Abstract: A method of manufacturing a perovskite light emitting device using a two-dimensional material capable of implementing the entire visible light region as a light emitting material.

Abstract: A wireless communication device for facilitating wireless communication is provided. The device transmits a training frame, and receives a plurality of feedback frames including channel quality information from a plurality of stations in response to the training frame. The device determines a plurality of groups based on the channel quality information in the plurality of feedback frames. Each of the plurality of groups is associated with a respective one of the plurality of stations and includes an associated station as a primary station and at least one secondary station. The device determines channel capacities of the plurality of groups and selects a group of the plurality of groups based on the channel capacities of the plurality of groups. The device determines users of the selected group as MU-MIMO users and transmits a MU PPDU in MU-MIMO for the users of the selected group.

Abstract: A wireless communication system includes a first transmitter and a second transmitter. For a transmission or reception of data of a first user equipment and data of a second user equipment on resources shared by the first user equipment and the second user equipment, the first transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a first data signal of the first user equipment and a second data signal of the second user equipment, and the second transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a third data signal of the first user equipment and a fourth data signal of the second user equipment.

Abstract: A 5G system comprising at least one antenna element configured to transmit and receive 5G radio frequency signals and at least one electronic component is provided. The antenna element, the electronic component, or both, comprise a polymer composition that includes a liquid crystalline polymer that contains repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more. Further, the polymer composition exhibits a dielectric constant of about 5 or less and dissipation factor of about 0.05 or less at a frequency of 10 GHz.

Abstract: The present disclosure provides a polyalkylene carbonate-based resin having excellent thermal stability, thereby having an improved heat shrinkage phenomenon, and a molded article produced using the same. The polyalkylene carbonate-based resin includes 100 parts by weight of a base resin including a polyalkylene carbonate resin and a polylactide resin, and 5 parts by weight to 10 parts by weight of a heat shrinkage prevention agent, wherein the base resin includes the polyalkylene carbonate resin and the polylactide resin in a weight ratio of 6:4 to 4:6, and the heat shrinkage prevention agent is one or more selected from the group consisting of a polyalkyl(meth)acrylate-based resin, a polyalphaolefin-vinyl acetate-based resin, and a polyoxyalkylene-based resin.

Abstract: Disclosed is a method for deriving a bidirectional prediction weight index of a constructed candidate included in an affine merge candidate list. The method comprises: determining whether a plurality of target control points are available from among control points set for a current block; if the target control points are available, then checking prediction directions and reference pictures of the target control points; and if the prediction directions of the target control points are all bidirectional and the reference pictures of the target control points are the same, then deriving the bidirectional prediction weight index of the constructed candidate from among bidirectional prediction weight index candidates of the target control points.

Abstract: Disclosed is a method for deriving a bidirectional prediction weight index of a constructed candidate included in an affine merge candidate list. The method comprises: determining whether a plurality of target control points are available from among control points set for a current block; if the target control points are available, then checking prediction directions and reference pictures of the target control points; and if the prediction directions of the target control points are all bidirectional and the reference pictures of the target control points are the same, then deriving the bidirectional prediction weight index of the constructed candidate from among bidirectional prediction weight index candidates of the target control points.

Abstract: A negative active material composite includes a core and a coating layer around (surrounding) the core. The core includes amorphous carbon and silicon nanoparticles, the coating layer includes amorphous carbon, and an adjacent distance between the silicon nanoparticles is less than or equal to about 100 nm.

Abstract: A separator for an electrochemical device includes a porous polymer substrate; a first coating layer provided on at least one surface of the porous polymer substrate and containing a first polymer resin of a first solubility in an electrolyte; and a second coating layer provided on the first coating layer and including a second polymer resin of a second solubility in the electrolyte, and inorganic particles, wherein the first solubility is higher than the second solubility in the electrolyte, and the separator is provided on a negative electrode containing a silicon (Si).

Abstract: A foldable electronic device comprising a housing that contains a first housing portion positioned on a first side of a bend axis and a second housing portion positioned on a second opposing side of the bend axis is provided. The first and second housing portions are coupled to a hinge for rotational motion about the bend axis. The hinge comprises a polymer composition that contains a polymer matrix and a plurality of reinforcing fibers distributed within the polymer matrix.

Abstract: Disclosed is a method for deriving a bidirectional prediction weight index of a constructed candidate included in an affine merge candidate list. The method comprises: determining whether a plurality of target control points are available from among control points set for a current block; if the target control points are available, then checking prediction directions and reference pictures of the target control points; and if the prediction directions of the target control points are all bidirectional and the reference pictures of the target control points are the same, then deriving the bidirectional prediction weight index of the constructed candidate from among bidirectional prediction weight index candidates of the target control points.

Abstract: Disclosed are semiconductor devices and fabrication methods for the same. The semiconductor devices may include a bottom electrode, a dielectric layer, and a top electrode that are sequentially stacked on a semiconductor substrate. The bottom electrode includes a first doping region in contact with the dielectric layer, a main region spaced apart from the dielectric layer by the first doping region intervening therebetween, and a second doping region between the first doping region and the main region. Each of the first and second doping regions includes oxygen and a doping metal. In some embodiments, the second doping region may include nitrogen. The main region may be devoid of the doping metal. An amount of oxygen in the second doping region is less than an amount of oxygen in the first doping region.

Abstract: Disclosed is a method for deriving a bidirectional prediction weight index of a constructed candidate included in an affine merge candidate list. The method comprises: determining whether a plurality of target control points are available from among control points set for a current block; if the target control points are available, then checking prediction directions and reference pictures of the target control points; and if the prediction directions of the target control points are all bidirectional and the reference pictures of the target control points are the same, then deriving the bidirectional prediction weight index of the constructed candidate from among bidirectional prediction weight index candidates of the target control points.

Abstract: A polymer composition comprising a dielectric material distributed within a polymer matrix is provided. The dielectric material has a volume resistivity of from about 0.1 ohm-cm to about 1×1012 ohm-cm. wherein the polymer matrix contains at least one thermotropic liquid crystalline polymer, and further wherein the polymer composition exhibits a dielectric constant of about 4 or more and a dissipation factor of about 0.3 or less, as determined at a frequency of 2 GHz.

Abstract: Disclosed is a composition for promoting hair growth and ameliorating, preventing or treating hair loss containing 2?-fucosyllactose (2?-FL) as an active ingredient, and a method for promoting hair growth or ameliorating, preventing or treating hair loss, the method comprising administering to a subject in need thereof 2?-fucosyllactose. Treatment with a combination of testosterone and 2?-fucosyllactose increases hair gloss, increases hair length, reduces a hair loss area, enhances hair cuticles, increases the number and size of hair follicles, and improves expression of proteins and genes related to hair proliferation and growth, compared to treatment with testosterone alone, thus being applicable as a substance for various food and pharmaceutical compositions based on effects of promoting hair growth, improving hair loss, and ameliorating, preventing or treating hair loss.

Abstract: Provided is a method and an apparatus for dry-cleaning an aluminum nitride (AlN) heater for semiconductor fabrication equipment, which may efficiently remove fluorine-containing contaminants generated on the AlN heater during semiconductor fabrication processes, and especially, may effectively and simultaneously remove organic, inorganic metallic, and inorganic contaminants. The method for dry-cleaning an AlN heater for semiconductor fabrication equipment includes steps of: determining a laser to be used for the AlN heater; determining laser control factors required for cleaning the AlN heater with respect to the laser to be used determined in the step of determining the laser to be used; and cleaning the AlN heater by laser irradiation based on the laser control factors determined in the step of determining the laser control factors.

Abstract: Disclosed is a stable liquid formulation, comprising an antibody or antigen-binding portion thereof, an acetate buffer, glycine, and a surfactant, wherein the stable liquid formulation does not comprise at least one of sugar, a sugar alcohol and a metal salt, and the stable liquid formulation is still stable even upon high antibody content, and is superior in osmolality and viscosity, and subcutaneous administration thereof is possible.

Abstract: A negative active material, including an inorganic supporter having pores which are filled with silicon, additional silicon located on a surface of the inorganic supporter, and a carbon coating layer on the surface of the inorganic supporter and a surface of the additional silicon located on the surface of the inorganic supporter.

Abstract: A hard coating film comprising a base layer including: a polymer binder resin; first inorganic particles dispersed in the polymer binder resin and having an average particle size of 5 nm or more and less than 70 nm; and second inorganic particles which are dispersed in the polymer binder resin and have an average particle size of 70 nm to 150 nm is provided.

Abstract: Provided is a lithium composite anode including a metal film, and lithium ion conductors and electron conductors dispersed on one surface of the metal film, wherein portions of the lithium ion conductors and electron conductors are impregnated into the metal film from the one surface of the metal film.