Search
Now showing items 611-618 of 618
Mossbauer Effect Study of Libyan Desert Silica Glass
(
Qatar University
, 1981 , Article)
The Mossbauer effect and X-ray fluorescence techniques are applied to study the Libyan Desert Silica Glass. The X-ray flourescence proved the existence of 13 elements in each sample of five glass types with differences in ...
Study of A Time Dependent Double -Diffusive Salinity Problem
(
Qatar University
, 1989 , Article)
The time-dependent, double diffusive stability problem for a horizontal layer of salty water bounded by two rigid isothermal surfaces is analyzed using a linear perturbation technique. Initially, the layer is subjected to ...
17- Hydroxylation Of Progesterone By Cunninghamella Echinulata On A Laboratory Fermentor Scale
(
Qatar University
, 1985 , Article)
The mircrobiological transformation of progesterone by a local isolate of Cunninghamella echiiiulata using a laboratory fermentor was studied. Progresterone (10-50 g/1) wetted by Tween 80 was added to 48-hour old culture ...
A Note on Norland Summability of Fourier Series
(
Qatar University
, 1982 , Article)
In this paper we consider point-wise summability in the Norlund sense of Fourier series by assuming
H(n) . F(n) = o (Pn) as n--+ oo, where (H(x) = d.x g(t) dt, g(t) is continuous, non-increasing, H(x) is slowly varying, ...
A Two-Point Boundary Value Problem for a Second Order Differential Equation with Parameter
(
Qatar University
, 1982 , Article)
A short critique of the Crescent English Course
(
Qatar University
, 1988 , Article)
This paper is a short critique of the "Crescent English Course", Pupils Book 2. It falls into two parts. The first is information about the course; its aims, organization and some of its general characteristics. The second ...
A study of the interlanguage of some Arabic students of English
(
Qatar University
, 1988 , Article)
In this study, the contrastive analysis method is used to investigate the lnterlanguage (IL) developmental sequences of the acquisition of some aspects of English by Arabic-speaking learners. The learners, whose language ...
Printing in the Arab World with emphasis on the Bulaq press in Egypt
(
Qatar University
, 1982 , Article)