ORIGINAL_ARTICLE
Future Technology Effect on Learning Environment Design - Engineering Learning Environment in Egypt as a Case Study.
The relationship between the triangle: "Architecture, Energy and human" since the dawn of history, a subject rich for scientific research with its mutual relations between the elements and phenomena vague - such as those architecture ancient Egyptian - still unfolding realities of dimensions with the development of science and methods of measurement of power, the development of science moderation between biology, architecture, and access to contemporary concepts such as: biology buildings, bio engineering, and others. With the increasing sense of psychological pressure of modern humans, the accelerated rhythm of life and its various activities, has ernerged the concept of diseases of the buildings as a manifestation of disruption of the internal energy of the spaces and affected by the shadows of modern technology such as electromagnetic waves, stresses the floor, and the effects of controls in the climate, as well as psychological effects resulting from elements of engineering Arch of procedure of the spaces, and thus the quest is assumed that these factors, which in turn affects the vital energy of man, who spends most of his day in the blanks architecture, whether residential, educational, administrative or other means it is an essential factor in achieving the functional efficiency of the vacuum on the one hand and psychological comfort to people on the other hand, and in light of these backgrounds poses the following research question: How can the architectural controls in bioenergy for a person within the architectural space? And ends with scientific research to make recommnendations, and proposals to develop the method of interior design of the architectural space in general, and educational spaces replace Applied experience in particular.
https://bfemu.journals.ekb.eg/article_124891_39b6ee5e7a5cbaeadc94fd93ab45094b.pdf
2020-11-23
1
13
10.21608/bfemu.2020.124891
Medhat
Samra
medhatsat@yahoo.com
1
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
LEAD_AUTHOR
Alaa
Shams El-Den
2
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
ORIGINAL_ARTICLE
Reviving Principle and how to use it in solving the Land Expencevness Problem in Egypt.
This paper discusses the housing problem in Egypt which is due to the high prices of land and apartments. This problem affects all Egyptian families and consumes most of their income to cover rents and maintenance payments. This paper suggests the Islamic principle of Revivication (Ehyaa) as a way to solve this problem. Ehyaa permits any one to own any dead land by reviving it with building it, planting in it, dig a well in it, or any positive act which makes it more valuable or desirable. Reviver has to do so before Iimited time which differs according to site and circumstances, no one else can revive it during this period of time, but if it came to an end land becomes revivable again to anyone else. Ehyaa can motivate many people to build and settle down in the desert which forms more than 95% of Egypt's land, and will increase the urban space and makes the land free to use and inhabit
https://bfemu.journals.ekb.eg/article_124892_b6c538f8db56b132b463f7fa5e3bd090.pdf
2020-11-23
14
22
10.21608/bfemu.2020.124892
Hala
Raslan
1
Deploma in Architecture., Mansoura University 2005., Faculty of Engineering., Mansoura, Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
Features of Sustainability in the Egyptian Architecture.
There is an increasing global attention of the environment, and there are modern concepts trying to link the architecture with the environment. The Egyptian architecture influenced by the environment since the ancient times, where the Pharaohs built their civilization and adapt it to the surrounding environment through the use of environmental motives and respect the surrounding climate, Also the Islamic architecture in Egypt was characterized by the Environmental design used to provide a comfortable interior with the use of local available materials. By the beginning of the twentieth century appeared the vernacular and local environmental architecture pioneered by architect Hassan Fathy, who maintained the features of Egyptian architecture and used it according to the environment and the needs of users. And by the time this trends start to diminish and became individual attempts to activate the thoughts of sustainability in architecture, where we can find some projects with sustainable and environmental approaches, and finally we found some trials to get international accreditation, where a branch of (HSBC) bank in Egypt has achieved a Golden LEED certificate, and that may represent local Egyptian sustainable architecture.
https://bfemu.journals.ekb.eg/article_124897_435d68a6eb4d0e527dfc5d9d3e99a375.pdf
2020-11-23
23
33
10.21608/bfemu.2020.124897
Eman
Nasr
arch_eman_hany@yahoo.com
1
Instructor., Architectural Department., Faculty of Engineering., El-Mansoura university., Mansoura., Egypt.
AUTHOR
Alaa
El-eashy
2
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura university., Mansoura., Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
Prediction of Surface Roughness of Turning Operations Using Computer Vision.
It is well known that measuring surface roughness is vital to quality control of the machined work piece. Recently, vision systems have been applied in industries for quality control and online inspection. Thus, measuring surface roughness using computer vision became easier and more flexible. Texture features are one of the most important techniques that have been utilized in industries in many applications. In this paper, the texture features of the gray level co-occurrence matrix (GLCM) have been utilized to predict surface roughness of specimens machined by tuning operations. The relationship between GLCM texture features and surface roughness has been investigated to discover which texture features can be used to predict surface roughness. The correlation coefficient between each texture feature and the arithinetic average height (Ra) was calculated and discussed. The investigation showed that six texture features are highly correlated with Ra. Therefore, a software has been developed to predict surface roughness for specimens machined by turning operations using these texture features. The results showed that the maximum percentage of error between the actual Ra and the predicted Ra was about ±7%.
https://bfemu.journals.ekb.eg/article_125054_8f5dfbe4120378d6383027155370fb3e.pdf
2020-11-23
1
13
10.21608/bfemu.2020.125054
Surface roughness
Computer Vision
Image processing
Texture Features
Elamir
Gadelmawla
esamy@mans.edu.eg
1
Associate Professor., Production Engineering and Mechanical Design Department., Faculty of Engineering., El-Mansoura University., 35516 Mansoura., Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
A Novel Light Sectioning Vision System for a Three Dimensional Surface Roughness Assessment.
Standard roughness measurement procedures depend heavily on stylus instruments which have only limited flexibility in handling different parts. On the other hand, optical non-contact techniques are very interesting for 3D characterization of sensitive and complex engineering surfaces. In this study, a new approach is introduced to measure surface roughness in three dimensions by combining a light sectioning microscope and a computer vision system. This approach has the advantages of being non-contact, fast and cheap. A prototype version of a user interface program, currently named SR3D Vision, has been developed to manage three dimensional surface roughness measurements. A light sectioning microscope is used to view roughness profiles of the specimens to be Measured and the vision system is used to capture images for successive profiles. This program has been totally developed in-house using MatlabTM software to analyze the captured images through four main modules: (Measurement controller, Profile or surface extraction, 2D roughness parameters calculation and 3D roughness parameters calculation). The system has been calibrated for metric units and verified using standard specimens. In addition, the system was used to measure various samples machined by different operations and the results were compared with a commercial software and a web-based surface metrology algorithm testing system. The accuracy of the system was verified and proved to be within ±4.8% compared with these systems.
https://bfemu.journals.ekb.eg/article_125069_d299e207072207430ec881a6fa6d0869.pdf
2020-11-23
14
26
10.21608/bfemu.2020.125069
3D surface roughness
Computer Vision
Light sectioning
Ossama
Abouelatta
abouelatta@mans.edu.eg
1
Professor of Production Engineering and Mechanical Design Department., Faculty of Engineering., El-Mansoura University., 35516 Mansoura., Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
Performance of Three-Dimensional 180°-Curved Diffuser.
Flow characteristics in AR=2, AS = 2, 180° curved diffuser is investigated experimentally by a 5-hole Pitot tube, The Pitot tube is calibrated by a special orientation mechanism to get a calibration data file to be processed by the multi-probe program. Measurements of the three velocity components (u, v, w), total and static pressures for the inlet and six downstream sections located at 30° intervals from the diffuser inlet, from convex to concave walls and top to bottom walls. The wall static pressures in the inid-span between the top and bottom walls at convex and concave walls were measured. Contours of the third velocity component show the secondary motion clearly induced by the movement of fluid from convex to concave wall and reverse. The maximum transverse velocity is about 20% of inlet mean velocity as a result of low aspect ratio of the diffuser exit. The overall pressure recovery achieved was 25.6% of the inlet dynamic pressure due to separation and recirculation occurred at the convex wall. These measurements can be used for the validation and inprovement of the turbulence models that used to simulate the flow inside the curved diffuser. It was found that the models predict a later
https://bfemu.journals.ekb.eg/article_125078_f4b5facb0bbca84740b3fc4135395176.pdf
2020-09-01
27
43
10.21608/bfemu.2020.125078
H.
Mansour
mnhsaadanyh@yahoo.com
1
Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, El-Mansoura 35516, Egypt
LEAD_AUTHOR
M.
Mohamed
msafwat@mans.edu.eg
2
Professor of Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
Berge
Djebedjian
bergedje@mans.edu.eg
3
Professor of Mechanical Power Engineering Department., Faculty of Engineering., Mansoura University., El-Mansoura 35516., Egypt.
AUTHOR
Sherif
Yousry
sherif.yousry@hotmail.com
4
Instructor., Mechanical Power Engineering Department., Faculty of Engineering., Mansoura University., El-Mansoura 35516., Egypt.
AUTHOR
ORIGINAL_ARTICLE
Experimental Investigation of Flow Field Characteristics behind V-Shaped Bluff Bodies.
Flow features and vortex shedding in the wake zone behind V-shaped bluff bodies are experimentally investigated. These experiments were done for a single V-shaped body at various Reynolds number between 4.84 x 104 - 5.91 x 104, span angles between 45°-90°, and angles of attack between 0 and 15o . Experiments were also made for two V-shaped bluff bodies arranged in tandem and in the same vertical plane with different spaces between them. With the aid of a water tunnel, the phenomena of vortex shedding and flow recirculation behind the V-shaped bluff body were illustrated. Results show that the increase of Reynolds number monotonically reduces the length of the recirculation zone. A similar flow structure of the flow exists among near wake flows of V shaped bodies with different span angles. Increasing the span angle, the size of the recirculation zone increases. The variation in attack angle changes slightly the size of the recirculation zone and shifts the recirculation zone vertically. For the two bodies arranged in tandem, the size of the recirculation zone increases as increasing the spacing between the two V-shaped bodies. For the two bodies in the same vertical plane, decreasing the spacing between the two bodies yields to earlier mixing between the flows in the two wakes.
https://bfemu.journals.ekb.eg/article_125079_1b9a1d36c0865dd1bfb115a74b3b4e99.pdf
2020-11-23
44
60
10.21608/bfemu.2020.125079
Atef
Alam El-Din
1
Mech. Power Eng., Faculty of Engineering, Port-Said University, & Vice President of Port Said University.
LEAD_AUTHOR
Gamal
Moustafa
2
Mech. Power Dept., Faculty of Engineering, Port Said University., eGYPT
AUTHOR
Mohammed
Bakr
3
Mech. Power Dept., Faculty of Engineering, Port Said University.
AUTHOR
ORIGINAL_ARTICLE
Heat and Fluid Flow in a Tube with Helical Tape around Rod.
Forced convective heat transfer and friction factor for nanofluid flows inside circular horizontal tube with inserting helical tape, is experimentally studied. Electric heater is wrapped around the outer surface of the tube to obtain a constant and uniform heat flux at the tube wall. Experiments are conducted with adding nano-particles (Al2O3) to water up to 0.35% by volume to obtain different concentrations of nanofluids. An experimental test loop equipped with the required measuring instruments was designed and constructed to assess the effects of nano-particles concentration, mass flow rate, and applied heat flux on the convection heat transfer process and pressure drop. The tested tube fitted with screw helical tape inserts to evaluate its effects on heat transfer rate and friction factor with nanofluid and pure water as a working fluid. The measurements of temperature, flow rate, applied volt and pressure drop are recorded and manipulated to calculate the convective heat transfer coefficient and friction factor. The obtained experimental results show that, wall temperature is reduced by using nanofluid compared with pure water. Accordingly, the convection heat transfer coefficient increased when using nanofluid and it also increased with increasing heat flux and mass flow rate (Reynolds number). Higher rates of heat transfer and pressure drop are obtained from the tube fitted with screw helical tape insert compared to flow in a plain tube under similar conditions. This improvement in the convection heat transfer coefficient characterized by a swirling flow as a result of the secondary flow of the fluid flow inside tube with helical tape and the area of the tape inserted. The average value for the thermal hydraulic performance (ŋ) for tube with inserting helical tape was 1.4 for water only, and 1.8 for nanofluid at concentration 0.2%. Comparison with the previous work shows fairly agreement. A correlation is obtained between Nusselt number and operating parameter.
https://bfemu.journals.ekb.eg/article_125080_d11246f5e465d0e7c4d37a3bc6da5b84.pdf
2020-11-23
61
75
10.21608/bfemu.2020.125080
Nanofluid
Convective heat transfer, helical tape around rod inserted, Horizontal tube
M.
Saad El-Din
1
Mechanical Power Engineering Dept., Faculty of Engineering. Mansoura University, Mansoura, Egypt
LEAD_AUTHOR
M.
Mousa
mgmousa@maos.edu.eg
2
Power Engineering Dept., Faculty of Engineering. Mansoura University, Mansoura, Egypt
AUTHOR
M.
Nassar
3
Mechanical Power Engineering Dept., Faculty of Engineering. Mansoura University, Mansoura, Egypt
AUTHOR
ORIGINAL_ARTICLE
Investigating the Use of Recycled Plastics as Shrinkage Reinforcement in Non-Structural Concrete Slabs.
The aim of this study is to investigate the potential of using recycled plastics waste as reinforcement in non-structural concrete slabs. Two types of recycled plastics are used; the first is Recycled High Density Polyethylene in randomly-distributed shredded pieces for the percentages of 1%, 2% and 3%, by volume. The second type is Recycled Low Density Polyethylene, cylindrical in shape and 3-mm in diameter. Mesh reinforcement are made out of these fibers with the percentages 0.1%, 0.2%, and 0.3% and tested for drying shrinkage, The results show that adding recycled plastics to the concrete mix can limit drying shrinkage far better than steel reinforcement when used in certain percentages but it has a negative impact on both tensile and compressive strengths. Thus, it is recommended that recycled plastics can be used in non-structural concrete.
https://bfemu.journals.ekb.eg/article_124903_f568b87c828c099596a47b452c21f872.pdf
2020-11-23
1
9
10.21608/bfemu.2020.124903
Shrinkage Reinforcement
Drying Shrinkage
slabs
Compressive strength
Recycled Polyethyline
Samir
Shihada
sshihada@iugaza.mail.edu.ps
1
Civil Engineering Department., Islamic University, Gaza p.o Box 108, Gaza, Palestine
LEAD_AUTHOR
ORIGINAL_ARTICLE
Ongoing Trends of Knowledge Representation for Semantic Web: Review Study.
The Web is the richest information repository, but most of the information it holds is unstructured. Moreover, its power is limited by the ability of human users to navigate the various sources for the information they require. To overcome this defect, semantic web vision is anticipated to be a promising path towards transforming the present web content into a machine understandable. To support this vision, augmenting web pages with description about the content they hold is necessary to make it possible to reason about it. A major challenge is to capture knowledge and structure it in a format that can be processed automatically. Therefore, knowledge representation techniques, namely annotation and ontologies, support sharing common understanding of a domain among people and computers. A large number of tools have been developed to help web content annotations and ontology creation. This paper presents a generic review of knowledge representation techniques and tools that have been developed to support annotation as well as ontology building showing advances and ongoing research.
https://bfemu.journals.ekb.eg/article_124938_4399325fce07348d816b0779efc64959.pdf
2020-11-23
1
9
10.21608/bfemu.2020.124938
Semantic Web
knowledge annotation
Representation
ontology
A.
Riad
amriad2000@yahoo.com
1
Head of Information System Department., Faculty of Computers and Information Sciences., Mansoura University, Mansoura, Egypt
LEAD_AUTHOR
Hamdy
Elminir
hamdy_elminir@hotmail.com
2
Head of Communication Department., Misr Academy for Engineering& Technology
AUTHOR
Mohamed
Abu ElSoud
mohamed_hossieny@yahoo.com
3
Computer Science Dept., Faculty of Computers and Information Sciences. Mansoura University, Mansoura, Egypt
AUTHOR
Sahar
Sabbeh
m_sabbeh@yahoo.com
4
Alzarka Higher institute for administration & computer sciences
AUTHOR
ORIGINAL_ARTICLE
Modeling of Synchronous Generators for Internal Faults Simulation Using Matlab/Simulink.
This paper presents a mathematical model for synchronous generator that can be used for internal faults simulation. The model can be used to produce realistic test waveforms for the evaluation of protection system used for synchronous generators. The model is capable of simulating any kind of internal faults on any type of winding configurations. The mathematical model is implemented in MATLAB-SIMULINK. It has been demonstrated that the MATLAB is a powerful tool to implement the complex machine model. The accuracy and simplicity of the model make it reliable and efficient in synchronous generator internal faults study.
https://bfemu.journals.ekb.eg/article_124981_026430ce392e971033aecec7e5657229.pdf
2020-11-23
10
22
10.21608/bfemu.2020.124981
Internal faults
Synchronous generator
Modelling
Dynamic simulation
Winding distribution
Ahmed
Helal
1
Dept. of Elec. Engineering and Control, Faculty of Engineering, Arab Academy for Science and Technology, Alex. Egypt
LEAD_AUTHOR
Magdy
El-Saadawi
m_saadawi@mans.edu.eg
2
Professor of Electrical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
Ahmed
Hatata
a_hatata@mans.edu.eg
3
Electrical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
ORIGINAL_ARTICLE
A Strategy for Refining Fault Zone Identification of Distance Relays.
A modified setting strategy for deciding the correct fault zone in distance relays is introduced, It depends on exchanging information between local relays in the same station in addition to a command from the remote end relay. As a start point, the conventional setting strategy is applied to initially determine which distance relays should operate and their zones of operation. Based on this preliminary information, the proposed system locates the faulty line. Then, the set of relays with suspected preliminary operation zones, that needs to be examined, is identified using some rules. This limited set of relays is solely considered in the next validation stages to save the processing time. The scheme verifies the relay zone reach in two steps. In the first step, a rule-base is applied to determine a modified zone for the relay. In the second step, another rule-base is applied to determine the final zone for the relay based on its modified zone. The governing rules for the proposed strategy are presented. The strategy is examined against a wide range of setting problems of a real part of a high-voltage network. The results confirm that the prop < em>osed strategy achieves the required accurate, sensitive, and selective relay operation.
https://bfemu.journals.ekb.eg/article_125013_599dce539c33a3f2d1dc487d1af0d334.pdf
2020-11-23
23
32
10.21608/bfemu.2020.125013
A.
Elmitwally
1
Elect. Eng. Dept., Mansoura University, Mansoura, 35516, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
Preparation of some Water Soluble Polymers for Consolidation of Archaeological Wood.
in the preservation of cultural heritage items, the use of polymeric materials for the consolidation and protection of artifacts with historical and artistic value is widely accepted. This area is vast and includes studies of various objects different materials such as wood, stone, textiles, and paper. The aim of this article is the preparation and evaluation of some Water Soluble polymers according to its properties for consolidation of archaeological wood. Elucidation the structure of the Synthesized polymers by using different spectroscopic techniques such as Fourier transforms infrared spectroscopy (FTIR). Evaluation of the performance characteristics of the treated specimens by several techniques such as scanning electron microscopy (SEM) and Surface hardness.
https://bfemu.journals.ekb.eg/article_125178_8f3fa9d4e1bf4cf91d18da73e4a2e817.pdf
2020-11-24
1
9
10.21608/bfemu.2020.125178
A.
Eissa
1
Faculty of Science, Chemistry Department, Benha University, Benha, Egypt.
LEAD_AUTHOR
I.
Aiad
2
Egyptian Petroleum Research Institute., EPRI., Cairo., Egypt.
AUTHOR
A.
Attia
3
General Director of Restoration., Islamic Art Museum., Cairo., Egypt.
AUTHOR
O.
Mohammed
4
Chemistry Department., Faculty of Science., Benha University., Benha., Egypt.
AUTHOR