Digital Commons Network^™

The National Invasive Species Act Of 1996: An Assessment Of Current Statutes And Potential Changes And Improvements For Future Legislation Regarding Ballast Water Discharge And Prevention Of Invasion By Non-Indigenous Species, Alison P. Armstrong

Open Access Master's Theses

Ninety-five percent of consumer goods used in the United States reach the markets by way of vessel transport. Each of these vessels carries ballast water, and with it, exotic organisms from ports around the world that can threaten native ecosystems.

A survey (n=10) conducted to gather perceptions on existing ballast water legislation shows that those state and federal agencies who are involved agree on certain aspects of the issue, but there are broad areas of dissent regarding other aspects. Policy actors do feel that this issue must be regulated, however, an agreement on how to reach the goals of ballast …

The Relationship Between Teachers' Theoretical Orientations To Reading And Their Verbal Feedback To Students During Oral Reading, Kathleen A. Swann

Open Access Dissertations

This study examined the link between theory and practice as evidenced in the relationship between teachers' beliefs and the decisions they make during instruction. It is embedded within research on teacher change during times of educational reform (Cuban, 1993; Darling-Hammond, 1997; Sarason, 1996) and in reading theory (Shannon, 1992). The specific role of belief in the change process is unclear (Guskey, 1986; Richardson, 1990). Beliefs were explored through the construct of theoretical orientation (blend of teachers' beliefs and knowledge) to reading. Decisions were observed through the verbal feedback teachers gave during oral reading instruction. The study was designed to triangulate …

Study Of Particle Deposition In Human Airway Models, Guosen Yue

Open Access Dissertations

In this dissertation, the deposition of particles in human airway models is studied. The dissertation consists of three parts: In the first part, an analytical model of particle nasal airway deposition by diffusion considering effects of both laminar and turbulent flows is proposed. It appears in the literature that neither laminar nor turbulent analytical models alone works well for the entire range of diffusion parameters. A simplified turbulent particle diffusion equation is first developed and then a new combined turbulent/laminar diffusion model is proposed. The results predicted from the new model show improved accuracy when compared with available experimental data …

Indium Tin Oxide Thin Film Strain Gages For Use At Elevated Temperatures, Qing Luo

Open Access Dissertations

A robust ceramic thin film strain gage based on indium-tin-oxide (ITO) has been developed for static and dynamic strain measurements in advanced propulsion systems at temperatures up to 1400°C. These thin film sensors are ideally suited for in-situ strain measurement in harsh environments such as those encountered in the hot sections of gas turbine engines. A novel self-compensation scheme was developed using thin film platinum resistors placed in series with the active strain element (ITO) to minimize the thermal effect of strain or apparent strain. A mathematical model as well as design rules were developed for the self-compensated circuitry using …

Synthesis Of Conducting Polymer Complexes, Patrick Allen Mccarthy

Open Access Dissertations

Conducting polymers are notorious for being difficult to process. Here, we describe syntheses, purification, and characterization of water-soluble double-stranded complexes containing conducting polymers. We describe the synthesis of a water-soluble double-stranded complex containing chiral polyaniline and poly (acrylic acid). We also describe the synthesis of a water-soluble double-stranded complex containing polypyrrole and poly (acrylic acid). Finally, we describe the synthesis of a water-soluble double-stranded complex containing polypyrrole and poly (acrylic acid) with an unusually high polypyrrole loading.

Enhancing Micro-Organism Images By Estimating Image Background, Delong Liu

Open Access Dissertations

One- and two-dimensional techniques are proposed for enhancing micro-organism images using linear least-squares fitting, median filtering combined with bicubic approximation and wavelet filtering, respectively. The quality of enhanced images with pixel dimensions of 1200 x 1600 is examined from their corresponding binary images. It shows that one-dimensional modeling requires much less computation but provides relatively low quality output. On the other hand, the two-dimensional approximations for non-uniform lighting background, using both bicubic spline and wavelet filtering, are more effective and yield very high quality binary images tested with three different grayscale images.

Using Jpeg2000 Compressed Images For Foveated Texture Mapping In Limited Memory Environments, Timothy Michael Henry

Open Access Dissertations

Despite advances in hardware technology and software rendering algorithms, there remain several limitations that force design trade-offs in virtual environments and visualization systems, such as the decision between increased level of detail, scene rendering time and the storage size of an object or virtual world. If an application involves the Internet or another restricted bandwidth transmission environment, the amount of data necessary to communicate a high level of detail becomes an even more critical parameter. Texture mapping and light mapping are used to increase the realism of a scene without increasing the geometric complexity. The cost for these methods is …

Numerical Modeling Of Estuarine Transport, Water Quality, And The Impact Of Shrimp Mariculture In The Rio Chone Estuary, Ecuador, Diana Lynn Stram

Open Access Dissertations

The Rio Chone estuary in Ecuador has been heavily impacted by a range of anthropogenic impacts, particularly the conversion of mangrove forests to shrimp mariculture ponds. The combination of seasonal river flow, climate forcing and the influx of highly saline pond effluents have created a slow circulation regime in the estuary, especially during the dry season when the estuary can undergo a salinity inversion from mouth to head. Both shrimp production and water quality in the estuary have declined, specifically in the upper regions of the estuary where low dissolved oxygen is often a problem. A combined physical and biological …

The Effects Of The Intensity Of Conflict And Commitment On Marketing Channel Partnership Survival, Elizabeth F. Purinton

Open Access Dissertations

The survival of marketing channel partnerships is important to both the buyer and the seller. Dissolution would entail loss of sales and partnership-specific assets, and would require outlay of time, money and effort to find and invest in a new partnership. Unfortunately for both practitioners and academicians, little is known about the maintenance and dissolution of partnerships despite the call for research put forth by Frazier (1983, 1999), Dwyer, Schurr and Oh (1987), and Ping (1993). The intent of this paper is to examine several relationships within partnership dynamics. First, are the roles of commitment and conflict and their potential …

Effect Of Grid Non-Orthogonality On The Solution Of Shallow Water Equations Using Boundary-Fitted Grids, Sankaranarayanan Subbayya

Open Access Dissertations

Effect of grid orthogonality on the solution of two-dimensional depth averaged shallow water equations is studied by comparing model predictions using different grid configurations with analytical solutions, for the cases of tidal forcing in a rectangular channel and seiche oscillation in a closed rectangular basin. The grid angle and grid resolution were found to affect accuracy of the model predicted velocities. Fourier analysis of the discretized equations also confirmed that grid angle and the grid resolution affects the accuracy of the solution and that the numerical dispersion increases with a decrease in grid angle or decrease in grid resolution. The …

A Synthetic Approach To Forecasting Fleet Costs And Earnings In The Northeast Regions Of The United States, Philippe D. Lallemand

Open Access Dissertations

This study describes the New England Otter Trawl Fishery between 1982 and 1998 and the potential economic impacts of regulations on the Northeastern Multispecies Groundfish Fishery (MGF). The study uses primary data collected by the author and secondary data obtained from the National Marine Fisheries Service (NMFS). This research required extensive econometric analysis of both value landed and cost data. The landed value is influenced by the vessel's physical characteristics, port of landing, seasonal choices of fishing gear-species combinations, days at sea and distance from shore, and the captain's skill (also referred to as the "skipper effect"). The vessel-cost model …

Hazardous Waste Management: A View From The States, Melissa Armbrister

All Volumes (2001-2008)

Clearly, hazardous waste management represents a formidable task for policy makers at all levels of government. Of course, eliminating waste requires facilities for disposal; this is perhaps the most controversial aspect of the hazardous waste management debate. At the local level, counties and municipalities are routinely engaged in battles in which they are trying to impose these unwanted facilities on their neighbors. The state is often forced to step in and play a central role in resolving the conflict. Over the last several decades, several authors have sought to determine to what degree of importance the public places on improving …

Design, Synthesis And Antimicrobial Activity Of Novel Antimicrobial Peptides, Khaled Elsaid

Open Access Master's Theses

In the past decade, a large number of naturally occuring thiazole and oxazole-containing peptides have been isolated from microbial and marine origins. These peptides exhibit important antimicrobial, antiviral, and anticancer activities. Solid phase synthesis of peptides provides the methods to prepare and investigate novel compounds for possible use as antibiotics. Three combinatorial peptide libraries, library 1, an enantiomeric peptide library, library 2, with guanidinium, thiazole and benzothiophene side chains and library 3, designed from a template natural product, microcin Bl 7, were tested against Vibrio anguillarum (wild type), Escherichia coli (ZK 4) and Saccharomyces cerevisiae in zone …

Deceptive Trade Practices - Consumer Protection Act, A. Michael Ferrill, Leslie Sara Hyman

SMU Law Review

No abstract provided.

Oral History Interview With Dick Hedger, Philip Frana

Selected Works

Richard Hedger begins the interview describing his education in electrical engineering at the University of Minnesota. Following graduation he accepted a position at IBM Rochester in the optical character recognition group. He then discusses his shift to software development. Eventually he joined the Service and Support group developing application software supporting facilities infrastructures for the IBM System/3, and System/360. In various places in the interview, he describes some of the programming techniques in ...

Tolerance: Between Forbearance And Acceptance, Hans Oberdiek

Philosophy Faculty Works

No abstract provided.

Is Competition Policy Possible In High Tech Markets: An Inquiry Into Antitrust, Intellectual Property, And Broadband Regulation As Applied To The New Economy ?, Lawrence A. Sullivan

Case Western Reserve Law Review

No abstract provided.

Korea Deposit Insurance Corporation Annual Report 2001, Korea Deposit Insurance Corporation (Kdic)

Documents

No abstract provided.

Department Of Surgery 2001-2001 Annual Report Yale University School Of Medicine / Yale-New Haven Medical Center, Yale School Of Medicine Department Of Surgery

Yale Department of Surgery Bulletins

Annual report for 2001-2002.

Gibbons And Reed Company V. City Of Ogden, Utah, Utah State Road Commission, Oscar A. Robin, Hardy Scales Co. : Brief Of Respondent, Utah Supreme Court

Utah Supreme Court Briefs (2000–2020)

Respondent, City of Ogden, Utah's Brief

Iverson V. O\'Brien : Brief Of Respondent, Utah Supreme Court

Utah Supreme Court Briefs (2000–2020)

No abstract provided.

State Of Utah V. Farhad Soroushirn : Brief Of Appellant, Utah Supreme Court

Utah Supreme Court Briefs (2000–2020)

APPEAL FROM THE JUDGMENT OF THE SECOND JUDICIAL DISTRICT COURT, IN AND FOR WEBER COUNTY, STATE OF UTAH, THE HONORABLE JOHN F. WAHLQUIST, .JUDGE PRESIDING.

The East Greenwich Greenway Plan: A Strategy For The Commons, Greg S. Harris

Open Access Master's Theses

This Greenway Plan has been prepared in response to increasing development pressure and a heightened local awareness of the need to conserve East Greenwich's open spaces, protect natural resources and water supplies, increase opportunities for passive outdoor recreation, and protect the town's historic rural and scenic characteristics. Changes are recommended to the Zoning Ordinance and the Development and Subdivision Review Regulations that will enhance the town's ability to preserve open space, including farms and ecologically significant corridors, and to incorporate interconnected trail networks between new subdivisions. Rapid changes to the town's character caused by residential growth have led to escalating …

85th Annual Meeting, 2001. Secretary's Report And Financial Statement, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Journal Of The Arkansas Academy Of Science - Volume 55 2001, Academy Editors

Journal of the Arkansas Academy of Science

No abstract provided.

Geologic Hazards Associated With Shale Strata And Swelling Clays Within Fayetteville Quadrangle, Washington County, Arkansas, Maria E. King, Jack T. King, Stephen K. Boss

Journal of the Arkansas Academy of Science

No abstract provided.

Distribution Of Leconte's Free-Tailed Bat (Tadarida Brasiliensis Cynocephala) In Arkansas, With Notes On Reproduction And Natural History, David A. Saugey, D. Blake Sasse, J. D. Wilhide, Drew Reed, Tammy R. Jones, Darrell R. Heath, Daniel R. England

Journal of the Arkansas Academy of Science

During the past 20 years (1982-2001) we have studied the biology, occurrence and distribution of LeConte's (Brazilian) free-tailed bat, Tadarida brasiliensis cynocephala, in Arkansas. Colonies and individuals were reported from man made structures only. Four new county records have been documented since 1988, extending the range from the central part of the state to Arkansas's northern-most tier of counties. Numerous nuisance maternity colonies were investigated during exclusion activities and one, year-round colony provided the majority of reproductive data. A total of 152 free-tailed bats was submitted to the Arkansas Department of Health Rabies Laboratory (1982-2001); most during February through April, …

Middle-Ear Function With Tympanic-Membrane Perforations. I. Measurements And Mechanisms, Susan E. Voss, John J. Rosowski, Saumil N. Merchant, William T. Peake

Engineering: Faculty Publications

Sound transmission through ears with tympanic-membrane ~TM! perforations is not well understood. Here, measurements on human-cadaver ears are reported that describe sound transmission through the middle ear with experimentally produced perforations, which range from 0.5 to 5.0 mm in diameter. Three response variables were measured with acoustic stimulation at the TM: stapes velocity, middle-ear cavity sound pressure, and acoustic impedance at the TM. The stapes-velocity measurements show that perforations cause frequency-dependent losses; at low frequencies losses are largest and increase as perforation size increases. Measurements of middle-ear cavity pressure coupled with the stapes-velocity measurements indicate that the dominant mechanism for …

Clare Jarecki: Premier Tool And Die Man, Gordon L. Olson

Grand Valley Reports and Histories

Biography of Michigan entrepreneur Clare Jarecki. Jarecki provided funding for the Fred M. Keller Engineering Laboratories Building at Grand Valley.

Leslie E. Tassell: Fun-Loving Entrepreneur, Grand Valley State University, Gordon L. Olson

Grand Valley Reports and Histories

Biography of Michigan entrepreneur Leslie E. Tassell. Tassell provided funding for the Fred M. Keller Engineering Laboratories Building and the Engineering programs at Grand Valley.