Fritillaria (Beimu) is one of the important traditional Chinese herbal medicines commonly used as antitussive and expectorant. There are about 25 species and varieties of Beimu on commercial markets. The price, efficacy and toxicity of Beimu vary with the species. However, the identification of the .....
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A new liquid crystal display (LCD) which eliminates the need for a conventional output polarizer is discovered. The display comprises only a liquid crystal (LC) cell, a single input polarizer, a reflector placed behind the cell, and a retardation film placed between the reflector and the cell. A Jo.....
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Retinoic acid (RA) induces the differentiation of many cell types such as epithelial cells and cancer cells. Clinically, RA has been demonstrated to be efficacious in the treatment of promyelocytic leukemia, a type of blood disease. RA has also been shown to affect patterning and neurogenesis in viv.....
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Electrorheological(ER) fluids are of high interest because potentially they can provide simple, quiet, and fast interfaces between electrical controls and mechanical systems. However, a problem with ER fluids to date is that the yield strength is too low for many practical applications. The main dra.....
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III-nitride compound semiconductors have the merits of wide band gap, high breakdown field, and large thermal conductivity, which results in well designed AlGaN/GaN heterojunction field-effect transistors. This transistor is capable of high temperature operation, suitable for high temperature integr.....
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