Browsing QU Ceased Journals by Title
Now showing items 233-252 of 2240
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A Demodulation Technique For Power System Local Frequency And Voltage Measurements
( Qatar University , 2003 , Article)The demodulation technique of two complex signals is used to estimate the power system local frequency and voltage phasor. The first complex signal is generated from the three-phase voltage waveform by using the ... -
Density and diversity of the desert Arthropoda of Qatar
( Qatar University , 1997 , Article)Density and diversity of arthropods were studied at different habitats of the Qatari desert. Diurnal sampling was conducted at two seasons of the year, the end of the dry season, at the beginning of autumn (October) in ... -
Design And Implementation Of A Microprocessor Controlled Digital Filter
( Qatar University , 1991 , Article)The construction and implementation of a microprocessor controlled real time recursive digital filter have been given. The system designed could also be applied to a variable coefficients system such as ADAPTIVE FILTER and ... -
Design and Performance Evaluation of a High Speed Transport Protocol
( Qatar University , 1994 , Article)Transport protocols that were designed for network today are not adequate for high speed networks of the future due to the increase in network bandwidth relative to the speeds of the processor components. As a result, 100 ... -
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, ... -
Design Of An E-Mail System For Personal Computers
( Qatar University , 1991 , Article)The design of an Electronic-Mail system that can operate in a personal computer (PC) environment is presented. The underlying philosophy is based on a centralized mailbox approach, wherein a dedicated SERVER stores the ... -
Design of Smoke Generator for Flow Visualisation
( Qatar University , 1988 , Article)Described in this paper is an alternative method for smoke generation for flow visualisation in low speed (subsonic) wind tunnel work. This method makes use of the smoke generating characteristics of Ammonia and Sulphur ... -
Designing Air Intake Ducts for High Speed Flight
( Qatar University , 1988 , Article)A proven duct flow model is used to examine the influence of the intake duct geometric and inlet flow parameters on the pressure recovery performance of intake ducts for high speed flight. The geometric parameters include: ... -
Detection Of Small Amounts Of Lard In Other Animal Fats
( Qatar University , 1993 , Article)The composition of fatty acids at the b-position (B-FA) and a, a' -positions of the. triacylglycerol was used to establish new criteria for the detection of small amounts of lard in other fats. Determination of P-FA was ... -
Detemining the importability of educational practices, programs and products.
( Qatar University , 1987 , Article)One of the ways that educators have found to meet their educational needs and problems is to utilize programs, practices, or products, here after referred to as practices in this paper, that other educators have developed. ... -
Determinants of Kuwaiti stock prices: An empirical investigation of industrial services, and food company shares
( Qatar University , 1991 , Article)Not available -
Determination Of Petrophysical And Mechanical Properties Interrelationship For Simulated Sands
( Qatar University , 2003 , Article)In the evaluation of a petroleum reserve, it is necessary to determine accurately certain petrophysical properties such as porosity and permeability of the reservoir rocks. These properties are affected by the relevant ... -
Determination Of Rheological Properties Of Polymer Solutions In Sandpacks
( Qatar University , 1992 , Article)There is a correlation between mobility ratio and oil recovery by water displacement in homogeneous and heterogeneous reservoirs. Because of this correlation, it is essential to develop a mobility control process which ... -
Determination of Sara constituents of southwestern Nigerian tars sands and their Physical properties
( Qatar University , 2005 , Article)Utilization potentials of Nigerian massive crude bitumen and associated heavy oil represent a promising source of security and economic benefits for the nation. However, production and processing technology of tar sands ... -
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 ... -
Developmental anatomy of the central nervous system of the cotton leaf worm, spodoptera littoralis boisd.
( Qatar University , 1983 , Article)The central nervous system, C. N. S., of the cotton leaf worm, Spodoptera littoralis (B.) develops from a median row of embryonic neuroblasts which divide repeatedly to form a double ganglionic chain. The two chains fuse ... -
Developmental Stages of the Acquisition of Negation and interrogation by Children Native Speakers of Qatari Dialect
( Qatar University , 2002 , Article)The developmental stages of Qatari Dialect interrogatives and negatives are described in this paper. Four children were included in this study, ranging in age from one year and six months to nine years. According to the ... -
Diagenesis of the middle eocene "nummulite bank" of The giza pyramids plateau, Egypt: petrologic and 18o/16o evidence
( Qatar University , 1994 , Article)The Middle Eocene "nummulite bank" of the Giza Pyramids Plateau has been extensively altered diagenetically. The result of a study involving petrography, cathodoluminescence, and 18O/160 and 13C/12C data, provide information ... -
Diagenetic Trends In The Pleistocene Calcareous Ridges, Mersa Matruh Area, Egypt
( Qatar University , 1993 , Article)Ooids are a major constituent of the Pleistocene carbonates along the northwestern coastal ridges of Egypt. For a detailed diagenetic study of the rocks, the Mersa Matruh area was selected. Petrographic examination shows ... -
Diagonalizable Indefinite Integral Quadratic Forms
( Qatar University , 1991 , Article)This paper deals with some special cases on Hasse's principle about the diagonalization of Z-lattices L of indefinite regular guadratic forms over Q. It is asserted that for some specific values of a certain set D of ...