Abstract: An insulating tape, for coating a connection portion of a power cable, includes a resin material which includes polyethylene at least partially modified by a molecule imparting hydrophilicity, an antioxidant, and a crosslinking agent. The antioxidant has a molecular weight in a range of 190 or more and less than 1050. The antioxidant has a content in a range of 0.05 parts by mass or more and 0.8 parts by mass or less, with respect to 100 parts by mass of the polyethylene. The insulating tape has a thickness in a range of 50 ?m or more and 250 ?m or less.

Abstract: A resin formed body, having a diffraction peak at a position where a scattering vector s is 3.86±0.1 nm?1 in a wide-angle X-ray diffraction measurement, and having at least one melting peak each at respective regions of 129° C. or lower and 159° C. or higher in a differential scanning calorimetry, and with which a peak of tan ? is observed in a range of ?40±10° C. in a dynamic viscoelastic measurement, and a resin composition suitable for preparing the same.

Abstract: An optical fiber includes: a core portion made of glass; a side core layer made of glass and enclosing the core portion; a cladding portion made of glass and enclosing the side core layer; and a coating layer including a primary layer made of resin and enclosing the cladding portion, and a secondary layer made of resin and enclosing the primary layer. The relationships ?1>?Clad>?2 and 0>?2 are satisfied where ?1 represents relative refractive-index difference of average maximum refractive index of the core portion with respect to average refractive index of the cladding portion, ?2 represents relative refractive-index difference of average refractive index of the side core layer with respect to average refractive index of the cladding portion, and ?Clad represents relative refractive-index difference of average refractive index of the cladding portion with respect to refractive index of pure silica glass.

Abstract: An optical device includes: a case; a wiring substrate that passes through the case and that includes an insulating member and a conductor; at least one of components including a first component configured to perform at least one of: outputting a light; receiving a light; and varying optical properties, and a second component configured to electrically control the first component, the at least one of components being housed in the case and flip-chip mounted on the wiring substrate.

Abstract: A composite cable includes a sheath surrounding an outer surface of a core at least including a plurality of thick electric wires each having a resin layer on an outer circumference of a conductor, and a plurality of thin electric wires each having a resin layer on an outer circumference of a conductor, in which the sheath includes a resin composition including base resin containing at least one type of ethylene rubber and styrene elastomer at 10 to 50 mass %.

Abstract: An optical device includes: a multi-mode interference waveguide that includes a first end portion in a first direction and a second end portion in opposite direction to the first direction; a first port that is arranged in the first end portion; a second port that is arranged in the first end portion; a third port that is arranged in the second end portion and that is positioned at a center of the second end portion in the second direction; and two fourth ports that are arranged in the second end portion and that are positioned on both sides of the third port in the second direction.

Abstract: Provided is a cable housing container in which when a container body is installed on an installation surface with mortar, positioning of the container body can be reliably performed in a vertical direction on the installation surface, a height can be easily adjusted during the installation process, an installation time can be shortened, deviation can be reduced when a plurality of container bodies are arranged, and the container body can be prevented from being distorted during manufacturing. A bottom plate 11 of a container body 10 has a reaction force acting surface 11a on which a reaction force acts upon contact with mortar M when the container body 10 is installed on a predetermined installation surface S with the mortar M interposed between the container body 10 and the predetermined installation surface S.

Abstract: Provided is a cable housing container that allows compaction to be reliably performed around a container body when the container body is buried. The cable housing container 1 includes a container body 10 provided with a bottom portion 11 and a pair of side wall portions 12 extending upward from both sides in a width direction of the bottom portion 11 and having an opening 10a formed on an upper surface thereof, the container body 10 being made of resin and being adapted to be buried in a ground.

Abstract: A network system includes a network architecture including: a network layer configured to define an entirety of an electric power network constituted from electric power grids; a local network layer configured to define a local network corresponding to electric power grid groups and forming a part of the electric power network; a grid layer configured to define the electric power grids; a physical layer configured to define constituent elements included in the electric power grids; a first layer configured to define the information communication network that is associated with the network layer; a second layer configured to define the information communication network that is associated with the local network layer; a third layer configured to define the information communication network that is associated with the grid layer; and space, a fourth layer configured to define the information communication network that is associated with the physical layer.

Abstract: An aluminum wire rod has a composition which contains 3.00% by mass or less of Fe and 0.20% by mass or less of Si, and additionally contains a total of from 0.010% by mass to 0.500% by mass of one or more elements selected from the group consisting of Cu, Mn, Mg, Zn, Ti, B, V and Ni, with the balance being made up of Al and unavoidable impurities. With respect to this aluminum wire rod, in a 25 µm × 60 µm region in a cross-section that is perpendicular to the longitudinal direction, the total length of the portions where the crystal misorientation with respect to an adjacent crystal grain is more than 1° but not more than 15° is from 0.6 mm to 4.8 mm; and the electrical conductivity is 55% IACS or more.

Abstract: A chargeable battery abnormality detection apparatus configured to detect an abnormality of a chargeable battery includes a processor; and a memory storing instructions executable by the processor, wherein the processor performs the following when executing instructions: calculating a value of an internal resistance of the chargeable battery; determining whether the chargeable battery is being charged or being discharged; determining that an abnormality has occurred in the chargeable battery if either one of the following occurs: the calculated value of the internal resistance decreases while the chargeable battery is being discharged; and the calculated value of the internal resistance increases while the chargeable battery is being charged; and outputting a determination result of the abnormality.

Abstract: A method of producing an optical fiber preform includes a silica glass body forming step of forming a silica glass body to be at least a portion of a core portion. The method includes an alkali-metal-doped silica glass body forming step of forming an alkali-metal-doped silica glass body doped with an alkali metal around the silica glass body such that the alkali-metal-doped silica glass body contacts the silica glass body. The method further includes a diffusing step of diffusing the alkali metal from the alkali-metal-doped silica glass body to the silica glass body by a heat treatment.

Abstract: The high-frequency transmission line is configured by stacking conductor layers and an insulating layer, and is provided with: a signal via, which extends in a stacking direction and electrically connects the conductor layers together; an input line, which is arranged in one of the conductor layers and inputs an electrical signal to the signal via; a signal line, which is arranged in another one of the conductor layers and is connected to the input line through the signal via; a ground plane, which is arranged in any one of the conductor layers; a conductor arm arranged within a separation region that separates the signal via and the ground plane; and a conductor connection arranged within the separation region and connecting the conductor arm and the ground plane. The conductor arm and the conductor connection are configured to suppress an electrical signal of a predetermined frequency within an electrical signal.

Abstract: A method for making a functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound, and at least one type of metallic nanoparticles present in the skeletal body, the skeletal body having channels connecting with each other, the metallic nanoparticles being present at least in the channels of the skeletal body.

Abstract: An optical device includes: a coupler that includes a first port, a second port, a third port, a fourth port, and a multimode interference waveguide; a first waveguide that is optically connected to the first port, the first waveguide being configured to guide light that is input to the coupler via the first port; a second waveguide that is optically connected to the second port, the second waveguide being configured to guide light that is input to the coupler via the second port; a third waveguide that is optically connected to the third port, the third waveguide being configured to guide light that is output from the coupler via the third port; and a fourth waveguide that is optically connected to the fourth port and, the fourth waveguide being configured to guide light output from the coupler via the fourth port.

Abstract: An aluminum alloy disc blank for a magnetic disc made of an aluminum alloy containing Fe: 0.005 to 1.800 mass % with the balance being Al and inevitable impurities, wherein a flatness change of the aluminum alloy disc blank for a magnetic disc when the aluminum alloy disc blank for a magnetic disc is held in the atmosphere at 50° C. or lower for 336 hours is 2.0 ?m or less.

Abstract: An apparatus for manufacturing an optical fiber preform includes: a holding part that rotatably holds a target with a center axis of the target as a rotation axis; a plurality of burner units that are arranged at mutually different positions in a circumferential direction of the target, forms flames for generating glass particles to be deposited on the target, and are capable of performing reciprocating movements along the target in a movable range between a first position on one end side of the target and a second position on the other end side of the target; and a control unit that controls the plurality of burner units so that speeds of return movements of the plurality of burner units that perform the reciprocating movements are different from each other.

Abstract: A network system includes: a wireless base station configured to relay communication performed by wireless terminals; distributed antennas each being configured to be connected to the wireless base station and form a cell that enables communication with the wireless terminals; direct-current grids each being arranged in a predetermined form in a communication area formed by the cells and configured to interchange power with power devices connected to the subject direct-current grid; a power gate arranged between the direct-current grids located adjacent to each other and configured to interchange power between the adjacent direct-current grids; and a control device configured to control the power gate based on information acquired from the power devices via the distributed antennas. The power devices connected to the direct-current grids are configured to perform communication with the control device via the distributed antennas that form the communication area including the direct-current grids.

Abstract: An optical fiber includes: a core portion made of glass; and a cladding portion made of glass, having a refractive index lower than the refractive index of the core portion, and positioned on an outer periphery of the core portion. Further, the cladding portion has an outer diameter smaller than 100 ?m, and the core portion has a relative refractive-index difference of 0.32% to 0.40% with respect to the cladding portion.

Abstract: The evaporation unit structure of a heat transport member that is an evaporation unit structure of the heat transport member in which a container including an internal space in which the working fluid is enclosed includes an evaporation unit in which the working fluid in a liquid phase changes in phase, and a condensation unit in which the working fluid in a gas phase changes in phase, wherein a sintered body layer is provided on an inner surface of the evaporation unit, the sintered body layer with an average thickness n is composed of a first site that is a region of n/2 on an inner surface side of the container, and a second site that is a region of n/2 on the internal space side, and a percentage of voids of the first site is less than a percentage of voids of the second site.