Abstract: Provided is a methanation catalyst processing method capable of suppressing degradation of a catalyst performance. A methanation catalyst processing method of the present disclosure includes oxidizing nickel through a heat treatment of a methanation catalyst by supplying an oxygen gas containing oxygen to a reactor, the reactor housing the methanation catalyst containing the nickel as a catalyst component. In the oxidizing, the oxygen gas is supplied to the reactor such that the oxygen is supplied to 1 g of the methanation catalyst at a supply rate in a range of from 0.0213 mmol-O2/sec·g-cat. to 0.0638 mmol-O2/sec·g-cat., and a time period of the heat treatment of the methanation catalyst by supplying the oxygen gas to the reactor is set to 30 minutes or more.

Abstract: The present disclosure provides a terminal block that can be kept compact. A terminal block has a housing made of a synthetic resin, a columnar metal connection terminal held by the housing, and a cylindrical metal joint part in which a device connection part of the connection terminal is inserted. The joint part has a cylindrical part in which the device connection part is inserted and a cylindrical part in which an end part of a device-side terminal electrically connected to the connection terminal is inserted. The connection terminal is electrically connected to the device-side terminal via the joint part.

Abstract: The present disclosure provides a terminal block that can be kept compact. A terminal block has a housing made of a synthetic resin, a columnar metal connection terminal held by the housing, and a cylindrical metal joint part in which a device connection part of the connection terminal is inserted. The joint part has a cylindrical part in which the device connection part is inserted and a cylindrical part in which an end part of a device-side terminal electrically connected to the connection terminal is inserted. The connection terminal is electrically connected to the device-side terminal via the joint part.

Abstract: A terminal-attached electric wire includes: an insulated electric wire which includes a core wire and an insulating material covering the periphery of the core wire; a terminal fitting electrically connected to the core wire at the end of the insulated electric wire; and an adhesive tube covering the end of the insulating material. The terminal-attached electric wire includes a molding portion formed to cover a region extending from a core wire-connected portion of the terminal fitting which is connected to the core wire to a middle portion in an axial direction of the adhesive tube. The outer peripheral surface of the adhesive tube is adhered to the inner peripheral surface of the molding portion. The inner peripheral surface of the adhesive tube is adhered to the outer peripheral surface of the insulating material.

Abstract: A connection terminal for connecting a first conductor and a second conductor, the connection terminal including: a connection configured to be connected to the first conductor; an arc-shaped fitting that extends from the connection, and is configured to be fitted to, while being in surface contact with, a tubular outer circumferential surface of the second conductor over a half of the circumference thereof, with application of restoring force after elastic deformation; and a pair of extensions that extend from two ends, in a circumferential direction, of the arc-shaped fitting, and are curved to a side opposite to a side to which the arc-shaped fitting is curved.

Abstract: A connection terminal for connecting a first conductor and a second conductor, the connection terminal including: a connection configured to be connected to the first conductor; an arc-shaped fitting that extends from the connection, and is configured to be fitted to, while being in surface contact with, a tubular outer circumferential surface of the second conductor over a half of the circumference thereof, with application of restoring force after elastic deformation; and a pair of extensions that extend from two ends, in a circumferential direction, of the arc-shaped fitting, and are curved to a side opposite to a side to which the arc-shaped fitting is curved.

Abstract: An electric device terminal apparatus includes: a housing having a fitting portion that can fit together with a partner member; a storage groove provided in the periphery of the fitting portion, on an end surface of the housing that faces the partner member; and a ring-shaped seal member that is provided in the storage groove and water-tightly seals a space between the end surface of the housing and the partner member. The storage groove is filled with a liquid gasket as the seal member.

Abstract: A multi-core power cable for supplying AC power to an electrical device, the multi-core power cable including a plurality of core wires that are non-insulated stranded wires or non-insulated single-core wires; an insulative Y-shaped spacer that includes a center that is a solid portion that is made of an insulative resin and that extends in a longitudinal direction, and three plate-shaped walls that are formed of an insulative resin and that extend outward in a radial direction from the center, and that are provided between the plurality of core wires and isolates the plurality of core wires from each other, the spacer being configured to position the plurality of core wires in a trefoil formation; and an insulative sheath that collectively covers an outside of the plurality of core wires.

Abstract: An electric device terminal apparatus includes: a housing having a fitting portion that can fit together with a partner member; a storage groove provided in the periphery of the fitting portion, on an end surface of the housing that faces the partner member; and a ring-shaped seal member that is provided in the storage groove and water-tightly seals a space between the end surface of the housing and the partner member. The storage groove is filled with a liquid gasket as the seal member.

Abstract: An aquatic plant growing equipment includes a plant growing container which includes a bottom portion graveling sintered soil particles allowing permeation of water and having porous as bed soil and a side portion surrounding the bottom portion, is disposed at an uppermost side, a water purifying container which includes a bottom portion graveling sintered soil particles having porous as bed soil and a side portion surrounding the bottom portion, and with which, at the side portion, a water drain pipe communicating with a pump penetrates through and a water suction hole is installed or a water suction pipe communicating with the pump penetrates through and a water drain hole is installed, is disposed at a lowermost side, and the plant growing container and the water purifying container are coupled directly or are coupled indirectly through another water purifying container and/or plant growing container.

Abstract: When forming molded resin on a terminal-equipped conductive wire, cases where resin inside the mold for insert-molding leaks out from the mold are suppressed. A smooth portion having a smooth outer circumferential surface is formed in a conductive wire of a terminal-equipped conductive wire (smooth portion formation step (S2)). Furthermore, a molded resin member that covers the terminal connection portion is formed in a state where the terminal connection portion provided is inserted into an insert-molding mold, and a portion of the conductive wire that extends from a metal terminal is exposed to the outside through an opening portion of the mold (insert-molding step (S3)). The outer shape of the smooth portion is a shape that corresponds to the opening shape of the opening portion of the mold.

Abstract: When forming molded resin on a terminal-equipped conductive wire, cases where resin inside the mold for insert-molding leaks out from the mold are suppressed. A smooth portion having a smooth outer circumferential surface is formed in a conductive wire of a terminal-equipped conductive wire (smooth portion formation step (S2)). Furthermore, a molded resin member that covers the terminal connection portion is formed in a state where the terminal connection portion provided is inserted into an insert-molding mold, and a portion of the conductive wire that extends from a metal terminal is exposed to the outside through an opening portion of the mold (insert-molding step (S3)). The outer shape of the smooth portion is a shape that corresponds to the opening shape of the opening portion of the mold.

Abstract: A support system for installing a photovoltaic power generator with photovoltaic modules comprising: calculation means for calculating an installation area of the modules on the basis of geographic information.

Abstract: A method for growing ornamental plants by hydroponic cultivation, includes the steps of arranging a piece of a tree in a water tank, adhering support members to the tree, the support members being water permeable which are free to deform, placing plants on the support members, the roots of the plants being integrated with the soil, and supplying water to the support members so as to implement hydroponic cultivation of the plants on the tree.

Abstract: Bottom sand for growing aquatic plants containing a granular sinter consisting essentially of volcanic ash and having a bonding strength to collapse when a pressure of 2.5 kg/cm2 or above is applied on a 1.0 cm thick layer. This bottom sand permits good filtration of water and satisfactory growing of aquatic plants. Aquariums using such bottom sand not only purify the water but also assures satisfactory growth of aquatic plants placed in the aquariums.

Abstract: A method for growing ornamental plants by hydroponic cultivation in a tank and on a piece of a tree and an apparatus therefor, including the steps of arranging a piece of a tree in a water tank; adhering support members to the piece of tree, the support members being water permeable and free to deform; placing a plant on the support members, the roots of the plant being integrated with soil, and supplying water so that the level of water becomes equal to or lower than that of the support members, thereby enabling the realization of hydroponic cultivation of the plants on the piece of tree.

Abstract: It has been known that water having a pH value of 5.5 to 7.5 is suited for the rearing of fresh-water fish and hydroponic cultivation of plants. Bottom soils or filtering media prepared by mixing carbonates of alkali metals or alkali-earth metals with volcano-ash-base soils and sintering the mixture into granules. When used in water tanks or reservoirs for fish rearing or hydroponic cultivation, the bottom soils or filtering media thus prepared provide favorable environments for such rearing and cultivation.

Abstract: A process for the preparation of an analytical sample characterized by depositing and separating solely the impurity to be analyzed from phosphoric acid; a process for analysis of the impurity characterized by depositing and separating solely the impurity from phosphoric acid and applying the separated material to analysis; a process for preparation of high grade phosphoric acid characterized by depositing and separating solely the impurity from phosphoric acid to be purified; a process for the fabrication of a semiconductor device characterized by using phosphoric acid, the impurity content of which is not more than 10−3 Bq/mL, defined by the concentration of a contained radioactive element selected from the group consisting of Pb, Bi and Po, as a processing solution.

Abstract: It has been known that water having a pH value of 5.5 to 7.5 is suited for the rearing of fresh-water fish and hydroponic cultivation of plants. Bottom soils or filtering media prepared by mixing carbonates of alkali metals or alkali-earth metals with volcano-ash-base soils and sintering the mixture into granules. When used in water tanks or reservoirs for fish rearing or hydroponic cultivation, the bottom soils or filtering media thus prepared provide favorable environments for such rearing and cultivation.

Abstract: A process for the preparation of an analytical sample characterized by depositing and separating solely the impurity to be analyzed from phosphoric acid; a process for analysis of the impurity characterized by depositing and separating solely the impurity from phosphoric acid and applying the separated material to analysis; a process for preparation of high grade phosphoric acid characterized by depositing and separating solely the impurity from phosphoric acid to be purified; a process for the fabrication of a semiconductor device characterized by using phosphoric acid, the impurity content of which is not more than 10.sup.-3 Bq/mL, defined by the concentration of a contained radioactive element selected from the group consisting of Pb, Bi and Po, as a processing solution.