Skip to main content
U.S. flag

An official website of the United States government

Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

Filter Total Items: 5599

Rapid differentiation of refined fuels using negative electrospray ionization/mass spectrometry Rapid differentiation of refined fuels using negative electrospray ionization/mass spectrometry

Negative electrospray ionization/MS enabled rapid, specific, and selective screening for unique polar components at parts per million concentrations in commercial hydrocarbon products without extensive sample preparation, separation, chromatography, or quantitation. Commercial fuel types were analyzed with this method, including kerosene, jet fuel, white gas, charcoal lighter fluid, on...
Authors
C.E. Rostad, F. D. Hostettler

Rapid differentiation of refined fuels using negative electrospray ionization/mass spectrometry Rapid differentiation of refined fuels using negative electrospray ionization/mass spectrometry

An application of electrospray ionization/mass spectrometry for identification of various commercially refined fuels using the unique signature of polar components, was investigated. The samples were analyzed by mass spectrometry using negative electrospray on an Agilent Series 1100 liquid chromatograph/mass spectrometer. These analysis were applied to hydrocarbon samples from a large...
Authors
C.E. Rostad, F. D. Hostettler

Real-time seismic monitoring and functionality assessment of a building Real-time seismic monitoring and functionality assessment of a building

This paper presents recent developments and approaches (using GPS technology and real-time double-integration) to obtain displacements and, in turn, drift ratios, in real-time or near real-time to meet the needs of the engineering and user community in seismic monitoring and assessing the functionality and damage condition of structures. Drift ratios computed in near real-time allow...
Authors
M. Çelebi

Recent advances to obtain real - Time displacements for engineering applications Recent advances to obtain real - Time displacements for engineering applications

This paper presents recent developments and approaches (using GPS technology and real-time double-integration) to obtain displacements and, in turn, drift ratios, in real-time or near real-time to meet the needs of the engineering and user community in seismic monitoring and assessing the functionality and damage condition of structures. Drift ratios computed in near real-time allow...
Authors
M. Çelebi

Reliability of reservoir firm yield determined from the historical drought of record Reliability of reservoir firm yield determined from the historical drought of record

The firm yield of a reservoir is typically defined as the maximum yield that could have been delivered without failure during the historical drought of record. In the future, reservoirs will experience droughts that are either more or less severe than the historical drought of record. The question addressed here is what the reliability of such systems will be when operated at the firm...
Authors
S.A. Archfield, R.M. Vogel

Reserve growth of the world's giant oil fields Reserve growth of the world's giant oil fields

Analysis of estimated total recoverable oil volume (field size) of 186 well-known giant oil fields of the world (>0.5 billion bbl of oil, discovered prior to 1981), exclusive of the United States and Canada, demonstrates general increases in field sizes through time. Field sizes were analyzed as a group and within subgroups of the Organization of Petroleum Exporting Countries (OPEC) and...
Authors
T. R. Klett, J. W. Schmoker

Reservoir controling factors in the Karaha-Telaga Bodas geothermal field, Indonesia Reservoir controling factors in the Karaha-Telaga Bodas geothermal field, Indonesia

Karaha - Telaga Bodas geothermal system consists of: 1) a caprock, ranging from several hundred meters to 1600 m thick that is characterized by steep, conductive temperature gradients and low permeabilities; 2) an underlying vapor-dominated zone that extends below sea level; and 3) a deep liquid-dominated zone with measured temperatures up to 353??C. Heat is provided by a 3 km deep...
Authors
M. Nemcok, J.N. Moore, Carl Christensen, R. Allis, T. Powell, B. Murray, G. Nash

Results at Mallik highlight progress in gas hydrate energy resource research and development Results at Mallik highlight progress in gas hydrate energy resource research and development

The recent studies that project the role of gas hydrates in the future energy resource management are reviewed. Researchers have long speculated that gas hydrates could eventually be a commercial resource for the future. A Joint Industry Project led by ChevronTexaco and the US Department of Energy is designed to characterize gas hydrates in the Gulf of Mexico. Countries including Japan...
Authors
T. S. Collett

Seasonal variability of aerosol optical depth over Indian subcontinent Seasonal variability of aerosol optical depth over Indian subcontinent

Ganga basin extends 2000 km E-W and about 400 km N-S and is bounded by Himalayas in the north. This basin is unequivocally found to be affected by high aerosols optical depth (AOD) (>0.6) throughout the year. Himalayas restricts movement of aerosols toward north and as a result dynamic nature of aerosol is seen over the Ganga basin. High AOD in this region has detrimental effects on...
Authors
A.K. Prasad, R.P. Singh, A. Singh, M. Kafatos

Sediment calibration strategies of Phase 5 Chesapeake Bay watershed model Sediment calibration strategies of Phase 5 Chesapeake Bay watershed model

Sediment is a primary constituent of concern for Chesapeake Bay due to its effect on water clarity. Accurate representation of sediment processes and behavior in Chesapeake Bay watershed model is critical for developing sound load reduction strategies. Sediment calibration remains one of the most difficult components of watershed-scale assessment. This is especially true for Chesapeake...
Authors
J. Wu, G.W. Shenk, Jeff P. Raffensperger, D. Moyer, L.C. Linker

Seismic hazard in the South Carolina coastal plain: 2002 update of the USGS national seismic hazard maps Seismic hazard in the South Carolina coastal plain: 2002 update of the USGS national seismic hazard maps

The damaging 1886 moment magnitude ???7 Charleston, South Carolina earthquake is indicative of the moderately likely earthquake activity along this portion of the Atlantic Coast. A recurrence of such an earthquake today would have serious consequences for the nation. The national seismic hazard maps produced by the U.S. Geological Survey (USGS) provide a picture of the levels of seismic...
Authors
C.H. Cramer, T.W. Mays
Was this page helpful?