Cloning and expression of the genes encoding the chick muscle nicotinic acetylcholine receptor

Imperial Users onl

The stability of thin shells

Imperial Users onl

Tools for Analysis of Complex Geometries for a Combined Cycle SCRAM Jet / Rocket

A preliminary design for a variable geometry combined cycle supersonic combustion ram jet (SCRAM jet) / rocket was developed. A precise geometry was selected by parametric analysis and the resultant geometry was analyzed using a computational fluid dynamics (CFD) code developed by Dr. Eric Perrell, and modified by, among others, the author. This paper is broken into several sections discussing, separately, the design innovations used to permit the geometry of the craft to be adjusted to conform to its flight conditions, the 2D analysis tool developed for the parametric analysis, development of the grid for CFD analysis, and modifications made to the CFD code to accommodate the complex geometries that necessarily were incorporated in the grid. Results are discussed at the end

Treatment of Diabetes With Oral Hypoglycemic Drugs

Oral hypoglycemic drugs now available are of two types. The biguanides, of which phenformin (DBI) is the only one available, increase glucose utilization by muscles. The sulfonylureas, tolbutamide (Orinase), acetohexamide (Dymelor), and chlorpropamide (Diabinese), stimulate the pancreas to produce and release more insulin. All three sulfonylureas have the same effect in responsive patients, but they differ in potency and in duration of action