Abstract: A semiconductor device includes a lower electrode; a supporter supporting an outer wall of the lower electrode; a dielectric layer formed on the lower electrode and the supporter; an upper electrode on the dielectric layer; a first interfacial layer disposed between the lower electrode and the dielectric layer and selectively formed on a surface of the lower electrode among the lower electrode and the supporter; and a second interfacial layer disposed between the dielectric layer and the upper electrode, wherein the first interfacial layer is a stack of a metal oxide contacting the lower electrode and a metal nitride contacting the dielectric layer.

Abstract: A shoes care device includes an inner cabinet configured to accommodate shoes inside; a outlet configured to suck air inside the inner cabinet; a nozzle duct having one end hinge-coupled to the inner cabinet so as to protrude into the inner cabinet, and which forms a passage for air; a nozzle hinge-coupled to the other end of the nozzle duct so that the shoes can be inserted into the inner cabinet, and configured to inject air into the shoes; a nozzle connector, of which one end is hinge-coupled to the inner cabinet and of which the other end is hinge-coupled to the nozzle; a connection path from the suction to the nozzle; a blowing part in the connection path and configured to ventilate air from the outlet to the nozzle; and a dehumidifying part in the connection path and capable of dehumidifying the ventilated air.

Abstract: Provided are a silicon nitride film etching composition, a method of etching a silicon nitride film using the same, and a manufacturing method of a semiconductor device. Specifically, a silicon nitride film may be stably etched with a high selection ratio relative to a silicon oxide film, and when the composition is applied to an etching process at a high temperature and a semiconductor manufacturing process, not only no precipitate occurs but also anomalous growth in which the thickness of the silicon oxide film is rather increased does not occur, thereby minimizing defects and reliability reduction.

Abstract: Discussed is a display device for improving both transmittance and efficiency of light that is transmitted through a light-emitting unit and a transmissive unit due to a phase difference of ? at an interface between an organic layer and an optical compensation layer of the display device.

Abstract: A shoes care device includes an inner cabinet having an accommodation space configured to accommodate shoes; a outlet formed on a bottom of the inner cabinet so as to suck air inside the inner cabinet; a connection path forming a flow path through which air in the accommodation space is discharged from the inner cabinet through the outlet and then introduced back into the accommodation space; a blowing part disposed in the connection path and configured to ventilate air; a dehumidifying part disposed in the connection path and configured to dehumidify air; and a main shelf installed to cover the bottom of the inner cabinet and having an upper surface on which the shoes can be settled.

Abstract: Disclosed are various methods for transmitting or receiving data or control information having high reliability conditions. A method for operating a terminal which transmits uplink control information (UCI) includes: a step of generating UCI; a step of comparing the priority of an uplink (UL) control channel for the transmission of the UCI with the priority of a UL data channel when some symbols of the UL control channel and the UL data channel overlap; and a step of selecting the UL channel having a higher priority among the UL control channel and the UL data channel, and transmitting the UCI to a base station through the selected UL channel.

Abstract: A vehicle thermal management system, may include an HVAC subsystem including a first compressor and a first refrigeration cycle including a first refrigerant loop fluidly connected to the first compressor; a battery cooling subsystem including a battery coolant loop fluidly connected to a battery pack; a powertrain cooling subsystem including a powertrain coolant loop fluidly connected to a powertrain component; a second refrigeration cycle including a second compressor, a condenser located on the downstream side of the second compressor, and a second refrigerant loop fluidly connected to the condenser; a refrigerant chiller mounted between the first refrigeration cycle and the second refrigeration cycle and configured to transfer heat between the first refrigeration cycle and the second refrigeration cycle; and a battery chiller mounted between the second refrigeration cycle and the battery coolant loop and configured to transfer heat between the second refrigeration cycle and the battery coolant loop.

Abstract: An abutment coupled to an upper part of a dental implant fixture includes a coupler coupled to a polygonal groove or a polygonal protrusion of the fixture; and a body mounted with a crown which is an artificial tooth and has a shape to be connected to a mount driver used for coupling to the fixture and serves as a scan body for digital impression.

Abstract: A thermal management system for a vehicle includes a first refrigeration cycle thermally connected to a passenger compartment and including a first refrigerant loop, a battery cooling sub-system thermally connected to a battery and including a battery coolant loop, and a second refrigeration cycle thermally connected to the first refrigeration cycle and the battery cooling sub-system and including a second refrigerant loop. The second refrigeration cycle may include an upstream-side heat exchanger configured to selectively transfer heat between the first refrigerant loop and the second refrigerant loop, and a downstream-side heat exchanger configured to transfer heat between the battery coolant loop and the second refrigerant loop.

Abstract: An embodiment vehicle thermal management system includes a first refrigeration cycle including a first refrigerant loop in which a first refrigerant is circulated, a battery cooling subsystem including a battery coolant loop in which a battery-side coolant is circulated, wherein the battery coolant loop is fluidly connected to a battery, a second refrigeration cycle including a second refrigerant loop in which a second refrigerant is circulated, the second refrigeration cycle comprising a condenser thermally connected to the battery cooling subsystem, a refrigerant chiller thermally connecting the first refrigeration cycle and the second refrigeration cycle, and a battery chiller thermally connecting the second refrigeration cycle and the battery cooling subsystem, wherein the condenser is located on a downstream side of the battery chiller in the second refrigerant loop.

Abstract: A vehicle thermal management system, may include an HVAC subsystem including a first compressor and a first refrigeration cycle including a first refrigerant loop fluidly connected to the first compressor; a battery cooling subsystem including a battery coolant loop fluidly connected to a battery pack; a powertrain cooling subsystem including a powertrain coolant loop fluidly connected to a powertrain component; a second refrigeration cycle including a second compressor, a condenser located on the downstream side of the second compressor, and a second refrigerant loop fluidly connected to the condenser; a refrigerant chiller mounted between the first refrigeration cycle and the second refrigeration cycle and configured to transfer heat between the first refrigeration cycle and the second refrigeration cycle; and a battery chiller mounted between the second refrigeration cycle and the battery coolant loop and configured to transfer heat between the second refrigeration cycle and the battery coolant loop.

Abstract: A method for controlling heating of a vehicle thermal management system is provided. The method includes activating, by a controller, a compressor of an HVAC subsystem when heating of a passenger compartment is required and determining whether a heat rejection from a powertrain component is greater than or equal to a reference heat rejection. A powertrain-side pump is activated and a battery-side pump is stopped when the heat rejection is greater than or equal to the reference heat rejection. A refrigerant circulating in the HVAC subsystem exchanges heat with a powertrain coolant having absorbed heat from the powertrain component.

Abstract: A method for controlling heating of a vehicle thermal management system including an HVAC subsystem may include: determining, by a controller, a target temperature for heating a passenger compartment of a vehicle when the HVAC subsystem operates in heating mode; determining, by the controller, whether an internal temperature of the passenger compartment is lower than the target temperature; adjusting, by the controller, an opening amount of a heating-side expansion valve of the HVAC subsystem to a first opening amount and opening the heating-side expansion valve when the internal temperature is lower than the desired target temperature; and decreasing, by the controller, RPM of a compressor of the HVAC subsystem when the internal temperature is higher than or equal to the desired target temperature. The first opening amount is an opening amount of the heating-side expansion valve with which a heat capacity generated by a heating operation of the HVAC subsystem reaches a maximum heat capacity.

Abstract: A method for controlling pressure in a vehicle thermal management system, includes: determining, by a controller, whether only the battery pack is cooled when cooling of a passenger compartment is desired; stopping, by the controller, the compressor when it is determined that only the battery pack is cooled; determining, by the controller, whether a noise generation condition is satisfied after stopping the compressor.

Abstract: A thermoelectric module is provided. The thermoelectric module includes: a first thermoelectric material unit including a first unit thermoelectric material disposed in a first direction; and a second thermoelectric material unit electrically connected to the first thermoelectric material unit and including a second unit thermoelectric material disposed in a second direction that intersects the first direction.

Abstract: A rechargeable type callus removal instrument is disclosed, that includes a main body having a flaring tube shape with one side opened. The instrument can include a callus storage fitted around the motor shaft of an internal motor that rotates with rotation of the motor shaft, thereby collecting calluses separated from a user's foot therein. A filing cap can cover an upper surface of the callus storage for removing calluses on the user's foot while rotating with the callus storage in contact with a callus surface of the foot. A guide member can be included to assist with forming an exterior barrier such that the calluses being removed by the filing cap are collected in the callus storage without scattering about to the outside. The callus removal instrument enables callus removal using a rotational force of a motor through electric recharging with an improved portability while preventing water infiltration.

Abstract: A rechargeable type callus removal instrument is disclosed, that includes a main body having a flaring tube shape with one side opened. The instrument can include a callus storage fitted around the motor shaft of an internal motor that rotates with rotation of the motor shaft, thereby collecting calluses separated from a user's foot therein. A filing cap can cover an upper surface of the callus storage for removing calluses on the user's foot while rotating with the callus storage in contact with a callus surface of the foot. A guide member can be included to assist with forming an exterior barrier such that the calluses being removed by the filing cap are collected in the callus storage without scattering about to the outside. The callus removal instrument enables callus removal using a rotational force of a motor through electric recharging with an improved portability while preventing water infiltration.