Digital Commons Network^™

Globally Hypoelliptic Systems Of Vector Fields On Nilmanifolds, Jacek M. Cygan, Leonard F. Richardson

Faculty Publications

We show that a system L of real vector fields on a general compact nilmanifold Γ{minus 45 degree rule};N induced by the Lie algebra N of N is globally hypoelliptic (GH) iff (1{ring operator}) The symbols of the vector fields of L projected onto the associated torus T = Γ[N, N]{minus 45 degree rule}N as functions on the integral lattice T ̂ collectively decrease at infinity not faster than a reciprocal of a polynomial and (2{ring operator}) the Lie subalgebra of N that L generates is not annihilated by any non-zero integral linear functional on any Nj Nj + 1, …

Integrated Semigroups And Their Applications To The Abstract Cauchy Problem, Frank Neubrander

Faculty Publications

This paper is concerned with characterizations of those linear, closed, but not necessarily densely defined operators A on a Banach space E with nonempty resolvent set for which the abstract Cauchy problem u′(t) = Au(t), u(0) = x has unique, exponentially bounded solutions for every initial value x ∈ D(An). Investigating these operators we are led to the class of "integrated semigroups". Among others, this class contains the classes of strongly continuous semigroups and cosine families and the class of exponentially bounded distribution semigroups. The given characterizations of the generators of these integrated semigroups unify and generalize the classical characterizations …

Semen Quality Characteristics Of Dairy Goats, J. E. Chandler, C. L. Painter, R. W. Adkison, M. A. Memon, P. G. Hoyt

Faculty Publications

Semen was collected, processed, and frozen from five dairy bucks for 2 successive yr for use in quality classification and evaluation for inclusion in artificial insemination programs. Semen was evaluated for volume, initial, postthaw and 37°C incubated percent progressive motility, percent postthaw 3-h 37°C incubated intact acrosomes, autoagglurination, whey-induced agglutination, and percent primary, secondary, and tertiary abnormalities. Significant high correlations were found between: percent progressive motility and percent intact acrosomes, percent intact acrosomes and percent autoagglutination, and percent autoagglutination and percent whey agglutination. Means of the postthaw quality parameters, percent progressive motility, precent intact acrosomes, and percent primary and secondary …

Protein Solubility, In Vitro Ammonia Concentration, And In Situ Disappearance Of Extruded Whole Cottonseed And Other Protein Sources, J. A. Stutts, W. A. Nipper, R. W. Adkinson, J. E. Chandler, A. S. Achacoso

Faculty Publications

Whole cottonseed extruded at temperatures (°C) and rates (kg/h) of 131, 314; 135, 182; 146, 195; and 156, 286 was evaluated by protein solubility, in vitro ammonia concentration, and in situ disappearance techniques. These techniques were used to estimate potential of extruded whole cottonseed for protein escape from the rumen. In addition, raw whole cottonseed, soybean meal, corn gluten meal, and whole cottonseed and soybean meal heated for 4 h at 127, 138, and 149°C were used for comparison. Solubility was by three methods: cold water mixed for 30 min, cold water homogenized for 5 s, and hot water refluxed …

Feminist Jurisprudence: Grounding The Theories, Patricia A. Cain

Faculty Publications

No abstract provided.

Does Altruism Produce Efficient Outcomes? Marshall Versus Kaldor, David D. Friedman

Faculty Publications

No abstract provided.

Expert Discovery In The Eighth Circuit, An Empirical Study, David Day

Faculty Publications

No abstract provided.

Book Review. Encyclopedia Of Asian History, Jo Bell Whitlatch

Faculty Publications

No abstract provided.

Explaining Policy Failure: Japan And The International Economy, 1969-1971, Robert C. Angel

Faculty Publications

This paper examines the determinants of Japan's most serious postwar blunder: failure to define and implement effective and timely countermeasures to deal with its change from deficit to surplus international monetary status during the 1969-1971 period. It concludes that intense bureaucratic compartmentalization and a lack of supra-ministerial leadership of national policy were key determinants of this failure, leaving Japan's political system dependent upon irresistible external pressure (gai-atsu), in this case from the United States, to define and force implementation of necessary policy changes. This critical but largely ignored episode illustrates a negative aspect of the traditional insulation of Japan's national …

Law Professor Trading Cards - Has Anyone Got A Monaghan For A Tribe, Paul A. Lebel

Faculty Publications

No abstract provided.

Appropriations Redux: A Critical Look At The Fiscal Year 1988 Continuing Resolution, Neal Devins

Faculty Publications

No abstract provided.

The Question Of Silence: Techniques To Ensure Full Class Participation, Stephanie M. Wildman

Faculty Publications

No abstract provided.

Withdrawal Of Life Support: Individual Autonomy Against Alleged State Interests In Preserving Life, Michelle Oberman

Faculty Publications

No abstract provided.

Teaching Feminist Legal Theory At Texas: Listening To Difference And Exploring Connections, Patricia A. Cain

Faculty Publications

No abstract provided.

The Role Of Intergovernmental Organizations In International Information Transfer And Policy, Robert V. Williams

Faculty Publications

https://www.sla.org/content/shop/speclibs.cfm ©1988 Special Libraries Association

Involutions On Banach Spaces And Reflexivity, S J. Dilworth

Faculty Publications

No abstract provided.

An Economic Understanding Of Copyright Law's Work-Made-For-Hire Doctrine, I. Trotter Hardy

Faculty Publications

No abstract provided.

A Field Method For Assessing Borehole Friction For Directional Well Casing, Eric E. Maidla, Andrew K. Wojtanowicz

Faculty Publications

A field procedure to evaluate the borehole friction factor between a pipe string and a borehole was developed. The primary concern of this research was to investigate and mathematically describe the drag associated with casing runs in directional wells through the use of the two-dimensional approach. The borehole friction factor was found, through an iterative procedure, by matching the calculated hook load to the measured one at the surface. The borehole friction factor was calculated as the unique value for the match. This study shows the necessary precision requirements for the hook load measurement instrumentation and presents three different types …

"Front-Running" - Insider Trading Under The Commodity Exchange Act, Jerry W. Markham

Faculty Publications

On ‘Black Monday,’ October 19, 1987, ‘perhaps the worst day in the history of U.S. equity markets,’ the Dow Jones Industrial Average fell by 508 points, representing a loss of approximately $1 trillion in the value of all outstanding United States stocks. In the wake of the crash, numerous studies were conducted and reports published in which a host of regulatory issues were considered, including a disturbing phenomenon called ‘front-running.’ Simply stated, the practice of front-running involves a transaction in a commodity futures contract or a stock option contract by a trader with ‘material’ nonpublic information concerning a ‘block’ transaction …

Electrochemical Production And Corrosion Testing Of Amorphous Ni-P, Jose L. Carbajal, Ralph E. White

Faculty Publications

Ni-P alloys were prepared by electrodeposition under different conditions on a rotating disk electrode. A variety of alloys were prepared ranging from Ni-15P to Ni-25P. An indirect reduction of species in solution involving several steps appears to be favored over the direct reduction at the electrode based on the low P content in the alloy. Energy dispersion x-ray microanalysis was used to determine composition of the alloy. Transmission electron microscopy and x-ray diffraction corroborated the amorphous nature of the structure. The physical and chemical homogeneity of the metallic glasses produced electrochemically is substantiated by the absence of electrochemical localized attack. …

The Maturation Of Public Relations Degree Programs--Ten Years In Retrospect: Struggles; Experiences And Analyses Of A Communication-Based Pr Program., Jon Hall, Pamela Edwards

Faculty Publications

This paper reviews the historical experience of a new public relations program housed in a speech communication department (rather than in a journalism department; which is traditional); discusses some of the internal and external struggles experienced in the implementation and administration of the program; and reports on the placement of its graduates. The program; at the University of Northern Iowa's (UNI) department of Communication and Theatre Arts; was implemented in 1978 after five years of planning. The program received support from the administration but faced problems because of its phenomenal growth. The paper describes this support and a number of …

Pretrial Discovery In The Law School Curriculum: An Analysis And A Suggested Approach, Edward D. Cavanagh

Faculty Publications

(Excerpt)

The topics of pretrial discovery and professional responsibility in the conduct of discovery are given short shrift in many law school classrooms. This is not to say that these topics are ignored by law schools; first-year students are typically acquainted with the concept of broad pretrial discovery in the federal system and the various disclosure tools provided by the Federal Rules of Civil Procedure. Nevertheless, the intricacies of discovery practice and ethics are learned on the job or through continuing legal education programs. Although law schools, in response to criticism by the bench and bar of the general level …

The Relevance Of Administrative Considerations In The Judicial Decisionmaking Process: A Kantian Perspective, Edward D. Cavanagh

Faculty Publications

(Excerpt)

This essay examines and analyzes the role of administrative considerations in the judicial decisionmaking process. The central issue is the extent to which administrative factors, such as concerns for efficiency, minimization of complexity, ease of proof, consistency of holdings, and predictability of future decisions, may be properly taken into account by courts in rendering decisions and weighed against rights granted under substantive law. Put another way, the question presented is: To what extent may a court invoke administrative considerations to reach a result different from what otherwise would be the just solution? The analysis will proceed in two steps. …

Oxygen Reduction On Silver In 6.5 Molar Caustic Soda Solution, Prosper K. Adanuvor, Ralph E. White

Faculty Publications

No abstract provided.

A Two-Dimensional Mathematical Model Of A Porous Lead Dioxide Electrode In A Lead-Acid Cell, E. C. Dimpault-Darcy, T. V. Nguyen, Ralph E. White

Faculty Publications

A two-dimensional mathematical model is presented for a lead dioxide electrode in a lead-acid cell. It is used to simulate the time dependent behavior of the electrode during discharge. The model contains six dependent variables: the concentration of the acid electrolyte, the porosity, the electrical potentials of the solid and solution phases, and the two directional components of the current density in the electrolyte. The effect of the electrode grid was included by varying the conductivity of the solid. Parameters such as electrode conductivity, electrode dimensions, and temperature are investigated to understand their effects on electrode discharge performance.

Secondary Current Distributions Using Topaz2d And Linear Kinetics, E. C. Dimpault-Darcy, Ralph E. White

Faculty Publications

Secondary current density distributions are of interest
to cell designers. The purpose of this note is to illustrate
how to use an existing numerical method to determine
these distributions for cells that contain conducting and
nonconducting bodies between the main anode and cathode.

Analysis Of Electrokinetic Data By Parameter Estimation And Model Discrimination Techniques, Prosper K. Adanuvor, Ralph E. White

Faculty Publications

An alternative approach to classical methods of electrochemical data analysis is presented. This alternative method is based on nonlinear parameter estimation and model discrimination techniques. The method is used to obtain the relevant kinetic and transport parameters and to elucidate the kinetic mechanism of O₂ reduction at carbon and silver electrodes in alkaline electrolytes.

A Mathematical Model For Predicting Cyclic Voltammograms Of Electronically Conductive Polypyrrole, Taewhan Yeu, Trung V. Nguyen, Ralph E. White

Faculty Publications

Polypyrrole is an attractive polymer for use as a high energy density secondary battery because of its potential as an inexpensive, lightweight, and noncorrosive electrode material. A mathematical model to simulate cyclic voltammograms for polypyrrole is presented here. The model is for a conductive porous electrode film on a rotating disk electrode (RDE) and is used to predict the spatial and time dependence of concentration, overpotential, and stored charge profiles within a polypyrrole film. The model includes both faradaic and capacitive charge components in the total current density expression.

Predicting Shunt Currents In Stacks Of Bipolar Plate Cells With Conducting Manifolds, H. S. Burney, Ralph E. White

Faculty Publications

A method is presented for predicting shunt currents in stacks of bipolar plate cells with conducting manifolds. The method is based on the requirement that the potential drop through the solution in a manifold be large enough to force current to leave the solution and to enter the conducting manifold. The current that leaves the solution in the manifold enters the conducting manifold at the anode end of the stack and returns to the solution at the cathode end. This could cause catastrophic failure of a manifold.

Oxygen Reduction On Silver In 6.5m Caustic Soda Solution, Prosper K. Adanuvor, Ralph E. White

Faculty Publications

The cathodic reduction of oxygen in 6.5M membrane-grade caustic soda solution has been studied experimentally at a silver rotating disk electrode at 25°C. The results can be approximated by the parallel mechanism for oxygen reduction with catalytic decomposition of peroxide. Further analysis of this mechanism indicates that the sequential process with catalytic decomposition of peroxide predominates over the direct 4e^– process. Direct application of the sequential mechanism to the data indicates that the latter mechanism with catalytic decomposition of peroxide much more accurately reflects the experimental results. The relevant kinetic parameters are calculated on the basis of …