Abstract: The present invention relates to a three-dimensional (3D) printing system for manufacturing an artificial blood vessel and a method for manufacturing an artificial blood vessel using the same, wherein a cylindrical support having a hollow 3D porous structure including a thermoplastic polymer is manufactured and vertically fixed, and a hydrogel divided into at least two sections is discharged into the support, thereby maintaining the structure and shape constantly even after printing and manufacturing an artificial blood vessel having a hollow multilayered structure.

Abstract: Compressor head fixing device, a compressor and a refrigeration device. The compressor head fixing device includes a cylinder block and a cylinder head cover, the cylinder head cover being connected to the cylinder block by a fastener, the cylinder block being provided with a compression chamber and an assembly hole configured to fix the fastener; a noise reduction chamber, provided on the cylinder block; and a communication passage, provided in the cylinder block and the cylinder head cover, and being in communication with the assembly hole, the noise reduction chamber and the compression chamber. The compressor head fixing device has a compact structure, a length of the exhaust passage is shortened and the exhaust pressure is reduced.

Abstract: A handpiece tip for refrigerant injection of an RF high frequency device for skin treatment including a refrigerant injection nozzle configured to inject a refrigerant for local anesthesia in a plane direction is disclosed. Also disclosed is a handpiece tip for refrigerant injection of an RF high frequency device configured such that a needle is inserted into a projecting piece of the skin, which is projected as the result of being suctioned by a skin adsorption contact unit, whereby the needle is located in a place at a position desired by an operator.

Abstract: A substrate may be included in an electronic device. The substrate may include a first layer that may include a dielectric material. The first layer may define a substrate surface. The substrate may include a second layer optionally including the dielectric material. The second layer may be coupled to the first layer. A wiring trace may be located in the substrate. A recess may extend through the substrate surface, the first layer, and may extend through the second layer. A substrate interconnect may be located within the recess. The substrate interconnect may be at least partially located below the substrate surface. The substrate interconnect may be in electrical communication with the wiring trace.

Abstract: A light emitting device including first and second electrodes spaced apart from each other on a substrate, at least one bar-type LED having a first end on the first electrode and a second end on the second electrode, and an insulative support body between the substrate and the bar-type LED. The at least one bar-type LED has a length greater than a width.

Abstract: An electronic device may include a circuit board, radiators disposed on the circuit board, and provided with a first feeding signal to transmit or receive a wireless signal in a first frequency band; and a ground disposed on the circuit board to provide a reference potential for the radiators. The radiators and a whole or a portion of the ground may be provided with an additional feeding signal to transmit or receive a wireless signal in various frequency bands that are lower than the first frequency band.

Abstract: A battery pack includes at least two battery modules arranged in one direction; and a fire extinguisher having a linear temperature sensor partially extending linearly along the at least two battery modules and configured to sense whether at least one of the at least two battery modules has a temperature over a predetermined temperature, a fire extinguishing tank configured to accommodate a fire extinguishing agent therein, a pipe connected to the fire extinguishing tank to supply the fire extinguishing agent from the fire extinguishing tank to each of the at least two battery modules, and a valve opened to supply the fire extinguishing agent from the fire extinguishing tank to the battery module over the predetermined temperature.

Abstract: Embodiments disclose a level shifter including a logic unit configured to receive timing data and channel data and output an edge signal and a channel signal at a time point defined in the timing data, and a channel selection unit configured to select at least one channel from among a plurality of connected channels according to the channel signal and transmit the edge signal, and a display device including the same.

Abstract: A semiconductor structure is provided. The semiconductor structure includes a first die and a second die. The first die includes a substrate, an interconnection structure and a capacitor structure. The substrate has a front-side surface and a back-side surface. The interconnection structure is disposed over the front-side surface. The capacitor structure extends from the back-side surface to the front-side surface and into the interconnection structure. The second die is disposed over the back-side surface and is bonded to the first die. A method for forming a semiconductor structure is also provided.

Abstract: A plastic composite includes a face sheet layer consisting of poly(methyl methacrylate) (PMMA) or acrylic styrene acrylonitrile (ASA); a long fiber injection (LFI) layer disposed on a lower surface of the face sheet layer and consisting of polyurethane foam including reinforcing fiber; and a rib pattern layer formed on a lower surface of the LFI layer and comprising a plurality of ribs.

Abstract: The present disclosure relates to a vapor deposition compound capable of being deposited into a thin film through vapor deposition. Specifically, the present disclosure relates to a novel compound applicable to atomic layer deposition (ALD) or chemical vapor deposition (CVD) and having excellent reactivity, volatility, and thermal stability, a precursor composition containing the novel compound, a method of forming a thin film using the precursor composition, and a thin film formed using the precursor composition.

Abstract: The present disclosure discloses a method for preparing a composite cathode for an all-solid battery, a composite cathode, and an all-solid battery including the same. A method of preparing a composite cathode comprises applying a slurry, which comprises a cathode active material and an oxide-based solid electrolyte, to a substrate to form a composite oxide sheet, and light-sintering the composite oxide sheet by irradiating light thereon to form a sintered composite oxide sheet. A composite cathode comprises a cathode current collector and a sintered composite oxide sheet comprising a cathode active material and an oxide-based solid electrolyte, formed on at least one surface of the cathode current collector, and a radius of curvature of 5R or less.

Abstract: Proposed are a substrate treatment apparatus and a substrate treatment method, and a technology capable of reducing a nozzle driving deviation between facilities by feedback a repetitive operation of a nozzle driving cylinder of the substrate treatment apparatus and by correcting an air input flow rate of the nozzle driving cylinder according to an error in the operation of the nozzle driving cylinder is provided.

Abstract: A battery module includes: a housing; a plurality of battery cells inside the housing, each of the battery cells having vents; and a fire-extinguishing sheet inside the housing and covering the vents of the battery cells. The fire-extinguishing sheet includes: a main body portion including a metal and accommodating a fire-extinguishing agent therein; and an insulating film covering first and second surfaces of the main body portion.

Abstract: The present disclosure relates to a method for fabricating a touch substrate, a touch substrate and a touch device. The method includes: forming, through a splicing exposure process, a first electrode layer including a metal strip in an edge region thereof and a first metal mesh pattern connected with the metal strip; forming, on one side of the first electrode layer and through a splicing exposure process, a second electrode layer including a metal strip in an edge region thereof and a second metal mesh pattern connected with the metal strip and insulated from the first metal mesh pattern, the metal strip of the first electrode layer directly contacting the metal strip of the second electrode layer to form a metal stack; and forming a wire electrically connected with one of the first and metal mesh patterns of the first and second electrode layers by using the metal stack.

Abstract: A battery protection structure for a battery-mounted vehicle, includes center side members disposed below a center floor at opposite side portions of the vehicle, a plurality of center cross members disposed in a transverse direction of the vehicle to connect the center side members to each other, cross member extensions each connecting each of the center side members to each of side sills to be aligned with each of the center cross members, and a battery disposed below the center cross members between the center side members.

Abstract: Disclosed is an erase operation method of a semiconductor memory device which includes a cell string disposed between a bit line and a common source line and connected with a plurality of word lines. The operation method includes precharging a channel of the cell string by applying a ground voltage to the bit line and applying a pass voltage to the word lines, and generating a gate induced drain current (GIDL) current by applying an erase voltage to the bit line and the pass voltage to the word lines, and the pass voltage is greater than the ground voltage, and the erase voltage is greater than the pass voltage.

Abstract: The inventive concept provides a liquid supply unit which may implement a rotation (swing) of a plurality of nozzles by a single motor, and which has simple structure. The liquid supply unit includes a first nozzle, a second nozzle, a motor, and a first belt. The first nozzle includes a first supply pipe for supplying a liquid, a first rotation part provided at a bottom part of the first supply pipe, and a first electromagnetic clutch provided at a bottom part of the first rotation part. The second nozzle includes a second supply pipe for supplying a liquid, a second rotation part provided at a bottom part of the second supply pipe, and a second electromagnetic clutch provided at a bottom part of the second rotation part. The motor provides a rotation force to the first electromagnetic clutch. The first belt which interlocks a rotation of the first electromagnetic clutch and the second electromagnetic clutch.

Abstract: The present disclosure relates to a cooling device for heat treatment that performs heat treatment by cooling individually or as a whole a heated metal object. The cooling device for heat treatment includes: a chamber within which a plurality of objects is disposed; an individual cooling unit configured to individually cover the object and to spray a cooling medium onto the object; and a driving unit configured to be provided on the chamber and to move the individual cooling unit in an up and down direction.

Abstract: An acoustic output of therapeutic devices used in shock wave therapy can be obtained by measuring the pressure waves radiated from the pressure wave transducer in water. Since the pressure waves used in shock wave therapy generate severe bubbles in water, measuring the surface vibrations of the pressure wave transducer using the laser Doppler method includes significant noise caused by the bubbles. This invention utilizes a filter generated to eliminate the noise in the vibration signals measured by the laser Doppler method, which is caused by the bubbles. The filter is generated by comparing the vibration signals measured in degassed distilled water with the reference signals measured in air at the minimum output setting of the shock wave generation device. Using the filter, it is possible to estimate the vibration signals of the pressure wave transducer generated underwater under the set conditions of the specific shock wave generating device.