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Novel charge transfer complexes of the donor 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16-hexaazacyclooctadecane and the acceptors iodine, TCNE, and TCNQ
(
Elsevier
, 2011 , Article)
Abstract Novel charge transfer complexes have been formed in the reaction of the interesting powerful electron donor 1,4,7,10,13,16-hexamethyl-1,4,7,10,13,16-hexaazacyclooctadecane (HMHACOD) with σ-electron acceptor iodine ...
الطبيعة القانونية لعقد احتراف لاعب كرة القدم (دراسة فى ضوء العقد النموذجي المعد من قبل الاتحاد القطري لكرة القدم)
(
وزارة العدل - دولة قطر
, 2011 , Article)
تشهد دولة قطر تقدما ملحوظا على كافة الأصعدة، ولعل من أهم المجالات التى شهدت طفرة كبيرة فى الآونة الأخيرة، مجال النشاط الرياضي، ولعل النجاح الباهر الذى حظيت به دولة قطر من استحقاقها الفوز بتنظيم مسابقة كأس العالم لكرة القدم ...
Book Review: Visual interventions: applied visual anthropology--Edited by Sarah Pink
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Blackwell Publishing Ltd
, 2011 , Book Review)
Pharmacy student perceptions of public health service roles and responsibilities
(
Blackwell Publishing Ltd
, 2011 , Article)
Background There is increasing emphasis on pharmacists' assuming responsibility for public health promotion and delivery with formal expansion of public health activities in their practice. A number of pharmacy school ...
High-performance adaptive Perturb and observe MPPT technique for photovoltaic-based microgrids
(
IEEE
, 2011 , Article)
Solar photovoltaic (PV) energy has witnessed double-digit growth in the past decade. The penetration of PV systems as distributed generators in low-voltage grids has also seen significant attention. In addition, the need ...
Multiple-module high-gain high-voltage DCDC transformers for offshore wind energy systems
(
IEEE
, 2011 , Article)
Renewable energy sources, such as offshore wind farms, require high voltage gains in order to interface with power transmission networks. These conversions are normally made using bulky, complex, and costly transformers ...
Comparative evaluation of four quasi-square wave fed multiphase induction machines
(
IEEE
, 2011 , Conference Paper)
Multiphase winding structures provide induction machines with favorable fault tolerant characteristics. Medium voltage drives have also benefited from the favorable application characteristics of multiphase machines, as ...
Assessment of fault-ride through capability of grid-connected brushless DFIG wind turbines
(
Institution of Engineering and Technology
, 2011 , Conference Paper)
DFIGs are reported to suffer serious reliability problems due to the presence of slip-rings, brushes and gearbox. These disadvantages encouraged several research groups to investigate the viability of employing single-frame ...
Single phase grid connected current source inverter: Mitigation of oscillating power effect on the grid current
(
Institution of Engineering and Technology
, 2011 , Conference Paper)
Although voltage source inverters (VSIs) are the most common DC-AC grid-tied converters, current source inverters (CSIs) are considered to be promising candidate, thanks to their low THD voltages/currents and inherent ...
A modified stationary reference frame-based predictive current control with zero steady-state error for LCL coupled inverter-based distributed generation systems
(
IEEE
, 2011 , Article)
This paper proposes a modified stationary reference frame-based predictive current controller with zero steady-state error for LCL coupled inverter-based distribution generation systems. Analytical expressions for the ...