2026-05-13T17:05:15Z https://pen.ius.edu.ba/index.php/pen/oai

oai:ojs2.pen.ius.edu.ba:article/4 2025-06-03T13:16:15Z pen:ART driver

Helminth-derived product(s): Source for potential therapeutic: Azizul Haque, Betul Akcesme, Jasminka Mujić, Una Glamočlija, Faruk Berat Akcesme Helminth parasites that inhabit mammalian body surfaces have a highly evolved relationship with the immune system. Many of these resident helminths carry out functions to ensure their survival in the hosts. To attain this objective helminth parasites adopt immunoregulatory mechanisms to counter host’s hostile immune response. Indeed, immunomodulatory molecules have been discovered in the worm’s extracts and in their excretion/secretion. In this review, we discuss the state of our understanding of the interplay between helminths and immune pathways. We also highlight the key challenges that must be confronted in identification of the helminth-derived molecules involved in immune modulation.  We consider whether helminth-derived signaling hold promise for the design of novel therapeutic approaches for the treatment of inflammatory disorders (inflammatory bowel disease, allergies, and autoimmune diseases). International University of Sarajevo 2013-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/4 10.21533/pen.v1.i1.4 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 1 (2013); 3-7 2303-4521 10.21533/pen.v1.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/4/2 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/5 2025-06-03T13:16:35Z pen:ART driver

A survey of aircraft materials: Design for airworthiness and sustainability: Kemal Yıllıkçı, Fehim Findik New developments in material science and its technologies find their best implementation areas in aircraft and space vehicles. Since the beginning of the powered flight, weight of airframes and systems are needed to be reduced.  They are developed and built by light, durable and affordable materials through highly disciplined design, development, test and certification as well as manufacturing processes.  Besides airframes, engineers are challenged to develop more efficient engines; both by reducing their weights and improving their aero-thermodynamic properties, sustaining higher operational and safety reliabilities along with complying stringent emission and noise restrictions. These conditions are increasing the demand for  the development  and the utilization of  advanced lighter, stronger and durable materials and alloys, ceramic coatings and relevant manufacturing processes.   In this study, current trends and future expectations from material technologies in general; for accomplishing higher expectations for future lighter airframes, aircraft systems and engines, are reviewed.  International University of Sarajevo 2013-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/5 10.21533/pen.v1.i1.5 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 1 (2013); 8-33 2303-4521 10.21533/pen.v1.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/5/3 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/6 2026-04-02T20:17:53Z pen:ART driver

Some properties of Cu-B4C composites manufactured by powder metallurgy: Ibrahim Altinsoy, Fatma Gözde Celebi Efe, Devrim Aytaş, Melike Kılıç, İbrahim Ozbek, Cuma Bindal In this study, some properties of cold pressed Cu-B4C composites were investigated. Commercial copper powders with 40 µm particle size were reinforced with B4C in a 40µm particle size at ratios of 0, 1, 2, 3 wt.% for improving mechanical properties of copper used for electrical conductivity. Cu-B4C composites have been fabricated by powder metallurgy method and sintered at 700C for 2h in open atmosphere and then subjected to cold pressing following sintering process.  The presence of Cu and B4C which are dominant components in the sintered composites were confirmed by X-ray diffraction analyses technique and SEM-EDS.  Scanning electron microscope (SEM-EDS) was showed that B4C particles are distributed homogenously in the copper matrix. The relative densities of Cu and Cu-B4C composites sintered at 700°C are ranged from 97.5% to 90.19%. Microhardness of composites ranged from 80.65 to 87.5 HB and the electrical conductivity of composites changed between 90.04 %IACS and 68.87 %IACS. It was observed that cold pressed Cu - 1 wt.% B4C composites revealed promising physical properties. International University of Sarajevo 2013-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/6 10.21533/pen.v1.i1.6 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 1 (2013); 34-38 2303-4521 10.21533/pen.v1.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/6/5 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/7 2025-06-03T13:14:37Z pen:ART driver

Continuous quality improvement in textile processing by statistical process control tools: A case study of medium-sized company Durakovic, Benjamin Basic, Hazim Maturity of companies, organizational culture and costs are some of the major limiting factors for implementation of cost-effective six sigma methodology in Bosnian companies.  Purpose of this paper is to analyze possibilities of applying six sigma concept in a medium-sized company with 200 employees. Considering all characteristics of the company, in this case, implementation model was proposed and tested. The project included process monitoring using statistical process control charts for two different periods, before and after improvement. Dominant defect and its causes were identified and it was found out that the process was out of control. Implementation of improvement measures, dominant defect was eliminated but the process has remained out of control. As a conclusion, the test indicated that the model is effective but it takes more iteration to achieve the desired state. International University of Sarajevo 2013-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/7 10.21533/pen.v1.i1.7 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 1 (2013); 39-46 2303-4521 10.21533/pen.v1.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/7/6 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/8 2026-04-02T20:19:25Z pen:ART driver

Modulated (spinodal) alloys: Fehim Findik In this work, after defining spinodal reactions experimental investigation on spinodal decomposition are overviewed for the last five decades. Also, future developments in spinodal decomposition for modulated alloys are forecasted and criticized in an outlook. International University of Sarajevo 2013-06-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/8 10.21533/pen.v1.i1.8 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 1 (2013); 47-55 2303-4521 10.21533/pen.v1.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/8/7 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/9 2025-06-03T13:23:45Z pen:ART driver

Data mining in higher education: Dina A. Aziz AlHammadi, Mehmet Sabih Aksoy Data mining is slowly but surely making its way into the educational field after dominating the business fields.  This paper focuses on the research completed in the area of data mining in the higher education sector: colleges and universities.  We will look at the different implementation of data mining and to what extent was it utilized and benefited from. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/9 10.21533/pen.v1.i2.9 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 1-4 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/9/8 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/10 2026-04-02T20:10:06Z pen:ART driver

Boosted networks for the diagnosis of cardiovascular diseases: Mehmet Can A boosting by filtering technique for neural network systems with back propagation together with a majority voting scheme is presented in this paper. Previous research with regards to predict the presence of cardiovascular diseases has shown accuracy rates up to 72.9%. Using a boosting by filtering technique prediction accuracy increased over 80%. The designed neural network system in this article presents a significant increase of robustness and it is shown that by majority voting of the parallel networks, recognition rates reach to > 90 in the V.A. Medical Center, Long Beach and Cleveland Clinic Foundation data set. International University of Sarajevo 2014-03-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/10 10.21533/pen.v2.i1.10 Periodicals of Engineering and Natural Sciences; Vol. 2 No. 1 (2014); 5-16 2303-4521 10.21533/pen.v2.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/10/9 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/11 2026-04-02T20:25:32Z pen:ART driver

Analyzing classified listings at an E-commerce site by using survival analysis: Ayhan Demiriz, Furkan Gökçegöz, Sümeyye Şen Sahibinden.com is a leading e-commerce site in Turkey where sellers (buyers) may advertise their goods (needs) with or without a fee.  Since it generates a large volume of traffic to the classified car listings, the site plays an important role for determining the market value of the used cars. In this study, we first randomly selected 200 car classifieds from 950 new classified ads on the day of February 22, 2012. We then observed these listings on a daily basis for a month to determine the possible updates and deletions of the ads. We assume that if an ad is taken out it means that the car has been sold. In addition to the cars’ features, we observed the posted price and the number of daily views of the ads throughout the data collection. Therefore one can construct survival models to study the effects of the features and price of a car on the life of the ad. In other words, it is possible to study that what features and price levels expedite the sales of used cars. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/11 10.21533/pen.v1.i2.11 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 17-21 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/11/10 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/12 2025-06-03T13:22:11Z pen:ART driver

Development of PIM components for robot surgery: Dong Yong Park, Fehim Findik, Seong Jin Park In this study, the micro forcep of end-effector for robot surgery was produced by powder injection molding. The 17-4PH stainless steel powder and binder system based on a wax-polymer were mixed to fabricate the feedstock. The optimum solid loading (vol. %) was determined by the torque rheometer experiments. After injection molding, debinding and sintering were carried out, final product having small and regular patterns was produced.  International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/12 10.21533/pen.v1.i2.12 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 22-24 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/12/11 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/13 2025-06-03T13:21:50Z pen:ART driver

Mechanical properties and corrosion behaviors in 3.5% NaCl solution of grade-A and dual-phase steels welded by FCAW: Hüseyin Uzun, Emrah Önal The first aim of this study is to demonstrate the transformation of Grade-A steel into dual-phase steel by heat-treatment at the chosen 730°C and 800°C intercritical temperature for 60 min followed by cold water quenching. The second aim of this study is to investigate the mechanical properties and the corrosion behaviours in 3.5% NaCl solution of Grade-A and dual-phase steels welded by flux-cored arc welding (FCAW). It was carried out the mass loss measurements and investigated the micro and macrostructures of welding zone using by optical microscope. The present study has demonstrated that Grade-A ship steel consisting of ferrite and pearlite can be successfully transformed to the dual-phase steel at the chosen intercritical temperatures. The microstructure of transformed dual-phase steel consists of island of martensite in a ferrite matrix. The Grade-A and transformed dual-phase steels were successfully joined by FCAW. The mechanical results showed that the tensile strength of the transformed dual-phase steel were higher, but lower elongation than that of the Grade-A steel. The results from the immersion test in 3.5% NaCl solution showed that the corrosion behaviours of the dual-phase and Grade-A steels depend upon the morphology of the phase constituents. The corrosion rate of the transformed dual-phase steel with ferrite-martensite structure was lower than that of the Grade-A steel with ferrit- pearlite structure. The corrosion has preferential started at fusion line and progressed towards the heat affected zone (HAZ) of the welded dual-phase and Grade-A steels. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/13 10.21533/pen.v1.i2.13 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 25-32 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/13/12 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/14 2025-06-03T13:21:28Z pen:ART driver

Quality management in logistics sector: Principles and practice: Sule Selcuk As it is the case for production and service sectors, one of the key ways for a logistics company to create sustainable competitive advantage is to differentiate itself from the rest with the quality that it offers. Researchers and practitioners have developed various quality improvement policies for logistics service providers and each of the policies addresses certain aspects of the business. This study individually evaluates the major quality approaches involved in an attempt to explore prospects of combining them in a way to maximize the benefit of their implementation. To promote applicability the quality approaches are analyzed from the perspective of customers as well as that of implementers of quality programmes. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/14 10.21533/pen.v1.i2.14 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 33-37 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/14/13 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/15 2025-06-03T13:21:15Z pen:ART driver

Production of functionally graded AlB2/Al-4%Mg composite by centrifugal casting: Ömer Savaş, Ramazan Kayikci, Ferit Ficici, Sakip Köksal In this study, production of functionally graded AlB2 reinforced Al-4%Mg composite has been investigated. In-situ high-aspect-ratio flake AlB2 reinforcement was obtained by the addition of boron oxide to the liquid Al-Mg at 1400 °C. It has been observed that there were two distinct regions without a smooth grading: one is rich of and the other is poor of AlB2. The results showed that the highest AlB2 content has been found to be around 10% in external zones, whereas the lowest AlB2 content has been observed to be 0.02% in the internal zones.  Additionally,   results showed that, depending on the increase in the reinforcement phase in external zones, up to 20 % increase in the hardness of the composite has been achieved. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/15 10.21533/pen.v1.i2.15 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 38-43 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/15/14 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/16 2025-06-03T13:20:59Z pen:ART driver

A conceptual framework of a cloud-based customer analytics tool for retail SMEs: Abdulkadir Hiziroglu, Halil İbrahim Cebeci Since customers are seen as a strategic element in a company’s downstream supply chain, many retail organizations have been employing a customer-centric business strategy and started investing into such technologies and solutions known as customer analytics that are capable of processing huge amount customer data for enhanced decision making. Customer analytics has been of significant importance in most developed economies around the world particularly for large organizations. The off-the-shelf analytics solutions provided by vendors are perceived to be unmanageable, risky and unaffordable especially for Small and Medium Enterprises (SMEs) operating in retail sector. This becomes more vital for the SMEs in developing countries especially in the Eastern part of Europe where they constitute a noteworthy part of the economy. The majority of the SMEs in these countries lack of facilities, infrastructure and abilities to perform such analytical applications. Not being able to extract strategic knowledge using customer data is a missing component for them to be competitive and sustainable in the market from relationship marketing point of view. The aim of this paper is to propose a conceptual model that addresses this problem by providing retail SMEs with a cloud-based open platform for customer data analytics and knowledge extraction. The platform will be able to connect with numerous apps already employed at the retail SMEs, acquire customer data and then perform customer analytics in order to produce a rich set of reports and knowledge. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/16 10.21533/pen.v1.i2.16 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 44-50 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/16/15 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/17 2025-06-03T13:20:43Z pen:ART driver

Science-technology park Ilidža as a generator of innovation potential and SME’s development in Bosnia and Herzegovina Petković, Darko Bašić, Hazim Duraković, Benjamin Prodanović, Sanja Many nations are currently adopting a variety of directed strategies to launch and support the development of research parks. Science and technology research parks are seen increasingly as a means to create dynamic clusters that accelerate economic growth and international competitiveness. Technology parks represent the place of SME's development and the place of the most direct technological transfer. Research parks encourage greater collaboration among universities, research laboratories, and SMEs, providing a means to help convert new ideas into the innovative technologies for the market. They are recognized to be a tool to create successful new companies, sustain them and attract new ones, especially in the science, technology, and innovation sector. Universities, in turn, benefit by exposure to the business world. What all these parks have in common is that they are, at heart, knowledge partnerships that foster innovation. University research and science parks provide the launch pad that startup companies need when they are "spun out" from a university or company. The current state of development of technology parks in Bosnia and Herzegovina and possibilities of establishment of a new technology park in Sarajevo (Ilidža) region are analyzed in this paper. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/17 10.21533/pen.v1.i2.17 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013) 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/17/16 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/18 2025-06-03T13:20:24Z pen:ART driver

Hot tear-melt quality relationship in 3xxx aluminium alloys: Murat Colak, Engin Tan, Ramazan Kayikci, Derya Dispinar Corrosion resistance, formability and high strength is few of the major properties that makes aluminium alloys preferred choice of material for extrusion or deep drawing processes. Particularly, buildings, windows, doors are main application areas and it is growing. Twin roll casting method is used to produce such materials. One of the common problems faced in this method is called hot tearing. The effect of alloying elements is the reason for this defect. As a result, segregation causes tear and decrease process efficiency. The economic impact is immanent. Thus, it is aimed to study the hot tear tendency of 3xxx series aluminium alloys and the effect of alloying elements will be investigated in this work. International University of Sarajevo 2013-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/18 10.21533/pen.v1.i2.18 Periodicals of Engineering and Natural Sciences; Vol. 1 No. 2 (2013); 56-62 2303-4521 10.21533/pen.v1.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/18/17 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/19 2025-01-27T12:21:17Z pen:ART driver

Estimation of stresses on 155mm artillery projectiles during launch phase using numerical simulations Catovic, Alan Razic, Faruk Kljuno, Elvedin The paper provides an overview of research (analytical, numerical, and experimental methods) related to the stress state of artillery projectiles during movement through the barrel of the weapon. The characteristics of the 155mm HERA M549 and 155mm HE M795 projectiles, used in numerical simulations, are described. As a main goal of the research, numerical simulations were performed with the 155mm projectiles to determine the maximum equivalent stresses that occur during the launch of this ammunition. The obtained values were compared with the yield limit of the materials of the projectile components, in order to assess whether the plastic deformation would occur during the launch phase. International University of Sarajevo 2024-01-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/19 10.21533/pen.v12.i1.19 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 19-36 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/19/19 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/20 2025-01-04T20:15:12Z pen:ART driver

Optimizing the geometry of a cylindrical dielectric resonator antenna (CDRA) in combination with the design of a microstrip patch antenna to improve antenna efficiency Alateewe, Hussein Turki Nagy, Szilvia The primary objective of this study is to improve the efficiency of dielectric resonator antennas (DRAs) by the manipulation of their geometric and material characteristics. Two distinct cylindrical dielectric resonator antenna (DRA) with microstrip patch antenna designs chosen, and deliberate modifications implemented in a systematic manner to enhance crucial characteristics including gain, bandwidth, S-parameters, voltage standing wave ratio (VSWR), and directivity. Furthermore, an investigation was conducted to assess the efficacy of incorporating additional layers into the design of the DRA to achieve increased gain and enhanced efficiency at a frequency of 28 GHz. The research encompassed the process of collecting and designing and simulating CDRA and microstrip patch antenna antennas utilizing the CST framework. The study investigates different configurations of apertures and alterations or holes in the patch geometry to improve both the gain and efficiency. A comparative analysis between both antennas was carried out utilizing performance criteria such as S-parameters, gain, directivity, bandwidth, and VSWR and efficiency. The discourse explores the progress made in the field of technology pertaining to the improvement of gain and bandwidth. This includes the utilization of high-dielectric-constant materials, modifications in resonant frequencies, and the implementation of metamaterial (MTM) cells. The CST program is utilized for conducting realistic trials and assessments. The research highlights the advantages of CDRA antennas and microstrip patch antennas, including improved radiation efficiency, smaller size, lower profile, and lightweight design. The integration of photonic crystal layers into the design of the cylindrical dielectric resonator antenna (CDRA) was emphasized as a noteworthy enhancement, resulting in amplified gain. The significance of considering both intrinsic characteristics and external factors, such as surface Plasmon waves, in the computational modeling of DRA antennas to achieve maximum efficiency is emphasized by the research. International University of Sarajevo 2024-01-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/20 10.21533/pen.v12.i1.20 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 5-18 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/20/18 Copyright (c) 2024 Hussein Turki Alateewe, Szilvia Nagy (Author) https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/21 2025-01-04T20:17:54Z pen:ART driver

Particulate composites, analysis techniques and applications Findik, Fehim The combination of at least two of the metal, ceramic or polymer groups at a macro level is called a composite material and, in this way, better properties are obtained. Composites can be partitioned into three groupings as layered, fiber and particle reinforced. Particulate composites offer flexibility in composition and component design and are isotropic. This investigation critically examines analysis techniques for particulate composites such as dimensional measurements, property distribution, composition and phase tests, density, and porosity tests (e.g. Archimedes, Pycnometer), hardness measurements (e.g. Brinell, Rockwell), mechanical properties through non-destructive and destructive testing (e.g. tensile, impact). In addition, application areas of particulate composites are highlighted, including Al-SiC composites for aircrafts, cemented carbides for tool metals, dental porcelain, electrical contacts, friction products, and thermal materials. International University of Sarajevo 2024-02-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/21 10.21533/pen.v12.i1.21 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 37-54 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/21/20 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/22 2025-01-04T20:21:40Z pen:ART driver

Comparison of lean cellular manufacturing organization models: Multiple case study analysis Bajrić, Hadis Ferizbegović, Faris Begić-Pecar, Mirela Cellular manufacturing represents a production system arrangement in which machines, tools, workers, and devices are grouped to produce a single product or a group of products with similar production requirements. By implementing cellular manufacturing, it is possible to significantly influence the elimination of the seven types of Lean waste: transport, inventory, unnecessary motion, waiting, overproduction, overprocessing, and defects. There are various models of a cellular manufacturing organization, and some of the most widely used and studied include the Toyota Sewing System, Bucket Brigades, Working Balance, and Rabbit Chase. This paper aims to present different types of lean cellular manufacturing organizations. By reviewing the literature, the advantages and disadvantages of individual types of cellular manufacturing will be systematized. In the practical part of the paper, the theoretical assumptions will be confirmed, and the impact and robustness of individual types of cellular manufacturing will be explored in different situations. Simulations were performed in real conditions on real products to demonstrate the efficiency of individual types of cellular manufacturing organizations depending on the duration of technological operations. The goal was also to examine the robustness of individual types of cellular organization in case of the absence of certain operators or insufficiently trained operators. The criteria used to compare different cellular models were productivity, non-conformance, WIP inventory, time to deliver the first correct piece, and flow time. Simulations were performed for the Toyota Sewing System, Bucket Brigade, Working Balance, and Rabbit Chase cellular manufacturing concepts. The simulation results indicate significant differences in the performance of individual concepts, where the difference in some criteria can reach up to 100%.   International University of Sarajevo 2025-01-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/22 10.21533/pen.v12.i1.22 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 55-74 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/22/21 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/23 2025-01-04T20:26:26Z pen:ART driver

A survey about deep learning and federated Learning in cyberse-curity Tareq, Imad Elbagoury, Bassant M. El-Regaily, Salsabil El-Horbaty, El-Sayed M. Advances in Artificial Intelligence (AI) technology have led to the strengthening of traditional systems' cybersecurity capabilities in a variety of applications. However, these embedded machine learning models have exposed these systems to a new set of vulnerabilities known as AI assaults. These systems are now attractive targets for cyberattacks, jeopardizing the security and safety of bigger systems that include them. As a result, DL approaches are critical to transitioning network and system protection from providing safe communication between systems to intelligence systems in security. Federated learning (FL) is a new kind of AI based on heterogeneous datasets and decentralized training. FL is a unique research topic that is currently in its early phases. It has not yet gained wide acceptance in the community, owing mostly to privacy and security considerations. In this research, we first shed light on its privacy and security risks that must be discovered, analyzed, and recorded. FL is favored in scenarios where privacy and security are paramount issues. An extensive understanding of risk factors allows an FL adopter and implementer to construct a safe environment successfully while giving researchers a clear perspective of possible study domains. The survey in this paper intends to include an analysis of cybersecurity and DL approaches and modern advances to improve enhanced protection methods. It proposes a complete examination of FL's security and privacy issues to assist in bridging the gap between the current level of federated AI and a future in which broad adoption is achievable. We also propose a range of cybersecurity datasets and the most recently used rating standards.  International University of Sarajevo 2024-02-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/23 10.21533/pen.v12.i1.23 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 75-100 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/23/22 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/24 2025-01-04T20:31:14Z pen:ART driver

Developing a new model to control risk and improve quality in the construction industry by integrating risk management and quality function deployment Abdulrahman, Al Tekreeti Ahmed Muneer The construction industry is considered an indicator of a country's development through buildings, residential complexes, investment projects, roads, bridges, and infrastructure projects. Dynamic and complex features characterise this industry, which is directly and significantly affected by external and internal factors, in addition to the influences of its stakeholders. These characteristics and factors are considered one of the main reasons for generating risks in this industry, which can affect the quality and reputation of the construction project if its Risk Management systems are not followed systematically and correctly. Poor quality of construction projects has become a visible and widespread feature worldwide, including in Malaysia. Risk management is still applied on a low level in many projects within the construction industry. Quality Function Deployment is considered an essential modern system that focuses on quality, customer needs, and satisfaction, which can serve the construction industry if linked with risk management tools. The study's primary purpose is to find the relationship between RM and the QFD and develop a modern model for risk control in the construction industry through their integration. The conceptual framework of the proposed model is developed and applied to stakeholders in the construction industry in Malaysia. The results confirmed a solid, complementary, and interconnected relationship between RM and QFD, which can develop a new model for controlling risks and thus improve the construction project's quality. The results of the study recommended adopting this model. Recommendations were made to researchers to develop the model in the future to include broader areas in the construction industry. International University of Sarajevo 2024-02-14 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/24 10.21533/pen.v12.i1.24 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 101-122 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/24/23 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/25 2025-01-04T20:37:48Z pen:ART driver

Financial education from elementary school, a perspective to today Bernedo-Moreira, David Hugo Almirón-Cuentas, Juan Alberto Espiritu-Martinez, Antony Paul Ochoa-Tataje, Freddy Antonio Romero-Carazas, Rafael Regular basic education imparts knowledge based on addition, subtraction, multiplication, division and reading; Additionally, and depending on the type of educational institution, other knowledge is imparted such as religion, arts, historical and social sciences, study of geography, universal history, education and civics, etc. This leads us to reflect on the type of education that is being promoted for school children today, which is not bad if all plans are fulfilled, but what happens when money is not enough until the end of the month, or when there are problems to pay the mortgage, or when there is uncertainty about the cost of living, taxes, interests. There is a crisis within a crisis, all of this demonstrates the lack of good financial education. Therefore, through the qualitative approach, we resorted to the phenomenological-hermeneutic design, and the objective was to explore the financial education provided in elementary school, and how this has served to survive during the post-school stage. The population of interest was the graduates of public and private schools, as well as professionals dedicated to teaching of the same generation. The participants expressed their opinions and beliefs on the relevance and necessity of including financial education in the school curriculum from an early age. The study provides information on these experiences, providing a basis for establishing corrective measures and formulating guidelines to promote its teaching at some pre-professional preparatory stage. International University of Sarajevo 2024-04-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/25 10.21533/pen.v12.i1.25 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 123-134 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/25/24 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/26 2025-01-04T20:43:14Z pen:ART driver

The influence of agricultural planting in rural landscape design and tourism development — A case of Shandong Yinshi Village Bai, Jie Johar, Suhana Binti Mohammad, Noraziah Binti Within the framework of China's rural revitalization strategy, there is a notable positive trend in rural construction and development across various regions, accompanied by a burgeoning interest in rural tourism development.  This paper focuses on Yinshi Village in Linqu County, Shandong Province, examining how the village capitalizes on its persimmon industry to shape, design, and advance tourism development within its rural landscapes. The results of this study illustrate that the persimmon industry plays a pivotal role in diversifying rural landscapes, improving the overall planning and design of rural areas, enhancing the attractiveness of rural tourism, and boosting the economic prosperity of the local population. This research contributes valuable development strategies for integrating agricultural planting into rural landscape design and tourism development. Moreover, it investigates the substantial influence of agricultural planting on both rural landscape design and tourism development, ultimately providing insights and experiences that are applicable not only in China but also in similar regions globally. International University of Sarajevo 2024-05-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/26 10.21533/pen.v12.i1.26 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 135-145 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/26/25 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/27 2025-01-04T20:47:14Z pen:ART driver

Optimal emission plan for independent power producers using generation mix to meet Saudi Arabia environmental goals AL-Ghamdi, Amer A. Alhazmi, Yassir A. The production and use of energy in today's world is heavily reliant on fossil fuels, which is associated with several economic and environmental problems. This study addresses the possibilities of integrating fossil fuel generators with renewable energy systems utilizing various mix-generating scenarios while act as a new emission pricing approach, in line with the current trend towards renewable energy. The suggested carbon incentive scheme includes carbon taxes, carbon permits, and tiers of carbon emissions restrictions (emission factors). The approach seeks to lessen the damaging effects of CO2 emissions on the environment and to compel energy providers to cut back on fossil fuel output and carbon dioxide production. The study, which exclusively analyzes independent Power Producers (IPPs), looks at many desalination facilities in Saudi Arabia that are situated along the Arabian Gulf and Red Sea coasts for 40 years, from 2025 to 2064. The primary objective of the article is to support the best generation mix, taking into account the suggested carbon pricing technique and renewable energy-producing technologies like wind turbines and solar cells, at the chosen locations. The impact of integrating renewable energy on overall costs, including the new price for carbon emissions, is also examined in this study. The impact of various tariffs on supporting the production of renewable energy is covered in the study. The study addresses as well fossil fuel costs. Accordingly, these cost effects on the development of renewable energy sources are investigated additionally. This research has produced a control emission plan for achieving the CO2 limit. The Kingdom of Saudi Arabia's objectives to achieve zero carbon emissions by 2064 are obtained and presented in a case study. In this suggested work, every case study is modeled using the simulation tool HOMER-GRID. International University of Sarajevo 2024-05-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/27 10.21533/pen.v12.i1.27 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 146-168 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/27/26 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/28 2025-01-04T20:50:47Z pen:ART driver

Integration of ChatGPT in e-Learning Systems: Comprehensive review Halachev, Peter The process of integrating artificial intelligence (AI) technologies, particularly ChatGPT, into e-learning has attracted considerable attention due to the potential to improve personalized education or education based on personally oriented technologies. The aim of the study is to investigate the process of integrating ChatGPT into e-learning systems, focusing on the interpretation of the results. To study the issue of ChatGPT integration in e-learning, a detailed review of the current scientific literature was conducted. Accordingly, a thorough research search covered articles from 2020 to 2023, revealing an increase in publications in recent years. An in-depth analysis of 101 publications revealed a significant interest in the use of ChatGPT to deliver personalized and adaptive learning. The results showed that the integration of ChatGPT increases the effectiveness of e-learning by adapting the content to the individual needs of all participants in the learning process. It was also shown that ChatGPT can adjust the complexity of the content according to the learner's level of understanding, provide feedback and support, and facilitate the creation of individual learning tools. The results show that the process of integrating ChatGPT into an online learning space offers many opportunities, such as personalized learning paths and rapid assessment. However, certain challenges need to be addressed, such as infrastructure limitations and ethical considerations.  International University of Sarajevo 2024-05-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/28 10.21533/pen.v12.i1.28 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 169-182 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/28/27 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/29 2025-01-04T21:07:28Z pen:ART driver

The impact of Cognitive Behavioral Therapy (CBT) program on anxiety disorder and memory recall Al-Habies, Feras Ali Mohammad Tarawneh, Hussein Al Dalaeen, Issam Duhelan Abed Al Nabi Tarawneh, Haya Hussien Dawaghreh, Sawsan Adnan Jawarneh, Abedalraheem Ismail Ahmad Al-Ja’afreh, Somaya Abdel-Hameed Ateeq Alorani, Omar Ismail Hamzeh The efficient treatment of anxiety-related disorders and memory recall is significant, regarding the occurrence of these disorders and their relationship with poor psychology operational. Thus, this study aims to measure the modern evidence on the efficacy of CBT on anxiety- disorders and memory recall in elderly in Amman, Jordan. Quasi-experimental intervention was conducted combined with qualitative approach. Purposive sampling method was used to sample 46 elderly resident in Amman. Feedback and observation were used to collect qualitative data. The tests of “The State-Trait Anxiety Inventory” (STAI), “Rey Auditory Verbal Learning Test” (RAVLT), and Narrative Recall Assessment (NRA) were used to collect the data. SPSS 25.0 and NVivo software analyzed the data.   The findings show that the Cognitive Behavioral Therapy program has a positive effect on anxiety decreasing, memory function and recalling in elderly people. Three major themes emerged “improved coping, increased confidence, positive engagement”. The positive findings highlight the importance of personalized CBT interventions in improving mental health among elderly people residing within an institutionalized care setting. The study contributions, recommendations, and future directions were explained at the end of the study. International University of Sarajevo 2024-05-17 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/29 10.21533/pen.v12.i1.29 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 183-190 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/29/28 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/30 2025-01-04T21:05:49Z pen:ART driver

From traditional finance to neurofinance: Literature review Faris, Ali Ahmed Jwan, Hayder Khudhair Al-Bidairi, Karrar Hatam Attieh The research aims to study a new branch to financial decision-making called neuro-finance, as it provides an another explanation for the failure of behavioral finance, which came recently in research and studies as a new way to analyze the factors that have a role in financial decision, One of the objectives of this research is to develop a systematic review based on many published papers and articles on neurofinance to organize the main ideas and issues that have addressed the neurophysiological links of financial choices.  After reviewing many studies on neurofinance, we conclude that researchers debate about neurofinance in the early stages, but the results reached by most researchers are that neurofinance is of wide interest by researchers in financial management, and this research is important not only for reviewing previous studies, but rather a guide to assist researchers and scholars interested in this topic by collecting and analyzing previous studies. International University of Sarajevo 2024-05-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/30 10.21533/pen.v12.i1.30 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 191-204 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/30/29 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/31 2025-01-04T21:13:25Z pen:ART driver

The influence of corporate governance and Shariah governance on insolvency risk: Evidence from developing market Mebid, Al Jammas Raya Idan Mohd, Syajarul Imna Abdul-Rahman, Aisyah Ghazali, Mohd Fahmi The goal of the study was to determine how corporate governance and Sharia governance affected the risk of insolvency in banks located in Iraq and the Gulf Cooperation Countries (GCC). The moderating influence of foreign ownership in banks on the association between the two levels of governance and bankruptcy risk was also examined in this study. For the years 2012–2021, the study covered 70 banks listed in Iraq and the seven GCC countries. Three distinct regression models were utilized in the study: ordinary least squares, variable effect model, and fixed effect model. To select the best model and discover the analysis's findings, a comparison of the models was done. The findings showed that insolvency risk and corporate governance had a negative association. While there was no effect of Sharia governance on insolvency risks. The study found that foreign ownership also plays a major role in the interaction. The study provides a valuable unified indicator through which corporate governance and Sharia law can be measured in the GCC and Iraq. It gives decision-makers an accurate view of the risks of insolvency and ways to control them. International University of Sarajevo 2024-05-23 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/31 10.21533/pen.v12.i1.31 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 205-222 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/31/30 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/32 2025-01-04T21:17:36Z pen:ART driver

Enhancing machine translation: syntax and semantics-based word type and function extraction through multi-task transfer learning in Indonesian, Tolaki, and English Yamin, Muh Sarno, Riyanarto Tambunan, Tambunan This research aimed at constructing an effective Machine Translation (MT) system for the Indonesian, Tolaki, and English languages by integrating in-depth morphological, syntactic, and semantic analyses. Utilizing both supervised and unsupervised methods such as TF-IDF, Word2vec, BERT, and semantic similarity, this research extracted Indonesian and Tolaki words, categorizing them based on function and type within sentences and documents. The research method involved developing a morph tool to capture morphological elements, followed by rule-based algorithm formulation for syntactic analysis to extract word functions and types influencing translation within sentences. Three MT methods, Rule-Based MT (RBMT), Statistical MT (SMT) and SMT-RBMT (hybrid), were tested for translation accuracy. With an average accuracy of approximately 70%, the evaluation of the hybrid MT method demonstrated its superiority over SMT and RBMT, yielding translation accuracies of 0.71 from English into Indonesian into Tolaki and 0.74 from Indonesian into Tolaki into English. International University of Sarajevo 2023-06-16 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/32 10.21533/pen.v12.i1.32 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 223-235 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/32/31 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/33 2025-01-04T21:22:25Z pen:ART driver

Advanced detection and discrimination of power transformer internal faults from other abnormal condition using DWT-based feature extraction and ANN classification Alhamd, Qusay Saniei, Mohsen Seifossadat, Seyed Ghodratolah Power transformers are one of the most critical elements of the electrical Power System because of the aforementioned function in the voltage regulation and power supply. It is very important in the field of power engineering to be able to differentiate the inrush currents caused due to the energization of the transformer from the internal fault currents created in the transformer. This paper represents an efficient approach to solving this issue by employing DWT feature extraction and ANN classification. This approach is based on the determination of waveforms by distinguishing the D4 and D5 coefficients of instantaneous differential currents using DWT. These coefficients present much useful information related to the waveform type, making it possible to differentiate between the inrush and the internal fault currents. This is a key factor when making classification in that these criteria are related to the energy content involved within these coefficients. This energetic approach forms the basis for the ANN controller to determine particular decisions about the quality of the current. This proposed approach is supported with simulation to represent empirical data in supporting the use of this approach. The results always confirm the efficiency of such an approach to the differentiation between inrush and internal fault currents with a high percentage of accuracy. The effectiveness of this method goes beyond accuracy as it is reliable, responds quickly to abnormal conditions, and can be applied to a variety of power transformer types. Applying this concept in real grid power systems can lead to increased reliability and less downtime thereby strengthening the electrical system as a whole. The reliability and safety of power transformers remain a critical concern in power engineering. The present paper proposes a new method to improve power transformer protection for differentiating internal faults from other abnormal situations. The method described herein utilizes advanced signal processing and machine learning with the help of DWT and ANN to reach higher standards of accuracy and reliability. International University of Sarajevo 2024-06-28 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/33 10.21533/pen.v12.i1.33 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 1 (2024); 236-254 2303-4521 10.21533/pen.v12.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/33/32 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/34 2025-01-04T21:32:29Z pen:ART driver

Feasibility analysis of the application of restricted buckling braces as a response control system Orellana, Alan Orellana, Eugenio Flores, Victor Andre Ariza Peru is a country with high seismic activity, necessitating the implementation of seismic response control techniques in its buildings to enhance protection without incurring high costs. Although seismic response control systems are already in use, displacement-activated energy dissipators, such as buckling restrained braces (BRB), are not yet common in Peru, unlike in other countries where they are widely used. Therefore, the purpose of this study is to redesign a structural steel building using buckling restrained braces as a seismic response control system. Secondary objectives include analyzing the theoretical principles behind the design of these elements, determining the most appropriate configuration for the specified building, evaluating the proposed reinforcement through nonlinear analyses, and comparing performance differences with and without the use of BRBs. For this, both national and international standards such as the Peruvian seismic-resistant design standard E030, ASCE 7-16, AISC 341-16, and AISC 360-16, among others, were applied. The process began with an extensive compilation of information and bibliographic review, followed by the selection of the steel building for redesign with the new response control system. The main configurations of BRB suitable for the proposed analysis direction were explored and selected. Subsequently, the building design was initiated, starting with the sizing of the BRB cores and their verification under the Peruvian standard E030 through a linear dynamic analysis. The design was then evaluated by adjusting the force distributions of the BRBs in the other frame components. Finally, a comparison of the structural performance of the system with BRBs versus the original SCBF system was conducted through a nonlinear static analysis, concluding with a nonlinear dynamic Time-History analysis to verify the building's maximum responses, such as drifts, displacements, forces, and dissipated energy. International University of Sarajevo 2024-07-03 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/34 10.21533/pen.v12.i2.34 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 255-270 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/34/33 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/35 2025-01-04T23:40:59Z pen:ART driver

Comparative approach between traditional banking marketing and participative banking marketing Jihad, Benatia Oussama, Bourkiza The efficient treatment of anxiety-related disorders and memory recall is significant, regarding the occurrence of these disorders and their relationship with poor psychology operational. Thus, this study aims to measure the modern evidence on the efficacy of CBT on anxiety- disorders and memory recall in elderly in Amman, Jordan. Quasi-experimental intervention was conducted combined with qualitative approach. Purposive sampling method was used to sample 46 elderly resident in Amman. Feedback and observation were used to collect qualitative data. The tests of “The State-Trait Anxiety Inventory” (STAI), “Rey Auditory Verbal Learning Test” (RAVLT), and Narrative Recall Assessment (NRA) were used to collect the data. SPSS 25.0 and NVivo software analyzed the data.   The findings show that the Cognitive Behavioral Therapy program has a positive effect on anxiety decreasing, memory function and recalling in elderly people. Three major themes emerged “improved coping, increased confidence, positive engagement”. The positive findings highlight the importance of personalized CBT interventions in improving mental health among elderly people residing within an institutionalized care setting. The study contributions, recommendations, and future directions were explained at the end of the study. International University of Sarajevo 2024-07-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/35 10.21533/pen.v12.i2.35 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 271-293 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/35/34 Copyright (c) 2024 Benatia Jihad, Bourkiza Oussama (Author) https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/36 2025-01-04T21:43:54Z pen:ART driver

Study of the impact of special educational programmes on the psycho-emotional well-being of students Iskakova, Mira Kaldygozova, Sandugash Ussenova, Akkenzhe Junissova, Ainura Shomanbaeva, Almira The purpose of the study is to investigate the impact of special educational programmes on the psychological and emotional development of higher education students. To achieve this goal, survey methods were used (200 participants). The method of content analysis was used to study the scientific literature on this issue. The results show that the use of modern programmes has led to a number of organisational challenges related to ensuring a stable Internet connection and limited opportunities to acquire practical skills that are important for many specialities. This situation caused particular anxiety among students. The study showed that students generally have a positive perception of the use of modern technologies and methods. However, there are also negative aspects of constant interaction with the digital environment, such as atomisation, problems with soft skills development, the risk of emotional burnout, etc. Overcoming these challenges is possible through the evolution of the organisation of the educational process. The creation of smaller academic groups of students provides opportunities for deeper interaction and the development of relevant communication skills. The conclusions emphasise that the development and implementation of new methods that can quickly adapt to modern educational environments is a promising area for further research.  International University of Sarajevo 2024-07-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/36 10.21533/pen.v12.i2.36 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 294-302 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/36/35 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/37 2025-01-04T21:47:38Z pen:ART driver

Using numerical simulations for estimating the influence of different parameters of long rod kinetic energy penetrators Catovic, Alan Razic, Faruk Simulations were performed with long rod kinetic energy penetrators to characterize important parameters used. Hohler & Stilp's experimental results served as the initial validation for the numerical model. Additionally, using numerical simulations, the impact of various (possible) penetrator materials on their penetration depth is illustrated. Additionally, the effects of using a steel jacket (sheath) over the penetrator and the penetrator fineness ratio (L/D) were examined. Research showed that the choice of penetrator material can significantly affect the penetrator's effectiveness. With a penetrator of depleted uranium alloy (0.75% titanium), the maximum penetration depth was attained. It was shown that when increasing the penetrator fineness, the increase in penetrator length has a large influence on penetration depth. Decreasing the penetrator diameter the penetration depth is also decreased. Numerical simulations also showed that to minimize penetration degradation, the penetrator jacket must be relatively thin. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/37 10.21533/pen.v12.i2.37 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 303-314 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/37/36 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/38 2025-01-04T21:54:49Z pen:ART driver

The impact of strategic leadership on strategic performance in higher education institutions: The mediating role of change management Atoum, Yumna Ahmad Alrawashedh, Nahed Almarashdah, Manal Harahsheh, Alaa Al qudah, Shaker Zraqat, Omar Hussien, Lina Alamad, Tamara This study aims to identify the impact of strategic leadership (SL) in enhancing strategic performance (SP) using the balanced scorecard (BSC) approach in Jordanian higher education institutions. In addition to identifying what change management (CM) can provide in explaining the role of SL in enhancing SP. The study population consisted of all official universities in Jordan, which numbered (11) official universities. The study followed a comprehensive survey method, where questionnaires were distributed to all official universities. The sampling unit consisted of deans of colleges in official Jordanian universities. The sample size was 350 respondents. The recovered questionnaires were (238) questionnaires. The results of analyzing the study data indicated that there was an effect for all dimensions of SL on SP. The study also found that all dimensions of SL affect SP in Jordanian official universities. Finally, the results of the data analysis indicated that the CM variable plays a mediating role in the impact of SL on SP. Based on the results, the study recommends the need for Jordanian official universities to pay attention to strengthening aspects of SL among current and future leaders and raising them to higher levels. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/38 10.21533/pen.v12.i2.38 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 315-330 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/38/37 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/39 2025-01-04T21:58:01Z pen:ART driver

A big data approach to risk management and control: Cybersecurity in accounting Halachev, Petar This research reviews into the critical interplay between big data applications and cybersecurity risks within the accounting sector. Aimed at understanding how big data can mitigate these risks, the study develops a novel theoretical model using differential equations. This model, rooted in a thorough empirical approach, undergoes validation through logistic regression analysis of responses from 200 participants. The analysis particularly focuses on how demographic and socio-economic factors influence cybersecurity perceptions. Data Breach Consistency emerges as a key factor, evidenced by a coefficient of 1.204 and an odds ratio of 3.331, indicating a substantial link between the recognition of data breaches and increased cybersecurity concerns. Malware and Ransomware concerns demonstrate a notable impact, with a coefficient of 0.907 and an odds ratio of 2.477, underscoring the gravity of these threats. Results further highlight the mitigating influence of Big Data Mitigation on cybersecurity risks, marked by a coefficient of 0.491. The robustness of the model is affirmed by an Area Under the Curve (AUC) score of 0.843, attesting to its efficacy in predicting cybersecurity concerns. The findings highlight the vital role of big data in formulating effective cybersecurity strategies. This study not only contributes to the academic discourse on the intersection of big data and cybersecurity in accounting but also offers practical insights for enhanced decision-making and policy formulation in the evolving digital business environment. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/39 10.21533/pen.v12.i2.39 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 331-342 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/39/38 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/40 2025-01-04T22:02:30Z pen:ART driver

Measuring the impact of imports on the gross domestic product in Iraq for the period 2004-2021 Ahmed, Mohammed Sami Boujelbene, Younes The research was conducted to ascertain the impact of imports on Iraq's GDP, which is a critical element in the development of economic policies and strategies. The study demonstrated that imports had a detrimental impact on Iraq's GDP in both the short and long term by employing the Autoregressive Distributed Lag (ARDL) model to examine the relationship between imports and domestic product. According to the short-term elasticity value of (-0.24), the increase in imports resulted in a 24% decrease in GDP in Iraq, with a minor 1% offset in other sectors. This decrease in GDP underscores the substantial influence that an increase in imports can have on a nation's overall economic performance. This research emphasises the significance of evaluating the effects of import trends on technological advancements, resource allocation, and infrastructure projects in Iraq. Engineers and policymakers can strive to create sustainable solutions that foster domestic production, innovation, and economic growth in the long term by acknowledging the detrimental impacts of excessive imports on GDP. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/40 10.21533/pen.v12.i2.40 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 343-354 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/40/39 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/41 2025-01-04T22:09:13Z pen:ART driver

Motives for using critical thinking skills among gifted and non-gifted adolescent students Alzoubi, Ahmad Mohammad Alsalhi, Najeh Rajeh Abdelrahman, Rasha Mohamed Alakashee, Bushra Ahmed Al Gharaibeh, Fakir Alqawasmi, Abdellateef This study aimed to identify the motives for using critical thinking skills among gifted and non-gifted students. A measure of motivation for using critical thinking skills prepared by Valenzuela & et al., 2011 was used, which includes two dimensions: motivation for use based on expectation and value. The results showed that the level of motives for using critical thinking skills among gifted students was high, while the level was medium among non-gifted students. The results also indicated that there were statistically significant differences in the dimension of expectation and the total degree of the motives of use due to gender in favor of male students. The study also found statistically significant differences in the dimensions (expectation, value) and the total score of the motives of use due to the classification of students (gifted or non-gifted) in favor of gifted students. The study recommended teachers and curriculum developers to find strategies and activities that would raise the level of motivation for critical thinking among non-gifted and female students. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/41 10.21533/pen.v12.i2.41 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 355-368 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/41/40 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/42 2025-01-04T22:12:48Z pen:ART driver

The impact of corporate governance on the quality of accounting information and its reflection on the share prices of companies listed on the Iraqi stock exchange Saleh, Waseem Abdullah BenMabrouk, Houda  The study's overarching goal is to provide light on the connections between corporate governance processes and the financial information provided by company executives. Highlighting the impact of these mechanisms on the reliability of financial reporting and how this influences stock price movements is one of the secondary goals. In order to achieve our goals and address our questions, we relied on the descriptive analytical technique. Additionally, the researcher drafted and sent surveys to the study's participants, who were well-informed individuals with extensive backgrounds in either working for or investing in major companies traded on the Iraqi Stock Exchange. The study's sample size was determined using the random sampling procedure; a total of 168 questionnaires were included in the final count after 180 were sent out and returned. The research concluded, among other things, that "there is a statistically significant effect of corporate governance on corporate prices" after examining the data and evaluating the hypotheses. Stocks, even after accounting data quality is considered as a mediator variable. Corporate governance has an indirect impact on stock prices via its effect on accounting information quality, according to the path analysis. Our research shows that both corporate governance and accounting information quality significantly affect stock prices, with accounting information quality mediating the relationship between the two. Accounting information quality has a statistically noteworthy effect on stock prices. With a big (t) value (6.35), the influence factor (beta) for relative importance is statistically significant with a value of 0.000. Meaning that both relative importance and corporate governance have a direct and statistically significant impact on stock prices and accounting information quality, respectively. A positive and statistically noteworthy effect on accounting information quality is shown by internal governance mechanisms, which have an effect size (beta) of 0.318, a t-value of 5.64, and a p-value of 0.000. There is a positive and statistically substantial outcome of external governance systems, as shown by their impact factor (beta) of 0.397, t value of 6.31, and significance level of 0.000. The beta impact factor (beta) for internal governance procedures is 0.198, the t-value is 2.49, and the significance level is 0.014, all of which point to a positive and statistically significant effect on stock prices. This study is useful in the account systems of many companies, including industrial engineering companies. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/42 10.21533/pen.v12.i2.42 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 369-376 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/42/41 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/43 2025-01-04T22:16:13Z pen:ART driver

The impact of good governance on integrated reporting in Iraqi banks Al-Hachami, Ali Mohammed Askar Mabrouk, Houda Ben In natural sciences, corporate governance is essential for research institutions, ensuring transparency, accountability, and ethical conduct in scientific endeavors. For instance, in environmental science, good governance practices can help in the conservation of natural resources and the protection of ecosystems. The study mentioned emphases on the correlation between good governance and the quality of integrated reports in Iraqi banks. This has implications for engineering and natural sciences as well. By emphasizing the importance of governance in financial institutions, the study highlights the significance of accountability, transparency, and ethical practices in all sectors. Moreover, the role of the board of directors in defining strategies and promoting best practices can be applied to various industries, including engineering projects and scientific research. Overall, the outcomes for this paper underscore the importance of good governance practices in fostering organizational success and promoting a holistic view of operations. By incorporating these principles into engineering and natural sciences, organizations can enhance their performance, credibility, and impact on society. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/43 10.21533/pen.v12.i2.43 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 377-390 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/43/42 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/44 2025-01-04T22:21:12Z pen:ART driver

The quality of disclosure of accounting information and its impact on financial performance and its determinants based on accounting information systems: A study on a sample of companies listed on the Iraqi stock exchange AL-Swaidawi, Mohammed Mushref Hammad BenMabrouk, Houda The study aimed to understand and clarify the quality of disclosure of accounting information and its impact on financial performance in many companies including technological and engineering companies and its determinants by relying on accounting information systems, where the independent variable represents the quality of disclosure of accounting information in its dimensions: (disclosure of social and environmental responsibility, disclosure of internal control items and audit operations, disclosure of information future, and disclosure of financial information), and the dependent variable is financial performance and its determinants. The research community consisted of Iraq Stock Exchange companies, and the companies with the highest market value were selected and were represented by five companies: (Zain Iraq, Asia Cell, Bank of Baghdad, Baghdad Soft Drinks Company Pepsi Baghdad, National Bank of Iraq), where 350 questionnaires were distributed to A group of employees, experts, and investors collected data on the variables of the study. A random sampling equation was used to determine the sample size necessary to obtain accurate and reliable results. 345 questionnaires were retrieved, suitable for analysis. The descriptive analytical approach was adopted to achieve the objectives of the study. The most important of which is: a positive evaluation of the quality of accounting disclosure, with room for improvement. The positive evaluation indicates awareness among companies of the importance of transparency and accountability in enhancing trust between them and investors and shareholders. The positive evaluation also shows companies' efforts to apply international accounting standards and provide accurate and reliable financial information. The reason for this assessment is the adoption of international accounting standards and effective supervision by regulatory authorities. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/44 10.21533/pen.v12.i2.44 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 391-399 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/44/43 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/45 2025-01-04T22:26:06Z pen:ART driver

Effectiveness of internal control in green credit: Influential factors in Vietnam's commercial banking sector Nguyen, Tan Huu Nguyen, Binh Van Nguyen, Thuong Thu Luu, Duc Huu This study investigates the effectiveness of internal controls governing green credit operations in Vietnamese commercial banks.  We employ regression analysis to identify key factors influencing control effectiveness.  Six key areas emerge: Risk Management, Macroeconomic Factors, Monitoring Activities, Group Benefits, Work Motivation, and Information and Communication.  Independent sample T-tests and one-way ANOVA tests reveal significant variations in control effectiveness based on employee age groups and positions within the banks.  Further analysis categorizes these factors into strong and weak impact groups based on their Beta coefficients. Risk Management and Macroeconomic Factors emerge as strong influencers, highlighting the critical role of robust risk management practices and favorable economic conditions.  Conversely, Monitoring Activities, Group Benefits, Information and Communication, and Work Motivation have weaker but still notable impacts, suggesting areas for improvement in internal supervisory practices, communication systems, and employee motivation strategies.  The findings underscore the critical role of risk management and macroeconomic factors while highlighting opportunities for enhancing supervisory practices, internal communication, and employee motivation within Vietnamese commercial banks. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/45 10.21533/pen.v12.i2.45 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 400-416 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/45/44 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/46 2025-01-04T22:31:24Z pen:ART driver

A study on the influence of government, financial and incubation support on the success of startups in IT Cities of India Mishra, Shubham Bhargava, Jyoti Singh, Shalini Singh, Niharika Kumari, Roopam Amin, Ruhul This paper revolves around the concept of start-ups in IT Cities of India. Start-ups are mostly created based on creative and innovative ideas and grow to achieve success. Start-up companies are newly established companies which generally strive for existence due to some challenges. The basic purpose of this paper is to put some light on the factors influencing the success of startups in IT Cities of India. factors include Government support, Incubation support and financial support which is again sub divided into various sub factors having an influence on the success of startups in IT Cities of India. An attempt is made to review the literature and based on which primary data were collected from various Start-up Unit, start- up owner, CEO through questionnaire and the total of 309 respondents have been analyzed. Based on data collected all the three factors have been analyzed and proposed some suggestions and strategies. International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/46 10.21533/pen.v12.i2.46 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 417-428 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/46/45 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/47 2025-01-04T22:35:54Z pen:ART driver

Requirements management in software development companies in Colombia Claudia, Lengua-Cantero Laudyt, Lambraño Pérez María, García Medina Namuel, Solorzano Peralta David, Acosta Meza Software requirements management is vital in the system analysis stage, so the methods used in software development companies in Colombia were analyzed. The study aimed to explore the techniques used in the software development industry in Colombia for requirements management. It was carried out through a mixed approach of descriptive depth, interviewing five Chief Information Officers (CIOs) in Bogota, Medellin, and Sincelejo. Natural language processing techniques were used for the analysis, finding similarities among the interviewees in terms of software requirements and a positive perception towards requirements analysis; however, differences in requirements management were identified. Companies use hybrid methodologies to develop software projects, integrating principles of agile methodologies and methods such as Scrum and Kanban, while keeping traditional approaches as a base. This trend has an impact on requirements management since it allows greater flexibility and adaptability in the project development process.  International University of Sarajevo 2024-07-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/47 10.21533/pen.v12.i2.47 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 429-443 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/47/46 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/48 2025-01-04T22:40:01Z pen:ART driver

Social network data as a tool for engineering consumer behavior analysis Perevozova, Iryna Piasta, Andrii Dedelyuk, Oleksandr Babala, Andriy Chaikovskyi, Andrii Social networks can be used to carefully study how people act, focusing on how they can be used to understand and change people's decisions. A mixed-method approach is used for the study, which blends qualitative results from theories of customer behavior with quantitative analysis of Phoenix-area Yelp data. Many people visit the same place more often when they have friends who use sites like Yelp. It's 64% more likely for friends to go to the same place than for people who aren't friends. Studies of demographics show that females and younger people have lower levels of social power than older people and men. To deal with endogeneity and split the different groups of customers in the study, dyadic fixed effects models are used. These changes to the way studies are done help us get a better sense of how social impact works and make the results more reliable. What happened to marketing plans shows how important it is to focus on certain groups and share social ideas through high scores. There is also discussion about moral problems that come up with keeping data safe and being open. In general, this study helps us learn more about how to use social networks to study how people behave and shape modern marketing tactics. International University of Sarajevo 2024-08-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/48 10.21533/pen.v12.i2.48 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 444-456 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/48/47 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/49 2025-01-04T22:45:49Z pen:ART driver

Role of digital knowledge in employees’ capacity building in the Jordanian telecommunications companies Almarashdah, Manal Ali The main objective was to define whether the usage of the digital knowledge can be useful in employees’ capacity enhancement in the Jordanian telecommunications companies. The research study employed the descriptive analytical approach, and the study sample included the employees in Jordanian telecommunications companies, 250 in number. Thus, the researcher used a sample that was random and was given a hundred and sixty administrators. The research tool was an online survey, the respondents of which were contacted through e-mail and (114) questionnaires were returned for statistical processing. However, the researcher applied some statistics, which include the inflation coefficients test of variance, the skewness coefficients, and the one-way ANOVA analysis. More specifically, the independent variable which includes the tech knowledge was deemed of great importance ranging from (4.22- 4.33) with the mean of the three projects at (4.26). The second highest mean pertained to the variable of the “knowledge creation and acquisition” the scores of which were set at (4.33). The analysis also indicated that the dimensions of the dependent variable namely employees’ capacity obtained a high importance score of (4.20-4.22) with a mean score of (4.21) while the variable of sensing capacity received a mean score of (4.22) Taking the lowest score was the focusing capacity mean score of (4.20). The study also noted the acceptance of the main hypothesis and its three sub-hypotheses as indicated by the findings. The study therefore suggests the need to work on popularizing digital culture among the employees and training and developing their skills to meet the requirement of digital knowledge to enable them to manage its ever evolving nature without resorting to programmers since it is integral to the business. International University of Sarajevo 2024-09-19 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/49 10.21533/pen.v12.i2.49 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 457-472 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/49/48 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/50 2025-01-04T22:50:06Z pen:ART driver

Implementing lean six sigma in developing operational strategies for industrial companies in Jordan Al-Edwan, Hanan Al-Edwan, Mohamad The objective of this study was to assess the consequences of Lean Six Sigma implementation on the development of operational strategies in Jordanian industrial companies, as perceived by senior management and different divisions. To achieve these objectives, an analytical descriptive approach was used to gather data from 42 industrial companies listed on the Amman Stock Exchange. This approach was used to measure the impact of Lean Six Sigma implementation on the development of operational strategies in these companies, utilizing the appropriate measurement methods., with the distribution of (350) The researcher retrieved (320) questionnaire, and Found that there were (15) invalid questionnaire for the analysis of distributed Questionnaires, where the final number of questionnaires (305), To address the research questions and verify its hypotheses, We utilized suitable statistical tools with SPSS software. The study yielded several important results, the most notable being a significant statistical impact of Lean Six Sigma implementation on the development of operational strategies in industrial companies. The study suggested various initiatives, notably emphasizing the importance for senior management in Jordanian industrial companies to explore Six Sigma support for implementation, along with regular training sessions for staff on quality improvement methods. International University of Sarajevo 2024-09-19 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/50 10.21533/pen.v12.i2.50 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 473-490 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/50/49 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/51 2025-01-04T22:55:28Z pen:ART driver

The relevance and effectiveness of risk management systems to ensure the quality of education in the field of Soft Skills Vakulova, Iryna Steshyts, Iryna Nykyforov, Sergiy Kryvoruchko, Oksana Moroz, Volodymyr The purpose of this study is to systematically review the effectiveness of risk management systems for ensuring the quality of education in the field of Soft Skills. The study used the PRISMA methodological approach, which contributed to ensuring transparency in conducting systematic reviews. This system was used to search, select and analyze scientific papers. In the results it is shown that risk management systems (ERM, ISO 31000, COSO ERM Framework and PMBOK) have great potential to improve the quality of the educational process and the effectiveness of soft skills development in students. Besides, these systems provide a wide-ranging approach to risk management. They also integrate it into all components of the organization. All of them have individual advantages and opportunities for integration into the modern innovative learning space. The conclusions indicate that the process of implementing effective risk management in the education system is important for ensuring high quality education and successful development of students. The risk management system allows not only to minimize potential problems, but also to increase the efficiency of management and ensure the stable development of educational programs. International University of Sarajevo 2024-09-19 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/51 10.21533/pen.v12.i2.51 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 491-500 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/51/50 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/52 2025-01-04T23:06:01Z pen:ART driver

The role of entrepreneurial initiatives in the architecture of post-war infrastructure recovery in Ukraine Petrunenko, Iaroslav Ustymenko, Volodymyr Dzhabrailov, Ruslan Vozniakovska, Kristina Sieriebriak, Stanislav The ongoing conflict between Russia and Ukraine has destroyed much of the Ukrainian infrastructure. Post war period focuses on the restoration of the infrastructure as a hope to avoid the economic hardship for the public. The government’s dedication to reviving the economy and infrastructure requires the intervention of the public sphere through the neoliberal approach. This approach requires the services of entrepreneurs to achieve the desire goals. The competition factor and the inclusive strategy to take all the key stakeholders on board is the primary concern of the neo-liberal approach. This paper underpins the intricate play between entrepreneurial initiative and the restoration of the infrastructure though the regional cooperation. Despite the opportunities provided by the war for the drastic changes in business, the negative impact of the war is more concerned about the aftershocks of such a crucial destruction. This paper aims to investigate entrepreneurs' role in restoring the infrastructure in the war-ravaged areas of Ukraine. The qualitative method serves the purpose of investigating through the analytical approach. Entrepreneurial initiatives have contributed heavily to restoration through economic uplift, innovative steps, and domestic integration. It presents business as a resilient tool to bear the aftershocks of unwelcomed. Fostering the innovation and the international supports could reduce the burden on the government and promote the competition to achieve the desired results for reconstruction.  International University of Sarajevo 2024-09-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/52 10.21533/pen.v12.i2.52 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 501-508 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/52/51 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/53 2025-01-04T23:28:41Z pen:ART driver

Assessment of the quality of curricula and educational technologies in vocational education in Ukraine in accordance with modern labor market requirements Grynyov, Roman Vishnikina, Liubov Shukanov, Pavlo Dibrova, Ivan Fedіi, Oleksandr The objective of this study is to assess the quality of curricula and educational technologies in vocational education in Ukraine, with a particular emphasis on aligning them with the demands of the current labor market. The aim of the study is to identify the strengths and weaknesses of these curricula and provide recommendations for their improvement to increase the competitiveness of students in the labor market. The principal research methods utilized in this study were an analysis of the regulatory framework and content analysis of scientific publications. The results of the study show that the modern labor market significantly affects both the content of educational programs and the criteria for assessing the quality of educational technologies. The relevance of curricula to labor market needs is increasingly becoming a key criterion for the effectiveness of education. Additionally, international quality assessment approaches are being widely adopted. Consequently, the effectiveness of quality assessment in curricula and educational technologies is grounded in a combination of labor market analysis and international best practices in education quality evaluation. International University of Sarajevo 2024-09-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/53 10.21533/pen.v12.i2.53 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 509-518 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/53/52 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/54 2025-01-08T07:30:46Z pen:ART driver

Enhancing road construction management in Peru through virtual design and construction integration Zavala, Gerber Chacón, Michael Flores, Victor Andre Ariza This study examines the integration of Building Information Modeling (BIM) with Project Production Management (PPM) and Integrated Concurrent Engineering (ICE) under the Virtual Design and Construction (VDC) framework to address chronic inefficiencies in road infrastructure projects in Peru. Focusing on a 93 km road project in Puno, the research demonstrates that the combined VDC approach leads to significant improvements in project management. Key findings include a 25% reduction in project delays and a 15% decrease in overall project costs compared to traditional management methods. The implementation of VDC also resulted in a 90% reduction in design conflicts and a 95% improvement in the resolution of construction observations. Production metrics were established, showing that BIM scope fulfillment reached 100%, and key stakeholders' attendance at ICE sessions exceeded 85%, ensuring effective interdisciplinary coordination. The study highlights the critical role of coordinated BIM, PPM, and ICE processes in mitigating risks and enhancing project delivery in Peru. These results show that adopting the VDC framework can lead to substantial efficiency gains in future road infrastructure projects. Recommendations include the establishment of continuous training programs and the creation of robust digital infrastructures to support the widespread adoption of VDC in the Peruvian construction sector. International University of Sarajevo 2024-09-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/54 10.21533/pen.v12.i2.54 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 2 (2024); 519-540 2303-4521 10.21533/pen.v12.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/54/58 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/55 2025-01-04T23:49:28Z pen:ART driver

Practices for conducting value stream traceability in DevOps: A systematic literature mapping Daniel Botero Suescún, Elizabet Pardo, César J. DevOps is an approach that describes a set of practices and cultural values whose main objective is to integrate different teams within an organization at the development and operations level. This approach allows for improving the effectiveness of communication, collaboration, value delivery in software development, and organizational culture. Currently, organizations from different economic sectors find themselves in need of developing software and implementing DevOps practices to improve delivery frequency without sacrificing the quality and stability of the solution. Among the main issues when implementing DevOps is how to perform traceability of added value, henceforth, Value Stream. The Value Stream is presented as a sequence of activities responsible for producing and delivering value to customers and users through a product or service. Given its importance for organizations, this work addresses the most common challenges in organizations to perform Value Stream traceability, the proposals presented in the current literature for this process, and the unexplored research challenges found in the literature on the Value Stream. To do this, a systematic literature mapping is developed, resulting in the identification of various practices. From these, a set of challenges and practices that various organizations could implement to perform DevOps process traceability with a focus on the Value Stream are consolidated and presented. International University of Sarajevo 2024-10-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/55 10.21533/pen.v12.i3.55 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 3 (2024); 541-564 2303-4521 10.21533/pen.v12.i3 eng https://pen.ius.edu.ba/index.php/pen/article/view/55/53 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/56 2025-01-04T23:55:02Z pen:ART driver

How art can save poor rural landscape - A case study of Chongqing Jangjun Village Bai, Jie Mohammad, Noraziah Binti Johar, Suhana Binti Since the 21st century, with the rapid development of China's economy, rural development has become an important issue to be addressed by the Chinese government, and art, as a unique cultural resource, is considered to have the potential to promote rural revitalization and sustainable development. This study will reveal the specific patterns and effects of art-enabled rural landscape revitalization in Jiangjun Village, Chongqing through interviews and observations in a case study of the village. The study draws the following conclusions: Firstly, artistic empowerment has brought vitality to Jiangjun Village, creating a rural landscape with an artistic and cultural atmosphere that attracts more tourists and resources. Secondly, artistic empowerment stimulates the development of rural tourism and improves the quality of life of villagers, thus promoting rural revitalization and sustainable development. This study provides valuable development strategies for the revitalization and development of art-enabled rural landscapes, as well as new ideas and practices to learn from for China's rural revitalization and sustainable development in other regions and the world. International University of Sarajevo 2024-10-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/56 10.21533/pen.v12.i3.56 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 3 (2024); 564-576 2303-4521 10.21533/pen.v12.i3 eng https://pen.ius.edu.ba/index.php/pen/article/view/56/54 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/57 2025-01-05T00:56:21Z pen:ART driver

Automated detection of gait events using inertial sensor signals and a discrete wavelet transform approach Navarro, Humberto J. Detection of gait cycle events is a crucial step toward an effective evaluation and rehabilitation of pathologies or injuries in human locomotion. Recently, methods based on the Discrete Wavelet Transform (DWT) have been useful for this detection due to their robustness and the wide variety of options for analyzing and decomposing signals in time/frequency domains, as well as their ability to extract relevant features embedded in the signals. In this study, a detection method of main gait cycle events, using the Wavelet Symlets and Daubechies families, was developed. These events are the heel-strike (HS) and the toe–off (TO). Inertial signals were acquired by three different devices: a G–WALK (reference equipment), an Apple Watch (AW), and a noncommercial device based on Inertial Measurement Units (IMUs). The dataset was obtained from six–minute walking tests performed by 22 healthy subjects. First, the dataset was processed, and then the signals were synchronized regarding the reference system. Subsequently, the signals were decomposed into 6 levels using sym4 and db5 Wavelets to obtain multiple perspectives of the signals. Then, using automatic threshold techniques and symmetric windows, it was possible to detect HS and TO events. Finally, the IMUs–based system obtained a 94.398 % of recall, 100 % of precision, and 97.117 % of F_1–score, with absolute values delays in the detection between 10–20 ms. In contrast, the AW system performance was 90.168 %, 100 %, and 94.828 % for recall, precision, and F_1–score, respectively, with absolute values delays in the detection of 10–28 ms. International University of Sarajevo 2024-12-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/57 10.21533/pen.v12.i3.57 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 3 (2024); 577-594 2303-4521 10.21533/pen.v12.i3 eng https://pen.ius.edu.ba/index.php/pen/article/view/57/55 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/59 2025-01-05T01:16:24Z pen:ART driver

Simulation of the energy model of a rural house located in a cold climate using an in-situ monitoring system Ascanio-Villabona, Javier Castillo-Leon, N. Y. Osorio, Nicolas Orejarena Tarazona-Romero, Brayan Eduardo Jaimes-Quintero, K. T. The energy simulation of buildings is presented as a tool to analyze the comfort, consumption and energy efficiency of buildings, however, the discrepancy between simulated models and real data has been a constant, for this reason, energy model calibrations are performed to increase the reliability of the predictions of the simulation. This research carried out the simulation and calibration of the energy model of a rural house, located in a cold climate at more than 3000 meters above sea level, the study was developed in three phases, starting with the monitoring of climatological variables, followed by the energy modeling and finally, the calibration of the model is achieved by applying the iterative and scatter plot methods, allowing the selection of a model where a sequence of linear data was observed, with a strong relationship of more than 80% accuracy between the monitored data and the simulated energy model. International University of Sarajevo 2024-12-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/59 10.21533/pen.v12.i3.59 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 3 (2024); 595-603 2303-4521 10.21533/pen.v12.i3 eng https://pen.ius.edu.ba/index.php/pen/article/view/59/56 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/60 2025-01-06T16:57:06Z pen:ART driver

Extubating of a patient undergoing mechanical ventilation: What is the right time? A retrospective study assisted by artificial intelligence techniques Pererira, C. J. Arismendi Sandoval-Rodríguez, C. L. Giraldo, B. F. Solano, E. H. In the presence of acute respiratory failure, mechanical ventilation emerges as a temporary alternative to maintain adequate gas exchange in the body such as that which occurs in natural respiration. This technique is widely used in intensive care units. Our objective was to carry out an analysis and interpretation of cardiorespiratory signals in patients assisted by mechanical ventilation, using non-linear analysis techniques of dynamic systems, data mining and machine learning techniques to establish indices that allow determining the appropriate moment of disconnection. in patients during the weaning process. We use three categories: Failure, success and reintubated. We introduced a new variant of Moving Window with Variance Analysis, with which good results are obtained. We have found that by using all the time series available in the database, we have obtained an accuracy of 96% when using simple symbolic dynamics to differentiate between successful weaning and reintubated cases. and 86% when comparing success and failure, which contrasts with the results observed in the state of the art. International University of Sarajevo 2024-12-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/60 10.21533/pen.v12.i3.60 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 3 (2024); 604-615 2303-4521 10.21533/pen.v12.i3 eng https://pen.ius.edu.ba/index.php/pen/article/view/60/57 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/62 2025-02-24T17:00:30Z pen:ART driver

The impact of cognitive behavioral therapy (CBT) on compatibility dimensions, academic achievement, and smoking cessation Alhabeis, Feras Ali Al-Natsheh, Numan Alkhawaldeh, Omar Abdallah Issa Al-Awamrah, Abdelsalam Fahad Baniyounes, Mohammad Mahmoud Aljaloudi, Diya Ahmad Alwani, Wafa Ali Mahmoud This study examines the efficacy of Cognitive Behavioural Therapy (CBT) in enhancing compatibility dimensions (personal and emotional, health and physical, family, and social), reducing smoking behaviour, and its indirect impact on academic achievement among university students. Employing a longitudinal, quasi-experimental design, the research engaged 39 students at Al-Isra University who underwent CBT sessions, with assessments conducted at four intervals: pre-treatment, immediately post-treatment, and at one- and three-month follow-ups. Findings reveal that CBT significantly improved compatibility dimensions across all categories, affirming its potential to ameliorate personal and emotional well-being, physical health, and social and family dynamics. Concurrently, a marked reduction in smoking behaviour was observed, highlighting CBT's efficacy in smoking cessation. Contrary to expectations, enhancements in compatibility dimensions did not translate into measurable changes in academic achievement within the study's timeframe, suggesting the complexity of factors influencing academic performance. These outcomes underscore the multifaceted benefits of CBT in fostering well-being among university students and advocate for the integration of holistic psychological interventions within student support services. However, the lack of a direct correlation between compatibility improvements and academic success calls for a broader approach to enhancing student performance, encompassing academic and institutional support mechanisms alongside psychological interventions. This research contributes to the understanding of CBT's broad-spectrum benefits, emphasizing the need for comprehensive support strategies that address the psychological, social, and academic dimensions of student life. Future studies are encouraged to explore the long-term effects of CBT on academic outcomes and to examine the interplay of contextual and institutional factors in students' academic success. International University of Sarajevo 2024-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/62 10.21533/pen.v12.i4.62 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 4 (2024); 616-626 2303-4521 10.21533/pen.v12.i4 eng https://pen.ius.edu.ba/index.php/pen/article/view/62/59 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/64 2025-02-24T16:59:54Z pen:ART driver

Virtual laboratories as a means of increasing accessibility of biological education in Ukraine Sipii, Volodymyr Kurtiak, Fedir Mykhaliuk, Ilona Hryhorchuk, Inna Zasiekina, Tetiana Research objective. The objective of the study was to investigate the impact of virtual laboratories on students' research skills while studying biology in a university environment. Applied research method. The research method used in the study was a research experiment in a virtual laboratory, the method of testing (EETS), and the method of expert evaluation. The statistical analysis was carried out using the Mann-Whitney criterion, Pearson's coefficient, and correlation analysis. The reliability of the method was tested by Cronbach's alpha. Main results. There is a positive correlation between the use of scientific methods and the ability to conduct experiments, as well as the attitude to the learning environment in both the experimental and control groups. The Pearson correlation coefficients were higher for the experimental group; this clearly indicates a stronger connection between their research skills and attitudes toward the learning environment. The ability to process results also has a small positive relationship with attitudes toward the learning environment. Major conclusions. The results of the study demonstrated the positive impact of using virtual laboratories in the study of biological disciplines. International University of Sarajevo 2024-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/64 10.21533/pen.v12.i4.64 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 4 (2024); 627-636 2303-4521 10.21533/pen.v12.i4 eng https://pen.ius.edu.ba/index.php/pen/article/view/64/60 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/65 2025-02-24T16:59:54Z pen:ART driver

Optimal strategies for attracting private investment in energy efficiency projects at the household level Prokopenko, Olha Kovalenko, Yevhen Lytvynenko, Svitlana Kovshun, Nataliia Kravtsev, Oleksii In order to create a thriving clean energy industry, it is necessary to increase the number of households involved in energy efficiency. In addition, favorable conditions should be created to attract investment in innovation to create new energy-saving technologies. This also means expanding the use of existing environmentally friendly energy solutions, such as solar or wind energy development, which is particularly relevant for Ukraine, given the extensive damage to energy infrastructure caused by the fighting. When the cost-effectiveness of measures and guarantees of return on investment are insufficient for private investors or when measures that only indirectly contribute to energy efficiency are involved, financial support from the state is required, which should also be considered when developing approaches to ensuring the establishment of an effective system for investing in energy efficiency projects. Given the relevance of the topic under study, its goal is to identify the best ways to attract private investment in energy efficiency projects at the household level. To achieve this goal, the following tasks should be solved: to conduct a statistical analysis of the energy sector in Ukraine, to identify opportunities for financing energy efficiency projects in the residential sector, and to formulate recommendations for attracting resources to implement energy efficiency projects by households. The methodological basis of the study is statistical analysis and general scientific research methods. The study proves that co-financing, already being implemented in Ukraine under specific projects described in the paper, can become one of the main directions for developing energy efficiency projects. The strategies for supporting investment projects and raising funds to finance energy efficiency projects are also detailed and systematized. Possibilities of co-financing from various sources for projects in the main areas of energy saving are described in detail, which may be helpful primarily for households focused on implementing energy efficiency projects, either in terms of renewable energy production or improving the energy efficiency class of premises. International University of Sarajevo 2024-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/65 10.21533/pen.v12.i4.65 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 4 (2024); 637-650 2303-4521 10.21533/pen.v12.i4 eng https://pen.ius.edu.ba/index.php/pen/article/view/65/61 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/67 2025-01-12T23:19:17Z pen:ART

oai:ojs2.pen.ius.edu.ba:article/69 2025-02-24T16:59:54Z pen:ART driver

Mobile technologies as a tool to support inclusive learning in higher education institutions Nechyporenko, Valentyna Nikolenko, Liudmyla Nichuhovska, Lilia Omelchenko, Maryna Bondarenko, Zoia The use of digital technologies in modern educational environments is an urgent requirement. This article aims to study mobile technologies as an effective mechanism for supporting and developing inclusive learning in higher education institutions. To achieve this goal, the article employs methods of scientific content analysis of literature and comparison, which allow for identifying the positive aspects of integrating mobile technologies into inclusive education and the difficulties that exist on this path. The study results indicate a need to utilize both traditional and specialized technologies in the modern higher education landscape. The analysis reveals that traditional technologies supporting inclusion primarily include applications for organizing learning, mobile communication technologies, and applications for creating specialized learning content, including multimedia and virtual technologies for individuals with special educational needs. Among the specialized tools for supporting inclusive learning are apps that enhance vision and hearing. This category also includes mobile applications that support lectures through various subtitle options. The study found that such mobile technologies improve knowledge acquisition and enhance the efficiency of the learning process. It concludes that these applications contribute to greater student integration, reduce social isolation, develop social skills, and increase self-confidence. International University of Sarajevo 2024-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/69 10.21533/pen.v12.i4.69 Periodicals of Engineering and Natural Sciences; Vol. 12 No. 4 (2024); 651-660 2303-4521 10.21533/pen.v12.i4 eng https://pen.ius.edu.ba/index.php/pen/article/view/69/62 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/71 2025-04-04T13:36:22Z pen:ART driver

oai:ojs2.pen.ius.edu.ba:article/73 2025-05-20T09:42:29Z pen:ART driver

Adapting hybrid approaches for electronic medical record management and sharing using blockchain sharding Abbas, Abdulmajeed Hamid, Md. Abdul In the past few years, it is noticed that management and sharing medical records is a key step towards increasing healthcare provider connectivity and making the healthcare system more efficient. The scalability and sustainability issues confer to mismanagement of patient is record and also raised several issues in privacy and security. The study aims to suggest more efficient alternatives for Electronic Healthcare System. Scalability and privacy are the major limitations that existing systems contain so the goal of this study is to define alternatives about how parameters like scalability, usability and data protection could be achieved in an efficient manner for healthcare system. In the healthcare industry, providing accurate, thorough, and up-to-date information on patients is critical. Another feature that allows researchers to consider efficient EHR systems is rapid access to patient records for boosting efficiency and coordination. Blockchain sharding technique is utilized along with hyper-ledger protocols and Proof-of-Authority to carry out our model implementation. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/73 10.21533/pen.v11.i1.73 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 5-14 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/73/64 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/74 2025-01-21T18:08:31Z pen:ART driver

Investigation of concrete properties using recycled waste concrete aggregate Mohammed, Suha Naimi, Sepanta There are several environmental, economic, and energy reasons why RC is gaining popularity around the world. Key environmental problems include the potential for groundwater contamination due to the washing out of fresh concrete brought back from project sites, as well as the loss of natural sources of high-quality aggregate materials. The RC concrete (RCA) impact on the fundamental characteristics of traditional con-crete is investigated besides the effect of different ratio effects of water-cement (w/c). The concrete as crushed rubble obtained from several Iraqi demolition sites and landfills is utilized to examine the properties of (RCA). This work utilized sand as natural, and concrete as crushed from various sources as aggregates around Baghdad city. A total of forty-five concrete mixtures were cast into nine groups. Groups were created to examine the impact of recycled coarse aggregate (CA) quality/content, dosage of cement, and w/c ratio. Strengths of compressing and splitting, and modulus of elastic tests were conducted. The findings demon-strated that the concrete rubble (CR) may be turned into recycled aggregate (RC) and utilized in the concrete manufacturing with qualities adequate for the vast majority of structural concrete applications in Iraq. Fur-thermore, the concrete strength has decreased by 6% to 30%, depending on the proportion of RC utilized to replace natural aggregate and the w/c ratio. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/74 10.21533/pen.v11.i1.74 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 15-29 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/74/65 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/75 2025-01-28T14:47:16Z pen:ART driver

Evaluation of the incidence of optical and physical characteristics on the performance of a Fresnel Linear Collector prototype Tarazona-Romero, et. al., B. E. This article aims to evaluate the optical and thermal behavior of a small Fresnel linear concentrator prototype developed under the appropriate technology paradigm. The system was developed by the Energy, Automation and Control Systems Research Group of the Technological Units of Santander, Colombia for water heating. The study of the device was developed from a series of simulations that took into account the optical and thermal factors of the real system, and a series of alternative scenarios that seek to improve the performance of the device were evaluated. The simulation process was carried out by applying the "TRNSYS" Software in order to study the dynamic behavior of the concentrator and the "Soltrace" Software applying the Monte Carlo Ray Tracing method. The results obtained showed that the improvement scenarios proposed to evaluate the optical characteristics of the primary reflection system do not significantly increase the performance of the device, while the optical characteristics applied to the secondary reflection system do reflect a significant in-crease. Finally, the variation of flow and the area of the preheater show a direct relationship in performance, reaching values that predict the ideal value of the operating variable. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/75 10.21533/pen.v11.i1.75 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 30-40 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/75/66 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/76 2025-01-28T14:48:18Z pen:ART driver

Quantum fuzzy genetic algorithm with Turing to solve DE Hamid, et. al., Ahmed In this study, we create the quantum fuzzy Turing machine (QFTM) approach for solving fuzzy differen-tial equations under Seikkala differentiability by combining it with a differential equation and a genetic algorithm. A theoretical model of computation called a quantum fuzzy Turing machine (QFTM) incor-porates aspects of fuzzy logic and quantum physics. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/76 10.21533/pen.v11.i1.76 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 41-47 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/76/67 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/77 2025-01-28T14:49:00Z pen:ART driver

Monthly drought monitoring of the surface water area of Sawa Lake, Iraq during 2016-2022 using remote sensing data Alshammari, et. al., Lubna Drought is a common phenomenon in Iraq's environment, and the country has experienced severe drought events exacerbated by the threat of climate change (low rainfall and high temperatures) over the past two decades. Iraq is located in a semi-arid region whose water resources have been restricted and mostly shared with its neighbours. To investigate the effect of drought on the surface water area of Sawa lake, we analysed 52 Sentinel-2 images from May 2016 to July 2022 using an open-source SNAP toolbox to map the boundary of the surface-water body of the lake. The results indicate that the surface water area of Sawa lake has de-creased significantly over the last six years with the most extreme decline beginning in May 2021, when the area of the lake lost about 51% of its initial size (May 2016). By March 2022, the lake had disappeared and about 96% of the water's surface area had been lost. To better understand the potential causes of droughts, further analysis has been conducted on the effects of precipitation and human activities (vegetation cover and Al-Samawah saltpan for salt production) on the lake. Investigations revealed that the rapid expansion of agricultural areas around the lake by 254% and the increase in salt production from the Al-Samawah saltpan by about 121% are among the direct causes of the drought. In addition, the results of the statistical test anal-ysis between the estimated surface water area of Sawa lake and human activities were significant at a 95% level of confidence. The findings of this study can assist decision-makers to understand the interaction be-tween human activities and the lake's environment to design a strategic plan for lake recovery and a sustain-able water resource management system in southern Iraq. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/77 10.21533/pen.v11.i1.77 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 48-63 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/77/68 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/78 2025-01-28T14:49:38Z pen:ART driver

Relationship between force signal and superficial electromyographic signals associated to hand movements Sandoval-Rodriguez, et. al., C. L. The analysis of electromyographic signals is applied both to the diagnosis of pathologies and to the recogni-tion of movement patterns. Variables such as force and speed of movement are factors that affect the charac-teristics of the signals of surface electromyography (SMEG). The naturalness of the movements of the hand are also associated with strength and speed. Current work assessment 96 records of SEMG -Force). The objective was to obtain a linear model that would allow the relation of the force signal with the tone of the forearm SEMG signals. The work results show models at the determination coefficient R2 - median 0.78. The SEMG signal would contribute to the variation of the strength signal. However, there are appreciable differences in relation to the model in each type of hand movement. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/78 10.21533/pen.v11.i1.78 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 64-73 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/78/69 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/79 2025-01-28T14:50:21Z pen:ART driver

Technical-economic evaluation of a portable solar machine of potential use in pumping systems and water purification, through the use of photovoltaic solar technology for non-interconnected areas in Colombia Calderón, et. al., Diego Armando Cartagena The purpose of this article is to present the dimensioning of a portable, autonomous solar machine, of potential utility in pumping systems and water purification, through the use of photovoltaic solar technology and inno-vation to an unsatisfied basic need, such as service drinking water, in areas of the country, where there are inconveniences for access to drinking water and electricity service. The solar machine is innovative, modular, portable, easy to transport and install, sustainable and environmentally friendly, with zero greenhouse gas emissions as it is powered by photovoltaic technology. The solar machine is innovative, modular, portable, easy to transport and install, sustainable and environmentally friendly, with zero greenhouse gas emissions as it is powered by photovoltaic technology and does not use batteries. This portable solar machine substantially reduces the cost of investment, operation and maintenance, by using photovoltaic solar panels and working with direct current, eliminating the use of the conventional electrical power network, inverters, for its opera-tion and can be dimensioned for water. surface water from rivers or reservoirs to the reservoir or pond, the same as for groundwater from wells, for the supply of drinking water, through the improvement, disinfection and sterilization of drinking water, to improve the quality of life of rural communities and secondly measure for use in the agricultural sector, for irrigation, domestic use, livestock (livestock pasture) and other services, for the rural development of the regions in Colombia. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/79 10.21533/pen.v11.i1.79 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 74-90 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/79/70 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/80 2025-01-28T14:52:16Z pen:ART driver

Artificial extension for a canine with partial forelimb amputation Garrido - Silva, et. al., G. When a canine presents a serious case of disease, injury or necrosis, it is imperative to perform an amputation procedure, whatever the affected limb is, since it can minimize the risk of developing pathologies related to tissues, joints and spine, associated with an altered gait and/or unequal distribution of forces in their limbs. Thus, improvement alternatives arise such as prostheses which help to improve the quality of life of canines. The article proposes the development of a functional prototype of prosthesis for canines with partial forelimb amputation through the design and 3D modeling of the prosthesis, together with the selection of the material that adapts to the morphological conditions of the canine. Also, a cushioning system is incorporated to minimize the force of the impact with the ground when performing activities such as jumping, running or walking. Finally, the electronic component is included in the design and the respective electronic and biomechanical tests are carried out to verify its correct operation. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/80 10.21533/pen.v11.i1.80 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 91-102 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/80/71 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/81 2025-01-28T14:53:08Z pen:ART driver

Analysis of a piezoelectric energy harvester system from footsteps of passersby Sandoval- Rodríguez, et. al., C. L. Piezoelectric materials can be used in applications designed to handle a wide range of input frequencies and forces to enable energy harvesting. Although several studies have been carried out on piezoelectric energy harvesting systems, this application is still under development. The purpose of this work is to analyze the behavior and the ability to generate electrical energy through the elements in piezoelectric tiles or platforms, specifically, piezoelectric disc elements with a diameter of 27 mm. To do this, a platform of about 130 x 75 cm was designed to capture the footsteps of people and transmit the impact force to sensors to determine the power generation capacity of the piezoelectric elements. Tests were carried out with people weighing between 75 kg and 85 kg and the measurements obtained made possible to identify the behavior of the system and to develop a mathematical model to estimate the energy generated through the platform.The piezoelectric elements used here proved to be fragile despite the different types of shock absorbers used to avoid their rupture. Therefore, it is recommended to delve into the design of protection mecha-nisms to extend the life of piezoelectric elements in energy collection systems. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/81 10.21533/pen.v11.i1.81 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 103-111 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/81/72 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/82 2025-01-28T14:54:00Z pen:ART driver

Identification of energetically critical processes for cocoa production in Santander, Colombia Sandoval-Rodriguez, et. al., Camilo Leonardo The intensification of industrial activities in post-harvest cocoa processes has generated a disproportionate increase in energy consumption. The objective of this work is to describe those energetically critical ones that are used in the cocoa production line in Santander so that further research can evaluate the implementa-tion of alternative or renewable energy systems. Through the collection of information and data manage-ment, it is seeking to promote the efficient use of energy based on the NTC ISO 500001. For this end, a description of the processes involved in the production of cocoa was made considering the technical data. Then, the energy consumed by the equipment used in the different processes was determined for 30 days, operating 24 hours a day, assuming power factors of 0.75 and 0.9. Finally, through analysis, calculations, and the application of the Pareto methodology, it was possible to identify that the process with the highest energy consumption is the cocoa refining step, since the equipment used in this process consumes more than 30% of energy from the total energy used for cocoa production. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/82 10.21533/pen.v11.i1.82 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 112-120 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/82/73 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/83 2025-01-28T14:54:37Z pen:ART driver

Development of an expert system based on fuzzy logic as support for heat pipes design Betancur-Arboleda, et. al., Luis Heat pipe design and selection require specialist knowledge due to numerous possible combinations and restrictions that should be taken into account. The general objective of this work is to design a Specialist System that assists future engineers in material and working fluid selection for a suitable heat pipe applica-tion, based on the technical operating requirements. The methodology consisted of a qualitative perspective through interviews with two specialist engineers in the heat pipes area. The resulting information from the interviews was organized into a library, working as a source for the specialist system. In addition, several books from the literature completed the information in the library. Based on the operating conditions and the provided library, the program recommends suitable materials and working fluids and the necessity of porous media for the application, similar to a consult with a heat pipe specialist. The new expert system can be a tool for researchers and engineers in heat pipe design as passive control systems, providing more suitable solutions for each application. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/83 10.21533/pen.v11.i1.83 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 121-133 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/83/74 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/84 2025-01-21T18:08:30Z pen:ART driver

Studying the effect of concentration on spectral and optical properties of chitosan polymer Abdulrazzaq, Shaymaa Jabbar  Due to its noteworthy physico-chemical behaviors, the chitosan (CS) biopolymer presents a compelling alter-native to conventional biomaterials. By measuring the emission spectra at a spectrofluorophotometer in differ-ent concentrates (1x10-4, 1x10-5, and 1x10-6) M, the spectral characteristics of the CS polymer were obtained. The crystallinity of the CS polymer was determined by X-ray diffraction (XRD) analysis, which shows only one dominant peak indexed to the orthorhombic structure. With a drop in solution concentration, there was a shift toward the shorter wavelength and a decline in quantum yield. Using a UV-Vis spectrophotometer, the optical properties of the CS polymer, including its refractive index, absorption coefficient, energy band gap, extinction coefficient, and dielectric constant, have been studied.  It was observed through the results that the optical parameters are linearly dependent with concentration. In contrast to the optical energy gap, which de-creases with increasing concentration.   International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/84 10.21533/pen.v11.i1.84 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 134-143 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/84/75 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/85 2025-01-28T14:55:37Z pen:ART driver

Developing a water quality model using fuzzy approach for the Al-Gharraf River in Southern Iraq Al Jawei, et. al., Abbas Y. The present study develops a water quality model based on fuzzy approach to assessment of the surface water quality in Al-Gharraf River located in the South of Iraq. The water quality parameters, including Total Dissolved Solids (TDS), Biological Oxygen Demand (BOD), Chloride (CL), Sulphate (SO4), Nitrate (NO3), and Phosphate (PO4), were selected as input parameters to fuzzy water quality model (FWQ). To evaluate the performance of the proposed model (FWQ) of Al-Gharraf River in the period of the study, the produces of our model were compared with those of the water quality index (WQI) and Canadian Water Quality Index (CWQI). They showed similar results and were sensitive to changes in the level of water quality parameters. However, the model proposed in the present study produced a more stringent produces compared to the WQI and CWQI. Results from the simulation indicate that the sensitivity analysis of the suggested approach will be improved by almost (17%, and 24%) more than that achieved by the processes WQI and CWQI, respectively. In conclusion, the proposed index seems to produce accurate and reliable results and can be used as a comprehensive tool for water quality assessment. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/85 10.21533/pen.v11.i1.85 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 144-145 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/85/76 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/86 2025-01-21T18:08:30Z pen:ART driver

Employing auxiliary natural lighting systems within the elements of traditional buildings: A special study on employing one of the auxiliary lighting techniques within one of the elements of a mosque in the ancient urban fabric Ubaid, Alaa Hadi Technological development is considered one of the most important influences that contributed to the change of some design elements (formal and functional), both or each. Among these elements is the mina-ret. This was evident in the old urban fabric, and because of the existence of other basic reasons in the tradi-tional fabric, including the increase in the population of the weaving area, which led to the dispensation of the inner courtyard. It had changed from an element that has a shape and function to an element that has a shape only, to indicate the presence of a mosque this was evident in the old urban fabric .Due to the pres-ence  of other essential causes in the traditional fabric like the increase in population among the inhabitants of the fabric which led to  neglecting  the internal area , moreover climate change led to the use of window openings as outlets for air conditioning instruments ,the researcher employed the minaret to enable sunlight  inter the inner space of the mosque (prayer space) due to the importance of natural sunlight effect on peo-ple's psychological and physiological  health . This research was conducted in a clear sky of Babil province for latitude of (32.8) north, small samples were made measuring 1:20 for the minaret and the mosque space, a device for measuring the sunlight amount  (Multi-Function Environment Meter 4IN1) was used . Results showed an increase in natural sunlight reflected inside the space of the mosque. This study came out with the following recommendations, the importance of employing the archeological elements which their func-tions were altered by technological growth to enhance the internal environment with the finding of solutions to the amount of harmony in distributing sunlight (distributing natural sunlight harmoniously )                                                                                      International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/86 10.21533/pen.v11.i1.86 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 156-173 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/86/77 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/87 2025-01-28T14:56:25Z pen:ART driver

A comparison between the hierarchical clustering methods for postgraduate students in Iraqi universities for the year 2019-2020 using the cophenetic and delta correlation coefficients Essa, et. al., Ameena Kareem The educational sector is one of the important sectors in the world, and it is considered one of the means of community development. In addition, it is one of the means of making the country’s renaissance and devel-opment because it represents the factory of thinking minds that make change. There is no doubt that this sector is the same as any other sector. The deficit in the studied scientific planning has been prolonged, which led to its deterioration, and the problems of education remain diverse and inherited from previous time periods, where the hierarchical cluster analysis was used on postgraduate students in universities in Iraq, except for Kurdistan region, and the number of universities that were included in the study was (30) universities. In the whole of Iraq for the year 2020, when using the comparison measures the Cophenetic Correlation Coefficient (CCC) and the Coefficient Delta (DC), it was found that the Complete Linkage Method is the best among the hierarchical methods, as the value of (CCC) is 0.952061, and the value of (DC(0.1)) it is 0.288973, and in the case (DC(0.5)) it is 0.26877, then followed by Median method, Ward's method and finally Single Linage Method.   International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/87 10.21533/pen.v11.i1.87 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 174-185 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/87/78 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/88 2025-01-28T14:57:05Z pen:ART driver

Bitcoin prediction with a hybrid model Ashou, et. al., Marwan Abdul Hameed In recent years, Bitcoin has become the most widely used blockchain platform in business and finance. The goal of this work is to find a viable prediction model that incorporates and perhaps improves on a combina-tion of available models. Among the techniques utilized in this paper are exponential smoothing, ARIMA, artificial neural networks (ANNs) models, and prediction combination models. The study's most obvious discovery is that artificial intelligence models improve the results of compound prediction models. The sec-ond key discovery was that a strong combination forecasting model that responds to the multiple fluctua-tions that occur in the bitcoin time series and Error improvement should be used.  Based on the results, the prediction accuracy criterion and matching curve-fitting in this work demonstrated that if the residuals of the revised model are white noise, the forecasts are unbiased. Future work investigating robust hybrid model forecasting using fuzzy neural networks would be very interesting. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/88 10.21533/pen.v11.i1.88 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 186-196 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/88/79 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/89 2025-01-28T14:57:35Z pen:ART driver

Development prediction algorithm of vehicle travel time based traffic data Saleh, et. al., Muna Hadi This work is based on encouraging a generous and conceivable estimation for modified an algorithm for vehicle travel times on a highway from the eliminated traffic information using set aside camera image groupings. The strategy for the assessment of vehicle travel times relies upon the distinctive verification of traffic state. The vehicle velocities are gotten from acknowledged vehicle positions in two persistent images by working out the distance covered all through elapsed past time doing mollification between the removed traffic flow data and cultivating a plan to unequivocally predict vehicle travel times. Erbil road data base is used to recognize road locales around road segments which are projected into the commended camera imag-es and later distinguished vehicles are assigned to the looking at route segment so instantaneous and current velocities are calculated. All data were effectively processed and visualized using both MATLAB and Py-thon programming language and its libraries. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/89 10.21533/pen.v11.i1.89 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 197-207 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/89/80 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/90 2025-01-28T14:58:10Z pen:ART driver

EEG-based image classification using an efficient geometric deep network based on functional connectivity Hasan, et. al., Haitham S. To ensure that the FC-GDN is properly calibrated for the EEG-ImageNet dataset, we subject it to extensive training and gather all of the relevant weights for its parameters. Making use of the FC-GDN pseudo-code. The dataset is split into a "train" and "test" section in Kfold cross-validation. Ten-fold recommends using ten folds, with one fold being selected as the test split at each iteration. This divides the dataset into 90% training data and 10% test data. In order to train all 10 folds without overfitting, it is necessary to apply this procedure repeatedly throughout the whole dataset. Each training fold is arrived at after several iterations. After training all ten folds, results are analyzed. For each iteration, the FC-GDN weights are optimized by the SGD and ADAM optimizers. The ideal network design parameters are based on the convergence of the trains and the precision of the tests. This study offers a novel geometric deep learning-based network architecture for classifying visual stimulation categories using electroencephalogram (EEG) data from human participants while they watched various sorts of images. The primary goals of this study are to (1) eliminate feature extraction from GDL-based approaches and (2) extract brain states via functional connectivity. Tests with the EEG-ImageNet database validate the suggested method's efficacy. FC-GDN is more efficient than other cutting-edge approaches for boosting classification accuracy, requiring fewer iterations. In computational neuroscience, neural decoding addresses the problem of mind-reading. Because of its simplicity of use and temporal precision, Electroencephalographys (EEG) are commonly employed to monitor brain activity. Deep neural networks provide a variety of ways to detecting brain activity. Using a Function Connectivity (FC) - Geometric Deep Network (GDN) and EEG channel functional connectivity, this work directly recovers hidden states from high-resolution temporal data.  The time samples taken from each channel are utilized to represent graph signals on a topological connection network based on EEG channel functional connectivity. A novel graph neural network architecture evaluates users' visual perception state utilizing extracted EEG patterns associated to various picture categories using graphically rendered EEG recordings as training data. The efficient graph representation of EEG signals serves as the foundation for this design. Proposal for an FC-GDN EEG-ImageNet test. Each category has a maximum of 50 samples. Nine separate EEG recorders were used to obtain these images. The FC-GDN approach yields 99.4% accuracy, which is 0.1% higher than the most sophisticated method presently available International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/90 10.21533/pen.v11.i1.90 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 208-215 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/90/81 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/91 2025-01-28T14:58:48Z pen:ART driver

Modeling the trend of Iraqi GDP for 1970-2020 Gatea, et. al., Ahlam Hanash The study of economic growth indicators is of fundamental importance in estimating the effectiveness of economic development plans, as well as the great role it plays in determining appropriate economic policies in order to optimally use the factors that lead to the dynamics of growth in Iraq, especially during a certain period of time. The gross domestic product (GDP) at current prices), which is considered a part of the national accounts, which is considered as an integrated dynamic of statistics that produces in front of policy makers the possibility of determining whether the economy is witnessing a state of expansion or evaluating economic activity and its efficiency in order to reach the size of the overall economy.The research aims to determine the best and most efficient statistical model to be used in forecasting the GDP in Iraq based on time series data for the period from (1970-2020) years. Where the general trend models (Linear trend, Quadratic trend and Exponential Trend) were applied, and the three models were compared to choose the best model using some statistical criteria, including the Akiaki Information Standard (AIC) and Schwartz Standard (SBS). The results showed that the appropriate model is the Quadratic trend model, were predicting and forecasting values are close to the real values of the GDP series. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/91 10.21533/pen.v11.i1.91 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 216-222 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/91/82 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/92 2025-01-28T14:59:19Z pen:ART driver

Structural behavior of reinforced concrete pre-stressed tapered beams Jasim, et. al., Mohammed Dhaher This research is focused on studying the flexural behavior of reinforced concrete prestressed (post-tensioned) tapered beams. The present study investigates the impact of compressive strength, prestressed reinforcement, and tapering ratio on flexural behavior. All tested beams have a total length equal to (2600mm) and a clear distance between supports equal to (2400mm), the width of the beam (250mm), and maintain the same amount of concrete volume. The experimental results showed that when a prestressed reinforcement changes from (one strand) for (two strands), this change will affect the prismatic beam, in which the first cracking and the ultimate load will be raised by (60% and 31.71%), respectively, and for a non-prismatic beam with tapering ratios of (1.5 and 2), the first cracking will increase by (12.5% and 2.63%) also the maximum load raised by (28.3% and 31.03%). The failure mode was flexural for all tested beams with crushing in the compression zone. This paper simulated a numerical analysis of experimentally tested specimens using a nonlinear finite element technique (ABAQUS/CAE 2021 software). The numerical outcomes revealed a good correlation compared with the results of the experimental study. International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/92 10.21533/pen.v11.i1.92 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 223-238 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/92/83 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/93 2025-01-28T15:04:31Z pen:ART driver

Based BIM techniques to clash detection for construction projects Abdalhameed, et. al., Braa F. Building Information Modeling (BIM) has brought about a qualitative change in the design and management of construction projects because it represents a digital simulation of the physical characteristics of the build-ing, and this increases its efficiency before the actual construction begins. In Iraq, most construction pro-jects still use CAD two-dimensional drawing for the purpose of the implementation process, especially gov-ernment projects, and this causes many problems due to the difficulty of communication between the vari-ous disciplines involved in the design and misunderstanding during implementation. This type of problem is reduced by combining BIM drawings prepared by designers and making them into a single model. In this process of merging conflicts are found using BIM tools such as Autodesk Navisworks. There are three main types of detection. This article includes how a clash detector can help improve clashes in the design phase before starting to construct a specific building using BIM applications and focuses on hard detection type (overlap of a particular element with the others). The methodology involved in this research is to study an educational building (24-classroom model school) consisting of structural and architectural BIM models only, clash detection analysis is done using Autodesk Revit and Autodesk Navisworks Manage software. International University of Sarajevo 2023-02-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/93 10.21533/pen.v11.i1.93 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 239-245 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/93/84 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/94 2025-01-21T18:08:29Z pen:ART driver

Characterization and analysis of N2 plasma DC glow discharge at different voltage Haji, Suzan M. In this work, the plasma glow discharge characteristics of nitrogen gas will be studied and analyzed at dif-ferent pressures, and we will study the effect of these pressures on the I-V curve, the Panchen curve, the I-P curve, the current-voltage curve, and their effect on the electrical conductivity of the generated plasma. The distance between the glow electrodes was (15.5) cm. The pressures that were used in this work were (0.025, 0.05, 1.5, 5) T. The results indicated that the discharge was operating in the atypical glow region. On the other hand, the discharge current decreased as the gas pressure increased. On the other hand. Also, the con-ductivity decreased in its values with the increase in applied pressure as well as the voltage of the plasma focus.  International University of Sarajevo 2025-01-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/94 10.21533/pen.v11.i1.94 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 1 (2023); 246-253 2303-4521 10.21533/pen.v11.i1 eng https://pen.ius.edu.ba/index.php/pen/article/view/94/85 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/95 2025-01-28T15:21:00Z pen:ART driver

Design of an AS/RS machine for storage and extraction of items in a warehouse using Finite Element Analysis (FEA) Maradey – Lázaro, et. al., J. G. The globalization of markets and high competitiveness impose new challenges every day on companies that develop their activities in the field of logistics, e-commerce, service, and product distribution. The imple-mentation of automated systems becomes relevant when the objective is to increase productivity, efficiency and reduce costs associated with handling, picking and overhead. The AS / RS systems (i.e., Automated Storage and Retrieval System) are automated machines able to move in the 3 coordinate axes (x, y, z), which are responsible for arranging the items in large warehouses generating a decrease in time delivery and storage.The aim of the article is to show the design of a prototype of an AS / RS (CAD) machine based on Finite Element Analysis (FEA) to verify the behavior before static loads according to Von Misses criteria and to guarantee the appropriate administration, storage, and extraction of each item in the warehouse, respective-ly. Also, it shows the use of the selection matrix that facilitates the interaction with the articles and executes the primary functions according to customer requirements. The result of this research shows the advantages and disadvantages of the implementation of these systems for companies that manage high volumes of stor-age, limited physical space and that require an appropriate management of the elements through the help of an easy-to-implement human-machine interface (HMI) that has control over open loop. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/95 10.21533/pen.v11.i2.95 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 1-12 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/95/86 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/96 2025-01-28T15:22:00Z pen:ART driver

Strategic ambidexterity and its role in achieving contemporary initiatives: an exploratory study of opinions of a sample of managers of travel and tourism companies in holy governorate of Kerbala-Iraq Ahmed, et. al., Ahmed Hussein The research aim to explore influential role of strategic ambidexterity through its two contradictory dimen-sions (exploration and exploitation) as two strategies that contemporary organizations can adopt in light of achieving contemporary initiatives required by current environment, especially tourism sector in Iraq after the paralysis it suffered as a result of spread of Corona virus and impact of repercussions of this pandemic on various Both industrial and service sectors, as researchers targeted tourism companies in Karbala gover-norate, which are characterized by attracting tourists to various visitors for religious tourism and in return, it is a port for their roaming to other cities and countries through tourism companies that need to keep pace with surrounding environment of developments and changes based on adoption of the two strategies of am-bidexterity in Facing those changes and responding to them, as well as their readiness for rapid develop-ments in this sector, as the questionnaire was adopted as a main tool for collecting data on this study by presenting it to the executive directors of those companies with (40) respondents, and after conducting nec-essary statistical tests using SPSS program, it was found that there are a strong positive and significant cor-relation between study variables, as well as a significant effect For strategic ambidexterity across its two dimensions in achieving and promoting contemporary initiatives at corporate level, the study community International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/96 10.21533/pen.v11.i2.96 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 13-21 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/96/87 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/97 2025-01-28T15:22:26Z pen:ART driver

Three-dimensional final element analysis of composite steel - concrete aches Al-Brees, at. al., Roaa H. Latest structure construction crafts frequent use of composite steel-concrete arches for building and bridge applications. The leading goal of this research is to describe a three-dimensional finite element model capa-ble of describing the response of a composite steel-concrete arch. The commercial software Abaqus was implemented to develop the proposed approach, where a certain experimental test results in the literature on a scaled steel-concrete composite arch have been compared to validate the accuracy and adequacy of the proposed finite element model.  Furthermore, the current research developed a finite element model to study the fundamental behavior of a composite steel box-concrete arch with a specific parameter. These parame-ters including the degree of curvature, the number of the shear connector, and the support conditions have been considered the main study parameters. The proposed model has presented an excellent prediction of the initial stiffness, the ultimate strength, and the ductility of the composite arch. The Representative behavior was affected significantly by the designated variable for the steel box section with composite deck. There-fore, these findings may be crafted with the aim of structural design rules. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/97 10.21533/pen.v11.i2.97 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 22-35 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/97/88 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/98 2025-01-28T15:22:51Z pen:ART driver

A comparative study between shrinkage methods (ridge-lasso) using simulation Ghareeb, et. al., Zainab Fadhil The general linear model is widely used in many scientific fields, especially biological ones. The Ordinary Least Squares (OLS) estimators for the coefficients of the general linear model are characterized by good specifications symbolized by the acronym BLUE (Best Linear Unbiased Estimator), provided that the basic assumptions for building the model under study are met. The failure to achieve one of the basic assumptions or hypotheses required to build the model can lead to the emergence of estimators with low bias and high variance, which results in poor performance in both prediction and explanation of the model in question. The hypothesis that there are no multiple linear relationships between the explanatory variables is consid-ered one of the leading hypotheses on which the model is based. Thus, the emergence of this problem leads to misleading results and high (Wide) confidence limits for the estimators associated with those variables due to problems characterizing the model. Shrinkage methods are considered one of the most effective and preferable ways to eliminate the multicollinearity problem. These methods are based on addressing the mul-ticollinearity problems by reducing the variance of estimators in the model. Ridge and Lasso methods repre-sent the most and most common of these methods of shrinkage. The simulation was carried out for different sample sizes (40, 120, 200) and some variables (P=30, 60) in the first and second experiments arbitrarily and at the level of low, medium, and high correlation coefficients (0.2, 0.5, 0.8). When (p=30, 60) Lasso method has the smallest (MSE) than the Ridge method. The Lasso method proved its efficiency by obtaining the least MSE. Optimal Penalty parameter (λ) chosen from Cross-Validation through minimizing (MSE) of prediction. We see a rapid increase for (MSE) for both (Ridge-Lasso) where the top axis indicates the num-ber of model variables, and when the correlation between variables increases and sample size too, we can see the (MSE) values increase in the Ridge method than the Lasso method. A ridge method gives greater efficiency when the sample size is more significant than variables (p<n), but the Ridge method cannot shrink coefficients to precisely zero. So, the elasticity of ridge coefficients decreases, but variance increases bias, also (MSE) first remains relatively constant and then increases fast.   International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/98 10.21533/pen.v11.i2.98 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 36-47 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/98/89 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/99 2025-01-28T15:23:21Z pen:ART driver

Development of a monitoring system for COVID-19 monitoring in early stages Maradey – Lázaro, et. al., J. G. Covid-19 is considered the most infectious virus today. Likewise, the struggle to mitigate the effects of the variants, the flexibility in some measures such as the use of face masks, the advancement of vaccination and prevention and self-care campaigns continue to be topics of research and of global interest. The world health authorities published that the disease was characterized by presenting the same symptoms as the flu along with a complex picture where in the most serious cases they lead to difficulty breathing due to pneumonia, sepsis and septic shock that can lead to death. Some systems implemented for taking body temperature such as thermographic cameras, digital thermometers, for the description of symptoms in the people they analyze at the time of carrying out the epidemiological fences are not enough, since they handle low precision, are taken in isolation, individually or randomly and is not suitable for characterizing interest groups. Then, establishing risk levels by measuring non-invasive variables can be considered inputs into prevention campaigns and a low-cost way of monitoring the community. This article shows the design of a non-invasive embedded device for the measurement of 5 priority variables for the detection of the risk of covid-19 infection. The proposed device was duly calibrated and synchronized for the acquisition of data from 594 people in the city of Bucaramanga, Colombia, who authorize the monitoring of the symptoms. The people must be in a state of rest to be able to acquire the data with great accuracy, in this way the data is entered into the system in charge of doing the monitoring analysis. Additionally, the implementation of an interface that allows the visualization of results, laying the foundations for the development of automatic learning techniques or models for the risk classification in future work. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/99 10.21533/pen.v11.i2.99 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 48-61 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/99/90 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/100 2025-01-28T15:23:41Z pen:ART driver

Molecular analysis of 16s-rRNA and associated gene segments for identification of probiotic phenotypes Ćosić, et. al., Amar The 16s-rRNA consists of hypervariable regions (V1 – V9) that demonstrate considerable sequence diver-sity among different bacteria. Species-specific sequences within a given hypervariable region constitute useful targets for diagnostic assays and other scientific investigations. Usually, the size of the gene region is 1500 bp, which is large enough to be analyzed using bioinformatic tools and applied for detection. The need to advance the knowledge of the 16s-rRNA gene segments in bacterial strains would allow better understanding and better diagnostic possibilities when dealing with them. This could also be the basis for investigation of pathogenic microorganisms. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/100 10.21533/pen.v11.i2.100 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 62-77 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/100/91 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/101 2025-01-28T15:23:58Z pen:ART driver

Determination of combined sibship indices using 15 STR loci and a grey zone in a small local population in central Bosnia and Herzegovina Mušanović, et. al., Jasmin This study investigates the genetic diversity and relatedness among a small local population in Bosnia and Herzegovina. In a genetic research study, a sample of 38 individuals was collected from the village of Vukotići, consisting of 21 male and 17 female subjects. The total genomic DNA was extracted using a mod-ified Miller protocol. The QUANTIFILER DNA identification kit was used to quantify the total human DNA in the sample. The sibship relationship was assessed by computing the likelihood ratio for each of the 15 STR loci in both relatives and non-relatives. Results showed a higher homogeneity of the small local population compared to the mixed population within the larger population. Variability in peak height ob-served in the genetic analysis was attributed to differences in DNA concentration in the extracted samples. Probability of relatedness among participants in the Vukotići village was found to be low. Central tendency and variability measures revealed valuable insights into sample distribution and variation. The study con-cludes that CSI=1 and CSI=3 can be used as reliable tools to determine sibship in small local populations without a "gray zone". International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/101 10.21533/pen.v11.i2.101 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 78-91 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/101/92 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/102 2025-01-28T15:24:17Z pen:ART driver

Crowd counting using Yolov5 and KCF Maktoof, et. al., Mohammed Abdul Jaleel Crowd detection has various applications nowadays. However, detecting humans in crowded circumstances is difficult because the features of different objects conflict, making cross-state detection impossible. Detec-tors in the overlapping zone may therefore overreact. In this paper, real-time people counting is proposed using a proposed model of the YOLOv5 (You Only Look Once) algorithm and KCF (kernel correlation fil-ter) algorithm. The YOLOv5 algorithm was used because it is considered one of the most accurate algo-rithms for detecting people in real time. Despite the high accuracy of the YOLOv5 algorithm in detecting the people in the image, video or real-time camera capturing, it needs an increase in speed.For this reason, the YOLOv5 algorithm was combined with the KCF tracking algorithm. Where the YOLOv5 algorithm identifies people to be tracked by the KCF. The YOLOv5 algorithm was trained on a database of people, and the system's accuracy reached 98%. The speed of the proposed system was in-creased after adding the KCF. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/102 10.21533/pen.v11.i2.102 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 92-101 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/102/93 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/103 2025-01-12T23:22:52Z pen:ART driver

A novel approach for coordinated design of TCSC controller and PSS for improving dynamic stability in power systems Alwan, Hayder Okab The purpose of this article is to present a novel strategy for the coordinated design of the Thyristor Con-trolled Series Compensator (TCSC) controller and the Power System Stabilizer (PSS). A time domain objec-tive function that is based on an optimization problem has been defined. This objective function takes into account not only the influence that disturbances have on the mechanical power, but also, and this is more accurately the case, the impact that disturbances have on the reference voltage. When the objective function is minimized, potential disturbances are quickly mitigated, and the deviation of the speed of the generator's rotor is limited; as a result, the system's stability is ultimately improved. Particle Swarm Optimization (PSO) and the Shuffled Frog Leaping Algorithm are both components of a composite strategy that is utilized in the process of determining the optimal controller parameters. (SFLA). An independent controller design as well as a collaborative controller design utilizing PSS and TCSC are developed, which enables a direct evalua-tion of the functions performed by each. The presentation of the eigenvalue analysis and the findings of the nonlinear simulation can help to provide a better understanding of the efficacy of the outcomes. The find-ings indicate that the coordinated design is able to successfully damp low-frequency oscillations that are caused by a variety of disturbances, such as changes in the mechanical power input and the setting of the reference voltage, and significantly enhance system stability in power systems that are connected weekly. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/103 10.21533/pen.v11.i2.103 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 102-116 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/103/94 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/104 2025-01-28T15:24:54Z pen:ART driver

Analysis of the thermal sensation in single-family home from microclimatic monitoring: Case study Bucaramanga Colombia Ascanio-Villabona, et. al., J. G. The present work describes the experimentation of monitoring for the finding of the heat index and the indi-vidual thermal sensation, where the behavior of the real temperature in the exterior and interior of a conven-tional single-family house with a warm and temperate climate in Colombia was analyzed. The detailed mon-itoring campaign is carried out for 2880 hours, where the conditions of the interior area of the house and the local climatic conditions of the area are recorded, through the implementation of a thermohydrometers regis-tration system. The methodology for the calculation of the sensation of heat and thermal comfort was deter-mined under the adjusted equation of cooling power of Leonardo Hill and Morikofer-Davos, applied in the analyses of the Institute of Hydrology, Meteorology and Environmental Studies - IDEAM. The results showed a thermal sensation of dissatisfaction of 97.7%, because with the monitored temperature the thermal sensation is calculated yielding in 1382.4 hours with very hot, 1151.6 hours of hot and 280.8 hours of warmthermal sensation. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/104 10.21533/pen.v11.i2.104 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 117-130 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/104/95 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/105 2025-01-28T15:25:24Z pen:ART driver

Decision support system based on BWM for Analyzing success factors affecting the quality in the Iraqi construction projects Yas, et. al., Ali Hashim Creating a balance between cost, time, and quality in construction projects is always expected. It is possible to have a project with excellent quality and minimal cost, but at the expense of time, or vice versa. The goal of this paper is to discover, evaluate and prioritize the factors that most influence the desired construction projects' level of quality (success factors) in Iraq. Over a comprehensive review of literature, 11 potential quality-related factors were found to fall into the following five categories: client, contractor, design, mate-rials, and project related factors. These factors' significance was determined using fuzzy Best Worst Method (BWM). Result shows the most three significant success factors influencing quality in the construction pro-jects were related to contractor, client, and designer. These factors were financial competence of contractor, technical capability of client, and designer suitable selection with weights (30.84%, 15.58%, and 10.05%) respectively. These results conclude that maximization of the success factors will guarantee that the building sector achieves its quality objectives. International University of Sarajevo 2023-03-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/105 10.21533/pen.v11.i2.105 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 131-139 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/105/96 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/106 2025-01-28T15:25:44Z pen:ART driver

New strategic approaches for implementing intelligent streetscape towards livable streets in City of Riyadh Alshammari , Talal Obaid Streetscape can be considered as a term “which can be used to clarify and explain the street's built-in and the basic structure, also it is known as the design of the visual appeal and quality of the street effect. A good tool for improving urban quality and establishing a feeling of place is design of streetscape. People's re-quirements for public areas have changed as internet usage has continued to expand. The numbers of people who use cars has increased a lot in Riyadh city. This leads to some problems in a direct and an indirect way, such as car accidents, traffic overcrowding, lack of services for bicyclists and pedestrians, weak social rela-tionships between the people, and high obesity levels. Reconsider design of streetscape in Riyadh city espe-cially in the era of digital information technology will revitalize regions by providing reshaping the urban experience toward higher livability that respond to and connect with onlookers in order to increase under-standing of onlookers' activities in the streets, promote their sense of place, and improve safety and livabil-ity in urban areas.. The presented study focuses on the qualitative approach that is according to the related theoretical exploration and research; so, this paper combines the design of streetscape with digital infor-mation technology, with new ideas of intelligent streetscape’s design for enhancing Riyadh city to make the user's life livable. The current paper ended with proposed strategic approaches and suggestions to enhance the city of Riyadh's streetscape style as an outcome of the theoretical research. Results indicated that streets, which contain a close combination with the resident’s daily life activities and the important consequences on their mental comfort, have not attracted any care in terms of academic research. This resulted in a failure in providing solid strategic approaches for intelligent design of streetscape in Riyadh city.   International University of Sarajevo 2023-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/106 10.21533/pen.v11.i2.106 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 140-154 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/106/97 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/108 2025-01-28T15:26:22Z pen:ART driver

The most common treatment methods through comparing the studies results of children with autism spectrum syndrome Alshawwa, et. al., Samar Zuhair Autism (ASM) is a group of neurodevelopmental condition capable of being diagnosed very early in childhood with variety of symptoms such as inability to communicate effectively, aggressive behaviour, and abnormal repetitive routines. The review compares the treatment of ASM with alternative modalities and pharmaceutical medications with evidence that parents prefer to use alternative medicine than pharmaceutical medications in treatment of ASM due to side effects and safety concerns associated with pharmaceutical medications. However, the review also highlights that pharmaceutical medications has no straightforward cure but have specialised drugs that can help manage specific associated symptoms with the syndrome, the (FDA) has only verified 2 drugs for ASM treatment (aripiprazole and risperidone) which help autistic children manage irritability problems associated with ASM syndromes, other drugs have not been adequately studied and not yet approved, therefore there are no evidence to support their use. International University of Sarajevo 2023-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/108 10.21533/pen.v11.i2.108 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 155-165 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/108/98 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/109 2025-01-28T15:26:48Z pen:ART driver

Study of chemical and physical parameters affected on purification of water from inorganic contaminants Abdullah, et. al., Waleed R. The ability to remove perchlorate anions was investigated by the adsorption technique in a laboratory scale and by a batch type unit from contaminated aqueous solutions prepared at specific concentrations. The ad-sorption process was carried out using banana peels, which were chosen as an available, cheap, and low-cost adsorption media. The studied operating conditions in the treatment process were the acidic function, shaking speed, contact time, temperature, in addition to the initial concentration of perchlorate, which rang-ing from 1-10, 100-400 rpm, 10-180 min, 20-50 ºC, 50-1000 ppb respectively, while the dose of adsorbent media ranged between 0.5-6 g and the particle size ranged from 0-Pan. The experimental results showed that the removal efficiency of perchlorate changes directly with the shaking speed, contact time, particle size and the dose of adsorbent, while it was inversely with the remaining variables for certain levels. Thus, two types of contaminants were disposed of simultaneously in a beneficial, and eco- friendly manner, reaching to Zero Residue Level (ZRL). International University of Sarajevo 2023-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/109 10.21533/pen.v11.i2.109 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 166-175 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/109/99 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/110 2025-01-28T15:27:39Z pen:ART driver

Automatic image annotation system using deep learning method to analyse ambiguous images Al-Shammary, et. al., Ali Abbas Image annotation has gotten a lot of attention recently because of how quickly picture data has expanded. Together with image analysis and interpretation, image annotation, which may semantically describe imag-es, has a variety of uses in allied industries including urban planning engineering. Even without big data and image identification technologies, it is challenging to manually analyze a diverse variety of photos. The improvements to the Automated Image Annotation (AIA) label system have been the subject of several scholarly research. The authors will discuss how to use image databases and the AIA system in this essay. The proposed method extracts image features from photos using an improved VGG-19, and then uses near-by features to automatically forecast picture labels. The proposed study accounts for both correlations be-tween labels and images as well as correlations within images. The number of labels is also estimated using a label quantity prediction (LQP) model, which improves label prediction precision. The suggested method addresses automatic annotation methodologies for pixel-level images of unusual things while incorporating supervisory information via interactive spherical skins. The genuine things that were converted into metada-ta and identified as being connected to pre-existing categories were categorized by the authors using a deep learning approach called a conventional neural network (CNN) - supervised. Certain object monitoring sys-tems strive for a high item detection rate (true-positive), followed by a low availability rate (false-positive). The authors created a KD-tree based on k-nearest neighbors (KNN) to speed up annotating. In order to take into account for the collected image backdrop. The proposed method transforms the conventional two-class object detection problem into a multi-class classification problem, breaking the separated and identical dis-tribution estimations on machine learning methodologies. It is also simple to use because it only requires pixel information and ignores any other supporting elements from various color schemes. The following factors are taken into consideration while comparing the five different AIA approaches: main idea, signifi-cant contribution, computational framework, computing speed, and annotation accuracy. A set of publicly accessible photos that serve as standards for assessing AIA methods is also provided, along with a brief description of the four common assessment signs. International University of Sarajevo 2023-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/110 10.21533/pen.v11.i2.110 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 176-185 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/110/100 https://creativecommons.org/licenses/by/4.0

oai:ojs2.pen.ius.edu.ba:article/111 2025-01-28T15:28:06Z pen:ART driver

Image filtering by convolution Sultan, et. al., Nora H. Image filtering is a common technique used in digital image processing that can be used to take a picture appear differently aesthetically. Noise, also known as distracting visual artifacts, can lower the overall quali-ty of a picture, which is why image improvement techniques are required to fix the problem. It can be uti-lized in a variety of ways, including smoothing, sharpening, reducing noise, and detecting borders, to name a few. In this piece, we will be using convolutional techniques to correct the images that were messed up. The first thing that needs to be done is a point-by-point multiplication of the frequency domain representa-tion of the picture that's being entered through a black image that has a small white rectangle in the mid of it. This is the first step. Only the lowest harmonics are kept after we apply a filter that gets rid of the higher ones. Because the high frequencies in the input picture are filtered out, the special domain of the image that is produced should look like a blurrier variation of the original picture. Therefore, a greater degree of detail preservation is indicated when the white rectangle W is larger because this indicates that more high-frequency components of I have been preserved. International University of Sarajevo 2023-04-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article application/pdf https://pen.ius.edu.ba/index.php/pen/article/view/111 10.21533/pen.v11.i2.111 Periodicals of Engineering and Natural Sciences; Vol. 11 No. 2 (2023); 186-196 2303-4521 10.21533/pen.v11.i2 eng https://pen.ius.edu.ba/index.php/pen/article/view/111/101 https://creativecommons.org/licenses/by/4.0 179d4e04cee32c0f983a7caaac211b5f