摘要:
In a multistage centrifugal compressor, a plurality of impellers is attached to the same rotary shaft. Vaned Diffusers and vaneless diffusers are used, as diffusers, for respective compressor stages configuring the compressor. The vaned diffusers are continuously used from the first compressor stage to the middle compressor stage, and the vaneless diffusers are used for the last compressor stage and the previous stage. While high efficiency is maintained at the compressor stages having the vaned diffusers, an operating flow range is secured at the compressor stages having the vaneless diffusers.
摘要:
An analysis device comprises a separation chamber for separating a sample solution into a solution component and a solid component, a holding channel for holding a predetermined amount of the separated solid component, a mixing chamber connected to the holding channel, an overflow channel connected between the holding channel and the separation chamber, a sample overflow chamber into which the sample solution remaining in the separation chamber is discharged, and a joint channel connecting the separation chamber and the sample overflow chamber. After the separated solution component fills the overflow channel with priority by a capillary force, the separated solid component is transferred to the holding channel via the overflow channel, and a predetermined amount of the solid component is measured. The solid component in the holding channel is transferred to the mixing chamber by a centrifugal force, and simultaneously, the sample solution remaining in the separation chamber is discharged to the sample overflow chamber by the siphon effect of the joint channel.
摘要:
A sample solution including blood components is processed with a denaturalization reagent comprising a nonionic surface-activating agent and an oxidizing agent to denaturalize a hemoglobin derivative in the sample solution, and thereafter, an immunoassay is performing utilizing an antibody that is specific to a denaturalized site of the hemoglobin derivative to measure the amount of the hemoglobin derivative in the sample. Therefore, when performing assay of hemoglobin derivative, denaturalization of hemoglobin can be performed speedily and reliably while minimizing adverse effects of the denaturalization reagent on immune reaction.
摘要:
The present invention provides the amorphous silica particles having a double structure of a core of the dense amorphous silica and a shell of the bulky amorphous silica, having a volume-based median diameter of from 1 to 5 .mu.m and containing not more than 10% by volume of fine particles having a particle diameter of not larger than 0.5 .mu.m. The amorphous silica particles of the double structure have constant particle diameters not only in the powdery state but also in a state where they are blended in a coating material or in a resin, without developing fine particles, exhibit excellent delustering action and antiblocking action, exhibit decreased abrading property, and exhibit excellent resistance against scars or abrasion.
摘要:
An electric shaver having a shaver head that can be changed in its orientation so as to conform to the facial configuration. The shaver including a blade holding plate fastened to one end of the shaver housing, and a shaver head supporting member which protrudes outward is installed on the center of this blade holding plate. The apex of the shaver head supporting member contacts a projecting element projecting from the inside of the shaver head, so that the shaver head can pivot in any direction or swivel.
摘要:
A reel brake device for a tape reel of a magnetic tape cassette has a pair of braking strips for a supply reel and a take-up reel. The braking strips are formed with at least one hinged section to allow resilient deformation in order to absorb kinematic energy exerted on the braking strips from the tape reel as the reel is subjected to rotational torque or lateral force. By providing the capability of resilient deformation for the braking strips, braking engagement can be maintained even when vibration exerting rotational force is applied to the tape reels.
摘要:
A plurality of plate members are provided to be aligned with each other in order to define a plurality of coin paths in units of denominations which are aligned with each other and capable of communicating with a common path along which all inserted coins pass. Selectors are provided at a position immediately upstream from two successive aligned coin paths. Each selector is driven by a solenoid operative in accordance with a detection result from a coil for detecting denominations of coins. An inserted coin is directed to a corresponding coin path by the selector.
摘要:
A screw rotor assembly having nonsymmetrical tooth profiles and used in a screw-type rotary compressor or expander. The tooth profile of the female rotor is formed such that a line (H.sub.2 -A.sub.2) is formed by a generated curve of a point A.sub.1 of the male rotor; a line (A.sub.2 -B.sub.2) is formed by a circular arc having a point O.sub.7 as the center of the arc and a radius R.sub.7 ; a curve (B.sub.2 -C'.sub.2) is formed by an envelope developed by a circular arc (B.sub.1 -C.sub.1) of the male rotor; a portion between points D'.sub.2 and E.sub.2 is formed by a circular arc having a point O.sub.1 as the center of the arc and a radius R.sub.1 ; a line (C'-D') is formed by a line smoothly connecting the curves (B.sub.2 -C'.sub.2) and (D'.sub.2 -E.sub.2); a curve (E.sub.2 -F.sub.2) is formed by a circular arc having a point O.sub.2 as the center of the arc and a radius R.sub.2 ; and a curve (F.sub.2 -G.sub.2) is formed by a circular arc having a point O.sub.8 as the center of the arc and a radius R.sub.8. The tooth profile of the male rotor is formed such that a curve (H.sub.1 -A.sub.1) is formed by a generated curve of a point H.sub.2 of the female rotor; a curve (A.sub.1 -B.sub.1) is formed by an envelope developed by the arc (A.sub.2 -B.sub.2) of the female rotor; a curve (B.sub.1 -C.sub.1) is formed by a circular arc having a point O.sub.4 as the center of the arc and a radius R.sub.4 ; a curve (C.sub.1 -D.sub.1) is formed by a circular arc having the rotating center of the male rotor as the center of the arc and a radius R.sub.5 ; and curves (D.sub.1 -E.sub.1), (E.sub.1 -F.sub.1) and (F.sub.1 -G.sub.1) are generated by arcs (D.sub.2 -E.sub.2), (E.sub.2 -F.sub.2) and (F.sub.2 -G.sub.2) of the female rotor tooth profile, respectively. The screw rotor assembly prevents abnormal noise and vibration of the compressor or expander and can be easily manufactured.
摘要:
A coin discrimination member and a coin selection member are mounted on one of two plates defining a coin path. Counterfeit coins are removed from the coin path between the two plates at an upstream portion thereof in response to a discrimination signal from an electronic discrimination unit. Thereafter, the authentic coins are discriminated and sorted by the coin discrimination member and the coin selection member. One plate is detachably pivoted about the other plate.
摘要:
A coin dispensing apparatus capable of selectively dispensing a coin of a predetermined denomination from among coins of various denominations stored in a coin tube assembly. The coin tube assembly is detachably mounted in a housing. At portion to the bottom of the tube assembly are provided both pay-out slide and coin base, whereby coins in the tube assembly are prevented from dropping out when the tube assembly is detached. Locking parts which are provided at the tube assembly and the housing are engaged with each other, in position. A coin level detector is disposed in the housing so that the detector can be set in position when the tube assembly is attached to the housing. The detector detects when the number of coins is reduced to a predetermined value.