Results 61 to 70 of about 1,492,145 (327)

Highly-doped SiC resonator with ultra-large tuning frequency range by Joule heating effect [PDF]

, 2020
Tuning the natural frequency of a resonator is an innovative approach for the implementation of mechanical resonators in a broad range of fields such as timing applications, filters or sensors.
Nguyen, Nam-Trung, Abbin Perunnilathil Joy, Dinh, Toan, Guzman, Pablo, Nam-Trung Nguyen, Mina Rais-Zadeh, Behraad Bahreyni, Li, Huaizhong, Zhu, Yong, Joyd, Abbin Perunnilathil, Rais-Zadeh, Mina, Dao, Dzung Viet, Dzung Viet Dao, Hoang-Phuong Phan, Qamar, Afzaal, Huaizhong Li, Phan, Hoang-Phuong, Pablo Guzman, Yong Zhu, Bahreyni, Behraad, Toan Dinh, Afzaal Qamar, Joy, Abbin Perunnilathil   +22 more
core   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

Advanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Coherent Radar Estimates of Average High-latitude Ionospheric Joule Heating. [PDF]

, 1995
The Scandinavian Twin Auroral Radar Experiment (STARE) and Sweden and Britain Radar Experiment (SABRE) bistatic coherent radar systems have been employed to estimate the spatial and temporal variation of the ionospheric Joule heating in the combined ...
Nielsen, E., Kosch, Mike J.
core   +5 more sources

Current-Induced Thermal Tunneling Electroluminescence in a Single Highly Compensated Semiconductor Microrod

iScience, 2020
Summary: Here we demonstrate a novel and robust mechanism, termed as “current-induced Joule heating activated thermal tunneling excitation,” to achieve electroluminescence (EL) by the hot electron-hole-pair recombination in a single highly compensated ...
Cheng Xing, Wei Liu, Qiang Wang, Chunxiang Xu, Yinzhou Yan, Yijian Jiang   +5 more
doaj   +1 more source

Preparation of Coal-Based Graphene by Flash Joule Heating

ACS Omega
This study explores the production of flash graphene (AC-FG) from anthracite coal by using the flash Joule heating (FJH) method. This study demonstrates that AC-FG can be derived from anthracite coal by precisely controlling the system parameters ...
Xinjuan Liu, Hongchao Luo
semanticscholar   +1 more source

Numerical analysis of 3-D MHD hybrid nanofluid over a rotational disk in presence of thermal radiation with Joule heating and viscous dissipation effects using Lobatto IIIA technique

, 2021
In this research, the phenomenon of heat and mass transfer in 3D radiative flow of hybrid nanofluid over a rotational disk is investigated. Nanoparticles of Al2O3 and Cu are being used with water (H2O) as base fluid.
M. Shoaib, M. Raja, M. Sabir, M. Awais, S. Islam, Z. Shah, Poom Kumam   +6 more
semanticscholar   +1 more source

Rapid joule heating improves vitrification based cryopreservation

Nature Communications, 2022
Cryopreservation by vitrification has far-reaching implications. However, rewarming techniques that are rapid and scalable (both in throughput and biosystem size) for low concentrations of cryoprotective agent (CPA) for reduced toxicity are lacking ...
Li Zhan, Zong-Hu Han, Qi Shao, M. Etheridge, T. Hays, J. Bischof   +5 more
semanticscholar   +1 more source

Upper-mesospheric temperatures measured during intense substorms in the declining phase of the January 2005 solar proton events [PDF]

, 2008
Temperature measurements from the ALOMAR Weber Na lidar together with cosmic radio noise absorption measurements from IRIS and particle measurements from NOAA 15, 16 and 17 are used to study effects of geomagnetic activity on the polar winter upper ...
J. Stadsnes, H. Nesse Tyssøy, Honary, F., D. Heinrich, Nesse Tyssøy, H.N., Williams, B.P., Heinrich, D., B. P. Williams, D. S. Evans, F. Honary, Stadsnes, J., Hoppe, U.P., U.-P. Hoppe, Sorbo, M., Evans, D.S., M. Sørbø   +15 more
core   +2 more sources

Two Coexisting Pathways to Volatility in Valence‐Change Memory Devices

Advanced Functional Materials, EarlyView.
Volatile VCM‐type memristive devices exhibit current relaxation after resistive switching, but their microscopic origin remains debated. Using pulsed measurements and a new Tunnel‐DLTS approach on Pt/SrTiO3/Nb:SrTiO3 devices, we show that post‐SET volatility is predominantly ionic, while electronic contributions—arising from quasi‐Fermi‐level ...
Johannes Hellwig, Clemens Wittberg, Dimitrios Spithouris, Regina Dittmann   +3 more
wiley   +1 more source

A numerical study of magnetohydrodynamics flow in Casson nanofluid combined with Joule heating and slip boundary conditions

Results in Physics, 2017
A numerical study of Casson nanofluid past horizontal stretching surface with magnetic effect and Joule heating are presented. Slip and thermal convective boundary conditions are considered in the study.
A. Kamran, S. Hussain, M. Sagheer, N. Akmal   +3 more
doaj   +1 more source