Physical Sciences and Mathematics Commons^™

Management Model For Pine Voles: Preliminary Report, John F. Coyle, Alan R. Tipton

Eastern Pine and Meadow Vole Symposia

The use of computer models in scientific research has grown by leaps and bounds in the past decade. One of the primary reasons for this growth is the increased realization that computers and more specifically computer models, can be useful tools in synthe¬sizing large amounts of information and providing insight into problem areas of research and management.

Numerous books and papers have been written on the justification for modeling, the philosophy of modeling, and model development and utilization. Recent reviews of small mammal population models are given by Conley and Nichols (1978) and Stenseth (1977). This paper will not address …

An Experimental Monitoring And Advisory Service In Orchard Vole Control, Don W. Hayne, William T. Sullivan Jr.

Eastern Pine and Meadow Vole Symposia

The North Carolina integrated, pest and. orchard, management project (IPOMS) has moved, from the data-gathering phase into an experimental information delivery system. We present here for possible comment the •written directions for vole monitoring that we prepared, for use by the orchard, specialists who will implement the monitoring and advisory system.

IPOMS started, in 1976 as a joint effort of a number of subject matter departments under the North Carolina Agricultural Research Service. A brief description of this cooperative effort of horticulturists, entomologists, plant pathologists, economists, zoologists and soil and weed. scientists has been presented to this group (Hayne 1978). …

Volume 4, Number 2 (February 1980), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

The Probe, Issue 4 - February 1980

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
THE SECRETARY'S DECISION
Interior Goal No. 1
CEQ Recommendation
NADCA Response
Interior Goal No. 2
Interior Goal No. 3
Interior Goal No. 4
Interior Goal No. 5
Interior Goal Mo. 6
Interior Restriction No. 1
Interior Restriction No. 3
Interior Restriction Mo, 2
Interior Restriction No. 4
Interior Research Directives No. 1
Interior Research Directive No. 2
Interior Research Directive No. 3
Interior Research Directive No. 4
Interior Proposed Budget
NADCA Animal Damage Control Program Recommendations
SEE WHAT THE PUBLIC THINKS OF ADC?

Low Contention Semaphores And Ready Lists, Peter J. Denning, T. Don Dennis, Jeffrey Brumfield

Department of Computer Science Technical Reports

No abstract provided.

Programming With Recursion, Dirk Siefkes

Department of Computer Science Technical Reports

No abstract provided.

Monthly Planet, 1980, February, Brian Blix, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.

Four-Color And Hβ Photometry Of Stars In The Galactic Cluster Ngc 6087, Edward G. Schmidt

Edward Schmidt Publications

Four-color and Hβ photometry has been obtained for 16 stars in the open cluster NGC 6087. Based on this photometry the membership of these stars in the cluster is discussed. Using stars which appear to be members a color excess of E(b – y) = 0^m.23 and a distance modulus of (V₀ – M_v) = 9^m.60 are derived. This distance modulus is about 0^m.4 less than previous values and indicates a lower luminosity for the Cepheid member, S Nor, than is currently accepted.

An Environmental Study Of The Origin, Distribution, And Bioaccumulation Of Selenium In Kentucky And Barkley Lakes, B. E. Mcclellan, Kenneth J. Frazer

KWRRI Research Reports

Many samples of water, bottom sediment, and fish were analyzed for toxic metal ion content. The samples were collected from several selected sites along Kentucky and Barkley Lakes as well as the Cumberland River and several sub-impoundments along these aquatic systems. Emphasis was placed on selenium, although several other metal ions were determined. The results showed that there are no serious pollution problems with As, Cd, Cr, Cu, Hg, Pb, Se, Sr, Zn, or Zr at any of the sites examined. Actually, none of the trace metals examined even come close to the EPA limits on fish, with the exception …

Normalizations Of Thermodynamic Properties And Some Implications For Graphical And Analytical Problems In Petrology, John B. Brady, James H. Stout

Geosciences: Faculty Publications

Petrologic problems may be analyzed using any of a variety of possible choices of units. Although gram-formula units (moles) are commonly used, other units of quantity arc more appropriate for many applications. Gram-atom units offer the numerical simplicity of gram-formula units and have the advantage of being conserva­tive. A conservative unit of quantity is one for which the sum of the units of reactants equals the sum of the units of products in a chemical reaction. For many graphical problems, a conservative unit of quantity, such as gram-atom or mass units, should be used. Since gram-formula units are not conservative, …

On The Mechanical Properties Of A1.20% Si Splat Cooled Alloy, Ahmed Wahid Tewfik

Archived Theses and Dissertations

No abstract provided.

Quasi-Solutions And Monotone Method For Systems Of Nonlinear Boundary Value Problems, A. S. Vatsala, V. Lakshmikantham

Mathematics Technical Papers

In the study of comparison theorems, existence of extremal solutions and monotone iterative techniques for initial and boundary value problems of ordinary differential systems, it becomes necessary to impose a condition generally known as quasi-monotone property [1,3,5]. In systems which represent physical situations such as a model governing the combustion of a material, quasi-monotonicity is not satisfied, see [4]. However a kind of mixed monotone property holds. To deal with such situations the notion of quasi-solutions was systematically developed in [4]. In this paper, we investigate monotone iterative method for systems of nonlinear boundary value problems when the system possesses …

Quasi-Solutions, Vector Lyapunov Functions And Monotone Method, S. Leela, V. Lakshmikantham, M. N. Oguztoreli

Mathematics Technical Papers

It is now well known that the method of vector Lyapunov functions provides an effective tool to investigate the properties of large scale interconnected dynamical and control systems. [3,4,5,11-15]. Several Lyapunov functions result in a natural way in the study of such systems by the decomposition and aggregation method [1-4,12-14]. However an unpleasant fact in this approach is the requirement of quasi-monotone property on the comparison system since comparison systems with a desired property like stability exist without satisfying quasi-monotone property. Also in the study of comparison theorems and extremal solutions for differential systems one usually imposes this quasi-monotone property. …

Compensatory Response Of Maturing Corn Kernels Following Simulated Damage By Birds, Paul P. Woronecki, Robert A. Stehn, Richard A. Dolbeer

United States Department of Agriculture Wildlife Services: Staff Publications

(1) A study was made to measure compensatory growth responses and to estimate losses associated with bird damage to maturing corn.
(2) Corn kernels contain 20-40% of their final biomass at the time they are usually consumed by blackbirds.
(3) Very slight compensation of kernel weight occurred following simulated bird damage to tip kernels.
(4) Heavy bird damage, early in kernel development, increased fungal, sprouting, and insect damage before harvest.
(5) Estimates of bird damage, subsequent secondary damage, and compensation were affected by the amount of damage, maturity of the kernels at the time of damage, and environmental factors before, …

Purification, Growth, Structure, Optical And Electrical Properties Of Single Crystals Of The Π-Molecular Complex Of Phenothiazine With Pyromellitic Dianhydride, R. Anthonj , N. Karl, Beverly E. Robertson, John J. Stezowski

John J. Stezowski Publications

Single crystals of the black phenothiazine : pyromellitic dianhydride (PTZ:PMDA) 1:1 donor–acceptor complex, have been grown by sublimation from the zone-refined components. The PTZ:PMDA complex crystalizes with PĪ symmetry (Z = 2), a = 7.197(1), b = 19.072(5), c = 6.886(1) Å, α = 84.79(1) °, β = 72.98(1) °, γ = 85.72(2) ° at T = 23 °C. The crystal structure model was refined with 5214 data { (sin ζ/λ)_max = 0.8071 Å^–1} to give R = 0.049 and R_w = 0.089. The crystal packing consists of two polar endless ...DADA... stacks related to …

Using The Purdue Procsy Terminal System (Pascal), Bob Brown

Department of Computer Science Technical Reports

No abstract provided.

Using The Purdue Procsy Terminal System (Fortran), Bob Brown

Department of Computer Science Technical Reports

No abstract provided.

The Ferc's Purpa Cogeneration Rules: Economics, Rate Design, And Policy Aspects, Charles David Laderoute

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

Nearly two years have passed since the United States Congress enacted and the President signed into law the so-called National Energy Act which was actually comprised of five separate acts:

(1) Public Utility Regulatory Policies Act (PURPA)
(2) Powerplant and Industrial Fuel Use Act (FUA)
(3) Natural Gas Policy Act (NGPA)
(4) Energy Tax Act (ETA)
(5) National Energy Conservation Policy Act (NECPA)

Title II of PURPA addresses, inter alia, the issue of cogeneration: a technology that in recent years has received increasing attention as a method of utilizing our energy sources more efficiently. The first four of the above …

The Economics And Adaptation Of Microwave Heating & Cooling, Tom Day

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

From cooking potatoes to medical surgery, the microwave is causing an interesting and beneficial transition in our daily lives. High technology is producing an avalanche of microwave appliances and equipment which offer favorable results in energy conservation with impressive safety parameters at competitive costs. This paper examines the basis for the comparative economic benefit from microwave applications and sights several commercial and industrial avenues of conservation metit.

Embedding Discrete Flows On R In A Continuous Flow, P. L. Sharma, Troy L. Hicks

Mathematics and Statistics Faculty Research & Creative Works

The problem of determining when a given discrete flow on a topological space is embeddable in some continuous flow was mentioned by G. R. Sell ("Topological Dynamics and Ordinary Differential Equations," Van Nostrand, New York, 1971) in his book on topological dynamics. In this book, the theory of generalized dynamical systems is exploited in the qualitative study of differential equations. Even more complicated is the problem of simultaneously embedding two or more discrete flows in a single continuous flow. We examine both of these problems when the underlying topological space is the space R of the real numbers. © 1980.

Tolerance Intervals For A Class Of Ifr Distributions With A Threshold Parameter, Jagdish K. Patel

Mathematics and Statistics Faculty Research & Creative Works

One-sided upper and lower tolerance intervals based on type II censored data are obtained. Under certain conditions the tolerance factors can be obtained from known results on the 2-parameter exponential distribution. Copyright © 1980 by the Institute of Electrical and Electronics Engineers, Inc.

Water Current, Volume 12, No. 1, January/February 1980

Water Current Newsletter

Annual Report, Nebraska Water Resources Center
Water Planner Hired
Water Resources Seminar Schedule Change
Second Water Data Conference
Engineering Short Course at UNL
New Edition of Publication No. 7
Nation-Wide Conservation Program
Unified National Program for Floodplain Management
NSF Research Program in Appropriate Technology
Research Review: The Biological Regulation of Bloom-Causing Blue-Green Algae: A Feasible Alternative

An Empirical Bayes Approach To Polynomial Regression Under Order Restrictions, Leonard W. Deaton

Statistics

An unknown polynomial is to be estimated over a finite interval from N independent, normally distributed observations. A prior distribution is placed on the polynomial coefficients expressing the opinion that the coefficients decrease in absolute value as the degree of the corresponding terms increase. The data are used to estimate the parameters in the prior distribution of the coefficients. A Monte Carlo study is presented which compares the proposed method with the lack-of-fit procedure. This study indicates that the proposed method performs well in terms of minimizing a squared error loss as well as in yielding the correct degree of …

Asymptotic Numbers: Ii. Order Relation, Infinitesimals And Interval Topology, Todor D. Todorov

Mathematics

It has been shown in [8] that the set of asympototic numbers A is a system of generalized numbers including isomorphically the set of real numbers R, as well as the field of formal power (asymptotic) series. In the present paper, which is a continuation of [8], an order relation in A is introduced due to A turning out to be a totally-ordered set. The consistency between the order relation and the algebraic operations in A is investigated and in particular, it is shown that the inequalities in A can be added and multiplied as in the set of …

Asymptotic Numbers: I. Algebraic Properties, Todor D. Todorov

Mathematics

The set of asymptotic numbers A introduced in Refs. [1] and [3] is a system of generalized numbers including the system of real numbers R, as well as infinitely small (infinitesimals) and infinitely large numbers. The purpose of this paper is to study in detail the algebraic properties of A which are a little unusual, in a cenain sense, as compared with the known algebraic structures (rings. fields, etc.) This is necessary for the investigation of the class of asymptotic functions [2.4], which are on their part, generalized functions similar to the distributions of Schwartz but allowing the operation of …

Transformational Geometry Unit, Elizabeth Ann O'Neill

All Graduate Projects

The study included the development and writing of a unit on transformational geometry which involved a holistic approach including the cognitive, psychomotor, and affective domains. This unit was taught to the eighth grade class in the Oakville School District in Oakville, Washington. The results showed support that the teaching of this unit was effective.

Himalayan And Trans-Himalayan Glacier Fluctuations And The South Asian Monsoon Record, Paul Andrew Mayewski, Gerard P. Pregent, Peter A. Jeschke, Naseeruddin Ahmad

Earth Science Faculty Scholarship

Termini fluctuations for glaciers in the Himalayas and Trans-Himalayas are examined for the period AD 1850 to 1960. This period can be characterized as one of general retreat. Differentiation by geographic subdivision, however, reveals that Himalayan glaciers (best exemplified in Lahaul-Spiti, Kolahoi, Nanga Parbat, and Garwhal) show consistent retreat throughout the period, while Trans-Himalayan glaciers (best exemplified on the north side of the Karakoram and in Batura Mustagh and Rakaposhi-Haramosh) deviate from this pattern by displaying a major period of advance from AD 1890 to 1910. Although no apparent relationship exists between the magnitude of termini advances and glacier lengths, …

An Example Of Eskers Formed In Stagnant Ice, David H. Coupland, Paul Andrew Mayewski

Earth Science Faculty Scholarship

Study of stratified glacial deposits near Farmington, New Hampshire reveals that the retreat of Late Wisconsin ice in this area proceeded by means of ice-marginal stagnation. Eskers in t his area were formed within localized ice masses a t or near the base of thin ice by streams which had dendritic patterns and were subaerially exposed.

Characteristics And Significance Of Rock Glaciers In Southern Victoria Land, Antarctica, Paul Andrew Mayewski, Jon Hassinger

Earth Science Faculty Scholarship

[From the introduction] Rock glaciers, large-scale masses of frozen debris...form a group of features that, because of their dependence on temperature and precipitation, can be used as monitors of climatic change.

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix K: Fish & Wildlife Mitigation Plan & Impacts (Revised), New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

The proposed plan is comprised of three major segments: terrestrial, fisheries and endangered species. Each segment is essentially a self-contained unit. All costs for the three segments including land acquisition, operation and maintenance and capital equipment, are to be charged to the project and allocated to the project purposes of hydroelectric generation and flood control.