摘要:
The present invention relates to a file system, an apparatus in the file system thereof, and a method of providing and managing content in the file system thereof. According to the present invention, it may be possible to minimize data loss caused by server failure and to provide the convenience of data (content) management by (1) grouping overall data nodes (servers) to manage with a network server group including several data nodes (servers), (2) defining content management information, (3) storing and duplicating contents in each network server group using the defined content management information to maintain and manage the contents, (4) and maintaining and managing the contents in a file unit without using file chunks.
摘要:
An anion generating and electron capture dissociation apparatus using cold electrons, which comprises a cold electron generation module configured to generate a large quantity of cold electrons from ultraviolet photons radiated into a mass spectrometer vacuum chamber which is in a high vacuum state has a plurality of ultraviolet diodes configured to emit the ultraviolet photons in the mass spectrometer vacuum chamber. Micro-channel plate (MCP) electron multiplier plates induce and amplify initial electron emissions of the ultraviolet photons from the ultraviolet diodes, and generate a large quantity of electron beams from a rear plate. An electron focusing lens is configured to focus the electron beams amplified through the MCP electron multiplier plates. A grid is configured to adjust energy and an electric current of the electron beams together with the electron focusing lens.
摘要:
The present invention relates to a file system, an apparatus in the file system thereof, and a method of providing and managing content in the file system thereof. According to the present invention, it may be possible to minimize data loss caused by server failure and to provide the convenience of data (content) management by (1) grouping overall data nodes (servers) to manage with a network server group including several data nodes (servers), (2) defining content management information, (3) storing and duplicating contents in each network server group using the defined content management information to maintain and manage the contents, (4) and maintaining and managing the contents in a file unit without using file chunks.