Abstract: An optical apparatus and a driving method therefor according to an embodiment are disclosed. The optical apparatus comprises: a lens assembly including a liquid lens; and a control circuit for generating a driving signal for driving the liquid lens, wherein the driving signal includes a first section and a second section having driving signals with different waveform shapes.

Abstract: A microneedle structure is disclosed. The microneedle structure according to one aspect of the present invention comprises microneedles to be inserted into the skin, and may comprise: microneedles comprising a shape-memory polymer so that a first shape can be changed to a second shape by a predetermined external stimulus according to the characteristics of the shape-memory polymer, and a support member having the microneedles formed on one surface thereof.

Abstract: A sensor for measuring a temperature change amount. The sensor includes a first composite material layer including a polymer having a volume changing according to a temperature change amount; an electrode layer provided on one side of the first composite material layer and capable of representing the temperature change amount as a resistance change amount; and a second composite material layer at least partially provided on the upper side of the first composite material layer and containing polydimethylsiloxane (PDMS) and at least one of carbon nanotubes (CNT), boron nitride nanotubes (BNNT), and graphene or containing a thermoplastic polyurethane (TPU) so that the temperature change occurring on one side thereof is transferred to the other side thereof.

Abstract: The present invention relates to a shape-memory polymer having a 6-arm structure and use thereof. The shape-memory polymer according to the present invention exhibits shape-memory properties by cross-linking, can control temperature for shape restoration through monomer control and has biocompatibility. As a material, it can be developed into a medical material such as a support for the outer wall of blood vessels.

Abstract: Disclosed is a storage container, in which a valve coupled to an opening portion of a tube is not cut in advance, but the valve is cut when a liquid injection nozzle is inserted into the tube, such that a gap between the liquid injection nozzle and the valve may be perfectly blocked, thereby preventing a leak of a liquid. A storage container according to an embodiment of the present invention includes a tube made of an expandable or contractible elastic material, and a valve configured to be coupled to an upper end of the tube before a liquid is injected into the tube, in which the valve includes a ring-shaped support portion configured to be seated and supported at the upper end of the tube, and an elastic membrane extending from an end of the support portion and configured to close an opening portion of the tube.

Abstract: The present disclosure relates to a smart mirror, a controlling method thereof, and a system for purchasing a cosmetic. According to an aspect of the present disclosure, a smart mirror comprising: a terminal unit including a sensor capable of recognizing a user; a lighting unit including an LED capable of irradiating light to the user; and a control module capable of controlling at least one of the amount of light and the color temperature of the light irradiated from the lighting unit so that the skin of the user represents the light amount and the color temperature in a preset range by the light irradiated from the lighting unit may be provided.

Abstract: The present invention relates to a device capable of wrapping the outer wall of a blood vessel, and a method for manufacturing the device. If the device for wrapping the outer wall of a blood vessel of the present invention is used, the outer wall of a blood vessel is wrapped, and, thereby, vortex generation can be significantly decreased by controlling abnormal expansion of the blood vessel which can occur due to the difference in the characteristics of blood vessels in a vein-artery graft model. The present invention saves a blood vessel from a low-oxygen state by promoting generation of new blood vessels on the outer wall of the blood vessel via a regenerative inflammatory response caused by the material of the device, and provides synergy effects such as prevention of vascular stenosis and reinforcement of an outer muscular layer by guiding venous muscular cells to the outside.

Abstract: A mother substrate includes: a support substrate; a first organic layer on one surface of the support substrate; a first inorganic layer on the first organic layer and covering an edge of the first organic layer; a second organic layer on the first inorganic layer; a second inorganic layer on the second organic layer and covering an edge of the second organic layer; a plurality of display cells on the second inorganic layer; and an encapsulation cover layer on a first inorganic encapsulation area in which the first inorganic layer and the second inorganic layer are in contact with each other.

Abstract: Disclosed is a storage container, in which a valve coupled to an opening portion of a tube is not cut in advance, but the valve is cut when a liquid injection nozzle is inserted into the tube, such that a gap between the liquid injection nozzle and the valve may be perfectly blocked, thereby preventing a leak of a liquid. A storage container according to an embodiment of the present invention includes a tube made of an expandable or contractible elastic material, and a valve configured to be coupled to an upper end of the tube before a liquid is injected into the tube, in which the valve includes a ring-shaped support portion configured to be seated and supported at the upper end of the tube, and an elastic membrane extending from an end of the support portion and configured to close an opening portion of the tube.

Abstract: A sensor for measuring a temperature change amount. The sensor includes a first composite material layer including a polymer having a volume changing according to a temperature change amount; an electrode layer provided on one side of the first composite material layer and capable of representing the temperature change amount as a resistance change amount; and a second composite material layer at least partially provided on the upper side of the first composite material layer and containing polydimethylsiloxane (PDMS) and at least one of carbon nanotubes (CNT), boron nitride nanotubes (BNNT), and graphene or containing a thermoplastic polyurethane (TPU) so that the temperature change occurring on one side thereof is transferred to the other side thereof.

Abstract: The present invention relates to a shape memory polymer that can be restored to an original shape from a deformed shape by means of body temperature in the body. When using the shape memory polymer of the present invention and a device for wrapping the outer wall of blood vessels prepared thereby, it is possible to effectively prevent abnormal blood vessel dilatation, and prevent stenosis by effectively inhibiting neointimal formation.

Abstract: Provided is an electric motor-integrated rocket engine pump. The electric motor-integrated rocket engine pump comprises: a housing; a rotating body provided in one direction inside the housing; an electric motor provided inside the housing, and integrally shaft-coupled to the rotating body; and a plurality of fluid bearings are mounted on front and rear rotating bodies of the electric motor to support rotation of the rotating body.

Abstract: A device for producing a skin care pack using a hydrogel and to a control method thereof are disclosed. The device includes: a housing which is provided with a door for selectively opening and closing a work space for forming a skin care pack, and maintains a forming temperature required for producing the skin care pack; a platform having a base supported on a floor plate of the work space of the housing; a former including one or more nozzle modules which are provided to be movable in the work space and heat and discharge a hydrogel onto the platform; and a control unit for controlling the movement of the nozzle modules and the discharge of the hydrogel from the nozzle modules.

Abstract: Disclosed is a Python-based integrated management method of an urban customized weather database for constructing urban weather observation data as an integrated database. The method includes the steps of: storing raw urban weather observation data collected from a plurality of urban weather observation networks as first files of a predetermined format according to an order of observation time at each observation point of the urban weather observation networks; extracting data of each observation point of the urban weather observation networks from the stored first files according to the order of observation time, for a predetermined weather element and analysis period; masking observation values belonging to a predetermined masking condition, among observation values included in the extracted data; and storing the masking-processed data as a second file.

Abstract: A portable terminal case having a skin condition-measuring function is disclosed. The case includes a battery case; a bumper case coupled to the battery case; a moisture measurement unit for receiving moisture level information in the skin of a user from a moisture measurement sensor; a contact detection unit for receiving information on the presence or absence of a contact between the bumper case and the skin from a contact detection sensor; an environment measurement unit for receiving surrounding environment information from an environment information measurement sensor; and a control unit for collecting the moisture content and the environment information from the moisture measurement unit and the environment measurement unit.

Abstract: Provided is a liquid lens assembly. A liquid lens according to an aspect of the present invention comprises: a first plate including a cavity; a first liquid which is conductive and disposed in the cavity; a second liquid which is non-conductive and disposed in the cavity; and a membrane disposed between the first liquid and the second liquid.

Abstract: A device for producing a skin care pack using hydrogel and a control method of the device are disclosed. The device includes a housing which is provided with a door for selectively opening and closing a work space for forming a skin care pack, and which maintains a forming temperature required for producing the skin care pack; a platform having a base supported on a floor plate of the work space of the housing; a former including one or more nozzle modules which are provided to be movable in the work space, and each of which includes a pump for receiving a heated hydrogel and then discharging it onto the platform through a nozzle, and includes a cooling device for cooling a pump motor of the pump; and a control unit for controlling the discharge of the hydrogel from the nozzle modules.