Results 21 to 30 of about 708,578 (251)

Frequency pulling and mixing of relaxation oscillations in superconducting nanowires [PDF]

open access: yes, 2017
Many superconducting technologies such as rapid single flux quantum computing (RSFQ) and superconducting quantum interference devices (SQUIDs) rely on the modulation of nonlinear dynamics in Josephson junctions for functionality.
Berggren, Karl K.   +3 more
core   +2 more sources

Temperature distribution characteristics and heat defect judgment method based on temperature gradient of suspended composite insulator in operation

open access: yesIET Generation, Transmission & Distribution, 2021
In order to solve the problem of determining the heating suspended composite insulators in transmission lines, infrared tests for composite insulators newly put into operation and with heat defect were conducted.
Te Li   +5 more
doaj   +1 more source

Detection of high k turbulence using two dimensional phase contrast imaging on LHD [PDF]

open access: yes, 2016
High k turbulence, up to 30 cm(-1), can be measured using the two dimensional CO₂ laser phase contrast imaging system on LHD. Recent hardware improvements and experimental results are presented.
Akiyama, T.   +7 more
core   +1 more source

HEATING CHARACTERISTICS OF SOFTWOODS IN A HIGH FREQUENCY FIELD [PDF]

open access: yesPro Ligno, 2012
The research aimed to establish whetherdielectric heating at radio frequencies might be afeasible option for phytosanitation of green softwoodboards. Results are presented for two softwoodspecies, namely, lodgepole pine (Pinus contorta) andwestern red ...
Ciprian LĂZĂRESCU   +2 more
doaj  

Constraining Low-Frequency Alfvenic Turbulence in the Solar Wind Using Density Fluctuation Measurements

open access: yes, 2009
One proposed mechanism for heating the solar wind, from close to the sun to beyond 10 AU, invokes low-frequency, oblique, Alfven-wave turbulence. Because small-scale oblique Alfven waves (kinetic Alfven waves) are compressive, the measured density ...
Axford   +46 more
core   +1 more source

Ionization by bulk heating of electrons in capacitive radio frequency atmospheric pressure microplasmas

open access: yes, 2013
Electron heating and ionization dynamics in capacitively coupled radio frequency (RF) atmospheric pressure microplasmas operated in helium are investigated by Particle in Cell simulations and semi-analytical modeling.
  +30 more
core   +1 more source

Features of Earth’s lower ionosphere during solar eclipse and sunset and sunrise hours according to measurements by the API method near Nizhny Novgorod

open access: yesSolar-Terrestrial Physics
We present the results of experimental studies into the response of Earth’s lower ionosphere to a partial solar eclipse. The studies have been carried out using the method of resonant scattering of radio waves by artificial periodic irregularities (APIs)
Bahmetieva N. V.   +4 more
doaj   +1 more source

Effects of near-infrared heating and high frequency induction roller heating in continuous tape layup molding of CFRTP

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Automated thermoplastic tape laying (ATL) and automated fiber placement (AFP) are high-potential manufacturing methods for continuous carbon fiber reinforced thermoplastic (CFRTP) composites which can ensure operational safety even in highly loaded ...
Daiki TANABE   +3 more
doaj   +1 more source

ELF/VLF Wave Radiation Experiment by Modulated Ionospheric Heating Based on Multi-Source Observations at EISCAT

open access: yesAtmosphere, 2022
Ground-based high-frequency modulated waves can periodically heat the ionosphere and create “virtual antennas”, which can radiate extremely low frequency (ELF, 0.3–3 kHz) or very low frequency (VLF, 3–30 kHz) waves for long-distance communication ...
Jing Chen   +10 more
doaj   +1 more source

Analysis and Evaluation of WBG Power Device in High Frequency Induction Heating Application

open access: yesEnergies, 2020
A device suitability analysis is performed herein by comparing the performance of a silicon carbide (SiC) metal-oxide-semiconductor-field-effect transistor (MOSFET) and a gallium nitride (GaN) high-electron mobility transistor (HEMT), which are wide ...
Kwang-Hyung Cha   +2 more
doaj   +1 more source

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