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Full-Text Articles in Physical Sciences and Mathematics
A Mathematical Model For Small Tidal Streams Capable Of Simulating Both Short-Term And Long-Term Water Quality Variations, Stephen Anthony Williams
A Mathematical Model For Small Tidal Streams Capable Of Simulating Both Short-Term And Long-Term Water Quality Variations, Stephen Anthony Williams
Dissertations, Theses, and Masters Projects
No abstract provided.
On The Occurrence And Origins Of Hopanoids In The Chesapeake Bay (Maryland, Virginia), Gullaya Wattayakorn
On The Occurrence And Origins Of Hopanoids In The Chesapeake Bay (Maryland, Virginia), Gullaya Wattayakorn
Dissertations, Theses, and Masters Projects
Analyses of surface sediment samples from the Chesapeake Bay and sediment cores from the James and the Potomac River showed that pentacyclic triterpenoids of the hopanoid skeleton were ubiquitously present in all samples. The hopanoids have been identified and quantified by gas chromatographic retention data obtained on SE-52 stationary phase, and mass spectral comparisons with the branched/cyclic fraction of a Lorraine coal extract as well as published data from authentic standards. Hopanoid acids are of extended 17(beta)(H), 21(beta)(H)-structure, ranging from C(,31) to C(,33). The 17(beta)(H), 21(beta)(H)-bishomohopanoic acid (C(,32)) is always the major acid found in the samples. All acids were …
Evaluation Of Sediment Sources And Sinks: A Sediment Budget For The Rappahannock River Estuary, Craig G. Lukin
Evaluation Of Sediment Sources And Sinks: A Sediment Budget For The Rappahannock River Estuary, Craig G. Lukin
Dissertations, Theses, and Masters Projects
No abstract provided.