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Volume: 43 Issue: 5 Year: 2025
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Volume: 43 Issue: 5 - October 2025

Research Article

1. Simulations and comparisons of the hay and perez models applied in PVsyst software and their effect on energy output
Sara AL-WAISAWY , Hamdiyah S. JASIM , Ahmed Hussein DUHIS
DOI: 10.14744/sigma.2025.00133 Pages : 1439-1450
Abstract Full Text PDF
2. Urban morphology and planning from an entropy perspective: A bibliometric evaluation
Esra BAYAZIT
DOI: 10.14744/sigma.2025.00157 Pages : 1451-1472
Abstract Full Text PDF
3. Broken rotor bar fault detection in induction motors through power spectral density to image method
Hatice OKUMUS , Ebru ERGUN
DOI: 10.14744/sigma.2024.00153 Pages : 1473-1483
Abstract Full Text PDF
4. Cart KNN: A hybrid distance-based pre-pruned classification and regression method for the early diagnosis of Alzheimer’s disease
Pijush DUTTA , Sunita SHARMA , Varun Kumar NOMULA , Gour Gopal JANA , Anubrata MONDAL , Shobhandeb PAUL
DOI: 10.14744/sigma.2025.00147 Pages : 1484-1494
Abstract Full Text PDF
5. On the use of different link functions in gamma-pareto regression model: Simulation and application
Nasir SALEEM , Atif AKBAR , Javaria Ahmad KHAN
DOI: 10.14744/sigma.2025.00148 Pages : 1495-1506
Abstract Full Text PDF
6. Experimental investigation of thermo-hydraulic performance of multi semicircular rib of dimple hybrid channel
Kishor K. DHANDE , Prakash Santosh PATİL , Lalit N. PATİL , Vikash K. AGRAWAL , Atul A. PATİL
DOI: 10.14744/sigma.2025.00148 Pages : 1507-1519
Abstract Full Text PDF
7. Evaluation of the bending fatigue behavior crack propagation in ultrahigh- strength steel's resistance spot welding joints, considering the mechanical properties
Mustafa GOKTAS , Bilge DEMIR , Muhammed ELITAS
DOI: 10.14744/sigma.2025.00149 Pages : 1520-1532
Abstract Full Text PDF
8. Magnetohydrodynamic flow and effects of Soret, Dufour and thermophoresis through a chemically reacting porous stretching plate
Ankur KUMAR SARMA , Dipak SARMA , Sunmoni MUDOI
DOI: 10.14744/sigma.2025.00150 Pages : 1533-1546
Abstract Full Text PDF
9. Trends and future perspectives in wind energy studies: A bibliometric analysis with time-series neural networks
Nihal GENC , Ferdi OZBILGIN , Volkan BASER
DOI: 10.14744/sigma.2025.00151 Pages : 1547-1571
Abstract Full Text PDF
10. Real-time tomato flower estimation using deep learning models for e-agriculture applicatio
Bini D , Pamela D , Shajin PRINCE , K Martin SAGAYAM , Hatıra GÜNERHAN
DOI: 10.14744/sigma.2025.00152 Pages : 1572-1579
Abstract Full Text PDF
11. Classification of ancient coins in archaeology using a novel deep learning approach: Bayesian convolutional neural network
Ebru PEKEL ÖZMEN , Soner ÖZMEN , Mehmet Emre SERTKAYA , Tuncay ÖZCAN , Vedat KELEŞ
DOI: 10.14744/sigma.2025.00153 Pages : 1580-1591
Abstract Full Text PDF
12. Cat swarm optimized tumor segmentation and an ensemble predictive model for glioblastoma patient survival
Bhagyalaxmi K , Dwarakanath B
DOI: 10.14744/sigma.2025.00029 Pages : 1592-1606
Abstract Full Text PDF
13. Examining dimensionality reduction effect of principal component analysis via hierarchical clustering techniques
Yağmur ŞAN , Tolunay GÖÇKEN
DOI: 10.14744/sigma.2025.00154 Pages : 1607-1627
Abstract Full Text PDF
14. To the 90th anniversary of professor Telman A. Aliev
Naila MUSAEVA , Ana MAMMADOVA
DOI: 10.14744/sigma.2025.00154 Pages : 1628-1635
Abstract Full Text PDF
15. A creative combination of time series models for accurate forecastıng of monthly rainfall: A case study in Northeast India
D KARTHIKA , K KARTHIKEYAN
DOI: 10.14744/sigma.2024.00156 Pages : 1636-1650
Abstract Full Text PDF
16. Exploration of Ulam-Hyers stability for a system of fractional integro
Brijendra Kumar CHAURASIYA , Avadhesh KUMAR
DOI: 10.14744/sigma.2025.00155 Pages : 1651-1660
Abstract
17. In-sito co-pyrolysis of tea waste and polypropylene using microwave-assisted pyrolysis: products analysis, energy consumption, and synergy effect
Husam Talib HAMZAH , Sridevi VELURU , Suhair Abdulhadi MAHDI , Thamer Adnan ABDULLAH , M. TUKARAMBAI , Venkata Rao POIBA
DOI: 10.14744/sigma.2025.00063 Pages : 1661-1670
Abstract Full Text PDF
18. An integrative approach to agricultural challenges: Predictive modeling, crop alternatives and automation
Swapnil S. JADHAV , Lalit N. PATIL , Vikas S. PANWAR , Sachin P. JADHAV , Digvijay B. KANASE , Sayali S. JADHAV , Neeraj D. PATEL , Khushi V. SALI , Srushti M. JOSHI , Ruchi N. NAGWANSHI
DOI: 10.14744/sigma.2025.00156 Pages : 1671-1690
Abstract Full Text PDF
19. Unbiased weighted least squares estimation of Weibull modulus with small samples
Burak BİRGÖREN
DOI: 10.14744/sigma.2025.00158 Pages : 1691-1700
Abstract Full Text PDF
20. Designing of triple rings metasurface based perfect absorber for C–band and X–band applications
Jigar M. PATEL , Rahul D. MEHTA
DOI: 10.14744/sigma.2025.00159 Pages : 1701-1711
Abstract Full Text PDF
21. The effects of using lithium on biochemical factors of urinary beta-2 microglobulin, creatinine and urea serum in chronic bipolar patients
Seyed Reza MOMENI SHIDEH , Amireh Ebrahimi MOGHADAM , Zainab WETWET , Hayder Abbas Hussein AL MAHDI
DOI: 10.14744/sigma.2025.00160 Pages : 1712-1719
Abstract Full Text PDF
22. Mathematical analysis of fractional order Covid 19 epidemic model
Pınar AÇIKGÖZ , Mehmet MERDAN
DOI: 10.14744/sigma.2025.00161 Pages : 1720-1732
Abstract Full Text PDF
23. Global solar radiation prediction using machine learning approaches
M. MOHANDES , Hilal H. NUHA , Satria Akbar MUGITAMA , S. REHMAN , A. AL-SHAILKHI
DOI: 10.14744/sigma.2024.00128 Pages : 1733-1744
Abstract Full Text PDF
24. Dynamic water monitoring and management system using labview and machine learning
Rupali DESHMUKH , Rhea GOMEZ , Pramod GARHWAL , Disha PATIL , Nilaj DESHMUKH
DOI: 10.14744/sigma.2025.00161 Pages : 1745-1758
Abstract Full Text PDF
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