Abstract: Disclosed is a switch circuit for an ultra-high frequency band, which includes a transistor including a first terminal connected to an input stage, a second terminal connected to an output stage, and a gate terminal, an inductor connected to the transistor in parallel, between the input stage and the output stage, a variable gate driver to apply a gate input voltage to the gate terminal and, an input resistor connected between the variable gate driver and the gate terminal. The variable gate driver adjusts the gate input voltage to be in one of a first voltage level for turning on the transistor and a second voltage level for turning off the transistor. The second voltage level varies depending on a capacitance between the first terminal and the second terminal, when the transistor is in a turn-off state.

Abstract: An additive for a photoresist, a photoresist composition for a EUV including the same, and a method for manufacturing a semiconductor device using the same, the additive including a copolymer that includes a first repeating unit represented by the following Chemical Formula 1-1, and a second repeating unit represented by the following Chemical Formula 2, wherein a molar ratio of the first repeating unit to the second repeating unit is 7:3 to 2:8,

Abstract: The present invention relates to an adhesive composition comprising a polyvinyl alcohol and a water-soluble polyphenol compound, to an adhesive comprising the same, and to a manufacturing method therefor and, more specifically, to an adhesive composition, which has little toxicity, can adhere even without a curing process unlike a conventional adhesive, enables the manufacturing of a gel by hydrogen binding characteristics between the polyvinyl alcohol compound and the water-soluble polyphenol compound, and retains adhesive properties in water.

Abstract: Provided are a method and device for predicting a user state according to an embodiment of the present invention. The method for predicting a user state according to an embodiment of the present invention comprises the steps of: acquiring first biometric data for a plurality of users; fine-tuning a prediction model on the basis of the first acquired biometric data and a fixed learning parameter; outputting a predicted user state using a fine-tuned prediction model by inputting a second biometric data for predicting the user state for predicting the user state for at least one user, wherein the fixed learning parameter is extracted on the basis of a first model that is different from the prediction model and trained to predict a user state for the plurality of users by inputting the first biometric data for the plurality of users.

Abstract: The present invention relates to a composition comprising plant extracts. The composition according to the present invention has a skin whitening effect by reducing the total amount of melanin and tyrosinase activity in melanocytes of the skin, promotes skin regeneration and increases skin elasticity or reduces skin wrinkles by promoting collagen synthesis and inhibiting collagenase activity in fibroblasts of the skin, has an anti-inflammatory effect or a skin soothing effect by inhibiting NO generation, increases the amount of moisture in the skin and has a moisturizing effect by promoting generation of hyaluronic acid in fibroblasts, and has an antioxidant effect by scavenging free radicals. In addition, since the composition of the present invention exhibits a broad antibacterial effect against various bacteria, the composition may be used as a cosmetic composition, a pharmaceutical composition, a skin external preparation, or a food composition.

Abstract: The present disclosure provides a method for determining preference implemented by a processor, comprising: providing image content to a user; receiving electroencephalogram (EEG) data and gaze data including a series of gaze position data or gaze speed data which is measured while the content is provided; determining the user's region of interest with respect to the content based on the gaze data; determining a saccade onset time based on the gaze data; extracting EEG data during a time period including the saccade onset time, based on the EEG data; and determining whether the user prefers the region of interest based on the EEG data during the time period, and a device for determining preference using the same.

Abstract: A method for preparing lurasidone hydrochloride by reacting lurasidone free alkali reacts with hydrochloric acid in a mixed solvent of an alcoholic solvent and an alkyl halide solvent.

Abstract: Provided in the present invention are a linear compensation method for a radio frequency amplifier and a magnetic resonance imaging system. The linear compensation method for a radio frequency amplifier includes determining a working voltage of the radio frequency amplifier, determining a corresponding linear compensation value based on the working voltage, and performing linear compensation on the radio frequency amplifier based on the linear compensation value.

Abstract: The present invention relates to an emotion recognition method implemented by a processor. Provided are an emotion recognition method and a device using the same, the emotion recognition method comprising: providing content to a user, receiving biosignal data of a user while the content is being provided, recognizing an emotion of the user with respect to the content by using an emotion classification model trained to classify emotions on the basis of a plurality of biosignal data labeled with emotions.

Abstract: The present disclosure provides a method for determining preference implemented by a processor, comprising: providing image content to a user; receiving electroencephalogram (EEG) data and gaze data including a series of gaze position data or gaze speed data which is measured while the content is provided; determining the user's region of interest with respect to the content based on the gaze data; determining a saccade onset time based on the gaze data; extracting EEG data during a time period including the saccade onset time, based on the EEG data; and determining whether the user prefers the region of interest based on the EEG data during the time period, and a device for determining preference using the same.

Abstract: The present invention relates to a method for preparing an intermediate (Formula IV) of sodium elagolix. The intermediate is prepared by the following route. The method has advantages of simple and safe operation, high yield, less environmental pollution, good economic effect and suitability for industrial production, wherein R represents C1-C4 substituted or unsubstituted benzyl or allyl.

Abstract: The present invention relates to a porous membrane including a plurality of through-type pores, and when the porous membrane is used, a particle to be analyzed and a reactive particle may be reacted one-to-one, thereby increasing the efficiency and accuracy of particle analysis.

Abstract: Disclosed are a semiconductor device capable of reducing parasitic capacitance between adjacent conductive structures and a method for fabricating the same. The semiconductor device includes a plurality of bit line structures each comprising a first contact plug formed over a substrate and a bit line formed over the first contact plug. A spacer structure having air gaps is formed on sidewalls of the first contact plug and on sidewalls of the bit line. An plug isolation layer is formed between the plurality of bit line structures. The isolation layer includes an opening. A second contact plug is formed in the opening and a memory element is formed over the second contact plug.

Abstract: The present invention generally relates to processes for preparing highly pure morphinan-6-one products. The processes involve reducing the concentration of alpha, beta unsaturated ketone compounds present as impurities in morphinan 6 one products or reaction mixtures including morphinan 6 one compounds by treatment with a sulfur-containing compound.

Abstract: Provided are a method and a device for generating a highlight image using biometric data according to the embodiment of the present invention. The embodiment of the present invention provides a method of generating a highlight image using biometric data of a user executed by a processor of a device for generating a highlight image according to the embodiment of the present invention, the method including: providing multimedia content through a head-mounted display (HMD) device configured to acquire biometric data including at least one of user's brainwave and gaze data; acquiring biometric data associated with the multimedia content through the HMD device; detecting at least one partial content noticed by the user on the basis of the acquired biometric data; predicting an emotional state of the user associated with the detected at least one partial content; and generating a highlight image according to the predicted emotional state.

Abstract: The present application relates to a method (I) for preparing a brivaracetam intermediate, comprising the steps of dissolving the compound represented by B-P and 1S,2S-diphenylethylenediamine in a solvent for resolution, crystallizing, filtering, and recrystallizing to obtain the compound represented by B-Q, which is then converted to the brivaracetam intermediate represented by B-R. This method can effectively resolve the compound represented by B-P. The present application also provides a method for preparing brivaracetam using the compound represented by B-R. The method can separate the effective components only through simple steps such as extraction, washing, drying, and concentration without requiring use of chiral chromatography column to separate isomers in the preparation process, and thus the separation process is simple, greatly reducing the production cost of brivaracetam.

Abstract: The present application relates to a method for citalopram intermediate citalopram diol. The method comprises: first mixing two Grignard reagents required for a reaction; then mixing the mixed Grignard reagents with a raw material 5-cyanophthalide in a temperature-controllable micromixer to obtain a reaction solution; then subjecting the reaction solution to the reaction by means of a reactor to obtain a citalopram diol reaction solution; and then performing operations such as quenching, concentration, extraction, acidification, and crystallization to obtain a qualified product. The citalopram diol provided in the present invention has good selectivity, high yield, high safety, safety and reliability, and little sewage discharge, and is suitable for industrial production.

Abstract: The present application provides a switching power supply and a magnetic resonance imaging system. The switching power supply is used for supplying power to a radio frequency coil control device, wherein the radio frequency coil control device is used for controlling a flow direction of radio frequency power output by a radio frequency amplifier of the magnetic resonance imaging system. Moreover, the switching power supply comprises a first power unit, a second power unit, and an air-cored transformer, the second power unit and the first power unit being electrically coupled through the air-cored transformer, wherein the switching power supply is configured to operate at a preset frequency, and frequency multiplication of the preset frequency is beyond a reception bandwidth of the magnetic resonance imaging system.

Abstract: Provided are a feed additive composition for cattle including N-acetyl-L-tryptophan (NALT) as an active ingredient, and more particularly, a feed additive composition including N-acetyl-L-tryptophan as an active ingredient for reducing temperature stress of cattle, increasing average daily gain of cattle, and increasing feed intake of cattle; a feed including the feed additive composition for cattle; and methods of reducing temperature stress of cattle, increasing average daily gain of cattle, and increasing feed intake of cattle, the methods including feeding the cattle with the feed additive composition or feed for cattle including N-acetyl-L-tryptophan as an active ingredient.

Abstract: Provided are a feed additive composition for dairy cattle including N-acetyl-L-tryptophan (NALT), and more particularly, a feed additive composition including N-acetyl-L-tryptophan as an active ingredient for increasing feed intake of dairy cattle, increasing weight of calves born from dairy cattle, increasing milk yield of dairy cattle, increasing milk protein yield of dairy cattle, and enhancing immunity of calves born from dairy cattle; a feed including the feed additive composition for dairy cattle; and methods of increasing feed intake of dairy cattle, increasing weight of calves born from dairy cattle, increasing milk yield of dairy cattle, increasing milk protein yield of dairy cattle, enhancing immunity of calves born from dairy cattle, and breeding dairy cattle, the methods including feeding the dairy cattle with the feed additive composition or feed for dairy cattle including N-acetyl-L-tryptophan as an active ingredient.