Double Exposure and Network Economics

2013 ◽  
pp. 3-12
Keyword(s):  
Network Economics ◽  
Double Exposure

A Device for Magnification Measurement

1972 ◽  
Vol 30 ◽  
pp. 622-623
Author(s):  
J.A. Eades ◽  
A. van Dun
Keyword(s):  
Electron Microscope ◽  
Small Displacement ◽  
Private Communication ◽  
Piezoelectric Crystal ◽  
Double Exposure ◽  
Standard Methods ◽  
Elegant Method ◽  
The Right ◽  
Piezo Electric

The measurement of magnification in the electron microscope is always troublesome especially when a goniometer stage is in use, since there can be wide variations from calibrated values. One elegant method (L.M.Brown, private communication) of avoiding the difficulties of standard methods would be to fit a device which displaces the specimen a small but known distance and recording the displacement by a double exposure. Such a device would obviate the need for changing the specimen and guarantee that the magnification was measured under precisely the conditions used.Such a small displacement could be produced by any suitable transducer mounted in one of the specimen translation mechanisms. In the present case a piezoelectric crystal was used. Modern synthetic piezo electric ceramics readily give reproducible displacements in the right range for quite modest voltages (for example: Joyce and Wilson, 1969).

Therapist in Double Exposure

1964 ◽  
Vol 9 (1) ◽  
pp. 2-3
Author(s):  
FRED FOSMIRE
Keyword(s):  
Double Exposure

Long-reach access and future broadband network economics

2007 ◽  
Author(s):  
R.P. Davey ◽  
D.B. Payne ◽  
D. Nesset ◽  
P. Tomlinson ◽  
T. Gilfedder ◽  
...  
Keyword(s):  
Network Economics ◽  
Broadband Network
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