摘要:
A vacuum interrupter comprises a vacuum vessel, at least a pair of electrical conductor rods extending from interior to exterior of the vacuum vessel, and at least a pair of separable composite electrodes respectively connected to the tip of the electrical conductor rods. Each of the composite electrodes has a main electrode, a parallel magnetic field generator for generating a parallel magnetic field which acts on an arc created when one main electrode is separated from the other, and a magnetic field suppressor of high electrical conductivity embedded in a central portion of the main electrode for partly cancelling the parallel magnetic field. In the vacuum interrupter, when the parallel magnetic field permeates through the magnetic field suppressor, eddy current flow is caused therein. A magnetic field due to the eddy current has a polarity opposite to that of the parallel magentic field and partly cancels the parallel magnetic field. Intensity of the parallel magnetic field then becomes smaller at the central portion than that at the other peripheral portion, and the arc tends to shift from the magnetic field suppressor to the outer peripheral portion, thereby preventing fusion damage of the magnetic field suppressor.
摘要:
A vacuum interrupter of parallel magnetic field electrode type comprising a pair of separatable arc electrodes disposed within a vacuum vessel, with each being provided on its back side with a conductive rod extending outwardly of the vacuum vessel. Coil electrodes are electrically connected between the associated arc electrode and rod for applying parallel magnetic fields to arc, and slits are formed in the arc electrodes for suppressing eddy currents of the arc electrodes resulting from the parallel fields. A reinforcement member of an electric conductivity higher than a main surface portion of the arc electrode is provided on the back side of the arc electrode opposite to said main surface portion so that the resulting arc current flows uniformly through the reinforcement member so that a higher interruption efficiency can be obtained for the vacuum interrupter.
摘要:
Disclosed is a vacuum switch having a container and a pair of contact electrodes, and a method of manufacturing the same, in which at least one of the contact electrodes is constituted by a member made up of a skeleton containing cobalt as its principal component with pores into which a copper alloy containing copper as its principal component, silver, and a low melting point and high vapor pressure element having substantially no or very low solid-solubility with respect to the copper at a room temperature is impregnated.
摘要:
Provided is a peptide including the following amino acid sequence. Tyr-Xaa0-Xaa1-Tyr-Tyr-Xaa2-Xaa3-Tyr-Xaa4-Xaa5-Xaa6-Xaa7-Xaa8-Xaa9-Xaa10-Xaa11 (SEQ ID NO: 4: wherein Xaa0, Xaa1, Xaa2, Xaa3, Xaa4, Xaa5, Xaa6, Xaa7, Xaa8, Xaa9, Xaa10 and Xaa 11 represent any amino acid) or Tyr-Asn-Asp-Tyr-Tyr-Tyr-Tyr-Cys-Tyr-Arg-Asp-Tyr-Asp (SEQ ID NO: 20).
摘要翻译:提供了包含以下氨基酸序列的肽。 Tyr-Xaa0-Xaa1-Tyr-Tyr-Xaa2-Xaa3-Tyr-Xaa4-Xaa5-Xaa6-Xaa7-Xaa8-Xaa9-Xaa10-Xaa11(SEQ ID NO:4:其中Xaa0,Xaa1,Xaa2,Xaa3,Xaa4,Xaa5 ,Xaa6,Xaa7,Xaa8,Xaa9,Xaa10和Xaa11表示任何氨基酸)或Tyr-Asn-Asp-Tyr-Tyr-Tyr-Tyr-Cys-Tyr-Arg-Asp-Tyr-Asp(SEQ ID NO: )。
摘要:
There is provided a driving device 1 in which an electromechanical transducer is used and which has a high drive efficiency, having an electromechanical transducer 4 that is extended and contracted by application thereto of voltages, a drive shaft 6 having one end fixed by adhesive 5 to the electromechanical transducer 4, and a movable member 7 that is frictionally engaged on the driving shaft 6, an expression 8≧E/t≧0.48 where t (μm) is a thickness of the adhesive and E (GPa) is a modulus of longitudinal elasticity of the adhesive is satisfied by mixing into the adhesive 3, 5 particulates 10 that have diameters not smaller than 1 μm and not larger than 5 μm.
摘要:
A paper sheet processing device (1) for processing paper sheets while carrying the paper sheets, comprising a device body (10), a carrier means (2) for carrying the paper sheets one by one, a carrier driving means for driving said carrier means, processing device parts (4A, 4B, 4C) which are installed in a carrying route (20) formed of the carrier means and which process the paper sheets, and processing driving means for driving the processing device parts. The device is characterized in that the processing device parts are installed detachably from the device body.
摘要:
An object of the invention is to improve polarization dependence of insertion loss (PDL) in an ultraviolet light induced optical fiber grating. In the invention, in a method of manufacturing an optical fiber grating with a plurality of grating sections arranged intermittently at a predetermined period along the longitudinal direction, by irradiating, from the side of an optical fiber having locations made of a material wherein the refractive index rises when irradiated by light of a specific wavelength, light of this specific wavelength along the length direction of the optical fiber at a predetermined period, causing the refractive index of the irradiated sections to rise, high refractive index sections are formed by irradiating light evenly onto the optical fiber around the circumferential direction thereof.
摘要:
Antisense oligonucleotide sequences which enable the measurement of the distribution and structure of antisense oligonucleotide drugs in the body, with lapse of time, and a method of detecting these sequences are provided. The antisense chains have a natural or non-natural nucleotide or peptide nucleic acid as a structural unit in which carbon atoms and nitrogen atoms are substituted by 13C and 15N, respectively, and the antisense chains can be detected by nuclear magnetic resonance spectroscopy (NMR) such as 15N—1H or 13C—1H hereto nuclear multiple quantum coherence spectroscopy.
摘要:
An electrode for a vacuum circuit breaker provided with a connecting portion made of a material having the same resistivity as the arc running face portions across the corresponding arc guiding channel at the outer circumferential end thereof, wherein when the outer diameter of the connecting portion is D.sub.1 and the inner diameter of the connecting portion is D.sub.2, the width of the connecting portion is designed so that the ratio D.sub.2 /D.sub.1 is in a range of more than 0.9 and less than 1.0. An arc generated between the electrodes is magnetically driven over the arc running face portions via the connecting portion so that the current interrupting capacity of the electrode is increased and the size and weight of the electrode are reduced.
摘要:
A manufacturing method for erbium doped silica, having a soot formation process, in which a silica glass soot is deposited on a seed rod for forming a soot preform in a porous state on the seed rod, a dopant impregnation process, wherein the soot preform is impregnated with at least an erbium compound, and a preform formation process, wherein this soot preform impregnated with a dopant is heated and rendered transparent. The dopant impregnation process is provided with an operation in which the soot preform obtained in the soot formation process is dipped in a solution containing an erbium compound, an aluminum compound, and a phosphorus compound; this is then desiccated, and soot preform which is impregnated with the erbium compound, the aluminum compound, and the phosphorus compound is obtained.