Ain Shams Engineering Journal最新文献

{"title":"Hybrid error estimates of Weddle's formula and their applications for various classes of functions","authors":"Muhammad Umar ,&nbsp;Saad Ihsan Butt ,&nbsp;Dawood Khan ,&nbsp;Sanja Tipurić-Spužević ,&nbsp;Youngsoo Seol","doi":"10.1016/j.asej.2025.103444","DOIUrl":"10.1016/j.asej.2025.103444","url":null,"abstract":"<div><div>This study presents new bounds on Weddle's type formula for differentiable functions using proportional Caputo-Hybrid operators (<span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>c</mi><mi>a</mi><mi>p</mi></mrow></msub></math></span>). These operators provide hybrid estimates; for <span><math><mi>α</mi><mo>=</mo><mn>1</mn></math></span>, they yield first-derivative estimates, while for <span><math><mi>α</mi><mo>=</mo><mn>0</mn></math></span>, they approximate the second derivative. By applying <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>c</mi><mi>a</mi><mi>p</mi></mrow></msub></math></span>, we generalize Weddle's formula for optimal approximations, particularly for polynomials of degree six. This enhances its applicability when Simpson's 1/3 rule fails to achieve the required precision. Our findings extend Weddle's formula to a broader class of functions, improving error bounds in inequality theory and calculus. We demonstrate applications in special means and functions, validating our approach through rigorous computational analysis. Additionally, we propose future research directions, including extensions to q-calculus, symmetrized q-calculus, and multiplicative calculus, as well as exploring multidimensional spaces using alternative fractional integral operators.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103444"},"PeriodicalIF":6.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143936347","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}

{"title":"Efficient routing for multiple AGVs in container terminals using hybrid deep learning and metaheuristic algorithm","authors":"Bui Minh Hau ,&nbsp;Sam-Sang You ,&nbsp;Le Ngoc Bao Long ,&nbsp;Hwan-Seong Kim","doi":"10.1016/j.asej.2025.103468","DOIUrl":"10.1016/j.asej.2025.103468","url":null,"abstract":"<div><div>This study aims to present the efficient routing of multiple agent systems by optimizing the automated guided vehicle (AGV) movement, waiting time, or container-lifting actions, providing optimal routing solutions in automated container terminals (ACTs). Through integrated scheduling, the AGV agent can determine the efficient route to the container, then pick it up and transport it to the final destination. Users can provide the starting position of the AGVs, container position, and drop-down location. The algorithm returns action lists for the AGV to perform. AGV route is implemented based on mapping the action in the action lists and the layout, preventing collisions and deadlocks among AGVs. We utilized the advantage actor-critic (A2C) reinforcement learning method combined with the ant colony optimization (ACO) of a swarm intelligence algorithm to solve the optimal routing problem in AGV-based ACTs. More specifically, this study presents the optimal action strategy that ACO-A2C finds for each AGV and a route scheme that each AGV can travel without colliding with other AGVs and obstacles. This novel method can potentially improve ACTs’ equipment utilization for efficient and competitive management.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103468"},"PeriodicalIF":6.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937443","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}

{"title":"Guiding campus building design and renovation through design quality indicators and Post-Occupancy evaluations","authors":"Hanfei Lin ,&nbsp;Yi-Kai Juan ,&nbsp;Daniel Castro-Lacouture","doi":"10.1016/j.asej.2025.103457","DOIUrl":"10.1016/j.asej.2025.103457","url":null,"abstract":"<div><div>The quality of university campus buildings (UCBs) is critical for supporting effective educational activities. Over time, however, many UCBs necessitate significant renovation and reconstruction due to structural deterioration and evolving functional requirements. A key challenge, particularly during the initial design phase, is ensuring that buildings adequately address user needs. Insufficient consideration of these requirements can result in suboptimal designs and subsequent user dissatisfaction. This study investigated the relationship between design quality and post-occupancy satisfaction in UCBs. Design quality was assessed using the Design Quality Indicator (DQI), an instrument for evaluating building design. Post-occupancy evaluation (POE) was employed to measure user experience. Data were collected from 53 UCBs in Taiwan. Random forest regression and support vector machine regression were incorporated alongside linear regression for comparative analysis to examine the correlation between POE and DQI. Furthermore, the importance-satisfaction (I-S) model was applied to analyze improvement priorities across different building types. The findings revealed a strong positive correlation between DQI scores and POE results, indicating that higher design quality leads to greater user satisfaction. Specifically, the I-S model identified key areas for improvement, primarily including indoor space arrangement and indoor quality in teaching and administration buildings; privacy, space efficiency and indoor quality in dormitories and libraries; and energy efficiency, aesthetics, and indoor quality in gymnasiums. This study underscores the importance of integrating DQI into the early stages of building planning and design to enhance post-occupancy satisfaction and optimize the functionality of UCBs.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103457"},"PeriodicalIF":6.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937442","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}

{"title":"A multi-criteria decision-making approach of transport intersection toward sustainable urban transport index","authors":"Wantana Prapaporn,&nbsp;Wuttikrai Chaipanha,&nbsp;Patiphan Kaewwichian","doi":"10.1016/j.asej.2025.103453","DOIUrl":"10.1016/j.asej.2025.103453","url":null,"abstract":"<div><div>Intersections are key causes of traffic problems from a traffic engineering perspective. To determine the options of intersection investment, this study proposes a new framework by performing multicriteria decision-making analysis (MCDA) to determine the manner by which an entire network is affected. A study utilizing comprehensive SAW, TOPSIS, VIKOR, and PROMETHEE techniques is performed and focuses on three main criteria. Additionally, nine subcriteria related to SUTI are considered. This new framework examines the effects of urban mobility levels, which promote effective intersection options. In this regard, MCDA serves as an efficient filter that focuses on the most effective alternatives of an entire network. This decision-making framework is a novel idea for intersections along new corridors, particularly in developing cities, where bypasses are crucial for addressing urban sprawl. A case study in Mukdahan, Thailand, shows that an urban growth rate of 1.856 % affects the effectiveness of intersection selection for road transportation.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103453"},"PeriodicalIF":6.0,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932203","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}

{"title":"Privacy-preserving authentication for 5G healthcare with HBZKP: Hierarchical blockchain-based zero knowledge proof for secure edge devices","authors":"V. Maheshwari,&nbsp;M. Prasanna","doi":"10.1016/j.asej.2025.103463","DOIUrl":"10.1016/j.asej.2025.103463","url":null,"abstract":"<div><h3>Objective</h3><div>The combination of 5G connectivity and edge computing known as 5G Edge, lifts the limitations of the Internet of Medical Things (IoMT) and enables a plethora of authentic healthcare services, including access to medical information and diagnosis. Additionally, there is a chance that malicious insiders using the 5G Edge platform could compromise the security and confidentiality of IoMT data. As a result, end users cannot trust 5G Edge data.</div></div><div><h3>Materials and methods</h3><div>This paper imagines a new hierarchical blockchain edge of things (HBEoT) architecture that would facilitate healthcare applications managed by blockchain at the network edge. Additionally, the article delves into how HBEoT can offer security services such as authenticating users, protecting data, detecting attacks, and managing trust. First, the consensus method PoS generates a block for healthcare data, and its hash values are kept in the blockchain. The Zero Knowledge Proof (ZKP) protocol stores secret information in the blockchain, authenticating healthcare systems for enhanced privacy and security.</div></div><div><h3>Results</h3><div>To ensure immutable data storage, the suggested architecture incorporates 5G Edge servers into a blockchain platform. It prevents unauthorised users from accessing healthcare services by acting as an anonymous authenticator. We assessing the proposed methods efficiency in terms of latency, throughput, communication cost, energy consumption cost and the validation between ZKP prover and verifier.</div></div><div><h3>Conclusion</h3><div>We conduct multiple experiments to evaluate the effectiveness of the suggested framework. To further investigate the quality measures, such as authenticate latency, throughput rate was examined. To fulfil the requirements for a 5G-enabled healthcare system, the research shows that the suggested HBEoT-ZKP performs a decrease in latency of around 1.16 s and an improvement in throughput of approximately 339 tps. Communication and energy cost is evaluated and compared with other conventional methods.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103463"},"PeriodicalIF":6.0,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929296","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}

{"title":"Antenna performances based on distinctive thickness-dependent of flexible substrates: A comprehensive review","authors":"Mohamad Faiz Mohamed Omar ,&nbsp;Sharul Kamal Abdul Rahim ,&nbsp;Mohd Fadzil Ain ,&nbsp;Asrulnizam Abd Manaf ,&nbsp;Intan Sorfina Zainal Abidin ,&nbsp;Zaid Ahmed Shamsan","doi":"10.1016/j.asej.2025.103417","DOIUrl":"10.1016/j.asej.2025.103417","url":null,"abstract":"<div><div>A flexible antenna has many benefits, including a simple structure, simple resonator control, steady performance, and improved efficiency when bent. A flexible antenna offers an additional advantage via structure integration, leading to a reduction in bulk. To date, researchers are continuously delving into novel materials that have the potential to serve as a substrate for the design and development of flexible antennas. Choosing the appropriate substrate material and thickness for the desired application is one of the fundamental antenna design principles. To put it simply, there is no definitive guideline for selecting the optimal flexible substrate to use in an antenna development within a specific frequency range. The parameters for determining the right thickness of the thin flexible substrates are not explicitly established. This review comprehensively presents an overview of a measured dataset for a number of different flexible antenna models based on thin films. It also discusses the difficulties encountered while designing the antenna up to a point when it calls for the usage of a flexible thin film of a certain thickness to meet the demands of the issues raised while maximising its potential.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103417"},"PeriodicalIF":6.0,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143932204","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}

{"title":"A novel family of generalized stochastic neural network operators with illustrations of their various capabilities","authors":"Abeer Aljohani","doi":"10.1016/j.asej.2025.103441","DOIUrl":"10.1016/j.asej.2025.103441","url":null,"abstract":"<div><div>This study introduces a novel family of generalized stochastic neural network (GSNN) operators with enhanced modeling and approximation capabilities. Point-wise and uniform approximation results are established, along with estimations of the rate of convergence. By utilizing vector functions and vector inputs, the proposed operators achieve improved convergence rates and effectiveness in handling complex data. Their applicability in optimization and modeling real-world phenomena is demonstrated through the approximation of the Rosenbrock function. A detailed comparative analysis confirms that the GSNN operators outperform several existing operators in terms of convergence speed, approximation order, and accuracy metrics, including the <span><math><msub><mrow><mi>F</mi></mrow><mrow><mn>1</mn></mrow></msub></math></span>-score. Furthermore, the operators' modeling capabilities are validated using real-world cardiovascular disease data, where they exhibit superior predictive performance. The incorporation of stochastic processes enables the proposed operators to effectively capture and model the inherent uncertainties present in real-world scenarios.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103441"},"PeriodicalIF":6.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922361","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}

{"title":"The impact of subsequent additions on visual harmony in a designed campus: A fractal analysis of Bursa Uludağ University Görükle Campus","authors":"Barış Mert Karasu,&nbsp;Özgür Ediz","doi":"10.1016/j.asej.2025.103459","DOIUrl":"10.1016/j.asej.2025.103459","url":null,"abstract":"<div><div>The academic district of Bursa Uludağ University Görükle Campus was designed by Sezar Aygen by repeating the original architectural form in order to achieve visual harmony. Designed in 1978, the construction process on the campus started in accordance with Aygen’s design, but the buildings added over time have led to divergences from the original design. This study aims to evaluate the visual harmony of the buildings added to the academic district with the original design. The fractal dimension was used as a method of analysis to assess the level of similarity between the original form and the buildings added later. This paper is one of the pioneering studies that use fractal dimension analysis to reveal the visual harmony between architectural products in a bounded area. The findings show that the later buildings are not in complete visual harmony with the original design, creating visual diversity in the academic district.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103459"},"PeriodicalIF":6.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922358","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}

{"title":"Comparative analysis of metaheuristic algorithms-based control for enhancing low voltage ride through in grid-connected photovoltaic systems","authors":"Yasmin GH. Mousa ,&nbsp;Tarek S. Abdelsalam ,&nbsp;Hany M. Hasanien ,&nbsp;Zia Ullah ,&nbsp;Abdulaziz Alkuhayli ,&nbsp;Mohamed Mokhtar","doi":"10.1016/j.asej.2025.103423","DOIUrl":"10.1016/j.asej.2025.103423","url":null,"abstract":"<div><div>This paper aims to investigate the improvement of the low voltage ride-through (LVRT) in grid-connected photovoltaic (PV) systems by applying the Gold Rush Optimization (GRO) algorithm to design system PI controllers. This paper overviews the significance of LVRT in PV systems, emphasizing its importance for grid stability and regulatory compliance under symmetrical and asymmetrical faults. The results are compared with Particle Swarm Optimization (PSO) and Whale Optimization Algorithm (WOA) based on overshoot, settling time, and steady-state error. In the 3L-G fault, DC-link voltage V_dc, GRO outperforms the other algorithms, achieving a reduction of 4.75% in overshoot compared to PSO and a 2.85% improvement over WOA. Additionally, GRO achieves the fastest settling time, a 2.75% reduction compared to PSO and WOA. In terms of accuracy, GRO demonstrates the lowest percentage error. These findings confirm that (GRO) is an effective optimization approach for improving grid stability, reducing power fluctuations, and enhancing low-voltage ride-through capability in PV systems.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 7","pages":"Article 103423"},"PeriodicalIF":6.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922444","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}

{"title":"An adaptive multivariate EWMA chart for monitoring Gumbel's bivariate exponential distributed data","authors":"Xuelong Hu ,&nbsp;Fan Xia ,&nbsp;Wei Lin Teoh ,&nbsp;Jiujun Zhang","doi":"10.1016/j.asej.2025.103437","DOIUrl":"10.1016/j.asej.2025.103437","url":null,"abstract":"<div><div>In modeling the multivariate time between events (MTBE), Gumbel's Bivariate Exponential (GBE) distribution has played an important role in industrial or service processes. Some works have been conducted on monitoring the processes that follow the GBE distribution. However, existing works on monitoring the GBE distributed processes are mostly on constructing the chart for the specific change size, which actually may vary or not to be known in practice. This may cause the existing designed GBE monitoring schemes' poor detection performance for different changes. To overcome this limitation and improve the existing GBE charts' detection ability for different change sizes, this paper proposes a new multivariate exponentially weighted moving average (MEWMA) chart with an adaptive structure, named as AMEWMA, for monitoring the process following the GBE distribution. Monte Carlo simulation method is employed to obtain the run length (<em>RL</em>) properties, i.e., the average <em>RL</em>, standard deviation of <em>RL</em>, and median of <em>RL</em>, of the proposed monitoring scheme. By selecting different smoothing parameter, the charting parameters of the proposed AMEWMA GBE chart are obtained and the corresponding out-of-control <em>RL</em> performances are studied for different change sizes. A detailed comparative analysis is conducted between the proposed chart and some existing multivariate GBE charts. The findings indicate that the proposed AMEWMA GBE chart generally performs better than the competitors for all sizes of change, in terms of different <em>RL</em> measures. Moreover, in detecting a wide range of changes, it significantly outperforms its counterparts in terms of the <em>RL</em>'s overall performance measures. Finally, a genuine dataset of patient headache relief times is utilized to demonstrate the application and execution of the AMEWMA GBE chart.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 8","pages":"Article 103437"},"PeriodicalIF":6.0,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922360","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}