Physical Sciences and Mathematics Commons^™

Scs 57: On The Duality Of Semilattices, Karl Heinrich Hofmann, Jimmie D. Lawson

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Dielectric Saturation In Dipolar Fluids. I. The Single-Molecule Distribution Function, John D. Ramshaw

Physics Faculty Publications and Presentations

The functional-derivative formalism is used to investigate the form of the equilibrium single-molecule distribution function n(1) in a finite fluid system of rigid polar molecules subjected to a strong external electric field that varies slowly with position. The investigation is based on the assumption that the long-range asymptotic behavior of the direct correlation function is independent of the external field, and is hence the same as in the unperturbed fluid. This assumption implies that n(1) has the form of a single-molecule Boltzmann factor in which the interaction energy is that of a deformable quasidipole with the local Lorentz electric field …

Geology Of The Eastern Part Of The Regina Quadrangle, Sandoval And Rio Arriba Counties, New Mexico, Margaret Anne Merrick

Earth and Planetary Sciences ETDs

The Regina quadrangle is located in Sandoval and Rio Arriba Counties, New Mexico, along the boundary between the northwestern margin of the Nacimiento uplift and the east-central San Juan Basin. The uplift is composed of a core of Precambrian rocks overlain by a veneer of Mississippian through Triassic sedimentary rocks. Sedimentary rocks ranging in age from Jurassic to Tertiary are upturned along the margin of the San Juan Basin.

The Precambrian rocks in the area are primarily granite to granodiorite gneiss with xenoliths of mafic and felsic metavolcanic rocks and metasedimentary rocks. These rocks have undergone greenschist facies metamorphism. Late …

Electrostatic Tem Studies Of Magnetic Domains In Thin Iron Films, Hideaki Karamon

Dissertations and Theses

An electron microscope with electrostatic lenses was used for high resolution studies of magnetic domains in thin iron films.

Observation methods used to determine the directions of local magnetization in iron thin films were the Lorentz method and the Foucault method.

We studied how Bloch line-crosstie pairs and crosstie main walls behave in applied, in-plane magnetic fields. We found that crosstie main walls remain unchanged until crosstie density goes nearly to zero when the field is applied perpendicular to the main wall. A twisted type of domain appears where crossties disappear.

Iron And Life, Thomas Emery

Faculty Honor Lectures

Iron, iron, everywhere but. . . . The plight of the ancient mariner surrounded by undrinkable water could hardly have been more frustrating than life on earth with respect to iron. Iron is the fourth most abundant element of the earth's surface, exceeded only by oxygen, silicon, and aluminum. Virtually all forms of life from the simplest bacteria to humans require iron to catalyze numerous and complex metabolic reactions. Because of the diversity and complexity of the role of iron in the life process, it has even been suggested that the origin of life on earth centered around the catalytic …

Volume 4, Number 11 (November 1980), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

Water Current, Volume 12, No. 6, November/December 1980

Water Current Newsletter

Proposal Deadline for OWRT Annual Cooperative Program
New Staff Addition
Legislative Record Available
General Guidelines Available
Water Resource Seminar Series
MRBC Launches Missouri River Flood Plain Study
Interim Study on Irrigated Western Farmlands Indicates Most Are Small Operations
Federal Water Resources Research Priorities
Research Review: Remotely Sensed Crop Temperatures for Water Resources Management

Determination Of The Total Grain Size Distribution In A Vulcanian Eruption Column, And Its Implications To Stratospheric Aerosol Perturbation, P. J. Murrow, William I. Rose, S. Self

Department of Geological and Mining Engineering and Sciences Publications

Grain size analysis of samples representing all sampleable portions of the airfall deposit produced by the Fuego volcano in Guatemala on 14 October 1974 form the basis for estimating the total grain size distribution of tephra from this eruption. The region enclosed by each isopach has a particular average grain size distribution which can be weighted proportionally to its percentage volume. The grain size of pyroclastic avalanche deposits produced during the eruption are also included. The total grain size distribution calculated as a sum of weighted distributions has a median grain size of 0.8∅ (0.6mm) and a sorting coefficient (σ∅) …

Tb101: The Relevance Of Option Value In Benefit-Cost Analysis, Stephen D. Reiling, Mark W. Anderson

Technical Bulletins

This publication represents a review and a critical re-evaluation of the literature dealing with option value. This literature is rich and dynamic and provides a fascinating sequence of articles, comments, and rebuttals. Reevaluation of the concept requires a rather comprehensive review of this literature, which is something that has not been provided to date. The literature review is also important because the work of some authors has been systematically overlooked in the course of the debate. As a result of this oversight, the original formulation of the concept continues to be cited in the literature even though its practical significance …

Soil Drainage---Effects On Crop Production, Kenneth L. Wells

Soil Science News and Views

One of the major physical properties of soil which is important to crop production is drainage through the rooting zone. This characteristic greatly influences aeration in the rooting zone, and the degree of aeration greatly influences several important biochemical reactions of economic importance to crop production.

On The Optimal Stopping Time Problem For Degenerate Diffusions, J. L. Menaldi

Mathematics Faculty Research Publications

In this paper we give a characterization of the optimal cost of a stopping time problem as the maximum solution of a variational inequality without coercivity. Some properties of continuity for the optimal cost are also given.

On The Optimal Impulse Control Problem For Degenerate Diffusions, J. L. Menaldi

Mathematics Faculty Research Publications

In this paper, we give a characterization of the optimal cost of an impulse control problem as the maximum solution of a quasi-variational inequality without assuming nondegeneracy. An estimate of the velocity of uniform convergence of the sequence of stopping time problems associated with the impulse control problem is given.

Polymer Science In Lodz, Poland, Otto Vogl, P. Kubisa

Otto Vogl

No abstract provided.

Geology Newsletter- 1980, Department Of Geology

Geological and Environmental Sciences News

Vol. 1. No. 5

• Dear Alumni and Friends
• Alumni News

The Probe, Issue 9 - November 1980

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
Cecil D. Andrus, lawsuit
All Together Now – Let’s Sue Andrus
desert tortoise
Treasury Reports
Ken Green of Avitrol Corporation has an article in PEST CONTROL
Black-footed ferret
A new social disease, "coyotitis"
The Brotherhood
Rats
Regulation Scoreboard: Government 80 : Taxpayer 0
Coleman Company has just introduced a little gadget
Ol’ Timer’s Corner: Walt Boehm, Virgil Parsons, Mark Worcester
NRA Hunting Annual
Wildlife Legislative Fund of America
Blueberries added to the list of fruits that can be sprayed with MESUROL
TRAPPING BENEFITS PEOPLE AND WILD ANIMALS
William D. Fitzwater

Introduction To The Configurable, Highly Parallel (Chip) Computer), Lawrence Snyder

Department of Computer Science Technical Reports

No abstract provided.

Existence And Uniqueness For A Variational Hyperbolic System Without Resonance, Peter W. Bates, Alfonso Castro

All HMC Faculty Publications and Research

In this paper, we study the existence of weak solutions of the problem

□u + ∇G(u) = f(t,x) ; (t,x) є Ω ≡ (0,π)x(0,π)

u(t,x) = 0 ; (t,x) є ∂Ω

where □ is the wave operator ∂²/∂t² - ∂²/∂x², G: Rⁿ→R is a function of class C² such that ∇G(0) = 0 and f:Ώ→R^n is a continuous function having first derivative with respect to t in (L₂,(Ω))ⁿ and satisfying

f(0,x) = f(π,x) = 0

for all x є [0,π].

An Abstract Model Of Unstratified Database System, Takayuki D. Kimura, Jerome R. Cox Jr., Will D. Gillett

All Computer Science and Engineering Research

A semantic data model is introduced with the following capabilities: (1) Abstraction mechanisms for aggregation, generalization and classification, (2) Unstratified control of the database content, (3) Refined control of intentional and extensional information, and (4) Extensive semantic consistency checking. The basic features of the model are illustrated through a scenario of interactions between the user and the database system (using the proposed model) for constructing a simple database on technical publications.

Remote Sensing Activities In Singapore, Y. J. Chong, A. C. Yeo, Thow Yick Liang

Research Collection Lee Kong Chian School Of Business

This paper will be primarily concerned with the application of satellite remote sensing in Singapore. Remote Sensing does not rank high in government priorities. It is carried out mainly at the National University of Singapore. Initially financial support came from only the University but now financial support also comes from the Ministry of Science and Technology.

Near-Bottom Seismic Profiling: High Lateral Variability, Anomalous Amplitudes, And Estimates Of Attenuation, R. C. Tyce, Larry A. Mayer, F. N. Spiess

Affiliate Scholarship

For almost a decade the Marine Physical Laboratory of Scripps Institution of Oceanography has been conducting near‐bottom geophysical surveys involving quantitative seismic profiling. Operating initially at 4 kHz and more recently at 6 kHz, this system has provided a wealth of fine scale quantitative data on the acoustic properties of ocean sediments. Over lateral distances of a few meters, 7‐dB changes in overall reflected energy as well as 10‐dB changes from individual reflectors have been observed. Anomalously high amplitudes from deep reflectors have been commonly observed, suggesting that multilayer interference is prevalent in records from such pulsed cw profilers. This …

Vegetative Community Descriptions For The North Platte River In Wyoming And Nebraska, Lynn Fisher

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

A description of the vegetative communities in an area will provide an insight to wildlife potential and use of that area. Wildlife and its corresponding habitat are recognized as important for recreation and to the overall environmental quality of an area. The Water and Power Resources Service, Lower Missouri Region, is presently engaged in a study of the Platte River Basin, including an evaluation of wildlife habitat and associated environmental needs. Quantification of wildlife habitat along the South Platte River has been completed. Vegetation communities were described and habitat maps were prepared from color infrared aerial photographs (scale – 1:24,000). …

Numerical Simulation Of Free Surface Thermally-Influenced Flows For Nonhomogeneous Fluids, Vincenzo Casulli

Mathematics Technical Papers

In this paper a finite difference technique is presented to simulate the behavior of natural water bodies under the influence of pollutants and temperature differences. The mathematical model which has been discretized is the closed system obtained by combining the Navier-Stokes equations, the heat transfer equation, the diffusion equations, and an equation relating fluid density to both the chemical concentration and the temperature. The numerical method is based on the Marker-and-Cell method which has been extended to consider the volume expansion due to heat transfer and the density variations.

Scs 56: On A Question Of O. Wyler, Karl Heinrich Hofmann, Klaus Keimel

Seminar on Continuity in Semilattices

Source: University archive of the Technische Universität Darmstadt.

Arkansas Wood Fuels: A Feasibility Study, Ralph O. Gunderson

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This report presents estimates of quantities and location of logging residues in Arkansas. Six sites are determined as potential fuel use sites for these residues. Estimates of the demand for wood fuel at these sites are made. The supply and demand for wood fuels are studied to determine the feasibility of utilizing logging residue as a fuel at these six locations in Arkansas.

Cogeneration Of Ethanol From I.C. Engine Powerplants: An Economical And Convenient Method To Supply Process Energy For Ethanol Production, Randall Noon

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

I.C. engine power plants have significant and suitable waste heat for the production of ethanol. Such power plants are often located in conjunction with cattle and grain producing areas, two of the important ingredients for ethanol production. Cogeneration of ethanol from I.C. engines will afford significant production of ethanol without requiring more fuel than is currently used.

Full Food And Fiber Production, James D. Atwood

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Included in the Natural Gas Policy Act of 1978 is a section which provides priority treatment for essential agricultural users. The applicability and importance of this Act in maintaining a viable agricultural base in this nation is developed.

Ratepayer Financing Of Solar Thermal Electric Commercial Demonstration Projects, Mark D. Jarmie, Jeff V. Conopask

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Commercialization of a new energy supply technology requires demonstration of its feasibility to potential customers at each staqe of development. While small improvements of proven energy supply svstems are usually privately pioneered, larger or more uniaue research projects are often delaved as economic and technical concerns are assuaged through public sector R&D funding. For solar thermal central receivers, even though their technical viability has been tested on a small scale, acceptance by utilities will require full-scale field experiments and commercial-sized demonstration plants.

Wood Fuels In Power Generation, Yildirim Omurtag, Larry Wetzel, Michael Mcevilly

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

In order for wood to be considered a feasible energy source for power generation, it must prove to be economical, meet society's pollution criteria, and provide sufficient energy to meet its regional demand applications or requirements. This report looks at wood's availability, its potential as a fuel source, the different methods of energy conversion, and lastly, submits conclusions and recommendations concerning wood-fueled power generation.

The information and background was supplied and supported by actual application, government publications and documentations, and other sources. The availability report includes living biomass, wood residues, and potential biomass expansion. Once availability was determined, the portion …

Rate Of Return Regulatory Policy -- The Bane Of Electric Utilities?, Charles David Laderoute

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

In the past,rate of return regulation served to the advantage of electric utility stockholders. Today this is no longer the case. Furthermore, owners cannot assume that utility management can or will work totally in their behalf. As a result, this paper presents as its main thesis that utility stockholders should band together into advocacy groups to support their right to a fair rate of return.

Pipeline Gathering System Operations Model, Mark E. Ryan

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

A computer model to aid in the analysis of pipeline gathering system operations has been developed. The model simulates the actual daily operation of the gathering system, on a task by task basis, taking into account terrain, climate, and facility breakdowns. The model can be used to project operating requirements for new systems or analyze problems in existing systems.