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A low-cost closed-loop solar tracking system based on the sun position algorithm
(
Hindawi Limited
, 2019 , Article)
Sun position and the optimum inclination of a solar panel to the sun vary over time throughout the day. A simple but accurate solar position measurement system is essential for maximizing the output power from a solar panel ...
Novel design for thermal management of PV cells in harsh environmental conditions
(
MDPI AG
, 2018 , Article)
The abundance of solar energy is a blessing in the Arabian Peninsula, where more than 2000 kWh/m2 density has been recorded annually. This has resulted in sincere consideration of PV harvesting in the energy matrix and ...
An investigation into the efficiency of silicon carbide based power inverters
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
In this work, a study of a silicon carbide power modules in power inverter is presented. Voltage/Current/power and switching energy loss characteristics based on experimental data are detailed. A comparative study of total ...
The relationship between evidence characteristics and audit efficiency and effectiveness: Evidence from Middle Eastern countries
(
Inderscience Enterprises Ltd.
, 2019 , Article)
This paper investigates the relationship between three evidence characteristics (namely, sufficiency, reliability, relevance) and audit quality. We employ a multi-method approach that is broken down into two tools; ...
Power factor correction converters with continuous input and output currents for battery chargers in data centers: Performance assessment
(
Institute of Electrical and Electronics Engineers Inc.
, 2019 , Conference Paper)
In this paper, the performance of two types of DC-DC converters namely ?uk and Boost-Buck converters is assessed for battery charging systems. Operation with power factor correction for the input side AC current, and ...
Sponsorship and Donations in Qatar Foundation: An Empirical Investigation to the Foundation’s Fundraising Efforts
(2020 , Professional Masters Project)
Non-government organizations have historically been financially challenged, and recent developments have been underway to explore innovative fundraising and financially sustainable solutions. Within Qatar, Qatar Foundation ...
Doubly dual nature of ammonium-based ionic liquids for methane hydrates probed by rocking-rig assembly
(
Royal Society of Chemistry
, 2016 , Article)
This work presents a systematic study of methane hydrate inhibition in the presence of five structurally variable ionic liquids (ILs) belonging to the ammonium family—viz., tetra-alkylammonium acetate (TMAA), choline ...
Microencapsulation of calcium nitrate for concrete applications
(
National Research Council
, 2016 , Article)
The use of encapsulating healing agents that allow the self-healing of concrete has emerged as a potential solution to the current decay and costly maintenance of concrete infrastructure; however, many healing agents are ...
Removal of emerging pharmaceuticals from wastewater by ozone-based advanced oxidation processes
(
John Wiley and Sons Inc.
, 2016 , Article)
Thin-ply composites are currently receiving specific attention from researchers due to their capabilities to delay matrix cracking. In this paper, the aim is to design a hybrid laminate that contains both thin- and normal ...
Optimization of effective area spectral efficiency for wireless communications systems under Nakagami-m fading channels
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
In this paper, we present an optimization of the effective area spectral efficiency (EASE) metric for point-to-point transmission systems, and decode-and-forward (DF) relaying communications networks under Nakagami-m fading ...