Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural. Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.

Abstract: A multi-band shark fin antenna for a vehicle comprises: a base; a substrate coupled to an upper portion of the base and on which feed lines are formed; and a first antenna frame coupled on the substrate and to which a plurality of radiators are coupled, wherein the first antenna frame comprises: a first radiator coupling part to which a first radiator is coupled; and a first support extending from the first radiator coupling part and supporting the first radiator coupling part, wherein an antenna coil is coupled to an outer circumferential surface of the first support, and the antenna coil is electrically connected to the first radiator.

Abstract: Proposed is a two-pot-two-step simultaneous conversion system for carbon dioxide and a hydrocarbon containing at least one hydroxy group and a method thereof. The system integrates a process of producing a metal salt that is a dehydrogenated form of the hydrocarbon, hydrogen, and water by reacting a hydrocarbon containing at least one hydroxy group in the presence of water and a metal oxalate, and a process of converting carbon dioxide or carbon dioxide-derived carbonate into formate by hydrogenation, thereby increasing energy efficiency while maintaining a higher hydrocarbon conversion rate and a higher carbon dioxide conversion rate than the one-pot conversion system for hydrocarbon and carbon dioxide.

Abstract: A method of classifying an object according to an embodiment includes extracting a first feature by transforming rectangular coordinates of points included in the box of the object, obtained from a point cloud acquired using a LiDAR sensor, into complex coordinates and performing Fast Fourier Transform (FFT) on the complex coordinates, obtaining an average and a standard deviation as a second feature, the average and the standard deviation being parameters of a Gaussian model for the points included in the box of the object, and classifying the type of object based on at least one of the first feature or the second feature.

Abstract: An apparatus for training a document summarization model includes a token generation unit, a named entity recognition unit, and a model training unit. The token generation unit generates document tokens and summarization tokens. The named entity recognition unit assigns named entity token status to a summarization token, recognized as a named entity through NER, and assigns non-named entity token status to the other tokens. The model training unit obtains feature vectors by inputting the plurality of document tokens into an encoder inside a document summarization model, obtains a first loss related to the named entity token, a second loss related to the other tokens, and a total loss using a weighted value by inputting the feature vectors, the summarization tokens, the named entity token, and the non-named entity token into a decoder inside the document summarization model, and trains the document summarization model on the basis of the total loss.

Abstract: Proposed is a connector apparatus with a switch for improving contact reliability, the connector apparatus being capable of enabling an operator to electrically test proper coupling of a connector position assurance member. When the connector position assurance member is completely coupled to a first housing, a pair of switches are stably brought into contact with each other in a state of being inserted into a switch guide recess formed in a second leg portion. Therefore, the pair of switches can be safely protected from foreign substances, etc., thereby improving the contact reliability of the first and second switches.

Abstract: An electronic device is disclosed. An electronic device according to the present invention includes a display, first to third optical elements which are disposed to be dispersed on the display to emit red (R) light, green (G) light, and blue (B) light, an optical system which is installed in the display to combine light emitted from the first to third optical elements into the display, and a pinhole mirror which is installed on an illumination path of light combined by the optical system to reflect the combined light to eyeballs of a user. An electronic device according to the present invention may be associated with an artificial intelligence module, robot, augmented reality (AR) device, virtual reality (VR) device, and device related to 5G services.

Abstract: The present invention relates to a metal-organic framework (MOF) having a three-dimensional porous structure and being represented by the chemical formula of [Al8(OH)a(BTC)b(IPA)c(L)d], a preparation method therefor, and a use thereof as an adsorbent and a catalyst.

Abstract: An apparatus for training a dialogue summary model according to an embodiment includes a parameter transferer configured to transfer one or more learning parameter values of a pre-trained natural language processing model to a sequence-to-sequence-based dialogue summary model, and a model trainer configured to train the dialogue summary model by using the transferred learning parameter values as initial values for learning parameters of each of an encoder and a decoder in the dialogue summary model.

Abstract: An electronic device comprising: a first display panel having a first side facing an eye of a user; a second display panel having a first side disposed at a second side of the first display panel; a first optical element disposed at the first display panel to emit one of red (R), green (G), or blue (B) light; a second optical element disposed at the first display panel together with the first optical element and configured to emit another one of the R, G, or B light; and a third optical element disposed at the second display panel to emit the remaining one of the R, the G, and the B light. The electronic device according to the present disclosure may be associated with an artificial intelligence module, a robot, an augmented reality (AR) device, a virtual reality (VR) device, and a device related to 5G services and the like.

Abstract: A light source unit for a display device includes: a printed circuit board including a soldering pad located on a substrate of glass and including a copper layer, and a first diffusing barrier pattern located on the soldering pad and including a molybdenum alloy; and a light emitting diode mounted on the soldering pad through a solder resist. In one embodiment, the printed circuit board is a glass printed circuit board.

Abstract: An embodiment device for detecting a boundary of a road in a 3D point cloud using a cascade classifier includes a rule-based classifier configured to determine whether a received LiDAR cluster has a likelihood of becoming a candidate for the boundary of the road using a box parameter surrounding a point cloud constituting the LiDAR cluster and a point parameter, and a learning-based classifier configured to apply a machine-learning scheme to the LiDAR cluster selected as the candidate for the boundary of the road by the rule-based classifier to determine the LiDAR cluster to be the boundary of the road or an object other than the boundary of the road.

Abstract: Embodiments of the present disclosure pertain to methods of sorption of H2O from an environment by associating the environment with a porous material such that the association results in the sorption of H2O to the porous material. The porous material includes a (M)-2,4-pyridinedicarboxylic acid coordination polymer, where M is a divalent metal ion selected from the group consisting of Mn, Fe, Co, Ni, Mg, and combinations thereof. The coordination polymer has a one-dimensional pore structure and shows reversible soft-crystal behavior. The porous material may be a Mg(II) 2,4-pyridinedicarboxylic acid coordination polymer (i.e., Mg-CUK-1). The methods of the present disclosure may also include one or more steps of releasing the sorbed H2O from the porous material and reusing the porous material after the releasing step for sorption of additional H2O from the environment.

Abstract: A vehicle antenna mounting system, including an antenna circuit board, an antenna base supporting the antenna circuit board, an antenna cover covering the antenna circuit board, and a temporary mounting member temporarily mounting the antenna base on a roof of a vehicle body. The antenna base has a mounting projection protruding downwardly from a bottom surface of the antenna base and a cavity defined in the mounting projection. The temporary mounting member is received in the cavity and the roof has a hole into which the temporary mounting member is inserted.

Abstract: Proposed is a two-component-type epoxy-based coating composition and aerosol-type epoxy-based coating composition for initial fire extinction, using a capsule-type fire extinguishing agent. The two-liquid-type epoxy-based coating composition using a capsule-type fire extinguishing agent for initial fire extinction includes a main agent and a curing agent. The main agent includes 10 to 50 parts by weight of an epoxy binder, 10 to 60 parts by weight of a solvent, 10 to 50 parts by weight of a capsule-type fire extinguishing agent, 5 to 40 parts by weight of a pigment, and 0.01 to 10 parts by weight of an additive. The curing agent includes 30 to 80 parts by weight of a curing agent binder, 10 to 60 parts by weight of a solvent, and 0.01 to 10 parts by weight of an additive. The main agent and the curing agent are mixed in a volume ratio that falls within a range of 1:1 to 10:1.

Abstract: The present invention relates to an organic-inorganic hybrid nanoporous material, maintaining a nanoporous skeleton structure formed by coordination of an organic ligand containing an aromatic compound to a trivalent central metal ion, and further having an intramolecular acid anhydride functional group modified on the aromatic compound of the nanoporous skeleton structure, and thereby exhibits selectivity for olefins, and an adsorbent comprising the same. Specifically, the organic-inorganic hybrid nanoporous material of the present invention exhibits an excellent olefin-selective adsorption capacity through differences in adsorption equilibrium and adsorption rate, and thus can be usefully employed in the separation of C2-C4 hydrocarbons.

Abstract: Embodiments of the present disclosure pertain to methods of sorption of H2O from an environment by associating the environment with a porous material such that the association results in the sorption of H2O to the porous material. The porous material includes a (M)-2,4-pyridinedicarboxylic acid coordination polymer, where M is a divalent metal ion selected from the group consisting of Mn, Fe, Co, Ni, Mg, and combinations thereof. The coordination polymer has a one-dimensional pore structure and shows reversible soft-crystal behavior. The porous material may be a Mg(II) 2,4-pyridinedicarboxylic acid coordination polymer (i.e., Mg-CUK-1). The methods of the present disclosure may also include one or more steps of releasing the sorbed H2O from the porous material and reusing the porous material after the releasing step for sorption of additional H2O from the environment.

Abstract: The present disclosure relates to an organometallic framework modified using a compound having a hydroxyl group (—OH), a catalyst for a hydrogenation reaction including the same, and a method of manufacturing the same. The catalyst according to the present disclosure has high activity to the hydrogenation reaction even at a low temperature of 30 to 40° C., thus making low-grade waste heat usable.

Abstract: Provided are a water and/or alcohol adsorbent including organic-inorganic hybrid nanoporous materials, and use thereof, and more particularly, a water and/or alcohol adsorbent having a high adsorption amount at a low relative humidity or partial pressure, of which desorption/regeneration is possible at a low temperature, the water and/or alcohol adsorbent including organic-inorganic hybrid nanoporous materials having 0.5 to 3 mol of a hydroxyl group (OH) or a hydroxide anion group (OH?) per 1 mol of a central metal ion, and use thereof.

Abstract: The present invention provides an energy-saving air dryer comprising: a compressor for compressing the air in the atmosphere to form compressed air; a heat exchanger which is disposed on one side of the compressor and recovers compression heat from the compressed air; a pre-filter which is disposed on one side of the heat exchanger and removes pollutants from the compressed air; a pair of adsorption towers which communicate with the pre-filter and are filled with an adsorbent, wherein dry air is formed when compressed air flows into the adsorption towers according to the opening and closing of a valve and moisture is adsorbed, or moisture is desorbed from the adsorbent when dry air retaining the compression heat recovered in the heat exchanger is transferred to the adsorption towers; and an after filter which extends from the one side of the adsorption towers and removes pollutants from the dry air from which moisture has been removed.