National Library of Energy BETA

Sample records for image logs insar

  1. Open-source software for geodetic imaging: ROI_PAC for InSAR and pixel tracking

    E-Print Network [OSTI]

    Pritchard, Matt

    1 Open-source software for geodetic imaging: ROI_PAC for InSAR and pixel tracking Authors: Matthew. Acknowledgements Section I. Introduction Section II. Getting started: Data & software Raw data format Available software for InSAR and pixel tracking Appendix 0: Some basic LINUX commands Appendix 1: Getting

  2. COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO...

    Open Energy Info (EERE)

    COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL FIELD, CA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings:...

  3. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01

    Patterns in a Digital Image Database. Information RetrievalCultural Heritage Image Database A thesis submitted inCultural Heritage Image Database by Heather Ann Lowe Master

  4. Integrating User Feedback Log into Relevance Feedback by Coupled SVM for Content-Based Image Retrieval

    E-Print Network [OSTI]

    Lyu, Michael R.

    , the user feedback log is one of the most important resources to bridge the seman- tic gap problem in image to re- peat many rounds of feedback in order to achieve satisfac- tory results. Hence, the learning task

  5. Surface deformation analysis over a hydrocarbon reservoir using InSAR with ALOS-PALSAR data

    E-Print Network [OSTI]

    ?ahin, Sedar Cihan

    2013-01-01

    InSAR has been developed to estimate the temporal change on the surface of Earth by combining multiple SAR images acquired over the same area at different times. In the last two decades, in addition to conventional InSAR, ...

  6. Detecting and monitoring UCG subsidence with InSAR

    SciTech Connect (OSTI)

    Mellors, R J; Foxall, W; Yang, X

    2012-03-23

    The use of interferometric synthetic aperture radar (InSAR) to measure surface subsidence caused by Underground Coal Gasification (UCG) is tested. InSAR is a remote sensing technique that uses Synthetic Aperture Radar images to make spatial images of surface deformation and may be deployed from satellite or an airplane. With current commercial satellite data, the technique works best in areas with little vegetation or farming activity. UCG subsidence is generally caused by roof collapse, which adversely affects UCG operations due to gas loss and is therefore important to monitor. Previous studies have demonstrated the usefulness of InSAR in measuring surface subsidence related to coal mining and surface deformation caused by a coal mining roof collapse in Crandall Canyon, Utah is imaged as a proof-of-concept. InSAR data is collected and processed over three known UCG operations including two pilot plants (Majuba, South Africa and Wulanchabu, China) and an operational plant (Angren, Uzbekistan). A clear f eature showing approximately 7 cm of subsidence is observed in the UCG field in Angren. Subsidence is not observed in the other two areas, which produce from deeper coal seams and processed a smaller volume. The results show that in some cases, InSAR is a useful tool to image UCG related subsidence. Data from newer satellites and improved algorithms will improve effectiveness.

  7. Monitoring EGS Stimulation and Reservoir Dynamics with InSAR...

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

    EGS Stimulation and Reservoir Dynamics with InSAR and MEQ Monitoring EGS Stimulation and Reservoir Dynamics with InSAR and MEQ Monitoring EGS Stimulation and Reservoir Dynamics...

  8. Change Log

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

    Log NERSC-8 Trinity Benchmarks Change Log 09032013 Correction applied to MiniDFT web-page (to remove inconsistency with MiniDFT README). Capability Improvement...

  9. Object-Based Image Analysis of Downed Logs in Disturbed Forested Landscapes Using Lidar

    E-Print Network [OSTI]

    Kelly, Maggi

    2011-01-01

    spectral and non-spectral ancillary information. Photogramm.OBIA software that supports ancillary vector data and image

  10. Change Log

    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 WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1,CenterJohnCeremony TheChallenges andChange Log

  11. Change Log

    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 WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1,CenterJohnCeremony TheChallenges andChange LogChange

  12. Image Logs | 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:QAsource History View NewTexas: Energy Resources JumpNewTexas:HydrothermallyIFBIdea OneIllumitex Jump to:11)

  13. Some thoughts on the use of InSAR data to constrain models of surface deformation: Noise structure and data

    E-Print Network [OSTI]

    Simons, Mark

    Some thoughts on the use of InSAR data to constrain models of surface deformation: Noise structure models of surface deformation: Noise structure and data downsampling, Geochem. Geophys. Geosyst., 6, Q of data points. Here we estimate the actual covariance structure of noise in InSAR data. We compare

  14. M01506020006 log check dam

    E-Print Network [OSTI]

    XY! ¬« 35-0027 M01506020006 log check dam M01506020007 log check dam M01506020001 log check dam M location Berm Channel/swale Check dam Sediment trap/basin Gabion Seed and mulch Cap Established vegetation

  15. October 2006 LOG MANAGEMENT: USING

    E-Print Network [OSTI]

    to Computer Security Log Management NIST's Information Technology Laboratory recently issued SpecialOctober 2006 LOG MANAGEMENT: USING COMPUTER AND NETWORK RECORDS TO IMPROVE INFORMATION SECURITY LOG MANAGEMENT: USING COMPUTER AND NETWORK RECORDS TO IMPROVE INFORMATION SECURITY Shirley Radack, Editor

  16. G8 Illegal Logging Dialogue G8 Illegal Logging Dialogue

    E-Print Network [OSTI]

    G8 Illegal Logging Dialogue G8 Illegal Logging Dialogue A global legislator partnership for legal International http://www.illegal-logging.info/item_single.php?item=presentation&item_id=133&approach_id=8 #12;G8 Illegal Logging Dialogue Presentation purpose · role of GLOBE International · aim and objectives of the G8

  17. NMR logging apparatus

    DOE Patents [OSTI]

    Walsh, David O; Turner, Peter

    2014-05-27

    Technologies including NMR logging apparatus and methods are disclosed. Example NMR logging apparatus may include surface instrumentation and one or more downhole probes configured to fit within an earth borehole. The surface instrumentation may comprise a power amplifier, which may be coupled to the downhole probes via one or more transmission lines, and a controller configured to cause the power amplifier to generate a NMR activating pulse or sequence of pulses. Impedance matching means may be configured to match an output impedance of the power amplifier through a transmission line to a load impedance of a downhole probe. Methods may include deploying the various elements of disclosed NMR logging apparatus and using the apparatus to perform NMR measurements.

  18. 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...

  19. Geothermal Well Logging: Geological Wireline Logs and Fracture Imaging |

    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:QAsource History View New PagesSustainable UrbanKentucky:Bore TechnologiesAssessment In HawaiiSaltonOpen Energy

  20. Logging in to Franklin

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting Hotel -LoggingLogging

  1. Railway Subsidence Monitoring by High Resolution INSAR Time Series Analysis in Tianjin

    E-Print Network [OSTI]

    Perissin, Daniele

    Railway Subsidence Monitoring by High Resolution INSAR Time Series Analysis in Tianjin Qingli Luo1 and the development of urban are seriously affected by the subsidence of them. Permanent Scatterers (PS) technology was developed as a powerful tool for subsidence monitoring. High resolution of 1m data can be provided by Terra

  2. ILLEGAL LOGGING IN INDONESIA

    E-Print Network [OSTI]

    to feed the country's enormous timber processing mills. Indonesia's paper and pulp industry has a record products. The U.S. Bureau of Labor Statistics reports that the logging, wood, paper and cabinetry industries have lost 242,000 jobs, or roughly 23 percent of its workforce, since 2006.viii Conservative

  3. Internet Data logging and Display 

    E-Print Network [OSTI]

    Sweeney, J., Jr.; Culp, C.; Haberl, J. S.

    2001-01-01

    The current energy savings technology relies on conventional data logging systems, in which two major barriers exist. Formost is the fact that retrieving the energy data is not convenient, and the cost of the data logging ...

  4. Logging in to Edison

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting Hotel -Logging

  5. Coiled-tubing logging system

    SciTech Connect (OSTI)

    Howell, E.P.; Smith, L.J.; Blount, C.G.

    1988-03-01

    Techniques have been developed to use coiled tubing containing a seven-conductor wireline to facilitate logging operations. Equipment has been designed to permit the connection of conventional logging tools to the tubing and the recording of logs. Operating techniques have been developed and applied under various wellbore conditions. The system allows traditional log measurements in a well while wellbore conditions are controlled. Advantages of the system include reduced wellbore pressure during peroration to maximize perforation performance; lubrication during pulling or pushing a logging tool through a borehole so that a more uniform velocity can be maintained with a logging sonde; continued circulation and thus borehole stability during logging; temperature reduction for improved reliability of logging sonde electronics in hot holes; and more stable positioning of perforation equipment. The ability of coiled tubing to push tools down highly deviated or horizontal wellbores makes logging or perforating feasible in these wells. Expenses can often be reduced with coiled-tubing logging because a rig is unnecessary during many operations.

  6. Coiled-tubing logging system

    SciTech Connect (OSTI)

    Howell, E.P.; Smith, L.J.; Blount, C.G.

    1986-01-01

    Techniques have been developed which use coiled tubing containing a seven-conductor wireline to facilitate logging operations. Equipment has been designed which permits the connection of conventional logging tools to the tubing and the recording of logs. Also, operating techniques have been developed and applied under various wellbore conditions. The system allows traditional log measurements in a well while controlling wellbore conditions. Advantages of the system include: reduced wellbore pressure during perforation to minimize formation damage: lubrication while pulling or pushing a logging tool through a borehole so that a more uniform velocity can be maintained with a logging sonde; continued circulation and thus borehole stability while logging; temperature reduction for improved reliability of logging sonde electronics in hot holes; and more stable positioning of perforation equipment. The ability of coiled tubing to push tools down highly deviated, or even horizontal wellbores, makes logging or perforating feasible in these wells. Expenses can often be reduced with coiled-tubing logging, since a rig is unnecessary during many operations.

  7. April 27, 2010 Well Logging I

    E-Print Network [OSTI]

    Ito, Garrett

    completing drilling) Logging While Drilling (LWD) Both use similar tools and each has its advantages seismic profile (VSP) · Logging While Drilling (LWD) Standard Logs #12;4/26/2010 3 · Nuclear Logs (VSP) · Logging While Drilling (LWD) · Nuclear Logs · Sonic - Monopole - Dipole · Electrical

  8. Acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1988-01-01

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth3 s magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation . The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be preformed in open boreholes and in cased well bores.

  9. LOG HAZARD REGRESSION Huiying Sun

    E-Print Network [OSTI]

    Heckman, Nancy E.

    LOG HAZARD REGRESSION by Huiying Sun Ph.D, Harbin Institute of Technology, Harbin, CHINA, 1991 .................................................................... .................................................................... .................................................................... .................................................................... THE UNIVERSITY OF BRITISH COLUMBIA September, 1999 c flHuiying Sun, 1999 #12; Abstract We propose using

  10. Health Calculators & Logs - HPMC Occupational Health Services

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

    Calculators & Logs Health Education & Wellness Downloads & Patient Materials Health & Productivity Health Calculators & Logs Body Mass Index Health Coaching Health Fairs and...

  11. Interseismic deformation and creep along the central section of the North Anatolian Fault (Turkey): InSAR observations

    E-Print Network [OSTI]

    Fialko, Yuri

    Interseismic deformation and creep along the central section of the North Anatolian Fault (Turkey the central section of the North Anatolian Fault (NAF) in Turkey using interferometric synthetic aperture along the central section of the North Anatolian Fault (Turkey): InSAR observations and implications

  12. Interseismic deformation and creep along the central section of the North Anatolian Fault (Turkey): InSAR observations

    E-Print Network [OSTI]

    Sandwell, David T.

    Interseismic deformation and creep along the central section of the North Anatolian Fault (Turkey Anatolian Fault (NAF) in Turkey using interferometric synthetic aperture radar data from the Advanced Land Anatolian Fault (Turkey): InSAR observations and implications for rate-and-state friction properties, J

  13. Mechanical modeling and InSAR measurements of Mount Sedom uplift, Dead Sea basin: Implications for effective

    E-Print Network [OSTI]

    Lyakhovsky, Vladimir

    Mechanical modeling and InSAR measurements of Mount Sedom uplift, Dead Sea basin: Implications of predicted profiles: topography, uplift rate, and shear strain. The present topography of Mount Sedom stage and at the Plio-Pleistocene pre-emergent stage of the Sedom diapir, respectively. The uplift

  14. briefing paper Controlling Illegal Logging

    E-Print Network [OSTI]

    -producing countries, the inclusion of provisions on illegal logging in free trade agreements (in the US­Peru Free Trade Agreement for example), and public procurement policies for timber.4 Within Europe, discussion has to control imports of illegal timber. The EU's Action Plan on Forest Law Enforcement, Governance and Trade

  15. Chemical logging of geothermal wells

    DOE Patents [OSTI]

    Allen, Charles A. (Idaho Falls, ID); McAtee, Richard E. (Idaho Falls, ID)

    1981-01-01

    The presence of geothermal aquifers can be detected while drilling in geothermal formations by maintaining a chemical log of the ratio of the concentrations of calcium to carbonate and bicarbonate ions in the return drilling fluid. A continuous increase in the ratio of the concentrations of calcium to carbonate and bicarbonate ions is indicative of the existence of a warm or hot geothermal aquifer at some increased depth.

  16. Energy Citations Database (ECD) - Alerts Log On

    Office of Scientific and Technical Information (OSTI)

    Log On You must Log On to use the ECD Alerts. Alerts provide users with e-mail notification of updates to the ECD in specific areas of interest. If you wish to receive an Alert and...

  17. Bivariate Log Birnbaum-Saunders Distribution

    E-Print Network [OSTI]

    Kundu, Debasis

    Bivariate Log Birnbaum-Saunders Distribution Debasis Kundu1 Abstract Univariate Birnbaum-Saunders distribution has received a considerable amount of attention in recent years. Rieck and Nedelman (1991, 'A log-linear model for the Birnbaum-Saunders distribution', Technometrics, 51-60) introduced a log Birnbaum- Saunders

  18. Log interpretation of shaly sandstones 

    E-Print Network [OSTI]

    Baker, Joel Foster

    1987-01-01

    and Gas, Arco Oil and Gas, and Sun Oil Companies for their contributions of cores, logs, and other valuable data. Their contributions were an immense help in formulating and supporting the ideas developed in my study. I also wish to express gratitute... from the Reese Oil and Gas Intracoastal Land ?2 well in the Bayou Cholpe field, West Baton Parish, Louisiana, and from the Arco Hankamer 630-1 well in Newton County, Texas. The cores were described and sampled for petrographic analysis. To determine...

  19. Mud Logging | 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 APPENDIXsourceII Jump to: navigation, searchsource HistoryCharleston,Peak UtilityLogging Jump to:

  20. Chemical Logging | 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 ECoopButte County,Camilla,Thermal GradientChateau Tebeau LLC Jump to:ConsortiumLogging

  1. Leak checker data logging system

    DOE Patents [OSTI]

    Gannon, J.C.; Payne, J.J.

    1996-09-03

    A portable, high speed, computer-based data logging system for field testing systems or components located some distance apart employs a plurality of spaced mass spectrometers and is particularly adapted for monitoring the vacuum integrity of a long string of a superconducting magnets such as used in high energy particle accelerators. The system provides precise tracking of a gas such as helium through the magnet string when the helium is released into the vacuum by monitoring the spaced mass spectrometers allowing for control, display and storage of various parameters involved with leak detection and localization. A system user can observe the flow of helium through the magnet string on a real-time basis hour the exact moment of opening of the helium input valve. Graph reading can be normalized to compensate for magnet sections that deplete vacuum faster than other sections between testing to permit repetitive testing of vacuum integrity in reduced time. 18 figs.

  2. Leak checker data logging system

    DOE Patents [OSTI]

    Gannon, Jeffrey C. (Arlington, TX); Payne, John J. (Waterman, IL)

    1996-01-01

    A portable, high speed, computer-based data logging system for field testing systems or components located some distance apart employs a plurality of spaced mass spectrometers and is particularly adapted for monitoring the vacuum integrity of a long string of a superconducting magnets such as used in high energy particle accelerators. The system provides precise tracking of a gas such as helium through the magnet string when the helium is released into the vacuum by monitoring the spaced mass spectrometers allowing for control, display and storage of various parameters involved with leak detection and localization. A system user can observe the flow of helium through the magnet string on a real-time basis hour the exact moment of opening of the helium input valve. Graph reading can be normalized to compensate for magnet sections that deplete vacuum faster than other sections between testing to permit repetitive testing of vacuum integrity in reduced time.

  3. Log-Sobolev inequalities for subelliptic operators

    E-Print Network [OSTI]

    Fabrice Baudoin

    2012-02-07

    Log-Sobolev inequalities for subelliptic operators. Fabrice Baudoin. Purdue University. Georgia Tech Probability Seminar. Based on a joint work with M.

  4. Shippers in Indonesia fight decree on illegal logging Shippers in Indonesia fight decree on illegal logging

    E-Print Network [OSTI]

    Shippers in Indonesia fight decree on illegal logging Shippers in Indonesia fight decree on illegal Organization (ITTO), shippers in Indonesia are threatening to stop transporting logs if the government insists harvesting affects 700,000-850,000 hectares of forest per year in Indonesia, but widespread illegal logging

  5. Illegal timber logging in Vietnam: Who profits from forest privatization connected with a logging ban?

    E-Print Network [OSTI]

    1 Illegal timber logging in Vietnam: Who profits from forest privatization connected with a logging the distribution of income from illegal timber logging in northern Vietnam. The Vietnamese government implemented actors' control over markets and power derived from state positions. I. Introduction Vietnam's forest

  6. Biomass from Logging Residue and Mill Residue

    E-Print Network [OSTI]

    Biomass from Logging Residue and Mill Residue in East Texas, 2008 by Curtis L. VanderSchaaf, Forest Resource Analyst October 2009 #12;N Introduction The abundance of woody biomass from East Texas forests. This report represents the most current data on the availability of woody biomass in the form of logging

  7. Coal-log pipeline system development

    SciTech Connect (OSTI)

    Liu, H.

    1991-12-01

    Project tasks include: (1) Perform the necessary testing and development to demonstrate that the amount of binder in coal logs can be reduced to 8% or lower to produce logs with adequate strength to eliminate breakage during pipeline transportation, under conditions experienced in long distance pipeline systems. Prior to conducting any testing and demonstration, grantee shall perform an information search and make full determination of all previous attempts to extrude or briquette coal, upon which the testing and demonstration shall be based. (2) Perform the necessary development to demonstrate a small model of the most promising injection system for coal-logs, and tests the logs produced. (3) Conduct economic analysis of coal-log pipeline, based upon the work to date. Refine and complete the economic model. (VC)

  8. Formation mechanical properties and the sonic log

    SciTech Connect (OSTI)

    Elphick, R.Y.

    1988-11-01

    A program is presented that calculates the mechanical properties of reservoir rocks from sonic logs. The program was written in Microsoft BASIC and the source code for MS-DOS, Apple Macintosh, and Amiga personal computers is given.

  9. JourneyLog 64 5 Vehicle tracking

    E-Print Network [OSTI]

    Haddadi, Hamed

    JourneyLog 64 5 Vehicle tracking blinkx 8 Five years on Tomas Pfister 11 Graduate story Raspberry Pi 12 Exciting and engaging children to learn about computing Ring news 2 Note from the Editor

  10. Energy Citations Database (ECD) - Alerts Log On

    Office of Scientific and Technical Information (OSTI)

    ECD Alerts Log On Alerts provide users with e-mail notification of updates to the ECD in specific areas of interest. If you wish to receive an Alert and are not registered, please...

  11. Logging-while-coring method and apparatus

    DOE Patents [OSTI]

    Goldberg, David S.; Myers, Gregory J.

    2007-01-30

    A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.

  12. Logging-while-coring method and apparatus

    DOE Patents [OSTI]

    Goldberg, David S. (New York, NY); Myers, Gregory J. (Cornwall, NY)

    2007-11-13

    A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.

  13. Logs Wood Chips Straw Corn Switchgrass

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

    Clean energy can come from the sun. The energy in wind can make electricity. Bioenergy comes from plants we can turn into fuel. Logs Wood Chips Straw Corn Switchgrass We can use...

  14. Energy Efficiency in Log Homes | Department of Energy

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

    Energy Efficiency in Log Homes Energy Efficiency in Log Homes April 13, 2012 - 11:29am Addthis Consider energy efficiency when designing or purchasing a log home. | Photo courtesy...

  15. Density Log At Valles Caldera - Redondo Geothermal Area (Wilt...

    Open Energy Info (EERE)

    Density Log At Valles Caldera - Redondo Geothermal Area (Wilt & Haar, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Density Log At Valles...

  16. Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell...

    Open Energy Info (EERE)

    Well Log Data At Valles Caldera - Redondo Geothermal Area (Shevenell, Et Al., 1988) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data...

  17. Green Energy Resources Inc formerly New York International Log...

    Open Energy Info (EERE)

    Green Energy Resources Inc formerly New York International Log Lumber Company Jump to: navigation, search Name: Green Energy Resources Inc (formerly New York International Log &...

  18. Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann...

    Open Energy Info (EERE)

    Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Blue...

  19. Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia

    E-Print Network [OSTI]

    the creation of special body for licensing export operations · changes in the Federal Crime Code #12;RUSSIACombating Illegal LoggingCombating Illegal Logging in Russia:in Russia: Case study ofCase study of PrimorskyPrimorsky RegionRegion AlexeyAlexey MorozovMorozov Greenpeace RussiaGreenpeace Russia http://www

  20. Combating Illegal LoggingCombating Illegal Logging in Russia:in Russia

    E-Print Network [OSTI]

    of special body for licensing export operations · changes in the Federal Crime Code #12;RUSSIA ...A barbarianCombating Illegal LoggingCombating Illegal Logging in Russia:in Russia: Case study ofCase study of PrimorskyPrimorsky RegionRegion AlexeyAlexey MorozovMorozov Greenpeace RussiaGreenpeace Russia #12;Primorsky

  1. The Impact of the Russian Log Export Tariff on the Global Market for Logs and Lumber

    E-Print Network [OSTI]

    The Impact of the Russian Log Export Tariff on the Global Market for Logs and Lumber CINTRAFOR News's Notes ....2 CINTRAFOR celebrates 25th aniversary Winter 2009 Russia contains the largest area of natural in Russia, estimated at 808,790,000 hectares, represents 20.5% of total global forest area and almost half

  2. Permeability extraction: A sonic log inversion

    SciTech Connect (OSTI)

    Akbar, N.; Kim, J.J. [Saudi Aramco, Dhahran (Saudi Arabia)

    1994-12-31

    In this paper the authors provide the missing important link between permeability and acoustic velocities by generating a permeability-dependent synthetic sonic log in a carbonate reservoir. The computations are based on Akbar`s theory that relates wave velocity to frequency, rock properties (e.g., lithology, permeability, and porosity), and fluid saturation and properties (viscosity, density, and compressibility). An inverted analytical expression of the theory is used to extract permeability from sonic velocity. The synthetic sonic and the computed permeability are compared with the observed sonic log and with plug permeability, respectively. The results demonstrate, as predicted by theory, that permeability can be related directly to acoustic velocities.

  3. Logging of subterranean wells using coiled tubing

    SciTech Connect (OSTI)

    Pilla, J.

    1991-01-15

    This patent describes an apparatus for production logging of a well utilizing artificial lift in a wellbore. It comprises: coiled tubing extending into the wellbore having wireline electrical cable passing through a central bore thereof and having a remote end within the wellbore which end is connected to gas injector means. The wireline cable passing through the gas injector means to a flexible electrically conductive support spacer having an end portion remote from the gas injector means and logging means connected to the end portion of the support spacer.

  4. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01

    Role of user feedback Library trends 48, no. 2: 438-452.Visual Model Matching. Library Trends 48, no. 2 (Fall): 303.library study that found over a quarter of users employed Boolean operators. In contrast, the trend

  5. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01

    need as well as the information ecosystem may be driving howbest understand the information ecosystem of our users, we

  6. Search Log Analysis of the ARTstor Cultural Heritage Image Database

    E-Print Network [OSTI]

    Lowe, Heather Ann

    2013-01-01

    When compiled into a thesaurus, these terms can be arrangedSubject Headings (LCSH), Art & Architecture Thesaurus (AAT), Thesaurus of Geographic Names (TGN), Union List of

  7. Image Logs At Coso Geothermal Area (2011) | 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:QAsource History View NewTexas: Energy Resources JumpNewTexas:HydrothermallyIFBIdea OneIllumitex Jump to:11) Jump

  8. Formation Micro-Imager Logs (FMI) | 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 ECoopButtePowerEdistoWhiskeyFootprint Ventures Jump to:45

  9. Image Logs At Coso Geothermal Area (2004) | 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 APPENDIXsource History View NewGuam:on Openei |source History View New Pages

  10. Biomass from Logging Residue and Mill Residue

    E-Print Network [OSTI]

    as a renewable energy resource or for chemical extraction. This report represents the most current data harvesting or are cut off the central stem of the tree due to a merchantability standard. Limbs refer for energy production or chemical extraction. Table 1 shows the logging residue available in East Texas

  11. Imaging

    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 WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat Pumps Heat Pumpsfacility doe logo CH2M-WG logoImaging

  12. Imaging

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdahoImaging Print The

  13. Imaging

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdahoImaging Print

  14. INSPIRE and SPIRES Log File Analysis

    SciTech Connect (OSTI)

    Adams, Cole; /Wheaton Coll. /SLAC

    2012-08-31

    SPIRES, an aging high-energy physics publication data base, is in the process of being replaced by INSPIRE. In order to ease the transition from SPIRES to INSPIRE it is important to understand user behavior and the drivers for adoption. The goal of this project was to address some questions in regards to the presumed two-thirds of the users still using SPIRES. These questions are answered through analysis of the log files from both websites. A series of scripts were developed to collect and interpret the data contained in the log files. The common search patterns and usage comparisons are made between INSPIRE and SPIRES, and a method for detecting user frustration is presented. The analysis reveals a more even split than originally thought as well as the expected trend of user transition to INSPIRE.

  15. Chiral Gravity, Log Gravity and Extremal CFT

    E-Print Network [OSTI]

    Alexander Maloney; Wei Song; Andrew Strominger

    2009-03-26

    We show that the linearization of all exact solutions of classical chiral gravity around the AdS3 vacuum have positive energy. Non-chiral and negative-energy solutions of the linearized equations are infrared divergent at second order, and so are removed from the spectrum. In other words, chirality is confined and the equations of motion have linearization instabilities. We prove that the only stationary, axially symmetric solutions of chiral gravity are BTZ black holes, which have positive energy. It is further shown that classical log gravity-- the theory with logarithmically relaxed boundary conditions --has finite asymptotic symmetry generators but is not chiral and hence may be dual at the quantum level to a logarithmic CFT. Moreover we show that log gravity contains chiral gravity within it as a decoupled charge superselection sector. We normally evaluate the Euclidean sum over geometries of chiral gravity and show that it gives precisely the holomorphic extremal CFT partition function. The modular invariance and integrality of the expansion coefficients of this partition function are consistent with the existence of an exact quantum theory of chiral gravity. We argue that the problem of quantizing chiral gravity is the holographic dual of the problem of constructing an extremal CFT, while quantizing log gravity is dual to the problem of constructing a logarithmic extremal CFT.

  16. Acoustic Waveform Logging - Advances In Theory And Application

    E-Print Network [OSTI]

    Cheng, C. H.

    Full-waveform acoustic logging has made significant advances in both theory and application in recent years, and these advances have greatly increased the capability of log analysts to measure the physical properties of ...

  17. An Oblivious Transfer Protocol with Log-Squared Communication

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    An Oblivious Transfer Protocol with Log-Squared Communication Helger Lipmaa 1 Cybernetica AS, Lai 6-computation and communication (k · log2 n + · log n), where k is a possibly non-constant security parameter. The new proto- col communication and is private in the standard complexity-theoretic model. Keywords. Computationally

  18. An Oblivious Transfer Protocol with LogSquared Communication

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    An Oblivious Transfer Protocol with Log­Squared Communication Helger Lipmaa 1 Cybernetica AS, Lai 6­computation and communication #(k · log 2 n + # · log n), where k is a possibly non­constant security parameter. The new proto the same asymptotic communication and is private in the standard complexity­theoretic model. Keywords

  19. Incorporating Seasonality into Search Suggestions Derived from Intranet Query Logs

    E-Print Network [OSTI]

    Kruschwitz, Udo

    Incorporating Seasonality into Search Suggestions Derived from Intranet Query Logs Stephen Dignum performed on query logs collected for major Web search engines, query log analysis to enhance search search engine can be enhanced by adapting the search system to real users' search behaviour through

  20. Modeling of capillary pressure behavior using standard open hole wireline log data: Demonstrated on carbonates from the Middle East

    SciTech Connect (OSTI)

    Ross, C.M. [Rice Univ., Houston, TX (United States); Callender, C.A.; Turbeville, J.B. [and others

    1995-12-31

    A new technique was developed to model capillary pressure behavior from wireline log data and applied to carbonate reservoir rock from a Saudi Aramco field. The method utilizes image analysis of petrographic thin sections, capillary pressure measurements, and neural network analysis of standard open hole wireline log data. Twenty capillary pressure curves and their associated pore type proportions (identified in thin section) are the basis for the capillary pressure predictive model for the reservoir interval under study. Neural network analysis of the wireline log data was used to continuously predict pore type proportions downhole. The neural network-derived pore proportions were than applied in constructing wireline log-based capillary pressure curves using the capillary pressure predictive model. This method provides an accurate means of determining capillary pressure behavior from wireline log data and extends the applicability of the limited number of available capillary pressure curves. Once trained, the neural network may be applied to other wells in the field as long as the training set (both rock samples and wireline log types) is representative within the study area. The capillary pressure curves predicted from wireline log data can be used for the same purposes as capillary pressure curves measured on core samples, such as determining water saturation in intervals above and within the transition zone.

  1. Test results of a corrosion logging technique using electromagnetic thickness and pipe analysis logging tools

    SciTech Connect (OSTI)

    Iliyan, I.S.; Brown, G.A.; Cotton, W.J. Jr.

    1983-04-01

    Recent innovations in subsurface corrosion practices of the Arabian American Oil Co. (ARAMCO) have reduced logging and workover costs substantially and have permitted the detection of corrosion in the outer string of two concentric casing strings. At the request of ARAMCO, Schlumberger conducted test under both simulated and field conditions. Results showed that the data required to evaluate casing corrosion in a 7-in.X9 5/8-in. completion can be obtained during a single logging run using a 21.6-in. coil spacing electromagnetic thickness tool (ETT-A /SUP TM/ ) sonde (as opposed to two runs with 17.6-in. and 21.6-in. sondes previously used). In addition, corrosion of the outer string of 9 5/8-in. or 13 3/8-in. casing can be detected by using the results of the ETT-A logs and pipe-analysis tool (PAT) logs or caliper logs. To date, the application of this technique has been very successful in ARAMCO's operations.

  2. The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says

    E-Print Network [OSTI]

    The Borneo Project : Indonesia Fails to Stop Illegal Logging, Report Says Indonesia Fails to Stop Illegal Logging, Report Says by Irwan Firdaus, The Associated Press January 15th, 2003 JAKARTA, Indonesia -- Corruption in Indonesia's police and military has contributed to a surge in illegal logging that has

  3. Spontaneous Potential Well Log | 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| Open Energy Information Serbia-Enhancing CapacityVectren) Jump to:Spill Prevention andWell Log Jump to: navigation,

  4. Cement Bond Log | 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:RAPIDCavallo Energy JumpCeiling Fan JumpCement Bond Log

  5. Logging in to Cori P1

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting Hotel -Logging in

  6. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, W.B. III.

    1989-02-14

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in geological formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleons present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be performed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described. 6 figs.

  7. Dual excitation acoustic paramagnetic logging tool

    DOE Patents [OSTI]

    Vail, III, William B. (Bothell, WA)

    1989-01-01

    New methods and apparatus are disclosed which allow measurement of the presence of oil and water in gelogical formations using a new physical effect called the Acoustic Paramagnetic Logging Effect (APLE). The presence of petroleum in formation causes a slight increase in the earth's magnetic field in the vicinity of the reservoir. This is the phenomena of paramagnetism. Application of an acoustic source to a geological formation at the Larmor frequency of the nucleous present causes the paramagnetism of the formation to disappear. This results in a decrease in the earth's magnetic field in the vicinity of the oil bearing formation. Repetitively frequency sweeping the acoustic source through the Larmor frequency of the nucleons present (approx. 2 kHz) causes an amplitude modulation of the earth's magnetic field which is a consequence of the APLE. The amplitude modulation of the earth's magnetic field is measured with an induction coil gradiometer and provides a direct measure of the amount of oil and water in the excitation zone of the formation. The phase of the signal is used to infer the longitudinal relaxation times of the fluids present, which results in the ability in general to separate oil and water and to measure the viscosity of the oil present. Such measurements may be preformed in open boreholes and in cased well bores. The Dual Excitation Acoustic Paramagnetic Logging Tool employing two acoustic sources is also described.

  8. Energy Efficiency in Log Homes | Department of Energy

    Office of Environmental Management (EM)

    or purchasing a manufactured log home, you should consider several factors related to energy efficiency. The R-Value of Wood A material's thermal resistance or resistance to...

  9. Log-normal distribution for correlators in lattice QCD?

    E-Print Network [OSTI]

    Thomas DeGrand

    2012-04-20

    Many hadronic correlators used in spectroscopy calculations in lattice QCD simulations appear to show a log-normal distribution at intermediate time separations.

  10. 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...

  11. Selecting The Optimal Logging Suite For Geothermal Reservoir...

    Open Energy Info (EERE)

    tensile wall fractures, and were adequate to detect stratigraphic features. Density, photo-electric factor (PEF), neutron, and gamma ray (GR) logs provided sufficient...

  12. Method for determining formation quality factor from well log...

    Office of Scientific and Technical Information (OSTI)

    determining formation quality factor from well log data and its application to seismic reservoir characterization Citation Details In-Document Search Title: Method for...

  13. Chemical Logging At Dixie Valley Geothermal Area (Los Alamos...

    Open Energy Info (EERE)

    Chemical Logging At Dixie Valley Geothermal Area (Los Alamos National Laboratory, NM, 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity:...

  14. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore, K.

    2001-07-13

    The objective of this project is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. This is the first annual progress report submitted to the DOE. It reports on the work completed during the reporting period even if it may have started before this period. This project is a partnership between Professor George J. Hirasaki at Rice University and Professor Kishore Mohanty at University of Houston. In addition to the DOE, this project is supported by a consortium of oil companies and service companies. The fluid properties characterization has emphasized the departure of live oils from correlations based on dead oils. Also, asphaltic components can result in a difference between the T1 and T2 relaxation time distributions as well as reduce the hydrogen index. The fluid rock characterizations that are reported here are the effects of wettability and internal magnetic field gradients. A pore reconstruction method ha s been developed to recreate three-dimensional porous media from two-dimensional images that reproduce some of their key statistical properties. A Monte Carlo simulation technique has been developed to calculate the magnetization decay in fluid saturated porous media given their pore structure.

  15. Drag reduction in coal log pipelines

    SciTech Connect (OSTI)

    Marrero, T.R.; Liu, H.

    1996-12-31

    It is well-known that solutions of dissolved long-chain macromolecules produce lower friction or drag losses than with the solvent alone. In coal log pipeline (CLP), water is the conveying medium. Synthetic polymers such as poly(ethylene oxide) have been dissolved in water and tested for their extent of drag reduction as a function of concentration and other variables. Lab-scale experimental results for CLP indicate substantial drag reduction at low concentration levels of polymer. But, the macromolecules exhibit degradation under mechanical shear stresses. The large molecules break into smaller units. This degradation effect causes a loss of drag reduction. However, high levels of drag reduction can be maintained as follows: (1) by injecting polymer into the CLP at several locations along the pipeline, (2) by injecting polymer of different particle sizes, (3) by using more robust types of polymers, or (4) by using polymer-fiber mixtures. This report presents the value of drag-reducing agents in terms of pumping power net cost savings. In addition, this report outlines the environmental impact of drag reduction polymers, and end-of-pipeline water treatment processes. For an operating CLP, hundreds of miles in length, the use of poly(ethylene oxide) as a drag reducing agent provides significant pumping power cost savings at a minimal materials cost.

  16. Saving big bucks with your log sheets

    SciTech Connect (OSTI)

    Puskar, J.R. [CEC Consultants, Inc., Cleveland, OH (United States)

    1999-07-01

    This article speaks to a common problem in a lot of industrial and institutional boilerhouses. Most boilerhouses do an excellent job at collecting information. Circular chart recorders churn out pressures, temperatures, and flows for everything from steam to natural gas to city water consumption. At most facilities, this stuff all gets chucked into a drawer or file cabinet daily. Have you ever wondered why you collect and record what you do? What were people thinking when the existing logs were set up? This article attempts to challenge the original thought process and hopes to evoke in the reader a renewed vision of what should be collected, how, and then what can be done with it. The goal of this article is not to define new and expensive data acquisition or control system projects. It is instead to show how to develop systems that only require paper, pencils, and people who are motivated and care. These people are probably already being paid to do most of this work. Experience is that if these people are treated with respect and given some simple tools they will do amazing things beyond what was thought possible. This is a low-tech humanistic approach that has a fabulous rate of return. It`s also something that can be immediately implemented.

  17. M.Sc. Thesis Forensic examination of log files

    E-Print Network [OSTI]

    to aid the investigation, so that the digital evidence can be extracted in a fast and e#cient manner of artificial neural networks to classify router logs, classification of each log entry, and development of Service, Flow Classification, Feature Extraction, Tra#c Aggregation. #12; #12; Contents 1 Introduction 1 1

  18. M.Sc. Thesis Forensic examination of log files

    E-Print Network [OSTI]

    to aid the investigation, so that the digital evidence can be extracted in a fast and efficient manner of artificial neural networks to classify router logs, classification of each log entry, and development of Service, Flow Classification, Feature Extraction, Traffic Aggregation. #12;#12;Contents 1 Introduction 1 1

  19. Efficient Discovery of Understandable Declarative Process Models from Event Logs

    E-Print Network [OSTI]

    van der Aalst, Wil

    Efficient Discovery of Understandable Declarative Process Models from Event Logs Fabrizio M. Maggi models are more suitable for less structured processes, most discovery techniques generate conventional) process discovery (learning a model from example traces in an event log), (b) confor- mance checking

  20. Mining Configurable Process Models from Collections of Event Logs

    E-Print Network [OSTI]

    van der Aalst, Wil

    towards the discovery of a configurable process model based on a collection of event logs. In this paper related work on process discovery, configurable process models and current model merging techniquesMining Configurable Process Models from Collections of Event Logs J.C.A.M. Buijs, B.F. van Dongen

  1. Preprocessing and Mining Web Log Data for Web Personalization

    E-Print Network [OSTI]

    Ruggieri, Salvatore

    Preprocessing and Mining Web Log Data for Web Personalization M. Baglioni1 , U. Ferrara2 , A. Romei/26, 56017 S. Martino Ulmiano (PI) Italy ferrara@ksolutions.it Abstract. We describe the web usage mining behaviour of a web site users. The models are inferred from the access logs of a web server by means of data

  2. Directed Planar Reachability Is in Unambiguous Log-Space

    E-Print Network [OSTI]

    Variyam, Vinodchandran N.

    4 Directed Planar Reachability Is in Unambiguous Log-Space CHRIS BOURKE, RAGHUNATH TEWARI, and N. V reachability, planar graphs, unambiguous log-space ACM Reference Format: Bourke, C., Tewari, R. Bourke, R. Tewari, and N. V. Vinodchandran, Department of Computer Science and Engineering, University

  3. Massively-parallel electrical-conductivity imaging of hydrocarbons using the Blue Gene/L supercomputer

    E-Print Network [OSTI]

    2008-01-01

    CONDUCTIVITY IMAGING OF HYDROCARBONS USING THE BLUE GENE/Lidentification of hydrocarbon filled layers in deepwater,”Remote sensing of hydrocarbon layers by seabed logging (

  4. Geothermal well log interpretation state of the art. Final report

    SciTech Connect (OSTI)

    Sanyal, S.K.; Wells, L.E.; Bickham, R.E.

    1980-01-01

    An in-depth study of the state of the art in Geothermal Well Log Interpretation has been made encompassing case histories, technical papers, computerized literature searches, and actual processing of geothermal wells from New Mexico, Idaho, and California. A classification scheme of geothermal reservoir types was defined which distinguishes fluid phase and temperature, lithology, geologic province, pore geometry, salinity, and fluid chemistry. Major deficiencies of Geothermal Well Log Interpretation are defined and discussed with recommendations of possible solutions or research for solutions. The Geothermal Well Log Interpretation study and report has concentrated primarily on Western US reservoirs. Geopressured geothermal reservoirs are not considered.

  5. Partnership Logging Accidents Cornelis de Hoop, LA Forest Products Lab

    E-Print Network [OSTI]

    , · Sonny Mills, LA Dept. of Labor · Greg Honaker, OSHA #12;OSHA -- LA Logging Council Strategic Partnership startup procedures. · Safe maintenance & repair procedures. · Safe work flow. · Minimize risk to fellers

  6. Multipole seismoelectric logging while drilling (LWD) for acoustic velocity measurements

    E-Print Network [OSTI]

    Zhu, Zhenya

    2012-01-01

    In seismoelectric well logging, an acoustic wave propagates along a borehole and induces electrical signals along the borehole wall. The apparent velocities of these seismoelectric signals are equal to the formation ...

  7. JOBAID-LOGGING IN TO THE OLC LEARNING SYSTEM

    Broader source: Energy.gov [DOE]

    In this job aid you will Log In to the system, Retrieve Forgotten Password and/or User ID, and Use the LMS Help System built into the application.

  8. Efficiently log and perforate 60 + wells with coiled tubing

    SciTech Connect (OSTI)

    Fertl, W.H.; Hotz, R.F.

    1987-07-01

    In today's petroleum industry, more and more emphasis is being placed on logging and completion techniques for highly deviated (extended-reach) and horizontal boreholes. This is the result of cost-effective development of oil and gas via: a minimum number of production platforms on large structures, incremental but marginal reserves in outlying and/or small fault blocks, shallow reservoirs in deep offshore waters, and significant hydrocarbon accumulations in environmentally sensitive and/or restrictive areas, e.g., perma-frost, urban areas, etc. The major challenge in logging such high-angle, extended-reach, and also horizontal boreholes is guiding the logging tool string to the bottom of the wellbore. In the horizontal portion of a borehole, the use of coiled tubing has proven successful in ''pushing'' the logging instrumentation toward the bottom (end) of the borehole.

  9. Log-domain circuit models of chemical reactions

    E-Print Network [OSTI]

    Mandal, Soumyajit

    We exploit the detailed similarities between electronics and chemistry to develop efficient, scalable bipolar or subthreshold log-domain circuits that are dynamically equivalent to networks of chemical reactions. Our ...

  10. Symposium on high-temperature well-logging instrumentation

    SciTech Connect (OSTI)

    Dennis, B.R. (comp.)

    1986-06-01

    The symposium contains papers about developments in borehole logging instrumentation that can withstand downhole temperatures in excess of 300/sup 0/C and pressures greater than 103 MPa. Separate abstracts have been prepared for individual papers. (ACR)

  11. Higher Order Modes in Acoustic Logging While Drilling

    E-Print Network [OSTI]

    Chi, Shihong

    2005-01-01

    In multipole acoustic logging while drilling (LWD), the fundamental modes dominate recorded waveforms. Higher order modes may also appear and complicate the processing of LWD data. In dipole LWD measurements, the dipole ...

  12. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore K.

    2003-02-10

    The objective of this project was to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity.

  13. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    Hirasaki, George J.; Mohanty, Kishore K.

    2003-02-10

    The objective of this project was to characterize the fluid properties and fluid-rock interactions which are needed for formation evaluation by NMR well logging. NMR well logging is finding wide use in formation evaluation. The formation parameters commonly estimated were porosity, permeability, and capillary bound water. Special cases include estimation of oil viscosity, residual oil saturation, location of oil/water contact, and interpretation on whether the hydrocarbon is oil or gas.

  14. Initial results from an acoustic logging-while-drilling tool

    SciTech Connect (OSTI)

    Minear, J.W.; Heysse, D.R.; Boonen, P.M.

    1996-12-31

    This paper presents the initial results from field tests of an acoustic logging-while-drilling tool. Over 60,000 ft of well have been logged with 6.75-in.- and 8-in.-diameter versions of the tool. Various types of formations were encountered with compressional slowness values ranging from 55 {mu}sec/ft to 170 {mu}sec/ft. The tool is configured as a borehole-compensated device; transmitters are located on opposite sides of an array of four receivers. An ultrasonic standoff transducer provides a tool-to-borehole wall distance measurement for data quality evaluation and processing. Slowness values are computed downhole using real-time waveform processing. Full-waveform data are stored for retrieval and re-processing at the surface. Interactive processing software allows an engineer to reprocess log intervals of poorer log quality and improve the slowness log computed downhole. Downhole-processed and post-drilling-processed slowness logs are compared, and generally show close agreement. These logs also agree well with wireline slowness logs. Rugose boreholes and attenuating formations can reduce waveform quality. A new rapid-fire technique acquires multiple estimates of slowness as the drillstring rotates through only a fraction of a revolution, and improves slowness quality in rugose boreholes. Shear-wave energy is clearly apparent in most waveform data. Waveforms can be processed to yield both shear and compressional slowness values. These can then be used to estimate porosity, compute elastic moduli of the rock (for example, Poisson`s ratio, Young`s modulus, bulk compressibility, and shear modulus), and to compute synthetic seismograms for correlation with seismic profiles. Some of these applications of compressional and shear slowness data are discussed with examples.

  15. Logging with coiled tubing less effective than with drill pipe

    SciTech Connect (OSTI)

    Van Den Bosch, R. )

    1994-01-31

    Coiled tubing offered neither economic nor operational advantages over drill pipe for conveying logging tools in open hole shallow horizontal wells in Germany. In the past 2 years, Mobil Erdgas-Erdoel GMbH (MEEG) participated in completing eight shallow horizontal wells. These were medium-to-short radius wells at measured depths of between 850 and 2,000 m. The average horizontal section was 350 m. The logging tools were conveyed by coiled tubing or drill pipe. MEEG attempted to log five wells with coiled tubing-conveyed tools, four with 1 1/2-in. tubing. Total depth was reached reliably in only one well, the shallowest and with the shortest horizontal section. Simulation programs were unreliable for calculating the downhole forces of the coil/tool combination or predicting possible helical lockups. In wells with drill pipe-conveyed logs, the tool combination could always be pushed to total depth, and the operations were generally faster and cost less than logging with coiled tubing. Also, drill pipe allowed longer and heavier tool strings. For reliable operations, coiled tubing needs to be more rigid, rig-up/rig-down times need to be improved, and the simulation programs must be more reliable for predicting downhole lock-up.

  16. Technical evaluation of software for gamma-ray logging system

    SciTech Connect (OSTI)

    Stromswold, D.C.

    1994-05-01

    This report contains results of a technical review of software, identified as LGCALC, that processes data collected by a high-resolution gamma-ray borehole logging system. The software presently operates within Westinghouse Hanford Company, Department of Geosciences, to process data collected by the Radionuclide Logging System. The software has been reviewed for its suitability for processing data to be collected by new high-resolution gamma-ray logging trucks scheduled to begin operational tests within Westinghouse Tank Waste Remediation Systems during 1994. Examination of the program code and hands-on operational tests have shown that this software is suitable for its intended use of processing high-resolution gamma-ray data obtained from borehole logging. Most of the code requires no changes, but in a few limited cases, suggestions have been made to correct errors or improve operation. Section 4 describes these changes. The technical review has confirmed the appropriateness, correctness, completeness, and coding accuracy of algorithms used to process spectral gamma-ray data, leading to a calculation of subsurface radionuclide contaminants. Running the program with test data from calibration models has confirmed that the program operates correctly. Comparisons with hand calculations have shown the correctness of the output from the program, based on known input data. Section 3 describes these tests. The recommended action is to make the near term programming changes suggested in Section 4.1 and then use the LGCALC analysis program with the new high-resolution logging systems once they have been properly calibrated.

  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. Instructions for using Power Scan 2000 1. If you are an authorized University of Memphis user, log in with your UUID and

    E-Print Network [OSTI]

    Dasgupta, Dipankar

    in with your UUID and password. Once logged in, you can save items to the desktop and then transfer the file, or saved to a removable storage device. To print, guests should click on Go Print. The print job will go Rotate Mirror Straighten #12;To scan an image for printing/saving, drag the green box to frame the page

  19. Annual Logging Symposium, June 3-6, 2007 RAPID SIMULATION OF BOREHOLE NUCLEAR MEASUREMENTS

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    with other well logs. The particular case of logging while drilling (LWD) logs in high-angle wells of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper was prepared for presentation techniques as well as for their quantitative integration with other borehole measurements

  20. VerSum: Verifiable Computations over Large Public Logs Jelle van den Hooff

    E-Print Network [OSTI]

    blockchains, or a Certificate Transparency log. VERSUM clients ensure that the output is correct by comparing publicly available logs, whose validity is guaranteed. The logs are large (e.g., the Bitcoin blockchain is added to the Bitcoin blockchain). To run computations over these logs requires a Permission to make

  1. Well-log interpretation of carbonate reservoirs with bimodal porosity 

    E-Print Network [OSTI]

    Tandircioglu, Ahmet

    1990-01-01

    ) in the flushed zone. The difference between the two was an INDUCTION RESISTIVITY SP-R-2 5 MV 9750 GAS EFFECT 4t W Run I SONIC g SW 26 58% 22 65% st Run 2 Figure 4-%ell-log responses from a Frio sandstone with bimodal porosity, Nueces County, Texas... ~ ~ ~ ' ~ ~ 23 Ol LIPF 5 OAMM* RAY SHIRE' IA POROSITY 55 15 OAL O 0 PORE ~ PERF Figure 9-Gamma-ray (GR), caliper(CAL), density porosity (gD), and neutron porosity (9N) logs through the Smackover in the Shirey 1A well, Claiborne Parish, Louisiana...

  2. Correlation of log response to production in the Austin Chalk 

    E-Print Network [OSTI]

    Behseresht, Cyrus Douglas

    1992-01-01

    of this study is to determine to what degree the response of resistivity well-logs reflects the productivity of individual wells in the Austin Chalk. An area in south-central Burleson County was chosen for the study. Logs were available from 38 wells... for the Proco Gise data, Ro at 4% is 3. 59 ohm-m (figure 12). Thus, the Proco Gise ?1 data supports an Ro of approximately 3. 58 at 4% porosity in the Austin Chalk. This test of the empirical relationship between Rt and water saturation in the Chalk does...

  3. Stochastic Inversion of InSAR Data to Assess the Probability of Pressure Penetration into the Lower Caprock at In Salah

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

    Ramirez, Abelardo; Foxall, William

    2014-05-28

    Stochastic inversions of InSAR data were carried out to assess the probability that pressure perturbations resulting from CO2 injection into well KB-502 at In Salah penetrated into the lower caprock seal above the reservoir. Inversions of synthetic data were employed to evaluate the factors that affect the vertical resolution of overpressure distributions, and to assess the impact of various sources of uncertainty in prior constraints on inverse solutions. These include alternative pressure-driven deformation modes within reservoir and caprock, the geometry of a sub-vertical fracture zone in the caprock identified in previous studies, and imperfect estimates of the rock mechanical properties.more »Inversions of field data indicate that there is a high probability that a pressure perturbation during the first phase of injection extended upwards along the fracture zone ~ 150 m above the reservoir, and less than 50% probability that it reached the Hot Shale unit at 1500 m depth. Within the uncertainty bounds considered, it was concluded that it is very unlikely that the pressure perturbation approached within 150 m of the top of the lower caprock at the Hercynian Unconformity. The results are consistent with previous deterministic inversion and forward modeling studies.« less

  4. Stochastic Inversion of InSAR Data to Assess the Probability of Pressure Penetration into the Lower Caprock at In Salah

    SciTech Connect (OSTI)

    Ramirez, Abelardo; Foxall, William

    2014-05-28

    Stochastic inversions of InSAR data were carried out to assess the probability that pressure perturbations resulting from CO2 injection into well KB-502 at In Salah penetrated into the lower caprock seal above the reservoir. Inversions of synthetic data were employed to evaluate the factors that affect the vertical resolution of overpressure distributions, and to assess the impact of various sources of uncertainty in prior constraints on inverse solutions. These include alternative pressure-driven deformation modes within reservoir and caprock, the geometry of a sub-vertical fracture zone in the caprock identified in previous studies, and imperfect estimates of the rock mechanical properties. Inversions of field data indicate that there is a high probability that a pressure perturbation during the first phase of injection extended upwards along the fracture zone ~ 150 m above the reservoir, and less than 50% probability that it reached the Hot Shale unit at 1500 m depth. Within the uncertainty bounds considered, it was concluded that it is very unlikely that the pressure perturbation approached within 150 m of the top of the lower caprock at the Hercynian Unconformity. The results are consistent with previous deterministic inversion and forward modeling studies.

  5. Illegal Logging and Illegal Activites in the Forestry Sector

    E-Print Network [OSTI]

    illegal activities in the forestry sector Definition of illegal logging : · "Timber harvesting harvesting procedure itself may be illegal, including corrupt means to gain access to forests(....)." (Fern, riverbanks and water catchments · Removing under/oversized trees from public forests · Extracting more timber

  6. Subsistence Halibut Community Harvest Log Page 1 of 4

    E-Print Network [OSTI]

    -0512, Expiration date: 08/31/2017 Subsistence Halibut Community Harvest Permit (CHP) Log U.S. Dept of Commerce-1668 Telephone: 1-800-304-4846 FAX: 907-586-7354 BLOCK A ­ CHP COORDINATOR 1. Name of CHP Coordinator 2. Signature of CHP Coordinator BLOCK B -- SUBSISTENCE FISHER IDENTIFICATION 1. Name of Fisher (First, Middle

  7. SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of hydrocarbons from the reservoirs, notably shale, is attributed to realizing the key fundamentals of reservoir and mineralogy is crucial in order to identify the "right" pay-zone intervals for shale gas production. Also

  8. 17. Integrating Engineered Log JamTechnology into River Rehabilitation

    E-Print Network [OSTI]

    Montgomery, David R.

    17. Integrating Engineered Log JamTechnology into River Rehabilitation Tim Abbe, George Pess, David R. Montgomery, and Kevin L. Fetherston ABSTRACT Reach-scale river rehabilitation projects using and engineering practices. The ELJ demonstration projects were developed as part of river rehabilitation efforts

  9. Fluid-Rock Characterization and Interactions in NMR Well Logging

    SciTech Connect (OSTI)

    George J. Hirasaki; Kishore K. Mohanty

    2005-09-05

    The objective of this report is to characterize the fluid properties and fluid-rock interactions that are needed for formation evaluation by NMR well logging. The advances made in the understanding of NMR fluid properties are summarized in a chapter written for an AAPG book on NMR well logging. This includes live oils, viscous oils, natural gas mixtures, and the relation between relaxation time and diffusivity. Oil based drilling fluids can have an adverse effect on NMR well logging if it alters the wettability of the formation. The effect of various surfactants on wettability and surface relaxivity are evaluated for silica sand. The relation between the relaxation time and diffusivity distinguishes the response of brine, oil, and gas in a NMR well log. A new NMR pulse sequence in the presence of a field gradient and a new inversion technique enables the T{sub 2} and diffusivity distributions to be displayed as a two-dimensional map. The objectives of pore morphology and rock characterization are to identify vug connectivity by using X-ray CT scan, and to improve NMR permeability correlation. Improved estimation of permeability from NMR response is possible by using estimated tortuosity as a parameter to interpolate between two existing permeability models.

  10. Logging threatens Indonesia's biodiversity By Dianthus Saputra Estey in Jakarta

    E-Print Network [OSTI]

    Logging threatens Indonesia's biodiversity By Dianthus Saputra Estey in Jakarta Monday 13 October 2003, 16:57 Makka Time, 13:57 GMT A tenth of the world's tropical rainforests lie in Indonesia year," Togu Manurung from Forest Watch Indonesia said. This ranks the depletion of Indonesia

  11. Feedback Control Theory and Processing System Log Streams Research Project

    E-Print Network [OSTI]

    Tang, Pingzhong

    Feedback Control Theory and Processing System Log Streams by Wei Xu Research Project Submitted, and on exploring general techniques of applying feedback control theory to distributed computer systems. We have. All problems addressed are solved systematically with feedback-control-theory. We discuss three uses

  12. Lightweight Logging for Lazy Release Consistent Distributed Shared Memory

    E-Print Network [OSTI]

    Neves, Nuno

    Lightweight Logging for Lazy Release Consistent Distributed Shared Memory Manuel Costa, Paulo Guedes, Manuel Sequeira, Nuno Neves, Miguel Castro IST - INESC R. Alves Redol 9, 1000 Lisboa PORTUGAL algorithm for a DSM system based on lazy release Manuel Costa, Nuno Neves and Miguel Castro were supported

  13. Calibration of NMR well logs from carbonate reservoirs with laboratory NMR measurements and ?XRCT

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

    Mason, Harris E.; Smith, Megan M.; Hao, Yue; Carroll, Susan A.

    2014-12-31

    The use of nuclear magnetic resonance (NMR) well log data has the potential to provide in-situ porosity, pore size distributions, and permeability of target carbonate CO? storage reservoirs. However, these methods which have been successfully applied to sandstones have yet to be completely validated for carbonate reservoirs. Here, we have taken an approach to validate NMR measurements of carbonate rock cores with independent measurements of permeability and pore surface area to volume (S/V) distributions using differential pressure measurements and micro X-ray computed tomography (?XRCT) imaging methods, respectively. We observe that using standard methods for determining permeability from NMR data incorrectlymore »predicts these values by orders of magnitude. However, we do observe promise that NMR measurements provide reasonable estimates of pore S/V distributions, and with further independent measurements of the carbonate rock properties that universally applicable relationships between NMR measured properties may be developed for in-situ well logging applications of carbonate reservoirs.« less

  14. Annual Logging Symposium, June 26-29, 2005 JOINT STOCHASTIC INVERSION OF PETROPHYSICAL LOGS AND 3D

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    : APPLICATION TO A GULF- OF-MEXICO DEEPWATER HYDROCARBON RESERVOIR A. Contreras and C. Torres seismic data acquired in the deepwater Gulf of Mexico. Reservoir units consist of stacked turbidite sands and fluid saturation. Both petrophysical logs and elastic-petrophysical correlation cross-plots, together

  15. Knowledge-based stratigraphic well-log correlation 

    E-Print Network [OSTI]

    Denton, Michael A.

    1990-01-01

    correlated higher ranking strata. Thus, higher ranking correlations provide heuristics for lower ranking correlations. The system represents strata by symbols from a set of standard symbols which include peaks, troughs, and steps. Symbols replace events.... The zone attributes abstracted from the well-log include the following: interval, lithology ? classified as shale or non-shale, zone position, general zone shape, thickness, average amplitude, zone above name, and zone below name. Thus, the expert system...

  16. Gamma-Ray Logging Workshop (February 1981) | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12,Executive Compensation References: FARWashers |Gamma-Ray Logging Workshop

  17. Thermal Conductivity from Core and Well log Data

    E-Print Network [OSTI]

    Hartmann, Andreas; Clauser, Christoph

    2008-01-01

    The relationships between thermal conductivity and other petrophysical properties have been analysed for a borehole drilled in a Tertiary Flysch sequence. We establish equations that permit us to predict rock thermal conductivity from logging data. A regression analysis of thermal conductivity, bulk density, and sonic velocity yields thermal conductivity with an average accuracy of better than 0.2 W/(m K). As a second step, logging data is used to compute a lithological depth profile, which in turn is used to calculate a thermal conductivity profile. From a comparison of the conductivity-depth profile and the laboratory data it can be concluded that thermal conductivity can be computed with an accuracy of less than 0.3 W/(m K)from conventional wireline data. The comparison of two different models shows that this approach can be practical even if old and incomplete logging data is used. The results can be used to infer thermal conductivity for boreholes without appropriate core data that are drilled in a simil...

  18. Moab Project Logs 2 Million Work Hours Without Lost-Time Injury...

    Energy Savers [EERE]

    Logs 2 Million Work Hours Without Lost-Time Injury or Illness Moab Project Logs 2 Million Work Hours Without Lost-Time Injury or Illness March 31, 2014 - 12:00pm Addthis Empty...

  19. Event Based Low Frequency Impedance Modeling using Well Logs and Seismic Attributes

    E-Print Network [OSTI]

    Mosegaard, Klaus

    prediction of this specific attribute. However, quantitative reservoir characterization in chalk is severelyEvent Based Low Frequency Impedance Modeling using Well Logs and Seismic Attributes Radmila logs. Seismic inversion, a process of converting seismic data into relative impedance, provides

  20. What is a blog? The word "blog," a contraction of "web log," is an informational web

    E-Print Network [OSTI]

    Zhou, Pei

    What is a blog? The word "blog," a contraction of "web log," is an informational web page's log, blogs on the web tend to maintain an ordered chronology, although they often unfold in reverse

  1. Comparison of VSP and sonic-log data in nonvertical wells in a heterogeneous structure

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    geophysics, sonic-log measurements and vertical seismic profiling VSP are two techniques which provide and Ludk Klimes1 ABSTRACT To compare the results of sonic-log measurements and of vertical seismic profiling VSP , sonic-log velocities are used to estimate the corresponding traveltime in the geologic

  2. Quantitative interpretation of pulsed neutron capture logs: Part 1 --Fast numerical simulation

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    for shoulder-bed effects on R logs acquired in sand- shale laminated reservoirs. Because of diffusion effects responses of pure-sand and pure- shale end members of the sedimentary sequence. We have developed a new of waterflood residual oil saturation via the log-inject-log procedure (Richardson et al., 1973; Reedy, 1984

  3. Property:FirstWellLog | 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 JEnvironmental Jump to: navigation,Property EditMimeType Jump to:FirstWellLog Jump to: navigation,

  4. Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals

    E-Print Network [OSTI]

    Downs, Robert T.

    1 Log of Changes to IMA Mineral List This log file was begun in June 2010 to keep track of changes to the IMA list of minerals at http://rruff.info/IMA. 2 August 2013: Eltyubyuite: New mineral descriptions of wadalite: a new mineral from the Northern Caucasus, Kabardino-Balkaria, Russia. European Journal

  5. Power spectra and distribution of contrasts of natural images from different habitats

    E-Print Network [OSTI]

    Grzywacz, Norberto

    Power spectra and distribution of contrasts of natural images from different habitats Rosario M, atmospheric and underwater habitats were compared. For these habitats, we looked at two measures of the power spectrum and one of the distributions of contrasts. From power spectra, we analyzed the log­log slope

  6. Galaxy rotation curves with log-normal density distribution

    E-Print Network [OSTI]

    Marr, John H

    2015-01-01

    The log-normal distribution represents the probability of finding randomly distributed particles in a micro canonical ensemble with high entropy. To a first approximation, a modified form of this distribution with a truncated termination may represent an isolated galactic disk, and this disk density distribution model was therefore run to give the best fit to the observational rotation curves for 37 representative galaxies. The resultant curves closely matched the observational data for a wide range of velocity profiles and galaxy types with rising, flat or descending curves in agreement with Verheijen's classification of 'R', 'F' and 'D' type curves, and the corresponding theoretical total disk masses could be fitted to a baryonic Tully Fisher relation (bTFR). Nine of the galaxies were matched to galaxies with previously published masses, suggesting a mean excess dynamic disk mass of dex0.61+/-0.26 over the baryonic masses. Although questionable with regard to other measurements of the shape of disk galaxy g...

  7. Object-Based Image Analysis of Downed Logs in Disturbed Forested Landscapes Using Lidar

    E-Print Network [OSTI]

    Kelly, Maggi

    2011-01-01

    for species, fuel for forest fires, and function as a keyis a fuel source for forest fires, and is a key component ofsite was burned by the Star Forest Fire in 2001, eight years

  8. Electric Micro Imager Log At Coso Geothermal Area (2003) | 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 ECoopButtePowerEdisto Electric Coop, Inc Jump to:ElectraLink Jump to:

  9. COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO GEOTHERMAL

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County, California: Energy Resources JumpEmissionCapitalCMEA

  10. arXiv:0909.0288v2[math.AG]16May2010 GEOGRAPHY OF LOG MODELS

    E-Print Network [OSTI]

    Cheltsov, Ivan

    arXiv:0909.0288v2[math.AG]16May2010 GEOGRAPHY OF LOG MODELS: THEORY AND APPLICATIONS. V.V. SHOKUROV AND SUNG RAK CHOI Abstract. An introduction to geography of log models with ap- plications to positive 2. Geography of log models 2 3. Positive cones 13 4. Finiteness results for log models 18 5

  11. Lithology and well log study of Campbell E-2 geothermal test...

    Open Energy Info (EERE)

    Lithology and well log study of Campbell E-2 geothermal test well, Humboldt House geothermal prospect, Pershing County, Nevada Jump to: navigation, search OpenEI Reference...

  12. SIMULATION OF RESISTIVITY LOGGING-WHILE-DRILLING (LWD) MEASUREMENTS USING A SELF-ADAPTIVE

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SIMULATION OF RESISTIVITY LOGGING-WHILE-DRILLING (LWD) MEASUREMENTS USING A SELF-ADAPTIVE GOAL simulate electromagnetic (EM) measurements acquired with a Logging-While- Drilling (LWD) instrument-oriented hp-adaptivity becomes essential to simulate LWD instruments, since it reduces the computational cost

  13. Annual Logging Symposium, May 14-18, 2011 RAPID MODELING OF LWD NUCLEAR MEASUREMENTS ACQUIRED

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SPWLA 52nd Annual Logging Symposium, May 14-18, 2011 1 RAPID MODELING OF LWD NUCLEAR MEASUREMENTS Reliable interpretation of nuclear logging-while-drilling (LWD) measurements acquired in thinly-sector LWD responses in high-angle and horizontal (HA/HZ) wells. We introduce a fast method for numerical

  14. IPL-P: In-Page Logging with PCRAM Kangnyeon Kim

    E-Print Network [OSTI]

    Moon, Bongki

    of flash memory. We report a few advantages of this new design that will make IPL more suitable for flashIPL-P: In-Page Logging with PCRAM Kangnyeon Kim School of Info. & Comm. Engr. Sungkyunkwan (IPL) by augment- ing it with Phase Change RAM (PCRAM) in its log area. IPL is a buffer and storage

  15. Accelerating In-Page Logging with Non-Volatile Memory Sang-Won Lee

    E-Print Network [OSTI]

    Moon, Bongki

    memory. We report a few advantages of this new design that will make IPL more suitable for flash memory competitive in both capacity and price. In this paper, we present an improved design of In-Page Logging (IPL) by augmenting it with phase change RAM (PCRAM) in its log area. IPL is a buffer and storage man- agement

  16. MATHEMATICS AND SCIENCE CENTERS STUDENT SERVICES ACTIVITY LOG/EVENT RECORD

    E-Print Network [OSTI]

    MATHEMATICS AND SCIENCE CENTERS STUDENT SERVICES ACTIVITY LOG/EVENT RECORD Use this log for all): (Check one) ______ GENDER: RACE/ETHNICITY: ___ Mathematics ____ Female ___ Am. Indian/Alaska Native student career and college ___ Mathematics awareness in STEM fields? ___ Yes ___ No ___ Science

  17. Computing Reliability Distributions of Windowed Max-log-map (MLM) Detectors : ISI Channels

    E-Print Network [OSTI]

    Kavcic, Aleksandar

    Computing Reliability Distributions of Windowed Max-log-map (MLM) Detectors : ISI Channels Fabian-log-map (MLM) detector has well-known appli- cations to the intersymbol interefence (ISI) channel [1, · · · , is trans- mitted across the ISI channel. Let the following random This work was performed when F. Lim

  18. Discovering Block-Structured Process Models From Event Logs -A Constructive Approach

    E-Print Network [OSTI]

    van der Aalst, Wil

    Discovering Block-Structured Process Models From Event Logs - A Constructive Approach S University of Technology, P.O. Box 513, NL-5600 MB, Eindhoven, The Netherlands Abstract Process discovery is the problem of, given a log of observed behaviour, finding a process model that `best' describes

  19. Down the borehole but outside the box: innovative approaches to wireline log data interpretation

    E-Print Network [OSTI]

    Bodin, Thomas

    Down the borehole but outside the box: innovative approaches to wireline log data interpretation or more different properties, with depth down a borehole. They are routinely correlated with, and, such as oil and gas, wireline log interpretation is highly developed. In other industries, such as geothermal

  20. Adaptive Fluid Electrical Conductivity Logging to Determine the Salinity Profiles in Groundwater

    E-Print Network [OSTI]

    Quinn, Nigel

    quality data ­ existing production wells mostly used for emergency water supply · High cost of groundwater packers #12;Down-hole tool in difference flow logging (DIFF) #12;Flowing electrical conductivity logging water of constant salinity distinctly different from that of formation water). 2. Shut in well and lower

  1. P2P Logging and Timestamping for Reconciliation Mounir Tlili, W. Kokou Dedzoe,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    P2P Logging and Timestamping for Reconciliation Mounir Tlili, W. Kokou Dedzoe, Esther Pacitti-INRIA {FirstName.LastName}@loria.fr ABSTRACT In this paper, we address data reconciliation in peer-to-peer (P2P) collaborative applications. We propose P2P-LTR (Logging and Timestamping for Reconciliation) which provides P2P

  2. PROCESS MINING OF EVENT LOGS IN AUDITING: OPPORTUNITIES AND Hasselt University

    E-Print Network [OSTI]

    1 PROCESS MINING OF EVENT LOGS IN AUDITING: OPPORTUNITIES AND CHALLENGES Mieke Jans Hasselt 15, 20101 1 Comments are welcome and may be addressed to mieke.jans@uhasselt.be. #12;2 PROCESS MINING that process mining of event logs can provide to internal and external auditors. Process mining aims to extract

  3. Discovering Structured Event Logs from Unstructured Audit Trails for Workflow Mining

    E-Print Network [OSTI]

    Discovering Structured Event Logs from Unstructured Audit Trails for Workflow Mining Liqiang Geng1@ucalgary.ca, {larry.korba, hongyu.liu, yunlin.wang}@nrc.gc.ca Abstract. Workflow mining aims to find graph workflow mining techniques mainly deal with well-structured and -symbolized event logs. In most real

  4. THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL

    E-Print Network [OSTI]

    THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION;2 THE EXTENT AND CAUSES OF ILLEGAL LOGGING: AN ANALYSIS OF A MAJOR CAUSE OF TROPICAL DEFORESTATION IN INDONESIA (CIFOR). ISSN 0967-8875 #12;3 Abstract: This paper considers the scale and underlying causes of recent

  5. Measuring the Effect of Selective Logging on Tropical Forest-Atmosphere Exchange

    E-Print Network [OSTI]

    Goulden, Michael L.

    and low impact extraction methods 1. Conventional Selective Logging: ·Large percent of canopy/soil can takes advantage of newly available PAR. · Reduced Impact Logging and/or Light Harvest resulted in little disturbance. · These are dry season data - chambers indicate decomposition is water limited. POSSIBLE

  6. Reservoir parameters estimation from well log and core data: a case study from the North Sea

    E-Print Network [OSTI]

    Edinburgh, University of

    Reservoir parameters estimation from well log and core data: a case study from the North Sea Jun approach to derive reservoir parameters from core and well-log data in clay­sand mixtures. This method volume, clay content, permeability and fluid saturation. This information is then fed into a velocity

  7. Annual Logging Symposium, June 19-23, 2010 JOINT PROCESSING OF FORWARD AND BACKWARD EXTENDED

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    Copyright 2010, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper was prepared for presentation at the SPWLA 51st Annual Logging Symposium held the assessment of drilling-induced formation damage because it associates high- and low-frequency slownesses

  8. human_subjects_payment_log_less_fifty.docx LAST UPDATED: March 16, 2012 Financial Operations Office

    E-Print Network [OSTI]

    Yu, Gexin

    human_subjects_payment_log_less_fifty.docx LAST UPDATED: March 16, 2012 Financial Operations and Mary Human Subject Payment Log (HSPL) (Use when payment to human subject(s) is $50 or less) RELATED POLICY: Paying Human Subjects for Research Studies The College of William and Mary (the College

  9. Integration of Geology, Rock-Physics, Logs, and Pre-stack Seismic for Reservoir Porosity Estimation

    E-Print Network [OSTI]

    Al Muhaidib, Abdulaziz

    2011-01-01

    The main objective of this paper is to obtain reservoir properties, such as porosity, both at the well locations and in the inter-well regions from seismic data and well logs. The seismic and well-log datasets are from an ...

  10. Annual Logging Symposium, June 19-23, 2010 QUANTITATIVE INTERPRETATION OF PULSED NEUTRON

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    for shoulder-bed effects on PNC logs acquired in sand- shale laminated reservoirs. Due to diffusion effects the sigma responses of pure-sand and pure-shale end members of the sedimentary sequence. We introduce a new measurements. The extension of time-lapse logging in waterflooded reservoirs is the estimation of waterflood

  11. Android Diabetes Log Book E-mail: kongkamol@kku.ac.th

    E-Print Network [OSTI]

    Runapongsa, Kanda

    Android Diabetes Log Book 1 2 3 1 . . 40002 2, 3 . . 40002 E-mail: kongkamol@kku.ac.th Abstract. Generally, the patients record their health conditions in patients' log book. An android application had. Keywords: android application, diabetes 4.07 5.00 , 1. 285 . . 2573 435 . . 2552 558,156 7,019 [1] 15 7% [2

  12. Coal-log pipeline system development. Fifth quarterly report, August 25, 1991--November 25, 1991

    SciTech Connect (OSTI)

    Liu, H.

    1991-12-01

    Project tasks include: (1) Perform the necessary testing and development to demonstrate that the amount of binder in coal logs can be reduced to 8% or lower to produce logs with adequate strength to eliminate breakage during pipeline transportation, under conditions experienced in long distance pipeline systems. Prior to conducting any testing and demonstration, grantee shall perform an information search and make full determination of all previous attempts to extrude or briquette coal, upon which the testing and demonstration shall be based. (2) Perform the necessary development to demonstrate a small model of the most promising injection system for coal-logs, and tests the logs produced. (3) Conduct economic analysis of coal-log pipeline, based upon the work to date. Refine and complete the economic model. (VC)

  13. A deep high-resolution optical log of dust, ash, and stratigraphy in South Pole glacial ice

    E-Print Network [OSTI]

    Woschnagg, Kurt

    A deep high-resolution optical log of dust, ash, and stratigraphy in South Pole glacial ice N. E (2005), A deep high-resolution optical log of dust, ash, and stratigraphy in South Pole glacial ice

  14. Identifying Complex Fluvial Sandstone Reservoirs Using Core, Well Log, and 3D Seismic Data: Cretaceous Cedar Mountain and Dakota Formations,

    E-Print Network [OSTI]

    Seamons, Kent E.

    core, well-log, and 3D seismic data. The detailed stratigraphy and sedimentology of the interval were

  15. In cooperation with the University of Waterloo, Canada Application of Advanced Geophysical Logging Methods

    E-Print Network [OSTI]

    Singha, Kamini

    .S. Geological Survey #12;2 Figure 1. Location of Rocketdyne Santa Susana Field Laboratory and logged boreholes sandstone and mudstone at the Rocketdyne Santa Susana Field ,, in southern Ventura County, California (fig

  16. A comparison of logging while drilling (LWD) and wireline acoustic measurements

    E-Print Network [OSTI]

    Briggs, Victoria Alice, 1974-

    2006-01-01

    The instruments used to measure borehole acoustic data can be classified as either wireline or logging while drilling (LWD). The wireline tool measures formation speeds after the borehole is drilled, and the LWD tool ...

  17. Elimination of LWD (Logging-While-Drilling) Tool Modes Using Seismoelectric Data

    E-Print Network [OSTI]

    Zhan, Xin

    2006-01-01

    Borehole acoustic logging-while-drilling (LWD) for formation evaluation has become an indispensable part of hydrocarbon reservoir assessment (Tang et al., 2002; Cittá et al., 2004; Esmersoy et al., 2005). However, the ...

  18. A TALE OF TWO (SIMILAR) CITIES: Inferring City Similarity Through Geo-Spatial Query Log Analysis

    E-Print Network [OSTI]

    Cortes, Corinna

    a variety of more in-depth information about households. Advertisers often use the high-level information in the US. In contrast to the Census studies, passive studies of search engine query logs have become common

  19. Formation evaluation using wavelet analysis on logs of the Chinji and Nagri Formations, northern Pakistan 

    E-Print Network [OSTI]

    Tanyel, Emre Doruk

    2006-10-30

    The relatively new method of using wavelets in well log analysis is a powerful tool for defining multiple superimposed scales of lithic trends and contacts. Interpreting depositional processes associated with different scales of vertical variation...

  20. Navigation to Important information on Raiderlink/Webraider Portal: Log into Raiderlink/WebRaider Portal

    E-Print Network [OSTI]

    Rock, Chris

    Navigation to Important information on Raiderlink/Webraider Portal: Log into Raiderlink/WebRaider Portal: TTU and TTUSA employees: http://raiderlink.ttu.edu: HSC: http://webraider.ttuhsc.edu: Select TTU

  1. Sonic Logging in Deviated Boreholes in an Anisotropic Formation: Laboratory Study

    E-Print Network [OSTI]

    Zhu, Zhenya

    2006-01-01

    Deepwater field development requires drilling of deviated or horizontal wells. Most formations encountered can be highly anisotropic and P- and S-wave velocities vary with propagation directions. Sonic logs acquired in ...

  2. Temperatures and Natural Gamma-Ray Logs Obtained in 1986 from...

    Open Energy Info (EERE)

    and following drilling and possibly to ground shaking associated with present and past seismic activity in the Long Valley region.Natural gamma-ray logs obtained on four...

  3. High-energy photon transport modeling for oil-well logging

    E-Print Network [OSTI]

    Johnson, Erik D., Ph. D. Massachusetts Institute of Technology

    2009-01-01

    Nuclear oil well logging tools utilizing radioisotope sources of photons are used ubiquitously in oilfields throughout the world. Because of safety and security concerns, there is renewed interest in shifting to ...

  4. FrogLog 21 (3), Number 107 (July 2013) | 1 Survival Alliance

    E-Print Network [OSTI]

    Andreone, Franco

    FrogLog 21 (3), Number 107 (July 2013) | 1 Amphibian Survival Alliance Website Urban Amphibians and The Environment. Plant nursery and water quality Fifteen hundred essential oil plants belonging to the species

  5. Annual Logging Symposium, May 14-18, 2011 QUANTIFYING WETTABILITY ALTERATION DURING OIL-BASE

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper and efficiency of drilling, reduce borehole washouts, achieve better borehole control, and minimize the swelling

  6. Precise inversion of logged slownesses for elastic parameters in a gas shale formation

    E-Print Network [OSTI]

    Miller, Douglas E.

    Dipole sonic log data recorded in a vertical pilot well and the associated production well are analyzed over a 200×1100-ft section of a North American gas shale formation. The combination of these two wells enables angular ...

  7. Technical memorandum on analysis of the EU ETS using the community independent transaction log

    E-Print Network [OSTI]

    McGuinness, Meghan

    2007-01-01

    This memorandum provides an overview of three deficiencies within the current presentation of the Community Independent Transaction Log (CITL) data that have implications for researchers' ability to accurately analyze the ...

  8. Field Test of a Low-Frequency Sparker Source for Acoustic Waveform Logging

    E-Print Network [OSTI]

    Paillet, Frederick L.

    1984-01-01

    Low-frequency acoustic-energy sources for waveform logging have important applications in: 1) Verifying theoretical calculations; 2) generating tube waves in large-diameter boreholes; and 3) providing larger sample volumes ...

  9. Full Waveform Acoustic Logging - Where We Are, Where We Are Going

    E-Print Network [OSTI]

    Toksoz, M. Nafi

    1984-01-01

    We have now completed the second year of the Full Waveform Acoustic Logging Consortium. During these two years, we have developed a good understanding of seismic wave propagation in a borehole through both theoretical ...

  10. Reduced impact logging minimally alters tropical rainforest carbon and energy exchange

    E-Print Network [OSTI]

    2011-01-01

    Brazil | Amazon | land use | micrometeorology D eforestation in the tropics affects the land–atmosphere ex- change of trace gases and energyand energy (W·m ?2 ) ?uxes, calculated as (? = logged ? unlogged), in Tapajos National Forest, Para, Brazil.

  11. deep highresolution optical log dust, ash, and stratigraphy South Pole glacial

    E-Print Network [OSTI]

    Woschnagg, Kurt

    deep high­resolution optical log dust, ash, and stratigraphy South Pole glacial Bramall, Bay, Rohde, Price (2005), high­resolution optical dust, stratigraphy South Pole glacial Geophys. Res. Lett

  12. Transport coefficients in high temperature gauge theories: (I) Leading-log results

    E-Print Network [OSTI]

    Peter Arnold; Guy D. Moore; Laurence G. Yaffe

    2000-10-16

    Leading-log results are derived for the shear viscosity, electrical conductivity, and flavor diffusion constants in both Abelian and non-Abelian high temperature gauge theories with various matter field content.

  13. Results of investigations at the Zunil geothermal field, Guatemala: Well logging and brine geochemistry

    SciTech Connect (OSTI)

    Adams, A.; Dennis, B.; Van Eeckhout, E.; Goff, F.; Lawton, R.; Trujillo, P.E.; Counce, D.; Archuleta, J. (Los Alamos National Lab., NM (USA)); Medina, V. (Instituto Nacional de Electrificacion, Guatemala City (Guatemala). Unidad de Desarollo Geotermico)

    1991-07-01

    The well logging team from Los Alamos and its counterpart from Central America were tasked to investigate the condition of four producing geothermal wells in the Zunil Geothermal Field. The information obtained would be used to help evaluate the Zunil geothermal reservoir in terms of possible additional drilling and future power plant design. The field activities focused on downhole measurements in four production wells (ZCQ-3, ZCQ-4, ZCQ-5, and ZCQ-6). The teams took measurements of the wells in both static (shut-in) and flowing conditions, using the high-temperature well logging tools developed at Los Alamos National Laboratory. Two well logging missions were conducted in the Zunil field. In October 1988 measurements were made in well ZCQ-3, ZCQ-5, and ZCQ-6. In December 1989 the second field operation logged ZCQ-4 and repeated logs in ZCQ-3. Both field operations included not only well logging but the collecting of numerous fluid samples from both thermal and nonthermal waters. 18 refs., 22 figs., 7 tabs.

  14. Test Images

    E-Print Network [OSTI]

    Test Images. I hope to have a set of test images for the course soon. Some images are available now; some will have to wait until I can find another 100-200

  15. Response transforms from comparative study of commercial pulsed-neutron-capture logging systems

    SciTech Connect (OSTI)

    Salaita, G.N. (Chevron Oil Field Research Co., La Habra, CA (United States))

    1992-09-01

    This paper reports that three generations of Schlumberger's Thermal Decay Time (TDT{sup SM}) logging devices - viz., TDT-K, TDT-M, and TDT-P - along with an Atlas Wireline PDK-100{sup SM} system were run in a Saudi Aramco well. The wellbore (8 1/2 in. with 7-in. casing) penetrated a sequence of clean sand, shaly sand, and shale streaks as exhibited by the openhole natural gamma ray log. The initial wellbore fluid was diesel. The fluid was then changed to brines of 42,000 and 176,000 ppm NaCl, respectively. Three repeat passes at a logging speed of 900 ft/hr were obtained by each device for each borehole liquid. As a result of this extensive comparative study, a set of departure curves and mathematical transforms was developed primarily for standardizing the various Schlumberger tools to a common reference logging system and/or borehole environment. The transforms were used beneficially to determine residual oil saturation (ROS) from time-lapse logs in a Saudi Aramco reservoir.

  16. Filtrations in Dyson-Schwinger equations: next-to^{j} -leading log expansions systematically

    E-Print Network [OSTI]

    Olaf Krueger; Dirk Kreimer

    2015-02-11

    Dyson-Schwinger equations determine the Green functions $G^r(\\alpha,L)$ in quantum field theory. Their solutions are triangular series in a coupling constant $\\alpha$ and an external scale parameter $L$ for a chosen amplitude $r$, with the order in $L$ bounded by the order in the coupling. Perturbation theory calculates the first few orders in $\\alpha$. On the other hand, Dyson--Schwinger equations determine next-to$^{\\{\\mathrm{j}\\}}$-leading log expansions, $G^r(\\alpha,L) = 1 + \\sum_{j=0}^\\infty \\sum_{\\mathcal{M}} p_j^{\\mathcal{M}}\\alpha^j \\mathcal{M}(u)$. $\\sum_{\\mathcal{M}}$ sums a finite number of functions $\\mathcal{M}$ in $u = \\alpha L/2$. The leading logs come from the trivial representation $\\mathcal{M}(u) = \\begin{bsmallmatrix}\\bullet\\end{bsmallmatrix}(u)$ at $j=0$ with $p_0^{\\begin{bsmallmatrix}\\bullet\\end{bsmallmatrix}} = 1$. All non-leading logs are organized by the suppression in powers $\\alpha^j$. We describe an algebraic method to derive all next-to$^{\\{\\mathrm{j}\\}}$-leading log terms from the knowledge of the first $(j+1)$ terms in perturbation theory and their filtrations. This implies the calculation of the functions $\\mathcal{M}(u)$ and periods $p_j^\\mathcal{M}$. In the first part of our paper, we investigate the structure of Dyson-Schwinger equations and develop a method to filter their solutions. Applying renormalized Feynman rules maps each filtered term to a certain power of $\\alpha$ and $L$ in the log-expansion. Based on this, the second part derives the next-to$^{\\{\\mathrm{j}\\}}$-leading log expansions. Our method is general. Here, we exemplify it using the examples of the propagator in Yukawa theory and the photon self-energy in quantum electrodynamics. The reader may apply our method to any (set of) Dyson-Schwinger equation(s) appearing in renormalizable quantum field theories.

  17. Fourier sparsity, spectral norm, and the Log-rank conjecture Hing Yin Tsang*

    E-Print Network [OSTI]

    Xie, Ning

    Fourier sparsity, spectral norm, and the Log-rank conjecture Hing Yin Tsang* hytsang@cse.cuhk.edu.hk Abstract--We study Boolean functions with sparse Fourier spectrum or small spectral norm, and show for such functions is exactly the Fourier sparsity of f. Let d = deg2(f) be the F2-degree of f and DCC (f ) stand

  18. Eliciting Motivation Knowledge from Log Files towards Motivation Diagnosis for Adaptive Systems

    E-Print Network [OSTI]

    Cocea, Mihaela

    Eliciting Motivation Knowledge from Log Files towards Motivation Diagnosis for Adaptive Systems, Dublin 1, Ireland {mcocea, sweibelzahl}@ncirl.ie Abstract. Motivation is well-known for its importance a user model of the learner's motivation, especially if integrated with information about knowledge

  19. Annual Logging Symposium, June 21-24, 2009 INVERSION OF SECTOR-BASED LWD DENSITY MEASUREMENTS

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SPWLA 50th Annual Logging Symposium, June 21-24, 2009 1 INVERSION OF SECTOR-BASED LWD DENSITY-while-drilling (LWD) density measurements acquired in high-angle and horizontal (HA/HZ) wells. Our interpretation to increasing tool standoff in the upper sectors of the measurement. INTRODUCTION Conventional processing of LWD

  20. Annual Logging Symposium, June 4-7, 2006 ASSESSMENT OF SHOULDER-BED, INVASION, AND LAMINATION

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    Annual Logging Symposium held in Veracruz, Mexico, June 4-7, 2006. ABSTRACT We quantify the relative effects of shoulder beds, layer thickness, invasion, and sand-shale laminations on monopole and dipole soft and hard formations bounded by shale layers. The thickness of the formation is changed to consider

  1. Freezing Cells Make sure cells are in log phase of growth, ie. subconfluent

    E-Print Network [OSTI]

    Pike, Linda J.

    Freezing Cells Make sure cells are in log phase of growth, ie. subconfluent Protocol 1: 1. Wash cells and trypsinize as usual. 2. Spin down trypsinized cells at 1000 rpm in the tabletop centrifuge 3. Resuspend cells in 0.45 ml standard medium 4. Add 0.45 ml fetal calf serum 5. Add dropwise, 100 µl

  2. East Asian Governments Failing on Illegal Logging as Greenpeace Launches Global Paradise Forests Campaign

    E-Print Network [OSTI]

    East Asian Governments Failing on Illegal Logging as Greenpeace Launches Global Paradise Forests non-violent, creative confrontation to expose global environmental problems, and to force solutions Law Enforcement and Governance (FLEG) to put words into action and take steps to seriously address

  3. Surveys of the Logging Contractor Population 8 Southern States and Maine Cornelis F. de Hoop

    E-Print Network [OSTI]

    10.0 Surveys of the Logging Contractor Population ­ 8 Southern States and Maine by Cornelis F. de. Egan Associate Professor Department of Forest Management University of Maine Orono, ME 04469-5755 W. Thus, surveys of loggers in Maine and in eight southern states were conducted to gain additional

  4. Weekly Security Incident Log Period of Aug 12 -Aug 18, 2013

    E-Print Network [OSTI]

    2013-001248 THOMPSON ROAD Gas leak Security , Toronto Fire, Toronto Police, and Occupational Health and Safety responded to a report of a natural gas leak in the area of the Life Science BuildingWeekly Security Incident Log Period of Aug 12 - Aug 18, 2013 Incident No. Reported Date Building

  5. Weekly Security Incident Log Period of Feb 6 -Feb 12, 2012

    E-Print Network [OSTI]

    Gas leak Security and Toronto Fire responded to a report of a natural gas odour in B-wing. TorontoWeekly Security Incident Log Period of Feb 6 - Feb 12, 2012 Incident No. Reported Date Building\\Const. Security, York Fire Prevention and Toronto Fire responded to a fire alarm. The cause of the alarm

  6. Weekly Security Incident Log Period of Jul 9 -Jul 15, 2012

    E-Print Network [OSTI]

    and Safety responded to a report of a natural gas odour in the building. The building was checked and no natural gas was found. Toronto Fire determined that all was in order. 7/12/2012 07:31 AM HazardousWeekly Security Incident Log Period of Jul 9 - Jul 15, 2012 Incident No. Reported Date Building

  7. Weekly Security Incident Log Period of Apr 29 -May 5, 2013

    E-Print Network [OSTI]

    2013-000845 YORK LANES RETAIL Gas leak Security, Toronto Fire and Enbridge Gas responded to a report of a natural gas odour in the building. The source of the odour was located in a restaurant kitchen. EnbridgeWeekly Security Incident Log Period of Apr 29 - May 5, 2013 Incident No. Reported Date Building

  8. An Approach for Mining Web Service Composition Patterns from Execution Logs

    E-Print Network [OSTI]

    Zou, Ying

    1 An Approach for Mining Web Service Composition Patterns from Execution Logs Ran Tang and Ying Zou.zou}@queensu.ca Abstract-- A service-oriented application is composed of multiple web services to fulfill complex functionality that cannot be provided by individual web service. The combination of services is not random

  9. How do I enroll? 1. Log into WSU's online portal (Academica).

    E-Print Network [OSTI]

    Finley Jr., Russell L.

    How do I enroll? 1. Log into WSU's online portal (Academica). 2 by noon the following business day. 8. Check your account in the online portal in WSU's online portal (Academica). The first payment may include non-deferred fees. What if I add

  10. Parsing the WSJ using CCG and Log-Linear Models Stephen Clark

    E-Print Network [OSTI]

    Curran, James R.

    of Edinburgh 2 Buccleuch Place, Edinburgh, UK stephen.clark@ed.ac.uk James R. Curran School of Information and Steedman, 2002; Hockenmaier, 2003b). In Clark and Curran (2003) we argued for the use of log-linear parsing (Nocedal and Wright, 1999). And finally, we show that the parsing algo- rithm described in Clark and Curran

  11. SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing Shale Andrew C typing method for application in hydrocarbon-bearing shale (specifically source rock) reservoirs using-hoc correlations where the interpretation becomes a core matching exercise. Scale effects on measurements

  12. ANALYSIS OF PHYSICAL FACTORS AFFECTING ILLEGAL LOGGING OF TROPICAL FOREST OF BERAU, EAST KALIMANTAN, INDONESIA

    E-Print Network [OSTI]

    , INDONESIA USING REMOTE SENSING AND GIS Anita Zaitunah Yousif Ali Hussin Ali Sharifi Department of Natural pollution and storms. The annual deforestation rate in Indonesia was 1.8 million ha between 1985 and 1997 of forests and cutting in unauthorised areas. In Indonesia, there is a smuggling of illegal logs

  13. April 2002 Page 1 of 6 Export credits: Fuelling illegal logging

    E-Print Network [OSTI]

    April 2002 Page 1 of 6 Export credits: Fuelling illegal logging Export Credit Agencies (ECAs are ECAs? Export Credit Agencies and Investment Insurance Agencies, commonly known as ECAs, are public and investment ­ nearly 10 percent of world exports. Longer term loans and guarantees by ECAs increased four

  14. Log-Gamma Polymer Free Energy Fluctuations via a Fredholm Determinant Identity

    E-Print Network [OSTI]

    Borodin, Alexei

    We prove that under n[superscript 1/3] scaling, the limiting distribution as n ? ? of the free energy of Seppalainen’s log-Gamma discrete directed polymer is GUE Tracy-Widom. The main technical innovation we provide is a ...

  15. Oblivious RAM with O((log N)3 ) Worst-Case Cost

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Oblivious RAM with O((log N)3 ) Worst-Case Cost Elaine Shi PARC/UC Berkeley T-H. Hubert Chan HKU applications. This paper proposes novel O-RAM con- structions that achieves poly-logarithmic worst-case cost in outsourced storage applications. Not surprisingly, the client has to pay a certain cost in order to hide its

  16. Annual Logging Symposium, June 3-6, 2007 COMBINED INVERSION OF BOREHOLE RESISTIVITY AND SONIC

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    n wS . In other words, resistivity measurements alone can not render separate estimates of w saturation, wS , and porosity, , play important roles in well-log interpretation and formation evaluation for fluid substitution in the study of seismic properties of rocks. Generally, wS is computed using Archie

  17. A Principled Approach to Mining From Noisy Logs Using Heuristics Miner

    E-Print Network [OSTI]

    Tino, Peter

    A Principled Approach to Mining From Noisy Logs Using Heuristics Miner Philip Weber, Behzad Bordbar Miner algorithm, and demonstrate on a simple example. We show that for a given model it is possible in the the robustness of Heuristics Miner to different types of noise. I. INTRODUCTION Process mining is the learning

  18. Log-Domain Circuit Models of Chemical Reactions Soumyajit Mandal and Rahul Sarpeshkar

    E-Print Network [OSTI]

    Sarpeshkar, Rahul

    Log-Domain Circuit Models of Chemical Reactions Soumyajit Mandal and Rahul Sarpeshkar Department to networks of chemical reactions. Our circuits can be used for transient and steady-state simulations the energy barrier of a chemical reaction, exponentially changing its speed. In an analogous fashion, gate

  19. DistributionFree Multivariate Process Control Based On LogLinear Modeling School of Statistics

    E-Print Network [OSTI]

    Qiu, Peihua

    Distribution­Free Multivariate Process Control Based On Log­Linear Modeling Peihua Qiu School the process measurement is multivariate. In the literature, most existing multivariate SPC procedures assume that the in­control distribution of the multivariate process measurement is known and it is a Gaussian

  20. CareLog: A Selective Archiving Tool for Behavior Management in Schools

    E-Print Network [OSTI]

    Hayes, Gillian R.

    to five design principles that governed the development of CareLog. We present results from a five- month]. Such behaviors can disrupt the educational activities for the student with the behavior disorder other disabilities, frequently Autism Spectrum Disorder (ASD) but also Down's Syndrome, Fragile X

  1. Annual Logging Symposium, June 1620, 2012 IMPROVED ASSESSMENT OF IN-SITU FLUID SATURATION WITH

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SATURATION WITH MULTI-DIMENSIONAL NMR MEASUREMENTS AND CONVENTIONAL WELL LOGS Kanay Jerath and Carlos Torres saturating fluids. However, often there is ambiguity as to whether fluids appraised with NMR measurements-filtrate invasion, the NMR response of virgin reservoir fluids can be masked by that of mud filtrate. In order

  2. LogStore: Toward Energy-Proportional Storage Servers Wei Zheng Ana Paula Centeno Frederic Chong

    E-Print Network [OSTI]

    Bianchini, Ricardo

    LogStore: Toward Energy-Proportional Storage Servers Wei Zheng Ana Paula Centeno Frederic Chong,anapaula,ricardob}@cs.rutgers.edu chong@cs.ucsb.edu ABSTRACT Storage servers consume significant amounts of energy and are highly non-energy throughput. Categories and Subject Descriptors D.4 [Operating systems]: Storage management Keywords Energy

  3. On the optimal wealth process in a log-normal market

    E-Print Network [OSTI]

    Knopf, Dan

    On the optimal wealth process in a log-normal market: Applications to risk management Phillip Monin and portfolio processes for different utility functions are related through a deter- ministic transformation with respect to the cumulative excess stock return, time, and market parameters. We conclude with a study

  4. Learn from Web Search Logs to Organize Search Results Xuanhui Wang

    E-Print Network [OSTI]

    Zhai, ChengXiang

    and Subject Descriptors: H.3.3 [Informa- tion Search and Retrieval]: Clustering, Search process General TermsLearn from Web Search Logs to Organize Search Results Xuanhui Wang Department of Computer Science Effective organization of search results is critical for improv- ing the utility of any search engine

  5. Upward pressure on timber prices eased as logging conditions improved and lumber &

    E-Print Network [OSTI]

    Upward pressure on timber prices eased as logging conditions improved and lumber & panel prices plummeted back to where they were before the spring run-ups. Overall, timber prices were higher than the prices a year ago. Lumber imports from Canada increased in June due to the temporary re- moval

  6. Small Log Conference Creating Capacity to Compete Coeur d'Alene, Idaho, USA, 1 April 2005

    E-Print Network [OSTI]

    Assessment · UNECE Timber Committee market forecasts · UNECE/FAO Timber Bulletin "Forest products annual Forest Sector Outlook Study · FAO State of the World's Forests, 2005 #12;Small Log Conference ­ Creating countries · Low value · Modern wood energy ­ Small international trade ­ Growing market ­ Policy push

  7. On the possible exceptions for the transcendence of the log-gamma function at rational values and its consequences for the transcendence of $ \\log{\\pi} $ and $ \\pi e $

    E-Print Network [OSTI]

    Lima, F M S

    2009-01-01

    In a recent work published in this journal [JNT \\textbf{129}, 2154 (2009)], it has been argued that the numbers $\\log{\\Gamma(x)} + \\log{\\Gamma(1-x)}$, $x$ being a rational number between 0 and 1, are transcendental with at most \\emph{one} possible exception, but the proof presented there is \\emph{incorrect}. Here in this paper, I point out the mistake committed in that proof and I present a theorem that establishes the transcendence of those numbers, with at most \\emph{two} possible exceptions. This yields a criteria for the algebraicity of $\\log{\\pi}$, a number that presently is not known even to be irrational. I also show that each pair $\\{\\log{[\\pi/\\sin(\\pi x)]}, \\log{[\\pi/\\sin(\\pi y)]}\\}$ contains at least one transcendental number, e.g. $\\{\\log{\\pi}, \\log{(2 \\pi)} \\}$. With respect to this pair, I show that if $ \\log{(k \\pi)}$ is algebraic for some non-zero algebraic $k$ then the product $\\pi e$, another number whose irrationality is not proved, has to be transcendental.

  8. Image alignment

    DOE Patents [OSTI]

    Dowell, Larry Jonathan

    2014-04-22

    Disclosed is a method and device for aligning at least two digital images. An embodiment may use frequency-domain transforms of small tiles created from each image to identify substantially similar, "distinguishing" features within each of the images, and then align the images together based on the location of the distinguishing features. To accomplish this, an embodiment may create equal sized tile sub-images for each image. A "key" for each tile may be created by performing a frequency-domain transform calculation on each tile. A information-distance difference between each possible pair of tiles on each image may be calculated to identify distinguishing features. From analysis of the information-distance differences of the pairs of tiles, a subset of tiles with high discrimination metrics in relation to other tiles may be located for each image. The subset of distinguishing tiles for each image may then be compared to locate tiles with substantially similar keys and/or information-distance metrics to other tiles of other images. Once similar tiles are located for each image, the images may be aligned in relation to the identified similar tiles.

  9. Using Visualizations to Monitor Changes and Harvest Insights from a Global-Scale Logging Infrastructure at Twitter

    E-Print Network [OSTI]

    Daume III, Hal

    on three platforms: strawberry, coconut, and banana. Log events follow a six-level naming hierarchy (client:page:section:component:element:action). Here, we see that the event strawberry:search:personal:-:-:impression in- creased in frequency compared strawberry:inbox:inbox:conversation:-:impression dropped slightly. Abstract-- Logging user activities

  10. Page-Differential Logging: An Efficient and DBMS-Independent Approach for Storing Data into Flash Memory

    E-Print Network [OSTI]

    Whang, Kyu-Young

    Page-Differential Logging: An Efficient and DBMS- Independent Approach for Storing Data into Flash or from log-based ones that keep track of the history of all the changes in a page. Our method allows.e., it is DBMS-independent. Experimental results show that the proposed method is superior in I/O performance

  11. Outline Directed polymers Log-gamma polymer KPZ equation Fluctuation exponents for certain 1+1 dimensional

    E-Print Network [OSTI]

    Seppäläinen, Timo

    Outline Directed polymers Log-gamma polymer KPZ equation Fluctuation exponents for certain 1+1 dimensional directed polymers Timo Sepp¨al¨ainen Department of Mathematics University of Wisconsin-Madison MSRI December 2010 Fluctuation exponents for polymers 1/36 #12;Outline Directed polymers Log

  12. Log Summarization

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting Hotel - Hyatt

  13. Outage Log

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEYI/O Streams forOrhan Kizilkaya, Ph.D.Our Team Our Team OurOurOut

  14. A Uniqueness Result for Minimizers of the 1D Log-gas Renormalized Energy

    E-Print Network [OSTI]

    Thomas Leblé

    2014-08-10

    Sandier and Serfaty studied the one-dimensional Log-gas model, in particular they gave a crystallization result by showing that the one-dimensional lattice $\\mathbb{z}$ is a minimizer for the so-called renormalized energy which they obtained as a limit of the $N$-particle Log-gas Hamiltonian for $N \\to \\infty$. However, this minimizer is not unique among infinite point configurations (for example small perturbations of $\\mathbb{z}$ leave the renormalized energy unchanged). In this paper, we establish that uniqueness holds at the level of (stationary) point processes, the only minimizer being given by averaging $\\mathbb{z}$ over a choice of the origin in $[0,1]$. This is proved by showing a quantitative estimate on the two-point correlation function of a process in terms of its renormalized energy.

  15. Quantification of Wellbore Leakage Risk Using Non-destructive Borehole Logging Techniques

    SciTech Connect (OSTI)

    Duguid, Andrew; Butsch, Robert; Cary, J.; Celia, Michael; Chugunov, Nikita; Gasda, Sarah; Hovorka, Susan; Ramakrishnan, T. S.; Stamp, Vicki; Thingelstad, Rebecca; Wang, James

    2014-08-29

    Well integrity is important at all potential CCS locations and may play a crucial role establishing leakage risk in areas where there is a high density of existing wells that could be impacted by the storage operations including depleted petroleum fields where EOR or CCS will occur. To address a need for risk quantification methods that can be directly applied to individual wells using borehole logging tools a study was conducted using data from five wells in Wyoming. The objectives of the study were: Objective 1: Develop methods to establish the baseline flow parameters (porosity and permeability or mobility) from individual measurements of the material properties and defects in a well. Objective 2: Develop a correlation between field flow-property data and cement logs that can be used to establish the flow-properties of well materials and well features using cement mapping tools. Objective 3: Establish a method that uses the flow-property model (Objective 2) to analyze the statistical uncertainties associated with individual well leakage that can provide basis for uncertainty in risk calculations. The project objectives were met through the logging of five wells in Carbon and Natrona County Wyoming to collect data that was used to estimate individual and average well flow properties and model the results using ultrasonic data collected during the logging. Three of the five wells provided data on point and average flow properties for well annuli. Data from the other two wells were used to create models of cement permeability and test whether information collected in one well could be used to characterize another well. The results of the in-situ point measurements were confirmed by the lab measurements sidewall cores collected near the same depths Objective 1 was met using the data collected through logging, testing, and sampling. The methods were developed that can establish baseline flow parameters of wells by both point and average test methods. The methods to estimate the flow properties modeling of point pressure tests, modeling of vertical interference tests, and laboratory measurement of cased-hole sidewall cores The wells were in sufficiently good shape to allow the development of the characterization methods while still having enough defects to study differences in results as they relate to well integrity. Samples and tests analyzed from three of five wells studied in showed the cements were largely intact and had not degraded from exposure native brines. Log results taken in conjunction with the core measurements indicate that interfaces and/or problems with cement placement due to eccentering provide preferential flow paths for fluids, which can increase the effective permeability of the barrier several orders of magnitude above the permeability of intact cement. The results of the maps created using logging tools indicating that the cement condition and bond are generally good identify a need for more research to understand how logs can be used to predicteffective well permeabilities such as those measured by the VITs in this study.

  16. The high-energy radiation pattern from BFKLex with double-log collinear contributions

    E-Print Network [OSTI]

    Chachamis, G

    2015-01-01

    We study high-energy jet production in the multi-Regge limit making use of the Monte Carlo event generator BFKLex which includes collinear improvements in the form of double-log contributions as presented in [1]. Making use of the anti-kt jet algorithm in the FastJet implementation, we present results for the average transverse momentum and azimuthal angle of the produced jets when two tagged forward/backward jets are present in the final state. We also introduce a new observable which accounts for the average rapidity separation among subsequent emissions. Results are presented, for comparison, at leading order and next-to-leading order, with the resummation of collinear double logs proposed in [2].

  17. Airborne LiDAR Detects Selectively Logged Tropical Forest Even in an Advanced Stage of Recovery

    E-Print Network [OSTI]

    Kent, Rafi; Lindsell, Jeremy A.; Laurin, Gaia Vaglio; Valentini, Riccardo; Coomes, David A.

    2015-01-01

    logged tropical forests: the attained and the attainable. Conserv. Lett. 2012, 5, 296–303. 10. Silver, W. L.; Ostertag, R.; Lugo, a. E. The Potential for Carbon Sequestration Through Reforestation of Abandoned Tropical Agricultural and Pasture Lands... be of high conservation value [2,7–9] and act as globally-important carbon sinks [9–12]. However, there is much uncertainty regarding the changing extent of regenerating forests, their rate and stage of recovery, and the influence of recovery on further...

  18. An O(M(n) log n) algorithm for the Jacobi symbol

    E-Print Network [OSTI]

    Zimmermann, Paul

    An O(M(n) log n) algorithm for the Jacobi symbol Richard P. Brent1 and Paul Zimmermann2 1 January 2010 Abstract. The best known algorithm to compute the Jacobi symbol of two n-bit integers runs Introduction We want to compute the Jacobi symbol3 (b|a) for n-bit integers a and b, where a is odd positive

  19. Evaluation of Non-Nuclear Techniques for Well Logging: Final Report

    SciTech Connect (OSTI)

    Bond, Leonard J.; Griffin, Jeffrey W.; Harris, R. V.; Denslow, Kayte M.; Moran, Traci L.

    2011-08-01

    The focus of this study is the understanding of the technical obstacles that hinder the replacement of and the disadvantages from the loss of extensive interpretation experience based on data accumulated with AmBe. Enhanced acoustic and electromagnetic sensing methods in combination with non-isotope-based well logging techniques have the potential to complement and/or replace existing isotope-based techniques, providing the opportunity to reduce oil industry dependence on isotopic sources such as AmBe.

  20. DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act.

    E-Print Network [OSTI]

    1 DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act. DATE. of Bolivar St. A-005-10 Slip and Fall 1-18-10 Signal 21 425 S. Roman St. A-006-10 Keep Off Property 1 1100 Florida Ave. A-010-10 Vehicle Damage 1-25-10 Signal 21 425 S. Roman St. A-011-10 Power Outage 1

  1. DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act.

    E-Print Network [OSTI]

    DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act. DATEB 425 S. Roman St. A-016-13 Theft of bicycle 1/23/13 Signal 21 1900 Perdido St. A-017-13 Medical With The Student Right To Know Act. DATE OFFENSE LOCATION ITEM NUMBER COMMENTS 2/1/13 Signal 21 1100 Florida Ave. B

  2. DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act.

    E-Print Network [OSTI]

    1 DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act. DATE. Roman St. A-008-09 Parked car rolls back into another parked car 1-23-09 Signal 21L 1100 Florida Ave. A With The Student Right To Know Act. DATE OFFENSE LOCATION ITEM NUMBER COMMENTS 2-27-09 Signal 21 1100 Florida Ave

  3. DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act.

    E-Print Network [OSTI]

    DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act. DATE-12 Stolen Bike 1/17/12 Signal 21 425 S. Roman St. A-009-12 Damage to Vehicle 1/18/12 Signal 21 1100 Florida/25/12 Signal 24 1900 Gravier St. A-016-12 Medical Emergency 1/30/12 Signal 20 425 S. Roman St. A-017-12 Vehicle

  4. DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act.

    E-Print Network [OSTI]

    1 DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act. DATE Gravier St. A-008-11 Subject allegedly stalking employee 1-19-11 Signal 20 Tulane and Roman Sts. A-009 (Perdido Lot) A-012-11 Auto accident 1/25/11 Signal 21L 136 S. Roman St. A-013-11 Lost or stolen internet

  5. DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act.

    E-Print Network [OSTI]

    1 DAILY CRIME LOG This Information Is Posted In Compliance With The Student Right To Know Act. DATE-08 Student hit parked vehicles 3-6-08 Signal 21 425 S. Roman St. C-001-08 Damage to parked vehicle 3-7-08 Signal 21 1900 Perdido St. C-002-08 Damage to vehicle 3-7-08 Signal 21 425 S. Roman St. C-003-08 Damage

  6. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 102, NO. B8, PAGES 18,391-18,403, AUGUST 10, 1997 Spectral analyses of the KTB sonic and density logs

    E-Print Network [OSTI]

    Jones, Alan G.

    , coherences and transfer functions ofthe Gennan Continental Deep Drilling Program (KTB) sonic and density logs is that fluctuations in the physical logs in the intermediate wavelength range (-10-150 m) are dominated by cracks ofborehole logs. Traditionally, deep boreholes (1000 m or deeper) in crystal- line rocks were drilled

  7. Inversion-based method for interpretation of logging-while-drilling density measurements acquired in high-angle and horizontal wells

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    Inversion-based method for interpretation of logging-while-drilling density measurements acquired-based inversion method to improve the petrophysical interpretation of logging-while-drilling density measurements measurements. INTRODUCTION Conventional processing of logging-while-drilling (LWD) den- sity measurements

  8. Annual Logging Symposium, June 3-6, 2007 QUANTITATIVE STUDIES OF RELATIVE DIP ANGLE AND BED -

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    AND BED - THICKNESS EFFECTS ON LWD DENSITY IMAGES ACQUIRED IN HIGH-ANGLE AND HORIZONTAL WELLS E.A. Uzoh, A (LWD) density images acquired in high-angle and horizontal (HA/HZ) wells can reveal much about to quantify the influence of relative dip angle and bed thickness on LWD density images acquired in HA

  9. Investigation of the high-frequency wavefield of an off-center monopole acoustic logging-while-drilling tool

    E-Print Network [OSTI]

    Wang, Hua

    During logging-while-drilling (LWD) operations, complex drill string movements and the weight of the drill pipe often lead to a measurement tool that is not centralized. Therefore, studies of the response of an off-center ...

  10. Supplementary Materials Table 1: Simulated log-normal survival data marginal posterior probability of inclusion of relevant

    E-Print Network [OSTI]

    Vannucci, Marina

    .1835 Table 1: Simulated log-normal survival data: Marginal posterior probabilities of inclusion of rele- vant: Marginal posterior probabilities of inclusion of rele- vant variables under different maximum correlation

  11. Method of assaying uranium with prompt fission and thermal neutron borehole logging adjusted by borehole physical characteristics. [Patient application

    DOE Patents [OSTI]

    Barnard, R.W.; Jensen, D.H.

    1980-11-05

    Uranium formations are assayed by prompt fission neutron logging techniques. The uranium in the formation is proportional to the ratio of epithermal counts to thermal or epithermal dieaway. Various calibration factors enhance the accuracy of the measurement.

  12. Numerical simulation of borehole acoustic logging in the frequency and time domains with hp-adaptive finite elements

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    for Computational Engineering and Sciences (ICES), The University of Texas at Austin, 201 East 24th Street, ACES and for the improvement of acoustic logging techniques used by oil- and oil-service companies to detect and quantify

  13. Student Administration System Q&A: Logging into the SA System with NetID Updated 08/15/2013

    E-Print Network [OSTI]

    Alpay, S. Pamir

    Student Administration System Q&A: Logging into the SA System with NetID Updated 08/15/2013 Q&A: Logging into the Student Administration (SA) System with Your NetID (Effective 08/09/2013) Q: What-numeric NetID and NetID password. Q: Who is not affected by this change? A: Administrative users who currently

  14. Hydrogeochemical investigations in support of well logging operations at the Zunil geothermal field, Guatemala

    SciTech Connect (OSTI)

    Adams, A.; Golf, F.; Trujillo, P.E. Jr.; Counce, D.; Archuleta, J.; Dennis, B. (Los Alamos National Lab., NM (USA)); Medina, V. (Unidad de Desarrollo Geotermico, Guatemala City (Guatemala). Inst. Nacional de Electrificacion)

    1990-01-01

    A suite of 41 thermal and nonthermal waters in the Zunil-Quetzaltenango region, Guatemala, were collected as part of a well logging operation conducted by the Instituto Nacional de Electrificacion (INDE) and Los Alamos National Laboratory. Both in situ and weirbox samples were collected in the Zunil geothermal field. The various data suggest that the reservoir at Zunil is geochemically inhomogeneous. Stable isotope data suggest recharge to the field comes primarily from the north and east whereas tritium data indicate that the reservoir waters may be 500 to 7500 years old. 14 refs., 4 figs., 3 tabs.

  15. A UNIX security log analyzer based on from/to access matrix 

    E-Print Network [OSTI]

    El-Haj Mahmoud, Samer Ahmad

    2002-01-01

    messages do not include the year. Hostname ? i [Apr 8 13:53:38] [anne] Date & Time / Message login[28741]: F A I L E D L O G I N 3 F R O M susan.kimmel.edu FOR bourne 1 V i Service name and process id Figure 3: Format of Syslog Messages 1...A UNIX SECURITY LOG ANALYZER BASED ON FROM/TO ACCESS MATRIX A Thesis by S A M E R A H M A D E L - H A J M A H M O U D Submitted to the Office of Graduate Studies of Texas A & M University in partial fulfillment of the requirements...

  16. Catalog of borehole lithologic logs from the 600 Area, Hanford Site

    SciTech Connect (OSTI)

    Fecht, K R; Lillie, J T

    1982-03-01

    Rockwell Hanford Operations (Rockwell) geoscientists are studying the Hanford Site subsurface environment to assure safe management operations, disposal, and storage of radioactive waste. As part of this effort, geoscientists have collected geotechnical data from about 3000 boreholes drilled on the Hanford Site since the early 1900s. These boreholes have been used for subsurface geologic, hydrologic, and engineering investigation, water supply, ground-water monitoring, and natural gas production. This report is a catalog of all obtainable (about 800) lithologic logs from boreholes in a portion of the Hanford Site known as the 600 Area.

  17. Core Log Valles Caldera No. 2A, New Mexico | 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 SECTIONRobertsdale, Alabama (Utility Company)| Open(Evans,Oregon:Volcano, Hawaii | Open EnergyLithology,Log

  18. Logging into Deltek Time & Expense (T&E) | The Ames Laboratory

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting HotelLogging into

  19. InSAR | 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 APPENDIXsource History View NewGuam:on Openei |source History ViewInQbator Jump to:

  20. Novel higher order regularisation methods for image reconstruction

    E-Print Network [OSTI]

    Papafitsoros, Konstantinos

    2015-01-06

    norm of the difference Tu ? f , ´ ? |Tu ? f |dx leads to more efficient restorations. In the case of Poisson noise, the Kullback–Leibler divergence of Tu and f , ´ ?(Tu ? f log Tu)dx is the most suitable choice [LCA07, BSW+13, SBJM09] while the supremum... numer- ous applications in the field, as the edge preservation ability made it quite an appealing tool. These applications cover a wide area, from image denoising [ROF92, CL97, Nik04, LCA07, BC98, CKS01, DHKS10, Pas12a], image deblurring [DS96, CW98, WYZ...

  1. Scalable Replay with Partial-Order Dependencies for Message-Logging Fault Tolerance

    SciTech Connect (OSTI)

    Lifflander, Jonathan; Meneses, Esteban; Menon, Harshita; Miller, Phil; Krishnamoorthy, Sriram; Kale, Laxmikant

    2014-09-22

    Deterministic replay of a parallel application is commonly used for discovering bugs or to recover from a hard fault with message-logging fault tolerance. For message passing programs, a major source of overhead during forward execution is recording the order in which messages are sent and received. During replay, this ordering must be used to deterministically reproduce the execution. Previous work in replay algorithms often makes minimal assumptions about the programming model and application in order to maintain generality. However, in many cases, only a partial order must be recorded due to determinism intrinsic in the code, ordering constraints imposed by the execution model, and events that are commutative (their relative execution order during replay does not need to be reproduced exactly). In this paper, we present a novel algebraic framework for reasoning about the minimum dependencies required to represent the partial order for different concurrent orderings and interleavings. By exploiting this theory, we improve on an existing scalable message-logging fault tolerance scheme. The improved scheme scales to 131,072 cores on an IBM BlueGene/P with up to 2x lower overhead than one that records a total order.

  2. Evaluation of Non-Nuclear Techniques for Well Logging: Technology Evaluation

    SciTech Connect (OSTI)

    Bond, Leonard J.; Denslow, Kayte M.; Griffin, Jeffrey W.; Dale, Gregory E.; Harris, Robert V.; Moran, Traci L.; Sheen, David M.; Schenkel, Thomas

    2010-11-01

    This report presents an initial review of the state-of-the-art nuclear and non-nuclear well logging methods and seeks to understand the technical and economic issues if AmBe, and potentially other isotope sources, are reduced or even eliminated in the oil-field services industry. Prior to considering alternative logging technologies, there is a definite need to open up discussions with industry regarding the feasibility and acceptability of source replacement. Industry views appear to range from those who see AmBe as vital and irreplaceable to those who believe that, with research and investment, it may be possible to transition to electronic neutron sources and employ combinations of non-nuclear technologies to acquire the desired petro-physical parameters. In one sense, the simple answer to the question as to whether petro-physical parameters can be sensed with technologies other than AmBe is probably "Yes". The challenges come when attention turns to record interpretation. The many decades of existing records form a very valuable proprietary resource, and the interpretation of subtle features contained in these records are of significant value to the oil-gas exploration community to correctly characterize a well. The demonstration of equivalence and correspondence/correlation between established and any new sensing modality, and correlations with historic records is critical to ensuring accurate data interpretation. Establishing the technical basis for such a demonstration represents a significant effort.

  3. Going off grid: Computationally efficient inference for log-Gaussian Cox processes

    E-Print Network [OSTI]

    Simpson, Daniel; Lindgren, Finn; Sørbye, Sigrunn; Rue, Håvard

    2011-01-01

    In this paper we introduce a new method for performing computational inference on log-Gaussian Cox processes (LGCP). Contrary to current practice, we do not approximate by a counting process on a partition of the domain, but rather attack the point process likelihood directly. In order to do this, we use the continuously specified Markovian random fields introduced by \\citet{Lindgren2011}. The inference is performed using the \\texttt{R-INLA} package of \\citet{art451}, which allows us to perform fast approximate inference on quite complicated models. The new method is tested on a real point pattern data set as well as two interesting extensions to the classical LGCP framework. The first extension considers the very real problem of variable sampling effort throughout the observation window and implements the method of \\citet{Chakraborty2011}. The second extension moves beyond what is possible with current techniques and constructs a log-Gaussian Cox process on the world's oceans. Code for the examples can be fo...

  4. On log flat descent Luc Illusie, Chikara Nakayama, and Takeshi Tsuji

    E-Print Network [OSTI]

    Illusie, Luc

    to the image (resp. it satisfies P = (hgp )-1 (Q) in Pgp ). A kummer homomorphism of fs monoids is exact. We

  5. Imaging Scatterometry

    E-Print Network [OSTI]

    Madsen, Morten Hannibal

    2015-01-01

    We present an optical metrology system for characterization of topography of micro/nano-structures on a surface or embedded in a semi-transparent material. Based on the principles of scatterometry, where the intensity of scattered light is used as a 'fingerprint' to reconstruct a surface, this new imaging scatterometer can easily find areas of interest on the cm scale and measure multiple segments simultaneously. The imaging scatterometer measures structural features, such as height, width, and sidewall angle of a grating locally on few um2 areas with nm resolution. We demonstrate two imaging scatterometers, one built into an optical microscope and one in a split configuration. The two scatterometers are targeted characterization of mm2 and cm2 areas, respectively, and both setups are validated using nano-textured samples.

  6. Coal log pipeline research at the University of Missouri. 4th Quarterly report for 1994, October 1, 1994--December 31, 1994

    SciTech Connect (OSTI)

    Liu, H.; Wilson, J.W.

    1995-06-01

    Several factors involved in coal log fabrication, storage and handling, such as curing time, aspect ratio and particle size distribution, were evaluated during the fourth quarter of 1994. When Orimulsion is used for coal log fabrication, a certain period of time is required to build up the strength of coal log. From the test results obtained, the longer the curing period the greater the wear resistance of the coal log. From previous studies, the coal log length to diameter ratio (aspect) was found to be an important factor affecting coal log performance during the pipeline degradation test. From the 2 inches pipeline degradation test results, coal logs with aspect ratios ranging from 1.6 to 2.2 traveled in a more stable manner, and had lower weight loss than coal logs with aspect ratios less than 1.6. The influence of particle size on the performance of a coal log was evaluated to determine the optimum particle size for coal log fabrication, based on practical and economical considerations.

  7. NETL CT Imaging Facility

    ScienceCinema (OSTI)

    None

    2014-05-21

    NETL's CT Scanner laboratory is equipped with three CT scanners and a mobile core logging unit that work together to provide characteristic geologic and geophysical information at different scales, non-destructively.

  8. NETL CT Imaging Facility

    SciTech Connect (OSTI)

    2013-09-04

    NETL's CT Scanner laboratory is equipped with three CT scanners and a mobile core logging unit that work together to provide characteristic geologic and geophysical information at different scales, non-destructively.

  9. Log-normal distribution based EMOS models for probabilistic wind speed forecasting

    E-Print Network [OSTI]

    Baran, Sándor

    2014-01-01

    Ensembles of forecasts are obtained from multiple runs of numerical weather forecasting models with different initial conditions and typically employed to account for forecast uncertainties. However, biases and dispersion errors often occur in forecast ensembles, they are usually under-dispersive and uncalibrated and require statistical post-processing. We present an Ensemble Model Output Statistics (EMOS) method for calibration of wind speed forecasts based on the log-normal (LN) distribution, and we also show a regime-switching extension of the model which combines the previously studied truncated normal (TN) distribution with the LN. Both presented models are applied to wind speed forecasts of the eight-member University of Washington mesoscale ensemble, of the fifty-member ECMWF ensemble and of the eleven-member ALADIN-HUNEPS ensemble of the Hungarian Meteorological Service, and their predictive performances are compared to those of the TN and general extreme value (GEV) distribution based EMOS methods an...

  10. Implementation of the Log-Conformation Formulation for Two-Dimensional Viscoelastic Flow

    E-Print Network [OSTI]

    Jensen, K E; Okkels, F

    2015-01-01

    We have implemented the log-conformation method for two-dimensional viscoelastic flow in COMSOL, a commercial high-level finite element package. The code is verified for an Oldroyd-B fluid flowing past a confined cylinder. We are also able to describe the well-known bistability of the viscoelastic flow in a cross-slot geometry for a FENE-CR fluid, and we describe the changes required for performing simulations with the Phan-Thien-Tanner (PTT), Giesekus and FENE-P models. Finally, we calculate the flow of a FENE-CR fluid in a geometry with three in- and outlets. The implementation is included in the supplementary material, and we hope that it can inspire new as well as experienced researchers in the field of differential constitutive equations for viscoelastic flow.

  11. 1. c) For all five types, the distribution is quite symmetric. Hearthlog typically burns the longest, with a mean of about 2:40. Wax Logs and Duraflame have a mean about 10 minutes lower. Hot

    E-Print Network [OSTI]

    Preston, Scott

    the longest, with a mean of about 2:40. Wax Logs and Duraflame have a mean about 10 minutes lower. Hot Logs:15. For all but Wax Logs, the distributions have similar variability ­ each has a standard deviation around 9 minutes. Wax Logs burn more consistently near the mean time ­ the standard deviation is just over 5

  12. Nuclear Imaging | Jefferson Lab

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

    Research Jefferson Lab's Radiation Detector and Imaging Group Members of Jefferson Lab's Radiation Detector & Medical Imaging Group design and build unique imaging devices based on...

  13. 9/17/12 Lessons from the US: stopping illegal logging benefits both sides of politics 1/3theconversation.edu.au/lessons-from-the-us-stopping-illegal-logging-benefits-both-sides-of-politics-9529

    E-Print Network [OSTI]

    industry, has been to conduct business and manage forests in a way that ensures the timber resources we Cipta Perkasa illegally cleared a peat forest in central Borneo that contained substantial stands billion annually. Logging gangs evade paying fees for use of natural resources, smuggle timber out

  14. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, Glen A. (Los Alamos, NM)

    1999-01-01

    Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

  15. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, G.A.

    1999-01-19

    Radiation-hard, steady-state imaging bolometer is disclosed. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas. 2 figs.

  16. Towards a systematic analysis of cluster computing log data: the case of IBM BlueGene/Q

    E-Print Network [OSTI]

    Towards a systematic analysis of cluster computing log data: the case of IBM BlueGene/Q Alina S^irbu, Ozalp Babaoglu Department of Computer Science and Engineering, University of Bologna Mura Anteo Zamboni and complexity of managing large comput- ing infrastructures has been on the rise. Automating management actions

  17. Improved Detection of Bed Boundaries for Petrophysical Evaluation with Well Logs: Applications to Carbonate and Organic-Shale Formations

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    : Applications to Carbonate and Organic-Shale Formations Zoya Heidari, SPE, Texas A&M University and Carlos of well logs acquired in organic shales and carbonates is challenging because of the presence of thin beds acquired in thinly bedded carbonates and in the Haynesville shale-gas formation. Estimates of petrophysical

  18. Rapid, Interactive Assessment of Petrophysical and Geometrical Effects on Density and Neutron Logs Acquired in Vertical and Deviated Wells

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SPE 124879 Rapid, Interactive Assessment of Petrophysical and Geometrical Effects on Density and invasion with water- and oil-base muds. Our rapid simulation procedure enables the interactivel on field logs. It also permits efficient integration with induction resistivity measurements for assessment

  19. Enormous sums of money are invested by industry and scientific funding agencies every year in seismic, well log-

    E-Print Network [OSTI]

    in seismic, well log- ging, electromagnetic, earthquake monitoring and micro- seismic surveys, and in laboratory-based experiments. For each survey or experiment a design process must first take place. An efficient design is usually a compromise--a suit- able trade-off between information that is expected

  20. Action on illegal logging: measuring UNECE/FAO and WTO workshop: Emerging trade measures in timber markets

    E-Print Network [OSTI]

    Africa Russia PNG & Solomons Malaysia Indonesia Burma Brazil #12;5 Exports to sensitive markets (1) · `Sensitive' markets: Australia, EU, New Zealand, US · Exports from producer countries to sensitive market to plywood exports to Nigeria ­ Cameroon's share is also falling (90%-70%), due to logs going to China

  1. State-Of-The-Art in Permeability Determination From Well Log Data: Part 1-A Comparative Study, Model Development

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Determination From Well Log Data: Part 1- A Comparative Study, Model Development Balan, B., Mohaghegh, S., Ameri use of empirically determined models, multiple variable regression, and artificial neural networks present only the model develop- ment phase in which we are testing the capability of each method to match

  2. Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal logging > Printer-friendly

    E-Print Network [OSTI]

    Published on Africa EU (http://www.africa-eu-partnership.org) Home > News > Cameroon axes illegal on the EU side. 9/13/2010 Cameroon axes illegal logging www.africa-eu-partnership.org/print/122 1/2 #12;The goes a long way in supporting the Africa-EU Partnership on Trade, Regional Integration

  3. How To Complete Export Control Training 1. Log into CITI, then you'll be brought to your main menu.

    E-Print Network [OSTI]

    Alpay, S. Pamir

    How To Complete Export Control Training 1. Log into CITI, then you'll be brought to your main menu To Complete Export Control Training 2. Scroll towards the bottom of the page to CITI Course Enrollment questions to question 4: Question 4 US Export Control Regulations Please make your selection below

  4. Constructing a Balanced, (log(N)/loglog(N))-Diameter Super-Peer Topology for Scalable P2P Systems

    E-Print Network [OSTI]

    Reeves, Douglas S.

    Constructing a Balanced, (log(N)/loglog(N))-Diameter Super-Peer Topology for Scalable P2P Systems Young June Pyun Department of Computer Science North Carolina State University Raleigh, North Carolina yjpyun@unity.ncsu.edu Douglas S. Reeves Departments of Computer Science and Electrical and Computer

  5. Annual Logging Symposium, June 19-23, 2010 Formation Evaluation in the Bakken Complex Using Laboratory Core Data

    E-Print Network [OSTI]

    , June 19-23, 2010. 1 ABSTRACT There is intense interest in the oil and gas potential of unconventional an unconventional solution with a greater level of reservoir understanding. A suite of advanced logging sensors be extended to other unconventional reservoirs. Correlations and reservoir zone prognosis are discussed

  6. Bio-logging of marine migratory species in the law of the sea James Kraska a,b,n

    E-Print Network [OSTI]

    Huang, Wei

    Bio-logging of marine migratory species in the law of the sea James Kraska a,b,n , Guillermo Ortuño Crespo a , David W. Johnston a a Division of Marine Science and Conservation, Nicholas School of the Environment Duke University Marine Laboratory, 135 Duke Marine Lab Road, Beaufort, NC 28516, USA b Stockton

  7. A Generic and Efficient E-field Parallel Imaging Correlator for Next-Generation Radio Telescopes

    E-Print Network [OSTI]

    Thyagarajan, Nithyanandan; Bowman, Judd D; Morales, Miguel F

    2015-01-01

    Modern radio telescopes are favoring densely packed array layouts consisting of large numbers of antennas ($N_\\textrm{a}\\gtrsim 1000$). Since the complexity of traditional correlators scales as $\\mathcal{O}(N_\\textrm{a}^2)$, there will be a steep cost for realizing the full imaging potential of these powerful instruments. Through our generic and efficient E-field Parallel Imaging Correlator (EPIC), we present the first software demonstration of a generalized direct imaging algorithm known as the Modular Optimal Frequency Fourier (MOFF) imager. It takes advantage of the multiplication-convolution theorem of Fourier transforms. Not only does it bring down the cost for dense layouts to $\\mathcal{O}(N_\\textrm{a}\\log_2 N_\\textrm{a})$ but can also image from irregularly arranged heterogeneous antenna arrays. EPIC is highly modular and parallelizable, implemented in object oriented Python, and publicly available. We have verified the images produced to be equivalent to those produced using traditional techniques. We...

  8. RSNA 2002: Image Fusion Image Fusion

    E-Print Network [OSTI]

    Pelizzari, Charles A.

    RSNA 2002: Image Fusion Image Fusion: Introduction to the Technology Charles A. Pelizzari, Ph.D. Department of Radiation and Cellular Oncology The University of Chicago #12;RSNA 2002: Image Fusion "Fusion and limitations) ·Where do we need to go? (future directions) #12;RSNA 2002: Image Fusion Terminology

  9. Image Gallery

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdaho NationalA pIlyaImage

  10. Review of well-logging techniques. [For use in remedial action programs

    SciTech Connect (OSTI)

    Olsen, K.B.; Young, J.A.; Thomas, V.W.

    1983-04-01

    A literature review has been conducted to determine whether suitable borehole-logging techniques exist for the measurement of gamma-ray-emitting elements using downhole detectors. Most of the methods that have been used for the last 30 years by the uranium-exploration industry involve passive gamma-ray measurement techniques utilizing NaI(Tl) and, occasionally, intrinsic germanium detectors. Parameters the industry has had to consider in calibrating these detectors are variations in (1) casing material and thickness, (2) water in the borehole, (3) hole diameter, (4) disequilibrium between uranium and its daughters in the ore zone, (5) spatial distribution of the radioactive material, and (6) dead time of the analyzer. The methods they have used to address these variable parameters appear to be applicable to remedial action programs. The techniques that have been used for the measurement of subsurface radium concentration by DOE during the engineering assessment of UMTRAP/FUSRAP sites and by NRC at one remedial action site will be described in this report.

  11. Shallow infiltration processes at Yucca Mountain, Nevada: Neutron logging data 1984--1993

    SciTech Connect (OSTI)

    Flint, L.E.; Flint, A.L.

    1995-12-31

    To determine site suitability of Yucca Mountain, Nevada, as a potential high-level radioactive waste repository, a study was devised to characterize net infiltration. This study involves a detailed data set produced from 99 neutron boreholes that consisted of volumetric water-content readings with depth from 1984 through 1993 at Yucca Mountain. Boreholes were drilled with minimal disturbance to the surrounding soil or rock in order to best represent field conditions. Boreholes were located in topographic positions representing infiltration zones identified as ridgetops, sideslopes, terraces, and active channels. Through careful field calibration, neutron moisture logs, collected on a monthly basis and representing most of the areal locations at Yucca Mountain, illustrated that the depth of penetration of seasonal moisture, important for escaping loss to evapotranspiration, was influenced by several factors. It was increased (1) by thin soil cover, especially in locations where thin soil is underlain by fractured bedrock; (2) on ridgetops; and (3) during the winter when evapotranspiration is low and runoff is less frequent. This data set helps to provide a seasonal and areal distribution of changes in volumetric water content with which to assess hydrologic processes contributing to net infiltration.

  12. Shallow infiltration processes at Yucca Mountain, Nevada - neutron logging data 1984-93

    SciTech Connect (OSTI)

    Flint, L.E.; Flint, A.L.

    1995-11-01

    To determine site suitability of Yucca Mountain, Nevada, as a potential high-level radioactive waste repository, a study was devised to characterize net infiltration. This study involves a detailed data set produced from 99 neutron boreholes that consisted of volumetric water-content readings with depth from 1984 through 1993 at Yucca Mountain. Boreholes were drilled with minimal disturbance to the surrounding soil or rock in order to best represent field conditions. Boreholes were located in topographic positions representing infiltration zones identified as ridge-tops, sideslopes, terraces, and active channels. Through careful field calibration, neutron moisture logs, collected on a monthly basis and representing most of the areal locations at Yucca Mountain, illustrated that the depth of penetration of seasonal moisture, important for escaping loss to evapotranspiration, was influenced by several factors. It was increased (1) by thin soil cover, especially in locations where thin soil is underlain by fractured bedrock; (2) on ridgetops; and (3) during the winter when evapotranspiration is low and runoff is less frequent. This data set helps to provide a seasonal and areal distribution of changes in volumetric water content with which to assess hydrologic processes contributing to net infiltration.

  13. System size dependence of the log-periodic oscillations of transverse momentum spectra

    E-Print Network [OSTI]

    Maciej Rybczynski; Grzegorz Wilk; Zbigniew Wlodarczyk

    2014-11-19

    Recently the inclusive transverse momentum distributions of primary charged particles were measured for different centralities in $Pb+Pb$ collisions. A strong suppression of the nuclear modification factor in central collisions around $p_T \\sim 6-7$ GeV/c was seen. As a possible explanation, the hydrodynamic description of the collision process was tentatively proposed. However, such effect, (albeit much weaker) also exists in the ratio of data/fits, both in nuclear $Pb+Pb$ collisions, and in the elementary $p+p$ data in the same range of transverse momenta for which such an explanation is doubtful. As shown recently, in this case, assuming that this effect is genuine, it can be attributed to a specific modification of a quasi-power like formula usually used to describe such $p_T$ data, namely the Tsallis distribution. Following examples from other branches of physics, one simply has to allow for the power index becoming a complex number. This results in specific log-periodic oscillations dressing the usual power-like distribution, which can fit the $p+p$ data. In this presentation we demonstrate that this method can also describe $Pb+Pb$ data for different centralities. We compare it also with a two component statistical model with two Tsallis distributions recently proposed showing that data at still larger $p_T$ will be sufficient to discriminate between these two approaches.

  14. Parameter estimation from flowing fluid temperature logging data in unsaturated fractured rock using multiphase inverse modeling

    SciTech Connect (OSTI)

    Mukhopadhyay, S.; Tsang, Y.; Finsterle, S.

    2009-01-15

    A simple conceptual model has been recently developed for analyzing pressure and temperature data from flowing fluid temperature logging (FFTL) in unsaturated fractured rock. Using this conceptual model, we developed an analytical solution for FFTL pressure response, and a semianalytical solution for FFTL temperature response. We also proposed a method for estimating fracture permeability from FFTL temperature data. The conceptual model was based on some simplifying assumptions, particularly that a single-phase airflow model was used. In this paper, we develop a more comprehensive numerical model of multiphase flow and heat transfer associated with FFTL. Using this numerical model, we perform a number of forward simulations to determine the parameters that have the strongest influence on the pressure and temperature response from FFTL. We then use the iTOUGH2 optimization code to estimate these most sensitive parameters through inverse modeling and to quantify the uncertainties associated with these estimated parameters. We conclude that FFTL can be utilized to determine permeability, porosity, and thermal conductivity of the fracture rock. Two other parameters, which are not properties of the fractured rock, have strong influence on FFTL response. These are pressure and temperature in the borehole that were at equilibrium with the fractured rock formation at the beginning of FFTL. We illustrate how these parameters can also be estimated from FFTL data.

  15. LogTool: A Flexible, Publicly Available Data Analysis Tool Providing Graphical Analysis, Extraction of Data Subsets and Daytyping for Multiple Data Formats 

    E-Print Network [OSTI]

    Qualmann, R. L.; Goudge, P.; Baker, M.

    2007-01-01

    and anomalies in systems so possible cures can be identified. Data plots can be copied into reports and subsets of data extracted for use in numeric analyses outside LogTool. Data are stored in MDB files accessible by MS Access and other software. Log...

  16. Ejercicios de Teoria de Numeros para las Navidades 2009 Problema 1. a) (facil) Demostrar que log m.c.m.{1, . . . , n} n.

    E-Print Network [OSTI]

    Cilleruelo, Javier

    Ejercicios de Teor´ia de N´umeros para las Navidades 2009 Problema 1. a) (f´acil) Demostrar que log m.c.m.{1, . . . , n} n. b) (dif´icil) Hallar el comportamiento asint´otico de log m.c.m.{1, 6

  17. A preliminary version of this paper appears in the proceedings of ESORICS 2014. This is the full version. Even more practical secure logging

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    version. Even more practical secure logging: Tree-based Seekable Sequential Key Generators Giorgia Azzurra building block. In this paper we revisit the challenge of marrying forward-secure key generation with seek. Not less important is the role that log files play in computer forensics: events like login failures

  18. NYTimes.com Welcome, radhikanagpal -Member Center -Log Out NYT Since 1981

    E-Print Network [OSTI]

    Napp, Nils

    of the E. coli bacterium. NEWS ALERT | 12:48 PM ET Senate Blocks Measure to Allow Arctic Drilling Live From are not about to replace conventional photography because it takes at least two hours to produce a single image biology and more conventional genetic engineering is not always clear. Proponents of synthetic biology say

  19. Imaging the Low Red-shift Cosmic Web

    E-Print Network [OSTI]

    Robert Braun; David Thilker

    2005-01-17

    The first image of a Cosmic Web, Lyman Limit System has just been made in HI emission within the Local Group filament connecting M31 and M33. The corresponding HI distribution function is in very good agreement with that of the QSO absorption lines, confirming the 30-fold increase in surface area expected between 10^19 cm^-2 and 10^17 cm^-2. The critical observational challenge is crossing the ``HI desert'', the range of log(N_HI) from about 19.5 down to 18, over which photo-ionization by the intergalactic radiation field produces an exponential decline in the neutral fraction from essentially unity down to a few percent. Nature is kinder again to the HI observer below log(N_HI) = 18, where the neutral fraction decreases only very slowly with log(N_HI). Average spectra of the M31/M33 filament suggest a kinetic temperature of 2x10^5 K for the parent ion population, consistent with significant shock-heating. The brightest knot within the filament, with only a 2x10^4 K apparent temperature, is suggestive of localized cooling and condensation. We have initiated two complimentary surveys that should lay the groundwork for a comprehensive study of the Cosmic Web phenomenon in HI emission. When combined with targeted optical and UV absorption line observations, the total baryonic masses and enrichment histories of the Cosmic Web could be determined over the complete range of environmental over-densities.

  20. The Log-Structured Merge-Tree (LSM-Tree) Patrick O'Neil1, Edward Cheng2

    E-Print Network [OSTI]

    O'Neil, Patrick

    -based index structures such as the B-tree will effectively double the I/O cost of the transaction to maintain an index such as this in real time, increasing the total system cost up to fifty percent. Clearly a method for maintaining a real-time index at low cost is desirable. The Log-Structured Merge-tree (LSM-tree) is a disk

  1. Sandia Energy - Advanced Imaging

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

    Advanced Imaging Home Transportation Energy Predictive Simulation of Engines Reacting Flow Experiments Advanced Imaging Advanced ImagingAshley Otero2015-10-30T01:47:37+00:00...

  2. Image Georeferencing Lesson 4: Image Georeferencing

    E-Print Network [OSTI]

    Butler, Christopher J.

    vector digitizing. You should read the section "Coordinate Transformation", in Chapter 4 of the GIS georeferencing, also known as image registration or image transformation. We'll then update a data layers through mapping vegetation, wetlands, and land use change. While many images are provided in digital formats

  3. Fermilab | Press Room | Images

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

    Fermilab constructs pioneering accelerator test facility: photos, videos & graphics Click on links below images for medium and high-resolution jpeg images. When using this...

  4. Quantifying the Permeability Heterogeneity of Sandstone Reservoirs in Boonsville Field, Texas by Integrating Core, Well Log and 3D Seismic Data 

    E-Print Network [OSTI]

    Song, Qian

    2013-04-29

    the permeability heterogeneity of the target reservoir by integrating core, well log and 3D seismic data. A set of permeability coefficients, variation coefficient, dart coefficient, and contrast coefficient, was defined in this study to quantitatively identify...

  5. Information Sheet Students PaperCut 1. When you log into a computer on campus, the PaperCut Balance window will appear in the right hand

    E-Print Network [OSTI]

    Northern British Columbia, University of

    Information Sheet ­ Students ­ PaperCut 1. When you log into a computer on campus, the PaperCut Balance window will appear in the right hand corner of your screen. 2. Each semester, you will need

  6. Personal Statement I grew up in a log cabin beside a pond in New Hampshire and later in a house on a river in Maine.

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Personal Statement I grew up in a log cabin beside a pond in New Hampshire and later in a house in frosty months. Spurning food stamps, some years our only animal food was venison and brook trout

  7. Vegetation History And Logging Disturbance: Effects On Rain Forest In The Lope Reserve, Gabon (With Special Emphasis On Elephants and Apes) 

    E-Print Network [OSTI]

    White, Lee JT

    An investigation of the effects of commercial mechanised selective logging on rain forest vegetation and mammals, was undertaken in the Lope Reserve, central Gabon, between January 1989 to July 1991. Vegetation in Lope ...

  8. Probabilistic Web Image Gathering

    E-Print Network [OSTI]

    Yanai, Keiji

    1 Probabilistic Web Image Gathering 1. Objective & background 2. Related work 3. Method 4, JAPAN (UEC) (Long-term) Objective of our Web Image Gathering Gather several hundreds of images associated with one concept from the Web without human intervention It's not image search. Non

  9. Seismic Imaging and Monitoring

    SciTech Connect (OSTI)

    Huang, Lianjie

    2012-07-09

    I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

  10. 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.

  11. Image registration method for medical image sequences

    DOE Patents [OSTI]

    Gee, Timothy F.; Goddard, James S.

    2013-03-26

    Image registration of low contrast image sequences is provided. In one aspect, a desired region of an image is automatically segmented and only the desired region is registered. Active contours and adaptive thresholding of intensity or edge information may be used to segment the desired regions. A transform function is defined to register the segmented region, and sub-pixel information may be determined using one or more interpolation methods.

  12. Page-Differential Logging: An Efficient and DBMS-independent Approach for Storing Data into Flash Memory

    E-Print Network [OSTI]

    Kim, Yi-Reun; Song, Il-Yeol

    2010-01-01

    Flash memory is widely used as the secondary storage in lightweight computing devices due to its outstanding advantages over magnetic disks. Flash memory has many access characteristics different from those of magnetic disks, and how to take advantage of them is becoming an important research issue. There are two existing approaches to storing data into flash memory: page-based and log-based. The former has good performance for read operations, but poor performance for write operations. In contrast, the latter has good performance for write operations when updates are light, but poor performance for read operations. In this paper, we propose a new method of storing data, called page-differential logging, for flash-based storage systems that solves the drawbacks of the two methods. The primary characteristics of our method are: (1) writing only the difference (which we define as the page-differential) between the original page in flash memory and the up-to-date page in memory; (2) computing and writing the pag...

  13. Consortium for coal log pipeline research and development. Final technical progress report, August 10, 1993--August 9, 1996

    SciTech Connect (OSTI)

    Marrero, T.R.

    1996-10-01

    The main objective of this project was to conduct intensive research and development of the Coal Log Pipeline (CLP). Specifically, the R & D was to concentrate on previously neglected and insufficiently studied aspects of CLP which were deemed significant. With improvements in these areas, CLP could be implemented for commercial use within five years. CLP technology is capable of transporting coal logs for long distances. The many potential advantages of CLP over truck and railroad transportation include: lower freight costs, less energy consumption, less air pollution, decreased environmental problems, increased safety, and improved reliability. Previous studies have shown that CLP is advantageous over slurry pipeline technology. First, CLP uses one-third the water required by a coal slurry pipeline. Second, CLP provides easier coal dewatering. Third, the CLP conveying capacity of coal is twice as much as a slurry transport line of equal diameter. In many situations, the cost for transporting each ton of coal is expected to be less expensive by CLP as compared to other competing modes of transportation such as: truck, unit train and slurry pipeline.

  14. Last updated on June 1, 2013 at 17:20 EDT Log In and Sign Up with: Home Video News Images Health Education Topics Blogs Daily Orbit

    E-Print Network [OSTI]

    Lummaa, Virpi

    On Prevention Of Bullying In Schools And Colleges Using Probiotics To Fight The Side Effects Of Antibiotics

  15. Practical image based lighting 

    E-Print Network [OSTI]

    Lee, Jaemin

    2003-01-01

    information is lighting. Image based lighting that is developed to recover illumination information of the real world from photographs has recently been popular in computer graphics. In this thesis we present a practical image based lighting method. Our...

  16. Computational ghost imaging

    E-Print Network [OSTI]

    Shapiro, Jeffrey H.

    A computational ghost-imaging arrangement that uses only a single-pixel detector is described. It affords a new 3D sectioning capability and matches the resolution of pseudothermal ghost imaging.

  17. User Science Images

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

    Research | URL: https:www.fin.ucar.edunetpubserver.np?find&siteimagelibrary&catalogcatalog&templatedetail.np&fielditemid&opmatches&value3438 Download Image:...

  18. Analyzing and improving image quality in reflective ghost imaging

    E-Print Network [OSTI]

    Hardy, Nicholas D. (Nicholas David)

    2011-01-01

    Ghost imaging is a transverse imaging technique that relies on the correlation between a pair of light fields, one that has interacted with the object to be imaged and one that has not. Most ghost imaging experiments have ...

  19. Human Functional Brain Imaging

    E-Print Network [OSTI]

    Rambaut, Andrew

    Human Functional Brain Imaging 1990­2009 September 2011 Portfolio Review #12;2 | Portfolio Review: Human Functional Brain ImagingThe Wellcome Trust is a charity registered in England and Wales, no's role in supporting human functional brain imaging and have informed `our' speculations for the future

  20. Human Functional Brain Imaging

    E-Print Network [OSTI]

    Rambaut, Andrew

    Human Functional Brain Imaging 1990­2009 September 2011 Portfolio Review Summary Brain Imaging #12 Dale ­ one of our first Trustees. Understanding the brain remains one of our key strategic aims today three-fold: · to identify the key landmarks and influences on the human functional brain imaging

  1. Image Sensor Application

    E-Print Network [OSTI]

    Stanford University

    ; #12; #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 and Statistics #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 Expose 2 and Statistics #12; Image Sensor Lens Metadata Actions Flash ... Application Processor Con gure 1 Expose 2

  2. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V

    2013-06-25

    A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

  3. Near-electrode imager

    DOE Patents [OSTI]

    Rathke, Jerome W. (Lockport, IL); Klingler, Robert J. (Westmont, IL); Woelk, Klaus (Wachtberg, DE); Gerald, II, Rex E. (Brookfield, IL)

    2000-01-01

    An apparatus, near-electrode imager, for employing nuclear magnetic resonance imaging to provide in situ measurements of electrochemical properties of a sample as a function of distance from a working electrode. The near-electrode imager uses the radio frequency field gradient within a cylindrical toroid cavity resonator to provide high-resolution nuclear magnetic resonance spectral information on electrolyte materials.

  4. Automation in image cytometry : continuous HCS and kinetic image cytometry

    E-Print Network [OSTI]

    Charlot, David J.

    2012-01-01

    OF CALIFORNIA, SAN DIEGO Automation in Image Cytometry:xiv Abstract of Dissertation Automation in Image Cytometry:

  5. Fourier plane imaging microscopy

    SciTech Connect (OSTI)

    Dominguez, Daniel, E-mail: daniel.dominguez@ttu.edu; Peralta, Luis Grave de [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Alharbi, Nouf; Alhusain, Mdhaoui [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Bernussi, Ayrton A. [Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409 (United States)

    2014-09-14

    We show how the image of an unresolved photonic crystal can be reconstructed using a single Fourier plane (FP) image obtained with a second camera that was added to a traditional compound microscope. We discuss how Fourier plane imaging microscopy is an application of a remarkable property of the obtained FP images: they contain more information about the photonic crystals than the images recorded by the camera commonly placed at the real plane of the microscope. We argue that the experimental results support the hypothesis that surface waves, contributing to enhanced resolution abilities, were optically excited in the studied photonic crystals.

  6. HI Imaging the Low Red-shift Cosmic Web

    E-Print Network [OSTI]

    Robert Braun

    2004-09-09

    Only in recent years has the realization emerged that galaxies do not dominate the universal baryon budget but are merely the brightest pearls of an underlying Cosmic Web. Although the gas in these inter-galactic filaments is moderately to highly ionized, QSO absorption lines have shown that the surface area increases dramatically in going down to lower HI column densities. The first image of the Cosmic Web in HI emission has just been made of the Local Group filament connecting M31 and M33. The corresponding HI distribution function is in very good agreement with that of the QSO absorption lines, confirming the 30-fold increase in surface area expected between 10^19 cm^-2 and 10^17 cm^-2. The critical observational challenge is crossing the "HI desert", the range of log(N_HI) from about 19.5 down to 18, over which photo-ionization by the intergalactic radiation field produces an exponential decline in the neutral fraction from essentially unity down to a few percent. Nature is kinder again to the HI observer below log(N_HI)=18, where the neutral fraction decreases only very slowly with log(N_HI). With the SKA we can begin the systematic study of the Cosmic Web beyond the Local Group. With moderate integration times, the necessary resolution and sensitivity can be achieved out to distances beyond the Virgo cluster. When combined with targeted optical and UV absorption line observations, the total baryonic masses and enrichment histories of the Cosmic Web will be determined over the complete range of environmental over-densities.

  7. Image compression technique

    DOE Patents [OSTI]

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

    1997-03-25

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

  8. Image compression technique

    DOE Patents [OSTI]

    Fu, Chi-Yung (San Francisco, CA); Petrich, Loren I. (Livermore, CA)

    1997-01-01

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

  9. List of Publications (Reverse Chronological Order) Click on the blue publication numbers to access the full text pdfs. You may need to be logged in to your institution web pages

    E-Print Network [OSTI]

    Ojovan, Michael

    the full text pdfs. You may need to be logged in to your institution web pages to access some journal pages

  10. Imaging arrangement and microscope

    DOE Patents [OSTI]

    Pertsinidis, Alexandros; Chu, Steven

    2015-12-15

    An embodiment of the present invention is an imaging arrangement that includes imaging optics, a fiducial light source, and a control system. In operation, the imaging optics separate light into first and second tight by wavelength and project the first and second light onto first and second areas within first and second detector regions, respectively. The imaging optics separate fiducial light from the fiducial light source into first and second fiducial light and project the first and second fiducial light onto third and fourth areas within the first and second detector regions, respectively. The control system adjusts alignment of the imaging optics so that the first and second fiducial light projected onto the first and second detector regions maintain relatively constant positions within the first and second detector regions, respectively. Another embodiment of the present invention is a microscope that includes the imaging arrangement.

  11. Video Toroid Cavity Imager

    DOE Patents [OSTI]

    Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

    2004-08-10

    A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

  12. Ferroelectric optical image comparator

    DOE Patents [OSTI]

    Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

    1993-11-30

    A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 7 figures.

  13. Graphics and Image Standards

    Broader source: Energy.gov [DOE]

    For EERE websites and applications, follow these requirements and best practices for designing graphics and developing images. This includes making them Section 508-compliant.

  14. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

    1990-01-01

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

  15. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

    1990-08-14

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

  16. Fermilab | Press Room | Images

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

    When using these images, please credit Fermilab. Return to Press Release Med Res | Hi Res According to the Standard Model of particles and forces, the Higgs mechanism gives...

  17. Fermilab | Press Room | Images

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

    using these images, please credit them as specified. Return to Press Release Med Res | Hi Res The Standard Model describes the interactions of the fundamental particle of the...

  18. HR System Access Request Form Security Administration, Human Resources (HR) For additional instructions and information, log onto http://hr.vanderbilt.edu/security/

    E-Print Network [OSTI]

    Simaan, Nabil

    instructions and information, log onto http://hr.vanderbilt.edu/security/ Home Department VUnet IDHR EmployeeHR System Access Request Form Security Administration, Human Resources (HR) For additional ID Name Email AddressWork Phone Home Dept Name Effective Date of Access Operator Information I

  19. A GIS-LIKE TRAINING ALGORITHM FOR LOG-LINEAR MODELS WITH HIDDEN Georg Heigold, Thomas Deselaers, Ralf Schluter, and Hermann Ney

    E-Print Network [OSTI]

    Deselaers, Thomas

    A GIS-LIKE TRAINING ALGORITHM FOR LOG-LINEAR MODELS WITH HIDDEN VARIABLES Georg Heigold, Thomas with Generalized Iterative Scal- ing (GIS). GIS offers, upon others, the immediate advantages that it is locally convergent, completely parameter free, and guarantees an improvement of the criterion in each step. GIS

  20. UBC Social, Ecological Economic Development Studies (SEEDS) Student Report Alezo Enterprises Inc.: Manufacturer of Wood Products from Small Diameter Douglas Fir Logs

    E-Print Network [OSTI]

    Forest, will minimize costs of shipping raw materials. Staffing requirements are minimal during the first.: Manufacturer of Wood Products from Small Diameter Douglas Fir Logs Terri Anderson, Dianna Embleton, Alfred Lee Inc. has been created by five successful and interested graduates, with the purpose of manufacturing

  1. Friedman Web Site Student Cheat Sheet This document explains the different ways you can interact, while logged in, to the Friedman web site.

    E-Print Network [OSTI]

    Dennett, Daniel

    1 Friedman Web Site Student Cheat Sheet This document explains the different ways you can interact, while logged in, to the Friedman web site. Contents Friedman Web Site Student Cheat Sheet page on the Friedman web site and click on the white text Login in the red footer. In the next screen

  2. School of Electronic, Electrical and Systems Engineering From the first time you log on to our website to when you shake

    E-Print Network [OSTI]

    Birmingham, University of

    School of Electronic, Electrical and Systems Engineering From the first time you log on to our of Electronic, Electrical and Systems Engineering Smart devices, smart solutions... smart people. #12;2 School of Electronic, Electrical and Systems Engineering Welcome I am delighted that you are interested in engineering

  3. Invasion Correction of Acoustic Logs in a Gas Reservoir Shihong Chi*, Jianghui Wu, and Carlos Torres-Verdin, The University of Texas at Austin

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    Invasion Correction of Acoustic Logs in a Gas Reservoir Shihong Chi*, Jianghui Wu, and Carlos-wave velocities in the near-wellbore region. This study focuses on two wells in a gas reservoir. The radial saturation distribution of mud filtrate and connate formation fluids is first obtained by simulating the mud

  4. Annual Logging Symposium, June 22-26, 2013 MISCIBILITY EFFECTS OF OIL-BASE MUD AND IN-SITU GAS ON

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    -temperature, high-pressure drilling. However, because the base fluid in OBM is oil, OBM filtrate tends to mix resonance (NMR) can be affected by compositional fluid mixing. Recent field data collected in deepwater invasion and fluid miscibility during petrophysical interpretations of logs acquired in OBM-drilled wells

  5. Joint stochastic inversion of 3D pre-stack seismic data and well logs for high-resolution reservoir characterization and petrophysical modeling: application to deepwater hydrocarbon

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    Joint stochastic inversion of 3D pre-stack seismic data and well logs for high-resolution reservoir of migrated 3D pre-stack seismic data. The inversion algorithm is based on a Bayesian statistical search of elastic and petrophysical properties we resorted to amplitude information of 3D pre-stack seismic data

  6. Edge-based correlation image registration for multispectral imaging

    DOE Patents [OSTI]

    Nandy, Prabal (Albuquerque, NM)

    2009-11-17

    Registration information for images of a common target obtained from a plurality of different spectral bands can be obtained by combining edge detection and phase correlation. The images are edge-filtered, and pairs of the edge-filtered images are then phase correlated to produce phase correlation images. The registration information can be determined based on these phase correlation images.

  7. Hyperspectral image reconstruction for x-ray fluorescence tomography

    SciTech Connect (OSTI)

    Gürsoy, Do?a; Biçer, Tekin; Lanzirotti, Antonio; Newville, Matthew G.; De Carlo, Francesco

    2015-01-01

    A penalized maximum-likelihood estimation is proposed to perform hyperspectral (spatio-spectral) image reconstruction for X-ray fluorescence tomography. The approach minimizes a Poisson-based negative log-likelihood of the observed photon counts, and uses a penalty term that has the effect of encouraging local continuity of model parameter estimates in both spatial and spectral dimensions simultaneously. The performance of the reconstruction method is demonstrated with experimental data acquired from a seed of arabidopsis thaliana collected at the 13-ID-E microprobe beamline at the Advanced Photon Source. The resulting element distribution estimates with the proposed approach show significantly better reconstruction quality than the conventional analytical inversion approaches, and allows for a high data compression factor which can reduce data acquisition times remarkably. In particular, this technique provides the capability to tomographically reconstruct full energy dispersive spectra without compromising reconstruction artifacts that impact the interpretation of results.

  8. Hyperspectral image reconstruction for x-ray fluorescence tomography

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

    Gürsoy, Do?a; Biçer, Tekin; Lanzirotti, Antonio; Newville, Matthew G.; De Carlo, Francesco

    2015-01-01

    A penalized maximum-likelihood estimation is proposed to perform hyperspectral (spatio-spectral) image reconstruction for X-ray fluorescence tomography. The approach minimizes a Poisson-based negative log-likelihood of the observed photon counts, and uses a penalty term that has the effect of encouraging local continuity of model parameter estimates in both spatial and spectral dimensions simultaneously. The performance of the reconstruction method is demonstrated with experimental data acquired from a seed of arabidopsis thaliana collected at the 13-ID-E microprobe beamline at the Advanced Photon Source. The resulting element distribution estimates with the proposed approach show significantly better reconstruction quality than the conventional analytical inversionmore »approaches, and allows for a high data compression factor which can reduce data acquisition times remarkably. In particular, this technique provides the capability to tomographically reconstruct full energy dispersive spectra without compromising reconstruction artifacts that impact the interpretation of results.« less

  9. Scandinavian Workshop on Imaging

    E-Print Network [OSTI]

    Mosegaard, Klaus

    Barcode Imaging of Chocolate Milk Quan.fica.on of Microstructures in Freeze.on of Fat Content in Raw Beef Cut Meat Evalua.on by RGB-to-spectrum Imaging.on to Visualizing Meat Products Characteriza.on of Commercial Danish Apple Cul.var Using Novel

  10. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2012-07-24

    A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

  11. COVER IMAGE Mechanical metamaterials

    E-Print Network [OSTI]

    Loss, Daniel

    COVER IMAGE Mechanical metamaterials are artificial structures whose properties originate from a range of structural deformations. Letter p153; News & Views p95 IMAGE: JAYSON PAULOSE COVER DESIGN in elementary optical excitations of monolayer WSe2 Ajit Srivastava, Meinrad Sidler, Adrien V. Allain, Dominik S

  12. Heart imaging method

    DOE Patents [OSTI]

    Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

    1991-01-01

    A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

  13. Fluorescent image tracking velocimeter

    DOE Patents [OSTI]

    Shaffer, Franklin D. (Library, PA)

    1994-01-01

    A multiple-exposure fluorescent image tracking velocimeter (FITV) detects and measures the motion (trajectory, direction and velocity) of small particles close to light scattering surfaces. The small particles may follow the motion of a carrier medium such as a liquid, gas or multi-phase mixture, allowing the motion of the carrier medium to be observed, measured and recorded. The main components of the FITV include: (1) fluorescent particles; (2) a pulsed fluorescent excitation laser source; (3) an imaging camera; and (4) an image analyzer. FITV uses fluorescing particles excited by visible laser light to enhance particle image detectability near light scattering surfaces. The excitation laser light is filtered out before reaching the imaging camera allowing the fluoresced wavelengths emitted by the particles to be detected and recorded by the camera. FITV employs multiple exposures of a single camera image by pulsing the excitation laser light for producing a series of images of each particle along its trajectory. The time-lapsed image may be used to determine trajectory and velocity and the exposures may be coded to derive directional information.

  14. Adaptive wiener image restoration kernel

    DOE Patents [OSTI]

    Yuan, Ding (Henderson, NV)

    2007-06-05

    A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

  15. Content-Aware Image enhancement

    E-Print Network [OSTI]

    Schettini, Raimondo

    Content-Aware Image enhancement R. Schettini www.ivl.disco.unimib.it #12;8 Faculties, 61 Degree Recognition Content-based retrieval Quality Assessment #12;Content-Aware Image Enhancement Presentation Image Processing Content aware image enhancement We focus here on image based features. And show how

  16. Image forming apparatus

    DOE Patents [OSTI]

    Satoh, Hisao (Hachioji, JP); Haneda, Satoshi (Hachioji, JP); Ikeda, Tadayoshi (Hachioji, JP); Morita, Shizuo (Hachioji, JP); Fukuchi, Masakazu (Hachioji, JP)

    1996-01-01

    In an image forming apparatus having a detachable process cartridge in which an image carrier on which an electrostatic latent image is formed, and a developing unit which develops the electrostatic latent image so that a toner image can be formed, both integrally formed into one unit. There is provided a developer container including a discharge section which can be inserted into a supply opening of the developing unit, and a container in which a predetermined amount of developer is contained, wherein the developer container is provided to the toner supply opening of the developing unit and the developer is supplied into the developing unit housing when a toner stirring screw of the developing unit is rotated.

  17. Time encoded radiation imaging

    DOE Patents [OSTI]

    Marleau, Peter; Brubaker, Erik; Kiff, Scott

    2014-10-21

    The various technologies presented herein relate to detecting nuclear material at a large stand-off distance. An imaging system is presented which can detect nuclear material by utilizing time encoded imaging relating to maximum and minimum radiation particle counts rates. The imaging system is integrated with a data acquisition system that can utilize variations in photon pulse shape to discriminate between neutron and gamma-ray interactions. Modulation in the detected neutron count rates as a function of the angular orientation of the detector due to attenuation of neighboring detectors is utilized to reconstruct the neutron source distribution over 360 degrees around the imaging system. Neutrons (e.g., fast neutrons) and/or gamma-rays are incident upon scintillation material in the imager, the photons generated by the scintillation material are converted to electrical energy from which the respective neutrons/gamma rays can be determined and, accordingly, a direction to, and the location of, a radiation source identified.

  18. Confocal coded aperture imaging

    DOE Patents [OSTI]

    Tobin, Jr., Kenneth William (Harriman, TN); Thomas, Jr., Clarence E. (Knoxville, TN)

    2001-01-01

    A method for imaging a target volume comprises the steps of: radiating a small bandwidth of energy toward the target volume; focusing the small bandwidth of energy into a beam; moving the target volume through a plurality of positions within the focused beam; collecting a beam of energy scattered from the target volume with a non-diffractive confocal coded aperture; generating a shadow image of said aperture from every point source of radiation in the target volume; and, reconstructing the shadow image into a 3-dimensional image of the every point source by mathematically correlating the shadow image with a digital or analog version of the coded aperture. The method can comprise the step of collecting the beam of energy scattered from the target volume with a Fresnel zone plate.

  19. Recovery Efficiency Test Project: Phase 1, Activity report. Volume 1: Site selection, drill plan preparation, drilling, logging, and coring operations

    SciTech Connect (OSTI)

    Overbey, W.K. Jr.; Carden, R.S.; Kirr, J.N.

    1987-04-01

    The recovery Efficiency Test well project addressed a number of technical issues. The primary objective was to determine the increased efficiency gas recovery of a long horizontal wellbore over that of a vertical wellbore and, more specifically, what improvements can be expected from inducing multiple hydraulic fractures from such a wellbore. BDM corporation located, planned, and drilled a long radius turn horizontal well in the Devonian shale Lower Huron section in Wayne County, West Virginia, demonstrating that state-of-the-art technology is capable of drilling such wells. BDM successfully tested drilling, coring, and logging in a horizontal well using air as the circulating medium; conducted reservoir modeling studies to protect flow rates and reserves in advance of drilling operations; observed two phase flow conditions in the wellbore not observed previously; cored a fracture zone which produced gas; observed that fractures in the core and the wellbore were not systematically spaced (varied from 5 to 68 feet in different parts of the wellbore); observed that highest gas show rates reported by the mud logger corresponded to zone with lowest fracture spacing (five feet) or high fracture frequency. Four and one-half inch casting was successfully installed in the borehole and was equipped to isolate the horizontal section into eight (8) zones for future testing and stimulation operations. 6 refs., 48 figs., 10 tabs.

  20. Iterative electromagnetic Born inversion applied to earth conductivity imaging

    SciTech Connect (OSTI)

    Alumbaugh, D.L.

    1993-08-01

    This thesis investigates the use of a fast imaging technique to deduce the spatial conductivity distribution in the earth from low frequency (< 1 MHz), cross well electromagnetic (EM) measurements. The theory embodied in this work is the extension of previous strategies and is based on the Born series approximation to solve both the forward and inverse problem. Nonlinear integral equations are employed to derive the series expansion which accounts for the scattered magnetic fields that are generated by inhomogeneities embedded in either a homogenous or a layered earth. A sinusoidally oscillating, vertically oriented magnetic dipole is employed as a source, and it is assumed that the scattering bodies are azimuthally symmetric about the source dipole axis. The use of this model geometry reduces the 3-D vector problem to a more manageable 2-D scalar form. The validity of the cross well EM method is tested by applying the imaging scheme to two sets of field data. Images of the data collected at the Devine, Texas test site show excellent correlation with the well logs. Unfortunately there is a drift error present in the data that limits the accuracy of the results. A more complete set of data collected at the Richmond field station in Richmond, California demonstrates that cross well EM can be successfully employed to monitor the position of an injected mass of salt water. Both the data and the resulting images clearly indicate the plume migrates toward the north-northwest. The plausibility of these conclusions is verified by applying the imaging code to synthetic data generated by a 3-D sheet model.

  1. Logging in to Hopper

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

    it so that the applications run on the Hopper compute nodes. Accelerated X11 Performance NX is a freely available software package that greatly improves X11 performance over the...

  2. Logging in to Franklin

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

    (such as when Franklin is down), see Franklin login nodes. Accelerated X11 Performance NX is a freely available software package that greatly improves X11 performance over the...

  3. abstract.log

    E-Print Network [OSTI]

    (/usr/share/texmf-texlive/tex/latex/base/article.cls Document Class: article ... UCS: Unicode global data ) \\uc@secondtry=\\count87 \\uc@combtoks=\\toks16 ...

  4. Job Logs & Statistics

    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 WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat Pumps HeatTechnologies | Blandine| Blandine| Queue Status

  5. Logging in to Hopper

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting Hotel

  6. FOIA Log 2012.xlsx

    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 like submitKansasCommunitiesofExtrans - PermeationGovernmentCOOLING29,FNAL Rec'd Requestor

  7. FOIA Log 2013.xlsx

    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 like submitKansasCommunitiesofExtrans - PermeationGovernmentCOOLING29,FNAL Rec'd

  8. FOIA Log 2014.xlsx

    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 like submitKansasCommunitiesofExtrans - PermeationGovernmentCOOLING29,FNAL Rec'd Closed

  9. Nuclear medicine imaging system

    DOE Patents [OSTI]

    Bennett, G.W.; Brill, A.B.; Bizais, Y.J.C.; Rowe, R.W.; Zubal, I.G.

    1983-03-11

    It is an object of this invention to provide a nuclear imaging system having the versatility to do positron annihilation studies, rotating single or opposed camera gamma emission studies, and orthogonal gamma emission studies. It is a further object of this invention to provide an imaging system having the capability for orthogonal dual multipinhole tomography. It is another object of this invention to provide a nuclear imaging system in which all available energy data, as well as patient physiological data, are acquired simultaneously in list mode.

  10. Colour Image Segmentation Wladyslaw Skarbek

    E-Print Network [OSTI]

    Koschan, Andreas

    Colour Image Segmentation A Survey Wladyslaw Skarbek Institute of Computer Science Polish Academy . . . . . . . . . . . . . . . . . . . . . . . . 23 4.2.1 Colour image segmentation and labeling through multiediting and condensing

  11. InSAR (Monaster And Coolbaugh, 2007) | 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:QAsource History View NewTexas: Energy ResourcesOrder at 8, 13 (Vt. Water Res. Bd. May, 2004) | Open Energy(Monaster

  12. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the National Park Service: Fort Vancouver National Historic Site

    SciTech Connect (OSTI)

    Stephen Schey; Jim Francfort

    2014-03-01

    Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy’s Idaho National Laboratory, is the lead laboratory for the U.S. Department of Energy’s Advanced Vehicle Testing. Battelle Energy Alliance, LLC contracted with Intertek Testing Services, North America (ITSNA) to collect data on federal fleet operations as part of the Advanced Vehicle Testing Activity’s Federal Fleet Vehicle Data Logging and Characterization study. The Advanced Vehicle Testing Activity study seeks to collect data to validate the use of advanced electric drive vehicle transportation. This report focuses on the Fort Vancouver National Historic Site (FVNHS) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of electric vehicles (EVs) into the agencies’ fleet. Individual observations of the selected vehicles provided the basis for recommendations related to EV adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles) could fulfill the mission requirements. FVNHS identified three vehicles in its fleet for consideration. While the FVNHS vehicles conduct many different missions, only two (i.e., support and pool missions) were selected by agency management to be part of this fleet evaluation. The logged vehicles included a pickup truck and a minivan. This report will show that BEVs and PHEVs are capable of performing the required missions and providing an alternative vehicle for both mission categories, because each has sufficient range for individual trips and time available each day for charging to accommodate multiple trips per day. These charging events could occur at the vehicle’s home base, high-use work areas, or in intermediate areas along routes that the vehicles frequently travel. Replacement of vehicles in the current fleet would result in significant reductions in emission of greenhouse gases and petroleum use, while also reducing fuel costs. The Vancouver, Washington area and neighboring Portland, Oregon are leaders in adoption of PEVs in the United States1. PEV charging stations, or more appropriately identified as electric vehicle supply equipment, located on the FVNHS facility would be a benefit for both FVNHS fleets and general public use. Fleet drivers and park visitors operating privately owned plug-in electric vehicles benefit by using the charging infrastructure. ITSNA recommends location analysis of the FVNHS site to identify the optimal station placement for electric vehicle supply equipment. ITSNA recognizes the support of Idaho National Laboratory and ICF International for their efforts to initiate communication with the National Parks Service and FVNHS for participation in this study. ITSNA is pleased to provide this report and is encouraged by the high interest and support from the National Park Service and FVNHS personnel

  13. Determination of Transport Properties From Flowing Fluid Temperature LoggingIn Unsaturated Fractured Rocks: Theory And Semi-Analytical Solution

    SciTech Connect (OSTI)

    Mukhopadhyay, Sumit; Tsang, Yvonne W.

    2008-08-01

    Flowing fluid temperature logging (FFTL) has been recently proposed as a method to locate flowing fractures. We argue that FFTL, backed up by data from high-precision distributed temperature sensors, can be a useful tool in locating flowing fractures and in estimating the transport properties of unsaturated fractured rocks. We have developed the theoretical background needed to analyze data from FFTL. In this paper, we present a simplified conceptualization of FFTL in unsaturated fractured rock, and develop a semianalytical solution for spatial and temporal variations of pressure and temperature inside a borehole in response to an applied perturbation (pumping of air from the borehole). We compare the semi-analytical solution with predictions from the TOUGH2 numerical simulator. Based on the semi-analytical solution, we propose a method to estimate the permeability of the fracture continuum surrounding the borehole. Using this proposed method, we estimated the effective fracture continuum permeability of the unsaturated rock hosting the Drift Scale Test (DST) at Yucca Mountain, Nevada. Our estimate compares well with previous independent estimates for fracture permeability of the DST host rock. The conceptual model of FFTL presented in this paper is based on the assumptions of single-phase flow, convection-only heat transfer, and negligible change in system state of the rock formation. In a sequel paper [Mukhopadhyay et al., 2008], we extend the conceptual model to evaluate some of these assumptions. We also perform inverse modeling of FFTL data to estimate, in addition to permeability, other transport parameters (such as porosity and thermal conductivity) of unsaturated fractured rocks.

  14. Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture

    DOE Patents [OSTI]

    Lassahn, Gordon D.; Lancaster, Gregory D.; Apel, William A.; Thompson, Vicki S.

    2013-01-08

    Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture are described. According to one embodiment, an image portion identification method includes accessing data regarding an image depicting a plurality of biological substrates corresponding to at least one biological sample and indicating presence of at least one biological indicator within the biological sample and, using processing circuitry, automatically identifying a portion of the image depicting one of the biological substrates but not others of the biological substrates.

  15. Imaging through scattering

    E-Print Network [OSTI]

    Satat, Guy

    2015-01-01

    In this thesis we demonstrate novel methods to overcome optical scattering in order to resolve information about hidden scenes, in particular for biomedical applications. Imaging through scattering media has long been a ...

  16. Photothermal imaging scanning microscopy

    DOE Patents [OSTI]

    Chinn, Diane (Pleasanton, CA); Stolz, Christopher J. (Lathrop, CA); Wu, Zhouling (Pleasanton, CA); Huber, Robert (Discovery Bay, CA); Weinzapfel, Carolyn (Tracy, CA)

    2006-07-11

    Photothermal Imaging Scanning Microscopy produces a rapid, thermal-based, non-destructive characterization apparatus. Also, a photothermal characterization method of surface and subsurface features includes micron and nanoscale spatial resolution of meter-sized optical materials.

  17. Quantum-mimetic imaging

    E-Print Network [OSTI]

    Venkatraman, Dheera

    2015-01-01

    Many recent experiments have explored the use of nonclassical states of light to perform imaging or sensing. Although these experiments require quantum descriptions of light to explain their behavior, the advantages they ...

  18. Building an urban image

    E-Print Network [OSTI]

    Russin, Andrew J

    1992-01-01

    This design project explores the principles of "urban legibility" and "shared space". The readability, or imageability (in Kevin Lynch's term) of a city results from the recognition of larger urban patterns, organizations, ...

  19. Reflective optical imaging system

    DOE Patents [OSTI]

    Shafer, David R. (Fairfield, CT)

    2000-01-01

    An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

  20. The SDSS Imaging Pipelines

    E-Print Network [OSTI]

    Robert Lupton; James E. Gunn; Zeljko Ivezic; Gillian R. Knapp; Stephen Kent; Naoki Yasuda

    2001-05-24

    We summarise the properties of the Sloan Digital Sky Survey (SDSS) project, discuss our software infrastructure, and outline the architecture of the SDSS image processing pipelines. We then discuss two of the algorithms used in the SDSS image processing; the KL-transform based modelling of the spatial variation of the PSF, and the use of galaxy models in star/galaxy separation. We conclude with the first author's personal opinions on the challenges that the astronomical community faces with major software projects.

  1. Cascaded systems analysis of noise reduction algorithms in dual-energy imaging

    SciTech Connect (OSTI)

    Richard, Samuel; Siewerdsen, Jeffrey H. [Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2M9 (Canada); Ontario Cancer Institute, Princess Margaret Hospital, Toronto, Ontario M5G 2M9 (Canada) and Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2M9 (Canada)

    2008-02-15

    An important aspect of dual-energy (DE) x-ray image decomposition is the incorporation of noise reduction techniques to mitigate the amplification of quantum noise. This article extends cascaded systems analysis of imaging performance to DE imaging systems incorporating linear noise reduction algorithms. A general analytical formulation of linear DE decomposition is derived, with weighted log subtraction and several previously reported noise reduction algorithms emerging as special cases. The DE image noise-power spectrum (NPS) and modulation transfer function (MTF) demonstrate that noise reduction algorithms impart significant, nontrivial effects on the spatial-frequency-dependent transfer characteristics which do not cancel out of the noise-equivalent quanta (NEQ). Theoretical predictions were validated in comparison to the measured NPS and MTF. The resulting NEQ was integrated with spatial-frequency-dependent task functions to yield the detectability index, d{sup '}, for evaluation of DE imaging performance using different decomposition algorithms. For a 3 mm lung nodule detection task, the detectability index varied from d{sup '}<1 (i.e., nodule barely visible) in the absence of noise reduction to d{sup '}>2.5 (i.e., nodule clearly visible) for ''anti-correlated noise reduction'' (ACNR) or ''simple-smoothing of the high-energy image'' (SSH) algorithms applied to soft-tissue or bone-only decompositions, respectively. Optimal dose allocation (A{sup *}, the fraction of total dose delivered in the low-energy projection) was also found to depend on the choice of noise reduction technique. At fixed total dose, multi-function optimization suggested a significant increase in optimal dose allocation from A{sup *}=0.32 for conventional log subtraction to A{sup *}=0.79 for ACNR and SSH in soft-tissue and bone-only decompositions, respectively. Cascaded systems analysis extended to the general formulation of DE image decomposition provided an objective means of investigating DE imaging performance across a broad range of acquisition and decomposition algorithms in a manner that accounts for the spatial-frequency-dependent imaging task.

  2. ARTICLE IN PRESS YJNTH:3811 Please cite this article in press as: S. Gun et al., Transcendence of the log gamma function and some discrete periods, J.

    E-Print Network [OSTI]

    Murty, Ram

    ARTICLE IN PRESS YJNTH:3811 Please cite this article in press as: S. Gun et al., Transcendence.elsevier.com/locate/jnt Transcendence of the log gamma function and some discrete periods Sanoli Gun 1,2 , M. Ram Murty ,3 , Purusottam-mail addresses: sanoli@imsc.res.in (S. Gun), murty@mast.queensu.ca (M.R. Murty), rath@cmi.ac.in (P. Rath). 1

  3. Fluid Imaging of Enhanced Geothermal Systems

    Broader source: Energy.gov [DOE]

    Project objectives: Attempting to Image EGS Fracture & Fluid Networks; Employing joint Geophysical Imaging Technologies.

  4. Content-Aware Image enhancement

    E-Print Network [OSTI]

    Schettini, Raimondo

    1 Content-Aware Image enhancement R. Schettini www.ivl.disco.unimib.it 8 Faculties, 61 Degree Recognition Content-based retrieval Quality Assessment Content-Aware Image Enhancement Presentation Outline Processing Content aware image enhancement We focus here on image based features. And show how to exploit

  5. BAYESIAN ENSEMBLE LEARNING FOR MEDICAL IMAGE DENOISING

    E-Print Network [OSTI]

    Oh, Hyuntaek

    2012-08-31

    Medical images are often affected by random noise because of both image acquisition from the medical modalities and image transmission from modalities to workspace in the main computer. Medical image denoising removes noise from the CT or MR images...

  6. Microbial Cell Imaging

    SciTech Connect (OSTI)

    Doktycz, Mitchel John; Sullivan, Claretta; Mortensen, Ninell P; Allison, David P

    2011-01-01

    Atomic force microscopy (AFM) is finding increasing application in a variety of fields including microbiology. Until the emergence of AFM, techniques for ivnestigating processes in single microbes were limited. From a biologist's perspective, the fact that AFM can be used to generate high-resolution images in buffers or media is its most appealing feature as live-cell imaging can be pursued. Imaging living cells by AFM allows dynamic biological events to be studied, at the nanoscale, in real time. Few areas of biological research have as much to gain as microbiology from the application of AFM. Whereas the scale of microbes places them near the limit of resolution for light microscopy. AFM is well suited for the study of structures on the order of a micron or less. Although electron microscopy techniques have been the standard for high-resolution imaging of microbes, AFM is quickly gaining favor for several reasons. First, fixatives that impair biological activity are not required. Second, AFM is capable of detecting forces in the pN range, and precise control of the force applied to the cantilever can be maintained. This combination facilitates the evaluation of physical characteristics of microbes. Third, rather than yielding the composite, statistical average of cell populations, as is the case with many biochemical assays, the behavior of single cells can be monitored. Despite the potential of AFM in microbiology, there are several limitations that must be considered. For example, the time required to record an image allows for the study of gross events such as cell division or membrane degradation from an antibiotic but precludes the evaluation of biological reactions and events that happen in just fractions of a second. Additionally, the AFM is a topographical tool and is restricted to imaging surfaces. Therefore, it cannot be used to look inside cells as with opticla and transmission electron microscopes. other practical considerations are the limitation on the maximum scan size (roughly 100 x 100 {mu}m) and the restricted movement of the cantilever in the Z (or height) direction. In most commercial AFMs, the Z range is restricted to roughly 10 {mu}m such that the height of cells to be imaged must be seriously considered. Nevertheless, AFM can provide structural-functional information at nanometer resolution and do so in physiologically relevant environments. Further, instrumentation for scanning probe microscopy continues to advance. Systems for high-speed imaging are becoming available, and techniques for looking inside the cells are being demonstrated. The ability to combine AFM with other imaging modalities is likely to have an even greater impact on microbiological studies. AFM studies of intact microbial cells started to appear in the literature in the 1990s. For example, AFM studies of Saccharomyces cerevisiae examined buddings cars after cell division and detailed changes related to cell growth processes. Also, the first AFM studies of bacterial biofilms appeared. In the late 1990s, AFM studies of intact fungal spores described clear changes in spore surfaces upon germination, and studies of individual bacterial cells were also described. These early bacterial imaging studies examined changes in bacterial morphology due to antimicrobial peptides exposure and bacterial adhesion properties. The majority of these early studies were carried out on dried samples and took advantage of the resolving power of AFM. The lack of cell mounting procedures presented an impediment for cell imaging studies. Subsequently, several approaches to mounting microbial cells have been developed, and these techniques are described later. Also highlighted are general considerations for microbial imaging and a description of some of the various applications of AFM to microbiology.

  7. Multispectral imaging probe

    DOE Patents [OSTI]

    Sandison, D.R.; Platzbecker, M.R.; Descour, M.R.; Armour, D.L.; Craig, M.J.; Richards-Kortum, R.

    1999-07-27

    A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector. 8 figs.

  8. New algorithms and technologies for the un-supervised reduction of Optical/IR images

    E-Print Network [OSTI]

    Benoit Vandame

    2002-08-12

    This paper presents some of the main aspects of the software library that has been developed for the reduction of optical and infrared images, an integral part of the end-to-end survey system being built to support public imaging surveys at ESO. Some of the highlights of the new library are: unbiased estimates of the background, critical for deep IR observations; efficient and accurate astrometric solutions, using multi-resolution techniques; automatic identification and masking of satellite tracks; weighted co-addition of images; creation of optical/IR mosaics, and appropriate management of multi-chip instruments. These various elements have been integrated into a system using XML technology for setting input parameters, driving the various processes, producing comprehensive history logs and storing the results, binding them to the supporting database and to the web. The system has been extensively tested using deep images as well as images of crowded fields (e.g. globular clusters, LMC), processing at a rate of 0.5 Mega-pixels per second using a DS20E ALPHA computer with two processors. The goal of this presentation is to review some of the main features of this package.

  9. Imaging agents for in vivo magnetic resonance and scintigraphic imaging

    DOE Patents [OSTI]

    Engelstad, B.L.; Raymond, K.N.; Huberty, J.P.; White, D.L.

    1991-04-23

    Methods are provided for in vivo magnetic resonance imaging and/or scintigraphic imaging of a subject using chelated transition metal and lanthanide metal complexes. Novel ligands for these complexes are provided. No Drawings

  10. Image Charge Differential

    E-Print Network [OSTI]

    Weston, Ken

    Image Charge Differential Amplifier FT 0 Crude Oil Time (s) 543210 Frequency (kHz) m/z m q B f organic molecules such as heavy crude oils. Heavy crudes are some of the most complex organic mixtures found in nature. As the crude oil industry grows in size and demand for crude oil increases, techniques

  11. Time-Encoded Imagers.

    SciTech Connect (OSTI)

    Marleau, Peter; Brubaker, Erik

    2014-11-01

    This report provides a short overview of the DNN R&D funded project, Time-Encoded Imagers. The project began in FY11 and concluded in FY14. The Project Description below provides the overall motivation and objectives for the project as well as a summary of programmatic direction. It is followed by a short description of each task and the resulting deliverables.

  12. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the National Park Service: Golden Gate National Recreation Area

    SciTech Connect (OSTI)

    Stephen Schey; Jim Francfort

    2014-03-01

    Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy's Idaho National Laboratory, is the lead laboratory for U.S. Department of Energy Advanced Vehicle Testing. Battelle Energy Alliance, LLC contracted with Intertek Testing Services, North America (ITSNA) to collect data on federal fleet operations as part of the Advanced Vehicle Testing Activity's Federal Fleet Vehicle Data Logging and Characterization study. The Advanced Vehicle Testing Activity study seeks to collect data to validate the utilization of advanced electric drive vehicle transportation. This report focuses on the Golden Gate National Recreation Area (GGNRA) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies' fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle or plug-in hybrid electric vehicle (PHEV) (collectively PEVs) can fulfill the mission requirements. GGNRA identified 182 vehicles in its fleet, which are under the management of the U.S. General Services Administration. Fleet vehicle mission categories are defined in Section 4, and while the GGNRA vehicles conduct many different missions, only two (i.e., support and law enforcement missions) were selected by agency management to be part of this fleet evaluation. The selected vehicles included sedans, trucks, and sport-utility vehicles. This report will show that battery electric vehicles and/or PHEVs are capable of performing the required missions and providing an alternative vehicle for support vehicles and PHEVs provide the same for law enforcement, because each has a sufficient range for individual trips and time is available each day for charging to accommodate multiple trips per day. These charging events could occur at the vehicle home base, high-use work areas, or intermediately along routes that the vehicles frequently travel. Replacement of vehicles in the current fleet would result in significant reductions in the emission of greenhouse gases and petroleum use, while also reducing fuel costs. The San Francisco Bay Area is a leader in the adoption of PEVs in the United States. PEV charging stations, or more appropriately identified as electric vehicle supply equipment, located on the GGNRA facility would be a benefit for both GGNRA fleets and general public use. Fleet drivers and park visitors operating privately owned PEVs benefit by using the charging infrastructure. ITSNA recommends location analysis of the GGNRA site to identify the optimal placement of the electric vehicle supply equipment station. ITSNA recognizes the support of Idaho National Laboratory and ICF International for their efforts to initiate communication with the National Parks Service and GGNRA for participation in the study. ITSNA is pleased to provide this report and is encouraged by the high interest and support from the National Park Service and GGNRA personnel.

  13. Image Utility Assessment and a Relationship with Image Quality Assessment

    E-Print Network [OSTI]

    Hemami, Sheila S.

    Image Utility Assessment and a Relationship with Image Quality Assessment David M. Rouse , Romuald information to humans, and this paper investigates the utility assessment task, where human observers evaluate the usefulness of a natural image as a surrogate for a reference. Current QA algorithms implicitly assess utility

  14. Efficient MR Image Reconstruction for Compressed MR Imaging

    E-Print Network [OSTI]

    Huang, Junzhou

    demonstrate the superior performance of the proposed algorithm for com- pressed MR image reconstruction. 1 [1][2] show that it is possi- ble to accurately reconstruct the Magnetic Resonance (MR) images from for real MR images. Computation became the bottleneck that prevented this good model (1) from being used

  15. Array combination for parallel imaging in Magnetic Resonance Imaging 

    E-Print Network [OSTI]

    Spence, Dan Kenrick

    2007-09-17

    In Magnetic Resonance Imaging, the time required to generate an image is proportional to the number of steps used to encode the spatial information. In rapid imaging, an array of coil elements and receivers are used to reduce the number of encoding...

  16. Instruments High-resolution imaging of

    E-Print Network [OSTI]

    Boppart, Stephen

    Instruments & Methods High-resolution imaging of gynecologic neoplasms using optical coherence and Gynecologists.) Diagnostic imaging methods available to gynecologists include magnetic resonance imaging (MRI

  17. Image texture analysis of elastograms 

    E-Print Network [OSTI]

    Hussain, Fasahat

    1999-01-01

    and developed to make it a commercial product. 'This research applies image texture analysis to computer generated elastograms to obtain effective texture features. Four image analysis techniques, no-occurrence statistics, wavelet decomposition, frontal analysis...

  18. Topics in genomic image processing 

    E-Print Network [OSTI]

    Hua, Jianping

    2006-04-12

    The image processing methodologies that have been actively studied and developed now play a very significant role in the flourishing biotechnology research. This work studies, develops and implements several image processing techniques for M...

  19. Digital holographic imaging of microorganisms

    E-Print Network [OSTI]

    Wolf, Michael Trevor

    2006-01-01

    Imaging aquatic microorganisms in 3D space is of interest to biologists and ocean scientists seeking to understand the behavior of these organisms in their natural environments. In this research, digital holographic imaging ...

  20. Reservoir characterization of the Melbourn and F-39 sands in the Lavaca Bay field using integration of log, core and production data 

    E-Print Network [OSTI]

    Hong, Cecelia

    1993-01-01

    ) is an expression for ratio of water saturation in the uninvaded and flushed zones. Rw was estimated using Equaflon (3. 1d) Rmf was obtained from the log heading and corrected to Tf . . (3. 1d) where: K= 60+0. 133 Tf Assumption: R deep = Rt R shallow = Rxo... to conduct electricity and this accounts for Ro ) Rw. Rw is the resistivity of the formation water only. Ro is proportional to Rw The formation factor, F is the proportionality constant. Ro = F~Rw. . . (3. 3a) Using Archie's water saturation equation...

  1. Fourier Analysis of Ghost Imaging

    E-Print Network [OSTI]

    Honglin Liu; Jing Cheng; Yanfeng Bai; Shensheng Han

    2006-09-28

    Fourier analysis of ghost imaging (FAGI) is proposed in this paper to analyze the properties of ghost imaging with thermal light sources. This new theory is compatible with the general correlation theory of intensity fluctuation and could explain some amazed phenomena. Furthermore we design a series of experiments to verify the new theory and investigate the inherent properties of ghost imaging.

  2. Chester F. Carlson Imaging Science?

    E-Print Network [OSTI]

    Salvaggio, Carl

    GRADUATE STUDIES Chester F. Carlson CENTERfor IMAGING SCIENCE GORITHM 60 (b) #12;What is Imaging Science? Imaging Scientists work with science and technology that is focused on the creation. Research areas include: Remote Sensing Vision and Perception Astronomy and Space Science Computational

  3. Biomechanics Volumetric imaging of fish

    E-Print Network [OSTI]

    Lauder, George V.

    Biomechanics Volumetric imaging of fish locomotion Brooke E. Flammang1,*, George V. Lauder1, Daniel stability in a complex fluid environ- ment. We used a new approach, a volumetric velocimetry imaging system into the caudal fin vortex wake. These results show that volumetric imaging of biologi- cally generated flow

  4. Multimode imaging device

    DOE Patents [OSTI]

    Mihailescu, Lucian; Vetter, Kai M

    2013-08-27

    Apparatus for detecting and locating a source of gamma rays of energies ranging from 10-20 keV to several MeV's includes plural gamma ray detectors arranged in a generally closed extended array so as to provide Compton scattering imaging and coded aperture imaging simultaneously. First detectors are arranged in a spaced manner about a surface defining the closed extended array which may be in the form a circle, a sphere, a square, a pentagon or higher order polygon. Some of the gamma rays are absorbed by the first detectors closest to the gamma source in Compton scattering, while the photons that go unabsorbed by passing through gaps disposed between adjacent first detectors are incident upon second detectors disposed on the side farthest from the gamma ray source, where the first spaced detectors form a coded aperture array for two or three dimensional gamma ray source detection.

  5. Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging

    E-Print Network [OSTI]

    Yin, Wotao

    Fast Algorithms for Image Reconstruction with Application to Partially Parallel MR Imaging Yunmei. Key words. Image reconstruction, Variable splitting, TV denoising, Nonlinear optimization 1 from an emerging magnetic resonance (MR) medical imaging technique known as partially parallel imaging

  6. IMPROVED V I log(gf) VALUES AND ABUNDANCE DETERMINATIONS IN THE PHOTOSPHERES OF THE SUN AND METAL-POOR STAR HD 84937

    SciTech Connect (OSTI)

    Lawler, J. E.; Wood, M. P.; Den Hartog, E. A.; Feigenson, T.; Sneden, C.; Cowan, J. J. E-mail: mpwood@wisc.edu E-mail: tfeigenson@wisc.edu E-mail: cowan@nhn.ou.edu

    2015-01-01

    New emission branching fraction measurements for 836 lines of the first spectrum of vanadium (V I) are determined from hollow cathode lamp spectra recorded with the National Solar Observatory 1 m Fourier transform spectrometer (FTS) and a high-resolution echelle spectrometer. The branching fractions are combined with recently published radiative lifetimes from laser-induced fluorescence measurements to determine accurate absolute atomic transition probabilities for the 836 lines. The FTS data are also used to extract new hyperfine structure A coefficients for 26 levels of neutral vanadium. These new laboratory data are applied to determine the V abundance in the Sun and metal-poor star HD 84937, yielding log ?(V) = 3.956 ± 0.004 (? = 0.037) based on 93 V I lines and log ?(V) = 1.89 ± 0.03 (? = 0.07) based on nine V I lines, respectively, using the Holweger-Müller 1D model. These new V I abundance values for the Sun and HD 84937 agree well with our earlier determinations based upon V II.

  7. Bistatic SAR: Imagery & Image Products.

    SciTech Connect (OSTI)

    Yocky, David A.; Wahl, Daniel E.; Jakowatz, Charles V,

    2014-10-01

    While typical SAR imaging employs a co-located (monostatic) RADAR transmitter and receiver, bistatic SAR imaging separates the transmitter and receiver locations. The transmitter and receiver geometry determines if the scattered signal is back scatter, forward scatter, or side scatter. The monostatic SAR image is backscatter. Therefore, depending on the transmitter/receiver collection geometry, the captured imagery may be quite different that that sensed at the monostatic SAR. This document presents imagery and image products formed from captured signals during the validation stage of the bistatic SAR research. Image quality and image characteristics are discussed first. Then image products such as two-color multi-view (2CMV) and coherent change detection (CCD) are presented.

  8. Photogrammetry & Machine Vision 1. Image sensors

    E-Print Network [OSTI]

    Giger, Christine

    Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image. Remondino, N. D'Apuzzo Photogrammetry and Machine Vision ­ 1. Measurement in images (b) Camera calibration of Photogrammetry and Machine Vision Fully understand: 1. Image based 3D and 4D measurement 2. Image based 3D

  9. Device for wavelength-selective imaging

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2010-09-14

    An imaging device captures both a visible light image and a diagnostic image, the diagnostic image corresponding to emissions from an imaging medium within the object. The visible light image (which may be color or grayscale) and the diagnostic image may be superimposed to display regions of diagnostic significance within a visible light image. A number of imaging media may be used according to an intended application for the imaging device, and an imaging medium may have wavelengths above, below, or within the visible light spectrum. The devices described herein may be advantageously packaged within a single integrated device or other solid state device, and/or employed in an integrated, single-camera medical imaging system, as well as many non-medical imaging systems that would benefit from simultaneous capture of visible-light wavelength images along with images at other wavelengths.

  10. MULTISPECTRAL THERMAL IMAGER - OVERVIEW

    SciTech Connect (OSTI)

    P. WEBER

    2001-03-01

    The Multispectral Thermal Imager satellite fills a new and important role in advancing the state of the art in remote sensing sciences. Initial results with the full calibration system operating indicate that the system was already close to achieving the very ambitious goals which we laid out in 1993, and we are confident of reaching all of these goals as we continue our research and improve our analyses. In addition to the DOE interests, the satellite is tasked about one-third of the time with requests from other users supporting research ranging from volcanology to atmospheric sciences.

  11. Multiprocessor computing for images

    SciTech Connect (OSTI)

    Cantoni, V. ); Levialdi, S. )

    1988-08-01

    A review of image processing systems developed until now is given, highlighting the weak points of such systems and the trends that have dictated their evolution through the years producing different generations of machines. Each generation may be characterized by the hardware architecture, the programmability features and the relative application areas. The need for multiprocessing hierarchical systems is discussed focusing on pyramidal architectures. Their computational paradigms, their virtual and physical implementation, their programming and software requirements, and capabilities by means of suitable languages, are discussed.

  12. Superconductive imaging surface magnetometer

    DOE Patents [OSTI]

    Overton, Jr., William C. (Los Alamos, NM); van Hulsteyn, David B. (Santa Fe, NM); Flynn, Edward R. (Los Alamos, NM)

    1991-01-01

    An improved pick-up coil system for use with Superconducting Quantum Interference Device gradiometers and magnetometers involving the use of superconducting plates near conventional pick-up coil arrangements to provide imaging of nearby dipole sources and to deflect environmental magnetic noise away from the pick-up coils. This allows the practice of gradiometry and magnetometry in magnetically unshielded environments. One embodiment uses a hemispherically shaped superconducting plate with interior pick-up coils, allowing brain wave measurements to be made on human patients. another embodiment using flat superconducting plates could be used in non-destructive evaluation of materials.

  13. The Cosmic Background Imager

    E-Print Network [OSTI]

    S. Padin; M. C. Shepherd; J. K. Cartwright; R. G. Keeney; B. S. Mason; T. J. Pearson; A. C. S. Readhead; W. L. Schaal; J. Sievers; P. S. Udomprasert; J. K. Yamasaki; W. L. Holzapfel; J. E. Carlstrom; M. Joy; S. T. Myers; A. Otarola

    2001-10-05

    Design and performance details are given for the Cosmic Background Imager (CBI), an interferometer array that is measuring the power spectrum of fluctuations in the cosmic microwave background radiation (CMBR) for multipoles in the range 400 switching scheme is used to reject cross-talk and low-frequency pick-up in the signal processing system. The CBI has a 3-axis mount which allows the tracking platform to be rotated about the optical axis, providing improved (u,v) coverage and a powerful discriminant against false signals generated in the receiving electronics. Rotating the tracking platform also permits polarization measurements when some of the antennas are configured for the orthogonal polarization.

  14. Radiation imaging apparatus

    DOE Patents [OSTI]

    Anger, H.O.; Martin, D.C.; Lampton, M.L.

    1983-07-26

    A radiation imaging system using a charge multiplier and a position sensitive anode in the form of periodically arranged sets of interconnected anode regions for detecting the position of the centroid of a charge cloud arriving thereat from the charge multiplier. Various forms of improved position sensitive anodes having single plane electrode connections are disclosed. Various analog and digital signal processing systems are disclosed, including systems which use the fast response of microchannel plates, anodes and preamps to perform scintillation pulse height analysis digitally. 15 figs.

  15. Radiation imaging apparatus

    DOE Patents [OSTI]

    Anger, Hal O. (Berkeley, CA); Martin, Donn C. (Berkeley, CA); Lampton, Michael L. (Berkeley, CA)

    1983-01-01

    A radiation imaging system using a charge multiplier and a position sensitive anode in the form of periodically arranged sets of interconnected anode regions for detecting the position of the centroid of a charge cloud arriving thereat from the charge multiplier. Various forms of improved position sensitive anodes having single plane electrode connections are disclosed. Various analog and digital signal processing systems are disclosed, including systems which use the fast response of microchannel plates, anodes and preamps to perform scintillation pulse height analysis digitally.

  16. User Defined Images

    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 WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopmentat LENA|Upcoming Purchasing andUser Defined Images User

  17. ImageJ

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,PrincipalIdaho NationalAImageJ ImageJ

  18. Iterative Electromagnetic Born Inversion Applied to Earth Conductivity Imaging

    E-Print Network [OSTI]

    Alumbaugh, D.L.

    1993-01-01

    variation due to steam flooding: a log study: Geophysics,electromagnetic induction for steam flooding monitoring, 62'as steam injection, in situ combustion,water flooding and

  19. Fourier plane image amplifier

    DOE Patents [OSTI]

    Hackel, L.A.; Hermann, M.R.; Dane, C.B.; Tiszauer, D.H.

    1995-12-12

    A solid state laser is frequency tripled to 0.3 {micro}m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only about 1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power. 1 fig.

  20. Fourier plane image amplifier

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Hermann, Mark R. (San Ramon, CA); Dane, C. Brent (Livermore, CA); Tiszauer, Detlev H. (Tracy, CA)

    1995-01-01

    A solid state laser is frequency tripled to 0.3 .mu.m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only .about.1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power.

  1. Image-based occupancy sensor

    DOE Patents [OSTI]

    Polese, Luigi Gentile; Brackney, Larry

    2015-05-19

    An image-based occupancy sensor includes a motion detection module that receives and processes an image signal to generate a motion detection signal, a people detection module that receives the image signal and processes the image signal to generate a people detection signal, a face detection module that receives the image signal and processes the image signal to generate a face detection signal, and a sensor integration module that receives the motion detection signal from the motion detection module, receives the people detection signal from the people detection module, receives the face detection signal from the face detection module, and generates an occupancy signal using the motion detection signal, the people detection signal, and the face detection signal, with the occupancy signal indicating vacancy or occupancy, with an occupancy indication specifying that one or more people are detected within the monitored volume.

  2. Lensless Imaging of Magnetic Nanostructures

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

    Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying...

  3. Hybrid tomography for conductivity imaging

    E-Print Network [OSTI]

    T. Widlak; O. Scherzer

    2012-03-20

    Hybrid imaging techniques utilize couplings of physical modalities -- they are called hybrid, because, typically, the excitation and measurement quantities belong to different modalities. Recently there has been an enormous research interest in this area because these methods promise very high resolution. In this paper we give a review on hybrid tomography methods for \\emph{electrical conductivity} imaging. The reviewed imaging methods utilize couplings between electric, magnetic and ultrasound modalities. By this it is possible to perform high-resolution electrical impedance imaging and to overcome the low-resolution problem of electric impedance tomography.

  4. Lensless Imaging of Magnetic Nanostructures

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

    this technique has been especially popular in imaging such complex structures as aerogels and yeast cells. When applying the CDI technique to a magnetic system, the same...

  5. Basalt features observed in outcrops, cores, borehole video imagery and geophysical logs, and basalt hydrogeologic study at the Idaho National Engineering Laboratory, Eastern Idaho

    SciTech Connect (OSTI)

    Bennecke, W.M.

    1996-10-01

    A study was undertaken to examine permeable zones identified in boreholes open to the underlying basalt and to describe the vertical cross flows present in the boreholes. To understand the permeable zones in the boreholes detailed descriptions and measurements of three outcrops in the Snake River Plain, three cores at the Idaho Chemical Processing Plant (ICPP) at the INEL, and over fifty borehole TV logs from the INEL were carried out. Based on the observations made on the three outcrops an idealized basalt lava flow model was generated that used a set of nomenclature that would be standard for the basalt lava flows studied. An upper vesicular zone, a sometimes absent columnar zone, central zone, and lower vesicular zone make up the basalt lava flow model. The overall distinction between the different zones are based on the vesicle shape size, vesicularity, and fractures present. The results of the studies also indicated that the basalt lava flows at the INEL are distal to medial facies pahoehoe lava flows with close fitting contacts. The most permeable zones identified in these basalts are fractured vesiculated portions of the top of the lava flow, the columnar areas, and basalt-flow contacts in order of importance. This was determined from impeller flowmeter logging at the INEL. Having this information a detailed stratigraphy of individual basalt lava flows and the corresponding permeable units were generated. From this it was concluded that groundwater flow at the ICPP prefers to travel along thin basalt lava flows or flow-units. Flow direction and velocity of intrawell flows detected by flowmeter is controlled by a nearby pumping well.

  6. Toponome Imaging System (TIS): imaging the proteome with functional resolution

    E-Print Network [OSTI]

    Cai, Long

    established as an automated imaging technology capable of high- performance, high-content applications at continuous intensity levels for the first time.TIS directly addresses protein-network architecture. A breakthrough in fluorescence imaging has been reported using multi-epitope-ligand cartography (MELC) technology

  7. MANSFIELD ET AL.: TRANSFORMING IMAGE COMPLETION 1 Transforming Image Completion

    E-Print Network [OSTI]

    Kohli, Pushmeet

    .K. Abstract Image completion is an important photo-editing task which involves synthetically filling a hole-of-the-art techniques. 1 Introduction Image completion is an important photo-editing task which involves synthetically the pixel traversal order critical. A number of user-driven [12] and intelligent [3] heuristics have been

  8. Application of Parallel Imaging to Murine Magnetic Resonance Imaging 

    E-Print Network [OSTI]

    Chang, Chieh-Wei 1980-

    2012-09-21

    . This dissertation describes foundational level work to enable parallel imaging of mice on a 4.7 Tesla/40 cm bore research scanner. Reducing the size of the hardware setup associated with typical parallel imaging was an integral part of achieving the work, as animal...

  9. T-R Cycle Characterization and Imaging: Advanced Diagnostic Methodology for Petroleum Reservoir and Trap Detection and Delineation

    SciTech Connect (OSTI)

    Ernest A. Mancini

    2006-08-30

    Characterization of stratigraphic sequences (T-R cycles or sequences) included outcrop studies, well log analysis and seismic reflection interpretation. These studies were performed by researchers at the University of Alabama, Wichita State University and McGill University. The outcrop, well log and seismic characterization studies were used to develop a depositional sequence model, a T-R cycle (sequence) model, and a sequence stratigraphy predictive model. The sequence stratigraphy predictive model developed in this study is based primarily on the modified T-R cycle (sequence) model. The T-R cycle (sequence) model using transgressive and regressive systems tracts and aggrading, backstepping, and infilling intervals or sections was found to be the most appropriate sequence stratigraphy model for the strata in the onshore interior salt basins of the Gulf of Mexico to improve petroleum stratigraphic trap and specific reservoir facies imaging, detection and delineation. The known petroleum reservoirs of the Mississippi Interior and North Louisiana Salt Basins were classified using T-R cycle (sequence) terminology. The transgressive backstepping reservoirs have been the most productive of oil, and the transgressive backstepping and regressive infilling reservoirs have been the most productive of gas. Exploration strategies were formulated using the sequence stratigraphy predictive model and the classification of the known petroleum reservoirs utilizing T-R cycle (sequence) terminology. The well log signatures and seismic reflector patterns were determined to be distinctive for the aggrading, backstepping and infilling sections of the T-R cycle (sequence) and as such, well log and seismic data are useful for recognizing and defining potential reservoir facies. The use of the sequence stratigraphy predictive model, in combination with the knowledge of how the distinctive characteristics of the T-R system tracts and their subdivisions are expressed in well log patterns and seismic reflection configurations and terminations, improves the ability to identify and define the limits of potential stratigraphic traps and the stratigraphic component of combination stratigraphic and structural traps and the associated continental, coastal plain and marine potential reservoir facies. The assessment of the underdeveloped and undiscovered reservoirs and resources in the Mississippi Interior and North Louisiana Salt Basins resulted in the confirmation of the Monroe Uplift as a feature characterized by a major regional unconformity, which serves as a combination stratigraphic and structural trap with a significant stratigraphic component, and the characterization of a developing play in southwest Alabama, which involves a stratigraphic trap, located updip near the pinchout of the potential reservoir facies. Potential undiscovered and underdeveloped reservoirs in the onshore interior salt basins are identified as Jurassic and Cretaceous aggrading continental and coastal, backstepping nearshore marine and marine shelf, and infilling fluvial, deltaic, coastal plain and marine shelf.

  10. Nonlinear digital imaging

    E-Print Network [OSTI]

    Lu, Jen-Tang; Fleischer, Jason W

    2015-01-01

    Nonlinear imaging systems can surpass the limits of linear optics, but to date they have all relied on physical media (e.g. crystals) to work. These materials are all constrained by their physical properties, such as frequency selectivity, environmental sensitivity, time behavior, and fixed nonlinear response. Here, we show that electro-optic spatial light modulators (SLMs) can take the place of traditional nonlinear media, provided that there is a feedback between the shape of the object and the pattern on the modulator. This feedback creates a designer illumination that generalizes the field of adaptive optics to include object-dependent patterns. Unlike physical media, the SLM response can provide arbitrary mathematical functions, operate over broad bandwidths at high speeds, and work equally well at high power and single-photon levels. We demonstrate the method experimentally for both coherent and incoherent light.

  11. Processing Visual Images

    SciTech Connect (OSTI)

    Litke, Alan (UC Santa Cruz) [UC Santa Cruz

    2006-03-27

    The back of the eye is lined by an extraordinary biological pixel detector, the retina. This neural network is able to extract vital information about the external visual world, and transmit this information in a timely manner to the brain. In this talk, Professor Litke will describe a system that has been implemented to study how the retina processes and encodes dynamic visual images. Based on techniques and expertise acquired in the development of silicon microstrip detectors for high energy physics experiments, this system can simultaneously record the extracellular electrical activity of hundreds of retinal output neurons. After presenting first results obtained with this system, Professor Litke will describe additional applications of this incredible technology.

  12. Imaging synthetic aperture radar

    DOE Patents [OSTI]

    Burns, Bryan L. (Tijeras, NM); Cordaro, J. Thomas (Albuquerque, NM)

    1997-01-01

    A linear-FM SAR imaging radar method and apparatus to produce a real-time image by first arranging the returned signals into a plurality of subaperture arrays, the columns of each subaperture array having samples of dechirped baseband pulses, and further including a processing of each subaperture array to obtain coarse-resolution in azimuth, then fine-resolution in range, and lastly, to combine the processed subapertures to obtain the final fine-resolution in azimuth. Greater efficiency is achieved because both the transmitted signal and a local oscillator signal mixed with the returned signal can be varied on a pulse-to-pulse basis as a function of radar motion. Moreover, a novel circuit can adjust the sampling location and the A/D sample rate of the combined dechirped baseband signal which greatly reduces processing time and hardware. The processing steps include implementing a window function, stabilizing either a central reference point and/or all other points of a subaperture with respect to doppler frequency and/or range as a function of radar motion, sorting and compressing the signals using a standard fourier transforms. The stabilization of each processing part is accomplished with vector multiplication using waveforms generated as a function of radar motion wherein these waveforms may be synthesized in integrated circuits. Stabilization of range migration as a function of doppler frequency by simple vector multiplication is a particularly useful feature of the invention; as is stabilization of azimuth migration by correcting for spatially varying phase errors prior to the application of an autofocus process.

  13. Image Processing Feb. 26, 2013

    E-Print Network [OSTI]

    Erdem, Erkut

    : Partial Differential Equations and the Calculus ofVariations, G. Aubert and P. Kornprobst, 2nd Edition later #12;About BIL717 · This course provides a comprehensive overview of fundamental topics in image ForVision And Image Processing, Edited by A. Blake, P. Kohli and C. Rother, MIT Press, 2011 #12

  14. Astronomical Image and Signal Processing

    E-Print Network [OSTI]

    Starck, Jean-Luc

    of the amount of information in the image. Shannon [38], in the framework of communication theory, suggested and where, and the statistical one, which gives a quantity rela- tive to the amount of information. Another to measure the informa- tion in an astronomical image, in both a statistical and a deterministic way

  15. Video surveillance with speckle imaging

    DOE Patents [OSTI]

    Carrano, Carmen J. (Livermore, CA); Brase, James M. (Pleasanton, CA)

    2007-07-17

    A surveillance system looks through the atmosphere along a horizontal or slant path. Turbulence along the path causes blurring. The blurring is corrected by speckle processing short exposure images recorded with a camera. The exposures are short enough to effectively freeze the atmospheric turbulence. Speckle processing is used to recover a better quality image of the scene.

  16. Simultaneous acquisition of differing image types

    DOE Patents [OSTI]

    Demos, Stavros G

    2012-10-09

    A system in one embodiment includes an image forming device for forming an image from an area of interest containing different image components; an illumination device for illuminating the area of interest with light containing multiple components; at least one light source coupled to the illumination device, the at least one light source providing light to the illumination device containing different components, each component having distinct spectral characteristics and relative intensity; an image analyzer coupled to the image forming device, the image analyzer decomposing the image formed by the image forming device into multiple component parts based on type of imaging; and multiple image capture devices, each image capture device receiving one of the component parts of the image. A method in one embodiment includes receiving an image from an image forming device; decomposing the image formed by the image forming device into multiple component parts based on type of imaging; receiving the component parts of the image; and outputting image information based on the component parts of the image. Additional systems and methods are presented.

  17. Pixel-level Image Fusion Algorithms for Multi-camera Imaging System

    E-Print Network [OSTI]

    Abidi, Mongi A.

    Pixel-level Image Fusion Algorithms for Multi-camera Imaging System A Thesis Presented of image fusion technologies in the multi sensor image fusion system and applications. With specific focus on pixel level image fusion, the process after the image registration is processed, we develop graphic user

  18. Reaction product imaging

    SciTech Connect (OSTI)

    Chandler, D.W. [Sandia National Laboratories, Livermore, CA (United States)

    1993-12-01

    Over the past few years the author has investigated the photochemistry of small molecules using the photofragment imaging technique. Bond energies, spectroscopy of radicals, dissociation dynamics and branching ratios are examples of information obtained by this technique. Along with extending the technique to the study of bimolecular reactions, efforts to make the technique as quantitative as possible have been the focus of the research effort. To this end, the author has measured the bond energy of the C-H bond in acetylene, branching ratios in the dissociation of HI, the energetics of CH{sub 3}Br, CD{sub 3}Br, C{sub 2}H{sub 5}Br and C{sub 2}H{sub 5}OBr dissociation, and the alignment of the CD{sub 3} fragment from CD{sub 3}I photolysis. In an effort to extend the technique to bimolecular reactions the author has studied the reaction of H with HI and the isotopic exchange reaction between H and D{sub 2}.

  19. Nuclear medicine imaging system

    DOE Patents [OSTI]

    Bennett, Gerald W. (East Moriches, NY); Brill, A. Bertrand (Shoreham, NY); Bizais, Yves J. C. (Upton, NY); Rowe, R. Wanda (Upton, NY); Zubal, I. George (Upton, NY)

    1986-01-01

    A nuclear medicine imaging system having two large field of view scintillation cameras mounted on a rotatable gantry and being movable diametrically toward or away from each other is disclosed. In addition, each camera may be rotated about an axis perpendicular to the diameter of the gantry. The movement of the cameras allows the system to be used for a variety of studies, including positron annihilation, and conventional single photon emission, as well as static orthogonal dual multi-pinhole tomography. In orthogonal dual multi-pinhole tomography, each camera is fitted with a seven pinhole collimator to provide seven views from slightly different perspectives. By using two cameras at an angle to each other, improved sensitivity and depth resolution is achieved. The computer system and interface acquires and stores a broad range of information in list mode, including patient physiological data, energy data over the full range detected by the cameras, and the camera position. The list mode acquisition permits the study of attenuation as a result of Compton scatter, as well as studies involving the isolation and correlation of energy with a range of physiological conditions.

  20. Image indexing using color correlograms

    DOE Patents [OSTI]

    Huang, Jing (Ossining, NY); Kumar, Shanmugasundaram Ravi (San Jose, CA); Mitra, Mandar (Calcutta, IN); Zhu, Wei-Jing (Ossining, NY)

    2001-01-01

    A color correlogram is a three-dimensional table indexed by color and distance between pixels which expresses how the spatial correlation of color changes with distance in a stored image. The color correlogram may be used to distinguish an image from other images in a database. To create a color correlogram, the colors in the image are quantized into m color values, c.sub.i . . . c.sub.m. Also, the distance values k.epsilon.[d] to be used in the correlogram are determined where [d] is the set of distances between pixels in the image, and where dmax is the maximum distance measurement between pixels in the image. Each entry (i, j, k) in the table is the probability of finding a pixel of color c.sub.i at a selected distance k from a pixel of color c.sub.i. A color autocorrelogram, which is a restricted version of the color correlogram that considers color pairs of the form (i,i) only, may also be used to identify an image.

  1. Imaging algorithms in radio interferometry

    E-Print Network [OSTI]

    R. J. Sault; T. A. Oosterloo

    2007-01-08

    The paper reviews progress in imaging in radio interferometry for the period 1993-1996. Unlike an optical telescope, the basic measurements of a radio interferometer (correlations between antennas) are indirectly related to a sky brightness image. In a real sense, algorithms and computers are the lenses of a radio interferometer. In the last 20 years, whereas interferometer hardware advances have resulted in improvements of a factor of a few, algorithm and computer advances have resulted in orders of magnitude improvement in image quality. Developing these algorithms has been a fruitful and comparatively inexpensive method of improving the performance of existing telescopes, and has made some newer telescopes possible. In this paper, we review recent developments in the algorithms used in the imaging part of the reduction process. What constitutes an `imaging algorithm'? Whereas once there was a steady `forward' progression in the reduction process of editing, calibrating, transforming and, finally, deconvolving, this is no longer true. The introduction of techniques such as self-calibration, and algorithms that go directly from visibilities to final images, have made the dividing lines less clear. Although we briefly consider self-calibration, for the purposes of this paper calibration issues are generally excluded. Most attention will be directed to the steps which form final images from the calibrated visibilities.

  2. BIOTROPICA 41(3): 369378 2009 10.1111/j.1744-7429.2008.00485.x Reduced-impact Logging has Little Effect on Temporal Activity of Frugivorous Bats

    E-Print Network [OSTI]

    Willig, Michael

    effects on local biodiversity. Many Neotropical bats of the family Phyllostomidae provide ecosystem). Indeed, the rate of habitat loss associated with anthropogenic activities is alarming (Soares-Filho et al with agriculture, cattle, and logging industries increased rapidly with improved access to previously remote areas

  3. Structured representation of images for language generation and image retrieval 

    E-Print Network [OSTI]

    Elliott, Desmond

    2015-06-29

    A photograph typically depicts an aspect of the real world, such as an outdoor landscape, a portrait, or an event. The task of creating abstract digital representations of images has received a great deal of attention ...

  4. Image Storage in Hot Vapors

    E-Print Network [OSTI]

    L. Zhao; T. Wang; Y. Xiao; S. F. Yelin

    2007-10-22

    We theoretically investigate image propagation and storage in hot atomic vapor. A $4f$ system is adopted for imaging and an atomic vapor cell is placed over the transform plane. The Fraunhofer diffraction pattern of an object in the object plane can thus be transformed into atomic Raman coherence according to the idea of ``light storage''. We investigate how the stored diffraction pattern evolves under diffusion. Our result indicates, under appropriate conditions, that an image can be reconstructed with high fidelity. The main reason for this procedure to work is the fact that diffusion of opposite-phase components of the diffraction pattern interfere destructively.

  5. Imaging Lithium Air Electrodes | ornl.gov

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

    Neutron Imaging Reveals Lithium Distribution in Lithium-Air Electrodes Agatha Bardoel - January 01, 2013 Image produced by neutron-computed tomography. The next step in...

  6. Nanoscale Chemical Imaging of a Working Catalyst

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

    Nanoscale Chemical Imaging of a Working Catalyst Nanoscale Chemical Imaging of a Working Catalyst Print Wednesday, 28 January 2009 00:00 The heterogeneous catalysts used in most...

  7. Interpretation of Flow Logs from Nevada Test Site Boreholes to Estimate Hydraulic conductivity Using Numerical Simulations Constrained by Single-Well Aquifer Tests

    SciTech Connect (OSTI)

    Garcia, C. Amanda; Halford, Keith J.; Laczniak, Randell J.

    2010-02-12

    Hydraulic conductivities of volcanic and carbonate lithologic units at the Nevada Test Site were estimated from flow logs and aquifer-test data. Borehole flow and drawdown were integrated and interpreted using a radial, axisymmetric flow model, AnalyzeHOLE. This integrated approach is used because complex well completions and heterogeneous aquifers and confining units produce vertical flow in the annular space and aquifers adjacent to the wellbore. AnalyzeHOLE simulates vertical flow, in addition to horizontal flow, which accounts for converging flow toward screen ends and diverging flow toward transmissive intervals. Simulated aquifers and confining units uniformly are subdivided by depth into intervals in which the hydraulic conductivity is estimated with the Parameter ESTimation (PEST) software. Between 50 and 150 hydraulic-conductivity parameters were estimated by minimizing weighted differences between simulated and measured flow and drawdown. Transmissivity estimates from single-well or multiple-well aquifer tests were used to constrain estimates of hydraulic conductivity. The distribution of hydraulic conductivity within each lithology had a minimum variance because estimates were constrained with Tikhonov regularization. AnalyzeHOLE simulated hydraulic-conductivity estimates for lithologic units across screened and cased intervals are as much as 100 times less than those estimated using proportional flow-log analyses applied across screened intervals only. Smaller estimates of hydraulic conductivity for individual lithologic units are simulated because sections of the unit behind cased intervals of the wellbore are not assumed to be impermeable, and therefore, can contribute flow to the wellbore. Simulated hydraulic-conductivity estimates vary by more than three orders of magnitude across a lithologic unit, indicating a high degree of heterogeneity in volcanic and carbonate-rock units. The higher water transmitting potential of carbonate-rock units relative to volcanic-rock units is exemplified by the large difference in their estimated maximum hydraulic conductivity; 4,000 and 400 feet per day, respectively. Simulated minimum estimates of hydraulic conductivity are inexact and represent the lower detection limit of the method. Minimum thicknesses of lithologic intervals also were defined for comparing AnalyzeHOLE results to hydraulic properties in regional ground-water flow models.

  8. Image credit: Dreamstime Technology for

    E-Print Network [OSTI]

    through development of superconducting magnet technology. Without that research today's high- resolutionImage credit: Dreamstime Technology for research saves lives Technology developed to advance STFC in particle physics technology not only supported important experiments at CERN but pioneered early

  9. Quantum ghost imaging through turbulence

    E-Print Network [OSTI]

    Dixon, P. Ben

    We investigate the effect of turbulence on quantum ghost imaging. We use entangled photons and demonstrate that for a specific experimental configuration the effect of turbulence can be greatly diminished. By decoupling ...

  10. Lensless Imaging of Magnetic Nanostructures

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

    28 March 2012 00:00 Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying...

  11. Motion Estimation from Disparity Images

    E-Print Network [OSTI]

    Demirdjian, D.

    2001-05-07

    A new method for 3D rigid motion estimation from stereo is proposed in this paper. The appealing feature of this method is that it directly uses the disparity images obtained from stereo matching. We assume that the stereo ...

  12. Methods for functional brain imaging

    E-Print Network [OSTI]

    Witzel, Thomas, Ph. D. Massachusetts Institute of Technology

    2011-01-01

    Magnetic resonance imaging (MRI) has demonstrated the potential for non-invasive mapping of structure and function (fMRI) in the human brain. In this thesis, we propose a series of methodological developments towards ...

  13. High speed imaging television system

    DOE Patents [OSTI]

    Wilkinson, William O. (Silver Spring, MD); Rabenhorst, David W. (Silver Spring, MD)

    1984-01-01

    A television system for observing an event which provides a composite video output comprising the serially interlaced images the system is greater than the time resolution of any of the individual cameras.

  14. Imaging Liquids Using Microfluidic Cells

    SciTech Connect (OSTI)

    Yu, Xiao-Ying; Liu, Bingwen; Yang, Li

    2013-05-10

    Chemistry occurring in the liquid and liquid surface is important in many applications. Chemical imaging of liquids using vacuum based analytical techniques is challenging due to the difficulty in working with liquids with high volatility. Recent development in microfluidics enabled and increased our capabilities to study liquid in situ using surface sensitive techniques such as electron microscopy and spectroscopy. Due to its small size, low cost, and flexibility in design, liquid cells based on microfluidics have been increasingly used in studying and imaging complex phenomena involving liquids. This paper presents a review of microfluidic cells that were developed to adapt to electron microscopes and various spectrometers for in situ chemical analysis and imaging of liquids. The following topics will be covered including cell designs, fabrication techniques, unique technical features for vacuum compatible cells, and imaging with electron microscopy and spectroscopy. Challenges are summarized and recommendations for future development priority are proposed.

  15. Imaging atoms in 3-D

    ScienceCinema (OSTI)

    Ercius, Peter

    2014-06-27

    Berkeley Lab's Peter Ercius discusses "Imaging atoms in 3-D" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas

  16. Imaging atoms in 3-D

    SciTech Connect (OSTI)

    Ercius, Peter

    2013-10-31

    Berkeley Lab's Peter Ercius discusses "Imaging atoms in 3-D" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas

  17. Thomas Jefferson: image and ideology 

    E-Print Network [OSTI]

    Wilson, Gaye N. S. B.

    2012-11-30

    This thesis explores the public image of Thomas Jefferson as recorded in his major life portraits. It consults the traditions that surrounded eighteenth-century portraiture and the history of the portrait as a means of ...

  18. Computational time-resolved imaging

    E-Print Network [OSTI]

    Kirmani, Ghulam A. (Ghulam Ahmed)

    2015-01-01

    Classical photography uses steady-state illumination and light sensing with focusing optics to capture scene reflectivity as images; temporal variations of the light field are not exploited. This thesis explores the use ...

  19. Radiopharmaceuticals for imaging the heart

    DOE Patents [OSTI]

    Green, M.A.; Tsang, B.W.

    1994-06-28

    Radiopharmaceuticals for imaging myocardial tissues are prepared by forming lipophilic, cationic complexes of radioactive metal ions with metal chelating ligands comprising the Schiff base adducts of triamines and tetraamines with optionally substituted salicylaldehydes. The lipophilic, cationic, radioactive complexes of the invention exhibit high uptake and retention in myocardial tissues. Preferred gallium-68(III) complexes in accordance with this invention can be used to image the heart using positron emission tomography. 6 figures.

  20. Radiopharmaceuticals for imaging the heart

    DOE Patents [OSTI]

    Green, Mark A. (West Lafayette, IN); Tsang, Brenda W. (Lafayette, IN)

    1994-01-01

    Radiopharmaceuticals for imaging myocardial tissues are prepared by forming lipophilic, cationic complexes of radioactive metal ions with metal chelating ligands comprising the Schiff base adducts of triamines and tetraamines with optionally substituted salicylaldehydes. The lipophilic, cationic, radioactive complexes of the invention exhibit high uptake and retention in myocardial tissues. Preferred gallium-68(III) complexes in accordance with this invention can be used to image the heart using positron emission tomography.

  1. Range determination for scannerless imaging

    DOE Patents [OSTI]

    Muguira, Maritza Rosa (Albuquerque, NM); Sackos, John Theodore (Albuquerque, NM); Bradley, Bart Davis (Albuquerque, NM); Nellums, Robert (Albuquerque, NM)

    2000-01-01

    A new method of operating a scannerless range imaging system (e.g., a scannerless laser radar) has been developed. This method is designed to compensate for nonlinear effects which appear in many real-world components. The system operates by determining the phase shift of the laser modulation, which is a physical quantity related physically to the path length between the laser source and the detector, for each pixel of an image.

  2. Last updated on January 12, 2014 at 14:07 EST Log In and Sign Up with: SearchHome Video News Images Health Education Topics Blogs On Science

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    Health Education Topics Blogs On Science Space Science Technology Health General Sci-Fi & Gaming Oddities International Business Education Mars Science Laboratory Curiosity Home » News » Technology » Micro-Turbine Technology Could Use Wind Power To Charge Mobile Devices Micro-Turbine Technology Could Use Wind Power

  3. AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for the United States Forest Service: Caribou-Targhee National Forest

    SciTech Connect (OSTI)

    Stephen Schey; Jim Francfort; Ian Nienhueser

    2014-06-01

    Battelle Energy Alliance, LLC, managing and operating contractor for the U.S. Department of Energy’s Idaho National Laboratory, is the lead laboratory for U.S. Department of Energy Advanced Vehicle Testing. Battelle Energy Alliance, LLC contracted with Intertek Testing Services, North America (ITSNA) to collect and evaluate data on federal fleet operations as part of the Advanced Vehicle Testing Activity’s Federal Fleet Vehicle Data Logging and Characterization study. The Advanced Vehicle Testing Activity study seeks to collect and evaluate data to validate the utilization of advanced electric drive vehicle transportation. This report focuses on the Caribou-Targhee National Forest (CTNF) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies’ fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles, or PEVs) can fulfill the mission requirements. ITSNA acknowledges the support of Idaho National Laboratory and CTNF for participation in the study. ITSNA is pleased to provide this report and is encouraged by enthusiasm and support from the Forest Service and CTNF personnel.

  4. IMPROVED V II log(gf) VALUES, HYPERFINE STRUCTURE CONSTANTS, AND ABUNDANCE DETERMINATIONS IN THE PHOTOSPHERES OF THE SUN AND METAL-POOR STAR HD 84937

    SciTech Connect (OSTI)

    Wood, M. P.; Lawler, J. E.; Den Hartog, E. A.; Sneden, C.; Cowan, J. J. E-mail: jelawler@wisc.edu E-mail: chris@verdi.as.utexas.edu

    2014-10-01

    New experimental absolute atomic transition probabilities are reported for 203 lines of V II. Branching fractions are measured from spectra recorded using a Fourier transform spectrometer and an echelle spectrometer. The branching fractions are normalized with radiative lifetime measurements to determine the new transition probabilities. Generally good agreement is found between this work and previously reported V II transition probabilities. Two spectrometers, independent radiometric calibration methods, and independent data analysis routines enable a reduction in systematic uncertainties, in particular those due to optical depth errors. In addition, new hyperfine structure constants are measured for selected levels by least squares fitting line profiles in the FTS spectra. The new V II data are applied to high resolution visible and UV spectra of the Sun and metal-poor star HD 84937 to determine new, more accurate V abundances. Lines covering a range of wavelength and excitation potential are used to search for non-LTE effects. Very good agreement is found between our new solar photospheric V abundance, log ?(V) = 3.95 from 15 V II lines, and the solar-system meteoritic value. In HD 84937, we derive [V/H] = –2.08 from 68 lines, leading to a value of [V/Fe] = 0.24.

  5. Noise Reduction in CMOS Image Sensors for High Quality Imaging: The Autocorrelation Function Filter on Burst Image Sequences

    E-Print Network [OSTI]

    Nielsen, Frank

    Noise Reduction in CMOS Image Sensors for High Quality Imaging: The Autocorrelation Function Filter-hiro@waseda.jp Abstract We propose a new method for image noise detection and reduction in complementary metal oxide semi- conductor (CMOS) image sensors inspired from audio noise cancelling techniques. Our algorithm is based

  6. High speed imager test station

    DOE Patents [OSTI]

    Yates, G.J.; Albright, K.L.; Turko, B.T.

    1995-11-14

    A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

  7. High speed imager test station

    DOE Patents [OSTI]

    Yates, George J. (Santa Fe, NM); Albright, Kevin L. (Los Alamos, NM); Turko, Bojan T. (Moraga, CA)

    1995-01-01

    A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment.

  8. THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING ...

    E-Print Network [OSTI]

    2011-02-21

    THERMOACOUSTIC TOMOGRAPHY ARISING IN BRAIN IMAGING. PLAMEN STEFANOV AND GUNTHER UHLMANN. ABSTRACT. We study the mathematical ...

  9. Image Based Gisting in CLIR Mark Sanderson

    E-Print Network [OSTI]

    Sanderson, Mark

    from the Rosch [1] paper. These search terms were entered into the Google Image search engine in order the ability of subjects to derive the search term that might have been used to return a set of images from on subjects' abilities in this respect. Search terms were defined and images found using an online image

  10. Pressure and fluid saturation prediction in a multicomponent reservoir, using combined seismic and electromagnetic imaging

    SciTech Connect (OSTI)

    Hoversten, G.M.; Gritto, Roland; Washbourne, John; Daley, Tom

    2002-06-10

    This paper presents a method for combining seismic and electromagnetic measurements to predict changes in water saturation, pressure, and CO{sub 2} gas/oil ratio in a reservoir undergoing CO{sub 2} flood. Crosswell seismic and electromagnetic data sets taken before and during CO{sub 2} flooding of an oil reservoir are inverted to produce crosswell images of the change in compressional velocity, shear velocity, and electrical conductivity during a CO{sub 2} injection pilot study. A rock properties model is developed using measured log porosity, fluid saturations, pressure, temperature, bulk density, sonic velocity, and electrical conductivity. The parameters of the rock properties model are found by an L1-norm simplex minimization of predicted and observed differences in compressional velocity and density. A separate minimization, using Archie's law, provides parameters for modeling the relations between water saturation, porosity, and the electrical conductivity. The rock-properties model is used to generate relationships between changes in geophysical parameters and changes in reservoir parameters. Electrical conductivity changes are directly mapped to changes in water saturation; estimated changes in water saturation are used along with the observed changes in shear wave velocity to predict changes in reservoir pressure. The estimation of the spatial extent and amount of CO{sub 2} relies on first removing the effects of the water saturation and pressure changes from the observed compressional velocity changes, producing a residual compressional velocity change. This velocity change is then interpreted in terms of increases in the CO{sub 2}/oil ratio. Resulting images of the CO{sub 2}/oil ratio show CO{sub 2}-rich zones that are well correlated to the location of injection perforations, with the size of these zones also correlating to the amount of injected CO{sub 2}. The images produced by this process are better correlated to the location and amount of injected CO{sub 2} than are any of the individual images of change in geophysical parameters.

  11. Grid Logging: Best Practices Guide

    E-Print Network [OSTI]

    Tierney, Brian L

    2008-01-01

    file” file=/etc/grid-security/certificates/4a6cd8b1.0 guid=reading” file=/etc/grid-security/grid-mapfile guid=F7D64975-

  12. New Enterprise Log Issue 10 

    E-Print Network [OSTI]

    Multiple Contributors

    1985-01-01

    ~ard fought and successfully won game of chess under his belt. Spockglanced up as Kirk crossed to the command seat. "Good morning, Captain." The Vulcan sounded slightly miffed. ,His Captain had produced - the evening before - some of the most wildly...

  13. Gamma Log | 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:QAsource History View New PagesSustainable UrbanKentucky: Energy Resources Jump to: navigation,Flint1987) |

  14. Density Log | 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 SECTIONRobertsdale, Alabama (UtilityInstruments IncMississippi:DeltaFish Lake Valley Area (DOE GTP)

  15. Request Log Closedl Date Yes

    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 wouldMassR&D100 Winners *ReindustrializationEnergyWind EnergyReportsEnergy6 FOIA -

  16. Acoustic Logs | 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 JEnvironmental Jump to:EAand DaltonSolar Energy LLC Jump to: navigation,Energy Solutions

  17. Log in | The Ames Laboratory

    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 WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat PumpsTechnologies |LibraryCenterCenterLinksFacts,

  18. Caliper Log | 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 ECoopButte County, California:InformationInformation 9thCalipatria,

  19. Neutron Log | 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 APPENDIXsourceII Jump to: navigation,National MarineUSAID Climate ActivitiesSilver Peak Area

  20. Log in | The Ames Laboratory

    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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC)Lodging Lodging Meeting Hotel - HyattError

  1. Interpretation of HRTEM images by image simulation: An introduction to theory and practice

    SciTech Connect (OSTI)

    O`Keefe, M.A.

    1994-08-01

    This tutorial describes the use of image simulation as an aid to interpretation of high-resolution transmission electron microscope images. Topics include some image processing as well as image simulation. Image processing is the manipulation of experimental images in order to extract some desired information. Image simulation is the generation of a computed or simulated image from a model structure. It requires a detailed knowledge of the process of image formation in the high-resolution transmission electron microscope. This tutorial concentrates on image simulation, with examples of image processing appearing only as required as illustrations. Because this is an introduction, the theory of image simulation is described, but not explored in depth. The practice of image simulation is covered in sufficient detail to enable the student to understand the functions of the various steps in the computations, and the parameters necessary for their evaluation.

  2. Method for removing RFI from SAR images

    DOE Patents [OSTI]

    Doerry, Armin W.

    2003-08-19

    A method of removing RFI from a SAR by comparing two SAR images on a pixel by pixel basis and selecting the pixel with the lower magnitude to form a composite image. One SAR image is the conventional image produced by the SAR. The other image is created from phase-history data which has been filtered to have the frequency bands containing the RFI removed.

  3. A Model of Image Representation and Indexing in Image Database Systems \\Lambda

    E-Print Network [OSTI]

    Krovi, Venkat

    A Model of Image Representation and Indexing in Image Database Systems \\Lambda G. Sheikholeslami Buffalo, NY 14260 Abstract Image database systems need to be built to support effective and efficient­oriented image decomposition structures to be used as a fundamental data model for representing image content

  4. Interpretation of electron holographic phase images and defocused bright-field images of nanocarbon field emitters

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    a corresponding out-of-focus image recorded from a similar wire [2]. These images cannot be interpreted usingInterpretation of electron holographic phase images and defocused bright-field images of nanocarbon field, image simulation Electron holography is well suited to the investigation of electric and magnetic

  5. STAR Images: Image gallery from the Solenoidal Tracker at RHIC

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

    The primary physics task of STAR is to study the formation and characteristics of the quark-gluon plasma (QGP), a state of matter believed to exist at sufficiently high energy densities. STAR consists of several types of detectors, each specializing in detecting certain types of particles or characterizing their motion. These detectors allow final statements to be made about the collision. The gallery of STAR images makes available a small collection of event-generated images from Gold-Beam experiments, a simulation of TCP Drift, and a library of STAR instrument and construction photos.

  6. Compressional wave character in gassy, near-surface sediments in southern Louisiana determined from variable frequency cross-well, borehole logging, and surface seismic measurements

    SciTech Connect (OSTI)

    Thompson, M.D.; McGinnis, L.D.; Wilkey, P.L. [Argonne National Lab., IL (United States); Fasnacht, T. [Gas Research Inst., Chicago, IL (United States)

    1995-06-01

    Velocity and attenuation data were used to test theoretical equations describing the frequency dependence of compressional wave velocity and attenuation through gas-rich sediments in coastal Louisiana. The cross-well data were augmented with velocities derived from a nearby seismic refraction station using a low-frequency source. Energy at 1 and 3 kHz was successfully transmitted over distances from 3.69 to 30 m; the 5 and 7-kHz data were obtained only at distances up to 20 m. Velocity tomograms were constructed for one borehole pair and covered a depth interval of 10--50 m. Results from the tomographic modeling indicate that gas-induced low velocities are present to depths of greater than 40 m. Analysis of the velocity dispersion suggests that gas-bubble resonance must be greater than 7 kHz, which is above the range of frequencies used in the experiment. Washout of the boreholes at depths above 15 m resulted in a degassed zone containing velocities higher than those indicated in both nearby refraction and reflection surveys. Velocity and attenuation information were obtained for a low-velocity zone centered at a depth of approximately 18 m. Measured attenuations of 1.57, 2.95, and 3.24 dB/m for the 3-, 5-, and 7-kHz signals, respectively, were modeled along with the velocity data using a silt-clay sediment type. Density and porosity data for the model were obtained from the geophysical logs; the bulk and shear moduli were estimated from published relationships. Modeling results indicate that gas bubbles measuring 1 mm in diameter occupy at least 25% to 35% of the pore space.

  7. Extreme luminosity imaging conical spectrograph

    SciTech Connect (OSTI)

    Pikuz, S. A.; Shelkovenko, T. A.; Mitchell, M. D.; Chandler, K. M.; Douglass, J. D.; McBride, R. D.; Jackson, D. P.; Hammer, D. A.

    2006-10-15

    A new configuration for a two-dimensional (2D) imaging x-ray spectrograph based on a conically bent crystal is introduced: extreme luminosity imaging conical spectrograph (ELICS). The ELICS configuration has important advantages over spectrographs that are based on cylindrically and spherically bent crystals. The main advantages are that a wide variety of large-aperture crystals can be used, and any desired magnification in the spatial direction (the direction orthogonal to spectral dispersion) can be achieved by the use of different experimental arrangements. The ELICS can be set up so that the detector plane is almost perpendicular to the incident rays, a good configuration for time-resolved spectroscopy. ELICSs with mica crystals of 45x90 mm{sup 2} aperture have been successfully used for imaging on the XP and COBRA pulsed power generators, yielding spectra with spatial resolution in 2D of Z pinches and X pinches.

  8. Miniature hybrid optical imaging lens

    DOE Patents [OSTI]

    Sitter, D.N. Jr.; Simpson, M.L.

    1997-10-21

    A miniature lens system that corrects for imaging and chromatic aberrations is disclosed, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components. 2 figs.

  9. Miniature hybrid optical imaging lens

    DOE Patents [OSTI]

    Sitter, Jr., David N. (Knoxville, TN); Simpson, Marc L. (Knoxville, TN)

    1997-01-01

    A miniature lens system that corrects for imaging and chromatic aberrations, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components.

  10. Electronic imaging system and technique

    DOE Patents [OSTI]

    Bolstad, J.O.

    1984-06-12

    A method and system for viewing objects obscurred by intense plasmas or flames (such as a welding arc) includes a pulsed light source to illuminate the object, the peak brightness of the light reflected from the object being greater than the brightness of the intense plasma or flame; an electronic image sensor for detecting a pulsed image of the illuminated object, the sensor being operated as a high-speed shutter; and electronic means for synchronizing the shutter operation with the pulsed light source.

  11. Electronic imaging system and technique

    DOE Patents [OSTI]

    Bolstad, Jon O. (Idaho Falls, ID)

    1987-01-01

    A method and system for viewing objects obscurred by intense plasmas or flames (such as a welding arc) includes a pulsed light source to illuminate the object, the peak brightness of the light reflected from the object being greater than the brightness of the intense plasma or flame; an electronic image sensor for detecting a pulsed image of the illuminated object, the sensor being operated as a high-speed shutter; and electronic means for synchronizing the shutter operation with the pulsed light source.

  12. NEUTRON IMAGING, RADIOGRAPHY AND TOMOGRAPHY.

    SciTech Connect (OSTI)

    SMITH,G.C.

    2002-03-01

    Neutrons are an invaluable probe in a wide range of scientific, medical and commercial endeavors. Many of these applications require the recording of an image of the neutron signal, either in one-dimension or in two-dimensions. We summarize the reactions of neutrons with the most important elements that are used for their detection. A description is then given of the major techniques used in neutron imaging, with emphasis on the detection media and position readout principle. Important characteristics such as position resolution, linearity, counting rate capability and sensitivity to gamma-background are discussed. Finally, the application of a subset of these instruments in radiology and tomography is described.

  13. Multispectral imaging method and apparatus

    DOE Patents [OSTI]

    Sandison, D.R.; Platzbecker, M.R.; Vargo, T.D.; Lockhart, R.R.; Descour, M.R.; Richards-Kortum, R.

    1999-07-06

    A multispectral imaging method and apparatus are described which are adapted for use in determining material properties, especially properties characteristic of abnormal non-dermal cells. A target is illuminated with a narrow band light beam. The target expresses light in response to the excitation. The expressed light is collected and the target's response at specific response wavelengths to specific excitation wavelengths is measured. From the measured multispectral response the target's properties can be determined. A sealed, remote probe and robust components can be used for cervical imaging. 5 figs.

  14. Gamma-ray Imaging Methods

    SciTech Connect (OSTI)

    Vetter, K; Mihailescu, L; Nelson, K; Valentine, J; Wright, D

    2006-10-05

    In this document we discuss specific implementations for gamma-ray imaging instruments including the principle of operation and describe systems which have been built and demonstrated as well as systems currently under development. There are several fundamentally different technologies each with specific operational requirements and performance trade offs. We provide an overview of the different gamma-ray imaging techniques and briefly discuss challenges and limitations associated with each modality (in the appendix we give detailed descriptions of specific implementations for many of these technologies). In Section 3 we summarize the performance and operational aspects in tabular form as an aid for comparing technologies and mapping technologies to potential applications.

  15. X-ray Imaging Workshop

    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 AdministrationRobust,Field-effectWorkingLos Alamos verifies largest single goldWindX-Ray ImagingInImaging and

  16. Image change detection systems, methods, and articles of manufacture

    DOE Patents [OSTI]

    Jones, James L. (Idaho Falls, ID); Lassahn, Gordon D. (Idaho Falls, ID); Lancaster, Gregory D. (Idaho Falls, ID)

    2010-01-05

    Aspects of the invention relate to image change detection systems, methods, and articles of manufacture. According to one aspect, a method of identifying differences between a plurality of images is described. The method includes loading a source image and a target image into memory of a computer, constructing source and target edge images from the source and target images to enable processing of multiband images, displaying the source and target images on a display device of the computer, aligning the source and target edge images, switching displaying of the source image and the target image on the display device, to enable identification of differences between the source image and the target image.

  17. ACTIVE REGION MOSS: DOPPLER SHIFTS FROM HINODE/EXTREME-ULTRAVIOLET IMAGING SPECTROMETER OBSERVATIONS

    SciTech Connect (OSTI)

    Tripathi, Durgesh [Inter-University Centre for Astronomy and Astrophysics, Pune University Campus, Pune 411007 (India); Mason, Helen E. [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom); Klimchuk, James A. [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

    2012-07-01

    Studying the Doppler shifts and the temperature dependence of Doppler shifts in moss regions can help us understand the heating processes in the core of the active regions. In this paper, we have used an active region observation recorded by the Extreme-ultraviolet Imaging Spectrometer (EIS) on board Hinode on 2007 December 12 to measure the Doppler shifts in the moss regions. We have distinguished the moss regions from the rest of the active region by defining a low-density cutoff as derived by Tripathi et al. in 2010. We have carried out a very careful analysis of the EIS wavelength calibration based on the method described by Young et al. in 2012. For spectral lines having maximum sensitivity between log T = 5.85 and log T = 6.25 K, we find that the velocity distribution peaks at around 0 km s{sup -1} with an estimated error of 4-5 km s{sup -1}. The width of the distribution decreases with temperature. The mean of the distribution shows a blueshift which increases with increasing temperature and the distribution also shows asymmetries toward blueshift. Comparing these results with observables predicted from different coronal heating models, we find that these results are consistent with both steady and impulsive heating scenarios. However, the fact that there are a significant number of pixels showing velocity amplitudes that exceed the uncertainty of 5 km s{sup -1} is suggestive of impulsive heating. Clearly, further observational constraints are needed to distinguish between these two heating scenarios.

  18. Multi-channel medical imaging system

    DOE Patents [OSTI]

    Frangioni, John V

    2013-12-31

    A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remain in the subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may provide an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide used to capture images. The system may be configured for use in open surgical procedures by providing an operating area that is closed to ambient light. The systems described herein provide two or more diagnostic imaging channels for capture of multiple, concurrent diagnostic images and may be used where a visible light image may be usefully supplemented by two or more images that are independently marked for functional interest.

  19. Buried object detection in GPR images

    DOE Patents [OSTI]

    Paglieroni, David W; Chambers, David H; Bond, Steven W; Beer, W. Reginald

    2014-04-29

    A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.

  20. Upright cone beam CT imaging using the onboard imager

    SciTech Connect (OSTI)

    Fave, Xenia Martin, Rachael; Yang, Jinzhong; Balter, Peter; Court, Laurence; Carvalho, Luis; Pan, Tinsu

    2014-06-15

    Purpose: Many patients could benefit from being treated in an upright position. The objectives of this study were to determine whether cone beam computed tomography (CBCT) could be used to acquire upright images for treatment planning and to demonstrate whether reconstruction of upright images maintained accurate geometry and Hounsfield units (HUs). Methods: A TrueBeam linac was programmed in developer mode to take upright CBCT images. The gantry head was positioned at 0°, and the couch was rotated to 270°. The x-ray source and detector arms were extended to their lateral positions. The x-ray source and gantry remained stationary as fluoroscopic projections were taken and the couch was rotated from 270° to 90°. The x-ray tube current was normalized to deposit the same dose (measured using a calibrated Farmer ion chamber) as that received during a clinical helical CT scan to the center of a cylindrical, polyethylene phantom. To extend the field of view, two couch rotation scans were taken with the detector offset 15 cm superiorly and then 15 cm inferiorly. The images from these two scans were stitched together before reconstruction. Upright reconstructions were compared to reconstructions from simulation CT scans of the same phantoms. Two methods were investigated for correcting the HUs, including direct calibration and mapping the values from a simulation CT. Results: Overall geometry, spatial linearity, and high contrast resolution were maintained in upright reconstructions. Some artifacts were created and HU accuracy was compromised; however, these limitations could be removed by mapping the HUs from a simulation CT to the upright reconstruction for treatment planning. Conclusions: The feasibility of using the TrueBeam linac to take upright CBCT images was demonstrated. This technique is straightforward to implement and could be of enormous benefit to patients with thoracic tumors or those who find a supine position difficult to endure.