Now showing items 150-169 of 221

    • Performance Evaluation Of Biped Robot Optimal Gait Based On Genetic Algorithm 

      Capi, G.; Nasu, Y.; Barolli, L.; Mitobe, K.; Yamano, M.; ... more authors ( Qatar University , 2001 , Article)
      A Genetic Algorithm (GA) gait synthesis method for walking biped robots is considered in this paper. The walking occupy most of the time during the task performance, therefore its gait is analyzed based on the minimum ...
    • Performance Evaluation Of Water Distribution Network Using Computer Model Simulation 

      Ahmed, S; Preston, Stephen ( Qatar University , 1995 , Article)
      The paper describes the water supply system in Doha. It discusses the methodology used in estimating the water demand for each node of the water distribution network in the Garrafa District of Doha. A computer model of the ...
    • Performance Of A Cool Thermal Store Filled With Balls Containing Water 

      Hariri, Abdulrahman Salih ( Qatar University , 2001 , Article)
      A cool thermal storage (CTS) system can be integrated with an A/C system in order to reduce power consumption during a period of high demand. Investigator conducted experiments to investigate the performance of a CTS during ...
    • Performance of Greenhouses in The Arabian Gulf 

      Hassab, M.A.; Tag, I.A. ( Qatar University , 1990 , Article)
      This work is devoted to the gaining of insight into the operation of environmentally controlled greenhouse in hot and humid climates. Field data inside and outside the greenhouse, namely: solar radiation, dry and wet bulb ...
    • 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 ...
    • Pollution Analysis and Control in Petroleum Refineries 

      Salem, A. B. ( Qatar University , 1990 , Article)
      Air, liquid and noise emissions from different equipment in petroleum refineries have been analyzed. Most data have been correlated or tabulated in order to make possible using them in estimating the impact of the different ...
    • The Potential of The Co-Rotating Compressor in Gas Turbine Applications 

      Okelah, M.R.S. ( Qatar University , 1988 , Article)
      The concept of co-rotating axial compressor was conceived primarily as a means of overcoming the inherent rotational speed mismatch between a fan and its driving turbine in moderate to high bypass ratio turbo-fan engines. ...
    • Potential Use Of Carbide Lime Waste As An Alternative Material To Conventional Hydrated Lime Of Cement-Lime Mortars 

      Al Khaja, Waheeb A. ( Qatar University , 1992 , Article)
      The present study aimed at the possibility of using the carbide lime waste as an alternative material to the conventional lime used for cement-lime mortar. The waste is a by-product obtained in the generation of acetylene ...
    • 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 ...
    • Prediction Of Refrigerant Thermodynamic Properties By Equations Of State 

      Moshfeghian, Mahmood Moshfeghian, Mahmood ( Qatar University , 1992 , Article)
      The ability of three equations of state (EOS) for calculating the thermodynamic properties of refrigerants has been studied for 35 pure component refrigerants. Three equations of state studied were the Soave-Redlich-Kwong ...
    • Prediction Of Reinforced Concrete Beam Depth Using Neural Networks 

      Senouci, Ahmed B.; Abdul-Salam, M. Ayman ( Qatar University , 1998 , Article)
      This paper discusses the development and the implementation of a neural network for the depth prediction of singly-reinforced rectangular concrete beams. The procedure of the American Concrete Institute (ACI-318 1995) ...
    • Preliminary Design Of Reinforced Concrete Beams Using Neural Networks 

      Senouci, Ahmed B. ( Qatar University , 2000 , Article)
      This paper presents a backpropagation neural network model for the preliminary design of rectangular concrete beams. The model, which is developed based on the strength design procedure of the American Concrete Institute ...
    • Productivity And Economical Feasibility Of Multi Lateral Wells In Comparison Of A Horizontal Well 

      El Sayed, Abdel Alim H.; Al-Awad, M. N.; Al-Blehed, M. S.; Al-Saddiqui, M. A. ( Qatar University , 2000 , Article)
      This paper presents an economical model developed for assessing the feasibility of drilling multi lateral holes for exploiting oil reservoirs. Detailed equations are given for calculating the cost, return on investment and ...
    • Properties Of The Omani Sarooj 

      Hago, Abdel Wahid; Al-Rawas, Amer ( Qatar University , 1997 , Article)
      The fundamental properties of the Omani sarooj have been studied. Sarooj samples were collected from different sites to assess their pozzolanic activity. A laboratory testing program covering chemical and physical ...
    • 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 ...
    • Qualitative And Quantitative Assessment Of Drained Water From Urban Ground-Water 

      Al Hajri, Mohd. M.; Shadid, Fawzi T.; Al-Hajri, Khalid; Ahmed, Shamim ( Qatar University , 1992 , Article)
      Although the groundwater table in the State of Qatar peninsula is reducing, there is a persistent increasing level of groundwater in some areas in Doha city. This increasing tendency could be attributed to the topography ...
    • Qualitative Assessment Of Bottled Water In The Middle East 

      Ahmad, S; Saleem, Abdul ( Qatar University , 1996 , Article)
      Many brands of bottled water are being produced in the Middle East including the Gulf Cooperation Council (GCC) countries. Over fourteen brands of bottled water could be found in the market of Doha. Use of bottled water ...
    • Rainfall Characterization In An Arid Area 

      Bazaraa, A. S.; Ahmed, Shamim ( Qatar University , 1991 , Article)
      The objective of this work is to characterize the rainfall in Doha which lies in an arid region. The rainfall data included daily rainfall depth since 1962 and the hyetographs of the individual storms since 1976. The ...
    • Random Distributed Algorithms For Clock Synchronization 

      Nakai, Shoichiro ( Qatar University , 1992 , Article)
      This paper proposes clock synchronization algorithms based on the idea in which randomly chosen m out of the total N processors cooperate to perform the clock adjustment of all processors in a distributed system. Selection ...
    • Recent Advances In Coring And Core Analysis Technology New Technique To Improve Reservoir Evaluation 

      Al Saddique, M.A; Hamada, G. M.; Al-Awad, M. N. ( Qatar University , 2000 , Article)
      The main goal of core analysis is to reduce uncertainty in reservoir evaluation by providing data representative of the reservoir at in situ conditions. Basic core analysis measurements are unchanged, but advances in core ...