Abstract: A sterilization apparatus includes a housing; a sterilization unit for irradiating, with sterilization light, at least one region to be sterilized; and a driving unit for moving the sterilization unit into and out of the housing via an opening of the housing and rotating the sterilization unit about a rotation axis.

Abstract: Provided are a high-strength steel sheet and a method for manufacturing same, the high-strength steel sheet including: an alloy system having C, Si, Mn, Cr, Al, Nb, Ti, B, P, S, N, and the remainder of Fe and other inevitable impurities. The contents of C, Si, and Al satisfy equation (1) below. The microstructure includes, by an area fraction, greater than 50% to 70% or less of tempered martensite, and the remainder of residual austenite, fresh martensite, ferrite, and bainite, in which a cementite phase as a second phase is precipitated and distributed in an area fraction of 1-3% between bainite laths, or at a lath on the tempered martensite or grain boundaries. [Equation (1)] [C]+([Si]+[Al])/5?0.35 wt. % (wherein [C], [Si], and [Al] denote wt % of C, Si, and Al, respectively.

Abstract: A clad steel plate, having excellent strength and formability, may include a base material; and a cladding material provided on both side surfaces of the base material, wherein the base material is austenitic high-manganese steel comprising, by weight, 0.3% to 1.4% of C, 12% to 25% of Mn, and a remainder of Fe and inevitable impurities, the cladding material is a martensitic carbon steel comprising, by weight, 0.09% to 0.4% of C, 0.3% to 4.5% of Mn, and a remainder of Fe and inevitable impurities.

Abstract: An anti-glare glass of the present disclosure has excellent anti-glare properties and visibility by forming glass in which polysilazane-derived surface unevenness are applied to a glass surface without mixing a heterogeneous element, and has remarkably improved wear resistance and durability since the polysilazane is changed for glass on the glass surface by thermal treatment.

Abstract: Provided is a method of continuously annealing a strip. The method includes: firstly heating a strip in a first heating zone; firstly cooling the firstly heated strip or maintaining the firstly heated strip at a constant temperature in a first cooling or constant temperature maintaining zone; secondarily heating and soaking the strip, firstly cooled or remaining at the constant temperature, in a second heating and soaking zone; and secondarily cooling the strip, secondarily heated and soaked, in a second cooling zone.

Abstract: Provided is a method of continuously annealing a strip. The method includes: firstly heating a strip in a first heating zone; firstly cooling the firstly heated strip or maintaining the firstly heated strip at a constant temperature in a first cooling or constant temperature maintaining zone; secondarily heating and soaking the strip, firstly cooled or remaining at the constant temperature, in a second heating and soaking zone; and secondarily cooling the strip, secondarily heated and soaked, in a second cooling zone.

Abstract: The present invention relates to an apparatus for continuous annealing of a strip, capable of manufacturing a high-strength and highly ductile cold-rolled steel sheet having both excellent strength and ductility, and to a method for continuous annealing of a strip. The continuous annealing apparatus, according to the present invention, is capable of continuous annealing by cooling after heating, and then reheating, unlike an existing continuous annealing apparatus which heats only once and then cools or provides an overaging treatment. As a result, the continuous annealing apparatus, according to the present invention, can preliminarily render a homogeneous texture or control the texture as desired, and then perform another reheating heat treatment to stabilize the texture or control the shape thereof to a desired state.

Abstract: A clad steel plate, having excellent strength and formability, may include a base material; and a cladding material provided on both side surfaces of the base material, wherein the base material is austenitic high-manganese steel comprising, by weight, 0.3% to 1.4% of C, 12% to 25% of Mn, and a remainder of Fe and inevitable impurities, the cladding material is a martensitic carbon steel comprising, by weight, 0.09% to 0.4% of C, 0.3% to 4.5% of Mn, and a remainder of Fe and inevitable impurities.

Abstract: An anti-glare glass of the present disclosure has excellent anti-glare properties and visibility by forming glass in which polysilazane-derived surface unevenness are applied to a glass surface without mixing a heterogeneous element, and has remarkably improved wear resistance and durability since the polysilazane is changed for glass on the glass surface by thermal treatment.

Abstract: Provided is a method for producing plated steel sheet by means of an annealing device which includes at least one section and in which the at least one section is filled with a gas constituting a non-reducing atmosphere or a weakly reducing atmosphere to substantially improve the quality of plating onto hot-dipped steel sheet, including the plating properties, alloying properties, anti-pickup properties, plating adhesion properties, anti-flaking properties, anti-cratering properties and anti-ash properties, by using prior-art annealing equipment and heat-treatment cycle without any additional oxidation-reduction heat treatment process or large quantities of high-cost alloying elements.

Abstract: An apparatus for continuous annealing of a strip comprises: a first heating zone configured to firstly heat a strip; a first cooling or constant temperature maintaining zone configured to cool the strip firstly heated in the first heating zone or to maintain the strip at a constant temperature; a second heating and soaking zone configured to secondarily heat and soak the strip cooled or remaining at the constant temperature in the first cooling or constant temperature maintaining zone; and a second cooling zone configured to cool the strip heated and soaked in the second heating and soaking zone.

Abstract: Provided is a method for producing plated steel sheet by means of an annealing device which includes at least one section and in which the at least one section is filled with a gas constituting a non-reducing atmosphere or a weakly reducing atmosphere to substantially improve the quality of plating onto hot-dipped steel sheet, including the plating properties, alloying properties, anti-pickup properties, plating adhesion properties, anti-flaking properties, anti-cratering properties and anti-ash properties, by using prior-art annealing equipment and heat-treatment cycle without any additional oxidation-reduction heat treatment process or large quantities of high-cost alloying elements.

Abstract: Provided is an annealing device which comprises at least one section and in which the at least one section is filled with a gas constituting a non-reducing atmosphere or a weakly reducing atmosphere, as well as a device for producing plated steel sheet comprising the annealing device, and a method for producing plated steel sheet by means of such a device to substantially improve the quality of plating onto hot-dipped steel sheet, including the plating properties, alloying properties, anti-pickup properties, plating adhesion properties, anti-flaking properties, anti-cratering properties and anti-ash properties, by using prior-art annealing equipment and heat-treatment cycle without any additional oxidation-reduction heat treatment process or large quantities of high-cost alloying elements.

Abstract: Disclosed herein is a Nb—Ti composite IF steel in which fine precipitates, such as CuS precipitates, having a size of 0.2 ?m or less are distributed. The distribution of fine precipitates in the Nb—Ti composite IF steel enhances the yield strength and lowers the in-plane anisotropy index. The nanometer-sized precipitates allow the formation of minute crystal grains. As a result, dissolved carbon is present in a larger amount in the crystal grain boundaries than within the crystal grains, which is advantageous in terms of room-temperature non-aging properties and bake handenability.

Abstract: Disclosed herein is a Ti-based IF steel in which fine precipitates, such as CuS precipitates, having a size of 0.2 ?m or less are distributed. The distribution of fine precipitates in the Ti-based IF steel enhances the yield strength and lowers the in-plane anisotropy index. The nanometer-sized precipitates allow the formation of minute crystal grains. As a result, dissolved carbon is present in a larger amount in the crystal grain boundaries than within the crystal grains, which is advantageous in terms of room-temperature non-aging properties and bake hardenability.

Abstract: Disclosed is a rotary type hinge device, which is rotatably coupled to a portable wireless terminal, especially to a body of the folder type terminal. The hinge device includes a first rotation axis for opening and closing operations of the terminal body and folder, and a second rotation axis extending perpendicular to the first rotation axis, thereby causing the folder to rotate about the second rotation axis in its opened state. By providing the hinge device of biaxial rotation type constructed as stated above, limitations in installation positions of a display device and camera lens can be removed, thereby improving the compatibility of the portable wireless terminal with respect to motion picture providing services, video communications and so on, so that it provides diversified mobile communication services. Further, the design and specification of the portable wireless terminal can be easily changed.

Abstract: Disclosed is a rotary type hinge device, which is rotatably coupled to a portable wireless terminal, especially to a body of the folder type terminal. The hinge device includes a first rotation axis for opening and closing operations of the terminal body and folder, and a second rotation axis extending perpendicular to the first rotation axis, thereby causing the folder to rotate about the second rotation axis in its opened state. By providing the hinge device of biaxial rotation type constructed as stated above, limitations in installation positions of a display device and camera lens can be removed, thereby improving the compatibility of the portable wireless terminal with respect to motion picture providing services, video communications and so on, so that it provides diversified mobile communication services. Further, the design and specification of the portable wireless terminal can be easily changed.