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Research Article
Title: HOW ECONOMIC FREEDOM AFFECT THE EASE OF DOING BUSINESS? CROSS-COUNTRY QUANTILE REGRESSION MIXTURE APPROACH
Authors: Serpil KILIÇ DEPREN, Özer DEPREN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:434-442
DOI: 10.14744/sigma.2021.00031
Viewed: (375) times
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Research Article
Title: ECOLOGICAL RISK ASSESSMENT OF DOMESTIC SEWAGE SLUDGE: A CASE STUDY
Authors: Elif YAKAMERCAN, Ahmet AYGÜN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:422-433
DOI: 10.14744/sigma.2021.00030
Viewed: (250) times
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Research Article
Title: THERMODYNAMIC STUDIES ON TERT-AMINE MODIFIED POLYSTYRENE BASED POLYMER/SOLVENT SYSTEMS BY INVERSE GAS CHROMATOGRAPHY METHOD
Authors: A. Çiğdem ADIGÜZEL, Burak KORKMAZ, Fatih ÇAKAR, Özlem CANKURTARAN, B. Filiz ŞENKAL
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:414-421
DOI: 10.14744/sigma.2021.00029
Viewed: (236) times
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Research Article
Title: VIBRATION SUPPRESSION OF A MICRO BEAM SUBJECTED TO MAGNETO-ELECTRIC LOAD
Authors: Kenan YILDIRIM
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:404-413
DOI: 10.14744/sigma.2021.00028
Viewed: (208) times
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Research Article
Title: CHARACTERIZATION OF IN VITRO BIOACTIVE PERFORMANCE OF Hypericum perforatum USING RESPONSE SURFACE METHODOLOGY
Authors: Mahmut KAPLAN, Serap KÖPRÜ, Rabia SAY, Kevser KARAMAN, M. Mücahit YILMAZ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:392-403
DOI: 10.14744/sigma.2021.00027
Viewed: (206) times
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Research Article
Title: ESTIMATION OF GROUND TYPES IN DIFFERENT DISTRICTS OF GÜMÜŞHANE PROVINCE BASED ON THE AMBIENT VIBRATIONS H/V MEASUREMENTS
Authors: Serkan ÖZTÜRK, Yasemin BEKER, Mahmut SARI, Levent PEHLİVAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:374-391
DOI: 10.14744/sigma.2021.00026
Viewed: (178) times
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Research Article
Title: MONITORING OF HEAVY METAL POLLUTION BY USING POPULUS NIGRA AND CEDRUS LIBANI
Authors: Harun CIFTCI, Cigdem ER CALISKAN, Erdal ASLANHAN, Ekrem AKTOKLU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:367-373
DOI: 10.14744/sigma.2021.00025
Viewed: (166) times
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Research Article
Title: DETERMINATION OF CHANGES IN SOME BIOLOGICAL PROPERTIES DURING STORAGE OF SOME CONVENTIONAL SORBETS
Authors: Affet Demet KAFADAR, Lutfiye EKİCİ, Sevil ALBAYRAK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:351-366
DOI: 10.14744/sigma.2021.00024
Viewed: (152) times
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Research Article
Title: TIME-VARYING PARAMETER ESTIMATION AND ADAPTIVE KALMAN FILTER IN COMPUTER AIDED CONTROL APPLICATION
Authors: Levent ÖZBEK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:343-350
DOI: 10.14744/sigma.2021.00023
Viewed: (164) times
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Research Article
Title: IDENTIFICATION OF THE PRIORITY REGIONS IN THE CUSTOMER WATER METERS REPLACEMENT USING THE AHP AND ELECTRE METHODS
Authors: Salih YILMAZ, Mahmut FIRAT, Cansu BOZKURT, Özgür ÖZDEMİR
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: December, Year: 2021, Volume: 39, Issue: 4, (DEC 2021), pp:331-342
DOI: 10.14744/sigma.2021.00022
Viewed: (179) times
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Research Article
Title: DESIGN OF EXPERIMENTS OPTIMIZATION APPLICATION IN PHYSICS: A CASE STUDY OF THE DAMPED DRIVEN PENDULUM EXPERIMENT
Authors: Abdulkadir ATALAN, Hasan ŞAHİN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: September, Year: 2021, Volume: 39, Issue: 3, (SEP 2021), pp:322-330
DOI: 10.14744/sigma.2021.00020
Viewed: (459) times
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Technical Note
Title: MODELLING OF JUST-IN-TIME DISTRUBUTION NETWORK UNDER RAW MATERIAL QUALITY AND TIME CONSTRAINTS
Authors: Beren GÜRSOY, Selin SONER KARA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: September, Year: 2021, Volume: 39, Issue: 3, (SEP 2021), pp:313-321
DOI: 10.14744/sigma.2021.00019
Viewed: (345) times
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Technical Note
Title: GLOBAL STABILITY OF SUSCEPTIBLE DIABETES COMPLICATION (SDC) MODEL IN DISCRETE TIME
Authors: Şeyma ŞİŞMAN, Mehmet MERDAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: September, Year: 2021, Volume: 39, Issue: 3, (SEP 2021), pp:290-312
DOI: 10.14744/sigma.2021.00018
Viewed: (310) times
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Technical Note
Title: SYNTHESIS, STRUCTURAL STUDIES AND ANTIOXIDANT ACTIVITIES OF M(II) COMPLEXES WITH NOS DONOR SCHIFF BASE LIGAND
Authors: Nevin TURAN, Mustafa BİNGÖL , Ahmet SAVCI, Enver Fehim KOÇPINAR , Naki ÇOLAK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: September, Year: 2021, Volume: 39, Issue: 3, (SEP 2021), pp:279-289
DOI: 10.14744/sigma.2021.00017
Viewed: (302) times
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Research Article
Title: A FINITE ELEMENT STUDY ON MODAL ANALYSIS OF LIGHTWEIGHT PIPES
Authors: Berkay ERGENE, Bekir YALÇIN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: September, Year: 2021, Volume: 39, Issue: 3, (SEP 2021), pp:268-278
DOI: 10.14744/sigma.2021.00016
Viewed: (362) times
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1234 Article(s) Found
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