Ain Shams Engineering Journal最新文献_第5页

Hybrid Adaptive Sliding Mode Controller for Path Tracking of Wheeled Mobile Robot in Uncertainty 不确定条件下轮式移动机器人路径跟踪的混合自适应滑模控制

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-05 DOI: 10.1016/j.asej.2025.103640

Madhu Sudan Das , Usha Rani Gogoi , Sanjoy Mandal

{"title":"Hybrid Adaptive Sliding Mode Controller for Path Tracking of Wheeled Mobile Robot in Uncertainty","authors":"Madhu Sudan Das , Usha Rani Gogoi , Sanjoy Mandal","doi":"10.1016/j.asej.2025.103640","DOIUrl":"10.1016/j.asej.2025.103640","url":null,"abstract":"<div><div>In this paper robust kinematic based adaptive sliding mode controller (KASMC) and dynamic based adaptive sliding mode controller (DASMC) are proposed for path tracking of wheeled-mobile-robot (WMR). KASMC is designed based on the kinematics of the WMR, while the DASMC is designed based on dynamic behavior of WMR. These combined control action derives WMR for efficient path tracking. Lyapunov stability is used in derivation of KASMC and DASMC control algorithms to ensure the stability. Furthermore, path tracking has been improved by designing hybrid controllers where adaptive-krill-herd-neuro-fuzzy-inference-controller (AKHNFIS) as kinematic controller and DASMC as dynamic controller are used. Proposed KASMC-DASMC and hybrid controller AKHNFIS-DASMC show efficient performance for various path tracking over conventional sliding-mode-control and, Iterative-learning-control, and PID-controller. Performance of the controllers are measured by the tracking error of the robot’s path, simulation-time, and path-length. Simulation results show that proposed control algorithm improves the performance of WMR for path tracking significantly.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 12","pages":"Article 103640"},"PeriodicalIF":5.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compensation strategies for improved real-world deployment of deep learning-based partial discharge localization from digital twin data 基于数字孪生数据的深度学习局部放电定位改进现实部署的补偿策略

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-05 DOI: 10.1016/j.asej.2025.103734

Jun Qiang Chan, S.M. Kayser Azam, Wong Jee Keen Raymond, Hazlee Azil Illias, Mohamadariff Othman

{"title":"Compensation strategies for improved real-world deployment of deep learning-based partial discharge localization from digital twin data","authors":"Jun Qiang Chan, S.M. Kayser Azam, Wong Jee Keen Raymond, Hazlee Azil Illias, Mohamadariff Othman","doi":"10.1016/j.asej.2025.103734","DOIUrl":"10.1016/j.asej.2025.103734","url":null,"abstract":"<div><div>Measurement errors caused by real-time electromagnetic (EM) noise or the sensitivity of measuring equipment significantly affect Partial Discharge (PD) localization accuracy in open-space substations. This study proposes a Deep Neural Network (DNN) approach combined with an augmented Time Difference of Arrival (TDOA) dataset to improve PD coordinate estimation. A digital twin of a 10 m × 10 m × 2 m space was used to generate over one million synthetic data points, substantially reducing data collection time. The trained DNN demonstrated excellent localization performance in the digital environment, with more than 90% of errors below 5%, as validated by 3D scatter plots. Despite relying on augmented TDOA data from the digital twin, the DNN model exhibited high confidence when applied to real-world measurements, achieving an average localization error of 0.3610 m across 21 test points, outperforming Random Forest Regression (RFR), Gaussian Process Regression (GPR) and 1-dimensional Convolutional Neural Networks (1DCNN). Additionally, an in-depth analysis of the augmented TDOA dataset synthesis was conducted to optimize the DNN model. Key factors investigated included the impact of dataset size on localization accuracy, training time and performance across different training durations. Finally, a benchmarking comparison with existing methods was summarized in tabular form, highlighting the advantages of the proposed work over conventional iterative algorithms and other machine learning (ML) models.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 12","pages":"Article 103734"},"PeriodicalIF":5.9,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reputation-based uniform pricing & energy distribution in peer-to-peer energy trading market 点对点能源交易市场中基于声誉的统一定价与能源分配

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103715

Waqas Amin , Qi Huang , Jian Li , Abdullah Aman Khan , Umashankar Subramaniam , Sivakumar Selvam

{"title":"Reputation-based uniform pricing & energy distribution in peer-to-peer energy trading market","authors":"Waqas Amin , Qi Huang , Jian Li , Abdullah Aman Khan , Umashankar Subramaniam , Sivakumar Selvam","doi":"10.1016/j.asej.2025.103715","DOIUrl":"10.1016/j.asej.2025.103715","url":null,"abstract":"<div><div>An increase in the popularity of peer-to-peer energy trading in smart grids due to the massive integration of renewable energy sources demands effective and competitive pricing and energy allocation policies to ensure fairness within the market framework. Considering the scalability issues, technical complexity, and operational costs of distributed ledger technology such as blockchain, the reputation of the participants becomes a prominent factor to ensure trustworthiness, reduce risk, and increase market efficiency. This paper proposes a novel method to determine the reputation of participants within the energy market. Based on the evaluated reputation of the participants, an effective pricing method along with an energy distribution technique is devised by considering several market dynamics that significantly affect the pricing and energy allocation method. Extensive experiments have been conducted to validate the effectiveness of the proposed model. The results demonstrate that through the proposed model, the energy bills of the buyers can be reduced by 44%. This highlights the tangible benefits and practical applicability of the proposed approach in optimizing energy costs for consumers in the P2P energy trading ecosystem.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 12","pages":"Article 103715"},"PeriodicalIF":5.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Graph-theoretic characterization of rings: Outer multiset dimension of compressed zero-divisor graphs 环的图论表征：压缩零因子图的外多集维

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103693

Amina Riaz , Hafiz Muhammad Afzal Siddiqui , Muhammad Bilal Riaz , Nasir Ali

引用次数: 0

Effects of scale and form of verandas on thermal protection performance 廊道尺度和形式对热防护性能的影响

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103717

Sun Qianqian , Luo Zhixing , Bai Lujian , Wang Xinyi , Zhang Kaijie , Lv Wenxin , Xu Qixuan

{"title":"Effects of scale and form of verandas on thermal protection performance","authors":"Sun Qianqian , Luo Zhixing , Bai Lujian , Wang Xinyi , Zhang Kaijie , Lv Wenxin , Xu Qixuan","doi":"10.1016/j.asej.2025.103717","DOIUrl":"10.1016/j.asej.2025.103717","url":null,"abstract":"<div><div>Veranda serves as a shading and heat protection area for homes in hot and humid regions, connecting indoor and outdoor spaces. However, there is limited literature on precise veranda design for climate regulation. This research focuses on the impact of veranda scale and form on thermal protection, aiming to establish design guidelines for a better indoor and veranda thermal environment. Local residential buildings on Hainan Island are analyzed to study veranda types and layouts. Simulation models, based on local meteorological data and Autodesk CFD software, are used to compare and evaluate different veranda scales and forms. Increasing the overhang from 1.5 m to 3.0 m can improve the thermal comfort of the veranda on first floor by 9.3 %. The number of verandas increased from one side to four sides, reducing the APMV values of the first and second level verandas by 0.26 and 0.1, respectively. The study proposes effective design guidelines for verandas in residential buildings, beneficial for sustainable development in hot and humid areas.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 11","pages":"Article 103717"},"PeriodicalIF":5.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GK-ANFIS: Gated and KAN-enhanced adaptive neuro-fuzzy inference system for robot path planning GK-ANFIS：用于机器人路径规划的门控和kan增强自适应神经模糊推理系统

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103726

Guanyuan Feng, Meiqi Zhou, Weili Shi, Yu Miao

引用次数: 0

Morphology-governed lubrication mechanisms revealed by multi-cycle molecular dynamics: From reticular constraint to globular enhancement in Cu-Pb alloys 多循环分子动力学揭示的形态控制润滑机制：从Cu-Pb合金的网状约束到球状增强

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103746

Zhenpeng Wu , Bowen Dong , Wenting Guo

{"title":"Morphology-governed lubrication mechanisms revealed by multi-cycle molecular dynamics: From reticular constraint to globular enhancement in Cu-Pb alloys","authors":"Zhenpeng Wu , Bowen Dong , Wenting Guo","doi":"10.1016/j.asej.2025.103746","DOIUrl":"10.1016/j.asej.2025.103746","url":null,"abstract":"<div><div>This study investigates the influence of Pb-rich secondary phase (PSP) morphology on the tribological behavior of Cu-Pb alloys by combining experimental characterization with molecular dynamics (MD) simulations. Reticular-structured (R-Alloy) and globular-distributed (G-Alloy) PSPs were fabricated based on precise composition control and characterized using high-resolution microscopy. Under continuous friction conditions, MD simulations reveal that PSP morphology critically governs lubricating film formation through distinct Pb migration mechanisms: the interconnected network in R-Alloy restricts Pb diffusion, resulting in discontinuous films, whereas G-Alloy enables directional Pb migration and the formation of uniform lubricating layers. Quantitative analysis links strain-field gradients and thermal evolution to friction stability, showing that globular PSPs promote homogeneous deformation and better heat dissipation. The strong agreement between experimental and simulation results validates the approach and demonstrates that tailoring PSP architecture—particularly toward a globular configuration—is an effective strategy for optimizing the tribological performance of self-lubricating alloys.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 11","pages":"Article 103746"},"PeriodicalIF":5.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and implementation of Quasi-proportional-resonant controller of LCL filter inverter with grid current feedback active damping in weak grid to enhance stability 弱电网中带电网电流反馈主动阻尼的LCL滤波逆变器准比例谐振控制器的设计与实现

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103724

Youssef Lamkharbach , Ghassane Aniba , Ahmed Chebak

{"title":"Design and implementation of Quasi-proportional-resonant controller of LCL filter inverter with grid current feedback active damping in weak grid to enhance stability","authors":"Youssef Lamkharbach , Ghassane Aniba , Ahmed Chebak","doi":"10.1016/j.asej.2025.103724","DOIUrl":"10.1016/j.asej.2025.103724","url":null,"abstract":"<div><div>This paper proposes a systematic design and tuning methodology for a Quasi-Proportional-Resonant (Q-PR) controller combined with grid-current-feedback active damping (GCF-AD) for grid-connected inverters equipped with LCL filters. Unlike previous works, the proposed approach explicitly considers digital sampling delays and provides clear stability margins, ensuring robust operation even under weak grid conditions. The Q-PR controller design is examined in two scenarios: first, a single-loop grid-side current control without active damping, suitable when the filter’s resonance frequency exceeds one-sixth of the sampling frequency (<span><math><mrow><msub><mi>f</mi><mi>s</mi></msub><mo>/</mo><mn>6</mn></mrow></math></span>). A discrete-domain stability analysis based on the Nyquist Criterion is conducted to determine the theoretical limit of the proportional gain for stable operation. In the second scenario, active damping is introduced, and a coordinated tuning procedure is developed using the Routh criterion to jointly select the Q-PR and AD parameters, ensuring adequate gain and phase margins. Experimental validation confirms that the proposed method effectively mitigates resonance, reduces total harmonic distortion (THD), and improves dynamic robustness compared to traditional approaches, demonstrating its suitability for grid-connected applications under varying grid conditions.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 11","pages":"Article 103724"},"PeriodicalIF":5.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An estimation approach on material intensities and global warming potential of Turkish residential stock 土耳其住宅存量的材料强度和全球变暖潜力的估计方法

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103725

Melek Elif Somer

引用次数: 0

A Rothe-Chebyshev collocation algorithm for the hyperbolic telegraphic type equations with variable coefficients 变系数双曲电报型方程的Rothe-Chebyshev配置算法

IF 5.9 2区工程技术

Ain Shams Engineering Journal Pub Date : 2025-09-04 DOI: 10.1016/j.asej.2025.103720

Mohammad Izadi , Samad Noeiaghdam , H.M. Ahmed

{"title":"A Rothe-Chebyshev collocation algorithm for the hyperbolic telegraphic type equations with variable coefficients","authors":"Mohammad Izadi , Samad Noeiaghdam , H.M. Ahmed","doi":"10.1016/j.asej.2025.103720","DOIUrl":"10.1016/j.asej.2025.103720","url":null,"abstract":"<div><div>We construct a semi-discretized spectral approach for the second-order telegraphic-type equations with Dirichlet or Neumann boundary conditions. The successive method of Rothe is first employed for the temporal discretization procedure to transform the model equations into a system of boundary value problems. Subsequently, the spectral matrix procedure utilizing the shifted modified Chebyshev polynomials (SMCPs) is formulated for the spatial variable. The family of discrete solutions obtained by the hybrid Rothe-SMCPs algorithm is demonstrated to exhibit uniform convergence to the continuous solution of order <span><math><mi>O</mi><mrow><mo>(</mo><mi>Δ</mi><mi>τ</mi><mo>+</mo><msup><mrow><mi>R</mi></mrow><mrow><mo>−</mo><mn>3</mn></mrow></msup><mo>)</mo></mrow></math></span>. In this context, Δ<em>τ</em> signifies the time step, while <em>R</em> represents the number of SMCPs employed in the approximation procedure. Simulation experiments are carried out to highlight the strong agreement between the numerical results and theoretical predictions. The numerical results utilizing a larger time-step size exhibit greater accuracy compared to the computational values available in existing research works.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 11","pages":"Article 103720"},"PeriodicalIF":5.9,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0