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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7284363 | Method of power generation for airborne vehicles A closed cycle turbine system is provided for the generation of power in a light, high altitude airborne vehicle. The closed cycle turbine system may operate according to either the Brayton or the Rankine cycles. The working fluid for the closed cycle may be alterna... | 10/23/2007 |
| 6247315 | Oxidant control in co-generation installations This invention is related to so-called combined cycle co-generation installations, and it addresses present concerns of the industry. Among these, combustion stability, corrosion (due to large water content in the flue gases), large heat transfer areas, a... | 06/19/2001 |
| 5372007 | Expanding high-pressure fuel gas and steam in a turbine to drive an electric generator before burning the gas to make steam The generation of electricity via a steam turbine-driven generator is improved by mixing high-pressure fuel gas with the steam supplied to the turbine. The turbine discharge is separated into gas and steam condensate. The gas is burned to convert the cond... | 12/13/1994 |
| 4354347 | Combined cycle system for optimizing cycle efficiency having varying sulfur content fuels This disclosure is directed toward combined cycle power plants which include at least one gas turbine and one steam turbine thermally coupled through a heat recovery steam generator (HRSG). Exhaust gas from the gas turbine is used to heat feedwater into s... | 10/19/1982 |
| 4016724 | Steam engine A steam or vapor engine comprising a vapor generating apparatus, at least one cylinder with a piston working in the cylinder, and pipes and valves for supplying vapor from the vapor generating apparatus to a closed chamber, formed in the cylinder, and for... | 04/12/1977 |
| 3959972 | Power plant process Fossil fuels such as coal or oil are gasified by treatment under superatmospheric pressures with oxygen containing gasifying agents to produce a primary gas containing carbon monoxide and hydrogen. The primary gas is desulfurized and converted in increasi... | 06/01/1976 |
