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Volume: 38, Issue Number: 1

Volume: 38, Issue: 1 (35 Articles)

Research Article
Title: A THEORETICAL PERFORMANCE INVESTIGATION OF IRREVERSIBLE INTERNAL COMBUSTION ENGINE NAMED AS DUAL-MILLER CYCLE
Authors: Yasin UST, Ibrahim OZSARI, Feyyaz ARSLAN, Aykut SAFA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:459-473
DOI: x
Viewed: (215) times
Abstract | Full Text| PDF

Research Article
Title: CFD PREDICTION OF OIL-WATER TWO-PHASE STRATIFIED FLOW IN A HORIZONTAL CHANNEL: COUPLED LEVEL SET - VOF APPROACH
Authors: Satish Kumar DEWANGAN, Santosh Kumar SENAPATI, Vivek DESHMUKH
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:1-19
DOI: x
Viewed: (26) times
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Research Article
Title: OPTIMIZATION AND MODELING OF THE WORKPIECE POSITION
Authors: Mohamed RAHOU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:47-59
DOI: x
Viewed: (35) times
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Research Article
Title: A DECISION SUPPORT SYSTEM FOR CROSS-DOCKING CENTERS WITH DIFFERENT OBJECTIVES
Authors: Gökçe ÖZDEN, İnci SARIÇİÇEK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:421-440
DOI: x
Viewed: (167) times
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Research Article
Title: EFFECT OF WATER CURING TEMPERATURE ON COMPRESSIVE STRENGTH DEVELOPMENT AND WATER ABSORPTION CAPACITY OF MORTAR MIXTURES
Authors: Ali MARDANI AGHABAGLOU, Süleyman ÖZEN, Muhammet Gökhan ALTUN, Zia Ahmad FAQIRI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:135-148
DOI: x
Viewed: (30) times
Abstract | Full Text| PDF

Research Article
Title: COMPARISON OF INTENSITY ESTIMATION METHODS FOR AN EARTHQUAKE SPATIAL POINT PATTERN
Authors: Cenk İÇÖZ, Kadir Özgür PEKER
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:349-359
DOI: x
Viewed: (92) times
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Research Article
Title: A NEW TIME-DEPENDENT MODEL FOR CONTROLLING THE GAS INJECTION PRESSURE IN CONTINUOUS GAS LIFT
Authors: Mohammad Reza MAHDIANI, Ehsan KHAMEHCHI, Amir Abolfazl SURATGAR
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:265-280
DOI: x
Viewed: (25) times
Abstract | Full Text| PDF

Research Article
Title: SEPARATION OF Co(II) AND Se(VI) FROM A METAL AND GLASS INDUSTRY WASTES USING GRAPHENE OXIDE-MANGANE OXIDE NANOCOMPOSITE
Authors: Sevil AKÇAĞLAR
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:29-46
DOI: x
Viewed: (26) times
Abstract | Full Text| PDF

Research Article
Title: EFFECT OF THE VARIABLE RESISTANCE ROTOR SLOT DESIGN ON THE PERFORMANCE OF THE SINGLE PHASE ASYNCHRONOUS MOTOR (SPAM)
Authors: Merve ŞEN KURT, Ahmet FENERCİOĞLU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:213-226
DOI: x
Viewed: (24) times
Abstract | Full Text| PDF

Research Article
Title: PESTICIDE RESIDUES IN WATER AND SEDIMENT OF ERGENE RIVER AND TRIBUTARIES IN TURKEY
Authors: Cem TOKATLI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:361-370
DOI: x
Viewed: (82) times
Abstract | Full Text| PDF

Research Article
Title: MULTI-OBJECTIVE SCHEDULING BY MAXIMIZING MACHINE PREFERENCES FOR UNRELATED PARALLEL MACHINES
Authors: İnci SARIÇİÇEK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:405-420
DOI: x
Viewed: (90) times
Abstract | Full Text| PDF

Research Article
Title: APPLICATION OF WATER QUALITY INDEX FOR DRINKING PURPOSES IN DAM LAKES: A CASE STUDY OF THRACE REGION
Authors: Cem TOKATLI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:393-402
DOI: x
Viewed: (82) times
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Research Article
Title: DISTRICT METERED AREAS FOR WATER LOSS MANAGEMENT IN DISTRIBUTION SYSTEMS
Authors: Fatih Mehmet DURMUŞÇELEBİ, Özgür ÖZDEMİR, Mahmut FIRAT
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:149-170
DOI: x
Viewed: (26) times
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Research Article
Title: ENERGY RECOVERY FROM WASTE IN FEZ CITY (MOROCCO)
Authors: Mohammed SAGHIR, Youssef NAIMI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:83-93
DOI: x
Viewed: (33) times
Abstract | Full Text| PDF

Research Article
Title: ENTROPY METHOD FOR EARTHQUAKE VOLATILITY
Authors: Ayşe METİN KARAKAŞ, Sinan ÇALIK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:329-348
DOI: x
Viewed: (96) times
Abstract | Full Text| PDF

Research Article
Title: EFFECT OF PARAMETERS ON REMOVAL OF RB19 DYE BY LACCASE ENZYME AND KINETIC EVALUATION
Authors: Deniz İzlen ÇİFÇİ, Rıza ATAV, Yalçın GÜNEŞ, Elçin GÜNEŞ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:371-382
DOI: x
Viewed: (104) times
Abstract | Full Text| PDF

Research Article
Title: THE RELATIONSHIP BETWEEN THE FUSION TEMPERATURE AND DIMENSIONAL ACCURACY OF 3D PRINTED PARTS
Authors: Pinar DEMIRCIOGLU, Ismail BOGREKCI, H. Saygin SUCUOGLU, Emrah GUVEN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:21-28
DOI: x
Viewed: (32) times
Abstract | Full Text| PDF

Research Article
Title: AN INVESTIGATION ON RC HIGH-RISE STRUCTURES WITH AND WITHOUT OUTRIGGERS UNDER LATERAL STATIC LOADS
Authors: İbrahim Özgür DEDEOĞLU, Yusuf CALAYIR, Bengi ARISOY
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:191-211
DOI: x
Viewed: (35) times
Abstract | Full Text| PDF

Research Article
Title: DESIGN AND REALIZATION OF DUAL BAND MICROSTRIP SIW ANTENNA
Authors: Aysu BELEN, Filiz GÜNEŞ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:305-310
DOI: x
Viewed: (93) times
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Research Article
Title: TRACE AND TOXIC ELEMENTS IN THE WATERS OF A CONTAMINATED WATERSHED IN TURKEY
Authors: Cem TOKATLI, Esengül KÖSE, Arzu ÇİÇEK, Özgür EMİROĞLU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:383-392
DOI: x
Viewed: (87) times
Abstract | Full Text| PDF

Research Article
Title: MODELING OF THREE-PHASE THREE-LEVEL RECTIFIER WITH SPACE VECTOR PULSE WIDTH MODULATION METHOD IN MATLAB/SIMULINK PROGRAM
Authors: Halil İbrahim YÜKSEK, Uğur ARİFOĞLU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:227-251
DOI: x
Viewed: (33) times
Abstract | Full Text| PDF

Research Article
Title: AN INVESTIGATION INTO THE PERFORMANCE OF HSS DRILLS WHEN DRILLING COMMERCIALLY PURE MOLYBDENUM
Authors: Hüseyin GÖKÇE, Mehtap YAVUZ, İbrahim ÇİFTÇİ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:61-70
DOI: x
Viewed: (35) times
Abstract | Full Text| PDF

Research Article
Title: MINIMAL INTUITIONISTIC OPEN AND MAXIMAL INTUITIONISTIC OPEN SETS
Authors: Esra DALAN YILDIRIM, Ayşegül ÇAKSU GÜLER, Oya BEDRE ÖZBAKIR
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:481-490
DOI: x
Viewed: (336) times
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Research Article
Title: OPTIMIZATION OF COLOUR PIGMENTS REMOVAL FROM PALM OIL USING ACTIVATED OGBUNIKE KAOLINITE
Authors: Ikechukwu Abuchi NNANWUBE, Vincent Nwoye OKAFOR, John Ifeanyi OBIBUENYI, Okechukwu Dominic ONUKWULI, Regina Obiageli AJEMBA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:253-263
DOI: x
Viewed: (26) times
Abstract | Full Text| PDF

Research Article
Title: INVESTIGATION OF FACTORS AFFECTING CORE COMPRESSIVE STRENGTH AND NON-DESTRUCTIVE TESTING OF CONCRETE
Authors: Nihat KABAY, Fevziye AKÖZ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:171-182
DOI: x
Viewed: (28) times
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Research Article
Title: DETERMINATION OF THE INSTALLATION SITES OF WIND POWER PLANTS WITH SPATIAL ANALYSIS: A MODEL PROPOSAL
Authors: Mehmet KABAK, Gözde TAŞKINÖZ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:441-457
DOI: x
Viewed: (199) times
Abstract | Full Text| PDF

Research Article
Title: APPLICATION OF CRANK-NICOLSON METHOD TO A RANDOM COMPONENT HEAT EQUATION
Authors: Halil ANAÇ, Mehmet MERDAN, Tülay KESEMEN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:475-480
DOI: x
Viewed: (225) times
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Research Article
Title: A COMPARATIVE STUDY ON THE THERMAL PERFORMANCE OF MORTARS WITH DIFFERENT FORMULATIONS
Authors: Nihat KABAY, Ahmet B. KIZILKANAT
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:183-189
DOI: x
Viewed: (27) times
Abstract | Full Text| PDF

Research Article
Title: INVESTIGATION OF CLUTCH HUB STRENGTH WITH VARIOUS GEOMETRIES UNDER VARIABLE TORQUE CONDITIONS
Authors: Alper KARADUMAN, Zübeyir Ramazan AKTAŞGİL, Mehmet Onur GENÇ, Mehmet İhsan KARAMANGİL
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:111-122
DOI: x
Viewed: (40) times
Abstract | Full Text| PDF

Research Article
Title: EVALUATION OF TOOTH PROFILE CHANGES OF SYMMETRIC AND ASYMMETRIC SPUR GEAR FORGING DIES DUE TO SHRINK FIT
Authors: Omer EYERCIOGLU, Gulaga TAS, Mehmet ALADAG
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:71-81
DOI: x
Viewed: (51) times
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Research Article
Title: A DISCRETE ELEMENT MODELING INVESTIGATION OF THE CENTRIFUGAL SEPARATION PROCESS OF BOVINE MILK SOMATIC CELLS
Authors: Orçun EKİN, Yunus ÇERÇİ
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:95-109
DOI: x
Viewed: (29) times
Abstract | Full Text| PDF

Research Article
Title: INVESTIGATION THE MODELING OF GENETIC ALGORITHM BASED VEHICLE POWERTRAIN SYSTEM OPTIMIZATION
Authors: Mehmet Onur GENÇ, Alper KARADUMAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:123-133
DOI: x
Viewed: (39) times
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Research Article
Title: REMOVAL OF METHYLENE BLUE ON ZINC OXIDE NANOPARTICLES: NONLINEAR AND LINEAR ADSORPTION ISOTHERMS AND KINETICS STUDY
Authors: Shahin AHMADI, Chinenye Adaobi IGWEGBE
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:289-303
DOI: x
Viewed: (99) times
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Research Article
Title: SYNTHESIS, CHARACTERIZATION AND THERMAL PROPERTIES OF NEW OXOETHYL ACRYLATE CONTAINING POLYMER
Authors: Nevin ÇANKAYA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:281-288
DOI: x
Viewed: (30) times
Abstract | Full Text| PDF

Research Article
Title: IMPLEMENTATION OF SENSORLESS POSITION DETECTION CIRCUIT WITH FOUR-SWITCH INVERTER TOPOLOGY FOR A PERMANENT MAGNET SYNCHRONOUS MOTOR
Authors: Fatih SEREZ, Burcu ERKMEN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: Regular, Year: 2020, Volume: 38, Issue: 1, (MAR 2020), pp:311-327
DOI: x
Viewed: (93) times
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