Abstract: High-accuracy multimodal biometric authentication of a plurality of body organisms is achieved while suppressing postural fluctuation when the plurality of body organisms are captured. An authentication system stores feature quantities for body organisms in association with users and performs biometric authentication on the basis of images from a capture device. The capture device photographs a first body organism of a first user during a first period and captures a second body organism and a third body organism of the first user during a second period. The authentication processing device calculates a first feature quantity from the first body part photographed during the first period, respectively calculates a second feature quantity and a third feature quantity from the second body organism and the third body organism captured during the second period, and compares with the feature quantities for the body organisms of each user stored at the storage device.

Abstract: Alight emitting device including a substrate, a lens with a refractive index n arranged on a main surface of the substrate, and a light emitting region arranged between the main surface and the lens is provided. A surface of the lens is convex and includes a vertex and an end portion. In a case where h represents a height between the vertex and the end portion, r represents a distance between the vertex and the end portion in orthogonal projection to the main surface, H represents a height between the end portion and the light emitting region, and 2a represents a width of the light emitting region, relationships of expressions below are satisfied h<r, ?<55°, and a>r?Htan?, where 2rh/(r2+h2)=sin?, sin?=nsin?, ?-?=?, and nsin?=sin?.

Abstract: A photographing apparatus includes: an imaging unit which is arranged at a position opposed to a plurality of fingers to be presented, and is configured to image the plurality of fingers; and a plurality of light sources which are arranged in plurality in an array direction of the plurality of fingers, and are configured to irradiate the plurality of fingers with light from an outside of an opposing region in which the imaging unit is opposed to the plurality of fingers toward an inside of the opposing region.

Abstract: A method for manufacturing a higher purity nitrile solvent by purifying a nitrile solvent containing an impurity, e.g an imine. The nitrile solvent may contain an imine and a conjugated diene, a carbonyl compound, or a high-boiling material as impurities. A method for purifying a nitrile solvent, such as isobutyronitrile, including bringing nitrile solvent containing an imine, e.g., as an impurity, into contact with an acidic aqueous solution having a pH of 3 or less, such as hydrochloric acid; bringing the nitrile solvent having been contacted with acidic aqueous solution into contact with an aqueous sodium hydrogen sulfite solution; bringing the nitrile solvent having been contacted with the aqueous sodium hydrogen sulfite solution into contact with an alkaline aqueous solution, such as an aqueous sodium hydroxide solution; and distilling the nitrile solvent having been contacted with the alkaline aqueous solution.

Abstract: A method for manufacturing a higher purity nitrile solvent by purifying a nitrile solvent containing an impurity, e.g an imine. The nitrile solvent may contain an imine and a conjugated diene, a carbonyl compound, or a high-boiling material as impurities. A method for purifying a nitrile solvent, such as isobutyronitrile, including bringing nitrile solvent containing an imine, e.g., as an impurity, into contact with an acidic aqueous solution having a pH of 3 or less, such as hydrochloric acid; bringing the nitrile solvent having been contacted with acidic aqueous solution into contact with an aqueous sodium hydrogen sulfite solution; bringing the nitrile solvent having been contacted with the aqueous sodium hydrogen sulfite solution into contact with an alkaline aqueous solution, such as an aqueous sodium hydroxide solution; and distilling the nitrile solvent having been contacted with the alkaline aqueous solution.

Abstract: The present invention provides a compound characterized by being represented by general formula (I): (wherein, A represents a halogen atom, alkyl group, haloalkyl group, alkoxy group, haloalkoxy group, alkylsulfonyl group, unsubstituted or substituted aryl group, cyano group or nitro group, n represents an integer of 0 to 5 (and A may be mutually the same or different when n is 2 or more), Y represents an alkyl group, M represents an alkaline metal or alkaline earth metal, and m represents an integer of 1 or 2).

Abstract: The present invention provides a compound characterized by being represented by general formula (I): (wherein, A represents a halogen atom, alkyl group, haloalkyl group, alkoxy group, haloalkoxy group, alkylsulfonyl group, unsubstituted or substituted aryl group, cyano group or nitro group, n represents an integer of 0 to 5 (and A may be mutually the same or different when n is 2 or more), Y represents an alkyl group, M represents an alkaline metal or alkaline earth metal, and m represents an integer of 1 or 2).

Abstract: A coating roller device which rotatably supports on a supporting shaft a tubular cylindrical coating roller body provided with delivery holes for a coating material through its circumferential wall, and which is adapted to feed a coating material to the roller body, incorporates within the roller body a scraper means extending substantially the whole length of the roller body, and having a scraping element fixed on the supporting shaft and approximating the inner circumferential surface of the roller body. The roller body is rotatable relatively to the scraper means. When the roller body is brought into contact with a surface and is moved therealong by using the supporting shaft, the roller body rotates relatively to the scraper means, whereby the coating material fed into the roller body is scraped off the inner surface thereof through the delivery holes in the circumferential wall of the roller body by the scraping element of the scraper means.