In this Coastal and Hydraulics Engineering Technical Note (CHETN), Artificial Neural Networks (ANNs) are used to address the missing data recovery problem for the data collection activities for a tidal lagoon, Biscayne Bay, FL.
The first part of the data is considered as the input, and the second part is regarded as the output function and contains the missing window.
Using the surface elevation to recover the salinity concentration at the same location (sta 11) was the second application.
CONCLUSIONS: ANNs were used to simulate missing data recovery.
"An optimal design of field data collection for improving numerical model verification," Proceedings of the 27th Congress of the International Association of Hydraulic Research, San Francisco, 815-820.
PS 1-3-2 Backup
The purpose of the UTMB Backup and Data Recovery Practice Standard is to establish the rules for the backup and storage of electronic UTMB information.
The UTMB Backup/Data Recovery Practice Standard applies to all individuals within the UTMB enterprise who are responsible for the installation and support of Information Resources (IR), individuals charged with IR Security, and data owners.
Physical and administrative controls employed at offsite backup storage locations must meet or exceed access requirements of the original system, thus ensuring the confidentiality, integrity, and availability of the information stored.
Violation of this practice standard may result in disciplinary action which may include termination for employees; a termination of employment relations in the case of contractors or consultants; or suspension or expulsion in the case of a student.
crc99 Industrial Sponsor: Conexant Systems, Inc. Clock recovery circuits which extract the clock signal from random NRZ data are very important to the multigigabit-per-second integrated receivers.
In a PLL, the phase detector is a key component which determines several significant properties of the PLL.
The simulation tool is Matlab, and a PLL is modeled by decomposition into major functional blocks-phase detector, loop filter and VCO.
The loop filter is represented by its transfer function, which is determined by the loop parameters, gain of VCO and gain of phase detector.
2.2.3 Noise performance Noise performance is a critical PLL specification.
Design for low phase noise is probably the most challenging part in the design of a CRC.
xapp250
This application note and reference design outline a method to implement clock and data recovery in Virtex(TM)-II devices.
The speed of operation is limited by the maximum input clock frequency from an external VCO and internal routing resources.
Once the VCO is locked to the approximate bit-rate frequency as defined by the reference clock using a simple PFD (see "3-State Phase Detector"), the logic circuitry switches the VCO correction values to the inputs of the delay line phase -- frequency detector (DLPFD).
This design example is needed to track temperature related voltage changes.
09/12/03 1.2 Added new section on Active Loop Filters.
easyrecovery60http://www.ontrack.co.uk/library/easyrecovery60.pdf
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The EasyRecovery Professional Commercial License is licensed per technician for commercial and consulting use to recover, repair, and restore data.
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We also offer the same high level of expertise on-site when the need arises.
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factors to data loss are hardware or system malfunctions and human error in total accounting for almost 75% of all incidents.
Data recovery is a system of processes used to recover lost data from a variety of media sources including hard disk drives, floppy diskettes or tape backups.
In almost all situations CBL succeeds in recovering most of the data even under extreme conditions.
They trust CBL with their data because they know CBL is committed to success.
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13093
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· constant remote site disk mirroring of data and logs Ensuring recoverability typically requires the use of more than one of these recovery techniques.
For a detailed study of advanced technology recovery techniques, see the white paper, Remote Recovery---Advanced Technology Solutions for OS/390 Recovery, at http:// www.bmc.com/products/whitepapers.cfm.
Although this white paper was written specifically for the OS/390 environment, many of the technology options it describes have a distributed systems equivalent, and the relative merits are similar.
Remote Journaling and Data Recovery
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With Remote Journaling you have the data available, but you can't use the APY/RMVJRNCHG commands against a Remote Journal object.
This is because while the Remote Journal does have objects associated with it they reside on the source system, as this is now dead in the water those objects can't be accessed.
The remote journal receivers are going to have the same starting point as the local receivers on the target system, when we created the local journal environment we attached a receiver RCV0000001, the Remote Journal would be created as a mirror image of the source system local journal, therefore it will also have a receiver attached RCV0000001.
