Ain Shams Engineering Journal最新文献_第7页

Stimulating architects’ mental imagery reaching innovation: Lessons from urban history in using analogies and metaphors 激发建筑师的思维想象，实现创新：使用类比和隐喻的城市历史教训

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-02 DOI: 10.1016/j.asej.2024.102933

Hisham Abusaada , Abeer Elshater

{"title":"Stimulating architects’ mental imagery reaching innovation: Lessons from urban history in using analogies and metaphors","authors":"Hisham Abusaada , Abeer Elshater","doi":"10.1016/j.asej.2024.102933","DOIUrl":"10.1016/j.asej.2024.102933","url":null,"abstract":"<div><p>This review article explores how metaphors and analogies used throughout urban history can simulate mental imagery to inspire innovation. The study addresses three critical questions using qualitative literature review methods like text data mining and content analysis. The results yielded from the first question showed a link between mental imagery and architectural discourse. The second question yielded the crucial role of metaphor and analogy as literary devices that can enhance mental imagery. The answer to the third question yielded five procedures of how literary devices foster innovation. The discussion found a complex interplay between recalling mental imagery and imagination and using metaphors and analogies. While recognizing their effectiveness in inspiring innovative ideas, the review cautions against oversimplification and cultural biases. The review of literature offers a nuanced understanding of their theoretical and practical foundations, shedding light on their role in shaping architectural mental imagery within urban history narratives.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924003083/pdfft?md5=93e1024a6d7a72943d38580adb2d3fe8&pid=1-s2.0-S2090447924003083-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141693699","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}

引用次数: 0

An equivalent study regarding polynomial DQM and B-spline based DQM via 1D and 2D Hyperbolic Telegraph equation 通过 1D 和 <mml 对多项式 DQM 和基于 B 样条的 DQM 进行等效研究：

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-02 DOI: 10.1016/j.asej.2024.102922

Mamta Kapoor

{"title":"An equivalent study regarding polynomial DQM and B-spline based DQM via 1D and 2D Hyperbolic Telegraph equation","authors":"Mamta Kapoor","doi":"10.1016/j.asej.2024.102922","DOIUrl":"10.1016/j.asej.2024.102922","url":null,"abstract":"<div><p>A discussion of numerical results for <span><math><mrow><mn>1</mn><mi>D</mi></mrow></math></span> and <span><math><mrow><mn>2</mn><mi>D</mi></mrow></math></span> Hyperbolic Telegraph equations is primary objective of this paper. In this article, Hyperbolic Telegraph equation is addressed using Lagrange Interpolation Polynomial DQM and NUAH B-spline DQM, respectively, as Method I and Method II. In Method I, necessary weighting coefficients are identified using DQM and the Lagrange interpolation polynomial basis function. NUAH B-spline is used in DQM in Method II. Exact and numerical results are represented graphically, and they match across several grid places, confirming effectiveness and simplicity of current approach. <span><math><mrow><msub><mi>L</mi><mi>∞</mi></msub></mrow></math></span> and Absolute errors are shown. It has been observed that results from DQM based on polynomials are superior than those from B-spline based methods. Via error reduction, Method I is more effective. A thorough analysis comparing the errors with the piece of present research is also included to support the argument that polynomial-based DQM is more efficient than B-spline-based DQM.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924002971/pdfft?md5=467d4f175f574f6971f88ccde485018b&pid=1-s2.0-S2090447924002971-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699262","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}

引用次数: 0

Microstrip patch antenna directivity optimization via Taguchi method 通过田口方法优化微带贴片天线指向性

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-02 DOI: 10.1016/j.asej.2024.102923

Mohd H.S. Alrashdan , Zouhair Al-qudah , Mohammad Al Bataineh

{"title":"Microstrip patch antenna directivity optimization via Taguchi method","authors":"Mohd H.S. Alrashdan , Zouhair Al-qudah , Mohammad Al Bataineh","doi":"10.1016/j.asej.2024.102923","DOIUrl":"10.1016/j.asej.2024.102923","url":null,"abstract":"<div><p>Microstrip patch antennas have gained popularity due to their compact size, flat design, cost-efficiency, and ability to accommodate various design needs. Despite their advantages, optimizing directional properties for peak performance remains challenging. This study employs the Taguchi method, a statistical technique, to regulate the directivity of microstrip patch antennas. Thirteen input control factors are adjusted, including the patch dimensions, substrate, slot, feed line, array, and operating frequency. The Taguchi method efficiently assesses multiple experimental variables, minimizing the need for extensive experiments. The study identifies the frequency and the width of the extended feed line along the Y-axis as the most critical factors influencing directivity. The Taguchi analysis results are validated through the main effect screener analysis (MESA). As a case study, microstrip patch antennas with 30 dB directivity are designed using a tuning process of the control factors based on Taguchi results and COMSOL Multiphysics software. The simulated results at 40 GHz include a reflection coefficient of −0.098612 dB, lumped port impedance of 0.37939 + 29.012i Ω, and elevation (θ) and azimuth angles (φ) measuring 0.0 degrees. These findings indicate that the radiation pattern is being assessed in the broadside direction, directly perpendicular to the antenna, resulting in a directivity of 30 dB. This study offers a structured approach and methodology for both researchers and manufacturers to craft microstrip patch antennas tailored to precise applications, thereby minimizing the need for trial-and-error techniques. The outcomes contribute significantly to enhancing the efficacy of microstrip patch antennas across various domains such as communication, radar technology, and satellite communication.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924002983/pdfft?md5=caeb59622af32c89637bceeea05f8de5&pid=1-s2.0-S2090447924002983-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141705459","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}

引用次数: 0

A stability improvement control strategy research for LLC resonant converter with single neuron PI-I double closed loop control 采用单神经元 PI-I 双闭环控制的 LLC 谐振转换器稳定性改进控制策略研究

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-01 DOI: 10.1016/j.asej.2024.102934

Zhangang Yang , Qingyu Zhou

{"title":"A stability improvement control strategy research for LLC resonant converter with single neuron PI-I double closed loop control","authors":"Zhangang Yang , Qingyu Zhou","doi":"10.1016/j.asej.2024.102934","DOIUrl":"10.1016/j.asej.2024.102934","url":null,"abstract":"<div><p>LLC resonant converters are widely used in the aerospace field. However, under traditional single-loop control, LLC resonant converters are prone to instability in the face of high-power load disturbances, which fails to meet the high stability requirements of the aerospace field. In order to enhance the stability and disturbance rejection capability of the LLC resonant converter, this paper proposes a stability improvement strategy with additional resonant voltage integral control based on the generalized state-space aver-aged model of the LLC resonant converter. By combining eigenvalue sensitivity analysis and eigenvalue analysis theory, the system stability is further optimized. To achieve control parameter adaptive adjustment, a single neuron algorithm is introduced, resulting in an LLC resonant converter with a single neuron PI-I double closed-loop control. Simulation results indicate that the proposed LLC resonant converter with single neuron PI-I double closed-loop control exhibits improved stability compared to the LLC resonant converter under traditional single-loop control.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924003095/pdfft?md5=1bccc86ed9d4f5aa89c1ec6ae0e569bf&pid=1-s2.0-S2090447924003095-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141706649","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}

引用次数: 0

An investigation on fuzzy optimal cut vertices and fuzzy optimal cut edges with their applications 模糊最优切顶和模糊最优切边及其应用研究

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-01 DOI: 10.1016/j.asej.2024.102921

Junye Ma , Lijing Shen , Lin Li

引用次数: 0

Enhancing earthquakes and quarry blasts discrimination using machine learning based on three seismic parameters 利用基于三个地震参数的机器学习提高地震和采石场爆炸的辨别能力

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-01 DOI: 10.1016/j.asej.2024.102925

Mohamed S. Abdalzaher , Moez Krichen , Mostafa M. Fouda

{"title":"Enhancing earthquakes and quarry blasts discrimination using machine learning based on three seismic parameters","authors":"Mohamed S. Abdalzaher , Moez Krichen , Mostafa M. Fouda","doi":"10.1016/j.asej.2024.102925","DOIUrl":"10.1016/j.asej.2024.102925","url":null,"abstract":"<div><p>Explosions and other artificial seismic sources remain a major risk to human survival. Seismicity catalogs often suffer from contamination, which hinders the differentiation of tectonic and non-tectonic events. To address this issue, an automated control system is developed employing machine learning (ML) techniques to discriminate between earthquakes and quarry blasts (QBs). By using ML approaches, such as probabilistic and statistical techniques, QBs can be differentiated from natural earthquakes. The proposed method utilizes latitude, longitude, and magnitude information to improve the performance. Evaluation measures, including R2, F1-score, MCC score, and others, are employed to assess the algorithm's effectiveness. Experimental results demonstrate the superiority of the suggested method, achieving a success rate of 97.21%. The developed algorithm has significant potential for enhancing seismic hazard assessment, supporting urban development planning, and promoting safer communities by accurately discriminating between man-made and natural earthquake events.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924003009/pdfft?md5=69bfa1e49ab1ce0106907ac2618556ad&pid=1-s2.0-S2090447924003009-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141639128","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}

引用次数: 0

Electric eel foraging algorithm-based optimal control for low voltage ride through capability improvement of Grid-Connected photovoltaic power plants 基于电鳗觅食算法的优化控制，提高并网光伏电站的低电压穿越能力

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-07-01 DOI: 10.1016/j.asej.2024.102855

Nourhan A. Maged , Hany M. Hasanien , Mohammed Alharbi

{"title":"Electric eel foraging algorithm-based optimal control for low voltage ride through capability improvement of Grid-Connected photovoltaic power plants","authors":"Nourhan A. Maged , Hany M. Hasanien , Mohammed Alharbi","doi":"10.1016/j.asej.2024.102855","DOIUrl":"10.1016/j.asej.2024.102855","url":null,"abstract":"<div><p>This paper presents a novel application of the Electric Eel Foraging Optimization (EEFO) algorithm. An optimal control technique based on EEFO is used to improve grid-connected photovoltaic (PV) power plants’ low-voltage ride-through (LVRT) capabilities. The PV arrays are connected to the grid at the point of common coupling (PCC) through a DC-DC boost converter, DC-link capacitor, a grid-side inverter and a three-phase step-up transformer. The DC-DC converter circuit is implemented to obtain the maximum power point tracking operation based on the incremental conductance method. The grid-side inverter uses the cascaded control loop to regulate the DC-link voltage and the terminal voltage at the PCC. Because of its highly rapid convergence, the optimized proportional-integral (PI) controller based on the EEFO algorithm is utilized to regulate the power of electronic circuits. This paper also presents a comparative analysis among the results using the EEFO, genetic, and Particle swarm optimization algorithms. This comparison verifies the effectiveness of the control strategy based on the EEFO algorithm than other techniques. It is studied also by subject the system to symmetrical and unsymmetrical faults as well as unsuccessful circuit breaker reclosing caused by the presence of a permanent fault. MATLAB/Simulink software package is used to provide substantial validations of the proposed control technique. The LVRT capability of such a system can be improved using the proposed methodology.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924002302/pdfft?md5=35bb6737bdb49a7972072e4d0efea3c1&pid=1-s2.0-S2090447924002302-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141056083","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}

引用次数: 0

Exploring multi-soliton patterns, bifurcation analysis, and chaos in (2+1) dimensions: A study on nonlinear dynamics 探索 (2+1) 维的多孑子模式、分岔分析和混沌：非线性动力学研究

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-06-29 DOI: 10.1016/j.asej.2024.102917

Ziyad A. Alhussain

{"title":"Exploring multi-soliton patterns, bifurcation analysis, and chaos in (2+1) dimensions: A study on nonlinear dynamics","authors":"Ziyad A. Alhussain","doi":"10.1016/j.asej.2024.102917","DOIUrl":"10.1016/j.asej.2024.102917","url":null,"abstract":"<div><p>This study explores the intrinsic characteristics of the (2+1)-dimensional Schwarz-Korteweg-de Vries equation used to describe shallow water waves. The multiple solitons are successfully constructed using a technique involving multiple exponential functions. Graphical representations of the results are provided in 3D, 2D, and density plots to assess the compatibility of the solutions. Also, the dynamic nature of studied equation is examined based on bifurcation and chaos theory for nonlinear systems. Bifurcation signifies how our dynamical system is affected by physical parameters in planar dynamical system. After that, we apply the external force on planar dynamical system to show the chaotic like behavior of the studied model. Such behavior is confirmed by utilizing different chaos detecting tools. The obtained results serve to explain the effectiveness and applicability of the utilized methodologies in comprehend the exact solution and qualitative behavior of nonlinear physical models.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924002922/pdfft?md5=4547af2a2183057a593ba3ec3fab9255&pid=1-s2.0-S2090447924002922-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141638082","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}

引用次数: 0

Distance correction range-free localization algorithm for WSNs 用于 WSN 的距离校正无范围定位算法

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-06-27 DOI: 10.1016/j.asej.2024.102924

Ke Zhang , Jianyong Dai , Xiuwu Yu , Guang Zhang

{"title":"Distance correction range-free localization algorithm for WSNs","authors":"Ke Zhang , Jianyong Dai , Xiuwu Yu , Guang Zhang","doi":"10.1016/j.asej.2024.102924","DOIUrl":"10.1016/j.asej.2024.102924","url":null,"abstract":"<div><p>Accurate location information is essential for the effective deployment of Wireless Sensor Networks (WSNs) applications. Recently, researchers have developed numerous localization algorithms, with multi-hop methods being particularly attractive due to their cost-effectiveness and robustness, but their accuracy is still unsatisfactory. For better localization accuracy, this paper presented a distance correction range-free localization algorithm (DCRA). Firstly, the proposed algorithm estimates the distance between neighboring nodes based on neighbor connectivity to improve the accuracy of single-hop distance estimation. Secondly, during the multi-hop distance estimation phase, path similarity metrics are employed to ascertain the optimal path correction coefficients, thereby minimizing multi-hop distance estimation errors. Finally, based on the estimated distances, the node localization is converted into an optimization problem, which is then solved using an enhanced particle swarm algorithm to obtain the node coordinates. Simulation results show that the distance estimation accuracy of the DCRA algorithm in different node density scenarios is improved by more than 31 % and 12 % compared to the DV-Hop and DV-RND algorithms, respectively; and in terms of localization accuracy the DCRA algorithm is improved by more than 58 % and 35 % compared to the DV-Hop and DV-RND algorithms, respectively.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924002995/pdfft?md5=76ebfaff68c1e4c7912e6be76583d7ac&pid=1-s2.0-S2090447924002995-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141729268","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}

引用次数: 0

Numerical investigation of heat and mass transfer study on MHD rotatory hybrid nanofluid flow over a stretching sheet with gyrotactic microorganisms 陀螺仪微生物在拉伸片上的 MHD 旋转混合纳米流体流动的传热传质数值研究

IF 6 2区工程技术

Ain Shams Engineering Journal Pub Date : 2024-06-26 DOI: 10.1016/j.asej.2024.102918

Humaira Yasmin

{"title":"Numerical investigation of heat and mass transfer study on MHD rotatory hybrid nanofluid flow over a stretching sheet with gyrotactic microorganisms","authors":"Humaira Yasmin","doi":"10.1016/j.asej.2024.102918","DOIUrl":"10.1016/j.asej.2024.102918","url":null,"abstract":"<div><p>This study signifies the advancing reader’s understanding of complex fluid dynamics, offering insights crucial for optimizing heat transfer processes, environmental engineering applications, and biomedical technologies. The focus of this work is to examine the heat and mass transference properties of electrically conductive hybrid nanofluid flow on a bi-directional stretching surface with gyrotactic microorganisms. The effects of thermophoresis, thermal radiation, Brownian motion, heat source, and chemical reaction are incorporated into the problem. The sheet is rotated about the z-axis with ω as its velocity. The modeled equations are changed to dimensionless form with the use of similarity variables and are then solved by employing the homotopy analysis method (HAM). It is concluded that the larger rotation factor boosts the velocity plot. Similarly, the thermal radiation and thermophoretic factor heighten the thermal gradient of the hybrid nanofluid. From the computed data, it is revealed that the microorganism plot shows a declining behavior against the Peclet and Lewis numbers. The findings of this work help in the optimization of cooling systems in electronics, power plants, and automotive engines by enhancing heat transfer efficiency. Moreover, in biomedical engineering, understanding microorganism behavior in fluid flow is critical for developing advanced drug delivery systems and biomedical diagnostics.</p></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":null,"pages":null},"PeriodicalIF":6.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2090447924002934/pdfft?md5=cfb62c8cca17249c7c85193cd31fe692&pid=1-s2.0-S2090447924002934-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141729271","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}

引用次数: 0