ISSN: 1304-7191 | E-ISSN: 1304-7205
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Volume: 43 Issue: 4 Year: 2025
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1. The utilization of lathe waste as a catalyst for the treatment of landfill leachate in supercritical water conditions
Ekin KIPÇAK , Mesut AKGÜN
DOI: 10.14744/sigma.2023.00097
Abstract Full Text PDF
2. Determinatıon of stress magnification factor in welded joint by experimental and numerical analysis using ultra-high-strength steel
Osman Bahadır ÖZDEN , Barış GÖKÇE
DOI: 10.14744/sigma.2023.00100
Abstract Full Text PDF
3. A comparative study on the machining performance of eco-friendly low-lead and lead-free brass alloys in replacement for leaded ones
Nima ZOGHIPOUR , Emre TAŞCIOĞLU , Ali Özkan KESKİN , Yusuf KAYNAK
DOI: 10.14744/sigma.2023.00107
Abstract Full Text PDF
4. Phase-mismatch third harmonic generation in quantum magnetoplasma
Shiv SINGH , Abhisek Kumar SINGH , Punit KUMAR
DOI: 10.14744/sigma.2024.00053
Abstract
5. Artificial neural network (ANN) approach for lead removal from aqueous solution by agricultural waste derived biochars
Nihan KAYA , Fatma ERDEM
DOI: 10.14744/sigma.2024.00103
Abstract
6. Investigation of seismic behavior of horizontally curved bridges in comparison with equivalent straight bridges accordıng to the AASHTO LRFD specifications
Esra NAMLI , Turgut ÖZTÜRK
DOI: 10.14744/sigma.2024.00116
Abstract
7. Artificial intelligence, machine learning, and deep learning applications in the engineerıng fields – A comprehensive review
Haneen DARWISH , Walaa DARWISH , Hiba DARWISH , Issa W. ALHMOUD , Osamah ALSHRAIDEH
DOI: 10.14744/sigma.2024.00126
Abstract
8. 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
Abstract
9. Evaluation of health care systems using supervised and unsupervised machine learning approaches
Canan BULUT , Tuğba SÖNAL , Dilek KOLCA , Fatih TARLAK
DOI: 10.14744/sigma.2024.00130
Abstract
10. Performance of imputation techniques: A comprehensive simulation study using the transformer model
İsmail YENİLMEZ
DOI: 10.14744/sigma.2024.00131
Abstract
11. Strategic load scheduling in smart home: Leveraging IOT and optimization algorithms for energy cost reduction
Ganesh SHIRSAT , Aniruddha MUKHERJEE , Ankit Kumar SHARMA
DOI: 10.14744/sigma.2024.00132
Abstract
12. Broken rotor bar fault detection in induction motors through power spectral density to image method
Hatice OKUMUŞ , Ebru ERGUN
DOI: 10.14744/sigma.2024.00153
Abstract
13. Heat generation from 32650 cylindrical cell battery pack at various load and speed conditions
Shashank GAWADE , Virendra BHOJWANI , Pradeep PATIL , M. ZUBAIRUDDIN
DOI: 10.14744/sigma.2024.00154
Abstract
14. Assessing the role of circular economy principles in reducing waste by sustainable manufacturing practices: A review
Mustafa M MANSOUR
DOI: 10.14744/sigma.2024.00155
Abstract
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
Abstract
16. Electric bus preference with analytical hierarchy process and grey relational analysis combination in public transportation considering modern trend criteria: Kayseri, Türkiye case study
Aslan İNAN , Huzeyfe KARA
DOI: 10.14744/sigma.2024.00158
Abstract
17. Centralized controller-based on optimal power flow (OPF) algorithm for power management in microgrid systems
Abumuslim KHUJAEV , Abbas UĞURENVER
DOI: 10.14744/sigma.2025.00027
Abstract
18. Cat swarm optimized tumor segmentation and an ensemble predictive model for glioblastoma patient survival
Bhagyalaxmi K , Dwarakanath B
DOI: 10.14744/sigma.2025.00029
Abstract
19. Multi-zone commercial market building HVAC control strategy based on reinforcement learning algorithm models
Ganesh MURADE , Bhanu Pratap SONI , Ankit Kumar SHARMA
DOI: 10.14744/sigma.2025.00051
Abstract
20. A study on numerical solutions of a fractional-order model for car t-cell therapy in leukemia using the laplace-adomian decomposition method
Rezaul KARİM , M. Ali AKBAR , M. A. BKAR PK , Pinakee DEY
DOI: 10.14744/sigma.2025.00053
Abstract
21. Electrokinetic effect on flow of two-phase fluid in a circular tube
Sangeetha J , Ponalagusamy R
DOI: 10.14744/sigma.2025.00054
Abstract
22. Solving multi-depot vehicle routing problem with incoterms: a case study for export logistics
Gokce OZDEN-GURCAN , Suna KOSE
DOI: 10.14744/sigma.2025.00055
Abstract
23. Electricity energy consumption forecasting using LSTM and NAR
Parastou BEHGOUY , Abbas UĞURENVER
DOI: 10.14744/sigma.2025.00056
Abstract
24. Optimization of biogas production from floral waste using co-anaerobic digestion by implementing response surface methodology
Vaishali D. JAYSINGPURE , Moni U. KHOBRAGADE
DOI: 10.14744/sigma.2025.00057
Abstract
25. 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
Abstract
26. Mechanical vibration-assisted enhancement of weldment mechanical properties
Japhia Sudarsan NALLA , Basanta Kumar PALAI , P. Govinda RAO
DOI: 10.14744/sigma.2025.00059
Abstract
27. An exact analysis of chemical reaction and porosity effects for mixed convective magnetohydrodynamics Casson fluid
Nur Fatihah MOD OMAR , Zulkhibri ISMAIL , Rahimah JUSOH , Muhammad Azrin AHMAD , Ahmad Qushairi MOHAMAD
DOI: 10.14744/sigma.2025.00060
Abstract
28. Homnormal: A comprehensive R package for testing the homogeneity of variances
Fikri GÖKPINAR , Esra GÖKPINAR
DOI: 10.14744/sigma.2025.00061
Abstract
29. Analyzing challenges to maximıze the efficiency of industrial processes using carbon capture and hydrogen energy production from methane
Kareem A. ABDELKAREEM , Ahmed El-AWADY
DOI: 10.14744/sigma.2025.00062
Abstract
30. 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
Abstract
31. Biosynthesis of silver nanoparticles using aerial parts of Cardaria draba L.: Phytochemical analysis, characterization, evaluation of antibacterial, cytotoxic on human colon cancer cell line properties and enzyme inhibitory potentials
Ozlem BAKIR BOGA , Esabi BASARAN KURBANOGLU
DOI: 10.14744/sigma.2025.00092
Abstract
32. A review of photovoltaıc plants and battery energy storage systems in terms of power systems stability
Bora ÇAVDAR , Eda KARACA , Hatice OKUMUŞ , Fatih Mehmet NUROĞLU
DOI: 10.14744/sigma.2025.00093
Abstract
33. 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
Abstract
34. Predictive calculation of learning success of the haar cascade model on different objects
Mert DEMİR , Ecem İREN
DOI: 10.14744/sigma.2025.00095
Abstract
35. Recent advancements in refractory materials and digital innovations in precision manufacturing
Mustafa M. MANSOUR
DOI: 10.14744/sigma.2025.00096
Abstract
36. Advancements in energy-efficient routing protocols for wireless sensor networks: A computational intelligence perspective
G. RAJESWARAPPA , Srinivasulu SIRISALA , K. Swapna SUDHA , J David Sukeerthi KUMAR
DOI: 10.14744/sigma.2025.00097
Abstract
37. Energy-efficient static memory architecture for internet of things applications
Deepak GARG , Rupali SINGH
DOI: 10.14744/sigma.2025.00098
Abstract
38. Selection of optimal coating materials for bamboo reinforcement in concrete using entropy-fuzzy TOPSIS model
Vivek PAHUJA , Pradeep Kumar GHOSH , Anil KUMAR
DOI: 10.14744/sigma.2025.00099
Abstract
39. Load demand estimation and prediction models for effective planning and sustainability of microgrid project in rural community
Harrison Oyibo IDAKWO , Lanre OLATOMIWA , Ambafi Garba JAMES , Abubakar Sadiq AHMAD
DOI: 10.14744/sigma.2025.00100
Abstract
40. Optimization of precision machine part manufacturing by integration of grey-taguchi method with principal component analysis
Kübra EROL , Selda KAPAN ULUSOY , Ercan ŞENYIĞIT
DOI: 10.14744/sigma.2025.00101
Abstract
41. A hybrid bit-efficientnet framework for automated detection of skin cancer and monkeypox using dermatoscopic images
Juby MATHEW , Dileepkumar S. R , Ardra B. S.
DOI: 10.14744/sigma.2025.00102
Abstract
42. Exploring transient potential steps on rotating disk electrodes with steady-state concentration profiles in single electron transfer reactions
V. Sreelatha DEVI , K. SARANYA , D. VIJAYABALAN , T. LOGANATHAN , Suresh ML , G. SURESH
DOI: 10.14744/sigma.2025.00103
Abstract
43. Advanced predictive approaches for accident forecasting to enhance road safety
Prasad MANOJ , Kerekoppa Chandrashekar MANJUNATH , Kotagi B PUNITH
DOI: 10.14744/sigma.2025.00104
Abstract
44. Heart disease prediction using machine learning models: Performance analysis and comparisons
Abul Kalam AZAD , Travis ATKISON , A. F. M. Shahen SHAH , Ridwan BELLO , Abdulaziz ALMOUSA
DOI: 10.14744/sigma.2025.00131
Abstract
45. Towards artificial intelligence of things: Unsupervised machine learning approach for foot-type classification
Laith FARHAN , Ziad Qais Al-ABBASI , Ali S. ALHUMAIMA , Waled GHETH
DOI: 10.14744/sigma.2025.00132
Abstract
46. 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
Abstract Full Text PDF
47. Investigation of the effects of weld modeling methods on natural frequency in prestressed and non-prestress modal analysis
Osman Bahadır ÖZDEN , Barış GÖKÇE
DOI: 10.14744/sigma.2025.00134
Abstract
48. Enhancing dynamic performance of turbine-generator systems with optimal SVC control using hybrid CSA-GWO technique in series-compensated networks
Sangeeta BAMBA , S.K. GUPTA
DOI: 10.14744/sigma.2025.00135
Abstract
49. Optimizing textual sentiment recognition through LASSO-based feature selection and ensemble voting technique
Nisha , Rakesh KUMAR
DOI: 10.14744/sigma.2025.00136
Abstract
50. Smart farming: Improved soil classification and yield forecasting using CNNS and machine learning algorithms
Uttam R. PATOLE , Manish SHRIVASTAVA
DOI: 10.14744/sigma.2025.00137
Abstract
51. A review and implementation study of IOT-enabled smart net meter units for solar rooftop PV systems
Akshay PATHARE , Dinesh SETHI
DOI: 10.14744/sigma.2025.00138
Abstract
52. Productivity improvement in manufacturing of furniture using quality function deployment approach
Dhananjay APTE , Prafulla HATTE , Vishal PRADHAN
DOI: 10.14744/sigma.2025.00139
Abstract
53. Evaluation of the effects of sustainable development goals on improvement of air quality in cities
Şahin KORKMAZ , Damla MUSTAFAOĞLU , Zeynep CEYLAN
DOI: 10.14744/sigma.2025.00140
Abstract
54. Investigation of correlation between standard penetration test blow counts and internal friction angles for loess soils
Murat GULEN
DOI: 10.14744/sigma.2025.00141
Abstract
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