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Now showing items 371-380 of 526
On hierarchical network coding versus opportunistic user selection for two-way relay channels with asymmetric data rates
(
IEEE
, 2013 , Article)
We address in this paper the challenge of coping with asymmetric data rates in two-way relay channels. We consider a relay network comprising two sources and one relay. The sources communicate at different rates through ...
An improved performance direct-drive permanent magnet wind generator using a novel single-layer winding layout
(
IEEE
, 2013 , Article)
Direct-drive permanent magnet (PM) generators have become a strong contender in medium and large rating wind energy conversion systems as they not only provide higher efficiency and annual energy production, but also reduce ...
Natural and depleted uranium in the topsoil of Qatar: Is it something to worry about?
(
Elsevier
, 2013 , Article)
This study examines uranium in soils of Qatar to investigate whether there is any detectable traces of depleted uranium (DU). 409 soil samples were collected using a 10km grid system throughout the State of Qatar. The U ...
A voltage-behind-reactance model of five-phase induction machines considering the effect of magnetic saturation
(
IEEE
, 2013 , Article)
Five-phase induction machines are generally modeled using multiple dq planes or using a phase variable model. This paper considers modeling five-phase induction machines using a voltage-behind-reactance (VBR) configuration. ...
On the fairness of resource allocation in wireless mesh networks: A survey
(
Kluwer Academic Publishers
, 2013 , Article Review)
This article presents a comprehensive survey of resource allocation techniques in Wireless Mesh Networks (WMNs). Wireless mesh networks have emerged as a key technology for next generation application specific multi-hop ...
Effective seizure detection through the fusion of single-feature enhanced-k-NN classifiers of EEG signals
(
IEEE
, 2013 , Conference Paper)
Electroencephalogram (EEG) physiological signals are widely used for detecting epileptic seizure. To reduce complexity stemming from the dimensionality problem, EEG signals are often reduced into a smaller set of discriminant ...
Is there a need for a formulary of clinically interchangeable medicines to guide generic substitution in Saudi Arabia?
(2013 , Article)
The escalating healthcare expenditure is a major challenge to sustainability of the healthcare systems. To confront the escalating health expenditure in general and medicines expenditure in particular, many countries ...
السرد العربي القديم: إشكالية المنهج وجدل القراءة - حاشية على مشروع سعيد يقطين (السرد والسرديات في أعمال سعيد يقطين : دراسات - شهادات - حوارات)
(
منشورات ضفاف
, 2013 , Book chapter)
تمثل أعمال الناقد سعيد يقطين مشروعا معرفيا ذا خصوصية بارزة تتمثل في مدونته السردية والنقدية التي تتصف بالإحكام من جهة والتميز من جهة أخرى. فأما وجه الإحكام فيتمثل في حرص سعيد يقطين على الإقامة في دائرة الحقل المعرفي المتجانس ...
A simple active-power control technique for grid-connected three-phase inverters at unity power factor
(
IEEE Computer Society
, 2013 , Conference Paper)
This paper presents a simple active-power control technique for low voltage grid-connected three-phase inverters with zero injected reactive power (unity power factor at grid). Two versions of the proposed controller are ...
Letters To The Editor: Do community pharmacists in Qatar practice rationally for a minor ailment?
(
Society of Hospital Pharmacists of Australia
, 2013 , Article)
[No abstract available]