Physical Sciences and Mathematics Commons^™

Evolved Contact Systems Of Spectral Type A: Au Puppis, V535 Arae, And V1073 Cygni, Kam-Ching Leung, Donald P. Schneider

Department of Physics and Astronomy: Faculty Publications

The photoelectric observations of AU Pup, V535 Ara, and V1073 Cyg were reanalyzed with Wilson and Devinney's approach. All three systems are found to be contact configurations. AU Pup has an unusually large degree of overcontact, 72%. V1073 Cyg is found to be an evolved contact system since the radius of the primary is twice that of a zero-age main-sequence star of corresponding mass. All three systems are found to be evolved according to their locations in the period-spectral-type diagram. Improved photometric parameters are reported for all three systems.

Social And Spatial Relationships Of Coyote Families And Neighboring Coyotes, Althoff D. P.

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Studies On The Role Of Solar Ultraviolet Radiation In "Natural" Water Purification By Aquatic Ecosystems, John Calkins, Jeanne A. Barcelo, Perry Grigsby, Stephen Martin

KWRRI Research Reports

The possibility that pollution might deplete the stratospheric ozone layer and intensify solar UV at the earth's surface focuses attention on the role of solar UV in the various ecosystems at the earth's surface. Previous studies suggested that solar UV might contribute to bacterial die off in wastewater and the studies reported here were directed toward elucidating the action of solar UV in "natural" waters.

It has been assumed that solar UV action on aquatic ecosystems can be evaluated (using proper models) on the basis of the following four independently measurable quantities: I) the intensity of solar UV at the …

Hydrology And Water Quality In The Central Kentucky Karst: Phase Ii Part A: Preliminary Summary Of The Hydrogeology Of The Mill Hole Sub-Basin Of The Turnhole Spring Groundwater Basin, James F. Quinlan, Donald R. Rowe

KWRRI Research Reports

Water from upland areas flows to small ephemeral and perennial springs that feed sinking streams that are tributary to low-order cave streams. These cave streams, also recharged by diffuse percolation, are part of a dendritic network in which intermediate-order streams join high-order streams that flow to major trunk streams. The trunk in the Mill Hole Sub-basin flows across the bottom of a large karst window, Mill Hole, and joins the trunk of the Patoka Creek Sub-basin. Their combined discharge bifurcates, flows around the collapsed central core of a larger karst window, Cedar Sink, and re-joins to flow as one to …

A Remark On The Excess Of Hadamard Matrices And Orthogonal Designs, J Hammer, R Levingston, Jennifer Seberry

Faculty of Informatics - Papers (Archive)

Some improved upper and lower bounds are given for the excess of Hadamard matrices. The excess of orthogonal designs is defined and discussed.

A Computer Listing Of Hadamard Matrices, Jennifer Seberry

Faculty of Informatics - Papers (Archive)

A computer has been used to list all known Hadamard matrices of order less than 40,000. If an Hadamard matrix is not known of order 4q (q odd) then the smallest t so that there is an Hadamard matrix of order 2tq is given. Hadamard matrices are not yet known for orders 268, 412, 428.

Final Report On Environmental Effect Of Subaqueous Sand Fill Acquisition On The Benthic Communities Of Hampton Bar, James River, Virginia, Robert J. Diaz, Donald F. Boesch

Reports

The Newport News Shipbuilding and Drydock Company was granted permission to obtain sand fill from the east end of Hampton Basin Hampton Roads, Virginia for the expansion of their waterfront facilities. A clamshell dredge operated from February to July 1974 and removed a total of 597,055 cu yds of material before breaking down. In August 1974 a hydraulic dredge took over the operation and by February 1975 had removed 899,386 cu yds for total removal of 1,495,410 cu yds.

In order to assess the environmental effects of this project a program of sampling benthic organisms was undertaken from February 1974 …

Oyster Spatfall On Shellstrings In Virginia Rivers: 1977 Annual Summary, Dexter S. Haven, Paul C. Kendall

Reports

No abstract provided.

Evaluation Of Salinity And Temperature As Stress Factors Affecting The Enumeration Of Fecal Coliforms By The Electrochemical Detection Method, Howard I. Kator, Martha W. Rhodes

Reports

The ability of an electrochemical detection method to predict viable numbers of fecal coliforms was evaluated under laboratory conditions with respect to seawater adjusted to various salinities and temperatures. The viability of an Escherchia coli isolat~ as measured by the spread plate technique utilizing non-selective media was unaffected after 12 wk exposure at 2°C and 25 °100 salinity. At higher temperatures (15-30°C) both the total decrease in cell numbers as well as the rates of die-off were greater than at 2°C. There was little apparent difference in viability across the temperature range 15-30°C. Viability was observed to be inversely related …

On The Classical‐Spin Model Of Amorphous Ferromagnets, Harry A. Brown

Physics Faculty Research & Creative Works

No abstract provided.

The Bethe‐Peierls‐Weiss Approximation For Amorphous Magnets, Harry A. Brown

Physics Faculty Research & Creative Works

No abstract provided.

Time Resolved Fluorescence Of The A ²∑+ State Of Gef, R. (Richard) A. Anderson, L. Hanko, S. J. Davis

Physics Faculty Research & Creative Works

The radiative lifetime and quenching rates for the A 2∑ + state of GeF have been measured in the flame of GeH 4+F2 by pulsed laser induced fluorescence. In addition, the radiative lifetime of the ν′=0 level of the A 2∑ + state of SiF has been measured in the flame of SiH 4+F2. Quenching rates for He, N2, and SF 6 on GeF A 2∑ and He on SiF A 2∑ have also been determined. The average zero pressure lifetime of ν′=0, 1, and 2 levels of A 2∑ GeF is 990±100 nsec. The zero-pressure lifetime of the A …

A Xenon Ion Pumped Blue Dye Laser, D. W. Fahey, Laird D. Schearer

Physics Faculty Research & Creative Works

A pulsed xenon ion laser with an output power of 5 kW at 364.5 nm has been used as a pump source for several blue dyes. Broadband conversion efficiencies exceed 20 percent. The use of a birefringent filter provides tunable output in the blue region of the spectrum with a bandwidth of 0.08 nm and a pulse width of 120 ns. © 1978 IEEE

Depositional Systems Of The Sells And Cecil Sandstones, Atoka Formation (Pennsylvanian), Eastern Crawford And Western Franklin Counties, Arkansas, Chris A. Cardneaux

Journal of the Arkansas Academy of Science

The Cecil and Sells sandstones of the Atoka Formation (Pennsylvanian) were studied in the subsurface of eastern Crawford and western Franklin Counties. Sand of the Cecil sandstone was delivered to a high destructive, wave dominated delta southeast of Fort Smith and reworked laterally by longshore currents to form coastal barrier sands to the east. The Sells sandstone unit accumulated as a distributary channel system that bifurcates to the southeast and southwest. The interdistributary areas are characterized by immature sands interbedded with shales. These immature sands were deposited by crevasse splays and reworking of the distributary mouth bars by marine processes …

Geometry And Depositional Systems Of The Orr And Patterson Sands, Bloyd Formation (Pennsylvanian), Eastern Franklin And Western Johnson Counties, Arkansas, Michael E. Corbin

Journal of the Arkansas Academy of Science

The Orr and Patterson sandstones occur in the Trace Creek Shale Member, Bloyd Formation, in surface exposures on the northern Arkansas structural platform. The Orr sandstone exhibits regional thickening trends to the south and southeast into the Arkoma Basin as shown by isolith maps for the area studied. The depositional environment that formed this sandstone comprised fluvial or deltaic channels feeding a destructive delta system to the southeast. The Patterson sandstone lies stratigraphically above the Orr sandstone, and is confined essentially to Franklin and Johnson counties. It is poorly developed or not present in Washington and western Crawford Counties. The …

Depuration Of Kepone By Atlantic Croaker In A Laboratory Study, Robert T. Doyle, J. V. Merriner, M. E. Bender

VIMS Books and Book Chapters

Contamination of the James River in Virginia by the organochlorine pesticide Kepone R prompted depuration studies of commercially important species. Approximately 400 croaker (Micropogonias undulatus) were taken from the James River and placed in Kepone-free York River water. Groups of 20 fish, maintained at ambient temperature, were sampled over time to determine depuration rate. Results suggest that there is no substantial depuration of Kepone by croaker until water temperature exceeds 15 C.

Pennsylvanian And Early Permian Depositional Framework, Southeastern Arizona, Charles A. Ross

Geology Faculty Publications

This summary of the Pennsylvanian and Early Permian depositional framework in southeastern Arizona and adjacent regions is based in large part on the data and conclusions presented earlier in more detail by Ross (1973, 1978). The general stratigraphy of the Pedregosa, Orogrande and Permian basins and much of the literature has recently been summarized by Greenwood and others (1977).

In southeastern Arizona, Pennsylvanian and Permian strata are well exposed in many of the Basin and Range uplifts, where they may be studied in considerable detail. Mesozoic and Cenozoic structures, including local thrust faulting, and the attendant possibility of considerable lateral …

Long Term Rotation Trials, 1978., I Rowland

Experimental Summaries - Plant Research

66M29, 67C13, 67N4, 68E5, 68SG5, 73SG16.

Predictive Test For Take-All; Effect Of Nitrogen Fertalizers On Wheat Rhizosphere Micro-Organisms., K Sivasithamparam

Experimental Summaries - Plant Research

Predictive test for take-all. The use of the most probable number technique.

Effect of nitrogen fertalizers on wheat rhizosphere micro-organisms, 78LG3, 78E16.

76LG25, 77LG20, 76E6, 77JE4, 78LG3, 78E16,

A Simulation Model For Ring-Necked Pheasants, Melvin W. Taylor

Nebraska Game and Parks Commission: Staff Research Publications

One of the most important game birds in the United States is the ring-necked pheasant (Phasianus colchicus). This Asian refugee has provided recreation for untold numbers of sportsmen. Its presence has meant millions of dollars for state game agency coffers, not to mention its impact on local economies. Pheasant populations have fluctuated widely in past years, but the overall trend since the early 1960's has been downward over most of the pheasant range. This decline was caused primarily by loss of habitat due to change in agricultural land use (Mohlis 1974, Dahlgren 1963, Kobriger 1972, Taylor et al. …

The Mcconaughy Rainbow ••• Life History And A Management Plan For The North Platte River Valley, Rodney C. Van Velson

Nebraska Game and Parks Commission: Staff Research Publications

McConaughy Reservoir and the North Platte River drainage upstream to the Nebraska-Wyoming state line represent a major part of the coldwater habitat in Nebraska, 87%, according to the 1972 Nebraska Fish and Wildlife Plan (Figure 1). The plan also showed the upper North Platte River drainage contains 159 miles of coldwater stream habitat and 192 miles of mixed cold and warm water stream habitat, 29 percent of the total mileage in the state. Together, these 351 miles account for 80 percent of the coldwater stream acreage in Nebraska.

McConaughy Reservoir and the North Platte River drainage rainbow trout fishing attracts …

Optimum Yield And The Fcma: A Case For Economic Discrimination, Herrick J. Johnson

Marine Affairs Theses and Major Papers

Marine Affairs thesis from the University of Rhode Island.

Information Systems For Natural Resources Managers: An Exercise In Interfacing, Connie L. Knapp

Marine Affairs Theses and Major Papers

This thesis proposes guidelines for achieving the human interfaces which are requisite to the development and operation of natural resources information systems. Conclusions were drawn from an evaluation of past experiences in building and attempting to use these types of systems. Both successful and unsuccessful systems were considered, as well as the current effort in Rhode Island to develop a system for coastal resources managers. Examples are presented to support particular conclusions and recommendations. The perspective is nontechnical. Examples and recommendations, therefore, are conceptual rather than quantitative or technical. While a variety of mechanisms can be used to achieve the …

Concrete Ships, Mark L. Lavache

Marine Affairs Theses and Major Papers

The incentive behind this study is based on a two-fold premise: 1) that a comprehensive outline of the historical development of concrete shipbuilding and its related technologies is either non-existent or defies discovery, and 2) that although this study is neither based on a hypothesis, nor intended to resolve a problem area or promote a position, its merit lies in its inductive nature. Included are explanations of of the various compositions, uses, and construction techniques relating to reinforced concrete, ferro-cement, and prestressed concrete.

Interagency Conflict And Its Effect On Intermodal Shipping, Gerald Seifert

Marine Affairs Theses and Major Papers

The movement of goods by more than one mode of transportation in a single container has been viewed by some in the marine component of the transportation industry as a transformation a important as the coming of steam. Concerns with intermodalism and the difficulties faced in addressing the needs presented by the technologically enhanced maritime transportation industry do not start with the invention of the first multi-package container capable of being moved by several modes of transportation without need to repack; they start with an exploration of the perceived need to regulate the several components of the transportation industry, the …

A Proposal For A World Ocean Management Authority: As An Alternative Ocean Regime To Meet The Challenge Of The Management And Utilization Of Collective Ocean Activities, Simon W. Tache

Marine Affairs Theses and Major Papers

The oceans may be an alternative source of resource supply offering the opportunity for extensive practical uses. A number of ocean systems have been instituted to manage the exploitation of ocean resources including the practice of states to negotiate and enter into bilateral and multilateral agreements on a variety of ocean activities; but the complexities as well as the tendency of some of these ocean uses to generate extraterritorial effects, accentuate the need for a global response to alleviate these problems. Isolated individual national regulations and standards lack international uniformity to ensure adequate and rational utilization of the oceans and …

A National Approach For Marine Scientific Research In Exclusive Economic Zones, Thomas H. Brillat

Marine Affairs Theses and Major Papers

After years of constant negotiations at the Third United Nations Conference of the Law of the Sea (UNCLOS III), no new codified law for the seas has been produced. It appears certain, though, that countries throughout the world will exercise some form of sovereignty or national jurisdiction over an Exclusive Economic Zone (EEZ) extending 188 miles into the ocean beyond a twelve mile territorial sea. Included in this jurisdiction will be the control of marine scientific research (MSR). A need has arisen to establish a uniform procedure for the conduct of MSR to the mutual advantages of the coastal state, …

Test 1279: Versatile 875 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Summary Report 1977 Pasture Species Investigations - Wheatbelt, N. R. Mckeown

Experimental Summaries - Plant Research

Trials in progress - 68MO23, 70ME2, 71LG17, 71WH13, 76M5. Seasonal conditions. Grazing trials - 68MO23, 70ME2, 71LG17, 71WH13, 75N18, 76M5 - Mini-ley, Merredin. Legume species grazing management trial (West Moora) - 68M023. Comparison of production from Cyprus barrel medic and volunteer pasture (Lake Grace) - 71LG17. Comparison of production from Tornafield medic, serradella and subterranean clover (Wongan Hills Research Station) - 71WH13. Comparison of Geraldton and Northam subterranean clover (Walgoolan) - 70ME2. Early maturing subterranean clover grazing trial (Merredin Research Station) - 75M5. Small plot trials: Early maturing subterranean clovers Subterranean clover trials - southern wheatbelt - 75LG21, 75LG23, 76N16, …

Soil Salinity In Western Australia : A Summary, T C. Stoneman

Journal of the Department of Agriculture, Western Australia, Series 4

Soil salinity problems have long been recognised in Western Australia. The earliest published explanation in 1924 suggested that removing native vegetation increased stream salinity, and this basic cause has been confirmed by many studies since.