Abstract: Provided are a hybrid metallocene catalyst comprising a first transition metal compound represented by Formula 1; and a second transition metal compound represented by Formula 2, which is useful in the preparation of a polyethylene exhibiting a high dart drop impact strength property along with excellent processability, and a method of preparing the polyethylene using the same: wherein Formulas 1 and 2 are described herein.

Abstract: A method for manufacturing a conductive paste, includes: an operation of forming a first mixture including a metal powder, a dispersant, and a hydrophobic solvent; an operation of forming a second mixture including a hydrophilic binder and a hydrophilic solvent; and an operation of forming a third mixture by mixing the first and second mixtures.

Abstract: A foldable chair includes a first frame; a second frame disposed in parallel with the first frame; a connection portion configured to movably connect the first frame and the second frame and change in length based on movement between the first frame and the second frame; a seat accommodation portion disposed on one of the first frame or the second frame; and a seat portion. In particular, at least a portion of the seat portion is accommodated in the seat accommodation portion, and the seat portion is configured to be drawn out from the seat accommodation portion and detachably fastened to the other of the first frame or the second frame.

Abstract: A substrate processing apparatus includes a process chamber having a space in which a substrate is disposed and processed in the process chamber, a supporter disposed in the process chamber and configured to support and rotate the substrate, a heater disposed in the process chamber and configured to heat a first surface of the substrate, where the heater includes one or more irradiation modules for generating light pulses and directing the light pulses to the first surface of the substrate, a controller configured to control an intensity of the light pulse generated by each of the one or more irradiation modules of the heater, and a fluid supplier configured to supply fluid to the first surface of the substrate.

Abstract: The present disclosure to an electrolyte membrane containing a polyfluorene-based ionomer, and more particularly, to an electrolyte membrane containing a polyfluorene-based ionomer which has a fluorene main chain composed of only a carbon-carbon bond and a side chain composed of a perfluorosulfonic acid group. The electrolyte membrane containing the polyfluorene-based ionomer has high proton conductivity, excellent chemical durability, excellent mechanical property, and excellent volume stability.

Abstract: A display device includes a timing controlling part generating an image data, a data control signal and a gate control signal; a data driving part generating a data voltage using the image data and the data control signal; a gate driving part generating a gate voltage using the gate control signal; a display panel including a plurality of subpixels and displaying an image using the data voltage and the gate voltage; and a plurality of first MUX switches and a plurality of second MUX switches sequentially transmitting the data voltage to two of a same color among the plurality of subpixels.

Abstract: A method of estimating hemoglobin concentration, may comprise: receiving a skin image of a subject; determining a formula into which the skin image is introduced; and estimating a hemoglobin concentration of the subject by introducing the skin image into the determined formula.

Abstract: Disclosed is a method of preparing ethylene vinyl acetate including adding a monomer containing ethylene and vinyl acetate and a solvent containing alkyl acetate to a reactor and performing polymerization.

Abstract: The hybrid supported metallocene catalyst according to the present disclosure comprises at least one first metallocene compound selected from compounds represented by the following Chemical Formula 1; and at least one second metallocene compound selected from compounds represented by the following Chemical Formula 3, and exhibits high activity in propylene polymerization and is useful for preparing polypropylene having high melt tension through the introduction of long chain branches (LCB) into polypropylene molecules, and a method for preparing a polypropylene using the same, wherein all the variables are described herein.

Abstract: A rear seat apparatus for a vehicle includes a back frame and a cushion frame. The back frame is not interlocked with the cushion frame and is individually rotated in the forward-and-rearward direction independently of the cushion frame. The cushion frame is not interlocked with the back frame and individually slides in the forward-and-rearward direction independently of the back frame. A front seating state and a rear seating state of a passenger are implemented through individual sliding movement of the cushion frame in the forward-and-rearward direction.

Abstract: A method of manufacturing a multilayer ceramic electronic component includes: preparing a dielectric magnetic composition including base material powder particles including BaTi2O5 or (Ba(1-x)Cax)Ti2O5 (0?x?0.1), the base material powder particles having surfaces coated with one or more of Mg, Mn, V, Ba, Si, Al and a rare earth metal; preparing ceramic green sheets using dielectric slurry including the dielectric magnetic composition; applying an internal electrode paste to the ceramic green sheets; preparing a green sheet laminate by stacking the ceramic green sheets to which the internal electrode paste is applied; and preparing a ceramic body including dielectric layers and a plurality of first and second internal electrodes arranged to face each other with each of the dielectric layers interposed therebetween by sintering the green sheet laminate.

Abstract: A power semiconductor device includes: a semiconductor layer; a well region positioned inside the semiconductor layer and having a first conductive type; a source region positioned on the well region and having a second conductive type; a gate region making contact with a side surface of the well region to surround the well region; and a drift region making contact with bottom surfaces of the well region and the gate region and having the second conductive type. The drift region may include a protrusion region extending from the drift region and making contact with another side surface of the well region.

Abstract: A semiconductor chip includes a substrate. a device layer and an interconnection layer sequentially on the substrate, and a bonding pad on the interconnection layer. A bottom surface of the bonding pad may be located at a constant level, and a side surface of the bonding pad may have a roughened shape.

Abstract: A semiconductor package includes: a first semiconductor chip including a first substrate and a first through electrode passing through the first substrate, wherein the first substrate has a first active surface and a first non-active surface; a chip structure including a plurality of second semiconductor chips stacked on the first semiconductor chip, wherein each second semiconductor chip includes a second substrate and a second through electrode passing through the second substrate; and a third semiconductor chip disposed on the chip structure, and including a third substrate, wherein the first substrate has a first width and a first thickness, wherein the second substrate has a second width and a second thickness, and the third substrate has a third width and a third thickness, wherein the third thickness is thicker than the second thickness, and the third width is greater than the second width.

Abstract: A signal generation apparatus includes a glitch rejection circuit including n m-stage inverters coupled in series, and configured to receive an input signal and perform an inverting operation on the input signal, based on a plurality of voltage signals, to generate an output signal and adjust switching threshold voltages of the m-stage inverters, based on the plurality of voltage signals, to generate the glitch-removed output signal, when a glitch occurs in the input signal, a level detection circuit to detect a logic level of the output signal provided from the glitch rejection circuit to generate a level detection signal and a complementary level detection signal, and a voltage signal generation circuit configured to receive the input signal, a complementary input signal, the level detection signal, and the complementary level detection signal to generate the plurality of voltage signals and provide the plurality of voltage signals to the glitch rejection circuit.

Abstract: An armrest device for a vehicle includes a tray module configured to provide a cup holder function, an article storage function, and a table function; a frame module configured to enclose a periphery of the tray module and coupled to a rear seat of the vehicle; and a cover module configured to cover the tray module. The armrest device enables implementation of an arm rest function for allowing a passenger to put an arm on an armrest, as well as the cup holder function, the article storage function, and the table function utilizing a first slide cover having no vertically-extending hole, and a second slide cover formed with a cup holder hole.

Abstract: Disclosed herein is a battery cell packaging device. The battery cell packaging device can include a supply part supplying an insulating tape, an image acquisition part for photographing at least one of the insulating tape or a welded portion, an adsorption part including an adsorption member for adsorbing the supplied insulating tape and packaging the welded portion with the adsorbed insulating tape, and a cutting part for cutting the insulating tape adsorbed on the adsorption member from the supply part. The adsorption member can include a first adsorption block, and a second adsorption block foldably connected to the first adsorption block.

Abstract: Disclosed is a method of controlling a display device displaying an image using a lens, the method including storing a lens distortion parameter for chromatic aberration correction, receiving image data, primarily calculating a distance between a center point and a current pixel, secondarily calculating a distortion correction weight in consideration of the distance, and outputting image data of the current pixel through calculation according to the calculated distortion correction weight without using the stored lens distortion parameter intactly.

Abstract: An ultrasound mask according to an embodiment comprises a plurality of interconnection wirings comprising first wirings arranged in a first direction and second wirings arranged in a second direction different from the first direction, each of the first and second wirings being disposed between piezoelectric members, wherein the interconnection wirings come in contact with a protective layer.

Abstract: A method for manufacturing a multilayer ceramic capacitor including an operation of preparing a ceramic green sheet; an operation of forming a conductive paste on the ceramic green sheet; an operation of forming a ceramic laminate by stacking a ceramic green sheet on which the conductive paste is formed; an operation of sintering the ceramic laminate; and an operation of forming an external electrode on an exterior of the ceramic laminate, wherein the conductive paste includes a first mixture including a metal powder, a dispersant, and a hydrophobic solvent and a second mixture including a hydrophilic binder and a hydrophilic solvent, the conductive paste being an emulsion in which the first mixture is dispersed in the second mixture.