بحث بسيط
السجلات المعروضة 91 -- 100 من 559
Burden of diabetes mellitus attributable to demographic levels in Qatar: An emerging public health problem
(
Elsevier Ltd
, 2014 , Article)
Diabetes is one of the main contributors to ill health and premature mortality worldwide and its prevalence has been rising during the last decades. Aim The aim of the present study was to quantify the burden of disease ...
Cognitive relay-sharing by using hierarchical modulation under interference constraints
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
In this paper, we investigate relay-sharing in cognitive radio (CR) networks to improve the secondary user's (SU's) performance in the presence of interference. It is assumed that the relay is shared simultaneously between ...
Stability charts for uniform slopes in soils with nonlinear failure envelopes
(
Elsevier B.V.
, 2014 , Article)
Based on the results of an extensive parametric study, charts were developed for assessment of the stability of uniform slopes in soils with nonlinear shear strength failure envelopes. The study was conducted using envelopes ...
Temperature dependence of the pressure induced monoclinic distortion in the spin S=1/2 Shastry–Sutherland compound SrCu2(BO3)2
(
Elsevier Ltd
, 2014 , Article)
We investigate the monoclinic distortion that occurs at 4.7 GPa at room temperature in the frustrated Shastry-Sutherland model quantum magnet SrCu 2(BO3)2 as a function of pressure and temperature by means of powder and ...
Cooperative cognitive relaying under primary and secondary quality of service satisfaction
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
This paper proposes a new cooperative protocol which involves cooperation between primary and secondary users. We consider a cognitive setting with one primary user (PU) and multIPle secondary users (SUs). The time resource ...
Maximum throughput of a cooperative energy harvesting cognitive radio user
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
In this paper, we investigate the maximum throughput of a saturated rechargeable secondary user (SU) sharing the spectrum with a primary user (PU). The SU harvests energy packets (tokens) from the environment with a certain ...
Output feedback sliding mode control for a linear multi-compartment lung mechanics system
(
Taylor and Francis Ltd.
, 2014 , Article)
In this paper, we develop a sliding mode control architecture to control lung volume and minute ventilation in the presence of modelling system uncertainties. Since the applied input pressure to the lungs is, in general, ...
Methoxy polyethylene glycol-epoetin beta versus darbepoetin alfa for anemia in non-dialysis-dependent CKD: a systematic review
(
Kluwer Academic Publishers
, 2014 , Article Review)
Background Anemia management in non-dialysis-dependent chronic kidney disease (CKD) patients is associated with cardiovascular and cost benefits, slows decline in renal function, and prevents mortality. Different reviews ...
Correlated decay of triplet excitations in the shastry-sutherland compound SrCu2 (BO3)2
(
American Physical Society
, 2014 , Article)
The temperature dependence of the gapped triplet excitations (triplons) in the 2D Shastry-Sutherland quantum magnet SrCu2(BO3)2 is studied by means of inelastic neutron scattering. The excitation amplitude rapidly decreases ...
A new modulation technique for wide-range control of output voltage in Z-source inverters
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Z-source inverter (ZSI) is recently proposed as a single-stage power conversion topology. It adds voltage boost capability for complementing the usual voltage buck operation of the traditional voltage source inverter with ...