The present invention introduces a novel process of preparing branched polymers and branched organic materials containing triaroylbenzene moieties as one structural unit by cyclotrimerization. Among conventional methods for synthesis of hyperbranched polymers, it is found that degree of branching is.....
[更多]
Ammonia (NH3) and odorous smell (nitrogen containing compounds) in the air are contaminants and are harmful to human health. Since more and more people concern for the indoor air quality after the outbreak of SARS, methods have been developed to eliminate the contaminants.Conventional supported meta.....
[更多]
A method of making a multilayer filter and the multilayer filter made by the method. The method includes generally two steps. The first step is to coat a layer of nanofibers on a single side or both sides of a substrate medium to obtain a composite filter medium, and the second step is to fold the c.....
[更多]
The operational frequency of existing magnetoelectric materials having metallic or ceramic magnetostrictive materials and ceramic piezoelectric materials may be limited to a few kilohertz due to the presence of eddy-current losses in the metallic magnetostrictive phase. Further, these materials may .....
[更多]
Programmed cell death is a very important cellular process that is critically involved in many diseases. A key step in the programmed cell death is the activation of a series of intracellular proteases, such as caspase-3. The invention is a novel method of detecting the early stage of programmed cel.....
[更多]
| |< <- | [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] | -> >| |
