Abstract: The present invention relates to a conducting material composition capable of forming an electrode in which at least two kinds of carbon based materials are contained in a uniformly dispersed state to enable a battery such as a lithium rechargeable battery having more improved electrical and lifetime characteristics to be provided, and a slurry composition for forming an electrode of a lithium rechargeable battery and a lithium rechargeable battery using the same. The conducting material composition contains: at least two kinds of conductive carbon-based materials selected from the group consisting of carbon nano tube, graphene, and carbon black; and a dispersant containing a plurality kinds of poly aromatic hydrocarbon oxides, wherein the dispersant contains poly aromatic hydrocarbon oxides having a molecular weight of 300 to 1000 at a content of 60 wt. % or more.

Abstract: Provided are an AV signal storage method and apparatus and a television (TV) having an AV signal storage function. The method includes storing an AV signal in a first storage unit when the AV signal is received; storing the received AV signal in a second storage unit when the second storage unit is driven; and outputting AV signal stored in one of the first storage unit and the second storage unit when a request for the output of the AV signal is received.

Abstract: A method and an apparatus which permits intuitive management of a variety of digital contents stored in a mobile device. In a method for managing the contents, the mobile device determines a type of the content when a play of the content is ended. If the content is digital rights management (DRM) content, the mobile device checks a license count for authorized access to the DRM content and then determines whether or the license has expired or will expire shortly. If the license has expired, the mobile device removes the license-expired DRM content, or alternatively transfers the license-expired DRM content to a specified folder.

Abstract: Provided is a backward motion control technology for a car. The car comprises a backward-motion control terminal, a control signal converter, and a backward-motion controller. The backward-motion control terminal outputs a first backward-motion control signal corresponding to a backward velocity and a backward direction of the last trailer according to a user's operation. The control signal converter converts the first backward-motion control signal to a second backward-motion control signal which corresponds to a backward velocity and a backward direction of the car. The backward-motion controller controls the car based on the second backward-motion control signal so that the last trailer moves backward by the backward velocity and the backward direction corresponding to the first backward-motion controlling signal.

Abstract: A car connected to at least one trailer and backward motion control method are provided. The car includes a driving part controlling a velocity and a direction of the car, a backward-motion control terminal outputting a first backward-motion control signal corresponding to a backward velocity and a backward direction of the last trailer according to a user's operation, a control signal converter converting the first backward-motion control signal to a second backward-motion control signal which corresponds to a backward velocity and a backward direction of the car and makes the last trailer move backward as the backward velocity and the backward direction corresponding to the first backward-motion control signal, and a backward-motion controller controlling the driving part on the basis of the second backward-motion control signal so that the last trailer moves backward by the backward velocity and the backward direction corresponding to the first backward-motion controlling signal.

Abstract: A method and an apparatus which permits intuitive management of a variety of digital contents stored in a mobile device. In a method for managing the contents, the mobile device determines a type of the content when a play of the content is ended. If the content is digital rights management (DRM) content, the mobile device checks a license count for authorized access to the DRM content and then determines whether or the license has expired or will expire shortly. If the license has expired, the mobile device removes the license-expired DRM content, or alternatively transfers the license-expired DRM content to a specified folder.

Abstract: Provided are an AV signal storage method and apparatus and a television (TV) having an AV signal storage function. The method includes storing an AV signal in a first storage unit when the AV signal is received; storing the received AV signal in a second storage unit when the second storage unit is driven; and outputting AV signal stored in one of the first storage unit and the second storage unit when a request for the output of the AV signal is received.

Abstract: A cell tube for ex vivo culturing animal cells and a multiple roller tube cell culture system are disclosed. Suitable for use in culturing cells, the tube has at its opposite end walls two openings through which culture media can come in and out. The openings are eccentrically located at corresponding positions in contact with the edge sides of the end walls. The system has a plurality of roller drums on which a multitude of cell tubes are assembled. As the roller drums are rotated, cells adhering to each tube experience a nutrient-rich state and aerobic starvation, repeatedly. In the nutrient-rich state, the cells are grown flourishingly. When subjected to starvation, cells select metabolism pathways for utilizing carbon sources effectively, produce lactate at a low rate and can maintain a constant pH, because they are in direct contact with air. The system makes cells adhere to the wall of cell tubes and provides air directly to cell surfaces.

Abstract: A cell tube for ex vivo culturing animal cells and a multiple roller tube cell culture system are disclosed. Suitable for use in culturing cells, the tube has at its opposite end walls two openings through which culture media can come in and out. The openings are eccentrically located at corresponding positions in contact with the edge sides of the end walls. The system has a plurality of roller drums on which a multitude of cell tubes are assembled. As the roller drums are rotated, cells adhering to each tube experience a nutrient-rich state and aerobic starvation, repeatedly. In the nutrient-rich state, the cells are grown flourishingly. When subjected to starvation, cells select metabolism pathways for utilizing carbon sources effectively, produce lactate at a low rate and can maintain a constant pH, because they are in direct contact with air. The system makes cells adhere to the wall of cell tubes and provides air directly to cell surfaces.