"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 |
| 5264347 | Method for the determination of -ketoisocaproate in biological samples using D--hydroxyisocaproic dehydrogenase from lactobacillus casei The selective determination of -ketoisocaproate in samples of body fluids, especially in serum, is achieved, without previous separation, directly in the fluid and in the presence of NADH, by means of a KIC-specific D--hydroxy-isocaproic deh... | 11/23/1993 |
| 5159694 | Portable reactor for carrying out gas-evolving biotechnological processes or gas consuming processes while maintaining a packed fixed-bed arrangement The coalescence and release of bubbles from packing that supports the growth of microorganisms is promoted by mechanical action on the packed bed arrangement, in particular by continuous or intermittent vibrations, rotations, or by rocking motions. With p... | 10/27/1992 |
| 5096814 | Macroporous and microporous inorganic carrier for immobilization of cells For the immobilization of micro-organisms and animal cells, in particular for anaerobic processes, such as the purification of waste water or for the biotechnological production of nutrition-essential or pharmacological substances, porous, sintered bodies... | 03/17/1992 |
| 5053328 | Process for the fermentative preparation of L-amino acids from -keto carboxylic acids The preparation of an L-amino acid, particularly valine, leucine, isoleucine, alanine and phenylalanine, from the corresponding -keto carboxylic acid by bacterial fermentation in the presence of ammonium ions is carried out with the aid of thermoph... | 10/01/1991 |
| 5008192 | Enzymatic process for the preparation of optically active cyanohydrins An enzymatic reaction of aliphatic, aromatic or heteroaromatic aldehydes or ketones with hydrocyanic acid to form the corresponding (R)-cyanohydrins or (S)-cyanohydrins is carried out in an aqueous medium in the presence of (R)-oxynitrilase (4.1.2.10) or ... | 04/16/1991 |
| 4971910 | Magnetic device for the fusion of cells Disclosed is a process and device for fusing cells in which the cells are doped with magnetic particles and exposed to a nonhomogeneous magnetic field which permeates the fusion space in such a way that the doped cells collect close together, and then, in... | 11/20/1990 |
| 4935360 | Process for the microbial anaerobic production of acetic acid An anaerobic production of acetic acid by fermentation can employ homoacetogenic bacteria in an aqueous solution of fermentable substrates, especially sugar, with the result of increased acetic-acid concentrations (over 3%), when the substrate solution in... | 06/19/1990 |
| 4915039 | Process for heat-treating refuse and equipment to carry out the process A process for heat-treating refuse comprising the steps of decomposing in a combustion furnace a quantity of refuse into slag, emitted gas and fly dust. The fly dust is separated into a fine dust fraction and a coarse dust fraction. The coarse dust fracti... | 04/10/1990 |
| 4900506 | High-temperature reactor A high-temperature reactor with a reactor core containing fuel elements crossed by a cooling gas circuit comprises a malfunction filter for filtering metal fission products discharged from the fuel elements in the event of core overheating. The filter is ... | 02/13/1990 |
| 4777013 | Nuclear reactor, in particular a high-temperature reactor A high-temperature gas cooled nuclear reactor system comprises a containment building, a concrete reactor pressure vessel inside the containment building, and a safety relief valve connected to the concrete reactor pressure vessel. The spring of the safet... | 10/11/1988 |
| 4771527 | Tool to place a tensioning roller-chain around a flange, and associated tensioning roller-chain A tool, mainly for placing by remote-control a tensioning roller chain or a like tightening element around a flange, in particular in nuclear works, and thereupon to carry out tightening, the ends of the tensioning roller chain being connected by a tensio... | 09/20/1988 |
| 4768315 | Shading and heat insulating device A shading and heating insulating device, especially for greenhouses, has two films of flexible plastic material interconnected to form a type of pouch enclosing a hollow space, which is preferably divided into a plurality of tunnels. A supply pipe is oper... | 09/06/1988 |
| 4634669 | Process and device for the differentiation of particles in a medium Disclosed is a process and device for facilitating the differentiation of particles in a medium. The particles are exposed to a rotating electrical field of variable rotational frequency. By providing a means for adjusting the frequency of the rotating fi... | 01/06/1987 |
| 4626506 | Process and device for the determination of cells secreting cellular contents Disclosed is a process and device for determining which cells of a suspension containing cells of the same species and genus are secreting cellular substances. Such determinations are made by exposing the cells to rotating electrical field forces of varia... | 12/02/1986 |
| 4619144 | Method of and apparatus for gas pressure measurement by the gas-friction principle For measurement of gas pressure a gas-friction vacuum meter is used in whose measuring head a rotating body is suspended in a magnetic field contact-free between electromagnetic drive coils. The rotating body is set in motion with the aid of the drive coi... | 10/28/1986 |
| 4613362 | Method of making magnesium-containing metal granulate for the storage of hydrogen A magnesium-containing metal granulate for the storage of hydrogen in magnesium or in an allow containing magnesium, which includes granulate particles having a catalyst applied on the surfaces thereof.... | 09/23/1986 |
| 4502642 | Process for the separation of coated nuclear fuel particles from a graphitic matrix and installation for implementing the process A treating process is provided for the separation of coated nuclear fuel particles from a graphitic matrix in which the nuclear fuel particles are embedded, and an installation provides for the conditioning of graphitic fuel elements of high-temperature n... | 03/05/1985 |
| 4425811 | Cryogenic pump and air sampler A sampling unit, especially for stratospheric air sampling when carried aloft by balloon or another vehicle, comprises a liquid coolant reservoir within an evacuated vessel and provided with a cryogenically cooled adsorber for maintaining the vacuum. Nozz... | 01/17/1984 |
| 4156394 | Method and apparatus for thermally economical incineration of waste Ducts for carrying off hot gas given off from the combustion chamber of an incinerator are built into the outer walls of a pyrolysis chamber located above the combustion chamber. The pyrolysis chamber has cross-sectional dimensions that are small enough t... | 05/29/1979 |
| 4060592 | Method of making shaped carbonaceous bodies Shaped graphitic or graphite-like carbonaceous bodies are produced by forming binder-coated particles of a carbonaceous filler in a slurry, shaping the slurry or paste of the particles to the desired configuration, drying and cokefying the shaped body. Th... | 11/29/1977 |
| 4059682 | Method of making shaped carbonaceous bodies Shaped graphitic or graphite-like carbonaceous bodies are produced by forming binder-coated particles of a carbonaceous filler in a slurry, shaping the slurry or paste of the particles to the desired configuration, drying and cokefying the shaped body. Th... | 11/22/1977 |
| 4053402 | Process for producing sulfones A process for producing sulfones in which sulfur dioxide is electrolytically transformed into SO2- ions and caused to react with organic compounds having functional groups replaceable by SO2-, in an aprotic org... | 10/11/1977 |