Abstract: Disclosed is a location-based routing apparatus and method using a link quality index (LQI). The location-based routing apparatus using an LQI may include a determining unit to determine, when a packet received from a first node is a data packet, M candidate neighboring nodes among second nodes different from the first node based on an LQI of the second nodes, wherein M is a natural number, and a processor to select, based on a distance from a receiving node corresponding to a destination of the packet, one neighboring node among the determined candidate neighboring nodes, and to transmit the packet to the selected neighboring node.

Abstract: Disclosed is a method of manufacturing high quality lube base oil (Group III) from unconverted oil having various properties obtained in a variety of hydrocrackers using improved catalytic dewaxing and hydrofinishing, the method including producing unconverted oil of at least one kind in the same or different hydrocrackers; subjecting the unconverted oil to vacuum distillation; supplying all or part of the distillate fractions to a catalytic dewaxing reactor; supplying the dewaxed oil fraction to a hydrofinishing reactor; and stripping the hydrofinished light oil fraction, wherein make-up hydrogen is supplied upstream of the hydrofinishing reactor to increase hydrogen partial pressure, thereby enabling high quality base oil to be manufactured at high yield under optimal process conditions using unconverted oil produced by hydrocracking under various conditions.

Abstract: The present invention relates to a generic packet block applicable to multiple routing schemes in low-power sensor networks and a method of providing the same which reduces operations and information required for a routing scheme in the low-power sensor network and provides flexible extension applicable to various multi-hop routing schemes. The generic packet block includes a generic routing header and routing block, and the method of providing the same is widely applicable to a multi-hop routing. The generic routing header includes a routing packet type, routing address information, and the like, commonly required for the multi-hop routing. The routing block is located in a routing packet body and includes routing cost information changeable depending on a routing scheme, and information changeable depending on a routing operation scheme.

Abstract: Provided is a method and apparatus for managing networks. The method includes defining a set of managed objects of each of the networks to be managed, sending a request for information about the set of managed objects to an agent of the networks to be managed, and recognizing manageable managed objects based on information representing the managed objects, which is transmitted from the agent in response to the request. A network manager requests, receives, and obtains information about managed objects of each of sensor networks, especially heterogeneous sensor networks, thereby managing the heterogeneous sensor networks in an integrated way.

Abstract: A coating composition for zinc- and zinc alloy-coated steel sheets includes: 1 to 30% by weight of hypophosphorous acid, 0.1 to 10% by weight of manganese, 0.01 to 5% by weight of a polyvinyl compound, zinc oxide and the balance of water, and further comprises 20% by weight or less of alcohol, when necessary, wherein the zinc oxide is included in such a content that, when 50 Ml (milliliters) of the coating composition is neutralized and titrated with 0.1N NaOH, the NaOH used for the neutralization titration is present in an amount of 10.0 Ml (milliliters) or less, and a content of free acid in the coating composition is adjusted to such an amount that, when 50 Ml (milliliters) of the coating composition is neutralized and titrated with 0.1N NaOH, the NaOH used for the neutralization titration is present in an amount of 10.0 Ml (milliliters) or less.

Abstract: A folder type polarizing film for OLEDs and a display device, the film including a polarizer; a transparent support attached to an upper surface of the polarizer, the transparent support being a cycloolefin polymer film; and a compensation film attached to a lower surface of the polarizer, the compensation film being a cycloolefin polymer having a phase difference of ?/4 relative to a polarization axis of the polarizer.

Abstract: Disclosed is a multi hop routing apparatus, including: a receiving unit that receives multi hop routing messages; a parsing unit that parses the received multi hop routing messages; and a control unit that performs a control to determine a routing path using a hop count value and a link quality indicator (LQI) value included in the parsed multi hop routing message.

Abstract: A wireless communication system includes a plurality of nodes and a base station. The plurality of nodes include a connection node that is positioned at a BS range of the base station to transmit and receive a packet to and from the base station, or that is positioned outside a BS range of the base station to transmit and receive a packet to and from the base station through other connection nodes, and a relay request node that is positioned at a periphery of the connection node and that transmits a relay request to the connection node when the relay request node deviated from a BS range of the base station.

Abstract: A chimney tray for a reactor, wherein a gas reactant and a liquid reactant are mixed in chimneys to improve the dispersion performance of the liquid reactant on the catalyst bed of a fixed bed reactor thereby increasing the contact efficiency between the liquid reactant and the catalyst depending on the uniformity of flow of the liquid reactant, resulting in increased reaction efficiency, and which includes a tray having a plurality of through-holes, and a plurality of chimneys perpendicularly inserted into the through-holes of the tray and having one or more outlets penetrating there through and facing each other, wherein each of the plurality of chimneys includes a conical lower end which is formed such that it extends from the lower surface of the tray to make an angle of 10˜40° with respect to the direction of the normal line of the tray.

Abstract: A coating composition for zinc- and zinc alloy-coated steel sheets includes: 1 to 30% by weight of hypophosphorous acid, 0.1 to 10% by weight of manganese, 0.01 to 5% by weight of a polyvinyl compound, zinc oxide and the balance of water, and further comprises 20% by weight or less of alcohol, when necessary, wherein the zinc oxide is included in such a content that, when 50 Ml (milliliters) of the coating composition is neutralized and titrated with 0.1N NaOH, the NaOH used for the neutralization titration is present in an amount of 10.0 Ml (milliliters) or less, and a content of free acid in the coating composition is adjusted to such an amount that, when 50 Ml (milliliters) of the coating composition is neutralized and titrated with 0.1N NaOH, the NaOH used for the neutralization titration is present in an amount of 10.0 Ml (milliliters) or less.

Abstract: The present invention relates to a generic packet block applicable to multiple routing schemes in low-power sensor networks and a method of providing the same which reduces operations and information required for a routing scheme in the low-power sensor network and provides flexible extension applicable to various multi-hop routing schemes. The generic packet block includes a generic routing header and routing block, and the method of providing the same is widely applicable to a multi-hop routing. The generic routing header includes a routing packet type, routing address information, and the like, commonly required for the multi-hop routing. The routing block is located in a routing packet body and includes routing cost information changeable depending on a routing scheme, and information changeable depending on a routing operation scheme.

Abstract: A technology for providing a service based on an electronic tag. A personalized service provider issues a new code that replaces a code recorded on an electronic tag which is attached to a product purchased by a purchaser, sets a privacy policy of the purchaser, authenticates the new code and purchaser information, and provides a service associated with the product in a limited manner according to the set privacy policy when a person who accesses the personalized service provider is not the purchaser of the product.

Abstract: A method and apparatus for allowing transmission delay in a mobile Internet Protocol (IP) network is provided. The method of allowing transmission delay in a home agent of a mobile IP network, the method including: storing data in a mobile router when disconnection with the mobile router is sensed; and transmitting the stored data to the mobile router when reconnection with the mobile router is sensed.

Abstract: Provided is an apparatus and method for preventing air baggage from getting lost using a radio frequency identification (RFID) system. The apparatus for preventing baggage from getting lost, change, or stolen in which a baggage tag storing baggage management information is attached to the baggage and a receipt tag storing the baggage management information is issued to a baggage owner, the apparatus includes: a tag reader reading the receipt tag and the baggage tag in a predetermined area; and a determiner determining whether the tag reader reads the receipt tag including the same baggage management information as the baggage management information of the baggage tag within a predetermined time before and after the tag reader reads the baggage tag. As a result, air baggage is quickly and exactly managed, costs is reduced, and foreign confidence of an airport is increased, thereby preventing baggage from getting lost and exchanged.

Abstract: Provided is a method of managing a non-IP sensor network using a simple network management protocol (SNMP), and more particularly, a method of remotely managing a non-IP based sensor network, such as Zigbee, from the Internet of a sensor network manager.

Abstract: When a virtual network environment is established using resources on a network in order for a user to perform an arbitrary test service in the future Internet that is emerging as a replacement of the current Internet, resources having characteristics desired by the user are selected from among a number of resources on the network, and a resource capable of exhibiting an optimum performance is effectively selected from the selected resources.

Abstract: Provided is a method and apparatus for forming a superframe in a low-rate wireless personal area network. The structure of an IEEE 802.15.4 superframe is extended to support QoS by increasing the number of GTSs and to minimize waste of a bandwidth through the precise resource reservation although the SO value increases. Thus, since more efficient resource reservation is available compared to an existing IEEE 802.15.4 and the number of GTSs to be assigned is increased to a maximum of 127, simultaneous multiple link connections to more number of devices are available.

Abstract: A method and an apparatus for providing a service using an RFID tag identifier in an RFID system are provided. The method includes: identifying the RFID tag for providing the service; acquiring an object identifier and a unique item identifier from the RFID tag and determining whether or not each of the identifiers can be interpreted; and disregarding the RFID tag if either of the identifiers cannot be interpreted, and determining whether or not the service should be provided according to validity of the tag identifier of the RFID tag if both of the identifiers can be interpreted. In addition, directly after interpreting the unique item identifier stored in the RFID tag, instead of providing information searches or service, an operation of determining whether or not the tag identifier of the RFID tag is used or issued by an RFID system is performed using the tag identifier stored in the RFID tag.

Abstract: A method and Internet Protocol (IP) translator for translating a protocol to support compatibility between networks employing different types of protocols is provided. The IP translator includes a virtual platform to operate at least one operating system (OS) which supports different types of IPs, and a protocol translating unit which is provided on the virtual platform, translates a data packet of one of the different types of IPs into a data packet of another of the different types of IPs, and transmits the translated data packet to an OS which supports the other type of IP. Accordingly, it is possible to simplify the complicated IPv6-IPv4 translation mechanism of the existing dual operating system.

Abstract: Provided is a method and apparatus for managing networks. The method includes defining a set of managed objects of each of the networks to be managed, sending a request for information about the set of managed objects to an agent of the networks to be managed, and recognizing manageable managed objects based on information representing the managed objects, which is transmitted from the agent in response to the request. A network manager requests, receives, and obtains information about managed objects of each of sensor networks, especially heterogeneous sensor networks, thereby managing the heterogeneous sensor networks in an integrated way.