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Data Mining with Big Data e-Health Service Using Map
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... Today everybody talks about e-health, but some people have come up with a clear definition by comparing with new term. In the previous year of 1999 it used rarely but now it seems to serve as a general "buzzword”, which is used to characterize not only internet medicine, but also everything which is ...
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© 2011 by The 451 Group. All rights reserved
© 2011 by The 451 Group. All rights reserved

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... Single-mode photonic waveguides, based on silicon typically have sub-micron cross-sectional dimensions. Either the waveguide thickness can be larger than width or vice-versa. Some of the advanced silicon photonic devices including modulators, waveguides, resonators, filters, grating couplers etc., a ...
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3D optical data storage



3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".
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