Browsing Engineering Journal of Qatar University - [From 1988 TO 2005] by Publication Date
Now showing items 1-20 of 221
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Design of Smoke Generator for Flow Visualisation
( Qatar University , 1988 , Article)Described in this paper is an alternative method for smoke generation for flow visualisation in low speed (subsonic) wind tunnel work. This method makes use of the smoke generating characteristics of Ammonia and Sulphur ... -
Designing Air Intake Ducts for High Speed Flight
( Qatar University , 1988 , Article)A proven duct flow model is used to examine the influence of the intake duct geometric and inlet flow parameters on the pressure recovery performance of intake ducts for high speed flight. The geometric parameters include: ... -
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 ... -
Corrosion Failures: Identification, Diagnosis & Remedies
( Qatar University , 1988 , Article)This paper deals with the nature, typical surface features and common forms of corrosion. It also reports corrosion rates in various locations and under differing environmental conditions, viz. tropical, marine, urban and ... -
The Potential of The Co-Rotating Compressor in Gas Turbine Applications
( 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. ... -
Comparison of Recursive Parameter Identification Techniques for Computer Control of Power Systems
( Qatar University , 1988 , Article)This paper outlines the main features of parameter identification in electric power systems. A series of recursive parameter identification techniques is presented, this containing the generalized — and extended least ... -
A Compressive Strength Criterion for Anisotropic Rock Materials
( Qatar University , 1988 , Article)This paper puts forward a general compressive strength criterion for anisotropic rock materials under multiaxial state of stress. The proposed criterion, is a generalization of the Von Mises yield criterion for ductile ... -
Simulation of Cross-Current Extraction Processes
( 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. ... -
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 ... -
Economic Analysis of Corrosion Control In Petroleum Refineries
( Qatar University , 1988 , Article)Economic analysis of corrosion problems and their prevention or control was found to gain very little importance in the last 10 years according to the published work surveyed. This article surveys the most important work ... -
Material Behaviour Under Corrosive Environment — Guide For Material Selection
( Qatar University , 1988 , Article)In this paper, the behaviour of engineering materials as influenced by fluid velocity, operating temperature, humidity and duration of exposure to chemical and/or electro-chemical action is carefully studied, corrosive ... -
Performance Evaluation of A Class of Adaptive Bifurcated Routing Algorithms
( Qatar University , 1988 , Article)With the cost of computation decreasing, packet-switched computer communication networks are becoming increasingly cost effective. In this paper a class of bifurcated routing algorithms is considered. One of the algorithms ... -
On the Design of Bit-Slice Processors
( Qatar University , 1988 , Article)In the past decade, fixed instruction microprocessors have evolved from 4 bits to 32 bits. Their compact design and relative low cost have made them very popular with design engineers. Their use extends into a lot of ... -
Solar Water Pumping — An Analytical Overview
( Qatar University , 1988 , Article)Two basic thermodynamic conversion techniques of solar water pumping are recognized. In the first technique, a high internal energy fluid heated in a solar collector is used to power a conventional heat engine which drives ... -
Laboratory-Scale Tests on Gas-Solid Fluidized Bed Behaviour And Its Influence on Bed Thermal Properties
( Qatar University , 1988 , Article)The success of many industrial processes depends upon good contact between a fluid and particulate solid. A fluidized bed fulfils the requirements for this good contact. This paper presents the results of an experimental ... -
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 ... -
Flow and Fracture Behaviour of Tungsten Fiber Reinforced Superalloy Composites-Effect Of Specimen Geometry
( Qatar University , 1989 , Article)The influence of aspect ratio (i.e. width to height ratio) of test specimens on the flow and fracture behaviour of fiber reinforced composites is herein examined. The composite material was prepared by isostatic pressing ... -
Analysis of A Screen Type Solar Air Collector Without Transparent Cover
( Qatar University , 1989 , Article)The performance of a screen type solar air collector of different uniform mesh sizes and without a glass cover is investigated theoretically. Formulation of simultaneous radiation and convection heat transfer for a semi-steady ... -
A Model Reference Adaptive Control Scheme with External Controllers
( Qatar University , 1989 , Article)A new model reference adaptive control scheme, suitable for linear multivariable discrete time systems, is proposed. A set of parameter adaptation algorithms are developed based on the validity of perfect matching between ... -
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 ...
