بحث بسيط
السجلات المعروضة 21 -- 30 من 17466
Fixed Point Theorems in Topological Spaces
(
Qatar University
, 2000 , Article)
A couple of theorems for a pair of self-maps on a topological space have been obtained using which certain fixed point theorems in the literature for pairs of maps satisfying contractive type conditions have been deduced.
In ...
An Extension of the Szasz-Mirakyan Operator on the Whole Real Axis
(
Qatar University
, 2000 , Article)
The aim of this paper is to present a new extension of the Szasz-Mirakyan operator n the whole real axis, and to give its convergent approximation theorem.
Ophioglossum polypyllum, A. Braun a new record for Qatar
(
Qatar University
, 1995 , Article)
Observations on some hydrochemical aspects of the United Arab Emirates waters along the Arabian Gulf and the Gulf of Oman.
(
Qatar University
, 1997 , Article)
Surface and bottom water samples were collected from the United Arab Emirates waters along the Arabian Gulf and the Gulf of Oman during the period from October 1993 to September 1995. Samples were analyzed for temperature ...
Abscisic acid, relative water content and water use efficiency of wheat plants In relation to grain pretreatment by phytohormones and irrigation with sea water
(
Qatar University
, 1999 , Article)
Irrigation of wheat plants with sea water (10% and 25%) led to significant increase in free and bound ABA in the leaves, especially at 25%. The relative water content (RWC) of the sea water irrigated plants was either ...
Heterocyclic Aminoacrylate Esters Of Potential Biological Activity
(
Qatar University
, 1985 , Article)
This work describes the synthesis of N-substituted piperidyl 2-benzoxazole acrylates (la-d); 2-benzothiazole acrylates (2a-d); 2-furyl acrylates (3a-d) and 2-thiophene acrylates (4a-d). The esters of 3-quinuclidyl (Ie, 2e, ...
Evaluation of quaternary aquifer between qena and luxur. (Nile Valley, Egypt)
(
Qatar University
, 2001 , Article)
In order to evaluate the hydrogeological setting of the Quaternary aquifer and the related geological structures controlling its characteristics. A total of 50 vertical electrical soundings (VES.s) were conducted along 13 ...
أثر دراسة مساق قواعد الكتابة ومهارتها المختلفة على معرفة وفهم مواطن علامات الترقيم واستخدامها لدى طلبة معلم الصف في جامعة اليرموك
(
Qatar University
, 2000 , Article)
هدفت الدراسة إلى تحديد أثر دراسة مساق قواعد الكتابة ومهاراتها المختلفة علي معرفة الطلبة لمواطن علامات الترقيم واستخدامه. واستخدم في الدراسة اختبار من جزأين، أكد الجزء الأول على مواطن علامات الترقيم الأكثر شيوعاً، وأكد الجزء ...
Modeling, simulation and control of a scheibel liquid–liquid contactor: Part 1. Dynamic analysis and system identification
(
Elsevier B.V.
, 2004 , Article)
The liquid–liquid extraction process is well-known for its complexity and often entails intensive modeling and computational efforts to simulate its dynamic behaviour. However, rigorous mathematical models are usually ...
مع طه حسين في كتابه الشيخان : نقد و توثيق
(
Qatar University
, 1988 , Article)