Abstract: A method for synthesizing carbon nanotubes using a nanoparticle catalyst prepared by vaporizing a catalyst raw material using plasma and then condensing the vaporized catalyst raw material is disclosed. The production method of the present disclosure can make the synthesized carbon nanotubes have high crystallinity; and facilitate their mass synthesis.

Abstract: A membrane-electrode assembly with improved durability is provided. An embodiment of the present invention provides a membrane-electrode assembly comprising: a polymer electrolyte membrane having concavo-convex portions on at least one surface thereof and a catalyst layer disposed on the polymer electrolyte membrane, wherein the catalyst layer includes a first catalyst layer loaded into the inside of the concavo-convex portion and a second catalyst layer disposed on the polymer electrolyte membrane, the first catalyst layer being interposed between the polymer electrolyte membrane and the second catalyst layer.

Abstract: In an embodiment, a cathode active material can include a lithium oxide having a disordered rocksalt (DRX) structure, and the lithium oxide is configured to phase-transform from the DRX structure into a spinel-like structure during charging so as to alleviate and/or prevent rate capability decrease and irreversible voltage drop caused by lithium and manganese existing in excess in the lithium oxide, and a lithium secondary battery embodiment including the same.

Abstract: A fault diagnostic system of an air spring brake chamber for vehicles according to an embodiment includes a pressure measurement unit configured to measure a pressure in each of a parking chamber between a piston and an adaptor housing and a service chamber between the adaptor housing and a diaphragm; a brake lining temperature sensing unit connected to a brake lining to detect a temperature of the brake lining; and a notification unit configured to generate an alarm about an abnormal situation in the brake based on a pressure measurement value of the pressure measurement unit and a temperature measurement value of the lining temperature sensing unit.

Abstract: A two-way openable console includes side lid portions located on left and right sides of the console, a center lid portion located between the side lid portions to be open about one end portion in a longitudinal direction, a button unit located on each of front and rear end portions of the center lid portion, a rotation unit rotated about a center shaft in response to an input of the button unit, hinge units located on first and second end portions of the center lid portion and configured so that the rotation unit is rotated in response to an input of the button unit and thereby center shafts protruding to the side lid portions are selectively retracted into the center lid portion, and a catch unit located adjacent to each of the hinge units and integrally retracted in response to driving of each of the center shafts.

Abstract: Provided in one embodiment of the present invention is a difluorophosphate preparation method comprising the steps of: injecting, into a reactor, a phosphorus compound, a nonaqueous solvent, and an alkali metal salt, which is a phosphate, borate, oxide or hydroxide of an alkali metal, thereby generating dichlorophosphate; injecting an ammonium-containing fluorinating agent into the dichlorophosphate, thereby preparing a reaction product; and removing impurities from the reaction product and obtaining difluorophosphate.

Abstract: Provided is a cage to be inserted into vertebrae. The cage configured to reduce a risk of organs, muscles, and nerves being injured during an insertion surgery process and to allow the insertion surgery process to be easily performed. To this end, the present invention provides a cage including a leading insertion portion which is inserted from the front of vertebrae to be in position between the vertebrae and a following insertion portion which is coupled to one surface of the leading insertion portion to be in position between the vertebrae. According to the present invention, there are effects of reducing a risk of organs, muscles, and nerves being injured during a surgery process of inserting the cage, facilitating the surgery process of inserting the cage, reducing post-surgery side effects by stably fixing the cage, and reducing a surgery time to reduce a burden to a patient.

Abstract: A vehicle lighting system in the interior of a vehicle adjusts the radiation area, the brightness, and the color temperature of light depending on the behavior, state, and posture of the passenger, so as to improve passenger convenience and upgrade interior lighting.

Abstract: The present disclosure relates to an apparatus and a method for estimating a state of an object to be heated based on sound which is generated when the object to be heated is heated, and providing the estimated information to other devices in an Internet of Things (IoT) environment through a 5G communication network. The heating apparatus may include a housing having a receiving space therein, a heating member disposed within the housing, a power supplier for supplying power to the heating member, a top plate disposed on the top of the housing to support the object to be heated, a sound sensor disposed on the bottom of the top plate, and a controller for predicting the state of the object to be heated by using a deep neural network model that has been trained through machine learning based on a sound signal received from the sound sensor.

Abstract: The present disclosure relates to a solid electrolyte membrane for an all-solid-state battery and a battery including the same. The battery may include lithium metal as a negative electrode active material. The solid-electrolyte membrane provides an effect of inhibiting growth of lithium dendrite by ionizing lithium deposited as metal. Therefore, when using lithium metal as a negative electrode in the all-solid-state battery including the solid electrolyte membrane, there is provided an effect of delaying and/or inhibiting growth of lithium dendrite. Thus, it is possible to effectively prevent an electrical short-circuit caused by growth of lithium dendrite.

Abstract: This disclosure provides a novel magnetic nanoparticle-assisted genome editing (MAGE) platform, which significantly improves transfection efficiency and biocompatibility in stem cells as well as the efficiency of CRISPR-Cas systems. Due to the great potential of CRISPR-Cas systems, the disclosed MAGE platform can be used for a host of applications in stem cell therapy for genetic disorders.

Abstract: A display device includes a first substrate including an emission area and a non-emission area; a first pixel electrode positioned on the emission area of the first substrate; a first light emitting structure positioned on the first pixel electrode and including quantum dots; a pixel defining layer positioned on the non-emission area of the first substrate and positioned on the first pixel electrode; a common electrode covering the first light emitting structure and the pixel defining layer; and an encapsulation structure positioned on the common electrode and in contact with the common electrode such that the encapsulation structure overlaps the non-emission area. The encapsulation structure may include a second substrate and a hydrogen donor layer positioned between the second substrate and the common electrode. The hydrogen donor layer may overlap the emission area and may be in contact with or spaced apart from the common electrode.

Abstract: Provided is a method for preparing a recycled ABS resin including: preparing an extrusion feed including an acrylonitrile butadiene styrene (ABS) base resin including polyurethane and a metal carboxylic acid salt or a hydrate of the metal carboxylic acid salt, and supplying the extrusion feed to an extruder to perform a depolymerization reaction of the polyurethane and extrude the extrusion feed, wherein a master index (M) value satisfies 0.2?M?0.6.

Abstract: A method and an apparatus estimate a distance of an object based on a static object and a difference in ground height. The method includes processing an image captured by an image capture means to obtain an object recognition result for an object and a space recognition result for a space. The method includes detecting a static object on a first ground higher than a second ground of a host vehicle based on the object recognition result and the space recognition result. The method includes estimating a height of the first ground based on the static object and includes estimating a distance value of the object included in the object recognition result based on the height of the first ground.

Abstract: A semiconductor memory device and electronic system including the same are provided. The semiconductor memory device may include a first stacked structure including a plurality of first interlayer insulating films, a second stacked structure including a plurality of second interlayer insulating films on the first stacked structure, and a hole that extends into the first stacked structure and the second stacked structure. The plurality of second interlayer insulating films may include a plurality of first films that include first impurities, and a plurality of second films that are free of the first impurities.

Abstract: Provided is an etchant composition for a semiconductor substrate which may selectively etch a high-concentration doped layer of an extrinsic semiconductor, and according to the present disclosure, an etchant composition for a semiconductor substrate which, in etching an extrinsic semiconductor substrate including doped layers having different doping concentrations, may etch the high-concentration doped layer at a high selection ratio, and suppress bubble formation during an etching process to allow uniform and stable etching, an etching method using the same, and a manufacturing method of a semiconductor substrate may be provided.

Abstract: A method of preparing a conductive composite includes immersing a porous base material in a conductive coating solution, and drying the conductive coating solution on the porous base material to form a conductive coating layer on the porous base material. The conductive coating solution includes conductive particles and a solvent, and the surface tension of the solvent is lower than the surface tension of the porous base material by 8 mN/m or more, and a conductive composite is prepared therefrom.

Abstract: According to the present invention, when preparing a hydrogenation catalyst including nickel as an active ingredient, the reduction of nickel can be facilitated by using copper and sulfur as a promoter. In particular, the present invention can provide a catalyst which, while having a high nickel content, includes sulfur oxide and nickel oxide in a particular range, and thus exhibits even higher selective reduction degree for olefins while having high activity of the catalyst.

Abstract: A slide transfer device for a vehicle includes a first rail portion fixed to a vehicle body, a second rail portion rail-coupled to the first rail portion to slide in the front and rear direction and coupled to a movement guide protruding from the first rail portion, and a damper mounted in a mounting hole formed in the second rail portion and configured to support the movement guide inserted into the mounting hole of the second rail portion.

Abstract: A scrolling method and apparatus devices having display screens such as a mobile terminal. When a first image on a screen cannot be moved in a direction by a touch input, a region of the first image is modified in response to the touch input and the modified image is subsequently restored to the first image after the touch is released or a preset amount of time passes. The modification of the region of the image provides an indication that is fed back to the user so that the end or last part of the image is displayed and cannot be moved further, so that undesired repetitive touch input can be prevented.