Abstract: The present invention relates to a method for preparing a single isomer of 1-(1-(2-benzylphenoxy)propan-2-yl)-2-methylpiperidine in high purity.

Abstract: An identification method and an unmanned aerial vehicle (UAV) detection apparatus are provided. The identification method, as a method for preventing a collision that may occur in a process of detecting and identifying a plurality of UAVs flying in the air, detects a plurality of UAVs in the air and determines a legitimacy of flight of each of the plurality of UAVs using an identification information request message.

Abstract: A display device includes subpixels on a substrate, position code patterns having a predetermined position code shape, when viewed in a plan view, each position code pattern being disposed at a region between at least two adjacent subpixels, and a pixel-defining layer defining a region where each subpixel is disposed and covering the position code patterns. The plurality of position code patterns are formed in a planar code shape and are configured to reflect light incident through the pixel-defining layer.

Abstract: A display device is disclosed that includes a plurality of pixels and a plurality of code pixels. The pixels include light-emitting elements, which display an image. The code pixels are disposed in the same layer as the pixels and are adjacent to a reference point disposed between the pixels. The code pixels include infrared light-emitting elements, which emit infrared light. At least one of the code pixels, disposed in a particular direction from the reference point, emit the infrared light to provide a code pattern having position information.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, and capable of preventing the degradation of electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide and reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte during high-voltage operation through induction of the growth of primary particles constituting the lithium manganese-based oxide.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material which is capable of improving the low energy density per unit volume of an overlithiated lithium manganese-based oxide, preventing the degradation of electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide, and particularly preventing the lifetime deterioration of a lithium secondary battery by inhibiting or mitigating the release of a transition metal from the lithium manganese-based oxide, and a lithium secondary battery including the same.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including an overlithiated lithium manganese-based oxide, which is able to prevent the degradation of the electrochemical properties of a lithium secondary battery, including rate characteristics, caused by an excess of lithium and manganese in the lithium manganese-based oxide by inducing the growth of primary particles constituting the lithium manganese-based oxide, and prevent the lifetime deterioration of a lithium secondary battery by reducing side reactions between the lithium manganese-based oxide and a liquid electrolyte particularly during high-voltage operation, and at the same time, inhibiting or mitigating the release of a transition metal from the lithium manganese-based oxide, and a lithium secondary battery including the same.

Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material for improving the low energy density per unit volume of an overlithiated lithium manganese-based oxide and a lithium secondary battery including the same.

Abstract: The present disclosure relates to a nanoemulsion composition of oxygen gas sustained release and method for preparing the same, and provides a nanoemulsion composition of oxygen gas sustained release and method for preparing the same, including a water phase part containing water, and an oil phase part dispersed in the water phase part and made of nanoparticle containing a perfluorocarbon compound, wherein the oil phase part contains oxygen gas, and the oxygen gas is released in sustained release. According to the present disclosure, there are advantages of preventing hair loss or promoting hair growth by increasing the amount of oxygen gas supplied to the hair bulb and the oxygen release time from the hair bulb.

Abstract: Proposed is an air gap adjustment apparatus. The apparatus is for enabling an air gap between the inner surface of a stator and the outer surface of a rotor, which are installed in an inner space of a housing, to be uniform overall. A plurality of fastening holes are formed so as to surround a shaft through hole of an end plate constituting the housing. A fastener, which has passed through a bearing housing of a bearing, is fastened to each fastening hole so as to mount the bearing to the end plate. An adjusting member body of an adjusting member, which has passed through the bearing housing, is positioned in an adjusting member seating part which is formed at the entrance of each fastening hole. The adjusting member rotates about the adjusting member body so that a head part may adjust the position of the bearing.

Abstract: An electrolyte solution for a lithium secondary battery according to an embodiment of the present invention includes an organic solvent, a lithium salt, a compound represented by Chemical Formula 1, and a compound represented by Chemical Formula 2. A lithium secondary battery including the electrolyte solution and having improved low temperature and high temperature properties is provided.

Abstract: An audio-visual system may include a housing comprising an open upper end and a storage space, an audio-visual device installed inside the housing and exposable through the open upper end, and a lifting device configured to expose or store the audio-visual device inside the housing through the open upper end. The audio-visual device may include a display, a speaker, and a processor configured to control the audio-visual system to operate in a first mode for outputting media art content while the display is stored in the housing according to a first event, operate in a second mode for outputting audio content through the speaker while part of the display is exposed through the open upper end according to a second event, and operate in a third mode for outputting a visual content while the entire display is exposed through the open upper end according to a third event.

Abstract: A home appliance has a door capable of being opened and closed in opposite directions. The home appliance includes a main body having an inner space and a door rotatably installed on the right or left side of the main body to open and close the inner space. A first door opening/closing system is provided on the right sides of the main body and the door to be involved in a right opening of the door. A second door opening/closing system is provided on the left sides of the main body and the door to be involved in a left opening of the door. A locking member is disposed to be slidable in a left-right direction between the first door opening/closing system and the second door opening/closing system.

Abstract: A method of manufacturing a multilayer metal plate by electroplating includes a first forming operation of forming one of a first metal layer and a second metal layer on a substrate by electroplating, wherein the second metal layer is less recrystallized than the first metal layer, the second metal layer is comprised of nanometer-size grains, and the second metal layer has a higher level of tensile strength than the first metal layer; and a second forming operation of forming, by electroplating, a third metal layer not formed in the first forming operation on a surface of one of the first metal layer and the second metal layer formed in the first forming operation.

Abstract: The present invention provides a functional peptide having excellent antioxidant activity, the peptide having excellent biocompatibility and significantly better antioxidant activity than conventional GSHs in order to overcome the limitation of the weak antioxidant activity of existing peptides. The peptide of the present invention can promote antioxidant activity or effectively repair biological tissue or cell damage caused by reactive oxygen species generated due to oxidative stress. Therefore, the peptide having such antioxidant activity effectively acts on cell damage caused by oxidative stress, and can thus be used to prevent and repair cell damage.

Abstract: A complementary thin film transistor (TFT) includes a substrate and a first TFT and a second TFT disposed on the substrate, wherein a first conductive semiconductor layer of the first TFT and a second gate electrode layer of the second TFT are disposed in the same layer and include the same material.

Abstract: Disclosed are a method and an apparatus for an instant messaging service to provide a schedule service. A schedule management server according to an example embodiment includes receiving a schedule creating request, selecting any one of a first type of calendar belonging to a chatroom in which the schedule creating request is created and a second type of calendar belonging to a user account which creates the schedule creating request, according to a schedule type included in the schedule creating request; and creating a schedule corresponding to the selected type of calendar.

Abstract: Disclosed are a method and an apparatus for an instant messaging service to provide a schedule service. A schedule management server according to an example embodiment includes receiving a schedule creating request, selecting any one of a first type of calendar belonging to a chatroom in which the schedule creating request is created and a second type of calendar belonging to a user account which creates the schedule creating request, according to a schedule type included in the schedule creating request; and creating a schedule corresponding to the selected type of calendar.

Abstract: A user authentication method performed in an unmanned delivery system including a server, a buyer customer device, a deliveryman customer device, and an autonomous delivery vehicle includes: generating, by the server, a session key based on order information received from the buyer customer device, and transmitting the generated session key to the deliveryman customer device and the buyer customer device; generating, by the deliveryman customer device, a One-Time Password (OTP) based on the session key; applying, by the deliveryman customer device as a first application step, a hash function to the OTP a first predetermined number of times; additionally applying, by the deliveryman customer device as a second application step, the hash function to the OTP generated in the first application step a second predetermined number of times; and generating, by the deliveryman customer device, a first Quick Response (QR) code based on the OTP generated in the second application step.

Abstract: In an image processing-based system for measuring moisture and light transmittance and a method for measuring moisture and light transmittance using the same, the image processing-based system includes a coating paper, a photographing box, a microscope and an RGB decision program. The coating paper is coated with coating conditions substantially same as the coating conditions for a metal material. The photographing box is configured to photograph the coating paper, to obtain a first image. The microscope is configured to photograph the coating paper, to obtain a second image. The RGB decision program is configured to obtaining an RGB value of each of the first and second images. Moisture transmittance is evaluated using the RGB value of the first image, and light transmittance is evaluated using the RGB value of the second image.