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  • Open Access

    ARTICLE

    A Comparative Study of State-of-the-Art Meshless Methods for Flow and Transport Simulation in Porous Media

    T. I. Eldho1,*, Sanjukta Das1, Aatish Anshuman2, Tinesh Pathania3

    CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.2, 2026, DOI:10.32604/cmes.2026.078705 - 27 May 2026

    Abstract In recent years, meshless methods have been increasingly applied to the simulation of various engineering problems due to their inherent advantages over traditional mesh-based approaches, including greater flexibility, independence from predefined meshing, simpler adaptive analysis, improved automation, and suitability for complex problems. Several meshless methods have been used for porous media simulation, and are broadly categorized into collocation, global weak form and local weak form methods. In this study, a comprehensive comparison of the applicability of these three categories of meshless methods for simulating coupled flow and transport problems in porous media is presented. The… More > Graphic Abstract

    A Comparative Study of State-of-the-Art Meshless Methods for Flow and Transport Simulation in Porous Media

  • Open Access

    ARTICLE

    Ensemble Machine Learning Framework for PFAS Risk Screening in Public Water Systems

    Menahil Rahman1, Waqas Ishtiaq2, Amerah Alabrah3,*, Arif Mehmood4, Rana Faraz Ahmed4, Iqra Khalid5, Farhan Amin6,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.2, 2026, DOI:10.32604/cmes.2026.078549 - 27 May 2026

    Abstract Access to safe drinking water is a fundamental determinant of global health. The presence of contaminated water affects the citizens’ health. Per- and polyfluoroalkyl substances (PFAS) are often referred to as forever chemicals. They pose a persistent and growing threat to drinking water. In the literature, machine learning methods are used to identify the forever chemicals in water. However, traditional methods are not efficient and scalable. Thus, to solve this issue. This study develops a large-scale machine-learning framework for PFAS risk screening in US public water systems. The proposed framework incorporates data ingestion, preprocessing, and More >

  • Open Access

    ARTICLE

    Water Stress Mitigation in Melon: Effectiveness of Stress Attenuating Agents and Selection of Tolerant Cultivars

    Emerson de Medeiros de Sousa1,#, Salvador Barros Torres2,#, Marciana Bizerra de Morais3,#, Clarisse Pereira Benedito2, Kleane Targino Oliveira Pereira2, Moadir de Sousa Leite2, Maria Valdiglezia de Mesquita Arruda2, Jéssica Christie Dantas de Oliveira Costa2, Roseane Rodrigues de Oliveira2, Giovanna Dias de Sousa2, Cynthia Cavalcanti de Albuquerque3, Marco Porceddu4, Gianluigi Bacchetta4, Francisco Vanies da Silva Sá5,*

    Phyton-International Journal of Experimental Botany, Vol.95, No.5, 2026, DOI:10.32604/phyton.2026.078410 - 27 May 2026

    Abstract Semiarid regions are frequently affected by low water availability, which hinders the development of horticultural species such as melon (Cucumis melo L.). In this context, techniques that enhance drought tolerance are essential for more effective crop management. This study aimed to evaluate the tolerance and antioxidant activity of different melon cultivars using seed pre-treatment with stress-attenuating agents. The experiment was conducted in two stages, both arranged in a completely randomized design with four replicates of 50 seeds. In the first stage, a 3 × 5 factorial scheme was used, combining three levels of water deficit (0.0,… More >

  • Open Access

    ARTICLE

    Integrated Quality Control and Evaluation Framework for the R&D Process of Waterflooding Sandstone Reservoir Numerical Simulators

    Zenghua Zhang1,2, Yanchun Su1,2, Zhijie Wei1,2, Wensheng Zhou1,2, Chen Liu1,2, Engao Tang1,2, Yanhong Wang3, Shanshan Li3, Rui Zhang3,*

    Energy Engineering, Vol.123, No.6, 2026, DOI:10.32604/ee.2026.077070 - 27 May 2026

    Abstract Addressing the complexity of quality evaluation during the R&D phase of the waterflooding sandstone reservoir numerical simulator (OSIM), this study establishes a comprehensive assessment framework driven by client-side requirements. The novelty of this work lies in the integration of a client-driven 146-indicator hierarchy specifically tailored for iterative simulator R&D. First, a hierarchical software quality evaluation model is constructed, encompassing four primary dimensions and 146 secondary indicators. To mitigate the subjectivity inherent in traditional weight assignment, the Fuzzy Best-Worst Method (FBWM) is employed to determine indicator weights. Subsequently, the Technique for Order Preference by Similarity to… More >

  • Open Access

    ARTICLE

    Identification of Groundwater Potential Sites Using GIS and RS Techniques: Case Study of Timergara, Khyber Pakhtunkhwa, Pakistan

    Fayaz Ullah Shinwari1, Mumtaz Ali Khan2,*, Saad Khan3,4, Rizwan Niaz5, Mansour Almazroui6,7

    Revue Internationale de Géomatique, Vol.35, pp. 273-290, 2026, DOI:10.32604/rig.2026.080586 - 21 May 2026

    Abstract Groundwater is an essential resource contributing substantially to the annual total water supply. It enables agricultural irrigation and provides billions of people with their main source of drinking water. But overuse of groundwater has decreased its supply and, in certain places, resulted in soil subsidence. In the complex hydrogeological terrain of Timergara, traditional groundwater exploration is challenging and costly, requiring more efficient mapping approaches. Groundwater recharge potential zones must be assessed in order to guarantee sustainable groundwater management. This study uses Remote Sensing (RS) and Geographic Information System (GIS) methodologies to evaluate groundwater potential sites… More >

  • Open Access

    REVIEW

    Advances, Challenges, and Future Perspectives in Surface Water Quality Monitoring Using Remote Sensing and GIS: A Structured Literature Review

    Jhoreene Julian1, Jerome Gacu2,3,4,*

    Revue Internationale de Géomatique, Vol.35, pp. 205-247, 2026, DOI:10.32604/rig.2026.078160 - 19 May 2026

    Abstract Surface water quality is a sensitive global environmental issue, as it is important for long-term economic development and environmental sustainability. Due to population growth, urbanization, and the effects of climate change, the degradation of surface water quality cannot be avoided. Therefore, a more accurate, continuous, and operational monitoring of water quality is highly significant. This study aims to systematically review and synthesize existing literature on the technological advancement, challenges, and future directions of Remote Sensing (RS) and Geographic Information System (GIS) techniques in surface water quality monitoring. Following PRISMA guidelines, a structured literature search of… More >

  • Open Access

    ARTICLE

    ArtFlow: Flow-Based Watermarking for High-Quality Artwork Images Protection

    Yuanjing Luo1,2,#, Xichen Tan1,#, Yinuo Jiang1, Zhiping Cai1,*

    CMC-Computers, Materials & Continua, Vol.88, No.1, 2026, DOI:10.32604/cmc.2026.077803 - 08 May 2026

    Abstract With increasing artwork plagiarism incidents, the necessity of using digital watermarking technology for high-quality artwork copyright protection is evident. Current digital watermarking methods are limited in imperceptibility and robustness. To address this, based on comprehensive copyright protection research, we develop a novel watermark framework named ArtFlow, using Invertible Neural Networks (INN). Our framework treats watermark embedding and recovery as inverse image transformations, implemented through forward and reverse processes of INN. To ensure high-quality watermark embedding, we utilize frequency domain transformations and attention mechanisms to guide the watermark into high-frequency areas of the image that have More >

  • Open Access

    ARTICLE

    GIS and Remote Sensing-Based Spatial Analysis of Hydrogeochemical Degradation in the Darb El-Arbaein Aquifer System, Egypt

    Mohamed ElKashouty1,*, Mohd Yawar Ali Khan1,*, Samyah Salem Refadah2

    Revue Internationale de Géomatique, Vol.35, pp. 161-177, 2026, DOI:10.32604/rig.2026.079702 - 30 April 2026

    Abstract Water scarcity is a significant challenge in arid and semi-arid countries, underscoring the importance of thoroughly studying groundwater resources. Egypt, especially in the Darb El-Arbaein region of the southern Western Desert, faces various water challenges and relies primarily on groundwater from the Nubian Sandstone aquifer. Proper management of this groundwater is essential for addressing these challenges. The study examines the spatial and temporal variations in the hydrogeochemistry of the Nubian sandstone aquifer. Data collected from the aquifer’s monitoring network include key hydrogeochemical parameters, such as total dissolved solid (TDS) and piezometric heads, over different periods.… More >

  • Open Access

    ARTICLE

    Evaluation of Hydraulic Losses and Photovoltaic Performance in the Design of Solar-Powered Irrigation and Domestic Water Supply Systems for Rural Rwanda

    Aimable Ngendahayo1,*, Adrià Junyent-Ferré2, Joan Marc Rodriguez Bernuz3

    Energy Engineering, Vol.123, No.5, 2026, DOI:10.32604/ee.2026.077594 - 27 April 2026

    Abstract Bugesera, a historically drought-prone region in Rwanda, is undergoing transformation through investment in modern irrigation and sustainable agricultural practices. However, extending the national electrical grid to numerous dispersed smallholder farms poses a major challenge. The persistent water scarcity and rising conventional energy costs necessitate the development of innovative and sustainable solutions. This study investigates the use of photovoltaic (PV) pumping systems as a green energy alternative for off-grid rural areas, supporting both agricultural irrigation and domestic water supply. A model system serving five one-hectare market-gardening plots and 25 inhabitants was analyzed, with a total daily… More >

  • Open Access

    ARTICLE

    Data-Driven and Physics-Informed Surrogate Modeling for Heat Conduction in the Pressurizer Wall of Pressurized Water Reactors under Severe Accident Scenarios

    Fabiano Thulu, Zeyun Wu*

    Energy Engineering, Vol.123, No.5, 2026, DOI:10.32604/ee.2026.076328 - 27 April 2026

    Abstract Real-time prediction of temperature distribution in the pressurizer walls of Pressurized Water Reactors (PWRs) during severe accidents, such as Station Blackout (SBO) and Loss-of-Coolant Accident (LOCA) is vital for structural integrity assessment. However, conventional thermal-hydraulic simulations used for such predictions are computationally intensive, limiting their applicability for real-time analysis. This study develops and compares three surrogate models: Polynomial Regression, Deep Neural Network (DNN), and a Physics-Informed Neural Network (PINN). Thermal-hydraulic simulation data generated by RELAP5-3D are integrated with physics-constrained learning techniques to model transient heat conduction in the pressurizer wall. The internal wall temperature evolution… More >

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