Results 61 to 70 of about 23,320 (286)
APPLICATION OF CURVE FITTING TECHNIQUES USING SOFT COMPUTING TECHNIQUES (GA, GSA, POS AND NR) IN MULTILEVEL INVERTERS FOR HARMONIC MINIMIZATION [PDF]
Journal of Engineering Science and Technology, 2017 With the advent of low cost and powerful computers, the soft computing (SC) approach seems to be a better approach and well suited to handle the complexity of the HEPWM problem.
VARSHA SINGH +2 more
doaj
Advanced Functional Materials, EarlyView.Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp +7 more
wiley +1 more source
Performance Evaluation of Eleven-Phase Induction Machine with Different PWM Techniques
The Journal of Engineering Research, 2015 Multiphase induction machines are used extensively in low and medium voltage (MV) drives. In MV drives, power switches have a limitation associated with switching frequency.
M.I. Masoud, A.S. Abdelkhalik
doaj +1 more source
Selective Harmonic Mitigation Technique for High-Power Converters [PDF]
, 2010 In high-power applications, the maximum switching frequency is limited due to thermal losses. This leads to highly distorted output waveforms. In such applications, it is necessary to filter the output waveforms using bulky passive filtering systems. The
Aguirre Echanove, Miguel Ángel +4 more
core
Advanced Functional Materials, EarlyView.Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam +14 more
wiley +1 more source
Combination method of selective harmonic control for cascaded H-bridge multilevel inverter
Gong-kuang zidonghua, 2013 In view of problem of low frequency harmonic in step voltage waveform of output of cascaded H-bridge multilevel inverter, a combination method of selective harmonic control was proposed.
GE Guang-jun, WANG Xi, SUN Bing-hai
doaj
Noise-Free Measurement of Harmonic Oscillators with Instantaneous Interactions
, 2007 We present a method of measuring the quantum state of a harmonic oscillator through instantaneous probe-system selective interactions of the Jaynes-Cummings type.
Giedke, G. +2 more
core +1 more source
Switched-battery boost-multilevel inverter with GA optimized SHEPWM for standalone application [PDF]
, 2016 This paper presents a boost-multilevel inverter design with integrated battery energy storage system for standalone application. The inverter consists of modular switched-battery cells and a full-bridge.
Chu, Bing +4 more
core +1 more source
Advanced Functional Materials, EarlyView.A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee +8 more
wiley +1 more source
On abolishing symmetry requirements in the formulation of a five-level selective harmonic elimination pulse-width modulation technique [PDF]
, 2006 Selective harmonic elimination pulse width modulation (SHE-PWM) techniques offer a tight control of the harmonic spectrum of a given voltage waveform generated by a power electronic converter along with a low number of switching transitions.
Agelidis, V.G. +2 more
core +1 more source