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Analysis of dopant diffusion in molten germanium induced by pulsed nd : yag laser
(
Qatar University
, 1995 , Article)
Laser - induced diffusion of various dopant elements into intransic germanium based on the dipping of Ge into dopant solution, have been used to produce doped ge layer using yag pulse laser with 300us duration ( A, = 1.664(1 ...
Spectroscopy in Corrosion Studies of Copper
(
Qatar University
, 1994 , Article)
Spectrophotometric measurements were used to study corrosion of copper in aqueous solutions containing the four following depolarizers: K2Cr2O-j, K2S2O8, Fe(NH4)(SC>4)2 and CCI3COOH. A silica cell was used for the corrosion ...
Biochemical studies on the relationship between hypothyroidism and/or some Rheumatic diseases
(
Qatar University
, 1994 , Article)
Sixty seven patients were selected and divided into four groups according to their clinical condition covering normal controls, hypothyroid patients suffering from both hypothyroidism and rheumatic disorders and rheumatic ...
Cellulose - Decomposing Fungi From Saudi Arabian Soils
(
Qatar University
, 1996 , Article)
Thirty fungal species belonging to fifteen genera were collected from 30 soil samples on cellulose Czapek agar. The highest number of fungal species was isolated from Dammam (20 species) followed by Niomas (18 species), ...
Total Mercury Levels In The Coastal Environment Of Qatar (Arabian Gulf)
(
Qatar University
, 1999 , Article)
The levels of total Mercury (t-Hg) were determined in various segments of the marine environment of Qatar. Several coastal stations, both on the East as well as the West coast of Qatar were worked for t-Hg in seawater, ...
Biodiversity Of Helminth Parasites Of Fishes In The Arabian Gulf, With Special Reference To Digenetic Trematodes And Cestodes
(
Qatar University
, 1996 , Article)
Biodiversity of the fish fauna in the Arabian Gulf is remarkable with more than 450 species known to date in this offshoot from the Indian Ocean. The present status of our knowledge on helminth parasites of fishes in the ...
Application of the resistivity method to study ground water potentialities on a part of the entrance of wadi el-assiuti, Eastern desert, Egypt
(
Qatar University
, 1993 , Article)
Wadi El-Assiuti is located east of Assiut city and extends in almost northeast direction. The entrance of the wadi is suitable site for reclamation and city planning projects. Consequently, it is very important to study ...
Nitrogen fixation in polluted sea water of Alexandria coast, Egypt.
(
Qatar University
, 1990 , Article)
The inshore area of the Mediterranean water, west of Alexandria, Egypt, is subjected to different types of pollutants. Nitrogen fixation rate was studied in this area in relation to some environmental factors such as pH, ...
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 ...
Effects of the electric field and gamma Radiation on the optical properties of Modified low density polyethylene
(
Qatar University
, 1997 , Article)
The effect of electric field and gamma radiation on the optical properties of low density polyethylene LDPE grade CD 0230 have been studied. The samples were irradiated at gamma doses of 0-100 Mrad and varying electric ...