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Now showing items 1291-1300 of 1381
Age Environmental Factors, Germination And Seedling Emergence Of Ocimum Basilicum L
(
Qatar University
, 1990 , Article)
Fresh and exhumed seeds of Ocimuni basilicum L. gave 100 % germination at 13/11-h alternating temperature of 20/10, 32/18, 38/24 and 40/32 °C but did not germinate at constant temperatures. Germination was prevented in the ...
Distribution And Mineralogy Of The Clay Deposits In Saudi Arabia
(
Qatar University
, 1993 , Article)
The main goal of this paper is to characterize the mineral clay deposits in Saudi Arabia; especially their mineral composition, deposit size, geological setting and possible uses. Different published reports and papers on ...
Decomposition of a Special Type of Machines
(
Qatar University
, 1994 , Article)
In this paper, the concept of a finite n-state cyclic machine An is defined. These machines are then completely characterized using the prime factorization of n. Specifically, it is proved that any finite-state cyclic machine
Effect of chemical grafting on the surface structure of porous bentonite as a support in gas chromatography
(
Qatar University
, 1994 , Article)
The effect of thermal and chemical treatments on the variation of specific surface area of porous bentonite as a support was studied. The surface area of bare bentonite thermally treated at 950°C and then washed with ...
Factors Governing Mosquito Susceptibility To Bacillus Sphaericus Strains
(
Qatar University
, 1992 , Article)
Three lyophilized strains of Bacillus sphaericus (1593-4, 2297 and SSII) were tested against four different mosquito species. Culex pipiens larvae demonstrated the highest level of susceptibility towards the 3 B. sphaericus ...
مصدر الضبط وعلاقته بكل من قوة الأنا والعصابية والانبساط لدى عينة من طلبة وطالبات الجامعة بدولة قطر : دراسة عاملية مقارنة
(
Qatar University
, 1993 , Article)
هدفت هذه الدراسة إلى فحص العلاقة بين مصدر الضبط وكل من قوة الأنا، العصابية، الانبساط، وذلك على عينة من طلبة وطالبات جامعة قطر وذلك بواقع (101) من الذكور و (103) من الإناث، وقد قسمت عينة الدراسة إلى أربع مجموعات، مثلت ...
Monovalent Anion Interaction on the Electron Flow of Photosystem II in Soyabean Cells
(
Qatar University
, 1994 , Article)
Steady state of electron transport measurements from water to DMQ (2, 5 - dimethyl - P- benzoquinone) show a maximum bicarbonate effect (about four fold stimulation) following the addition of 5 mM HCO"3 to the previously ...
Pollen Morphology of some Cultivated Varieties of Strawberry
(
Qatar University
, 1999 , Article)
Pollen grains of twelve cultivated varieties of strawberries grown in Egypt were morphologically studied using both light microscopy and SEM observations. These varieties include eleven cultivars of Fragaria x ananassa ...
Bayes Estimation of the Parameter of Burr Type II Distribution in Case of Type II Censoring
(
Qatar University
, 1997 , Article)
Suppose that Xj, X2, ..., Xn is a random sample of failure times from a Burr type II (B2) distribution
with parameter 9. Let x = (xj, x2, , xr) with xj < x2 S x3 < < xr be the observed failure censored
sample of the first ...
Optimum Design Of Concrete Slab Forms
(
Qatar University
, 1996 , Article)
This paper presents a design optimization method for concrete slab forms. This procedure was formulated to provide a safe slab form design with minimum cost. The proposed method considers in its design process the cost of ...