Abstract: A method of producing a superconductor of metal oxides which includes subjecting an organic solvent solution containing (a) an alkoxide of a rare earth element, (b) an alkoxide of an alkaline earth metal and (c) copper alkoxide or cupric nitrate to hydrolysis in the presence of water and nitrate ions, thereby forming a mixture containing a gel-like substance. The gel-like substance is, after being dried and formed into a desired shape, pyrolyzed at a temperature of 600.degree.-950.degree.C. to form a superconductor of oxides of the rare earth, the alkaline earth metal and copper.

Abstract: The present invention provides an oxide superconductor which has a relatively high transition temperature T.sub.c. This superconductor has the chemical formula (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z wherein R is at least one rare earth element selected from the group consisting of Tm, Yb and Lu, x is with in the range of 0.1.ltoreq..times.0.5, y is within the range of 0.1.ltoreq. y .ltoreq.0.4 and z is within the range of 0.05 .ltoreq. z .ltoreq.(x/2+0.5). The invention further provides a method for producing the oxide superconductor which comprises firing a composition of the formula (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z wherein R is at least one rare earth element selected from the group consisting of Tm, Yb and Lu, x is within the range of 0.1 .ltoreq..times..ltoreq.0.5 and y is within the range of 0.1 .ltoreq.y .ltoreq.0.4 at a temperature of from 750.degree. C. to the melting temperature of the composition under an oxygen partial pressure P(O.sub.

Abstract: A train apparatus for removing thick blister buildups from an underground fiber conduit used for housing power cables. The train apparatus includes three or more cutting units including an initial, a middle and a final cutting unit having smallest, medium and largest overall cutting diameters respectively. Each cutting unit having a lead guide and six cutting stars each having four cutting blades where the cutting blades on one cutting star are offset with the cutting blades on the other cutting stars. When pulled through the fiber conduit, the lead guide of the cutting units will prevent the cutting unit from going off the center of the conduit and digging itself into the interior sidewall of the conduit. The initial, middle and final cutting units will remove respectively the surface, the intermediate and the underneath portions sequentially.

Abstract: An apparatus for producing a superconducting oxide film with stable properties by metal organic chemical vapor deposition, suitable for mass production, is provided with a gas analyzer comprising a differential pressure meter 38 between a raw material gas collector tube 35 provided in a transfer line 8 for leading a raw material gas to a film forming chamber 10 and a bypass line 37, a dilution gas line 49 interlocked with the differential pressure meter 38 and for leading a dilution gas to the raw material gas collector tube 35, a gas separation column 42 branched from the bypass line, a gas detector 31 connected to the gas separation column 42, flow rate controllers 50 for carrier gases 43 and 45 and a thermostat 13 for heating all the lines.

Abstract: A superconducting material is disclosed which includes oxides of metals having the following composition:(Pb.sub.1-z Cu.sub.z) ((Sr.sub.1-y Ba.sub.y).sub.1-v Ca.sub.v).sub.2 (A.sub.1-x Ca.sub.x)Cu.sub.2wherein A is at least one element selected from the group consisting of Y, La, Nd, Sm, Eu, Gd, Ho, Er, Yb and mixtures of at least one of Y, La, Nd, Sm, Eu, Gd, Ho, Er and Yb with at least one of Tb, Tm and Lu, x, y, v and z are numbers satisfying the following conditions:0.ltoreq.x.ltoreq.0.4,0.1.ltoreq.y<0.7,0.ltoreq.v.ltoreq.0.2x, and2y-0.4.ltoreq.z.ltoreq.2y+0.2with the proviso that 0.6-x.ltoreq.z<1.0 when 0.ltoreq.x.ltoreq.0.2 and that 0.4.ltoreq.z<1.0 when 0.2.ltoreq.x.ltoreq.0.4. The superconducting material is produced by providing a blend of compounds of the metals in the metal oxides, and heating the blend at an oxygen partial pressure P of at least 0.001 atm and temperature of (860+40logP) .degree.C. to (1060+40logP) .degree.C.

Abstract: A superconductive material is disclosed which has the following composition:(R.sub.1-x Ca.sub.x)(Ba.sub.1-y La.sub.y).sub.2 Cu.sub.4 O.sub.8wherein R is at least one element selected from Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu, x is a number in the range of 0-0.3 and y is a number in the range of 0.001-0.3 with the proviso that y is not greater than 0.2 when x is not 0.

Abstract: Disclosed is a human TNF derivative with a reduced tendency to cause adverse side effects that is obtained by replacing the 31st and 32nd arginine residues from the N-terminal of the amino acid sequence of human TNF, which has a potential for causing serious adverse effects, with asparagine residue and threoine residue, respectively, as well as a method of preparing the same utilizing recombinant DNA technology.

Abstract: A method for producing an oxide superconductor formed according to a chemical composition formula (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.4 O.sub.8 and having a transition temperature of 77K or above, comprising the step of causing a reaction between (R.sub.1-x Ca.sub.x)(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.3 O.sub.7-z and a Cu material such as CuO, wherein R stands for one or more rare earth elements selected from the group consisting of Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm and Yb, and wherein 0.01.ltoreq.x.ltoreq.0.25, 0.ltoreq.y.ltoreq.0.5, and 0.ltoreq.z.ltoreq.1. The advantage of this production method is that this production method does not require a hot static pressing process which takes a long time.

Abstract: Disclosed is a DNA fragment comprising a base sequence coding for a peptide occurring in human atrium cordis and having diuretic action or a precursor of the peptide, plasmids containing the DNA fragment, microorganisms transformed with the plasmid, and a process for production of the peptide using the transformant.Also disclosed is a new peptide consisting of 126 amino acids occurring in human atrium cordis and a precursor thereof. The peptide has notable diuretic action and hypotensive or antihypertensive actions.

Abstract: A superalloy disk to be utilized for a rotating body of an aircraft or turbine engine is manufactured by a casting mold provided with a cavity having an inner shape for forming a disk. A molten bath of superalloy melted under a vacuum or an inert gas atmosphere is poured into the casting mold under a vacuum or an inert gas atmosphere and the casting mold with the molten bath is stirred so as to prepare a rough casting of fine crystal grains by applying an external force such as an eccentric centrifugal force. The thus produced disk material may be heated thereafter. The rough casting is formed of crystal grains less than 100 .mu.m in diameter, and a rate of strain during the rotational forging is less than 10.sup.0 /sec. amd more than 10.sup.-2 /sec.

Abstract: A radio telephone switching control system having control channels which transmit/receive control data betweeen a plurality of movable terminals and a radio base station. The control channels include a mono-functional channel for access which is dedicated to access during data transmission/receiving by calling from the terminals. The control channel also includes a bi-functional channel for paging and access usable as a channel for paging one of the terminals as well as for access. The system contains a base station with a fault detector. Only one kind of control channel information is broadcast in the same service zone. All of the movable stations existing in same service zone scan the first or second range to decide the channel for access or paging according to the received control channel information. The system also sets the mono-functional channel for access and the bi-functional channel for paging and access, when a fault is not detected.

Abstract: The present invention provides a vector plasmid capable of efficient tumor necrosis factor (TNF) production, a process capable of efficient TNF production in a host transformed with said plasmid and a composition containing the TNF produced by said process.The novel plasmid of the present invention is characterized by having inserted therein a DNA fragment that has a phage-derived promoter region upstream of a structural gene for TNF and in which a DNA fragment containing an E. coli gene-derived transcription termination coding base sequence (terminator) is joined immediately downstream of a base sequence coding for the termination of translation of said structural gene.

Abstract: An apparatus for manufacturing a multielement sintered material is provided, more particularly an appartus of the automated type which weighs and mixes predetermined amounts of powdery elements, molds the mixed elements and then sinters them.

Abstract: A process for the production of a physiologically active peptide (a target peptide) containing cysteine residue, comprising the steps of:(1) culturing Escherichia coli transformed with a plasmid capable of expressing a fusion protein under control of a promoter of E.

Abstract: Disclosed is a human TNF derivative with a reduced tendency to cause adverse side effects that is obtained by replacing the 31st and 32nd arginine residues from the N-terminal of the amino acid sequence of human TNF, which has a potential for causing serious adverse effects, with asparagine residue and threoine residue, respectively, as well as a method of preparing the same utilizing recombinant DNA technology.

Abstract: A record disk has a read-only track area and a writable track area in which a guard band of a sufficient width is formed between such two areas for prevention of erroneous writing into the read-only track area during data writing into the writable track area. Apparatus using such disk employs a pair of heads with opposite azimuth angles and erasing of a track is first checked to prevent a read-only track from being erased. During such track erasing, a track recorded by a head with one azimuth is erased by a head with the other azimuth.

Abstract: The present invention provides a vector plasmid capable of efficient tumor necrosis factor (TNF) production, a process capable of efficient TNF production in a host transformed with said plasmid and a composition containing the TNF produced by said process.The novel plasmid of the present invention is characterized by having inserted therein a DNA fragment that has a phage-derived promoter region upstream of a structural gene for TNF and in which a DNA fragment containing an E. coli gene-derived transcription termination coding base sequence (terminator) is joined immediately downstream of a base sequence coding for the termination of translation of said structural gene.

Abstract: A printed circuit board laminator adapted for laminating a film on the surfaces of the baseboards of printed circuit boards. The laminator comprises a laminating mechanism which can continuously laminate a long film on the continuously fed baseboards. The laminator comprises a constant-gap baseboard feed mechanism, which can arrange the baseboards with a constant gap therebetween, and continuously feed them to the laminating mechanism. The laminator further comprises an access hole-making unit which can make access holes in the film to be aligned with indexing holes in the baseboards, prior to the lamination. The laminator also comprises a cutting mechanism which can cut the film laminated to the boards for separating the latter from each other.

Abstract: An adhesive composition which shows improved stickiness and adhesive property at room temperature and exhibits an excellent adhering ability in a short time is prepared by compounding(a) an acrylonitrile-containing copolymer having carbon-to-carbon double bond(b) a phenol-polysulfide resin(c) a metal oxide, and(d) a polyfunctional electrophilic reactive compound containing at least two electrophilic reactive groups.

Abstract: A pneumatic radial tire having a ratio of the radius of curvature of inner surface of crown portion to the maximum width of the tire of 1.2/1 to 2.5/1, and provided at the sidewall portion with an annular protection rib projecting over the entire circumference of the tire and having a specifically limited cross-sectional shape is excellent in the puncture resistance at both of the crown portion and the sidewall portion.