The design and testing of a portable pumping system for use in
the hydraulic excavation of commercial crab pots buried by ocean
sediment was undertaken. The resulting portable system retained the
four major components of the pumping systems presently used by
commercial fishermen: engine, pump, fire hose, and nozzle. Because...
An investigation concerning the acceptance of a new, legend drug
product was conducted within a community of 15,000 population.
Twenty-eight physicians within the community were chosen for evaluation
relative to acceptance of the new drug product.
Data were obtained by means of a prescription audit of nine retail
pharmacies in...
The study investigated the prescription drug
purchasing behaviors of independent retail pharmacies,
and selected pharmacy characteristics which may be related
to purchasing behaviors. The purchasing function
was considered as a major area of concern for independent
pharmacies in attempting to improve operating efficiencies,
particularly in view of increased competition
from...
An experimental study was made of acoustic switching of
pneumatic turbulence amplifiers. The development of fluidic devices
was generally reviewed, and the operation of the pneumatic turbulence
amplifiers made for testing was described. The characteristics
of the turbulence amplifiers were experimentally determined
and found to be typical for this type...
Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities...
In an attempt to satisfy an existing need for a small gas
sample pump, a proposed design was analyzed and determined to be
feasible and a design for a prototype model was produced. The
design is of a chemically inert, leak-proof, unlubricated, sliding-vane-
type pump. It is designed to pump...
This research examined the biology of barb goatgrass (Aegilops triuncialis L.) a weedy annual grass that is invading the rangelands of California. Germination and root growth characteristics of barb goatgrass were compared to soft chess (Bromis mollis L.), medusahead rye (Taeniatherum caput-medusae (L.) Nevski), slender wild oats (Avena barbata L.),...
Small herds of cows were observed and spatially mapped over continuous twenty-four hour periods. Treatments were implemented that investigated the effect of water site and supplementation on animal distribution patterns. A series of six observation periods constituted each observation series. Observation series were repeated winter (January) and summer (July) for...
We studied the distribution and habitat selection differences between
Spanish breed (Corriente and Longhorn mix) and British breed cattle (Angus,
Hereford). This study was located on the Zumwalt prairie during the spring and
fall and along the Imnaha river for the winter. Each trial ran for two weeks and in...
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Douglas Johnson
We studied the distribution and habitat selection differences between
