Physical Sciences and Mathematics Commons^™

Shoreline Situation Report Counties Of Fairfax And Arlington, City Of Alexandria, Dennis W. Owen, Lynne C. Morgan, Nancy M. Sturm, Robert J. Byrne, Carl H. Hobbs Iii

Reports

No abstract provided.

Distribution Of Macrobenthic Mollusca And Amphipoda In Relation To A Sharp Thermal Front: Cape Hatteras Region, North Carolina, Donald Paul Weston

Dissertations, Theses, and Masters Projects

No abstract provided.

The Development Of An Operating System For The Microdata 32/S, George Edward Butler

Dissertations, Theses, and Masters Projects

No abstract provided.

Semiclassical Calculations Of Vibrational Energy Levels For Non-Separable Systems Using The Birkhoff-Gustavson Normal Form, Randall T. Swimm, John B. Delos

Arts & Sciences Articles

We present a semiclassical method of calculating vibrational energy levels for a system of nonseparable coupled oscillators. For a Hamiltonian written as a power series in which the leading terms are given by a sum of one‐dimensional harmonic oscillator Hamiltonians, the method involves transforming the original classical Hamiltonian via a succession of canonical transformations into a normal form which is a power series originally defined by Birkhoff and later generalized by Gustavson. Two cases are distinguished. If the harmonic oscillator frequencies in the unperturbed Hamiltonian are incommensurable, then the normal form is a power series whose terms are products of …

On The Water Masses Of Norfolk Canyon, Evon Paul Ruzecki

Dissertations, Theses, and Masters Projects

Results from four cruises in the outer continental shelf/slope region of the Middle Atlantic Bight demonstrate the effect of Norfolk Canyon, an east coast submarine canyon, on the exchange of local water masses. Seasonal distributions of water masses and water types around the canyon were determined from closely spaced (2-5 km) hydrographic and XBT stations. Five component water types representing shelf, winter (or cold pool), slope, warm Western North Atlantic and cool Western North Atlantic waters are defined by specific T/S signatures. The percent of each water type necessary to achieve measured T/S values along sections to the north and …

Notes On The Comparative Ecology Of Cottus Bairdi And Cottus Girardi In Naked Creek, Virginia, Richard Edmond Matheson

Dissertations, Theses, and Masters Projects

No abstract provided.

Variation And Prediction Of Water Temperature In York River Estuary At Gloucester Point, Virginia, Bernard B. Hsieh

Dissertations, Theses, and Masters Projects

No abstract provided.

Historical Evolution Of Coastal Sand Dunes On Currituck Spit, Virginia/North Carolina, Harold F. Hennigar

Dissertations, Theses, and Masters Projects

No abstract provided.

Search For Metastable Muonic 25 Atomic States, George Whitfield Dodson

Dissertations, Theses, and Masters Projects

No abstract provided.

Theory Of Electron Detachment In Collisions Of Negative Ions With Atoms, Ronald David Taylor

Dissertations, Theses, and Masters Projects

No abstract provided.

The Virginia Chesapeake Bay: Recent Sedimentation And Paleodrainage, Michael J. Carron

Dissertations, Theses, and Masters Projects

A comparison of the bathymetric surveys of the 1850-series and 1950-series indicated an average sedimentation rate for the Virginia Chesapeake Bay of 0.55 m (1.81 ft) for the last century. A statistically significant relationship between the depth of water and the rate of sedimentation was found where high rates of sedimentation exist in extremely shallow water (0 to 2 m) and in intermediate depths (6 to 13 m), while low rates exist between 2 m and 6 m, and in some cases in water deeper than 13 m. The results of 900 km of continuous seismic reflection profiles taken in …

An Evaluation Of Hydrocarbon Extraction Techniques For Tissue, Colleen Gail Becker

Dissertations, Theses, and Masters Projects

No abstract provided.

Pl/Star, A Structured Assembly Language For The Cdc Star-100, Barry Lee Mowday

Dissertations, Theses, and Masters Projects

No abstract provided.

Hydrography And Hydrodynamics Of Virginia Estuaries. Xvii, Mathematical Ecosystem Modeling Study Of The York River, P. V. Hyer, A. Y. Kuo, C. S. Fang, W. J. Hargis Jr.

Reports

The York River drainage basin is rural, with an economy based on farming, logging, fishing and recreation. Water quality conditions are generally good, with low chlorophyll and nutrients and low fecal coliform counts. Dissolved oxygen concentrations are high except for periodic deoxygenation of the water deeper than 8 m in the reach extending 10 km upstream of the mouth.

A quasi-three dimensional tidal average model was constructed and calibrated using intensive field data collected in June and July, 1976 and verified using slack water run data from September, 1976. The model components are: salinity, fecal coliform, chlorophyll, CBOD, dissolved oxygen, …

Chesapeake Bay Baseline Data Acquisition Appendix Xi: Shoreline Erosion, Chesapeake Bay Research Consortium, Incorporated, University Of Maryland, Center For Environmental And Estuarine Studies, Virginia Institute Of Marine Science

Reports

No abstract provided.

Chesapeake Bay Baseline Data Acquisition Appendix X: Effects Of Boating And Shipping On Water Quality, Chesapeake Research Consortium, Incorporated, University Of Maryland, Center For Environmental And Estuarine Studies, Virginia Institute Of Marine Science

Reports

No abstract provided.

Chesapeake Bay Baseline Data Acquisition: Final Report, Maurice P. Lynch, Andrew J. Mcerlean, Chesapeake Research Consortium, Incorporated

Reports

This report forms one of several appendices which are the body of

the Chesapeake Bay Baseline Data Acquisition Final Report. These

appendices are as follows:

Appendix I. A Chesapeake Bay Directory

Appendix II. Submerged Aquatic Vegetation

Appendix III. Toxics in the Chesapeake Bay

Appendix IV. Eutrophication

Appendix V. Shellfish Bed Closures

Appendix VI. Dredging and Spoil Disposal

Appendix VII. Modification of Fisheries

Appendix VIII. Hydrologic Modifications

Appendix IX. Wetlands Alteration

Appendix X. Effects of Boating and Shipping on Water Quality

Appendix XI. Shoreline Erosion

Chesapeake Bay Baseline Data Acquisition Appendix Ix: Wetlands Alteration, Chesapeake Research Consortium, Incorporated, University Of Maryland, Center For Environmental And Estuarine Studies, Virginia Institute Of Marine Science

Reports

No abstract provided.

Plant Geography And Water Quality Data For Chesapeake Bay Waters Of Virginia's Eastern Shore, John C. Munday Jr., Paul L. Zubkoff, J. Ernest Warinner Iii, Elvira Ferrez-Reyes, Hayden H. Gordon, Kenneth A. Moore

Reports

Plant geography and water quality data were collected in shallow water near Cape Charles and Occohannock Creek, Virginia on two occasions. Data from April, 1978 included hydrography, distribution and abundance of -submerged aquatic vegetation, phytoplankton census, and water clarity data. Data from May, 1978 included hydrography, phytoplankton census, water clarity, and primary productivity data. The May data collection was coincident with an overflight of the NASA JSC C-130 aircraft (6600 m) acquiring color infrared photography and multispectral scanner data; cell concentrations reached 105/ml, chlorophyll~ 72 pg/1, and suspended sediment 94 mg/1. i

Chesapeake Bay Baseline Data Acquisition Appendix Viii: Hydrologic Modifications, Chesapeake Research Consortium, Incorporated, University Of Maryland, Center For Environmental And Estuarine Studies, Virginia Institute Of Marine Science

Reports

No abstract provided.

Chesapeake Bay Baseline Data Acquisition Appendix Iv Eutrophication, Chesapeake Research Consortium, Incorporated, University Of Maryland, Center For Environmental And Estuarine Studies, Virginia Institute Of Marine Science

Reports

No abstract provided.

Chesapeake Bay Baseline Data Acquisition Appendix Vi: Dredging And Spoil Disposal, Chesapeake Research Consortium, Incorporated, University Of Maryland, Center For Environmental And Estuarine Studies, Virginia Institute Of Marine Science

Reports

No abstract provided.

Theory Of Near-Adiabatic Collisions. Ii. Scattering Coordinate Method, W. R. Thorson, John B. Delos

Arts & Sciences Articles

A rigorously correct and fully quantum-mechanical theory of slow atomic collisions is presented, which removes the formal defects and spurious nonadiabatic couplings of perturbed-stationary-states theory, and arrives at coupled equations for the heavy-particle motion which are the same as those obtained in the preceding paper by the electron translation factor formulation. Here, however, the theory is formulated in terms of suitably defined scattering coordinates, and electron translation factors do not appear. A unified physical interpretation of both approaches can thereby be made, and smaller terms in the coupled equations, describing corrections of order mμ to electronic binding energies and to …

Theory Of Near-Adiabatic Collisions. I. Electron-Translation-Factor Method, W. R. Thorson, John B. Delos

Arts & Sciences Articles

The theory of near-adiabatic collisions is formulated in a fully quantum-mechanical form, correctly taking into account the role of electron translation factors (ETF's). A general form for the ETF, using switching functions, is given for systems which are electrically either asymmetric or symmetric (with or without mass asymmetry). The main result is that the close-coupled scattering equations obtained in the perturbed-stationary-states theory must be replaced by equations of identical form, but having modified nonadiabatic coupling matrices. In general, the corrections involved are substantial; their nature, and effect on coupling matrices, is discussed, and conditions when they are likely to …

Chesapeake Bay Baseline Data Acquisition Appendix Ii: Submerged Aquatic Vegetation Report, Chesapeake Research Consortium, Incorporated, Virginia Institute Of Marine Science, University Of Maryland, Center For Environmental And Estuarine Studies

Reports

No abstract provided.

Chesapeake Bay Baseline Data Acquisition Appendix I: A Chesapeake Bay Directory, Chesapeake Research Consortium, Incorporated

Reports

This directory is the updated version of the Mitre Corporation directory compiled in September 1976 for the staff of the Chesapeake Bay Program, Region III, Environmental Protection Agency. It identifies, by name, address, and telephone number, academic researchers, administrators, institutions, agencies, interest groups, consulting organizations, and other entities concerned with the water quality of the Chesapeake Bay and related water matters. It is current as of February 1978 and should be revised periodically to incorporate changes in personnel and organization structure.

Guidelines For Zooplankton Sampling In Quantitative Baseline And Monitoring Programs, Fred Jacobs, George C. Grant

Reports

Methods applicable to zooplankton sampling and analysis in quantitative baseline and monitoring surveys are evaluated and summarized. Specific recommendations by managers must take into account characteristics of the water mass under investigation, the abundance of contained zooplankton and phytoplankton populations and the objectives of the study. Realistic planning and development must also consider available monetary and manpower resources.

Modeling Sediment Movement In The Turbidity Maximum Of An Estuary, Allbert Kuo, Maynard M. Nichols, James Lewis

Books

This research developed a two-dimensional, time-dependent numerical model to simulate the movement of water and suspended sediment in the turbidity maximum of an estuary. This model is a systematic sequence of mathematical procedures derived from the mass-balance equation and the equation of motion. Lateral integration is used to obtain two-dimensional equations; these equations are integrated with depth over the height of successive layers. Finite difference equations then are written for each layer and solved numerically using prescribed boundary conditions.

Numerical Experiments With The Multi-Grid Method, Theodore Craig Poling

Dissertations, Theses, and Masters Projects

No abstract provided.

Electrically-Induced Shifts Of The Gallium Arsenide Nuclear Spin Levels, Katherine Ann. Dumas

Dissertations, Theses, and Masters Projects

No abstract provided.