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Technical Note
Title: A NUMERICAL TREATMENT FOR THE GILSON-PICKERING EQUATION USING COLLOCATION METHOD WITH ERROR ESTIMATION
Authors: Seydi Battal Gazi KARAKOÇ, Samir Kumar BHOWMIK, Khaled OMRANI, Derya YILDIRIM SUCU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:875-884
DOI: 10.14744/sigma.2023.00094
Viewed: (180) times
Abstract | Full Text| PDF

Research Article
Title: COMPLETELY WEAKLY, QUASI-REGULAR SEMIGROUPS CHARACTERIZED BY SOFT UNION QUASI IDEALS, (GENERALIZED) BI-IDEALS AND SEMIPRIME IDEALS
Authors: Aslıhan SEZGİN, Keziban ORBAY
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:868-874
DOI: 10.14744/sigma.2023.00093
Viewed: (145) times
Abstract | Full Text| PDF

Research Article
Title: REHYDRATION CHARACTERISTICS AND KINETICS OF TRADITIONALLY DRIED MUSSELS AT DIFFERENT TEMPERATURES
Authors: Zehra Özden ÖZYALÇIN, Azmi Seyhun KIPÇAK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:858-867
DOI: 10.14744/sigma.2022.00044
Viewed: (133) times
Abstract | Full Text| PDF

Research Article
Title: SOME NEW PROPERTIES OF OCTONIONIC MATRICES
Authors: Özcan BEKTAŞ, Salim YÜCE
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:848-857
DOI: 10.14744/sigma.2023.00092
Viewed: (123) times
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Research Article
Title: SOLUTIONS OF MULTIPLICATIVE LINEAR DIFFERENTIAL EQUATIONS VIA THE MULTIPLICATIVE POWER SERIES METHOD
Authors: Numan YALCIN, Mutlu DEDETURK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:837-847
DOI: 10.14744/sigma.2023.00091
Viewed: (132) times
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Research Article
Title: STUDIES ON TOXICITY OF NOSCAPINE LOADED HYDROXYAPATITE NANOPARTICLES
Authors: Hava KÖLEMEK, İbrahim BULDUK, Yavuz ERGÜN, Safiye Elif KORCAN, Recep LİMAN, Muhsin KONUK, Funda KARABAĞ ÇOBAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:824-836
DOI: 10.14744/sigma.2023.00090
Viewed: (92) times
Abstract | Full Text| PDF

Research Article
Title: CAN WE IDENTIFY THE SIMILARITY OF COURSES IN COMPUTER SCIENCE?
Authors: Tugay KARADAĞ, Coşkun PARIM, Ali Hakan BÜYÜKLÜ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:812-823
DOI: 10.14744/sigma.2023.00089
Viewed: (86) times
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Research Article
Title: LYAPUNOV-TYPE INEQUALITY FOR AN ANTI-PERIODIC FRACTIONAL BOUNDARY VALUE PROBLEM OF THE RIESZ-CAPUTO DERIVATIVE
Authors: Suayip TOPRAKSEVEN, Recep BENGI, Yusuf ZEREN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:807-811
DOI: 10.14744/sigma.2023.00088
Viewed: (81) times
Abstract | Full Text| PDF

Research Article
Title: ROLE OF AIR POLLUTION ON COVID-19 IN ISTANBUL
Authors: İlknur DÖNMEZ, Zafer ASLAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:793-806
DOI: 10.14744/sigma.2022.00021
Viewed: (87) times
Abstract | Full Text| PDF

Research Article
Title: AN EXPLORATORY STUDY ON THE CRITICAL FEATURES OF CONSTRUCTION PROJECT PLANNING SOFTWARE
Authors: Ozan OKUDAN, Murat ÇEVİKBAŞ, Zeynep IŞIKIN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:781-792
DOI: 10.14744/sigma.2023.00046
Viewed: (88) times
Abstract | Full Text| PDF

Research Article
Title: MACHINING OF Ti–6Al–4V ALLOY BY FIBER LASER: DETERMINING THE EFFECTS OF PARAMETERS ON SURFACE ROUGHNESS
Authors: Şefika KASMAN, Burak BÜYÜKER, Sertan OZAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:770-780
DOI: 10.14744/sigma.2023.00087
Viewed: (86) times
Abstract | Full Text| PDF

Research Article
Title: TECHNO-ECONOMIC AND ENVIRONMENTAL ANALYSIS OF MICROGRID: A CASE STUDY OF KARABUK UNIVERSITY
Authors: Ziyodulla YUSUPOV, Nuri ALMAGRAHI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:758-769
DOI: 10.14744/sigma.2023.00086
Viewed: (123) times
Abstract | Full Text| PDF

Research Article
Title: FIXED POINT THEOREM FOR NEUTROSOPHIC EXTENDED METRIC-LIKE SPACES AND THEIR APPLICATION
Authors: Umar ISHTIAQ, Necip ŞİMŞEK, Khalil JAVED, Khaleel AHMED, Fahim UDDIN, Murat KIRIŞÇI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:750-757
DOI: 10.14744/sigma.2023.00085
Viewed: (118) times
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Research Article
Title: EXAMINING THE EFFECTS OF MUSIC ON COGNITIVE SKILLS OF CHILDREN IN EARLY CHILDHOOD WITH THE PYTHAGOREAN FUZZY SET APPROACH
Authors: Murat KIRIŞCI, Nihat TOPAÇ, Musa BARDAK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:742-749
DOI: 10.14744/sigma.2023.00084
Viewed: (121) times
Abstract | Full Text| PDF

Research Article
Title: A 2-STAGE FUZZY ANP APPROACH FOR SELECTION PROCEDURE OF THE OPTIMUM VARIANT OF OFFICE PLAN
Authors: Şahika ÖZDEMİR
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: August, Year: 2023, Volume: 41, Issue: 4, (AUG 2023), pp:729-741
DOI: 10.14744/sigma.2023.00083
Viewed: (123) times
Abstract | Full Text| PDF

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