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: Proposed is a hanger capable of being opened forward/rearward and, more particularly, to a ventilating hanger having a hanging part on which clothes can be hung and which can be opened toward front/back of clothes, so that the hanging part is in a narrow state to allow the clothes to ba easily hung thereon when the clothes are hung, and is opened to be wide forward/rearward in a state in which the clothes are hung thereon, so as to widen the space between the front and back of the clothes, and thus smooth ventilation is facilitated.

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.

Abstract: A waste liquid treatment facility according to an exemplary embodiment of the present invention includes: a filter connected to a system of a nuclear power plant; a demineralizer connected to the filter; a reactor connected to the demineralizer and including a first lamp and a second lamp of different wavelengths connected in succession; a buffer tank connected to the filter, demineralizer, and reactor; and a circulation pipe portion connecting the filter, demineralizer, reactor, and buffer tank to form a circulation structure of a solution together with the system, wherein the solution sequentially passes through the first lamp and the second lamp.

Abstract: Provided is a UV reaction apparatus for treating waste liquid caused by system decontamination in a nuclear power plant. The UV reaction apparatus comprises a UV irradiation unit for irradiating UV light as a bar-shaped body; and a transit unit accommodating the UV irradiation unit therein, and for passing organic waste liquid to be irradiated with the UV light, wherein the transit unit comprises, an input unit, into which the organic waste liquid is input a discharge unit, through which the organic waste liquid is discharged, and an intermediate unit located between the input unit and the discharge unit, and in which the UV irradiation unit is located.

Abstract: Provided is a device for monitoring degradation of wastewater from nuclear power plant decontamination. The device for monitoring degradation of wastewater from nuclear power plant decontamination comprises a UV reactor connected to a first flow path and for UV-treating introduced wastewater; a wastewater degradation flow path for supplying the wastewater discharged from the UV reactor to the first flow path; a wastewater degradation detecting unit for analyzing components of the wastewater supplied from the wastewater degradation flow path and detecting whether a set condition is satisfied; and a purification flow path for purifying and supplying the wastewater supplied from the UV reactor to the first flow path when the set condition is satisfied.

Abstract: The leakage detector according to the present invention comprises a housing; wherein the housing further comprises a flow passage section penetrating the housing; a measurement section connected to one side of the flow passage section to measure the flow of the fluid passing through the flow passage section to detect any leakage of the fluid; a control section connected to the measurement section to process data obtained by the measurement section; a battery section provided to supply power to the measurement section and the control section; and a self-power generation section connected to the flow passage section to create its own energy to charge the battery section using the flow of the fluid.