The Internet has been a widely-adopted means of media distribution in these days especially after the introduction of MPEG file format. To gain control over listeners', on-line suppliers of music files use authentication schemes to control listeners' access and access mode. Such arrangements requir.....
[更多]
This improved material relates to novel planar materials having band gap properties, and in particular to such materials formed with fractal patterns. Band gap materials are ideal for shielding electromagnetic (EM) radiation as they have a gap in the transmission band thus blocking transmission of E.....
[更多]
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]
Media streaming is getting more and more important as an essential service with the increasing popularity of broadband Internet access. Video-on-demand (VoD) is one of such services where movies are delivered to desktops of distributed users with low delay and free interactivity. However, VoD is not.....
[更多]
Fluorescent lamp is a common form of illumination in offices, public areas and even households. However, it is much harder to provide dimmable control for fluorescent lamps when compared with incandescent ones. A new method is now invented in achieving control over dimming function for fluorescent.....
[更多]
|< <- | [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] | -> >| |