Results 31 to 40 of about 5,783,133 (347)
Energies, 2021 In this paper, a novel approach to matrix-converter-based variable frequency drives is presented. It is proposed that these drives are used to provide or draw out reactive power from the power distribution line, keeping the power factor close to unit and,
Gytis Petrauskas, Gytis Svinkunas
doaj +1 more source
Can High Frequency Acoustic Waves Heat the Quiet Sun Chromosphere? [PDF]
, 2007 We use Hinode/SOT Ca II H-line and blue continuum broadband observations to study the presence and power of high frequency acoustic waves at high spatial resolution.
Carlsson, Mats +11 more
core +1 more source
Identifying NPP operator stressors using grounded theory
Scientific ReportsNuclear power plant (NPP) operators manage crucial decision-making and operational tasks in precarious and complex environments, where psychological stress directly correlates with system safety and operational efficiency.
Ye Wang +4 more
doaj +1 more source
Energies, 2022 Electric vehicles (EVs) are becoming increasingly popular due to their inexpensive maintenance, performance improvements, and zero carbon footprint.
Ajit Kumar Mohanty +2 more
doaj +1 more source
Power factor control system for ac induction motors [PDF]
, 1981 A power control circuit for an induction motor is disclosed in which a servo loop is used to control power input by controlling the power factor of motor operation.
Nola, F. J.
core +1 more source
High-temperature oxide thermoelectrics
, 2011 We have evaluated the power factor of transition metal oxides at high temperatures using the Heikes formula and the Ioffe-Regel conductivity. The evaluated power factor is found to be nearly independent of carrier concentration in a wide range of doping,
Terasaki, Ichiro
core +1 more source
Morphology controls the thermoelectric power factor of a doped semiconducting polymer. [PDF]
, 2017 The electrical performance of doped semiconducting polymers is strongly governed by processing methods and underlying thin-film microstructure. We report on the influence of different doping methods (solution versus vapor) on the thermoelectric power ...
Chabinyc, Michael L +6 more
core +2 more sources
Results of the Childhood Cancer and Leukaemia Group's United Kingdom Relapsed Wilms Tumour Trial
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background The United Kingdom relapsed Wilms tumour (UKW‐R) trial aimed to improve the historically low survival rates after relapse of Wilms tumour (WT) through a prospective national risk‐stratified protocol. The trial also evaluated efficacy and toxicity of high‐dose melphalan.
Sucheta J. Vaidya +10 more
wiley +1 more source
The Control Scheme of the Multifunction Inverter for Power Factor Improvement
Energies, 2018 Grid-connected photovoltaic (PV) systems require an inverter that allows an efficient integration between the panels and the grid; however, the operation of conventional inverters is limited to the periods of power generation by the panels.
María Reveles-Miranda +5 more
doaj +1 more source
An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]
, 2009 This paper presents an integral battery charger for an electric scooter with high voltage batteries and interior-permanent-magnet motor traction drive.
Armando, Eric Giacomo +2 more
core +2 more sources