Abstract: The present invention provides a biocompatible three-dimensional scaffold and a composition for reconstructing lost tissue comprising the same. The scaffold of the present invention provides a mechanical support for a tissue cavity due to its strong physical strength and, at the same time, efficiently induces quantitative restoration of irreversibly lost tissue because the internal space thereof may be filled with active ingredients for tissue regeneration. In addition, when the spherical scaffold of the present invention is used, it may be efficiently inserted into a tissue cavity having any shape, and may also be degraded at an appropriate time after the completion of regeneration, indicating that it is useful as a scaffold for human transplantation for restoring various adipose tissues, including breast tissue.

Abstract: A massage device includes a controller for controlling the massage device; a body massage unit including a massage module for massaging at least a part of the user's body under the control of the controller; and a leg massage unit for massaging the user's legs under the control of the controller. The leg massage unit includes a first leg massage unit for massaging one of the user's legs, and a second leg massage unit for massaging the user's other leg, with the first leg massage unit and the second leg massage unit able to operate independently.

Abstract: A protection film according to an embodiment implements a very low reflectivity through a multilayer structure of which the refractive index is controlled and does not cause whitening and cracking to occur even in the case of frequent bending or folding thereof. Accordingly, the protection film is applied to a flexible display device, and especially to a cover of a foldable display device, thereby showing excellent optical and mechanical characteristics.

Abstract: The tissue removal device using focused ultrasound includes a focused ultrasound output unit, a mode setting unit to set an output mode of the focused ultrasound, and a control unit to control output characteristics of the focused ultrasound according to the set mode, wherein the output mode is selected from a first mode for removing a tissue in a local area using a vapor bubble formed by the focused ultrasound, a second mode for removing a tissue in a narrower area than the first mode by controlling the output characteristics of the focused ultrasound immediately after the vapor bubble is formed by the focused ultrasound, and a third mode for obtaining a skin tightening effect by generating heating in a subcutaneous fat layer using focused ultrasound of lower intensity and a longer pulse length than the first mode and the second mode.

Abstract: The present disclosure relates to a polyester resin composition including a polyester resin including a diol residue and a dicarboxylic acid residue, wherein the diol residue includes a cyclohexanedimethanol residue and the dicarboxylic acid residue includes an isophthalic acid residue and a terephthalic acid residue, wherein an amount of the isophthalic acid residue is 0 to 20 mol % when a total amount of the dicarboxylic acid residue is considered as 100 mol %, wherein an amount of the cyclohexanedimethanol residue is 50 to 100 mol % when a total amount of the diol residue is considered as 100 mol %, wherein the polyester resin composition includes an antioxidant, and wherein the antioxidant includes a phenol-based antioxidant, a phosphorus-based antioxidant, and a sulfur-based antioxidant.

Abstract: A cooler for a power module of an inverter includes power modules comprising chips arranged in a row direction and a column direction, a heat sink extending in a first direction parallel to the row direction, the power modules being coupled to one surface of the heat sink and a microfluidic channel comprising grooves disposed on another surface, and a housing comprising a first groove part comprising an inlet to receive a fluid and a first groove extending in a second direction to communicate with the inlet, a second groove part comprising an outlet to discharge the fluid and a second groove extending in the second direction to communicate with the outlet, and a separation part formed between the first groove part and the second groove part, wherein the heat sink is coupled to the housing to cause the first direction to be parallel to the second direction.

Abstract: A modular inverter including a capacitor unit including two or more capacitors arranged at a first side, a first capacitor busbar contacting a lower end of the capacitor unit and including a first capacitor connection portion including a first portion located on a second side of an upper end of the capacitor unit, a second capacitor busbar covering the upper end of the capacitor unit and including a second capacitor connection portion including a second portion extending outwardly to a third side of the upper end of the capacitor unit, a cooling unit disposed above the second capacitor busbar, and one or more power modules disposed above the cooling unit, the one or more power modules including a first power module busbar and a second power module busbar extending to the third side of the upper end of the capacitor unit and connected to the second capacitor connection portion.

Abstract: A display device is disclosed. The display device includes: a display, a sensor, a plurality of light emitting diodes (LEDs) provided in one region of the display and emitting light in different colors, and at least one processor, comprising processing circuitry. At least one processor, individually and/or collectively, according to an example can identify at least one of color information and brightness information corresponding to the plurality of LEDs, on the basis of RGB grayscale data of a pixel corresponding to a specified region of interest, from an image provided through the display, obtain ambient information, on the basis of sensing data obtained through the sensor, modify the identified information on the basis of the ambient environment information, and control light-emitting states of the plurality of LEDs on the basis of the modified information.

Abstract: The present invention relates to a visible light-sensitive photocatalyst composition and a visible light-sensitive photocatalyst film comprising the same, and more particularly, to a visible light-sensitive photocatalyst composition and a visible light-sensitive photocatalyst film comprising the same, which has catalytic properties of oxidizing and decomposing organic matter in the air in not only ultraviolet rays but also visible rays, sunlight and indoor lights, and is capable of removing harmful substances, deodorizing, sterilizing, etc., and can provide visibility.

Abstract: An aspect of the present disclosure provides a bus bar as a winding in a core of a transformer includes multiple sub-bars arranged horizontally and connected in parallel so as to minimize an AC current in the transformer, and the sub-bars have different widths and thus resistances or impedances with respect to a current flowing through the sub-bars are the same. Another aspect of the present disclosure provides a method of designing a bus bar for resistance or impedance matching between multiple sub-bars included in the bus bar to share a current to minimize an AC current in the transformer. Another aspect of the present disclosure provides a transformer, for a DC-DC converter for use in a vehicle, which is manufactured by the method of designing a bus bar.

Abstract: An acoustic tweezer is disclosed. The acoustic tweezer includes a function signal generator configured to generate a function signal for an ultrasound signal, a power amplifier configured to amplify the ultrasound signal based on the function signal, and an ultrasound transducer of a single channel in which a hologram thin film having different thin film thicknesses for each region is attached to an ultrasound oscillating surface of the ultrasound transducer, and the ultrasound transducer is configured to generate a plurality of ultrasound signals having different phase differences by allowing an oscillated ultrasound signal to pass through the hologram thin film.

Abstract: An implementation relates to a polyester-based film having low hygroscopicity, a manufacturing method therefor, and a membrane electrode assembly comprising same, and the polyester-based film has excellent flexibility, adhesion and durability and has a moisture absorption represented by formula 1, which meets 0.25% or less, and thus has excellent hydrolysis resistance so as to be applied as a film for a fuel cell sub-gasket and exhibit excellent characteristics.

Abstract: A battery condition monitoring apparatus includes a measurer configured to measure a charging current which is an internal current of a converter and is charged into a sub-battery, a charging voltage of the converter, and an ambient temperature of a vehicle, an impedance calculator configured to an impedance of the sub-battery on basis of a voltage and a current each measured by the measurer, and a determiner configured to determine a condition of the sub-battery by using the ambient temperature of the vehicle and the impedance of the sub-battery.

Abstract: Disclosed in the present invention are near-infrared reflecting functional pigment, paint, and panel, especially, used for a vehicle pigment or the like. The pigment according to the present invention comprises: a platelet-like substrate; a first metal oxide layer coated on at least a portion of the substrate and having a refractive index of 1.8 or larger, and a second metal oxide layer coated on at least a portion of the first metal oxide layer and containing an absorbent material, wherein the pigment reflects on average at least 30% of an IR electron beam of 850-950 nm.

Abstract: A low-voltage DC-DC converter (LDC) includes: an N-phase power circuit configured by connection of N DC-DC converters in parallel between a high-voltage (HV) battery and a low-voltage (LV) battery; and one output capacitor commonly connected to an output of each phase DC-DC converter. Each phase of the N-phase power circuit is controlled in an interleaving manner which delays a phase by 360°/N. Here, each N-phase power circuit is controlled by switching at a frequency of [(a frequency at which the parasitic resistance (equivalent series resistance (ESR)) of the output capacitor is minimized)/N]. The parasitic resistance of the output capacitor of the LDC can be minimized. Accordingly, a lifespan of a battery can be improved and efficiency of the DC-DC converter can be increased through the reduction of the equivalent series resistance (ESR) of the output capacitor.

Abstract: The bidirectional insulating DC-DC converter shares high/low voltage terminals, a cooling passage, a housing, and a control board, and two independent step-down circuit (10) and step-up circuit (20) are formed in parallel to perform a bidirectional DC power conversion. A high voltage applied from a high voltage battery HV is stepped down through the step-down circuit (10) and output to a low voltage battery LV. On the other hand, a low voltage applied from the low voltage battery LV is stepped up through the step-up circuit (20) and output to the high voltage battery HV. The step-down circuit (10) is formed as an active clamp forward converter circuit, and the step-up circuit (20) is formed as an active clamp flyback converter circuit.

Abstract: A polyester film according to an embodiment includes a polyester resin. The polyester resin includes a repeating unit having a cyclohexane skeleton and a repeating unit having a benzene ring. The polyester film has a base peak related to bending vibration of the benzene ring and a first peak related to C—O stretching vibration in a spectrum measured using a Fourier transform infrared spectrometer (FT-IR). The base peak is a peak at a wavenumber of 788 cm?1 to 798 cm?1. The first peak is a peak at a wavenumber of 1129 cm?1 to 1139 cm?1. The intensity of the base peak and the intensity of the first peak differ by ?0.05 to +0.05. According to an embodiment, a polyester resin having a controlled degree of crystallization can be applied to a film to impart excellent heat resistance, mechanical properties, and the like to the film.

Abstract: Disclosed is a polyester film comprising a polycyclohexylenedimethylene terephthalate resin having a degree of crystallinity of 36% or less as measured using a differential scanning calorimeter.

Abstract: The present disclosure relates to a new bidirectional low voltage DC-DC converter (LDC), that is, a DC-DC converter capable of satisfying a safety level required for an eco-friendly vehicle and an autonomous vehicle and improving power conversion performance, and a method and an apparatus for controlling the same. The LDC proposed in the present disclosure is a new concept bidirectional LDC in which a plurality of converters having the same power circuit topology are subjected to a parallel interleaving operation so as to enable both a buck operation and a boost operation, satisfy a high safety level, and improve power conversion performance. To this end, a plurality of bidirectional active-clamp flyback converters (for example, two or more bidirectional active-clamp flyback converters) are connected in parallel and are interleaved and controlled by a controller (for example, a microcomputer).

Abstract: The polyester film according to the embodiment can maintain its original characteristics even after a plurality of repeated folding by adjusting the deformed dimension as compared with the initial dimension of the film, in particular, by adjusting the ratio between the deformed dimensions in two in-plane directions perpendicular to each other to a specific range, in the cycle of straining and relaxing the film. Accordingly, the polyester film can be applied to a cover of a flexible display device, in particular, a foldable display device to exhibit excellent characteristics.