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Now showing items 101-110 of 324
Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization
(
Elsevier
, 2012 , Article)
This study investigates the potential of using the geothermal energy from abandoned oils in a novel three-loop system; geothermal, power and cooling loops to produce cooling effect. The geothermal loop drives the power and ...
Ubiquitous monitoring system for critical cardiac abnormalities
(
Springer
, 2012 , Book chapter)
In many critical cardiac abnormalities, it is desirable to have a monitoring system that can keep a constant surveillance on the conditions of the heart and its related patterns. This can be very convenient in clinical ...
A design example of an 8-pole radial AMB for flywheel energy storage
(
IEEE
, 2012 , Conference Paper)
High speed flywheel energy storage systems normally use magnetic bearings to reduce friction loss. Bearing load consists of radial forces with or without axial forces according to drive configuration and requirements. The ...
On the development of flywheel storage systems for power system applications: A survey
(
IEEE
, 2012 , Conference Paper)
Energy storage systems cannot be considered energy sources but having the ability of storing and discharging energy. They have a vital rule in the reliability and power quality of power systems. There are several energy ...
Association of lipid profile and waist circumference as cardiovascular risk factors for overweight and obesity among school children in Qatar
(
Dove Medical Press
, 2012 , Article)
Background: Childhood obesity is a national as well as worldwide problem. The aim of this study was to evaluate the association of overweight and obesity among Qatari children with lipid profile and waist circumference as ...
Modeling and controller design of quasi-Z-Source inverter with battery based photovoltaic power system
(
IEEE
, 2012 , Article)
A Photovoltaic (PV) power generation system based on quasi-Z-Source inverter (qZSI) with energy storage is presented. A dynamic small-signal model of qZSI with battery is established. Further, the battery power and current ...
The carbon conundrum: GCC perspectives
(
Hamad bin Khalifa University Press (HBKU Press)
, 2012 , Article)
The solution to the carbon conundrum does not seem to be within reach in the short or medium term, despite significant advances and knowledge gains in demonstration scale CCS facilities. This stems from the fact that ...
Novel oral formulations of metformin in semi-solid matrices: Design, characterization and in vitro dissolution testing
(
Hamad bin Khalifa University Press (HBKU Press)
, 2012 , Conference Paper)
Objectives: To formulate and evaluate oral dosage forms of metformin hydrochloride (MH) having sustained-release properties that would also increase MH bioavailability and address the shortcomings in the currently marketed ...
A wind turbine architecture employing a new three port magnetic gear box
(
IEEE Computer Society
, 2012 , Conference Paper)
Mechanical gearboxes are typically employed with doubly-fed induction generator based wind turbines to convert the turbine's low speed mechanical power into high-speed mechanical power to drive the electrical generator. ...
Elimination of reverse recovery effects associated with CoolMOS devices employing current source inverter topology
(
IET
, 2012 , Conference Paper)
MOSFET transistors are continuously being an essential part of power electronic converters due to their low switching losses at high switching frequencies. However, the traditional power MOSFET suffers from a relatively ...