Engineering Journal of Qatar University - [From 1988 TO 2005]: المرسلات الحديثة

السجلات المعروضة 81 -- 100 من 221

    • Industry Input Into Professional Post-Graduate Studies For The Needs Of Qatar 

      Al Naim, Ibrahim S.; Dawe, Richard A. ( Qatar University , 1999 , Article)
      Qatar's Industry is needing Qatari graduate professionals to lead it Support by industry for higher education for the next generation of professionals should be regarded as an investment in human resources. The College of ...

    • Simulation of Cross-Current Extraction Processes 

      Salem, A. B. ( Qatar University , 1988 , Article)
      Extraction processes dealing with partially miscible solvents are usually calculated by graphical methods to estimate the number of stages required, flow rates and compositions of the streams. Such procedures may be lengthy. ...

    • Evaluation And Improvement Of Traffic Flow Patterns In Urban Centers 

      Salman, H. Y. ( Qatar University , 2003 , Article)
      Presented in this paper is process of evaluation and improvement of traffic flow pattern in urban centers. The process is carried out by applying TRANSYT-7F program. The data was collected from a selected network within ...

    • Effect Of Series Resistance On Photovoltaic Properties Of In-Doped Cdte(P) Thin Film Homojunction Structure 

      Mohamed, Wagah Farman; Shehathah, Ma'an Ahmed ( Qatar University , 2001 , Article)
      The photovoltaic properties of In-doped CdTe(p) thin film homojunction structure have been investigated, specially the effect of the series resistance on the short-circuit current at low and high light intensities has been ...

    • Feasibility Of Wind Energy Utilization In Qatar* 

      Marafia, A-Hamid; Ashour, Hamdy A. ( Qatar University , 2002 , Article)
      This work presents an assessment of the potential and economical feasibility of adopting wind energy as a renewable source of energy in Qatar. An analysis is presented for the long term measured wind speed (1976-1989) at ...

    • Full Scale Performance of Primary Settling Tanks 

      Ahmad, Shamim; Murad, M.; Javed, K. H. ( Qatar University , 1989 , Article)
      The characteristics and the flowrate of municipal wastewater from the city of Doha, located in the Arabian Gulf have been studied to examine their effect on the performance of the primary settling tanks at the local sewage ...

    • Performance Simulation Of Single-Evaporator Domestic Refrigerator Using Alternative Refrigerants 

      Murtadha, T. K.; Hussain, Salam Hadi ( Qatar University , 2003 , Article)
      The search for well-functioning and energy-optimized refrigeration systems has made modeling and simulation of such systems an important tool for the industry in terms of product development. The present study explores how ...

    • Refrigerants Beyond 1995 - An Overview 

      Kamal, W. A. ( Qatar University , 1994 , Article)
      The count down has started. Less than 400 days, that is all the time left till the complete phase-out of CFC production. No more refrigerants R-l 1, R-12 or R-500 will be produced worldwide. With our extreme dependence - ...

    • Creep Buckling Of Plates Under Biaxial Compression 

      Ashour, H. A.; Shaker, Magdy A. ( Qatar University , 1992 , Article)
      This work presents an analysis for the creep buckling problem of geometrically imperfect rectangular flat plates under biaxial compression with simple support boundary conditions. The analysis is based on a non-dimensional ...

    • The Behavior Of Molasses As A Microbial Nutrient In The Absence Of Microbes 

      Khairy, M.; Al-Awad, Musaed N.; Al-Saddique, Mohammed; Al-Misned, Omar A.; Shebl, M. ( Qatar University , 2000 , Article)
      In this work the effect of molasses, as a bacterial nutrient, on the pH and surface tension of the aqueous phase, IFT, and phase behavior after one week contact time was studied at 60°C. The results have shown that the pH ...

    • Effect Of Field Environmental Exposure Conditions On The Properties Of Hardened Concrete 

      Al Khaja, Waheeb A.; Al-Bastaki, N. M.; El-Haddad, M. H.; Mohamed, A. S.; Padmore, P. ( Qatar University , 1993 , Article)
      The effects of harsh field environmental exposure conditions on compressive, tensile and flexural strengths and durability aspects of concrete such as chloride penetration, sulphate attack and carbonation were investigated ...

    • Comparing The Elastic Constants Of Porous Titanium Compacts With Theoretically Predicted Values 

      Al Amri, Ali M. S. ( Qatar University , 1998 , Article)
      Some elastic properties of green and sintered titanium compacts were experimentally measured. The results were compared with the theoretical predictions based on Mackenzie's and Walton's models. It was concluded that the ...

    • Concrete Pavement Truck Equivalence Factors For Upgrades 

      Razouki, Sabah Said; Mohee, Sakvan Omer ( Qatar University , 1999 , Article)
      Presented in this paper are the upgrade truck equivalence factors for single unit trucks of type, 1.2 and 1.22 which are not covered by AASHTO. The equivalency factors for front and rear axles of single unit trucks were ...

    • Design Of An E-Mail System For Personal Computers 

      El Hadidi, M. T.; Mohammad, Sultan A.; Metwally, Mostafa S. ( Qatar University , 1991 , Article)
      The design of an Electronic-Mail system that can operate in a personal computer (PC) environment is presented. The underlying philosophy is based on a centralized mailbox approach, wherein a dedicated SERVER stores the ...

    • Predict The Properties Of Aqueous Mixed Electrolyte Solutions From Properties Of The Individual Electrolyte Solution 

      Nasrifar, Kh.; Ayatollahi, Sh.; Moshfeghian, M. ( Qatar University , 2003 , Article)
      For calculating the thermodynamic properties of mixed electrolyte solutions, a thermodynamic framework is developed. The vapor pressure, density and osmotic coefficient of several mixed electrolyte solutions are predicted ...

    • On The Solution Of The Job-Shop Scheduling Problem Under Fuzzy Environment 

      Saad, Omar M. [عمر محمد سعد]; Abass, Samir A. ( Qatar University , 2002 , Article)
      This paper presents a solution algorithm for solving the job-shop scheduling problem involving fuzzy parameters in the constraints. It is considered that the processing times are those fuzzy parameters and the maximum ...

    • Calcium Nitrite Effect On Setting Of Cement At Various Temperatures 

      Alshamsi, Abdullah M.; Bushlaibi, Ahmed H. ( Qatar University , 2000 , Article)
      Calcium Nitrite, which is used as corrosion inhibitor, accelerates stiffening rates of cement. This paper deals with the effect of calcium nitrate on setting times of cement pastes at various curing temperatures. Four ...

    • Structure Mixture Response Of Buildings Due To Simulated Earthquake Loading 

      Al Ansari, Mohammed S.; Senouci, Ahmed B. ( Qatar University , 2002 , Article)
      This paper presents two case studies to evaluate the performance of the structure mixture theory in the earthquake response analysis of buildings. In the first case study, the actual earthquake responses of the two-story ...

    • Pyrolysis Kinetics of Oil-Palm Solid Waste 

      Mohd Din, Azam T.; Hameed, Bassim H.; Ahmad, Abdul Latif ( Qatar University , 2005 , Article)
      Pyrolysis of oil-palm shells, a cheap and abundantly available solid waste from palm oil producing process, was carried out using thermogravimetric analysis. The effect of heating rates (10,15,20 and 25°C/min) on the kinetic ...

    • Heuristic analysis of brackishwater treatment by reverse osmosis process 

      Ahmed, S ( Qatar University , 1990 , Article)
      Treatment of brackish water and sea water with the help of reverse osmosis process is feasible and a viable solution to meet the fresh water deficiency in an arid region. Total dissolved solids can be reduced to a level ...