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السجلات المعروضة 1311 -- 1320 من 1470
Planting Date Effect On Growth Characters And Yield Of Sorghum Under A Dry Farming-System In An Arabian Gulf Environment
(
Qatar University
, 1996 , Article)
Irrigated crop production in Qatar is a risky enterprise due to extreme weather conditions. Temperature is sufficiently warm to allow planting of grain sorghum [Sorghum bicolor (L.) Moench] from Aug through to Oct. Crops ...
أثر برنامج متكامل بين القواعد الوظيفية والقراءة على الأداء اللغوي لتلميذات الصفوف الثلاثة الأخيرة من المرحلة الابتدائية بدولة قطر
(
Qatar University
, 1991 , Article)
التدريب على الكمبيوتر وأثره في تغيير اتجاهات الطالبات نحو الكمبيوتر
(
Qatar University
, 1991 , Article)
تهدف هذه الدراسة التجريبية الى معرفة وتحديد أثر تدريس مقرر الحاسب الآلي في التعليم على تغيير اتجاهات عينة من طالبات كلية التربية نحو تطبيقات الكمبيوتر في التعليم .
وقام الباحث بتصميم استبانة خاصة للحصول على البيانات ...
Measurement Of Thermal Conductivity Of Thermally Low-Conducting Materials
(
Qatar University
, 1995 , Article)
The thermal conductivity of a building material is a necessary parameter in estimating the cooling load of a building. Cooling load estimates are quite important in selecting building materials especially in hot-climate ...
Ruthenium(II), Ruthenium(III) And Osmium(III) Complexes With Rn-Neutral Donor Ligands, And Their Catalytic Oxidative Properties
(
Qatar University
, 1994 , Article)
A number of new complexes [RunCl2 (PPh3)2L], [RumX3 (AsPh3)L] and [OsnICl3(PPh3)L'] [L= o-anthranilonitrile(anth), o-phenylenediamine(phdm), l,10-phenanthroline(phen), 2,2'-bipyridine(bipy); L' = Phen, bipy; X = Cl, Br] ...
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 ...