Gain characteristics of 8-channels Er-doped bismuthate waveguide array are measured under bidirectional pumping at 1480 nm. Over 19-dB gain with flatness of 2 dB at whole C-band has been obtained ...

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Object Details Description The first UNIVAC I computer was sent to the Bureau of the Census in 1951 and printed out this, its last program, on October 3, 1963. Those signing the printout include J.

3D printing is the latest thing to excite anyone who loves easy-to-use interactive technology. Engineers and scientists have actually been working with this amazing equipment since way back in ...

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