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Volume: 44 Issue: 3 Year: 2026
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Volume: 44 Issue: 3 - 2026

Research Article

1. Study of the physical structure and performance of vertical wind turbines evaluated by bio-mimicry Dipterocarpus alatus, Part 1
Montri LUNGCHAVANON , Kuaanan TECHATO , Woradej MANOSROI , Ekawat RATCHAİ , Suratsavadee Koonlaboon KORKUA
DOI: 10.14744/sigma.2026.2052 Pages : 1561-1571
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2. Recognition of audio source recording device using Mel frequency cepstral coefficients and recurrent neural networks
Venkata Lalitha NARLA , Gulivindala SURESH , D. P. GANGWAR , KRKV PRASAD3 , Rita Rani BHATTACHARJEE
DOI: 10.14744/sigma.2026.2054 Pages : 1572-1586
Abstract Full Text PDF
3. Development and analysis of hybrid sustainable polymer reinforced materials
Md AHASAN , Alajingi RAMKUMAR , KRKV PRASAD , Ratnala PRASAD , Yarrapragada K S SRAO
DOI: 10.14744/sigma.2026.2055 Pages : 1587-1596
Abstract Full Text PDF
4. Investigation of the usability of modified aSPI and eRDI indexes in Sanliurfa Province and determination of temperature and precipitation trends
Murat BATAN
DOI: 10.14744/sigma.2025.1948 Pages : 1597-1618
Abstract Full Text PDF
5. Homnormal: A comprehensive R package for testing the homogeneity of variances
Fikri GÖKPINAR , Esra GÖKPINAR
DOI: 10.14744/sigma.2025.00061 Pages : 1619-1634
Abstract Full Text PDF
6. Green synthesis of a zeolite from natural extract of Sapindus as a template
Fairouz MEZIANI , Zoubir BENMAAMAR , Nadji MOULAI-MOSTEFA , Mourad MAKHLOUF
DOI: 10.14744/sigma.2025.00094 Pages : 1635-1645
Abstract Full Text PDF
7. Overview of single-phase-shift dual active bridge converter: operation, analysis, design guidelines and comparison of optimized control strategies
Mehmet Ali USTA , Unal ORDU
DOI: 10.14744/sigma.2026.2056 Pages : 1646-1673
Abstract Full Text PDF
8. A novel approach for clean energy production and decarbonization using floating photovoltaic systems: Türkiye case
Fulya ÖZGÜN , Tamara BAJC , Kemal KOCA , Fatih KARIPOĞLU
DOI: 10.14744/sigma.2026.2057 Pages : 1674-1685
Abstract Full Text PDF
9. Comparison of random search and gradient-based optimization techniques on design improvement of permanent magnet synchronous motor
İsmail ÖYLEK , Metin VARAN , Ali ERDUMAN , Ahmet ZENGIN
DOI: 10.14744/sigma.2025.00058 Pages : 1686-1699
Abstract Full Text PDF
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