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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Energy/dissipation-preserving split Birkhoffian multi-symplectic methods for Maxwell’s equations
麦克斯韦方程组 能量/耗散守恒分裂 Birkhofian 多辛方法
2023/5/18
We propose a novel kind of energy/dissipation-preserving split Birkhoffian multi-symplectic (S-BMS) methods for Maxwell's equations with dissipation terms. After investigating the non-autonomous and a...
Coupled Effects of Energy Dissipation and TravellingVelocity in the Run-Out Simulation of High-SpeedGranular
Sliding Granular Mass Granular Temperature Shear Layer Excess Interstitial Pressure
2013/3/7
The run-out of high speed granular masses or avalanches along mountain streams, till their arrest, is analytically modeled. The power balance of a sliding granular mass along two planar sliding surfac...
Giant strain-sensitivity of acoustic energy dissipation in solids containing dry and saturated cracks with wavy interfaces
strain-sensitivity solids containing dry and saturated cracks
2011/9/2
Mechanisms of acoustic energy dissipation in heterogeneous solids attract much attention in view of their importance for material characterization, nondestructive testing, and geophysics. Due to the ...
Magnetization Dynamics, Bennett Clocking and Associated Energy Dissipation in Multiferroic Logic
Nanomagnetic logic arrays and nanocomputing multiferroics Bennett clocking
2010/11/22
It has been recently shown that multiferroic logic – where logic bits are encoded in the magnetization orientation of a nanoscale magnetostrictive layer elastically coupled to a piezoelectric layer – ...
Casimir Friction Force and Energy Dissipation for Moving Harmonic Oscillators. II
Casimir Friction Force Energy Dissipation Harmonic Oscillators.
2010/10/20
This paper, the second in a series (the first one appearing as arXiv:1001.2489), continues our investigations of a two-oscillator sys-tem in linear relative motion serving as a simplified model of the...
A Study of Tidal Energy Dissipation and Bottom Stress in an Estuary
Tidal Energy Dissipation Bottom Stress Estuary
2009/2/19
A Method for inferring an area-averaged bottom stress and energy dissipation rate in a tidal estuarine channel is presented. The one-dimensional continuity and momentum relations are developed using s...
Energy Dissipation and Upwelling in a Western Boundary Current
Energy Dissipation Upwelling Western Boundary Current
2008/12/30
Energy dissipation in a western boundary current begins with the conversion of mean potential energy into kinetic energy of “primary” eddies. The rate of this energy conversion is taken to equal the t...
Energy Dissipation by Breaking Waves
Energy Dissipation Breaking Waves field measurements
2008/12/16
Recent field measurements by Agrawal et al. have provided evidence of a shallow surface mixed layer in which the rate of dissipation due to turbulence is one to two orders of magnitude greater than th...
Estimates of Kinetic Energy Dissipation under Breaking Waves
Kinetic Energy Dissipation Breaking Waves
2008/12/9
The dissipation of kinetic energy at the surface of natural water bodies has important consequences for many Physical and biochemical processes including wave dynamics, gas transfer, mixing of nutrien...
Comments on “Estimates of Kinetic Energy Dissipation under Breaking Waves”
Kinetic Energy Dissipation Breaking Waves
2008/12/3
It is noted that the results of recent experiments on the enhancement of turbulent kinetic energy (TKE) dissipation below surface waves can be stated as follows. TKE dissipation is enhanced by a facto...
The Connection between Bubble Size Spectra and Energy Dissipation Rates in the Upper Ocean
Bubble Size Spectra Energy Dissipation Rates Upper Ocean
2008/7/3
A formula for the maximum size of a bubble for which surface tension forces can prevent bubble breakup by inertial forces, combined with the observed sizes of air bubbles in breaking waves, implies an...
Free-Wave Energy Dissipation in Experimental Breaking Waves
Free-Wave Energy Dissipation Experimental Breaking Waves
2008/7/3
Several transient wave trains containing an isolated plunging or spilling breaker at a prescribed location were generated in a two-dimensional wave flume using an energy focusing technique. Surface el...
Tidal Energy Dissipation at the Sill of Sechelt Inlet
Tidal Energy Dissipation Sill of Sechelt Inlet British Columbia
2008/6/4
The energy budget of a tidally active, shallow silled fjord is discussed. Constriction of the flow over the shallow sill causes a reduction in tidal amplitude and a phase lag across the sill. A genera...
Abstract: A certain pattern of channel is the product of its self-adjustment under given boundary, discharge and sediment conditions. Based upon the principle of process-response model, an...
Energy Dissipation of a Kaolinite at Different Water Contents
Energy Dissipation Kaolinite Different Water Contents
2012/2/21
A Georgia kaolinite, at water contents from 55 to 95 per cent, was tested by means of a Weissenberg Rheogoniometer under conditions of pure shear with sinusoidally varying deformation over a frequency...