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Now showing items 11-20 of 87
Markedly improved CO2 capture efficiency and stability of gallium substituted hydrotalcites at elevated temperatures
(
American Chemical Society
, 2009 , Article)
Potassium carbonate promoted, Ga3+ substituted hydrotalcites reported here exhibit very high, selective and reversible CO2 capture from an exhaust gas mixture. The 10% Ga3+ substitution improved the CO2 capture from 0.3 ...
A cascade of artificial neural networks to predict transformers oil parameters
(2009 , Article)
In this paper artificial neural networks have been constructed to predict different transformers oil parameters. The prediction is performed through modeling the relationship between the insulation resistance measured ...
Islam & the issue of gender
(
International Association of Computer Science and Information Technology, 2009
, 2009 , Conference Proceedings)
Much confusion has developed on the issue of Islam and gender, Islam as a religion is seen to give preference to one gender over the other. This has been particularly realized in dealing with issues which are of concern ...
Synthesis, spectroscopic and thermal structural investigations of the charge-transfer complexes formed in the reaction of 1-methylpiperidine with σ- and π-acceptors
(
Elsevier B.V.
, 2009 , Article)
The reactions of the electron donor 1-methylpiperidine (1MP) with the π-acceptors 7,7,8,8-tetracyanoquinodimethane (TCNQ), tetracyanoethylene (TCNE), 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), 2,3,5,6-tetrachloro-1,4 ...
Voluntary disclosure in the annual reports of an emerging country: The case of Qatar
(
Elsevier Ltd
, 2009 , Article)
This study sets out to examine empirically the determinants of voluntary disclosure in the annual reports of 25 listed firms of Doha Securities Market (DSM) in Qatar forming approximately 86% of the total firms incorporated ...
أصول المنهج العلمي وأساليبه في السنة النبوية : دراسة مقارنة بين كتاب العلم من صحيح البخاري ومعطيات مناهج البحث العلمي المعاصر
(
دار البصائر للطباعة والنشر والتوزيع
, 2009 , Article)
إن تخلف المسلمين عن ركب الحضارة هو الدافع وراء كتابة هذا البحث فمن الضروري أن يقف كل مسلم علي أسباب تقدم الأجداد من المسلمين في مجالات البحث العلمي ومعرفة أسباب قوتهم؛ فبدأ البحث بتمهيد وهو الحديث عن اهتمام القرآن بالعلم؛ ...
Chip-Level Modulated BPPM Fiber-Optic Code Division Multiple Access
(
IEEE
, 2009 , Conference Paper)
Chip-Level Modulated Binary Pulse Position Modulation (CLM-BPPM) is proposed as a modulation scheme for Fiber-Optic Code Division Multiple Access (FO-CDMA) systems using Optical Orthogonal Code (OOC) for time domain signal ...
An efficient technique for finding the eigenvalues of fourth-order Sturm–Liouville problems
(
Elsevier
, 2009 , Article)
In this paper, we will develop a numerical technique for finding the eigenvalues of fourth-order non-singular Sturm–Liouville problems. We used the variational iteration methods as a basis for this technique. Numerical ...
Synthesis, spectroscopic, thermal and structural investigations of charge-transfer complexes of 4,4′-trimethylenedipiperidine with chloranil, TBCHD, DDQ, TCNQ and iodine
(
Elsevier
, 2009 , Article)
The charge-transfer interactions between the electron donor 4,4′-trimethylenedipiperidine (TMDP) and the acceptors 2,3,5,6-tetrachloro-1,4-benzoquinone (chloranil), 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TBCHD), ...
Handling data uncertainties in event tree analysis
(
Elsevier B.V.
, 2009 , Article)
Event tree analysis (ETA) is an established risk analysis technique to assess likelihood (in a probabilistic context) of an accident. The objective data available to estimate the likelihood is often missing (or sparse), ...