Abstract: An electronic device may include: a main body including a first surface and a second surface; a first temperature sensor and a second temperature sensor which are provided inside the main body, wherein the second temperature sensor is disposed closer to the surface of the main body than the first temperature sensor; and a processor, which while the second surface of the main body is in contact with a body part of a user, is configured to estimate a heat flux that is generated by body heat, of the user based on a difference between a first temperature measured by the first temperature sensor and a second temperature measured by the second temperature sensor, and measure air temperature based on the estimated heat flux and the second temperature.

Abstract: A method of predicting a blood compound concentration of a target may include receiving, by a system, spectral data associated with a region of the target, using near-infrared (NIR) spectroscopy. The method may include classifying, by the system, each of the plurality of data instances of the spectral data to one of a plurality of labelled classes. The method may include obtaining, by the system, one or more best fit models from a plurality of prediction models based on the classification. The method may include determining, by the system, blood compound concentration values corresponding to each of the one or more best fit models. The method may include predicting, by the system, the blood compound concentration of the target using the blood compound concentration values predicted using the best fit models.

Abstract: Disclosed are a catalyst electrode for a fuel cell, a method for fabricating the catalyst electrode, and a fuel cell including the catalyst electrode. The presence of an ionomer-ionomer support composite in the catalyst electrode prevents the porous structure of the catalyst electrode from collapsing due to oxidation of a carbon support to avoid an increase in resistance to gas diffusion and can stably secure proton channels. The presence of carbon materials with high conductivity is effective in preventing the electrical conductivity of the electrode from deterioration resulting from the use of a metal oxide in the ionomer-ionomer support composite and is also effective in suppressing collapse of the porous structure of the electrode to prevent an increase in resistance to gas diffusion in the electrode. Based on these effects, the fuel cell exhibits excellent performance characteristics and prevents its performance from deteriorating during continuous operation.

Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.

Abstract: An apparatus for obtaining a target signal spectrum includes: a spectrum measurer configured to measure a plurality of spectra from an object; and a processor configured to obtain a difference spectrum matrix by subtracting a reference spectrum from each of the plurality of spectra, and to obtain a spectrum of a target signal based on the obtained difference spectrum matrix.

Abstract: An optical multilayer structure including a hard coating layer, a low-reflective adhesion reinforcement layer, and a water repellent layer on a substrate layer. The optical multilayer structure includes a structure in which a hard coating layer, a low-reflective adhesion reinforcement layer including a siloxane-based compound, and a water repellent layer including an alkoxysilane-based compound containing a fluorine atom are laminated on a substrate layer, thereby having high wear resistance and water contact angle simultaneously.

Abstract: A remote control device for remotely controlling a target device to be controlled is provided.

Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.

Abstract: A display device comprising: a substrate; a plurality of display elements disposed on the substrate; and a diffraction pattern layer disposed on a path of light emitted from the plurality of display elements. The diffraction pattern layer comprises a plurality of diffraction patterns which is disposed with a predetermined pitch, and the plurality of diffraction patterns do not overlap the plurality of display elements; and when a width of a cross section of each of the plurality of diffraction patterns is defined as a length of each diffraction pattern, the predetermined pitch and the length of each diffraction pattern satisfy the following inequation: 0.4?d1/DP1<1, where DP1 denotes the predetermined pitch, and d1 denotes the length of each diffraction pattern.

Abstract: The present invention relates to cosmetic, food, and quasi-drug compositions having antioxidant, anti-inflammatory, and wrinkle or elasticity improvement effects, comprising citrus peel extracts as an active ingredient, which increase phenolic compounds, increase the generation of flavonoid aglycones, and reduce furanocoumarin, a harmful substance, a method for preparing the same, and citrus peel extracts prepared by the method. The present invention has excellent antioxidant, anti-inflammatory, and wrinkle or elasticity improvement effects, and thus can be used as a cosmetic composition, a food composition, and a quasi-drug composition that are safe for the skin and have excellent skin condition improvement effects.

Abstract: An apparatus for estimating body temperature, may include: a photoplethysmogram (PPG) sensor configured to measure a PPG signal by emitting light onto an object and by detecting light scattered or reflected from the object; and a processor configured to estimate a cutaneous blood flow and an energy metabolism of the object based on the PPG signal, estimate a core body temperature of the object based on the cutaneous blood flow and the energy metabolism, and provide notification information on a risk of abnormal body temperature based on the core body temperature.

Abstract: A healthcare apparatus according to an embodiment includes: a plurality of light sources configured to emit light of different wavelengths onto an object; a light detector configured to measure an optical signal of each of the wavelengths by receiving light reflected or scattered from the object; and a processor configured to obtain a blood glucose level and a blood flow index by using the optical signal of each of the wavelengths, and to estimate at least one from among dietary information and dietary metabolism state information by monitoring a blood glucose level change and a blood flow index change after ingestion of a food.

Abstract: An apparatus for estimating body temperature includes: a first temperature sensor configured to measure surface temperature of a wrist of a user; and a processor configured to calculate skin heat flux based on the surface temperature of the wrist, to estimate central wrist temperature of the user based on the surface temperature of the wrist, the calculated skin heat flux, and a blood flow rate and metabolism of the user, and to estimate core body temperature of the user based on the estimated central wrist temperature.

Abstract: An apparatus for estimating body temperature of an object is provided. The apparatus for estimating body temperature includes: a sensor configured to obtain spectra through a plurality of light paths of an object; and a processor configured to obtain a temperature slope between temperatures corresponding to the plurality of light paths based on the spectra of the plurality of light paths and a reference spectrum measured at a reference temperature, and estimate the body temperature of the object based on the temperature slope.

Abstract: The present invention pertains to an anode-less lithium ion battery comprising a) a cathode comprising a cathode current collector and a cathode electro-active material on the cathode current collector; b) an anode current collector; c) a liquid electrolyte composition between the a) cathode and the b) anode current collector; and d) a separator, wherein the c) liquid electrolyte composition comprises i) at least 70% by volume (vol %) of a solvent mixture with respect to the total volume of the electrolyte composition, comprising at least one fluorinated ether compound and at least one non-fluorinated ether compound, and ii) at least one lithium salt.

Abstract: A display panel comprises a first data line, a second data line electrically insulated from the first data line, and a first data connection line electrically connected to the first data line and disposed closer to the second data line than to the first data line in a first direction. The first data line, the second data line, and the first data connection line each comprise a line member extending in a second direction different from the first direction and comprise a first protrusion and a second protrusion both protruding from the line member and being wider than the line member in the first direction.

Abstract: A display device includes a substrate including a first display area, a second display area, and a non-display area, a plurality of first signal lines extending in a first direction and disposed in the first display area, a plurality of second signal lines extending from the non-display area in the first direction and disposed in the second display area, a plurality of connection lines connected to the first signal lines and extending to the non-display area via the first display area and the second display area, and a test circuit portion disposed in the non-display area. At least some of the plurality of connection lines and at least some of the second signal lines are electrically the test circuit portion.

Abstract: The present disclosure relates to a culture composition for detection of P. carotovorum, including pectin, cellobiose, and inositol as active ingredients. P. carotovorum is highly likely to cause soft rot during cultivation as well as storage and transportation such that continuous monitoring is required. In order to solve the issues, the medium composition ensures remarkably outstanding selectivity for P. carotovorum.

Abstract: A display apparatus is provided. The display apparatus may include a light-emitting device disposed on an emission area of a device substrate. An over-coat layer may be disposed between the device substrate and the light-emitting device. The over-coat layer may include an over inclined surface extending along an edge of the emission area. A capacitor electrode may cover the over inclined surface. A first electrode of the light-emitting device may include a capacitor region overlapping with the capacitor electrode. A capacitor insulating layer may be disposed between the capacitor electrode and the capacitor region of the first electrode. Thus, in the display apparatus, an emission area may be increased, the light extraction efficiency may be improved, and color mixing may be prevented.

Abstract: Disclosed is an antioxidant for a polymer electrolyte membrane of a fuel cell including cerium hydrogen phosphate (CeHPO4). The presence of cerium hydrogen phosphate in the antioxidant enhances the dissolution stability of cerium and improves the ability to capture water, leading to an increase in proton conductivity. In addition, the cerium hydrogen phosphate has a crystal structure composed of smaller cerium particles. This crystal structure greatly improves the ability of the antioxidant to prevent oxidation of the electrolyte membrane. Also disclosed are an electrolyte membrane including the antioxidant, a fuel cell including the electrolyte membrane, a method for preparing the antioxidant, a method for producing the electrolyte membrane, and a method for fabricating the fuel cell.