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Articles 4051 - 4080 of 4602
Full-Text Articles in Physical Sciences and Mathematics
Bioaccumulation And Effects Of Kepone On Spot, Leiostomus Xanthurus, Linda L. Stehlik
Bioaccumulation And Effects Of Kepone On Spot, Leiostomus Xanthurus, Linda L. Stehlik
Dissertations, Theses, and Masters Projects
No abstract provided.
Behavioral Responses Of Decapod Larvae To Light, Salinity And Chlorine, Jerome E. Illowsky
Behavioral Responses Of Decapod Larvae To Light, Salinity And Chlorine, Jerome E. Illowsky
Dissertations, Theses, and Masters Projects
No abstract provided.
Improved Characterization Of Silicon-Silicon-Dioxide Interfaces, Pin Su
Improved Characterization Of Silicon-Silicon-Dioxide Interfaces, Pin Su
Dissertations, Theses, and Masters Projects
Silicon is the heart of modern semiconductor devices. The dominance of Si in semiconductor technology depends on the superior quality and properties of thermally grown SiO(,2) compared with the oxide that can be placed on any other semiconductor. For this reason, Si-SiO(,2) interface has been an interesting and important research subject for many years.;The well established quasistatic and conductance methods used in the study of the Si-SiO(,2) interface are improved by using (i) an effectively thin composite insulator, (ii) low carrier concentration substrates, and most importantly (iii) low-level illumination at a wavelength that creates electron-hole pairs. Accurate measurements of both …
Resource Use By Amphipoda (Crustacea: Peracarida) On The Outer Continental Shelf Of The Middle Atlantic Bight: Implications To Community Structure, Linda C. Schaffner
Resource Use By Amphipoda (Crustacea: Peracarida) On The Outer Continental Shelf Of The Middle Atlantic Bight: Implications To Community Structure, Linda C. Schaffner
Dissertations, Theses, and Masters Projects
Benthic communities on the outer continental shelf of the Middle Atlantic Bight are characterized by abundant populations of amphipods in the families Ampeliscidae and Corophiidae. Members of these families occupy tubes at or near the sediment surface and, thus, potentially compete with each other for spatial and trophic resources. This study examines the spatial, temporal and trophic resource use of six numerically dominant species in these families as a means of assessing the relative importance of competition as a structuring force in outer shelf benthic communities.
Analysis of abundance data and the use of discriminant analysis to relate abundance to …
Age Determination And Growth Of The Blueback Herring, Alosa Aestivalis, Jack Gerald Travelstead
Age Determination And Growth Of The Blueback Herring, Alosa Aestivalis, Jack Gerald Travelstead
Dissertations, Theses, and Masters Projects
No abstract provided.
An Analysis Of Parasite Communities Of The Atlantic Croaker, Micropogonias Undulatus (Linnaeus), Within The Chesapeake Bay, David A. Benner
An Analysis Of Parasite Communities Of The Atlantic Croaker, Micropogonias Undulatus (Linnaeus), Within The Chesapeake Bay, David A. Benner
Dissertations, Theses, and Masters Projects
No abstract provided.
Refinery Siting And The Regulatory Process: A Case Study In Coastal Zone Management, John Garretson Brokaw
Refinery Siting And The Regulatory Process: A Case Study In Coastal Zone Management, John Garretson Brokaw
Dissertations, Theses, and Masters Projects
No abstract provided.
Aspects Of Vertical Distribution And Ecology Of The Dominant Meso- And Bathypelagic Fishes From The Norfolk Canyon Region, John V. Gartner
Aspects Of Vertical Distribution And Ecology Of The Dominant Meso- And Bathypelagic Fishes From The Norfolk Canyon Region, John V. Gartner
Dissertations, Theses, and Masters Projects
No abstract provided.
The Life History Of The Cownose Ray, Rhinoptera Bonasus (Mitchill 1815), In Lower Chesapeake Bay, With Notes On The Management Of The Species, Joseph W. Smith
The Life History Of The Cownose Ray, Rhinoptera Bonasus (Mitchill 1815), In Lower Chesapeake Bay, With Notes On The Management Of The Species, Joseph W. Smith
Dissertations, Theses, and Masters Projects
No abstract provided.
Coral-Nutrient Relationships, Lawrence J. Pastor
Coral-Nutrient Relationships, Lawrence J. Pastor
Dissertations, Theses, and Masters Projects
No abstract provided.
Morphology And Development Of Hatchery Cultured American Shad (Alosa Sapidissima Wilson), With A Comparison Between Field Sampled And Cultured, James Roy Johnson
Morphology And Development Of Hatchery Cultured American Shad (Alosa Sapidissima Wilson), With A Comparison Between Field Sampled And Cultured, James Roy Johnson
Dissertations, Theses, and Masters Projects
No abstract provided.
Uptake, Distribution, Metabolism And Clearance Of Kepone By Channel Catfish (Ictalurus Punctatus), Peter A. Vanveld
Uptake, Distribution, Metabolism And Clearance Of Kepone By Channel Catfish (Ictalurus Punctatus), Peter A. Vanveld
Dissertations, Theses, and Masters Projects
No abstract provided.
Pelagic Amphipods (Amphipoda: Hyperiidea) Of The Continental Shelf In The Middle Atlantic Bight, Russell Allen Short
Pelagic Amphipods (Amphipoda: Hyperiidea) Of The Continental Shelf In The Middle Atlantic Bight, Russell Allen Short
Dissertations, Theses, and Masters Projects
No abstract provided.
Seasonal Changes In The Growth And Structure Of The Diatom Asterionella Formosa Hassall In Lake Matoaka, Virginia, Kathy Joyce Lundgren
Seasonal Changes In The Growth And Structure Of The Diatom Asterionella Formosa Hassall In Lake Matoaka, Virginia, Kathy Joyce Lundgren
Dissertations, Theses, and Masters Projects
No abstract provided.
Most Probable Magnetohydrostatic Equilibria For Tokamaks And Reversed Field Pinches, John Joseph Ambrosiano
Most Probable Magnetohydrostatic Equilibria For Tokamaks And Reversed Field Pinches, John Joseph Ambrosiano
Dissertations, Theses, and Masters Projects
The determination of magnetohydrostatic equilibria usually requires that two of the equilibrium functions be given. as there is usually no a priori basis for specifying the form of these two functions, the functions and the equilibria they determine may be considered random.;In this dissertation, the author reviews a recent statistical method for determining the equilibrium of an axially symmetric cylindrical plasma which is most probable (in the maximum entropy sense) given four global constraints (i.e., energy, magnetic helicity, longitudinal magnetic flux, and longitudinal current flux). Previous results from this model have been limited to non-negative random equilibrium functions (B(,z), J(,z), …
Pl/99, A Mid-Level Programming Language For The Tms9900 Microprocessor, Kenneth B. Walkley
Pl/99, A Mid-Level Programming Language For The Tms9900 Microprocessor, Kenneth B. Walkley
Dissertations, Theses, and Masters Projects
No abstract provided.
The Osmotic Fragility Of Red Blood Cells Of Marine Animals: A Comparative Study, Robert Demanche
The Osmotic Fragility Of Red Blood Cells Of Marine Animals: A Comparative Study, Robert Demanche
Dissertations, Theses, and Masters Projects
No abstract provided.
Ecological Effects Of Experimental Oil Spills In Eastern Coastal Plain Estuaries, Michael E. Bender, E. A. Shearls, R. J. Huggett, Et Al
Ecological Effects Of Experimental Oil Spills In Eastern Coastal Plain Estuaries, Michael E. Bender, E. A. Shearls, R. J. Huggett, Et Al
Reports
- Ecological effects / M.E. Bender, E.A. Shearls & R.J. Huggett --
- Chemical fate / R.H. Bieri, M.K. Cueman & V.C. Stamoudis --
- Microbial responses / H. Kator.
A Proposed Work Plan For Continuing 208 Studies In The Hampton Roads Area Involving The Lynnhaven River And Northwest River Drainage Basins, Bruce Neilson, Linda Kilch
A Proposed Work Plan For Continuing 208 Studies In The Hampton Roads Area Involving The Lynnhaven River And Northwest River Drainage Basins, Bruce Neilson, Linda Kilch
Reports
No abstract provided.
Heavy Metal Inventory Of Suspended Sediment And Fluid Mud In Chesapeake Bay, Richard Harris, Maynard M. Nichols, Galen Thompson, John Banacki, George Vadas
Heavy Metal Inventory Of Suspended Sediment And Fluid Mud In Chesapeake Bay, Richard Harris, Maynard M. Nichols, Galen Thompson, John Banacki, George Vadas
Reports
Heavy metals have been found associated with suspended material, sediments and fluid mud in the Chesapeake Bay. A series of field observations were made along the Bay axis to determine the metal concentrations and their distributions at relatively high and at average river inflow between March 27-April 9 and May 2-10, 1979.
Metal concentrations in suspended material per unit volume of water relate to the concentrations of suspended material. They are higher in the zone of the turbidity maximum than landward in river water or seaward in estuarine water. Thus, metals associated with suspended material tend to accumulate in the …
The Virginian Sea Bibliography, Thomas M. Armitage, William J. Hargis Jr.
The Virginian Sea Bibliography, Thomas M. Armitage, William J. Hargis Jr.
Reports
The bibliography of the Virginian Sea is a compendium of literature and environmental data concerning the Middle Atlantic Bight region of the Western North Atlantic - or the United States east coast. The geographical coverage of this bibliography ineludes that region extending from 41° N latitude to 36° N latitude and out 200 miles from the coastal headlands. This volume represents the first step of an effort undertaken by the Virginia Institute of Marine Science to assess the present status of knowledge concerning the physical and chemical environment, biology, and fisheries of the Virginian Sea. We do not put forth …
The Chesapeake, A Boating Guide To Weather, Jon Lucy, Terry Ritter, Jerry Larue
The Chesapeake, A Boating Guide To Weather, Jon Lucy, Terry Ritter, Jerry Larue
Reports
No abstract provided.
Applications Of Remote Sensing To Estuarine Management : Final Report And Annual Report Number 7, John C. Munday, Hayden H. Gordon
Applications Of Remote Sensing To Estuarine Management : Final Report And Annual Report Number 7, John C. Munday, Hayden H. Gordon
Reports
Remote sensing techniques have been applied to problems in estuarine management in the seventh and final year of a NASA grant. A chromaticity technique for multi-date Landsat measurement of suspended sediment has been verified and made operational, and applied to sedimentation analysis of the ·Bay of Fundy Tidal Power Project. Dye-buoy photogrannnetry has been used to measure currents at depth and analyze suspended sediment plumes from hydraulic · dredging. Wetland permit sites and beach erosion site's have been evaluated with aerial photography. Submerged aquatic vegetation has been mapped with tide- and wind-synchronized color photography. Virginia state resource monitoring needs have …
Vims-Blm Second Order Wave Climate Model And Wave Climatology Of Baltimore Canyon Trough Shelf Area, Victor Goldsmith
Vims-Blm Second Order Wave Climate Model And Wave Climatology Of Baltimore Canyon Trough Shelf Area, Victor Goldsmith
Reports
The Wave Climate Model of the Baltimore Canyon Trough Shelf area encompassing the designated lease blocks was extended, refined, and comparisons made with real wave data, as part of this year's contract (Figures 15-la and 15-lb). This modified model w.as produced to refine the 1975 model so that more definitive statements and interpretations could be concluded, based on more detailed data, in the evaluation of the baseline data. A set of computer-generated graphics utilizing a greater depth data point density (0.25 NM), to al.low site-specific evaluation of conditions within the lease block area, were produced.
Acute Biological Effects Of Chemically Dispersed Oil Spillage : Final Report To The American Petroleum Institute, George C. Grant, Howard I. Kator, Paul L. Zubkoff
Acute Biological Effects Of Chemically Dispersed Oil Spillage : Final Report To The American Petroleum Institute, George C. Grant, Howard I. Kator, Paul L. Zubkoff
Reports
Primary productivity, heterotrophic potential, chlorophyll i! and phaeophytin, ATP, and direct bacterial counts were measured in the sea surface layer under controlled spills of La Rosa and Murban crude oils following immediate dispersal with the EXXON dispersant, Corexit 9527. Tests were conducted off New York on November 9, 1978.
The response of productivity to dispersed oil appeared as an initial increase in rates, a reduction to minimal rates 1-2 hours after dispersion, and a return to pre-spill rates after 3 hours. Comparison of productivity measurements from the two tests suggested a more efficient and rapid dispersion of the somewhat lighter …
Diabatic And Adiabatic Representations For Atomic Collision Processes, John B. Delos, W. R. Thorson
Diabatic And Adiabatic Representations For Atomic Collision Processes, John B. Delos, W. R. Thorson
Arts & Sciences Articles
ABSTRACT A consistent general definition of diabatic representations has not previously been given, even though many practical examples of such representations have been constructed for specific problems. Such a definition is provided in this paper. Beginning with a classical trajectory formulation, we describe the form and behavior of velocity‐dependent couplings in slow collisions, including the effects of electron‐translation factors (ETF’s). We compare the couplings arising from atomic representations and atomic ETF’s with those arising from molecular representations and ’’switching function’’ ETF’s. We show that a unique set of switching functions makes the two descriptions identical in their effects. We then …
Kepone® Residues In Chesapeake Bay Biota, M. E. Bender, R. J. Huggett, W. J. Hargis Jr.
Kepone® Residues In Chesapeake Bay Biota, M. E. Bender, R. J. Huggett, W. J. Hargis Jr.
VIMS Books and Book Chapters
Oysters from the James displayed variations in Kepone residue levels related to water temperature and their spawning cycle. Oyster depuralion rates were related to temperature. In summer the "biological half. life" of Kepone in oysters was about one week, while during the winter about 40 days were required for residue levels to decline by 50 per cent. Residues in blue crabs varied as a function of sex, males having considerably higher residues than females. Fin fish levels from the James varied greatly, with residue levels being dependent on species and length of residence for migratory fishes .. Average Kepone residues …
Historical Evolution Of Coastal Sand Dunes On Currituck Spit, Virginia/North Carolina, Harold F. Hennigar
Historical Evolution Of Coastal Sand Dunes On Currituck Spit, Virginia/North Carolina, Harold F. Hennigar
Dissertations, Theses, and Masters Projects
No abstract provided.
Problems In Chesapeake Bay Of Mutual Interest To The State Of Maryland And The Commonwealth Of Virginia, J. Claiborne Jones, John B. Pleasants
Problems In Chesapeake Bay Of Mutual Interest To The State Of Maryland And The Commonwealth Of Virginia, J. Claiborne Jones, John B. Pleasants
Reports
The Chesapeake Bay, one of the largest and most productive estuaries in the world, represents a vast natural, economic, and social resource for the citizens of the surrounding land area. The Bay is many things to many people. Much of the economic development of the entire region has been based upon the natural transportation network and the fisheries industry provided by the Bay and its tributaries. The Bay system also offers a wide variety of water-oriented recreational opportunities, a source of water for both residential and industrial users, and a site for the final disposal of many waste products. The …
Shoreline Situation Report King George And Caroline Counties, Lynne C. Morgan, Dennis W. Owen, Nancy M. Strum, Robert J. Byrne, Carl H. Hobbs Iii
Shoreline Situation Report King George And Caroline Counties, Lynne C. Morgan, Dennis W. Owen, Nancy M. Strum, Robert J. Byrne, Carl H. Hobbs Iii
Reports
No abstract provided.