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  • Open Access

    ARTICLE

    Dendritic Cell Algorithm with Reinforcement Learning for Adaptive Signal Categorization

    Yousra Abudaqqa*, Zulaiha Ali Othman, Azuraliza Abu Bakar

    CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.2, 2026, DOI:10.32604/cmes.2026.079034 - 27 May 2026

    Abstract Signal categorization is a critical component of the Dendritic Cell Algorithm (DCA), as it directly influences its anomaly detection capability. Conventional DCA implementations typically rely on heuristic or optimization-based approaches, such as Grouping Particle Swarm Optimization (GPSO), Grouping Genetic Algorithms (GGA), Principal Component Analysis (PCA), and Support Vector Machines (SVM), to determine mappings between input features and the three immunological signal categories: Pathogen-Associated Molecular Patterns (PAMP), Danger Signals (DS), and Safe Signals (SS). These approaches depend heavily on domain expertise and predefined rules, making the resulting signal mappings static and often dataset specific. Consequently, the… More >

  • Open Access

    ARTICLE

    Predicting Tropical Cyclone Genesis Location Using STAG-Net: A Spatio-Temporal Attention-Gated Network

    Kalim Sattar1, Malik Muhammad Saad Missen2, Syeda Zoupash Zahra1,3, Najia Saher4, Rab Nawaz Bashir3,5,6,*, Oumaima Saidani7, Shahid Kamal5, Muhammad I. Khan6

    CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.2, 2026, DOI:10.32604/cmes.2026.078569 - 27 May 2026

    Abstract Tropical Cyclone (TC) genesis forecasting is an important aspect of early warning systems, as it allows the adoption of early warnings and mitigation plans. However, existing methods often rely on binary classification or fail to capture the complex spatio-temporal dependencies that govern TC formation. To address this limitation, this study introduces STAG-Net, a novel Spatio-Temporal Attention-Gated Network designed to directly predict the geographical coordinates of TC genesis. The model uses multivariate variables of meteorological factors such as u-wind, v-wind, relative humidity, temperature, and large-scale dynamic features using a Convolutional Neural Network (CNN), Gated Recurrent Units… More >

  • Open Access

    ARTICLE

    Finite Element Analysis of Micromorphic Electrodynamics

    Jiaoyan Li1, James D. Lee2,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.2, 2026, DOI:10.32604/cmes.2026.077471 - 27 May 2026

    Abstract The key points of micromorphic theory, including the balance laws and entropy principle, are briefly introduced. Maxwell’s equations and the Lorentz Transformation of E and B fields in both relativistic and non-relativistic electromagnetic theory are discussed. The link between the thermomechanical part and the electromagnetic part of the micromorphic electromagnetic theory is established through the body force, body moment, and energy source. The constitutive theory for thermo-visco-elastic-plastic-electromagnetic (TVEP-EM) materials is formulated. Then the constitutive relations are reduced to the materially linear constitutive equations. Onsager’s postulate is utilized for the derivation of viscosity. Return-Mapping-Algorithm is invoked for plasticity.… More >

  • Open Access

    ARTICLE

    Nonlinear Dynamic Large Deformation Analysis of Hyperelastic Beams Based on the Gent Constitutive Model

    Nasser Firouzi*

    CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.2, 2026, DOI:10.32604/cmes.2026.075681 - 27 May 2026

    Abstract This study investigates finite transient deformations in hyperelastic beam structures based on the Gent material model. To enable its application within beam formulations, the Gent model is expressed in a linearized form. A five-parameter beam element, incorporating two displacement variables, two difference parameters, and one thickness parameter, is adopted. The nonlinear dynamic response is solved using the implicit Newmark method, allowing efficient analysis of beams subjected to complex loading and boundary conditions. The results show that the proposed approach accurately captures the response of geometrically nonlinear beams and reproduces the behavior of neo-Hookean hyperelastic beams More >

  • Open Access

    ARTICLE

    Dynamic Modeling and Control of Phosphate-Pebble Drying Systems—A Comprehensive Approach

    José M. Campos-Salazar1,*, Felipe Santander2, Eduardo Keim3

    Energy Engineering, Vol.123, No.6, 2026, DOI:10.32604/ee.2026.075407 - 27 May 2026

    Abstract A nonlinear dynamic framework is developed to represent the coupled mass- and energy-transfer phenomena governing an industrial phosphate-pebble dryer. The formulation integrates combustion, gas–solid heat exchange, moisture evaporation, and exhaust-draft dynamics into a unified set of nonlinear differential equations suitable for transient analysis and control design. Steady-state operating conditions are first established, followed by local linearization to enable the synthesis of decentralized proportional–integral (PI) controllers using direct-synthesis principles. The resulting control architecture regulates key process variables, including vacuum pressure, outlet moisture content, and furnace temperature. The proposed model is implemented in MATLAB/Simulink using a modular… More > Graphic Abstract

    Dynamic Modeling and Control of Phosphate-Pebble Drying Systems—A Comprehensive Approach

  • Open Access

    ARTICLE

    Dynamic Energy Management in a Hybrid Microgrid Integrating PV, Wind, Fuel Cell and EV Battery Using Fuzzy Logic Control

    Jawad Hameed*, Jiefeng Hu, Md Liton Hossain, Syed Islam

    Energy Engineering, Vol.123, No.6, 2026, DOI:10.32604/ee.2026.074998 - 27 May 2026

    Abstract This paper presents a dynamic energy management strategy for a community-scale campus hybrid microgrid integrating photovoltaic (PV) generation, aggregated wind power, a proton exchange membrane fuel cell, and battery energy storage to support electric vehicle (EV) charging infrastructure under variable environmental and load conditions. The system configuration is inspired by existing renewable energy installations and planned developments at the Federation University Mt Helen Campus, enabling realistic modeling of aggregated demand and coordinated multi-source operation. To enhance physical realism, power electronic conversion efficiencies and hierarchical control dynamics are incorporated, while the wind subsystem is represented using… More >

  • Open Access

    ARTICLE

    Towards Resilient Cities: Robust Selection of Rooftop Renewable Energy Technologies in Mediterranean Multifamily Buildings

    Federico Minelli1,*, Diana D’Agostino1, Vennapusa Jagadeeswara Reddy2, Panagiotis Michailidis3,4

    Energy Engineering, Vol.123, No.6, 2026, DOI:10.32604/ee.2026.074048 - 27 May 2026

    Abstract This study investigates the problem of prioritizing rooftop renewable energy (RE) system configurations for a multi-family residential building in Mediterranean climate. The analysis focuses on fixed-tilt photovoltaics (PV), single-axis and dual-axis tracking PV, and small vertical-axis wind turbines (VAWT), each assessed with and without lithium-ion storage. A co-simulation framework is used, coupling EnergyPlus building-HVAC system simulation with PV and wind generation modeling and rule-based battery dispatch to evaluate hourly demand–supply interactions. Three decision criteria are considered for each alternative: total system cost, annual building electric energy demand reduction, and net avoided life-cycle emissions. Stakeholder preferences… More > Graphic Abstract

    Towards Resilient Cities: Robust Selection of Rooftop Renewable Energy Technologies in Mediterranean Multifamily Buildings

  • Open Access

    ARTICLE

    Identification and Analysis of Aerodynamic Sound Sources in Wind Turbines Based on the Integration of Time-Domain De-Doppler and Orthogonal Matching Pursuit Techniques

    Peng Wang1,2, Zhiying Gao1,2,*, Yongyan Chen1, Rina Su1,2, Yefei Bai2, Jianlong Ma1,2, Tianhao Zhang1

    Energy Engineering, Vol.123, No.6, 2026, DOI:10.32604/ee.2025.073862 - 27 May 2026

    Abstract We propose a novel procedure, Time-Domain De-Dopplerized Orthogonal Matching Pursuit deconvolution approach for the mapping of acoustic sources (TD-OMP-DAMAS), for separating aerodynamic noise sources distributed across wind turbine blades (WTB), a task that is typically hindered by mutual interference and spatial mixing. The proposed procedure is a two-stage, hybrid de-Doppler/sparse-reconstruction algorithm based on time-domain de-Doppler (TD, Stage 1) and an orthogonal matching pursuit (OMP)-based deconvolution scheme (Stage 2), enabling sparse-reconstruction techniques to be effectively applied in rotating-source scenarios. The method is validated using both simulated rotating-source data and wind-tunnel measurements, and its performance is systematically… More >

  • Open Access

    ARTICLE

    A Fast Calculation Method for Dynamic Carbon Emission Factors Based on ILU Decomposition and BiCGSTABs

    Lihua Zhong1, Feng Pan1, Yuyao Yang1, Lei Feng1, Jinghe Jiang2, Guo Lin2, Xiaoshun Zhang3,*

    Energy Engineering, Vol.123, No.6, 2026, DOI:10.32604/ee.2025.073240 - 27 May 2026

    Abstract This paper addresses the challenge of efficiently calculating dynamic carbon emission factors (CEFs) in large-scale power systems. Traditional methods that rely on direct matrix inversion are computationally intensive and become impractical for networks with thousands of nodes. To overcome this limitation, a fast and scalable computational framework is proposed based on the incomplete LU (ILU) preconditioned biconjugate gradient stabilized (BiCGSTAB) iterative solver. The proposed approach formulates the nodal CEF model as a sparse linear system and employs Krylov subspace acceleration with ILU preconditioning to enhance convergence and numerical stability. The method is applied to synthetic… More > Graphic Abstract

    A Fast Calculation Method for Dynamic Carbon Emission Factors Based on ILU Decomposition and BiCGSTABs

  • Open Access

    ARTICLE

    Design and Modeling of Novel Wind Turbine Structures Incorporating Nanocomposite Materials

    Mohammed Yahya1,*, Safaaldeen A. Sulyman2, Joban Sahota1, Gursingh Aikum Dhugga1, Saiakash Shunmugavel1

    Structural Durability & Health Monitoring, Vol.20, No.3, 2026, DOI:10.32604/sdhm.2026.074828 - 18 May 2026

    Abstract The structural integrity and longevity of wind turbine blades are critical determinants of the efficiency and reliability of wind energy systems. As the primary components responsible for converting kinetic wind energy into mechanical torque and subsequently electrical power, the aerodynamic, structural, and material characteristics of rotor blades directly influence turbine performance and operational lifespan. This research addresses the limitations of conventional blade designs, often characterized by stress concentration, fatigue damage, and dynamic instability by introducing a novel diamond-lattice internal support structure aimed at improving mechanical strength, fatigue resistance, and dynamic stability. Finite element simulations performed… More >

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