Abstract: Provided is a color filter. The color filter includes a nano structure layer including a base substrate and a plurality of nano structures which are disposed to be spaced apart from each other on the base substrate and each of which has an elliptical shape on a plane, and a polarization control layer disposed on the nano structure layer and including liquid crystal molecules of which an alignment direction on a plane parallel to the base substrate is controlled by an electric field to realize excellent color reproducibility.

Abstract: A two-terminal atom-based switching device having a fast operating speed and high durability and a manufacturing method thereof are disclosed. It is possible to reduce a forming voltage during positive voltage forming by forming an oxygen vacancy percolation path through negative voltage forming, which is first forming, and forming high binding energy and low formation energy between oxygen vacancies and metal ions implanted through positive voltage forming which is second forming after the negative voltage forming. Further, since a significant amount of metal ions implanted into the insulating layer through negative voltage application switching after the positive voltage forming is removed, the volatility of the two-terminal atom-based switching device may be improved, and a stuck-on failure phenomenon in the durability may be prevented.

Abstract: A method including sensing local accelerations or changes in sensor position, including orientation and displacement, with a local acceleration sensor mounted on a chest or abdomen of a patient, and calculating energy of polyphasic motions, based on sensed information of the local acceleration sensor and classifying severity of cardiac decompensation by calculating an excessive energy index (EEi) that compares excessive energy that appears in the polyphasic motions to energy required for inspiration at a basic respiratory rate.

Abstract: A steering and driving interface device mounted in a vehicle includes a rail part fixed in the vehicle and elongated in a first direction, and a driving part coupled to the rail part. The driving part is configured to move in the first direction and control an acceleration and deceleration of the vehicle. The steering and driving interface device also includes: a steering part disposed in the rail part and configured to rotate about an axis parallel to the first direction; and a manipulation lever coupled to the steering part and the driving part and extending upward. The manipulation lever is configured to control the acceleration and deceleration of the vehicle by operating the driving part or control a rotation of the vehicle by operating the steering part.

Abstract: A memory device comprising a stacking structure including a plurality of electrodes and an insulation layer between the plurality of electrodes. The stacking structure has a recess portion corresponding to the plurality of electrodes or the insulation layer at a side surface of the stacking structure. The memory device also comprising a resistance variable layer on the side surface of the stacking structure having the recess portion, and includes a portion extending in an extension direction crossing the stacking structure. The resistance variable layer includes a first portion including a first expanded portion along a recess surface of the recess portion, a second portion including a second expanded portion along the recess surface of the recess portion on the first portion, and a third portion on the second portion. The second portion has a resistance smaller than a resistance of the first portion.

Abstract: The present disclosure relates to a surfactant composition including an amphiphilic block copolymer based on polyhydroxyalkanoate (PHA), the surfactant composition is highly safe for the human body and the environment due to its excellent biodegradability and biocompatibility, and a hemostatic agent and medical adhesive including the same are effective in hemostasis, wound healing, tissue adhesion, and inhibition of bacterial infection.

Abstract: There is provided a method for generating image change data to be performed by an image change data generating apparatus, the method comprising, inputting an initial image and data parameters to a data generator, generating a first image and a second image respectively, within a first time interval by using the data generator based on the initial image and the data parameters, the first image and the second image being in a relationship of consecutive frames with each other, and generating a first image change data by using a pre-trained first proxy network and a second image change data by using a pre-trained second proxy network based on the first image and the second image.

Abstract: The present disclosure related to an ultrasonic volume measurement device or system comprising a first ultrasonic array, a second ultrasonic array, an array control unit, and a volume measurement unit, wherein the first ultrasonic array includes multiple first directional elements arranged along a first direction, and transmits a first ultrasonic transmission signal; the second ultrasonic array includes multiple second directional elements arranged along a second direction perpendicular to the first direction, transmitting a second ultrasonic transmission signal, and is disposed on one side of the first ultrasonic array.

Abstract: Provided is a continuous preparation method of composite particles for capturing carbon dioxide which, in a process of using sea water as water, that is, a process of converting sea water into water, contribute to carbon neutrality by fixing carbon dioxide through mineralization of ions in sea water which is supply water or effluent water of the process.

Abstract: A digital-analog memory integrated deep learning accelerator system may include: a main digital device including a first array, the first array having digital circuits and configured to store weights for on-chip learning; an analog device including a second array, the second array having analog circuits and configured to update and store gradient information about the weights during the on-chip learning; and a sub-digital device including a third array, the third array having digital circuits and configured to store values read from the second array and to transfer a value exceeding a threshold to the first array. The digital-analog memory integrated deep learning accelerator system may perform a matrix-level learning process through an array set including the first array, the second array, and the third array. An artificial neural network learning method for a digital-analog memory integrated deep learning accelerator system is also disclosed.

Abstract: An imaging system that includes a first polarization structure that polarizes light provided from a light source into first polarized light, a first power supply connected to the first polarization structure and that applies a first voltage to the first polarization structure, a meta-lens on which the first polarized light is incident, a second polarization structure that converts the first polarized light that passes through the meta-lens into second polarized light, a second power supply connected to the second polarization structure and that applies a second voltage to the second polarization structure, and an image sensor that senses the second polarized light. The first voltage and the second voltage are different from each other.

Abstract: A content addressable memory device including a memory cell array including a plurality of memory cells, each of which has a ferroelectric tunnel field effect transistor (FeTFET), and a match amplifier connected to the plurality of memory cells through a plurality of match lines may be provided. The FeTFET includes a first doped region including a first conductivity type, a second doped region including a second conductivity type different from the first conductivity type, a channel region formed between the first doped region and the second doped region, and a gate formed on the channel region and including a ferroelectric layer.

Abstract: An antenna device according to an embodiment of the present invention includes a dielectric layer, a first radiator disposed on the dielectric layer in a first direction, a second radiator formed in a shape different from that of the first radiator and disposed on the dielectric layer in a second direction, a first transmission line which extends in the first direction to be connected to the first radiator, and a second transmission line which extends in the second direction to be connected to the second radiator, and intersects the first transmission line with being physically or electrically spaced apart therefrom.

Abstract: A system and method of detecting acoustic waves including directing a continuous-wave source laser beam to an optical resonator that is impinged by acoustic the waves. Optionally, the source laser beam can propagate through the optical resonator, thereby generating a propagated laser beam. Using an interferometer, the acoustic waves can be detected by monitoring transients in an optical phase of the propagated laser beam.

Abstract: A display device includes a display panel which contains an LED which emits light, a first layer containing a porous polymer and disposed on the display panel, a second layer containing a metal halide and disposed on the first layer, and a lenticular lens disposed on the display panel, where the first layer has a first refractive index and the second layer has a second refractive index less than the first refractive index.

Abstract: A memory device, including: a memory cell array including a plurality of cell strings; a voltage generator configured to generate a precharge voltage, a program voltage, and a negative voltage; and a control logic circuit configured to control a program operation for programming a threshold voltage of a selected memory cell to have a target state, wherein the program operation is performed using a plurality of program loops, based on a voltage increment of the program voltage, and wherein each program loop from among the plurality of program loops includes a precharge duration and a program execution duration, wherein the control logic circuit is further configured to provide the negative voltage to a plurality of unselected string select transistors and a plurality of unselected ground select transistors included in a plurality of unselected cell strings from among the plurality of cell strings, during the program execution duration.

Abstract: The present disclosure relates to a transition metal-doped nickel phosphide nanostructure, a method for preparing the same, and a catalyst for electrochemical water decomposition including the transition metal-doped nickel phosphide nanostructure. More specifically, a transition metal-doped nickel phosphide nanostructure can be prepared by converting a zinc oxide nanostructure grown on a substrate vertically by hydrothermal synthesis to a transition metal-doped nickel oxide nanostructure by cation exchange and then phosphorizing the nickel oxide. The transition metal-doped nickel phosphide nanostructure of the present disclosure is advantageous in that it has superior catalytic activity and conductivity due to large surface area. In addition, when used as a catalyst for water decomposition under an alkaline condition, it has a low overvoltage and can have excellent catalytic activity for hydrogen evolution reaction or oxygen evolution reaction.

Abstract: The present invention relates to a position tracking-type ultrasonic blood flow monitoring apparatus that can continuously track the position of a blood vessel by adjusting the rotation angle of an ultrasonic probe module according to the position change of the blood vessel. The present invention may provide a blood flow monitoring apparatus comprising a housing having an opening formed at a bottom surface thereof; a first rotation member rotating around a first axis in the housing; a second rotation member mounted to the first rotation member and rotating around a second shaft; and a probe module mounted to the second rotation member, wherein the probe module rotates together with the first rotation member and the second rotation member according to the rotation of the first rotation member and the second rotation member, and can transmit and receive an ultrasonic signal.

Abstract: The present disclosure relates to a multi-armed bandit method and apparatus for selecting multiple items while ensuring fairness of exposure of the multiple items and maximizing the averaged total reward. The MAB method includes: initializing the empirical mean reward and number of arm selections of each arm for the M arms, and the time step; incrementing the time step; calculating the UCB index of each arm for the M arms; selecting K?1 arms with the K?1 highest UCB indices calculated; calculating unfairness indices for the unchosen M?(K?1) arms; checking if there is an arm with a positive unfairness index among the unchosen M?(K?1) arms; selecting the remaining single arm depending on whether there is an arm with a positive unfairness index among the unchosen M?(K?1) arms; playing the selected K arms; and updating the empirical mean reward and the number of arm selections for the played arms.

Abstract: An acoustic feature extraction (AFE) circuit includes a plurality of band-pass filters (BPFs) adaptable to a plurality of channels with different band-pass frequency ranges respectively for switchably receiving an amplified signal, thereby generating corresponding filtered signals, the plurality of BPFs including an operational amplifier that is shared among the plurality of channels; and a rectifier switchably coupled to receive the filtered signals, thereby generating a rectified signal. The amplified signal is time-division demultiplexed onto the BPFs in different phases, and the filtered signals are time-division multiplexed onto the rectifier in different phases.