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Now showing items 1431-1440 of 1470
Use of Mathcad as a teaching and learning tool for reinforced concrete design of footings
(
John Wiley & Sons, Inc.
, 1999 , Article)
Owing to their nature, numerous and complex equations are commonly used in the design of reinforced concrete structures. This is because of the nature of reinforced concrete design. Mathcad, which possesses efficient ...
Open-ended cloze procedure and multiple - choice cloze procedure: similarties and differences
(
Qatar University
, 1991 , Article)
This paper is a validation of two cloze procedures: Open-Ended and Multiple-Choice (henceforth OE and MC respectively). Open-Ended and Multiple-Choice tests on the same text were administered to 60 English majors in their ...
موسوعة المعلومات القطرية
(
جامعة قطر
, 1998 , Book)
لقد أثبتت التجارب والدراسات أن نهضة المجتمعات وتنميتها تستجيب ، في غالب
الأحيان ، إلى مؤشراتها الاجتماعية والإنسانية والاقتصادية والعلمية والتقنية.
فالمجتمع، لكي يحافظ على هويته ويلعب دوره الحضاري ويشارك في صياغة ...
التنمية الصناعية في قطر و الخليج
(
نظام الشافعي
, 1999 , Book)
الحمد لله أن وفقني لاتمام تأليف هذا الكتاب الذي اتى بعد ست سنوات من
تدريس مقرر (( التنمية الصناعية في قطر والخليج )) في جامعة قطر كمقرر
اختياري عام لجميع طلاب وطالبات الجامعة ، ومقرر اجباري لطلاب الجغرافيا
والتخطيط بكلية ...
Radon concentration determination in some dwellings of Doha city of Qatar
(
Elsevier
, 1997 , Article)
Yearly average radon concentrations have not been reported yet in Qatar. Only few measurements on indoor radon concentrations have been conducted during the autumn season in 1992. To complete these measurements a determination ...
Positron annihilation lifetime study of pure and treated polyvinyl chloride
(
scientific.net
, 1997 , Article)
Positron annihilation lifetime technique (PAL) has been applied to investigate the behavior of the free volume in pure and doped polyvinyl chloride (PVC) as a function of Pb concentration and temperature. It is noticed ...
A coupled vector-scalar potential method for permanent magnet modeling in large-scale 3D-FE magnetic field computations
(
IEEE
, 1993 , Article)
This paper introduces a magnetic scalar potential (MSP) formulation to model permanent magnet volumes. This formulation is suited for use in coupled vector-scalar magnetic potential (CMVP-MSP) 3D-FE computations of large-scale ...
An Adaptive Newton-Raphson Technique for Combined Vector-Scalar Potential Solutions of Large Scale 3D Magnetic Field Problems Involving Anisotropic Materials
(
IEEE
, 1993 , Article)
In general, magnetic field problems in electrical devices and machines are of nonlinear nature due to magnetic saturation in their ferrous cores. In the combined magnetic vector-magnetic scalar potential (MVP-MSP) method ...
Modeling and experimental verification of the performance of a skew mounted permanent magnet brushless DC motor drive with parameters computed from 3D-FE magnetic field solutions
(
IEEE
, 1994 , Article)
This paper contains a comparison between actual laboratory-measured performance of a brushless dc motor drive system, with skewed permanent magnet mounts on its rotor, and two computer-simulated motor drive system performance ...
Teaching Electric Machinery and Associated Electromagnetic Fields-A Case for the Benefits of Academic Computing
(
IEEE
, 1993 , Article)
This paper describes three broad categories of benefits resulting from use of and access to personal computers (PCs) and work stations (WSs) in teaching electric machines and drives. This includes all the electromagnetic ...