摘要:
In a regenerative braking emergency stop system, a substation includes: a rectifier transformer configured to transform AC power received from outside; a rectifier configured to convert the transformed AC power into DC power; and a switch disposed on an electrical path between the rectifier and a power-feed rail and configured to be in a closed state or an opened state; a simulated ripple transmitter configured to transmit a simulated ripple, the simulated ripple being an AC signal having a predetermined frequency; a superimposing circuit connected to the power-feed rail in parallel with the rectifier and configured to superimpose the simulated ripple transmitted from the simulated ripple transmitter on DC power outputted from the rectifier; and a relay device configured to allow the simulated ripple transmitter to transmit the simulated ripple when the rectifier is receiving power from outside and the switch is in a closed state.
摘要:
[Problem] To provide a deoxidation apparatus (4) with improved efficiency in absorbing degassing gas and dissolved oxygen in treated water.[Solution] A deoxidation apparatus (4) in which by bringing the degassing gas into contact with the treated water, causes dissolved oxygen in treated water to be absorbed by degassing gas and lowers the dissolved oxygen concentration of the treated water. The deoxidation apparatus includes the following: a gas-liquid contact tower (42) that has the shape of a lower end open container, at least the lower end of which is submerged below the surface of the treated water that is to be treated, forming an internal sealed space (421); a degassing gas supply unit (43) that supplies degassing gas to the sealed space (421), filling the sealed space (421) with degassing gas; and a treated water dispersion unit (41) that disperses the supplied treated water within the sealed space (421) in the form of a mist through a dispersion nozzle unit (412).
摘要:
A power conditioner for a feeding system which stabilizes a load of active power is provided. A power conditioner for a feeding system comprises a first AC-DC and DC-AC converter for performing conversion between AC power and DC power; and a nickel-metal hydride battery disposed between and connected to a high-voltage cable at DC side of the first AC-DC and DC-AC converter and a low-voltage cable at the DC side of the first AC-DC and DC-AC converter.
摘要:
To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substation 9 for electric railway having a transformer 3 for receiving power from an alternating-current power line 2, a rectifying device 4 connected to the transformer 3, and a feeder line 5 connected to the rectifying device 4, a nickel hydrogen battery 8 is provided as a direct-current supply facility, and the nickel hydrogen battery 8 is directly coupled to the feeder line 5.
摘要:
In a regenerative braking emergency stop system, a substation includes: a rectifier transformer configured to transform AC power received from outside; a rectifier configured to convert the transformed AC power into DC power; and a switch disposed on an electrical path between the rectifier and a power-feed rail and configured to be in a closed state or an opened state; a simulated ripple transmitter configured to transmit a simulated ripple, the simulated ripple being an AC signal having a predetermined frequency; a superimposing circuit connected to the power-feed rail in parallel with the rectifier and configured to superimpose the simulated ripple transmitted from the simulated ripple transmitter on DC power outputted from the rectifier; and a relay device configured to allow the simulated ripple transmitter to transmit the simulated ripple when the rectifier is receiving power from outside and the switch is in a closed state.
摘要:
To present an electric railway power-supply system not requiring vast area for installation, excellent in rapid charge-discharge characteristic, and low in manufacturing cost. At a substation 9 for electric railway having a transformer 3 for receiving power from an alternating-current power line 2, a rectifying device 4 connected to the transformer 3, and a feeder line 5 connected to the rectifying device 4, a nickel hydrogen battery 8 is provided as a direct-current supply facility, and the nickel hydrogen battery 8 is directly coupled to the feeder line 5.
摘要:
[Object] To provide a proton exchange membrane for a fuel cell having excellent proton conductivity, lower property of swelling with hot water, and excellent durability, as well as a block copolymer forming the proton exchange membrane, and a composition, a molded product, a fuel cell proton exchange membrane electrode assembly, and a fuel cell.[Solving Means] (1) A block copolymer having a hydrophilic segment and a hydrophobic segment and having a structure expressed by Chemical Formula 1 below (where X represents H or a univalent cation, Y represents sulfonyl group or carbonyl group, each of Z and z′ independently represents any of O and S atoms, W represents one or more group selected from the group consisting of direct bond between benzenes, sulfone group and carbonyl group, each of Ar1 and Ar2 independently represents divalent aromatic group, and each of n and m independently represents an integer from 2 to 100), and a molded product, a composition, and a proton exchange membrane, as well as a fuel cell including the proton exchange membrane.
摘要:
A protocol conversion apparatus for converting a communication system (e.g. a USB scheme and a PDC scheme) is disposed between for example, a personal computer (PC) and a portable telephone (MS). A radio protocol packet is covered with USB protocol header/footer in its entirety, or the USB protocol header/footer is removed simply to generate the radio protocol packet.
摘要:
The device and system for sight labeling according to the present invention comprises an image acquiring section for taking images, a position information acquiring section for recording a camera position while the images are being taken, a camera descriptive information acquiring section for acquiring the camera angle, focal distance and image size while the image are being taken, a map information management section for managing map information, determining a view space inside map information space based on the acquired position, camera angle, focal distance and image size, and capturing constructions present inside the view space, a label information preparation section for preparing label information including the names or descriptive information of constructions and transfer positions, a labeling information output section for overlaying the names or descriptive information from the map information at positions in the images corresponding to position information in the prepared label information, and a control section for controlling each of the sections described above.
摘要:
The invention relates to a clamping device including a pair of recessed semicylindrical resilient gripping bodies each embedded with a resilient member of harder material than the gripping bodies. The cross section of each resilient member is shaped like a semicircle having flanges at its both side edges, respectively. The diameter of the semicircle is the greatest at the midpoint of a center axis of the reinforcing member and becomes smaller toward the ends thereof. A tubular member is securely clamped inside the recesses and between these bone members by connecting means.