National Library of Energy BETA

Sample records for axis history proj

  1. Hartford Landfill Gas Utilization Proj Biomass Facility | Open...

    Open Energy Info (EERE)

    Landfill Gas Utilization Proj Biomass Facility Jump to: navigation, search Name Hartford Landfill Gas Utilization Proj Biomass Facility Facility Hartford Landfill Gas Utilization...

  2. Balefill Landfill Gas Utilization Proj Biomass Facility | Open...

    Open Energy Info (EERE)

    Balefill Landfill Gas Utilization Proj Biomass Facility Jump to: navigation, search Name Balefill Landfill Gas Utilization Proj Biomass Facility Facility Balefill Landfill Gas...

  3. PM Update - Steve Meador, Acting Dir for Proj Assessment-SC, Jack Surash,

    Energy Savers [EERE]

    Dep Asst Secretary for APM-EM, Bob Raines, Assoc. Administrator for APM-NNSA | Department of Energy Update - Steve Meador, Acting Dir for Proj Assessment-SC, Jack Surash, Dep Asst Secretary for APM-EM, Bob Raines, Assoc. Administrator for APM-NNSA PM Update - Steve Meador, Acting Dir for Proj Assessment-SC, Jack Surash, Dep Asst Secretary for APM-EM, Bob Raines, Assoc. Administrator for APM-NNSA 2014 DOE Project Management Workshop PDF icon PM Update - Steve Meador, Acting Dir for Proj

  4. PM Update - Steve Meador, Acting Dir for Proj Assessment-SC,...

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

    Update - Steve Meador, Acting Dir for Proj Assessment-SC, Jack Surash, Dep Asst Secretary for APM-EM, Bob Raines, Assoc. Administrator for APM-NNSA PM Update - Steve Meador, Acting...

  5. History

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

    Nuclear Physics Isotopes History History Isotopes produced at Los Alamos National Laboratory are saving lives, advancing cutting-edge research and keeping the U.S. safe....

  6. History

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

    History History Print Photos 20th Anniversary Kickoff Brunch, January 11, 2013 ALS 20th Anniversary Celebration, October 4, 2013 Videos ALS Dedication, October 22, 1993 (excerpts) ALS Dedication, October 22, 1993 (full) The ALS Beamline Clock Articles BRIGHT BEAMS: The Advanced Light Source LBL Research Review (Spring 1993) A history of the ALS, From Cyclotron to Synchrotron Interactive Timeline ALS History: The First 20 Years

  7. LPO5-002-Proj-Poster-PV-CVSR

    Office of Environmental Management (EM)

    To boost output, California Valley Solar Ranch uses innovative single-axis trackers and a wireless monitoring and control system. CALIFORNIA VALLEY SOLAR RANCH INVESTING in AMERICAN ENERGY OWNERS NRG Energy, Inc. & NRG Solar, LLC LOCATION San Luis Obispo, California LOAN AMOUNT $1.2 Billion ISSUANCE DATE September 2011 GENERATION CAPACITY 250 MW PROJECTED ANNUAL GENERATION 650,000 MWh CLIMATE BENEFIT 370,000 Metric Tons of CO 2 Prevented Annually

  8. History

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

    History History A repository for images about our legacy as a Laboratory. News Releases Science Briefs Photos Picture of the Week Social Media Videos Fact Sheets Publications PHOTOS BY TOPIC Careers Community Visitors Environment History Science The Lab Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Back in the day Back in the day LA bridge in Los Alamos LA bridge in Los Alamos 1945 Army-Navy

  9. History

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

    History Print Photos 20th Anniversary Kickoff Brunch, January 11, 2013 ALS 20th Anniversary Celebration, October 4, 2013 Videos ALS Dedication, October 22, 1993 (excerpts) ALS Dedication, October 22, 1993 (full) The ALS Beamline Clock Articles BRIGHT BEAMS: The Advanced Light Source LBL Research Review (Spring 1993) A history of the ALS, From Cyclotron to Synchrotron Interactive Timeline ALS History: The First 20 Years

  10. history

    National Nuclear Security Administration (NNSA)

    several contributions over SRS's history, including large-scale production of aluminum-lithium alloys; production of kilogram quantities of radioactive waste glass; materials...

  11. history

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

    Volume One Film Collection Volume Two 75th Anniversary Hydropower in the Northwest Woody Guthrie Videos Strategic Direction Branding & Logos Power of the River History Book...

  12. History

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

    Nuclear Physics » Isotopes » History History Isotopes produced at Los Alamos National Laboratory are saving lives, advancing cutting-edge research and keeping the U.S. safe. History isotopes Proton-induced nuclear reactions at 800 and 100 megaelectronvolts (MeV). At energies of up to 100 MeV, protons cause the release of one or several neutrons and sometimes the release of a proton or an alpha particle in addition to neutrons. At 800 MeV, protons include spallation reactions that break apart

  13. QUARTER SH OR T-T ER M EN ER GY OU TL OO K QUAR TERL Y PROJ

    Gasoline and Diesel Fuel Update (EIA)

    1 2 QUARTER SH OR T-T ER M EN ER GY OU TL OO K QUAR TERL Y PROJ ECTIO NS ENERGY INFORMA TION ADMINIST RATION May 1991 This publication may be purchased from the Superintendent of Documents, U.S. Government Printing Office. Purchasing in formation for this or other Energy Information Administration (EIA) publications may be obtained from the Government Printing Office or ElA's National Energy Information Center. Questions on energy statistics should be directed to the Center by mail, telephone,

  14. Vertical Axis Wind Turbine

    Energy Science and Technology Software Center (OSTI)

    2002-04-01

    Blade fatigue life is an important element in determining the economic viability of the Vertical-Axis Wind Turbine (VAWT). VAWT-SAL Vertical Axis Wind Turbine- Stochastic Aerodynamic Loads Ver 3.2 numerically simulates the stochastic (random0 aerodynamic loads of the Vertical-Axis Wind Turbine (VAWT) created by the atomspheric turbulence. The program takes into account the rotor geometry, operating conditions, and assumed turbulence properties.

  15. Vertical axis wind turbines

    DOE Patents [OSTI]

    Krivcov, Vladimir (Miass, RU); Krivospitski, Vladimir (Miass, RU); Maksimov, Vasili (Miass, RU); Halstead, Richard (Rohnert Park, CA); Grahov, Jurij (Miass, RU)

    2011-03-08

    A vertical axis wind turbine is described. The wind turbine can include a top ring, a middle ring and a lower ring, wherein a plurality of vertical airfoils are disposed between the rings. For example, three vertical airfoils can be attached between the upper ring and the middle ring. In addition, three more vertical airfoils can be attached between the lower ring and the middle ring. When wind contacts the vertically arranged airfoils the rings begin to spin. By connecting the rings to a center pole which spins an alternator, electricity can be generated from wind.

  16. Proj. Plan Example SEM

    Energy Savers [EERE]

    (DOE) CUSTOMER INFORMATION TECHNOLOGY (IT) SUPPORT SYSTEM (CITSS) Project Plan December 1997 U. S. DEPARTMENT OF ENERGY Office of the Chief Information Officer and Headquarters Collaboration Group Change Control Page The change control page will be used to record information for controlling and tracking modifications made to this document. Revision Date: 12/15/97 Author: Brian Field a. Section(s): 2.3 Page Number(s): 2-2 through 2-4 Summary of Change(s): Updated roles and responsibilities chart

  17. Dual Axis Radiographic Hydrodynamic Test Facility | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration Dual Axis Radiographic Hydrodynamic Test Facility | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases

  18. Vertical axis wind turbine airfoil

    DOE Patents [OSTI]

    Krivcov, Vladimir; Krivospitski, Vladimir; Maksimov, Vasili; Halstead, Richard; Grahov, Jurij Vasiljevich

    2012-12-18

    A vertical axis wind turbine airfoil is described. The wind turbine airfoil can include a leading edge, a trailing edge, an upper curved surface, a lower curved surface, and a centerline running between the upper surface and the lower surface and from the leading edge to the trailing edge. The airfoil can be configured so that the distance between the centerline and the upper surface is the same as the distance between the centerline and the lower surface at all points along the length of the airfoil. A plurality of such airfoils can be included in a vertical axis wind turbine. These airfoils can be vertically disposed and can rotate about a vertical axis.

  19. Two-axis angular effector

    DOE Patents [OSTI]

    Vaughn, Mark R. (Albuquerque, NM); Robinett, III, Rush D. (Tijeras, NM); Phelan, John R. (Albuquerque, NM); Van Zuiden, Don M. (Albuquerque, NM)

    1997-01-21

    A new class of coplanar two-axis angular effectors. These effectors combine a two-axis rotational joint analogous to a Cardan joint with linear actuators in a manner to produce a wider range of rotational motion about both axes defined by the joint. This new class of effectors also allows design of robotic manipulators having very high strength and efficiency. These effectors are particularly suited for remote operation in unknown surroundings, because of their extraordinary versatility. An immediate application is to the problems which arise in nuclear waste remediation.

  20. Three axis velocity probe system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV); Smith, Jr., Nelson S. (Morgantown, WV); Utt, Carroll E. (Morgantown, WV)

    1992-01-01

    A three-axis velocity probe system for determining three-axis positional velocities of small particles in fluidized bed systems and similar applications. This system has a sensor head containing four closely-spaced sensing electrodes of small wires that have flat ends to establish a two axis plane, e.g. a X-Y plane. Two of the sensing electrodes are positioned along one of the axes and the other two are along the second axis. These four sensing electrodes are surrounded by a guard electrode, and the outer surface is a ground electrode and support member for the sensing head. The electrodes are excited by, for example, sinusoidal voltage having a peak-to-peak voltage of up to 500 volts at a frequency of 2 MHz. Capacitive currents flowing between the four sensing electrodes and the ground electrode are influenced by the presence and position of a particle passing the sensing head. Any changes in these currents due to the particle are amplified and synchronously detected to produce positional signal values that are converted to digital form. Using these digital forms and two values of time permit generation of values of the three components of the particle vector and thus the total velocity vector.

  1. Dual Axis Radiographic Hydrodynamic Test Facility | National...

    National Nuclear Security Administration (NNSA)

    Dual Axis Radiographic Hydrodynamic Test Facility | National Nuclear Security ... Home About Us Our Programs Defense Programs Research, Development, Test, and ...

  2. Flexible helical-axis stellarator

    DOE Patents [OSTI]

    Harris, Jeffrey H. (Oak Ridge, TN); Hender, Timothy C. (Abingdon, GB2); Carreras, Benjamin A. (Oak Ridge, TN); Cantrell, Jack L. (Oak Ridge, TN); Morris, Robert N. (Oak Ridge, TN)

    1988-01-01

    An 1=1 helical winding which spirals about a conventional planar, circular central conductor of a helical-axis stellarator adds a significant degree of flexibility by making it possible to control the rotational transform profile and shear of the magnetic fields confining the plasma in a helical-axis stellarator. The toroidal central conductor links a plurality of toroidal field coils which are separately disposed to follow a helical path around the central conductor in phase with the helical path of the 1=1 winding. This coil configuration produces bean-shaped magnetic flux surfaces which rotate around the central circular conductor in the same manner as the toroidal field generating coils. The additional 1=1 winding provides flexible control of the magnetic field generated by the central conductor to prevent the formation of low-order resonances in the rotational transform profile which can produce break-up of the equilibrium magnetic surfaces. Further, this additional winding can deepen the magnetic well which together with the flexible control provides increased stability.

  3. History Images

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

    History Images Los Alamos History in Images Los Alamos has a proud history and heritage of almost 70 years of science and innovation. The people of the Laboratory work on advanced technologies to provide the best scientific and engineering solutions to many of the nation's most crucial security challenges. Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Back in the day Back in the day LA bridge in Los

  4. History Gallery

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

    History Gallery History Gallery Exhibits in this gallery capture Laboratory's history of the secret town of Los Alamos and its role with the Manhattan Project. August 18, 2014 museum plan showing the history gallery Los Alamos, once the site of a boys' ranch school, became the focus of the secret project to develop a new weapon, one that derived its power from splitting the atom. The Atomic Age begins The conflict that darkened Europe in the late 1930s at first cast no shadow here on the sunny

  5. Helical axis stellarator with noninterlocking planar coils

    DOE Patents [OSTI]

    Reiman, Allan (Princeton, NJ); Boozer, Allen H. (Rocky Hill, NJ)

    1987-01-01

    A helical axis stellarator using only noninterlocking planar, non-circular coils, generates magnetic fields having a magnetic well and large rotational transform with resultant large equilibrium beta.

  6. Dual Axis Radiographic Hydrodynamic Test Facility

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

    Deputy Group Leader Tim Ferris (505) 665-2179 Email Hydrotests are critical in assessing nuclear weapons in nation's stockpile Dual Axis Radiographic Hydrodynamic Test facility ...

  7. ORISE: History

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

    History The Oak Ridge Institute for Science and Education (ORISE) is a national leader in science education and research, with programs dating back to 1946 and having served as an...

  8. Workshop History

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

    Workshop History The 2014 event is the seventh joint workshop held by the EFCOG ESH Electrical Safety subgroup. The first "joint" Electrical Safety Workshop was held in the summer...

  9. Beam History

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

    Beam History Print Beamline History Request Form To request a beam current histograph from the ALS storage ring beam histograph database, select the year, month, and day, then click on "Submit Request". Histographs are available as far back as February 2, 1994. Year 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17

  10. Beam History

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

    Beam Status Beam History Print Beamline History Request Form To request a beam current histograph from the ALS storage ring beam histograph database, select the year, month, and day, then click on "Submit Request". Histographs are available as far back as February 2, 1994. Year 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day 01 02 03 04 05 06 07 08 09 10 11 12 13

  11. Beam History

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

    Beam History Print Beamline History Request Form To request a beam current histograph from the ALS storage ring beam histograph database, select the year, month, and day, then click on "Submit Request". Histographs are available as far back as February 2, 1994. Year 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17

  12. Actuator assembly including a single axis of rotation locking member

    DOE Patents [OSTI]

    Quitmeyer, James N.; Benson, Dwayne M.; Geck, Kellan P.

    2009-12-08

    An actuator assembly including an actuator housing assembly and a single axis of rotation locking member fixedly attached to a portion of the actuator housing assembly and an external mounting structure. The single axis of rotation locking member restricting rotational movement of the actuator housing assembly about at least one axis. The single axis of rotation locking member is coupled at a first end to the actuator housing assembly about a Y axis and at a 90.degree. angle to an X and Z axis providing rotation of the actuator housing assembly about the Y axis. The single axis of rotation locking member is coupled at a second end to a mounting structure, and more particularly a mounting pin, about an X axis and at a 90.degree. angle to a Y and Z axis providing rotation of the actuator housing assembly about the X axis. The actuator assembly is thereby restricted from rotation about the Z axis.

  13. SCADA History

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

    History - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

  14. User's manual for the vertical axis wind turbine performance...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: User's manual for the vertical axis wind turbine performance computer code darter Citation Details In-Document Search Title: User's manual for the vertical axis...

  15. User's manual for the vertical axis wind turbine performance...

    Office of Scientific and Technical Information (OSTI)

    User's manual for the vertical axis wind turbine performance computer code darter Citation Details In-Document Search Title: User's manual for the vertical axis wind turbine...

  16. DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility

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

    DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT, supports a critical component of LANL's primary mission: to...

  17. Enclosed, off-axis solar concentrator

    DOE Patents [OSTI]

    Benitez, Pablo; Grip, Robert E; Minano, Juan C; Narayanan, Authi A; Plesniak, Adam; Schwartz, Joel A

    2013-11-26

    A solar concentrator including a housing having receiving wall, a reflecting wall and at least two end walls, the receiving, reflecting and end walls defining a three-dimensional volume having an inlet, wherein a vertical axis of the housing is generally perpendicular to the inlet, a receiver mounted on the receiving wall of the housing, the receiver including at least one photovoltaic cell, wherein a vertical axis of the receiver is disposed at a non-zero angle relative to the vertical axis of the housing, at least one clip disposed on the reflecting wall an optical element received within the three-dimensional volume, the optical element including at least one tab, the tab being engaged by the clip to align the optical element with the receiver, and a window received over the inlet to enclose the housing.

  18. Modular off-axis solar concentrator

    DOE Patents [OSTI]

    Plesniak, Adam P; Hall, John C

    2015-01-27

    A solar concentrator including a housing defining a vertical axis and including a receiving wall connected to a reflecting wall to define an internal volume and an opening into the internal volume, wherein the reflecting wall defines at least one primary optical element, and wherein at least a portion of the reflecting wall includes a layer of reflective material, the housing further including a cover connected to the receiving wall and the reflecting wall to seal the opening, and at least one receiver mounted on the receiving wall such that a vertical axis of the receiver is disposed at a non-zero angle relative to the vertical axis of the housing, the receiver including at least one photovoltaic cell.

  19. Making History

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

    YGG 05-0181 Making History It's hard to imagine . . . . . . an entire city existing in secret. . . . 60,000 acres set aside for one, top-secret purpose. . . . a discovery so huge it could end a World War. It's hard to imagine - but it's true. Ray Smith * Y-12 Projects Division; Historian * oak riDge, tennessee Calutron: Designed by ernest orlando (e.o.) Lawrence to separate the isotopes of Uranium 235 (U-235) from naturally occurring uranium, where the majority is Uranium 238 (U-238). U-235 is

  20. High payload six-axis load sensor

    DOE Patents [OSTI]

    Jansen, John F. (Knoxville, TN); Lind, Randall F. (Knoxville, TN)

    2003-01-01

    A repairable high-payload six-axis load sensor includes a table, a base, and at least three shear-pin load transducers removably mounted between the table and the base. Removable mounting permits easy replacement of damaged shear pins. Preferably, the shear-pin load transducers are responsive to shear forces imparted along the two axes perpendicular to an axis of minimum sensitivity characteristic of the transducer. Responsive to an applied shear force, each shear-pin load transducer can produce an electrical signal proportional to the reaction force. The load sensor can further include a structure for receiving the proportional electrical signals and computing the applied load corresponding to the proportional electrical signals. The computed load can be expressed in terms of a three-dimensional XYZ Cartesian coordinate system.

  1. IR Spectrometer Using 90-degree Off-axis Parabolic Mirrors

    SciTech Connect (OSTI)

    Robert M. Malone, Richard, G. Hacking, Ian J. McKenna, and Daniel H. Dolan

    2008-09-02

    A gated spectrometer has been designed for real-time, pulsed infrared (IR) studies at the National Synchrotron Light ource at the Brookhaven National Laboratory. A pair of 90-degree, off-axis parabolic mirrors are used to relay the light from an entrance slit to an output IR recording camera. With an initial wavelength range of 15004500 nm required, gratings could not be used in the spectrometer because grating orders would overlap. A magnesium oxide prism, placed between these parabolic mirrors, serves as the dispersion element. The spectrometer is doubly telecentric. With proper choice of the air spacing between the prism and the second parabolic mirror, any spectral region of interest within the InSb camera arrays sensitivity region can be recorded. The wavelengths leaving the second parabolic mirror are collimated, thereby relaxing the camera positioning tolerance. To set up the instrument, two different wavelength (visible) lasers are introduced at the entrance slit and made collinear with the optical axis via flip mirrors. After dispersion by the prism, these two laser beams are directed to tick marks located on the outside housing of the gated IR camera. This provides first-order wavelength calibration for the instrument. Light that is reflected off the front prism face is coupled into a high-speed detector to verify steady radiance during the gated spectral imaging. Alignment features include tick marks on the prism and parabolic mirrors. This instrument was designed to complement singlepoint pyrometry, which provides continuous time histories of a small collection of spots from shock-heated targets.

  2. History of Hydropower | Department of Energy

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

    History of Hydropower History of Hydropower

  3. Three-axis asymmetric radiation detector system

    DOE Patents [OSTI]

    Martini, Mario Pierangelo (Oak Ridge, TN); Gedcke, Dale A. (Oak Ridge, TN); Raudorf, Thomas W. (Oak Ridge, TN); Sangsingkeow, Pat (Knoxville, TN)

    2000-01-01

    A three-axis radiation detection system whose inner and outer electrodes are shaped and positioned so that the shortest path between any point on the inner electrode and the outer electrode is a different length whereby the rise time of a pulse derived from a detected radiation event can uniquely define the azimuthal and radial position of that event, and the outer electrode is divided into a plurality of segments in the longitudinal axial direction for locating the axial location of a radiation detection event occurring in the diode.

  4. National Women's History Month

    Broader source: Energy.gov [DOE]

    NATIONAL WOMEN’S HISTORY MONTH is an annual declared month that highlights the contributions of women to events in history and contemporary society.

  5. Vertical-Axis Wind Turbine Mesh Generator

    SciTech Connect (OSTI)

    2014-01-24

    VAWTGen is a mesh generator for creating a finite element beam mesh of arbitrary vertical-axis wind turbines (VAWT). The software accepts input files specifying tower and blade structural and aerodynamic descriptions and constructs a VAWT using a minimal set of inputs. VAWTs with an arbitrary number of blades can be constructed with or without a central tower. Strut connections between the tower and blades can be specified in an arbitrary manner. The software also facilitates specifying arbitrary joints between structural components and concentrated structural tenns (mass and stiffness). The output files which describe the VAWT configuration are intended to be used with the Offshore Wind ENergy Simulation (OWENS) Toolkit software for structural dynamics analysis of VAWTs. Furthermore, VAWTGen is useful for visualizing output from the OWENS analysis software.

  6. Two-axis tracking solar collector mechanism

    DOE Patents [OSTI]

    Johnson, K.C.

    1992-12-08

    This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion. 16 figs.

  7. Two-axis tracking solar collector mechanism

    DOE Patents [OSTI]

    Johnson, Kenneth C. (201 W. California Ave. #705, Sunnyvale, CA 94086)

    1992-01-01

    This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

  8. Two-axis tracking solar collector mechanism

    DOE Patents [OSTI]

    Johnson, Kenneth C. (201 W. California Ave., #401, Sunnyvale, CA 94086)

    1990-01-01

    This invention is a novel solar tracking mechanism incorporating a number of practical features that give it superior environmental resilience and exceptional tracking accuracy. The mechanism comprises a lightweight space-frame assembly supporting an array of point-focus Fresnel lenses in a two-axis tracking structure. The system is enclosed under a glass cover which isolates it from environmental exposure and enhances tracking accuracy by eliminating wind loading. Tracking accuracy is also enhanced by the system's broad-based tracking support. The system's primary intended application would be to focus highly concentrated sunlight into optical fibers for transmission to core building illumination zones, and the system may also have potential for photovoltaic or photothermal solar energy conversion.

  9. Vertical-Axis Wind Turbine Mesh Generator

    Energy Science and Technology Software Center (OSTI)

    2014-01-24

    VAWTGen is a mesh generator for creating a finite element beam mesh of arbitrary vertical-axis wind turbines (VAWT). The software accepts input files specifying tower and blade structural and aerodynamic descriptions and constructs a VAWT using a minimal set of inputs. VAWTs with an arbitrary number of blades can be constructed with or without a central tower. Strut connections between the tower and blades can be specified in an arbitrary manner. The software also facilitatesmore » specifying arbitrary joints between structural components and concentrated structural tenns (mass and stiffness). The output files which describe the VAWT configuration are intended to be used with the Offshore Wind ENergy Simulation (OWENS) Toolkit software for structural dynamics analysis of VAWTs. Furthermore, VAWTGen is useful for visualizing output from the OWENS analysis software.« less

  10. Sandia National Laboratories: History: History Reports

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

    Facebook Twitter YouTube Flickr RSS About History Reports Building a Nuclear Ordnance Engineering Lab (slides from presentation to NSF Short Course "The Birthplace and Early...

  11. History of Systems

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

    Org Chart NERSC History Interactive Timeline History of Systems NERSC Stakeholders Usage and User Demographics Careers Visitor Info Web Policies Home » About » NERSC History » History of Systems History of Systems Established in 1974 at Lawrence Livermore National Laboratory, NERSC was moved to Berkeley Lab in 1996 with a goal of increased interactions with the UC Berkeley campus. NERSC Systems System Name Installed System Type CPU Computational Pool Interconnect Disk (TB) Avg. Power Linpack

  12. DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility

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

    DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT: Dual-Axis Radiographic Hydrodynamic Test Facility DARHT, supports a critical component of LANL's primary mission: to ensure the safety, security, and effectiveness of nuclear weapons in our nation's stockpile. Los Alamos scientists built DARHT, the world's most powerful x-ray machine, to analyze mockups of nuclear weapons. At the Los Alamos National Laboratory (LANL), the Dual-Axis Radiographic Hydrodynamic Test Facility, or DARHT,

  13. Three-axis particle impact probe

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV); Smith, Jr., Nelson S. (Morgantown, WV); Utt, Carroll E. (Morgantown, WV)

    1992-01-01

    Three-axis particle impact probes detect particle impact vectors along x-, y-, and z-axes by spherical probe head mounted on the outer end of a shaft that is flexibly mounted in silicone rubber at the top of a housing so as to enable motion imparted to the head upon impact to be transmitted to a grounded electrode secured to the shaft within the housing. Excitable electrodes are mounted in the housing in a fixed position, spaced apart from the ground electrode and forming, with the ground electrode, capacitor pairs. Movement of the ground electrode results in changes in capacitance, and these difference in capacitance are used for measurement or derivation of momentum vectors along each of the three axes. In one embodiment, the ground electrode is mounted at the base of the shaft and is secured to a silicone rubber layer at the top of the housing, providing for cantilevered movement. In another embodiment, the shaft is mounted at its mid point in a flexible bushing so that it undergoes pivotal movement around that point.

  14. Control system for a vertical axis windmill

    DOE Patents [OSTI]

    Brulle, Robert V. (St. Louis County, MO)

    1983-10-18

    A vertical axis windmill having a rotating structure is provided with a series of articulated vertical blades whose positions are controlled to maintain a constant RPM for the rotating structure, when wind speed is sufficient. A microprocessor controller is used to process information on wind speed, wind direction and RPM of the rotating structure to develop an electrical signal for establishing blade position. The preferred embodiment of the invention, when connected to a utility grid, is designed to generate 40 kilowatts of power when exposed to a 20 mile per hour wind. The control system for the windmill includes electrical blade actuators that modulate the blades of the rotating structure. Blade modulation controls the blade angle of attack, which in turn controls the RPM of the rotor. In the preferred embodiment, the microprocessor controller provides the operation logic and control functions. A wind speed sensor provides inputs to start or stop the windmill, and a wind direction sensor is used to keep the blade flip region at 90.degree. and 270.degree. to the wind. The control system is designed to maintain constant rotor RPM when wind speed is between 10 and 40 miles per hour.

  15. Yaw dynamics of horizontal axis wind turbines

    SciTech Connect (OSTI)

    Hansen, A.C. )

    1992-05-01

    Designers of a horizontal axis wind turbine yaw mechanism are faced with a difficult decision. They know that if they elect to use a yaw- controlled rotor then the system will suffer increased initial cost and increased inherent maintenance and reliability problems. On the other hand, if they elect to allow the rotor to freely yaw they known they will have to account for unknown and random, though bounded, yaw rates. They will have a higher-risk design to trade-off against the potential for cost savings and reliability improvement. The risk of a yaw-free system could be minimized if methods were available for analyzing and understanding yaw behavior. The complexity of yaw behavior has, until recently, discouraged engineers from developing a complete yaw analysis method. The objectives of this work are to (1) provide a fundamental understanding of free-yaw mechanics and the design concepts most effective at eliminating yaw problems, and (2) provide tested design tools and guidelines for use by free-yaw wind systems manufacturers. The emphasis is on developing practical and sufficiently accurate design methods.

  16. Innovative Offshore Vertical-Axis Wind Turbine Rotors

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

    Offshore Vertical-Axis Wind Turbine Rotors - Sandia Energy ... Lab Photovoltaic Systems Evaluation Laboratory PV Regional ... Facility Geomechanics and Drilling Labs National ...

  17. MHK Technologies/Horizontal Axis Logarithmic Spiral Turbine ...

    Open Energy Info (EERE)

    Horizontal Axis Logarithmic Spiral Turbine < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Technology Profile Primary Organization Golden...

  18. Bertram Brockhouse, the Triple-axis Spectrometer, and Neutron...

    Office of Scientific and Technical Information (OSTI)

    Bertram Brockhouse, the Triple-axis Spectrometer, and Neutron Spectroscopy Resources with Additional Information Bertram Brockhouse Courtesy of McMaster University Bertram...

  19. Solasta aka The Eagle Axis | Open Energy Information

    Open Energy Info (EERE)

    Zip: 2458 Sector: Efficiency, Solar Product: Start-up planning to produce high-efficiency solar cells using nanoscale elements. References: Solasta (aka The Eagle Axis)1 This...

  20. National Women's History Month

    Broader source: Energy.gov [DOE]

    During Women's History Month, we recall that the pioneering legacy of our grandmothers and great-grandmothers is revealed not only in our museums and history books, but also in the fierce...

  1. HISTORY OF BUILDING 828

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

    1997); and for a summary of the early history of Kirtland Air Force Base, see Don E. Alberts and Allan E. Putnam, A History of Kirtland Air Force Base 1928-1982 (Albuquerque:...

  2. BLACK HISTORY MONTH

    Broader source: Energy.gov [DOE]

    Black History Month is an annual celebration of achievements by black Americans and a time for recognizing the central role of African Americans in U.S. history. The event grew out of “Negro History Week,” created by historian Carter G. Woodson and other prominent African Americans. Other countries around the world, including Canada and the United Kingdom, also devote a month to celebrating black history.

  3. Spin-stabilized magnetic levitation without vertical axis of rotation

    DOE Patents [OSTI]

    Romero, Louis (Albuquerque, NM); Christenson, Todd (Albuquerque, NM); Aaronson, Gene (Albuquerque, NM)

    2009-06-09

    The symmetry properties of a magnetic levitation arrangement are exploited to produce spin-stabilized magnetic levitation without aligning the rotational axis of the rotor with the direction of the force of gravity. The rotation of the rotor stabilizes perturbations directed parallel to the rotational axis.

  4. Off-axis illumination direct-to-digital holography

    DOE Patents [OSTI]

    Thomas, Clarence E.; Price, Jeffery R.; Voelkl, Edgar; Hanson, Gregory R.

    2004-06-08

    Systems and methods are described for off-axis illumination direct-to-digital holography. A method of recording an off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis, includes: reflecting a reference beam from a reference mirror at a non-normal angle; reflecting an object beam from an object at an angle with respect to an optical axis defined by a focusing lens; focusing the reference beam and the object beam at a focal plane of a digital recorder to form the off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis; digitally recording the off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis; Fourier analyzing the recorded off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes by transforming axes of the recorded off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes in Fourier space to sit on top of a heterodyne carrier frequency defined as an angle between the reference beam and the object beam; applying a digital filter to cut off signals around an original origin; and then performing an inverse Fourier transform.

  5. History of Wind Energy | Department of Energy

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

    History of Wind Energy History of Wind Energy

  6. History of Wind Energy | Department of Energy

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

    History of Wind Energy History of Wind Energy

  7. History | Department of Energy

    Energy Savers [EERE]

    About Us » History History The following is a short history recounting the evolution of the project management office within the Department of Energy: The project management office was originally called the Office of Field Management (FM) and was under the purview of the Office of the Chief Financial Officer in the 1990s. In the fiscal year 2000 Energy & Water Development Appropriations, the Senate initiated and the House concurred to eliminate funding for DOE's Office of Field Management.

  8. EIS-0228: Dual Axis Radiographic Hydrodynamic Test (DARHT) Facility

    Broader source: Energy.gov [DOE]

    This EIS evaluates the potential environmental impact of a proposal to construct and operate the Dual Axis Radiographic Hydrodynamic Test (DARHT) facility at Los Alamos National Laboratory (LANL)...

  9. Determination of Elastic Twist in Horizontal Axis Wind Turbines (HAWTs)

    SciTech Connect (OSTI)

    Stoddard, F.; Nelson, V.; Starcher, K.; Andrews, B.

    2006-06-01

    This report presents the results of a project at the Alternative Energy Institute (AEI) which measured and calculated the elastic twist of three representative composite horizontal-axis blades: Carter 300, Gougeon ESI 54, and UTRC 8 kW.

  10. Microscale acceleration history discriminators

    DOE Patents [OSTI]

    Polosky, Marc A. (Albuquerque, NM); Plummer, David W. (Albuquerque, NM)

    2002-01-01

    A new class of micromechanical acceleration history discriminators is claimed. These discriminators allow the precise differentiation of a wide range of acceleration-time histories, thereby allowing adaptive events to be triggered in response to the severity (or lack thereof) of an external environment. Such devices have applications in airbag activation, and other safety and surety applications.

  11. Plasma ionization frequency, edge-to-axis density ratio, and density on axis of a cylindrical gas discharge

    SciTech Connect (OSTI)

    Palacio Mizrahi, J. H.

    2014-06-15

    A rigorous derivation of expressions, starting from the governing equations, for the ionization frequency, edge-to-axis ratio of plasma density, plasma density at the axis, and radially averaged plasma density in a cylindrical gas discharge has been obtained. The derived expressions are simple and involve the relevant parameters of the discharge: Cylinder radius, axial current, and neutral gas pressure. The found expressions account for ion inertia, ion temperature, and changes in plasma ion collisionality.

  12. Hanford History - Hanford Site

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

    About Us Hanford History About Us About Hanford Cleanup Hanford History Hanford Site Wide Programs Contact Us Hanford History Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size The Hanford Site sits on 586-square-miles of shrub-steppe desert in southeastern Washington State. Beginning in 1943, the site was used to produce plutonium for the bomb that brought an end to World War II. After a short lull, production was ramped up in 1947 to meet the challenges of the

  13. History | Department of Energy

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

    About Energy.gov » History History What's New in History July 28, 2015: Draft Memorandum of Agreement between DOE and NPS posted July 28, 2015: Draft Memorandum of Agreement between DOE and NPS posted The NPS posts for comment the draft Memorandum of Agreement between DOE and NPS on its Planning, Environment and Public Comment (PEPC) site. The Park Service also provides a list of Frequently Asked Questions and maps with the initial properties to be included in the park. Read more May 29, 2015:

  14. Departmental History Program

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1992-03-26

    The order describes the DOE history program and establishes policy and objectives for the preservation of historical records and institutional memory for DOE and its predecessor agencies. Cancels DOE 1324.7.

  15. Black History Month

    Broader source: Energy.gov [DOE]

    During National African American History Month, we pay tribute to the contributions of past generations and reaffirm our commitment to keeping the American dream alive for the next generation. In...

  16. About SRNL - Our History

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

    From the Director Operational Excellence Leadership Directorates Our History Visiting SRNL SRNL Home SRNL historic image SRNL historic image About SRNL Our History Evolution of SRNL's Department of Energy Role The Savannah River Site was constructed to produce the basic materials necessary in the fabrication of nuclear weapons, primarily tritium and plutonium-239. Five reactors were also built in an effort to produce these materials for our nation's defense programs. In support of these efforts,

  17. History | Department of Energy

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

    History History The Better Buildings Neighborhood Program was first announced by Vice President Biden as "Retrofit Ramp-Up" on April 21, 2010. The program presented initial awards of $452 million in American Recovery and Reinvestment Act (ARRA or Recovery Act) funding to 25 state and local governments to "ramp up" energy efficiency building retrofits. The Better Buildings Neighborhood Program then distributed a total of $508 million to support hundreds of communities served

  18. History | Department of Energy

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

    About » History History This timeline features the key innovations that have advanced the solar industry in the United States. Learn more about these key events from 1955 to present. To see more details, either drag the timeline to the left or right or click the (+) icons. Solar Achievements Timeline INSTRUCTIONS Instructional graphic for mouse use. Click and drag screen or scroll mouse wheel to navigate through timeline. 2011 INDUSTRY Graphic of the U.S. Department of Energy logo. A yellow,

  19. History | Department of Energy

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

    History History 2015 JULY Mark McCall hired as Executive Director, Loan Programs Office JUNE Loan guarantees issued for Vogtle (MEAG Power) MARCH Conditional commitment for ATVM loan offered to Alcoa FEBRUARY Powering New Markets: Utility-scale Photovoltaic Solar report released 2014 DECEMBER Agua Caliente awarded 2014 Top Plant (Solar) - POWER Magazine Ivanpah awarded Renewable Energy Project of the Year - Pennwell Crescent Dunes awarded Project of the Year, Best Energy/Industrial &

  20. ARM Orientation: Overview and History

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

    ARM Orientation: ARM Orientation: Overview and History Overview and History Mar 2007 ARM Orientation 2 ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement ...

  1. DARHT Axis-I Diode Simulations II: Geometrical Scaling

    SciTech Connect (OSTI)

    Ekdahl, Carl A. Jr.

    2012-06-14

    Flash radiography of large hydrodynamic experiments driven by high explosives is a venerable diagnostic technique in use at many laboratories. Many of the largest hydrodynamic experiments study mockups of nuclear weapons, and are often called hydrotests for short. The dual-axis radiography for hydrodynamic testing (DARHT) facility uses two electron linear-induction accelerators (LIA) to produce the radiographic source spots for perpendicular views of a hydrotest. The first of these LIAs produces a single pulse, with a fixed {approx}60-ns pulsewidth. The second axis LIA produces as many as four pulses within 1.6-{micro}s, with variable pulsewidths and separation. There are a wide variety of hydrotest geometries, each with a unique radiographic requirement, so there is a need to adjust the radiographic dose for the best images. This can be accomplished on the second axis by simply adjusting the pulsewidths, but is more problematic on the first axis. Changing the beam energy or introducing radiation attenuation also changes the spectrum, which is undesirable. Moreover, using radiation attenuation introduces significant blur, increasing the effective spot size. The dose can also be adjusted by changing the beam kinetic energy. This is a very sensitive method, because the dose scales as the {approx}2.8 power of the energy, but it would require retuning the accelerator. This leaves manipulating the beam current as the best means for adjusting the dose, and one way to do this is to change the size of the cathode. This method has been proposed, and is being tested. This article describes simulations undertaken to develop scaling laws for use as design tools in changing the Axis-1 beam current by changing the cathode size.

  2. ESnet IPv6 History

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

    History Engineering Services The Network OSCARS Fasterdata IPv6 Network IPv6 Implementation Checklist ESnet IPv6 Mirror Servers ESnet IPv6 History ESnet supports Sandia and APNIC IPv6 Background Radiation research Network Performance Tools The ESnet Engineering Team Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net ESnet IPv6

  3. LANSCE | About | History

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

    History The History of LANSCE Since 1972, the 800-million-electron-volt (MeV) accelerator and its attendant facilities at Technical Area 53 (TA-53, often referred to as "the Mesa") at Los Alamos National Laboratory have been a resource to a broad international community of scientific researchers. The Los Alamos Meson Physics Facility (LAMPF), as it was originally called, hosted about 1000 users per year to to perform medium energy physics experiments. In 1977, a pulsed spallation

  4. History | Department of Energy

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

    History History Although they are tiny, atoms have a large amount of energy holding their nuclei together. Certain isotopes of some elements can be split and will release part of their energy as heat. This splitting is called fission. The heat released in fission can be used to help generate electricity in powerplants. Uranium-235 (U-235) is one of the isotopes that fissions easily. During fission, U-235 atoms absorb loose neutrons. This causes U-235 to become unstable and split into two light

  5. History | Department of Energy

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

    History History The U. S. Army Corps of Engineers began acquiring land, in the area that became Oak Ridge, in October 1942 for the Manhattan Project. By March 1943, 56,000 acres were sealed behind fences and major industrial facilities were under construction. The K-25, S-50, and Y-12 plants were all built to separate the fissile isotope uranium-235 from uranium-238, while the X-10 site was established as a pilot plant for the Graphite Reactor. Throughout the next six decades the three major

  6. Vertical-axis wind turbines -- The current status of an old technology

    SciTech Connect (OSTI)

    Berg, D.E.

    1996-12-31

    Vertical-axis wind turbine technology is not well understood, even though the earliest wind machines rotated about a vertical axis. The operating environment of a vertical-axis wind turbine is quite complex, but detailed analysis capabilities have been developed and verified over the last 30 years. Although vertical-axis technology has not been widely commercialized, it exhibits both advantages and disadvantages compared to horizontal-axis technology, and in some applications, it appears to offer significant advantages.

  7. Quantum histories without contrary inferences

    SciTech Connect (OSTI)

    Losada, Marcelo; Laura, Roberto

    2014-12-15

    In the consistent histories formulation of quantum theory it was shown that it is possible to retrodict contrary properties. We show that this problem do not appear in our formalism of generalized contexts for quantum histories. - Highlights: We prove ordinary quantum mechanics has no contrary properties. Contrary properties in consistent histories are reviewed. We prove generalized contexts for quantum histories have no contrary properties.

  8. History of Air Conditioning

    Broader source: Energy.gov [DOE]

    We take it for granted but what would life be like without the air conditioner? Once considered a luxury, this invention is now an essential, allowing us to cool everything from homes, businesses, businesses, data centers, laboratories and other buildings vital to our daily lives. Explore this timeline to learn some of the key dates in the history of air conditioning.

  9. VERSATILE TWO-AXIS OPEN-LOOP SOLAR TRACKER CONTROLLER*

    SciTech Connect (OSTI)

    Ward, Christina D; Maxey, L Curt; Evans III, Boyd Mccutchen; Lapsa, Melissa Voss

    2008-01-01

    A versatile single-board controller for two-axis solar tracking applications has been developed and tested on operating solar tracking systems with over two years of field experience. The operating experience gained from the two systems and associated modifications are discussed as representative examples of the practical issues associated with implementing a new two-axis solar tracker design. In this research, open and closed loop control methods were evaluated; however, only the open loop method met the 0.125 tracking accuracy requirement and the requirement to maintain pointing accuracy in hazy and scattered cloudy skies. The open loop algorithm was finally implemented in a microcontroller-based tracking system. Methods of applying this controller hardware to different tracker geometries and hardware are discussed along with the experience gained to date.

  10. Tuning the DARHT Axis-II linear induction accelerator focusing

    SciTech Connect (OSTI)

    Ekdahl, Carl A.

    2012-04-24

    Flash radiography of large hydrodynamic experiments driven by high explosives is a well-known diagnostic technique in use at many laboratories, and the Dual-Axis Radiography for Hydrodynamic Testing (DARHT) facility at Los Alamos produces flash radiographs of large hydrodynamic experiments. Two linear induction accelerators (LIAs) make the bremsstrahlung radiographic source spots for orthogonal views of each test. The 2-kA, 20-MeV Axis-I LIA creates a single 60-ns radiography pulse. The 1.7-kA, 16.5-MeV Axis-II LIA creates up to four radiography pulses by kicking them out of a longer pulse that has a 1.6-{mu}s flattop. The Axis-II injector, LIA, kicker, and downstream transport (DST) to the bremsstrahlung converter are described. Adjusting the magnetic focusing and steering elements to optimize the electron-beam transport through an LIA is often called 'tuning.' As in all high-current LIAs, the focusing field is designed to be as close to that of the ideal continuous solenoid as physically possible. In ideal continuous solenoidal transport a smoothly varying beam size can easily be found for which radial forces balance, and the beam is said to be 'matched' to the focusing field. A 'mismatched' beam exhibits unwanted oscillations in size, which are a source of free energy that contributes to emittance growth. This is undesirable, because in the absence of beam-target effects, the radiographic spot size is proportional to the emittance. Tuning the Axis-II LIA is done in two steps. First, the solenoidal focusing elements are set to values designed to provide a matched beam with little or no envelope oscillations, and little or no beam-breakup (BBU) instability growth. Then, steering elements are adjusted to minimize the motion of the centroid of a well-centered beam at the LIA exit. This article only describes the design of the tune for the focusing solenoids. The DARHT Axis-II LIA was required to be re-tuned after installing an accelerator cell to replace a failed solenoid in March of 2012. We took advantage of this opportunity to improve the design of the focusing tune with better models of the remaining partially failed solenoids, better estimates of beam initial conditions, and better values for pulsed-power voltages. As with all previous tunes for Axis-II, this one incorporates measures to mitigate beam-breakup (BBU) instability, image displacement instability (IDI), corkscrew (sweep), and emittance growth. Section II covers the general approach to of design of focusing solenoid tunes for the DARHT Axis-2 LIA. Section III explains the specific requirements and simulations needed to design the tune for the injector, which includes the thermionic electron source, diode, and six induction cells. Section IV explains the requirements and simulations for tuning the main accelerator, which consists of 68 induction cells. Finally, Section V explores sensitivity of the tune to deviations of parameters from nominal, random variations, and uncertainties in values. Four appendices list solenoid settings for this new tune, discuss comparisons of different simulation codes, show halo formation in mismatched beams, and present a brief discussion of the beam envelope equation, which is the heart of the method used to design LIA solenoid tunes.

  11. On the spin-axis dynamics of a Moonless Earth

    SciTech Connect (OSTI)

    Li, Gongjie; Batygin, Konstantin

    2014-07-20

    The variation of a planet's obliquity is influenced by the existence of satellites with a high mass ratio. For instance, Earth's obliquity is stabilized by the Moon and would undergo chaotic variations in the Moon's absence. In turn, such variations can lead to large-scale changes in the atmospheric circulation, rendering spin-axis dynamics a central issue for understanding climate. The relevant quantity for dynamically forced climate change is the rate of chaotic diffusion. Accordingly, here we re-examine the spin-axis evolution of a Moonless Earth within the context of a simplified perturbative framework. We present analytical estimates of the characteristic Lyapunov coefficient as well as the chaotic diffusion rate and demonstrate that even in absence of the Moon, the stochastic change in Earth's obliquity is sufficiently slow to not preclude long-term habitability. Our calculations are consistent with published numerical experiments and illustrate the putative system's underlying dynamical structure in a simple and intuitive manner.

  12. Innovative Offshore Vertical-Axis Wind Turbine Rotors

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

    Offshore Vertical-Axis Wind Turbine Rotors - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management

  13. Off-Axis Parabola Inserter - Laboratory for Laser Energetics

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

    Axis Parabola Inserter - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE LLE Tours LLE Building Map Partnerships Careers Education Undergraduate Program Graduate Program High School Program Faculty Contacts Computational Astrophysics H-E-D Physics Inertial Confinement Fusion Laser-Plasma Interaction Radiative Hydrodynamics Plasma Astrophysics Organization Director's Office Laser

  14. Energy/Water History

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

    History - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

  15. History - 88-Inch Cyclotron

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

    History Lawrence's original Cyclotron, for which he received a patent and the Nobel Prize. Lawrence's original cyclotron design was limited to energies where relativistic effects were not important. The third generation cyclotron included "sector-focusing" to allow higher energies to be obtained. The 88-Inch Cyclotron was based on Lawrence's design of a sector-focused cyclotron for the MTA project at Livermore. 1500 man-hours of work were necessary to assemble the trim coils which help

  16. History of the Lightbulb | Department of Energy

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

    Lightbulb History of the Lightbulb Read more about the History of the Light Bulb.

  17. ARM Orientation: Overview and History

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

    Mar 2007 ARM Orientation 14 Where did ARM come from? Where did ARM come from? A nutshell history A nutshell history ICRCCM-1: Intercomparison of Radiation Codes in Climate Models...

  18. Our History | Department of Energy

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

    History Our History Our History The history of Office of Electricity Delivery and Energy Reliability (OE) begins in August 2003, when the Department created two offices to provide focus in several critical areas: the Office of Electric Transmission and Distribution (TD), which included elements from the DOE Energy Efficiency and Renewable Energy office and the DOE Policy and International Affairs office, to advance the technologies needed to ensure a reliable, robust and modern U.S. electricity

  19. History Publications | Department of Energy

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

    History Publications History Publications History Publications Since its establishment in 1957, the Office of History and Heritage Resources (OHHR) has consistently sought to maintain a level of excellence in its publications that meets all scholarly standards and yet is accessible to the general public. At the same time, OHHR has partnered with DOE program offices and field sites to provide historical products that are useful and fill specific departmental needs. In this effort, OHHR has

  20. Torque ripple in a Darrieus, vertical axis wind turbine

    SciTech Connect (OSTI)

    Reuter, R.C. Jr.

    1980-09-01

    Interaction between a steady wind and a rotating, Darrieus, vertical axis wind turbine produces time periodic aerodynamic loads which cause time dependent torque variations, referred to as torque ripple, to occur in the mechanical link between the turbine and the electrical generator. There is concern for the effect of torque ripple upon fatigue life of drive train components and upon power quality. An analytical solution characterizing the phenomenon of torque ripple has been obtained which is based upon a Fourier expansion of the time dependent features of the problem. Numerical results for torque ripple, some experimental data, determination of acceptable levels and methods of controlling it, are presented and discussed.

  1. Axis-1 diode simulations I: standard 2-inch cathode

    SciTech Connect (OSTI)

    Ekdahl, Carl [Los Alamos National Laboratory

    2011-01-11

    The standard configuration of the DARHT Axis-I diode features a 5.08-cm diameter velvet emitter mounted in the flat surface of the cathode shroud. The surface of the velvet is slightly recessed {approx}2.5 mm. This configuration produces a 1.75 kA beam when a 3.8-MV pulse is applied to the anode-cathode (AK) gap. This note addresses some of the physics of this diode through the use of finite-element simulations.

  2. Lifting surface performance analysis for horizontal axis wind turbines

    SciTech Connect (OSTI)

    Kocurek, D.

    1987-06-01

    This report describes how numerical lifting-surface theory is applied to the calculation of a horizontal-axis wind turbine's aerodynamic characteristics and performance. The report also describes how such an application is implemented as a computer program. The method evolved from rotary-wing and helicopter applications and features a detailed, prescribed wake. The wake model extends from a hovering-rotor experimental generalization to include the effect of the windmill brake state on the radial and axial displacement rates of the trailing vortex system. Performance calculations are made by coupling the lifting-surface circulation solution to a blade-element analysis that incorporates two-dimensional airfoil characteristics as functions of angle of attack and Reynolds number. Several analytical stall models are also provided to extend the airfoil characteristics beyond the limits of available data. Although this work focuses on the steady-performance problem, the method includes ways to investigate the effects of wind-shear profile, tower shadow, and off-axis shaft alignment. Correlating the method to measured wind-turbine performance, and comparing it to blade-element momentum theory calculations, validate and highlight the extreme sensitivity of predictions to the quality of early post-stall airfoil behavior.

  3. RF generation in the DARHT Axis-II beam dump

    SciTech Connect (OSTI)

    Ekdahl, Carl A. Jr.

    2012-05-03

    We have occasionally observed radio-frequency (RF) electromagnetic signals in the downstream transport (DST) of the second axis linear induction accelerator (LIA) at the dual-axis radiographic hydrodynamic testing (DARHT) facility. We have identified and eliminated some of the sources by eliminating the offending cavities. However, we still observe strong RF in the range 1 GHz t0 2 GHz occurring late in the {approx}2-{micro}s pulse that can be excited or prevented by varying the downstream tune. The narrow frequency width (<0.5%) and near exponential growth at the dominant frequency is indicative of a beam-cavity interaction, and electro-magnetic simulations of cavity structure show a spectrum rich in resonances in the observed frequency range. However, the source of beam produced RF in the cavity resonance frequency range has not been identified, and it has been the subject of much speculation, ranging from beam-plasma or beam-ion instabilities to unstable cavity coupling.

  4. Eight Pulse Performance of DARHT Axis II - Preliminary Results

    SciTech Connect (OSTI)

    Schulze, Martin E.

    2015-12-08

    The DARHT-II accelerator produces a 1.65-kA, 17-MeV beam in a 1600-ns pulse. Standard operation of the DARHT Axis II accelerator involves extracting four short pulses from the 1.6 us long macro-pulse produced by the LIA. The four short pulses are extracted using a fast kicker in combination with a quadrupole septum magnet and then transported for several meters to a high-Z material target for conversion to x-rays for radiography. The ability of the DARHT Axis 2 kicker to produce more than the standard four pulse format has been previously demonstrated. This capability was developed to study potential risks associated with beam transport during an initial commissioning phase at low energy (8 MeV) and low current (1.0 kA).The ability of the kicker to deliver more than four pulses to the target has been realized for many years. This note describes the initial results demonstrating this capability.

  5. Feasibility and optical performance of one axis three positions sun-tracking polar-axis aligned CPCs for photovoltaic applications

    SciTech Connect (OSTI)

    Tang, Runsheng; Yu, Yamei

    2010-09-15

    A new design concept, called one axis three positions sun-tracking polar-axis aligned CPCs (3P-CPCs, in short), was proposed and theoretically studied in this work for photovoltaic applications. The proposed trough-like CPC is oriented in the polar-axis direction, and the aperture is daily adjusted eastward, southward, and westward in the morning, noon and afternoon, respectively, by rotating the CPC trough, to ensure efficient collection of beam radiation nearly all day. To investigate the optical performance of such CPCs, an analytical mathematical procedure is developed to estimate daily and annual solar gain captured by such CPCs based on extraterrestrial radiation and monthly horizontal radiation. Results show that the acceptance half-angle of 3P-CPCs is a unique parameter to determine their optical performance according to extraterrestrial radiation, and the annual solar gain stays constant if the acceptance half-angle, {theta}{sub a}, is less than one third of {omega}{sub 0,min}, the sunset hour angle in the winter solstice, otherwise decreases with the increase of {theta}{sub a}. For 3P-CPCs used in China, the annual solar gain, depending on the climatic conditions in site, decreased with the acceptance half-angle, but such decrease was slow for the case of {theta}{sub a}{<=}{omega}{sub 0,min}/3, indicating that the acceptance half-angle should be less than one third of {omega}{sub 0,min} for maximizing annual energy collection. Compared to fixed east-west aligned CPCs (EW-CPCs) with a yearly optimal acceptance half-angle, the fixed south-facing polar-axis aligned CPCs (1P-CPCs) with the same acceptance half-angle as the EW-CPCs annually collected about 65-74% of that EW-CPCs did, whereas 3P-CPCs annually collected 1.26-1.45 times of that EW-CPCs collected, indicating that 3P-CPCs were more efficient for concentrating solar radiation onto their coupling solar cells. (author)

  6. Dual axis translation apparatus and system for translating an optical beam and related method

    DOE Patents [OSTI]

    Cassidy, Kelly (Manteca, CA)

    1991-01-01

    A dual axis translation device and system in accordance with this invention, for translating an optical beam along both an x-axis and a y-axis which are perpendicular to one another, has a beam directing means acting on said optical beam for directing the beam along a particular path transverse to said x and y axes. An arrangement supporting said beam directing means for movement in the x and y direction within a given plane is provided. The arrangement includes a first means for translating said beam directing means along the x-axis in said given plane in order to translate the beam along said x-axis. The arrangement comprises a second means for translating said beam directing means along the y-axis in said given plane in order to translate the beam along said y-axis.

  7. Nonlinear characterization of a single-axis acoustic levitator

    SciTech Connect (OSTI)

    Andrade, Marco A. B.; Ramos, Tiago S.; Okina, Fbio T. A.; Adamowski, Julio C.

    2014-04-15

    The nonlinear behavior of a 20.3 kHz single-axis acoustic levitator formed by a Langevin transducer with a concave radiating surface and a concave reflector is experimentally investigated. In this study, a laser Doppler vibrometer is applied to measure the nonlinear sound field in the air gap between the transducer and the reflector. Additionally, an electronic balance is used in the measurement of the acoustic radiation force on the reflector as a function of the distance between the transducer and the reflector. The experimental results show some effects that cannot be described by the linear acoustic theory, such as the jump phenomenon, harmonic generation, and the hysteresis effect. The influence of these nonlinear effects on the acoustic levitation of small particles is discussed.

  8. Dual-axis resonance testing of wind turbine blades

    SciTech Connect (OSTI)

    Hughes, Scott; Musial, Walter; White, Darris

    2014-01-07

    An apparatus (100) for fatigue testing test articles (104) including wind turbine blades. The apparatus (100) includes a test stand (110) that rigidly supports an end (106) of the test article (104). An actuator assembly (120) is attached to the test article (104) and is adapted for substantially concurrently imparting first and second forcing functions in first and second directions on the test article (104), with the first and second directions being perpendicular to a longitudinal axis. A controller (130) transmits first and second sets of displacement signals (160, 164) to the actuator assembly (120) at two resonant frequencies of the test system (104). The displacement signals (160, 164) initiate the actuator assembly (120) to impart the forcing loads to concurrently oscillate the test article (104) in the first and second directions. With turbine blades, the blades (104) are resonant tested concurrently for fatigue in the flapwise and edgewise directions.

  9. ARM - Climate Change Through History

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

    Change Through History Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Climate Change Through History Scientists know that there have been many climatic changes throughout the earth's history. For example, the overall temperature across the globe is at least 5.5 degrees Celsius (10 degrees

  10. Our History | Department of Energy

    Energy Savers [EERE]

    About Us » Our History Our History The Office of Hearings and Appeals is the central adjudicative forum for the Department of Energy. The Secretary of Energy has delegated to the OHA Director the authority to act for him in many different areas. The OHA Director's decision typically serves as final agency action. During it's over 30-year history, OHA has had broad-ranging subject matter jurisdiction. Originally, OHA's primary function was to consider exceptions and other petitions related to

  11. Phonon mean free path of graphite along the c-axis

    SciTech Connect (OSTI)

    Wei, Zhiyong; Yang, Juekuan; Chen, Weiyu; Bi, Kedong; Chen, Yunfei, E-mail: yunfeichen@seu.edu.cn [Jiangsu Key Laboratory for Design and Manufacture of Micro/Nano Biomedical Instruments and School of Mechanical Engineering, Southeast University, Nanjing 210096 (China); Li, Deyu, E-mail: deyu.li@vanderbilt.edu [Department of Mechanical Engineering, Vanderbilt University, Nashville, Tennessee 37235-1592 (United States)

    2014-02-24

    Phonon transport in the c-axis direction of graphite thin films has been studied using non-equilibrium molecular dynamics (MD) simulation. The simulation results show that the c-axis thermal conductivities for films of thickness ranging from 20 to 500 atomic layers are significantly lower than the bulk value. Based on the MD data, a method is developed to construct the c-axis thermal conductivity as an accumulation function of phonon mean free path (MFP), from which we show that phonons with MFPs from 2 to 2000?nm contribute ?80% of the graphite c-axis thermal conductivity at room temperature, and phonons with MFPs larger than 100?nm contribute over 40% to the c-axis thermal conductivity. These findings indicate that the commonly believed value of just a few nanometers from the simple kinetic theory drastically underestimates the c-axis phonon MFP of graphite.

  12. Static-stress analysis of dual-axis confinement vessel

    SciTech Connect (OSTI)

    Bultman, D.H.

    1992-11-01

    This study evaluates the static-pressure containment capability of a 6-ft-diameter, spherical vessel, made of HSLA-100 steel, to be used for high-explosive (HE) containment. The confinement vessel is designed for use with the Dual-Axis Radiographic Hydrotest Facility (DARHT) being developed at Los Alamos National Laboratory. Two sets of openings in the vessel are covered with x-ray transparent covers to allow radiographic imaging of an explosion as it occurs inside the vessel. The confinement vessel is analyzed as a pressure vessel based on the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, and the Welding Research Council Bulletin, WRC-107. Combined stresses resulting from internal pressure and external loads on nozzles are calculated and compared with the allowable stresses for HSLA-100 steel. Results confirm that the shell and nozzles of the confinement vessel are adequately designed to safely contain the maximum residual pressure of 1675 psi that would result from an HE charge of 24.2 kg detonated in a vacuum. Shell stresses at the shell-to-nozzle interface, produced from external loads on the nozzles, were less than 400 psi. The maximum combined stress resulting from the internal pressure plus external loads was 16,070 psi, which is less than half the allowable stress of 42,375 psi for HSLA-100 steel.

  13. Static-stress analysis of dual-axis safety vessel

    SciTech Connect (OSTI)

    Bultman, D.H.

    1992-11-01

    An 8-ft-diameter safety vessel, made of HSLA-100 steel, is evaluated to determine its ability to contain the quasi-static residual pressure from a high-explosive (HE) blast. The safety vessel is designed for use with the Dual-Axis Radiographic Hydrotest (DARHT) facility being developed at Los Alamos National Laboratory. A smaller confinement vessel fits inside the safety vessel and contains the actual explosion, and the safety vessel functions as a second layer of containment in the unlikely case of a confinement vessel leak. The safety vessel is analyzed as a pressure vessel based on the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, and the Welding Research Council Bulletin, WRC107. Combined stresses that result from internal pressure and external loads on nozzles are calculated and compared to the allowable stresses for HSLA-100 steel. Results confirm that the shell and nozzle components are adequately designed for a static pressure of 830 psi, plus the maximum expected external loads. Shell stresses at the shellto-nozzle interface, produced from external loads on the nozzles, were less than 700 psi. The maximum combined stress resulting from the internal pressure plus external loads was 17,384 psi, which is significantly less than the allowable stress of 42,375 psi for HSLA-100 steel.

  14. Control system for a vertical-axis windmill

    DOE Patents [OSTI]

    Brulle, R.V.

    1981-09-03

    A vertical-axis windmill having a rotating structure is provided with a series of articulated vertical blades whose positions are controlled to maintain a constant RPM for the rotating structure, when wind speed is sufficient. A microprocessor controller is used to process information on wind speed, wind direction and RPM of the rotating structure to develop an electrical signal for establishing blade position. The preferred embodiment of the invention, when connected to a utility grid, is designed to generate 40 kilowatts of power when exposed to a 20 mile per hour wind. The control system for the windmill includes electrical blade actuators that modulate the blades of the rotating structure. Blade modulation controls the blade angle of attack, which in turn controls the RPM of the rotor. In the preferred embodiment, the microprocessor controller provides the operation logic and control functions. A wind speed sensor provides inputs to start or stop the windmill, and a wind direction sensor is used to keep the blade flip region at 90 and 270/sup 0/ to the wind. The control system is designed to maintain constant rotor RPM when wind speed is between 10 and 40 miles per hour.

  15. MHK ISDB/Instruments/AXYS HydroLevel Buoy | Open Energy Information

    Open Energy Info (EERE)

    AXYS HydroLevel Buoy < MHK ISDB Jump to: navigation, search MHK Instrumentation & Sensor Database Menu Home Search Add Instrument Add Sensor Add Company Community FAQ Help...

  16. Our History | Department of Energy

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

    History Our History Elk Hills Naval Petroleum Reserve Circa 1920s Elk Hills Naval Petroleum Reserve Circa 1920s The Office of Fossil Energy has the longest directly-traceable history of any organization in the Department of Energy. While the nuclear energy program can look back to the Manhattan Project of World War II for its origins, the Federal Government's involvement in fossil fuel resources began several decades earlier, in the early 1900s. Oil Dominates Early Concerns The U.S.S. Colorado,

  17. IONIZATION SOURCE OF A MINOR-AXIS CLOUD IN THE OUTER HALO OF M82

    SciTech Connect (OSTI)

    Matsubayashi, K.; Taniguchi, Y.; Kajisawa, M.; Shioya, Y.; Sugai, H.; Shimono, A.; Hattori, T.; Ozaki, S.; Yoshikawa, T.; Nagao, T.; Bland-Hawthorn, J.

    2012-12-10

    The M82 ''cap'' is a gas cloud at a projected radius of 11.6 kpc along the minor axis of this well-known superwind source. The cap has been detected in optical line emission and X-ray emission and therefore provides an important probe of the wind energetics. In order to investigate the ionization source of the cap, we observed it with the Kyoto3DII Fabry-Perot instrument mounted on the Subaru Telescope. Deep continuum, H{alpha}, [N II]{lambda}6583/H{alpha}, and [S II]{lambda}{lambda}6716,6731/H{alpha} maps were obtained with subarcsecond resolution. The superior spatial resolution compared to earlier studies reveals a number of bright H{alpha} emitting clouds within the cap. The emission line widths ({approx}< 100 km s{sup -1} FWHM) and line ratios in the newly identified knots are most reasonably explained by slow to moderate shocks velocities (v{sub shock} 40-80 km s{sup -1}) driven by a fast wind into dense clouds. The momentum input from the M82 nuclear starburst region is enough to produce the observed shock. Consequently, earlier claims of photoionization by the central starburst are ruled out because they cannot explain the observed fluxes of the densest knots unless the UV escape fraction is very high (f{sub esc} > 60%), i.e., an order of magnitude higher than observed in dwarf galaxies to date. Using these results, we discuss the evolutionary history of the M82 superwind. Future UV/X-ray surveys are expected to confirm that the temperature of the gas is consistent with our moderate shock model.

  18. Berkeley Lab Marks Black History Month

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

    Berkeley Lab Marks Black History Month Each February Americans celebrate Black History Month, also known as African American History Month, to recognize the importance of Black history in American history. We profile three employees - Jackie Scoggins, Matt Rice, and Thierry Nouidui - who tell their stories of how they came to Berkeley Lab.

  19. Characterization of a multi-axis ion chamber array

    SciTech Connect (OSTI)

    Simon, Thomas A.; Kozelka, Jakub; Simon, William E.; Kahler, Darren; Li, Jonathan; Liu, Chihray

    2010-11-15

    Purpose: The aim of this work was to characterize a multi-axis ion chamber array (IC PROFILER; Sun Nuclear Corporation, Melbourne, FL USA) that has the potential to simplify the acquisition of LINAC beam data. Methods: The IC PROFILER (or panel) measurement response was characterized with respect to radiation beam properties, including dose, dose per pulse, pulse rate frequency (PRF), and energy. Panel properties were also studied, including detector-calibration stability, power-on time, backscatter dependence, and the panel's agreement with water tank measurements [profiles, fractional depth dose (FDD), and output factors]. Results: The panel's relative deviation was typically within ({+-}) 1% of an independent (or nominal) response for all properties that were tested. Notable results were (a) a detectable relative field shape change of {approx}1% with linear accelerator PRF changes; (b) a large range in backscatter thickness had a minimal effect on the measured dose distribution (typically less than 1%); (c) the error spread in profile comparison between the panel and scanning water tank (Blue Phantom, CC13; IBA Schwarzenbruck, DE) was approximately ({+-}) 0.75%. Conclusions: The ability of the panel to accurately reproduce water tank profiles, FDDs, and output factors is an indication of its abilities as a dosimetry system. The benefits of using the panel versus a scanning water tank are less setup time and less error susceptibility. The same measurements (including device setup and breakdown) for both systems took 180 min with the water tank versus 30 min with the panel. The time-savings increase as the measurement load is increased.

  20. Y-12 and uranium history

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

    did happen six days after he was given the assignment. The history of uranium at Y-12 began with that decision, which will be commemorated on September 19, 2012, at...

  1. history | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    history | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home

  2. LPO5-002-Proj-Poster-SLR-MFG-1366

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

    Using new, proprietary manufacturing processes, 1366 Technologies aims to produce higher-quality, lower-cost silicon wafers for solar cells. INVESTING in AMERICAN ENERGY OWNER 1366 ...

  3. doe_netl_completed_proj | netl.doe.gov

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

    ... DE-FC26-06NT42962 Phase 2-Drilling and Production Testing ... Canyon Task Geochemical Evaluation of Deep Sediment Hydrate ... Sediments in Offshore Environments Texas ...

  4. enhanced_oil_current_proj | netl.doe.gov

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

    Enhanced Oil Recovery and Other Oil Resources Enhanced Oil Recovery and Other Oil Resources CO2 EOR | Other EOR & Oil Resources | Environmental | Completed Project Number Project Name Primary Performer DE-FE0010799 Small Molecular Associative Carbon Dioxide (CO2) Thickeners for Improved Mobility Control University of Pittsburgh Enhanced Oil Recovery and Other Oil Resources Other EOR and Oil Resources | CO2 EOR | Environmental | Completed Project Number Project Name Primary Performer

  5. 300_Area_Nanoscale_Research_and_Development Proj.pdf

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

  6. deepwater_current_proj | netl.doe.gov

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

    through Improved Seismic Imaging SEAM Corporation 12121-6001-01 Marine Sources for Air-gun Substitution Texas A&MTEES 11121-5402-01 Integrity Management of Risers to Support ...

  7. LPO5-002-Proj-Poster-CSP-Solana

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

    with 'night-time' solar that allows electricity production for up to 6 hours without the sun. INVESTING in AMERICAN ENERGY OWNERS Abengoa S.A. & Abengoa Solar, LLC LOCATION Gila...

  8. LPO5-002-Proj-Poster-CSP-Mojave

    Energy Savers [EERE]

    MOJAVE Innovative design enhances proven technologies at Mojave, one of the world's largest parabolic trough concentrating solar power plants. INVESTING in AMERICAN ENERGY OWNERS...

  9. LPO5-002-Proj-Poster-CSP-Mojave

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

    MOJAVE Innovative design enhances proven technologies at Mojave, one of the world's largest parabolic trough concentrating solar power plants. INVESTING in AMERICAN ENERGY OWNER Abengoa Yield LOCATION San Bernardino County, California LOAN AMOUNT $1.2 Billion ISSUANCE DATE September 2011 GENERATION CAPACITY 250 MW PROJECTED ANNUAL GENERATION 617,000 MWh CLIMATE BENEFIT 329,000 Metric Tons of C0 2 Prevented Annually

  10. LPO5-002-Proj-Poster-CSP-Solana

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

    storage system provides Solana with 'night-time' solar that allows electricity production for up to 6 hours without the sun. INVESTING in AMERICAN ENERGY OWNERS Abengoa Yield...

  11. LPO5-002-Proj-Poster-ATVM-Ford

    Office of Environmental Management (EM)

    FORD By upgrading 13 facilities across 6 states, Ford was able to meet consumer demand for better fuel e ciency in more than a dozen popular vehicles. OWNER Ford Motor Company LOCATIONS Illinois, Kentucky, Michigan, Missouri, New York, Ohio LOAN AMOUNT $5.9 Billion ISSUANCE DATE September 2009 PERMANENT U.S. JOBS SUPPORTED 33,000 GASOLINE SAVED 268,000,000 Gallons Annually CLIMATE BENEFIT 2,380,000 Metric Tons of C0 2 Prevented Annually INVESTING in AMERICAN ENERGY

  12. LPO5-002-Proj-Poster-ATVM-Nissan

    Office of Environmental Management (EM)

    Nissan North America LOCATIONS Decherd & Smyrna, Tennessee LOAN AMOUNT $1.45 Billion ISSUANCE DATE January 2010 PERMANENT U.S. JOBS SUPPORTED 1,300 GASOLINE SAVED 13,500,000 Gallons Annually CLIMATE BENEFIT 120,000 Metric Tons of C0 2 Prevented Annually NISSAN A new advanced battery manufacturing plant and facility upgrades allowed Nissan to manufacture the all-electric LEAF for America, in America. INVESTING in AMERICAN ENERGY

  13. LPO5-002-Proj-Poster-ATVM-Tesla

    Office of Environmental Management (EM)

    Tesla Motors LOCATION Fremont, California LOAN AMOUNT $465 Million ISSUANCE DATE January 2010 PERMANENT U.S. JOBS SUPPORTED 1,500 GASOLINE SAVED 5,870,000 Gallons Annually CLIMATE BENEFIT 52,000 Metric Tons of C0 2 Prevented Annually TESLA INVESTING in AMERICAN ENERGY With its Model S, Tesla brought the first zero-emission, zero-gas, full-size electric vehicle to market, boosting U.S. advanced auto manufacturing.

  14. LPO5-002-Proj-Poster-BIO-Abengoa

    Office of Environmental Management (EM)

    ABENGOA BIOENERGY Using an innovative process, Abengoa Bioenergy's cellulosic ethanol plant will convert non-edible crop residue into clean fuel. INVESTING in AMERICAN ENERGY OWNERS Abengoa, S.A. & Abengoa Bioenergy U.S. Holding, Inc. LOCATION Hugoton, Kansas LOAN AMOUNT $132.4 Million ISSUANCE DATE September 2011 PRODUCTION CAPACITY 25 Million Gallons Annually GASOLINE SAVED 14,900,000 Gallons Annually CLIMATE BENEFIT 132,000 Metric Tons of C0 2 Prevented Annually

  15. LPO5-002-Proj-Poster-BIO-Genesis

    Office of Environmental Management (EM)

    GENESIS Using parabolic trough technology, Genesis is one of the largest concentrating solar power projects in the U.S. INVESTING in AMERICAN ENERGY OWNER NextEra Energy LOCATION Riverside County, California LOAN AMOUNT $852 Million ISSUANCE DATE August 2011 GENERATION CAPACITY 250 MW PROJECTED ANNUAL GENERATION 605,000 MWh CLIMATE BENEFIT 322,000 Metric Tons of C0 2 Prevented Annually

  16. LPO5-002-Proj-Poster-CSP-CrescentDunes

    Office of Environmental Management (EM)

    CRESCENT DUNES Concentrating the sun's energy to heat molten salt, Crescent Dunes will be the world's largest power tower with storage. INVESTING in AMERICAN ENERGY OWNERS SolarReserve, LLC, ACS Cobra & Banco Santander LOCATION Nye County, Nevada LOAN AMOUNT $737 Million ISSUANCE DATE September 2011 GENERATION CAPACITY 110 MW PROJECTED ANNUAL GENERATION 482,000 MWh CLIMATE BENEFIT 279,000 Metric Tons of C0 2 Prevented Annually

  17. LPO5-002-Proj-Poster-CSP-Ivanpah

    Office of Environmental Management (EM)

    IVANPAH Rising 450 feet above the California desert, Ivanpah is the world's largest concentrating solar power facility. INVESTING in AMERICAN ENERGY OWNERS BrightSource Energy, NRG Energy & Google LOCATION Ivanpah Dry Lake, California LOAN AMOUNT $1.6 Billion ISSUANCE DATE April 2011 GENERATION CAPACITY 392 MW PROJECTED ANNUAL GENERATION 940,000 MWh CLIMATE BENEFIT 500,000 Metric Tons of C0 2 Prevented Annually

  18. LPO5-002-Proj-Poster-CSP-Mojave

    Office of Environmental Management (EM)

  19. LPO5-002-Proj-Poster-CSP-Ormat

    Office of Environmental Management (EM)

    ORMAT NEVADA With 3 facilities across the state, Ormat Nevada increases Nevada's clean power capacity by tapping into a vast underground geothermal reservoir. OWNERS Ormat Nevada, Inc. & Ormat Technologies LOCATIONS Jersey Valley, McGinness Hills & Tuscarora, Nevada LOAN AMOUNT $350 Million ISSUANCE DATE September 2011 GENERATION CAPACITY 97 MW PROJECTED ANNUAL GENERATION 557,000 MWh CLIMATE BENEFIT 301,000 Metric Tons of C0 2 Prevented Annually INVESTING in AMERICAN ENERGY

  20. LPO5-002-Proj-Poster-CSP-Solana

    Office of Environmental Management (EM)

  1. LPO5-002-Proj-Poster-GEO-BlueMtn

    Office of Environmental Management (EM)

    BLUE MOUNTAIN The state-of-the-art Blue Mountain plant is helping Nevada use its geothermal resources to meet its clean energy goals. INVESTING in AMERICAN ENERGY OWNER AltaRock Energy, Inc. LOCATION Humbolt County, Nevada LOAN AMOUNT $98.5 Million ISSUANCE DATE November 2010 GENERATION CAPACITY 39 MW PROJECTED ANNUAL GENERATION 240,000 MWh CLIMATE BENEFIT 130,000 Metric Tons of C0 2 Prevented Annually

  2. LPO5-002-Proj-Poster-GEO-USGOregon

    Office of Environmental Management (EM)

    USG OREGON By pioneering a more e cient thermal extraction technology, USG Oregon is able to access previously untapped geothermal resources. INVESTING in AMERICAN ENERGY OWNERS U.S. Geothermal, Inc. & Enbridge (U.S.), Inc. LOCATION Malheur County, Oregon LOAN AMOUNT $97 Million ISSUANCE DATE February 2011 GENERATION CAPACITY 22 MW PROJECTED ANNUAL GENERATION 149,000 MWh CLIMATE BENEFIT 86,000 Metric Tons of C0 2 Prevented Annually

  3. LPO5-002-Proj-Poster-NCLR-Vogtle

    Office of Environmental Management (EM)

    VOGTLE As America's first new nuclear reactors in 30 years, Vogtle is bringing the next generation of advanced nuclear power to the U.S. INVESTING in AMERICAN ENERGY OWNERS Georgia Power Company (GPC), Oglethorpe Power Corporation (OPC), Municipal Electric Authority of Georgia (MEAG) & City of Dalton, Georgia LOCATION Waynesboro, Georgia LOAN AMOUNT $3.4 Billion (GPC), $3.1 Billion (OPC), $1.8 Billion (MEAG) ISSUANCE DATES February 2014 (GPC and OPC) & June 2015 (MEAG) GENERATION

  4. LPO5-002-Proj-Poster-PV-AVSR

    Office of Environmental Management (EM)

    ANTELOPE VALLEY SOLAR RANCH By scaling up innovative inverter technology, Antelope Valley Solar Ranch demonstrates that utility-scale photovoltaic solar can reliably deliver electricity. INVESTING in AMERICAN ENERGY OWNER Exelon LOCATION Lancaster, California LOAN AMOUNT $646 Million ISSUANCE DATE September 2011 GENERATION CAPACITY 242 MW PROJECTED ANNUAL GENERATION 482,000 MWh CLIMATE BENEFIT 279,000 Metric Tons of CO 2 Prevented Annually

  5. LPO5-002-Proj-Poster-PV-AguaCal

    Office of Environmental Management (EM)

    AGUA CALIENTE By harnessing Arizona's abundant sunlight, Agua Caliente is demonstrating that photovoltaic solar can go big in the U.S. INVESTING in AMERICAN ENERGY OWNERS NRG Solar, LLC & MidAmerican Renewables, LLC LOCATION Yuma County, Arizona LOAN AMOUNT $967 Million ISSUANCE DATE August 2011 GENERATION CAPACITY 290 MW PROJECTED ANNUAL GENERATION 559,000 MWh CLIMATE BENEFIT 312,000 Metric Tons of CO 2 Prevented Annually

  6. LPO5-002-Proj-Poster-PV-Alamosa

    Office of Environmental Management (EM)

    ALAMOSA Innovative tracking and concentrating optics increase the e ciency of Alamosa, the world's largest high concentration photovoltaic solar system. INVESTING in AMERICAN ENERGY OWNERS Cogentrix Power & Carlyle Infrastructure Partners LOCATION Alamosa, Colorado LOAN AMOUNT $90.6 Million ISSUANCE DATE September 2011 GENERATION CAPACITY 29 MW PROJECTED ANNUAL GENERATION 58,000 MWh CLIMATE BENEFIT 34,000 Metric Tons of CO 2 Prevented Annually

  7. LPO5-002-Proj-Poster-PV-DesertSunlight

    Office of Environmental Management (EM)

    DESERT SUNLIGHT By working with 14 commercial lending partners, Desert Sunlight helped pave the way for future utility-scale photovoltaic solar deals. INVESTING in AMERICAN ENERGY OWNERS NextEra Energy, General Electric & Sumitomo of America LOCATION Riverside County, California LOAN AMOUNT $1.5 Billion ISSUANCE DATE September 2011 GENERATION CAPACITY 550 MW PROJECTED ANNUAL GENERATION 1,060,000 MWh CLIMATE BENEFIT 614,000 Metric Tons of C0 2 Prevented Annually

  8. LPO5-002-Proj-Poster-SLR-MFG-1366

    Office of Environmental Management (EM)

    6 TECHNOLOGIES Using new, proprietary manufacturing processes, 1366 Technologies aims to produce higher-quality, lower-cost silicon wafers for solar cells. INVESTING in AMERICAN ENERGY OWNER 1366 Technologies, Inc. LOCATION Bedford, Massachusetts LOAN AMOUNT $150 Million ISSUANCE DATE August 2011 GENERATION CAPACITY 1,000 MW PROJECTED ANNUAL GENERATION 1,927,000 MWh CLIMATE BENEFIT 1,100,000 Metric Tons of CO 2 Prevented Annually

  9. LPO5-002-Proj-Poster-WIND-Granite

    Office of Environmental Management (EM)

    GRANITE RELIABLE As one of the first U.S. projects to use larger, more e cient turbines, Granite Reliable is a pioneering American wind farm. INVESTING in AMERICAN ENERGY OWNERS BAIF Granite Holdings & Freshet Wind Energy LOCATION Coos County, New Hampshire LOAN AMOUNT $169 Million ISSUANCE DATE September 2011 GENERATION CAPACITY 99 MW PROJECTED ANNUAL GENERATION 224,000 MWh CLIMATE BENEFIT 130,000 Metric Tons of CO 2 Prevented Annually

  10. LPO5-002-Proj-Poster-WIND-Kahuku

    Office of Environmental Management (EM)

    KAHUKU By combining cutting-edge wind turbine generators and a control system, Kahuku brings wind power to the Aloha State's island-based power grid. INVESTING in AMERICAN ENERGY OWNER First Wind LOCATION Kahuku, Hawai'i LOAN AMOUNT $117 Million ISSUANCE DATE July 2010 GENERATION CAPACITY 30 MW PROJECTED ANNUAL GENERATION 70,000 MWh CLIMATE BENEFIT 39,000 Metric Tons of CO 2 Prevented Annually

  11. LPO5-002-Proj-Poster-WIND-RecordHill

    Office of Environmental Management (EM)

    RECORD HILL Robust turbine technologies at Record Hill allow more power output during extreme weather conditions than conventional wind energy technology. INVESTING in AMERICAN ENERGY OWNERS Record Hill Wind & Yale University LOCATION Roxbury, Maine LOAN AMOUNT $102 Million ISSUANCE DATE August 2011 GENERATION CAPACITY 51 MW PROJECTED ANNUAL GENERATION 96,000 MWh CLIMATE BENEFIT 56,000 Metric Tons of CO 2 Prevented Annually

  12. LPO5-002-Proj-Poster-WIND-ShepardsFlat

    Office of Environmental Management (EM)

    SHEPHERDS FLAT Spanning two counties of working heritage ranch land in eastern Oregon, Shepherds Flat is one of the world's largest wind farms. INVESTING in AMERICAN ENERGY OWNER Caithness Energy, LLC LOCATIONS Gilliam County & Morrow County, Oregon LOAN AMOUNT $1.3 Billion ISSUANCE DATE December 2010 GENERATION CAPACITY 845 MW PROJECTED ANNUAL GENERATION 1,800,000 MWh CLIMATE BENEFIT 1,000,000 Metric Tons of CO 2 Prevented Annually

  13. LPO5-002-Proj-Poster-PV-Mesquite

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

    MESQUITE As one of the first U.S. photovoltaic solar facilities larger than 100 MW, Mesquite helped launch utility-scale solar in America. INVESTING in AMERICAN ENERGY OWNERS ...

  14. Tag: History | Y-12 National Security Complex

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

    History Tag: History Displaying 1 - 10 of 119... Category: About Deputy Secretary meets two calutron girls When the Deputy Secretary of Energy, Elizabeth Sherwood-Randall, was in...

  15. The Role of Anti-Phase Domains in InSb-Based Structures Grown on On-Axis and Off-Axis Ge Substrates

    SciTech Connect (OSTI)

    Debnath, M. C.; Mishima, T. D.; Santos, M. B.; Hossain, K.; Holland, O. W.

    2011-12-26

    Anti-phase domains form in InSb epilayers and InSb/Al{sub 0.20}In{sub 0.80}Sb single quantum wells when grown upon on-axis (001) Ge substrates by molecular beam epitaxy. Domain formation is partially suppressed through growth on Ge substrates with surfaces that are several degrees off the (001) or (211) axis. By using off-axis Ge substrates, room-temperature electron mobilities increased to {approx}60,000 cm{sup 2}/V-s and {approx}14,000 cm{sup 2}/V-s for a 4.0-{mu}m-thick InSb epilayer and a 25-nm InSb quantum well, respectively.

  16. Women in Los Alamos History

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

    Women in Los Alamos History Women in Los Alamos History WHEN: Mar 03, 2016 5:30 PM - 8:00 PM WHERE: Los Alamos Golf Course Clubhouse SPEAKER: Jill Tietjen CONTACT: Sarah Terrill (505) 709-0089 CATEGORY: Community INTERNAL: Calendar Login Event Description Tietjen is a well-known speaker on the topic of gender issues in the work place, and a motivational speaker for young women working toward educations and careers in science, engineering, technology and math (STEM). The community is invited to

  17. Drop History? No! | Jefferson Lab

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

    Drop History? No! February 29, 2012 When I was in high school in England, especially in the smaller country schools, teachers were scarce and schedules, therefore, constrained. Further, the English style is for students to choose directions, and therefore subjects, at a relatively early age. So, at age 13, I had to choose between Physics and Chemistry on the one hand, and Latin and History on the other. Of course, I chose Physics and Chemistry, but thereby lost two subjects in which I was

  18. Dual-Axis Resonance Testing of Wind Turbine Blades - Energy Innovation

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

    Portal Wind Energy Wind Energy Find More Like This Return to Search Dual-Axis Resonance Testing of Wind Turbine Blades National Renewable Energy Laboratory Contact NREL About This Technology <em>Dual-axis testing can concurrently test edgewise and flapwise blade stability which is significant in reducing the amount of time needed to fatigue test wind turbine blades. </em><br /> Dual-axis testing can concurrently test edgewise and flapwise blade stability which is

  19. The history of the LHC

    ScienceCinema (OSTI)

    None

    2011-10-06

    Abstract: From the civil engineering, to the manufacturing of the various magnet types, each building block of this extraordinary machine required ambitious leaps in innovation. This lecture will review the history of the LHC project, focusing on the many challenges -- scientific, technological, managerial -- that had to be met during the various phases of R&D;, industrialization, construction, installation and commissioning.

  20. The history of the LHC

    SciTech Connect (OSTI)

    2010-05-11

    Abstract: From the civil engineering, to the manufacturing of the various magnet types, each building block of this extraordinary machine required ambitious leaps in innovation. This lecture will review the history of the LHC project, focusing on the many challenges -- scientific, technological, managerial -- that had to be met during the various phases of R&D;, industrialization, construction, installation and commissioning.

  1. history

    National Nuclear Security Administration (NNSA)

    the Albuquerque Operations Office with other NNSA operations offices into the NNSA Service Center located in Albuquerque. OTS was renamed the Office of Secure Transportation...

  2. History

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

    LES 9, both launched together on March 14, 1976. Radioisotope Thermoelectric Generator (RTG) DOE first supported the use of radioisotope power systems on National Aeronautics and ...

  3. History

    Broader source: Energy.gov [DOE]

    On January 7, 2011, the President signed H.R. 6523 (111th), the Ike Skelton National Defense Authorization Act for Fiscal Year 2011 (http://www.govtrack.us/congress/bills/111/hr6523) which became...

  4. High Current-Carrying Capability in c -Axis-Oriented Superconducting...

    Office of Scientific and Technical Information (OSTI)

    High Current-Carrying Capability in c -Axis-Oriented Superconducting MgBsub 2 Thin Films Citation Details In-Document Search Title: High Current-Carrying Capability in c ...

  5. Content-based fused off-axis object illumination direct-to-digital holography

    DOE Patents [OSTI]

    Price, Jeffery R.

    2006-05-02

    Systems and methods are described for content-based fused off-axis illumination direct-to-digital holography. A method includes calculating an illumination angle with respect to an optical axis defined by a focusing lens as a function of data representing a Fourier analyzed spatially heterodyne hologram; reflecting a reference beam from a reference mirror at a non-normal angle; reflecting an object beam from an object the object beam incident upon the object at the illumination angle; focusing the reference beam and the object beam at a focal plane of a digital recorder to from the content-based off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis; and digitally recording the content based off-axis illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis.

  6. Off-axis variable focus and aberration control mirrors and method

    DOE Patents [OSTI]

    Himmer, Phillip A.; Dickensheets, David L.

    2009-02-24

    An optical element with multi-layer composites that deforms to reduce optical aberrations in off-axis optic. Methods are also described in relation to the optical element.

  7. Characterization of reactively sputtered c-axis aligned nanocrystalline InGaZnO{sub 4}

    SciTech Connect (OSTI)

    Lynch, David M.; Zhu, Bin; Ast, Dieter G.; Thompson, Michael O.; Levin, Barnaby D. A.; Muller, David A.; Greene, Raymond G.

    2014-12-29

    Crystallinity and texturing of RF sputtered c-axis aligned crystal InGaZnO{sub 4} (CAAC IGZO) thin films were quantified using X-ray diffraction techniques. Above 190?C, nanocrystalline films with an X-ray peak at 2??=?30 (009 planes) developed with increasing c-axis normal texturing up to 310?C. Under optimal conditions (310?C, 10% O{sub 2}), films exhibited a c-axis texture full-width half-maximum of 20. Cross-sectional high-resolution transmission electron microscopy confirmed these results, showing alignment variation of 9 over a 15 15?nm field of view and indicating formation of much larger aligned domains than previously reported. At higher deposition temperatures, c-axis alignment was gradually lost as polycrystalline films developed.

  8. The Use of a Beryllium Hopkinson Bar to Characterize In-Axis and Cross-Axis Accelerometer Response in Shock Environments

    SciTech Connect (OSTI)

    Bateman, V.I.; Brown, F.A.

    1999-01-01

    The characteristics of a piezoresistive accelerometer in shock environments have been studied at Sandia National Laboratories in the Mechanical Shock Laboratory. A beryllium Hopkinson bar capability with diameters of 0.75 in. and 2.0 in has been developed to extend our understanding of the piezoresistive accelerometer, in two mechanical configurations, in the high frequency, high shock environments where measurements are being made. The in-axis performance of the piezoresistive accelerometer determined from measurements with a beryllium Hopkinson bar and a certified laser doppler vibrometer as the reference measurement is presented. The cross-axis performance of the accelerometer subjected to static compression on a beryllium cylinder, static strain on a steel beam, dynamic strain on a steel beam (ISA-RP 37.2, Paragraph 6.6), and compressive shocks in a split beryllium Hopkinson bar configuration is also presented. The performance of the accelerometer in a combined in-axis and cross-axis shock environment is shown for one configuration. Finally, a failure analysis conducted in cooperation with ENDEVCO gives a cause for the occasional unexplained failures that have occurred in some applications.

  9. Knot Undulator to Generate Linearly Polarized Photons with Low on-Axis

    Office of Scientific and Technical Information (OSTI)

    Power Density (Technical Report) | SciTech Connect Technical Report: Knot Undulator to Generate Linearly Polarized Photons with Low on-Axis Power Density Citation Details In-Document Search Title: Knot Undulator to Generate Linearly Polarized Photons with Low on-Axis Power Density Heat load on beamline optics is a serious problem to generate pure linearly polarized photons in the third generation synchrotron radiation facilities. For permanent magnet undulators, this problem can be overcome

  10. Design and analysis of a vertical axis ocean current power plant

    SciTech Connect (OSTI)

    Richard, C.C.; Hartzog, J.R.; Sorge, R.V.; Quigley, J.V.; Adams, G.R.

    1981-01-01

    This paper discusses a calculation of the power generated by a vertical axis ocean current power plant. An analytical model is presented and a computer solution described. Results of the calculation show the optimum angles of the blades about the vertical axis to maximize power output, as well as the total extractable power of the plant for various ocean current velocities. Tow tank tests are described for a scale model of the plant.

  11. Three-dimensional Numerical Analysis on Blade Response of Vertical Axis

    Office of Scientific and Technical Information (OSTI)

    Tidal Current Turbine Under Operational Condition (Journal Article) | SciTech Connect Three-dimensional Numerical Analysis on Blade Response of Vertical Axis Tidal Current Turbine Under Operational Condition Citation Details In-Document Search Title: Three-dimensional Numerical Analysis on Blade Response of Vertical Axis Tidal Current Turbine Under Operational Condition Tidal power as a large-scale renewable source of energy has been receiving significant attention recently because of its

  12. Method for non-contact particle manipulation and control of particle spacing along an axis

    DOE Patents [OSTI]

    Goddard, Gregory Russ; Kaduchak, Gregory; Jett, James Hubert; Graves, Steven Wayde

    2012-09-11

    Method and system for uniformly spacing particles in a flowing system comprising suspending particles in an elongated fluid filled cavity; exposing said cavity to an axial acoustic standing wave field, wherein said axial acoustic standing wave field drives said particles to nodal and anti-nodal positions along the center axis of said cavity to result in uniformly spaced particles; and focusing said particles to the center axis of said cavity.

  13. Method for non-contact particle manipulation and control of particle spacing along an axis

    DOE Patents [OSTI]

    Goddard, Gregory R; Kaduchak, Gregory; Jett, James H; Graves, Steven W

    2015-01-13

    Method and system for uniformly spacing particles in a flowing system comprising suspending particles in an elongated fluid filled cavity; exposing said cavity to an axial acoustic standing wave field, wherein said axial acoustic standing wave field drives said particles to nodal and anti-nodal positions along the center axis of said cavity to result in uniformly spaced particles; and focusing said particles to the center axis of said cavity.

  14. Fused off-axis object illumination direct-to-digital holography with a plurality of illumination sources

    DOE Patents [OSTI]

    Price, Jeffery R.; Bingham, Philip R.

    2005-11-08

    Systems and methods are described for rapid acquisition of fused off-axis illumination direct-to-digital holography. A method of recording a plurality of off-axis object illuminated spatially heterodyne holograms, each of the off-axis object illuminated spatially heterodyne holograms including spatially heterodyne fringes for Fourier analysis, includes digitally recording, with a first illumination source of an interferometer, a first off-axis object illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis; and digitally recording, with a second illumination source of the interferometer, a second off-axis object illuminated spatially heterodyne hologram including spatially heterodyne fringes for Fourier analysis.

  15. Well Record or History | Open Energy Information

    Open Energy Info (EERE)

    Record or History Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: Well Record or HistoryLegal Published NA Year Signed or Took...

  16. Sandia National Laboratories: About Sandia: History

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

    History View as list Resources Sandia's government owned/contractor operated (GOCO) heritage Sandia history reports and publications Always/Never: The Quest for Safety, Control & Survivability For more information, contact the Corporate Historian Rebecca Ullrich.

  17. The use of a beryllium Hopkinson bar to characterize in-axis and cross-axis accelerometer response in shock environments

    SciTech Connect (OSTI)

    Bateman, V.I.; Brown, F.A.

    1997-05-01

    The characteristics of a piezoresistive accelerometer in shock environments are being studied at Sandia National Laboratories in the Mechanical Shock Testing Laboratory. A beryllium Hopkinson bar capability has been developed to extend the understanding of the piezoresistive accelerometer, in two mechanical configurations and with and without mechanical isolation, in the high frequency, high shock environments where measurements are being made. In this paper, recent measurements with beryllium single and split-Hopkinson bar configurations are described. The in axis performance of the piezoresistive accelerometer in mechanical isolation for frequencies of dc-30 kHz and shock magnitudes of up to 6,000 g as determined from measurements with a beryllium Hopkinson bar with a certified laser doppler vibrometer as the reference measurement are presented. Results of characterizations of the accelerometers subjected to cross axis shocks in a split beryllium Hopkinson bar configuration are also presented.

  18. AXIS: An instrument for imaging Compton radiographs using the Advanced Radiography Capability on the NIF

    SciTech Connect (OSTI)

    Hall, G. N. Izumi, N.; Tommasini, R.; Carpenter, A. C.; Palmer, N. E.; Zacharias, R.; Felker, B.; Holder, J. P.; Allen, F. V.; Bell, P. M.; Bradley, D.; Montesanti, R.; Landen, O. L.

    2014-11-15

    Compton radiography is an important diagnostic for Inertial Confinement Fusion (ICF), as it provides a means to measure the density and asymmetries of the DT fuel in an ICF capsule near the time of peak compression. The AXIS instrument (ARC (Advanced Radiography Capability) X-ray Imaging System) is a gated detector in development for the National Ignition Facility (NIF), and will initially be capable of recording two Compton radiographs during a single NIF shot. The principal reason for the development of AXIS is the requirement for significantly improved detection quantum efficiency (DQE) at high x-ray energies. AXIS will be the detector for Compton radiography driven by the ARC laser, which will be used to produce Bremsstrahlung X-ray backlighter sources over the range of 50 keV200 keV for this purpose. It is expected that AXIS will be capable of recording these high-energy x-rays with a DQE several times greater than other X-ray cameras at NIF, as well as providing a much larger field of view of the imploded capsule. AXIS will therefore provide an image with larger signal-to-noise that will allow the density and distribution of the compressed DT fuel to be measured with significantly greater accuracy as ICF experiments are tuned for ignition.

  19. The Manhattan Project National Security History Series

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

    The Manhattan Project National Security History Series 5 Visit our Manhattan Project web site: http://www.cfo.doe.gov/me70/manhattan/index.htm 5 DOE/MA-0002 Revised F. G. Gosling Offce of History and Heritage Resources Executive Secretariat Offce of Management Department of Energy January 2010 The Manhattan Project National Security History Series 5 National Security History Series Volume I: The Manhattan Project: Making the Atomic Bomb Volume II: Building the Nuclear Arsenal: Cold War Nuclear

  20. History of the Strategic Petroleum Reserve

    Broader source: Energy.gov [DOE]

    This timeline explores the history of the Strategic Petroleum Reserve, or SPR, from conception through current events.

  1. NTS_History.indd | Department of Energy

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

    NTS_History.indd NTS_History.indd PDF icon NTS_History.indd More Documents & Publications Fehner and Gosling, Atmospheric Nuclear Weapons Testing, 1951-1963. Battlefield of the Cold War: The Nevada Test Site, Volume I origins.indd Fehner and Gosling, Origins of the Nevada Test Site

  2. In-Axis and Cross-Axid Accelerometer Response in Shock Environments

    SciTech Connect (OSTI)

    Bateman, V.I.; Brown, F.A.

    1999-03-10

    The characteristics of a piezoresistive accelerometer in shock environments have been studied at Sandia National Laboratories (SNL) in the Mechanical Shock Testing Laboratory for ten years The SNL Shock Laboratory has developed a capability to characterize accelerometers and other transducers with shocks aligned with the transducer's sensing axis and perpendicular to the transducer's sensing axis. This unique capability includes Hopkinson bars made of aluminum, steel, titanium, and beryllium. The bars are configured as both single and split Hopkinson bars. Four different areas that conclude this study are summarized in this paper: characterization of the cross-axis response of the accelerometer in the four environments of static compression, static strain on a beam, dynamic strain, and mechanical shock, the accelerometer's response on a titanium Hopkinson bar with two 45{degree} flats on the end of the bar; failure analysis of the accelerometer; and measurement of the accelerometer's self-generating cable response in a shock environment.

  3. A two-dimensional matrix correction for off-axis portal dose prediction errors

    SciTech Connect (OSTI)

    Bailey, Daniel W.; Kumaraswamy, Lalith; Bakhtiari, Mohammad; Podgorsak, Matthew B.

    2013-05-15

    Purpose: This study presents a follow-up to a modified calibration procedure for portal dosimetry published by Bailey et al. ['An effective correction algorithm for off-axis portal dosimetry errors,' Med. Phys. 36, 4089-4094 (2009)]. A commercial portal dose prediction system exhibits disagreement of up to 15% (calibrated units) between measured and predicted images as off-axis distance increases. The previous modified calibration procedure accounts for these off-axis effects in most regions of the detecting surface, but is limited by the simplistic assumption of radial symmetry. Methods: We find that a two-dimensional (2D) matrix correction, applied to each calibrated image, accounts for off-axis prediction errors in all regions of the detecting surface, including those still problematic after the radial correction is performed. The correction matrix is calculated by quantitative comparison of predicted and measured images that span the entire detecting surface. The correction matrix was verified for dose-linearity, and its effectiveness was verified on a number of test fields. The 2D correction was employed to retrospectively examine 22 off-axis, asymmetric electronic-compensation breast fields, five intensity-modulated brain fields (moderate-high modulation) manipulated for far off-axis delivery, and 29 intensity-modulated clinical fields of varying complexity in the central portion of the detecting surface. Results: Employing the matrix correction to the off-axis test fields and clinical fields, predicted vs measured portal dose agreement improves by up to 15%, producing up to 10% better agreement than the radial correction in some areas of the detecting surface. Gamma evaluation analyses (3 mm, 3% global, 10% dose threshold) of predicted vs measured portal dose images demonstrate pass rate improvement of up to 75% with the matrix correction, producing pass rates that are up to 30% higher than those resulting from the radial correction technique alone. As in the 1D correction case, the 2D algorithm leaves the portal dosimetry process virtually unchanged in the central portion of the detector, and thus these correction algorithms are not needed for centrally located fields of moderate size (at least, in the case of 6 MV beam energy).Conclusion: The 2D correction improves the portal dosimetry results for those fields for which the 1D correction proves insufficient, especially in the inplane, off-axis regions of the detector. This 2D correction neglects the relatively smaller discrepancies that may be caused by backscatter from nonuniform machine components downstream from the detecting layer.

  4. Off-axis sawteeth and double-tearing reconnection in reversed magnetic shear plasmas in TFTR

    SciTech Connect (OSTI)

    Chang, Z.; Park, W.; Fredrickson, E.D.

    1996-06-01

    Off-axis sawteeth are often observed in reversed magnetic shear plasmas when the minimum safety factor q is near or below 2. Fluctuations with m/n = 2/1 (m and n are the poloidal and toroidal mode numbers) appear before and after the crashes. Detailed comparison has been made between the measured T{sub e} profile evolution during the crash and a nonlinear numerical magnetohydrodynamics (MHD) simulation. The good agreement between the observation and simulation indicates that the off-axis sawteeth are due to a double-tearing magnetic reconnection process.

  5. Multi-Axis Foot Reaction Force/Torque Sensor for Biomedical Applications

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Conference: Multi-Axis Foot Reaction Force/Torque Sensor for Biomedical Applications Citation Details In-Document Search Title: Multi-Axis Foot Reaction Force/Torque Sensor for Biomedical Applications No abstract prepared. Authors: Lind, Randall F [1] ; Love, Lonnie J [1] ; Rowe, John C [1] ; Pin, Francois G [1] + Show Author Affiliations ORNL [ORNL Publication Date: 2009-01-01 OSTI Identifier: 966106 DOE Contract Number: DE-AC05-00OR22725 Resource Type:

  6. Shock margin testing of a one-axis MEMS accelerometer. (Technical Report) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Technical Report: Shock margin testing of a one-axis MEMS accelerometer. Citation Details In-Document Search Title: Shock margin testing of a one-axis MEMS accelerometer. Shock testing was performed on a selected commercial-off-the-shelf - MicroElectroMechanical System (COTS-MEMS) accelerometer to determine the margin between the published absolute maximum rating for shock and the 'measured' level where failures are observed. The purpose of this testing is to provide baseline

  7. A comparison of measured wind park load histories with the WISPER and WISPERX load spectra

    SciTech Connect (OSTI)

    Kelley, N.D.

    1995-01-01

    The blade-loading histories from two adjacent Micon 65/13 wind turbines are compared with the variable-amplitude test-loading histories known as the WISPER and WISPERX spectra. These standardized loading sequences were developed from blade flapwise load histories taken from nine different horizontal-axis wind turbines operating under a wide range of conditions in Europe. The subject turbines covered a broad spectrum of rotor diameters, materials, and operating environments. The final loading sequences were developed as a joint effort of thirteen different European organizations. The goal was to develop a meaningful loading standard for horizontal-axis wind turbine blades that represents common interaction effects seen in service. In 1990, NREL made extensive load measurements on two adjacent Micon 65/13 wind turbines in simultaneous operation in the very turbulent environment of a large wind park. Further, before and during the collection of the loads data, comprehensive measurements of the statistics of the turbulent environment were obtained at both the turbines under test and at two other locations within the park. The trend to larger but lighter wind turbine structures has made an understanding of the expected lifetime loading history of paramount importance. Experience in the US has shown that the turbulence-induced loads associated with multi-row wind parks in general are much more severe than for turbines operating individually or within widely spaced environments. Multi-row wind parks are much more common in the US than in Europe. In this paper we report on our results in applying the methodology utilized to develop the WISPER and WISPERX standardized loading sequences using the available data from the Micon turbines. While the intended purpose of the WISPER sequences were not to represent a specific operating environment, we believe the exercise is useful, especially when a turbine design is likely to be installed in a multi-row wind park.

  8. Rotation Angle for the Optimum Tracking of One-Axis Trackers

    SciTech Connect (OSTI)

    Marion, W. F.; Dobos, A. P.

    2013-07-01

    An equation for the rotation angle for optimum tracking of one-axis trackers is derived along with equations giving the relationships between the rotation angle and the surface tilt and azimuth angles. These equations are useful for improved modeling of the solar radiation available to a collector with tracking constraints and for determining the appropriate motor revolutions for optimum tracking.

  9. A lightweight high performance dual-axis gimbal for space applications

    SciTech Connect (OSTI)

    Pines, D.J.; Hakala, D.B.; Malueg, R.

    1995-05-05

    This paper describes the design, development and performance of a lightweight precision gimbal with dual-axis slew capability to be used in a closed-loop optical tracking system at Lawrence Livermore National Laboratory-LLNL. The motivation for the development of this gimbal originates from the need to acquire and accurately localize warm objects (T{approximately}500 K) in a cluttered background. The design of the gimbal is centered around meeting the following performance requirements: pointing accuracy with control < 35 {mu}rad-(1-{omega}); slew capability > 0.2 rad/sec; mechanical weight < 5 kg. These performance requirements are derived by attempting to track a single target from multiple satellites in low Earth orbit using a mid-wave infrared camera. Key components in the gimbal hardware that are essential to meeting the performance objectives include a nickel plated beryllium mirro, an accurate lightweight capacitive pickoff device for angular measurement about the elevation axis, a 16-bit coarse/fine resolver for angular measurement about the azimuth axis, a toroidally wound motor with low hysteresis for providing torque about the azimuth axis, and the selection of beryllium parts to insure high stiffness to weight ratios and more efficient thermal conductivity. Each of these elements are discussed in detail to illustrate the design trades performed to meet the tracking and slewing requirements demanded. Preliminary experimental results are also given for various commanded tracking maneuvers.

  10. Effect of strain along C-axis NbS{sub 2}

    SciTech Connect (OSTI)

    Singh, Tapender Kumar, Jagdish Sastri, O. S. K. S.

    2015-05-15

    We have studied electronic properties of double layered hexagonal structure of the Niobium Di-Sulphide (2H-NbS{sub 2}) superconductor for various strains introduced along the c-axis using ab-initio calculations. The DFT calculations based on Full Potential Linearized Augmented Plane Wave (FPLAPW) method are performed using the ELK code. The total energy curve (E vs a), Density of States (DOS) and the Band structure calculations obtained in this work are matching with the earlier reports. The Pressure-Volume (P-V) diagram for 2H-NbS{sub 2} was obtained using the Equation of State(EOS) calculations, which provides the relationship between the pressure and strain applied along the c-axis. The band structures for various strains ranging from 0 percent to 10 percent along c-axis in steps of 2 percent are obtained. We note that there are increasing number of bands crossing over the Fermi energy level with increase in strain. Thus, we conclude that with increasing strain along c-axis, number of conduction bands crossing the E{sub F} increases, which gives rise to more conduction states and hence higher conductivity.

  11. Method for non-contact particle manipulation and control of particle spacing along an axis

    DOE Patents [OSTI]

    Goddard, Gregory Russ; Kaduchak, Gregory; Jett, James Hubert; Graves, Steven Wayde

    2013-09-10

    One or more of the embodiments of the present invention provide for a method of non-contact particle manipulation and control of particle spacing along an axis which includes axial and radial acoustic standing wave fields. Particles are suspended in an aqueous solution, and this solution then flows into the cylindrical flow channel. While the solution flows through the flow channel, the outer structure of the flow channel is vibrated at a resonant frequency, causing a radial acoustic standing wave field to form inside the flow channel in the solution. These radial acoustic standing waves focus the particles suspended in the solution to the center axis of the cylindrical flow channel. At the same time, a transducer is used to create an axial acoustic standing wave field in the flow channel parallel to the axis of the flow channel. This drives the particles, which are already being focused to the center axis of the flow channel, to nodes or anti-nodes of the axial standing wave at half-wavelength intervals, depending on whether the particles are more or less dense and more or less compressible than the surrounding fluid.

  12. DC 12m telescope. Preliminary calculations. Investigation of elevation axis position.

    SciTech Connect (OSTI)

    Guarino, V. J.; High Energy Physics

    2009-12-18

    This paper examines some simple calculations of a 2D model of a telescope in order to understand how different design parameters affect the design. For the design of a telescope it is assumed that they need a design that minimizes deflections of the dish and also minimizes the size of the motors and torques needed to rotate in elevation. A common belief is that a lighter dish and minimum counterweight is desirable. However, these calculations show this is not necessarily true. The torque needed for rotation depends on the moment of inertia and if the telescope is balanced about the elevation axis. A light dish with no CW requires that the elevation axis be several meters in front of the dish (8-9m) in order to be balanced. This is not practical from a structural point of view. If the elevation axis is only 2m in front of the dish and there is no counterweight then the telescope will be unbalanced and the toruqes required will be very high - much higher than the torques needed only to overcome inertia. A heavy dish though can act as its own counterweight and the elevation axis only has to be 2-3m in front of the dish in order to achieve a balanced telescope. Also the struts that support the camera from the dish place a load on the dish which will put a bending moment on the dish. This bending moment will deform the dish and require it to be stiffer. A counterweight structure performs two functions. First, it allows the telescope to be balanced about the elevation axis. Second, it applies a force on the dish that opposes the forces from the camera struts, thereby reducing the bending moment and deformations of the dish.

  13. History of Regulatory Oversight at LANL

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

    History of Regulatory Oversight History of Regulatory Oversight at LANL History of Regulatory Oversight at LANL 1943-1950: Manhattan Project Era Few environmental regulations Best available protection technologies employed, though rudimentary 1950s-1970s: Cold War Era Laboratory moved from townsite to current location Advent of national environmental protection laws Clean Air Act Clean Water Act Resource Conservation and Recovery Act (RCRA) 1980s-1990s: Non-proliferation/Stockpile Reduction LANL

  14. Space Nuclear MIssion History | Department of Energy

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

    Power Systems » Space Nuclear MIssion History Space Nuclear MIssion History A HISTORY OF MISSION SUCCESSES For over fifty years, the Department of Energy has enabled space exploration on 27 missions by providing safe reliable radioistope power systems and radioisotope heater units for NASA, Navy, Air Force, DOE. Mission Year Launched Agency Regions Explored Transit 4a 1961 Navy Earth- Navy Navigation Satelitte Transit 4B 1961 Navy Earth - Navigation Satelitte Transit 5-BN-1 1963 Navy Earth -

  15. DOE History Timeline | Department of Energy

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

    DOE History Timeline DOE History Timeline DOE History Timeline The Department of Energy is one of the most interesting and diverse agencies in the Federal Government. Activated on October 1, 1977, the twelfth cabinet-level department brought together for the first time within one agency two programmatic traditions that had long coexisted within the Federal establishment: 1) defense responsibilities that included the design, construction, and testing of nuclear weapons dating from the Manhattan

  16. Commemorating Black History: Contributions of African Americans...

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

    Project Speak of the Nation's History General Leslie Groves and J. Robert Oppenheimer are pictured here at the Trinity Test site in New Mexico, 1945. New Manhattan Project ...

  17. History of Load Participation in ERCOT

    SciTech Connect (OSTI)

    Patterson, Mark

    2011-10-25

    Presentation on demand integration by ERCOT for a DOE Workshop. Covers history of load participation in ERCOT from 2002 to present.

  18. Power of the River History Book

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

    Power-of-the-River-BPA-History-Book Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects &...

  19. Employee Women's History Month Celebration (DC)

    Broader source: Energy.gov [DOE]

    Celebrate Women's History Month with the Department of Energy headquarters, and hear from remarkable game-changing women and leading DOE engagement programs.

  20. Radioactivity and health: A history

    SciTech Connect (OSTI)

    Stannard, J.N.; Baalman, R.W. Jr.

    1988-10-01

    This book is designed to be primarily a history of research facts, measurements, and ideas and the people who developed them. ''Research'' is defined very broadly to include from bench-top laboratory experiments to worldwide environmental investigations. The book is not a monograph or a critical review. The findings and conclusions are presented largely as the investigators saw and reported them. Frequently, the discussion utilizes the terminology and units of the time, unless they are truly antiquated or potentially unclear. It is only when the work being reported is markedly iconoclastic or obviously wrong that I chose to make special note of it or to correct it. Nevertheless, except for direct quotations, the language is mine, and I take full responsibility for it. The working materials for this volume included published papers in scientific journals, books, published conferences and symposia, personal interviews with over 100 individuals, some of them more than once (see Appendix A), and particularly for the 1940--1950 decade and for the large government-supported laboratories to the present day, ''in-house'' reports. These reports frequently represent the only comprehensive archive of what was done and why. Unfortunately, this source is drying up because of storage problems and must be retrieved by ever more complex and inconvenient means. For this reason, special efforts have been taken to review and document these sources, though even now some sections of the field are partially inaccessible. Nevertheless, the volume of all materials available for this review was surprisingly large and the quality much better than might have been expected for so complex and disparate a fields approached under conditions of considerable urgency.

  1. Atomic power in space: A history

    SciTech Connect (OSTI)

    Not Available

    1987-03-01

    ''Atomic Power in Space,'' a history of the Space Isotope Power Program of the United States, covers the period from the program's inception in the mid-1950s through 1982. Written in non-technical language, the history is addressed to both the general public and those more specialized in nuclear and space technologies. 19 figs., 3 tabs.

  2. PAFC History and Successes | Department of Energy

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

    History and Successes PAFC History and Successes Presentation at the MCFC and PAFC R&D Workshop held Nov. 16, 2009, in Palm Springs, CA PDF icon mcfc_pafc_workshop_ferro.pdf More Documents & Publications MCFC and PAFC R&D Workshop Summary Report PAFC Cost Challenges Fuel Cell Development Status

  3. Newmark-Hall synthetic history development

    SciTech Connect (OSTI)

    Aramayo, G.A.

    1990-11-01

    The methodology used to develop synthetic acceleration time histories with spectral content that envelopes the Newmark-Hall spectra is described. Six acceleration time histories are developed for two conditions of foundation and 3 critical damping factors. The target spectra corresponds to the mediam centered probability level.

  4. Axi-symmetrical flow reactor for .sup.196 Hg photochemical enrichment

    DOE Patents [OSTI]

    Grossman, Mark W.

    1991-01-01

    The present invention is directed to an improved photochemical reactor useful for the isotopic enrichment of a predetermined isotope of mercury, especially, .sup.196 Hg. Specifically, two axi-symmetrical flow reactors were constructed according to the teachings of the present invention. These reactors improve the mixing of the reactants during the photochemical enrichment process, affording higher yields of the desired .sup.196 Hg product. Measurements of the variation of yield (Y) and enrichment factor (E) along the flow axis of these reactors indicates very substantial improvement in process uniformity compared to previously used photochemical reactor systems. In one preferred embodiment of the present invention, the photoreactor system was built such that the reactor chamber was removable from the system without disturbing the location of either the photochemical lamp or the filter employed therewith.

  5. Axi-symmetrical flow reactor for [sup 196]Hg photochemical enrichment

    DOE Patents [OSTI]

    Grossman, M.W.

    1991-04-30

    The present invention is directed to an improved photochemical reactor useful for the isotopic enrichment of a predetermined isotope of mercury, especially, [sup 196]Hg. Specifically, two axi-symmetrical flow reactors were constructed according to the teachings of the present invention. These reactors improve the mixing of the reactants during the photochemical enrichment process, affording higher yields of the desired [sup 196]Hg product. Measurements of the variation of yield (Y) and enrichment factor (E) along the flow axis of these reactors indicates very substantial improvement in process uniformity compared to previously used photochemical reactor systems. In one preferred embodiment of the present invention, the photoreactor system was built such that the reactor chamber was removable from the system without disturbing the location of either the photochemical lamp or the filter employed therewith. 10 figures.

  6. Sun-Relative Pointing for Dual-Axis Solar Trackers Employing Azimuth and Elevation Rotations

    SciTech Connect (OSTI)

    Riley, Daniel; Hansen, Clifford W.

    2014-12-30

    Dual axis trackers employing azimuth and elevation rotations are common in the field of photovoltaic (PV) energy generation. Accurate sun-tracking algorithms are widely available. However, a steering algorithm has not been available to accurately point the tracker away from the sun such that a vector projection of the sun beam onto the tracker face falls along a desired path relative to the tracker face. We have developed an algorithm which produces the appropriate azimuth and elevation angles for a dual axis tracker when given the sun position, desired angle of incidence, and the desired projection of the sun beam onto the tracker face. Development of this algorithm was inspired by the need to accurately steer a tracker to desired sun-relative positions in order to better characterize the electro-optical properties of PV and CPV modules.

  7. Dual-axis high-data-rate atom interferometer via cold ensemble exchange

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

    Rakholia, Akash V.; McGuinness, Hayden J.; Biedermann, Grant W.

    2014-11-24

    We demonstrate a dual-axis accelerometer and gyroscope atom interferometer, which can form the building blocks of a six-axis inertial measurement unit. By recapturing the atoms after the interferometer sequence, we maintain a large atom number at high data rates of 50 to 100 measurements per second. Two cold ensembles are formed in trap zones located a few centimeters apart and are launched toward one another. During their ballistic trajectory, they are interrogated with a stimulated Raman sequence, detected, and recaptured in the opposing trap zone. As a result, we achieve sensitivities at μg/ √Hz and μrad/s/ √Hz levels, making thismore » a compelling prospect for expanding the use of atom interferometer inertial sensors beyond benign laboratory environments.« less

  8. Dual-axis high-data-rate atom interferometer via cold ensemble exchange

    SciTech Connect (OSTI)

    Rakholia, Akash V.; McGuinness, Hayden J.; Biedermann, Grant W.

    2014-11-24

    We demonstrate a dual-axis accelerometer and gyroscope atom interferometer, which can form the building blocks of a six-axis inertial measurement unit. By recapturing the atoms after the interferometer sequence, we maintain a large atom number at high data rates of 50 to 100 measurements per second. Two cold ensembles are formed in trap zones located a few centimeters apart and are launched toward one another. During their ballistic trajectory, they are interrogated with a stimulated Raman sequence, detected, and recaptured in the opposing trap zone. As a result, we achieve sensitivities at ?g/ ?Hz and ?rad/s/ ?Hz levels, making this a compelling prospect for expanding the use of atom interferometer inertial sensors beyond benign laboratory environments.

  9. Single-Axis Three-Beam Amplitude Monopulse Antenna-Signal Processing Issues

    SciTech Connect (OSTI)

    Doerry, Armin W.; Bickel, Douglas L.

    2015-05-01

    Typically, when three or more antenna beams along a single axis are required, the answer has been multiple antenna phase-centers, essentially a phase-monopulse system. Such systems and their design parameters are well-reported in the literature. Less appreciated is that three or more antenna beams can also be generated in an amplitude-monopulse fashion. Consequently, design guidelines and performance analysis of such antennas is somewhat under-reported in the literature. We provide discussion herein of three beams arrayed in a single axis with an amplitude-monopulse configuration. 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 Administ ration under contract DE-AC04-94AL85000.

  10. Sun-Relative Pointing for Dual-Axis Solar Trackers Employing Azimuth and Elevation Rotations

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

    Riley, Daniel; Hansen, Clifford W.

    2014-12-30

    Dual axis trackers employing azimuth and elevation rotations are common in the field of photovoltaic (PV) energy generation. Accurate sun-tracking algorithms are widely available. However, a steering algorithm has not been available to accurately point the tracker away from the sun such that a vector projection of the sun beam onto the tracker face falls along a desired path relative to the tracker face. We have developed an algorithm which produces the appropriate azimuth and elevation angles for a dual axis tracker when given the sun position, desired angle of incidence, and the desired projection of the sun beam ontomore » the tracker face. Development of this algorithm was inspired by the need to accurately steer a tracker to desired sun-relative positions in order to better characterize the electro-optical properties of PV and CPV modules.« less

  11. Tracking formulas and strategies for a receiver oriented dual-axis tracking toroidal heliostat

    SciTech Connect (OSTI)

    Guo, Minghuan; Wang, Zhifeng; Liang, Wenfeng; Zhang, Xiliang; Zang, Chuncheng; Lu, Zhenwu; Wei, Xiudong

    2010-06-15

    A 4 m x 4 m toroidal heliostat with receiver oriented dual-axis tracking, also called spinning-elevation tracking, was developed as an auxiliary heat source for a hydrogen production system. A series of spinning-elevation tracking formulas have been derived for this heliostat. This included basic tracking formulas, a formula for the elevation angle for heliostat with a mirror-pivot offset, and a more general formula for the biased elevation angle. This paper presents the new tracking formulas in detail and analyzes the accuracy of applying a simplifying approximation. The numerical results show these receiver oriented dual-axis tracking formula approximations are accurate to within 2.5 x 10{sup -6} m in image plane. Some practical tracking strategies are discussed briefly. Solar images from the toroidal heliostat at selected times are also presented. (author)

  12. Method and apparatus for maintaining equilibrium in a helical axis stellarator

    DOE Patents [OSTI]

    Reiman, Allan (Princeton, NJ); Boozer, Allen (Rocky Hill, NJ)

    1987-01-01

    Apparatus for maintaining three-dimensional MHD equilibrium in a plasma contained in a helical axis stellerator includes a resonant coil system, having a configuration such that current therethrough generates a magnetic field cancelling the resonant magnetic field produced by currents driven by the plasma pressure on any given flux surface resonating with the rotational transform of another flux surface in the plasma. Current through the resonant coil system is adjusted as a function of plasma beta.

  13. Sandia Vertical-Axis Wind-Turbine Research Presented at Science of Making

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

    Torque from Wind Conference Vertical-Axis Wind-Turbine Research Presented at Science of Making Torque from Wind Conference - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power &

  14. Method and apparatus for maintaining equilibrium in a helical axis stellarator

    DOE Patents [OSTI]

    Reiman, A.; Boozer, A.

    1984-10-31

    Apparatus for maintaining three-dimensional MHD equilibrium in a plasma contained in a helical axis stellarator includes a resonant coil system, having a configuration such that current therethrough generates a magnetic field cancelling the resonant magnetic field produced by currents driven by the plasma pressure on any given flux surface resonating with the rotational transform of another flux surface in the plasma. Current through the resonant coil system is adjusted as a function of plasma beta.

  15. Crystal surface symmetry from zone-axis patterns in reflection high-energy-electron diffraction

    SciTech Connect (OSTI)

    Shannon, M.D.; Eades, J.A.; Meichle, M.E.; Turner, P.S.; Buxton, B.F.

    1984-11-26

    New experimental techniques, sensitive to crystal surface symmetry, for reflection high-energy-electron diffraction have been developed and applied to the (001) surface of MgO. The techniques map the variation of the intensity of one or more diffracted beams as a function of the incident-beam orientation. The symmetry of these surface zone-axis patterns has been studied theoretically and confirmed experimentally. The techniques are expected to provide a sensitive means of surface characterization.

  16. Terahertz electron cyclotron maser interactions with an axis-encircling electron beam

    SciTech Connect (OSTI)

    Li, G. D.; Kao, S. H.; Chang, P. C.; Chu, K. R.

    2015-04-15

    To generate terahertz radiation via the electron cyclotron maser instability, harmonic interactions are essential in order to reduce the required magnetic field to a practical value. Also, high-order mode operation is required to avoid excessive Ohmic losses. The weaker harmonic interaction and mode competition associated with an over-moded structure present challenging problems to overcome. The axis-encircling electron beam is a well-known recipe for both problems. It strengthens the harmonic interaction, as well as minimizing the competing modes. Here, we examine these advantages through a broad data base obtained for a low-power, step-tunable, gyrotron oscillator. Linear results indicate far more higher-harmonic modes can be excited with an axis-encircling electron beam than with an off-axis electron beam. However, multi-mode, time-dependent simulations reveal an intrinsic tendency for a higher-harmonic mode to switch over to a lower-harmonic mode at a high beam current or upon a rapid current rise. Methods are presented to identify the narrow windows in the parameter space for stable harmonic interactions.

  17. Annual collectible energy of a two-axis tracking flat-plate solar collector

    SciTech Connect (OSTI)

    Attalage, R.A.; Reddy, T.A. )

    1992-01-01

    A correlation for annual collectible energy of a two-axis tracking flat-plate solar collector has been developed using simulated results based on typical meteorological year (TMY) data for 26 US locations. A preliminary validation of this correlation has been carried out with data from four Australian locations. With the advent of increasing interest in photovoltaic systems, there are a number of advantages of using a two-axis flat-plate collector. Since the tracking system is generally much cheaper than the collector panel, such a mode permits the incident solar radiation to be collected more efficiently. Incidence angle effects are minimized and, moreover, contrary to concentrating collectors, such a mode enables both the diffuse and beam components of solar radiation to be collected. In tropical locations where the diffuse fraction is generally high, this may be a great advantage. The objective of this study was to develop a correlation for the annual collectible energy of a two-axis tracking flat-plate collector.

  18. grid history | OpenEI Community

    Open Energy Info (EERE)

    Dc(266) Contributor 31 October, 2014 - 10:58 What do you know about the grid? black out brown out bulk power system electricity grid future grid grid history security Smart Grid...

  19. History of Hanford Site Defense Production (Brief)

    SciTech Connect (OSTI)

    GERBER, M S

    2001-02-01

    This paper acquaints the audience with the history of the Hanford Site, America's first full-scale defense plutonium production site. The paper includes the founding and basic operating history of the Hanford Site, including World War II construction and operations, three major postwar expansions (1947-55), the peak years of production (1956-63), production phase downs (1964-the present), a brief production spurt from 1984-86, the end of the Cold War, and the beginning of the waste cleanup mission. The paper also delineates historical waste practices and policies as they changed over the years at the Hanford Site, past efforts to chemically treat, ''fractionate,'' and/or immobilize Hanford's wastes, and resulting major waste legacies that remain today. This paper presents original, primary-source research into the waste history of the Hanford Site. Finally, the paper places the current Hanford Site waste remediation endeavors in the broad context of American and world history.

  20. History of SPR Releases | Department of Energy

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

    History of SPR Releases History of SPR Releases The Strategic Petroleum Reserve exists, first and foremost, as an emergency response tool the President can use should the United States be confronted with an economically-threatening disruption in oil supplies. A Presidentially-directed release has occurred three times under these conditions. First, in 1991, at the beginning of Operation Desert Storm, the United States joined its allies in assuring the adequacy of global oil supplies when war

  1. Heating Oil Reserve History | Department of Energy

    Energy Savers [EERE]

    Heating Oil Reserve History Heating Oil Reserve History Creation of an emergency reserve of heating oil was directed by President Clinton on July 10, 2000, when he directed then-Energy Secretary Bill Richardson to establish a two million barrel home heating oil component of the Strategic Petroleum Reserve in the Northeast. The intent was to create a buffer large enough to allow commercial companies to compensate for interruptions in supply during severe winter weather, but not so large as to

  2. Environmental Justice History | Department of Energy

    Energy Savers [EERE]

    Justice History Environmental Justice History The exact start of the environmental justice movement in America is not clear. Local groups have complained about unwanted land uses for decades. Prior to the early eighties, these local protests were considered isolated and protesting communities were complaining by themselves and not associated with others similarly situated in other communities. This isolated protesting all changed in the early 1980's and the environmental justice movement became

  3. DOE - NNSA/NFO -- FRMAC History

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

    History NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office FRMAC History Photo of Three Mile Island Following the accident at the Three Mile Island Nuclear Power Plant in March 1979, the President and Congress directed the impacted federal agencies to develop a plan to provide for an integrated federal response to radiological emergencies. It was recognized that when a major radiological incident impacts the public, the state(s) may need federal assistance to characterize and assess

  4. DNA Origami: A History and Current Perspective

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

    Origami: A History and Current Perspective Authors: Nangreave, J., Han, D., Liu, Y., and Yan, H. Title: DNA Origami: A History and Current Perspective Source: Current Opinion in Chemical Biology Year: 2010 Volume: 14 Pages: 608-615 ABSTRACT: Researchers have been using DNA for the rational design and construction of nanoscale objects for nearly 30 years. Recently, [`]scaffolded DNA origami' has emerged as one of the most promising assembly techniques in DNA nanotechnology with a broad range of

  5. SPEAR History | Stanford Synchrotron Radiation Lightsource

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

    SPEAR History Experimental Facilities : The SPEAR Storage Ring Stanford University has a long history of involvement in the development and use of colliding-beam storage rings for particle physics research. The first such machine at Stanford was a small electron-electron collider, shaped like a figure eight, located on the main campus. A collaborative effort between physicists from Princeton and Stanford Universities, this project produced the first physics results ever obtained with the

  6. Atomic Power in Space: A History

    DOE R&D Accomplishments [OSTI]

    1987-03-01

    "Atomic Power in Space," a history of the Space Isotope Power Program of the United States, covers the period from the program's inception in the mid-1950s through 1982. Written in non-technical language, the history is addressed to both the general public and those more specialized in nuclear and space technologies. Interplanetary space exploration successes and achievements have been made possible by this technology, for which there is no known substitue.

  7. History and Impacts | Department of Energy

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

    Appliance & Equipment Standards » About » History and Impacts History and Impacts Appliance and equipment efficiency standards have served as one of the nation's most effective policies for improving energy efficiency. The first standards were enacted at the state level in California in 1974. At the national level, the Energy Policy and Conservation Act (EPCA) was enacted in 1975, and established a federal program consisting of test procedures, labeling, and energy targets for consumer

  8. Three axis electronic flight motion simulator real time control system design and implementation

    SciTech Connect (OSTI)

    Gao, Zhiyuan; Miao, Zhonghua Wang, Xiaohua; Wang, Xuyong

    2014-12-15

    A three axis electronic flight motion simulator is reported in this paper including the modelling, the controller design as well as the hardware implementation. This flight motion simulator could be used for inertial navigation test and high precision inertial navigation system with good dynamic and static performances. A real time control system is designed, several control system implementation problems were solved including time unification with parallel port interrupt, high speed finding-zero method of rotary inductosyn, zero-crossing management with continuous rotary, etc. Tests were carried out to show the effectiveness of the proposed real time control system.

  9. Utah Division of State History | Open Energy Information

    Open Energy Info (EERE)

    History Jump to: navigation, search Logo: Utah Division of State History Name: Utah Division of State History Address: 300 S. Rio Grande St. Place: Salt Lake City, Utah Zip: 84101...

  10. Y-12 History Center | Y-12 National Security Complex

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

    Y-12 History Center Y-12 History Center Located within the New Hope Center at Y-12, the History Center houses a fascinating collection of informational materials and historical...

  11. Three-dimensional Numerical Analysis on Blade Response of Vertical Axis Tidal Current Turbine Under Operational Condition

    SciTech Connect (OSTI)

    Li, Ye; Karri, Naveen K.; Wang, Qi

    2014-04-30

    Tidal power as a large-scale renewable source of energy has been receiving significant attention recently because of its advantages over the wind and other renewal energy sources. The technology used to harvest energy from tidal current is called a tidal current turbine. Though some of the principles of wind turbine design are applicable to tidal current turbines, the design of latter ones need additional considerations like cavitation damage, corrosion etc. for the long-term reliability of such turbines. Depending up on the orientation of axis, tidal current turbines can be classified as vertical axis turbines or horizontal axis turbines. Existing studies on the vertical axis tidal current turbine focus more on the hydrodynamic aspects of the turbine rather than the structural aspects. This paper summarizes our recent efforts to study the integrated hydrodynamic and structural aspects of the vertical axis tidal current turbines. After reviewing existing methods in modeling tidal current turbines, we developed a hybrid approach that combines discrete vortex method -finite element method that can simulate the integrated hydrodynamic and structural response of a vertical axis turbine. This hybrid method was initially employed to analyze a typical three-blade vertical axis turbine. The power coefficient was used to evaluate the hydrodynamic performance, and critical deflection was considered to evaluate the structural reliability. A sensitivity analysis was also conducted with various turbine height-to-radius ratios. The results indicate that both the power output and failure probability increase with the turbine height, suggesting a necessity for optimal design. An attempt to optimize a 3-blade vertical axis turbine design with hybrid method yielded a ratio of turbine height to radius (H/R) about 3.0 for reliable maximum power output.

  12. Labs and Field Site Histories | Department of Energy

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

    Labs and Field Site Histories Labs and Field Site Histories Labs and Field Site Histories Note: Every effort is made to keep these links current and updated. Yet as many of the links below point to sites not under our direct control, some may stop working without warning . National Laboratories & Technology Centers Operations Offices & Field Sites Ames Laboratory (Iowa) -- History Chicago Office (Illinois) -- History Argonne National Laboratory (Illinois) -- Laboratory History and

  13. Bike-Sharing:History, Impacts, Models of Provision, and Future...

    Open Energy Info (EERE)

    Bike-Sharing:History, Impacts, Models of Provision, and Future Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Bike-Sharing:History, Impacts, Models of Provision, and...

  14. Chronological History of Federal Energy-Efficient Product Procurement...

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

    Chronological History of Federal Energy-Efficient Product Procurement: Executive, Legislative and Regulatory Requirements, Actions and Mandates Chronological History of Federal...

  15. Continuous wavelength tunable laser source with optimum positioning of pivot axis for grating

    DOE Patents [OSTI]

    Pushkarsky, Michael; Amone, David F.

    2010-06-08

    A laser source (10) for generating a continuously wavelength tunable light (12) includes a gain media (16), an optical output coupler (36F), a cavity collimator (38A), a diffraction grating (30), a grating beam (54), and a beam attacher (56). The diffraction grating (30) is spaced apart from the cavity collimator (38A) and the grating (30) cooperates with the optical output coupler (36F) to define an external cavity (32). The grating (30) includes a grating face surface (42A) that is in a grating plane (42B). The beam attacher (56) retains the grating beam (54) and allows the grating beam (54) and the grating (30) to effectively pivot about a pivot axis (33) that is located approximately at an intersection of a pivot plane (50) and the grating plane (42B). As provided herein, the diffraction grating (30) can be pivoted about the unique pivot axis (33) to move the diffraction grating (30) relative to the gain media (16) to continuously tune the lasing frequency of the external cavity (32) and the wavelength of the output light (12) so that the output light (12) is mode hop free.

  16. Aerodynamic analysis of a 10 kW horizontal-axis windmill

    SciTech Connect (OSTI)

    Figard, R.L.

    1980-01-01

    An aerodynamic study of the performance and the flowfield in the vicinity of the rotor of a three bladed 10 kW, horizontal-axis windmill is presented. The windmill has a 6.38 m (20.92 ft) diameter rotor and is rated at 10 kW in a 13.41 m/s (44.0 fps) wind. Three basic approaches are utilized. First, field measurements of the performance and the axial velocity and turbulence behind the rotor were conducted. Second, wind tunnel tests of a 1:5 scale model were performed. Third, theoretical analyses of the windmill were made. This included performance predictions with a computerized, modified blade element (vortex theory) analysis and the development and utilization of a numerical procedure employing the full Navier-Stokes equations in axi-symmetric form to examine the wake development in detail. In that effort the rotor is modeled by an actuator disk in a uniform flow, a simple turbulence transport model based on an integrated TKE equation is applied, and the equations of motion are taken in terms of the stream function, one vorticity component, and the peripheral velocity. The results of each of the three approaches shows agreement within 10 to 15% with the other two approaches.

  17. Simulation of winds as seen by a rotating vertical axis wind turbine blade

    SciTech Connect (OSTI)

    George, R.L.

    1984-02-01

    The objective of this report is to provide turbulent wind analyses relevant to the design and testing of Vertical Axis Wind Turbines (VAWT). A technique was developed for utilizing high-speed turbulence wind data from a line of seven anemometers at a single level to simulate the wind seen by a rotating VAWT blade. Twelve data cases, representing a range of wind speeds and stability classes, were selected from the large volume of data available from the Clayton, New Mexico, Vertical Plane Array (VPA) project. Simulations were run of the rotationally sampled wind speed relative to the earth, as well as the tangential and radial wind speeds, which are relative to the rotating wind turbine blade. Spectral analysis is used to compare and assess wind simulations from the different wind regimes, as well as from alternate wind measurement techniques. The variance in the wind speed at frequencies at or above the blade rotation rate is computed for all cases, and is used to quantitatively compare the VAWT simulations with Horizontal Axis Wind Turbine (HAWT) simulations. Qualitative comparisons are also made with direct wind measurements from a VAWT blade.

  18. A multichannel magnetic probe system for analysing magnetic fluctuations in helical axis plasmas

    SciTech Connect (OSTI)

    Haskey, S. R.; Blackwell, B. D.; Seiwald, B.; Hole, M. J.; Pretty, D. G.; Howard, J.; Wach, J. [Plasma Research Laboratory, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200 (Australia)] [Plasma Research Laboratory, Research School of Physical Sciences and Engineering, The Australian National University, Canberra, ACT 0200 (Australia)

    2013-09-15

    The need to understand the structure of magnetic fluctuations in H-1NF heliac [S. Hamberger et al., Fusion Technol. 17, 123 (1990)] plasmas has motivated the installation of a sixteen former, tri-axis helical magnetic probe Mirnov array (HMA). The new array complements two existing poloidal Mirnov arrays by providing polarisation information, higher frequency response, and improved toroidal resolution. The helical placement is ideal for helical axis plasmas because it positions the array as close as possible to the plasma in regions of varying degrees of favourable curvature in the magnetohydrodynamic sense, but almost constant magnetic angle. This makes phase variation with probe position near linear, greatly simplifying the analysis of the data. Several of the issues involved in the design, installation, data analysis, and calibration of this unique array are presented including probe coil design, frequency response measurements, mode number identification, orientation calculations, and mapping probe coil positions to magnetic coordinates. Details of specially designed digitally programmable pre-amplifiers, which allow gains and filters to be changed as part of the data acquisition initialisation sequence and stored with the probe signals, are also presented. The low shear heliac geometry [R. Jimnez-Gmez et al., Nucl. Fusion 51, 033001 (2011)], flexibility of the H-1NF heliac, and wealth of information provided by the HMA create a unique opportunity for detailed study of Alfvn eigenmodes, which could be a serious issue for future fusion reactors.

  19. Development of a MEMS dual-axis differential capacitance floating element shear stress sensor

    SciTech Connect (OSTI)

    Barnard, Casey; Griffin, Benjamin

    2015-09-01

    A single-axis MEMS wall shear stress sensor with differential capacitive transduction method is produced. Using a synchronous modulation and demodulation interface circuit, the system is capable of making real time measurements of both mean and fluctuating wall shear stress. A sensitivity of 3.44 mV/Pa is achieved, with linearity in response demonstrated up to testing limit of 2 Pa. Minimum detectable signals of 340 ?Pa at 100 Hz and 120 ?Pa at 1 kHz are indicated, with a resonance of 3.5 kHz. Multiple full scale wind tunnel tests are performed, producing spectral measurements of turbulent boundary layers in wind speeds ranging up to 0.5 Ma (18 Pa of mean wall shear stress). The compact packaging allows for minimally invasive installation, and has proven relatively robust over multiple testing events. Temperature sensitivity, likely due to poor CTE matching of packaged materials, is an ongoing concern being addressed. These successes are being directly leveraged into a development plan for a dual-axis wall shear stress sensor, capable of producing true vector estimates at the wall.

  20. ALS History: The First 20 Years

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

    History: The First 20 Years Print Below is an interactive timeline covering highlights of the first 20 years of ALS history. By no means exhaustive, it is meant to provide a broad overview of the people and events that have helped shape the ALS as well as a sense of the breadth of the science that has been done here. Click on items to see more detail. Slide the blue rectangle at bottom to move forward or backward in time. Color Key: Science Highlights (green); People and Events (orange);

  1. History of the DOE Human Genome Program

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

    of the DOE Human Genome Program The following history is taken from the U.S. Department of Energy 1991-91 Human Genome Program Report (June 1992). This is an archived item. A brief history of the U.S. Department of Energy (DOE) Human Genome Program will be useful in a discussion of the objectives of the DOE program as well as those of the collaborative U.S. Human Genome Project. The Office of Health and Environmental Research (OHER) of DOE and its predecessor agencies--the Atomic Energy

  2. Introduction to Y-12's history

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

    Y-12's History This article marks the beginning of a series that will focus on the history of the Y-12 National Security Complex. Y-12 has employed from 22,000 at its peak to 8,000 in the 1980's during the winning of the Cold War and for the past several years has held an average of about 4,500. It is one of three major Manhattan Project sites in Oak Ridge. Y-12 is the nation's sole storage location for weapons grade uranium, is the Department of Energy's National Nuclear Security

  3. The History of DEER | Department of Energy

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

    The History of DEER The History of DEER Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_eberhardt.pdf More Documents & Publications Update on Progress of APBF-DEC EGR/DPF/SCR Demonstration Program at SwRI After Petroleum Fuels of the Future for Cars and Trucks

  4. History of Air Conditioning | Department of Energy

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

    History of Air Conditioning History of Air Conditioning July 20, 2015 - 3:15pm Addthis Paul Lester Paul Lester Digital Content Specialist, Office of Public Affairs MORE ON AIR CONDITIONING Check out our Energy Saver 101 infographic to learn how air conditioners work. Go to Energy Saver for more tips and advice on home cooling. Stay up-to-date on how the Energy Department is working to improve air conditioning technology. We take the air conditioner for granted, but imagine what life would be

  5. A History of the Atomic Energy Commission | Department of Energy

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

    Atomic Energy Commission A History of the Atomic Energy Commission A History of the Atomic Energy Commission - written by Alice L. Buck Washington, D.C.: U.S. Department of Energy, July 1983. 41 pp. PDF icon AEC History.pdf More Documents & Publications The History of Nuclear Energy The Manhattan Project Hewlett and Holl - Atoms for Peace and War

  6. Theoretical and experimental power from large horizontal-axis wind turbines

    SciTech Connect (OSTI)

    Viterna, L A; Janetzke, D C

    1982-09-01

    A method for calculating the output power from large horizontal-axis wind turbines is presented. Modifications to the airfoil characteristics and the momentum portion of classical blade element-momentum theory are given that improve correlation with measured data. Improvement is particularly evident at low tip speed ratios where aerodynamic stall can occur as the blade experiences high angles of attack. Output power calculated using the modified theory is compared with measured data for several large wind turbines. These wind turbines range in size from the DOE/NASA 100 kW Mod-O (38 m rotor diameter) to the 2000 kW Mod-1 (61 m rotor diameter). The calculated results are in good agreement with measured data from these machines.

  7. Combined Experiment Phase 1. [Horizontal axis wind turbines: wind tunnel testing versus field testing

    SciTech Connect (OSTI)

    Butterfield, C.P.; Musial, W.P.; Simms, D.A.

    1992-10-01

    How does wind tunnel airfoil data differ from the airfoil performance on an operating horizontal axis wind turbine (HAWT) The National Renewable Energy laboratory has been conducting a comprehensive test program focused on answering this question and understanding the basic fluid mechanics of rotating HAWT stall aerodynamics. The basic approach was to instrument a wind rotor, using an airfoil that was well documented by wind tunnel tests, and measure operating pressure distributions on the rotating blade. Based an the integrated values of the pressure data, airfoil performance coefficients were obtained, and comparisons were made between the rotating data and the wind tunnel data. Care was taken to the aerodynamic and geometric differences between the rotating and the wind tunnel models. This is the first of two reports describing the Combined Experiment Program and its results. This Phase I report covers background information such as test setup and instrumentation. It also includes wind tunnel test results and roughness testing.

  8. Design of a Thermal Imaging Diagnostic Using 90-Degree, Off-Axis, Parabolic Mirrors

    SciTech Connect (OSTI)

    Malone, Robert M.; Becker, Steven A.; Dolan, Daniel H.; Hacking, Richard G.; Hickman, Randy J.; Kaufman, Morris I.; Stevens, Gerald D.; Turley, William D.

    2006-09-01

    Thermal imaging is an important, though challenging, diagnostic for shockwave experiments. Shock-compressed materials undergo transient temperature changes that cannot be recorded with standard (greater than ms response time) infrared detectors. A further complication arises when optical elements near the experiment are destroyed. We have designed a thermal-imaging system for studying shock temperatures produced inside a gas gun at Sandia National Laboratories. Inexpensive, diamond-turned, parabolic mirrors relay an image of the shocked target to the exterior of the gas gun chamber through a sapphire vacuum port. The 30005000-nm portion of this image is directed to an infrared camera which acquires a snapshot of the target with a minimum exposure time of 150 ns. A special mask is inserted at the last intermediate image plane, to provide dynamic thermal background recording during the event. Other wavelength bands of this image are split into high-speed detectors operating at 9001700 nm, and at 17003000 nm for timeresolved pyrometry measurements. This system incorporates 90-degree, off-axis parabolic mirrors, which can collect low f/# light over a broad spectral range, for high-speed imaging. Matched mirror pairs must be used so that aberrations cancel. To eliminate image plane tilt, proper tip-to-tip orientation of the parabolic mirrors is required. If one parabolic mirror is rotated 180 degrees about the optical axis connecting the pair of parabolic mirrors, the resulting image is tilted by 60 degrees. Different focal-length mirrors cannot be used to magnify the image without substantially sacrificing image quality. This paper analyzes performance and aberrations of this imaging diagnostic.

  9. Women's History Month: Women of Geothermal

    Broader source: Energy.gov [DOE]

    When it comes to equality in employment for women, EERE's Geothermal Technologies Office is leading the way, literally. Guided by Dr. Susan Hamm as acting director, the program has equal representation of women in the office's science, technology, engineering and mathematics (STEM) positions. EERE celebrates the Women of Geothermal in Women's History Month.

  10. Y-12 and history of clearance designators

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

    and the history of clearance designators One of the major areas of emphasis for the Manhattan Project was to ensure that information about the project remained secure. There was good reason for concern as the information about splitting the atom had recently been announced in the scientific community and thus was known worldwide. Otto Hahn and Fritz Strassmann of Germany split the uranium atom, building on research by Enrico Fermi. The Atomic Archive's biography of Lise Meitner (1878-1968)

  11. Nuclear reactor characteristics and operational history

    Gasoline and Diesel Fuel Update (EIA)

    1. Capacity and Generation, Table 3. Characteristics and Operational History Table 2. U.S. Nuclear Reactor Ownership Data PDF XLS Plant/Reactor Name Generator ID Utility Name - Operator Owner Name % Owned Arkansas Nuclear One 1 Entergy Arkansas Inc Entergy Arkansas Inc 100 Arkansas Nuclear One 2 Entergy Arkansas Inc Entergy Arkansas Inc 100 Beaver Valley 1 FirstEnergy Nuclear Operating Company FirstEnergy Nuclear Generation Corp 100 Beaver Valley 2 FirstEnergy Nuclear Operating Company

  12. Nuclear reactor characteristics and operational history

    Gasoline and Diesel Fuel Update (EIA)

    Nuclear > U.S. reactor operation status tables Nuclear Reactor Operational Status Tables Release date: November 22, 2011 Next release date: TBD See also: Table 1. Capacity and Generation, Table 2. Ownership Data Table 3. Nuclear Reactor Characteristics and Operational History PDF XLS Plant Name Generator ID Type Reactor Supplier and Model Construction Start Grid Connection Original Expiration Date License Renewal Application License Renewal Issued Extended Expiration Arkansas Nuclear One 1

  13. A History of the Southeastern Power Administration

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

    Southeastern Power Administration 1990-2010 SERVING SOUTHEAST the Distribu teD by us Department of energy southeastern Power Administration 2012 A History of the Southeastern Power Administration 1990-2010 SERVING SOUTHEAST the ii Project contribu tors Sponsor us Department of energy, southeastern Power Administration Contracting Agency us Army corps of engineers, Mobile District Author Patricia stallings, brockington and Associates, inc. Design and Editing john cason and Alicia sullivan,

  14. Dual axis radiographic hydrodynamic test facility. Final environmental impact statement, Volume 2: Public comments and responses

    SciTech Connect (OSTI)

    1995-08-01

    On May 12, 1995, the U.S. Department of Energy (DOE) issued the draft Dual Axis Radiographic Hydrodynamic Test Facility Environmental Impact Statement (DARHT EIS) for review by the State of New Mexico, Indian Tribes, local governments, other Federal agencies, and the general public. DOE invited comments on the accuracy and adequacy of the draft EIS and any other matters pertaining to their environmental reviews. The formal comment period ran for 45 days, to June 26, 1995, although DOE indicated that late comments would be considered to the extent possible. As part of the public comment process, DOE held two public hearings in Los Alamos and Santa Fe, New Mexico, on May 31 and June 1, 1995. In addition, DOE made the draft classified supplement to the DARHT EIS available for review by appropriately cleared individuals with a need to know the classified information. Reviewers of the classified material included the State of New Mexico, the U.S. Environmental Protection Agency, the Department of Defense, and certain Indian Tribes. Volume 2 of the final DARHT EIS contains three chapters. Chapter 1 includes a collective summary of the comments received and DOE`s response. Chapter 2 contains the full text of the public comments on the draft DARHT EIS received by DOE. Chapter 3 contains DOE`s responses to the public comments and an indication as to how the comments were considered in the final EIS.

  15. NASTRAN-based computer program for structural dynamic analysis of horizontal axis wind turbines

    SciTech Connect (OSTI)

    Lobitz, D.W.

    1984-01-01

    This paper describes a computer program developed for structural dynamic analysis of horizontal axis wind turbines (HAWTs). It is based on the finite element method through its reliance on NASTRAN for the development of mass, stiffness, and damping matrices of the tower and rotor, which are treated in NASTRAN as separate structures. The tower is modeled in a stationary frame and the rotor in one rotating at a constant angular velocity. The two structures are subsequently joined together (external to NASTRAN) using a time-dependent transformation consistent with the hub configuration. Aerodynamic loads are computed with an established flow model based on strip theory. Aeroelastic effects are included by incorporating the local velocity and twisting deformation of the blade in the load computation. The turbulent nature of the wind, both in space and time, is modeled by adding in stochastic wind increments. The resulting equations of motion are solved in the time domain using the implicit Newmark-Beta integrator. Preliminary comparisons with data from the Boeing/NASA MOD2 HAWT indicate that the code is capable of accurately and efficiently predicting the response of HAWTs driven by turbulent winds.

  16. Precision tool holder with flexure-adjustable, three degrees of freedom for a four-axis lathe

    DOE Patents [OSTI]

    Bono, Matthew J. (Pleasanton, CA); Hibbard, Robin L. (Livermore, CA)

    2008-03-04

    A precision tool holder for precisely positioning a single point cutting tool on 4-axis lathe, such that the center of the radius of the tool nose is aligned with the B-axis of the machine tool, so as to facilitate the machining of precision meso-scale components with complex three-dimensional shapes with sub-.mu.m accuracy on a four-axis lathe. The device is designed to fit on a commercial diamond turning machine and can adjust the cutting tool position in three orthogonal directions with sub-micrometer resolution. In particular, the tool holder adjusts the tool position using three flexure-based mechanisms, with two flexure mechanisms adjusting the lateral position of the tool to align the tool with the B-axis, and a third flexure mechanism adjusting the height of the tool. Preferably, the flexures are driven by manual micrometer adjusters. In this manner, this tool holder simplifies the process of setting a tool with sub-.mu.m accuracy, to substantially reduce the time required to set the tool.

  17. Improvements in dose calculation accuracy for small off-axis targets in high dose per fraction tomotherapy

    SciTech Connect (OSTI)

    Hardcastle, Nicholas; Bayliss, Adam; Wong, Jeannie Hsiu Ding; Rosenfeld, Anatoly B.; Tome, Wolfgang A.

    2012-08-15

    Purpose: A recent field safety notice from TomoTherapy detailed the underdosing of small, off-axis targets when receiving high doses per fraction. This is due to angular undersampling in the dose calculation gantry angles. This study evaluates a correction method to reduce the underdosing, to be implemented in the current version (v4.1) of the TomoTherapy treatment planning software. Methods: The correction method, termed 'Super Sampling' involved the tripling of the number of gantry angles from which the dose is calculated during optimization and dose calculation. Radiochromic film was used to measure the dose to small targets at various off-axis distances receiving a minimum of 21 Gy in one fraction. Measurements were also performed for single small targets at the center of the Lucy phantom, using radiochromic film and the dose magnifying glass (DMG). Results: Without super sampling, the peak dose deficit increased from 0% to 18% for a 10 mm target and 0% to 30% for a 5 mm target as off-axis target distances increased from 0 to 16.5 cm. When super sampling was turned on, the dose deficit trend was removed and all peak doses were within 5% of the planned dose. For measurements in the Lucy phantom at 9.7 cm off-axis, the positional and dose magnitude accuracy using super sampling was verified using radiochromic film and the DMG. Conclusions: A correction method implemented in the TomoTherapy treatment planning system which triples the angular sampling of the gantry angles used during optimization and dose calculation removes the underdosing for targets as small as 5 mm diameter, up to 16.5 cm off-axis receiving up to 21 Gy.

  18. Upper Bound on the First Star Formation History (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Upper Bound on the First Star Formation History Citation Details In-Document Search Title: Upper Bound on the First Star Formation History You are accessing a document from the...

  19. EECBG Success Story: HVAC Upgrade Saving Money, Protecting History...

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

    HVAC Upgrade Saving Money, Protecting History EECBG Success Story: HVAC Upgrade Saving Money, Protecting History November 2, 2010 - 5:37pm Addthis A new heating and cooling system...

  20. Y-12 History | Y-12 National Security Complex

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

    Y-12 History Y-12 History On February 18, 1943, in the midst of the second World War, ground was broken in rural East Tennessee for the first production building at the Y-12...

  1. Request For Report Of Radiation Exposure History Form | Department...

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

    Request For Report Of Radiation Exposure History Form Request For Report Of Radiation Exposure History Form October 29, 2002 U.S. Department of Energy (DOE) form to submit a...

  2. In Celebration of Black History Month, Energy Secretary Moniz...

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

    In Celebration of Black History Month, Energy Secretary Moniz and Director of the National Museum of African Art Dr. Cole Discuss the Art of Science In Celebration of Black History ...

  3. MLK Day/Black History Month DOE Celebration

    Broader source: Energy.gov [DOE]

    Join us as the Department honors both Dr. King and Black History Month with a dialogue on the history of civil rights for all. Secretary Ernest Moniz will open our program.

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

    Open Energy Info (EERE)

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

  5. US Energy Service Company Industry: History and Business Models |

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

    Department of Energy US Energy Service Company Industry: History and Business Models US Energy Service Company Industry: History and Business Models Information about the history of US Energy Service Company including industry history, setbacks, and lessons learned. PDF icon session_1_financing_track_gilligan_en.pdf PDF icon session_1_financing_track_gilligan_cn.pdf More Documents & Publications U.S. Energy Service Company

  6. A History of the Energy Research and Development Administration |

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

    Department of Energy Energy Research and Development Administration A History of the Energy Research and Development Administration A History of the Energy Research and Development Administration - written by Alice L. Buck Washington, D.C.: U.S. Department of Energy, March 1982. 22 pp PDF icon ERDA History.pdf More Documents & Publications The Federal Energy Administration A History of the Atomic Energy Commission Basis for Identification of Disposal Options for R and D for Spent Nuclear

  7. FY 2014 Funding History Detail Spreadsheet | Department of Energy

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

    Budget » FY 2014 Budget Justification » FY 2014 Funding History Detail Spreadsheet FY 2014 Funding History Detail Spreadsheet File FY 2014 Funding History Detail Spreadsheet (3.5 MB) More Documents & Publications Residential Clothes Washers (Appendix J2) FY 2014 Budget Request Statistical Table Report 20.4: Lumen and Chromaticity Maintenance of LED PAR38 Lamps

  8. Chronological History of Federal Energy-Efficient Product Procurement:

    Office of Environmental Management (EM)

    Executive, Legislative and Regulatory Requirements, Actions and Mandates | Department of Energy Chronological History of Federal Energy-Efficient Product Procurement: Executive, Legislative and Regulatory Requirements, Actions and Mandates Chronological History of Federal Energy-Efficient Product Procurement: Executive, Legislative and Regulatory Requirements, Actions and Mandates Document provides a chronological history of the legislative actions and executive orders that contribute to the

  9. Request for Report of Radiation Exposure History

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

    NSO-192 US/DOE (07/2006) NNSA/NSO All Other Editions Obsolete UNITED STATES DEPARTMENT OF ENERGY NATIONAL NUCLEAR SECURITY ADMINISTRATION NEVADA SITE OFFICE P.O. BOX 98518 LAS VEGAS, NEVADA 89193-8518 REQUEST FOR REPORT OF RADIATION EXPOSURE HISTORY ON: (PRINT FULL NAME -- FIRST, MIDDLE, AND LAST, ALSO INDICATE MAIDEN NAME AND ALIASES IF APPLICABLE) Pursuant to the Privacy Act of 1974, and 10 C.F.R. 835 or Title 10, Section 1008 of the Federal Code of Regulations, you are authorized to release

  10. Nuclear reactor characteristics and operational history

    Gasoline and Diesel Fuel Update (EIA)

    2. Ownership Data, Table 3. Characteristics and Operational History Table 1. Nuclear Reactor, State, Type, Net Capacity, Generation, and Capacity Factor PDF XLS Plant/Reactor Name Generator ID State Type 2009 Summer Capacity Net MW(e)1 2010 Annual Generation Net MWh2 Capacity Factor Percent3 Arkansas Nuclear One 1 AR PWR 842 6,607,090 90 Arkansas Nuclear One 2 AR PWR 993 8,415,588 97 Beaver Valley 1 PA PWR 892 7,119,413 91 Beaver Valley 2 PA PWR 885 7,874,151 102 Braidwood Generation Station 1

  11. ,=SIGR AKD PROL'UEim HISTORY OF

    Office of Legacy Management (LM)

    =SIGR AKD PROL'UEim HISTORY /----------. OF u. 9, coliTRAcT w-74l2-FZG-1 Dcprtrnent of Energy Savannah R' ber Operations Of fii PCIBOXA Aiken. South Carolina 29801 B. I. du Pant de Neraure sad Company Alken, SC 2980s Dear Nr. Becheyars volume II, Design and Pmcurernurt Eistory of B&ford Engineer Work# and cliuton Sed-Worka, baa been reviewed for declssslficatim ln reapouae to a request fma 6. U. 0'lUs.r. xnltial revi& request was fa-aln L. ?. shal?nn&, AES, wl.ldngtoo, tq 6. n. O'

  12. Structural Design of a Horizontal-Axis Tidal Current Turbine Composite Blade

    SciTech Connect (OSTI)

    Bir, G. S.; Lawson, M. J.; Li, Y.

    2011-10-01

    This paper describes the structural design of a tidal composite blade. The structural design is preceded by two steps: hydrodynamic design and determination of extreme loads. The hydrodynamic design provides the chord and twist distributions along the blade length that result in optimal performance of the tidal turbine over its lifetime. The extreme loads, i.e. the extreme flap and edgewise loads that the blade would likely encounter over its lifetime, are associated with extreme tidal flow conditions and are obtained using a computational fluid dynamics (CFD) software. Given the blade external shape and the extreme loads, we use a laminate-theory-based structural design to determine the optimal layout of composite laminas such that the ultimate-strength and buckling-resistance criteria are satisfied at all points in the blade. The structural design approach allows for arbitrary specification of the chord, twist, and airfoil geometry along the blade and an arbitrary number of shear webs. In addition, certain fabrication criteria are imposed, for example, each composite laminate must be an integral multiple of its constituent ply thickness. In the present effort, the structural design uses only static extreme loads; dynamic-loads-based fatigue design will be addressed in the future. Following the blade design, we compute the distributed structural properties, i.e. flap stiffness, edgewise stiffness, torsion stiffness, mass, moments of inertia, elastic-axis offset, and center-of-mass offset along the blade. Such properties are required by hydro-elastic codes to model the tidal current turbine and to perform modal, stability, loads, and response analyses.

  13. Near-resonant second-order nonlinear susceptibility in c-axis oriented ZnO nanorods

    SciTech Connect (OSTI)

    Liu, Weiwei; Wang, Kai; Long, Hua; Wang, Bing Lu, Peixiang; Chu, Sheng

    2014-08-18

    Near-resonant second-harmonic generation (SHG) in c-axis oriented ZnO nanorods is studied under the femtosecond laser with wavelength from 780?nm to 810?nm. A highly efficient SHG is obtained, which is attributed to the d{sub 131} component of the second-order nonlinear susceptibility. The largest d{sub 131} value is estimated to be 10.2?pm/V at the pumping wavelength of 800?nm, which indicates a large SHG response of the c-axis oriented ZnO nanorods in the near-resonant region. Theoretical calculation based on finite-difference time-domain simulation suggests a four-fold local-field enhancement of the SHG.

  14. Six-axis multi-anvil press for high-pressure, high-temperature neutron diffraction experiments

    SciTech Connect (OSTI)

    Sano-Furukawa, A. Hattori, T.; Arima, H.; Yamada, A.; Tabata, S.; Kondo, M.; Nakamura, A.; Kagi, H.; Yagi, T.

    2014-11-15

    We developed a six-axis multi-anvil press, ATSUHIME, for high-pressure and high-temperature in situ time-of-flight neutron powder diffraction experiments. The press has six orthogonally oriented hydraulic rams that operate individually to compress a cubic sample assembly. Experiments indicate that the press can generate pressures up to 9.3 GPa and temperatures up to 2000 K using a 6-6-type cell assembly, with available sample volume of about 50 mm{sup 3}. Using a 6-8-type cell assembly, the available conditions expand to 16 GPa and 1273 K. Because the six-axis press has no guide blocks, there is sufficient space around the sample to use the aperture for diffraction and place an incident slit, radial collimators, and a neutron imaging camera close to the sample. Combination of the six-axis press and the collimation devices realized high-quality diffraction pattern with no contamination from the heater or the sample container surrounding the sample. This press constitutes a new tool for using neutron diffraction to study the structures of crystals and liquids under high pressures and temperatures.

  15. Case histories of external microbiologically influenced corrosion

    SciTech Connect (OSTI)

    Pikas, J.L.

    1997-05-01

    External microbiologically influenced corrosion (MIC) is a serious dilemma in the pipeline industry. Even today, it has not been recognized as such because it has been primarily mistaken for galvanic corrosion. Due to the type of coating materials used in the past, the cleaning process or lack of it, and application methods used, all coating systems have the propensity to develop defects and pinholes where disbondment and this type of microbial corrosion could occur. In addition, the pipeline may or may not have had cathodic protection initially and/or consistently applied. Given these factors and the interaction of bacteria from the soil, moisture availability, degree of cathodic protection, and temperature of the pipeline, this paper will discuss the role that microbes play in the disbondment process, thus resulting in corrosion of an underground pipeline. Several case histories, laboratory testing results, and field findings will be presented.

  16. The Livermore Phantom History and Supplementation

    SciTech Connect (OSTI)

    Snyder, Sandra F.; Traub, Richard J.

    2010-03-01

    In vivo monitoring facilities determine the absence or presence of internally entrained radionuclides. To be of greatest utility, the detection systems must detect and quantify the nuclides of interest at levels of interest. Phantoms have been developed to improve measurements at in vivo monitoring facilities. Since the 1970s, the Lawrence Livermore National Laboratory (LLNL, or simply "Livermore") phantom continues to be a well-used tool at lung monitoring facilities, especially for the detection of low-energy emissions from transuranics. The history of its development from need, through design development and current availability, is summarized. The authors have taken the LLNL phantom one step further by scanning the phantom surface and announce the availability of the scan files on the internet.

  17. A History of the Atomic Energy Commission

    DOE R&D Accomplishments [OSTI]

    Buck, Alice L.

    1983-07-01

    This pamphlet traces the history of the US Atomic Energy Commission's twenty-eight year stewardship of the Nation's nuclear energy program, from the signing of the Atomic Energy Act on August 1, 1946 to the signing of the Energy Reorganization Act on October 11, 1974. The Commission's early concentration on the military atom produced sophisticated nuclear weapons for the Nation's defense and made possible the creation of a fleet of nuclear submarines and surface ships. Extensive research in the nuclear sciences resulted in the widespread application of nuclear technology for scientific, medical and industrial purposes, while the passage of the Atomic Energy Act of 1954 made possible the development of a nuclear industry, and enabled the United States to share the new technology with other nations.

  18. Microsoft PowerPoint - Hentschel_KCD Proj's Impact Fed Power...

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

    2015 Projects Impacting Federal Power Kansas City District 2015 Southwestern Federal Hydropower Meeting Branson, MO BUILDING STRONG Stockton Water Supply Reallocation ...

  19. Microsoft PowerPoint - KCD Proj's Impact Fed Power_2014 SWPA...

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

    th estern Federal H dropo er Meeting 2014 Southwestern Federal Hydropower Meeting Tulsa, OK Pete Hentschel, P.E. Chief, Maintenance Engineering Section Operations Division Kansas...

  20. Microsoft PowerPoint - KCD Proj's Impact Fed Power_SWPA Conf...

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

    any operational changes to determine potential adverse impacts. BUILDING STRONG p Harry S. Truman Stilli B i R i Stilling Basin Repair S h d l Schedule 3 Jun -2 Jul: Contract...

  1. LPO5-002-Proj-Poster-STOR-TRSM-OneNev

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

    NEVADA LINE Using advanced electric transmission towers, One Nevada Line improves grid reliability and delivers renewable electricity to high demand areas. INVESTING in AMERICAN...

  2. LPO5-002-Proj-Poster-STOR-TRSM-StephSpin

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

    STEPHENTOWN SPINDLE Using Beacon Power technology, Stephentown Spindle is the first commercial flywheel project in the U.S. to provide frequency regulation. INVESTING in AMERICAN...

  3. 1,"Salt River Proj Ag I & P Dist",16572,1999,"Coronado","Silver...

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

    ... 15,"Anchorage City of",599,1999,"Sub 15","APA Sub Tap",115,"Single Pole",0,0,"397 MCM ACSR",1 16,"Anchorage City of",599,1999,"APA Sub Tap","APA Sub",115,"Single Pole",0,0,"397 ...

  4. LPO5-002-Proj-Poster-STOR-TRSM-OneNev

    Office of Environmental Management (EM)

    NEVADA LINE Using advanced electric transmission towers, One Nevada Line improves grid reliability and delivers renewable electricity to high demand areas. INVESTING in AMERICAN ENERGY OWNERS LS Power Associates, NV Energy & John Hancock LOCATION Eastern Nevada LOAN AMOUNT $343 Million ISSUANCE DATE February 2011 TRANSMISSION CAPACITY 600 MW TRANSMISSION LENGTH 235 Miles

  5. LPO5-002-Proj-Poster-STOR-TRSM-StephSpin

    Office of Environmental Management (EM)

    STEPHENTOWN SPINDLE Using Beacon Power technology, Stephentown Spindle is the first commercial flywheel project in the U.S. to provide frequency regulation. INVESTING in AMERICAN ENERGY OWNER Rockland Power Partners LOCATION Stephentown, New York LOAN AMOUNT $25 Million ISSUANCE DATE March 2012

  6. West Valley Demonstration Project: A Short History and Status | Department

    Office of Environmental Management (EM)

    of Energy Project: A Short History and Status West Valley Demonstration Project: A Short History and Status Presentation made by Bryan C. Bower for the NTSF annual meeting held from May 14-16, 2013 in Buffalo, NY. PDF icon West Valley Demonstration Project: A Short History and Status More Documents & Publications EIS-0337-SA-01: Supplement Analysis EIS-0337: Record of Decision Waste-Incidental-to-Reprocessing Evaluation for the West Valley Demonstration Project Vitrification Mel

  7. Generalized contexts and consistent histories in quantum mechanics

    SciTech Connect (OSTI)

    Losada, Marcelo; Laura, Roberto

    2014-05-15

    We analyze a restriction of the theory of consistent histories by imposing that a valid description of a physical system must include quantum histories which satisfy the consistency conditions for all states. We prove that these conditions are equivalent to imposing the compatibility conditions of our formalism of generalized contexts. Moreover, we show that the theory of consistent histories with the consistency conditions for all states and the formalism of generalized context are equally useful representing expressions which involve properties at different times.

  8. History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    History Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights News & Events Publications History Grand Challenges BES Reports Document Archives Contests Contact BES Home History Print Text Size: A A A FeedbackShare Page The EFRC program commenced in 2009; 46 Centers were selected based on scientific peer review and funded at $2-5 million per year for a five-year initial award period. Altogether, the DOE Office of Science invested $777 million in the first

  9. Hanford Natural Resource Trustee Council History & Accomplishments -

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

    Hanford Site History & Accomplishments About Us Hanford Natural Resource Trustee Council HNRTC Members HNRTC History & Accomplishments Memorandum of Agreement By-Laws Hanford Natural Resource Trustee Council History & Accomplishments Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size The first organizational meeting for the NRTC was held in Richland, WA, April 9, 1993, at the invitation of the U.S. Department of Energy - Richland Operations Office

  10. History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    History Basic Energy Sciences Advisory Committee (BESAC) BESAC Home Meetings Meeting Presentations History Logistics BESAC 2016-2017 Membership Charges/Reports Charter .pdf file (128KB) BES Committees of Visitors Federal Advisory Committees BES Home Meetings History Print Text Size: A A A FeedbackShare Page Given below are short descriptions of the historical Basic Energy Sciences Advisory Committee's activities. Click below on 1997 to Present for details on current activities. 1997 to Present

  11. Workers Make History by Demolishing Manhattan Project Facilities |

    Energy Savers [EERE]

    Department of Energy Workers Make History by Demolishing Manhattan Project Facilities Workers Make History by Demolishing Manhattan Project Facilities February 16, 2016 - 1:45pm Addthis Once K-27 is demolished, it will mark the first-ever cleanup of an entire gaseous diffusion complex anywhere. | Office of Environmental Management video David Sheeley David Sheeley Editor/Writer For the first time in history, workers will complete the demolition and cleanup of an entire gaseous diffusion

  12. Method and device for determining the position of a cutting tool relative to the rotational axis of a spindle-mounted workpiece

    DOE Patents [OSTI]

    Williams, R.R.

    1980-09-03

    The present invention is directed to a method and device for determining the location of a cutting tool with respect to the rotational axis of a spindle-mounted workpiece. A vacuum cup supporting a machinable sacrificial pin is secured to the workpiece at a location where the pin will project along and encompass the rotational axis of the workpiece. The pin is then machined into a cylinder. The position of the surface of the cutting tool contacting the machine cylinder is spaced from the rotational axis of the workpiece a distance equal to the radius of the cylinder.

  13. Recommendation 169: Establishment of an Oak Ridge Oral History Program

    Broader source: Energy.gov [DOE]

    The ORSSAB recommends DOE-ORO fully endorse the establishment of an Oak Ridge Oral History Program and provide necessary assistance.

  14. Rhapsody: I. Structural Properties and Formation History from...

    Office of Scientific and Technical Information (OSTI)

    I. Structural Properties and Formation History from a Statistical Sample of Re-simulated Cluster-size Halos Citation Details In-Document Search Title: Rhapsody: I. Structural...

  15. New Hope Center making history at Y-12

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

    New Hope Center making history at Y-12 Frequently I find it helpful to break away from documenting Y-12's past in these articles to remind us of something of historic significance that is happening right now. The recent visit by the alumni of the Nautilus nuclear submarine crew is an example. Other examples are the Y-12 History Center and the Y-12 New Hope Center. The history center exhibits were placed there to highlight Y-12's history during the ribbon cutting ceremony to celebrate the opening

  16. A History of Geothermal Energy Research and Development in the...

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

    PDF icon geothermalhistory1exploration.pdf More Documents & Publications A History of ... A Roadmap for Strategic Development of Geothermal Exploration Technologies 2011 Peer ...

  17. A History of Geothermal Energy Research and Development in the...

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

    in the United States: Drilling 1976-2006 evaluationegstech2008.pdf A History of Geothermal Energy Research and Development in the United States: Exploration 1976-2006

  18. Two-Sensor System for Absolute Age and Temperature History -...

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

    Technologies Industrial Technologies Find More Like This Return to Search Two-Sensor System for Absolute Age and Temperature History Sandia National Laboratories Contact...

  19. History of the superconducting-magnet bubble chambers

    SciTech Connect (OSTI)

    Derrick, M.; Hyman, L.G.; Pewitt, E.G.

    1980-01-01

    This review covers the development of superconducting magnets, small bubble chambers, and the early history of the 12-foot bubble chamber. (MOW)

  20. Paducah Community Chronicles Site History in New Book

    Broader source: Energy.gov [DOE]

    PADUCAH, Ky. – Members of the Paducah Citizens Advisory Board (CAB) spearheaded the publication of a new book that captures the history of EM’s Paducah site.

  1. HVAC upgrade saving money, protecting history | Department of...

    Energy Savers [EERE]

    HVAC upgrade saving money, protecting history HVAC upgrade saving money, protecting ... According to CCHS, the system is expected to save the organization about 27,500 annually. ...

  2. Organizational History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Organizational History Basic Energy Sciences (BES) BES Home About Organization Chart .pdf ... Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy ...

  3. History of velocimetry 2. (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    2. Citation Details In-Document Search Title: History of velocimetry 2. Abstract not provided. Authors: Jilek, Brook Anton Publication Date: 2012-10-01 OSTI Identifier: 1116267 ...

  4. History of velocimetry draft. (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    draft. Citation Details In-Document Search Title: History of velocimetry draft. Abstract not provided. Authors: Jilek, Brook Anton Publication Date: 2012-10-01 OSTI Identifier: ...

  5. Maintaining History of the ARM Climate Research Facility Data

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

    Maintaining History of the ARM Climate Research Facility Data Koontz, Annette Pacific Northwest National Laboratory Sivaraman, Chitra Pacific Northwest National Laboratory Martin,...

  6. A uniform history for galaxy evolution

    SciTech Connect (OSTI)

    Steinhardt, Charles L.; Speagle, Josh S.

    2014-11-20

    Recent observations indicate a remarkable similarity in the properties of evolving galaxies at fixed mass and redshift, prompting us to consider the possibility that most galaxies may evolve with a common history encompassing star formation, quasar accretion, and eventual quiescence. We quantify this by defining a synchronization timescale for galaxies as a function of mass and redshift that characterizes the extent to which different galaxies of a common mass are evolving in the same manner at various cosmic epochs. We measure this synchronization timescale using nine different star-forming galaxy observations from the literature and Sloan Digital Sky Survey quasar observations spanning 0 < z ? 6. Surprisingly, this synchronization timescale is a constant, approximately 1.5 Gyr for all combinations of mass and time. We also find that the ratio between the stellar mass of galaxies turning off star formation and black hole mass of turnoff quasars is approximately 30:1, much lower than the 500:1 for quiescent galaxies at low redshift. As a result, we propose a model in which the star-forming 'main sequence', analogous quasar behavior, and other observations form a galactic evolution 'main sequence', in which star formation occurs earliest, followed by supermassive black hole accretion, and feedback between the two are dominated by deterministic rather than stochastic processes.

  7. Preliminary analysis of the audible noise of constant-speed, horizontal-axis wind-turbine generators

    SciTech Connect (OSTI)

    Keast, D. N.; Potter, R. C.

    1980-07-01

    An analytical procedure has been developed for calculating certain aerodynamic sound levels produced by large, horizontal-axis wind-turbine generators (WTG's) such as the DOE/NASA Mods-0, -0A, -1, and -2. This preliminary procedure is based upon very limited field data from the Mod-0. It postulates a noise component due to the (constant) rotation of the blades of the WTG, plus a wake-noise component that increases with the square of the power produced by the WTG. Mechanical sound from machinery, and low-frequency impulsive sounds produced by blade interaction with the wake of the support tower are not considered.

  8. Use of off-axis injection as an alternative to geometrically merging beams in an energy-recovering linac

    DOE Patents [OSTI]

    Douglas, David R.

    2012-01-10

    A method of using off-axis particle beam injection in energy-recovering linear accelerators that increases operational efficiency while eliminating the need to merge the high energy re-circulating beam with an injected low energy beam. In this arrangement, the high energy re-circulating beam and the low energy beam are manipulated such that they are within a predetermined distance from one another and then the two immerged beams are injected into the linac and propagated through the system. The configuration permits injection without geometric beam merging as well as decelerated beam extraction without the use of typical beamline elements.

  9. Magnetic domain structure in nanocrystalline Ni-Zn-Co spinel ferrite thin films using off-axis electron holography

    SciTech Connect (OSTI)

    Zhang, D.; Ray, N. M.; Petuskey, W. T.; Smith, D. J.; McCartney, M. R.

    2014-08-28

    We report a study of the magnetic domain structure of nanocrystalline thin films of nickel-zinc ferrite. The ferrite films were synthesized using aqueous spin-spray coating at low temperature (?90?C) and showed high complex permeability in the GHz range. Electron microscopy and microanalysis revealed that the films consisted of columnar grains with uniform chemical composition. Off-axis electron holography combined with magnetic force microscopy indicated a multi-grain domain structure with in-plane magnetization. The correlation between the magnetic domain morphology and crystal structure is briefly discussed.

  10. Statistics of particle time-temperature histories.

    SciTech Connect (OSTI)

    Hewson, John C.; Lignell, David O.; Sun, Guangyuan

    2014-10-01

    Particles in non - isothermal turbulent flow are subject to a stochastic environment tha t produces a distribution of particle time - temperature histories. This distribution is a function of the dispersion of the non - isothermal (continuous) gas phase and the distribution of particles relative to that gas phase. In this work we extend the one - dimensional turbulence (ODT) model to predict the joint dispersion of a dispersed particle phase and a continuous phase. The ODT model predicts the turbulent evolution of continuous scalar fields with a model for the cascade of fluctuations to smaller sc ales (the 'triplet map') at a rate that is a function of the fully resolved one - dimens ional velocity field . Stochastic triplet maps also drive Lagrangian particle dispersion with finite Stokes number s including inertial and eddy trajectory - crossing effect s included. Two distinct approaches to this coupling between triplet maps and particle dispersion are developed and implemented along with a hybrid approach. An 'instantaneous' particle displacement model matches the tracer particle limit and provide s an accurate description of particle dispersion. A 'continuous' particle displacement m odel translates triplet maps into a continuous velocity field to which particles respond. Particles can alter the turbulence, and modifications to the stochastic rate expr ession are developed for two - way coupling between particles and the continuous phase. Each aspect of model development is evaluated in canonical flows (homogeneous turbulence, free - shear flows and wall - bounded flows) for which quality measurements are ava ilable. ODT simulations of non - isothermal flows provide statistics for particle heating. These simulations show the significance of accurately predicting the joint statistics of particle and fluid dispersion . Inhomogeneous turbulence coupled with the in fluence of the mean flow fields on particles of varying properties alter s particle dispersion. The joint particle - temperature dispersion leads to a distribution of temperature histories predicted by the ODT . Predictions are shown for the lower moments an d the full distributions of the particle positions, particle - observed gas temperatures and particle temperatures. An analysis of the time scales affecting particle - temperature interactions covers Lagrangian integral time scales based on temperature autoco rrelations, rates of temperature change associated with particle motion relative to the temperature field and rates of diffusional change of temperatures. These latter two time scales have not been investigated previously; they are shown to be strongly in termittent having peaked distributions with long tails. The logarithm of the absolute value of these time scales exhibits a distribution closer to normal. A cknowledgements This work is supported by the Defense Threat Reduction Agency (DTRA) under their Counter - Weapons of Mass Destruction Basic Research Program in the area of Chemical and Biological Agent Defeat under award number HDTRA1 - 11 - 4503I to Sandia National Laboratories. The authors would like to express their appreciation for the guidance provi ded by Dr. Suhithi Peiris to this project and to the Science to Defeat Weapons of Mass Destruction program.

  11. DETECTION OF SEMIMAJOR AXIS DRIFTS IN 54 NEAR-EARTH ASTEROIDS: NEW MEASUREMENTS OF THE YARKOVSKY EFFECT

    SciTech Connect (OSTI)

    Nugent, C. R.; Margot, J. L.; Chesley, S. R.; Vokrouhlicky, D.

    2012-08-15

    We have identified and quantified semimajor axis drifts in near-Earth asteroids (NEAs) by performing orbital fits to optical and radar astrometry of all numbered NEAs. We focus on a subset of 54 NEAs that exhibit some of the most reliable and strongest drift rates. Our selection criteria include a Yarkovsky sensitivity metric that quantifies the detectability of semimajor axis drift in any given data set, a signal-to-noise metric, and orbital coverage requirements. In 42 cases, the observed drifts ({approx}10{sup -3} AU Myr{sup -1}) agree well with numerical estimates of Yarkovsky drifts. This agreement suggests that the Yarkovsky effect is the dominant non-gravitational process affecting these orbits, and allows us to derive constraints on asteroid physical properties. In 12 cases, the drifts exceed nominal Yarkovsky predictions, which could be due to inaccuracies in our knowledge of physical properties, faulty astrometry, or modeling errors. If these high rates cannot be ruled out by further observations or improvements in modeling, they would be indicative of the presence of an additional non-gravitational force, such as that resulting from a loss of mass of order a kilogram per second. We define the Yarkovsky efficiency f{sub Y} as the ratio of the change in orbital energy to incident solar radiation energy, and we find that typical Yarkovsky efficiencies are {approx}10{sup -5}.

  12. Building 9213s earliest history … Bill Sergeant

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

    9213's earliest history - Bill Sergeant One of the joys of writing early history of Y-12 and Oak Ridge is the periodic phone calls I get from Bill Sergeant. Bill's memory is amazing. When I write about the times when Bill was "living the experiences," he often adds valuable content to the history. Such is the case with Building 9213. First, let's look at a bit of background on Bill's career. Bill says, "In my Manhattan District days my energy was concentrated on guarding the

  13. Celebrating the History of Women in STEM | Department of Energy

    Energy Savers [EERE]

    the History of Women in STEM Celebrating the History of Women in STEM March 1, 2016 - 11:30am Addthis Celebrating the History of Women in STEM Allison Lantero Allison Lantero Digital Content Specialist, Office of Public Affairs Carly Wilkins Carly Wilkins Multimedia Designer How can I participate? Follow the Energy Department on Instagram. On Thursday mornings in March, we'll post a new illustrated portrait of an important woman in a STEM field. Guess who she is, then look for the answer at 3

  14. New Book Updates INL's History, Documents a Decade of Transformation |

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

    Department of Energy New Book Updates INL's History, Documents a Decade of Transformation New Book Updates INL's History, Documents a Decade of Transformation June 21, 2012 - 12:00pm Addthis Media Contacts Brad Bugger 208-526-0833 Tim Jackson 208-526-8484 The U.S. Department of Energy is releasing an update to the history of the Idaho National Laboratory, documenting a decade of transformation at the laboratory, and a "decade of doing" for the Idaho Cleanup Project.

  15. Request For Report Of Radiation Exposure History Form | Department of

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

    Energy Request For Report Of Radiation Exposure History Form Request For Report Of Radiation Exposure History Form October 29, 2002 U.S. Department of Energy (DOE) form to submit a request for an individual's dose history to the REMS Project Manager to obtain a report of the individual's dose records as reported to REMS. Note that the dose records in the REMS database cover the years 1987 to the present. Some sites have voluntarily submitted historical records for data prior to 1987 which

  16. National Museum of Nuclear Science & History Opens WIPP Exhibit |

    Office of Environmental Management (EM)

    Department of Energy Museum of Nuclear Science & History Opens WIPP Exhibit National Museum of Nuclear Science & History Opens WIPP Exhibit November 22, 2011 - 3:17pm Addthis To celebrate the WIPP's 10,000th shipment of defense-related TRU waste, the National Museum of Nuclear Science & History added a new exhibit, which includes one the receptacles, pictured above, used by the Energy Department to ship transuranic (TRU) waste from sites located across the country to the Waste

  17. Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine

    SciTech Connect (OSTI)

    Lawson, M. J.; Li, Y.; Sale, D. C.

    2011-10-01

    This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

  18. Download Energy.gov's Women's History Month Illustrations

    Broader source: Energy.gov [DOE]

    During Women's History Month we rolled out some beautiful illustrations of Mae Jemison, Annie Easley, Chien-Shiung Wu and Ellen Ochoa. You can now download the poster-sized versions of these illustrations.

  19. A History or Geothermal Energy Research and Development in the...

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

    history of geothermal energy R&D in the U.S., 1976-2006 geothermalhistory4conversion.pdf More Documents & Publications Water Use in the Development and Operations of Geothermal...

  20. SCIENCE ON SATURDAY- "A Short History of Length" | Princeton...

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

    9, 2013, 9:30am Science On Saturday MBG Auditorium SCIENCE ON SATURDAY- "A Short History of Length" Professor Joel Langer Department of Mathematics, Case Western Reserve University...

  1. NMOCD - Form G-107 - Geothermal Resources Well History | Open...

    Open Energy Info (EERE)

    Jump to: navigation, search OpenEI Reference LibraryAdd to library General: NMOCD - Form G-107 - Geothermal Resources Well History Author State of New Mexico Energy and Minerals...

  2. Energy history chronology from World War II to the present

    SciTech Connect (OSTI)

    Dean, P.C.

    1982-08-01

    This report provides a basic guide to the major Presidential, Legislative, Judicial, and Federal agency actions relating to energy policy, research, development, and regulation in recent years. The chronology is arranged synoptically, allowing users to reference easily the historical context in which each event occurred. Summaries of Presidential, Legislative, and Judicial actions relating to energy, rosters of federal energy officials, and a genealogy of federal energy agencies are also provided in separate appendices. The Energy History Chronology was prepared in conjunction with the History Division's series of pamphlets on the Institutional Origins of the Department of Energy. The series includes concise histories of the Department of Energy, the Energy Research and Development Administration, the Federal Energy Administration, and the Atomic Energy Commission. All significant events and achievements noted in the institutional history are also listed.

  3. Creating orbiting vorticity vectors in magnetic particle suspensions through field symmetry transitions–a route to multi-axis mixing

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

    Martin, James E.; Solis, Kyle Jameson

    2015-11-09

    It has recently been reported that two types of triaxial electric or magnetic fields can drive vorticity in dielectric or magnetic particle suspensions, respectively. The first type-symmetry -- breaking rational fields -- consists of three mutually orthogonal fields, two alternating and one dc, and the second type -- rational triads -- consists of three mutually orthogonal alternating fields. In each case it can be shown through experiment and theory that the fluid vorticity vector is parallel to one of the three field components. For any given set of field frequencies this axis is invariant, but the sign and magnitude ofmore » the vorticity (at constant field strength) can be controlled by the phase angles of the alternating components and, at least for some symmetry-breaking rational fields, the direction of the dc field. In short, the locus of possible vorticity vectors is a 1-d set that is symmetric about zero and is along a field direction. In this paper we show that continuous, 3-d control of the vorticity vector is possible by progressively transitioning the field symmetry by applying a dc bias along one of the principal axes. Such biased rational triads are a combination of symmetry-breaking rational fields and rational triads. A surprising aspect of these transitions is that the locus of possible vorticity vectors for any given field bias is extremely complex, encompassing all three spatial dimensions. As a result, the evolution of a vorticity vector as the dc bias is increased is complex, with large components occurring along unexpected directions. More remarkable are the elaborate vorticity vector orbits that occur when one or more of the field frequencies are detuned. As a result, these orbits provide the basis for highly effective mixing strategies wherein the vorticity axis periodically explores a range of orientations and magnitudes.« less

  4. Creating orbiting vorticity vectors in magnetic particle suspensions through field symmetry transitions–a route to multi-axis mixing

    SciTech Connect (OSTI)

    Martin, James E.; Solis, Kyle Jameson

    2015-11-09

    It has recently been reported that two types of triaxial electric or magnetic fields can drive vorticity in dielectric or magnetic particle suspensions, respectively. The first type-symmetry -- breaking rational fields -- consists of three mutually orthogonal fields, two alternating and one dc, and the second type -- rational triads -- consists of three mutually orthogonal alternating fields. In each case it can be shown through experiment and theory that the fluid vorticity vector is parallel to one of the three field components. For any given set of field frequencies this axis is invariant, but the sign and magnitude of the vorticity (at constant field strength) can be controlled by the phase angles of the alternating components and, at least for some symmetry-breaking rational fields, the direction of the dc field. In short, the locus of possible vorticity vectors is a 1-d set that is symmetric about zero and is along a field direction. In this paper we show that continuous, 3-d control of the vorticity vector is possible by progressively transitioning the field symmetry by applying a dc bias along one of the principal axes. Such biased rational triads are a combination of symmetry-breaking rational fields and rational triads. A surprising aspect of these transitions is that the locus of possible vorticity vectors for any given field bias is extremely complex, encompassing all three spatial dimensions. As a result, the evolution of a vorticity vector as the dc bias is increased is complex, with large components occurring along unexpected directions. More remarkable are the elaborate vorticity vector orbits that occur when one or more of the field frequencies are detuned. As a result, these orbits provide the basis for highly effective mixing strategies wherein the vorticity axis periodically explores a range of orientations and magnitudes.

  5. The Brief History and Future Development of Earth System Models:

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

    Brief History and Future Development of Earth System Models: Resolution and Complexity Warren M. Washington National Center for Atmospheric Research NERSC Lecture Series at Berkeley Lab May, 2014 Overview * Brief history of climate modeling * Brief discussion of computational methods * Environmental Justice connected to climate change * Behind the scenes White House origin of the U. S. Global Change Research Program (USGCRP) * The future of the USGCRP and National Climate Assessment The next two

  6. OSTI History, Office of Scientific and Technical Information, USDOE

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

    OSTI History Accelerating Science Discovery: From the '40s to the Future Timeline History 1940 Answering the Call 1950s Expanding Internationally 1960s Supporting Education 1970s Beyond Nuclear 1980s Forging Partnerships 1990s Profund Change 2000s Accelerating Discovery OSTI has long been committed to ensuring citizens have appropriate access to their government's research results. OSTI is dedicated to the principle that, to advance science, research must be shared. OSTI works to accelerate the

  7. HISTORY OF WEAK INTERACTIONS. (Technical Report) | SciTech Connect

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

    HISTORY OF WEAK INTERACTIONS. Citation Details In-Document Search Title: HISTORY OF WEAK INTERACTIONS. × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is also available for sale to the public from the National Technical

  8. History by The Department of Energy's Other Major Laboratories and

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

    Facilities BY THE DEPARTMENT OF ENERGY'S Other Major Laboratories and Facilities Ames Laboratory Ames Laboratory-Shaping Science for 60 Years A History of Innovation Ames Achievements Listing of Major Labs and Facilities Top The New Brunswick Laboratory (NBL) History New Brunswick Lab Marks Its 50th Anniversary NBL Achievements Listing of Major Labs and Facilities Top Oak Ridge Institute for Science and Education (ORISE) About ORISE: Message from the Director Oak Ridge Institute for Science

  9. History of The Department of Energy's National Laboratories

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

    OF THE DEPARTMENT OF ENERGY'S National Laboratories Argonne National Laboratory (ANL) Argonne National Laboratory History Celebrating Six Decades of Outstanding Scientific Achievement... and Beyond Frontiers: Research Highlights 1946-1996 ANL Achievements Listing of National Labs Top Brookhaven National Laboratory (BNL) 60 Years of Discovery 1947-2007: Brookhaven National Laboratory Brookhaven History Video Games-Did They Begin at Brookhaven? BNL Achievements Listing of National Labs Top Fermi

  10. What is the History of the NMMSS? | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration History of the NMMSS? | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs

  11. Northern New Mexican pueblo preserves cultural history through

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

    collaborative tours with Los Alamos National Laboratory Pueblo preserves cultural history through collaborative tours Northern New Mexican pueblo preserves cultural history through collaborative tours with Los Alamos National Laboratory San Ildefonso Pueblo's Summer Education Enhancement Program brought together academic and cultural learning in the form of a recent tour of Cave Kiva Trail in Mortandad Canyon. August 24, 2015 Students from the San Ildefonso Pueblo Summer Education

  12. DOE - NNSA/NFO -- Photo Library NNSS History

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

    Nevada National Security Site History NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office Photo Library - Nevada National Security Site History The Nevada National Security Site story begins in 1948 after the atomic test series Operation Sandstone in the Enewetak atoll. In 1950, a more complete survey of the south site, amid the Las Vegas Bombing and Gunnery Range, was conducted and resulted in test officials' endorsements. In December, the United States Air Force, landlord of the

  13. Dedication, Innovation, and Courage: A Short History of Y-12

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

    Dedication, Innovation, and Courage: A Short History of Y-12 Dedication, Innovation, and Courage: A Short History of Y-12 Page | i This booklet was written and compiled by Eve Whittenburg in the year 2012. Articles were written by Y-12 National Security Complex Historian D. Ray Smith. A sincere thank you goes out to everyone who contributed with historical materials. Page | ii Page | 1 Table of Contents Table of Contents

  14. History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    History New Brunswick Laboratory (NBL) NBL Home About Organization Chart .pdf file (269KB) Points of Contact (POCs) History Directions Jobs Programs Certified Reference Materials (CRMs) Training NEPA Documents News Safety Data Sheets (SDS) for New Brunswick Laboratory Certified Reference Materials (CRM) Contact Information New Brunswick Laboratory U.S. Department of Energy Building 350 9800 South Cass Avenue Argonne, IL 60439-4899 P: (630) 252-2442 (NBL) P: (630) 252-2767 (CRM sales) F: (630)

  15. Organizational History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Organizational History Operations Program Management (OPM) OPM Home About Staff Organization Chart .pdf file (103KB) SLI Budget S&S Budget Jobs Organizational History Science Laboratories Infrastructure (SLI) Program Safeguards & Security (S&S) Program Sustainability Contact Information Operations Program Management U.S. Department of Energy SC-33/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-8429 F: (301) 903-7047 More Information » About

  16. DOE - NNSA/NFO -- Nevada National Security Site History

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

    Site History NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office Nevada National Security Site History Photo of NTS Following the Trinity test and the bombings of Hiroshima and Nagasaki, military officials still knew very little about the effects, especially on naval targets, of nuclear weapons. Accordingly, the Joint Chiefs of Staff requested and received Presidential approval to conduct a test series during the summer of 1946. The test series, named Crossroads, was conducted at

  17. Microsoft Word - S04932 History final.doc

    Office of Legacy Management (LM)

    FUSRAP History of the Chupadera Mesa, NM, Site December 2008 Doc. No. S0493200 (FUSRAP NM.04-5) Page 1 of 9 FUSRAP History of the Chupadera Mesa, NM, Site The following historical summary is provided to document the inclusion of the Chupadera Mesa, NM, Site into the Formerly Utilized Sites Remedial Action Program (FUSRAP). Although no remedial action was required, the site met eligibility criterion and was included under FUSRAP, under which the final radiological surveys were performed.

  18. Office of Secure Transportation History | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration History | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working

  19. Black History Month: Former Energy Secretary Broke Barriers and Advanced

    Energy Savers [EERE]

    Clean Energy | Department of Energy Black History Month: Former Energy Secretary Broke Barriers and Advanced Clean Energy Black History Month: Former Energy Secretary Broke Barriers and Advanced Clean Energy February 19, 2015 - 1:30pm Addthis Former Energy Secretary Hazel O'Leary greets contestants of the Solar Car Challenge Competition in 1995. O’Leary was the first Energy Secretary to link energy policy decisions to the health and quality of the environment. | Photo by Warren Gretz,

  20. A History of Geothermal Energy in America | Department of Energy

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

    Information Resources » Geothermal Basics » A History of Geothermal Energy in America A History of Geothermal Energy in America Archaeological evidence shows that the first human use of geothermal resources in North America occurred more than 10,000 years ago with the settlement of Paleo-Indians at hot springs. The springs served as a source of warmth and cleansing, their minerals as a source of healing. While people still soak in shallow pools heated by the earth, engineers are developing

  1. A History of the Southeastern Power Administration (1990 - 2010) |

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

    Department of Energy About Us » A History of the Southeastern Power Administration (1990 - 2010) A History of the Southeastern Power Administration (1990 - 2010) Southeastern Power Administration was established in 1950 by the Secretary of the Interior to carry out the functions assigned to the Secretary by the Flood Control Act of 1944. In 1977, Southeastern was transferred to the newly created United States Department of Energy. Southeastern, headquartered in Elberton, Georgia, is

  2. Dismantling History: The Final W62 Warhead | Department of Energy

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

    Dismantling History: The Final W62 Warhead Dismantling History: The Final W62 Warhead August 12, 2010 - 12:33pm Addthis John Schueler John Schueler Former New Media Specialist, Office of Public Affairs Yesterday, Secretary Chu and National Nuclear Security Administration Administrator Tom D'Agostino traveled to Amarillo, Texas, to visit NNSA's Pantex Plant, where the nation's nuclear stockpile is maintained and weapons are assembled and dismantled. Pantex plays a vital role in President Obama's

  3. History of Women at the Energy Department | Department of Energy

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

    Women at the Energy Department History of Women at the Energy Department March 27, 2014 - 5:55pm Addthis Dot Harris Dot Harris Director, Office of Economic Impact and Diversity Terry Fehner Terry Fehner Historian, Federal Preservation Officer Women have been making a significant impact in science, technology, engineering and mathematics (STEM) fields for centuries. Join the Energy Department in celebrating Women's History Month by viewing this timeline for a glimpse of the accomplishments of

  4. Making Solar Power History at Ivanpah | Department of Energy

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

    Solar Power History at Ivanpah Making Solar Power History at Ivanpah February 14, 2014 - 6:00pm Addthis The Ivanpah Solar Energy Generating System was dedicated on Thursday, February 13, 2014. | Photo courtesy of Mingasson/Getty Images for Bechtel. The Ivanpah Solar Energy Generating System was dedicated on Thursday, February 13, 2014. | Photo courtesy of Mingasson/Getty Images for Bechtel. Marissa Newhall Marissa Newhall Director of Digital Strategy & Communications More on Ivanpah Learn

  5. Celebrating Black History Month with DOE's Christopher Smith | Department

    Office of Environmental Management (EM)

    of Energy Black History Month with DOE's Christopher Smith Celebrating Black History Month with DOE's Christopher Smith February 16, 2011 - 12:08pm Addthis Christopher A. Smith Christopher A. Smith Assistant Secretary for Fossil Energy Throughout the month of February, we've been introducing remarkable African Americans who are working to advance the President's clean energy agenda. This week we're highlighting Christopher Smith, the Department's Deputy Assistant Secretary for Oil and

  6. Commemorating Black History: Contributions of African Americans to the

    Office of Environmental Management (EM)

    Manhattan Project | Department of Energy Commemorating Black History: Contributions of African Americans to the Manhattan Project Commemorating Black History: Contributions of African Americans to the Manhattan Project February 21, 2013 - 12:00pm Addthis July 20, 1944 July 20, 1944 September 21, 1944 September 21, 1944 March 24, 1944 March 24, 1944 June 27, 1944 June 27, 1944 July 20, 1944 September 21, 1944 March 24, 1944 June 27, 1944 The Department of Energy (DOE) commissioned an exhibit

  7. Energy Department Announces Largest Energy Efficiency Standard in History |

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

    Department of Energy Energy Department Announces Largest Energy Efficiency Standard in History Energy Department Announces Largest Energy Efficiency Standard in History December 17, 2015 - 12:43pm Addthis New efficiency standards expected to save more energy than any other standard issued by the Energy Department to date. New efficiency standards expected to save more energy than any other standard issued by the Energy Department to date. News Media Contact: (202) 586-4940 DOENews@hq.doe.gov

  8. Mentor Protege Overview and History | Department of Energy

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

    Overview and History Mentor Protege Overview and History Overview The Department of Energy (DOE) Mentor-Protégé Program is designed to encourage DOE prime contractors to assist small disadvantaged firms certified by the Small Business Administration (SBA) under Section 8(a) of the Small Business Act 8(a), other small disadvantaged businesses, women-owned small businesses, Historically Black Colleges and Universities, and other minority institutions of higher learning, and small business

  9. EM Launches First-Ever Interactive Timeline on Cleanup's History |

    Office of Environmental Management (EM)

    Department of Energy Launches First-Ever Interactive Timeline on Cleanup's History EM Launches First-Ever Interactive Timeline on Cleanup's History March 5, 2014 - 12:00pm Addthis Visitors to EM's booth at the annual Waste Management Symposia international conference participate in demonstrations of the new timeline. Visitors to EM's booth at the annual Waste Management Symposia international conference participate in demonstrations of the new timeline. The timeline details EM’s key

  10. Fehner and Holl, Department of Energy, 1977-1994: A Summary History...

    Energy Savers [EERE]

    History Terrence R. Fehner and Jack M. Holl. Department of Energy, 1977-1994: A Summary History. DOEHR-0098. Washington, D.C.: Department of Energy, 1994. 142 pp. History Office...

  11. Inferior Pancreaticoduodenal Artery Aneurysms Associated with Occlusive Lesions of the Celiac Axis: Diagnosis, Treatment Options, Outcomes, and Review of the Literature

    SciTech Connect (OSTI)

    Flood, Karen Nicholson, Anthony A.

    2013-06-15

    Purpose. To describe the presentation, treatment, and outcomes for 14 patients with aneurysms of the inferior pancreaticoduodenal arteries associated with occlusive lesions of the celiac axis, and to review the literature for similar cases. Methods, Over a period of 12 years, 14 patients (10 women and 4 men) ranging in age from 26 to 50 (mean 46) years were demonstrated to have aneurysms of the inferior pancreaticoduodenal artery origin associated with stenosis or occlusion of the celiac axis. All patients were treated by a combination of surgery and interventional radiology. Results. Outcome data collected between 3 months and 4 years (mean 2 years) demonstrated that all aneurysms remained excluded, and all 14 patients were well. The 49 case reports in the literature confirm the findings of this cohort. Conclusion. In inferior pancreaticoduodenal artery aneurysm resulting from celiac occlusive disease, endovascular treatment is best achieved by stenting the celiac axis and/or embolizing the aneurysm when necessary.

  12. Method and device for determining the position of a cutting tool relative to the rotational axis of a spindle-mounted workpiece

    DOE Patents [OSTI]

    Williams, Richard R. (Oak Ridge, TN)

    1982-01-01

    The present invention is directed to a method and device for determining the location of a cutting tool with respect to the rotational axis of a spindle-mounted workpiece. A vacuum cup supporting a machinable sacrifical pin is secured to the workpiece at a location where the pin will project along and encompass the rotational axis of the workpiece. The pin is then machined into a cylinder. The position of the surface of the cutting tool contacting the machine cylinder is spaced from the rotational aixs of the workpiece a distance equal to the radius of the cylinder.

  13. HISTORY OF THE ORIGIN OF THE CHEMICAL ELEMENTS AND THEIR DISCOVERIES...

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

    Conference: HISTORY OF THE ORIGIN OF THE CHEMICAL ELEMENTS AND THEIR DISCOVERIES. Citation Details In-Document Search Title: HISTORY OF THE ORIGIN OF THE CHEMICAL ELEMENTS AND...

  14. History of the FreedomCAR Environmental Science and Health Impacts...

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

    History of the FreedomCAR Environmental Science and Health Impacts Activity History of the FreedomCAR Environmental Science and Health Impacts Activity 2004 Diesel Engine Emissions...

  15. Germantown Site History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    History Germantown Site History Basic Energy Sciences (BES) BES Home About Organization ... Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy ...

  16. History dependent quantum random walks as quantum lattice gas automata

    SciTech Connect (OSTI)

    Shakeel, Asif E-mail: dmeyer@math.ucsd.edu Love, Peter J. E-mail: dmeyer@math.ucsd.edu; Meyer, David A. E-mail: dmeyer@math.ucsd.edu

    2014-12-15

    Quantum Random Walks (QRW) were first defined as one-particle sectors of Quantum Lattice Gas Automata (QLGA). Recently, they have been generalized to include history dependence, either on previous coin (internal, i.e., spin or velocity) states or on previous position states. These models have the goal of studying the transition to classicality, or more generally, changes in the performance of quantum walks in algorithmic applications. We show that several history dependent QRW can be identified as one-particle sectors of QLGA. This provides a unifying conceptual framework for these models in which the extra degrees of freedom required to store the history information arise naturally as geometrical degrees of freedom on the lattice.

  17. Development and Verification of a Computational Fluid Dynamics Model of a Horizontal-Axis Tidal Current Turbine

    SciTech Connect (OSTI)

    Lawson, Mi. J.; Li, Y.; Sale, D. C.

    2011-01-01

    This paper describes the development of a computational fluid dynamics (CFD) methodology to simulate the hydrodynamics of horizontal-axis tidal current turbines (HATTs). First, an HATT blade was designed using the blade element momentum method in conjunction with a genetic optimization algorithm. Several unstructured computational grids were generated using this blade geometry and steady CFD simulations were used to perform a grid resolution study. Transient simulations were then performed to determine the effect of time-dependent flow phenomena and the size of the computational timestep on the numerical solution. Qualitative measures of the CFD solutions were independent of the grid resolution. Conversely, quantitative comparisons of the results indicated that the use of coarse computational grids results in an under prediction of the hydrodynamic forces on the turbine blade in comparison to the forces predicted using more resolved grids. For the turbine operating conditions considered in this study, the effect of the computational timestep on the CFD solution was found to be minimal, and the results from steady and transient simulations were in good agreement. Additionally, the CFD results were compared to corresponding blade element momentum method calculations and reasonable agreement was shown. Nevertheless, we expect that for other turbine operating conditions, where the flow over the blade is separated, transient simulations will be required.

  18. Status of Advanced Tokamak Scenario Modeling with Off-Axis Electron Cyclotron Current Drive in DIII-D

    SciTech Connect (OSTI)

    M. Murakami; H.E. St.John; T.A. Casper; M.S. Chu; J.C. DeBoo; C.M. Greenfield; J.E. Kinsey; L.L. Lao; R.J. La Haye; Y.R. Lin-Liu; T.C. Luce; P.A. Politzer; B.W. Rice; G.M. Staebler; T.S. Taylor; M.R. Wade

    1999-12-01

    The status of modeling work focused on developing the advanced tokamak scenarios in DIII-D is discussed. The objectives of the work are two-fold: (1) to develop AT scenarios with ECCD using time-dependent transport simulations, coupled with heating and current drive models, consistent with MHD equilibrium and stability; and (2) to use time-dependent simulations to help plan experiments and to understand the key physics involved. Time-dependent simulations based on transport coefficients derived from experimentally achieved target discharges are used to perform AT scenario modeling. The modeling indicates off-axis ECCD with approximately 3 MW absorbed power can maintain high-performance discharges with q{sub min} > 1 for 5 to 10 s. The resultant equilibria are calculated to be stable to n = 1 pressure driven modes. The plasma is well into the second stability regime for high-n ballooning modes over a large part of the plasma volume. The role of continuous localized ECCD is studied for stabilizing m/n = 2/1 tearing modes. The progress towards validating current drive and transport models, consistent with experimental results, and developing self-consistent, integrated high performance AT scenarios is discussed.

  19. One-Axis Trackers -- Improved Reliability, Durability, Performance, and Cost Reduction; Final Subcontract Technical Status Report, 2 May 2006 - 31 August 2007

    SciTech Connect (OSTI)

    Shingleton, J.

    2008-02-01

    The overall objective of this subcontract is to reduce the total cost of electricity generated by single-axis tracking solar energy systems for utility and other large-scale commercial applications by improving performance and reliability and by reducing installation time, cost, and environmental impact.

  20. Building 9213 … A long and varied history

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

    213 - A long and varied history The series on the Training and Technology program at Y-12 has been completed, and I certainly do appreciate all the input received on that historic program at Y-12. We have even compared that program to our current Apprenticeship program and noted some similarities, and again I appreciate all the input provided by the Apprenticeship Committee, the instructors and the apprentices. I would like to return generally to the chronological history of Y-12 and bring that

  1. Rhapsody: I. Structural Properties and Formation History from a Statistical

    Office of Scientific and Technical Information (OSTI)

    Sample of Re-simulated Cluster-size Halos (Journal Article) | SciTech Connect Rhapsody: I. Structural Properties and Formation History from a Statistical Sample of Re-simulated Cluster-size Halos Citation Details In-Document Search Title: Rhapsody: I. Structural Properties and Formation History from a Statistical Sample of Re-simulated Cluster-size Halos Authors: Wu, Hao-Yi ; /KIPAC, Menlo Park /SLAC /Michigan U. ; Hahn, Oliver ; Wechsler, Risa H. ; Mao, Yao-Yuan ; Behroozi, Peter S. ;

  2. The History of Nuclear Energy | Department of Energy

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

    History of Nuclear Energy The History of Nuclear Energy Although they are tiny, atoms have a large amount of energy holding their nuclei together. Certain isotopes of some elements can be split and will release part of their energy as heat. This splitting is called fission. The heat released in fission can be used to help generate electricity in powerplants. Uranium-235 (U-235) is one of the isotopes that fissions easily. During fission, U-235 atoms absorb loose neutrons. This causes U-235 to

  3. DOE - Fossil Energy: A Brief History of Natural Gas

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

    History An Energy Lesson Natural Gas - Fueling the Blue Flame The History of Natural Gas Gaslight - One of the earliest uses of natural gas was to fuel street lights in the 1800s. - The ancient "eternal fires" in the area of present day Iraq that were reported in Plutarch's writings around 100 to 125 A.D. probably were from natural gas escaping from cracks in the ground and ignited by lightning. In 1821 in Fredonia, New York, William A. Hart drilled a 27 foot deep well in an effort to

  4. Cosmic expansion histories in massive bigravity with symmetric matter coupling

    SciTech Connect (OSTI)

    Enander, Jonas; Mrtsell, Edvard [Oskar Klein Center, Stockholm University, Albanova University Center, 106 91 Stockholm (Sweden); Solomon, Adam R. [DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Rd., Cambridge CB3 0WA (United Kingdom); Akrami, Yashar, E-mail: enander@fysik.su.se, E-mail: a.r.solomon@damtp.cam.ac.uk, E-mail: yashar.akrami@astro.uio.no, E-mail: edvard@fysik.su.se [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo (Norway)

    2015-01-01

    We study the cosmic expansion history of massive bigravity with a viable matter coupling which treats both metrics on equal footing. We derive the Friedmann equation for the effective metric through which matter couples to the two metrics, and study its solutions. For certain parameter choices, the background cosmology is identical to that of ?CDM. More general parameters yield dynamical dark energy, which can still be in agreement with observations of the expansion history. We study specific parameter choices of interest, including minimal models, maximally-symmetric models, and a candidate partially-massless theory.

  5. We the Geeks: Celebrating Black History Month | Department of Energy

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

    the Geeks: Celebrating Black History Month We the Geeks: Celebrating Black History Month February 24, 2014 - 9:40am Addthis President Barack Obama talks with Evan Jackson, 10, Alec Jackson, 8, and Caleb Robinson, 8, from McDonough, Ga., while looking at exhibits at the White House Science Fair in the State Dining Room, April 22, 2013. The sports-loving grade-schoolers created a new product concept to keep athletes cool and helps players maintain safe body temperatures on the field. | Official

  6. Tribal Energy Project Funding History | Department of Energy

    Energy Savers [EERE]

    Funding History Tribal Energy Project Funding History The U.S. Department of Energy (DOE) funds a wide variety of renewable energy and energy efficiency projects in an effort to assist tribes in realizing their energy visions. From 2002 to 2014, DOE awarded a total of $48.1 million to fund 183 tribal energy projects. During that same period, tribes contributed a total of $45.6 million in cost sharing to advance their energy projects. (Note: Per statute only development and deployment type awards

  7. The History of the Electric Car | Department of Energy

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

    the Electric Car The History of the Electric Car September 15, 2014 - 10:48am Addthis Rebecca Matulka Rebecca Matulka Former Digital Communications Specialist, Office of Public Affairs What's the Difference? A hybrid electric vehicle (or HEV for short) is a vehicle without the capacity to plug in but has an electric drive system and battery. It's driving energy comes only from liquid fuel. Learn about the history of the hybrid -- from the world's first one to the world's best selling one. A

  8. The History of the Light Bulb | Department of Energy

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

    the Light Bulb The History of the Light Bulb November 22, 2013 - 1:00pm Addthis Read more about the History of the Light Bulb. Rebecca Matulka Rebecca Matulka Former Digital Communications Specialist, Office of Public Affairs Daniel Wood Daniel Wood Data Visualization and Cartographic Specialist, Office of Public Affairs What are the key facts? Like all great inventions, the light bulb can't be credited to one inventor. It was a series of small improvements on the ideas of previous inventors

  9. LICENSE HISTORY MO.8 Petrolite Corporation, St. Louis

    Office of Legacy Management (LM)

    LICENSE HISTORY MO.8 Petrolite Corporation, St. Louis 07,16/93 l See attached Document and Pile Sumnary for MO.8 l License History: l 24-10452-01, 30-051175, 08/13/79. Loose H-3, I-131, P-32. l 24-10452-1, 10/30/64. K66 R. R. Annand et al Multiple. . 70-621, 12-15-61, SNM license for 0.5 kg. of U-235, 93% enriched as a fuel loading and star-up ~curce for Webster Groves, Missouri reactor. l Discussion: Historical documents for this site are limited. The only information available on work done

  10. Pyroelectric-field driven defects diffusion along c-axis in ZnO nanobelts under high-energy electron beam irradiation

    SciTech Connect (OSTI)

    Ding, Yong Liu, Ying; Niu, Simiao; Wu, Wenzhuo; Wang, Zhong Lin

    2014-10-21

    When ZnO nanobelts are exposed to a high-dose electron probe of several nanometers to hundred nanometers in diameter inside a transmission electron microscope, due to the radiolysis effect, part of oxygen atoms will be ejected into the vacuum and leaving a Zn-ion rich surface with a pit appearance at both the electron-entrance and electron-exit surfaces. At the same time, a temperature distribution is created around the electron probe due to local beam heating effect, which generates a unidirectional pyroelectric field. This pyroelectric field is strong enough to drive Zn ions moving along its positive c-axis direction as interstitial ions. In the first case, for the ZnO nanobelts with c-axis lie in their large surfaces, defects due to the aggregation of Zn interstitial ions will be formed at some distances of 3050 nm approximately along the c-axis direction from the electron beam illuminated area. Alternatively, for the ZnO nanobelts with (0001) planes as their large surfaces, the incident electron beam is along its c-axis and the generated pyroelectric field will drive the interstitial Zn-ions to aggregate at the Zn terminated (0001) surface where the local electrical potential is the lowest. Such electron beam induced damage in ZnO nanostructures is suggested as a result of Zn ion diffusion driven by the temperature gradient induced pyroelectric field along c-axis. Our study shows a radiation damage caused by electron beam in transmission electron microscopy, especially when the electron energy is high.

  11. Fehner and Holl, Department of Energy, 1977-1994: A Summary History |

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

    Department of Energy Holl, Department of Energy, 1977-1994: A Summary History Fehner and Holl, Department of Energy, 1977-1994: A Summary History Terrence R. Fehner and Jack M. Holl. Department of Energy, 1977-1994: A Summary History. DOE/HR-0098. Washington, D.C.: Department of Energy, 1994. 142 pp. History Office publication. PDF icon Summary_History.pdf More Documents & Publications Department of Energy, 1977-1994, A Summary History A History of the Southeastern Power Administration

  12. A Chronological History of Federal Fleet Actions and Mandates

    SciTech Connect (OSTI)

    2011-04-22

    This chronological history of Federal fleet actions and mandates provides a year-by-year timeline of the acts, amendments, executive orders, and other regulations that affect Federal fleets. The fleet actions and mandates included in the timeline span from 1988 to 2009.

  13. Chronological History of Federal Fleet Actions and Mandates (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2011-04-01

    This chronological history of Federal fleet actions and mandates provides a year-by-year timeline of the acts, amendments, executive orders, and other regulations that affect Federal fleets. The fleet actions and mandates included in the timeline span from 1988 to 2009.

  14. A quantitative method for measuring the quality of history matches

    SciTech Connect (OSTI)

    Shaw, T.S.; Knapp, R.M.

    1997-08-01

    History matching can be an efficient tool for reservoir characterization. A {open_quotes}good{close_quotes} history matching job can generate reliable reservoir parameters. However, reservoir engineers are often frustrated when they try to select a {open_quotes}better{close_quotes} match from a series of history matching runs. Without a quantitative measurement, it is always difficult to tell the difference between a {open_quotes}good{close_quotes} and a {open_quotes}better{close_quotes} matches. For this reason, we need a quantitative method for testing the quality of matches. This paper presents a method for such a purpose. The method uses three statistical indices to (1) test shape conformity, (2) examine bias errors, and (3) measure magnitude of deviation. The shape conformity test insures that the shape of a simulated curve matches that of a historical curve. Examining bias errors assures that model reservoir parameters have been calibrated to that of a real reservoir. Measuring the magnitude of deviation assures that the difference between the model and the real reservoir parameters is minimized. The method was first tested on a hypothetical model and then applied to published field studies. The results showed that the method can efficiently measure the quality of matches. It also showed that the method can serve as a diagnostic tool for calibrating reservoir parameters during history matching.

  15. Chronological History of Federal Energy-Efficient Product

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

    Chronological History of Federal Energy-Efficient Product Procurement: Executive, Legislative and Regulatory Requirements, Actions and Mandates Introduction The National Energy Conservation Policy Act (NECPA), signed into law in 1978, is the foundational authority for federal energy management requirements. Various legislative actions and Executive Orders (EOs) have developed purchasing requirements that encompass all areas of federal procurement. Federal agencies have been required to purchase

  16. Alternative Fuels Data Center: Minneapolis Makes EV-Charging History Record

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Minneapolis Makes EV-Charging History Record to someone by E-mail Share Alternative Fuels Data Center: Minneapolis Makes EV-Charging History Record on Facebook Tweet about Alternative Fuels Data Center: Minneapolis Makes EV-Charging History Record on Twitter Bookmark Alternative Fuels Data Center: Minneapolis Makes EV-Charging History Record on Google Bookmark Alternative Fuels Data Center: Minneapolis Makes EV-Charging History Record on Delicious Rank Alternative Fuels Data Center: Minneapolis

  17. Optomechanical design of a prompt gamma reaction history diagnostic

    SciTech Connect (OSTI)

    Hermann, Hans W; Kaufman, Morris I; Malone, Robert M; Frogget, Brent C; Tunnell, Thomas W; Cox, Brian; Frayer, Daniel K; Ali, Zaheer; Stoeffl, Wolfgang

    2009-01-01

    The National Ignition Facility and the Omega Laser Facility both have a need for measuring prompt gamma radiation as part of a nuclear diagnostic program. A new gamma-detection diagnostic using off-axis-parabolic mirrors has been built. Some new techniques were used in the design, construction, and tolerancing of this gamma ray diagnostic. Because of the wavelength requirement (250-700 nm), the optical element surface finishes were a key design consideration. The optical enclosure had to satisfy pressure safety concerns and shielding against electromagnetic interference induced by gammas and neutrons. Structural finite element analysis was needed to meet rigorous optical and safety requirements. The optomechanical design is presented. Alignment issues are also discussed.

  18. Magnetic rotation (MR) band crossing in N=78 odd-Z nuclei: Tilted axis cranking (TAC) calculations to explore the role of nucleons

    SciTech Connect (OSTI)

    Kumar, Suresh

    2014-08-14

    Magnetic Rotation (MR) band crossing is studied systematically in N=78 isotones (La, Pr, Pm and Eu) using Tilted Axis Cranking (TAC) model. The observables such as I(h) vs h?, excitation energy E(MeV) vs spin I(h), and the B(M1)/B(E2) vs I(h) were considered to pinpoint MR crossing in these nuclei. The results of tilted axis cranking were compared with these experimental observables. The B(M1) and B(E2) values were also reported and used to understand the crossing behaviour of these MR bands. The systematic evolution of this phenomenon in N=78 odd-Z istotones leads to understand the role of nucleons in MR band crossing.

  19. A history of the Building Energy Standards Program

    SciTech Connect (OSTI)

    Shankle, D.L.; Merrick, J.A.; Gilbride, T.L.

    1994-02-01

    This report describes the history of the Pacific Northwest Laboratory`s (PNL`s) work in development of energy standards for commercial and residential construction in the United States. PNL`s standards development efforts are concentrated in the Building Energy Standards Program (the Program), which PNL conducts for the U.S. Department of Energy (DOE) Office of Codes and Standards. The Program has worked with DOE, the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE), and other building codes and standards organizations to develop, evaluate, and promulgate energy standards in all sectors of the building industry. This report describes the recent history of U.S. code development and PNL`s contributions through the 1980s and early 1990s, up to the passage of the Energy Policy Act of 1992. Impacts to standards development resulting from the passage of this act will be described in other reports.

  20. Magnetization reversal induced by in-plane current in Ta/CoFeB/MgO structures with perpendicular magnetic easy axis

    SciTech Connect (OSTI)

    Zhang, C.; Yamanouchi, M. Ikeda, S.; Sato, H.; Fukami, S.; Matsukura, F.; Ohno, H.

    2014-05-07

    We investigate in-plane current-induced magnetization reversal under an in-plane magnetic field in Hall bar shaped devices composed of Ta/CoFeB/MgO structures with perpendicular magnetic easy axis. The observed relationship between the directions of current and magnetization switching and Ta thickness dependence of magnetization switching current are accordance with those for magnetization reversal by spin transfer torque originated from the spin Hall effect in the Ta layer.

  1. Influence of compensator thickness, field size, and off-axis distance on the effective attenuation coefficient of a cerrobend compensator for intensity-modulated radiation therapy

    SciTech Connect (OSTI)

    Haghparast, Abbas; Hashemi, Bijan; Eivazi, Mohammad Taghi

    2013-04-01

    Intensity-modulated radiation therapy (IMRT) can be performed by using compensators. To make a compensator for an IMRT practice, it is required to calculate the effective attenuation coefficient (?{sub eff}) of its material, which is affected by various factors. We studied the effect of the variation of the most important factors on the calculation of the ?{sub eff} of the cerrobend compensator for 6-MV photon beams, including the field size, compensator thickness, and off-axis distance. Experimental measurements were carried out at 100 cm source-to-surface distance and 10 cm depth for the 6-MV photon beams of an Elekta linac using various field size, compensator thickness, and off-axis settings. The field sizes investigated ranged from 4 4 to 25 25 cm{sup 2} and the cerrobend compensator thicknesses from 0.56 cm. For a fixed compensator thickness, variation of the ?{sub eff} with the field size ranged from 3.76.8%, with the highest value attributed to the largest compensator thickness. At the reference field size of 10 10 cm{sup 2}, the ?{sub eff} varied by 16.5% when the compensator thickness was increased from 0.56 cm. However, the variation of the ?{sub eff} with the off-axis distance was only 0.99% at this field size, whereas for the largest field size, it was more significant. Our results indicated that the compensator thickness and field size have the most significant effect on the calculation of the compensator ?{sub eff} for the 6-MV photon beam. Therefore, it is recommended to consider these parameters when calculating the compensator thickness for an IMRT practice designed for these beams. The off-axis distance had a significant effect on the calculation of the ?{sub eff} only for the largest field size. Hence, it is recommended to consider the effect of this parameter only for field sizes larger than 25 25 cm{sup 2}.

  2. A 15 Year History of Growth and Development

    Office of Scientific and Technical Information (OSTI)

    DOE R&D Accomplishments A 15 Year History of Growth and Development Introduction The DOE R&D Accomplishments website was developed to improve the visibility of DOE accomplishments by broadening and integrating access to important advances made possible by past DOE/predecessor research and development. It showcases the proud heritage of the Department's research and development and highlights benefits that are being realized now. Selection of electronic documents and Web page content is

  3. Machine learning helps discover the most luminous supernova in history

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

    Machine learning helps discover supernova Machine learning helps discover the most luminous supernova in history Machine-learning technology developed at Los Alamos National Laboratory played a key role in the discovery of supernova ASASSN-15lh. January 14, 2016 An artist's impression of the record-breaking superluminous supernova ASASSN-15lh as it would appear from an exoplanet located about 10,000 light years away in the host galaxy of the supernova. (Credit: Beijing Planetarium / Jin Ma) An

  4. COLLOQUIUM: History, Applications, Numerical Values and Problems with the

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

    Calculation of EROI - Energy Return on (Energy) Investment | Princeton Plasma Physics Lab March 2, 2016, 4:15pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: History, Applications, Numerical Values and Problems with the Calculation of EROI - Energy Return on (Energy) Investment Professor Charles Hall State University of NY College of Environmental Science and Forestry Plants and animals are subjected to fierce selective pressure to do the "right thing" energetically, that is to

  5. History of the Stanford Synchrotron Radiation Lightsource | Stanford

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

    Synchrotron Radiation Lightsource History of the Stanford Synchrotron Radiation Lightsource SPEAR Based on new applications of synchrotron radiation, SSRL began in 1973 as the Stanford Synchrotron Radiation Project (SSRP). The first synchrotron scientific user activities were originally attached to the SPEAR ring and were operated in "parasitic mode" on the SPEAR high-energy physics program. SSRL/SSRP was the first multi-GeV storage ring based synchrotron radiation source in the

  6. Volttron (TM) 0 to 3.0 History

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

    598 VOLTTRON(tm) 0 to 3.0 History JEREME HAACK Pacific Northwest National Laboratory Software Framework for Transactive Energy: VOLTTRON(tm), VTARI, Arlington, VA July 29, 2015 1 VOLTTRON Team July 29, 2015 2 VOLTTRON Team Software Development Team Srinivas Katipamula Bora Akyol Jereme Haack Brandon Carpenter Kyle Monson Craig Allwardt Poorva Sharma Tim Kang Casey Neubauer Robert Lutes Dan Johnson July 29, 2015 3 Application Development Team Srinivas Katipamula Robert Lutes Wooyun Kim Rick Pratt

  7. ARM - History and Status of the ARM Program

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

    ARMHistory and Status of the ARM Program About Become a User Recovery Act Mission FAQ Outreach Displays History Organization Participants Facility Statistics Forms Contacts Facility Documents ARM Management Plan (PDF, 1.3MB) Field Campaign Guidelines (PDF, 574KB) ARM Climate Research Facility Expansion Workshop (PDF, 1.46MB) Facility Activities ARM and the Recovery Act Contributions to International Polar Year Comments? We would love to hear from you! Send us a note below or call us at

  8. Site A Plot M History Fact Sheet.indd

    Office of Legacy Management (LM)

    Site A/Plot M, Illinois, Decommissioned Reactor Site History Defending our nation during World War II meant that many sacrifi ces would need to be made. In addition to the sacrifi ces made by the American people, natural resource areas were also yielded to support defense activities. A portion of the Palos Forest Preserve outside of Chicago, Illinois, was one of those areas. The land would be changed to accommodate experimental laboratories, nuclear reactor research, and radioactive waste

  9. History of the Strategic Petroleum Reserve | Department of Energy

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

    the Strategic Petroleum Reserve History of the Strategic Petroleum Reserve July 1, 2015 - 11:34am Addthis Allison Lantero Allison Lantero Digital Content Specialist, Office of Public Affairs The Strategic Petroleum Reserve, or SPR, is a complex of four locations that stockpile emergency oil in deep underground storage caverns created in salt domes along the Texas and Louisiana Gulf Coasts. Although the idea of stockpiling emergency oil arose as early as 1944, it took the oil embargo of 1973-74

  10. SAVANNAH RIVER PLANT I FABRICATION AND TESTING HISTORY

    Office of Legacy Management (LM)

    SAVANNAH RIVER PLANT I FABRICATION AND TESTING HISTORY i PROTOTYPE AND PRODUCTION UNITS I NEW YORK SHIPBUILDING CORPORATION Camden, New Jersey Subcontractor For ENGINEERING DEPARTMENT E. I. DU PONT DE NEMOURS & CO. (INC.) Wilmington, Delaware Prime Contractor For UCL ? i UNITED STATES ATOMIC ENERGY COMMISSION / I U. S. CONTRACT NO. AT(07-21-l DU PONT PROJECT NO. 8980 SUBCONTRACT NO. AXC-167-l/2 September, 1954 DPE - $37 mment consists of tricted Data as defined SECRET SAVANNAH RIVER PLANT

  11. Can f(T) gravity theories mimic ?CDM cosmic history

    SciTech Connect (OSTI)

    Setare, M.R.; Mohammadipour, N. E-mail: N.Mohammadipour@uok.ac.ir

    2013-01-01

    Recently the teleparallel Lagrangian density described by the torsion scalar T has been extended to a function of T. The f(T) modified teleparallel gravity has been proposed as the natural gravitational alternative for dark energy to explain the late time acceleration of the universe. In order to reconstruct the function f(T) by demanding a background ?CDM cosmology we assume that, (i) the background cosmic history provided by the flat ?CDM (the radiation ere with ?{sub eff} = (1/3), matter and de Sitter eras with ?{sub eff} = 0 and ?{sub eff} = ?1, respectively) (ii) the radiation dominate in the radiation era with ?{sub 0r} = 1 and the matter dominate during the matter phases when ?{sub 0m} = 1. We find the cosmological dynamical system which can obey the ?CDM cosmic history. In each era, we find a critical lines that, the radiation dominated and the matter dominated are one points of them in the radiation and matter phases, respectively. Also, we drive the cosmologically viability condition for these models. We investigate the stability condition with respect to the homogeneous scalar perturbations in each era and we obtain the stability conditions for the fixed points in each eras. Finally, we reconstruct the function f(T) which mimics cosmic expansion history.

  12. A Case History of Injection Through 1991 at Dixie Valley, Nevada...

    Open Energy Info (EERE)

    History of Injection Through 1991 at Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: A Case History of Injection Through...

  13. West Valley Site History, Cleanup Status, and Role of the West...

    Office of Environmental Management (EM)

    Site History, Cleanup Status, and Role of the West Valley Citizen Task Force West Valley Site History, Cleanup Status, and Role of the West Valley Citizen Task Force Presentation...

  14. Evolution and History of the Department of Energy and the Office of Environmental Management

    Broader source: Energy.gov [DOE]

    An overview of the Evolution and History of the Department of Energy and the Office of Environmental Management.

  15. Germantown Site History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    History » Germantown Site History Basic Energy Sciences (BES) BES Home About Organization Chart .pdf file (47KB) Staff BES Budget BES Committees of Visitors Directions Jobs Organizational History Germantown Natural History President Kennedy's AEC Briefings Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building

  16. History of the Energy Department's Role in Nuclear Security | Department of

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

    Energy Energy Department's Role in Nuclear Security History of the Energy Department's Role in Nuclear Security

  17. Department of Energy 1977--1994: A summary history

    SciTech Connect (OSTI)

    Fehner, T.R.; Holl, J.M.

    1994-11-01

    The Department of Energy Organization Act of 1977 created perhaps the most interesting and diverse agency in the Federal Government. The new department brought together for the first time not only most of the government`s energy programs but also defense responsibilities that included the design, construction, and testing of nuclear weapons. The Department of Energy incorporated a score of organizational entities from a dozen departments and agencies, each with its own history and traditions. Uniting these seemingly disparate entities and programs was a common commitment to performing first rate science and technology. The Department of Energy sought--and continues to seek--to be one of the Nation`s premier science and technology organizations. The Department of Energy, 1977--1994, is a summary history of the origins, goals, and achievements of the Department and selected major programs. Beginning with the various fuels policies on the energy side and the Manhattan project on the defense side, the study details how the Department was born of the energy crisis of the early and mid-1970s. The history then surveys the Department and its programs from the Carter through the Clinton administrations. As the energy crisis eased, the Department played a central role on issues as dissimilar as the Strategic Defense Initiative and the Superconducting Super Collider. With the end of the Cold War, the Department of Energy further transformed itself, moving from the building of bombs to partial dismantlement of the nuclear weapons complex and to an increased emphasis on environmental activities and technology transfer efforts.

  18. Department of Energy 1977--1994: A Summary History

    DOE R&D Accomplishments [OSTI]

    Fehner, T. R.; Holl, J. M.

    1994-11-00

    The Department of Energy Organization Act of 1977 created perhaps the most interesting and diverse agency in the Federal Government. The new department brought together for the first time not only most of the government`s energy programs but also defense responsibilities that included the design, construction, and testing of nuclear weapons. The Department of Energy incorporated a score of organizational entities from a dozen departments and agencies, each with its own history and traditions. Uniting these seemingly disparate entities and programs was a common commitment to performing first rate science and technology. The Department of Energy sought--and continues to seek--to be one of the Nation`s premier science and technology organizations. The Department of Energy, 1977--1994, is a summary history of the origins, goals, and achievements of the Department and selected major programs. Beginning with the various fuels policies on the energy side and the Manhattan project on the defense side, the study details how the Department was born of the energy crisis of the early and mid-1970s. The history then surveys the Department and its programs from the Carter through the Clinton administrations. As the energy crisis eased, the Department played a central role on issues as dissimilar as the Strategic Defense Initiative and the Superconducting Super Collider. With the end of the Cold War, the Department of Energy further transformed itself, moving from the building of bombs to partial dismantlement of the nuclear weapons complex and to an increased emphasis on environmental activities and technology transfer efforts.

  19. A History of Building 828, Sandia National Laboratories

    SciTech Connect (OSTI)

    Ullrich, Rebecca

    1999-08-01

    This report documents the history of Building 828 in Sandia National Laboratories' Technical Area I. Building 828 was constructed in 1946 as a mechanical test laboratory for Los Alamos' Z-Division (later Sandia) as it moved to Sandia Base. The building has undergone significant remodeling over the years and has had a variety of occupants. The building was evaluated in compliance with the National Historic Preservation Act, but was not eligible for the National Register of Historic Places. Nevertheless, for many Labs employees, it was a symbol of Sandia's roots in World War II and the Manhattan Project.

  20. History of Sandia National Laboratories` auxiliary closure mechanisms

    SciTech Connect (OSTI)

    Weydert, J.C.; Ponder, G.M.

    1993-12-01

    An essential component of a horizontal, underground nuclear test setup at the Nevada Test Site is the auxiliary closure system. The massive gates that slam shut immediately after a device has been detonated allow the prompt radiation to pass, but block debris and hot gases from continuing down the tunnel. Thus, the gates protect experiments located in the horizontal line-of-sight steel pipe. Sandia National Laboratories has been the major designer and developer of these closure systems. This report records the history of SNL`s participation in and contributions to the technology of auxiliary closure systems used in horizontal tunnel tests in the underground test program.

  1. History of the Energy Research and Development Administration

    SciTech Connect (OSTI)

    Buck, A.L.

    1982-03-01

    Congress created the Energy Research and Development Administration on October 11, 1974 in response to the Nation's growing need for additional sources of energy. The new agency would coordinate energy programs formerly scattered among many federal agencies, and serve as the focus point for a major effort by the Federal Government to expand energy research and development efforts. New ways to conserve existing supplies as well as the commercial demonstration of new technologies would hopefully be the fruit of the Government's first significant effort to amalgamate energy resource development programs. This history briefly summarizes the accomplishments of the agency.

  2. COLLOQUIUM: Inherently Risky Designs? The History of Soviet Nuclear

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

    Reactors and the Notion of Safety | Princeton Plasma Physics Lab April 13, 2016, 4:15pm to 5:30pm Colloquia MBG Auditorium, PPPL COLLOQUIUM: Inherently Risky Designs? The History of Soviet Nuclear Reactors and the Notion of Safety Professor Sonja Schmid Virginia Tech Colloquium Committee: The Princeton Plasma Physics Laboratory 2015-2016 Colloquium Committee is comprised of the following people. Please feel free to contact them by e-mail regarding any possible speakers or topics for future

  3. A History of the Energy Research and Development Administration [ERDA

    DOE R&D Accomplishments [OSTI]

    Buck, Alice L.

    1982-03-01

    Congress created the Energy Research and Development Administration on October 11, 1974 in response to the Nation's growing need for additional sources of energy. The new agency would coordinate energy programs formerly scattered among many federal agencies, and serve as the focus point for a major effort by the Federal Government to expand energy research and development efforts. New ways to conserve existing supplies as well as the commercial demonstration of new technologies would hopefully be the fruit of the Government's first significant effort to amalgamate energy resource development programs. This history briefly summarizes the accomplishments of the agency.

  4. Site A Plot M History Timeline.indd

    Office of Legacy Management (LM)

    40s 1950s 1960s 1970s 1980s 1990s 2000s 1940s 1950s 1960s 1970s 1980s 1990s 2000s F A C T S H E E T Site A/Plot M, Illinois, Decommissioned Reactor Site History Timeline 1944 Plot M is established near Site A for the disposal of waste (both radioactive and non-radioactive) from Manhattan Project research activities. The laboratory- waste disposal procedure is to bury the waste in trenches and cover the trenches with soil. CP-3 begins operating at Site A. 1947 The U.S. Atomic Energy Commission

  5. The History of Nuclear Power in Space | Department of Energy

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

    Nuclear Power in Space The History of Nuclear Power in Space June 9, 2015 - 11:42am Addthis Marissa Newhall Marissa Newhall Director of Digital Strategy & Communications How can I participate? It's Space Week on Energy.gov -- and we're highlighting the contributions of the Energy Department and our National Labs to the U.S. space program. Join us for "The Energy of Star Wars: A Google+ Hangout" on Friday June 12 at 2 p.m. EDT. Ask questions now and during the Hangout on social

  6. Microsoft PowerPoint - Hentschel_KCD Proj's Impact Fed Power_2015 SWPA Hyd Meeting.pptx [Read-Only]

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

    Hentschel, P.E. Chief, Maintenance Engineering Section Operations Division Kansas City District 18 June 2015 Projects Impacting Federal Power Kansas City District 2015 Southwestern Federal Hydropower Meeting Branson, MO BUILDING STRONG ® Stockton Water Supply Reallocation  Contract currently in place with City Utilities of Springfield (CUS) for 50,000 ac-ft of storage between elevations 830 and 867 msl (normal pool)  Water Supply Reallocation Study Activities ► Purpose of study is to

  7. Microsoft PowerPoint - KCD Proj's Impact Fed Power_2014 SWPA Hyd Meeting (13 Jun 2014) [Compatibility Mode]

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

    2014 So th estern Federal H dropo er Meeting 2014 Southwestern Federal Hydropower Meeting Tulsa, OK Pete Hentschel, P.E. Chief, Maintenance Engineering Section Operations Division Kansas City District 19 June 2014 US Army Corps of Engineers BUILDING STRONG ® Stockton Water Supply Reallocation  Contract established with City Utilities of Springfield (CUS) in Oct 1993 for 50,000 ac-ft of storage between elevations 830 and 867 msl. CUS is making payments on the total storage allocation.  Tri

  8. Microsoft PowerPoint - KCD Proj's Impact Fed Power_SWPA Conf (14 Jun 2012) [Compatibility Mode]

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

    Ci Di i Kansas City District Southwestern Federal Hydropower Conference Hot Springs, AR Pete Hentschel, P.E. Chief, Maintenance Engineering Section Chief, Maintenance Engineering Section Kansas City District 14 June 2012 US Army Corps of Engineers BUILDING STRONG ® Stockton Water Supply Reallocation  Contract established with City Utilities of Springfield (CUS) on Oct 1993 for 50,000 ac-ft of storage between elevations 830 and 867 msl. msl.  CUS has began payments on their 2nd half of

  9. Microsoft PowerPoint - KCD Proj's Impact Fed Power_SWPA Conf (5 Jun 2010).ppt [Compatibility Mode]

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

    Southwestern Federal Hydropower Conference Branson, MO Pete Hentschel Chief, Maintenance Engineering Section , C e , a te a ce g ee g Sect o Kansas City District 10 June 2010 US Army Corps of Engineers BUILDING STRONG ® Stockton Water Supply Reallocation Stockton Water Supply Reallocation Nothing new to report. g p City Utilities of Springfield (CUS) has 50,000 ac-ft of municipal allocation for water supply. CUS is only using one-half (25,000 ac-ft) of their allocation. Tri-State Water District

  10. Microsoft PowerPoint - Pete H's 2007 SWPA Conf Pres(NWK Proj's Impact Fed Power).ppt

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

    AmerenUE, Bagnell Dam FERC Re-licensing Impacts at Harry S. Truman AmerenUE, Bagnell Dam FERC Re-licensing Impacts at Harry S. Truman * FERC recommended AmerenUE initiate discussions with Kansas City District on revising the existing MOA for releases from Truman. * The new FERC license recommended ramp down rates for flood control releases to help prevent bank erosion. * Kansas City District staff met with AmerenUE in late Feb. 2007. * It was explained to AmerenUE that any significant changes to

  11. Microsoft PowerPoint - Pete H's 2008 SWPA Conf Pres(NWK Proj's Impact Fed Power).ppt

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

    PROJECTS IMPACTING FEDERAL POWER KANSAS CITY DISTRICT * AmerenUE's (Bagnell Dam) FERC Re-licensing Impacts, Harry S. Truman Project * Draft Tube Bulkheads and Cylinder Hoists Repair Project, Harry S. Truman Power Plant * Water Supply Storage Reallocation, Stockton Project AmerenUE (Bagnell Dam) FERC Re-licensing Impacts at Harry S. Truman Project * Article 409 of the new FERC license recommended that AmerenUE enter into consultation with the Corps concerning ramp down rates at Truman to help

  12. Geothermal regime and thermal history of the Llanos Basin, Columbia

    SciTech Connect (OSTI)

    Bachu, S.; Underschultz, J.R.; Ramon, J.C.; Villegas, M.E.

    1995-01-01

    The Llanos basin is a siliciclastic foreland sub-Andean sedimentary basin located in Columbia between the Cordillera Oriental and the Guyana Precambrian shield. Data on bottom-hole temperature, lithology, porosity, and vitrinite reflectance from all 318 wells drilled in the central and southern parts of the basin were used to analyze its geothermal regime and thermal history. Average geothermal gradients in the Llanos basin decrease generally with depth and westward toward the fold and thrust belt. The geothermal regime is controlled by a moderate, generally westward-decreasing basement heat flow, by depositional and compaction factors, and, in places, by advection by formation waters. Compaction leads to increased thermal conductivity with depth, whereas westward downdip flow in deep sandstone formations may exert a cooling effect in the central-western part of the basin. Vitrinite reflectance variation with depth shows a major discontinuity at the pre-Cretaceous unconformity. Areally, vitrinite reflectance increases southwestward in Paleozoic strata and northwestward in post-Paleozoic strata. These patterns indicate that the thermal history of the basin probably includes three thermal events that led to peaks in oil generation: a Paleozoic event in the southwest, a failed Cretaceous rifting event in the west, and an early Tertiary back-arc event in the west. Rapid cooling since the last thermal event is possibly caused by subhorizontal subduction of cold oceanic lithospheric plate.

  13. The Science of Optics; The History of Art

    ScienceCinema (OSTI)

    Falco, Charles [University of Arizona, Tuscon, Arizona, United States

    2009-09-01

    Recently, renowned artist David Hockney observed that certain drawings and paintings from as early as the Renaissance seemed almost 'photographic' in detail. Following an extensive visual investigation of western art of the past 1000 years, he made the revolutionary claim that artists even of the prominence of van Eyck and Bellini must have used optical aids. However, many art historians insisted there was no supporting evidence for such a remarkable assertion. In this talk I show a wealth of optical evidence for his claim that Hockney and I subsequently discovered during an unusual, and remarkably-productive, collaboration between an artist and a scientist. I also discuss the unique properties of the 'mirror lens,' and some of the implications this work has for the history of science as well as the history of art (and the modern fields of machine vision and computerized image analysis). These discoveries convincingly demonstrate optical instruments were in use - by artists, not scientists - nearly 200 years earlier than previously even thought possible, and account for the remarkable transformation in the reality of portraits that occurred early in the 15th century.

  14. Department of Energy, 1977-1994, A Summary History | Department of Energy

    Energy Savers [EERE]

    Energy, 1977-1994, A Summary History Department of Energy, 1977-1994, A Summary History history fo the Department of Energy PDF icon Department of Energy, 1977-1994, A Summary History More Documents & Publications Fehner and Holl, Department of Energy, 1977-1994: A Summary History RFA-14-0001 - In the Matter of Commonwealth Oil Refining Company, Inc./Commonwealth of Puerto Rico Colorado Environmental Coalition v. Office of Legacy Management, Civil Action No. 08-cv-01624 (October 18, 20

  15. Highly c-axis oriented GaN films grown on free-standing diamond substrates for high-power devices

    SciTech Connect (OSTI)

    Zhang, D. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China) [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024 (China); Bian, J.M., E-mail: jmbian@dlut.edu.cn [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Qin, F.W.; Wang, J.; Pan, L. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China) [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024 (China); Zhao, J.M. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)] [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Zhao, Y.; Bai, Y.Z. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China) [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Ministry of Education, Dalian University of Technology, Dalian 116024 (China); Du, G.T. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)] [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

    2011-10-15

    Highlights: {yields} GaN films are deposited on diamond substrates by ECR-PEMOCVD. {yields} Influence of deposition temperature on the properties of samples is investigated. {yields} Properties of GaN films are dependent on the deposition temperature. -- Abstract: GaN films with highly c-axis preferred orientation are deposited on free-standing thick diamond films by low temperature electron cyclotron resonance plasma enhanced metal organic chemical vapor deposition (ECR-PEMOCVD). The TMGa and N{sub 2} are applied as precursors of Ga and N, respectively. The quality of as-grown GaN films are systematically investigated as a function of deposition temperature by means of X-ray diffraction (XRD) analysis, Hall Effect measurement (HL), room temperature photoluminescence (PL) and atomic force microscopy (AFM). The results show that the dense and uniformed GaN films with highly c-axis preferred orientation are successfully achieved on free-standing diamond substrates under optimized deposition temperature of 400 {sup o}C, and the room temperature PL spectra of the optimized GaN film show a intense ultraviolet near band edge emission and a weak yellow luminescence. The obtained GaN/diamond structure has great potential for the development of high-power semiconductor devices due to its excellent heat dissipation nature.

  16. Epitaxial c-axis oriented BaTiO{sub 3} thin films on SrTiO{sub 3}-buffered Si(001) by atomic layer deposition

    SciTech Connect (OSTI)

    Ngo, Thong Q.; McDaniel, Martin D.; Ekerdt, John G., E-mail: ekerdt@che.utexas.edu [Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712 (United States); Posadas, Agham B.; Demkov, Alexander A. [Department of Physics, The University of Texas at Austin, Austin, Texas 78712 (United States); Hu, Chengqing; Yu, Edward T. [Department of Electrical Engineering, The University of Texas at Austin, Austin, Texas 78712 (United States); Bruley, John [IBM Research Division, Yorktown Heights, New York 10593 (United States)

    2014-02-24

    Atomic layer deposition (ALD) of epitaxial c-axis oriented BaTiO{sub 3} (BTO) on Si(001) using a thin (1.6?nm) buffer layer of SrTiO{sub 3} (STO) grown by molecular beam epitaxy is reported. The ALD growth of crystalline BTO films at 225??C used barium bis(triisopropylcyclopentadienyl), titanium tetraisopropoxide, and water as co-reactants. X-ray diffraction (XRD) reveals a high degree of crystallinity and c-axis orientation of as-deposited BTO films. Crystallinity is improved after vacuum annealing at 600??C. Two-dimensional XRD confirms the tetragonal structure and orientation of 720-nm thick films. The effect of the annealing process on the BTO structure is discussed. A clean STO/Si interface is found using in-situ X-ray photoelectron spectroscopy and confirmed by cross-sectional scanning transmission electron microscopy. The capacitance-voltage characteristics of 720?nm-thick BTO films are examined and show an effective dielectric constant of ?660 for the heterostructure.

  17. PUREX/UO{sub 3} facilities deactivation lessons learned history

    SciTech Connect (OSTI)

    Hamrick, D.G.; Gerber, M.S.

    1995-01-01

    The Plutonium-Uranium Extraction (PUREX) Facility operated from 1956-1972, from 1983-1988, and briefly during 1989-1990 to produce for national defense at the Hanford Site in Washington State. The Uranium Trioxide (UO{sub 3}) Facility operated at the Hanford Site from 1952-1972, 1984-1988, and briefly in 1993. Both plants were ordered to permanent shutdown by the U.S. Department of Energy (DOE) in December 1992, thus initiating their deactivation phase. Deactivation is that portion of a facility`s life cycle that occurs between operations and final decontamination and decommissioning (D&D). This document details the history of events, and the lessons learned, from the time of the PUREX Stabilization Campaign in 1989-1990, through the end of the first full fiscal year (FY) of the deactivation project (September 30, 1994).

  18. Case histories of external microbiologically influenced corrosion underneath disbonded coatings

    SciTech Connect (OSTI)

    Pikas, J.L.

    1996-08-01

    External microbiological influenced corrosion (MIC) underneath disbanded pipeline coating systems is a serious dilemma in the industry. In the past and even today, it has not been recognized as such because it has been primarily mistaken for galvanic corrosion. Due to the type of coating materials used in the past, the cleaning process or lack of it, and application methods used, all coating systems have the propensity to develop defects and pinholes where disbandment and this type of microbial corrosion could occur. In addition, the pipeline may or may not have had cathodic protection initially and/or consistently applied. Given these factors and the interaction of bacteria from the soil, moisture availability, and temperature of the pipeline, this paper will discuss the role that microbes play in the disbandment process, thus resulting in corrosion of an underground pipeline. Several case histories, laboratory results, and field findings will be presented.

  19. The Pahrump Valley Museum Yucca Mountain History Exhibit - 12389

    SciTech Connect (OSTI)

    Voegele, Michael; McCracken, Robert [Consultant, Nye County Nuclear Waste Repository Project Office (United States); Herrera, Troy [Sambooka Group, Reno, NV. (United States)

    2012-07-01

    As part of its management of the Yucca Mountain project, the Department of Energy maintained several information centers to provide public access to information about the status of the Yucca Mountain project. Those information centers contained numerous displays, historical information, and served as the location for the Department's outreach activities. As the Department of Energy dealt with reduced budgets in 2009 following the Obama Administration's intent to terminate the program, it shut down its information centers. Nye County considered it important to maintain a public information center where people would be able to find information about what was happening with the Yucca Mountain project. Initially the Nye County assumed responsibility for the information center in Pahrump; eventually the County made a decision to move that information center into an expansion of the existing Pahrump Valley Museum. Nye County undertook an effort to update the information about the Yucca Mountain project and modernize the displays. A parallel effort to create a source of historical information where people could find out about the Yucca Mountain project was undertaken. To accompany the Yucca Mountain exhibits in the Pahrump Valley Museum, Nye County also sponsored a series of interviews to document, through oral histories, as much information about the Yucca Mountain project as could be found in these interviews. The paper presents an overview of the Yucca Mountain exhibits in the Pahrump Valley Museum, and the accompanying oral histories. An important conclusion that can be drawn from the interviews is that construction of a repository in Nevada should have been conceptualized as but the first step in transforming the economy of central Nevada by turning part of the Nevada National Security Site and adjoining area into a world-class energy production and energy research center. (authors)

  20. UPPER BOUND ON THE FIRST STAR FORMATION HISTORY

    SciTech Connect (OSTI)

    Inoue, Yoshiyuki; Madejski, Grzegorz M.; Tanaka, Yasuyuki T.; Domnguez, Alberto

    2014-02-01

    Our understanding of the nature of the extragalactic background light (EBL) has improved with the recent development of gamma-ray observation techniques. An open subject in the context of the EBL is the reionization epoch, which is an important probe of the formation history of first stars, the so-called Population III (Pop III) stars. Although the mechanisms for the formation of PopIII stars are rather well understood on theoretical grounds, their formation history is still veiled in mystery because of their faintness. To shed light on this matter, we study jointly the gamma-ray opacity of distant objects and the reionization constraints from studies of intergalactic gas. By combining these studies, we obtain a sensitive upper bound on the PopIII star formation rate density of ?-dot {sub ?}(z)<0.01[(1+z)/(1+7.0)]{sup 3.4}(f{sub esc}/0.2){sup ?1}(C/3.0)M{sub ?}yr{sup ?1}Mpc{sup ?3} at z ? 7, where f {sub esc} and C are the escape fraction of ionizing photons from galaxies and the clumping factor of the intergalactic hydrogen gas. This limit is a ?10times tighter constraint compared with previous studies that take into account gamma-ray opacity constraints only. Even if we do not include the current gamma-ray constraints, the results do not change. This is because the detected gamma-ray sources are still at z ? 4.35 where the reionization has already finished.

  1. Understanding the unique assembly history of central group galaxies

    SciTech Connect (OSTI)

    Vulcani, Benedetta; Bundy, Kevin; Lackner, Claire; Leauthaud, Alexie; Treu, Tommaso; Mei, Simona; Coccato, Lodovico; Kneib, Jean Paul; Auger, Matthew; Nipoti, Carlo

    2014-12-10

    Central galaxies (CGs) in massive halos live in unique environments with formation histories closely linked to that of the host halo. In local clusters, they have larger sizes (R{sub e} ) and lower velocity dispersions (?) at fixed stellar mass M {sub *}, and much larger R{sub e} at a fixed ? than field and satellite galaxies (non-CGs). Using spectroscopic observations of group galaxies selected from the COSMOS survey, we compare the dynamical scaling relations of early-type CGs and non-CGs at z ? 0.6 to distinguish possible mechanisms that produce the required evolution. CGs are systematically offset toward larger R{sub e} at fixed ? compared to non-CGs with similar M {sub *}. The CG R{sub e} -M {sub *} relation also shows differences, primarily driven by a subpopulation (?15%) of galaxies with large R{sub e} , while the M {sub *}-? relations are indistinguishable. These results are accentuated when double Srsic profiles, which better fit light in the outer regions of galaxies, are adopted. They suggest that even group-scale CGs can develop extended components by these redshifts that can increase total R{sub e} and M {sub *} estimates by factors of ?2. To probe the evolutionary link between our sample and cluster CGs, we also analyze two cluster samples at z ? 0.6 and z ? 0. We find similar results for the more massive halos at comparable z, but much more distinct CG scaling relations at low-z. Thus, the rapid, late-time accretion of outer components, perhaps via the stripping and accretion of satellites, would appear to be a key feature that distinguishes the evolutionary history of CGs.

  2. Germantown Natural History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    History Basic Energy Sciences (BES) BES Home About Organization Chart .pdf file (47KB) Staff BES Budget BES Committees of Visitors Directions Jobs Organizational History Germantown Natural History President Kennedy's AEC Briefings Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW

  3. A Natural History | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    A Natural History Basic Energy Sciences (BES) BES Home About Organization Chart .pdf file (47KB) Staff BES Budget BES Committees of Visitors Directions Jobs Organizational History Germantown Natural History President Kennedy's AEC Briefings Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence

  4. A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY | Department of Energy

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

    A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY The Department of Energy Organization Act of 1977 created one the most interesting and diverse agencies in the Federal government. Activated on October 1, 1977, the twelfth cabinet-level department brought together for the first time within one agency two programmatic traditions that had long coexisted within the Federal establishment: 1) defense responsibilities

  5. History of the Energy Department's Role in Nuclear Security | Department of

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

    Energy History of the Energy Department's Role in Nuclear Security History of the Energy Department's Role in Nuclear Security April 6, 2015 - 2:58pm Addthis Allison Lantero Allison Lantero Digital Content Specialist, Office of Public Affairs Daniel Wood Daniel Wood Data Visualization and Cartographic Specialist, Office of Public Affairs Learn More Check out the cutting-edge nuclear research going on at the National Labs. Learn more about the history of the National Nuclear Security

  6. A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY | Department of Energy

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

    A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY A BRIEF HISTORY OF THE DEPARTMENT OF ENERGY The Department of Energy Organization Act of 1977 created one the most interesting and diverse agencies in the Federal government. Activated on October 1, 1977, the twelfth cabinet-level department brought together for the first time within one agency two programmatic traditions that had long coexisted within the Federal establishment: 1) defense responsibilities

  7. Towards quantitative off-axis electron holographic mapping of the electric field around the tip of a sharp biased metallic needle

    SciTech Connect (OSTI)

    Beleggia, M.; Kasama, T.; Larson, D. J.; Kelly, T. F.; Dunin-Borkowski, R. E.; Pozzi, G.

    2014-07-14

    We apply off-axis electron holography and Lorentz microscopy in the transmission electron microscope to map the electric field generated by a sharp biased metallic tip. A combination of experimental data and modelling provides quantitative information about the potential and the field around the tip. Close to the tip apex, we measure a maximum field intensity of 82 MV/m, corresponding to a field k factor of 2.5, in excellent agreement with theory. In order to verify the validity of the measurements, we use the inferred charge density distribution in the tip region to generate simulated phase maps and Fresnel (out-of-focus) images for comparison with experimental measurements. While the overall agreement is excellent, the simulations also highlight the presence of an unexpected astigmatic contribution to the intensity in a highly defocused Fresnel image, which is thought to result from the geometry of the applied field.

  8. Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code

    SciTech Connect (OSTI)

    Maniaci, D. C.; Li, Y.

    2011-10-01

    This paper describes a recent study to investigate the applicability of a horizontal-axis wind turbine (HAWT) structural dynamics and unsteady aerodynamics analysis program (FAST and AeroDyn respectively) to modeling the forces on marine hydrokinetic (MHK) turbines. This paper summarizes the added mass model that has been added to AeroDyn. The added mass model only includes flow acceleration perpendicular to the rotor disc, and ignores added mass forces caused by blade deflection. A model of the National Renewable Energy Laboratory's (NREL) Unsteady Aerodynamics Experiment (UAE) Phase VI wind turbine was analyzed using FAST and AeroDyn with sea water conditions and the new added mass model. The results of this analysis exhibited a 3.6% change in thrust for a rapid pitch case and a slight change in amplitude and phase of thrust for a case with 30{sup o} of yaw.

  9. Investigating the Influence of the Added Mass Effect to Marine Hydrokinetic Horizontal-Axis Turbines Using a General Dynamic Wake Wind Turbine Code: Preprint

    SciTech Connect (OSTI)

    Maniaci, D. C.; Li, Y.

    2012-04-01

    This paper describes a recent study to investigate the applicability of a horizontal-axis wind turbine (HAWT) structural dynamics and unsteady aerodynamics analysis program (FAST and AeroDyn respectively) to modeling the forces on marine hydrokinetic (MHK) turbines. It summarizes the added mass model that has been added to AeroDyn. The added mass model only includes flow acceleration perpendicular to the rotor disc, and ignores added mass forces caused by blade deflection. A model of the National Renewable Energy Laboratory's (NREL) Unsteady Aerodynamics Experiment (UAE) Phase VI wind turbine was analyzed using FAST and AeroDyn with sea water conditions and the new added mass model. The results of this analysis exhibited a 3.6% change in thrust for a rapid pitch case and a slight change in amplitude and phase of thrust for a case with 30 degrees of yaw.

  10. Combined effects of perfluorooctane sulfonate (PFOS) and maternal restraint stress on hypothalamus adrenal axis (HPA) function in the offspring of mice

    SciTech Connect (OSTI)

    Ribes, Diana; Fuentes, Silvia; Torrente, Margarita; Colomina, M. Teresa [Department of Psychology and Research Center for Behavioral Assessment (CRAMC), 'Rovira i Virgili' University, Sescelades Campus, 43007 Tarragona, Catalonia (Spain); Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, 'Rovira i Virgili' University, Sant Llorenc 21, 43201 Reus, Catalonia (Spain); Domingo, Jose L., E-mail: joseluis.domingo@urv.ca [Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, 'Rovira i Virgili' University, Sant Llorenc 21, 43201 Reus, Catalonia (Spain)

    2010-02-15

    Although it is known that prenatal exposure to perfluorooctane sulfonate (PFOS) can cause developmental adverse effects in mammals, the disruptive effects of this compound on hormonal systems are still controversial. Information concerning the effects of PFOS on hypothalamus adrenal (HPA) axis response to stress and corticosterone levels is not currently available. On the other hand, it is well established that stress can enhance the developmental toxicity of some chemicals. In the present study, we assessed the combined effects of maternal restraint stress and PFOS on HPA axis function in the offspring of mice. Twenty plug-positive female mice were divided in two groups. Animals were given by gavage 0 and 6 mg PFOS/kg/day on gestation days 12-18. One half of the animals in each group were also subjected to restraint stress (30 min/session, 3 sessions/day) during the same period. Five plug-positive females were also included as non-manipulated controls. At 3 months of age, activity in an open-field and the stress response were evaluated in male and female mice by exposing them to 30 min of restraint stress. Male and female offspring were subsequently sacrificed and blood samples were collected to measure changes in corticosterone levels at four different moments related to stress exposure conditions: before stress exposure, immediately after 30 min of stress exposure, and recuperation levels at 60 and 90 min after stress exposure. Results indicate corticosterone levels were lower in mice prenatally exposed to restraint. In general terms, PFOS exposure decreased corticosterone levels, although this effect was only significant in females. The recuperation pattern of corticosterone was mainly affected by prenatal stress. Interactive effects between PFOS and maternal stress were sex dependent. The current results suggest that prenatal PFOS exposure induced long-lasting effects in mice.

  11. A Short History of Waste Management at the Hanford Site

    SciTech Connect (OSTI)

    Gephart, Roy E.

    2010-03-31

    "The worlds first full-scale nuclear reactors and chemical reprocessing plants built at the Hanford Site in the desert of eastern Washington State produced two-thirds of the plutonium generated in the United States for nuclear weapons. Operating these facilities also created large volumes of radioactive and chemical waste, some of which was released into the environment exposing people who lived downwind and downstream. Hanford now contains the largest accumulation of nuclear waste in the Western Hemisphere. Hanfords last reactor shut down in 1987 followed by closure of the last reprocessing plant in 1990. Today, Hanfords only mission is cleanup. Most onsite radioactive waste and nuclear material lingers inside underground tanks or storage facilities. About half of the chemical waste remains in tanks while the rest persists in the soil, groundwater, and burial grounds. Six million dollars each day, or nearly two billion dollars each year, are spent on waste management and cleanup activities. There is significant uncertainty in how long cleanup will take, how much it will cost, and what risks will remain for future generations. This paper summarizes portions of the waste management history of the Hanford Site published in the book Hanford: A Conversation about Nuclear Waste and Cleanup.(1) "

  12. PSM case history: Regulatory compliance can prevent catastrophic incidents

    SciTech Connect (OSTI)

    Kiihne, E.J.; Mannan, M. [RMT/Jones and Neuse, Inc., Austin, TX (United States)

    1995-12-31

    As mandated by the Clean Air Act Amendments of 1990, the Occupational Safety and Health Administration promulgated on February 24, 1992 the Process Safety Management (PSM) rule: 29 CFR 1910.119. The PSM rule represents a holistic program which requires facilities to develop, implement and practice 14 different elements. Each of the 14 elements are significant in the protection of health and safety of all employees and personnel working in and around the plant site. PSM programs developed in compliance with the PSM rule are expected to reduce the probability and consequence of occurrence of hazardous incidents. This paper presents a real life incident that occurred in a plant before a PSM program was put in place. A detailed description of the incident is provided with appropriate discussions of non compliance with the PSM rule. Finally, the paper provides a theoretical scenario where a fully operational PSM program would have prevented the incident. The case history and discussion provided in this paper also reinforces the concept of maintaining process and equipment integrity through multiple barriers of safety. A fully operational PSM program represents such a multiple barrier safety system.

  13. The History of X-ray Free-Electron Lasers

    SciTech Connect (OSTI)

    Pellegrini, C.; ,

    2012-06-28

    The successful lasing at the SLAC National Accelerator Laboratory of the Linear Coherent Light Source (LCLS), the first X-ray free-electron laser (X-ray FEL), in the wavelength range 1.5 to 15 {angstrom}, pulse duration of 60 to few femtoseconds, number of coherent photons per pulse from 10{sup 13} to 10{sup 11}, is a landmark event in the development of coherent electromagnetic radiation sources. Until now electrons traversing an undulator magnet in a synchrotron radiation storage ring provided the best X-ray sources. The LCLS has set a new standard, with a peak X-ray brightness higher by ten orders of magnitudes and pulse duration shorter by three orders of magnitudes. LCLS opens a new window in the exploration of matter at the atomic and molecular scales of length and time. Taking a motion picture of chemical processes in a few femtoseconds or less, unraveling the structure and dynamics of complex molecular systems, like proteins, are some of the exciting experiments made possible by LCLS and the other X-ray FELs now being built in Europe and Asia. In this paper, we describe the history of the many theoretical, experimental and technological discoveries and innovations, starting from the 1960s and 1970s, leading to the development of LCLS.

  14. AXI LLC | Open Energy Information

    Open Energy Info (EERE)

    Boston Area Sector: Biofuels Product: Aims to make commercially feasible strains of algae for fuel production Coordinates: 42.2363996, -71.0200613 Show Map Loading map......

  15. Synthesis and characterization of 10?nm thick piezoelectric AlN films with high c-axis orientation for miniaturized nanoelectromechanical devices

    SciTech Connect (OSTI)

    Zaghloul, Usama; Piazza, Gianluca

    2014-06-23

    The scaling of piezoelectric nanoelectromechanical systems (NEMS) is challenged by the synthesis of ultrathin and high quality piezoelectric films on very thin electrodes. We report the synthesis and characterization of the thinnest piezoelectric aluminum nitride (AlN) films (10?nm) ever deposited on ultrathin platinum layers (25?nm) using reactive sputtering. X-ray diffraction, high-resolution transmission electron microscopy, and fast Fourier transform analyses confirmed the proper crystal orientation, fine columnar texture, and the continuous lattice structure within individual grains in the deposited AlN nanometer thick films. The average extracted d{sub 31} piezoelectric coefficient for the synthesized films is ?1.73 pC/N, which is comparable to the reported values for micron thick and highly c-axis oriented AlN films. The 10?nm AlN films were employed to demonstrate two different types of optimized piezoelectric nanoactuators. The unimorph actuators exhibit vertical displacements as large as 1.1??m at 0.7?V for 25??m long and 30?nm thick beams. These results have a great potential to realize miniaturized NEMS relays with extremely low voltage, high frequency resonators, and ultrasensitive sensors.

  16. Validation of Simplified Load Equations through Loads Measurement and Modeling of a Small Horizontal-Axis Wind Turbine Tower; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Dana, S.; Damiani, R.; vanDam, J.

    2015-05-18

    As part of an ongoing effort to improve the modeling and prediction of small wind turbine dynamics, NREL tested a small horizontal axis wind turbine in the field at the National Wind Technology Center (NWTC). The test turbine was a 2.1-kW downwind machine mounted on an 18-meter multi-section fiberglass composite tower. The tower was instrumented and monitored for approximately 6 months. The collected data were analyzed to assess the turbine and tower loads and further validate the simplified loads equations from the International Electrotechnical Commission (IEC) 61400-2 design standards. Field-measured loads were also compared to the output of an aeroelastic model of the turbine. Ultimate loads at the tower base were assessed using both the simplified design equations and the aeroelastic model output. The simplified design equations in IEC 61400-2 do not accurately model fatigue loads. In this project, we compared fatigue loads as measured in the field, as predicted by the aeroelastic model, and as calculated using the simplified design equations.

  17. Navy legend Carl Brashear speaks at JLab's Black History Month event |

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

    Jefferson Lab Carl Brashear poster Carl Brashear will speak at JLab's Black History Month event on Wednesday, February 19 at 2p.m. Navy legend Carl Brashear speaks at JLab's Black History Month event February 6, 2003 U.S. Naval legend Carl Brashear will be at Jefferson Lab on Wednesday, February 19, as the Lab's guest speaker for Black History Month Directions to the Lab Enter through Onnes Dr. from Jefferson Ave. Anyone 16 or older must show picture ID Vehicles & hand carried items are

  18. DOE - Fossil Energy: A Brief History of Coal Use in the United States

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

    History Fossil Energy Study Guides A Brief History of Coal Use Steam Locomotive - In the 1800s, one of the primary uses of coal was to fuel steam engines used to power locomotives. Coal is the most plentiful fuel in the fossil family and it has the longest and, perhaps, the most varied history. Coal has been used for heating since the cave man. Archeologists have also found evidence that the Romans in England used it in the second and third centuries (100-200 AD). In the 1700s, the English found

  19. UPPER BOUND ON THE FIRST STAR FORMATION HISTORY (Journal Article) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect UPPER BOUND ON THE FIRST STAR FORMATION HISTORY Citation Details In-Document Search Title: UPPER BOUND ON THE FIRST STAR FORMATION HISTORY Our understanding of the nature of the extragalactic background light (EBL) has improved with the recent development of gamma-ray observation techniques. An open subject in the context of the EBL is the reionization epoch, which is an important probe of the formation history of first stars, the so-called Population III (Pop III) stars. Although

  20. A History or Geothermal Energy Research and Development in the United

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

    States: Energy Conversion 1976-2006 | Department of Energy Energy Conversion 1976-2006 A History or Geothermal Energy Research and Development in the United States: Energy Conversion 1976-2006 A history of geothermal energy R&D in the U.S., 1976-2006 PDF icon geothermal_history_4_conversion.pdf More Documents & Publications Water Use in the Development and Operations of Geothermal Power Plants Water Use in the Development and Operations of Geothermal Power Plants Air-Cooled

  1. C.R.S. 24-80 - State History, Archives, and Emblems | Open Energy...

    Open Energy Info (EERE)

    Reference LibraryAdd to library Legal Document- StatuteStatute: C.R.S. 24-80 - State History, Archives, and EmblemsLegal Abstract This Colorado Statute governs the protection...

  2. Insights On The Thermal History Of The Valles Caldera, New Mexico...

    Open Energy Info (EERE)

    Insights On The Thermal History Of The Valles Caldera, New Mexico- Evidence From Zircon Fission-Track Analysis Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  3. Highlights of Y-12's History | Y-12 National Security Complex

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

    Highlights of Y-12's ... Highlights of Y-12's History Click a decade at right to show its highlights. Click again to hide. View highlights by decade since Y-12's initial planning...

  4. Y-12's history captured in short film | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    To close out the celebration of Y-12's 70th anniversary, a short film capturing highlights of the site's history now is available for viewing on the Y-12 public Web site at http:...

  5. An early history of pure shear in the upper plate of the raft...

    Open Energy Info (EERE)

    early history of pure shear in the upper plate of the raft river metamorphic core complex- black pine mountains, southern Idaho Jump to: navigation, search OpenEI Reference...

  6. History of Met Lab Section C-I, May 1945 to May 1946

    SciTech Connect (OSTI)

    Seaborg, G.T.

    1980-06-01

    This is the final volume of a history of the research work of Seaborg and associates in the University of Chicago Metallurgical Laboratory, Chemistry Section C-1. The work was concerned with the development of chemical procedures for the extraction of plutonium, for the purification of plutonium and, in the later phases, for research on the isotopes of other heavy elements including other transuranium elements. The style of the history is that of a diary with footnotes giving additional information.

  7. Virtual Museum Captures Ohio Plant History: Web-based Project Preserves

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

    Plant's Uranium Enrichment Legacy | Department of Energy Virtual Museum Captures Ohio Plant History: Web-based Project Preserves Plant's Uranium Enrichment Legacy Virtual Museum Captures Ohio Plant History: Web-based Project Preserves Plant's Uranium Enrichment Legacy May 21, 2012 - 12:00pm Addthis An online museum on the Portsmouth Gaseous Diffusion Plant went live earlier this year. An online museum on the Portsmouth Gaseous Diffusion Plant went live earlier this year. PIKETON, Ohio - Do

  8. A History of Geothermal Energy Research and Development in the United

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

    States: Exploration 1976-2006 | Department of Energy A History of Geothermal Energy Research and Development in the United States: Exploration 1976-2006 A History of Geothermal Energy Research and Development in the United States: Exploration 1976-2006 This report summarizes significant research projects performed by the U.S.Department of Energy (DOE)1 over 30 years to overcome challenges inexploration and to make generation of electricity from geothermal resourcesmore cost-competitive. PDF

  9. A History of Geothermal Energy Research and Development in the United States: Exploration 1976-2006

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

    Exploration 1976 - 2006 A History of Geothermal Energy Research and Development in the United States Cover Photo Credit Photomicrograph of quartz sampled from a depth of 948 feet in Lake City Observation Hole-1, Lake City geothermal system, California. The image was taken under crossed nicols. The vibrant birefringence colors are due to the section being extra thick. The field of view is 0.07 inches across. (Courtesy: Joseph N. Moore) A History of Geothermal Energy Research and Development in

  10. HISTORY OF THE ORIGIN OF THE CHEMICAL ELEMENTS AND THEIR DISCOVERIES.

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

    (Conference) | SciTech Connect Conference: HISTORY OF THE ORIGIN OF THE CHEMICAL ELEMENTS AND THEIR DISCOVERIES. Citation Details In-Document Search Title: HISTORY OF THE ORIGIN OF THE CHEMICAL ELEMENTS AND THEIR DISCOVERIES. × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in

  11. History of the FreedomCAR Environmental Science and Health Impacts Activity

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

    | Department of Energy History of the FreedomCAR Environmental Science and Health Impacts Activity History of the FreedomCAR Environmental Science and Health Impacts Activity 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: U.S. Department of Energy PDF icon 2004_deer_eberhardt.pdf More Documents & Publications Diesel Injection Shear-Stress Advanced Nozzle (DISSAN) Weekend/Weekday Ozone Study in the South Coast Air Basin The FreedomCAR & Vehicle Technologies

  12. History and Los Alamos: will there ever be a satisfactory relationship.

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect History and Los Alamos: will there ever be a satisfactory relationship. Citation Details In-Document Search Title: History and Los Alamos: will there ever be a satisfactory relationship. The secrecy required by nuclear research during the Second World War, and which continues in part to the present, fascinates as well as frustrates historians. This paper will discuss the difficulties of being an intermediary working to assist historians, while being required by

  13. The history of nuclear weapon safety devices (Conference) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    The history of nuclear weapon safety devices Citation Details In-Document Search Title: The history of nuclear weapon safety devices × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. A paper copy of this document is also available for sale to the

  14. History - Center for Plasma in the Laboratory and Astrophysics - UW Madison

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

    Physics Department History UW Madison Center for Plasma in the Laboratory and Astrophysics History CPLA Home - Experiments Madison Symmetric Torus Madsion Dynamo Experiment Rotating Wall Machine Plasma-Couette Experiment Madison Plasma Dynamo Experiment - Theory Groups MHD Turbulence Transport in Fusion Devices Plasma Astrophysics RFP Theory - Multi-Institutional Centers Center for Magnetic Self Organization Center for Theory and Computation Center for Momentum Transport and Flow

  15. Sandia signs MOU with New Mexico Museum of Natural History and Science |

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration signs MOU with New Mexico Museum of Natural History and Science | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets

  16. Live Q&A: Celebrating Black History Month and STEM Education | Department

    Office of Environmental Management (EM)

    of Energy Q&A: Celebrating Black History Month and STEM Education Live Q&A: Celebrating Black History Month and STEM Education February 22, 2013 - 3:14pm Q&A What questions do you have about STEM education & careers? Ask our experts Addthis Join our Google+ Hangout on increasing diversity in science, technology, engineering & math disciplines. | Infographic by Sarah Gerrity. Join our Google+ Hangout on increasing diversity in science, technology, engineering & math

  17. A History of Geothermal Energy Research and Development in the United

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

    States: Exploration 1976-2006 | Department of Energy Exploration 1976-2006 A History of Geothermal Energy Research and Development in the United States: Exploration 1976-2006 This report summarizes significant research projects performed by the U.S.Department of Energy (DOE)1 over 30 years to overcome challenges inexploration and to make generation of electricity from geothermal resourcesmore cost-competitive. PDF icon geothermal_history_1_exploration.pdf More Documents & Publications A

  18. A History or Geothermal Energy Research and Development in the United

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

    States: Drilling 1976-2006 | Department of Energy Drilling 1976-2006 A History or Geothermal Energy Research and Development in the United States: Drilling 1976-2006 This report summarizes significant research projects performed by the U.S.Department of Energy (DOE)1 over 30 years to overcome challenges inexploration and to make generation of electricity from geothermal resourcesmore cost-competitive. PDF icon geothermal_history_2_drilling.pdf More Documents & Publications Retrospective

  19. Prediction and analysis of infra and low-frequency noise of upwind horizontal axis wind turbine using statistical wind speed model

    SciTech Connect (OSTI)

    Lee, Gwang-Se; Cheong, Cheolung

    2014-12-15

    Despite increasing concern about low-frequency noise of modern large horizontal-axis wind turbines (HAWTs), few studies have focused on its origin or its prediction methods. In this paper, infra- and low-frequency (the ILF) wind turbine noise are closely examined and an efficient method is developed for its prediction. Although most previous studies have assumed that the ILF noise consists primarily of blade passing frequency (BPF) noise components, these tonal noise components are seldom identified in the measured noise spectrum, except for the case of downwind wind turbines. In reality, since modern HAWTs are very large, during rotation, a single blade of the turbine experiences inflow with variation in wind speed in time as well as in space, breaking periodic perturbations of the BPF. Consequently, this transforms acoustic contributions at the BPF harmonics into broadband noise components. In this study, the ILF noise of wind turbines is predicted by combining Lowson’s acoustic analogy with the stochastic wind model, which is employed to reproduce realistic wind speed conditions. In order to predict the effects of these wind conditions on pressure variation on the blade surface, unsteadiness in the incident wind speed is incorporated into the XFOIL code by varying incident flow velocities on each blade section, which depend on the azimuthal locations of the rotating blade. The calculated surface pressure distribution is subsequently used to predict acoustic pressure at an observing location by using Lowson’s analogy. These predictions are compared with measured data, which ensures that the present method can reproduce the broadband characteristics of the measured low-frequency noise spectrum. Further investigations are carried out to characterize the IFL noise in terms of pressure loading on blade surface, narrow-band noise spectrum and noise maps around the turbine.

  20. SU-E-T-623: Delivery of 3D Conformal Proton-Therapy Fields at Extended Source- To-Axis Distances

    SciTech Connect (OSTI)

    Kryck, E; Slopsema, R

    2014-06-15

    Purpose: To evaluate the dosimetric properties of proton dose distributions delivered at extended source-to-skin distances (SSD). Methods: Radiation was delivered with a gantry-mounted proton double scattering system (Proteus 230, IBA). This system has a maximum field diameter of 24 cm at isocenter and a nominal source-to-axis distance of 230 cm. Dose was measured at nominal SSD as well as at -10, +10, +25, +50, +75, and +100 cm for several range and modulation width combinations. Depth dose distributions were measured with a multi-layer ionization chamber (MLIC), and lateral dose distributions with a 2D ionization chamber array as well as with a diode in a water phantom. Results: The maximum field diameter was found to increase from 24.0 cm at nominal SSD to 29.1 cm and 33.3 cm at +50 cm and +100 cm respectively. Field flatness remained below 3% for all SSD. Tilt in the spread-out Bragg peak depth dose distribution increased with SSD up to 0.4 %-per-g/cm2 at +100 cm. The measured range decreased with 1.1x10-3 g/cm2 per centimeter shift in SSD due to proton energy loss in air, very close to the theoretically calculated value of 1.06x10-3 g/cm3. The output and dose rate decrease with the inverse of the SSD squared as expected. Conclusion: Extending the SSD up to 100 cm increases the maximum field diameter from 24.0 cm to 33.3 cm while the dose uniformity remains acceptable.

  1. Fibroblast growth factor-2 up-regulates the expression of nestin through the RasRafERKSp1 signaling axis in C6 glioma cells

    SciTech Connect (OSTI)

    Chang, Kai-Wei; Huang, Yuan-Li; Wong, Zong-Ruei; Su, Peng-Han; Huang, Bu-Miin; Ju, Tsai-Kai; Technology Commons, College of Life Science, National Taiwan University, Taipei 106, Taiwan ; Yang, Hsi-Yuan

    2013-05-17

    Highlights: Nestin expression in C6 glioma cells is induced by FGF-2. Nestin expression is induced by FGF-2 via de novo RNA and protein synthesis. The FGFR inhibitor SU5402 blocks the FGF-2-induced nestin expression. The mRNA of FGFR1 and 3 are detected in C6 glioma cells. RasRafERKSp1 signaling pathway is responsibe for FGF-2-induced nestin expression. -- Abstract: Nestin is a 240-kDa intermediate filament protein expressed mainly in neural and myogenic stem cells. Although a substantial number of studies have focused on the expression of nestin during development of the central nervous system, little is known about the factors that induce and regulate its expression. Fibroblast growth factor-2 (FGF-2) is an effective mitogen and stimulates the proliferation and differentiation of a subset of nestin-expressing cells, including neural progenitor cells, glial precursor cells, and smooth muscle cells. To assess whether FGF-2 is a potent factor that induces the expression of nestin, C6 glioma cells were used. The results showed that nestin expression was up-regulated by FGF-2 via de novo RNA and protein synthesis. Our RT-PCR results showed that C6 glioma cells express FGFR1/3, and FGFRs is required for FGF-2-induced nestin expression. Further signaling analysis also revealed that FGF-2-induced nestin expression is mediated through FGFRMAPKERK signaling axis and the transcriptional factor Sp1. These findings provide new insight into the regulation of nestin in glial system and enable the further studies on the function of nestin in glial cells.

  2. THE STAR-FORMING HISTORIES OF THE NUCLEUS, BULGE, AND INNER DISK OF NGC5102: CLUES TO THE EVOLUTION OF A NEARBY LENTICULAR GALAXY {sup ,} {sup ,}

    SciTech Connect (OSTI)

    Davidge, T. J.

    2015-01-20

    Long slit spectra recorded with the Gemini Multi-Object Spectrograph on Gemini South are used to examine the star-forming history (SFH) of the lenticular galaxy NGC5102. Structural and supplemental photometric information are obtained from archival Spitzer [3.6] images. Absorption features at blue and visible wavelengths are traced out along the minor axis to galactocentric radii ?60 arcsec (?0.9 kpc), sampling the nucleus, bulge, and disk components. Comparisons with model spectra point to luminosity-weighted metallicities that are consistent with the colors of resolved red giant branch stars in the disk. The nucleus has a luminosity-weighted age at visible wavelengths of ?1{sub ?0.1}{sup +0.2}Gyr, and the integrated light is dominated by stars that formed over a time period of only a few hundred Myr. For comparison, the luminosity-weighted ages of the bulge and disk are ?2{sub ?0.2}{sup +0.5}Gyr and 10{sub ?2}{sup +2}Gyr, respectively. The g' [3.6] colors of the nucleus and bulge are consistent with the spectroscopically based ages. In contrast to the nucleus, models that assume star-forming activity spanning many Gyr provide a better match to the spectra of the bulge and disk than simple stellar population models. Isophotes in the bulge have a disky shape, hinting that the bulge was assembled from material with significant rotational support. The SFHs of the bulge and disk are consistent with the bulge forming from the collapse of a long-lived bar, rather than from the collapse of a transient structure that formed as the result of a tidal interaction. It is thus suggested that the progenitor of NGC5102 was a barred disk galaxy that morphed into a lenticular galaxy through the buckling of its bar.

  3. HISTORY OF THE ENGINEERING PHYSICS AND MATHEMATICS DIVISION 1955-1993

    SciTech Connect (OSTI)

    Maskewitz, B.F.

    2001-09-14

    A review of division progress reports noting significant events and findings of the Applied Nuclear Physics, Neutron Physics, Engineering Physics, and then Engineering Physics and Mathematics divisions from 1955 to 1993 was prepared for use in developing a history of the Oak Ridge National Laboratory in celebration of its 50th year. The research resulted in an accumulation of historic material and photographs covering 38 years of effort, and the decision was made to publish a brief history of the division. The history begins with a detailed account of the founding of the Applied Nuclear Physics Division in 1955 and continues through the name change to the Neutron Physics Division in the late 1950s. The material thereafter is presented in decades--the sixties, seventies, and eighties--and ends as we enter the nineties.

  4. Crashworthiness Assessment of Auto-body Members Considering the Fabrication Histories

    SciTech Connect (OSTI)

    Huh, Hoon; Song, Jung-Han; Kim, Kee-Poong; Kim, Hyun-Sub

    2005-08-05

    This paper is concerned with crashworthiness of auto-body members considering the effect of fabrication. Most auto-body members are fabricated with sheet metal forming process and welding process that induce fabrication histories such as the plastic work hardening, non-uniform thickness distribution and residual stress. Crash simulation is carried out for auto-body members with LS-DYNA3D in order to identify the fabrication effect on the crashworthiness. The analysis calculated crash mode, the reaction force and the energy absorption for crashworthiness assessment with the forming effect. The result shows that the crash analysis with considering the forming history leads to a different result from that without considering the forming effect. The analysis results demonstrate that the design of auto-body members should be carried out considering the forming history for accurate assessment of the crashworthiness.

  5. Extended Community: An Oral History of the Community Environmental Monitoring Program (CEMP), 1989 - 2003

    SciTech Connect (OSTI)

    Susan DeSilva

    2004-07-01

    Studying the Community Environmental Monitoring Program (CEMP) provides a unique opportunity to trace a concept created by two nuclear industry originators from inception, as it transitioned through several stewardship agencies, to management by a non-profit organization. This transition is informed not only by changes over two decades in the views of the general populace toward nuclear testing but also by changing political climates and public policies. Several parallel histories accompanied the development of the CEMP: an administrative history, an environmental history, and a history of changing public perception of not only nuclear testing, but other activities involving radiation such as waste transportation, as well. Although vital, those histories will be provided only as background to the subject of this study, the oral histories gathered in this project. The oral histories collected open a window into the nuclear testing history of Nevada and Utah that has not heretofore been opened. The nuclear industry has generated a great deal of positive and negative reaction since its inception. The CEMP emerged with specific objectives. It was designed to provide information to potential downwind communities and counter negative perceptions by creating more community involvement and education about the testing. The current objectives of the program are to: (1) Manage and maintain the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office (NNSA/NSO) offsite monitoring program including 26 radiation and environmental monitoring stations with associated equipment. Provide air sample collection and analysis, radiological and meteorological data collection, interpretation and reporting. (2) Facilitate independent operation of radiological monitoring stations and data verification by private citizens living in communities in proximity to the Nevada Test Site (NTS). (3) Hire and initiate training of local citizens to serve as Community Environmental Monitors (CEMs) in designated communities. (4) Provide relevant training by qualified instructors to the CEMs as necessary. (5) Assist and manage CEMs in accomplishing their duties, and ensure that contracts and paychecks are issued on schedule. (6) Provide CEMs and Emeriti monthly materials to facilitate public awareness. This project explores how those objectives evolved over time with changes in the nuclear testing program. How similar are today's objectives to those originally established for the program? Do those objectives reflect a changing political landscape as well as changes in testing needs? Those questions and more will be addressed as we follow the program from its inception, through earlier versions administered first by the Public Health Service (PHS), then by the U.S. Environmental Protection Agency (EPA) to the current administrator, the Desert Research Institute (DRI).

  6. Snake River Fall Chinook Salmon Life History Investigations, Annual Report 2008.

    SciTech Connect (OSTI)

    Tiffan, Kenneth F.; Connor, William P.; Bellgraph, Brian J.

    2009-09-15

    This study was initiated to provide empirical data and analyses on the dam passage timing, travel rate, survival, and life history variation of fall Chinook salmon that are produced in the Clearwater River. The area of interest for this study focuses on the lower four miles of the Clearwater River and its confluence with the Snake River because this is an area where many fish delay their seaward migration. The goal of the project is to increase our understanding of the environmental and biological factors that affect juvenile life history of fall Chinook salmon in the Clearwater River. The following summaries are provided for each of the individual chapters in this report.

  7. Early social history of Los Alamos focus of 70th anniversary lecture at

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

    Bradbury Science Museum 70th anniversary lecture Early social history of Los Alamos focus of 70th anniversary lecture at Bradbury Science Museum The early social history of Los Alamos during the Manhattan Project beginnings will be discussed at a talk by Jon Hunner. May 2, 2013 Cars stopped at the main guard gate to Los Alamos looking east. Cars stopped at the main guard gate to Los Alamos looking east. Contact Steve Sandoval Communications Office (505) 665-9206 Email Hunner heads the

  8. Legendary Tuskegee Airmen to Speak at Jefferson Lab's Black History Month

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

    Event | Jefferson Lab Legendary Tuskegee Airmen to Speak at Jefferson Lab's Black History Month Event February 3, 2004 Three members of the legendary, World War II era Tuskegee Airmen will speak at Jefferson Lab's Black History Month celebration at 2:30 p.m. on Thursday, Feb. 19. The public is invited to the event. The program will start with footage from the 1996 movie based on the true story of the Tuskegee Airmen, the first squadron of black American pilots to defend their country in

  9. Sixth Chapter of Hanford Story Released to Public: Chapter Covers History

    Energy Savers [EERE]

    and Cleanup of Most Hazardous Facility at Hanford | Department of Energy Sixth Chapter of Hanford Story Released to Public: Chapter Covers History and Cleanup of Most Hazardous Facility at Hanford Sixth Chapter of Hanford Story Released to Public: Chapter Covers History and Cleanup of Most Hazardous Facility at Hanford April 18, 2012 - 12:00pm Addthis Media Contacts Cameron Hardy, DOE (509) 376-5365, Cameron.Hardy@rl.doe.gov RICHLAND, Wash. - The Department of Energy is releasing the sixth

  10. In Celebration of Black History Month, Energy Secretary Moniz and Director

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

    of the National Museum of African Art Dr. Cole Discuss the Art of Science | Department of Energy In Celebration of Black History Month, Energy Secretary Moniz and Director of the National Museum of African Art Dr. Cole Discuss the Art of Science In Celebration of Black History Month, Energy Secretary Moniz and Director of the National Museum of African Art Dr. Cole Discuss the Art of Science February 23, 2015 - 1:50am Addthis News Media Contact 202 586 4940 RSVP@hq.doe.gov In Celebration of

  11. Community Reflects on Pivotal Moment in History with B Reactor | Department

    Office of Environmental Management (EM)

    of Energy Reflects on Pivotal Moment in History with B Reactor Community Reflects on Pivotal Moment in History with B Reactor September 29, 2014 - 12:00pm Addthis David Klaus, Deputy Under Secretary for Management and Performance, was joined by Mindi Linquist, State Director for U.S. Sen. Patty Murray, right, and Erik Olds, Chief of Staff, EM’s Office or River Protection, second from left, for an explanation of B Reactor operations from Gene Weisskopf with the B Reactor Museum

  12. STEM Mentoring Café at the Smithsonian National Museum of Natural History

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

    | Department of Energy STEM Mentoring Café at the Smithsonian National Museum of Natural History STEM Mentoring Café at the Smithsonian National Museum of Natural History December 18, 2014 - 12:19pm Addthis The Deputy Secretary Kicks Off the STEM Mentoring Café 1 of 5 The Deputy Secretary Kicks Off the STEM Mentoring Café Deputy Secretary Elizabeth Sherwood-Randall gave opening remarks at the event explaining that mistakes can often lead to breakthroughs and encouraging the students to

  13. A History or Geothermal Energy Research and Development in the United States: Energy Conversion 1976-2006

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

    Energy Conversion 1976 - 2006 A History of Geothermal Energy Research and Development in the United States Cover Photo Credits The Geysers Geothermal Power Plant, Sonoma County, California (Courtesy: Calpine Corporation) A History of Geothermal Energy Research and Development in the United States | Energy Conversion i ENERGY CONVERSION This history of the U.S. Department of Energy's research program in geothermal energy is dedicated to the many government employees who worked diligently for the

  14. Celebrating Women's History Month with the White House Council on Women and Girls

    Broader source: Energy.gov [DOE]

    This March for Women's History Month, the White House is posting a series of blogs from heads of our country's federal agencies, celebrating successes over the last year and pushing for more. Read the other agency blogs at http://www.whitehouse.gov/administration/eop/cwg/blog

  15. SCADA History

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

    ... How to Partner Small Business Vouchers Pilot at ... Before SCADA, "you had to send people around the plants to ... operational systems in hydroelectric dams; water treatment ...

  16. Tag: History

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

    http:www.y12.doe.govnewsy-12-reporthunch-about-hunley

  17. NERSC History

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

    Console 19 BACK TO NERSC.GOV About this timeline Search Enter search term Go Displaying: All storiesX1 stories matching '' (clear) Close Category Filter Close View Type Standard...

  18. Our History

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

    With a national security focus, the Laboratory also works on nuclear nonproliferation and border security, energy and infrastructure security, and countermeasures to nuclear and...

  19. ESnet History

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

    Transition from ATM to POS 2003 - Bill Johnston becomes ESnet Department Head - First Lehman review of ESnet 2004 - OSCARS project started - Network outages tracked by calendaring...

  20. NERSC History

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

    Energy program, and simulating the behavior of plasma in a fusion reactor required a computer center dedicated to this purpose. Founded in 1974 at Lawrence Livermore National...

  1. A History

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

    ... in the meantime the American people are entitled to all ... flood of letters from the public helped to turn a moment of ... thirties for the Public Health Service and had been the ...

  2. A History

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

    of the United States Atomic Energy Commission Volume II 1947/1952 Morale /Meld Richard G. Hewlett / Francis Duncan 1972 U.S. Atomic Energy Commission CONTENTS FOREWORD BY THE CHAIRMAN, HISTORICAL ADVISORY COMMITTEE xi PREFACE xiii 1 THE TERRIBLE RESPONSIBILITY 1 Historical setting; the confirmation hearings, Janu- ary-March 1947. 2 UNCERTAIN MANDATE 15 Initial organization and staffing; initial policy con- siderations in weapons, production, and research; the report to the President, April 3,

  3. LDRD Project Datasheet Template | The Ames Laboratory

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

    Datasheet Template Document Number: NA Effective Date: 10/2014 File (public): PDF icon ldrd_proj_datasheet_template.pdf

  4. Cosmology with hybrid expansion law: scalar field reconstruction of cosmic history and observational constraints

    SciTech Connect (OSTI)

    Akarsu, zgr [Department of Physics, Ko University, 34450 Sariyer, ?stanbul (Turkey); Kumar, Suresh [Department of Mathematics, BITS Pilani, Pilani Campus, Rajasthan-333031 (India); Myrzakulov, R.; Sami, M. [Centre of Theoretical Physics, Jamia Millia Islamia, New Delhi-110025 (India); Xu, Lixin, E-mail: oakarsu@ku.edu.tr, E-mail: sukuyd@gmail.com, E-mail: rmyrzakulov@gmail.com, E-mail: samijamia@gmail.com, E-mail: lxxu@dlut.edu.cn [Institute of Theoretical Physics, Dalian University of Technology, Dalian, 116024 (China)

    2014-01-01

    In this paper, we consider a simple form of expansion history of Universe referred to as the hybrid expansion law - a product of power-law and exponential type of functions. The ansatz by construction mimics the power-law and de Sitter cosmologies as special cases but also provides an elegant description of the transition from deceleration to cosmic acceleration. We point out the Brans-Dicke realization of the cosmic history under consideration. We construct potentials for quintessence, phantom and tachyon fields, which can give rise to the hybrid expansion law in general relativity. We investigate observational constraints on the model with hybrid expansion law applied to late time acceleration as well as to early Universe a la nucleosynthesis.

  5. Depositional history of sediments near a major submarine municipal wastewater outfall system

    SciTech Connect (OSTI)

    Eganhouse, R.P.

    1996-10-01

    Sediments deposited near the Los Angeles County Sanitation Districts` submarine outfall system contain a variety of contaminants, and the history of waste emissions is recorded in vertical concentration profiles of waste-specific molecular markers. Using cores collected in 1991 and 1992 we reconstructed the depositional history of shelf sediments by comparing distributions of three classes of hydrophobic organic compounds (DDTs, PCBs, and the long-chain alkylbenzenes) with information about their release from the outfall system and/or domestic usage patterns. These data show that the average sedimentation rate at this site during the period 1981-92 was nearly double that observed during the previous 25 years. The recent increase in sedimentation is attributable to activation of a local landslide and the occurrence of several large storms during the 1980s. Together these events have acted to mobilize a large mass of sediment for transport to offshore sediments resulting in enhanced burial of the most heavily contaminated sediments.

  6. The natural history of Enewetak Atoll: Volume 1, The ecosystem: Environments, biotas, and processes

    SciTech Connect (OSTI)

    Devaney, D.M.; Reese, E.S.; Burch, B.L.; Helfrich, P.

    1987-01-01

    The two volumes of The Natural History of Enewetak Atoll summarize research done at the Mid-Pacific Research Laboratory from 1954 to 1984 under the auspices of the Department of Energy. The history of the laboratory and the reasons for its support by the United States Department of Energy are described in Chapter 1 of Volume 1. Volume 1 provides a synthesis of the research carried out under the subject headings of the respective chapters. Certain of the chapters, e.g., those on geology, subtidal and intertidal environments and ecology, and those on reef processes and trophic relationships, summarize a great diversity of research carried out by many scientists for many years. In contrast, the chapters on meteorology and oceanography summarize research carried out under one integrated program involving fewer scientists working over a shorter period. Individual chapters are processed separately for the data base.

  7. Y-12s Training and Technology … Case Histories

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

    Case Histories From a report of the Department of Labor designated as the Manpower Research Monograph No. 29 and titled A model for training the disadvantaged: TAT at Oak Ridge, Tenn., comes the following case histo- ries of graduates of TAT. "One trainee entered TAT in October 1969 under the sponsorship of the Tennessee Rural CEP. Initial testing revealed substantial educational deficiencies, and the requirement for sixth-grade reading and math achievement was waived in his case. His eight

  8. SRP engineering and design history, Vol III, 200 F and H Areas

    SciTech Connect (OSTI)

    Banick, C.J.

    2000-04-17

    This volume combines the record of events relating to the development of design for both the 200-F and H Areas. Chronologically, the definition of plant facilities was first established for the 200-F Area. The second area, 200-H, was projected initially to be a supplementary plutonium separations facility. This history explains the differences in character and capacity of the manufacturing facilities in both areas as production requirements and experience with separations processes advanced.

  9. Heritage Tourism and Y-12, K-25 and X-10 history

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

    Heritage Tourism and Y-12, K-25 and X-10 history Heritage Tourism is a current buzzword that seems to be catching on across the nation. Places like the World War II museum and even places as small as the Casey Jones Museum are making economic headway for their cities and communities promoting the idea of historical designations. A Heritage Tourism study was recently completed for the Oak Ridge Convention and Visitor's Bureau by Akins Crisp Public Strategies where such approaches as designating

  10. Uranium Sequestration via Phosphate Infiltration/Injection Test History Supporting the Preferred Alternative

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

    Uranium Sequestration via Phosphate Infiltration/Injection Test History Supporting the Preferred Alternative 1 300 Area GW Concentrations - Uranium High River Stage - GW replenished with U from PRZ at liquid waste disposal facilities Low River Stage - GW U plume migrates toward river; note 618-7 U plume created by RTD practices 2 Challenge = GW Cleanup Requires Addressing U in PRZ Primary source of U to GW is the PRZ; ~30% of remaining U inventory is periodically saturated with high bicarbonate

  11. We create materials and energy solutions. Our 60+ year history of doing great

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

    create materials and energy solutions. Our 60+ year history of doing great science has had a significant impact on our nation. Our research programs reflect our multi-disciplinary, cross-cutting approach to scientific discovery. Chemical and Biological Sciences: We conduct fundamental and applied studies of how to control and manipulate chemicals and biological materials, with expertise in developing new tools and advanced computational methods to understand what drives chemical and biological

  12. COLLOQUIUM: Probing the History and Dynamics of the Universe with Polarized

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

    Signatures in the Cosmic Microwave Background | Princeton Plasma Physics Lab September 23, 2015, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Probing the History and Dynamics of the Universe with Polarized Signatures in the Cosmic Microwave Background Professor Suzane Staggs Princeton University Presentation: PDF icon WC23SEP2015SStaggs.pdf The cosmic microwave background (CMB) radiation reports the initial conditions in the universe for the formation of large scale structures

  13. A History of Geothermal Energy Research and Development in the United

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

    States: Reservoir Engineering 1976-2006 | Department of Energy Reservoir Engineering 1976-2006 A History of Geothermal Energy Research and Development in the United States: Reservoir Engineering 1976-2006 This report summarizes significant research projects performed by the U.S. Department of Energy (DOE) over 30 years to overcome challenges in reservoir engineering and to make generation of electricity from geothermal resources more cost-competitive. PDF icon

  14. CARDS - comprehensive aerological reference data set. Station history, Version 2.1

    SciTech Connect (OSTI)

    1994-03-01

    The possibility of anthropogenic climate change has reached the attention of Government officials and researchers. However, one cannot study climate change without climate data. The CARDS project will produce high-quality upper-air data for the research community and for policy-makers. The authors intend to produce a dataset which is: easy to use, as complete as possible, as free of random errors as possible. They will also attempt to identify biases and remove them whenever possible. In this report, they relate progress toward their goal. They created a robust new format for archiving upper-air data, and designed a relational database structure to hold them. The authors have converted 13 datasets to the new format and have archived over 10,000,000 individual soundings from 10 separate data sources. They produce and archive a metadata summary of each sounding they load. They have researched station histories, and have built a preliminary upper-air station history database. They have converted station-sorted data from their primary database into synoptic-sorted data in a parallel database. They have tested and will soon implement an advanced quality-control procedure, capable of detecting and often repairing errors in geopotential height, temperature, humidity, and wind. This unique quality-control method uses simultaneous vertical, horizontal, and temporal checks of several meteorological variables. It can detect errors other methods cannot. This report contains the station histories for the CARDS data set.

  15. The natural history of Enewetak Atoll: Volume 2, Biogeography and systematics

    SciTech Connect (OSTI)

    Devaney, D.M.; Reese, E.S.; Burch, B.L.; Helfrich, P.

    1987-01-01

    The two volumes of The Natural History of Enewetak Atoll summarize research done at the Mid-Pacific Research Laboratory from 1954 to 1984 under the auspices of the Department of Energy. Volume 2 of The Natural History of Enewetak Atoll provides information on the taxonomy of animals and plants known to occur at Enewetak Atoll. The collections on which the checklists in each chapter are based are housed at the Bernice P. Bishop Museum in Honolulu and the US National Museum of Natural History, Smithsonian Institution, Washington, DC. In addition to the species checklists, each chapter in Volume 2 provides a succinct summary of the biota with respect to endemism, range extensions, and other features that set the Enewetak biota apart from those one might expect to find on equivalent Indo-Pacific islands. This compendium of taxonomic information for an atoll should prove of immense value to scientists interested in biogeography and evolutionary biology of island ecosystems for years to come. Individual chapters are processed separately for the data base.

  16. ACCURATE UNIVERSAL MODELS FOR THE MASS ACCRETION HISTORIES AND CONCENTRATIONS OF DARK MATTER HALOS

    SciTech Connect (OSTI)

    Zhao, D. H.; Jing, Y. P.; Mo, H. J.; Boerner, G.

    2009-12-10

    A large amount of observations have constrained cosmological parameters and the initial density fluctuation spectrum to a very high accuracy. However, cosmological parameters change with time and the power index of the power spectrum dramatically varies with mass scale in the so-called concordance LAMBDACDM cosmology. Thus, any successful model for its structural evolution should work well simultaneously for various cosmological models and different power spectra. We use a large set of high-resolution N-body simulations of a variety of structure formation models (scale-free, standard CDM, open CDM, and LAMBDACDM) to study the mass accretion histories, the mass and redshift dependence of concentrations, and the concentration evolution histories of dark matter halos. We find that there is significant disagreement between the much-used empirical models in the literature and our simulations. Based on our simulation results, we find that the mass accretion rate of a halo is tightly correlated with a simple function of its mass, the redshift, parameters of the cosmology, and of the initial density fluctuation spectrum, which correctly disentangles the effects of all these factors and halo environments. We also find that the concentration of a halo is strongly correlated with the universe age when its progenitor on the mass accretion history first reaches 4% of its current mass. According to these correlations, we develop new empirical models for both the mass accretion histories and the concentration evolution histories of dark matter halos, and the latter can also be used to predict the mass and redshift dependence of halo concentrations. These models are accurate and universal: the same set of model parameters works well for different cosmological models and for halos of different masses at different redshifts, and in the LAMBDACDM case the model predictions match the simulation results very well even though halo mass is traced to about 0.0005 times the final mass, when cosmological parameters and the power index of the initial density fluctuation spectrum have changed dramatically. Our model predictions also match the PINOCCHIO mass accretion histories very well, which are much independent of our numerical simulations and our definitions of halo merger trees. These models are also simple and easy to implement, making them very useful in modeling the growth and structure of dark matter halos. We provide appendices describing the step-by-step implementation of our models. A calculator which allows one to interactively generate data for any given cosmological model is provided on the Web, together with a user-friendly code to make the relevant calculations and some tables listing the expected concentration as a function of halo mass and redshift in several popular cosmological models. We explain why LAMBDACDM and open CDM halos on nearly all mass scales show two distinct phases in their mass growth histories. We discuss implications of the universal relations we find in connection to the formation of dark matter halos in the cosmic density field.

  17. AN ASSESSMENT OF THE SERVICE HISTORY AND CORROSION SUSCEPTIBILITY OF TYPE IV WASTE TANKS

    SciTech Connect (OSTI)

    Wiersma, B

    2008-09-18

    Type IV waste tanks were designed and built to store waste that does not require auxiliary cooling. Each Type IV tank is a single-shell tank constructed of a steel-lined pre-stressed concrete tank in the form of a vertical cylinder with a concrete domed roof. There are four such tanks in F-area, Tanks 17-20F, and four in H-Area, Tanks 21-24H. Leak sites were discovered in the liners for Tanks 19 and 20F in the 1980's. Although these leaks were visually observed, the investigation to determine the mechanism by which the leaks had occurred was not completed at that time. Therefore, a concern was raised that the same mechanism which caused the leak sites in the Tanks in F-area may also be operable in the H-Area tanks. Data from the construction of the tanks (i.e., certified mill test reports for the steel, no stress-relief), the service history (i.e., waste sample data, temperature data), laboratory tests on actual wastes and simulants (i.e., electrochemical testing), and the results of the visual inspections were reviewed. The following observations and conclusions were made: (1) Comparison of the compositional and microstructural features indicate that the A212 material utilized for construction of the H-Area tanks are far more resistant to SCC than the A285 materials used for construction of the F-Area tanks. (2) A review of the materials of construction, temperature history, service histories concluded that F-Area tanks likely failed by caustic stress corrosion cracking. (3) The environment in the F-Area tanks was more aggressive than that experienced by the H-Area tanks. (4) Based on a review of the service history, the H-Area tanks have not been exposed to an environment that would render the tanks susceptible to either nitrate stress corrosion cracking (i.e., the cause of failures in the Type I and II tanks) or caustic stress corrosion cracking. (5) Due to the very dilute and uninhibited solutions that have been stored in Tank 23H, vapor space corrosion has occurred on some of areas of the liner. The mild pitting that was observed is broad and shallow and has no structural impact. Further significant pit growth has not been observed since the 1980's.

  18. Species profiles: Life histories and environmental requirements of coastal fishes and invertebrates (South Florida)

    SciTech Connect (OSTI)

    Zale, A.V.; Merrifield, S.G. )

    1989-07-01

    Species profiles are literature summaries of the taxonomy, morphology, distribution, life history, habitats, and environmental requirements of coastal species of fishes and aquatic invertebrates. They are designed to assist in environmental impact assessment. The tarpon and ladyfish are popular gamefishes. Adults spawn offshore. Larval and juvenile stages inhabit coastal marshes and mangroves. Both species are thermophilic (preferring warm water), euryhaline (tolerant of a wide range of salinity), and are capable of surviving at low oxygen concentrations. Wetlands destruction and degradation negatively affect these species by reducing nursery areas. 3 figs.

  19. EM's West Valley Cleanup Finds Success in History-Making Waste Relocation

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

    | Department of Energy Workers load an overpack container into a vertical storage cask. Workers load an overpack container into a vertical storage cask. WEST VALLEY, N.Y. - For the first time in U.S. history, high-level waste (HLW) was placed in long-term, outdoor storage. The unprecedented accomplishment occurred in EM's cleanup at the West Valley Demonstration Project (WVDP). The liquid waste, which had been immobilized in glass in the vitrification process, is being relocated from the

  20. COLLOQUIUM: "The Usefulness of Useless Knowledge": The History of the

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

    Institute for Advanced Study | Princeton Plasma Physics Lab January 29, 2014, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: "The Usefulness of Useless Knowledge": The History of the Institute for Advanced Study Christine Di Bella Institute for Advanced Study Abstract: PDF icon COLL.01.29.14.pdf A private, independent academic institution in Princeton, New Jersey, the Institute for Advanced Study is one of the world's leading centers for theoretical research and intellectual