Abstract: A transmission apparatus of a single carrier-based wireless communication system is proposed. The transmission apparatus may include a transceiver, a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory. The processor may generate data symbols by modulating traffic data, generate a cyclic prefix (CP) on the basis of the data symbols, and generate a pilot symbol for the data symbol. The transceiver may transmit a single carrier frequency domain equalizer (SC-FDE) frame including the data symbol, the CP, and the pilot symbol. The data symbols may include first data symbols and second data symbols. The pilot symbol may be transmitted after transmission of the first data symbols and before transmission of the second data symbols.

Abstract: The present invention relates to a device and a method for reconstructing three-dimensional oral scan data by using a computed tomography (CT) image. According to an embodiment of the present invention, reconstruction is performed by generating 3D coordinate information and 3D feature points from a CT image without geometric distortion and locally matching the CT image and scan key frames obtained from a scanner, so that errors due to accumulated matching of the scan key frames can be reduced, thereby reducing geometric distortion of an oral scan model.

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: 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 having excellent impact strength and haze properties, and a method of preparing the polyethylene using the same: wherein Formulas 1 and 2 are described herein.

Abstract: The present invention relates to a method of forming a plasma resistant oxyfluoride coating layer, including: mounting a substrate on a substrate holder provided in a chamber; causing an electron beam scanned from an electron gun to be incident on an oxide evaporation source accommodated in a first crucible, and heating, melting, and vaporizing the oxide evaporation source as the electron beam is incident on the oxide evaporation source; vaporizing a fluoride accommodated in a second crucible; and advancing an evaporation gas generated from the oxide evaporation source and a fluorine-containing gas generated from the fluoride toward the substrate, and reacting the evaporation gas generated from the oxide evaporation source and the fluorine-containing gas generated from the fluoride to deposit an oxyfluoride on the substrate.

Abstract: The present invention relates to polyolefin. More specifically, the present invention relates to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency, and such polyolefin has a density of 0.915 g/cm3 to 0.930 g/cm3 measured according to ASTM D1505; and has an ethylene sequence inhomogeneity (I) calculated by the following Equation 1 of 1.25 to 1.40, when analyzed by SSA (Successive Self-nucleation and Annealing): Inhomogeneity (I)=Lw/Ln??[Equation 1] in the Equation 1, Lw is weighted average (unit: nm) of ESL (Ethylene sequence length), and Ln is arithmetic mean (unit: nm) of ESL (Ethylene sequence length).

Abstract: A computing device and an operating method of the computing device based on a spiking neural network (SNN) are disclosed. The computing device includes a pulse generator configured to generate a pulse corresponding to an input spike signal; an SNN including layers of spiking neurons each generating an output spike signal by applying the pulse to a neuron model; and a loss circuit module configured to calculate a loss value based on a potential value accumulated by the output spike signal generated for each of the layers and backpropagate the loss value to the SNN.

Abstract: An exemplary embodiment of the present invention provides an apparatus for producing fermented soybean meal, which produces fermented soybean meal for monogastric animals and ruminant selectively or together.

Abstract: This invention relates to polyolefin. More specifically, this invention relates to polyolefin that has small copolymer content, but exhibits excellent mechanical properties.

Abstract: Provided herein may be a memory device and a method of operating the same. The memory device may include a memory block including strings, each including first memory cells coupled between a first dummy cell and a second dummy cell and second memory cells coupled between third dummy cell and fourth dummy cell, and a peripheral circuit performing a normal program operation on first and second memory cells, or a soft program operation on first to fourth dummy cells, wherein the peripheral circuit is configured to, perform a soft program operation on the fourth dummy cell which is farthest from an area to which the precharge voltage is applied and perform a normal program operation on second memory cells, wherein the precharge voltage is applied to the area during the normal program operation, and wherein the area is adjacent to the first dummy cells.

Abstract: A neuron circuit includes: a membrane circuit configured to receive a weighted synaptic current from a synaptic array and receive an adaptive current from an adaptive circuit; a comparator circuit configured to control a pulse generation circuit in response to a voltage of the membrane circuit exceeding a predetermined threshold voltage; the pulse generation circuit configured to control the membrane circuit and the adaptive circuit based on an output signal from the comparator circuit and generate a pulse comprising a firing pattern; and the adaptive circuit, connected to the membrane circuit and the pulse generation circuit, and configured to determine the firing pattern of the pulse generation circuit.

Abstract: In order to reduce the degradation deviation of each area of a volatile memory storing data related to the non-volatile memory included in a storage device, an area storing the corresponding data may be changed and set according to the type of data stored in the volatile memory at a preset time.

Abstract: A transmission apparatus of a single carrier-based wireless communication system is proposed. The transmission apparatus may include a transceiver, a memory configured to store one or more instructions; and a processor configured to execute the one or more instructions stored in the memory. The processor may generate data symbols by modulating traffic data, generate a cyclic prefix (CP) on the basis of the data symbols, and generate a pilot symbol for the data symbol. The transceiver may transmit a single carrier frequency domain equalizer (SC-FDE) frame including the data symbol, the CP, and the pilot symbol. The data symbols may include first data symbols and second data symbols. The pilot symbol may be transmitted after transmission of the first data symbols and before transmission of the second data symbols.

Abstract: A storage device may execute, upon power-on, a training operation on a pattern data chunk a number of times, and update one or more operation parameters of the random access memory when the number of maximum error bits generated during the training operation is equal to or greater than a set threshold number of bits.

Abstract: The present invention relates to polyolefin. More specifically, the present invention relate s to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency and satisfying one of the following 1)˜4): 1) when density is 0.9165 g/cm3 or more and less than 0.9175 g/cm3, the content of SCB (Short Chain Branch) is 9.5 to 10.5 wt %, 2) when density is 0.9175 g/cm3 or more and less than 0.9185 g/cm3, the content of SCB (Short Chain Branch) is 9.0 to 10.0 wt %, 3) when density is 0.9185 g/cm3 or more and less than 0.9195 g/cm3, the content of SCB (Short Chain Branch) is 8.5 to 9.5 wt %, 4) when density is 0.9195 g/cm3 or more and less than 0.9205 g/cm3, the content of SCB (Short Chain Branch) is 7.5 to 8.5 wt %, wherein the density is measured according to ASTM D1505.

Abstract: Disclosed is a device, for matching oral scan data, comprising a first matching unit, a teeth segmentation unit, and a second matching unit. The first matching unit matches a coordinate system of three-dimensional oral scan data to a coordinate system of a three-dimensional oral computed tomography (CT) image by using three-dimensional feature points of the three-dimensional oral scan data and three-dimensional feature points of the three-dimensional oral CT image. The teeth segmentation unit segments teeth from the three-dimensional oral scan data on the basis of the three-dimensional feature points of the three-dimensional oral scan data to generate surface information relating to the segmented teeth. The second matching unit matches the three-dimensional oral scan data and the three-dimensional oral CT image, which have matching coordinate systems, by means of the surface information.

Abstract: Disclosed is a three-dimensional oral scan data matching device including a matching unit, a deep-learning unit, a scanned frame feature determination unit, and a scan data re-matching unit. The matching unit matches a plurality of scanned frames to generate a full mouth image. The deep-learning unit performs deep-learning to detect a feature of the full mouth image. The scanned frame feature determination unit determines a feature of the plurality of scanned frames by utilizing the feature of the full mouth image. The scan data re-matching unit re-matches the plurality of scanned frames on the basis of the feature of the plurality of scanned frames, to reconstruct a three-dimensional oral model.

Abstract: Disclosed is a device for matching three-dimensional intra-oral scan data, the device comprising a computed tomography (CT) image depth map generation unit, a depth map coordinate difference information determination unit, a depth map correction unit, and an intra-oral scan model recovery unit. The CT image depth map generation unit generates a depth map of a CT frame from a CT image by using information about a single scan frame of the scan data. The depth map coordinate difference information determination unit determines depth map coordinate difference information between the depth map of the CT frame and a depth map of the scan frame. The depth map correction unit corrects the depth map of the scan frame on the basis of the depth map coordinate difference information. The intra-oral scan model recovery unit recovers a three-dimensional intra-oral scan model on the basis of the corrected depth map of the scan frame.

Abstract: The present invention provides a plasma-resistant ceramic substrate including a bulk of an oxide composition; and a surface layer in which an oxide composition component constituting the bulk was modified to a composition including one or more anions selected from the group consisting of F? and Cl?, wherein the surface layer is a layer in which a raw material containing one or more anions selected from the group consisting of F? and Cl? is vaporized by heating and adsorbed on the surface of the ceramic substrate to be modified to a composition including one or more anions selected from the group consisting of F? and Cl?, and a method of manufacturing the same. According to the present invention, the plasma resistance and durability of the ceramic substrate can be improved at low cost.

Abstract: Provided are a novel metallocene-supported catalyst and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure may be used in the preparation of polyolefins, it may have excellent activity and excellent reactivity with comonomers, and it may prepare olefinic polymers having a high molecular weight and a low molecular weight.