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This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

The authors study small disturbances to the periodic, plane Couette flow in the 3D incompressible Navier-Stokes equations at high Reynolds number Re. They prove that for sufficiently regular initial data of size $epsilon leq c_0mathbf ^-1$ for some universal $c_0 > 0$, the solution is global, remains within $O(c_0)$ of the Couette flow in $L^2$, and returns to the Couette flow as $t ightarrow infty $. For times $t gtrsim mathbf ^1/3$, the streamwise dependence is damped by a mixing-enhanced dissipation effect and the solution is rapidly attracted to the class of ""2.5 dimensional''...

Le premier volume du dictionnaire PatRom, le tome II.1 paru en 2004, a ete consacre a l'homme et aux parties du corps humain, essentiellement a la tete et aux membres superieurs. Le tome II.2 viendra le completer en exploitant les etymons des membres inferieurs (COXA, CAMBA, PES, etc.) et des fonctions plus generales (SANGUIS, CAPILLUS, PILUS, PELLIS). Le volume sera complete par un echantillon d'etymons relatifs a des qualites physiques (IUVENIS, GROSSUS, SURDUS, etc.) ou morales (DULCIS, FIDELIS, GURDUS) liees principalement a l'espece humaine.

Ce volume II.2 sera...