Engineering Journal of Qatar University - [From 1988 TO 2005]: Recent submissions
Now showing items 181-200 of 221
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Comparison Of Metal Corrosion Inhibition By Gravimetric And Linear Polarization Resistance Methods
( Qatar University , 1992 , Article)Studies were conducted to evaluate the effectiveness of various dosages of the selected silicate and phosphate compounds applied for corrosion inhibition of cast iron, copper, lead, and galvanized steel specimens. The ... -
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 ... -
The Voltage Collapse Problem Based On The Power System Loadability
( Qatar University , 1997 , Article)This paper addresses the problem of voltage instability at which the power system reaches its maximum admissible load. A voltage collapse proximity indicator (VCPI) is derived and its performance is investigated. The VCPI ... -
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 ... -
An Algorithm To Minimize Unused Lengths Of Steel Bars And Sections
( Qatar University , 1995 , Article)The reinforcement steel bars and other metal or wooden sections used in the construction industry are usually available in standard lengths and are cut in large numbers of specified lengths (pieces) according to the needs ... -
How Top-Size Affects The Resilient Modulus Of Roadway Base Materials
( Qatar University , 1995 , Article)The American Association of State Highway and Transportation Officials (AASHTO) uses resilient modulus values as the load-carrying capacity parameter for all pavement materials. However, the maximum sample diameter in ... -
Design Of A Simple Apparatus For Reaction Kinetics And Reactor Design Experiments
( Qatar University , 1990 , Article)Tubular reactor experiments arc an integral part of an undergraduate course in reaction kinetics and reactor design. However, the successful design of such experiments necessitates meeting a set of criteria regarding safety, ... -
Signal Identification Using A Microprocessor Based Phase Locked Loop System
( Qatar University , 1989 , Article)A scheme for waveform comparison and the measurement of periodic signal parameters through processing, controlling and measuring programs is realised. A microcomputer is used with a phase locked loop voltage controlled ... -
Traffic Generation And Parking Demand Of The Qatar International Squash And Tennis Centre
( Qatar University , 1993 , Article)In early 1992 the Government of the State of Qatar decided to construct a new squash and tennis centre. Ministry of Municipal Affairs and Agriculture (MMAA) staff made an assessment of the centre's probable traffic generation ... -
A Self-Organizing Multisensor Fusion Classification Algorithm
( Qatar University , 1996 , Article)A self-organizing multisensor fusion algorithm to classify the inputs (data or images) into classes (targets, backgrounds) is presented. The algorithm forms clusters and is trained without supervision. The clustering is ... -
Investigation of In-Service Parameters Influencing the Wear and Wear Rate for Two Rubbing Surfaces
( Qatar University , 1989 , Article)A study has been conducted on the volumetric wear and wear rate as well as the quality of the surfaces produced by rubbing brass and steel specimens. Effect of end pressure and total sliding distance between the two rubbed ... -
A New Technique To Predict Multilayered Reservoir Characteristics Using Pulse Testing Data
( Qatar University , 1998 , Article)In this study, a mathematical model was developed to present pulse and interference testing for multilayered reservoirs. It was found that apparent storage calculated from pulse testing data is always less than or equal ... -
On The Solution Of The Job-Shop Scheduling Problem Under Fuzzy Environment
( Qatar University , 2002 , Article)This paper presents a solution algorithm for solving the job-shop scheduling problem involving fuzzy parameters in the constraints. It is considered that the processing times are those fuzzy parameters and the maximum ... -
Voltage Stability Margin Identification Using Local Measurements And Linear Kalman Filter
( Qatar University , 2002 , Article)Voltage stability investigation is of a great importance for long-term electric load expansion as well as power system operation. This paper presents a new algorithm for identification of voltage instability in a specified ... -
Three Dimensional Analysis Of Skeletal Structures Considering Cracking
( Qatar University , 1992 , Article)A three dimensional computer model has been developed to analyze space structures containing cracked members. A new stiffness matrix for cracked space members has been obtained. This model takes into consideration crack ... -
Developing Binary Interaction Parameters For Equations Of State
( Qatar University , 1991 , Article)Binary interaction parameters are routinely developed to improve the accuracy of equation of state estimations for binary mixtures. For a given data set, the numerical value of the vapor-liquid equilibrium constant varies ... -
Mathematical Model To Simulate The Surface Runoff For Ubaiyidh Valley In The Western Desert
( Qatar University , 1998 , Article)Water plays an important role in human life and development. The evaluation, planning and management of water resources become important in sustaining human life, specially in arid and semi arid regions. This paper aims ... -
Teaching Structural Steel Design Using Mathcad Program
( Qatar University , 2000 , Article)This paper demonstrates the integration of Mathcad programming in a steel design course at the University of Qatar. It discusses the advantages of Mathcad programming over other programming formats and provides guidelines ... -
Refractivity Statistics For Two Countries In The Middle East
( Qatar University , 1989 , Article)This paper presents and compares the results of refractive index studies for Mersa Matrouh, Egypt, and Doha, Qatar. Statistics for surface refractivity and refractivity gradients at different heights from the surface are ... -
Control of Void Formation During Forging of Advanced Fiber Reinforced Composite Materials
( Qatar University , 1989 , Article)Increased interest has emerged in recent years in the development of fiber reinforced superalloy composite materials and the fabrication processes to produce composite turbine vanes and blades for advanced gas turbine ...
