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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Existence of phase transition for percolation using the Gaussian Free Field
高斯自由 伯努利渗透 相变存在
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2023/5/8
In this talk, we prove that Bernoulli percolation on graph undergoes a non-trivial phase transition if the graph has bounded degrees and random walk on the graph has a heat kernel with rapid decay. Th...
Delaying transition in Taylor-Couette flow with axial motion of the inner cylinder
Taylor-Couette fl ow axial motion
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2014/12/30
Periodic axial motion of the inner cylinder in Taylor-Couette flow is used to delay transition to Taylor vortices. The outer cylinder is fixed. The marginal stability diagram
of Taylor-Co...
DELAYING TRANSITION FURTHER WITH THE AID OF A SHORT COMPLIANT PANEL IN A BLASIUS BOUNDARY LAYER FLOW
compliant boundary layer wavepackets
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2014/5/4
The cost of fuelling especially for those in the transport industries could be reduced drastically if there is a means of reducing drag force over their vehicles while in motion. One way to overcome t...
Modeling the transition to turbulence in shear flows
Modeling transition turbulence shear flows
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2011/8/5
Abstract: One-dimensional models are presented for transitional shear flows. The models have two variables corresponding to turbulence intensity and mean shear. These variables evolve according to sim...
Order-to-disorder transition in ring-shaped colloidal stains
Order-to-disorder transition ring-shaped colloidal stains Fluid Dynamics
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2011/8/2
Abstract: A colloidal dispersion droplet evaporating from a surface, such as a drying coffee drop, leaves a distinct ring-shaped stain. Although this mechanism is frequently used for particle self-ass...
Interplay between a hydrodynamic instability and a phase transition: the Faraday instability in dispersions of rodlike colloids
a hydrodynamic instability a phase transition Interplay rodlike colloids
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2011/9/15
Strong effects of the Faraday instability on suspensions of rodlike colloidal particles are reported through measurements of the critical acceleration and of the surface wave amplitude. We show that t...
Spontaneous Transition of Turbulent Flames to Detonations in Unconfined Media
Turbulent Flames Detonations in Unconfined Media
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2011/9/14
Deflagration-to-detonation transition (DDT) can occur in environments ranging from experimental and industrial systems to astrophysical thermonuclear (type Ia) supernovae explosions. Substantial progr...
A Comment Upon Previous Studies on 3-D Boundary Layer Transition
3-D Boundary Layer Transition
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2009/10/15
The common feature of the experimental studies upon 3-D boundary layer development on swept flat plates cited in the available literature is the application of streamwise and/or spanwise pressure grad...