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Sample records for geophysical techniques electrical

  1. Howard A. Zebker Professor of Geophysics and Electrical Engineering

    E-Print Network [OSTI]

    Zebker, Howard

    Howard A. Zebker Professor of Geophysics and Electrical Engineering Stanford University, Stanford, Departments of Geophysics and Electrical Engineering (joint appt.), Stanford University, Stanford, CA. 1995-2006 Associate Professor, Departments of Geophysics and Electrical Engineering (joint appt.), Stanford University

  2. Electrical Impedance Tomography in geophysics, application of EIDORS

    E-Print Network [OSTI]

    Adler, Andy

    Electrical Impedance Tomography in geophysics, application of EIDORS Lesparre N., Adler A., Gibert to adapt EIDORS for applications in geophysics. In geophysics, we apply EIT in order to image inner. The spatial resolution of the method in geophysics is of the order of meters and the penetration depth can

  3. 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 Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdistoWhiskeyFootprintGEXAGeminiEnergyHawaii |Methods JumpTechniques Jump

  4. 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 Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR Jump to: navigation, searchGeophysical Techniques Jump to:

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

    E-Print Network [OSTI]

    Jones, Alan G.

    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

  6. Geophysical Techniques for Monitoring CO2 Movement During Sequestration

    SciTech Connect (OSTI)

    Erika Gasperikova; G. Michael Hoversten

    2005-11-15

    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.

  7. GEOPHYSICS

    E-Print Network [OSTI]

    Volume 51. April 1986. Number 4. GEOPHYSICS. P-SV wave propagation in heterogeneous medla: Velocity-stress ?nite-difference method. Jean Virieux*.

  8. Inversion of surface and borehole gravity with thresholding and density constraints Jiajia Sun and Yaoguo Li, Center for Gravity, Electrical and Magnetic Studies, Department of Geophysics, Colorado

    E-Print Network [OSTI]

    and Yaoguo Li, Center for Gravity, Electrical and Magnetic Studies, Department of Geophysics, Colorado School

  9. A Hybrid Hydrologic-Geophysical Inverse Technique for the Assessment and Monitoring of Leachates in the Vadose Zone

    SciTech Connect (OSTI)

    ALUMBAUGH,DAVID L.; YEH,JIM; LABRECQUE,DOUG; GLASS,ROBERT J.; BRAINARD,JAMES; RAUTMAN,CHRIS

    1999-06-15

    The objective of this study is to develop and field test a new, integrated Hybrid Hydrologic-Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This new approach to site characterization and monitoring can provide detailed maps of hydrogeological heterogeneity and the extent of contamination by combining information from 3D electric resistivity tomography (ERT) and/or 2D cross borehole ground penetrating radar (XBGPR) surveys, statistical information about heterogeneity and hydrologic processes, and sparse hydrologic data. Because the electrical conductivity and dielectric constant of the vadose zone (from the ERT and XBGPR measurements, respectively) can be correlated to the fluid saturation and/or contaminant concentration, the hydrologic and geophysical measurements are related.

  10. Assessment of various geophysical techniques for Plains Indian archaeological site investigations 

    E-Print Network [OSTI]

    Klaff, Tamir Lee

    1993-01-01

    selected along the banks of Lake Sharpe, South Dakota for surveying. These sites were surveyed using geophysical techniques identified as having the most potential to rapidly locate anomalies characteristic of buried archaeological features, ground...

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

    E-Print Network [OSTI]

    Stillman, David E.

    MR22A-05 Electrical properties of saline ices and ice-silicate mixtures: geophysical) electrical-properties measurements of laboratory- produced saline ice, salt hydrates, and ice of interior properties, and habitability. The electrical properties of saline H2O are controlled by the binary

  12. Geophysical technique for mineral exploration and discrimination based on electromagnetic methods and associated systems

    DOE Patents [OSTI]

    Zhdanov; Michael S. (Salt Lake City, UT)

    2008-01-29

    Mineral exploration needs a reliable method to distinguish between uneconomic mineral deposits and economic mineralization. A method and system includes a geophysical technique for subsurface material characterization, mineral exploration and mineral discrimination. The technique introduced in this invention detects induced polarization effects in electromagnetic data and uses remote geophysical observations to determine the parameters of an effective conductivity relaxation model using a composite analytical multi-phase model of the rock formations. The conductivity relaxation model and analytical model can be used to determine parameters related by analytical expressions to the physical characteristics of the microstructure of the rocks and minerals. These parameters are ultimately used for the discrimination of different components in underground formations, and in this way provide an ability to distinguish between uneconomic mineral deposits and zones of economic mineralization using geophysical remote sensing technology.

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

    E-Print Network [OSTI]

    Hubbard, Susan

    of ground penetrating radar (GPR) tomographic velocity, GPR tomographic attenuation, and seismic tomographic where prior information is limited. Among the geophysical data, GPR and seismic velocity are more useful in situ hydrological measurements. Conventional borehole techniques such as flowmeter and slug tests

  14. Electrical 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 QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop, Inc Jump to:ElectraLinkof Mines and

  15. 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.

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

    SciTech Connect (OSTI)

    Barnhart, Kevin Scott

    2013-10-01

    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.

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

    E-Print Network [OSTI]

    Chen, Jinsong

    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

  18. Biomagnetic Techniques for Assessing Gastric and Small Bowel Electrical Activity

    E-Print Network [OSTI]

    Wikswo, John

    Biomagnetic Techniques for Assessing Gastric and Small Bowel Electrical Activity L. Alan Bradshaw intestinal electrical activity (GEA and IEA). While the cutaneous electrogastrogram (EGG) may reveal the frequency dynamics of gastric electrical activity, other parameters important for characterizing

  19. Category:Electrical 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 QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village,8199089°,AnalyticalCuttingsElectrical Techniques Jump to:

  20. Marine Geophysics: A Navy Symposium

    E-Print Network [OSTI]

    Shor, Elizabeth N; Ebrahimi, Carolyn L

    1987-01-01

    electrical polarization. Geophysics 22:660-687. Vacquier,Raitt, R. W. 1964. Geophysics of the South Pacific.Research in Geophysics 2:223-241. Francis, T. J. G. , and R.

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

    SciTech Connect (OSTI)

    SKORSKA MB; FINK JB; RUCKER DF; LEVITT MT

    2010-12-02

    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.

  2. Electric Vehicle Battery Thermal Issues and Thermal Management Techniques (Presentation)

    SciTech Connect (OSTI)

    Rugh, J. P.; Pesaran, A.; Smith, K.

    2013-07-01

    This presentation examines the issues concerning thermal management in electric drive vehicles and management techniques for improving the life of a Li-ion battery in an EDV.

  3. Sneaking Interaction Techniques into Electric Vehicles Sebastian Loehmann

    E-Print Network [OSTI]

    Sneaking Interaction Techniques into Electric Vehicles Sebastian Loehmann University of Munich (LMU Due to the release of several electric vehicles (EV) to the car market, the number of sales from regular combustion engine cars to create electric vehicle information systems (EVIS). We argue

  4. Hybrid opto-electric techniques for molecular diagnostics

    SciTech Connect (OSTI)

    Haque, Aeraj Ul [Argonne National Laboratory (ANL)

    2012-01-01

    Hybrid optoelectric techniques reflect a new paradigm in microfluidics. In essence, these are microfluidic techniques that employ a synergistic combination of optical and electrical forces to enable noninvasive manipulation of fluids and/or particle-type entities at the micro/nano-scale [1]. Synergy between optical and electrical forces bestows these techniques with several unique features that are promising to bring new opportunities in molecular diagnostics. Within the scope of molecular diagnostics, several aspects of optoelectric techniques promise to play a relevant role. These include, but are not limited to, sample preparation, sorting, purification, amplification and detection.

  5. Fiber optic diagnostic techniques for the electrical discharge machining process 

    E-Print Network [OSTI]

    Pillans, Brandon William

    1998-01-01

    Plasma sparks from an electrical discharge machining phics. (EDM) process were observed using fiber optics positioned the dielectric oil. New measurement techniques were developed to observe the spark in the extremely noisy environment. Optical data...

  6. A hybrid hydrologic-geophysical inverse technique for the assessment and monitoring of leachates in the vadose zone. 1998 annual progress report

    SciTech Connect (OSTI)

    Alumbaugh, D.L.; Glass, R.J.; Yeh, T.C.; LaBrecque, D.

    1998-06-01

    'The objective of this study is to develop and field test a new, integrated Hybrid Hydrologic-Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This new approach to site characterization and monitoring can provide detailed maps of hydrogeological heterogeneity and the extent of contamination by combining information from electric resistivity tomography (ERT) surveys, statistical information about heterogeneity and hydrologic processes, and sparse hydrologic data. Because the electrical conductivity of the vadose zone (from the ERT measurements) can be correlated to the fluid saturation and/or contaminant concentration, the hydrologic and geophysical measurements are related. As of the 21st month of a 36-month project, a three-dimensional stochastic hydrologic inverse model for heterogeneous vadose zones has been developed. This model employs pressure and moisture content measurements under both transient and steady flow conditions to estimate unsaturated hydraulic parameters. In this model, an innovative approach to sequentially condition the estimate using temporal measurements has been incorporated. This allows us to use vast amounts of pressure and moisture content information measured at different times while keeping the computational effort manageable. Using this model the authors have found that the relative importance of the pressure and moisture content measurements in defining the different vadose zone parameters depends on whether the soil is wet or dry. They have also learned that pressure and moisture content measurements collected during steady state flow provide the best characterization of heterogeneity compared to other types of hydrologic data. These findings provide important guidance to the design of sampling scheme of the field experiment described below.'

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

    SciTech Connect (OSTI)

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

    2005-10-01

    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.

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

    SciTech Connect (OSTI)

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

    2002-03-01

    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.

  9. A COUPLED HYDRAULIC AND ELECTRICAL STRESS DETERMINATION TECHNIQUE

    E-Print Network [OSTI]

    A COUPLED HYDRAULIC AND ELECTRICAL STRESS DETERMINATION TECHNIQUE Mai Linh DOAN Département de Alps. The Hydraulic Tests on Preexisting Fractures (HTPF) method was chosen for it provides means to determine the complete stress tensor. The campaign was performed with a specific probe, coupling hydraulic

  10. GEOPHYSICAL RESEARCH LETTERS, VOL. 23, NO. 13, PAGES 1597-1600, JUNE 15,1996 Deep electrical conductivity structures of the

    E-Print Network [OSTI]

    Jones, Alan G.

    GEOPHYSICAL RESEARCH LETTERS, VOL. 23, NO. 13, PAGES 1597-1600, JUNE 15,1996 Deep electrical, there is a crustal con- ductor which dips towards the southeast, interpreted as a structure related to the Acadian closed in the Devonian Acadian orogeny Finally, the Alleghanian orogeny records Late Palaeozoic colli

  11. A Novel Visualization Technique for Electric Power Grid Analytics

    SciTech Connect (OSTI)

    Wong, Pak C.; Schneider, Kevin P.; Mackey, Patrick S.; Foote, Harlan P.; Chin, George; Guttromson, Ross T.; Thomas, James J.

    2009-05-01

    The application of information visualization holds tremendous promise for the electric power industry, and yet its potential has not been sufficiently exploited by the visualization community. Prior work on visualizing electric power systems has been limited to depicting raw or processed information on top of a geographic layout. Little effort has been devoted to maximize the analytical strengths naturally gained by the visualization itself. This paper introduces a visualization system prototype, known as GreenGrid, that explores the planning and monitoring of the North American Electricity Infrastructure. For the purposes of visualization, the power infrastructure can be described as a network of nodes and links. The nodes represent the electrical buses where generators and loads are connected, while the links represent the transmission lines that interconnect the buses. This paper focuses mainly on a customized technique within GreenGrid that is designed to visually identify abnormal characteristics of the electricity infrastructure. In particular, we examine an extreme event that occurred within the Western United States power grid on August 10, 1996. We compare our study results with the conclusion of the post-disturbance analysis and find that many of the disturbance characteristics can be readily identified with the proper form of visualization. The paper includes a lessons learned discussion to evaluate the visualization application.

  12. A versatile technique to minimize electrical losses in distribution feeders

    SciTech Connect (OSTI)

    Kyaruzi, A.L.

    1994-12-31

    This dissertation presents a method of minimizing electrical losses in radial distribution feeders by the use of shunt capacitors. The engineering benefits of reducing peak electrical power and energy losses are compared to the costs associated with the current engineering practice of buying, installing and servicing capacitor banks in the distribution feeders. The present analysis defines this cost-benefit problem and the formulation of the problem of nonuniform feeders with different wire gauges at various feeder sections. Standard utility capacitor bank sizes are used to give a more realistic model. An original computer solution methodology based on techniques developed for this study determines: (i) Whether it is economical to install compensating capacitor banks on a particular radial distribution feeder or not. (ii) The locations at which capacitor banks should be installed. (iii) The types and sizes of capacitor banks to be installed. (iv) The time setting of switched capacitor banks. The techniques have been applied to a typical radial distribution feeder in Dar-es-Salaam, Tanzania. The results and the engineering implications of this work are discussed and recommendations for the engineering community made.

  13. SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT

    SciTech Connect (OSTI)

    RUCKER DF; MYERS DA

    2011-10-04

    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.

  14. MAGNETIC RESONANCE ELECTRICAL IMPEDANCE TOMOGRAPHY (MR-EIT): A new technique for high resolution conductivity imaging

    E-Print Network [OSTI]

    Eyüboðlu, Murat

    MAGNETIC RESONANCE ELECTRICAL IMPEDANCE TOMOGRAPHY (MR-EIT): A new technique for high resolution are measured by using conventional electrical impedance tomography techniques and high resolution magnetic and the point spread function is not space invariant. On the other hand, magnetic field and electrical current

  15. A novel technique that creates electricity using the sun and generation technology

    E-Print Network [OSTI]

    Bristol, University of

    unlimited, if the electricity is transported from the world's solar belts to areas of high demand. DiamondA novel technique that creates electricity using the sun and generation technology from space solar heat to produce electricity in devices called thermionic energy converters (TECs) for which

  16. Condition Monitoring of Cables Task 3 Report: Condition Monitoring Techniques for Electric Cables

    SciTech Connect (OSTI)

    Villaran, M.; Lofaro, R.; na

    2009-11-30

    For more than 20 years the NRC has sponsored research studying electric cable aging degradation, condition monitoring, and environmental qualification testing practices for electric cables used in nuclear power plants. This report summarizes several of the most effective and commonly used condition monitoring techniques available to detect damage and measure the extent of degradation in electric cable insulation. The technical basis for each technique is summarized, along with its application, trendability of test data, ease of performing the technique, advantages and limitations, and the usefulness of the test results to characterize and assess the condition of electric cables.

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

    E-Print Network [OSTI]

    Seismic wave propagation is a common technique used in hydrocarbon exploration geophysics, mining and reservoir characterization and production.

  18. Course: Numerical Simulation in Applied Geophysics. From the ...

    E-Print Network [OSTI]

    2013-10-09

    Seismic wave propagation is a common technique used in hydrocarbon explo- ration geophysics, mining and reservoir characterization and production.

  19. ESTIMATING UNCERTAINTIES FOR GEOPHYSICAL

    E-Print Network [OSTI]

    Kreinovich, Vladik

    to directly measure the amount of oil in an area is to drill several wells, but drilling is a very expensive. These techniques are applied to the inversion of traveltime data collected in a cross well seismic experiment procedure, and the whole idea of geophysics is to predict the amount of oil without drilling in all possible

  20. Archaeological investigation of the Court Kiva in Chaco Canyon using geophysical methods Cericia Martinez*

    E-Print Network [OSTI]

    -invasive, geophysical techniques. Due to the non-invasive nature of magnetic, electrical and electromagnetic data as park approval is granted. The data and interpretation from a component of this project is the focus and subsequently backfilled for preservation purposes. There is very little record of the Court Kiva's excavation

  1. Asteroid Surface Geophysics

    E-Print Network [OSTI]

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

    2015-01-01

    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...

  2. 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)

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

    2001-07-31

    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.

  3. Towards Effective Clustering Techniques for the Analysis of Electric Power Grids

    SciTech Connect (OSTI)

    Hogan, Emilie A.; Cotilla Sanchez, Jose E.; Halappanavar, Mahantesh; Wang, Shaobu; Mackey, Patrick S.; Hines, Paul; Huang, Zhenyu

    2013-11-30

    Clustering is an important data analysis technique with numerous applications in the analysis of electric power grids. Standard clustering techniques are oblivious to the rich structural and dynamic information available for power grids. Therefore, by exploiting the inherent topological and electrical structure in the power grid data, we propose new methods for clustering with applications to model reduction, locational marginal pricing, phasor measurement unit (PMU or synchrophasor) placement, and power system protection. We focus our attention on model reduction for analysis based on time-series information from synchrophasor measurement devices, and spectral techniques for clustering. By comparing different clustering techniques on two instances of realistic power grids we show that the solutions are related and therefore one could leverage that relationship for a computational advantage. Thus, by contrasting different clustering techniques we make a case for exploiting structure inherent in the data with implications for several domains including power systems.

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

    SciTech Connect (OSTI)

    Miller, Peter T.; Starmer, R. John

    2003-02-27

    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.

  5. Geophysical detection and structural characterization of discontinuities in rock

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geophysical detection and structural characterization of discontinuities in rock slopes (J. Deparis geophysical methods (seismic, electric and electromagnetic) are available to address this problem, differing and geophysical methods for characterizing the rock mass. Section 2 is dedicated to a review of the main

  6. A resolution analysis of two geophysical imaging methods for characterizing and monitoring hydrologic conditions in the Vadose zone.

    SciTech Connect (OSTI)

    Brainard, James Robert; Hammond, Gary.; Alumbaugh, David L.; La Brecque, D.J.

    2007-06-01

    This research project analyzed the resolution of two geophysical imaging techniques, electrical resistivity tomography (ERT) and cross-borehole ground penetrating radar (XBGPR), for monitoring subsurface flow and transport processes within the vadose zone. The study was based on petrophysical conversion of moisture contents and solute distributions obtained from unsaturated flow forward modeling. This modeling incorporated boundary conditions from a potable water and a salt tracer infiltration experiment performed at the Sandia-Tech Vadose Zone (STVZ) facility, and high-resolution spatial grids (6.25-cm spacing over a 1700-m domain) and incorporated hydraulic properties measured on samples collected from the STVZ. The analysis process involved petrophysical conversion of moisture content and solute concentration fields to geophysical property fields, forward geophysical modeling using the geophysical property fields to obtain synthetic geophysical data, and finally, inversion of this synthetic data. These geophysical property models were then compared to those derived from the conversion of the hydrologic forward modeling to provide an understanding of the resolution and limitations of the geophysical techniques.

  7. AN EVALUATION OF CONDITION MONITORING TECHNIQUES FOR LOW-VOLTAGE ELECTRIC CABLES

    SciTech Connect (OSTI)

    LOFARO,R.J.; GROVE,E.; SOO,P.

    2000-07-23

    Aging of systems and components in nuclear power plants is a well known occurrence that must be managed to ensure the continued safe operation of these plants. Much of the degradation due to aging is controlled through periodic maintenance and/or component replacement. However, there are components that do not receive periodic maintenance or monitoring once they are installed; electric cables are such a component. To provide a means of monitoring the condition of electric cables, research is ongoing to evaluate promising condition monitoring (CM) techniques that can be used in situ to monitor cable condition and predict remaining life. While several techniques are promising, each has limitations that must be considered in its application. This paper discusses the theory behind several of the promising cable CM techniques being studied, along with their effectiveness for monitoring aging degradation in typical cable insulation materials, such as cross-linked polyethylene and ethylene propylene rubber. Successes and limitations of each technique are also presented.

  8. Application of Least Squares MPE technique in the reduced order modeling of electrical circuits

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    fast analysis of the circuit designs and reduce the manufacturing cost and time. Typical dimensions models [12]. Due to the growing complexities in circuit designs, linear models are often inadequateApplication of Least Squares MPE technique in the reduced order modeling of electrical circuits

  9. GEOPHYSICAL APPLICATIONS OF SQUIDS

    E-Print Network [OSTI]

    Goubau, W.M.

    2013-01-01

    W. M. , and Clarke, J. : Geophysics Zimmerman, J. : Second1976). Sims, W. K. :, Geophysics E. , physics~. and Ketchen,Geo- and Clarke, J. : Geophysics Gamble, T. D. , Goubau, W.

  10. GEOPHYSICAL RESEARCH LETTERS, VOL. 24, NO. 23, PAGES 3097-3100, DECEMBER 1, 1997 Applicability of wavelet algorithm for geophysical

    E-Print Network [OSTI]

    Vasilyev, Oleg V.

    GEOPHYSICAL RESEARCH LETTERS, VOL. 24, NO. 23, PAGES 3097-3100, DECEMBER 1, 1997 Applicability of wavelet algorithm for geophysical viscoelastic flow Oleg V. Vasilyev,1 David A. Yuen,2 and Yuri Yu. Podladchikov3 Abstract. This paper introduces a newly developed wavelet technique for modeling of geophysical

  11. Interim progress report addendun - environmental geophysics: Building E5032 decommissioning, Aberdeen Proving Ground, January 1994 resurvey

    SciTech Connect (OSTI)

    Thompson, M.D.; McGinnis, L.D.; Benson, M.A.; Borden, H.M.; Padar, C.A.

    1994-12-01

    Geophysical surveying around Building E5032 using three new continuously recording geophysical instruments - two types of electromagnetic induction instruments and a cesium vapor magnetometer that were unavailable at the time of the original survey - has provided additional information for defining the location of buried debris, vaults, tanks, and the drainage/sump system near the building. The dominant geophysical signature around Building E5032 consists of a complex pattern of linear magnetic, electrical-conductivity, and electromagnetic field anomalies that appear to be associated with drainage/sewer systems, ditches, past railway activity, the location for Building T5033 (old number 99A), and the probable location of Building 91. Integrated analysis of data acquired using the three techniques, plus a review of the existing ground-penetrating-radar data, allow a more thorough definition of the sources for the observed anomalies.

  12. INTRODUCTION APPLIED GEOPHYSICS

    E-Print Network [OSTI]

    Merriam, James

    GEOL 384.3 INTRODUCTION TO APPLIED GEOPHYSICS OUTLINE INTRODUCTION TO APPLIED GEOPHYSICS GEOL 384 unknowns; the ones we don't know we don't know. And if one looks throughout the history of geophysics he didn't really say geophysics. He said, " ... our country and other free countries ...". But I am

  13. Non-Seismic Geophysical Approaches to Monitoring

    SciTech Connect (OSTI)

    Hoversten, G.M.; Gasperikova, Erika

    2004-09-01

    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.

  14. Project Milestone. Analysis of Range Extension Techniques for Battery Electric Vehicles

    SciTech Connect (OSTI)

    Neubauer, Jeremy; Wood, Eric; Pesaran, Ahmad

    2013-07-01

    This report documents completion of the July 2013 milestone as part of NREL’s Vehicle Technologies Annual Operating Plan with the U.S. Department of Energy. The objective was to perform analysis on range extension techniques for battery electric vehicles (BEVs). This work represents a significant advancement over previous thru-life BEV analyses using NREL’s Battery Ownership Model, FastSim,* and DRIVE.* Herein, the ability of different charging infrastructure to increase achievable travel of BEVs in response to real-world, year-long travel histories is assessed. Effects of battery and cabin thermal response to local climate, battery degradation, and vehicle auxiliary loads are captured. The results reveal the conditions under which different public infrastructure options are most effective, and encourage continued study of fast charging and electric roadway scenarios.

  15. Electrical characterization of non-Fickian transport in groundwater and hyporheic systems

    E-Print Network [OSTI]

    Singha, Kamini

    Electrical characterization of non-Fickian transport in groundwater and hyporheic systems Kamini be quantified by combining electrical geophysical methods and electrically conductive tracers. Whereas direct geochemical measurements of solute preferentially sample the mobile domain, electrical geophysical methods

  16. Abstract--While techniques exist for the rapid prototyping of mechanical and electrical components separately, this paper

    E-Print Network [OSTI]

    Haller, Gary L.

    separately, this paper describes a method where commercial Additive Manufacturing (AM) techniques can be used produced using additive manufacturing (AM) techniques is beginning to allow for commercial-grade systems fabrication Injected 3D Electrical Traces in Additive Manufactured Parts with Low Melting Temperature Metals

  17. Geophysical InversionFacility

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    UBC Geophysical InversionFacility Modelling and Inversion of EMI data collected over magnetic soils of EMI data acquired at sites with magnetic soils · Geophysical Proveouts · Geonics EM63 Data · First model parameters: · Location · Orientation · Polarizabilities 4 #12;UBC Geophysical Inversion Facility

  18. Geophysical inversion using petrophysical constraints with application to lithology differentiation Jiajia Sun and Yaoguo Li, Center for Gravity, Electrical and Magnetic Studies, Colorado School of Mines

    E-Print Network [OSTI]

    Jiajia Sun and Yaoguo Li, Center for Gravity, Electrical and Magnetic Studies, Colorado School of Mines

  19. Oxygen Transport Kinetics in Infiltrated SOFCs Cathode by Electrical Conductivity Relaxation Technique

    SciTech Connect (OSTI)

    Li, Yihong; Gerdes, Kirk; Liu, Xingbo

    2013-07-01

    Infiltration has attracted increasing attention as an effective technique to modify SOFC cathodes to improve cell electrochemical performance while maintaining material compatibility and long-term stability. However, the infiltrated material's effect on oxygen transport is still not clear and detailed knowledge of the oxygen reduction reaction in infiltrated cathodes is lacking. In this work, the technique of electrical conductivity relaxation (ECR) is used to evaluate oxygen exchange in two common infiltrated materials, Ce{sub 0.8}Sm{sub 0.2}O{sub 1.9} and La{sub 0.6}Sr{sub 0.4}CoO{sub 3-?}. The ECR technique is also used to examine the transport processes in a composite material formed with a backbone of La{sub 0.6}Sr{sub 0.4}Co{sub 0.2}Fe{sub 0.8}O{sub 3-?} and possessing a thin, dense surface layer composed of the representative infiltrate material. Both the surface oxygen exchange process and the oxygen exchange coefficient at infiltrate/LSCF interface are reported. ECR testing results indicate that the application of infiltrate under certain oxygen partial pressure conditions produces a measureable increase in the fitted oxygen exchange parameter. It is presently only possible to generate hypotheses to explain the observation. However the correlation between improved electrochemical performance and increased oxygen transport measured by ECR is reliably demonstrated. The simple and inexpensive ECR technique is utilized as a direct method to optimize the selection of specific infiltrate/backbone material systems for superior performance.

  20. Geophysical methods applied to characterize landfill covers with geocomposite F. Genelle1, 2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geophysical methods applied to characterize landfill covers with geocomposite F. Genelle1, 2 , C attempt to characterize with geophysical methods the state of landfill covers to detect damages that can. The geophysical methods used were the Electrical Resistivity Tomography (ERT), cartography with an Automatic

  1. INVERSION FOR APPLIED GEOPHYSICS: A TUTORIAL

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    velocity, electrical conductivity, or magnetic susceptibility. The appropriate geophysical survey. To obtain that information the data need to be inverted to generate a 3D subsurface distribution principles. Our goal is to present those principles, discuss in detail the essential elements of the inverse

  2. Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA); Laine, Daren L. (San Antonio, TX); Laine, Edwin F. (Alamo, CA)

    1997-01-01

    Methods are provided for detecting and locating leaks in liners used as barriers in the construction of landfills, surface impoundments, water reservoirs, tanks, and the like. Electrodes are placed in the ground around the periphery of the facility, in the leak detection zone located between two liners if present, and/or within the containment facility. Electrical resistivity data is collected using these electrodes. This data is used to map the electrical resistivity distribution beneath the containment liner between two liners in a double-lined facility. In an alternative embodiment, an electrode placed within the lined facility is driven to an electrical potential with respect to another electrode placed at a distance from the lined facility (mise-a-la-masse). Voltage differences are then measured between various combinations of additional electrodes placed in the soil on the periphery of the facility, the leak detection zone, or within the facility. A leak of liquid though the liner material will result in an electrical potential distribution that can be measured at the electrodes. The leak position is located by determining the coordinates of an electrical current source pole that best fits the measured potentials with the constraints of the known or assumed resistivity distribution.

  3. Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA); Laine, Daren L. (San Anotonio, TX); Laine, Edwin F. (Penn Valley, CA)

    2001-01-01

    Methods are provided for detecting and locating leaks in liners used as barriers in the construction of landfills, surface impoundments, water reservoirs, tanks, and the like. Electrodes are placed in the ground around the periphery of the facility, in the leak detection zone located between two liners if present, and/or within the containment facility. Electrical resistivity data is collected using these electrodes. This data is used to map the electrical resistivity distribution beneath the containment liner or between two liners in a double-lined facility. In an alternative embodiment, an electrode placed within the lined facility is driven to an electrical potential with respect to another electrode placed at a distance from the lined facility (mise-a-la-masse). Voltage differences are then measured between various combinations of additional electrodes placed in the soil on the periphery of the facility, the leak detection zone, or within the facility. A leak of liquid through the liner material will result in an electrical potential distribution that can be measured at the electrodes. The leak position is located by determining the coordinates of an electrical current source pole that best fits the measured potentials with the constraints of the known or assumed resistivity distribution.

  4. Fiber optic geophysical sensors

    DOE Patents [OSTI]

    Homuth, Emil F. (Los Alamos, NM)

    1991-01-01

    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.

  5. GEOLOGY & GEOPHYSICS 2014-2015

    E-Print Network [OSTI]

    Bermúdez, José Luis

    GEOLOGY & GEOPHYSICS 2014-2015 Graduate Student Handbook - 1 · Geology & Geophysics Core Values - 2 · A Message from the Graduate Advisor - 3 · Department Organizations - 60 · Departmental Executive Committee - 61 · Geology& Geophysics Development Advisory Council

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

    E-Print Network [OSTI]

    Santos, Juan

    Seismic wave propagation is a common technique used in hydrocarbon exploration geophysics, mining's crust and induce attenuation, dispersion and anisotropy of the seismic waves observed at the macroscale process. Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale ­ p. #12

  7. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    Site Characterization Geophysics CONTENTS INTRODUCTIONSite Characterization Geophysics SELF-POTENTIAL Referencesand Environmental Geophysics, S. H. Ward, ed. (Soc. Expl.

  8. Dr. Benjamin R. Phillips Benjamin Phillips is a Program Director in Geophysics at the National Science

    E-Print Network [OSTI]

    Gilbes, Fernando

    Dr. Benjamin R. Phillips Benjamin Phillips is a Program Director in Geophysics at the National for Geophysics at the University of Texas at Austin developing earthquake location techniques in support. Associate Program Director, Geophysics National Science Foundation 4201 Wilson Boulevard Arlington, VA 22230

  9. Final Report for "Toward Quantifying Kinetics of Biotic and Abiotic Metal Reduction with Electrical Geophysical Methods" DE-FG02-08ER64520

    SciTech Connect (OSTI)

    Singha, Kamini; Brantley, Susan

    2012-06-07

    Although changes in the bulk electrical conductivity in aquifers have been attributed to microbial activity, electrical conductivity has never been used to infer biogeochemical reaction rates quantitatively. To explore the use of electrical conductivity to measure reaction rates, we conducted iron oxide reduction experiments of increasing biological complexity. To quantify reaction rates, we proposed composite reactions that incorporated the stiochiometry of five different types of reactions: redox, acid-based, sorption, dissolution/precipitation, and biosynthesis. In batch and column experiments, such reaction stiochiometries inferred from a few chemical measurements allowed quantification of the Fe-oxide reduction rate based on changes in electrical conductivity. The relationship between electrical conductivity and fluid chemistry did not hold during the latter stages of the column experiment when electrical conductivity increased while fluid chemistry remained constant. Growth of an electrically conductive biofilm could explain this late stage electrical conductivity increase. This work demonstrates that measurements of electrical conductivity and flow rate, combined with a few direct chemical measurements, can be used to quantify biogeochemical reaction rates in controlled laboratory situations and may be able to detect the presence of biofilms.

  10. Advances in borehole geophysics for hydrology

    SciTech Connect (OSTI)

    Nelson, P.H.

    1982-01-01

    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.

  11. Advanced signal processing in geophysical remote sensing

    SciTech Connect (OSTI)

    Witten, A.J.; King, W.C.

    1993-06-01

    This paper describes advanced signal processing methods which have improved the capabilities to detect and image the subsurface environment with geophysical remote sensing techniques. Field results are presented showing target detection, subsurface characterizations, and imaging of insitu waste treatment processes, all previously unachievable with such tools as ground penetrating radar, magnetometry and seismic.

  12. Advanced signal processing in geophysical remote sensing

    SciTech Connect (OSTI)

    Witten, A.J. ); King, W.C. . Dept. of Geography and Environmental Engineering)

    1993-01-01

    This paper describes advanced signal processing methods which have improved the capabilities to detect and image the subsurface environment with geophysical remote sensing techniques. Field results are presented showing target detection, subsurface characterizations, and imaging of insitu waste treatment processes, all previously unachievable with such tools as ground penetrating radar, magnetometry and seismic.

  13. Fiber optic geophysical sensors

    DOE Patents [OSTI]

    Homuth, E.F.

    1991-03-19

    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.

  14. Bias-Flip Technique for Frequency Tuning of Piezo-Electric Energy Harvesting Devices

    E-Print Network [OSTI]

    Zhao, Jianying

    Devices that harvest electrical energy from mechanical vibrations have the problem that the frequency of the source vibration is often not matched to the resonant frequency of the energy harvesting device. Manufacturing ...

  15. Calculation methods and detection techniques for electric and magnetic fields from power lines with measurement verification 

    E-Print Network [OSTI]

    Mamishev, Alexander V

    1994-01-01

    An accurate determination and characterization of electric and magnetic fields produced by power lines is a complex task. Different models must be used for far fields and for near fields. This study is centered on computation and measurement aspects...

  16. Long term infrastructure investments under uncertainty in the electric power sector using approximate dynamic programming techniques

    E-Print Network [OSTI]

    Seelhof, Michael

    2014-01-01

    A computer model was developed to find optimal long-term investment strategies for the electric power sector under uncertainty with respect to future regulatory regimes and market conditions. The model is based on a ...

  17. Using regulatory benchmarking techniques to set company performance targets: the case of US electricity

    E-Print Network [OSTI]

    Nillesen, Paul; Pollitt, Michael G.

    accounting for 67 percent of the market measured in number of customers (this is equivalent to 94mln. customers). Retail electricity sales totalled almost $270 billion in 2004, whereas total operating revenues of the IOUs were approximately $387 billion... In the sector known as FERC Form-1 files. 13 retailing costs of the distribution company. 10 The key data we data we use is not directly collected by FERC, as most companies are integrated utilities producing, transmitting and retailing electricity. We have...

  18. SEM technique for imaging and measuring electronic transport in nanocomposites based on electric field induced contrast

    DOE Patents [OSTI]

    Jesse, Stephen (Knoxville, TN) [Knoxville, TN; Geohegan, David B. (Knoxville, TN) [Knoxville, TN; Guillorn, Michael (Brooktondale, NY) [Brooktondale, NY

    2009-02-17

    Methods and apparatus are described for SEM imaging and measuring electronic transport in nanocomposites based on electric field induced contrast. A method includes mounting a sample onto a sample holder, the sample including a sample material; wire bonding leads from the sample holder onto the sample; placing the sample holder in a vacuum chamber of a scanning electron microscope; connecting leads from the sample holder to a power source located outside the vacuum chamber; controlling secondary electron emission from the sample by applying a predetermined voltage to the sample through the leads; and generating an image of the secondary electron emission from the sample. An apparatus includes a sample holder for a scanning electron microscope having an electrical interconnect and leads on top of the sample holder electrically connected to the electrical interconnect; a power source and a controller connected to the electrical interconnect for applying voltage to the sample holder to control the secondary electron emission from a sample mounted on the sample holder; and a computer coupled to a secondary electron detector to generate images of the secondary electron emission from the sample.

  19. Accessing interior magnetic field vector components in neutron electric dipole moment experiments via exterior measurements, I. Boundary-value techniques

    E-Print Network [OSTI]

    B. Plaster

    2013-09-22

    We propose a new concept for determining the interior magnetic field vector components in neutron electric dipole moment experiments. If a closed three-dimensional boundary surface surrounding the fiducial volume of an experiment can be defined such that its interior encloses no currents or sources of magnetization, each of the interior vector field components and the magnetic scalar potential will satisfy a Laplace equation. Therefore, if either the vector field components or the normal derivative of the scalar potential can be measured on the surface of this boundary, thus defining a Dirichlet or Neumann boundary-value problem, respectively, the interior vector field components or the scalar potential (and, thus, the field components via the gradient of the potential) can be uniquely determined via solution of the Laplace equation. We discuss the applicability of this technique to the determination of the interior magnetic field components during the operating phase of neutron electric dipole moment experiments when it is not, in general, feasible to perform direct in situ measurements of the interior field components. We also study the specifications that a vector field probe must satisfy in order to determine the interior vector field components to a certain precision. The technique we propose here may also be applicable to experiments requiring monitoring of the vector magnetic field components within some closed boundary surface, such as searches for neutron-antineutron oscillations along a flight path or measurements in storage rings of the muon anomalous magnetic moment $g-2$ and the proton electric dipole moment.

  20. Electrical test structures and measurement techniques for the characterisation of advanced photomasks 

    E-Print Network [OSTI]

    Tsiamis, Andreas

    2010-01-01

    Existing photomask metrology is struggling to keep pace with the rapid reduction of IC dimensions as traditional measurement techniques are being stretched to their limits. This thesis examines the use of on-mask probable ...

  1. Investigation of structural and electrical properties of flat a-Si/c-Si heterostructure fabricated by EBPVD technique

    SciTech Connect (OSTI)

    Demiro?lu, D.; Tatar, B.; Kazmanli, K.; Urgen, M.

    2013-12-16

    Flat amorphous silicon - crystal silicon (a-Si/c-Si) heterostructure were prepared by ultra-high vacuum electron beam evaporation technique on p-Si (111) and n-Si (100) single crystal substrates. Structural analyses were investigated by XRD, Raman and FEG-SEM analysis. With these analyses we determined that at the least amorphous structure shows modification but amorphous structure just protected. The electrical and photovoltaic properties of flat a-Si/c-Si heterojunction devices were investigated with current-voltage characteristics under dark and illumination conditions. Electrical properties of flat a-Si/c-Si heterorojunction; such as barrier height ?{sub B}, diode ideality factor ? were determined from current-voltage characteristics in dark conditions. These a-Si/c-Si heterostructure have good rectification behavior as a diode and exhibit high photovoltaic sensitivity.

  2. Techniques of analyzing the impacts of certain electric-utility ratemaking and regulatory-policy concepts. Bibliography

    SciTech Connect (OSTI)

    1980-08-01

    This bibliography provides documentation for use by state public utility commissions and major nonregulated utilities in evaluating the applicability of a wide range of electric utility rate design and regulatory concepts in light of certain regulatory objectives. Part I, Utility Regulatory Objectives, contains 2084 citations on conservation of energy and capital; efficient use of facilities and resources; and equitable rates to electricity consumers. Part II, Rate Design Concepts, contains 1238 citations on time-of-day rates; seasonally-varying rates; cost-of-service rates; interruptible rates (including the accompanying use of load management techniques); declining block rates; and lifeline rates. Part III, Regulatory Concepts, contains 1282 references on restrictions on master metering; procedures for review of automatic adjustment clauses; prohibitions of rate or regulatory discrimination against solar, wind, or other small energy systems; treatment of advertising expenses; and procedures to protect ratepayers from abrupt termination of service.

  3. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: May 11 (Geophysics) On Original Copies Dr. Terence K. Young Professor and Head Department of Geophysics Approved

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

    SciTech Connect (OSTI)

    Daniels, Jeff

    2012-11-30

    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}.

  5. Physics and Astronomy Geophysics Concentration

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    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

  6. 2, 637671, 2005 Geophysics and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    BGD 2, 637­671, 2005 Geophysics and geochemistry of seafloor brines S. B. Joye et al. Title Page Discussions is the access reviewed discussion forum of Biogeosciences Geophysical and geochemical signatures under a Creative Commons License. 637 #12;BGD 2, 637­671, 2005 Geophysics and geochemistry of seafloor

  7. Effect of nonlinear absorption on electric field applied lead chloride by Z-scan technique

    SciTech Connect (OSTI)

    Rejeena, I. [International School of Photonics, Cochin University of Science and Technology, Cochin Kerala, India and M.S.M. College, Kayamkulam, Kerala (India); Lillibai,; Nampoori, V. P. N.; Radhakrishnan, P. [International School of Photonics, Cochin University of Science and Technology, Cochin Kerala (India); Rahimkutty, M. H. [M.S.M. College, Kayamkulam, Kerala (India)

    2014-10-15

    The preparation, spectral response and optical nonlinearity of gel grown lead chloride single crystals subjected to electric field of 20V using parallel plate arrangements have been investigated. Optical band gap of the samples were determined using linear absorption spectra. Open aperture z-scan was employed for the determination of nonlinear absorption coefficient of PbCl{sub 2} solution. The normalized transmittance curve exhibits a valley shows reverse saturable absorption. The non linear absorption at different input fluences were recorded using a single Gaussian laser beam in tight focus geometry. The RSA nature of the sample makes it suitable for optical limiting applications.

  8. ELECTRIC

    Office of Legacy Management (LM)

    you nay give us will be greatly uppreckted. VPry truly your23, 9. IX. Sin0j3, Mtinager lclectronics and Nuclear Physics Dept. omh , WESTINGHOUSE-THE NAT KING IN ELECTRICITY...

  9. Joint Master Applied Geophysics

    E-Print Network [OSTI]

    Langendoen, Koen

    , engineering geophysics Year 2, October to February: RWTH Aachen Univer- sity Geothermics, petrophysics, borehole logging Year 2, March to August: Master thesis at one of the three universities or other approved is in geothermal exploration and basin modelling Aachen is situated on the rim of the wooded Eifel and Hautes

  10. Measurements of ionospheric electric field convection by the long-line technique

    SciTech Connect (OSTI)

    MacDougall, J.W.

    1981-06-01

    Ionospheric E x B convections are measured by a new technique that uses satellite scintillations. The measurements are for and ionospheric region centred on 39/sup 0/N, 82/sup 0/W geographic or 53/sup 0/ invarient latitude. Results are presented for spring equinox 1980. The quiet condition eastward convection drift is approximately V/sub i/E = -12+43 cos(2..pi../24)(t-13.4). During disturbed conditions at nighttime the westward convection becomes large and highly variable. The northward perpendicular E x B convection is approximately V/sub i/N = -5+13 cos (2..pi../12)(t-10.5)+6 cos (2..pi../24) (t-11.5) m/s during quiet conditions. During disturbed conditions the semidiurnal component of the northward convection increases by about a factor of 3 and becomes larger than the diurnal.

  11. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: May 10 (Geophysics). Golden, Colorado Date May 15, 2006 Signed: on original copy Jeongmin Lee Signed: on original

  12. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: September fulfillment of the requirements for the degree of Master of Science (Geophysics). Golden, Colorado Date

  13. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics;#12;Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics of the requirements for the degree of Master of Science (Geophysics). Golden, Colorado Date: April 14, 2005 Signed

  14. Electrical, optical and magnetic investigations on LiNiPO{sub 4} based olivines synthesized by solution combustion technique

    SciTech Connect (OSTI)

    Vijayan, Lakshmi [St. Aloysius College, Edathua, Alappuzha (District), Kerala 689573 (India); Cheruku, Rajesh [Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, R.V. Nagar, Kalapet, Pondicherry 605 014 (India); Govindaraj, G., E-mail: ggraj_7@yahoo.com [Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, R.V. Nagar, Kalapet, Pondicherry 605 014 (India)

    2014-02-01

    Highlights: • Solution combustion technique and preparation of nanocrystalline olivine materials. • Olivine type LiNiPO{sub 4} based nanocrystalline materials and characterization. • AC electrical studies on olivine type LiNi{sub 1?x}M{sub x}PO{sub 4}(M = Cu{sup 2+}/Mg{sup 2+})based materials. • Enhancement of ionic conductivity in the nanocrystalline phase of LiNiPO{sub 4} material. - Abstract: Citric acid assisted solution combustion technique is explored for synthesis of supervalent Cu{sup 2+}/Mg{sup 2+} ion doped LiNiPO{sub 4} system. XRD, FT-IR and microscopy studies confirmed the formation of a well crystallized material at low concentration of dopants. Ionic conductivity increases for lower concentrations of dopants due to the increased channel size for Li{sup +} diffusion. Owing to inherent anti-site defects, ionic conductivity decreases with increase of dopant concentration. Magnetic studies are explored for confirmation of antiferromagnetic nature of ions. Wagner polarization method is used to elucidate the negligible contribution of electrons to total conductivity.

  15. Understanding biogeobatteries: Where geophysics meets microbiology

    E-Print Network [OSTI]

    Revil, A.

    2010-01-01

    duckling of environmental geophysics, Leading Edge, 21(5),Pure and Applied Geophysics, 157, 357-382. Pinder, G.F. ,sulfide self-potentials, Geophysics, 25, 226–249. Sauck, W.

  16. Geophysical Monitoring of Hydrological and Biogeochemical

    E-Print Network [OSTI]

    Hubbard, Susan

    Geophysical Monitoring of Hydrological and Biogeochemical Transformations Associated with Cr explored the use of geophysical approaches for monitoring the spatiotemporal distribution of hydrological first integrated hydrological wellbore and geophysical tomographic data sets to estimate hydrological

  17. Two-Dimensional Measurement of n+-p Asymmetrical Junctions in Multicrystalline Silicon Solar Cells using AFM-Based Electrical Techniques with Nanometer Resolution

    SciTech Connect (OSTI)

    Jiang, C. S.; Heath, J. T.; Moutinho, H. R.; Li, J. V.; Al-Jassim, M. M.

    2011-01-01

    Lateral inhomogeneities of modern solar cells demand direct electrical imaging with nanometer resolution. We show that atomic force microscopy (AFM)-based electrical techniques provide unique junction characterizations, giving a two-dimensional determination of junction locations. Two AFM-based techniques, scanning capacitance microscopy/spectroscopy (SCM/SCS) and scanning Kelvin probe force microscopy (SKPFM), were significantly improved and applied to the junction characterizations of multicrystalline silicon (mc-Si) cells. The SCS spectra were taken pixel by pixel by precisely controlling the tip positions in the junction area. The spectra reveal distinctive features that depend closely on the position relative to the electrical junction, which allows us to indentify the electrical junction location. In addition, SKPFM directly probes the built-in potential over the junction area modified by the surface band bending, which allows us to deduce the metallurgical junction location by identifying a peak of the electric field. Our results demonstrate resolutions of 10-40 nm, depending on the techniques (SCS or SKPFM). These direct electrical measurements with nanometer resolution and intrinsic two-dimensional capability are well suited for investigating the junction distribution of solar cells with lateral inhomogeneities.

  18. Two-Dimensional Measurement of n+-p Asymmetrical Junctions in Multicrystalline Silicon Solar Cells Using AFM-Based Electrical Techniques with Nanometer Resolution: Preprint

    SciTech Connect (OSTI)

    Jiang, C. S.; Moutinho, H. R.; Li, J. V.; Al-Jassim, M. M.; Heath, J. T.

    2011-07-01

    Lateral inhomogeneities of modern solar cells demand direct electrical imaging with nanometer resolution. We show that atomic force microscopy (AFM)-based electrical techniques provide unique junction characterizations, giving a two-dimensional determination of junction locations. Two AFM-based techniques, scanning capacitance microscopy/spectroscopy (SCM/SCS) and scanning Kelvin probe force microscopy (SKPFM), were significantly improved and applied to the junction characterizations of multicrystalline silicon (mc-Si) cells. The SCS spectra were taken pixel by pixel by precisely controlling the tip positions in the junction area. The spectra reveal distinctive features that depend closely on the position relative to the electrical junction, which allows us to indentify the electrical junction location. In addition, SKPFM directly probes the built-in potential over the junction area modified by the surface band bending, which allows us to deduce the metallurgical junction location by identifying a peak of the electric field. Our results demonstrate resolutions of 10-40 nm, depending on the techniques (SCS or SKPFM). These direct electrical measurements with nanometer resolution and intrinsic two-dimensional capability are well suited for investigating the junction distribution of solar cells with lateral inhomogeneities.

  19. ELECTRIC

    Office of Legacy Management (LM)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth DakotaRobbins and Myers CoMadison -T: Designation ofSEPE.ELECTRIC

  20. THE BC CRIBS & TRENCHES GEOPHYSICAL CHARACTERIZATION PROJECT ONE STEP FORWARD IN HANFORDS CLEANUP PROCESS

    SciTech Connect (OSTI)

    BENECKE, M.W.

    2005-11-17

    A geophysical characterization project was conducted at the BC Cribs and Trenches Area, located south of 200 East at the Hanford Site. The area consists of 26 waste disposal trenches and cribs, which received approximately 30 million gallons of liquid waste from the uranium recovery process and the ferrocyanide processes associated with wastes generated by reprocessing nuclear fuel. Waste discharges to BC Cribs contributed perhaps the largest liquid fraction of contaminants to the ground in the 200 Areas. The site also includes possibly the largest inventory of Tc-99 ever disposed to the soil at Hanford with an estimated quantity of 400 Ci. Other waste constituents included high volumes of nitrate and U-238. The geophysical characterization at the 50-acre site primarily included high resolution resistivity (HRR). The resistivity technique is a non-invasive method by which electrical resistivity data are collected along linear transects, and data are presented as continuous profiles of subsurface electrical properties. The transects ranged in size from about 400-700 meters and provided information down to depths of 60 meters. The site was characterized by a network of 51 HRR lines with a total of approximately 19.7 line kilometers of data collected parallel and perpendicular to the trenches and cribs. The data were compiled to form a three-dimensional representation of low resistivity values. Low resistivity, or high conductivity, is indicative of high ionic strength soil and porewater resulting from the migration of nitrate and other inorganic constituents through the vadose zone. High spatial density soil data from a single borehole, that included coincident nitrate concentrations, electrical conductivity. and Tc-99, were used to transform the electrical resistivity data into a nitrate plume. The plume was shown to extend laterally beyond the original boundaries of the waste site and, in one area, to depths that exceeded the characterization strategy.

  1. THE BC CRIBS & TRENCHES GEOPHYSICAL CHARACTERIZATION PROJECT ONE STEP FORWARD IN HANFORDS CLEANUP PROCESS

    SciTech Connect (OSTI)

    BENECKE, MN.W.

    2006-02-22

    A geophysical characterization project was conducted at the BC Cribs and Trenches Area, located south of 200 East at the Hanford Site. The area consists of 26 waste disposal trenches and cribs, which received approximately 30 million gallons of liquid waste from the uranium recovery process and the ferrocyanide processes associated with wastes generated by reprocessing nuclear fuel. Waste discharges to BC Cribs contributed perhaps the largest liquid fraction of contaminants to the ground in the 200 Areas. The site also includes possibly the largest inventory of Tc-99 ever disposed to the soil at Hanford with an estimated quantity of 400 Ci. Other waste constituents included high volumes of nitrate and U-238. The geophysical characterization at the 50 acre site primarily included high resolution resistivity (HRR). The resistivity technique is a non-invasive method by which electrical resistivity data are collected along linear transects, and data are presented as continuous profiles of subsurface electrical properties. The transects ranged in size from about 400-700 meters and provided information down to depths of 60 meters. The site was characterized by a network of 51 HRR lines with a total of approximately 19.7 line kilometers of data collected parallel and perpendicular to the trenches and cribs. The data were compiled to form a three-dimensional representation of low resistivity values. Low resistivity, or high conductivity, is indicative of high ionic strength soil and porewater resulting from the migration of nitrate and other inorganic constituents through the vadose zone. High spatial density soil data from a single borehole, that included coincident nitrate concentrations, electrical conductivity, and Tc-99, were used to transform the electrical resistivity data into a nitrate plume. The plume was shown to extend laterally beyond the original boundaries of the waste site and, in one area, to depths that exceeded the characterization strategy. It is unknown whether the plume reached the water table, located approximately 104 meters below ground surface.

  2. DEPARTMENT OF GEOLOGY & GEOPHYSICS UNDERGRADUATE

    E-Print Network [OSTI]

    DEPARTMENT OF GEOLOGY & GEOPHYSICS UNDERGRADUATE SURVIVAL MANUAL 2014-2015 SCHOOL OF OCEAN & EARTH SCIENCE & TECHNOLOGY UNIVERSITY OF HAWAI`I AT MNOA Updated January 2015 #12;INTRODUCTION 1 Geology OF GEOLOGY & GEOPHYSICS _ 2 Who We Are _ 2 Where To Get Help _ 2 POLICIES, PROCEDURES & REQUIREMENTS 3

  3. Expedited Site Characterization geophysics: Geophysical methods and tools for site characterization

    SciTech Connect (OSTI)

    Goldstein, N.E.

    1994-03-01

    This report covers five classes of geophysical technologies: Magnetics; Electrical/electromagnetic; Seismic reflection; Gamma-ray spectrometry; and Metal-specific spectrometry. Except for radiometry, no other classes of geophysical tedmologies are specific for direct detection of the types of contaminants present at the selected sites. For each of the five classes covered, the report gives a general description of the methodology, its field use, and its general applicability to the ESC Project. In addition, the report gives a sample of the most promising instruments available for each class, including the following information: Hardware/software attributes; Purchase and rental costs; Survey rate and operating costs; and Other applicable information based on case history and field evaluations.

  4. 152 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 53, NO. 1, JANUARY 2005 High-Speed Electrical Backplane Transmission

    E-Print Network [OSTI]

    Palermo, Sam

    -Speed Electrical Backplane Transmission Using Duobinary Signaling Jeffrey H. Sinsky, Senior Member, IEEE, Marcus to binary. For 10-Gb/s data transmission, we demonstrate a bit error rate 10 13 through electrical backplane Duelk, Member, IEEE, and Andrew Adamiecki, Member, IEEE Abstract--High-speed electrical data

  5. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics Colorado School of Mines CGEM Alisa Marie Green #12;Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: November 06, 2003 Advisor: Dr. Yaoguo Li

  6. Department of Geophysics Colorado School of Mines

    E-Print Network [OSTI]

    Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics Colorado School of Mines CGEM Dongjie Cheng #12;#12;Department of Geophysics Colorado School of Mines Golden, CO 80401 http://www.geophysics.mines.edu/cgem Defended: December 2003 Advisor: Dr. Yaoguo Li (GP

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

    E-Print Network [OSTI]

    Parker, Beatrice Smith

    2012-01-01

    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 ...

  8. wavelet domain inversion and joint deconvolution/interpolation of geophysical data

    E-Print Network [OSTI]

    Kane, Jonathan A. (Jonathan Andrew), 1973-

    2003-01-01

    This thesis presents two innovations to geophysical inversion. The first provides a framework and an algorithm for combining linear deconvolution methods with geostatistical interpolation techniques. This allows for sparsely ...

  9. Geophysical Research Abstracts Vol. 12, EGU2010-PREVIEW, 2010

    E-Print Network [OSTI]

    Boyer, Edmond

    (s) 2010 Overview of seismic imagery techniques applied to landslides characterization. Gilles Grandjean, geophysical methods based on seismic surveying appear to be well-adapted to investigate the morpho and non-intrusive measurements of acoustic (Vp) or shear (Vs) wave velocity, two important physical

  10. APPLICATION OF BOREHOLE GEOPHYSICS AT AN EXPERIMENTAL WASTE STORAGE SITE

    E-Print Network [OSTI]

    Nelson, P.H.

    2014-01-01

    letal Ore Deposits, 11 in Geophysics and Geochemistry in the11 Applications of Borehole Geophysics to Water-ResourcesAPPLICATION OF BOREHOLE GEOPHYSICS AT AN EXPERIMENTAL WASTE

  11. Lunar geophysics: The Moon's fundamental shape and paleomagnetism studies

    E-Print Network [OSTI]

    Perera, Viranga

    2014-01-01

    Tectonics.   Reviews  of  Geophysics  and  Space   Physics  SANTA CRUZ Lunar geophysics: The Moon’s fundamental shapeViranga Perera Lunar geophysics: The Moon’s fundamental

  12. Evaluation of electric and magnetic fields distribution and SAR induced in 3D models of water containers by radiofrequency radiation using FDTD and FEM simulation techniques

    E-Print Network [OSTI]

    Abdelsamie, Maher A A; Mustafa, Shuhaimi; Hashim, Dzulkifly

    2014-01-01

    In this study, two software packages using different numerical techniques FEKO 6.3 with Finite-Element Method (FEM) and XFDTD 7 with Finite Difference Time Domain Method (FDTD) were used to assess exposure of 3D models of square, rectangular, and pyramidal shaped water containers to electromagnetic waves at 300, 900, and 2400 MHz frequencies. Using the FEM simulation technique, the peak electric field of 25, 4.5, and 2 V/m at 300 MHz and 15.75, 1.5, and 1.75 V/m at 900 MHz were observed in pyramidal, rectangular, and square shaped 3D container models, respectively. The FDTD simulation method confirmed a peak electric field of 12.782, 10.907, and 10.625 V/m at 2400 MHz in the pyramidal, square, and rectangular shaped 3D models, respectively. The study demonstrated an exceptionally high level of electric field in the water in the two identical pyramid shaped 3D models analyzed using the two different simulation techniques. Both FEM and FDTD simulation techniques indicated variations in the distribution of elect...

  13. Geophysical data fusion for subsurface imaging. Phase 1

    SciTech Connect (OSTI)

    Hoekstra, P.; Vandergraft, J.; Blohm, M.; Porter, D.

    1993-08-01

    A geophysical data fusion methodology is under development to combine data from complementary geophysical sensors and incorporate geophysical understanding to obtain three dimensional images of the subsurface. The research reported here is the first phase of a three phase project. The project focuses on the characterization of thin clay lenses (aquitards) in a highly stratified sand and clay coastal geology to depths of up to 300 feet. The sensor suite used in this work includes time-domain electromagnetic induction (TDEM) and near surface seismic techniques. During this first phase of the project, enhancements to the acquisition and processing of TDEM data were studied, by use of simulated data, to assess improvements for the detection of thin clay layers. Secondly, studies were made of the use of compressional wave and shear wave seismic reflection data by using state-of-the-art high frequency vibrator technology. Finally, a newly developed processing technique, called ``data fusion,`` was implemented to process the geophysical data, and to incorporate a mathematical model of the subsurface strata. Examples are given of the results when applied to real seismic data collected at Hanford, WA, and for simulated data based on the geology of the Savannah River Site.

  14. Multi-Agent Based Techniques for Coordinating the Distribution of Electricity in a Micro-Grid Environment

    E-Print Network [OSTI]

    Southampton, University of

    . 2 Background Research To reduce carbon emissions and ensure that the UK low car- bon emissions plan to the current national grid, the in- creasing demand for electricity will only result in more car- bon emissions carbon emissions. In order to ensure that this challenging low carbon emissions plan is met, not only

  15. INSTITUTE OF GEOPHYSICS AND PLANETARY PHYSICS (IGPP)

    E-Print Network [OSTI]

    INSTITUTE OF GEOPHYSICS AND PLANETARY PHYSICS (IGPP) LOS ALAMOS NATIONAL LABORATORY (LANL) FY11, 2010 1. INTRODUCTION The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National of California's Systemwide Institute of Geophysics and Planetary Physics. Its science mission is to promote

  16. 2010 Western Pacific Geophysics Search Results

    E-Print Network [OSTI]

    Ng, Chung-Sang

    2010 Western Pacific Geophysics Meeting Search Results Cite abstracts as Author(s) (2010), Title: Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United States AU: Ragunathan, S EM: srivatta@gi.alaska.edu AF: Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United

  17. Geophysical Institute. Biennial report, 1993-1994

    SciTech Connect (OSTI)

    1996-01-01

    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.

  18. ELECTRICAL CONDUCTIVITY OF THE DEEP MANTLE

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    ELECTRICAL CONDUCTIVITY OF THE DEEP MANTLE Jakub Vel´imsk´y Department of Geophysics Faculty´imsk´y (CUP) Electrical conductivity of the deep mantle C2C Mari´ansk´e l´azne 2010 1 / 39 #12;Introduction Sensitivity of EMI data to 3-D conductivity in D" Conclusions J. Vel´imsk´y (CUP) Electrical conductivity

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

    E-Print Network [OSTI]

    by conventional processing techniques and geophysical inversion. Vazante deposit in Brazil The Vazante willemite. The mineralized portion of the fault zone extends more than 5 kilometers along strike and is known from drilling

  20. Hydrogeological-Geophysical Methods for Subsurface Site Characterization - Final Report

    SciTech Connect (OSTI)

    Rubin, Yoram

    2001-01-01

    The goal of this research project is to increase water savings and show better ecological control of natural vegetation by developing hydrogeological-geophysical methods for characterizing the permeability and content of water in soil. The ground penetrating radar (GPR) tool was developed and used as the surface geophysical method for monitoring water content. Initial results using the tool suggest that surface GPR is a viable technique for obtaining precision volumetric water content profile estimates, and that laboratory-derived petrophysical relationships could be applied to field-scale GPR data. A field-scale bacterial transport study was conducted within an uncontaminated sandy Pleistocene aquifer to evaluate the importance of heterogeneity in controlling the transport of bacteria. Geochemical, hydrological, geological, and geophysical data were collected to characterize the site prior to and after chemical and bacterial injection experiments. Study results shows that, even within the fairly uniform shallow marine deposits of the narrow channel focus area, heterogeneity existed that influenced the chemical tracer transport over lateral distances of a few meters and vertical distances of less than a half meter. The interpretation of data suggest that the incorporation of geophysical data with limited hydrological data may provide valuable information about the stratigraphy, log conductivity values, and the spatial correlation structure of log conductivity, which have traditionally been obtainable only by performing extensive and intrusive hydrological sampling.

  1. 2012 Fellow American Geophysical Union

    E-Print Network [OSTI]

    Kurapov, Alexander

    ) are critical to the intensity of ocean currents, to long- and short-term climate variations, and the health2012 Fellow American Geophysical Union James Moum, professor in the College of Earth, Ocean contributions to our understanding of ocean mixing in coastal, abyssal and Equatorial regimes using innovative

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

    SciTech Connect (OSTI)

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

    2011-06-17

    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.

  3. Expedited Site Characterization Geophysics: Geophysical Methods and Tools for Site Characterization

    E-Print Network [OSTI]

    Goldstein, N.E.

    2009-01-01

    EXPEDITED ITE S CHARACTERIZATION EOPHYSICS G GEOPHYSICALM AND TOOLSFORSITE CHARACTERIZATION NORMAN E. GOLDSTEINExpedited Site Characterization Geophysics CONTENTS

  4. Geophysical data fusion for subsurface imaging. Final report

    SciTech Connect (OSTI)

    NONE

    1995-10-01

    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.

  5. DEPARTMENT OF GEOLOGY AND GEOPHYSICS UNDERGRADUATE SCHOLARSHIP APPLICATION

    E-Print Network [OSTI]

    Johnson, Cari

    DEPARTMENT OF GEOLOGY AND GEOPHYSICS UNDERGRADUATE SCHOLARSHIP APPLICATION Environment Geophysics Other: GeoEng Earth Science Teaching Anticipated & Geophysics 115 S. 1460 E. Room 383, Salt Lake City, UT 84112-0102 Phone 801

  6. Towards Real Earth Models --Computational Geophysics on Unstructured Tetrahedral Meshes?

    E-Print Network [OSTI]

    Farquharson, Colin G.

    Towards Real Earth Models -- Computational Geophysics on Unstructured Tetrahedral Meshes? Colin tetrahedral meshes. EM geophysics on unstructured tetrahedral meshes. Disadvantages, difficulties, challenges. Conclusions. #12;Outline: Geological models! Advantages of unstructured tetrahedral meshes. EM geophysics

  7. SAGE, Summer of Applied Geophysical Experience

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

    enhance a student's knowledge by going beyond a standard classroom-based geophysics curriculum, and to encourage qualified students in related fields to consider careers in...

  8. Institute of Geophysics, Planetary Physics and Signatures

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

    IGPPS Institute of Geophysics, Planetary Physics and Signatures High quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience and...

  9. On the Quantum Aspects of Geophysics

    E-Print Network [OSTI]

    F. Darabi

    2004-10-10

    We introduce a simple quantum mechanical justification for the formation of folded mountains. It is very appealing to develop this idea to a theory of {\\it Quantum Geophysics}

  10. Regional geophysics, Cenozoic tectonics and geologic resources...

    Open Energy Info (EERE)

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

  11. High Precision Geophysics & Detailed Structural Exploration ...

    Open Energy Info (EERE)

    reservoir and identification of deep up flow targets. These surveys and the drilling process have been designed to severely limit the impact of the exploration. The geophysics...

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

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

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

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

    Open Energy Info (EERE)

    Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Borehole geophysics...

  14. UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS

    E-Print Network [OSTI]

    UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS Graduate Admissions 1680 East * Geophysics & Tectonics; Marine & Environmental Geology; Planetary Geosciences; Volcanology, Geochemistry

  15. Understanding biogeobatteries: Where geophysics meets microbiology

    SciTech Connect (OSTI)

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

    2009-08-15

    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.

  16. Bachelor of Science, Geophysics, 2013-2014 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Geophysics, 2013-2014 Name ID# Date General Degree Requirements Residency with Lab 4 COMPSCI 115 Introduction to C 2 GEOPH 201 Seeing the Unseen: an Introduction to Geophysics 4 GEOPH 300 Physics of the Earth 3 GEOPH 305 Applied Geophysics 3 GEOPH 420 Geophysical Applications

  17. PhD in Cryosphere Geophysics The Cryosphere Geophysics and Remote Sensing group (CryoGARs) at Boise

    E-Print Network [OSTI]

    Barrash, Warren

    PhD in Cryosphere Geophysics The Cryosphere Geophysics and Remote Sensing group (CryoGARs) at Boise on the GrIS. A solid background in field geophysics is preferred. The successful applicant will join the CryoGars group and Center for Geophysical Investigation of the Shallow Subsurface (CGISS) at Boise

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

    E-Print Network [OSTI]

    Johnson, Cari

    Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year): General Academic Advising for Geology & Geophysics Majors ­ Ms. Judy.dinter@utah.edu, office: 321 FASB, phone 801-581-7937) Faculty Advisor for Geophysics Emphasis, Geoscience Major ­ Prof

  19. Annealing effects on structural, electrical and optical properties of antimony-tinoxide thin films deposited by sol gel dip coating technique

    SciTech Connect (OSTI)

    Lekshmy, S. Sujatha, E-mail: jolly2jolly@gmail.com; Anitha, V. S., E-mail: jolly2jolly@gmail.com; Berlin, I. John, E-mail: jolly2jolly@gmail.com; Joy, K., E-mail: jolly2jolly@gmail.com [Thin film Laboratory, Post Graduate and Research Department of Physics, Mar Ivanios College, Thiruvananthapuram 695 015 (India)

    2014-01-28

    Antimony-doped tin dioxide possess interesting physical and chemical properties. These properties have a wide range of applications such as catalysis and optoelectronic devices. In the present study, antimony-doped tin oxide (SnO2:Sb) thin films were deposited on the quartz substrates by sol-gel dip coating technique. The films were annealed at temperatures 350°C, 550°C and 850°C in air for 2 hours. The structure and surface morphologies were observed by X-ray diffraction (XRD) and Scanning electron microscopy (SEM). XRD patterns shows tetragonal structure for the SnO2:Sb films annealed at different temperatures. Crystallite size increased from 6 to 14 nm as annealing temperature increased from 350°C to 850°C. SEM studies reveals crack free and smooth surface for all the films. The grains are found to be homogenously distributed for films annealed at higher temperature. The electrical conductivity of the films annealed at 350°C and 550°C decreased and increased for the films annealed at 850°C. The optical properties of the films were investigated in the UV-visible-NIR region (200-900 nm) using UV spectra. The transmittance of the films decreased for films annealed at higher temperature. The optical energy band gap values (4.13 eV-4.83 eV) increased with the increase in annealing temperature.

  20. GEOPHYSICS

    E-Print Network [OSTI]

    19 800 sismi ues dans les milieux strati?és a deux et trois dimensions: contri ution a la construction et a lime relation des sismo- grammes synthetiques: These

  1. Geophysics

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Low LET Ionizing RadiationSNACGeographyGeometry

  2. Using Electricity",,,"Electricity Consumption",,,"Electricity...

    U.S. Energy Information Administration (EIA) Indexed Site

    . Total Electricity Consumption and Expenditures, 2003" ,"All Buildings* Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of Buildings...

  3. Integration & Co-development of a Geophysical CO2 Monitoring Suite

    SciTech Connect (OSTI)

    Friedmann, S J

    2007-07-24

    Carbon capture and sequestration (CCS) has emerged as a key technology for dramatic short-term reduction in greenhouse gas emissions in particular from large stationary. A key challenge in this arena is the monitoring and verification (M&V) of CO2 plumes in the deep subsurface. Towards that end, we have developed a tool that can simultaneously invert multiple sub-surface data sets to constrain the location, geometry, and saturation of subsurface CO2 plumes. We have focused on a suite of unconventional geophysical approaches that measure changes in electrical properties (electrical resistance tomography, electromagnetic induction tomography) and bulk crustal deformation (til-meters). We had also used constraints of the geology as rendered in a shared earth model (ShEM) and of the injection (e.g., total injected CO{sub 2}). We describe a stochastic inversion method for mapping subsurface regions where CO{sub 2} saturation is changing. The technique combines prior information with measurements of injected CO{sub 2} volume, reservoir deformation and electrical resistivity. Bayesian inference and a Metropolis simulation algorithm form the basis for this approach. The method can (a) jointly reconstruct disparate data types such as surface or subsurface tilt, electrical resistivity, and injected CO{sub 2} volume measurements, (b) provide quantitative measures of the result uncertainty, (c) identify competing models when the available data are insufficient to definitively identify a single optimal model and (d) rank the alternative models based on how well they fit available data. We present results from general simulations of a hypothetical case derived from a real site. We also apply the technique to a field in Wyoming, where measurements collected during CO{sub 2} injection for enhanced oil recovery serve to illustrate the method's performance. The stochastic inversions provide estimates of the most probable location, shape, volume of the plume and most likely CO{sub 2} saturation. The results suggest that the method can reconstruct data with poor signal to noise ratio and use hard constraints available from many sites and applications. External interest in the approach and method is high, and already commercial and DOE entities have requested technical work using the newly developed methodology for CO{sub 2} monitoring.

  4. Department of Geology & Geophysics University of Hawaii

    E-Print Network [OSTI]

    Department of Geology & Geophysics University of Hawaii THE APPLICATION CHECKLIST SEND THESE ITEMS TO : University of Hawaii Graduate Division Admissions Office 2540 Maile Way, Spalding Hall 354 Honolulu, HI 96822 Original application and fees. http://www.hawaii

  5. Assessing Soil Strength From Geophysical Surveys 

    E-Print Network [OSTI]

    Khan, Rehan

    2014-04-24

    A study is presented to develop framework for correlating sand strength (friction angle) to geophysical measurements, primarily shear wave and body wave velocities. Triaxial tests accompanied by wave velocity measurements was performed to generate a...

  6. Wave radiation in simple geophysical models 

    E-Print Network [OSTI]

    Murray, Stuart William

    2013-07-01

    Wave radiation is an important process in many geophysical flows. In particular, it is by wave radiation that flows may adjust to a state for which the dynamics is slow. Such a state is described as “balanced”, meaning ...

  7. Engineering and environmental geophysics at the millennium

    E-Print Network [OSTI]

    Steeples, Don W.

    2001-01-01

    Near?surface geophysics is being applied to a broader spectrum of problems than ever before, and new application areas are arising continually. Currently, the tools used to examine the near?surface environment include a variety of noninvasive...

  8. Geophysics: Building E5190 decommissioning, Aberdeen Proving Ground

    SciTech Connect (OSTI)

    Miller, S.F.; Thompson, M.D.; McGinnis, M.G.; McGinnis, L.D.

    1992-07-01

    Building E5190 is one of ten potentially contaminated sites in the Canal Creek area of the Edgewood section of Aberdeen Proving Ground examined by a geophysical team from Argonne National Laboratory in April and May 1992. A noninvasive geophysical survey, including the complementary technologies of magnetics, electrical resistivity, and ground-penetrating radar, was conducted around the perimeter as a guide to developing a sampling and monitoring program prior to decommissioning and dismantling the building. The magnetics surveys indicated that multistation, positive magnetic sources are randomly distributed north and west of the building. Two linear trends were noted: one that may outline buried utility lines and another that is produced by a steel-covered trench. The resistivity profiling indicated three conductive zones: one due to increased moisture in a ditch, one associated with buried utility lines, and a third zone associated with the steel-covered trench. Ground-penetrating radar imaging detected two significant anomalies, which were correlated with small-amplitude magnetic anomalies. The objectives of the study -- to detect and locate objects and to characterize a located object were achieved.

  9. 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.

  10. An introduction to electrical resistivity in geophysics | Open Energy

    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 QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYork Jump to:Hempstead

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

    SciTech Connect (OSTI)

    Crook, N.; McNeill, M.; Dunham, Ralph; Glaser, Danney R.

    2014-02-26

    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.

  12. UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS

    E-Print Network [OSTI]

    UNIVERSITY OF HAWAII AT MANOA DEPARTMENT OF GEOLOGY AND GEOPHYSICS Graduate Admissions 1680 East's admissibility into the Graduate Program in Geology and Geophysics at the University of Hawaii at Manoa. Strongly

  13. Electrical resistivity tomography survey for delineating uncharted mine galleries in West Bengal, India

    SciTech Connect (OSTI)

    Maillol, J.M. [Univ. of Alberta, Edmonton, Alberta (Canada). Dept. of Physics] [Univ. of Alberta, Edmonton, Alberta (Canada). Dept. of Physics; Seguin, M.K. [Univ. Laval, Ste-Foy, Quebec (Canada). Dept. de Geologie et Genie Geologique] [Univ. Laval, Ste-Foy, Quebec (Canada). Dept. de Geologie et Genie Geologique; Gupta, O.P.; Akhauri, H.M. [Central Mine Planning and Design Inst., Ranchi (India)] [Central Mine Planning and Design Inst., Ranchi (India); Sen, N. [Mining, Geology and Metallurgical Inst., Calcutta (India)] [Mining, Geology and Metallurgical Inst., Calcutta (India)

    1999-03-01

    The history of subsidence, fires, flooding and other kinds of environmental hazards related to shallow coal workings in India goes back to colonial times some 300 years ago. As coal production accelerated in modern times, so did the environmental and socio-economic drawbacks related to exploitation. In the mid-1980s, a hydropneumatic sand-stowing method was developed to fill in abandoned galleries but their exact location had to be known. Unfortunately, most of these old workings are uncharted and consequently large tracts of land cannot be stabilized. A research program making use of integrated surface, borehole and cross-hole geophysical methods was undertaken over a five-year span to try to solve this problem. Surface geophysical methods, being cheaper and faster than their cross- and downhole counterparts, were used to cover larger areas on an exploratory basis, while cross-hole methods were employed to locate more accurately one or a network of galleries to be perforated by drillhole(s) and used as a conduit for sand stowing. The authors report the results of one of the cross-hole geophysical methods: electrical resistivity tomography (ERT). A pole-dipole configuration is used and both cross-hole and surface-borehole methodologies are tested. Forward modelling and inversion of synthetic data making use of downhole and surface physical and geometrical parameters are presented first. This phase is followed by the inversion of real data. It is concluded that ERT is not applicable for the detection of dry voids, but is effective in a waterlogged environment which is estimated to represent 85--90% of the cases. In waterlogged galleries, ERT is applicable in both cross-hole and surface-downhole modes, the latter allowing a larger surface coverage at low cost. ERT is thus a reliable geophysical tool to image water-filled voids and an adequate technique to address environmental and geotechnical problems.

  14. Using electrokinetic phenomena and electrical resistance tomography to characterize the movement of subsurface fluids

    DOE Patents [OSTI]

    Ramirez, Abelardo L. (Pleasanton, CA); Cooper, John F. (Oakland, CA); Daily, William D. (Livermore, CA)

    1996-01-01

    This invention relates generally to the remote detections of subsurface liquid contaminants using in combination a geophysical technique known as ERT and an EKS. Electrokinetic transport is used to enhance the ability of electrical resistance tomography (ERT) to detect position and movement of subsurface contaminant liquids, particles or ions. ERT images alone are difficult to interpret because of natural inhomogeneities in soil composition and electrical properties. By subtracting two or more ERT images obtained before and after field induced movement, a high contrast image of a plume of distinct electrokinetic properties can be seen. The invention is applicable to important subsurface characterization problems including, as examples, (1) detection of liquid-saturated plumes of contaminants such as those associated with leaks from underground storage tanks containing hazardous concentrated electrolytes, (2) detection and characterization of soils contaminated with organic pollutants such as droplets of gasoline; and (3) monitoring the progress of electrokinetic containment or clean up of underground contamination.

  15. Using electrokinetic phenomena and electrical resistance tomography to characterize the movement of subsurface fluids

    DOE Patents [OSTI]

    Ramirez, A.L.; Cooper, J.F.; Daily, W.D.

    1996-02-27

    This invention relates generally to the remote detections of subsurface liquid contaminants using in combination a geophysical technique known as ERT and an EKS. Electrokinetic transport is used to enhance the ability of electrical resistance tomography (ERT) to detect position and movement of subsurface contaminant liquids, particles or ions. ERT images alone are difficult to interpret because of natural inhomogeneities in soil composition and electrical properties. By subtracting two or more ERT images obtained before and after field induced movement, a high contrast image of a plume of distinct electrokinetic properties can be seen. The invention is applicable to important subsurface characterization problems including, as examples, (1) detection of liquid-saturated plumes of contaminants such as those associated with leaks from underground storage tanks containing hazardous concentrated electrolytes, (2) detection and characterization of soils contaminated with organic pollutants such as droplets of gasoline; and (3) monitoring the progress of electrokinetic containment or clean up of underground contamination. 1 fig.

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

    E-Print Network [OSTI]

    2013-07-05

    hydrocarbon exploration geophysics, mining and reservoir characterization and production. Local variations in the fluid and solid matrix properties, fine layering,.

  17. MULTIFRACTALS, GENERALIZED SCALE INVARIANCE AND COMPLEXITY IN GEOPHYSICS

    E-Print Network [OSTI]

    Lovejoy, Shaun

    MULTIFRACTALS, GENERALIZED SCALE INVARIANCE AND COMPLEXITY IN GEOPHYSICS DANIEL SCHERTZER LEESU, Que. H3A 2T8, Canada lovejoy@physics.mcgill.ca Received The complexity of geophysics has been with anisotropy, which is rather ubiquitous in geophysics. Keywrods: multifractals, generalized scale invariance

  18. Uncertainty and Predictability in Geophysics: Chaos and Multifractal Insights

    E-Print Network [OSTI]

    Lovejoy, Shaun

    Uncertainty and Predictability in Geophysics: Chaos and Multifractal Insights Daniel Schertzer Department, McGill University, Montreal, Canada Uncertainty and error growth are crosscutting geophysical extremes. The focus is now on time-space geophysical scaling behavior: their multifractality. It is found

  19. Scale, scaling and multifractals in geophysics: twenty Shaun Lovejoy1

    E-Print Network [OSTI]

    Lovejoy, Shaun

    Scale, scaling and multifractals in geophysics: twenty years on Shaun Lovejoy1 and Daniel Schertzer number of degrees of freedom approaches to nonlin- ear geophysics: a) the transition from fractal are generally necessary for geophysical applications. We illustrate these ideas with data analyses from both

  20. Geophysical Research Abstracts Vol. 12, EGU2010-4885, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geophysical Research Abstracts Vol. 12, EGU2010-4885, 2010 EGU General Assembly 2010 © Author(s) 2010 The DIGISOIL multi-sensor system: from geophysical measurements to soil properties. Gilles geophysical technologies for answering this societal demand. To this aim, DIGISOIL addresses four issues

  1. Nathan L. B. Bangs ADDRESS Institute for Geophysics

    E-Print Network [OSTI]

    Yang, Zong-Liang

    Nathan L. B. Bangs ADDRESS Institute for Geophysics The University of Texas Pickle Research Campus@utig.ig.utexas.edu EDUCATION B.A. Williams College, 1983, Geology and Physics M.A. Columbia University, 1986, Marine Geophysics M. Phil. Columbia University, 1987, Marine Geophysics Ph.D. Columbia University, 1991, Marine

  2. Syllabus: Applied Environmental Geophysics MGG 525 Fall 2011, 3 credits

    E-Print Network [OSTI]

    Miami, University of

    1 Syllabus: Applied Environmental Geophysics MGG 525 Fall 2011, 3 credits (Version 110824e) Instructor: Mark Grasmueck, Associate Professor Marine Geology and Geophysics RSMAS University of Miami Tel: The purpose of this course is to familiarize you with the fundamentals of near-surface geophysical site

  3. Geophysical Research Abstracts Vol. 12, EGU2010-8384, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geophysical Research Abstracts Vol. 12, EGU2010-8384, 2010 EGU General Assembly 2010 © Author are known to be highly dependent on local site characteristics. Therefore combining geophysical meth- ods. In order to calibrate geophysical measurements, obser- vations of 130 boreholes (4 meters deep) were made

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geophysical Research Abstracts Vol. 12, EGU2010-11992, 2010 EGU General Assembly 2010 © Author(s) 2010 Contribution of the airborne geophysical survey to the study of the regolith : A case study of regolith properties: superficial studies combining geology, geochemistry and geophysics become essential

  5. Geophysical Research Abstracts Vol. 12, EGU2010-4993, 2010

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geophysical Research Abstracts Vol. 12, EGU2010-4993, 2010 EGU General Assembly 2010 © Author(s) 2010 Geophysical observations at cavity collapse Philippe Jousset, Behrooz Bazargan-Sabet, François relate the variations of the brine pumping rate with the evolutions of the induced geophysical signals

  6. NATIONAL GEOPHYSICAL DATA CENTER NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION

    E-Print Network [OSTI]

    NATIONAL GEOPHYSICAL DATA CENTER NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION U.S. DEPARTMENT Graig McHendrie Stuart M. Smith National Geophysical Data Center Boulder, Colorado September 1977 countries participated in a workshop at the National Geophysical Data Center (NGDC) in Boulder, Colorado

  7. 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

  8. Using Electricity",,,"Electricity Consumption",,,"Electricity...

    U.S. Energy Information Administration (EIA) Indexed Site

    A. Total Electricity Consumption and Expenditures for All Buildings, 2003" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of...

  9. Electricity",,,"Electricity Consumption",,,"Electricity Expenditures...

    U.S. Energy Information Administration (EIA) Indexed Site

    C9. Total Electricity Consumption and Expenditures, 1999" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number of Buildings...

  10. Electricity",,,"Electricity Consumption",,,"Electricity Expenditures...

    U.S. Energy Information Administration (EIA) Indexed Site

    DIV. Total Electricity Consumption and Expenditures by Census Division, 1999" ,"All Buildings Using Electricity",,,"Electricity Consumption",,,"Electricity Expenditures" ,"Number...

  11. GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 22, PAGES 2615-3618, NOVEMBER 15, 2000 Geodetic network optimization for geophysical parameters

    E-Print Network [OSTI]

    Tingley, Joseph V.

    GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 22, PAGES 2615-3618, NOVEMBER 15, 2000 3615 Geodetic network optimization for geophysical parameters Geoffrey Blewitt Nevada Bureau of Mines and Geology is gener- alized here, to seek the network configuration that optimizes the precision of geophysical

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

    E-Print Network [OSTI]

    Johnson, Cari

    Geology and Geophysics at the University of Utah Advisors for Undergraduate Geology & Geophysics Students (2014-15 academic year): General Academic Advising for Geology & Geophysics Majors ­ Ms. Judy for Geology Emphasis, Geoscience Major ­ Prof. Brenda Bowen (email: brenda.bowen@ utah.edu, office: 341 FASB

  13. GEOPHYSICS FOR SLOPE STABILITY ROBERT HACK

    E-Print Network [OSTI]

    Hack, Robert

    GEOPHYSICS FOR SLOPE STABILITY ROBERT HACK Section Engineering Geology, Centre for Technical-mail: hack@itc.nl (Received 2 June, 2000; Accepted 4 September, 2000) Abstract. A pre-requisite in slope Publishers. Printed in the Netherlands. #12;424 ROBERT HACK the slope material with, for example, manganese

  14. Leasing and Exploration * Seismic geophysical surveys

    E-Print Network [OSTI]

    #12;Leasing and Exploration * Seismic geophysical surveys * Exploratory drilling using various of these incremental steps; leasing and exploration. Subsequent phases of OCS development (production, transportation) prepared by MMS, as well as pertinent research on the bowhead whale and matters related to oil exploration

  15. Geophysics of Chemical Heterogeneity in the Mantle

    E-Print Network [OSTI]

    Stixrude, Lars

    , transition zone Abstract Chemical heterogeneity, produced by the near-surface rock cycle and dom- inatedGeophysics of Chemical Heterogeneity in the Mantle Lars Stixrude and Carolina Lithgow. This lithologic-scale chemical het- erogeneity may survive in the mantle for as long as the age of Earth because

  16. Transdimensional Approaches to Geophysical Inverse Problems

    E-Print Network [OSTI]

    Bodin, Thomas

    complicated and quantitative mechanisms with simple qualitative concepts. This research was supported underTransdimensional Approaches to Geophysical Inverse Problems Thomas Bodin October 2010 A thesis Except where otherwise indicated in the text, the research described in this thesis is my own original

  17. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    Gordon, Arnold L.

    GeophysicalResearchLetters RESEARCH LETTER 10.1002/2014GL061661 Key Points: · The 1934 drought), The worst North American drought year of the last millennium: 1934, Geophys. Res. Lett., 41, doi:10 North American drought year of the last millennium: 1934 Benjamin I. Cook1,2 , Richard Seager2

  18. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    GeophysicalResearchLetters RESEARCH LETTER 10.1002/2014GL061661 Key Points: · The 1934 drought), The worst North American drought year of the last millennium: 1934, Geophys. Res. Lett., 41, 7298­7305, doi Published online 18 OCT 2014 The worst North American drought year of the last millennium: 1934 Benjamin I

  19. Wavelet correlations to reveal multiscale coupling in geophysical systems

    E-Print Network [OSTI]

    Casagrande, Erik; Miralles, Diego; Entekhabi, Dara; Molini, Annalisa

    2015-01-01

    The interactions between climate and the environment are highly complex. Due to this complexity, process-based models are often preferred to estimate the net magnitude and directionality of interactions in the Earth System. However, these models are based on simplifications of our understanding of nature, thus are unavoidably imperfect. Conversely, observation-based data of climatic and environmental variables are becoming increasingly accessible over large scales due to the progress of space-borne sensing technologies and data-assimilation techniques. Albeit uncertain, these data enable the possibility to start unraveling complex multivariable, multiscale relationships if the appropriate statistical methods are applied. Here, we investigate the potential of the wavelet cross-correlation method as a tool for identifying multiscale interactions, feedback and regime shifts in geophysical systems. The ability of wavelet cross-correlation to resolve the fast and slow components of coupled systems is tested on syn...

  20. College of Natural Science and Mathematics Department of Geology and Geophysics

    E-Print Network [OSTI]

    Hartman, Chris

    gEophySicS College of Natural Science and Mathematics Department of Geology and Geophysics 907 credits The geophysics program at UAF specializes in several broad areas of re- search and is closely connected with the Geophysical Institute. Although much of the research conducted by geophysics faculty

  1. Selecting surface geophysical methods for geological, hydrological, geotechnical, and environmental investigation: The rationale for the ASTM provisional guide

    SciTech Connect (OSTI)

    Saunders, W.; Benson, R.; Snelgrove, F.; Soloyanis, S.

    1999-07-01

    The ASTM Provisional Guide (PS 78-97) for Selecting Surface Geophysical Methods was developed as a guide for project managers, contractors, geologists, and geophysicists to assist in selecting the most likely geophysical method or methods to conduct specific subsurface investigations. Numerous surface geophysical methods and techniques exist that can be used to determine subsurface soil and rock properties and their distribution. These same methods are also widely used to investigate and locate manmade structures such as buried objective and landfills. This paper discusses the general uses of surface geophysics and the use of the provisional guide. This paper is not intended to be used as he guide. The ASTM Provisional Guide provides direction in selecting the most appropriate geophysical method or methods for a specific application under general site conditions. Secondary methods are also proposed that, under certain circumstances, should be evaluated before a final selection is made. Some typical conditions under which a primary or secondary method might or might not provide satisfactory results are given in the provisional guide. references for further information about selected methods and to method-specific ASTM guides are also provided. Secondary methods usually have less than desired performance, higher cost, or greater labor requirements as compared to the primary methods.

  2. Geophysical constraints on contaminant transport modeling in a heterogeneous fluvial aquifer

    E-Print Network [OSTI]

    Zheng, Chunmiao

    Geophysical constraints on contaminant transport modeling in a heterogeneous fluvial aquifer Jerry the geophysically derived hydraulic conductivity representation in numerical simulations of the natural the effectiveness of geophysically derived and flowmeter based representations of the hydraulic conductivity field

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

    E-Print Network [OSTI]

    Crawford, Ian

    Applying petroleum geophysics to astrophysics: Quantitative 4D seismic study, is to a significant extent based on tomographic methods developed in geophysics. The proposed time-lapse seismic methods developed in petroleum geophysics offer the next

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

    E-Print Network [OSTI]

    Lumley, D.

    2010-01-01

    on “CO 2 Sequestration Geophysics” David Lumley (U. W.on “CO 2 Sequestration Geophysics” was held August 23-27,sequestration: Model Studies: Geophysics, 73, WA105-WA112.

  5. Geophysical Prospecting 31,265-292, 1983. REFLECTION OF ELASTIC WAVES FROM

    E-Print Network [OSTI]

    Santos, Juan

    Geophysical Prospecting 31,265-292, 1983. REFLECTION OF ELASTIC WAVES FROM PERIODICALLY STRATIFIED from Periodically Stratified Media with Interfacial Slip, Geophysical Prospecting 31 phase propagation in some other direction. INTRODUCTION Geophysical media often exhibit anisotropic

  6. Treatise on Geophysics, 2nd Edition 00 (2014) 141 To appear in Treatise on Geophysics, 2nd Edition, Eds. T. Spohn & G. Schubert

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2014-01-01

    Treatise on Geophysics, 2nd Edition 00 (2014) 1­41 To appear in Treatise on Geophysics, 2nd Edition Author manuscript, published in "Treatise on Geophysics, 2nd edition, G. Schubert, T. Spohn (Ed.) (2014) in press" #12;T. Guillot & D. Gautier / Treatise on Geophysics, 2nd Edition 00 (2014) 1­41 2 Contents 1

  7. A Conceptual Model Approach to the Geophysical Exploration of...

    Open Energy Info (EERE)

    and the acquisition environment too challenging for seismic reflection to be routinely cost-effective. The geophysical parameter most commonly correlated with the overall...

  8. 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.

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

    Open Energy Info (EERE)

    5490655 Citation Applegate, J. K.; Moens, T. A. . 411980. Geophysical logging case history of the Raft River geothermal system, Idaho. () : DOE Information Bridge. Related...

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

    Open Energy Info (EERE)

    Role of borehole geophysics in defining the physical characteristics of the Raft River geothermal reservoir, Idaho Jump to: navigation, search OpenEI Reference LibraryAdd to...

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

    E-Print Network [OSTI]

    Zhang, Haijiang

    2012-01-01

    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 ...

  12. Geophysical Setting of the Blue Mountain Geothermal Area, North...

    Open Energy Info (EERE)

    Geophysical Setting of the Blue Mountain Geothermal Area, North-Central Nevada and Its Relationship to a Crustal-Scale Fracture Associated with the Inception of the Yellowstone...

  13. Exoplanetary Geophysics -- An Emerging Discipline

    E-Print Network [OSTI]

    Laughlin, Gregory

    2015-01-01

    Thousands of extrasolar planets have been discovered, and it is clear that the galactic planetary census draws on a diversity greatly exceeding that exhibited by the solar system's planets. We review significant landmarks in the chronology of extrasolar planet detection, and we give an overview of the varied observational techniques that are brought to bear. We then discuss the properties of the currently known distribution, using the mass-period diagram as a guide to delineating hot Jupiters, eccentric giant planets, and a third, highly populous, category that we term "ungiants", planets having masses less than 30 Earth masses and orbital periods less than 100 days. We then move to a discussion of the bulk compositions of the extrasolar planets. We discuss the long-standing problem of radius anomalies among giant planets, as well as issues posed by the unexpectedly large range in sizes observed for planets with masses somewhat greater than Earth's. We discuss the use of transit observations to probe the atmo...

  14. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2000 1 Sensing Volcanism, Remote Sensing of Active Volcanism, AGU Geophysical Monograph Series 116, Mouginis

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

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

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

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

    E-Print Network [OSTI]

    Brownstone, Rob

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

  17. Singing the Brain Electric

    E-Print Network [OSTI]

    Chua, Grace (Grace W. J.)

    2008-01-01

    Singing the Brain Electric Brain pacemakers, scientists have found, can treat depression by correcting neural circuitry gone haywire. This thesis examines how such technology - a technique known as deep-brain stimulation, ...

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

    SciTech Connect (OSTI)

    Lance Prothro, Sigmund Drellack, Margaret Townsend

    2009-03-25

    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.

  19. Techniques for analyzing the impacts of certain electric-utility ratemaking and regulatory-policy concepts. Regulatory laws and policies. [State by state

    SciTech Connect (OSTI)

    1980-08-01

    This report is a legal study prepared to provide a review of the substantive and procedural laws of each regulatory jurisdiction that may affect implementation of the PURPA standards, and to summarize the current state of consideration and implementation of policies and rate designs similar or identical to the PURPA standards by state regulatory agencies and nonregulated utilities. This report is divided into three sections. The first section, the Introduction, summarizes the standards promulgated by PURPA and the results of the legal study. The second section, State Regulatory Law and Procedure, summarizes for each state or other ratemaking jurisdiction: (1) general constitutional and statutory provisions affecting utility rates and conditions of service; (2) specific laws or decisions affecting policy or rate design issues covered by PURPA standards; and (3) statutes and decisions governing administrative procedures, including judicial review. A chart showing actions taken on the policy and rate design issues addressed by PURPA is also included for each jurisdiction, and citations to relevant authorities are presented for each standard. State statutes or decisions that specifically define a state standard similar or identical to a PURPA standard, or that refer to one of the three PURPA objectives, are noted. The third section, Nonregulated Electric Utilities, summarizes information available on nonregulated utilities, i.e., publicly or cooperatively owned utilities which are specifically exempted from state regulation by state law.

  20. GEOPHYSICAL JOURNAL INTERNATIONAL, 133, 379389, 1998 1 A continuous plate-tectonic model using geophysical data

    E-Print Network [OSTI]

    GEOPHYSICAL JOURNAL INTERNATIONAL, 133, 379­389, 1998 1 A continuous plate-tectonic model using and Technology, University of Hawaii, Honolulu, 96822, USA Summary A continuous kinematic model of present day of the standard plate model; the differences, however, are systematic and indicate the greater proportion of spin

  1. Environmental geophysics at Beach Point, Aberdeen Proving Ground, Maryland

    SciTech Connect (OSTI)

    McGinnis, L.D.; Daudt, C.R.; Thompson, M.D.; Miller, S.F.; Mandell, W.A.; Wrobel, J.

    1994-07-01

    Geophysical studies at Beach Point Peninsula, in the Edgewood area of Aberdeen Proving Ground, Maryland, provide diagnostic signatures of the hydrogeologic framework and possible contaminant pathways. These studies permit construction of the most reasonable scenario linking dense, nonaqueous-phase liquid contaminants introduced at the surface with their pathway through the surficial aquifer. Subsurface geology and contaminant presence were identified by drilling, outcrop mapping, and groundwater sampling and analyses. Suspected sources of near-surface contaminants were defined by magnetic and conductivity measurements. Negative conductivity anomalies may be associated with unlined trenches. Positive magnetic and conductivity anomalies outline suspected tanks and pipes. The anomalies of greatest concern are those spatially associated with a concrete slab that formerly supported a mobile clothing impregnating plant. Resistivity and conductivity profiling and depth soundings were used to identify an electrical anomaly extending through the surficial aquifer to the basal pleistocene unconformity, which was mapped by using seismic reflection methods. The anomaly may be representative of a contaminant plume connected to surficial sources. Major activities in the area included liquid rocket fuel tests, rocket fuel fire suppression tests, pyrotechnic material and smoke generator tests, and the use of solvents at a mobile clothing impregnating plant.

  2. FOURIER TRANSFORM METHODS IN GEOPHYSICS David Sandwell, January, 2013

    E-Print Network [OSTI]

    Sandwell, David T.

    1 FOURIER TRANSFORM METHODS IN GEOPHYSICS David Sandwell, January, 2013 1. Fourier Transforms Fourier transform are use in many areas of geophysics such as image processing, time series analysis, and antenna design. Here we focus on the use of fourier transforms for solving linear partial differential

  3. PETER LEE OLSON Present Position: Professor of Geophysical Fluid Dynamics

    E-Print Network [OSTI]

    Olson, Peter L.

    Power Plant Siting Program Scientific Steering Panel, NASA GRM mission University Corporation of California, Berkeley, California M.A. Geophysics, June 1974, University of California, Berkeley, California B of California, Berkeley (1980) Assistant Professor of Geophysical Fluid Dynamics, Johns Hopkins University

  4. PETER LEE OLSON Present Position: Professor of Geophysical Fluid Dynamics

    E-Print Network [OSTI]

    Olson, Peter L.

    Union, Tectonophysics Section Scientific Advisory Board, Maryland Power Plant Siting Program Scientific Dynamics EDUCATION: Ph.D. Geophysics, June 1977, University of California, Berkeley, California M.A. Geophysics, June 1974, University of California, Berkeley, California B.A. Geology, June 1972, University

  5. PETER LEE OLSON Present Position: Professor of Geophysical Fluid Dynamics

    E-Print Network [OSTI]

    Olson, Peter L.

    Union, Tectonophysics Section Scientific Advisory Board, Maryland Power Plant Siting Program Scientific of California, Berkeley, California M.A. Geophysics, June 1974, University of California, Berkeley, California B of California, Berkeley (1980) Assistant Professor of Geophysical Fluid Dynamics, Johns Hopkins University

  6. DEVELOPING GIS VISUALIZATION WEB SERVICES FOR GEOPHYSICAL APPLICATIONS

    E-Print Network [OSTI]

    DEVELOPING GIS VISUALIZATION WEB SERVICES FOR GEOPHYSICAL APPLICATIONS A. Sayar a,b. *, M. Pierce Commission II, WG II/2 KEY WORDS: GIS, Geophysics, Visualization, Internet/Web, Interoperability, Networks Information System (GIS) community. In this paper we will describe our group's efforts to implement GIS

  7. Geology and Geophysics College of Science code-BS

    E-Print Network [OSTI]

    Kihara, Daisuke

    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 2015 Department of Earth, Atmospheric, and Planetary

  8. Geology and Geophysics College of Science code-BS

    E-Print Network [OSTI]

    Kihara, Daisuke

    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

  9. Geology and Geophysics College of Science code-BS

    E-Print Network [OSTI]

    Kihara, Daisuke

    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

  10. Missouri University of Science and Technology 1 Geology and Geophysics

    E-Print Network [OSTI]

    Missouri-Rolla, University of

    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

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

    SciTech Connect (OSTI)

    Huang, Lianjie; Lumley, David; Sherlock, Don; Daley, Tom; Lawton, Don; Masters, Ron; Verliac, Michel; White, Don

    2009-01-01

    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.

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

    SciTech Connect (OSTI)

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

    2010-01-15

    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.

  13. Streaming potential measurements 2. Relationship between electrical and hydraulic flow

    E-Print Network [OSTI]

    Avouac, Jean-Philippe

    that variations of electric potential observed in a variety of geophysical contexts (geothermal fields, volcanoes gradient, is measured by recording the voltage across a sample through which an electrolyte is flowing to the pressure gradient and a quantity called the potential, which characterizes the structure of the EDL

  14. A REVIEW OF AIR QUALITY MODELING TECHNIQUES. VOLUME 8 OF THE FINAL REPORT ON HEALTH AND SAFETY IMPACTS OF NUCLEAR, GEOTHERMAL, AND FOSSIL-FUEL ELECTRIC GENERATION IN CALIFORNIA

    E-Print Network [OSTI]

    Rosen, L.C.

    2010-01-01

    AND FOSSIL-FUEL ELECTRIC GENERATION IN CALIFORNIA Energy andELECTRIC GENERATION IN CALIFORNIA A project performed for the California Energy

  15. New perspectives on superparameterization for geophysical turbulence

    SciTech Connect (OSTI)

    Majda, Andrew J.; Grooms, Ian

    2014-08-15

    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.

  16. Geophysical Monitoring Methods Evaluation for the FutureGen 2.0 Project

    SciTech Connect (OSTI)

    Strickland, Chris E.; USA, Richland Washington; Vermeul, Vince R.; USA, Richland Washington; Bonneville, Alain; USA, Richland Washington; Sullivan, E. Charlotte; USA, Richland Washington; Johnson, Tim C.; USA, Richland Washington; Spane, Frank A.; USA, Richland Washington; Gilmore, Tyler J.; USA, Richland Washington

    2014-12-31

    A comprehensive monitoring program will be needed in order to assess the effectiveness of carbon sequestration at the FutureGen 2.0 carbon capture and storage (CCS) field-site. Geophysical monitoring methods are sensitive to subsurface changes that result from injection of CO2 and will be used for: (1) tracking the spatial extent of the free phase CO2 plume, (2) monitoring advancement of the pressure front, (3) identifying or mapping areas where induced seismicity occurs, and (4) identifying and mapping regions of increased risk for brine or CO2 leakage from the reservoir. Site-specific suitability and cost effectiveness were evaluated for a number of geophysical monitoring methods including: passive seismic monitoring, reflection seismic imaging, integrated surface deformation, time-lapse gravity, pulsed neutron capture logging, cross-borehole seismic, electrical resistivity tomography, magnetotellurics and controlled source electromagnetics. The results of this evaluation indicate that CO2 injection monitoring using reflection seismic methods would likely be difficult at the FutureGen 2.0 site. Electrical methods also exhibited low sensitivity to the expected CO2 saturation changes and would be affected by metallic infrastructure at the field site. Passive seismic, integrated surface deformation, time-lapse gravity, and pulsed neutron capture monitoring were selected for implementation as part of the FutureGen 2.0 storage site monitoring program.

  17. Geophysical Monitoring Methods Evaluation for the FutureGen 2.0 Project

    SciTech Connect (OSTI)

    Strickland, Chris E. [Pacific Northwest National Laboratory; Richland Washington USA; Vermeul, Vince R. [Pacific Northwest National Laboratory; Richland Washington USA; Bonneville, Alain [Pacific Northwest National Laboratory; Richland Washington USA; Sullivan, E. Charlotte [Pacific Northwest National Laboratory; Richland Washington USA; Johnson, Tim C. [Pacific Northwest National Laboratory; Richland Washington USA; Spane, Frank A. [Pacific Northwest National Laboratory; Richland Washington USA; Gilmore, Tyler J. [Pacific Northwest National Laboratory; Richland Washington USA

    2014-12-31

    A comprehensive monitoring program will be needed in order to assess the effectiveness of carbon sequestration at the FutureGen 2.0 carbon capture and storage (CCS) field-site. Geophysical monitoring methods are sensitive to subsurface changes that result from injection of CO2 and will be used for: (1) tracking the spatial extent of the free phase CO2 plume, (2) monitoring advancement of the pressure front, (3) identifying or mapping areas where induced seismicity occurs, and (4) identifying and mapping regions of increased risk for brine or CO2 leakage from the reservoir. Site-specific suitability and cost effectiveness were evaluated for a number of geophysical monitoring methods including: passive seismic monitoring, reflection seismic imaging, integrated surface deformation, time-lapse gravity, pulsed neutron capture logging, cross-borehole seismic, electrical resistivity tomography, magnetotellurics and controlled source electromagnetics. The results of this evaluation indicate that CO2 injection monitoring using reflection seismic methods would likely be difficult at the FutureGen 2.0 site. Electrical methods also exhibited low sensitivity to the expected CO2 saturation changes and would be affected by metallic infrastructure at the field site. Passive seismic, integrated surface deformation, time-lapse gravity, and pulsed neutron capture monitoring were selected for implementation as part of the FutureGen 2.0 storage site monitoring program.

  18. Geophysical Monitoring Methods Evaluation for the FutureGen 2.0 Project

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Strickland, Chris E.; USA, Richland Washington; Vermeul, Vince R.; USA, Richland Washington; Bonneville, Alain; USA, Richland Washington; Sullivan, E. Charlotte; USA, Richland Washington; Johnson, Tim C.; USA, Richland Washington; et al

    2014-12-31

    A comprehensive monitoring program will be needed in order to assess the effectiveness of carbon sequestration at the FutureGen 2.0 carbon capture and storage (CCS) field-site. Geophysical monitoring methods are sensitive to subsurface changes that result from injection of CO2 and will be used for: (1) tracking the spatial extent of the free phase CO2 plume, (2) monitoring advancement of the pressure front, (3) identifying or mapping areas where induced seismicity occurs, and (4) identifying and mapping regions of increased risk for brine or CO2 leakage from the reservoir. Site-specific suitability and cost effectiveness were evaluated for a number ofmore »geophysical monitoring methods including: passive seismic monitoring, reflection seismic imaging, integrated surface deformation, time-lapse gravity, pulsed neutron capture logging, cross-borehole seismic, electrical resistivity tomography, magnetotellurics and controlled source electromagnetics. The results of this evaluation indicate that CO2 injection monitoring using reflection seismic methods would likely be difficult at the FutureGen 2.0 site. Electrical methods also exhibited low sensitivity to the expected CO2 saturation changes and would be affected by metallic infrastructure at the field site. Passive seismic, integrated surface deformation, time-lapse gravity, and pulsed neutron capture monitoring were selected for implementation as part of the FutureGen 2.0 storage site monitoring program.« less

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

    E-Print Network [OSTI]

    Nissen-Meyer, Tarje

    CURRICULUM VITAE TARJE NISSEN-MEYER address: ETH Zurich, Institute of Geophysics Sonneggstrasse 5: ++41 (0) 44 633 3154 fax: ++41 (0) 44 633 1065 AUGUST 5, 2010 Education 2007 Ph.D. Geophysics in field geology, mathematics, seismology, geodynamics, geophysics 2001 Diplom Geophysics (M

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

    SciTech Connect (OSTI)

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

    2009-02-10

    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.

  1. Geophysical subsurface imaging and interface identification.

    SciTech Connect (OSTI)

    Pendley, Kevin; Bochev, Pavel Blagoveston; Day, David Minot; Robinson, Allen Conrad; Weiss, Chester Joseph

    2005-09-01

    Electromagnetic induction is a classic geophysical exploration method designed for subsurface characterization--in particular, sensing the presence of geologic heterogeneities and fluids such as groundwater and hydrocarbons. Several approaches to the computational problems associated with predicting and interpreting electromagnetic phenomena in and around the earth are addressed herein. Publications resulting from the project include [31]. To obtain accurate and physically meaningful numerical simulations of natural phenomena, computational algorithms should operate in discrete settings that reflect the structure of governing mathematical models. In section 2, the extension of algebraic multigrid methods for the time domain eddy current equations to the frequency domain problem is discussed. Software was developed and is available in Trilinos ML package. In section 3 we consider finite element approximations of De Rham's complex. We describe how to develop a family of finite element spaces that forms an exact sequence on hexahedral grids. The ensuing family of non-affine finite elements is called a van Welij complex, after the work [37] of van Welij who first proposed a general method for developing tangentially and normally continuous vector fields on hexahedral elements. The use of this complex is illustrated for the eddy current equations and a conservation law problem. Software was developed and is available in the Ptenos finite element package. The more popular methods of geophysical inversion seek solutions to an unconstrained optimization problem by imposing stabilizing constraints in the form of smoothing operators on some enormous set of model parameters (i.e. ''over-parametrize and regularize''). In contrast we investigate an alternative approach whereby sharp jumps in material properties are preserved in the solution by choosing as model parameters a modest set of variables which describe an interface between adjacent regions in physical space. While still over-parametrized, this choice of model space contains far fewer parameters than before, thus easing the computational burden, in some cases, of the optimization problem. And most importantly, the associated finite element discretization is aligned with the abrupt changes in material properties associated with lithologic boundaries as well as the interface between buried cultural artifacts and the surrounding Earth. In section 4, algorithms and tools are described that associate a smooth interface surface to a given triangulation. In particular, the tools support surface refinement and coarsening. Section 5 describes some preliminary results on the application of interface identification methods to some model problems in geophysical inversion. Due to time constraints, the results described here use the GNU Triangulated Surface Library for the manipulation of surface meshes and the TetGen software library for the generation of tetrahedral meshes.

  2. Program Description

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

    teaches modern geophysical exploration techniques: seismic reflection and refraction, gravity and magnetics, electromagnetics (including magnetotellurics), and electrical...

  3. About SAGE

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

    Teaches modern geophysical exploration techniques: seismic reflection and refraction, gravity and magnetics, electromagnetics (including magnetotellurics), and electrical...

  4. 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 for the modeling of geomechanical effects induced by reservoir production/injection and the cyclic dependence

  5. A Geological And Geophysical Appraisal Of The Baca Geothermal...

    Open Energy Info (EERE)

    A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

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

    Open Energy Info (EERE)

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

  7. GEOPHYSICAL RESEARCH LETTERS Supporting Information for "Eddy-mediated

    E-Print Network [OSTI]

    Stewart, Andrew

    GEOPHYSICAL RESEARCH LETTERS Supporting Information for "Eddy-mediated transport of warm, and over- turning circulation. 1 Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, Los Angeles, California, USA. 2 Environmental Sciences and Engineering, California

  8. GeophysicalResearchLetters RESEARCH LETTER

    E-Print Network [OSTI]

    Cummer, Steven A.

    Department of Physics, University of New Hampshire, Durham, New Hampshire, USA, 4Earth Systems Science Center electrons · The electric current in the TGF generation process can be very strong Correspondence to: S. A, G. J. Fishman, G. Lu, F. Lyu, and R. Solanki (2014), The source altitude, electric current

  9. Electricity Reliability

    E-Print Network [OSTI]

    Post, Wilfred M.

    Electricity Delivery and Energy Reliability High Temperature Superconductivity (HTS) Visualization in the future because they have virtually no resistance to electric current, offering the possibility of new electric power equipment with more energy efficiency and higher capacity than today's systems

  10. Mike Batzle holds the Baker Hughes Distinguished Chair of Petrophysics and Borehole Geophysics, at the Colorado School of Mines, where he has been a member of the geophysics

    E-Print Network [OSTI]

    Mike Batzle holds the Baker Hughes Distinguished Chair of Petrophysics and Borehole Geophysics, at the Colorado School of Mines, where he has been a member of the geophysics department for the past 17 years from the University of California, Riverside, and a PhD in geophysics from MIT. His main interests have

  11. REVIEWSOF GEOPHYSICS,VOL. 25, NO. 2, PAGES153-161, MARCH1987 U.S. NATIONAL REPORT TO INTERNATIONAL UNION OF GEODESY AND GEOPHYSICS 1983-1986

    E-Print Network [OSTI]

    Dozier, Jeff

    REVIEWSOF GEOPHYSICS,VOL. 25, NO. 2, PAGES153-161, MARCH1987 U.S. NATIONAL REPORT TO INTERNATIONAL UNION OF GEODESY AND GEOPHYSICS 1983-1986 RecentResearchin SnowHydrology JEFF DOZIER Centerfor Remote thespectraldistri- butionof the incomingsolardirectanddiffuseirradianceand thespectralalbedo: Copyfight1987bytheAmericanGeophysical

  12. Richmond Electric Vehicle Initiative Electric Vehicle Readiness...

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

    Richmond Electric Vehicle Initiative Electric Vehicle Readiness Plan Richmond Electric Vehicle Initiative Electric Vehicle Readiness Plan The REVi plan addresses the electric...

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, The influence of non, 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

  14. Geophysics: Building E5190 decommissioning, Aberdeen Proving Ground. Interim progress report

    SciTech Connect (OSTI)

    Miller, S.F.; Thompson, M.D.; McGinnis, M.G.; McGinnis, L.D.

    1992-07-01

    Building E5190 is one of ten potentially contaminated sites in the Canal Creek area of the Edgewood section of Aberdeen Proving Ground examined by a geophysical team from Argonne National Laboratory in April and May 1992. A noninvasive geophysical survey, including the complementary technologies of magnetics, electrical resistivity, and ground-penetrating radar, was conducted around the perimeter as a guide to developing a sampling and monitoring program prior to decommissioning and dismantling the building. The magnetics surveys indicated that multistation, positive magnetic sources are randomly distributed north and west of the building. Two linear trends were noted: one that may outline buried utility lines and another that is produced by a steel-covered trench. The resistivity profiling indicated three conductive zones: one due to increased moisture in a ditch, one associated with buried utility lines, and a third zone associated with the steel-covered trench. Ground-penetrating radar imaging detected two significant anomalies, which were correlated with small-amplitude magnetic anomalies. The objectives of the study -- to detect and locate objects and to characterize a located object were achieved.

  15. Electrical + Engineering

    E-Print Network [OSTI]

    Cafarella, Michael J.

    Electrical + Computer Engineering Electrical + Computer Engineering 2013 PROFILE PEOPLE Faculty Students Electrical Engineering - 330 Computer Engineering - 224 Graduate Students EE and EE:Systems MSE - 301 EE and EE:Systems PhD - 296 Degrees Awarded Electrical Engineering BSE - 123 Computer Engineering

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

    SciTech Connect (OSTI)

    Gasperikova, Erika; Hoversten, G. Michael

    2006-07-01

    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.

  17. The effect of E{sub r} on MSE measurements of q, a new technique for measuring E{sub r}, and a test of the neoclassical electric field

    SciTech Connect (OSTI)

    Zarnstorff, M.C.; Synakowski, E.J.; Levinton, F.M.; Batha, S.H.

    1996-10-01

    Previous analysis of motional-Stark Effect (MSE) data to measure the q-profile ignored contributions from the plasma electric field. The MSE measurements are shown to be sensitive to the electric field and require significant corrections for plasmas with large rotation velocities or pressure gradients. MSE measurements from rotating plasmas on the Tokamak Fusion Test Reactor (TFTR) confirm the significance of these corrections and verify their magnitude. Several attractive configurations are considered for future MSE-based diagnostics for measuring the plasma radial electric field. MSE data from TFTR is analyzed to determine the change in the radial electric field between two plasmas. The measured electric field quantitatively agrees with the predictions of neoclassical theory. These results confirm the utility of a MSE electric field measurement.

  18. Geophysical Research Abstracts Vol. 12, EGU2010-4777-1, 2010

    E-Print Network [OSTI]

    Boyer, Edmond

    Geophysical Research Abstracts Vol. 12, EGU2010-4777-1, 2010 EGU General Assembly 2010 © Author" River and the damage caused can create routes for floods. Geophysical methods such as Multi

  19. Geophysical Investigations of the Mound City Borrow Pits, Ross County, Ohio

    E-Print Network [OSTI]

    Benson, Blair

    2012-05-31

    Geophysical subsurface imaging is becoming a common practice in archaeology. Non-invasive geophysical methods provide efficient alternatives to costly and invasive excavations, allowing archaeologists to analyze sites before any excavation is done...

  20. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2003 1 volcanic collapse formation, Geochemistry, Geophysics, Geosystems, 4 (9), 1077, doi:10.1029/2002GC000483

  1. Smithsonian/NASA ADS Physics/Geophysics Abstract Service Find Similar Abstracts (with default settings below)

    E-Print Network [OSTI]

    Mojahedi, Mohammad

    Smithsonian/NASA ADS Physics/Geophysics Abstract Service · Find Similar Abstracts (with default | Query Form | Preferences | HELP | FAQ Physics/Geophysics arXiv e-prints Send Query Reset #12;

  2. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2005 1. 2 craters. Journal of Geophysical Research 110, E10001, doi: 10.1029/2004JE002338, 2005. 7. Blewett, D. T

  3. ERNEST LUTHER MAJER Ph.D., June 1978 Geophysics, University of California, Berkeley

    E-Print Network [OSTI]

    Ajo-Franklin, Jonathan

    , and for tracking fluid injection fronts. Staff Scientist, Group Leader Geophysics/Geomechanics Group Earth Sciences/Subsurface Geosciences, Geophysics/ Geomechanics Earth Sciences Division, 1994 - 2002 Lawrence Berkeley Laboratory Recent

  4. Model documentation: Electricity Market Module, Electricity Fuel Dispatch Submodule

    SciTech Connect (OSTI)

    Not Available

    1994-04-08

    This report documents the objectives, analytical approach and development of the National Energy Modeling System Electricity Fuel Dispatch Submodule (EFD), a submodule of the Electricity Market Module (EMM). The report catalogues and describes the model assumptions, computational methodology, parameter estimation techniques, model source code, and forecast results generated through the synthesis and scenario development based on these components.

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

    SciTech Connect (OSTI)

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

    2011-07-15

    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.

  6. Transcranial electrical stimulation: An introduction

    E-Print Network [OSTI]

    Tarazona, Carlos G; Chávez, Laura; Andrade, Sebastián

    2015-01-01

    The main objective of the electrical stimulation of the brain is to generate action potentials from the application of electromagnetic fields. Among the available techniques, transcranial electrical stimulation (TES) represents a popular method of administration that has the advantage of being non-invasive and economically more affordable. This article aims to briefly introduce the reader into the understanding of TES in terms of the physics involved as well as for some of the relevant results of studies applying this technique.

  7. Well casing-based geophysical sensor apparatus, system and method

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2010-03-09

    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.

  8. GEOPHYSICAL INVERSION IN AN INTEGRATED EXPLORATION PROGRAM: EXAMPLES FROM THE SAN NICOL AS DEPOSIT

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    GEOPHYSICAL INVERSION IN AN INTEGRATED EXPLORATION PROGRAM: EXAMPLES FROM THE SAN NICOL ´AS DEPOSIT information to the explorationist. This thesis examines the role geophysical inversion can assume in an integrated explo- ration program, and the impact it can have on the results. As an example, geophysical data

  9. Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii

    E-Print Network [OSTI]

    Publications of the Hawaii Institute of Geophysics and Planetology University of Hawaii 2006 1 with an albedo feature near Airy crater in the lunar nearside highlands. Geophysical Research Letters. 9. Boyce viewed by the THEMIS instrument: Double-layered ejecta craters. J. Geophysical Research, 111, E10005, doi

  10. Geophysical Journal International Geophys. J. Int. (2013) doi: 10.1093/gji/ggt425

    E-Print Network [OSTI]

    Nore, Caroline

    2013-01-01

    Geophysical Journal International Geophys. J. Int. (2013) doi: 10.1093/gji/ggt425 GJIGeomagnetismInstitute of Geophysics, ETH Zurich, Zurich 8092, Switzerland. E-mail: ajackson@ethz.ch 2Institute of Geophysics, University of G¨ottingen, D-37077 G¨ottingen, Germany 3Solar Physics, Hansen Experimental Physics

  11. Geophysical and Astrophysical Fluid Dynamics, Vol. 101, Nos. 56, OctoberDecember 2007, 469487

    E-Print Network [OSTI]

    Lathrop, Daniel P.

    Geophysical and Astrophysical Fluid Dynamics, Vol. 101, Nos. 5­6, October­December 2007, 469, USA zInstitute of Geophysics, University of Go¨ ttingen, Friedrich-Hund-Platz 1, D-37077 Go¨ ttingen (though later work by Banka and *Corresponding author. Email: dpl@complex.umd.edu Geophysical

  12. Journal of Life Sciences 6 (2012) 335-341 The International Research Group in Geophysics Europe

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2012-01-01

    Journal of Life Sciences 6 (2012) 335-341 The International Research Group in Geophysics Europe to create the IRGGEA (International Group in Geophysics Europe Africa) in order to pursue the scientific: Scientific network, ethical rules, geophysics, sustainable research, Africa. 1. Introduction

  13. Multifractals and Wavelets: A potential tool in Geophysics Rudolf H. Riedi, Rice University, Houston, Texas

    E-Print Network [OSTI]

    Riedi, Rudolf H.

    Multifractals and Wavelets: A potential tool in Geophysics Rudolf H. Riedi, Rice University of pos- sible applications in geophysics. It is elaborated how a description of the well log measurement to the mentioned elds. This paper is written in the hope of achieving the same in the area of geophysics. The idea

  14. Northern Thailand Geophysics Field Camp: Overview of Activities Lee M. Liberty

    E-Print Network [OSTI]

    Barrash, Warren

    Northern Thailand Geophysics Field Camp: Overview of Activities Lee M. Liberty Boise State University conducted a geophysics field camp in northern Thailand in January, 2010 to train students and professionals in geophysical methods to address environmental and engineering challenges. Faculty, technicians

  15. GEOPHYSICS?[The application of physics to problems in the Earth Sciences.

    E-Print Network [OSTI]

    Merriam, James

    W HAT IS GEOPHYSICS?[The application of physics to problems in the Earth Sciences.] In applied geophysics we inject a signal into the ground and record how the ground changes that signal as it passes://duke.usask.ca~merriam/geo_phys/ Rewarding careers are possible in exploration and environmental geophysics. Graduates of the U of S qualify

  16. Geophysical Surveying with Marine Networked Mobile Robotic Systems: The WiMUST Project

    E-Print Network [OSTI]

    Jesus, Sérgio M.

    Geophysical Surveying with Marine Networked Mobile Robotic Systems: The WiMUST Project [Extended for geophysical surveying. This paper describes the main features of the envisaged developments, with a focus.00. Figure 1: Conventional geophysical surveying using long lines of towed streamers team. Such teams

  17. Bachelor of Science, Geosciences, Geophysics Emphasis, 2014-2015 Name ID# Date

    E-Print Network [OSTI]

    Barrash, Warren

    Bachelor of Science, Geosciences, Geophysics Emphasis, 2014-2015 Name ID# Date General Degree General Chemistry II with Lab 4 GEOPH 201 Seeing the Unseen: an Introduction to Geophysics 4 GEOG 360 Physics I & II with Calculus & Labs Physics Option II: PHYS 111-112 General Physics 8-10 Geophysics

  18. UNIVERSITY OF HAWAII AT MANOA GEOLOGY AND GEOPHYSICS GRADUATE PROGRAM SUPPLEMENTAL INFORMATION FORM

    E-Print Network [OSTI]

    UNIVERSITY OF HAWAII AT MANOA · GEOLOGY AND GEOPHYSICS GRADUATE PROGRAM SUPPLEMENTAL INFORMATION of Geology and Geophysics, University of Hawaii, 1680 East-West Road, POST 701, Honolulu, HI 96822 For Semester/YEAR FALL ________ SPRING ________ Intended Graduate Program GEOLOGY AND GEOPHYSICS Degree

  19. Three-Year Non-Tenure Track Visiting Assistant Professor Position Geophysics -The University of Alabama Department of Geological

    E-Print Network [OSTI]

    Zheng, Chunmiao

    Three-Year Non-Tenure Track Visiting Assistant Professor Position ­ Geophysics - The University of Alabama invites applications for a three-year, non-tenure track visiting faculty position in geophysics geophysical sub-disciplines, preference will be given to candidates who will enhance our existing geophysics

  20. Book Series Copyright 2004 by the American Geophysical Union

    E-Print Network [OSTI]

    Xie, Shang-Ping

    ocean currents/fronts. Finally, various atmospheric and oceanic bridges that link different ocean basinsBook Title Book Series Copyright 2004 by the American Geophysical Union 1 A Global Survey of Ocean, College Park, Maryland The interaction of the ocean and atmosphere plays an important role in shaping

  1. Marine Geophysical Research An International Journal for the Study of

    E-Print Network [OSTI]

    Clift, Peter

    1 23 Marine Geophysical Research An International Journal for the Study of the Earth Beneath just prior to full break-up. We identify a major continental block separated from the shelf margin by a basin of hyperextended crust. Oligocene-Early Miocene rifting was followed by mild compression

  2. Nonlinear Processes in Geophysics (2001) 8: 429438 Nonlinear Processes

    E-Print Network [OSTI]

    Boyer, Edmond

    2001-01-01

    Geophysical Society 2001 Mesoscale predictability under various synoptic regimes W. A. Nuss and D. K. Miller slightly ro- tated terrain are compared to gauge the sentivity of mesoscale forecasts to small forecast errors on the mesoscale in both wind and precipitation. The largest mesoscale errors occur when

  3. Surface OceanLower Atmosphere Processes Geophysical Research Series 187

    E-Print Network [OSTI]

    Kohfeld, Karen

    , British Columbia, Canada Andy Ridgwell Bristol Research Initiative for the Dynamic Global Environment251 Surface Ocean­Lower Atmosphere Processes Geophysical Research Series 187 Copyright 2009, and processes have been identified that have improved our understanding of the modern and future carbon cycle

  4. Recent advances in optimized geophysical survey design Hansruedi Maurer1

    E-Print Network [OSTI]

    method. In contrast, an underdetermined 2D seismic traveltime tomog- raphy design study indicates subsurface information as the full bandwidth.Anon- linear experimental design for a seismic amplitudeRecent advances in optimized geophysical survey design Hansruedi Maurer1 , Andrew Curtis2

  5. 2 Geophysical Aspects of Non-Newtonian Fluid Mechanics

    E-Print Network [OSTI]

    Balmforth, Neil

    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

  6. Geophysical implications of the longwavelength topography of Rhea

    E-Print Network [OSTI]

    Nimmo, Francis

    Geophysical implications of the longwavelength topography of Rhea F. Nimmo,1 B. G. Bills,2 P. C 16 October 2010. [1] We use limb profiles to investigate the longwavelength topography topography of Rhea. The degree 3 topography is large enough, if uncompensated, to contaminate estimates

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hengill geothermal volcanic complex (Iceland) characterized by integrated geophysical observations Cedex 02, France. 2 GeoForschungsZentrum Potsdam - Section 2.2, 14473 Potsdam, Germany. 3 Iceland GeoSurvey - ISOR , 108 Reykjavík, Iceland Abstract Structural features of volcanic and hydrothermal systems can

  8. 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

  9. Theory of isotope diffusion in a material with multiple species and its implications for hydrogen-enhanced electrical conductivity in olivine

    E-Print Network [OSTI]

    Theory of isotope diffusion in a material with multiple species and its implications for hydrogen-enhanced electrical conductivity in olivine Shun-ichiro Karato Yale University, Department of Geology and Geophysics in revised form 22 February 2013 Accepted 11 March 2013 Available online 28 March 2013 Keywords: Electrical

  10. Chapter 5. Transmission networks and electricity markets

    E-Print Network [OSTI]

    Ernst, Damien

    of the world: assumptions that electrical energy can be traded as if all generators were connected to the same for electrical energy. In this lesson: we study the effects that a transmission network has on trading of electrical energy and the special techniques that can be used to hedge against these limitations. 2 #12

  11. Teaching Techniques 

    E-Print Network [OSTI]

    Howard, Jeff W.

    2005-05-10

    with others such as a small group discussion or the question-answer technique to al- low the 4-H?ers to express their opinion. 2. Illustrated talk This method is an offshoot of the lecture technique, in which the teacher supports the talk with such things... as drawings, posters, copies of articles and other materials. The drawings or posters need not be professional art pieces, they need only be interesting and clear. For ex- ample, in entomology, rather than just talking about the various shapes...

  12. Electric Vehicles

    ScienceCinema (OSTI)

    Ozpineci, Burak

    2014-07-23

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  13. Electric Vehicles

    SciTech Connect (OSTI)

    Ozpineci, Burak

    2014-05-02

    Burak Ozpineci sees a future where electric vehicles charge while we drive them down the road, thanks in part to research under way at ORNL.

  14. High-frequency electric field measurement using a toroidal antenna

    DOE Patents [OSTI]

    Lee, Ki Ha (Lafayette, CA)

    2002-01-01

    A simple and compact method and apparatus for detecting high frequency electric fields, particularly in the frequency range of 1 MHz to 100 MHz, uses a compact toroidal antenna. For typical geophysical applications the sensor will be used to detect electric fields for a wide range of spectrum starting from about 1 MHz, in particular in the frequency range between 1 to 100 MHz, to detect small objects in the upper few meters of the ground. Time-varying magnetic fields associated with time-varying electric fields induce an emf (voltage) in a toroidal coil. The electric field at the center of (and perpendicular to the plane of) the toroid is shown to be linearly related to this induced voltage. By measuring the voltage across a toroidal coil one can easily and accurately determine the electric field.

  15. Recovery Act Validation of Innovative Exploration Techniques Pilgrim Hot Springs, Alaska

    SciTech Connect (OSTI)

    Holdmann, Gwen

    2015-04-30

    Drilling and temperature logging campaigns between the late 1970's and early 1980’s measured temperatures at Pilgrim Hot Springs in excess of 90°C. Between 2010 and 2014 the University of Alaska used a variety of methods including geophysical surveys, remote sensing techniques, heat budget modeling, and additional drilling to better understand the resource and estimate the available geothermal energy.

  16. Electric machine

    DOE Patents [OSTI]

    El-Refaie, Ayman Mohamed Fawzi (Niskayuna, NY); Reddy, Patel Bhageerath (Madison, WI)

    2012-07-17

    An interior permanent magnet electric machine is disclosed. The interior permanent magnet electric machine comprises a rotor comprising a plurality of radially placed magnets each having a proximal end and a distal end, wherein each magnet comprises a plurality of magnetic segments and at least one magnetic segment towards the distal end comprises a high resistivity magnetic material.

  17. Electrochemical Techniques

    SciTech Connect (OSTI)

    Chen, Gang; Lin, Yuehe

    2008-07-20

    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.

  18. Measurement techniques

    SciTech Connect (OSTI)

    Willis, W.L.

    1980-10-01

    The discussion will be restricted to measurements of voltage and current. Also, although the measurements themselves should be as quantitative as possible, the discussion is rather nonquantitative. Emphasis is on types of instruments, how they may be used, and the inherent advantages and limitations of a given technique. A great deal of information can be obtained from good, clean voltage and current data. Power and impedance are obviously inherent if the proper time relationships are preserved. Often an associated, difficult-to-determine, physical event can be evaluated from the V-I data, such as a time-varying load characteristic, or the time of light emission, etc. The lack of active high voltage devices, such as 50-kV operational amplifiers, restricts measurement devices to passive elements, primarily R and C. There are a few more exotic techniques that are still passive in nature. There are several well-developed techniques for voltage measurements. These include: spark gaps; electrostatic meters; capacitive dividers; mixed RC dividers; and the electro-optic effect. Current is measured by either direct measurement of charge flow or by measuring the resulting magnetic field.

  19. ANALYSIS OF ELECTRIC GRID SECURITY UNDER TERRORIST THREAT Javier Salmeron

    E-Print Network [OSTI]

    Baldick, Ross

    ANALYSIS OF ELECTRIC GRID SECURITY UNDER TERRORIST THREAT Javier Salmeron Kevin Wood Operations techniques for analyzing the security and resilience of electrical power grids against disruptions caused analytical techniques to help mitigate the disruptions to electric power grids caused by terrorist attacks

  20. Geophysics-based method of locating a stationary earth object

    DOE Patents [OSTI]

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

    2008-05-20

    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.

  1. Electrical connector

    DOE Patents [OSTI]

    Dilliner, Jennifer L.; Baker, Thomas M.; Akasam, Sivaprasad; Hoff, Brian D.

    2006-11-21

    An electrical connector includes a female component having one or more receptacles, a first test receptacle, and a second test receptacle. The electrical connector also includes a male component having one or more terminals configured to engage the one or more receptacles, a first test pin configured to engage the first test receptacle, and a second test pin configured to engage the second test receptacle. The first test receptacle is electrically connected to the second test receptacle, and at least one of the first test pin and the second test pin is shorter in length than the one or more terminals.

  2. Geophysical constraint on a relic background of the dilatons

    E-Print Network [OSTI]

    Sachie Shiomi

    2010-10-15

    According to a scenario in string cosmology, a relic background of light dilatons can be a significant component of the dark matter in the Universe. A new approach of searching for such a dilatonic background by observing Earth's surface gravity was proposed in my previous work. In this paper, the concept of the geophysical search is briefly reviewed, and the geophysical constraint on the dilaton background is presented as a function of the strength of the dilaton coupling, $q_b^2$. For simplicity, I focus on massless dilatons and assume a simple Earth model. With the current upper limit on $q_b^2$, we obtain the upper limit on the dimensionless energy density of the massless background, $\\Omega_{DW}h^2_{100} \\leq 6 \\times 10^{-7}$, which is about one-order of magnitude more stringent than the one from astrophysical observations, at the frequency of $\\sim$ 7 $\\times$ 10$^{-5}$ Hz. If the magnitude of $q_b^2$ is experimentally found to be smaller than the current upper limit by one order of magnitude, the geophysical upper limit on $\\Omega_{DW}h^2_{100}$ becomes less stringent and comparable to the one obtained from the astrophysical observations.

  3. The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National Laboratory (LANL) is one of the Los Alamos National Laboratory science institutes; it

    E-Print Network [OSTI]

    The Institute of Geophysics and Planetary Physics (IGPP) at Los Alamos National Laboratory of the University of California's Systemwide Institute of Geophysics and Planetary Physics. Its science mission. We address the problem within four specific disciplines: · Geophysics · Global

  4. Southeast Asia applied geophysics workshop: Geoscientists without borders Lee M. Liberty*, Spencer H. Wood, Emily A. Hinz, and Dylan Mikesell, Boise State University, Fongsaward

    E-Print Network [OSTI]

    Barrash, Warren

    Southeast Asia applied geophysics workshop: Geoscientists without borders Lee M. Liberty*, Spencer of the SEG Foundation Geoscientists Without Borders program, we conducted a geophysics workshop in northern Thailand to train students and professionals in geophysical methods to address environmental

  5. electrical, engineering

    E-Print Network [OSTI]

    school of electrical, computer and energy engineering Annual Report 2012-2013 Breaking the final systems engineering Marco Santello, School Director enrollment 930 undergraduate 771 graduate 159 DEGREE PROGRAM biomedical engineering (Harrington Bioengineering program) school of computing, informatics

  6. Electrical, Engineering

    E-Print Network [OSTI]

    School of Electrical, Computer and Energy Engineering 2009-2010 Annual Report #12;Organizational Structure for Ira A. Fulton Schools of Engineering Schools (Director) Lead These Engineering Undergraduate Degree Programs Coordinate Across Engineering for These Grand Challenge Areas... Biological & Health

  7. Engineering Electrical &

    E-Print Network [OSTI]

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2011 Eight Required Courses Chart: 120 points College

  8. Engineering Electrical &

    E-Print Network [OSTI]

    Hickman, Mark

    Computer Engineering Electrical & Electronic Engineering Mechatronics Engineering Mechanical Engineering Civil Engineering Natural Resources Engineering Forest Engineering Chemical & Process Engineering ELECTIVE 2 Required Engineering Intermediate Year 2012 Eight Required Courses Chart: 120 points College

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

    Open Energy Info (EERE)

    considered. The combination of these data with earlier studies on the geology and geophysics of Milos allow the compilation of a possible model of the geothermal reservoir and...

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

    SciTech Connect (OSTI)

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

    1994-06-15

    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.

  11. Electric generator

    DOE Patents [OSTI]

    Foster, Jr., John S. (Pleasanton, CA); Wilson, James R. (Livermore, CA); McDonald, Jr., Charles A. (Danville, CA)

    1983-01-01

    1. In an electrical energy generator, the combination comprising a first elongated annular electrical current conductor having at least one bare surface extending longitudinally and facing radially inwards therein, a second elongated annular electrical current conductor disposed coaxially within said first conductor and having an outer bare surface area extending longitudinally and facing said bare surface of said first conductor, the contiguous coaxial areas of said first and second conductors defining an inductive element, means for applying an electrical current to at least one of said conductors for generating a magnetic field encompassing said inductive element, and explosive charge means disposed concentrically with respect to said conductors including at least the area of said inductive element, said explosive charge means including means disposed to initiate an explosive wave front in said explosive advancing longitudinally along said inductive element, said wave front being effective to progressively deform at least one of said conductors to bring said bare surfaces thereof into electrically conductive contact to progressively reduce the inductance of the inductive element defined by said conductors and transferring explosive energy to said magnetic field effective to generate an electrical potential between undeformed portions of said conductors ahead of said explosive wave front.

  12. Geophysical Disaster Computational Fluid Dynamics Center Our scientific advances.

    E-Print Network [OSTI]

    meteorology) · Increase efficiency of clean electric generation, transmission and use. (wind & hydro power

  13. Coupled modeling of hydrogeochemical and electrical resistivity data for exploring the impact of recharge on subsurface contamination

    SciTech Connect (OSTI)

    Kowalsky, Mike [Lawrence Berkeley National Laboratory (LBNL); Gasperikova, E. [Lawrence Berkeley National Laboratory (LBNL); Finsterle, S. [Lawrence Berkeley National Laboratory (LBNL); Watson, David B [ORNL; Baker, Gregory S. [University of Tennessee, Knoxville (UTK); Hubbard, Susan S [Lawrence Berkeley National Laboratory (LBNL)

    2011-01-01

    The application of geophysical methods, in particular, electrical resistivity measurements, may be useful for monitoring subsurface contamination. However, interpreting geophysical data without additional data and without considering the associated hydrogeochemical processes is challenging since the geophysical response is sensitive to not only heterogeneity in rock properties but also to the saturation and chemical composition of pore fluids. We present an inverse modeling framework that incorporates the simulation of hydrogeochemical processes and time-lapse electrical resistivity data and apply it to various borehole and cross-borehole data sets collected in 2008 near the S-3 Ponds at the U.S. Department of Energy's Oak Ridge Integrated Field Research Challenge site, where efforts are underway to better understand freshwater recharge and associated contaminant dilution. Our goal is to show that the coupled hydrogeochemical-geophysical modeling framework can be used to (1) develop a model that honors all the available data sets, (2) help understand the response of the geophysical data to subsurface properties and processes at the site, and (3) allow for the estimation of petrophysical parameters needed for interpreting the geophysical data. We present a series of cases involving different data sets and increasingly complex models and find that the approach provides useful information about soil properties, recharge-related transport processes, and the geophysical response. Spatial heterogeneity of the petrophysical model can be described sufficiently with two layers, and its parameters can be estimated concurrently with the hydrogeochemical parameters. For successful application of the approach, the parameters of interest must be sensitive to the available data, and the experimental conditions must be carefully modeled.

  14. Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media

    E-Print Network [OSTI]

    Vuik, Kees

    Master Thesis Proposal Eddy Current Imaging of Electrically Conducting Media Domenico Lahaye and optimization techniques en- abling the eddy current imaging of electrically conducting media. Examples: · perform a literature study into topics such as eddy current imaging, inverse problems including

  15. Dependable Computing Techniques for Reconfigurable Hardware

    E-Print Network [OSTI]

    Stanford University

    Hardware Wei-Je Robert Huang TR 01-7 June 2001 Center for Reliable Computing Gates Building 2A, Room 236 "Dependable Computing Techniques for Reconfigurable Hardware." Funding: This research was supported TECHNIQUES FOR RECONFIGURABLE HARDWARE A DISSERTATION SUBMITTED TO THE DEPARTMENT OF ELECTRICAL ENGINEERING

  16. Electrically powered hand tool

    DOE Patents [OSTI]

    Myers, Kurt S.; Reed, Teddy R.

    2007-01-16

    An electrically powered hand tool is described and which includes a three phase electrical motor having a plurality of poles; an electrical motor drive electrically coupled with the three phase electrical motor; and a source of electrical power which is converted to greater than about 208 volts three-phase and which is electrically coupled with the electrical motor drive.

  17. Geophysical Journal International Geophys. J. Int. (2013) 193, 603614 doi: 10.1093/gji/ggs120

    E-Print Network [OSTI]

    Demouchy, Sylvie

    2013-01-01

    Geophysical Journal International Geophys. J. Int. (2013) 193, 603­614 doi: 10.1093/gji/ggs120 of the Earth's magnetic field, performed by satel- lite and geophysical observatories, through historical

  18. Geophysical Research Abstracts, Vol. 8, 06396, 2006 SRef-ID: 1607-7962/gra/EGU06-A-06396

    E-Print Network [OSTI]

    Jamieson, Bruce

    Geophysical Research Abstracts, Vol. 8, 06396, 2006 SRef-ID: 1607-7962/gra/EGU06-A-06396 © European) Dept. of Geology and Geophysics, University of Calgary, Alberta, Canada This study investigates

  19. Geophysical Research Abstracts, Vol. 6, 01855, 2004 SRef-ID: 1607-7962/gra/EGU04-A-01855

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Geophysical Research Abstracts, Vol. 6, 01855, 2004 SRef-ID: 1607-7962/gra/EGU04-A-01855 c European (benoit@dstu.univ-montp2.fr), (2) Department of Geology and Geophysics, Texas A&M University, College

  20. Geophysical Research Abstracts, Vol. 8, 05723, 2006 SRef-ID: 1607-7962/gra/EGU06-A-05723

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Geophysical Research Abstracts, Vol. 8, 05723, 2006 SRef-ID: 1607-7962/gra/EGU06-A-05723 © European) Scripps Inst. of Oceanography, UCSD, la Jolla, USA, (3) Dpt of Geology and Geophysics, Univ. of Wyoming

  1. Geophysical Research Abstracts, Vol. 9, 11521, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-11521

    E-Print Network [OSTI]

    Jamieson, Bruce

    Geophysical Research Abstracts, Vol. 9, 11521, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-11521, University of Calgary, Calgary AB, Canada, (3) Department of Geology and Geophysics, University of Calgary

  2. Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen* and G. Michael Hoversten, Lawrence Berkeley National Laboratory

    E-Print Network [OSTI]

    Chen, Jinsong

    Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen to estimate porosity ( ) and water saturation (Sw) using multiple sources of information, including borehole the stochastic framework, both reservoir parameters and geophysical attributes at unsampled locations

  3. Towards a comprehensive open-source system for geophysical data processing

    E-Print Network [OSTI]

    Patterson, William P.

    used in seismic interpretation. These three components operate in parallel on a distributed computerTowards a comprehensive open-source system for geophysical data processing and interpretation Glenn of a broad range of geophysical data, with emphasis on reflection/refraction seismics. The package also

  4. Reducing the Dimensionality of Geophysical Data in Conjunction with Seismic History Matching

    E-Print Network [OSTI]

    Eidsvik, Jo

    dimensional geophysical data, e.g. 2-D seismic images or 3-D seismic cubes, can often be described using only by geophysical observations and the complexity of working with 3D fields make the updating procedure hard. We are tested on a reservoir model of an anonymous North Sea oil field, using the seismic time shift, i

  5. Allan variance computed in space domain: Application to InSAR data to characterize noise and geophysical signal

    E-Print Network [OSTI]

    Cavalié, Olivier

    2015-01-01

    The Allan variance was introduced fifty years ago for analyzing the stability of frequency standards. Beside its metrological interest, it is also an estimator of the large trends of the power spectral density (PSD) of frequency deviation. For instance, the Allan variance is able to discriminate different types of noise characterized by different power laws in the PSD. But, it was also used in other fields: accelerometry, geophysics, geodesy, astrophysics and even finances! However, it seems that up to now, it has been exclusively applied for time series analysis. We propose here to use the Allan variance onto spatial data. Interferometric synthetic aperture radar (InSAR) is used in geophysics to image ground displacements in space (over the SAR image spatial coverage) and in time thank to the regular SAR image acquisitions by dedicated satellites. The main limitation of the technique is the atmospheric disturbances that affect the radar signal while traveling from the sensor to the ground and back. In this p...

  6. Lattice-Boltzmann Method for Geophysical Plastic Flows

    E-Print Network [OSTI]

    Leonardi, Alessandro; Mendoza, Miller; Herrmann, Hans J

    2015-01-01

    We explore possible applications of the Lattice-Boltzmann Method for the simulation of geophysical flows. This fluid solver, while successful in other fields, is still rarely used for geotechnical applications. We show how the standard method can be modified to represent free-surface realization of mudflows, debris flows, and in general any plastic flow, through the implementation of a Bingham constitutive model. The chapter is completed by an example of a full-scale simulation of a plastic fluid flowing down an inclined channel and depositing on a flat surface. An application is given, where the fluid interacts with a vertical obstacle in the channel.

  7. Atmospheric and Geophysical Sciences Division Program Report, 1988--1989

    SciTech Connect (OSTI)

    Not Available

    1990-06-01

    In 1990, the Atmospheric and Geophysical Sciences Division begins its 17th year as a division. As the Division has grown over the years, its modeling capabilities have expanded to include a broad range of time and space scales ranging from hours to decades and from local to global. Our modeling is now reaching out from its atmospheric focus to treat linkages with the oceans and the land. In this report, we describe the Division's goal and organizational structure. We also provide tables and appendices describing the Division's budget, personnel, models, and publications. 2 figs., 1 tab.

  8. BSU Geophysics Field Camp Report 2012 | 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 QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowaWisconsin: EnergyYorkColorado State Office JumpUtahPlc Jump to:Geophysics

  9. This article was downloaded by: [Institute of Geology and Geophysics of CAS] On: 29 November 2011, At: 16:34

    E-Print Network [OSTI]

    Tian, Weidong

    This article was downloaded by: [Institute of Geology and Geophysics of CAS] On: 29 November 2011 a & Dunyi Liu b a Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China b Beijing Fana and Dunyi Liub a Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

  10. Transition study plans for current G&G students OPTION 1: Majors -Geology, Geophysics and Spatial Information Major

    E-Print Network [OSTI]

    Transition study plans for current G&G students OPTION 1: Majors - Geology, Geophysics and Spatial Approved Level II Remote Sensing III Geology Summer Sch GIS for Environmental Management III Geophysics Semester 1 Tectonics III Igneous & Metamorphic Geology III Geophysics III Exploration Methods III Semester

  11. Dear Susan, On behalf of the entire Near Surface Geophysics Section (NSGS) of the Society of Exploration

    E-Print Network [OSTI]

    Dear Susan, On behalf of the entire Near Surface Geophysics Section (NSGS) of the Society of Exploration Geophysicists (SEG) and Environmental and Engineering Geophysical Society (EEGS), I would like extraordinary leadership in advancing the cause of near surface geophysics through longterm, tireless

  12. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A new 1.6-micron map of Titan's surface

    E-Print Network [OSTI]

    Brown, Michael E.

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, A new 1.6-micron map of Titan's surface are likely craters. Accepted for publication in Geophysical Research Letters. Copyright 2004 American Geophysical Union. Further re- production or electronic distribution is not permitted. 1. Introduction

  13. Geophysical Research Abstracts, Vol. 9, 06422, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-06422

    E-Print Network [OSTI]

    Brückl, Ewald

    Geophysical Research Abstracts, Vol. 9, 06422, 2007 SRef-ID: 1607-7962/gra/EGU2007-A-06422 © European Geosciences Union 2007 Deep Alpine Valleys - examples of geophysical explorations in Austria E. Brückl (1), J. Brückl (2), W. Chwatal (1), Ch. Ullrich (1,3) (1) Institute of Geodesy and Geophysics

  14. GEOPHYSICS, VOL. 67, NO. 5 (SEPTEMBER-OCTOBER 2002); P. 15321541, 5 FIGS. 10.1190/1.1512749

    E-Print Network [OSTI]

    Utah, University of

    GEOPHYSICS, VOL. 67, NO. 5 (SEPTEMBER-OCTOBER 2002); P. 1532­1541, 5 FIGS. 10.1190/1.1512749 3-D inhomogeneous geological structures is a challenging problem in exploration geophysics. Despite significant of Geology and Geophysics, Salt Lake City, Utah 84112. E-mail: oleg@cs.utah.edu; mzhdanov@mines.utah.edu. c

  15. Joint stochastic inversion of geophysical data for reservoir parameter estimation Jinsong Chen* and G. Michael Hoversten, Lawrence Berkeley National Laboratory

    E-Print Network [OSTI]

    Chen, Jinsong

    studies, reservoir parameters as well as geophysical attributes at unsampled locations were considered relationships between the reservoir parameters and the geophysical attributes were enforced. Those methods and the geophysical attributes. Unlike conventional inversion, our stochastic inversion of seismic P-wave velocity

  16. Extracting Operating Modes from Building Electrical Load Data: Preprint

    SciTech Connect (OSTI)

    Frank, S.; Polese, L. G.; Rader, E.; Sheppy, M.; Smith, J.

    2012-01-01

    Empirical techniques for characterizing electrical energy use now play a key role in reducing electricity consumption, particularly miscellaneous electrical loads, in buildings. Identifying device operating modes (mode extraction) creates a better understanding of both device and system behaviors. Using clustering to extract operating modes from electrical load data can provide valuable insights into device behavior and identify opportunities for energy savings. We present a fast and effective heuristic clustering method to identify and extract operating modes in electrical load data.

  17. User's manual for geophysical well-logging software programs

    SciTech Connect (OSTI)

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

    1983-02-01

    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.

  18. Spatial correlation structure estimation using geophysical and hydrogeological data

    E-Print Network [OSTI]

    Hubbard, Susan

    and sufficient hydraulic property measurements using conventional sampling techniques, render estimation the spatial correlation structure of these properties using these conventional field sampling techniques) hydrological techniques require drilling, and the installed wells change the nature of the flow processes

  19. High Temperatures & Electricity Demand

    E-Print Network [OSTI]

    High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

  20. Capacity Markets for Electricity

    E-Print Network [OSTI]

    Creti, Anna; Fabra, Natalia

    2004-01-01

    England and Wales Electricity Market”, Power Working PaperFelder (1996), “Should Electricity Markets Have a Capacityand Competitive Electricity Markets”, mimeo, IDEI, available

  1. Capacity Markets for Electricity

    E-Print Network [OSTI]

    Creti, Anna; Fabra, Natalia

    2004-01-01

    and design of electricity capacity markets. Our work has twoMarkets for Electricity capacity markets, and so, when thesemain features of electricity capacity markets. We have used

  2. Retail Electricity Competition

    E-Print Network [OSTI]

    Joskow, Paul; Tirole, Jean

    2004-01-01

    Reliability and Competitive Electricity Markets” mimeo, MITCSEM WP 130 Retail Electricity Competition * Paul Joskow andwww.ucei.org Retail Electricity Competition ? Paul Joskow †

  3. Designing Electricity Auctions

    E-Print Network [OSTI]

    Fabra, Natalia; von der Fehr, Nils-Henrik; Harbord, David

    2004-01-01

    market performance in electricity auctions, it appears thatMcSorely (2001) “Regulating Electricity Markets: Experiencethe United Kingdom,” The Electricity Journal, December, 81-

  4. Electrical Safety

    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 Rank EERE:FinancingPetroleum Based|DepartmentStatementofApril 25,EVtheEnergyPreparedElectricalNOT

  5. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Renewable Electricity Generation and Storage Technologies for Sustainable Energy, LLC. #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable;Suggested Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory

  6. ELECTRICAL ENGINEERING EECS Department

    E-Print Network [OSTI]

    ELECTRICAL ENGINEERING EECS Department The Electrical Engineering and Computer Science (EECS) Department at WSU offers undergraduate degrees in electrical engineering, computer engineering and computer science. The EECS Department offers master of science degrees in computer science, electrical engineering

  7. Electrical receptacle

    DOE Patents [OSTI]

    Leong, R.

    1993-06-22

    The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

  8. Geophysical methods for fracture characterization in and around potential sites for nuclear waste disposal

    SciTech Connect (OSTI)

    Majer, E.L.; Lee, K.H. ); Morrison, H.F. )

    1992-08-01

    Historically, geophysical methods have been used extensively to successfully explore the subsurface for petroleum, gas, mineral, and geothermal resources. Their application, however, for site characterization, and monitoring the performance of near surface waste sites or repositories has been somewhat limited. Presented here is an overview of the geophysical methods that could contribute to defining the subsurface heterogeneity and extrapolating point measurements at the surface and in boreholes to volumetric descriptions in a fractured rock. In addition to site characterization a significant application of geophysical methods may be in performance assessment and in monitoring the repository to determine if the performance is as expected.

  9. Integrated Geophysical Exploration of a Known Geothermal Resource...

    Open Energy Info (EERE)

    the means for heated water to migrate to the surface. Electrical and magnetic surveys offer methods to locate hydrothermal waters near the surface by identifying areas affected...

  10. COURSE OUTLINE EE 4PM4 Electrical Power Systems

    E-Print Network [OSTI]

    Haykin, Simon

    COURSE OUTLINE EE 4PM4 Electrical Power Systems Academic Year 2014-15; Term 2; Jan. to May 2015 systems. To gain an appreciation of electrical power system protection techniques. Define and qualify issues relating to electrical power quality and the impact thereof on plant and customer loads. To study

  11. Parameterization of geophysical inversion model using particle clustering

    E-Print Network [OSTI]

    Yang, Dikun

    2015-01-01

    This paper presents a new method of constructing physical models in a geophysical inverse problem, when there are only a few possible physical property values in the model and they are reasonably known but the geometry of the target is sought. The model consists of a fixed background and many small "particles" as building blocks that float around in the background to resemble the target by clustering. This approach contrasts the conventional geometric inversions requiring the target to be regularly shaped bodies, since here the geometry of the target can be arbitrary and does not need to be known beforehand. Because of the lack of resolution in the data, the particles may not necessarily cluster when recovering compact targets. A model norm, called distribution norm, is introduced to quantify the spread of particles and incorporated into the objective function to encourage further clustering of the particles. As proof of concept, 1D magnetotelluric inversion is used as example. My experiments reveal that the ...

  12. Flow networks: A characterization of geophysical fluid transport

    E-Print Network [OSTI]

    Enrico Ser-Giacomi; Vincent Rossi; Cristobal Lopez; Emilio Hernandez-Garcia

    2015-03-05

    We represent transport between different regions of a fluid domain by flow networks, constructed from the discrete representation of the Perron-Frobenius or transfer operator associated to the fluid advection dynamics. The procedure is useful to analyze fluid dynamics in geophysical contexts, as illustrated by the construction of a flow network associated to the surface circulation in the Mediterranean sea. We use network-theory tools to analyze the flow network and gain insights into transport processes. In particular we quantitatively relate dispersion and mixing characteristics, classically quantified by Lyapunov exponents, to the degree of the network nodes. A family of network entropies is defined from the network adjacency matrix, and related to the statistics of stretching in the fluid, in particular to the Lyapunov exponent field. Finally we use a network community detection algorithm, Infomap, to partition the Mediterranean network into coherent regions, i.e. areas internally well mixed, but with little fluid interchange between them.

  13. Atmospheric and Geophysical Sciences Division: Program report, FY 1987

    SciTech Connect (OSTI)

    Not Available

    1988-05-01

    In 1988 the Atmospheric and Geophysical Sciences Division began its 15th year as a division. As the Division has grown over the years, its modeling capabilities have expanded to include a broad range of time and space scales ranging from hours to years, and from kilometers to global, respectively. For this report, we have chosen to show a subset of results from several projects to illustrate the breadth, depth, and diversity of the modeling activities that are a major part of the Division's research, development, and application efforts. In addition, the recent reorganization of the Division, including the merger of another group with the Division, is described, and the budget, personnel, models, and publications are reviewed. 95 refs., 26 figs., 2 tabs.

  14. Geophysical Monitoring of Ground Surface Deformation Associated with a Confined Aquifer Storage and Recovery Operation

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Bonneville, Alain; Heggy, Essam; Strickland, Christopher E.; Normand, Jonathan; Dermond, Jeffrey A.; Fang, Yilin; Sullivan, E. C.

    2015-08-11

    A main issue in the storage of large volumes of fluids, mainly water and CO2, in the deep subsurface is to determine their field-scale-induced displacements and consequences on the mechanical behavior of the storage reservoir and surroundings. A quantifiable estimation of displacement can be made by combining the robust, cost-effective, and repeatable geophysical techniques of micro-gravimetry, differential global positioning system (DGPS), and differential synthetic aperture radar interferometry (DInSAR). These techniques were field tested and evaluated in an active large-volume aquifer storage and recovery (ASR) project in Pendleton, Oregon, USA, where three ASR wells are injecting up to 1.9 million m3/yr-1more »into basalt aquifers to a depth of about 150 m. Injection and recovery of water at the wells was accompanied by significant gravity anomalies and vertical deformation of the ground surface localized to the immediate surroundings of the injection wells as evidenced by DGPS and gravity measurements collected in 2011. At a larger scale, and between 2011 and 2013, DInSAR monitoring of the Pendleton area suggests the occurrence of sub-centimetric deformation in the western part of the city and close to the injection locations associated with the ASR cycle. A numerical simulation of the effect of the water injection gives results in good agreement with the observations and confirms the validity of the approach, which could be deployed in similar geological contexts to look at the mechanical effects of water and gas injections. The gravity signal reflects deep phenomena and gives additional insight into the repartition of fluids in the subsurface.« less

  15. Abstract--In models of imperfect competition of deregulated electricity markets, the key task is to find the Nash equilibrium

    E-Print Network [OSTI]

    Baldick, Ross

    1 Abstract--In models of imperfect competition of deregulated electricity markets, the key task techniques are adopted in this paper. Two example application problems arising from electricity markets Terms-- Bimatrix Game, Complementarity Problem, Deregulation, Dominated Strategy, Electric Power Market

  16. Reprint -Proceedings 2009 International Pittsburgh Coal Conference 1 GEOPHYSICAL CHARACTERIZATION OF THE MARSHALL

    E-Print Network [OSTI]

    Wilson, Thomas H.

    Reprint - Proceedings 2009 International Pittsburgh Coal Conference 1 GEOPHYSICAL CHARACTERIZATION, Director National Research Center for Coal and Energy Richard A. Winschel, Director Research Services coal seam in the Northern Appalachian Basin. Researchers from CONSOL Energy Inc., West Virginia

  17. Geology and Geophysics at The University of Kansas Geology's High-Tech Revolution

    E-Print Network [OSTI]

    GHAWKER Geology and Geophysics at The University of Kansas Fall 2009 Geology's High-Tech Revolution Associates Program of the Kansas University Endowment Association. The High-Tech Revolution A geologist

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

    E-Print Network [OSTI]

    Santos, Juan

    Course: Numerical Simulation in Applied Geophysics. From the Mesoscale to the Macroscale Professor variations in the fluid and solid matrix properties, fine layering, frac- tures and craks at the mesoscale

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

    E-Print Network [OSTI]

    Gregg, Patricia Michelle Marie

    2008-01-01

    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 ...

  20. Geologic and geophysical investigation of a small water retention structure, Salado, Tx 

    E-Print Network [OSTI]

    Carter, James Lewis

    2002-01-01

    erosion. Although such problems do not pose a significant risk to life or property, they do pose a financial liability to the landowner. For those whose ponds are undergoing such problems, a basic geological and geophysical investigation can help...

  1. Geology and Geophysics 454: Engineering Geology Spring Semester, 2015, 3.0 Units

    E-Print Network [OSTI]

    1 Geology and Geophysics 454: Engineering Geology Spring Semester, 2015: "Engineering Geology" by Perry Rahn, or "Practical Engineering Geology" by Steve Hencher Class Themes This class emphasizes a modern approach to engineering geology

  2. Department of Geology & Geophysics, Spring 2015 GG304: Physics of the Earth and Planets

    E-Print Network [OSTI]

    1 Department of Geology & Geophysics, Spring 2015 GG304: Physics of the Earth and Planets The Earth's shape, orbit, interior structure, and geological evolution are all the result of the interaction

  3. Ng Chung-Sung Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska 99775, USA

    E-Print Network [OSTI]

    Ng, Chung-Sang

    Ng Chung-Sung C. S. Ng Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska in a statistical steady state [Ng and Bhattacharjee, Astrophys. J., 675, 899 (2008)]. Our numerical work has now

  4. Geophysical applications of nuclear resonant spectroscopy Wolfgang Sturhahn and Jennifer M. Jackson*

    E-Print Network [OSTI]

    Jackson, Jennifer M.

    Geophysical applications of nuclear resonant spectroscopy Wolfgang Sturhahn and Jennifer M. Jackson summarize recent developments of nuclear resonant spectroscopy methods like nuclear resonant inelastic x important information on valence, spin state, and magnetic ordering. Both methods use a nuclear resonant

  5. Marine Geophysical Researches 20: 403423, 1998. 1998 Kluwer Academic Publishers. Printed in the Netherlands.

    E-Print Network [OSTI]

    Cattin, Rodolphe

    Marine Geophysical Researches 20: 403­423, 1998. © 1998 Kluwer Academic Publishers. Printed in the Netherlands. 403 A detailed study of the Gagua Ridge: A fracture zone uplifted during a plate reorganisation

  6. University of Strathclyde Dpt of Electric Electrical Engineering...

    Open Energy Info (EERE)

    Strathclyde Dpt of Electric Electrical Engineering Institute for Energy and Enviro Jump to: navigation, search Name: University of Strathclyde, Dpt of Electric & Electrical...

  7. Electrical Generation for More-Electric Aircraft using Solid...

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

    Electrical Generation for More-Electric Aircraft using Solid Oxide Fuel Cells Electrical Generation for More-Electric Aircraft using Solid Oxide Fuel Cells This study, completed by...

  8. Estimating the Value of Electricity Storage Resources in Electricity...

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

    Value of Electricity Storage Resources in Electricity Markets - EAC 2011 Estimating the Value of Electricity Storage Resources in Electricity Markets - EAC 2011 The purpose of this...

  9. Stargate: Energy Management Techniques

    E-Print Network [OSTI]

    Vijay Raghunathan; Mani Srivastava; Trevor Pering; Roy Want

    2004-01-01

    Stargate: Energy Management Techniques Vijay Raghunathan,Platform specific energy management is crucial for longSolution: System level energy management techniques and

  10. Reduces electric energy consumption

    E-Print Network [OSTI]

    BENEFITS · Reduces electric energy consumption · Reduces peak electric demand · Reduces natural gas consumption · Reduces nonhazardous solid waste and wastewater generation · Potential annual savings products for the automotive industry, electrical equipment, and miscellaneous other uses nationwide. ALCOA

  11. Superconductivity for Electric Systems

    E-Print Network [OSTI]

    Superconductivity Program Oak Ridge National Laboratory For: Department of Energy Office of Electricity Delivery and Energy Reliability ­ Superconductivity for Electric Systems #12;3 Control Milestones and Status ControlSuperconductivity for Electric Systems Superconductivity Program Quarterly Progress Report

  12. Geophysical Prospecting, 2015 doi: 10.1111/1365-2478.12211 Geomechanical property estimation of unconventional reservoirs using

    E-Print Network [OSTI]

    Chen, Jinsong

    Geophysical Prospecting, 2015 doi: 10.1111/1365-2478.12211 Geomechanical property estimation rock property for the geomechanical response of unconventional reservoir fracking) is demonstrated

  13. LABORATORY II ELECTRIC FIELDS AND ELECTRIC POTENTIALS

    E-Print Network [OSTI]

    Minnesota, University of

    Lab II - 1 LABORATORY II ELECTRIC FIELDS AND ELECTRIC POTENTIALS In this lab you will continue the concepts of field and potential are abstract and difficult to visualize, this laboratory uses a computer and electric potential at any point in space. OBJECTIVES After successfully completing this laboratory, you

  14. Electrical safety guidelines

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    The Electrical Safety Guidelines prescribes the DOE safety standards for DOE field offices or facilities involved in the use of electrical energy. It has been prepared to provide a uniform set of electrical safety standards and guidance for DOE installations in order to affect a reduction or elimination of risks associated with the use of electrical energy. The objectives of these guidelines are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment.

  15. DOE handbook electrical safety

    SciTech Connect (OSTI)

    1998-01-01

    Electrical Safety Handbook presents the Department of Energy (DOE) safety standards for DOE field offices or facilities involved in the use of electrical energy. It has been prepared to provide a uniform set of electrical safety guidance and information for DOE installations to effect a reduction or elimination of risks associated with the use of electrical energy. The objectives of this handbook are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment.

  16. Daylighting, dimming, and the electricity crisis in California

    SciTech Connect (OSTI)

    Rubinstein, Francis; Neils, Danielle; Colak, Nesrin

    2001-09-17

    Dimming controls for electric lighting have been one of the mainstays of the effort to use daylighting to reduce annual lighting energy consumption. The coincidence of daylighting with electric utility peak demand makes daylighting controls an effective strategy for reducing commercial building peak electric loads. During times of energy shortage, there is a greatly increased need to reduce electricity use during peak periods, both to ease the burden on electricity providers and to control the operating costs of buildings. The paper presents a typical commercial building electric demand profile during summer, and shows how daylighting-linked lighting controls and load shedding techniques can reduce lighting at precisely those times when electricity is most expensive. We look at the importance of dimming for increasing the reliability of the electricity grid in California and other states, as well as examine the potential cost-effectiveness of widespread use of daylighting to save energy and reduce monthly electricity bills.

  17. Spectral estimation on a sphere in geophysics and cosmology

    E-Print Network [OSTI]

    F. A. Dahlen; Frederik J Simons

    2007-05-22

    We address the problem of estimating the spherical-harmonic power spectrum of a statistically isotropic scalar signal from noise-contaminated data on a region of the unit sphere. Three different methods of spectral estimation are considered: (i) the spherical analogue of the one-dimensional (1-D) periodogram, (ii) the maximum likelihood method, and (iii) a spherical analogue of the 1-D multitaper method. The periodogram exhibits strong spectral leakage, especially for small regions of area $A\\ll 4\\pi$, and is generally unsuitable for spherical spectral analysis applications, just as it is in 1-D. The maximum likelihood method is particularly useful in the case of nearly-whole-sphere coverage, $A\\approx 4\\pi$, and has been widely used in cosmology to estimate the spectrum of the cosmic microwave background radiation from spacecraft observations. The spherical multitaper method affords easy control over the fundamental trade-off between spectral resolution and variance, and is easily implemented regardless of the region size, requiring neither non-linear iteration nor large-scale matrix inversion. As a result, the method is ideally suited for most applications in geophysics, geodesy or planetary science, where the objective is to obtain a spatially localized estimate of the spectrum of a signal from noisy data within a pre-selected and typically small region.

  18. Electricity Monthly Update

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

    The Electric Power Sector comprises electricity-only and combined heat and power (CHP) plants within the North American Industrial Classification System 22 category whose...

  19. California's electricity crisis

    E-Print Network [OSTI]

    Joskow, Paul L.

    2001-01-01

    The collapse of California's electricity restructuring and competition program has attracted attention around the world. Prices in California's competitive wholesale electricity market increased by 500% between the second ...

  20. Edison Electric Institute Update

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—discusses the Edison Electric Institute (EEI) and the current electricity landscape.

  1. Electricity Monthly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    West having a 1.1 percent decrease in electricity generation compared to last February. Electricity generation from coal increased in all regions of the country, with Florida...

  2. Random Walks and Electrical

    E-Print Network [OSTI]

    Jonathon Peterson

    2008-01-30

    Feb 4, 2008 ... Electrical Network Calculations in Random Walks in. Random ... Markov Chains. 2. Electrical Networks and Reversible Markov Chains. 3.

  3. Electricity Monthly Update

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

    End Use: December 2014 Retail ratesprices and consumption In this section, we look at what electricity costs and how much is purchased. Charges for retail electric service are...

  4. Electricity Monthly Update

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

    See all Electricity Reports Electricity Monthly Update With Data for November 2014 | Release Date: Jan. 26, 2015 | Next Release Date: Feb. 24, 2015 Previous Issues Issue:...

  5. ELECTRICAL, COMPUTER, & ENERGY ENGINEERING

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    ELECTRICAL, COMPUTER, & ENERGY ENGINEERING GRADUATE STUDY GUIDE FALL 2014 ­ SPRING 2015 University of Colorado at Boulder Department of Electrical, Computer & Energy Engineering Graduate Office Campus Box 425

  6. 2012 National Electricity Forum

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

    U.S. Department of Energy U.S. Department of Energy National Electric Transmission Congestion Study Workshop - December 6, 2011 National Electric Transmission Congestion Study...

  7. AIR INFILTRATION MEASUREMENT TECHNIQUES

    E-Print Network [OSTI]

    Sherman, M.H.

    2013-01-01

    serious study of research problems in infiltration. THEORYInfiltration Measurement Techniques REFERENCES J .B. Dick, "Experimental Studies

  8. Electricity Demand and Energy Consumption Management System

    E-Print Network [OSTI]

    Sarmiento, Juan Ojeda

    2008-01-01

    This project describes the electricity demand and energy consumption management system and its application to the Smelter Plant of Southern Peru. It is composted of an hourly demand-forecasting module and of a simulation component for a plant electrical system. The first module was done using dynamic neural networks, with backpropagation training algorithm; it is used to predict the electric power demanded every hour, with an error percentage below of 1%. This information allows management the peak demand before this happen, distributing the raise of electric load to other hours or improving those equipments that increase the demand. The simulation module is based in advanced estimation techniques, such as: parametric estimation, neural network modeling, statistic regression and previously developed models, which simulates the electric behavior of the smelter plant. These modules allow the proper planning because it allows knowing the behavior of the hourly demand and the consumption patterns of the plant, in...

  9. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Exploration of High-Penetration Renewable Electricity Futures PDF Volume 4 PDF #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory. (2012

  10. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Bulk Electric Power Systems: Operations and Transmission by the Alliance for Sustainable Energy, LLC. #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Suggested Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory

  11. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study End-use Electricity Demand Volume 3 of 4 Volume 2 PDF Volume 3;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Energy Laboratory Baldwin, S. U Sandor, D. National Renewable Energy Laboratory Suggested Citations Renewable Electricity Futures Study

  12. ELECTRICAL ENGINEERING Curriculum Notes

    E-Print Network [OSTI]

    Mohan, Chilukuri K.

    ELECTRICAL ENGINEERING Curriculum Notes 2013-2014 1. Electrical Engineering (EE) students must/programs/electrical_engineering) and minors are used to regulate technical electives. A student must complete four technical elective courses in Electrical Engineering or Computer Engineering. At a minimum

  13. Electrical & Computer Engineering

    E-Print Network [OSTI]

    Electrical & Computer Engineering 2014-2015AcademicYearHandbook Doctor of Philosophy in Electrical is for the internal use of the Department of Electrical and Computer Engineering at Carnegie Mellon University only permission of the Department Head of Department of Electrical and Computer Engineering. #12;2 Table

  14. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "Agile Sensing Systems: Analysis, Design and Implementation" by Prof. Jun (Jason) Zhang Electrical and Computer Engineering University of Denver Tuesday of Electrical and Computer Engineering at the University of Denver. He was with the School of Electrical

  15. Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios

    E-Print Network [OSTI]

    Introduction Computational Efficiency Electricity Portfolio Planning Electricity Portfolios 2009/11/30­12/01 István Maros Electricity Portfolio #12;Introduction Computational Efficiency Electricity Portfolio Outline 1 Introduction 2 Computational Efficiency 3 Electricity Portfolio Approximate

  16. Analysis of snow in the 20th and 21st century Geophysical Fluid Dynamics Laboratory coupled climate model simulations

    E-Print Network [OSTI]

    Dery, Stephen

    Analysis of snow in the 20th and 21st century Geophysical Fluid Dynamics Laboratory coupled climate Northern Hemisphere, North American, and Eurasian snow cover extent, frequency, and mass by the Geophysical cycle in Northern Hemisphere snow cover extent and produce a mean annual snow area of 25 Â 106 km2

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

    E-Print Network [OSTI]

    Joseph, Tim Grain

    at CAMI, September 8 ­ 10, 2003, Calgary, Alberta) Tim Grain Joseph, Ph.D., P.Eng., Asst. Professor, Mining, University of Alberta & Principal Engineer, JPi Ltd. and Marek Welz, B.Sc., Geophysical Field Manager & Graduate Student, Geophysics, University of Alberta. ABSTRACT Joseph (2002) and Joseph

  18. Collaborative Research: hydrogeological-geophysical methods for subsurface site characterization. 1998 annual progress report

    SciTech Connect (OSTI)

    Mavko, G. [Stanford Univ., CA (US); Rubin, Y.N. [Univ. of California, Berkeley, CA (US)

    1998-06-01

    'The general purpose is the subsurface characterization of LLNL superfund site. The goal is to get the most accurate map of the hydrogeological parameters, necessary for modeling and designing the cleanup efforts at the site, using well log data and remote sensing geophysical techniques. In the second year of the project progress has been made in several areas: gathering and interpreting Vertical Seismic Profile (VSP) and Electromagnetic (EM) surveys; investigating the impact of various seismic measurements on upscaling of rock physics relations between sediment properties; and developing a new approach to integrate geophysical and hydrological data using state of the art methods to characterize the subsurface lithology. Vertical Seismic Profile data has been gathered from selected wells at the Treatment Facility D (TFD) during April 1996 and April 1998. The most striking finding here is the detection of anomalies related to saturation conditions. Preliminary results have revealed three anomalously low acoustic velocity zones with velocities below 1,000 m/s; this is lower than the natural acoustic velocity in saturated media by pure water (1,500 m/s). These three zones appear to be associated with HSUs 3a, 3b and 5. Velocities below 600 m/s have been revealed in the 3a and 3b HSUs (http://www.ce.Berkeley.edu/{approximately}ezzedine/DOE/paul.html). The authors believe that these anomalies are indicative of partial saturation. This explanation is supported by the water samples taken from pumping stations near the VSP well sites which appears to contain air bubbles. A gas analysis of water samples has not yet been performed. The authors hypothesize that this gas can be either air being sucked-in from the vadose zone above the water table, or from some chemical reaction. As a matter of fact, the natural water table level at this site was around 20 m below ground surface before any large scale pumping began, and had dropped to 25.5 m, in April 98. Furthermore, some of these low velocity zones are occurring not only in the major free-flowing sand or gravel parts of the HSU, but in boundary layers of silty sand either above or below the main HSU conductor. An electromagnetic survey was conducted at the site during June 4--25, 1997, and they worked on its interpretation. Seven cross well EM data sets were collected. Both 1D and 2D simulations, approximating the actual site and survey setup, were conducted. The 1D simulations were conducted using the code EM1D for one data set. Newman and Alumbaugh''s 3D forward code was used to simulate the response of both a resistive layer (representing HSU 4) and a conductive layer at the same location. Three separate inversion algorithms were applied to the data: Newman and Alumbaugh''s 2.5D finite difference and integral solution algorithm, Alumbaugh''s iterative Born approximation with a cylindrical symmetry, and Tseng''s 3D extended born approximation. The field EM data are still being analyzed.'

  19. Status of data, major results, and plans for geophysical activities, Yucca Mountain Project

    SciTech Connect (OSTI)

    Oliver, H.W. [Geological Survey, Menlo Park, CA (USA); Hardin, E.L. [Science Applications International Corp., Las Vegas, NV (USA); Nelson, P.H. [Geological Survey, Denver, CO (USA)] [eds.

    1990-07-01

    This report describes past and planned geophysical activities associated with the Yucca Mountain Project and is intended to serve as a starting point for integration of geophysical activities. This report relates past results to site characterization plans, as presented in the Yucca Mountain Site Characterization Plan (SCP). This report discusses seismic exploration, potential field methods, geoelectrical methods, teleseismic data collection and velocity structural modeling, and remote sensing. This report discusses surface-based, airborne, borehole, surface-to-borehole, crosshole, and Exploratory Shaft Facility-related activities. The data described in this paper, and the publications discussed, have been selected based on several considerations; location with respect to Yucca Mountain, whether the success or failure of geophysical data is important to future activities, elucidation of features of interest, and judgment as to the likelihood that the method will produce information that is important for site characterization. 65 refs., 19 figs., 12 tabs.

  20. Tools and techniques for failure analysis and qualification of MEMS.

    SciTech Connect (OSTI)

    Walraven, Jeremy Allen

    2003-07-01

    Many of the tools and techniques used to evaluate and characterize ICs can be applied to MEMS technology. In this paper we discuss various tools and techniques used to provide structural, chemical, and electrical analysis and how these data aid in qualifying MEMS technologies.

  1. Archaeological investigations using geophysics at Chimney Rock Great House, Colorado Michael A. Mitchell, Sarah G.R. Devriese, Roxanna N. Frary, Richard A. Krahenbuhl, Brenda K. Todd,

    E-Print Network [OSTI]

    Archaeological investigations using geophysics at Chimney Rock Great House, Colorado Michael A of Geophysics, Colorado School of Mines Department of Anthropology, University of Colorado, Boulder SUMMARY In this talk, we present results from a geophysical investiga- tion at the Chimney Rock Great House using

  2. Inverse Modeling and Geostatistics Project 17/04/2008DTU Geophysics research group meeting -2010-05-052 DTU Informatics, Technical University of Denmark

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Inverse Modeling and Geostatistics Project #12;17/04/2008DTU Geophysics research group meeting Geophysics research group meeting - 2010-05-053 DTU Informatics, Technical University of Denmark Bayesian PROBLEM? #12;17/04/2008DTU Geophysics research group meeting - 2010-05-054 DTU Informatics, Technical

  3. The Institute of Geophysics, Planetary Physics and Signatures (IGPPS) at Los Alamos National Laboratory (LANL) is one of the Los Alamos National Laboratory science

    E-Print Network [OSTI]

    The Institute of Geophysics, Planetary Physics and Signatures (IGPPS) at Los Alamos National: · Geophysics · Global Climate · Space Science · Astrophysics and Cosmology FY15 CALL FOR RESEARCH PROPOSALS and quality of life in our increasingly technological society. 3. Solid earth geoscience (geophysics

  4. CorrelationF unctions of Random Media Summary ---In geophysics, the correlation functions of random media are of principal importance for

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    CorrelationF unctions of Random Media LUDE Ÿ K KLIMES Ÿ 1 Summary --- In geophysics, in a simple general form enabling the random media used in geophysics to be specified. The medium correlation.g., SHAPIRO and KNEIB, 1993; SHAPIRO et al., 1996; MU Ë? LLER and SHAPIRO, 2001). 1 Department of Geophysics

  5. 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]

    Barrash, Warren

    Student-based archaeological geophysics in northern Thailand Emily A. Hinz*, Lee M. Liberty of Western Australia Summary As part of the 2010 near-surface geophysics workshop in Chiang Mai, Thailand, local archaeological targets were used as a basis for teaching geophysical data collection, processing

  6. GEOPHYSICS, VOL. 54, NO. 9 (SEPTEMBER 1989): P. 1153-I 163, 14 FIGS.. 4 TABLES. Stability of wide-angle absorbing boundary conditions

    E-Print Network [OSTI]

    Renaut, Rosemary

    GEOPHYSICS, VOL. 54, NO. 9 (SEPTEMBER 1989): P. 1153-I 163, 14 FIGS.. 4 TABLES. Stability of wide and numerically. Our numerical results confirm that INTRODUCTION Many geophysical problems, including modeling-1804. *Bergen Scientific Centre, IBM, N5006 Bergen, Norway. 0 1989 Society of Exploration Geophysic

  7. Inverse Modeling and Geostatistics Project 17/04/2008DTU Geophysics research group meeting -2010-09-102 DTU Informatics, Technical University of Denmark

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Inverse Modeling and Geostatistics Project #12;17/04/2008DTU Geophysics research group meetingModelingandGeostatisticsProject #12;17/04/2008DTU Geophysics research group meeting - 2010-09-103 DTU Informatics, Technical #12;17/04/2008DTU Geophysics research group meeting - 2010-09-105 DTU Informatics, Technical

  8. 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]

    Johnson, Cari

    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

  9. ECE 438 Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric

    E-Print Network [OSTI]

    ECE 438 ­ Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric vehicle configurations. Vehicle mechanics. Energy sources and storage. Range prediction. Motor for HEVs. Electric drive components. Vehicle transmission system. Credits

  10. Geophysical Research Abstracts Vol. 13, EGU2011-8904, 2011

    E-Print Network [OSTI]

    Jones, Alan G.

    . Ireland is located within stable lithosphere, lacks high-enthalpy geothermal systems associated(s) 2011 IRETHERM: A New Project to Develop a Strategic and Holistic Understanding of Ireland's Geothermal's subsurface geology to provide geothermal energy for district-scale space-heating and electricity generation

  11. JournalofGeophysicalResearch: SpacePhysics RESEARCH ARTICLE

    E-Print Network [OSTI]

    Ebert, Ute

    -Rojas, Y. Yair, and C. Price (2014), Coupling between atmospheric layers in gaseous giant planets due. Yair4 , and C. Price2 1Institute for Astrophysics of Andalusia, Granada, Spain, 2Department'anana, Israel Abstract Atmospheric electricity has been detected in all gaseous giants of our solar system

  12. Central Hudson Gas & Electric (Electric) - Residential Energy...

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

    residential electric customers who upgrade heating, cooling or ventilation systems with specific types of energy efficient equipment. These rebates include efficient central air...

  13. Baltimore Gas & Electric Company (Electric) - Residential Energy...

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

    DuctAir sealing Building Insulation Other EE LED Lighting Maximum Rebate Contact Baltimore Gas and Electric Program Info Sector Name Utility Website http:...

  14. Solid State Electron Transfer via Bacterial Nanowires: Contributions Toward a Mechanistic Understanding of Geophysical Response of Biostimulated Subsurface

    SciTech Connect (OSTI)

    Estella Atekwana

    2012-05-08

    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.

  15. 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

  16. Measuring and Reporting Fuel Economy of Plug-In Hybrid Electric Vehicles

    SciTech Connect (OSTI)

    Gonder, J.; Simpson, A.

    2006-11-01

    This paper reviews techniques used to characterize plug-in hybrid electric vehicle fuel economy, discussing their merits, limitations, and best uses.

  17. World Energy Projection System Plus Model Documentation: World Electricity Model

    Reports and Publications (EIA)

    2011-01-01

    This report documents the objectives, analytical approach and development of the World Energy Projection System Plus (WEPS ) World Electricity Model. It also catalogues and describes critical assumptions, computational methodology, parameter estimation techniques, and model source code.

  18. Electric arc saw apparatus

    DOE Patents [OSTI]

    Deichelbohrer, Paul R [Richland, WA

    1986-01-01

    A portable, hand held electric arc saw has a small frame for supporting an electrically conducting rotary blade which serves as an electrode for generating an electric arc to erode a workpiece. Electric current is supplied to the blade by biased brushes and a slip ring which are mounted in the frame. A pair of freely movable endless belts in the form of crawler treads stretched between two pulleys are used to facilitate movement of the electric arc saw. The pulleys are formed of dielectric material to electrically insulate the crawler treads from the frame.

  19. Technique for Measuring Hybrid Electronic Component Reliability

    SciTech Connect (OSTI)

    Green, C.C.; Hernandez, C.L.; Hosking, F.M.; Robinson, D.; Rutherford, B.; Uribe, F.

    1999-01-01

    Materials compatibility studies of aged, engineered materials and hardware are critical to understanding and predicting component reliability, particularly for systems with extended stockpile life requirements. Nondestructive testing capabilities for component reliability would significantly enhance lifetime predictions. For example, if the detection of crack propagation through a solder joint can be demonstrated, this technique could be used to develop baseline information to statistically determine solder joint lifelengths. This report will investigate high frequency signal response techniques for nondestructively evaluating the electrical behavior of thick film hybrid transmission lines.

  20. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01

    CEC (2009) Statewide Electricity Rates by Utility, Class andrates if the marginal electricity rate from the LCFS isestimated marginal electricity emissions rate in California’

  1. Electricity Grid: Impacts of Plug-In Electric Vehicle Charging

    E-Print Network [OSTI]

    Yang, Christopher; McCarthy, Ryan

    2009-01-01

    and timing of vehicle electricity demand. As the number ofcontinually changing electricity demands by using a suite ofif local patterns of electricity demand change significantly

  2. Assessing Vehicle Electricity Demand Impacts on California Electricity Supply

    E-Print Network [OSTI]

    McCarthy, Ryan W.

    2009-01-01

    fuel efficiency and electricity demand assumptions used into added vehicle electricity demand in the BAU (no IGCC)to added vehicle electricity demand in the Mixed technology

  3. Estimating the Value of Electricity Storage Resources in Electricity...

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

    understanding the role electricity storage resources (storage) can play in wholesale and retail electricity markets, 2) assessing the value of electricity storage in a variety of...

  4. Electric Utility Measurement & Verification Program 

    E-Print Network [OSTI]

    Lau, K.; Henderson, G.; Hebert, D.

    2007-01-01

    . Therefore, if the flow fluctuates from what is required, the gas must be recycled. The M&V technique used for this project was Option B, Metering. The analysis was based on liquid flow data and motor current data (used as a ESL-IE-07... is an electric utility with a service area covering over 95% of the province of British Columbia in Canada. Power Smart is BC Hydro?s demand-side-management (DSM) division. Power Smart develops, operates and manages various DSM programs for residential...

  5. Export demand response in the Ontario electricity market

    SciTech Connect (OSTI)

    Peerbocus, Nash; Melino, Angelo

    2007-11-15

    Export responses to unanticipated price shocks can be a key contributing factor to the rapid mean reversion of electricity prices. The authors use event analysis - a technique more familiar from financial applications - to demonstrate how hourly export transactions respond to negative supply shocks in the Ontario electricity market. (author)

  6. Key Directions and a Roadmap for Electrical Design for Manufacturability

    E-Print Network [OSTI]

    Kahng, Andrew B.

    Key Directions and a Roadmap for Electrical Design for Manufacturability (Invited Talk) Andrew B by design and design-for- manufacturability (DFM) techniques. This talk addresses trends and a roadmap assumptions come true? The second part will give a roadmap for electrical DFM technologies, motivated

  7. Category: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 QA:QA J-E-1 SECTION JEnvironmentalBowerbank,Cammack Village,8199089°,AnalyticalCuttingsElectrical Techniques

  8. Designing electricity transmission auctions

    E-Print Network [OSTI]

    Greve, Thomas; Pollitt, Michael G.

    2012-10-26

    The UK has ambitious plans for exploiting offshore wind for electricity production in order to meet its challenging target under the EU Renewable Energy Directive. This could involve investing up to 20bn in transmission assets to bring electricity...

  9. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-10-01

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  10. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2013-04-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  11. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M. M.

    2012-09-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  12. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-11-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  13. Massachusetts Electric Vehicle Efforts

    E-Print Network [OSTI]

    California at Davis, University of

    ,500 for full battery electric vehicle (BEV) and $5,000 for plug- in hybrid electric vehicle (PHEV) · Financial 39 Tesla 39 BMW 26 Toyota 7 Honda 3 Cadillac 3 Mitsubishi 2 #12;Department of Public Utilities · DPU

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

    E-Print Network [OSTI]

    Berkeley and Princeton University 2005 Postdoctoral Investigator, Woods Hole Oceanographic Institution 1998-1999 2013-present Member of Research Council at the Geophysical Fluid Dynamics Laboratory 2013 Steering of the Northeast Shelf Large Marine Ecosystem: Key Research Needs and Future Directions", July 2013, Providence RI

  15. Gaussian packet prestack depth migration Department of Geophysics, Faculty of Mathematics and Physics, Charles University,

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Gaussian packet prestack depth migration Karel #20; Z#19;a#20;cek Department of Geophysics, Faculty depth migration. The main advantage of our method over the methods based on Gaussian beams is a direct. Thus, the Gaussian packet prestack depth migration is especially suitable for a target-oriented imaging

  16. Adaptive Focusing Through Layered Media Using the Geophysical "Time Migration" Concept

    E-Print Network [OSTI]

    Illinois at Urbana-Champaign, University of

    Adaptive Focusing Through Layered Media Using the Geophysical "Time Migration" Concept Mark A. Haun migration. This tech- nique is motivated by considering complete, bistatic, pulse- echo data acquired from layered media, where sound speed is a function of depth only. Reflection travel times as a func- tion

  17. Gaussian packet pre--stack depth migration the Marmousi data Karel Zacek*, Department Geophysics, Faculty

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Gaussian packet pre--stack depth migration the Marmousi data Karel Zacek*, Department Geophysics--stack depth migration. method on Marmousi data (Versteeg & 1991). advantage over methods Gaussian beams. Thus, Gaussian packet pre--stack depth migration is especially suitable target--oriented imaging

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

    E-Print Network [OSTI]

    Pennycook, Steve

    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

  19. Discrimination and Identification of UXO by Geophysical Inversion. Phase II: Inversion of Total-Field Magnetics

    E-Print Network [OSTI]

    Oldenburg, Douglas W.

    Discrimination and Identification of UXO by Geophysical Inversion. Phase II: Inversion of Total to the discrimination and identification of unexploded ordnance using total-field magnetometry. A black in a predefined library. The discrimination method had the potential to reduce the number of excavations

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

    E-Print Network [OSTI]

    Johnson, Cari

    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

  1. Geology and Geophysics 303: Structural Geology Fall Semester, 2015, 3.0 Units

    E-Print Network [OSTI]

    Geology and Geophysics 303: Structural Geology Fall Semester, 2015, 3.0 Units Lectures: MW 10 Geology: An Introduction, by Pollard and Martel (PM) Basic Methods of Structural Geology, by Marshak geologic structures depends largely on how we perceive them. Few geologic structures form by trivially

  2. Tuesday, March 24, 2009 POSTER SESSION I: ICY SATELLITES: GELID GEOLOGY/GEOPHYSICS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Tuesday, March 24, 2009 POSTER SESSION I: ICY SATELLITES: GELID GEOLOGY/GEOPHYSICS 6:30 p.m. Town of recent tectonic activity on Europa logically starts with the geologically young, ridgeless surface Lunar and Planetary Science Conference (2009) full331.pdf #12;El Maarry M. R. Sierks H. Geological

  3. Tuesday, March 24, 2009 POSTER SESSION I: VENUS GEOLOGY, GEOPHYSICS, MAPPING, AND SAMPLING

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Tuesday, March 24, 2009 POSTER SESSION I: VENUS GEOLOGY, GEOPHYSICS, MAPPING, AND SAMPLING 6:30 p significantly during the observable portion of the geologic history from the catastrophic resurfacing to the equilibrium resurfacing. Ivanov M. A. Head J. W. Geological Mapping of the Fortuna Tessera Quadrangle (V-2

  4. From: Advances in Geophysics, 46, 81-197. 1 SEISMIC TRAVELTIME TOMOGRAPHY OF THE

    E-Print Network [OSTI]

    Rawlinson, Nick

    to describe a similar process using seismic waves to map earth structure. Seismologists now routinely useFrom: Advances in Geophysics, 46, 81-197. 1 SEISMIC TRAVELTIME TOMOGRAPHY OF THE CRUST, Canberra ACT 0200, Australia 1 Introduction 1.1 Motivation Seismic data represent one of the most valuable

  5. Reactive facies: An approach for parameterizing field-scale reactive transport models using geophysical methods

    E-Print Network [OSTI]

    Chen, Jinsong

    as pumping, slug and flowmeter tests) are commonly used to measure hydraulic conductivity in the vicinity is based on the hypothesis that subsurface units exist that have unique distributions of properties, hydraulic conductivity, and geophysical attributes. We use these correlations within a Bayesian framework

  6. Geophysically consistent values of the perovskite to post-perovskite transition Clapeyron slope

    E-Print Network [OSTI]

    Geophysically consistent values of the perovskite to post-perovskite transition Clapeyron slope J February 2007; published 15 March 2007. [1] The double-crossing hypothesis posits that post- perovskite in Earth's deep mantle and the temperature of Earth's inner core boundary, we show that a post-perovskite

  7. GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Hygroscopic Properties of Volcanic Ash

    E-Print Network [OSTI]

    Nenes, Athanasios

    GEOPHYSICAL RESEARCH LETTERS, VOL. ???, XXXX, DOI:10.1029/, Hygroscopic Properties of Volcanic Ash observational data exists on the physical interac- tions between volcanic ash particles and water vapor; yet it is thought that these interactions can strongly impact the microphysical evolution of ash, with implications

  8. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Interferometric electromagnetic Green's functions

    E-Print Network [OSTI]

    JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Interferometric electromagnetic of a direct pulse-echo ex- periment in a three-dimensional configuration. The con- dition-dimensional media. Wave propagation invariants have been used in acoustic, elastic and electromagnetic wave

  9. GEOPHYSICS, VOL. 64, NO. 5 (SEPTEMBER-OCTOBER 1999); P. 13471348 Computers and creativity

    E-Print Network [OSTI]

    Snieder, Roel

    GEOPHYSICS, VOL. 64, NO. 5 (SEPTEMBER-OCTOBER 1999); P. 1347­1348 Computers and creativity John A. Scales and Roel Snieder "The real danger is not that computers will begin to think like men, but that men will begin to think like computers."--Sydney J. Harris "Technical skill is mastery of complexity while

  10. USING GEOPHYSICAL METHODS TO IMAGE THE INTERNAL STRUCTURE OF MINE WASTE ROCK PILES

    E-Print Network [OSTI]

    Aubertin, Michel

    (GPR) geophysical methods have been used to study mine dumps. METHODS Resistivity measurements, at the same time as an infiltration test was carried out in order to map fluid flow within the mine dump out in July 2002, and in October 2002 before and after the infiltration test. Figure 3 shows a GPR

  11. 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 with the attendant environmental and climate concerns, have escalated the need for trained geophysicists then are closely guided by faculty, teaching assistants, and in- dustry visitors to analyze and interpret

  12. Augmented Geophysical Data Interpretation Through Automated Velocity Picking in Semblance Velocity Images

    E-Print Network [OSTI]

    Whitley, Darrell

    Augmented Geophysical Data Interpretation Through Automated Velocity Picking in Semblance Velocity on the surface. Currently, geophysicists spend hours, days or weeks in front of monitors tracing curves on images of these cor- respond to the bright spots selected by the geophysicist. Next, a combinatorial optimization

  13. College of Natural Science and Mathematics Department of Geology and Geophysics

    E-Print Network [OSTI]

    Hartman, Chris

    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

  14. College of Natural Science and Mathematics Department of Geology and Geophysics

    E-Print Network [OSTI]

    Hartman, Chris

    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

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

    SciTech Connect (OSTI)

    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

    1995-12-31

    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.

  16. Geophysical Prospecting 37,753-770, 1989 SUGGESTIONS FOR A CONSISTENT

    E-Print Network [OSTI]

    Edinburgh, University of

    Geophysical Prospecting 37,753-770, 1989 SUGGESTIONS FOR A CONSISTENT TERMINOLOGY FOR SEISMIC for seismic anisotropy. Geophys- ical Prospecting 37,753-770. Seismic anisotropy is an unfamiliar concept reporting seismic anisotropy more readily comprehensible to the non- specialist. This not a manual

  17. Final Report DOE Contract No. DE-FG36-04G014294 ICEKAP 2004: A Collaborative Joint Geophysical Imaging Project at Krafla and IDDP P.E. Malin, S.A. Onacha, E. Shalev Division of Earth and Ocean Sciences Nicholas School of the Environment Duke University Durham, NC 27708

    SciTech Connect (OSTI)

    Malin, Peter E.; Shalev, Eylon; Onacha, Stepthen A.

    2006-12-15

    In this final report, we discuss both theoretical and applied research resulting from our DOE project, ICEKAP 2004: A Collaborative Joint Geophysical Imaging Project at Krafla and IDDP. The abstract below begins with a general discussion of the problem we addressed: the location and characterization of “blind” geothermal resources using microearthquake and magnetotelluric measurements. The abstract then describes the scientific results and their application to the Krafla geothermal area in Iceland. The text following this abstract presents the full discussion of this work, in the form of the PhD thesis of Stephen A. Onacha. The work presented here was awarded the “Best Geophysics Paper” at the 2005 Geothermal Resources Council meeting, Reno. This study presents the modeling of buried fault zones using microearthquake and electrical resistivity data based on the assumptions that fluid-filled fractures cause electrical and seismic anisotropy and polarization. In this study, joint imaging of electrical and seismic data is used to characterize the fracture porosity of the fracture zones. P-wave velocity models are generated from resistivity data and used in locating microearthquakes. Fracture porosity controls fluid circulation in the hydrothermal systems and the intersections of fracture zones close to the heat source form important upwelling zones for hydrothermal fluids. High fracture porosity sites occur along fault terminations, fault-intersection areas and fault traces. Hydrothermal fault zone imaging using resistivity and microearthquake data combines high-resolution multi-station seismic and electromagnetic data to locate rock fractures and the likely presence fluids in high temperature hydrothermal systems. The depths and locations of structural features and fracture porosity common in both the MT and MEQ data is incorporated into a joint imaging scheme to constrain resistivity, seismic velocities, and locations of fracture systems. The imaging of the fault zones is constrained by geological, drilling, and geothermal production data. The objective is to determine interpretation techniques for evaluating structural controls of fluid circulation in hydrothermal systems. The conclusions are: • directions of MT polarization and anisotropy and MEQ S-splitting correlate. Polarization and anisotropy are caused by fluid filled fractures at the base of the clay cap. •Microearthquakes occur mainly on the boundary of low resistivity within the fracture zone and high resistivity in the host rock. Resistivity is lowest within the core of the fracture zone and increases towards the margins of the fracture zone. The heat source and the clay cap for the hydrothermal have very low resistivity of less than 5?m. •Fracture porosity imaged by resistivity indicates that it varies between 45-5% with most between 10-20%, comparable to values from core samples in volcanic areas in Kenya and Iceland. For resistivity values above 60?m, the porosity reduces drastically and therefore this might be used as the upper limit for modeling fracture porosity from resistivity. When resistivity is lower than 5?m, the modeled fracture porosity increases drastically indicating that this is the low resistivity limit. This is because at very low resistivity in the heat source and the clay cap, the resistivity is dominated by ionic conduction rather than fracture porosity. •Microearthquakes occur mainly above the heat source which is defined by low resistivity at a depth of 3-4.5 km at the Krafla hydrothermal system and 4-7 km in the Longonot hydrothermal system. •Conversions of S to P waves occur for microearthquakes located above the heat source within the hydrothermal system. Shallow microearthquakes occur mainly in areas that show both MT and S-wave anisotropy. •S-wave splitting and MT anisotropy occurs at the base of the clay cap and therefore reflects the variations in fracture porosity on top of the hydrothermal system. •In the Krafla hydrothermal system in Iceland, both MT polarization and MEQ splitting directions align with

  18. Electric arc saw apparatus

    DOE Patents [OSTI]

    Deichelbohrer, P.R.

    1983-08-08

    A portable, hand-held electric arc saw apparatus comprising a small frame for supporting an electrically conducting rotary blade which serves as an electrode for generating an electric arc between the blade and a workpiece of opposite polarity. Electrically conducting means are provided on said frame for transmitting current to said blade. A pair of freely movable endless belts in the form of crawler treads are employed to facilitate movement of the apparatus relative to the workpiece.

  19. Electrical utilities relay settings

    SciTech Connect (OSTI)

    HACHE, J.M.

    1999-02-24

    This document contains the Hanford transmission and distribution system relay settings that are under the control of Electrical Utilities.

  20. National Electric Transmission Congestion Study Webinars | Department...

    Energy Savers [EERE]

    Services Electricity Policy Coordination and Implementation Transmission Planning National Electric Transmission Congestion Study National Electric Transmission...

  1. Emission Impacts of Electric Vehicles

    E-Print Network [OSTI]

    Wang, Quanlu; DeLuchi, Mark A.; Sperling, Daniel

    1990-01-01

    greenhouse effect, and electric vehicles," Proceedingso/9thInternational Electric Vehicles Symposium, 1988. 14. R. M.of 9th International Electric Vehicles Sympo- sium, 1988.

  2. Electric Vehicle Smart Charging Infrastructure

    E-Print Network [OSTI]

    Chung, Ching-Yen

    2014-01-01

    for Multiplexed Electric Vehicle Charging”, US20130154561A1,Chynoweth, ”Intelligent Electric Vehicle Charging System”,of RFID Mesh Network for Electric Vehicle Smart Charging

  3. The Case for Electric Vehicles

    E-Print Network [OSTI]

    Sperling, Daniel

    2001-01-01

    land Press, 1995 TESTING ELECTRIC VEHICLE DEMAND IN " HYBRIDThe Case for Electric Vehicles DanieI Sperlmg Reprint UCTCor The Case for Electric Vehicles Darnel Sperling Institute

  4. Renewable Electricity Futures Study

    E-Print Network [OSTI]

    Renewable Electricity Futures Study Executive Summary NREL is a national laboratory of the U for Sustainable Energy, LLC. Volume 2 PDF Volume 3 PDF Volume 1 PDF Volume 4 PDF #12;Renewable Electricity Futures. National Renewable Energy Laboratory Suggested Citations Renewable Electricity Futures Study (Entire Report

  5. Washington State Electric Vehicle

    E-Print Network [OSTI]

    California at Davis, University of

    Washington State Electric Vehicle Implementation Bryan Bazard Maintenance and Alternate Fuel Technology Manager #12;Executive Order 14-04 Requires the procurement of electric vehicles where and equipment with electricity or biofuel to the "extent practicable" by June 2015 1. The vehicle is due

  6. Electrical & Computer Engineering

    E-Print Network [OSTI]

    Electrical & Computer Engineering 2014-2015StudentHandbook For students entering the Masters of Science in Electrical & Computer Engineering: Pittsburgh, Silicon Valley, Rwanda, or Technology Enhanced, 2014 #12;This document is for the internal use of the Department of Electrical and Computer Engineering

  7. LABORATORY V ELECTRIC CIRCUITS

    E-Print Network [OSTI]

    Minnesota, University of

    Lab V -1 LABORATORY V ELECTRIC CIRCUITS Electrical devices are the cornerstones of our modern world understanding of them. In the previous laboratory, you studied the behavior of electric fields and their effect successfully completing this laboratory, you should be able to: · apply the concept of circuit to any

  8. ELECTRICAL & COMPUTER ENGINEERING

    E-Print Network [OSTI]

    ELECTRICAL & COMPUTER ENGINEERING SEMINAR "A Random Walk on Image Patches" by Prof. Francois Meyer Electrical, Computer, and Energy Engineering University of Colorado--Boulder Monday, April 2, 2012, 11:00 a a Ph.D. degree in electrical engineering from INRIA, France, in 1993. Meyer worked on the thermonuclear

  9. Electronics, Electrical Engineering

    E-Print Network [OSTI]

    SCHOOL OF Electronics, Electrical Engineering and Computer Science IS IN YOUR HANDS THE FUTURE #12;SCHOOL OF Electronics, Electrical Engineering and Computer Science2 CAREERS IN ELECTRONICS, ELECTRICAL ENGINEERING AND COMPUTER SCIENCE This is an exciting time to join the School of EEECS at Queen's University

  10. BRITISH COLUMBIA'S ELECTRICITY MARKET

    E-Print Network [OSTI]

    REFORMING BRITISH COLUMBIA'S ELECTRICITY MARKET: A WAY FORWARD DR. MARKJACCARD BRITISHCOLUMBIATASKFORCEON ELECTRICITYMARKETREFORM: FINALREPORT JANUARY1998 #12;BRITISH COLUMBIA TASK FORCE ON ELECTRICITY with the mandate to lead a Task Force to bring forward to government a package of electricity market reform

  11. Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA); Ramirez, Abelardo L. (Pleasanton, CA); Newmark, Robin L. (Pleasanton, CA); Udell, Kent (Berkeley, CA); Buetnner, Harley M. (Livermore, CA); Aines, Roger D. (Livermore, CA)

    1995-01-01

    A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process.

  12. Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater

    DOE Patents [OSTI]

    Daily, W.D.; Ramirez, A.L.; Newmark, R.L.; Udell, K.; Buetnner, H.M.; Aines, R.D.

    1995-09-12

    A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and electrical resistance heating to heat the contaminated underground area to increase the vapor pressure of the contaminants, thus speeding the process of contaminant removal and making the removal more complete. The injected steam passes through the more permeable sediments, distilling the organic contaminants, which are pumped to the surface. Large electrical currents are also applied to the contaminated area, which heat the impermeable subsurface layers that the steam has not penetrated. The condensed and vaporized contaminants are withdrawn by liquid pumping and vacuum extraction. The steam injection and electrical heating steps are repeated as necessary. Geophysical imaging methods can be used to map the boundary between the hot, dry, contamination-free underground zone and the cool, damp surrounding areas to help monitor the dynamic stripping process. 4 figs.

  13. Geophysical Research Abstracts Vol. 14, EGU2012-11103, 2012

    E-Print Network [OSTI]

    Sóbester, András

    - spheric balloon system. The `vehicle' for the latter was built on a 3D printer using a copolymer techniques, coupled with computer-controlled additive manufacturing (3D printing) and laser cutting methods to approximate space-filling curves that maximize sampling efficiency (a 3D `travelling salesman'-type calculus

  14. GGHAWKERHAWKER Geology and Geophysics at The University of Kansas

    E-Print Network [OSTI]

    in the geosciences. There are large numbers of excellent G-Hawks out there in the oil and gas industry, environmental to be more and more widely spread across campus at the same time that our offices and labs are compressed in the practical exploitation of oil shales, and employs unique techniques to understanding microbial and algal

  15. FTN4 OPTIMIZATION TECHNIQUES.

    E-Print Network [OSTI]

    Authors, Various

    2012-01-01

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

  16. Abstract-A novel imaging method for electrical impedance tomography is implemented. In this method, the magnetic flux

    E-Print Network [OSTI]

    Eyüboðlu, Murat

    - electrical impedance tomography, magnetic resonance imaging. I. INTRODUCTION Electrical impedance tomography conductivity images [11]. Both of these techniques can be named as magnetic resonance-electrical impedanceAbstract- A novel imaging method for electrical impedance tomography is implemented. In this method

  17. Hybrid opto-electric manipulation in microfluidics - opportunities and challenges

    SciTech Connect (OSTI)

    Kumar, Aloke [ORNL; Williams, Stuart J. [University of Louisville, Louisville; Chuang, Han-sheng [University of Pennsylvania; Green, Nicolas [University of Southampton, England; Wereley, Steven G. [Purdue University

    2011-01-01

    Hybrid opto-electric manipulation in microfluidics/nanofluidics refers to a set of technologies that employ both optical and electrical forces to achieve particle or fluid manipulation at the micro and nano scale. These technologies, which have emerged primarily over the last decade, have provided a revolutionary and fresh perspective at fundamental electrokinetic processes, as well as have engendered a novel applications and devices. Hybrid opto-electric techniques have been utilized to manipulate objects ranging in diversity from millimeter-sized droplets to nano-particles. This review article discusses the underlying principles, applications and future perspectives of various techniques that have emerged over the last decade under a unified umbrella.

  18. Instantaneous electric energy and electric power dissipation in dispersive media

    E-Print Network [OSTI]

    Fan, Shanhui

    Instantaneous electric energy and electric power dissipation in dispersive media Wonseok Shin,1 the instantaneous densities of electric energy and electric power dissipation in lossless and lossy dis- persive average of the electric energy density is [3] ue 1 4 d d jE0j2 . (1) The time average of the electric

  19. Contamination Control Techniques

    SciTech Connect (OSTI)

    EBY, J.L.

    2000-05-16

    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.

  20. Trade-off analysis for electric power planning in New England : a methodology for dealing with uncertain futures

    E-Print Network [OSTI]

    Connors, Stephen R.

    1989-01-01

    The use of a multi-attribute trade-off analysis technique as a vehicle to provide information to a diverse group of electric industry interests can play a beneficial role for developing long-range strategies for the electric ...

  1. On Optimizing Joint Inversion of Constrained Geophysical Datasets Anibal Sosa1 Leticia Velazquez1;2, Aaron Velasco3,

    E-Print Network [OSTI]

    Ward, Karen

    of Texas at El Paso, El Paso, Texas 79968-0514, USA 3Department of Geological Sciences, The University) algorithm to characterize 1D earth structure using geophysical datasets with two different optimization

  2. GEOPHYSICS, VOL. 67, NO. 4 (JULY-AUGUST 2002); P. 11041114, 11 FIGS., 1 TABLE. 10.1190/1.1500371

    E-Print Network [OSTI]

    Newman, Gregory A.

    Laboratories, Geophysical Technology Department, P.O. Box 5800, MS-0750, Albuquerque, New Mexico 87185-0750. E this mechanism, Klein et al. (1997) show that the high-conductivity contrast between shales and sands results

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

    E-Print Network [OSTI]

    Gasperikova, E.

    2010-01-01

    on the geophysical properties of coal undergoing CO 2 flood.coal layer, at the depth of 750 m, with the same lateral extent and propertiescoal zones (~300 tons to each zone). A literature search for rock properties

  4. Geophysical Journal International Geophys. J. Int. (2015) 200, 888907 doi: 10.1093/gji/ggu436

    E-Print Network [OSTI]

    2015-01-01

    Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava, Mlynska dolina F1, 842 48 and Engineering, KAUST, Thuwal 23955-6900, Saudi Arabia. E-mail: martin.galis@kaust.edu.sa 2Geophysics Section

  5. Geophysical Journal International Geophys. J. Int. (2015) 202, 787799 doi: 10.1093/gji/ggv183

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    2015-01-01

    in Bratislava, Mlynsk´a dolina F1, 84248 Bratislava, Slovakia 3Institute of Geophysics, Academy of Sciences & Engineering, Barcelona Supercomputing Centre, Carrer del Gran Capit´a 2-4, Barcelona, Spain Accepted 2015

  6. Geophysical Journal International Geophys. J. Int. (2014) 199, 18471860 doi: 10.1093/gji/ggu370

    E-Print Network [OSTI]

    Constable, Steve

    2014-01-01

    Geophysical Journal International Geophys. J. Int. (2014) 199, 1847­1860 doi: 10.1093/gji/ggu370-linear electromagnetics; Marine electromagnetics; Australia. 1 I N T RO D U C T I O N The marine controlled source

  7. Structure of the southern Keweenawan rift from COCORP surveys across the Midcontinent Geophysical Anomaly in northeastern Kansas

    E-Print Network [OSTI]

    Serpa, L.; Setzer, T.; Farmer, H.; Brown, L.; Oliver, J.; Kaufman, S.; Sharp, J.; Steeples, Don W.

    1984-06-01

    COCORP profiling across the midcontinent geophysical anomaly in northeastern Kansas reveals structural basins and other features of the Precambrian Keweenawan rift buried beneath the Phanerozoic cover. The 40-km-wide main basin is asymmetric, with a...

  8. Finding the creatures of habit; Clustering households based on their flexibility in using electricity

    E-Print Network [OSTI]

    Aickelin, Uwe

    , actionable groupings are found. Keywords Electricity load profiles, Clustering, Flexibility, Demand Side on the electricity network is the application of Demand Side Management (DSM) techniques to achieve changes electricity Ian Dent, Uwe Aickelin and Tom Rodden School of Computer Science University of Nottingham

  9. On the computation of the eigenproblems of hydrogen and helium in strong magnetic and electric

    E-Print Network [OSTI]

    On the computation of the eigenproblems of hydrogen and helium in strong magnetic and electric) and helium (two electron problem) in strong magnetic and electric fields. Key Words: Schr¨odinger equation these techniques can not longer be applied in cases where both, a magnetic and an electric field are present

  10. On the computation of the eigenproblems of hydrogen and helium in strong magnetic and electric

    E-Print Network [OSTI]

    On the computation of the eigenproblems of hydrogen and helium in strong magnetic and electric-dimensional Schr¨o- dinger equation for helium (two electron problem) in strong magnetic and electric fields. Key these techniques can no longer be applied in cases where both a magnetic and an electric field are present

  11. Infrared Inspection Techniques 

    E-Print Network [OSTI]

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

    1979-01-01

    Infrared scanning equipment has been used at Amoco's Texas City refinery since 1971 as an inspection tool. A camera scans the field of view and focuses the infrared radiation on a detector which converts the infrared signal to an electrical signal...

  12. Electrical system architecture

    DOE Patents [OSTI]

    Algrain, Marcelo C. (Peoria, IL); Johnson, Kris W. (Washington, IL); Akasam, Sivaprasad (Peoria, IL); Hoff, Brian D. (East Peoria, IL)

    2008-07-15

    An electrical system for a vehicle includes a first power source generating a first voltage level, the first power source being in electrical communication with a first bus. A second power source generates a second voltage level greater than the first voltage level, the second power source being in electrical communication with a second bus. A starter generator may be configured to provide power to at least one of the first bus and the second bus, and at least one additional power source may be configured to provide power to at least one of the first bus and the second bus. The electrical system also includes at least one power consumer in electrical communication with the first bus and at least one power consumer in electrical communication with the second bus.

  13. Thermoacoustic magnetohydrodynamic electrical generator

    SciTech Connect (OSTI)

    Wheatley, J.C.; Swift, G.W.; Migliori, A.

    1984-11-16

    A thermoacoustic magnetohydrodynamic electrical generator includes an intrinsically irreversible thermoacoustic heat engine coupled to a magnetohydrodynamic electrical generator. The heat engine includes an electrically conductive liquid metal as the working fluid and includes two heat exchange and thermoacoustic structure assemblies which drive the liquid in a push-pull arrangement to cause the liquid metal to oscillate at a resonant acoustic frequency on the order of 1000 Hz. The engine is positioned in the field of a magnet and is oriented such that the liquid metal oscillates in a direction orthogonal to the field of the magnet, whereby an alternating electrical potential is generated in the liquid metal. Low-loss, low-inductance electrical conductors electrically connected to opposite sides of the liquid metal conduct an output signal to a transformer adapted to convert the low-voltage, high-current output signal to a more usable higher voltage, lower current signal.

  14. Thermoacoustic magnetohydrodynamic electrical generator

    DOE Patents [OSTI]

    Wheatley, John C. (Los Alamos, NM); Swift, Gregory W. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

    1986-01-01

    A thermoacoustic magnetohydrodynamic electrical generator includes an intrinsically irreversible thermoacoustic heat engine coupled to a magnetohydrodynamic electrical generator. The heat engine includes an electrically conductive liquid metal as the working fluid and includes two heat exchange and thermoacoustic structure assemblies which drive the liquid in a push-pull arrangement to cause the liquid metal to oscillate at a resonant acoustic frequency on the order of 1,000 Hz. The engine is positioned in the field of a magnet and is oriented such that the liquid metal oscillates in a direction orthogonal to the field of the magnet, whereby an alternating electrical potential is generated in the liquid metal. Low-loss, low-inductance electrical conductors electrically connected to opposite sides of the liquid metal conduct an output signal to a transformer adapted to convert the low-voltage, high-current output signal to a more usable higher voltage, lower current signal.

  15. Electric power monthly

    SciTech Connect (OSTI)

    1995-08-01

    The Energy Information Administration (EIA) prepares the Electric Power Monthly (EPM) for a wide audience including Congress, Federal and State agencies, the electric utility industry, and the general public. This publication provides monthly statistics for net generation, fossil fuel consumption and stocks, quantity and quality of fossil fuels, cost of fossil fuels, electricity sales, revenue, and average revenue per kilowatthour of electricity sold. Data on net generation, fuel consumption, fuel stocks, quantity and cost of fossil fuels are also displayed for the North American Electric Reliability Council (NERC) regions. The EIA publishes statistics in the EPM on net generation by energy source, consumption, stocks, quantity, quality, and cost of fossil fuels; and capability of new generating units by company and plant. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead.

  16. Electric Power Monthly

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Electric Power Monthly Data for June 2015 | Release Date: August 26, 2015 | Next Release: September 24, 2015 | full report | Re-release date: August 28, 2015 | Revision Previous...

  17. Electric Utility Industry Update

    Broader source: Energy.gov [DOE]

    Presentation—given at the April 2012 Federal Utility Partnership Working Group (FUPWG) meeting—covers significant electric industry trends and industry priorities with federal customers.

  18. Electricity Monthly Update

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

    Electric Reliability Council of Texas (ERCOT), and two locations in the California ISO (CAISO). Also shown are wholesale prices at trading hubs in Louisiana (into Entergy),...

  19. Electricity Monthly Update

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

    compares coal consumption in November 2013 and November 2014 by region and shows that coal consumption from electricity generation has decreased in all regions, except Florida,...

  20. Electricity Monthly Update

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

    fuel costs account for the lion's share. Therefore, we present below, electricity generation output by fuel type and generator type. Since the generatorfuel mix of utilities...

  1. Electricity Monthly Update

    Gasoline and Diesel Fuel Update (EIA)

    Electricity Monthly Update Explained Highlights The Highlights page features in the center a short article about a major event or an informative topic. The left column contains...

  2. Electricity Monthly Update

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Wholesale Markets: February 2014 The United States has many regional wholesale electricity markets. Below we look at monthly and annual ranges of on-peak, daily wholesale...

  3. Electricity Monthly Update

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

    last winter. Principal Contributor: Peter Wong (Peter.Wong@eia.gov) End Use: December 2014 Retail ratesprices and consumption In this section, we look at what electricity...

  4. Electricity Monthly Update

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

    Percentage Btu Region map map showing electricity regions The chart above compares coal consumption in February 2014 and February 2015 by region and shows that coal consumption...

  5. Electricity Monthly Update

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

    Percentage Btu Region map map showing electricity regions The chart above compares coal consumption in March 2014 and March 2015 by region and shows that coal consumption for...

  6. Energy 101: Electric Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE)

    This edition of Energy 101 highlights the benefits of electric vehicles, including improved fuel efficiency, reduced emissions, and lower maintenance costs.

  7. Electric power annual 1992

    SciTech Connect (OSTI)

    Not Available

    1994-01-06

    The Electric Power Annual presents a summary of electric utility statistics at national, regional and State levels. The objective of the publication is to provide industry decisionmakers, government policymakers, analysts and the general public with historical data that may be used in understanding US electricity markets. The Electric Power Annual is prepared by the Survey Management Division; Office of Coal, Nuclear, Electric and Alternate Fuels; Energy Information Administration (EIA); US Department of Energy. ``The US Electric Power Industry at a Glance`` section presents a profile of the electric power industry ownership and performance, and a review of key statistics for the year. Subsequent sections present data on generating capability, including proposed capability additions; net generation; fossil-fuel statistics; retail sales; revenue; financial statistics; environmental statistics; electric power transactions; demand-side management; and nonutility power producers. In addition, the appendices provide supplemental data on major disturbances and unusual occurrences in US electricity power systems. Each section contains related text and tables and refers the reader to the appropriate publication that contains more detailed data on the subject matter. Monetary values in this publication are expressed in nominal terms.

  8. Renewable Electricity Generation

    SciTech Connect (OSTI)

    2012-09-01

    This document highlights DOE's Office of Energy Efficiency and Renewable Energy's advancements in renewable electricity generation technologies including solar, water, wind, and geothermal.

  9. Perforation patterned electrical interconnects

    DOE Patents [OSTI]

    Frey, Jonathan

    2014-01-28

    This disclosure describes systems and methods for increasing the usable surface area of electrical contacts within a device, such as a thin film solid state device, through the implementation of electrically conductive interconnects. Embodiments described herein include the use of a plurality of electrically conductive interconnects that penetrate through a top contact layer, through one or more multiple layers, and into a bottom contact layer. The plurality of conductive interconnects may form horizontal and vertical cross-sectional patterns. The use of lasers to form the plurality of electrically conductive interconnects from reflowed layer material further aids in the manufacturing process of a device.

  10. 2012 National Electricity Forum

    Energy Savers [EERE]

    U.S. Department of Energy 2012 National Electric Transmission Congestion Study Eastern Regional Workshops December 6, 2011 - Philadelphia, Pennsylvania Hilton Philadelphia Airport...

  11. Electrically conductive cellulose composite

    DOE Patents [OSTI]

    Evans, Barbara R.; O'Neill, Hugh M.; Woodward, Jonathan

    2010-05-04

    An electrically conductive cellulose composite includes a cellulose matrix and an electrically conductive carbonaceous material incorporated into the cellulose matrix. The electrical conductivity of the cellulose composite is at least 10 .mu.S/cm at 25.degree. C. The composite can be made by incorporating the electrically conductive carbonaceous material into a culture medium with a cellulose-producing organism, such as Gluconoacetobacter hansenii. The composites can be used to form electrodes, such as for use in membrane electrode assemblies for fuel cells.

  12. High-frequency electric field measurement using a toroidal antenna

    SciTech Connect (OSTI)

    Lee, K.H.

    1997-01-01

    In this paper the author describes an innovative method of measuring high-frequency electric fields using a toroid. For typical geophysical applications the new sensor will detect electric fields for a wide range of spectrum starting from 1.0 MHz. This window, in particular the lower frequency range between 1.0 to 100 MHz, has not been used for existing electromagnetic or radar systems to detect small objects in the upper few meters of the ground. Ground penetrating radar (GPR) can be used successfully in this depth range if the ground is resistive but most soils are, in fact, conductive (0.01 to 1.0 S/m) rendering GPR inefficient. Other factors controlling the resolution of GPR system for small objects is the spatial averaging inherent in the electric dipole antenna and the scattering caused by soil inhomogeneities of dimensions comparable to the wavelength (and antenna size). For maximum resolution it is desirable to use the highest frequencies but the scattering is large and target identification is poor. Time-varying magnetic fields induce an emf (voltage) in a toroid. The electric field at the center of the toroid is shown to be linearly related to this induced voltage. By measuring the voltage across a toroid one can easily and accurately determine the electric field. The new sensor will greatly simplify the cumbersome procedure involved with GPR measurements with its center frequency less than 100 MHz. The overall size of the toroidal sensor can be as small as a few inches. It is this size advantage that will not only allow easy fabrication and deployment of multi-component devices either on the surface or in a borehole, but it will render greatly improved resolution over conventional systems.

  13. 35.1 Introduction Flows.involving.phase.change.are.ubiquitous.in.geophysical.and.

    E-Print Network [OSTI]

    Huppert, Herbert

    467 35.1 Introduction Flows.involving.phase.change.are.ubiquitous.in.geophysical.and. industrial.and.atmosphere.but.also.some.that.occur.in.water- saturated.soils,.in.magmatic.systems,.and.in.industrial.processes. 35.2 Principles Changes.of.phase,.from.and.associated.buoyancy.forces..The.importance.of.phase. change.to.a.given.flow.can.be.assessed.by.estimating.certain.key. dimensionless.parameters. 35

  14. Electricity market module: Electricity capacity planning submodule

    SciTech Connect (OSTI)

    NONE

    1996-06-01

    The purpose of this report is to describe modifications to the Electricity Capacity Planning Submodule (ECP) for the Annual Energy Outlook 1996. It describes revisions to enhance the representation of planned maintenance, incorporate technological improvements in operating efficiencies, revise the algorithm for determining international firm power imports, and include risk premiums for new plant construction.

  15. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. This presentation was presented in a Wind Powering America webinar on August 15, 2012 and is now available through the Wind Powering America website.

  16. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M.

    2012-10-01

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It is being presented at the Utility Variable-Generation Integration Group Fall Technical Workshop on October 24, 2012.

  17. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Hand, M.; Mai, T.

    2012-08-01

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in an Union of Concerned Scientists webinar on June 12, 2012.

  18. Renewable Electricity Futures (Presentation)

    SciTech Connect (OSTI)

    Mai, T.

    2012-08-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a Power Systems Engineering Research Center webinar on September 4, 2012.

  19. Electrical Demand Management 

    E-Print Network [OSTI]

    Fetters, J. L.; Teets, S. J.

    1983-01-01

    The Demand Management Plan set forth in this paper has proven to be a viable action to reduce a 3 million per year electric bill at the Columbus Works location of Western Electric. Measures are outlined which have reduced the peak demand 5% below...

  20. Electrical Demand Control 

    E-Print Network [OSTI]

    Eppelheimer, D. M.

    1984-01-01

    Almost every building owner or manager is interested in controlling electrical costs. Since the HVAC system is a large user of electricity, this article will discuss what can be done in the HVAC system to influence parts of the utility bill....