Abstract: The present disclosure relates to a vehicle door coupling device, and more specifically, to a vehicle door coupling device for mechanically coupling together a first member having a first hole and a second member having a second hole at a position corresponding to the first hole.

Abstract: A polyoxymethylene resin composition including a polyoxymethylene homopolymer, a polyhydric alcohol, and a calcium phosphate compound, which has excellent thermal stability and a low weight-reduction rate and thus can be favorably used in various industrial fields and used as an engineering plastic in fields of machine parts and the like.

Abstract: The present invention relates to a polyoxymethylene resin composition, which has excellent thermal stability and a low weight-reduction rate and thus can be favorably used in various industrial fields and used as an engineering plastic in fields of machine parts and the like.

Abstract: A transdermal delivery system of drug and a method of preparing the same are provided. More specifically, the invention can be a transdermal delivery system applied for various protein drugs such as vaccines and chemical drugs, because the drug delivery system has a biocompatibility, biodegradation property, transdermal delivery property, the safety of human body, maximum activity of protein drugs, good bio-conjugation efficiency and a long-term efficacy, a method of preparing the same and its use.

Abstract: The present application discloses a substrate that includes a molecular layer of regularly spaced size-controlled macromolecules comprising a polymer comprising branched and linear regions in which a plurality of termini on the branched region are bound to the substrate, and a terminus of the linear region is functionalized.

Abstract: A transdermal delivery system of drug and a method of preparing the same are provided. More specifically, the invention can be a transdermal delivery system applied for various protein drugs such as vaccines and chemical drugs, because the drug delivery system has a biocompatibility, biodegradation property, transdermal delivery property, the safety of human body, maximum activity of protein drugs, good bio-conjugation efficiency and a long-term efficacy, a method of preparing the same and its use.

Abstract: Disclosed is a canvas cleaning apparatus for use in a paper mill. The apparatus includes a main injection unit for injecting cleaning water having an injection head moved from side to side, an auxiliary injection unit for injecting the cleaning water enclosing the injection head of the main injection unit and having a permanent magnetic fixed to one end thereof, an auxiliary suction unit for sucking cleaning water and wastes installed at a position opposed to the main injection unit and having a permanent magnet fixed to one end thereof, and a main suction unit for sucking cleaning water and wastes fixed to the auxiliary suction unit.