Abstract: The present disclosure provides a positive active material and a lithium-ion secondary battery. The positive active material comprises LiCoO2 (LCO) and LiFexMn1-xPO4 (LFMP), 0<x?0.4; a mass ratio of LiFexMn1-xPO4 to LiCoO2 is m, and 0<m?0.45; LiFexMn1-xPO4 is a polycrystalline particle with an olivine structure; LiCoO2 is a polycrystalline particle with a laminated structure; an average particle diameter D50 of the polycrystalline particle of LiFexMn1-xPO4 is smaller than an average particle diameter D50 of the polycrystalline particle of LiCoO2, and the polycrystalline particle of LiFexMn1-xPO4 is filled in the polycrystalline particle of LiCoO2. The lithium-ion secondary battery comprises the aforementioned positive active material. The lithium-ion secondary battery of the present disclosure has a high voltage platform and a high energy density, and also has an excellent rate performance, an excellent cycle performance and an excellent safety performance.

Abstract: The present disclosure provides a lithium-ion battery positive electrode material and a preparation method thereof.

Abstract: Provided are a system and a method for providing a neighbor connect service. The neighbor connect service method sets up a neighbor relationship between internal blogs and external blogs and provides information about a blog set up as the neighbor relationship based on the neighbor connect service.

Abstract: Disclosed is a system and a method for preventing collision through substantial vehicle control while providing warning to a driver by determining collision danger using vehicle information and environment information and controlling vehicle speed with vehicle target speed computed through determination logic.

Abstract: A method for selecting an operational channel of a wireless narrow area network, a coordinator using the same, and a computer-readable recording media recording a program for realizing the method. More particularly, a method for selecting an operational channel of a wireless narrow area network in which one radio channel is occupied by a plurality of coordinators at different timings by selecting a predetermined period of a radio channel where a coordinator of the wireless narrow area network is used by another coordinator as own operational channel, a coordinator using the same, and a computer-readable recording media recording a program for realizing the method.

Abstract: Provided is a method for localization message process. The method includes allocating cluster resources for recognizing a location of a mobile node, setting operation of each node by deciding a cluster operation state for the mobile node, measuring distances between the mobile node to each of anchor nodes, and recognizing a location of the mobile node.

Abstract: Methods and apparatuses for sharing a virtual image. An apparatus includes a virtual image creating unit which creates a moving virtual image, a virtual image registration requesting unit which requests a virtual image sharing server to register the virtual image created by the virtual image creating unit, and a virtual image sharing unit which receives the virtual image having the moving coordinates, which corresponds to current position information of the terminal device, from the virtual image sharing server.

Abstract: Provided are a system and a method for providing a neighbor connect service. The neighbor connect service method sets up a neighbor relationship between internal blogs and external blogs and provides information about a blog set up as the neighbor relationship based on the neighbor connect service.

Abstract: An image capturing device includes a taking lens, an image sensor, a driving device, an input device, and an auto-focus system. The input device is used for selecting a number of focus areas in a photographing area. The auto-focus system includes an auto-focus module, a calculating module, and a driving module. The auto-focus module controls the image capturing device to focus on each focus area alone to obtain a number of in-focus positions of the taking lens corresponding to the number of focus areas. The calculating module calculates distances between a predetermined starting position of the taking lens and the in-focus positions of the taking lens, and averaging the distances to obtain an average distance. The driving module controls the driving device to move the taking lens the average distance to arrive at an in-focus position of the taking lens corresponding to the plurality of focus areas.

Abstract: A method for selecting an operational channel of a wireless narrow area network, a coordinator using the same, and a computer-readable recording media recording a program for realizing the method. More particularly, a method for selecting an operational channel of a wireless narrow area network in which one radio channel is occupied by a plurality of coordinators at different timings by selecting a predetermined period of a radio channel where a coordinator of the wireless narrow area network is used by another coordinator as own operational channel, a coordinator using the same, and a computer-readable recording media recording a program for realizing the method.

Abstract: Provided is a method for localization message process. The method includes allocating cluster resources for recognizing a location of a mobile node, setting operation of each node by deciding a cluster operation state for the mobile node, measuring distances between the mobile node to each of anchor nodes, and recognizing a location of the mobile node.

Abstract: An apparatus and a method for video transmission in a video conferencing system in which in order to efficiently transmit the speaker's picture in meetings, conferences, workshops and the like, the text data is separately transmitted by being separated from the speaker's picture.

Abstract: An apparatus and a method for video transmission in a video conferencing system in which in order to efficiently transmit the speaker's picture in meetings, conferences, workshops and the like, the text data is separately transmitted by being separated from the speaker's picture.