Physical Sciences and Mathematics Commons^™

Geology Of Lake Mcconaughy Area, Keith County, Nebraska, Roger K. Pabian, Robert F. Diffendal Jr., Frankie Gould

School of Natural Resources: Faculty Publications

Rocks cropping out along the North Platte River valley at Lake McConaughy provide a glimpse into Nebraska's geologic past. Here are excellent exposures of the Ogallala Group, which consists of continental sedimentary rocks deposited during the Miocene epoch of the Tertiary period of geologic time. This group of rocks extends throughout much of Nebraska (see geologic bedrock map on outside back cover) but is overlain in most places by younger stream and wind deposits of Pliocene(?) and Pleistocene age. Easily accessible, the Ogallala outcrops contain locally abundant fossils of seeds, casts of pedotubules, and occasional fossils of vertebrate animals such …

Gravity And Ground Magnetic Investigations In Eastern Nebraska, Robert F. Diffendal Jr., R. R. Burchett

Robert F. Diffendal, Jr., Publications

The purpose of this investigation was to extend the area covered by gravity and ground magnetic data related to the Nemaha Uplift and associated structures in eastern Nebraska. Gravity data were collected from Butler, Jefferson, Saline, and Seward counties. Additional ground magnetic data and gravity data were collected for eastern Sarpy and northeastern Cass counties in Nebraska and gravity data were collected from parts of Mills and Fremont counties in Iowa.

Long-Time Behavior Of Ginzburg-Landau Systems Far From Equilibrium, Evangelos A. Coutsias, B. A. Huberman

Branch Mathematics and Statistics Faculty and Staff Publications

Using singular-perturbation techniques, we study the stability of modulated structures generated by driving Ginzburg-Landau systems far from equilibrium. We show that, far from equilibrium, the steady-state behavior is controlled by an effective Lagrangian which possesses the same functional form as the original free energy but with renormalized coefficients. We study both linear and nonlinear sources and determine their influence on the long-term stability of the bifurcating solutions.

Proceedings Of 14th Conference Prairie Grouse Technical Council. September 23-25, 1981: Halsey, Nebraska

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

HOST: Nebraska Game and Parks Commission

INTRODUCTION - Jim Mitchell, Upland Game Specialist, Nebraska Game and Parks Commission (Conference Coordinator)

WELCOME - Bill Bailey, Assistant Director, Nebraska Game and Parks Commission

IN MEMORIAM — This publication is dedicated to Ken Robertson

THE NEBRASKA SANDHILLS - AN OVERVIEW, Jon Farrar, Nebraska Game and Parks Commission

PRAIRIE GROUSE IN THE SANDHILLS, Carl W. Wolfe, Nebraska Game and Parks Commission

GROUSE ON fflE BESSEY DIVISION NEBRASKA NATIONAL FOREST, Steve Marquardt, U.S. Forest Service

EXPERIMENTAL SHARP-TAILED GROUSE INTRODUCTIONS IN PENNSYLVANIA, John J. Kriz, Pennsylvania Game Commission

ANALYSIS OF GREATER PRAIRIE CHICKEN POPULATION AND HARVEST …

Report To The Coastal Erosion Abatement Commission Commonwealth Of Virginia Concerning The Inventory Of Sand Supplies In The Southern Chesapeake Bay, Robert J. Byrne, Carl H. Hobbs Iii, Robert A. Gammish

Reports

In its report to the Governor and the General Assembly of Virginia (Senate Document No. 4, Commonwealth of Virginia, 1979), the Coastal Erosion Abatement Commission found that "there is a need to locate sources of sand supplies for rebuilding public beaches. Certain bottom areas in the lower Chesapeake Bay should be studied as possible sources of sand supply for public beaches." And toward that end, the Commission recommended that "The School of Marine Science, Virginia Institute of Marine Science, College of William and Mary, study and analyze possible sources of sand supply in the lower Chesapeake Bay and vicinity for …

A Test Of Macroevolutionary Problems With Neontological Data, Cliff A. Lemen, Patricia W. Freeman

School of Natural Resources: Faculty Publications

Ricklefs (1980) suggested the use of neontological data to distinguish between puncuated equilibrium and gradualism as modes of evolution. This paper investigates his model and finds it contains oversimplifications that make any test difficult. We modify his model slightly and use it as a limited test of punctuated equilibrium by large morphological shifts at speciation. This test is applied to a data set of 110 species from two families of bats, the Emballonuridae and the Molossidae. We find no evidence of consistently large morphological shifts at the formation of subspecies, species or genera.

Regional Tectonics And Seismicity Of Eastern Nebraska, Annual Report, July 1979–June 1980, R. R. Burchett

Conservation and Survey Division

This annual report presents and interprets the information obtained by the Conservation and Survey Division (Nebraska Geological Survey) during contract year July 1, 1979, to June 30, 1980, under contract NRC-04-76-3l5 with the U.S. Nuclear Regulatory Commission. The information pertains to the geology, structure, tectonics, and seismicity of eastern Nebraska with emphasis on the vicinity south of Omaha, Nebraska. Some of the information presented here results from a combination of studies begun in earlier years but the greater part results from studies begun during the contract year.

The scope of the studies is summarized as follows:

1. Rock outcrops in …

Monthly Salinity Data For The York River Plotted By River Mile By Month, Frank J. Wojcik

Reports

This report presents graphs on the mean salinities yearly by five mile intervals upriver from the mouth of the York River, and these are overlaid with 25-year average data for the same month, along with the 95% confidence intervals.

Classification And Ranking Of Selectd Arkansas Lakes, Robert E. Babcock, Eugene H. Schmitz, Thomas Buchanan, Richard L. Meyer, James I. Meinecke, David B. Czarnecki

Arkansas Water Resources Center Technical Reports

Trophic-state related problems associated with waters in the United States have generated tremendous public interest and concern, particularly during the past decade. These interests and concerns led to Public Law 92-500, the mandate by Congress known as the Federal Water Pollution Control Act. Various sections of PL 92-500 directly address the need for trophic-state analyses, particularly Section 314 referred to as the Clean Lakes Program which assigns states the responsibility for classifying their lakes according to water quality, identifying methods of pollution control and restoring those lakes which have become degraded.

Application Of A New Method For Quantitative Evaluation Of Stream Benthic Algal Populations, Richard L. Meyer, Neil Woomer

Arkansas Water Resources Center Technical Reports

The response of stream biota to changing water quality or other ecosystem perturbations is an important means of assessing water quality. The dynamic nature of streams induces significant sampling and measurement problems. In smaller streams a true algal plankton subcommunity is lacking and the major location for the production of algae is attachment onto stones and other stable surfaces at the substrate-water interface. Several artificial techniques have been developed to analyze the composition of a portion of the epiphytic periphyton (algae attached to stones) but not populations which are qualitatively and quantitatively similar to natural substrates. A newly developed substrate …

A Faunal Analysis Of The Springs Of The Ouachita Mountains, Arkansas, Henry W. Robison

Arkansas Water Resources Center Technical Reports

Spring ecosystems in Arkansas have historically received little attention. A faunal survey was made of 33 springs located in the core area Ouachita Mountains physiographic province. The study area was 135 x 80 km extending west from Hot Springs, Arkansas to the Oklahoma line. Springs in the Ouachita Mountain physiographic province were characterized as generally faunistically poor with often a single species such as the isopod, Lirceus h. hoppinae, being the dominant faunal element both numerically and with regard to biomass. A total of 40 species of invertebrate species and eight vertebrate species were collected from the spring environs during …

Estimating Water Demand Schedules For Selected Industries In Arkansas, Joseph A. Ziegler, Stephen E. Bell

Arkansas Water Resources Center Technical Reports

Water demand functions for the paper and chemical industries in the state of Arkansas were estimated utilizing data collected from individual plants throughout the state. Regression analysis was used to estimate demand functions from a data base which included information on intake and gross water use by source, recirculated water use, costs of acquiring, treating, and discharging water, plant output, employment, and level of technology. The demand for intake water was estimated as an exponential function of average water costs and the level of technology primarily. Price elasticities of demand were estimated as approximately equal to one for both industries. …

Existence And Monotone Method For Periodic Solutions Of First Order Differential Equations, S. Leela, V. Lakshmikantham

Mathematics Technical Papers

An attempt was made recently in [3] to combine fruitfully the two basic techniques, namely the method of upper and lower solutions and the Lyapunov-Schmitt method to investigate the existence of periodic solutions of second order nonlinear boundary value problems. in this paper, we utilize this fruitful approach to study existence of periodic solutions of first order nonlinear differential equations. We also develope monotone iterative technique for obtaining multiple periodic solutions which are obtained as limits of monotone sequences. Since each member of these sequences is a periodic solution of a linear differential equation of first order which can explicitly …

Testing The Coordination Predicate, Janice D. Cuny, Lawrence Synder

Department of Computer Science Technical Reports

No abstract provided.

Characteristics Of Water Vapor Tracked Winds, Frederick R. Mosher

Publications

Wind measurements were obtained by tracking water vapor features on Meteosat and GOES-VAS 6.7 micron water vapor images. While pure water vapor features are fuzzy, there are discernible features which can be tracked. An investigation of preprocessing algorithms designed to bring out the features to be tracked showed that high pass filters tended to bring out the noise in the image, while low pass filters washed out the features. Sliced linear gray scale stretching under operator control gave the best enhancement to the water vapor features.

23rd Rocky Mountain Conference

Rocky Mountain Conference on Magnetic Resonance

Abstracts and meeting program from the 23rd annual meeting of the Rocky Mountain Conference, co-sponsored by the Rocky Mountain Section of the Society for Applied Spectroscopy and the Rocky Mountain Chromatography Discussion Group. Held in Denver, Colorado, August 2-6, 1981.

Soil Surveys In Kentucky, Harry Hudson Bailey

Soil Science News and Views

Fifty-four Kentucky counties have modern soil surveys (published 1959, or later) using the mapping and soil classification procedures of the National Cooperative Soil Survey. The cooperators in the program include the USDA-SCS, USDA-FS, Kentucky Department for Natural Resources and Environmental Protection and the Kentucky Agricultural Experiment Station.

Connquest, Sandra Cookson, D.W. Allinson, G.S. Speer, R.W. Taylor, R.P. Prince, J.W. Bartok, D.W. Protheroe, D.R. Miller

Storrs Agricultural Experiment Station

No abstract provided.

Volume 5, Number 8 (August 1981), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

Problems With Cobol--Some Empirical Evidence, D. M. Volpano, Herbert E. Dunsmore

Department of Computer Science Technical Reports

No abstract provided.

The Creation Of Holograms Utilizing Fiber Optics, Abdul Rahim Omar

Masters Theses

Holography involves the interference of two light beams, namely a reference beam and an object beam. Instead of the conventional method using beam splitters and mirrors to direct the light path, fiber optic bundles are used and high quality holograms have been produced. When fiber optic bundles are used, a spatial filter is not needed to produce a "clean" beam of light for the reference beam. Fiber optic bundles also provide greater flexibility of illumination for the object beam and/or fir the reference beam. Also, it is easier to illuminate the object from many directions. Finally, the distance from the …

The Water Monomer On The Prism Face Of Ice And Above A Four Layer Ice Basal Face Ledge: An Effective Pair Potential Model, Barbara N. Hale, Jerry Kiefer, Carolyn A. Ward

Physics Faculty Research & Creative Works

A previous study of the water monomer on the basal faces of ice is extended to consider the interaction of the water molecule with a rigid prism face of ice and with an ice basal face ledge. The effective central force H₂O-H₂O potentials of Stillinger and Rahman are used to generate maximal binding energy surfaces for the H₂O adsorbed on the sample substrates. The results indicate that the prism face of ice binds the water molecule more strongly than the basal faces, and the step on the basal face serves to expose high binding …

A Study Of The Films Produced By The Aluminum/Water Reaction Using Rutherford Backscattering Spectroscopy, Reed L. Shilts

Masters Theses

This work compares the action of pure water to various aqueous electrolytes on aluminum surface film formation at about 100°C. The electrolytes were pure water with various inhibitor ions added. The ions were nitrate, tungstate, borate, molybdate, silicate, phosphate, a mixture of nitrate and molybdate, and a mixture of silicate and molybdate. The investigative technique was Rutherford backscattering spectroscopy (RBS) using 2 MeV alpha particles with an annular detector set at 180 degrees for maximum elemental resolution. RBS was chosen for this investigation because it offers in an easily interpretable manner a relatively fast and semi-quantitative method of analysis of …

Detector Geometry For Cascade Photon Experiments, Roger Minoru Munechika

Masters Theses

An observation of cascading optical photons can be used to determine an absolute excitation cross section for the intermediate state without the need of standard lamp calibration. In order to reduce the data an angular correlation function and an angular distribution function must be known. These functions depend on the alignment of the upper excited state and the polarization of the light emitted in the lower part of the cascade. However, at certain angles of observation the values of the required functions are known regardless of the alignment or polarization. A computer search is done to find these angles for …

A Geochemical Study Of The Sudbury Breccia, Kevin M. Prochaska

Masters Theses

The origin of the Sudbury Breccia surrounding the Sudbury Basin of Ontario, Canada has long been debated. The breccia has been described both as an igneous injection and as an abraded country rock formed by attrition in place.

A geochemical analysis of selected elements in matrix and clast samples from the breccia revealed distinct differences between the two sample groups. Matrix samples were lower in silicon and higher in heavy elements than the clasts. Matrix and clasts were comparable in light elements.

The results of the analysis favor an igneous process. Petrographic observations and structural evidence support this idea. The …

The Petrology And Geochemistry Of Keweenawan Diabase Dikes In Ontonagon, Gogebic, Iron And Dickinson Counties, Michigan, James J. Hahnenberg

Masters Theses

Petrographic and chemical studies of Keeweenawan-age diabase dikes in Michigan's Upper Peninsula show two major groupings, Porcupine Mountain dikes and Lower Keweenawan dikes consist of two major rock types, fine-grained smaller dikes and the coarse-grained central portions of larger dikes. Major minerals are subophitic plagioclase and pyroxene. The rocks, as compared to the "average" basalts, are low in Al₂0₃, high in Ti0₂, K₂0, P₂0₅ and contain moderate amounts of Fe0_t. They are classified as quartz tholeiites. Several parental magma sources that would account for these and other …

The Hydrologic Factors That Control Carbonate Hardness In Kalamazoo County Lakes, Southwestern Michigan, Linda Brittain Fenner

Masters Theses

The range and distribution of carbonate hardness in Kalamazoo County lakes were determined and hydrologic factors thought to control hardness were evaluated. Surface-water samples were collected from thirty- five randomly selected lakes in October, 1980. Carbonate hardness ranged from 16 to 244 mg/1 with 61 percent above 120 mg/1. Ten hydrologic variables were analyzed with respect to lake hardness. Lakes with a surface-water inlet were a ll hard (greater than 180 mg/1) and lakes at least two meters higher than the approximate ground-water table were all relatively soft (less than 100 mg/1). No direct correlations were found between the other …

Dolomitization Of The Brassfield Formation (Lower Silurian) In Adams County, Ohio, Lisa L. Varga

Masters Theses

The Lower Silurian Brassfield Formation which outcrops in the Tri-state area of Ohio, Indiana and Kentucky is a transgressive sequence consisting of a series of interbedded shales, limestones and dolostones. Evidence from depositional environments, petrography and spatial relationships of dolomitized and undolomitized rock suggests dolomitization in southwestern Ohio was a two-stage process. Initial dolomitization was restricted to the basal Belfast Member and probably occurred penecontemporaneously on small supratidal islands in a manner analagous to that which occurs in the modern sabkha environment of the Persian Gulf. Regional dolomitization was a later diagenetic event related to the formation of a fresh-seawater …

Permit Requirements For Development Of Energy And Other Selected Natural Resources For The State Of Utah, Camp Dresser And Mckee, Inc.

All U.S. Government Documents (Utah Regional Depository)

This guidebook is one of a series prepared for every State. The purpose of the guidebook is to summarize environmental and land-use permits issued by the State for the development of energy and other natural resources. The guidebook is intended not only for private developers and interest groups, but also for regulatory officials of Federal, State, and local government as well.

A Computer-Assisted Instructional System And Its Application To A Course On Computer Structures And Hardware, Tahir Mufti

Masters Theses

Computer-Assisted Instruction is a powerful tool which is fast becoming an integral part of the instructional system in schools.

The objective of this study is to review the techniques used to provide Computer-Assisted Instruction and to present such an instructional system called LEARN which is general enough to be applied towards the teaching of any subject. Also included are notes on the application of the LEARN system to a subject entitled "Computer Structures and Hardware".