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1

Use of Geophysical Techniques to Characterize Fluid Flow in a...  

Broader source: Energy.gov (indexed) [DOE]

to Geothermal Prospecting Joint inversion of electrical and seismic data for Fracture char. and Imaging of Fluid Flow in Geothermal Systems Use of Geophysical Techniques...

2

Use of Geophysical Techniques to Characterize Fluid Flow in a...  

Broader source: Energy.gov (indexed) [DOE]

and test combined geophysical techniques to characterize fluid flow, in relation to fracture orientations and fault distributions in a geothermal system. Average Overall Score:...

3

Geophysical Techniques for Monitoring CO2 Movement During Sequestration  

SciTech Connect (OSTI)

The relative merits of the seismic, gravity, and electromagnetic (EM) geophysical techniques are examined as monitoring tools for geologic sequestration of carbon dioxide (CO{sub 2}). This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques for two synthetic modeling scenarios. The first scenario represents combined CO{sub 2} enhanced oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. EOR/sequestration projects in general and Schrader Bluff in particular represent relatively thin injection intervals with multiple fluid components (oil, hydrocarbon gas, brine, and CO{sub 2}). This model represents the most difficult end member of a complex spectrum of possible sequestration scenarios. The time-lapse performance of seismic, gravity, and EM techniques are considered for the Schrader Bluff model. The second scenario is a gas field that in general resembles conditions of Rio Vista reservoir in the Sacramento Basin of California. Surface gravity, and seismic measurements are considered for this model.

Erika Gasperikova; G. Michael Hoversten

2005-11-15T23:59:59.000Z

4

Review of Geophysical Techniques to Define the Spatial Distribution of Subsurface Properties or Contaminants  

SciTech Connect (OSTI)

This is a letter report to Fluor Hanford, Inc. The purpose of this report is to summarize state-of-the-art, minimally intrusive geophysical techniques that can be used to clarify subsurface geology, structure, moisture, and chemical composition. The technology review focused on geophysical characterization techniques that provide two- or three-dimensional information about the spatial distribution of subsurface properties and/or contaminants.

Murray, Christopher J.; Last, George V.; Truex, Michael J.

2005-08-22T23:59:59.000Z

5

The Dynamics of Tectonic Tremor Throughout the Seismic Cycle 1. Geophysics Group, Los Alamos National Laboratory  

E-Print Network [OSTI]

Studies, Los Alamos National Laboratory 3. United States Geological Survey, Menlo Park 4. DepartmentThe Dynamics of Tectonic Tremor Throughout the Seismic Cycle 1. Geophysics Group, Los Alamos

Daub,Eric G.

6

Investigation of novel geophysical techniques for monitoring CO2 movement during sequestration  

SciTech Connect (OSTI)

Cost effective monitoring of reservoir fluid movement during CO{sub 2} sequestration is a necessary part of a practical geologic sequestration strategy. Current petroleum industry seismic techniques are well developed for monitoring production in petroleum reservoirs. The cost of time-lapse seismic monitoring can be born because the cost to benefit ratio is small in the production of profit making hydrocarbon. However, the cost of seismic monitoring techniques is more difficult to justify in an environment of sequestration where the process produces no direct profit. For this reasons other geophysical techniques, which might provide sufficient monitoring resolution at a significantly lower cost, need to be considered. In order to evaluate alternative geophysical monitoring techniques we have undertaken a series of numerical simulations of CO{sub 2} sequestration scenarios. These scenarios have included existing projects (Sleipner in the North Sea), future planned projects (GeoSeq Liberty test in South Texas and Schrader Bluff in Alaska) as well as hypothetical models based on generic geologic settings potentially attractive for CO{sub 2} sequestration. In addition, we have done considerable work on geophysical monitoring of CO{sub 2} injection into existing oil and gas fields, including a model study of the Weyburn CO{sub 2} project in Canada and the Chevron Lost Hills CO{sub 2} pilot in Southern California (Hoversten et al. 2003). Although we are specifically interested in considering ''novel'' geophysical techniques for monitoring we have chosen to include more traditional seismic techniques as a bench mark so that any quantitative results derived for non-seismic techniques can be directly compared to the industry standard seismic results. This approach will put all of our finding for ''novel'' techniques in the context of the seismic method and allow a quantitative analysis of the cost/benefit ratios of the newly considered methods compared to the traditional, more expensive, seismic technique. The Schrader Bluff model was chosen as a numerical test bed for quantitative comparison of the spatial resolution of various geophysical techniques being considered for CO{sub 2} sequestration monitoring. We began with a three dimensional flow simulation model provided by BP Alaska of the reservoir and developed a detailed rock-properties model from log data that provides the link between the reservoir parameters (porosity, pressure, saturations, etc.) and the geophysical parameters (velocity, density, electrical resistivity). The rock properties model was used to produce geophysical models from the flow simulations.

Hoversten, G. Michael; Gasperikova, Erika

2003-10-31T23:59:59.000Z

7

Brittle and Ductile Friction and the Physics of Tectonic Tremor 1. Geophysics Group, Los Alamos National Laboratory  

E-Print Network [OSTI]

for Nonlinear Studies, Los Alamos National Laboratory 3. United States Geological Survey, Menlo Park 4Brittle and Ductile Friction and the Physics of Tectonic Tremor 1. Geophysics Group, Los Alamos

Daub,Eric G.

8

Use of Geophysical Techniques to Characterize Fluid Flow in a Geothermal Reservoir  

Broader source: Energy.gov [DOE]

Project objectives: Joint inversion of geophysical data for ground water flow imaging; Reduced the cost in geothermal exploration and monitoring; & Combined passive and active geophysical methods.

9

Karst characterization in a semi-arid region using gravity, seismic, and resistivity geophysical techniques.  

SciTech Connect (OSTI)

We proposed to customize emerging in situ geophysical monitoring technology to generate time-series data during sporadic rain events in a semi-arid region. Electrodes were to be connected to wireless %5Cnodes%22 which can be left in the eld for many months. Embedded software would then increase sampling frequency during periods of rainfall. We hypothesized that this contrast between no-volume ow in karst passageways dur- ing dry periods and partial- or saturated-volume ow during a rain event is detectable by these Wireless Sensor Network (WSN) geophysical nodes, we call this a Wireless Resistivity Network (WRN). The development of new methodologies to characterize semi-arid karst hydrology is intended to augment Sandia National Laboratorys mission to lead e orts in energy technologies, waste disposal and climate security by helping to identify safe and secure regions and those that are at risk. Development and initial eld testing identi ed technological barriers to using WRNs for identifying semi-arid karst, exposing R&D which can be targeted in the future. Gravity, seismic, and resis- tivity surveys elucidated how each technique might e ectively be used to characterize semi-arid karst. This research brings to light the importance and challenges with char- acterizing semi-arid karst through a multi-method geophysical study. As there have been very few studies with this emphasis, this study has expanded the body of practical experience needed to protect the nations water and energy security interests.

Barnhart, Kevin Scott

2013-10-01T23:59:59.000Z

10

Estimating the hydraulic conductivity at the South Oyster Site from geophysical tomographic data using Bayesian techniques  

E-Print Network [OSTI]

Estimating the hydraulic conductivity at the South Oyster Site from geophysical tomographic data velocity for hydraulic conductivity estimation at the South Oyster Site, using a Bayesian framework. Since site- specific relations between hydraulic conductivity and geophysical properties are often nonlinear

Hubbard, Susan

11

TESTING GROUND BASED GEOPHYSICAL TECHNIQUES TO REFINE ELECTROMAGNETIC SURVEYS NORTH OF THE 300 AREA HANFORD WASHINGTON  

SciTech Connect (OSTI)

Airborne electromagnetic (AEM) surveys were flown during fiscal year (FY) 2008 within the 600 Area in an attempt to characterize the underlying subsurface and to aid in the closure and remediation design study goals for the 200-PO-1 Groundwater Operable Unit (OU). The rationale for using the AEM surveys was that airborne surveys can cover large areas rapidly at relatively low costs with minimal cultural impact, and observed geo-electrical anomalies could be correlated with important subsurface geologic and hydrogeologic features. Initial interpretation of the AEM surveys indicated a tenuous correlation with the underlying geology, from which several anomalous zones likely associated with channels/erosional features incised into the Ringold units were identified near the River Corridor. Preliminary modeling resulted in a slightly improved correlation but revealed that more information was required to constrain the modeling (SGW-39674, Airborne Electromagnetic Survey Report, 200-PO-1 Groundwater Operable Unit, 600 Area, Hanford Site). Both time-and frequency domain AEM surveys were collected with the densest coverage occurring adjacent to the Columbia River Corridor. Time domain surveys targeted deeper subsurface features (e.g., top-of-basalt) and were acquired using the HeliGEOTEM{reg_sign} system along north-south flight lines with a nominal 400 m (1,312 ft) spacing. The frequency domain RESOLVE system acquired electromagnetic (EM) data along tighter spaced (100 m [328 ft] and 200 m [656 ft]) north-south profiles in the eastern fifth of the 200-PO-1 Groundwater OU (immediately adjacent to the River Corridor). The overall goal of this study is to provide further quantification of the AEM survey results, using ground based geophysical methods, and to link results to the underlying geology and/or hydrogeology. Specific goals of this project are as follows: (1) Test ground based geophysical techniques for the efficacy in delineating underlying geology; (2) Use ground measurements to refine interpretations of AEM data; and (3) Improve the calibration and correlation of AEM information. The potential benefits of this project are as follows: (1) Develop a tool to map subsurface units at the Hanford Site in a rapid and cost effective manner; (2) Map groundwater pathways within the River Corridor; and (3) Aid development of the conceptual site model. If anomalies observed in the AEM data can be correlated with subsurface geology, then the rapid scanning and non-intrusive capabilities provided by the airborne surveys can be used at the Hanford Site to screen for areas that warrant further investigation.

PETERSEN SW

2010-12-02T23:59:59.000Z

12

New Geophysical Technique for Mineral Exploration and Mineral Discrimination Based on Electromagnetic Methods  

SciTech Connect (OSTI)

The research during the first two years of the project was focused on developing the foundations of a new geophysical technique for mineral exploration and mineral discrimination, based on electromagnetic (EM) methods. The developed new technique is based on examining the spectral induced polarization effects in electromagnetic data using effective-medium theory and advanced methods of 3-D modeling and inversion. The analysis of IP phenomena is usually based on models with frequency dependent complex conductivity distribution. In this project, we have developed a rigorous physical/mathematical model of heterogeneous conductive media based on the effective-medium approach. The new generalized effective-medium theory of IP effect (GEMTIP) provides a unified mathematical method to study heterogeneity, multi-phase structure, and polarizability of rocks. The geoelectrical parameters of a new composite conductivity model are determined by the intrinsic petrophysical and geometrical characteristics of composite media: mineralization and/or fluid content of rocks, matrix composition, porosity, anisotropy, and polarizability of formations. The new GEMTIP model of multi-phase conductive media provides a quantitative tool for evaluation of the type of mineralization, and the volume content of different minerals using electromagnetic data. We have developed a 3-D EM-IP modeling algorithm using the integral equation (IE) method. Our IE forward modeling software is based on the contraction IE method, which improves the convergence rate of the iterative solvers. This code can handle various types of sources and receivers to compute the effect of a complex resistivity model. We have demonstrated that the generalized effective-medium theory of induced polarization (GEMTIP) in combination with the IE forward modeling method can be used for rock-scale forward modeling from grain-scale parameters. The numerical modeling study clearly demonstrates how the various complex resistivity models manifest differently in the observed EM data. These modeling studies lay a background for future development of the IP inversion method, directed at determining the electrical conductivity and the intrinsic chargeability distributions, as well as the other parameters of the relaxation model simultaneously. The new technology introduced in this project can be used for the discrimination between uneconomic mineral deposits and the location of zones of economic mineralization and geothermal resources.

Michael S. Zhdanov

2009-03-09T23:59:59.000Z

13

New Geophysical Technique for Mineral Exploration and Mineral Discrimination Based on Electromagnetic Methods  

SciTech Connect (OSTI)

The research during the first year of the project was focused on developing the foundations of a new geophysical technique for mineral exploration and mineral discrimination, based on electromagnetic (EM) methods. The proposed new technique is based on examining the spectral induced polarization effects in electromagnetic data using modern distributed acquisition systems and advanced methods of 3-D inversion. The analysis of IP phenomena is usually based on models with frequency dependent complex conductivity distribution. One of the most popular is the Cole-Cole relaxation model. In this progress report we have constructed and analyzed a different physical and mathematical model of the IP effect based on the effective-medium theory. We have developed a rigorous mathematical model of multi-phase conductive media, which can provide a quantitative tool for evaluation of the type of mineralization, using the conductivity relaxation model parameters. The parameters of the new conductivity relaxation model can be used for discrimination of the different types of rock formations, which is an important goal in mineral exploration. The solution of this problem requires development of an effective numerical method for EM forward modeling in 3-D inhomogeneous media. During the first year of the project we have developed a prototype 3-D IP modeling algorithm using the integral equation (IP) method. Our IE forward modeling code INTEM3DIP is based on the contraction IE method, which improves the convergence rate of the iterative solvers. This code can handle various types of sources and receivers to compute the effect of a complex resistivity model. We have tested the working version of the INTEM3DIP code for computer simulation of the IP data for several models including a southwest US porphyry model and a Kambalda-style nickel sulfide deposit. The numerical modeling study clearly demonstrates how the various complex resistivity models manifest differently in the observed EM data. These modeling studies lay a background for future development of the IP inversion method, directed at determining the electrical conductivity and the intrinsic chargeability distributions, as well as the other parameters of the relaxation model simultaneously. The new technology envisioned in this proposal, will be used for the discrimination of different rocks, and in this way will provide an ability to distinguish between uneconomic mineral deposits and the location of zones of economic mineralization and geothermal resources.

Michael S. Zhdanov

2005-03-09T23:59:59.000Z

14

SAGE, Summer of Applied Geophysical Experience  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

program . Description teaches modern geophysical exploration techniques: seismic reflection and refraction, gravity and magnetics, electromagnetics (including...

15

WEST COAST REGIONAL CARBON SEQUESTRATION PARTNERSHIP - REPORT ON GEOPHYSICAL TECHNIQUES FOR MONITORING CO2 MOVEMENT DURING SEQUESTRATION  

SciTech Connect (OSTI)

The relative merits of the seismic, gravity, and electromagnetic (EM) geophysical techniques are examined as monitoring tools for geologic sequestration of CO{sub 2}. This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques on two synthetic modeling scenarios. The first scenario represents combined CO{sub 2} enhance oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. EOR/sequestration projects in general and Schrader Bluff in particular represent relatively thin injection intervals with multiple fluid components (oil, hydrocarbon gas, brine, and CO{sub 2}). This model represents the most difficult end member of a complex spectrum of possible sequestration scenarios. The time-lapse performance of seismic, gravity, and EM techniques are considered for the Schrader Bluff model. The second scenario is a gas field that in general resembles conditions of Rio Vista reservoir in the Sacramento Basin of California. Surface gravity, and seismic measurements are considered for this model.

Gasperikova, Erika; Gasperikova, Erika; Hoversten, G. Michael

2005-10-01T23:59:59.000Z

16

A field test of electromagnetic geophysical techniques for locating simulated in situ mining leach solution  

SciTech Connect (OSTI)

The US Bureau of Mines, The University of Arizona, Sandia National Laboratories, and Zonge Engineering and Research Organization, Inc., conducted cooperative field tests of six electromagnetic (EM) geophysical methods to compare their effectiveness in locating a brine solution simulating in situ leach solution or a high-conductivity plume of contamination. The brine was approximately 160 m below the surface. The testsite was the University's San Xavier experimental mine near Tucson, AZ. Geophysical surveys using surface and surface-borehole, time-domain electromagnetic (TEM) induction; surface controlled-source audiofrequency magnetotellurics (CSAMT); surface-borehole, frequency-domain electromagnetic (FEM) induction; crosshole FEM; and surface magnetic field ellipticity were conducted before and during brine injection. The surface TEM data showed a broad decrease in resistivity. CSAMT measurements with the conventional orientation did not detect the brine, but measurements with another orientation indicated some decrease in resistivity. The surface-borehole and crosshole methods located a known fracture and other fracture zones inferred from borehole induction logs. Surface magnetic field ellipticity data showed a broad decrease in resistivity at depth following brine injection.

Tweeton, D.R.; Hanson, J.C.; Friedel, M.J.; Sternberg, B.K.; Dahl, L.J.

1994-01-01T23:59:59.000Z

17

Integrated geophysical study of near-surface faults in the Wilcox Group, Texas, with application to lignite mining  

E-Print Network [OSTI]

are exposed. Several geophysical tools, namely magnetics, frequency and time domain electromagnetics (FEM and TEM), ground penetrating radar (GPR) as well as seismic refraction were tested in an attempt to qualitatively determine the most efficient...

Satti, Sara A

2000-01-01T23:59:59.000Z

18

DETECTION OF HISTORICAL PIPELINE LEAK PLUMES USING NON-INTRUSIVE SURFACE-BASED GEOPHYSICAL TECHNIQUES AT THE HANFORD NUCLEAR SITE WASHINGTON USA  

SciTech Connect (OSTI)

Historical records from the Department of Energy Hanford Nuclear Reservation (in eastern WA) indicate that ruptures in buried waste transfer pipelines were common between the 1940s and 1980s, which resulted in unplanned releases (UPRs) of tank: waste at numerous locations. A number of methods are commercially available for the detection of active or recent leaks, however, there are no methods available for the detection of leaks that occurred many years ago. Over the decades, leaks from the Hanford pipelines were detected by visual observation of fluid on the surface, mass balance calculations (where flow volumes were monitored), and incidental encounters with waste during excavation or drilling. Since these detection methods for historic leaks are so limited in resolution and effectiveness, it is likely that a significant number of pipeline leaks have not been detected. Therefore, a technology was needed to detect the specific location of unknown pipeline leaks so that characterization technologies can be used to identify any risks to groundwater caused by waste released into the vadose zone. A proof-of-concept electromagnetic geophysical survey was conducted at an UPR in order to image a historical leak from a waste transfer pipeline. The survey was designed to test an innovative electromagnetic geophysical technique that could be used to rapidly map the extent of historical leaks from pipelines within the Hanford Site complex. This proof-of-concept test included comprehensive testing and analysis of the transient electromagnetic method (TEM) and made use of supporting and confirmatory geophysical methods including ground penetrating radar, magnetics, and electrical resistivity characterization (ERC). The results for this initial proof-of-concept test were successful and greatly exceeded the expectations of the project team by providing excellent discrimination of soils contaminated with leaked waste despite the interference from an electrically conductive pipe.

SKORSKA MB; FINK JB; RUCKER DF; LEVITT MT

2010-12-02T23:59:59.000Z

19

Results of Tank-Leak Detection Demonstration Using Geophysical Techniques at the Hanford Mock Tank Site-Fiscal Year 2001  

SciTech Connect (OSTI)

During July and August of 2001, Pacific Northwest National Laboratory (PNNL), hosted researchers from Lawrence Livermore and Lawrence Berkeley National laboratories, and a private contractor, HydroGEOPHYSICS, Inc., for deployment of the following five geophysical leak-detection technologies at the Hanford Site Mock Tank in a Tank Leak Detection Demonstration (TLDD): (1) Electrical Resistivity Tomography (ERT); (2) Cross-Borehole Electromagnetic Induction (CEMI); (3) High-Resolution Resistivity (HRR); (4) Cross-Borehole Radar (XBR); and (5) Cross-Borehole Seismic Tomography (XBS). Under a ''Tri-party Agreement'' with Federal and state regulators, the U.S. Department of Energy will remove wastes from single-shell tanks (SSTs) and other miscellaneous underground tanks for storage in the double-shell tank system. Waste retrieval methods are being considered that use very little, if any, liquid to dislodge, mobilize, and remove the wastes. As additional assurance of protection of the vadose zone beneath the SSTs, tank wastes and tank conditions may be aggressively monitored during retrieval operations by methods that are deployed outside the SSTs in the vadose zone.

Barnett, D BRENT.; Gee, Glendon W.; Sweeney, Mark D.

2002-03-01T23:59:59.000Z

20

Advisory Group On The Application Of Nuclear Techniques To Geothermal...  

Open Energy Info (EERE)

On The Application Of Nuclear Techniques To Geothermal Studies-Meeting In Pisa 8-12 Sep 1975 Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Asteroid Surface Geophysics  

E-Print Network [OSTI]

The regolith-covered surfaces of asteroids preserve records of geophysical processes that have occurred both at their surfaces and sometimes also in their interiors. As a result of the unique micro-gravity environment that these bodies posses, a complex and varied geophysics has given birth to fascinating features that we are just now beginning to understand. The processes that formed such features were first hypothesised through detailed spacecraft observations and have been further studied using theoretical, numerical and experimental methods that often combine several scientific disciplines. These multiple approaches are now merging towards a further understanding of the geophysical states of the surfaces of asteroids. In this chapter we provide a concise summary of what the scientific community has learned so far about the surfaces of these small planetary bodies and the processes that have shaped them. We also discuss the state of the art in terms of experimental techniques and numerical simulations that...

Murdoch, Naomi; Schwartz, Stephen R; Miyamoto, Hideaki

2015-01-01T23:59:59.000Z

22

Geophysical investigations of certain Montana geothermal areas  

SciTech Connect (OSTI)

Selected hot springs areas of Montana have been investigated by a variety of geophysical techniques. Resistivity, gravity, seismic, and magnetic methods have been applied during investigations near the hot springs. Because the geology is extremely varied at the locations of the investigations, several geophysical techniques have usually been applied at each site.

Wideman, C.J. (Montana Bureau of Mines and Geology, Butte); Dye, L.; Halvorson, J.; McRae, M.; Ruscetta, C.A.; Foley, D. (eds.)

1981-05-01T23:59:59.000Z

23

COMBINED GEOPHYSICAL INVESTIGATION TECHNIQUES TO IDENTIFY BURIED WASTE IN AN UNCONTROLLED LANDFILL AT THE PADUCAH GASEOUS DIFFUSION PLANT, KENTUCKY  

SciTech Connect (OSTI)

The primary objective of the investigation was to confirm the presence and determine the location of a cache of 30 to 60 buried 55-gallon drums that were allegedly dumped along the course of the pre-existing, northsouth diversion ditch (NSDD) adjacent to permitted landfills at the Paducah Gaseous Diffusion Plant, Kentucky. The ditch had been rerouted and was being filled and re-graded at the time of the alleged dumping. Historic information and interviews with individuals associated with alleged dumping activities indicated that the drums were dumped prior to the addition of other fill materials. In addition, materials alleged to have been dumped in the ditch, such as buried roofing materials, roof flashing, metal pins, tar substances, fly ash, and concrete rubble complicated data interpretation. Some clean fill materials have been placed over the site and graded. This is an environment that is extremely complicated in terms of past waste dumping activities, construction practices and miscellaneous landfill operations. The combination of site knowledge gained from interviews and research of existing site maps, variable frequency EM data, classical total magnetic field data and optimized GPR lead to success where a simpler less focused approach by other investigators using EM-31 and EM-61 electromagnetic methods and unfocused ground penetrating radar (GPR)did not produce results and defined no real anomalies. A variable frequency electromagnetic conductivity unit was used to collect the EM data at 3,030 Hz, 5,070 Hz, 8,430 Hz, and 14,010 Hz. Both in-phase and quadrature components were recorded at each station point. These results provided depth estimates for targets and some information on the subsurface conditions. A standard magnetometer was used to conduct the magnetic survey that showed the locations and extent of buried metal, the approximate volume of ferrous metal present within a particular area, and allowed estimation of approximate target depths. The GPR survey used a 200 megahertz (MHz) antenna to provide the maximum depth penetration and subsurface detail yielding usable signals to a depth of about 6 to 10 feet in this environment and allowed discrimination of objects that were deeper, particularly useful in the southern area of the site where shallow depth metallic debris (primarily roof flashing) complicated interpretation of the EM and magnetic data. Several geophysical anomalies were defined on the contour plots that indicated the presence of buried metal. During the first phase of the project, nine anomalies or anomalous areas were detected. The sizes, shapes, and magnitudes of the anomalies varied considerably, but given the anticipated size of the primary target of the investigation, only the most prominent anomalies were considered as potential caches of 30 to 60 buried drums. After completion of a second phase investigation, only two of the anomalies were of sufficient magnitude, not identifiable with existing known metallic objects such as monitoring wells, and in positions that corresponded to the location of alleged dumping activities and were recommended for further, intrusive investigation. Other important findings, based on the variable frequency EM method and its combination with total field magnetic and GPR data, included the confirmation of the position of the old NSDD, the ability to differentiate between ferrous and non-ferrous anomalies, and the detection of what may be plumes emanating from the landfill cell.

Miller, Peter T.; Starmer, R. John

2003-02-27T23:59:59.000Z

24

Roadmap-Based Techniques for Modeling Group Behaviors in Multi-Agent Systems  

E-Print Network [OSTI]

ROADMAP-BASED TECHNIQUES FOR MODELING GROUP BEHAVIORS IN MULTI-AGENT SYSTEMS A Dissertation by SAMUEL OSCAR RODRIGUEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of DOCTOR OF PHILOSOPHY May 2012 Major Subject: Computer Science ROADMAP-BASED TECHNIQUES FOR MODELING GROUP BEHAVIORS IN MULTI-AGENT SYSTEMS A Dissertation by SAMUEL OSCAR RODRIGUEZ Submitted to the Office of Graduate Studies of Texas A...

Rodriguez, Samuel Oscar

2012-07-16T23:59:59.000Z

25

Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6TheoreticalFuelCellGeminiEnergy InformationNevada Jump

26

advanced borehole geophysical: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

approach to formation evaluation using borehole geophysical measurements and 3D seismic data Fossil Fuels Websites Summary: and depth of penetration). Techniques used for...

27

Numerical Simulation in Applied Geophysics. From the Mesoscale to ...  

E-Print Network [OSTI]

Instituto del Gas y del Petróleo, Facultad de Ingenie? a UBA ... Seismic wave propagation is a common technique used in hydrocarbon exploration geophysics

28

Non-Seismic Geophysical Approaches to Monitoring  

SciTech Connect (OSTI)

This chapter considers the application of a number of different geophysical techniques for monitoring geologic sequestration of CO2. The relative merits of the seismic, gravity, electromagnetic (EM) and streaming potential (SP) geophysical techniques as monitoring tools are examined. An example of tilt measurements illustrates another potential monitoring technique, although it has not been studied to the extent of other techniques in this chapter. This work does not represent an exhaustive study, but rather demonstrates the capabilities of a number of geophysical techniques on two synthetic modeling scenarios. The first scenario represents combined CO2 enhance oil recovery (EOR) and sequestration in a producing oil field, the Schrader Bluff field on the north slope of Alaska, USA. The second scenario is of a pilot DOE CO2 sequestration experiment scheduled for summer 2004 in the Frio Brine Formation in South Texas, USA. Numerical flow simulations of the CO2 injection process for each case were converted to geophysical models using petrophysical models developed from well log data. These coupled flow simulation geophysical models allow comparrison of the performance of monitoring techniques over time on realistic 3D models by generating simulated responses at different times during the CO2 injection process. These time-lapse measurements are used to produce time-lapse changes in geophysical measurements that can be related to the movement of CO2 within the injection interval.

Hoversten, G.M.; Gasperikova, Erika

2004-09-01T23:59:59.000Z

29

Geophysical Journal International Geophys. J. Int. (2013) doi: 10.1093/gji/ggt482  

E-Print Network [OSTI]

Kalscheuer2 and Jasper A. Vrugt3,4 1Applied and Environmental Geophysics Group, Faculty of Geosciences

Vrugt, Jasper A.

30

Fiber optic geophysical sensors  

DOE Patents [OSTI]

A fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects.

Homuth, Emil F. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

31

Test Plan for the Demonstration of Geophysical Techniques for Single-Shell Tank Leak Detection at the Hanford Mock Tank Site: Fiscal Year 2001  

SciTech Connect (OSTI)

As part of the Leak Detection, Monitoring and Mitigation (LDMM) program conducted by CH2M HILL 105-A during FY 2001. These tests are being conducted to assess the applicability of these methods (Electrical Resistance Tomography [ERT], High Resolution Resistivity [HRR], Cross-Borehole Seismography [XBS], Cross-Borehole Radar [XBR], and Cross-Borehole Electromagnetic Induction [CEMI]) to the detection and measurement of Single Shell Tank (SST) leaks into the vadose zone during planned sluicing operations. The testing in FY 2001 will result in the selection of up to two methods for further testing in FY 2002. In parallel with the geophysical tests, a Partitioning Interwell Tracer Test (PITT) study will be conducted simultaneously at the Mock Tank to assess the effectiveness of this technology in detecting and quantifying tank leaks in the vadose zone. Preparatory and background work using Cone Penetrometer methods (CPT) will be conducted at the Mock Tank site and an adjacent test area to derive soil properties for groundtruthing purposes for all methods.

Barnett, D. Brent; Gee, Glendon W.; Sweeney, Mark D.

2001-07-31T23:59:59.000Z

32

Processing gravity gradiometer data using an equivalent source technique Gravity and Magnetics Research Consortium, Department of Geophysics, Colorado School of Mines, Golden, CO  

E-Print Network [OSTI]

Processing gravity gradiometer data using an equivalent source technique Yaoguo Li Gravity The inherent relationship among the different components of gravity gradiometer data requires filtering operation on the constructed equivalent source. Introduction Gravity gradiometer data measure

33

Fiber optic geophysical sensors  

DOE Patents [OSTI]

A fiber optic geophysical sensor is described in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figures.

Homuth, E.F.

1991-03-19T23:59:59.000Z

34

Geophysical Exploration (Montana)  

Broader source: Energy.gov [DOE]

An exploration permit is required for any entity conducting geophysical exploration within the state of Montana. Such entities are also required to follow rules adopted by the Board of Oil and Gas...

35

Geophysical characterization of subsurface barriers  

SciTech Connect (OSTI)

An option for controlling contaminant migration from plumes and buried waste sites is to construct a subsurface barrier of a low-permeability material. The successful application of subsurface barriers requires processes to verify the emplacement and effectiveness of barrier and to monitor the performance of a barrier after emplacement. Non destructive and remote sensing techniques, such as geophysical methods, are possible technologies to address these needs. The changes in mechanical, hydrologic and chemical properties associated with the emplacement of an engineered barrier will affect geophysical properties such a seismic velocity, electrical conductivity, and dielectric constant. Also, the barrier, once emplaced and interacting with the in situ geologic system, may affect the paths along which electrical current flows in the subsurface. These changes in properties and processes facilitate the detection and monitoring of the barrier. The approaches to characterizing and monitoring engineered barriers can be divided between (1) methods that directly image the barrier using the contrasts in physical properties between the barrier and the host soil or rock and (2) methods that reflect flow processes around or through the barrier. For example, seismic methods that delineate the changes in density and stiffness associated with the barrier represents a direct imaging method. Electrical self potential methods and flow probes based on heat flow methods represent techniques that can delineate the flow path or flow processes around and through a barrier.

Borns, D.J.

1995-08-01T23:59:59.000Z

36

Implementation of IAEA /1/INT/054 Project in Nuclear Analytical Techniques Group of Argentina: Current State  

SciTech Connect (OSTI)

This paper presents the implementation of the training received through the IAEA Project 'Preparation of Reference Materials and Organization of Proficiency Tests Rounds' in the Nuclear Analytical (NAT) Group of CNEA. Special emphasis is done on those activities related to the first Proficiency Test being carried out by the NAT Group.

Sara, Resnizky; Rita, Pla [Nuclear Analytical Techniques Group, Argentine National Atomic Energy Commission (CNEA), Av. Del Libertador 8250 (1429) Buenos Aires (Argentina); Alba, Zaretzky [Ionizing Radiation Dosimetry Group(CRRD), Argentine National Atomic Energy Commission (CNEA), Av. Del Libertador 8250, 1429 Buenos Aires (Argentina)

2008-08-14T23:59:59.000Z

37

SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT  

SciTech Connect (OSTI)

This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and processing for plume mapping. Due to the interferences from the near surface piping network, tanks, fences, wells, etc., the results of the three-dimensional (3D) reconstruction of electrical resistivity was more representative of metal than the high ionic strength plumes. Since the first deployment, the focus of the SGE program has been to acquire and model the best electrical resistivity data that minimizes the influence of buried metal objects. Toward that goal, two significant advances have occurred: (1) using the infrastructure directly in the acquisition campaign and (2) placement of electrodes beneath the infrastructure. The direct use of infrastructure was successfully demonstrated at T farm by using wells as long electrodes (Rucker et al., 2010, 'Electrical-Resistivity Characterization of an Industrial Site Using Long Electrodes'). While the method was capable of finding targets related to past releases, a loss of vertical resolution was the trade-off. The burying of electrodes below the infrastructure helped to increase the vertical resolution, as long as a sufficient number of electrodes are available for the acquisition campaign.

RUCKER DF; MYERS DA

2011-10-04T23:59:59.000Z

38

Effective porosity and pore-throat sizes of Conasauga Group mudrock: Application, test and evaluation of petrophysical techniques  

SciTech Connect (OSTI)

Effective porosity (specifically referring to the interconnected pore space) was recently recognized as being essential in determining the effectiveness and extent of matrix diffusion as a transport mechanism within fractured low-permeability rock formations. The research presented in this report was performed to test the applicability of several petrophysical techniques for the determination of effective porosity of fine-grained siliciclastic rocks. In addition, the aim was to gather quantitative data on the effective porosity of Conasauga Group mudrock from the Oak Ridge Reservation (ORR). The quantitative data reported here include not only effective porosities based on diverse measurement techniques, but also data on the sizes of pore throats and their distribution, and specimen bulk and grain densities. The petrophysical techniques employed include the immersion-saturation method, mercury and helium porosimetry, and the radial diffusion-cell method.

Dorsch, J. [Oak Ridge National Lab., TN (United States). Environmental Sciences Div.; Katsube, T.J. [Geological Survey of Canada, Ottawa, Ontario (Canada). Mineral Resources Div.; Sanford, W.E. [Oak Ridge National Lab., TN (United States). Environmental Sciences Div.; [Univ. of Tennessee, Knoxville, TN (United States). Dept. of Civil and Environmental Engineering; Dugan, B.E. [Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Civil and Mineral Engineering; Tourkow, L.M. [Purdue Univ., West Lafayette, IN (United States). Dept. of Earth and Atmospheric Sciences

1996-04-01T23:59:59.000Z

39

Monitoring DNAPL pumping using integrated geophysical techniques  

SciTech Connect (OSTI)

The removal of DNAPL during pumping was monitored. At Hill AFB in Utah, a free-product DNAPL plume (predominantly TCE, with some TCA, PCE, methylene chloride) is pooled in water-wet soil on a thick clay aquitard. Groundwater pumping at Operable Unit 2 began in 1994; to date, nearly 30,000 gal DNAPL have been recovered. From Sept. 1994 through Sept. 1995, changes in the basin during DNAPL pumping were monitored using fiber optic chemical sensors, neutron logs, and electrical resistance tomography (ERT). The first two sensor types verify the presence of DNAPL in vicinity of 3 boreholes which form a cross section from the perimeter of the basin to its center. Cross borehole ERT images the changes in formation electrical properties due to removal of DNAPL, extending the understanding of DNAPL removal between the boreholes. During pumping, electrical resistivities decreased; we suggest these decreases are directly caused by the reduction in DNAPL. During ground water pumping, water with relatively low resistivity replaces some of the DNAPL pockets as the highly insulating DNAPL is removed. Results suggest that, as DNAPL is pumped from a nearby well, product slowly drains along the top of an aquitard and into the pump well, where it collects.

Newmark, R.L.

1997-01-01T23:59:59.000Z

40

Category:Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascadeJump to: navigation, search

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Highlights of the 2009 SEG summer research workshop on ""CO2 sequestration geophysics  

SciTech Connect (OSTI)

The 2009 SEG Summer Research Workshop on 'CO{sub 2} Sequestration Geophysics' was held August 23-27, 2009 in Banff, Canada. The event was attended by over 100 scientists from around the world, which proved to be a remarkably successful turnout in the midst of the current global financial crisis and severe corporate travel restrictions. Attendees included SEG President Larry Lines (U. Calgary), and CSEG President John Downton (CGG Veritas), who joined SRW Chairman David Lumley (UWA) in giving the opening welcome remarks at the Sunday Icebreaker. The workshop was organized by an expert technical committee representing a good mix of industry, academic, and government research organizations. The format consisted of four days of technical sessions with over 60 talks and posters, plus an optional pre-workshop field trip to the Columbia Ice Fields to view firsthand the effects of global warming on the Athabasca glacier. Group technical discussion was encouraged by requiring each presenter to limit themselves to 15 minutes of presentation followed by a 15 minute open discussion period. Technical contributions focused on the current and future role of geophysics in CO{sub 2} sequestration, highlighting new research and field-test results with regard to site selection and characterization, monitoring and surveillance, using a wide array of geophysical techniques. While there are too many excellent contributions to mention all individually here, in this paper we summarize some of the key workshop highlights in order to propagate new developments to the SEG community at large.

Huang, Lianjie [Los Alamos National Laboratory; Lumley, David [U. W. AUSTRALIA; Sherlock, Don [CHEVRON; Daley, Tom [LBNL; Lawton, Don [U CALGARY; Masters, Ron [SHELL; Verliac, Michel [SCHLUMBERGER; White, Don [GEOL. SURVEY CANADA

2009-01-01T23:59:59.000Z

42

Highlights of the 2009 SEG summer research workshop on"CO2 Sequestration Geophysics"  

SciTech Connect (OSTI)

The 2009 SEG Summer Research Workshop on CO2 Sequestration Geophysics was held August 23-27, 2009 in Banff, Canada. The event was attended by over 100 scientists from around the world, which proved to be a remarkably successful turnout in the midst of the current global financial crisis and severe corporate travel restrictions. Attendees included SEG President Larry Lines (U. Calgary), and CSEG President John Downton (CGG Veritas), who joined SRW Chairman David Lumley (UWA) in giving the opening welcome remarks at the Sunday Icebreaker. The workshop was organized by an expert technical committee (see side bar) representing a good mix of industry, academic, and government research organizations. The format consisted of four days of technical sessions with over 60 talks and posters, plus an optional pre-workshop field trip to the Columbia Ice Fields to view firsthand the effects of global warming on the Athabasca glacier (Figures 1-2). Group technical discussion was encouraged by requiring each presenter to limit themselves to 15 minutes of presentation followed by a 15 minute open discussion period. Technical contributions focused on the current and future role of geophysics in CO2 sequestration, highlighting new research and field-test results with regard to site selection and characterization, monitoring and surveillance, using a wide array of geophysical techniques. While there are too many excellent contributions to mention all individually here, in this paper we summarize some of the key workshop highlights in order to propagate new developments to the SEG community at large.

Lumley, D.; Sherlock, D.; Daley, T.; Huang, L.; Lawton, D.; Masters, R.; Verliac, M.; White, D.

2010-01-15T23:59:59.000Z

43

History of geophysical studies at the Waste Isolation Pilot Plant (WIPP), southeastern New Mexico  

SciTech Connect (OSTI)

A variety of geophysical methods including the spectrum of seismic, electrical, electromagnetic and potential field techniques have supported characterization, monitoring and experimental studies at the Waste Isolation Pilot Plant (WIPP). The geophysical studies have provided significant understanding of the nature of site deformation, tectonics and stability. Geophysical methods have delineated possible brine reservoirs beneath the underground facility and have defined the disturbed rock zone that forms around underground excavations. The role of geophysics in the WIPP project has evolved with the project. The early uses were for site characterization to satisfy site selection criteria or factors. As the regulatory framework for WIPP grew since 1980, the geophysics program supported experimental and field programs such as Salado hydrogeology and underground room systems and excavations. In summary, the major types of issues that geophysical studies addressed for WIPP are: Site Characterization; Castile Brine Reservoirs; Rustler/Dewey Lake Hydrogeology; Salado Hydrogeology; and Excavation Effects. The nature of geophysics programs for WIPP has been to support investigation rather than being the principal investigation itself. The geophysics program has been used to define conceptual models (e.g., the Disturbed Rock Zone-DRZ) or to test conceptual models (e.g., high transmissivity zones in the Rustler Formation). The geophysics program primarily supported larger characterization and experimental programs. Funding was not available for the complete documentation and interpretation. Therefore, a great deal of the geophysics survey information resides in contractor reports.

Borns, D.J. [Sandia National Labs., Albuquerque, NM (United States). Geophysics Dept.

1997-03-05T23:59:59.000Z

44

Crump Geyser: High Precision Geophysics & Detailed Structural...  

Broader source: Energy.gov (indexed) [DOE]

Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well...

45

DEPARTMENT OF GEOLOGY & GEOPHYSICS UNDERGRADUATE  

E-Print Network [OSTI]

DEPARTMENT OF GEOLOGY & GEOPHYSICS UNDERGRADUATE SURVIVAL MANUAL 2013-2014 SCHOOL OF OCEAN & EARTH SCIENCE & TECHNOLOGY UNIVERSITY OF HAWAI`I AT MNOA Updated July 2013 #12;CONTENTS INTRODUCTION 1 Geology and Geophysics 1 Job Opportunities 1 Prepare Educationally 1 Challenges and Rewards 1 THE DEPARTMENT OF GEOLOGY

46

Physics and Astronomy Geophysics Concentration  

E-Print Network [OSTI]

Physics and Astronomy Geophysics Concentration Strongly recommended courses Credits Term Dept. to Geophysics 3 PHY 3230 Thermal Physics 3 CHE 1101 Introductory Chemistry - I 3 CHE 1110 Introductory Chemistry Laboratory - I 1 GLY 1101 Intro. to Physical Geology 4 GLY 2250 Evolution of the Earth 4 GLY 4705 Adv

Thaxton, Christopher S.

47

Geophysical imaging methods for analysis of the Krafla Geothermal Field, NE Iceland  

E-Print Network [OSTI]

Joint geophysical imaging techniques have the potential to be reliable methods for characterizing geothermal sites and reservoirs while reducing drilling and production risks. In this study, we applied a finite difference ...

Parker, Beatrice Smith

2012-01-01T23:59:59.000Z

48

GEOPHYSICS, VOL. 66, NO. 1 (JANUARY-FEBRUARY 2001); P. 2530 Reservoir geophysics  

E-Print Network [OSTI]

GEOPHYSICS, VOL. 66, NO. 1 (JANUARY-FEBRUARY 2001); P. 25­30 Reservoir geophysics Wayne D. Pennington INTRODUCTION The concept of petroleum reservoir geophysics is relatively new. In the past industry and as major assets near abandonment, geophysics has increasingly been recognized as a tool

49

Geophysical Institute. Biennial report, 1993-1994  

SciTech Connect (OSTI)

The 1993-1994 Geophysical Institute Biennial Report was published in November 1995 by the Geophysical Institute of the University of Alaska Fairbanks. It contains an overview of the Geophysical Institute, the Director`s Note, and research presentations concerning the following subjects: Scientific Predictions, Space Physics, Atmospheric Sciences, Snow, Ice and Permafrost, Tectonics and Sedimentation, Seismology, Volcanology, Remote Sensing, and other projects.

NONE

1996-01-01T23:59:59.000Z

50

Stochastic resonance for exploration geophysics  

E-Print Network [OSTI]

Stochastic resonance (SR) is a phenomenon in which signal to noise (SN) ratio gets improved by noise addition rather than removal as envisaged classically. SR was first claimed in climatology a few decades ago and then in other disciplines as well. The same as it is observed in natural systems, SR is used also for allowable SN enhancements at will. Here I report a proof of principle that SR can be useful in exploration geophysics. For this I perform high frequency GaussVanicek variance spectral analyses (GVSA) of model traces characterized by varying levels of complexity, completeness and pollution. This demonstration justifies all further research on SR in applied geophysics, as energy demands and depletion of reachable supplies potentially make SR vital in a near future.

Omerbashich, Mensur

2008-01-01T23:59:59.000Z

51

Crump Geyser: High Precision Geophysics & Detailed Structural...  

Broader source: Energy.gov (indexed) [DOE]

Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling John Casteel Nevada Geothermal Power Co. Validation of Innovative Exploration...

52

Regional geophysics, Cenozoic tectonics and geologic resources...  

Open Energy Info (EERE)

and adjoining regions Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Regional geophysics, Cenozoic tectonics and geologic resources of...

53

Geophysical data fusion for subsurface imaging. Final report  

SciTech Connect (OSTI)

This report contains the results of a three year, three-phase project whose long-range goal has been to create a means for the more detailed and accurate definition of the near-surface (0--300 ft) geology beneath a site that had been subjected to environmental pollution. The two major areas of research and development have been: improved geophysical field data acquisition techniques; and analytical tools for providing the total integration (fusion) of all site data. The long-range goal of this project has been to mathematically, integrate the geophysical data that could be derived from multiple sensors with site geologic information and any other type of available site data, to provide a detailed characterization of thin clay layers and geological discontinuities at hazardous waste sites.

NONE

1995-10-01T23:59:59.000Z

54

Student-based archaeological geophysics in northern Thailand Emily A. Hinz*, Lee M. Liberty, and Spencer H. Wood, Boise State University, Fongsaward Singharajawarapan  

E-Print Network [OSTI]

Student-based archaeological geophysics in northern Thailand Emily A. Hinz*, Lee M. Liberty participants to evaluate the practicality and effectiveness of various geophysical techniques: seismic methods including refraction and reflection (not discussed here), ground- penetrating-radar (GPR), DC resistivity

Barrash, Warren

55

Geochemical and Geophysical Changes during Ammonia Gas Treatment...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Geophysical Changes during Ammonia Gas Treatment of Vadose Zone Sediments for Uranium Remediation. Geochemical and Geophysical Changes during Ammonia Gas Treatment of Vadose Zone...

56

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

Broader source: Energy.gov (indexed) [DOE]

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced...

57

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

Broader source: Energy.gov (indexed) [DOE]

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization DOE...

58

APPLIED GEOPHYSICS FIELD CLASS GEOLOGY 437  

E-Print Network [OSTI]

APPLIED GEOPHYSICS FIELD CLASS GEOLOGY 437 SPRING 2014 OF NATURAL RESOURCES INCLUDING OIL, COAL, MINERALS AND GROUNDWATER. OTHER APPLICATIONS OF GEOPHYSICS MAY, IF AVAILABLE, WE WILL VISIT AN OIL DRILLING RIG IN OPERATION. DATES FOR FIELD TRIPS WILL DEPEND ON THE WEATHER

Nickrent, Daniel L.

59

GEOPHYSICS  

E-Print Network [OSTI]

?nite-element formulation (Smith. I975). handle any kind of waves in complex media but are limited mainly because nu- merical dispersion prevents them from

60

Course MA59800: Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale.  

E-Print Network [OSTI]

Description Wave propagation is a common technique used in hydrocarbon exploration geophysics, mining and reservoir characterization and production, among other fields. Local variations in the fluid and solid gradients via a slow-wave diffusion process that can be analyzed using numerical experiments. Numerical rock

Santos, Juan

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

GEOPHYSICAL RESEARCH LETTERS, VOL. , NO. , PAGES 14, Three-dimensional energetic ion sounding of the  

E-Print Network [OSTI]

,4 Abstract. We present new results using energetic parti- cles to remotely sound the highGEOPHYSICAL RESEARCH LETTERS, VOL. , NO. , PAGES 1­4, Three-dimensional energetic ion sounding present a new technique to remotely sense the magnetopause in three dimensions as a function of time

62

Advances in borehole geophysics for hydrology  

SciTech Connect (OSTI)

Borehole geophysical methods provide vital subsurface information on rock properties, fluid movement, and the condition of engineered borehole structures. Within the first category, salient advances include the continuing improvement of the borehole televiewer, refinement of the electrical conductivity dipmeter for fracture characterization, and the development of a gigahertz-frequency electromagnetic propagation tool for water saturation measurements. The exploration of the rock mass between boreholes remains a challenging problem with high potential; promising methods are now incorporating high-density spatial sampling and sophisticated data processing. Flow-rate measurement methods appear adequate for all but low-flow situations. At low rates the tagging method seems the most attractive. The current exploitation of neutron-activation techniques for tagging means that the wellbore fluid itself is tagged, thereby eliminating the mixing of an alien fluid into the wellbore. Another method uses the acoustic noise generated by flow through constrictions and in and behind casing to detect and locate flaws in the production system. With the advent of field-recorded digital data, the interpretation of logs from sedimentary sequences is now reaching a sophisticated level with the aid of computer processing and the application of statistical methods. Lagging behind are interpretive schemes for the low-porosity, fracture-controlled igneous and metamorphic rocks encountered in the geothermal reservoirs and in potential waste-storage sites. Progress is being made on the general problem of fracture detection by use of electrical and acoustical techniques, but the reliable definition of permeability continues to be an elusive goal.

Nelson, P.H.

1982-01-01T23:59:59.000Z

63

GEOPHYSICAL METHODS In 2003, a group of scientists in Swit-  

E-Print Network [OSTI]

with Petrobras in Brazil, Pemex in Mexico, Norsk Hydro in Libya and KOC in the Arabian Peninsula, it is evident

Podladchikov, Yuri

64

Use of Geophysical Techniques to Characterize Fluid Flow in a...  

Broader source: Energy.gov (indexed) [DOE]

Geothermal Technology Program Peer Review Report Tracer Methods for Characterizing Fracture Stimulation in Enhanced Geothermal Systems (EGS); 2010 Geothermal Technology Program...

65

Use of Geophysical Techniques to Characterize Fluid Flow in a...  

Broader source: Energy.gov (indexed) [DOE]

14 | US DOE Geothermal Program eere.energy.gov Future Directions *3D DC resistivity tomography of a volcano (Revil, Johnson and Finizola, in preparation) * Passive seismic *...

66

Bulgarian Geophysical Journal, 2006, Vol. 32 Geophysical Institute, Bulgarian Academy of Sciences  

E-Print Network [OSTI]

Geophysical Journal, 2006, Vol. 32 Thermal water is a source of renewable energy and its utilization distribution maps at three depth levels below the surface - 50, 100 and 150m and geothermal gradient map have been prepared and analyzed together with existing geophysical results of gravity, magnetic, electric

Harinarayana, T.

67

Spatial correlation structure estimation using geophysical and hydrogeological data  

E-Print Network [OSTI]

Spatial correlation structure estimation using geophysical and hydrogeological data Susan S investigate the use of tomographic geophysical data in combination with hydrogeological data in the spatial of data having different support scales and spatial sampling windows was facilitated. Comparison

Hubbard, Susan

68

Merging high resolution geophysical and geochemical surveys to...  

Broader source: Energy.gov (indexed) [DOE]

hydrothermal alteration) - Geologic field work - OSU detailed mapping - Geophysics * Gravity - 1km grid collected * High resolution aeromagnetic - currently being collected *...

69

DEPARTMENT OF GEOLOGY & GEOPHYSICS School of Ocean & Earth Science & Technology  

E-Print Network [OSTI]

DEPARTMENT OF GEOLOGY & GEOPHYSICS School of Ocean & Earth Science & Technology University of Hawaii at Manoa REQUIREMENTS FOR A MINOR IN GEOLOGY & GEOPHYSICS The minor requires GG 101 (or 103) & 101L or GG 170, 200, and 11 credits hours of non-introductory Geology and Geophysics courses at the 300

70

Subtask 2.2 - Creating A Numerical Technique for Microseismic Data Inversion  

SciTech Connect (OSTI)

Geomechanical and geophysical monitoring are the techniques which can complement each other and provide enhancement in the solutions of many problems of geotechnical engineering. One of the most promising geophysical techniques is passive seismic monitoring. The essence of the technique is recording the acoustic signals produced in the subsurface, either naturally or in response to human activity. The acoustic signals are produced by mechanical displacements on the contacts of structural elements (e.g., faults, boundaries of rock blocks, natural and induced fractures). The process can be modeled by modern numerical techniques developed in geomechanics. The report discusses a study that was aimed at the unification of the passive seismic monitoring and numerical modeling for the monitoring of the hydraulic fracture propagation. The approach adopted in the study consisted of numerical modeling of the seismicity accompanying hydraulic fracture propagation and defining seismic attributes and patterns characterizing the process and fracture parameters. Numerical experiments indicated that the spatial distribution of seismic events is correlated to geometrical parameters of hydrofracture. Namely, the highest density of the events is observed along fracture contour, and projection of the events to the fracture plane makes this effect most pronounced. The numerical experiments also showed that dividing the totality of the events into groups corresponding to the steps of fracture propagation allows for reconstructing the geometry of the resulting fracture more accurately than has been done in the majority of commercial applications.

Anastasia Dobroskok; Yevhen Holubnyak; James Sorensen

2009-05-01T23:59:59.000Z

71

Geophysical Monitoring of Hydrological and Biogeochemical  

E-Print Network [OSTI]

explored the use of geophysical approaches for monitoring the spatiotemporal distribution of hydrological and biogeochemical transformations associated with a Cr(VI) bioremediation experiment performed at Hanford, WA. We: the spatial distribution of injected electron donor; the evolution of gas bubbles; variations in total

Hubbard, Susan

72

INTEGRATING GEOLOGIC AND GEOPHYSICAL DATA THROUGH  

E-Print Network [OSTI]

INTEGRATING GEOLOGIC AND GEOPHYSICAL DATA THROUGH ADVANCED CONSTRAINED INVERSIONS by Peter George framework (i.e. minimization of an objective function). I developed several methods to reach this goal constraints to the inverse problem. Lastly, I developed an iterative procedure for cooperatively inverting

Oldenburg, Douglas W.

73

Statistical Analysis of EXTREMES in GEOPHYSICS  

E-Print Network [OSTI]

Statistical Analysis of EXTREMES in GEOPHYSICS Zwiers FW and Kharin VV. 1998. Changes in the extremes of the climate simulated by CCC GCM2 under CO2 dou- bling. J. Climate 11:2200­2222. http://www.ral.ucar.edu/staff/ericg/readinggroup.html #12;Outline · Some background on Extreme Value Statistics ­ Extremal Types Theorem ­ Max

Gilleland, Eric

74

Contribution of Geophysical Prospecting to Geohazard Evaluation  

SciTech Connect (OSTI)

The physical properties of the subsoil are studied using geophysical methods. These studies are always indirect, such as gravimetric, magnetometric, magnetotelluric or reflection-refraction seismic surveys and are often combined to obtain more accurate and reliable results. With these tools the oil industry commonly investigates the sedimentary basins to localize structures that may favor the accumulation of hydrocarbons. Above all, seismic prospecting allow the understanding of the underground geology, defining boundaries of the geological formations as well as mechanical and physical properties of the rocks. New cutting-edge techniques allow high quality data to be obtained in almost all geological contexts and make reflection seismic the most powerful tool in subsurface observations. The seismic method was utilized in geothermal resources investigation, research of water strategic resources, volcanic risks assessment, etc. The refraction method was the first to be used in the exploration of oil reservoirs. At present the industry employs mainly refraction seismics to study shallow formations. Conversely, university researchers have applied wide-angle reflection-refraction surveys to localize deep crustal interfaces analyzing the high amplitudes of the wide-angle reflections and the velocities obtained from the refracted signals. Moho discontinuity and velocity distribution within the crust were mapped out, indicating thickness and boundary conditions in different geological settings. The maps have been used in the analysis of geodynamical behavior and of active movements within the crust, useful for seismotectonic investigations. The further addition of the seismic reflection imaging, with deep penetration and long transects, completed multidisciplinary programs to unravel the structure of the crust with clear seismic images and models. High-resolution application of seismic has a central role in the identification and characterization of seismotectonic and seismogenetic zones and of the related capable faults. The earthquakes represent an important external risk for key constructions and nuclear power plants and capable faults cause near-surface displacements being considered to be the more critical for site safety. A close cooperation among geophysicists, geologists and seismologists is recommended in the hazards evaluation, alike in macrozoning for location of seismic sources and in microzoning for the measure of terrains mechanical properties and dynamic responses. Here I present and discuss the results of integrated multidisciplinary studies to unravel the peculiarity of the crustal structures and seismicity in Southern Tuscany, Italy.

Nicolich, Rinaldo [Department of Civil Engineering, University of Trieste, via Valerio 10, I-34127 Trieste (Italy)

2006-03-23T23:59:59.000Z

75

Geophysical investigation of the ``Thimble,`` 100-H Area  

SciTech Connect (OSTI)

This report summarizes the results of the geophysical investigations conducted as part of the characterization of the buried ``Thimble`` site. The site is located just south of the 116-H-2 Crib and is in the 100-HR-2 Operable Unit. Available documentation has it located between, and at the convergence of, two railroad spurs that run north-south. A concrete monument is believed to mark the site. The burial ground is suspected of containing a vertical safety rod thimble that is reportedly 40 ft long. Ground-penetrating radar (GPR) and electromagnetic induction (EMI) were the two techniques used in the investigation. The methods were selected because they are non-intrusive, relatively fast, economical, and have been used successfully in other similar investigations on the Hanford Site. The objective of the investigation was to locate the buried thimble.

Bergstrom, K.A.

1994-07-08T23:59:59.000Z

76

Geophysical modeling of two willemite deposits, Vazante (Brazil) and Beltana (Australia) Richard A. Krahenbuhl* and Murray Hitzman  

E-Print Network [OSTI]

of ore bodies or through imaging of associated hydrothermal alteration. Introduction Due to recent technological advances in developing solvent-extraction and electro-winning processes for treatment of zinc by conventional processing techniques and geophysical inversion. Vazante deposit in Brazil The Vazante willemite

77

Combustion Group Group members  

E-Print Network [OSTI]

Combustion Group Group members: Thierry Poinsot, Emilien Courtine, Luc Vervisch, Benjamin Farcy 2014 #12;Combustion Group Combustion Physics and Modeling Pollutants, Emissions, and Soot Formation Thermoacoustics and Combustion Dynamics Research focus § Examine mechanisms responsible for flame stabilization

Wang, Wei

78

Invariance, groups, and non-uniqueness: The discrete case  

SciTech Connect (OSTI)

Lie group methods provide a valuable tool for examininginvariance and non-uniqueness associated with geophysical inverseproblems. The techniques are particularly well suited for the study ofnon-linear inverse problems. Using the infinitesimal generators of thegroup it is possible to move within the null space in an iterativefashion. The key computational step in determining the symmetry groupsassociated with an inverse problem is the singular value decomposition(SVD) of a sparse matrix. I apply the methodology to the eikonal equationand examine the possible solutions associated with a crosswelltomographic experiment. Results from a synthetic test indicate that it ispossible to vary the velocity model significantly and still fit thereference arrival times. the approach is also applied to data fromcorosswell surveys conducted before and after a CO2 injection at the LostHills field in California. The results highlight the fact that a faultcross-cutting the region between the wells may act as a conduit for theflow of water and CO2.

Vasco, D.W.

2005-03-24T23:59:59.000Z

79

Introduction The Waterberg Group of South Africa, together with the  

E-Print Network [OSTI]

Introduction The Waterberg Group of South Africa, together with the Soutpansberg Group, Palapye Paleomagnetism of the lower two unconformity-bounded sequences of the Waterberg Group, South Africa: Towards, South Africa e-mail: glgy5@na.rau.ac.za D.A.D. Evans Department of Geology and Geophysics, Yale

80

Geophysical investigation, Salmon Site, Lamar County, Mississippi  

SciTech Connect (OSTI)

Geophysical surveys were conducted in 1992 and 1993 on 21 sites at the Salmon Site (SS) located in Lamar County, Mississippi. The studies are part of the Remedial Investigation/Feasibility Study (RI/FS) being conducted by IT Corporation for the U.S. Department of Energy (DOE). During the 1960s, two nuclear devices and two chemical tests were detonated 826 meters (in) (2710 feet [ft]) below the ground surface in the salt dome underlying the SS. These tests were part of the Vela Uniform Program conducted to improve the United States capability to detect, identify, and locate underground nuclear detonations. The RI/FS is being conducted to determine if any contamination is migrating from the underground shot cavity in the salt dome and if there is any residual contamination in the near surface mud and debris disposal pits used during the testing activities. The objective of the surface geophysical surveys was to locate buried debris, disposal pits, and abandoned mud pits that may be present at the site. This information will then be used to identify the locations for test pits, cone penetrometer tests, and drill hole/monitor well installation. The disposal pits were used during the operation of the test site in the 1960s. Vertical magnetic gradient (magnetic gradient), electromagnetic (EM) conductivity, and ground-penetrating radar (GPR) surveys were used to accomplish these objectives. A description of the equipment used and a theoretical discussion of the geophysical methods are presented Appendix A. Because of the large number of figures relative to the number of pages of text, the geophysical grid-location maps, the contour maps of the magnetic-gradient data, the contour maps of the EM conductivity data, and the GPR traverse location maps are located in Appendix B, Tabs I through 22. In addition, selected GPR records are located in Appendix C.

NONE

1995-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Clean enough for industry? An airborne geophysical case study  

SciTech Connect (OSTI)

Data from two airborne geophysical surveys of the Department of Energy`s Oak Ridge Reservation (ORR) were extremely valuable in deciding whether a 1000-acre (400 hectare) parcel of the ORR should be released to the City of Oak Ridge for industrial development. Our findings, based on electromagnetic and magnetic data, were incorporated in the federally mandated Environmental Assessment Statement (EAS), and in general supported claims that this land was never used as a hazardous waste disposal site. We estimated the amount of iron required to produce each anomaly using a simple dipole model. All anomalies with equivalent sources greater than approximately 1000 kg of iron were checked in the field, and the source of all but one identified as either a bridge, reinforced concrete debris, or a similarly benign object. Additionally, some smaller anomalies (equivalent sources of roughly 500 kg) have been checked; thus far, these also have innocuous sources. Airborne video proved invaluable in identifying logging equipment as the source of some of these anomalies. Geologic noise may account for some of the remaining anomalies. Naturally occurring accumulations of magnetic minerals in the soil on the ORR have been shown to produce anomalies which, at a sensor height of 30 m, are comparable to the anomaly produced by about 500 kg of iron. By comparison, the electronic noise of the magnetic gradiometer, 0.01--0.02 nT/m, is equivalent to only about 50--100 kg of iron at a 30 m sensor height. The electromagnetic data, combined with field mapping of karst structures, provided evidence of a northeast-southwest striking conduit spanning the parcel. The possible existence of a karst conduit led the EAS authors to conclude that this is a ``sensitive hydrologic setting.`` We conclude that aerial geophysics is an extremely cost-effective, and efficient technique for screening large tracts of land for environmental characterization.

Nyquist, J.E.; Beard, L.P.

1996-02-01T23:59:59.000Z

82

Modeling and Evaluation of Geophysical Methods for Monitoring and Tracking CO2 Migration  

SciTech Connect (OSTI)

Geological sequestration has been proposed as a viable option for mitigating the vast amount of CO{sub 2} being released into the atmosphere daily. Test sites for CO{sub 2} injection have been appearing across the world to ascertain the feasibility of capturing and sequestering carbon dioxide. A major concern with full scale implementation is monitoring and verifying the permanence of injected CO{sub 2}. Geophysical methods, an exploration industry standard, are non-invasive imaging techniques that can be implemented to address that concern. Geophysical methods, seismic and electromagnetic, play a crucial role in monitoring the subsurface pre- and post-injection. Seismic techniques have been the most popular but electromagnetic methods are gaining interest. The primary goal of this project was to develop a new geophysical tool, a software program called GphyzCO2, to investigate the implementation of geophysical monitoring for detecting injected CO{sub 2} at test sites. The GphyzCO2 software consists of interconnected programs that encompass well logging, seismic, and electromagnetic methods. The software enables users to design and execute 3D surface-to-surface (conventional surface seismic) and borehole-to-borehole (cross-hole seismic and electromagnetic methods) numerical modeling surveys. The generalized flow of the program begins with building a complex 3D subsurface geological model, assigning properties to the models that mimic a potential CO{sub 2} injection site, numerically forward model a geophysical survey, and analyze the results. A test site located in Warren County, Ohio was selected as the test site for the full implementation of GphyzCO2. Specific interest was placed on a potential reservoir target, the Mount Simon Sandstone, and cap rock, the Eau Claire Formation. Analysis of the test site included well log data, physical property measurements (porosity), core sample resistivity measurements, calculating electrical permittivity values, seismic data collection, and seismic interpretation. The data was input into GphyzCO2 to demonstrate a full implementation of the software capabilities. Part of the implementation investigated the limits of using geophysical methods to monitor CO{sub 2} injection sites. The results show that cross-hole EM numerical surveys are limited to under 100 meter borehole separation. Those results were utilized in executing numerical EM surveys that contain hypothetical CO{sub 2} injections. The outcome of the forward modeling shows that EM methods can detect the presence of CO{sub 2}.

Daniels, Jeff

2012-11-30T23:59:59.000Z

83

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization  

E-Print Network [OSTI]

We describe the ongoing development of joint geophysical imaging methodologies for geothermal site characterization and demonstrate their potential in two regions: Krafla volcano and associated geothermal fields in ...

Zhang, Haijiang

2012-01-01T23:59:59.000Z

84

Integrated Geophysical Exploration of a Known Geothermal Resource...  

Open Energy Info (EERE)

Neal Hot Springs Jump to: navigation, search OpenEI Reference LibraryAdd to library Book Section: Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot...

85

Merging High Resolution Geophysical and Geochemical Surveys to...  

Open Energy Info (EERE)

Buttes, Oregon Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Merging High Resolution Geophysical and Geochemical Surveys to Reduce...

86

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This project aims to develop improved geophysical imaging method for characterizing subsurface structure, identify fluid locations, and characterize fractures.

87

NMSLO Application for Permit to Conduct Geophysical Exploration...  

Open Energy Info (EERE)

Reference LibraryAdd to library Legal Document- OtherOther: NMSLO Application for Permit to Conduct Geophysical Exploration on Unleased State LandsLegal Published NA Year...

88

Merging high resolution geophysical and geochemical surveys to...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Buttes, Oregon Innovative Exploration Technologies Maui Hawaii & Glass Buttes, Oregon Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical...

89

Geophysical Investigation and Assessment of the Rye Patch Known...  

Open Energy Info (EERE)

and Assessment of the Rye Patch Known Geothermal Resource Area, Rye Patch, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Dissertation: Geophysical...

90

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

Broader source: Energy.gov (indexed) [DOE]

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Principal Investigator: Greg Newman, Michael Fehler Organizations: LBL & MIT Track Name April...

91

2006 Annual Report Cecil H. & Ida M. Green Institute of Geophysics & Planetary Physics  

E-Print Network [OSTI]

Yehuda Bock, Research Geodesist and Senior Lecturer Catherine Constable, Professor of Geophysics Steven Constable, Professor of Geophysics J. Peter Davis, Specialist Catherine de Groot-Hedlin, Project Scientist

Constable, Steve

92

DALHOUSIE UNIVERSITY, DEPARTMENT OF EARTH SCIENCES Assistant Professor -Geophysics, Sedimentology, or Geochemistry  

E-Print Network [OSTI]

DALHOUSIE UNIVERSITY, DEPARTMENT OF EARTH SCIENCES Assistant Professor - Geophysics, Sedimentology position in Geophysics, Sedimentology, or Geochemistry. The appointment is probationary tenure

Brownstone, Rob

93

Identification and Characterization of Hydrogeologic Units at the Nevada Test Site Using Geophysical Logs: Examples from the Underground Test Area Project  

SciTech Connect (OSTI)

The diverse and complex geology of the Nevada Test Site region makes for a challenging environment for identifying and characterizing hydrogeologic units penetrated by wells drilled for the U.S. Department of Energy, National Nuclear Security Administration, Underground Test Area (UGTA) Environmental Restoration Sub-Project. Fortunately, UGTA geoscientists have access to large and robust sets of subsurface geologic data, as well as a large historical knowledge base of subsurface geological analyses acquired mainly during the underground nuclear weapons testing program. Of particular importance to the accurate identification and characterization of hydrogeologic units in UGTA boreholes are the data and interpretation principles associated with geophysical well logs. Although most UGTA participants and stakeholders are probably familiar with drill hole data such as drill core and cuttings, they may be less familiar with the use of geophysical logs; this document is meant to serve as a primer on the use of geophysical logs in the UGTA project. Standard geophysical logging tools used in the UGTA project to identify and characterize hydrogeologic units are described, and basic interpretation principles and techniques are explained. Numerous examples of geophysical log data from a variety of hydrogeologic units encountered in UGTA wells are presented to highlight the use and value of geophysical logs in the accurate hydrogeologic characterization of UGTA wells.

Lance Prothro, Sigmund Drellack, Margaret Townsend

2009-03-25T23:59:59.000Z

94

Geology and Geophysics College of Science code-BS  

E-Print Network [OSTI]

Geology and Geophysics College of Science code-BS Code-GEOP 120 Credits "C-"or better required Geology Field Experience (summer) (3) Science/Engineering Elective (2xxxx or above) (3) Science ******************************************************************************************************************************** (effective Fall 2013) #12;Geology and Geophysics http

Kihara, Daisuke

95

Geology and Geophysics College of Science code-BS  

E-Print Network [OSTI]

Geology and Geophysics College of Science code-BS Code-GEOP 120 Credits "C-"or better required Professional Elective (3xxxx and above) (6) EAPS 49000 Geology Field Experience (summer) (3) Science ******************************************************************************************************************************** (effective Fall 2013) #12;Geology and Geophysics Fall 2014 Department of Earth, Atmospheric, and Planetary

Kihara, Daisuke

96

Missouri University of Science and Technology 1 Geology and Geophysics  

E-Print Network [OSTI]

Missouri University of Science and Technology 1 Geology and Geophysics Graduate work in Geology are designed to provide you with an understanding of the fundamentals and principles of geology, geochemistry and Environmental Geochemistry · Mineralogy/Petrology/Economic Geology · Geophysics/Tectonics/Remote Sensing

Missouri-Rolla, University of

97

Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year)  

E-Print Network [OSTI]

Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Martinez (email: judy.martinez@utah.edu, office: 383 FASB, phone: 801-581-6553) Faculty Advisors-581-7250) Faculty Advisor for Environmental Science Emphasis, Geoscience Major ­ Prof. Dave Dinter (email: david

Johnson, Cari

98

Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2013-14 academic year)  

E-Print Network [OSTI]

Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Martinez (email: judy.martinez@utah.edu, office: 383 FASB, phone: 801-581-6553) Faculty Advisors Advisor for Environmental Science Emphasis, Geoscience Major ­ Prof. Dave Dinter (email: david

Johnson, Cari

99

New perspectives on superparameterization for geophysical turbulence  

SciTech Connect (OSTI)

This is a research expository paper regarding superparameterization, a class of multi-scale numerical methods designed to cope with the intermittent multi-scale effects of inhomogeneous geophysical turbulence where energy often inverse-cascades from the unresolved scales to the large scales through the effects of waves, jets, vortices, and latent heat release from moist processes. Original as well as sparse space–time superparameterization algorithms are discussed for the important case of moist atmospheric convection including the role of multi-scale asymptotic methods in providing self-consistent constraints on superparameterization algorithms and related deterministic and stochastic multi-cloud parameterizations. Test models for the statistical numerical analysis of superparameterization algorithms are discussed both to elucidate the performance of the basic algorithms and to test their potential role in efficient multi-scale data assimilation. The very recent development of grid-free seamless stochastic superparameterization methods for geophysical turbulence appropriate for “eddy-permitting” mesoscale ocean turbulence is presented here including a general formulation and illustrative applications to two-layer quasigeostrophic turbulence, and another difficult test case involving one-dimensional models of dispersive wave turbulence. This last test case has randomly generated solitons as coherent structures which collapse and radiate wave energy back to the larger scales, resulting in strong direct and inverse turbulent energy cascades.

Majda, Andrew J. [Center for Atmosphere Ocean Science, Courant Institute of Mathematical Sciences, New York University, 251 Mercer St., New York, NY 10012 (United States); Center for Prototype Climate Modelling, NYU Abu Dhabi, Abu Dhabi (United Arab Emirates); Grooms, Ian, E-mail: grooms@cims.nyu.edu [Center for Atmosphere Ocean Science, Courant Institute of Mathematical Sciences, New York University, 251 Mercer St., New York, NY 10012 (United States)

2014-08-15T23:59:59.000Z

100

Geophysical logging case history of the Raft River geothermal...  

Open Energy Info (EERE)

logging case history of the Raft River geothermal system, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geophysical logging case history of the...

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

airborne geophysical survey: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

V; Vaalsta, Timo P; Li, Ju; Blair, David G 2011-01-01 12 A Virtual Excavation: Combining 3D Immersive Virtual Reality and Geophysical Surveying Computer Technologies and...

102

airborne geophysical surveys: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

V; Vaalsta, Timo P; Li, Ju; Blair, David G 2011-01-01 12 A Virtual Excavation: Combining 3D Immersive Virtual Reality and Geophysical Surveying Computer Technologies and...

103

Accepted to the Journal Geophysical Research Laboratory measurements of electrical  

E-Print Network [OSTI]

1 Accepted to the Journal Geophysical Research Laboratory measurements of electrical conductivities measurements of electrical conductivities of natural magma compositions. The electrical conductivities of three. The electrical conductivity increases with temperature and is higher in the order tephrite, phonotephrite

Paris-Sud XI, Université de

104

Borehole geophysics evaluation of the Raft River geothermal reservoir...  

Open Energy Info (EERE)

HYDROTHERMAL SYSTEMS; NORTH AMERICA; PACIFIC NORTHWEST REGION; USA Authors Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace and T.L. Published Journal Geophysics, 21...

105

An Integrated Geophysical Analysis Of The Upper Crust Of The...  

Open Energy Info (EERE)

Of The Upper Crust Of The Southern Kenya Rift Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: An Integrated Geophysical Analysis Of The Upper...

106

A Geothermal Field Model Based On Geophysical And Thermal Prospectings...  

Open Energy Info (EERE)

Model Based On Geophysical And Thermal Prospectings In Nea Kessani (Ne Greece) Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Geothermal...

107

GEOPHYSICS, VOL. 62, NO. 5 (SEPTEMBER-OCTOBER 1997); P. 14191431, 15 FIGS. Inversion of geophysical data over a copper  

E-Print Network [OSTI]

of geophysical data over a copper gold porphyry deposit: A case history for Mt. Milligan Douglas W. Oldenburg polarization (IP), and airborne electromagnetic (EM) data from the Mt. Milligan copper-gold porphyry de- posit

Oldenburg, Douglas W.

108

Understanding biogeobatteries: Where geophysics meets microbiology  

SciTech Connect (OSTI)

Although recent research suggests that contaminant plumes behave as geobatteries that produce an electrical current in the ground, no associated model exists that honors both geophysical and biogeochemical constraints. Here, we develop such a model to explain the two main electrochemical contributions to self-potential signals in contaminated areas. Both contributions are associated with the gradient of the activity of two types of charge carriers, ions and electrons. In the case of electrons, bacteria act as catalysts for reducing the activation energy needed to exchange the electrons between electron donor and electron acceptor. Possible mechanisms that facilitate electron migration include iron oxides, clays, and conductive biological materials, such as bacterial conductive pili or other conductive extracellular polymeric substances. Because we explicitly consider the role of biotic processes in the geobattery model, we coined the term 'biogeobattery'. After theoretical development of the biogeobattery model, we compare model predictions with self-potential responses associated with laboratory and field-scale conducted in contaminated environments. We demonstrate that the amplitude and polarity of large (>100 mV) self-potential signatures requires the presence of an electronic conductor to serve as a bridge between electron donors and acceptors. Small self-potential anomalies imply that electron donors and electron acceptors are not directly interconnected, but instead result simply from the gradient of the activity of the ionic species that are present in the system.

Revil, A.; Mendonca, C.A.; Atekwana, E.A.; Kulessa, B.; Hubbard, S.S.; Bohlen, K.

2009-08-15T23:59:59.000Z

109

A Feasibility Study of Non-Seismic Geophysical Methods forMonitoring Geologic CO2 Sequestration  

SciTech Connect (OSTI)

Because of their wide application within the petroleumindustry it is natural to consider geophysical techniques for monitoringof CO2 movement within hydrocarbon reservoirs, whether the CO2 isintroduced for enhanced oil/gas recovery or for geologic sequestration.Among the available approaches to monitoring, seismic methods are by farthe most highly developed and applied. Due to cost considerations, lessexpensive techniques have recently been considered. In this article, therelative merits of gravity and electromagnetic (EM) methods as monitoringtools for geological CO2 sequestration are examined for two syntheticmodeling scenarios. The first scenario represents combined CO2 enhancedoil recovery (EOR) and sequestration in a producing oil field, theSchrader Bluff field on the north slope of Alaska, USA. The secondscenario is a simplified model of a brine formation at a depth of 1,900m.

Gasperikova, Erika; Hoversten, G. Michael

2006-07-01T23:59:59.000Z

110

SAGE, Summer of Applied Geophysical Experience  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to merge their data into a broader picture. The techniques used for this project were seismic refraction reflection (using a Vibroseis source), gravity, and electromagnetics...

111

Reactive Transport Modeling and Geophysical Monitoring of Bioclogging at Reservoir Scale  

E-Print Network [OSTI]

Reactive Transport Modeling and Geophysical Monitoring of Bioclogging at Reservoir Scale Vikranth scale using a combination of reactive transport modeling and geophysical imaging tools (EM & seismic Sacramento basin, California; the model well (Citizen Green #1) was characterized using sonic, electrical

Hubbard, Susan

112

NATIONAL GEOPHYSICAL RESEARCH INSTITUTE, HYDERABAD, INDIA. Induction Workshop: (18 -23 October, 2004)  

E-Print Network [OSTI]

. 13. Open session · Venue:: National Geophysical Research Institute (An ISO 9001 Organisation in different sectors of the Himalaya. #12;· Venue:: National Geophysical Research Institute (An ISO 9001

Harinarayana, T.

113

Potential-field geophysical programs for VAX 7xx computers; documentation  

SciTech Connect (OSTI)

A U.S. Geological Survey report is presented documenting potential-field geophysical programs for VAX 7xx computers.

Not Available

1989-01-01T23:59:59.000Z

114

Time-lapse Joint Inversion of Geophysical Data and its Applications...  

Broader source: Energy.gov (indexed) [DOE]

Objectives of the project * Forward modeling geophysical response with fluid flowheat modeling * Joint inversion (stochasticdeterministic) for ground water flow imaging *...

115

Geophysical monitoring of foam used to deliver remediation treatments within the vadose zone  

E-Print Network [OSTI]

relationships observed for unconsolidated sediments. Wateron unsaturated, unconsolidated sands. Geophysics 69:762-771.saturated and unsaturated unconsolidated samples (Vanhala

Wu, Y.

2013-01-01T23:59:59.000Z

116

Well casing-based geophysical sensor apparatus, system and method  

DOE Patents [OSTI]

A geophysical sensor apparatus, system, and method for use in, for example, oil well operations, and in particular using a network of sensors emplaced along and outside oil well casings to monitor critical parameters in an oil reservoir and provide geophysical data remote from the wells. Centralizers are affixed to the well casings and the sensors are located in the protective spheres afforded by the centralizers to keep from being damaged during casing emplacement. In this manner, geophysical data may be detected of a sub-surface volume, e.g. an oil reservoir, and transmitted for analysis. Preferably, data from multiple sensor types, such as ERT and seismic data are combined to provide real time knowledge of the reservoir and processes such as primary and secondary oil recovery.

Daily, William D. (Livermore, CA)

2010-03-09T23:59:59.000Z

117

Geophysical Investigations of Archaeological Resources in Southern Idaho  

SciTech Connect (OSTI)

At the Idaho National Laboratory and other locations across southern Idaho, geophysical tools are being used to discover, map, and evaluate archaeological sites. A variety of settings are being explored to expand the library of geophysical signatures relevant to archaeology in the region. Current targets of interest include: prehistoric archaeological features in open areas as well as lava tube caves, historical structures and activity areas, and emigrant travel paths. We draw from a comprehensive, state of the art geophysical instrumentation pool to support this work. Equipment and facilities include ground penetrating radar, electromagnetic and magnetic sensors, multiple resistivity instruments, advanced positioning instrumentation, state of the art processing and data analysis software, and laboratory facilities for controlled experiments.

Brenda Ringe Pace; Gail Heath; Clark Scott; Carlan McDaniel

2005-10-01T23:59:59.000Z

118

CURRICULUM VITAE TARJE NISSEN-MEYER address: ETH Zurich, Institute of Geophysics  

E-Print Network [OSTI]

CURRICULUM VITAE TARJE NISSEN-MEYER address: ETH Zurich, Institute of Geophysics Sonneggstrasse 5 of Geophysics, ETH Zurich, Switzerland 2008 - 2010 Postdoctoral Research Associate, Dept. of Geosciences, Institute of Geophysics, ETH Zurich 2008 ­ 2010 Ph.D. student co-superviser: Andrea Colombi, Percy Galvez

Nissen-Meyer, Tarje

119

Group X  

SciTech Connect (OSTI)

This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.

Fields, Susannah

2007-08-16T23:59:59.000Z

120

JournalofGeophysicalResearch: SpacePhysics RESEARCH ARTICLE  

E-Print Network [OSTI]

of the high-energy solar particles in interplanetary space. The method includes the determination , and I. G. Usoskin1,3 1 Sodankylä Geophysical Observatory (Oulu Unit), University of Oulu, Oulu, Finland, 2 Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria

Usoskin, Ilya G.

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

MODELING COUPLED FLUID FLOW AND GEOMECHANICAL AND GEOPHYSICAL PHENOMENA WITHIN  

E-Print Network [OSTI]

MODELING COUPLED FLUID FLOW AND GEOMECHANICAL AND GEOPHYSICAL PHENOMENA WITHIN A FINITE ELEMENT between pore fluid flow and the concurring deformation of the solid rock matrix. The governing equations and constitutive relations of fluid flow are coupled to stress-strain relations. With the appropriate boundary

122

2 Geophysical Aspects of Non-Newtonian Fluid Mechanics  

E-Print Network [OSTI]

2 Geophysical Aspects of Non-Newtonian Fluid Mechanics N.J. Balmforth1 and R.V. Craster2 1, London, SW7 2BZ, UK 2.1 Introduction Non-Newtonian fluid mechanics is a vast subject that has several journals partly, or primarily, dedicated to its investigation (Journal of Non-Newtonian Fluid Mechanics

Balmforth, Neil

123

Geophysical phenomena during an ionospheric modication experiment at Troms, Norway  

E-Print Network [OSTI]

Geophysical phenomena during an ionospheric modi®cation experiment at Tromsù, Norway N. F-9037, Tromsù, and The University Courses of Svalbard, Svalbard, Norway 3 EISCAT, N-9027 Ramfjùrdbotn, Norway Received: 13 October 1997 / Revised: 11 May 1998 / Accepted: 26 May 1998 Abstract. We present

Paris-Sud XI, Université de

124

Seismic petrophysics: An applied science for reservoir geophysics  

E-Print Network [OSTI]

Seismic petrophysics: An applied science for reservoir geophysics WAYNE D. PENNINGTON, Michigan a number of seismic attributes, using either prestack or poststack data, or even both in combination's intuition and, per- haps, wishful thinking, as a guide. This short paper introduces a new term "seismic

125

Deborah K. Smith Department of Geology and Geophysics, MS 22  

E-Print Network [OSTI]

Deborah K. Smith Department of Geology and Geophysics, MS 22 Woods Hole Oceanographic Institution: Jordan, T. H., H. W. Menard, and D.K. Smith, Density and size distribution of seamounts in the eastern. Smith, H. W. Menard, J. A. Orcutt and T. H. Jordan, Seismic reflection site survey: correlation

Smith, Deborah K.

126

Numerical Simulation in Applied Geophysics. From the Mesoscale to ...  

E-Print Network [OSTI]

Instituto del Gas y del Petr´oleo, Facultad de Ingenier?a UBA. †,†. Facultad de ... hydrocarbon exploration geophysics, mining and reservoir characterization and production. Local variations in the fluid ... physical process of wave propagation can be inspected during the experiment. ..... Black-Oil simulator. CO2 saturation ...

2013-07-05T23:59:59.000Z

127

Nonlinear Processes in Geophysics (2002) 9: 7578 Nonlinear Processes  

E-Print Network [OSTI]

Geophysical Society 2002 A universal mirror wave-mode threshold condition for non-thermal space plasma plasmas. As a result, the transition from two temperature Maxwellians to realistic non-thermal features type modes downstream of the Earth's bow shock were reported (Hubert et al., 1989). The dispersion

Paris-Sud XI, Université de

128

Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations  

E-Print Network [OSTI]

Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations be used to infer the location of magma chambers or productive geothermal areas. The Hengill volcanic triple-junction complex has a well-developed geothermal system, which is being exploited to extract hot

Paris-Sud XI, Université de

129

Nonlinear Processes in Geophysics (2001) 8: 201209 Nonlinear Processes  

E-Print Network [OSTI]

of prediction of climate changes due to hu- man activity. All anthropogenic actions on the climate sys- tem Geophysical Society 2001 Climate model attractors: chaos, quasi-regularity and sensitivity to small, Russia Received: 6 July 2000 ­ Revised: 25 October 2000 ­ Accepted: 28 November 2000 Abstract

Paris-Sud XI, Université de

130

Geophysical Research Abstracts Vol. 12, EGU2010-11992, 2010  

E-Print Network [OSTI]

, geological maps were focussed on solid geology. Present societal needs increasingly require knowledge of regolith properties: superficial studies combining geology, geochemistry and geophysics become essential km. This method provides maps of potassium (K), uranium (U) and thorium (Th) which are the only

Paris-Sud XI, Université de

131

Dismantling techniques  

SciTech Connect (OSTI)

Most of the dismantling techniques used in a Decontamination and Dismantlement (D and D) project are taken from conventional demolition practices. Some modifications to the techniques are made to limit exposure to the workers or to lessen the spread of contamination to the work area. When working on a D and D project, it is best to keep the dismantling techniques and tools as simple as possible. The workers will be more efficient and safer using techniques that are familiar to them. Prior experience with the technique or use of mock-ups is the best way to keep workers safe and to keep the project on schedule.

Wiese, E.

1998-03-13T23:59:59.000Z

132

Automata groups  

E-Print Network [OSTI]

-presentation. We also find the L-presentation for several other groups generated by three-state automata, and we describe the defining relations in the Grigorchuk groups G_w. In case when the sequence w is almost periodic these relations provide an L...

Muntyan, Yevgen

2010-01-16T23:59:59.000Z

133

Geophysics-based method of locating a stationary earth object  

DOE Patents [OSTI]

A geophysics-based method for determining the position of a stationary earth object uses the periodic changes in the gravity vector of the earth caused by the sun- and moon-orbits. Because the local gravity field is highly irregular over a global scale, a model of local tidal accelerations can be compared to actual accelerometer measurements to determine the latitude and longitude of the stationary object.

Daily, Michael R. (Albuquerque, NM); Rohde, Steven B. (Corrales, NM); Novak, James L. (Albuquerque, NM)

2008-05-20T23:59:59.000Z

134

Improved extraction of hydrologic information from geophysical data through coupled hydrogeophysical inversion  

SciTech Connect (OSTI)

There is increasing interest in the use of multiple measurement types, including indirect (geophysical) methods, to constrain hydrologic interpretations. To date, most examples integrating geophysical measurements in hydrology have followed a three-step, uncoupled inverse approach. This approach begins with independent geophysical inversion to infer the spatial and/or temporal distribution of a geophysical property (e.g. electrical conductivity). The geophysical property is then converted to a hydrologic property (e.g. water content) through a petrophysical relation. The inferred hydrologic property is then used either independently or together with direct hydrologic observations to constrain a hydrologic inversion. We present an alternative approach, coupled inversion, which relies on direct coupling of hydrologic models and geophysical models during inversion. We compare the abilities of coupled and uncoupled inversion using a synthetic example where surface-based electrical conductivity surveys are used to monitor one-dimensional infiltration and redistribution.

Hinnell, A.C.; Ferre, T.P.A.; Vrugt, J.A.; Huisman, J.A.; Moysey, S.; Rings, J.; Kowalsky, M.B.

2009-11-01T23:59:59.000Z

135

Investigation of novel geophysical techniques for monitoring CO2 movement during sequestration  

E-Print Network [OSTI]

seismic reflection method and by surface gravity measurements. Results for geology appropriate for south Texas (Liberty

Hoversten, G. Michael; Gasperikova, Erika

2003-01-01T23:59:59.000Z

136

Assessment of various geophysical techniques for Plains Indian archaeological site investigations  

E-Print Network [OSTI]

Development of the Missouri River Basin was authorized by the Flood Control Act of 1944 when six main stem dams were sited along the Missouri River. Construction of these darns has created a series of lakes which are currently experiencing high...

Klaff, Tamir Lee

1993-01-01T23:59:59.000Z

137

Potential-field geophysical programs for VAX 7xx computers; source code (programs H-P)  

SciTech Connect (OSTI)

A U.S. Geological Survey report is presented giving source code for potential-field geophysical programs (programs H-P) for VAX 7xx computers.

Not Available

1989-01-01T23:59:59.000Z

138

Potential-field geophysical programs for VAX 7xx computers; source code (programs A-G)  

SciTech Connect (OSTI)

A U.S. Geological Survey report is presented giving the source code of potential-field geophysical programs (programs A-G) for VAX 7xx computers.

Not Available

1989-01-01T23:59:59.000Z

139

Potential-field geophysical programs for VAX 7xx computers; source code (programs R-Y)  

SciTech Connect (OSTI)

A U.S. Geological Survey report is presented giving source code for Potential-field geophysical programs (programs R-Y) for VAX 7xx computers.

Not Available

1989-01-01T23:59:59.000Z

140

Institute of Geophysics and Planetary Physics 1993 annual report, October 1, 1992--September 30, 1993  

SciTech Connect (OSTI)

This report contains brief papers on the research being conducted at the Institute of Geophysics and Planetary Physics in 1993 in Geosciences, High-Pressure sciences, and Astrophysics.

Ryerson, F.J.; Budwine, C.M. [eds.

1994-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

E-Print Network 3.0 - air force geophysics Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

UCLA... Angeles Ph.D. in Geophysics and Space Physics 1997 National Taiwan University B.Sc. in Physics 1989... Employment History Jul. 2004 - present Associate Research...

142

An Integrated Model For The Geothermal Field Of Milos From Geophysical...  

Open Energy Info (EERE)

search OpenEI Reference LibraryAdd to library Journal Article: An Integrated Model For The Geothermal Field Of Milos From Geophysical Experiments Abstract The results of...

143

GEOPHYSICAL RESEARCH LETTERS, 2014GL060962R 2014, DOI:10.1029/, 1. Supplementary information  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, 2014GL060962R 2014, DOI:10.1029/, 1. Supplementary information 1, 2014, 2:15pm #12;GEOPHYSICAL RESEARCH LETTERS, 2014GL060962R 2014, DOI:10.1029/, (1) 72-day 60 S-60 N, 2014GL060962R 2014, DOI:10.1029/, climatological fluxes, generated from CERES data over the 2001

Allan, Richard P.

144

MULTI-SCALE ANALYSIS OF MULTIPARAMETER GEOPHYSICAL AND GEOCHEMICAL DATA FROM  

E-Print Network [OSTI]

MULTI-SCALE ANALYSIS OF MULTIPARAMETER GEOPHYSICAL AND GEOCHEMICAL DATA FROM ACTIVE VOLCANIC Name: MAURI Guillaume Degree: PhD of Science Title of Thesis: Multi-scale analysis of multiparameter geophysical and geochemical data from active volcanic systems Examining Committee: Chair: Dr John Clague

Williams-Jones, Glyn

145

Geology and Geophysics: Building Partnerships Forging New Links and Strengthening Old Ones Builds a Stronger Department  

E-Print Network [OSTI]

, course-work tracks that equip students for roles in industry, geological engineering, oil and mineralGeology and Geophysics: Building Partnerships Forging New Links and Strengthening Old Ones Builds. The Geology and Geophysics Department at the University of Utah has a long history of successful partnerships

Johnson, Cari

146

AFFILIATIONS: Smith, minder, nugent, and Storelvmo--Department of Geology and Geophysics, Yale University, New  

E-Print Network [OSTI]

AFFILIATIONS: Smith, minder, nugent, and Storelvmo-- Department of Geology and Geophysics, Yale Science, University of Wyoming, Laramie, Wyoming CORRESPONDING AUTHOR: Professor Ronald B. Smith, Dept. of Geology and Geophysics, Yale University, P.O. Box 208109, New Haven, CT 06520-8109 E-mail: ronald.smith

Minder, Justin

147

GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, The influence of non-uniform ambient noise on1  

E-Print Network [OSTI]

, Institute of Geophysics, ETH Zurich, Sonneggstrasse 5, Zurich, Switzerland. T. Nissen-Meyer, Institute of Geophysics, ETH Zurich, Sonneggstrasse 5, Zurich, Switzerland. Olaf Schenk, Institute of Computational of Geophysics, ETH Zurich, Sonneggstrasse 5, Zurich, Switzerland. 3 ISTEP, UMR 7193, UPMC Universite Paris 6

Paris-Sud XI, Université de

148

Electrochemical Techniques  

SciTech Connect (OSTI)

Sensitive and selective detection techniques are of crucial importance for capillary electrophoresis (CE), microfluidic chips, and other microfluidic systems. Electrochemical detectors have attracted considerable interest for microfluidic systems with features that include high sensitivity, inherent miniaturization of both the detection and control instrumentation, low cost and power demands, and high compatibility with microfabrication technology. The commonly used electrochemical detectors can be classified into three general modes: conductimetry, potentiometry, and amperometry.

Chen, Gang; Lin, Yuehe

2008-07-20T23:59:59.000Z

149

User's manual for geophysical well-logging software programs  

SciTech Connect (OSTI)

Since 1958 the Ground-Water Surveillance Program for the Hanford Site has made geophysical logging measurements in most of the 800 wells and deep boreholes that have been drilled on the Hanford Site. In 1980 the Pacific Northwest Laboratory (PNL), which conducts the Ground-Water Surveillance Program, began forming a computerized data base for storing and retrieving geophysical well log data and developing software for quantitative analysis of the well log data. This report, designed to serve as a user's guide, documents the data base system that handles the well log data. Two programs, DIGLOG1 and LOGIT, are used to manipulate the data. The program DIGLOG1 translates analog paper strip charts into digital format; the program LOGIT is a general utility program that edits, displays, checks, stores, writes, and deletes sets of well log data. These two programs do not provide sophisticated display and analytical capabilities; rather, they provide programs that give the user easy access to powerful standard analytical software.

Petrie, G.M.; Gibson, D.; Blair, S.C.

1983-02-01T23:59:59.000Z

150

SURFACE GEOPHYSICAL EXPLORATION DEVELOPING NONINVASIVE TOOLS TO MONITOR PAST LEAKS AROUND HANFORD TANK FARMS  

SciTech Connect (OSTI)

A characterization program has been developed at Hanford to image past leaks in and around the underground storage tank facilities. The program is based on electrical resistivity, a geophysical technique that maps the distribution of electrical properties of the subsurface. The method was shown to be immediately successful in open areas devoid of underground metallic infrastructure, due to the large contrast in material properties between the highly saline waste and the dry sandy host environment. The results in these areas, confirmed by a limited number of boreholes, demonstrate a tendency for the lateral extent of the underground waste plume to remain within the approximate footprint of the disposal facility. In infrastructure-rich areas, such as tank farms, the conventional application of electrical resistivity using small point-source surface electrodes initially presented a challenge for the resistivity method. The method was then adapted to directly use the buried infrastructure as electrodes for both transmission of electrical current and measurements of voltage. For example, steel-cased wells that surround the tanks were used as long electrodes, which helped to avoid much of the infrastructure problems. Overcoming the drawbacks of the long electrode method has been the focus of our work over the past seven years. The drawbacks include low vertical resolution and limited lateral coverage. The lateral coverage issue has been improved by supplementing the long electrodes with surface electrodes in areas devoid of infrastructure. The vertical resolution has been increased by developing borehole electrode arrays that can fit within the small-diameter drive casing of a direct push rig. The evolution of the program has led to some exceptional advances in the application of geophysical methods, including logistical deployment of the technology in hazardous areas, development of parallel processing resistivity inversion algorithms, and adapting the processing tools to accommodate electrodes of all shapes and locations. The program is accompanied by a full set of quality assurance procedures that cover the layout of sensors, measurement strategies, and software enhancements while insuring the integrity of stored data. The data have been shown to be useful in identifying previously unknown contaminant sources and defining the footprint of precipitation recharge barriers to retard the movement of existing contamination.

MYERS DA; RUCKER DF; LEVITT MT; CUBBAGE B; NOONAN GE; MCNEILL M; HENDERSON C

2011-06-17T23:59:59.000Z

151

Proposed geologic model based on geophysical well logs  

SciTech Connect (OSTI)

An investigation of the subsurface based on a qualitative interpretation of well logs was carried out at Cerro Prieto to obtain information on the distribution of the different lithofacies that make up a deltaic depositional system. The sedimentological interpretation derived from the resistivity and spontaneous potential are shown in several cross-sections of the field. In addition to the sedimentological interpretation, a map of the structural geology of the region based on well logs and available geophysical information was prepared, including the results of gravity and seismic refraction surveys. The depth to the zone of hydrothermal alteration described by Elders (1980) was found by means of temperature, electrical, and radioactive logs. Two maps showing the configuration of the top of this anomaly show a clear correlation with the gravity anomalies found in the area.

Diaz C, S.; Puente C, I.; de la Pena L, A.

1981-01-01T23:59:59.000Z

152

Deterministic treatment of model error in geophysical data assimilation  

E-Print Network [OSTI]

This chapter describes a novel approach for the treatment of model error in geophysical data assimilation. In this method, model error is treated as a deterministic process fully correlated in time. This allows for the derivation of the evolution equations for the relevant moments of the model error statistics required in data assimilation procedures, along with an approximation suitable for application to large numerical models typical of environmental science. In this contribution we first derive the equations for the model error dynamics in the general case, and then for the particular situation of parametric error. We show how this deterministic description of the model error can be incorporated in sequential and variational data assimilation procedures. A numerical comparison with standard methods is given using low-order dynamical systems, prototypes of atmospheric circulation, and a realistic soil model. The deterministic approach proves to be very competitive with only minor additional computational c...

Carrassi, Alberto

2015-01-01T23:59:59.000Z

153

Geophysical evidence of multiple glacier advances in Lago Fagnano (54 southernmost Patagonia  

E-Print Network [OSTI]

Geophysical evidence of multiple glacier advances in Lago Fagnano (54 S), southernmost Patagonia t The Island of Tierra del Fuego, at the southernmost extreme of Patagonia, is located in one of the most

Gilli, Adrian

154

The dynamics of oceanic transform faults : constraints from geophysical, geochemical, and geodynamical modeling  

E-Print Network [OSTI]

Segmentation and crustal accretion at oceanic transform fault systems are investigated through a combination of geophysical data analysis and geodynamical and geochemical modeling. Chapter 1 examines the effect of fault ...

Gregg, Patricia Michelle Marie

2008-01-01T23:59:59.000Z

155

Geophysical Fault Mapping Using the Magnetic Method at Hickory Sandstone Aquifer, Llano Uplift, Texas  

E-Print Network [OSTI]

A magnetic study over a 95 m x 150 m area of the Hickory sandstone aquifer in central Texas was carried out as part of multitechnique geophysical investigation that included ground penetrating radar (GPR), electromagnetic (EM), seismic...

Pereira, Antonio Do Nascimento

2013-04-05T23:59:59.000Z

156

Reduced rank filtering in chaotic systems with application in geophysical sciences  

E-Print Network [OSTI]

Recent technological advancements have enabled us to collect large volumes of geophysical noisy measurements that need to be combined with the model forecasts, which capture all of the known properties of the underlying ...

Ahanin, Adel, 1977-

2008-01-01T23:59:59.000Z

157

Electrical conductivity of continental lithospheric mantle from integrated geophysical and petrological modeling  

E-Print Network [OSTI]

Electrical conductivity of continental lithospheric mantle from integrated geophysical; published 11 October 2011. [1] The electrical conductivity of mantle minerals is highly sensitive, and compositional variations. The bulk electrical conductivity model has been integrated into the software package

Jones, Alan G.

158

Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study of the solar interior  

E-Print Network [OSTI]

Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study of another new branch of seismology recently developed in petroleum reservoir seismology is commonly known in the petroleum industry, differs from earlier

Crawford, Ian

159

A GEOLOGICAL AND GEOPHYSICAL STUDY OF THE BACA GEOTHERMAL FIELD, VALLES CALDERA, NEW MEXICO  

E-Print Network [OSTI]

Rio Arriba Counties, New Mexico. Union Oil Internal ReportGoil Company of California, and Public Service Company of New Mexico,New Mexico. Private geophysical survey for Union Oil Co.

Wilt, M.

2011-01-01T23:59:59.000Z

160

A GEOLOGICAL AND GEOPHYSICAL STUDY OF THE BACA GEOTHERMAL FIELD, VALLES CALDERA, NEW MEXICO  

E-Print Network [OSTI]

oil Company of California, and Public Service Company of New Mexico,Rio Arriba Counties, New Mexico. Union Oil Internal ReportGNew Mexico. Private geophysical survey for Union Oil Co.

Wilt, M.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Summary and evaluation of existing geological and geophysical data near prospective surface facilities in Midway Valley, Yucca Mountain Project, Nye County, Nevada; Yucca Mountain Site Characterization Project  

SciTech Connect (OSTI)

Midway Valley, located at the eastern base of the Yucca Mountain in southwestern Nevada, is the preferred location of the surface facilities for the potential high-level nuclear waste repository at Yucca Mountain. One goal in siting these surface facilities is to avoid faults that could produce relative displacements in excess of 5 cm in the foundations of the waste-handling buildings. This study reviews existing geologic and geophysical data that can be used to assess the potential for surface fault rupture within Midway Valley. Dominant tectonic features in Midway Valley are north-trending, westward-dipping normal faults along the margins of the valley: the Bow Ridge fault to the west and the Paintbrush Canyon fault to the east. Published estimates of average Quaternary slip rates for these faults are very low but the age of most recent displacement and the amount of displacement per event are largely unknown. Surface mapping and interpretive cross sections, based on limited drillhole and geophysical data, suggest that additional normal faults, including the postulated Midway Valley fault, may exist beneath the Quaternary/Tertiary fill within the valley. Existing data, however, are inadequate to determine the location, recency, and geometry of this faulting. To confidently assess the potential for significant Quaternary faulting in Midway Valley, additional data are needed that define the stratigraphy and structure of the strata beneath the valley, characterize the Quaternary soils and surfaces, and establish the age of faulting. The use of new and improved geophysical techniques, combined with a drilling program, offers the greatest potential for resolving subsurface structure in the valley. Mapping of surficial geologic units and logging of soil pits and trenches within these units must be completed, using accepted state-of-the-art practices supported by multiple quantitative numerical and relative age-dating techniques.

Gibson, J.D. [Sandia National Labs., Albuquerque, NM (United States); Swan, F.H.; Wesling, J.R.; Bullard, T.F.; Perman, R.C.; Angell, M.M.; DiSilvestro, L.A. [Geomatrix Consultants, Inc., San Francisco, CA (United States)

1992-01-01T23:59:59.000Z

163

REVIEWS OF GEOPHYSICS, SUPPLEMENT, PAGES 585-589, JULY 1995 U.S. NATIONAL REPORT TO INTERNATIONAL UNION OF GEODESY A N D GEOPHYSICS 1991-1994  

E-Print Network [OSTI]

of coronal mass ejections (CMEs) [Kahler 1992], it was tempting to assume that the particle accel eration emphasized the presence of two accel eration mechanisms and prophetically suggested that particle abundances UNION OF GEODESY A N D GEOPHYSICS 1991-1994 Solar energetic particles: A paradigm shift Donald V. Reames

Reames, Donald V.

164

Role of Geological and Geophysical Data in Modeling a Southwestern...  

Open Energy Info (EERE)

values are available. A two-dimensional, finite-difference, ground-water flow computer code was used to evaluate the effectiveness of the parameter-estimation technique....

165

Role of borehole geophysics in defining the physical characteristics...  

Open Energy Info (EERE)

the reservoir is based on much less corroborative evidence. Extensive use was made of computer plotting techniques to arrive at some interpretations.Both the stratigraphic...

166

Evaluating Sparse Data Storage Techniques for MPI Groups and Communicators  

E-Print Network [OSTI]

with registered memory, which further reduces the memory utilization for these network interconnects. The work a particular operation. The larger fraction of the memory utilized by an MPI library is however allocated was not considered to have a high priority for a while, recent hardware developments force us to rethink some

Gabriel, Edgar

167

Advisory Group On The Application Of Nuclear Techniques To Geothermal  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWaterBrasil Jump to:IowaResource Evaluation Andwebsite Jump

168

GEOPHYSICAL RESEARCH LETTERS, VOL. 30. NO. 10, 10.1029/2003GL038308, 2003 A 3-D geodynamic model of lateral crustal flow  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 30. NO. 10, 10.1029/2003GL038308, 2003 A 3-D geodynamic model 2003 by the American Geophysical Union. Paper number 2003GL018308. 0094-8762/2003GL018308 This volume

Liu, Mian

169

Department of Geology and Geophysics-Frederick A. Sutton Building 115 South 1460 East, Room 383, Salt Lake City, Utah 84112-0102  

E-Print Network [OSTI]

Department of Geology and Geophysics- Frederick A. Sutton Building to The University of Utah Department of Geology and Geophysics Donor's Information, to the Department of Geology and Geophysics of the University of Utah as an unrestricted gift. Fill out and sign

Johnson, Cari

170

Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, 1996 Annual Report  

SciTech Connect (OSTI)

The Institute of Geophysics and Planetary Physics (IGPP) is a Multicampus Research Unit of the University of California (UC). IGPP was founded in 1946 at UC Los Angeles with a charter to further research in the earth and planetary sciences and in related fields. The Institute now has branches at UC campuses in Los Angeles, San Diego, and Riverside, and at Los Alamos and Lawrence Livermore national laboratories. The University-wide IGPP has played an important role in establishing interdisciplinary research in the earth and planetary sciences. For example, IGPP was instrumental in founding the fields of physical oceanography and space physics, which at the time fell between the cracks of established university departments. Because of its multicampus orientation, IGPP has sponsored important interinstitutional consortia in the earth and planetary sciences. Each of the five branches has a somewhat different intellectual emphasis as a result of the interplay between strengths of campus departments and Laboratory programs. The IGPP branch at Lawrence Livermore National Laboratory (LLNL) was approved by the Regents of the University of California in 1982. IGPP-LLNL emphasizes research in seismology, geochemistry, cosmochemistry, and astrophysics. It provides a venue for studying the fundamental aspects of these fields, thereby complementing LLNL programs that pursue applications of these disciplines in national security and energy research. IGPP-LLNL is directed by Charles Alcock and was originally organized into three centers: Geosciences, stressing seismology; High-Pressure Physics, stressing experiments using the two-stage light-gas gun at LLNL; and Astrophysics, stressing theoretical and computational astrophysics. In 1994, the activities of the Center for High-Pressure Physics were merged with those of the Center for Geosciences. The Center for Geosciences, headed by Frederick Ryerson, focuses on research in geophysics and geochemistry. The Astrophysics Research Center, headed by Charles Alcock, provides a home for theoretical and observational astrophysics and serves as an interface with the Physics and Space Technology Department's Laboratory for Experimental Astrophysics and with other astrophysics efforts at LLNL. The IGPP branch at LLNL (as well as the branch at Los Alamos) also facilitates scientific collaborations between researchers at the UC campuses and those at the national laboratories in areas related to earth science, planetary science, and astrophysics. It does this by sponsoring the University Collaborative Research Program (UCRP), which provides funds to UC campus scientists for joint research projects with LLNL. The goals of the UCRP are to enrich research opportunities for UC campus scientists by making available to them some of LLNL's unique facilities and expertise, and to broaden the scientific program at LLNL through collaborative or interdisciplinary work with UC campus researchers. UCRP funds (provided jointly by the Regents of the University of California and by the Director of LLNL) are awarded annually on the basis of brief proposals, which are reviewed by a committee of scientists from UC campuses, LLNL programs, and external universities and research organizations. Typical annual funding for a collaborative research project ranges from $5,000 to $25,000. Funds are used for a variety of purposes, including salary support for visiting graduate students, postdoctoral fellows, and faculty; released-time salaries for LLNL scientists; and costs for experimental facilities. Although the permanent LLNL staff assigned to IGPP is relatively small (presently about five full-time equivalents), IGPP's research centers have become vital research organizations. This growth has been possible because of IGPP support for a substantial group of resident postdoctoral fellows; because of the 20 or more UCRP projects funded each year; and because IGPP hosts a variety of visitors, guests, and faculty members (from both UC and other institutions) on sabbatical leave. To focus attention on areas of topical interest i

Ryerson, F. J., Institute of Geophysics and Planetary Physics

1998-03-23T23:59:59.000Z

171

Geophysical characterization of mineral and energy resources at Yucca Mountain and vicinity, Nevada  

SciTech Connect (OSTI)

This report was prepared for the Yucca Mountain Project (Department of Energy) as part of the study of the mineral and energy resource potential of the site (Activity 8.3.1.9.2.1.5) under the Human Interference part of the program. Most of the 1991 geophysical scoping activities in the Mineral Resources Study were involved with the acquisition and evaluation of existing data. This report presents an overview of how geophysical data (existing and planned) will aid in the evaluation of the potential for mineral and energy resource potential at Yucca Mountain and vicinity.

Langenheim, V.E.; Oliver, H.W. [Geological Survey, Menlo Park, CA (United States); Hoover, D.B. [Geological Survey, Denver, CO (United States)

1991-12-31T23:59:59.000Z

172

Geophysical remote sensing of water reservoirs suitable for desalinization.  

SciTech Connect (OSTI)

In many parts of the United States, as well as other regions of the world, competing demands for fresh water or water suitable for desalination are outstripping sustainable supplies. In these areas, new water supplies are necessary to sustain economic development and agricultural uses, as well as support expanding populations, particularly in the Southwestern United States. Increasing the supply of water will more than likely come through desalinization of water reservoirs that are not suitable for present use. Surface-deployed seismic and electromagnetic (EM) methods have the potential for addressing these critical issues within large volumes of an aquifer at a lower cost than drilling and sampling. However, for detailed analysis of the water quality, some sampling utilizing boreholes would be required with geophysical methods being employed to extrapolate these sampled results to non-sampled regions of the aquifer. The research in this report addresses using seismic and EM methods in two complimentary ways to aid in the identification of water reservoirs that are suitable for desalinization. The first method uses the seismic data to constrain the earth structure so that detailed EM modeling can estimate the pore water conductivity, and hence the salinity. The second method utilizes the coupling of seismic and EM waves through the seismo-electric (conversion of seismic energy to electrical energy) and the electro-seismic (conversion of electrical energy to seismic energy) to estimate the salinity of the target aquifer. Analytic 1D solutions to coupled pressure and electric wave propagation demonstrate the types of waves one expects when using a seismic or electric source. A 2D seismo-electric/electro-seismic is developed to demonstrate the coupled seismic and EM system. For finite-difference modeling, the seismic and EM wave propagation algorithms are on different spatial and temporal scales. We present a method to solve multiple, finite-difference physics problems that has application beyond the present use. A limited field experiment was conducted to assess the seismo-electric effect. Due to a variety of problems, the observation of the electric field due to a seismic source is not definitive.

Aldridge, David Franklin; Bartel, Lewis Clark; Bonal, Nedra; Engler, Bruce Phillip

2009-12-01T23:59:59.000Z

173

College of Natural Science and Mathematics Department of Geology and Geophysics  

E-Print Network [OSTI]

gEology College of Natural Science and Mathematics Department of Geology and Geophysics 907-474-7565 www.uaf.edu/geology/ MS, phD Degrees Minimum Requirements for Degrees: MS: 30 credits; PhD: 18 thesis credits Graduates in geology have broad backgrounds in the earth sciences and firm foundations

Hartman, Chris

174

College of Natural Science and Mathematics Department of Geology and Geophysics  

E-Print Network [OSTI]

geoscience College of Natural Science and Mathematics Department of Geology and Geophysics 907-474-7565 www.uaf.edu/geology/ Bs Degree Minimum Requirements for Degree: 120 credits Graduates in geoscience. Four con- centrations are available to allow students to pursue their own emphasis: geology

Hartman, Chris

175

Department of Geology and Geophysics, University of Utah Spring 2002 down to earth  

E-Print Network [OSTI]

1 Department of Geology and Geophysics, University of Utah Spring 2002 down to earth Message From of Bill Parry and Duke Picard resulted in openings in both Geological Engineer- ing and Sedimentary Geology. Our search for their replacements has been successful and we are once again at full strength

Johnson, Cari

176

Internal geophysics (Physics of Earth's interior) Jump conditions and dynamic surface tension at permeable  

E-Print Network [OSTI]

Internal geophysics (Physics of Earth's interior) Jump conditions and dynamic surface tension of momentum across the interface, a possibly anisotropic surface tension and terms including an inter- face equals the jump of pressure; and in the presence of surface tension defined as a capillary action due

177

1340 The Leading Edge October 2008 SAGE celebrates 25 years of learning geophysics by  

E-Print Network [OSTI]

geophysics The increasing world demand and record-high costs for energy and mineral resources, along to unprecedented levels. This is not only a national need; it's a critical global need. As Earth scientists sites, and studying subsurface structure and water resources of the Rio Grande rift near Santa Fe, New

178

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Auxiliary material for paper 2011GL048739  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Auxiliary material for paper 2011GL), The reversibil- ity of sea ice loss in a state-of-the-art climate model, Geophys. Res. Lett., doi: 10.1029/2011GL the simulation but may take on different values depending on season and hemisphere. Figure S1g-l shows

Bitz, Cecilia

179

An edited version of this paper was published by AGU. Copyright 2005 American Geophysical Union.  

E-Print Network [OSTI]

Atlantic Ocean- Atmosphere Interaction, Geophysical Research Letters 32, L24619, doi: 10.1029/2005GL024871 et al., 2005 1 Observations of SST, Heat Flux and North Atlantic Ocean-Atmosphere Interaction# Na Wen is generated largely by the surface heat flux, and then forces the early winter atmosphere through the release

Wisconsin at Madison, University of

180

Global Land Ice Measurements from Space Publisher: Springer Praxis Books, Subseries: Geophysical Sciences  

E-Print Network [OSTI]

Global Land Ice Measurements from Space Publisher: Springer Praxis Books, Subseries: Geophysical perceptions about the importance of fluctuations of glaciers and ice sheets (Jeffrey S. Kargel) 1.1Early.2.2. Modern impacts of changing glaciers and ice sheets on people 0.2.3. Recent public perceptions about

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, A Subordinated Kinematic Wave Equation for  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, A Subordinated Kinematic Wave this assumption, a subordinated kinematic wave equa- tion is proposed for moderately to highly heterogeneous at Urbana-Champaign, Illinois, USA. 5 Also at: Department of Water Management, Faculty of Civil Engineering

Bäumer, Boris

182

Major results of geophysical investigations at Yucca Mountain and vicinity, southern Nevada  

SciTech Connect (OSTI)

In the consideration of Yucca Mountain as a possible site for storing high level nuclear waste, a number of geologic concerns have been suggested for study by the National Academy of Sciences which include: (1) natural geologic and geochemical barriers, (2) possible future fluctuations in the water table that might flood a mined underground repository, (3) tectonic stability, and (4) considerations of shaking such as might be caused by nearby earthquakes or possible volcanic eruptions. This volume represents the third part of an overall plan of geophysical investigation of Yucca Mountain, preceded by the Site Characterization Plan (SCP; dated 1988) and the report referred to as the Geophysical White Paper, Phase 1, entitled Status of Data, Major Results, and Plans for Geophysical Activities, Yucca Mountain Project (Oliver and others, 1990). The SCP necessarily contained uncertainty about applicability and accuracy of methods then untried in the Yucca Mountain volcano-tectonic setting, and the White Paper, Phase 1, focused on summarization of survey coverage, data quality, and applicability of results. For the most part, it did not present data or interpretation. The important distinction of the current volume lies in presentation of data, results, and interpretations of selected geophysical methods used in characterization activities at Yucca Mountain. Chapters are included on the following: gravity investigations; magnetic investigations; regional magnetotelluric investigations; seismic refraction investigations; seismic reflection investigations; teleseismic investigations; regional thermal setting; stress measurements; and integration of methods and conclusions. 8 refs., 60 figs., 2 tabs.

Oliver, H.W.; Ponce, D.A. [eds.] [Geological Survey, Menlo Park, CA (United States); Hunter, W.C. [ed.] [Geological Survey, Denver, CO (United States). Yucca Mountain Project Branch

1995-12-31T23:59:59.000Z

183

Geophysical flight line flying and flight path recovery utilizing the Litton LTN-76 inertial navigation system  

SciTech Connect (OSTI)

The Litton LTN-76 Inertial Navigation Systems (INS) with Inertial Track guidance System (ITGS) software is geared toward the airborne survey industry. This report is a summary of tests performed with the LTN-76 designed to fly an airborne geophysical survey as well as to recover the subsequent flight path utilizing INS derived coordinates.

Mitkus, A.F.; Cater, D.; Farmer, P.F.; Gay, S.P. Jr.

1981-11-01T23:59:59.000Z

184

In this article, I suggest a new style of geophysics as a critical system, which  

E-Print Network [OSTI]

geophysics for the oil industry is that the high-resolution details of fluid-sat- urated reservoirs and rocks effects. Those proven to date include: (1) oil production that has been shown by Heffer et al the virtual reality!). We extract oil from an integrated crack-critical rock mass. Future advances depend

185

Marine Geophysical Researches 21: 489511, 2000. 2000 Kluwer Academic Publishers. Printed in the Netherlands.  

E-Print Network [OSTI]

, UK; 3Department of Geology & Geophysics, School of Ocean & Earth Science &Technology, University margins, map series, multibeam bathymetry, tectonic erosion, Tonga forearc, Tonga Trench Abstract Four new-going programs in the region, particularly the Ocean Drilling Program (ODP) and the National Science Foundation

Wright, Dawn Jeannine

186

Optimisation of seismic network design: Application to a geophysical international lunar network  

E-Print Network [OSTI]

Optimisation of seismic network design: Application to a geophysical international lunar network. Informations about lunar seismicity and seismic subsurface models from the Apollo missions are used as a priori information in this study to optimise the geometry of future lunar seismic networks in order to best resolve

Sambridge, Malcolm

187

Annales Geophysicae (2002) 20: 711715 c European Geophysical Society 2002 Geophysicae  

E-Print Network [OSTI]

Annales Geophysicae (2002) 20: 711­715 c European Geophysical Society 2002 Annales Geophysicae al. (1973), Gedzelman (2000), Atlas (2001), and many cloud atlases and web-sites. Fallstreaks that parent clouds of fallstreaks are often located in a layer of strong wind-shear, adiabatic lapse rate

Paris-Sud XI, Université de

188

EOS (transactions, American Geophysical Union) Volume 90, number 43, pp. 386-387.  

E-Print Network [OSTI]

EOS (transactions, American Geophysical Union) Volume 90, number 43, pp. 386-387. 27 October 2009. For a typical incident solar flux of 240 watts per square meter at the snow sur- face in the Arctic during and 2008. The expeditions were carried out as a central part of a com- prehensive IPY survey over

Warren, Stephen

189

Course: Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale  

E-Print Network [OSTI]

exploration geophysics, mining and reservoir characterization and production, among other fields. Local of wave-induced fluid pressure gradients via a slow-wave diffusion process that can be analyzed using inexpensive and informative, allowing to inspect the physical process of wave propagation using alternative

Santos, Juan

190

Charles A. Stock Research Oceanographer, NOAA/Geophysical Fluid Dynamics Laboratory  

E-Print Network [OSTI]

Change Impacts on Living Marine Resources", 2012 Ocean Sciences Meeting, Salt Lake City 2012-13 MemberCharles A. Stock Research Oceanographer, NOAA/Geophysical Fluid Dynamics Laboratory Princeton-mail: Charles.Stock@noaa.gov Education 2005 Ph.D., Woods Hole Oceanographic Institution/MIT Joint Program Civil

191

Electrical properties of saline ices and ice-silicate mixtures: geophysical and astrobiological consequences (Invited)  

E-Print Network [OSTI]

MR22A-05 Electrical properties of saline ices and ice-silicate mixtures: geophysical) electrical-properties measurements of laboratory- produced saline ice, salt hydrates, and ice-silicate cutoff. In ice-silicate mixtures, brine channels are evident above the eutectic temperature only when

Stillman, David E.

192

Carbon Sequestration and Its Role in the Global Carbon Cycle Geophysical Monograph Series 183  

E-Print Network [OSTI]

73 Carbon Sequestration and Its Role in the Global Carbon Cycle Geophysical Monograph Series 183. Blaine Metting2 The purpose of this chapter is to review terrestrial biological carbon sequestration Northwest National Laboratory, Richland, Washington, USA. #12;74 TERRESTRIAL BIOLOGICAL CARBON SEqUESTRATION

Pennycook, Steve

193

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. , XXXX, DOI:10.1029/, Magnetic Flux Emergence in the Sun  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. , XXXX, DOI:10.1029/, Magnetic Flux Emergence in the Sun V­dimensional evolution of solar eruptions as they leave the Sun and move into the interplanetary space. One of the most important processes, responsible for many dynamical phenomena ob­ served in the Sun, is the emergence

Sengun, Mehmet Haluk

194

Nonlinear Processes in Geophysics (2003) 21: 113120 Nonlinear Processes  

E-Print Network [OSTI]

for the acceleration and heating of the solar wind. We are specifically interested in testing models in which plasma turbulence plays a role, by heating and accelerating the solar wind. The ideal obser- vational test of the few techniques available to us is radio remote sensing measurements, which furnish informa- tion

Paris-Sud XI, Université de

195

Selmer groups as flat cohomology groups  

E-Print Network [OSTI]

Given a prime number p, Bloch and Kato showed how the p Selmer group of an abelian variety A over a number field K is determined by the p-adic Tate module. In general, the pm1-Selmer group Selpmn A need not be determined ...

?esnavi?ius, K?stutis

2014-01-01T23:59:59.000Z

196

1. Tsubono Group 1 1 Tsubono Group  

E-Print Network [OSTI]

optical fiber ­ Test of the law of gravitation at extremely small distance references [1] Y. Aso, M. Ando1. Tsubono Group 1 1 Tsubono Group Research Subjects: Experimental Relativity, Gravitational Wave Physics, Laser Inter- ferometer Member: Kimio TSUBONO and Masaki ANDO The detection of gravitational waves

Ejiri, Shinji

197

QEP WORKING GROUP CHARGES Assessment Working Group  

E-Print Network [OSTI]

and a framework that details timelines, leadership, resource allocation, and an assessment plan that is clearlyQEP WORKING GROUP CHARGES Assessment Working Group The topic of the QEP should fit should be supported by a thorough understanding of the institutional context and by assessment data

Liu, Paul

198

Student Groups Student Group Description Short Description  

E-Print Network [OSTI]

Student Groups Student Group Description Short Description AHR Scholar-Architecture Scholar ART Honors - Architecture Honors H04 Honors - Allied Medical Prof Honors H05 Honors - Arts & Sciences Honors H14 Honors - Envir&Natural Resources Honors H15 Honors - Food, Agr, & Envir Sci Honors H16 Honors

199

The HERMES RICH group  

E-Print Network [OSTI]

hydrophobic aerogel. A lightweight mirror was constructed using a newly perfected technique to make resin-coated

N. Akopov; E. C. Aschenauer; K. Bailey; S. Bernreuther; N. Bianchi; G. P. Capitani; P. Carter; E. Cisbani; R. De Leo; E. De Sanctis; V. Djordjadze; S. Frullani; F. Garibaldi; J. -o. Hansen; B. Hommez; M. Iodice; H. E. Jackson; P. Jung; R. Kaiser; J. Kanesaka; R. Kowalczyk; L. Lagamba; A. Maas; V. Muccifora; K. Negodaeva; W. -d. Nowak; T. G. O’neill; D. H. Potterveld; D. Ryckbosch; Y. Sakemi; F. Sato; A. Schwind; T. -a. Shibata; K. Suetsugu; E. Thomas; M. Tytgat; G. M. Urciuoli; K. Van De Kerckhove; R. Van De Vyver; S. Yoneyama; H. Zohrabian; L. F. Zhang

2001-01-01T23:59:59.000Z

200

GEOPHYSICS, VOL. 67, NO. 1 (JANUARY-FEBRUARY 2002); P. 3849, 12 FIGS. 10.1190/1.1451322  

E-Print Network [OSTI]

). Although continuity log- ging (or in-seam seismic) is a method commonly used in coal geophysics to determine structures such as clay dikes and faults in coal seams (Buchanan, 1993), this method has not been

Korneev, Valeri A.

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

SURFACE GEOPHYSICAL EXPLORATION OF SX TANK FARM AT THE HANFORD SITE RESULTS OF BACKGROUND CHARACTERIZATION WITH MAGNETICS AND ELECTROMAGNETICS  

SciTech Connect (OSTI)

This report presents the results of the background characterization of the cribs and trenches surrounding the SX tank farm prepared by HydroGEOPHYSICS Inc, Columbia Energy & Environmental Services Inc and Washington River Protection Solutions.

MYERS DA; RUCKER D; LEVIT M; CUBBAGE B; HENDERSON C

2009-09-24T23:59:59.000Z

202

Assessor Training Assessment Techniques  

E-Print Network [OSTI]

NVLAP Assessor Training Assessment Techniques: Communication Skills and Conducting an Assessment listener ·Knowledgeable Assessor Training 2009: Assessment Techniques: Communication Skills & Conducting, truthful, sincere, discrete · Diplomatic · Decisive · Selfreliant Assessor Training 2009: Assessment

203

TEC Working Group Topic Groups Archives Communications Meeting...  

Office of Environmental Management (EM)

TEC Working Group Topic Groups Archives Communications Conference Call Summaries TEC Meeting Summaries - January 1997 TEC Working Group Topic Groups Tribal Conference Call...

204

Pending Jobs by Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pending Jobs by Group Pending Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 14:00:14...

205

Long Term by Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Running Jobs by Group Running Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 13:59:48...

206

Interagency Sustainability Working Group  

Broader source: Energy.gov [DOE]

The Interagency Sustainability Working Group (ISWG) is the coordinating body for sustainable buildings in the federal government.

207

Hydrogen Analysis Group  

SciTech Connect (OSTI)

NREL factsheet that describes the general activites of the Hydrogen Analysis Group within NREL's Hydrogen Technologies and Systems Center.

Not Available

2008-03-01T23:59:59.000Z

208

Crump Geyser: High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Discover new 260F and 300F geothermal reservoirs in Oregon. To demonstrate the application of high precision geophysics for well targeting. Demonstrate a combined testing approach to Flowing Differential Self Potential (FDSP) and electrical tomography resistivity as a guide to exploration and development. Demonstrate utility and benefits of sump-less drilling for a low environmental impact. Create both short and long term employment through exploration, accelerated development timeline and operation.

209

Some Mathematical and Numerical Issues in Geophysical Fluid Dynamics and Climate Dynamics  

E-Print Network [OSTI]

In this article, we address both recent advances and open questions in some mathematical and computational issues in geophysical fluid dynamics (GFD) and climate dynamics. The main focus is on 1) the primitive equations (PEs) models and their related mathematical and computational issues, 2) climate variability, predictability and successive bifurcation, and 3) a new dynamical systems theory and its applications to GFD and climate dynamics.

Jianping Li; Shouhong Wang

2007-11-12T23:59:59.000Z

210

Grouped exposed metal heaters  

DOE Patents [OSTI]

A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)

2010-11-09T23:59:59.000Z

211

Grouped exposed metal heaters  

DOE Patents [OSTI]

A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, ML); Watkins, Ronnie Wade (Cypress, TX)

2012-07-31T23:59:59.000Z

212

Detailed Geophysical Fault Characterization in Yucca Flat, Nevada Test Site, Nevada  

SciTech Connect (OSTI)

Yucca Flat is a topographic and structural basin in the northeastern part of the Nevada Test Site (NTS) in Nye County, Nevada. Between the years 1951 and 1992, 659 underground nuclear tests took place in Yucca Flat; most were conducted in large, vertical excavations that penetrated alluvium and the underlying Cenozoic volcanic rocks. Radioactive and other potential chemical contaminants at the NTS are the subject of a long-term program of investigation and remediation by the U.S. Department of Energy (DOE), National Nuclear Security Administration, Nevada Site Office, under its Environmental Restoration Program. As part of the program, the DOE seeks to assess the extent of contamination and to evaluate the potential risks to humans and the environment from byproducts of weapons testing. To accomplish this objective, the DOE Environmental Restoration Program is constructing and calibrating a ground-water flow model to predict hydrologic flow in Yucca Flat as part of an effort to quantify the subsurface hydrology of the Nevada Test Site. A necessary part of calibrating and evaluating a model of the flow system is an understanding of the location and characteristics of faults that may influence ground-water flow. In addition, knowledge of fault-zone architecture and physical properties is a fundamental component of the containment of the contamination from underground nuclear tests, should such testing ever resume at the Nevada Test Site. The goal of the present investigation is to develop a detailed understanding of the geometry and physical properties of fault zones in Yucca Flat. This study was designed to investigate faults in greater detail and to characterize fault geometry, the presence of fault splays, and the fault-zone width. Integrated geological and geophysical studies have been designed and implemented to work toward this goal. This report describes the geophysical surveys conducted near two drill holes in Yucca Flat, the data analyses performed, and the integrated interpretations developed from the suite of geophysical methodologies utilized in this investigation. Data collection for this activity started in the spring of 2005 and continued into 2006. A suite of electrical geophysical surveys were run in combination with ground magnetic surveys; these surveys resulted in high-resolution subsurface data that portray subsurface fault geometry at the two sites and have identified structures not readily apparent from surface geologic mapping, potential field geophysical data, or surface effects fracture maps.

Theodore H. Asch; Donald Sweetkind; Bethany L. Burton; Erin L. Wallin

2009-02-10T23:59:59.000Z

213

GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 ANDERSON, JENNIFER AYENI, MARY ABATE BESSOMO, ANNA BARRETT, CIAN ADAMS, NICOLE BARTON, MICHAEL  

E-Print Network [OSTI]

GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 ANDERSON, JENNIFER AYENI, MARY ABATE BESSOMO, ANNA ANDERSON FITZSIMONS, DENISEBINCHY, SUSAN CARLEY, JESSE CONWAY, AILBHE BROOKE, HENRY CONLAN, DEIRDRE, CAOIMHE HESKIN, CLODAGH MC GOVERN, MARIE-CLAIREMURRAY, AINE GROGAN, CLARE GERARD, ALLISON MC QUAID, RACHEL

O'Mahony, Donal E.

214

FTN4 OPTIMIZATION TECHNIQUES.  

E-Print Network [OSTI]

3 1st Edition FTN4 OPTIMIZATION TECHNIQUES November 1979O. INTRODUCTION 1. COt1PILER OPTIMIZATIONS 2. SOURCE CODEcode. Most of these optimizations decrease central processor

Authors, Various

2012-01-01T23:59:59.000Z

215

A Second Poincare' Group  

E-Print Network [OSTI]

Solutions of the sourceless Einstein's equation with weak and strong cosmological constants are discussed by using In\\"on\\"u-Wigner contractions of the de Sitter groups and spaces. The more usual case corresponds to a weak cosmological-constant limit, in which the de Sitter groups are contracted to the Poincar\\'e group, and the de Sitter spaces are reduced to the Minkowski space. In the strong cosmological-constant limit, however, the de Sitter groups are contracted to another group which has the same abstract Lie algebra of the Poincar\\'e group, and the de Sitter spaces are reduced to a 4-dimensional cone-space of infinite scalar curvature, but vanishing Riemann and Ricci curvature tensors. In such space, the special conformal transformations act transitively, and the equivalence between inertial frames is that of special relativity.

R. Aldrovandi; J. G. Pereira

1998-09-21T23:59:59.000Z

216

Numerical techniques for lattice gauge theories  

SciTech Connect (OSTI)

The motivation for formulating gauge theories on a lattice is reviewed. Monte Carlo simulation techniques are then discussed for these systems. Finally, the Monte Carlo methods are combined with renormalization group analysis to give strong numerical evidence for confinement of quarks by non-Abelian gauge fields.

Creutz, M.

1981-02-06T23:59:59.000Z

217

Tribal Topic Group Summary  

Broader source: Energy.gov (indexed) [DOE]

Caucus created a mission statement and resolution: - All Tribes with cultural ties to Yucca Mountain should be invited to join TEC - Ongoing funds to support Tribal Topic Group...

218

Trails Working Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in December 2003, includes representatives from local citizen hiking groups, Los Alamos County, Forest Service, Park Service, Los Alamos National Laboratory and the NNSA...

219

Hydrogen Technologies Group  

SciTech Connect (OSTI)

The Hydrogen Technologies Group at the National Renewable Energy Laboratory advances the Hydrogen Technologies and Systems Center's mission by researching a variety of hydrogen technologies.

Not Available

2008-03-01T23:59:59.000Z

220

Contamination Control Techniques  

SciTech Connect (OSTI)

Welcome to a workshop on contamination Control techniques. This work shop is designed for about two hours. Attendee participation is encouraged during the workshop. We will address different topics within contamination control techniques; present processes, products and equipment used here at Hanford and then open the floor to you, the attendees for your input on the topics.

EBY, J.L.

2000-05-16T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Mechanical Engineering & Thermal Group  

E-Print Network [OSTI]

Mechanical Engineering & Thermal Group The Mechanical Engineering (ME) & Thermal Group at LASP has, and ground- based mechanical systems. Instrument Design Building on decades of design experience that has evolved with the complexity of instrument design demands, LASP mechanical engineers develop advanced

Mojzsis, Stephen J.

222

Group Accident Insurance Certificate  

E-Print Network [OSTI]

Group Accident Insurance Certificate Regents of the University of New Mexico #12;#12;Life Insurance Company GROUP ACCIDENT CERTIFICATE THIS CERTIFICATE PROVIDES LIMITED COVERAGE. PLEASE READ YOUR. THIS CERTIFICATE IS ISSUED UNDER AN ACCIDENT ONLY POLICY. IT DOES NOT PAY BENEFITS FOR LOSS CAUSED BY SICKNESS. GA

New Mexico, University of

223

Fermilab | Employee Advisory Group | Focus Group Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000 Rev.Group Members Sabina Aponte,

224

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 16, doi:10.1002/2013GL057728, 2013 Up-gradient eddy fluxes of potential vorticity near the subtropical jet  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 1­6, doi:10.1002/2013GL057728, 2013 Up-gradient eddy fluxes the subtropical jet, Geophys. Res. Lett., 40, doi:10.1002/2013GL057728. 1. Eddies and the General Circulation [2 Geophysical Union. All Rights Reserved. 0094-8276/13/10.1002/2013GL057728 scales are small compared

Birner, Thomas

225

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 59885993, doi:10.1002/2013GL057728, 2013 Up-gradient eddy fluxes of potential vorticity near the subtropical jet  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 5988­5993, doi:10.1002/2013GL057728, 2013 Up-gradient eddy near the subtropical jet, Geophys. Res. Lett., 40, 5988­5993, doi:10.1002/2013GL057728. 1. Eddies@atmos.colostate.edu) ©2013. American Geophysical Union. All Rights Reserved. 0094-8276/13/10.1002/2013GL057728 scales

226

GEOPHYSICAL RESEARCH LETTERS, VOL. 29, NO. 10, PAGES 119-1 119-4 , 10.1029/2001GL013666, 2002 Propagation of auroral hiss at high altitudes  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 29, NO. 10, PAGES 119-1 ­ 119-4 , 10.1029/2001GL013666, 2002 by the American Geophysical Union. Paper number 2001GL013666. 0094-8276/02/2001GL013666$5.00 of 3000­6000 km

Santolik, Ondrej

227

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 14, doi:10.1002/2013GL057751, 2013 Agulhas ring formation as a barotropic instability of the retroflection  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 1­4, doi:10.1002/2013GL057751, 2013 Agulhas ring formation. Res. Lett., 40, doi:10.1002/2013GL057751. 1. Introduction [2] One of the most fascinating phenomena Geophysical Union. All Rights Reserved. 0094-8276/13/10.1002/2013GL057751 [3] The dynamical reason

Weijer, Wilbert

228

GEOPHYSICAL RESEARCH LETTERS, VOL. 29, NO. 23, PAGES 14, 2120, DOI:10.1029/2002GL015273, 2002 Mechanisms controlling the global oceanic distribution  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 29, NO. 23, PAGES 1­4, 2120, DOI:10.1029/2002GL015273, 2002 by the American Geophysical Union. Paper number 2002GL015273. 0094-8276/03/2002GL015273$5.00 2. Methods Water

Hamme, Roberta C.

229

GEOPHYSICS, VOL. 65, NO. 2 (MARCH-APRIL 2000); P. 492501, 13 FIGS. Reconstruction of 1-D conductivity from dual-loop EM data  

E-Print Network [OSTI]

manuscript received August 25, 1999. Formerly Univ. of British Columbia, Geophysical Inversion Facility; currently Baker Atlas, Baker Hughes, 10201 Westheimer, Bldg. 1A, Houston, Texas 77042. E-mail: ian.zhang@bakeratlas.com. Univ. of British Columbia, Geophysical Inversion Facility, Dept. of Earth and Ocean Sciences, Vancouver

Oldenburg, Douglas W.

230

Child Guidance Techniques.  

E-Print Network [OSTI]

TDOC Z TA24S.7 8873 NO.1314 Child Guidance Techniques The Texas MM University System ~ Texas Agricultural Extension Service DMia! C. Pfannstiel . Director College Station B-1314 ... 2 Contents Helpful Guidance T echniques...

Fraiser, Roberta C.

1982-01-01T23:59:59.000Z

231

Electromagnetic geophysics: Notes from the past and the road ahead | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classifiedProject) | Open EnergyEnergy Information geophysics:

232

Modeling the resolution of inexpensive, novel non-seismic geophysical monitoring tools to monitor CO2 injection into coal beds  

SciTech Connect (OSTI)

A sensitivity study of gravity and electromagnetic (EM) techniques, and amplitude vs. angle (AVA) analysis for CO{sub 2} movement in coal beds was based on the SECARB pilot test planned in the Black Warrior basin in Alabama. In the area of interest, coalbed methane is produced mainly from the Black Creek, Mary Lee, and Pratt coal zones at depths between 400 and 700 m and approximately 3 m thick on average. The permeability of coal in the Black Warrior basin decreases exponentially with depth as overburden stress increases. The permeability of the top layer is 100 mD, while the permeability of the deepest layer is around 1 mD. The pilot field test will include injecting a total of 1000 tons of CO{sub 2} into these three coal zones ({approx}300 tons to each zone). The density, sonic and resistivity well-logs from a deep disposal well a couple of miles from the pilot test site were used to create background (pre-injection) models. Our laboratory measurements of seismic velocity and electrical resistivity as a function of CO{sub 2} saturation on coal core samples were used to provide a link between the coalbed CO{sub 2} flow simulation models and the geophysical models. The sensitivity studies showed that while the response to the 300 tons of CO{sub 2} injected into a single layer wouldn't produce measurable surface response for either gravity or EM, the response due to an industrial-size injection would produce measurable surface signal for both techniques. Gravity inversion results illustrated that, provided we can collect high-quality gravity data in the field and we have some a priori information about the depth of the reservoir, we can recover the spatial location of CO{sub 2} plume correctly, although with the smoothing constraint of the inversion, the area was slightly overestimated, resulting in an underestimated value of density change. AVA analysis showed that by inverting seismic and EM data jointly, much better estimates of CO{sub 2} saturation can be obtained, especially in the third injection zone, where seismic AVA data fail to detect the high CO{sub 2} saturation. Analysis of spatial resolution and detectability limits show that gravity and EM measurements could, under certain circumstances, be used as a lower-cost alternative to seismic measurements.

Gasperikova, E.; Hoversten, G.M.

2008-09-01T23:59:59.000Z

233

Department of Geology and Geophysics Frederick A. Sutton Building 115 South 1460 East, Room 383, Salt Lake City, Utah 84112-0102 (801) 581-7162 FAX (801) 581-7065  

E-Print Network [OSTI]

Department of Geology and Geophysics ­ Frederick A. Sutton Building 115 South 1460 East, Room 383/2012 Deed of Gift to The University of Utah Department of Geology and Geophysics Donor's Information, to the Department of Geology and Geophysics of the University of Utah as an unrestricted gift. Filled out and sign

Johnson, Cari

234

Better Group Behaviors in Complex Environments using Global Roadmaps  

E-Print Network [OSTI]

-Ming Lien, and Nancy M. Amato Department of Computer Science, Texas A&M University, College Station, TX techniques for four dis- tinct group behaviors: homing, goal searching, travers- ing narrow areas

Lien, Jyh-Ming

235

application des techniques: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the most important applications developments. As example for exploration geophysics, seismic reflexion is commonly used and a very large community has developed specific devices...

236

Electric Vehicle Research Group  

E-Print Network [OSTI]

.................................................................................9 From diesel to electric: a new era in personnel transport for underground coal minesElectric Vehicle Research Group Annual Report 2012 #12;Table of Contents Executive Summary................................................................................8 C2-25 Electric Vehicle Drivetrain

Liley, David

237

Three-Dimensional Surface Geophysical Exploration of the 200-Series Tanks at the 241-C Tank Farm  

SciTech Connect (OSTI)

A surface geophysical exploration (SGE) survey using direct current electrical resistivity was conducted within the C Tank Farm in the vicinity of the 200-Series tanks at the Hanford Site near Richland, Washington. This survey was the second successful SGE survey to utilize the Geotection(TM)-180 Resistivity Monitoring System which facilitated a much larger survey size and faster data acquisition rate. The primary objective of the C Tank Farm SGE survey was to provide geophysical data and subsurface imaging results to support the Phase 2 RCRA Facility Investigation, as outlined in the Phase 2 RCRA Facility Investigation / Corrective Measures work plan RPP-PLAN-39114.

Crook, N. [HydroGEOPHYSICS, Inc., Tuscon, AZ (United States); McNeill, M. [HydroGEOPHYSICS, Inc., Tuscon, AZ (United States); Dunham, Ralph [Columbia Energy and Environmental Services, Inc. (United States); Glaser, Danney R. [Washington River Protection Solutions, LLC (United States)

2014-02-26T23:59:59.000Z

238

Model building techniques for analysis.  

SciTech Connect (OSTI)

The practice of mechanical engineering for product development has evolved into a complex activity that requires a team of specialists for success. Sandia National Laboratories (SNL) has product engineers, mechanical designers, design engineers, manufacturing engineers, mechanical analysts and experimentalists, qualification engineers, and others that contribute through product realization teams to develop new mechanical hardware. The goal of SNL's Design Group is to change product development by enabling design teams to collaborate within a virtual model-based environment whereby analysis is used to guide design decisions. Computer-aided design (CAD) models using PTC's Pro/ENGINEER software tools are heavily relied upon in the product definition stage of parts and assemblies at SNL. The three-dimensional CAD solid model acts as the design solid model that is filled with all of the detailed design definition needed to manufacture the parts. Analysis is an important part of the product development process. The CAD design solid model (DSM) is the foundation for the creation of the analysis solid model (ASM). Creating an ASM from the DSM currently is a time-consuming effort; the turnaround time for results of a design needs to be decreased to have an impact on the overall product development. This effort can be decreased immensely through simple Pro/ENGINEER modeling techniques that summarize to the method features are created in a part model. This document contains recommended modeling techniques that increase the efficiency of the creation of the ASM from the DSM.

Walther, Howard P.; McDaniel, Karen Lynn; Keener, Donald; Cordova, Theresa Elena; Henry, Ronald C.; Brooks, Sean; Martin, Wilbur D.

2009-09-01T23:59:59.000Z

239

Terracentric Nuclear Fission Reactor: Background, Basis, Feasibility, Structure, Evidence, and Geophysical Implications  

E-Print Network [OSTI]

The background, basis, feasibility, structure, evidence, and geophysical implications of a naturally occurring Terracentric nuclear fission georeactor are reviewed. For a nuclear fission reactor to exist at the center of the Earth, all of the following conditions must be met: (1) There must originally have been a substantial quantity of uranium within Earth's core; (2) There must be a natural mechanism for concentrating the uranium; (3) The isotopic composition of the uranium at the onset of fission must be appropriate to sustain a nuclear fission chain reaction; (4) The reactor must be able to breed a sufficient quantity of fissile nuclides to permit operation over the lifetime of Earth to the present; (5) There must be a natural mechanism for the removal of fission products; (6) There must be a natural mechanism for removing heat from the reactor; (7) There must be a natural mechanism to regulate reactor power level, and; (8) The location of the reactor or must be such as to provide containment and prevent meltdown. Herndon's georeactor alone is shown to meet those conditions. Georeactor existence evidence based upon helium measurements and upon antineutrino measurements is described. Geophysical implications discussed include georeactor origin of the geomagnetic field, geomagnetic reversals from intense solar outbursts and severe Earth trauma, as well as georeactor heat contributions to global dynamics.

J. Marvin Herndon

2013-12-31T23:59:59.000Z

240

Environmental geophysics at Kings Creek Disposal Site and 30th Street Landfill, Aberdeen Proving Ground, Maryland  

SciTech Connect (OSTI)

Geophysical studies on the Bush River Peninsula in the Edgewood Area of Aberdeen Proving Ground, Maryland, delineate landfill areas and provide diagnostic signatures of the hydrogeologic framework and possible contaminant pathways. These studies indicate that, during the Pleistocene Epoch, alternating stands of high and low seal levels resulted in a complex pattern of shallow channel-fill deposits in the Kings Creek area. Ground-penetrating radar studies reveal a paleochannel greater than 50 ft deep, with a thalweg trending offshore in a southwest direction into Kings Creek. Onshore, the ground-penetrating radar data indicate a 35-ft-deep branch to the main channel, trending to the north-northwest directly beneath the 30th Street Landfill. Other branches are suspected to meet the offshore paleochannel in the wetlands south and east of the 30th Street Landfill. This paleochannel depositional system is environmentally significant because it may control the shallow groundwater flow regime beneath the site. Electromagnetic surveys have delineated the pre-fill lowland area currently occupied by the 30th Street Landfill. Magnetic and conductive anomalies outline surficial and buried debris throughout the study area. On the basis of geophysical data, large-scale dumping has not occurred north of the Kings Creek Disposal Site or east of the 30th Street Landfill.

Davies, B.E.; Miller, S.F.; McGinnis, L.D.; Daudt, C.R.; Thompson, M.D.; Stefanov, J.E.; Benson, M.A.; Padar, C.A.

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Finite group symmetry breaking  

E-Print Network [OSTI]

Finite group symmetry is commonplace in Physics, in particular through crystallographic groups occurring in condensed matter physics -- but also through the inversions (C,P,T and their combinations) occurring in high energy physics and field theory. The breaking of finite groups symmetry has thus been thoroughly studied, and general approaches exist to investigate it. In Landau theory, the state of a system is described by a finite dimensional variable (the {\\it order parameter}), and physical states correspond to minima of a potential, invariant under a group. In this article we describe the basics of symmetry breaking analysis for systems described by a symmetric polynomial; in particular we discuss generic symmetry breakings, i.e. those determined by the symmetry properties themselves and independent on the details of the polynomial describing a concrete system. We also discuss how the plethora of invariant polynomials can be to some extent reduced by means of changes of coordinates, i.e. how one can reduce to consider certain types of polynomials with no loss of generality. Finally, we will give some indications on extension of this theory, i.e. on how one deals with symmetry breakings for more general groups and/or more general physical systems.

G. Gaeta

2005-10-02T23:59:59.000Z

242

The HERMES RICH group  

E-Print Network [OSTI]

, homogeneous and hydrophobic aerogel. A lightweight mirror was constructed using a newly perfected technique to make resin-coated carbon-fiber surfaces of optical quality. The photon detector consists of 1934 photomultiplier tubes (PMT) for each detector half, held in a soft steel matrix to provide

N. Akopov; E. C. Aschenauer; K. Bailey; S. Bernreuther; N. Bianchi; G. P. Capitani; P. Carter; E. Cisbani; R. De Leo; E. De Sanctis; V. Djordjadze; S. Frullani; F. Garibaldi; J. -o. Hansen; B. Hommez; M. Iodice; H. E. Jackson; P. Jung; R. Kaiser; J. Kanesaka; R. Kowalczyk; L. Lagamba; A. Maas; V. Muccifora; K. Negodaeva; W. -d. Nowak; T. G. O’neill; D. H. Potterveld; D. Ryckbosch; Y. Sakemi; F. Sato; A. Schwind; T. -a. Shibata; K. Suetsugu; E. Thomas; M. Tytgat; G. M. Urciuoli; K. Van De Kerckhove; R. Van De Vyver; S. Yoneyama; H. Zohrabian; L. F. Zhang

2001-01-01T23:59:59.000Z

243

Illinois Wind Workers Group  

SciTech Connect (OSTI)

The Illinois Wind Working Group (IWWG) was founded in 2006 with about 15 members. It has grown to over 200 members today representing all aspects of the wind industry across the State of Illinois. In 2008, the IWWG developed a strategic plan to give direction to the group and its activities. The strategic plan identifies ways to address critical market barriers to the further penetration of wind. The key to addressing these market barriers is public education and outreach. Since Illinois has a restructured electricity market, utilities no longer have a strong control over the addition of new capacity within the state. Instead, market acceptance depends on willing landowners to lease land and willing county officials to site wind farms. Many times these groups are uninformed about the benefits of wind energy and unfamiliar with the process. Therefore, many of the project objectives focus on conferences, forum, databases and research that will allow these stakeholders to make well-educated decisions.

David G. Loomis

2012-05-28T23:59:59.000Z

244

Upgraded Coal Interest Group  

SciTech Connect (OSTI)

The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

Evan Hughes

2009-01-08T23:59:59.000Z

245

Bell, group and tangle  

SciTech Connect (OSTI)

The 'Bell' of the title refers to bipartite Bell states, and their extensions to, for example, tripartite systems. The 'Group' of the title is the Braid Group in its various representations; while 'Tangle' refers to the property of entanglement which is present in both of these scenarios. The objective of this note is to explore the relation between Quantum Entanglement and Topological Links, and to show that the use of the language of entanglement in both cases is more than one of linguistic analogy.

Solomon, A. I., E-mail: a.i.solomon@open.ac.u [Open University, Department of Physics (United Kingdom)

2010-03-15T23:59:59.000Z

246

Galaxy Redshifts: Improved Techniques  

E-Print Network [OSTI]

This paper analyses the effects of random noise in determining errors and confidence levels for galaxy redshifts obtained by cross-correlation techniques. The main finding is that confidence levels have previously been overestimated, and errors inaccurately calculated in certain applications. New formul\\ae\\ are presented.

A. F. Heavens

1993-05-26T23:59:59.000Z

247

Infrared Inspection Techniques  

E-Print Network [OSTI]

. By means of a TV monitor tube, a thermal picture is formed where lighter parts represent areas with higher temperatures. Absolute temperature levels of objects can be measured with this technique from -300C to +20000C. A conventional camera is attached...

Hill, A. B.; Bevers, D. V.

1979-01-01T23:59:59.000Z

248

FACILITIES INSTRUCTIONS, STANDARDS, & TECHNIQUES  

E-Print Network [OSTI]

to the repair of hydraulic turbine runners and large pump impellers. Reclamation operates and maintains a wideFACILITIES INSTRUCTIONS, STANDARDS, & TECHNIQUES VOLUME 2-5 TURBINE REPAIR Internet Version variety of reaction and impulse turbines as well as axial flow, mixed flow, radial flow pumps and pump

Laughlin, Robert B.

249

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, The Effects of Hard Spectra Solar Proton Events on1  

E-Print Network [OSTI]

to deposit their energy28 in the mesosphere and stratosphere. Therefore Solar Proton Events provide a directJOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, The Effects of Hard Spectra Solar Helsinki, Finland. (annika.seppala@fmi.fi) M. A. Clilverd, Physical Sciences Division (NERC), British

Otago, University of

250

March 7, 2003 15:37 Geophysical Journal International gji1906 Geophys. J. Int. (2003) 153, 277286  

E-Print Network [OSTI]

­286 Effects of near-surface conductance on global satellite induction responses Mark E. Everett,1 Steven Constable2 and Catherine G. Constable2 1Department of Geology and Geophysics, Texas A&M University, College 1984; Oraevsky et al. 1993; Olsen 1999; Constable & Constable 2000; Tarits 2000; Tarits & Grammatica

Constable, Steve

251

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Climate Impacts of Intermittent Upper Ocean1  

E-Print Network [OSTI]

heat content locally. Recent studies5 suggest that TC-induced ocean mixing can have global climate climate impacts by contributing to oceanic poleward heat transport [Emanuel,32 2001; Sriver and HuberJOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Climate Impacts of Intermittent

252

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Climate Response to a Geoengineered Brightening of1  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Climate Response to a Geoengineered: CLIM. RESPONSE TO GEOENGINEERED CLOUD BRIGHTENING As a means of mitigating anthropogenic climate change to this geoengineering scheme is currently poorly under-6 stood. We simulate cloud seeding in a coupled mixed-layer ocean

253

GEOPHYSICAL RESEARCH LETTERS, VOL. 0, NO. 0, PAGES 0-0, M 0, 2001 On the Pacific Ocean regime shift  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 0, NO. 0, PAGES 0-0, M 0, 2001 On the Pacific Ocean regime shift variability of Pacific Ocean upper ocean heat content is examined for the 1948-1998 period using gridded-wide phenomenon affecting the thermal structure from 60 S to 70 N. EOF analysis of the Pacific Ocean heat content

254

Revised for Journal of Geophysical Research1 Effects of the Diurnal Cycle in Solar Radiation on the2  

E-Print Network [OSTI]

radiation diurnal cycle on intraseasonal mixed layer variability15 in the tropical Indian Ocean during1 Revised for Journal of Geophysical Research1 Effects of the Diurnal Cycle in Solar Radiation on the2 Tropical Indian Ocean Mixed Layer Variability during3 Wintertime Madden-Julian Oscillations4

255

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Solar forced Dansgaard-Oeschger events and their  

E-Print Network [OSTI]

to two century-scale solar cycles with periods close to 1470/7 (=210) and 1470/17 (87) years [Braun et alGEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Solar forced Dansgaard-Oeschger events and their phase relation with solar proxies H. Braun Heidelberg Academy of Sciences and Humanities, University

Chialvo, Dante R.

256

Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes  

E-Print Network [OSTI]

Long-period fading in atmospherics during severe meteorological activity and associated solar activity with the solar geophysical phenomena was studied. The results are indicative of an interesting sequence of solar- terrestrial events. A tentative conclusion is reached, suggesting an origin

Boyer, Edmond

257

1.5 References Batzle, M. and Wang, Z., 1992, Seismic properties of pore fluids: Geophysics, Vol.  

E-Print Network [OSTI]

Prop- erty Effects and Seismic Gas Detection (Fluid Project): HARC & CSM, 163 pp. Biot, M.A., 195667 1.5 References Batzle, M. and Wang, Z., 1992, Seismic properties of pore fluids: Geophysics, Vol. 57, No. 11, p. 1396-1408. Batzle, M.L., Han, D., Wang, W., Wu, X., Ge, H., and Zhao, H., 1997, Fluid

258

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Climate Impacts of Cirrus Ice Nucleation1  

E-Print Network [OSTI]

in the climate system. Ice clouds reflect solar radiation23 back to space, cooling the planet. However, cold ice finely balanced between warming and cooling, with warming thought to be slightly larger.27 Changes to iceJOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Climate Impacts of Cirrus Ice

Gettelman, Andrew

259

Wind Bias from Sub-optimal Estimation Due to Geophysical Modeling Error Paul E. Johnson and David G . Long  

E-Print Network [OSTI]

Wind Bias from Sub-optimal Estimation Due to Geophysical Modeling Error -Wind I Paul E. Johnson (which relates the wind to the normalized radar cross section, NRCS, of the ocean surface) is uncertainty in the NRCS for given wind conditions. When the estimated variability is in- cluded in the maximum likelihood

Long, David G.

260

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, In-flight degradation correction of SCIAMACHY UV  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, In-flight degradation correction of SCIAMACHY UV reflectances and Absorbing Aerosol Index L. G. Tilstra, 1 M. de Graaf, 1 I. Aben, 2 and P. D R A F T February 1, 2012, 12:28pm D R A F T #12;X - 2TILSTRA ET AL.: DEGRADATION CORRECTION

Graaf, Martin de

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Environmental geophysics deals with issues ranging from local-scale fluid-rock changes to large-scale climatic  

E-Print Network [OSTI]

Environmental geophysics deals with issues ranging from local-scale fluid-rock changes to large and quarries, military bases, oil and gas fields, petroleum refineries, etc. Many derelict sites such as crankcase oils), mine spoils, and other inorganic pollutants. Accidental spills or poor disposal practice

Meju, Max

262

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 3, PAGES 377-380, FEBRUARY 1, 2000 Anomalous scaling of mesoscale tropospheric humidity  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 3, PAGES 377-380, FEBRUARY 1, 2000 Anomalous scaling will take up to 20 s to respond. In this paper we report the first sci- entific results using the full 20-Hz on the idea of chaotic isentropic lateral mixing [e.g., Emanuel and Pierrehumbert, 1996]. Our present study

Cho, John Y. N.

263

GEOPHYSICS, VOL. 64, NO. 1 (JANUARY-FEBRUARY 1999); P. 3347, 17 FIGS. Simultaneous reconstruction of 1-D susceptibility  

E-Print Network [OSTI]

; revised manuscript received June 16, 1998. Formerly UBC-Geophysical Inversion Facility, 2219 Main Mall, Vancouver, BC, Canada V6T 1Z4; currently Western Atlas Logging Services, 10201 Westheimer, Houston, TX 77042 Facility, 2219 Main Mall, Vancouver, BC, Canada V6T 1Z4; E-mail: doug@geop.ubc.ca. c 1999 Society

Oldenburg, Douglas W.

264

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 22452248, AUGUST 1, 2000 Subsurface nuclear tests monitoring through the  

E-Print Network [OSTI]

nuclear tests down to 1 kiloton (kt) TNT equivalent anywhere on the planet. The IMS is based upon four waves will help check for underground, under­water and atmospheric nuclear tests. The fourth networkGEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 2245­2248, AUGUST 1, 2000 Sub­surface nuclear

Hourdin, Chez Frédéric

265

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1002/, Hydro-acoustic and tsunami waves generated by the1  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1002/, Hydro-acoustic and tsunami waves TSUNAMI Abstract. Detection of low-frequency hydro-acoustic waves as precur-4 sor components model gave us the opportunity to study13 the hydro-acoustic wave propagation in a large-scale domain

Kirby, James T.

266

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Global energy conversion rate from geostrophic flows into  

E-Print Network [OSTI]

, and to bottom velocity obtained from a global ocean model. The total energy flux into internal lee wavesGEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Global energy conversion rate from distribution of the energy flux is largest in the Southern Ocean which accounts for half of the total energy

Ferrari, Raffaele

267

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Contribution of Icelandic ice caps to sea level rise:1  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Contribution of Icelandic ice caps - 2 BJ¨ORNSSON ET AL.: MASS LOSS FROM ICELANDIC ICE CAPS In total, Icelandic ice caps contain 3,600 km3 of ice, which if melted would3 raise sea level by 1 cm. Here, we present an overview of mass

Berthier, Etienne

268

Nonlinear Processes in Geophysics (2005) 12: 311320 SRef-ID: 1607-7946/npg/2005-12-311  

E-Print Network [OSTI]

Processes in Geophysics Forced versus coupled dynamics in Earth system modelling and prediction B. Knopf1, H, a crucial element of Earth System modelling. Since the cur- rently preferred strategy for simulating. Such a simplifying tech- nique is often employed in Earth System models in order to save computing resources

Paris-Sud XI, Université de

269

Mechanical action and Geophysical reaction: Equipment Oil sand Interactions (Originally presented at CAMI, September 8 10, 2003, Calgary, Alberta)  

E-Print Network [OSTI]

. Vibrations from on-board equipment, as was found with shovels to a lesser extent, such as pumps, motors and other moving sources, dirties the ground response signal with noise. To facilitate a better correlation geophysical computer applications are manipulated and enhanced to evaluate the extent of this noise problem

Joseph, Tim Grain

270

Magnetism Theory Group / POSTECH Magnetism Theory Group / POSTECH  

E-Print Network [OSTI]

Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH J.H . Park et al. #12;'s of FeinCsm e tal The chargeandorbitalordering geom etryin YB a C o 2 O 5 S. K. Kwon etal .Magnetism Theory

Min, Byung Il

271

Query Optimization Techniques Class Hierarchies  

E-Print Network [OSTI]

Query Optimization Techniques Exploiting Class Hierarchies Sophie Cluet 1 Guido Moerkotte 2 1 INRIA Since the introduction of object base management systems (OBMS), many query optimization techniques tailored for object query languages have been proposed. They adapt known optimization techniques

Mannheim, Universität

272

Geophysical monitoring and reactive transport modeling of ureolytically-driven calcium carbonate precipitation  

SciTech Connect (OSTI)

Ureolytically-driven calcium carbonate precipitation is the basis for a promising in-situ remediation method for sequestration of divalent radionuclide and trace metal ions. It has also been proposed for use in geotechnical engineering for soil strengthening applications. Monitoring the occurrence, spatial distribution, and temporal evolution of calcium carbonate precipitation in the subsurface is critical for evaluating the performance of this technology and for developing the predictive models needed for engineering application. In this study, we conducted laboratory column experiments using natural sediment and groundwater to evaluate the utility of geophysical (complex resistivity and seismic) sensing methods, dynamic synchrotron x-ray computed tomography (micro-CT), and reactive transport modeling for tracking ureolytically-driven calcium carbonate precipitation processes under site relevant conditions. Reactive transport modeling with TOUGHREACT successfully simulated the changes of the major chemical components during urea hydrolysis. Even at the relatively low level of urea hydrolysis observed in the experiments, the simulations predicted an enhanced calcium carbonate precipitation rate that was 3-4 times greater than the baseline level. Reactive transport modeling results, geophysical monitoring data and micro-CT imaging correlated well with reaction processes validated by geochemical data. In particular, increases in ionic strength of the pore fluid during urea hydrolysis predicted by geochemical modeling were successfully captured by electrical conductivity measurements and confirmed by geochemical data. The low level of urea hydrolysis and calcium carbonate precipitation suggested by the model and geochemical data was corroborated by minor changes in seismic P-wave velocity measurements and micro-CT imaging; the latter provided direct evidence of sparsely distributed calcium carbonate precipitation. Ion exchange processes promoted through NH{sub 4}{sup +} production during urea hydrolysis were incorporated in the model and captured critical changes in the major metal species. The electrical phase increases were potentially due to ion exchange processes that modified charge structure at mineral/water interfaces. Our study revealed the potential of geophysical monitoring for geochemical changes during urea hydrolysis and the advantages of combining multiple approaches to understand complex biogeochemical processes in the subsurface.

Wu, Y.; Ajo-Franklin, J.B.; Spycher, N.; Hubbard, S.S.; Zhang, G.; Williams, K.H.; Taylor, J.; Fujita, Y.; Smith, R.

2011-07-15T23:59:59.000Z

273

Resin infiltration transfer technique  

DOE Patents [OSTI]

A process has been developed for fabricating composite structures using either reaction forming or polymer infiltration and pyrolysis techniques to densify the composite matrix. The matrix and reinforcement materials of choice can include, but are not limited to, silicon carbide (SiC) and zirconium carbide (ZrC). The novel process can be used to fabricate complex, net-shape or near-net shape, high-quality ceramic composites with a crack-free matrix.

Miller, David V. (Pittsburgh, PA); Baranwal, Rita (Glenshaw, PA)

2009-12-08T23:59:59.000Z

274

GEOPHYSICS AND SITE CHARACTERIZATION AT THE HANFORD SITE THE SUCCESSFUL USE OF ELECTRICAL RESISTIVITY TO POSITION BOREHOLES TO DEFINE DEEP VADOSE ZONE CONTAMINATION - 11509  

SciTech Connect (OSTI)

Historic boreholes confirmed the presence of nitrate and radionuclide contaminants at various intervals throughout a more than 60 m (200 ft) thick vadose zone, and a 2010 electrical resistivity survey mapped the known contamination and indicated areas of similar contaminants, both laterally and at depth; therefore, electrical resistivity mapping can be used to more accurately locate characterization boreholes. At the Hanford Nuclear Reservation in eastern Washington, production of uranium and plutonium resulted in the planned release of large quantities of contaminated wastewater to unlined excavations (cribs). From 1952 until 1960, the 216-U-8 Crib received approximately 379,000,000 L (100,000,000 gal) of wastewater containing 25,500 kg (56,218 lb) uranium; 1,029,000 kg (1,013 tons) of nitrate; 2.7 Ci of technetium-99; and other fission products including strontium-90 and cesium-137. The 216-U-8 Crib reportedly holds the largest inventory of waste uranium of any crib on the Hanford Site. Electrical resistivity is a geophysical technique capable of identifying contrasting physical properties; specifically, electrically conductive material, relative to resistive native soil, can be mapped in the subsurface. At the 216-U-8 Crib, high nitrate concentrations (from the release of nitric acid [HNO{sub 3}] and associated uranium and other fission products) were detected in 1994 and 2004 boreholes at various depths, such as at the base of the Crib at 9 m (30 ft) below ground surface (bgs) and sporadically to depths in excess of 60 m (200 ft) bgs. These contaminant concentrations were directly correlative with the presence of observed low electrical resistivity responses delineated during the summer 2010 geophysical survey. Based on this correlation and the recently completed mapping of the electrically conductive material, additional boreholes are planned for early 2011 to identify nitrate and radionuclide contamination: (a) throughout the entire vertical length of the vadose zone (i.e., 79 m [260 ft] bgs) within the footprint of the Crib, and (b) 15 to 30 m (50 to 100 ft) east of the Crib footprint, where contaminants are inferred to have migrated through relatively permeable soils. Confirmation of the presence of contamination in historic boreholes correlates well with mapping from the 2010 survey, and serves as a basis to site future characterization boreholes that will likely intersect contamination both laterally and at depth.

GANDER MJ; LEARY KD; LEVITT MT; MILLER CW

2011-01-14T23:59:59.000Z

275

TEC Working Group Topic Groups Rail Key Documents Radiation Monitoring...  

Broader source: Energy.gov (indexed) [DOE]

Radiation Monitoring Subgroup TEC Working Group Topic Groups Rail Key Documents Radiation Monitoring Subgroup Radiation Monitoring Subgroup Draft Work Plan - February 4, 2008 More...

276

TEC Working Group Topic Groups Rail Conference Call Summaries...  

Broader source: Energy.gov (indexed) [DOE]

Radiation Monitoring Subgroup TEC Working Group Topic Groups Rail Conference Call Summaries Radiation Monitoring Subgroup Radiation Monitoring Subgroup October 11, 2007 More...

277

Image compression technique  

DOE Patents [OSTI]

An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

Fu, C.Y.; Petrich, L.I.

1997-03-25T23:59:59.000Z

278

KKG Group Paraffin Removal  

SciTech Connect (OSTI)

The Rocky Mountain Oilfield Testing Center (RMOTC) has recently completed a test of a paraffin removal system developed by the KKG Group utilizing the technology of two Russian scientists, Gennady Katzyn and Boris Koggi. The system consisting of chemical ''sticks'' that generate heat in-situ to melt the paraffin deposits in oilfield tubing. The melted paraffin is then brought to the surface utilizing the naturally flowing energy of the well.

Schulte, Ralph

2001-12-01T23:59:59.000Z

279

GEOPHYSICAL INVESTIGATIONS OF THE ARCHAEOLOGICAL RESOURCES AT THE POWELL STAGE STATION  

SciTech Connect (OSTI)

Within the boundaries of the Idaho National Laboratory, an ongoing archaeological investigation of a late 19th century stage station was expanded with the use of Electro-Magnetic and Magnetic geophysical surveying. The station known as the Powell Stage Station was a primary transportation hub on the Snake River Plain, bridging the gap between railroad supply depots in Blackfoot, Idaho and booming mining camps throughout Central Idaho. Initial investigations have shown a strong magnetic signature from a buried road and previously unknown features that were not detected by visual surface surveys. Data gained from this project aids in federally directed cultural resource and land management and use requirements and has contributed additional information for archeological interpretation and cultural resource preservation.

Hollie K. Gilbert; Julie B. Braun; Brenda R. Pace; Gail Heath; Clark Scott

2009-04-01T23:59:59.000Z

280

Mechanism of destruction of transport barriers in geophysical jets with Rossby waves  

E-Print Network [OSTI]

The mechanism of destruction of a central transport barrier in a dynamical model of a geophysical zonal jet current in the ocean or the atmosphere with two propagating Rossby waves is studied. We develop a method for computing a central invariant curve which is an indicator of existence of the barrier. Breakdown of this curve under a variation of the Rossby wave amplitudes and onset of chaotic cross-jet transport happen due to specific resonances producing stochastic layers in the central jet. The main result is that there are resonances breaking the transport barrier at unexpectedly small values of the amplitudes that may have serious impact on mixing and transport in the ocean and the atmosphere. The effect can be found in laboratory experiments with azimuthal jets and Rossby waves in rotating tanks under specific values of the wave numbers that are predicted in the theory.

Uleysky, M Yu; Prants, S V; 10.1103/PhysRevE.81.017202

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Applied Science/Techniques  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone by E-mailRadioimmunotherapy ofevolvedApplied Science/Techniques

282

Personality and group interaction  

E-Print Network [OSTI]

that "prize Chips will be awarded equally to each person in the group based on the total number of blocks still standing in the tower at the end of the 15 seconds". b) In the contrient condition, subjects were told that "Prize Chips will be awarded only... to the individual with the most blocks still standing in the tower at the end of the 15 seconds. If there are any ties in terms of the number blocks on the tower and there is no clear winner, then no prize chips will be distributed". 6. Only one tower may...

Hair, Elizabeth Catherine

1996-01-01T23:59:59.000Z

283

ALS Communications Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience4AJ01) (See95TI07)Operations During theALSSafetyCommunications Group

284

JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES, VOL. 118, 34863494, doi:10.1002/jgrd.50339, 2013 The signature of the stratospheric Brewer-Dobson circulation  

E-Print Network [OSTI]

The signature of the stratospheric Brewer-Dobson circulation in tropospheric clouds Ying Li1 and David W. J Collins, Colorado 80523, USA. (yingli@atmos.colostate.edu) ©2013. American Geophysical Union. All Rights

285

Rules and Regulations Governing Geophysical, Seismic or Other Type Exploration on State-Owned Lands Other Than State-Owned Marine Waters (Mississippi)  

Broader source: Energy.gov [DOE]

The Rules and Regulations Governing Geophysical, seismic or Other Type Exploration on State-Owned Lands Other than State-Owned Marine Waters is applicable to the Natural Gas Sector and the Coal...

286

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 94, NO. D13, PAGES 16,417-16,421,NOVEMBER 20, 1989 Greenhouse Effect of Chlorofluorocarbons and Other Trace Gases  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 94, NO. D13, PAGES 16,417-16,421,NOVEMBER 20, 1989 Greenhouse Effect of Chlorofluorocarbons and Other Trace Gases JAMESHANSEN,ANDREW LACIS,AND MICHAEL PRATHER NASA

Fridlind, Ann

287

Geologic, geophysical, and geochemical aspects of site-specific studies of the geopressured-geothermal energy resource of southern Louisiana. Final report  

SciTech Connect (OSTI)

The report consists of four sections dealing with progress in evaluating geologic, geochemical, and geophysical aspects of geopressured-geothermal energy resources in Louisiana. Separate abstracts have been prepared for the individual sections. (ACR)

Pilger, R.H. Jr. (ed.)

1985-01-01T23:59:59.000Z

288

High Temperature Membrane Working Group  

Broader source: Energy.gov [DOE]

This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

289

Digital Technology Group Computer Laboratory  

E-Print Network [OSTI]

Digital Technology Group 1/20 Computer Laboratory Digital Technology Group Computer Laboratory William R Carson Building on the presentation by Francisco Monteiro Matlab #12;Digital Technology Group 2/20 Computer Laboratory Digital Technology Group Computer Laboratory The product: MATLAB® - The Language

Cambridge, University of

290

The HERMES RICH group  

E-Print Network [OSTI]

The construction and use of a dual radiator Ring Imaging ?erenkov (RICH) detector is described. This instrument was developed for the HERMES experiment at DESY which emphasises measurements of semi-inclusive deep-inelastic scattering. It provides particle identification for pions, kaons, and protons in the momentum range from 2 to 15 GeV, which is essential to these studies. The instrument uses two radiators, C4F10, a heavy fluorocarbon gas, and a wall of silica aerogel tiles. The use of aerogel in a RICH detector has only recently become possible with the development of clear, large, homogeneous and hydrophobic aerogel. A lightweight mirror was constructed using a newly perfected technique to make resin-coated carbon-fiber surfaces of optical quality. The photon detector consists of 1934 photomultiplier tubes (PMT) for each detector half, held in a soft steel matrix to provide

N. Akopov; E. C. Aschenauer; K. Bailey; S. Bernreuther; N. Bianchi; G. P. Capitani; P. Carter; E. Cisbani; R. De Leo; E. De Sanctis; V. Djordjadze; S. Frullani; F. Garibaldi; J. -o. Hansen; B. Hommez; M. Iodice; H. E. Jackson; P. Jung; R. Kaiser; J. Kanesaka; R. Kowalczyk; L. Lagamba; A. Maas; V. Muccifora; K. Negodaeva; W. -d. Nowak; T. G. O’neill; D. H. Potterveld; D. Ryckbosch; Y. Sakemi; F. Sato; A. Schwind; T. -a. Shibata; K. Suetsugu; E. Thomas; M. Tytgat; G. M. Urciuoli; K. Van De Kerckhove; R. Van De Vyver; S. Yoneyama; H. Zohrabian; L. F. Zhang

2001-01-01T23:59:59.000Z

291

Atmospheric Data, Images, and Animations from Lidar Instruments used by the University of Wisconsin Lidar Group  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Space Science and Engineering Center is a research and development center affiliated with the University of Wisconsin-Madison’s Graduate School. Its primary focus is on geophysical research and technology to enhance understanding of the atmosphere of Earth, the other planets in the Solar System, and the cosmos. SSEC develops new observing tools for spacecraft, aircraft, and ground-based platforms, and models atmospheric phenomena. The Center receives, manages and distributes huge amounts of geophysical data and develops software to visualize and manipulate these data for use by researchers and operational meteorologists all over the world.[Taken from About SSEC at http://www.ssec.wisc.edu/overview/] A huge collection of data products, images, and animations comes to the SSEC from the University of Wisconsin Lidar Group. Contents of this collection include: • An archive of thousands of Lidar images acquired before 2004 • Arctic HSRL, MMCR, PAERI, MWR, Radiosonde, and CRAS forecast data Data after May 1, 2004 • MPEG animations and Lidar Multiple Scattering Models

292

Working Group Report: Sensors  

SciTech Connect (OSTI)

Sensors play a key role in detecting both charged particles and photons for all three frontiers in Particle Physics. The signals from an individual sensor that can be used include ionization deposited, phonons created, or light emitted from excitations of the material. The individual sensors are then typically arrayed for detection of individual particles or groups of particles. Mounting of new, ever higher performance experiments, often depend on advances in sensors in a range of performance characteristics. These performance metrics can include position resolution for passing particles, time resolution on particles impacting the sensor, and overall rate capabilities. In addition the feasible detector area and cost frequently provides a limit to what can be built and therefore is often another area where improvements are important. Finally, radiation tolerance is becoming a requirement in a broad array of devices. We present a status report on a broad category of sensors, including challenges for the future and work in progress to solve those challenges.

Artuso, M.; et al.,

2013-10-18T23:59:59.000Z

293

Institute of Geophysics and Planetary Physics (IGPP), Lawrence Livermore National Laboratory (LLNL): Quinquennial report, November 14-15, 1996  

SciTech Connect (OSTI)

This Quinquennial Review Report of the Lawrence Livermore National Laboratory (LLNL) branch of the Institute for Geophysics and Planetary Physics (IGPP) provides an overview of IGPP-LLNL, its mission, and research highlights of current scientific activities. This report also presents an overview of the University Collaborative Research Program (UCRP), a summary of the UCRP Fiscal Year 1997 proposal process and the project selection list, a funding summary for 1993-1996, seminars presented, and scientific publications. 2 figs., 3 tabs.

Tweed, J.

1996-10-01T23:59:59.000Z

294

An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 4_Geophysical Survey Report  

SciTech Connect (OSTI)

CR Environmental, Inc. (CR) was contracted by GZA GeoEnvironmental, Inc. (GZA) to perform hydrographic and geophysical surveys of an approximately 3.35 square mile area off the eastern shore of Hull, Massachusetts. Survey components included: • Single-beam bathymetry; • 100-kHz and 500-kHz side scan sonar; • Magnetometry; and • Low to mid-frequency sub-bottom profiling.

Adams, Christopher

2013-06-30T23:59:59.000Z

295

Fast quantum algorithms for approximating some irreducible representations of groups  

E-Print Network [OSTI]

We consider the quantum complexity of estimating matrix elements of unitary irreducible representations of groups. For several finite groups including the symmetric group, quantum Fourier transforms yield efficient solutions to this problem. Furthermore, quantum Schur transforms yield efficient solutions for certain irreducible representations of the unitary group. Beyond this, we obtain poly(n)-time quantum algorithms for approximating matrix elements from all the irreducible representations of the alternating group A_n, and all the irreducible representations of polynomial highest weight of U(n), SU(n), and SO(n). These quantum algorithms offer exponential speedup in worst case complexity over the fastest known classical algorithms. On the other hand, we show that average case instances are classically easy, and that the techniques analyzed here do not offer a speedup over classical computation for the estimation of group characters.

Stephen P. Jordan

2009-04-21T23:59:59.000Z

296

Technique for fast and efficient hierarchical clustering  

DOE Patents [OSTI]

A fast and efficient technique for hierarchical clustering of samples in a dataset includes compressing the dataset to reduce a number of variables within each of the samples of the dataset. A nearest neighbor matrix is generated to identify nearest neighbor pairs between the samples based on differences between the variables of the samples. The samples are arranged into a hierarchy that groups the samples based on the nearest neighbor matrix. The hierarchy is rendered to a display to graphically illustrate similarities or differences between the samples.

Stork, Christopher

2013-10-08T23:59:59.000Z

297

MAGNIFICATION BY GALAXY GROUP DARK MATTER HALOS  

SciTech Connect (OSTI)

We report on the detection of gravitational lensing magnification by a population of galaxy groups, at a significance level of 4.9{sigma}. Using X-ray-selected groups in the COSMOS 1.64 deg{sup 2} field, and high-redshift Lyman break galaxies as sources, we measure a lensing-induced angular cross-correlation between the samples. After satisfying consistency checks that demonstrate we have indeed detected a magnification signal, and are not suffering from contamination by physical overlap of samples, we proceed to implement an optimally weighted cross-correlation function to further boost the signal to noise of the measurement. Interpreting this optimally weighted measurement allows us to study properties of the lensing groups. We model the full distribution of group masses using a composite-halo approach, considering both the singular isothermal sphere and Navarro-Frenk-White profiles, and find our best-fit values to be consistent with those recovered using the weak-lensing shear technique. We argue that future weak-lensing studies will need to incorporate magnification along with shear, both to reduce residual systematics and to make full use of all available source information, in an effort to maximize scientific yield of the observations.

Ford, Jes; Hildebrandt, Hendrik; Van Waerbeke, Ludovic [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada); Leauthaud, Alexie; Tanaka, Masayuki [Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582 (Japan); Capak, Peter [NASA Spitzer Science Center, California Institute of Technology, 220-6 Caltech, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Finoguenov, Alexis [Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstrasse 1, D-85748 Garching (Germany); George, Matthew R. [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Rhodes, Jason [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

2012-08-01T23:59:59.000Z

298

Expanded Pending Jobs by Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Expanded Pending Jobs by Group Expanded Pending Jobs by Group Daily Graph: Weekly Graph: Monthly Graph: Yearly Graph: 2 Year Graph: Last edited: 2011-04-05 14:00:25...

299

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 2001 prepared by: Data Management Group Joint Program..............................................................................2 Text Based Data Retrieval System `drs' ..........................................................2 Internet Browser Data Retrieval System (iDRS)..............................................3 Complex Data

Toronto, University of

300

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 1999 prepared by: Data Management Group Joint Program................................................................. 1 INFORMATION PROCESSING ............................................. 2 Text Based Data Retrieval System `drs' ........................ 2 Internet Browser Data Retrieval System (iDRS) ............ 3

Toronto, University of

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Data Management Group Annual Report  

E-Print Network [OSTI]

iv Data Management Group Annual Report 2003 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located ........................................................................................................ 3 Text-based Data Retrieval System `drs

Toronto, University of

302

INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP  

E-Print Network [OSTI]

space exploration infrastructure standards facilitating interoperability through an international with relevant existing international working groups/ organisations. · Preparation and Organization of a WS1 INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP WORKPLAN Update following 3rd ISECG Meeting

303

Fermilab Steering Group Report  

SciTech Connect (OSTI)

The Fermilab Steering Group has developed a plan to keep U.S. accelerator-based particle physics on the pathway to discovery, both at the Terascale with the LHC and the ILC and in the domain of neutrinos and precision physics with a high-intensity accelerator. The plan puts discovering Terascale physics with the LHC and the ILC as Fermilab's highest priority. While supporting ILC development, the plan creates opportunities for exciting science at the intensity frontier. If the ILC remains near the Global Design Effort's technically driven timeline, Fermilab would continue neutrino science with the NOVA experiment, using the NuMI (Neutrinos at the Main Injector) proton plan, scheduled to begin operating in 2011. If ILC construction must wait somewhat longer, Fermilab's plan proposes SNuMI, an upgrade of NuMI to create a more powerful neutrino beam. If the ILC start is postponed significantly, a central feature of the proposed Fermilab plan calls for building an intense proton facility, Project X, consisting of a linear accelerator with the currently planned characteristics of the ILC combined with Fermilab's existing Recycler Ring and the Main Injector accelerator. The major component of Project X is the linac. Cryomodules, radio-frequency distribution, cryogenics and instrumentation for the linac are the same as or similar to those used in the ILC at a scale of about one percent of a full ILC linac. Project X's intense proton beams would open a path to discovery in neutrino science and in precision physics with charged leptons and quarks. World-leading experiments would allow physicists to address key questions of the Quantum Universe: How did the universe come to be? Are there undiscovered principles of nature: new symmetries, new physical laws? Do all the particles and forces become one? What happened to the antimatter? Building Project X's ILC-like linac would offer substantial support for ILC development by accelerating the industrialization of ILC components in the U.S. and creating an engineering opportunity for ILC cost reductions. It offers an early and tangible application for ILC R&D in superconducting technology, attracting participation from accelerator scientists worldwide and driving forward the technology for still higher-energy accelerators of the future, such as a muon collider. To prepare for a future decision, the Fermilab Steering Group recommends that the laboratory seek R&D support for Project X, in order to produce an overall design of Project X and to spur the R&D and industrialization of ILC linac components needed for Project X. Advice from the High Energy Physics Advisory Panel will guide any future decision to upgrade the Fermilab accelerator complex, taking into account developments affecting the ILC schedule and the continuing evaluation of scientific priorities for U.S. particle physics. Fermilab should also work toward increased resources for longer-term future accelerators such as a muon collider, aiming at higher energies than the ILC would provide.

Beier, Eugene; /Pennsylvania U.; Butler, Joel; /Fermilab; Dawson, Sally; /Brookhaven; Edwards, Helen; /Fermilab; Himel, Thomas; /SLAC; Holmes, Stephen; /Fermilab; Kim, Young-Kee; /Fermilab /Chicago U.; Lankford, Andrew; /UC, Irvine; McGinnis, David; /Fermilab; Nagaitsev, Sergei; /Fermilab; Raubenheimer, Tor; /SLAC /Fermilab

2007-01-01T23:59:59.000Z

304

Accurately Estimating the State of a Geophysical System with Sparse Observations: Predicting the Weather  

E-Print Network [OSTI]

Utilizing the information in observations of a complex system to make accurate predictions through a quantitative model when observations are completed at time $T$, requires an accurate estimate of the full state of the model at time $T$. When the number of measurements $L$ at each observation time within the observation window is larger than a sufficient minimum value $L_s$, the impediments in the estimation procedure are removed. As the number of available observations is typically such that $L \\ll L_s$, additional information from the observations must be presented to the model. We show how, using the time delays of the measurements at each observation time, one can augment the information transferred from the data to the model, removing the impediments to accurate estimation and permitting dependable prediction. We do this in a core geophysical fluid dynamics model, the shallow water equations, at the heart of numerical weather prediction. The method is quite general, however, and can be utilized in the analysis of a broad spectrum of complex systems where measurements are sparse. When the model of the complex system has errors, the method still enables accurate estimation of the state of the model and thus evaluation of the model errors in a manner separated from uncertainties in the data assimilation procedure.

Zhe An; Daniel Rey; Henry D. I. Abarbanel

2014-05-11T23:59:59.000Z

305

A geophysical shock and air blast simulator at the National Ignition Facility  

SciTech Connect (OSTI)

The energy partitioning energy coupling experiments at the National Ignition Facility (NIF) have been designed to measure simultaneously the coupling of energy from a laser-driven target into both ground shock and air blast overpressure to nearby media. The source target for the experiment is positioned at a known height above the ground-surface simulant and is heated by four beams from the NIF. The resulting target energy density and specific energy are equal to those of a low-yield nuclear device. The ground-shock stress waves and atmospheric overpressure waveforms that result in our test system are hydrodynamically scaled analogs of full-scale seismic and air blast phenomena. This report summarizes the development of the platform, the simulations, and calculations that underpin the physics measurements that are being made, and finally the data that were measured. Agreement between the data and simulation of the order of a factor of two to three is seen for air blast quantities such as peak overpressure. Historical underground test data for seismic phenomena measured sensor displacements; we measure the stresses generated in our ground-surrogate medium. We find factors-of-a-few agreement between our measured peak stresses and predictions with modern geophysical computer codes.

Fournier, K. B.; Brown, C. G.; May, M. J.; Compton, S.; Walton, O. R.; Shingleton, N.; Kane, J. O.; Holtmeier, G.; Loey, H.; Mirkarimi, P. B.; Dunlop, W. H. [Lawrence Livermore National Laboratory, P.O. Box 808, L-481, Livermore, California 94550 (United States); Guyton, R. L.; Huffman, E. [National Securities Technologies, Vasco Rd., Livermore, California 94551 (United States)

2014-09-15T23:59:59.000Z

306

Non-invasive geophysical investigation and thermodynamic analysis of a palsa in Lapland, northwest Finland  

E-Print Network [OSTI]

Non-invasive geophysical prospecting and a thermodynamic model were used to examine the structure, depth and lateral extent of the frozen core of a palsa near Lake Peeraj\\"arvi, in northwest Finland. A simple thermodynamic model verified that the current climatic conditions in the study area allow sustainable palsa development. A ground penetrating radar (GPR) survey of the palsa under both winter and summer conditions revealed its internal structure and the size of its frozen core. GPR imaging in summer detected the upper peat/core boundary, and imaging in winter detected a deep reflector that probably represents the lower core boundary. This indicates that only a combined summer and winter GPR survey completely reveals the lateral and vertical extent of the frozen core of the palsa. The core underlies the active layer at a depth of ~0.6 m and extends to about 4 m depth. Its lateral extent is ~15 m x ~30 m. The presence of the frozen core could also be traced as minima in surface temperature and ground condu...

Kohout, Tomáš; Rasmus, Kai; Leppäranta, Matti; Matero, Ilkka

2014-01-01T23:59:59.000Z

307

A Geological and Geophysical Study of the Geothermal Energy Potential of Pilgrim Springs, Alaska  

SciTech Connect (OSTI)

The Pilgrim Springs geothermal area, located about 75 km north of Nome, was the subject of an intensive, reconnaissance-level geophysical and geological study during a 90-day period in the summer of 1979. The thermal springs are located in a northeast-oriented, oval area of thawed ground approximately 1.5 km{sup 2} in size, bordered on the north by the Pilgrim River. A second, much smaller, thermal anomaly was discovered about 3 km northeast of the main thawed area. Continuous permafrost in the surrounding region is on the order of 100 m thick. Present surface thermal spring discharge is {approx} 4.2 x 10{sup -3} m{sup 3} s{sup -1} (67 gallons/minute) of alkali-chloride-type water at a temperature of 81 C. The reason for its high salinity is not yet understood because of conflicting evidence for seawater vs. other possible water sources. Preliminary Na-K-Ca geothermometry suggests deep reservoir temperatures approaching 150 C, but interpretation of these results is difficult because of their dependence on an unknown water mixing history. Based on these estimates, and present surface and drill hole water temperatures, Pilgrim Springs would be classified as an intermediate-temperature, liquid-dominated geothermal system.

Turner, Donald L.; Forbes, Robert B. [eds.

1980-01-01T23:59:59.000Z

308

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 2004 City of Hamilton City of Toronto GO Transit Regional of York Toronto Transit Commission The Data Management Group is a research program located of the funding partners: Ministry of Transportation, Ontario #12;SUMMARY The Data Management Group (DMG

Toronto, University of

309

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 1997 #12;Data Management Group Annual Report 1997 A co-operative project that is jointly funded by members of the Toronto Area Transportation Planning Data Collection: (416) 978-3941 #12;Data Management Group 1997 Annual Report Table of Contents 1 INTRODUCTION

Toronto, University of

310

Data Management Group Annual Report  

E-Print Network [OSTI]

Data Management Group Annual Report 2000 prepared by: Data Management Group Joint Program the operation of the EMME/2 simu- lation package on the Data Management Group's computer system. During the year computing resource at the DMG. A major challenge in 2000 was to maintain this service while operating out

Toronto, University of

311

Water Resources Working Group Report  

E-Print Network [OSTI]

Water Resources Working Group Report This report provided content for the Wisconsin Initiative in February 2011. #12;Water Resources Working Group Wisconsin Initiative on Climate Change Impacts October 2010 #12;Water Resources Working Group Members ­ WICCI Tim Asplund (Co-Chair) - Wisconsin Department

Sheridan, Jennifer

312

Correlation properties of loose groups  

SciTech Connect (OSTI)

The two-point spatial correlation function for loose groups of galaxies is computed, using the recently compiled catalog of groups in the southern hemisphere. It is found that the correlation function for groups has a similar slope to that of galaxies but with a smaller amplitude, confirming an earlier result obtained from a similar analysis of the CfA group catalog. This implies that groups of galaxies are more randomly distributed than galaxies, which may be consistent with the predictions of Kashlinsky (1987) for a gravitational clustering scenario for the formation of large-scale structures. 21 refs.

Maia, M.A.G.; Da Costa, L.N. (Observatorio Nacional do Brasil, Rio de Janeiro (Brazil))

1990-02-01T23:59:59.000Z

313

PID techniques: Alternatives to RICH Methods  

SciTech Connect (OSTI)

In this review article we discuss the recent progress in PID techniques other than the RICH methods. In particular we mention the recent progress in the Transition Radiation Detector (TRD), dE/dx cluster counting, and Time Of Flight (TOF) techniques. The TRD technique is mature and has been tried in many hadron colliders. It needs space though, about 20cm of detector radial space for every factor of 10 in the {pi}/e rejection power, and this tends to make such detectors large. Although the cluster counting technique is an old idea, it was never tried in a real physics experiment. Recently, there are efforts to revive it for the SuperB experiment using He-based gases and waveform digitizing electronics. A factor of almost 2 improvement, compared to the classical dE/dx performance, is possible in principle. However, the complexity of the data analysis will be substantial. The TOF technique is well established, but introduction of new fast MCP-PMT and G-APD detectors creates new possibilities. It seems that resolutions below 20-30ps may be possible at some point in the future with relatively small systems, and perhaps this could be pushed down to 10-15ps with very small systems, assuming that one can solve many systematic issues. However, the cost, rate limitation, aging and cross-talk in multi-anode devices at high BW are problems. There are several groups working on these issues, so progress is likely. Table 6 summarizes the author's opinion of pros and cons of various detectors presented in this paper based on their operational capabilities. We refer the reader to Ref.40 for discussion of other more general limits from the PID point of view.

Vavra, J.; /SLAC

2011-03-01T23:59:59.000Z

314

Telluric and D.C. Resistivity Techniques Applied to the Geophysical Investigation of Basin and Range Geothermal Systems, Part III: The Analysis of Data From Grass Valley, Nevada  

E-Print Network [OSTI]

kg). The generator is powered through a step-up V-belt driveof the generator goes into a 3-phase step-up transformer

Beyer, J.H.

2010-01-01T23:59:59.000Z

315

Breakout Group 3: Water Management  

Broader source: Energy.gov (indexed) [DOE]

methods to address fundamental water transport issue across GDLMEA at relevant spatial resolution (preferably at micron scale) (1) - Techniques for characterization of...

316

TEC Working Group Topic Groups Rail Conference Call Summaries...  

Office of Environmental Management (EM)

September 11, 1998 Meeting June 22, 1998 Meeting May 27, 1998 Meeting November 3, 1997 Meeting September 18, 1997 Meeting More Documents & Publications TEC Working Group...

317

Low Temperature Material Bonding Technique  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2000-10-10T23:59:59.000Z

318

Low temperature material bonding technique  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2002-02-12T23:59:59.000Z

319

Geophysical Monitoring of Foam used to Deliver Remediation Treatments within the Vadose Zone  

SciTech Connect (OSTI)

Foam is a promising vehicle for delivering amendments into the vadose zone for in situ remediation; it is an approach being considered for in situ treatment and stabilization of metals and radionuclides located within the deep vadose zone of the Department of Energy (DOE) Hanford site, WA. A central aspect of evaluating the effectiveness of this approach is the ability to monitor foam distribution, its transformation, and the reactions that it induces in the subsurface, ideally in a non-invasive manner. In this study, we performed laboratory experiments to evaluate the potential of geophysical methods (complex resistivity and time domain reflectometry, TDR) as tools for monitoring foam assisted amendment delivery in the deep vadose zone. Our results indicated great sensitivity of electrical methods to foam transportation and evolution in unsaturated porous media that were related to foam bubble coalescence and drainage processes. Specifically, we observed (1) a decrease of electrical resistivity (increase of electrical conductivity) by over an order of magnitude in both silica sand and natural sediment matrices during foam transportation; (2) an increase of resistivity (decrease of conductivity) by over two fold during foam coalescence and drainage; (3) a distinct phase and imaginary conductivity signature related to the evolution of water films on sediment grains during foam injection and evolution processes. To assist with the interpretation of these data, TDR measurements were used to monitor moisture content, which provided complementary information about foam distribution and drainage. Our results clearly demonstrated the sensitivity of electrical and TDR signals to foam transportation and evolution in unsaturated porous media and suggested the potential of these methods for monitoring the response of a system to foam based remediation treatments at field scales.

Wu, Yuxin; Hubbard, Susan; Wellman, Dawn M.

2012-11-01T23:59:59.000Z

320

Special Issue on geophysics applied to detection and discrimination of unexploded ordnance  

SciTech Connect (OSTI)

Unexploded ordnance (UXO) presents serious problems in Europe, Asia, as well as in the United States. Explosives and mines from World War I and World War II still turn up at European and Asian construction sites, backyard gardens, beaches, wildlife preserves and former military training grounds. The high rate of failure among munitions from 60-90 years ago is cited as one of the main reasons for such a high level of contamination. Apart from war activities, military training has resulted in many uncovered ordnance. It is especially true in the United States, where most UXO has resulted from decades of military training, exercises, and testing of weapons systems. Such UXO contamination prevents civilian land use, threatens public safety, and causes significant environmental concern. In light of this problem, there has been considerable interest shown by federal, state, and local authorities in UXO remediation at former U.S. Department of Defense sites. The ultimate goal of UXO remediation is to permit safe public use of contaminated lands. A Defense Science Board Task Force Report from 1998 lists some 1,500 sites, comprising approximately 15 million acres, that potentially contain UXO. The UXO-related activity for these sites consists of identifying the subareas that actually contain UXO, and then locating and removing the UXO, or fencing the hazardous areas off from the public. The criteria for clearance depend on the intended land end-use and residual hazard risk that is deemed acceptable. Success in detecting UXO depends on the ordnance's size, metal content, and depth of burial, as well as on the ability of geophysical systems to detect ordnance in the presence of metallic fragments from exploded UXO and other metal clutter.

Gasperikova, Erika; Gasperikova, Erika; Beard, Les P.

2007-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

AUTOMATED LEAK DETECTION OF BURIED TANKS USING GEOPHYSICAL METHODS AT THE HANFORD NUCLEAR SITE  

SciTech Connect (OSTI)

At the Hanford Nuclear Site in Washington State, the Department of Energy oversees the containment, treatment, and retrieval of liquid high-level radioactive waste. Much of the waste is stored in single-shelled tanks (SSTs) built between 1943 and 1964. Currently, the waste is being retrieved from the SSTs and transferred into newer double-shelled tanks (DSTs) for temporary storage before final treatment. Monitoring the tanks during the retrieval process is critical to identifying leaks. An electrically-based geophysics monitoring program for leak detection and monitoring (LDM) has been successfully deployed on several SSTs at the Hanford site since 2004. The monitoring program takes advantage of changes in contact resistance that will occur when conductive tank liquid leaks into the soil. During monitoring, electrical current is transmitted on a number of different electrode types (e.g., steel cased wells and surface electrodes) while voltages are measured on all other electrodes, including the tanks. Data acquisition hardware and software allow for continuous real-time monitoring of the received voltages and the leak assessment is conducted through a time-series data analysis. The specific hardware and software combination creates a highly sensitive method of leak detection, complementing existing drywell logging as a means to detect and quantify leaks. Working in an industrial environment such as the Hanford site presents many challenges for electrical monitoring: cathodic protection, grounded electrical infrastructure, lightning strikes, diurnal and seasonal temperature trends, and precipitation, all of which create a complex environment for leak detection. In this discussion we present examples of challenges and solutions to working in the tank farms of the Hanford site.

CALENDINE S; SCHOFIELD JS; LEVITT MT; FINK JB; RUCKER DF

2011-03-30T23:59:59.000Z

322

Fundamentals and Techniques of Nonimaging  

SciTech Connect (OSTI)

This is the final report describing a long term basic research program in nonimaging optics that has led to major advances in important areas, including solar energy, fiber optics, illumination techniques, light detectors, and a great many other applications. The term ''nonimaging optics'' refers to the optics of extended sources in systems for which image forming is not important, but effective and efficient collection, concentration, transport, and distribution of light energy is. Although some of the most widely known developments of the early concepts have been in the field of solar energy, a broad variety of other uses have emerged. Most important, under the auspices of this program in fundamental research in nonimaging optics established at the University of Chicago with support from the Office of Basic Energy Sciences at the Department of Energy, the field has become very dynamic, with new ideas and concepts continuing to develop, while applications of the early concepts continue to be pursued. While the subject began as part of classical geometrical optics, it has been extended subsequently to the wave optics domain. Particularly relevant to potential new research directions are recent developments in the formalism of statistical and wave optics, which may be important in understanding energy transport on the nanoscale. Nonimaging optics permits the design of optical systems that achieve the maximum possible concentration allowed by physical conservation laws. The earliest designs were constructed by optimizing the collection of the extreme rays from a source to the desired target: the so-called ''edge-ray'' principle. Later, new concentrator types were generated by placing reflectors along the flow lines of the ''vector flux'' emanating from lambertian emitters in various geometries. A few years ago, a new development occurred with the discovery that making the design edge-ray a functional of some other system parameter permits the construction of whole new classes of devices with greatly expanded capabilities compared to conventional approaches. These ''tailored edge-ray'' designs have dramatically broadened the range of geometries in which nonimaging optics can provide a significant performance improvement. Considerable progress continues to be made in furthering the incorporation of nonimaging secondaries into practical high concentration and ultra-high concentration solar collector systems. In parallel with the continuing development of nonimaging geometrical optics, our group has been working to develop an understanding of certain fundamental physical optics concepts in the same context. In particular, our study of the behavior of classical radiance in nonimaging systems, has revealed some fundamentally important new understandings that we have pursued both theoretically and experimentally. The field is still relatively new and is rapidly gaining widespread recognition because it fuels many industrial applications. Because of this, during the final years of the project, our group at Chicago has been working more closely with a team of industrial scientists from Science Applications International Corporation (SAIC) at first informally, and later more formally, beginning in 1998, under a formal program initiated by the Department of Energy and incrementally funded through this existing grant. This collaboration has been very fruitful and has led to new conceptual breakthroughs which have provided the foundation for further exciting growth. Many of these concepts are described in some detail in the report.

O'Gallagher, J. J.; Winston, R.

2003-07-10T23:59:59.000Z

323

On The Harmonic Oscillator Group  

E-Print Network [OSTI]

We discuss the maximum kinematical invariance group of the quantum harmonic oscillator from a view point of the Ermakov-type system. A six parameter family of the square integrable oscillator wave functions, which seems cannot be obtained by the standard separation of variables, is presented as an example. The invariance group of generalized driven harmonic oscillator is shown to be isomorphic to the corresponding Schroedinger group of the free particle.

Raquel M. Lopez; Sergei K. Suslov; Jose M. Vega-Guzman

2011-12-04T23:59:59.000Z

324

Optimizing MATLAB feval with Dynamic Techniques Nurudeen Lameed Laurie Hendren  

E-Print Network [OSTI]

Optimizing MATLAB feval with Dynamic Techniques Nurudeen Lameed Laurie Hendren Sable Research Group,hendren}@cs.mcgill.ca, http://www.sable.mcgill.ca/mclab Abstract MATLAB is a popular dynamic array-based language used by en- gineers, scientists and students worldwide. The built-in function feval is an important MATLAB feature

325

Vol. 38, No. 2 (2005) BioTechniques 1 Introduction  

E-Print Network [OSTI]

subsets to be tagged, puri- fied, and analyzed. As a result, this technique is able to identify novel), generally consist of three basic elements (Figure 1). The warhead consists of a reactive func- tional group interactions, and prevents steric congestion. The warhead is perhaps to most critical component of an ABP

Bogyo, Matthew

2005-01-01T23:59:59.000Z

326

Neil 65 Group Picture Neil 65 Group Picture  

E-Print Network [OSTI]

Neil 65 Group Picture Neil 65 Group Picture December 14, 2003 Row 1: Tom Dowling, Nolan Mc-Marie Belcastro, Chris Stephens, Rajneesh Hegde Row 2: Paul Wollan, Bruce Richter, Mike Plummer, Xiaoya Zha, Dan Bannai, Mike Albertson, Joan Hutchinson, Matt Devos, Tom Zaslovsky, Mark Ellingham, Sandra Kingan, James

Mohar, Bojan

327

Safarevic's Theorem on Solvable Groups as Galois Groups  

E-Print Network [OSTI]

extension Kjk with Galois group G(Kjk) ¸ = G. Ÿ SafareviŸc proved this result in 1954. The intricate proof ) are embedable into G. Then there exists a Galois extension Kjk with Galois group isomorphic to G, which

328

Exceptional groups, symmetric spaces and applications  

SciTech Connect (OSTI)

In this article we provide a detailed description of a technique to obtain a simple parameterization for different exceptional Lie groups, such as G{sub 2}, F{sub 4} and E{sub 6}, based on their fibration structure. For the compact case, we construct a realization which is a generalization of the Euler angles for SU(2), while for the non compact version of G{sub 2(2)}/SO(4) we compute the Iwasawa decomposition. This allows us to obtain not only an explicit expression for the Haar measure on the group manifold, but also for the cosets G{sub 2}/SO(4), G{sub 2}/SU(3), F{sub 4}/Spin(9), E{sub 6}/F{sub 4} and G{sub 2(2)}/SO(4) that we used to find the concrete realization of the general element of the group. Moreover, as a by-product, in the simplest case of G{sub 2}/SO(4), we have been able to compute an Einstein metric and the vielbein. The relevance of these results in physics is discussed.

Cerchiai, Bianca L.; Cacciatori, Sergio L.

2009-03-31T23:59:59.000Z

329

Transportation External Coordination Working Group:  

Broader source: Energy.gov (indexed) [DOE]

External Coordination Working Group: Background and Process Judith Holm National Transportation Program Albuquerque, New Mexico April 21, 2004 TEC History * DOE's Office of...

330

Interagency Sustainability Working Group Members  

Broader source: Energy.gov [DOE]

Chaired by the Federal Energy Management Program, the Interagency Sustainability Working Group is composed of representatives from every major Federal agency.

331

Infrared Thermography (IRT) Working Group  

Broader source: Energy.gov (indexed) [DOE]

Infrared Thermography (IRT) Working Group Sco McWilliams U.S. Photovoltaic Manufacturing Consor;um (PVMC) Infrared Thermography Infrared Thermography (IRT) has been demonstrated...

332

Lorentz Group in Ray Optics  

E-Print Network [OSTI]

It has been almost one hundred years since Einstein formulated his special theory of relativity in 1905. He showed that the basic space-time symmetry is dictated by the Lorentz group. It is shown that this group of Lorentz transformations is not only applicable to special relativity, but also constitutes the scientific language for optical sciences. It is noted that coherent and squeezed states of light are representations of the Lorentz group. The Lorentz group is also the basic underlying language for classical ray optics, including polarization optics, interferometers, the Poincare\\'e sphere, one-lens optics, multi-lens optics, laser cavities, as well multilayer optics.

S. Baskal; E. Georgieva; Y. S. Kim; M. E. Noz

2004-01-18T23:59:59.000Z

333

FORENSIC TECHNIQUES FOR CELL PHONES  

E-Print Network [OSTI]

June 2007 FORENSIC TECHNIQUES FOR CELL PHONES FORENSIC TECHNIQUES FOR CELL PHONES Shirley Radack cell phones are widely used for both personal and professional applications, the technology of cell forensics usually do not cover cell phones, especially those with advanced capabilities. The digital

334

Summary Report of Geophysical Logging For The Seismic Boreholes Project at the Hanford Site Waste Treatment Plant.  

SciTech Connect (OSTI)

During the period of June through October 2006, three deep boreholes and one corehole were drilled beneath the site of the Waste Treatment Plant (WTP) at the U.S. Department of Energy (DOE) Hanford Site near Richland, Washington. The boreholes were drilled to provide information on ground-motion attenuation in the basalt and interbedded sediments underlying the WTP site. This report describes the geophysical logging of the deep boreholes that was conducted in support of the Seismic Boreholes Project, defined below. The detailed drilling and geological descriptions of the boreholes and seismic data collected and analysis of that data are reported elsewhere.

Gardner, Martin G.; Price, Randall K.

2007-02-01T23:59:59.000Z

335

GIS Regional Spatial Data from the Great Basin Center for Geothermal Energy: Geochemical, Geodesic, Geologic, Geophysical, Geothermal, and Groundwater Data  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The Great Basin Center for Geothermal Energy, part of the University of Nevada, Reno, conducts research towards the establishment of geothermal energy as an economically viable energy source within the Great Basin. The Center specializes in collecting and synthesizing geologic, geochemical, geodetic, geophysical, and tectonic data, and using Geographic Information System (GIS) technology to view and analyze this data and to produce favorability maps of geothermal potential. The center also makes its collections of spatial data available for direct download to the public. Data are in Lambert Conformable Conic Projection.

336

Research documentation per participating group  

E-Print Network [OSTI]

Research documentation per participating group #12;2. RESEARCH DOCUMENTATION OF THE GROUP SYSTEM Management Hybrid trucks StDy Steen, R. v.d. (PhD 3) FEM Tyre Modelling StDy 5.4 Mechanical Design Bedem, Ir

Franssen, Michael

337

Federal Utility Partnership Working Group  

Broader source: Energy.gov [DOE]

The Federal Utility Partnership Working Group (FUPWG) establishes partnerships and facilitates communications among Federal agencies, utilities, and energy service companies. The group develops strategies to implement cost-effective energy efficiency and water conservation projects through utility incentive programs at Federal sites.

338

Review : integration of EMI technique with global vibration technique  

E-Print Network [OSTI]

In the last decade, the development of Structural Health Monitoring (SHM) has been skyrocketing because of the serious consequences that come with structural failure. Traditional damage detection techniques, also known as ...

Ni, Suteng

2013-01-01T23:59:59.000Z

339

Geophysical Monitoring of Multiple Phase Saturation of Rocks: Application to CO[subscript 2] Sequestration  

E-Print Network [OSTI]

4-D seismic techniques rely on measuring changes in velocity over time in order to detect changes during activities such as CO[subscript 2] flooding and storage in a reservoir. Wang et al. [1998] detail a laboratory study ...

Brown, Stephen

2011-01-01T23:59:59.000Z

340

Groups  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany: Energy ResourcesNewsInformation

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Experimental techniques and measurement accuracies  

SciTech Connect (OSTI)

A brief description of the experimental tools available for fusion neutronics experiments is given. Attention is paid to error estimates mainly for the measurement of tritium breeding ratio in simulated blankets using various techniques.

Bennett, E.F.; Yule, T.J.; DiIorio, G.; Nakamura, T.; Maekawa, H.

1985-02-01T23:59:59.000Z

342

Marine Geophysical Researches 21: 147179, 2000. 2000 Kluwer Academic Publishers. Printed in the Netherlands.  

E-Print Network [OSTI]

is parted into three domains (Figure 1). The south-eastern and central domains (from Wadi Tayin to Haylayn, a US Geological Survey group produced a detailed, 1:100 000 geological and structural map of the Wadi

Demouchy, Sylvie

343

Sustainability Community Special Interest Group  

E-Print Network [OSTI]

Sustainability Community Special Interest Group Meeting, CHI 2012 Eli Blevis, Yue Pan, & David: Weather Effects #12;Discussion Catalyst: Social Sustainability #12;Discussion Catalyst: Barriers & Brick Catalyst: Education #12;Discussion Catalyst: Cultural Factors #12;Discussion Catalyst: Finding Our Way #12

Blevis, Eli

344

Ayrshire Red Squirrel Group Squirrelpox  

E-Print Network [OSTI]

Ayrshire Red Squirrel Group SSG Report 1st March 2012 Squirrelpox Sero-positive grey squirrels. Concerns are also rising that there may be outbreaks of pox in red squirrel populations which have gone

345

Midwest Hydro Users Group Meeting  

Broader source: Energy.gov [DOE]

The Midwest Hydro Users Group will be holding their annual Fall meeting on November 12th and 13th in Wausau, Wisconsin.  An Owners-only meeting on the afternoon of the 12th followed by a full...

346

Galois Groups of Schubert Problems  

E-Print Network [OSTI]

GALOIS GROUPS OF SCHUBERT PROBLEMS A Dissertation by ABRAHAM MARTIN DEL CAMPO SANCHEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY... August 2012 Major Subject: Mathematics GALOIS GROUPS OF SCHUBERT PROBLEMS A Dissertation by ABRAHAM MARTIN DEL CAMPO SANCHEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements...

Martin Del Campo Sanchez, Abraham

2012-10-19T23:59:59.000Z

347

LLNL Chemical Kinetics Modeling Group  

SciTech Connect (OSTI)

The LLNL chemical kinetics modeling group has been responsible for much progress in the development of chemical kinetic models for practical fuels. The group began its work in the early 1970s, developing chemical kinetic models for methane, ethane, ethanol and halogenated inhibitors. Most recently, it has been developing chemical kinetic models for large n-alkanes, cycloalkanes, hexenes, and large methyl esters. These component models are needed to represent gasoline, diesel, jet, and oil-sand-derived fuels.

Pitz, W J; Westbrook, C K; Mehl, M; Herbinet, O; Curran, H J; Silke, E J

2008-09-24T23:59:59.000Z

348

Networks Spanish project COPABIB Group Murcia Group Polit. Valencia Group La Laguna Computation in heterogeneous-hierarchical  

E-Print Network [OSTI]

Networks Spanish project COPABIB Group Murcia Group Polit. Valencia Group La Laguna Computation in heterogeneous-hierarchical environments Project COPABIB: Univ. Alicante, Castell´on, La Laguna, Murcia COPABIB Group Murcia Group Polit. Valencia Group La Laguna Contents 1 Networks 2 Spanish project COPABIB 3

Giménez, Domingo

349

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103, NO. D24, PAGES 32,257-32,276, JANUARY 27, 1998 Synergistic algorithm for estimating vegetation canopy leaf  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103, NO. D24, PAGES 32,257-32,276, JANUARY 27, 1998 32257 communities across the globe in response to climate changes. Leaf area index (LAI) is a state parameter in all models describing the exchange of fluxes of energy, mass (e.g., water and CO2), and momentum between

Myneni, Ranga B.

350

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 61816185, doi:10.1002/2013GL058403, 2013 Marginal instability and deep cycle turbulence in the eastern  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 6181­6185, doi:10.1002/2013GL058403, 2013 Marginal in the eastern equatorial Pacific Ocean, Geophys. Res. Lett., 40, 6181­6185, doi:10.1002/2013GL058403. 1-8276/13/10.1002/2013GL058403 therefore come to be known as the "deep cycle" (DC) [Gregg et al., 1985; Moum and Caldwell

351

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 15, doi:10.1002/2013GL058669, 2013 The effect of large-scale shear-velocity heterogeneity  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 1­5, doi:10.1002/2013GL058669, 2013 The effect of large precursor amplitudes, Geophys. Res. Lett., 40, doi:10.1002/2013GL058669. 1. Introduction [2] Seismic, the use is non-commercial and no modifications or adaptations are made. 0094-8276/13/10.1002/2013GL058669

Ritsema, Jeroen

352

GEOPHYSICAL RESEARCH LETTERS, VOL. 36, L10705, DOI:10.1029/2009GL037812, 2009 Nonequilibrium Statistical Mechanics of Tropical Sea Surface  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 36, L10705, DOI:10.1029/2009GL037812, 2009 Nonequilibrium Variability, Geophys. Res. Lett., 36, L10705, doi:10.1029/2009GL037812. To view the published open abstract, go to http://dx.doi.org and enter the DOI. 0094-8276/09/2009GL037812$5.00 and Cohen, 1995; Evans

Weiss, Jeffrey B.

353

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 15, doi:10.1002/2013GL057942, 2013 Elastic dynamics and tidal migration of grounding lines modify  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 1­5, doi:10.1002/2013GL057942, 2013 Elastic dynamics.1002/2013GL057942. 1. Introduction [2] Grounding zones of marine ice sheets are interfaces between grounded line (GL) position [Rignot et al., 2011], knowledge of which is required to determine the ice flux

Sayag, Roiy

354

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 55035507, doi:10.1002/2013GL057582, 2013 An open ocean region in Neoproterozoic glaciations would have  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 5503­5507, doi:10.1002/2013GL057582, 2013 An open ocean.1002/2013GL057582. 1. Introduction [2] Among the most fundamental and undisputed evi- dence-8276/13/10.1002/2013GL057582 50% [Hyde et al., 2000] or even less [Crowley et al., 2001; Liu and Peltier, 2010

Abbot, Dorian Schuyler

355

GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L06106, DOI:10.1029/2004GL021696, 2005 Drifting field-aligned density structures in the night-side polar cap  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L06106, DOI:10.1029/2004GL021696, 2005 Drifting field-aligned density structures in the night-side polar cap, Geophys. Res. Lett., 32, L06106, doi:10.1029/2004GL021696-8276/05/2004GL021696$5.00 The Cluster spacefleet passes through the polar cap region at ra- dial distances

Santolik, Ondrej

356

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 16, doi:10.1002/2013GL058114, 2013 Surface exchange between the Weddell and Scotia Seas  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 1­6, doi:10.1002/2013GL058114, 2013 Surface exchange between and Scotia Seas, Geophys. Res. Lett., 40, doi:10.1002/2013GL058114. 1. Introduction [2] The intermittent. All Rights Reserved. 0094-8276/13/10.1002/2013GL058114 [3] The intricate structure of the Weddell Sea

Thompson, Andrew

357

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 99, NO. A12, PAGES 23,289-23,296, DECEMBER 1, 1994 Solar flare effectsat Ebre: Unidimensionalphysical,integrated  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 99, NO. A12, PAGES 23,289-23,296, DECEMBER 1, 1994 Solar.M. Torta,· andM. Menvielle3 Abstract. A great increaseof the ionizing radiationduring solar flares,electrondensitiesandelectriccurrents in the ionosphere,followedsimultaneouslyby disturbancesof the magneticelementsat groundlevel (solar flare effects

358

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 87, NO. C12, PAGES 9667-9674, NOVEMBER 20, 1982 Sensitivity of an Annual Mean Diffusive Energy Balance  

E-Print Network [OSTI]

of an Annual Mean Diffusive Energy Balance Model With an Ice Sheet KENNETH P. BOWMAN GeophysicalFluid Dynamics averaged energy balance models have received muchattentionsincethey were introducedby Budyko[1969. For a review of energy balance models and a discussionof albedo feedback, see North et al. [1981]. Models have

359

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 102,NO. B8, PAGES 17,797-17,806,AUGUST 10, 1997 Mechanical effect of fluid migration  

E-Print Network [OSTI]

faulting. As a typical mechan- ical effect,we can mention the loweringof fracture strength by fluidJOURNAL OF GEOPHYSICAL RESEARCH, VOL. 102,NO. B8, PAGES 17,797-17,806,AUGUST 10, 1997 Mechanical effect of fluid migration on the complexity of seismicity Teruo Yamashita Earthquake Research Institute

Yamashita, Teruo

360

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, The 2011 Mw 7.1 Van (Eastern Turkey) Earthquake -1  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, The 2011 Mw 7.1 Van (Eastern Turkey, 2012, 5:45pm D R A F T #12;X - 2 ELLIOTT ET AL.: 2011 VAN EARTHQUAKE, EASTERN TURKEY moment and source.: 2011 VAN EARTHQUAKE, EASTERN TURKEY X - 3 Interferograms from the ENVISAT satellite were derived from

Cambridge, University of

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Sea Ice Remote Sensing Using AMSR-E 89 GHz Channels  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Sea Ice Remote Sensing Using AMSR progress in sea ice concentration remote sensing by satellite microwave radiometers has been stimulated models, e.g. the heat flux between ocean and atmosphere, especially near coast- lines and in polynyas. (2

Bremen, Universität

362

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 2245-2248, AUGUST 1, 2000 Sub-surface nuclear tests monitoring through the  

E-Print Network [OSTI]

) which should detect nuclear tests down to 1 kiloton (kt) TNT equivalent anywhere on the planet. The IMS), hydroacoustic and infrasound waves will help check for underground, under-water and atmospheric nuclear testsGEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 2245-2248, AUGUST 1, 2000 Sub-surface nuclear

Hourdin, Chez Frédéric

363

GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 18, PAGES 3545-3548, SEPTEMBER 15, 2001 A method for estimating 2D wrinkle ridge strain  

E-Print Network [OSTI]

on the central Columbia Plateau are a succession of thrusted anticlines thought to be analogs of planetary in the inner Solar Sys- tem [e.g., Watters, 1988], and the conclusion that developing a method for estimating Copyright 2001 by the American Geophysical Union. Paper number 2001GL012934. 0094-8276/01/2001GL012934

Mege, Daniel

364

GEOPHYSICAL RESEARCH LETTERS, VOL. 0, NO. 0, PAGES 0-0, M 0, 2001 Decadal variations in the Subtropical Cells and  

E-Print Network [OSTI]

for generating decadal sea sur- face temperature (SST) variability in the equatorial Pacific is investigated Frontier Research System for Global Change, Yoko- hama, Japan Copyright 2001 by the American Geophysical T . For example, although the V T mechanism is important for generating subsurface variability in the sub

Xie, Shang-Ping

365

Geochemical Characterization Using Geophysical Data and Markov Chain Monte Carolo methods: A Case Study at the South Oyster Bacterial Transport Site in Virginia  

SciTech Connect (OSTI)

The spatial distribution of field-scale geochemical parameters, such as extractable Fe(II) and Fe(III), influences microbial processes and thus the efficacy of bioremediation. Because traditional characterization of those parameters is invasive and laborious, it is rarely performed sufficiently at the field-scale. Since both geochemical and geophysical parameters often correlate to some common physical properties (such as lithofacies), we investigated the utility of tomographic radar attenuation data for improving estimation of geochemical parameters using a Markov Chain Monte Carlo (MCMC) approach. The data used in this study included physical, geophysical, and geochemical measurements collected in and between several boreholes at the DOE South Oyster Bacterial Transport Site in Virginia. Results show that geophysical data, constrained by physical data, provided field-scale information about extractable Fe(II) and Fe(III) in a minimally invasive manner and with a resolution unparalleled by other geochemical characterization methods. This study presents our estimation framework for estimating Fe(II) and Fe(III), and its application to a specific site. Our hypothesis--that geochemical parameters and geophysical attributes can be linked through their mutual dependence on physical properties--should be applicable for estimating other geochemical parameters at other sites.

Chen, Jinsong; Hubbard, Susan; Rubin, Yoram; Murray, Chris; Roden, Eric; Majer, Ernest

2003-11-18T23:59:59.000Z

366

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 105, NO. Dl, PAGES 1387-1415, JANUARY 20,2000 Sulfur chelllistry in the National Center for  

E-Print Network [OSTI]

Understanding the tropospheric sulfur cycle is impor- tant because of its contribution to acid rain and its effect on the Earth's radiation balance. The role of sulfuric acid in acid rain has been recognizedJOURNAL OF GEOPHYSICAL RESEARCH, VOL. 105, NO. Dl, PAGES 1387-1415, JANUARY 20,2000 Sulfur

Schwartz, Stephen E.

367

GEOPHYSICS, VOL. 60, NO. 4 (JULY-AUGUST 1995); P. 998-1006, 6 FIGS., 2 TABLES. The effect of steam quality on the electrical behavior  

E-Print Network [OSTI]

GEOPHYSICS, VOL. 60, NO. 4 (JULY-AUGUST 1995); P. 998-1006, 6 FIGS., 2 TABLES. The effect of steam quality on the electrical behavior of steam-flooded sands: A laboratory study David B. Butler* and Rosemary J. Knight* ABSTRACT Laboratory measurements of the effects of steam injection on the electrical

Knight, Rosemary

368

Introduction Abstract reflection groups and abstract buildings  

E-Print Network [OSTI]

Introduction Abstract reflection groups and abstract buildings Their geometric realizations Compactly supported cohomology L2 -cohomology Cohomology of Coxeter groups and buildings Mike Davis (work groups and buildings #12;Introduction Abstract reflection groups and abstract buildings Their geometric

Vogtmann, Karen

369

Group tele-immersion:enabling natural interactions between groups at distant sites.  

SciTech Connect (OSTI)

We present techniques and a system for synthesizing views for video teleconferencing between small groups. In place of replicating one-to-one systems for each pair of users, we create a single unified display of the remote group. Instead of performing dense 3D scene computation, we use more cameras and trade-off storage and hardware for computation. While it is expensive to directly capture a scene from all possible viewpoints, we have observed that the participants viewpoints usually remain at a constant height (eye level) during video teleconferencing. Therefore, we can restrict the possible viewpoint to be within a virtual plane without sacrificing much of the realism, and in cloning so we significantly reduce the number of required cameras. Based on this observation, we have developed a technique that uses light-field style rendering to guarantee the quality of the synthesized views, using a linear array of cameras with a life-sized, projected display. Our full-duplex prototype system between Sandia National Laboratories, California and the University of North Carolina at Chapel Hill has been able to synthesize photo-realistic views at interactive rates, and has been used to video conference during regular meetings between the sites.

Yang, Christine L. (Sandia National Laboratories, Livermore, CA); Stewart, Corbin (Sandia National Laboratories, Livermore, CA); Nashel, Andrew (University of North Carolina at Chapel Hill, Chapel Hill, NC)

2005-08-01T23:59:59.000Z

370

Review of uranium bioassay techniques  

SciTech Connect (OSTI)

A variety of analytical techniques is available for evaluating uranium in excreta and tissues at levels appropriate for occupational exposure control and evaluation. A few (fluorometry, kinetic phosphorescence analysis, {alpha}-particle spectrometry, neutron irradiation techniques, and inductively-coupled plasma mass spectrometry) have also been demonstrated as capable of determining uranium in these materials at levels comparable to those which occur naturally. Sample preparation requirements and isotopic sensitivities vary widely among these techniques and should be considered carefully when choosing a method. This report discusses analytical techniques used for evaluating uranium in biological matrices (primarily urine) and limits of detection reported in the literature. No cost comparison is attempted, although references are cited which address cost. Techniques discussed include: {alpha}-particle spectrometry; liquid scintillation spectrometry, fluorometry, phosphorometry, neutron activation analysis, fission-track counting, UV-visible absorption spectrophotometry, resonance ionization mass spectrometry, and inductively-coupled plasma mass spectrometry. A summary table of reported limits of detection and of the more important experimental conditions associated with these reported limits is also provided.

Bogard, J.S.

1996-04-01T23:59:59.000Z

371

Erasure Techniques in MRD codes  

E-Print Network [OSTI]

This book is organized into six chapters. The first chapter introduces the basic algebraic structures essential to make this book a self contained one. Algebraic linear codes and their basic properties are discussed in chapter two. In chapter three the authors study the basic properties of erasure decoding in maximum rank distance codes. Some decoding techniques about MRD codes are described and discussed in chapter four of this book. Rank distance codes with complementary duals and MRD codes with complementary duals are introduced and their applications are discussed. Chapter five introduces the notion of integer rank distance codes. The final chapter introduces some concatenation techniques.

W. B. Vasantha Kandasamy; Florentin Smarandache; R. Sujatha; R. S. Raja Durai

2012-05-03T23:59:59.000Z

372

QA-Pagelet: Data Preparation Techniques for Large Scale Data Analysis of the Deep Web  

E-Print Network [OSTI]

1 QA-Pagelet: Data Preparation Techniques for Large Scale Data Analysis of the Deep Web James data preparation technique for large scale data analysis of the Deep Web. To support QA the Deep Web. Two unique features of the Thor framework are (1) the novel page clustering for grouping

Liu, Ling

373

Toward Optimized Bioclogging and Biocementation Through Combining Advanced Geophysical Monitoring and Reactive Transport Modeling  

E-Print Network [OSTI]

and electrical techniques); (ii) developing and using a reactive transport simulator capable of predicting and Reactive Transport Modeling Approaches Christopher G Hubbard1 , Susan S. Hubbard1 , Yuxin Wu1 , Vikranth heterogeneities at the field scale. Optimization of these strategies requires advances in mechanistic reactive

Hubbard, Susan

374

CFCC working group meeting: Proceedings  

SciTech Connect (OSTI)

This report is a compilation of the vugraphs presented at this meeting. Presentations covered are: CFCC Working Group; Overview of study on applications for advanced ceramics in industries for the future; Design codes and data bases: The CFCC program and its involvement in ASTM, ISO, ASME, and military handbook 17 activities; CFCC Working Group meeting (McDermott Technology); CFCC Working Group meeting (Textron); CFCC program for DMO materials; Developments in PIP-derived CFCCs; Toughened Silcomp (SiC-Si) composites for gas turbine engine applications; CFCC program for CVI materials; Self-lubricating CFCCs for diesel engine applications; Overview of the CFCC program`s supporting technologies task; Life prediction methodologies for CFCC components; Environmental testing of CFCCs in combustion gas environments; High-temperature particle filtration ORNL/DCC CRADA; HSCT CMC combustor; and Case study -- CFCC shroud for industrial gas turbines.

NONE

1997-12-31T23:59:59.000Z

375

Paul Sellin, Radiation Imaging Group The role of defects on CdTe detector performance  

E-Print Network [OSTI]

Paul Sellin, Radiation Imaging Group The role of defects on CdTe detector performance P.J. Sellin1-destructive material characterisation techniques have been applied to CdTe wafers grown by the Travelling Heater Method Imaging Group PL mapping of whole CdTe wafers PL ( =819 nm) scan for two CdTe wafers, (left: wafer L700

Sellin, Paul

376

STEIN'S METHOD, HEAT KERNEL, AND TRACES OF POWERS OF ELEMENTS OF COMPACT LIE GROUPS  

E-Print Network [OSTI]

STEIN'S METHOD, HEAT KERNEL, AND TRACES OF POWERS OF ELEMENTS OF COMPACT LIE GROUPS JASON FULMAN Abstract. Combining Stein's method with heat kernel techniques, we show that the trace of the jth power There is a large literature on the traces of powers of random elements of compact Lie groups. One of the earliest

Fulman, Jason

377

STEIN'S METHOD, HEAT KERNEL, AND TRACES OF POWERS OF ELEMENTS OF COMPACT LIE GROUPS  

E-Print Network [OSTI]

STEIN'S METHOD, HEAT KERNEL, AND TRACES OF POWERS OF ELEMENTS OF COMPACT LIE GROUPS JASON FULMAN Abstract. Combining Stein's method with heat kernel techniques, we show that the trace of the jth power on the traces of powers of random elements of compact Lie groups. One of the earliest results is due to Diaconis

Fulman, Jason

378

Data Mining: Concepts and Techniques  

E-Print Network [OSTI]

1 Data Mining: Concepts and Techniques (3rd ed.) -- Chapter 3 -- Jiawei Han, Micheline Kamber. All rights reserved. #12;2013/08/12 2 #12;33 Chapter 3: Data Preprocessing n Data Preprocessing: An Overview n Data Quality n Major Tasks in Data Preprocessing n Data Cleaning n Data Integration n Data

Geldenhuys, Jaco

379

Dissertation Imaging as Characterization Techniques  

E-Print Network [OSTI]

Telluride Photovoltaics The goal of increasing the efficiency of solar cell devices is a universal oneDissertation Imaging as Characterization Techniques for Thin-Film Cadmium Telluride Photovoltaics. Increased photovoltaic (PV) performance means an increase in competition with other energy tech- nologies

Sites, James R.

380

Geophysical variables and behavior: LIII. Epidemiological considerations for incidence of cancer and depression in areas of frequent UFO reports  

SciTech Connect (OSTI)

Luminous phenomena and anomalous physical forces have been hypothesized to be generated by focal tectonic strain fields that precede earthquakes. If these geophysical processes exist, then their spatial and temporal density should be greatest during periods of protracted, localized UFO reports; they might be used as dosimetric indicators. Contemporary epidemiological data concerning the health risks of power frequency electromagnetic fields and radon gas levels (expected correlates of certain tectonic strain fields), suggest that increased incidence (odds ratios greater 1:3) of brain tumors and leukemia should be evident within flap areas. In addition the frequency of variants of temporal lobe lability, psychological depression and posttraumatic stress should be significantly elevated. UFO field investigators, because they have repeated, intermittent close proximity to these fields, are considered to be a particularly high risk population for these disorders. 22 references.

Persinger, M.A.

1988-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

National Report for the International Association of Geodesy of the International Union of Geodesy and Geophysics 2007-2010  

E-Print Network [OSTI]

This report submitted to the International Association of Geodesy (IAG) of the International Union of Geodesy and Geophysics (IUGG) contains results obtained by Russian geodesists in 2007-2010. In the report prepared for the XXV General Assembly of IUGG (Australia, Melbourne, 28 June - 7 July 2011), the results of principal researches in geodesy, geodynamics, gravimetry, in the studies of geodetic reference frame creation and development, Earth's shape and gravity field, Earth's rotation, geodetic theory, its application and some other directions are briefly described. The period from 2007 to 2010 was still difficult for Russian geodesy mainly due to the permanent reformation of state geodetic administration as well as state education structure and organization. The report is organized as a sequence of abstracts of principal publications and presentations for symposia, conferences, workshops, etc. Each of the report paragraphs includes a list of scientific papers published in 2007-2010 including those prepare...

Boyarsky, E A; Gerasimenko, M D; Demianov, G V; Kaufman, M B; Kaftan, V I; Mazurova, E M; Malkin, Z M; Molodenskii, S M; Neyman, Yu M; Pevnev, A K; Savinykh, V P; Steblov, G M; Tatevian, S K; Tolchel'nikova, S A; Shestakov, N V

2015-01-01T23:59:59.000Z

382

Annales Geophysicae (2001) 19: 411424 c European Geophysical Society 2001 Geophysicae  

E-Print Network [OSTI]

21 Uppsala, Sweden 4Finnish Meteorological Institute, Observational Services, PO Box 503, FIN-00101 between the echo power, Doppler veloc- ity, spectral width and elevation angles for these two groups waves and instabilities; polar ionosphere) 1 Introduction Metre-scale irregularities in the auroral E

Paris-Sud XI, Université de

383

Task Group 9 Update (Presentation)  

SciTech Connect (OSTI)

This presentation is a brief update of IEC TC82 QA Task Force, Group 9. Presented is an outline of the recently submitted New Work Item Proposal (NWIP) for a Comparative Thermal Cycling Test for CPV Modules to Differentiate Thermal Fatigue Durability.

Bosco, N.

2014-04-01T23:59:59.000Z

384

Data Management Group Annual Report  

E-Print Network [OSTI]

of Civil Engineering, Uni- versity of Toronto Data Management Groups Web Site http Susanna Choy, B.A.Sc. (Industrial Engineering), M.Eng. (Civil Engineering) Uni- versity of Toronto, P.Eng. Reuben Briggs, B.A.Sc. (Civil Engineering), M.A.Sc. (Civil Engineering) Univer- sity of Toronto, P

Toronto, University of

385

Systems Biology Group Decision Making  

E-Print Network [OSTI]

entities (e.g., molecular, cellular, organism, ecological) #12;OHIO STATE T . H . E UNIVERSITY Systems/analysis of perception, attention, choice, learning, optimality,... #12;OHIO STATE T . H . E UNIVERSITY Group decision making, evolution and ecology Current work: Modeling/analysis of coordinated motion, foraging, choice

386

Geodesic spaces : momentum Groups : symmetry  

E-Print Network [OSTI]

Geodesic spaces : momentum :: Groups : symmetry Vaughan Pratt Stanford University BLAST 2010 a · b denoting b rotated 90 degrees about a. End of reprise. 3. This talk; Geodesic spaces At FMCS. as points evenly spaced along a geodesic , right distributivity expresses a symmetry of about an arbitrary

Pratt, Vaughan

387

Policy Groups Winfried E. Kuhnhauser  

E-Print Network [OSTI]

1 Policy Groups Winfried E. Kuhnhauser GMD National Research Center For Information Technology D: Systems that support a multitude of independent security domains in which an individual security policy domains consti- tutes a major problem. While security policies are capable of controlling the applications

KĂĽhnhauser, Winfried

388

Scalable Techniques for Anomaly Detection  

E-Print Network [OSTI]

&C) server. We apply three metrics namely the Kullback-Leibler divergence, the Jaccard Index, and the Edit distance, to different groups of domain names present in Tier-1 ISP DNS traces obtained from South Asia and South America. Our evaluation successfully...

Yadav, Sandeep 1985-

2012-08-20T23:59:59.000Z

389

Innovative Exploration Techniques for Geothermal Assessment at...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration Techniques for Geothermal Assessment at Jemez Pueblo, New Mexico Innovative Exploration...

390

Electro-optic techniques in electron beam diagnostics  

SciTech Connect (OSTI)

Electron accelerators such as laser wakefield accelerators, linear accelerators driving free electron lasers, or femto-sliced synchrotrons, are capable of producing femtosecond-long electron bunches. Single-shot characterization of the temporal charge profile is crucial for operation, optimization, and application of such accelerators. A variety of electro-optic sampling (EOS) techniques exists for the temporal analysis. In EOS, the field profile from the electron bunch (or the field profile from its coherent radiation) will be transferred onto a laser pulse co-propagating through an electro-optic crystal. This paper will address the most common EOS schemes and will list their advantages and limitations. Strong points that all techniques share are the ultra-short time resolution (tens of femtoseconds) and the single-shot capabilities. Besides introducing the theory behind EOS, data from various research groups is presented for each technique.

van Tilborg, Jeroen; Toth, Csaba; Matlis, Nicholas; Plateau, Guillaume; Leemans, Wim

2011-06-17T23:59:59.000Z

391

Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power Basics (The followingDirectLow CarbonOpen1Model | Exploration Technique:

392

Energy Systems Group Annual Report  

E-Print Network [OSTI]

and attracted over 230 attendees. The chairman of the Texas Railroad Commission, Mack Wallace was the keynote speaker and Ralph Lewis, formerly Vice President of Gulf Oil Company, was the luncheon speaker. There were twenty-four technical papers, four tutorial...-eight papers, four tutorial seminars and three discussion groups. Dr. Arthur Rosenfield, program leader at Lawrence Berkeley Laboratory, was the first luncheon speaker and Dr. Albert Bartlett from the University of Colorado was the seond luncheon speaker...

Anand, N. K.; Caton, J.; Heffington, W. M.; O'Neal, D. L.; Somasundaram, S.; Turner, W. D.

1986-01-01T23:59:59.000Z

393

Pollutant Assessments Group Procedures Manual  

SciTech Connect (OSTI)

This procedures manual combines the existing procedures for radiological and chemical assessment of hazardous wastes used by the Pollutant Assessments Group at the time of manuscript completion (October 1, 1990). These procedures will be revised in an ongoing process to incorporate new developments in hazardous waste assessment technology and changes in administrative policy and support procedures. Format inconsistencies will be corrected in subsequent revisions of individual procedures.

Chavarria, D.E.; Davidson, J.R.; Espegren, M.L.; Kearl, P.M.; Knott, R.R.; Pierce, G.A.; Retolaza, C.D.; Smuin, D.R.; Wilson, M.J.; Witt, D.A. (Oak Ridge National Lab., TN (USA)); Conklin, N.G.; Egidi, P.V.; Ertel, D.B.; Foster, D.S.; Krall, B.J.; Meredith, R.L.; Rice, J.A.; Roemer, E.K. (Oak Ridge Associated Universities, Inc., TN (USA))

1991-02-01T23:59:59.000Z

394

Ostwind Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty,Orleans County, Vermont: EnergyThis articleOslo,Ostwind Group Jump

395

Copisa Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentratingRenewable Solutions LLC Jump to:Information New YorkGeothermalCoorsCopisa Group

396

Ralos Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, search RAPIDColoradosource HistoryRaft River0422° LoadingRalos Group Jump

397

Anel Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORT Americium/Curium VitrificationAltensol Jump to:AmbientAWEAAnel Group

398

CCSM Polar Climate Working Group Meeting 1920 February 2009  

E-Print Network [OSTI]

Project at Los Alamos, and the Los Alamos/University of California Institute of Geophysics and Planetary. A shortening snow season enhances soil warming due to increased solar absorption whereas a shallowing snowpack comparatively less impact due to satu- ration of snow insulative capacity at deeper snow depths. Snow depth

399

PROGRAMME GROUP RESEARCH UPDATE: Biodiversity indicators &  

E-Print Network [OSTI]

1 PROGRAMME GROUP RESEARCH UPDATE: Biodiversity indicators & knowledge management programme group Introduction Duncan Ray The programme group Biodiversity Indicators and Knowledge Management (BIKM) was established by the merger of the Biodiversity Indicators & Evaluation Programme and the Decision Support

400

Fermilab | Employee Advisory Group | Employee Advisory Group Members  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000 Rev.Group Members Sabina Aponte, PPD

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

TEC Working Group Topic Groups | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy StrainClient update resolve008 HighDepartmentTopic Groups TEC

402

Nick Wright Named Advanced Technologies Group Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Nick Wright Named Advanced Technologies Group Lead Nick Wright Named Advanced Technologies Group Lead February 4, 2013 Nick Nick Wright has been named head of the National Energy...

403

NERSC seeks Computational Systems Group Lead  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

seeks Computational Systems Group Lead NERSC seeks Computational Systems Group Lead January 6, 2011 by Katie Antypas Note: This position is now closed. The Computational Systems...

404

Downhole Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump to:52c8ff988c1DeringDolgeville,Massachusetts: EnergyKokamDownhole Techniques

405

Water information bulletin No. 30: geothermal investigations in Idaho. Part 11. Geological, hydrological, geochemical and geophysical investigations of the Nampa-Caldwell and adjacent areas, southwestern Idaho  

SciTech Connect (OSTI)

The area under study included approximately 925 sq km (357 sq mi) of the Nampa-Caldwell portion of Canyon County, an area within the central portion of the western Snake River Plain immediately west of Boise, Idaho. Geologic mapping, hydrologic, geochemical, geophysical, including detailed gravity and aeromagnetic surveys, were run to acquire needed data. In addition, existing magnetotelluric and reflection seismic data were purchased and reinterpreted in light of newly acquired data.

Mitchell, J.C. (ed.)

1981-12-01T23:59:59.000Z

406

Communications and Media Relations Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and UserofProtein structureAnalysisDOE-IDCommunications and

407

Noribachi Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoading map...(Utility Company) Jump to:City) JumpOpenJV JumpTectonicNoribachi Group Jump to:

408

ESV Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classified as ASHRAEDuvalJusticeEPS Corp JumpESV Group Jump to:

409

Velankani Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov PtyInformation UCOpen EnergyVelankani Group Jump to: navigation, search Name:

410

ASD Groups | Advanced Photon Source  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre the Effects of GlobalASCR User Facilities UserASD Groups

411

Angeleno Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300Algoil JumpAltergyExperiments | OpenTheInformationAngeleno Group Jump to:

412

Arakaki Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300AlgoilEnergy Information theDevelopment Co. Place:Aquilla,Arakaki Group

413

David Turner! User Services Group  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData Files Data Files 1 EIA BestDavidNERSC FileUser Services Group

414

Tecate Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-gTaguspark Jump to: navigation, searchTecate Group Jump to: navigation,

415

Verdeo Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt Lake City, Utah Zip:ScaleVegetationVerdeo Group Jump to:

416

Noble Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico: EnergyMithunCenterInformationNexxus(CTIChateaugay WindInGroup

417

APS ASD Diagnostics Group Homepage  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience4AJ01) (See95TI07)Operations2AP-XPS Measures MIEC5Diagnostics Group

418

Richway Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia Blue RidgeUniversity of California,Richmond is aRichway Group

419

Enerbio Group | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address:011-DNA Jump37. It is classifiedProject)EnerVault Corporation Jump to:Enerbio Group Jump

420

Integration of advanced geoscience and engineering techniques to quantify interwell heterogeneity in reservoir models. Annual report, September 29, 1994--September 30, 1995  

SciTech Connect (OSTI)

The purpose of this project is to conduct a variety of laboratory and field tests and utilize all the geological, geophysical, and engineering information to develop a mathematical model of the reservoir by the use of global optimization methods. This interdisciplinary effort will integrate advanced geoscience and reservoir engineering concepts to quantify interwell reservoir heterogeneity and the dynamics of fluid-rock and fluid-fluid interactions. The reservoir characterization includes geological methods (outcrop and reservoir rock studies), geophysical methods (interwell acoustic techniques), and other reservoir/hydrologic methodologies including analyses of pressure transient data, core studies, and tracer tests. The field testing is being conducted at the Sulimar Queen Unit with related laboratory testing at the PRRC on samples from the Sulimar site and Queen sandstone outcrops. The aim is to (1) characterize and quantify lithologic heterogeneity, (2) mathematically quantify changes in the heterogeneity at various scales, (3) integrate the wide variety of data into a model that is jointly constrained by the interdisciplinary interpretive effort, and (4) help optimize petroleum recovery efficiencies.

Martin, F.D.; Buckley, J.S.; Weiss, W.W.; Ouenes, A.

1996-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Compensation Techniques in Accelerator Physics  

SciTech Connect (OSTI)

Accelerator physics is one of the most diverse multidisciplinary fields of physics, wherein the dynamics of particle beams is studied. It takes more than the understanding of basic electromagnetic interactions to be able to predict the beam dynamics, and to be able to develop new techniques to produce, maintain, and deliver high quality beams for different applications. In this work, some basic theory regarding particle beam dynamics in accelerators will be presented. This basic theory, along with applying state of the art techniques in beam dynamics will be used in this dissertation to study and solve accelerator physics problems. Two problems involving compensation are studied in the context of the MEIC (Medium Energy Electron Ion Collider) project at Jefferson Laboratory. Several chromaticity (the energy dependence of the particle tune) compensation methods are evaluated numerically and deployed in a figure eight ring designed for the electrons in the collider. Furthermore, transverse coupling optics have been developed to compensate the coupling introduced by the spin rotators in the MEIC electron ring design.

Hisham Kamal Sayed

2011-05-31T23:59:59.000Z

422

Use of integrated geologic and geophysical information for characterizing the structure of fracture systems at the US/BK Site, Grimsel Laboratory, Switzerland  

SciTech Connect (OSTI)

Fracture systems form the primary fluid flow paths in a number of rock types, including some of those being considered for high level nuclear waste repositories. In some cases, flow along fractures must be modeled explicitly as part of a site characterization effort. Fractures commonly are concentrated in fracture zones, and even where fractures are seemingly ubiquitous, the hydrology of a site can be dominated by a few discrete fracture zones. We have implemented a site characterization methodology that combines information gained from geophysical and geologic investigations. The general philosophy is to identify and locate the major fracture zones, and then to characterize their systematics. Characterizing the systematics means establishing the essential and recurring patterns in which fractures are organized within the zones. We make a concerted effort to use information on the systematics of the fracture systems to link the site-specific geologic, borehole and geophysical information. This report illustrates how geologic and geophysical information on geologic heterogeneities can be integrated to guide the development of hydrologic models. The report focuses on fractures, a particularly common type of geologic heterogeneity. However, many aspects of the methodology we present can be applied to other geologic heterogeneities as well. 57 refs., 40 figs., 1 tab.

Martel, S.J.; Peterson, J.E. Jr. (Lawrence Berkeley Lab., CA (USA))

1990-05-01T23:59:59.000Z

423

Using ground based geophysics to evaluate hydrogeologic effects of subsurface drip irrigation systems used to manage produced water in the Powder River Basin, Wyoming  

SciTech Connect (OSTI)

The U.S Department of Energy’s National Energy Technology Laboratory has been evaluating various geophysical methods for site characterization regarding environmental issues associated with fossil fuels including produced water management. A relatively new method of managing produced water from coal bed natural gas production is through subsurface drip irrigation. This system involves disposing the produced water near the bottom of the root zone in agricultural fields, which would provide a beneficial use of this resource. The focus of this paper is to present results from a pre-injection geophysical survey for site assessment and background data. A pre-construction survey of approximately 1.2 km2 was completed in June 2007 using a Geophex GEM-2 broadband sensor over six fields along the Powder River floodplain. Quality assurance measures included drift checks, duplicate line surveys, and repeat field surveys using the Geometrics OhmMapper instrument. Subsequent surveys will be completed once the system is installed and operational. Geophysical inversion models were completed to provide a detailed cross-section of the subsurface geoelectrical structure along each line. Preliminary interpretations reveal that the subsurface conductivity distribution correlates to geomorphologic features.

Sams, J.I.; Lipinski, B.A.; Veloski, G.A.

2008-04-01T23:59:59.000Z

424

Johnson Research Group University of New Hampshire  

E-Print Network [OSTI]

group at Boston University. http://sites.bu.edu/porcogrp/ #12;Microwave Flash Pyrolysis: Making Reactive

New Hampshire, University of

425

Exascale Hardware Architectures Working Group  

SciTech Connect (OSTI)

The ASC Exascale Hardware Architecture working group is challenged to provide input on the following areas impacting the future use and usability of potential exascale computer systems: processor, memory, and interconnect architectures, as well as the power and resilience of these systems. Going forward, there are many challenging issues that will need to be addressed. First, power constraints in processor technologies will lead to steady increases in parallelism within a socket. Additionally, all cores may not be fully independent nor fully general purpose. Second, there is a clear trend toward less balanced machines, in terms of compute capability compared to memory and interconnect performance. In order to mitigate the memory issues, memory technologies will introduce 3D stacking, eventually moving on-socket and likely on-die, providing greatly increased bandwidth but unfortunately also likely providing smaller memory capacity per core. Off-socket memory, possibly in the form of non-volatile memory, will create a complex memory hierarchy. Third, communication energy will dominate the energy required to compute, such that interconnect power and bandwidth will have a significant impact. All of the above changes are driven by the need for greatly increased energy efficiency, as current technology will prove unsuitable for exascale, due to unsustainable power requirements of such a system. These changes will have the most significant impact on programming models and algorithms, but they will be felt across all layers of the machine. There is clear need to engage all ASC working groups in planning for how to deal with technological changes of this magnitude. The primary function of the Hardware Architecture Working Group is to facilitate codesign with hardware vendors to ensure future exascale platforms are capable of efficiently supporting the ASC applications, which in turn need to meet the mission needs of the NNSA Stockpile Stewardship Program. This issue is relatively immediate, as there is only a small window of opportunity to influence hardware design for 2018 machines. Given the short timeline a firm co-design methodology with vendors is of prime importance.

Hemmert, S; Ang, J; Chiang, P; Carnes, B; Doerfler, D; Leininger, M; Dosanjh, S; Fields, P; Koch, K; Laros, J; Noe, J; Quinn, T; Torrellas, J; Vetter, J; Wampler, C; White, A

2011-03-15T23:59:59.000Z

426

Subranging technique using superconducting technology  

DOE Patents [OSTI]

Subranging techniques using "digital SQUIDs" are used to design systems with large dynamic range, high resolution and large bandwidth. Analog-to-digital converters (ADCs) embodying the invention include a first SQUID based "coarse" resolution circuit and a second SQUID based "fine" resolution circuit to convert an analog input signal into "coarse" and "fine" digital signals for subsequent processing. In one embodiment, an ADC includes circuitry for supplying an analog input signal to an input coil having at least a first inductive section and a second inductive section. A first superconducting quantum interference device (SQUID) is coupled to the first inductive section and a second SQUID is coupled to the second inductive section. The first SQUID is designed to produce "coarse" (large amplitude, low resolution) output signals and the second SQUID is designed to produce "fine" (low amplitude, high resolution) output signals in response to the analog input signals.

Gupta, Deepnarayan (Hawthorne, NY)

2003-01-01T23:59:59.000Z

427

Renormalization group aspects of graphene  

E-Print Network [OSTI]

Graphene is a two dimensional crystal of carbon atoms with fascinating electronic and morphological properties. The low energy excitations of the neutral, clean system are described by a massless Dirac Hamiltonian in (2+1) dimensions which also captures the main electronic and transport properties. A renormalization group analysis sheds light on the success of the free model: due to the special form of the Fermi surface which reduces to two single points in momentum space, short range interactions are irrelevant and only gauge interactions like long range Coulomb or effective disorder can play a role in the low energy physics. We review these features and discuss briefly other aspects related to disorder and to the bilayer material along the same lines.

Maria A. H. Vozmediano

2010-10-25T23:59:59.000Z

428

Geothermal resources of the western arm of the Black Rock Desert, northwestern Nevada. Part I. Geology and geophysics  

SciTech Connect (OSTI)

Studies of the geothermal potential of the western arm of the Black Rock Desert in northwestern Nevada included a compilation of existing geologic data on a detailed map, a temperature survey at 1-meter depth, a thermal-scanner survey, and gravity and seismic surveys to determine basin geometry. The temperature survey showed the effects of heating at shallow depths due to rising geothermal fluids near the known hot spring areas. Lower temperatures were noted in areas of probable near-surface ground-water movement. The thermal-scanner survey verified the known geothermal areas and showed relatively high-temperature areas of standing water and ground-water discharge. The upland areas of the desert were found to be distinctly warmer than the playa area, probably due to the low thermal diffusivity of upland areas caused by low moisture content. Surface geophysical surveys indicated that the maximum thickness of valley-fill deposits in the desert is about 3200 meters. Gravity data further showed that changes in the trend of the desert axis occurred near thermal areas. 53 refs., 8 figs., 3 tabs.

Schaefer, D.H.; Welch, A.H.; Maurer, D.K.

1983-01-01T23:59:59.000Z

429

Modeling techniques for simulating well behavior  

E-Print Network [OSTI]

This thesis is a catalog of modeling techniques useful in simulating well behavior in certain types of reservoirs that are often encountered in petroleum reservoirs. Emphasis has been placed on techniques that can be used with any conventional...

Rattu, Bungen Christina

2002-01-01T23:59:59.000Z

430

Stratigraphy and depositional environments of Cherokee group (Desmoinesian, middle Pennsylvanian), Central Cherokee basin, southeast Kansas  

SciTech Connect (OSTI)

Correlation from geophysical well logs of radioactive black shales, which extend throughout the basin and into the Sedgwick and Forest City basins, provided the basis for division of the Cherokee Group into 11 stratigraphic intervals. Black shale units below the Fort Scott Limestone and Verdigris Limestone, and above the Tebo coal are the most extensive and easily recognizable markers. The Tebo marker might be considered as a possible boundary between the Krebs and Cabaniss Formations owing to lateral extensiveness, mappability, and stratigraphic location near a distinct lithologic change. Cross sections indicate that the basin subsided during deposition of the Krebs Formation. Stratigraphic intervals in the overlying Cabaniss formation are relatively uniform in thickness, suggesting little or no subsidence during deposition. Onlap upon the Nemaha ridge occurred during Krebs and much of Cabaniss deposition. Stratigraphic markers that overlap the ridge and extend into the Sedgwick basin indicate one depositional province. Core, well-log, and well-sample studies show that lithologic characteristics within the basin appear similar to outcrop features. Basin strata are dominated by shales and sandstones with interbedded coals and thin limestones. Net-sandstone isolith maps reveal the presence of a deltaic complex characterized by both stacking and offset of major sandstone bodies. The amount of limestone significantly increases along the eastern flank of the Nemaha ridge.

Staton, M.D.; Brady, L.L.; Walton, A.W.

1987-08-01T23:59:59.000Z

431

Properties of Group Five and Group Seven transactinium elements  

SciTech Connect (OSTI)

The detection and positive identification of the short-lived, low cross section isotopes used in the chemical studies of the heaviest elements are usually accomplished by measuring their alpha-decay, thus the nuclear properties of the heaviest elements must be examined simultaneously with their chemical properties. The isotopes 224 Pa and 266,267 Bh have been studied extensively as an integral part of the investigation of the heaviest members of the groups five and seven of the periodic table. The half-life of 224 Pa was determined to be 855 plus/minus19 ms by measuring its alpha-decay using our rotating wheel, solid state detector system at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. Protactinium was produced by bombardment of a bismuth target. New neutron rich isotopes, 267 Bh and 266 Bh, were produced in bombardments of a 249 Bk target and their decay was observed using the rotating wheel system. The 266 Bh that was produced decays with a half-life of approximately 1 s by emission of alpha particles with an average energy of 9.25 plus/minus 0.03 MeV. 267 Bh was observed to decay with a 17 s half-life by emission of alpha-particles with an average energy of 8.83 plus/minus 0.03 MeV. The chemical behavior of hafnium, Ha (element 105) was investigated using the fast on-line continuous liquid extraction and detection system SISAK-LISSY. Hafnium was not observed in this experiment following transport and extraction. Protactinium was used as on-line test of the apparatus to determine the experimental efficiency of the entire system. Unfortunately, the amount of protactinium observed after the extraction, compared to the amount produced, was extremely small, only 2.5%. The extraction of the protactinium isotope indicated the efficiency of the apparatus was too low to observe the extraction of hafnium. The chemical behavior of oxychloride compounds of bohrium was investigated by isothermal gas adsorption chromatography in a quartz column at 180, 150, and 75 C. It was found to be less volatile than the corresponding compounds of the lighter group seven homologues, rhenium and technetium, which had been measured previously with the same apparatus. Assuming the bohrium compound to be BhO3Cl, the evaluated standard adsorption enthalpy, and delta-Hads, of BhO3Cl on the quartz surface was calculated from Monte Carlo fits to the volatility data to be -75 kJ/mol. The adsorption enthalpies for TcO3Cl and ReO3Cl are -51 and -61 kJ/mol respectively.

Wilk, Philip A.

2001-05-01T23:59:59.000Z

432

ARPEFS as an analytic technique  

SciTech Connect (OSTI)

Two modifications to the ARPEFS technique are introduced. These are studied using p(2 {times} 2)S/Cu(001) as a model system. The first modification is the obtaining of ARPEFS {chi}(k) curves at temperatures as low as our equipment will permit. While adding to the difficulty of the experiment, this modification is shown to almost double the signal-to-noise ratio of normal emission p(2 {times} 2)S/Cu(001) {chi}(k) curves. This is shown by visual comparison of the raw data and by the improved precision of the extracted structural parameters. The second change is the replacement of manual fitting of the Fourier filtered {chi}(k) curves by the use of the simplex algorithm for parameter determination. Again using p(2 {times} 2)S/Cu(001) data, this is shown to result in better agreement between experimental {chi}(k) curves and curves calculated based on model structures. The improved ARPEFS is then applied to p(2 {times} 2)S/Ni(111) and ({radical}3 {times} {radical}3) R30{degree}S/Ni(111). For p(2 {times} 2)S/Cu(001) we find a S-Cu bond length of 2.26 {Angstrom}, with the S adatom 1.31 {Angstrom} above the fourfold hollow site. The second Cu layer appears to be corrugated. Analysis of the p(2 {times} 2)S/Ni(111) data indicates that the S adatom adatom adsorbs onto the FCC threefold hollow site 1.53 {Angstrom} above the Ni surface. The S-Ni bond length is determined to be 2.13 {Angstrom}, indicating an outwards shift of the first layer Ni atoms. We are unable to assign a unique structure to ({radical}3 {times} {radical}3)R30{degree}S/Ni(111). An analysis of the strengths and weaknesses of ARPEFS as an experimental and analytic technique is presented, along with a summary of problems still to be addressed.

Schach von Wittenau, A.E.

1991-04-01T23:59:59.000Z

433

Best practice techniques for environmental radiological monitoring  

E-Print Network [OSTI]

Best practice techniques for environmental radiological monitoring Science Report ­ SC030308/SR SCHO0407BMNL-E-P #12;ii Science Report Best Practice Techniques for Environmental Radiological #12;iv Science Report Best Practice Techniques for Environmental Radiological Monitoring Executive

434

Current distribution in systems with anomalous diffusion: renormalisation group approach  

E-Print Network [OSTI]

We investigate the asymptotic properties of the large deviation function of the integrated particle current in systems, in or out of thermal equilibrium, whose dynamics exhibits anomalous diffusion. The physical systems covered by our study include mutually repelling particles with a drift, a driven lattice gas displaying a continuous nonequilibrium phase transition, and particles diffusing in a anisotropic random advective field. It is exemplified how renormalisation group techniques allow for a systematic determination of power laws in the corresponding current large deviation functions. We show that the latter are governed by known universal scaling exponents, specifically, the anomalous dimension of the noise correlators.

Vivien Lecomte; Uwe C. Tauber; Frederic van Wijland

2007-02-01T23:59:59.000Z

435

Abstract Error Groups Via Jones Unitary Braid Group Representations at q=i  

E-Print Network [OSTI]

In this paper, we classify a type of abstract groups by the central products of dihedral groups and quaternion groups. We recognize them as abstract error groups which are often not isomorphic to the Pauli groups in the literature. We show the corresponding nice error bases equivalent to the Pauli error bases modulo phase factors. The extension of these abstract groups by the symmetric group are finite images of the Jones unitary representations (or modulo a phase factor) of the braid group at q=i or r=4. We hope this work can finally lead to new families of quantum error correction codes via the representation theory of the braid group.

Yong Zhang

2009-02-02T23:59:59.000Z

436

Contributory Group Key Agreement Protocols, Revisited for Mobile Ad-Hoc Groups  

E-Print Network [OSTI]

Contributory Group Key Agreement Protocols, Revisited for Mobile Ad-Hoc Groups Mark Manulis Horst of various group-oriented applications for mo- bile ad-hoc groups requires a group secret shared between all- and wide-area wired networks, can also be used in ad-hoc sce- narios because of the similar security

Manulis, Mark

437

Methods for improved growth of group III nitride buffer layers  

DOE Patents [OSTI]

Methods are disclosed for growing high crystal quality group III-nitride epitaxial layers with advanced multiple buffer layer techniques. In an embodiment, a method includes forming group III-nitride buffer layers that contain aluminum on suitable substrate in a processing chamber of a hydride vapor phase epitaxy processing system. A hydrogen halide or halogen gas is flowing into the growth zone during deposition of buffer layers to suppress homogeneous particle formation. Some combinations of low temperature buffers that contain aluminum (e.g., AlN, AlGaN) and high temperature buffers that contain aluminum (e.g., AlN, AlGaN) may be used to improve crystal quality and morphology of subsequently grown group III-nitride epitaxial layers. The buffer may be deposited on the substrate, or on the surface of another buffer. The additional buffer layers may be added as interlayers in group III-nitride layers (e.g., GaN, AlGaN, AlN).

Melnik, Yurity; Chen, Lu; Kojiri, Hidehiro

2014-07-15T23:59:59.000Z

438

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department version of the above Hall-Littlewood functions, as a generalization of Macdonald functions associated to symmetric groups. A generalization of Macdonald operators is also constructed, and we characterize

Shoj, Toshiaki

439

Stratigraphic statistical curvature analysis techniques  

SciTech Connect (OSTI)

SCAT applies statistical techniques to dipmeter data to identify patterns of bulk curvature, determine transverse and longitudinal structural directions, and reconstruct cross sections and contour maps. STRAT-SCAT applies the same concepts to geometric interpretation of multistoried unimodal, bimodal, or trough-type cross-bedding and also to seismic stratigraphy-scale stratigraphic structures. Structural dip, which comprises the bulk of dipmeter data, is related to beds that (statistically) were deposited with horizontal attitudes; stratigraphic dip is related to beds that were deposited with preferentially oriented nonhorizontal attitudes or to beds that assumed such attitudes because of differential compaction. Stratigraphic dip generates local zones of departure from structural dip on special SCAT plots. The RMS (root-mean-square) of apparent structural dip is greatest in the (structural) T-direction and least in the perpendicular L-direction; the RMS of stratigraphic dip (measured with respect to structural dip) is greatest in the stratigraphic T*-direction and least in the stratigraphic L*-direction. Multistoried, cross-bedding appears on T*-plots as local zones of either greater scatter or statistically significant departure of stratigraphic median dip from structural dip. In contrast, the L*-plot (except for trough-type cross-bedding) is sensitive to cross-bedding. Seismic stratigraphy-scale depositional sequences are identified on Mercator dip versus azimuth plots and polar tangent plots as secondary cylindrical-fold patterns imposed on global structural patterns. Progradational sequences generate local cycloid-type patterns on T*-plots, and compactional sequences generate local cycloid-type patterns on T*-plots, and compactional sequences generate local half-cusp patterns. Both features, however, show only structural dip on L*-plots.

Bengtson, C.A.; Ziagos, J.P.

1987-05-01T23:59:59.000Z

440

Program Building Committee's Central Planning Group.  

E-Print Network [OSTI]

Tooe ZTA245.7 8873 Y)O./3~ The Texas A&M (stem r ultural ~ion ~ervrce Damet C Plannstlel. Director College Stallon Program Building Committee's CENTRAL PLANNING GROUP 8-1344 Authors: Burl B. Richardson , Extension Program Specialist... and Mary G. Marshall, Extension Program Specialist Program -Building Committee's CENTRAL PLANNING GROUP This leaflet describes the role of the central planning group in the program development process_ The central planning group is the highest...

Richardson, Burl B.; Marshall, Mary G.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Agenda: High Temperature Membrane Working Group Meeting  

Broader source: Energy.gov [DOE]

Agenda for the High Temperature Membrane Working Group (HTMWG) meeting on May 18, 2009, in Arlington, Virginia

442

Group Study Room Policy and Reservation Form  

E-Print Network [OSTI]

to the Group Study Reservation Form. Fill out the web form and click "Send" to submit the request. A confirming

Reynolds, Albert C.

443

Factor groups, semidirect product and quantum chemistry  

E-Print Network [OSTI]

In this paper we prove some general theorems about representations of finite groups arising from the inner semidirect product of groups. We show how these results can be used for standard applications of group theory in quantum chemistry through the orthogonality relations for the characters of irreducible representations. In this context, conditions for transitions between energy levels, projection operators and basis functions were determined. This approach applies to composite systems and it is illustrated by the dihedral group related to glycolate oxidase enzyme.

Marco A. S. Trindade

2014-02-14T23:59:59.000Z

444

UCIME Group Meeting January 18, 2001  

E-Print Network [OSTI]

a presentation of SCOPE to the Flowers Growers Association in Carpinteria to a very interested and lively group

Clarke, Keith

445

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan Abstract. Green functions of classical groups this, we define Green functions associated to complex reflection groups G(e, 1, n), and study

Shoj, Toshiaki

446

Advisor Resourcesi Advisor-Group Dynamic  

E-Print Network [OSTI]

Advisor Resourcesi Advisor- Group Dynamic A Mutually Beneficial Relationship Exists Between an Organization and its Advisor An advisor provides the group with: · A "sounding board", someone with whom or perspective · Easy access to campus connections The group provides the advisor with: · A unique opportunity

Sherrill, David

447

Group Blind Digital Signatures: Theory and Applications  

E-Print Network [OSTI]

Group Blind Digital Signatures: Theory and Applications by Zul kar Amin Ramzan Submitted Committee on Graduate Students #12;Group Blind Digital Signatures: Theory and Applications by Zul kar Amin Blind Digital Signature. This construct combines the already existing notions of a Group Digital

Goldwasser, Shafi

448

Group Blind Digital Signatures: Theory and Applications  

E-Print Network [OSTI]

Group Blind Digital Signatures: Theory and Applications by Zulfikar Amin Ramzan Submitted by . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Arthur C. Smith Chairman, Departmental Committee on Graduate Students #12; Group Blind Digital Signatures cryptographic construct called a Group Blind Digital Signature. This construct combines the already existing

Goldwasser, Shafi

449

Computer Graphics Group Leif KobbeltAACHEN  

E-Print Network [OSTI]

Computer Graphics Group Leif KobbeltAACHEN Computer Graphics Leif Kobbelt Computer Graphics Group Leif KobbeltAACHEN Public Perception of CG · Games · Movies Computer Graphics Group Leif KobbeltAACHEN Computer Graphics Research · fundamental algorithms & data structures - continuous & discrete mathematics

Kobbelt, Leif

450

VERIFICATION OF A NUMERICAL SIMULATION TECHNIQUE FOR NATURAL CONVECTION  

E-Print Network [OSTI]

on advanced passive cooling techniques. Systems Analysis andand fabrica- tion techniques. Cooling Systems Research. This

Gadgil, A.

2008-01-01T23:59:59.000Z

451

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group Lead  

E-Print Network [OSTI]

Sustainability Peer Educator Group Lead Positions Position: Sustainability Peer Educators Group times) Term of position: September 2013 ­ April 2014 Position Summary: Working with the Sustainability Project Coordinator, the Sustainability Peer Educator Group Leads will be responsible

Boonstra, Rudy

452

Utility Variable Generation Integration Group Fall O&M User Group...  

Broader source: Energy.gov (indexed) [DOE]

O&M User Group Meeting Utility Variable Generation Integration Group Fall O&M User Group Meeting October 1, 2014 7:00AM CDT to October 2, 2014 3:00PM CDT The Utility Variable...

453

Solid State Electron Transfer via Bacterial Nanowires: Contributions Toward a Mechanistic Understanding of Geophysical Response of Biostimulated Subsurface  

SciTech Connect (OSTI)

The degradation of organic matter by microorganisms provides a source of electrical potential or so-called 'self potential' (SP) that can be measured by using a voltmeter. During this process electrons are being produced as a waste-product and bacterial cells have to dispose of these to allow for the complete biodegradation of organic matter. Especially in anaerobic microbial communities, exo-cellular electron transfer is the most important driving force behind this process and organisms have developed different, but also similar, ways to transfer electrons to other microorganisms. Recently, it has been postulated that direct electron transfer from cell-to-cell is actually done by 'hard-wired' microorganisms. This shuttling of electrons is most likely done by certain c-type cytochromes that form the functional part of electrically conductive nanowires. In this study we investigated if nanowires can explain the geoelectrical (self potential and spectral induced polarization) signals observed at some biostimulated environments such as DOE sites. The objectives of our project are to: (1) investigate any temporal changes in the geophysical signatures (Self Potential (SP) and Induced Polarization (IP)) associated with nanowires of the bacterium Shewanella oneidensis MR-1, wild type and mtrc/omcA deletion mutant, (2) demonstrate that mutant strains of bacteria that produce nonconductive nanowires do not contribute to geoelectrical responses. We accomplished the following: (1) Provided training to students and a postdoctoral fellow that worked on the project, (2) Conducted several SP & IP measurements correlating the distribution of nanowires and SIP/SP signals in partial fulfillment of object No. 1 and 2. On the following we will report and discuss the results of our last experiment with some emphasis on the source mechanisms of both SP and IP associated with Shewanella oneidensis MR-1, wild type in sand columns.

Estella Atekwana

2012-05-08T23:59:59.000Z

454

Integration of advanced geoscience and engineering techniques to quantify interwell heterogeneity in reservoir models. Final report, September 29, 1993--September 30, 1996  

SciTech Connect (OSTI)

The goal of this three-year project was to provide a quantitative definition of reservoir heterogeneity. This objective was accomplished through the integration of geologic, geophysical, and engineering databases into a multi-disciplinary understanding of reservoir architecture and associated fluid-rock and fluid-fluid interactions. This interdisciplinary effort integrated geological and geophysical data with engineering and petrophysical results through reservoir simulation to quantify reservoir architecture and the dynamics of fluid-rock and fluid-fluid interactions. An improved reservoir description allows greater accuracy and confidence during simulation and modeling as steps toward gaining greater recovery efficiency from existing reservoirs. A field laboratory, the Sulimar Queen Unit, was available for the field research. Several members of the PRRC staff participated in the development of improved reservoir description by integration of the field and laboratory data as well as in the development of quantitative reservoir models to aid performance predictions. Subcontractors from Stanford University and the University of Texas at Austin (UT) collaborated in the research and participated in the design and interpretation of field tests. The three-year project was initiated in September 1993 and led to the development and application of various reservoir description methodologies. A new approach for visualizing production data graphically was developed and implemented on the Internet. Using production data and old gamma rays logs, a black oil reservoir model that honors both primary and secondary performance was developed. The old gamma ray logs were used after applying a resealing technique, which was crucial for the success of the project. In addition to the gamma ray logs, the development of the reservoir model benefitted from an inverse Drill Stem Test (DST) technique which provided initial estimates of the reservoir permeability at different wells.

Weiss, W.W.; Buckley, J.S.; Ouenes, A.

1997-05-01T23:59:59.000Z

455

Finding Hidden Geothermal Resources in the Basin and Range Using Electrical Survey Techniques: A Computational Feasibility Study  

SciTech Connect (OSTI)

For many years, there has been speculation about "hidden" or "blind" geothermal systems—reservoirs that lack an obvious overlying surface fluid outlet. At present, it is simply not known whether "hidden" geothermal reservoirs are rare or common. An approach to identifying promising drilling targets using methods that are cheaper than drilling is needed. These methods should be regarded as reconnaissance tools, whose primary purpose is to locate high-probability targets for subsequent deep confirmation drilling. The purpose of this study was to appraise the feasibility of finding "hidden" geothermal reservoirs in the Basin and Range using electrical survey techniques, and of adequately locating promising targets for deep exploratory drilling based on the survey results. The approach was purely theoretical. A geothermal reservoir simulator was used to carry out a lengthy calculation of the evolution of a synthetic but generic Great Basin-type geothermal reservoir to a quasi-steady "natural state". Postprocessors were used to try to estimate what a suite of geophysical surveys of the prospect would see. Based on these results, the different survey techniques were compared and evaluated in terms of their ability to identify suitable drilling targets. This process was completed for eight different "reservoir models". Of the eight cases considered, four were "hidden" systems, so that the survey techniques could be appraised in terms of their ability to detect and characterize such resources and to distinguish them from more conventionally situated geothermal reservoirs. It is concluded that the best way to find "hidden" basin and range geothermal resources of this general type is to carry out simultaneous SP and low-frequency MT surveys, and then to combine the results of both surveys with other pertinent information using mathematical "inversion" techniques to characterize the subsurface quantitatively. Many such surveys and accompanying analyses can be carried out for the cost of a single unsuccessful deep "discovery well".

J. W. Pritchett; not used on publication

2004-12-01T23:59:59.000Z

456

Efficient Algorithmic Techniques for Several Multidimensional ...  

E-Print Network [OSTI]

Politehnica University of Bucharest, Romania, mugurel.andreica@cs.pub.ro. Abstract: In this paper I present several novel, efficient, algorithmic techniques for.

Mugurel

2008-10-23T23:59:59.000Z

457

Eddy current technique for predicting burst pressure  

DOE Patents [OSTI]

A signal processing technique which correlates eddy current inspection data from a tube having a critical tubing defect with a range of predicted burst pressures for the tube is provided. The method can directly correlate the raw eddy current inspection data representing the critical tubing defect with the range of burst pressures using a regression technique, preferably an artificial neural network. Alternatively, the technique deconvolves the raw eddy current inspection data into a set of undistorted signals, each of which represents a separate defect of the tube. The undistorted defect signal which represents the critical tubing defect is related to a range of burst pressures utilizing a regression technique.

Petri, Mark C. (Yorkville, IL); Kupperman, David S. (Oak Park, IL); Morman, James A. (Woodridge, IL); Reifman, Jaques (Western Springs, IL); Wei, Thomas Y. C. (Downers Grove, IL)

2003-01-01T23:59:59.000Z

458

Uncertainty Quantification Techniques for Sensor Calibration...  

Office of Scientific and Technical Information (OSTI)

Uncertainty Quantification Techniques for Sensor Calibration Monitoring in Nuclear Power Plants Re-direct Destination: This report describes research towards the development of...

459

Computer vision techniques for underwater navigation  

E-Print Network [OSTI]

DCS) Chapter 2 Computer Vision . . 2.1 Labeling . . . . 2.2OF CALIFORNIA, SAN DIEGO Computer Vision Techniques fordegree Master of Science in Computer Science by Christopher

Barngrover, Christopher M.

2010-01-01T23:59:59.000Z

460

Uncertainty Quantification Techniques for Sensor Calibration...  

Office of Scientific and Technical Information (OSTI)

Uncertainty Quantification Techniques for Sensor Calibration Monitoring in Nuclear Power Plants Re-direct Destination: Temp Data Fields Ramuhalli, Pradeep; Lin, Guang; Crawford,...

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Airborne electromagnetic surveys as a reconnaissance technique...  

Open Energy Info (EERE)

Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Abstract INPUT airborne electromagnetic (AEM) surveys were conducted during 1979 in five...

462

Optimization Online - Smoothing techniques for solving semidefinite ...  

E-Print Network [OSTI]

Oct 5, 2009 ... Smoothing techniques for solving semidefinite programs with many constraints. Michael B rgisser(michael.buergisser ***at*** ifor.math.ethz.ch)

Michael B rgisser

2009-10-05T23:59:59.000Z

463

INVERTIBLE AND NILPOTENT ELEMENTS IN THE GROUP ALGEBRA OF A UNIQUE PRODUCT GROUP  

E-Print Network [OSTI]

INVERTIBLE AND NILPOTENT ELEMENTS IN THE GROUP ALGEBRA OF A UNIQUE PRODUCT GROUP ERHARD NEHER Abstract. We describe the nilpotent and invertible elements in group alge- bras k[G] for k a commutative. A fundamental problem in the theory of group algebras is to determine their units = invertible elements

Neher, Erhard

464

Population Biology Graduate Group Bylaws of the Population Biology Graduate Group  

E-Print Network [OSTI]

Population Biology Graduate Group Bylaws of the Population Biology Graduate Group Amended and Approved: February 1, 1994 I. Definition of the Graduate Group in Population Biology The purpose of this graduate group is to bring together faculty and graduate students interested in population biology

Wainwright, Peter C.

465

Health Research Groups 2013 Research Group Leaders and Co-leaders are in Bold font  

E-Print Network [OSTI]

Therapy/Medicine Gerdts, Volker Western College of Veterinary Medicine/VIDO #12;Health Research Groups

Saskatchewan, University of

466

Negotiated Assessment Criteria and Peer Assessment in Software Engineering Group Project Work: A Case Study  

E-Print Network [OSTI]

unusually, the Computer Science degrees at UKC also include a group project in the final year been identified by a national project on ``Effective Project work in Computer Science'' (project EPCo best practices in Computer Science student project methods and techniques in order to make existing

Kent, University of

467

White noise analysis on manifolds and the energy representation of a gauge group  

E-Print Network [OSTI]

The energy representation of a gauge group on a Riemannian manifold has been discussed by several authors. Y. Shimada has shown the irreducibility for compact Riemannian manifold, using white noise analysis. In this paper we extend its technique to noncompact Riemannian manifolds which have differential operators satisfying some conditions.

Takahiro Hasebe

2011-01-15T23:59:59.000Z

468

Automatic identification of abstract online groups  

DOE Patents [OSTI]

Online abstract groups, in which members aren't explicitly connected, can be automatically identified by computer-implemented methods. The methods involve harvesting records from social media and extracting content-based and structure-based features from each record. Each record includes a social-media posting and is associated with one or more entities. Each feature is stored on a data storage device and includes a computer-readable representation of an attribute of one or more records. The methods further involve grouping records into record groups according to the features of each record. Further still the methods involve calculating an n-dimensional surface representing each record group and defining an outlier as a record having feature-based distances measured from every n-dimensional surface that exceed a threshold value. Each of the n-dimensional surfaces is described by a footprint that characterizes the respective record group as an online abstract group.

Engel, David W; Gregory, Michelle L; Bell, Eric B; Cowell, Andrew J; Piatt, Andrew W

2014-04-15T23:59:59.000Z

469

USD Catalysis Group for Alternative Energy  

SciTech Connect (OSTI)

The South Dakota Catalysis Group (SDCG) is a collaborative project with mission to develop advanced catalysts for energy conversion with two primary goals: (1) develop photocatalytic systems in which polyfunctionalized TiO2 are the basis for hydrogen/oxygen synthesis from water and sunlight (solar fuels group), (2) develop new materials for hydrogen utilization in fuel cells (fuel cell group). In tandem, these technologies complete a closed chemical cycle with zero emissions.

James D. Hoefelmeyer, Ranjit Koodali, Grigoriy Sereda, Dan Engebretson, Hao Fong, Jan Puszynski, Rajesh Shende, Phil Ahrenkiel

2012-03-13T23:59:59.000Z

470

A practical post-processing technique for real-time block-based coding system  

E-Print Network [OSTI]

1 A practical post-processing technique for real-time block-based coding system Yuk-Hee Chan, Sung to restore the images encoded with block-based compression standards such as JPEG. This method classi es with the reported post-processing methods. Keywords| I. Introduction THE Joint Photographic Experts Group JPEG im

Chan, Chris Y. H.

471

Efficient Techniques of ANN-Based Microwave  

E-Print Network [OSTI]

.g., sintering) MW NDE/NDT Technique Where Used W F CW F CW F CW F C WorkshopWorkshopWorkshopWorkshop #12 in closed systems ­ an attractive technology of NDE/NDT capable of serving many practical needs. W F CW F CW of all the proposed techniques: NDE/NDT of objects in closed systems (resonators or waveguides

Yakovlev, Vadim

472

Opto-electrokinetic manipulation technique for highperformance  

SciTech Connect (OSTI)

This communication first demonstrates bio-compatibility of a recently developed opto-electrokinetic manipulation technique, using microorganisms. Aggregation, patterning, translation, trapping and size-based separation of microorganisms performed with the technique firmly establishes its usefulness for development of a high-performance on-chip bioassay system.

Kwon, Jae-Sung [Purdue University; Ravindranath, Sandeep [Purdue University; Kumar, Aloke [ORNL; Irudayaraj, Joseph [Purdue University; Wereley, Steven T. [Purdue University

2012-01-01T23:59:59.000Z

473

Transportation Protocols Working Group First Conference Call...  

Broader source: Energy.gov (indexed) [DOE]

Call March 1, 1999 Conference Call Summary The first conference call of the Transportation External Coordination Working Group (TECWG) DOE Transportation Protocols Working...

474

Group 3: Humidity, Temperature, and Voltage (Presentation)  

SciTech Connect (OSTI)

Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

Wohlgemuth, J.

2013-05-01T23:59:59.000Z

475

The Spin Holonomy Group In General Relativity  

E-Print Network [OSTI]

It has recently been shown by Goldberg et al that the holonomy group of the chiral spin-connection is preserved under time evolution in vacuum general relativity. Here, the underlying reason for the time-independence of the holonomy group is traced to the self-duality of the curvature 2-form for an Einstein space. This observation reveals that the holonomy group is time-independent not only in vacuum, but also in the presence of a cosmological constant. It also shows that once matter is coupled to gravity, the "conservation of holonomy" is lost. When the fundamental group of space is non-trivial, the holonomy group need not be connected. For each homotopy class of loops, the holonomies comprise a coset of the full holonomy group modulo its connected component. These cosets are also time-independent. All possible holonomy groups that can arise are classified, and examples are given of connections with these holonomy groups. The classification of local and global solutions with given holonomy groups is discussed.

Ted Jacobson; Joseph D. Romano

1992-07-23T23:59:59.000Z

476

Federal Utility Partnership Working Group Utility Partners  

Broader source: Energy.gov [DOE]

Federal Utility Partnership Working Group (FUPWG) utility partners are eager to work closely with Federal agencies to help achieve energy management goals.

477

Federal Utility Partnership Working Group Participants | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

in the Federal Utility Partnership Working Group or engaged in a utility energy service contract project. General Services Administration National Aeronautics and Space...

478

Clark Energy Group ESCO Qualification Sheet  

Broader source: Energy.gov [DOE]

Document outlines the energy service company (ESCO) qualifications for Clark Energy Group in relation to the U.S. Department of Energy's (DOEs) energy savings performance contracts (ESPC).

479

Federal Utility Partnership Working Group Participants  

Broader source: Energy.gov [DOE]

The following Federal agencies have participated in the Federal Utility Partnership Working Group or engaged in a utility energy service contract project.

480

Distributed Energy Systems Integration Group (Fact Sheet)  

SciTech Connect (OSTI)

Factsheet developed to describe the activites of the Distributed Energy Systems Integration Group within NREL's Electricity, Resources, and Buildings Systems Integration center.

Not Available

2009-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "group geophysical techniques" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Convolution type operators on locally compact groups  

E-Print Network [OSTI]

Shtein--~erg, Convolution Type Operators on Locally Compact Groups [in Russian],. Manuscript Deposited in the All-Union Institute of Scientific and Technical ...

482

Plenia Locatel Group: Globalizing from Venezuela  

E-Print Network [OSTI]

In 2009 the founders and top executives of Plenia Locatel Group, a retail business in Venezuela specializing in health care products and services, were planning a global

Gibson, Cyrus

2009-05-01T23:59:59.000Z

483

. . . . . 85 . . . . . International Deep Drawing Research Group  

E-Print Network [OSTI]

. . . . . 85 . . . . . International Deep Drawing Research Group IDDRG 2009 International 20899-855 USA e-mail: mark.iadicola@nist.gov, Web page: www

484

Institut Eurecom1 Institut Eurecom research is partially supported by its industrial members: BMW Group Research & Technology BMW Group  

E-Print Network [OSTI]

: BMW Group Research & Technology ­ BMW Group Company, Bouygues Telecom, Cisco Systems, France Telecom

Gesbert, David

485

RENEWABLE ENERGY GROUPS COVET FUSION'S BUDGET  

E-Print Network [OSTI]

RENEWABLE ENERGY GROUPS COVET FUSION'S BUDGET A group called the Energy Efficiency Education-effective and environmentally sound energy- efficiency and renewable energy programs." Rep. Philip R. Sharp (D-IN) and chair the resolution, H. Con. Res. 188). Sharp said "For too long, cost-effectiveefficiencyand renewable energy

486

Fusion Technology Working Group Presented by  

E-Print Network [OSTI]

Snowmass Fusion Technology Working Group Summary Presented by M. Abdou, S. Milora Snowmass July 23, 1999 #12;Technology Working Group Subgroup # 1 Subgroup # 2 Solid Walls Ulrickson / Mattas Liquid Walls / Ying Chamber Technology Abdou / Ulrickson Heating/CD/Fueling Swain / Temkin Magnets Schultz / Woolley

Abdou, Mohamed

487

1Nanomaterials for Energy Group Byungwoo Park  

E-Print Network [OSTI]

(2011). Advantages of Quantum-Dot-Sensitized Solar Cells #12;8Nanomaterials for Energy Group://bp.snu.ac.kr Cutting-Edge Nanomaterials for Energy: Solar Cell · Li+ Battery #12;2Nanomaterials for Energy Group Fuel Cell Solar Panel Portable Devices Solar Cell Phosphor Li+ Battery #12;4Nanomaterials for Energy

Cho, Jaephil

488

Group 3: Humidity, Temperature and Voltage (Presentation)  

SciTech Connect (OSTI)

This is a summary of the work of Group 3 of the International PV QA Task Force. Group 3 is chartered to develop accelerated stress tests that can be used as comparative predictors of module lifetime versus stresses associated with humidity, temperature and voltage.

Wohlgemuth, J.

2013-09-01T23:59:59.000Z

489

GSD Student Forum Student Group Spending Guidelines  

E-Print Network [OSTI]

GSD Student Forum Student Group Spending Guidelines September 2010 Questions regarding this document should be directed to the Student Forum Treasurer Purpose: This document serves to establish for GSD student groups guidelines on appropriate expenditures when using funding provided by Student Forum

490

Active Learning of Group-Structured Environments  

E-Print Network [OSTI]

Active Learning of Group-Structured Environments G´abor Bart´ok, Csaba Szepesv´ari , Sandra Zilles with their environment. We investigate learning environments that have a group structure. We introduce a learning model an environment from partial information is far from trivial. However, positive results for special subclasses

Szepesvari, Csaba

491

University of Paderborn Software Engineering Group  

E-Print Network [OSTI]

University of Paderborn Software Engineering Group 1 Subversion Configuration with Eclipse Softwaretechnikpraktikum 2006 #12;University of Paderborn Software Engineering Group 2 Installing SubclipseInstalling Subclipse Find and install new feature Use the Subclipse update site #12;University of Paderborn Software

Kindler, Ekkart

492

Telecommunication Networks Group Technische Universitt Berlin  

E-Print Network [OSTI]

Telecommunication Networks Group What can you do with MiXiM Supports energy consumption by ported Energy- Framework Energy consumption Focus on lower layers (Layer 1 + 2) #12;TKN Telecommunication Networks Group Outline) with energy consumption support Different channel-effects: LogNormalShadowing, SimplePathloss and Rayleigh

Wichmann, Felix

493

BREAST CANCER GROUP WOMEN'S HEALTH INTERDISCIPLINARY  

E-Print Network [OSTI]

BREAST CANCER GROUP May 2009 WOMEN'S HEALTH INTERDISCIPLINARY RESEARCH CENTER [WHIRC] #12;2 Table: Breast Cancer Research and Treatment 4 Basic/Translational Research Carcinogenesis and Signaling Group 5R) Signaling in Breast Cancer 6 NF-B Family of Transcription Factors in Breast Cancer 7 Transgenic Mouse

Spence, Harlan Ernest

494

Identifying Risk Groups Associated with Colorectal Cancer  

E-Print Network [OSTI]

Identifying Risk Groups Associated with Colorectal Cancer Jie Chen1 , Hongxing He1 , Huidong Jin1 of identifying and describing risk groups for colorectal cancer (CRC) from population based administrative health are applied to the colorectal cancer patients' profiles in contrast to background pa- tients' profiles

Jin, Huidong "Warren"

495

Permutation groups, minimal degrees and quantum computing  

E-Print Network [OSTI]

We study permutation groups of given minimal degree without the classical primitivity assumption. We provide sharp upper bounds on the order of a permutation group of minimal degree m and on the number of its elements of any given support. These results contribute to the foundations of a non-commutative coding theory. A main application of our results concerns the Hidden Subgroup Problem for the symmetric group in Quantum Computing. We completely characterize the hidden subgroups of the symmetric group that can be distinguished from identity with weak Quantum Fourier Sampling, showing these are exactly the subgroups with bounded minimal degree. This implies that the weak standard method for the symmetric group has no advantage whatsoever over classical exhaustive search.

Julia Kempe; Laszlo Pyber; Aner Shalev

2006-07-28T23:59:59.000Z

496

On perfect order subsets in finite groups  

E-Print Network [OSTI]

If $G$ is a finite group and $x\\in G$ then the set of all elements of $G$ having the same order as $x$ is called {\\em an order subset of $G$ determined by $x$} (see [2]). We say that $G$ is a {\\em group with perfect order subsets} or briefly, $G$ is a {\\em $POS$-group} if the number of elements in each order subset of $G$ is a divisor of $|G|$. In this paper we prove that for any $n\\geq 4$, the symmetric group $S_n$ is not $POS$-group. This gives the positive answer to one of two questions rising from Conjecture 5.2 in [3].

Tuan, Nguyen Trong

2010-01-01T23:59:59.000Z

497

DEVELOPMENT OF A VIRTUAL INTELLIGENCE TECHNIQUE FOR THE UPSTREAM OIL INDUSTRY  

SciTech Connect (OSTI)

The objective of the research and development work reported in this document was to develop a Virtual Intelligence Technique for optimization of the Preferred Upstream Management Practices (PUMP) for the upstream oil industry. The work included the development of a software tool for identification and optimization of the most influential parameters in upstream common practices as well as geological, geophysical and reservoir engineering studies. The work was performed in cooperation with three independent producing companies--Newfield Exploration, Chesapeake Energy, and Triad Energy--operating in the Golden Trend, Oklahoma. In order to protect data confidentiality, these companies are referred to as Company One, Two, Three in a randomly selected order. These producing companies provided geological, completion, and production data on 320 wells and participated in frequent technical discussions throughout the project. Research and development work was performed by Gas Technology Institute (GTI), West Virginia University (WVU), and Intelligent Solutions Inc. (ISI). Oklahoma Independent Petroleum Association (OIPA) participated in technology transfer and data acquisition efforts. Deliverables from the project are the present final report and a user-friendly software package (Appendix D) with two distinct functions: a characterization tool that identifies the most influential parameters in the upstream operations, and an optimization tool that seeks optimization by varying a number of influential parameters and investigating the coupled effects of these variations. The electronic version of this report is also included in Appendix D. The Golden Trend data were used for the first cut optimization of completion procedures. In the subsequent step, results from soft computing runs were used as the guide for detailed geophysical and reservoir engineering studies that characterize the cause-and-effect relationships between various parameters. The general workflow and the main performing units were as follows: (1) Data acquisition. (GTI, OIPA, Participating producers.) (2) Development of the virtual intelligence software. (WVU, ISI); (3) Application of the software on the acquired data. (GTI, ISI); (4) Detailed production analysis using conventional engineering techniques and the DECICE neural network software. (GTI) and (5) Detailed seismic analysis using Inspect spectral decomposition package and Hapmson-Russell's EMERGE inversion package. (GTI) Technology transfer took place through several workshops held at offices of the participating companies, at OIPA offices, and presentations at the SPE panel on soft computing applications and at the 2003 annual meeting of Texas Independent Producers and Royalty Owners Association (TIPRO). In addition, results were exhibited at the SPE annual meeting, published in GasTips, and placed on the GTI web page. Results from the research and development work were presented to the producing companies as a list of recommended recompletion wells and the corresponding optimized operations parameters. By the end of the project, 16 of the recommendations have been implemented the majority of which resulted in increased production rates to several folds. This constituted a comprehensive field demonstration with positive results.

Iraj A. Salehi; Shahab D. Mohaghegh; Samuel Ameri

2004-09-01T23:59:59.000Z

498

Superhydrophobic Materials Technology-PVC Bonding Techniques  

SciTech Connect (OSTI)

The purpose of the technology maturation project was to develop an enhanced application technique for applying diatomaceous earth with pinned polysiloxane oil to PVC pipes and materials. The oil infiltration technique is applied as a spray of diluted oil in a solvent onto the superhydrophobic diatomaceous earth substrate. This makes the surface take on the following characteristics: • wet?cleanable • anti?biofouling • waterproof • anti?corrosion. The project involved obtaining input and supplies from VeloxFlow and the development of successful techniques that would quickly result in a commercial license agreement with VeloxFlow and other companies that use PVC materials in a variety of other fields of use.

Hunter, Scott R. [Oak Ridge National Laboratory; Efird, Marty [VeloxFlow, LLC

2013-05-03T23:59:59.000Z

499

THE WAVE GROUP ON ASYMPTOTICALLY HYPERBOLIC ...  

E-Print Network [OSTI]

Then we use now standard techniques to analyze its regularized .... Proposition 5.19 of 18 gives that kernel of the normal operator is of the form k Np B = k1 Np B

1910-00-21T23:59:59.000Z

500

10-Ch09-N51893 [13:43 2008/9/13] Temam & Tribbia: Computational Methods for the Atmosphere and the Oceans Page: 377 377434 Data Assimilation for Geophysical  

E-Print Network [OSTI]

and the Oceans Page: 377 377­434 Data Assimilation for Geophysical Fluids Jacques Blum Laboratoire Jean. A prerequisite before a prediction is to retrieve at best the state of the environment. Data assimilation-order analysis should be considered. One of the first methods used for assim- ilating data in oceanography

Navon, Michael