Abstract: The present invention relates to a soft robot using diamagnetic levitation. Such a soft robot using diamagnetic levitation is formed of a diamagnetic material to levitate on the ground on which a magnetic field is formed, and moves in a direction toward a predetermined point of a head part when the predetermined point of the head part is heated, and may thus move and change its direction in a state in which it is not in contact with the ground.

Abstract: The present disclosure relates to a sub-nanometric particles-metal organic framework complex including a multi-shell hollow metal organic framework (MOF) and sub-nanometric particles (SNPs), and a method of preparing the same.

Abstract: An output buffer is disclosed that includes: a buffer circuit that outputs an output signal to an output terminal based on a first input signal provided to a first input terminal and a second input signal provided to a second input terminal; and a current supply circuit that is connected in parallel to the buffer circuit, and provides an auxiliary current to the output terminal based on the first input signal and the second input signal.

Abstract: The present disclosure is broadly concerned with the field of cancer immunotherapy. For example, the present invention generally relates to an immune cell comprising a genetically engineered antigen receptor that specifically binds to a target antigen and a genetic disruption agent that reduces or is capable of reducing the expression in the immune cell of a gene that weakens the function of the immune cell.

Abstract: An optical measurement device according to an aspect of the present disclosure includes a universal metasurface on which light is incident, a polarization sensor configured to measure a polarization state of light passing through the universal metasurface, and a controller configured to collect a quantitative differential interference contrast (QDIC) image for the x polarization of incident light that is collected by the polarization sensor, a QDIC image for y polarization, and a quantitative relative phase (QRP) image representing a relative phase difference between the x polarization and y polarization and configured to calculate intensity, a phase or polarization information of the incident light.

Abstract: A method for detecting fatigue cracks in a structure and a system therefore are disclosed. A vibration detection element detects vibration of the structure generated when the structure is excited at low and high frequencies and generates a measurement signal in the time domain. Based on a trained long short-term memory (LSTM) network, a signal of the next time step is predicted from the measurement signal of the current time step measured by the vibration detection element. The measurement signal and the prediction signal are combined to create a new combined signal with an increased length in the time domain. The combined signal is Fourier transformed to reduce noise and enhance the information of the measured signal in the frequency domain, and the Fourier transformed signal is used to obtain a spectral density function and to detect cracks in the structure.

Abstract: Provided is a catalyst structure for a liquid organic hydrogen carrier (LOHC) dehydrogenation reactor, including a support, a plurality of channels formed on the support in such a manner that the LOHC may flow therethrough, and an LOHC dehydrogenation catalyst that is coated on the inner surfaces of the channels and is in contact with the LOHC to carry out LOHC dehydrogenation, wherein the hydrogen gas generated from the dehydrogenation is discharged along the channels so that the contact area between the LOHC and the LOHC dehydrogenation catalyst may be increased.

Abstract: An intelligent trust enabler system for a 5G IoT (fifth-generation Internet of Things) environment includes: an IoT trust enabler mounted on an edge and gateway on a fifth-generation (5G) IoT infrastructure, for providing trust information based on data collected from IoT devices and performing operation and management of connected IoT resources; and an IoT trust agent for providing a legacy environment for the IoT trust enabler.

Abstract: Disclosed is a 3D point cloud-based deep learning neural network acceleration apparatus including a depth image input unit configured to receive a depth image, a depth data storage unit configured to store depth data derived from the depth image, a sampling unit configured to sample the depth image in units of a sampling window having a predetermined first size, a grouping unit configured to generate a grouping window having a predetermined second size and to group inner 3D point data by grouping window, and a convolution computation unit configured to separate point feature data and group feature data, among channel-direction data of 3D point data constituting the depth image, to perform convolution computation with respect to the point feature data and the group feature data, to sum the results of convolution computation by group grouped by the grouping unit, and to derive the final result.

Abstract: The present disclosure relates to a noble metal single atom or cluster-porous molybdenum carbide/carbon nanocomposite using dynamic arrangement of noble metal single atoms or clusters, a method for preparing the same, a catalyst for hydrogen evolution reaction or hydrogen oxidation reaction including the same, and an electrode including the catalyst. The noble metal single atom or cluster-porous molybdenum carbide/carbon nanocomposite of the present disclosure, which is prepared by uniformly bonding a noble metal catalyst only on molybdenum carbide in the form of single atoms or clusters in atomic scale through selective dynamic arrangement, may have remarkably improved catalytic activity and kinetic characteristics since the utilization of the noble metal is improved through selective dynamic arrangement of the noble metal catalyst, may have high stability due to strong interaction between the noble metal catalyst and the molybdenum carbide, and may have high tolerance to carbon monoxide.

Abstract: A server may include a communication circuit communicating with a user terminal, storage including a fingerprint DB storing fingerprints corresponding to a plurality of points and a signal fluctuation probability DB, and a processor electrically connected to the communication circuit and the storage. The processor may be configured to store similarity between first signal strength and second signal strength, which are determined based on a probability that a pair of the first signal strength and the second signal strength received from a first AP occurs with respect to fingerprints corresponding to a first point, in the signal fluctuation probability DB, to obtain a fingerprint including signal strength received from the first AP, from the user terminal, and to determine a location of the user terminal based on the obtained fingerprint and the signal fluctuation probability DB.

Abstract: A method and apparatus for measuring a 3-D refractive index tensor are presented. The method for measuring a 3-D refractive index tensor according to an embodiment comprises the steps of: controlling incident light of a plane wave with respect to at least one angle and polarization; and measuring, in a polarization-dependent manner, the 2-D diffracted light of a specimen with respect to the incident light incident at the at least one angle and polarization, wherein the birefringence value and the 3-D structure of an alignment direction of molecules in the specimen having birefringence may be measured.

Abstract: Provided is a technology of estimating a bending stiffness variation of a tire and estimating a tread wear amount of a tire using the same. A tire wear measuring apparatus wear includes a signal receiver configured to measure acceleration inside the tire with respect to an axial direction, which is a radial direction of the tire, for each point inside the tire, a signal analyzer configured to receive signal information from the signal receiver and estimate a tread wear rate of the tire by calculating a bending stiffness variation rate of the tire using axial acceleration inside the tire, a transmitter configured to receive and transmit analysis information, which is information on the tread wear rate of the tire, from the signal analyzer, and a control module configured to receive the analysis information from the transmitter and generate a control signal for a vehicle to which the tire is installed.

Abstract: Provided are a computer system for automatically searching for a mental disorder diagnosis protocol and an method thereof that may determine at least one test region to be examined for a predetermined mental disorder diagnosis in a brain image of a patient based on a first artificial neural network, may determine a test process for the mental disorder diagnosis for the patient based on a second artificial neural network, and may provide a test protocol for the mental disorder diagnosis for the patient based on the test region and the test process. The computer system may visualize at least one of a position, a shape, a size, and an importance of the test region in the brain image. The test process may include test order of a plurality of test stages in which the brain image is to be used for the mental disorder diagnosis.

Abstract: The provided programmable photonic circuit includes a tunable optical coupler, an optical phase shifter, and a control unit. First and second waveguides are provided in a first section corresponding to each other in the tunable optical coupler, and the tunable optical coupler includes a first actuator to adjust optical coupling efficiency of an optical signal between the first and second waveguides. One waveguide of the first and second waveguides, and a perturbation waveguide are provided in a second section corresponding to each other in the optical phase shifter, and the optical phase shifter includes a second actuator to change the phase of an optical signal traveling through the one waveguide, by changing an effective refractive index of an optical mode of the one waveguide according to the gap between the one waveguide and the perturbation waveguide. The control unit controls driving signals applied to the first and second actuators.

Abstract: Provided are a computer device for fast stimulation artifact template-based real-time stimulation artifact removal and a method thereof. The computer device may be connected to a recording device in which data representing effect of stimulation on a living body is recorded and may be configured to generate a stimulation artifact template for the stimulation based on the recorded data, and to remove a stimulation artifact according to the stimulation from the recorded data using the stimulation artifact template.

Abstract: An ultrathin camera device is provided. The ultrathin camera device comprises an optical module including a microlens array in which microlenses are arranged, an image sensor that outputs electrical image signals by sensing light coming through the microlens array, spacers that form a focal length by separating the optical module from the image sensor, and a processor that outputs a final image by reconstructing array images generated from the image signals with a designated imaging process depending on a distance at which the object is located. Here, each microlens convexly protrudes toward the image sensor.

Abstract: Disclosed are a femtosecond laser-based ultrasonic measuring apparatus for a 3D printing process, and a 3D printing system including the apparatus. The apparatus includes a femtosecond laser source for generating a femtosecond laser beam irradiated to inspect a state of a printing object formed by melting a base material by a printing laser beam irradiated from the laser source for 3D printing, a beam splitter for separating the femtosecond laser beam generated by the femtosecond laser source into a pump laser beam and a probe laser beam, an electric/acoustic optical modulator for modulating the pump laser beam, a time delay unit for delaying the probe laser beam, a photo detector for detecting the probe laser beam reflected by the printing object, and a lock-in amplifier for detect an amplitude and a phase of the output signal from the photo detector. The femtosecond laser source is disposed coaxially with a laser source for 3D printing.

Abstract: Provided is a technique of quantifying a change in irregularity appearing in an acceleration signal of a tire and measuring a tread wear amount of the tire using the quantified change.

Abstract: A calibration circuit includes a selection unit, a power detector, an analog-to-digital converter and a calibrator. The selection unit is connected to the plurality of channels, selects two channels from among the plurality of channels, provides a test signal to the selected two channels, and receives a test result signal from the selected two channels. The power detector detects power of the selected two channels. The analog-to-digital converter performs an A/D conversion on an output of the power detector. The calibrator calibrates the phases and the gains between the plurality of channels based on an output of the analog-to-digital converter. One of the plurality of channels is set as a reference channel, phases and gains of remaining channels other than the reference channel among the plurality of channels are sequentially optimized based on the reference channel, and a phase and a gain of the reference channel is optimized.