Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.

Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.

Abstract: A redox flow battery transport structure includes a cell stack that includes a plurality of stacked layers of battery cells of a redox flow battery; a container in which the cell stack is housed; and a vibration absorbing member that vertically supports the cell stack from below in the container.

Abstract: The invention offers an air spring for obtaining a vehicle that renders good comfortableness even at the time of the curved-track running. The air spring for a vehicle has an upper board, a lower board, a diaphragm, and a stopper rubber placed between the lower board and a lower plate. The air spring is provided with a mechanism for restraining the displacement of the stopper rubber, the mechanism having a first restraining member placed on either one of the lower plate and the lower board and a second restraining member placed on the other.

Abstract: The invention offers an air spring for obtaining a vehicle that renders good comfortableness even at the time of the curved-track running. The air spring for a vehicle has an upper board, a lower board, a diaphragm, and a stopper rubber placed between the lower board and a lower plate. The air spring is provided with a mechanism for restraining the displacement of the stopper rubber, the mechanism having a first restraining member placed on either one of the lower plate and the lower board and a second restraining member placed on the other.

Abstract: An electrolyte tank which allows effective use of existing space of various shapes is provided. An electrolyte tank is formed by laminating one or more layers of coated fabric provided by coating a woven fabric of organic fiber with rubber or plastic and processing the laminated coated fabric to a bag-shape.

Abstract: Tungsten powder which is a material of high radiation absorptivity is dispersed into unvulcanized fluoro rubber in advance so that the mixture is vulcanized and molded. As the powder of material of high radiation absorptivity, powder having an F.s.s.s. particle size not larger than 50 .mu.m is used. Further, in the case where a mixture of powder having an F.s.s.s. particle size in a range of from 5 .mu.m to 50 .mu.m, and powder having an F.s.s.s. particle size in a range of from 0.5 .mu.m, to 5 .mu.m, is used as the powder of material of high radiation absorptivity, the powder of material of high radiation absorptivity has good tensile strength, good extensibility and more excellent radiation shielding ability, when the weight of the powder having a particle size in a range of from 4 .mu.m to 100 .mu.m is in a range of from 60% by weight to 95% by weight, and the weight of the powder having a particle size smaller than 4 .mu.m is in a range of from 5% by weight to 40% by weight.