摘要:
Provided are a method and apparatus for obtaining a minimum cost vector for making a skyline object in a multi-dimensional space. The method includes calculating respective vector values having a query point and respective moving points to which the query point is moved as both end points in a multi-dimensional space having a plurality of coordinate axes, and selecting a vector value whose moving point is included in a skyline and has the minimum distance value from the query point as the minimum vector value from among the vector values.
摘要:
Disclosed is a dynamic load balancing system. The dynamic load balancing system includes a resource management master managing bare servers that do not execute services and having a hierarchical structure and a service master dynamically allocating the bare servers to a load balancing server or a service execution server or dynamically releasing the pre-allocated load balancing server or service execution server by the bare servers, in consideration of monitoring information on a state or performance of a server and service requirements to be provided.
摘要:
Provided are a method and apparatus for obtaining a minimum cost vector for making a skyline object in a multi-dimensional space. The method includes calculating respective vector values having a query point and respective moving points to which the query point is moved as both end points in a multi-dimensional space having a plurality of coordinate axes, and selecting a vector value whose moving point is included in a skyline and has the minimum distance value from the query point as the minimum vector value from among the vector values.
摘要:
Provided are a system and a method for distributing multimedia streaming service request based on wide area network which can efficiently support multimedia streaming service in wide area network. The system for distributing multimedia streaming service request based on wide area network includes a user terminal, a wide area server, and a local server. The user terminal requests multimedia streaming service. The wide area server for selecting a local server which is disposed nearest to the user terminal and has node availability and service availability, and providing contents requested by the user terminal to the selected local server. The local server provides the multimedia streaming service to the user terminal using the contents provided from the wide area server.
摘要:
A method and apparatus for providing a peer-to-peer (P2P) based streaming service are provided. The method provides a streaming service in a peer-to-peer (P2P) network comprising a plurality of peers. That is, a receiving peer requests a plurality of transmitting peers having contents for a streaming service among peers in the P2P network to transmit the contents. Then, the receiving peer receives identical portions of the same content from the plurality of transmitting peers at the same time. After receiving, the receiving peer provides a streaming service for the received content from a first transmitting peer among the plurality of transmitting peers to a user.
摘要:
Provided are a phosphor, a phosphor manufacturing method, and a white light emitting device. The phosphor is represented as a chemical formula of aMO-bAl2O3-cSi3N4, which uses light having a peak wavelength in a wavelength band of about 350 nm to about 480 nm as an excitation source to emit visible light having a peak wavelength in a wavelength band of about 480 nm to about 680 nm (where M is one kind or two kinds of elements selected from Mg, Ca, Sr, and Ba (0.2≦a/(a+b)≦0.9, 0.05≦b/(b+c)≦0.85, 0.4≦c/(c+a)≦0.9)).
摘要:
An anion exchange composite membrane is filled with crosslinked polymer electrolytes for fuel cells. A method comprises, (A) preparing anion exchange electrolyte precursor solution, said anion exchange electrolyte precursor solution consisting of a electrolyte monomer of tetravalent ammonium salt having a cation, a bisacrylamide crosslinker having tertiary amine functional group, an initiator and water; (B) impregnating a porous polymer supporter into said electrolyte precursor solution; (C) forming primary anion exchange crosslink polymer electrolyte micropore filling membrane by laminating said polymer supporter and crosslinking within a film; (D) deriving quanternary ammonium of said crosslinker having tertiary amine functional group by immersing said primary anion exchange crosslink polymer electrolyte micropore filling membrane in Vinylbenzyl chloride monomer solution; and (E) preparing composite membrane filled with crosslinked polymer electrolytes by crosslinking after said ammonium deriving is complete, said crosslinking being radical polymerizing vinyl group of said electrolyte micropore filling membrane.
摘要:
An anion exchange composite membrane is filled with crosslinked polymer electrolytes for fuel cells. A method comprises, (A) preparing anion exchange electrolyte precursor solution, said anion exchange electrolyte precursor solution consisting of a electrolyte monomer of tetravalent ammonium salt having a cation, a bisacrylamide crosslinker having tertiary amine functional group, an initiator and water; (B) impregnating a porous polymer supporter into said electrolyte precursor solution; (C) forming primary anion exchange crosslink polymer electrolyte micropore filling membrane by laminating said polymer supporter and crosslinking within a film; (D) deriving quanternary ammonium of said crosslinker having tertiary amine functional group by immersing said primary anion exchange crosslink polymer electrolyte micropore filling membrane in Vinylbenzyl chloride monomer solution; and (E) preparing composite membrane filled with crosslinked polymer electrolytes by crosslinking after said ammonium deriving is complete, said crosslinking being radical polymerizing vinyl group of said electrolyte micropore filling membrane.
摘要:
Provided is a multi-functional vehicle including: a sampling unit through an external air flows in, the sampling unit having a particle sampling inlet tube and a gas sampling inlet tube; a flow distribution unit for supplying the air flowing in through the particle sampling inlet tube to a particle measuring device; a manifold for supplying the air flowing in through the gas sampling inlet tube to a gas measuring device; a particle measuring device for measuring particles in the air supplied from the flow distribution unit; a gas measuring device for measuring gas in the air supplied from the manifold; an animal exposure chamber system for receiving the air from at least one of the flow distribution unit and the manifold and performing an animal exposure experiment; and a data management unit for storing and monitoring air pollution data measured by the particle measuring device and the gas measuring device.
摘要:
A mobile communication terminal including an input unit, a display unit, a receiving unit configured to receive a signal including at least one interactive function, a memory configured to store at least one symbol indicating a type of the at least one interactive function, and a control unit configured to detect the type of the interactive function included in the signal received by the receiving unit, to search the memory for the symbol indicating the at least one interactive function, to control the display unit to display the searched symbol, and to control an operation of the interactive function according to a signal provided via the input unit.