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Results in Journal JES. Journal of Engineering Sciences: 1,213

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Omnia Mohamed Nabil, Nahid Hussein Afia, Lamia Ahmed Shihata
JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.133685

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Fatma Khairy Mohamed , Safwat Mohamed Ramzy, Usama Sayed Mohammed
JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.45609.1017

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Alyaa Gadelrab, Yasser Mohamed, Moumen El-Melegy
JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.42513.1013

Ashraf Hemeida, Shimaa Mohamed, Mountasser Mahmoud
JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.42349.1011

JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.42391.1012

Abstract:
One of the pillars of architecture is modern environmental building technologies, in which the modern architectural theories seek to achieve the environmental compatibility in between building materials and the environment. This is done through the use of modern environmental technologies and treatments in buildings in projections, façades, and sectors. Facades of buildings using modern environmental architectural technologies and treatments allow an increase or decrease in lighting, ventilation, and temperature. It is the conditions of internal spaces, which require the architectural designer to consider when using modern environmental architectural technologies and treatments. This achieves compatibility with climatic variables throughout the whole year. Therefore, the research aimed to identify the applications of modern environmental technologies for building envelopes, how to achieve thermal comfort for users, and the extent to which it rationalizes energy consumed in achieving thermal comfort. To achieve the goal of the research, the study analyzed the covers of seven buildings, in terms of modern environmental technologies. An analytical comparison was also made between the study cases to determine how these technologies achieve thermal comfort. From which, it became clear the extent of the impact of the applications of modern environmental technologies on the case studies in obtaining a built environment characterized by thermal comfort suitable for users as well as the extent of rationalizing energy consumed in achieving thermal comfort in the internal spaces of buildings.
Mohamed. O. Elsibaey, Zakaria. H. Awadallah, Mohamed Zakaria, Omar. A. Farghal
JES. Journal of Engineering Sciences, Volume 48, pp 888-909; doi:10.21608/jesaun.2020.118571

Abstract:
This paper presents an experimental investigation to clarify the behaviour of reinforced concrete square columns strengthened using ferrocement jacket. Strengthening using ferrocement jacket is relatively a new technique, which has a high strength/weight ratio, good resistance to cracking and impact loading, acceptable resistance to fire, and more resistance to corrosion than traditional materials. Ten reinforced concrete short columns with nominal cross-sectional dimensions of 200 × 200 mm with a total length of 1200 mm were cast and tested under axial loading until failure. The main parameters in this study were the number of layers of wire mesh, type of wire mesh, and the cement mortar strength. The results showed the effectiveness of the ferrocement jacket in improving the column capacity and reducing the vertical and lateral deformation. The results from the experiment were compared with the theoretical results obtained from the modified ECP 203 and modified ACI 318 equation codes.
JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.42055.1009

Abstract:
The main goal of this study is to undertake the three methods of life cycle assessment (LCA), the environmental performance (EP), and the building information modeling (BIM) to determine the environmental performance and impacts of two window frame materials: aluminum and wood. This study has been carried out in a proposed project at the Assiut University campus. The LCA has been conducted by assessing materials and processes involved in manufacturing the two window frame types using the SimaPro. The LCA scope of this research covers from cradle to the gate with a designated system boundary. The network flow has been drawn to produce one kilogram of aluminum and wood; the quantities data were gathered from the BIM (using Autodesk Revit). Selecting the database is carefully picked from the Ecoinvent dataset to be closer to Egypt's manufacturing processes. Afterwards, the IMPACT 2002+ with midpoint and endpoint calculations has been used. Finally, the LCA results have been compared with the EP results (using DesignBuilder) to determine the best choice between the two materials. The integration analysis shows that the aluminum industry has higher negative environmental impacts and environmental performance than the wood industry. The total midpoint results of the two materials are found to be 29.6 for aluminum, and 7.57 the wood. Turning to the endpoint results, human health and resource depletion impacts are the most significant results. The human health scored the highest value, with 13.9 for aluminum and 3.51 for wood. A novel framework for integrating LCA, BIM, and EP for a proposed building during the early phases of a project has been conducted in this study. The presented study can be used as a model for integrating comparative analysis on other proposed projects as the LCA applications in Egypt are scarce due to the absence of a reliable database. This study has introduced a value applying an approach to select the appropriate life cycle inventory database from the Ecoinvent dataset. The research findings contribute to choosing the most suitable window frame materials with the most energy-efficient effect and the least environmental burden. Moreover, it can help the concerned legislative bodies and the decision-makers.
Alyaa Emad Eldin Abdel Fattah, Lamies Saad Eldin Algizawy, Heba Mohamed Ahmed Abdou
JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.113788

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Wail Ahmed Fahmy, Nasr Hekal
JES. Journal of Engineering Sciences pp 1-26; doi:10.21608/jesaun.2020.40660.1006

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JES. Journal of Engineering Sciences; doi:10.21608/jesaun.2020.111400

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Asmaa Eldiasty , Medhat Samra, Alaa Eleishi
JES. Journal of Engineering Sciences, Volume 48, pp 910-926; doi:10.21608/jesaun.2020.120427

Abstract:
In New Damietta city, many residential neighborhoods have the appearance of empty, dull, and monotonous places. These neighborhoods have low levels of urbanity in terms of vital and flourishing street life. Some researchers attribute the low levels of urbanity in new cities to the urban planning approaches undertaken (the neighborhood unit). To conduct this research, we used space syntax analysis as a key method to study urbanity in New Damietta city. In addition to other methods such as direct field observations through which we observed land use patterns and activities occurred in the study area. Observed land use patterns and activities were mapped in Geographical Information System (GIS). This study finds out how space syntax is an effective tool that can evaluate the current situation of urbanity and how it can be used as a predictive tool in the planning processes in the forthcoming generations of new cities.
Salwa A Megahed
JES. Journal of Engineering Sciences, Volume 48, pp 951-978; doi:10.21608/jesaun.2020.124883

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JES. Journal of Engineering Sciences, Volume 48, pp 979-997; doi:10.21608/jesaun.2020.124884

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Mena Gamel Youssef , Abdel-Rahman Megahed Ahmed, Mohamed Mahmoud Ahmed, Omar Ahmed Farghal
JES. Journal of Engineering Sciences, Volume 48, pp 805-829; doi:10.21608/jesaun.2020.39384.1003

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Mohamed Fawzy , Yasser G. Mostafa, Farag Khodary
JES. Journal of Engineering Sciences, Volume 48, pp 845-868; doi:10.21608/jesaun.2020.114602

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JES. Journal of Engineering Sciences, Volume 48, pp 830-844; doi:10.21608/jesaun.2020.112941

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Mostafa H. Shoaib, Yasser G Mostafa, Yousef A. Abbas
JES. Journal of Engineering Sciences, Volume 48, pp 869-887; doi:10.21608/jesaun.2020.115673

Abstract:
Robust building detection from satellite images has been a subject of interest for several decades. Very High Resolution (VHR) satellite images support the efficient extraction of manmade objects. The main aim of this paper is to present an approach for building extraction from VHR satellite images for map updating in Egypt. To achieve this aim, a comparison of pixel and object-based classification techniques has been applied. Then, different refinement processes based on shadow, context, shape, and Digital Surface Model (DSM) data are carried out. Two study areas from the VHR satellite images for Assuit and Sohag cities are used. A comparison of the classification techniques shows that the Maximum Likelihood Classifier (MLC) for pixel-based technique and Support Vector Machine (SVM) for object-based technique give the highest overall accuracy results. Refinement based on shadow, context, shape, and DSM information improves the overall accuracy with an average of 18%. Thus, the building extraction results can contribute significantly to update maps in Egypt.
JES. Journal of Engineering Sciences, Volume 48, pp 927-950; doi:10.21608/jesaun.2020.120433

Abstract:
Reservoirs are an important source of water supply, provide hydropower, reduce the deficiency influences, and provide flood protection. Due to the dam structure and reservoir founding, the releases from the dam has become more restrained and the hanging sediment concentricity summits have been decreased considerably and accumulated upstream the dam. Sediment siltation has increasingly reduced the efficiency of reservoir functionality throughout the years by declining the storage capability. Determining the reservoir sedimentation influence on the dam operation is important to holding current operation and preparing for future polices. The existing paper deals with the review and assessment of the reservoir sedimentation effect on operation of Aswan High Dam (AHD) in Egypt. A new simulation model was developed and calibrated for Aswan High Dam Reservoir (AHDR) to evaluate the reservoir sedimentation effects on the factors affecting the operation of the dam. These factors are Toshka spillway outflows, upstream water levels of AHD, dam safety, withdraw from the reservoir, the losses due to the evaporation and the hydropower generation from AHD. The results of the study displayed that the factors affecting the operation of AHD were affected due to presence of these deposits in AHDR. Therefore, the reservoir sedimentation effect should be considered to implement or develop of simulation models for AHDR.
Radwa Salama, Mohammed Ghareeb, Shaimaa El Sherbini
JES. Journal of Engineering Sciences, Volume 48, pp 577-595; doi:10.21608/jesaun.2020.109371

Salwa Megahed , Khaled Ali Youssef
JES. Journal of Engineering Sciences, Volume 48, pp 687-713; doi:10.21608/jesaun.2020.112220

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Mamdouh Ali Yousef, Magdy Mohamed Radwan, Ebtesam AbdAllah Naser Amber
JES. Journal of Engineering Sciences, Volume 48, pp 649-686; doi:10.21608/jesaun.2020.111431

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Basma G. A.-F El Awadi, Mohanad A. M. Fouda, Alaa S. El Aishy
JES. Journal of Engineering Sciences, Volume 48, pp 633-648; doi:10.21608/jesaun.2020.111331

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Mohamed Nagah, Ahmed Arafa, Ahmed Attia M. Drar, Yehia. A. Hassanean
JES. Journal of Engineering Sciences, Volume 48, pp 554-576; doi:10.21608/jesaun.2020.109362

Hany. F. S. Abu-Seada , Mohamed M.M. Slama, Mohamed A. M. Hassan, M. A. Ebrahim
JES. Journal of Engineering Sciences, Volume 48, pp 596-612; doi:10.21608/jesaun.2020.111121

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Raghda Abdel Ghader Mahmoud, Mohanad Ali Mohamed Fouda, Lamis Saad Eldin El-Gezawi
JES. Journal of Engineering Sciences, Volume 48, pp 714-748; doi:10.21608/jesaun.2020.112440

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JES. Journal of Engineering Sciences, Volume 48, pp 613-632; doi:10.21608/jesaun.2020.110506

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Talaat Abdel-Wahed, Hassan Younes, Ayman Othman, Amira El-Assaal
JES. Journal of Engineering Sciences, Volume 48, pp 360-370; doi:10.21608/jesaun.2020.107603

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A. Megahed Ahmed, Mohamed A. A, Atef E. Mahmoud
JES. Journal of Engineering Sciences, Volume 48, pp 396-405; doi:10.21608/jesaun.2020.107707

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Nermeen Mohammed Sayed Ahmed
JES. Journal of Engineering Sciences, Volume 48, pp 491-509; doi:10.21608/jesaun.2020.108954

Abdel-Rahman Megahid, Hassan Younis, Talaat Abdel-Wahed, Eman Abdel-Sabour
JES. Journal of Engineering Sciences, Volume 48, pp 373-382; doi:10.21608/jesaun.2020.107604

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Hossam Mahmoud Massoud
JES. Journal of Engineering Sciences, Volume 48, pp 406-420; doi:10.21608/jesaun.2020.107708

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Lobna Mahmoud Mubarak Ahmed, Zinab Hassan Elgamily, Mohammed Essamat Elattar
JES. Journal of Engineering Sciences, Volume 48, pp 430-446; doi:10.21608/jesaun.2020.108950

Ayman R. Hamdallah, Ahmad Abdullah
JES. Journal of Engineering Sciences, Volume 48, pp 383-395; doi:10.21608/jesaun.2020.107706

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Heba Mohamed Ahmed Abdou, Rania Abdul Lateef Ahmed Ghanam
JES. Journal of Engineering Sciences, Volume 48, pp 520-537; doi:10.21608/jesaun.2020.108956

Rania Fouad Ismail, Zeinab Mohamed Elrazaz, Nasreen Fathy Abdelsalam
JES. Journal of Engineering Sciences, Volume 48, pp 447-467; doi:10.21608/jesaun.2020.108951

Abdelmonteleb Mohammed Aly, Mohammed Hassan Hassn, Yman Ragab Abdel Rady, Alia Tarek Mohammed
JES. Journal of Engineering Sciences, Volume 48, pp 468-477; doi:10.21608/jesaun.2020.108952

Dalia Wagih A.AlHalim
JES. Journal of Engineering Sciences, Volume 48, pp 287-301; doi:10.21608/jesaun.2020.135255

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Randa M. A. Mahmoud, Amr M. A. Youssef, Nady M . Abdel Karim
JES. Journal of Engineering Sciences, Volume 48, pp 245-261; doi:10.21608/jesaun.2020.135249

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Pakinam Nabil Barakat
JES. Journal of Engineering Sciences, Volume 48, pp 317-327; doi:10.21608/jesaun.2020.135260

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