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Now showing items 31-40 of 205
On the application of arabian gulf water in irrigation: A future possibility
(
Qatar University
, 1987 , Article)
Open seas waters have a chlorinity (Cl%o) of 35%o. Chloride and sodium are the dominant ionic species in sea water; where their gravimetric contents are 89.98 and 77.39% of total anions and cations, respectively. Sodium ...
Some Properties Of Class Zw
(
Qatar University
, 1987 , Article)
In paper |5| it was established Ilic inajorant w. Bill ex.iinples or a func'lion f £ Zw'were not coiistruclecl. In Illis |)is()er, in llie case of a snioolli closed curve, an example of such a function is constructed.
On Existence Of Two Real Periodic Solutions Of Differential Equations Of Riccati Type
(
Qatar University
, 1986 , Article)
In this paper we consider the two equations
z^z^p^z+r^t), (*) z^z^ptOz+r^t), (••)
where z € C, p, r) and r^ are real, continuous and periodic with period T.
It was shown ...
On Dirichlet Problem With Singular Integral Boundary Condition
(
Qatar University
, 1983 , Article)
In this paper a Dirichlet problem, with singular integral condition, is studied. It is shown that such problem can be reduced to a regular equation which allows us to construct the solution.
Effects of gamma radiation on the activity of the mosquito culex pipiens L. II. Effects on the sexual vitality of the mosquito
(
Qatar University
, 1988 , Article)
The effects of 3 gamma doses on the sex vitality of the mosquito Culex pipiens L. were studied after irradiation of the larvae, pupae or newly emerged adults.
No significant effect on the sex attraction was obseived when ...
Microdetermination Of Some Organic Nitriles Using The Cyanide Ion Selective Electrode
(
Qatar University
, 1985 , Article)
The response characteristics of the solid state cyanide ion selective electrode toward some organic nitriles are investigated. In 10 M KOH solution, the electrode exhibits near Nemstian response over the range of 10~2 to ...
Study of Magnetic Properties and Lattice Dynamics of the Cdx Co1-x Ferrite System by MossbauerEffect
(
Qatar University
, 1981 , Article)
The magnetic properties and lattice dynamics of the spinel ferrite system Cdx Coi-x Fe^ 04 (x = 0.0, 0.1, . . . , and 1.) were studied in the temperature range between 78 to 800°K. The results showed that the samples with ...
On The Existence And Uniqueness Of Solutions Of A Functional Differential Equation
(
Qatar University
, 1983 , Article)
A Remark On Proper Left H* — Algebras
(
Qatar University
, 1984 , Article)
W. Ambrose gave the theory of proper H* -algebras and M. Smiley in (2) gave an example of a left H* -algebra which is not a two-sided H* -algebra. Then he modified some of the arguments of Ambrose which yield the structure ...
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 ...