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Sample records for zie morton willia

  1. Laura Smith Morton

    Broader source: Energy.gov [DOE]

    Laura Smith Morton is a Senior Advisor to the Director of Energy Policy and Systems Analysis.  Laura previously served as a Policy Advisor in the Office of Management and Budget (OMB) from...

  2. West Morton, North Dakota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    "alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":"" Hide Map West Morton is a unorganized territory in Morton County, North Dakota. It falls under North...

  3. Morton County, Kansas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Morton County, Kansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 37.1333387, -101.7979613 Show Map Loading map... "minzoom":false,"mappin...

  4. Lake Morton-Berrydale, Washington: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    can help OpenEI by expanding it. Lake Morton-Berrydale is a census-designated place in King County, Washington.1 References US Census Bureau 2005 Place to 2006 CBSA...

  5. Health-hazard evaluation report HETA 88-391-2156, Morton Salt Company, Weeks Island, Louisiana

    SciTech Connect (OSTI)

    Ferguson, R.P.; Knutti, E.B.

    1991-11-01

    In response to a request from the International Chemical Workers Union, project director, an evaluation was undertaken of possible hazardous working conditions at the Morton Salt Company (SIC-1479), Weeks Island, Louisiana. At Weeks Island the salt was mined from large domes, circular in shape and from a few hundred yards to a mile across. The only detectable overexposures in the mining operation were to coal-tar pitch volatiles. None of the 20 personal breathing zone and area air samples collected in the mill were above detectable limits for asbestos (1332214). The prevalences of chronic cough and chronic phlegm reported were statistically different, exceeding those reported by a group of nonexposed blue collar workers. Chronic symptoms were reported by underground workers in all smoking categories, but only by those surface workers who also smoked. There were more complaints about eye irritation and tearing of the eyes in the underground workers, consistent with diesel byproduct exposure. Four workers were identified through pulmonary function test results with mild obstructive lung disease and one with moderate obstructive lung disease. Three workers with mild restriction of lung volume were noted. None of the 61 chest films taken read positively for pneumoconiosis. The authors conclude that overexposures to coal-tar pitch volatiles existed at the time of the survey. The authors recommend measures for reducing occupational exposures to workplace contaminants. A follow up medical questionnaire survey should be conducted.

  6. Health hazard evaluation report HETA 88-391-2156, Morton Salt Company, Weeks Island, Louisiana. (Revised April 1993)

    SciTech Connect (OSTI)

    Ferguson, R.P.; Knutti, E.B.

    1993-04-01

    In response to a request from the International Chemical Workers Union, an investigation was made of exposures to asbestos and diesel emissions at the Morton Salt Company, Weeks Island, Louisiana. The most significant source of particulates was diesel exhaust. None of the 20 personal breathing zone or area air samples collected in the mill exceeded limits for asbestos. An increased prevalence of chronic cough and phlegm was reported by workers. More complaints of eye irritation and tearing of the eyes were noted in underground workers, consistent with diesel byproduct exposure. Pulmonary function studies indicated that four workers had mild obstructive lung disease and one had moderate obstructive lung disease. Three workers with mild restriction of lung volume were also noted. None of the 61 chest films taken was positive for pneumoconiosis. The authors conclude that a potential hazard existed from exposure to diesel exhaust.

  7. shaleoil1.pdf

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

    ... USA CANADA SD ND MT Saskatchewan Manitoba Dunn Wa rd Dawson McL ea n McK en zie Morton ... SIGNIFICANT BAKKEN OIL FIELDS Bakken Shale Extent Canada MT ID IL IA WY NV NE SD MN ND WI ...

  8. Linda Morton | Department of Energy

    Office of Environmental Management (EM)

    Strategic Outreach Division at National Energy Technology Laboratory, one of the Department of Energy's 17 National Labs. Most Recent Scientists Can Recycle CO2 Using Gold May 27

  9. East Morton, North Dakota: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    ,"searchmarkers":"","locations":"text":"","title":"","link":null,"lat":46.536712,"lon":-100.911022,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""...

  10. Browse by Discipline -- E-print Network Subject Pathways: Plasma...

    Office of Scientific and Technical Information (OSTI)

    Barlaz, Morton A. (Morton A. Barlaz) - Department of Civil, Construction, and ... William (William Burgos) - Department of Civil and Environmental Engineering, ...

  11. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... for the National Ignition Facility Moore, A S ; Guymer, T M ; Kline, J L ; Morton, ... for the National Ignition Facility Moore, A. S. ; Guymer, T. M. ; Morton, J. ; ...

  12. OSTIblog Articles in the Jonah Lehrer Topic | OSTI, US Dept of...

    Office of Scientific and Technical Information (OSTI)

    Jonah Lehrer Topic Open Science: the Case for Preserving Raw Data by Dr. Jeffrey Salmon 12 ... Gould checked Morton's data and concluded that Morton had cooked the books as it were and ...

  13. RRTT - Rapid Response Team for Transmission

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

    Clean Energy Development in the West TRIBAL LEADER FORUM SERIES February 7, 2012 Laura Smith Morton Department of Energy Laura.morton@hq.doe.gov Nine Agency MOU * Improves ...

  14. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Autschbach, Jochen (1) Jacob, Christoph (1) Kowalski, Karol (1) Moore, Justin E. (1) ... Understanding the Chemical Effect in SERS Moore, Justin E. ; Morton, Seth M. ; Jensen, ...

  15. Browse by Discipline -- E-print Network Subject Pathways: Environmenta...

    Office of Scientific and Technical Information (OSTI)

    A. (Morton A. Barlaz) - Department of Civil, Construction, and Environmental ... Water Research Laboratory & Department of Civil and Environmental Engineering, Utah State ...

  16. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    properties of Gulf Coast sandstones and their implications for geopressured fluid production Morton R A Ewing T E Tyler N GEOTHERMAL ENERGY GEOPRESSURED SYSTEMS...

  17. Continuity and internal properties of Gulf Coast sandstones and...

    Office of Scientific and Technical Information (OSTI)

    properties of Gulf Coast sandstones and their implications for geopressured fluid production Morton, R.A.; Ewing, T.E.; Tyler, N. 15 GEOTHERMAL ENERGY; GEOPRESSURED...

  18. A History Of Hot Dry Rock Geothermal Energy Systems | Open Energy...

    Open Energy Info (EERE)

    oldest, most plentiful, most widespread and secure energy sources. Author Morton C. Smith Published Journal Journal of Volcanology and Geothermal Research, 1983 DOI Not...

  19. Observation Wells At Fenton Hill HDR Geothermal Area (Dash, Et...

    Open Energy Info (EERE)

    Dennis, Donald S. Dreesen, Leigh S. House, Hugh D. Murphy, Bruce A. Robinson, Morton C. Smith (1987) The US Hot Dry Rock Project Additional References Retrieved from "http:...

  20. The US Hot Dry Rock Project | Open Energy Information

    Open Energy Info (EERE)

    Donald S. Dreesen, Leigh S. House, Hugh D. Murphy, Bruce A. Robinson and Morton C. Smith Published Journal Geothermics, 1987 DOI Not Provided Check for DOI availability:...

  1. Hopkins County, Kentucky: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Climate Zone Number 4 Climate Zone Subtype A. Places in Hopkins County, Kentucky Dawson Springs, Kentucky Earlington, Kentucky Hanson, Kentucky Madisonville, Kentucky Mortons...

  2. Climate Zone 6A | Open Energy Information

    Open Energy Info (EERE)

    Morrison County, Minnesota Morton County, North Dakota Mower County, Minnesota Murray County, Minnesota Newaygo County, Michigan Nicollet County, Minnesota Nobles County,...

  3. Climate Zone Number 6 | Open Energy Information

    Open Energy Info (EERE)

    Morrison County, Minnesota Morton County, North Dakota Mower County, Minnesota Murray County, Minnesota Musselshell County, Montana Natrona County, Wyoming Newaygo County,...

  4. EA-1966: Final Environmental Assessment | Department of Energy

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

    facility south of Hebron in Morton and Stark Counties, North Dakota. PDF icon EA-1966-FEA-2014.pdf More Documents & Publications EA-1966: Draft Environmental Assessment EA-1902:...

  5. Beamline 8.2.1

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

    from spambots. You need JavaScript enabled to view it Berkeley Center for Structural Biology Office phone: (510) 495-2594 Cell: (510) 813-4148 fax: (510) 486-5664 Simon Morton...

  6. Importance of Correctly Describing Charge-Transfer Excitations...

    Office of Scientific and Technical Information (OSTI)

    Authors: Moore, Justin E. ; Morton, Seth M. ; Jensen, Lasse Publication Date: 2012-09-06 OSTI Identifier: 1222160 DOE Contract Number: AC05-76RL01830 Resource Type: Journal Article ...

  7. Acclaim for Three Leaders at Annual NREL Stakeholders Reception...

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

    and Innovation: 50th Anniversary of the Solar Cell & Leadership in Renewable Energy." Also to be honored is Dr. Morton Price of the Bell Labs, a pioneer in the development ...

  8. RecycleBank | Open Energy Information

    Open Energy Info (EERE)

    Address: 95 Morton Street Place: New York, New York Region: Northeast - NY NJ CT PA Area Sector: Efficiency Number of Employees: 51-200 Website: www.recyclebank.com...

  9. Exploring the Business Link Opportunity: Transmission & Clean...

    Energy Savers [EERE]

    Weddle, Greenberg Traurig LLP (4.04 MB) Rapid Response Team for Transmission: Laura Smith Morton, DOE (902.5 KB) Energy Storage: Michael Stosser, Day Pitney LLP (1.04 MB) ...

  10. EERE Interagency Activities related to Siting and Permitting

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

    | Energy Efficiency and Renewable Energy eere.energy.gov The Parker Ranch installation in Hawaii Office of Energy Efficiency and Renewable Energy Interagency Activities related to Siting and Permitting STEAB Presentation June 27, 2012 Laura Morton Senior Advisor Administration Initiatives to improve permitting and review of renewable energy projects * Rapid Response Teams (Transmission & Renewable Energy Generation) created 2011 * Presidential Memorandum on Speeding Infrastructure

  11. The Science Behind Pokemon GO

    ScienceCinema (OSTI)

    Piburn, Jesse; Morton, April

    2016-08-05

    Jesse Piburn and April Morton of Oak Ridge National Laboratory's Geographic Information Science & Technology Group discuss the science and technology Pokémon GO and how it is used every day to solve real-world problems. (Pokémon GO photos/videos courtesy of Pokémon/Nintendo).

  12. EIS-0156: Cowlitz Falls Final Environmental Impact Statement

    Broader source: Energy.gov [DOE]

    The Federal Energy Regulatory Commission prepared this statement to assess the environmental impacts of constructing and operating a proposed 70-megawatt hydroelectric dam and electrical infrastructure on the Cowlitz River near Morton and Randle, Washington. The U.S. Department of Energy's Bonneville Power Administration adopted this statement on 12/6/1990 to fulfil its National Environmental Policy Act requirement for its proposed action to acquire the power output from the Cowlitz Falls Hydroelectric Project.

  13. Meet CMI Researcher Corby Anderson | Critical Materials Institute

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

    Corby Anderson Image of Corby Anderson, researcher at Critical Materials Institute CMI researcher Dr. Corby Anderson has more than 34 years of global experience in industrial operations, management, engineering, design, consulting, teaching, research and professional service. His career includes positions with Morton Thiokol, Key Tronic Corporation, Sunshine Mining and Refining Company, H. A Simons Ltd. and at Montana Tech. He holds a BSc in Chemical Engineering and an MSc and PhD in

  14. 2003 High Temperature Membrane Working Group Meeting Archives | Department

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

    of Energy High Temperature Membrane Working Group Meeting Archives 2003 High Temperature Membrane Working Group Meeting Archives View 2003 meeting presentations from the High Temperature Membrane Working Group. October 17, 2003, Orlando, Florida High T Membrane Development at Foster-Miller, Bindu Nair, Foster-Miller Highly Sulfonated Polymers for High Temperature Applications, Morton Litt, Case Western Reserve University Assessing Transport in New Electrolytes, Bryan Pivovar, LANL

  15. Argonne's 2012 Earth Day Event

    ScienceCinema (OSTI)

    None

    2013-04-19

    Argonne's 2012 Earth Day event drew crowds from across the laboratory. Argonne and U.S. Department of Energy employees toured booths and interactive displays set up by Argonne programs and clubs. Several of Argonne's partners participated, including U.S. Department of Energy, University of Chicago, Abri Credit Union, DuPage County Forest Preserve, DuPage Water Commission, PACE and Morton Arboretum. Argonne scientists and engineers also participated in a poster session, discussing their clean energy research.

  16. AGU 2011 poster Craig Hill

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

    St. Anthony Falls Laboratory, College of Science & Engineering, University of Minnesota, Minneapolis, MN 55414, USA 2 Energy-Water-Ecosystems Engineering, Wind and Water Power Technologies, Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA Craig Hill 1 , Leonardo P. Chamorro 1 , Vincent S. Neary 2 , Budi Gunawan 2 , Scott Morton 1 , Fotis Sotiropoulos 1 Turbulence e ects of axial ow hydrokinetic turbines OS53A-1763 F. ACKNOWLEDGEMENTS is project was

  17. Scout | Department of Energy

    Energy Savers [EERE]

    Can Recycle CO2 Using Gold Scientists Can Recycle CO2 Using Gold May 27, 2016 - 9:57am Addthis A new chemical process has the potential to reduce atmospheric CO2 emissions by transforming CO2 into fuel and useful chemicals. | Image courtesy of NETL. A new chemical process has the potential to reduce atmospheric CO2 emissions by transforming CO2 into fuel and useful chemicals. | Image courtesy of NETL. Linda Morton National Energy Technology Laboratory Using sunlight and gold to change carbon

  18. State Energy Advisory Board June 2012 Meeting | Department of Energy

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

    2 Meeting State Energy Advisory Board June 2012 Meeting The agenda, minutes, presentations, and other materials from this meeting of STEAB. Meeting Agenda -- June 2012 (130.14 KB) Meeting Minutes -- June 2012 (153.43 KB) BNL Overview -- Looney (7.33 MB) Energy Literacy -- Fox (9.89 MB) OWIP Overview -- Adams (3.94 MB) Renewable Energy at DOE -- Lindenberg (4.39 MB) Renewable Energy at DOE -- Morton (2.17 MB) SEE Action Overview -- Zetterberg (1.88 MB) SEP Evaluation Overview -- Schweitzer

  19. U.S. Department of Energy National Energy Technology Laboratory

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

    7, 2015 NEWS MEDIA CONTACT: Linda Morton, 304-816-1335 MORGANTOWN HIGH SCHOOL-TEAM 1 AND SUNCREST MIDDLE SCHOOL- TEAM 1 CAPTURE REGIONAL SCIENCE BOWL CHAMPIONSHIPS WINNERS EARN TRIP TO WASHINGTON DC TO COMPETE FOR NATIONAL TITLE Morgantown High School-Team 1and Suncrest Middle School-Team 1, Morgantown, captured the championship crowns in their respective categories in the 2015 West Virginia Science Bowl Regional for high schools and middle schools co-hosted today by the U.S. Department of

  20. U.S. Department of Energy National Energy Technology Laboratory

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

    6, 2016 NEWS MEDIA CONTACT: Linda Morton, 304-816-1335 MORGANTOWN HIGH SCHOOL-TEAM 1 AND SUNCREST MIDDLE SCHOOL- TEAM 1 CAPTURE REGIONAL SCIENCE BOWL CHAMPIONSHIPS WINNERS EARN TRIP TO WASHINGTON DC TO COMPETE FOR NATIONAL TITLE Morgantown High School-Team 1, and Suncrest Middle School-Team 1, Morgantown, captured the championship crowns in their respective categories in the 2016 West Virginia Science Bowl Regional for high schools and middle schools co- hosted Saturday by the U.S. Department of

  1. Microsoft Word - 10-19264_R0_09-09-10 FINAL.docx

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

    INL is a U.S. Department of Energy National Laboratory operated by Battelle Energy Alliance INL/EXT-10-19264 Revision 0 Idaho National Laboratory's Greenhouse Gas FY08 Baseline Jennifer D. Morton September 2010 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the

  2. Identification and mitigation of stray laser light in the Thomson scattering system on the Madison Symmetric Torus (MST)

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

    and mitigation of stray laser light in the Thomson scattering system on the Madison Symmetric Torus (MST) C. M. Jacobson, M. T. Borchardt, D. J. Den Hartog, A. F. Falkowski, L. A. Morton, and M. A. Thomas Citation: Review of Scientific Instruments 87, 11E511 (2016); doi: 10.1063/1.4960063 View online: http://dx.doi.org/10.1063/1.4960063 View Table of Contents: http://scitation.aip.org/content/aip/journal/rsi/87/11?ver=pdfcov Published by the AIP Publishing Articles you may be interested in A

  3. EA-1966: Sunflower Wind Project, Hebron, North Dakota

    Broader source: Energy.gov [DOE]

    Western Area Power Administration (Western) prepared an EA to evaluate potential environmental impacts of interconnecting a proposed 80 MW generating facility south of Hebron in Morton and Stark Counties, North Dakota. The proposed wind generating facility of 30-50 wind turbines encompassed approximately 9,000 acres. Ancillary facilities included an underground collection line system, a project substation, one mile of new transmission line, a new switchyard facility on the existing Dickinson-Mandan 230 kV line owned and operated by Western, one permanent meteorological tower, new access roads, and an operations and maintenance building.

  4. ALSNews Vol. 291

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

    1 ALSNews Vol. 291 Print Wednesday, 24 September 2008 00:00 In This Issue Director's Update: Looking to the Future-A Renewed ALS Strategic Plan Isotope and Temperature Effects in Liquid Water Probed by Soft X Rays Characterization of Selective Binding of Alkali Cations with Carboxylate UEC Corner: 2008 Users' Meeting; Washington DC Visit; Become a UEC Member Submit Your Publications as Soon as Possible! Operations Bulletin Board ALS Scientist Simon Morton Part of "First Light" Team at

  5. Cross-media approach to saving the Chesapeake Bay

    SciTech Connect (OSTI)

    Appleton, E.L.

    1995-12-01

    A project EPA began in August will investigate the possibility of cross-media emissions trading as a new approach to reducing nitrogen loadings to the Chesapeake Bay. Working with the Environmental Defense Fund (EDF), the Agency hopes to device a NO{sub x} trading framework along the lines of existing sulfur dioxide trading plans to control acid rain. The Chesapeake Air Project will examine the feasibility of using emissions trading between and water sources, including trading credits between power plants and mobile sources, to reduce the atmospheric deposition of nitrogen to the bay. The progress of the Bay Program nutrient reduction goals is up for reevaluation in 1997, and Knopes and EDF economist Brian Morton have high hopes that the trading plan, which would place a cap on the mass of emissions and rate of deposition allowed by all sources, will become the atmospheric deposition portion of the Chesapeake Bay Program`s Nutrient Reduction Strategy. 6 refs.

  6. Geodesic IO Library

    Energy Science and Technology Software Center (OSTI)

    2011-03-15

    GIO is an application programmer interface (API) or library for high performance IO that is designed for climate models that operate on a geodesic grid. GIO uses a combination of configuration files and API calls to define the mapping of internal model data to output variables in standard climate data formats. The mapping from model data to model output includes method of data slicing, aggregation, and linearization using a morton ordering approach. The data ismore » then persisted through a standard interface that can be implemented using several different high level parallel libraries. Both Parallel NetCDF and NetCDF4 interfaces are provided. GIO is designed to run on supercomputing systems or multi-processor clusters with parallel file systems.« less

  7. Library API for Z-Order Memory Layout

    Energy Science and Technology Software Center (OSTI)

    2015-02-01

    This library provides a simple-to-use API for implementing an altnerative to traditional row-major order in-memory layout, one based on a Morton- order space filling curve (SFC) , specifically, a Z-order variant of the Morton order curve. The library enables programmers to, after a simple initialization step, to convert a multidimensional array from row-major to Z- order layouts, then use a single, generic API call to access data from any arbitrary (i,j,k) location from within themore » array, whether it it be stored in row- major or z-order format. The motivation for using a SFC in-memory layout is for improved spatial locality, which results in increased use of local high speed cache memory. The basic idea is that with row-major order layouts, a data access to some location that is nearby in index space is likely far away in physical memory, resulting in poor spatial locality and slow runtime. On the other hand, with a SFC-based layout, accesses that are nearby in index space are much more likely to also be nearby in physical memory, resulting in much better spatial locality, and better runtime performance. Numerous studies over the years have shown significant runtime performance gains are realized by using a SFC-based memory layout compared to a row-major layout, sometimes by as much as 50%, which result from the better use of the memory and cache hierarchy that are attendant with a SFC-based layout (see, for example, [Beth2012]). This library implementation is intended for use with codes that work with structured, array-based data in 2 or 3 dimensions. It is not appropriate for use with unstructured or point-based data.« less

  8. Final Report - Los Alamos National Laboratory Compuational Physics Summer Student Workshop

    SciTech Connect (OSTI)

    Lung, Tyler B.; Roe, Phil; Morgan, Nathaniel R.

    2012-08-15

    The numerical solution of highly compressible, multi-material flows is an ongoing research area. These types of flows can be solved with a Lagrangian type mesh which moves with the material in a simulation to allow precise material interface tracking. Currently, researchers at Los Alamos National Laboratory and elsewhere are investigating cell-centered Lagrangian algorithms with the aim of producing methods that have second-order accuracy, preserve symmetry, and do not generate spurious vorticity. The new cell-centered algorithms solve a Riemann-like problem at the vertex of a cell. Professor Phil Roe at the University of Michigan has proposed a new struture for Lagrangian hydrodynamic algorithms that does not rely on the solution of the Riemann problem. The new approach utilizes Flux Corrected Transport (FCT) and it implements a form of vorticity control. The first step in the development of this method has been to construct an algorithm that solves the acoustic equations on an Eulerian mesh. The algorithm, which builds on the work of Morton and Roe [1], calculates fluxes at cell vertices, attains second-order accuracy using FCT, and has the special property of preserving vorticity. Results are presented that confirm the second order accuracy of the scheme and the vorticity preserving properties. The results are compared to the output produced by a MUSCL-Hancock algorithm. Some discussion of limiting methods for the FCT algorithm is also given.

  9. Computing confidence intervals on solution costs for stochastic grid generation expansion problems.

    SciTech Connect (OSTI)

    Woodruff, David L..; Watson, Jean-Paul

    2010-12-01

    A range of core operations and planning problems for the national electrical grid are naturally formulated and solved as stochastic programming problems, which minimize expected costs subject to a range of uncertain outcomes relating to, for example, uncertain demands or generator output. A critical decision issue relating to such stochastic programs is: How many scenarios are required to ensure a specific error bound on the solution cost? Scenarios are the key mechanism used to sample from the uncertainty space, and the number of scenarios drives computational difficultly. We explore this question in the context of a long-term grid generation expansion problem, using a bounding procedure introduced by Mak, Morton, and Wood. We discuss experimental results using problem formulations independently minimizing expected cost and down-side risk. Our results indicate that we can use a surprisingly small number of scenarios to yield tight error bounds in the case of expected cost minimization, which has key practical implications. In contrast, error bounds in the case of risk minimization are significantly larger, suggesting more research is required in this area in order to achieve rigorous solutions for decision makers.

  10. Laboratory measurements of contaminant attenuation of uranium mill tailings leachates by sediments and clay liners

    SciTech Connect (OSTI)

    Serne, R.J.; Peterson, S.R.; Gee, G.W.

    1983-04-01

    We discuss FY82 progress on the development of laboratory tools to aid in the prediction of migration potential of contaminants present in acidic uranium mill tailings leachate. Further, empirical data on trace metal and radionuclide migration through a clay liner are presented. Acidic uranium mill tailings solution from a Wyoming mill was percolated through a composite sediment called Morton Ranch Clay liner. These laboratory columns and subsequent sediment extraction data show: (1) As, Cr, Pb, Ag, Th and V migrate very slowly; (2) U, Cd, Ni, Zn, Fe, Mn and similar transition metals are initially immobilized during acid neutralization but later are remobilized as the tailings solution exhausts the clay liner's acid buffering capacity. Such metals remain immobilized as long as the effluent pH remains above a pH value of 4 to 4.5, but they become mobile once the effluent pH drops below this range; and (3) fractions of the Se and Mo present in the influent tailings solution are very mobile. Possible controlling mechanisms for the pH-dependent immobilization-mobilization of the trace metals are discussed. More study is required to understand the controlling mechanisms for Se and Mo and Ra for which data were not successfully collected. Using several column lengths (from 4.5 to 65 cm) and pore volume residence times (from 0.8 to 40 days) we found no significant differences in contaminant migration rates or types and extent of controlling processes. Thus, we conclude that the laboratory results may be capable of extrapolation to actual disposal site conditions.