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Welcome to Sigma Journal of Engineering and Natural Sciences

Journal Description: Our journal is supported by Yildiz Technical University officially, and is a blind peer-reviewed free open-access journal, published quarterly (March-June-September-December). 

 

Publisher: Yildiz Technical University

 

Editor-in-Chief: Prof.Dr. Ahmet Selim Dalkılıç, dalkilic@yildiz.edu.tr 

 

E-ISSN Number: 1304-7205 (2004)

P-ISSN Number: 1304-7191 (2004)

 

Aim and Scope: SIGMA Journal of Engineering and Science is aimed at giving a recognized platform to students, researchers, research scholars, teachers, authors and other professionals in the field of research in various Engineering subjects, to publish their original and current research work to a wide, international audience.

 

Average Duration of the First Review Round: 2 months

 

Type of Publications: Research Article, Review Article, Short Communication Paper, Technical Note, Letter to Editor, Invited Paper, Book review.

 

Language of Publication: English

 

Frequency: Quarterly (4 issues per year)

 

Publication Type: Online e-version

 

Average Paper Acceptance Rate: 66% (Rejected: 706, Published and Article-in Press: 1400, 25.11.2021)

 

Most Cited Papers: https://scholar.google.com/citations?authuser=1&user=shyQmI4AAAAJ

 

Paper Submission: Click here in order to submit your paper. Further support is available by emailing to sigma@yildiz.edu.tr.

 

Frequently Asked Questions: https://eds.yildiz.edu.tr/sigma/Announcements/91

 

Postal Address: Yildiz Technical University, Mechanical Engineering Faculty, Department of Mechanical Engineering, Heat and Thermodynamics Division, E1 Bl Kat:2 No:17, Barbaros Bulvari, Yildiz, Besiktas, Istanbul 34349, Turkey.

 

Please read our journal announcements on the left side for the latest news.

 

 

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SIGMA Journal of Engineering and Science is licensed under a Creative Commons Attribution 4.0 International License.

Based on a work at https://eds.yildiz.edu.tr/sigma/

 

         

 

 

                            

                                                 

 

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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: (114) times
Abstract | Full Text| PDF

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: (92) times
Abstract | Full Text| PDF

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: (87) times
Abstract | Full Text| PDF

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: (76) times
Abstract | Full Text| PDF

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: (72) times
Abstract | Full Text| PDF

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1234 Article(s) Found
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