For years, mouse models have been used for testing new drugs, despite their high cost. More recently, the zebrafish has been identified by the National Institutes of Health (NIH) in the US as an important vertebrate model for studying the development of embryos and human diseases. When compared wi.....
[更多]
The display of digital holograms is hampered by the fact that the resolution of existing display media is usually lower than the wavelength of light. To solve the problem, the generation of full parallel digital Fresnel holograms is developed to make possible their display on specially designed low .....
[更多]
Cubic boron nitride (cBN) is the second highest in terms of hardness, elastic modulus, thermal conductivity, next to diamond, and it even has some superior properties surpassing those of diamond. cBN structures are incredibly durable materials that could have even better electronic qualities than th.....
[更多]
The power amplifier, an indispensable component in most wireless communication systems, is inherently nonlinear. In view of the importance of video conferencing and internetworking features to the next generation of mobile terminals (e.g. mobile phones) as well as the demand for high data rate trans.....
[更多]
| |< <- | [320] [321] [322] [323] [324] [325] [326] [327] [328] [329] [330] | -> >| |
