Abstract: A quantum dot including a core comprising a first semiconductor nanocrystal including a zinc chalcogenide and a semiconductor nanocrystal shell disposed on the surface of the core and comprising zinc, selenium, and sulfur. The quantum dot does not comprise cadmium, emits blue light, and may exhibit a digital diffraction pattern obtained by a Fast Fourier Transform of a transmission electron microscopic image including a (100) facet of a zinc blende structure. In an X-ray diffraction spectrum of the quantum dot, a ratio of a defect peak area with respect to a peak area of a zinc blende crystal structure is less than about 0.8:1. A method of producing the quantum dot, and an electroluminescent device including the quantum dot are also disclosed.

Abstract: Disclosed herein are an apparatus and method for retrieving on-chain data based on an index. The apparatus includes memory in which at least one program is recorded and a processor for executing the program. The program may include a blockchain connection manager for recording data in at least one node or retrieving data from at least one node and outputting the same by being connected to a blockchain network formed of multiple nodes, a blockchain index manager for creating and managing an index for data stored in at least one node, and a query engine for requesting storage of data resulting from a transaction in a corresponding node through the blockchain connection manager, creating an index on the stored data by interworking with the blockchain index manager, and acquiring and outputting data that is retrieved based on the index through the blockchain connection manger in response to a retrieval request.

Abstract: The present invention provides a battery rack including: a housing; a plurality of battery modules stacked in the housing; and a connection member configured to electrically connect the plurality of battery modules, wherein each of the plurality of battery modules includes a plurality of battery submodules stacked on each other, and each of the plurality of battery submodules comprises: at least one cooling member; and a plurality of battery cells located on both sides with the at least one cooling member interposed therebetween, wherein at least two of the plurality of battery cells are located on each of both sides of the at least one cooling member.

Abstract: A cathode for a lithium secondary battery includes a cathode current collector, and a cathode active material layer formed on the cathode current collector. The cathode active material layer includes a cathode active material and a conductive material ID/IG is in a range from 0.5 to 1.25 in a Raman spectrum of the cathode active material layer. The cathode active material includes lithium metal oxide particles containing nickel and manganese and having a content of cobalt of less than 2 mol % among all elements except for lithium and oxygen.

Abstract: A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.

Abstract: A display device includes a display panel including a first non-folding area, a second non-folding area, and a folding area that are arranged along a first direction, the folding area being foldable along a folding line extending along a second direction intersecting the first direction, a panel lower member disposed below the display panel, and a digitizer disposed below the panel lower member and including a base layer and sensing coils. The base layer includes a folding portion including holes overlapping the folding area of the display panel and first and second non-folding portions disposed along the first direction. The folding portion is disposed between the first and second non-folding portions. The sensing coils are disposed on the base layer, and the base layer includes a matrix including a filler and an elastomer and weaving-shaped fiber lines disposed inside the matrix and alternately arranged with each other.

Abstract: A dual polarization antenna is disclosed in at least one embodiment of the present disclosure, including a base substrate, a power feeding unit supported on the base substrate, and a radiating plate supported on the power feeding unit, the power feeding unit includes a first feeding substrate and a second feeding substrate arranged to cross each other on the base substrate, the first feeding substrate includes a first feed line configured to supply a first reference phase signal to a first point on the radiating plate and to supply a first reverse phase signal having a reverse phase relative to the first reference phase signal, to a second point on the radiating plate, the second feeding substrate includes a second feed line configured to supply a second reference phase signal to a third point on the radiating plate and to supply a second reverse phase signal having a reverse phase relative to the second reference phase signal, to a fourth point on the radiating plate, and wherein the first feeding substrate

Abstract: The present disclosure relates to a phase shifter and a communication device including the same, and particularly, to a phase shifter including a base panel; a fixed substrate which is laminated and fixed on one side or another side on the base panel and has a plurality of circuit patterns printed on the top surface thereof; and a phase shift switching part provided with a plurality of movable substrates including movable strip terminal which are in contact with the plurality of circuit patterns of the fixed substrate, wherein the phase shift switching part is configured to reciprocate the plurality of movable substrates within a predetermined distance in a horizontal direction on the base panel to change the positions of contact points of the movable substrates with respect to the circuit patterns, wherein the phase shift switching part moves the plurality of movable substrates while elastically supporting the plurality of movable substrates toward the circuit patterns, thereby providing an advantage of maxi

Abstract: The present inventive concept relates to: a radiation detector including a bendable radiation detecting panel and a radiation inspection apparatus including same. The radiation detector includes: a radiation detecting panel which is flexible, extending in a first direction, and detecting radiation incident to a first face; and a bending support unit which is plate-shaped, provided on a second face of the radiation detecting panel opposite to the first face to support the radiation detecting panel, and having a flexibility. The flexibility of the bending support unit is less than a flexibility of the radiation detecting panel.

Abstract: The disclosure relates to a tobacco material including a natural flavor material and a method of preparing the tobacco material. The tobacco material may have a core-shell structure in which a core includes a natural flavor material and is surrounded by a shell including a tobacco mixture, such that the aerosol generating article including the tobacco material generates a characteristic flavor.

Abstract: A positive electrode active material including a first lithium composite oxide particle including a secondary particle formed by aggregation of one or more primary particles, and a coating oxide occupying at least a part of at least one of surfaces of the secondary particle, grain boundaries between the primary particles, or surfaces of the primary particles, the positive electrode active material satisfying an equation of 1.3?a/b?3.0, wherein a represents a max peak intensity at 2theta=44.75° to 44.80° and b represents a max peak intensity at 2theta=45.3° to 45.6° in X-ray diffraction (XRD) analysis using Cu K? radiation.

Abstract: A method of transmitting a Physical Layer Convergence Procedure (PLCP) frame in a Very High Throughput (VHT) Wireless Local Area Network (WLAN) system includes generating a MAC Protocol Data Unit (MPDU) to be transmitted to a destination station (STA), generating a PLCP Protocol Data Unit (PPDU) by adding a PLCP header, including an L-SIG field containing control information for a legacy STA and a VHT-SIG field containing control information for a VHT STA, to the MPDU, and transmitting the PPDU to the destination STA. A constellation applied to some of Orthogonal Frequency Division Multiplex (OFDM) symbols of the VHT-SIG field is obtained by rotating a constellation applied to an OFDM symbol of the L-SIGfield.

Abstract: A substrate supporting plate that may prevent deposition on a rear surface of a substrate and may easily unload the substrate. The substrate supporting plate may include a substrate mounting portion and a peripheral portion surrounding the substrate mounting portion. An edge portion of a top surface of the substrate mounting portion may be anodized. A central portion of the top surface of the substrate mounting portion may not be anodized.

Abstract: Disclosed is a method of predicting a block vector in a multi-view image, the method including allowing an encoder to determine a reference block of a reference image for a specific block of a depth image or a specific-view image among multi-view images, allowing the encoder to determine block vector information for intra block copy (IBC) of the specific block on the basis of a block vector of the reference block when the reference block is encoded using the IBC, and allowing the encoder to encode the block vector information of the specific block. The reference image of the specific view is an image of another view, and the reference image of the depth image is a texture image corresponding to the depth image.

Abstract: A wireless device generating a High-Efficiency (HE) PHY Protocol Data Unit (PPDU) for transmission sets a Packet Extension Disambiguity bit of an HE Signal-A (HE-SIG-A) field of the HE PPDU based on respective durations of a packet extension of the HE PPDU and a signal extension of the HE PPDU. The wireless device may determine whether a relationship T P ? E + ( 4 × ? TXTIME - T S ? E - 2 ? 0 4 ? - ( TXTIME - T S ? E - 2 ? 0 ) ) ? T S ? Y ? M is satisfied, where TPE is the duration of the packet extension, TXTIME is a transmission time of the HE PPDU, TSE is the duration of the signal extension, and TSYM is a duration of symbols in a data field of the HE PPDU. The wireless device may set the Packet Extension Disambiguity bit to one when the relationship is satisfied; and to zero when the relationship is not satisfied.

Abstract: One or more embodiments relate to an aerosol generating article including: a first portion including an aerosol generating element; a second portion including a cooling element; a third portion including a tobacco element; and a fourth portion including a filter element, wherein the first through fourth portions are sequentially arranged in a longitudinal direction of the aerosol generating article.

Abstract: A method for screening a functional material according to the present invention comprises steps of: treating a linker material-coated substrate with a capture protein; treating the capture protein-treated substrate with a functional material candidate; treating the functional material candidate-treated substrate with biotin-conjugated IgE; and treating the biotin-bound IgE-treated substrate with fluorescently labeled streptavidin.

Abstract: The present disclosure relates to an offset elimination operation of an internal operational amplifier of a data driving circuit and relates to a technique that applies different offset elimination methods for each position of an operational amplifier.

Abstract: A secondary battery includes an electrode assembly having a positive electrode provided with a positive electrode tab, a separator, and a negative electrode provided with a negative electrode tab, the positive electrode, the separator, and the negative electrode being wound, the electrode assembly having a core part at a center thereof; a can configured to receive the electrode assembly therein, the negative electrode tab being connected to the can; a cap assembly coupled to an opening of the can, the positive electrode tab being connected to the cap assembly; and a reinforcing member provided on an end of the separator exposed beyond the positive electrode or the negative electrode to prevent heat of the positive electrode tab or the negative electrode tab from being transferred to the separator.

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit of this disclosure includes a driving element including a first electrode connected to a first node to which a pixel driving voltage is applied, a gate electrode connected to a second node, and a second electrode connected to a third node, and configured to supply an electric current to a light emitting element; a first switch element configured to be turned on according to a gate-on voltage of a scan pulse to supply a data voltage to the second node; and a second switch element configured to be turned off according to a gate-off voltage of a light emitting control pulse generated in antiphase of the scan pulse.