In order to appraise timber, it is necessary to estimate logging costs with reasonable accuracy. The purpose of this study is to provide a rethod for estimating log loading costs in the Intermountain Region. Nine different log loaders were studied loading from cold decks on six USDA. Forest Service timber...
The heat exchange of individuals in a foraging mixed population
of Zonotrichia leucophrys and Zonotrichia atricapilla in western
Oregon is analyzed with respect to the direction of stance and
feeding location. Values for heat gain or loss in the field were
generated from a model that estimates the equivalent black-body...
Sporulation in the yeast Saccharomyces cerevisiae involves
the process of meiosis which is accompanied by ascospore formation.
Using intact cells or spores, preliminary biochemical evidence is
given to identify ascospore wall components not found in vegetative
cell walls. Cell surface components are solubilized by treatment
with 8 M urea and...
Lead (Pb) and cadmium (Cd) are naturally occurring heavy metals
which have been redistributed to a large extent by man in the environment.
These metals have certain common toxic sites of action on
biological systems of mammals. Simultaneous exposure to Pb and Cd
is highly probable due to common sources...
With the advent of LSI, iterative forms of realization
of digital systems are becoming increasingly popular with
system designers. Many problems occurring in digital computer
design render themselves suitable for iterative
realization. These include adders, arithmetic logic units,
coding and decoding circuits and so on. Fault-free functioning
of such systems...
The thesis examines the applicability of a two-dimensional flow acceleration model to describe a terrain-induced flow perturbation as measured at Yaquina Head on the central Oregon coast. The geometry of Yaquina Head together with the upstream wind values were used in estimating hilltop winds. These estimates compare well with the...
Three samples of different wood densities of Douglas-fir
(Pseudotsuga menziesii (Mirb.) Franco) were cooked by
the kraft process. The yields and the Kappa numbers were
studied to establish the rates and the energies of activation
of the pulping and delignification reactions
respectively. Wood properties did not show significant
effects on...
A survey of partial cuts planted with bare-root seedlings, was conducted on the Prospect Ranger District, Rogue River National Forest, Oregon, during the 1977 summer season. The purpose was to assess stocking and its composition under present levels of canopy cover, and to determine relationships between canopy density and performance...
Critical skyline and mainline tensions were identified as the conditions necessary for successful carriage passage uphill over an
intermediate support jack. These critical tensions were measured during field tests and compared with predicted values from weightless line, rigid link, and catenary analyses. All three analyses predicted
critical skyline tensions within...
Early diagnosis is essential for proper management of the Marfan syndrome, yet due to diverse manifestations of the disorder, specific diagnosis is difficult. Excessive growth of the long bones constitutes a major characteristic of the syndrome; thus differences in growth patterns from those of the average child suggest a possible...
