Journal of Al-Azhar University Engineering Sector最新文献_第8页

TECTONIC ARCHITECTURE AS AN APPROACH TO DESIGNING INTERACTIVE SPACES 构造建筑作为一种设计互动空间的方法

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253860

Eman Abo-Helall, Saleh Hafez, Ahmed Al Kurdi

{"title":"TECTONIC ARCHITECTURE AS AN APPROACH TO DESIGNING INTERACTIVE SPACES","authors":"Eman Abo-Helall, Saleh Hafez, Ahmed Al Kurdi","doi":"10.21608/auej.2022.253860","DOIUrl":"https://doi.org/10.21608/auej.2022.253860","url":null,"abstract":"This study aims to clarify the importance of tectonic buildings and flexibility of the interactive spaces in them and appears the basic relationship between construction and architecture since the beginning of thinking about the building, And how atectonic construction helps when they are one of the main determinants of the architectural design process to transforming architectural thought from a state of imagination to a state of tangible and visual reality. This concept has affected the internal and external spaces of the building and its interaction with the environment and the user; so to Understanding the concept of tectonics requires a strong understanding of this concept and Knowing the structural system of the building. When Looking at most of the architectural design processes, we find that the structural form rarely generates the architectural form, but comes to be responsive to design requirements and interconnected with the design concepts of the project . The importance of the study comes in the lack of research and studies that discussed architectural tectonics and This study will present some discussions regarding tectonics that developed during the past decades, up to the modern era, and the extent of its interrelationship with architecture and construction and discuss the changing concepts of tectonics and the physical and architectural importance of them and their impact on the interaction of the building with its spaces and among the users of these spaces.","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SHEAR BEHAVIOR OF SELF-COMPACTING CONCRETE BEAMS REINFORCED WITH B500WR AND STRENGTHENED WITH CFRP b500wr加筋CFRP加固自密实混凝土梁的抗剪性能

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253833

L. Sadek, Hazem Abd El-latif, S. Nabil

{"title":"SHEAR BEHAVIOR OF SELF-COMPACTING CONCRETE BEAMS REINFORCED WITH B500WR AND STRENGTHENED WITH CFRP","authors":"L. Sadek, Hazem Abd El-latif, S. Nabil","doi":"10.21608/auej.2022.253833","DOIUrl":"https://doi.org/10.21608/auej.2022.253833","url":null,"abstract":"Fiber Reinforced Polymer (FRP) has become increasingly attractive due to its advantageous low weight, high stiffness and strength-to-weight ratio, corrosion resistance, lower maintenance costs, and faster installation time. Experimental and numerical studies researches show that using (FRP) materials to strengthen reinforced concrete (RC) beams in shear is an effective method. The purpose of this paper is to study the effect of strengthening self-compacting concrete beams using carbon fiber-reinforced polymer (CFRP) fabrics with different wrapping schemes in shear. Five rectangular beams of a rectangular cross section of 100×250 mm and a length of 1650 mm were cast and tested under four-point bending. One beam was used as a control beam without external strengthening, while the other four beams were strengthened in shear using U-Wrapped CFRP with different widths and densities. The used CFRP led to an increase in the load-carrying capacity, failure load, displacement ductility ratio, and displacement ductility index, but energy ductility was decreased. The investigation results are presented in terms of ultimate load, deflection, tensile and compressive strains, and cracking pattern. relationship, between the control beam, SR, and the four strengthened beams S1, S2, S3, and S4. As shown, the deflections of strengthened beams S3 and S4 are smaller than those of the control beam up to its failure load. On the other hand, the deflections of strengthened beams S1 and S2 are more than those of the control beam for all stages of loading.","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124150109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ATTITUDE CONTROL FOR A NANO SATELLITE BY USING FUZZY AND APPROACHING INDEX SWITCHING ALGORITHM 基于模糊逼近指标切换算法的纳米卫星姿态控制

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253835

Sherif Al hosary, S. Tawfeic, T. Mekhail

引用次数: 0

EFFECT OF SPACING OF DIFFERENT TYPES OF ELECTRODES IN THE ELECTROCOAGULATION PROCESS 不同电极间距对电凝过程的影响

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253825

Reham Hussein, Anas Elmolla, A. Abdallah, Mohamed I Attia

{"title":"EFFECT OF SPACING OF DIFFERENT TYPES OF ELECTRODES IN THE ELECTROCOAGULATION PROCESS","authors":"Reham Hussein, Anas Elmolla, A. Abdallah, Mohamed I Attia","doi":"10.21608/auej.2022.253825","DOIUrl":"https://doi.org/10.21608/auej.2022.253825","url":null,"abstract":": Electrocoagulation technology is an executive method of using electrical power to rebound and flocculate pollutants without needing to add coagulations. This treatment process can remove small particles since the direct current is applied, and set them into motion. Also, electrocoagulation could decrease the remainder of waste production. This research concentrates on the use of electrocoagulation depending on a scaled open channel physical model using installed different types of electrodes such as Stainless Steel, Steel, and Aluminum to reduce the contaminants. The used electrodes have been installed parallel to the water flow direction in the stream, with a variation of four values of volts used in the experiment with the different spacing between electrodes 1cm, 2cm. The selected inflow water is Q=10 l/hr for the physical model has quality indicators limits such as COD, BOD, Total Coliform, and Fecal Coliform. The outcomes of the paper present that the best removal efficiencies depend on electro-coagulation by using Stainless Steel sheets and the spacing between these sheets equal 2cm, this distance reduces the current density Which leads to reducing the cost, also the water produced is suitable for agricultural and industrial use.","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128211609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TOP TRENDS AND CHALLENGES OF DIGITAL TECHNOLOGIES TO SUPPORT THE DESIGN OF SUSTAINABLE BUILDING FACADES AND THE STATUS OF ITS APPLICATION IN RIYADH,SA 数字技术的主要趋势和挑战支持可持续建筑立面的设计和应用的状态在利雅得,SA

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253862

شيخة الرشيد, أحمد حيا مصطفى

引用次数: 0

COMPARISON BETWEEN ELECTRICAL-POWERED AND DIESEL BUSES FOR PUBLIC TRANSPORTATION IN EGYPT 埃及公共交通电动公交车和柴油公交车的比较

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253824

Aya Abd-elhai, H. Bakry, Y. Elgohary, I. Ramadan

{"title":"COMPARISON BETWEEN ELECTRICAL-POWERED AND DIESEL BUSES FOR PUBLIC TRANSPORTATION IN EGYPT","authors":"Aya Abd-elhai, H. Bakry, Y. Elgohary, I. Ramadan","doi":"10.21608/auej.2022.253824","DOIUrl":"https://doi.org/10.21608/auej.2022.253824","url":null,"abstract":": Travel in Egypt is dominated by private cars, comprising 48.2 % of Egypt passenger trips, with limited use of all other modes. Reliance on personal automobiles has resulted in widespread growth, severe traffic congestion, and few public transportation options. Overcrowding means an increase in harmful emissions and reliance on diesel-powered buses for most public transportation adds to the emissions produced. As a result, emerging technologies to reduce emissions and costs, and to attract more travelers to improved transit services should be considered. This research aims to estimate electric-powered buses’ social costs and benefits represented by a reduction in vehicle operating cost, travel time, and air pollution with a concentration on the calculation to using formulas that suit the Egyptian conditions. Benefits calculation models will be applied to a specific bus route, which has two working models of buses on it. One is diesel and the other is an electrically powered bus. The comparison between them was made using data collected from Mwasalat Misr- one of the companies working in the field of passenger transport in Egypt - and also by conducting interviews and asking questions to some makers- decision and users of both busses models. Results indicate that one electric bus has a much higher equivalent annual value (EAV) than one fossil fuel- bus. Plus, the annual maintenance cost of one diesel bus is also higher than the electric bus. Consequently, although an electric bus can annually save 95000 L.E(6035 $) from fuel consumption, its annual vehicle cost (AVC) is 579225 L.E power, as well as the cost factors that allow electric buses to outperform diesel buses and the societal benefits of converting to sustainable clean energy.","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126104774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DEVELOPING PERFORMANCE CRITERIA FOR SELECTING SUSTAINABLE HOUSING CONSTRUCTION SYSTEMS IN EGYPT 在埃及制定选择可持续住房建设系统的绩效标准

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253800

Nermeen Hatata, Fatma A. Agrama, M. El-nemr

{"title":"DEVELOPING PERFORMANCE CRITERIA FOR SELECTING SUSTAINABLE HOUSING CONSTRUCTION SYSTEMS IN EGYPT","authors":"Nermeen Hatata, Fatma A. Agrama, M. El-nemr","doi":"10.21608/auej.2022.253800","DOIUrl":"https://doi.org/10.21608/auej.2022.253800","url":null,"abstract":"Egypt's vision 2030 for the housing construction sector has aimed to achieve sustainable housing buildings that are able to face disasters, alleviate poverty by enhancing affordability, meet people's requirements, and improve their health and safety. Many initiatives have emerged to adopt prefabricated construction systems for Egyptian buildings. However, the decision to adopt such new construction systems for building Egyptian housing still depends on the economic performance. With the increased awareness of the beneficial effects of adopting the sustainability concept, sustainability indicators: social, environmental, and economic dimensions have become drawing the major framework of the Egyptian housing prospective vision. This research aims to identify and develop the comprehensive performance criteria that control the selection of the appropriate construction systems for building Egyptian housing. To achieve the research objective, 28 performance criteria were developed based on an in-depth review of previous studies. A questionnaire survey was conducted using the Likert Five-Scale of importance. The 28 performance criteria were divided into 4 categories (i.e., economic, environmental, social, and technical). The questionnaire targeted Egyptian housing construction practitioners from engineers, architects, designers, contractors...etc. The authors found that the most important criteria have belonged to the economic, social, and technical categories. The environmental criteria ranked lowest among the criteria. Despite that, the relative importance indices for all the environmental criteria were higher than the medium range. That indicates the increasing interest of Egyptian housing construction practitioners in environmental aspects.","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124613132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

THE HOLOGRAM AND ITS IMPORTANCE IN ARCHITECTURE 全息图及其在建筑中的重要性

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253852

Amr Alshereif

{"title":"THE HOLOGRAM AND ITS IMPORTANCE IN ARCHITECTURE","authors":"Amr Alshereif","doi":"10.21608/auej.2022.253852","DOIUrl":"https://doi.org/10.21608/auej.2022.253852","url":null,"abstract":"Light in general and laser beams, in particular, play an essential role in the field of architecture, especially in the presence of hologram technology, as it is one of the virtual reality applications that can re-create a hologram image of objects in three dimensions in space, based on the principle of interference using laser beams. There is no doubt that the tremendous technological developments, especially in software, have brought about a scientific revolution that has affected various architectural fields. With the technical development in virtual reality applications and simulation, it has become possible to create a virtual environment by deluding the recipient's eye with three-dimensional models or surfaces that do not exist and are formed in a vacuum using advanced hologram techniques. So in this research, the technology of three-dimensional holograms using laser beams, known as holograms, has been shed light on, identifying how to create virtual spaces utilizing this technology. Thus, the designer can easily change his design ideas and present them to the recipient according to his functional needs, in addition to creating a state of renewal and continuous creativity in design. In this research, the meaning of the Hologram was identified as one of the virtual reality applications with a brief history of the uses of this technology and the beginning of its emergence, and the idea of its work.","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114900175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

STANDARD DESIGN STANDARDS AND THE EXTENT OF THEIR APPLICATION IN THE MOSQUES OF THE CITIES OF BENHA - AND SADAT - EGYPT 标准设计标准及其在埃及benha - and sadat城市清真寺的应用范围

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253855

Islam Abdelmegid Mohamed Khamis, O. Al-Rawi, H. Abdul Rahman

{"title":"STANDARD DESIGN STANDARDS AND THE EXTENT OF THEIR APPLICATION IN THE MOSQUES OF THE CITIES OF BENHA - AND SADAT - EGYPT","authors":"Islam Abdelmegid Mohamed Khamis, O. Al-Rawi, H. Abdul Rahman","doi":"10.21608/auej.2022.253855","DOIUrl":"https://doi.org/10.21608/auej.2022.253855","url":null,"abstract":": Mosques are God’s homes prepared for his worship, performing gatherings, groups, education and guidance. Mosques differ among themselves in terms of area and size, but they agree in the presence of basic components for each of them, which are represented in the design criteria for mosque architecture: (prayer yard, toilets, places of ablution and purity, prayer hall. The women, the pulpit, the mihrab, ...), which are not applied in a scientific way in terms of the required space, number, and location, and in a manner that enables the mosque to fulfill its function and serve its beneficiaries in a decent manner, where there is no contradiction between the partial functions of its elements, and the research deals with the study of the conditions The current state of mosques, both governmental (affiliated to the Ministry of Awqaf), And eligibility implemented by donating associations or citizens of the cities (Benha and Sadat), and knowing their suitability for the designed criteria, so that they become suitable for use by all members of society without exception, and to provide the best worship environment for worshipers to achieve reverence and increase the wage, God willing. The problem of the study is that the mosque, which is considered the most sacred place, is marginalized from an architectural and design point of view, and there is no integrated vision for the application of architectural standards for it, and most of those standards in the current situation are below the level of approved standards, which requires speedy treatment of the current situation until those standards are established. Mosques,","PeriodicalId":131968,"journal":{"name":"Journal of Al-Azhar University Engineering Sector","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116545490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AMODEL FOR EVALUATING THE EXISTING INDUSTRIAL ZONES PLANNING IN EGYPT 埃及现有工业区规划评价模型

Journal of Al-Azhar University Engineering Sector Pub Date : 2022-08-09 DOI: 10.21608/auej.2022.253857

N. Mohamed, R. Shaban, M. Mahmoud

引用次数: 0