Periodicals of Engineering and Natural Sciences (PEN)

Periodicals of Engineering and Natural Sciences (ISSN: 2303-4521) is an international open access single-blind review journal published online.

Publication frequency: Semiyearly until June 2019. Quarterly since June 2019.

Indexing: Scopus, DOAJ, Google Scholar...

Digital Object Identifier DOI: 10.21533/pen


Vol 9, No 1 (2021)

Table of Contents

Articles

Iqbal Mahmood Alwan, Narjis Hadi Irhaif, Asma Najim Abdullah
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3-10
Aqeel Kamil Kadhim
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11-28
Ali Mohammed Sahan, Ali Sami Al-Itbi, Jawad Sami Hameed
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29-36
Nora H. Sultan, Noor Hassan Abed Khammas, Ziadoon Hassan Najm
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37-47
Tuka Kareem Jebur
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48-58
Suad Kakil Ahmed, Huda Abdalkaream Mardan
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59-70
Esmaeel Ali Alselmawi, Rahim Alhamzawi
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71-79
Ibrahim A. Amory, Ahmed H. Ahmed, Zahraa Hasan
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80-89
Thamer Yahya Thamer, Nadine Nassif, Ayad H. Almaeini
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90-103
Alan Catovic
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104-126
Gulnara S. Abdrassilova, Elvira T. Murzagaliyeva, Sabina Kuc
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127-138
Ali Hasan Abdulla, Nihad Raouf Maaroof, Taha Ibadalden Abdulkarim
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139-146
Ahmed A. Hassan, Abdulkhaliq A. Jaafer, Haider H. Haider, Hussain K. Hashim, Karrar H. Shwaikh
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147-155
Inaam Rikan Hassan
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156-161
Hayder Oleiwi Hayder Oleiwi, Yu Wang, Levingshan Augusthus-Nelson, Yan Wang, Gareth Whittleston, Majid Muttashar
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162-173
Mahmood S. Hashim, Ahmed M. Abdulhadi, Muntadher J. Taher
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174-183
Faaza A. Almarsoomi, Israa A. Alwan
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184-193
Armas Elizabeth, Cruz Patricio, Soto Ricardo, Lema Henry, Granja Mario, Rosales Andrés, Zambrano Iván
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194-215
Izzat Niazi Sulaiman, Mohammed Jawad Zeinalabideen, Adnan Ajam Abed
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227-234
Muatamed Abed Hajer, Samer Muthana Sarsam
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235-241
Mustafa Raheem Neamah, Hasanian Ali Thuwaib, Baraa I. Farhan
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242-252
Alaan Ghazi, S. A. Aljunid, Syed Zulkarnain Syed Idrus, Alaa Fareed, Aras Al-dawoodi, Zahraa Hasan, R. Endut, N. Ali, Aram Hewa Mohsin, Sirwan Saber Abdullah
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253-276
Nagham Ali Jasim, Balsam Saad Ismail
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277-284
Ameer Musa Imran Alhseeni, Ali Abdulmohsin Abdulraeem Al-rubaye
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285-292
Wathiq Abed, Qais Aish, Ahmmed Hamed
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293-300
Samera Ibrahim Kadum Al-Addal
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301-307
Israa A. Alwan Alwan, Faaza A. Almarsoomi
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216-226
Rysbek B. Baimakhan, Zhanar B. Kadirova, Assima A. Seinassinova, Aigerim R. Baimakhan, Gulzhan M. Baimakhanova
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308-321