Abstract: A disconnect device includes: a conductor connectable to an external conductive path; a housing that has an internal space and accommodates at least a part of the conductor; and a cooling body that is disposed in the internal space and cools an arc generated in the internal space. The cooling body includes a porous body configured with at least one of a metal oxide and an inorganic oxide.

Abstract: An interrupter includes a gas producer, an actuator pin, and an electrical conductor. The electrical conductor includes a first terminal portion, a first separable portion, a second terminal portion, and a second separable portion. The second separable portion is electrically connected to the first separable portion in parallel. A first timing when the first separable portion starts to be cut off from the first terminal portion is earlier than a second timing when the second separable portion starts to be cut off from the second terminal portion.

Abstract: According to one embodiment, a data input unit inputs data affecting progress of production, a development risk calculation unit calculates development risks related to development time of the production based on results of classification of the data, a production capability calculation unit calculates production capabilities by process based on results of analysis of the data, and an expected value calculation unit calculates expected values of production volume by process based on the development risks and the production capabilities.

Abstract: A male-mounted tape is composed of a plurality of synthetic resin male snaps moulded and fastened onto a cloth tape at certain intervals in such a way that their engagement sides and non-engagement sides, which are asymmetric to each other, are on the front side and the back side of the cloth tape respectively. A female tape is composed of a plurality of synthetic resin female snaps moulded and fastened onto a cloth tape at the same intervals as the male snaps in such a way that their engagement sides and non-engagement sides, which are asymmetric to each other, are on the front side and the back side of the cloth tape respectively. The cloth tapes, on which the female and male snaps are formed and fastened, are not provided with holes for mounting the snaps.

Abstract: A male-mounted tape is composed of a plurality of synthetic resin male snaps moulded and fastened onto a cloth tape at certain intervals in such a way that their engagement sides and non-engagement sides, which are asymmetric to each other, are on the front side and the back side of the cloth tape respectively. A female tape is composed of a plurality of synthetic resin female snaps moulded and fastened onto a cloth tape at the same intervals as the male snaps in such a way that their engagement sides and non-engagement sides, which are asymmetric to each other, are on the front side and the back side of the cloth tape respectively. The cloth tapes, on which the female and male snaps are formed and fastened, are not provided with holes for mounting the snaps.