Abstract: The present invention relates to a fluid mixer having a fluid inlet (5), a first passage (1) which connects to the fluid inlet, a helical flow passage (2) which connects to the first flow passage, branched flow passages (4) which are branched from the helical flow passage, a second flow passage (3) to which the branched flow passages individually connect, a connection flow passage (7) which connects the first flow passage and the second flow passage, and a fluid outlet (6) which connects to the second flow passage. The branched flow passages are individually branched from different positions in the direction of flow through the helical flow passages. The branched flow passages which are branched from the helical flow passage individually connect to the second flow passage at different positions in the direction of flow through the second flow passage.

Abstract: An ultrasonic flowmeter includes a measurement pipe through which a fluid flows, and two ultrasonic transceivers provided on outer side portions of the measurement pipe so as to be spaced apart from each other in an axis direction. In the method of producing the ultrasonic flowmeter, fabricating the measurement pipe in advance is fabricated, and then is set in a mold as an insert. Two transmitting bodies are formed by insert molding on the outer side portions of the measurement pipe so as to be spaced apart from each other in the axis direction, so that the two transmitting bodies are integral with the measurement pipe. The two ultrasonic transceivers are mounted on the two transmitting bodies, respectively.

Abstract: A molding material for a sliding member, the molding material being superior in processability and sliding properties, and a sliding member formed from the molding material for a sliding member are provided. The molding material for a sliding member contains a phenol resin, a boron compound, an elastomer and a filler. The elastomer preferably contains at least one selected from the group consisting of are acrylonitrile butadiene rubber, a urethane rubber and a silicone rubber, and more preferably an acrylonitrile butadiene rubber among them. The boron compound preferably contains at least one selected from the group consisting of boric acid, zinc borate and boron oxide, and the filler preferably contains a carbon fiber. Furthermore, the content of the elastomer with respect to 100 parts by mass of the carbon fiber is preferably no less than 5 parts by mass and no greater than 50 parts by mass.

Abstract: A fluid mixer which can mix fluid while making the distribution of concentration or distribution of temperature of the fluid in the direction of flow uniform without any unevenness and which is both compact and easy to install piping for is provided. This fluid mixer has a fluid inlet, a first flow path connected to the fluid inlet, a spiral flow path connected to the first flow path, a plurality of branch flow paths branched from the spiral flow path, a second flow path to which the plurality of branch flow paths are connected, and a fluid outlet connected to the second flow path, the plurality of branch flow paths branching from different positions of the spiral flow path and being connected with the second flow path at different positions of the second flow path.

Abstract: The present invention relates to a fluid mixer having a fluid inlet (5), a first passage (1) which connects to the fluid inlet, a helical flow passage (2) which connects to the first flow passage, branched flow passages (4) which are branched from the helical flow passage, a second flow passage (3) to which the branched flow passages individually connect, a connection flow passage (7) which connects the first flow passage and the second flow passage, and a fluid outlet (6) which connects to the second flow passage. The branched flow passages are individually branched from different positions in the direction of flow through the helical flow passages. The branched flow passages which are branched from the helical flow passage individually connect to the second flow passage at different positions in the direction of flow through the second flow passage.

Abstract: A spiral type fluid mixer which enables mixing by a distribution of concentration or distribution of temperature in a flow direction of the fluid made uniform without unevenness and which is compact and enables easy piping work is provided. This spiral type fluid mixer is provided with a fluid inlet, a first flow path which is connected to the fluid inlet, a first spiral flow path which is connected to the first flow path, a plurality of branch flow paths which are branched from the first spiral flow path, a second spiral flow path to which the plurality of branch flow paths are connected, a second flow path which is connected to the second spiral flow path, and a fluid outlet which is connected to the second flow path, the plurality of branch flow path being branched from different positions of the first spiral flow path and being connected with the second spiral flow path at different positions of the second spiral flow path.

Abstract: Providing a process for advantageously producing spherical particles of furfuryl alcohol resin using only furfuryl alcohol without using a harmful aldehyde as a starting material. In the process, furfuryl alcohol is subjected to a self-condensation reaction in the presence of an acid catalyst, whereby a fluidic condensation resin of furfuryl alcohol is obtained. The condensation resin of furfuryl alcohol is granulated and cured using water as a reaction medium in the presence of a dispersion stabilizer and an acid catalyst having a pKa of not more than 1.5, whereby spherical cured resin particles are formed.

Abstract: [Problem] To provide a piston-format working-fluid-pressure actuator capable of commonly using components when the piston-format working-fluid-pressure actuator is used for a reverse action or a normal action and decreasing a length dimension, in the forward/backward movement direction of the output shaft and to provide a control valve using the piston-format working-fluid-pressure actuator and a valve member. [Solution] A piston-format working-fluid-pressure actuator (10) includes a casing (30) provided with a cylinder chamber (33) by including a cover portion (31) and a body portion (32), an output shaft (40) supported by the casing so as to be movable forward or backward, a piston (50) attached to the output shaft and defining the cylinder chamber, a spring member (60) applying an elastic force of moving the output shaft to the piston, and a working-fluid supply opening (70) supplying a working fluid.

Abstract: An object of the invention is to provide an anthracene derivative having characteristics peculiar to anthracene such as e.g., high carbon density, high melting point, high refractive index and fluorescent properties for ultraviolet rays, etc., and reaction diversity that results from the bisphenol structure, and a process for producing the same. Disclosed is an anthracene derivative represented by the following general formula (1): in the formula (1), X and Y each independently represent a hydroxyaryl group. The aforementioned X and Y are preferably a hydroxyphenyl group. In addition, the anthracene derivative can be produced by a process including allowing at least one compound selected from phenols and anthracene-9-carboaldehyde to react in the presence of an oxygen-containing inert organic solvent and an acid catalyst.

Abstract: A fluid mixer includes a main flow path comprised of a first flow path and a second flow path, spiral flow paths formed around the second flow path in shapes substantially concentric with the second flow path and offset in position from each other in a circumferential direction, the spiral flow paths having first ends communicated with the first flow path, branch flow paths branched from a plurality of locations of the second flow path in a flow direction, the branch flow paths being communicated with the spiral flow paths at a plurality of locations of the spiral flow paths in the flow direction, a fluid inlet at an open end of either of the first flow path and the second flow path, and a fluid outlet at an open end of the other of the first flow path and the second flow path.

Abstract: An orally administered adsorbent which has a high ability of adsorbing indoxylsulfuric acid, indoleacetic acid, and indole, a method permitting easy and advantageous production of the same, and a drug using the same. The orally administered adsorbent is obtained from spherical particles of activated carbon by carbonizing and activating spherical particles of a furfuryl alcohol resin obtained by resinifying furfuryl alcohol through a self-condensation reaction and curing the resinified furfuryl alcohol.

Abstract: An in-line-type fluid mixer is provided, which includes a first channel-forming part defining a first inlet channel from a first inlet portion to a first passage portion; a second channel-forming part defining a second inlet channel from a second inlet portion to a second passage portion; a third channel-forming part defining an outlet channel having a sectional area that increases from a narrower portion through a flaring portion to an outlet portion, and being communicated with the first inlet channel and the second inlet channel, respectively, at an end of the narrow portion; and a whirling stream-generating part for generating a whirling stream in at least one of the first inlet channel and the second inlet channel.

Abstract: A propylene resin composition which contains as essential components thereof (A) an ethylene-propylene random copolymer having an ethylene content of 0.5 to 3.0 parts by mass; (B) an elastomer having an average particle diameter of 10 to 800 nm in an amount of 1 to 10 parts by mass based on 100 parts by mass of the ethylene-propylene random copolymer; and (C) a crystalline nucleating agent, and in which after kneading thereof, the kneaded propylene resin composition exhibit a melt flow rate (MFR) of 0.01 to 1.00 g/10 min. The propylene resin composition is suitable for the production of a wide variety of molded articles.

Abstract: Provided are a phenolic resin composition for shell molding that has low thermal expansion properties and high flexibility, a resin coated sand for shell molding obtained by using the same, and a shell mold formed of the same. The phenolic resin composition for shell molding that is capable of exhibiting advantageous mold characteristic is obtained by a combination of a phenolic resin that is obtained by a reaction of a phenol, a naphthol, and an aldehyde, and a fatty acid amide.

Abstract: An ultrasonic flowmeter includes a measurement pipe through which a fluid flows, and two ultrasonic transceivers provided on outer side portions of the measurement pipe so as to be spaced apart from each other in an axis direction. In the method of producing the ultrasonic flowmeter, fabricating the measurement pipe in advance is fabricated, and then is set in a mold as an insert. Two transmitting bodies are formed by insert molding on the outer side portions of the measurement pipe so as to be spaced apart from each other in the axis direction, so that the two transmitting bodies are integral with the measurement pipe. The two ultrasonic transceivers are mounted on the two transmitting bodies, respectively.

Abstract: A base plate 1 for fixing an object 2 to an installation surface, comprising a plate-like base body 11 having a mounting portion 11a on its upper surface for mounting the object 2, and a fixing piece 12 having bolt-fastened portions 15 which are to be fastened onto the installation surface by means of fixing bolts. Portions to be fitted 13 are provided on side surfaces of the base body 11, a fitting portion 16 is provided at an end of the fixing piece 12 to detachably fit to the portion to be fitted 13, and the fixing piece 12 is detachably attached to the side surface of the base body 11. The base plate 1 has various uses, and also allows for easily fixing of the object even in a narrow and tight place.

Abstract: A conventional rotary valve in which is provided with a locking mechanism for fixing the degree of aperture so as to prevent misoperation and reduce accidents caused thereby, and even a previously installed valve can be converted to a valve having a locking mechanism, simply by replacing the handle alone. In a rotary valve wherein a valve element that is engaged with a stem is turned by turning the stem, which is connected to a handle, so as to open and close the valve, and having a top flange that is provided on a neck of a valve body that supports the stem, a notch is formed at the peripheral edge of the top flange, and a locking member, having a protrusion that can be latched in the notch in the top flange by way of a torsion spring, is pivotably supported at the center of the handle or on a grip portion thereof.