The purpose of this research is to study the
feasibility of combining reaction and separation in a
membrane separation unit. The asymmetric ceramic membrane
reactor applied to the gas-phase catalytic decomposition
reaction of ammonia from an IGCC (Integrated Gasification
Combined Cycle Processes) gas mixture was simulated in the
temperature range...
Learning easily understandable decision rules from examples is one of the classic problems in machine learning. Most learning algorithms for this problem employ some variation of a greedy separate-and-conquer algorithm. In this paper, we describe a system called LERILS that learns highly accurate and comprehensible rules from examples using a...
Extensive use of wilderness campsites has caused resource deterioration in numerous backcountry locations. Resource managers are responsible for maintaining natural wilderness-like conditions in these areas and providing opportunities for the public to use and enjoy them. This requires that realistic standards for resource impacts be determined and that publicly supported...
Remote Event Listener(REL) is designed to glue remote events and remote listeners dynamically, and dispatch remote events efficiently and transparently
for distributed object-oriented systems. Components can be independently developed and remotely interconnected with REL, and software reusability can
be improved. Remote Event Listener along with Remote Method Invocation
makes distributed...
The visual programming language Forms/3 currently uses a graphical user interface implemented in Garnet. Garnet was developed by the User Interface Software Group in the Human Computer Interaction Institute at Carnegie Mellon University, but is no longer supported. This paper presents an implementation of a user interface for Forms/3 written...
This paper describes the design and performance of a distributed, multi-tier architecture for scientific information management and data exploration. A novel aspect of this framework is its integration of Java IDL, the CORBA distributed object computing middleware with JavaBeans, the Java Component model to provide a flexible, interactive framework for...
Although standard tools have been used for lexical and syntactic analysis since the late 1970's, no
standard tools exist for the remaining parts of a compiler. Part of the reason for this de ciency is due to
the di culty of producing elegant tools capable of handling the large amount...
Programming parallel machines has been a difficult and unrewarding task. The short lifespan of parallel machines and their incompatibility have made it difficult to utilize them. Our goal here is to create an environment for parallel computing which allows users to take advantage of parallel computers without writing parallel programs....
This thesis presents a case study of applying machine learning tools to build a predictive
model of annual infestations of grasshoppers in Eastern Oregon. The purpose of the
study was two-fold. First, we wanted to develop a predictive model. Second, we wanted
to explore the capabilities of existing machine learning...
This study was undertaken to evaluate the spatial and temporal characteristics
of riparian groundwater tables adjacent to beaver ponds. The research was
conducted in two parts; in the first portion a two-dimensional, finite-difference
computer model was developed and utilized to simulate groundwater elevations
through time in pond-adjacent aquifers. Two types...
The City of Salem, Oregon has an active sewer main chemical grouting
program for the control of groundwater infiltration into the sewer collection
system. The effectiveness of this chemical grouting program is evaluated
by a comparison to other effective chemical grouting programs for control
of inflow/infiltration (I/I). The importance of...
Western society's ongoing cultural shift toward quality of life values and associated increased public participation expectations affects forest managers. The rapid urban growth experienced by the U.S. is increasing both the area of the urban-forest interface zone and the number of residents residing in that zone. The study site of...
The forests of the Oregon Coast Range have been both the principal
natural resource, and for many years, the primary economic base of the region. In the past thirty years, changing social and economic factors have created new visions for these forests, leading to conflict over the appropriate management of...
Fish assemblage structure was determined along a longitudinal
gradient for three drainages in the upper John Day basin: Middle
Fork, South Fork, and upper Mainstem proper. One or two tributaries
in each drainage were included. Where possible, sites were paired:
those with good versus those with poor riparian habitat. Detrended...
This study examined the relationship between self-esteem and student involvement among American college sophomore women. Self-esteem is defined as "a positive or negative attitude toward the self" (Rosenberg, 1989, xxviii). Student involvement is defined as the amount of time a student spends actively involved in various activities in college (Astin,...
The increasing popularity of catalog shopping has prompted many retailers to enter the market. Consequently, competition among catalog retailers has escalated. To maintain or expand their customer bases, catalog retailers must now find better ways to serve consumers. Many consumers are apprehensive to shop for apparel via catalog because they...
Trees that survive disturbances can form a prominent legacy which may influence
post-disturbance successional pathways. The effects of biological legacies on community
dynamics is a critical question in ecology. In the present study, I examined two mapped
stands in which old-growth remnant trees, survivors of partial fires, emerge above a...
New research has identified flavonols as a class of phenolic compounds which can be manipulated by both vineyard and winery practices. These phenolic compounds are key quality components of wine, affecting sensory characteristics, wine color, and wine stability. Modification of the phenolic precursors in grapes occur during fermentation and aging...
Solid phases that form under the influence of changing environmental conditions often record such changes in their chemical composition. Quantification of these compositional variations is invaluable in reconstructing paleoenvironmental changes. Laser ablation, employed as a solid sample introduction system, offers fine spatial resolution (50 - 250 [mu]m) for spectroscopic analysis...
At least 105% nearly east-west extension of late Cenozoic age has been accommodated by down-to-the-east normal and oblique-slip faults in the central Wassuk Range. One northwest striking, right-lateral strike-slip fault probably contributes an additional component of WNW-ESE slip. Movement on the normal and oblique-slip faults in this area tilt the...
Recently, fiber-reinforced plastics (FRP lamina) have
been applied to glued-laminated (glulam) timber for the
purpose of improving bending strength and stiffness.
Initially, full length reinforcement using FRP lamina was
developed. However, the cost of FRP lamina is a significant
portion of the total cost of reinforced glulam. Therefore,
it is...
The early to middle Eocene submarine basalts of the Crescent Formation form the
core and basement of the structurally uplifted Willapa Hills region of southwest
Washington. The formation consists of a thick sequence of predominantly subalkaline,
tholeiitic pillow basalts and breccias formed as oceanic crust and seamounts at a sea...
I classified the environment of the Klamath Mountains region into physical habitat types using climate and soil variables and a geographic information system (GIS). I used principal components analysis to find four variables representing most regional climate variation: average annual precipitation, the difference between December and July precipitation, average annual...
Human activities may contribute to the eutrophication of surface waters by
providing nutrients to aquatic ecosystems. Phosphorus is frequently identified as a
nutrient that is limiting to most aquatic ecosystems under natural conditions. Sources of
phosphorus contributing to eutrophic conditions often include nonpoint sources that are
dispersed across the landscape....
Management restrictions are simulated on streamside acres owned by private interests in western Oregon to assess forest inventory and log market implications. A dynamic, nonlinear optimization model of western Oregon's softwood log market simulates the resource and economic impacts of set-aside and minimum harvest age restrictions on forest acreage within...
Water quality problems related to excessive algal
growth, high nutrient loading, and low flows have been
occurring along Oregon's Tualatin River. The Tualatin River
is 86 miles long and has a drainage basin of 711 square
miles. The drainage basin incorporates forest,
agricultural, and urban areas. Located in the Portland...
A stand level model, PREscription generator under Multiple Objectives (PREMO) was built to generate prescriptions that address multiple objectives for management of the forests of the Applegate River Watershed. PREMO is a part of the landscape model of the Applegate River Watershed Forest Simulation Project and generates prescription choices for...
In the social context, distinct worldviews provide multiple, subjective, durable and conflicting views of natural resource situations. This research analyzes worldviews that shape people's perceptions, understandings and evaluations of forests and forestry in order to examine conflict associated with forestry issues. Differences in local residents' views of wildland fires and...
Reflecting an effort to broaden the scope of research concerning Mexican
migration, this thesis describes the experiences of monolingual Spanish-speaking
Mexican migrants in Corvallis, Oregon and explores the roles of language and culture
in shaping these migrants' experiences. Data were collected through intensive
participant observation and semi-structured interviews.
Migrants arrive...
This is a study of the representations of prostitutes and prostitution produced within a particular historical framework-regulationism. Drawing support from public health movements, campaigns against depopulation and degeneration and protest from feminists and socialists, the "French system" of regulation of prostitution occupied center stage in social debates from the mid-nineteenth...
In this study an analysis of the commercial fishery of the Loreto Region, with emphasis on the fishery fleet of Iquitos, Amazon Basin, Peru, is presented. There is evidence of a progressive replacement of large species by smaller, more productive and lower value species in the landing of the commercial...
High proteolytic activity Pacific whiting muscle causes hydrolysis of myofibrillar protein and lowers surimi gel quality. Although food grade proteinase inhibitors can be used to prevent autolytic activity in surimi, their usage is limited due to their adverse effects on the organoleptic quality of surimi. Cystatins however can be used...
This paper seeks to answer whether problems in intercultural communication
contribute to difficulties in wood products trade between the United States and Japan. It
summarizes the more commonly heard complaints about the current state of this trade
flow, including trade barriers and product specifications. It then offers a list of...
Surface-geology, oil-well, seismic-reflection, and magnetostratigraphic data are
integrated to evaluate structural style and shortening rate at the Himalayan front (Sub-Himalaya) of northwest India. The Sub-Himalaya, between the Main Boundary thrust
and the Himalayan Frontal fault, is the actively deforming front of the Himalaya. At
certain locations, the Himalayan Frontal fault...
Analysis of the long-term spatial pattern and dynamics of hardwood patches in the Coast Range of Oregon provides numerous ecological insights. Natural and anthropogenic disturbances have contributed to the development of a patchy mosaic of vegetation types in the area. Some hardwood patches in the Coast Range may be the...
Most soil organic C is in a stable form, associated with clay minerals in the upper soil profile. Upon environmental and land-use changes, stable soil C is subject to losses, which influence the global C cycle and the productivity of terrestrial ecosystems. However, mechanisms controlling soil C destabilization are not...
The Juniper Ridge volcanic complex is located in the High Lava Plains Province of
southeastern Oregon, a wide zone of bimodal volcanism and faulting that marks the northern
limit of widespread Basin and Range-style faulting in the northern Great Basin Province. Rhyolite
dome complexes are progressively younger to the northwest...
Eight cougars were radio-collared and monitored during 1985 - 1987. Home range size, determined by minimum convex polygons, averaged 153.1 km2 for females, 543.5 km2 for males. Core home range size, determined by harmonic mean analysis, averaged 21.7 km2 for females, 17.9 km2 for males. Home ranges of males and...
I studied the relationship of environmental variables
to six plant associations on McDonald and Paul M. Dunn
Forests. Indirect gradient analysis was used to determine
relationships. The plant associations were developed in a
companion study by C.J. Hubbard (1991).
McDonald-Dunn Forests are located north and northwest
of Corvallis, Oregon. The...
A guild of three and possibly five tip moths
(Rhyacionia spp.) occurs on ponderosa pine (Pinus ponderosa)
in southeastern Montana, northwestern South Dakota, and
southwestern North Dakota. Trapping results indicated that
many of these species may be flying simultaneously, and
individual species relative abundances showed west-to-east
trends.
Tip moth larvae...
The growth of western hemlock during the first four
years of seedling establishment was examined in a competitive
environment in which seedlings were exposed to various types
of animal damage and salmonberry and/or alder competition.
The study utilized an existing Nelder/replacement series
experiment which focused on the competitive effects among...
A sustainable resource development plan framework was prepared for the
Neskonlith Indian Band, who are located in the interior of British Columbia, Canada.
The framework intends to address issues involving; integrated resource management,
traditional native land management, ecosystem management, and community-based
resource management.
A soft systems (Wilson & Morren, 1990)...
Natural Douglas-fir stand development is the result of
many types of disturbance, both natural and management
induced. The magnitude and timing of these disturbances
have profound effects on the structure and composition of
both the overstory and understory plant communities. Vine
maple responds to disturbance by basal sprouting, layering,
producing...
Salmonberry community structure was examined in alder-dominated
riparian buffer strips in the Oregon Coast Range. Salmonberry growing on slopes
was found to respond differently, to both characteristics of the buffer strips and
to environmental factors, than salmonberry growing on terraces.
Salmonberry, as measured by total height, number of ramets or...
A field study was established to explore stand structure and development patterns of
mature, mixed-species forests in the Interior Cedar-Hemlock (ICH) zone: moist cold
subzone of northwestern British Columbia. The species of interest in the study area
were: western hemlock (Tsuga heterophylla (Raf.) Sarg.), western redcedar (Thuja
plicata Donn), lodgepole...
I used greenhouse and field studies to investigate how intraspecific and
interspecific competition, soil disturbance, and fertilization affect the biomass and
reproductive output of Senecio sylvaticus and Epilobium paniculatum, common winter
annuals which invade and dominate western Cascades forests during the first two seasons
after clearcutting and slashburning.
Field work...
Regeneration of salal (Gaultheria shallon Pursh.) in the
Coast Range of western Oregon was examined over two growing
seasons in a three part study consisting of seedling
establishment, clone excavation, and population sampling
experiments. The effects of study site location, overstory
stand density, and substrate on seedling emergence and
survival...
I studied species' abundances and habitat relationships
of breeding and winter birds in commercially thinned and
unthinned Douglas-fir (Pseudotsuga menziesii) stands from May
1989 to June 1991. The study was conducted in 40- to 55-year old
stands in the Central Oregon Coast Ranges and the
Tillamook State Forest. Total abundance...
Allochthonous litter inputs are a primary source of organic matter in low-order
forested streams. A major component of this litter moves through small streams as fine
particulate organic matter (FPOM). Litter decomposition has been well studied, but few
studies have examined benthic FPOM (FBOM) dynamics. The purpose of this study...
The coniferous forests of the Pacific Northwest are
affected by a variety of endemic fungal root pathogens. Forest
disease surveys have noted the presence of two or more of
these root pathogens infecting the same stump or root, and it
has been suggested that these fungi may be interacting
synergistically....
The purpose of this study was to develop a plant
association classification for the mature coniferous
forests of the McDonald and Paul M. Dunn Research Forests.
A secondary objective was to quantify diversity within the
plant associations. This Forest is approximately 11,000
acres and is located 6 miles to the...
The main objective of this study was to evaluate the interaction between
herbaceous competition, fertility, and seed source on Douglas-fir survival and
growth. A secondary objective was to evaluate the effect of these various factors
on the production of lammas shoots and the selectivity of deer browse. Finally,
the role...
Distribution and juvenile habitat use of bull trout (Salvelinus
confluentus) were surveyed in selected areas of the Upper Willamette,
Deschutes, upper Yakima, and upper Cedar River basins in Oregon and
Washington from 1989 to 1991, using day snorkeling, night snorkeling,
and electrofishing. These methods were selected after a preliminary
diel...
Cold hardiness and phenology are important adaptive
traits for perennial plant species in temperate climates.
Timing of growth, dormancy, and associated cold acclimation
and deacclimation represents a delicate balance between
maximizing growth under favorable conditions and minimizing
frost damage under unfavorable conditions. Geographic
patterns of genetic variation in adaptive traits,...
The purpose of this study was to assess how growth of young to mature Douglas-fir
(Pseudotsuga menziesii (Mirb.) Franco) and western hemlock (Tsuga heterophylla (Raf.) Sar.)
in mixed stands was influenced by the presence of residual trees. Fourteen paired plots with
and without residual trees were examined in a retrospective...
The effects of prescribed burning on the rates of recent litter
decomposition, nitrogen and phosphorus release from litter, soil total and
inorganic nitrogen pools, and net nitrogen mineralization were determined in
ponderosa pine sites that had been burned 0.3, 5 or 12 years earlier. Prescribed
burning decreased litter decomposition rates...
Green-tree retention is being implemented on state and
federal lands in Oregon. Silvicultural prescriptions with
tree and snag retention are thought to mimic natural
disturbance patterns in the Pacific Northwest more closely
than traditional silvicultural practices, which reduce
structural complexity. The effects of green-tree retention
on native bird species in...
Stem defects, including sinuosity, large branches, and the occurrence of steep-angled
branches (e.g., forks and ramicorns) can occur with high frequency in young
plantations of Coastal Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco).
The importance of including these stem defects as criteria in early selection depends, in
great part, on...
Selective suppression of crown and root sprouting of
non-coniferous cover are the keys to effective forest
vegetation management. This study 1) develops insight into
mechanisms of controlling root suckering and top regrowth of
bear clover (Chamaebatia foliolosa), and develops a broad
data base for controlling broad groups of vegetation
chemically....
Soil effects from mountain beaver (Aplodontia rufa ) burrowing were
investigated in Oregon Coast Range soils formed from Tyee sandstone. The potential
for observed changes in soil to affect productivity was assessed. Soil horizons from
mountain beaver mound soil and adjacent unmounded profiles were collected with a
monolith-type quantitative sampler....
Ten herbicides (atrazine, azafenidin, chlorsulfuron, clopyralid, hexazinone, imazapic, imazapyr, metsulfuron, pendimethalin, and sulfometuron) were evaluated for phytotoxicity in first-year seedlings of eight conifer species (Douglas-fir, grand fir, noble fir, redwood, Sitka spruce, western hemlock, western red cedar, and western white pine). Six of these herbicides (atrazine, clopyralid, hexazinone, imazapyr, metsulfuron,...
This study investigates the setting, lifework, and influence of Josephine E. Powell,
a photographer who traveled and lived with Middle Eastern nomads from the 1960s
through the 1980s, while studying, photographing and collecting their textiles. In this
period of time nomads of the Middle East were being strongly and often...
This study was conducted to investigate why root disease centers east of the
Cascade crest tend to be larger in diameter and more abundant than their counterparts to
the west, within subalpine forest stands of central Oregon. The trend in a 290 km² study
area appeared opposite of what was...
In western Oregon, hardwood trees occupy 20% of the
timberland but account for less than 1% of the timber
harvest. Information about how to manage them effectively
is limited.
The objective of this study was to examine: 1)
effect of thinning on tree growth, plant moisture stress,
and crown cover...
The pigments of blackberry fruit were investigated by analytical and preparative high performance liquid chromatography (HPLC) to characterize anthocyanin patterns in commercially important blackberry (Rubus eubatus) cultivars and selections. Five anthocyanin pigments were detected in Evergreen blackberry and they were identified as cyanidin-3-glucoside, cyanidin-3-rutinoside, pentosecyanidin derivative and two acylated cyanidin...
Animation has long been a staple of children's television programming As
public service announcements (PSA5) have become an important part of children's
television programming, cartoon characters have started to appear in this form of
nonprogram material. By standard definition, PSAs are usually a 15 to 60-second spot
that promote education...
Sage grouse (Centrocercus urophasianus) populations in Oregon
declined during the past 30 years as a result of impaired productivity.
The western subspecies (C. u. phaios) was listed as a candidate for
threatened and endangered status by the Department of the Interior in
1985 because of declines in Oregon and Washington...
The habitat relationships of Swainson's hawks in
northern California were studied at several levels of
resolution: 1) distribution of hawk populations among three
adjacent geographic areas, 2) density of hawk territories
among landscapes within a single geographic area, 3)
habitats associated with individual nesting territories, and
4) selection of foraging...
Signal crayfish Pacifastacus leniusculus were studied in Lake Billy
Chinook, Oregon, during 1994 and 1995. Because little was known about the
crayfish population, this study was conducted to obtain reliable estimates of life
history and population parameters, document historic commercial harvests, and
make management recommendations. Crayfish were captured with baited...
The decorated saddle blankets that are part of many museum collections
are a distinctive facet of Native American culture. They exhibit the
craftsmanship and artistic merit that characterize the Plains art style. This study
examines decorated saddle blankets from three viewpoints.
An historical overview suggests that although the horse and...
Fort Hoskins, located in Kings Valley, Oregon, was a U.S. Army post
established in 1856 and decommissioned in April 1865. In 1992, the site of Fort
Hoskins went into the public trust as a Benton County Park. Developing an
interpretive center for the park will necessitate ground disturbing activities on...
Landscape level habitat alterations can have different effects on different species. Species that are more highly specialized for some important aspect of their natural history are expected to be more sensitive to habitat alteration than are those that are generalists. The Northern Pygmy-Owl (Glaucidium gnoma) has been suggested as a...
Riparian plant assemblages give clues of the conditions of the soil and other physical characteristics of their stream-side environment. The plight of the spring/summer, and fall Snake River chinook salmon has aroused interest in fish habitat and the effects of riparian plants on fish habitat. This study was launched to...
The lack of hamstring muscle group flexibility has previously been associated with a higher incidence of hamstring strains among athletes. Several stretching methods have been shown to increase hip joint range of motion (ROM); however, identification of an optimal stretching method has proven difficult. The purpose of this study was...
Native flood meadows are important for hay production and winter feeding areas in many western states. With the introduction of meadow foxtail (A lopecurus pratensis L.) and other new species, the botanical composition of the meadows has been steadily changing. With shifting priorities occuring on public lands, these flood meadows,...
The Eyjafjöll Volcanic System, in southern Iceland, is a member of the
Southeastern Volcanic Zone (SEVZ), a segment of the Mid-Atlantic Ridge. The
SEVZ is a well-exposed (subaerial) propagating rift, analogous to the
volcano-tectonic structures that accommodate the growth of ocean floor
spreading ridge segments. Eyjafjöll represents 780 Ka of...
In the late 1970s, approximately 400 miles of streams were inventoried by the
Prineville District of the Bureau of Land Management for in-stream and riparian condition.
During the summer of 1994, the riparian portion of the survey was repeated on 17 of the
original streams miles, contained within 11 stream...
Rotary screw traps were used to estimate Pacific lamprey smolt yield,
outmigration timing, age structure and sex ratio for Tenmile Creek basin, Lane County,
Oregon. Traps were fished March to June and August to December 1994 and March to
June and October to December 1995. Lamprey smolts caught in the...
Blue whales (Balaenoptera musculus) are the largest of the baleen
whales. Blue whale calls were recorded off the coast of California in fall,
1993 and measured for frequency and time characteristics. On average, blue
whale calls lasted 16 s, swept down from 18.9 to 17.3 Hz and were
repeated every...
I investigated habitat use and home range size of northern goshawks in the southern Cascades, in the Shasta- Trinity and Klamath National Forests of northern California. My objectives were to 1) estimate the average home range and 2) describe the use of habitats within home ranges by breeding goshawks. Ten...
The Columbia River Estuary was sampled during high (May-June), intermediate (July), and low (September-October) river flow seasons to further define the role of the ETM with respect to its effect on primary biomass and production, and to discover how this effect changes in space and time.
Strong ETMs were determined...
This thesis is an exploratory and descriptive study of the relationship between a US
military base and Kin Town, Okinawa, Japan, presented in the form of ethnography.
Guided by James Scott's theory of "weapons of the weak," it explores the relationship
between the two in terms of how the townspeople...
The Best Opening Face (BOF) log breakdown model was
modified to keep track of growth ring angle and growth
ring density in boards. The model was used to determine
the effects of producing rectangular rather than square
pencil stock. While an increase in volume did result,
there was also a...
Product quality control is the back bone for an efficient process control system. By monitoring the size of the board cut in a sawmill, performance of the production system can be controlled. Feedback from the quality control system is used to evaluate the status of the production system and also...
Statistical Process Control techniques have been successfully
implemented in the mechanical fabrication and chemical manufacturing
industries. The techniques consist of the application of statistical
theory in conjunction with quality control procedures. To date the
Forest Products industry has yet to apply these techniques toward lumber
drying. This thesis focuses on...
Evidence suggests that adipose tissue is not a homogeneous entity,
but rather that it differs functionally and morphologically according to its
anatomical location. Production of a site-specific monoclonal antibody
(MAb) is therefore of interest, not only for the study of adipocyte
development and differentiation, but also for the elimination of...
With high costs of testing and rating a structural system for
fire resistance, the utilization of computer simulations that
approximate the integrity of structural subsystems could conceivably
reduce development costs. Before an analysis of a light-frame wood
system can occur, information on the components of the substructure
must be known....
The potential of 9 bacterial and 6 fungal isolates to
protect wood against wood staining microorganisms was
studied using small sapwood samples of unseasoned Ponderosa
pine [Pinus ponderosa Laws] sapwood. Bacillus subtilis Cohn,
isolate 733 A , Gliocladium virens J.H. Miller, J.E. Giddens
& A.A. Foster isolate H 3 and...
A log breakdown model, SAW3D, was developed to
optimize lumber recovery from logs of any shape in 3-
dimensional space. The program uses a polygonal cross
section representation of logs; three nested dynamic
programming (DP) algorithms to optimize log breakdown,
flitch and cant edging, and trimming operations; and a
simple...
Studies of physiological effects of fungicides on fungi are critical for understanding
modes of action and mechanism of resistance; however, studies are difficult to perform
on filamentous fungi because of the inability to produce homogeneous a biological
system using a mass of mycelium. Moreover, the presence of rigid cell wall...
Particleboard is a widely used composite panel product
consisting of consolidated wood particles and adhesive. On
a macro level the panel appears to be homogeneous, however,
its density varies both throughout the plane of the panel
as well as through its thickness. Of concern for this
thesis is the through-thickness...
It has been observed that edging flitches into lumber
unnecessarily reduces the yield of cut stock. This research
investigated the yield of cut stock from unedged red alder
(Alnus rubra) flitches, and compared it to yields attained
from boards subjected to a variety of edging strategies:
conventional, light-edging, actual, severe...
The moulding and millwork industry consumes large
quantities of shop grade lumber which is becoming less
plentiful and of a lower quality. This fact has compelled
industry to explore the use of new technology to increase
product yield. One prospect for increasing yield is the
application of thin-kerf sawing technology....
There are several chemical treatments for paper to
Improve its strength properties. Durable press treatment is
usually used as a textile chemical finishing; however, there
is little information available on the application of durable
press treatment for paper. The durable press treatment was
applied to bleached softwood kraft handsheets using...
In spite of the lack of accurate information about the
treatability of western wood species with waterborne wood
preservatives, consumption of these products continues to
increase. Western wood species, notably Douglas-fir, are
notoriously difficult to treat with waterborne systems, yet
there is relatively little data on the effects of wood...