Abstract: The present invention relates to a novel coronavirus recombinant spike protein, a polynucleotide encoding the same, a vector comprising the polynucleotide, and a vaccine for preventing or treating coronavirus infection, comprising the vector. The coronavirus recombinant spike protein of the present invention is stable and thereby not easily decomposed in cells, and effectively activates immune cells thereby resulting in a high antibody production amount and T cell reactivity. It was confirmed that the vector of the present invention exhibits a high antigen expression level and thereby has a high antibody production amount and T cell reactivity, has a long antibody production period and expression period, and does not show liver toxicity. Accordingly, the vector of the present invention can be helpfully used as a vaccine for preventing or treating coronavirus infection.

Abstract: A method for preparing hydrogen gas includes a decomposition step, a first adsorption step, a second adsorption step, a first regeneration step, a third heat-exchange step, and a second regeneration step.

Abstract: Disclosed is a method for improving the productivity of 2?-fucosyllactose (2?-FL) through enzymatic treatment. Lactose used as a substrate in the stationary phase during culture is degraded by treatment with a small amount of enzyme, the resulting glucose is consumed to produce guanosine diphosphate-L-fucose as a precursor of 2?-fucosyllactose, and the use of lactose left after culture can be maximally utilized for the production of 2?-fucosyllactose. As a result, it is possible to increase the productivity of 2?-fucosyllactose in an economically efficient manner because additional glucose is not required while minimizing by-products.

Abstract: A three-dimensional semiconductor device includes a peripheral circuit device layer that includes a page buffer area, a pass transistor area adjacent to the page buffer layer, and a logic transistor area adjacent to the pass transistor area in the first direction, and a memory cell device layer that includes a cell area and a staircase area extending from the cell area. The peripheral circuit device layer includes transistors, peripheral circuit via plugs, and peripheral circuit interconnection layers on a substrate. The memory cell device layer includes word line stack including interlayer insulating layers and word lines alternately stacked, the word line stack including end portions stacked in a staircase in the staircase area; a bit line array including bit lines arranged in the cell area; and word line pillars electrically connected to the end portions of the word lines in the staircase area, respectively.

Abstract: A semiconductor device includes a first semiconductor chip including a memory cell array and a plurality of bit lines; a second semiconductor chip including a peripheral circuit, and bonded to the first semiconductor chip; and a shielding member including a link pattern that is configured in a bonding metal layer of any one of the first semiconductor chip and the second semiconductor chip, and has a grid shape or stripe shapes, and a plurality of island patterns that are configured in a bonding metal layer of the other one of the first semiconductor chip and the second semiconductor chip, and bonded to the link pattern.

Abstract: A drying system, as provided herein, may include a cabinet, an air outlet grate, an air inlet grate, a door, a vapor compression assembly, and an ultraviolet light source or tank capacitance circuit. The cabinet may define a static chamber along the airflow path for the receipt of articles therein. The air outlet grate may be upstream from the static chamber along the airflow path to direct air thereto. The air inlet grate may be downstream from the static chamber along the airflow path to direct air therefrom. The door may be attached to the cabinet to selectively restrict access to the static chamber. The vapor compression assembly may be attached to the cabinet and defining a refrigerant flow path spaced apart from the static chamber. The vapor compression assembly may include a compressor, an evaporator, and a condenser.

Abstract: Provided are a gate driver circuit used in a display device and a method for driving the same. Charge sharing is adaptively achieved according to the phase of a clock signal outputted by the output ends of buffers in the gate driver circuit, so that power consumed when a gate line is driven can be reduced.

Abstract: A semiconductor device includes a stack including a plurality of electrode layers which include a plurality of capacitor first electrode layers and a plurality of capacitor second electrode layers alternately stacked on a substrate and a plurality of dielectric layers which are disposed alternately with the plurality of electrode layers; a first conductive pillar passing through the stack and coupled to the plurality of capacitor first electrode layers; a second conductive pillar passing through the stack and coupled to the plurality of capacitor second electrode layers; and a plurality of insulation layer patterns insulating the first conductive pillar and the plurality of capacitor second electrode layers from each other and insulating the second conductive pillar and the plurality of capacitor first electrode layers from each other.

Abstract: Disclosed is a display device including a substrate including display and non-display areas, a first thin-film transistor located in the non-display area, and second and third thin-film transistors located in the display area. The first thin-film transistor includes a first semiconductor pattern, a first gate electrode overlapping the first semiconductor pattern, and first source and first drain electrodes connected to the first semiconductor pattern. The second thin-film transistor includes second and third semiconductor patterns including a first oxide semiconductor, a second gate electrode overlapping the second semiconductor pattern, a third gate electrode overlapping the third semiconductor pattern, and second source and second drain electrodes connected to the second and third semiconductor patterns.

Abstract: An imaging lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens, sequentially disposed at intervals from an object side of the imaging lens system. The imaging lens system satisfies 1.5<Nd5<1.6, 30<V5<50, and TTL/2IH<0.730, where Nd5 is a refractive index of the fifth lens, V5 is an Abbe number of the fifth lens, TTL is a distance from an object side surface of the first lens to an imaging plane, and 2IH is a diagonal length of the imaging plane.

Abstract: The present invention relates to the development of a composition for the treatment of novel SARS-coronavirus-2 infection. The drug efficacy was evaluated through CPE (Cytopathic Effect)-based assay method that measures how long the cells survive by infecting SARS-CoV-2 after receiving a drug library previously approved as a treatment for a specific disease from the Korea Chemical Bank and treating Vero cells with the drug, and an image-based assay that measures how much virus is reduced in infected cells. Through this, 16 kinds of drugs effective in the treatment of SARS-CoV-2 were re-positioned.

Abstract: A display device includes a substrate, a plurality of transistors disposed on the substrate, a light-emitting device connected to the transistors, a first partition wall disposed above the light-emitting device to partition an emission area, and a second partition wall overlapping the first partition wall. The transistor and the light-emitting device are connected to each other through a contact hole, and an entirety of an area of the contact hole overlaps the first partition wall.

Abstract: A display device includes a first electrode and a second electrode disposed on a substrate; a first bank disposed on the substrate, the first bank protruding in a thickness direction of the substrate; a light emitting element disposed on the first electrode and the second electrode; a reflective electrode disposed on the first bank; a second bank disposed on the first bank; and a color conversion layer disposed in an area surrounded by the second bank.

Abstract: Provided is a composition for treating coronavirus disease-19 (Corona19, COVID-19), including a phenanthroindolizidine and phenanthroquinolizidine alkaloid derivative compound, an optical isomer thereof, or a pharmaceutically acceptable salt thereof as an active ingredient. According to the presently claimed subject matter, the phenanthroindolizidine and phenanthroquinolizidine alkaloid derivative compound has excellent antiviral activity against COVID-19, and therefore can be effectively used as a composition for treating SARS coronavirus infection including COVID-19.

Abstract: A memory device may include an electrode structure including a plurality of electrode layers and a plurality of interlayer dielectric layers that are alternately stacked on a substrate; a trench in the electrode structure, and having an upper sidewall, a lower sidewall and a horizontal portion that couples the upper sidewall to the lower sidewall and that is parallel to a top surface of the substrate; a dielectric layer in the trench; and a slimming hole in the electrode structure having a sidewall of the trench and a region of the dielectric layer, and having a bottom surface disposed on an electrode layer on which the horizontal portion of the trench is positioned.

Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as defined in the detailed description.

Abstract: According to one embodiment of the present disclosure, there is provided a DC-DC converter including a slope compensation circuit configured to generate a sawtooth-shaped compensation ramp wave to output a slope voltage, a current sensing circuit configured to receive and convert a sensing current to output the converted current, and an adder configured to receive the slope voltage and the sensing current, wherein the adder includes a sensing resistor and a sensing switch, one end of the sensing resistor is connected to the current sensing circuit and the other end of the sensing resistor is connected to the sensing switch and the slope compensation circuit, and one end of the sensing switch is connected to the sensing resistor and the slope compensation circuit and the other end of the sensing switch is connected to the ground.

Abstract: The present disclosure relates to an aluminum-based plated steel that is provided for vehicles by hot forming, an aluminum-based alloy plated steel manufactured using the same, and method of manufacturing thereof.

Abstract: The present disclosure relates to an acetohydroxy acid synthase variant, a polynucleotide encoding the variant, a microorganism including the variant, and a method of producing L-isoleucine using the microorganism.

Abstract: An electroluminescent display apparatus may include a first semiconductor pattern including a first channel region and a first conductive region which is a region other than the first channel region, a first gate electrode overlapping the first channel region of the first semiconductor pattern with a first gate insulation layer therebetween, a first interlayer insulation layer covering the first semiconductor pattern, and the first gate electrode, a second semiconductor pattern disposed on the first interlayer insulation layer, the second semiconductor pattern including a second channel region and a second conductive region which is a region other than the second channel region, and a second gate electrode overlapping the second channel region of the second semiconductor pattern with a second gate insulation layer therebetween.