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2020

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Articles 1471 - 1500 of 10640

Full-Text Articles in Engineering

Simulation Research On Optimization Of Agv Charging Strategy For Automated Terminal, Danlan Xie, Guo Di, Ji Yuan, Zhipeng Gao Oct 2020

Simulation Research On Optimization Of Agv Charging Strategy For Automated Terminal, Danlan Xie, Guo Di, Ji Yuan, Zhipeng Gao

Journal of System Simulation

Abstract: As the automated container terminal is the development trend of terminal, AGV (automated guided vehicle) becomes the most widely used horizontal transportation tool and it is important to make its reasonable charging strategy. Aiming at the shortcomings of the current AGV, a charging strategy of offline charging being primary and online charging being auxiliary is proposed. In order to solve the problem of location selection of online charging station, a quick method of selecting effective stations by using heat zone map is proposed. Through a large number of simulation experiments using this strategy, the fact that the number …

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Global Optimization Method Based On Consensus Particle Swarm Optimization, Zhanwen Lu, Xingong Cheng, Yongfeng Zhang Oct 2020

Global Optimization Method Based On Consensus Particle Swarm Optimization, Zhanwen Lu, Xingong Cheng, Yongfeng Zhang

Journal of System Simulation

Abstract: According to the characteristics of particle swarm optimization (PSO) and efficient global optimization algorithm (EGO), a global black box optimization algorithm based on consensus particle swarm optimization and local surrogate model (CPSO-LSM) is proposed. The algorithm fixes the period of the PSO algorithm to group the particles and stops after the particles reach a consensus. The high-quality sub-regions around each group of particles are used as the modeling area of the surrogate model, and the high-quality optimal solution or global optimal solution is obtained by comparing the optimal values of each region. It can not only avoid the complex …

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Natural Computing Method Based On Lle Dimension Reduction, Luyao Zhang, Weidong Ji, Cheng Hao Oct 2020

Natural Computing Method Based On Lle Dimension Reduction, Luyao Zhang, Weidong Ji, Cheng Hao

Journal of System Simulation

Abstract: In the natural computing method, the appearance of high-dimensional problem can make some existing optimization algorithms avoid falling into local optimum, but it makes the performance of the algorithm worse and the running time longer. On the basis of traditional natural calculation method, a natural calculation method based on LLE(Local Linear Embedding) algorithm is proposed, which analyzes the value of neighbor particle k and dimension d, and makes the algorithm get better optimization effect after dimension reduction. In the process, a small bias s is added to the data after dimension reduction to increase the diversity of …

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Research On Distribution Line Identification And Simulation Based On Sequence Impedance Method, Keyan Liu, Weijie Dong, Xueshun Ye, Muke Bai, Huaitian Zhang Oct 2020

Research On Distribution Line Identification And Simulation Based On Sequence Impedance Method, Keyan Liu, Weijie Dong, Xueshun Ye, Muke Bai, Huaitian Zhang

Journal of System Simulation

Abstract: The field fault test of distribution network cannot be repeated frequently, a line parameter identification and fault waveform reproduction method based on sequence impedance method is proposed to build the line sequence resistance model, and the π type equivalent lines are constructed. Based on the data of each node obtained in the field test process, the positive sequence impedance and zero sequence impedance parameters of π type equivalent circuits of all line sections are obtained by using the principle of symmetrical sequence components, and the digital model of the real lines in the field is established. The simulation results …

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Research On Fuzzy Flexible Job Shop Scheduling Problem Based On Hybrid Qpso, Junxuan Li, Wang Yan, Zhicheng Ji Oct 2020

Research On Fuzzy Flexible Job Shop Scheduling Problem Based On Hybrid Qpso, Junxuan Li, Wang Yan, Zhicheng Ji

Journal of System Simulation

Abstract: To solve the flexible job shop scheduling problem of uncertain processing time, triangular fuzzy numbers are used to characterize the relevant time parameters and a Hybrid Quantum Particle Swarm Optimization (HQPSO) is proposed. On the basis of making full use of the global search capability of Quantum Particle Swarm Optimization, the search efficiency is increased by designing a boundary repair strategy and a cooperative update strategy. Meanwhile, the cross-operator and path relinking technique are used to in the operation sequence mapped by the excellent particles, which makes up the disadvantages of the insufficient ability of deeply exploration of …

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Adaptive Control Method Of High Proportion Distributed Generation Connected To Distribution Network, Weijie Dong, Keyan Liu, Yilong Wang, Xiaozhong Li, Yang Hao Oct 2020

Adaptive Control Method Of High Proportion Distributed Generation Connected To Distribution Network, Weijie Dong, Keyan Liu, Yilong Wang, Xiaozhong Li, Yang Hao

Journal of System Simulation

Abstract: Focus on the instability of the reactive power output precision caused by the voltage drop and loss of DG lines being switched to grid and the low output frequency and voltage caused by power deficiency of DG islanding, an improved droop control strategy is proposed to ensure the running stability of Active Distribution Network during DG connecting to network. The DG model applies the feedback regulation of f-U droop output power and voltage drop compensator. The control system is applied to the quasi-synchronization grid-connected model, island mode and the modes switching process of an active distribution network's domain transient …

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Optimization Of Shore Bridge Driver Scheduling Strategy Considering Influence Of Illumination, Tiexin Wang, Haihong Yu, Danlan Xie, Yibin Wang Oct 2020

Optimization Of Shore Bridge Driver Scheduling Strategy Considering Influence Of Illumination, Tiexin Wang, Haihong Yu, Danlan Xie, Yibin Wang

Journal of System Simulation

Abstract: The luminous environment has an important effect on the efficiency of quay crane drivers' work. Aiming at the quay crane drivers' shift arrangement under the changing illumination intensity, the theoretical model of illumination influencing efficiency and the 3D simulation model of port operation are established. The influence of different lighting conditions on quay crane drivers' work is analyzed to find the optimal scheduling strategy. By comparing four different scheduling strategies, the optimal 6h interval scheduling is obtained, which increases the working efficiency by about 14% compared with the existing scheduling methods. It shows that when the total working …

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Mucilage-Capped Silver Nanoparticles For Glucose Electrochemical Sensing And Fuel Cell Applications, Ziad Khalifa, Moustafa Zahran Dr, Magdy Zahran Prof, Magdi Abdel Azzem Prof Oct 2020

Mucilage-Capped Silver Nanoparticles For Glucose Electrochemical Sensing And Fuel Cell Applications, Ziad Khalifa, Moustafa Zahran Dr, Magdy Zahran Prof, Magdi Abdel Azzem Prof

Chemical Engineering

A simple, cost-effective and green mucilage-capped silver nanoparticles (Mucilage-AgNPs) modified glassy carbon electrode (GC) composite was constructed for efficient and facile electrochemical oxidation of glucose for the first time. Mucilage-AgNPs were synthesized through the direct chemical reduction of Ag+ by mucilage extracted from Opuntia ficus-indica. Mucilage-AgNPs were identified and characterized using ultraviolet-visible spectroscopy, transmission electron microscopy and square wave voltammetry. Modification of the GC with AgNPs was carried out via a transfer-sticking technique with an immobilization time of 1 h. The Mucilage-AgNPs/GC composite was studied as a possible anode for glucose oxidation in a biofuel cell. The composite resulted in …

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Cascading Failure Analysis Of Equipment Support Network Based On Sirv Virus Propagation Theory, Zhang Qiang, Junhai Cao, Tailiang Song, Haidong Du, Chuang Zhang Oct 2020

Cascading Failure Analysis Of Equipment Support Network Based On Sirv Virus Propagation Theory, Zhang Qiang, Junhai Cao, Tailiang Song, Haidong Du, Chuang Zhang

Journal of System Simulation

Abstract: According to the complexity phenomenon of equipment support network being attacked by the enemy, the similarity between network cascading process and virus propagation process is compared and analyzed. On the basis of the existing load capacity cascading failure model, the process of virus immune propagation is integrated, four different states of support nodes are defined, and the cascade transmission model of equipment support network is constructed, which can better reproduce the real situation of our support organization being attacked by the enemy and public opinion. The simulation and comparison shows that when the defense resources are limited and the …

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Research On Autonomous Berthing For Unmanned Ship Based On Berth Coordinates, Yupeng Jia, Yin Yong, Zhongxian Zhu Oct 2020

Research On Autonomous Berthing For Unmanned Ship Based On Berth Coordinates, Yupeng Jia, Yin Yong, Zhongxian Zhu

Journal of System Simulation

Abstract: Aiming at the problem that the neural network autonomous docking controllers can only complete the docking of a specific ports, but cannot extend to other ports without training data, a coordinate system (berth coordinates with the berth vertex as theorigin and the shoreline as the Y Axis) is proposed. The relative position is used to train the controller. In V.Dragon-5000 navigation simulator, the container ship “Yinhe” is selected. After docking training at Dalian port, the docking controller is successfully extended to Shenzhen Shekou port and Singapore Changi port without training data. The simulation verifies that the application …

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Online Implementation Of Structural Analysis Tool For Remote Learning, Ghada El-Mahdy, Amany Micheal Oct 2020

Online Implementation Of Structural Analysis Tool For Remote Learning, Ghada El-Mahdy, Amany Micheal

Civil Engineering

The delivery of a structural analysis module to architectural or civil engineering students needs the visualization of certain diagrams, such as the internal force diagrams and the elastic line. These diagrams are difficult to grasp for students new to structural analysis and need a lot of practice to become proficient in drawing them. Current structural analysis textbooks with electronic platforms do not include tools to draw the internal force diagrams or deflection. This has led to the initiative of creating an online structural analysis tool to enable the student to easily apply different loadings on different statical systems to draw …

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Modeling Research On Assessment System For Army Maintenance Work Capacity, Haidong Du, Junhai Cao, Fusheng Liu Oct 2020

Modeling Research On Assessment System For Army Maintenance Work Capacity, Haidong Du, Junhai Cao, Fusheng Liu

Journal of System Simulation

Abstract: A set of simulation model design scheme is proposed to meet the needs of maintenance simulation evaluation of combined army. After analyzing the principle of simulation evaluation of military maintenance capability, the requirements of the evaluation model is analyzed. The generation of maintenance tasks and the modeling scheme of maintenance support system are given; On the basis of the spare parts scheduling and the use process of support equipment, the maintenance support resource model is designed. The modeling basis for the evaluation of equipment maintenance capability of the combined army is provided, which supports the design and application case …

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Nature Computation Of Self-Adaptive Dynamic Control Strategy Of Population Grouping, Wanlu Ni, Weidong Ji, Xiaoqing Sun Oct 2020

Nature Computation Of Self-Adaptive Dynamic Control Strategy Of Population Grouping, Wanlu Ni, Weidong Ji, Xiaoqing Sun

Journal of System Simulation

Abstract: Multi-population optimization method can solve the optimization difficulty caused by the increase of data volume, but the existing population grouping is carried out by means of random grouping or artificial setting, which doesn't take particle trajectories into full consideration. In view of the problem a self-adaptive dynamic control strategy of population grouping is proposed, which uses Gaussian fitting function as the reference curve of population grouping and divides sub populations according to the function's monotone interval. For particles with the trend of crossing the upper boundary of sub populations, the contrarian strategy is adopted to maintain the population diversity …

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Research On Modeling And Process Parameters Optimization Of Glcn Fermentation Process, Wanli Yu, Wang Yan, Zhicheng Ji Oct 2020

Research On Modeling And Process Parameters Optimization Of Glcn Fermentation Process, Wanli Yu, Wang Yan, Zhicheng Ji

Journal of System Simulation

Abstract: In view of the high price and low detection accuracy of biosensors, which makes it difficult to obtain accurate and real-time biological parameters in the process of GlcN fermentation, the Least Square Support Vector Machine (LSSVM) model is established to predict the cell concentration, product concentration and substrate concentration. In order to improve the accuracy of the prediction model, the improved multiverse optimization algorithm based on Levy flight is utilized to optimize several parameters of the LSSVM model. On the basis of the model aiming at the maximum product concentration at the time of fermentation completion, the fermentation process …

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Chemical Cluster Cooperative Patrolling Strategy Based On Game Theory, Feiran Chen, Bin Chen, Zhengqiu Zhu, Xiaogang Qiu, Yiduo Wang, Zhao Yong Oct 2020

Chemical Cluster Cooperative Patrolling Strategy Based On Game Theory, Feiran Chen, Bin Chen, Zhengqiu Zhu, Xiaogang Qiu, Yiduo Wang, Zhao Yong

Journal of System Simulation

Abstract: Industrial production activities in the chemical cluster pose great threats to the surrounding atmospheric environment and human health. It is necessary for the management team to strictly supervise the chemical production processes and monitor the gas emissions to ensure the air quality. One of the effective means is to patrol chemical plants in the chemical cluster. The cooperative patrolling strategy of multiple patrol vehicles based on game theory is studied. A greedy deployment algorithm to determine the initial deployment of patrol vehicles is proposed. The static partition cooperation method is used to partition the chemical cluster into multiple small …

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Research On Network Attack And Defense Situation Based On Game Theory Model And Netlogo Simulation, Xiaohu Liu, Hengwei Zhang, Yuchen Zhang, Ma Zhuang, Wenlei Lü Oct 2020

Research On Network Attack And Defense Situation Based On Game Theory Model And Netlogo Simulation, Xiaohu Liu, Hengwei Zhang, Yuchen Zhang, Ma Zhuang, Wenlei Lü

Journal of System Simulation

Abstract: Aiming at the problem that the existing modeling methods lack of the analysis on the behavior and trend of attack and defense game, the characteristics of network attack and defense game from the perspective of confrontation are analyzed Based on the static game theory of non- cooperative incomplete information, the network attack and defense game model is established, and the revenue quantification, game equilibrium calculation and decision-making of strategic confrontation result are given. The multi-agent simulation model of network attack and defense game is constructed. The simulation experiments under different strategy combinations and different initial numbers of players are …

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Chaos Control Of Permanent Magnet Synchronous Motor Based On Finite Time Lasalle Invariant Set, Zhang Yun, Wang Cong, Hongli Zhang, Ma Ping Oct 2020

Chaos Control Of Permanent Magnet Synchronous Motor Based On Finite Time Lasalle Invariant Set, Zhang Yun, Wang Cong, Hongli Zhang, Ma Ping

Journal of System Simulation

Abstract: In order to effectively restrain the chaotic behavior of permanent magnet synchronous motor, an adaptive controller is designed based on finite time theory and LaSalle invariant set theorem. The chaotic dynamics characteristics of the permanent magnet synchronous motor system are analyzed, and the parameter fields of the system in different motion states are determined. It is proved theoretically that the controller can stabilize to the equilibrium point in finite time and can automatically track the equilibrium point of the system. Simulation results show that the control scheme is concise, faster and more stable. The research results are of great …

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Simulation On Spatial-Temporal Dynamic Change Of Ocean Environment In Marine Simulators, Qianfeng Jing, Helong Shen, Zhengli Gao, Yin Yong Oct 2020

Simulation On Spatial-Temporal Dynamic Change Of Ocean Environment In Marine Simulators, Qianfeng Jing, Helong Shen, Zhengli Gao, Yin Yong

Journal of System Simulation

Abstract: Marine structures are subject to environmental interference all the time, and the simulation of the ocean environment significantly affects the realism of the marine simulators. The ocean environmental fields are generated by the numerical wave model, and the real ocean databases are developed based on SQLite. The actual wind, current, and wave information are obtained from the databases to keep consistency with the actual sea. The environmental disturbances are modeled and both the spatiotemporal-varying features and the coupling effects are brought into the simulation. The real voyage cases are reproduced by the proposed simulation method. The measured data …

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Prediction Of N-Acetylglucosamine Content Based On Rf-Ga-Bp Neural Network, Wenfeng Yang, Wang Yan, Zhichen Ji Oct 2020

Prediction Of N-Acetylglucosamine Content Based On Rf-Ga-Bp Neural Network, Wenfeng Yang, Wang Yan, Zhichen Ji

Journal of System Simulation

Abstract: In order to solve the problem that the content of N-acetylglucosamine (GlcNAc) in the process of preparing glucocosamine (GlcN) by microbial fermentation is difficult to measure online, an improved prediction algorithm based on stochastic forest algorithm, genetic algorithm and neural network algorithm is proposed. The algorithm utilizes the feature of decreasing average impurity in random forest algorithm to analyze the relevance of the input characteristics. The initial weights and thresholds of the neural networks are optimized by the genetic algorithm. A prediction model based on the RF-GA-BP algorithm is established based on the data from the fermentation process of …

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A Photovoltaic Power Forecasting Method Based On Da-Rkelm Algorithm, Mingqi Wei, Tianrui Zhang, Xiuxiu Gao, Shumei Wang Oct 2020

A Photovoltaic Power Forecasting Method Based On Da-Rkelm Algorithm, Mingqi Wei, Tianrui Zhang, Xiuxiu Gao, Shumei Wang

Journal of System Simulation

Abstract: Aiming at the power grid safety problems caused by the fluctuation and randomness of photo-voltaic power generation, a method for predicting photo-voltaic power generation of a regular nuclear limit learning machine based on the optimization of a dragonfly algorithm was proposed. Through correlation analysis, the key factors affecting the photo-voltaic power generation are determined, and the photo-voltaic power prediction model is constructed. Dragonfly algorithm is used to obtain the optimal weight and threshold value of the network, and regularization function and kernel function are introduced based on the standard limit learning machine to avoid the over …

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Research On Simulation Optimization Of Intelligent Storage Robot Configuration Under Multiple Constraints, Guo Di, Danlan Xie, Ji Yuan Oct 2020

Research On Simulation Optimization Of Intelligent Storage Robot Configuration Under Multiple Constraints, Guo Di, Danlan Xie, Ji Yuan

Journal of System Simulation

Abstract: Aiming at the intelligent warehouse storage robot configuration, a discrete event simulation model based on queuing theory is constructed. Considering the influence of faults and the reliability and service intensity of the system, aiming at minimizing the total cost of distance cost, time cost, idle cost and purchase cost, a based on FlexSim simulation model is proposed. Discrete event simulation optimization method of the platform. By analyzing the system average team length, order average stay time and other indicators, the intuitionistic bottleneck of the system is combined with the actual operation data, and the configuration strategy of minimum system …

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Optimization And Simulation Of Offshore Edge Computing Network For E-Pilotage, Bin Lin, Chenchen Song, Yajing Zhang, Jianli Duan Oct 2020

Optimization And Simulation Of Offshore Edge Computing Network For E-Pilotage, Bin Lin, Chenchen Song, Yajing Zhang, Jianli Duan

Journal of System Simulation

Abstract: In order to improve the safety of the ship's piloting process, an INA-based offshore edge computing network (IOECN) architecture is proposed to provide navigation assistance information. The Layout Optimization Problem (LOP) of network element nodes in the network is mainly studied. The mathematical model is used to convert the LOP into an Integer Linear Programming (ILP) problem. On condition of the required network coverage and connectivity, aiming to minimize the network cost, being solved by Gurobi and simulated and demonstrated by Matlab, the network optimization on different scales is obtained and the correctness and scalability of …

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Case Study: Unsaturated Embankment Failure On Soft Soils, Ghada Ellithy, Timothy D. Stark Oct 2020

Case Study: Unsaturated Embankment Failure On Soft Soils, Ghada Ellithy, Timothy D. Stark

Publications

This paper describes the application of unsaturated soil mechanics to an interstate connecting-ramp embankment that failed during construction. Specifically, matric suction is incorporated into the calculation of the tension crack (TC) depth induced by desiccation and strain incompatibility and the contribution of matric suction to embankment shear strength. The results are compared with field observations to assess the viability of unsaturated soil mechanics in modeling compacted embankments in stability analyses. Results from this study suggest that using unsaturated shear strength parameters while introducing a TC in the compacted fill yields a reasonable inverse analysis of this interstate embankment. This may …

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إحياء مقوماتنا الثقافية العربية للبيئة العمرانية الصحراوية المستدامة, وليد فؤاد عمر Oct 2020

إحياء مقوماتنا الثقافية العربية للبيئة العمرانية الصحراوية المستدامة, وليد فؤاد عمر

Architecture and Planning Journal (APJ)

ما هو السبيل إلي الحفاظ علي ثقافة وتقاليد مجتمع متماسك بتعاليم الدين الإسلامي في بيئة عمرانية صحراوية مستغربة في زمن العولمة والانترنت والإغراءات التكنولوجية المتطورة والصراعات المتنافسة علي استقطاب مجتمعات مستهلكة للتكنولوجيا المتقدمة وتؤثر بالسلب علي بقاء تلك الثقافات القديمة ، في وقت تلاشت فيه المبادئ والقيم في كثير من المجتمعات خاصة الغربية ، وفي طريقها للاندثار في بعض المجتمعات العربية ، فأصبحنا بلا هاوية وبلا مستقبل لأصولنا الحضارية ، فلا استطعنا ملاحقة ما فقدناه أو ما سبقنا إليه آخرون أكثر تقدما ، ولا احتفظنا بتراثنا وثقافتنا وتقاليدنا القديمة الأصيلة والتي كانت في يوم ما المثال الأكثر تقدما وتحضرا وتفي …

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تأثير الجيل الثالث للثورة الرقميةعلى صياغة تشكيل الكتل المعمارية والعمرانية المعاصرة, محمد وهبه إبراهيم Oct 2020

تأثير الجيل الثالث للثورة الرقميةعلى صياغة تشكيل الكتل المعمارية والعمرانية المعاصرة, محمد وهبه إبراهيم

Architecture and Planning Journal (APJ)

Since the earliest beginning of history, architectural fortresses have acquired varied forms and masses. It was possible to interpret justifications for using many of them; however, usage of some of these forms and masses is still considered as a perplexing mystery for scholars, analysts and interested persons in the topic of mass formulation in architecture. For example, the Giza Pyramids in Egypt which were built 4500 years ago, whose pyramidal mass, which was the output of several astronomic and mathematical relations in the pyramid form, the world is still till our present day analyzing the inherent ideas beyond them. Throughout …

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Design Principles For Urban Open Spaces In Makkah Central Area, محمد بن عبد الله إدريس Oct 2020

Design Principles For Urban Open Spaces In Makkah Central Area, محمد بن عبد الله إدريس

Architecture and Planning Journal (APJ)

The urban development of the central area of Makkah city during the last decade concentrated on the expansion of the holy mosque and residential projects which increase the density while it neglected to provide urban open spaces which are considered as an essential element of the urban fabric. At the same time existing urban open spaces lack the basic requirements and suffer from the unacceptable density comparing with the international standards which affect users' safety and security. This study which follow the analytical, descriptive approach and depends on literature review and field data, will explore the existing situation of the …

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العمارة التقليدية الأردنية وإمكانية توظيفها في العمارة الحديثة دراسة تحليلية لنماذج معمارية تقليدية في محافظة المفرق, إبراهيم موفق الحداد, عبد العزيز محمود Oct 2020

العمارة التقليدية الأردنية وإمكانية توظيفها في العمارة الحديثة دراسة تحليلية لنماذج معمارية تقليدية في محافظة المفرق, إبراهيم موفق الحداد, عبد العزيز محمود

Architecture and Planning Journal (APJ)

تتناول الدراسة أنماط المساكن التقليدية في الأردن من حيث الكتلة المعمارية ومواد البناء والتصميم المعماري، وتحليل العناصر المعمارية وطريقة تنفيذها من مواد البيئة المحلية وبطرق إنشائية تقليدية – فطرية متوارثة ودراسة الثقافة المادية للمجتمع المحلي المتجسدة بالمساكن التقليدية ومدى ارتباطها العضوي بالبيئة المحلية، والتي عبر عنها المسكن العائلي الذي ارتبط بالبيئة الطبيعية للمكان والثقافية للمجتمع حيث تظهر بأكثر من صبغة مثل الصبغة المكانية-الايكولوجية والتي تظهر مدى ارتباط الإنسان ببيئته وتنظيمه للمكان بهدف تلبية حاجاته الأساسية من المسكن الذي يؤدي وظائف من مأوى وحماية وتأمين الراحة الجسدية والنفسية، وكذلك الصبغة المتصلة بالاستدامة كون المساكن التقليدية من أفضل الأنظمة المعمارية التي تؤشر …

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ملامح تصميم المعارض العالمية بالقرن الحادي والعشرين, شريف محمد ربيع خشبة Oct 2020

ملامح تصميم المعارض العالمية بالقرن الحادي والعشرين, شريف محمد ربيع خشبة

Architecture and Planning Journal (APJ)

بدراسة الوضع الحالي للمعارض العالمية بالقرن الحادي والعشرين لوحظ وجود ملامح تصميمية تميزها ، على المستوى المعماري و العمراني وارتباطها بسمات مميزة نتيجة تأثرها بالتطورات الحديثة ، مما أدي لظهور ملامح تصميمية تميز تلك المعارض . وقد ركز البحث علي دراسة أحدث المستجدات في تصميم المعارض ، لذلك فقد تم تحديد مجال الدراسة بالمعارض المقامة أو التي تم تطويرها في القرن الحادي والعشرين ، واقتصرت عمليات رصد وتحليل المعارض علي تلك الفترة. ويحدد البحث أركان المنظومة المؤثرة علي تصميم المعارض بالقرن الحادي والعشرين ،والتي قسمها البحث إلي ملامح عمرانية ومعمارية مع التوجهات التكنولوجية والرقمية والبيئية ، وقام البحث بعمل استعراض …

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The Use Of Smart Geomtry In Islamic Patterns A Generative Approach To The Restoration Of The Islamic Urban Areas, Mohammed A. Nasr Oct 2020

The Use Of Smart Geomtry In Islamic Patterns A Generative Approach To The Restoration Of The Islamic Urban Areas, Mohammed A. Nasr

Architecture and Planning Journal (APJ)

Geometry is an essential design generator in the Islamic architectural style. Islamic styles are distinct for using the art of geometry in their creative designs. In the Islamic designs, geometry represents the order, harmony and beauty in calculations, scale and proportion. It clearly exists in the design of plans, façade, ornaments and patterns. It expresses many concepts of Islam such as the unity and the oneness of Allah, the perfection and the infinity of creation in the universe, the containments and the continuity. The main proportions of the Islamic style depend on the square proportions(ex: Islamic proportion 1:√2 (Williams, 2006), …

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Analyzing Fan Zones Hierarchy In The City At Football Mega Event; Appli Analyzing Fan Zones Hierarchy In The City At Football Mega Event; Applied Study: Borg El Arab Stadium, Alexandria, Egypt, Walaa Yoseph El-Sayed Oct 2020

Analyzing Fan Zones Hierarchy In The City At Football Mega Event; Appli Analyzing Fan Zones Hierarchy In The City At Football Mega Event; Applied Study: Borg El Arab Stadium, Alexandria, Egypt, Walaa Yoseph El-Sayed

Architecture and Planning Journal (APJ)

Fan Zones is not just a seat in the amphitheater; it is a holistic concept deals with fans motions and requirements since their involvement in the city. Since the beginning of football game and championship; fan zones had witness a series of upgrading sequential mega events; this upgrading or development was according to contemporary aspects and age requirement. By the beginning of the Third Millennium; fan zones were the main motive that shaped and developed stadia characters; whereas fans were the spirit of the mega event and the first priority in designing the national & international stadia as well as …

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