Digital Commons Network^™

Mathematical Modeling For The Discharge Of A Metal Hydride Electrode, Pauline De Vidts, Javier Delgado, Ralph E. White

Faculty Publications

No abstract provided.

Electrochemical Determination Of The Diffusion Coefficient Of Hydrogen Through An Lani4.25Al0.75 Electrode In Alkaline Aqueous Solution, G. Zheng, Branko N. Popov, Ralph E. White

Faculty Publications

Theconstant potential and constant current discharge techniques were used todetermine the hydrogen diffusion coefficients in an LaNi_4.25Al_0.75 electrode. The valuesobtained were 2.97 × 10^–11 and 3.30 × 10^–11 cm²/s, respectively. The advantages and disadvantages of these two techniques are discussed.

The Effect Of Current And Nickel Nitrate Concentration On The Deposition Of Nickel Hydroxide Films, Christopher C. Streinz, Andrew P. Hartman, Sathya Motupally, John W. Weidner

Faculty Publications

An electrochemical quartz crystal nanobalance (EQCN) has been utilized to measure the mass of Ni(OH)₂ films electrochemically deposited from Ni(NO₃)₂ solutions. The objective of this work was to quantify electrochemical deposition as a function of deposition conditions. The changing mass recorded on the EQCN was demonstrated to be the result of Ni(OH)₂ deposition. Deposited mass was observed to increase proportionally with applied charge as suggested by previous investigators. Most significantly, the rate of deposition was found to decrease more than an order of magnitude as the Ni(NO₃)₂ concentration increased from 0.2 to …

Proton Diffusion In Nickel Hydroxide Films: Measurement Of The Diffusion Coefficient As A Function Of State Of Charge, Sathya Motupally, Christopher C. Streinz, John W. Weidner

Faculty Publications

Electrochemical impedance spectroscopy (EIS) was used to measure the solid-state diffusion coefficient of protons in nickel hydroxide films at room temperature as a function of state of charge (SOC). A model for the complex faradaic impedance of the nickel hydroxide active material is presented and used to extract the diffusion coefficient of protons from the EIS data. Impedance data over a range of frequencies can be used to extract a constant diffusion coefficient without the knowledge of the initial mobile proton concentration or the form of the charge-transfer kinetic expression. The proton diffusion coefficient is a strong function of SOC …

A Boundary-Layer Model Of A Parallel-Plate Electrochemical Reactor For The Destruction Of Nitrates And Nitrites In Alkaline Waste Solutions, Shailesh Prasad, John W. Weidner, Andrew E. Farell

Faculty Publications

Electrochemical processes appear to be attractive for treating low level nuclear wastes. The development of a simple divided electrochemical-cell model operating in a batch mode, used for the reduction of nitrates and nitrites from nuclear wastes, is presented. This model, based on a boundary-layer approach, is simple and yet encompasses the key features of a previously developed distributed-parameter model that includes diffusion, migration, and convection as the flux components. Because it dramatically reduces computation time, this boundary-layer model is well suited for use in a complex interactive flowsheet model and for optimization studies. The boundary-layer model is used to predict …

The Effect Of Temperature And Ethanol On The Deposition Of Nickel Hydroxide Films, Christopher C. Streinz, Sathya Motupally, John W. Weidner

Faculty Publications

The objective of this work was to determine the effect of the temperature and the ethanol content of the Ni(NO₃)₂ solution on: (i) the efficiency of electrochemical deposition of nickel hydroxide; and (ii) the molecular weight of the deposited film. An electrochemical quartz crystal nanobalance (EQCN) was used to measure the mass of films electrochemically deposited from Ni(NO₃)₂ solutions and constant current discharges were used to determine the electrochemical capacity of the films. The data indicates that increasing the temperature increases both the efficiency of the deposition reaction and the …

Electrowinning Of Non-Noble Metals With Simultaneous Hydrogen Evolution At Flow-Through Porous Electrodes I. Theoretical, Mahmoud M. Saleh, John W. Weidner, Badr G. Ateya

Faculty Publications

A mathematical model is developed to simulate the electrowinning of non-noble metals (e.g., Zn, Cr) within flow-through porous electrodes under the conditions of simultaneous evolution of hydrogen gas bubbles. The results of the model are presented as a function of several dimensionless groups representing kinetics, mass transfer, ohmic resistance, and gas bubbles. These coupled, nonlinear effects are investigated by examining the distributions of the metal reduction and hydrogen evolution currents, coulombic efficiency of the metal electrowinning reaction, and gas void fractions under a series of limiting conditions. The gas bubbles accentuate the nonuniform distribution of the potential and …

A Parallel-Plate Electrochemical Reactor Model For The Destruction Of Nitrate And Nitrite In Alkaline Waste Solutions, D. H. Coleman, Ralph E. White, D. T. Hobbs

Faculty Publications

A parallel-plate electrochemical reactor model with multiple reactions at both electrodes and anolyte and catholyte recirculation tanks was modeled for the electrochemical destruction of nitrate and nitrite species in an alkaline solution. The model can be used to predict electrochemical reaction current efficiencies and outlet concentrations of species from the reactor, given inlet feed conditions and cell operating conditions. Also, predictions are made for off-gas composition and liquid-phase composition in the recirculation tanks. The results of case studies at different applied potentials are shown here. At lower applied potentials, the model predictions show that the destruction process is more energy …

Electrochemical Determination Of The Diffusion Coefficient Of Hydrogen Through An Lani4.25Al0.75 Electrode In Alkaline Aqueous Solution, G. Zheng, Branko N. Popov, Ralph E. White

Faculty Publications

The constant potential and constant current discharge techniques were used to determine the hydrogen diffusion coefficients in an LaNi_4.25Al_0.75 electrode. The values obtained were 2.97 × 10^–11 and 3.30 × 10^–11 cm²/s, respectively. The advantages and disadvantages of these two techniques are discussed.

The Domestic Relations Exception To Federal Jurisdiction: Rethinking An Unsettled Federal Courts Doctrine, Michael Ashley Stein

Faculty Publications

No abstract provided.

Quechua Texts Of Perception, Janis B. Nuckolls

Faculty Publications

Recent work by anthropologists, folklorists, and semioticians has made significant strides in our understanding of the dynamics and poetics of spoken utterances. Such work has been motivated, generally, by the goal of understanding verbal expression in terms of its own unique structures and expressive modalities. The following paper will contribute to this line of inquiry. It offers an analysis of a form of expression, sound symbolism, that is widely used by people whose languages have not been written down. The main advantage of this analysis is that it rescues sound symbolism from the irrational abyss into which it has often …

Self-Regulation In Global Electronic Markets Through Reinvigorated Trade Usages, Raj Bhala

Faculty Publications

In a global electronic market the role of trade usages must be reinvigorated to better suit the needs of market participants. Contrary to the approach to trade usages often adopted by courts and scholars, usages should not be seen as merely a device to interpret disputed terms in a contract. Rather, they should be viewed as a legal foundation for existing and new trade practices and, therefore, as a source of authority for and legal obligation arising from such practices. In sum, they should be regarded as a means by which participants in global eiectronic markets can engage in self-regulation. …

Rethinking Future Advance Mortgages: A Brief For The Restatement Approach, Dale A. Whitman, Grant S. Nelson

Faculty Publications

The advantages of such arrangements, under which the mortgagor takes none or only a portion of the loan at the outset but receives the balance in the future, are substantial. The mortgagor saves interest on the unadvanced portion until it is needed and avoids the need to invest this portion at an interest rate that at least equals the rate being paid to the lender. Moreover, both parties avoid the expense and paperwork inherent in refinancing the initial loan or in executing a series of junior mortgages to secure each advance. Finally, in the construction loan context, before committing large …

The Contemporary Confucian-Christian Encounter: Interreligious Or Intrareligious Dialogue, Christian Jochim

Faculty Publications

The discipline of comparative religions has paid little attention to perhaps the most important religious phenomenon of the late twentieth century: interreligious dialogue. Available scholarship on this topic is largely written by and for participants in various dialogues. This scholarship is mainly on the normative issues that concern participants, thus leaving the need for descriptive, analytical scholarship largely unfilled. This essay engages in descriptive analysis of a relatively new twentieth-century dialogue—the Confucian-Christian dialogue—which, nevertheless, has deep historical roots. The essay turns, first, to history, summarizing two different periods of past Confucian-Christian encounter: the period from Matteo Ricci (1552–1610) to the …

Students As Experts: Tapping The Cultural/Linguistic Diversity Of The Classroom, B Kumaravadivelu, Bean, Lowenberg

Faculty Publications

No abstract provided.

Second Language Acquisition: Socio-Cultural And Linguistic Aspects Of English In India, B Kumaravadivelu

Faculty Publications

No abstract provided.

The Non-Impact Of The United States Supreme Court Regulatory Takings Cases On The State Courts: Does The Supreme Court Really Matter?, Ronald H. Rosenberg

Faculty Publications

No abstract provided.

The Evolution Of American Probate Courts And Emerging Standards To Guide Their Progress, Thomas L. Hafemeister, Paula Hannaford-Agor

Faculty Publications

Courts with probate jurisdiction are an excellent example of the evolu­tion of American courts. Despite the fact that they are direct descendants of the English judicial system, the structure, jurisdiction, and procedures of the probate courts assumed a uniquely American flavor soon after their initial establishment in the colonies. From the beginning, American probate courts have shown considerable diversity from state to state. State courts exercising probate jurisdiction have continued to evolve over time in response to the various demands placed upon them. This article describes the historical evolution of American courts exer­cising jurisdiction over probate matters, with specific attention …

Intramural Reforms: How The U.S. Courts Of Appeals Have Helped Themselves, Thomas E. Baker

Faculty Publications

No abstract provided.

New Optical Cell Design For Laser Flash Photolysis Studies In Supercritical Fluids, Steven R. Goates, Milton L. Lee, Qin Ji, Edward M. Eyring, Rudi Van Eldik, Kedika Bal Reddy

Faculty Publications

A high-pressure optical cell has been designed that achieves an effective separation between the chemical sample and the pressurizing medium and system. This design limits possible sample contamination and catalytic effects under supercritical fluid sample conditions. Laser flash photolysis experiments were carried out on molybdenum hexacarbonyl dissolved in supercritical CO2. The thermal ring closure reaction of the species Mo(CO)5L, where L is 2,2- bipyridine was found to proceed at rates comparable to those measured previously in liquid benzene or toluene. Much larger activation volumes were found for the reaction in supercritical CO2 than in liquid toluene.

Using Spiritual Interventions In Psychotherapy: Practices, Successes, Failures, And Ethical Concerns Of Mormon Psychotherapists, P. Scott Richards, Richard W. Potts

Faculty Publications

Two hundred and fifteen (out of 300) randomly selected Mormon psychotherapists were surveyed and asked to indicate how frequently they use various spiritual interventions in psychotherapy and to describe successful and unsuccessful spiritual intervention case examples. The therapists indi- cated that they use a wide variety of spiritual interventions, including praying silently for clients, teaching spiritual concepts, encouraging forgiveness, and using the religious community as a sup- port. Many spiritual interventions were perceived by the therapists as potentially therapeutic. Pro- cess guidelines for using spiritual interventions were offered by the therapists, and ethical concerns (e.g., dual relationships, imposing values) were …

Organizing Tax Instruction: Evidence Regarding The Way Students Organize Tax Knowledge, Stephen T. Limberg, Michael S. Schadewald, Brian C. Spilker

Faculty Publications

An important part of accounting curriculum reform is a movement away from traditional methods of organizing accounting courses toward improved organization schemes. Two basic approaches to organizing the content of tax courses are a transaction-based scheme and an entity-based scheme. This paper reports the results of an experiment that investigates which scheme is more consistent with how incoming masters in tax students organize tax knowledge and how different schemes affect the manner in which graduating students organize tax knowledge. Ninety students drawn from two full-time masters in taxation programs participated in the study. Subjects individually completed three separate tasks that …

Miss Dickinson And Perverse Pubescent Prurience, Chris Crowe

Faculty Publications

Right then, sound, time, and my heart stopped while Lexi and I were transported to another dimension at the center of the universe.

Partial Pixels: A Three-Dimensional Diffractive Display Architecture, Gregory P. Nordin, M. W. Jones, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Parker

Faculty Publications

We describe in detail the partial pixel architecture that permits the realization of three-dimensional (3-D) displays that are functionally equivalent to a real-time holographic stereogram. This architecture permits the simultaneous presentation of multiple stereoscopic images so that motion parallax is discernible in the resultant 3-D scene. The key innovation of the architecture is that each pixel is subdivided into partial pixels, which in turn can be implemented as individual diffraction gratings. We describe a static display that exhibits a 3-D image with one-dimensional motion parallax, thereby demonstrating key features of the architecture. A variety of partial pixel implementations are discussed …

Using Multiple Statistical Prototypes To Classify Continuously Valued Data, Tony R. Martinez, Dan A. Ventura

Faculty Publications

Multiple Statistical Prototypes (MSP) is a modification of a standard minimum distance classification scheme that generates muItiple prototypes per class using a modified greedy heuristic. Empirical comparison of MSP with other well-known learning algorithms shows MSP to be a robust algorithm that uses a very simple premise to produce good generalization and achieve parsimonious hypothesis representation.

Waterjet Cutting Of Cross-Linked Glass, Fang Yuan, John A. Johnson, David D. Allred, Robert H. Todd

Faculty Publications

The cutting of cross-linked glasses such as silica and Corning 7059 can be difficult. We conducted an experimental study to determine the feasibility of using a high-speed waterjet to cut thin Corning 7095 glass. Cutting using either pure de-ionized high pressure water at 380 MPa (55 000 psi) or de-ionized water with entrained garnet abrasive was studied. The roughness of the cut surfaces was measured and compared. Photomicrographs were taken of glass examples cut at different traversing rates with pure water and with the abrasive entrained waterjet. Comparative studies of cutting with and without the entrained abrasive material showed that …

Mentors: Keys To Survival And Growth, Chris Crowe

Faculty Publications

My diploma proved I knew English; my teaching certificate proved I knew how to teach it. Armed only with these and a head filled with idealistic visions of myself as the next Mr. Chips, I landed my first teaching job. As a mid-year graduate, I was lucky to flnd any high school job, so I jumped at the first, and only, offer. I started work on January 3, taking over for an established teacher who at mid-term had gone on permanent disability leave.

Basic Marketing Concepts For Forest And Conservation Nurseries, Brian J. Hill

Faculty Publications

Basic marketing concepts can be useful for forest and conservation nurseries especially as they transition into self-sustaining financial situations. These basic marketing concepts include marketing orientation, marketing plan development, market research, target marketing, SWOT analysis, marketing mix, promotional mix, and advertising mix. These concepts are explained and applied to forest and conservation nurseries.

Building A Sustainable World Through Tourism, Deirdre Gibbons, Brian Hill, Steve Illum, Turgut Var

Faculty Publications

The theme of trees and Peace Parks was common to this second global conference on Building a Sustainable World Through Tourism held in Montreal, Canada, in September 1994. The opening ceremony included a tree planting ceremony on top of Montreal's Mont Royal.

The objectives of the conference were to seek participation from over 80 countries; present 200 international success stories related to how tourism contributed to sustainable development; share ideas leading to a specific proposal for action, especially in regards to a millennium project; form International Institute for Peace Through Tourism (IIPT) as a membership organization; and reunite and celebrate …

Intensive Voice Treatment In Parkinson Disease: Laryngostroboscopic Findings, Christopher Dromey, Marshall E. Smith, Lorraine Olson Ramig, Kathe S. Perez, Raz Samandari

Faculty Publications

Summary: As part of ongoing research to investigate and document the efficacy of intensive voice therapy to improve functional communication in patients with idiopathic Parkinson disease, 45 patients were enrolled in a controlled, randomized, prospective study. Pre- to posttreatment comparisons are presented here on 22 of those patients who underwent laryngeal imaging examination. Of the 22 patients, 13 patients received intensive therapy aimed at increasing vocal and respiratory effort (VR), whereas nine received intensive therapy aimed at increasing respiratory effort (R) only. All patients had a pretreatment evaluation that included two (but sometimes only one) voice recordings and an otolaryngologic …