Abstract: A positive electrode active material including at least one secondary particle comprising an agglomerate of primary macro particles is provided. A method for preparing the same and a lithium secondary battery containing the same are also provided. The positive electrode active material contains secondary particle with improved resistance by simultaneous growth of the average particle size D50 and the crystal size of the primary macro particle. The positive electrode active material has high crystal density and improved life and resistance characteristics by ensuring the movement path of lithium ions and minimizing defects in the crystal structure of the positive electrode active material.

Abstract: A catalyst for preparing a synthesis gas includes: a mesoporous Al2O3 support including mesopores having a pore size of about 1 nm to about 30 nm; metal nanoparticles supported in the mesopores of the mesoporous Al2O3 support wherein the metal nanoparticles have a particle size of less than or equal to about 20 nm; and a metal oxide coating layer including particles wherein the metal oxide coating layer is coated on the surface of the mesoporous Al2O3 support and includes mesopores having a pore size of about 2 nm to about 50 nm.

Abstract: A display device determines a target temperature based on an average luminance of each of the panel blocks, calculates a temperature change amount of each of the panel blocks by multiplying a difference between the target temperature and a previous prediction temperature of each of the panel blocks determined before a reference period by a block temperature coefficient of the panel blocks, and calculates a current prediction temperature of each of the panel blocks by adding the temperature change amount of each of the panel blocks to the previous prediction temperature of each of the panel blocks, the panel blocks include a first panel block and second panel blocks adjacent to the first panel block, and the block temperature coefficient of the first panel block is determined based on the target temperature of the first panel block and the target temperature of each of the second panel blocks.

Abstract: Disclosed is a method for preparing a synthesis gas. The method may include performing a combined reforming reaction by injecting a reaction gas including water (H2O) and heat-treating it in the presence of the catalyst. The catalyst may include a mesoporous support including regularly distributed mesopores, metal nanoparticles supported on the support, and a metal oxide coating layer coated on a surface of the support.

Abstract: The present disclosure provides a method of preparing a catalyst for synthesizing dimethyl ether or methylacetate from synthetic gas that includes preparing a nanosheet ferrierite zeolite (FER), and co-precipitating the nanosheet ferrierite zeolite and a precursor of a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/FER catalyst.

Abstract: A lithium secondary battery and a method of manufacturing the lithium secondary battery are provided. In the lithium secondary battery, a positive electrode additive represented by Formula 1 as an irreversible additive is included in a positive electrode mixture layer, and a ratio (CC/DC) of an initial charge capacity (CC) to an initial discharge capacity (DC) is adjusted within a specific range, thereby reducing the amount of oxygen gas generated in the charging/discharging of the lithium secondary battery, and at the same time, inhibiting self-discharging and improving an operating voltage by improving the open circuit voltage of the battery in initial activation and/or subsequent high-temperature storage. The lithium secondary battery including the same can be effectively used as a power source for mid-to-large devices such as electric vehicles.

Abstract: The present disclosure relates to a ternary catalyst coated with a metal oxide, the ternary catalyst including: a ternary catalyst core including a hydrotalcite support and metal particles dispersed on the support; and a metal oxide shell formed on the ternary catalyst core.

Abstract: Provided are a positive electrode active material comprising at least one secondary particle comprising an agglomerate of primary macro particles, a method for preparing the same and a lithium secondary battery comprising the same. Further provided is a positive electrode active material comprising secondary particles with improved resistance by simultaneously growing the average particle size (D50) and the crystal size of the primary macro particles. Thus, it is possible to provide a nickel-based positive electrode active material with high press strength, long life and good gas performance.

Abstract: A display device and a method of driving the same are provided. The method of driving the display includes a display area to display an image. The method includes performing a first first pixel shift driving by shifting an image by a first range in the display area without loss of image information due to enlargement or reduction of the image, checking whether a change of a block grayscale value is greater than or equal to a threshold in an interest area in the display area, and performing second pixel shift driving by shifting an image having the loss of image information.

Abstract: The present technology provides a positive electrode for a lithium secondary battery and a lithium secondary battery including the same. In the positive electrode, a positive electrode additive represented by Formula 1 is contained in a positive electrode mixture layer, and specific X-ray diffraction (XRD) and/or extended X-ray absorption fine-structure (EXAFS) peak(s) are controlled for cobalt remaining in the positive electrode mixture layer after initial charging to SOC 100% to have a specific oxidation number, thereby reducing side reactions caused by the irreversible additive, that is, the positive electrode additive, and reducing the amount of gas such as oxygen generated during charging/discharging. Therefore, the lithium secondary battery has an excellent effect of improving battery safety and electrical performance.

Abstract: A two-dimensional perovskite material, a dielectric material including the same, and a multi-layered capacitor. The two-dimensional perovskite material includes a layered metal oxide including a first layer having a positive charge and a second layer having a negative charge which are laminated, a monolayer nanosheet exfoliated from the layered metal oxide, a nanosheet laminate of a plurality of the monolayer nanosheets, or a combination thereof, wherein the two-dimensional perovskite material a first phase having a two-dimensional crystal structure is included in an amount of greater than or equal to about 80 volume %, based on 100 volume % of the two-dimensional perovskite material, and the two-dimensional perovskite material is represented by Chemical Formula 1.

Abstract: An assembly for measuring bio-information includes a finger contact interface configured to move based on a contact force applied by a finger of a user to the finger contact interface; a bio-sensor configured to measure the bio-information of the user based on the finger being in contact with the finger contact interface; a force sensor configured to measure the contact force of the finger applied to the finger contact interface; and a support configured to guide movement of the finger contact interface and support the force sensor against the finger contact interface.

Abstract: A battery module includes: a plurality of battery cells mutually laminated in a first direction and forming a laminated structure; a pair of end plates being in surface contact with a first and a second ends of the laminated structure in the first direction; and a pair of busbar assemblies disposed at the first and the second ends of the laminated assembly in a second direction perpendicular to the first direction, each bus bar assembly of the pair of bus bar assemblies including a busbar configured to mutually join electrodes of the plurality of battery cells located at the first and the second ends of the laminated structure in the second direction, a circuit board on which an electrical connection to the busbar is formed, and a connector installed on the circuit board and electrically connected to the busbar assembly through the circuit board.

Abstract: A memory device, a memory system, and a method of operating the same. The memory device includes a memory cell array including a plurality of memory cells and a write command determination unit (WCDU) that determines whether a write command input to the memory device is (to be) accompanied a masking signal. The WCDU produces a first control signal if the input write command is (to be) accompanied by a masking signal. A data masking unit combines a portion of read data read from the memory cell array with a corresponding portion of input write data corresponding to the write command and generates modulation data in response to the first control signal. An error correction code (ECC) engine generates parity of the modulation data.

Abstract: The present disclosure relates to a roasting apparatus and a method of controlling the roasting apparatus, and more particularly, to a roasting apparatus for roasting objects while stirring the objects in a roasting chamber, and a method of controlling the roasting apparatus. An roasting apparatus for heating objects according to the present disclosure includes a roasting chamber part which includes: a cylindrical roasting chamber that extends in a vertical direction and has an internal space in which the objects are stirred; and a rotary stirring part that rotates to stir the objects received in the roasting chamber and rotates about a stirring axis defined in the vertical direction. The roasting apparatus further includes heat source parts which supply heat to the roasting chamber part.

Abstract: A display apparatus capable of correcting an image quality change caused by long-term use is provided. The display apparatus includes: a display panel; a communicator configured to communicate with a service apparatus; and a controller configured to control the communicator to transmit operation information including a total operating time of the display apparatus and an operating temperature of the display apparatus, to the service apparatus; receive an image parameter from the service apparatus through the communicator, and based on the received image parameter data; process image data; and transmit the processed image to the display panel. The image parameter may include at least one of a brightness level, a contrast, a sharpness level, and a color density of the display panel.

Abstract: A positive electrode active material, a lithium secondary battery including the same, and a method of making the same are disclosed herein. In some embodiments, a positive electrode active material includes secondary particles, each secondary particle comprising an agglomerate of primary macro particles, wherein an average particle size (D50) of the primary macro particles is 1.5 ?m or more, wherein a part of a surface of each secondary particle is coated with a cobalt compound and an aluminum compound, an average particle size (D50) of the secondary particles is 3 to 10 ?m, and wherein the primary macro particles comprises a nickel-based lithium transition metal oxide. It is possible to improve the electrical and chemical properties by partial coating of the secondary particles with cobalt and aluminum on the surface. It is possible to provide a nickel-based positive electrode active material with improved stability at high temperature and high voltage.

Abstract: Provided herein is a memory device and a method of operating the same. The memory device includes a plurality of memory blocks, each including a plurality of memory cells, and a peripheral circuit configured to perform program operations, read operations and erase operations on the plurality of memory blocks. The memory device also includes control logic configured to, when the read operation is performed on any one of the plurality of memory blocks, set a channel initialization time used to initialize channels of memory cells included in the one memory block based on an inhibition count value indicating a number of times that a corresponding operation is inhibited from being performed on the one memory block, and control the peripheral circuit so that the channels are initialized during the channel initialization time before the read operation is performed.

Abstract: A conditioning device includes: an ejector for ejecting steam to a rotating polishing pad; and an ejector support supporting the ejector. The ejector includes a plurality of nozzles for ejecting the steam to the polishing pad and a nozzle heater for heating the plurality of nozzles. The nozzle heater is configured to heat nozzles disposed to correspond to a peripheral region of the polishing pad, among the plurality of nozzles, to a higher temperature than nozzles disposed to correspond to a central region of the polishing pad among the plurality of nozzles.

Abstract: A battery module includes a plurality of battery cells stacked on one another in a first direction, hot melt being coated and fixing between at least some battery cells of the plurality of battery cells, and a pair of end plates that surface-contact with opposite end battery cells of a stacked structure in which the plurality of battery cells is stacked and fix a distance therebetween.