Abstract: An embodiment of the present specification provides a method for preparing a catalyst for preparing a carbon nanotube, comprising: (a) dissolving a main catalyst precursor, a support precursor, a cocatalyst precursor and a precipitation inhibitor in a solvent to prepare a precursor solution; and (b) pyrolyzing the precursor solution by spraying the precursor solution into a reactor, wherein a mole fraction of the precipitation inhibitor to the cocatalyst precursor is 0.1 to 1.5.

Abstract: A conductive composite material, a method of preparing the same, and a secondary battery including the same. The conductive composite material may increase the proportion of an active material when forming an electrode by chemically bonding a conductive material and a binder to each other. A method of preparing the conductive composite material comprises ionizing carbon-based particles in a predetermined polarity, ionizing PTFE particles in a polarity different from that of the carbon-based particles, and chemically bonding the ionized carbon-based particles and the ionized PTFE particles, which are ionized in different polarities, to each other.

Abstract: A bump stopper can be provided for a vehicle. The bump stopper includes an upper part, a lower part, and a connection member. The upper part and the lower part are stacked vertically and have double density. The connection member is positioned at an interface between the upper part and the lower part to connect the upper part and the lower part.

Abstract: The invention relates to the use of an animal-protein-free botulinum toxin composition to treat a disease, disorder or condition in a patient in need thereof whereby the animal-protein-free botulinum toxin composition exhibits a longer lasting effect in the patient compared to an animal-protein-containing botulinum toxin composition.

Abstract: A semiconductor memory device may include a cell substrate; a mold structure including a plurality of gate electrodes stacked on the cell substrate; a channel structure penetrating the mold structure; a string select line on the mold structure; a string select channel structure penetrating the string select line and contacting the channel structure; an anti-arcing contact penetrating the mold structure; an insulating pattern between the anti-arcing contact and the plurality of gate electrodes; and an anti-arcing insulating pattern penetrating the string select line to be in contact with the anti-arcing contact.

Abstract: A positive electrode material for a lithium secondary battery has improved electron conductivity and surface stability because oxidation-treated carbon nanotubes are stably attached to the surface of an active material. According to one embodiment the positive electrode material includes a positive electrode active material core made of a Li—Ni—Co—Mn-M-O-based material (M=transition metal) and an oxidized carbon nanotube coating layer formed on the surface of the positive electrode active material core and including 1% to 3% by weight of oxidation-treated carbon nanotubes (OCNT) relative to 100% by weight of the positive electrode active material core.

Abstract: An electronic component includes: a multilayer capacitor including a capacitor body and a pair of external electrodes, respectively disposed on external surfaces of the capacitor body in a first direction; and an interposer disposed below the multilayer capacitor and including an interposer body, a pair of via holes penetrating through the interposer body, and a pair of via electrodes, respectively disposed in the via holes to be connected to the pair of external electrodes, respectively. 0.24T?t?0.3T, where “T” is a maximum height of the multilayer capacitor and “t” is a maximum height of the interposer.

Abstract: A wireless communication system, according to one embodiment of the present invention, comprises: a first communication module; and at least one second communication module wirelessly connected to the first communication module, wherein the first communication module is wirelessly connected to the second communication module to which driving power is applied from the same power source as that of the first communication module.

Abstract: A positive electrode material for a lithium secondary battery and a manufacturing method therefor are provided. The positive electrode material may have carbon nanotubes stably attached to a surface of an active material and may exhibit increased electron conductivity and improved surface stability. The positive electrode material for a lithium secondary battery may comprises: a positive electrode active material core comprising a Li—Ni—Co—Mn-M-O-based material, where M is a transition metal; and a carbon nanotube coating layer on a surface of the positive electrode active material core. Carbon nanotubes (CNT) may be in an amount of 1-5 wt %, based on 100 wt % of the positive electrode active material core.

Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.

Abstract: The present invention relates to a method of preparing a positive electrode which includes forming a solid electrolyte by mixing a lithium salt and a polymer for a solid electrolyte in a dry atmosphere, forming a dry mixture by stirring after adding a conductive agent and a positive electrode active material to the solid electrolyte in a dry atmosphere, and pressing after coating a current collector with the dry mixture.

Abstract: Disclosed herein is a method of depositing a transition metal single-atom catalyst including preparing a carbon carrier, and depositing a transition metal single-atom catalyst on the carbon carrier, in which the carbon carrier is surface-treated by an oxidation process, and wherein the deposition is carried out by an arc plasma process.

Abstract: A smart drilling system includes a terminal configured to map a design space to an actual space and having perforation location information in the design space, a drilling machine including a drill for perforation and configured to perform perforation in the actual space under control of the terminal based on the perforation location information, and a total station configured to acquire location information of a reference point in the actual space for mapping the design space to the actual space and location information of the drilling machine in the actual space, and to transmit the location information of the reference point in the actual space and the location information of the drilling machine to the terminal, wherein the terminal recognizes and displays a perforable region or a perforable point at a current position of the drilling machine.

Abstract: The present invention relates to a smart pension management system and a driving method therefor. The smart pension management system comprises: a number-of-accounts calculation unit for calculating the number of pension accounts by using user age information, life expectancy information, and pension indexes; a payment amount determination unit for determining a monthly pension payment by using the number of pension accounts calculated by the number-of-accounts calculation unit; and a payment processing unit for paying, to a user's account, the monthly pension payment determined by the payment amount determination unit, and thus a client can transparently and easily check pension payment details and management situation.

Abstract: A display apparatus including a thin film transistor (TFT) substrate; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit; first, second, third, and fourth electrode pads disposed between the TFT substrate and the first LED sub-unit; and connectors connecting the first, second, and third LED sub-units to a respective one of the electrode pads, in which the first, second, and third sub-units are configured to be independently driven; light generated from the first LED sub-unit is emitted to the outside of the display apparatus by passing through the second and third LED sub-units; light generated from the second LED sub-unit is emitted to the outside of the display apparatus by passing through the third LED sub-unit; and at least one of the connectors includes a first portion electrically connecting a first surface of the first LED sub-unit to the second electrode pad.

Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.

Abstract: Disclosed is an exoskeleton-type rehabilitation robot system, including: a body part provided on a chair in which a user sits and provided with a robot arm capable of moving left or right based on the user seated on the chair; a conversion part configured to convert a position of the robot arm with respect to the body part; a driving part configured to articulate the robot arm with respect to the body part; and a controller configured to detect a change in a position of the robot arm and control a left or right driving mode of the driving part according to the position of the robot arm. In accordance with such a configuration, the exoskeleton-type rehabilitation robot system of the present invention is provided integrally with a chair, thereby having excellent space utilization. In addition, the user's initial preparation for rehabilitation training is simple, which can improve efficiency.

Abstract: The present disclosure relates to a preparation method of a super absorbent polymer non-woven fabric and super absorbent polymer fibers prepared therefrom. According to the preparation method of the present disclosure, it is possible to provide super absorbent polymer fibers exhibiting high flexibility and fast absorption rate in the form of long fibers.

Abstract: A method for producing an aqueous solution containing nickel or cobalt includes: (A) a leaching step, which includes a first atmospheric pressure heating leaching step and a second atmospheric pressure heating leaching step, in which a raw material is heated and leached under an atmospheric pressure to form a leachate solution containing nickel, cobalt, and impurities; (B) a first extraction step of separating the leachate solution into a first filtrate containing nickel and impurities and a first organic layer containing cobalt and impurities by adding a first solvent extractant to the leachate solution; (C-i) a precipitation removal step of precipitating and removing impurities including magnesium, calcium, or a mixture thereof by adding a precipitating agent to the first filtrate; and (D-i) a target material precipitation step of selectively precipitating a nickel cake containing nickel by adding a neutralizing agent to the first filtrate.