Search
Now showing items 1-10 of 2591
Properties of a three-dimensionally ordered macro-mesoporous carbon-doped TiO2 composite catalyst
(
World Scientific Publishing
, 2013 , Article)
This study aimed to develop an effective, environmentally benign composite catalyst composed of carbon materials and titanium dioxide (TiO2). Carbon-doped titanium dioxide (C-TiO2) was prepared by coating TiO2 onto ...
Impact of phytolacca Americana extracts on gene expression of colon cancer cells
(
John Wiley & Sons, Ltd
, 2014 , Article)
Native Americans have used Phytolacca americana to treat breast ailments, gastrointestinal disorders, rashes, and inflammation. Some anti-cancer and anti-viral research has been reported on this perennial herb, but none ...
استخدام الصحفيين القطريين لشبكات التواصل الاجتماعي- دراسة لحصار دولة قطر
(
Rota Career
, 2018 , Article)
سعت هذه الدراسة إلى تقصي كيفية توظيف الصحفيين القطريين لشبكات التواصل الاجتماعي، في إطار جهودهم الإعلامية لمواجهة الحصار المفروض على بلادهم منذ 5 يونيو 2017، والأدوار المتبادلة بين وسائل الإعلام التقليدية من ناحية؛ وشبكات ...
The Influence of Cation Substitution on the Magnetic Behaviour of Magnesium Ferrite
(
WILEY-VCH Verlag GmbH & Co.
, 1989 , Article)
New polycrystalline specimens of the ferrites Mg1.5Fe1Si0.5O4, Mg1.5Fe1Ge0.5O4, Mg1.5Fe1Ti0.5O4 and Mg1.66Fe1Sb0.33O4 have been prepared and studied by nuclear gamma ray resonance technique, over a wide temperature range. ...
Application of Homotopy Perturbation Method to Singularly Perturbed Volterra Integral Equations
(
Asian Network for Scientific Information
, 2008 , Article)
In this study, the Homotopy-Perturbation Method (HPM) proposed by J.-H. He is adopted for solving singularly perturbed Volterra integral equations (SVIEs). Three numerical examples are given to demonstrate the effectiveness ...
Estimation of Pr(X ≤ Y) using record values in the one and two parameter exponential distributions
(
Taylor & Francis
, 2008 , Article)
Abstract
We consider the problem of estimating the stress-strength reliability when the available data is in the form of record values. The one parameter and two parameters exponential distribution are considered. In the ...
المياه المعبأة في دولة قطر مع دراسة سلوك مستهلكيها
(
Qatar University
, 2005 , Article)
يهدف البحث إلى التعرف على وقع صناعة المياه المِعبأة في دولة قطر وتجارتها وكذلك جودتها مقارنة مع مياه الشبكة العامة. وًمن بين الأهداف أيضا درًاسة سلوك مستهلكيها وتبني خطة لتطوير صناعتها. وقد اعتمد الباحثان على مصادر بيانات ...
Unpublished Material from the Arab Museum of Modern Art at Qatar—Doha I
(
American Research Center in Egypt
, 2011 , Article)
The aim of this article is to shed light on a decorated canopic box with four inscribed canopic jars.
The box with its jars are among a corpus of Ancient Egyptian materials housed in the Arab Museum
of Modern Art at Doha, ...
On the preparation of electron sensor using LiRbSO4 samples
(
WILEY-VCH Verlag GmbH & Co.
, 2005 , Article)
The dielectric spectroscopy of metal�metal sulfate LiRbSO4 samples are described with particular emphasis on sensor performance to be used in the field of radiation. The obtained results as the effect of different electron ...
TESTING SYMMETRY USING A TRIMMED LONGEST RUN STATISTIC
(
Blackwell Publishing Asia Pty Ltd.
, 2007 , Article)
A distribution-free test is proposed for the symmetry of a continuous distribution about a specified median. The test is based on a longest run statistic on the upper portion of the sequence of ordered �centred� observations ...