Engineering Journal of Qatar University - [From 1988 TO 2005]: المرسلات الحديثة
السجلات المعروضة 201 -- 220 من 221
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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 ... -
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 ... -
Hot Ductility Of Directly Cast Steels With Different Carbon Contents
( Qatar University , 1995 , Article)Tensile samples of Nb containing steels with different carbon contents have been cast in situ, cooled to test temperatures in the range 800-1000 °C and tested at a strain rate of 3x10 s . The austenite grain sizes of the ... -
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 ... -
Assessment Of Blending Local And Imported Aggregates On Properties Of Their Asphalt Concrete Mixtures
( Qatar University , 1995 , Article)Environmental conditions in the State of Qatar together with lack of good-quality aggregates seem to severely reduce the service lives of constructed pavements. The current practice of road construction agencies in Qatar ... -
Computer Simulation Of Gas Treating Unit And Comparison With Plant Data
( Qatar University , 1998 , Article)Predicting the performance of an industrial plant using computer simulation is becoming a common practice. Confirming the effectiveness of computer packages is not so common. The Shahid Hasheminejad Gas Treating Unit (GTU) ... -
Ultrasonic C-Scan Inspection Of Composite Materials
( Qatar University , 1992 , Article)Ultrasonic technique using an automated C-scan has been established as the primary inspection method for composite materials. In this paper, the principles of ultrasonic inspection, the type of defects that may be generated ... -
A Computer - Aided Experimental Setup For Studying Sorption And Desorption Kinetics
( Qatar University , 1990 , Article)The details of a computer-aided experimental setup are reported in this communication. This set-up produces high-quality data which can be utilized in stuying sorption and desorption kinetics. -
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 ... -
Simulation Of Three-Phase Distillation Column Using Bubble Point And Φ-Φ Approach
( Qatar University , 1995 , Article)Most of organic compounds are partially miscible in water and due to their solubility criteria split into two liquid phases. So design of equipments that separate two liquid phase systems differ from one liquid phase system ... -
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 ... -
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 ... -
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 ... -
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 ... -
Computer Aids To Analysis Of Semi -Rigid Steel Space Frames
( Qatar University , 2000 , Article)This work describes the recent development of the semi-rigid connection technique and the application of this method to the analysis of space frame structure. To carry out the above method of analysis accurately and ... -
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 ... -
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 ... -
Solidification Of Steel Billets In Continuous Casting
( Qatar University , 1991 , Article)For practical operation, it is necessary to know how the solidification of liquid steel progresses i.e. when and where a strand has completely solidified. Decisions on, the casting speed, the spray water flow rates and ... -
Performance Evaluation Of A Msf Desalination Plant In Qatar
( Qatar University , 1992 , Article)In this paper, an assessment of the performance of one of the multistage flash (MSF) desalination units operating in conjunction with the gas-turbine cogenera-tion power plant in Qatar is carried out under different operating ...
