National Library of Energy BETA

Sample records for unknown notes geochemical

  1. Notes

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

    Notes Notes Accomodations at Argonne The Argonne contact person for the NUG Meeting is Mike Minkoff of the Mathematics and Computer Science Division. His phone number is (630) 252-7234. Last edited: 2011-04-01 11:41

  2. Notes

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

    Notes Notes ERSUG Meeting Summary Notes, November 15, 1999 Here are some highlights from the discussions (excepting the items contributed by ERSUG Chair, Bas Bramms below): During the state of NERSC presentation by Jim Craw a primary topic of discussion was the issue of the processing capabilities of the PVP cluster. Since the upgrade of the batch system processors to SV1s, some concern has been expressed about the relatively poorer processing capabilities of the J90SE processors on the

  3. Notes

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

    Notes Notes Why the June 1995 ERSUG Meeting is Important Bill McCurdy describes below a competitive process through which a decision will be made by MICS Division (formerly the OSC) in the June, 1995 timeframe to: (1) possibly move NERSC to Lawrence Berkeley National Laboratory, and (2) redefine to some extent the mission of the Center. All of this would be effected within a significantly reduced cost envelope. The LLNL proposal to keep NERSC where it is and the LBL proposal may soon be

  4. Notes

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

    Notes Notes Live Media Streaming via RealPlayer Media streaming of these lectures will be provided via RealPlayer. Users of Windows- or Macintosh-based computers will be able to see and hear the presentation by way of the following procedures. 1. Download and open the slide files onto your computer. 2. Make certain you have the current version of RealPlayer installed. These are available at the Real Free Player Download web site 3. Start the RealPlayer application, and then enter the following

  5. HBH-GEOCHEM-GEOPHY

    Energy Science and Technology Software Center (OSTI)

    003015WKSTN00 Hiereachical Bayesian Model for Combining Geochemical and Geophysical Data for Environmental Applications Software

  6. OTS NOTE

    Office of Legacy Management (LM)

    c3 Alexander Williams FROM: Ed Mitchellcm SUBJECT: Babcock and Wilcox Elimination Recommendation The purpose of this note is to provide you with certain inf regarding the ...

  7. OTS NOTE

    Office of Legacy Management (LM)

    941 OTS NOTE DATE: July 2, 1990 TO: W. Alexander Williams FROM : Don Mackenzie d%? SUBJECT: Elimination of 3 Facilities from NSRAP . + 9 Enclosed are elimination recommendations...

  8. Blue Note

    ScienceCinema (OSTI)

    Murray Gibson

    2010-01-08

    Argonne's Murray Gibson is a physicist whose life's work includes finding patterns among atoms. The love of distinguishing patterns also drives Gibson as a musician and Blues enthusiast."Blue" notes are very harmonic notes that are missing from the equal temperament scale.The techniques of piano blues and jazz represent the melding of African and Western music into something totally new and exciting.

  9. Blue Note

    SciTech Connect (OSTI)

    Murray Gibson

    2007-04-27

    Argonne's Murray Gibson is a physicist whose life's work includes finding patterns among atoms. The love of distinguishing patterns also drives Gibson as a musician and Blues enthusiast."Blue" notes are very harmonic notes that are missing from the equal temperament scale.The techniques of piano blues and jazz represent the melding of African and Western music into something totally new and exciting.

  10. UNKNOWN

    Office of Legacy Management (LM)

    ... Deep .Spa Research I1 49:6051-6067. Burger, J. 2002. Incorporating ecology and ecological risk into long-term stewardship o n contaminated lands. Remr- diation 13:107-119. Burger, ...

  11. Unknown

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

    joints as shown in Figure 2, a schematic of the blade shape geometry. Because of the multi-sectioned, step- tapered characteristics of the Test Bed blades, the normally-used...

  12. Unknown

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

    Mechanical El Stanford University Stanford, CA 94305 K. Bergey University of Oklahoma Aero Engineering Department Norman, OK 73069 Ir. Jos Beurskens Programme Manager for...

  13. Unknown

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

    Distribution Category UC-1290 SAND87-3146 Unlimited Release Reprinted June 1997 The Interconnection Issues of Utility-lntertied Photovoltaic Systems John Stevens Photovoltaic Systems Research Division Sandia National Laboratories Albuquerque, NM 87185 Abstract For photovoltaics to realize its potential as a significant contributor to U.S. energy requirements, photovoltaic systems must be capable of benign interconnections with existing electric utility systems. Technical questions have to be

  14. Unknown

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

    * Sandia National laboratories U.S. DE P.\k TMENT OF ENERGY COVER: Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation. Please direct comments to Lisa Shepperd, Florida Solar Energy Center, 300 State Road 401, Cape Canaveral, FL 32920; or Elizabeth R]chards, Department 6218, Sandia National Laboratories, Albuquerque, NM 87185-5800. . * Notice: This report was prepared as an account of work sponsored by an agency of the United States

  15. UNKNOWN

    Office of Legacy Management (LM)

    ... pipe to the atmosphere (Douthett, 1972; Littlejohn, 1972; Miller, 1972; Smith, 1972). ... remain so for 100-200 years (Bryant, 1992; Nimz & Thompson. 1992; Smith & Bradley, 1995). ...

  16. UNKNOWN

    Office of Legacy Management (LM)

    ... other radionuclides reside outside the glass and are potentially mobile (Smith, 1995). ... Lett. 11 :295-298. Kersting, A. B., Efurd, D. W., Finnegan, D. L., Rokop, D. J., Smith, D. ...

  17. Unknown

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

    Laboratories Albuquerque, NM 87185 ABSTRACT The LIFE2 computer code is a fatiguefracture analysis code that is specialized to the analysis of wind turbine components. The...

  18. Unknown

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

    ... 7 9 9 9 11 11 12 15 15 18 21 22 23 23 23 23 CONTENTS ... Comparing Costs of a Diesel System Comparative Costs of ... Power Nomograph 17 100 mWcm2 insolation with the ...

  19. Unknown

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

    we study a D-spar composite structure, which is part of the airfoil shape. The basic dimension of the D-spar is 6' (long), 6" (wide) and 3" (height) as shown in Figure 2...

  20. Unknown

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

    MATERIAL* J. A. Van Den Avyle, Mechanical Metallurgy Division H. J. Sutherland, Wind Energy Research Division Sandia National Laboratories Albuquerque, New Mexico ABSTRACT The...

  1. Aging and the geochemical environment

    SciTech Connect (OSTI)

    Not Available

    1981-01-01

    This report describes and assesses the aging process and related environmental aspects that may provide useful insights toward postponing some of the inevitable effects of aging. Although the Panel on Aging and the Geochemical Environment is convinced that the geochemical environment is associated with aging, it of course recognizes that other factors may also be significant or, perhaps, more important. Accordingly, the report is intended to enhance the awareness of biomedical and geochemical research scientists, decision makers in related areas, and the lay public interested in an understanding of the relation of the geochemical environment to senescence.

  2. Geochemical Speciation Mass Transfer

    Energy Science and Technology Software Center (OSTI)

    1985-12-01

    PHREEQC is designed to model geochemical reactions. Based on an ion association aqueous model, PHREEQC can calculate pH, redox potential, and mass transfer as a function of reaction progress. It can be used to describe geochemical processes for both far-field and near-field performance assessment and to evaluate data acquisition needs and test data. It can also calculate the composition of solutions in equilibrium with multiple phases. The data base, including elements, aqueous species, and mineralmore » phases, is independent of the program and is completely user-definable. PHREEQC requires thermodynamic data for each solid, gaseous, or dissolved chemical species being modeled. The two data bases, PREPHR and DEQPAK7, supplied with PHREEQC are for testing purposes only and should not be applied to real problems without first being carefully examined. The conceptual model embodied in PHREEQC is the ion-association model of Pearson and Noronha. In this model a set of mass action equations are established for each ion pair (and controlling solid phases when making mass transfer calculations) along with a set of mass balance equations for each element considered. These sets of equations are coupled using activity coefficient values for each aqueous species and solved using a continued fraction approach for the mass balances combined with a modified Newton-Raphson technique for all other equations. The activity coefficient expressions in PHREEQC include the extended Debye-Huckel, WATEQ Debye-Huckel, and Davies equations from the original United States Geological Survey version of the program. The auxiliary preprocessor program PHTL, which is derived from EQTL, converts EQ3/6 thermodynamic data to PHREEQC format so that the two programs can be compared. PHREEQC can be used to determine solubility limits on the radionuclides present in the waste form. These solubility constraints may be input to the WAPPA leach model.« less

  3. Novel Coupled Thermochronometric and Geochemical Investigation...

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

    Novel Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault-Controlled Dilational Corners Novel Coupled Thermochronometric and Geochemical ...

  4. Category:Geochemical Techniques | Open Energy Information

    Open Energy Info (EERE)

    Techniques Technique Subcategories This category has only the following subcategory. G + Geochemical Data Analysis (2 categories) 4 pages Pages in category "Geochemical...

  5. Aging and the geochemical environment

    SciTech Connect (OSTI)

    Not Available

    1981-01-01

    The report describes and assesses the aging process and related environmental aspects. Specific geographic areas of increased and decreased longevity were identified and geochemically characterized in terms of surface rocks, drinking water quality, soils, and abnormal absorption of trace elements by plants. Environmental factors that may be related to increased longevity are discussed. 11 references, 32 figures, 8 tables. (ACR)

  6. Notes for Visualization Requirememnts

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

    Notes for Vis Requirements Notes for Visualization Requirememnts Notes from June 5, 2002, Visualization Requirements for DOE-Sponsored Computational Science and Engineering Applications A DOE Workshop to Be Held 
at Lawrence Berkeley National Laboratory,
Berkeley, California, June 5, 2002 Workshop Co-organizers: Bernd Hamann 
University of California-Davis Lawrence Berkeley National Lab. E. Wes Bethel 
Lawrence Berkeley National Lab. Horst D. Simon
Lawrence Berkeley National Lab.

  7. Meeting Summary Notes

    Office of Environmental Management (EM)

    records check list: Information that should be requested by SOMD of receiving facility Medical records: Problem list: list of all past and current medical diagnosis and surgical procedures. Medication list Physical exam notes Lab and diagnostic testing results Pertinent HRP notes. (temporary removals, medical and psychological issues) Psychiatric records: A summary or actual note of the psychiatric or psychological evaluation

    Medical Records Checklist - September 14, 2010 Medical Records

  8. Calculation note review

    SciTech Connect (OSTI)

    Ramble, A.L.

    1996-09-30

    This document contains a review of the calculation notes which were prepared for the Tank Waste Remediation System Basis for Interim Operation.

  9. Notes and Action Items

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

    Notes and Action Items Notes and Action Items Report on the NUGEX business meeting of June 6, 2000, in Oak Ridge Minute notes by Bas Braams First of all, many thanks to the organizers of the preceding NUG meeting: Roberta Boucher, David Dean, Brian Hingerty, Bill Kramer, Donald Spong and Malcolm Stocks. Likewise thanks to Brian Hingerty and Mike Minkoff for organizing the Users Helping Users events, and to Tom DeBoni, Osni Marques, Jeffrey Squyres and David Turner for the NERSC training classes.

  10. Notes for Greenbook Process

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

    Notes Notes for Greenbook Process W. Kramer's Flip Charts - Input from the attendees on the Greenbook NUG Meeting February 22-23, 2001 The following are notes transcribed from the flip charts Bill filled in with attendee comments. Topic: The Last Greenbook CONS * 1 Person wrote it * Difficult to extract requirements * Needed to be "more even" tech edited * Latex is not immediately compatible with web-based text * Too complex for non-involved * Target audience not clear PROS * Person

  11. Interface Induced Carbonate Mineralization: A Fundamental Geochemical

    Office of Scientific and Technical Information (OSTI)

    Interface Induced Carbonate Mineralization: A Fundamental Geochemical Process Relevant to Carbon Sequestration Teng, H. Henry PI, The George Washington University PI, The George...

  12. Novel Coupled Thermochronometric and Geochemical Investigation...

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

    ... in a well-characterized structural context (permeability and alteration) in order to ... and geochemical data integration and model Innovative approach combining structural ...

  13. Optimizing parameters for predicting the geochemical behavior...

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

    of discrete fracture networks in geothermal systems Optimizing parameters for predicting the geochemical behavior and performance of discrete fracture networks in geothermal ...

  14. Geochemical Data Analysis | Open Energy Information

    Open Energy Info (EERE)

    Information Provided by Technique Lithology: StratigraphicStructural: Hydrological: Thermal: Dictionary.png Geochemical Data Analysis: No definition has been provided for...

  15. Meeting Notes and Presentations

    Office of Environmental Management (EM)

    Corporate Board Notes and Slides Notes from EM Corporate QA Board Tele-Conference - February 22, 2010 1 of 2 General: Attendance of voting board members was documented. All members were present or had a representative present on the call. Previous 5 Focus Areas: Dave Tuttel presented the proposed closeout of the previous 5 focus areas for the EM Corporate Board. * Focus Area 1 (Requirements Flow Down) - Board voted to close the focus area (unanimous) * Focus Area 2 (Adequate NQA-1 Suppliers) -

  16. Oil merger trend: exploring the unknowns

    SciTech Connect (OSTI)

    Solomon, B.

    1984-03-26

    Experts disagree on the effect recent oil company mergers will have on exploration spending and US credit markets. Proclaiming the answers unknowable, some see the issue as surpassing antitrust concerns. It is generally agreed, however, that there will be less spending on exploration and production during the transition period of the merger. The effect on stocks is also unknown, but analysts suggest that shareholder's adjustments will have only a minimal effect on the credit market.

  17. Hiereachical Bayesian Model for Combining Geochemical and Geophysical Data for Environmental Applications Software

    Energy Science and Technology Software Center (OSTI)

    2013-05-01

    Development of a hierarchical Bayesian model to estimate the spatiotemporal distribution of aqueous geochemical parameters associated with in-situ bioremediation using surface spectral induced polarization (SIP) data and borehole geochemical measurements collected during a bioremediation experiment at a uranium-contaminated site near Rifle, Colorado. The SIP data are first inverted for Cole-Cole parameters including chargeability, time constant, resistivity at the DC frequency and dependence factor, at each pixel of two-dimensional grids using a previously developed stochastic method.more » Correlations between the inverted Cole-Cole parameters and the wellbore-based groundwater chemistry measurements indicative of key metabolic processes within the aquifer (e.g. ferrous iron, sulfate, uranium) were established and used as a basis for petrophysical model development. The developed Bayesian model consists of three levels of statistical sub-models: 1) data model, providing links between geochemical and geophysical attributes, 2) process model, describing the spatial and temporal variability of geochemical properties in the subsurface system, and 3) parameter model, describing prior distributions of various parameters and initial conditions. The unknown parameters are estimated using Markov chain Monte Carlo methods. By combining the temporally distributed geochemical data with the spatially distributed geophysical data, we obtain the spatio-temporal distribution of ferrous iron, sulfate and sulfide, and their associated uncertainity information. The obtained results can be used to assess the efficacy of the bioremediation treatment over space and time and to constrain reactive transport models.« less

  18. Notes and Action Items

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

    Notes and Action Items Notes and Action Items ERSUG Action Items from June 1996 meeting at Germantown, MD Get DOE staff on mailers for broadcast of ERSUG issues Responsibility: Kendall and Kitchens Review and comment on ERSUG Proposal to SAC Responsibility: All of ERSUG Comments to Rick Kendall by July 17th email: ra_kendall@pnl.gov Fax : (509) 375-6631 Review and comment on Requirements Document "Greenbook" Responsibility: All of ERSUG Comments to Rick Kendall by August 7th email:

  19. Book Review - Geochemical Exploration 1982 | Open Energy Information

    Open Energy Info (EERE)

    Book Review - Geochemical Exploration 1982 Jump to: navigation, search OpenEI Reference LibraryAdd to library Book Review: Book Review - Geochemical Exploration 1982 Author R. A....

  20. Application Of Geochemical Methods In The Search For Geothermal...

    Open Energy Info (EERE)

    Geochemical Methods In The Search For Geothermal Fields Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Application Of Geochemical Methods In...

  1. Computer Modeling of Chemical and Geochemical Processes in High...

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

    Computer modeling of chemical and geochemical processes in high ionic strength solutions ... in brine Computer modeling of chemical and geochemical processes in high ionic ...

  2. VOL2NOTE.CHP:Corel VENTURA

    Gasoline and Diesel Fuel Update (EIA)

    B Explanatory Notes The following Explanatory Notes are provided to assist in understanding and interpreting the data presented in this publication. * Note 1. Petroleum Supply Reporting System * Note 2. Monthly Petroleum Supply Reporting System * Note 3. Technical Notes for Detailed Statistics Tables * Note 4. Domestic Crude Oil Production * Note 5. Export Data * Note 6. Quality Control and Data Revision * Note 7. Frames Maintenance * Note 8. Descriptive Monthly Statistics * Note 9. Practical

  3. Template:Note | Open Energy Information

    Open Energy Info (EERE)

    search Note Note: Usage Method 1 The following displays the note icon and the word 'Note:'. You can follow this with whatever textimagesmarkup you like, and it works...

  4. Geochemical Modeling Of Aqueous Systems

    Energy Science and Technology Software Center (OSTI)

    1995-09-07

    EQ3/6 is a software package for geochemical modeling of aqueous systems. This description pertains to version 7.2b. It addresses aqueous speciation, thermodynamic equilibrium, disequilibrium, and chemical kinetics. The major components of the package are EQ3NR, a speciation-solubility code, and EQ6 a reaction path code. EQ3NR is useful for analyzing groundwater chemistry data, calculating solubility limits, and determining whether certain reactions are in states of equilibrium or disequilibrium. It also initializes EQ6 calculations. EQ6 models themore » consequences of reacting an aqueous solution with a specified set of reactants (e.g., minerals or waste forms). It can also model fluid mixing and the effects of changes in temperature. Each of five supporting data files contain both standard state and activity coefficient-related data. Three support the use of the Davies or B-dot equations for the activity coefficients; the other two support the use of Pitzer''s equations. The temperature range of the thermodynamic data on the data files varies from 25 degrees C only to 0-300 degrees C.« less

  5. Notes and Definitions

    Weekly Natural Gas Storage Report (EIA)

    Notes and Definitions This report tracks U.S. natural gas inventories held in underground storage facilities. The weekly stocks generally are the volumes of working gas as of the report date. The "net change" in reported stock levels reflects all events affecting working gas in storage, including injections, withdrawals, and reclassifications between base and working gas. The "implied flow" estimate represents movements of working natural gas into or out of underground

  6. Nanogeochemistry: Geochemical reactions and mass transfers in...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Nanogeochemistry: Geochemical reactions and mass transfers in nanopores ... OSTI Identifier: 913493 Report Number(s): SAND2003-0369J Journal ID: ISSN 0091-7613; TRN: ...

  7. Geothermal/Geochemical Database | Open Energy Information

    Open Energy Info (EERE)

    to library Chart: GeothermalGeochemical DatabaseInfo GraphicMapChart Author Nevada Bureau of Mines and Geology Published Nevada Bureau of Mines and Geology, 2012 DOI Not...

  8. Geochemical Reaction Mechanism Discovery from Molecular Simulation

    SciTech Connect (OSTI)

    Stack, Andrew G.; Kent, Paul R. C.

    2014-11-10

    Methods to explore reactions using computer simulation are becoming increasingly quantitative, versatile, and robust. In this review, a rationale for how molecular simulation can help build better geochemical kinetics models is first given. We summarize some common methods that geochemists use to simulate reaction mechanisms, specifically classical molecular dynamics and quantum chemical methods and discuss their strengths and weaknesses. Useful tools such as umbrella sampling and metadynamics that enable one to explore reactions are discussed. Several case studies wherein geochemists have used these tools to understand reaction mechanisms are presented, including water exchange and sorption on aqueous species and mineral surfaces, surface charging, crystal growth and dissolution, and electron transfer. The impact that molecular simulation has had on our understanding of geochemical reactivity are highlighted in each case. In the future, it is anticipated that molecular simulation of geochemical reaction mechanisms will become more commonplace as a tool to validate and interpret experimental data, and provide a check on the plausibility of geochemical kinetic models.

  9. Geochemical Reaction Mechanism Discovery from Molecular Simulation

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

    Stack, Andrew G.; Kent, Paul R. C.

    2014-11-10

    Methods to explore reactions using computer simulation are becoming increasingly quantitative, versatile, and robust. In this review, a rationale for how molecular simulation can help build better geochemical kinetics models is first given. We summarize some common methods that geochemists use to simulate reaction mechanisms, specifically classical molecular dynamics and quantum chemical methods and discuss their strengths and weaknesses. Useful tools such as umbrella sampling and metadynamics that enable one to explore reactions are discussed. Several case studies wherein geochemists have used these tools to understand reaction mechanisms are presented, including water exchange and sorption on aqueous species and mineralmore » surfaces, surface charging, crystal growth and dissolution, and electron transfer. The impact that molecular simulation has had on our understanding of geochemical reactivity are highlighted in each case. In the future, it is anticipated that molecular simulation of geochemical reaction mechanisms will become more commonplace as a tool to validate and interpret experimental data, and provide a check on the plausibility of geochemical kinetic models.« less

  10. PIC Transcribed Flip Chart Notes

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

    "Workshop" versus "meeting" Could provide someone to take verbal comments Page 5 PIC Transcribed Flip Chart Notes Wednesday, October 31, 2012 300 Area Public Involvement...

  11. Analysis and Geochemical Modeling of Vanadium Contamination in Groundwater

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

    New Rifle Processing Site, Colorado | Department of Energy and Geochemical Modeling of Vanadium Contamination in Groundwater New Rifle Processing Site, Colorado Analysis and Geochemical Modeling of Vanadium Contamination in Groundwater New Rifle Processing Site, Colorado Analysis and Geochemical Modeling of Vanadium Contamination in Groundwater New Rifle Processing Site, Colorado Analysis and Geochemical Modeling of Vanadium Contamination in Groundwater New Rifle Processing Site, Colorado

  12. Novel Coupled Thermochronometric and Geochemical Investigation of Blind

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

    Geothermal Resources in Fault-Controlled Dilational Corners | Department of Energy Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault-Controlled Dilational Corners Novel Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault-Controlled Dilational Corners Novel Coupled Thermochronometric and Geochemical Investigation of Blind Geothermal Resources in Fault-Controlled Dilational Corners presentation at the

  13. Research Notes and Information References

    Energy Science and Technology Software Center (OSTI)

    1994-12-01

    The RNS (Research Notes System) is a set of programs and databases designed to aid the research worker in gathering, maintaining, and using notes taken from the literature. The sources for the notes can be books, journal articles, reports, private conversations, conference papers, audiovisuals, etc. The system ties the databases together in a relational structure, thus eliminating data redundancy while providing full access to all the information. The programs provide the means for access andmore » data entry in a way that reduces the key-entry burden for the user. Each note has several data fields. Included are the text of the note, the subject classification (for retrieval), and the reference identification data. These data are divided into four databases: Document data - title, author, publisher, etc., fields to identify the article within the document; Note data - text and page of the note; Sublect data - subject categories to ensure uniform spelling for searches. Additionally, there are subsidiary files used by the system, including database index and temporary work files. The system provides multiple access routes to the notes, both structurally (access method) and topically (through cross-indexing). Output may be directed to a printer or saved as a file for input to word processing software.« less

  14. Discovering a previously unknown mechanism that halts solar eruptions...

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

    a previously unknown mechanism that halts solar eruptions before they blast into space By John Greenwald December 23, 2015 Tweet Widget Google Plus One Share on Facebook...

  15. OpenEI Community - notes

    Open Energy Info (EERE)

    more

    http:en.openei.orgcommunityblognotes-callcomments notes Linked Open Data Workshop in Washington, D.C. Fri, 28 Sep 2012 00:57:30 +0000 Jweers 521 at...

  16. GETEM Manuals and Revision Notes

    Broader source: Energy.gov [DOE]

    Please refer to these manuals and revision notes prior to downloading and running the Geothermal Electricity Technology Evaluation Model (GETEM). Because this is a beta version, you are urged to...

  17. Bayesian methods for characterizing unknown parameters of material models

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

    Emery, J. M.; Grigoriu, M. D.; Field Jr., R. V.

    2016-02-04

    A Bayesian framework is developed for characterizing the unknown parameters of probabilistic models for material properties. In this framework, the unknown parameters are viewed as random and described by their posterior distributions obtained from prior information and measurements of quantities of interest that are observable and depend on the unknown parameters. The proposed Bayesian method is applied to characterize an unknown spatial correlation of the conductivity field in the definition of a stochastic transport equation and to solve this equation by Monte Carlo simulation and stochastic reduced order models (SROMs). As a result, the Bayesian method is also employed tomore » characterize unknown parameters of material properties for laser welds from measurements of peak forces sustained by these welds.« less

  18. DNA-based methods of geochemical prospecting

    DOE Patents [OSTI]

    Ashby, Matthew

    2011-12-06

    The present invention relates to methods for performing surveys of the genetic diversity of a population. The invention also relates to methods for performing genetic analyses of a population. The invention further relates to methods for the creation of databases comprising the survey information and the databases created by these methods. The invention also relates to methods for analyzing the information to correlate the presence of nucleic acid markers with desired parameters in a sample. These methods have application in the fields of geochemical exploration, agriculture, bioremediation, environmental analysis, clinical microbiology, forensic science and medicine.

  19. A Geochemical Speciation Program Based on PHREEQE

    Energy Science and Technology Software Center (OSTI)

    1992-02-18

    HARPHRQ is a program based on the code PHREEQE and is designed to model geochemical reactions. Like PHREEQE, it can calculate the pH, redox potential and mass transfer as a function of reaction progress and the composition of solution in equilibrium with multiple phases. In addition, HARPHRQ includes options to allow the composition of a solution at a fixed pH to be calculated and to automatically add or remove mineral phases as they become saturatedmore » or exhausted. A separate module can also be interfaced to give a choice of sorption models including the triple-layer model.« less

  20. Monitoring CO2 intrusion and associated geochemical transformations...

    Office of Scientific and Technical Information (OSTI)

    Monitoring CO2 intrusion and associated geochemical transformations in a shallow ... Citation Details In-Document Search Title: Monitoring CO2 intrusion and associated ...

  1. Category:Geochemical Data Analysis | Open Energy Information

    Open Energy Info (EERE)

    category, out of 4 total. G Geochemical Data Analysis Geothermometry T Thermal Ion Dispersion Thermochronometry Retrieved from "http:en.openei.orgwindex.php?titleCategory:Ge...

  2. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and...

    Office of Scientific and Technical Information (OSTI)

    Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer Citation Details In-Document Search Title: Geochemical Impacts of Carbon ...

  3. Geochemical Modeling of the Near-Surface Hydrothermal System...

    Open Energy Info (EERE)

    with non-thermal groundwater. Our conceptual model is based on hypotheses in the literature and published geochemical and petrologic data. Mixing of thermal and non-thermal...

  4. Merging high resolution geophysical and geochemical surveys to...

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

    combine a suite of high resolution geophysical and geochemical techniques to reduce exploration risk by characterizing hydrothermal alteration, fault geometries and relationships. ...

  5. System for identifying known materials within a mixture of unknowns

    DOE Patents [OSTI]

    Wagner, John S.

    1999-01-01

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy.

  6. Method for identifying known materials within a mixture of unknowns

    DOE Patents [OSTI]

    Wagner, John S.

    2000-01-01

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy.

  7. System for identifying known materials within a mixture of unknowns

    DOE Patents [OSTI]

    Wagner, J.S.

    1999-07-20

    One or both of two methods and systems are used to determine concentration of a known material in an unknown mixture on the basis of the measured interaction of electromagnetic waves upon the mixture. One technique is to utilize a multivariate analysis patch technique to develop a library of optimized patches of spectral signatures of known materials containing only those pixels most descriptive of the known materials by an evolutionary algorithm. Identity and concentration of the known materials within the unknown mixture is then determined by minimizing the residuals between the measurements from the library of optimized patches and the measurements from the same pixels from the unknown mixture. Another technique is to train a neural network by the genetic algorithm to determine the identity and concentration of known materials in the unknown mixture. The two techniques may be combined into an expert system providing cross checks for accuracy. 37 figs.

  8. Notes

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

    these lectures will be provided via RealPlayer. Users of Windows- or Macintosh-based computers will be able to see and hear the presentation by way of the following procedures. 1....

  9. Topic A Note: Includes STEPS Subtopic

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

    Topic A Note: Includes STEPS Subtopic 33 Total Projects Developing and Enhancing Workforce Training Programs

  10. Code System to Model Aqueous Geochemical Equilibria.

    Energy Science and Technology Software Center (OSTI)

    2001-08-23

    Version: 00 MINTEQ is a geochemical program to model aqueous solutions and the interactions of aqueous solutions with hypothesized assemblages of solid phases. It was developed for the Environmental Protection Agency to perform the calculations necessary to simulate the contact of waste solutions with heterogeneous sediments or the interaction of ground water with solidified wastes. MINTEQ can calculate ion speciation/solubility, adsorption, oxidation-reduction, gas phase equilibria, and precipitation/dissolution ofsolid phases. MINTEQ can accept a finite massmore » for any solid considered for dissolution and will dissolve the specified solid phase only until its initial mass is exhausted. This ability enables MINTEQ to model flow-through systems. In these systems the masses of solid phases that precipitate at earlier pore volumes can be dissolved at later pore volumes according to thermodynamic constraints imposed by the solution composition and solid phases present. The ability to model these systems permits evaluation of the geochemistry of dissolved traced metals, such as low-level waste in shallow land burial sites. MINTEQ was designed to solve geochemical equilibria for systems composed of one kilogram of water, various amounts of material dissolved in solution, and any solid materials that are present. Systems modeled using MINTEQ can exchange energy and material (open systems) or just energy (closed systems) with the surrounding environment. Each system is composed of a number of phases. Every phase is a region with distinct composition and physically definable boundaries. All of the material in the aqueous solution forms one phase. The gas phase is composed of any gaseous material present, and each compositionally and structurally distinct solid forms a separate phase.« less

  11. Mercury Vapor (Kooten, 1987) | Open Energy Information

    Open Energy Info (EERE)

    DOE-funding Unknown Notes Surface soil-mercury surveys are an inexpensive and useful exploration tool for geothermal resources. ---- Surface geochemical surveys for mercury...

  12. Data Acquisition-Manipulation (Kooten, 1987) | Open Energy Information

    Open Energy Info (EERE)

    DOE-funding Unknown Notes Surface soil-mercury surveys are an inexpensive and useful exploration tool for geothermal resources. ---- Surface geochemical surveys for mercury...

  13. Cuttings Analysis At Coso Geothermal Area (1985-1987) | Open...

    Open Energy Info (EERE)

    useful DOE-funding Unknown Exploration Basis Analyze an indicator of high permeability zones within a geothermal field Notes Petrographic and geochemical analyses of...

  14. Compound and Elemental Analysis At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Nevada Seismic Zone Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical...

  15. Compound and Elemental Analysis At Nw Basin & Range Region (Laney...

    Open Energy Info (EERE)

    Northwest Basin and Range Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical...

  16. Compound and Elemental Analysis At Northern Basin & Range Region...

    Open Energy Info (EERE)

    Northern Basin and Range Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical...

  17. Compound and Elemental Analysis At Buffalo Valley Hot Springs...

    Open Energy Info (EERE)

    Location Buffalo Valley Hot Springs Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical...

  18. Refinery Capacity Report - Explanatory Notes

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

    Energy Information Administration/Refinery Capacity Report 1 Explanatory Notes Survey Methodology Description of Survey Form The Form EIA-820, "Annual Refinery Report," is the primary source of data in the "Refinery Capacity Report" tables. The form collects data on the consumption of purchased steam, electricity, coal, and natural gas; refinery receipts of crude oil by method of transportation; operable capacity for atmospheric crude oil distillation units and downstream

  19. Lecture notes for criticality safety

    SciTech Connect (OSTI)

    Fullwood, R.

    1992-03-01

    These lecture notes for criticality safety are prepared for the training of Department of Energy supervisory, project management, and administrative staff. Technical training and basic mathematics are assumed. The notes are designed for a two-day course, taught by two lecturers. Video tapes may be used at the options of the instructors. The notes provide all the materials that are necessary but outside reading will assist in the fullest understanding. The course begins with a nuclear physics overview. The reader is led from the macroscopic world into the microscopic world of atoms and the elementary particles that constitute atoms. The particles, their masses and sizes and properties associated with radioactive decay and fission are introduced along with Einstein's mass-energy equivalence. Radioactive decay, nuclear reactions, radiation penetration, shielding and health-effects are discussed to understand protection in case of a criticality accident. Fission, the fission products, particles and energy released are presented to appreciate the dangers of criticality. Nuclear cross sections are introduced to understand the effectiveness of slow neutrons to produce fission. Chain reactors are presented as an economy; effective use of the neutrons from fission leads to more fission resulting in a power reactor or a criticality excursion. The six-factor formula is presented for managing the neutron budget. This leads to concepts of material and geometric buckling which are used in simple calculations to assure safety from criticality. Experimental measurements and computer code calculations of criticality are discussed. To emphasize the reality, historical criticality accidents are presented in a table with major ones discussed to provide lessons-learned. Finally, standards, NRC guides and regulations, and DOE orders relating to criticality protection are presented.

  20. AIRMaster+ Release Notes | Department of Energy

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

    AIRMaster+ (Version 1.2.7) Release Notes Release Notes (Version 1.2.7) (296.45 KB) More Documents & Publications AIRMaster+ Software Tool Brochure AIRMaster+ User Manual AIRMaster+ ...

  1. Manhattan Project: A Note on Sources

    Office of Scientific and Technical Information (OSTI)

    A NOTE ON SOURCES Resources > Note on Sources The text for this web site is a combination of original material and adaptations from previous publications of the Department of ...

  2. Manhattan Project: A Note on Sources

    Office of Scientific and Technical Information (OSTI)

    A NOTE ON SOURCES Resources > Note on Sources The text for this web site is a combination ... To the best of our knowledge, all text and images on this web site are in the public ...

  3. Meeting Summary Notes | Department of Energy

    Office of Environmental Management (EM)

    Department of Energy Notes re NOI for Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation notes from meeting on Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation (45.83 KB) More Documents & Publications Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation Public comment re Convention on Supplementary Compensation on Nuclear Damage Contingent

  4. EM QA Working Group September 2011 Notes

    Broader source: Energy.gov [DOE]

    Meeting minutes and notes from the EM QA Working Group video conference meeting held in September 2011.

  5. A Mineralogical Petrographic And Geochemical Study Of Samples...

    Open Energy Info (EERE)

    Mineralogical Petrographic And Geochemical Study Of Samples From Wells In The Geothermal Field Of Milos Island (Greece) Jump to: navigation, search OpenEI Reference LibraryAdd to...

  6. Geochemical Data on Waters, Gases, Scales, and Rocks from the...

    Open Energy Info (EERE)

    Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geochemical Data on Waters, Gases, Scales, and Rocks from the Dixie Valley Region, Nevada (1996-1999)...

  7. Geochemical and isotopic water results, Barrow, Alaska, 2012-2013

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

    Heikoop, Jeff; Wilson, Cathy; Newman, Brent

    2012-07-18

    Data include a large suite of analytes (geochemical and isotopic) for samples collected in Barrow, Alaska (2012-2013). Sample types are indicated, and include soil pore waters, drainage waters, snowmelt, precipitation, and permafrost samples.

  8. Discovering a previously unknown mechanism that halts solar eruptions

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

    before they blast into space | Princeton Plasma Physics Lab Discovering a previously unknown mechanism that halts solar eruptions before they blast into space By John Greenwald December 23, 2015 Tweet Widget Google Plus One Share on Facebook This solar flare occurred at the peak of the solar cycle in October 2014 with no observed eruptions. PPPL researchers say this is a promising candidate for studying the effect of guide magnetic fields. (Photo by NASA) This solar flare occurred at the

  9. Discovering a previously unknown mechanism that halts solar eruptions

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

    before they blast into space | Princeton Plasma Physics Lab Discovering a previously unknown mechanism that halts solar eruptions before they blast into space By John Greenwald December 23, 2015 Tweet Widget Google Plus One Share on Facebook This solar flare occurred at the peak of the solar cycle in October 2014 with no observed eruptions. PPPL researchers say this is a promising candidate for studying the effect of guide magnetic fields. (Photo by NASA) This solar flare occurred at the

  10. SubTER Grand Challenge Roundtable: Imaging Geophysical and Geochemical

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

    Signals in the Subsurface | Department of Energy SubTER Grand Challenge Roundtable: Imaging Geophysical and Geochemical Signals in the Subsurface SubTER Grand Challenge Roundtable: Imaging Geophysical and Geochemical Signals in the Subsurface Grand Challenge Workshop -Imaging Subsurface.pdf (434.52 KB) More Documents & Publications AGU SubTER Town Hall Presentation 2015 SubTER Presentation at Town Hall - American Geophysical Union Controlling Subsurface Fractures and Fluid Flow: A Basic

  11. Geochemical Mud Logging of geothermal drilling

    SciTech Connect (OSTI)

    Tonani, F.B.; Guidi, M.; Johnson, S.D.

    1988-01-01

    The experience and results described in the present paper were developed over nearly two decades, with a major R&D project around 1980. The expression Geochemical Mud Logging (GML) has ill defined meaning in the geothermal industry, and ought to be specified. We refer here to GML as featuring mud and formation fluid tracer(s) and temperature as the bare essentials and with specified accuracies. Air and water logging are expected to be less demanding with regard to analysis accuracy, but are not discussed in this report. During application of GML to several drill holes with low formation permeabilities and under conditions of high temperature and high mud weight, GML as specified, revealed unexpected influx of formation brine. Such influx was a recurring feature that has been referenced to individual fractures and reflects both fracture size and permeability. As a consequence, continuous or subcontinuous sampling of mud systems appears more cost effective than trying to keep up with cumulative changes of bulk mud composition; although, the latter approach is more sensitive to extremely low rate, steady, inflow of formation fluid into the mud system. It appears, that based on this influx of formation fluid, permeability can be estimated well before mud losses are detected and/or drill strings are stuck. The main advantages of GML are: (1) the capability to assess formation temperature and permeability in nearly real time, resulting in (a) assessments of undisturbed formation and (b) having data in hand for holes lost during drilling operations and (2) being effective under conditions of very high temperatures where electrical logs are very costly and less reliable. Estimated cost for GML is $1500 per day (1982) based on assessments of R&D operations. However, extrapolating to larger scale services and to different operating conditions is indeed difficult. GML cost is probably the only significant point of controversy with regard to GML being a viable evaluation tool.

  12. Property:ExplorationNotes | Open Energy Information

    Open Energy Info (EERE)

    the property "ExplorationNotes" Showing 1 page using this property. R RAPIDOverviewGeothermalExplorationCalifornia + The Geothermal Resources Prospecting Permit (PRC...

  13. EM QA Working Group September 2011 Notes

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

    suspectcounterfeit items, software QA, and corrective actions? Bob also noted that we need to be diligent in the understanding and use of the metrics to avoid potential issues ...

  14. Simulated NMIS Imaging Data for an Unknown Object

    SciTech Connect (OSTI)

    Walker, Mark E; Mihalczo, John T

    2012-04-01

    This report presents simulated Nuclear Materials Identification System (NMIS) imaging data for an unclassified object, whose characteristics are initially unknown to the reader. This data will be used to test various analysis capabilities and was created with a simple deterministic ray-tracing algorithm. NMIS is a time-dependent coincidence counting system that is used to characterize both fissile and non-fissile materials undergoing nondestructive assay. NMIS characterizes materials by interrogating them with neutrons, either from an associated-particle deuterium-tritium (DT) neutron generator, which produces a time and directionally tagged monoenergetic beam of 14.1 MeV neutrons, or a time-tagged spontaneous fission source in an ionization chamber.

  15. Geochemical Modeling of ILAW Lysimeter Water Extracts

    SciTech Connect (OSTI)

    Cantrell, Kirk J.

    2014-12-22

    Geochemical modeling results of water extracts from simulated immobilized low-activity waste (ILAW) glasses, placed in lysimeters for eight years suggest that the secondary phase reaction network developed using product consistency test (PCT) results at 90°C may need to be modified for field conditions. For sediment samples that had been collected from near the glass samples, the impact of glass corrosion could be readily observed based upon the pH of their water extracts. For unimpacted sediments the pH ranged from 7.88 to 8.11 with an average of 8.04. Sediments that had observable impacts from glass corrosion exhibited elevated pH values (as high as 9.97). For lysimeter sediment samples that appear to have been impacted by glass corrosion to the greatest extent, saturation indices determined for analcime, calcite, and chalcedony in the 1:1 water extracts were near equilibrium and were consistent with the secondary phase reaction network developed using PCT results at 90°C. Fe(OH)3(s) also appears to be essentially at equilibrium in extracts impacted by glass corrosion, but with a solubility product (log Ksp) that is approximately 2.13 units lower than that used in the secondary phase reaction network developed using PCT results at 90°C. The solubilities of TiO2(am) and ZrO2(am) also appear to be much lower than that assumed in the secondary phase reaction network developed using PCT results at 90°C. The extent that the solubility of TiO2(am) and ZrO2(am) were reduced relative to that assumed in the secondary phase reaction network developed using PCT results at 90°C could not be quantified because the concentrations of Ti and Zr in the extracts were below the estimated quantification limit. Gibbsite was consistently highly oversaturated in the extract while dawsonite was at or near equilibrium. This suggests that dawsonite might be a more suitable phase for the secondary phase reaction network than gibbsite under field conditions. This may be due to the

  16. Geochemical Enhancement Of Enhanced Geothermal System Reservoirs: An Integrated Field And Geochemical Approach

    SciTech Connect (OSTI)

    Joseph N. Moore

    2007-12-31

    The geochemical effects of injecting fluids into geothermal reservoirs are poorly understood and may be significantly underestimated. Decreased performance of injection wells has been observed in several geothermal fields after only a few years of service, but the reasons for these declines has not been established. This study had three primary objectives: 1) determine the cause(s) of the loss of injectivity; 2) utilize these observations to constrain numerical models of water-rock interactions; and 3) develop injection strategies for mitigating and reversing the potential effects of these interactions. In this study rock samples from original and redrilled injection wells at Coso and the Salton Sea geothermal fields, CA, were used to characterize the mineral and geochemical changes that occurred as a result of injection. The study documented the presence of mineral scales and at both fields in the reservoir rocks adjacent to the injection wells. At the Salton Sea, the scales consist of alternating layers of fluorite and barite, accompanied by minor anhydrite, amorphous silica and copper arsenic sulfides. Amorphous silica and traces of calcite were deposited at Coso. The formation of silica scale at Coso provides an example of the effects of untreated (unacidified) injectate on the reservoir rocks. Scanning electron microscopy and X-ray diffractometry were used to characterize the scale deposits. The silica scale in the reservoir rocks at Coso was initially deposited as spheres of opal-A 1-2 micrometers in diameter. As the deposits matured, the spheres coalesced to form larger spheres up to 10 micrometer in diameter. Further maturation and infilling of the spaces between spheres resulted in the formation of plates and sheets that substantially reduce the original porosity and permeability of the fractures. Peripheral to the silica deposits, fluid inclusions with high water/gas ratios provide a subtle record of interactions between the injectate and reservoir rocks

  17. How 12 geochemical methods fared in GERT project in Permian basin

    SciTech Connect (OSTI)

    Calhoun, G.G.

    1991-05-13

    This paper reports on Geochemical Evaluation Research Team (GERT) which is an experiment conceived to identify surface geochemical exploration methods that are effective in finding oil. Many of the methods use technology developed in the last 5 years. In fact, one of the challenging jobs for the geochemical explorationist is keeping up with new techniques and improvements. The way to minimize dry holes is to screen prospects with carefully selected geochemical techniques prior to acreage acquisition and seismic surveys.

  18. Validation of the WATEQ4 geochemical model for uranium

    SciTech Connect (OSTI)

    Krupka, K.M.; Jenne, E.A.; Deutsch, W.J.

    1983-09-01

    As part of the Geochemical Modeling and Nuclide/Rock/Groundwater Interactions Studies Program, a study was conducted to partially validate the WATEQ4 aqueous speciation-solubility geochemical model for uranium. The solubility controls determined with the WATEQ4 geochemical model were in excellent agreement with those laboratory studies in which the solids schoepite (UO/sub 2/(OH)/sub 2/ . H/sub 2/O), UO/sub 2/(OH)/sub 2/, and rutherfordine ((UO/sub 2/CO/sub 3/) were identified as actual solubility controls for uranium. The results of modeling solution analyses from laboratory studies of uranyl phosphate solids, however, identified possible errors in the characterization of solids in the original solubility experiments. As part of this study, significant deficiencies in the WATEQ4 thermodynamic data base for uranium solutes and solids were corrected. Revisions included recalculation of selected uranium reactions. Additionally, thermodynamic data for the hydroxyl complexes of U(VI), including anionic (VI) species, were evaluated (to the extent permitted by the available data). Vanadium reactions were also added to the thermodynamic data base because uranium-vanadium solids can exist in natural ground-water systems. This study is only a partial validation of the WATEQ4 geochemical model because the available laboratory solubility studies do not cover the range of solid phases, alkaline pH values, and concentrations of inorganic complexing ligands needed to evaluate the potential solubility of uranium in ground waters associated with various proposed nuclear waste repositories. Further validation of this or other geochemical models for uranium will require careful determinations of uraninite solubility over the pH range of 7 to 10 under highly reducing conditions and of uranyl hydroxide and phosphate solubilities over the pH range of 7 to 10 under oxygenated conditions.

  19. Geochemical Triggers of Arsenic Mobilization during Managed Aquifer

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

    Recharge | Stanford Synchrotron Radiation Lightsource Geochemical Triggers of Arsenic Mobilization during Managed Aquifer Recharge Monday, February 29, 2016 Managed aquifer recharge (MAR) is an increasingly used water enhancement strategy, which involves subsurface storage of water supplies in groundwater aquifers. While MAR projects have the potential to alleviate water deficits, they can also adversely impact groundwater quality by altering the native geochemistry of the aquifer and

  20. Argonne Geothermal Geochemical Database v2.0

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

    Harto, Christopher

    A database of geochemical data from potential geothermal sources aggregated from multiple sources as of March 2010. The database contains fields for the location, depth, temperature, pH, total dissolved solids concentration, chemical composition, and date of sampling. A separate tab contains data on non-condensible gas compositions. The database contains records for over 50,000 wells, although many entries are incomplete. Current versions of source documentation are listed in the dataset.

  1. Argonne Geothermal Geochemical Database v2.0

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

    Harto, Christopher

    2013-05-22

    A database of geochemical data from potential geothermal sources aggregated from multiple sources as of March 2010. The database contains fields for the location, depth, temperature, pH, total dissolved solids concentration, chemical composition, and date of sampling. A separate tab contains data on non-condensible gas compositions. The database contains records for over 50,000 wells, although many entries are incomplete. Current versions of source documentation are listed in the dataset.

  2. PIA - Savannah River Operations Office Lotus Domino/Notes System...

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

    Lotus DominoNotes System PDF icon PIA - Savannah River Operations Office Lotus DominoNotes System More Documents & Publications PIA - DOE Savannah River Operations Office PRISM ...

  3. Note: On the wavelength dependence of the intensity calibration...

    Office of Scientific and Technical Information (OSTI)

    Note: On the wavelength dependence of the intensity calibration factor of extreme ... Title: Note: On the wavelength dependence of the intensity calibration factor of extreme ...

  4. Notes on Newton-Krylov based Incompressible Flow Projection Solver...

    Office of Scientific and Technical Information (OSTI)

    Notes on Newton-Krylov based Incompressible Flow Projection Solver Citation Details In-Document Search Title: Notes on Newton-Krylov based Incompressible Flow Projection Solver The ...

  5. Notes on Newton-Krylov based Incompressible Flow Projection Solver...

    Office of Scientific and Technical Information (OSTI)

    Notes on Newton-Krylov based Incompressible Flow Projection Solver Citation Details In-Document Search Title: Notes on Newton-Krylov based Incompressible Flow Projection Solver ...

  6. Note: Coherent resonances observed in the dissociative electron...

    Office of Scientific and Technical Information (OSTI)

    Note: Coherent resonances observed in the dissociative electron attachment to carbon monoxide Citation Details In-Document Search Title: Note: Coherent resonances observed in the ...

  7. Xyce parallel electronic simulator release notes.

    SciTech Connect (OSTI)

    Keiter, Eric Richard; Hoekstra, Robert John; Mei, Ting; Russo, Thomas V.; Schiek, Richard Louis; Thornquist, Heidi K.; Rankin, Eric Lamont; Coffey, Todd Stirling; Pawlowski, Roger Patrick; Santarelli, Keith R.

    2010-05-01

    The Xyce Parallel Electronic Simulator has been written to support, in a rigorous manner, the simulation needs of the Sandia National Laboratories electrical designers. Specific requirements include, among others, the ability to solve extremely large circuit problems by supporting large-scale parallel computing platforms, improved numerical performance and object-oriented code design and implementation. The Xyce release notes describe: Hardware and software requirements New features and enhancements Any defects fixed since the last release Current known defects and defect workarounds For up-to-date information not available at the time these notes were produced, please visit the Xyce web page at http://www.cs.sandia.gov/xyce.

  8. RAP Meeting Transcribed Flip Chart Notes

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

    Flip Chart Notes February 15, 2012 Site-wide Permit Workshop May 3 1. Have "post-workshop" session to discuss HAB next steps 2. Recommend Ecology sponsors & facilitates Workshop - Ecology captures notes, but HAB members track issues of concern, too. 3. Web-ex for public when it fits 4. Pre-workshop meeting with HAB issue leaders (potential speakers) Page 1 300 Area HAB next steps... IM & Pam 1. Issue managers meet to review potential issues for HAB/committees 2. Bring back to

  9. Application Note: Power Grid Modeling With Xyce.

    SciTech Connect (OSTI)

    Sholander, Peter E.

    2015-06-01

    This application note describes how to model steady-state power flows and transient events in electric power grids with the SPICE-compatible Xyce TM Parallel Electronic Simulator developed at Sandia National Labs. This application notes provides a brief tutorial on the basic devices (branches, bus shunts, transformers and generators) found in power grids. The focus is on the features supported and assumptions made by the Xyce models for power grid elements. It then provides a detailed explanation, including working Xyce netlists, for simulating some simple power grid examples such as the IEEE 14-bus test case.

  10. Notes on beam dynamics in linear accelerators

    SciTech Connect (OSTI)

    Gluckstern, R.L.

    1980-09-01

    A collection of notes, on various aspects of beam dynamics in linear accelerators, which were produced by the author during five years (1975 to 1980) of consultation for the LASL Accelerator Technology (AT) Division and Medium-Energy Physics (MP) Division is presented.

  11. Geochemical drivers of organic matter decomposition in Arctic tundra soils

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

    Herndon, Elizabeth M.; Yang, Ziming; Graham, David E.; Wullschleger, Stan D.; Gu, Baohua; Liang, Liyuan; Bargar, John; Janot, Noemie; Regier, Tom Z.

    2015-12-07

    Climate change is warming tundra ecosystems in the Arctic, resulting in the decomposition of previously-frozen soil organic matter (SOM) and release of carbon (C) to the atmosphere; however, the processes that control SOM decomposition and C emissions remain highly uncertain. In this study, we evaluate geochemical factors that influence anaerobic production of carbon dioxide (CO2) and methane (CH4) in the active layers of four ice-wedge polygons. Surface and soil pore waters were collected during the annual thaw season over a two-year period in an area containing waterlogged, low-centered polygons and well-drained, high-centered polygons. We report spatial and seasonal patterns ofmore » dissolved gases in relation to the geochemical properties of Fe and organic C as determined using spectroscopic and chromatographic techniques. Iron was present as Fe(II) in soil solution near the permafrost boundary but enriched as Fe(III) in the middle of the active layer, similar to dissolved aromatic-C and organic acids. Dissolved CH4 increased relative to dissolved CO2 with depth and varied with soil moisture in the middle of the active layer in patterns that were positively correlated with the proportion of dissolved Fe(III) in transitional and low-centered polygon soils but negatively correlated in the drier flat- and high-centered polygons. These results suggest that microbial-mediated Fe oxidation and reduction influence respiration/fermentation of SOM and production of substrates (e.g., low-molecular-weight organic acids) for methanogenesis. As a result, we infer that geochemical differences induced by water saturation dictate microbial products of SOM decomposition, and Fe geochemistry is an important factor regulating methanogenesis in anoxic tundra soils.« less

  12. Geochemical drivers of organic matter decomposition in Arctic tundra soils

    SciTech Connect (OSTI)

    Herndon, Elizabeth M.; Yang, Ziming; Graham, David E.; Wullschleger, Stan D.; Gu, Baohua; Liang, Liyuan; Bargar, John; Janot, Noemie; Regier, Tom Z.

    2015-12-07

    Climate change is warming tundra ecosystems in the Arctic, resulting in the decomposition of previously-frozen soil organic matter (SOM) and release of carbon (C) to the atmosphere; however, the processes that control SOM decomposition and C emissions remain highly uncertain. In this study, we evaluate geochemical factors that influence anaerobic production of carbon dioxide (CO2) and methane (CH4) in the active layers of four ice-wedge polygons. Surface and soil pore waters were collected during the annual thaw season over a two-year period in an area containing waterlogged, low-centered polygons and well-drained, high-centered polygons. We report spatial and seasonal patterns of dissolved gases in relation to the geochemical properties of Fe and organic C as determined using spectroscopic and chromatographic techniques. Iron was present as Fe(II) in soil solution near the permafrost boundary but enriched as Fe(III) in the middle of the active layer, similar to dissolved aromatic-C and organic acids. Dissolved CH4 increased relative to dissolved CO2 with depth and varied with soil moisture in the middle of the active layer in patterns that were positively correlated with the proportion of dissolved Fe(III) in transitional and low-centered polygon soils but negatively correlated in the drier flat- and high-centered polygons. These results suggest that microbial-mediated Fe oxidation and reduction influence respiration/fermentation of SOM and production of substrates (e.g., low-molecular-weight organic acids) for methanogenesis. As a result, we infer that geochemical differences induced by water saturation dictate microbial products of SOM decomposition, and Fe geochemistry is an important factor regulating methanogenesis in anoxic tundra soils.

  13. EQ3/6 A Software Package for Geochemical Modeling

    Energy Science and Technology Software Center (OSTI)

    2010-12-13

    EQ3/6 is a software package for modeling geochemical interactions between aqueous solution, solids, and gases, following principles of chemical thermodynamics and chemical kinetics. It is useful for interpreting aqueiou solution chemical compositions and for calculating the consequences of reaction of such solutions with minerals, other solids, and gases. It is designed to run in a command line environment. EQPT is a thermodynamic data file preprocessor. EQ3NR is a speciation-solubility code. EQ6 is a reaction pathmore » code.« less

  14. Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide...

    Office of Scientific and Technical Information (OSTI)

    Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide, Brine and Trace Metal Leakage into an Unconfined, Oxidizing Carbonate Aquifer, Version 2.1 Citation Details...

  15. Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators

    Broader source: Energy.gov [DOE]

    Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators presentation at the April 2013 peer review meeting held in Denver, Colorado.

  16. New Mexico Play Fairway Analysis: New Mexico available wells for geochemical sampling

    SciTech Connect (OSTI)

    Jeff Pepin

    2015-11-15

    This is a map package that is used to show the wells in New Mexico that may be available for geochemical sampling.

  17. Optimizing parameters for predicting the geochemical behavior and performance of discrete fracture networks in geothermal systems

    Broader source: Energy.gov [DOE]

    Optimizing parameters for predicting the geochemical behavior and performance of discrete fracture networks in geothermal systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

  18. LLW notes. Volume 11, No.8

    SciTech Connect (OSTI)

    1996-12-01

    `LLW Notes` is distributed by Afton Associates, Inc. to Low-Level Radioactive Waste Forum Participants and other state, and compact officials identified by those Participants to receive `LLW Notes`. The Low-Level Radioactive Waste Forum (LLW Forum) is an association of state and compact representatives, appointed by governors and compact commissions, established to facilitate state and compact implementation of the Low-Level Radioactive Waste Policy Act of 1980 and the Low-Level Radioactive Waste Policy Amendments Act of 1985 and to promote the objectives of low-level radioactive waste regional compacts. The LLW Forum provides an opportunity for state and compact officials to share information with one another and to exchange views with officials of federal agencies and other interested parties.

  19. LLW notes, Vol. 11, No. 2

    SciTech Connect (OSTI)

    1996-03-01

    `LLW Notes` is distributed by Afton Associates, Inc. to Low-Level Radioactive Waste Forum Participants and other state, and compact officials identified by those Participants to receive LLW Notes. The Low-Level Radioactive Waste Forum (LLW Forum) is an association of state and compact representatives, appointed by governors and compact commissions, established to facilitate state and compact implementation of the Low-Level Radioactive Waste Policy Act of 1980 and the Low-Level Radioactive Waste Policy amendments Act of 1985 and to promote the objectives of low-level radioactive waste regional compacts. The LLW Forum provides an opportunity for state and compact officials to share information with one another and to exchange views with officials of federal agencies and other interested parties.

  20. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Shale Gas Production Definitions Key Terms Definition Shale Gas Natural gas produced from organic (black) shale formations. For definitions of related energy terms, refer to the EIA Energy Glossary. Sources Energy Information Administration, Office of Oil and Gas Explanatory Notes Shale Gas production data collected in conjunction with proved reserves data on Form EIA-23 are unofficial. Official Shale Gas production data from Form EIA-895 can be found in Natural Gas Gross Withdrawals and

  1. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Products Supplied Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels per

  2. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Other Products Definitions Key Terms Definition Aviation Gasoline A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel specifications are provided in ASTM Specification D 910 and Military Specification MIL-G-5572. Note: Data on blending components are not counted in data on finished aviation gasoline. Gas Plant Operator Any firm, including a gas plant owner, which

  3. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Exports Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels per short ton.

  4. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Exports by Destination Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels

  5. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Area of Entry Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels per short

  6. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    PAD District Imports by Country of Origin Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for

  7. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    U.S. Imports by Country of Origin Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is

  8. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Imports by Destination Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels

  9. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Receipts by Pipeline, Tanker, and Barge Between PAD Districts Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The

  10. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Pipeline, Tanker, and Barge Between PADDs Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for

  11. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Tanker and Barge Between PADDs Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5

  12. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Shell Storage Capacity at Operable Refineries Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for

  13. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Working Storage Capacity at Operable Refineries Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor

  14. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Yield Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels per short ton.

  15. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Production Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels per short

  16. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    & Blender Net Production Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5

  17. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Petroleum Product Prices by Sales Type Definitions Key Terms Definition Aviation Gasoline (Finished) A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel specifications are provided in ASTM Specification D 910 and Military Specification MIL-G-5572. Note: Data on blending components are not counted in data on finished aviation gasoline. Gas Plant Operator Any firm,

  18. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Refinery Stocks Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5 barrels per

  19. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Prices, Sales Volumes & Stocks by State Definitions Key Terms Definition Aviation Gasoline (Finished) A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel specifications are provided in ASTM Specification D 910 and Military Specification MIL-G-5572. Note: Data on blending components are not counted in data on finished aviation gasoline. Gas Plant Operator Any firm,

  20. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Supply and Disposition Balance Definitions Key Terms Definition Asphalt A dark-brown-to-black cement-like material containing bitumens as the predominant constituent obtained by petroleum processing; used primarily for road construction. It includes crude asphalt as well as the following finished products: cements, fluxes, the asphalt content of emulsions (exclusive of water), and petroleum distillates blended with asphalt to make cutback asphalts. Note: The conversion factor for asphalt is 5.5

  1. HSEP Committee Meeting - Transcribed Flipchart Notes

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

    Flipchart Notes August 8, 2013 Safety Culture Next Steps 1. Continue to get periodic briefings from SCIPT - progress on action items, contractor engagement, etc. 2. Get update on HSS review Page 1 DS Tanks/Flammable Gas - Next Steps 1. Update after DOE report on tank flow rate monitoring is available (Jan/Feb) 2. Tom w/follow up with concerns about pressurization alarms Page 2 Emergency Preparedness/Response: Input - Strategies for Awareness 1. Use real examples when trying to increase

  2. labNotes | netl.doe.gov

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

    LabNotes NETL Validates Innovative Spectrometry Technique libs-PIC.JPG Graphic representation of in situ measurements of calcium carbonate dissolution under rising CO2 pressure using underwater laser-induced breakdown spectroscopy. Image used as the front cover for the Journal of Analytical Atomic Spectrometry's July 2016 issue. An article highlighting NETL's research into the use of laser spectrometry to collect data vital to ensuring the efficacy and safety of geologic carbon storage sites was

  3. Geochemical and Isotopic Interpretations of Groundwater Flow in the Oasis Valley Flow System, Southern Nevada

    SciTech Connect (OSTI)

    J.M. Thomas; F.C. Benedict, Jr.; T.P. Rose; R.L. Hershey; J.B. Paces; Z.E. Peterman; I.M. Farnham; K.H. Johannesson; A.K. Singh; K.J. Stetzenbach; G.B. Hudson; J.M. Kenneally; G.F. Eaton; D.K. Smith

    2003-01-08

    This report summarizes the findings of a geochemical investigation of the Pahute Mesa-Oasis Valley groundwater flow system in southwestern Nevada. It is intended to provide geochemical data and interpretations in support of flow and contaminant transport modeling for the Western and Central Pahute Mesa Corrective Action Units.

  4. Geochemical and Geomechanical Effects on Wellbore Cement Fractures

    SciTech Connect (OSTI)

    Um, Wooyong; Jung, Hun Bok; Kabilan, Senthil; Fernandez, Carlos A.; Brown, Christopher F.

    2014-12-31

    Experimental studies were conducted using batch reactors, X-ray microtomograpy (XMT), and computational fluid dynamics (CFD) simulation to determine changes in cement fracture surfaces, fluid flow pathways, and permeability with geochemical and geomechanical processes. Composite Portland cement-basalt caprock core with artificial fractures was prepared and reacted with CO2-saturated groundwater at 50°C and 10 MPa for 3 to 3.5 months under static conditions to understand the geochemical and geomechanical effects on the integrity of wellbores containing defects. Cement-basalt interface samples were subjected to mechanical stress at 2.7 MPa before the CO2 reaction. XMT provided three-dimensional (3-D) visualization of the opening and interconnection of cement fractures due to mechanical stress. After the CO2 reaction, XMT images revealed that calcium carbonate precipitation occurred extensively within the fractures in the cement matrix, but only partially along fractures located at the cement-basalt interface. The permeability calculated based on CFD simulation was in agreement with the experimentally measured permeability. The experimental results imply that the wellbore cement with fractures is likely to be healed during exposure to CO2-saturated groundwater under static conditions, whereas fractures along the cement-caprock interface are still likely to remain vulnerable to the leakage of CO2. CFD simulation for the flow of different fluids (CO2-saturated brine and supercritical CO2) using a pressure difference of 20 kPa and 200 kPa along ~2 cm-long cement fractures showed that a pressure gradient increase resulted in an increase of CO2 fluids flux by a factor of only ~3-9 because the friction of CO2 fluids on cement fracture surfaces increased with higher flow rate as well. At the same pressure gradient, the simulated flow rate was higher for supercritical CO2 than CO2-saturated brine by a factor of only ~2-3, because the viscosity of supercritical CO2 is much

  5. Geochemical and Geomechanical Effects on Wellbore Cement Fractures

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

    Um, Wooyong; Jung, Hun Bok; Kabilan, Senthil; Fernandez, Carlos A.; Brown, Christopher F.

    2014-12-31

    Experimental studies were conducted using batch reactors, X-ray microtomograpy (XMT), and computational fluid dynamics (CFD) simulation to determine changes in cement fracture surfaces, fluid flow pathways, and permeability with geochemical and geomechanical processes. Composite Portland cement-basalt caprock core with artificial fractures was prepared and reacted with CO2-saturated groundwater at 50°C and 10 MPa for 3 to 3.5 months under static conditions to understand the geochemical and geomechanical effects on the integrity of wellbores containing defects. Cement-basalt interface samples were subjected to mechanical stress at 2.7 MPa before the CO2 reaction. XMT provided three-dimensional (3-D) visualization of the opening and interconnectionmore » of cement fractures due to mechanical stress. After the CO2 reaction, XMT images revealed that calcium carbonate precipitation occurred extensively within the fractures in the cement matrix, but only partially along fractures located at the cement-basalt interface. The permeability calculated based on CFD simulation was in agreement with the experimentally measured permeability. The experimental results imply that the wellbore cement with fractures is likely to be healed during exposure to CO2-saturated groundwater under static conditions, whereas fractures along the cement-caprock interface are still likely to remain vulnerable to the leakage of CO2. CFD simulation for the flow of different fluids (CO2-saturated brine and supercritical CO2) using a pressure difference of 20 kPa and 200 kPa along ~2 cm-long cement fractures showed that a pressure gradient increase resulted in an increase of CO2 fluids flux by a factor of only ~3-9 because the friction of CO2 fluids on cement fracture surfaces increased with higher flow rate as well. At the same pressure gradient, the simulated flow rate was higher for supercritical CO2 than CO2-saturated brine by a factor of only ~2-3, because the viscosity of supercritical CO2 is

  6. The hydrogeologic-geochemical model of Cerro Prieto revisited

    SciTech Connect (OSTI)

    Lippmann, M.J.; Halfman, S.E.; Truesdell, A.H.; Manon M., A.

    1989-01-01

    As the exploitation of the Cerro Prieto, Mexico, geothermal field continues, there is increasing evidence that the hydrogeologic model developed by Halfman et al. (1984, 1986) presents the basic features controlling the movement of geothermal fluids in the system. At the present time the total installed capacity at Cerro Prieto is 620 MWe requiring the production of more than 10,500 tonnes/hr of a brine-steam mixture. This significant rate of fluid production has resulted in changes in reservoir thermodynamic conditions and in the chemistry of the produced fluids. After reviewing the hydrogeologic-geochemical model of Cerro Prieto, some of the changes observed in the field due to its exploitation are discussed and interpreted on the basis of the model. 21 refs., 11 figs., 1 tab.

  7. eNews Note of Appreciation

    National Nuclear Security Administration (NNSA)

    3 Issue 25 ASC eNews Quarterly Newsletter September 2013 A Note of Appreciation Reeta Garber The ASC Program would like to recognize Reeta Garber for her leadership in designing and developing programmatic communications tools and activities and to wish her the very best as she retires (again) to begin a new phase in her life. Since 1998 Reeta has supported the ASC Program as an important member of the core team responsible for spreading the word about DOE/NNSA laboratory and Federal efforts in

  8. MICROBOONE-NOTE-1006-PUB Study Towards

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

    6-PUB Study Towards an Event Selection for Neutral Current Inclusive Single π 0 Production in MicroBooNE The MicroBooNE Collaboration May 3, 2016 Abstract This note describes a Monte Carlo study towards an event selection for the neutrino induced Neutral Current (NC) single π 0 cross section using the MicroBooNE detector. The NC single π 0 channel is especially important in neutrino oscillation experiments as it is one of the main backgrounds in any ν e or ν e appearance search. This

  9. WATEQ3 geochemical model: thermodynamic data for several additional solids

    SciTech Connect (OSTI)

    Krupka, K.M.; Jenne, E.A.

    1982-09-01

    Geochemical models such as WATEQ3 can be used to model the concentrations of water-soluble pollutants that may result from the disposal of nuclear waste and retorted oil shale. However, for a model to competently deal with these water-soluble pollutants, an adequate thermodynamic data base must be provided that includes elements identified as important in modeling these pollutants. To this end, several minerals and related solid phases were identified that were absent from the thermodynamic data base of WATEQ3. In this study, the thermodynamic data for the identified solids were compiled and selected from several published tabulations of thermodynamic data. For these solids, an accepted Gibbs free energy of formation, ..delta..G/sup 0//sub f,298/, was selected for each solid phase based on the recentness of the tabulated data and on considerations of internal consistency with respect to both the published tabulations and the existing data in WATEQ3. For those solids not included in these published tabulations, Gibbs free energies of formation were calculated from published solubility data (e.g., lepidocrocite), or were estimated (e.g., nontronite) using a free-energy summation method described by Mattigod and Sposito (1978). The accepted or estimated free energies were then combined with internally consistent, ancillary thermodynamic data to calculate equilibrium constants for the hydrolysis reactions of these minerals and related solid phases. Including these values in the WATEQ3 data base increased the competency of this geochemical model in applications associated with the disposal of nuclear waste and retorted oil shale. Additional minerals and related solid phases that need to be added to the solubility submodel will be identified as modeling applications continue in these two programs.

  10. Meeting Notes re NOI for Convention on Supplementary Compensation |

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

    Department of Energy Notes re NOI for Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation notes from meeting on Convention on Supplementary Compensation Meeting Notes re NOI for Convention on Supplementary Compensation (45.83 KB) More Documents & Publications Convention on Supplementary Compensation for Nuclear Damage Contingent Cost Allocation NOPR NEI CIGNLCommentsDOECSCRulemaking11-30-10.doc

  11. DOE Durability Working Group October 2011 Meeting Notes | Department of

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

    Energy 1 Meeting Notes DOE Durability Working Group October 2011 Meeting Notes Meeting notes from the Fall 2011 Durability Working Group (DWG) Meeting sponsored by the U.S. Department of Energy (DOE) Fuel Cell Technologies Program. Notes also include a summary of progress on action items from the Spring 2011 DWG meeting. durability_working_group_minutes_oct_2011.pdf (54.58 KB) More Documents & Publications DOE Durability Working Group October 2010 Meeting Minutes DOE Durability Working

  12. Metal-Organic Frameworks Based on Previously Unknown Zr8/Hf Cubic...

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

    Metal-Organic Frameworks Based on Previously Unknown Zr8Hf Cubic Clusters Previous Next List Dawei Feng, Hai-Long Jiang, Ying-Pin Chen, Zhi-Yuan Gu, Zhangwen Wei, and Hong-Cai...

  13. Discovery of a meta-stable Al-Sm phase with unknown stoichiometry...

    Office of Scientific and Technical Information (OSTI)

    Discovery of a meta-stable Al-Sm phase with unknown stoichiometry using a genetic algorithm Citation Details In-Document Search Title: Discovery of a meta-stable Al-Sm phase with...

  14. The MicroBooNE Experiment - Public Notes

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

    Public Notes Page Back to the Publications Page 7/4/16 MICROBOONE-NOTE-1019-PUB Convolutional Neural Networks Applied to Neutrino Events in a Liquid Argon Time Projection Chamber 7/4/16 MICROBOONE-NOTE-1017-PUB A Method to Extract the Charge Distribution Arriving at the TPC Wire Planes in MicroBooNE 7/4/16 MICROBOONE-NOTE-1016-PUB Noise Characterization and Filtering in the MicroBooNE TPC 7/4/16 MICROBOONE-NOTE-1015-PUB The Pandora multi-algorithm approach to automated pattern recognition in LAr

  15. Modeling Background Radiation in our Environment Using Geochemical Data

    SciTech Connect (OSTI)

    Malchow, Russell L.; Marsac, Kara; Burnley, Pamela; Hausrath, Elisabeth; Haber, Daniel; Adcock, Christopher

    2015-02-01

    Radiation occurs naturally in bedrock and soil. Gamma rays are released from the decay of the radioactive isotopes K, U, and Th. Gamma rays observed at the surface come from the first 30 cm of rock and soil. The energy of gamma rays is specific to each isotope, allowing identification. For this research, data was collected from national databases, private companies, scientific literature, and field work. Data points were then evaluated for self-consistency. A model was created by converting concentrations of U, K, and Th for each rock and soil unit into a ground exposure rate using the following equation: D=1.32 K+ 0.548 U+ 0.272 Th. The first objective of this research was to compare the original Aerial Measurement System gamma ray survey to results produced by the model. The second objective was to improve the method and learn the constraints of the model. Future work will include sample data analysis from field work with a goal of improving the geochemical model.

  16. 31 TAC, part 1, chapter 9, rule 9.11 Geophysical and Geochemical...

    Open Energy Info (EERE)

    9, rule 9.11 Geophysical and Geochemical Exploration Permits Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- RegulationRegulation: 31 TAC, part...

  17. Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide...

    Office of Scientific and Technical Information (OSTI)

    Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide, Brine and Trace Metal Leakage into an Unconfined, Oxidizing Carbonate Aquifer, Version 2.1 Bacon, Diana H. carbon...

  18. Merging high resolution geophysical and geochemical surveys to reduce exploration risk at Glass Buttes, Oregon

    Broader source: Energy.gov [DOE]

    DOE Geothermal Technologies Peer Review - 2010. The primary objective of this project is to combine a suite of high resolution geophysical and geochemical techniques to reduce exploration risk by characterizing hydrothermal alteration, fault geometries and relationships.

  19. A geochemical model of the Kilauea east rift zone | Open Energy...

    Open Energy Info (EERE)

    rift zone Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A geochemical model of the Kilauea east rift zone Abstract NA Author Donald Thomas...

  20. A Geological and Hydro-Geochemical Study of the Animas Geothermal...

    Open Energy Info (EERE)

    Hydro-Geochemical Study of the Animas Geothermal Area, Hidalgo County, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Geological...

  1. Geochemical Monitoring Considerations for the FutureGen 2.0 Project

    SciTech Connect (OSTI)

    Amonette, James E.; Johnson, Timothy A.; Spencer, Clayton F.; Zhong, Lirong; Szecsody, James E.; Vermeul, Vince R.

    2014-12-31

    Geochemical monitoring is an essential component of a suite of monitoring technologies designed to evaluate CO2 mass balance and detect possible loss of containment at the FutureGen 2.0 geologic sequestration site near Jacksonville, IL. This presentation gives an overview of the potential geochemical approaches and tracer technologies that were considered, and describes the evaluation process by which the most cost-effective and robust of these were selected for implementation

  2. Effect of curing conditions on the geotechnical and geochemical properties of CFBC ashes

    SciTech Connect (OSTI)

    Bland, A.E.

    1999-07-01

    Western Research Institute, in cooperation with the US Department of Energy Federal Energy Technology Center, initiated a multi-year program to examine the relationship between CFBC ash chemistry and geotechnical properties as they relate to ash disposal and utilization. Four CFBC facilities supplied ash from their units for the study representing high-sulfur (4%) and medium-sulfur (1.8%) bituminous coal. Sub-bituminous coal (0.9% sulfur) and petroleum coke (5--6% sulfur) fired ashes were also included in the study. The ashes were composed principally of large quantities of anhydrite (CaSO{sub 4}) and lime (CaO) and minor amounts of calcite (CaCO{sub 3}). The ash curing study addressed the impact of curing conditions (sealed and saturated curing and 23 C and 5 C curing temperature) on the geochemical and geotechnical properties of the ash. The strength development and expansion varied with the type and characteristics of the ashes. The expansion appeared to be inversely related to strength development. As the strength decreased under saturated curing, the expansion increased significantly. The application of 5 C saturated curing resulted in further strength loss and increased expansion. The hydration reaction products appeared to be principally the hydration of lime (CaO) to portlandite (Ca[OH]{sub 2}), the hydration of anhydrite (CaSO{sub 4}) to gypsum (CaSO{sub 4} {center{underscore}dot} 2H{sub 2}O), and the precipitation of ettringite (Ca{sub 6}Al{sub 2}[SO{sub 4}]{sub 3}[OH]{sub 12} {center{underscore}dot} 26H{sub 2}O) from the soluble calcium, sulfates and alumina. No thaumasite was noted in the specimens. The ashes appeared to follow one of several hydration reaction trends: (1) ettringite-only development, (2) ettringite and/or gypsum early followed by later gypsum formation, or (3) gypsum-only formation. Testing confirmed that the hydration reaction chemistry was related to geotechnical properties of the ashes. Strength development and expansion appeared to

  3. BNL ALARA Center: ALARA Notes, No. 9

    SciTech Connect (OSTI)

    Khan, T.A.; Xie, J.W.; Beckman, M.C.

    1994-02-01

    This issue of the Brookhaven National Laboratory`s Alara Notes includes the agenda for the Third International Workshop on ALARA and specific instructions on the use of the on-line fax-on-demand service provided by BNL. Other topics included in this issue are: (1) A discussion of low-level discharges from Canadian nuclear plants, (2) Safety issues at French nuclear plants, (3) Acoustic emission as a means of leak detection, (4) Replacement of steam generators at Doel-3, Beaznau, and North Anna-1, (5) Remote handling equipment at Bruce, (6) EPRI`s low level waste program, (7) Radiation protection during concrete repairs at Savannah River, (8) Reactor vessel stud removal/repair at Comanche Peak-1, (9) Rework of reactor coolant pump motors, (10) Restoration of service water at North Anna-1 and -2, (11) Steam generator tubing problems at Mihama-1, (12) Full system decontamination at Indian Point-2, (13) Chemical decontamination at Browns Ferry-2, and (14) Inspection methodolody in France and Japan.

  4. Consortium for Energy Efficiency (CEE) Notes_ Clothes Dryer Test Procedure

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

    | Department of Energy Consortium for Energy Efficiency (CEE) Notes_ Clothes Dryer Test Procedure Consortium for Energy Efficiency (CEE) Notes_ Clothes Dryer Test Procedure CEE and DOE staff discussed the importance of relying on the DOE test method as the sole metric for efficiency and energy use reporting. CEE_Notes_ClothesDryerTestProcedure_25Apr2016 (352.34 KB) More Documents & Publications 2015-03-23 Issuance: Energy Conservation Standards for Residential Clothes Dryers; Request for

  5. Sample Memorandum to Reactivate a Directive Placed on Hold (NOTE...

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

    Sample Memorandum to Reactivate a Directive Placed on Hold (NOTE: Per Office of Executive Secretariat procedures, please use Calibri, 12 point font for this memorandum.) (Effective...

  6. Workshop Notes from ""Compressed Natural Gas and Hydrogen Fuels...

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

    Hydrogen Fuels: Lessons Learned for the Safe Deployment of Vehicles"" Workshop, December 10-11, 2009 Workshop Notes from ""Compressed Natural Gas and Hydrogen Fuels: Lessons ...

  7. West Flank Coso FORGE: well photos and notes

    SciTech Connect (OSTI)

    Doug Blankenship

    2015-12-21

    Photos and detailed down-hole lithology notes for wells CGEH-1 and 74-2 at the West Flank Coso, Ca FORGE location.

  8. COLLOQUIUM - PLEASE NOTE SPECIAL DATE/TIME: The Magnetospheric...

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

    COLLOQUIUM - PLEASE NOTE SPECIAL DATETIME: The Magnetospheric MultiScale Mission Investigation of Magnetic Reconnection Professor Roy Torbert University of New Hampshire ...

  9. Natural bacterial communities serve as quantitative geochemical biosensors

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

    Smith, Mark B.; Rocha, Andrea M.; Smillie, Chris S.; Olesen, Scott W.; Paradis, Charles; Wu, Liyou; Campbell, James H.; Fortney, Julian L.; Mehlhorn, Tonia L.; Lowe, Kenneth A.; et al

    2015-05-12

    Biological sensors can be engineered to measure a wide range of environmental conditions. Here we show that statistical analysis of DNA from natural microbial communities can be used to accurately identify environmental contaminants, including uranium and nitrate at a nuclear waste site. In addition to contamination, sequence data from the 16S rRNA gene alone can quantitatively predict a rich catalogue of 26 geochemical features collected from 93 wells with highly differing geochemistry characteristics. We extend this approach to identify sites contaminated with hydrocarbons from the Deepwater Horizon oil spill, finding that altered bacterial communities encode a memory of prior contamination,more » even after the contaminants themselves have been fully degraded. We show that the bacterial strains that are most useful for detecting oil and uranium are known to interact with these substrates, indicating that this statistical approach uncovers ecologically meaningful interactions consistent with previous experimental observations. Future efforts should focus on evaluating the geographical generalizability of these associations. Taken as a whole, these results indicate that ubiquitous, natural bacterial communities can be used as in situ environmental sensors that respond to and capture perturbations caused by human impacts. These in situ biosensors rely on environmental selection rather than directed engineering, and so this approach could be rapidly deployed and scaled as sequencing technology continues to become faster, simpler, and less expensive. Here we show that DNA from natural bacterial communities can be used as a quantitative biosensor to accurately distinguish unpolluted sites from those contaminated with uranium, nitrate, or oil. These results indicate that bacterial communities can be used as environmental sensors that respond to and capture perturbations caused by human impacts.« less

  10. Geochemical characteristics of bitumens and seeps from Tanzania

    SciTech Connect (OSTI)

    Mpanju, F. ); Philp, P. )

    1991-03-01

    A number of bitumen extracts from prospective source rocks and oil seeps of potential oil-producing areas in Tanzania have been characterized by a variety of geochemical techniques. The data obtained from this study have provided additional insight into the source rock potential of these areas. However, in this paper it is proposed to discuss in detail the results from two of the more unusual samples in this region, namely Wingayongo and Pemba. The Wingayongo bitumens isolated from an exposed Neocomian-aged sandstone, possibly a paleoreservoir, are almost totally devoid of n-alkanes and steranes and dominated by hopane-type biomarkers with the so-called immature {beta}{beta}-stereochemistry at the C{sub 17} and C{sub 21} positions. There is no typical evidence of biodegradation having occurred leading to the proposal of an unusual source material or maturity history for this sample. The Pemba seep samples were also characterized by relatively high concentrations of hopanes with the immature stereochemistry at the C{sub 17} and C{sub 21} positions and a virtual absence of n-alkanes and steranes. The aromatic fractions contained relatively high concentrations of hopanic acids, with the immature stereochemistry at C{sub 17} and C{sub 21} positions and a virtual absence of n-alkanes and steranes. The aromatic fractions contained relatively high concentrations of hopanic acids, with the immature stereochemistry at C{sub 17} and C{sub 21}. On the basis of these data, it is proposed that the seeps in the Pemba region are not true oil seeps. Rather they are formed as a result of extremely high levels of bacterial activity with the bacteria utilizing natural gas in the region as the substrate. The net result is a material referred to in other areas of the world as paraffin dirt whose occurrence results from extensive microbial activity in the region and not directly from seepage of products having a thermal origin.

  11. Natural bacterial communities serve as quantitative geochemical biosensors

    SciTech Connect (OSTI)

    Smith, Mark B.; Rocha, Andrea M.; Smillie, Chris S.; Olesen, Scott W.; Paradis, Charles; Wu, Liyou; Campbell, James H.; Fortney, Julian L.; Mehlhorn, Tonia L.; Lowe, Kenneth A.; Earles, Jennifer E.; Phillips, Jana; Techtmann, Steve M.; Joyner, Dominique C.; Elias, Dwayne A.; Bailey, Kathryn L.; Hurt, Richard A.; Preheim, Sarah P.; Sanders, Matthew C.; Yang, Joy; Mueller, Marcella A.; Brooks, Scott; Watson, David B.; Zhang, Ping; He, Zhili; Dubinsky, Eric A.; Adams, Paul D.; Arkin, Adam P.; Fields, Matthew W.; Zhou, Jizhong; Alm, Eric J.; Hazen, Terry C.

    2015-05-12

    Biological sensors can be engineered to measure a wide range of environmental conditions. Here we show that statistical analysis of DNA from natural microbial communities can be used to accurately identify environmental contaminants, including uranium and nitrate at a nuclear waste site. In addition to contamination, sequence data from the 16S rRNA gene alone can quantitatively predict a rich catalogue of 26 geochemical features collected from 93 wells with highly differing geochemistry characteristics. We extend this approach to identify sites contaminated with hydrocarbons from the Deepwater Horizon oil spill, finding that altered bacterial communities encode a memory of prior contamination, even after the contaminants themselves have been fully degraded. We show that the bacterial strains that are most useful for detecting oil and uranium are known to interact with these substrates, indicating that this statistical approach uncovers ecologically meaningful interactions consistent with previous experimental observations. Future efforts should focus on evaluating the geographical generalizability of these associations. Taken as a whole, these results indicate that ubiquitous, natural bacterial communities can be used as in situ environmental sensors that respond to and capture perturbations caused by human impacts. These in situ biosensors rely on environmental selection rather than directed engineering, and so this approach could be rapidly deployed and scaled as sequencing technology continues to become faster, simpler, and less expensive. Here we show that DNA from natural bacterial communities can be used as a quantitative biosensor to accurately distinguish unpolluted sites from those contaminated with uranium, nitrate, or oil. These results indicate that bacterial communities can be used as environmental sensors that respond to and capture perturbations caused by human impacts.

  12. Performance study of LMS based adaptive algorithms for unknown system identification

    SciTech Connect (OSTI)

    Javed, Shazia; Ahmad, Noor Atinah

    2014-07-10

    Adaptive filtering techniques have gained much popularity in the modeling of unknown system identification problem. These techniques can be classified as either iterative or direct. Iterative techniques include stochastic descent method and its improved versions in affine space. In this paper we present a comparative study of the least mean square (LMS) algorithm and some improved versions of LMS, more precisely the normalized LMS (NLMS), LMS-Newton, transform domain LMS (TDLMS) and affine projection algorithm (APA). The performance evaluation of these algorithms is carried out using adaptive system identification (ASI) model with random input signals, in which the unknown (measured) signal is assumed to be contaminated by output noise. Simulation results are recorded to compare the performance in terms of convergence speed, robustness, misalignment, and their sensitivity to the spectral properties of input signals. Main objective of this comparative study is to observe the effects of fast convergence rate of improved versions of LMS algorithms on their robustness and misalignment.

  13. Production of unknown transactinides in asymmetry-exit-channel quasifission reactions

    SciTech Connect (OSTI)

    Adamian, G.G.; Antonenko, N. V.; Zubov, A. S.

    2005-03-01

    Possibilities of production of new isotopes of superheavy nuclei with charge numbers 104-108 in asymmetry-exit-channel quasifission reactions are studied for the first time. The optimal conditions for the synthesis are suggested in this type of reaction. The products of suggested reactions can fill a gap of unknown isotopes between the isotopes of heaviest nuclei obtained in cold and hot complete fusion reactions.

  14. EIA-906 & EIA-920, and EIA-923 Database Notes

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

    EIA-906 & EIA-920, and EIA-923 Database Notes" ,"Date","Subject","Notes" ,38086,"Excel File Documentation","The documentation included with the Excel file has been updated to include the year to date columns at the end (far right) of the file. In addition, the documentation now clearly notes that the total consumption numbers include fuel consumed at combined heat and power plants for the purpose of producing process steam."

  15. Soil Iodine Determination in Deccan Syneclise, India: Implications for Near Surface Geochemical Hydrocarbon Prospecting

    SciTech Connect (OSTI)

    Mani, Devleena; Kumar, T. Satish; Rasheed, M. A.; Patil, D. J.; Dayal, A. M.; Rao, T. Gnaneshwar; Balaram, V.

    2011-03-15

    The association of iodine with organic matter in sedimentary basins is well documented. High iodine concentration in soils overlying oil and gas fields and areas with hydrocarbon microseepage has been observed and used as a geochemical exploratory tool for hydrocarbons in a few studies. In this study, we measure iodine concentration in soil samples collected from parts of Deccan Syneclise in the west central India to investigate its potential application as a geochemical indicator for hydrocarbons. The Deccan Syneclise consists of rifted depositional sites with Gondwana-Mesozoic sediments up to 3.5 km concealed under the Deccan Traps and is considered prospective for hydrocarbons. The concentration of iodine in soil samples is determined using ICP-MS and the values range between 1.1 and 19.3 ppm. High iodine values are characteristic of the northern part of the sampled region. The total organic carbon (TOC) content of the soil samples range between 0.1 and 1.3%. The TOC correlates poorly with the soil iodine (r{sup 2} < 1), indicating a lack of association of iodine with the surficial organic matter and the possibility of interaction between the seeping hydrocarbons and soil iodine. Further, the distribution pattern of iodine compares well with two surface geochemical indicators: the adsorbed light gaseous hydrocarbons (methane through butane) and the propane-oxidizing bacterial populations in the soil. The integration of geochemical observations show the occurrence of elevated values in the northern part of the study area, which is also coincident with the presence of exposed dyke swarms that probably serve as conduits for hydrocarbon microseepage. The corroboration of iodine with existing geological, geophysical, and geochemical data suggests its efficacy as one of the potential tool in surface geochemical exploration of hydrocarbons. Our study supports Deccan Syneclise to be promising in terms of its hydrocarbon prospects.

  16. Workshop Notes from "Compressed Natural Gas and Hydrogen Fuels...

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

    exchange information among experts from China, India, and the U.S. on compressed natural ... It should be noted that in 2008, there were about 490,000 CNG vehicles in China. China ...

  17. Federal Utility Partnership Working Group Meeting Notes | Department...

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

    Federal Utility Partnership Working Group Meeting Notes Spring 2013 Meeting Report (510.93 KB) Fall 2012 Meeting Report (606.19 KB) Spring 2012 Meeting Report (307.53 KB) Fall 2011 ...

  18. PLEASE NOTE THURSDAY DATE - COLLOQUIUM: Professor Ralph Roskies...

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

    May 23, 2013, 4:15pm to 5:30pm Colloquia MBG Auditorium PLEASE NOTE THURSDAY DATE - COLLOQUIUM: Professor Ralph Roskies - "Big Data at the Pittsburgh Supercomputing Center" ...

  19. Reconstruction of signals with unknown spectra in information field theory with parameter uncertainty

    SciTech Connect (OSTI)

    Ensslin, Torsten A.; Frommert, Mona [Max-Planck-Institut fuer Astrophysik, Karl-Schwarzschild-Str. 1, 85741 Garching (Germany)

    2011-05-15

    The optimal reconstruction of cosmic metric perturbations and other signals requires knowledge of their power spectra and other parameters. If these are not known a priori, they have to be measured simultaneously from the same data used for the signal reconstruction. We formulate the general problem of signal inference in the presence of unknown parameters within the framework of information field theory. To solve this, we develop a generic parameter-uncertainty renormalized estimation (PURE) technique. As a concrete application, we address the problem of reconstructing Gaussian signals with unknown power-spectrum with five different approaches: (i) separate maximum-a-posteriori power-spectrum measurement and subsequent reconstruction, (ii) maximum-a-posteriori reconstruction with marginalized power-spectrum, (iii) maximizing the joint posterior of signal and spectrum, (iv) guessing the spectrum from the variance in the Wiener-filter map, and (v) renormalization flow analysis of the field-theoretical problem providing the PURE filter. In all cases, the reconstruction can be described or approximated as Wiener-filter operations with assumed signal spectra derived from the data according to the same recipe, but with differing coefficients. All of these filters, except the renormalized one, exhibit a perception threshold in case of a Jeffreys prior for the unknown spectrum. Data modes with variance below this threshold do not affect the signal reconstruction at all. Filter (iv) seems to be similar to the so-called Karhune-Loeve and Feldman-Kaiser-Peacock estimators for galaxy power spectra used in cosmology, which therefore should also exhibit a marginal perception threshold if correctly implemented. We present statistical performance tests and show that the PURE filter is superior to the others, especially if the post-Wiener-filter corrections are included or in case an additional scale-independent spectral smoothness prior can be adopted.

  20. U.S. Department of Energy Onboard Storage Tank Workshop Notes...

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

    Onboard Storage Tank Workshop Notes U.S. Department of Energy Onboard Storage Tank Workshop Notes These notes and action items were derived from the Onboard Storage Tank Workshop ...

  1. A note on entropic force and brane cosmology

    SciTech Connect (OSTI)

    Ling, Yi; Wu, Jian-Pin E-mail: jianpinwu@yahoo.com.cn

    2010-08-01

    Recently Verlinde proposed that gravity is an entropic force caused by information changes when a material body moves away from the holographic screen. In this note we apply this argument to brane cosmology, and show that the cosmological equation can be derived from this holographic scenario.

  2. Tribal Consultation and Stakeholder Outreach Meeting Notes and Analysis

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

    Strategy on the Arctic Region (NSAR) - Ten Year Renewable Energy Strategy Tribal Consultation and Stakeholder Outreach Meeting Notes and Analysis Prepared by Denali Daniels and Associates, Inc. Fall 2014 Office of Indian Energy Table o f C ontents Executive S ummary .............................................................................................................................................. 2 --- 6 Background

  3. Optimizing parameters for predicting the geochemical behavior and performance of discrete fracture networks in geothermal systems

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

    Optimizing parameters for predicting the geochemical behavior and performance of discrete fracture networks in geothermal systems Alexandra Hakala (National Energy Technology Laboratory) Track 1 Project Officer: Lauren Boyd Total Project Funding: $995,718 April 25, 2013 This presentation does not contain any proprietary confidential, or otherwise restricted information. 2 | US DOE Geothermal Office eere.energy.gov Relevance/Impact of Research * Fractures - primary pathway for geothermal heat

  4. Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators

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

    Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators Project Officer: Eric Hass Total Project Funding: $999,000 April 24, 2013 Craig Cooper Larry Hull Idaho National Laboratory This presentation does not contain any proprietary confidential, or otherwise restricted information. 2 | US DOE Geothermal Program eere.energy.gov Relevance/Impact of Research Geothermometry enables estimation of

  5. Geochemical and isotopic results for groundwater, drainage waters, snowmelt, permafrost, precipitation in Barrow, Alaska (USA) 2012-2013

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

    Wilson, Cathy; Newman, Brent; Heikoop, Jeff

    2012-07-18

    Data include a large suite of analytes (geochemical and isotopic) for samples collected in Barrow, Alaska (2012-2013). Sample types are indicated, and include soil pore waters, drainage waters, snowmelt, precipitation, and permafrost samples.

  6. Geochemical and isotopic results for groundwater, drainage waters, snowmelt, permafrost, precipitation in Barrow, Alaska (USA) 2012-2013

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

    Wilson, Cathy; Newman, Brent; Heikoop, Jeff

    Data include a large suite of analytes (geochemical and isotopic) for samples collected in Barrow, Alaska (2012-2013). Sample types are indicated, and include soil pore waters, drainage waters, snowmelt, precipitation, and permafrost samples.

  7. Kinetics of Uranium(VI) Desorption from Contaminated Sediments: Effect of Geochemical Conditions and Model Evaluation

    SciTech Connect (OSTI)

    Liu, Chongxuan; Shi, Zhenqing; Zachara, John M.

    2009-09-01

    Stirred-flow cell experiments were performed to investigate the kinetics of uranyl [U(VI)] desorption from a contaminated sediment collected from the Hanford 300 Area at the US Department of Energy (DOE) Hanford Site, Washington. Three influent solutions of variable pH, Ca and carbonate concentrations that affected U(VI) aqueous and surface speciation were used under dynamic flow conditions to evaluate the effect of geochemical conditions on the rate of U(VI) desorption. The measured rate of U(VI) desorption varied with solution chemical composition that evolved as a result of thermodynamic and kinetic interactions between the influent solutions and sediment. The solution chemical composition that led to a lower equilibrium U(VI) sorption to the solid phase yielded a faster desorption rate. The experimental results were used to evaluate a multi-rate, surface complexation model (SCM) that has been proposed to describe U(VI) desorption kinetics in the Hanford sediment that contained complex sorbed U(VI) species in mass transfer limited domains. The model was modified and supplemented by including multi-rate, ion exchange reactions to describe the geochemical interactions between the solutions and sediment. With the same set of model parameters, the modified model reasonably well described the evolution of major ions and the rates of U(VI) desorption under variable geochemical and flow conditions, implying that the multi-rate SCM is an effective way to describe U(VI) desorption kinetics in subsurface sediments.

  8. Geochemical factors affecting radionuclide transport through near and far fields at a Low-Level Waste Disposal Site

    SciTech Connect (OSTI)

    Kaplan, D.I.; Seme, R.J.; Piepkho, M.G.

    1995-03-01

    The concentration of low-level waste (LLW) contaminants in groundwater is determined by the amount of contaminant present in the solid waste, rate of release from the waste and surrounding barriers, and a number of geochemical processes including adsorption, desorption, diffusion, precipitation, and dissolution. To accurately predict radionuclide transport through the subsurface, it is essential that the important geochemical processes affecting radionuclide transport be identified and, perhaps more importantly, accurately quantified and described in a mathematically defensible manner.

  9. Thermodynamic Data for Geochemical Modeling of Carbonate Reactions Associated with CO2 Sequestration – Literature Review

    SciTech Connect (OSTI)

    Krupka, Kenneth M.; Cantrell, Kirk J.; McGrail, B. Peter

    2010-09-28

    Permanent storage of anthropogenic CO2 in deep geologic formations is being considered as a means to reduce the concentration of atmospheric CO2 and thus its contribution to global climate change. To ensure safe and effective geologic sequestration, numerous studies have been completed of the extent to which the CO2 migrates within geologic formations and what physical and geochemical changes occur in these formations when CO2 is injected. Sophisticated, computerized reservoir simulations are used as part of field site and laboratory CO2 sequestration studies. These simulations use coupled multiphase flow-reactive chemical transport models and/or standalone (i.e., no coupled fluid transport) geochemical models to calculate gas solubility, aqueous complexation, reduction/oxidation (redox), and/or mineral solubility reactions related to CO2 injection and sequestration. Thermodynamic data are critical inputs to modeling geochemical processes. The adequacy of thermodynamic data for carbonate compounds has been identified as an important data requirement for the successful application of these geochemical reaction models to CO2 sequestration. A review of thermodynamic data for CO2 gas and carbonate aqueous species and minerals present in published data compilations and databases used in geochemical reaction models was therefore completed. Published studies that describe mineralogical analyses from CO2 sequestration field and natural analogue sites and laboratory studies were also reviewed to identify specific carbonate minerals that are important to CO2 sequestration reactions and therefore require thermodynamic data. The results of the literature review indicated that an extensive thermodynamic database exists for CO2 and CH4 gases, carbonate aqueous species, and carbonate minerals. Values of ∆fG298° and/or log Kr,298° are available for essentially all of these compounds. However, log Kr,T° or heat capacity values at temperatures above 298 K exist for less than

  10. Role of Definitive Radiation Therapy in Carcinoma of Unknown Primary in the Abdomen and Pelvis

    SciTech Connect (OSTI)

    Kelly, Patrick; Das, Prajnan; Varadhachary, Gauri R.; Fontanilla, Hiral P.; Krishnan, Sunil; Delclos, Marc E.; Jhingran, Anuja; Eifel, Patricia J.; Crane, Christopher H.

    2012-04-01

    Objectives: Carcinoma of unknown primary (CUP) in the abdomen and pelvis is a heterogeneous group of cancers with no standard treatment. Considered by many to be incurable, these patients are often treated with chemotherapy alone. In this study, we determined the effectiveness of radiation therapy in combination with chemotherapy in patients with CUP in the abdomen and pelvis. Patients and Methods: Medical records were reviewed for 37 patients with CUP treated with radiation therapy for disease located in the soft tissues and/or nodal basins of the abdomen and pelvis at University of Texas M.D. Anderson Cancer between 2002 and 2009. All patients underwent chemotherapy, either before or concurrent with radiation therapy. Patients were selected for radiation therapy on the basis of histologic type, disease extent, and prior therapy response. Twenty patients underwent definitive radiation therapy (defined as radiation therapy targeting all known disease sites with at least 45 Gy) and 17 patients underwent palliative radiation therapy. Only 6 patients had surgical resection of their disease. Patient and treatment characteristics were extracted and the endpoints of local disease control, progression-free survival (PFS), overall survival (OS), and treatment-related toxicity incidence were analyzed. Results: The 2-year PFS and OS rates for the entire cohort were 32% and 57%, respectively. However, in patients treated with definitive radiation therapy, the rates were 48% and 76%, and 7 patients lived more than 3 years after treatment with no evidence of disease progression. Nevertheless, radiation-associated toxicity was significant in this cohort, as 40% experienced Grade 2 or higher late toxicities. Conclusions: The use of definitive radiation therapy should be considered in selected patients with CUP in the soft tissues or nodal basins of the abdomen and pelvis.

  11. LLW Notes, Volume 9, Number 6. October 1994

    SciTech Connect (OSTI)

    1994-10-01

    LLW Notes is distributed to Low-Level Radioactive Waste Forum Participants and other state and compact officials identified by those Participants to receive LLW Notes. The Low-Level Radioactive Waste Forum is an association of state and compact representatives appointed by governors and compact commissions, established to facilitate state and compact commission implementation of the Low- Level Radioactive Waste Policy Act of 1980 and the Low-Level Radioactive Waste Policy Amendments Act of 1985 and to promote the objectives of low-level radioactive waste regional compacts. The Forum provides an opportunity for states and compacts to share information with one another and to exchange views with officials of federal agencies and other interested parties.

  12. Application note : using open source schematic capture tools with Xyce.

    SciTech Connect (OSTI)

    Russo, Thomas V.

    2013-08-01

    The development of the XyceTM Parallel Electronic Simulator has focused entirely on the creation of a fast, scalable simulation tool, and has not included any schematic capture or data visualization tools. This application note will describe how to use the open source schematic capture tool gschem and its associated netlist creation tool gnetlist to create basic circuit designs for Xyce, and how to access advanced features of Xyce that are not directly supported by either gschem or gnetlist.

  13. State Energy Data System 2014 Price and Expenditure Technical Notes

    Gasoline and Diesel Fuel Update (EIA)

    Price and Expenditure Technical Notes U.S. Energy Information Administration | State Energy Data 2014: Prices and Expenditures 3 Purpose The State Energy Data System (SEDS) was developed and is maintained and operated by the U.S. Energy Information Administration (EIA). The goal in maintaining SEDS is to create historical time series of energy production, consumption, prices, and expenditures by state that are defined as consistently as possible over time and across sectors. SEDS exists for two

  14. - Resilient Electric Distribution Grid R&D Workshop Notes

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

    th - Resilient Electric Distribution Grid R&D Workshop Notes Breakout session: Identification of R&D areas for Design, preparedness, and planning for a resilient electric distribution grid Moderator: Russell Bent, Los Alamos National Laboratory  Segmentation and recombination were considered as the first main area. o One of participants stated it could be in the form of a microgrid  Data sharing and operation is also important especially in real-time o GIS was suggested

  15. June 2016 LabNotes | netl.doe.gov

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

    June 2016 LabNotes Intern Publishes Paper on the Effects of Hydraulic Fracturing Fluid on Marcellus Shale For the last two and a half years, NETL ORISE intern Matt Dieterich has been working closely with NETL researchers, Barbara Kutchko and Angela Goodman, learning to use some of the cutting-edge analytical equipment at NETL. Recently, their research efforts have culminated in the publication of Dieterich's first peer-reviewed paper. The article, "Characterization of Marcellus Shale and

  16. Geochemical Behaviour of S, Cl and Fe in Silicate Melts/Glasses Simulating

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

    Natural Magmas | Stanford Synchrotron Radiation Lightsource Geochemical Behaviour of S, Cl and Fe in Silicate Melts/Glasses Simulating Natural Magmas Monday, March 26, 2012 - 11:00am SSRL Conference Room 137-322 G. Giuli, R. Alonso-Mori, E. Paris, P. Glatzel, S. Eeckhout, M. Carroll, School of Science and Technology, Geology Division, University of Camerino, Via G. III da Varano, 62032 Camerino; e-mail: The solubility behaviour of S and Cl in silicate magmas is a key to understand the

  17. Evaluation of Groundwater Movement in the Frenchman Flat CAU Using Geochemical and Isotopic Analysis

    SciTech Connect (OSTI)

    R. Hershey; J. Thomas; T. Rose; J. Paces; I. Farnham; C. Benedict, Jr.

    2005-03-01

    The principal pathway for radionuclide migration from underground tests in Frenchman Flat, on the Nevada Test Site, to the accessible environment is groundwater flow. Two potential pathways for radionuclide transport via groundwater have been identified from hydrologic data: (1) radionuclide transport downward from the alluvial and volcanic aquifers into the underlying carbonate aquifer; and (2) radionuclide transport laterally to the carbonate aquifer surrounding Frenchman Flat. This report presents an evaluation of geochemical and environmental isotopic data to test these potential pathways and to identify other groundwater flowpaths in, and out of, Frenchman Flat.

  18. Geochemical Data Package for Performance Assessment Calculations Related to the Savannah River Site

    SciTech Connect (OSTI)

    Kaplan, Daniel I.

    2010-03-15

    The Savannah River Site disposes of low-activity radioactive waste within subsurface-engineered facilities. One of the tools used to establish the capacity of a given site to safely store radioactive waste (i.e., that a site does not exceed its Waste Acceptance Criteria) is the Performance Assessment (PA). The objective of this document is to provide the geochemical values for the PA calculations. This work is being conducted as part of the on-going maintenance program that permits the PA to periodically update existing calculations when new data becomes available.

  19. Remote Raman - laser induced breakdown spectroscopy (LIBS) geochemical investigation under Venus atmospheric conditions

    SciTech Connect (OSTI)

    Clegg, Sanuel M; Barefield, James E; Humphries, Seth D; Wiens, Roger C; Vaniman, D. T.; Sharma, S. K.; Misra, A. K.; Dyar, M. D.; Smrekar, S. E.

    2010-12-13

    The extreme Venus surface temperatures ({approx}740 K) and atmospheric pressures ({approx}93 atm) create a challenging environment for surface missions. Scientific investigations capable of Venus geochemical observations must be completed within hours of landing before the lander will be overcome by the harsh atmosphere. A combined remote Raman - LIBS (Laser Induced Breakdown Spectroscopy) instrument is capable of accomplishing the geochemical science goals without the risks associated with collecting samples and bringing them into the lander. Wiens et al. and Sharma et al. demonstrated that both analytical techniques can be integrated into a single instrument capable of planetary missions. The focus of this paper is to explore the capability to probe geologic samples with Raman - LIBS and demonstrate quantitative analysis under Venus surface conditions. Raman and LIBS are highly complementary analytical techniques capable of detecting both the mineralogical and geochemical composition of Venus surface materials. These techniques have the potential to profoundly increase our knowledge of the Venus surface composition, which is currently limited to geochemical data from Soviet Venera and VEGA landers that collectively suggest a surface composition that is primarily tholeiitic basaltic with some potentially more evolved compositions and, in some locations, K-rich trachyandesite. These landers were not equipped to probe the surface mineralogy as can be accomplished with Raman spectroscopy. Based on the observed compositional differences and recognizing the imprecise nature of the existing data, 15 samples were chosen to constitute a Venus-analog suite for this study, including five basalts, two each of andesites, dacites, and sulfates, and single samples of a foidite, trachyandesite, rhyolite, and basaltic trachyandesite under Venus conditions. LIBS data reduction involved generating a partial least squares (PLS) model with a subset of the rock powder standards to

  20. Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt & Subtle Volcanic Systems, Hawaii & Maui

    Broader source: Energy.gov [DOE]

    DOE Geothermal Technologies Peer Review 2010 - Presentation. Project Objective: To use a combination of traditional geophysical and geochemical tools with exploration suites not typically used in geothermal exploration.

  1. Notes from Financial and Physical Oil Market Linkages

    Gasoline and Diesel Fuel Update (EIA)

    Notes from Financial and Physical Oil Market Linkages August 24, 2011 Session 1: 9:30 a.m. - 11:00 a.m. Paper Title: Does 'Paper Oil' Matter? Presenter: Michel Robe, American University Discussant: James Smith, Southern Methodist University Paper Abstract We construct a uniquely detailed, comprehensive dataset of trader positions in U.S. energy futures markets. We find considerable changes in the make-up of the open interest between 2000 and 2010 and show that these changes impact asset pricing.

  2. MICROBOONE-NOTE-1008-PUB Michel Electron Reconstruction Using

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

    8-PUB Michel Electron Reconstruction Using the MicroBooNE LArTPC Cosmic Data The MicroBooNE Collaboration August 25, 2016 Abstract MicroBooNE is a Liquid Argon Time Projection Chamber (LArTPC) neutrino detector located in the Booster Neutrino Beamline at Fermilab which began collecting neutrino data in October 2015. MicroBooNE aims to explore the low-energy excess in the ν e spectrum reported by MiniBooNE as well as perform ν-Ar cross-section measurements. In this note, we present the current

  3. DOE-EERE Durability Working Group Meeting Notes

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

    DOE-EERE Durability Working Group (DWG) Meeting Thursday, October 13, 2011 Boston, MA Meeting Notes D. Myers and R. Borup Meeting Agenda 6:30 pm Welcome and introductory comments Debbie Myers (Argonne) and Rod Borup (Los Alamos) - co-chairs 6:40-7:45 pm Descriptions and summaries of results of modeling efforts in durability projects Dane Morgan, University of Wisconsin-Madison Srikanth Arisetty, ANL Adam Weber, LBNL Shanna Knights, Ballard Sergei Burlatsky, UTC Power Jean St-Pierre, University

  4. COLLOQUIUM: NOTE SPECIAL DATE - THURSDAY: Unique Vulnerability of the New

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

    York/New Jersey Metro Region to Hurricane Destruction - A New Perspective Based on Recent Research on Irene 2011 and Sandy 2012 | Princeton Plasma Physics Lab February 28, 2013, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: NOTE SPECIAL DATE - THURSDAY: Unique Vulnerability of the New York/New Jersey Metro Region to Hurricane Destruction - A New Perspective Based on Recent Research on Irene 2011 and Sandy 2012 Professor Nicholas K. Coch Queens College CUNY In the last two years. the

  5. V-147: IBM Lotus Notes Mail Client Lets Remote Users Execute...

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

    7: IBM Lotus Notes Mail Client Lets Remote Users Execute Java Applets V-147: IBM Lotus Notes Mail Client Lets Remote Users Execute Java Applets May 2, 2013 - 6:00am Addthis...

  6. PVMRW2013 Discussion notes. Tues. Feb. 26, 5:30 | Department of Energy

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

    notes. Tues. Feb. 26, 5:30 PVMRW2013 Discussion notes. Tues. Feb. 26, 5:30 We do see some bad diodes going into the field... discussionnotes_tues_530.pdf (93.95 KB) More Documents & Publications PVMRW2013 Discussion notes: Tues. Feb. 26: 10:45 PVMRW2013 Discussion notes Tues. Feb. 26 2013, 2:30 US & Japan TG 4 Activities of QA Forum

  7. PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes: | Department of Energy

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

    0:00 Discussion notes: PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes: We hear that the dampl heat test causes failures that are not representative of field failure... discussionnotes_weds_1000.pdf (103.24 KB) More Documents & Publications PVMRW2013 Discussion notes: Tues. Feb. 26: 10:45 PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes PVMRW2013 Wed., Feb. 27, 3:00 Final Discussion

  8. Geochemical Implications of CO2 Leakage Associated with Geologic Storage: A Review

    SciTech Connect (OSTI)

    Harvey, Omar R.; Qafoku, Nikolla; Cantrell, Kirk J.; Brown, Christopher F.

    2012-07-09

    Leakage from deep storage reservoirs is a major risk factor associated with geologic sequestration of carbon dioxide (CO2). Different scientific theories exist concerning the potential implications of such leakage for near-surface environments. The authors of this report reviewed the current literature on how CO2 leakage (from storage reservoirs) would likely impact the geochemistry of near surface environments such as potable water aquifers and the vadose zone. Experimental and modeling studies highlighted the potential for both beneficial (e.g., CO2 re sequestration or contaminant immobilization) and deleterious (e.g., contaminant mobilization) consequences of CO2 intrusion in these systems. Current knowledge gaps, including the role of CO2-induced changes in redox conditions, the influence of CO2 influx rate, gas composition, organic matter content and microorganisms are discussed in terms of their potential influence on pertinent geochemical processes and the potential for beneficial or deleterious outcomes. Geochemical modeling was used to systematically highlight why closing these knowledge gaps are pivotal. A framework for studying and assessing consequences associated with each factor is also presented in Section 5.6.

  9. Geochemical and geologic factors effecting the formulation of gas hydrate: Task No. 5, Final report

    SciTech Connect (OSTI)

    Kvenvolden, K.A.; Claypool, G.E.

    1988-01-01

    The main objective of our work has been to determine the primary geochemical and geological factors controlling gas hydrate information and occurrence and particularly in the factors responsible for the generation and accumulation of methane in oceanic gas hydrates. In order to understand the interrelation of geochemical/geological factors controlling gas hydrate occurrence, we have undertaken a multicomponent program which has included (1) comparison of available information at sites where gas hydrates have been observed through drilling by the Deep Sea Drilling Project (DSDP) on the Blake Outer Ridge and Middle America Trench; (2) regional synthesis of information related to gas hydrate occurrences of the Middle America Trench; (3) development of a model for the occurrence of a massive gas hydrate as DSDP Site 570; (4) a global synthesis of gas hydrate occurrences; and (5) development of a predictive model for gas hydrate occurrence in oceanic sediment. The first three components of this program were treated as part of a 1985 Department of Energy Peer Review. The present report considers the last two components and presents information on the worldwide occurrence of gas hydrates with particular emphasis on the Circum-Pacific and Arctic basins. A model is developed to account for the occurrence of oceanic gas hydrates in which the source of the methane is from microbial processes. 101 refs., 17 figs., 6 tabs.

  10. PVMRW2013 Discussion notes Tues. Feb. 26 2013, 2:30 | Department of Energy

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

    notes Tues. Feb. 26 2013, 2:30 PVMRW2013 Discussion notes Tues. Feb. 26 2013, 2:30 Some participants felt that modules should not be walked on... discussionnotes_tues_230.pdf (103.99 KB) More Documents & Publications PVMRW2013 Discussion notes: Tues. Feb. 26: 10:45

  11. PVMRW2013 Discussion notes: Tues. Feb. 26: 10:45 | Department of Energy

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

    notes: Tues. Feb. 26: 10:45 PVMRW2013 Discussion notes: Tues. Feb. 26: 10:45 If the mechanical properties of the parts of the module... discussionnotes_tues_1045.pdf (109.89 KB) More Documents & Publications PVMRW2013 Discussion notes Tues. Feb. 26 2013, 2:30

  12. V-211: IBM iNotes Multiple Vulnerabilities | Department of Energy

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

    1: IBM iNotes Multiple Vulnerabilities V-211: IBM iNotes Multiple Vulnerabilities August 5, 2013 - 6:00am Addthis PROBLEM: Multiple vulnerabilities have been reported in IBM Lotus iNotes PLATFORM: IBM iNotes 9.x ABSTRACT: IBM iNotes has two cross-site scripting vulnerabilities and an ActiveX Integer overflow vulnerability REFERENCE LINKS: Secunia Advisory SA54436 IBM Security Bulletin 1645503 CVE-2013-3027 CVE-2013-3032 CVE-2013-3990 IMPACT ASSESSMENT: High DISCUSSION: 1) Certain input related

  13. V-229: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site Scripting

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

    Attacks | Department of Energy 9: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site Scripting Attacks V-229: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site Scripting Attacks August 28, 2013 - 6:00am Addthis PROBLEM: Several vulnerabilities were reported in IBM Lotus iNotes PLATFORM: IBM Lotus iNotes 8.5.x ABSTRACT: IBM Lotus iNotes 8.5.x contains four cross-site scripting vulnerabilities REFERENCE LINKS: Security Tracker Alert ID 1028954 IBM Security Bulletin 1647740

  14. Workshop on hydrologic and geochemical monitoring in the Long Valley Caldera: proceedings

    SciTech Connect (OSTI)

    Sorey, M.L.; Farrar, C.D.; Wollenberg, H.A.

    1984-10-01

    A workshop reviewed the results of hydrologic and geochemical monitoring in the Long Valley caldera. Such monitoring is being done to detect changes in the hydrothermal system induced by ongoing magmatic and tectonic processes. Workshop participants discussed the need to instrument sites for continuous measurements of several parameters and to obtain additional hydrologic and chemical information from intermediate and deep drill holes. In addition to seismic and deformation monitoring, programs are currently in progress to monitor changes in the discharge characteristics of hot springs, fumaroles, and soil gases, as well as pressures and temperatures in wells. Some hydrochemical parameters are measured continuously, others are measured monthly or at longer intervals. This report summarizes the information presented at the hydrologic monitoring workshop, following the workshop agenda which was divided into four sessions: (1) overview of the hydrothermal system; (2) monitoring springs, fumaroles, and wells; (3) monitoring gas emissions; and (4) conclusions and recommendations.

  15. Interface Induced Carbonate Mineralization: A Fundamental Geochemical Process Relevant to Carbon Sequestration

    SciTech Connect (OSTI)

    Teng, H. Henry; Xu, Huifang

    2013-07-17

    We have approached the long-standing geochemical question why anhydrous high-Mg carbonate minerals (i.e., magnesite and dolomite) cannot be formed at ambient conditions from a new perspective by exploring the formation of MgCO{sub 3} and Mg{sub x}Ca{sub (1-x)}CO{sub 3} in non-aqueous solutions. Data collected from our experiments in this funding period suggest that a fundamental barrier, other than cation hydration, exists that prevents Mg{sup 2+} and CO{sub 3}{sup 2-} ions from forming long-range ordered structures. We propose that this barrier mainly stems from the lattice limitation on the spatial configuration of CO{sub 3} groups in magnesite crystals. On the other hand, the measured higher distribution coefficients of Mg between magnesian calcites formed in the absence and presence of water give us a first direct proof to support and quantify the cation hydration effect.

  16. Geological, geochemical, and geophysical survey of the geothermal resources at Hot Springs Bay Valley, Akutan Island, Alaska

    SciTech Connect (OSTI)

    Motyka, R.J.; Wescott, E.M.; Turner, D.L.; Swanson, S.E.; Romick, J.D.; Moorman, M.A.; Poreda, R.J.; Witte, W.; Petzinger, B.; Allely, R.D.

    1985-01-01

    An extensive survey was conducted of the geothermal resource potential of Hot Springs Bay Valley on Akutan Island. A topographic base map was constructed, geologic mapping, geophysical and geochemical surveys were conducted, and the thermal waters and fumarolic gases were analyzed for major and minor element species and stable isotope composition. (ACR)

  17. Evaluating oil quality and monitoring production from heavy oil reservoirs using geochemical methods: Application to the Boscan Field, Venezuela

    SciTech Connect (OSTI)

    Kaufman, R.L.; Noguera, V.H.; Bantz, D.M.; Rodriguez, R.

    1996-08-01

    Many oil fields worldwide contain heavy oil in one or more reservoir units. The low gravity of these oils is most frequently due to biodegradation and/or low maturity. The challenge is to find ways to economically recover this oil. Methods which reduce the operating costs of producing heavy oil add significant value to such projects. Geochemical techniques which use the composition of the reservoir fluids as natural tracers offer cost effective methods to assist with reservoir management. The low viscosity and gravity of heavy oil, combined with frequent high water cuts, low flow rates, and the presence of downhole artificial lift equipment, make many conventional production logging methods difficult to apply. Therefore, monitoring production, especially if the produced oil is commingled from multiple reservoirs, can be difficult. Geochemical methods can be used to identify oil/water contacts, tubing string leaks and to allocate production to individual zones from commingled production. An example of a giant heavy oil field where geochemical methods may be applicable is the Boscan Field in Venezuela. Low maturity oil, averaging 10{degrees} API gravity, is produced from the Eocene Upper and Lower Boscan (Miosa) Sands. Geochemical, stratigraphic and engineering data have helped to better define the controls on oil quality within the field, identified new reservoir compartments and defined unique characteristics of the Upper and Lower Boscan oils. This information can be used to identify existing wells in need of workovers due to mechanical problems and to monitor production from new infill wells.

  18. Geochemical and physical properties of wetland soils at the Savannah River site

    SciTech Connect (OSTI)

    Dixon, K.L; Rogers, V.A.; Conner, S.P.; Cummings, C.L.; Gladden, J.B.; Weber, J.M.

    1996-05-01

    The Savannah River Site (SRS), located in Aiken, Allendale, and Barnwell Counties, South Carolina, is a nuclear production facility operated for the U.S. Department of Energy (DOE) by Westinghouse Savannah River Company (WSRC). To facilitate future human health and ecological risk assessments, treatability studies, remedial investigations, and feasibility studies for its wetland areas, SRS needs a database of background geochemical and physical properties of wetland soils. These data are needed for comparison to data collected from wetland soils that may have been affected by SRS operations. SRS contains 36,000 acres of wetlands and an additional 5,000 acres of bottom land soils subject to flooding. Recent studies of wetland soils near various waste units at SRS show that some wetlands have been impacted by releases of contaminants resulting from SRS operations (WSRC, 1992). Waste waters originating from the operations facilities typically have been discharged into seepage basins located in upland soils, direct discharge of waste water to wetland areas has been minimal. This suggests that impacted wetland areas have been affected indirectly as a result of transport mechanisms such as surface runoff, groundwater seeps, fluvial or sediment transport, and leaching. Looney et al. (1990) conducted a study to characterize the geochemical and physical properties of upland soils and shallow sediments on the SRS. A primary objective of the upland study was to collect the data needed to assess the qualitative and quantitative impacts of SRS operations on the environment. By comparing the upland soils data to data collected from waste units located in similar soils, SRS impacts could be assessed. The data were also intended to aid in selection of remediation alternatives. Because waste units at SRS have historically been located in upland areas, wetland soils were not sampled. (Abstract Truncated)

  19. Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to Unconfined and Confined Aquifers

    SciTech Connect (OSTI)

    Qafoku, Nikolla; Brown, Christopher F.; Wang, Guohui; Sullivan, E. C.; Lawter, Amanda R.; Harvey, Omar R.; Bowden, Mark

    2013-04-15

    Experimental research work has been conducted and is undergoing at Pacific Northwest National Laboratory (PNNL) to address a variety of scientific issues related with the potential leaks of the carbon dioxide (CO2) gas from deep storage reservoirs. The main objectives of this work are as follows: • Develop a systematic understanding of how CO2 leakage is likely to influence pertinent geochemical processes (e.g., dissolution/precipitation, sorption/desorption and redox reactions) in the aquifer sediments. • Identify prevailing environmental conditions that would dictate one geochemical outcome over another. • Gather useful information to support site selection, risk assessment, policy-making, and public education efforts associated with geological carbon sequestration. In this report, we present results from experiments conducted at PNNL to address research issues related to the main objectives of this effort. A series of batch and column experiments and solid phase characterization studies (quantitative x-ray diffraction and wet chemical extractions with a concentrated acid) were conducted with representative rocks and sediments from an unconfined, oxidizing carbonate aquifer, i.e., Edwards aquifer in Texas, and a confined aquifer, i.e., the High Plains aquifer in Kansas. These materials were exposed to a CO2 gas stream simulating CO2 gas leaking scenarios, and changes in aqueous phase pH and chemical composition were measured in liquid and effluent samples collected at pre-determined experimental times. Additional research to be conducted during the current fiscal year will further validate these results and will address other important remaining issues. Results from these experimental efforts will provide valuable insights for the development of site-specific, generation III reduced order models. In addition, results will initially serve as input parameters during model calibration runs and, ultimately, will be used to test model predictive capability and

  20. PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes | Department of Energy

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

    1:45 Discussion notes PVMRW2013 Wed., Feb. 27, 1:45 Discussion notes It could be useful to mix UVA and UVB and test the effects of both at the same time... discussionnotes_weds_145.pdf (118.88 KB) More Documents & Publications PVMRW2013 Wed., Feb. 27, 10:00 Discussion notes: PVMRW2013 Wed., Feb. 27, 3:00 Final Discussion

  1. CEM_Metrics_and_Technical_Note_7_14_10.pdf | Department of Energy

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

    CEM_Metrics_and_Technical_Note_7_14_10.pdf CEM_Metrics_and_Technical_Note_7_14_10.pdf (129.47 KB) More Documents & Publications SEAD-Fact-Sheet.pdf Schematics of a heat pump clothes dryer<br /> Credit: Oak Ridge National Lab Heat Pump Clothes Dryer CEM_Metrics_and_Technical_Note_7_14_10.pdf Wind Vision: A New Era for Wind Power in the United States

  2. The structure of the cyanobactin domain of unknown function from PatG in the patellamide gene cluster

    SciTech Connect (OSTI)

    Mann, Greg; Koehnke, Jesko; Bent, Andrew F.; Graham, Rachael; Houssen, Wael; Jaspars, Marcel; Schwarz-Linek, Uli; Naismith, James H.

    2014-11-14

    The highly conserved domain of unknown function in the cyanobactin superfamily has a novel fold. The protein does not appear to bind the most plausible substrates, leaving questions as to its role. Patellamides are members of the cyanobactin family of ribosomally synthesized and post-translationally modified cyclic peptide natural products, many of which, including some patellamides, are biologically active. A detailed mechanistic understanding of the biosynthetic pathway would enable the construction of a biotechnological toolkit to make novel analogues of patellamides that are not found in nature. All but two of the protein domains involved in patellamide biosynthesis have been characterized. The two domains of unknown function (DUFs) are homologous to each other and are found at the C-termini of the multi-domain proteins PatA and PatG. The domain sequence is found in all cyanobactin-biosynthetic pathways characterized to date, implying a functional role in cyanobactin biosynthesis. Here, the crystal structure of the PatG DUF domain is reported and its binding interactions with plausible substrates are investigated.

  3. Merging high resolution geophysical and geochemical surveys to reduce exploration risk at glass buttes, Oregon

    SciTech Connect (OSTI)

    Walsh, Patrick; Fercho, Steven; Perkin, Doug; Martini, Brigette; Boshmann, Darrick

    2015-06-01

    The engineering and studies phase of the Glass Buttes project was aimed at reducing risk during the early stages of geothermal project development. The project’s inclusion of high resolution geophysical and geochemical surveys allowed Ormat to evaluate the value of these surveys both independently and in combination to quantify the most valuable course of action for exploration in an area where structure, permeability, and temperature are the most pressing questions. The sizes of the thermal anomalies at Glass Buttes are unusually large. Over the course of Phase I Ormat acquired high resolution LIDAR data to accurately map fault manifestations at the surface and collected detailed gravity and aeromagnetic surveys to map subsurface structural features. In addition, Ormat collected airborne hyperspectral data to assist with mapping the rock petrology and mineral alteration assemblages along Glass Buttes faults and magnetotelluric (MT) survey to try to better constrain the structures at depth. Direct and indirect identification of alteration assemblages reveal not only the geochemical character and temperature of the causative hydrothermal fluids but can also constrain areas of upflow along specific fault segments. All five datasets were merged along with subsurface lithologies and temperatures to predict the most likely locations for high permeability and hot fluids. The Glass Buttes temperature anomalies include 2 areas, totaling 60 km2 (23 mi2) of measured temperature gradients over 165° C/km (10° F/100ft). The Midnight Point temperature anomaly includes the Strat-1 well with 90°C (194 °F) at 603 m (1981 ft) with a 164 °C/km (10°F/100ft) temperature gradient at bottom hole and the GB-18 well with 71°C (160 °F) at 396 m (1300 ft) with a 182°C/km (11°F/100ft) gradient. The primary area of alteration and elevated temperature occurs near major fault intersections associated with Brothers Fault Zone and Basin and Range systems. Evidence for faulting is

  4. Up-Scaling Geochemical Reaction Rates for Carbon Dioxide (CO2) in Deep Saline Aquifers

    SciTech Connect (OSTI)

    Peters, Catherine A

    2013-02-28

    Geochemical reactions in deep subsurface environments are complicated by the consolidated nature and mineralogical complexity of sedimentary rocks. Understanding the kinetics of these reactions is critical to our ability to make long-term predictions about subsurface processes such as pH buffering, alteration in rock structure, permeability changes, and formation of secondary precipitates. In this project, we used a combination of experiments and numerical simulation to bridge the gap between our knowledge of these reactions at the lab scale and rates that are meaningful for modeling reactive transport at core scales. The focus is on acid-driven mineral dissolution, which is specifically relevant in the context of CO2-water-rock interactions in geological sequestration of carbon dioxide. The project led to major findings in three areas. First, we modeled reactive transport in pore-network systems to investigate scaling effects in geochemical reaction rates. We found significant scaling effects when CO2 concentrations are high and reaction rates are fast. These findings indicate that the increased acidity associated with geological sequestration can generate conditions for which proper scaling tools are yet to be developed. Second, we used mathematical modeling to investigate the extent to which SO2, if co-injected with CO2, would acidify formation brines. We found that there exist realistic conditions in which the impact on brine acidity will be limited due to diffusion rate-limited SO2 dissolution from the CO2 phase, and the subsequent pH shift may also be limited by the lack of availability of oxidants to produce sulfuric acid. Third, for three Viking sandstones (Alberta sedimentary basin, Canada), we employed backscattered electron microscopy and energy dispersive X-ray spectroscopy to statistically characterize mineral contact with pore space. We determined that for reactive minerals in sedimentary consolidated rocks, abundance alone is not a good predictor of

  5. Novel Imaging Techniques, Integrated with Mineralogical, Geochemical and Microbiological Characterization to Determine the Biogeochemical Controls....

    SciTech Connect (OSTI)

    Lloyd, Jonathan R.

    2005-06-01

    conditions on the stability/solubility of Fe(II) and Tc(IV), found 80 % resolubilization of the Tc. Column experiments exploring this behavior are being planned. HYPOTHESIS 4 The mobility of 99mTc in the sediment columns can be modeled using a coupled speciation and transport code. Microbiological and geochemical characterization of the column experiments is ongoing and transport and geochemical modeling experiments are being planned.

  6. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

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

    Bacon, Diana H.; Dai, Zhenxue; Zheng, Liange

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2more » leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.« less

  7. Improved Geothermometry Through Multivariate Reaction-path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators: Final Report

    SciTech Connect (OSTI)

    Mattson, Earl; Smith, Robert; Fujita, Yoshiko; McLing, Travis; Neupane, Ghanashyam; Palmer, Carl; Reed, David; Thompson, Vicki

    2015-03-01

    The project was aimed at demonstrating that the geothermometric predictions can be improved through the application of multi-element reaction path modeling that accounts for lithologic and tectonic settings, while also accounting for biological influences on geochemical temperature indicators. The limited utilization of chemical signatures by individual traditional geothermometer in the development of reservoir temperature estimates may have been constraining their reliability for evaluation of potential geothermal resources. This project, however, was intended to build a geothermometry tool which can integrate multi-component reaction path modeling with process-optimization capability that can be applied to dilute, low-temperature water samples to consistently predict reservoir temperature within ±30 °C. The project was also intended to evaluate the extent to which microbiological processes can modulate the geochemical signals in some thermal waters and influence the geothermometric predictions.

  8. GaMin’11 – an international inter-laboratory comparison for geochemical CO₂ - saline fluid - mineral interaction experiments

    SciTech Connect (OSTI)

    Ostertag-Henning, C.; Risse, A.; Thomas, B.; Rosenbauer, R.; Rochelle, C.; Purser, G.; Kilpatrick, A.; Rosenqvist, J.; Yardley, B.; Karamalidis, A.; Griffith, C.; Hedges, S.; Dilmore, R.; Goodman, A.; Black, J.; Haese, R.; Deusner, C.; Bigalke, N.; Haeckel, M.; Fischer, S.; Liebscher, A.; Icenhower, J. P.; Daval, D.; Saldi, G. D.; Knauss, K. G.; Schmidt, M.; Mito, S.; Sorai, M.; Truche, L.

    2014-12-31

    Due to the strong interest in geochemical CO₂-fluid-rock interaction in the context of geological storage of CO₂ a growing number of research groups have used a variety of different experimental ways to identify important geochemical dissolution or precipitation reactions and – if possible – quantify the rates and extent of mineral or rock alteration. In this inter-laboratory comparison the gas-fluid-mineral reactions of three samples of rock-forming minerals have been investigated by 11 experimental labs. The reported results point to robust identification of the major processes in the experiments by most groups. The dissolution rates derived from the changes in composition of the aqueous phase are consistent overall, but the variation could be reduced by using similar corrections for changing parameters in the reaction cells over time. The comparison of experimental setups and procedures as well as of data corrections identified potential improvements for future gas-fluid-rock studies.

  9. Preburn versus postburn mineralogical and geochemical characteristics of overburden and coal at the Hanna, Wyoming underground coal gasification site

    SciTech Connect (OSTI)

    Oliver, R.L.; Youngberg, A.D.

    1983-12-01

    Hundreds of mineralogic and geochemical tests were done under US Department of Energy contracts on core samples taken from the Hanna underground coal gasification site. These tests included x-ray diffraction studies of minerals in coal ash, overburden rocks, and heat-altered rocks; x-ray fluorescence analyses of oxides in coal ash and heat-altered rocks; semi-quantitative spectrographic analyses of elements in coal, overburden, and heat-altered rocks; chemical analyses of elements and compounds in coal, overburden, and heat-altered rocks and ASTM proximate and ultimate analyses of coal and heat-altered coal. These data sets were grouped, averaged, and analyzed to provide preburn and postburn mineralogic and geochemical characteristics of rock units at the site. Where possible, the changes in characteristics from the preburn to the postburn state are related to underground coal gasification processes. 11 references, 13 figures, 8 tables.

  10. Comparison of microbial and sorbed soil gas surgace geochemical techniques with seismic surveys from the Southern Altiplano, Bolivia

    SciTech Connect (OSTI)

    Aranibar, O.R.; Tucker, J.D.; Hiltzman, D.C.

    1995-12-31

    Yacimientos Petroliferos Fiscales Bolivianos (YPFB) undertook a large seismic evaluation in the southern Altiplano, Bolivia in 1994. As an additional layer of information, sorbed soil gas and Microbial Oil Survey Technique (MOST) geochemical surveys were conducted to evaluate the hydrocarbon microseepage potential. The Wara Sara Prospect had 387 sorbed soil gas samples, collected from one meter depth, and 539 shallow soil microbial samples, collected from 15 to 20 centimeter depth. The sorbed soil gas samples were collected every 500 meters and microbial samples every 250 meters along geochemical traverses spaced 1 km apart. The presence of anmalous hydrocarbon microseepage is indicated by (1) a single hydrocarbon source identified by gas crossplots, (2) the high gas values with a broad range, (3) the high overall gas average, (4) the clusters of elevated samples, and (5) the right hand skewed data distributions.

  11. Geochemical information for sites contaminated with low-level radioactive wastes: I. Niagara Falls Storage Site

    SciTech Connect (OSTI)

    Seeley, F.G.; Kelmers, A.D.

    1984-11-01

    The Niagara Falls Storage Site (NFSS) became radioactively contaminated as a result of wastes that were being stored from operations carried out to recover uranium from pitchblende ore in the 1940s and 1950s. The US Department of Energy (DOE) is considering various remedial action options for the NFSS. This report describes the results of geochemical investigations performed to help provide a quantitative evaluation of the effects of various options. NFSS soil and groundwater samples were characterized; and uranium and radium sorption ratios, as well as apparent concentration limit values, were measured in site soil/groundwater systems by employing batch contact methodology. The results suggest that any uranium which is in solution in the groundwater at the NFSS may be poorly retarded due to the low uranium sorption ratio values and high solubility measured. Further, appreciable concentrations of uranium in groundwater could be attained from soluble wastes. Release of uranium via groundwater migration could be a significant release pathway. Solubilized radium would be expected to be effectively retarded by soil at the NFSS as a result of the very high radium sorption ratios observed. The addition of iron oxyhydroxide to NFSS soils resulted in much higher uranium sorption ratios. Additional field testing of this potential remedial action additive could be desirable. 10 references.

  12. Unearthing the Antibacterial Mechanism of Medicinal Clay: A Geochemical Approach to Combating Antibiotic Resistance

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

    Morrison, Keith D.; Misra, Rajeev; Williams, Lynda B.

    2016-01-08

    Natural antibacterial clays, when hydrated and applied topically, kill human pathogens including antibiotic resistant strains proliferating worldwide. Only certain clays are bactericidal; those containing soluble reduced metals and expandable clay minerals that absorb cations, providing a capacity for extended metal release and production of toxic hydroxyl radicals. Here we show the critical antibacterial components are soluble Fe2+ and Al3+ that synergistically attack multiple cellular systems in pathogens normally growth-limited by Fe supply. This geochemical process is more effective than metal solutions alone and provides an alternative antibacterial strategy to traditional antibiotics. Advanced bioimaging methods and genetic show that Al3+ misfoldsmore » cell membrane proteins, while Fe2+ evokes membrane oxidation and enters the cytoplasm inflicting hydroxyl radical attack on intracellular proteins and DNA. The lethal reaction precipitates Fe3+-oxides as biomolecular damage proceeds. In conclusion, discovery of this bactericidal mechanism demonstrated by natural clays should guide designs of new mineral-based antibacterial agents.« less

  13. Geochemical characteristics of oils from New Zealand, Papua New Guinea and Taiwan

    SciTech Connect (OSTI)

    Jung-Nan, Oung; Philp, P.R. )

    1990-05-01

    Oils from a number of convergent margin settings of the Pacific and Philippine plates have been characterized by geochemical techniques including gas chromatography-mass spectrometry and carbon isotopic analysis. The oils, collected from New Zealand, New Guinea, and Taiwan, are described in terms of their biomarker compositions, and these distributions are used to evaluate the nature of the source material responsible for the oils. For the most part these oils are of Tertiary age and the source materials were derived predominantly from higher plants. The authors describe the effects of a convergent margin on the relative maturity of the oils as reflected by their biomarker distributions. In other words, do any of the oils from these regions have anomalous maturity values that can be attributed to additional heating resulting from plate movement in the area. The results will also be compared with oils from similar source materials but not in convergent margin settings (for example, the Gippsland basin, Australia) to further evaluate the effects of the convergent margin setting on the biomarker distributions.

  14. Geochemical and physical properties of soils and shallow sediments at the Savannah River Site

    SciTech Connect (OSTI)

    Looney, B.B.; Eddy, C.A.; Ramdeen, M.; Pickett, J. ); Rogers, V. . Savannah River Site Savannah River Lab., Aiken, SC ); Scott, M.T.; Shirley, P.A. )

    1990-08-31

    A program to characterize the geochemical and physical properties of the unimpacted soils and shallow sediments at the Savannah River Site (SRS) has been completed. The maximum, minimum, median, standard deviation, and mean values for metals, radionuclides, inorganic anions, organic compounds, and agricultural indicator parameters are summarized for six soil series that were identified as representative of the 29 soil series at SRS. The soils from unimpacted areas of SRS are typical of soils found in moderately aggressive weathering environments, including the southeastern United States. Appendix 8 organic compounds were detected in all samples. Since these constituents are not generally present in soil, this portion of the investigation was intended to assess possible laboratory artifacts. An additional objective of the SRS Soil Study was to determine if the composition of the split spoon sampler biased chemical analysis of the soils. Twenty-five duplicate samples were analyzed for a number of metals, radiological and agricultural parameters, and organics by two laboratories currently contracted with to analyze samples during waste site characterization. In all cases, the absolute values of the average differences are relatively small compared to the overall variability in the population. 31 refs., 14 figs., 48 tabs.

  15. The low temperature hydrothermal system of Campiglia, Tuscany (Italy); A geochemical approach

    SciTech Connect (OSTI)

    Celati, R.; Grassi, S.; D'Amore, F.; Marcolini, L. )

    1991-01-01

    This paper reports on the Campiglia hydrothermal system which is a low temperature hydrothermal system located in southwestern Tuscany, a region of Italy characterized by intense geothermal activity and by the presence of high temperature exploited geothermal reservoirs. Six water-points, with temperatures ranging between 20 and 47{degrees} C and different chemical and isotopic compositions, are found close to the margins of outcrops of the main regional aquifer formation. Systematic hydrogeological, geochemical and isotopic observations and temperature measurements were carried out on the different springs and wells for a period of three years (1984-1986). Constant water characteristics with time were observed in four water-points; two wells had variable trends depending on mixing processes. A groundwater circulation model characterized by flowpaths of different length and depth is suggested by the variety of chemical and isotopic characteristics and is consistent with geothermometry, which indicates temperatures up to 25{degrees} C higher than those measured at the spring emergencies. An important water supply to the system comes from local recharge, although regional circulation may also be present, particularly in the eastern part of the investigated area.

  16. Improved Dosimetric and Clinical Outcomes With Intensity-Modulated Radiotherapy for Head-and-Neck Cancer of Unknown Primary Origin

    SciTech Connect (OSTI)

    Chen, Allen M.; Li Baoqing; Farwell, D. Gregory; Marsano, Joseph; Vijayakumar, Srinivasan; Purdy, James A.

    2011-03-01

    Purpose: To compare differences in dosimetric, clinical, and quality-of-life endpoints among a cohort of patients treated by intensity-modulated radiotherapy (IMRT) and conventional radiotherapy (CRT) for head-and-neck cancer of unknown primary origin. Methods and Materials: The medical records of 51 patients treated by radiation therapy for squamous cell carcinoma of the head and neck presenting as cervical lymph node metastasis of occult primary origin were reviewed. Twenty-four patients (47%) were treated using CRT, and 27 (53%) were treated using IMRT. The proportions of patients receiving concurrent chemotherapy were 54% and 63%, respectively. Results: The 2-year estimates of overall survival, local-regional control, and disease-specific survival for the entire patient population were 86%, 89%, and84%, respectively. There were no significant differences in any of these endpoints with respect to radiation therapy technique (p > 0.05 for all). Dosimetric analysis revealed that the use of IMRT resulted in significant improvements with respect to mean dose and V30 to the contralateral (spared) parotid gland. In addition, mean doses to the ipsilateral inner and middle ear structures were significantly reduced with IMRT (p < 0.05 for all). The incidence of severe xerostomia in the late setting was 58% and 11% among patients treated by CRT and IMRT, respectively (p < 0.001). The percentages of patients who were G-tube dependent at 6 months after treatment were 42% and 11%, respectively (p < 0.001). Conclusions: IMRT results in significant improvements in the therapeutic ratio among patients treated by radiation therapy for head-and-neck cancer of unknown primary origin.

  17. Microbial distributions detected by an oligonucleotide microarray across geochemical zones associated with methane in marine sediments from the Ulleung Basin

    SciTech Connect (OSTI)

    Briggs, Brandon R.; Graw, Michael; Brodie, Eoin L.; Bahk, Jang-Jun; Kim, Sung-Han; Hyun, Jung-Ho; Kim, Ji-Hoon; Torres, Marta; Colwell, Frederick S.

    2013-11-01

    The biogeochemical processes that occur in marine sediments on continental margins are complex; however, from one perspective they can be considered with respect to three geochemical zones based on the presence and form of methane: sulfatemethane transition (SMTZ), gas hydrate stability zone (GHSZ), and free gas zone (FGZ). These geochemical zones may harbor distinct microbial communities that are important in biogeochemical carbon cycles. The objective of this study was to describe the microbial communities in sediments from the SMTZ, GHSZ, and FGZ using molecular ecology methods (i.e. PhyloChip microarray analysis and terminal restriction fragment length polymorphism (T-RFLP)) and examining the results in the context of non-biological parameters in the sediments. Non-metric multidimensional scaling and multi-response permutation procedures were used to determine whether microbial community compositions were significantly different in the three geochemical zones and to correlate samples with abiotic characteristics of the sediments. This analysis indicated that microbial communities from all three zones were distinct from one another and that variables such as sulfate concentration, hydrate saturation of the nearest gas hydrate layer, and depth (or unmeasured variables associated with depth e.g. temperature, pressure) were correlated to differences between the three zones. The archaeal anaerobic methanotrophs typically attributed to performing anaerobic oxidation of methane were not detected in the SMTZ; however, the marine benthic group-B, which is often found in SMTZ, was detected. Within the GHSZ, samples that were typically closer to layers that contained higher hydrate saturation had indicator sequences related to Vibrio-type taxa. These results suggest that the biogeographic patterns of microbial communities in marine sediments are distinct based on geochemical zones defined by methane.

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

    SciTech Connect (OSTI)

    Pilger, R.H. Jr.

    1985-01-01

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

  19. EnPI V4.0 Release Notes and Known Issues | Department of Energy

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

    notes and known issues for the Energy Performance Indicator (EnPI) Tool v4.0. EnPI Release Notes and Known Issues (101.66 KB) More Documents & Publications EnPI V4.0 User Manual

  20. Geochemical Data Package for the 2005 Hanford Integrated Disposal Facility Performance Assessment

    SciTech Connect (OSTI)

    Krupka, Kenneth M.; Serne, R JEFFREY.; Kaplan, D I.

    2004-09-30

    CH2M HILL Hanford Group, Inc. (CH2M HILL) is designing and assessing the performance of an integrated disposal facility (IDF) to receive low-level waste (LLW), mixed low-level waste (MLLW), immobilized low-activity waste (ILAW), and failed or decommissioned melters. The CH2M HILL project to assess the performance of this disposal facility is the Hanford IDF Performance Assessment (PA) activity. The goal of the Hanford IDF PA activity is to provide a reasonable expectation that the disposal of the waste is protective of the general public, groundwater resources, air resources, surface-water resources, and inadvertent intruders. Achieving this goal will require prediction of contaminant migration from the facilities. This migration is expected to occur primarily via the movement of water through the facilities, and the consequent transport of dissolved contaminants in the vadose zone to groundwater where contaminants may be re-introduced to receptors via drinking water wells or mixing in the Columbia River. Pacific Northwest National Laboratory (PNNL) assists CH2M HILL in their performance assessment activities. One of the PNNL tasks is to provide estimates of the geochemical properties of the materials comprising the IDF, the disturbed region around the facility, and the physically undisturbed sediments below the facility (including the vadose zone sediments and the aquifer sediments in the upper unconfined aquifer). The geochemical properties are expressed as parameters that quantify the adsorption of contaminants and the solubility constraints that might apply for those contaminants that may exceed solubility constraints. The common parameters used to quantify adsorption and solubility are the distribution coefficient (Kd) and the thermodynamic solubility product (Ksp), respectively. In this data package, we approximate the solubility of contaminants using a more simplified construct, called the solution concentration limit, a constant value. The Kd values and

  1. Geochemical engineering design tools for uranium in situ recovery : the HYDROGEOCHEM codes.

    SciTech Connect (OSTI)

    Siegel, Malcolm Dean; Li, Ming-Hsu; Yeh, Gour-Tsyh

    2010-11-01

    Geochemical Engineering Design (GED) is based on applications of the principles and various computer models that describe the biogeochemistry and physics of removal of contaminants from water by adsorption, precipitation and filtration. It can be used to optimize or evaluate the efficiency of all phases of in situ recovery (ISR). The primary tools of GED are reactive transport models; this talk describes the potential application of the HYDROGEOCHEM family of codes to ISR. The codes can describe a complete suite of equilibrium or kinetic aqueous complexation, adsorption-desorption, precipitation-dissolution, redox, and acid-base reactions in variably saturated media with density-dependent fluid flow. Applications to ISR are illustrated with simulations of (1) the effectiveness of a reactive barrier to prevent off-site uranium migration and (2) evaluation of the effect of sorption hysteresis on natural attenuation. In the first example, it can be seen that the apparent effectiveness of the barrier depends on monitoring location and that it changes over time. This is due to changes in pH, saturation of sorption sites, as well as the geometry of the flow field. The second simulation shows how sorption hysteresis leads to observable attenuation of a uranium contamination plume. Different sorption mechanisms including fast (or reversible), slow, and irreversible sorption were simulated. The migration of the dissolved and total uranium plumes for the different cases are compared and the simulations show that when 50-100% of the sites have slow desorption rates, the center of mass of the dissolved uranium plume begins to move upstream. This would correspond to the case in which the plume boundaries begin to shrink as required for demonstration of natural attenuation.

  2. Model-Based Analysis of the Role of Biological, Hydrological and Geochemical Factors Affecting Uranium Bioremediation

    SciTech Connect (OSTI)

    Zhao, Jiao; Scheibe, Timothy D.; Mahadevan, Radhakrishnan

    2011-01-24

    Uranium contamination is a serious concern at several sites motivating the development of novel treatment strategies such as the Geobacter-mediated reductive immobilization of uranium. However, this bioremediation strategy has not yet been optimized for the sustained uranium removal. While several reactive-transport models have been developed to represent Geobacter-mediated bioremediation of uranium, these models often lack the detailed quantitative description of the microbial process (e.g., biomass build-up in both groundwater and sediments, electron transport system, etc.) and the interaction between biogeochemical and hydrological process. In this study, a novel multi-scale model was developed by integrating our recent model on electron capacitance of Geobacter (Zhao et al., 2010) with a comprehensive simulator of coupled fluid flow, hydrologic transport, heat transfer, and biogeochemical reactions. This mechanistic reactive-transport model accurately reproduces the experimental data for the bioremediation of uranium with acetate amendment. We subsequently performed global sensitivity analysis with the reactive-transport model in order to identify the main sources of prediction uncertainty caused by synergistic effects of biological, geochemical, and hydrological processes. The proposed approach successfully captured significant contributing factors across time and space, thereby improving the structure and parameterization of the comprehensive reactive-transport model. The global sensitivity analysis also provides a potentially useful tool to evaluate uranium bioremediation strategy. The simulations suggest that under difficult environments (e.g., highly contaminated with U(VI) at a high migration rate of solutes), the efficiency of uranium removal can be improved by adding Geobacter species to the contaminated site (bioaugmentation) in conjunction with the addition of electron donor (biostimulation). The simulations also highlight the interactive effect of

  3. Geochemical information for sites contaminated with low-level radioactive wastes. III. Weldon Spring Storage Site

    SciTech Connect (OSTI)

    Seeley, F.G.; Kelmers, A.D.

    1985-02-01

    The Weldon Spring Storage Site (WSSS), which includes both the chemical site and the quarry, became radioactively contaminated as the result of wastes that were being stored from operations to recover uranium from pitchblende ores in the 1940s and 1950s. The US Department of Energy (DOE) is considering various remedial action options for the WSSS. This report describes the results of geochemical investigations carried out at Oak Ridge National Laboratory (ORNL) to support these activities and to help quantify various remedial action options. Soil and groundwater samples were characterized, and uranium and radium sorption ratios were measured in site soil/groundwater systems by batch contact methodology. Soil samples from various locations around the raffinate pits were found to contain major amounts of silica, along with illite as the primary clay constituent. Particle sizes of the five soil samples were variable (50% distribution point ranging from 12 to 81 ..mu..m); the surface areas varied from 13 to 62 m/sup 2//g. Elemental analysis of the samples showed them to be typical of sandy clay and silty clay soils. Groundwater samples included solution from Pit 3 and well water from Well D. Anion analyses showed significant concentrations of sulfate and nitrate (>350 and >7000 mg/L, respectively) in the solution from Pit 3. These anions were also present in the well water, but in lower concentrations. Uranium sorption ratios for four of the soil samples contacted with the solution from Pit 3 were moderate to high (approx. 300 to approx. 1000 mL/g). The fifth sample had a ratio of only 12 mL/g. Radium sorption ratios for the five samples were moderate to high (approx. 600 to approx. 1000 mL/g). These values indicate that soil at the WSSS may show favorable retardation of uranium and radium in the groundwater. 13 references, 13 figures, 10 tables.

  4. Characterizing Microbial Community and Geochemical Dynamics at Hydrothermal Vents Using Osmotically Driven Continuous Fluid Samplers

    SciTech Connect (OSTI)

    Robidart, Julie C.; Callister, Stephen J.; Song, Peng F.; Nicora, Carrie D.; Wheat, Charles G.; Girguis, Peter R.

    2013-05-07

    microbial and geochemical phenomena.

  5. Scaling Effects of Cr(VI) Reduction Kinetics. The Role of Geochemical Heterogeneity

    SciTech Connect (OSTI)

    Wang, Li; Li, Li

    2015-10-22

    The natural subsurface is highly heterogeneous with minerals distributed in different spatial patterns. Fundamental understanding of how mineral spatial distribution patterns regulate sorption process is important for predicting the transport and fate of chemicals. Existing studies about the sorption was carried out in well-mixed batch reactors or uniformly packed columns, with few data available on the effects of spatial heterogeneities. As a result, there is a lack of data and understanding on how spatial heterogeneities control sorption processes. In this project, we aim to understand and develop modeling capabilities to predict the sorption of Cr(VI), an omnipresent contaminant in natural systems due to its natural occurrence and industrial utilization. We systematically examine the role of spatial patterns of illite, a common clay, in determining the extent of transport limitation and scaling effects associated with Cr(VI) sorption capacity and kinetics using column experiments and reactive transport modeling. Our results showed that the sorbed mass and rates can differ by an order of magnitude due to of the illite spatial heterogeneities and transport limitation. With constraints from data, we also developed the capabilities of modeling Cr(VI) in heterogeneous media. The developed model is then utilized to understand the general principles that govern the relationship between sorption and connectivity, a key measure of the spatial pattern characteristics. This correlation can be used to estimate Cr(VI) sorption characteristics in heterogeneous porous media. Insights gained here bridge gaps between laboratory and field application in hydrogeology and geochemical field, and advance predictive understanding of reactive transport processes in the natural heterogeneous subsurface. We believe that these findings will be of interest to a large number of environmental geochemists and engineers, hydrogeologists, and those interested in contaminant fate and transport

  6. Geochemical Evidence of the Seasonality, Affinity and Pigmenation of Solenopora jurassica

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

    Barden, Holly E.; Behnsen, Julia; Bergmann, Uwe; Leng, Melanie J.; Manning, Phillip L.; Withers, Philip J.; Wogelius, Roy A.; van Dongen, Bart E.; Silva, Lucas C. R.

    2015-09-14

    Solenopora jurassica is a fossil calcareous alga that functioned as an important reef-building organism during the Palaeozoic. It is of significant palaeobiological interest due to its distinctive but poorly understood pink and white banding. Though widely accepted as an alga there is still debate over its taxonomic affinity, with recent work arguing that it should be reclassified as a chaetetid sponge. The banding is thought to be seasonal, but there is no conclusive evidence for this. Other recent work has, however demonstrated the presence of a unique organic boron-containing pink/red pigment in the pink bands of S. jurassica. We presentmore » new geochemical evidence concerning the seasonality and pigmentation of S. jurassica. Seasonal growth cycles are demonstrated by X-ray radiography, which shows differences in calcite density, and by varying δ13C composition of the bands. Temperature variation in the bands is difficult to constrain accurately due to conflicting patterns arising from Mg/Ca molar ratios and δ18O data. Fluctuating chlorine levels indicate increased salinity in the white bands, when combined with the isotope data this suggests more suggestive of marine conditions during formation of the white band and a greater freshwater component (lower chlorinity) during pink band precipitation (δ18O). Increased photosynthesis is inferred within the pink bands in comparison to the white, based on δ13C. Pyrolysis Gas Chromatography Mass Spectrometry (Py-GCMS) and Fourier Transform Infrared Spectroscopy (FTIR) show the presence of tetramethyl pyrrole, protein moieties and carboxylic acid groups, suggestive of the presence of the red algal pigment phycoerythrin. This is consistent with the pink colour of S. jurassica. As phycoerythrin is only known to occur in algae and cyanobacteria, and no biomarker evidence of bacteria or sponges was detected we conclude S. jurassica is most likely an alga. Pigment analysis may be a reliable classification method for

  7. Coupled Geochemical Impacts of Leaking CO2 and Contaminants from Subsurface Storage Reservoirs on Groundwater Quality

    SciTech Connect (OSTI)

    Shao, Hongbo; Qafoku, Nikolla; Lawter, Amanda R.; Bowden, Mark E.; Brown, Christopher F.

    2015-07-07

    The leakage of CO2 and the concomitant saline solutions from deep storage reservoirs to overlying groundwater aquifers is considered one of the major potential risks associated with geologic CO2 sequestration (GCS). Batch and column experiments were conducted to determine the fate of trace metals in groundwater in the scenarios of CO2 and metal contaminated brine leakage. The sediments used in this work were collected from an unconsolidated sand and gravel aquifer in Kansas, and contained 0-4 wt% carbonates. Cd and As were spiked into the reaction system to represent potential contaminants from the reservoir brine that could intrude into groundwater aquifers with leaking CO2 at initial concentrations of 114 and 40 ppb, respectively. Through this research we demonstrated that Cd and As were adsorbed on the sediments, in spite of the lowered pH due to CO2 dissolution in the groundwater. Cd concentrations were well below its MCL in both batch and column studies, even for sediment samples without detectable carbonate to buffer the pH. Arsenic concentrations in the effluent were also significantly lower than influent concentration, suggesting that the sediments tested have the capacity to mitigate the coupled adverse effects of CO2 leakage and brine intrusion. However, the mitigation capacity of sediment is a function of its geochemical properties [e.g., the calcite content; the presence of adsorbed As(III); and the presence of P in the natural sediment]. The competitive adsorption between phosphate and arsenate may result in higher concentrations of As in the aqueous phase.

  8. Geochemical Evidence of the Seasonality, Affinity and Pigmenation of Solenopora jurassica

    SciTech Connect (OSTI)

    Barden, Holly E.; Behnsen, Julia; Bergmann, Uwe; Leng, Melanie J.; Manning, Phillip L.; Withers, Philip J.; Wogelius, Roy A.; van Dongen, Bart E.; Silva, Lucas C. R.

    2015-09-14

    Solenopora jurassica is a fossil calcareous alga that functioned as an important reef-building organism during the Palaeozoic. It is of significant palaeobiological interest due to its distinctive but poorly understood pink and white banding. Though widely accepted as an alga there is still debate over its taxonomic affinity, with recent work arguing that it should be reclassified as a chaetetid sponge. The banding is thought to be seasonal, but there is no conclusive evidence for this. Other recent work has, however demonstrated the presence of a unique organic boron-containing pink/red pigment in the pink bands of S. jurassica. We present new geochemical evidence concerning the seasonality and pigmentation of S. jurassica. Seasonal growth cycles are demonstrated by X-ray radiography, which shows differences in calcite density, and by varying δ13C composition of the bands. Temperature variation in the bands is difficult to constrain accurately due to conflicting patterns arising from Mg/Ca molar ratios and δ18O data. Fluctuating chlorine levels indicate increased salinity in the white bands, when combined with the isotope data this suggests more suggestive of marine conditions during formation of the white band and a greater freshwater component (lower chlorinity) during pink band precipitation (δ18O). Increased photosynthesis is inferred within the pink bands in comparison to the white, based on δ13C. Pyrolysis Gas Chromatography Mass Spectrometry (Py-GCMS) and Fourier Transform Infrared Spectroscopy (FTIR) show the presence of tetramethyl pyrrole, protein moieties and carboxylic acid groups, suggestive of the presence of the red algal pigment phycoerythrin. This is consistent with the pink colour of S. jurassica. As phycoerythrin is only known to occur in algae and cyanobacteria, and no biomarker evidence of bacteria or sponges was detected we conclude S. jurassica is most likely an alga. Pigment analysis may be a

  9. Calculation notes that support accident scenario and consequence determination of a waste tank criticality

    SciTech Connect (OSTI)

    Crowe, R.D., Westinghouse Hanford

    1996-08-02

    The purpose of this calculation note is to provide the basis forcriticality consequences for the Tank Farm Safety Analysis Report(FSAR). Criticality scenario is developed and details and description of the analysis methods are provided.

  10. Calculation notes that support accident scenario and consequence of the evaporator dump

    SciTech Connect (OSTI)

    Crowe, R.D., Westinghouse Hanford

    1996-09-09

    The purpose of this calculation note is to provide the basis for evaporator dump consequence for the Tank Farm Safety Analysis Report (FSAR). Evaporator Dump scenario is developed and details and description of the analysis methods are provided.

  11. Calculation notes that support accident scenario and consequence of the evaporator dump

    SciTech Connect (OSTI)

    Crowe, R.D.

    1996-09-27

    The purpose of this calculation note is to provide the basis for evaporator dump consequence for the Tank Farm Safety Analysis Report (FSAR). Evaporator Dump scenario is developed and details and description of the analysis methods are provided.

  12. Calculation notes that support accident scenario and consequence determination of a waste tank criticality

    SciTech Connect (OSTI)

    Crowe, R.D.

    1996-09-27

    The purpose of this calculation note is to provide the basis for criticality consequences for the Tank Farm Safety Analysis Report (FSAR). Criticality scenario is developed and details and description of the analysis methods are provided.

  13. Publisher's Note: New mechanism for the top-bottom mass hierarchy...

    Office of Scientific and Technical Information (OSTI)

    New mechanism for the top-bottom mass hierarchy Phys. Rev. D 70, 055006 (2004) Citation Details In-Document Search Title: Publisher's Note: New mechanism for the top-bottom mass ...

  14. Efficacy and Toxicity of Chemoradiotherapy Using Intensity-Modulated Radiotherapy for Unknown Primary of Head and Neck

    SciTech Connect (OSTI)

    Sher, David J.; Balboni, Tracy A.; Haddad, Robert I.; Norris, Charles M.; Posner, Marshall R.; Wirth, Lori J.; Goguen, Laura A.; Annino, Donald; Tishler, Roy B.

    2011-08-01

    Purpose: No single standard treatment paradigm is available for head-and-neck squamous cell carcinoma of an unknown primary (HNCUP). Bilateral neck radiotherapy with mucosal axis irradiation is widely used, with or without chemotherapy and/or surgical resection. Intensity-modulated radiotherapy (IMRT) is a highly conformal method for delivering radiation that is becoming the standard of care and might reduce the long-term treatment-related sequelae. We report the Dana-Farber Cancer Institute experience with IMRT-based treatment for HNCUP. Patients and Materials: A retrospective study of all patients treated at the Dana-Farber Cancer Institute for HNCUP with IMRT between August 2004 and January 2009. The primary endpoint was overall survival; the secondary endpoints were locoregional and distant control, and acute and chronic toxicity. Results: A total of 24 patients with HNCUP were included. Of these patients, 22 had Stage N2 disease or greater. All patients underwent neck computed tomography, positron emission tomography-computed tomography, and examination under anesthesia with directed biopsies. Of the 24 patients, 22 received concurrent chemotherapy, and 7 (29%) also underwent induction chemotherapy. The median involved nodal dose was 70 Gy, and the median mucosal dose was 60 Gy. With a median follow-up of 2.1 years, the 2-year actuarial overall survival and locoregional control rate was 92% and 100%, respectively. Only 25% of the patients had Grade 2 xerostomia, although 11 patients (46%) required esophageal dilation for stricture. Conclusion: In a single-institution series, IMRT-based chemoradiotherapy for HNCUP was associated with superb overall survival and locoregional control. The xerostomia rates were promising, but the aggressive therapy was associated with significant rates of esophageal stenosis.

  15. Geothermal Industry Ends 2012 on a High Note | Department of Energy

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

    Ends 2012 on a High Note Geothermal Industry Ends 2012 on a High Note December 18, 2012 - 12:14pm Addthis Year-end highlights include new domestic projects, international development and policy benchmarks Washington, D.C. - The past 12 months saw continued economic challenges for many American industries, including those in the renewable energy field, but the country's geothermal community witnessed a year of growth, both domestically and abroad. The Geothermal Energy Association (GEA) today

  16. Sampling designs for geochemical baseline studies in the Colorado oil shale region: a manual for practical application

    SciTech Connect (OSTI)

    Klusman, R. W.; Ringrose, C. D.; Candito, R. J.; Zuccaro, B.; Rutherford, D. W.; Dean, W. E.

    1980-06-01

    This manual presents a rationale for sampling designs, and results of geochemical baseline studies in the Colorado portion of the oil-shale region. The program consists of a systematic trace element study of soils, stream sediments, and plants carried out in a way to be conservative of human and financial resources and yield maximum information. Extension of this approach to other parameters, other locations, and to environmental baseline studies in general is a primary objective. A baseline for any geochemical parameter can be defined as the concentration of that parameter in a given medium such as soil, the range of its concentration, and the geographic scale of variability. In air quality studies, and to a lesser extent for plants, the temporal scale of variability must also be considered. In studies of soil, the temporal variablility does not become a factor until such time that a study is deemed necessary to evaluate whether or not there have been changes in baseline levels as a result of development. The manual is divided into five major parts. The first is a suggested sampling protocol which is presented in an outline form for guiding baseline studies in this area. The second section is background information on the physical features of the area of study, trace elements of significance occurring in oil shale, and the sample media used in these studies. The third section is concerned primarily with sampling design and its application to the geochemical studies of the oil shale region. The last sections, in the form of appendices, provide actual data and illustrate in a systematic manner, the calculations performed to obtain the various summary data. The last segment of the appendices is a more academic discussion of the geochemistry of trace elements and the parameters of importance influencing their behavior in natural systems.

  17. Structural Analysis for Gold Mineralization Using Remote Sensing and Geochemical Techniques in a GIS Environment: Island of Lesvos, Hellas

    SciTech Connect (OSTI)

    Rokos, D. Argialas, D. Mavrantza, R. St Seymour, K.; Vamvoukakis, C.; Kouli, M.; Lamera, S.; Paraskevas, H.; Karfakis, I.; Denes, G

    2000-12-15

    Exploration for epithermal Au has been active lately in the Aegean Sea of the eastern Mediterranean Basin, both in the islands of the Quaternary arc and in those of the back-arc region. The purpose of this study was the structural mapping and analysis for a preliminary investigation of possible epithermal gold mineralization, using remotely sensed data and techniques, structural and field data, and geochemical information, for a specific area on the Island of Lesvos. Therefore, Landsat-TM and SPOT-Pan satellite images and the Digital Elevation Model (DEM) of the study area were processed digitally using spatial filtering techniques for the enhancement and recognition of the geologically significant lineaments, as well as algebraic operations with band ratios and Principal Component Analysis (PCA), for the identification of alteration zones. Statistical rose diagrams and a SCHMIDT projection Stereo Net were generated from the lineament maps and the collected field data (dip and strike measurements of faults, joints, and veins), respectively. The derived lineament map and the band ratio images were manipulated in a GIS environment, in order to study the relation of the tectonic pattern to both the alteration zoning and the geomorphology of the volcanic field of the study area. Target areas of high interest for possible mineralization also were specified using geochemical techniques, such as X-Ray Diffraction (XRD) analysis, trace-element, and fluid-inclusion analysis. Finally, preliminary conclusions were derived about possible mineralization, the type (high or low sulfidation), and the extent of mineralization, by combining the structural information with geochemical information.

  18. Mineral dissolution and precipitation during CO2 injection at the Frio-I Brine Pilot: Geochemical modeling and uncertainty analysis

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

    Ilgen, A. G.; Cygan, R. T.

    2015-12-07

    During the Frio-I Brine Pilot CO2 injection experiment in 2004, distinct geochemical changes in response to the injection of 1600 tons of CO2 were recorded in samples collected from the monitoring well. Previous geochemical modeling studies have considered dissolution of calcite and iron oxyhydroxides, or release of adsorbed iron, as the most likely sources of the increased ion concentrations. We explore in this modeling study possible alternative sources of the increasing calcium and iron, based on the data from the detailed petrographic characterization of the Upper Frio Formation “C”. Particularly, we evaluate whether dissolution of pyrite and oligoclase (anorthitemore » component) can account for the observed geochemical changes. Due to kinetic limitations, dissolution of pyrite and anorthite cannot account for the increased iron and calcium concentrations on the time scale of the field test (10 days). However, dissolution of these minerals is contributing to carbonate and clay mineral precipitation on the longer time scales (1000 years). The one-dimensional reactive transport model predicts carbonate minerals, dolomite and ankerite, as well as clay minerals kaolinite, nontronite and montmorillonite, will precipitate in the Frio Formation “C” sandstone as the system progresses towards chemical equilibrium during a 1000-year period. Cumulative uncertainties associated with using different thermodynamic databases, activity correction models (Pitzer vs. B-dot), and extrapolating to reservoir temperature, are manifested in the difference in the predicted mineral phases. Furthermore, these models are consistent with regards to the total volume of mineral precipitation and porosity values which are predicted to within 0.002%.« less

  19. GEOCHEMICAL INVESTIGATIONS OF CO₂-BRINE-ROCK INTERACTIONS OF THE KNOX GROUP IN THE ILLINOIS BASIN

    SciTech Connect (OSTI)

    Yoksoulian, Lois; Berger, Peter; Freiburg, Jared; Butler, Shane; Leetaru, Hannes

    2014-09-30

    Increased output of greenhouse gases, particularly carbon dioxide (CO₂), into the atmosphere from anthropogenic sources is of great concern. A potential technology to reduce CO₂ emissions is geologic carbon sequestration. This technology is currently being evaluated in the United States and throughout the world. The geology of the Illinois Basin exhibits outstanding potential as a carbon sequestration target, as demonstrated by the ongoing Illinois Basin – Decatur Project that is using the Mt. Simon Sandstone reservoir and Eau Claire Shale seal system to store and contain 1 million tonnes of CO₂. The Knox Group-Maquoketa Shale reservoir and seal system, located stratigraphically above the Mt. Simon Sandstone-Eau Claire Shale reservoir and seal system, has little economic value as a resource for fossil fuels or as a potable water source, making it ideal as a potential carbon sequestration target. In order for a reservoir-seal system to be effective, it must be able to contain the injected CO₂ without the potential for the release of harmful contaminants liberated by the reaction between CO₂-formation fluids and reservoir and seal rocks. This study examines portions of the Knox Group (Potosi Dolomite, Gunter Sandstone, New Richmond Sandstone) and St. Peter Sandstone, and Maquoketa Shale from various locations around the Illinois Basin. A total of 14 rock and fluid samples were exposed to simulated sequestration conditions (9101–9860 kPa [1320–1430 psi] and 32°–42°C [90°– 108°F]) for varying amounts of time (6 hours to 4 months). Knox Group reservoir rocks exhibited dissolution of dolomite in the presence of CO₂ as indicated by petrographic examination, X-ray diffraction analysis, and fluid chemistry analysis. These reactions equilibrated rapidly, and geochemical modeling confirmed that these reactions reached equilibrium within the time frames of the experiments. Pre-reaction sample mineralogy and postreaction fluid geochemistry from this

  20. Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to an Unconfined Oxidizing Carbonate Aquifer

    SciTech Connect (OSTI)

    Wang, Guohui; Qafoku, Nikolla; Lawter, Amanda R.; Bowden, Mark E.; Harvey, Omar; Sullivan, E. C.; Brown, Christopher F.

    2015-07-15

    leakage is likely to influence pertinent geochemical processes (e.g., dissolution/precipitation, sorption/desorption) in the aquifer sediments and will support site selection, risk assessment, policy-making, and public education efforts associated with geologic carbon sequestration.

  1. Final Report: Molecular Basis for Microbial Adhesion and Geochemical Surface Reactions: A Study Across Scales

    SciTech Connect (OSTI)

    Dixon, David Adams

    2013-06-27

    Computational chemistry was used to help provide a molecular level description of the interactions of Gram-negative microbial membranes with subsurface materials. The goal is to develop a better understanding of the molecular processes involved in microbial metal binding, microbial attachment to mineral surfaces, and, eventually, oxidation/reduction reactions (electron transfer) that can occur at these surfaces and are mediated by the bacterial exterior surface. The project focused on the interaction of the outer microbial membrane, which is dominated by an exterior lipopolysaccharide (LPS) portion, of Pseudomonas aeruginosa with the mineral goethite and with solvated ions in the environment. This was originally a collaborative project with T.P. Straatsma and B. Lowery of the Pacific Northwest National Laboratory. The University of Alabama effort used electronic structure calculations to predict the molecular behavior of ions in solution and the behavior of the sugars which form a critical part of the LPS. The interactions of the sugars with metal ions are expected to dominate much of the microscopic structure and transport phenomena in the LPS. This work, in combination with the molecular dynamics simulations of Straatsma and the experimental electrochemistry and microscopy measurements of Lowry, both at PNNL, is providing new insights into the detailed molecular behavior of these membranes in geochemical environments. The effort at The University of Alabama has three components: solvation energies and structures of ions in solution, prediction of the acidity of the critical groups in the sugars in the LPS, and binding of metal ions to the sugar anions. An important aspect of the structure of the LPS membrane as well as ion transport in the LPS is the ability of the sugar side groups such as the carboxylic acids and the phosphates to bind positively charged ions. We are studying the acidity of the acidic side groups in order to better understand the ability of

  2. The art and science of magnet design: Selected notes of Klaus Halbach. Volume 2

    SciTech Connect (OSTI)

    1995-02-01

    This volume contains a compilation of 57 notes written by Dr. Klaus Halbach selected from his collection of over 1650 such documents. It provides an historic snapshot of the evolution of magnet technology and related fields as the notes range from as early as 1965 to the present, and is intended to show the breadth of Dr. Halbach`s interest and ability that have long been an inspiration to his many friends and colleagues. As Halbach is an experimental physicist whose scientific interests span many areas, and who does his most innovative work with pencil and paper rather than at the workbench or with a computer, the vast majority of the notes in this volume were handwritten and their content varies greatly--some reflect original work or work for a specific project, while others are mere clarifications of mathematical calculations or design specifications. As the authors converted the notes to electronic form, some were superficially edited and corrected, while others were extensively re-written to reflect current knowledge and notation. The notes are organized under five categories which reflect their primary content: Beam Position Monitors, (bpm), Current Sheet Electron Magnets (csem), Magnet Theory, (thry), Undulators and Wigglers (u-w), and Miscellaneous (misc). Within the category, they are presented chronologically starting from the most recent note and working backwards in time.

  3. Permeability, geochemical, and water quality tests in support of an aquifer thermal energy storage site in Minnesota

    SciTech Connect (OSTI)

    Blair, S.C.; Deutsch, W.J.; Mitchell, P.J.

    1985-04-01

    This report describes the Underground Energy Storage Program's efforts to characterize physicochemical processes at DOE's ATES Field Test Facility (FTF) located on the University of Minnesota campus at St. Paul, Minnesota. Experimental efforts include: field tests at the St. Paul FTF to characterize fluid injectability and to evaluate the effectiveness of fluid-conditioning equipment, geochemical studies to investigate chemical reactions resulting from alterations to the aquifer's thermal regime, and laboratory tests on sandstone core from the site. Each experimental area is discussed and results obtained thus far are reported. 23 refs., 39 figs., 12 tabs.

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

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

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

  5. Geologic, geochemical, and geographic controls on NORM in produced water from Texas oil, gas, and geothermal reservoirs. Final report

    SciTech Connect (OSTI)

    Fisher, R.

    1995-08-01

    Water from Texas oil, gas, and geothermal wells contains natural radioactivity that ranges from several hundred to several thousand Picocuries per liter (pCi/L). This natural radioactivity in produced fluids and the scale that forms in producing and processing equipment can lead to increased concerns for worker safety and additional costs for handling and disposing of water and scale. Naturally occurring radioactive materials (NORM) in oil and gas operations are mainly caused by concentrations of radium-226 ({sup 226}Ra) and radium-228 ({sup 228}Ra), daughter products of uranium-238 ({sup 238}U) and thorium-232 ({sup 232}Th), respectively, in barite scale. We examined (1) the geographic distribution of high NORM levels in oil-producing and gas-processing equipment, (2) geologic controls on uranium (U), thorium (Th), and radium (Ra) in sedimentary basins and reservoirs, (3) mineralogy of NORM scale, (4) chemical variability and potential to form barite scale in Texas formation waters, (5) Ra activity in Texas formation waters, and (6) geochemical controls on Ra isotopes in formation water and barite scale to explore natural controls on radioactivity. Our approach combined extensive compilations of published data, collection and analyses of new water samples and scale material, and geochemical modeling of scale Precipitation and Ra incorporation in barite.

  6. GaMin’11 – an international inter-laboratory comparison for geochemical CO₂ - saline fluid - mineral interaction experiments

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

    Ostertag-Henning, C.; Risse, A.; Thomas, B.; Rosenbauer, R.; Rochelle, C.; Purser, G.; Kilpatrick, A.; Rosenqvist, J.; Yardley, B.; Karamalidis, A.; et al

    2014-12-31

    Due to the strong interest in geochemical CO₂-fluid-rock interaction in the context of geological storage of CO₂ a growing number of research groups have used a variety of different experimental ways to identify important geochemical dissolution or precipitation reactions and – if possible – quantify the rates and extent of mineral or rock alteration. In this inter-laboratory comparison the gas-fluid-mineral reactions of three samples of rock-forming minerals have been investigated by 11 experimental labs. The reported results point to robust identification of the major processes in the experiments by most groups. The dissolution rates derived from the changes in compositionmore » of the aqueous phase are consistent overall, but the variation could be reduced by using similar corrections for changing parameters in the reaction cells over time. The comparison of experimental setups and procedures as well as of data corrections identified potential improvements for future gas-fluid-rock studies.« less

  7. Application of geochemical techniques to deduce the reservoir performance of the Palinpinon Geothermal Field, Philippines - an update

    SciTech Connect (OSTI)

    Ramos-Candelaria, M.N.; Garcia, S.E.; Hermoso, D.Z.

    1997-12-31

    Regular monitoring of various geochemical parameters in the water and vapor phases of the production wells at the Palinpinon I and II sectors of the Southern Negros Geothermal Field have been useful in the identification of the dominant reservoir processes occurring related to the present exploitation strategy. Observed geochemical and physical changes in the output of production wells have dictated production and injection strategies adopted to maximize production to meet the steam requirements of the power plant. Correlation of both physical and chemical data have identified the following reservoir processes: (1) Injection breakthrough via the Ticala Fault of the highly mineralized (Cl {approximately}8,000-10,500 mg/kg), isotopically enriched ({delta}{sup 18}O = -3.00{per_thousand}, {delta}{sup 2} H = -39{per_thousand}), and gas depleted brine for wells in the SW and central Puhagan. Injection breakthrough is also occurring in Palinpinon II and has resulted in temperature drops of 5-10{degrees}C.2. Pressure drawdown enhanced boiling in the liquid reservoir with steam separation of 220-240{degrees}C, feeding wells tapping the natural steam zone. However, enhanced drawdown has induced the entry of shallow acid steam condensate fluids in some wells (e.g. OK-7, PN-29D, PN-18D), which if not arrested could reduce production.

  8. INEEL Subregional Conceptual Model Report Volume 2: Summary of Existing Knowledge of Geochemical Influences on the Fate and Transport of Contaminants in the Subsurface at the INEEL

    SciTech Connect (OSTI)

    Paul L. Wichlacz; Robert C. Starr; Brennon Orr

    2003-09-01

    This document summarizes previous descriptions of geochemical system conceptual models for the vadose zone and groundwater zone (aquifer) beneath the Idaho National Engineering and Environmental Laboratory (INEEL). The primary focus is on groundwater because contaminants derived from wastes disposed at INEEL are present in groundwater, groundwater provides a pathway for potential migration to receptors, and because geochemical characteristics in and processes in the aquifer can substantially affect the movement, attenuation, and toxicity of contaminants. The secondary emphasis is perched water bodies in the vadose zone. Perched water eventually reaches the regional groundwater system, and thus processes that affect contaminants in the perched water bodies are important relative to the migration of contaminants into groundwater. Similarly, processes that affect solutes during transport from nearsurface disposal facilities downward through the vadose zone to the aquifer are relevant. Sediments in the vadose zone can affect both water and solute transport by restricting the downward migration of water sufficiently that a perched water body forms, and by retarding solute migration via ion exchange. Geochemical conceptual models have been prepared by a variety of researchers for different purposes. They have been published in documents prepared by INEEL contractors, the United States Geological Survey (USGS), academic researchers, and others. The documents themselves are INEEL and USGS reports, and articles in technical journals. The documents reviewed were selected from citation lists generated by searching the INEEL Technical Library, the INEEL Environmental Restoration Optical Imaging System, and the ISI Web of Science databases. The citation lists were generated using the keywords ground water, groundwater, chemistry, geochemistry, contaminant, INEL, INEEL, and Idaho. In addition, a list of USGS documents that pertain to the INEEL was obtained and manually searched

  9. Teleportation of a two-qubit arbitrary unknown state using a four-qubit genuine entangled state with the combination of bell-state measurements

    SciTech Connect (OSTI)

    Dong, Li; Xiu, Xiao-Ming, E-mail: xiuxiaomingdl@126.com [Dalian University of Technology, School of Physics and Optoelectronic Technology (China)] [Dalian University of Technology, School of Physics and Optoelectronic Technology (China); Ren, Yuan-Peng [Bohai University, Higher Professional Technical Institute (China)] [Bohai University, Higher Professional Technical Institute (China); Gao, Ya-Jun [Bohai University, College of Mathematics and Physics (China)] [Bohai University, College of Mathematics and Physics (China); Yi, X. X. [Dalian University of Technology, School of Physics and Optoelectronic Technology (China)] [Dalian University of Technology, School of Physics and Optoelectronic Technology (China)

    2013-01-15

    We propose a protocol transferring an arbitrary unknown two-qubit state using the quantum channel of a four-qubit genuine entangled state. Simplifying the four-qubit joint measurement to the combination of Bell-state measurements, it can be realized more easily with currently available technologies.

  10. L3: RTM.MCH.P6.02 Technical Note RNSD-00-

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

    RTM.MCH.P6.02 Technical Note RNSD-00- 000: Evaluating the Denovo SPN Discretization, Rev 1 Tom Evans Oak Ridge National Laboratory April 5, 2013 CASL-U-2014-0083-000 Technical Note Reactor and Nuclear Systems Division Radiation Transport Group From: Tom Evans, Steven Hamilton Number: RNSD-00-000 Date: April 5, 2013 Subject: Evaluating the Denovo SP N Discretization (Rev. 1) Executive Summary This document describes a preliminary assessment of the SP N discretization in Denovo. Comparison to

  11. Data Package of Samples Collected for Hydrogeologic and Geochemical Characterization: 300 Area RI/FS Sediment Cores

    SciTech Connect (OSTI)

    Lindberg, Michael J.; Bjornstad, Bruce N.; Lanigan, David C.; Williams, Benjamin D.

    2011-05-01

    This is a data package for sediment samples received from the 300 FF 5 OU. This report was prepared for CHPRC. Between August 16, 2010 and April 25, 2011 sediment samples were received from 300-FF-5 for geochemical studies. The analyses for this project were performed at the 331 building located in the 300 Area of the Hanford Site. The analyses were performed according to Pacific Northwest National Laboratory (PNNL) approved procedures and/or nationally recognized test procedures. The data sets include the sample identification numbers, analytical results, estimated quantification limits (EQL), and quality control data. The preparatory and analytical quality control requirements, calibration requirements, acceptance criteria, and failure actions are defined in the on-line QA plan 'Conducting Analytical Work in Support of Regulatory Programs' (CAW). This QA plan implements the Hanford Analytical Services Quality Assurance Requirements Documents (HASQARD) for PNNL.

  12. Actualistic and Geochemical Modeling of Reservoir Rock, CO2 and Formation Fluid Interaction, Citronelle Oil Field, Alabama

    SciTech Connect (OSTI)

    Weislogel, Amy

    2014-01-31

    This report includes description of the Citronelle field study area and the work carried out in the project to characterize the geology and composition of reservoir rock material and to collect an analyze the geochemical composition of produced fluid waters from the Citronelle field. Reservoir rock samples collected from well bore core were made into thin-sections and assessed for textural properties, including pore types and porosity distribution. Compositional framework grain modal data were collected via point-counting, and grain and cement mineralogy was assessed using SEM-EDS. Geochemistry of fluid samples is described and modeled using PHREEQC. Composition of rock and produced fluids were used as inputs for TOUGHREACT reactive transport modeling, which determined the rock-fluid system was in disequilibrium.

  13. The integration of geochemical, geological and engineering data to determine reservoir continuity in the Iagifu-Hedinia field, Papua New Guinea

    SciTech Connect (OSTI)

    Kaufman, R.L.; Eisenberg, L.I.; Fitzmorris, R.E.

    1995-08-01

    A series of oil and gas fields, including Iagifu-Hedinia, occur along the leading edge of the Papuan fold and thrust belt. Formed during Pliocene to Recent compression, they are structurally complex, and typically broken into multiple reservoir compartments. The presence of the karstic Darai Limestone at the surface over most of the fold belt prevents acquisition of useful seismic data. Reservoir mapping, and establishment of reservoir continuity, is therefore based soley on (1) surface geologic data, (2) drilling data; initially dipmeter and RFT pressure data, and subsequently well production histories, and (3) geochemical correlation of reservoir fluids. During appraisal of the Iagifu-Hedinia discovery, these complimentary data sets demonstrated that (1) a single hydrocarbon column existed above a flowing aquifer in the main block of Iagifu-Hedinia field, (2) a separate acuumulation existed in the Usano area. Geochemical data have suggested the presence of reservoir compartments where other data were missing or inconclusive. Subsequently-acquired production history data have confirmed the geochemically-based interpretations. Geochemical data suggest that oils at Iagifu-Hedinia have a common source. The slight differences in oil composition between reservoirs are likely due to multiple phases of expulsion from the same source rock and/or migration-fractionation.

  14. OTS NOTE

    Office of Legacy Management (LM)

    FUSRAP NJ.18 Exxon Research and Engineering Company The Former Standard Oil Development Company Linden, New Jersey Site Function In the spring of 1942, Standard Oil Development ...

  15. OTS NOTE

    Office of Legacy Management (LM)

    2, 1990 TO: W. Alexander Williams FROM: Don Mackenzie &d> SUBJECT: Elimination of 3 Facilities from FUSRAP Enclosed are elimination recommendations for Vitro Chemical Co.,...

  16. OTS NOTE

    Office of Legacy Management (LM)

    January 15, 1991 TO: Alexander Williams FROM: Dan Stout@ SUBJECT: Gruen Watch Company Consideration Recommendation Attached for your review is a consideration recommendation for...

  17. Explanatory Notes

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

    data at a State level on 14 petroleum products for various retail and wholesale marketing categories. The Form EIA-782B collects resellerretailer monthly price and volume...

  18. TECHNICAL NOTE

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

    The resulting system bandwidth is slightly less than 80 nm (see Fig. 2 for a sample spectrum). Use of the fiber-optic coupler and microchannel plate does not seriously...

  19. OTS NOTE

    Office of Legacy Management (LM)

    ... Coal ash as : iightly elevated levels of naturally occurring uranium , radium , and thorium which ZXK voted during coal combustion. Nevertheless, several auger samples (Al5 through ...

  20. EDITORS NOTE:

    Office of Environmental Management (EM)

    ... in both alternative fuels and energy ... in biofuels, fuel blends, plug-in hybrids, and more effcient vehicle technologies could ... Social and Economic Trends Perhaps the ...

  1. Explanatory Notes

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

    complete enumera- tion has the same nonsampling errors as the sample survey. The sampling error, or standard error of the estimate, is a measure of the variability among the...

  2. OTS NOTE

    Office of Legacy Management (LM)

    ... It is proposed that the Commission pay 4. 50 per pound of contained uranium oxide (U3C31, such pay- .ment to be in addition to a price, f. o. b. Chattanooga, TZM. , of 4. 25 per ...

  3. OTS NOTE

    Office of Legacy Management (LM)

    A telephone interview was conducted with a former Baker-Perkins employee who joined the company in the mid-1970's (see attached Contact Report). The person interviewed was not ...

  4. OTS NOTE

    Office of Legacy Management (LM)

    ...u; a&d de& o* CITY: de54 LPv ---...w-e-- STATE: CIA ------ OWNER(S) Current: 3 H bwd, ---... Owner contacted 0 yes PO; ...

  5. OTS NOTE

    Office of Legacy Management (LM)

    Source Material q Residue 0 Natural Radioactive Material from Non-Nuclear Activities 0 Man-Made 0 Other--- Comment ---...

  6. Geothermal prospecting by geochemical methods on natural gas and water discharges in the Vulsini Mts Volcanic District (Central Italy)

    SciTech Connect (OSTI)

    Duchi, V.; Minissale, A.A.; Ortino, S.; Romani, L.

    1987-01-01

    The Latera and Torre Alfina geothermal fields were discovered in the Vulsini Mts district (central Italy) in the 70s. The fluid produced by the two geothermal systems is a high rhoCO/sub 2/(around 7 MPa) sodium chloride solution (T.D.S. is 9200 ppm at Latera and 7800 at Torre Alfina), with high SiO/sub 2/ and H/sub 3/BO/sub 3/ contents. The fluid temperature taken at well bottom is about 155/sup 0/C at Torre Alfina, whereas at Latera it ranges from 200 to over 350/sup 0/C. In spite of these temperatures, recorded in producing wells, previous geochemical prospectings using geothermometers in natural thermal manifestations had predicted temperatures no higher than 140/sup 0/C in all the Vulsini district. This contrasting feature between real temperatures and those evaluated during prospecting is caused by the fast circulation of large amounts of meteoric waters in the aquifer located in the shallow parts of the carbonate reservoir formations, and by the short interaction between the latter and the deep geothermal fluids. In the present study a new geochemical survey on thermal and cold springs, stream samples, as well as natural gas emissions has been carried out. A critical review of the main geothermometers, some considerations about the hydraulic behavior of the reservoir formations, and the cross comparison between NH/sub 4//sup +//B ratio, rhoCO/sub 2/ and SiO/sub 2/ content in both cold and thermal waters, have led to the conclusion that in the Vulsini Mts there are no shallow anomalous areas apart from those already discovered at Latera and Torre Alfina. The present method could be successfully applied in other geothermal systems, where the potential reservoir is represented by carbonate formations.

  7. Regular oscillations and random motion of glass microspheres levitated by a single optical beam in air: Publisher’s note

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

    Moore, Jeremy; Martin, Leopoldo L.; Maayani, Shai; Kim, Kyu Hyun; Chandrahalim, Hengky; Eichenfield, Matt; Martin, Inocencio R.; Carmon, Tal

    2016-02-19

    The publisher’s note amends a recent publication [Opt. Express 24(3), 2850–2857 (2016)] to include Acknowledgments.

  8. Microsoft PowerPoint - DOE O 413 3B Brief v9 with key points in notes

    Office of Environmental Management (EM)

    [Read-Only] | Department of Energy DOE O 413 3B Brief v9 with key points in notes [Read-Only] Microsoft PowerPoint - DOE O 413 3B Brief v9 with key points in notes [Read-Only] Microsoft PowerPoint - DOE O 413 3B Brief v9 with key points in notes [Read-Only] (2.08 MB) More Documents & Publications Example BCP Template Microsoft PowerPoint - DOE O 413 3B Brief v9 with key points in notes [Read-Only] CD-2, Approve Performance Baseline External Independent Review (EIR) Standard Operating

  9. Workshop Notes from ""Compressed Natural Gas and Hydrogen Fuels: Lessons Learned for the Safe Deployment of Vehicles"" Workshop, December 10-11, 2009

    Broader source: Energy.gov [DOE]

    These notes provide information about the Compressed Natural Gas and Hydrogen Fuels workshop in December 2009.

  10. Mercury Geochemical, Groundwater Geochemical, And Radiometric...

    Open Energy Info (EERE)

    at right angles to known and suspected faults. Scintillometer readings (gamma radiation - total counts second) were also recorded at each soil sample station. At the...

  11. EPICS release 3.11.6 specific documentation -- Release notes for EPICS 3.11.6

    SciTech Connect (OSTI)

    1994-06-07

    These notes cover the following: (1) directions for switching to production APS release R3.11.6; (2) unbundling of channel access clients; (3) access security; (4) channel access additions; synchronous time support; and (5) description of major differences between R3.11.3 and R3.11.6 Also included is a list of new and/or updated documentation for the program.

  12. LLW (Low-Level Waste) Notes, Volume 13, Number 1, February 1998

    SciTech Connect (OSTI)

    1998-02-01

    LLW Notes is a newsletter distributed to Low-Level Radioactive Waste Forum Participants and other state and compact officials. The LLW Forum provides an opportunity for state and compact officials to share information with one another and to exchange views with officials of federal agencies and other interested parties. This issue focuses on the following topics: DOI approves Ward Valley permit application; Project evidentiary hearings begin in Texas; and Summary judgment motions in California breach of contract action.

  13. U.S. Department of Energy Onboard Storage Tank Workshop Notes

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

    U.S. Department of Energy Onboard Storage Tank Workshop Workshop Notes April 29, 2010 Sandia National Laboratories - Livermore, CA 2 Report from the Onboard Storage Tank Workshop Livermore, CA April 29 th , 2010 The Onboard Storage Tank Workshop was held on April 29 th , 2010, at Sandia National Laboratories (SNL) in Livermore, CA. The Workshop was co-hosted by SNL and the United States Department of Energy (DOE). The purpose of the Workshop was to identify key issues including research and

  14. COLLOQUIUM - NOTE SPECIAL TIME OF 3:15PM: Savannah River National

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

    Laboratory: Underpinning Critical National Missions | Princeton Plasma Physics Lab May 15, 2013, 3:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM - NOTE SPECIAL TIME OF 3:15PM: Savannah River National Laboratory: Underpinning Critical National Missions Dr. Jeff Griffin Savannah River National Laboratory The Cold War mission of the Savannah River Site in South Carolina was to produce nuclear materials for the national defense. Since the Cold War ended, SRS has continued to ensure United

  15. COLLOQUIUM - PLEASE NOTE SPECIAL DATE/TIME: The Magnetospheric MultiScale

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

    Mission Investigation of Magnetic Reconnection | Princeton Plasma Physics Lab February 21, 2013, 10:30am to 12:00pm Colloquia MBG Auditorium COLLOQUIUM - PLEASE NOTE SPECIAL DATE/TIME: The Magnetospheric MultiScale Mission Investigation of Magnetic Reconnection Professor Roy Torbert University of New Hampshire Presentation: File TC21FEB2013_RBTorbert_COMPRESSED.pptx In late fall 2014, NASA will launch the Magnetospheric Multiscale (MMS) mission to study the kinetic physics of magnetic

  16. Method for measuring dose-equivalent in a neutron flux with an unknown energy spectra and means for carrying out that method

    DOE Patents [OSTI]

    Distenfeld, Carl H.

    1978-01-01

    A method for measuring the dose-equivalent for exposure to an unknown and/or time varing neutron flux which comprises simultaneously exposing a plurality of neutron detecting elements of different types to a neutron flux and combining the measured responses of the various detecting elements by means of a function, whose value is an approximate measure of the dose-equivalent, which is substantially independent of the energy spectra of the flux. Also, a personnel neutron dosimeter, which is useful in carrying out the above method, comprising a plurality of various neutron detecting elements in a single housing suitable for personnel to wear while working in a radiation area.

  17. Solid phase evolution in the Biosphere 2 hillslope experiment as predicted by modeling of hydrologic and geochemical fluxes

    SciTech Connect (OSTI)

    Dontsova, K.; Steefel, C.I.; Desilets, S.; Thompson, A.; Chorover, J.

    2009-07-15

    A reactive transport geochemical modeling study was conducted to help predict the mineral transformations occurring over a ten year time-scale that are expected to impact soil hydraulic properties in the Biosphere 2 (B2) synthetic hillslope experiment. The modeling sought to predict the rate and extent of weathering of a granular basalt (selected for hillslope construction) as a function of climatic drivers, and to assess the feedback effects of such weathering processes on the hydraulic properties of the hillslope. Flow vectors were imported from HYDRUS into a reactive transport code, CrunchFlow2007, which was then used to model mineral weathering coupled to reactive solute transport. Associated particle size evolution was translated into changes in saturated hydraulic conductivity using Rosetta software. We found that flow characteristics, including velocity and saturation, strongly influenced the predicted extent of incongruent mineral weathering and neo-phase precipitation on the hillslope. Results were also highly sensitive to specific surface areas of the soil media, consistent with surface reaction controls on dissolution. Effects of fluid flow on weathering resulted in significant differences in the prediction of soil particle size distributions, which should feedback to alter hillslope hydraulic conductivities.

  18. L4:PHI.REL.P8.01 VERA Release Notes ID: 2013 VERA RSICC Release

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

    L4:PHI.REL.P8.01 VERA Release Notes ID: 2013 VERA RSICC Release (VERA 3.2) Matt Sieger Oak Ridge National Laboratory November 16, 2013 CASL-U-2014-0172-000 DRAFT VERA Release Notes Document VERA Release Notes (DRAFT) Release ID 2013 VERA RSICC Release (VERA 3.2) Release Date Sept. 30, 2013 Support Information Email questions or comments to the VERA development team at casl-support@CASL.gov 1. Introduction VERA, a "Virtual Environment for Reactor Applications", is a collection of

  19. Note: Design principles of a linear array multi-channel effusive metal-vapor atom source

    SciTech Connect (OSTI)

    Jana, B.; Majumder, A.; Thakur, K. B.; Das, A. K.

    2013-10-15

    Atomic beams can easily be produced by allowing atoms to effuse through a channel. In an earlier investigation [A. Majumder et al., Vacuum 83, 989 (2009)], we had designed, fabricated, and characterized an effusive metal-vapor source using collinear-array of multi-channel. In this note, we describe the theoretical basis of designing the source. Atom density in atomic beam has been estimated using a set of analytical expressions for long-channel operated in transparent mode. Parametric studies on aspect ratio of channel, inter-channel separation, beam width, and vertical distance from the source are carried out. They are useful in providing physical picture and optimizing design parameters.

  20. MicroBooNE Detector Stability MICROBOONE-NOTE-1013-PUB The MicroBooNE

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

    MicroBooNE Detector Stability MICROBOONE-NOTE-1013-PUB The MicroBooNE Collaboration June 30, 2016 Abstract The Micro Booster Neutrino Experiment (MicroBooNE) is designed to explore the low- energy excess in the ν e event spectrum reported by the MiniBooNE experiment [1] and to measure ν-Ar cross sections in the 1 GeV energy range. The detector is a liquid argon time projection chamber with wire readout, supplemented with a light detection system based on photo-multiplier tubes (PMTs). The

  1. Hanford Advisory Board FY2014 Work Plan - "A" List - Facilitator notes o

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

    Facilitator notes on midyear status for RAP-lead topics (updated 4/30/14) These are the priority topics that the Board is expected to take action on in FY2014, as agreed to by the TPA and the Board. The timing of these topics drives the need for committee meetings. Their status may change to "topics of interest" if they are delayed or deferred, and if there is agreement to do so among the EIC and Agency Liaisons. Adopted by Consensus, September 6, 2013 Page 1 of 12 Priority Topics -

  2. Summary Notes from 5 March 2008 Generic Technical Issue Discussion on Long-Term Grout Performance

    Office of Environmental Management (EM)

    6, 2008 Page 1 of 6 Summary Notes from 5 March 2008 Generic Technical Issue Discussion on Long-Term Grout Performance Attendees: Representatives from Department of Energy-Headquarters (DOE-HQ) and the U.S. Nuclear Regulatory Commission staff (NRC) met at the DOE offices in Germantown, Maryland on 5 March 2008. Representatives from Department of Energy- Savannah River (DOE-SR), Department of Energy-Idaho (DOE-ID), Department of Energy-Richland (DOE-RL), Department of Energy-River Protection

  3. TEC Tribal Issues Topic Group Conference Call Notes December 15, 1998 11

    Office of Environmental Management (EM)

    Notes December 15, 1998 11 a.m.-Noon EST Participants: Audrey Adamson (UETC), Pamela DeRensis (DOE/EM-22), Margaret Hodge (DOE/AL) Robert Holden (NCAI), Judith Holm (DOE/NTPA), Jerry Pardilla (NTEC), Wilda Portner (SAIC), Elissa Turner (DOE/RW), Heather Westra (Prairie Island Indian Community) and Catherine Volk (DOE/EM). This conference call addressed a number of issues and upcoming events. Discussed: expanding Tribal participation in the Group; upcoming TEC/WG meeting in Jacksonville, Florida;

  4. Attachment 1 - PIC Transcribed Flip Chart Notes Final Meeting Summary Page 12

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

    - PIC Transcribed Flip Chart Notes Final Meeting Summary Page 12 Public Involvement Committee September 4, 2013 Strategic Planning: Quarters by month * Q1: Oct. - Dec. * Q2: Jan - March * Q3: April - June * Q4: July - Sept. Page 1 Strategic Planning: 2014 Topics (Interactive activity) * = priority topic for discussion at meeting; �= priority for future discussion | Quarter prioritized for discussion (Q1, Q2, Q3, Q4) * 100-F Proposed Plan | *** Q2 * 100 D-H Proposed Plan * Draft Land

  5. Neutron Physics. A Revision of I. Halpern's notes on E. Fermi's lectures in 1945

    DOE R&D Accomplishments [OSTI]

    Beckerley, J.G.

    1951-10-16

    In the Fall of 1945 a course in Neutron Physics was given by Professor Fermi as part of the program of the Los Alamos University. The course consisted of thirty lectures most of which were given by Fermi. In his absence R.F. Christy and E. Segre gave several lectures. The present revision is based upon class notes prepared by I. Halpern with some assistance by B.T. Feld and issued first as document LADC 255 and later with wider circulation as MDDC 320.

  6. Note: Rapid reduction of graphene oxide paper by glow discharge plasma

    SciTech Connect (OSTI)

    Bo, Zheng; Qian, Jiajing; Duan, Liangping; Qiu, Kunzan Yan, Jianhua; Cen, Kefa; Han, Zhao Jun; Ostrikov, Kostya

    2015-05-15

    This note reports on a novel method for the rapid reduction of graphene oxide (GO) paper using a glow discharge plasma reactor. Glow discharge is produced and sustained between two parallel-plate graphite electrodes at a pressure of 240 mTorr. By exposing GO paper at the junction of negative-glow and Faraday-dark area for 4 min, the oxygen-containing groups can be effectively removed (C/O ratio increases from 2.6 to 7.9), while the material integrality and flexibility are kept well. Electrochemical measurements demonstrate that the as-obtained reduced GO paper can be potentially used for supercapacitor application.

  7. Isotopic and geochemical tracers for U(VI) reduction and U mobility at an in situ recovery U mine

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

    Basu, Anirban; Brown, Shaun T.; Christensen, John N.; DePaolo, Donald J.; Reimus, Paul W.; Heikoop, Jeffrey M.; Woldegabriel, Giday; Simmons, Ardyth M.; House, Brian M.; Hartmann, Matt; et al

    2015-05-19

    In situ recovery (ISR) uranium (U) mining mobilizes U in its oxidized hexavalent form (U(VI)) by oxidative dissolution of U from the roll-front U deposits. Post-mining natural attenuation of residual U(VI) at ISR mines is a potential remediation strategy. Detection and monitoring of naturally occurring reducing subsurface environments are important for successful implementation of this remediation scheme. We used the isotopic tracers ²³⁸U/²³⁵U (δ²³⁸U), ²³⁴U/²³⁸U activity ratio, and ³⁴S/³²S (δ³⁴S), and geochemical measurements of U ore and groundwater collected from 32 wells located within, upgradient, and downgradient of a roll-front U deposit to detect U(VI) reduction and U mobility atmore » an ISR mining site at Rosita, TX, USA. The δ²³⁸U in Rosita groundwater varies from 0.61‰ to -2.49‰, with a trend toward lower δ²³⁸U in downgradient wells. The concurrent decrease in U(VI) concentration and δ²³⁸U with an ε of 0.48‰ ± 0.08‰ is indicative of naturally occurring reducing environments conducive to U(VI) reduction. Additionally, characteristic ²³⁴U/²³⁸U activity ratio and δ³⁴S values may also be used to trace the mobility of the ore zone groundwater after mining has ended. These results support the use of U isotope-based detection of natural attenuation of U(VI) at Rosita and other similar ISR mining sites.« less

  8. Geochemical information for sites contaminated with low-level radioactive wastes: II. St. Louis Airport Storage Site

    SciTech Connect (OSTI)

    Seeley, F.G.; Kelmers, A.D.

    1985-01-01

    The St. Louis Airport Storage Site (SLASS) became radioactively contaminated as a result of wastes that were being stored from operations to recover uranium from pitchblende ores in the 1940s and 1950s. The US Department of Energy is considering various remedial action options for the SLASS under the Formerly Utilized Site Remedial Action Program (FUSRAP). This report describes the results of geochemical investigations, carried out to support the FUSRAP activities and to aid in quantifying various remedial action options. Soil and groundwater samples from the site were characterized, and sorption ratios for uranium and radium and apparent concentration limit values for uranium were measured in soil/groundwater systems by batch contact methodology. The uranium and radium concentrations in soil samples were significantly above background near the old contaminated surface horizon (now at the 0.3/sup -/ to 0.9/sup -/m depth); the maximum values were 1566 ..mu..g/g and 101 pCi/g, respectively. Below about the 6/sup -/m depth, the concentrations appeared to be typical of those naturally present in soils of this area (3.8 +- 1.2 ..mu..g/g and 3.1 +- 0.6 pCi/g). Uranium sorption ratios showed stratigraphic trends but were generally moderate to high (100 to 1000 L/kg). The sorption isotherm suggested an apparent uranium concentration limit of about 200 mg/L. This relatively high solubility can probably be correlated with the carbonate content of the soil/groundwater systems. The lower sorption ratio values obtained from the sorption isotherm may have resulted from changes in the experimental procedure or the groundwater used. The SLASS appears to exhibit generally favorable behavior for the retardation of uranium solubilized from waste in the site. Parametric tests were conducted to estimate the sensitivity of uranium sorption and solubility to the pH and carbonate content of the system.

  9. CORE-BASED INTEGRATED SEDIMENTOLOGIC, STRATIGRAPHIC, AND GEOCHEMICAL ANALYSIS OF THE OIL SHALE BEARING GREEN RIVER FORMATION, UINTA BASIN, UTAH

    SciTech Connect (OSTI)

    Lauren P. Birgenheier; Michael D. Vanden Berg,

    2011-04-11

    An integrated detailed sedimentologic, stratigraphic, and geochemical study of Utah's Green River Formation has found that Lake Uinta evolved in three phases (1) a freshwater rising lake phase below the Mahogany zone, (2) an anoxic deep lake phase above the base of the Mahogany zone and (3) a hypersaline lake phase within the middle and upper R-8. This long term lake evolution was driven by tectonic basin development and the balance of sediment and water fill with the neighboring basins, as postulated by models developed from the Greater Green River Basin by Carroll and Bohacs (1999). Early Eocene abrupt global-warming events may have had significant control on deposition through the amount of sediment production and deposition rates, such that lean zones below the Mahogany zone record hyperthermal events and rich zones record periods between hyperthermals. This type of climatic control on short-term and long-term lake evolution and deposition has been previously overlooked. This geologic history contains key points relevant to oil shale development and engineering design including: (1) Stratigraphic changes in oil shale quality and composition are systematic and can be related to spatial and temporal changes in the depositional environment and basin dynamics. (2) The inorganic mineral matrix of oil shale units changes significantly from clay mineral/dolomite dominated to calcite above the base of the Mahogany zone. This variation may result in significant differences in pyrolysis products and geomechanical properties relevant to development and should be incorporated into engineering experiments. (3) This study includes a region in the Uinta Basin that would be highly prospective for application of in-situ production techniques. Stratigraphic targets for in-situ recovery techniques should extend above and below the Mahogany zone and include the upper R-6 and lower R-8.

  10. Radiation Therapy in the Management of Head-and-Neck Cancer of Unknown Primary Origin: How Does the Addition of Concurrent Chemotherapy Affect the Therapeutic Ratio?

    SciTech Connect (OSTI)

    Chen, Allen M.; Farwell, D. Gregory; Lau, Derick H.; Li Baoqing; Luu, Quang; Donald, Paul J.

    2011-10-01

    Purpose: To determine how the addition of cisplatin-based concurrent chemotherapy to radiation therapy influences outcomes among a cohort of patients treated for head-and-neck cancer of unknown primary origin. Methods and Materials: The medical records of 60 consecutive patients treated by radiation therapy for squamous cell carcinoma of the head and neck presenting as cervical lymph node metastasis of occult primary origin were reviewed. Thirty-two patients (53%) were treated by concurrent chemoradiation, and 28 patients (47%) were treated by radiation therapy alone. Forty-five patients (75%) received radiation therapy after surgical resection, and 15 patients (25%) received primary radiation therapy. Thirty-five patients (58%) were treated by intensity-modulated radiotherapy. Results: The 2-year estimates of overall survival, local-regional control, and progression-free survival were 89%, 89%, and 79%, respectively, among patients treated by chemoradiation, compared to 90%, 92%, and 83%, respectively, among patients treated by radiation therapy alone (p > 0.05, for all). Exploratory analysis failed to identify any subset of patients who benefited from the addition of concurrent chemotherapy to radiation therapy. The use of concurrent chemotherapy was associated with a significantly increased incidence of Grade 3+ acute and late toxicity (p < 0.001, for both). Conclusions: Concurrent chemoradiation is associated with significant toxicity without a clear advantage to overall survival, local-regional control, and progression-free survival in the treatment of head-and-neck cancer of unknown primary origin. Although selection bias cannot be ignored, prospective data are needed to further address this question.

  11. Notes on the Langevin model for turbulent diffusion of ``marked`` particles

    SciTech Connect (OSTI)

    Rodean, H.C.

    1994-01-26

    Three models for scalar diffusion in turbulent flow (eddy diffusivity, random displacement, and on the Langevin equation) are briefly described. These models random velocity increment based Fokker-Planck equation is introduced as are then examined in more detail in the reverse order. The Fokker-Planck equation is the Eulerian equivalent of the Lagrangian Langevin equation, and the derivation of e outlined. The procedure for obtaining the deterministic and stochastic components of the Langevin equation from Kolmogorov`s 1941 inertial range theory and the Fokker-Planck equation is described. it is noted that a unique form of the Langevin equation can be determined for diffusion in one dimension but not in two or three. The Langevin equation for vertical diffusion in the non-Gaussian convective boundary layer is presented and successively simplified for Gaussian inhomogeneous turbulence and Gaussian homogeneous turbulence in turn. The Langevin equation for Gaussian inhomogeneous turbulence is mathematically transformed into the random displacement model. It is shown how the Fokker-Planck equation for the random displacement model is identical in form to the partial differential equation for the eddy diffusivity model. It is noted that the Langevin model is applicable in two cases in which the other two are not valid: (1) very close in time and distance to the point of scalar release and (2) the non-Gaussian convective boundary layer. The two- and three-dimensional cases are considered in Part III.

  12. Mineral dissolution and precipitation during CO2 injection at the Frio-I Brine Pilot: Geochemical modeling and uncertainty analysis

    SciTech Connect (OSTI)

    Ilgen, A. G.; Cygan, R. T.

    2015-12-07

    During the Frio-I Brine Pilot CO2 injection experiment in 2004, distinct geochemical changes in response to the injection of 1600 tons of CO2 were recorded in samples collected from the monitoring well. Previous geochemical modeling studies have considered dissolution of calcite and iron oxyhydroxides, or release of adsorbed iron, as the most likely sources of the increased ion concentrations. We explore in this modeling study possible alternative sources of the increasing calcium and iron, based on the data from the detailed petrographic characterization of the Upper Frio Formation “C”. Particularly, we evaluate whether dissolution of pyrite and oligoclase (anorthite component) can account for the observed geochemical changes. Due to kinetic limitations, dissolution of pyrite and anorthite cannot account for the increased iron and calcium concentrations on the time scale of the field test (10 days). However, dissolution of these minerals is contributing to carbonate and clay mineral precipitation on the longer time scales (1000 years). The one-dimensional reactive transport model predicts carbonate minerals, dolomite and ankerite, as well as clay minerals kaolinite, nontronite and montmorillonite, will precipitate in the Frio Formation “C” sandstone as the system progresses towards chemical equilibrium during a 1000-year period. Cumulative uncertainties associated with using different thermodynamic databases, activity correction models (Pitzer vs. B-dot), and extrapolating to reservoir temperature, are manifested in the difference in the predicted mineral phases. Furthermore, these models are consistent with regards to the total volume of mineral precipitation and porosity values which are predicted to within 0.002%.

  13. Geochemical engineering reference manual

    SciTech Connect (OSTI)

    Owen, L.B.; Michels, D.E.

    1984-01-01

    The following topics are included in this manual: physical and chemical properties of geothermal brine and steam, scale and solids control, processing spent brine for reinjection, control of noncondensable gas emissions, and goethermal mineral recovery. (MHR)

  14. Geochemical indicators of depositional environment and soruce-rock potential for the Upper Ordovician Maquoketa Group, Illinois basin

    SciTech Connect (OSTI)

    Guthrie, J.M.; Pratt, L.M. )

    1994-05-01

    Two depositional cycles are recognized within the Upper Ordovician Maquoketa Group of the Illinois basin in a core from the New Jersey Zinc 1 Parrish well of Fulton County, Illinois. Organic carbon (C[sub org]), total sulfur, [sup 13]C content of the organic carbon ([delta][sup 13]C[sub org]), hydrogen and oxygen indices (HI and OI) from Rock-Eval pyrolysis and yields of extractable organic matter (EOM) vary through the cycles. Dark-brown to black, laminated shales are present in the lower portion of each cycle and have high values of C[sub org] (1.0-3.0%), HI (500-1000 mg hydrocarbon [HC]/g total organic carbon[TOC]), and EOM (500-2500 ppm), and more negative [delta][sup 13]C[sub org] values ([delta][sup 13]C[sub org] = -30 to -30.5%). Gray to greenish-gray, bioturbated shales are present in the upper portion of each cycle and have low values of C[sub org] (<1.0%), HI (<500 mg HC/g TOC), and EOM (<500 ppm), and more positive [delta][sup 13]C[sub org] values (-28.5 to 29.5%) compared to the laminated shales. Although thermally immature or marginally mature in this core, the laminated shales represent potential source rock s for petroleum because they contain good to excellent quantities of oil-prone organic matter and are more deeply buried in other areas of the basin. Kerogen elemental data and Rock-Eval data suggest that the source of organic matter in the Maquoketa was uniform, with the notable exception of graptolite-rich layers. Distributions of saturated hydrocarbons for Maquoketa samples resemble those derived from amorphous organic matter. Variations in bulk geochemical data and carbon isotopic compositions within the Maquoketa Group indicate substantial reworking and degradation of organic matter associated with bioturbation and oxygenated depositional conditions. 64 refs., 10 figs., 1 tab.

  15. Geochemical Processes Data Package for the Vadose Zone in the Single-Shell Tank Waste Management Areas at the Hanford Site

    SciTech Connect (OSTI)

    Cantrell, Kirk J.; Zachara, John M.; Dresel, P. Evan; Krupka, Kenneth M.; Serne, R. Jeffrey

    2007-09-28

    This data package discusses the geochemistry of vadose zone sediments beneath the single-shell tank farms at the U.S. Department of Energy’s (DOE’s) Hanford Site. The purpose of the report is to provide a review of the most recent and relevant geochemical process information available for the vadose zone beneath the single-shell tank farms and the Integrated Disposal Facility. Two companion reports to this one were recently published which discuss the geology of the farms (Reidel and Chamness 2007) and groundwater flow and contamination beneath the farms (Horton 2007).

  16. Table 5.17 Strategic Petroleum Reserve, 1977-2011 (Thousand Barrels, Except as Noted)

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

    7 Strategic Petroleum Reserve, 1977-2011 (Thousand Barrels, Except as Noted) Year Foreign Crude Oil Receipts Domestic Crude Oil Receipts Withdrawals End-of-Year Stocks Days of Petroleum Net Imports 4 Imported by SPR Imported by Others 1,2 Purchases Exchanges 2 Sales Exchanges Quantity Percent of Crude Oil 3 Stocks Percent of Total Petroleum Stocks 1977 7,540 0 370 [5] 0 0 0 7,455 2.1 0.6 1 1978 58,798 0 0 0 0 0 66,860 17.8 5.2 8 1979 24,434 0 4 0 0 0 91,191 21.2 6.8 11 1980 16,067 0 1,296 0 0 0

  17. A Note on the Fisher Ideal Index Decomposition for Structural Change in Energy Intensity

    SciTech Connect (OSTI)

    Boyd, Gale A.; Roop, Joseph M.

    2004-01-01

    By direct appeal to the theory underlying price index numbers used by the energy decomposition literature, this note proposed the chain weighted Fisher Ideal Index as a formula that solves the ''residual problem;'' i.e., the decomposition is not complete in the sense that the components do not add to the whole. The connection to index number theory also allows us to illustrate that the measures of activity used to define energy intensity need not be additive across the sectors that are involved in the decomposition. We give an empirical example using recent U. S. manufacturing data of the Fisher Ideal Index, compared to the Tornquist Divisia Index, a popular index in the energy literature.

  18. Non-Linear Transmission Line (NLTL) Microwave Source Lecture Notes the United States Particle Accelerator School

    SciTech Connect (OSTI)

    Russell, Steven J.; Carlsten, Bruce E.

    2012-06-26

    We will quickly go through the history of the non-linear transmission lines (NLTLs). We will describe how they work, how they are modeled and how they are designed. Note that the field of high power, NLTL microwave sources is still under development, so this is just a snap shot of their current state. Topics discussed are: (1) Introduction to solitons and the KdV equation; (2) The lumped element non-linear transmission line; (3) Solution of the KdV equation; (4) Non-linear transmission lines at microwave frequencies; (5) Numerical methods for NLTL analysis; (6) Unipolar versus bipolar input; (7) High power NLTL pioneers; (8) Resistive versus reactive load; (9) Non-lineaer dielectrics; and (10) Effect of losses.

  19. EPICS release 3.11 specific documentation -- EPICS release notes for 3.11

    SciTech Connect (OSTI)

    1994-01-19

    EPICS release 3.11 is now ready for user testing. A person who wants to set up a simplified application environment to boot an IOC and create databases using R3.11 should follow the directions in Appendix B, page 27, of the EPICS Source/Release Control Manual, Sept. 20, 1993. The R3.11 EPICS path at ANL/APS is /net/phebos/epics/R3.11 so the command to get the new release is /net/phebos/epics/R3.11/Unix/share/bin/getrel /net/phebos/epics/R3.11. An existing R3.8 short form report can be copied to this new directory and used to create a database. ANL/APS is currently testing an Application Developers Source/Release control system. It is not yet ready for general distribution. Attached are the EPICS R3.11 release notes.

  20. Meeting notes of the High Flux Isotope Reactor (HFIR) futures group

    SciTech Connect (OSTI)

    Houser, M.M.

    1995-08-01

    This report is a compilation of the notes from the ten meetings. The group charter is: (1) to identify and characterize the range of possibilities and necessities for keeping the HFIR operating for at least the next 15 years; (2) to identify and characterize the range of possibilities for enhancing the scientific and technical utility of the HFIR; (3) to evaluate the benefits or impacts of these possibilities on the various scientific fields that use the HFIR or its products; (4) to evaluate the benefits or impacts on the operation and maintenance of the HFIR facility and the regulatory requirements; (5) to estimate the costs, including operating costs, and the schedules, including downtime, for these various possibilities; and one possible impact of proposed changes may be to stimulate increased pressure for a reduced enrichment fuel for HFIR.

  1. D-Zero Central Calorimeter Pressure Vessel and Vacuum Vessel Safety Notes

    SciTech Connect (OSTI)

    Rucinski, R.; Luther, R.; /Fermilab

    1990-10-25

    The relief valve and relief piping capacity was calculated to be 908 sefm air. This exceeds all relieving conditions. The vessel also has a rupture disc with a 2640 scfm air stamped capacity. In order to significantly decrease the amount of time required to fill the cryostats, it is desired to raise the setpoint of the 'operating' relief valve on the argon storage dewar to 20 psig from its existing 16 psig setting. This additional pressure increases the flow to the cryostats and will overwhelm the relief capacity if the temperature of the modules within these vessels is warm enough. Using some conservative assumptions and simple calculations within this note, the maximum average temperature that the modules within each cryostat can be at prior to filling from the storage dewar with liquid argon is at least 290 K. The average temperature of the module mass for any of the three cryostats can be as high as 290 K prior to filling that particular cryostat. This should not be confused with the average temperature of a single type or location which is useful in protecting the modules-not necessarily the vessel itself. A few modules of each type and at different elevations should be used in an average which would account for the different weights of each module. Note that at 290 K, the actual flow of argon through the relief valve and the rupture disk was under the maximum theoretical flows for each relief device. This means that the bulk temperature could actually have been raised to flow argon through the reliefs at their maximum capacity. Therefore, the temperature of 290 K is a conservative value for the calculated flow rate of 12.3 gpm. Safeguards in addition to and used in conjunction with operating procedures shall be implemented in such a way so that the above temperature limitation is not exceeded and such that it is exclusive of the programmable logic controller (PLC). One suggestion is using a toggle switch for each cryostat mounted in the PLC I/O box which

  2. Technical Note: Modeling a complex micro-multileaf collimator using the standard BEAMnrc distribution

    SciTech Connect (OSTI)

    Kairn, T.; Kenny, J.; Crowe, S. B.; Fielding, A. L.; Franich, R. D.; Johnston, P. N.; Knight, R. T.; Langton, C. M.; Schlect, D.; Trapp, J. V.

    2010-04-15

    Purpose: The component modules in the standard BEAMnrc distribution may appear to be insufficient to model micro-multileaf collimators that have trifaceted leaf ends and complex leaf profiles. This note indicates, however, that accurate Monte Carlo simulations of radiotherapy beams defined by a complex collimation device can be completed using BEAMnrc's standard VARMLC component module. Methods: That this simple collimator model can produce spatially and dosimetrically accurate microcollimated fields is illustrated using comparisons with ion chamber and film measurements of the dose deposited by square and irregular fields incident on planar, homogeneous water phantoms. Results: Monte Carlo dose calculations for on-axis and off-axis fields are shown to produce good agreement with experimental values, even on close examination of the penumbrae. Conclusions: The use of a VARMLC model of the micro-multileaf collimator, along with a commissioned model of the associated linear accelerator, is therefore recommended as an alternative to the development or use of in-house or third-party component modules for simulating stereotactic radiotherapy and radiosurgery treatments. Simulation parameters for the VARMLC model are provided which should allow other researchers to adapt and use this model to study clinical stereotactic radiotherapy treatments.

  3. Calculation notes that support accident scenario and consequence of the in-tank fuel fire/deflageration

    SciTech Connect (OSTI)

    Crowe, R.D., Westinghouse Hanford

    1996-09-09

    The purpose of this calculation note is to provide the basis for In-Tank Fuel fire/Deflageration consequence for the Tank Farm Safety Analysis Report (FSAR). Tank Fuel Fire/Deflageration scenario is developed and details and description of the analysis methods are provided.

  4. Calculation notes that support accident scenario and consequence of the in-tank fuel fire/deflagration

    SciTech Connect (OSTI)

    Crowe, R.D.

    1996-09-27

    The purpose of this calculation note is to provide the basis for In-Tank Fuel Fire/Deflageration consequence for the Tank Farm Safety Analysis Report (FSAR). Tank Fuel Fire/Deflageration scenario is developed and details and description of the analysis methods are provided.

  5. Pre-test geological and geochemical evaluation of the Caprock, St. Peter Sandstone and formation fluids, Yakley Field, Pike County, Illinois

    SciTech Connect (OSTI)

    Not Available

    1983-03-01

    The goal of these studies is to ensure long-term stable containment of air in the underground reservoirs used in conjunction with compressed air energy storage (CAES) plants. The specific objective is to develop stability criteria and engineering guidelines for designing CAES reservoirs in each of the three major reservoir types, including aquifers, salt cavities, and mined hard rock caverns. This document characterizes the geologic nature of porous media constituents native to the aquifer field test site near Pittsfield, Illinois. The geologic samples were subjected to geochemical evaluations to determine anticipated responses to cyclic air injection, heating and moisture - conditions typical of an operating CAES reservoir. This report documents the procedures used and results obtained from these analyses.

  6. Groundwater geochemical modeling and simulation of a breached high-level radioactive waste repository in the northern Tularosa Basin, New Mexico

    SciTech Connect (OSTI)

    Chappell, R.W.

    1989-01-01

    The northern Tularosa Basin in south-central New Mexico was ranked favorably as a potential location for a high-level radioactive waste repository by a US Geological Survey pilot screening study of the Basin and Range Province. The favorable ranking was based chiefly on hydrogeologic and descriptive geochemical evidence. A goal of this study was to develop a methodology for predicting the performance of this or any other basin as a potential repository site using geochemical methods. The approach involves first characterizing the groundwater geochemistry, both chemically and isotopically, and reconstructing the probable evolutionary history of, and controls on the ground water chemistry through modeling. In the second phase of the approach, a hypothetically breached repository is introduced into the system, and the mobility of the parent radionuclide, uranium, in the groundwater is predicted. Possible retardation of uranium transport in the downgradient flow direction from the repository by adsorption and mineral precipitation is then considered. The Permian Yeso Formation, the primary aquifer in the northern Tularosa Basin, was selected for study, development and testing of the methodology outlined above. The Yeso Formation contains abundant gypsum and related evaporite minerals, which impart a distinctive chemical signature to the ground water. Ground water data and solubility calculations indicate a conceptual model of irreversible gypsum and dolomite dissolution with concomitant calcite precipitation. Recharge areas are apparent from temperature, {delta}{sup 18}O and {delta}{sup 2} H, and {sup 3}H trends in the aquifer. Corrected {sup 14}C ages range between modern and 31,200 years, and suggest an average ground water velocity of 0.83 m/yr.

  7. Elucidating geochemical response of shallow heterogeneous aquifers to CO2 leakage using high-performance computing: Implications for monitoring of CO2 sequestration

    SciTech Connect (OSTI)

    Navarre-Sitchler, Alexis K.; Maxwell, Reed M.; Siirila, Erica R.; Hammond, Glenn E.; Lichtner, Peter C.

    2013-03-01

    Predicting and quantifying impacts of potential carbon dioxide (CO2) leakage into shallow aquifers that overlie geologic CO2 storage formations is an important part of developing reliable carbon storage techniques. Leakage of CO2 through fractures, faults or faulty wellbores can reduce groundwater pH, inducing geochemical reactions that release solutes into the groundwater and pose a risk of degrading groundwater quality. In order to help quantify this risk, predictions of metal concentrations are needed during geologic storage of CO2. Here, we present regional-scale reactive transport simulations, at relatively fine-scale, of CO2 leakage into shallow aquifers run on the PFLOTRAN platform using high-performance computing. Multiple realizations of heterogeneous permeability distributions were generated using standard geostatistical methods. Increased statistical anisotropy of the permeability field resulted in more lateral and vertical spreading of the plume of impacted water, leading to increased Pb2+ (lead) concentrations and lower pH at a well down gradient of the CO2 leak. Pb2+ concentrations were higher in simulations where calcite was the source of Pb2+ compared to galena. The low solubility of galena effectively buffered the Pb2+ concentrations as galena reached saturation under reducing conditions along the flow path. In all cases, Pb2+ concentrations remained below the maximum contaminant level set by the EPA. Results from this study, compared to natural variability observed in aquifers, suggest that bicarbonate (HCO3) concentrations may be a better geochemical indicator of a CO2 leak under the conditions simulated here.

  8. Evapotranspiration And Geochemical Controls On Groundwater Plumes At Arid Sites: Toward Innovative Alternate End-States For Uranium Processing And Tailings Facilities

    SciTech Connect (OSTI)

    Looney, Brian B.; Denham, Miles E.; Eddy-Dilek, Carol A.; Millings, Margaret R.; Kautsky, Mark

    2014-01-08

    Management of legacy tailings/waste and groundwater contamination are ongoing at the former uranium milling site in Tuba City AZ. The tailings have been consolidated and effectively isolated using an engineered cover system. For the existing groundwater plume, a system of recovery wells extracts contaminated groundwater for treatment using an advanced distillation process. The ten years of pump and treat (P&T) operations have had minimal impact on the contaminant plume – primarily due to geochemical and hydrological limits. A flow net analysis demonstrates that groundwater contamination beneath the former processing site flows in the uppermost portion of the aquifer and exits the groundwater as the plume transits into and beneath a lower terrace in the landscape. The evaluation indicates that contaminated water will not reach Moenkopi Wash, a locally important stream. Instead, shallow groundwater in arid settings such as Tuba City is transferred into the vadose zone and atmosphere via evaporation, transpiration and diffuse seepage. The dissolved constituents are projected to precipitate and accumulate as minerals such as calcite and gypsum in the deep vadose zone (near the capillary fringe), around the roots of phreatophyte plants, and near seeps. The natural hydrologic and geochemical controls common in arid environments such as Tuba City work together to limit the size of the groundwater plume, to naturally attenuate and detoxify groundwater contaminants, and to reduce risks to humans, livestock and the environment. The technical evaluation supports an alternative beneficial reuse (“brownfield”) scenario for Tuba City. This alternative approach would have low risks, similar to the current P&T scenario, but would eliminate the energy and expense associated with the active treatment and convert the former uranium processing site into a resource for future employment of local citizens and ongoing benefit to the Native American Nations.

  9. Proposed Plan for the R-Area Bingham Pump Outage Pits (643-8G, -9G, -10G) and R-Area Unknown Pits No.1, No.2, No.3 (RUNK-1, -2, -3)

    SciTech Connect (OSTI)

    Mundy, S.

    2002-07-31

    The purpose of this proposed plan is to describe the preferred remedial alternative for the R-Area Bingham Pump Outage Pits (R BPOPs) and the R-Area Unknowns (RUNKs) operable unit (OU) and to provide for public involvement in the decision-making process.

  10. Sample Memorandum to Reactivate a Directive Placed on Hold (NOTE: Per Office of Executive Secretariat procedures, please use

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

    Sample Memorandum to Reactivate a Directive Placed on Hold (NOTE: Per Office of Executive Secretariat procedures, please use Calibri, 12 point font for this memorandum.) (Effective April 2014) MEMORANDUM FOR: XXXXXXXXXXXXXXXX ASSOCIATE ADMINISTRATOR FOR MANAGEMENT AND BUDGET THROUGH: INGRID KOLB DIRECTOR, OFFICE OF MANAGEMENT FROM: XXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXX SUBJECT: Request to Reactivate Directive Currently on Hold PURPOSE: The purpose of this memorandum is to request the Directives

  11. Some notes on the calculation of energy-angle correlated distributions with TNG and their representation in File 6 formats

    SciTech Connect (OSTI)

    Larson, D.C.; Fu, C.Y.; Hetrick, D.M.

    1987-01-01

    The model code TNG has been extensively used in evaluation work of structural materials for ENDF/B-VI performed at Oak Ridge National Laboratory. A new aspect of ENDF/B-VI is the use of File 6 formats for energy-angle correlated data. Such data are generally calculated, anchored by experimental data. In this informal note we outline how the TNG results are calculated and entered in the File 6 formats. 4 refs.

  12. Summary Notes from 22 July 2008 Generic Technical Issue Discussion on Long-Term Engineered Cap Performance

    Office of Environmental Management (EM)

    6 Summary Notes from 22 July 2008 Generic Technical Issue Discussion on Long-Term Engineered Cap Performance Attendees: Representatives from the U.S. Department of Energy (DOE)-Headquarters and the U.S. Nuclear Regulatory Commission (NRC) staff met at the DOE offices in Germantown, Maryland on 22 July 2008. Representatives from South Carolina Department of Health and Environmental Control, DOE-Savannah River, and DOE- Office of River Protection participated in the meeting via a teleconference

  13. Drill-hole data, drill-site geology, and geochemical data from the study of Precambrian uraniferous conglomerates of the Medicine Bow Mountains and Sierra Madre of southeastern Wyoming

    SciTech Connect (OSTI)

    Karlstrom, K.E.; Houston, R.S.; Schmidt, T.G.; Inlow, D.; Flurkey, A.J.; Kratochvil, A.L.; Coolidge, C.M.; Sever, C.K.; Quimby, W.F.

    1981-02-01

    This volume is presented as a companion to Volume 1: The Geology and Uranium Potential of Precambrian Conglomerates in the Medicine Bow Mountains and Sierra Madre of Southeastern Wyoming; and to Volume 3: Uranium Assessment for Precambrian Pebble Conglomerates in Southeastern Wyoming. Volume 1 summarized the geologic setting and geologic and geochemical characteristics of uranium-bearing conglomerates in Precambrian metasedimentary rocks of southeastern Wyoming. Volume 3 is a geostatistical resource estimate of U and Th in quartz-pebble conglomerates. This volume contains supporting geochemical data, lithologic logs from 48 drill holes in Precambrian rocks of the Medicine Bow Mountains and Sierra Madre, and drill site geologic maps and cross-sections from most of the holes.

  14. EQ3NR, a computer program for geochemical aqueous speciation-solubility calculations: Theoretical manual, user`s guide, and related documentation (Version 7.0); Part 3

    SciTech Connect (OSTI)

    Wolery, T.J.

    1992-09-14

    EQ3NR is an aqueous solution speciation-solubility modeling code. It is part of the EQ3/6 software package for geochemical modeling. It computes the thermodynamic state of an aqueous solution by determining the distribution of chemical species, including simple ions, ion pairs, and complexes, using standard state thermodynamic data and various equations which describe the thermodynamic activity coefficients of these species. The input to the code describes the aqueous solution in terms of analytical data, including total (analytical) concentrations of dissolved components and such other parameters as the pH, pHCl, Eh, pe, and oxygen fugacity. The input may also include a desired electrical balancing adjustment and various constraints which impose equilibrium with special pure minerals, solid solution end-member components (of specified mole fractions), and gases (of specified fugacities). The code evaluates the degree of disequilibrium in terms of the saturation index (SI = 1og Q/K) and the thermodynamic affinity (A = {minus}2.303 RT log Q/K) for various reactions, such as mineral dissolution or oxidation-reduction in the aqueous solution itself. Individual values of Eh, pe, oxygen fugacity, and Ah (redox affinity) are computed for aqueous redox couples. Equilibrium fugacities are computed for gas species. The code is highly flexible in dealing with various parameters as either model inputs or outputs. The user can specify modification or substitution of equilibrium constants at run time by using options on the input file.

  15. Geochemical and Isotopic Evaluation of Groundwater Movement in Corrective Action Unit 97: Yucca Flat/Climax Mine, Nevada Test Site, Nevada, Rev. No.: 0

    SciTech Connect (OSTI)

    Farnham, Irene

    2006-02-01

    This report describes the results of a comprehensive geochemical evaluation of the groundwater flow system in the Yucca Flat/Climax Mine Corrective Action Unit (CAU). The main objectives of this study are to identify probable pathways for groundwater flow within the study area and to develop constraints on groundwater transit times between selected data collection sites. This work provides an independent means of testing and verifying predictive flow models being developed for this CAU using finite element methods. The Yucca Flat/Climax Mine CAU constitutes the largest of six underground test areas on the Nevada Test Site (NTS) specified for remedial action in the ''Federal Facility Agreement and Consent Order''. A total of 747 underground nuclear detonations were conducted in this CAU. Approximately 23 percent of these detonations were conducted below or near the water table, resulting in groundwater contamination in the vicinity and possibly downgradient of these underground test locations. Therefore, a rigorous evaluation of the groundwater flow system in this CAU is necessary to assess potential long-term risks to the public water supply at downgradient locations.

  16. Sedimentological, mineralogical and geochemical definition of oil-shale facies in the lower Parachute Creek Member of Green River Formation, Colorado

    SciTech Connect (OSTI)

    Cole, R.D.

    1984-04-01

    Sedimentological, mineralogical and geochemical studies of two drill cores penetrating the lower Saline zone of the Parachute Creek Member (middle L-4 oil-shale zone through upper R-2 zone) of the Green River Formation in north-central Piceance Creek basin, Colorado, indicate the presence of two distinct oil-shale facies. The most abundant facies has laminated stratification and frequently occurs in the L-4, L-3 and L-2 oil-shale zones. The second, and subordinate facies, has ''streaked and blebby'' stratification and is most abundant in the R-4, R-3 and R-2 zones. Laminated oil shale originated by slow, regular sedimentation during meromictic phases of ancient Lake Uinta, whereas streaked and blebby oil shale was deposited by episodic, non-channelized turbidity currents. Laminated oil shale has higher contents of nahcolite, dawsonite, quartz, K-feldspar and calcite, but less dolomite/ankerite and albite than streaked and blebby oil shale. Ca-Mg-Fe carbonate minerals in laminated oil shale have more variable compositions than those in streaked and blebby shales. Streaked and blebby oil shale has more kerogen and a greater diversity of kerogen particles than laminated oil shale. Such variations may produce different pyrolysis reactions when each shale type is retorted.

  17. Isotopic and geochemical tracers for U(VI) reduction and U mobility at an in situ recovery U mine

    SciTech Connect (OSTI)

    Basu, Anirban; Brown, Shaun T.; Christensen, John N.; DePaolo, Donald J.; Reimus, Paul W.; Heikoop, Jeffrey M.; Woldegabriel, Giday; Simmons, Ardyth M.; House, Brian M.; Hartmann, Matt; Maher, Kate

    2015-05-19

    In situ recovery (ISR) uranium (U) mining mobilizes U in its oxidized hexavalent form (U(VI)) by oxidative dissolution of U from the roll-front U deposits. Post-mining natural attenuation of residual U(VI) at ISR mines is a potential remediation strategy. Detection and monitoring of naturally occurring reducing subsurface environments are important for successful implementation of this remediation scheme. We used the isotopic tracers ?U/?U (??U), ?U/?U activity ratio, and ?S/S (??S), and geochemical measurements of U ore and groundwater collected from 32 wells located within, upgradient, and downgradient of a roll-front U deposit to detect U(VI) reduction and U mobility at an ISR mining site at Rosita, TX, USA. The ??U in Rosita groundwater varies from 0.61 to -2.49, with a trend toward lower ??U in downgradient wells. The concurrent decrease in U(VI) concentration and ??U with an ? of 0.48 0.08 is indicative of naturally occurring reducing environments conducive to U(VI) reduction. Additionally, characteristic ?U/?U activity ratio and ??S values may also be used to trace the mobility of the ore zone groundwater after mining has ended. These results support the use of U isotope-based detection of natural attenuation of U(VI) at Rosita and other similar ISR mining sites.

  18. Summary Notes from 28 May 2008 Generic Technical Issue Discussion on Estimating Waste Inventory and Waste Tank Characterization

    Office of Environmental Management (EM)

    8, 2008 Page 1 of 8 Summary Notes from 28 May 2008 Generic Technical Issue Discussion on Estimating Waste Inventory and Waste Tank Characterization Attendees: Representatives from Department of Energy-Headquarters (DOE-HQ) and the U.S. Nuclear Regulatory Commission staff (NRC) met at the DOE offices in Germantown, Maryland on 28 May 2008. Representatives from Department of Energy- Savannah River (DOE-SR), Department of Energy-Richland (DOE-RL), and Department of Energy-River Protection (DOE-ORP)

  19. DOE ER63951-3 Final Report: An Integrated Assessment of Geochemical and Community Structure Determinants of Metal Reduction Rates in Subsurface Sediments

    SciTech Connect (OSTI)

    Susan Pfiffner

    2010-06-28

    The objective of this research was to examine the importance of microbial community structure in influencing uranium reduction rates in subsurface sediments. If the redox state alone is the key to metal reduction, then any organisms that can utilize the oxygen and nitrate in the subsurface can change the geochemical conditions so metal reduction becomes an energetically favored reaction. Thus, community structure would not be critical in determining rates or extent of metal reduction unless community structure influenced the rate of change in redox. Alternatively, some microbes may directly catalyze metal reduction (e.g., specifically reduce U). In this case the composition of the community may be more important and specific types of electron donors may promote the production of communities that are more adept at U reduction. Our results helped determine if the type of electron donor or the preexisting community is important in the bioremediation of metal-contaminated environments subjected to biostimulation. In a series of experiments at the DOE FRC site in Oak Ridge we have consistently shown that all substrates promoted nitrate reduction, while glucose, ethanol, and acetate always promoted U reduction. Methanol only occasionally promoted extensive U reduction which is possibly due to community heterogeneity. There appeared to be limitations imposed on the community related to some substrates (e.g. methanol and pyruvate). Membrane lipid analyses (phospholipids and respiratory quinones) indicated different communities depending on electron donor used. Terminal restriction fragment length polymorphism and clone libraries indicated distinct differences among communities even in treatments that promoted U reduction. Thus, there was enough metabolic diversity to accommodate many different electron donors resulting in the U bioimmobilization.

  20. Computed solid phases limiting the concentration of dissolved constituents in basalt aquifers of the Columbia Plateau in eastern Washington. Geochemical modeling and nuclide/rock/groundwater interaction studies

    SciTech Connect (OSTI)

    Deutsch, W.J.; Jenne, E.A.; Krupka, K.M.

    1982-08-01

    A speciation-solubility geochemical model, WATEQ2, was used to analyze geographically-diverse, ground-water samples from the aquifers of the Columbia Plateau basalts in eastern Washington. The ground-water samples compute to be at equilibrium with calcite, which provides both a solubility control for dissolved calcium and a pH buffer. Amorphic ferric hydroxide, Fe(OH)/sub 3/(A), is at saturation or modestly oversaturated in the few water samples with measured redox potentials. Most of the ground-water samples compute to be at equilibrium with amorphic silica (glass) and wairakite, a zeolite, and are saturated to oversaturated with respect to allophane, an amorphic aluminosilicate. The water samples are saturated to undersaturated with halloysite, a clay, and are variably oversaturated with regard to other secondary clay minerals. Equilibrium between the ground water and amorphic silica presumably results from the dissolution of the glassy matrix of the basalt. The oversaturation of the clay minerals other than halloysite indicates that their rate of formation lags the dissolution rate of the basaltic glass. The modeling results indicate that metastable amorphic solids limit the concentration of dissolved silicon and suggest the same possibility for aluminum and iron, and that the processes of dissolution of basaltic glass and formation of metastable secondary minerals are continuing even though the basalts are of Miocene age. The computed solubility relations are found to agree with the known assemblages of alteration minerals in the basalt fractures and vesicles. Because the chemical reactivity of the bedrock will influence the transport of solutes in ground water, the observed solubility equilibria are important factors with regard to chemical-retention processes associated with the possible migration of nuclear waste stored in the earth's crust.

  1. Geochemical orientation survey of stream sediment, stream water, and ground water near uranium prospects, Monticello area, New York. National Uranium Resource Evaluation Program

    SciTech Connect (OSTI)

    Rose, A. W.; Smith, A. T.; Wesolowski, D.

    1982-08-01

    A detailed geochemical test survey has been conducted in a 570 sq km area around six small copper-uranium prospects in sandstones of the Devonian Catskill Formation near Monticello in southern New York state. This report summarizes and interprets the data for about 500 stream sediment samples, 500 stream water samples, and 500 ground water samples, each analyzed for 40 to 50 elements. The groundwater samples furnish distinctive anomalies for uranium, helium, radon, and copper near the mineralized localities, but the samples must be segregated into aquifers in order to obtain continuous well-defined anomalies. Two zones of uranium-rich water (1 to 16 parts per billion) can be recognized on cross sections; the upper zone extends through the known occurrences. The anomalies in uranium and helium are strongest in the deeper parts of the aquifers and are diluted in samples from shallow wells. In stream water, copper and uranium are slightly anomalous, as in an ore factor derived from factor analysis. Ratios of copper, uranium, and zinc to conductivity improve the resolution of anomalies. In stream sediment, extractable uranium, copper, niobium, vanadium, and an ore factor furnish weak anomalies, and ratios of uranium and copper to zinc improve the definition of anomalies. The uranium/thorium ratio is not helpful. Published analyses of rock samples from the nearby stratigraphic section show distinct anomalies in the zone containing the copper-uranium occurrences. This report is being issued without the normal detailed technical and copy editing, to make the data available to the public before the end of the National Uranium Reconnaissance Evaluation program.

  2. User's Guide of TOUGH2-EGS. A Coupled Geomechanical and Reactive Geochemical Simulator for Fluid and Heat Flow in Enhanced Geothermal Systems Version 1.0

    SciTech Connect (OSTI)

    Fakcharoenphol, Perapon; Xiong, Yi; Hu, Litang; Winterfeld, Philip H.; Xu, Tianfu; Wu, Yu-Shu

    2013-05-01

    TOUGH2-EGS is a numerical simulation program coupling geomechanics and chemical reactions for fluid and heat flows in porous media and fractured reservoirs of enhanced geothermal systems. The simulator includes the fully-coupled geomechanical (THM) module, the fully-coupled geochemical (THC) module, and the sequentially coupled reactive geochemistry (THMC) module. The fully-coupled flow-geomechanics model is developed from the linear elastic theory for the thermo-poro-elastic system and is formulated with the mean normal stress as well as pore pressure and temperature. The chemical reaction is sequentially coupled after solution of flow equations, which provides the flow velocity and phase saturation for the solute transport calculation at each time step. In addition, reservoir rock properties, such as porosity and permeability, are subjected to change due to rock deformation and chemical reactions. The relationships between rock properties and geomechanical and chemical effects from poro-elasticity theories and empirical correlations are incorporated into the simulator. This report provides the user with detailed information on both mathematical models and instructions for using TOUGH2-EGS for THM, THC or THMC simulations. The mathematical models include the fluid and heat flow equations, geomechanical equation, reactive geochemistry equations, and discretization methods. Although TOUGH2-EGS has the capability for simulating fluid and heat flows coupled with both geomechanical and chemical effects, it is up to the users to select the specific coupling process, such as THM, THC, or THMC in a simulation. There are several example problems illustrating the applications of this program. These example problems are described in details and their input data are presented. The results demonstrate that this program can be used for field-scale geothermal reservoir simulation with fluid and heat flow, geomechanical effect, and chemical reaction in porous and fractured media.

  3. Isotopic and geochemical tracers for U(VI) reduction and U mobility at an in situ recovery U mine

    SciTech Connect (OSTI)

    Basu, Anirban; Brown, Shaun T.; Christensen, John N.; DePaolo, Donald J.; Reimus, Paul W.; Heikoop, Jeffrey M.; Woldegabriel, Giday; Simmons, Ardyth M.; House, Brian M.; Hartmann, Matt; Maher, Kate

    2015-05-19

    In situ recovery (ISR) uranium (U) mining mobilizes U in its oxidized hexavalent form (U(VI)) by oxidative dissolution of U from the roll-front U deposits. Post-mining natural attenuation of residual U(VI) at ISR mines is a potential remediation strategy. Detection and monitoring of naturally occurring reducing subsurface environments are important for successful implementation of this remediation scheme. We used the isotopic tracers ²³⁸U/²³⁵U (δ²³⁸U), ²³⁴U/²³⁸U activity ratio, and ³⁴S/³²S (δ³⁴S), and geochemical measurements of U ore and groundwater collected from 32 wells located within, upgradient, and downgradient of a roll-front U deposit to detect U(VI) reduction and U mobility at an ISR mining site at Rosita, TX, USA. The δ²³⁸U in Rosita groundwater varies from 0.61‰ to -2.49‰, with a trend toward lower δ²³⁸U in downgradient wells. The concurrent decrease in U(VI) concentration and δ²³⁸U with an ε of 0.48‰ ± 0.08‰ is indicative of naturally occurring reducing environments conducive to U(VI) reduction. Additionally, characteristic ²³⁴U/²³⁸U activity ratio and δ³⁴S values may also be used to trace the mobility of the ore zone groundwater after mining has ended. These results support the use of U isotope-based detection of natural attenuation of U(VI) at Rosita and other similar ISR mining sites.

  4. Geochemical Techniques | Open Energy Information

    Open Energy Info (EERE)

    Geothermometers Multicomponent Geothermometers Silica Geothermometers Thermal Ion Dispersion Thermochronometry References General References Technical References No exploration...

  5. Blind Geothermal System Exploration in Active Volcanic Environments; Multi-phase Geophysical and Geochemical Surveys in Overt and Subtle Volcanic Systems, Hawai’i and Maui

    SciTech Connect (OSTI)

    Fercho, Steven; Owens, Lara; Walsh, Patrick; Drakos, Peter; Martini, Brigette; Lewicki, Jennifer L.; Kennedy, Burton M.

    2015-08-01

    Suites of new geophysical and geochemical exploration surveys were conducted to provide evidence for geothermal resource at the Haleakala Southwest Rift Zone (HSWRZ) on Maui Island, Hawai’i. Ground-based gravity (~400 stations) coupled with heli-bourne magnetics (~1500 line kilometers) define both deep and shallow fractures/faults, while also delineating potentially widespread subsurface hydrothermal alteration on the lower flanks (below approximately 1800 feet a.s.l.). Multi-level, upward continuation calculations and 2-D gravity and magnetic modeling provide information on source depths, but lack of lithologic information leaves ambiguity in the estimates. Additionally, several well-defined gravity lows (possibly vent zones) lie coincident with magnetic highs suggesting the presence of dike intrusions at depth which may represent a potentially young source of heat. Soil CO2 fluxes were measured along transects across geophysically-defined faults and fractures as well as young cinder cones along the HSWRZ. This survey generally did not detect CO2 levels above background, with the exception of a weak anomalous flux signal over one young cinder cone. The general lack of observed CO2 flux signals on the HSWRZ is likely due to a combination of lower magmatic CO2 fluxes and relatively high biogenic surface CO2 fluxes which mix with the magmatic signal. Similar surveys at the Puna geothermal field on the Kilauea Lower East Rift Zone (KLERZ) also showed a lack of surface CO2 flux signals, however aqueous geochemistry indicated contribution of magmatic CO2 and He to shallow groundwater here. As magma has been intercepted in geothermal drilling at the Puna field, the lack of measured surface CO2 flux indicative of upflow of magmatic fluids here is likely due to effective “scrubbing” by high groundwater and a mature hydrothermal system. Dissolved inorganic carbon (DIC) concentrations, δ13C compositions and 3He/4He values were sampled at Maui from several shallow

  6. ENZYME ACTIVITY PROBE AND GEOCHEMICAL ASSESSMENT FOR POTENTIAL AEROBIC COMETABOLISM OF TRICHLOROETHENE IN GROUNDWATER OF THE NORTHWEST PLUME, PADUCAH GASEOUS DIFFUSION PLANT, KENTUCKY

    SciTech Connect (OSTI)

    Looney, B; M. Hope Lee, M; S. K. Hampson, S

    2008-06-27

    The overarching objective of the Paducah Gaseous Diffusion Plant (PGDP) enzyme activity probe (EAP) effort is to determine if aerobic cometabolism is contributing to the attenuation of trichloroethene (TCE) and other chlorinated solvents in the contaminated groundwater beneath PGDP. The site-specific objective for the EAP assessment is to identify if key metabolic pathways are present and expressed in the microbial community--namely the pathways that are responsible for degradation of methane and aromatic (e.g. toluene, benzene, phenol) substrates. The enzymes produced to degrade methane and aromatic compounds also break down TCE through a process known as cometabolism. EAPs directly measure if methane and/or aromatic enzyme production pathways are operating and, for the aromatic pathways, provide an estimate of the number of active organisms in the sampled groundwater. This study in the groundwater plumes at PGDP is a major part of a larger scientific effort being conducted by Interstate Technology and Regulatory Council (ITRC), U.S. Department of Energy (DOE) Office of Environmental Management (EM), Savannah River National Laboratory (SRNL), and North Wind Inc. in which EAPs are being applied to contaminated groundwater from diverse hydrogeologic and plume settings throughout the U.S. to help standardize their application as well as their interpretation. While EAP data provide key information to support the site specific objective for PGDP, several additional lines of evidence are being evaluated to increase confidence in the determination of the occurrence of biodegradation and the rate and sustainability of aerobic cometabolism. These complementary efforts include: (1) Examination of plume flowpaths and comparison of TCE behavior to 'conservative' tracers in the plume (e.g., {sup 99}Tc); (2) Evaluation of geochemical conditions throughout the plume; and (3) Evaluation of stable isotopes in the contaminants and their daughter products throughout the plume. If

  7. Note on gravitational baryogenesis

    SciTech Connect (OSTI)

    Sadjadi, H. Mohseni

    2007-12-15

    The coupling between Ricci scalar curvature and the baryon number current dynamically breaks CPT in an expanding universe and leads to baryon asymmetry. We study the effect of time dependence of the equation of state parameter of the Friedmann-Robertson-Walker universe on this asymmetry.

  8. ALARA notes, Number 8

    SciTech Connect (OSTI)

    Khan, T.A.; Baum, J.W.; Beckman, M.C.

    1993-10-01

    This document contains information dealing with the lessons learned from the experience of nuclear plants. In this issue the authors tried to avoid the `tyranny` of numbers and concentrated on the main lessons learned. Topics include: filtration devices for air pollution abatement, crack repair and inspection, and remote handling equipment.

  9. Meeting Notes and Presentations

    Office of Environmental Management (EM)

    Tele-Conference - February 22, 2010 2 of 2 Approach for Remaining Focus Areas: Robert Murray presented a proposed approach to divide the remaining focus areas into three...

  10. Appendix A Explanatory Notes

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

    August 2016 98 U.S. Energy Information Administration | Natural Gas Monthly Dakota, Ohio, Pennsylvania, Utah, and West Virginia) were added to the EIA-914 data collection and are reported individually. The remaining states/areas (Alabama, Arizona, Federal Offshore Pacific, Florida, Illinois, Indiana, Kentucky, Maryland, Michigan, Mississippi, Missouri, Nebraska, Nevada, New York, Oregon, South Dakota, Tennessee, and Virginia) are grouped in the "Other States" category. The sum of

  11. Appendix A Explanatory Notes

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

  12. Manhattan Project: Potsdam Note

    Office of Scientific and Technical Information (OSTI)

    Potsdam, July 19, 1945 (Truman wrote the above on the back of this). Click on a link below to return to: Espionage and the Manhattan Project, 1940-1945 Library Potsdam and the ...

  13. Notes and Definitions

    Weekly Natural Gas Storage Report (EIA)

    Oklahoma, and Texas Mountain Region Arizona, Colorado, Idaho, Montana, Nebraska, New Mexico, Nevada, North Dakota, South Dakota, Utah, and Wyoming Pacific Region California,...

  14. ARM - Field Notes Article

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

    ... I truly enjoyed writing about the daily field activities, participants' roles, their instruments, and the scientific issues related to the effects of air pollution on climate ...

  15. Table 2.4 Household Energy Consumption by Census Region, Selected Years, 1978-2009 (Quadrillion Btu, Except as Noted)

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

    Household 1 Energy Consumption by Census Region, Selected Years, 1978-2009 (Quadrillion Btu, Except as Noted) Census Region 2 1978 1979 1980 1981 1982 1984 1987 1990 1993 1997 2001 2005 2009 United States Total (does not include wood) 10.56 9.74 9.32 9.29 8.58 9.04 9.13 9.22 10.01 10.25 9.86 10.55 10.18 Natural Gas 5.58 5.31 4.97 5.27 4.74 4.98 4.83 4.86 5.27 5.28 4.84 4.79 4.69 Electricity 3 2.47 2.42 2.48 2.42 2.35 2.48 2.76 3.03 3.28 3.54 3.89 4.35 4.39 Distillate Fuel Oil and Kerosene 2.19

  16. Source: U.S. Energy Information Administration, Form EIA-63B, 'Annual Photovoltaic Cell/Module Shipments Report' Note: Dollars are not

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

    Modules $5,425,417 Total Modules $0.87 Table 2. Value and average value of photovoltaic module shipments, 2014 Module value, total shipments (thousand dollars) Module average value (dollars per peak watt) Source: U.S. Energy Information Administration, Form EIA-63B, 'Annual Photovoltaic Cell/Module Shipments Report' Note: Dollars are not adjusted for inflation.

  17. Microbiological, Geochemical and Hydrologic Processes Controlling Uranium Mobility: An Integrated Field Scale Subsurface Research Challenge Site at Rifle, Colorado, February 2011 to January 2012

    SciTech Connect (OSTI)

    Long, Philip E.; Banfield, Jill; Chandler, Darrell P.; Davis, James A.; Hettich, Bob; VerBerkmoes, Nathan; Jaffe, Peter R.; Kerkhof, Lee J.; Kukkadapu, Ravi K.; Lipton, Mary; Peacock, Aaron; Williams, Kenneth H.; Yabusaki, Steven B.

    2012-02-15

    The Rifle IFRC continued to make excellent progress during the last 12 months. As noted above, a key field experiment (Best Western) was performed during 2011 as a logical follow-on to the Super 8 field experiment preformed in 2010. In the Super 8 experiment, we successfully combined desorption and bioreduction and deployed a number of novel tracer techniques to enhance our ability to interpret the biogeochemistry of the experiment. In the Best Western experiment, we used the same experimental plot (Plot C) as was used for Super 8. The overarching objective of the Best Western field experiment was to compared the impacts of abiotic vs. biotic increases in alkalinity and to assess the mass of the sorbed pool of U(VI) at Rifle at the field scale. Both of these objectives were met. Preliminary analysis of the data indicate that the underlying biogeochemical data sets were obtained that will support a mechanistic understanding of the underlying processes, including remarkable insight into previously unrecognized microbial processes taking place during acetate amendment of the subsurface for a second time.

  18. Developing a robust geochemical and reactive transport model to evaluate possible sources of arsenic at the CO[subscript 2] sequestration natural analog site in Chimayo, New Mexico

    SciTech Connect (OSTI)

    Viswanathan, Hari; Dai, Zhenxue; Lopano, Christina; Keating, Elizabeth; Hakala, J. Alexandra; Scheckel, Kirk G.; Zheng, Liange; Gutherie, George D.; Pawar, Rajesh

    2012-10-24

    Migration of carbon dioxide (CO{sub 2}) from deep storage formations into shallow drinking water aquifers is a possible system failure related to geologic CO{sub 2} sequestration. A CO{sub 2} leak may cause mineral precipitation/dissolution reactions, changes in aqueous speciation, and alteration of pH and redox conditions leading to potential increases of trace metal concentrations above EPA National Primary Drinking Water Standards. In this study, the Chimayo site (NM) was examined for site-specific impacts of shallow groundwater interacting with CO{sub 2} from deep storage formations. Major ion and trace element chemistry for the site have been previously studied. This work focuses on arsenic (As), which is regulated by the EPA under the Safe Drinking Water Act and for which some wells in the Chimayo area have concentrations higher than the maximum contaminant level (MCL). Statistical analysis of the existing Chimayo groundwater data indicates that As is strongly correlated with trace metals U and Pb indicating that their source may be from the same deep subsurface water. Batch experiments and materials characterization, such as: X-ray diffraction (XRD), scanning electron microscopy (SEM), and synchrotron micro X-ray fluorescence ({mu}-XRF), were used to identify As association with Fe-rich phases, such as clays or oxides, in the Chimayo sediments as the major factor controlling As fate in the subsurface. Batch laboratory experiments with Chimayo sediments and groundwater show that pH decreases as CO{sub 2} is introduced into the system and buffered by calcite. The introduction of CO{sub 2} causes an immediate increase in As solution concentration, which then decreases over time. A geochemical model was developed to simulate these batch experiments and successfully predicted the pH drop once CO{sub 2} was introduced into the experiment. In the model, sorption of As to illite, kaolinite and smectite through surface complexation proved to be the key reactions in

  19. Novel imaging techniques, integrated with mineralogical, geochemical and microbiological characterizations to determine the biogeochemical controls on technetium mobility in FRC sediments

    SciTech Connect (OSTI)

    Jonathan R. Lloyd

    2009-02-03

    The objective of this research program was to take a highly multidisciplinary approach to define the biogeochemical factors that control technetium (Tc) mobility in FRC sediments. The aim was to use batch and column studies to probe the biogeochemical conditions that control the mobility of Tc at the FRC. Background sediment samples from Area 2 (pH 6.5, low nitrate, low {sup 99}Tc) and Area 3 (pH 3.5, high nitrate, relatively high {sup 99}Tc) of the FRC were selected (http://www.esd.ornl.gov/nabirfrc). For the batch experiments, sediments were mixed with simulated groundwater, modeled on chemical constituents of FRC waters and supplemented with {sup 99}Tc(VII), both with and without added electron donor (acetate). The solubility of the Tc was monitored, alongside other biogeochemical markers (nitrate, nitrite, Fe(II), sulfate, acetate, pH, Eh) as the 'microcosms' aged. At key points, the microbial communities were also profiled using both cultivation-dependent and molecular techniques, and results correlated with the geochemical conditions in the sediments. The mineral phases present in the sediments were also characterized, and the solid phase associations of the Tc determined using sequential extraction and synchrotron techniques. In addition to the batch sediment experiments, where discrete microbial communities with the potential to reduce and precipitate {sup 99}Tc will be separated in time, we also developed column experiments where biogeochemical processes were spatially separated. Experiments were conducted both with and without amendments proposed to stimulate radionuclide immobilization (e.g. the addition of acetate as an electron donor for metal reduction), and were also planned with and without competing anions at high concentration (e.g. nitrate, with columns containing Area 3 sediments). When the columns had stabilized, as determined by chemical analysis of the effluents, we used a spike of the short-lived gamma emitter {sup 99m}Tc (50-200 MBq; half

  20. Mercury Vapor At Lassen Volcanic National Park Area (Varekamp...

    Open Energy Info (EERE)

    Usefulness useful DOE-funding Unknown References J. C. Varekamp, P. R. Buseck (1983) Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Additional...

  1. Mercury Vapor At Vale Hot Springs Area (Varekamp & Buseck, 1983...

    Open Energy Info (EERE)

    Usefulness useful DOE-funding Unknown References J. C. Varekamp, P. R. Buseck (1983) Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Additional...

  2. Mercury Vapor At Breitenbush Hot Springs Area (Varekamp & Buseck...

    Open Energy Info (EERE)

    Usefulness useful DOE-funding Unknown References J. C. Varekamp, P. R. Buseck (1983) Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Additional...

  3. Mercury Vapor At Mickey Hot Springs Area (Varekamp & Buseck,...

    Open Energy Info (EERE)

    Usefulness useful DOE-funding Unknown References J. C. Varekamp, P. R. Buseck (1983) Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Additional...

  4. Mercury Vapor At Desert Peak Area (Varekamp & Buseck, 1983) ...

    Open Energy Info (EERE)

    Usefulness useful DOE-funding Unknown References J. C. Varekamp, P. R. Buseck (1983) Hg Anomalies In Soils- A Geochemical Exploration Method For Geothermal Areas Additional...

  5. Rock Sampling At Neal Hot Springs Geothermal Area (Colwell, Et...

    Open Energy Info (EERE)

    of Neal Hot Springs and the surrounding areas. This study was conducted by a geophysics field camp from the Colorado School of Mines. Notes Geochemical FingerprintingXRF...

  6. Table 10.6 Solar Thermal Collector Shipments by Type, Price, and Trade, 1974-2009 (Thousand Square Feet, Except as Noted)

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

    Solar Thermal Collector Shipments by Type, Price, and Trade, 1974-2009 (Thousand Square Feet, Except as Noted) Year Low-Temperature Collectors 1 Medium-Temperature Collectors 2 High-Temperature Collectors 3 Total Shipments Trade Number of U.S. Manu- facturers Quantity Shipped Shipments per Manu- facturer Price 4 (dollars 5 per square foot) Number of U.S. Manu- facturers Quantity Shipped Shipments per Manu- facturer Price 4 (dollars 5 per square foot) Quantity Shipped Price 4 (dollars 5 per

  7. Table 8.12a Electric Noncoincident Peak Load and Capacity Margin: Summer Peak Period, 1986-2011 (Megawatts, Except as Noted)

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

    a Electric Noncoincident Peak Load and Capacity Margin: Summer Peak Period, 1986-2011 (Megawatts, Except as Noted) Year Noncoincident Peak Load 1 by North American Electric Reliability Corporation (NERC) 2 Regional Assessment Area Capacity Margin 21 (percent) Eastern Interconnection ERCOT 4 Western Inter- connection All Inter- connections FRCC 5 NPCC 6 Balance of Eastern Region 3 ECAR 7,8 MAAC 8,9 MAIN 8,10 MAPP 11 MISO 12 MRO 13 PJM 14 RFC 8,15 SERC 16 SPP 17 Subtotal TRE 18 WECC 19 Total 20

  8. Summary Notes from 1 November 2007 Generic Technical Issue Discussion on Removal of Highly Radioactive Radionuclides/Key Radionuclides to the Maximum Extent Practical

    Office of Environmental Management (EM)

    Max Total Units *If All Splits, No Rack Units **If Only FW, AC Splits 1000 52 28 28 2000 87 59 35 3000 61 33 15 4000 61 33 15 Totals 261 153 93 ***Costs $1,957,500.00 $1,147,500.00 $697,500.00 Notes: added several refrigerants removed bins from analysis removed R-22 from list 1000lb, no Glycol, CO2 or ammonia Seawater R-404A only * includes seawater units ** no seawater units included *** Costs = (total units) X (estimate of $7500 per unit) 1000lb, air cooled split systems, fresh water Refrig

  9. "FERC423",2005,1,195,"Alabama Power Co",3,"Barry","AL","C",,"Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",358990,22.722,0.6,6.1,209.8

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

    5,1,195,"Alabama Power Co",3,"Barry","AL","C",,"Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",358990,22.722,0.6,6.1,209.8 "FERC423",2005,1,195,"Alabama Power Co",3,"Barry","AL","C",,"Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",45260,22.926,0.59,5.7,196.8

  10. Thermal Gradient Holes At Northern Basin & Range Region (Pritchett...

    Open Energy Info (EERE)

    Date Usefulness not useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  11. Magnetotellurics At Nw Basin & Range Region (Pritchett, 2004...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  12. Direct-Current Resistivity Survey At Northern Basin & Range Region...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  13. Thermal Gradient Holes At Walker-Lane Transitional Zone Region...

    Open Energy Info (EERE)

    Date Usefulness not useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  14. Thermal Gradient Holes At Central Nevada Seismic Zone Region...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  15. Self Potential At Northern Basin & Range Region (Pritchett, 2004...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  16. Thermal Gradient Holes At Nw Basin & Range Region (Pritchett...

    Open Energy Info (EERE)

    Date Usefulness not useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  17. Self Potential At Central Nevada Seismic Zone Region (Pritchett...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  18. Self Potential At Nw Basin & Range Region (Pritchett, 2004) ...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  19. Direct-Current Resistivity Survey At Central Nevada Seismic Zone...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  20. Magnetotellurics At Central Nevada Seismic Zone Region (Pritchett...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  1. Magnetotellurics At Northern Basin & Range Region (Pritchett...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  2. Direct-Current Resistivity Survey At Nw Basin & Range Region...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  3. Self Potential At Walker-Lane Transitional Zone Region (Pritchett...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  4. Magnetotellurics At Walker-Lane Transitional Zone Region (Pritchett...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  5. Direct-Current Resistivity Survey At Walker-Lane Transitional...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  6. Direct-Current Resistivity At Central Nevada Seismic Zone Region...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  7. Aeromagnetic Survey At Kawaihae Area (Thomas, 1986) | Open Energy...

    Open Energy Info (EERE)

    Kawaihae Area Exploration Technique Aeromagnetic Survey Activity Date Usefulness useful DOE-funding Unknown Notes The aeromagnetic data noted above refer to a low-level...

  8. Explanatory Notes Explanatory Notes The EIA-782 Surveys Background

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

    data at a State level on 14 petroleum products for various retail and wholesale marketing categories. The Form EIA-782B collects resellerretailer monthly price and volume...

  9. PIC Transcribed Flip Chart Notes

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

    funding Page 2 SOS Meetings (continued) 3. Location: a. Portland (Hanford Watch, ODOE, PSR, CRK) b. Seattle (Hanford Challenge) c. Hood River (CRK) d. Tri-Cities (LOWV) Page 3...

  10. OTS NOTE DATE: TO: FROM:

    Office of Legacy Management (LM)

    The data sheets report the results of radiological monitoring conducted during operation of an oil- cooled drillinghollowing machine. The sheets record measurements during five ...

  11. Sierra Structural Dynamics User's Notes

    SciTech Connect (OSTI)

    Reese, Garth M.

    2015-10-19

    Sierra/SD provides a massively parallel implementation of structural dynamics finite element analysis, required for high fidelity, validated models used in modal, vibration, static and shock analysis of weapons systems. This document provides a users guide to the input for Sierra/SD. Details of input specifications for the different solution types, output options, element types and parameters are included. The appendices contain detailed examples, and instructions for running the software on parallel platforms.

  12. Manhattan Project: Sources and Notes

    Office of Scientific and Technical Information (OSTI)

    this web site. For a discussion of the most important works on the Manhattan Project, see the "Suggested Readings." For a general discussion of the use of sources in this web site, ...

  13. Note on quantum Minkowski space

    SciTech Connect (OSTI)

    Bentalha, Z.; Tahiri, M.

    2008-09-15

    In this work, some interesting details about quantum Minkowski space and quantum Lorentz group structures are revealed. The task is accomplished by generalizing an approach adopted in a previous work where quantum rotation group and quantum Euclidean space structures have been investigated. The generalized method is based on a mapping relating the q-spinors (precisely the tensor product of dotted and undotted fondamental q-spinors) to Minkowski q-vectors. As a result of this mapping, the quantum analog of Minkowski space is constructed (with a definite metric). Also, the matrix representation of the quantum Lorentz group is determined together with its corresponding q-deformed orthogonality relation.

  14. Company Level Imports Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    American Natural Gas Markets: Not Quite Out of the Woods June 2013 Katherine Spector - Head of Commodities Strategy CIBC Worlds Markets katherine.spector@cibc.com K. Spector - June 2013 2 North American Natural Gas Marginally Supportive in 2013... But Not Out of the Woods K. Spector - June 2013 3 Not Out Of The Woods Yet... * The US gas balance looks more price supportive in 2013, but in the short-run (12-24 months) both gas supply and gas demand are still very price elastic. That means

  15. MICROBOONE-NOTE-1017-PUB

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

    7-PUB v1.0 A Method to Extract the Charge Distribution Arriving at the TPC Wire Planes in MicroBooNE The MicroBooNE Collaboration (Dated: June 29, 2016) In this technote, we describe the concept and general strategy of LArTPC drifted-charge extraction, which converts the raw digitized TPC waveform to the number of ionized electrons passing through the wire plane at a given time. The proper recovery of the number of ionized electrons from all wire planes is important to the success of the

  16. SA TEC Meeting Notes -- Final

    Office of Environmental Management (EM)

    February 6-7, 2008 San Antonio, Texas U.S DEPARTMENT OF ENERGY TRANSPORTATION EXTERNAL COORDINATION WORKING GROUP MEETING February 6-7, 2008 San Antonio, Texas Welcome and Meeting Overview The U.S. Department of Energy (DOE), Transportation External Coordination (TEC) Working Group held its 29th meeting on February 6-7, 2008, in San Antonio, Texas. One hundred thirty- one participants from government, industry, professional organizations, and other interested parties met to address a variety of

  17. Attachment1-Notes110211.pdf

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

  18. Booster double harmonic setup notes

    SciTech Connect (OSTI)

    Gardner, C. J.

    2015-02-17

    The motivation behind implementing a booster double harmonic include the reduced transverse space charge force from a reduced peak beam current and reduced momentum spread of the beam, both of which can be achieved from flattening the RF bucket. RF capture and acceleration of polarized protons (PP) is first set up in the single harmonic mode with RF harmonic h=1. Once capture and acceleration have been set up in the single harmonic mode, the second harmonic system is brought on and programmed to operate in concert with the single harmonic system.

  19. Natural bacterial communities serve as quantitative geochemical...

    Office of Scientific and Technical Information (OSTI)

    approach to identify sites contaminated with hydrocarbons from the Deepwater Horizon oil spill, finding that altered bacterial communities encode a memory of prior...

  20. Interface Induced Carbonate Mineralization: A Fundamental Geochemical...

    Office of Scientific and Technical Information (OSTI)

    fundamental barrier, other than cation hydration, exists that prevents Mgsup 2+ and ... of water give us a first direct proof to support and quantify the cation hydration effect. ...

  1. Precipitation in Pores: A Geochemical Frontier

    SciTech Connect (OSTI)

    Stack, Andrew G.

    2015-01-01

    This article's purpose is to review some of the recent research in which geochemists have examined precipitation of solid phases in porous media, particularly in pores a few nanometers in diameter (nanopores). While this is a “review,” it is actually more forward-looking in that the list of things about this phenomenon that we do not know or cannot control at this time is likely longer than what we do know and can control. For example, there are three directly contradictory theories on how to predict how precipitation proceeds in a medium of varying pore size, as will be discussed below. The confusion on this subject likely stems from the complexity of the phenomenon itself: One can easily clog a porous medium by inducing a rapid, homogeneous precipitation directly from solution, or have limited precipitation occur that does not affect permeability or even porosity substantially. It is more difficult to engineer mineral precipitation in order to obtain a specific outcome, such as filling all available pore space over a targeted area for the purposes of contaminant sequestration. However, breakthrough discoveries could occur in the next five to ten years that enhance our ability to predict robustly and finely control precipitation in porous media by understanding how porosity and permeability evolve in response to system perturbations. These discoveries will likely stem (at least in part) from advances in our ability to 1) perform and interpret X-ray/neutron scattering experiments that reveal the extent of precipitation and its locales within porous media (Anovitz and Cole 2015, this volume), and 2) utilize increasingly powerful simulations to test concepts and models about the evolution of porosity and permeability as precipitation occurs (Steefel et al. 2015, this volume). A further important technique to isolate specific phenomena and understand reactivity is also microfluidics cell experiments that allow specific control of flow paths and fluid velocities (Yoon et al. 2012). An improved ability to synthesize idealized porous media will allow for tailored control of pore distributions, mineralogy and will allow more reproducible results. This in turn may allow us to isolate specific processes without the competing and obfuscatory effects that hinder generalization of observations when working with solely natural samples. It is likely that no one single experiment, or simulation technique will provide the key discoveries: to make substantive progress will require a collaborative effort to understand the interplay between fluid transport and geochemistry. Finally, where rock fracturing and elevated pressures are of concern, an understanding and capability to model geomechanical properties are necessary (Scherer 1999).

  2. Geochemical, Genetic, and Community Controls on Mercury

    SciTech Connect (OSTI)

    Wall, Judy D.

    2014-11-10

    The sulfate-reducing bacteria (SRB) are soil bacteria that share two common characteristics, strict anaerobiosis and the ability to respire sulfate. The metabolic activities of these bacteria play significant roles in the global sulfur cycle, anaerobic degradation of biomass, biological metal corrosion in the environment and, recently, degradation of toxic compounds. The accumulation of evidence suggests these bacteria are also key to the production of the neurotoxin methylmercury in environmental settings. We propose to use our experience with the development of genetics in sulfate-reducing bacteria of the genus Desulfovibrio to create mutations that will eliminate the methylation of mercury, thereby identifying the genes essential for this process. This information may allow the environmental monitoring of the mercury methylation potential to learn the location and quantity of the production this toxin. From these data, more accurate predictive models of mercury cycling can be generated.

  3. Precipitation in pores: A geochemical frontier

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

    Stack, Andrew G.

    2015-07-29

    This article's purpose is to review some of the recent research in which geochemists have examined precipitation of solid phases in porous media, particularly in pores a few nanometers in diameter (nanopores). While this is a “review,” it is actually more forward-looking in that the list of things about this phenomenon that we do not know or cannot control at this time is likely longer than what we do know and can control. For example, there are three directly contradictory theories on how to predict how precipitation proceeds in a medium of varying pore size, as will be discussed below.more » The confusion on this subject likely stems from the complexity of the phenomenon itself: One can easily clog a porous medium by inducing a rapid, homogeneous precipitation directly from solution, or have limited precipitation occur that does not affect permeability or even porosity substantially. It is more difficult to engineer mineral precipitation in order to obtain a specific outcome, such as filling all available pore space over a targeted area for the purposes of contaminant sequestration. However, breakthrough discoveries could occur in the next five to ten years that enhance our ability to predict robustly and finely control precipitation in porous media by understanding how porosity and permeability evolve in response to system perturbations. These discoveries will likely stem (at least in part) from advances in our ability to 1) perform and interpret X-ray/neutron scattering experiments that reveal the extent of precipitation and its locales within porous media (Anovitz and Cole 2015, this volume), and 2) utilize increasingly powerful simulations to test concepts and models about the evolution of porosity and permeability as precipitation occurs (Steefel et al. 2015, this volume). A further important technique to isolate specific phenomena and understand reactivity is also microfluidics cell experiments that allow specific control of flow paths and fluid velocities (Yoon et al. 2012). An improved ability to synthesize idealized porous media will allow for tailored control of pore distributions, mineralogy and will allow more reproducible results. This in turn may allow us to isolate specific processes without the competing and obfuscatory effects that hinder generalization of observations when working with solely natural samples. It is likely that no one single experiment, or simulation technique will provide the key discoveries: to make substantive progress will require a collaborative effort to understand the interplay between fluid transport and geochemistry. Finally, where rock fracturing and elevated pressures are of concern, an understanding and capability to model geomechanical properties are necessary (Scherer 1999).« less

  4. Interface Induced Carbonate Mineralization: A Fundamental Geochemical...

    Office of Scientific and Technical Information (OSTI)

    Authors: Teng, H. Henry 1 ; Xu, Huifang 2 + Show Author Affiliations PI, The George Washington University PI, The George Washington University Co-PI, University of ...

  5. Interface Induced Carbonate Mineralization: A Fundamental Geochemical...

    Office of Scientific and Technical Information (OSTI)

    On the other hand, the measured higher distribution coefficients of Mg between magnesian calcites formed in the absence and presence of water give us a first direct proof to ...

  6. Natural bacterial communities serve as quantitative geochemical...

    Office of Scientific and Technical Information (OSTI)

    that respond to and capture perturbations caused by human impacts. less Authors: Smith, Mark B. 1 ; Rocha, Andrea M. 2 ; Smillie, Chris S. 1 ; Olesen, Scott W. 1 ;...

  7. Nanogeochemistry: Geochemical reactions and mass transfers in...

    Office of Scientific and Technical Information (OSTI)

    ...een-Prokaryotic-and-Eukaryotic-Cellsslide2150310 Sandia National Laboratories ... (80 m2g) in fault gouge accounting for >50% energy consumed in earthquake http:...

  8. Discovering a previously unknown mechanism that halts solar eruptions...

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

    ... and a "potential magnetic field" like the ones that enclose the rope in the solar corona. Potential magnetic field This potential magnetic field is composed of magnetic ...

  9. Methods for characterizing, classifying, and identifying unknowns in samples

    DOE Patents [OSTI]

    Grate, Jay W [West Richland, WA; Wise, Barry M [Manson, WA

    2002-01-01

    Disclosed is a method for taking the data generated from an array of responses from a multichannel instrument, and determining the characteristics of a chemical in the sample without the necessity of calibrating or training the instrument with known samples containing the same chemical. The characteristics determined by the method are then used to classify and identify the chemical in the sample. The method can also be used to quantify the concentration of the chemical in the sample.

  10. Methods for characterizing, classifying, and identifying unknowns in samples

    DOE Patents [OSTI]

    Grate, Jay W.; Wise, Barry M.

    2003-08-12

    Disclosed is a method for taking the data generated from an array of responses from a multichannel instrument, and determining the characteristics of a chemical in the sample without the necessity of calibrating or training the instrument with known samples containing the same chemical. The characteristics determined by the method are then used to classify and identify the chemical in the sample. The method can also be used to quantify the concentration of the chemical in the sample.

  11. Property:Plants with Unknown Planned Capacity | Open Energy Informatio...

    Open Energy Info (EERE)

    Colorado Plateau Geothermal Region + 0 + Southern Rockies Geothermal Region + 0 + T Transition Zone Geothermal Region + 1 + W Walker-Lane Transition Zone Geothermal Region + 0 + Y...

  12. Microbes in Thawing Permafrost: The Unknown Variable in the Climate...

    Office of Scientific and Technical Information (OSTI)

    has been continuously frozen for at least 2 years), our understanding of the diversity of microbial life in this extreme habitat is surprisingly limited. Taking into account the...

  13. Microbes in thawing permafrost: the unknown variable in the climate...

    Office of Scientific and Technical Information (OSTI)

    and Biological Problems in Soil Science, Russian Academy of Sciences U.S. Department of Energy, Joint Genome Institute Bob L ORNL Alfred Wegener Institute for Polar and Marine...

  14. Technical Note: Phantom study to evaluate the dose and image quality effects of a computed tomography organ-based tube current modulation technique

    SciTech Connect (OSTI)

    Gandhi, Diksha; Schmidt, Taly Gilat; Crotty, Dominic J.; Stevens, Grant M.

    2015-11-15

    Purpose: This technical note quantifies the dose and image quality performance of a clinically available organ-dose-based tube current modulation (ODM) technique, using experimental and simulation phantom studies. The investigated ODM implementation reduces the tube current for the anterior source positions, without increasing current for posterior positions, although such an approach was also evaluated for comparison. Methods: Axial CT scans at 120 kV were performed on head and chest phantoms on an ODM-equipped scanner (Optima CT660, GE Healthcare, Chalfont St. Giles, England). Dosimeters quantified dose to breast, lung, heart, spine, eye lens, and brain regions for ODM and 3D-modulation (SmartmA) settings. Monte Carlo simulations, validated with experimental data, were performed on 28 voxelized head phantoms and 10 chest phantoms to quantify organ dose and noise standard deviation. The dose and noise effects of increasing the posterior tube current were also investigated. Results: ODM reduced the dose for all experimental dosimeters with respect to SmartmA, with average dose reductions across dosimeters of 31% (breast), 21% (lung), 24% (heart), 6% (spine), 19% (eye lens), and 11% (brain), with similar results for the simulation validation study. In the phantom library study, the average dose reduction across all phantoms was 34% (breast), 20% (lung), 8% (spine), 20% (eye lens), and 8% (brain). ODM increased the noise standard deviation in reconstructed images by 6%–20%, with generally greater noise increases in anterior regions. Increasing the posterior tube current provided similar dose reduction as ODM for breast and eye lens, increased dose to the spine, with noise effects ranging from 2% noise reduction to 16% noise increase. At noise equal to SmartmA, ODM increased the estimated effective dose by 4% and 8% for chest and head scans, respectively. Increasing the posterior tube current further increased the effective dose by 15% (chest) and 18% (head

  15. "Source: U.S. Energy Information Administration, Form EIA-63B, 'Annual Photovoltaic Cell/Module Shipments Report.' Note: Includes both U.S. Shipments and Exports."

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

    Annual photovoltaic module shipments, 2004-2014 (peak kilowatts)" "Year","Modules" 2004,143274 2005,204996 2006,320208 2007,494148 2008,920693 2009,1188879 2010,2644498 2011,3772075 2012,4655005 2013,4984881 2014,6237524 "Source: U.S. Energy Information Administration, Form EIA-63B, 'Annual Photovoltaic Cell/Module Shipments Report.' Note: Includes both U.S. Shipments and Exports.

  16. "FERC423",2006,1,195,"Alabama Power Co",3,"Barry","AL","C",,"Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",273020,22.846,0.62,6.4,192.4

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

    6,1,195,"Alabama Power Co",3,"Barry","AL","C",,"Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",273020,22.846,0.62,6.4,192.4 "FERC423",2006,1,195,"Alabama Power Co",3,"Barry","AL","I",,"Gas","NG",,,,,,"BAY GAS PIPELINE",597198,1.053,0,0,1185.7 "FERC423",2006,1,195,"Alabama Power

  17. ," Excise"," LUST Fee ",," Total",," Excise"," LUST Fee ",," Total",,"Notes"

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

    Federal and state motor fuels taxes[1] " ," Gasoline ",,,,," Diesel" ," Excise"," LUST Fee ",," Total",," Excise"," LUST Fee ",," Total",,"Notes" "Federal",0.183,0.001,,0.184,,0.243,0.001,,0.244,,"Leaking Underground Storage Tank (LUST) fee: $0.001/gal. " ," Gasoline ",,,,," Diesel" ,"State tax","Other taxes & Fees[2] ","Total

  18. "Note: All Others includes Cambodia, Czech Republic, Hong Kong, Malaysia, Mexico, Netherlands, Philippines, Singapore, Taiwan and Turkey Source: U.S. Energy Information Administration, Form EIA-63B, 'Annual Photovoltaic Cell/Module Shipments Report.'"

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

    . Photovoltaic module import shipments by country, 2014" "(peak kilowatts)" "Country","Total","Percent of U.S. total" "Canada",61078,0.01 "China",3323297,0.57 "Germany",154800,0.03 "Japan",12593,0 "India",47192,0.01 "South Korea",251105,0.04 "All Others",2008612,0.34 "Total",5858677,1 "Note: All Others includes Cambodia, Czech Republic, Hong Kong, Malaysia, Mexico,

  19. "FERC423",2007,1,195,"Alabama Power Co",3,"Barry","AL","C","application/vnd.ms-excel","Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",289050,22.732,0.5,5.2,217.3

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

    7,1,195,"Alabama Power Co",3,"Barry","AL","C","application/vnd.ms-excel","Coal","BIT",45,"IM","SU","County Unknown",999,"MINA PRIBBENOW",289050,22.732,0.5,5.2,217.3 "FERC423",2007,1,195,"Alabama Power Co",3,"Barry","AL","C","application/vnd.ms-excel","Coal","BIT",45,"IM","SU","County

  20. Flat-Panel Cone-Beam Ct-Guided Radiofrequency Ablation of Very Small (≤1.5 cm) Liver Tumors: Technical Note on a Preliminary Experience

    SciTech Connect (OSTI)

    Cazzato, Roberto Luigi Buy, Xavier Alberti, Nicolas Fonck, Mariane; Grasso, Rosario Francesco; Palussière, Jean

    2015-02-15

    PurposeThe aim of the present study was to investigate the technical feasibility of flat-panel cone-beam CT (CBCT)-guided radiofrequency ablation (RFA) of very small (<1.5 cm) liver tumors.Materials and MethodsPatients included were candidates for hepatic percutaneous RFA as they had single biopsy-proven hepatic tumors sized ≤1.5 cm and poorly defined on ultrasonography. Following apnea induction, unenhanced CBCT scans were acquired and used to deploy the RF electrode with the aid of a virtual navigation system. If the tumor was not clearly identified on the unenhanced CBCT scan, a right retrograde arterial femoral access was established to carry out hepatic angiography and localize the tumor. Patients’ lesions and procedural variables were recorded and analyzed.ResultsThree patients (2 male and 1 female), aged 68, 76, and 87 years were included; 3 lesions (2 hepato-cellular carcinoma and 1 metastasis from colorectal cancer) were treated. One patient required hepatic angiography. Cycles of apnea used to acquire CBCT images and to deploy the electrode lasted <120 s. Mean fluoroscopic time needed to deploy the electrode was 36.6 ± 5.7 min. Mean overall procedural time was 66.0 ± 22.9 min. No peri- or post-procedural complications were noted. No cases of incomplete ablation were noted at 1-month follow-up.ConclusionPercutaneous CBCT-guided liver RFA with or without arterial hepatic angiography is technically feasible.

  1. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Residential Consumption Gas used in private dwellings, including apartments, for heating, air-conditioning, cooking, water heating, and other household uses. Sales Consumers ...

  2. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Residential Price The price of gas used in private dwellings, including apartments, for heating, cooking, water heating, and other household uses. For definitions of related energy ...

  3. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Consumption by End Use Definitions Key Terms Definition Commercial Consumption Gas used by ... Electric Power Sector An energy-consuming sector that consists of electricity-only and ...

  4. LLW Notes, Volume 12, Number 4

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Gedden, R.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-04-01

    Contents include articles entitled: Texas Authority`s funding pending before conference committee: Auditor`s report favors authority; Revisions likely for Illinois siting law; Midwest Compact votes on Ohio fundings: Less approved than requested; Walter Sturgeon named executive director of North Carolina authority; New forum participant for Massachusetts; CRCPD holds fifth workshop for LLRW regulators; DOD generators hold annual meeting; State legislators` LLRW working group meets; NRC Chairman Jackson responds to proposal to amend the Policy Act; US Ecology uses to recover costs and lost profits and/or to compel Ward Valley land transfer; New suit against Envirocare and others alleges unlawful business practices; Federal court finds line-item veto unconstitutional; States/utilities seek to escrow nuclear waste payments; High-level waste bill passes Senate; NRC releases decommissioning rule; EPA Region VI re La Paz Agreement; EPA, NRC debate NRC`s decommissioning rule: No progress re approaches to risk harmonization; and Mousseau heads DOE`s national low-level waste management program.

  5. DRAFT PROPOSAL AND NOTES 6/14

    National Nuclear Security Administration (NNSA)

    Tunnel PLA 10-01-12 thru 09-30-17 Page 1 of 57 CONSTRUCTION TUNNEL AND TUNNEL-SHAFT PROJECT LABOR AGREEMENT FOR THE NEVADA NATIONAL SECURITY SITE (NNSS) between NATIONAL SECURITY TECHNOLOGIES LLC (NSTec) and LABORERS' INTERNATIONAL UNION OF NORTH AMERICA, LOCAL UNION NO. 872 October 1, 2012 through September 30, 2017 Tunnel PLA 10-01-12 thru 09-30-17 Page 2 of 57 TABLE OF CONTENTS 1. PREAMBLE

  6. Table Definitions, Sources, and Explanatory Notes

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

    and remains liquid at atmospheric pressure after passing through surface separating facilities. Depending upon the characteristics of the crude stream, it may also include: Small...

  7. ATLAS note ATL-COM-PHYS-2009.

    SciTech Connect (OSTI)

    Chekanov, S.; Boomsma, J.; High Energy Physics

    2009-12-22

    The program InvMass has been developed to perform a general model-independent search for new particles using the ATLAS detector at the Large Hadron Collider (LHC), a proton-proton collider at CERN. The search is performed by examining statistically significant variations from the Standard Model predictions in exclusive event classes classified according to the number of identified objects. The program, called InvMass, finds all relevant particle groups identified with the ATLAS detector and analyzes their production rates, invariant masses and the total transverse momenta. The generic code of InvMass can easily be adapted for any particle types identified with the ATLAS detector. Several benchmark tests are presented.

  8. Property:CompletionNotes | Open Energy Information

    Open Energy Info (EERE)

    eset-345kv-transmission-line-project-north B BLM-NV-WN-ES-08-01-1310, NV-020-08-01 + 82: Data reviewed for completion Barren Ridge Renewable Transmission + LADWP Project Website:...

  9. Note: Multi-point measurement of...

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

    the diagnostic neu- tral beam (DNB). The primary enhancement of the spectral recording component of the new MSE diagnostic came from im- plementation of a modern CCD array...

  10. LLW Notes, Volume 12, Number 6

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Gedden, R.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-07-01

    Contents include articles entitled: GAO concludes most Ward Valley SEIS issues previously addressed; Midwest compact halts facility development; Texas publishes proposal to issue WCS radioactive materials license; Central Compact issues export authorizations over NE`s objection; Nebraska governor to host LLRW summit; California regulators reassured re US ecology facility in WA; Southeast Compact augments funding for North Carolina; State and compact calendar of events; IAEA Director General to UN: reexamine nuclear power; DOI convenes meetings on Ward Valley Title VI complaint; California BLM: Tribes fully represented and consulted; MW, NE, and SW file amici curiae briefs in Ward Valley suit; Court denies state`s motion for protective order; WCS files suit against Envirocare and others; States attack DOE`s claim re lack of authority to store spent fuel; House committee passes Texas legislation; Ward Valley land transfer bill introduced in Senate; Senate committee holds hearing on Ward Valley legislation and related GAO report; NRDC threatens to sue DOE re Envirocare; NRC chair criticizes Deputy Interior Secretary`s use of Ward Valley fact sheet; Utility consortium submits license application for storage on Goshute land to NRC; Envirocare cited for SNM violation; EPA begins audit; and EPA rejects Title VI claim re Texas site.

  11. LLW Notes, Volume 12, Number 5

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Gedden, R.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-06-01

    Contents include articles entitled: USGS report supports previous conclusions re tritium migration at Beatty; Ohio selects new contractor for screening; Maine Yankee`s future uncertain; Southeast Compact limits funds for North Carolina project; California, Energy, and Interior exchange correspondence on Ward Valley testing; TCC meets in Salt Lake City, Utah; Garner named executive director and forum participant for Northwest Compact; Seventh Circuit upholds Energy Secretary`s determination re distribution of surcharge rebates; US Ecology sues Nebraska re wetlands mitigation; US Supreme Court hears line-item veto challenge; Court rules NAS must provide public access; WCS sues Envirocare of Texas; DOE and Envirocare sign consent agreement; NRC issues performance assessment guidance; NRC to publish final decommissioning rule; House subcommittee passes Texas Consent Act; Environmental justice bill introduced in the House; and International nuclear safety body established.

  12. Explanatory notes for research cell efficiency records

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

    60904-3 edition 2 or ASTM G173. The reference temperature is 25C and the area is the cell total area or the area defined by an aperture. Cell efficiency results are provided...

  13. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    as sulfur and various metals; Drip gases, and liquid hydrocarbons produced from tar sands, gilsonite, and oil shale. Liquids produced at natural gas processing plants are excluded. ...

  14. LLW Notes supplement, Volume 12, Number 6

    SciTech Connect (OSTI)

    1997-07-01

    Contents include articles related to environmental justice concerns and Title VI, entitled as follows: Civil Rights Act of 1964; Exec order on environmental justice; Applicability to states; Philosophical differences -- Environmental justice and Title VI; Ambiguities in existing Title VI guidance; Clarification of existing Title VI guidance; Federal financial assistance; Administrative complaints vs. lawsuits; Effect and disparate impact; Termination, suspension or refusal to grant federal financial assistance; DOJ guidance defines environmental justice; NEJAC meets, adopts far-reaching resolution re siting; Indigenous Peoples Resolution No. 23; and States meet, support environmental justice concept and express concerns about federal approach and composition of NEJAC.

  15. LLW Notes, Volume 12, Number 2

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Colsant, J.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-02-01

    Contents include the following articles: National Environmental Justice Advisory Council considers Ward Valley resolution; NGA urges Congressional and Presidential support for low-level radioactive waste compacts and transfer of federal land in Ward Valley; RFP issued for SEIS on Ward Valley land transfer; Illinois siting criteria finalized; Consideration of tribal concerns during Ward Valley siting process; State legislators` LLRW working group meets in D.C.; Upcoming state and compact events; Court calendar; Texas compact legislation introduced in Congress; Superfund reform is a priority for 105th Congress; High-level waste bill gets off to an early start; Fort Mojave petition NEJAC for Ward Valley resolution; EPA withdraws cleanup rule from OMB; Board ruling raises doubts about proposed Louisiana enrichment facility; DOE recommends external regulation by NRC; and Supplement--Background on environmental justice.

  16. Table Definitions, Sources, and Explanatory Notes

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

    Also refers to a company operating such facilities. CNG CNG Compressed Natural Gas: Natural gas compressed to a pressure at or above 200-248 bar (i.e., 2900-3600 pounds per ...

  17. DRAFT PROPOSAL AND NOTES 6/14

    National Nuclear Security Administration (NNSA)

    ... North Las Vegas Facility (NLV), Tonopah Test Range (TTR), Yucca Mountain Project (YMP) ... five (5) hours if directed to the Tonopah Test Range, unless the applicant is not able to ...

  18. LLW Notes: Volume 10, Number 3

    SciTech Connect (OSTI)

    1995-04-01

    The Low-Level Radioactive Waste Forum is an association of state and compact representatives, appointed by governors and compact commissions, established to facilitate state and compact implementation of the Low-Level Radioactive Waste Policy Act of 1980 and the Low-Level Radioactive Waste Policy Amendments Act of 1985 and to promote the objectives of low-level radioactive waste regional compacts. The LLW Forum provides an opportunity for state and compact officials to share information with one another and to exchange views with officials of federal agencies and other interested parties.

  19. LLW Notes, Volume 12, Number 7

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Gedden, R.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-09-01

    Contents include articles entitled: House votes 309 to 107 to approve Texas compact; Nebraska governor hosts LLRW meeting; Southeast Compact considers funding proposal; Chem-Nuclear explores options re SC revenue requirements; Legislation sets revenue requirements for Barnwell; TCC meets: Supports CA request for technical assistance; DOE approves part of California`s technical assistance request; State legislators discuss LLRW management for OH, IL, NC; Washington governor re Potential New Hanford Role; Federal court enjoins DOE from excluding WCS on new disposal; Appellate court in favor of DOE in surcharge rebates dispute; Hearing set for October in Ward Valley case; court rejects federal motion to dismiss Ward Valley suit; NE sues commission re veto over export authorizations; US Supreme Court dismisses line-item veto challenge; Department of Interior Inspector General investigation requested; USEC privatization plan approved; DOD finalizes LLRW disposal charter; Clinton nominates six DOE appointees; Congress moves FUSRAP to Army Corps of Engineers; Schaefer named interim director of USGS: Nichols leaves EPA: NRC Commissioner Rogers` term expires; NRC: CA ``Well-Quantified`` to license Ward Valley facility; EPA objects to state permit for Louisiana facility; Petitions submitted to EPA oppose Shintech permits; ECOS draft recommendations re Enviro programs; Legislation introduced to prohibit spent fuel shipments to the Goshutes; and HLW legislation ready for floor action.

  20. LLW Notes, Volume 12, Number 1

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Colsant, J.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-01-01

    Contents include articles entitled: Suit against Envirocare sparks investigations: Formal petition filed with NRC; Group alleges misconduct by USGS re Beatty study; EPA rescinds NESHAPs subpart 1; Northwest Compact executive director changes jobs; New forum participant for the state of New Jersey; and Director of North Carolina division of radiation control retires.

  1. LLW Notes, Volume 12, Number 9

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Gedden, R.; Lovinger, T.

    1997-12-01

    Contents include articles entitled: Senators criticize DOE use of Envirocare and Molten Metal; Officials express concern re implications of WCS ruling; DOE files notice of appeal in WCS suit; WCS responds to critics re implications of ruling; Background: Prior correspondence between the Senators and DOE re Envirocare; Waste control specialists authorized to conduct additional operations at Texas site; Molten Metal files for bankruptcy protection; Envirocare of Texas receives first approval for hazardous waste permit; Envirocare of Utah applies to NRC for SNM license; NRDC alleges death threats and financial intimidation by Envirocare; DOE and NRC sign off on external regulation pilot program; and NRDC requests Inspector General probe re Envirocare.

  2. LLW Notes, Volume 12, Number 8

    SciTech Connect (OSTI)

    Norris, C.; Brown, H.; Gedden, R.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-12-31

    Contents include articles entitled: Chem-Nuclear documents new plan for Barnwell; Nebraska releases technical analysis of LLRW facility; Southeast Compact suspends funding for NC facility development; NC governor and Southeast Compact differ on proposed MOU; Midwest Compact to return export fees; State legislators` group revises radioactive waste policy; Internal documents discuss administration`s policy on Ward Valley; BLM issues EA for Ward Valley testing; California DHS, NRC criticize DOI`s testing protocols; Army removes training mines from Ward Valley site; The 1997 gubernatorial elections and a look ahead to 1998; Court throws out case challenging Pennsylvania`s siting law; DOE files notice of appeal in WCS suit; Central Compact moves to dismiss ``Veto`` authority suit; Congress exempts NAS from FACA; Judge sets schedule for Ward Valley case; Court won`t order DOE to accept spent fuel by deadline; NRC chairman expresses concern re CERCLA reauthorization; Senators question EPA`s guidance on remediation; EPA issues guidance, criticizes NRC decommissioning rule; Members of Congress clarify FUSRAP transfer; HLW legislation passes House by wide margin; Takings legislation passes House; Energy and water bill signed into law; and Senate confirms 5 of 6 DOE appointees.

  3. VOL2NOTE.CHP:Corel VENTURA

    Gasoline and Diesel Fuel Update (EIA)

    ... unfinished oils, other hydrocar- bonshydrogenoxygenates, and blending components only. ... Refinery production of other hydrocarbons, hydrogen and alcohol, unfinished oils, and ...

  4. LLW Notes, Volume 12, Number 3

    SciTech Connect (OSTI)

    Norris, C.; Brown, H. [eds.; Colsant, J.; Lovinger, T.; Scheele, L.; Shaker, M.A.

    1997-03-01

    Contents include articles entitled: California DHS sues US Interior Department to compel land transfer; LLW Forum holds winter meeting; LLW Forum waste information working group meets; LLW Forum regulatory issues discussion group meets; Envirocare investigation transferred to feds; Host state TCC meets in Laughlin, Nevada; BLM to require new permit for California site testing; Federal agencies and committees; Pena sworn in as Energy Secretary, Grumbly departs DOE; U.S. Supreme Court tackles property rights issues; GAO to study DOI`s actions; Congress scrutinizes FY `98 budget requests; and Senate committee passes high-level waste bill: Clinton threatens to veto.

  5. Notes on a New Coherence Estimator

    SciTech Connect (OSTI)

    Bickel, Douglas L.

    2016-01-01

    This document discusses some interesting features of the new coherence estimator in [1] . The estimator is d erived from a slightly different viewpoint. We discuss a few properties of the estimator, including presenting the probability density function of the denominator of the new estimator , which is a new feature of this estimator . Finally, we present an appr oximate equation for analysis of the sensitivity of the estimator to the knowledge of the noise value. ACKNOWLEDGEMENTS The preparation of this report is the result of an unfunded research and development activity. Sandia National Laboratories is a multi - program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE - AC04 - 94AL85000.

  6. TWC Committee Meeting - Transcribed Flipchart Notes

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

    topic o How do you get waste out of the tanks * Glass 101 - tied to WTP - Needs IM Framing - Bob Suyama, Liz Mattson, Maynard Plahuta * Review proposed December Board meeting...

  7. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Heat Content of Natural Gas Consumed Definitions Key Terms Definition British Thermal Unit (Btu) The quantity of heat required to raise the temperature of 1 pound of liquid water by 1 degree Fahrenheit at the temperature at which water has its greatest density (approximately 39 degrees Fahrenheit). Delivered to Consumers (Heat Content) Heat content of residential, commercial, industrial, vehicle fuel and electric power deliveries to consumers. Electric Power (Heat Content) Heat content of

  8. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    State Shares of U.S. Deliveries Definitions Key Terms Definition Commercial Consumption Gas used by nonmanufacturing establishments or agencies primarily engaged in the sale of goods or services. Included are such establishments as hotels, restaurants, wholesale and retail stores and other service enterprises; gas used by local, State, and Federal agencies engaged in nonmanufacturing activities. Delivered (Gas) The physical transfer of natural, synthetic, and/or supplemental gas from facilities

  9. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Coalbed Methane Proved Reserves Definitions Key Terms Definition Acquisitions The volume of proved reserves gained by the purchase of an existing fields or properties, from the date of purchase or transfer. Adjustments The quantity which preserves an exact annual reserves balance within each State or State subdivision of the following form: Adjustments + Revision Increases - Revision Decreases - Sales + Acquisitions + Extensions + New Field Discoveries + New Reservoir Discoveries in Old Fields -

  10. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Crude Oil plus Lease Condensate Definitions Key Terms Definition Acquisitions The volume of proved reserves gained by the purchase of an existing fields or properties, from the date of purchase or transfer. Adjustments The quantity which preserves an exact annual reserves balance within each State or State subdivision of the following form: Adjustments + Revision Increases - Revision Decreases - Sales + Acquisitions + Extensions + New Field Discoveries + New Reservoir Discoveries in Old Fields -

  11. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Dry Natural Gas Proved Reserves Definitions Key Terms Definition Acquisitions The volume of proved reserves gained by the purchase of an existing fields or properties, from the date of purchase or transfer. Adjustments The quantity which preserves an exact annual reserves balance within each State or State subdivision of the following form: Adjustments + Revision Increases - Revision Decreases - Sales + Acquisitions + Extensions + New Field Discoveries + New Reservoir Discoveries in Old Fields -

  12. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Plant Liquids Proved Reserves Definitions Key Terms Definition Natural Gas Liquids Those hydrocarbons in natural gas which are separated from the gas through the processes of absorption, condensation, adsorption, or other methods in gas processing or cycling plants. Generally such liquids consist of propane and heavier hydrocarbons and are commonly referred to as condensate, natural gasoline, or liquefied petroleum gases. Where hydrocarbon components lighter than propane are recovered as

  13. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Maximum U.S. Active Seismic Crew Counts Definitions Key Terms Definition Dimensions In two-dimensional (2D) reflection seismic surveying both the sound source and the sound detectors (numbering up to a hundred or more per shot) are moved along a straight line. The resultant product can be thought of as a vertical sonic cross-section of the subsurface beneath the survey line. It is constructed by summing many compressional (pressure) wave reflections from the various sound source and sound

  14. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Shale Gas Proved Reserves Definitions Key Terms Definition Acquisitions The volume of proved reserves gained by the purchase of an existing fields or properties, from the date of purchase or transfer. Adjustments The quantity which preserves an exact annual reserves balance within each State or State subdivision of the following form: Adjustments + Revision Increases - Revision Decreases - Sales + Acquisitions + Extensions + New Field Discoveries + New Reservoir Discoveries in Old Fields -

  15. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Average Depth of Crude Oil and Natural Gas Wells Definitions Key Terms Definition Crude Oil A mixture of hydrocarbons that exists in liquid phase in natural underground reservoirs and remains liquid at atmospheric pressure after passing through surface separating facilities. Depending upon the characteristics of the crude stream, it may also include: Small amounts of hydrocarbons that exist in gaseous phase in natural underground reservoirs but are liquid at atmospheric pressure after being

  16. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Country Definitions Key Terms Definition Imports Natural Gas received in the Continental United States (including Alaska) from a foreign country. Liquefied Natural Gas (LNG) Natural gas (primarily methane) that has been liquefied by reducing its temperature to -260 degrees Fahrenheit at atmospheric pressure. Pipeline A continuous pipe conduit, complete with such equipment as valves, compressor stations, communications systems, and meters, for transporting natural and/or supplemental gas from one

  17. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    International & Interstate Movements by State Definitions Key Terms Definition Deliveries The physical transfer of natural, synthetic, and/or supplemental gas from facilities operated by the responding company to facilities operated by others or to consumers. Exports Natural Gas deliveries out of the Continental United States and Alaska to foreign countries. Imports Natural Gas received in the Continental United States (including Alaska) from a foreign country. Natural Gas A gaseous mixture

  18. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Point of Entry Definitions Key Terms Definition Imports Natural Gas received in the Continental United States (including Alaska) from a foreign country. Liquefied Natural Gas (LNG) Natural gas (primarily methane) that has been liquefied by reducing its temperature to -260 degrees Fahrenheit at atmospheric pressure. Pipeline A continuous pipe conduit, complete with such equipment as valves, compressor stations, communications systems, and meters, for transporting natural and/or supplemental gas

  19. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Point of Exit Definitions Key Terms Definition Exports Natural Gas deliveries out of the Continental United States and Alaska to foreign countries. Liquefied Natural Gas (LNG) Natural gas (primarily methane) that has been liquefied by reducing its temperature to -260 degrees Fahrenheit at atmospheric pressure. Pipeline A continuous pipe conduit, complete with such equipment as valves, compressor stations, communications systems, and meters, for transporting natural and/or supplemental gas from

  20. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Imports & Exports by State Definitions Key Terms Definition Exports Natural Gas deliveries out of the Continental United States and Alaska to foreign countries. Imports Natural Gas received in the Continental United States (including Alaska) from a foreign country. Liquefied Natural Gas (LNG) Natural gas (primarily methane) that has been liquefied by reducing its temperature to -260 degrees Fahrenheit at atmospheric pressure. Pipeline A continuous pipe conduit, complete with such equipment

  1. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Coalbed Methane Production Definitions Key Terms Definition Coalbed Methane Methane is generated during coal formation and is contained in the coal microstructure. Typical recovery entails pumping water out of the coal to allow the gas to escape. Methane is the principal component of natural gas. Coalbed methane can be added to natural gas pipelines without any special treatment. For definitions of related energy terms, refer to the EIA Energy Glossary. Sources Energy Information Administration,

  2. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Lease Condensate Production Definitions Key Terms Definition Lease Condensate A mixture consisting primarily of pentanes and heavier hydrocarbons which is recovered as a liquid from natural gas in lease separation facilities. This category excludes natural gas plant liquids, such as butane and propane, which are recovered at downstream natural gas processing plants or facilities. Production, Lease Condensate The volume of lease condensate produced during the report year. Lease condensate volumes

  3. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Natural Gas Plant Liquids Production Definitions Key Terms Definition Natural Gas Liquids Those hydrocarbons in natural gas which are separated from the gas through the processes of absorption, condensation, adsorption, or other methods in gas processing or cycling plants. Generally such liquids consist of propane and heavier hydrocarbons and are commonly referred to as condensate, natural gasoline, or liquefied petroleum gases. Where hydrocarbon components lighter than propane are recovered as

  4. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Offshore Gross Withdrawals Definitions Key Terms Definition Gas Well A well completed for the production of natural gas from one or more gas zones or reservoirs. Such wells contain no completions for the production of crude oil. Gross Withdrawals Full well-stream volume, including all natural gas plant liquids and all nonhydrocarbon gases, but excluding lease condensate. Also includes amounts delivered as royalty payments or consumed in field operations. Offshore Located in either State or

  5. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Plant Processing Definitions Key Terms Definition Extraction Loss The reduction in volume of natural gas due to the removal of natural gas liquid constituents such as ethane, propane, and butane at natural gas processing plants. Natural Gas Processed Natural gas that has gone through a processing plant. Natural Gas Processing Plant A facility designed to recover natural gas liquids from a stream of natural gas which may or may not have passed through lease separators and/or field separation

  6. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Supplemental Supplies Definitions Key Terms Definition Biomass Gas A medium Btu gas containing methane and carbon dioxide, resulting from the action of microorganisms on organic materials such as a landfill. Blast-furnace Gas The waste combustible gas generated in a blast furnace when iron ore is being reduced with coke to metallic iron. It is commonly used as a fuel within steel works. British Thermal Unit (Btu) The quantity of heat required to raise the temperature of 1 pound of liquid water

  7. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Wellhead Value & Marketed Production Definitions Key Terms Definition Marketed Production Gross withdrawals less gas used for repressuring, quantities vented and flared, and nonhydrocarbon gases removed in treating or processing operations. Includes all quantities of gas used in field and processing plant operations. Production The volume of natural gas withdrawn from reservoirs less (1) the volume returned to such reservoirs in cycling, repressuring of oil reservoirs, and conservation

  8. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Capacity Definitions Key Terms Definition Aquifer Storage Field A sub-surface facility for storing natural gas, consisting of water-bearing sands topped by an impermeable cap rock. Depleted Reservoir Storage Field A sub-surface natural geological reservoir, usually a depleted gas or oil field, used for storing natural gas. Natural Gas A gaseous mixture of hydrocarbon compounds, the primary one being methane. Salt Dome Storage Field (Salt Cavern) A storage facility that is a cavern hollowed out

  9. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Natural Gas A gaseous mixture of hydrocarbon compounds, the primary one being methane. Underground Gas Storage The use of sub-surface facilities for storing gas that has been transferred from its original location. The facilities are usually hollowed-out salt domes, natural geological reservoirs (depleted oil or gas fields) or water-bearing sands topped by an impermeable cap rock (aquifer). Working Gas The volume of total natural gas storage capacity that contains natural gas available for

  10. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Annual Supply & Disposition by State Definitions Key Terms Definition Balancing Item Represents the difference between the sum of the components of natural gas supply and the sum of the components of natural gas disposition. These differences maybe due to quantities lost or to the effects of data reporting problems. Reporting problems include differences due to the net result of conversions of flow data metered at varying temperature and pressure bases and converted to a standard temperature

  11. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    U.S. Monthly Supply & Disposition Definitions Key Terms Definition Balancing Item Represents the difference between the sum of the components of natural gas supply and the sum of the components of natural gas disposition. These differences maybe due to quantities lost or to the effects of data reporting problems. Reporting problems include differences due to the net result of conversions of flow data metered at varying temperature and pressure bases and converted to a standard temperature

  12. Utility-Based Revenue Streams-- Notes

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program October 2011 Workshop Summary of Revenue Streams from Breakout Sessions (11/20/11).

  13. Customer-Based Revenue Streams-- Notes

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program October 2011 Workshop, Summary of Revenue Streams from Breakout Sessions (11/20/11).

  14. Contractor-Based Revenue Streams-- Notes

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program October 2011 Workshop, Summary of Revenue Streams from Breakout Sessions (11/20/11).

  15. Financial Institution-Based Revenue Streams-- Notes

    Broader source: Energy.gov [DOE]

    Better Buildings Neighborhood Program October 2011 Workshop, Summary of Revenue Streams from Breakout Sessions (11/20/11).

  16. Favorable conditions noted for Australia shale oil

    SciTech Connect (OSTI)

    Not Available

    1986-09-01

    After brief descriptions of the Rundle, Condor, and Stuart/Kerosene Creek oil shale projects in Queensland, the competitive advantages of oil shale development and the state and federal governments' attitudes towards an oil shale industry in Australia are discussed. It is concluded that Australia is the ideal country in which to start an oil shale industry.

  17. Notes on the MUF-D statistic

    SciTech Connect (OSTI)

    Picard, R.R.

    1987-01-01

    Many aspects of the MUF-D statistic, used for verification of accountability data, have been examined in the safeguards literature. In this paper, basic MUF-D results are extended to more general environments than are usually considered. These environments include arbitrary measurement error structures, various sampling regimes that could be imposed by the inspectorate, and the attributes/variables framework.

  18. Lecture Notes - Combustion Energy Frontier Research Center

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

    Leave The great jobs we have at NNSA also come with comprehensive benefits packages. They are among the best and most comprehensive available and play a vital role in demonstrating the Federal government and NNSA's commitment to its employees. The great jobs we have at NNSA also come with comprehensive benefits packages. They are among the best and most comprehensive available and play a vital role in demonstrating the Federal government and NNSA's commitment to its employees. Time Off icon In

  19. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    in the operator frame, different random samples or imputations for missing or unreported ... estimated quantities which analysis of geological and engineering data demonstrate with ...

  20. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Natural Gas Production, Projected vs. Actual Projected (trillion cubic feet) 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 AEO 1994 17.71 17.68 17.84 18.12 18.25 18.43 18.58 18.93 19.28 19.51 19.80 19.92 20.13 20.18 20.38 20.35 20.16 20.19 AEO 1995 18.28 17.98 17.92 18.21 18.63 18.92 19.08 19.20 19.36 19.52 19.75 19.94 20.17 20.28 20.60 20.59 20.88 AEO 1996 18.90 19.15 19.52 19.59 19.59 19.65 19.73 19.97 20.36 20.82 21.25 21.37 21.68

  1. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Futures Prices Definitions Key Terms Definition Contract 1 A futures contract specifying the earliest delivery date. Natural gas contracts expire three business days prior to the first calendar day of the delivery month. Thus, the delivery month for Contract 1 is the calendar month following the trade date. Contract 2-4 Represent the successive delivery months following Contract 1. Futures Price The price quoted for delivering a specified quantity of a commodity at a specified time and place in

  2. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Prices Definitions Key Terms Definition Citygate A point or measuring station at which a distributing gas utility receives gas from a natural gas pipeline company or transmission system. Commercial Price The price of gas used by nonmanufacturing establishments or agencies primarily engaged in the sale of goods or services such as hotels, restaurants, wholesale and retail stores and other service enterprises; and gas used by local, State and Federal agencies engaged in nonmanufacturing

  3. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Gross Withdrawals and Production Definitions Key Terms Definition Coalbed Methane Methane is generated during coal formation and is contained in the coal microstructure. Typical recovery entails pumping water out of the coal to allow the gas to escape. Methane is the principal component of natural gas. Coalbed methane can be added to natural gas pipelines without any special treatment. Dry Natural Gas Production The process of producing consumer-grade natural gas. Natural gas withdrawn from

  4. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Number of Producing Gas Wells Definitions Key Terms Definition Gas Well A well completed for the production of natural gas from one or more gas zones or reservoirs. Such wells contain no completions for the production of crude oil. For definitions of related energy terms, refer to the EIA Energy Glossary. Sources Form EIA-895A, "Annual Quantity and Value of Natural Gas Production Report" , EIA estimates based on data from the Bureau of Safety and Environmental Enforcement, and

  5. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    LNG Storage Additions & Withdrawals Definitions Key Terms Definition Liquefied Natural Gas Natural gas (primarily methane) that has been liquefied by reducing its temperature to -260 degrees Fahrenheit at atmospheric pressure. Net Withdrawals The amount by which storage withdrawals exceed storage injections. Storage Additions Volumes of gas injected or otherwise added to underground natural gas reservoirs or liquefied natural gas storage. Storage Withdrawals Total volume of gas withdrawn

  6. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Underground Storage - All Operators Definitions Key Terms Definition AGA Eastern Consuming Region All States east of the Mississippi River less Mississippi and Alabama, plus Iowa, Nebraska and Missouri. AGA Western Consuming Region All States west of the Mississippi River less the Producing Region and Iowa, Nebraska and Missouri. AGA Producing Region Alabama, Arkansas, Kansas, Louisiana, Mississippi, New Mexico, Oklahoma, and Texas. Base (cushion) Gas The volume of gas needed as a permanent

  7. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    U.S. Underground Storage by Type Definitions Key Terms Definition Base (cushion) gas The volume of gas needed as a permanent inventory to maintain adequate reservoir pressures and deliverability rates throughout the withdrawal season. All native gas is included in the base gas volume. Gas in storage The sum of base gas plus working gas. Injections The volume of gas injected into storage reservoirs. Natural Gas A gaseous mixture of hydrocarbon compounds, the primary one being methane. Net

  8. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Summary Definitions Key Terms Definition Acquisitions (Proved Reserves) The volume of proved reserves gained by the purchase of an existing fields or properties, from the date of purchase or transfer. Adjustments (Proved Reserves) The quantity which preserves an exact annual reserves balance within each State or State subdivision of the following form: Adjustments + Revision Increases - Revision Decreases - Sales + Acquisitions + Extensions + New Field Discoveries + New Reservoir Discoveries in

  9. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Distillate by End Use Definitions Key Terms Definition All Other Sales for all other energy-consuming sectors not included elsewhere. Commercial An energy-consuming sector that consists of service-providing facilities and equipment of nonmanufacturing businesses; Federal, State, and local governments; and other private and public organizations, such as religious, social, or fraternal groups. The commercial sector includes institutional living quarters. Common uses of energy associated with this

  10. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Distillate by End Use Definitions Key Terms Definition Adjusted Sales Distillate fuel oil sales estimates have been adjusted at the PADD district level to equal published EIA volume estimates of petroleum products supplied in the U.S. marketplace. The kerosene and residual fuel oil sales estimates have been adjusted at the national level. The products supplied estimates can be found in the Petroleum Supply Annual for the appropriate year. In addition, electric power generation data and

  11. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Kerosene by End Use Definitions Key Terms Definition All Other Sales for all other energy-consuming sectors not included elsewhere. Commercial An energy-consuming sector that consists of service-providing facilities and equipment of nonmanufacturing businesses; Federal, State, and local governments; and other private and public organizations, such as religious, social, or fraternal groups. The commercial sector includes institutional living quarters. Common uses of energy associated with this

  12. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Kerosene by End Use Definitions Key Terms Definition Adjusted Sales Distillate fuel oil sales estimates have been adjusted at the PADD district level to equal published EIA volume estimates of petroleum products supplied in the U.S. marketplace. The kerosene and residual fuel oil sales estimates have been adjusted at the national level. The products supplied estimates can be found in the Petroleum Supply Annual for the appropriate year. In addition, electric power generation data and on-highway

  13. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Residual Fuel Oil by End Use Definitions Key Terms Definition All Other Sales for all other energy-consuming sectors not included elsewhere. Commercial An energy-consuming sector that consists of service-providing facilities and equipment of nonmanufacturing businesses; Federal, State, and local governments; and other private and public organizations, such as religious, social, or fraternal groups. The commercial sector includes institutional living quarters. Common uses of energy associated

  14. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Residual Fuel Oil by End Use Definitions Key Terms Definition Adjusted Sales Distillate fuel oil sales estimates have been adjusted at the PADD district level to equal published EIA volume estimates of petroleum products supplied in the U.S. marketplace. The kerosene and residual fuel oil sales estimates have been adjusted at the national level. The products supplied estimates can be found in the Petroleum Supply Annual for the appropriate year. In addition, electric power generation data and

  15. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    by End Use Definitions Key Terms Definition All Other Sales for all other energy-consuming sectors not included elsewhere. Commercial An energy-consuming sector that consists of service-providing facilities and equipment of nonmanufacturing businesses; Federal, State, and local governments; and other private and public organizations, such as religious, social, or fraternal groups. The commercial sector includes institutional living quarters. Common uses of energy associated with this sector

  16. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    by End Use Definitions Key Terms Definition Adjusted Sales Distillate fuel oil sales estimates have been adjusted at the PADD district level to equal published EIA volume estimates of petroleum products supplied in the U.S. marketplace. The kerosene and residual fuel oil sales estimates have been adjusted at the national level. The products supplied estimates can be found in the Petroleum Supply Annual for the appropriate year. In addition, electric power generation data and on-highway diesel

  17. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Prime Supplier Sales Volume Definitions Key Terms Definition Conventional Gasoline Finished motor gasoline not included in the oxygenated or reformulated gasoline categories. Excludes reformulated gasoline blendstock for oxygenate blending (RBOB) as well as other blendstock. Finished Aviation Gasoline A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in aviation reciprocating engines. Fuel specifications

  18. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Motor Gasoline Definitions Key Terms Definition Bulk Sales Wholesale sales of gasoline in individual transactions which exceed the size of a truckload. Dealer Tank Wagon Sales (DTW) Wholesale sales of gasoline priced on a delivered basis to a retail outlet. Gas Plant Operator Any firm, including a gas plant owner, which operates a gas plant and keeps the gas plant records. A gas plant is a facility in which natural gas liquids are separated from natural gas or in which natural gas liquids are

  19. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    Residual Fuel Oil and No. 4 Fuel Oil Definitions Key Terms Definition Gas Plant Operator Any firm, including a gas plant owner, which operates a gas plant and keeps the gas plant records. A gas plant is a facility in which natural gas liquids are separated from natural gas or in which natural gas liquids are fractionated or otherwise separated into natural gas liquid products or both. For the purposes of this survey, gas plant operator data are contained in the refiner categories. No. 4 Fuel A

  20. Table Definitions, Sources, and Explanatory Notes

    Gasoline and Diesel Fuel Update (EIA)

    U.S. Weekly Products Supplied Definitions Key Terms Definition Barrel A unit of volume equal to 42 U.S. gallons. Distillate Fuel Oil A general classification for one of the petroleum fractions produced in conventional distillation operations. It includes diesel fuels and fuel oils. Products known as No. 1, No. 2, and No. 4 diesel fuel are used in on-highway diesel engines, such as those in trucks and automobiles, as well as off-highway engines, such as those in railroad locomotives and