Abstract:
A enameled wire having 100 parts by weight of a polyamide-imide resin, 1 to 5 parts by weight of a lubricant, 1 to 200 parts by weight of a masking agent-stabilized isocyanate, and 1 to 30 parts by weight of a silane coupling agent are dissolved or dispersed in a solvent to prepare a coating composition. The coating composition is then coated directly or through other insulator on the circumference of a conductor, and the coating is then baked to form a lubricating layer.
Abstract:
In a process for producing a halogenated organic compound wherein a hydrogen halide is added to an organic compound having an aliphatic carbon-carbon unsaturated bond, a catalyst is used, which is an organic compound having at least two polar groups in the molecule each containing a heteroatom having an unshared electron pair, and having no aliphatic carbon-carbon unsaturated bond. A typical example of the catalyst is a polyoxyalkylene glycol or a polyol having at least 3 hydroxyl groups.
Abstract:
In an unshielded twisted pair cable, a predetermined number of pairs which are twisted by a predetermined lay-length are covered by a protective sheath. Insulations for insulating conductors for the pairs and the protective sheath are wholly or partially of halogen free polymer having a low dielectric loss tangent and flame-retarding properties. The insulations have a dielectric loss tangent of less than 1.times.10.sup.-2 at 150 MHz and a 2% modulus of at least 0.3 kgf/mm.sup.2.
Abstract:
The invention relates to a solid oxide electrolyte fuel cell (SOFC) which can be used as a cell for water electrolysis, CO.sub.2 electrolysis and other electrolyses, as well as for power generation. In a SOFC in which both surfaces of a power generation film comprising three layers of a fuel electrode, a solid electrolyte, and an oxygen electrode are formed with a number of dimples, the thickness of a yttria-stabilized zirconia film that constitutes the solid electrolyte is 5 to 100 .mu.m, and the thickness of an oxygen electrode material that constitutes the oxygen electrode which is provided on one side of the yttria-stabilized zirconia film is 200 to 2,000 .mu.m. As a result, the power generation performance can be greatly improved and a sufficiently strong oxygen electrode material prevents a thin yttria-stabilized zirconia film from being damaged in manual operations.
Abstract:
A method for fabricating a semiconductor device comprises the steps of providing a first insulator layer on the top surface of a substrate so as to cover a first surface region defined on the top surface of the substrate; providing a second insulator layer on the substrate so as to cover a second surface region defined on the top surface of the substrate such that the second insulator layer further covers the first insulator layer, forming a first hole acting as an alignment mark and a second hole acting as a contact hole throughout the second insulator layer respectively in correspondence to the first surface region and the second surface region simultaneously by an etching process applied to the second insulator layer. The etching process is performed such that the etching proceeds into the first insulator layer with a first etching rate when forming the first hole and such that the etching proceeds into the substrate with a second etching rate smaller than the first etching rate when forming the second hole, and thereby the first hole penetrates into the first layer at least for a first depth and the second hole penetrates into the substrate for a second depth which is smaller than the first depth. Further a conductor material is deposited on the second insulator layer including a part of the second insulator layer corresponding to the first surface region and another part of the second insulator layer corresponding to the second surface region to form a conductor layer such that the second hole is filled by the conductor material with a substantially flat top surface being formed at a part of the conductor layer covering the second hole while the first hole is filled only partially.
Abstract:
A chromosomal DNA sequence which codes for human lymphotoxin, a lymphotoxin expression vector which contains a DNA sequence wherein a chromosomal DNA sequence coding for human lymphotoxin and promoter region which functions in animal cell are linked together, lymphotoxin resistant cell line, transformed animal cell culture which is formed by transforming cultured animal cell with a lymphotoxin expression vector which contains a chromosomal DNA sequence coding for human lymphotoxin and, a process for preparing human lymphotoxin, which comprises transforming cultured animal cell with a lymphotoxin expression vector which contains a chromosomal DNA sequence coding for human lymphotoxin, culturing the transformed cell culture to produce human lymphotoxin, and collecting the human lymphotoxin.According to the present invention, LT which is expected for application as the antitumor agent can be produced effectively in a large amount.
Abstract:
A semiconductor layer structure includes an alloy layer of aluminum and silicon formed on a silicon substrate. The concentration of silicon contained in the aluminum-silicon alloy layer is within a range of 10 to 75 weight percent. A barrier layer is formed on top of the aluminum-silicon alloy layer, and a metallic layer is formed on top of the barrier layer.
Abstract:
A rifamycin derivative having the formula (I): ##STR1## wherein R.sup.1 is hydrogen atom, methyl group or ethyl group, R.sup.2 is an alkyl group having 1 to 4 carbon atoms, and A is a group having the formula: ##STR2## in which n is an integer of 3 to 5, or group having the formula: ##STR3## in which R.sup.3 is a alkyl group having 1 to 5 carbon atoms; or a salt thereof. The rifamycin derivative (I) exhibits a strong antibacterial activity against Gram-positive bacteria and acid-fast bacteria, and also exhibits a strong antibacterial activity against tubercle bacilli.
Abstract:
A semiconductive resin composition comprising 100 parts by weight of a polymer component comprising an ethylene-based copolymer, an ethylene-propylene rubber, and a low molecular weight polyethylene having an average molecular weight of 1,000 to 4,000 and 40 parts by weight or more of electroconductive carbon black.
Abstract:
A method of producing a semiconductor device comprising the steps of: forming a window or contact hole in an insulating layer to expose a portion of a semiconductor substrate or a lower conductor line; forming semiconductor material (silicon) in the window; substituting the material with a metal (tungsten) by reaction of the semiconductor material with a metal compound (WF.sub.6 gas); and forming a conductor line over the metal within the window.