Abstract: An opposed-piston engine includes: a cylinder; a one-side piston disposed inside the cylinder on one side in an axial direction; and an other-side piston disposed inside the cylinder on another side in the axial direction. Atop surface of the one-side piston has a one-side cavity recessed in a central portion. A top surface of the other-side piston has an other-side cavity recessed in a central portion. An outer peripheral edge of the one-side cavity is at least 0.1D1 away from an outer peripheral edge of the top surface of the one-side piston over the entire circumference, where D1 is a diameter of the top surface of the one-side piston. An outer peripheral edge of the other-side cavity is at least 0.1D2 away from an outer peripheral edge of the top surface of the other-side piston over the entire circumference, where D2 is a diameter of the top surface of the other-side piston.

Abstract: According to one embodiment, a structure evaluation system includes at least three or more sensors, a position locator, and an evaluator. The three or more sensors are arranged on surfaces different from a surface to which an impact is applied with respect to a structure at different intervals in a first direction of the structure and a second direction orthogonal to the first direction and detects elastic waves generated from the structure. The position locator locates a position of a source in which the elastic waves are generated on the basis of the elastic waves detected by each of the three or more sensors. The evaluator evaluates a deterioration state of the structure on the basis of information based on a position location process of the position locator and information indicating a position where the impact is applied.

Abstract: The photosensitive resin composition of the present invention includes a polymer A having a structural unit represented by General Formula (a) and a polymer B including a polyimide having a group b represented by General Formula (b).

Abstract: According to one embodiment, a structure evaluation system includes an impact imparting unit, a plurality of sensors, a position locator, and an evaluator. The impact imparting unit applies impacts to a second region different from a first region of a structure to which traveling sections of a vehicle, which travels on the structure, apply impacts. The plurality of sensors detect elastic waves generated in the structure. The position locator locates a position of a source of the elastic waves on the basis of the elastic waves detected by each of the plurality of sensors. The evaluator evaluates a deterioration state of the structure on the basis of a position location result of the position locator.

Abstract: In a case where the first time period is longer than the second time period, the electronic apparatus obtains the first temperature as an estimated ambient temperature. In a case where a first time period that is a time period from when the electronic apparatus has been placed in the power-OFF state until when the electronic apparatus has been switched to the power-ON state is not longer than a second time period being a time period required for the first temperature to decrease to an ambient temperature after the electronic apparatus has been placed in the power-OFF state, the electronic apparatus obtains the estimated ambient temperature based on the first temperature and on a temperature difference between the first temperature and the ambient temperature corresponding to a time difference between the first time period and the second time period.

Abstract: Provided is a coating film which is obtained by applying a composition for forming a coating film, the composition containing a copolymer, and which is used to suppress adhesion of a biological substance, in which the copolymer is water-insoluble, the copolymer contains a repeating unit (A) represented by the following Formula (A) and a repeating unit (B) represented by the following Formula (B), and a molar ratio (A:B) of the repeating unit (A) to the repeating unit (B) in the copolymer is 89:11 to 50:50. (In the formula, R1 to R3 each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and X1 and X2 each independently represent a single bond, an ester bond, an ether bond, an amide bond, or an alkylene group having 1 to 5 carbon atoms which may be interrupted by an oxygen atom.

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.

Abstract: A cutting tool comprises a substrate and a coating film disposed on the substrate, wherein the coating film comprises a first layer and a second layer; the first layer has a hardness H1 of 25 GPa or more and 40 GPa or less; the second layer has a hardness H2 satisfying 0.5×H1?H2?0.9×H1; and at least one of a ratio I(200)/(I(200)+I(111)+I(220)) of I(200) of (200) plane to a sum of X-ray diffraction intensity I(200) of (200) plane, X-ray diffraction intensity I(111) of (111) plane, and X-ray diffraction intensity I(220) of (220) plane of the coating film, a ratio I(111)/(I(200)+I(111)+I(220)) of I(111) to the sum, and a ratio I(220/(I(200)+I(111)+I(220)) of I(220) to the sum is 0.45 or more.

Abstract: The disclosure aims to provide a composition having excellent UV laser processibility, a circuit board, and a method for producing a composition. The composition contains a fluororesin and a nitrogen-containing heterocyclic compound having a 18 by mass reduction temperature during pyrolysis of 330° C. or higher, and has an absorbance of light with a wavelength of 355 nm of 0.6 or higher.

Abstract: A mobile device (10) is a mobile device (10) that operates in order to image a subject (5), the mobile device (10) including an imaging unit (13), a sensor (14) that recognizes a surrounding environment, and a light emitting unit (15) disposed on a housing (12) in a ring shape or on the entire surface of the housing (12). The operation of the mobile device (10) includes imaging, based on a set photographing plan, with the imaging unit (13), the subject (5) recognized by the sensor (14) as the mobile device (10) moves. The light emitting unit (15) performs a light emission expression corresponding to at least one of the photographing plan and the operation of the mobile device (10).

Abstract: An engine according to an embodiment includes at least one cylinder, at least one piston disposed in the at least one cylinder, a plurality of fuel injection valves disposed on the at least one cylinder, the plurality of fuel injection valves including a first fuel injection valve having a predetermined total hole area and a second fuel injection valve having a total hole area smaller than the total hole area of the first fuel injection valve, and a control device for controlling the first fuel injection valve and the second fuel injection valve according to a load of the engine.

Abstract: A system is provided which can achieve reliability of a notification about a moving manner of a work machine for a worker regardless of the distance between the work machine and the worker. A sign image M is projected onto a peripheral region of the worker (for example, a ground surface which is present in the vicinity of the worker to the extent that the worker is capable of visually recognizing the sign image M) by an unmanned aircraft 60. The sign image M is an image which represents a moving manner of a work machine 40. Thus, regardless of the distance between the work machine 40 and the worker, reliability of a notification about the moving manner of the work machine 40 for the worker is achieved compared to a case where the sign image M is projected onto an irrelevant place to the position of the worker.

Abstract: A method of manufacturing a semiconductor device includes accommodating a substrate in a process chamber; supplying a first gas containing oxygen into the process chamber; generating plasma in the process chamber by exciting the first gas; supplying a second gas containing hydrogen into the process chamber and adjusting a hydrogen concentration distribution in the process chamber according to a density distribution of the plasma in the process chamber; and processing the substrate with oxidizing species generated by the plasma.

Abstract: A laminate, including a fluororesin sheet; and a base material. The fluororesin sheet including a fluororesin composition containing: a melt moldable fluororesin; and a silica. The fluororesin is a tetrafluoroethylene-perfluoro(alkyl vinyl ether) copolymer and/or a tetrafluoroethylene-hexafluoropropylene copolymer having 25 or more carbonyl group-containing functional groups per 106 main-chain carbon atoms; the silica is a spherical silica; a blending ratio of the spherical silica to a total amount of the fluororesin and the silica is 50% by mass or higher and 70% by mass or lower; the fluororesin composition has a linear expansion coefficient of 100 ppm/° C. or lower and a melt flow rate (MFR) of 1.0 g/10 min or higher and 30 g/10 min or lower. Also disclosed is a substrate for circuits including the fluororesin sheet used as a part in a multilayer structure.

Abstract: An electrolytic capacitor includes an anode body that includes a porous body and a dielectric layer covering the porous body, and a solid electrolyte layer that covers the dielectric layer. The porous body has a first region located near an outer surface of the porous body, and a second region other than the first region. The first region is a region in which a distance from the outer surface of the porous body is shorter than 0.5D, where D is a shortest distance between the outer surface of the porous body and a center of the porous body. A filling proportion R2 of the solid electrolyte layer in the second region is less than a filling proportion R1 of the solid electrolyte layer in the first region. A ratio R2/R1 of the filling proportion R2 to the filling proportion R1 is less than or equal to 1/10.

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead having a sheet shape, a cathode layer, an anode lead frame electrically connected to the anode lead, and a cathode lead frame electrically connected to the cathode layer. The anode lead includes an embedded portion embedded in the anode body and a protrusion portion protruding to an outside of the anode body. The anode lead has a first main surface facing the cathode lead frame and a second main surface opposite to the first main surface. The anode lead is located between a center of the anode body and an end face of the anode body in a first direction in which the first main surface faces the cathode lead frame. The end face of the anode body is positioned at a side close to the cathode lead frame.

Abstract: A fluororesin composition containing a melt moldable fluororesin and a silica, wherein the fluororesin has 25 or more carbonyl group-containing functional groups per 106 main-chain carbon atoms; the silica is a spherical silica; and the fluororesin composition has a linear expansion coefficient of 100 ppm/° C. or lower. Also disclosed is a fluororesin sheet including the fluororesin composition, a laminate including a copper foil layer and a layer including the fluororesin composition and a substrate for circuits including a copper foil layer and a layer including the fluororesin composition.

Abstract: Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first phosphor particles; and second phosphor layer that is disposed on a side reverse to the incidence side and contains a plurality of second phosphor particles. First phosphor particles include an activation component, second phosphor particles include an activation component same as or different from the activation component included in first phosphor particles, and a concentration of the activation component in first phosphor layer is lower than a concentration of the activation component in second phosphor layer.

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: According to one embodiment, a structure evaluation system of an embodiment includes one or more sensors, a signal processing apparatus, and an evaluator. The plurality of sensors detect elastic waves generated from a structure. The signal processing apparatus calculates information on a frequency distribution by amplitude scale based on the plurality of elastic waves detected by each of the one or more sensors, and transmits the calculated information on the frequency distribution by amplitude scale in a wireless manner. The evaluator evaluates a state of deterioration of the structure based on the information on the frequency distribution by amplitude scale which is transmitted from the signal processing apparatus.