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  • Open Access

    ARTICLE

    Dynamic Weighted Spherical Particle Swarm Optimization for UAV Path Planning in Complex Environments

    Rui Yao1,2, Yuye Wang1,2,*, Fei Yu1,2,3,*, Hongrun Wu1,2, Zhenya Diao1,2

    CMC-Computers, Materials & Continua, Vol.87, No.2, 2026, DOI:10.32604/cmc.2026.073861 - 12 March 2026

    Abstract Path planning for Unmanned Aerial Vehicles (UAVs) in complex environments presents several challenges. Traditional algorithms often struggle with the complexity of high-dimensional search spaces, leading to inefficiencies. Additionally, the non-linear nature of cost functions can cause algorithms to become trapped in local optima. Furthermore, there is often a lack of adequate consideration for real-world constraints, for example, due to the necessity for obstacle avoidance or because of the restrictions of flight safety. To address the aforementioned issues, this paper proposes a dynamic weighted spherical particle swarm optimization (DW-SPSO) algorithm. The algorithm adopts a dual Sigmoid-based More >

  • Open Access

    ARTICLE

    Heterogeneous Computing Power Scheduling Method Based on Distributed Deep Reinforcement Learning in Cloud-Edge-End Environments

    Jinwei Mao1,2, Wang Luo1,2,*, Jiangtao Xu3, Daohua Zhu3, Wei Liang3, Zhechen Huang3, Bao Feng1,2, Shuang Yang1,2

    CMC-Computers, Materials & Continua, Vol.87, No.2, 2026, DOI:10.32604/cmc.2026.072505 - 12 March 2026

    Abstract With the rapid development of power Internet of Things (IoT) scenarios such as smart factories and smart homes, numerous intelligent terminal devices and real-time interactive applications impose higher demands on computing latency and resource supply efficiency. Multi-access edge computing technology deploys cloud computing capabilities at the network edge; constructs distributed computing nodes and multi-access systems and offers infrastructure support for services with low latency and high reliability. Existing research relies on a strong assumption that the environmental state is fully observable and fails to thoroughly consider the continuous time-varying features of edge server load fluctuations,… More >

  • Open Access

    ARTICLE

    Thermal Performance and Design Optimization of a High-Concentration Photovoltaic System for Arid Environments

    Taher Maatallah1,*, Nagmeldeen A. M. Hassanain1, Gaydaa Al Zohbi2, Farooq Saeed1, Muhammad Saleem1, Nassir Hariri1, Mohamed Elsharawy3, Tapas Kumar Mallick1,4, Fahad Gallab Al-Amri1

    Frontiers in Heat and Mass Transfer, Vol.24, No.1, 2026, DOI:10.32604/fhmt.2026.075763 - 28 February 2026

    Abstract High-concentration photovoltaic (HCPV) systems present significant thermal management challenges due to the intense heat fluxes generated under concentrated solar irradiation, especially in arid environments. Effective heat dissipation is critical to prevent performance degradation and structural failure. This study investigates the thermal performance and design optimization of an enhanced HCPV module, integrating numerical, analytical, and experimental methods. A coupled optical-thermal-electrical model was developed to simulate ray tracing, heat transfer, and temperature-dependent electrical behaviour, with predictions validated under real-world desert conditions. Compared to a baseline commercial module operating at 106°C, the optimized design achieved a peak temperature More >

  • Open Access

    ARTICLE

    Evaporation of a CO2 Droplet in a High Temperature, Supercritical Pressure Environment

    Yendoubouame Lare1,2,*, Koffi Sagna1,2, Amah Séna d’Almeida3

    Frontiers in Heat and Mass Transfer, Vol.24, No.1, 2026, DOI:10.32604/fhmt.2025.074506 - 28 February 2026

    Abstract This study presents a numerical investigation of the transient relaxation dynamics of a near-critical CO2 droplet immersed in a warmer supercritical environment composed of the same fluid. Three thermodynamic regimes were analysed: quasi-critical (Tr=1.01,Pr=1.01), transitional (Tr=2.01,Pr=1.01), and deep supercritical (Tr=5.01,Pr=3.01). The evolution of density, temperature, and velocity fields was examined to characterize the internal structure and stability of the interfacial transition layer. The evolution of density, temperature, and velocity fields highlights the competition between thermal diffusion, compressibility, and mass confinement in shaping the stability of the interfacial transition layer. Near the critical point, strong More >

  • Open Access

    ARTICLE

    Gene-Specific Effects of Three Cry Transgenes on Rhizosphere Microbiota in Catalpa bungei

    Xiaofeng Mao1,#, Fenni Lv1,2,#, Shaofeng Li3, Lulu Gao1,2, Wenjun Ma4, Donglai Liu1, Binpeng Wu1, Yanan Wu1, Peng Wang1,2,*, Naiwei Li1,*

    Phyton-International Journal of Experimental Botany, Vol.95, No.2, 2026, DOI:10.32604/phyton.2026.072636 - 28 February 2026

    Abstract Catalpa bungei, a fast-growing timber tree, is threatened by the lepidopteran pest Omphisa plagialis. Previous studies in our laboratory successfully generated transgenic C. bungei lines overexpressing Cry genes (Cry1Ab, Cry2A, and Cry9-2) that exhibited resistance to O. plagialis, but their potential impact on soil bacterial communities remains unclear. In this study, we analyzed nine transgenic C. bungei lines (three independent lines for each Cry gene) to characterize their rhizosphere bacterial communities using high-throughput sequencing of the 16S ribosomal DNA (rDNA) V4–V5 regions. A total of 628 amplicon sequence variants (ASVs) were shared among all transgenic and wild-type (WT) lines, forming a stable core… More >

  • Open Access

    REVIEW

    The Hydrogen Paradigm and Global Hydrogen Transition—Environmental Challenges and Strategic Steps towards a Sustainable Energy System

    Melita Srpak1, Darko Pavlovic2, Predrag Brlek3,*, Nikola Kozul3

    Energy Engineering, Vol.123, No.3, 2026, DOI:10.32604/ee.2026.075211 - 27 February 2026

    Abstract Discussions about the future of energy sources and environmental sustainability are becoming critical on a global scale. The energy sector plays a central role in the economy, as the availability and cost of energy influence the competitiveness of economies, while the level of energy consumption impacts the standard of living for individuals. This paper aims to examine environmental challenges and steps for a sustainable transition towards a hydrogen economy, focusing on its potential as an alternative to fossil fuels and the importance of developing the hydrogen paradigm. The research methodology is based on a combination… More >

  • Open Access

    ARTICLE

    Environmental Sustainability through Waste-to-Wealth Automotive Oil Usage in a Thermal Storage System Integrated with Circulating-Air Solar Air Heater

    Shaymaa Husham Abdulmalek1, Ali Ahmed Gitan2,*, Israa Sami Farhan2, Oras Fadhil Khalaf1, Sayf Waleed Albayati1

    Energy Engineering, Vol.123, No.3, 2026, DOI:10.32604/ee.2026.074018 - 27 February 2026

    Abstract The utilisation of waste in green sustainable technology can provide a clean environment and support energy demand. This work aims to design and analyse the performance of a developed indirect flat-plate Solar Air Heater (SAH) integrated with an internal thermal storage unit using Waste Automotive Oil (WAO). The SAH was designed based on the circulation of confined air around the internal thermal storage unit due to the updraft effects of hot air. Two SAHs were tested to compare the performance of WAO and water, with the results being compared to previous work that utilised phase… More >

  • Open Access

    ARTICLE

    Latent Risk-Protection Profiles of Suicidal Ideation in Chinese Adolescents: A Gender-Specific Analysis of Environmental Vulnerability and Individual Resilience

    Xiaoyin Li1,#, Ruixiang Gao1,2,3,4,#, Jiaxian Luo1, Yongxing Guo5, Pinchao Luo1,2,3,4,*

    International Journal of Mental Health Promotion, Vol.28, No.2, 2026, DOI:10.32604/ijmhp.2026.074111 - 27 February 2026

    Abstract Background: Exposure to environmental vulnerability poses significant threats to adolescent suicidal ideation, while individual resilience can mitigate these adverse effects with notable gender commonalities and differences. However, research examining how these factors co-configure at the individual level remains limited, particularly from a gender-specific perspective. Thus, the present study aims to adopt a person-centered analytic approach to identify gender-specific configurations of environmental vulnerability and individual resilience associated with suicidal ideation among Chinese adolescents. Methods: Data were collected from 2616 Chinese primary and secondary school students (aged 10–17; 1223 girls). Participants completed validated scales measuring environmental vulnerability, individual… More >

  • Open Access

    ARTICLE

    A Novel Improved Puma Optimizer to Boost Photovoltaic Array Production in Partially Shaded Environments

    Nagwan Abdel Samee1, Ahmed Fathy2,*, Mohamed A. Mahdy3, Maali Alabdulhafith1, Essam H. Houssein4,5

    CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.2, 2026, DOI:10.32604/cmes.2025.069931 - 26 February 2026

    Abstract This research proposes an improved Puma optimization algorithm (IPuma) as a novel dynamic reconfiguration tool for a photovoltaic (PV) array linked in total-cross-tied (TCT). The proposed algorithm utilizes the Newton-Raphson search rule (NRSR) to boost the exploration process, especially in search spaces with more local regions, and boost the exploitation with adaptive parameters alternating with random parameters in the original Puma. The effectiveness of the introduced IPuma is confirmed through comprehensive evaluations on the CEC’20 benchmark problems. It shows superior performance compared to both established and modern metaheuristic algorithms in terms of effectively navigating the… More >

  • Open Access

    REVIEW

    The Neuroimmune Axis in Gastric Cancer: Bridging Neural Regulation, Tumor Microenvironment, and Immunotherapy

    Fangyuan Zhang1,#, Xi Wang2,#, Xinxin Shen3, Pei Xiong3, Yan Yang4,*, Jincheng Wang5,*

    Oncology Research, Vol.34, No.3, 2026, DOI:10.32604/or.2025.074893 - 24 February 2026

    Abstract Accumulating evidence indicates that the neuro-immune axis is central to gastric cancer pathogenesis. Dynamic, bidirectional signaling between neural circuits and immune cells promotes tumor progression, shapes an immunosuppressive microenvironment, and contributes to therapeutic resistance. We synthesize current knowledge on how autonomic (sympathetic and parasympathetic) and sensory innervation regulate gastric cancer biology. These circuits act through neurotransmitters (catecholamines, acetylcholine) and neuropeptides (substance P [SP], calcitonin gene-related peptide [CGRP]) to foster tumor growth and angiogenesis, facilitate perineural invasion, and enable immune evasion by recruiting suppressive myeloid and lymphoid populations and by inducing checkpoint molecule expression. We also… More >

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