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The phenomenon of hiding digital data is as old as the computer systems they reside on. Various incarnations of data hiding have found their way into modern computing experience from the storage of data on out-of-standard tracks on floppy disks that were beyond the reach of the operating system, to storage information in non-data fields of network packets.(More)
First principles calculations have been performed to energetically investigate the helium cluster nucleation, formation and growth behavior in the nano-structured ferritic alloy 14YWT. The helium displays strong affinity to the oxygen:vacancy (O:Vac) pair. By investigating various local environments of the vacancy, we find that the energy cost for He(More)
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