Results 21 to 30 of about 20,105,129 (333)
Analysis of Preload of Three-Stator Ultrasonic Motor
Micromachines, 2021 The pre-pressure device of the ultrasonic motor plays a vital role in the design of the entire motor structure, the contact state of the stator and rotor of the motor, dynamic properties of the stator, friction and wear characteristics of the rotor; even
Zheng Li +4 more
doaj +1 more source
Output Characteristics of Graphene Field Effect Transistors
Приборы и методы измерений, 2020 The use of graphene, which has high mobility of charge carriers, high thermal conductivity and a number of other positive properties, is promising for the creation of new semiconductor devices with good output characteristics. The aim was to simulate the
V. N. Mishchenka
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Frontiers in Energy Research, 2022 Wind and photovoltaic (PV) power generation and other distributed energy sources are developing rapidly. But due to the influence of the environment and climate, the output is very unstable, which affects the power quality and power system stability ...
Yan Ren +4 more
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Effect of the Shape of Stator Blades on the Performance Output of a Vertical Axis Marine Current Turbine [PDF]
, 2013 Due to the diminishing reserves of fossil fuels and increased pollution from exploitation of these fuels, the world is focusing on the renewable energy sources.
Ubbi, Kuldip +2 more
core +3 more sources
The Journal of Engineering, 2019 In the wireless power transfer system, the front stage power supply is used to efficiently transfer power to the post-stage circuit. As a bridge connecting the front stage power supply and the rear stage circuit of the wireless power transmission system,
WenRui Liu +4 more
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Research on the Output Characteristic of a New Water Hydraulic Electrohydraulic Motor
IEEE Access, 2023 For the hydraulic drilling tool under deep water, an integrated structure of a water hydraulic electrohydraulic motor is proposed, which consists of three parts: pump unit, motor unit, and DC brushless motor.
Tong Xing +3 more
doaj +1 more source
Ion-Doped Photonic Crystal Fiber Lasers
Frontiers in Chemistry, 2021 Compared with conventional solid-state lasers, fiber lasers have the advantages of small size, simple cooling system, and good output beam quality, enabling them an extended service lifetime in industrialized environments.
Ya-Chong Hou +15 more
doaj +1 more source
Energies, 2019 In this paper, a steady-state matrix analysis method is introduced to analyze the output characteristics of the class-E power amplifier used in a wireless power transfer (WPT) system, which takes the inductance resistance, on-resistance and leakage ...
Feng Wen, Rui Li
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Erbium:ytterbium co-doped large-core fiber laser with 297W continuous-wave output power [PDF]
, 2007 We have demonstrated a high-power and high-efficiency erbium:ytterbium (Er:Yb) co-doped fiber laser that produces 297 W of continuous-wave output at 1567 nm.
Nilsson, J. +23 more
core +1 more source
Alternative efficiency measures for multiple-output production [PDF]
, 2005 This paper has two main purposes. Firstly, we develop various ways of defining efficiency in the case of multiple-output production. Our framework extends a previous model by allowing for nonseparability of inputs and outputs.
Fernandez, Carmen +2 more
core +4 more sources