Abstract: A system and method for specification and exchange management includes a specification application, an exchange application, a source application, and an optional enterprise application. The specification application enables a user to create, modify, and retire specifications for items having standard terminology in a standard format. The exchange application enables a user to perform a transaction for generating a request for quote/request for proposal to designated suppliers for an item, receiving supply proposals in response to the requests, and forming a contract to supply of the items. The source application exchanges content between the specification application and the exchange application. The enterprise application communicates with user applications for users of the system and transmits content to and from the user and the specification application and the exchange application.

Abstract: A system and method for specification and exchange management includes a specification application, an exchange application, a source application, and an optional enterprise application. The specification application enables a user to create, modify, and retire specifications for items having standard terminology in a standard format. The exchange application enables a user to perform a transaction for generating a request for quote/request for proposal to designated suppliers for an item, receiving supply proposals in response to the requests, and forming a contract to supply of the items. The source application exchanges content between the specification application and the exchange application. The enterprise application communicates with user applications for users of the system and transmits content to and from the user and the specification application and the exchange application.

Abstract: Cosmetically acceptable physical sunscreens which remain visibly transparent upon the skin while remaining capable of absorbing substantial UV radiation. A first embodiment is directed to the use of a dispersion of micronized particles of zinc oxide having a diameter of less than about 0.2 .mu. and a very low trace metal content. A second embodiment utilizes substantially larger crystals of substantially pure zinc oxide, measuring between about 1-100 microns in diameter, formed by a process, such as chemical vapor deposition, which produces symmetrical, substantially optically perfect crystals with a relatively smooth outer surface and which are substantially free of internal fractures and imperfections. Visibly transparent glass particles having a diameter of between about 0.01-100 .mu. may also be utilized as the UV absorbing agent. A further embodiment utilizes visibly transparent plastic spheres measuring between about 0.

Abstract: Cosmetically acceptable physical sunscreens which remain visibly transparent upon the skin while remaining capable of absorbing substantial UV radiation. A first embodiment is directed to the use of a dispersion of micronized particles of zinc oxide having a very low trace metal content. A second embodiment utilizes substantially larger crystals of substantially pure zinc oxide, measuring between about 1-100 microns in diameter, formed by a process, such as chemical vapor deposition, which produces symmetrical, substantially optically perfect crystals with a relatively smooth outer surface and which are substantially free of internal fractures and imperfections. Visibly transparent glass particles having a diameter of between about 0.01-100 .mu. may also be-utilized as the UV absorbing agent. A further embodiment utilizes visibly transparent plastic spheres measuring between about 0.

Abstract: A solar powered light comprises a cover containing a fresnel lens structure (also referred to as a fresnel lens cover) which is disposed directly above and adjacent to a photovoltaic cell thereof. The fresnel lens cover comprises a continuous and smooth outer surface and a prismatic inner surface having a plurality of prismatic means arranged in concentric circles to bend incoming radiation, especially at high angles of incidence, such as during winter months or at the beginning or end of a day, toward an optical axis thereof. The prisms have different thicknesses and are arranged in different angular configurations to accomplish the desired bending at each point of the cover. In a preferred embodiment, additional prismatic means are formed on a peripheral portion of the outer surface to cover a photodetector used for sensing the absence of light and triggering circuitry to turn on the solar powered lights.

Abstract: Cosmetically acceptable physical sunscreens which remain visibly transparent upon the skin while remaining capable of absorbing substantial UV radiation. A first embodiment is directed to the use of a dispersion of micronized particles of zinc oxide having a very low trace metal content. A second embodiment utilizes substantially larger crystals of substantially pure zinc oxide, measuring between about 1-100 microns in diameter, formed by a process, such as chemical vapor deposition, which produces symmetrical, substantially optically perfect crystals with a relatively smooth outer surface and which are substantially free of internal fractures and imperfections. Visibly transparent glass particles having a diameter of between about 0.01-100.mu. may also be utilized as the UV-absorbing agent. A further embodiment utilizes visibly transparent plastic spheres measuring between about 0.