A study was conducted to determine the heat transfer characteristics
of pin finned heat sinks in natural convection. Three pin
diameters were studied: 0.238 cm, 0.318 cm and 0.396 cm. The pins
were attached to the base in two arrangements, triangular and
rectangular, forming a horizontal array. Pin spacing was...
Marginal agricultural and forest lands are currently a focus of concern for public land use agencies in Oregon. Two alternatives for evaluating marginal agricultural lands are the Land Evaluation and Site Assessment (LESA) model of the U.S. Soil Conservation Service and the marginal lands criteria of the 1983 Oregon Legislature's...
Riparian areas are an integral component of fluvial ecosystems. The management of Oregon's riparian areas has come under greater scrutiny since that latest revision of the Oregon Forest Practices Act (1994). Many riparian areas lie within forested areas. Riparian management issues such as anadromous fish population decline and large woody...
Since 1983, the Oregon legislature and the Land Conservation
and Development Commission have been attempting to develop a
process whereby secondary resource lands can be identified and
designated. The most recent attempt at developing a secondary
lands model was completed in 1990 and was tested in six Oregon
Counties. Planners...
The purpose of the research is to develop a methodology
whereby an objective evaluation of the performance approach to land
use planning may be possible. The methodology includes questionnaires
and a field sheet that relate to the administration process of permit
application and indicators of quality in developments. The methodology...
This paper discusses the structure, rationale, and
application of a monitoring system specifically designed to
identify and record conversion of lands with Soil Conservation
Service Soil Capability Classes I-IV. Research methodology and
design are structured to objectively assess the rates of agricultural
land conversion to non-farm uses over a given...
A theoretical study of the heat and momentum transfer resulting
from a flow of power plant condenser effluent discharged vertically to
shallow, quiescent coastal receiving water is presented. The complete
partial differential equations governing steady, incompressible, turbulent
flow driven by both initial momentum and buoyancy are solved
using finite-difference techniques...
A two stage area-point sampling design was tested to estimate land
use change in a fast growth county. Random square miles were selected,
then subsampled at a density of 20 points per square mile. Twelve land
use categories were derived from an aggregation of the USGS Land Use!
Land Cover...