ORIGINAL_ARTICLE
Urban Management Institutions in Sana'a City: Structure and Problem.
In spite of introducing decentralization model of urban management in Sana'a city, dissatisfaction with the ability of existing political system to respond to the views and needs of all social groups is nowadays well publicized by the demonstrations and anti-government movements not only in Sana's city but in Yemen as a whole. Formal existing mock democracy in which power is actually concentrated in the hands of a few leads to the emergence of board social movements calling for this authoritarian political system to leave (erha'al). This research could potentially make a much-needed contribution to the understanding of Yemen's urban management institutions and consequently local government system at a critical moment in the country's history. Making such a contribution was the first objective of this study. Scholarly studies of decentralization or the local governance are uncommon. The second objective of this study is to present the situation of local government in a country like Yemen (Sana's as a case study) faces political conflict and crisis environments. These two objective have been achieved through the descriptive mode. Even though decentralization is being carried out, the main findings of this research are that Sana'a city government remains a mix of decentralized and de-concentrated entities, with duplication common. There is conflict of responsibilities among the governorate office, mayor office and 10 independent District or (moderiates) offices.
https://bfemu.journals.ekb.eg/article_201199_2cde5ef2e3242be4a8f35657bf6b8922.pdf
2021-03-01
1
14
10.21608/bfemu.2021.201199
Urban Management
government
Governance
Sana'a
Yemen
Al-Abed
Abdullah
1
Associate Professor., Department of Architecture., Faculty of Engineering., Sana'a University., Yemen
LEAD_AUTHOR
ORIGINAL_ARTICLE
Re-Discovering the Lost Traditional Public Space: The Case Study of Tahrir Square (Sana'a).
City planners are faced with challenges of creating. outdoor environments as collective unifying frame work for new development. The usual process of urban development treats buildings as isolated objects sited in the landscape not as part of the larger fabric of the city. Each element is the responsibility of a different public or private organization and unity of the total environment is lost. Various development projects as in the case of Tahrer Square (TS) are by and large put together separately with out on overriding plan for public space. The result is ill-defined spaces or to say lost spaces. These spaces are patchwork quilt of private buildings and public spaces usually severed from a historical context. To shed light upon the problem of lost space , this paper takes (TS) in Sana'a city as a Case study . it investigates (TS) urban development phases . it also presents ( TS ) existing physical setting. The utility of the study lies study lies in the formulation of revitalization policy for the urban historical centers
https://bfemu.journals.ekb.eg/article_119201_c9ccd2a354cbd4164f0fe3d1d6379e7d.pdf
2020-10-17
15
26
10.21608/bfemu.2020.119201
Abdullah
Al-Abed
dr_alabed92@yahoo.com
1
Associate Professor at Architectural Department., Faculty of Engineering., Sana'a University., Sana'a., Yemen.
LEAD_AUTHOR
ORIGINAL_ARTICLE
Housing Supply vs. Affordability: Who can afford the Private Housing Schemes in Aden (Yemen)?.
Since the early 1990s, the housing affordability issue has been the main concern of the majority of the urban sector in Aden . The urban sector before unification were benefited from the welfare housing system and paid only nominal rents . They were unaccustomed to home purchase . After unification in 1990 . however , the government decided to terminate the previous welfare housing allocation system . Housing supply , therefore was dominated by the private sector . The urban sector was forced to enter the market for housing service provision . There is a changing housing price-to-income ratio ( PIR ) since 1990 . The rapid increase of house prices has eroded the capability for homeownership . As a result , affordable private housing have experienced higher demand pressure . Without additional residential supply , demand will pull the price up and , therefore , reduce the amount of affordable accommodation . This paper will discuss : The current housing situation regarding housing policy evolution in Aden . Housing affordability definition and housing affordability barriers by reference to current literature. A model of housing affordability will be set to examine the affordability of housing schemes provided by private housing developers In this paper , it is not attempted to present a prescription for problem remedy . Nonetheless, identification and developing under standing of the affordable informing policy and practice
https://bfemu.journals.ekb.eg/article_119183_199f485afa3175e15294a78220f16cd7.pdf
2020-10-17
27
35
10.21608/bfemu.2020.119183
Housing supply
housing affordability
housing policy . Private housing developers
Abdullah
Al-Abed
1
Associate Professor., Architectural Engineering Department., Faculty of Engineering., Sana'a University., Sana'a (Yemen)
LEAD_AUTHOR
ORIGINAL_ARTICLE
The Human House in the 3rd Millennium.
Human house achieves various human needs ( natural, spiritual , social , cultural and economic ) and the Islamic religion respect human aspects , reflecting on the achievement of the Islamic architecture of human needs so it did not deal with the house as a machine but as the achievement of occupants rest besides beauty . The researches that study architecture in Egypt in the era of globalization has concluded the necessity of attention to architectural heritage because it is the key to maintaining identity in the face of globalization , and the need to search for design values in the Architectural Heritage Searching for values in the Architectural Heritage is not by re-drawing the same visual architectural image , so the research will analyze the human needs achieved by housing in the Islamic period in Egypt and how to achieve them in the home of the third millennium .
https://bfemu.journals.ekb.eg/article_119373_cf6c39490e80d510ef146909cde4e700.pdf
2021-03-01
36
45
10.21608/bfemu.2012.119373
Rania
Ghanam
1
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., Kafr Alsheekh University.
LEAD_AUTHOR
Mohamed
Al-Azab
2
Professor of Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
Alaa
El-Eishy
3
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
ORIGINAL_ARTICLE
Towards Sustainability-based Methodology for Healthcare Buildings Design in Egypt.
Buildings of healthcare should have requirements and needs of the design particularly stem from the nature of the functions performed by these requirements, this requirements stem from the actual needs of each society, but at the same time can benefit effectively from the experiences of developed countries in this area, both were similar circumstances or different in order to reach the highest performance of the building. In this case, the requirements of indicators are used as a checklist determines which different elements that must be met, and can be relied on studies carried out by some international organization, research and reports of interest in this area as a good source to determine the requirements to be accessible, and in the same context, there are several determinants of help to improve the environmental performance of the building and check adapted to the building with the surrounding environment without damaging the building or the environment with the convenience of individual, Which result in knowledge of the requirements the design and trying each side is interested in developing an ongoing basis. So it will deal to find the performance of global rating systems for sustainable healthcare buildings and also deal with the rating system of Egypt as the local system and clarifying each system and achievement Credit of the system of those parameters in order to access to the determinants of improving the performance of the building in the context of a specific and comprehensive, and then try to gain access to the methodology in the context of the most important credits affecting the performance of the building such as energy, water , emissions, transport, materials and resources.
https://bfemu.journals.ekb.eg/article_119380_fb6d1e57b20a598aafd7d6025aa2f053.pdf
2020-10-18
46
57
10.21608/bfemu.2020.119380
Ahmed
El Deep
1
Instructor., Architectural Engineering Department., Misr Institute for Engineering and Technology., Mansoura.
LEAD_AUTHOR
Sherif
Sheta
shetash11@yahoo.com
2
Associate Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
Wael
Moustafa
3
Assistant Professor., Architectural Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
ORIGINAL_ARTICLE
A Comparative Analysis of the Use of Limestone Dust and Hydrated Lime in Stabilizing Bad Clayey Soil to be used for Road Embankments.
Lime is used in soil–stabilization as a rapid and economic method for improving the strength and the characteristics of clayey soil which used as highways subgrade . Lime is one of the most powerful stabilizing materials which when added to a clayed soil serves to decrease plasticity , reduce water content and increase soil workability of wet clay prior to compaction Two types of lime , limestone dust and hydrated lime are used to improve the properties of the high compressible clayey soil, type A-7-6, which represents the most bad inorganic soil in the AASHTO soil classification system . Results show that both types of lime helps in great improvement of soil properties as plasticity, grain size CBR VALUE (California Bearing Ratio) and unconfined compressive strength Moreover, hydrated lime gives slightly better results than limestone dust but it is more expensive . So, this study encourages the use of limestone dust
https://bfemu.journals.ekb.eg/article_119584_94ebbc2510137b4fa800ad4813e34ce8.pdf
2020-10-19
1
11
10.21608/bfemu.2020.119584
Stabilization
Clayley soil
Highways subgrade
Limestone dust
Hydrated lime
plasticity
and Grain size
Islam
Abo Elnaga
1
Assistant Professor., Civil Engineering Department., Higher Institute of Engineering and Technology., Kafr El-Sheikh Kafr El-Sheikh., Egypt.
LEAD_AUTHOR
ORIGINAL_ARTICLE
Application of Data Collection Technologies in River Catchments (Case Study: Sue River, South Sudan).
Feasibility studies of the big projects playing an important role in the economy of the countries , as it helps in reviewing the strengths , weakness ,opportunities , and threats that effects those projects . In the water sector , the main focus developing countries nowadays is to start study and develop a long-term plan to develop a strategy for the best utilization of the land and water resources . Under this plan , managing water projects is the lack of capacity and information to start a feasibility study of these projects , thus data collection from the project sites is needed the present research paper presents the use of recent technology of data collection and analysis for constructing a multi-purpose dam in the basin of sue River , South Sudan. Feasibility study for constructing this dam requires huge amount of data and information about the site. bathymetric and topographic survey , remote sensing (RS) , digital elevation mode (DEM) AND GEOGRAPHIC INFORMATION SYSTEM (GIS) was integrated in order to collect the required information in a suitable time with accepted accuracy.
https://bfemu.journals.ekb.eg/article_119594_089ee74d3d0413a2819c9a7a388eeb3c.pdf
2020-10-19
29
35
10.21608/bfemu.2020.119594
RS
GIS
DEM
Satelite images
Sue River
South Sudan
A.
Amin
1
Researcher at Hydraulic Research Institute., National Water Research Center., Egypt.
LEAD_AUTHOR
Fahmy
Abdelhaleem
fahmyhri@gmail.com
2
Researcher at Hydraulic Research Institute., National Water Research Center., Egypt.
AUTHOR
K.
Elsayed
3
Agronomist., Ditto.
AUTHOR
ORIGINAL_ARTICLE
Experimental Study of Heat Transfer through a Rotating Heat Exchanger.
This paper presents an experimental study of laminar forced convection heat transfer for hot water flows through annular tube. The test section consisted of two annular spaces the inner of which for the tested hot water while the outer for the cooling water flow. The inner tube of the annulus is rotated with rotational speeds which varied from 350 to 1580 r.p.m. to give rotational Reynolds number in the range (200 ≤ Rew ≤ 1750). The outer tube of the annulus have a constant diameter of 54.5mm but the diameter of inner tube of the annulus is equal to 21, 26.5 and 33.5 mm so as to give diameter ratios of 0.62, 0.487 and 0.386. Hot water flowed axially through the annular space with velocities that ranged from (0.0042 to 0.52m/s), to give axial Reynolds numbers in the range (130 ≤ Re ≤ 2300), to cover the laminar flow regime. The cold water that flowed through the outer annulus was cooled by a refrigerating circuit. In the present work the effects of radius ratio, axial Reynolds number and rotational Reynolds number on the heat transfer were investigated. The results show that. The rate of heat transfer of the rotational annular tubes is higher than that of the stationary one of the same radius ratio and axial Reynolds numbers. An increase of as much as 200% in the heat transfer is observed for annular tube of radius ratio equal to 0.62, Reynolds number of 1951 rotational Reynolds number of 1744 and rotational speed of 1580 r.p.m respectively, a decreases in heat transfer as much as 36% in the heat transfer is reported for annular tube of radius ratio (B) of 0.386, Reynolds number of 1100, and rotational Reynolds number of 205 and rotational speed of 350 r.p.m respectively. Two correlations were established between Nusselt number and axial Reynolds number. Rotational Reynolds number and radius ratio of the annulus for both stationary and rotational annular tubes.
https://bfemu.journals.ekb.eg/article_119817_c96afe67188ee35ba02dde0a933770d4.pdf
2020-10-20
1
12
10.21608/bfemu.2020.119817
Ahmed
Daayah
1
Mechanical Power Engineering
LEAD_AUTHOR
Ahmed
Sultan
aasultan@mans.edu.eg
2
Professor of Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
AUTHOR
L.
Rabee
3
Professor of Mechanical Power Engineering Department., Mansoura University.,Mansoura., Egypt.
AUTHOR
Ali
Elbouz
4
Professor of Mechanical Power Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura.,Egypt.
AUTHOR
ORIGINAL_ARTICLE
Synthesis and Photooxygenation of Angular Furoquinolinone.
Synthesis of 4,8,9-trimethylfuro[2,3-h]quinolin-2(1H)-one as angular furoquinolinone (psoralen analog) was carried out through Williamson reaction of 7-hydroxy-4-methyl-2H-quinolin-2-one with 3 chloro-2-butanone followed by cyclization with polyphosphoric acid (PPA).o- Benzoylhydroxy derivative of quinolinone was prepared through the photooxygenation and Fries rearrangement.
https://bfemu.journals.ekb.eg/article_119918_5be4816f83b42d58772e124449992577.pdf
2020-10-21
1
11
10.21608/bfemu.2020.119918
Furocoumarin
psoralen
Photooxygenation and Fries REARRANGEMENT
Sameh
El_Gogary
samehelgogary@yahoo.com
1
Department of Chemistry, Faculty of Science at (New) Damietta., Mansoura University., Egypt.
LEAD_AUTHOR
Hoda
Hassan
2
Department of Chemistry, Faculty of Science at (New) Damietta, Mansoura University, Egypt
AUTHOR
Mohammad
Mashaly
3
Department of Chemistry, Faculty of Science at (New) Damietta, Mansoura University, Egypt
AUTHOR
ORIGINAL_ARTICLE
Modeling Cost Overrun in Construction Projects Case Based Reasoning Versus Regression Analysis.
https://bfemu.journals.ekb.eg/article_201523_e39c903c4c46595bce0e3ab7945fffe9.pdf
2021-10-10
12
28
10.21608/bfemu.2021.201523
A.
El-Kholy
1
Associate Professor., Civil Engineering Department., Delta Higher Institute of Engineering and Technology, Mansoura, Egypt.
LEAD_AUTHOR