摘要:
A semiconductor light emitting device comprising a light emitting layer disposed between an n-type region and a p-type region is combined with a ceramic layer which is disposed in a path of light emitted by the light emitting layer. The ceramic layer is composed of or includes a wavelength converting material such as a phosphor. Luminescent ceramic layers according to embodiments of the invention may be more robust and less sensitive to temperature than prior art phosphor layers. In addition, luminescent ceramics may exhibit less scattering and may therefore increase the conversion efficiency over prior art phosphor layers.
摘要:
A shopping server proposal system includes a mechanism that enhances the online retailer's existing database system with the necessary information to provide the desired services. The existing catalog of items is analyzed based on a set of predefined rules for a given retail store. This analysis determines which of the items in the catalog are related to other items in the catalog. The result of this analysis includes new relations of the catalog items that are written into the retailer's existing database system. The mechanism for assembling this information, based on a set of predefined rules, is independent of the retailer or the retailer's industry. The provides retail businesses with a competitive edge by enabling them to offer automated shopping advice to solve the shoppers' problems of finding related and matching items, and by providing a list of related items based on the selected item's properties.
摘要:
Crystalline, single-phased layers of PbMg0.33 Nb0.6703 with relative dielectric constants of 1500 and more are prepared through the use of a precursor solution that comprises a macrocyclic complexing agent. This agent is added to the lead component in an organic solution. The resulting layer is part of a device which may further include semiconductor elements and resistors.
摘要翻译:通过使用前体制备相对介电常数为1500以上的PbMg 0.33 Nb 0.67 N 3 O 3的结晶单相层 溶液,其包含大环络合剂。 将该试剂加入有机溶液中的铅组分。 所得到的层是可以进一步包括半导体元件和电阻器的器件的一部分。
摘要:
This invention relates to an actuator which consists of a hydraulic or pneumatic drive, which in accordance with the invention is combined with an electromechanical drive in one constructional unit, the hydraulic or pneumatic drive being the normal drive of the actuator and the electromechanical drive being used for an alternative actuation of the actuator.