Published January 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
This investigation was a trial to check the possibility of developing a frozen blackberry puree dessert. A blend of different varieties and selections of blackberries, as it may be expected in commercial production was preferred to provide the fruit-puree-mix.
Several stabilizers bearing different commercial names were added to the fruit...
The small size of the average plywood mill, and the wide spread of markets, has fostered the growth of independent wholesalers, or jobbers, as the main distribution channel for softwood plywood. Jobbers buy directly from mills, or indirectly through sales agents representing mills, and in turn sell to retail outlets....
Drainage may be defined as the science or directing the removal of excess surface and ground water in such a manner as to safeguard the best interests of all concerned. Its ultimate objective in roads is the prevention of damage or failure of the road surface and subgrade by the...
Certain chlorinated insecticides can be identified by electron capture gas-liquid chromatographic (EC-GLC) analysis of the prepared sample before and after treatment with ultraviolet irradiation, Upon U.V. treatment, characteristic degradation products arise from the insecticides investigated. Comparison of the degradation pattern obtained by EC-GLC of unknown and authentic insecticides provides an...
The Upper Napa Valley land use system is presently
agricultural and epitomized by vineyards of quality wine grapes. As
the San Francisco Bay Urban Area continues to expand the Upper
Napa Valley is brought into closer proximity to the urban margin,
and its agricultural usefulness is being threatened. Whether the...
In intensive forest management, one important objective is maximum return on capital invested, or more generally, the most complete utilization of any site as is possible, financially and/or
biologically. One parameter associated with a forest stand, density, is a measure of biological utilization of the site and may be subjected...
The purpose of this paper is to present a cursory review of the theory and principles of point sampling, and to offer some practical proposals on the possibility of its introduction to the forest of Liberia.
An index suitable for measurement of the
diversity of agricultural land use is developed. This
index is based on a principle of measuring the deviation
of a distribution from an even distribution and is similar
to indexes employed to measure diversity in manufacturing
The index is applied to the thirty-six...
Township 40 South, Range 14 1/2 East, within the Klamath Basin in south central Oregon has been chosen for analysis in reconstructing vegetation. Both the present and the pre-settlement vegetative cover are depicted on maps, and the methods and sources utilized to reconstruct pre-settlement vegetation are reviewed. The term "pre-settlement"...
Studies involving freeze-dried methyl linolenate-gelatin foams indicate that the extent of lipid-protein interaction corresponds to the degree of autoxidation of the lipid fraction. It appears that approximately 11% of the malonaldehyde as defined by the 2-thiobarbituric acid test is firmly bound to the protein. The induction period of autoxidation is...
Seven species of microorganisms indigenous to fish were inoculated into sterile fish muscle, obtained from Sebastodes alutus and Sebastalobus alascanus, and the production of total volatile acids (TVA) and total volatile bases (TVB) was determined during storage at 1 C. No production of TVA and TVB was noted in sterile...
Pesticide chemists have recognized since the 1940's that ultraviolet light was deleterious to the insecticidal properties of certain compounds. However, it has been only within the last 15 years that a number of photodecomposition products of the chlorinated hydrocarbon
insecticides have been isolated and identified. The degradation of insecticides by...
The Corvallis "urban area" has been selected for the
research problem at hand. Primary concern lies with forecasting
a 1985 arrangement of single-family residences. A model is developed
to simulate the 1968-1985 process of residential expansion outside
of the present city limits. Results of the simulation are summarized
both numerically...
A threshold pattern for the even-numbered free fatty acids (FFA) in butter depended on chain-length. Butyric acid had the lowest total average flavor threshold (AFT) of the more volatile FFA, and the total AFT values increased as chain-length increased through hexanoic and octanoic acids. A soapy after-taste predominated at and...
Thermal oxidation of methyl oleate was studied over a range of temperatures from 50 C to 150 C for periods of time up to 30 min. Degradation was quantitatively followed by gas liquid chromatography (GLC) and liquid scintillation counting of the products of methyl oleate-U-14C heated under a stream of...
Dimethyl sulfide, acetaldehyde, isobutyraldehyde, furan, 2-furaldehyde, 2-acetyl furan, and ethyl furoate were produced when pureed strawberries were heated to 120° C. for 30 minutes. Shorter heating periods were sufficient to produce the first three compounds. With the exception of acetaldehyde, none of the heat-induced compounds were detected in unheated, pureed...
It is the purpose of this paper to review the literature on computer simulation in forest management, and to present the adaptation of a stand model to Douglas fir as part of the development of a forest management simulation model.
Moisture has long been identified as one of the major
limiting factors in the distribution of agricultural land use practices.
However, the importance of any environmental element can only be
determined by considering how it is affected by its relationship with
other elements of the environment. Thornthwaite's moisture index
attempts...
Recreational resources of the Owyhee Breaks
Recreation Area are almost all of the extensive type such
as sightseeing, hunting, pleasure boating and rockhounding.
However, because of the increasing use both
past and projected, it is imperative that facilities be developed
to make these areas more useable and more enjoyable
to...
This research is an effort to appraise the results of the 1963
legislation, especially in terms of the spatial aspect. Has it achieved
the desired purpose? How many, and what size of farms are involved?
Where are these farms located?
The research field work resulted in a definitive map showing...
Re searchers have long tried to correlate weather factors with plant disease occurrences. However, inconclusive results have usually been obtained because most plant diseases have biologic as well as climatic optimums.
In this study, thirty weather variables were correlated, by the stepwise regression method in a computer, to the amount...
At the time of the inception of this study in September 1968, the plywood market appeared to be taking a strong reversal of its general trend over the last 20 odd years. This prompted the author to decide to study the plywood market and its pricing structure to see if...
Eighty-one microbial species isolated from seafoods and other marine sources were examined to determine the extent of interactions among these species. Spot-plates, cross-plates, and concurrent growth experiments at 7, 15, 20, and 30 C indicated that Lactobacillus species were capable of inhibiting other microorganisms. Lactobacillus species isolated from oysters and...
This report deals with forestry in Korea in its various aspects and what has been done about forestry problems in Korea.
The ratio of forest land to total area of country is so high
that it is sometimes compared to Finland's, but the similarity with Finland stops there.
The adverse...
Seven one-square-mile areas were selected to test the notion
that there is a general intensification of agriculture as farm land
becomes more valuable. The Tualatin Valley adjacent to a large expanding
population center was selected because the land values in this
valley are increasing faster than are those of average...
An attempt is made to determine whether
or not property value appreciation on land adjacent to an
expanding urban center is related to distance from the
city and to identify the temporal variation in this relationship.
The results of simple linear regression strongly
suggest that property value appreciation and distance...
The relationships between infant mortality
and four socio-economic factors were determined for
the United States using visual comparisons of isopleth
maps and linear regression analysis. The four socioeconomic factors were per capita income, the percent of the population that is Negro, the per cent of the population that has a...
Potentially large savings can be realized within the forest industry by improved machine scheduling, labour scheduling, machine investment, inventory management, and the maximization of wood value. Forecasting must change within the forest industry from Ttguesstimatesll to more efficient production forecasting models. Much work needs to be done with data collection...
Since the mid-1950's, when Western Kraft Corporation
began operation of a pulp and paper processing plant north of Albany,
Oregon, inhabitants of the Albany area have faced an air pollution
nuisance.
This study is an attempt to add empirical substance to the complaint
that air pollution reduces land values. The...
Few Americans are aware of the tremendous
recreation potentials along the banks of the Intracoastal
Waterway, mainly because they are unaware of
the existence and extent of the toll-free Waterway.
This study attempts to categorize and locate some of
the attractions that can be explored along the two
thousand miles...
This paper reviews techniques that have been used to estimate bark growth, upper stem bark thickness, and bark volume. Two new equation forms have been developed and tested for estimating upper stem bark thickness using,as an example, data from Sitka spruce (Picea
Sitchensis (Bong.) Carr.) in southeast Alaska.
Until recently, manufacturing in
the Portland Metropolitan Area was highly
concentrated in the central city, with little
industrial activity in the periphery of the
urban area except for primary processing of
timber and agricultural resources. However,
in recent years, especially within the last
decade, industrial activity has spilled well
beyond...
Forest technician education at the community college is
an important segment of the forestry profession (United States
Department of Health, Education, and Welfare, 1968).
Objective
The objective of this survey is to investigate the forest
technology curricula at Oregon's community colleges. The question
of what subjects should be incorporated into...
The objective of this study is to determine the past, present, and future demand for forest technician graduates in the forestry profession. Literature reviews, questionnaires, and personal interviews with forest technician instructors were utilized to accomplish the objective.
Lane County, Oregon recognized a needs for the protection of gravel producing land in the county a few years ago. This need for protection was first observed by a few sand and gravel owners and then by the Lane County Board of Commissioners. These two interests met and discussed various...
Coal was discovered in southwestern Washington over
One hundred years ago but until recently was of only minor
local importance. From the peak production year, in which
less than one-third of a million tons of coal were mined,
until the late 1960's, the coal production of the area degenerated
to...
The rapid population growth and related economic
growth of the Willamette Valley has resulted in a significant
reduction in air quality over the past several decades.
Within the Willamette Valley air ventilation is very poor and
therefore the airpo1lutton potential is one of the highest
in the United States. There...
This research paper is an analysis of the electric energy industry
in Mexico since its inception in 1879. The research is based entirely
on library sources plus documents secured from the Federal Electricity
Commission of Mexico. Only minimal documentary evidence is
available in English, consequently the Oregon State University library...
The material in this paper is divided into the following four chapters for convenience. Chapter 1 explains, how the idea of fault testing changed from testing the machine instructions to testing the hardware in logic circuits. Chapters 2, 3 and 4 present the different approaches considered, namely:
1. Path sensitizing...
The purpose of this paper is to discuss some of the theory of Boolean matrices and apply this theory to construct contact networks by using algebraic methods.
The first section of this paper (Chapter I to III) describes Boolean algebra and its properties, the theory of Boolean matrices, and the...
The Willamette Valley in Oregon produces over
90% of the Highland bentgrass seed produced in the United
States. Approximately two-thirds of this production comes
from a well-defined area on the eastern edge of the Waldo
Hills, east of Salem. This concentration seems to be
related to a set of physical...
Land management techniques are numerous and well known, but knowledge of where and how to use these techniques is often inadequate. Silvicultural methods used by foresters in the Pacific Northwest exemplifies this quandary. Silviculture largely consists of applying standard techniques to various forest stands. Classical silvicultural techniques are not universally...
The period between 1971 and 1992 will mark the transformation
of the region' s hydro based electrical system into one
dependent on a mix of hydro and thermal generation. Through a
review and compilation of current literature it has been determined
that the program ushering in thermal generation is really...
The objective of this paper is to evaluate the
current development of the Willamette River Park and.
Recreation System, and to investigate the opposition to
that development.
The first section deals with a history of the project.
The phases of development are explained in detail. The
second section is an...