Abstract: The present invention relates a vacuum carburizing harmful exhaust gas reduction apparatus and vacuum carburizing harmful exhaust gas reduction method using the same. vacuum carburizing harmful exhaust gas reduction apparatus includes a high-temperature decomposition unit configured to heat exhaust gases discharged from a vacuum pump in the vacuum carburizing process to a temperature ranging from 500 to 1500° C., and a high-temperature catalyst unit comprising a supported catalyst supporting a catalyst including one or more selected from a group including platinum (Pt), palladium (Pd), and alloys thereof and configured to allow the exhaust gases heated in the high-temperature decomposition unit to contact the supported catalyst. According to the present invention, it is possible to significantly reduce harmful substances such as carbon monoxide, nitrogen oxides, benzene, and total hydrocarbons (THC) in the exhaust gases expelled by the vacuum pump during the vacuum carburizing process.

Abstract: A substrate processing method and a substrate processing apparatus for removing material on a substrate are disclosed. In order to remove the material, a processing liquid including a chemical liquid and water is supplied on the substrate so that a liquid layer maintained by surface tension is formed. The material is removed from the substrate by a reaction between the material and the processing liquid. A size distribution of by-product particles formed by the reaction between the material and the processing liquid is measured by a dynamic light scattering method. A supply of the processing liquid is controlled based on the size distribution of the by-product particles.

Abstract: Disclosed is a substrate treatment apparatus including a rotation unit that supports and rotates a substrate, a chemical discharge unit that discharges a chemical solution to the rotation unit, a chemical recovery unit disposed close to the rotation unit and configured to recover the chemical solution scattering from the rotation unit, and a laser irradiation unit that applies a laser beam to the substrate and heats the substrate.

Abstract: The inventive concept provides a mask treatment apparatus. The mask treatment may include a support unit that supports the mask, and a light irradiation unit that irradiate the mask with a light to adjust a critical dimension of a pattern formed in the mask, wherein the light irradiation unit includes a light source that generates the light, and a light modulation element that modulates the light generated by the light source and forms an irradiation pattern.

Abstract: The present disclosure provides a member for magnetic refrigeration with excellent cooling efficiency, including a tape for magnetic refrigeration having a magnetic refrigeration material charged inside a metal sheath, and a bed for an AMR including the same.

Abstract: An axial flow blood pump having a rotor rotatably mounted in a housing. The rotor includes at least two rotor blades having different configurations.

Abstract: An axial flow blood pump having a rotor rotatably mounted in a housing. The rotor includes at least two rotor blades having different configurations.

Abstract: Disclosed is a method for preparing nickel or palladium nanoparticles supported on a carbon support. To a mixture solution wherein a stabilizer is dissolved in 1,2-propanediol, a carbon support is added to prepare a dispersion. Then, a precursor solution wherein a nickel or palladium precursor dissolved in 1,2-propanediol is mixed therewith and stirred. Then, nickel or palladium nanoparticles supported on the carbon support are prepared by reduction. The disclosed method for preparing nickel or palladium nanoparticles supported on a carbon support allows preparation of nanoparticles with narrow particle size distribution and good dispersibility through a simple process and the resulting nickel or palladium nanoparticles may be usefully applied, for example, as electrode materials of fuel cells.

Abstract: Disclosed is a method for preparing nickel or palladium nanoparticles supported on a carbon support. To a mixture solution wherein a stabilizer is dissolved in 1,2-propanediol, a carbon support is added to prepare a dispersion. Then, a precursor solution wherein a nickel or palladium precursor dissolved in 1,2-propanediol is mixed therewith and stirred. Then, nickel or palladium nanoparticles supported on the carbon support are prepared by reduction. The disclosed method for preparing nickel or palladium nanoparticles supported on a carbon support allows preparation of nanoparticles with narrow particle size distribution and good dispersibility through a simple process and the resulting nickel or palladium nanoparticles may be usefully applied, for example, as electrode materials of fuel cells.

Abstract: A shear deformation apparatus comprises: a die having an inlet and an outlet; and a rotatable device installed at a shear zone for supporting a material introduced into the inlet of the die and thus changing a direction of the material to the outlet of the die, of which the surface moves together with the material. According to the apparatus, a frictional resistance between the material and the die is reduced and a generation of a dead zone is prevented, thereby reducing a deformation resistance and having a uniform shear deformation.

Abstract: A continuous shear deformation apparatus comprises: a roller for pushing a metal sheet to be processed into dies; the dies having an inlet for introducing a metal sheet, a shear deformation zone for shear-deforming the sheet, and an exit; and a control unit for controlling a gap of the dies exit depending on the compressive stress generated at the metal sheet while the metal sheet passes through the shear deformation zone of the dies. The compressive stress generated at the metal sheet becomes constant when the metal sheet is shear-deformed, and thereby the thickness of the metal sheet is uniformly controlled in a longitudinal direction.

Abstract: A continuous shear deformation apparatus comprises: a roller for pushing a metal sheet to be processed into dies; the dies having an inlet for introducing a metal sheet, a shear deformation zone for shear-deforming the sheet, and an exit; and a control unit for controlling a gap of the dies exit depending on the compressive stress generated at the metal sheet while the metal sheet passes through the shear deformation zone of the dies. The compressive stress generated at the metal sheet becomes constant when the metal sheet is shear-deformed, and thereby the thickness of the metal sheet is uniformly controlled in a longitudinal direction.

Abstract: The present invention relates to a continuous shear deformation device, in particular, which is capable of mass-producing shear deformed materials by continuously supplying a sharply bent channel type mold with materials, particularly, which have a variety of thickness from thin sheet to thick plate. The continuous shear deformation device in accordance with the present invention includes a sharply bent channel type mold and a rotary guide apparatus installed at the inlet of the mold for guiding materials into the mold by frictional contact with the materials. In addition, the present invention can additionally include a rotary guide for exiting the shear-deformed material.

Abstract: An apparatus for manufacturing sheet metals is disclosed. This apparatus primarily casts a liquid metal into an intermediate sheet through a sheet-casting process, and secondarily strains the intermediate sheet through a continuous shear-straining process, thus forming a desired high quality sheet metal having a high strength, a high formability and a specifically oriented texture without changing the thickness of the intermediate sheet or while slightly changing the thickness. This apparatus thus simplifies the process of manufacturing the sheet steels. The apparatus has a sheet-casting device used for primarily casting a liquid metal into an intermediate sheet, and a continuous shear-straining device used for continuously shear-straining the intermediate sheet from the sheet-casting device to form a desired sheet metal.

Abstract: The present invention relates to a continuous shear deformation device. In order to occur shear deformation at the position at which a material is inserted into a molding path from a rotary guide apparatus for the purpose of solving the problem that the amount of shear deformation of a material is non-uniform and insufficient due to the gap between the curved portion of the molding path and the lower parts of the material, there is provided a continuous shear deformation device, characterized in that a curved portion is constructed by collaboration between the rotary guide apparatus and the molding path. In addition, there are provided additional constructions for effectively performing shear deformation by a small power by reducing the friction at the molding path excepting the curved portion. The present invention thusly constructed can be utilized for continuously and effectively mass-produce sheared materials.

Abstract: The present invention relates to a shear deformation device. To improve the productivity by solving the problem that the amount of shear deformation of a material is not uniform and sufficient due to the gap between the curved portion of the molding path and the lower parts of the material and omitting any additional process for removing irregularity and surface products on the surface of the material, there is provided a shear deformation device capable of scalping, characterized in that a scalping guide path which allows the surface of the material to be separated from the other portions of the material as the material is scalped at a predetermined thickness when passing through the curved portion during shear deformation is formed in the curved portion in communication with the molding path. In addition, there are provided additional constructions for effectively performing shear deformation by a small power by reducing the friction at the molding path excepting the curved portion.

Abstract: A heat engine is provided with twin crankshafts and coil shaped power elements mounted between each of two crankshafts. Each power element moves upward and downward, parallel with the surface of a tank of hot water, in which the engine is partially submersed, so that every part of the power element is allowed to remain submersed in the hot water for the same time interval so as to achieve maximum rotating power.