Material For Vessels Research Articles

Velocity and pressure distributions of moving granular materials in a model of a shalt kiln

The formation of regions of flow bulk density over a discharge orifice and the distribution of horizontal and vertical stresses in a moving layer of bulk material of constant height have been studied for the flow of granular materials in cylindrical vessels. Experimentally determined stresses have been compared with theoretical equations of several authors.

PREVENTING CORROSION OF ALUMINIUM BEER CASKS

For hundreds of years wood has been the traditional material for casks and vessels for holding beer: now it is being replaced by other materials, including aluminium, and the article below briefly outlines the method of manufacture by Alumasc Ltd. of one type of such cask. In particular, it shows how the internal and external surfaces are treated to avoid corrosion by both beer and the atmosphere.

The wire suture of blood vessels; an experimental study.

Any one of such complications of bloodvessel suture as thrombosis, stricture, aneurysm formation, or dehiscence may lead to a fatal result. The threat of these complications is sufficient to warrant continuous search for new methods and improved techniques which will serve to avoid or to minimize them. In experiments described below, the use of stainless steel wire as a suture material for blood vessels has shown distinct promise in this regard. The materials ordinarily used for blood vessel suture have been (1) very fine surgical gut, (2) fine silk, and (3) fine cotton. The use of surgical gut having now been generally abandoned because of the intense reaction along the suture line, the use of fine nonabsorbable suture material has become an established principle in vascularsurgery. Silk has been used most widely. Cotton has also been employed satisfactorily. Stainless steel wire, however, appearsto possess certain advantages: its inert character, the