Abstract: Provided are a subminiature optical transmission module and a method for manufacturing same. The optical transmission module includes: a mold body having a first surface and a second surface opposite to each other; multiple edge-type light emitting elements, each of which is molded inside the mold body by fitting same to the first surface so as to match with the first surface and generates an optical signal in the edge direction of a chip; and an optical component disposed on one side thereof so as to optically multiplex multiple optical signals incident from the multiple edge-type light emitting elements and to output same, wherein the identical height is configured between the surface of each light emitting element and the optical axis of the optical component, and the edge direction of the chip is parallel to the first surface of the mold body.

Abstract: Provided are a method for generating a summary and a system therefor. The method according to some embodiments may include calculating a likelihood loss for a summary model using a first text sample and a first summary sentence corresponding to the first text sample, calculating an unlikelihood loss for the summary model using a second text sample and the first summary sentence, the second text sample being a negative sample generated from the first text sample, and updating the summary model based on the likelihood loss and the unlikelihood loss.

Abstract: A tantalum capacitor includes a tantalum body comprising a tantalum sintered body containing tantalum powder, a conductive polymer layer disposed on the tantalum sintered body and including a first filler as a non-conductive particle, and a tantalum wire. The first filler includes a core including at least one metal oxide among BaTiO3, Al2O3, SiO2 and ZrO2, and a coating film disposed on a surface of the core.

Abstract: An apparatus for embedding a sentence feature vector according to an embodiment includes a sentence acquisitor configured to acquire a first sentence and a second sentence, each including one or more words; a vector extractor configured to extract a first feature vector corresponding to the first sentence and a second feature vector corresponding to the second sentence by independently inputting each of the first sentence and the second sentence into a feature extraction network; and a vector compressor configured to compress the first feature vector and the second feature vector into a first compressed vector and a second compressed vector, respectively, by independently inputting each of the first feature vector and the second feature vector into a convolutional neural network (CNN)-based vector compression network.

Abstract: A combustor includes a combustion chamber having a grate provided therein and a combustion space formed above the grate; a fuel supply part downwardly connected to a center part of the grate so as to supply fuel to an upper part of the grate; an air supply part connected to a side part of the combustion chamber so as to be slanted on a horizontal plane, thereby supplying combustion air; a guide member disposed to protrude toward the inside of the combustion space from an inlet through which the combustion air flows into the combustion space, and opened downwardly so as to guide the combustion air; and protruding guide lines having a screw line shape and extending to be slanted downwardly on at least one of the respective surfaces, which face each other, of the guide member and the inner wall of the combustion chamber.

Abstract: A system for downlink transmission using heterogeneous power includes a plurality of sensor nodes, a coordinator connected to a network including the plurality of sensor nodes and configured to transmit data to the plurality of sensor nodes, a power source configured to supply power required for the coordinator to transmit data to each of the plurality of sensor nodes through a single transmission passage at a position away by a specific distance from the network, to the coordinator, and a battery configured to supply power required for the plurality of sensor nodes to perform communication within the network, to the plurality of sensor nodes, wherein when a destination node as a reception target of the data, among the plurality of sensor nodes, receives the data, the destination node transmits a signal indicating the data reception to the other remaining nodes among the plurality of sensor nodes.

Abstract: A combustor includes a combustion chamber including a grate and a combustion space formed above the grate; a fuel supply portion downwardly connected to a central portion of the grate to supply fuel to an upper portion of the grate; an air supply part connected to a side portion of the combustion chamber to be inclined on a horizontal plane, such that the combustion air rotates in the combustion space; a clinker collection portion downwardly communicating with a gap formed between an inner wall of the combustion chamber and the grate, to collect clinker generated by combustion of fuel in the clinker collection portion; and a reintroduction channel passing through the grate, such that the combustion air is reintroduced into the combustion space.

Abstract: A system for downlink transmission using heterogeneous power includes a plurality of sensor nodes, a coordinator connected to a network including the plurality of sensor nodes and configured to transmit data to the plurality of sensor nodes, a power source configured to supply power required for the coordinator to transmit data to each of the plurality of sensor nodes through a single transmission passage at a position away by a specific distance from the network, to the coordinator, and a battery configured to supply power required for the plurality of sensor nodes to perform communication within the network, to the plurality of sensor nodes, wherein when a destination node as a reception target of the data, among the plurality of sensor nodes, receives the data, the destination node transmits a signal indicating the data reception to the other remaining nodes among the plurality of sensor nodes.

Abstract: Disclosed are a method of packet classification and a device thereof. A method for packet classification according to one embodiment of the present invention comprises the steps of: partitioning the entire rule set by using key values corresponding to packet fields, into a plurality of rule subsets; generating recursive flow classification (RFC) tables for each of the plurality of partitioned rule subsets; loading, in the same cache line, both partition information and RFC table information commonly corresponding to key values of received packets; searching for a rule subset by using the partition information on the key values of the received packets, which are loaded in the cache line; and searching for an RFC table for a rule by using the RFC table information on the key values of the received packets, which are loaded in the cache line.

Abstract: The present invention relates to an apparatus and method for recognizing a QR code and, more particularly, to QR code recognition technology that is capable of acquiring not only primary information but also additional information about a user's context or a user from a conventional QR code and then providing user customized information, and information provision technology using the same. For this purpose, an apparatus for recognizing a QR code in accordance with an embodiment of the present invention includes a QR code recognition unit, a first information extraction unit, and a second information extraction unit. The QR code recognition unit acquires data including a QR code. The first information extraction unit extracts first information stored in the QR code by decoding the acquired data. The second information extraction unit extracts second information, including relative direction information between the QR code and the QR code recognition unit, from the acquired data.

Abstract: Disclosed are a method of packet classification and a device thereof. A method for packet classification according to one embodiment of the present invention comprises the steps of: partitioning the entire rule set by using key values corresponding to packet fields, into a plurality of rule subsets; generating recursive flow classification (RFC) tables for each of the plurality of partitioned rule subsets; loading, in the same cache line, both partition information and RFC table information commonly corresponding to key values of received packets; searching for a rule subset by using the partition information on the key values of the received packets, which are loaded in the cache line; and searching for an RFC table for a rule by using the RFC table information on the key values of the received packets, which are loaded in the cache line.

Abstract: A system and method for enabling primary and secondary user coexistence for a wireless system includes performing spectrum sensing in a channel to determine primary user usage in a first mode of operation. It is determined whether the primary user usage includes a pattern of usage. If a pattern of usage is detected, a second mode of operation is engaged which includes at least reducing spectrum sensing by a secondary user to permit secondary user usage of the channel.

Abstract: A resource allocation method in a multicarrier communication system where a base station allocates resources to a plurality of mobile stations according to feedback channel information from the mobile stations. The base station receives a resource request message from each mobile station and selects a set of mobile stations offering a maximum system gain without overlapped resources at a specific point in time based on the resource request messages from all mobile stations in the system. The requested resources and then allocated to the selected mobile stations.

Abstract: Disclosed is a handover method for an IP-based next generation mobile communication system.

Abstract: Disclosed herein are a multiple access hierarchical cellular network and a multiple access mobile communication terminal using the multiple access hierarchical cellular network. The multiple access hierarchical cellular network includes a macrocell that is served by Frequency Hopping-Orthogonal Frequency Division Multiple Access (FH-OFDMA), and microcells that are served by Orthogonal Frequency Division Multiple Access (OFDMA). The multiple access mobile communication terminal accesses a macrocell, which is served by FH-OFDMA, using FH-OFDMA when it moves at a speed higher than a predetermined speed, and a microcell, which is served by OFDMA, using OFDMA when it moves at a speed lower than the predetermined speed.

Abstract: A method for performing scheduling on tasks formed for communication between a plurality of nodes in a wireless network having the nodes and a coordinator for coordinating communication between the nodes. Each of the nodes calculates an affinity for at least one task in which the corresponding node participates, and transmits the calculated task affinity to the coordinator. The coordinator assigns priorities to the tasks in the order of level of the task affinities received from the nodes, and transmits the assigned priorities to the nodes.

Abstract: Disclosed is a handover method for an IP-based next generation mobile communication system.

Abstract: Disclosed is an upstream access method in an Orthogonal Frequency Division Multiple Access (OFDMA)-based mobile communication system in which a random access method in an OFDMA network includes randomly selecting, by each subscriber device, one of a plurality uplink random access channels, if a random access request to the OFDMA network is transmitted by each subscriber device, accessing through the selected channel if a collision has not occurred in the selected channel, randomly selecting one of the uplink random access channels, if a collision has occurred in the selected channel, and if the number of retries for channel selection is less than a predetermined value, and determining whether a has collision has occurred, accessing through a finally selected channel, if it is determined that a collision has occurred; and randomly selecting one of the uplink random access channels if it is determined that a collision has occurred.

Abstract: A resource allocation method in a multicarrier communication system where a base station allocates resources to a plurality of mobile stations according to feedback channel information from the mobile stations. The base station receives a resource request message from each mobile station and selects a set of mobile stations offering a maximum system gain without overlapped resources at a specific point in time based on the resource request messages from all mobile stations in the system. The requested resources and then allocated to the selected mobile stations.