Engineering Journal of Qatar University - [From 1988 TO 2005]: المرسلات الحديثة
السجلات المعروضة 41 -- 60 من 221
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A Parametric Study On Transportation Problem Under Fuzzy Environment
( Qatar University , 2002 , Article)This paper presents a solution algorithm for solving the transportation problem having fuzz) parameters in the constraints. A parametric studv is carried out For this problem. Some basic stability notions are defined and ... -
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 ... -
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 ... -
Numerical Study Of Magneto-Fluid-Mechanics Forced Convection Pipe Flow
( Qatar University , 1994 , Article)The problem of fully developed, laminar, steady, forced convection heat transfer in an electrically conducting fluid flowing in an electrically insulated, horizontal, circular pipe (whose wall is subjected to a uniform ... -
Calculating the Velocity of Sound in Real Pure Component Gases and Mixtures of Real Gases
( Qatar University , 1989 , Article) -
Correlations Of Some Tensile Properties For Various Grades Of Low Density Polyethylene
( Qatar University , 1994 , Article)The tensile properties of nine different grades of low density polyethylene were measured, and the relationships resulting from the combination of different pairs of properties were analyzed. It was found that some properties ... -
Recent Advances In Coring And Core Analysis Technology New Technique To Improve Reservoir Evaluation
( 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 ... -
Performance of Greenhouses in The Arabian Gulf
( 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 ... -
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 ... -
Qualitative And Quantitative Assessment Of Drained Water From Urban Ground-Water
( 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 ... -
Flow Routing Calculations For Water Resources Management Using Spreadsheets
( Qatar University , 1999 , Article)Flow routing calculations are very important for water resources engineers for analyzing and designing water engineering systems such as reservoirs, stocmwater conduits and detention ponds, spillways, pumping stations, ... -
Software For On-Line Monitoring Of E10-B Telephone Exchange
( Qatar University , 1991 , Article)The proposed software aims at enhancing the monitoring of the E10-B telephone exchange. It combines functions normally performed by two dedicated hardware devices and facilitates access to detailed maintenance information ... -
A Review Of Petroleum Engineering Aspects Of Qatar's Oil And Gas
( Qatar University , 1998 , Article)This paper reviews, from a petroleum engineering point of view, the 60 years of discovery and development of tlie oil and gas resources within the boundaries of the State of Qatar. Up to 1990 there were four major hydrocarbon ... -
Influence of Surface Finish on Fatigue Life of Steel Specimens Subjected to Pure Bending
( Qatar University , 1990 , Article)It has long been appreciated that surface conditions exert significant influence on fatigue behavior. The new capabilities of identifying and measuring surface parameters together with the significant development in data ... -
Selection Of Optimized Fuzzy Rules For Process Control Systems: Using Genetic Algorithms
( Qatar University , 1996 , Article)In this paper modeling, selection and optimization of fuzzy rules for multivariable feedback process control and decision making systems are developed and discussed. A general model for multivariable fuzzy rules is derived ... -
Concrete Deterioration And Repair In An Industrial Environment
( Qatar University , 1994 , Article)This case study is concerned with concrete deterioration and its repair in an Industrial Plant (Qatar Petrochemical Company). Three different cases are identified according to the type and the environment of the structural ... -
A novel push-pull machine for testing High cycle fatigue
( Qatar University , 1990 , Article)A novel machine designed and constructed to exert cyclic axial load for fatigue testing is herein reported. The main features of the test rig constitute the sinusoidal form of load wave and the stress - controlled, system ... -
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 ... -
Ultrasonic Characterization, Tensile Testing And Thermal Properties Of Y Irradiated Low Density Polyethylene, Fb 5005
( Qatar University , 1997 , Article)Ultrasonic pulse-echo technique, tensile testing and thermal gravimetric analysis have been utilised to characterise and monitor the effect of y irradiation on the physicomechanical properties of low density polyethylene ... -
A Neural Controller Using Imc Strategy
( Qatar University , 2000 , Article)In this paper a nonlinear Internal Model Control (IMC) strategy based on a modified NARMA model is proposed. The IMC controller consists of a model inverse controller and a robustness filter with a single tuning parameter. ...
