Ain Shams Engineering Journal最新文献

{"title":"Machine learning algorithm for mapping computational data of water reservoir with air bubble flow column reactor","authors":"Lin Qi,&nbsp;Pingping Lu","doi":"10.1016/j.asej.2025.103275","DOIUrl":"10.1016/j.asej.2025.103275","url":null,"abstract":"<div><div>Analysis of CO₂ absorption by water-based bubble column reactors is of great importance and computational methods help understand the process and improve its efficiency. Numerical evaluation of CO₂ absorption using water in a bubble column was investigated by analysis of mass transfer in the process. The results showed that the CO₂ absorption in water was increased from 0 to around 0.53 L after 450 s and the rate of CO₂ absorption in water was decreased from 0.28 L/min to around 0 after 450 s. Then, the obtained results from the model were used for understanding these parameters in controlled environments using machine learning methodologies. We explored the predictive accuracy of regression models to estimate the concentration of CO₂ (mol/m³) across spatial (z) and temporal (t) dimensions in a controlled environment. The dataset comprises measurements collected over 451 s at varying depths, structured as a regression task to model CO₂ based on t(s) and z(m). Data preprocessing involved Z-score normalization and Isolation Forest-based outlier detection, optimizing data integrity. The methodology incorporated the Whale Optimization Algorithm (WOA) to refine model hyperparameters, enhancing performance metrics across Decision Tree (DT), K-Nearest Neighbors (KNN), and Multilayer Perceptron (MLP) models. Evaluation metrics such as R2, RMSE, and MAE indicated KNN’s superior predictive capability, demonstrating strong generalization across training, cross-validation, and testing phases. The KNN model accurately captured the non-linear spatial–temporal relationships inherent in the dataset, achieving a near-perfect R2 of 0.9991 on the training set and 0.9979 on the test set, with low RMSE (0.291) and MAE (0.042) values on the test data. These results underscore the model’s high precision in predicting concentration levels across varying depths and time, supporting its potential for applications requiring precise concentration estimations in similar contexts.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103275"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of blockchain on construction supply chain resilience: A mediated moderation model","authors":"Lin Wang ,&nbsp;Yu Zeng ,&nbsp;Yongshun Xu ,&nbsp;Ming Chi ,&nbsp;Haitao Wu","doi":"10.1016/j.asej.2024.103253","DOIUrl":"10.1016/j.asej.2024.103253","url":null,"abstract":"<div><div>In the era of globalization, enhancing construction supply chain resilience (CSCR) has become essential. Traditional supply chains face issues like information asymmetry, trust deficits, and inefficiencies, weakening their resilience. Blockchain offers a solution by improving transparency, trust, and coordination, but its impact on CSCR remains unclear. This study addresses the gap by developing a moderated mediation model to explore how blockchain influences CSCR through supply chain integration and the moderating role of environmental uncertainty. Data from 310 senior managers in Chinese construction firms were analyzed using structural equation modeling. The results showed that blockchain significantly improves CSCR, mediated by operational, informational, and relational integration, particularly under high uncertainty environments. The findings highlight blockchain’s potential to strengthen CSCR and provide theoretical insights into its mechanisms, offering practical guidance for construction companies to enhance supply chain processes through blockchain implementation.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103253"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of new modified delay and queue length methods for urban signalized intersections: A case of Antalya city","authors":"Metin Mutlu Aydin ,&nbsp;İbrahim Aydoğdu","doi":"10.1016/j.asej.2024.103246","DOIUrl":"10.1016/j.asej.2024.103246","url":null,"abstract":"<div><div>In many undeveloped and developing countries, unplanned and dysfunctional signalized intersections are prevalent due to a lack of expertise. These intersections suffer from operational and safety issues as they often fail to meet standardized criteria. Consequently, drivers tend to behave aggressively, leading to chaos and the creation of illegal lanes at intersection legs. This study examines seven problematic intersections, using American (HCM) and Australian (Akcelik) methods to assess existing delays and queue lengths. However, the error rates (MAPE) for these methods are notably high, indicating their inadequacy in assessing intersections with geometric irregularities. To address this, the study proposes modified evaluation methods using Artificial Bee Colony and Biogeography-Based Optimization, with the Modified HCM (US) method providing the most accurate results with significantly lower error rates for both delay (9.4 %) and queue length (15.1 %). This suggests that queued approaches are essential for accurately assessing intersections in countries facing geometric challenges.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103246"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gravity center trend analysis (GCTA) as a new method for determining the trends of hydro-meteorological data","authors":"Mahsum Aydin","doi":"10.1016/j.asej.2025.103278","DOIUrl":"10.1016/j.asej.2025.103278","url":null,"abstract":"<div><div>This paper introduces Gravity Centre Trend Analysis (GCTA), a new method developed to analyse the trends of time series without any data constraints. The method provides both graphical identification of trends and easy calculation of trend magnitude. In the study, the applicability of GCTA is tested using monthly precipitation data and global land–ocean temperature index between 1869–2018 in New York Central Park. The findings revealed that there is a general increasing trend in annual precipitation data, but this trend shows periodic changes in monthly data. Significant increasing trends were found in April, May and November, while decreasing trends were found in February, July and October. An increasing trend was detected in the Global Land-Ocean index data. It was evaluated that the negative impact of this increase in global warming on precipitation regimes will increase in the coming years and the frequency of flood and drought events in the region may increase.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103278"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modified progressive iterative approximation techniques for interoperable conversion of QT-Bézier and rational Bézier curve","authors":"Mohamad Ekram Nordin,&nbsp;Md Yushalify Misro","doi":"10.1016/j.asej.2024.103256","DOIUrl":"10.1016/j.asej.2024.103256","url":null,"abstract":"<div><div>This paper presents an in-depth evaluation of modified Progressive Iterative Approximation (PIA) methods for basis curve conversion and approximation, addressing critical challenges in Quadratic Trigonometric (QT) Bézier and rational Bézier curves. The novelty of this study lies in the introduction of two distinct modified PIA methods designed to efficiently transform these curves. PIA Type 1 provides a new approach for converting QT-Bézier curves into standard Bézier curves through degree elevation, solving interoperability issues across software platforms. PIA Type 2 introduces a novel method for optimizing the shape parameter <em>m</em>, enabling efficient conversion of rational Bézier curves into QT-Bézier curves. By dynamically adjusting <em>m</em>, PIA Type 2 improves curve approximation without adding extra control points, offering a more efficient alternative to traditional methods that typically increase control points to enhance accuracy. The study demonstrates that PIA Type 1 achieves highly accurate conversions with minimal errors, while PIA Type 2 highlights the significance of selecting the optimal shape parameter for effective transformations. Both methods are grounded in a robust mathematical framework, allowing precise local adjustments and enhancing both accuracy and computational efficiency. These contributions address a critical gap in curve representation by providing flexible and efficient solutions for curve conversion and approximation.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103256"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143178411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Finite time stability for Hadamard fractional-order systems","authors":"Omar Naifar ,&nbsp;Abdellatif Ben Makhlouf ,&nbsp;Lassaad Mchiri ,&nbsp;Mohamed Rhaima","doi":"10.1016/j.asej.2025.103263","DOIUrl":"10.1016/j.asej.2025.103263","url":null,"abstract":"<div><div>This paper examines the properties of finite-time stability (FTS) in the sense of Hadamard fractional-order systems. The investigation utilizes the Hadamard fractional derivative to formulate and analyze these systems, establishing FTS criteria based on the Lyapunov theory. Additionally, this paper presents a comprehensive exploration of methodologies for finite-time stabilization and observer design in these classes of Hadamard fractional order systems. The theoretical advancements are reinforced by illustrative examples and case studies, which serve to demonstrate the effectiveness and applicability of the methodologies put forth.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103263"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143178414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional analysis of LIDAR technology in optimizing efficiency and sustainability in construction sector","authors":"Ahsan Waqar ,&nbsp;Dorin Radu ,&nbsp;Badr T. Alsulami ,&nbsp;Branislav Đorđević ,&nbsp;Ahmed Fathi Mohamed Salih Ebrahim ,&nbsp;Hamad R. Almujibah","doi":"10.1016/j.asej.2024.103258","DOIUrl":"10.1016/j.asej.2024.103258","url":null,"abstract":"<div><div>The construction is fraught with growing environmental and efficiency issues contributing a significant percentage toward the use of energy worldwide and carbon emission. Among several technologies that are now coming to light in the sustainable area of management of construction, one with good promise is LIDAR (Light Detection and Ranging). The purpose of this research is to fill a big knowledge gap regarding the direct impacts on construction project management from LIDAR, like cost, safety, environmental influence, precision, and efficiency. The results, therefore, demonstrate that there were significant improvements in different aspects of the system, which included time efficiency (0.27), cost-saving (0.126 average effect), safety (0.148), and reduction of environmental impact (0.372). Equally, the value of the predictive relevance Q² = 0.529 further highlights the capability of the model for accurate predictions. This study supports the view that integration of LIDAR may be a strategic enabler of sustainable practice.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103258"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143178727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A deep learning behavior analysis model for efficient video surveillance using multi pose features","authors":"Shana L ,&nbsp;Seldev Christopher C","doi":"10.1016/j.asej.2024.103245","DOIUrl":"10.1016/j.asej.2024.103245","url":null,"abstract":"<div><div>Organizational security is addressed via a variety of ways, with video surveillance listed as a crucial element. Many firms use video surveillance to monitor their environments and processes, as well as to enforce security. Several designs have previously been presented, which use action templates, shapes, and other aspects to identify the activity. However, the proposed CCMMBAM model need to perform better in the classification of activity. OKUTAMA-Action collection contains images of humans in several poses. The approach uses continuous categorization to do video surveillance and increase security. Input photos are segmented using Modified threshold-centric K-means clustering. In each session, the process keeps distinct activity templates for different positions. The features were then optimized using a quadratic discriminate analysis, followed by training a convolutional neural network to accomplish the action classification. Similarly, the approach retrieves information such as edge mobility, gray parts, and a binary pattern. As a result, the neurons are programmed to calculate Behavioral Edge Support (BES), Behavioral Pattern Support (BPS), and Behavioral Gray Covariance Support (BGCS) for various classes of actions based on the activity templates provided by the system. The approach uses continuous categorization to do video surveillance and increase security. Finally, the proposed CCMMBAM model resulted in improved categorization and object tracking accuracy.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103245"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quiescent optical solitons in magneto–optic waveguides having Kudryashov's quintuple power–law of self–phase modulation","authors":"Elsayed M.E. Zayed ,&nbsp;Mona El–Shater ,&nbsp;Ahmed M. Elsherbeny ,&nbsp;Ahmed H. Arnous ,&nbsp;Anjan Biswas ,&nbsp;Yakup Yildirim ,&nbsp;Puiu Lucian Georgescu ,&nbsp;Luminita Moraru ,&nbsp;Anwar Ja'afar Mohamad Jawad ,&nbsp;Layth Hussein","doi":"10.1016/j.asej.2025.103260","DOIUrl":"10.1016/j.asej.2025.103260","url":null,"abstract":"<div><div>This paper investigates the propagation of quiescent optical solitons in magneto-optic waveguides governed by Kudryashov's quintuple power-law of self-phase modulation, incorporating generalized temporal evolution and nonlinear chromatic dispersion. The governing model accounts for the interplay between higher-order nonlinear effects and dispersive properties, which are essential for understanding the complex dynamics of light in structured optical media. To obtain exact soliton solutions, we employ the direct algebraic method and an advanced version of the sub-ODE approach, providing a robust analytical framework for recovering a wide spectrum of soliton profiles. The derived solutions include bright, dark, and singular soliton structures. Additionally, numerical simulations are conducted to verify and illustrate the physical relevance of the analytical results, demonstrating the stability and dynamical behavior of the solitons under varying parametric conditions. The findings contribute to the theoretical foundation of magneto-optic waveguide systems and offer potential applications in advanced photonic technologies and optical communication systems.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103260"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143178420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing an efficient and optimized irrigation plan under varying water-supply regimes","authors":"Purushottam Agrawal ,&nbsp;Jitendra Sinha ,&nbsp;Nilima Jangre ,&nbsp;Fanesh Kumar ,&nbsp;Kamalkant ,&nbsp;Alok Sinha ,&nbsp;Ashwin Singh ,&nbsp;Ashes Banerjee ,&nbsp;Akella Satya Venkatesh ,&nbsp;Srinivas Pasupuleti","doi":"10.1016/j.asej.2025.103272","DOIUrl":"10.1016/j.asej.2025.103272","url":null,"abstract":"<div><div>Crop development relies on water availability, needs, and application, necessitating large irrigation projects to ensure sustainable and equitable agriculture in the long term. This study investigates water losses and gaps during paddy cultivation in India’s tropical semi-arid region, where agriculture is the primary economic driver for communities. Given the population’s heavy reliance on rice, paddy cultivation was closely examined to identify irrigation-related vulnerabilities. An optimal irrigation plan was developed based on the analysis of the current water supply scenario for four different paddy production situations: 1) Rainfed (10 ha), 2) Rain + Canal irrigated (2174 ha), 3) Rain + Borewell + Rivulet irrigated (165 ha), and 4) Rain + Canal + Borewell irrigated (243  ha). The dependable water availability from rains and canals was calculated at a 75 % probability of exceedance to formulate an optimal water supply for the crop. Under this plan, the required water depth is reduced from 32.9  mm to 7.4  mm, saving 0.6167  Mm³ of water. In areas with optimized canal supply, no borewell water is needed for the canal-irrigated land supported by borewells (243  ha).</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 2","pages":"Article 103272"},"PeriodicalIF":6.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}