Abstract: A power conversion device includes a multilayer board including conductive layers that form a primary-side coil and a secondary-side coil of a transformer; and a circuit board electrically connected to the multilayer board, having a first conversion circuit formed therein or thereon. The multilayer board includes a transformer region in which the transformer is formed; a core member disposed in the transformer region and around the primary-side coil and secondary-side coil are wound; a circuit formed region which is adjacent to the transformer region and a second conversion circuit is formed, the second conversion circuit being electrically connected to the primary-side coil or the secondary-side coil; and a terminal portion which is electrically connected to the secondary-side coil or the primary-side coil. The first conversion circuit is electrically connected to the transformer via the terminal portion. One of the coils has a smaller number of turns than the other coil.

Abstract: The resin composition according to an aspect of the present disclosure is a resin composition containing a photopolymerizable compound comprising urethane (meth)acrylate and a polyrotaxane, and a photopolymerization initiator, and the content of the polyrotaxane is 0.05% by mass or more and 11% by mass or less based on the total amount of the photopolymerizable compound.

Abstract: The installation angle of a radar for traffic monitoring can be easily adjusted. A radar installation-angle adjustment method is a radar installation-angle adjustment method of adjusting an installation angle of an infrastructure radio-wave radar configured to detect an object in a target area. The method includes first adjustment of adjusting an angle of a radar installed at an installation target without operating the radar; and second adjustment of operating the radar the angle of which has been adjusted in the first adjustment, and adjusting the angle of the radar based on a detection result of the radar.

Abstract: A cutting tool including a substrate and a coating film disposed on the substrate, wherein the cutting tool includes: a rake face, a flank face contiguous to the rake face; and a cutting edge region composed of a boundary part between the rake face and the flank face, wherein the coating film includes a TiSiCN layer, the TiSiCN layer has: a first TiSiCN layer positioned in the rake face; and a second TiSiCN layer positioned in the cutting edge region, the first TiSiCN layer has a composition of Ti(1-Xr)SiXrCN, the second TiSiCN layer has a composition of Ti(1-Xe)SiXeCN, and the Xr and the Xe each represent 0.010 or more and 0.100 or less, and satisfy a relationship of Xr?Xe?0.003.

Abstract: An optical connection structure includes a MCF, a first ferrule, a plurality of optical fibers, and a second ferrule. The MCF includes first cores and a first cladding. The first ferrule has a first inner hole and a first ferrule end surface. Each optical fiber optically connected to the MCF includes a second core and a second cladding. The second ferrule has a second inner hole housing tip parts of the optical fibers, and a second ferrule end surface. The second ferrule fixes the tip parts of the optical fibers in the second inner hole by an adhesive. The adhesive is packed in the second inner hole such that a surface of the adhesive is recessed from the second ferrule end surface into the second inner hole. A refractive-index matching material is applied in a space sealed by the first ferrule end surface and the second ferrule end surface.

Abstract: A high frequency amplifier includes an asymmetrical Doherty amplifier having a carrier amplifier, a peak amplifier, a branch circuit, and a phase adjusting circuit, a driver amplifier, and a base member mounting a first circuit board mounting the driver amplifier, the carrier amplifier, and the peak amplifier and a second circuit board mounting the circuits. The branch circuit divides a path of a RF signal into input paths of the peak and carrier amplifiers. The driver amplifier, the carrier amplifier, and the peak amplifier have rear surfaces in contact with the base member. The electrical length from the output terminal of the driver amplifier to the input terminal of the peak amplifier, when converted based on a phase of the signal, is from (2n+1)×???/4 to (2n+1)×?+?/4, where n is an integer greater than or equal to zero.

Abstract: A resin composition for an insulating layer includes: an olefinic resin as a main component; and a metal deactivator, wherein the olefinic resin consists of block polypropylene and polyethylene, and wherein a content of the polyethylene in the olefinic resin is greater than or equal to 1% by mass and less than or equal to 10% by mass.

Abstract: This raw material supply device supplies a raw material for producing glass fine particle deposits, to a burner and includes a raw material tank; a liquid raw material pipe having one end thereof connected to the raw material tank; a liquid raw material pressure feed pump that pumps siloxane, being a liquid raw material, from the raw material tank via the liquid raw material pipe; a pressure adjustment valve provided on a secondary side of the liquid raw material pressure feed pump in the liquid raw material pipe; an MFC for liquid, connected to the other end of the liquid raw material pipe; and an aeration device that is connected to the secondary side of the MFC for liquid and aerates the liquid raw material. The pipe on the secondary side of the pressure adjustment valve is connected to a location having lower pressure than the primary side pressure.

Abstract: An optical fiber comprises a glass fiber comprising a core and a cladding, a primary resin layer being in contact with the glass fiber and covering the glass fiber, and a secondary resin layer covering the primary resin layer, wherein the Young's modulus of the primary resin layer is 0.04 MPa or more and 1.0 MPa or less at 23° C.±2° C., the secondary resin layer consists of a cured product of a resin composition comprising a base resin containing a urethane (meth)acrylate oligomer, a monomer, and a photopolymerization initiator and hydrophobic inorganic oxide particles, and the content of the inorganic oxide particles is 1% by mass or more and 60% by mass or less based on the total amount of the resin composition.

Abstract: A semiconductor device of the present disclosure includes: a semiconductor substrate having a first main surface; a first aluminum electrode having a first surface facing the first main surface and a second surface opposite to the first surface, the first aluminum electrode being disposed on the semiconductor substrate; a passivation film that covers a peripheral edge of the second surface and that is provided with an opening from which a portion of the second surface is exposed; and a copper film. The second surface exposed from the opening is provided with a recess that is depressed toward the first surface. The copper film is disposed in the recess.

Abstract: A cemented carbide composed of a first hard phase, a second hard phase and a binder phase, in which the first hard phase is composed of tungsten carbide particles, the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN, the second hard phase has an average particle diameter of 0.25 ?m or less, the second hard phase has a dispersity of more than 0.70 and 17.0 or less, the second hard phase has a content of 0.1 vol % or more and 15 vol % or less, the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and the binder phase has a content of 0.1 vol % or more and 19.0 vol % or less.

Abstract: A multicore cable includes a plurality of covered wires having a lubricant powder provided on surfaces thereof, and an outer sheath layer covering outer surfaces of the plurality of covered wires. The outer surfaces of the plurality of covered wires, and the outer sheath layer, make contact with one another via the lubricant powder. A coverage of the outer surfaces of the plurality of covered wires by the lubricant powder is greater than or equal to 15%.

Abstract: A silicon carbide substrate has a first main surface and a second main surface opposite to the first main surface. The silicon carbide substrate includes screw dislocations and pits having a maximum diameter of 1 ?m or more and 10 ?m or less in a direction parallel to the first main surface. When the screw dislocations and the pits are observed in the first main surface, a percentage obtained by dividing a number of the pits by a number of the screw dislocations is 1% or less. A concentration of magnesium in the first main surface is less than 1×1011 atoms/cm2.

Abstract: A method of manufacturing a photo detector includes preparing a substrate having a first main surface and a second main surface opposite to the first main surface, forming a semiconductor layer on the first main surface, forming a passivation layer having an opening on the semiconductor layer, forming an electrode on the semiconductor layer exposed through the opening, bringing the passivation layer into contact with an etchant after the electrode is formed, and inspecting characteristics after the bringing into contact with an etchant. In the method, the etchant has a higher etching rate for the semiconductor layer than the passivation layer.

Abstract: A resin composition contains: a base resin including a polyolefin; a modified polyolefin obtained by grafting a polar group onto a polyolefin; and an inorganic filler including magnesium oxide and surface-treated with a silane coupling agent. A remaining rate R of the inorganic filler in a fractured frozen surface is 50% or more. The remaining rate R is calculated using the following expression (1). R=(Df/Dc)×100 . . . (1). Df represents a density of the inorganic filler remaining in a fractured surface of a sheet formed of the resin composition containing the base resin, the modified polyolefin, and the inorganic filler, when the sheet is immersed in liquid nitrogen for 1 hour and then fractured. Dc represents a reference density of the inorganic filler detected in a cut surface of the sheet formed of the resin composition, when the sheet is cut at 24° C. using a focused ion beam without being frozen.

Abstract: A wiring module is a wiring module that is mounted on a plurality of power storage elements. The wiring module includes busbars that are connected to electrode terminals of the plurality of power storage elements, flexible substrates that are connected to busbar-side connection parts provided at the busbars, a circuit substrate that is connected to the flexible substrates, and a protector on which the busbars, the flexible substrates, and the circuit substrate are placed. An upper surface of the circuit substrate is disposed above upper surfaces of the busbar-side connection parts.

Abstract: A resin composition contains a base resin including a polyolefin and an inorganic filler including silicon dioxide and surface-treated with a silane coupling agent. A remaining rate R of the inorganic filler in a fractured frozen surface is 50% or more. The remaining rate R is calculated using the following expression (1). R=(Df/Dc)×100 . . . (1). Df represents a density of the inorganic filler remaining in a fractured surface of a sheet formed of the resin composition containing the base resin and the inorganic filler, when the sheet is immersed in liquid nitrogen for 1 hour and then fractured. Dc represents a reference density of the inorganic filler detected in a cut surface of the sheet formed of the resin composition, when the sheet is cut at 24° C. using a focused ion beam without being frozen.

Abstract: The information providing system includes: a working terminal; and an instructing terminal that communicates with the working terminal. The working terminal includes: a working communication device that outputs imaging information including an image of the facility captured with a camera; and a working display that displays working information concerning the work carried out in the facility. The instructing terminal includes: an instructing display that displays the captured image based on the imaging information; an interface that receives instructing information serving to offer an instruction for the work carried out in the facility; and an instructing communication device that outputs the instructing information. The working terminal displays, on the working display, the captured image processed based on the imaging information and the instructing information, as the working information.

Abstract: A thermoelectric conversion material contains a matrix composed of a semiconductor and nanoparticles disposed in the matrix, and the nanoparticles have a lattice constant distribution ?d/d of 0.0055 or more.

Abstract: An inductor includes: a magnetic core; a conduction path penetrating the magnetic core; a pedestal portion including a core holding portion that holds the magnetic core, and support portions that support, when placed on a circuit board, electronic components at a height at which the electronic components can be accommodated on the circuit board side with respect to the core holding portion; and a shield portion that is provided on the circuit board side with respect to the magnetic core, and that shields a magnetic field generated by flow of electricity in the conduction path.