This annual report describes progress in marine radioecological studies
under USAEC Contract Number AT(45-1)2227 Task Agreement 12 during the period
1 July 1970 through 30 June 1971. This contract number replaces USAEC
Contract Number AT(45-1)1750 which started 1 June 1962. Although the basic
report format has not been greatly changed...
This report represents the progress in "Ecological and Radioecological
Studies in the Columbia River Estuary and Adjacent Pacific
Ocean" for the period 1 April 1975 through 31 March 1976. This research
has been supported with funds from the Division of Biomedical and
Environmental Research, U.S. Energy Research and Development Administration...
The progress report that follows includes research results ranging
from unproved ideas to scientific papers published during the tenure of
this contract. The end of the contract year finds several facets of our
work in various states of preparation, therefore the reader is cautioned
that all except the published papers...
This study examines the long-term role of interference on stand development of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) and red alder (Alnus rubra Bong.) planted mixtures in the Central Cascades of Oregon, USA. The two species are common associates in naturally regenerated and planted conifer stands in the Pacific Northwest. Due...
This report presents progress accomplished during the 20-month period from 1 July 1972 through 31 March 1974 as part of the program "Ecological Studies of Radioactivity in the Columbia River Estuary and Adjacent Pacific Ocean". This program is a continuing study supported by the Division of Biomedical and Environmental Research...
Terrestrial chronologies from southern Greenland provide a detailed deglacial history of the Greenland Ice Sheet (GIS). The northern GIS margin history, however, is less established. Here we present surface exposure ages from moraines associated with two large outlet glaciers, Petermann and Humboldt, in the northwestern sector of the GIS. These...
This project is an interactive environment which allows the user to explore various sound generation techniques. The three methods of sound generation used are (1) FM synthesis, (2) Additive synthesis, and (3) Karplus/Strong synthesis of plucked strings. The project also provides the capability to display the generated sound waveforms and...
Linking marine epizootics to a specific aetiology is notoriously difficult. Recent diagnostic successes show that marine disease diagnosis requires both modern, cutting-edge technology (e.g. metagenomics, quantitative realtime PCR) and more classic methods (e.g. transect surveys, histopathology and cell culture). Here, we discuss how this combination of traditional and modern approaches...
The progress report that follows includes research results ranging from unproved ideas to scientific papers published during the tenure of this contract. The end of the contract year finds several facets of our work in various states of preparation, therefore the reader is cautioned that all except the published papers...
If wind power is to become a viable energy alternative, a rapid and reliable cost effective methodology must be established, whereby large areas can be surveyed for windy sites and those sites can be evaluated. Based primarily on locating wind deformed vegetation, this paper establishes the feasibility of using air...
Currently the production of biofuel from algae is not economically competitive with petroleum fuel. However, co-production of high-value products may be able to justify the cost of large-scale algae cultivation. The basic goal of this study is to develop a techno-economic analysis (TEA) and Life-cycle assessment (LCA) for the production...
The demand for transistor circuitry to perform within more
exacting specifications has created the need for a method to accurateIy predict transistor circuit performance. A method utilizing an
electronic digital computer for the analysis of direct-coupled transistor
amplifiers is explained in this paper.
The dc bias levels and the mid-band...
The progress report that follows includes research results ranging from unproved ideas to scientific papers published during the tenure of this contract, The end of the contract year finds several facets of our work in various states of preparation, therefore the reader is cautioned that all except the published papers...
Airfoil flow simulation tests were carried out in a 20-inch
diameter double layer circular electrolytic tank. Results of the
tests indicate that the tank very closely approximates ideal conditions.
The double layer circular electrolytic tank is shown to
generate a very large rectangular tank. Formulas were derived to
show that...
This report presents the results of analyses of several
hundred Pacific Hake, Merluccius productus, for zinc (Zn), zinc-65
(65Zn), cadmium (Cd), and mercury (Hg). The fish were collected
off the coast of the western United States in 1969-1972. In
addition, some data from mercury analyses of fresh and seawater
samples...
Hydrographic and bathythermograph data taken off the Oregon
coast during a two week period in August of 1969 were analyzed to
determine if heat content and mixed layer depth may be used as
indicators of Columbia River plume water.
Heat content was found to be a poor indicator of plume...
Allocentrotus fragilis (Jackson) was obtained from six stations
at depths of 100 to 1260 m on the continental shelf and upper slope off
Newport, Oregon.
Ages and growth rates of A. fragilis were determined by two
methods: 1) A procedure was developed to make growth zones of the
skeletal test...
A time domain simulation model which approximates the
three-dimensional velocity fluctuations of wind turbulence
has been developed. This model is used in a discrete time
control algorithm to regulate the output torque of a wind
turbine by changing the pitch angle of the turbine blade.
The wind model provides a...
It is critical to study factors that are important for origin and maintenance of biological
diversity. A comparative approach involving a large number of populations is
particularly useful.We use this approach to study the relationship between ecological
factors and phenotypic diversity in Icelandic Arctic charr (Salvelinus alpinus).
Numerous populations of...
The change in the oscillation frequency in the current of
an atmospheric helium glow discharge is a sensitive detector
for gas chromatography. The response of the detector is in
the femtomole and picomole range for nonane and decane. The
effluent of a capillary column is directed into a glow
discharge...
"The purpose of this report is to evaluate alternate engineering plans for the disposal of wastes from a kraft process pulp and paper mill located at Toledo, Oregon. These alternatives have been evaluated from the standpoint of estimated annual cost and estimated resulting pollution of Yaquina Estuary in order to...
Switch-mode power supplies (SMPS's) not only convert energy, they also consume it. Typical operational efficiencies are approximately 25 to 60% for linear power supplies, and approximately 50-90% for switching power supplies. This means that products whose end-use electronics are dc, such as televisions and DVD players, could consume 50% less...
.................................................................... 65
5.29 Input and output power with C = 33uF, L= 8uH after modification.... 66
5.30 Input and
The work described herein details the synthesis and application of
biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents
on the aryl ring of the terminal acetylenic carbon. From this work, we
successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps
from inexpensive commercially...
Polychaete annelids from 48 benthic samples containing over
2000 specimens were identified. Samples were taken with either an
anchor dredge or an anchor-box dredge from a 15 station transect
(44° 39. 1'N) that ranges from 800 to 2900 meters in depth. Sediment
subsamples were collected and analyzed for organic carbon...
In order to estimate wind turbine residL2;characteristics
in the presence of atmospheric turbulence, the important atmospheric
sources for the force excitations felt by the wind turbine system
must be identified and characterized. The goal of this research
is to develop the wind turbulence input model for horizontal axis
wind turbines....
A method for measuring chemical reaction rates in order to
distinguish between different reaction mechanisms is presented.
This method was used to study zero -, first- and second -order reactions
by analyzing the output response to a sinusoidal input of
reactant concentrations in an isothermal continuous stirred tank
reactor.
The...
This thesis describes the adder to be used with the Galaxy computer, which is to be constructed at Oregon State University.
The need for faster, more reliable adders is discussed
along with previous adder designs related to the
Galaxy Fast Carry Adder.
Both the logical design and circuit design of...
The life cycle of Callianassa californiensis Dana, 1854, was
studied in the tidal estuary, Yaquina Bay, Oregon. At this latitude
it is largely restricted to intertidal sandy mudflats under predominately
marine influence. Salinity and temperature appear to determine
its distribution to a greater extent than does sediment type.
Vertical movement...
With the development of high performance power electronic and semiconductor technologies, Adjustable Speed Drive (ASD) systems are increasingly applied in residential, commercial and industrial applications. Due to the advantages at higher power ratings, the three-level Neutral-Point-Clamped (NPC) Voltage Source Inverter (VSI) is being employed in industrial and traction applications, static...