Abstract: A sheet with a small change in relative dielectric constant due to change in temperature, is provided. The sheet having a rate of change in relative dielectric constant of 0.020 or less within the temperature range of ?50 to 150° C.

Abstract: A rotor manufacturing method includes: a first magnet-row formation process of forming a magnet row by adjacently arranging and attaching a predetermined plural number of first magnets and a second magnet throughout the whole outer circumference of a rotor core while the rotor core stands on a base flat surface with the magnets brought into abutment against the base flat surface; and a second magnet-row formation process of forming a subsequent magnet row by: inserting and attaching a first magnet to a gap between two first magnets adjacent to the second magnet of the preceding magnet row with the first magnet upwardly protruded from the preceding magnet row; and arranging and attaching the predetermined number of first magnets throughout the whole outer circumference of the rotor core with the magnets brought into abutment against an upper edge of the preceding magnet row in sequence from the preceding magnet row.

Abstract: Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, wherein at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and the coating composition further contains an inorganic filler, a surfactant, a liquid medium, and a non-fluororesin.

Abstract: A distributed training device includes a processor that executes a procedure. The procedure includes: in distributed training in which a plurality of workers is in charge of training processing of each of a plurality of neural networks of multiple neural networks that integrate inference results of the plurality of neural networks and output a final inference result, detecting whether or not a failure has occurred in each of the plurality of workers, determining, when occurrence of a failure is detected in one or more first workers among the plurality of workers, whether or not to continue the distributed training using a second worker other than first workers among the plurality of workers, and in a case of continuing the distributed training, distributing training processing that the first worker is in charge of to the second worker, and continuing the distributed training.

Abstract: Provided is a resin sheet made from fluororesin, having excellent thermal expansion property in the thickness direction. The resin sheet includes a fluororesin and an anisotropic filler. The anisotropic filler is uniaxially oriented in the film thickness direction and randomly oriented in the plane direction.

Abstract: A dielectric that has excellent electrical characteristics and causes no blistering of a copper foil during production of a copper-clad laminate using the dielectric, and a method for producing the same are provided. Further, a copper-clad laminate using the dielectric, and a method for producing the same are provided. A dielectric has a moisture content of 1000 ?g/g or less. The metal-clad laminate has the dielectric and a metal foil.

Abstract: A fluororesin sheet that have achieved both a low coefficient of linear expansion (CTE) and improved adhesiveness to copper foil having a smooth surface, and a copper-clad laminate using the same are obtained. The fluororesin sheet including a fluororesin and a silica particle, in which one or both surfaces of the fluororesin sheet have an oxygen element percentage of 3.0 atomic % or more as measured by X-ray photoelectron spectroscopy (XPS), and the fluororesin sheet has a coefficient of linear expansion (CTE) of 100 ppm/° C. or less.

Abstract: A dielectric that has excellent electrical characteristics and causes no blistering of a copper foil during production of a copper-clad laminate using the dielectric, and a method for producing the same are provided. Further, a copper-clad laminate using the dielectric, and a method for producing the same are provided. The dielectric has a residual organic matter content of 500 ?g/g or less. The metal-clad laminate has the dielectric and a metal foil.

Abstract: A composition for obtaining a sheet with a low linear expansion coefficient while maintaining electrical characteristics, a sheet made of the composition, and a method for producing the same are provided. The composition contains a fluororesin particle and a filler, with a filler content of 67 to 96.5 mass % in the total amount of the fluororesin particle and the filler. The sheet or film is made of a composition containing a fluororesin particle and a filler, with a filler content of 67 to 96.5 mass % in the total amount of the fluororesin particle and the filler.

Abstract: A fluorine-containing copolymer represented by formula (1) or (2): where RF1, Xa, Xb, R4, n, Ra and RF2 are as defined herein. Also disclosed is a surface-treating agent containing the fluorine-containing copolymer, a curable composition containing the fluorine-containing copolymer or surface-treating agent and a matrix forming composition, a film formed from the surface-treating agent or curable composition, and an article including a substrate and a layer formed on a surface of the substrate from the surface-treating agent or curable composition.

Abstract: A soft magnetic metal powder or the like from which a soft magnetic metal fired body can be provided has a high magnetic permeability ? and a specific resistance ? and is contained in a coil-type electronic component having sufficiently high inductance L and Q value and unlikely to be plating-extended and short-circuited. A soft magnetic metal powder contains soft magnetic metal particles containing at least Fe and Ni. Said soft magnetic metal powder further contains P, Si, Cr and/or M. M is at least one selected from among B, Co, Mn, Ti, Zr, Hf, Nb, Ta, Mo, Mg, Ca, Sr, Ba, Zn, Al, and rare earth elements. The content of each element is within a predetermined range.

Abstract: A fluoropolyether-containing compound of the following formula (1a): Ra—R2—R1—Rb (1a) wherein the symbols are as defined in the specification. Also disclosed is a fluoropolyether-containing compound of the following formula (1b): Ra—R2?—R1—Rb (1b), as well as a method for producing a compound of the formula (A): FOC—R2—R1—COOR12 (A) wherein the symbols are as defined in the specification.

Abstract: A dielectric that reduces frequency dependency of a dielectric constant in terahertz high-frequency bands (110 to 330 GHz) of the dielectric constant and a method for producing the same, are provided. The dielectric having a slope of a dielectric constant (Dk) with respect to frequencies from 220 GHz to 330 GHz of 0.00001 or more and 0.0005 or less, as measured with a Fabry-Perot resonator J-band.

Abstract: A composition for obtaining a fluororesin sheet having excellent performance in terms of a low dielectric constant, a low loss, and low thermal expansion, a fluororesin sheet, and a method for producing the same, are provided. The composition containing a fluororesin and a filler having a ratio of (a dielectric loss tangent of the filler measured at 10 GHz)/(a surface area of the filler (m2/g)) of 0.00001 to 0.00035.

Abstract: A molecular dynamics computation device includes a processor that executes a procedure. The procedure includes: executing machine learning of a first force field for predicting energy for an input structure using, as training data, a structure of a coarse-grained model resulting from coarse-graining an all-atom model sampled by molecular dynamics computation based on an all-atom force field and an energy corresponding to the all-atom model structure; and computing molecular dynamics of a coarse-grained model based on a second force field obtained by combining the first force field that has been subjected to machine learning and an energy based on a coarse-grained model structure.

Abstract: A non-transitory computer-readable recording medium stores an information processing program for causing a processor of an information processing apparatus that manages distributed training that uses a plurality of nodes to execute a process. The process includes: obtaining a waiting time until a resource to be used for the distributed training is secured and an execution time taken for the distributed training, for each of execution environments of different numbers of nodes; obtaining a score for each of the execution environments based on the waiting time and the execution time acquired for each of the execution environments; and determining the number of nodes to be used for the distributed training based on a plurality of the scores.

Abstract: Provided is an aqueous coating composition capable of forming a fluororesin coating film layer with excellent electrical properties and surface physical properties, and good adhesive properties. A coating composition containing 2 or more kinds of fluororesins, where at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and where the coating composition further contains an inorganic filler, a surfactant, and a liquid medium.

Abstract: Provided are a solid composition having a low linear expansion coefficient and good moldability, a circuit board, and a method for producing the solid composition. The solid composition contains: a perfluorinated fluororesin; and an anisotropic filler surface-treated with a silane coupling agent.

Abstract: Provided is a coating composition capable of forming a coating film layer, which has low coefficient of linear expansion at low dielectricity, excellent adhesive properties even when the surface of a counterpart material is smooth, and few coating film defects such as cracks and holes. A coating composition including 2 or more kinds of fluororesin emulsions, wherein at least 1 kind of the fluororesin, a fluororesin (I), has a number of functional groups of 30 to 1,000 per 106 main-chain carbon atoms, and the coating composition further includes an anisotropic filler, a surfactant, and a liquid medium.

Abstract: The disclosure aims to provide a composition having excellent UV laser processibility and good electric properties, a circuit board, and a method for producing a composition. The composition contains a perfluorinated fluororesin and zinc oxide.