Abstract: The present invention relates to a nuclear fuel pellet laminate structure having enhanced thermal conductivity, including a nuclear fuel pellet; and a thermally conductive metal layer disposed above or below the nuclear fuel pellet, and a method for manufacturing the same.

Abstract: The present invention relates to a nuclear fuel pellet laminate structure having enhanced thermal conductivity, including a nuclear fuel pellet; and a thermally conductive metal layer disposed above or below the nuclear fuel pellet, and a method for manufacturing the same.

Abstract: The present disclosure relates to a phase change composite and a heat spreader including the same, and more particularly, to a phase change composite having improved cooling performance by being formed in a layer-by-layer structure composed of a material having high thermal conductivity and a phase change material. According to the present disclosure, by repeatedly laminating thermal conductive layers and phase change material unit layers, thermal conductivity in the horizontal direction may be dramatically improved. In addition, due to a high volume percentage of a phase change material, a heat spreader with a large heat capacity may be provided.

Abstract: The present disclosure relates to a novel high-performance latent heat storage composite manufactured by forming a network of protective nanostructures on the surface of a metal material having high thermal conductivity. Through a low volume content of a network having high thermal conductivity, high-density heat capacity may be secured. In addition, through use of a metal-based material having high thermal conductivity, thermal conductivity may be increased by about 7 times compared to a conventional pure phase change material.

Abstract: Provided are a super water repellent polymer hierarchical structure, a heat exchanger having super water repellency, and a manufacturing method thereof A super water repellent polymer hierarchical structure can be simply and repeatedly manufactured by using only a method for utilizing a super water repellent hierarchical structure and mechanically molding a polymer material thereon. In addition, a heat exchanger having super water repellency can be provided by providing super water repellency on the fin surface of a heat exchanger by using a dip method and vacuum drying.

Abstract: Provided are a super water repellent polymer hierarchical structure, a heat exchanger having super water repellency, and a manufacturing method thereof A super water repellent polymer hierarchical structure can be simply and repeatedly manufactured by using only a method for utilizing a super water repellent hierarchical structure and mechanically molding a polymer material thereon. In addition, a heat exchanger having super water repellency can be provided by providing super water repellency on the fin surface of a heat exchanger by using a dip method and vacuum drying.

Abstract: Device and method of controlling a traffic light on the basis of an analysis result of a broadcast signal transmitted via a broadcast network are provided. The traffic light control device controlling signal light change of a traffic light, includes: a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network; and a traffic light control unit that determines an offset time from a reference traffic light on the basis of an analysis result of the broadcast signal and that outputs a control signal for controlling the light change of a control target traffic light so that a time point which lags by the determined offset time from a signal light display start time point of the reference traffic light is matched with a signal light display start time point of the control target traffic light.

Abstract: Device and method of efficiently controlling a traffic light using identification information having a layered structure are provided. A traffic light control device that controls signal light change of a management-target traffic light includes: a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network, wherein the broadcast signal includes identification information having a layered structure and a control command; and a traffic light control unit that determines whether the management-target traffic light belongs to a target of the control command on the basis of the identification information having a layered structure and that outputs the control signal for performing the signal light change based on the control command only when the management-target traffic light belongs to the target of the control command.

Abstract: Device and method of controlling a traffic light on the basis of an analysis result of a broadcast signal transmitted via a broadcast network are provided. The traffic light control device controlling signal light change of a traffic light, includes: a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network; and a traffic light control unit that determines an offset time from a reference traffic light on the basis of an analysis result of the broadcast signal and that outputs a control signal for controlling the light change of a control target traffic light so that a time point which lags by the determined offset time from a signal light display start time point of the reference traffic light is matched with a signal light display start time point of the control target traffic light.

Abstract: Device and method of efficiently controlling a traffic light using identification information having a layered structure are provided. A traffic light control device that controls signal light change of a management-target traffic light includes: a broadcast signal receiving unit that receives a broadcast signal emitted from a traffic control center via a broadcast network, wherein the broadcast signal includes identification information having a layered structure and a control command; and a traffic light control unit that determines whether the management-target traffic light belongs to a target of the control command on the basis of the identification information having a layered structure and that outputs the control signal for performing the signal light change based on the control command only when the management-target traffic light belongs to the target of the control command.

Abstract: A method and an apparatus using an item sequence of a sequence table as an identifier are provided. A data processing method includes the steps of: (a) causing the user apparatus to receive operation information to be transmitted from the information provider apparatus, wherein the operation information includes a plurality of data elements arranged in accordance with an item sequence of a sequence table in which the sequence of a plurality of items is specified and each data element includes one or more detailed operation data pieces; (b) extracting the data element of the item sequence corresponding to a reference position of the user apparatus out of the operation information; and (c) performing a predetermined operation using the one or more detailed operation data pieces included in the extracted data element.

Abstract: A method of calculating a position of a GPS receiver, a recording medium having recorded thereon a program for performing the method, and a GPS receiver are discussed. The method includes causing a control unit to combine a plurality of satellite signals received through the use of a receiver unit and to create a plurality of satellite signal groups; selecting a low-error satellite signal group not including any GPS satellite signal causing a reflection error or including the GPS satellite signal causing a reflection error as little as possible by the use of pseudoranges based on the GPS satellite signals included in the satellite signal groups; detecting the GPS satellite signal not included in the low-error satellite signal group as a reflected satellite signal; and calculating a positional coordinate of the GPS receiver by the use of the GPS satellite signals other than the reflected satellite signal.

Abstract: A method for providing an image based time-variant geographical information such as traffic information is disclosed. A method and a user device for processing this image based time-variant geographical information are also disclosed. A traffic state information composed of a map identifier and a plurality of traffic state data in section-wise is transmitted to a user device, and is to be incorporated with corresponding traffic section map(or TSM(=traffic state map)) including a plurality of sections. The traffic section map is preferably stored in a user device. Each section of traffic section map(or TSM) includes at least one vector entity which includes a shape designating statement (e.g. ‘LINE’) and a position designating statement. The traffic section map(or TSM) also includes a plurality of section discriminating code which is preferably an attribute designating command. The traffic state data for respective section is used to update or designate the attribute value (e.g.

Abstract: A system and method for providing an image-based traffic information are disclosed. A plurality of time-variant real entities are converted into time-variant image vector entities and the attribute-designating statement of the time-variant image vector entity is determined based on a traffic information. Also, a plurality of time-invariant real entities are converted into a plurality of time-invariant image vector entities which constitutes a basic map. A traffic information map including at least said traffic state map is transmitted to a user device via a communication network. At user device, a basic image in accordance with the basic map is displayed on a screen of the user device and a traffic state image in accordance with the traffic state map is cumulatively displayed on the basic image.