The purpose of this investigation was to study the role of pectin
in protecting casein from coagulation by heat and acid during the
preparation of tomato soup. Three varieties of tomatoes were used
for the study, Ace, Improved Garden State and Campbell 146, and
each variety was processed two ways,...
A microscopic study was conducted on specific gravity wafers taken from standard tensile strength specimens of young growth Douglas-fir. Samples were studied to determine the effect of variables such as percent summerwood, fiber length and fibril angle on tensile strength of Douglas-fir. The sample specimens were picked so effects of...
Nine experiments were conducted during 1964 and 1965 to study
the methods of reproduction and mode of spread of sago pondweed
(Potamogeton pectinatus) in irrigation systems.
Frequent treatments of sago pondweed foliage with aromatic
solvent greatly reduced the number of tubers in the substratum of
an irrigation canal. However, complete...
A short history is given of cathode-ray tubes, from the
earliest laboratory tubes available during the early 1900's through
present day high performance tubes. Special attention is paid to
the development of post-deflection acceleration types especially
band-type PDA tubes and an improvement on that type known as the
helix-type PDA...