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  • Open Access

    ARTICLE

    A New Normalized Climate Index (U2) for Türkiye: Comparison with Classical Methods

    Erdinç Uslan1,*, Emin Ulugergerli2

    Revue Internationale de Géomatique, Vol.35, pp. 31-51, 2026, DOI:10.32604/rig.2026.075081 - 05 February 2026

    Abstract Climate classification systems are essential tools for analyzing regional climatic behavior, assessing long-term aridity patterns, and evaluating the impacts of climate change on water resources and ecosystem resilience. This study introduces a new Climate Classification Method based on uniform and unitless variables, referred to as the U2 Climate Classification (U2CC). The proposed U2 Index was designed to overcome structural limitations of the classical De Martonne (1942) and Erinç (1949) indices, which rely on raw precipitation–temperature ratios and are sensitive to extreme values, particularly subzero temperatures. The U2 methodology consisted of two key steps: (i) normalization… More >

  • Open Access

    ARTICLE

    Exact Computer Modeling of Photovoltaic Sources with Lambert-W Explicit Solvers for Real-Time Emulation and Controller Verification

    Abdulaziz Almalaq1, Ambe Harrison2,*, Ibrahim Alsaleh1, Abdullah Alassaf1, Mashari Alangari1

    CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.1, 2026, DOI:10.32604/cmes.2025.074815 - 29 January 2026

    Abstract We present a computer-modeling framework for photovoltaic (PV) source emulation that preserves the exact single-diode physics while enabling iteration-free, real-time evaluation. We derive two closed-form explicit solvers based on the Lambert W function: a voltage-driven V-Lambert solver for high-fidelity I–V computation and a resistance-driven R-Lambert solver designed for seamless integration in a closed-loop PV emulator. Unlike Taylor-linearized explicit models, our proposed formulation retains the exponential nonlinearity of the PV equations. It employs a numerically stable analytical evaluation that eliminates the need for lookup tables and root-finding, all while maintaining limited computational costs and a small… More >

  • Open Access

    ARTICLE

    A Numerical Study of the Double Diffusivity with Convective and Radiative Turbulent Flow in a Greenhouse with Humidity Sources

    J. Serrano-Arellano1, M.I. Hernández-López1, J. L. Chávez-Servín2, E. V. Macias-Melo3, K. M. Aguilar-Castro3,*

    Frontiers in Heat and Mass Transfer, Vol.23, No.6, pp. 1741-1765, 2025, DOI:10.32604/fhmt.2025.069560 - 31 December 2025

    Abstract A numerical study analyzed double diffusion caused by convective and radiative heat transfer in a greenhouse with and without internal humidity sources. Two cases were examined: one considering temperature and mass concentration gradients on vertical walls and another incorporating internal humidity sources, enhancing convective and diffusive flows. Four configurations were analyzed by varying the length of the greenhouse, and the Rayleigh number was calculated over a range from 2.29 × 1010 to 6.07 × 1012. Simulations modeled the greenhouse interior six times a day (8:00 a.m. to 7:00 p.m.), accounting for external temperature, humidity, and solar More > Graphic Abstract

    A Numerical Study of the Double Diffusivity with Convective and Radiative Turbulent Flow in a Greenhouse with Humidity Sources

  • Open Access

    REVIEW

    Transforming Sawdust Waste into Renewable Energy Resources: A Comprehensive Review on Sustainable Bio-Oil and Biochar Production via Thermochemical Processes

    Hauwau Kaoje1,2, Adekunle Adeleke2,3,*, Esther Anosike-Francis2,3, Seun Jesuloluwa2,3, Temitayo Ogedengbe2,3, Hauwa Rasheed2, Jude Okolie4

    Journal of Renewable Materials, Vol.13, No.12, pp. 2375-2430, 2025, DOI:10.32604/jrm.2025.02025-0109 - 23 December 2025

    Abstract The increasing need for sustainable energy and the environmental impacts of reliance on fossil fuels have sparked greater interest in biomass as a renewable energy source. This review provides an in-depth assessment of bio-oil and biochar generation through the pyrolysis of sawdust, a significant variety of lignocellulosic biomass. The paper investigates different thermochemical conversion methods, including fast, slow, catalytic, flash, and co-pyrolysis, while emphasizing their operational parameters, reactor designs, and effects on product yields. The influence of temperature, heating rate, and catalysts on enhancing the quality and quantity of bio-oil and biochar is thoroughly analyzed. More > Graphic Abstract

    Transforming Sawdust Waste into Renewable Energy Resources: A Comprehensive Review on Sustainable Bio-Oil and Biochar Production via Thermochemical Processes

  • Open Access

    ARTICLE

    Psychometric Properties of the Thai Version of the Weight Stigma Exposure Inventory (WeSEI)

    Yen-Chun Wang1, Kamolthip Ruckwongpatr2, Amornthep Jankaew3, Apiradee Pimsen4, Chirawat Paratthakonkun5, I-Hua Chen6, Jung-Sheng Chen7, Hsin-Chi Tsai8,9,*, Nadia Bevan10, Chung-Ying Lin1,11,12,13,*

    International Journal of Mental Health Promotion, Vol.27, No.11, pp. 1645-1661, 2025, DOI:10.32604/ijmhp.2025.071081 - 28 November 2025

    Abstract Background: Weight stigma is prevalent and has multiple sources, which have significant effects on individual, social, physical, and psychological health. This study evaluated the psychometric properties of the Thai version of WeSEI to provide a valid tool to assess weight stigma in Thai young adults. Methods: A cross-sectional online survey recruited 517 Thai university students from October 2024 to May 2025. All participants completed demographic information and standardized self-reported instruments, including WeSEI, Depression, Anxiety, and Stress scale 21 (DASS-21), Weight Self-Stigma Questionnaire (WSSQ), and Perceived Weight Stigma Scale (PWSS). The psychometric properties of the Thai version… More >

  • Open Access

    ARTICLE

    Phase-Level Analysis and Forecasting of System Resources in Edge Device Cryptographic Algorithms

    Ehan Sohn1, Sangmyung Lee1, Sunggon Kim1, Kiwook Sohn1, Manish Kumar2, Yongseok Son3,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.2, pp. 2761-2785, 2025, DOI:10.32604/cmes.2025.070888 - 26 November 2025

    Abstract With the accelerated growth of the Internet of Things (IoT), real-time data processing on edge devices is increasingly important for reducing overhead and enhancing security by keeping sensitive data local. Since these devices often handle personal information under limited resources, cryptographic algorithms must be executed efficiently. Their computational characteristics strongly affect system performance, making it necessary to analyze resource impact and predict usage under diverse configurations. In this paper, we analyze the phase-level resource usage of AES variants, ChaCha20, ECC, and RSA on an edge device and develop a prediction model. We apply these algorithms… More >

  • Open Access

    REVIEW

    A Review of Modern Strategies for Enhancing Power Quality and Hosting Capacity in Renewable-Integrated Grids: From Conventional Devices to AI-Based Solutions

    Adel A.Abou El-Ela1, Ragab A. El-Sehiemy2,3,4,*, Abdallah Nazih1, Asmaa A. Mubarak5, Eman S. Ali1

    CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.2, pp. 1349-1388, 2025, DOI:10.32604/cmes.2025.069507 - 26 November 2025

    Abstract Distribution systems face significant challenges in maintaining power quality issues and maximizing renewable energy hosting capacity due to the increased level of photovoltaic (PV) systems integration associated with varying loading and climate conditions. This paper provides a comprehensive overview on the exit strategies to enhance distribution system operation, with a focus on harmonic mitigation, voltage regulation, power factor correction, and optimization techniques. The impact of passive and active filters, custom power devices such as dynamic voltage restorers (DVRs) and static synchronous compensators (STATCOMs), and grid modernization technologies on power quality is examined. Additionally, this paper… More >

  • Open Access

    ARTICLE

    Mindfulness and Mental Health of College Athletes: The Role of Stress Coping and Burnout

    Junhe Cui1, Kyungsik Kim1,*, Sihong Sui1,*, Zixiang Zhou2, Gong Cheng1

    International Journal of Mental Health Promotion, Vol.27, No.10, pp. 1553-1575, 2025, DOI:10.32604/ijmhp.2025.068523 - 31 October 2025

    Abstract Background: Psychological stress from academic and athletic demands adversely affects college athletes’ mental health, the underlying mechanisms of this relationship remain insufficiently understood. Therefore, this study focuses on the Chinese college athletes and explores the relationship among mindfulness, stress coping, burnout, and mental health. Methods: The study used a sample of 500 student athletes from five higher sports colleges in China, collected data on various variables using standardized psychometric instruments, and analyzed the path relationships and mediating effects among the variables using structural equation modeling (SEM) and bootstrap methods. Results: Mindfulness significantly improved stress coping ability… More >

  • Open Access

    ARTICLE

    RAPD Marker Associations and Antioxidant Enzyme Responses of Houttuynia cordata Germplasms under Lead Stress

    Yi Yan1,2,#, Min He1,2,#, Feifeng Mao3, Xinyu Zhang4, Liyu Wang5, Jingwei Li1,2,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.10, pp. 3003-3021, 2025, DOI:10.32604/phyton.2025.069166 - 29 October 2025

    Abstract Houttuynia cordata, a characteristic edible and medicinal plant in southwestern China, is prone to absorbing lead (Pb2+). Excessive consumption may lead to Pb2+ accumulation in the human body, which has been linked to serious health risks such as neurotoxicity, kidney damage, anemia, and developmental disorders, particularly in children. Therefore, the development of molecular markers associated with Pb2+ uptake and the investigation of the plant’s physiological responses to Pb2+ pollution are of great significance. In this study, 72 H. cordata germplasms were evaluated for Pb2+ accumulation after exogenous Pb2+ treatment. A significant variation in Pb2+ content was observed among the germplasms, indicating… More >

  • Open Access

    ARTICLE

    The effect of technostress on professional identity among online international language teachers: Growth mindset mediation and technical support moderation

    Zhiyong Zhu1, Jinhao Li1, Bo Hu1,*, Hong Chen2

    Journal of Psychology in Africa, Vol.35, No.5, pp. 587-597, 2025, DOI:10.32604/jpa.2025.066359 - 24 October 2025

    Abstract Grounded in the Job Demands-Resources (JD-R) model, this study investigates the relationship between technostress and professional identity among 313 online international language teachers (82.11% female; 77.64% aged 24 and above; 63.87% with postgraduate education). It further examines the mediating role of growth mindset and the moderating effect of technical support. The results indicate that higher levels of technostress are associated with lower levels of professional identity. Growth mindset partially mediates this relationship: elevated technostress not only directly weakens teachers’ professional identity but also indirectly reduces it by undermining their growth mindset. Moreover, technical support significantly More >

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