Abstract: The present invention provides a control device for detecting an abnormal operation state of a compressor in a parallel refrigerator. The control device is a control device for a refrigerator that includes a plurality of compressors connected in parallel, and detects occurrence of surging and occurrence of droplet suction on the basis of a deviation between values of currents flowing through electric motors that is configured to drive each of the plurality of compressors, and an operation point indicated by the air volume and the compression ratio of the plurality of compressors.

Abstract: A solar cell according to the present disclosure includes a first electrode, a second electrode, a photoelectric conversion layer disposed between the first electrode and the second electrode, and an electron transport layer disposed between the first electrode and the photoelectric conversion layer. At least one electrode selected from the group consisting of the first electrode and the second electrode has a light-transmitting property. The photoelectric conversion layer contains a perovskite compound composed of a monovalent cation, a divalent cation, and a halogen anion. The electron transport layer contains a metal oxynitride having electron conductivity. The metal oxynitride has an electrical conductivity of greater than or equal to 1×10?7 S/cm.

Abstract: A powered tool includes a housing, a drive source, a drive body, a sealing part, and a holding part. The drive source is rotatable in the housing. The drive body is supported in the housing and reciprocatable by a driving force of the drive source. The sealing part is in contact with an outer peripheral surface of the drive body. The holding part is positioned around the drive body. The holding part surrounds the sealing part and supports the sealing part to be in contact with the outer peripheral surface of the drive body. The holding part includes a lubrication oil accommodating part retaining a lubricant supplied to the outer peripheral surface of the drive body.

Abstract: If a wire is broken at a connecting portion 5a, the connection with a positive electrode wiring 4a is broken and a second discharge circuit 11 is lost. However, a first discharge resistor 6 is connected to a positive electrode wiring 4a, and a first discharge circuit 9 is maintained. If a wire is broken at a connecting portion 5b, the connection with a negative electrode wiring 4b is broken and the second discharge circuit 11 is lost. However, the switching element 7 is connected to the negative electrode wiring 4b via a board wiring 3 and a relay wiring 21, and the first discharge circuit 9 is maintained. If a wire is broken at a connecting portion 5c, the connection with the first discharge resistor 6 is broken and the first discharge circuit 9 is lost, but the second discharge circuit 11 is maintained.

Abstract: If a wire is broken at a connecting portion 5a, the connection with a positive electrode wiring 4a is broken and a second discharge circuit 11 is lost. However, a first discharge resistor 6 is connected to a positive electrode wiring 4a, and a first discharge circuit 9 is maintained. If a wire is broken at a connecting portion 5b, the connection with a negative electrode wiring 4b is broken and the second discharge circuit 11 is lost. However, the switching element 7 is connected to the negative electrode wiring 4b via a board wiring 3 and a relay wiring 21, and the first discharge circuit 9 is maintained. If a wire is broken at a connecting portion 5c, the connection with the first discharge resistor 6 is broken and the first discharge circuit 9 is lost, but the second discharge circuit 11 is maintained.

Abstract: To achieve a balance between easiness and security such that a user can perform manipulation in easy environments when a debug mode, e.g., parameter correction, is activated and used. A electric power conversion device according to the present invention includes a control portion that controls an inverter circuit portion and that is linked with an information control communication line, and a wire that links a resolver, which detects rotation of a rotor of a motor, with the control portion, wherein the control portion activates a debug mode that changes a program of the control portion on the basis of a debug start signal acquired via the information control communication line and the wire.

Abstract: This invention provides highly reliable ignition device with superior ease of mass production, and a method for the manufacture thereof. An ignition device is constructed by taking a heating element 40 comprising a bridge element 25 composed of a heating bridge wire 25c which is heated by the passage of an electric current and heating electrodes 25a and 25b located at both ends thereof, and a flexible insulating sheet 26 which carries this bridge element; then welding this heating element to stem electrodes, formed in the stem, via connection guides which are openings provided in the insulating sheet at the location of the heating electrodes.

Abstract: Disclosed are a powder kneading method and apparatus, in which a vermicelli-forming powder for the production of vermicelli or buckwheat vermicelli, a bread-forming powder or a soil powder for a soil paste for the production of a ceramic ware or the like is uniformly mixed with fine particulate ice, the ice in the powder/ice mixture is melted in an atmosphere maintained at a temperature higher than 0.degree. C. and a pressure is applied to the mixture to remove air contained in the interior of the mixture during or after the melting. Only by such simple operations, the powder can be uniformly kneaded with water, and a vermicelli or buckwheat vermicelli dough or a soil paste for a ceramic ware or a tile can be easily prepared in a very short time.