Conference Papers
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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
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Outstanding issues for new geothermal resource assessments
A critical question for the future energy policy of the United States is the extent to which geothermal resources can contribute to an ever-increasing demand for electricity. Electric power production from geothermal sources exceeds that from wind and solar combined, yet the installed capacity falls far short of the geothermal resource base characterized in past assessments, even though the estima
Authors
C.F. Williams, M.J. Reed
Overview of recent DNA vaccine development for fish
Since the first description of DNA vaccines for fish in 1996, numerous studies of genetic immunisation against the rhabdovirus pathogens infectious haematopoietic necrosis virus (IHNV) and viral haemorrhagic septicaemia virus (VHSV) have established their potential as both highly efficacious biologicals and useful basic research tools. Single small doses of rhabdovirus DNA constructs provide extre
Authors
Gael Kurath
Palo Alto Battlefield National Historic Site landscape classification and historical analysis
No abstract available.
Authors
Elijah Ramsey, Yao Y. Yan
Penrose Conference Report: Secular variation in tectonics and allied fields
[No abstract available]
Authors
D. Bradley, J. Dewey
Physical properties of sediment containing methane gas hydrate
A study conducted by the US Geological Survey (USGS) on the formation, behavior, and properties of mixtures of gas hydrate and sediment is presented. The results show that the properties of host material influence the type and quantity of hydrates formed. The presence of hydrate during mechanical shear tests affects the measured sediment pore pressure. Sediment shear strength may be increased more
Authors
W.J. Winters, W.F. Waite, D.H. Mason, L.Y. Gilbert
Physiological characterization of a broad spectrum reductively dechlorinating consortium
A wetland sediment-derived microbial consortium (WBC-2) was developed by the US Geological Survey and propagated in vitro to large quantities by SiREM Laboratory for potential use in bioaugmentation applications. On the basis of bench-scale tests, the consortium could completely dechlorinate 1,1,2,2-tetrachloroethylene, tetrachloroethylene, trichloroethylene, 1,1,2-trichloroethane, cis- and trans-
Authors
M.M. Lorah, E. Majcher, E. Jones, G. Driedger, S. Dworatzek, D. Graves
Polar bear research in the Beaufort Sea 2005
No abstract available.
Authors
Steven C. Amstrup, George M. Durner, E.V. Regehr, G.S. York, T. S. Smith, Steven T. Partridge, David C. Douglas
Potential degradation of water quality by bird feces in and around managed wetlands
No abstract available.
Authors
G.G. Shellenbarger, A.B. Boehm
Potential for calibration of geostationary meteorological satellite imagers using the Moon
Solar-band imagery from geostationary meteorological satellites has been utilized in a number of important applications in Earth Science that require radiometric calibration. Because these satellite systems typically lack on-board calibrators, various techniques have been employed to establish "ground truth", including observations of stable ground sites and oceans, and cross-calibrating with coin
Authors
T.C. Stone, H. H. Kieffer, I.F. Grant
Predicting mining activity with parallel genetic algorithms
We explore several different techniques in our quest to improve the overall model performance of a genetic algorithm calibrated probabilistic cellular automata. We use the Kappa statistic to measure correlation between ground truth data and data predicted by the model. Within the genetic algorithm, we introduce a new evaluation function sensitive to spatial correctness and we explore the idea of e
Authors
S. Talaie, R. Leigh, S.J. Louis, G. L. Raines
Preliminary evaluation of a lake whitefish (Coregonus clupeaformis) bioenergetics model
We conducted a preliminary evaluation of a lake whitefish (Coregonus clupeaformis) bioenergetics model by applying the model to size-at-age data for lake whitefish from northern Lake Michigan. We then compared estimates of gross growth efficiency (GGE) from our bioenergetis model with previously published estimates of GGE for bloater (C. hoyi) in Lake Michigan and for lake whitefish in Quebec. Acc
Authors
Charles P. Madenjian, Steven A. Pothoven, Philip J. Schneeberger, Daniel V. O'Connor, Stephen B. Brandt