A Simple Photoelectric System that Keeps a Rotating...

Transactions of the ASAE 1972 Vol. 15; Iss. 1

A Simple Photoelectric System that Keeps a Rotating Phytotron Unit Facing the Sun

F. P. Zscheile,, Jr.,, L. W. Neubauer and J. H. English,
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Volume:
15
Year:
1972
Journal:
Transactions of the ASAE
DOI:
10.13031/2013.37841
File:
PDF, 808 KB
1972
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