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السجلات المعروضة 881 -- 890 من 895
Salt water corrosion resistance of electrodeposited Ni-layered silicate nanocomposite coatings from Watts' type solution
(
Elsevier B.V.
, 2014 , Article)
Pure nickel and nickel-montmorillonite (Ni-MMT) composite coatings were produced using pulse current electrodeposition from Watts' type solution. Experimental results show that the codeposition of MMT particles into the ...
Modelling and analysis of a three-phase to five-phase transformer
(
Walter de Gruyter GmbH
, 2014 , Article)
Multi-phase systems are the focus of research in recent times due to their inherent advantages compared to the three-phase counterpart. A lot of research effort has been put to develop commercially feasible multi-phase ...
High performance backstepping control of a fivephase induction motor drive
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Multiphase electric drives have been investigated and proposed for applications where the highest overall system reliability and the reduction in the total power per phase are required. This paper deals with the high ...
Finite set model predictive current control with reduced and constant common mode voltage for a five-phase voltage source inverter
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Multiphase drives are now becoming serious competitor to traditional three-phase drives due to reasons of better fault tolerant property and reduced per-phase converter rating that are especially suited to high power drives ...
Common-mode voltage control through vector selection in three-to-five phase matrix converter
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Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
Multi-phase matrix converters (more than three phase) are distinctively advantageous as because of reduced per-phase current and unity power factor operation. The electrical motors supplied through these converters do have ...
Space vector pulse width modulation scheme for three to seven phase direct matrix converter
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Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
In this paper a generalized multi-phase space vector theory is considered for developing the space vector modulation of a three-phase to seven-phase direct matrix converter (DMC). The modulation is based on the control of ...
Polyaniline/polyvinyl alcohol blends: Effect of sulfonic acid dopants on microstructural, optical, thermal and electrical properties
(
Elsevier
, 2014 , Article)
This correspondence reports the preparation and performance of different polyaniline–polyvinyl blends (PANI–PVA) doped with sulfonated acids. PANI is prepared by in situ dispersion polymerisation, and a subsequent extensive ...
Reduced erbium-doped ceria nanoparticles: One nano-host applicable for simultaneous optical down- and up-conversions
(
Springer Nature
, 2014 , Article)
This paper introduces a new synthesis procedure to form erbium-doped ceria nanoparticles (EDC NPs) that can act as an optical medium for both up-conversion and down-conversion in the same time. This synthesis process results ...
Control of contagious bovine pleuropneumonia: Knowledge, attitudes, perceptions and practices in Narok district of Kenya
(
Elsevier
, 2014 , Article)
CBPP is an important transboundary disease in sub-Saharan Africa whose control is urgent. Participatory data collection involving 52 focus group discussions in 37 village clusters and key informant interviews, a cross-sectional ...
Willingness to pay for contagious bovine pleuropneumonia vaccination in Narok South District of Kenya
(
Elsevier
, 2014 , Article)
Contagious bovine pleuropneumonia (CBPP) is an economically important trans-boundary cattle disease which affects food security and livelihoods. A conjoint analysis-contingent valuation was carried out on 190 households ...