A method to produce amides in one step without any unwanted by-products, by coupling of alcohols with amines with the liberation of hydrogen gas, catalyzed by unique ruthenium complexes.Amides are widely used in the industry (e.g. nylon, Kevlar) and have widespread importance in biochemical and chem.....
[更多]
Flow Measurements in a Subsonic Wind Tunnel The Aerodynamics Laboratory is a world-wide leading center in the field of flow control and measurements of unsteady complex flows.The lab is equipped with five (5) wind tunnels, covering a large spectrum of sizes and velocity ranges. Some of the tunnels e.....
[更多]
About 15% of couples trying to conceive are facing difficulties.Female tubal factors are by far the largest group causing 25-35% of all infertility cases, thus 2/3 of all non conceiving couples will undergo an investigation that includes tubal imaging, 10% of whom will be candidates for tubal recana.....
[更多]
| |< <- | [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] | -> >| |
