alexandria engineering journal最新文献

{"title":"Shear thinning and shear thickening effects in radiative MHD flow of Carreau hybrid nanofluid with hall current and heat source/sink","authors":"Hossein Jafari ,&nbsp;Vishalkumar J. Prajapati ,&nbsp;Ramakanta Meher ,&nbsp;Omid Nikan","doi":"10.1016/j.aej.2025.09.060","DOIUrl":"10.1016/j.aej.2025.09.060","url":null,"abstract":"<div><div>The modeling of non-Newtonian hybrid nanofluids has garnered considerable interest recently due to their superior thermal performance and intricate rheological properties, which are essential in numerous industrial and engineering applications, including cooling systems, polymer extrusion, and material processing. This paper investigates the steady, three-dimensional, incompressible MHD flow of a Carreau hybrid nanofluid over a linearly stretchable surface. The study focuses on the influence of various physical parameters, including thermal radiation, a uniform perpendicular magnetic field, Hall current, and heat sink/source, on the fluid flow characteristics and viscosity behavior of the Carreau HNF, which exhibits both shear-thickening and shear-thinning properties. The inclusion of the Hall current induces secondary (cross-flow) motion in the system. To evaluate the effects of these parameters on velocity and temperature distributions, heat transfer rate, and surface drag force, an advanced homotopy analysis method (HAM) integrated with Lie symmetry analysis is employed. The reliability of the HAM results is validated by comparison with numerical data from previous studies, showing excellent agreement. The findings reveal that shear-thinning fluids exhibit lower local skin friction and heat transfer rates compared to shear-thickening fluids. Also, it can be noticed that the presence of Hall current reduces the heat transmission rate.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 927-943"},"PeriodicalIF":6.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217623","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 study of the effects of opening sizes and locations on large-span prestressed hollow core slab integrity","authors":"Mohamed I.S. Elmasry ,&nbsp;Omar A. Abdellatif ,&nbsp;Essam A. Elkordi","doi":"10.1016/j.aej.2025.09.038","DOIUrl":"10.1016/j.aej.2025.09.038","url":null,"abstract":"<div><div>Prestressed hollow core slabs are popular to use for constructing the ceilings of halls with large spans. However, electromechanical systems requirements for large halls mandate the inclusion of openings in ceilings. This paper studies the opening size limitations to avoid losses in prestressed hollow core slabs service capacities. Forty-one large-span slab samples are analyzed, each with different opening sizes and locations along their spans. All tested slabs are designed to comply with the national standards. A Finite element model is used to apply the testing technique. Results are compared with the ACI, European and the Egyptian standards service requirements. Results indicate that openings of variable sizes at midspan reduce the slab service capacity by nearly 18 %, reaching 43 % for openings with 50 % opening width to slab width ratio or more. A significant rise in normal stresses in flanges and extensive shear stresses in webs are observed around the openings especially for wider openings relative to the slab width. The strands around the openings in this case suffer extensive axial stresses that exceed the design limits. Meanwhile, on having large openings near supports, the deflection limits at midspans are exceeded but the loss in capacity is much lower.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 841-853"},"PeriodicalIF":6.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217620","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":"DSSINet: Dynamic token selection and spatial interaction framework for medical image segmentation","authors":"Xiaoyu Pan ,&nbsp;Weilin Xu ,&nbsp;Hanyun Xu","doi":"10.1016/j.aej.2025.09.065","DOIUrl":"10.1016/j.aej.2025.09.065","url":null,"abstract":"<div><div>Medical image segmentation plays a critical role in clinical diagnosis; however, most existing approaches struggle to balance local detail and global context, and they often fail to fully exploit multi-scale features. In this work, we introduce <strong>DSSINet</strong>, a novel framework that integrates dynamic token selection with spatial interaction to overcome these challenges. To alleviate the high computational cost and background interference inherent to Transformer-based pixel-level self-attention, we develop the Bi-Level Routing Attention (BLRA) module, which performs sparse routing at both region and token levels to focus exclusively on the top-<span><math><mi>k</mi></math></span> most relevant areas. To enhance the capture of fine-grained semantic details, we design the Feature Depth Fusion (FDF) module, establishing implicit spatial correlations between low- and high-level features to enrich multi-scale representations. We further incorporate the Adjacent Domain Perception Module (ADPM) to maintain intra-layer consistency and generate auxiliary edge maps that guide the decoding process. Finally, leveraging multi-graph inference, the Reverse Graph Decomposition (RGD) module iteratively reconstructs representations in a coarse-to-fine manner, yielding precisely refined boundaries. Extensive experiments on five public benchmarks demonstrate the effectiveness of DSSINet, achieving IoU scores of <strong>86.21%</strong> (ISIC 2016), <strong>85.25%</strong> (CVC-ClinicDB), <strong>85.30%</strong> (Kvasir-SEG), <strong>92.51%</strong> (Chest X-ray), and <strong>94.26%</strong> (REFUGE2), outperforming state-of-the-art baselines. Moreover, DSSINet significantly reduces computational costs, with <strong>82.2%</strong> fewer FLOPs and <strong>13.1%</strong> fewer parameters compared to UNet plus.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 954-968"},"PeriodicalIF":6.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217624","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":"Multi-attributive border approximation area comparison model based on Sugeno-Weber power fuzzy linguistic variables with Z-number information","authors":"Harish Garg ,&nbsp;Zeeshan Ali ,&nbsp;Luis Perez-Dominguez ,&nbsp;Ibrahim H. Hezam","doi":"10.1016/j.aej.2025.09.043","DOIUrl":"10.1016/j.aej.2025.09.043","url":null,"abstract":"<div><div>The tool of fuzzy Z-number linguistic term (FZNLT) set is significant and dominant because it integrates fuzzy set theory, linguistic set theory, Z-number theory, and uncertainty, allowing for massive accurate, and precise interpretation of incomplete, inconsistent, or vague data. It improves decision-making in problematic scenarios where traditional techniques may fall short. FZNLT set theory provides a valuable and better framework for modeling genuine-life problems with inherent ambiguity. Inspired by the above characteristics of the FZNLT set, our key goal is to design a constructive model of FZNLT sets, which is a modified form of many existing techniques. Also, construct the model of Sugeno-Weber operational laws based on valuable and dominant norms, called Sugeno-Weber t-norm (SWTN) and Sugeno-Weber t-conorm (SWTCN). Based on these operations, we analyze the power weighted aggregation operators for FZNLT information, with their certain basic properties. Additionally, the FZNLT-multi-attributive border approximation area comparison (FZNLT-MABAC) network based on Hamming distance measures for the above-proposed operators is developed. Ensemble learning is a dominant and critical model in machine learning technique that combines numerous techniques or models to enhance the performance or assessment of predictions, which is specially employed in complicated and problematic tasks such as early diabetes detection. For this, we demonstrate a numerical example to evaluate the application of ensemble learning approaches for early diabetes detection based on the above operators and construct the tool for the interpretation or comparison of the proposed theory and existing theory based on their ranking values to summarize the concluding remarks about proposed approaches.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 995-1011"},"PeriodicalIF":6.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217627","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":"On behavior of solution for delta fractional differences associated with special functions","authors":"Pshtiwan Othman Mohammed ,&nbsp;Dumitru Baleanu ,&nbsp;Meraa Arab ,&nbsp;Majeed Ahmad Yousif ,&nbsp;Shrooq Mohammed Azzo ,&nbsp;Thabet Abdeljawad","doi":"10.1016/j.aej.2025.09.050","DOIUrl":"10.1016/j.aej.2025.09.050","url":null,"abstract":"<div><div>In this paper, a general idea of Mittag-Leffler function using discrete fractional of delta-type in the Riemann–Liouville sense is initiated. Asymptotic behavior of solutions associated with the Riemann–Liouville fractional difference is proposed herein to complement its corresponding Mittag-Leffler solution related to comparison theorems. Illustrative examples are presented to support the assertions of the theoretical results. Additionally, Neural Network (NN) approximation is employed to compare and validate the numerical solutions, demonstrating its effectiveness in approximating discrete fractional problems.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 920-926"},"PeriodicalIF":6.8,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217621","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":"Corrigendum to “Numerical analysis of MIM nano-rectenna with metasurface for infrared energy harvesting” [Alex. Eng. J. 88 (2024) 105–115]","authors":"Hatem Rmili ,&nbsp;Ali Yahyaoui ,&nbsp;Jawad Yousaf ,&nbsp;Ahmed Elsharabasy ,&nbsp;Mohammed Aseeri ,&nbsp;Bandar Hakim ,&nbsp;Nebras Sobahi","doi":"10.1016/j.aej.2025.09.062","DOIUrl":"10.1016/j.aej.2025.09.062","url":null,"abstract":"","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Page 773"},"PeriodicalIF":6.8,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154130","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":"Vehicle trajectory extraction and matching using multi-UAV cooperative vehicle video data","authors":"Wang Luo ,&nbsp;Jinjun Tang ,&nbsp;Zhangcun Yan ,&nbsp;Guowen Dai ,&nbsp;Chen Yuan ,&nbsp;Yunyi Liang","doi":"10.1016/j.aej.2025.07.038","DOIUrl":"10.1016/j.aej.2025.07.038","url":null,"abstract":"<div><div>Unmanned Aerial Vehicles (UAVs), known for their high-altitude operation, wide coverage, and flexibility, are increasingly used as sensors for traffic data collection. However, the limited field of view of a single UAV poses challenges in capturing comprehensive traffic information required for medium-level and macro-level traffic flow analysis. To address this limitation, this study proposes a post-processing method for multi-UAV collaborative video to extract wide-area vehicle trajectories. The framework comprises four main components: vehicle detection, tracking, coordinate conversion, and trajectory matching. Specifically, YOLOv8 is utilized for vehicle detection, while the DeepSORT algorithm is employed for vehicle tracking. To transform pixel coordinates into real-world coordinates, a conversion matrix is obtained through camera calibration. For trajectory matching, a cost matrix between adjacent videos is constructed for multi-segment trajectories, and assignments are optimized using the Hungarian algorithm. The proposed framework is evaluated using four metrics: a correct trajectory matching rate of 0.964, a Root Mean Square Error (RMSE) of <span><math><mrow><mn>0</mn><mo>.</mo><mn>46</mn></mrow></math></span> m, a Mean Absolute Error (MAE) of <span><math><mrow><mn>0</mn><mo>.</mo><mn>51</mn></mrow></math></span> m, and a similarity score of 0.999. Experimental results demonstrate that the proposed framework effectively overcomes challenges in trajectory extraction and matching, making it a reliable approach for wide-area vehicle trajectory analysis.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 753-772"},"PeriodicalIF":6.8,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155716","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":"Mathematical modelling of Casson ternary hybrid nanofluid flow and heat transfer over a rotating disk with chemical reactions","authors":"Suguneswaran Puspanathan ,&nbsp;Kohilavani Naganthran ,&nbsp;Poo Balan Ganesan ,&nbsp;Ishak Hashim ,&nbsp;Shaher Momani","doi":"10.1016/j.aej.2025.09.033","DOIUrl":"10.1016/j.aej.2025.09.033","url":null,"abstract":"<div><div>Rotating disks involving chemical reactions find extensive applications in the medical field, particularly in optimizing chemical processes for controlled drug delivery systems, thereby improving precision in therapeutic treatments. In this study, we elucidate the behavior of fluid flow over a rotating disk with Casson ternary hybrid nanofluid with incorporation of chemical reactions. The axisymmetric flow of the rotating disk is scrutinised considering the disk’s radial shrinking/stretching and the mathematical modeling of these complex transport phenomena is governed by a set of partial differential equations. Thus, a similarity transformation approach was employed, converting the boundary layer equations into similarity equations represented as ordinary differential equations. Subsequently, the bvp4c solver in MATLAB is utilized to numerically solve the set of non-linear ordinary differential equations describing the boundary value problem. The outcomes encompass local skin friction coefficients, velocity and concentration profiles, which were determined for various values of the governing parameters. In summary, the results show that enhanced suction, a lower Casson fluid parameter, and the shrinking or stretching motion of the rotating disk notably delay boundary layer separation and reduces the skin friction. Moreover, increasing the strengths of homogeneous and heterogeneous chemical reactions markedly reduces the concentration gradients, as the accelerated reaction kinetics intensify the species conversion within the boundary layer and improves mass transfer performance. Higher stretching rates boost heat transfer by creating sharper temperature gradients near the disk surface, which indicates stronger convection and a thinner thermal boundary layer. Overall, these results offer valuable insights into optimizing heat and mass transfer in engineering systems involving non-Newtonian nanofluids under chemical reaction environments.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 774-790"},"PeriodicalIF":6.8,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155594","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":"Rheological properties of Carreau liquid model for blood flow through an elliptical heated multi-stenosed artery","authors":"M.Y. Rafiq ,&nbsp;Z. Abbas ,&nbsp;M. Younas ,&nbsp;N. Rangra ,&nbsp;H. Shahzad","doi":"10.1016/j.aej.2025.09.051","DOIUrl":"10.1016/j.aej.2025.09.051","url":null,"abstract":"<div><div>The study of blood flow through stenotic arteries is crucial, as the presence and progression of stenosis can lead to severe cardiovascular complications. This work investigates the non-Newtonian characteristics of blood flow through a multi-stenosed artery with an elliptical cross-section, modeled using the Carreau fluid model. The effects of heat transfer, incorporating viscous dissipation, are also examined. The governing equations are non-dimensionalized, and the assumption of mild stenosis is applied to simplify the model. A perturbation technique based on a polynomial approach is employed, using the square of the Weissenberg number <span><math><msup><mrow><mo>(</mo><mrow><msub><mrow><mi>W</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow><mo>)</mo></mrow><mn>2</mn></msup></math></span> as the perturbation parameter. The impact of key parameters on velocity, temperature, pressure gradient, and wall shear stress (WSS) is illustrated graphically. Additionally, Nusselt number analysis provides insights into the thermal behavior in the stenotic segments. Results reveal that increased stenosis severity notably reduces flow velocity and elevates WSS in narrowed regions. Internal heat generation and the Brinkman number significantly influence the temperature distribution, particularly along the artery's minor axis, where thermal sensitivity and dissipative effects are more pronounced. Non-Newtonian effects are dominant along the minor axis, highlighting the role of geometric confinement in enhancing shear-thinning behavior. Compared to Newtonian fluids, the Carreau model predicts lower velocities and anisotropic flow characteristics along the elliptical axes. These findings offer valuable insights into hemodynamic behavior in stenotic arteries and may aid in improving diagnostic and therapeutic strategies for vascular diseases.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 738-752"},"PeriodicalIF":6.8,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155596","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":"GOA-ACO: A goose optimized ant colony algorithm for the automated guided vehicle path planning","authors":"Xiaohe Sheng,&nbsp;Jingjin Yang,&nbsp;Liqing You,&nbsp;Jiangshan Li,&nbsp;Rui Wang","doi":"10.1016/j.aej.2025.09.036","DOIUrl":"10.1016/j.aej.2025.09.036","url":null,"abstract":"<div><div>This article proposes a goose optimized ant colony algorithm (GOA-ACO) to enhance the quality and efficiency of path optimization for Automated Guided Vehicle(AGV) in intelligent production environments. By integrating initialized parameters, the fixed parameters of the ant colony optimization algorithm(ACO) are replaced with a dynamic adjustment mechanism optimized via the goose optimization algorithm (GOA), while a sound propagation model is introduced to construct a hybrid initial solution space. In each iteration, the pheromone utilization coefficient and heuristic weight of the ACO are adjusted through the single leg balance strategy(SLBS) optimized by the GOA, thereby achieving dynamic parameter collaborative updating. An embedded inspired wake-up mechanism is incorporated into the ant path search process, and random perturbation strategy(RPS) are added to the probability formula to enhance the diversity of path selection probabilities. Furthermore, the dimension scaling factor of the GOA is employed to dynamically compress the search space, which improves the optimization efficiency and convergence speed for high-dimensional problems. Experimental results indicate that the proposed GOA-ACO achieves significant improvements in path planning performance compared to benchmark algorithms, while demonstrating stronger adaptability to practical AGV operating environments.</div></div>","PeriodicalId":7484,"journal":{"name":"alexandria engineering journal","volume":"130 ","pages":"Pages 724-737"},"PeriodicalIF":6.8,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155597","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}