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Now showing items 151-160 of 451
Biochemical Characterization Of Human Schistosomes And Their Molluscan Hosts By Electrophoretic Techniques
(
Qatar University
, 1994 , Article)
The recent application of biochemical techniques in taxonomy markedly improved the specific identification and strain characterization of a wide range of living organisms. These techniques are gradually replacing classical ...
The mineralogy and chemistry of cement and cement raw materials In the united arab emirates
(
Qatar University
, 1996 , Article)
The raw materials, clinkers and cements from different cement factories in the United Arab Emirates have been investigated using polarizing microscopy, X-ray diffraction (XRD), Scanning electron microscopy (SEM), and ...
Morphisms Of Affine Schemes And Equivalence Of Categories
(
Qatar University
, 1996 , Article)
In this work we construct the relation between the category R-filt (G(R)-gr) and the category O^ — Filt(O^ — Gr).
The quantum (ungraded) version of this result can be obtained by restricting to parts of zero degree. ...
The Models of a General Component of a Distributed Computing Systems Based On Stochastic Petri Nets
(
Qatar University
, 1994 , Article)
In this paper we propose models of a distributed computing system (DCS) based on general stochastic Petri nets (GSPN). We also propose the means to decrease the number of states. We indicate that the complexity of DCS ...
A practical Approach for water Use Efficiency in Arid Areas
(
Qatar University
, 1997 , Article)
A practical approach for water use efficiency (WUE) relying on the actual amount of applied water was examined from both theoretical and practical stand points. Pearlmillet {Pennisetum americanum (L.) K. Schum), sorghum ...
A comparative study of the mechanical properties of low Density polyethylene (ldpe)
(
Qatar University
, 1997 , Article)
Mechanical properties of engineering polymers which are the most important properties for design and construction purposes are diverse. This has been proved by investigation tensile properties of different grades of LDPE ...
Synthesis of some newer indazolyl-oxadiazoles, thiadiazoles and 1,2,4-Triazoles
(
Qatar University
, 1994 , Article)
2-Aryl-3-chloro-2H-indazole (4), obtained in excellent yield (>90%) by the action of thionyl chloride on o-azidobenzanilide(3), was allowed to condense with ethyl p-aminobenzoate to afford the corresponding indazolo-ester ...
Ecological Characteristics Of The Littorial Fauna At Tubli Bay, Bahrain
(
Qatar University
, 1995 , Article)
Papers presented at The gulf symposium on Environmental biology, University of Qatar, 7-9 May 1994
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The intertidal fauna inhabiting a wide range of habitats at Tubli, an inshore bay on the eastern part of ...
The Mineralogy and Chemistry of Urinary Stones from the United Arab Emirates
(
Qatar University
, 1999 , Article)
The purpose of this study is to characterize urinary stones from the United Arab Emirates using mineralogical techniques and compare it with stones in nature. Twenty six urinary calculi were subjected to chemical analysis, ...
Combined effects of oxygen, partial vacuum, temperature, humidity and gamma radiation on mating competitiveness of culex pipiens complex l. Males
(
Qatar University
, 1993 , Article)
When the pupal stage of Culex pipiens complex L. male mosquito was exposed to gamma radiation (60 Gy), oxygen, partial vacuum (0.1 torr), low temperature (10°C), for one or two hours, or low humidity (31% R. H.) for 3 ...