Browsing Engineering Journal of Qatar University - [From 1988 TO 2005] by Title
Now showing items 62-81 of 221
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Economic And Thermal Performance Of Thermostone In Qatar
( Qatar University , 1996 , Article)This paper is concerned with the performance characteristics of thermostone as a building material, and their comparison with those of hollow concrete blocks. Carrier Advanced Load Program (E20-II) was used to estimate the ... -
Educational Performance of Students In A New College Of Engineering: A Computer-Aided Study
( Qatar University , 1989 , Article)A data-base computer package is herein developed to provide an effective tool lor llie studv. evaluation and rectification of tile academic performance of university students. As a test case, the newly established Faculty ... -
Effect Of Aspect Ratio On Torsional Capacity Of High-Strength Plain Concrete Deep Beams
( Qatar University , 1993 , Article)Twenty high-strength plain concrete deep beams were tested under torsion. The variables were concrete strength and depth/width (aspect) ratio. Concrete strengths of 51.01, 58.53, 76.60 and 83.66 MPa and depth/width (aspect) ... -
Effect Of Drilling Fluids Contaminations On Saudi Reservoir Rock Wettability
( Qatar University , 1998 , Article)Wettability is a key parameter that affects the petrophysical properties of reservoir rocks. Mud nitrate during drilling pay zone causes a significant change in rock wettability that will affect the oil production and ... -
Effect Of Field Environmental Exposure Conditions On The Properties Of Hardened Concrete
( 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 ... -
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 ... -
Effect Of Production Induced Stresses On Reservoir Productivity
( Qatar University , 2001 , Article)The importance of permeability sensitivity to the changes in pore pressure drop or effective overburden stress increase has been examined at laboratory using two types of rocks, sandstone and limestone. Whereas the ... -
Effect Of Sand Blasting On Soda Lime Glass Properties
( Qatar University , 2003 , Article)The present work is based on a simulation in laboratory of the erosion of a soda lime glass caused by sand blasting during sandstorms. It deals with the effects of sand blasting duration (from 0 to 60 min) and impact angle ... -
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 ... -
Effect of sulphates in cement (containing 5% pozzolana) and in sand on the correlation between compressive strength and u.p.v. of concrete of different mixes
( Qatar University , 1990 , Article)Sulphates may be found in any of the raw materials of cement. Sand contaminated with sulphates is currently a local problem because of the difficulty in obtaining well-graded sand which could be used in concrete that has ... -
Effective Moment Of Inertia And Deflections Of Reinforced Concrete Beams Under Long-Term Loading
( Qatar University , 1995 , Article)The paper presents a method for estimating long-term deflections of reinforced concrete beams by considering creep and shrinkage effects separately. Based on equilibrium and compatibility conditions a method is developed ... -
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 ... -
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 ... -
Electrode Surface Roughness Effect on the Breakdown Characteristics of Compressed Gas Cable
( Qatar University , 1988 , Article)The influence of electrode surface roughness on the breakdown field strength in SFu gas and mixtures is investigated. A coaxial electrode configuration is used to represent a practical gas insulated cable. With the use ... -
Energy Study of A Gas-Fired Turbo-Generator
( Qatar University , 1988 , Article)As far as energy utilization is concerned, the performance of a gas turbine-generator combination, depends on some key factors among which are; engine features, methods of utilizing heat energy associated with exhaust ... -
Estimates of Potential Evapotranspiration Over The State of Qatar
( Qatar University , 1989 , Article)Several methods for the estimation of potential evapotranspiration are reported in the literature covering a wide variation in the complexity of calculation and nature of climatic data required. Five of the more commonly ... -
Evaluation And Improvement Of Traffic Flow Patterns In Urban Centers
( 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 ... -
Evaluation Of Corrosion Resistance Of A Duplex Stainless Steel "Ferralium" In Dead Sea Brine
( Qatar University , 1992 , Article)Corrosion behavior of Ferralium Alloy 255 during service in the environment of concentrated Dead Sea brine has been investigated. It was found that, the corrosion attack is intergranular and exists only in the weld heat ... -
An Evaluation Of The Explicit Fuzzy Method Using Parametric And Non-Parametric Approaches For Supervised Classification Of Multispectral Remote Sensing Data
( Qatar University , 2001 , Article)Fuzzy Classification is of great interest because of its capacity to provide more useful information for Geographic Information Systems. This paper describes an Explicit Fuzzy Supervised Classification method, which consists ... -
Examination Of An Oil Separator Pressure Vessel (Case History)
( Qatar University , 1991 , Article)