@article { author = {فتحي عمر, مايسة and أمين, أيمن}, title = {استراتيجية التدريس والتعلم المطور المستدام بکليات وأقسام العمارةالجزء الثإني}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1437-1451}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19096}, abstract = {قام الباحث باعداد دراسة عن استراتيجية التدريس والتعلم المطورالمستدام بکليات العمارة وتضمنت تلک الدراسة منهجية لاعدادها التي تعرضت بدورها لخطوات اعداد استراتيجية تصلح للتطبيق بکليات وأقسام العمارة. وقام الباحث بشرح واستعراض تفاصيل الخطوات الخمسة الأولي بالورقة البحثية استراتيجية التدريس والتعلم المطورالمستدام بکليات العمارة فى الجزء الأول من البحث . الخطوة الأولـــي تعريف مفهوم استراتيجية التدريس والتعلم المطورالمستدام. الخطوة الثإنيـــة  تحديد خصائص استراتيجية التدريس والتعلم المطورالمستدام. الخطوة الثالثـــة صياغة أهداف وغايات استراتيجية  التدريس والتعلم المطورالمستدام. الخطوة الرابعــة تحديد مصادر التعلم ومجموعة الأنشطة التي تساعد الطلاب علي اکتساب خبرات محددة مع تحديد مخرجات التعليم المرغوب فيها تحديد الوسائل التعليمية التي يتم استخدامها و تصميمها لتحقيق الأهداف التعليمية الخطوة الخامسة تحديد مواصفات خريج کليات العمارة   وتقوم تلک الورقة البحثية بعرض الخطوات الخطوات السادسة والسابعة والثامنة والتي تتضمن الاستراتيجيات ومؤشرات قياسها.       ويوضح الجدول التالي الخطوات المنهجية لاعداد استراتيجية التدريس والتعلم  لکليات العمارة  والتي ستقوم   هذه الورقة البحثية باستعراضها : الخطوة السادسة أنواع استراتيجيات التدريس والتعلم اللازمة لتحقيق التعليم والتعلم المطورالمستدام الخطوة السابعــة مؤشرات قياس تحقيق استراتيجية التعليم والتعلم 1-     الخطوة السادسة :     أنواع استراتيجيات التدريس والتعلم اللازمة لتحقيق تدريس وتعلم مطور مستدام استراتيجيات التدريس تتضمن استراتيجيات تعلم  وحدد البحث لکليات العمارة آخذا  في الأعتبار مهارات التخطيط  للتدريس ودور أعضاء هيئة التدريس القائمين بالتدريس بالآتي: استخدام استراتيجيات التعلم المعتمدة والموثقة  Employ learning strategies طبقا لمصفوفة استراتيجيات التدريس والتعلم بالمقررات الدراسية (نموذج مصفوفة استراتيجيات التدريس و التعلم بالمقررات الدراسية) تحقيق نواتج التعلم المستهدفة للمقررات الدراسية Intended Learning Outcomes ILOs طبقا لنموذج توصيف مقرر دراسي (نموذج توصيف مقرر دراسي) استدعاء المعرفة السابقة Recall Relevant Prior Knowledge الالتزام بمحتوى المقرر الدراسى Course Content طبقا لنموذج توصيف مقرر دراسي تنظيم أنشطة التدريس والتعلم التي تفيد المحتوي العلمي Teaching and Learning Activities طبقا لنموذج توصيف مقرر دراسي. التطبيق العملى وتوزيع الوقت بشکل متوازن  Practice  طبقا لمصفوفة  المعارف والمهارات المستهدفة من المقرر معالجة المعلومات والأمثلة Process information and examples التقويم السليم والتغذية الراجعة التقويمية Feedback التلخيص والمراجعة Summarize and review ترتکز عملية التدريس والتعلم في کليات وأقسام العمارة على مجموعة من الإستراتيجيات الحديثة بحيث تکون قادرة علي تحقيق الأهداف التعليمية وتتناسب مع امکانات وقدرات وقابليات المتعلم وتستثير دافعية المتعلم للتعلم و تراعي امکإنية استخدامها في أکثر من موقف تعليمي وإن تتيح فرصة امکإنية توظيف التقنيات التعليمية الحديثة0}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19096.html}, eprint = {https://jaes.journals.ekb.eg/article_19096_8253bc0d2a4c4ed40d5ffddbd9adc83a.pdf} } @article { author = {حسين سامح, هشام and الهمشرى, محمد and محمد فاضل, علا}, title = {تأثير المواد النانويه المضافه لتحسين الخواص المختلفه لمواد البناء وانعکاس ذلک على اعمال الصيانه للمبانى}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1469-1475}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19098}, abstract = {The traditional building materials used in the various elements of the building are limited in their characteristics and characteristics, in addition to the presence of some defects which made it necessary to discover new materials that avoid the apparent defects in the building. The Nan particles, which have added to them a great effect in minimizing the defects found in traditional building materials Where the addition of the mat erial nana to obtain new features, were not available for several purposes vary from building to another, which is reflected in turn on the maintenance work of the building, and these materials 1- Titanium dioxide (TiO2) as self-cleaning material 2. Zirconium Oxide Nan particles (ZrOx) and anti-wall coating 3 - the use of Nan particles of silica as in the anti-fogging and anti-icing coatings}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19098.html}, eprint = {https://jaes.journals.ekb.eg/article_19098_72135269dd487217cff757184b7e87b6.pdf} } @article { author = {حسين سامح, هشام and الهمشرى, محمد and محمد فاضل, علا}, title = {دور تکنولوجيا النانو فى تطور مادة الخرسانه المستخدمه فى البناء للحد من تلفيات المبنى}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1477-1482}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19099}, abstract = {There are several forms for the development of concrete used in construction, which helps to develop these materials in the installation of concrete, these materials make the concrete several forms will be studied some of them to identify the impact of nanoparticles on the concrete, which works to improve the properties of concrete, Resistance to conventional concrete to weakness, or more of the discovery of stresses and distortions in addition to the discovery of underground stresses, which works to preserve the concrete by taking all precautions to keep them from damage, used in the case of rain places, or located in Mai The moisture is one of the most dangerous factors affecting the efficiency of the concrete, helping to preserve the concrete away from the negative impact of moisture on it, or what is characterized by light weight and simplicity of operation, which works to reduce the loads on the building, thermal and acoustic insulation, which reduces the use of insulation materials Conventional, or has the power of insulation beyond traditional materials and reduce the need for them, and the non-combustion reduces fire damage on the concrete when it erupts}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19099.html}, eprint = {https://jaes.journals.ekb.eg/article_19099_63380d1fcfe6ee5a990e5b175fab2085.pdf} } @article { author = {جابر, أحمد and صلاح الدين المغربى, ياسر}, title = {النانو تکنولوجً ودورها فى تحقٌق الاستدامة من خلال تطوٌر مواد ال تشطٌب}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1501-1508}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19100}, abstract = {This research deals with a new science that covers all aspects of our life, e specially the engineering aspects, including the materials and methods of construction and finishing, which is nanotechnology. The rapid development of scientific researches led to the discovery of many sciences and also the appearance of nanometers due to the discovery of the microscopic tunnel microscope , which achieved direct interaction with atoms that appears Nanotechnology with its properties, methods of preparation and its various forms, where nano technology products has proved to be applicable and has a great economic return in all fields which can not be limited because of their rapid growth and development. As its products depending on the best using of such technology such as the glass which is self - cleaning glass , heat - resistant, anti bac teria, anti fog and many other building materials. The application of nanotechnology in the construction field is one of the most important application of green architecture which achive sustainability through improving the properties of materials to achi eve conservation of resources, recycling, non - destruction wich also achive environmental goals.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19100.html}, eprint = {https://jaes.journals.ekb.eg/article_19100_487c53632e4313240ac0ac56030ee8e6.pdf} } @article { author = {خورشيد, خالد and عبدالحميد السکري, رشا}, title = {نمذجة معلومات البناء أثناء دورة حياة المبنى مابين النظرية والتطبيق" دراسة حالة مشروع قطر مول}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1529-1542}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19101}, abstract = {The information technology has a great impact on all fields, especially the architectural field, which explains the importance of information through the good collection of information and the accuracy of their details increase their importance and thus increase the ability to employ them. For example, modeling the structural information of the building, we get the technology that enables the creation and management of the building data through the work of a three-dimensional model The structure of the building is characterized by building specifications and data. The aim of the research is to clarify that modeling is a technique that can be employed during the building life cycle starting with the development of design proposals, (BIM-BAM-BOOM). The research first presents the definition of building information modeling in general, and then clarifies the stages of building information modeling through the development of modeling ideas and design modeling, then implementation modeling and prototyping models, The application of information modeling is generally studied and then studied how to use this technique to model the phases of the project by dividing the life cycle of the building into three main stages: the design, represented by the BIM phase, the building information model (BIM), and the BAM (Building Assembly Model - BAM) ) Then he passed Operation Mode and Building Management The Building Optimized Operations Model (BOOM)    Although many users believe that the benefits of these systems are limited to employ them in the design phase often, they are used by various specialists in the field of construction and engineering construction. The research deals with the definition of each stage and timing and programs used and barriers to the application with the presentation of the benefit of the project The modeling of this stage was followed by the presentation of a case study for the "Mall Qatar" project where modeling was used in the stages of its construction. The design, implementation, operation and demonstration of the positive use of building information modeling on the building and all project managers to save effort, Project to save the search results.}, keywords = {نمذجة معلومات البناء – (BIM-BAM-BOOM) – معوقات إنشاء المشاريع}, url = {https://jaes.journals.ekb.eg/article_19101.html}, eprint = {https://jaes.journals.ekb.eg/article_19101_de58754c00e6aa968c883a905dfa0107.pdf} } @article { author = {مصطفى, أحمد and القحطانى, ماجد}, title = {تطوير منظومة المشتريات الحکومية لمشاريع التشييد الحکومية بالمملکة العربية السعودية}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1543-1557}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19118}, abstract = {يتمّ تأمين الاحتياجات الحکومية بمختلف أشکالها، عن طريق سلسلة من الإجراءات القانونية، والمالية، والفنية، يُطلق عليها: (منظومة المشتريات الحکومية).. وتتألف هذه المنظومة في الأساس من نظام المشتريات الحکومية و اللائحة التنفيذية له، وعقد الأشغال العامة. وتغطي هذه الإجراءات مراحل العمل في جميع المشاريع تقريباً، وتهدف إلى تأمين احتياجات المشاريع بالجودة المطلوبة، والسعر المناسب و إلى حماية موارد الدولة المالية. ومن واقع دراسة سابقة للباحثين (القحطاني ومصطفى، 2017) اتضح أن هناک نقاط ضعف في منظومة المشتريات الحکومية لها تأثير کبير على استمرار ظاهرة تعثر المشاريع الحکومية التي تعاني منها العديد من مشاريع التشييد والبناء في القطاع الحکومي وتمثل أحد مسببات استنزاف موارد الدولة وتعثر، وأن الجهود الرامية إلى حل الأسباب الأخرى المسببة لتعثر المشاريع لا تکفي للقضاء على هذه الظاهرة دون معالجة هذه المنظومة وهو ما يمثل الإشکالية الرئيسة التي تسعى هذه الدراسة لحلها. يمثل هذا البحث أحد المحاولات الهادفة إلى تحليل وتقييم المنظومة الحالية للمشتريات الحکومية في مشاريع التشييد بالمملکة خلال دورة حياتها مع الترکيز على مرحلة الطرح الترسية واقتراح أساليب لتطويرها ضمن الجهود الرامية إلى تلافي أسباب تعثر المشاريع وتحسين جودة مخرجاتها.}, keywords = {التعثر,نظام تأمين المشتريات الحکومية,اللائحة التنفيذية لنظام تأمين المشتريات الحکومية,عقد الأشغال العامة}, url = {https://jaes.journals.ekb.eg/article_19118.html}, eprint = {https://jaes.journals.ekb.eg/article_19118_ff4e6cd50d92d6e3cade3dc4420703e5.pdf} } @article { author = {عبد الفتاح عمار, زکريا and عبد الله, محمد and حسين, هشام}, title = {حو عمارة حرکية بدون عناصر ميکانيکية تتداخل مع البيئة الخارجية لتستجيب للمتطالبات البيئة الداخلية}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1591-1595}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19122}, abstract = {Kinetic architecture  used technological advances  in the centre of architectural field to establish itself in the built environment.  Although, there are large number of  researchers and realized projects and various issues have been presented  related to the incorporating of kinetic architecture in conventional building design, there are many problems have to be solved over the past years. Responsive architecture and computational design have collaborated to form a strategy to design   Kinetic architecture  through material technology aiming in low energy consumption designs that fulfill their purpose more efficiently.  This technology employs specific group of  smart materials present kinetic properties  that  resulted from external effects. These materials are different from the other ones as they can move without any motors or mechanical parts. They also adapt with the environmental conditions to organize the indoor climate of the building all the day. These materials can be used in Kinetic architecture  to reduce the cost and it can also be used in the developing countries. A number of  projects  will be analyzed that respond to environmental data gathered from their immediate environment or human interaction, and form systems that aim to produce a sustainable architecture.}, keywords = {المواد الذکية,التکيف,الاستجابة,الحرکية,الحرکة الذاتية}, url = {https://jaes.journals.ekb.eg/article_19122.html}, eprint = {https://jaes.journals.ekb.eg/article_19122_2c0dc17ed8b722fab4f2b600c70e09dc.pdf} } @article { author = {Ibrahim, Islam and El Zamly, Hassan}, title = {COMPARING SUSTAINABILITY OF NEW EGYPTIAN SETTLEMENTS VERSUS TRADITIONAL EGYPTIAN CITIES: A COMPARISON OF MASR EL-GDIDA AND NEW CAIRO CITY.}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1597-1613}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19123}, abstract = {The debate of changing development patterns from the traditional in old Egyptian cities to modern neighborhood in new Egyptian settlements still constitutes a controversial matter for different interest groups. Residents, planners, and authority thought that this change could be a solution for old town's problems, where residents can find calm, safety and open greenery spaces high parking area, and low traffic cognition. On the other hand, different scholars have increasingly emphasized that traditional compact, mixed use, high-density urban forms is important for reaching sustainability goals in term of environmental, economic and social advantages. Based on comparison of traditional and new settlements in Egypt; this research examine the sustainability of New Egyptian Settlements. This research argues that moving from traditional to modern neighborhood rather than be the solution for development of Traditional Egyptian Cities, it becomes part of problem of development of modern Egyptian settlement. The purpose of this research is to examine the contribution of moving from traditional to modern urban form with reference to GCR new towns.}, keywords = {Traditional cities versus New Settlements,GCR,Development Evaluation Indicators,sustainable urban form}, url = {https://jaes.journals.ekb.eg/article_19123.html}, eprint = {https://jaes.journals.ekb.eg/article_19123_c737ff605cccd6e4a387bcb35fc8d1d3.pdf} } @article { author = {فتحي عمر, مايسة and أمين, أيمن}, title = {استراتيجية التدريس والتعلم المطورالمستدام بکليات وأقسام العمارة}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1427-1435}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19125}, abstract = {This reseach describes modern techniques and understandings of teaching methodolgy in Architecture Faculties & related departments. Also, to recognize the teaching strategy and modern sustanable science that could be applied in this regard, and to conclude groups of startegies based on the targets output and according to the regulatory and approved academic norms and standards; NARS: “National Academic References Standards” which shall consider the miminum knowledge and skills that the graduates should aquire in order to assure well performance during their professional career and according to market needs. The main purpose of this research is to develop specific teaching and learning methedology capable for easy applications in Architecture Faculties & related departments. The research focus on Architecture graduates specifiecations according to NARS, also this research has presented a new teaching methods to improve the education process that stimulate the students self education and motivation to meet the target Architecture education programs outputs. In this regard, the research has divided these strategies into several types, focusing on the most important strategies that serves the edcuation proecesses in the Architecture departements: 1)      Develop Strategies based on arrangement of the contents and development of thoughts: -          Developed Lecture Strategy – Thoughts strategies. 2)      Develop Strategies based on Sustainable teaching theories and e-communications: -          Sustainable Development Strategy - Cooperative Learning Strategy - Creative Strategy - Project Strategy - e-learning and presentation Strategy. 3)      Strategies based on developed practical skills: -          Strategies of Architecture Models. 4)      Develop Strategies to support active learning. (Based on verbal questions and interaction pronunciation). -          Discussions Strategy. And this research is dividing in two parts first focus on difinitions , learnning and teaching resources  and Architecture graduates specifiecations .Second focus on on the most important strategies that serves the edcuation proecesses in the Architecture departements}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19125.html}, eprint = {https://jaes.journals.ekb.eg/article_19125_4c0436e4d2ee6192156d17aec2db2e71.pdf} } @article { author = {البرملجى, محمد and عز, محمد and بدوى, ابراهيم}, title = {تحسين کفاءة استهلاک المبنى للطاقة من خلال استخدام الطاقة الشمسية}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1453-1460}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19126}, abstract = {Green architecture, green buildings and eco-friendly cities are one of the modern trends in modern architectural thought that deals with the relationship between buildings and the environment. The importance of this research appears in dealing with the problems of urban development as the modern buildings lacking protection from solar energy and radiation. One of the most important structural problems is the exposure of buildings to high temperatures  which lead to consumption of energy either to reduce the internal temperature of the building or to heat the building as a result of loss of heat. The glass facades are used extensively in the buildings to increase the natural lighting in the interior spaces. As a result, the penetration of the sun into the building greatly results in increased heat transfer through these glass areas. Integration of buildings can be used through photovoltaic matrices in different images. This integration can be done by inserting matrices within the architectural configuration of the outer surface of the building in a clear symmetrical architectural pattern or by integrating matrices as part of the building so that it is not visible for  the viewer. The negative solar design patterns that reduce energy consumption, as well as positive solar systems, have been reviewed and how these systems can be used to improve energy efficiency.}, keywords = {التنمية المستدامة ، الطاقة الشمسية، المبانى الخضراء,استهلاک الطاقة بالمنبى,تظليل,الخلايا الشمسية}, url = {https://jaes.journals.ekb.eg/article_19126.html}, eprint = {https://jaes.journals.ekb.eg/article_19126_40f1c2af0eaefa216d1744b464f206d1.pdf} } @article { author = {البرملجى, محمد and عز, محمد and بدوى, ابراهيم}, title = {استخدام النظم الفوتوفولتية فى تحقيق الاستدامة العمرانية الشاملة}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1461-1467}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19127}, abstract = {The modern world faces many challenges that keep up with accelerated urban development.The consumption of traditional energy sources is constantly increasing in order to achieve an environment suitable for human comfort. Consequently, the damage caused by the excessive use of these traditional energies in urban development and its negative impact on the natural environment is increasing especially in urban areas.Current requirements are linked to finding an appropriate alternative sources  for  energy supply at the top of the country's environmental, urban, economic and political trends to achieve urban sustainability and energy demand.    There have been several advanced approaches to generating clean energy that is not polluted to  the environment, including solar energy, and with the weak methods of supply of buildings and cities power, especially buildings with electric power in Egypt , it is necessary to search for modern technologies to supply energy.     The most prominent of these techniques are photovoltaic systems , which have varied and developed in large scale form, have a clear reflection on the sustainability of the built and non-built environment.      The aim of this paper is to introduce the uses of photovoltaic systems and their role in achieving urban sustainability and to identify the extent of their application in Egyptian buildings and cities, as well as the presentation of architectural requirements for the success of this modern technology.}, keywords = {تقنيات النظم الفوتوفولتية ، الطاقة الشمسية، قصور امداد الطاقة,الاستدامة العمرانية الشاملة}, url = {https://jaes.journals.ekb.eg/article_19127.html}, eprint = {https://jaes.journals.ekb.eg/article_19127_24cad8cf8beda27c717e526a62e09aff.pdf} } @article { author = {عبد الحليم, فادية}, title = {مفاهيم الاستدامة کرکيزة لدعم الحياة بالحيز الحضري}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1483-1490}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19128}, abstract = {The purpose behind the concept of sustainability is to work to find a balance in all  benefits that serve all economic, social and environmental levels within the same society, and with the emergence of many calls at the beginning of the sixties of the last century to the environment and nature protection and orientation towards activating the mechanisms to ensure compatibility and complementarity among the urban environment in the larger ecosystem, prompted many bodies and institutions towards working in the field of environmental architecture through sustainability, making the world aware of the close link between economic development and the environment where its impact directly is on the human activity and striving towards a qualified and better life without the depletion of natural resources or harm the environment.}, keywords = {الاستدامة – الحيز الحضري – النشاط الإنساني – أساليب دعم الحياة الحضرية}, url = {https://jaes.journals.ekb.eg/article_19128.html}, eprint = {https://jaes.journals.ekb.eg/article_19128_645a1d0fb3caea5dcea2ee42d65b3f80.pdf} } @article { author = {عامر, إسماعيل and صلاح الدين المغربى, ياسر}, title = {أثر المواد المعالجة بتقنية النانو علي اقتصاديات البناء}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1491-1499}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19129}, abstract = {The research deals with the integrated system of finishing facades, especially for housing through the stages of design and implementation and their relationship with economics. The budget for finishing the facade can be controlled by selecting and identifying successful and alternative materials such as nanotechnologies materials, Where this materials with new technologies can be accessed for choosing a lower cost materials over the long run, with lower implementation time, taking in consideration the final appearance (aesthetics) and the long life  materials with easy maintenance and replacement. which achieve the determinants and specifications required in the selected materials as well as customer satisfaction, that as shown in Figure (1).}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19129.html}, eprint = {https://jaes.journals.ekb.eg/article_19129_fb2ed3c0ce90fd0ee99b45ec751d0ddb.pdf} } @article { author = {جمعه, احمد and أبريک, هاجر}, title = {استدامة المسکن الليبي الساحلي}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1559-1578}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19130}, abstract = {Beside human development through the ages & his interests in his home the place where he lives in and his other life matters, gradually he became developing himself from stage to the other to achieve himself and provides his needs in his home. So several directions started to appear in that field to compatible with the environment. New thought appeared under several names in that fields such as what is known as sustainable urban development that serves the architecture in general and the man specially inside a healthy urban environment is far from pollution, to benefit from the natural environment, building materials and the role of compatible technology in supporting concepts of sustainable architecture & achieving its dimensions. In order to achieve access to basic requirements for housing in Libya, particularly in the north of the country. As the study relate to the dwelling that located on the coast overlooking the north of the country. Which is considered as the most residential density. Where large and major cities are concentrated. Where construction wheel accelerated in these cities. Several reasons were neglected, including not taking advantage of the climate surrounding the building. Therefore, it was necessary to find a solution to the problem of environmental balance of dwelling on the method of knowing modern technology with the principles and mechanisms and applications to deal better with the building and with the surrounding environment with minimal side damage to the environment. To can search through that for a mechanism to deal with the environmental problems of the Libyan dwelling on the coast and to provide a better indoor environment for residents while retaining the design principles that preserve the cultural and religious traditions.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19130.html}, eprint = {https://jaes.journals.ekb.eg/article_19130_94ef3d2ebe135dcd0f814e07aede96d7.pdf} } @article { author = {عبد الفتاح عمار, زکريا and عبدالله, محمد and حسين, هشام}, title = {طرح منهجى تجريبى لأستخدام الواجهات "الذکية" ذاتية الحرکة فى رفع کفاءة الفراغ الداخلى والإدراک البصرى}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1579-1590}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19131}, abstract = {The design process describes the building which fulfill a specific number of design requirements, as it achieves a number of design aims as the building envelope is the element which separates the outdoor environment and the indoor one. The building envelope has a great effect on the natural light, shading, and temperature according to the aims of which the kinetic envelope is designed for. The traditional kinetic architecture face a lot of problems such as the high cost of the project implementation, and the high – tech which can’t be implemented in the developing countries. Most of these projects aim at creating architectural icon, so we turned to self – movement architecture which is affected by external natural effects and it affects the indoor climate and temperature without using mechanical elements which reduces the total cost of the building. In this regard, a design can be turned from a standard that can be measured in all departments to the inclusion of information related to digital assessment and simulations related to the development of forms and architectural solutions. To reach this aim, a number of parameters and models are proposed to describe the possible variations. Also, the algorithms can be presented as a mean of elaborating the relation between the form and performance especially in the early stage of design. In this regard, the proposed design process doesn’t aim at finding the best solutions; instead, it aims at exploring the design which can be implemented on a larger scale. Thus, the designer can change the design process as well as extracting the data out from the reached solutions.  }, keywords = {المواد الذکية,التکيف,الاستجابة,الحرکية}, url = {https://jaes.journals.ekb.eg/article_19131.html}, eprint = {https://jaes.journals.ekb.eg/article_19131_dec2a2289aabe2ecd4c6f41e9e931c0b.pdf} } @article { author = {احمد محمد, عبدالناصر}, title = {أهدار المنشآت الأثرية والمباني ذات القيمة المعمارية فى مصر}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1509-1517}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19132}, abstract = {Architectural works of value in Egypt have been violated for a long time now. The intensity of the intervention, whether by conservation or demolition, differed according to successive periods of government, but the continued elimination of these actions has increased in the past 50 years. The position of the monumental or aesthetic building is determined by the views of the owner (the archeological authority and the urban coordination). Each has a different view of the way of dealing with the building because of the absence of legal legislation that regulates the handling of this type of work. The value and even conflicting provisions of this legislation, which contributes greatly to exploit the gaps in the law to demolish these buildings. Many of those interested in this matter contributed their opinions on the development of a general perception of these buildings through the existing areas and raise the awareness of the people to deal with them as a cultural stock that benefits the owners and the state at the same time..}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19132.html}, eprint = {https://jaes.journals.ekb.eg/article_19132_40eda67f617954a32657edd452e3f0d1.pdf} } @article { author = {إبراهيم سالم, وحيد}, title = {علاقة تغير تکوين الفراغات الحضرية العامة بتغير الأنماط البنائية من حولها في مدينة القاهرة}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1519-1528}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19133}, abstract = {The open spaces of the city are exposed to many changes. The architectural configuration of these spaces is a direct result of the changes in the urban, social, technological and economic conditions. These conditions and their mutual effects are reflected on the nature of the composition, characteristics and shape of the outer spaces. The change in building patterns is one of the most important changes in the architectural conditions that affect the architectural configuration of the external spaces. The change in building patterns changes the urban configuration of the urban spaces. Changes to building patterns may be planned by official bodies and agencies that develop programs and plans that aim at developing thought in the characteristics of the urban fabric; they may be random and unthought by individuals or some investors for the purpose of profiting or may be due to external circumstances Such as wars, earthquakes and volcanoes. In the case of randomized and unplanned changes, the spatial and structural differences in the patterns of different building patterns lead to further deterioration in the visual image and the plastic properties of the surrounding outer spaces. If the random shifts in the architectural patterns of the buildings continue, they gradually lead to the loss of the architectural identity of the spaces External city. The research aims to identify the most important factors that lead to the change of building patterns, with an analysis of how this affects the changes of the architectural configuration and the characteristics of the architectural identity of the external spaces of the city through the study and analysis of some international and local examples in Cairo. The research concludes with a set of recommendations that set the basic features for controlling architectural changes in building patterns in order to improve and develop the architectural design of the open spaces of the city.}, keywords = {تغير انماط المباني,التشکيل المعماري للفراغات الخارجية,الطابع المعماري}, url = {https://jaes.journals.ekb.eg/article_19133.html}, eprint = {https://jaes.journals.ekb.eg/article_19133_7ff88bcb6bf6032ea9485a924eaa7958.pdf} } @article { author = {عبده محمود, أحمد and حمادة, رضا}, title = {آليات تطوير المناطق العشوائية طبقاً لمبادئ التنمية المستدامة}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1615-1626}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19134}, abstract = {The problem of informal settlements is one of the problems that many developing countries suffer from, some of the developed countries also suffer from it, although the dimensions of the problem are different, and the informal settlements are a natural result to meet the human needs and to express their basic requirements when the state is unable to solve them. But it can not be separated from the economic and social conditions of a society. It is a direct expression of these conditions. Therefore, its treatment as a problem must be through the establishment of specific mechanisms to discuss the implementation and funding of such projects.  In recent decades, a more recent concept of "sustainability" has emerged. Sustainability as a concept has recently been called for and a major prelude to it as a kind of salvation from the environmental problems that have resulted in development processes in various fields, including urban development of all kinds , Which includes the development of informal settlements, where sustainability is one of the most important foundations and strategies for the development of informal settlements. The research aims to develop a set of mechanisms for the development of informal settlements according to the conditions of the urban, social and economic environment, As a key and complementary part of the mechanisms, to ensure that development projects are successful in achieving the desired urban sustainability when developing informal settlements.}, keywords = {المناطق العشوائية,آليات التطوير,الاستدامة,مبادئ التنمية المستدامة}, url = {https://jaes.journals.ekb.eg/article_19134.html}, eprint = {https://jaes.journals.ekb.eg/article_19134_1df27b5d80a9aebbde27870113b3f1e4.pdf} } @article { author = {Megahed, F and Sharaky, I and Badawy, A and Seleem, M}, title = {THE ROLE OF CEMENT CONTENT ON CONTROLLING THE COMPRESSIVE STRENGTH AND WATER ABSORPTION OF NANO SILICA CONCRETE}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1417-1426}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19135}, abstract = {This paper presents an experimental investigation on the effect of Nano Silica (NS) on the compressive strength of concrete made with different cement contents. Two percentages of NS, 1.5% and 3%, as partial replacement of cement were investigated at cement contents of 300, 400, 500 and 600 kg/m3. The effect of NS and cement contents on the compressive strength of concrete at different testing ages of 7, 28 and 56 days was evaluated. The effect of NS and cement contents on the water absorption percentage (WA%) was also investigated. The effect of cement content on the compressive strength ratios at 7 and 56 days to that at 28 days was found and correlated. The effects of cement content on the enhancement ratios of compressive strength and WA% were also evaluated and correlated. NS addition enhanced the compressive strength and reduced the WA%. The maximum enhancement in the compressive strength was recorded at 1.5 % NS. As this ratio increased to 3%, the compressive strength decreased but to a values not less than that of the concrete mix without NS.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19135.html}, eprint = {https://jaes.journals.ekb.eg/article_19135_9703f71cba883820a2c1ae5616ba0b9b.pdf} } @article { author = {Elgohary, Mohamed and Attia, Walia}, title = {3D-MODELING OF LONG SPAN BRIDGES AND FLUID-STRUCTURE INTERACTION DOMAINS}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1267-1284}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19136}, abstract = {Analysis of long span cable bridge such as: Cable stead or Suspension bridges under the effect of fluid structure interaction (FSI) became the main parameter affect design and safety of long spans bridges. In this research we will discussed, the 3D-CFD Finite element modeling of the wind flows around bridges. The 2D-modeling of the bridge deck and the fluid domain around it to get the critical wind speed without flutter occurs, aren’t more accurse in the bridge modeling. There are many out of plane parameters that affect the critical wind speed and flutter. But also the 3D-Modeling of the bridge and the fluid domain using the finite element theory in all of computer programs are very difficult because it need a huge disk space and long time to run the analysis. Therefore the research studies the reshape of fluid interaction 3D-domain, and How to make it optimum in analysis, time, and efficient results. The optimum 3D-domain takes every in plane and out of plane parameters the affect the long span bridge modeling. That gets accurate nearest simulation to bridge behavior in fluid structure interaction closed to the wind tunnel test.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19136.html}, eprint = {https://jaes.journals.ekb.eg/article_19136_9fb0206c4b7ffcef61646061fbb8230f.pdf} } @article { author = {Elgohary, Mohamed and Attia, Walid}, title = {BRIDGE PYLONS-MODELING AND DESIGN UNDER CFD ANALYSIS}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1285-1294}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19137}, abstract = {Analysis of long span cable bridge such as: Cable stead or Suspension bridges under the effect of fluid structure interaction (FSI) became the main parameter affect design and safety of long spans bridges. In this research we will discussed, the 3D-CFD Finite element modeling of the wind flows around bridges. The 2D-modeling of the bridge deck and the fluid domain around it to get the critical wind speed without flutter occurs, aren’t more accurse in the bridge modeling. There are many out of plane parameters that affect the critical wind speed and flutter. But also the 3D-Modeling of the bridge and the fluid domain using the finite element theory in all of computer programs are very difficult because it need a huge disk space and long time to run the analysis. Therefore the research studies the world's longest cable-stayed bridge, the Tatara Bridge, was carried out. The design and detailing of the towers, cable alignment, pier and girder shape, and color were studied using scale-models and computer-aided graphics. Because of the scale of this bridge, aesthetic design had to be carried out within severe structural constraints, including aerodynamic stability and economies.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19137.html}, eprint = {https://jaes.journals.ekb.eg/article_19137_ed9f57d2d7d5e77b76162d6da39e453b.pdf} } @article { author = {Ahmed, S and Khalil, H and Atia, A and Fawzy, A}, title = {MECHANICAL BEHAVIOR OF HIGH STRENGTH CONCRETE INCORPORATING SILICA FUME AND AMORPHOUS NANO-SILICA AT DIFFERENT CEMENT CONTENTS}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1295-1303}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19138}, abstract = {In this paper, an experimental investigation on the use of silica fume and amorphous Nano silica on compressive and tensile strength of HSC was done at different cement contents. The percent of Silica fume and Nano silica were 10% and 1% respectively. Three cement contents, namely, 500 kg/m3, 600 kg/m3 and 700 kg/m3were used. All tests were performed at 28 and 56 days. Silica fume and amorphous Nano-silica are used as partial replacement of cement. Further investigation was carried out by combined replacement of silica fume (10%) and Nano silica (1%) of cement in the same mix. Compressive and split tensile strength of these mixes were measured and compared with the control concrete specimens. The experimental test results showed that concrete prepared with (1%) nano silica showed a good comparable strength (either compressive or splitting tensile) than the other two concrete mixes of 10%silica fume or combined silica+nano concrete. The test results showed also that there is a decrease in ratio of tensile to compressive strength as cement content increased for both 10% silica fume concrete and 1% nano silica concrete due to the  more increase in compressive strength gain.}, keywords = {High strength concrete,Nano silica,Silica Fume,replacement,Compressive strength,tensile strength}, url = {https://jaes.journals.ekb.eg/article_19138.html}, eprint = {https://jaes.journals.ekb.eg/article_19138_a326c013d247ecc9cb70c9e7add3dd06.pdf} } @article { author = {Salem, Ahmed}, title = {DEVELOPING AN ACTIVE LEARNING EXPERIENCE FOR ACTIVE LEARNING COURSES.}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1311-1320}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19139}, abstract = {The need to blueprint a certain composition of Active Learning activities arises upon designing the learning experiences for a certain learning objective. Also it rises when designing the proper learning environment that leads the students in the right direction to achieve this objective. The precise succession of these activities, being before, inside, or after the class will lead the student to create their knowledge according to the constructivism theory for attaining their learning objective. In the literature, there are so resourceful sorts of activities that teacher can initiate to the students in this regards. For instance, Salem, A. Z. [1] has proposed a helping mechanism to design learning experiences for Active Learning courses. This mechanism intended at addressing the specific need to convert the learning objectives seeking certain Bloom’s taxonomy domains of learning into a class’s learning experiences. It offers a road map that offers many alternatives for any particular design. This mechanism also counted for the time component of the learning experiences. Examples were provided to demonstrate the use of the helping mechanism, varying from simple to complex designs.  Surely, it is hard to think of the design of learning experience as a mechanized process because it is a composition of both art and science, but this mechanism is offering a good starting point. In this paper, we propose an answer for the questions “what type, duration, and collection of activities that may lead to achieve the evaluation level learning objective specifically?” and the question “How to assess both the success of this learning experience design and the student achievement?” This paper introduces an implementation of this helping mechanism to design a learning experience that targets the “evaluation” level of learning and takes also the affective domain three levels, namely “receiving, responding and valuing” into concern. The designed learning experience was applied in a course at college level, introducing the engineering design process to students. Evaluation of this learning experience showed that, it fulfilled its objectives.}, keywords = {active learning,Design College Course,Learning Experience,Class Environment}, url = {https://jaes.journals.ekb.eg/article_19139.html}, eprint = {https://jaes.journals.ekb.eg/article_19139_473e2de073fec961a9fc3b83b361b2f8.pdf} } @article { author = {Salem, A}, title = {EVALUATING FRONTAL AUTOMOTIVE BUMPER SYSTEM TO IMPROVE SAFETY}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1305-1310}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19140}, abstract = {Automotive Frontal bumper systems address two goals. First, is to lessen the inward intrusion during crash scenario and the second is to guarantee pedestrian safety. A good bumper design would try to fulfill these two goals while maintaining its weight as low as feasible to improve energy consumption. In this paper, we try to add to these two functions, a new condition, that is the ability to maintain the minimum possible lasting plastic damage during low speed crashes. This would develop both the crashworthiness of the bumper and the pedestrian safety. We address this condition by assuring that the bumper deformations stay close to the elastic zone of the material. Due to the limited range of the material elastic deformations of the bumper, even at low speeds, we try to complement it with a visco-elastic process. This is achieved by alternating the brackets connecting the bumper to the car structure elements with a spring-dashpot system that provides the desired visco-elastic response, allowing the bumper beam to deform nearly elastically. Finite element analysis is used in the study of the spring-dashpot system parameters to reach the optimum configuration that ensure minimization of plastic deformations in the bumper structure at low speeds of 5 miles/hour crash. The consequence of varying the thickness of the bumper beam is also investigated in this regard. A basic parameterized finite element model of the Ford Crown Victoria bumper form is used in several crash simulations carried out with the explicit dynamics system LS-DYNA3D to test the validity of this bumper system.}, keywords = {Bumper beam,impact,crashworthiness simulation,low speed crash}, url = {https://jaes.journals.ekb.eg/article_19140.html}, eprint = {https://jaes.journals.ekb.eg/article_19140_d7c58772c2c9a638bb9fce8948911e32.pdf} } @article { author = {Osman, Saied and Mohamed, Rania and Ebrahim, Mohamed and Bendary, Fahmy}, title = {OPTIMAL TUNING OF FUZZY LOGIC CONTROLLER PARAMETERS FOR INCREMENTAL CONDUCTANCE MPPT CONTROLLER BASED ON GREY WOLF OPTIMIZER ALGORITHM}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1417-1426}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19141}, abstract = {Nowadays Maximum Power Point Tracking (MPPT) controller is considered the central part of any photovoltaic system to achieve the maximum power at all time under the change in weather conditions. MPPT techniques like, Perturb and Observe (P&O), Incremental Conductance (IC) and Fractional Open-Circuit Voltage (FOCV)  are the most commonly algorithm used due to low cost, easy implementation and  simplicity. These algorithms are differing from each other according to sensors number, easy or complexity implementation and cost. The best algorithm is select according to accurate and fast tracking performance and minimum error due to changing conditions of weather . In this paper the optimal design for Incremental Conductance (IC) MPPT technique based on Fuzzy Logic controllers tuned by  new optimization technique called  Grey Wolf Optimizer (GWO) is applied for the largest PV project planned in Egypt. This PV project installed in Komombo, Aswan, Egypt and will have a total capacity of 20 MW.  This study provides a comprehensive comparative study based on Average Power (A.P), transient behavior, Energy Availability (E.A)  and Array Fill Factor (A.F.F) to choose the optimum control technique which is more suitable for controlling MPPT in Komombo PV power plant. MATLAB/SIMULINK is used to provide technical study and comprehensive analysis for the proposed PV power plant.}, keywords = {Photovoltaic,Maximum Power Point Tracking,Incremental Conductance,Fuzzy Logic controller,Grey Wolf Optimizer}, url = {https://jaes.journals.ekb.eg/article_19141.html}, eprint = {https://jaes.journals.ekb.eg/article_19141_6f149f494246a1b29f1dadd50a0fa74b.pdf} } @article { author = {Sultan, I and Swief, R and Mostafa, M}, title = {OPTIMAL DG PLACEMENT IN A RADIAL DISTRIBUTION NETWORK FOR RELIABILITY IMPROVEMENT}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1351-1358}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19142}, abstract = {This paper presents an efficient Grey Wolf Optimization technique to improve the reliability of distribution systems. Various reliability objectives such as energy not supplied, System Average interruption Frequency Index and System Average Interruption Duration Index are solved using the Grey Wolf Optimization method for optimal placement of distributed generators in radial feeders for reliability enhancement. Distributed generation sources are becoming more prominent in distribution systems due to the incremental demands for electrical energy and sometimes provide the lowest cost solution to handling low-voltage or overload problems. Siting and sizing of Distributed generation sources have profoundly impacted on the system losses in a distribution network. Assessment of customer power supply reliability is an important part of distribution system operation and planning. Distribution system reliability assessment is able to predict the interruption profile of a distribution system based on system topology and component reliability data. Distributed generation is being adopted in distribution networks with one of the objectives being enhancement of system reliability. Grey Wolf Optimization technique is proposed to obtain the optimal location DG to improve the reliability. The effectiveness of the proposed objective functions has been investigated on standard test distribution systems (69 bus radial distribution systems).}, keywords = {Distributed Generator (Dg),Optimal Location,Power System Reliability,Grey Wolf Optimization,Reliability Improvement}, url = {https://jaes.journals.ekb.eg/article_19142.html}, eprint = {https://jaes.journals.ekb.eg/article_19142_69a5b908516870a82b499ea5a7925fe3.pdf} } @article { author = {Elsaid, S and Zaki, R}, title = {ENERGY MANAGEMENT SYSTEM FOR MULTI-LEVEL ELECTRICAL DISTRIBUTION SYSTEMS}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1359-1370}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19143}, abstract = {Load Management (LM) is an optimization problem which constrained by time of electricity use, peak demand, minimum load and electricity tariffs. The general objective of this research is to study the subject of LM techniques, especially rescheduling the load or part of it to other periods of the day and time of use (TOU) pricing on real industrial plant to evaluate the benefits of applying such management techniques. This thesis will focus on the development of two mathematical models for different types of end users.   These models will enable the utility planner to design a DSM in which demand, time and electricity prices will be used as the control variable of an objective function representing the target of the DSM program. The amount of energy, cost and time of use will reflect the state variables of the system. The first model is a DSM priority selection technique and the second model is an optimal tariff formulation. The applications of peak clipping, valley filling, load shifting, energy conservation and load building programs will be studied and evaluated.}, keywords = {Load management,DSM,TOU,Load shifting,Load building,Energy Conservation}, url = {https://jaes.journals.ekb.eg/article_19143.html}, eprint = {https://jaes.journals.ekb.eg/article_19143_68f9b13febf9fbdaee5a44fe67958e9b.pdf} } @article { author = {Ali, Ayman and Abo Zaid, Salama and Kotb, Abdel Samie}, title = {A SIMPLE ELECTRONIC COMMUTATOR FOR A DC MOTOR}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1409-1316}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19144}, abstract = {The commutator is the weak point of any DC motor and its wear may limit the motor life, however it is an essential part of any DC motor and the commutatorless DC motor is not a true. Many types of brushless DC motors are available now. They have a permanent magnet synchronous motor structure and are driven by special controllers. These controllers are mainly inverters which are considered as electronic commutators. With using solar energy which gives pure DC voltage, it is more suitable to use DC motors or DC drives which can be fed from this kind of energy. In this paper we will introduce a simple electronic commutator design which is based on a single chip. The proposed controller is small enough to be integrated with the motor.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19144.html}, eprint = {https://jaes.journals.ekb.eg/article_19144_25f12f1ac644638d30c858b72ab7f82b.pdf} } @article { author = {Abdel Ghany, M and Abdel Magid, H and Eissa, M and Bahgat, M and Bassuiny, A and Sharaf, Soliman}, title = {PRACTICAL IMPLEMENTATION FOR FUZZY SELF TUNING OF OPTIMAL PID CONTROLLER TO SERVO PERMANENT MAGNET SYNCHRONOUS MOTOR}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1371-1385}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19145}, abstract = {This paper describes the design and practical implementation for speed Fuzzy Self Tuning of Optimal PID control FSTOPID on a Servo Permanent Magnet Synchronous Motor PMSM. In this work, an industrial PMSM system has been identified including its drive. Nonlinear Least Squares Algorithm NLSA is used for model identification. For speed control, a variable load for the PMSM represents nontraditional control problem. One of the solutions to the problem is to apply a FSTOPID controller. This requires reformulating the control problem to include two parts, optimal PID controller and fuzzy logic controller FLC parts. The first part deals with the PID controller tuned using Ant Colony System ACS algorithm. The second one represents the on line fuzzy self–tuned of the optimal PID. The goal of this design is to regulate the speed and improve the transient performance of the PMSM system under load demand variations. Comparative analyses of practical implementation for the PMSM drive system are demonstrated under diverse load. Finally, experimental results show accurate identification and speed favorable performance. The results prove that the proposed controller is very useful for industrial servo PMSM system.}, keywords = {permanent magnet synchronous motor,identification,Ant Optimization Technique,PID Control Fuzzy Logic Control}, url = {https://jaes.journals.ekb.eg/article_19145.html}, eprint = {https://jaes.journals.ekb.eg/article_19145_3153ed8bb8fe048752290195055f9019.pdf} } @article { author = {NEWIR, A and Ibrahim, M and HALAWA, M and ABDELLATIF, O}, title = {DIRECT AND INDIRECT EVAPORATIVE COOLING FOR CLOSED GREENHOUSE DURING THE SUMMER PEAK HOURS}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1321-1328}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19146}, abstract = {This study investigates experimentally, the effect of direct and indirect evaporative system on the temperature and relative humidity distribution inside a greenhouse. Experimental tests on a full-scale greenhouse of sizes 0.9 m x 0.55 m x 2.4 m (W x H X L) were conducted in October 6 University, 6 October city, Giza, Egypt at summer rush hours were used to obtain spatial distribution of air-temperature. Measurements of temperature distributions at about 63 points inside the greenhouse. One of the main conclusions is that experimental results were preserve the temperature variation below 30 оC during the day rush hours, especially in the area designated for the growth of plants inside the greenhouse. Keywords: Greenhouse; direct evaporative cooling; indirect evaporative cooling.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19146.html}, eprint = {https://jaes.journals.ekb.eg/article_19146_762d41096566d2ef6cd90b41dae0a642.pdf} } @article { author = {Abdelaal, M and Al-Ashmawy, M and Rabee, Basem}, title = {DIRECT INJECTION DIESEL ENGINE COMBUSTION MODELING}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1329-1340}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {}, abstract = {It has been realized that, simulation is an effective, less costly tool to investigate the influence of many parameters on any phenomenon. Studying the effects of every single variable is not easy by experimental work. The main objective of the present study is to develop a mathematical model to simulate the flow and thermo-chemical characteristics of the process taking place inside the combustion chamber of a direct injection (DI) diesel engine. A two dimension CFD model was established for a non-premixed combustion process in a direct injection diesel engine. An experimental work was conducted on a 4-stroke single cylinder, DI, diesel engine, to validate the developed model. The predicted results for the engine cylinder pressure, temperature, and heat release rate are compared with those measured experimentally. Good agreement was attained revealing that CFD modeling can be used to predict direct injection diesel engine performance parameters with reasonable accuracy.  }, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19147.html}, eprint = {https://jaes.journals.ekb.eg/article_19147_945727973b60111bef4d5b079e5cd46b.pdf} } @article { author = {Shanab, Belal and El-Badawy, Ayman}, title = {FRANCIS TURBINE PROTOTYPE TESTING AND GENERATION OF PERFORMANCE CURVES}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1341-1350}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19148}, abstract = {Hydroelectric power plant converts the hydraulic power in flowing water to mechanical energy. A key item of any hydro power plant is the governor. The control of the governor depends mainly on the performance curves of the turbine. Studies and measurements in the laboratory have given important information about the model and its characteristics and performance. This study concerns laboratory studies with focus on the characteristics of the Francis turbine model. The laboratory model considered in this study is a test rig set in the Fluid Mechanics laboratory at Mechanical Engineering Department manuf actured by Gilbert Gilkes and Gordon Ltd, representing a Francis turbine hydro power plant model. This manual test rig has been upgraded to control the measurements automatically. The variables measurement technology of the turbine are developed and implemented by using LabVIEW software interface. Performance test on the test rig of  a  Francis  turbine  has  been  carried  out  in  the  laboratory  for various  gate  opening  of  the  turbine. The numerical results for the test rig were implemented to get dedicated values of the six partial coefficients of the Francis Turbine test rig that used for control studies. These partial coefficients are compared with ideal model values.  }, keywords = {Francis Turbine,Lab VIEW,Performance Curves}, url = {https://jaes.journals.ekb.eg/article_19148.html}, eprint = {https://jaes.journals.ekb.eg/article_19148_b507128127b2102f174877e8b3d7ee0f.pdf} } @article { author = {العراقى, محمد}, title = {إعادة تصميم الفراغات السکنية لتلبية احتياجات المستخدمين}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1627-1636}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19149}, abstract = {إن تصميم الفراغات العمرانية عملية لها منهجيتها التقليدية من تحليل النواحي البيئية والاجتماعية ووضع برامج للاستخدامات وتحليل لسلوک المستخدمين ولکن في النهاية هى قرارات فردية يتخذها المصمم قابلة أن تکون صحيحة أو خاطئة وغالبا ما تظهر نتائجها بعد استخدام الفراغ . لذلک يوجد بعدين عند تحليل تلک الفراغات: البعد الاول: تقييم تلک الفراغات و تحديد مدى قدرتها على تلبية احتياجات المستخدمين و تحليل هل تؤدي الدور المنوط بها ام انها تدهورت حالتها وأصبحت اما مساحات مهملة او بؤر لاستخدامات غير مرغوبه. ام البعد الثانى فيتمثل فى إعادة تصميم تلک الفراغات لتلافي معوقات استدامتها ورفع کفاءتها لتوائم احتياجات المستخدمين المتطوره مع التطور في حياة السکان وسلوکهم . وتتبنى هذه الورقة منهجية لإعادة تشکيل ووظائف الفراغات السکنية لتلبية الاحتياجات المتغيرة للسکان وإضافة تحسينات جديدة تجعل الفراغات السکنية أکثر حيوية طبقا لرؤية السکان ومشارکتهم في عملية التصميم.  الهدف من هذا البحث : أولا تحديد مدى رضاء المستخدمين عن أداء فراغات المجموعة السکنية من خلال التحليل السلوکي للمستخدمين. ثانيا المشارکة المجتمعية في عملية إحياء الدور الاجتماعي والترفيهي لفراغ المجموعة السکنية وذلک لحث مصممي الفراغات الخارجية على تفهم والاستجابة لمتطلبات السکان المادية والنفسية لخلق روح جديدة للفراغات العامة داخل المدينة. تم إجراء دراسة تحليلية على نموذجين من فراغات الإسکان الاجتماعي بحي المقطم اعتمادا على المشاهدة الميدانية والاستقصاء الميداني لتحليل النواحي السلوکية بها ليکون أساس في إعادة تصميم المناطق السکنية وتحقيق استدامتها من وجهة نظر المستخدمين.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19149.html}, eprint = {https://jaes.journals.ekb.eg/article_19149_800b053f9b688b4b94a685aa173f9673.pdf} } @article { author = {AbdElAzim, AlSayed}, title = {A MODEL OF EARLY DETECTION AND DIAGNOSIS OF AUTISM SPECTRUM DISORDER}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1387-1392}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19150}, abstract = {Autism and autism spectrum disorder (ASD) are a group of severe developmental disorders that are characterized by 3 core sets of developmental abnormalities: impairment of social interaction, verbal and nonverbal communication, and restricted, repetitive patterns of behavior. The disorder is far more common than previously thought. There is no cure for autism but it is apparent that early detection followed by early intervention is likely to provide the best chance of long-term beneficial outcome in this condition. Unfortunately, until recently, there had been no validated method of comprehensive early detection of ASD, nor a tool with adequate sensitivity and specificity to be recommended for universal screening of preschool children with ASD. We describe a model of comprehensive early detection and diagnosis of ASD that is achieved by using the resources of primary care workers and a multidisciplinary team with skill and experience in assessing developmental problems in young children and specific expertise in ASD. Both early detection and diagnosis may be carried out by this team in collaboration with parents and primary care professionals and can result in high rates of detection and diagnosis of ASD.}, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19150.html}, eprint = {https://jaes.journals.ekb.eg/article_19150_8a41b8e32e40733620559ff5fb0decc9.pdf} } @article { author = {Abd El-Kareem, Mohamed and Elshenawy, Ayman and Elrfaey, Fawzi}, title = {MAIL SPAM DETECTION USING STACKING CLASSIFICATION}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1242-1255}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19151}, abstract = {Spam mails are very fast growing and costly problem, that becomes a big trouble now-a days as they are very dangerous to recipients. They cause a lot of problems such as waste of storage space, reduction of communication band width and time losing for the identification and removal of their causes. In this paper a machine learning technique of two proposed stacked configuration will be applied on email data set. This data set has two types of emails, ham mails and spam mails. The preprocessing of these mails based on the analysis of all parts that constitute an email. Rather than considering only one part of an email such as content (mail body).  The results of the proposed algorithm will be analyzed based on the training and testing of various performance evaluation metrics. Finally a comparative study will be applied with some of the recent models developed for this subject.}, keywords = {Spam,Ham,Stacking,Classifier}, url = {https://jaes.journals.ekb.eg/article_19151.html}, eprint = {https://jaes.journals.ekb.eg/article_19151_0a98cbb3604f953ff3183377b036bbf2.pdf} } @article { author = {Elsayed, Alzahraa and Sharaf, Mohamed and Elrefaai, Fawzy}, title = {MA-LEACH: ENERGY EFFICIENT ROUTING PROTOCOL FOR WSNS USING PARTICLE SWARM OPTIMIZATION AND MOBILE AGGREGATOR}, journal = {Journal of Al-Azhar University Engineering Sector}, volume = {12}, number = {45}, pages = {1401-1407}, year = {2017}, publisher = {Al-Azhar University; Faculty of Engineering}, issn = {1687-8418}, eissn = {3009-7622}, doi = {10.21608/auej.2017.19152}, abstract = {Routing protocols for wireless sensor networks pay a great attention to the limited resources of the nodes. In this paper, we study LEACH routing protocol and its performance and propose a new protocol, MA-LEACH. We introduce a mobile aggregator which is a gadget adopted to mitigate the overhead on the cluster heads(CHs). In addition, we optimize the trajectory using particle swarm optimization (PSO). Hence, we adapt the TSP problem to our protocol to determine the optimal trajectory that a mobile aggregator could travel to visit every cluster head in the network. We simulate the proposed protocol in MATLAB and the results reveal that it outperforms LEACH in network lifetime and energy consumption. Also, we compare our findings with a recent extension to the LEACH called LEACH with fuzzy descriptors. The simulation results show that MA-LEACH surpasses LEACH with fuzzy descriptor.  }, keywords = {}, url = {https://jaes.journals.ekb.eg/article_19152.html}, eprint = {https://jaes.journals.ekb.eg/article_19152_9c2cf0b476a99af7e379bc79df47a97c.pdf} }