Abstract: Disclosed herein is a method of treating a composite piston pin, including: preparing the piston pin of which at least surface layer includes a composite material including a reinforcing fiber and a resin; improving roughness by processing the surface layer of the piston pin; and forming a coating layer on the surface layer processed to reduce a friction coefficient of the piston pin.

Abstract: Provided are a polyamic acid resin, a polyamideimide film, and a method for preparing the same. More specifically, provided are a polyamic acid resin derived from a combination of specific components, a polyamideimide film capable of implementing high modulus and excellent optical properties while implementing excellent mechanical properties, heat properties, and electrical properties, and a method for preparing the same.

Abstract: Provided are a polyamic acid resin, a polyamideimide film, and a method for preparing the same. More specifically, provided are a polyamic acid resin derived from a combination of specific components, and a polyamideimide film capable of implementing high modulus and excellent optical properties.

Abstract: Provided are a polyamic acid composition, a polyamideimide film thereof, and a method for preparing the polyamideimide film. More specifically, provided are a polyamideimide film capable of implementing excellent optical properties in addition to inherent physical properties of polyimide by using a polyamic acid composition including a combination of specific components, and a method for preparing the polyamideimide film.

Abstract: Provided are a polyamic acid resin derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride, and a polyamideimide film including polyamideimide derived from an aromatic diamine, an aromatic dianhydride, a cycloaliphatic dianhydride and an aromatic diacid dichloride.

Abstract: A apparatus for laminating an object with a fiber tow, may include a fiber supply device provided with a plurality of first creels on which first fiber tows are wound and a plurality of second creels on which second fiber tows are wound; an impregnation device provided at a lower side of the fiber supply device, and impregnating the first fiber tows supplied from the first creels and the second fiber tows supplied from the second creels with a resin; and a lamination device provided at a lower side of the impregnation device, and laminating an object with the first and second fiber tows that are impregnated with the resin in accordance with a rolling motion of a laminating roller relative to the surface of the object.

Abstract: A chemical decontamination reagent containing a reducing agent, a reductive metal ion, and an inorganic acid is provided to remove a radioactive oxide layer on a metal surface. The reagent can dissolve the radioactive oxide layer on the metal surface effectively at a relatively low temperature and enables a simple process of contacting the reagent to the radioactive oxide, thus economically effective in terms of cost and time required for the process. Since the decontamination does not use a conventional organic chelating agent such as oxalic acid, but the reducing agent as a main substance, the residuals of the reducing agent remained after decontamination can be decomposed and removed with an oxidizing agent. Due to the easy decomposition with the chemical decontamination reagent, secondary wastes can be minimized and the radionuclides remained in the decontamination reagent solution can be removed effectively.

Abstract: The present invention provides a method for preparing a polymer film, comprising the steps of: forming a precursor film by drying a polymer precursor; and forming a polymer film by curing the precursor film, wherein the curing of the precursor film is carried out on a substrate film.

Abstract: The present invention provides a method for manufacturing a polymer film, the method comprising the steps of: drying a polymer precursor to form a precursor film; and curing the precursor film to form a polymer film, wherein the drying is performed such that the content of a solvent remaining in the precursor film after the drying is 30% or less.

Abstract: Provided is a method for isolating and proliferating autologous cancer antigen-specific CD8+ T cells, and more particularly, a method for selecting an epitope recognized by CD8+ T cells from autologous cancer antigens present in blood of individual cancer patients; and isolating autologous cancer antigen-specific CD8+ T cells by using a peptide of the selected epitope, and a method of massively proliferating CD8+ T cells by using the method. According to the present invention, it is possible to isolate autologous cancer antigen-specific CD8+ T cells by using the peptide of the CD8 T cell epitope of the autologous cancer antigen present in blood of individual cancer patients instead of a heterologous antigen. Therefore, by using T cells recognizing the autologous cancer antigen, it is possible to effectively select and eliminate cancer cells derived from the cancer patient's own cells. Thus, T cells can be applied to treatment and alleviation of cancer diseases without side effects.

Abstract: Disclosed is a resin impregnation apparatus. The apparatus includes: a resin supply unit for supplying a resin having a predetermined viscosity downwards; a film formation unit provided at a lower side of the resin supply unit and configured to form the resin supplied from the resin supply unit into a film shape while the resin passes between a pair of rollers spaced apart from each other. The apparatus further includes a fiber supply unit for unwinding a reinforcing fiber and bringing the reinforcing fiber into contact with the film-shaped resin so that the resin is impregnated into the reinforcing fiber to form a resin-impregnated reinforcing fiber.

Abstract: Provided is a steam generator (1000) which comprises a water tank (200); a heater unit (300) connected with the water tank so as to heat the water; and a spraying unit (500) connected with the heater unit (300), wherein raw water heated by the heater unit (300) is in a high-temperature and high-pressure state in the heater unit (300), and the high-temperature and high-pressure raw water is converted into steam by decompression when sprayed to the outside by the spraying unit (500). The steam generator, according to the present invention, can generate steam without a separate electric power supply device, can generate steam that is harmless to the human body without generating ozone, and can generates an abundant amount of atomized steam through a process for directly heating the supplied raw water by using a heating member disposed in a housing and then secondarily heating the steam of which a phase is primarily changed so as to atomize steam particles, thereby suppressing the ejection of condensed water.

Abstract: The present invention provides a decontamination method including the steps of decontaminating an object containing radioactive contaminated metals or alloys with a chemical decontamination agent comprising sulfuric acid (H2SO4) and forming a Ba or Sr precipitate by adding Ba or Sr cation and hydroxyl ion or halogen anion salts to the decontamination waste water. The present invention also provides a kit for decontamination including a chemical decontamination agent including sulfuric acid (H2SO4) to decontaminate an object containing radioactive contaminated metals or alloys and Ba or Sr cation and hydroxyl ion or halogen anion salts to be added to the decontamination waste water to form a precipitate.

Abstract: A apparatus for laminating an object with a fiber tow, may include a fiber supply device provided with a plurality of first creels on which first fiber tows are wound and a plurality of second creels on which second fiber tows are wound; an impregnation device provided at a lower side of the fiber supply device, and impregnating the first fiber tows supplied from the first creels and the second fiber tows supplied from the second creels with a resin; and a lamination device provided at a lower side of the impregnation device, and laminating an object with the first and second fiber tows that are impregnated with the resin in accordance with a rolling motion of a laminating roller relative to the surface of the object.

Abstract: Disclosed are a multilayer prepreg structure and a method of manufacturing the same. The multilayer prepreg structure includes a prepreg layer formed by impregnating a carbon fiber fabric with a first resin, and a fixed layer formed of a second resin having a higher curing rate than the first resin and provided on one surface of the prepreg layer.

Abstract: A hybrid propeller shaft may include a CFRP tube layer in which high-strength CFRP or high-elasticity CFRP, the high-strength CFRP, and the high-elasticity CFRP are laminated to form at least two layers while having different wrapping angles by a prepreg wrapping process method; and a protective layer which is formed on an outermost layer of the CFRP tube layer to protect the CFRP tube layer.

Abstract: Provided is a method for isolating and proliferating autologous cancer antigen-specific CD8+T cells, and more particularly, a method for selecting an epitope recognized by CD8+ T cells from autologous cancer antigens present in blood of individual cancer patients; and isolating autologous cancer antigen-specific CD8+ T cells by using a peptide of the selected epitope, and a method of massively proliferating CD8+ T cells by using the method. According to the present invention, it is possible to isolate autologous cancer antigen-specific CD8+ T cells by using the peptide of the CD8 T cell epitope of the autologous cancer antigen present in blood of individual cancer patients instead of a heterologous antigen. Therefore, by using T cells recognizing the autologous cancer antigen, it is possible to effectively select and eliminate cancer cells derived from the cancer patient's own cells. Thus, T cells can be applied to treatment and alleviation of cancer diseases without side effects.

Abstract: Provided are a polyamic acid resin, a polyamideimide film, and a method for preparing the same. More specifically, provided are a polyamic acid resin derived from a combination of specific components, a polyamideimide film capable of implementing high modulus and excellent optical properties while implementing excellent mechanical properties, heat properties, and electrical properties, and a method for preparing the same.

Abstract: Provided are a polyamic acid resin, a polyamideimide film, and a method for preparing the same. More specifically, provided are a polyamic acid resin derived from a combination of specific components, and a polyamideimide film capable of implementing high modulus and excellent optical properties.

Abstract: Disclosed herein is a method of treating a composite piston pin, including: preparing the piston pin of which at least surface layer includes a composite material including a reinforcing fiber and a resin; improving roughness by processing the surface layer of the piston pin; and forming a coating layer on the surface layer processed to reduce a friction coefficient of the piston pin.