Published July 1939. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
One of the most serious problems confronting modern America
is the efficient and rational utilization of the recreation resource base,
not only in terms of present demands and needs, but future as well.
The resource manager, in the past, has had few guidelines from
which to determine the type and...
Women entrepreneurs are an economic force within the American and Oregon economy. Women are starting businesses at two to five times the rate of men. There has been significant research detailing the demographics, barriers, and business management skills of women business owners. Yet, the research to date has been limited...
The conceptual framework of an erosion model has been designed to link processes of mass wasting, surface erosion, and channel storage and transport. A program to stimulate mass wasting will be based on a variation of the factor of safety approach which balances forces tending to drive mass movement against...
Although much effort has been invested to build applications that support group work, collaborative applications have not found easy success. The cost of adopting and maintaining collaborative applications has prevented their widespread use, especially among small distributed groups. Application developers have had difficulties recognizing the extra effort required by groups...
The concept of large-scale natural resources planning and
management is not new. The idea that resources and their human users occur as systems over large geographic areas has a long established tradition in forest, range, water, and air management sciences. Recent trends in this thinking concern the recognition of the...
Much like wind energy in its early years, marine energy has vast potential, and wave energy converter (WEC) concepts are constantly in development. Consequently, wave energy faces many challenges for expansion and has a wide-ranging design space of WEC concepts. The large design space demands new methods for understanding the...
Since the introduction of lean manufacturing by Toyota and publication by Womack and Jones, organizations have realized sizeable gains through lean process improvement. The spread of lean practices across organizations and industries – from manufacturing to healthcare and construction – requires adjustments of the lean process and, in the case...
An interface was developed between COMSOL Multiphysics™ finite element analysis software and (geo)chemical modeling platform, GEMS, for the reactive-transport modeling of (geo)chemical processes in variably saturated porous media. The two standalone software packages are managed from the interface that uses a non-iterative operator splitting technique to couple the transport (COMSOL)...
Much has been written concerning the determination
of a single sampling plan given two points on the operating characteristic (OC) curve. A computer program is
presented which will provide minimum sample size for
single sample attribute sampling plans. The program
provides sampling plans based on the binomial distribution. It incorporates...
This project aims at building a Java application and a Java applet that would simulate a Stern-Gerlach laboratory in Quantum Mechanics. The project provides a tool for allowing the student to quickly design and run on the computer screen a number of experiments involving spin systems. This application could be...
In current practice, design documentation often fails
to support the activities of design understanding,
communication, and redesign. A Design History Tool has been
developed to improve current design documentation. This
tool is a computerized design history that represents and
plays back important information generated during the
process of designing a...
Qualitative data analysis (QDA) is a time consuming and, potentially unreliable research activity. In qualitative research, a number of tasks must be repeated for every new research case, even if each case is closely related or is in the same area of study.
Existing QDA applications provide users with a...
This study was initiated to determine the relative efficiency
of systematic, stratified and simple random sampling for crown area
and tree frequency estimation of five of the major forest types found
in the Pacific Northwest. Several of the more common methods of
estimating spatial distribution coefficients were evaluated. Finally
the...
Published October 1967. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Four study sites were selected along an altitudinal gradient on Mt. Ashland in the Siskiyou Mountains of southern Oregon. The altitudinal gradient roughly corresponded to a gradient in temperature and water availability ranging from very hot and dry to cool and moist. Air and soil temperatures were continuously measured on...
The dynamics of land use in the State of Oregon are simulated
on a digital computer. The introductory chapter outlines the complex
nature of the problems facing the post-industrial society and argues
that the scientific and professional estates share in the responsibility
for public policy formulation. The second chapter .presents...
Chemical equilibrium is a major factor in many natural and
industrial systems. The ability to predict ionic equilibrium is
extremely valuable in industry in solving problems without the costs
involved in full scale experiments. An example of an application in
the pulp and paper industry is the prediction of non-process...
The development of the energy crisis has caused the
use of depletable energy resources to be monitored quite
closely in the United States. Within the agricultural
sector, irrigation is a large user of energy, with the
potential of using many times more energy than all other
agricultural field operations. A...
Mass transfer from a single rising gas bubble in water may be analyzed by numerical methods. In this study the simultaneous differen- tial equations which describe two component mass transfer from a rising gas bubble are solved by numerical integration. This is accomplished using a computer model which employs a...
Significant reductions in the number of defects in parts
produced by investment casting can be obtained by improving
the flow of the molten metal during pouring. Studies have
been done at Oregon State University with simulated casting
techniques to determine optimal mold configurations.
Better mold layouts have been shown to...
This paper describes a computer program developed for the Hewlett
Packard 9830, which analyzes and computes costs and engineering
data for paper plan timber harvest road networks. The program will
accept up to 110 road segments. Each segment is analyzed individually
based on digitized data from a contour map and...
A new, computer oriented system for automatic, in situ
monitoring of water quality is proposed which makes full and effective
use of modern computer technology. The main objective of this thesis
work was the development of the concept for in situ computer controlled
experimenting as a reasonable and effective means...
The High Temperature Lattice Test Reactor (HTLTR) at Richland,
Washington, operates at temperatures up to 1000°C. Its low nuclear
power requires a 384 kilowatt electrical heating system, that is
divided into four circuits, to attain the high temperatures in the
ten-foot cube of moderating graphite. This thesis describes the
design...
The determination of the optimal location of transceivers is a critical design factor when deploying a wireless local area network (WLAN). The performance of the WLAN will improve in a variety of aspects when the transceivers' locations are adequately determined, including the overall cell coverage to the battery life of...
A complete approach to uncertainty management requires support for interactive and incremental problem formulation, inference, hypothesis ranking, and decision making. In addition, computational models must allow for time and resource bounds. Current approaches to uncertainty management concentrate primarily on inference, provide little or no support for the larger issues in...
A computational model for a resonantly coupled alpha free-piston Stirling cooler
is presented. The cooler consists of two isothermal working spaces for compression and
expansion connected by a regenerator consisting of a stack of narrow parallel channels.
The regenerator is assumed to have a linear temperature distribution along its axial...
Let H be a cyclically-presented group on n generators with a single defining relator. Attempts have been made to classify such groups by their order, their status as a 3-manifold group, and the asphericity status of their presentations. For groups with a defining relator of length 3 these classifications are...
The nuclear industry has shown a large interest in natural circulation driven passive cooling systems following the Fukushima nuclear accident. Despite this interest, there is no widely used heat transfer correlation or friction factor correlation developed for natural circulation driven flow. A CFD analysis including grid convergence testing using Fluent...
It is desirable for complex engineered systems to perform missions efficiently and economically, even when these missions' complex, variable, long-term operational profiles make it likely for hazards to arise. It is thus important to design these systems to be resilient so that they will actively prevent and recover from hazards...
The subject of fluid-structure interactions (FSI) are a matter concerning the design of any element immersed in a fluid. One of the most critical phenomena embedded within the scope of FSI is the creation of vortex-induced vibrations (VIV). These type of vibrations originate in a given body as a result...
The potential of red blood cell (RBC) and platelet damage was studied for a novel microfluidic hemoperfusion device currently in development at Oregon State University for use in treating sepsis. COMSOL 4.4's computational fluid dynamics (CFD) module was used to examine shear rate profiles in laminar, Newtonian blood flow throughout...
Vibration of nuclear fuel rods is an area of significance for the long-term safe operation of any nuclear power plant. One mechanism of vibration, flow induced vibration (FIV), must be quantified when designing a new core, such as a sodium fast reactor which employs helically-wrapped wire spacers. Experimental work undertaken...
A phoswich detector with two scintillation layers has been designed and assembled at Oregon State University. This detector is able to identify and reject Compton events and ultimately reduce the Compton continuum in gamma energy spectra. In this detector, CsI(Tl) crystal is used to primarily detect photoelectric events. The CsI(Tl)...
There are two problems with current cylindrical projections for world maps. First, existing cylindrical map projections have a static height-to-width aspect ratio and do not automatically adjust their aspect ratio in order to optimally use available canvas space. Second, many of the commonly used cylindrical compromise projections show areas and...
This study had two purposes: to determine solid waste management needs of residents and organizations of the San Xavier District Indian reservation near Tucson, Arizona; and to develop a solid waste management plan to be recommended to the San Xavier District Tribal Council.
A solid waste generation study compared the...
The performance of transit networks must be measured on a regular basis to understand how well these complex systems fulfill their intended purpose and to identify potential opportunities for improvement. Measuring transit network performance is only achievable by defining a specific set of transit network performance indicators (TNPIs). Different schemes...
Previous research has shown that using fine lightweight aggregate (FLWA) can be a promising strategy to mitigate alkali-silica reaction (ASR) in mortar and concrete. While several possible theories were proposed by researchers, discrepancies in testing methods, materials, and supporting evidence still exist. Therefore, this study was initiated. There are two...
Retention of engineering students is a problem for many universities, especially during the first year. The problem of introducing students to engineering while increasing retention rates has recently been addressed by many different universities. Implementing novel lab structures, adjusting the lecture to incorporate more effective teaching techniques, and using orientation...
During the end of a pet’s life its owner is often in emotional turmoil over how to feel and what to do. A veterinarian can alleviate some of this grief by effectively communicating during a terminal diagnosis and end-of-life discussion. Effective communication includes acknowledging the unique human-animal bond between client...
The range of different nonvolatile constituents extracted from hops in highly hopped beers suggests that iso-alpha acids may not be the sole contributor to beers’ bitterness. Among brewers producing hop-forward beer styles there is a growing concern that the Bitterness Unit (BU) is no longer an accurate predictor of beer...
In the highly competitive animal protein market, seafood faces increasing pressure to improve and standardize product quality. While there is general consensus that quality can be improved for many seafood products, there is little agreement on the types and levels of characteristics that should define "quality." This is a fundamental...
While the d⁰ transition-metal POMs of Group V (V⁵⁺, Nb⁵⁺, Ta⁵⁺) and Group VI (Mo⁶⁺, W⁶⁺) have been known for more than a century, the actinyl peroxide POMs, specifically those built of uranyl triperoxide or uranyl dihydroxidediperoxide polyhedra, were only realized within the last decade. While virtually every metal on...
The Columbia Basin once supported a diversity of native fishes and large runs of anadromous salmonids that sustained substantial fisheries and cultural values. Extensive land conversion, watershed disruptions, and subsequent fishery declines have led to one of the most ambitious restoration programs in the world. Progress has been made, but...
The National Collegiate Athletic Association (NCAA) is the governing body for collegiate athletics and has regulated the activity of student-athletes with the primary goal of preserving amateurism. In recent years, the restrictions of this principle have been challenged in court. The Supreme Court case NCAA v. Alston (2021) challenged the...
In vitro tests showed mycelial growth of Pyrenochaeta
terrestris was inhibited by root and bulb extracts from the pink root
resistant onion cultivar Nebuka, but not by extracts from the susceptible
Southport White Globe. The active principle was shown to be
fungistatic rather than fungicidal. It is present in both...
A computer program called SAPWOOD which possesses the
capability of performing linear or nonlinear, static or
dynamic response including seismic excitation for wood-framed
buildings with semirigid connection systems is
presented in this study. Program SAPWOOD is a modification
of the program NONSAP by adding new elements such as a
linkage...
Changes occurring in our society affect the food service industry
and cause a growing demand for trained food service workers.
This has stimulated the need for vocational training programs at
many levels. The federal government has recognized this need and
provided funds for establishing and carrying out certain vocational
training....
Cloud reflectivity is a function of cloud liquid water content and droplet number concentration. Since cloud droplets form around pre-existing aerosol particles, cloud droplet number concentration depends on the availability of particles that can serve as cloud condensation nuclei. Given constant liquid water amount, increased availability of cloud condensation nuclei...
The use of double-diffused n-type MOS transistor
(DN-MOS) in a complementary MOS random-access-memory (CMOS
RAM) cell is the main objective of this investigation.
DN-MOS transistors and conventional p-channel MOS
transistors on the same chip have been successfully fabricated.
Process sequence effects on device threshold voltage
and channel length are discussed....
This thesis describes a syntax-directed compiler-compiler
called COMCOM which has been implemented by the author on the CDC
3300 under the OS-3 operating system. The theory and terminology
of the parsing method and compiler-compilers in general are briefly
discussed. COMCOM uses Floyd's operator precedence bottom-up
parsing technique which avoids backup...
Current meters, moored during JOINT-I in the coastal upwelling area off Northwest Africa along 21°40'N measured current speed and direction, temperature and, in some cases, conductivity and pressure. In addition, surface buoy meterological stations were installed at some current meter strings to record wind speed and direction, as well as...
Aanderaa recording current meters, moored off the Oregon coast at fixed depths measured water temperature, current speed, current direction and for some meters, conductivity and pressure. In addition to these subsurface meters, surface meteorological buoys were installed to measure wind speed, wind direction, air and water temperature. Data from each...
Self-recording instruments were installed in the Drake Passage in February 1975. Approximately one-half were part of a short-term array (3 + weeks) and were all successfully recovered in March 1975. The remainder are part of the long-term array which was recovered in January 1976.
The short-term array consisted of 2...
Aanderaa recording current meters, moored in CUE-I off the Oregon coast at specific depths along both the Newport hydrographic line and perpendicular to the isobaths off Depoe Bay, were set to measure water temperature, current speed, current direction and, in some cases, pressure. In addition, surface buoy meteorological stations were...
Internally recording instruments were installed in the Drake Passage in January 1979 and recovered in January 1980. Additional instruments were installed at this time for the first experiment in the Pilot Ocean Monitoring Experiment. These are to be recovered in March of 1981. The array consisted of seventy current meters...
Internally recording instruments were installed in the Drake Passage in January 1979 and recovered in January 1980. Additional instruments were installed at this time for the first experiment in the Pilot Ocean Monitoring Experiment. These are to be recovered in March of 1981. The array consisted of seventy current meters...
Observations were made southeast of New Zealand from April 1978 to May 1980 with the objectives of investigating the dynamics of low-frequency motions and their effects on the Antarctic Circumpolar Current; and the formation of subantarctic mode water on Campbell Plateau. Self-recording instruments were deployed during a 7-month period from...
Oregon State University installed and recovered moorings along the coast of Peru during the period late March 1976 through mid-May 1977. A mid-shelf mooring near 15°S (MILA)
was maintained for the full duration of the experiment, through five successive installations. This site was complemented by six other moorings in the...
Internally recording instruments were installed in the Drake Passage in January 1977 and recovered in December 1977. Additional instruments were installed at this time and recovered in January 1979. The first array consisted of 21 Aanderaa current meters on five moorings. The second array was one mooring with three current...
Self-recording instruments were installed in Drake
Passage in February 1976 and recovered in January 1977.
The instrument array consisted of eleven Aanderaa current
meters on seven moorings and two tide gauges. The data
were sampled at one hour intervals.
In this report the measurements are summarized through
pertinent statistics, progressive...
Self-recording instruments were installed in the Drake Passage in February 1975. Approximately one-half were part of a short-term array. Data from these short-term instruments are described in Pillsbury, Bottero and Still (1976). This report is complementary to Report 65 and describes the data from the long-term array.
The long-term array...
Observations from an instrument array moored over the continental
shelf off Oregon from 31 July to 21 September 1969 are presented. Temperature,
current and wind observations were obtained every 20 minutes.
First order statistics, histograms, progressive vector diagrams and time
series plots are presented. Supplementary wind observations at Newport
are...
A summary of one phase of a direct observational program conducted
in the coastal region off Oregon is presented. The measurements
were made primarily on the continental shelf during most of the coastal
upwelling season (May and June 1967; April through September 1968).
The principal measurements were time series of...
This is the first data report of a program designed to study physical
processes in Oregon shelf waters by means of moored instrument arrays.
Various statistics and plots of smoothed data are presented for time
series of current velocity and of temperature. Data were collected in
July, August, September, and...
A summary of one phase of a direct observational program conducted
in the coastal region off Oregon is presented. The measurements were
made primarily on the continental shelf in late coastal upwelling season
(August and September 1966). The principal measurements were time
series of horizontal current velocity and temperature fields;...
A summary of the observations taken from moored stations and hydrographic surveys in POLYMODE Array III Cluster C is presented. Currents and water temperatures were measured at various depths, including: 150, 225, 300, 500, 750, 1500, 2500, and 4000 meters.
Hydrographic surveys were made during the deployment and recovery cruises....
A summary of moored instrument measurements over the continental
shelf of Peru is presented. Measurements of variables were made in an
upwelling zone between Pisco and San Juan, from 28 March to 9 April, 1969.
Time series of temperature and horizontal current and wind velocities were
obtained at several depths...
This publication consists of reports of projects carried out by
students in the Marine Resource Management Program in the School of
Oceanography at Oregon State University. These studies, sponsored by
the OSU Sea Grant Program and the School of Oceanography, were carried
out during the period 1974 to 1980. The...
The purpose of this study was to determine if differences exist among NCAA
divisions I, II and III as well as between Athletic Directors and Primary Women Administrators
with regard to the perceived competencies and preparatory coursework required
of athletic administrators.
A mail survey utilizing a six point forced choice...
During February, March and April 1974, the interdisciplinary Coastal
Upwelling Ecosystems Analysis experiment known as JOINT-I took place over
the continental shelf and slope near Cabo Corveiro in the NW African upwelling
region. As part of the field program, Oregon State University
made a series of repeated hydrographic surveys from...
The primary purpose of this study was to determine the work values of the emotionally disturbed adolescents and to compare these values with those indicated by adolescents
of the same age level from a regular public school. A secondary objective was to compare the work values of the age levels,...
In 1968, a study conducted by the sanitarians of the State Health Division and Benton County Health Department revealed a high failure rate of on-site sewage disposal systems in Southwest Corvallis. The survey team concluded that sewage disposal in this area was inadequate, and a significant health hazard existed due...
The study compares the differences in verbal responses between
39 Anglo-resident and 32 Anglo-migrant children in the first grade in
selected school districts in Oregon.
The children were tested for I. Q. using the Goodenough Draw-
A-Man test. They were grouped for comparison purposes by age,
sex, and by migrancy...
Sod-seeding techniques offer graziers a convenient way to introduce superior grass cultivars into underproductive permanent pastures. Production loss and erosion are minimized. In conjunction with improved grazing management and fertilization, renovation can significantly improve yield and quality of pastures. Existent vegetation must be suppressed prior to introducing new cultivars. This...
A comparison of two novel demodulators. The first is a basic zero crossing demodulator,
as introduced by Beards. The second is an approach proposed by Hovin. The two demodulators
are compared to each other and to the conventional method of demodulation.
The purpose of this research was to evaluate the
effectiveness of two smoking cessation programs -- one
group and one self-help -- which were developed and are
currently employed by the American Cancer Society.
The research was conducted in a work setting, and
all subjects were employees of the State...
This study compared two self-instructional methods for
improving spelling in high school and college: a traditional-deductive presentation of spelling rules and lists of words to exemplify
each rule versus a programed-inductive presentation leading
the learner to observe the spelling behavior of words and to make
generalizations.
Both the traditional-deductive and...
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...
Objectives: To compare the neuropsychological concussion assessment testing
batteries of the Standardized Assessment of Concussion (SAC™) test and the
Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT™) test
and determine if the tests measure similar neuropsychological functions as well as
determine the test-retest reliability of the pre and post season measures...
Responses to two cycles of mass selection for heading date,
followed by selfing or intermating, were studied in two diverse
winter wheat (Triticum aestivum L. em. Thell) crosses. Selection
was bidirectional, resulting in early and late populations for
each mating system, cycle, and cross. The influence of mass
selection for...