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Articles 4381 - 4410 of 4602
Full-Text Articles in Physical Sciences and Mathematics
Dissolution Rates Of Silica Sources In Sea Water, Carol A. Lake
Dissolution Rates Of Silica Sources In Sea Water, Carol A. Lake
Dissertations, Theses, and Masters Projects
No abstract provided.
Ectoparasites Of Fishes Of The Antarctic Peninsular Area, Ervin Lynn Suydam
Ectoparasites Of Fishes Of The Antarctic Peninsular Area, Ervin Lynn Suydam
Dissertations, Theses, and Masters Projects
No abstract provided.
Fatty Acids And Hydrocarbons In The Surface Waters Of The York River, John G. Windsor
Fatty Acids And Hydrocarbons In The Surface Waters Of The York River, John G. Windsor
Dissertations, Theses, and Masters Projects
No abstract provided.
Serum Esterase, Lactate Dehydrogenase, And Tetrazolium Oxidase Polymorphisms In The Clupeidae, Walter Francis Eanes
Serum Esterase, Lactate Dehydrogenase, And Tetrazolium Oxidase Polymorphisms In The Clupeidae, Walter Francis Eanes
Dissertations, Theses, and Masters Projects
No abstract provided.
Acute Toxicity Of No 6 Fuel Oil To Intertidal Organisms In The Lower York River, Virginia, Jeffrey L. Hyland
Acute Toxicity Of No 6 Fuel Oil To Intertidal Organisms In The Lower York River, Virginia, Jeffrey L. Hyland
Dissertations, Theses, and Masters Projects
No abstract provided.
Gamma Decay Of States Excited By 300 And 600 Mev Protons On Targets Of Boron, Carbon, Nitrogen, Oxygen, Magnesium, And Calcium, Max David Holt
Gamma Decay Of States Excited By 300 And 600 Mev Protons On Targets Of Boron, Carbon, Nitrogen, Oxygen, Magnesium, And Calcium, Max David Holt
Dissertations, Theses, and Masters Projects
No abstract provided.
Distribution, Growth, Selective Feeding, And Energy Transformations Of Young-Of-The-Year Blueback Herring, Alosa Aestivalis (Mitchill), In The James River, Virginia, Richard Greig Burbidge
Distribution, Growth, Selective Feeding, And Energy Transformations Of Young-Of-The-Year Blueback Herring, Alosa Aestivalis (Mitchill), In The James River, Virginia, Richard Greig Burbidge
Dissertations, Theses, and Masters Projects
Energy transformations and budget are computers for young-of-the-year blueback herring, Alosa aestivalis, in the James River, Virginia. Distribution, growth, and selective feeding are described. Fish and zooplankton collections were made at five stations in the main channel of the James RIver from June through November 1969. Two 24hr series of samples were collected in July and October 1968 in the Potomac River. A direct relationship existed between standing cropos of zooplankton and distribution, growth, and feeding of blueback herring. Zooplankton densities were highest upstream, where food consumption and growth rates were correspondingly highest. A progressive downstream decrease and upstream increase …
Acute Toxicity Of Unbleached Kraft Mill Effluent (Ukme) To The Oppossum Shrimp, Neomysis Americana Smith, Fred Jacobs
Acute Toxicity Of Unbleached Kraft Mill Effluent (Ukme) To The Oppossum Shrimp, Neomysis Americana Smith, Fred Jacobs
Dissertations, Theses, and Masters Projects
96-hour TL50 values of unbleached kraft mill effluent (UKME) for Neornysis arnericana were found to range from concentrations of 3.29 to 6.85% at 26-28 C and 3.90 to 7.30% at 16-18 C. Differences between batches of effluent proved insignificant in experiments at each temperature regime. Furthermore, UKME did not lose its toxicity, when stored for 5 to 7 days at 4 C. A concentration of 20% effluent killed 100% of the organisms in 8 of the 12 bioassays. Slope functions and confidence limits of TL50 were calculated. This dissertation is from the Joint Program Degree from the College of William …
The Reproductive Cycle And Larval Tolerances Of Rangia Cuneata In The James River, Virginia, Thomas David Cain
The Reproductive Cycle And Larval Tolerances Of Rangia Cuneata In The James River, Virginia, Thomas David Cain
Dissertations, Theses, and Masters Projects
The autecology of the brackish water clam Rangia cuneata was investigated in the James River, Virginia, from February 1970 to January 1972. The reproductive cycle, combined salinity and temperature effects on embryos and larvae, and setting were studied. Histological slides were made, set collected, and temperature and salinity measurements taken from three populations living in different salinity regimes. Phases of gonad development are described. Gametogenesis started in April and from May through September clams were found in all gonadal phases. Ripe gonads were found from May to late November with no summer or inactive period. It was determined by the …
Nmr Studies Of Ammonium Dihydrogen Arsenate And High Temperature Transitions In The Potassium Dihydrogen Phosphate Group, John Young Nicholson
Nmr Studies Of Ammonium Dihydrogen Arsenate And High Temperature Transitions In The Potassium Dihydrogen Phosphate Group, John Young Nicholson
Dissertations, Theses, and Masters Projects
No abstract provided.
Low Energy Studies Of The Experimental Elastic Differential Cross-Sections For The Systems Proton-Helium, Proton-Neon And Signly Ionized Helium-Helium, William Guy Rich
Low Energy Studies Of The Experimental Elastic Differential Cross-Sections For The Systems Proton-Helium, Proton-Neon And Signly Ionized Helium-Helium, William Guy Rich
Dissertations, Theses, and Masters Projects
No abstract provided.
The Long-Term Model Of Salinity Intrusion Into The Estuarine Rivers, Mary Ann Terese Orzech
The Long-Term Model Of Salinity Intrusion Into The Estuarine Rivers, Mary Ann Terese Orzech
Dissertations, Theses, and Masters Projects
No abstract provided.
Benthic Fish Associations On The Continental Slope Of The Middle Atlantic Bight, Douglas F. Markle
Benthic Fish Associations On The Continental Slope Of The Middle Atlantic Bight, Douglas F. Markle
Dissertations, Theses, and Masters Projects
No abstract provided.
A Comparison Of The Chlorinated Hydrocarbon Content Of Surface And Subsurface Samples In The York River, Virginia, James L. Lake
A Comparison Of The Chlorinated Hydrocarbon Content Of Surface And Subsurface Samples In The York River, Virginia, James L. Lake
Dissertations, Theses, and Masters Projects
No abstract provided.
Iodine Metabolism In Sessile Stages Of Chesapeake Bay Semaeostome Jellyfish, Janet Evelyn Olmon
Iodine Metabolism In Sessile Stages Of Chesapeake Bay Semaeostome Jellyfish, Janet Evelyn Olmon
Dissertations, Theses, and Masters Projects
No abstract provided.
An Investigation Of One And Two State Molecular Systems Based On The Results Of Elastic Differential Scattering Experiments, Stephen Michael Bobbio
An Investigation Of One And Two State Molecular Systems Based On The Results Of Elastic Differential Scattering Experiments, Stephen Michael Bobbio
Dissertations, Theses, and Masters Projects
No abstract provided.
Reactions Of Trichloro(Beta-Diketonato)Titanium(Iv) Complexes With Alcohols In The Presence Of Pyridine, William R. C. Munsey
Reactions Of Trichloro(Beta-Diketonato)Titanium(Iv) Complexes With Alcohols In The Presence Of Pyridine, William R. C. Munsey
Dissertations, Theses, and Masters Projects
No abstract provided.
Chesapeake Bay Bibliography - Volume Ii Virginia Waters, Pamela S. Tennyson, Susan O. Barrick, Frank J. Wojcik, William J. Hargis Jr.
Chesapeake Bay Bibliography - Volume Ii Virginia Waters, Pamela S. Tennyson, Susan O. Barrick, Frank J. Wojcik, William J. Hargis Jr.
Reports
The Chesapeake Bay Bibliography was initiated by the Virginia Institute of Marine Science in response to growing resource management problems of the Chesapeake Bay and its tributaries. With these problems carne the realization that planning and management of such a great natural resource is an overwhelming task requiring the best available information. This bibliography, therefore, was undertaken to document existing sources of information, to help identify research and data gathering needs, and to develop a comprehensive research and information services programs for individuals interested in research on, and management of the natural resources of the Chesapeake Bay region.
This, the …
Inner Shelf Sediments Off Chesapeake Bay. I - General Lithology And Composition, Maynard M. Nichols
Inner Shelf Sediments Off Chesapeake Bay. I - General Lithology And Composition, Maynard M. Nichols
Reports
The sedimentary materials and bottom topography of more than 2400 square miles of the inner continental shelf floor north off the Chesapeake Bay entrance have been surveyed for potential mineral resources. Sediments consist of two principal types: (1) fine sand and (2) medium to coarse sand. The fine sand is grey-colored, subrounded, rich in quartz and relatively 11clean 11 and well sorted. The medium-coarse sand is typically iron-stained, rich in shell and poorly sorted. The fine sand covers inner parts of the shelf floor whereas medium to coarse sand covers seaward parts. Additionally, shell-rich medium to coarse sand occurs on …
Storm-Wave And Storm-Surge Modification Of Virginia's Ocean Coast, Wyman Harrison
Storm-Wave And Storm-Surge Modification Of Virginia's Ocean Coast, Wyman Harrison
Reports
The purpose of this study was to begin work on a method for operational prediction of storm-induced beach changes. The thought was to use wind and storm-surge data that are predicted on a routine basis by the National Weather Service, NOAA, and it was felt that if such a procedure could be developed, it would be possible to provide estimates of beach erosion or deposition as part of routine weather forecasts whenever storms threatened. It was also hoped that it might be possible to make estimates of shoreline erosion during previous years by using historical storm data in the prediction …
Special Purpose Areas In Virginia's Coastal Zone, J. B. Pleasants
Special Purpose Areas In Virginia's Coastal Zone, J. B. Pleasants
Reports
The Virginia Institute of Marine Science is charged with the responsibility of advising state management agencies on matters relating to the environments and resources of the coastal zone of Virginia. Under this broad requirement, we have been specifically assigned the task of recommending an ocean-dumping policy for the Commonwealth. This paper, a survey of specially designated areas in coastal waters of the state, is designed to provide some of the background material required in the development of such a policy.
Investigation Of The Water Table In A Tidal Beach : Final Report, W. Harrison, John D. Boon, L. E. Fausak, C. S. Fang, S. N. Wang
Investigation Of The Water Table In A Tidal Beach : Final Report, W. Harrison, John D. Boon, L. E. Fausak, C. S. Fang, S. N. Wang
Reports
- I. Instrumentation for Measurement of Water Table Fluctuations by John D. Boon, III, and W. Harrison
- II. The Beach Water Table as a Response Variable of the System by L. E. Fausak
- III. Changes in Foreshore Sand Volume: Role of Fluctuations in Water Table and Ocean Still Water Level by W. Harrison
- IV. One-dimensional Finite Element Analysis of the Groundwater Flow by W. Harrison, C. S. Fang, and S. N. Wang
- V. Two-dimensional Finite Element Analysis of the Groundwater Flow by C. S. Fang, S. N. Wang, and W. Harrison
Studies Of The Potential Curve Crossing Problem I. Analysis Of Stueckelberg's Method, W. R. Thorson, John B. Delos, Seth A. Boorstein
Studies Of The Potential Curve Crossing Problem I. Analysis Of Stueckelberg's Method, W. R. Thorson, John B. Delos, Seth A. Boorstein
Arts & Sciences Articles
A detailed critical analysis is made of Stueckelberg's treatment of inelastic transitions at a crossing of two potential curves. Using an asymptotic method analogous to the WKB approximation, Stueckelberg obtained the well-known Landau-Zener-Stueckelberg (LZS) formula for the inelastic transition probability. His method involved the determination of "connection formulas" linking amplitudes associated with his asymptotic approximants on either side of the crossing-point region. Here we show that (a) Stueckelberg's asymptotic approximants are just the WKB approximants for elastic scattering on the adiabatic (noncrossing) potential curves; (b) Stueckelberg's method for obtaining the connection formulas can be put on a rigorous footing, including …
Surface Observations, Ground Truth And Data : Nasa-Usgs Mission 144 : Chesapeake Bay Region, Sept. 22-30, 1970, Maynard M. Nichols
Surface Observations, Ground Truth And Data : Nasa-Usgs Mission 144 : Chesapeake Bay Region, Sept. 22-30, 1970, Maynard M. Nichols
Reports
Surface observations of coastal waters and "ground. truth" data were obtained to aid interpretation and analyses of overflight photography and imagery. Among the broad objectives of the mission was to investigate the potential of high-altitude, multispectral photography as a tool for the improved planning necessary to cope with multidisciplinary problems within the coastal zone, specifically with regard to:
1. The inventory and evaluation of the central Atlantic coastal area natural resources;
2. The assessment of human and natural degradation of these resources;
3. The feasibility of monitoring resource allocation and management, including land use categories and the impact of urbanization …
Groundwater Flow In A Sandy Tidal Beach 1. One-Dimensional Finite Element Analysis, W. Harrison, C. S. Fang, S. N. Wang
Groundwater Flow In A Sandy Tidal Beach 1. One-Dimensional Finite Element Analysis, W. Harrison, C. S. Fang, S. N. Wang
VIMS Articles
A 31-day time series of observations of beach water table and tidal fluctuations was obtained from 13 wells along a profile perpendicular to the shoreline at Virginia Beach, Virginia. Finite element techniques were applied to solve the one-dimensional, unsteady state, nonlinear equation for groundwater movement. For the finite element analysis, the semi-infinite mass (unconfined aquifer) had to be replaced by a finite mass. The boundary conditions were found from the field data by directly solving the flow equation with a finite difference technique. The finite element method, using the variational principle, provided a reasonable solution and afforded economy in computer …
Vertical Distribution Of Estuarine Phytoplankton In The Surface Microlayer And At One Meter, And Fluctuations In Abundance Caused By Surface Adsorption Of Monomolecular Films, Victoria R. Gibson
Vertical Distribution Of Estuarine Phytoplankton In The Surface Microlayer And At One Meter, And Fluctuations In Abundance Caused By Surface Adsorption Of Monomolecular Films, Victoria R. Gibson
Dissertations, Theses, and Masters Projects
A quantitative comparison of the phytoplankton in the surface microlayer of an estuary and that a depth of one meter was made using a Garrett-type screen and a Frautschy bottle for sample collection. Results showed that the surface microlayer contained a significantly greater number of phytoplankton cells than the water at one meter. Species diversity at the surface tended to be somewhat lower than one meter, due to a greater number of individuals of the dominant species. Investigation revealed that the presence of a monomolecular film of slick material absorbed onto the water surface resulted in a decrease in the …
Study Of Channel Sediments, James River & Hampton Roads Area, R. J. Huggett
Study Of Channel Sediments, James River & Hampton Roads Area, R. J. Huggett
Reports
Bottom sediment samples were collected from 3 locations transecting the channel in the lower James and Elizabeth rivers.
Analysis Of Morone Saxatilis And Morone Americanus Spawning And Nursery Area In The York-Pamunkey River, Virginia, Ronald Gilbert Rinaldo
Analysis Of Morone Saxatilis And Morone Americanus Spawning And Nursery Area In The York-Pamunkey River, Virginia, Ronald Gilbert Rinaldo
Dissertations, Theses, and Masters Projects
No abstract provided.
Age And Growth Of The Silver Perch (Bairdiella Chrysura), Scott F. Rhodes
Age And Growth Of The Silver Perch (Bairdiella Chrysura), Scott F. Rhodes
Dissertations, Theses, and Masters Projects
No abstract provided.
Reactions Of The Tin Tetrahalides With 2,4-Pentanedione In The Presence Of Organic Amines, Kwai-Sam Wong
Reactions Of The Tin Tetrahalides With 2,4-Pentanedione In The Presence Of Organic Amines, Kwai-Sam Wong
Dissertations, Theses, and Masters Projects
No abstract provided.