We, for the first time, demonstrate that orthorhombic V₂O₅ can exhibit superior electrochemical performance in sodium ion batteries when uniformly coated inside nanoporous carbon. The encapsulated V₂O₅ shows a specific capacity as high as 276 mAh/g, while the whole nanocomposite exhibits a capacity of 170 mAh/g. The V₂O₅/C composite was...
Full Text:
, Y.; Kim, J.;
Lee, J.; Nazar, L. F.; Lee
, K. T. Adv. Energy Mater. 2013, 3, 770-776.
[7
Na-ion batteries are emerging as one of the most promising energy storage technologies, particularly for grid-level applications. Among anode candidate materials, hard carbon is very attractive due to its high capacity and low cost. However, hard carbon anodes often suffer a low first-cycle Coulombic efficiency and fast capacity fading. In...
Full Text:
, 4, DOI:10.1038/ncomms3922.
29. David, L.; Bhandavat, R.; Singh, G. MoS2/Graphene Composite Paper
A low-voltage plateau at ∼0.3 V is discovered during the deep sodiation of Na₃V₂(PO₄)₃ by combined computational and experimental studies. This new low-voltage plateau doubles the sodiation capacity of Na₃V₂(PO₄)₃, thus turning it into a promising anode for Na-ion batteries.
Full Text:
(a) M. D. Slater, D. Kim, E. Lee and C. S. Johnson, Advanced
Functional Materials, 2013, 23, 947; (b
Ectomycorrhizal (ECM) fungi of the genera Piloderma and Ramaria form dense hyphal mats in the organic and upper mineral soil layers, respectively, in coniferous forest floors of the Pacific Northwest. Previous studies have determined that fungal mats change the chemical, physical, and biological properties of the soil within. Little information...
By 1900 domestication was a promising, if somewhat vexed, subject in biology. Volumes had been written about domestication, but little serious scientific inquiry was directed toward the phenomenon. Expertise lay with practical men, primarily breeders and fanciers. The bulk of scientific commentary on domestication came from anthropologists who derived theories...
The central purposes of this study were to review the
historical sources of David Kolb's formulation of experiential
learning theory, and to determine the effect and
application of Kolb's theory and Learning Style Inventory
as reflected in the literature between 1971 and 1990.
It was found that Kolb based his...
General purpose computer systems have seen increased performance potential through the parallel processing capabilities of multicore processors. Yet this potential performance can only be attained through parallel applications, thus forcing software developers to rethink how everyday applications are designed. The most readily form of Thread Level Parallelism (TLP) within any...
The purpose of this thesis is to explore the design of a multimedia extension Instruction Set Architecture (ISA) for a reconfigurable processor. An Extendable Multimedia Module (EM3) was designed as an optional module for X32V. X32V is a prototype configurable processor simulator developed at Oregon State University by John Mark...
There appears to be a broad agreement that high-performance computers of the future will be
Massively Parallel Architectures (MPAs), where all processors are interconnected by a high-speed
network. One of the major problems with MPAs is the latency observed for remote operations. One
technique to hide this latency is multithreading....
This was a study designed to determine the occurrence of recovery
from radiation damage in Taricha granulosa. Irradiation with either
gamma or x-ray sources in the range of 96-10,000 rads was given. (The
mean or median survival times were determined.) Doses were fractionated
and the survival times for the same...
A MOS biquadratic (biquad) filter employing the switched-current technique is
reported. The circuit uses current-mode processing which can offer wide
bandwidth, low voltage operation, and can be implemented with standard CMOS
technology. Examples of lowpass, highpass, and bandpass filters are given
which illustrate the synthesis procedures and the versatility of...
Two numerical methods are presented that can be used to solve
second order nonlinear ordinary differential equations with periodic
boundary conditions. One of these methods is a shooting method developed
solely for the periodic problem. The other, "quasilinearization,"
is a method applicable to a wide variety of problems. It is...
Flat, laminar, premixed hydrocarbon-air flames were stabilized
on a porous-plate burner. In addition to temperature profiles,
concentration profiles were measured for methane, ethane, ethylene,
propane, acetylene, propylene, carbon monoxide, carbon dioxide and
oxides of nitrogen. Dead space thickness, luminous flame zone
thickness and hydrocarbon disappearance point responses were also
monitored....
Recent conflicts in America concerning the environment (the harvesting of old growth timber in the Pacific Northwest, or the proposed opening of public lands in southern Utah to mining interests, for instance) have precipitated a personal examination of "historical others" (Jensen 64), individuals that possess very different sensibilities from a...
Effects of light intensity, exposure to desiccation, reduced
salinity, and thermal elevation on the functional and structural characteristics
of marine benthic diatom communities were investigated
in a laboratory model ecosystem and a respirometer chamber.
Measurements of biomass (dry weight and ash-free dry weight)
and chlorophyll a were made for each...
Species associations of fifteen major commercial groundfish species in the
northeastern Pacific ocean and their spatial and temporal characteristics were studied
using Oregon bottom trawl logbook data, 1987 to 1993. Screening procedures were used
to remove questionable data from the original logbook files, which resulted in the
exclusion of information...
Leptarctia californiae (Walker) was studied on clear and semi-forested southern slopes in the Coast Range Mountains of Benton County, Oregon. The spring of 1965 had an unusually long warm period (21 days) resulting in adult emergence approximately 25 days earlier than in the cooler spring of 1966. Peak flight activity...
Malonaldehyde, a three carbon dialdehyde, is one of the numerous
carbonyl compounds associated with oxidative deterioration of
food lipids. It is assumed to be formed as a product of lipid autoxidation
occurring according to the generally accepted free radical
mechanism. This compound is of great interest because of its potential...
Recently, switched-current circuits have received great
attention because they offer potentially better performance in terms
of speed, low voltage power supplies, and accuracy in mixed-mode
analog-digital signal processing. In this thesis, the distortion
characteristics, DC offset and AC gain errors induced by the threshold
voltage, channel width, channel length, and...
Field studies were conducted in 1973 and 1974 to determine the
soil persistence of the herbicide M-3785 (containing 0.5 lb a.e.
Dowco 290 + 2.0 lb a.e. 214D/gallon). under cropping situations.
Spring barley (Hordeum distichon L. 'Hannchen') was grown at
Corvallis, Oregon and winter wheat (Triticum aestivum L. 'Nugaines.')
was...
The microprocessors will have more than a billion logic transistors on a single chip in the near future. Several alternatives have been suggested for obtaining highest performance with billion-transistor chips. To achieve the highest performance possible, an on-chip multiprocessor will become one promising alternative to the current superscalar microprocessor. It...
This thesis will cover work that I have completed relating to the field of terahertz (THz) science. My work has consisted of generating tunable, narrowband THz pulses in a table-top optical setup and using both narrow- and broadband THz pulses to study various material systems. Broadband THz pulses were used...
Vegetation diversity in the Wyoming big sagebrush/Thurber needlegrass (Artemisia tridentata Nutt. ssp. wyomingensis Beetle & Young/Achnatherum thurberianum (Piper) Barkworth. syn. Stipa thurberiana Piper) plant association was studied across a condition class gradient in southeastern Oregon. All observable vascular plant species were counted during 6 seasons and 2 years and diversity...
Driven by the need for high energy-density power sources, demand has
stimulated the development of small-scale engines. A small-scale engine
with a fuel supply could replace batteries and utilize higher energy-density
liquid hydrocarbon fuels; such an advance could deliver a new age of
portable devices. Currently, operable small-scale engines exist;...
This thesis examines the characterization of the femme fatale and the implications of this trope for late-Victorian gender and sexuality in the ghost stories of female aesthete Vernon Lee. In her treatment of the femme fatale figure, Lee both reinforces and complicates the image of the sexualized, often bestialized woman...
The composition and some qualitative aspects of ground beef
offered for sale in Corvallis, Oregon were studied. Samples were
purchased from six retail markets twice weekly throughout a six
week test period. Three stores were independently owned and operated
and three were chain stores.
Differences in moisture, fat and protein...
Lepidium latifolium L. (perennial pepperweed, LEPLA) is an exotic invader throughout western North America. At Malheur National Wildlife Refuge (MNWR) in southeast Oregon, it has invaded about 10% of meadow habitats that are important for wildlife. This study's objective was to determine the most effective and least environmentally harmful treatment...
This dissertation covers my work relating to the application of strong terahertz (THz) radiation to study the nonlinear properties of nano-scale material. It presents experimental and numerical studies on the optical and electronic properties of various material system including single-layer graphene, multi-walled carbon nanotubes (MWCNTs), nanoantenna-patterned gallium arsenide (GaAs) and...
The purpose of this study was to determine the validity of MMPI scores that were estimated from CPI data. This was later expanded to encompass whether generally low California Psychological Inventory (CPI) t-scores below 25 were predictors of elevated actual Minnesota Multiphasic Personality Inventory (MMPI) profiles. The sample consisted of...
AE32000 microprocessor was developed mainly to address the need for the reduction in the amount of memory accesses in embedded applications. One of the primary goals of a computer architect is the design and construction of machines, that support the efficient execution of the programs that will run on them....
Sunflower (Helianthus annuus L., cv. NK894) seedlings, grown hydroponically, were exposed to ozone concentrations of 0.0, 0.1, 0.2, and 0.3 ppm at 60% RH, or 0.0
and 0.3 ppm at 30% and 90% RH, for 6 h/d, for four consecutive days, at ages 15 to 18 days from seeding. Plant...
During the U.S. military interventions in Nicaragua, the Dominican
Republic, and Haiti between 1915 and 1934, Washington equipped
members of the its armed forces with civil and political powers that
represented a radical departure from the North American military tradition.
This abandonment of tradition decisively contributed to both the
disappointments...
Applications of ethofumesate in Oregon have been observed from
previous research and from commercial use to be less effective when
applied to dry soils, even if subsequent precipitation occurred
within a few days. Two field studies were established in the
summer of 1979 using sweet corn (Zea mays L. 'Jubilee')...
At a time when environmental conditions are rapidly changing, understanding how thermal extremes impact wildlife is imperative to fully understanding the consequences of climate change in natural ecosystems. While many organisms are currently impacted by rapidly warming and more erratic environmental conditions, identifying and investigating model species whose life histories...
This thesis will cover my work relating to the developing field of terahertz (THz) science and technology. It will present experimental and theoretical studies investigating the optical and electrical properties of various material systems using novel THz imaging and spectroscopy techniques. Due to its low photon energy, THz imaging and...
In this dissertation, a series of studies in the field of terahertz (THz) science are presented, specifically using nonlinear THz spectroscopy. We exploit huge field enhancement and subwavelength confinement in plasmonic structures. There are three distinct projects which will be discussed: nonlinear THz spectroscopy using plasmonic induced transparency (PIT), THz-triggered...
The use of radioactive isotopes as tracers in biological systems
has become widespread since the close of World War II. Proper
use of radiotracers requires a fundamental understanding of the physical
nature of radioactivity, the characteristics of ionizing radiation,
and the various methods available for measuring radioactivity.
More importantly, the...
Advancements in the sophistication and complexity of modern electronic systems are creating a need for highly integrated systems with ever higher operational frequencies. The economical demands of these systems dictate that they be implemented using low cost fabrication technologies, such as digital CMOS. One of the major challenges facing circuit...
This study aimed to explore the relatively undocumented experiences and perceptions of mattering and marginality among Middle Eastern students attending a large American university, it also sought to inform higher education administration about the unique characteristics of this rapidly noticeable student population and it attempted to narrow the knowledge gap...
Although the timber industry was the major economic force in the lives of several generations of Oregon families, very little archaeological investigation has been done on the dozens of abandoned logging camps that are scattered throughout the forests of the Pacific Northwest. This project focuses on Camp 1, a 1920s...
Since 2005, the United States has experienced a significant influx of international students from Saudi Arabia, particularly women (Bollang, 2006). The American educational structure is something Saudi women have never experienced due to the vast differences between both cultures in all facets. There is very little to no research conducted...
Massive Multiple-User Miltiple-Input Multiple-Output (MU-MIMO) wireless communication systems incorporate promising advanced strong technologies for upcoming 5G communications. To obtain some of the high spectrum and energy e ciencies bonuses brought by MU-MIMO systems, the ability to obtain Channel State information, especially on the receiver side (CSI), is important. To minimize...
Remnants of railroad logging camps, and their associated features, are perhaps some of the most common archaeological resources found on public lands in the Pacific Northwest. Many camps have already been located, their cultural materials inventoried, and networks of logging railroad grades mapped. Yet, despite these efforts, little can be...
Site ORYA3, the Smith House, is located in Dayton, Oregon. The archaeological project originated because owners of this structure, listed on the National Register of Historic Places, applied for a demolition permit. The 1859 home, first occupied by two early Oregon pioneers, Andrew and Sarah Smith, was considered architecturally significant,...
The Willamette Mission archeological project
consists of a broad program of cultural research in the
fields of archeology, history, and architecture. The
study focuses on the first Methodist mission in the
Pacific Northwest. Archeological excavations were
conducted in 1980 to locate the site of the mission, to
assess the site's...
The Willamette Mission archeological project
consists of a broad program of cultural research in the
fields of archeology, history, and architecture. The
study focuses on the first Methodist mission in the
Pacific Northwest. Archeological excavations were
conducted in 1980 to locate the site of the mission, to
assess the site's...
In 2021, Oregon’s legislature passed House Bill 2021 with relative ease. House Bill 2021 is a mandate for the state’s two largest utilities to reduce carbon emissions from electricity generation on a decreasing scale, reaching 100% below baseline levels by 2040. This ambitious piece of legislation, meant to reduce the...
Over the past ten years, reports of piracy and other forms of maritime violence have been dramatically on the rise. As these reports increase, so too does international attention toward how to solve this. This thesis examines the development of cooperative maritime security efforts in both Southeast Asia and the...
This dissertation focuses on the life of Dixy Lee Ray as it examines important developments in marine biology and biological oceanography during the mid twentieth century. In addition, Ray's key involvement in the public understanding of science movement of the 1950s and 1960s provides a larger social and cultural context...
Nitrogen fertilization of seedling legumes is a controversial practice intended to provide N to the plant during periods when seed N, soil N, and N₂ fixation may not meet plant requirements; eg. prenodulation, postharvest, or in the event of an inoculation failure. Field experiments were conducted in 3 consecutive years...
The engineering design process and the advancement of future computer-aided-design systems need new design aids to be used during the conceptual design phase. This design phase is where information gathering and understanding of the problem are developed, analyzed and broken into small more manageable elements. These elements consist of customer...
Site 35JA42 represents the first protohistoric village
complex excavated in Southwest Oregon. Analyses of animal
bones recovered from the site offer the first significant
insights into human subsistence behaviors in this region.
Although the faunal assemblage is extremely fragmented,
detailed zooarchaeological analysis indicates that deer were
the primary meat resource...
Gallium arsenide shows excellent promise for terahertz generation using mid infrared.
This is for two reasons. First, the indices of refraction for the terahertz (nTHz=3.61 at 1 THz) and mid infrared (nopt=3.431 at 2 μm) are close allowing a long interaction length.
Second, the linear absorption is low at terahertz...
This work comprises two main parts: creating and shaping narrowband, pulsed THz radiation in a table-top optical setup; and applying THz pulses to semiconductor nanostructures to study electron dynamics.
I developed a scheme to shape the THz output of a fanned-out periodically poled lithium niobate (PPLN) crystal. The pulses are...
Institutions of higher education face a global mandate, understanding and addressing the concept of internationalization in the 21st century. As the world becomes "smaller", there is a need for college students to expand their awareness and understanding of multinational cultures and issues. Recently, many four-year colleges and universities have taken...
The purpose of this study is to determine factors that encourage second
generation Latina/os to obtain a community college education. A critical qualitative
ethnography focused on "Testimonio" was used in conducting this study. The key
findings were formulated around three critical research questions. In relation to each
research question, three...
:
________________________________________________________________________
Shelley I. Dubkin-Lee
The purpose of this study is to determine factors that encourage
This study documented the influence of the completion agenda on decision-making by community college career and technical education (CTE) deans. Ten career and technical programs deans were identified as the sample for the study. Washington State was selected because of the Student Achievement Initiative that was developed as a completion...
Every student has a creative potential. An atmosphere needs
to be maintained in the classroom that motivates and encourages the
student to use and to develop this potential. Evidence indicates that
teachers need help in freeing and in stimulating each student's creative
potential. A learning package on design principles was...
Purpose of the Study
The purpose of this study was to determine the effectiveness of
three methods of changing vocational educators' sex-role perceptions
of themselves and their sex-role perceptions of males and females to
a more androgynous state. The hypotheses tested were: (1) there
is no difference in sex -role...
Purpose of the Study The purpose of the study was to determine if differences existed in commitment to teacher collective bargaining associations among vocational teachers. The objectives were: (1) to determine the degree of commitment among secondary vocational teachers to the teachers' collective bargaining association; and (2) to determine the...
The purpose of the study was to develop a proposed in-service program for cooperating teachers who supervise student teachers. Forty-one cooperating teachers for the Home Economics Education Department of Oregon State University rated the competencies of a good supervisor of student teachers. Also, 17 heads of home economics teacher education...
All individuals are part of a family, and are confronted with
all the complexities that accompany family life during some portion
of their lifetime. Thus, inter-relationships between all family
members are an important aspect of education.
The school curriculum should be relevant to the needs of youth.
Family life education...
Most parents want their children to grow into independent adults,
able to make decisions with which they can live, and able to cope with
the pressures and problems of a world different from that which the
parents have known.
Parents are teachers of their children and as such they need...
The Purposes of the Study
The primary purpose of this study was to identify common professional
education competencies needed by public school district
vocational education leaders. Other purposes were to (1) determine
if significant differences existed in vocational education leadership
competencies among respondents as categorized by state, type of
position...
STATEMENT OF THE PROBLEM
Document-based educational information systems require systematic
acquisition efforts that must be conscientiously undertaken to build an
information system and to keep it current. These acquisition efforts
can be influenced by several variables. The major thrust of this
research was to investigate one of these variables, namely...
The major purpose of the study was to develop a resource
guide for use at the late junior or early senior high school
level to be used with boys and girls, integrating the subjects
of homemaking and industrial arts. To plan this guide, the
writer:
1. Surveyed the industrial arts...
The Purpose of the Study: The major purpose of this study was to determine if there were differences among the opinions of participating employers, previous participating employers, and non- participating employers concerning cooperative vocational education,. The hypothesis that there is no significant difference among the mean scores for the three...
The purpose of the study was to develop a resource guide
1. to introduce high school students to ways in which
intellectual development can be taught in early childhood
education programs.
2. to give early childhood educators additional ways of
teaching intellectual concepts to preschool children.
To achieve this purpose,...
The dramatic upsurge of contract-supported archaeological activity,
generated by legislative action, has precipitated an increase
in information about Oregon's prehistoric peoples. This information,
however, has not been presented in a format which can be easily
understood by the general public.
This study presents an account of early peoples in Oregon,...
Understanding the effects of habitat disturbance on a species' habitat selection patterns, and demographic rates, is essential to projecting the trajectories of populations affected by disturbance, as well as for determining the appropriate conservation actions needed to maintain those populations. Greater sage-grouse (Centrocercus urophasianus) is a species of conservation concern...
This research was designed to study the perinatal and
postweaning effects of the interaction between ethanol and low
dietary zinc during gestation and lactation in the rat.
Pregnant rats were fed liquid diets containing either 2 or 10
μg zinc/ml with or without 30% of kcal from ethanol throughout
gestation...
Previous studies have shown loss of ethofumesate activity when
the herbicide was applied to dry soil (2% w/w moisture content) in
both field and greenhouse studies, even when rainfall or irrigation
was received within a few days. Laboratory studies were conducted to
determine the mechanism for this activity loss. Dry...
NAND flash based solid state drives (SSDs) require out-of-place updating due to the characteristics of flash memories. In addition, due to the mismatched granularity between read/write and erase operations, a cleaning policy involving garbage collection and wear leveling has to perform data migration incurring high overhead. Another challenge is that...
Missing data can lead to biased and inefficient estimation if the missing mechanism is not taken into account in the analysis. In this dissertation we propose two estimators that, under fairly general conditions, are asymptotically unbiased. The first proposed estimator assume the data are missing at random (MAR) and does...
This research explores the consequences and effects for men
enrolled in introductory Women Studies courses at Oregon State
University. Men are enrolling in the feminist classroom in larger
numbers due to institutional changes allowing Women Studies to
provide credit for baccalaureate core curriculum. The intention of
this study is to...
Since its introduction in the early 1990s, the quick growth of the World Wide Web
(WWW) traffic raises the question of whether past Local Area Network (LAN) packet
traces still reflect the current situation or whether they have become obsolete. For this
thesis, several LAN packet traces were obtained by...
Field, growth chamber, and greenhouse studies were carried
out to evaluate factors that cause low seed set in Dactylis Glomerata
L. The variety, 'Latar', and the parental clones of the variety,
'Pennlate', were studied in detail.
Floral anatomy investigations indicated that 98 percent of
Dactylis flowers opened at Corvallis in...
This thesis focuses on performances of masculinity by British Royal Flying Corps (RFC) airmen in the charged landscape of the First World War prisoner of war (POW) camp. I examine how captive airmen coped with imprisonment by reasserting the familiar homosocial communities of pre-capture squadron life, particularly through practices associated...
Dynamic multithreaded processors attempt to increase the performance of a single
sequential program by dynamically extracting threads from sources such as loop
iterations. The scheduling of instructions in such a processor plays a vital role in the
amount of thread level parallelism that can be extracted and thus the overall...
The AE32000 processor core, developed by Advanced Digital Chips Inc., Korea, is used primarily in the embedded processing environment. The AE32000 simulator models this embedded processor core having high code density. An enhanced simulator was developed to study the performance of the present Instruction Set Architecture after comparison with the...
This field investigation was designed to further
the understanding of the significant influence which
parent population density, as well as dispersion, have
on the dynamics of enclosed populations of the montane
vole, Microtus montanus (Peale). The study was conducted
in Klamath County, Oregon from June, 1963 to February,
1964. The...
This is a psycho-socio-linguistic study of language
as the primary tool of institutions such as education,
government, and religion. These institutions have goals
associated with identifying with, communicating with, and
influencing individuals in the general public who are not
Part of the group. A review of psycho-socio-linguistic
theory suggests that...
The purpose of this study is to critically analyze whether India’s National Population Policy of 2000 represents a paradigm shift in terms of how the nation-state conceptualizes and address population growth through formal population policy. Analyzed through transnational feminist theory, this study employed political discourse analysis as the research method....
Hand detection is a fundamental step for many hand-related computer vision tasks, such as gesture recognition, hand pose estimation, hand sign language translation, and so on. However, robustly detecting hands is a challenging task because of drastic changes in appearance based on finger articulation and changes in lighting conditions, camera...
The increasingly corporatized and privatized public university has resulted in significant role changes for students and faculty. Among these changes includes the development of online education and its proliferation among various disciplines to not only increase educational access, but to sustain budgetary program needs. Such processes are occurring in women's...
Books and literature help children and young adults develop language, cognitive, and social skills. Additionally children's literature enables individuals to develop a deeper appreciation for their own, and others' cultures and histories. This thesis analyzes the young adult historical fiction series Dear America, published by Scholastic press, and examines how...
The azalea lace bug (Stephanitis pyrioides Scott) is a recently detected invasive pest to the Pacific Northwest and has become a major concern in Oregon. It feeds on azaleas as well as rhododendrons causing stippling on the top side of leaves. The damage is aesthetically displeasing and affects plant vigor...
This investigation was concerned with the work values of tenth
grade girls and their relationship to the girls' aspirations and expectations
for future education and marriage-career roles.
The instrument employed for the value measurement was the
Work Values Inventory of Super (1968). An original questionnaire was
developed by the researcher...
Wireless Networks have been widely adopted into a major part of today's network infrastructure. They have become a popular technology to not only expand the coverage of wired networks but also to interconnect a large wireless network, i.e., wireless mesh networks. As they allow more flexible communication than traditional wired-networks...