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  • Open Access

    ARTICLE

    Signal-Based Identification of the Critical Liquid-Loading Condition in Gas–Liquid Two-Phase Flow

    Yang Cheng*, Dajiang Wang, Zhiyang Sun

    FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.3, 2026, DOI:10.32604/fdmp.2026.077747 - 31 March 2026

    Abstract Accurate diagnosis of liquid loading in gas wells is hindered by inconsistent criteria for identifying the critical liquid-loading condition and by reliance on subjective observation during the development of physical models. To address this issue, controlled laboratory experiments were conducted to investigate pressure fluctuations in gas–liquid two-phase flow under different flow regimes, with the aim of establishing a quantitative criterion to identify such critical conditions. High-frequency pressure signals were collected and analyzed using complementary ensemble empirical mode decomposition (CEEMD). Characteristic parameters describing slug flow, annular flow, and the critical liquid-loading condition were extracted accordingly, including More >

  • Open Access

    ARTICLE

    Biochemical Evaluation of Custard Apple (Annona reticulata L.) Fruits in Tepic, Nayarit

    Flavia Angélica Pérez-Flores1, José Orlando Jiménez-Zurita2,*, Pedro Ulises Bautista-Rosales3,*, Rosendo Balois-Morales2, Graciela Guadalupe López-Guzmán2, Andrés Eloy León-Fernández4, Juan Esteban Bello-Lara4, Carlos Azhael Rodríguez-Guzmán4, Guillermo Berumen-Varela3

    Phyton-International Journal of Experimental Botany, Vol.95, No.3, 2026, DOI:10.32604/phyton.2026.077078 - 31 March 2026

    Abstract The custard apple fruit (Annona reticulata L.) is distinguished not only by its pleasant flavor and high nutritional value, but also by the presence of bioactive compounds in its pulp, particularly antioxidants, which may provide health benefits when consumed. However, in Nayarit this plant material is found in the wild, without agronomic management or conservation programs. Therefore, the purpose of this research was to evaluate several antioxidants in the pulp of custard apple fruits. Fruits were collected from four localities in Tepic, Nayarit (Jicote, Trapichillo, 14 de Marzo, and Tepic). Total phenolics, flavonoids, vitamin C, carotenoids,… More >

  • Open Access

    ARTICLE

    Experimental Study on Heat Transfer Characteristics of New Jacketed Cold Storage Condenser

    Lei Xing1, Haonan Huang2, Mingyang Sun2, Dongyue Jiang2,*, Qiang He1,*

    Frontiers in Heat and Mass Transfer, Vol.24, No.1, 2026, DOI:10.32604/fhmt.2026.075774 - 28 February 2026

    Abstract In response to the actual demands of the energy storage type organic Rankine power generation cycle, this study proposes a new type of jacketed shell and tube heat exchanger with integrated cold storage and heat exchange. N-tedecane is selected as the phase change material for cold storage, low-temperature water as the cold source, and R134a as the heat source. The phase change material for cold storage is filled inside the jacket tube of the heat exchanger. Cold fluid is introduced into the inner tube to cause the phase change material to condense and store cold.… More >

  • Open Access

    ARTICLE

    Determination of Bioactive Potential in a Semi-domesticated Population of Oregano (Lippia graveolens Kunth) with Organic Fertilization

    Priscilla Yamilhet Montes-Orona1, Mercedes Georgina Ramírez-Aragón2, Isaela Villalpando-De La Torre3, Urbano Nava-Camberos1, Jared Ceniceros-García1, José Luis García-Hernández1,*

    Phyton-International Journal of Experimental Botany, Vol.95, No.2, 2026, DOI:10.32604/phyton.2026.074379 - 28 February 2026

    Abstract Mexican oregano (Lippia graveolens Kunth) is an aromatic species of high culinary and medicinal relevance. In Mexico, more than 40 taxa with characteristic aroma and flavor are commercially recognized as oregano, with L. graveolens being the most widely distributed and economically important. Despite its relevance, few domesticated or semi-domesticated cultivars exist, and wild populations remain the main source of raw material, raising concerns regarding sustainability and quality standardization. The essential oil and oleoresins of L. graveolens possess recognized bioactivity, including antioxidant, antifungal, antibacterial, and anti-inflammatory properties, largely attributed to phenolic compounds such as thymol and carvacrol. Given the… More >

  • Open Access

    ARTICLE

    A Data-Driven Framework for Lithium-Ion Battery SOH Estimation Using VMD-GRU Hybrid Approach with Multi-Scale Feature Analysis

    Min Liu1,*, Zhengxiong Lu2,*

    Energy Engineering, Vol.123, No.3, 2026, DOI:10.32604/ee.2025.071144 - 27 February 2026

    Abstract The accurate state of health (SOH) estimation in lithium-ion batteries represents a critical technological challenge with profound implications for electric vehicle performance and user experience. Precise SOH assessment not only enables reliable mileage prediction but also ensures operational safety. However, the complex and non-linear capacity fading process during battery cycling poses a challenge to obtaining accurate SOH. To address this issue, this study proposes an effective health factor derived from the local voltage range during the battery charging phase. First, the battery charging phase is divided evenly with reference to voltage intervals, and an importance… More >

  • Open Access

    ARTICLE

    Secure Rate Maximization for UAV-RIS-Aided IoT Network in Smart Grid

    Jian Wu*, Xiaowei Hao, Chao Han

    Energy Engineering, Vol.123, No.3, 2026, DOI:10.32604/ee.2025.071023 - 27 February 2026

    Abstract Owing to the development of communication technologies and control systems, the integration of numerous Internet of Things (IoT) nodes into the power grid has become increasingly prevalent. These nodes are deployed to gather operational data from various distributed energy sources and monitor real-time energy consumption, thereby transforming the traditional power grid into a smart grid (SG). However, the openness of wireless communication channels introduces vulnerabilities, as it allows potential eavesdroppers to intercept sensitive information. This poses threats to the secure and efficient operation of the IoT-driven smart grid. To address these challenges, we propose a… More >

  • Open Access

    ARTICLE

    Optimal Allocation of Multiple Energy Storage Capacity in Industrial Park Considering Demand Response and Laddered Carbon Trading

    Jingshuai Pang1,2, Songcen Wang1, Hongyin Chen1,2,*, Xiaoqiang Jia1, Yi Guo1, Ling Cheng1, Xinhe Zhang1, Jianfeng Li1

    Energy Engineering, Vol.123, No.1, 2026, DOI:10.32604/ee.2025.070256 - 27 December 2025

    Abstract To achieve the goals of sustainable development of the energy system and the construction of a low-carbon society, this study proposes a multi-energy storage collaborative optimization strategy for industrial park that integrates the laddered carbon trading mechanism with demand response. Firstly, a dual dimensional DR model is constructed based on the characteristics of load elasticity. The alternative DR enables flexible substitution of energy loads through complementary conversion of electricity/heat/cold multi-energy sources, while the price DR relies on time-of-use electricity price signals to guide load spatiotemporal migration; Secondly, the LCT mechanism is introduced to achieve optimal… More >

  • Open Access

    ARTICLE

    Enhanced Capacity Reversible Data Hiding Based on Pixel Value Ordering in Triple Stego Images

    Kim Sao Nguyen, Ngoc Dung Bui*

    CMC-Computers, Materials & Continua, Vol.86, No.1, pp. 1-16, 2026, DOI:10.32604/cmc.2025.069355 - 10 November 2025

    Abstract Reversible data hiding (RDH) enables secret data embedding while preserving complete cover image recovery, making it crucial for applications requiring image integrity. The pixel value ordering (PVO) technique used in multi-stego images provides good image quality but often results in low embedding capability. To address these challenges, this paper proposes a high-capacity RDH scheme based on PVO that generates three stego images from a single cover image. The cover image is partitioned into non-overlapping blocks with pixels sorted in ascending order. Four secret bits are embedded into each block’s maximum pixel value, while three additional 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

    REVIEW

    Recent Advancements in Biochar Functionalization from Crop Residues for a Green Future

    Omojola Awogbemi1,*, Daramy Vandi Von Kallon1, Ramesh C. Ray2

    Journal of Renewable Materials, Vol.13, No.11, pp. 2191-2233, 2025, DOI:10.32604/jrm.2025.02025-0112 - 24 November 2025

    Abstract Increased human and industrial activities have exacerbated the release of toxic materials and acute environmental pollution in recent times. Biochar, a carbon-rich material produced from biomass, is gaining momentum as a versatile material for attaining a sustainable environment. The study reviews the application of functionalized biochar for energy storage, environmental remediation, catalysis, and sustainable agriculture, aiming to achieve a greener future. The deployment of crop residues as a renewable feedstock for biochar, and their properties, compositions, modification, and functionalization techniques are also discussed. Additionally, the avenues for applying functionalized biochar to achieve a greener future,… More > Graphic Abstract

    Recent Advancements in Biochar Functionalization from Crop Residues for a Green Future

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