Results 41 to 50 of about 360,981 (226)

Microscopic nanomechanical dissipation in gallium arsenide resonators [PDF]

open access: yes, 2018
We report on a systematic study of nanomechanical dissipation in high-frequency (approximatively 300 MHz) gallium arsenide optomechanical disk resonators, in conditions where clamping and fluidic losses are negligible.
Allain, P. E.   +8 more
core   +2 more sources

Experimental and numerical investigations of the transmitting antenna in microwave wireless power transmission with forced air cooling system

open access: yesCase Studies in Thermal Engineering, 2022
To address the heat dissipation problem of the transmitting antenna in microwave power transmission system, an optimization design approach is proposed in this paper.
Sihao Qian   +5 more
doaj   +1 more source

An evolution analysis of the impact energy damage of collapsed rolling stones under strong earthquakes

open access: yesShuiwen dizhi gongcheng dizhi, 2022
The impact energy dissipation damage of rockfall triggered by strong earthquake is an important indicator of protection engineering design. In order to explore the evolution process of the rolling stone energy consumption damage during the impact process,
Juan LI, Liang HE, Xiaohui XUN
doaj   +1 more source

On the Rapid Increase of Intermittency in the Near-Dissipation Range of Fully Developed Turbulence

open access: yes, 2005
Intermittency, measured as log(F(r)/3), where F(r) is the flatness of velocity increments at scale r, is found to rapidly increase as viscous effects intensify, and eventually saturate at very small scales.
Castaing, Bernard   +2 more
core   +3 more sources

Analysis of urban water dissipation characteristics considering anthropogenic impacts: a case study in Beijing

open access: yesJournal of Water and Climate Change, 2023
Urban water dissipation is a significant part of the urban hydrologic cycle and has a typical natural–social dualistic attribute. Besides natural evaporation, the water dissipation in people's daily life and production process cannot be ignored.
Chuang Liu   +4 more
doaj   +1 more source

Dissipation Efficiency of Reconfinement Shocks in Relativistic Jets

open access: yes, 2011
We calculate the dissipation efficiency of relativistic reconfinement shocks. Building on previous work (Nalewajko & Sikora 2009), we consider different distributions of the external pressure. The average dissipation efficiency epsilon_diss is a function
Abdo   +35 more
core   +1 more source

1 Hz dissipation factor

open access: yesTransformers Magazine, 2022
The dielectric frequency response has evolved into a definitive analysis to determine the condition of the insulation system. The analysis of the NB DFR tests spectrum provides valuable pieces of information that can be used for the diagnostics of high voltage equipment.
Rabalino, Diego   +2 more
openaire   +2 more sources

Suppressing mechanical dissipation of diamagnetically levitated oscillator via engineering conductive geometry

open access: yesPhysical Review Research, 2023
Diamagnetically levitated oscillators of millimeter and submillimeter size are emerging ultrasensitive sensors for gravitylike force and acceleration measurements.
Han Xie   +11 more
doaj   +1 more source

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