摘要:
The present invention relates to a defect-free oxide high-critical temperature superconductor acicular crystal, that is, an oxide high-critical temperature superconductor acicular crystal that is substantially a perfect crystal and also relates to a method for producing the same, wherein such a crystal is essential for achieving superconducting electronic devices. The oxide high-critical temperature superconductor acicular crystal of the present invention includes an acicular crystal having a Bi2Sr2Ca2Cu3O10 (Bi-2223) crystal structure and is grown from a powder compact by heat-treating the powder compact in an oxygen atmosphere, wherein the powder compact contains an oxide having the Bi-2223 crystal structure and TeO2, CaO, or (SrCa)3TeO6. The achievement of the acicular crystal having the Bi-2223 crystal structure contributes to the development of superconducting electronic devices that have been theoretically proposed but have not been achieved.
摘要翻译:本发明涉及一种无缺陷氧化物高临界温度超导体针状晶体,即基本上是完美晶体的氧化物高临界温度超导体针状晶体,并且还涉及其制造方法, 晶体对于实现超导电子器件是至关重要的。 本发明的氧化物高临界温度超导体针状晶体包括具有Bi 2/2 Sr 2 Ca 2 Cu 2 O 3的针状晶体, (Bi-2223)晶体结构,并且通过在氧气氛中对粉末压块进行热处理从粉末压块生长,其中粉末压块包含具有Bi的氧化物 -2223晶体结构和TeO 2,CaO或(SrCa)3 3 TeO 6。 具有Bi-2223晶体结构的针状晶体的实现有助于理论上提出但尚未实现的超导电子器件的发展。
摘要:
A high temperature oxide superconducting wire is provided which is capable of preventing metal located on the outer periphery of the superconducting wire from diffusing into a superconductor to achieve restriction of reduction in the critical current density. The high temperature oxide superconducting wire includes a high temperature oxide superconductor 1, a sheathing body 2 formed of material containing silver for coating the high temperature oxide superconductor 1, a heat-resistant oxide ceramic material 3 for coating the sheathing body 2, and a coating body 4 which is inactive relative to the heat-resistant oxide ceramic material 3 in a high temperature oxidative atmosphere.
摘要:
There is provided a swing type multi-way switch in which light irradiated from a light source built therein sufficiently illuminates substantially all over the rear surface of an operation knob. The switch comprises: a box-like operation knob; a square frame-shaped holder disposed in the inside of the operation knob; a case having an outer square tube-like member and an inner square tube-like member coaxially formed; and a base plate on which a light source and a plurality of switch elements are to be mounted. The operation knob is rotatably supported by the holder disposed in the inside of the operation knob, and the holder is rotatably supported by the inner square tube-like member of the case by a second axis for rotating movement orthogonal to the axis for rotating movement of the operation knob. The side wall of the operation knob and the side wall of the holder are disposed in a groove formed between the outer square tube-like member and the inner square tube-like member, and the light source is disposed on substantially the central portion of the inner square tube-like member.
摘要:
A low-temperature phase oxide single crystal having a nominal composition of Ba(B.sub.1-x M.sub.x).sub.2 O.sub.4 is synthesized by partially substituting B of BaB.sub.2 O.sub.4 with one or more additive elements M and by growing the single crystal in a Ba(B.sub.1-x M.sub.x).sub.2 O.sub.4 composition compound (where M is one or more additive elements selected from the group consisting of Al, Ga and In, and 0.001
摘要:
It is an object of the present invention to enable quick, easy, and inexpensive connections even in a narrow area using an inexpensive device and an inexpensive optical fiber connecting element, thereby achieving high operability and high durability reliability. An optical fiber connecting element includes an optical alignment sleeve having tapered insertion ports formed at opposite ends thereof and having an ejection port opened in an area in which the two optical fibers inserted through the insertion ports are butted against each other, a cyanoacrylate-type glue injected into the insertion ports and the injection port to fix the two optical fibers, and a heat-shrinkable tube wrapped around the optical alignment sleeve and two optical fiber coatings and having a hot-melt adhesive provided therein.
摘要:
The present invention relates to a process for producing high shrinking acrylic fibers which have excellent antipilling properties and dyeing characteristics. This process involves dissolving an acrylonitrile polymer in an inorganic solvent to prepare a spinning solution containing the inorganic solvent in a concentration of 40-70%, subjecting the spinning solution to a wet-spinning by extruding through spinnerette orifices into two coagulating baths, while maintaining the linear velocity ratio of free extrusion at 1 or higher and maintaining a jet stretch ratio of 1.5 or higher, stretching the formed swollen gel fibers to 3-7 times the length in hot water or in a heated steam medium at 80.degree.-120.degree.C, drying the stretched fibers, then subjecting the fibers to a secondary stretch of 1.05 to 1.60 times the length, wherein the first coagulating bath has an inorganic solvent concentration of 50-70% of that in the spinning solution. The jet stretch ratio is defined as being the quotient obtained by dividing the take-up speed of the coagulated filaments from the coagulating baths by the extrusion linear velocity of the fiber-forming polymer through the spinnerette orifices.
摘要:
The present invention relates to a process for producing an anti-pilling acrylic fiber which has excellent level dyeing properties. This process involves dissolving an acrylonitrile in an inorganic solvent to prepare a spinning solution, wherein the inorganic solvent in the spinning solution is 40-70%, subjecting the spinning solution to wet-spinning by extrusion through spinneret orifices into a coagulation bath containing an inorganic solvent in an amount of 50-70% of that in the spinning solution, while maintaining the linear velocity ratio of free extrusion at 1 or higher and the jet stretch ratio 1.5 or higher, stretching the formed gel fibers 3-7 times the length in hot water or in a heated steam medium at 80.degree.-120.degree.C, drying the stretched fibers and then subjecting the fibers to a relaxation treatment in a hot air current at a temperature of 150.degree.C or lower or in a wet heat atmosphere at a temperature of 120.degree.C or lower. The jet stretch ratio is defined as being the quotient obtained by dividing the takeup speed of the coagulated filaments from the coagulation step by the linear velocity of extrusion of the spinning solution through the spinneret orifices.
摘要:
Outer ends of link members supported to a case and having their inner ends coupled to each other are coupled to a slider. A membrane sheet and a pusher are disposed one after the other on the slider, and a knob having molded therewith a surface sheet is fixed to the slider. On a bottom plate are mounted a tactile push-button switch and a light source. No matter which press area is depressed, the slider is uniformly translated by the link mechanism to actuate the push-button switch. The link mechanism, the slider, the membrane sheet except conductor portions, and the pusher are formed of a light transmitting material.
摘要:
An oxide single crystal having a nominal composition expressed BaM.sub.2 O.sub.4 (M is at least an element selected from the group consisting of Al and Ga), M of which is partially substituted with B, is provided. The BaM.sub.2 O.sub.4 oxide single crystal has an asymmetric central portion formed around B and thereby exhibits a non-linear optical property.
摘要翻译:提供具有标称组成表示为BaM 2 O 4的氧化物单晶(M为至少一种选自Al和Ga的元素),其中M部分被B取代。 BaM2O4氧化物单晶具有形成于B周围的非对称中心部分,从而呈现非线性的光学性质。