Abstract: A van der Waals stacked Josephson junction structure and a method for fabricating the same are provided. The van der Waals stacked Josephson junction structure according to an embodiment of the present disclosure includes a substrate, a first layer of a van der Waals material separable into layers and positioned on the substrate, and a second layer of the van der Waals material positioned on the first layer, in which the first layer and the second layer are twisted at a predetermined angle with each other, and a Josephson junction is formed between the first layer and the second layer.

Abstract: A method and apparatus for image restoration using burst images are provided, where the method includes receiving a burst image set including image frames, determining shifted data representing a shift level of each of the image frames using a shift estimation model, selecting a base image from the image frames based on the shifted data, and performing image restoration by synthesizing at least a portion of the image frames based on the base image.

Abstract: Disclosed are a sensor including a first metal layer and a second metal layer facing each other, and a volume changeable layer disposed between the first metal layer and the second metal layer and capable of absorbing a material to change the thickness thereof, wherein at least one of the first metal layer and the second metal layer is a semi-transmissive layer and the sensor indicates a color change by changing a resonance wavelength of light transmitted through the semi-transmissive layer according to a change in thickness of the volume changeable layer, and a sensor device, an electronic device, a smart window, and an IoT system including the same.

Abstract: A polar code-based decoding method may comprise: converting a plurality of LLRs of calculation-target bits into a plurality of absolute (ABS) LLR values; sorting the plurality of ABS LLR values in order of size so that a minimum ABS LLR value is designated from among the plurality of ABS LLR values; multiplying the minimum ABS LLR value by a preset weight; and updating path metrics (PMs) of the calculation-target bits in an order in which the plurality of ABS LLR values are sorted, wherein the updating of the PMs of the calculation-target bits comprises, even when a specific ABS LLR value of a specific calculation-target bit is equal or similar to the minimum ABS LLR value, updating a PM of the specific calculation-target bit with the minimum ABS LLR value multiplied by the preset weight.

Abstract: Provided is a method of optimizing calculation of a convolutional layer including a plurality of channels and a convolutional neural network (CNN) accelerator. The method includes a classification operation of classifying weights of the plurality of channels as outlier (OL) elements and non-outlier (NOL) elements, a combination operation of combining two or more NOL elements which are put into calculation with the same activation value and present at the same slot in the plurality of channels, and a scheduling operation of moving a scheduling candidate element in a fetch window after the combination operation to a slot which is assigned no value.

Abstract: A transparent-ultrasonic-sensor-based optical-ultrasonic integrated endoscopic probe according to one embodiment of the present disclosure may comprise: an optical fiber laser unit for emitting light; a transparent ultrasonic sensor, which is arranged between an object to be measured and the optical fiber laser unit to transmit, therethrough, the light emitted from the optical fiber laser unit, coaxially aligned with the light emitted from the optical fiber laser unit, radiating ultrasonic waves at the object, and receiving reflected ultrasonic waves; and a camera for acquiring an image of the object through the transparent ultrasonic sensor.

Abstract: An apparatus for measuring a bio-signal includes: a light source configured to emit light; an ultrasonic transducer configured to obtain a photoacoustic signal generated from an object; a photoacoustic coupler disposed in contact with the ultrasonic transducer and configured to direct the light transmitted from the light source to a scanner and to direct the photoacoustic signal generated from the object to the ultrasonic transducer; the scanner configured to reflect the light incident from the photoacoustic coupler to the object, and reflect the photoacoustic signal generated from the object to the photoacoustic coupler; a scanner controller configured to adjust a light incident position on the object by controlling the angle of the scanner; a light detector configured to obtain a light signal by detecting the light scattered or reflected from the object; and a processor configured to obtain bio-information based on the light signal and the photoacoustic signal.

Abstract: A method of transforming a degree of freedom (DoF) in a multiple sensorial media (mulsemedia) system includes detecting, by a motion detector, a motion of an object to which motion effects are to be provided; calculating, by a motion proxy calculator, a motion proxy corresponding to the motion of the object; and transforming, by a transformer, the motion proxy into a motion command implementable within a motion range of a motion platform.

Abstract: A method may include predicting, using a machine learning model, score maps for each of a plurality of pre-set classes for predetermined symmetry types, using a plurality of pixels included in the feature map, and detecting a symmetry element of the input image based on the predicted score maps.

Abstract: A processor-implemented method includes: extracting feature maps respectively corresponding to a plurality of channels based on a convolutional network with respect to two images; generating a matching point map from the feature maps; refining the matching point map by using attention between matching points comprised in the matching point map; and extracting a matching point between the two images from the refined matching point map.

Abstract: An electronic device using a spatio-temporal self-similarity (STSS) and a method of operating the electronic device are disclosed. The electronic device may generate an STSS tensor including a spatial self-similarity map and spatial cross-similarity maps for each position of a video feature map corresponding to an input video based on a temporal offset and a spatial offset. STSS feature vectors may be generated from the STSS tensor by decreasing a dimension of the spatial offset and maintaining a dimension of the temporal offset for each position of the STSS tensor. An STSS feature map may be generated by integrating the dimension of the temporal offset for each position of the STSS feature vectors. An inference on the input video may be based on a result of adding the STSS feature map to the video feature map.

Abstract: The present disclosure provides a method and an apparatus for quickly and accurately evaluating a trajectory of a projectile such as a satellite launching rocket or a missile by comparing the trajectory with a reference trajectory. The trajectory evaluation method includes: acquiring time series positioning data for a target and predetermined reference trajectory information; and mapping points representing the time series positioning data on a graph into corresponding points on a reference trajectory representing the predetermined reference trajectory information while relocating each mapped point onto a relocatable section taking into account a movable range dependent on a speed of the target, and determining a maximum value of distances moved by the points while the points are mapped and relocated as a similarity between the time series positioning data and the reference trajectory.

Abstract: An electronic device includes: a glass substrate including a first surface and a second surface opposite to the first surface; a semiconductor element provided on the first surface of the glass substrate; a first pattern provided on the first surface of the glass substrate, the first pattern being electrically connected to a first end of the semiconductor element; a second pattern provided on the first surface of the glass substrate, the second pattern being electrically connected to a second end of the semiconductor element; a feeding line provided on the second surface of the glass substrate; and a via hole which passes through the glass substrate in a first direction, the via hole electrically connecting the feeding line to the second pattern.

Abstract: Proposed are a flexible electrode circuit capable of being foamed through 3D circuit printing, a strain sensor using the same, and a manufacturing method thereof. The flexible electrode circuit includes a flexible substrate and an electrode foamed on the flexible substrate. The electrode includes a conductive line layer and a passivation layer. The conductive line layer includes a matrix including an elastic polymer and a conductive line having conductive liquid metal microparticles dispersed in the matrix. The passivation layer includes a coating portion coated on the conductive line and having an elastic polymer.

Abstract: The present disclosure relates to a cable-based force feedback control apparatus capable of automatically determining the unspecified number and positions of cable haptic apparatus and performing force feedback control based on the determination result and a control method for the apparatus. A force feedback control apparatus and a control method for the apparatus according to the present disclosure may freely change the number and positions of haptic modules, may be installed according to various screen sizes, and may automatically detect the number and positions of the haptic devices, thereby achieving scalability.

Abstract: A traffic categorization method and device are disclosed. A traffic categorization method according to one embodiment of the present invention may comprise the steps of: receiving flow data comprising information about a flow; scaling for the flow data; generating input data by removing, on the basis of a correlation, overlapping data from the scaled flow data; and categorizing a network traffic on the basis of the input data.

Abstract: A superconducting quantum interferometric device (SQUID) includes: a conductive material region formed on a partial region of a substrate; a first superconducting material layer including a first loop including first and second extension units that are spaced apart from each other to form a proximity Josephson junction and that form a stack structure with the conductive material region; a second superconducting material layer including a second loop including first and second end units spaced apart from each other; and a tunnel Josephson junction formed by a stack structure including a tunnel thin film layer forming and the first and second end units, wherein at least a portion of the second loop forms a stack structure with the first loop.

Abstract: Disclosed is a method for preparing a perovskite nanoparticle using a fluidic channel including a first step of forming a fluidic channel including a first outer tube, a second outer tube, and a storage tube capable of introducing flows of fluids, a second step of inducing formation of the perovskite nanoparticles by continuously preparing a mixed fluid with a laminar flow based on a flow rate by introducing a flow of a base fluid into the first outer tube, and introducing a flow of a dispersion fluid in the same direction as the flow of the base fluid into the second outer tube, and a third step of separating the perovskite nanoparticles from the mixed fluid stored in the storage tube.

Abstract: Provided is a spatial light modulator configured to modulate light, the spatial light modulator including a first reflective layer, a resonance layer on the first reflective layer, and a second reflective layer on the resonance layer, the second reflective layer including a plurality of grating structures space apart from each other, wherein the plurality of grating structures include silicon (Si) having an extinction coefficient k that is less than or equal to 1e-5 with respect to light in the predetermined wavelength band.

Abstract: Disclosed are a user detection technique, and a method and apparatus for channel estimation in a wireless communication system supporting massive multiple-input multiple-output.