Ahmed Fouda, Ahmed Shalaby and Mootaz Farid
The real estate development processes involves complex sets of decisions that are related to both technical and financial issues. Some of these decisions could be made…
Abstract
The real estate development processes involves complex sets of decisions that are related to both technical and financial issues. Some of these decisions could be made simultaneously where the others would be made sequentially. Sequential decisions, especially at early stages of the process, are the most critical for the success of any project. Reliable information at early stages is hard to be found, which makes these decisions rather risky. Budget overruns is also a real risk, which usually appears at last stages of developments especially at tender phase.
Developers apply cost saving and/or value engineering / management exercises to reduce the expected cost in order to re-meet the budget again. Value management is preferred since it maintains the same planned quality, provides needed functions and reduces cost. Some of developers succeed where the others are obliged to cancel their developments after wasting a lot of time and money.
In order to mitigate some of those risks, enhance development process and optimize the product, developers need to apply a systematic approach in the form of a Heuristic Model as a pro-active tool to assist them performing better. The main objective of this research is to re-utilize the core principle of the value management, which is eliminating unnecessary functions and costs in order to develop this model. Thus, a descriptive analytical approach was applied as a methodology for doing the targeted synchronization and integration between the value management tools and techniques within the real estate development process. The heuristic model proposed a certain order of the development process and selected tools and techniques to achieve the value management philosophy. It is designed to be strategic and flexible in order to guide the developers to create their own model according to their vision and surrounded circumstances.
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A.S. Fouda, S.S Elkaabi and A.K. Mohamed
The inhibitive effect of some substituted phenyl n‐phenylcarbamates on corrosion of iron in 2N HCI have been studied using gaivanostatic polarization measurement. Studies carried…
Abstract
The inhibitive effect of some substituted phenyl n‐phenylcarbamates on corrosion of iron in 2N HCI have been studied using gaivanostatic polarization measurement. Studies carried out with different concentrations of the inhibitor indicated that the compounds act as a mixed inhibitor. The results indicate that the additives reduce the corrosion rate by way of adsorption through the oxygen atom of phenoxy group and nitrogen atom of NH group. The inhibitory character of the compounds depends upon the concentration of the inhibitor, as well as its chemical composition. The results of electrocapillary measurements are consistent with the electrochemical measurements. Thermodynamic parameters for absorption of inhibitors have been calculated and discussed.
Ayman Ahmed Ezzat Othman and Nadine Ibrahim Fouda
This paper aims to develop a cultural diversity management (CDM) framework to enhance the performance of architecture design firms (ADFs) in Egypt.
Abstract
Purpose
This paper aims to develop a cultural diversity management (CDM) framework to enhance the performance of architecture design firms (ADFs) in Egypt.
Design/methodology/approach
A research methodology consisting of literature review, case studies and survey questionnaire was designed to achieve the abovementioned aim. First, literature review was used to investigate the concepts of globalization, international construction, diversity, diversity management (DM) and organizational performance. Second, four case studies were presented and analyzed. The first two cases explored the role of CDM towards enhancing the performance of ADFs, while the last two cases showed initiatives carried out by NGOs to integrate architects of color into their communities through training programs that enhanced their skills and uplifted their societies. Third, a survey questionnaire was carried out with a representative sample of ADFs in Egypt to investigate their perception and application of DM towards enhancing organizational performance. Based on the results of the above, the research developed a framework to enhance the performance of ADFs through managing culturally diverse workforces.
Findings
Literature review showed that diversity is not limited to race and gender; however, it includes other types such as disability, socioeconomic status, thinking style, culture, personality, life experience, religious and spiritual beliefs. Despite the benefits that diversity brings to ADFs such as stimulating creativity and increasing productivity, poor management of diverse workforce leads to dysfunctional conflicts, frustration and confusion. Results of case studies showed that ADFs that adopt a CDM approach succeeded in enhancing their performance. In addition, training initiatives carried out by NGOs succeeded to integrate architects of color into their communities and uplifting their societies. Results of data analysis identified the barriers to integrating diverse workforce in ADFs. These barriers include “Poor communication and spirit of collaboration between diverse workforce”, “Resistance to change”, “Lack of maintaining wage equity and promotion between different workforces based on gender”, “Poor organization culture” and “Lack of Senior Management involvement”. This necessitated taking action towards developing a framework to overcome these barriers to manage diverse workforces towards enhancing the performance of ADFs in Egypt.
Research limitations/implications
Because of the conceptual nature of the proposed framework, it has to be tested and validated to ensure its capability to overcome the barriers of managing culturally diverse workforces as an approach for enhancing the performance of ADFs in Egypt.
Practical implications
This research presents a practical solution to enhance the performance of ADFs in Egypt through managing cultural workforce diversity.
Originality/value
The research identified and analyzed the barriers that obstruct the integration of diverse workforces in ADFs. The research tackled a topic that received scant attention in construction literature with particular emphasis on Egypt. In addition, this paper proposed a CDM framework to enhance the performance of ADFs in Egypt, which represents a synthesis that is novel and creative in thought and adds value to the body of knowledge.
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Awad I. Ahmed, S.N. Basahel and R.M. Khalil Chemistry
The inhibitive effect of some morpholine and thiosemicarbazide derivatives on the dissolution of aluminium in 2M HCI has been investigated by using thermometric, weight loss and…
Abstract
The inhibitive effect of some morpholine and thiosemicarbazide derivatives on the dissolution of aluminium in 2M HCI has been investigated by using thermometric, weight loss and hydrogen evolution techniques. The effect of the inhibitors on the protection efficiency and the corrosion rate were determined at various inhibitor concentrations and temperatures. It was observed that the percentage inhibition of aluminium increases with the increase of inhibitor concentration and decreases with rise of reaction temperature. Retardation of dissolution is due to weak adsorption of the additives on the metal surface. The order of inhibition efficiency of the inhibitors used depends on the number of adsorption sites in the molecule, their charge density and molecular size.
M. Abdallah, S.T. Atwa, N.M. Abd‐Allah and A.S. Fouda
The purpose of this paper is to investigate the effects of several azole derivatives on the corrosion inhibition of irradiated and non‐irradiated plain carbon steel in 0.5 M…
Abstract
Purpose
The purpose of this paper is to investigate the effects of several azole derivatives on the corrosion inhibition of irradiated and non‐irradiated plain carbon steel in 0.5 M nitric acid (HNO3) solutions at 30‐60°C and to study the mechanism of their inhibitive action.
Design/methodology/approach
The inhibition efficiency was evaluated by means of weight‐loss determinations and polarization techniques at different temperatures. The type of adsorption isotherm, inhibition efficiency, surface coverage and kinetic data were determined.
Findings
The results showed that azole derivatives inhibit the corrosion of irradiated and non‐irradiated carbon steel in acidic solution. The inhibition efficiency increased with the inhibitor concentration and was greater in the case of irradiated carbon steel than for the non‐irradiated one. Kinetic parameters were calculated. The adsorption of inhibitors obeyed the Temkin Isotherm model. Thermodynamic parameters of activation were calculated in the presence of inhibitors.
Research limitations/implications
Electrochemical studies such as electrochemical impedance spectra will throw more light on the mechanism of inhibition.
Practical implications
Azole derivatives can be used as inhibitors in acid medium and addition of halides can improve their inhibition efficiency.
Originality/value
The investigation revealed the possible application of azole derivatives as environmentally friendly inhibitors for corrosion prevention under specific conditions.
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M.M El‐Tagoury and G.E Bekheit
Cations such as Cu2+, Co2+, Ni2+, Zn2+ or Ba2+ increases the corrosion rate of aluminium in 2 mol.L−1 HCI. This corrosion rate could be decreased by the addition of inhibitors…
Abstract
Cations such as Cu2+, Co2+, Ni2+, Zn2+ or Ba2+ increases the corrosion rate of aluminium in 2 mol.L−1 HCI. This corrosion rate could be decreased by the addition of inhibitors which may form complexes with the cation used. Measurements of the corrosion rate of aluminium in 2 mol.L−1 HCI with and without addition of aliphatic substituted P‐hydroxy acetophenone hydrazone derivatives (10−4 — 10−5 mol.L−1) has been studied by weight loss and galvanostatic polarization methods. The same inhibition efficiency of the compounds has been found using either of the methods. In general, the efficiency of the inhibitors increases with an increase in aliphatic chain length. Activation energies in the presence and in the absence of inhibitors has been evaluated. Galvanostatic polarization data indicate that all these compounds are predominantly cathodic inhibitors. The rate of corrosion increases with increase in temperature together with a decrease in protection efficiency indicating that inhibition occurs through adsorption of the additives.
Awad I. Ahmed and S. Abdel‐Hakam
Corrosion inhibition by some thiourea derivatives of zinc in hydrochloric acid was measured using hydrogen evolution and weight loss techniques. The tested compounds affect the…
Abstract
Corrosion inhibition by some thiourea derivatives of zinc in hydrochloric acid was measured using hydrogen evolution and weight loss techniques. The tested compounds affect the dissolution rate in one of two manners: (a) inhibition throughout all concentrations added and (b) inhibition at lower concentration and acceleration at higher ones. The effect of structural changes in these compounds on their inhibition efficiency has been discussed.
Ola A. Abu Ali, M.M. Elsawy and Ahmed A. El-Henawy
The purpose of this study is to develop a new protective coating formulation for industrial use, using new eco-friendly succinimide linseed oil resin.
Abstract
Purpose
The purpose of this study is to develop a new protective coating formulation for industrial use, using new eco-friendly succinimide linseed oil resin.
Design/methodology/approach
Epoxidized linseed oil and N-(4-hydroxy phenyl) succinimide are reacted to create succinimide-modified epoxy (SIE) compounds. The synthesized compound was confirmed by different analyses, gas chromatography, Fourier transform infrared, proton nuclear magnetic resonance and scanning electron microscopy. The prepared compound has been blended with a primer paint formulation, then their physical and mechanical properties have been studied. Density function theory is used to calculate Frontier molecular orbital including highest occupied molecular orbital and least unoccupied molecular orbital to indicate the charge transfer from molecule to biological media and molecular electrostatic potential map was used to indicate the chemically reactive zone suitable for drug action.
Findings
The results of the paint formulation confirmed their best performance and provided good mechanical properties and high chemical and corrosion resistance.
Research limitations/implications
Resin compounds are the most used antimicrobial additives. Other functionalities of these compounds, such as corrosion inhibitors, might be studied to see if they are suited for these applications.
Practical implications
Because of the efficiency of the SIE when incorporated with primer, paint against microbial has also been examined in silico using the docking study which contributed to the analysis of their protein binding. This type of epoxy compound is environmentally friendly and can be used as a biocide with different paint formulations. As a result, paint compositions including this compound as additives can be used as dual-purpose paint and for a variety of industrial applications.
Originality/value
This research demonstrates how a low-cost paint composition based on synthesized SIE compounds may be used as a dual-function paint for industrial use.
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Tahrir News suggested that the vanished archives related to the 2011 uprising, according to BBC Monitoring. Under President Abdel Fatah el-Sisi, press freedom has decreased, with…
Details
DOI: 10.1108/OXAN-DB230536
ISSN: 2633-304X
Keywords
Geographic
Topical
Yasmine Sabry Hegazi and Mohanad Fouda
The purpose of this paper is to develop strategies of re-imaging the Rosetta historic district through choosing the suitable uses and their specific locations in compliance with…
Abstract
Purpose
The purpose of this paper is to develop strategies of re-imaging the Rosetta historic district through choosing the suitable uses and their specific locations in compliance with the urban design fabric of the historic core. These strategies are to be fulfilled using Space Syntax as an urban analysis tool, in the context of “connectivity analysis.”
Design/methodology/approach
The research methodology follows the combined strategy between three methods of research: a SWOT analysis, to reveal the historic core status; an experimental research approach, which stimulates the chosen area via Space Syntax; and the third is a case study of the Rosetta historic core.
Findings
The re-usage of the Rosetta old core was not originally planned as commercial and to host movable vendors, but the core was forced to adapt afterwards to suit this usage, while the Souk and those big new residential building urban blocks have clearly deformed the historic image of the Rosetta historic core. Moving from one space to another, it was found that well-connected spaces have higher movement density, such as Al Souk Street, while less dense spaces can tolerate more movement without conflicting with highly dense ones. The existing commercial activities can be classified into movable activities – which can be easily relocated – and shop-based, which need a developmental approach in their original locations. The disconnected district can be used as a commercial zone for the movable vendors, to which human flow can be successfully directed in order to reduce the density in the more connected spaces.
Originality/value
The research value lies in exploring how to re-image urban heritage via relocating the places reused with unsuitable activities through Space Syntax.