Abstract: A hardly graphitizable carbonaceous material can be used in a negative electrode material for nonaqueous electrolyte secondary batteries (for example, a lithium ion battery) having not only high charge capacity but also high charge-discharge efficiency and being fully charged to be used and a method for producing the same. Such hardly graphitizable carbonaceous material may have an oxygen element content of 0.25% by mass or less.

Abstract: The invention provides compositions and methods for preserving, restoring, or enhancing vision of a subject by administering compositions to an injured or diseased eye.

Abstract: Provided are a method and an apparatus for measuring an endolymphatic hydrops ratio of inner ear organs using an artificial neural network. The method of measuring an endolymphatic hydrops ratio includes obtaining a plurality of frame images obtained by capturing inner ear organs, obtaining a plurality of pieces of mask data corresponding to each of the plurality of frame images by inputting the plurality of frame images into a neural network, clustering the plurality of pieces of mask data according to the inner ear organs and obtaining representative images according to the inner ear organs according to certain conditions, and overlapping a target image synthesized by using the plurality of frame images and the representative images according to the inner ear organs so as to measure an endolymphatic hydrops ratio.

Abstract: An image region segmentation method and system suing self-spatial adaptive normalization is provided. The image region segmentation system includes: an encoder configured to encode an image for segmenting a region by using a plurality of encoding blocks; and a decoder configured to decode the image encoded by the encoder and to generate a region-segmented image by using a plurality of decoding blocks, wherein each of the encoding blocks processes an inputted image into a convolution layer, performs spatial adaptive normalization, and then reduces the image and delivers the image to the next encoding block. Accordingly, spatial characteristics of the image are considered in an encoding process and a decoding process, so that region segmentation can be exactly performed with respect to various images.

Abstract: Disclosed is a method and apparatus for generating a radar signal, in which performance of radar detection is ensured while increasing a spectrum efficiency in a radar network. The method comprises generating a set of frequency-modulation waveforms, generating an orthogonal code set, generating a set of coded frequency-modulation waveforms through element operation between the set of frequency-modulation waveforms and the orthogonal code set, calculating an objective function for the set of frequency-modulation waveforms with regard to a different set of coded frequency-modulation waveforms and previous sets of coded frequency-modulation waveforms, and selecting a current polyphase code set as an optimized polyphase code set when a result of current calculation is better or smaller than a result of previous iteration, and performing phase perturbation by replacing an element randomly selected in the current polyphase code set selected as the optimized polyphase code set with another admissible-phase element.

Abstract: A pipe according to the present disclosure comprises: a hollow tube body in which fluids of different temperatures pass through the inside and outside thereof; and a coating layer which is provided on an external surface of the hollow tube body, and which has an alloy comprising an amorphous phase, wherein the alloy comprises Fe, and comprises at least one or more first component selected from the group consisting of Cr, Mo and Co, and at least one or more second component selected from the group consisting of B, C, Si and Nb.

Abstract: A brake body according to the present disclosure has a coating layer which contains an iron-based amorphous alloy and is formed on a contact surface at which a friction means rubs against the brake body to generate braking force which the brake body is rotated. The coating layer has a low friction coefficient and thus generates less dust during braking. The coating layer also has high corrosion resistance and wear resistance and may thus guarantee high performance and good price competitiveness when applied to a brake base material produced at low cost.

Abstract: A door handle assembly for a vehicle includes a housing, a handle, and a compression mechanism. The handle is rotatably attached to the housing and rotatable between a resting position and a depressed position. The compression mechanism is configured to allow rotation of the handle between the resting position and the depressed position. The compression mechanism includes a plunger and a biasing member. The plunger is coupled to one of the housing or the handle and translatable between a first position when the handle is in the resting position and a second position when the handle is in the depressed position. The biasing member is coupled to one of the housing or the handle and configured to bias the plunger between the first position and the second position.

Abstract: A thermoelectric device according to one embodiment of the present invention includes a substrate, a first insulating layer disposed on the substrate, a second insulating layer disposed on the first insulating layer and having an area smaller than an area of the first insulating layer, a plurality of first electrodes disposed on the second insulating layer, a plurality of semiconductor structures disposed on the plurality of first electrodes, and a plurality of second electrodes disposed on the plurality of semiconductor structures, wherein the second insulating layer includes an overlapping region in which the plurality of first electrodes, the plurality of second electrodes, and the plurality of semiconductor structures overlap vertically and a protruding pattern protruding from the overlapping region toward a first outer side the substrate.

Abstract: According to an aspect of the present disclosure, a heat-resistant coating composition includes: an inorganic filler which is iron (Fe)-based amorphous alloy powder having an amorphous phase and an average particle diameter of 0.5 ?m to 15 ?m; and a binder, where the coefficient of thermal expansion of the inorganic filler is lower than the coefficient of thermal expansion of the binder.

Abstract: There are provided AI model learning method and system based on self-learning for focusing on specific areas. According to an embodiment, a network learning system includes: a detection module configured to detect a specific area from unlabeled images, and to generate unlabeled area images; a configuration module configured to configure self-learning data by using the generated area images; and a learning module to cause a backbone network to perform self-learning by using the configured self-learning data. Accordingly, an AI model may be trained based on self-learning for focusing on a desired specific area according to a desired purpose, and high-performance analysis specified for various purposes and characteristics of various types of specific areas is possible.

Abstract: A child safety zipper includes a first zipper strip that is attached to an inside wall on one side of a plastic bag and a second zipper strip that is attached to an inside wall on the other side of the plastic bag and is coupled to the first zipper strip to seal the plastic bag.

Abstract: An apparatus for estimating lipid concentration is provided. According to an example embodiment, the apparatus may include a training data collector configured to collect, as training data, a reference lipid concentration measured through blood samples of a plurality of users for a predetermined time period and sensor data obtained through light signals detected from the plurality of users for the predetermined time period and a processor configured to perform preprocessing including a moving average and data augmentation on the obtained sensor data, select a valid variable relevant to a change in lipid concentration based on the preprocessed sensor data and the reference lipid concentration, and generate a lipid concentration prediction model based on the selected valid variable.

Abstract: The present invention provides: a polyimide composite powder which includes 1-30 wt % of a fluorine-based resin filler, and has excellent low dielectric properties; and a production method using water as a dispersion medium. Also provided are a molded body including the polyimide composite powder, and a method for producing same.

Abstract: Disclosed herein is a polyimide film that is obtained by imidizing a polyamic acid solution containing two or more dianhydride components selected from the group consisting of 3,3?,4,4?-benzophenonetetracarboxylic dianhydride (BTDA), 3,3?,4,4?-biphenyltetracarboxylic dianhydride (BPDA), and pyromellitic dianhydride (PMDA), and a diamine component including m-tolidine and p-phenylenediamine (PPD) and has a glass transition temperature (Tg) of 320° C. or higher, a moisture absorption rate of 0.4% or less, and a dielectric dissipation factor (Df) of 0.004 or less.

Abstract: A drum pedal is characterized by including: a base part; a pair of support parts provided at the front side of the base part; a cam part that is axially coupled to the pair of support parts via a main shaft; a hitting part that is axially coupled to the pair of support parts via the main shaft and disposed to be adjacent to the cam part; a pedal part of which one end is coupled to the rear side of the base part and which is formed to extend in the direction of the front side of the base part; and a power transmission part that connects the cam part and the pedal part and rotates the main shaft and the cam part according to a load applied to the pedal part, wherein at least two different power transmission parts can be selectively coupled to the cam part.

Abstract: There are provided a method and a system for image segmentation utilizing a GAN architecture. A method for training an image segmentation network according to an embodiment includes: inputting an image to a first network which is trained to output a region segmentation result regarding an input image, and generating a region segmentation result; and inputting the region segmentation result generated at the generation step and a ground truth (GT) to a second network, and acquiring a discrimination result, the second network being trained to discriminate inputted region segmentation results as a result generated by the first network and a GT, respectively; and training the first network and the second network by using the discrimination result. Accordingly, region segmentation performance of a semantic segmentation network regarding various images can be enhanced, and a very small image region can be exactly segmented.

Abstract: A thermoelectric element according to one embodiment of the present disclosure includes a first substrate, a first resin layer disposed on the first substrate, a first electrode disposed on the first resin layer, a P-type thermoelectric leg and an N-type thermoelectric leg disposed on the first electrode, a second electrode disposed on the P-type thermoelectric leg and the N-type thermoelectric leg, a second resin layer disposed on the second electrode, and a second substrate disposed on the second resin layer, wherein at least one of the first electrode and the second electrode includes a copper layer, first plated layers disposed on both surfaces of the copper layer, and second plated layers disposed between both surfaces of the copper layer and the first plated layers, materials of the first plated layer and the second plated layer are different from each other, and the first plated layer has a melting point greater than or equal to 300° C.

Abstract: A thermoelectric element according to one embodiment of the present disclosure includes a first substrate, a first insulating layer disposed on the first substrate, a second insulating layer disposed on the first insulating layer, a first electrode disposed on the second insulating layer, and a semiconductor structure disposed on the first electrode, wherein the first insulating layer includes an uneven portion, a partial region of the first electrode is buried in the second insulating layer, the second insulating layer includes a concave portion which is concave in a direction toward the first insulating layer from a side surface of the first electrode, and the concave portion vertically overlaps the uneven portion.

Abstract: A drum pedal is characterized by including: a base part; a pair of support parts provided at the front side of the base part; a cam part that is axially coupled to the pair of support parts via a main shaft; a hitting part that is axially coupled to the pair of support parts via the main shaft and disposed to be adjacent to the cam part; a pedal part of which one end is coupled to the rear side of the base part and which is formed to extend in the direction of the front side of the base part; and a power transmission part that connects the cam part and the pedal part and rotates the main shaft and the cam part according to a load applied to the pedal part, wherein at least two different power transmission parts can be selectively coupled to the cam part.