Abstract: An electronic device includes first to n-th cells (‘n’ is an integer of 2 or more) that receive spatial-temporal input signals that indicate an event unit in a time window, a summation circuit that sums first to n-th cell signals recorded in the first to n-th cells for each of first to m-th unit times (‘m’ is an integer of 2 or more) dividing the time window to generate first to m-th summation signals, and an encoding circuit that compares each of the first to m-th summation signals with a threshold value to encode the spatial-temporal input signals into a code of the event unit.

Abstract: Provided is a neural network accelerator which performs a calculation of a neural network provided with layers, the neural network accelerator including a kernel memory configured to store kernel data related to a filter, a feature map memory configured to store feature map data which are outputs of the layers, and a Processing Element (PE) array including PEs arranged along first and second directions, wherein each of the PEs performs a calculation using the feature map data transmitted in the first direction from the feature map memory and the kernel data transmitted in the second direction from the kernel memory, and transmits a calculation result to the feature map memory in a third direction opposite to the first direction.

Abstract: Gas vesicles, protein variants and related compositions methods and systems for singleplexed and/or multiplexed ultrasound imaging of a target site in which a gas vesicle provides contrast for the imaging which is modifiable by application of a selectable acoustic collapse pressure value of the gas vesicle.

Abstract: This invention relates to novel and improved catalyst and catalysts systems for the oligomerization of the higher olefins, which produce lubricants having improved properties, such as end-saturated oligomer chains which are needless to hydrogenation process, low kinematic viscosity and/or high viscosity index, low pour point, and high flash point lubricants.

Abstract: An electrode composed of a substrate including a graphene layer coated on a first metal; and a complex including a second metal deposited on the substrate and a hydroxide of the first metal, where the complex is in the form of core-shell in which the second metal is a core and the hydroxide of the first metal is a shell, and the second metal has a higher standard reduction potential than the first metal. The graphene-coated metal foam of the present invention is the first case that proves not only theoretically but also by experiment that the remarkable catalytic ability reducing other metals (Au, Pt, Ag, and Cu, etc.) with a higher reduction potential than the metal by graphene coated on the metal surface it electroless deposition without additional reductant or electrical reduction conditions is due to the electrical double layer or interfacial dipole induced between the graphene and the metal.

Abstract: The present invention is directed at the integration of a solid oxide fuel cell (SOFC) into the exhaust stream of an internal combustion engine aided by the upstream injection of a fuel, such as a hydrocarbon fuel. The internal combustion engine may be advantageously operated in a lean condition while the SOFC receives the hydrocarbon fuel to promote and maintain optimized fuel cell operation.

Abstract: A modified Y-type molecular sieve having a calcium content of about 0.3-4 wt % calculated on the basis of calcium oxide, a rare earth content of about 2-7 wt % calculated on the basis of rare earth oxide, and a sodium content of no more than about 0.5 wt % calculated on the basis of sodium oxide. The modified Y-type molecular sieve has a total pore volume of about 0.33-0.39 ml/g, a proportion of the pore volume of secondary pores having a pore size of 2-100 nm to the total pore volume of about 10-25%, a lattice constant of about 2.440-2.455 nm, a proportion of non-framework aluminum content to the total aluminum content of no more than about 20%, a lattice collapse temperature of not lower than about 1050° C., and a ratio of B acid to L acid in the total acid content of no less than about 2.30.

Abstract: Provided are an apparatus and method for detecting ventricular depolarization (QRS) of an electrocardiogram (ECG). The apparatus includes an input unit configured to receive an ECG signal, a memory configured to store a program for detecting R and ventricular depolarization using the ECG signal, and a processor configured to execute the program, wherein the processor detects a QRS interval and an R-peak using a first-order derivative filter and a max-filter.

Abstract: The present invention discloses an aspheric lens eccentricity detecting device based on wavefront technology and a detecting method thereof. The device comprises: an upper optical fiber light source, an upper collimating objective lens, an upper light source spectroscope, an upper beam-contracting front lens, an upper beam-contracting rear lens, an upper imaging detector, an upper imaging spectroscope, an upper wavefront sensor, a lens-under-detection clamping mechanism, a lower light source spectroscope, a lower beam-contracting front lens, a lower beam-contracting rear lens, a lower imaging spectroscope, a lower wavefront sensor, a lower imaging detector, a lower collimating objective lens and a lower optical fiber light source.

Abstract: A 3-D imaging system including a computer determining a plurality of coherence factors measuring an intensity contrast between a first intensity of a first region of an interference comprising constructive interference between a sample wavefront and a reference wavefront, and a second intensity of a second region of the interference comprising destructive interference between the sample wavefront and the reference wavefront, wherein the interference between a reference wavefront and a reflection from different locations on a surface of an object. From the coherence factors, the computer determines height data comprising heights of the surface with respect to an x-y plane perpendicular to the heights and as a function of the locations in the x-y plane. The height data is useful for generating a three dimensional topological image of the surface.

Abstract: Carbon-based materials, and associated methods and articles, are generally provided. In some embodiments, a carbon-based material comprises a carbon-based portion and a functional group bonded to the carbon-based portion. The functional group may be capable of forming a reversible covalent bond with a species. Carbon may make up greater than or equal to 30 wt % of the carbon-based portion. The carbon-based portion may comprise graphene, and a ratio of a total number of functional groups in a plurality of functional groups bonded to the graphene to a total number of carbon atoms in the plurality of carbon atoms of the graphene may be greater than or equal to 1:50. The carbon-based portion may comprise graphene, and greater than or equal to 70% of the graphene sheets may be spaced apart from their nearest neighbors by a distance of greater than or equal to 10 ?. A method may comprise applying a voltage to a carbon-based material.

Abstract: Provided is a radioisotope battery. A radioisotope battery according to exemplary embodiments may include: a substrate; a shield layer disposed on the substrate and including a first material; a source layer embedded in the shield layer and including a second material which is a radioisotope of the first material; a PN junction layer on the shield layer and the source layer; and a window layer between the PN junction layer and the source layer.

Abstract: Provided is a superconducting coil having a spiral structure for a current limiter. The coil includes: a first superconducting tape, a second superconducting tape, and an insulating isolation layer, where the first superconducting tape and the second superconducting tape have spiral structures, an end of the first superconducting tape at a spiral center is connected to an end of the second superconducting tape at the spiral center, the instating isolation laser is filled between the first superconducting tape and the second superconducting tape, and a spacing between the first superconducting tape and the second superconducting tape gradually increases from the spiral center to an outer spiral periphery.

Abstract: A dipole antenna fed by a planar balun includes a first radiation element and a second radiation element respectively corresponding to poles of the dipole antenna, at least one dipole support column configured to connect the first radiation element and the second radiation element and to fix a gap between the first radiation element and the second radiation element, a planar balun connected to the first radiation element and the second radiation element and configured to feed the first radiation element and the second radiation element, and a balun housing coupled to the dipole support column and enclosing the planar balun.

Abstract: A personal therapy compartment includes a base of size to receive a human patient. The compartment includes a bed in the base said bed being made of a light transmissive material. An array of lights mounted is below the bed to transmit light onto a body supported on the bed. A control panel controls at least the wavelength, intensity and pulsation of the light.

Abstract: Systems and methods for self-supervised learning for visual odometry using camera images captured on a camera, may include: using a key point network to learn a keypoint matrix for a target image and a context image captured by the camera; using the learned descriptors to estimate correspondences between the target image and the context image; based on the keypoint correspondences, lifting a set of 2D keypoints to 3D, using a learned neural camera model; estimating a transformation between the target image and the context image using 3D-2D keypoint correspondences; and projecting the 3D keypoints into the context image using the learned neural camera model.

Abstract: An image processing method and an image processing apparatus are disclosed. An image processing method according to an embodiment includes the steps of: obtaining a position of a user's hand; and controlling a virtual window on the basis of the position of the hand.

Abstract: The present disclosure is concerned with piperazine-2,5-diones that are capable of inhibiting TGF-? and methods of treating cancers such as, for example, multiple myeloma and a hematologic malignancy, and methods of treating fibrotic conditions using these compounds. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: A method, a composition and a kit for screening an ALK or ROS-1 kinase inhibitor are disclosed in the present specification. In an aspect, by the method, composition and kit for screening an ALK or ROS-1 kinase inhibitor according to the present disclosure, it is possible to conduct simultaneous quantitative and qualitative analysis and faster screening of a larger number of candidate substances as compared with conventional molecular biological experimental methods and to grasp the overall level of change in a plurality of different metabolites in a cell line by candidate substances of ALK or ROS-1 kinase inhibitor and thus the screening efficiency for drugs which exert an ALK or ROS-1 kinase inhibitory effect is excellent. Consequently, the present disclosure has an advantage of being able to be used in various ways in the development of new drugs which exert an ALK or ROS-1 kinase inhibitory effect.

Abstract: The present disclosure discloses a semiconductor device and a preparation method thereof. The semiconductor device includes: an N+ substrate, a plurality of openings opening toward a back surface formed in the N+ substrate; an N? epitaxial layer formed on the N+ substrate, the N? epitaxial layer including: an active area epitaxial layer including a plurality of P++ area rings and a plurality of groove structures, wherein single groove structure is formed on single P++ area ring; a terminal area epitaxial layer including an N+ field stop ring and a plurality of P+ guard rings; a Schottky contact formed on the active area epitaxial layer, a passivation layer formed on the terminal area epitaxial layer, and ohmic contacts formed on the back surface of the N+ substrate and in the plurality of openings.