Results 311 to 320 of about 1,492,115 (344)

Adiabatic calorimeter as an ultra-low frequency spectrometer

Pure and Applied Chemistry, 1989
Abstract
H. Suga, T. Matsuo
openaire   +1 more source

A piezoelectric vibration energy harvester for multi-directional and ultra-low frequency waves with magnetic coupling driven by rotating balls

Applied Energy, 2022
Ge Shi, Dike Tong, Yinshui Xia, Shengyao Jia, Jian Chang, Qing Li, Xiudeng Wang, Huakang Xia, Yidie Ye   +8 more
semanticscholar   +1 more source

Strong Magnetic–Dielectric Synergistic Gradient Metamaterials for Boosting Superior Multispectral Ultra‐Broadband Absorption with Low‐Frequency Compatibility

Advanced Functional Materials
The construction of 3D porous structures and metamaterials (MMs) is the most promising approaches to achieve broadband electromagnetic wave (EMW) absorption.
Wenle Ma, Xiaoyan Liu, Tianyue Yang, Jianbin Wang, Zhengrong Qiu, Zhihao Cai, Peijia Bai, Xinyi Ji, Yi Huang   +8 more
semanticscholar   +1 more source

Characteristics of Vacuo-Thermojunctions at Ultra-Low Frequency

IEEE Transactions on Instrumentation and Measurement, 1985
Characteristics of vacuo-thermo-junctions (VTJ's) at ultra-low frequency are discussed. A method of expansion with series of nonharmonic sine functions has been combined with a method of perturbation to solve the partial differential equation for heat conduction in the heater of a vacuo-thermojunction.
openaire   +1 more source

Metamaterial plate with compliant quasi-zero-stiffness resonators for ultra-low-frequency band gap

Journal of Sound and Vibration, 2022
Changqi Cai, Jiaxi Zhou, Kai Wang, Daolin Xu, Guilin Wen   +4 more
semanticscholar   +1 more source

Ultra-low frequency dynamics in glassy crystals

Journal de Chimie Physique, 1985
Enthalpy relaxation below and above the glass transition in an orientationally disordered crystal can be observed calorimetrically as a spontaneous temperature drift of the sample under an adiabatic condition. Upon the heating of a quenched sample, positive temperature drifts are observed to reach a peak at a temperature just below Tg and are followed
openaire   +1 more source

Multistage oscillators for ultra-low frequency vibration isolation and energy harvesting

Science China Technological Sciences, 2022
Tao Yang, Yongqi Zhang, Shengxi Zhou
semanticscholar   +1 more source

Clinical Application of Ultra-High-Frequency Ultrasound

Journal of Personalized Medicine, 2022
Anna Russo, Alfonso Reginelli, Michele Ahmed Antonio Karaboué   +2 more
exaly  

Dual electromagnetic mechanisms with internal resonance for ultra-low frequency vibration energy harvesting

Applied Energy
Ruqi Sun, Shengxi Zhou, Zhongjie Li, Li Cheng   +3 more
semanticscholar   +1 more source

An ultra-low frequency ball-impacted potential-variable nonlinear energy harvester

Mechanical Systems and Signal Processing, 2023
Dong F Wang, Yuji Suzuki
exaly