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Now showing items 11-20 of 30
القوس في الشعر الجاهلي و الاسلامي
(
Qatar University
, 1998 , Article)
القوس سلاح خطير من أسلحة العرب كان له دوره في السلم والحرب ، حددت مصير كثير من الحروب ، وكانت أداة رئيسية من أدوات الصيد ، والى جانب هذا وذاك كانت سلاحا فتاكا في أيدي اللصوص والصعاليك ، وشهر من العرب رماة عرفوا بدقة إصابتهم ...
Constituents of plants growing in Qatar: part xxviii. Constituents Of cistanche phelypaea
(
Qatar University
, 1995 , Article)
Ten compounds were isolated from the methanolic extract of the aerial parts of Cistanche phelypaea (Orobanchaceae) and identified as echinacoside (1), tubuloside A (2), tubuloside E (3), acteoside (4), 2'-acetylacteoside ...
Solid-State Ac-Conductivity Analysis For The Long Debated Catalytic Activity Of The Boralite Sieve
(
Qatar University
, 1996 , Article)
The ac-phase dependent impedance, capacitance and dielectric loss of boralite are measured and correlated with those of a similar history HZSM-5 as a function of frequency (0.1-100 kHz) and temperature (373-638 K) at 0.8 ...
A Spreadsheet Teaching Tool For Analysis Of Pipe Networks
(
Qatar University
, 1997 , Article)
Spreadsheets are used widely in engineering to perform several analysis and design calculations. They are also very attractive as educational tools due to their flexibility and efficiency. This paper demonstrates the use ...
جغرافية العالم الإسلامي ومستقبله
(
نظام الشافعي، علي الشيب، بسام النصر
, 1995 , Book)
اعتمد الكتاب في بياناته على احدث المراجع العالمية والاقليمية والوطنية ، والبحوث الحديثة التي درست جوانب من القضايا الجغرافية المتعلقة بدول العالم الاسلامي . وقد حاولنا في الكتاب ان يكون في نهاية كل فصل دراسة اقليمية ...
Effect of gamma radiation on the morphology and Thermophysical properties of the pollen wall of Phoenix dactylifera L.
(
Qatar University
, 1994 , Article)
Pollen grains of Phoenix dactylifera were exposed to different doses of gamma radiation (250,500,1000 rad and 1 M rad). To access the effect of radiation on the external morphology of the pollen grains, they were examined ...
المرأة ورواية الحديث النبوي
(
المعهد الوطني للتعليم العالي للحضارة الإسلامية
, 1998 , Article)
كان للمرأة المؤمنة دور في التاريخ الإسلامي لا يقل أهمية عن دور الرجل، ولكن في عفة وكرامة وتمايز للطبائع والأدوار، ومن تمام الخلق أن يكون كل مخلوق ميسرا لما خلق لأجله، وقد حثت نعاليم الإسلام على التبليغ. فقال صلى الله عليه ...
Bacteremia and septicemia in Qatar
(
Ministry of Defence And Aviation
, 1999 , Article)
Objectives: The aims of the study are to define the pattern of bacteremia and septicemia in Hamad Medical Corporation in relation to the susceptibility of the implicated microbes to various antimicrobial agents. Methods: ...
Performance of Greenhouses in The Arabian Gulf
(
Qatar University
, 1990 , Article)
This work is devoted to the gaining of insight into the operation of environmentally controlled greenhouse in hot and humid climates. Field data inside and outside the greenhouse, namely: solar radiation, dry and wet bulb ...
Solidification Of Steel Billets In Continuous Casting
(
Qatar University
, 1991 , Article)
For practical operation, it is necessary to know how the solidification of liquid steel progresses i.e. when and where a strand has completely solidified. Decisions on, the casting speed, the spray water flow rates and ...