تصفح QU Ceased Journals حسب العنوان
السجلات المعروضة 384 -- 403 من 2240
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Experimental Investigation Of The Role Of Stabilizers In The Enhancement Of Automatic Voltage Regulators Performance
( Qatar University , 1991 , Article)In electrical power systems, dynamic stability problems may be solved through the application of power system stabilizers (PSS), which improve the performance of the main automatic voltage regulators (AVR's) of the synchronous ... -
Experimental Measurement Of Drop Phase Mass Transfer Coefficients For The Carbon Tetrachloride-Acetic Acid-Water System
( Qatar University , 1991 , Article)The overall mass transfer coefficients of single drops of carbon tetrachloride falling in a stagnant continuous phase of water containing acetic acid as solute were measured experimentally for different dispersed phase ... -
Explicit Forms of Conservation Laws of a Class of Differential Equations
( Qatar University , 1994 , Article)Explicit forms of conservation laws of a class of nonlinear partial differential equations are derived; firstly from BScklund transformation and secondly from the. fundamental equations of the corresponding inverse method. -
An exploratory study of the complexity and consensus dimensions of stereotypes among Qatari and Bahraini University students
( Qatar University , 1983 , Article)The complexity and consensus dimensions of stereotypes held by 132 male and female university students from Qatar and Bahrain towards themselves and 11 other nationality groups were studied by using a modified Katz and ... -
An Extension of the Szasz-Mirakyan Operator on the Whole Real Axis
( Qatar University , 2000 , Article)The aim of this paper is to present a new extension of the Szasz-Mirakyan operator n the whole real axis, and to give its convergent approximation theorem. -
The extraction of positive and negative language transfer factors
( Qatar University , 1988 , Article)This study aims at exploring the possibility of extracting two language factors, i.e., negative and positive language transfer factors, by means of the statistical technique of factor analysis. One thousand five hundred ... -
Facile synthesis of several new pyridine and fused pyridine derivatives with Anticipated biological activity
( Qatar University , 1994 , Article)The reactions of benzothiazol-2-N-acetylacetohydrazide 1 with a, (}-unsaturated aldehyde, ketone, ester or diketoester led to the formation of the titled ring systems. The same target was also achieved through the reactions ... -
Factor analysis of integrated radiometric data as an aid In geological mapping of gebel eneigi area South Eastern Desert, Egypt
( Qatar University , 1994 , Article)Factor analysis technique was applied to airborne gamma-ray spectrometric data of Gebel Eneigi Area, South Eastern Desert of Egypt where the concentration maps of U, Th, K and their ratios besides the Tc (total count map) ... -
Factors Governing Mosquito Susceptibility To Bacillus Sphaericus Strains
( Qatar University , 1992 , Article)Three lyophilized strains of Bacillus sphaericus (1593-4, 2297 and SSII) were tested against four different mosquito species. Culex pipiens larvae demonstrated the highest level of susceptibility towards the 3 B. sphaericus ... -
Factos in European Economic Integration: A Non-Partial Re-Appraisal
( Qatar University , 1990 , Article) -
A Family Of Nonramified Functions, Defined In Zz<1
( Qatar University , 1983 , Article)In this article a family of nonramified functtions, defined in zz<l, is obtained. It is characterized by an achieved distortion theorem; its Bloch constant and the limit of convexity are determined. Peschl's principle is. ... -
Fatty acid composition of sargassum denticulatua1and s. Latifouum as influenced by the time of collection and the plant organ
( Qatar University , 1995 , Article)Fatty acid profile of two species of Sargassum namely, 5. denticulatium (Forsk). Borgesen and S. latifolium (Turn) Ag., from the Red Sea coast of Egypt was studied. Fatty acid data indicate that there is a strong seasonal ... -
Fe57 Mossbauer Study In Cobalt Substituted Magnetite
( Qatar University , 1983 , Article)The Mossbauer effect has been studied in the mixed ferrites CoxFe3_x04 (for x = 0.8, 0.9 and 1) with the spinel structure in the temperature range between 78 and 830K. The composition with x = 1, showed an expected Zeeman ... -
Feasibility Of Oil Recovery By Polymer/Alkaline Flooding Through Horizontal Well
( Qatar University , 2000 , Article)A laboratory study on Saudi oil recovery by polymer/alkaline flooding from a horizontal well in a scaled quarter five-spot model was conducted. Safaniya crude oil, obtained from Safaniya oil field operated by Saudi Aramco, ... -
Feasibility Of Wind Energy Utilization In Qatar*
( Qatar University , 2002 , Article)This work presents an assessment of the potential and economical feasibility of adopting wind energy as a renewable source of energy in Qatar. An analysis is presented for the long term measured wind speed (1976-1989) at ... -
The fecundity of gerres oyena forskal 1775, ( fam. Gerreidae) in the qatari waters of the arabian gulf
( Qatar University , 1986 , Article)Fecundity estimates were made on a total of 180 mature fish Genes oyena Forskal of different lengths and weights, collected during the early spring of 1985. Log-log relationships were estimated between fecundity (either ... -
Feeding Behaviour and Food Selection of Dhab Uromastyx microlepis From Wild Vegetation
( Qatar University , 2001 , Article)The present study deals with the food selection and feeding behaviour of Uromastyx microlepis 'dhab' spiny tailed lizard during a period of one complete year inhabiting AL-Gassim desert area. Climatically the area can be ... -
The Female-moneme in English: Semantic Considerations in Testing Moneme-ldentity
( Qatar University , 1998 , Article)The purpose of the present paper is to explore the possibility of testing hypotheses for moneme identity by using an additional criterion of adequation with respect to semantic factors: a criterion concerning the assumption ... -
Ferricretes of the Early Tertiary Dammam Formation in the Dukhan Area, Western Qatar: mineralogy, geochemistry, and environment of deposition
( Qatar University , 2003 , Article)Ferricretes of the Middle Eocene Dammam Formation, Western Qatar, were investigated using petrographic and ore microscopy, IR TGA, XRD, and geochemical analyses. The ferricretes mainly consist of goethite, which is very ... -
Filtered Dehomogenization Theory For The Micro-structure sheves OY
( Qatar University , 1999 , Article)In this work we study the theory of dehomogenization at the level of filtered sheaves using the micro-structure sheaves. For the sheaf of quantum section the results are still true.