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Now showing items 141-149 of 149
Evidence by ac-conductivity for the higher mobility of boron (over aluminium)-associated Brønsted sites in boron-modified HZSM-5
(
Elsevier
, 1996 , Article)
A correlation ac-conductivity analysis is performed at 102–105 Hz, 373–613 K and 0.8 V for characterizing the effect of increasing boron incorporation in HZSM-5 lattice on altered electric features in BZSM-5 samples of ...
أثر استخدام التغذية الراجعة على تنمية كفاءة طلاب العلوم بكلية التربية لأداء التجارب المعملية بواسطة التعليم المصفر
(
Qatar University
, 1996 , Article)
هدفت الدراسة الحالية إلى محاولة التعرف على أثر استخدام التغذية الراجعة الممثلة في مشاهدة التسجيل التصويري وتوجيهات المعلم والزملاء على تنمية كفاءة الطلاب لأداء التجارب المعملية وذلك باستخدام التعليم المصغر.
تكونت عينة ...
الكفاءة القوامية للقدمين وعلاقتها ببعض المهارات الحركية الأساسية للتلاميذ بالمرحلة الاتدائية بدولة قطر
(
Qatar University
, 1996 , Article)
Spore Colour Index And Organic Thermal Maturation Studies On The Pliocene Sediments Of The El Qara-2 Borehole, Nile Delta Area, Egypt
(
Qatar University
, 1996 , Article)
Eight conventional core samples from the El Qara-2 well, situated in north central Nile Delta area, Egypt, have been palynologicaly investigated for determining the thermal maturity of the Pliocene Abu Madi and Kafr El ...
Purification and characterization of an extracellular phenol oxidase from culture filtrates of Pyricularia oryzae
(
NRC Research Press
, 1996 , Article)
Extracellular phenol oxidase activity was characterized and compared in Pyricularia oryzae wild-type and albino cell types to determine if this phenol oxidase was responsible for lack of melanization in the albino culture. ...
Coupled vector-scalar potential method for 3D magnetostatic field computations using hexahedral finite elements
(
IEEE
, 1996 , Article)
This paper introduces a three dimensional finite element (3D-FE) method based on a coupled vector-scalar potential formulation. The method is most suited for large-scale magnetostatic field applications containing mixed ...
Three-dimensional finite element analysis of permanent magnet brushless DC motor drives - Status of the state of the art
(
IEEE
, 1996 , Article)
This paper reviews recent advances in the state of the art of applying three-dimensional finite-element (3-D-FE) magnetic field computation techniques to the analysis and quantification of parameters and performance of ...
Kinetic Determination of Morphine in Illicit Powders, Using a Fluoride Selective Electrode, Based on Reaction with 1-Fluoro-2,4-dinitrobenzene
(
Springer New York
, 1996 , Article)
A simple, accurate and selective method is described for the determination of morphine in illicit powders, based on monitoring the initial rate of fluoride ion liberation from the reaction of morphine with 1-fluoro-2,4-d ...
Eutrophication in the coastal waters of Alexandria following the increase in phosphorus load
(
Parlar Scientific Publications
, 1996 , Article)
Samples from the coastal waters of Alexandria during 1991-1993 indicate a remarkable increase in the phosphorus load from 870 to 1140 kg y-1 compared to 567 kg y-1 in 1986 raising the average phosphorus from 1.01 to 1.47 ...