Diffusion coefficients for isopropyl alcohol-air, isopropyl
alcohol-argon, isopropyl alcohol-mixture of argon 1
: air 1, isopropyl
alcohol-mixture of argon 1
: air 2, and carbon tetrachloride-air system were determined, using an Arnold cell technique.
The measured
carbon tetrachloride-air system diffusion coefficient was compared
with previously measured values to verify the...
The fungus Verticillium dahliae Kleb. causes a wilt disease of
peppermint, Mentha pipertita L. Propane flaming of peppermint
stubble is widely used to control Verticillium wilt in the Willamette
Valley of Oregon, but little is known about the temperature required
for effective control of the fungus.
The purposes of this...
By an Arnold cell technique, the diffusion coefficients of propanol
and methanol in mixtures of air and argon system have been determined.
The carbon tetrachloride-air system was also studied to verify
the reproducibility of the experimental method.
The diffusion coefficients were compared with experimental
values when available and with values...
Increasing demands on earth resources require the need to
know how much resource is present. A new technology, which is
developing partially with the support of the National Aeronautics and
Space Administration, will help to inventory and monitor surface resources
in a more comprehensive manner than previously possible.
Research in...
This study was conducted in the old-growth forests of Clatsop,
Tillamook, and Lincoln counties, Oregon. The three objectives of
the research were to describe and classify the near-climax plant
communities found within the forests, to relate the associes described
by a previous study to the forest communities characterized by the...
The purpose of the research was to computerize mathematical
procedures for the analysis of range vegetation and environmental
data. The specific objectives were as follows:
1. to develop and apply computer techniques to the classification
of vegetation in order to provide a phytosociological
framework within which to investigate the ecology...
Sisson's formally exact series solution for momentum, heat and
mass transfer in steady two-dimensional or axi-symmetrical constant-property,
laminar boundary layer flow was examined. A new series
was proposed for the boundary condition accounting for the mass
transfer at the surface of the body on which the boundary layer is
formed....
The fungus Phoma menthae Strasser causes black lesions and
cankers on stems and rhizomes of Mentha piperita L. The purpose
of this thesis was to: 1) study the production of polygalacturonase
(PG) and macerating enzymes (ME) by P. menthae in vivo and in
vitro, 2) study the effects of phenolic...