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Constituents of plants growing in Qatar xxiv phytochemical investigation of salvia aegyptiaca L.
(
Qatar University
, 1994 , Article)
The study of the flavonoids revealed the isolation and identification of luteolin, luteolin 7-O- glucoside, apigenin and apigenin 7-0 glucoside; their identity was proved by m.p., TLC, UV, IR and MS. Moreover, a coumarin ...
Correlations Of Some Tensile Properties For Various Grades Of Low Density Polyethylene
(
Qatar University
, 1994 , Article)
The tensile properties of nine different grades of low density polyethylene were measured, and the relationships resulting from the combination of different pairs of properties were analyzed. It was found that some properties ...
A Preliminary Check-List Of Benthic Mollusca On The Qatari Coasts, Arabian Gulf
(
Qatar University
, 1994 , Article)
In this paper, an annotated checklist of the benthic marine Mollusca collected from Qatari coasts, Arabian Gulf, is presented. Localities and habitats are given for the common families of the recorded groups. Gastropoda ...
Shear Behavior Of Reinforced High-Strength Concrete Beams Without Shear Reinforcement
(
Qatar University
, 1994 , Article)
Eighteen rectangular singly reinforced high-strength concrete beams without web reinforcement were tested in combined shear and flexure. The main variables were the longitudinal steel reinforcement ratio and the shear-span ...
تحليل وتقييم العبء الدراسي لطلاب جامعة أم القرى وعلاقته بالمعدل التراكمي
(
Qatar University
, 1994 , Article)
هدفت هذه الدراسة إلى تحليل وتقييم نمط توزيع طلاب جامعة أم القرى بمكة المكرمة وفقاً للمتوسط العام للعبء الدراسي على مستوى الجامعة والكليات والأقسام العلمية خلال الفترة الممتدة من الفصل الأول 1407 هـ حتى نهاية الثاني 1410 ...
دور كل من رأس المال البشري والمادي في الانتاج دراسة ميدانية
(
Qatar University
, 1994 , Article)
تقوم هذه الورقة باستعراض بعض الجوانب المتعلقة بالمفاضلة بين راًس المال البشري (Human Capital) وراْس المال المادي (Material Capital) واًثر رأس المال البشري على الإنتاج . ومن النتائج التي توصلنا اليها اًن ازدياد راْس المال ...
Flash Point For Binary Mixtures
(
Qatar University
, 1994 , Article)
Three flammable binary systems were studied for flash point as a function of liquid mixture composition: 1) decane/dodecane, 2) 0-xylene/cyclohexanol, and 3) 2-propanol/water. The vapor composition was estimated at each ...
التأويل عند ابن تيمية في سياقه التاريخي
(
Qatar University
, 1994 , Article)
Conductance Measurements in Corrosion Studies of Aluminium
(
Qatar University
, 1994 , Article)
A new method is suggested for studying the rates of dissolution of oxide film on aluminium and its alloys. The method is based on measuring the conductance between two aluminium (or its alloys) electrodes immersed in 3.0 ...
آراء عينة من الطلبة القطريين بشعبتي الأدبي بالمرحلة الثانوية العامة حول أسباب العزوف عن دراسة الرياضيات
(
Qatar University
, 1994 , Article)