Engineering Journal of Qatar University - [From 1988 TO 2005]: Recent submissions
Now showing items 161-180 of 221
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Computation Of Normal Depth In Open Channels
( Qatar University , 1998 , Article)Fixed-point iteration is an efficient technique for manual and machine calculation of normal depth. The method is applied to the solution of Manning's equation for two basic uniform flow problems in trapezoidal and circular ... -
Current-Mode Neural Networks For Solving Nonlinear Programming Problems
( Qatar University , 2000 , Article)In this paper, neural networks for online solution of linear and nonlinear programming problems are presented. Current mode circuits are used in the design of networks. Transimpedance techniques based current conveyors are ... -
Solubility and Tie Line Data for The System Sea Water - Xylene - n - Butanol
( Qatar University , 1989 , Article)Ternary equilibrium data for the system Sea Water - Xylene-n-Butanol were determined at 23°C. The maximum solubility of n-Butanol in sea water was found to be 4.763% at room temperature. Xylene was found to be practically ... -
Cascaded Coding Schemes For Public-Key Cryptography
( Qatar University , 1995 , Article)1976 Diffic and Hellman introduced the concept of public-key cryptography and in 1978, McEliece introduced the first public-key cryptosystem based on error correcting codes. Since that time, several methods have been ... -
Humidification - Dehumidification Desalination Process Using Waste Heat from A Gas Turbine By
( Qatar University , 1989 , Article)This paper presents a hutnidification-dehumidification desalination process using waste heat from a gas turbine power plant. In this process, the air is used as the operating fluid instead of water. The process has many ... -
Genetic Algorithm Optimal Model For Slab Formwork Cost And Design
( Qatar University , 2000 , Article)This paper introduces Genetic Algorithms technique to find an optimum formwork design, using optimum section of joists, stringers and shores along with their spacing, and satisfying minimum cost. Genetic Algorithms technique ... -
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 ... -
Soil Classification Decision Support System Using An Expert System Approach
( Qatar University , 1998 , Article)Soil classification systems are necessary for the identification of soil properties. Expert systems can be a very powerful tool in identifying soils quickly and accurately. In this paper, an interactive and user-friendly ... -
The Diffusion Diaphragm Cell: A State-Of-The-Art-Review
( Qatar University , 1990 , Article)The diffusion diaphragm cell is considered one of the simplest and most reliable devices for measuring liquid-phase diffusivities. The design of such diaphragm cells has passed through many stages of refinement over the ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Investigation of the Fouling Mechanisms in the Heat Exchangers of a Hydrotreater
( Qatar University , 2005 , Article)The problem of fouling on heat exchanger surfaces has been one of the major unresolved problems of the hydrotreatment unit at the Homs oil refinery in Syria. In this unit, a feed stream of straight-run naphtha is preheated ... -
Secondary vs. Tertiary oil recovery from a two-dimensional porous media by microemulsion flooding
( Qatar University , 1989 , Article)The objective of this research was to study the application of microemulsion flooding in a visual, two-dimensional sandpack for the purpose of investigating the efficiency of oil displacement during secondary and tertiary ... -
Frame Synchronization In Ofdm Systems Using Neural Networks, With Dsp Implementation
( Qatar University , 2002 , Article)This paper presents a method for estimation of the timing offset in OFDM (Orthogonal Frequency Division Multiplexing) systems. The author showed that it is possible to detect the start of the OFDM blocks without the use ... -
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, ...
