Abstract: Disclosed are a message service provision method for providing a message service via an open chat room corresponding to link information, and a message server and a terminal for executing the message service provision method. The message service provision method comprises the steps of: transmitting, to a message server, a request for issuing link information for an open chat room via a message application; receiving, from the message server, link information generated in response to the request for issuing link information; sharing the link information according to a request for sharing inputted by a user of a host terminal; and performing chatting with a user of a guest terminal participating in the open chat room by means of the shared link information; wherein the user of the guest terminal and the user of the host terminal are users who subscribed to a message service provided via the message server.

Abstract: A tubular structure for a rectangular battery can for an electric vehicle, which is thin and has very high dimensional accuracy in order to contain as much electrolyte as possible within a limited size, and a method of manufacturing the same are disclosed. In particular, extrusion of a material to a predetermined thickness is performed, and drawing of the extruded material to a thickness desired by a final product is performed. Accordingly, desired thickness uniformity of the final product is maintained.

Abstract: A system for controlling a vehicle includes the vehicle acquiring information about driving, first information about a preceding vehicle, second information about a following vehicle, and third information about a surrounding vehicle and a server to acquire traffic information ahead of the vehicle, calculate a danger prediction result by inputting the traffic information, the first information, and the second information into a danger prediction model, determine an operation for coping with a danger based on at least one of the traffic information, the danger prediction result, the information about the driving, the first information, the second information, the third information, road information, or any combination thereof, and transmit information about the operation for coping with the danger to the vehicle.

Abstract: In a driving information display apparatus and method for providing charging guidance information for an electric vehicle, the driving information display apparatus can include a processor configured to perform control to receive driving guidance information and the location information of an electric vehicle and output a guidance screen corresponding to the driving guidance information, and a storage unit configured to store road information and an algorithm run by the processor. The driving guidance information can include charging guidance information intended to prevent the battery charge level of the electric vehicle from being lower than a target remaining battery charge level generated based on the internal and external state information of the electric vehicle and information related to a current driver.

Abstract: The present invention relates to a culture medium for isolating and culturing urine-derived stem cells, a method for isolating and culturing urine-derived stem cells using the culture medium, urine-derived stem cells cultured in the culture medium, and a cell therapy product composition containing same.

Abstract: An inhaler according to one embodiment may comprise: a housing having one surface, the other surface opposite the one surface, and a plurality of side surfaces connecting the one surface and the other surface; a reservoir located inside the housing and storing an inhalable composition; a canister accommodating an inhalable composition to be stored in the reservoir and openably/closably connected to the reservoir; a relief valve spaced apart from the canister and installed to open and close the reservoir with respect to the outside; and a lever that controls the opening/closing operation of at least one of the canister or the relief valve, wherein the lever can control the canister to be opened after the relief valve is opened.

Abstract: The present invention relates to a rubber composition for a tire, which includes 100 parts by weight of raw material rubber, 1 to 20 parts by weight of a lignin-based antioxidant, and 0.1 to 3 parts by weight of a crosslinking agent.

Abstract: A wear resistant steel material has high hardness and excellent cut crack resistance, that can be applied to a thick steel material of which the thickness is 60 mm or more, that is not cracked even after being cut using gas, and a method of manufacturing the wear resistant steel material.

Abstract: Disclosed herein is a method for compressing point cloud data. The method includes quantizing input point cloud data, generating a global motion matrix based on the quantized point cloud data, applying the global motion matrix based on whether local motion compression is performed, and compressing data to which the global motion matrix is applied.

Abstract: The disclosure relates to a digital twin management system for injection molding equipment. A system synchronized with reality is provided by reflecting molding data acquired from a molding machine, a peripheral device, and a transfer device in a cyber physical model portion in real time based on extracted information, thereby facilitating management, increasing productivity, and reducing an operator's operation time.

Abstract: An embodiment control device includes a voltage controller configured to output an input current command value of a power factor correction (PFC) based on an output voltage and an output voltage command value of the PFC, a current controller configured to control an input current of the PFC by determining a switching duty of the PFC based on the input current command value, and a current command upper limit generator configured to output an input current command upper limit value of the PFC based on an input current limit value and an input current command offset value of the PFC, wherein the input current command upper limit value has an alternating current (AC) component.

Abstract: Provided is a polymer dispersed liquid crystal display including a first substrate and a second substrate disposed to oppose each other, a first electrode on an upper surface of the first substrate, a second electrode on a lower surface of the second substrate, wherein the upper surface of the first substrate faces the lower surface of the second substrate, a liquid crystal layer disposed between the first electrode and the second electrode, quid crystal drops distributed in the liquid crystal layer, and nano-particles distributed in the liquid crystal layer, wherein the nano-particles are insulators and may have light transmittance.

Abstract: A semiconductor memory device having a hybrid capacitor includes a cell transistor including a gate structure provided on a substrate, and a first impurity region and a second impurity region disposed on the substrate at both sides of the gate structure, a bit line structure electrically connected to the first impurity region, and a hybrid capacitor including a control element electrically connected to the second impurity region and configured to control the flow of current by changing a resistance thereof according to a magnitude of an applied voltage, and a cell capacitor connected in series to the control element and functioning as a storage node configured to store charges, wherein the control element includes a first electrode, a switching material layer, and a second electrode, and the cell capacitor includes the second electrode, a capacitor dielectric layer, and a third electrode.

Abstract: Provided are a hot press-formed part and a manufacturing method thereof, the hot press-formed part comprising: a base steel sheet; and a plating layer provided on at least one surface of the base steel sheet, wherein the plating layer includes an average number of Kirkendall voids per unit area in a specific range, in an area within 20 ?m from the interface between the base steel sheet and the plating layer.

Abstract: An aluminum plate coiling device capable of coiling an extruded and rolled aluminum plate without generating distortion or deformation of the aluminum plate is disclosed. The aluminum plate coiling device has a simple structure, thereby being capable of achieving a reduction in installation space and a reduction in installation cost.

Abstract: An inhaler according to an embodiment comprises: a housing provided with one surface, the opposite surface facing the one surface, and a plurality of side surfaces connecting the one surface and the opposite surface; a canister that is mounted inside the housing so as to be replaceable and accommodates an inhalable composition; a reservoir that is connected to the canister and stores the inhalable composition supplied from the canister; a relief valve that is installed in the reservoir and operates to open and close off the reservoir with respect to the outside; and a cover, one side of which is rotatably coupled to the housing and the other side of which is detachably coupled to a location corresponding to the bottom surface of the canister. The cover can be opened to remove the canister from the housing after opening the relief valve.

Abstract: An inhaler according to an embodiment comprises: a housing provided with one surface, the other surface facing the surface, and a plurality of side surfaces connecting one surface to the other surface; a mouthpiece arranged on one surface of the housing; a storage which is in communication with the mouthpiece and stores an inhalable composition; and a canister which accommodates the inhalable composition which is to be stored in the storage and is connected to the storage to be opened/closed, wherein the canister can be coupled to the storage to be attachable/detachable in the housing.

Abstract: An inhaler according to an embodiment comprises: a housing provided with one surface, the other surface facing the surface, and a plurality of side surfaces connecting one surface to the other surface; a canister which is attached in the housing to be replaceable and accommodates an inhalable composition; a storage to which the canister is connected to be opened/closed and which stores the inhalable composition; a lever which controls the opening/closing operations of the canister; and a counter arranged between the canister and the lever to be rotatable, wherein the counter is rotated by a certain angle according to the operation of the lever so as to provide notification of the remaining amount of the inhalable composition in the canister.

Abstract: The present invention relates to: a steel material for hot forming, used for a vehicle, etc.; a hot formed part; and a method for manufacturing thereof.

Abstract: The construction method of NALU (Network Abstraction Layer Unit) for IPv6 label switching and its using algorithms of video encoding, QoS control, and decoding are provided. According to an embodiment of the present invention, the NALU format is composed of the NALH (Network Abstraction Layer Header) including the label and the NAL (Network Abstraction Layer) payload. Here, the label is determined based on layer information which is combination of a spatial scalable level, a temporal scalable level, and a quality scalable level of the encoded data. The decoder uses the label to decide which one of multiple decoding modules is used to decode the current NAL payload. Moreover, the label can be included in the packet header so that the MANE (Media Aware Network Element) can use the label to decide whether to forward the packet or drop it. For example, the label in the packet header can be used for QoS control of video service by using the flow label field in IPv6 packet header.