... Spontaneous Pattern Formation in an Acoustical Resonator . ... The problem of spontaneous emergence of patterns in the transverse section of an acoustical interferometer is studied from the theoretical point of view. ... It is shown that the subharmonic field can be excited, when a threshold pump value is reached, and presents a non-uniform distribution in the transverse plane, or pattern. ... Traditionally, patterns arise from the imposition of external constraints (waveguiding). ...

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• AUTHOR : Espinosa V
• AUTHOR : Sanchez-Morcillo V

... Potts-glass models of neural networks. ... FIXED POINTS OF PNN [pic] For any [pic], the only fixed points of a network constructed with the aid of two patterns [pic] and [pic] are these patterns themselves (and their negatives [pic]). [pic] Let us examine a case, when q = 2 and the vectors [pic] are without the signs [pic] (the signals are without the phase failure): [pic] As the neurons possess only one of the two values [pic] or [pic], formally this case is alike the Hopfield model. ...

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... Control of the Self Assembly Processes in a Droplet of a Colloidal Solution by an Acoustic Field O. V. Rudenkoa, P. V. Lebedev Stepanovb, V. A. Guseva, A. I. Korobova, B. A. Korshaka, N. I. Odinaa, M. Yu. ... The self assembly in the course of solvent evapora tion occurs owing to capillary forces, which displace the particles in the near surface layers of the solution as the volume of the latter decreases. ... For simplicity, we replace the actual droplet on a solid substrate by a plane liquid layer...

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