Abstract: A cathode active material for a lithium secondary battery includes first lithium metal phosphate particles, second lithium metal phosphate particles having an average particle diameter (D50) smaller than an average particle diameter (D50) of the first lithium metal phosphate particles and including manganese, and lithium-transition metal oxide particles having an average particle diameter (D50) larger than the average particle diameter (D50) of the first lithium metal phosphate particles and including nickel. A secondary battery include the cathode active material for a lithium secondary battery.

Abstract: The present invention relates to a technology for recognizing and determining an extent of a liver being examined by an operator during an ultrasound liver examination. In one aspect, a method of determining an extent of liver examination performed by a device for determining an extent of liver examination may include receiving an ultrasound image taken of a region of a liver as input, extracting features from the ultrasound image, determining a cross-section of the liver for which the ultrasound image was taken on the basis of the extracted features, and determining an extent of liver examination taken in the ultrasound image on the basis of the determined cross-section of the liver.

Abstract: A cathode active material for a lithium secondary battery includes first lithium metal phosphate particles and second lithium metal phosphate particles. The first lithium metal phosphate particles have a single particle shape. The second lithium metal phosphate particles include iron and manganese, and have a secondary particle shape in which primary particles are aggregated.

Abstract: A cathode according to an embodiment of the present disclosure may include a cathode current collector including a first surface and a second surface; a first cathode material formed on the first surface of the cathode current collector; and a second cathode material formed on the second surface of the cathode current collector. Each of the first cathode material and the second cathode material may include a first cathode active material and a second cathode active material. The first cathode active material and the second cathode active material have different operating voltage ranges. The weight ratio of the first cathode active material and the second cathode active material included in the first cathode material and the weight ratio of the first cathode active material and the second cathode active material included in the second cathode material may be different.

Abstract: An embodiment provides a method of providing a question-answer service including source code commentary based on a communication connection between a terminal and a server. The method includes receiving, by the server, request data including source code text from the terminal; generating, by the server, commentary information of the source code text by analyzing the source code text based on a source code database; and performing, by the server, natural language processing on the request data based on the commentary information of the source code text to generate answer data corresponding to the request data and provide the answer data to the terminal.

Abstract: A text semantic analysis method using source code analysis includes receiving, by the server, input data including a text from the terminal, generating, by the server, a text analysis result including semantics of the text by performing natural language processing on the text based on the input data; and generating, by the server, output data corresponding to the semantics of the text based on the text analysis result and providing the output data to the terminal. The generating of the text analysis result includes modifying, by the server, the text by converting a text keyword into source code information corresponding to the text keyword when the text keyword including one or more words included in the text has semantics corresponding to the source code information stored in the server, and generating, by the server, the text analysis result by performing analysis on the modified text.

Abstract: Disclosed herein is an internal antenna having a surface-mounted receptacle. The internal antenna includes a printed circuit board, a radiator, and a frame. The printed circuit board is configured such that a receptacle is surface-mounted thereon. The radiator is connected to the printed circuit board. The frame is configured such that the printed circuit board and the radiator are mounted thereto.

Abstract: Disclosed herein is an internal antenna having a surface-mounted receptacle. The internal antenna includes a printed circuit board, a radiator, and a frame. The printed circuit board is configured such that a receptacle is surface-mounted thereon. The radiator is connected to the printed circuit board. The frame is configured such that the printed circuit board and the radiator are mounted thereto.