Abstract: To improve repulsion performance when a ball is hit by a racket. Grommets each include a strip-shaped portion and a cylinder portion protruding from one surface of the strip-shaped portion. The cylinder portion includes a plurality of ribs extending along an extending direction of a central axis of a cylinder main body. The plurality of ribs is constituted of first ribs protruding from an outer peripheral surface of the cylinder main body toward both sides in the extending direction of the strip-shaped portion, and second ribs protruding from the outer peripheral surface of the cylinder main body toward both sides in a direction orthogonal to the extending direction of the strip-shaped portion. Two or more of the first ribs are formed on each of the both sides in the extending direction of the strip-shaped portion, and one or more of the second ribs are formed on each of the both sides in the direction orthogonal to the extending direction of the strip-shaped portion.

Abstract: A determination system determines an appropriate air conditioning system. The determination system includes a control unit, storage unit, and input unit. The control unit generates a first system candidate for an air conditioning system to be determined. The control unit acquires first information relating to weighting of initial and running costs of the first system. The control unit acquires, based on the first information, a degree of how the total cost is affected by the initial and running costs. The control unit calculates total cost by adding the initial and running costs based on the degree. The storage unit stores the first system and the total cost calculated in association with each other. The first information is input into the input unit. The control unit determines, from the first system, the first system the total cost of which satisfies a first criterion as the appropriate air conditioning system.

Abstract: An air conditioning capacity presenting system presents a capacity of an air conditioning apparatus including at least one outdoor unit, at least one indoor unit, and a connection pipe that connects the outdoor unit and the indoor unit. The air conditioning capacity presenting system includes first acquisition unit, a measurement unit, a second acquisition unit, and a capacity calculating unit. The first acquisition unit acquires outdoor unit capacity information, which is a rated capacity of the outdoor unit or information related to the rated capacity. The measurement unit measures power consumption of the outdoor unit. The second acquisition unit acquires an outside air temperature, which is a temperature of air around the outdoor unit. The capacity calculating unit obtains a calculation value of the capacity of the air conditioning apparatus based on the outdoor unit capacity information, the power consumption, and the outside air temperature.

Abstract: Structures with racket performance varied according to the configurations of cylindrical parts can be easily used. A grommet (25-28) includes a cylindrical part (32) which is mounted pierced through a through hole (23) formed in a frame (20) of a racket (10) and through which a string (21) passes. The string is extended in a tensioned state on the frame so as to form front and back faces as hitting faces (22). The cylindrical part includes a first formation section (35) forming both sides of a central axis position (C) of the cylindrical part and a second formation section (36) rotationally shifted with reference to the central axis position by 90 degrees relative to the first formation section and forming both sides of the central axis position. One of the first and second formation sections is disposed on both sides in a front/back direction. The first and second formation sections each have a different rigidity.

Abstract: Provided are a rheology modifier and a method for modifying water rheology for imparting thixotropy and viscosity to water, and a slurry composition having high viscosity and excellent resistance to separation in water and a method for producing such a slurry composition. A rheology modifier containing: (A) a sulfate or a salt thereof having a hydrocarbon group with 12 or more and 22 or less carbon atoms and an average number of moles of added alkylene oxide of 0 or more and 25 or less; and (B) a fatty acid alkanolamide having a fatty acid moiety with 10 or more and 22 or less carbon atoms.

Abstract: The invention has an object of providing a printing device and a method of controlling the printing device each capable of reducing the number of signal lines necessary for the connection to the circuit board for controlling the head drive circuit.

Abstract: The present invention is a hydraulic composition, which includes an ?-hydroxy sulfonic acid or a salt thereof, a hydraulic powder and water, wherein the ratio of slag in the hydraulic powder is 60% by mass or more.

Abstract: The present invention is a hydraulic composition, which includes an ?-hydroxy sulfonic acid or a salt thereof, a hydraulic powder and water, wherein the ratio of slag in the hydraulic powder is 60% by mass or more.

Abstract: The present invention provides a dispersant for a hydraulic composition containing N-methyldiethanolamine and a specific (meth)acrylic acid copolymer as a polycarboxylic acid copolymer dispersing agent to increase the fluidity of a hydraulic composition.

Abstract: The present invention provides a dispersant for a hydraulic composition containing N-methyldiethanolamine and a specific (meth)acrylic acid copolymer as a polycarboxylic acid copolymer dispersing agent to increase the fluidity of a hydraulic composition.

Abstract: The present invention provides the production of the hydraulic powder containing C3A in an amount of 0.5 to 9.5% by weight through a step of grinding a hydraulic compound in the presence of the alkanolamine having a freezing point of not higher than 0° C.

Abstract: The present invention provides the production of the hydraulic powder containing C3A in an amount of 0.5 to 9.5% by weight through a step of grinding a hydraulic compound in the presence of the alkanolamine having a freezing point of not higher than 0° C.