Abstract: The present invention provides a compound of chemical formula 1, a compound of chemical formula 3, compound [212], compound [224], or compound [228], a pharmaceutically acceptable salt thereof, a stereoisomer thereof, a hydrate thereof, or a solvate thereof, and a pharmaceutical composition comprising same. The pharmaceutical composition has excellent antiviral efficacy, thereby having a preventive or treatment effect on viral infectious disease such as SARS-COV-2, and exhibits an inhibitory effect on IL-5 expression and thus has a preventive or treatment effect on respiratory disease or allergic disease.

Abstract: A lead supply system according to an embodiment of the present invention may supply the lead so as to be connected to an electrode tab. The lead supply system may include: a seating part on which the lead is seated; a vision sensor that photographs the lead at an upper side of the seating part; an alignment mechanism that adjusts the seating part so as to align the lead on the basis of vision data photographed by the vision sensor; and a supply device that picks up the lead from the seating part so as to supply the lead to a position at which the lead is connected to the electrode tab.

Abstract: The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent device comprising the same. It is possible to provide an organic electroluminescent device which can be deposited at a low deposition temperature and/or in which clogging is reduced.

Abstract: The present invention provides a novel Lactobacillus sp. strain, which has high antibacterial activity against various pathogenic bacteria, including bacteria associated with fish diseases and dental cavities, inhibits the production of melanin and promotes the synthesis of collagen, and thus can be utilized as a material for a variety of foods and medicines, and the use thereof.

Abstract: An organic light emitting diode (OLED) and an organic light emitting device (e.g., a display device or a lighting device) comprising the OLED are described. An emissive layer includes a red emitting material layer, a yellow-green emitting material layer and a green emitting material layer disposed sequentially between two electrodes, where each of the emitting material layers has controlled thickness and includes at least one host with controlled energy level. The OLED and the organic light emitting device have improved pure color luminous efficiency and color gamut, as well as luminous efficiency and luminous lifespan.

Abstract: Disclosed is a method of manufacturing a blank for hot stamping, which includes forming a plated layer on a steel plate by immersing the steel plate in a plating bath including aluminum and silicon; and heating the steel plate on which the plated layer is formed at a first temperature for a first time period.

Abstract: Provided is a high-power laser beam transmitter including a depolarizer. The present invention includes a high-power laser generator that generates a high-power laser beam, a beam transmitter that delivers, to an optical fiber, the laser beam emitted from the high-power laser generator, and the optical fiber disposed at the output end of the beam transmitter to receive the laser beam, wherein the beam transmitter includes a plurality of lenses and a depolarizer including a plurality of depolarizers respectively disposed between the plurality of lenses. By disposing the depolarizer and thus reducing the constructive interference occurring when the high-power laser beam is incident on the optical fiber, damage to the optical fiber due to high instantaneous output may be attenuated.

Abstract: Provided is a high-power laser beam transmission device using an index matching fluid. The high-power laser beam transmission device may include an optical fiber transmitting a laser beam, and an index matching fluid disposed at both ends of the optical fiber emitting a laser beam received from the optical fiber. According to the present disclosure, an index matching fluid having a refractive index similar to that of an optical fiber is disposed at both ends of the optical fiber, thereby minimizing a reflection loss.

Abstract: A pre-folding apparatus for a pouch-type battery includes: a main frame, a rib, a pusher support portion, and a pusher. The main frame includes a pair of columns and a horizontal bar configured to connect upper portions of the columns. The rib installed to be fixed across the pair of columns under the horizontal bar has a forming protrusion whose upper end is flat. The pusher support portion disposed above the rib includes a linear driving portion configured to move the pusher support portion in a vertical direction along the columns. Finally, the pusher installed at the pusher support portion is aligned with the forming protrusion.

Abstract: The present invention relates to the use of a composition with beneficial skin bacteria-friendly properties. The composition of the present invention does not inhibit the growth of beneficial skin bacteria, has beneficial skin bacteria-friendly properties, can maintain or promote the growth of beneficial bacteria without addition of active materials such as prebiotics or probiotics, and therefore can be provided as a microbiome cosmetic composition.

Abstract: Disclosed is a cosmetic composition including a Dendrobium candidum flower extract, and specifically relates to a cosmetic composition having an excellent skin improvement effect such as wrinkle improvement, skin brightening, skin trouble improvement, skin moisturizing, etc. Also disclosed is a quasi-drug composition and a food composition, which include a Dendrobium candidum flower extract. The cosmetic composition, which includes a Dendrobium candidum flower extract as an active ingredient, is excellent in wrinkle improvement, skin brightening, skin trouble improvement, or skin moisturizing effect. Specifically, the composition is excellent in collagen synthesis promoting effect, melanin production inhibitory effect, anti-inflammatory effect, and moisturizing effect, and has high utility as a cosmetic composition for wrinkle improvement, skin brightening, skin trouble improvement, or skin moisturizing.

Abstract: A beam homogenizer for surface modification comprises: a first lens array configured to split a laser beam, irradiated from a laser beam irradiation unit, into a plurality of beamlets; a second lens array configured to transmit the plurality of beamlets and comprising a plurality of lenslets corresponding to the first lens array; and a focusing lens configured to focus the plurality of beamlets, transmitted through the second lens array, onto a surface of a target. The beam homogenizer further comprises: a plasma generation-preventing unit disposed between the first and second lens arrays and configured to prevent plasma from being generated in the focal zone of the beamlets; or a damage-preventing unit disposed between the focusing lens and the target and configured to prevent the focusing lens from being damaged by energy generated when the plurality of beamlets is irradiated onto the target.

Abstract: A cosmetic composition comprising a Dimocarpus longan Fruit, Vitex trifolia Fruit and/or Aquilaria agallocha Stem extract as an active ingredient. The cosmetic composition has excellent effects in enhancing skin elasticity, improving wrinkles, moisturizing skin or improving skin troubles. Further, food composition and a quasi-drug composition comprising a Dimocarpus longan Fruit, Vitex trifolia Fruit and/or Aquilaria agallocha Stem extract as an active ingredient are provided.

Abstract: A laser output device includes: a laser oscillator for oscillating a source laser pulse; a pulse extender for temporally extending the source laser pulse oscillated by the laser oscillator; an amplifier for amplifying the laser pulse temporally extended by the pulse extender; the laser pulse filter for filtering a pre-pulse and a post-pulse contained in the amplified laser pulse; and a pulse compressor for temporally compressing the laser pulse which has passed through the laser pulse filter.

Abstract: A beam homogenizer for surface modification comprises: a first lens array configured to split a laser beam, irradiated from a laser beam irradiation unit, into a plurality of beamlets; a second lens array configured to transmit the plurality of beamlets and comprising a plurality of lenslets corresponding to the first lens array; and a focusing lens configured to focus the plurality of beamlets, transmitted through the second lens array, onto a surface of a target. The beam homogenizer further comprises: a plasma generation-preventing unit disposed between the first and second lens arrays and configured to prevent plasma from being generated in the focal zone of the beamlets; or a damage-preventing unit disposed between the focusing lens and the target and configured to prevent the focusing lens from being damaged by energy generated when the plurality of beamlets is irradiated onto the target.