Abstract: A method, according to one embodiment, depolymerizes waste polyester by means of a multi-step reaction, wherein a latter reaction is carried out at a low temperature, and ion exchange, etc., is further carried out, thereby enabling the provision of high-purity and high-quality recycled bis(2-hydroxyethyl) terephthalate having reduced generation of diethylene glycol-derived impurities and oligomers.

Abstract: The present invention provides an apparatus for inspecting a welding state in a welded portion for an electronic or mechanical coupling in a lithium secondary battery, the apparatus including: a measuring unit configured to obtain data for deriving a resistance value of the welded portion by allowing a resistance measuring probe to contact the welded portion; and a controller configured to communicate with the measuring unit, determine the resistance value of the welded portion by receiving the data obtained from the measuring unit, and determine whether a weak welding was performed by comparing the determined resistance value with a threshold resistance value, in which the measuring unit is configured to allow the resistance measuring probe to contact one end and the other end of the welded portion.

Abstract: The present invention relates to a method for culturing skin-derived stem cells and uses of the same, particularly to a method for culturing skin-derived stem cells; skin-derived stem cells prepared by the method; and a pharmaceutical composition for skin regeneration or wound treatment; a quasi-drug composition; and a cosmetic composition, which contain the prepared skin-derived stem cells, a culture of the skin-derived stem cells, or cells differentiated from the skin-derived stem cells as an active ingredient. According to the culture method of the present invention, stem cells can be effectively isolated and obtained from skin tissue, and the obtained skin-derived stem cells have excellent pluripotency and self-replication ability as well as excellent skin regeneration and wound treatment effects and can be usefully utilized for skin regeneration and wound treatment or improvement.

Abstract: The present invention relates to a method for culturing hair follicle-derived stem cells and uses thereof, particularly to a method for culturing hair follicle-derived stem cells; hair follicle-derived stem cells prepared by the method; and a pharmaceutical composition for hair loss treatment or hair growth promotion; a quasi-drug composition; and a cosmetic composition, which contains the prepared hair follicle-derived stem cells, a culture of the hair follicle-derived stem cells, or cells differentiated from the hair follicle-derived stem cells as an active ingredient. According to the culture method of the present invention, stem cells can be effectively isolated and obtained from hair follicle tissue, and the obtained hair follicle-derived stem cells have excellent pluripotency and self-replication ability as well as excellent hair loss treatment and hair growth promotion effects and can be usefully utilized for hair loss improvement, prevention, or treatment.

Abstract: The present invention relates to an anthracene derivative compound having a characteristic structure in which an aryl group is introduced into a skeletal structure in which deuterium-substituted phenyl and anthracene are linked. In addition, the present invention relates to a high-efficiency, long-life organic light-emitting device of which the luminous efficiency and lifetime characteristics are significantly improved by employing a polycyclic compound having a characteristic structure as a dopant for a light-emitting layer while employing said compound as a host for the light-emitting layer.

Abstract: A mold device includes: an outer mold part including a first outer mold, and a second outer mold that is moved toward the first outer mold to form a molding space with the first outer mold; and an inner mold part including an inner mold that is moved between a molding position disposed in the molding space of the outer mold part and an exit position deviating from the molding space. The inner mold is configured to mold a cylinder having a hollow part extending in a first direction between the inner mold part and the outer mold part when being located in the molding position. The inner mold is formed to correspond to the cylinder to form a space allowing introduction of a resin.

Abstract: The present invention relates to: a substituted thiazolidinedione derivative compound having a novel structure acting as a sterol regulatory element-binding protein-1 (SREBP1) inhibitor, a hydrate thereof, or a pharmaceutically acceptable salt thereof; and a pharmaceutical composition for preventing or treating cancer, comprising same as an active ingredient.

Abstract: An application processing method for providing a group video call and a terminal for performing a group video call are disclosed. The application processing method of providing a group video call may include executing a group video call comprising a plurality of participants, based on a number of the participants, displaying views corresponding to the participants by pagination, based on a predetermined action of a first participant whose view is not displayed on a predetermined page of a plurality of pages generated by the pagination, selecting one of participants whose view is displayed on the predetermined page as a second participant, and displaying the views by swapping a position of the view corresponding to the selected second participant and a position of the view corresponding to the first participant.

Abstract: This disclosure relates to image sensors and electronic apparatuses including the same. An image sensor including: a pixel area including shared pixels, wherein each of the shared pixels includes at least two photodiodes that form a group and share a floating diffusion (FD) area; and a transistor (TR) area adjacent to the pixel area, wherein the TR area includes transistor sets corresponding to the shared pixels, wherein, when a first shared pixel and a second shared pixel are arranged adjacent to each other in a first direction, a first TR set corresponding to the first shared pixel and a second TR set corresponding to the second shared pixel share a source region of a first selection TR.

Abstract: A display device includes at least one spatial light modulator displaying an image, a surface light source device providing an image display light from a rear direction of the spatial light modulator to the spatial light modulator, and at least one image transmission member forming a display path of an image displayed through at least one spatial light modulator, the surface light source device comprises an organic light emitting display surface in which light emitting pixels performing a surface light emission are disposed, and an emission driving circuit setting a light emission compensation value for the each of the block areas according to an average value of light emission grayscale deviation for each of the block areas of the organic light emitting display surface and compensating light emission grayscale in respect to the light emitting pixels by using the light emission compensation value for each of the block areas.

Abstract: A lamp for a vehicle includes a first optical module that forms a first light distribution pattern, and including a first light source part, and a first output lens part that outputs light input from the first light source part, and a second optical module that forms a second light distribution pattern having light distribution characteristics that is different from those of the first light distribution pattern, and including a second light source part, and a second output lens part that outputs light input from the second light source part. The first optical module and the second optical module are arranged in an upward/downward direction, the first light distribution pattern and the second light distribution pattern overlap each other to implement a low beam.

Abstract: The present disclosure provides an injection molding apparatus including a first mold, a second mold configured to be relatively movable toward or away from the first mold and define a cavity for forming a molded body collectively with the first mold, a stripper provided between the first mold and the second mold and configured to separate the molded body from the first mold, a first cotter block provided on the stripper, and a second cotter block provided on the second mold, configured to be rollable relative to the first cotter block, and configured to align the second mold with the first mold collectively with the first cotter block, thereby obtaining an advantageous effect of reducing a defect rate related to the molded body and improving quality and productivity.

Abstract: The present invention relates to an organic light-emitting diode in which a light-emitting layer comprises a compound represented by [chemical formula A] as a host and comprises a compound represented by [chemical formula 3], [chemical formula 4], [chemical formula 3-1] to [chemical formula 4-3] as a dopant, wherein [chemical formula 3], [chemical formula 4], [chemical formula 3-1] to [chemical formula 4-3] are the same as those described in the detailed description of the invention.

Abstract: The present invention relates to an organic light-emitting device comprising, in a light-emitting layer thereof: a compound represented by [chemical formula A]; and a compound represented by any one of [chemical formula D-6] and [chemical formula D-7], wherein [chemical formula A], [chemical formula D-6], and [chemical formula D-7] are as described in the detailed description of the invention.

Abstract: A user terminal device and a controlling method thereof are provided. The user terminal device includes a display configured to be divided into a first area and a second area which is larger than the first area with reference to a folding line, a cover disposed on a rear side of the display, a detector configured to detect a user interaction on the display and the cover, and a controller configured to, in response to the display being folded along the folding line such that the first area and the second area face each other, control the detector to detect a user interaction through an exposure area, which is an exposed part of the second area, and the cover, and, in response to the display being folded such that the two parts of the cover face with each other with reference to the folding line, control the detector to detect a user interaction through the first area and the second area.

Abstract: A method of manufacturing an all-solid-state battery electrode, an all-solid-state battery electrode manufactured by the method, and an all-solid-state battery including the electrode are disclosed. In the method, a specific type of binder included in the electrode is prepared in a fiber form by applying pressure to the binder under specific conditions, so that the fiber-form binder thus prepared has an average fineness that satisfies a specific range. Therefore, the all-solid-state battery including the electrode has an advantage of having high capacity even in the case of electrode thickening for high loading.

Abstract: The present disclosure relates to a solid-liquid hybrid electrolyte membrane including a predetermined amount of liquid electrolyte in a porous structure formed by solid polymer particles, and a method for manufacturing a solid-state battery including the same. According to an embodiment of the present disclosure, it is possible to manufacture a battery without any separate step of injecting an electrolyte. In addition, since the solid-state battery includes a liquid electrolyte, it is possible to ensure improved ion conductivity as compared to the conventional solid electrolyte batteries.

Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VT represented by Equation (1) below measured after manufacturing a test module by stacking four of the lithium secondary battery fully charged by being charged to 4.35 V is 4 Ah/sec or less: Equation (1): VT=Ctotal/t.

Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VP represented by Equation (1) below is 4 mbar·Ah?1·sec?1 or less: Equation (1): VP=?P/(tmax×C).

Abstract: The present disclosure relates to a lithium secondary battery with improved safety during thermal runaway. The lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte, and has a nominal voltage of 3.68 V or greater, and VT represented by Equation (1) below measured after manufacturing a test module by stacking four of the lithium secondary battery fully charged by being charged to 4.35 V is 4 Ah/sec or less: Equation (1): VT=Ctotal/t.