Results 11 to 20 of about 165,821 (210)

Microaccelerometer on Surface Acoustic Waves with a Ring Resonator on Anisotropic Material

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2019
Introduction. Diagnostic systems are designed to monitor the condition of operational components (for example, on the railway). It is imperative that micro-electromechanical systems (MEMS) equipped with acceleration sensors (accelerometers) be used as ...
Dmitry P. Lukyanov   +4 more
doaj   +1 more source

Contact mechanics for randomly rough surfaces [PDF]

open access: yes, 2006
When two solids are squeezed together they will in general not make atomic contact everywhere within the nominal (or apparent) contact area. This fact has huge practical implications and must be considered in many technological applications.
Archard   +51 more
core   +3 more sources

STRAIN LOCALIZATION PECULIARITIES AND DISTRIBUTION OF ACOUSTIC EMISSION SOURCES IN ROCK SAMPLES TESTED BY UNIAXIAL COMPRESSION AND EXPOSED TO ELECTRIC PULSES

open access: yesГеодинамика и тектонофизика, 2015
Results of uniaxial compression tests of rock samples in electromagnetic fields are presented. The experiments were performed in the Laboratory of Basic Physics of Strength, Institute of Continuous Media Mechanics, Ural Branch of RAS (ICMM).
V. A. Mubassarova   +4 more
doaj   +1 more source

Cavitation Induction by Projectile Impacting on a Water Jet [PDF]

open access: yes, 2019
The present paper focuses on the simulation of the high-velocity impact of a projectile impacting on a water-jet, causing the onset, development and collapse of cavitation. The simulation of the fluid motion is carried out using an explicit, compressible,
Farhat, M.   +4 more
core   +1 more source

Time-Reversal of Nonlinear Waves - Applicability and Limitations [PDF]

open access: yes, 2016
Time-reversal (TR) refocusing of waves is one of fundamental principles in wave physics. Using the TR approach, "Time-reversal mirrors" can physically create a time-reversed wave that exactly refocus back, in space and time, to its original source ...
Chabchoub, A., Ducrozet, G., Fink, M.
core   +5 more sources

The physics of earthquakes [PDF]

open access: yes, 2004
Earthquakes occur as a result of global plate motion. However, this simple picture is far from complete. Some plate boundaries glide past each other smoothly, while others are punctuated by catastrophic failures.
Brodsky, Emily E., Kanamori, Hiroo
core   +1 more source

Hawking radiation without black hole entropy [PDF]

open access: yes, 1997
In this Letter I point out that Hawking radiation is a purely kinematic effect that is generic to Lorentzian geometries. Hawking radiation arises for any test field on any Lorentzian geometry containing an event horizon regardless of whether or not the ...
B. Reznik   +33 more
core   +2 more sources

A Variational Characterization of Fluid Sloshing with Surface Tension

open access: yes, 2017
We consider the sloshing problem for an incompressible, inviscid, irrotational fluid in an open container, including effects due to surface tension on the free surface. We restrict ourselves to a constant contact angle and seek time-harmonic solutions of
Hohenegger, Christel   +2 more
core   +1 more source

Scaling laws for jets of single cavitation bubbles [PDF]

open access: yes, 2016
Fast liquid jets, called micro-jets, are produced within cavitation bubbles experiencing an aspherical collapse. Here we review micro-jets of different origins, scales and appearances, and propose a unified framework to describe their dynamics by using ...
Dorsaz, Nicolas   +5 more
core   +2 more sources

Sliding without slipping under Coulomb friction: opening waves and inversion of frictional force

open access: yes, 2016
An elastic layer slides on a rigid flat governed by Coulomb's friction law. We demonstrate that if the coefficient of friction is high enough, the sliding localizes within stick-slip pulses, which transform into opening waves propagating at intersonic ...
Yastrebov, Vladislav A.
core   +3 more sources

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