Search
Now showing items 1-10 of 117
ولاية الحسبة في عهد العباسيين
(
Qatar University
, 1990 , Article)
Ecological Studies On The Bottom Fauna Of Lake Manala, Egypt
(
Qatar University
, 1990 , Article)
An ecological survey has been conducted for the benthic Community in Lake Manzala during May and June, 1985. The diversity and distribution of organisms are largely determined by salinity. Mean abundance of benthic fauna ...
Nitrogen fixation in polluted sea water of Alexandria coast, Egypt.
(
Qatar University
, 1990 , Article)
The inshore area of the Mediterranean water, west of Alexandria, Egypt, is subjected to different types of pollutants. Nitrogen fixation rate was studied in this area in relation to some environmental factors such as pH, ...
المخدرات والمؤثرات العقلية بين الدافعية والتأثير وإمكانية العلاج والوقاية
(
Qatar University
, 1990 , Article)
المد والجزر في السياسية البريطانية تجاه شبه الجزيرة العربية (2) بريطانيا بين عبد العزيز آل سعود والشريف حسين 1915 - 1920
(
Qatar University
, 1990 , Article)
Effect of sulphates in cement (containing 5% pozzolana) and in sand on the correlation between compressive strength and u.p.v. of concrete of different mixes
(
Qatar University
, 1990 , Article)
Sulphates may be found in any of the raw materials of cement. Sand contaminated with sulphates is currently a local problem because of the difficulty in obtaining well-graded sand which could be used in concrete that has ...
Influence of Surface Finish on Fatigue Life of Steel Specimens Subjected to Pure Bending
(
Qatar University
, 1990 , Article)
It has long been appreciated that surface conditions exert significant influence on fatigue behavior. The new capabilities of identifying and measuring surface parameters together with the significant development in data ...
دور القراءات في تيسير الاستعمال اللغوي المعاصر
(
Qatar University
, 1990 , Article)
العلاقة بين الجزيرة العربية واليونان منذ عصر الاسكندر حتى بداية العصر الروماني
(
Qatar University
, 1990 , Article)
دراسة تحليلية لقطاع انتاج الألبان بدولة قطر
(
Qatar University
, 1990 , Article)