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Radial Vibrations in Short, Hollow Cylinders of Barium Titanate (open access)

Radial Vibrations in Short, Hollow Cylinders of Barium Titanate

The mathematics has been developed for the determination of the radial coupling coefficient for a hollow cylinder of electro-strictive material whose length is small compared to its outside diameter.
Date: December 10, 1954
Creator: Stephenson , C. V.
System: The UNT Digital Library
A Human Engineering Guide to the Arrangement of Elements on a Control Panel (open access)

A Human Engineering Guide to the Arrangement of Elements on a Control Panel

This memorandum is a compilation of general information concerned with the arrangement of elements on a control panel. Arrangement considerations that lead to to improved ease and accuracy of operation are presented to assist the engineer in designing new control panels.
Date: December 10, 1954
Creator: Williams, H. L.
System: The UNT Digital Library