摘要:
A litz wire comprises three or more insulated strands consisting essentially of an inner conductor and an outer insulating layer on said conductor. The strands are twisted symmetrically with respect to the center line of the wire, so that a current density distribution in the litz wire becomes uniform. Three or more such litz wires are twisted to form a composite litz wire. The composite litz wires are suitable for use in a high-frequency coil.
摘要:
A liquid for setting dental cements comprising a aqueous solution of a copolymer of acryclic acid and maleic acid, tartaric acid and one or more fluorocomplex salt.
摘要:
The nuclear fuel storage rack connection structure is used for connecting a plurality of nuclear fuel storage racks which are stored so as to be arrayed and arranged underwater inside a storage pit, with nuclear fuel assemblies being accommodated. The nuclear fuel storage rack connection structure is provided with an engagement receiving portion which is installed on an outer circumference of the nuclear fuel storage rack and which has an engagement hole opened above or an engagement groove. An engagement member is inserted and engaged with the engagement receiving portion in a vertical direction to connect the mutually adjacent nuclear fuel storage racks.
摘要:
An upper hole 37A and a lower hole 37B are provided at two positions, namely, upper and lower portions, of a side surface of a guide tube 27, and a thimble tube 22 is pressed against an inner circumferential surface of the guide tube 27, by a differential pressure between coolant inside and outside the upper hole 37A and the lower hole 37B. It is preferable that an upper pressure adjustment hole and a lower pressure adjustment hole are provided at two positions, namely, upper and lower portions, of a side surface of an upper core support column 21, and a coolant flowing into the guide tube from an upper end of the guide tube flows out to the outside from inside the guide tube through a gap between the thimble tube and the upper hole, and also flows out to the outside from inside the upper core support column through the upper pressure adjustment hole, and a coolant flowing into the guide tube from a lower end of the guide tube flows out to the outside from inside the guide tube through a gap between the thimble tube and the lower hole, and also flows out to the outside from inside the upper core support column through the lower pressure adjustment hole.
摘要:
To provide a compound which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio. An aminobenzoic acid derivative represented by the general formula (I) or (II) or a pharmacologically acceptable salt thereof: ##STR1## �wherein R.sup.1 represents a group represented by the formula: ##STR2## {wherein A represents a group represented by formula --CH.sub.2 --X--CH.sub.2 -- (wherein X represents O, >N--R.sup.6 or>CHR.sup.7 (wherein R.sup.6 represents lower alkyl and R.sup.7 represents hydrogen or lower alkoxy)), etc.; D and E each represents a group represented by formula --(CH.sub.2).sub.3 --, etc., and R.sup.2 represents lower alkyl, etc.}; R.sup.9 represents alkynyl; R.sup.10 represents amino, etc-; R.sup.11 represents halogen; R.sup.12 and R.sup.13 each represent lower alkyl; a is an integer of 1 to 5; and b is an integer of 0 to 5!.
摘要:
An apparatus comprises a condenser such as a condenser for reducing power source noise to be implemented on a board, a conductor for supplying a current passing through the condenser, and a current path comprising conductors and components which are installed in the neighborhood of at least one of the condenser and conductor and the effective inductance component of the condenser is reduced by passing a current through the current path in the phase opposite to that of a current passing through the condenser and conductor.
摘要:
To provide a compound which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio. An aminobenzoic acid derivative represented by the general formula (I) or (II) or a pharmacologically acceptable salt thereof: ##STR1## �wherein R.sup.1 represents a group represented by the formula: ##STR2## {wherein A represents a group represented by formula --CH.sub.2 --X--CH.sub.2 -- (wherein X represents O, >N--R.sup.6 or >CHR.sup.7 (wherein R.sup.6 represents lower alkyl and R.sup.7 represents hydrogen or lower alkoxy)), etc.; D and E each represents a group represented by formula --(CH.sub.2).sub.3 --, etc., and R.sup.2 represents lower alkyl, etc.}; R.sup.9 represents alkynyl; R.sup.10 represents amino, etc.; R.sup.11 represents halogen; R.sup.12 and R.sup.13 each represent lower alkyl; a is an integer of 1 to 5; and b is an integer of 0 to 5!.
摘要:
An aminobenzoic acid derivative represented by the following general formulas (I), (I-2) or (I-3), or a pharmacologically acceptable salt thereof, which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio and which is efficacious as a drug for patients with gastrointestinal unindentified complaints: ##STR1## wherein R.sup.1 represents a group such as an alkynyl or cyanoalkyl group; R.sup.2 represents a group such as an amino or acylamino group; R.sup.3 represents a halogen atom; X represents --O-- or --NH--; and A represents an oxygen or sulfur atom.
摘要:
A shielding method which utilizes a three dimensional structure and is effective to a source of the electromagnetic radiation noise, and a circuit board employing the same are obtained. Further, for the purpose of making the shielding function at an enclosure level unnecessary and realizing the recycling of enclosure materials by using this circuit board, in a circuit board structure having at least a signal layer, a power source layer and a ground layer, a signal line on the signal layer which is sandwiched between the two conductor layers made up of the power source layer and the ground layer, or the power source layers or the ground layers, is enclosed in a three dimensional manner with the conductor layers, thereby to form a single or double electrical closed loop current path or paths. By adopting this structure, there is obtained the effect that the electromagnetic radiation noise radiated from the circuit board is greatly reduced. In addition, as a result, there is obtained the effect that since the shielding processing required for the enclosure becomes unnecessary, the enclosure materials can be recycled.
摘要:
A quinone derivative useful in the treatment of hepatic diseases defined by the general formula: ##STR1## where R1 is selected from the group consisting of alkyl, alkenly, alkynyl or heterocycle, R2 is a substituted nitrogen containing radical wherein the substituents on said nitrogen are selected from the group consisting of hydrogen, substituted or unsubstituted lower alkyl or heterocycles, and where said nitrogen may be a ring heteroatom, and R3, R4 and R5, may be the same or different and each are hydrogen, lower alkyl or lower alkoxy groups.