Abstract: A process for producing a preformed wire from silicon carbide fiber-reinforced aluminum, which comprises silicon dipping a bundle of silicon carbide fibers for a period of 60 seconds or shorter in a melt of a eutectic alloy composed of aluminum and 5.0 to 7.0 wt. % of nickel added thereto which melt is kept at or below the liquidus temperature of the melting point thereof plus 50.degree. to impregnate said fiber bundle with said alloy.

Abstract: Novel artificial or simulated stone facing formed on a substrate with surface-cured finish conformance to the finish of the innerface of a thin flexible film air-sealed to the outer surface of the facing before curing.

Abstract: Filters suitable for microelectronic uses and the like may be prepared directly on substrates either as monolithically integrated filters or as hybrid filters using a soluble dye material in a resin. The resin may be applied to microelectronic substrates and patterned by conventional microphotolithographic processes.

Abstract: Polykis-azobenzenes as an important coloring material can be prepared by irradiating diazidobenzene or a derivative thereof with ultraviolet light in the form of a solution in an organic solvent, in the form of a thin film or fine powder or in the form of vapor under reduced pressure.

Abstract: Minute spherical bismuth (III) oxide particles are produced by adding a monocarboxylic acid to an aqueous solution containing trivalent bismuth ions thereby inducing formation of a bismuth-monocarboxylic acid complex in the aqueous solution, further adding an alkali to the aqueous solution thereby inducing precipitation of the complex, separating the precipitated complex from the solution, and firing the separated complex.

Abstract: A new process for the preparation of a 3-(4'-bromobiphenyl-4-yl)tetralin-1-one known as a key intermediate for the production of rodenticides and clinical medicines is provided. The title compound is prepared from P-bromobiphenylbenzylketone in three steps, wherein one of key inventions is dehydroxylation of 3-(4'-bromobiphenyl)-3-hydroxy-4-phenylbutyric acid ethyl ester using trialkylsilane in trifluoroacetic acid. This new process offers a high yield with a facile way and is more suitable for a commercial production than the prior art methods.

Abstract: A graphite structure, which is of light weight and excellent elasticity and has a packing density of 0.5 g/cm.sup.3 or lower and a recovery of 50% or higher at a compressibility of 10 to 90%, is obtained by treating a carbonaceous material with nitric acid or a mixture of nitric and sulfuric acids and, then, heat-treating the obtained product at a temperature of 2,400.degree. C. or higher to graphitize the same.

Abstract: The present invention is a process for pultruding fiber reinforced phenolic resin products, in which the phenolic resin normally has a viscosity ranging from 3,000 to 5,000 cps at 25.degree. C. and is heated to maintain a viscosity ranging from 800 to 2,000 cps during the impregnating step. A die having a temperature profile which is particularly suitable for use in the present process is also disclosed, which has substantially three different heating temperatures along the pultrusion direction. Furthermore, a postcuring treatment for improving the mechanical and physical properties of the pultruded products is also disclosed in the present invention.

Abstract: An antifreeze composition for use in aluminum internal combustion engines is disclosed. It is comprised of from 0.05 percent to 0.5 percent silicate, from 0.07 percent to 0.35 percent nitrate, from 0.2 percent to 2.0 percent phosphate, from 0.5 percent to 4.0 percent benzoate, from 0.1 percent to 1.0 percent molybdate, from 0.02 percent to 0.3 percent vanadate, from 0.05 percent to 0.3 percent triazole, and from 100 ppm to 5000 ppm organosilane stabilizer for the silicate. Organic amines and borates are excluded in the compositions and the pH of the compositions is from about 7 to about 9.

Abstract: An optical nondestructive testing method of composite materials utilizes optical interferometry to find the resonant vibration from at least one surface of the target part of an object being inspected, and also determines the resonant frequency at that time. Another resonant frequency exhibiting the same resonant vibration is then obtained from the rear surface of the part of the object being inspected and the two resonant frequencies are used to derive the depth of defects in the object.

Abstract: A semiconductor device comprising a semiconductor element, a support member for supporting the semiconductor element on the support member. The bonding layer comprises element and a bonding layer for bonding the semiconductor a hard layer of a high-viscosity bonding agent which has a high viscosity before curing and which has an irregular free surface defining projections and cavities, and a soft layer of a low-viscosity bonding agent which has a low viscosity before curing and disposed within the cavities in the irregular free surface of the hard layer to fill them. The hard layer defining a portion of the bonding surfaces and the soft layer defining the remaining portion of the bonding surface provide a continuous hybrid bonding surface for the bonding layer. A process for bonding a semiconductor element to a support member is also disclosed.

Abstract: A permeable membrane through which water or its vapor permeates selectively nd which contains a polyion complex formed by the association by an ionic bond between an anionic polymer and a cationic polymer on the surface of the membrane and/or in the membrane. This membrane is useful in the separation of water from an aqueous solution of an organic substance or a gaseous mixture of water with an organic substance, and exhibits excellent resistance to solvent, particularly water, and a high permeation rate and a high separation coefficient.

Abstract: Muconic acid is obtained from the culture of strains of Arthrobacter sp. mutant strains, strains belonging to Corynebacterium acetoacidophilum, Corynebacterium lilium, genus Brevibacterium or genus Microbacterium.

Abstract: A fuel gas is produced from an aqueous acetone solution by causing the aqueous acetone solution to contact powdered silicon and exposing the resultant product of this contact to light.

Abstract: The invention relates to a procedure of obtaining a lipid mixture rich in the content of .gamma.-linolenic acid or glycerides thereof from cultured fungus bodies of a filamentous Mortierella fungus. The invention proposes, on one hand, to fractionally extract the lipid mixture from the fungus bodies under mechanical disintegration in two steps first with an alcohol containing water to give a fraction rich in the polar lipids and then with a hydrocarbon solvent, e.g. hexane, to give a fraction lean in the polar lipids. The invention proposes, on the other hand, to enrich a lipid mixture relative to .gamma.-linolenic acid by fractionally crystallizing a part of a starting lipid mixture in a solution of a specified solvent so that the uncrystallized fraction in the mother liquor contains a lipid mixture in which the content of .gamma.-linolenic acid is remarkably increased in comparison with the starting lipid mixture.

Abstract: In a method of manufacturing a semiconductor device comprising melting an amorphous or polycrystalline first semiconductor layer formed on the surface of a first dielectric layer by irradiating energy rays thereon, and converting the same into single crystals by the subsequent lowering of the temperature and forming a second dielectric layer and a second semiconductor layer on the first semiconductor layer. Energy rays are irradiated under the condition capable of melting the first semiconductor layer through the second semiconductor layer and the second dielectric layer and, after the completion of the conversion into single crystals, the second semiconductor layer and the second dielectric layer are eliminated through etching.

Abstract: The present invention is directed to recombinant baculoviruses which encode fusion polyhedrin proteins capable of forming occlusion bodies containing foreign peptides. The recombinant baculoviruses of the invention are formed by insertion into or replacement of regions of the polyhedrin gene that are not essential for occlusion body formation, with foreign DNA fragments by recombinant DNA techniques. The recombinant occlusion bodies produced in accordance with the present invention have uses in vaccine formulations, immunoassays, immobilized enzyme reactions, as biological insecticides, and as expression vectors.

Abstract: A multi-layer molded article having good interlayer adhesion and exhibiting igh modulus even when its thickness is large, which comprises at least one layer formed by an anisotropic melt-forming polyester having structural units selected from the following structural units (I) to (III), the molar ratio of (I)/[(I)+(II)+(III)] being in the range of 20 to 100 mol %: ##STR1## wherein X represents at least one group selected from ##STR2## Y represents at least one group selected from ##STR3## and Z represents at least one group selected from ##STR4##

Abstract: This invention relates to a pharmaceuticals which contains thyroid hormones and improved method which extracts thyroid hormones from animal thyroid gland. The pharmaceuticals of this invention is used to treat senile cortical cataract. There are some effect of long term on other cataract except subcapsular cataract. The pharmaceuticals of this invention is applied in the form of eyedrops or injection.

Abstract: In an MONOS type nonvolatile semiconductor memory comprising a channel forming semiconductor region between source and drain regions in a surface of a substrate; a tunnel insulating film formed on the channel forming semiconductor region in the surface of the substrate, the tunnel insulating film permitting charge-injection; a silicon nitride film formed as a second insulating film on the tunnel insulating film; a silicon oxide film formed as a third insulating film; and a conductive electrode formed on the silicon oxide film, the silicon nitride film has a composition close to a stoichiometric value of Si.sub.3 N.sub.4 at a portion near an interface with the tunnel insulating film and has a composition of excess silicon at a portion of the thickness of the same film except near the interface with the tunnel insulating film.