High-gain and high-speed amplifiers are vital in analog circuits. Low-voltage design limits the structure of the amplifiers to change from cascode to cascade configuration. In addition, the stability as well as the bandwidth of the cascaded amplifiers are constrained by the existing frequency comp.....
[更多]
Portable electronic devices such as laptop computers, personal digital assistants, and portable DVD players and the like have become increasingly common and popular. One reason for the success of such devices is the advance in the technology of low power, lightweight and inexpensive flat-panel displ.....
[更多]
Television and video programming are now available by cable systems. However, the difficulty is that telecommunication services are commonly provided through a network of optical fibre cables that extend as far as the basement of a building, and then for signals to be carried to individual users by .....
[更多]
A laser interferometer system can be used to measure the straightness of an object. A typical Hewlett-Packard's straightness interferometer system uses a Wollaston prism to split a laser beam traveling along a principal axis into two secondary beams. However, the resolution and the range of the resp.....
[更多]
It is well known that growth of micro-organisms or macrofouling matters on the submerged parts of a structure may have detrimental effects on their operation and their corrosion rate.A method of preventing fouling of aquatic surfaces by organisms is invented. It does not contaminate the environmen.....
[更多]
| |< <- | [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] | -> >| |
