Browsing QU Ceased Journals by Title
Now showing items 889-908 of 2240
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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 ... -
The Reproducing Capacity of Gamma Irradiated Adults of Trogoderma Versicolor (Creutz)
( Qatar University , 1993 , Article)Male and female, Trogoderma versicolor (Creutz.) were irradiated by gamma radiation as newly emerged adults (12-24 hrs. after emergence). Males required higher doses than females to be sterilized and the reproductive ... -
Reproducing Formula and Algorithm of a Familv of Biorthonormal Wavelets
( Qatar University , 2005 , Article)In this paper we present a family of biorthonormal wavelets generated by a MRA orthonormal wavelet, which possesses two arbitrary parameters. Then we discuss new expressions of reproducing kernel as well as the corresponding ... -
Reproductive ecology of the common rock chiton Acanthopleura gemmata (mollusca: polyplacophora) in the Northwestern coast of the red sea
( Qatar University , 1996 , Article)The reproductive cycle of the chiton, Acanthopleura gemmata was studied by observing the gonad indices at two localities in the North-western coast of the Red Sea, from January 1988 to December, 1989. The interrelationships ... -
Response of Date Palm Pollen Tube Growth to Storage Period and Conditions
( Qatar University , 1994 , Article)The growth rate of pollen tube of date palm (Pheonix dactylifera L.) pollen grains stored either freeze-dried or unfreeze-dried at 25, 4 and - 8°C was measured after 3,7 and 12 months of storage. The growth of pollen tube ... -
Response of Nile Phytoplankton to Algicide (CuSO4, 5H2O) In Multispecies Chemostat Experiments
( Qatar University , 1994 , Article)The addition of CuSO4 . 5H2O (algicide) to cultures of phytoplankton populations from the river Nile, grown under steady-state conditions using chemostat, resulted in remarkable alterations in species composition, total ... -
A Review of Fatigue Testing Machines
( Qatar University , 1990 , Article)In this paper fatigue testing facilities are first classified in accordance with a number of features which include purpose, type of loading, method of load application and transmittal as well as control system. Owing to ... -
A Review Of Petroleum Engineering Aspects Of Qatar's Oil And Gas
( Qatar University , 1998 , Article)This paper reviews, from a petroleum engineering point of view, the 60 years of discovery and development of tlie oil and gas resources within the boundaries of the State of Qatar. Up to 1990 there were four major hydrocarbon ... -
A review of process and production in SL studies
( Qatar University , 1990 , Article) -
Review of the genus polymorphus luhe, 1911 (acanthocephala:polymorphidae), with the synonymization of hexaglandula petrochenko, 1950, and subcorynosoma hoklova, 1967, and a key to the species
( Qatar University , 1992 , Article)The position, concept and composition of the genus Polymorphus (= Profilicollis Meyer, 1931; Falsifilicollis Webster, 1948; Parafincollis Petrochenko, 1950; Subfilicollis Hoklova, 1967) are critically evaluated and a new ... -
A review of the trematode genera Haplosplanchnus Looss, 1902 and Prohaplosplanchnus Tang and Lin, 1978 with redescription of three species from the mullet in Libya
( Qatar University , 1997 , Article)The trematode genera Haplosplanchnus Looss, 1902 and Prohaplosplanchnus Tang Lin, 1978 were reviewed. H. indica Gupta and Ahmad, 1979, H, mugilis Nahhas and Cable, 1964 and P. diorchis Tang and Lin, 1979 were redescribed ... -
The Role of Capital Market in the Implementation of Privatisation: The Case of Doha Securities Market (DSM) in The State of Qatar
( Qatar University , 2000 , Article) -
The role of Climate in affecting energy demand/supply in the State of Qatar
( Qatar University , 1989 , Article)The study attempts to investigate the impact of Climatic factors on the present and future energy demand/supply in the State of Qatar. The effects of climatic parameters such as temperature, humidity and wind on electric ... -
The Role Of Gis Technology In Urban Development In The Arab Gulf States
( Qatar University , 2000 , Article)The purpose of this paper is to illustrate the role of the geographic information systems (GIS) in improving urban development in the Arab Gulf States. The paper is structured as follows. Background information on the ... -
The Role of Improper Use of Artificial Insemination on Infertility and Abortion in Cows in Basrah Province, Iraq: Microbiological Study
( Qatar University , 2006 , Article)A prospective study was performed to demonstrate the infectious causes and their mode of transmission in cases of infertility and abortion in cows. There were 434 artificially inseminated cows, of which 155 (35.7%) did not ... -
Role of Proteinases in the Degradation of the Major Storage Proteins of Linseed Germinating Seeds
( Qatar University , 1999 , Article)The proteolytic activities of the germinating linseed using casein, azocoll and linseed globulin as substrates showed a steady increase until 48 hr of germination, followed with a rapid increase to reach a peak after 3 ... -
The role of radiogenic heat in maturation of organic matter within oil shales of Duwi formation in Quseir-Safaga District, Red Sea coastal area, Egypt
( Qatar University , 1997 , Article)The oil shale beds of Duwi Formation at Quseir-Safaga district in Egypt show a high content of organic matter (kerogen) and a fair pyrolysis oil yield. Kerogens of these rocks are composed mainly of marine amorphous and ... -
Ruthenium(II), Ruthenium(III) And Osmium(III) Complexes With Rn-Neutral Donor Ligands, And Their Catalytic Oxidative Properties
( Qatar University , 1994 , Article)A number of new complexes [RunCl2 (PPh3)2L], [RumX3 (AsPh3)L] and [OsnICl3(PPh3)L'] [L= o-anthranilonitrile(anth), o-phenylenediamine(phdm), l,10-phenanthroline(phen), 2,2'-bipyridine(bipy); L' = Phen, bipy; X = Cl, Br] ... -
S — Compactness Via Ideals
( Qatar University , 1991 , Article)Compactness modulo as an ideal has not been widely studied. Many new sorts of weak compactness have been introduced to topological spaces in the last twenty years but have not been studied using ideals. So, the main aim ... -
S.G. Connected Spaces
( Qatar University , 2000 , Article)The purpose of this paper is to introduce and study a strongr type of connectedness called s.g connectedness in topologi-cal spaces.