Abstract:
An apparatus for inducing and accelerating hydrogen dissociation in a cloud generated from feedstock fed into a chamber defined by the apparatus is provided. The apparatus includes a device for thermally stimulating the feedstock to generate the cloud, a device for localizing the cloud within the chamber, a device for electrically stimulating the localized cloud, and a device for photonically stimulating the localized cloud. A method is also provided.
Abstract:
A process for inducing photochemical reactions using laser radiation employs a dielectric waveguide cell formed by a capillary passage communicating at its ends with a gas inlet chamber and a gas outlet chamber, each chamber being configured to encompass a cone of laser radiation focussed onto, or diverging from, the respective end of the capillary passage. The passage is configured to propagate the laser radiation therealong in one or more selected waveguide modes, thus defining an extended region of high fluence.
Abstract:
An apparatus for photochemically curing organic composites used to repair teeth includes a quartz halogen lamp (12) which is activated for a particular length of time by a cycle control circuit (42) which produces a control signal for a preselected time interval. A switching circuit (38) is coupled with the cycle control circuit (42) to interconnect an alternating current source with the quartz halogen lamp (12) at a point in the alternating current cycle when the alternating current crosses a zero voltage level. The control circuit (42) is operably coupled to a time delay circuit (40) which activates the control circuit (42) after a preselected time period after activation of the control circuit (40).
Abstract:
A method for stabilizing a cosmetic composition containing carrageenan, specifically, a toothpaste, wherein microwave radiation, preferably in the 0.8 to 3 gigahertz frequency range, is directed onto the toothpaste so as to raise its temperature to at least the gel-sol transition temperature of the carrageenan, after which the toothpaste is quiescently cooled to room temperature. The use of microwave radiation facilitates an even heating of the toothpaste, so that temperature sensitive components thereof are not adversely affected, and promotes excellent control of temperature regulation. Heating of the dentifrice, with improved thickening and stabilization thereof, is obtainable by passing it through a conduit while directing microwave radiation onto it and then filling it into suitable dispensing containers, or by filling the dentifrice into such containers and then subjecting them to microwave radiation.
Abstract:
Processes and apparatus are disclosed for generation of radioisotope contaminant fission fragment free ozone from oxygen containing streams by chemonuclear irradiation accomplished by passing the stream past high energy radiation sources placed in sealed chambers.
Abstract:
Methods and apparatus for separating krypton isotopes utilizing low temperature selective infrared excitation of .sup.85 krypton difluoride in an isotopic compound mixture. Multiphoton IR excitation and UV excitation techniques are used, as well as cryogenic matrix isolation and inert buffer gas isolation techniques.
Abstract:
Straight chain perfluoroolefins compounds of medium length with terminal or double bonds and a minor proportion of trifluoromethyl side chains or mixtures of such perfluoroolefins with perfluoro paraffins of equal chain length and corresponding structure, the perfluoroolefins being present in the mixture in an amount of 40 to 70%. The compounds are valuable as highly reactive intermediate products in the production of surface active agents. The compounds are made by subjecting a highly fluorinated organic compound to degradation by means of a high energy radiation of a density of 0.3 to 3.0 W/cm.sup.2 effected in a radiation chamber which has been subjected to a preceding rinsing with an inert gas or with a monomeric highly fluorinated organic compound.
Abstract translation:具有中等长度的具有末端或双键的直链全氟烯烃化合物和少量比例的三氟甲基侧链或这种全氟烯烃的混合物与具有相等链长和相应结构的全氟链烷烃的混合物中,全氟烯烃以40至70的量存在于混合物中 %。 这些化合物在表面活性剂生产中作为高反应性中间产物是有价值的。 化合物是通过使高度氟化的有机化合物通过在用惰性气体进行先前漂洗的辐射室中进行的,在0.3至3.0W / cm 2的密度的高能量辐射下进行降解而制成的, 单体高氟化有机化合物。
Abstract:
Methods and Apparatus for separation of uranium isotopes by selective isotopic excitation of photochemically reactive uranyl salt source material at cryogenic temperatures, followed by chemical separation of selectively photochemically reduced U.sup.+4 thereby produced from remaining uranyl source material.
Abstract:
A method of providing permanent identification markings to gemstones such as diamond crystals by irradiating the gemstone with protons in the desired pattern. The proton bombardment results in a reaction converting the bombarded area into a different crystal lattice than that of the pre-irradiated stone.
Abstract:
The invention disclosed provides a new improved radiolytic-chemical method for gas production by inclusion of oxide of nitrogen in the processing system to inhibit recombination of radiolytic products and to scavenge oxygen from the process stream. The present multi-step chemical and radiation method provides gases which may be used directly as fuel or as a base in production of hydrocarbon fuels.