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
Phytochemicals from cruciferous vegetables, such as broccoli, contain a multitude of bioactive compounds that prevent and suppress cancer and promote optimal health. Some of the health promoting effects of cruciferous vegetables are attributed to a class of compounds known as isothiocyanates (ITCs), a potent nuclear factor erythroid 2–related factor 2...
A utilitarian approach, “greatest good for the greatest number”, in higher education has been common practice for a very long time (Alexander, 2000). This approach, while effective for many, is incomplete when exploring solutions to shifting demographics and larger achievement gaps based on these factors. Customized educational programming and less...
The dataset was generated as part of a study conducted by Oregon State University (OSU) and funded by the Oregon Department of Transportation (ODOT). The study, titled "Use of Blue Lights on Paving Equipment in Work Zones," was conducted from June to December 2018. The dataset includes vehicle speed and...
Equatorward velocities in the upwelling jet of the northern California Current were 0.05–0.06 m s¯¹ faster in spring and summer 2002 than on average over 1998–2002. This result is based on a five-year data set of surface drifters released across the continental margin off central Oregon (44.65°N) during April and...
This report summarizes vegetation data collected in July 2015 in wet meadow and marshy habitats on the Double O Unit of Malheur National Wildlife Refuge (MNWR). Because vegetation sampled at the Double O was wetter and more alkaline than wet meadows sampled at the south end of the refuge in...
In September 2014, the Metro Natural Area Program engaged The Wetland Conservancy to develop a scientific assessment of Metro’s 590-acre Killin Wetlands Natural Area. Metro acquired the lands comprising the KWNA between 2000 and 2012 with funds from two voter approved open space bond measures. Since 2000, Metro has sought...
A material point method simulation of orthogonal cutting that can simulate cutting into steady-state chip curling is described. The modeling used ductile fracture mechanics using cohesive zone in the cutting path. Robust simulations required a new mechanism to damp kinetic energy artifacts associated with dynamic crack propagation. The simulations displayed...
Oregon Natural Heritage Information Center Report.
Sphagnum fens on the coast of Oregon are unique globally and contain a variety of rare plants and animals found nowhere else in the landscape. Evidence indicates that in the absence of disturbance, many open fens have converted to tall shrub and forest stands...
A new pulse method for measuring differential double layer
capacitances has been developed in this work. The technique is based
on the determination of the cell time constant which, for an ideally
polarized test electrode-solution interface, is composed of the double
layer capacitance and solution resistance. By applying small step...
The Philpott site (35CS1) is located on the north bank of the
Coquille River near Bandon, Oregon. Test excavations at the site were
conducted in 1978 by Oregon State University under the direction of
Richard E. Ross.
One artifact assemblage and one distinct component were defined
during the analysis of...
Finite element analysis was used to study the effective transverse modulus of solid wood for all possible end-grain patterns. The calculations accounted for cylindrical anisotropy of wood within rectangular specimens and explicitly modeled wood as a composite of earlywood and latewood. The effective modulus was significantly reduced by growth ring...
Illinois coal ground to 80-200 mesh was leached
with a low phosphate, high nitrogen medium containing a
mixture of Thiobacillus ferrooxidans and thiooxidans in a
fluidized bed. Coal slurries of 20-160 g/L were treated
in a 5 cm ID, 9.5 m high continuous loop bioreactor with
crossovers at top and...
Conversion of software written for one machine or
operating system to equivalent software for another machine
or operating system is shown to be economically attractive
using source-to-source translation. The features of an
automatic converter are described using a Pascal-to-C
translater as an example. Solutions to the problems of
denesting procedures,...
Report by Portland State University's Oregon Biodiversity Information Center (ORBIC), part of the Oregon University System's Institute for Natural Resources.
In 2011, USFS requested the services of Portland State University's Oregon Biodiversity Information Center (ORBIC) to update its assessment of rare plant associations that occur on coastal sand dunes. The study area in this report includes dune habitats on the Siuslaw National Forest's Oregon Dunes National Recreation Area (NRA), the...
The data used for the construction of genome maps is imperfect, therefore the mapping of a physically linear structure must take place in a very uneven feature space. As the number of genes to be ordered grows, it appears to be impractical to use exhaustive search techniques to find the...
A new approach was developed for the evaluation of energy release rate by the virtual crack closure technique in quadratic and linear elements. The generalized method allows arbitrary placement of the side nodes for quadratic elements and thus includes both standard elements, with mid-side nodes, and singularity elements, with quarter-point...
Ranching and lumbering were two of the primary economic practices in a
small rural study area south of Philomath Oregon (in Benton County), from
first Euro-American settlement through 1930. Ranching was common but
lumbering was restricted by geographical and market transportation
problems until after 1900. Catalysts for change came in...
The Salem and Eugene-Springfield Urban Areas are faced with the
task of managing the flood plain lands which lie near them. In
the past, flood plain usage was not regulated and many dollars worth
of damage has occurred to land and structures. This type of thinking
is now changing, and...
The wood-based building products industry has experienced significant turbulence over the past several decades as a function of multiple forces including among others globalization, product and process innovation, and shifting customer and consumer interest and demands. Collectively, these changes have challenged the historical tenets which have defined industry strategy and...
Centrifugal irrigation pumps discharge fluids at high velocities that must be slowed
to minimize energy losses due to friction. Pipe expansions make the transition to larger
pipes associated with slower velocities. Expansions convert the upstream velocity head
to static head in the downstream pipe. The transition to a larger pipe...
A nonlinear wave equation is developed, modeling the evolution in time of shallow water waves over a variable topography. As the usual assumptions of a perfect fluid and an irrotational flow are not made, the resulting model equation is dissipative due to the presence of a viscous boundary layer at...
The stability of a coastal jet and front is investigated using the primitive
equations applied to a continuously stratified flow in geostrophic balance. A linear
stability analysis successfully explains the growth of two modes of instability with
distinctly different horizontal scales. A long-wavelength mode (fastest-growing
wavelength of 0(100 km)) is...
A review is made of methods which assess the bias
and non-normality of parameter estimates and predictions
obtained with nonlinear regression. Particular emphasis
is placed upon curvature measures of nonlinearity,
related measures of parameter and prediction bias, and
the effects of reparameterizations. Alternate models of
individual tree height growth are...
Published June 1966. 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
Published May 1946. 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
The amount of instruction level parallelism (ILP) that can be exploited depends
greatly on the size of the instruction window and the number of in-flight instructions
the processor can support. However, this requires a register file with a large set of
physical registers for renaming and multiple ports to provide...
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
The history, current condition, and options for restoration at Metro's Killin Wetland were outlined recently by Christy (see citation information below). As part of the site evaluation, Metro requested an inventory of Killin Wetland, which is presented here with information on other miscellaneous features observed that may be of interest...
Connectivity and larval dispersal is explored off the Oregon coast during the summer upwelling season of 2001 using numerical ocean circulation simulations. The study region, with strong wind-driven currents and variable topography, is modeled using the Regional Ocean Modeling System (ROMS) forced by the Coupled Ocean Atmosphere Mesoscale Prediction System....
Drifters released offshore of Oregon during predominantly downwelling favorable alongshore winds during three different deployments (October 1994, January 1998, and September 1998) display similar behavior: after being advected around in the offshore eddy field, they move onshore to a particular isobath and are advected poleward alongshore, without coming ashore. Numerical...
As part of an experiment to study wind-driven coastal circulation, 17 hydrographic
surveys of the middle to inner shelf region off the coast of Newport, OR (44.65°N, from
roughly the 90 m isobath to the 10 m isobath) were performed during Summer 1999
with a small, towed, undulating vehicle. The...
The Coastal Ocean Advances in Shelf Transport (COAST) program conducted an
interdisciplinary study of coastal upwelling off central Oregon during summer 2001.
Two intensive field efforts during May–June and August 2001 were coordinated with
ocean circulation, ecosystem, and atmospheric modeling of the region. A primary
goal was to contrast the...
Most irrigation water in Oregon is of excellent quality. Occasionally a deep well yields water that is too salty for irrigation, or contains constituents that are detrimental to plants or soils. Water can be of poor quality for irrigation because of the amount of impurity (salt) it contains or the...
Submarine hydrothermal systems provide all of the
conditions necessary for the abiotic synthesis of organic
compounds, polymers, and simple cell-like organisms. An
analysis of the Archaean rock and fossil record shows that
fossils of simple organisms are found in rocks deposited in hydrothermal environments. Biochemical experiments have
shown that thermal...