Abstract: A deep learning-based blood pressure estimation system using a photoplethysmography (PPG) signal detection ring is provided. The system may include a server, and the server may include a signal feature extraction component configured to extract PPG features from a PPG signal by using a first deep learning model, a user feature extraction component configured to extract user features, by using a second deep learning model, from a first test PPG signal measured using the PPG signal detection ring, systolic and diastolic test blood pressures measured using a conventional blood pressure monitor simultaneously with the first test PPG signal, and user information, and a blood pressure estimation component configured to estimate systolic and diastolic blood pressures from the PPG features and the user features by using a third deep learning model, wherein the PPG signal is measured using the PPG signal detection ring, and the server receives the PPG signal from the PPG signal detection ring through a terminal.

Abstract: As a tin-silver plating solution that contains a source of tin ions; a source of silver ions (Ag+); and an organic additive including a silver (Ag) complexing agent, a tin carrier, and a crystal grain refiner is provided, in the case of performing high-speed plating using the plating solution, the generation of whiskers is diminished, the composition of silver ions (Ag+) in the tin-silver plating solution is uniformly maintained, and thus a uniform silver composition in the formed tin-silver solder bumps can be achieved.

Abstract: A deep-learning-based atrial fibrillation determination system using a photoplethysmography (PPG) signal detection ring is provided.

Abstract: Provided is a system for estimating oxygen saturation by using a photoplethysmography (PPG) signal sensing ring.

Abstract: The present invention provides a polyimide copolymer containing repeating units having a specific structure derived from monomers synthesized from an epoxy compound, a method for preparing the polyimide copolymer, a photosensitive resin composition, a photosensitive resin film and an optical device including the same.

Abstract: As a tin-silver plating solution that contains a source of tin ions; a source of silver ions (Ag+); and an organic additive including a silver (Ag) complexing agent, a tin carrier, and a crystal grain refiner is provided, in the case of performing high-speed plating using the plating solution, the generation of whiskers is diminished, the composition of silver ions (Ag+) in the tin-silver plating solution is uniformly maintained, and thus a uniform silver composition in the formed tin-silver solder bumps can be achieved.

Abstract: A photosensitive resin composition including a poly(imide-benzoxazine) block copolymer, and a cured film. The poly(imide-benzoxazine) block copolymer included in the photosensitive resin composition enables the formation of a cured film having excellent mechanical and insulation even at a low temperature of less than 200° C.

Abstract: A photosensitive resin composition including a polyamide-imide resin having a specific structure, a film comprising a cured product of the photosensitive resin composition, a method for preparing the film and a method for forming a resist pattern using the photosensitive resin composition.

Abstract: Provided is a system, server, and method for speech recognition capable of collectively setting a plurality of setting items for device control through an utterance of a single sentence provided in the form of natural language. The system includes: a home appliance configured to receive a speech command that is generated through an utterance of a single sentence for control of the home appliance; and a server configured to receive the speech command in the single sentence from the home appliance and interpret the speech command of the single sentence through multiple intent determination.

Abstract: The present invention relates to a pharmaceutical composition for inhibiting rejection of transplanted cells including a high mobility group box 1 A domain (HMGB1A) as an active ingredient. The use of the pharmaceutical composition can minimize immunological rejection, which may occur upon cell transplantation, and increase the success rate of cell transplantation.

Abstract: The present invention provides a polyimide copolymer containing repeating units having a specific structure derived from monomers synthesized from an epoxy compound, a method for preparing the polyimide copolymer, a photosensitive resin composition, a photosensitive resin film and an optical device including the same.

Abstract: Provided is a system, server, and method for speech recognition capable of collectively setting a plurality of setting items for device control through an utterance of a single sentence provided in the form of natural language. The system includes: a home appliance configured to receive a speech command that is generated through an utterance of a single sentence for control of the home appliance; and a server configured to receive the speech command in the single sentence from the home appliance and interpret the speech command of the single sentence through multiple intent determination.

Abstract: The present invention relates to an intranasal pharmaceutical composition comprising anticancer drug-containing nanoparticles for treating brain diseases. More specifically, the anticancer drug-containing nanoparticles are nasally administered to deliver the anticancer drug to only brain cells, thereby increasing therapeutic effects on brain tumor and reducing cytotoxicity to normal cells by an organic solvent used in the conventional delivery of the anticancer drug.

Abstract: The present invention relates to a nasal administration composition for preventing or treating ischemic cerebrovascular disease, containing a Fas targeting peptide (FTP). When using the pharmaceutical composition or kit of the present invention, a drug can be effectively delivered to brain tissue and the ischemic cerebrovascular disease of a subject can be effectively prevented or treated.

Abstract: A photosensitive resin composition including a polyamide-imide resin having a specific structure, a film comprising a cured product of the photosensitive resin composition, a method for preparing the film and a method for forming a resist pattern using the photosensitive resin composition.

Abstract: The present invention relates to a photosensitive resin composition including a poly(imide-benzoxazine) block copolymer, and a cured film. The poly(imide-benzoxazine) block copolymer included in the photosensitive resin composition enables the formation of a cured film having excellent mechanical and insulation even at a low temperature of less than 200° C.

Abstract: The present invention relates to a method for preparing a polyhedral oligomer silsesquioxane. The preparation method includes the step of reacting a reaction mixture containing at least two types of silane compounds and a tetraalkylammonium hydroxide having 2 to 5 carbon atoms at a temperature of 5° C. or below.

Abstract: A supporting module may include: a supporting frame configured to support an action part of an object; a pressure member connected to the supporting frame and configured to push the action part to rotate when the supporting frame rotates in a first direction; a supporting member configured to pull the action part to rotate when the supporting frame rotates in a second direction; and/or a dispersion member, between the pressure member and the supporting member, configured to disperse force transmitted from the pressure member in a direction perpendicular to a direction of the transmitted force and configured to transmit the dispersed force to the supporting member.

Abstract: According to an aspect of the present invention, it is possible to implement a joint assembly operating similar to a user's actual ankle joint. An ankle joint included in a walking assistant robot is pivotable around a rotation axis located outside the ankle joint.

Abstract: Disclosed is a lithium secondary battery including a positive electrode, a negative electrode, a separator and a nonaqueous electrolyte, wherein the positive electrode includes LiaNixMnyCozO2 (a+x+y+z=2, 0.9?a?1.1, 0?x, 0?y, 0?z) as a positive electrode active material, and wherein the nonaqueous electrolyte includes (i) fluorinated cyclic carbonate expressed by Chemical Formula 1 below, (ii) propionate-based ester expressed by Chemical Formula 2 below, and (iii) non-halogenated carbonate, so that a mixture weight ratio (i:ii) thereof is 20:80 to 50:50: wherein, in Chemical Formula 1, R1, R2, R3 and R4 are independently any one of F, H and methyl group, and at least one thereof is F, wherein, in Chemical Formula 2, R5 is alkyl group having 1 to 5 carbons.