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Research Article
Title: Optimizing blockchain scalability: Performance evaluation of consensus algorithms
Authors: Kolli Lalitha KUMARI, P. Lalitha Surya KUMARI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1768-1782
DOI: 10.14744/sigma.2026.2062
Viewed: (11) times
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Research Article
Title: Enhancing groundwater contaminant simulations: Predicting solute concentrations with GP and ANN models
Authors: Pappu KUMAR, Saurabh KUMAR, Uruya WEESAKUL, Apin WORAWIWAT, Anshuman SINGH, Dayanand SHARMA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1783-1798
DOI: 10.14744/sigma.2026.2063
Viewed: (6) times
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Title: A numerical investigation for solving the sir model of covid 19 spread in Türkiye
Authors: Demet ÖZDEK
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1754-1767
DOI: 10.14744/sigma.2026.2061
Viewed: (17) times
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Title: Surface roughness evaluation of copper material processed by single pole magnetic abrasive finishing process: A statistical factorial design study
Authors: Pravin Kumar SINGH, Kheelraj PANDEY, Anoop Kumar SOOD, Ashwani SHARMA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1741-1753
DOI: 10.14744/sigma.2026.2007
Viewed: (16) times
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Title: Deep learning-based fault detection for power transmission ınsulators using a custom-developed UAV platform
Authors: Kartikey PANDEY, JC MOHANTA, Vandana AGRAWAL, Annapurna MOHANTA
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1726-1740
DOI: 10.14744/sigma.2026.2060
Viewed: (13) times
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Title: Effect of switching non-linearities on the common mode current in a PV source transformerless inverter in an on-grid system
Authors: Dilip Kumar ARYA, Mohammed ASIM, Monauwer ALAM, Mohammad Atif SIDDIQUI, Mohd Imran SIDDIQUI
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1714-1725
DOI: 10.14744/sigma.2026.2059
Viewed: (11) times
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Title: Real-time pothole and crack detection for safer roads: A VGG-16 and CNN approach
Authors: Neha TANWAR, Anil V. TURUKMANE
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1700-1713
DOI: 10.14744/sigma.2026.2058
Viewed: (16) times
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Title: Comparison of random search and gradient-based optimization techniques on design improvement of permanent magnet synchronous motor
Authors: İsmail ÖYLEK, Metin VARAN, Ali ERDUMAN, Ahmet ZENGİN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1686-1699
DOI: 10.14744/sigma.2025.00058
Viewed: (635) times
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Title: A novel approach for clean energy production and decarbonization using floating photovoltaic systems: Türkiye case
Authors: Fulya ÖZGÜN, Tamara BAJC, Kemal KOCA, Fatih KARIPOĞLU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1674-1685
DOI: 10.14744/sigma.2026.2057
Viewed: (285) times
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Title: Overview of single-phase-shift dual active bridge converter: operation, analysis, design guidelines and comparison of optimized control strategies
Authors: Mehmet Ali USTA, Unal ORDU
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1646-1673
DOI: 10.14744/sigma.2026.2056
Viewed: (224) times
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Title: Green synthesis of a zeolite from natural extract of Sapindus as a template
Authors: Fairouz MEZIANI, Zoubir BENMAAMAR, Nadji MOULAI-MOSTEFA, Mourad MAKHLOUF
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1635-1645
DOI: 10.14744/sigma.2025.00094
Viewed: (172) times
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Title: Homnormal: A comprehensive R package for testing the homogeneity of variances
Authors: Fikri GÖKPINAR, Esra GÖKPINAR
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1619-1634
DOI: 10.14744/sigma.2025.00061
Viewed: (159) times
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Research Article
Title: Investigation of the usability of modified aSPI and eRDI indexes in Sanliurfa Province and determination of temperature and precipitation trends
Authors: Murat BATAN
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1597-1618
DOI: 10.14744/sigma.2025.1948
Viewed: (113) times
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Research Article
Title: Development and analysis of hybrid sustainable polymer reinforced materials
Authors: Md AHASAN, Alajingi RAMKUMAR, KRKV PRASAD, Ratnala PRASAD, Yarrapragada K S SRAO
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1587-1596
DOI: 10.14744/sigma.2026.2055
Viewed: (129) times
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Research Article
Title: Recognition of audio source recording device using Mel frequency cepstral coefficients and recurrent neural networks
Authors: Venkata Lalitha NARLA, Gulivindala SURESH, D. P. GANGWAR, KRKV PRASAD, Rita Rani BHATTACHARJEE
Journal: Sigma Journal of Engineering and Natural Sciences
Issue: Name: June, Year: 2026, Volume: 44, Issue: 3, (JUN 2026), pp:1572-1586
DOI: 10.14744/sigma.2026.2054
Viewed: (113) times
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