Abstract: The present invention relates to a method for preparing a functionalized graphene. The method for preparing a functionalized graphene according to the present invention can functionalize graphene by a simple method and does not use any other substance other than graphene and a salt containing a double bond, thereby enabling functionalization of graphene while exhibiting characteristics inherent to graphene.

Abstract: A bio-signal measuring apparatus includes a first electrode, a second electrode, a third electrode, a fourth electrode, and a first circuit network and a second circuit network, each of the first circuit network and the second circuit network includes one or more resistances. The bio-signal measuring apparatus further includes an impedance measurer configured to measure a first impedance of the first circuit network in a first correction mode, measure a second impedance of the second circuit network in a second correction mode, measure a third impedance of an object in a first measurement mode, using the first electrode, the second electrode, the third electrode, and the fourth electrode, and measure a fourth impedance of the object in a second measurement mode, using the first electrode, the second electrode, the third electrode, and the fourth electrode.

Abstract: A bio-information processing apparatus may include: a main body; a strap which is connected to both ends of the main body; an impedance measurer configured to measure a bio-impedance of a user while the main body and the strap are in contact with the user; and a processor configured to estimate a body water amount of the user by applying the measured bio-impedance to a body water estimation model.

Abstract: A method of producing a layer structure includes forming a first organic layer by applying a first composition including an organic compound on a substrate having a plurality of patterns, applying a solvent on the first organic layer to remove a part of the first organic layer, and applying a second composition including an organic compound on a remaining part of the first organic layer and forming a second organic layer through a curing process.

Abstract: A method of controlling a mobile apparatus to display an end effect is provided. The method includes displaying at least one object on a first layer on a touch screen, converting the at least one object in response to a first gesture that converts the at least one object, detecting that the conversion for the at least one object is ended, and displaying an end effect, which represents a message saying that the at least one object to be converted does not exist anymore or represents additional information, on the touch screen.

Abstract: An organic light emitting diode includes: a first electrode; a second electrode facing the first electrode; a light emission layer between the first electrode and the second electrode; an electron injection layer between the second electrode and the light emission layer; and a buffer layer between the electron injection layer and the second electrode, where the electron injection layer includes a dipolar material and a first metal, and the buffer layer includes a metal having a work function of 4.0 eV or less.

Abstract: Provided is a method of controlling release of nitric oxide, and more particularly, to a method of selectively releasing nitric oxide depending on a change in pH using calcium phosphate. The method of selectively releasing nitric oxide according to the present invention may stably deliver nitric oxide to a desired site, and induce release of nitric oxide by a change in pH, thereby making it possible to improve a therapeutic effect while preventing a loss of nitric oxide.

Abstract: An artificial intelligence (AI) system which utilizes machine learning algorithm such as deep learning and application is provided. The artificial intelligence (AI) system includes a controlling method of an electronic device for determining a chatbot using an artificial intelligence learning model includes receiving a voice uttered by a user, processing the voice and acquiring text information corresponding to the voice, and displaying the text information on a chat screen, determining a chatbot for providing a response message regarding the voice by inputting the acquired text information and chat history information regarding the chat screen to a model which is trained to determine the chatbot by inputting text information and chat history information, transmitting the acquired text information and the chat history information regarding the chat screen to a server for providing the determined chatbot, and receiving a response message from the server and displaying the response message on the chat screen.

Abstract: The present invention relates to compositions and methods for preventing and/or treating gonorrhea. In particular, the present invention provides compositions comprising an effective amount of a commensal species of Neisseria (e.g., an effective amount of an extract of a commensal species of Neisseria), wherein such compositions are capable of inhibiting the growth of Neisseria gonorrhoeae.

Abstract: A method of displaying data and an electronic device thereof are provided. The method includes receiving a first gesture input when a first program is displayed on a first layer of a touch screen of the electronic device, displaying a second program corresponding to the first gesture input on a second layer of the touch screen, receiving a second gesture input on the second layer, and displaying a third program corresponding to the second gesture input on a third layer of the touch screen.

Abstract: An organic light emitting diode display, including a substrate; a thin film transistor on the substrate; a first electrode on the thin film transistor and electrically connected to the thin film transistor; an organic emission layer on the first electrode; a second electrode on the organic emission layer; and a first capping layer on the second electrode and a second capping layer on the first capping layer, the second capping layer being thicker than the first capping layer.

Abstract: A light emitting diode includes a first electrode overlapping a second electrode, an emission layer between the first and second electrodes. a first hole injection layer and a second hole injection layer between the first electrode and the emission layer, and a first hole transporting layer between the first hole injection layer and the second hole injection layer. Each of the first and second hole injection layers includes an inorganic dipole material. At least one of the first hole injection layer or the second hole injection layer including an organic material.

Abstract: A compound represented by Chemical Formula 1 according to the present invention can coordinate with metal ions to form a bidirectional or multidirectional metal-organic hybrid structure. Thus, the present invention can synthesize various ligands using amine-aldehyde condensation, and synthesize metal-organic materials using the same.

Abstract: A flexible display device includes a display panel configured to display an image, and a polarizing plate on the display panel. The flexible display device includes a folding area and a non-folding area. A first thickness of the polarizing plate in the folding area is greater than a second thickness of the polarizing plate in the non-folding area.

Abstract: The present invention relates to a polymer-graphene composite, in which a polymer has been introduced onto the surface of graphene while maintaining the structural features and mechanical properties of the graphene, thereby realizing an excellent dispersibility in an organic solvent, a method for preparing the same, and a polymer-graphene composite composition using the same.

Abstract: A method and system for sharing content, by which an experience is shared between users in real-time based on an interactive service between devices is provided. The method includes: receiving content-related information from at least one peripheral device reproducing content to be shared while an interactive service is being provided; and transmitting the content-related information to at least one second communication device connected to a first communication device by the interactive service based on the received content-related information.

Abstract: An organic light emitting diode, including a first electrode; a second electrode facing the first electrode, the second electrode including magnesium; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, the electron injection layer including a dipole material including a first component and a second component having different polarities, the dipole material including halide, and a content of the magnesium included in the second electrode being in a range of from 10 to 40 volume %.

Abstract: A light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; and an electron transporting region positioned between the second electrode and the emission layer, wherein the electron transporting region includes a tellurium compound of a rare earth metal.

Abstract: A compound represented by Chemical Formula 1 according to the present invention can coordinate with metal ions to form a bidirectional or multidirectional metal-organic hybrid structure. Thus, the present invention can synthesize various ligands using amine-aldehyde condensation, and synthesize metal-organic materials using the same.

Abstract: A method of transmitting an inquiry message, performed by a display device, includes operations of reproducing content in the display device; receiving an input from a user, wherein the input from the user is related to the content; generating an inquiry message about the content, based on the input from the user; extracting information, which is related to the input from the user, from the content; and transmitting the extracted information and the inquiry message to an external device that is connected with the display device.