Abstract: An electro-optical device includes an electro-optic crystal, a first electrode, and a second electrode. A voltage is applied to the electro-optic crystal by the first electrode and the second electrode. The electro-optic crystal has an incident surface and an emitting surface parallel to each other and deflects incident light made incident on the incident surface at an acute incident angle in an electric field direction in which a voltage is applied. A rotation axis of an incident angle is parallel to the electric field direction.

Abstract: A rotor manufacturing apparatus of an embodiment includes a rotor core support unit and a magnet support mechanism. The magnet support mechanism includes a pair of support members and a driving unit. The pair of support members face each other in a facing direction orthogonal to both a radial direction and an axial direction. A magnet is disposed between the pair of support members. The driving unit moves the pair of support members close to each other and away from each other in the facing direction. Each of the pair of support members includes a support surface. The pair of support surfaces face each other in the facing direction. The pair of support surfaces contact circumferential end surfaces of the magnet. The pair of support surfaces are respectively inclined away from each other in the facing direction outwardly in the radial direction.

Abstract: The Vce detection circuit detects a rise of an inter-electrode voltage between a positive electrode and a negative electrode when the semiconductor switching element is being turned off. The drive circuit is configured to regulate a time to lower the gate drive capability from a first drive capability to a second drive capability based on a detection result of the Vce detection circuit during the turn-off operation of the semiconductor switching element.

Abstract: Provided is an image sensor including: a pixel section configured to include a plurality of pixels arranged therein; and an AD conversion unit configured to perform analog-to-digital (AD) conversion on a pixel signal on the basis of a result of comparison between a first voltage of a signal, which is obtained by adding, via capacitances, the pixel signal of the pixel and a reference signal that linearly changes in a direction opposite to the pixel signal, with a second voltage serving as a reference.

Abstract: An angle measurement device according to the present invention relates to an angle measurement device for measuring an incident angle of an incident light ray, and includes: at least one light deflector; a driving power supply; a light receiver; and a calculation unit. The light deflector is of a transmission type, has an electro-optic effect, and is configured to change an optical path of the light ray by a voltage applied from the driving power supply, and cause the light ray to enter the light receiver. The calculation unit is configured to calculate the incident angle based on the voltage at which an intensity of the light ray detected by the light receiver is maximum.

Abstract: Provided is a surface-treated steel sheet that can be produced without using hexavalent chromium and is excellent in adhesion to BPA-free paint and BPA-free painting corrosion resistance. A surface-treated steel sheet comprises: a steel sheet; a metallic Cr layer disposed on a surface of the steel sheet on at least one side; and a Cr oxide layer disposed on the metallic Cr layer, wherein a contact angle of ethylene glycol is 50° or less, and a total atomic ratio of K, Na, Mg, and Ca adsorbed on a surface of the surface-treated steel sheet on the at least one side to Cr is 5.0% or less.

Abstract: An optical deflection apparatus is provided with an optical deflection element and a compensating optical element. The optical deflection element deflects incident light in a first direction (a voltage application direction) in which a voltage is applied (one-dimensional scan). The compensating optical element is an element which has an incidence surface and an emission surface, which compensates for a deflection deviation in a second direction that is perpendicular to the first direction and to an optical axis of the incident light of deflected light having been deflected by the optical deflection element and incident from the incidence surface, and which arranges a direction of travel of compensated light to be emitted from the emission surface on a same plane.

Abstract: It is provided a surface-treated steel sheet that can be produced without using hexavalent chromium and has excellent film wet adhesion and coating secondary adhesion as well as high film corrosion resistance and coating corrosion resistance. It is a surface-treated steel sheet having: a steel sheet; a metallic Cr layer disposed on at least one surface of the steel sheet; and a Cr oxide layer disposed on the metallic Cr layer, and the surface-treated steel sheet has a water contact angle of 50° or less and a total atomic ratio of K, Na, Mg, and Ca adsorbed on the surface to Cr of 5% or less.

Abstract: It is provided a surface-treated steel sheet that can be produced without using hexavalent chromium and has excellent sulfide staining resistance and coating secondary adhesion. It is a surface-treated steel sheet having: a Sn plating layer; a metallic Cr layer disposed on the Sn plating layer; and a Cr oxide layer disposed on the metallic Cr layer, on at least one surface of a steel sheet, and the surface-treated steel sheet has a water contact angle of 50° or less and a total atomic ratio of K, Na, Mg, and Ca adsorbed on the surface to Cr of 5% or less.

Abstract: An accommodation management system includes: a first acquisition unit that obtains a face image of a visiting user who uses a check-in terminal installed at a visible position from a reception counter of an accommodation facility; an execution unit that identifies the visiting user on the basis of the face image of the visiting user and performs a check-in process of the visiting user; a second acquisition unit that obtains a face image of a specific user who uses services; and a permission unit that permits a use of the services when the check-in process is completed for the specific user who is identified on the basis of the face image of the specific user.

Abstract: An information processing system is configured to execute: storing game media possessed by a player; storing, in a preliminary period, first group information for identifying game media corresponding to a first game condition in a first storage area and second group information for identifying game media corresponding to a second game condition in a second storage area; storing, in a post period, the second group information in the first storage area; enabling, in the preliminary period, the execution of games using the first and second group information; enabling, in the post period, the execution of a game using the second group information stored in the first storage area and disabling the execution of a game using the first group information; and storing, in the first storage area in the post period, the second group information stored in the second storage area in the preliminary period.

Abstract: A polishing pad (1) of the present teaching is formed in an annular shape and is centered on a first rotation axis center (P). The polishing pad (1) has a first surface (1a), a second surface (1b), and a polishing surface (3) that connects the first surface (1a) and the second surface (1b) on an outer circumference of the polishing pad (1). The polishing pad (1) polishes a notch (7), which is formed in a disc-shaped wafer (5) and indicates an orientation of a crystal axis, by rotating around the first rotation axis center (P) while pressing the polishing surface (3) against the notch (7). The polishing surface (3) is formed of a polishing body that includes: a base material composed of a binder resin and fibers and having a plurality of pores formed therein; and polishing particles retained in the base material or in the pores.

Abstract: A method of producing a surface-treated steel sheet, comprising: subjecting a steel sheet having a Sn coating or plating layer to an anodic electrolytic treatment in an alkaline aqueous solution to form a Sn oxide layer; and then subjecting the steel sheet to a cathodic electrolytic treatment in an aqueous solution containing zirconium ions to form a layer containing zirconium oxide, wherein the Sn coating or plating layer has a Sn coating weight of 0.1 g/m2 to 20.0 g/m2, the Sn oxide layer has, at a point in time when the Sn oxide layer is formed, a reduction current peak within a potential range of ?800 mV to ?600 mV and an electric quantity of a reduction current in the potential range of 1.5 mC/cm2 to 10.0 mC/cm2, and the layer containing zirconium oxide has a Zr coating weight of 0.1 mg/m2 to 50.0 mg/m2.

Abstract: It is provided a surface-treated steel sheet that can be produced without using hexavalent chromium and has excellent sulfide staining resistance and coating secondary adhesion. It is a surface-treated steel sheet having: a Sn plating layer; a metallic Cr layer disposed on the Sn plating layer; and a Cr oxide layer disposed on the metallic Cr layer, on at least one surface of a steel sheet, and the surface-treated steel sheet has a water contact angle of 50° or less and a total atomic ratio of K, Na, Mg, and Ca adsorbed on the surface to Cr of 5% or less.

Abstract: An accommodation management system includes: a first acquisition unit that obtains a face image of a visiting user who uses a check-in terminal installed at a visible position from a reception counter of an accommodation facility; an execution unit that identifies the visiting user on the basis of the face image of the visiting user and performs a check-in process of the visiting user; a second acquisition unit that obtains a face image of a specific user who uses services; and a permission unit that permits a use of the services when the check-in process is completed for the specific user who is identified on the basis of the face image of the specific user.

Abstract: An accommodation management system includes: a first acquisition unit that obtains a face image of a visiting user who uses a check-in terminal installed at a visible position from a reception counter of an accommodation facility; an execution unit that identifies the visiting user on the basis of the face image of the visiting user and performs a check-in process of the visiting user; a second acquisition unit that obtains a face image of a specific user who uses services; and a permission unit that permits a use of the services when the check-in process is completed for the specific user who is identified on the basis of the face image of the specific user.

Abstract: It is provided a surface-treated steel sheet that can be produced without using hexavalent chromium and has excellent film wet adhesion and coating secondary adhesion as well as high film corrosion resistance and coating corrosion resistance. It is a surface-treated steel sheet having: a steel sheet; a metallic Cr layer disposed on at least one surface of the steel sheet; and a Cr oxide layer disposed on the metallic Cr layer, and the surface-treated steel sheet has a water contact angle of 50° or less and a total atomic ratio of K, Na, Mg, and Ca adsorbed on the surface to Cr of 5% or less.

Abstract: An accommodation management system includes: a first acquisition unit that obtains a face image of a visiting user who uses a check-in terminal installed at a visible position from a reception counter of an accommodation facility; an execution unit that identifies the visiting user on the basis of the face image of the visiting user and performs a check-in process of the visiting user; a second acquisition unit that obtains a face image of a specific user who uses services; and a permission unit that permits a use of the services when the check-in process is completed for the specific user who is identified on the basis of the face image of the specific user.

Abstract: A nozzle, a coating device, and a coating method are able to selectively and easily apply a coating liquid to desired portion of a medical elongated body. The nozzle includes a nozzle distal portion that is provided with a holding space in which a coating liquid to be applied to a shaft can be held, and a nozzle main body portion that is provided with a lumen through which the coating liquid is delivered to the nozzle distal portion, and an opening portion via which the lumen and the holding space communicate with each other.

Abstract: A process for producing acetic acid by: a reaction step for continuously allowing methanol to react with carbon monoxide in the presence of a catalyst system comprising a metal catalyst, an ionic iodide, and methyl iodide in a carbonylation reactor, a flash distillation step for continuously feeding a flasher with a reaction mixture from the reactor and evaporating a volatile component at least containing product acetic acid, methyl acetate, and methyl iodide by flash distillation to separate the volatile component and a liquid catalyst mixture at least containing the metal catalyst and the ionic iodide, and an acetic acid collection step for separating a stream containing acetic acid from the volatile component to collect acetic acid; wherein, in the flash distillation step, the flash distillation is conducted under the condition that the concentration of methyl acetate in the liquid catalyst mixture is not less than 0.6% by weight.