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9 papers · 1 filter
Corrugation of Roads
Joseph A. Both, Daniel C. Hong, Douglas A. Kurtze
We present a one dimensional model for the development of corrugations in roads subjected to compressive forces from a flux of cars. The cars are modeled as damped harmonic oscilla…
The Reverse Brazil Nut Problem: Competition between Percolation and Condensation
Daniel C. Hong, Paul V. Quinn, Stefan Luding
In the Brazil nut problem (BNP), hard spheres with larger diameters rise to the top. There are various explanations (percolation, reorganization, convection), but a broad understan…
Elliminating The Transverse Instabilities of Kerr Solitons
C. Anastassiou, M. Soljscic, M. Segev +5
We show analytically, numerically, and experimentally that a transversely stable one-dimensional [(1+1)D] bright Kerr soliton can exist in a 3D bulk medium. The transverse instabil…
Phenomenological Theory for Phase Turbulence in Rayleigh-Bénard Convection
Xiao-jun Li, Hao-wen Xi, J. D. Gunton
We present a phenomenological theory for phase turbulence (PT) in Rayleigh-Bénard convection, based on the generalized Swift-Hohenberg model. We apply a Hartree-Fock approximation…
Condensation of Hard Spheres Under Gravity: Exact Results in One Dimension
Daniel C. Hong
We present exact results for the density profile of the one dimensional array of N hard spheres of diameter D and mass m under gravity g. For a strictly one dimensional system, the…
Modulation Instability and Pattern Formation in Spatially Incoherent Light Beams
Detlef Kip, Marin Soljacic, Mordechai Segev +2
We present the first experimental observation of modulation instability of partially spatially incoherent light beams in non-instantaneous nonlinear media. We show that even in suc…