Abstract: According to the exemplary embodiments of the present invention, there is provided a blockchain based authentication and transaction system including a user DID (Distributed Identity) wallet which is an application program installed on a user's mobile terminal. Here, the user DID wallet allows a user to ascertain whether a counterpart is a legitimate party by verifying a counterpart's VP and expressing the verified counterpart ascertainment information to the user on a screen when the counterpart's VP provided from a counterpart system which is an authentication or transaction counterpart is obtained.

Abstract: A moving object capable of protecting a converter and a method therefor, includes a first battery outputting a voltage lower than a predetermined voltage and a second battery outputting a voltage higher than the predetermined voltage; a converter electrically connected to the first battery and the second battery and configured to convert the voltage from the first battery and to provide the converted voltage to the second battery; a protector configured to control the voltage of the first battery, which is provided to the converter, in response to a voltage difference between the first battery and the second battery reaching a protection condition; and a processor electrically connected to the protector and configured to determine, in response to the protection condition being reached, a required first battery output according to a target voltage difference between the first battery and the second battery and a request control of the moving object and to control an output of the first battery.

Abstract: The present invention relates to a method for producing an electrolyte for a vanadium redox flow battery, the method comprising: (a) a step for producing a first vanadium ion solution; (b) a step in which the first vanadium ion solution flows into a first positive electrode electrolyte tank and a first negative electrode electrolyte tank to which a first stack including a positive electrode, a separator, and a negative electrode is connected; (c) a step in which the first vanadium ion solution that has flowed into the positive electrode from the first positive electrode electrolyte tank is oxidized to generate a second vanadium ion solution, and the first vanadium ion solution that has flowed into the negative electrode from the first negative electrode electrolyte tank is reduced to generate a third vanadium ion solution; and (d) a step in which the second vanadium ion solution generated in the positive electrode is reduced into a fourth vanadium ion solution by reacting with a reducing agent.

Abstract: Provided is a bonding apparatus. The bonding apparatus includes a stage configured to accommodate a substrate, a laser light source configured to provide laser light to devices on the substrate, and a bonding plate provided between the laser light source and the stage and configured to provide the devices on the substrate. The bonding plate includes a transparent substrate; a transparent layer below the transparent substrate; an device adhesion layer below the transparent layer and a reflective pattern provided above or below the transparent substrate and the transparent layer.

Abstract: A pigment composition according to an embodiment includes aluminum flakes coated with a plurality of metal oxide layers and TiO2 coated with a metal oxide layer, thus having explosion stability. The pigment composition may be prepared by mixing with TiO2 coated with a metal oxide layer having lower apparent specific gravity as compared to other plate-shaped inorganic particles. The pigment composition can have stability against a thermite reaction by aluminum and metal oxides while preventing deterioration of saturation and opacity.

Abstract: A positive-type photosensitive resin composition, an insulating film made from the same, and a display device including such insulating film are provided. The positive photosensitive resin composition is excellent in sensitivity and has excellent chemical resistance, heat resistance, and hygroscopicity by including a polymer containing a hydroxyl group.

Abstract: An antenna structure according to an embodiment of the present disclosure includes a dielectric layer, and an antenna unit disposed on a top surface of the dielectric layer. The antenna unit includes a radiator including convex portions and concave portions, a transmission line including a first transmission line and a second transmission line that extend in different directions to be connected to the radiator, and a parasitic element disposed to be adjacent to the transmission line and electrically and physically separated from the transmission line and the radiator. A length of the parasitic element in an extension direction of the transmission line is from 45% to 70% of a half wavelength (?/2) at a maximum resonance frequency from the antenna unit.

Abstract: Proposed is a system and method of controlling regenerative braking torque of an eco-friendly vehicle, the system and method being configured to quickly reduce and maintain a wheel slip amount less than a reference value during coasting, and accordingly, being able to achieve coasting stability and stable regenerative braking, by controlling regenerative brake into zero when a wheel slip over a reference value is generated and an Anti-lock Brake System (ABS) is turned on while an eco-friendly vehicle coasts, and by gradually increasing regenerative braking torque of a motor with a predetermined inclination from zero using Proportional-Integral (PI) control when the ABS is turned off.

Abstract: A clamp has a structure including a band portion wrapping a circular member, such as a hose, a washer portion, a nut portion, and a connection portion and support portions that prevent the band portion from being deformed when a bolt is tightened, these portions being integrally formed with each other into a single portion. Therefore, reduction in the separate portions causes cost reduction, weight reduction, and reduction in risk of loss of the separate portions, and the performance problem in that the clamp rotates when the tightening work is performed by rotation of the bolt is improved.

Abstract: Provided is an organic-inorganic compound including a first structural body and a curable reactive group, wherein the first structural body may have a structure in which silane and isohexide are chemically bonded through a silyl ether bond.

Abstract: A gene amplification chip may include: a cover layer having a solution inlet through which a sample solution to be injected; a chamber layer disposed on one surface of the cover layer, and having a chamber to receive the sample solution when the sample solution is injected through the solution inlet such that an amplification reaction of the sample solution occurs in the chamber; a bottom layer disposed on another surface of the chamber layer; and a photothermal film attached to an outer surface of the bottom layer, and configured to convert light into heat to heat the sample solution received in the chamber.

Abstract: A display device includes: active stages each include a scan output circuit outputting a scan clock signal to a first output terminal and a carry output circuit outputting a carry clock signal to a second output terminal, when a voltage of a first node is at a logic high level. The scan output circuit and carry output circuit output a scan signal of a turn-off level to the first output terminal when a voltage of a second node or a carry signal is at a logic high level. An interval between pulses of the carry clock signal generated during one frame period is the same, and at least two of intervals between pulses of the scan clock signal generated during the one frame period are different from each other.

Abstract: A shaped cross-section composite fiber for an intake filter is manufactured from a single material of polypropylene, without separate binder processing by using the single material of polypropylene as a filter material. The shaped cross-section composite fiber includes: a sheath comprising a reformed polypropylene resin; and a core comprising a polypropylene resin, where the sheath and the core are combined to provide a sheath-core structure.

Abstract: An antenna structure according to an embodiment of the present disclosure includes a dielectric layer, and an antenna conductive layer disposed on a top surface of the dielectric layer. The antenna conductive layer includes a radiator, first and second transmission lines extending in different directions to be connected to the radiator, an upper parasitic element adjacent to an upper portion of the radiator in a planar view, and a lower parasitic element adjacent to a lower portion of the radiator, the first transmission line and the second transmission line in the planar view.

Abstract: A cooking appliance includes a cavity and a partition configured to partition the cavity. The partition includes an upper partition, a lower partition, and a heater arranged between the upper partition and the lower partition. The partition further includes a heater installation member provided to detachably mount the heater. At least one of the upper partition and the lower partition further includes a heater installation member installation hole to install the heater.

Abstract: An apparatus for obtaining a target signal spectrum includes: a spectrum measurer configured to measure a plurality of spectra from an object; and a processor configured to obtain a difference spectrum matrix by subtracting a reference spectrum from each of the plurality of spectra, and to obtain a spectrum of a target signal based on the obtained difference spectrum matrix.

Abstract: A self-aligning process method and a self-aligning process apparatus for reducing critical dimension variation of a SiC trench gate MOSFET structure are disclosed.

Abstract: Provided are a microwave heating device and a method for manufacturing a semiconductor packaging using the same. The microwave heating device includes a microwave generator configured to generate microwaves, a microwave absorbing layer configured to receive the microwaves so as to be heated, a temperature measuring layer provided on the microwave absorbing layer, a sensor configured to detect a temperature of the temperature measuring layer, and a controller connected to the sensor and the microwave generator to determine the temperature of the microwave absorbing layer using a detection signal of the sensor, the controller being configured to control a voltage of the microwaves provided from the microwave generator based on the temperature of the microwave absorbing layer.

Abstract: An abutment for implant including a connect reducing a diameter of a screw hole according to the present invention includes: a base provided with a coupling hole having a screw thread penetrating therethrough in a height direction of a central portion; a connector having a screw thread formed on an outer circumferential surface thereof to be threaded with the coupling hole of the base and having a screw hole penetrating along a height direction of a central portion; and a screw inserted into the screw hole to be threaded with a coupling hole and a fixture.

Abstract: An apparatus and method for bio-particle detection are provided. The apparatus for bio-particle detection includes: a bio-particle detection chip including a substrate having a plurality of through-hole groups, each through-hole group of the plurality of through-hole groups including through-holes which pass through the substrate from a first surface of the substrate toward an second surface of the substrate opposite to the first surface, and which are configured to accommodate a sample solution loaded therein; and a processor configured to determine a number of through-holes, among the through holes of at least one through-hole group of the plurality of through-hole groups, having a target material encapsulated therein, based on at least one of an electrical signal and an optical signal corresponding to the through-holes of the at least one through-hole group, and to estimate a concentration of the target material based on the determined number.