Abstract: The present invention relates to a conversion device for converting a treatment beam for treating a lesion of a subject, comprising: a collimator unit to which the treatment beam is incident and which has a plurality of slits; and a scattering unit that scatters the treatment beam that has passed through the collimator unit.

Abstract: Provided is a radiation irradiation device and method in which radiation intensity can be adjusted depending on an irradiation position. The device includes a radiation source, a target plate having an irradiation hole through which radiation emitted from the radiation source passes and having a first target stopper and a second target stopper formed to protrude on both surfaces, respectively, X-axis shield plates and Y-axis shield plates coupled to both sides of one surface of the target plate and including shield stoppers formed on a contact surface with the target plate and capable of being moved with respect to the target plate. The X-axis shield plate are coupled laterally with shield stoppers capable of moving laterally and the Y-axis plate are coupled longitudinally with shield stoppers capable of moving longitudinally. The shield stoppers can be moved between two first target stoppers or two second target stoppers adjacent to each other.

Abstract: This application relates to an identification card authentication system and methods for authenticating the identification card. The identification card authentication system includes an identification card insert slot to insert the identification card, a roller to detect the insertion of the identification card, a height detector to detect the height of the identification card, a full mark detector to detect a security mark printed on a surface of the identification card, an embossed mark detector to detect an embossed mark printed on the identification card, and a controller (e.g., included in a computing device) to store embedded security features associated with the identification card and authenticate the detected heigh, full mark, and embossed mark of the identification card by comparing them with the respective security feature from the embedded security features.

Abstract: Provided is an etchant composition for a silicon layer including: a fluoride-based compound; a nitrate-based compound; an acid mixture including a phosphoric acid-based inorganic acid and an organic acid; and a nitrosyl compound and capable of selectively etching the silicon layer with respect to a silicon oxide layer.

Abstract: A vehicle information display device according to the present invention comprises a display section provided on at least one side of the front and rear of a vehicle; a sensor section provided on at least one side of the front and rear of the vehicle to measure at least one of the distances and speeds from nearby vehicles or obstacles towards the front or rear of the vehicle; and a control section connected to the display section and the sensor section to control display information displayed on the display section based on measurement information of the sensor section.

Abstract: A cam ring and plate module for vehicle vacuum pumps in which, when an oxide layer formed through steam treatment comes into contact with a carbon or graphite material, a uniform carbon layer is stacked on the oxide layer so as to improve corrosion resistance, wear resistance, hardness and seal resistance.

Abstract: The present invention relates to a urine test device for toilet, including a housing which is installed inside the toilet and can test urine by staining a urine test strip with urine, wherein said housing receives the urine test strip and moves the urine test strip to the urine collection area through at least one or more motors and rollers, and transmit the measurement results to the user terminal after measuring the color change of the urine test strip stained with urine through at least one or more sensors.

Abstract: A cam ring and plate module for vehicle vacuum pumps in which, when an oxide layer formed through steam treatment comes into contact with a carbon or graphite material, a uniform carbon layer is stacked on the oxide layer so as to improve corrosion resistance, wear resistance, hardness and seal resistance.

Abstract: A cam ring and plate module for vehicle vacuum pumps in which, when an oxide layer formed through steam treatment comes into contact with a carbon or graphite material, a uniform carbon layer is stacked on the oxide layer so as to improve corrosion resistance, wear resistance, hardness and seal resistance.

Abstract: The present invention relates to a urine test cartridge. The urine test cartridge comprising a urine test strip having at least one sector connected to it that discolors upon contact with urine, a protective cover removably attached thereto, and a reel on which the urine test string is wound in a circular shape.

Abstract: A prealloy powder for powder metallurgy, a sintered part using the same, and a manufacturing method thereof, which is configured to prevent deterioration of core hardness along with surface hardening while maintaining excellent tensile strength by adjusting an alloy composition so that a bainite phase is formed. The sintered part, which is manufactured by powder metallurgy, includes 1.05 to 1.55 wt % of Cr, 0.3 to 0.5 wt % of Mo, 0.5 to 0.7 wt % of C, and a remaining of Fe and other unavoidable impurities.

Abstract: Disclosed are an outer ring for an oil pump having an increased number and size of open pores in a surface of a molded article and a method for manufacturing the outer ring.

Abstract: Provided is an etchant composition for a semiconductor substrate which may selectively etch a high-concentration doped layer of an extrinsic semiconductor, and according to the present disclosure, an etchant composition for a semiconductor substrate which, in etching an extrinsic semiconductor substrate including doped layers having different doping concentrations, may etch the high-concentration doped layer at a high selection ratio, and suppress bubble formation during an etching process to allow uniform and stable etching, an etching method using the same, and a manufacturing method of a semiconductor substrate may be provided.

Abstract: Provided is a radiation irradiation device and method in which radiation intensity can be adjusted depending on an irradiation position. The device includes a radiation source, a target plate having an irradiation hole through which radiation emitted from the radiation source passes and having a first target stopper and a second target stopper formed to protrude on both surfaces, respectively, X-axis shield plates and Y-axis shield plates coupled to both sides of one surface of the target plate and including shield stoppers formed on a contact surface with the target plate and capable of being moved with respect to the target plate. The X-axis shield plate are coupled laterally with shield stoppers capable of moving laterally and the Y-axis plate are coupled longitudinally with shield stoppers capable of moving longitudinally. The shield stoppers can be moved between two first target stoppers or two second target stoppers adjacent to each other.

Abstract: The present invention relates to a conversion device for converting a treatment beam for treating a lesion of a subject, comprising: a collimator unit to which the treatment beam is incident and which has a plurality of slits; and a scattering unit that scatters the treatment beam that has passed through the collimator unit.

Abstract: Proposed is a golf glove for swing correction, which corrects the swing posture of a golfer so as to prevent scooping and thus enables the golfer to make a stable shot. The golf glove is worn by a golfer and includes a finger portion into which fingers are inserted, a dorsal portion covering the dorsal side of a hand, a cut portion formed by being cut from a middle portion of the dorsal portion to a lower end portion thereof, and a binding band coupled to one side of the cut portion, wherein the binding band is formed in a rectangular shape having a width larger than the width of a plastic card so that the plastic card can be inserted into the binding band.

Abstract: Provided is an etchant composition for a silicon layer including: a fluoride-based compound; a nitrate-based compound; an acid mixture including a phosphoric acid-based inorganic acid and an organic acid; and a nitrosyl compound and capable of selectively etching the silicon layer with respect to a silicon oxide layer.

Abstract: The present invention relates to a composition for selectively etching silicon on a surface on which a silicon oxide film (SiO2) and silicon (Si) are exposed. According to the present invention, it is possible to improve etch selectivity of silicon on the semiconductor surface.

Abstract: A sintered material for aluminum die casting can prevent the strength from being lowered even after steam treatment. The sintered material for aluminum die casting is a sintered material used as an insert at the time of aluminum die casting, and contains Cr: 0.71 to 0.97 wt %, Mo: 0.10 to 0.20 wt %, and C: 0.64 to 0.87 wt %, with the remainder being Fe and other unavoidable impurities.

Abstract: Disclosed are an outer ring for an oil pump having an increased number and size of open pores in a surface of a molded article and a method for manufacturing the outer ring.