Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.

Abstract: A distributed antenna system of the present invention implements duplication by a method of configuring a first headend unit and a second headend unit in an active state or in a standby state and connecting a hub unit or a remote unit to the first headend unit and the second headend unit and by a method of connecting, through a redundancy link, a hub unit or remote units of a branch group branched from and connected to each headend unit, activating the redundancy link according to the control of an active headend unit when an error occurs in a frame transmission path, and changing logical port states of a hub unit or remote units that cannot transmit frames due to the error in order to change the frame transmission path so that frame transmission is possible through the activated redundancy link.

Abstract: A method for preparing a silicon anode active material in which a nano-silicon mixture is inserted into pores of coffee grounds according to the present disclosure can contribute to the protection of the natural environment through the preparation of a high-capacity silicon anode active material for a lithium secondary battery, which is prepared using coffee grounds that are an environmental pollutant, and has an effect of lowering the preparation cost of a lithium secondary battery anode material with the high-capacity silicon anode active material using coffee grounds by including the steps of: a) preparing nano-silicon; b) preparing an anionic surfactant; c) preparing silane; d) preparing a mixed dispersion based on ultrapure distilled water; e) drying and preparing coffee grounds; f) mixing polyvinyl alcohol into a mixed dispersion; g) mixing polyamic acid into the mixed dispersion; h) mixing graphite into the mixed dispersion; i) mixing vegetable oil into the mixed dispersion; j) final mixed dispersion h

Abstract: A hidden lighting lamp uses a color conversion material and is applied to a vehicle. A color conversion member is spaced apart from a light source by a light source air gap (La) such that the color conversion member is integrally engaged with a lens for projecting light of the light source to the outside or such that the color conversion member is spaced apart from the lens by a lens air gap (Lb). Hidden lighting without deterioration of optical efficiency of LED light from the light source is thereby implemented. One or more of a black painting, a coating layer, an application layer, and a deposition layer are provided, thereby providing concealment of the lamp inner space of the lens, anti-peeling of a deposit, and diversity of fluorescent color.

Abstract: A multi-faceted reflective hidden lighting lamp applied to a vehicle may block a portion of external light and repeatedly reflect internal light in two or more steps with a reflective surface on one side surface of a light reflective portion having a triangular sawtooth shape formed on a lens in a direction facing a light source and a transmissive surface on the other side surface thereof in an internal space of the lamp, and form a reflective layer on the reflective surface in painting/deposition/plating processes, a laser perforation process, a masking process, and a film insert process to reduce a color conversion material for the same color conversion effect and increase the utilization of an overlap skin portion of the lens, increasing the light blocking ability for a region other than the region required by regulations in addition to increasing the transmissive/light-receiving ability for the region required by regulations.

Abstract: A multi-faceted reflective hidden lighting lamp applied to a vehicle may block a portion of external light and repeatedly reflect internal light in two or more steps with a reflective surface on one side surface of a light reflective portion having a triangular sawtooth shape formed on a lens in a direction facing a light source and a transmissive surface on the other side surface thereof in an internal space of the lamp, and form a reflective layer on the reflective surface in painting/deposition/plating processes, a laser perforation process, a masking process, and a film insert process to reduce a color conversion material for the same color conversion effect and increase the utilization of an overlap skin portion of the lens, increasing the light blocking ability for a region other than the region required by regulations in addition to increasing the transmissive/light-receiving ability for the region required by regulations.

Abstract: The present invention relates to a method for controlling an ultrafast chemical reaction using a microfluidic reactor, and more specifically, the present invention relates to a method for controlling an ultrafast chemical reaction such as the Fries rearrangement reaction and the like by using a microfluidic reactor by the 3D metal printing technique.

Abstract: The present invention relates to a microfluidic reactor for controlling a chemical reaction and a chemical reaction control method using the same, and more specifically provides a microfluidic reactor capable of controlling a chemical reaction on an expanded scale and a microfluidic reaction device including the same. In addition, the present invention provides an ultrafast synthesis method for controlling unstable intermediates using the microfluidic reactor and microfluidic reaction device.

Abstract: Proposed are an automated microreactor for effective optimization of a high-speed chemical reaction, and a method of optimizing a high-speed chemical reaction using the same. The automated microreactor includes a raw material supply unit including a plurality of flow rate controllers that supply a plurality of raw materials and control flow rates of the plurality of raw materials, an intermediate reaction unit including a plurality of micromixers for intermediate that generate a first mixture and a plurality of tubular reactors for intermediate that generate an intermediate product, an intermediate reaction control unit including a valve member, and a product reaction unit including a product micromixer that produces a second mixture and producing a product, through which optimal synthesis conditions (optimal temperature, flow rate, reaction volume and organolithium reagent type) can be achieved to obtain the highest yield in a short time.

Abstract: Provided is a method of manufacturing a module structure for photomicro-reactors. The method of manufacturing a module structure for photomicro-reactors according to an aspect of the present invention, which is a method of manufacturing the module structure for photomicro-reactors inside which a reactant and a photocatalyst flow and photochemically react, includes mixing a polymer and a photoinitiator to prepare a photocurable resin, exposing one region of a surface of the photocurable resin to ultraviolet light to form a unit layer having a predetermined thickness, placing the photocurable resin on an upper side of the unit layer, and forming and stacking a plurality of the unit layers by repeatedly performing the forming of the unit layer and the placing of the photocurable resin to form the module structure.

Abstract: The present invention relates to a parallel synthesis method and synthesizer of a compound library, and more specifically provides a parallel synthesis method and synthesizer of a compound library, which uniformly distribute a first reactant and perform independent reactions in separate spaces, and since it is possible to confirm the results for various reaction variables at once, the synthesis time of the compound library can be reduced with a high synthesis yield of the product.

Abstract: The present invention relates to a method for controlling an ultrafast chemical reaction using a microfluidic reactor, and more specifically, the present invention relates to a method for controlling an ultrafast chemical reaction such as the Fries rearrangement reaction and the like by using a microfluidic reactor by the 3D metal printing technique.

Abstract: The present invention relates to a porous microsphere comprising a mussel adhesive protein and a method of preparing the same. The porous microsphere comprising the mussel adhesive protein according to the present invention is capable of minimally invasive bio-injection through syringes to efficiently deliver therapeutic stem cells to the sites of tissue defects as cell carriers. Further, the present invention may be widely applied to scaffolds for tissue engineering, drug carriers, or the like, which may be suitably applied to the size of the defected site of tissue.

Abstract: The present invention relates to an electroporation device comprising: a droplet driving electrode which is in contact with and charges a first droplet containing cells and a second droplet containing a material to be delivered into cells and combines the first droplet and the second droplet, thereby generating a mixed droplet; and an electroporation electrode which applies voltage to the mixed droplet so as to perform electroporation inside the mixed droplet; to an electroporation apparatus comprising the electroporation device; to an electroporation method using the device; and to a method for transferring a material into cells.

Abstract: A hydrogenation catalyst and a method of hydrogenating a hydrocarbon compound as a substrate using the same are provided. The hydrogenation catalyst includes inorganic nanoparticles and a nitrogen-doped reduced graphene oxide support for supporting the inorganic nanoparticles, and the hydrocarbon compound is derived from a biomass and contains a functional group. Therefore, the hydrogenation catalyst which exhibits a high conversion rate and high selectivity, is stable, and can be easily separated after a hydrogenation reaction, and whose catalytic activities are not significantly altered even when recovered and repeatedly recycled can be provided. The method of hydrogenating a hydrocarbon compound in which hydrogen can be directly produced in a reactor using formic acid as a hydrogen source without supplying additional hydrogen gas and simultaneously be used under normal pressure can also be provided.

Abstract: This invention relates to a vertically aligned mesoporous silicate film with site-selective metal deposition from a single polymeric precursor and to diverse catalytic applications thereof. There is an innovative approach of a single precursor to manufacture a vertically aligned mesoporous silicate thin film having high thermal and chemical resistance on a large-area silicon wafer (2 cm×3 cm). A precisely designed organic-inorganic block copolymer (BCP) polyethyleneoxide-ss-polyvinylcyclicsilazane (PEO-ss-PVCSZ) with a disulfide bridge that is chemically cleavable is newly synthesized as the single precursor for an oriented silicate nanoporous film, and using such a precursor, solvent annealing, self-assembling, block cleaving treatment, and then hydrolysis conversion of a polymer into a siliceous phase at room temperature are carried out, thus directly forming a mesostructure on the substrate.

Abstract: A hydrogenation catalyst and a method of hydrogenating a hydrocarbon compound as a substrate using the same are provided. The hydrogenation catalyst includes inorganic nanoparticles and a nitrogen-doped reduced graphene oxide support for supporting the inorganic nanoparticles, and the hydrocarbon compound is derived from a biomass and contains a functional group. Therefore, the hydrogenation catalyst which exhibits a high conversion rate and high selectivity, is stable, and can be easily separated after a hydrogenation reaction, and whose catalytic activities are not significantly altered even when recovered and repeatedly recycled can be provided. The method of hydrogenating a hydrocarbon compound in which hydrogen can be directly produced in a reactor using formic acid as a hydrogen source without supplying additional hydrogen gas and simultaneously be used under normal pressure can also be provided.

Abstract: An RFID tag includes: an antenna receiving an RF signal from a reader; an AFE (analog front end) generating voltage using the RF signal; and one or more switches interposed between the antenna and the AFE and controlling the connection between the antenna and the AFE through the switch operation.

Abstract: Disclosed are a printing plate and a mirror thereof, the printing plate including: printing portions for transferring an immersed solution, the printing portions being formed flat and arranged at regular intervals on one side of an upper part of the printing plate; and non-printing portions corresponding to a remaining area other than the printing portions, the non-printing portions being formed with at least two concavities and convexities respectively and arranged at regular intervals on the other side of the upper part of the printing plate.

Abstract: Provided are a backlight unit capable of improving light efficiency and acquiring a high-luminance image by implementing a color image without using a color filter having the large light loss and a liquid crystal display including the same. The backlight unit includes: a white light source generating white light, a light guide plate into which the white light is inputted, a blue phosphor sheet formed above the light guide plate and transmitting the white light, and a multi-color phosphor sheet formed on the same plane above the blue phosphor sheet and including a plurality of red phosphor layers, green phosphor layers, and transparent layers which transmit the light transmitted through the blue phosphor sheet.