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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]
Almost all soil slopes on land are initially unsaturated in nature. In order to determine the factor of safety of unsaturated slopes accurately, it is essential to calculate transient seepage and hence pore water pressures in the soil. To do so, one has to measure the so-called soil-water characteri..... [更多]
Tags: Others
In many areas of industry the traditional method of inspecting an item is by comparison with a known master. This inspection is normally carried out by a trained inspector. Depending on the degree of quality control required in a particular field, every item or article may be inspected, or only a ce..... [更多]
Tags: Physics
A new technology is invented for the fabrication of thin photo-patterned (pixelated) polarizers with a desired local distribution of the polarization axis. This new technology allows thin photo-patterned (pixelated) neutral or color polarizers be fabricated for LCD application. The thickness of a ..... [更多]
A novel class of synthetic substances that exhibits DNA cleavage and anticancer activity is discovered. Enediyne is a well-known anticancer agent. Mechanistic study on the new invention confirms that these synthetic substances are converted into enediynes under physiological condition and then deli..... [更多]
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