Physical Sciences and Mathematics Commons^™

Investigations Into The Etiology Of Ulcerative Lesions In Atlantic Menhaden, Brevoortia Tyrannus, Raemarie Ann Johnson

Dissertations, Theses, and Masters Projects

No abstract provided.

Agmaps Land Manager Cd-Rom For The Albany Eastern Hinterland., Tim D. Overheu, Angela Stuart-Street, Ron Master

Agmaps

This CD-ROM contains land resource maps and land management information relevant for the Albany Eastern Hinterland catchment appraisal, 2003. It was produced by the Department of Agriculture. Also included on the CD is technical information which may now be out of date.

Agmaps Land Profiler Cd-Rom. Shires Of Capel, Busselton & Augusta-Margaret River, Peter J. Tille, Dennis Van Gool, Ian Kininmonth, Phil M. Goulding

Agmaps

This CD-ROM contains land resource maps and land management information relevant for the shires of Capel, Busselton & Augusta-Margaret River. It was produced by the Department of Agriculture. Also included on the CD is a lot of technical information which may now be out of date.

Socioeconomic Effects Of Area Management And The Potential For Community-Based Co-Management: A Case Study Of The Atlantic Sea Scallop Fishery, Winifred L. Ryan

Dissertations, Theses, and Masters Projects

Community concerns regarding natural resource management may be addressed in several forms. The community may participate as part of the public in the management process; community concerns may be included in social impact assessment; and communities may directly participate as managers of resources whether on their own or in conjunction with higher levels of government. In fisheries, typically community concerns are addressed through social impact assessment which is perceived to be lacking in social theory, history, and often effect (Boggs 1994, Little and Krannich 1989). More recent activity and newer regulations show success with co-management, a management regime of shared …

Polycyclic Aromatic Hydrocarbon Sources And Distribution In An Urban Estuary, Shelby E. Walker

Dissertations, Theses, and Masters Projects

As part of the assessment of the potential risk posed by contaminated sediments to the environment and human health, the United States Environmental Protection Agency (USEPA) is developing a set of sediment quality criteria (SQC) that are based on equilibrium partitioning (EqP). While EqP theory has often been used to predict contaminant concentrations within a factor of two for a range of sediment types, substantial deviations from predicted values have also been documented. The objective of this research was to evaluate the influence of PAH source on PAH sediment-pore water partitioning and distribution in sediments. The Elizabeth River is one …

Multinuclear Nmr Studies Of Relaxor Ferroelectrics, Donghua Zhou

Dissertations, Theses, and Masters Projects

Multinuclear NMR of 93Nb, 45Sc, and 207Pb has been carried out to study the structure, disorder, and dynamics of a series of important solid solutions: perovskite relaxor ferroelectric materials (1-x) Pb(Mg1/3Nb 2/3)O3-x Pb(Sc1/2Nb1/2)O 3 (PMN-PSN).;93Nb NMR investigations of the local structure and cation order/disorder are presented as a function of PSN concentration, x. The superb fidelity and accuracy of 3QMAS allows us to make clear and consistent assignments of spectral intensities to the 28 possible nearest B-site neighbor (nBn) configurations, (NMg, NSc, NNb), where each number ranges from 0 to 6 and their sum is 6. For most of the …

Magnetohydrodynamic Turbulence: The Development Of Lattice Boltzmann Methods For Dissipative Systems, Angus Ian Duncan Macnab

Dissertations, Theses, and Masters Projects

Computer simulations of complex phenomena have become an invaluable tool for scientists in all disciplines. These simulations serve as a tool both for theorists attempting to test the validity of new theories and for experimentalists wishing to obtain a framework for the design of new experiments. Lattice Boltzmann Methods (LBM) provide a kinetic simulation technique for solving systems governed by non-linear conservation equations. Direct LBMs use the linearized single time relaxation form of the Boltzmann equation to temporally evolve particle distribution functions on a discrete spatial lattice. We will begin with a development of LBMs from basic kinetic theory and …

Time-Resolved Optical Studies Of Colossal Magnetoresistance And Charge -Density Wave Materials, Yuhang Ren

Dissertations, Theses, and Masters Projects

This thesis presents measurements of collective modes and ultrafast carrier relaxation dynamics in charge-density-wave (CDW) conductors and colossal magnetoresistance (CMR) manganites. A femtosecond laser pump pulse excites a broad frequency spectrum of low-energy collective modes and electron-hole pairs thereby changing its optical properties. The low-energy collective excitations and quasiparticle relaxation and recombination processes are monitored by measuring the resulting photoinduced absorption as a function of probe pulse wavelength and time delay.;A general model was developed for the photogeneration and detection mechanism of collective modes based on light absorption in two-color pump-probe experiments. A broad spectrum of collective modes (phasons and …

Power Considerations For Memory-Related Microarchitecture Designs, Zhichun Zhu

Dissertations, Theses, and Masters Projects

The fast performance improvement of computer systems in the last decade comes with the consistent increase on power consumption. In recent years, power dissipation is becoming a design constraint even for high-performance systems. Higher power dissipation means higher packaging and cooling cost, and lower reliability. This Ph.D. dissertation will investigate several memory-related design and optimization issues of general-purpose computer microarchitectures, aiming at reducing the power consumption without sacrificing the performance. The memory system consumes a large percentage of the system's power. In addition, its behavior affects the processor power consumption significantly. In this dissertation, we propose two schemes to address …

Transport Analysis In Polymeric Liquids And Films: Investigations In Ionic Mobility Isolation Techniques And Permeability Control, Julia D. Warner

Dissertations, Theses, and Masters Projects

An in situ measurement technique that isolates the mobility of charge carriers is described and analyzed. The technique allows significant improvement over conductivity measurements to monitor changes in the physical properties and state of a material as it cures. This is essential in systems where Ni, the number of charge carriers, cannot be assumed constant such as during cure of epoxies, urethanes and polyimides.;Currently, there is an assumption made in the literature that the number of charge carriers present in a curing material is constant when conductivity is used as an in situ measurement technique to monitor changes in mobility. …

Agent Chameleons: Agent Minds And Bodies, Brian Duffy, Gregory O'Hare, Alan Martin, John Bradley, Bianca Schoen-Phelan

Conference papers

Agent design has to date concerned itself with the issues pertaining to a single body embedded in a single environment, whether virtual or real. This paper discusses the notion of an agent capable of migrating between information spaces (physical worlds, virtual reality, and digital information spaces). An architecture is presented that facilitates agent migration and mutation within such environments. This will in turn support agent

evolution the ultimate in agent adaptivity

Silica Supported Copper Complexes And Their Biomimetic Activities, Jun Wang

Dissertations, Theses, and Masters Projects

No abstract provided.

Mechanistic Studies On Chlorinated Polymeric Systems, Jing Zhang

Dissertations, Theses, and Masters Projects

No abstract provided.

Net Surface Flux Budget Over Tropical Oceans Estimated From The Tropical Rainfall Measuring Mission (Trmm), Tai-Fang Fan

Dissertations, Theses, and Masters Projects

No abstract provided.

A Drop In The Bucket: Collective Efficacy Perceptions Affect Waste Minimising Behaviours, Leesa N. Bonniface

Theses: Doctorates and Masters

The goal of this thesis was to inform a social marketing effort designed to increase environmentally friendly behaviours in an effort to ensure a more sustainable future. This study attempted to gain a better understanding of the discrepancy that exists between pro-environmental concerns and pro-environmental actions by exploring efficacy perceptions. Efficacy beliefs were compared for three groups of individuals: 1) environmentally active/members of an environmental group; 2) environmentally active/not members of an environmental group; 3) environmentally inactive and not members of an environmental group. Six focus groups were conducted and interviewees were recruited from the Earth Carers' organisation and the …

Tracks In The Woods: Identifying And Evaluating Historic Logging Railroad Systems Within The Mt. Baker-Snoqualmie National Forest, Carol Taylor Hearne

All Master's Theses

The Sauk River Lumber Company (SRLC) operated in western Washington's Sauk River valley between 1922 and 1954. Impacts made on the landscape during that time can still be identified. Archival research, oral history interviews and archaeological fieldwork were undertaken to identify and evaluate the many landscape features associated with the SRLC's timber harvest activities. The systematic identification and documentation of this single company's logging operations and the features that resulted from those operations can be used to assist cultural resource managers facing the same task elsewhere. Maps, diagrams, and photographs are included to provide resource managers with basic tools and …

Wavelet-Based Simulation Of Geological Variables, T. T. Tran

Theses: Doctorates and Masters

This thesis introduces a number of conditional simulation algorithms using wavelet bases. These make use of two orthogonal wavelet bases, the Haar and the Db2 bases. Firstly, two single-level algorithms are introduced, HSIM: with the Haar basis and DB2SIM with the Db2 basis. HSIM reproduces the histogram and semivariogram model of isotropic samples but not the semivariogrnm model of anisotropic samples. DB2SIM reproduces the histogram and semivariogram model in both the isotropic and anisotropic cases but, because of the conditioning method employed, is not as computationally efficient as we would wish. Because of the limitations of HSIM and Db2SIM two …

Developing A Catalogue Of Errors And Evaluating Its Impact On Software Development, Indrit Troshani

Theses: Doctorates and Masters

The development of quality software is of paramount importance, yet this has been and continues to be an elusive goal for software engineers. Delivered software often fails due to errors that are injected during its development. Correcting these errors early in the development or preventing them altogether can, therefore, be considered as one way to improve software quality. In this thesis, the development of a Catalogue of Errors is described. Field studies with senior software engineering students are used to confirm that developers using the Catalogue of Errors commit fewer errors in their development artifacts. The impact of the Catalogue …

Long Term Permanent Vegetation Plot Studies In The Matoaka Woods, Williamsburg, Virginia : Establishment And Initial Data Analysis Of Plots Established With The North Carolina Vegetation Survey Protocol, Resampling Of Single Circular Plots And A Comparison Of Results From North Carolina Vegetation Survey Protocol And Single Circular Plot Methods, Jacob Robert George Kribel

Dissertations, Theses, and Masters Projects

No abstract provided.

Distribution, Abundance, And Home Range Of The Whip-Poor-Will (Caprimulgus Vociferus) In A Managed Forest Landscape, Michael Daniel Wilson

Dissertations, Theses, and Masters Projects

No abstract provided.

Use Of Ponds And Lakes By Resident Canada Geese, Phillip D. West

Dissertations, Theses, and Masters Projects

No abstract provided.

Anisotropic Ice Flow Leading To The Onset Of Ice Stream D, West Antarctica: Numerical Modelling Based On The Observations From Byrd Station Borehole, Weili Wang, H. Jay Zwally, Christina L. Hulbe, Martin J. Siegert, Ian R. Joughin

Geology Faculty Publications and Presentations

An ice-sheet flowline model is used to simulate the flow of ice along two particle paths toward the onset to Ice Stream D,West Antarctica. One path is near the centre line of the main tributary to the ice stream, while the second passes by the Byrd Station borehole site. In this paper, we analyze the flow of the moderately fast-flowing tributaries in terms of ice-fabric anisotropy and estimate the steady-state ice-flow regions with the compatible developed crystal orientation fabrics along two particle paths. Comparison between modelled isochrones and internal layers detected from radio-echo sounding surveys in the area is used …

Center For Coastal Resources Management Annual Report 2002, Center For Coastal Resources Management

Reports

No abstract provided.

Virginia Game Fish Tagging Program Annual Report 2002, John A. Lucy, C.M. Bain Iii

Reports

The Virginia Game Fish Tagging Program (VGFTP), in its eighth year during 2002, systematically trains and assists anglers in tagging a select number of species important to Virginia's marine recreational fishery and maintains the resulting tagging database. A cooperative project of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science (VIMS), the program is primarily funded with revenues from Virginia's saltwater recreational fishing license funds (Recreational Fishing Development Fund). In addition, support for the program is provided by Virginia's Sea Grant Marine Advisory Program at VIMS.

Quantifying Ecosystem Geomorphology Of The Southern Appalachian Mountains, Scott R. Abella

Public Policy and Leadership Faculty Publications

Geomorphology is a dominant factor influencing vegetation distribution in the southern Appalachians, and quantifying landform characteristics is increasingly important for forest ecosystem classification. This study used slope gradient and two previously published geomorphic indices, terrain shape index and landform index that quantify landform shape and protection, to develop a field-based landform quantification system at four study areas in the southern Appalachians. Six major landform types (ridgetops, nose slopes, linear hillslopes, coves, stream ravines, and stream bottoms) exhibited quantitatively different characteristics, and these differences among landforms were not evident when using only categorical landform descriptions (e.g., convex, concave) that have been …

Annual Inflow Of Water To Nebraska And Annual Outflow Of Water From Nebraska, 1950 - 2003, S. E. Summerside, W. Myers, S. Olafsen-Lackey

Conservation and Survey Division

No abstract provided.

2003 Changes To Water Transfer Law In Nebraska- Addendum, J. Michael Jess

Conservation and Survey Division

No abstract provided.

Butler County Test Hole Logs, Scott E. Summerside, Raymond R. Burchett

Conservation and Survey Division

No abstract provided.

Furnas County Test Hole Logs, Frank A. Smith

Conservation and Survey Division

No abstract provided.

Lancaster County Test Hole Logs, Raymond R. Burchett, Frank A. Smith

Conservation and Survey Division

No abstract provided.