摘要:
Hyaluronic acid oligosaccharides having a size selected from sizes of 4 to 60 saccharides, fractions containing the hyaluronic acid oligosaccharides and having particular physicochemical properties, and drugs containing the same. The hyaluronic acid oligosaccharides of the present invention are extremely useful, because they exert superior pharmaceutical effects as active ingredients of a heat shock protein expression promoter, cell death inhibitor, cell injury inhibitor and cell and tissue protecting agent (e.g., organ preservation agent, antiulcer agent, antihepatopathic agent, IL-10 production promoter or IL-8 production inhibitor) and exhibit high safety.
摘要:
An IL-12 production inhibitor which comprises, as an active ingredient, a keratan sulfate oligosaccharide or a derivative thereof, for example, a keratan sulfate oligosaccharide comprising at least one repeating unit of either one of the disaccharides represented by the following formulas: Gal (6s)-GlcNAc (6s) and Gal (6s)-GlcNAc wherein Gal represents a galactose residue, GlcNAc represents an N-acetylglucosamine residue, 6s indicates that 6-0-sulfate ester is formed at a Hydroxyl group at the 6-position, and - represents a glycosidic linkage.
摘要:
A carbon fiber reinforced carbon composite, obtained by a method comprising impregnating a pitch or a resin into a molded member formed of carbon fibers for densification thereof; forming an impregnated pyrolytic carbon layer by CVI after densification; and forming a coated pyrolytic carbon layer on the impregnated pyrolytic carbon layer by CVD; a method of making the carbon fiber reinforced carbon composite; and a pulling single crystal member made from the carbon fiber reinforced carbon composite.
摘要:
Method and apparatus for removing a jammed billet from a container on a metal extrusion press in which a billet in a container is extruded through a die at the fore end of a die stem by relative movement of the die stem admitted into the container while the billet and container are held stationary relative to each other. Should the billet in the container jam, pressure is applied on the rear end face of the billet in the axial pressing direction thereby extruding the billet in the counter-pressing axial direction.
摘要:
A cold isostatic press of the multiple container type including a press frame and an upper plug movable toward and away from a plurality of shaping containers and adapted to perform an operation of loading or unloading a first shaping material from a container and a pressure-forming operation on a second container concurrently at different positions, characterized in that the cold isostatic press includes a plurality of stationary shaping containers securely mounted on a fixed container frame. The press frame is supported linearly reciprocably or swingably for movement to and from a plurality of containers on the fixed container frame.
摘要:
An ultra-high pressure solid pressing machine of the type having a pair of upper and lower platens mounted in a press frame and movable relatively toward and away from each other, a mold unit interposed between the upper and lower platens and including at least a cylindrical cavity for receiving raw material therein, upper and lower conical surfaces formed around the upper and lower ends of the cylindrical cavity, and upper and lower anvils fitted respectively in the upper and lower conical surfaces through a gasket to compress the raw material in the cylindrical cavity under an ultra-high pressure, characterized in that the pressing machine includes a plurality of mold units stacked one on another between the upper and lower platens through insulators with axes of cylindrical cavities of the respective mold units being in vertical alignment with each other and a current supply control separately connected to the mold units.
摘要:
A hot isostatic press apparatus wherein a material to be processed such as preliminarily shaped metal powder is charged into a high pressure vessel provided with a heater and the material to be processed is pressed by superhigh pressure of fluid or gas sealed into the vessel and heating by a heater. The apparatus includes a main station including a high pressure vessel, a movable cover, a member for moving the material to be processed; one or more auxiliary stations including an inserting station, a preheating station, a removing station, etc.; a sealed tank; and transfer mechanisms for the material to be processed. The apparatus also includes a seal leakage detector.
摘要:
A high pressure apparatus including a container internally provided with a cylindrical space capable of being closed, which container is constituted by a unitary member or an integral assembly of a plurality of members joined throughout its full axial length; a cotter member or a pin inserted radially in the container at one or both axial end portions of the container, which cotter member or pin serves as a structure for bearing an axial force induced by a high pressure load; and a plurality of flexible members wound round the outer periphery of the container axially of the latter to thereby exert a precompression on the entirety of the container.
摘要:
A die forging press which includes a press machine proper adapted to detachably mount a die set having an upper die and a lower die; an auxiliary station having a die opening mechanism for holding and moving the upper and lower dies of the die set toward and away from each other and a heater having a heating head retractably protrudable to a position between the upper and lower dies when opened by the die opening mechanism. A transfer mechanism for transferring a die set between the press machine and auxiliary station is provided.
摘要:
A method for promoting expression of a heat shock protein, or for inhibiting cell injury or cell death, or for treating a disease for which cell or tissue protection is desired, or for promoting production of IL-10, or for inhibiting production of IL-8, by administering an effective amount of a fraction containing a hyaluronic acid tetrasaccharide comprising four saccharide residues and having certain physicochemical properties or by administering an effective amount of an isolated and substantially pure tetrasaccharide of formula (1) described in the application. Methods for preserving an organ.