Digital Commons Network^™

Backfilling Canals To Restore Wetlands: Empirical Results In Coastal Louisiana, R. Eugene Turner, James M. Lee, Christopher Neill

Faculty Publications

Wetland restoration is largely a developing science and engineering enterprise. Analyses of results are too few and constrained to observations over a few years. We report here on the effectiveness of one restoration technique used sparsely in coastal Louisiana for several decades. Canals have been dredged in coastal Louisiana wetlands since 1938 for oil and gas exploration and extraction. These canals are typically dredged to 2.5 m depth and are 20 to 40 m wide. Canal lengths vary from 100 m to several 1000s m in the case of outer continental shelf pipeline canals that cross the wetlands.

Today, thousands …

The Hidden Ball: A Substantive Critique Of Baseball Metaphors In Judicial Opinions, Chad M. Oldfather

Faculty Publications

This article draws on literary and linguistic theory, as well as prior work studying the effects of metaphor in judicial opinions, to study the use of a specific type of metaphor - baseball metaphors - in judicial opinions. The article surveys several specific metaphors that have been recurrently used - including the judge as "umpire," "hit-and-run," and "three strikes and you're out" - and considers the ways in which the use of such metaphors might direct thought about the underlying subject matter in inappropriate directions.

Direct Simulation Monte Carlo For Thin Film Bearings, Alejandro Garcia, B. Alder, F. J. Alexander

Faculty Publications

The direct simulation Monte Carlo (DSMC) scheme is used to study the gas flow under a read/write head positioned nanometers above a moving disk drive platter (the slider bearing problem). In most cases, impressive agreement is found between the particle-based simulation and numerical solutions of the continuum hydrodynamic Reynolds equation which has been corrected for slip. However, at very high platter speeds the gas is far from equilibrium, and the load capacity for the slider bearing cannot be accurately computed from the hydrodynamic pressure.

Economic Performance - It's Only Part Of The Picture, Annette M. Nellen, K. Marucheck

Faculty Publications

No abstract provided.

Large-Scale Machine Translation: An Interlingua Approach, Deryle W. Lonsdale, Alexander M. Franz, John R. R. Leavitt

Faculty Publications

In this paper we discuss the design and development of an interlingua for a large-scale MT project. We also discuss how the resulting KANT interlingua constrains complexity, supports staged development, evolves in a balanced fashion, and seeks maximal coverage. We address issues such as granularity of the data representation, its specification, the types of information it encodes, and how it supports a modular system architecture. Our experience shows that through a careful, reasoned design and implementation effort, it is possible to achieve multilingual target-language generation for extensive technical domains.

An Economic Analysis Of The Potential For Coercion In Consent Solicitations For Bonds, Royce De R. Barondes

Faculty Publications

This Article examines why issuers frequently cannot present bondholders with an offer that draws on collective action problems to force the acceptance of the offer by the bondholders. The analysis is restricted to publicly offered bonds. For a number of reasons, privately placed debt presents fewer opportunities for coercion. A prior business relationship among various purchasers, which facilitates cooperation, may be more likely with respect to privately placed debt. Privately placed debt often has more significant protection for the bondholders than public debt with the same level of seniority

Maintaining Order In The Post-Strike Workplace: Employee Expression And The Scope Of Section 7, Lyrissa Lidsky

Faculty Publications

In the aftermath of a typical strike, management often seeks to restore order to the workplace by imposing restrictions on employee expression. Although in principle employee expression is protected by section 7 of the National Labor Relations Act, courts, relying on outdated notions of workplace organization, often accept ad hoc management justifications for restrictions on employee expression. The author argues that after a strike, it is crucial for employees to be able to express their grievances or vent their frustrations at exactly the same time that employers feel it necessary to restrict expression as a way of re-imposing order in …

Ligation Alters The Pathway Of Urea‐Induced Denaturation Of The Catalytic Trimer Of Escherichia Coli Aspartate Transcarbamylase, S. Bromberg, V. J. Licata, D. Mallikarachchi, N. M. Allewell

Faculty Publications

We have examined the pathway and energetics of urea‐induced dissociation and unfolding of the catalytic trimer (C3) of aspartate transcarbamylase from Escherichia coli at low temperature in the absence and presence of carbamyl phosphate (CP; a substrate), N‐(phosphonacetyl)‐L‐Asp (PALA; a bisubstrate analog), and 2 anionic inhibitors, Cl− and ATP, by analytical gel chromatography supplemented by activity assays and ultraviolet difference spectroscopy. In the absence of active‐site ligands and in the presence of ATP, c3 dissociates below 2 M urea into swollen c chains that then gradually unfold from 2 to 6 M urea with little apparent cooperativity. Linear extrapolation to …

Primary Decomposition Of Torsion R[X]-Modules, William A. Adkins

Faculty Publications

This paper is concerned with studying hereditary properties of primary decompositions of torsion R[X]-modules M which are torsion free as R-modules. Specifically, if an R[X]-submodule of M is pure as an R-submodule, then the primary decomposition of M determines a primary decomposition of the submodule. This is a generalization of the classical fact from linear algebra that a diagonalizable linear transformation on a vector space restricts to a diagonalizablc linear transformation of any invariant subspace. Additionally, primary decompositions are considered under direct sums and tensor product. © 1994, Hindawi Publishing Corporation. All rights reserved.

Nanovid Microscopy For Assessing Sperm Membrane Changes Induced By In Vitro Capacitating And Acrosomal Reacting Procedures, Suzanne D. Degelos, Michael P. Wilson, John E. Chandler

Faculty Publications

ABSTRACT: This study was to verify the usefulness of Nanovid microscopy techniques for evaluating induced modifications in bovine spermatozoal membranes. Frozen thawed bovine sperm were labeled with 20‐nm colloidal gold particles bound to concanavalin A (ConA) or heparin ligands. Sperm membrane changes were induced in vitro by capacitating and acrosome‐reacting procedures. Capacitatton was induced by incubation with 10 μg/ml of heparin for 4 hours at 37°C, 5% CO2, and high humidity. Membrane changes associated with the acrosome reaction were induced by addition of lysophosphatidyicholine (100 μg/ml) and incubation for 15 minutes at 37°C, 5% CO2, and high humidity. Gray intensity …

Several Considerations Regarding The Variable Length Blade Rotor, Bogdan Popescu, Victor Giurgiutiu

Faculty Publications

No abstract provided.

A Tribute To J. Timothy Philipps, Gerald F. Uelmen

Faculty Publications

No abstract provided.

Standards As Intellectual Property: An Economic Approach, David D. Friedman

Faculty Publications

No abstract provided.

A Punitive Damages Overview: Functions, Problems And Reform, David G. Owen

Faculty Publications

No abstract provided.

Use Of Underpotential Deposition Of Zinc To Mitigate Hydrogen Absorption Into Monel K500, G. Zheng, Branko N. Popov, Ralph E. White

Faculty Publications

Polarization experiments and a potentiostatic pulse technique have been used to show that a monolayer coverage of zinc effectively inhibits the absorption of hydrogen into Monel K500. By depositing a monolayer of zinc on Monel K500, the hydrogen evolution reaction and hydrogen ingress flux rate were reduced by 60%.

A Finite-Difference Method For Pseudo-Two-Dimensional Boundary Value Problems, Z. Mao, Ralph E. White

Faculty Publications

A finite-difference method is presented for solving pseudo-two-dimensional boundary-value problems. The sparse and nearly block tridiagonal properties of the matrices generated by using the finite-difference method for problems of this type are fully utilized and maintained, which yields a method that is highly efficient in the use of storage space and computation. An example shows that the central process unit time required by the method is significantly less than that required by an alternative method.

Tao Of Jurisprudence: Chaos, Brain Science, Synchronicity, And The Law, Thomas Geu

Faculty Publications

No abstract provided.

The Interstellar Relations Of The Federation: International Law And Star Trek: The Next Generation, Michael P. Scharf, Lawrence D. Roberts

Faculty Publications

A recent University of Toledo Law Review article concerning the legal issues
dealt with in the television series Star Trek: The Next Generation (STNG)
became an overnight national sensation. Given that, during its seven seasons of
first-run episodes; STNG had been the most popular syndicated series on
American television, it is perhaps not surprising that the article should engender
so much public attention. The article, written by law professors Paul Joseph and Sharon Carton of Nova Southeastern University Law School, was not intended as however. Rather, it was a serious examination of the way STNG United Federation of Planets dealt …

Effect Of Proton Diffusion, Electron Conductivity, And Charge-Transfer Resistance On Nickel Hydroxide Discharge Curves, John W. Weidner, Paul Timmerman

Faculty Publications

Constant-current discharge curves for the nickel hydroxide electrode are simulated assuming resistances due to diffusion of protons and conduction of electrons through the nickel hydroxide film, and charge-transfer resistance at the film/electrolyte interface contribute to the polarization losses of the electrode. Good qualitative agreement is observed between the model predictions and experimental discharge curves. The results suggest that polarization losses due to diffusional limitations of protons is a critical factor in determining the characteristics of the discharge curve. Ohmic resistance has a significant effect on the discharge curves at the end of discharge, and charge-transfer resistance is a minor contributor …

Theoretical Analysis Of The Discharge Performance Of A Niooh/H2 Cell, Z. Mao, P. De Vidts, Ralph E. White, John Newman

Faculty Publications

A mathematical model is presented for the discharge of a NiOOH/H₂ cell. This model includes diffusion and migration in the electrolyte phase as well as proton diffusion and ohmic drop across the solid active material in the porous nickelelectrode. A theoretical analysis of the cell performance is presented for different design parameters using this model. It is predicted that proton diffusion in the solid active material is the main factor in limiting the cell voltage and the utilizationof the active material. It is also predicted that use of a thick nickel electrode is an effective method for increasing electrode …

Thermal Characteristics Of A Nickel-Hydrogen Battery, Junbom Kim, T. V. Nguyen, Ralph E. White

Faculty Publications

The maximum allowable temperature difference inside a nickel-hydrogen battery to avoid water relocation was calculated by using a graphical method together with a vapor pressure vs. temperature correlation equation for water vapor over potassium hydroxide solution. An equation was developed for this maximum allowable temperature difference for vessel-wall temperatures from 0 to 30°C and potassium hydroxide concentrations from 20 to 32%. A heat-generation equation for the nickel-hydrogen battery was used to investigate the effect of the location of heat generation on the maximum temperature in the cell and the temperature distribution in the cell.

The Role Of Thallium As A Hydrogen Entry Promoter On Cathodically Polarized Hy-130 Steel, G. Zheng, Branko N. Popov, Ralph E. White

Faculty Publications

Hydrogen permeation experiments were carried out to investigate the effect of thallium on hydrogen entry into HY-130steel. These experiments show that the presence of thallium ions in an electrolyte drastically increase the hydrogen entry rate. The hydrogen entry efficiency and hydrogen surface coverage were increased by a factor of 10 and 6, respectively. In order to fit the permeation experimental data, the Iyer-Pickering-Zamanzadeh (I-P-Z) hydrogen permeation model was modified by including a mass-transfer term in the discharging equation. The relationship between hydrogen permeation and the hydrogen evolution reaction were investigated and new relationships were obtained.

Mommy Has A Blue Wheelchair: Recognizing The Parental Rights Of People With Disabilities, Michael Ashley Stein

Faculty Publications

No abstract provided.

Toward A Unified Theory Of Products Liability: Reviving The Causative Concept Of Legal Fault, Elizabeth Price Foley, Elizabeth C. Price

Faculty Publications

This paper explores the concept of "causative" fault – with an emphasis on proximate and actual cause – as a substitute for modern strict liability.

Development Of Strength Theories For Random Fiber Composites, Victor Giurgiutiu

Faculty Publications

A ressessment of existing theories for calculating the strength of random and quasi-random fiber composites is presented. Fundamental aspects regarding the physical model, macromechanics analysis, fiber distribution functions, generalized failure criterion, and progressive versus sudden failure models are covered first. Progressive ductile failure, progressive brittle failure, and sudden brittle failure are treated in detail. In each case, the original theory is briefly reviewed, and then its extensions accompanied by numerical examples are presented. Several limitations originally imposed by Hahn, such as the monotonically nonincreasing requirement on the failure strain curve, are lifted and the mathematical formulations are generalized. Some common …

A Report On The Assessment Procedures Used In The Evaluation Of Student Teaching At The Middle School Level, Joane W. Mckay

Faculty Publications

This conference paper on assessment of the qualities of student teachers in middle schools discusses the concepts of authentic assessment; continuous evaluation; the roles of the cooperating teacher and the university coordinator; and assessment procedures used at the University of Northern Iowa. Eleven categories are presented for use in determining; at mid-term of the student teaching experience; whether a student teacher is meeting the requirements to become an effective teacher. These are: knowledge of content and skills areas; knowledge of learners/learning process; use of instructional planning strategies; use of instructional strategies/teaching styles; use of management and discipline strategies; use of …

A Reasoned Interlingua For Knowledge-Based Machine Translation, Deryle W. Lonsdale, John R. R. Leavitt, Alexander M. Franz

Faculty Publications

Research in machine translation (MT) has resulted in a number of Machine Translation systems that are based on the interlingua approach. This paper reports the results of designing an interlingua for a large-scale, practical MT system designed to translate technical information from English into a number of target languages. After an analysis of the main features of the translation problem faced by this system we describe the principles underlying our design decisions. We address issues such as the design and development methodology, the grain size of the representation, and our efforts to endow the interlingua representation with the ability to …

The Impact Of Coal Pyrolysis On Combustion, Peter R. Solomon, Thomas H. Fletcher

Faculty Publications

The pyrolysis process has impacts throughout coal combustion. The roles of pyrolysis in various aspectsof the coal combustion process are described, including the devolatilization yield, nitrogen release, softening and swelling, soot formation, and char reactivity. These processes can be understood and quantitatively predicted using recently developed network pyrolysis models that describe the transformation of the coal's chemical structure. The models are described and examples of their predictive ability for important coal combustion phenomena are presented.

Evolving Consensus: The Dynamic Future Of Environmental Law And Policy, Ronald H. Rosenberg

Faculty Publications

No abstract provided.

Plate Motions In The North Andean Region, Jeffrey T. Freymueller, James N. Kellogg, Victor Vega

Faculty Publications

Repeated geodetic measurements with the Global Positioning System (GPS) provide direct measurements of displacements due to plate motions and active crustal deformation in Central America and northern South America, an area of complex interaction of the Nazca, Cocos, Caribbean and South American plates. The displacement rates for the period 1988-1991, obtained from the results of the first three Central And South America (CASA) GPS campaigns, are in general agreement with the predictions of the NUVEL-1 plate motion model, but there are differences in detail between the observations and the model. The Nazca-North Andes convergence rate vector measured by GPS is …