Abstract: One aspect of the present disclosure relates to a sol-gel composition enabling reversible sol-gel transition and, more specifically, to a sol-gel composition of which the viscosity changes by external physical force so that reversible sol-gel transition is performed.

Abstract: An ultrasound apparatus includes: a first display; a second display including a touch panel receiving a user input; a memory storing one or more instructions; and a processor. The processor is configured to execute the one or more instructions to: obtain a first raw data and a first TGC information corresponding to the first raw data from a storage medium; obtain a first ultrasound image by applying the first TGC information to the first raw data; control the first display to display the first ultrasound image; control the second display to display the first TGC information and receive a user input for modifying the first TGC information to a second TGC information; update the first ultrasound image by applying the second TGC information to the first raw data; and control the first display to display the updated first ultrasound image.

Abstract: Provided is a communication method and an electronic device performing the communication method. The communication method includes establishing a wireless connection for transmission of data, generating a medium access control (MAC) frame including a header formed only of a frame control field based on a type of the data, and transmitting the MAC frame including the data.

Abstract: The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.

Abstract: Provided is a phthalonitrile-based resin, comprising repeat units formed by the reaction of a phthalonitrile compound and a curing agent, wherein the phthalonitrile compound comprises 4,4?-bis(3,4-dicyanophenoxy)diphenyloxide of the following Chemical Formula 1 and 4,4?-bis(3,4-dicyanophenoxy)biphenyl of the following Chemical Formula 2 at a weight ratio of 30:70 to 90:10:

Abstract: The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.

Abstract: A quantum dot light-emitting device including first electrode and a second electrode, a quantum dot layer between the first electrode and the second electrode, a first electron transport layer and a second electron layer disposed between the quantum dot layer and the second electrode. The second electron transport layer is disposed between the quantum dot layer and the first electron transport layer, wherein each of the first electron transport layer and the second electron transport layer includes an inorganic material. A lowest unoccupied molecular orbital energy level of the second electron transport layer is shallower than a lowest unoccupied molecular orbital energy level of the first electron transport layer, and a lowest unoccupied molecular orbital energy level of the quantum dot layer is shallower than a lowest unoccupied molecular orbital energy level of the second electron transport layer. An electronic device including the quantum dot light-emitting device.

Abstract: The present invention relates to a method, system, and computer-readable recoding medium for sharing a result related to contents. The method for sharing a result related to contents includes the steps of assigning different identifications (IDs) to communities in which the contents are primarily and/or secondarily posted if a user requests to directly scrap and post the contents of a server, and collectively providing a result created in relation to the contents belonging to communities having a common ID if the result is created in relation to the primarily and/or secondarily posted contents.

Abstract: The present invention relates to a method, system, and computer-readable recoding medium for sharing a result related to contents. The method for sharing a result related to contents includes the steps of assigning different identifications (IDs) to communities in which the contents are primarily and/or secondarily posted if a user requests to directly scrap and post the contents of a server, and collectively providing a result created in relation to the contents belonging to communities having a common ID if the result is created in relation to the primarily and/or secondarily posted contents.