منابع مشابه
What Makes an Annular Mode ‘‘Annular’’?
Annular patterns with a high degree of zonal symmetry play a prominent role in the natural variability of the atmospheric circulation and its response to external forcing. But despite their apparent importance for understanding climate variability, the processes that give rise to their marked zonally symmetric components remain largely unclear. Here the authors use simple stochastic models in c...
متن کاملAnnular Pancreas
Introduction Annular pancreas (from the Latin annularis, meaning ring-shaped) is a rare congenital disorder of the pancreas first recognised by Tiedeman in 1818. This abnormality, although at times clinically silent, may be the cause of a broad spectrum of disease. Complications range from neonatal intestinal obstruction to more complex pathologies in the adult. In cases of neonatal obstruction...
متن کاملModelling Annular Micromixers
Magnetohydrodynamic mixing of two fluids in an annular microchannel is modelled as a twodimensional, laminar, convection-diffusion problem, and examined using asymptotic analysis and numerical simulation. The time T required for mixing of a plug of solute depends on the Peclét number Pe, and on the geometry of the annulus. Three scaling regimes are identified: purely diffusive, Taylordispersive...
متن کاملExtended annular capillary surfaces
The height of the surface of a fluid in an annular tube is explored using a shooting method to solve a boundary value problem where the radii and the contact angles are given. The contact angles on the inner and outer tube surface need not be the same. These surfaces are then extended so that they are no longer graphs. The extended surfaces are shown to solve a boundary value problem over an an...
متن کاملAnnular choroidal sclerosis.
This is a case description of a rare fundus condition known as annular choriodal sclerosis. No more than four previous cases have so far been reported. In this article consideration is given to the pathogenesis of the disease and a possible familial link.
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ژورنال
عنوان ژورنال: Annals of Surgery
سال: 1967
ISSN: 0003-4932
DOI: 10.1097/00000658-196703000-00023