Browsing QU Ceased Journals by Title
Now showing items 350-369 of 2240
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Effects of the expected sea level rise on avicennia marina L: a case study in Qatar
( Qatar University , 1995 , Article)A simulation of the expected sea levels rise was carried out by imposing a state of protracted flooding on seedlings of the mangrove species Avicennia marina L. under natural conditions. The imposed flooding resulted in ... -
Efficiency Of Ground Water Resources In Northeast Sinai Peninsula, Egypt
( Qatar University , 1993 , Article)The present study deals with actual quantitative and qualitative evaluation of the groundwater resources in El Sheikh Zuwayid-Rafah area, the northeast coast of Sinai Peninsula. The quantitative analysis is achieved by ... -
The electrical and optical properties of poly (4-ethylidene-l, 3-cyclopentylene vinylene)
( Qatar University , 1989 , Article)The intrinsic viscosity, electrical conductivity and IR absorbance were measured for the sample of poly (4—ethylidene—1, 3—cyclopentylene vinylene). The sample is strongly oxidized in air. Under vacuum the activation energy ... -
Electrical Conductivity Of Aluminum Reinforced Graphite Electrodes
( Qatar University , 1993 , Article)Composite, disc-like aluminum reinforced graphite electrodes were prepared, and an integrated parametric analysis has been performed to investigate the effect of some processing parameters on the electrical conductivity ... -
Electrical Properties Of The Lower Eocene Rocks In Qatar
( Qatar University , 1987 , Article)Thirteen limestone samples representing the Rus Formation (Lower Eocene) are selected' from four locations in Qatar Peninsula. These samples are subjected to electrical resistivity, porosity, shaliness factor and water ... -
Electrochemical behaviour of some pyrimidine derivatives: polarographic reduction of 1, 3-dimethyl-2, 4, 6(1h, 3h, 5h) pyrimidinetrione and its substituted 5-phenylazo
( Qatar University , 1994 , Article)The polarographic behaviour and spectrophotometric pKa of 1,3-dimethyl barbituric acid and 5-phenylazo substituted products were investigated in buffer solution of pH ~ 2-11. The results revealed an azo form of the substituted ... -
Electrode Surface Roughness Effect on the Breakdown Characteristics of Compressed Gas Cable
( Qatar University , 1988 , Article)The influence of electrode surface roughness on the breakdown field strength in SFu gas and mixtures is investigated. A coaxial electrode configuration is used to represent a practical gas insulated cable. With the use ... -
Electron microscopic and autoradiographic analysis of the distribution of the vagus nerve in the ferret stomach
( Qatar University , 1999 , Article)In this study, tritiated leucine was injected into the vagal dorsal motor nucleus after acute and chronic partial vagotomy. The method of sampling of the stomach, application of % 2 test and the analysis of the electron ... -
Electrophoretic patterns of proteins and enzymes in paramphistomum (p.) Microbothrium and carmyerius gregarius
( Qatar University , 1990 , Article)The electrophoretic patterns of total soluble proteins, esterases, Glutamic-oxaloacetate transaminase (GOT) and malate dehydrogenase (MDH) are determined in two paramphistomes, infecting cows and buffaloes, namely ... -
Elliptic surfaces over a genus 1 curve with exactly the pair (I8, IV) of singular fibers
( Qatar University , 2000 , Article)In this paper we classify all minimal elliptic surfaces (TI : E —> C) over a genus 1 curve C, with a section and exactly the pair (Is, IV) of singular fibers. -
Elliptic surfaces over a genus 1 curve with the pair (l3, l9) of singular fibers.
( Qatar University , 2000 , Article)In this paper we give a classication of all minimal elliptic surfaces (n : E —> C, g(c) = 1) with a section and exactly the pair (L, L)) of singular fibers. -
Embryonic Development Of The Olfactory Organ In Mice
( Qatar University , 1994 , Article)The development of the olfactory organ in the prenatal stages of mice (Patch/normal Balb/c) was studied. Eight stages were selected for this study; they are 9,10,11,12,13, 14,16 and 18 days of gestation. At 9 days of ... -
Empirical Investigation Of Wave Velocities In Bahariya Formation, Western Desert, Egypt
( Qatar University , 1994 , Article)In the Meleiha Oil Field, Western Desert of Egypt, eleven selected drilled wells were chosen to investigate the seismic velocities in the Bahariya Formation. The velocity-depth relations were studied and equated. The ... -
Energy Exchange Between The Sea And The Atmosphere At Doha Harbour (Qatar) In The Arabian Gulf
( Qatar University , 1996 , Article)Meteorological and oceanographic data from 1979 to 1988 have been analyzed and utilized to calculate the heat budget terms of the water at Doha Harbour. The monthly mean of solar radiation has the largest annual amplitude, ... -
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 ... -
Enzymatic Upgrading of Fish and Crustacean Products
( Qatar University , 1999 , Article)Fish wastes constitute an important source of biologically active molecules possessing peculiar properties and practical application promises in various areas ( agriculture, medicine, chemistry, biotechnology ). Several ... -
Enzyme production and antibiotic susceptibility of propionibacterium acnes and p. Granulosum from acne vulgaris patients and healthy persons
( Qatar University , 1996 , Article)Seventeen strains of Propionibacterium acnes and ten strains of P. granulosum were isolated from acne patients, in addition to ten isolates of each species from healthy persons. All strains were examined for their enzymatic ... -
Estimates of Potential Evapotranspiration Over The State of Qatar
( Qatar University , 1989 , Article)Several methods for the estimation of potential evapotranspiration are reported in the literature covering a wide variation in the complexity of calculation and nature of climatic data required. Five of the more commonly ... -
Evaluation And Improvement Of Traffic Flow Patterns In Urban Centers
( Qatar University , 2003 , Article)Presented in this paper is process of evaluation and improvement of traffic flow pattern in urban centers. The process is carried out by applying TRANSYT-7F program. The data was collected from a selected network within ... -
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 ...