Abstract: A user biometric authentication system according to an embodiment includes: a user information storage unit that acquires and stores user information and generates facial expression data information; and an authentication unit that, when acquiring authentication request information, acquires authentication facial expression information which is the facial expression data information corresponding to the authentication request information, outputs a preset number of arbitrary face imaging information including the authentication facial expression information as authentication candidate information, and performs user authentication using the authentication candidate information.

Abstract: The present invention relates to a vessel holder fixed with a conical screw for use in a biological microscope or the like, and more particularly, to an improved vessel holder fixed with a conical screw to be accurately fixed to a reference side without a change in position with respect to impact vibration while allowing the vessel holders to be closely attached to an upper surface of the stage with only one screw, thereby improving usability, cell observation efficiency and accuracy.

Abstract: The present invention relates to a stage assembly with a vent structure for preventing condensation by making a flow path in the stage so that air around the vessel on the stage passes through the inside of the equipment for making the temperature of a stage-direction surface of a vessel similar to the ambient temperature of the vessel to prevent condensation. In addition, the present invention relates to the stage assembly with the vent structure to reduce cost, prevent stenosis due to exposure of the drive, and improve antifouling function due to blocking of foreign substances, by simplifying the structure and reducing parts so that all drive parts can be mounted in a space smaller than the diameter of a knob for driving the stage, and applying a scotch yoke mechanism so that a rotary shaft connected to the knob per se is a drive to make a linear motion.

Abstract: The present invention relates to a Scotch yoke type stage assembly in which the structure is simplified and the number of parts is reduced so that all the driving parts can be mounted in a space smaller than the diameter of the knob for driving the stage, and a Scotch yoke mechanism is applied so that a rotating shaft connected to the knob per se becomes a driving device in order for the rotating shaft connected to the knob to create a linear motion, thereby reducing costs, preventing stenosis due to exposure of the driving device, and improving anti-contamination function by blocking the inflow of foreign substances.

Abstract: Provided are a landmark-based ensemble network creation method for facial expression classification, and a facial expression classification method using a created ensemble network. More particularly, provided are a landmark-based ensemble network creation method and a facial expression classification method using a created ensemble network, wherein the ensemble network is created through an ensemble method on the basis of facial images and distance information between landmarks for each facial area extracted from the facial images, and facial expression classification is performed using the created ensemble network.

Abstract: Provided are an artificial intelligence (AI) system that simulates functions of a human brain such as recognition and judgment by utilizing a machine learning algorithm such as deep learning, etc. and an application of the AI system. A computing apparatus is disclosed. A computing apparatus comprises a memory storing instructions and a processor executing the instructions in the memory to obtain a keyword corresponding to a broadcast channel from a speech signal included in a broadcast signal received through the broadcast channel, determine a relation between genre information of the broadcast channel obtained from metadata about the broadcast channel and the obtained keyword and determine a genre of the broadcast channel based on the genre information obtained from the metadata or by analyzing an image signal included in the broadcast signal, according to the determined relation.

Abstract: The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.

Abstract: The present invention relates to a polypropylene having excellent stiffness and achieving energy reduction during foaming.

Abstract: The present invention provides a method for preparing an olefin polymer which can exhibit excellent isotacticity in a high yield and thus is suitable for use in reinforcing a long fiber, and a long fiber comprising an olefin polymer produced according to the above preparation method. In the preparation method, there can be provided an olefin polymer having excellent isotacticity in a high yield can be obtained by using a supported catalyst in which a transition metal compound having a specific structure is supported on a carrier together with two kinds of cocatalysts. In particular, the supported catalyst can exhibit high activity, excellent process stability and high hydrogen reactivity, thereby providing an olefin polymer having a high flow rate with a regular and excellent morphology. Such olefin polymer exhibits high processability while having excellent mechanical properties such as a tensile strength and a flexural strength, and thus are very useful as long fiber reinforced resins.

Abstract: The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 ?g/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.

Abstract: A thermal insulator module includes: a thermal insulating member; and a frame part, all or a portion of the frame part being embedded in the thermal insulating member, having a plurality of fastening parts, each having one side coupled to a wall body and the other side to which an interior material or an exterior material is coupled, the other side being at a different position from the one side coupled to the wall body.

Abstract: The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.

Abstract: The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.

Abstract: The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 ?g/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.

Abstract: The present invention provides a method for preparing an olefin polymer which can exhibit excellent isotacticity in a high yield and thus is suitable for use in reinforcing a long fiber, and a long fiber comprising an olefin polymer produced according to the above preparation method.

Abstract: The present invention relates to a polypropylene having excellent stiffness and achieving energy reduction during foaming.

Abstract: A thermal insulator module includes: a thermal insulating member; and a frame part, all or a portion of the frame part being embedded in the thermal insulating member, having a plurality of fastening parts, each having one side coupled to a wall body and the other side to which an interior material or an exterior material is coupled, the other side being at a different position from the one side coupled to the wall body.

Abstract: The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.

Abstract: The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.

Abstract: The present description relates to an olefin block copolymer having excellences in elasticity and heat resistance and its preparation method. The olefin block copolymer includes a plurality of blocks or segments, each of which includes an ethylene or propylene repeating unit and an ?-olefin repeating unit at different weight fractions. The olefin block copolymer has a density of 0.85 to 0.92 g/cm3, and density X (g/cm3) and TMA (Thermal Mechanical Analysis) value Y (° C.) satisfy a defined relationship.