"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 6555053 | Method for supplying sterilization/deodorization gas and apparatus therefor According to the present invention, provided are a method whereby a sterilization/deodorization gas is supplied by irradiating a stabilized chlorine dioxide gel or liquid with ultraviolet radiation, and a sterilization/deodorization gas supply apparatus w... | 04/29/2003 |
| 4892712 | Fluid purification A purifier for water or air removes, reduces or detoxifies organic pollutants therefrom by causing the fluid to contact a matrix having surfaces with which a fixed anatase (TiO2) or other photoreactive metal semiconductor material is bonded, in... | 01/09/1990 |
| 4874489 | Process for the production of chlorine dioxide Chlorine dioxide is produced by subjecting a chlorite to ultraviolet radiation. The source for chlorite may be an aqueous solution of an alkali metal or alkaline earth metal chlorite. Chloride ions and/or hydrogen ions may be added to the solution.... | 10/17/1989 |
| 4655891 | Process for the photochemical dehydrogenation of alcohols with semiconductor powder suspensions A process for the photochemical dehydrogenation of alcohols comprises the steps of forming a suspension of semiconductor powder in the alcohol and photochemically activating the suspension in the presence of an oxidant with illumination having an energy a... | 04/07/1987 |
| 4623437 | Catalysts for photo-assisted oxidation-reduction reactions New catalysts for photo-assisted (i.e. promoted by light) oxidation-reduction (redox) reactions are disclosed. These catalysts consist of colloidal particles of a semiconductor, containing on their surface a reduction catalyst and an oxidation catalyst. I... | 11/18/1986 |
| 4602988 | Photochemical production of hydrogen from hydrogen sulfide H2 is produced from H2 S dissolved in an alkaline aqueous medium by irradiating the alkaline aqueous solution of H2 S using light in the visible range in the presence of a catalytic amount of a compound chosen from the gro... | 07/29/1986 |
| 4304649 | Solubilization of lignocellulosic materials The solubilization of lignocellulosic fibrous material is accomplished by impregnating the selected lignocellulosic material with one of a group of certain swelling agents, allowing a sufficient amount of time until the desired degree of swelling is achie... | 12/08/1981 |
| 4242187 | Preparation of alkanes substituted by chlorine atoms and/or sulfochloride groups Alkanes substituted by chlorine atoms and/or sulfochloride groups are prepared by reacting alkanes with chlorine, with or without sulfur dioxide, in a particular throughput ratio, in a reaction chamber inclined to the horizontal, the starting materials be... | 12/30/1980 |
| 4233129 | Process of preparation of alkyl esters of dl cis chrysanthemic acid A process for the production of an alkyl ester of dl cis chrysanthemic acid having the formula ##STR1## wherein R is an alkyl having from 1 to 6 carbon atoms, involving preparing a lithiated derivative of 2-methyl-pent-2-en-4-yne, reacting the same w... | 11/11/1980 |
| 4165269 | Method of making halogenated acetylenes Halogenated acetylenic compounds are prepared by irradiating a mixture of a reactant and a sensitizer with coherent light. The reactant has the general formula R--C2 HX4, R--C2 H2 X3, or R--C2 | 08/21/1979 |
| 4108746 | Method of oxidative degradation of phosphorous esters A method for oxidatively degrading organophosphorous esters to phosphoric id, carbon dioxide and water through the use of a source of free hydroxy radicals, saturation of the resulting solution with oxygen and subsequent irradiation with UV radiation betw... | 08/22/1978 |
| 4105520 | Method for producing adipic acid and precursors thereof A method for producing adipic acid and precursor thereof which comprises oxidizing cyclohexane with nitrogen dioxide under irradiation of visible ray or ultraviolet ray in the presence of oxygen is incorporated with a method for producing adipic acid whic... | 08/08/1978 |
| 4104145 | Method for producing nitrobenzene A method for the nitration of benzene by the use of nitrogen dioxide under irradiation of visible ray or ultraviolet ray in the presence of oxygen.... | 08/01/1978 |
| 4012305 | Production of 1-methyl-3-phenylindans A process for the production of 1-methyl-3-phenylindans by dimerization of styrenes in the presence of catalysts and of organic compounds which absorb light of from 2000 to 8000 A and which are irradiated with such light. The compounds which can be prepar... | 03/15/1977 |
| 4000049 | Method and device for preparing sulphonic acids derived from paraffinic hydrocarbons The instant invention relates to a method for preparing paraffin-sulphonic acids by photochemical sulphoxidation of paraffinic hydrocarbons. The invention also relates to a device for carrying out this method. The invention relates more particlarly to a method... | 12/28/1976 |
| 3993554 | Method of producing n-paraffin oximes A process for converting mixtures of C6 to C30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600° to 750° F. in the pre... | 11/23/1976 |
| 3956090 | Hydrocarbon upgrading process in paraffin oxime production A process for converting mixtures of C6 to C30 n-paraffin and n-paraffin by-products to substantially pure n-paraffin which comprises catalytically hydrogenating the mixture at a temperature of from about 600° to 750°F. in the pres... | 05/11/1976 |