Results 31 to 40 of about 5,760,690 (297)

On the Power Efficiency of Sensory and Ad Hoc Wireless Networks [PDF]

open access: yes, 2006
We consider the power efficiency of a communications channel, i.e., the maximum bit rate that can be achieved per unit power (energy rate). For additive white Gaussian noise (AWGN) channels, it is well known that power efficiency is attained in the low ...
Dana, Amir F., Hassibi, Babak
core   +2 more sources

Facile Solution Synthesis, Processing and Characterization of n- and p-Type Binary and Ternary Bi–Sb Tellurides

open access: yesApplied Sciences, 2020
The solution synthesis route as a scalable bottom-up synthetic method possesses significant advantages for synthesizing nanostructured bulk thermoelectric (TE) materials with improved performance.
Bejan Hamawandi   +9 more
doaj   +1 more source

An Integral Battery Charger with Power Factor Correction for Electric Scooter [PDF]

open access: yes, 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

Application of Matrix VFD for Power Factor Improvement in LED Lighting Sources Loaded Power Distribution Lines

open access: yesEnergies, 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

Morphology controls the thermoelectric power factor of a doped semiconducting polymer. [PDF]

open access: yes, 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

Identifying NPP operator stressors using grounded theory

open access: yesScientific Reports
Nuclear 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

Parent‐to‐Child Information Disclosure in Pediatric Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite professional consensus regarding the importance of open communication with pediatric cancer patients about their disease, actual practice patterns of disclosure are understudied. Extant literature suggests a significant proportion of children are not told about their diagnosis/prognosis, which is purported to negatively ...
Rachel A. Kentor   +12 more
wiley   +1 more source

The Control Scheme of the Multifunction Inverter for Power Factor Improvement

open access: yesEnergies, 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

Fuzzy-Based Simultaneous Optimal Placement of Electric Vehicle Charging Stations, Distributed Generators, and DSTATCOM in a Distribution System

open access: yesEnergies, 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]

open access: yes, 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

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