摘要:
In an ultra-low temperature freezer (R) using refrigerant mixture in which plural kinds of refrigerants having different boiling points are mixed, in order to ensure the flow rate of liquid refrigerant into a supercooler (31) and enhance the cooling efficiency of a cryocoil (32), the ultra-low temperature freezer (R) comprises: a main refrigerant circuit (38) provided with the cryocoil (32) and a capillary tube (29); and a sub refrigerant circuit (39) that is connected at the upstream end to the upstream end of the main refrigerant circuit (38) to branch off therefrom and provided with a capillary tube (28), and the ultra-low temperature freezer (R) is configured so that the sub refrigerant circuit (39) is lower in height than the main refrigerant circuit (38). Thus, gas-liquid mixture refrigerant discharged from the primary side (31a) of the supercooler (31) flows into the sub refrigerant circuit (39) at a higher rate than into the main refrigerant circuit (38) and, in turn, liquid refrigerant flows more into the sub refrigerant circuit (39) than into the main refrigerant circuit (38).
摘要:
A diagnosis device for diagnosing loosening of a stator core of a rotary electrical machine. The diagnosis device has: excitation means for vibrating the stator core in the radial direction; vibration detection means for detecting the vibration of the stator core in the radial direction; means for frequency-analyzing an output signal of the vibration detection means that detects vibration generated in the stator core when the stator core is vibrated by the excitation means so as to extract a measurement natural vibration mode of the stator core in a circular ring natural vibration mode; means for estimating a circular ring natural vibration mode of the stator core from shape data of the stator core; and means for determining a clamping state of the stator core by comparing the measurement natural vibration mode and a determination criterion obtained based on the estimated natural vibration mode.
摘要:
To minimize an amount of unmixed fluids remaining inside, the mixing element includes right-handed and left-handed spiral blades (1) having a shape twisted 180 degrees and being alternately and continuously provided in the axial direction to make end parts (1a) of the adjacent spiral blades to orthogonally cross, turbulence generating parts (1c) divided by an extension face (1ca) ad a rising face (1cb) are formed at four portions, which continue toward a front-side side edge (1aL1) and an outer periphery at a part spirally continuing to the back side from the front-side side edge (1aL1) and are surrounded by a front-side end edge (1cL1), an axial-side edge (1cL2) and a front-side edge (1cR1), and an inflow part (1d) formed by notching a portion from an end-part starting edge to a back-side end edge is formed at a back-side side edge opposed to positions of the turbulence generating part (1c).
摘要翻译:为了最小化残留在内部的未混合流体的量,混合元件包括具有扭转180度的形状的右旋和左旋螺旋叶片(1),并且在轴向方向上交替地连续地设置,以使端部(1a) 的相邻螺旋叶片正交交叉的湍流产生部分(1c)分成四个部分,所述湍流产生部分(1c)被延伸面(1c)和正面(1c)分开,所述四个部分朝向前侧侧缘 aL 1)和从前侧侧边缘(11a)向螺旋状地延伸到后侧的部分的外周,并且被前侧端缘(1cL1),轴向侧边缘 1cL 2)和前侧边缘(1cR1)以及从端部起始边缘到后侧端部边缘的一部分形成的流入部分(1d)形成在后侧 与湍流产生部分(1c)的位置相对的侧边缘。
摘要:
The present invention provides a zoom lens that suppresses the generation of unnecessary light and is suitable for a projection lens. The zoom lens is used as a projection lens of a projector in which a prism is located between the projection lens and a spatial optical modulating element B. A lens closest to the spatial optical modulating element B is a meniscus positive lens whose convex surface faces a screen. A refractive index of the meniscus positive lens is 1.75 or more.
摘要:
The organic NTC composition according to the present invention is a mixture of a conjugated organic semiconductor polymer and a thermoplastic resin or thermosetting resin. For example, the mixed amount of the thermoplastic resin or thermosetting resin is preferably equal to or lower than two times the amount of the conjugated organic semiconductor polymer, and a conjugated organic semiconductor polymer selected from solvent-soluble polyaniline, polythiophene, polypyrrole and their derivatives is preferably used.This organic NTC composition makes it possible to provide an organic NTC device without using any expensive material and facilitates easy production at low temperatures.
摘要:
A method of producing a dielectric-film-forming composition including: (a) dissolving a metal hydroxide including a metal A which is at least one metal selected from Li, Na, Ca, Sr, and Ba and at least one of a metal alkoxide and a metal complex including a metal B which is at least one metal selected from Ti, Zr, Hf, Ta, and Nb in an organic solvent to prepare a solution; and (b) allowing a precursor in the solution prepared in the step (a) to react.
摘要:
To prevent accidental discharge from a cartridge, a dispenser for the dental viscous material comprises a guide shaft 1 having a cylindrical part 1ba at a front end thereof, a guide member 1b having a large diameter part 1bba and a small diameter part 1bbb on the rear side of the cylindrical part 1ba, and a knob for rotating the guide shaft 1h at a rear end, a slide block 2 having a release plate 2c, and piston shafts 2b, a housing 3 having pressing springs 3ea, which press piston shafts 2b, and a lever main body 4 having a lever part 4a rotatable by a predetermined angle from a position in parallel to the housing 3 and a pressing piece 4b projected under the front side of the lever part 4a, to constitute a mechanism of switching of discharge state and discharge release state.
摘要:
The organic NTC composition according to the present invention is a mixture of a conjugated organic semiconductor polymer and a thermoplastic resin or thermosetting resin. For example, the mixed amount of the thermoplastic resin or thermosetting resin is preferably equal to or lower than two times the amount of the conjugated organic semiconductor polymer, and a conjugated organic semiconductor polymer selected from solvent-soluble polyaniline, polythiophene, polypyrrole and their derivatives is preferably used. This organic NTC composition makes it possible to provide an organic NTC device without using any expensive material and facilitates easy production at low temperatures.
摘要:
In a multi cylinder internal combustion engine comprising a cylinder head internally defining exhaust passages and a converging area into which the exhaust passages converge, an upper water jacket and a lower water jacket are formed above and below the exhaust passages, and the lower water jacket has a greater volume than the upper water jacket. Thus, the cooling efficiency for the converging area can be improved by increasing the volume of the part of the water jacket adjacent to the converging area. Also, because the upper water jacket has a relatively small volume, the load on the core parts supporting the core part for defining the upper water jacket can be reduced, and the overall mechanical strength of the core can be improved. By extending the water jackets to the converging area, the cooling efficiency can be improved even further.
摘要:
A monomer containing an electron-withdrawing group and an electron-donative group which can be easily controlled in the upper limit of the amount of a sulfonic acid, which impairs the mechanical properties of a copolymer, and can provide a sulfonated polymer that forms a proton-conductive membrane having a high proton conductivity over a wide temperature range, an excellent mechanical strength and an excellent proton conductivity and showing inhibited swelling in hot water and an aqueous solution of methanol, and a copolymer obtained from the monomer. A monomer containing an electron-withdrawing group and an electron-donative group represented by the following general formula (1): wherein Y represents a iodine atom, chlorine atom or bromine atom; X represents an electron-withdrawing group; B represents an electron-donative group; and Z represents an aryl group having a specific structure or a monovalent condensed ring hydrocarbon group such as naphthyl group.