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Volume: 40, Issue Number: 1

Volume: 40, Issue: 1 (20 Articles)

Research Article
Title: EVALUATION OF THE PERFORMANCE OF MOMENT RESISTING STEEL FRAMES UNDER NEAR FIELD AND FAR FIELD EARTHQUAKES BASED ON ENERGY CONCEPTION
Authors: Hadi FAGHIHMALEKI, Mohammad SAYADI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:1-8
DOI: 10.14744/sigma.2022.00001
Viewed: (54) times
Abstract | Full Text| PDF

Research Article
Title: BAYESIAN ESTIMATION FOR TOPP-LEONE DISTRIBUTION USING PROGRESSIVELY CENSORED DATA AND ASYMMETRIC LOSS FUNCTIONS
Authors: İlhan USTA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:9-26
DOI: 10.14744/sigma.2022.00002
Viewed: (39) times
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Research Article
Title: IMAGE PROCESSING BASED PACKAGE VOLUME MEASUREMENT SYSTEM USING KINECT SENSOR
Authors: Hasan OCAK , Gürkan KÜÇÜKYILDIZ , Suat KARAKAYA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:27-44
DOI: 10.14744/sigma.2022.00003
Viewed: (36) times
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Research Article
Title: COMPARISON OF POST AND IRIS SUBSTRATE INTEGRATED WAVEGUIDE BAND-PASS FILTERS FOR X-BAND APPLICATIONS
Authors: Hammam BANDAR, Nurhan TÜRKER TOKAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:45-56
DOI: 10.14744/sigma.2022.00004
Viewed: (50) times
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Research Article
Title: STUDIES ON MISCIBILITY OF POLYETHERIMIDE/POLYSTYRENE BLENDS
Authors: Birol IŞIK , Fatih ÇAKAR, Özlem CANKURTARAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:57-62
DOI: 10.14744/sigma.2022.00005
Viewed: (46) times
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Research Article
Title: COMPARATIVE SOLUTION APPROACH WITH QUADRATIC AND GENETIC PROGRAMMING TO MULTI-OBJECTIVE HEALTHCARE FACILITY LOCATION PROBLEM
Authors: Bahadır GÜLSÜN, Pınar MİÇ, Mert EDALI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:63-78
DOI: 10.14744/sigma.2022.00006
Viewed: (209) times
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Research Article
Title: GENOCCHI POLYNOMIAL METHOD FOR THE MULTITERM VARIABLE-ORDER FRACTIONAL DIFFERENTIAL EQUATIONS
Authors: Sadiye Nergis TURAL POLAT, Arzu TURAN DINCEL
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:79-84
DOI: 10.14744/sigma.2021.00032
Viewed: (201) times
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Research Article
Title: THE MACHINE LEARNING APPROACH FOR PREDICTING THE NUMBER OF INTENSIVE CARE, INTUBATED PATIENTS AND DEATH: THE COVID-19 PANDEMIC IN TURKEY
Authors: Pınar CİHAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:85-94
DOI: 10.14744/sigma.2022.00007
Viewed: (204) times
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Research Article
Title: INVESTIGATION OF THE MACHINING PERFORMANCE OF FERRITIC DUCTILE CAST IRON IN WEDM USING RESPONSE SURFACE METHODOLOGY
Authors: Kutay AYDIN, Levent UĞUR, Salih GÜVERCİN, Ferhat GÜL
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:95-107
DOI: 10.14744/sigma.2022.00008
Viewed: (204) times
Abstract | Full Text| PDF

Research Article
Title: OPTIMIZATION OF DRONES COMMUNICATION BY USING META-HEURISTIC OPTIMIZATION ALGORITHMS
Authors: A. F. M. Shahen SHAH, Muhammet Ali KARABULUT
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:108-117
DOI: 10.14744/sigma.2022.00009
Viewed: (211) times
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Research Article
Title: WASTE SLUDGE DISINTEGRATION AND BOUND WATER REDUCTION BY CHEMICAL OXIDATION: A COMPARATIVE STUDY
Authors: Hanife SARI ERKAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:118-131
DOI: 10.14744/sigma.2022.00010
Viewed: (204) times
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Research Article
Title: GREEN SYNTHESIS of BT-Fe3O4 NANOCOMPOSITE USING Camellia sinensis LEAVES EXTRACT: CHARACTERIZATION, NPEO ADSORPTION EXPERIMENTS, ISOTHERMS, AND KINETICS
Authors: Pınar BELİBAĞLI, Yağmur UYSAL
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:132-143
DOI: 10.14744/sigma.2022.00011
Viewed: (214) times
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Research Article
Title: A WEATHER-BASED FORECASTING SYSTEM FOR THE SOLAR POWER PLANTS IN THE KONYA REGION
Authors: Cankat YAVUZ, Ahmet Reha BOTSALI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:144-149
DOI: 10.14744/sigma.2022.00012
Viewed: (219) times
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Research Article
Title: A SINE-COSINE WAVELET METHOD FOR THE APPROXIMATION SOLUTIONS OF THE FRACTIONAL BAGLEY-TORVIK EQUATION
Authors: Arzu TURAN DİNCEL
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:150-154
DOI: 10.14744/sigma.2021.00033
Viewed: (222) times
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Research Article
Title: STRENGTH AND ABRASION PERFORMANCE OF RECYCLED AGGREGATE BASED GEOPOLYMER CONCRETE
Authors: Asfaw Mekonnen LAKEW , Mukhallad M. Al-MASHHADANI, Orhan CANPOLAT
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:155-161
DOI: 10.14744/sigma.2021.00021
Viewed: (230) times
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Research Article
Title: A NEW NONLINEAR HYBRID TECHNIQUE WITH FIXED AND ADAPTIVE STEP-SIZE APPROACHES
Authors: Amanullah SOOMRO, Sania QURESHI, Asif Ali SHAIKH
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:162-178
DOI: 10.14744/sigma.2022.00013
Viewed: (291) times
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Research Article
Title: A COMPREHENSIVE SURVEY OF DUAL-GENERALIZED COMPLEX FIBONACCI AND LUCAS NUMBERS
Authors: Nurten GÜRSES, Gülsüm Yeliz ŞENTÜRK, Salim YÜCE
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:179-187
DOI: 10.14744/sigma.2022.00014
Viewed: (285) times
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Research Article
Title: A NEW METHOD FOR CONVERSION BETWEEN PYTHAGOREAN FUZZY SETS AND INTUITIONISTIC FUZZY SETS
Authors: Gürkan IŞIK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:188-195
DOI: 10.14744/sigma.2022.00015
Viewed: (313) times
Abstract | Full Text| PDF

Research Article
Title: MODELING AND ANALYSIS OF EFFECTIVE FACTORS IN THE OUTSOURCING OF R&D PROJECTS BY SEM AND ISM APPROACHES: A CASE STUDY OF "IRANIAN AVIATION INDUSTRIES ORGANIZATION"
Authors: Ghasem TAGHIZADEH, Hassan TORABI, Morteza RAJABZADEH
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:196-207
DOI: 10.14744/sigma.2022.00016
Viewed: (299) times
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Research Article
Title: IMPORTANT FACTORS AFFECTING THE TRANSMISSION RATE OF COVID-19 IN G20 AND EU
Authors: Ozan KOCADAĞLI, Ali Mertcan KÖSE, Neslihan GÖKMEN INAN, Ezgi ÖZER, Aylin YAMAN KOCADAĞLI, Ecem BOSTANCI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: March, Year: 2022, Volume: 40, Issue: 1, (MAR 2022), pp:208-218
DOI: 10.14744/sigma.2022.00017
Viewed: (428) times
Abstract | Full Text| PDF

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