Digital Commons Network^™

Analysis Of Interphase Formed On The Electrodes Of Lithium Ion Batteries, Swapnil Dalavi

Open Access Dissertations

Lithium-ion batteries (LIBs) are one of the most widely used energy sources, especially for portable electronics. However, the development of lithium ion batteries for Electric Vehicle (EV) and Plug-in Hybrid Electric Vehicle (PHEV) requires the research and development of improved electrolytes. The development of electrolytes which allow LIBs to perform over a wide temperature range and operating potential are of significant current interest. The interphase formed on the surface of the electrodes generally governs kinetics of charging and discharging and is an important factor in life of LIBs. Favorable electrode interphases can be generated by altering the composition of the …

Exposures To Multiple Environmental Chemicals (Lead, Methylmercury And Polychlorinated Biphenyls) Among Childbearing-Aged Women In The U.S., Marcella Remer Thompson

Open Access Dissertations

It is estimated that 5 to 20% of neurodevelopmental disabilities in children are caused by environmental toxic exposures. Lead, methylmercury and polychlorinated biphenyls (PCBs) are known to have neurobehavioral and neurodevelopmental consequences in animal models and human population studies. Bioaccumulation and exposures during gestation transfer from mother to fetus via the placenta and to an infant and young child through lactation. Little is known about multiple environmental chemical exposures, especially among childbearing-aged women.

This descriptive and exploratory study involved analysis of existing data from the National Health and Nutrition Examination Survey (NHANES), a national probability sample. Lead, methylmercury and the …

Wave-Induced Sediment Transport: Simulation Of Turbulent Wave Boundary Layers, Jeffrey C. Harris

Open Access Dissertations

Two manuscripts are presented which develop a numerical method for studying boundary layer flow and sediment transport on the seafloor. Inviscid flow, either through an analytic solution or a numerical wavetank (NWT) is used to force a previously developed three-dimensional Navier-Stokes model. The resulting hybrid model is able to simulate complex turbulent flows near the ocean bottom or around obstacles.

The first manuscript reports on developments of a perturbation approach to large-eddy simulations (LES) of wave-induced boundary layers. In the present formulation, the total velocity and pressure fields are expressed as the sum of irrotational and near-field viscous perturbation, where …

The Effect Of Risk, Time Preference, And Poverty On The Impacts Of Forest Tenure Reform In China, Karen Anne Sullivan

Open Access Dissertations

Forest degradation has steadily increased throughout much of the world. The cause of this continued degradation is complex and multifaceted but there is a growing realization that a key cause, especially in developing countries, is insecure rights to ownership and use of forest resources. This realization coupled with a call for pro-poor forestry policy has stimulated the recent trend in forest policy toward strengthening property rights for forest resources by transferring property rights from the state to communities and individuals, giving them defined rights to manage and extract forest resources. However, a big puzzle remains unsolved—such reforms on property rights …

The Advancement Of Mass Spectrometry-Based Hydroxyl Radical Protein Footprinting: Application Of Novel Analysis Methods To Model Proteins And Apolipoprotein E, Brian Gau

All Theses and Dissertations (ETDs)

Fast photochemical oxidation of proteins: FPOP) has shown great promise in the elucidation of the regions of a protein's structure that are changed upon interaction with other macromolecules, ligands, or by folding. The advantage of this protein footprinting method is that it utilizes the reactivity of hydroxyl radicals to stably modify solvent accessible residues non-specifically in a microsecond. The extent of *OH labeling at sites assays their solvent accessibility. We have corroborated the predicted profoundly short timescale of labeling empirically, by FPOP-labeling three oxidation-sensitive proteins and examining their global FPOP product outcomes. The novel test developed to validate conformational invariance …

Horse-Trading In Smoke-Filled Rooms: Power In The 2008 West Virginia Republican Presidential Convention, Nora Kay Ankrom

Theses, Dissertations and Capstones

The 2008 West Virginia Republican Presidential Convention was the first of its kind and presents an intriguing case study of power in politics. A small percentage of West Virginians are Republican and an even smaller percentage of those Republicans participate in politics. Based on this situation, the elite members of the West Virginia Republican Party would be expected to produce their candidate as the winner of the state's first ever presidential convention. This, however, was not the case. A perceived second tier candidate claimed victory instead, much to the anger and dismay of the party regulars. This study interprets and …

Shock-Associated Noise Generation In Curved Coanda Turbulent Wall Jets, Caroline P. Lubert, Richard J. Shafer

Department of Mathematics and Statistics - Faculty Scholarship

Curved three-dimensional turbulent Coanda wall jets are present in a multitude of natural and engineering applications. The mechanism by which they form a shock-cell structure is poorly understood, as is the accompanying shock-associated noise (SAN) generation. This paper discusses these phenomena from both a modeling and experimental perspective. The Method of Characteristics is used to rewrite the governing hyperbolic partial differential equations as ordinary differential equations, which are then solved numerically using the Euler predictor-corrector method. The effects of complicating factors -- such as radial expansion and streamline curvature -- on the prediction of shock-cell location are then discussed. This …

Heat Recovery Mechanism In The Excitation Of Radiative Polaritons By Broadband Infrared Radiation In Thin Oxide Films, Anita J. Vincent-Johnson, Kyle A. Vasquez, John E. Bridstrup, Andrew E. Masters, Xiaofeng Hu, Giovanna Scarel

Department of Physics and Astronomy - Faculty Scholarship

This work probes radiative polaritons in thin oxide layers as a mean to capture and absorb broadband infrared radiation and transform it into heat. A heat recovery mechanism, based on the Seebeck effect, is used as the tool of the investigation. Heat production challenges the current understanding which views the excitation of radiative polaritons as only accompanied by the emission of electromagnetic radiation. The heat recovery mechanism presented here can inspire the design of infrared energy harvesting devices, similar to photovoltaic cells, and other devices to convert energy from a wide range of the electromagnetic radiation spectrum using thermoelectric power …

"Spending The Day In Front Of The Mirror", Lauren Friedlander

Honors Papers

In this paper, I analyze the processes my group of collaborators and I underwent in direction, production, collaboration, acting, and writing in order to perform my original solo performance piece, JOHN.

Heterogeneous Gain Forecasting Using Historic Asset Information, Nicolas Sippl-Swezey

Honors Papers

Using historic return inputs in a stylized computational financial market, this paper explores how participant outcomes are affected by the degree to which their asset allocation behavior responds to new market information. Findings support the efficient market hypothesis in that no alternate trading rule shows consistent improved outcomes relative to a full market exposure buy-and-hold strategy over the given time period. The only exception occurs briefly at the bottom of the 2008 financial crisis. Market participants that drastically alter market exposure in response to volatile returns, however, do outperform those who alter their exposure less drastically. Furthermore, the trading rules …

Normal And Δ-Normal Configurations In Toric Algebra, Liam Solus

Honors Papers

Toric algebra is a field of study that lies at the intersection of algebra, geometry, and combinatorics. Thus, the algebraic properties of the toric ideal IA defined by the vector configuration A are often characterizable via the geometric and combinatorial properties of its corresponding toric variety and A, respectively. Here, we focus on the property of normality of A. A normal vector configuration defines the toric ideal of a normal toric variety. However, the definition of normality of A is based entirely on the algebraic structures associated with A without regard to any of its combinatorial properties. In this paper, …

Optimal Summer Camp Layout, Anthony Bonifonte

Honors Papers

Convex optimization is an important branch of operations research. It generalizes linear programming and offers powerful tools for modelling problems and discovering optimal solutions to real world problems. Mathematically it is an interesting topic because it ties together many branches: linear algebra, multivariable calculus, and numerical analysis, to name a few. Modelling a problem as a convex optimization problem can be challenging but offers many benefits. Algorithm design is critically important to ensure precision of solutions that solve with minimal computation power. From an engineering perspective it is also incredibly useful, since many more situations can be modeled than with …

Getting Ahead Or Left Behind? The Politics And Policy Of Education Reform In The United States, Anna Elisabeth Brown

Honors Papers

Are teacher characteristics a significant factor in student learning? If so, which characteristics are effective? An original analysis of reading test scores of 5,000 fourth graders across the United States confirmed the difficulties researchers face when measuring teacher quality; it appears to account for only small variations in scores. Given the complexity, first, of the politics of "teacher quality" and, second, the improvement of primary education in the U.S., I offer some modest recommendations.

Epistemic Closure, Peter Baumann

Philosophy Faculty Works

No abstract provided.

2011 Commencement Program, Seattle University

Commencement Programs

No abstract provided.

Pantherland 2011, Prairie View A&M University

Yearbooks

No abstract provided.

Disease, Medicine And Health, Diego Armus, A. López Denis

History Faculty Works

This article focuses on three overlapping trends in the historical study of human responses to illness, labeled as “new history of medicine, history of public health, and sociocultural history of disease.” The topics range from colonial epidemiology and pharmacopoeia to twentieth-century public health institutions and urban hygiene. But a consistent focus on the social, cultural, and symbolic components of diseases and cures unifies this historiography and distinguishes it from the narrower scope of the long-established field of the history of medicine.

Evidence For The Impact Of Reactive Oxygen Species On The Control Of Branching In Neurospora Crassa, Jacob Yablonowski, Alex Zapata, Michael Watters

Symposium on Research and Creative Expression (SORCE)

In preliminary screens, several functions, most notably, genes involved in the control of reactive oxygen species (ROS), were identified as playing a role in the process of growth rate compensation of branch density. The maintenance of branch density under growth at various temperatures was examined in a selection of mutants in genes known to be important in the control of ROS. In all ROS control mutants tested, growth was shown to branch tighter when grown at higher temperatures (which result in faster growth rates) and looser when grown at lower temperatures (which results in slower growth rates). This can be …

Intelligent Software For Ecological Building Design, Jens G. Pohl, Hisham Assal, Kym Jason Pohl

Architecture

Building design is a complex process because of the number of elements and issues involved and the number of relationships that exist among them. Adding sustainability issues to the list increases the complexity of design by an order of magnitude. There is a need for computer assistance to manage the increased complexity of design and to provide intelligent collaboration in formulating acceptable design solutions. Software development technology today offers opportunities to design and build an intelligent software system environment that can serve as a reliable intelligent partner to the human designer. In this paper the authors discuss the requirements for …

Dow Chemical Vs. ‘Coercive Utopians’: Constructing The Contested Ground Of Science And Government Regulation In 1970s America, Amy M. Hay

History Faculty Publications

In 1979, the Dow Chemical Company published an excerpt from a speech by H. Peter Metzger that announced an emerging conflict in American ideals and public policy. He stated that a new kind of individual inhabited Washington, people from the counterculture who were “coercive utopians” because they sought to achieve their agenda through covert actions and hoped to end the American free market economy. Following the 1962 publication of Rachel Carson’s Silent Spring and the subsequent banning of DDT in 1972, Dow and other chemical manufacturers fought to keep the regulatory climate favorable to industry. Dow found itself defending the …

95th Annual Meeting, 2011. Secretary's Report And Financial Statement, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Synthesis, Characterization, And Properties Of Homometallic Dinuclear Ruthenium Complex Containing Chloro-Phenanthroline And Bipyridine, A. A. Bhuiyan, S. Kudo

Journal of the Arkansas Academy of Science

This paper deals with the synthesis and spectroscopic investigation of homometallic dinuclear ruthenium(II) complex containing chlorophenanthroline and bipyridine ligands. This bimetallic ruthenium polypyridine complex may be useful for biological electron transfer studies. Heteroleptic ruthenium monomer complex Ru(bpy)2(Cl-phen) (where bpy = 2,2’-bipyridine and Cl-phen = 5-chloro- 1,10-phenanthroline) was prepared in a two step procedure previously developed in our laboratory. This monomer complex was used to prepare the ruthenium dimer complex, (bpy)2Ru(phen-phen)Ru(bpy)2, by utilizing the Ni-catalyzed coupling reaction. Both the complexes were purified by column chromatography. The identity and the integrity of the complexes were confirmed by elemental analysis as well as …

Flux Variation Of Cosmic Muons, N. Ramesh, M. Hawron, C. Martin, A. Bachri

Journal of the Arkansas Academy of Science

In the current paper, we analyzed the variation of cosmic radiation flux with elevation, time of the year and ambient temperature with the help of a portable cosmic muon detector, the construction of which was completed by a team from Southern Arkansas University (SAU) at Lawrence Berkeley National Laboratory (LBNL). Cosmic muons and gamma rays traverse two synchronized scintillators connected to two photomultiplier tubes (PMT) via light guides, and generate electronic pulses which we counted using a Data Acquisition Board (DAQ). Because muons are the product of collisions between high-energy cosmic rays and atmospheric nuclei, and therefore shower onto earth, …

Geographic Distribution And Life History Aspects Of The Freshwater Shrimps, Macrobranchium Ohione And Palaemonetes Kadiakensis (Decapoda: Palaemonidae), In Arkansas, H. W. Robison, C. T. Mcallister

Journal of the Arkansas Academy of Science

Two species of shrimps occur in Arkansas; they include the Ohio shrimp, Macrobrachium ohione (Smith) and the Mississippi grass shrimp, Palaemonetes kadiakensis Rathbun. The present survey is based on collections made between 1974 and 2008 with additional supplemental data from museum specimens to document the overall distribution of the 2 species. Our survey found a total of only 42 specimens of M. ohione from 6 localities (2 counties) in Arkansas, all taken from the Mississippi River. Specimens were seined over sandy substrates in 0.6-0.9 m of water without vegetation. A 1914 museum collection of 5 individual M. ohione is the …

The Fishes Of Crooked Creek (White River Drainage) In Northcentral Arkansas, With New Records And A List Of Species, H. W. Robison, C. T. Mcallister, K. E. Shirley

Journal of the Arkansas Academy of Science

A survey of the fishes of Crooked Creek, White River Drainage, in northcentral Arkansas was conducted using personal collections, historical records, literature records, and the Arkansas Fishes Database. The study revealed a total of 65 species of fishes distributed among 14 families. Earlier records of only 36 species in 10 families were documented. This study documents a total of 29 species and four families as new to the Crooked Creek stream system. In addition, no endangered or threatened species were collected

Title Of A Paper Prepared For The Arkansas Academy Of Science Journal [Instructions For Prospective Authors], Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Gvsu Press Releases, 2011, Grand Valley State University

University Press Releases, 1961-Present

A compilation of press releases for the year 2011 submitted by University Communications (formerly News & Information Services) to news agencies concerning the people, places, and events related to Grand Valley State University.

Phenomenology And The Rehabilitation Of Philosophy, Matthew J. Berrios

McNair Scholars Journal

Philosophy as the study of ultimate principles of knowledge, has been challenged recently in history by some of the intellectual forces in modernism and post-modernism. In response to this, the movement known as phenomenology has arisen to answer the objections posed by these two intellectual movements. As a movement, phenomenology was developed in the late nineteenth-century under the German mathematicianphilosopher Edmund Husserl as a response to the logical questions involved with some of the psychologistic systems of thought of the period that sought to reduce the rules and workings of logic to psychological processes of the human mind. However, because …

The Effect Of Cutting Force Model Coefficient Variability On Process Planning In Milling, Firat Eren

Master's Theses and Capstones

This thesis describes the effect of force model uncertainty on process planning. Specifically, the statistical variations in model predicted machining forces while cutting aluminum, carbon steel, stainless steel and titanium are determined. An accurate estimate of the variability is essential for use in process planning to determine appropriate factors of safety when setting cutting conditions that are both safe and efficient.

Force model coefficient calibration is described and the variability in the coefficients is determined through a least squares regression of a large number of experimental cuts. It is shown that the variability increases with changes in the calibration cutting …

2011-2012 Course Catalog, University Of Montana--Missoula. Office Of The Registrar

University of Montana Course Catalogs, 1895-2024

An annual catalog of courses and course descriptions offered at the University of Montana.