Engineering Journal of Qatar University - [From 1988 TO 2005]: المرسلات الحديثة
السجلات المعروضة 21 -- 40 من 221
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Thermal and catalytic cracking of petroleum residue oil
( Qatar University , 2005 , Article)Thermal and catalytic cracking over synthesized nickel-molybdenum supported on aluminum borate (NiMo/AB) catalysts were studied. A series of aluminum borate supports with various aluminum borate (A/B) weight ratios were ... -
Pollution Analysis and Control in Petroleum Refineries
( 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 ... -
Chebyshev Expansion Of The Flow In A Spinning And Coning Cylinder
( Qatar University , 1994 , Article)This paper is concerned with the calculation of the moments exerted by a viscous fluid on the walls of a cylinder that is spinning about its axis and coning about an axis that passes through its center of mass. For small ... -
A Solar Pond For Air Conditioning A Small Family House In Qatar
( Qatar University , 1992 , Article)The concept of using a solar pond to provide air conditioning for a typical small family Qatari house is developed. Though the idea seems appealing for a number of reasons, the design study shows it to he technically ... -
Application Of Neural Generated Error Signal In Classification And Compression Of Ecg Beats
( Qatar University , 2002 , Article)This paper presents a neural network architecture connected in cascade for ECG Holter system beat classification and compression. The system works in real time, on line, and is capable of recognizing and compressing up to ... -
A Case Study Of Traffic Characteristics And Proposed Improvement Schemes For An Arterial Road
( Qatar University , 1993 , Article)This case study represents a typical example of surveying and assessing traffic characteristics along a local ring road in Doha City. Expected impacts of possible short-term (5-year) traffic management schemes for two main ... -
Effects of acid smut production on Design of industrial chimneys
( Qatar University , 1990 , Article)Atmospheric, mechanical and chemical kinds of attacks on industrial chimneys constructed of brickwork, concrete and steel are discussed. Acid smut production in chimneys is described. Two of the factors, widely regarded ... -
Some Misconceptions About Plastic Degradation
( Qatar University , 1999 , Article)In consistence with the importance of implementing best utilization of human resources towards maintaining suitable healthy environment for our next generations, concepts and fundamentals upon which most researches on ... -
Onset of Convection in a Liquid Film Flowing
( Qatar University , 1990 , Article)The thermal instability of a vicsious liquid film flowing down an inclined plane heated from below is studied analytically. The effects of Biot number at the free surface, the inclination, the Prandtl number and the Reynolds ... -
Rainfall Characterization In An Arid Area
( 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 ... -
LQRr Real-Time Control For Plants With Variable Parameters
( Qatar University , 2002 , Article)This paper deals with real-time optimal LQR control of plants that experience sudden changes in their parameters and states. The technique is based on real-time LQR control problem. Riccati equation is solved recursively ... -
Performance Evaluation Of Biped Robot Optimal Gait Based On Genetic Algorithm
( 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 ... -
The Effect Of Initial Temperature On Burning Velocity Of Methane, Propane, Lpg And Iso Butane - Air Mixtures
( Qatar University , 2001 , Article)In present work, the burning velocity of a fuel - air mixtures varies with equivalence ratio, temperature and number of carbon atoms. Laminar flame speed have been measured experimentally inside a tube using the optical ... -
Ceramics As Materials Of Construction
( Qatar University , 1988 , Article)This paper attempts to review the limitations for using the important ceramics in contact with corrosive media. Different types of ceramics are included. Corrosion properties of ceramics and their electrical properties are ... -
Improved 3d-Fe Computational Method For Magnetostatic Field Problems Using Unconstrained Vector Potential
( Qatar University , 1996 , Article)This paper introduces an improved three dimensional finite-element (3D-FE) computational approach for magnetostatic field problems using unconstrained magnetic vector potential (MVP) formulation in conjunction with hexahedral ... -
Liquid Density Of Pure And Multicomponent Fluids By Scaled-Variable-Reduced-Coordinate (Svrc) Method
( Qatar University , 1995 , Article)The Scaled-Variable-Rcduced-Coordinatc (SVRC) method with a proposed set of mixing rules are applied to calculate the liquid density of several system of liquid mixture and satisfactory results are obtained. The ability ... -
Electrical Conductivity Of Aluminum Reinforced Graphite Electrodes
( Qatar University , 1993 , Article)Composite, disc-like aluminum reinforced graphite electrodes were prepared, and an integrated parametric analysis has been performed to investigate the effect of some processing parameters on the electrical conductivity ... -
Correlation Of Vapor-Liquid Equilibrium Data For Binary Mixtures Containing One Polar Component By The Parameters From Group Contributions Equation Of State
( Qatar University , 1993 , Article)Use of a quadratic mixing rule in the Parameters from Group Contributions Equation of State increases the range of compounds for which vapor-liquid equilibrium behavior can be satisfactorily correlated. This is demonstrated ... -
The Significance Of Permeability And Wettability Contrasts On Near Wellbore Flow Patterns Creating Formation Damage Effects
( Qatar University , 1999 , Article)The majority of hydrocarbon reservoirs are heterogeneous and any geological model that is unable to represent these heterogeneities will not capture the correct displacement physics. In particular, difficulties are encountered ... -
Effect Of Series Resistance On Photovoltaic Properties Of In-Doped Cdte(P) Thin Film Homojunction Structure
( 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 ...
