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High Frequency Characteristics Of Ferrite Materials And Applications To Microstrip Circuits
(
Qatar University
, 1999 , Article)
Dispersion behavior of the parameters of microstrip lines printed on ferrite substrate is presented. The characteristic impedance for lines on magnetized ferrite substrates are obtained for partially magnetized substrates ...
Experimental And Modeling Of Friables And Stone Oil Reservoirs Consolidation Using Steel Making Slag
(
Qatar University
, 2001 , Article)
A mathematical model was developed simulating the process of sand production in under downhole stress state. The model was derived based on Mohr-Colomb failure criterion, Darcy equation for radial flow and reservoir stress ...
Repetitive Control Based Pwm Inverter Dead-Time Compensation For Ac Servo Drive
(
Qatar University
, 2002 , Article)
AC servomotor speed or current controller based on PI control and/or optimal control, can not eliminate the cyclical fluctuations of speed or current when subject to periodic disturbances. However, repetitive control ...
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 ...
Application Of Neural Generated Error Signal In Classification And Compression Of Ecg Beats
(
Qatar University
, 2002 , Article)
This paper presents a neural network architecture connected in cascade for ECG Holter system beat classification and compression. The system works in real time, on line, and is capable of recognizing and compressing up to ...
Some Misconceptions About Plastic Degradation
(
Qatar University
, 1999 , Article)
In consistence with the importance of implementing best utilization of human resources towards maintaining suitable healthy environment for our next generations, concepts and fundamentals upon which most researches on ...
LQRr Real-Time Control For Plants With Variable Parameters
(
Qatar University
, 2002 , Article)
This paper deals with real-time optimal LQR control of plants that experience sudden changes in their parameters and states. The technique is based on real-time LQR control problem. Riccati equation is solved recursively ...
Performance Evaluation Of Biped Robot Optimal Gait Based On Genetic Algorithm
(
Qatar University
, 2001 , Article)
A Genetic Algorithm (GA) gait synthesis method for walking biped robots is considered in this paper. The walking occupy most of the time during the task performance, therefore its gait is analyzed based on the minimum ...
The Effect Of Initial Temperature On Burning Velocity Of Methane, Propane, Lpg And Iso Butane - Air Mixtures
(
Qatar University
, 2001 , Article)
In present work, the burning velocity of a fuel - air mixtures varies with equivalence ratio, temperature and number of carbon atoms. Laminar flame speed have been measured experimentally inside a tube using the optical ...
The Significance Of Permeability And Wettability Contrasts On Near Wellbore Flow Patterns Creating Formation Damage Effects
(
Qatar University
, 1999 , Article)
The majority of hydrocarbon reservoirs are heterogeneous and any geological model that is unable to represent these heterogeneities will not capture the correct displacement physics. In particular, difficulties are encountered ...