نتایج جستجو برای: walls
تعداد نتایج: 37838 فیلتر نتایج به سال:
Mixing in viscous fluids is challenging, but chaotic advection in principle allows efficient mixing. In the best possible scenario, the decay rate of the concentration profile of a passive scalar should be exponential in time. In practice, several authors have found that the no-slip boundary condition at the walls of a vessel can slow down mixing considerably, turning an exponential decay into ...
Quenched geometric disorder of a wall delimiting a spectator phase can have dramatic effects on the nature of critical wetting transitions. We consider selfaffine walls in 2D with roughness exponent £w. Transfer matrix results for directed interfacial models with short-range interactions suggest that wetting turns firstorder as soon as L,W exceeds £0, the anisotropy index of interface fluctuati...
We explore and demonstrate quantum confinement without walls in metal-clad InAs quantum wells. We observed intersubband absorption from confined states in InAs clad with Al, Sb, Nb, W, Pt, Ag, Au, Ti or In. We found that using this novel method, we can explore the physics and chemistry at the metal–semiconductor interface; reflection, autoionization, well-width fluctuation and interface reactio...
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