Abstract: An eco-friendly quarantine composition has a function of killing phospholipid enveloped viruses, The eco-friendly quarantine composition includes: 10 to 40 wt. % of polyoxyethylene lauryl ether, 0.01 to 10 wt. % of polyoxyethylene 2-ethylhexyl ether, 0.01 to 10 wt. % of polyoxyethylene polyoxypropylene alkyl ether, and a balance of solvent, based on the total 100 wt. % of the composition. The eco-friendly quarantine composition may have 100% of SARS-CoV-2 virus removal rate in 1 minute and an effect of killing 100% of highly pathogenic avian influenza virus in 1 to 10 minutes. The composition has low cytotoxicity such that IC50 value (%) for human epithelial keratinocyte cells (HaCaT), human bronchial epithelial cells (BEAS-2B), and human monocyte cells (THP-1) is in a range of 0.003 to 0.0045, and effects of having antibacterial activity against non-pathogenic strains, and pathogenic strains.

Abstract: A resin composition includes a polyimide, an ultraviolet (UV) absorber represented by the following Chemical Formula 1 and a remaining N-methyl-2-pyrrolidone, and wherein, in Chemical Formula 1, R1 and R2 are each selected from a hydrogen group, a halogen group, an aliphatic substituent, and an aromatic group.

Abstract: Provided are a copolymer-titanium composite which is crosslinked without a crosslinking agent and an initiator and a copolymer-titanium composite composition including the composite. An organic-inorganic hybrid film produced by including the composition may have a significant refractive index without a large increase in a thickness change rate and may solve a problem of a decrease in optical properties by low dispersibility of a conventional organic-inorganic film by a chemically bonded oxygen-titanium network structure, and an organic film having an excellent refractive index may be provided only with the copolymer.

Abstract: A resin composition includes a polyimide, an ultraviolet (UV) absorber represented by the following Chemical Formula 1 and a remaining N-methyl-2-pyrrolidone, and wherein, in Chemical Formula 1, R1 and R2 are each selected from a hydrogen group, a halogen group, an aliphatic substituent, and an aromatic group.

Abstract: A display device includes a substrate, a display element layer disposed on the substrate, and a protective layer disposed on the display element layer.

Abstract: A yaw control-by-rudder type tidal stream power generation apparatus includes: a nacelle used in a tidal stream power generator that converts flowing energy of a tidal stream to generate electric power, and located in the tidal stream to be rotatable about a first rotating shaft; a rotor provided at one side of the nacelle with reference to the first rotating shaft, and configured to be rotated by the flowing energy of the tidal stream; a rudder unit provided at the other side of the nacelle with reference to the first rotating shaft, and including a rudder fixed to the nacelle and a variable rudder rotatably connected to the nacelle; and a control unit configured to control the rotation of the variable rudder. When the flow direction of the tidal stream is changed, the rotation of the variable rudder is controlled by the control unit.

Abstract: A yaw control-by-rudder type tidal stream power generation apparatus includes: a nacelle used in a tidal stream power generator that converts flowing energy of a tidal stream to generate electric power, and located in the tidal stream to be rotatable about a first rotating shaft; a rotor provided at one side of the nacelle with reference to the first rotating shaft, and configured to be rotated by the flowing energy of the tidal stream; a rudder unit provided at the other side of the nacelle with reference to the first rotating shaft, and including a rudder fixed to the nacelle and a variable rudder rotatably connected to the nacelle; and a control unit configured to control the rotation of the variable rudder. When the flow direction of the tidal stream is changed, the rotation of the variable rudder is controlled by the control unit.