backup system research paper-12

backup system research paper-12






A backup power system using ultracapacitors
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B ackup power systems are an integral part of most, if not all, mission-critical installations. Services as varied as data centers, communications networks and plant operations rely on continuous availability of quality power. Small backup systems traditionally rely on

Improvements in Feeder Protection-Providing a Primary and Backup Relay System Utilizing One Relay Per Feeder
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ABSTRACT Today many electric utilities will not rely on a single relay per feeder to provide the protection required. In recent history, when electromechanical relays were common, there was always a built-in backup relay. With the advent of modern three-phase

Magnus: Peer to Peer Backup System
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ABSTRACT Magnus is a peer-to-peer backup system for reliable and persistent data store using surplus resources. Magnus achieves its reliability and minimizes storage by using Erasure Coding to distribute fragments to different peers for backup. Decoding the fragments takes

Development and Testing of the Backup Bearing System for an AMB Energy Storage Flywheel
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ABSTRACT A 140 kW energy storage flywheel has been developed to provide 15 seconds of ride-through power for industrial UPS applications. The flywheel, which operates in a vacuum, is supported by Active Magnetic Bearings (AMB) to minimize bearing losses, and

A Secure Distributed Backup System
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ABSTRACT Current backup systems for personal and small-office computer users usually rely on secondary on-site storage of their data. Although these on-site backups provide data redundancy, they are vulnerable to localized catastrophe. More sophisticated off-site

Analysis of erasure coding in a peer to peer backup system
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ABSTRACT The peer to peer architecture model is widely used today for distributed systems deployment, which is increasingly becoming used as a model for disk back up systems. Currently, popular peer to peer back up systems use replication to ensure data

TLFS: High performance tape library file system for data backup and archive
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ABSTRACT. A tape library is seldom considered as a viable place for constructing a file system for a sequential write/read device. Storage virtualization technology has become a buzzword in technology circles lately, in this paper we propose a tape library file system, called TLFS

The design of a backup reactor shutdown system of DFBR
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ABSTRACT This paper outlines the status of the development of passive safety measures to achieve subcriticality in DFBR. Two independent reactor shutdown systems (RSSs), a primary RSS and a backup RSS, are provided each of which can rapidly bring the reactor

AVIONICS SOFTWARE DEVELOPMENT TRIALS, TRIBULATIONS, AND SUCCESSES: THE BACKUP FLIGHT SYSTEM
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The initial design of the Orbiter flight control system was limited to the quad-redundant computer complex. Systems management and nonavionic functions were contained in a fifth computer, which was not considered flight critical. This concept was well into development

An On-line Backup Function for a Clustered NAS System (X-NAS)
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ABSTRACT An on-line backup function for X-NAS, a clustered NAS system designed for entry- level NAS, has been developed. The on-line backup function can replicate file objects on XNAS to a remote NAS in real-time. It makes use of the virtualized global file system of X-

Backup and recovery mechanism for a distributed e-learning system
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ABSTRACT We have developed a distributed asynchronous Web based training system. In order to improve the scalability and robustness of this system, all contents and a function that scores user s answers are realized on mobile agents. These agents are distributed to

New LORAN Receiver Technology Significantly Improves Overall System Performance and Substantiates LORAN Viability as GPS Backup
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ABSTRACT Although the 1991 addition of South Central and North Central Loran chains greatly improved Loran coverage in North America, Loran receiver technology had not advanced concurrently to take advantage of the increased signal availability and changes

Design and implementation of an embedded backup system
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ABSTRACT Most existing data backup systems are too professional to understand. It usually needs time-consuming training for a man to learn how to configure the backup system to make sure it works well. This has greatly affected the data backup systems popularity. In

Research on Disaster Backup System when Bank Information Crash
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Z ZHENG ,bmtfi.net ABSTRACT The bank centralized by data must establish corresponding disaster backup center in order to ensure safety of data and sequence of operation, otherwise the loss is disaster when the unpredictable disaster happens. This article analyses principal and key

Market Design for a P2P Backup System
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Peer-to-peer (P2P) backup systems are an attractive alternative to server-based systems because the immense costs of large data centers can be saved by using idle resources on millions of private computers instead. This paper presents the design and theoretical

Meaning, Impact and the Strategic Significance of Developing Regional Backup ServiceSystem of Modern Construction Industry
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F LING, G WANG ,bmtfi.com ABSTRACT Modern construction industry in consistence with regional planning is increasingly becoming an industrial value chain cluster of dynamic economic growth, which relies on local industrial value chain to promote the effectiveness of the overall system and achieve

FLIGHT SOFTWARE FAULT TOLERANCE VIA ME BACKUP FLIGHT SYSTEM
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AB STRACT A generic software error in the quadruply redundant primary flight system could result in the catastrophic loss of Space Shuttle vehicle control in the hostile environment of ascent or reentry. The Space Shuttle backup flight system was designed to protect the

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