National Library of Energy BETA

Sample records for lightning service burning

  1. Theory of ball lightning

    E-Print Network [OSTI]

    Wu, H -C

    2014-01-01

    We present a comprehensive explanation on ball lightning, a luminous sphere occasionally witnessed after ordinary lightning. In the last decade, it has been well established that natural lightning routinely generates relativistic electrons, which account for observed x rays. So we assume that, in a ball lightning event, a well-defined relativistic electron bunch is produced by the stepped leader of lightning. When this electron bunch strikes various media, a powerful microwave pulse is emitted by the coherent transition radiation mechanism. This intense microwave ionizes air, evacuates plasmas by its radiation pressure to form a globular plasma cavity, and then gets trapped inside the cavity. This theory successfully explains all characteristics of ball lightning, especially the appearance of ball lightning in fully-screened aircraft. Moreover, the proposed radiation mechanism fully explains the strongest radio signals from lightning and nanosecond spikes in the signals are direct evidences on the generation ...

  2. Cloud-to-Ground Lightning Downwind of the 2002 Hayman Forest Fire in Colorado

    E-Print Network [OSTI]

    Rutledge, Steven

    Cloud-to-Ground Lightning Downwind of the 2002 Hayman Forest Fire in Colorado Timothy J. Lang@atmos.colostate.edu 1 #12;Abstract The Hayman forest fire occurred near Denver, burning ~138,000 acres during 8 June-2 ingesting smoke from forest fires. For example, Latham (1991) observed entirely +CG lightning from

  3. Structure of conducting channel of lightning

    SciTech Connect (OSTI)

    Alanakyan, Yu. R.

    2013-08-15

    The spatial distribution of the plasma density in a lightning channel is studied theoretically. It is shown that the electric-field double layer is formed at the channel boundary. In this case, the electron temperature changes abruptly and ions are accelerated by the electric field of the double layer. The ion momentum flux density is close to the surrounding gas pressure. Cleaning of the channel from heavy particles occurs in particle-exchange processes between the plasma channel and the surrounding air. Hydrogen ions are accumulated inside the expanding channel from the surrounding air, which is enriched by hydrogen-contained molecules. In this case, the plasma channel is unstable and splits to a chain of equidistant bunches of plasma. The hydrogen-enrich bunches burn diffusely after recombination exhibiting the bead lightning behavior.

  4. -A Science Service Feature WHYTHEWEA!t"ER ?

    E-Print Network [OSTI]

    streak. (Tomorrow: Ball Lightning. ) A l l rights reserved by Science Service, Inc,, SCIENCE SERVICE, B University; aiscussee: RIBBON AND DARK LIGHTNING If YaU look closely at the photograph of a heavy lightning incheb or more than a foot, show several distinct, well separated, parallel flashes, such lightning

  5. Eddy Current Model of Ball Lightning

    E-Print Network [OSTI]

    Shelton, J D

    2011-01-01

    Eddy Current Model of Ball Lightning Calculations show that high-energy ball lightning may consist of a ball of plasma containing a large circular electric current arising as an eddy current generated by lightning. Synthetic ball lightning might serve as a method of plasma confinement for purposes of nuclear fusion. In this paper, three articles concerning ball lightning and the related phenomenon of large ball lightning are combined to provide insight into this rarely glimpsed occurrence.

  6. Eddy Current Model of Ball Lightning

    E-Print Network [OSTI]

    J. D. Shelton

    2011-02-07

    Eddy Current Model of Ball Lightning Calculations show that high-energy ball lightning may consist of a ball of plasma containing a large circular electric current arising as an eddy current generated by lightning. Synthetic ball lightning might serve as a method of plasma confinement for purposes of nuclear fusion. In this paper, three articles concerning ball lightning and the related phenomenon of large ball lightning are combined to provide insight into this rarely glimpsed occurrence.

  7. Cloud-to-Ground Lightning Downwind of the 2002 Hayman Forest Fire in Colorado

    E-Print Network [OSTI]

    Rutledge, Steven

    to climatology, and showed environmental differences that are associated with enhanced +CG lightning. Thus, our findings provide only mixed support for the idea that smoke aerosols impact CG polarity. 2 #12 with smoke aerosol advected northward from fires that burned in southern Mexico during this time. Furthermore

  8. Enlightening lightning! Producing and directing a multimedia planetarium show 

    E-Print Network [OSTI]

    Fowler, Sarah Marie

    2005-02-17

    of storms and lightning. Following is the list of the questions we chose from Understanding Lightning. 1. Why did Benjamin Franklin fly the kite? 2. How does a lightning rod work? 3. How many people are killed by lightning each year? 4. What..., family watching weather and planning hike Lightning mentioned in forecast Why did Benjamin Franklin fly the kite? Elementary Electrostatics Hiking in the park, see lightning damaged tree How does lightning damage trees...

  9. Cloud-to-ground lightning downwind of the 2002 Hayman forest fire in Timothy J. Lang and Steven A. Rutledge

    E-Print Network [OSTI]

    Rutledge, Steven

    Cloud-to-ground lightning downwind of the 2002 Hayman forest fire in Colorado Timothy J. Lang February 2006. [1] The Hayman forest fire occurred near Denver, burning $138,000 acres during 8 June­2 July forest fire in Colorado, Geophys. Res. Lett., 33, L03804, doi:10.1029/2005GL024608. 1. Introduction [2

  10. Changes in measured lightning return stroke peak current after the 1994 National Lightning Detection Network upgrade 

    E-Print Network [OSTI]

    Wacker, Robert Scott

    1997-01-01

    Since a comprehensive upgrade of the US National Lightning Detection Network (NLDN) in 1994, the mean peak current of detected cloud-to-ground (CG) lightning flashes has decreased, the number of detected flashes has ...

  11. A comparative analysis of total lightning observations and cloud-to-ground lightning observations in the Southeastern United States region 

    E-Print Network [OSTI]

    Hugo, Keith Michael

    1998-01-01

    A comparison was performed employing lightning data aphics. collected by the Optical Transient Detector (OTD) satellite and the National Lightning Detection Network (NLDN). The feasibility of using total lightning flash data, both intracloud (IC...

  12. Lightning Ball (Ball Lightning) Created by Thunder, Shock-Wave

    E-Print Network [OSTI]

    Domokos Tar

    2010-07-20

    Following his observation the author has described in the papers [1] to [4] the formation of a Lightning Ball (LB)with the help of a new theory of symmetry breaking of the vortex ring. In the frame of this theory he emphasizes the primordial rule of the thunder (shock-wave) during the lightning strike in the creation of the LB. The shock-waves and the sound waves propagate very fast but the subsequent enlargement of the vortex ring (air masses) is very slow. This is the reason why the rotating air ring (cylinder) only appeared some seconds later in the observation because of the great inertia of the system. As a consequence of the stationary Mach shock-waves reflections theory the stable distance of the LB to the ground and its very stable horizontal path, in spite of strong winds and rain can be explained.

  13. Lightning Ball (Ball Lightning) Created by Thunder, Shock-Wave

    E-Print Network [OSTI]

    Tar, Domokos

    2010-01-01

    Following his observation the author has described in the papers [1] to [4] the formation of a Lightning Ball (LB)with the help of a new theory of symmetry breaking of the vortex ring. In the frame of this theory he emphasizes the primordial rule of the thunder (shock-wave) during the lightning strike in the creation of the LB. The shock-waves and the sound waves propagate very fast but the subsequent enlargement of the vortex ring (air masses) is very slow. This is the reason why the rotating air ring (cylinder) only appeared some seconds later in the observation because of the great inertia of the system. As a consequence of the stationary Mach shock-waves reflections theory the stable distance of the LB to the ground and its very stable horizontal path, in spite of strong winds and rain can be explained.

  14. Physical conditions of the ball lightning ejection caused by interaction of electrical discharge with metal and polymer

    E-Print Network [OSTI]

    Emelin, S E; Skvortsov, G E; Bychkov, V L

    2001-01-01

    Physical conditions of formation of the ball lightning with high energy density considered as condensate of heavily excited atoms have been studied. In our approach the ball lightning formation processes is considered as a form of energy-structure self-organi-zation on the base of metastable substance and interchange. We propose different variants of the experimental method to create autonomous formation on the base of the closed capillary discharge allowing to obtain the objects with the life time up to 2s which burn through the foil, explode and can penetrate through the polymer wall without destroying it.

  15. Lightning Safety for You and Your Family

    E-Print Network [OSTI]

    Oklahoma, University of

    information on weather-related deaths to learn how to prevent these tragedies. Many lightning victims say after you hear the last thunder clap. Finally, some victims were struck inside homes or buildings while disabilities. While a small percentage of lightning strike victims die, many survivors must learn to live

  16. The use of Doppler radar to predict cloud-to-ground lightning 

    E-Print Network [OSTI]

    Aclin, Keith Andrew

    1995-01-01

    If the National Weather Service could forecast the occurrences of cloud-toground lightning strikes, it would benefit the authorities that are served by the WSR-88Ds. In this thesis I will examine the WSR-88D level 11 archive ...

  17. Sandia National Laboratories: Lightning Facility

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcoming Release of thePrograms: Center forFacebookFactIon BeamLightning

  18. New mechanism for lightning initiation

    SciTech Connect (OSTI)

    Roussel-Dupre, R.; Buchwald, M.; Gurevich, A. [Lebedev Institute of Physical Sciences, Moscow (Russian Federation)] [and others

    1996-10-01

    This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). To distinguish radio-frequency (rf) signals generated by lightning from the electromagnetic pulse produced by a nuclear explosion, it is necessary to understand the fundamental nature of thunderstorm discharges. The recent debate surrounding the origin of transionospheric pulse pairs (TIPPs) detected by the BLACKBEARD experiment aboard the ALEXIS satellite illustrates this point. We have argued that TIPP events could originate from the upward propagating discharges recently identified by optical images taken from the ground, from airplanes, and from the space shuttle. In addition, the Gamma Ray Observatory (GRO) measurements of x-ray bursts originating from thunderstorms are almost certainly associated with these upward propagating discharges. When taken together, these three measurements point directly to the runaway electron mechanism as the source of the upward discharges. The primary goal of this research effort was to identify the specific role played by the runaway-air-breakdown mechanism in the general area of thunderstorm electricity and in so doing develop lightning models that predict the optical, rf, and x-ray emissions that are observable from space.

  19. Lightning Strikes on Airborne Grounded Systems 

    E-Print Network [OSTI]

    Malinga, Gilbert Aporu

    2014-10-13

    The modeling of lightning strike behavior and estimation of the subsequent electrical discharge is of great practical importance. In this study a complete two-dimensional physics based analytical formulation is presented ...

  20. A model of the ball lightning

    E-Print Network [OSTI]

    Ignatovich, V K

    1992-01-01

    The ball lightning is supposed to be a shock wave of a point explosion frozen with electrostriction forces of the internal strong laser discharge. The life time of the ball with modest parameters is calculated.

  1. A model of the ball lightning

    E-Print Network [OSTI]

    Vladimir K. Ignatovich

    2011-09-05

    The ball lightning is supposed to be a shock wave of a point explosion frozen with electrostriction forces of the internal strong laser discharge. The life time of the ball with modest parameters is calculated.

  2. Total lightning characteristics of ordinary convection 

    E-Print Network [OSTI]

    Motley, Shane Michael

    2009-06-02

    Twenty-two isolated, non-severe, warm season thunderstorms (ordinary thunderstorms) were examined to test possible correlations between three-dimensional lightning flash characteristics and the complex evolution of the ...

  3. Lightning protection system for a wind turbine

    DOE Patents [OSTI]

    Costin, Daniel P. (Chelsea, VT); Petter, Jeffrey K. (Williston, VT)

    2008-05-27

    In a wind turbine (104, 500, 704) having a plurality of blades (132, 404, 516, 744) and a blade rotor hub (120, 712), a lightning protection system (100, 504, 700) for conducting lightning strikes to any one of the blades and the region surrounding the blade hub along a path around the blade hub and critical components of the wind turbine, such as the generator (112, 716), gearbox (708) and main turbine bearings (176, 724).

  4. Lightning Arrestor Connectors Production Readiness

    SciTech Connect (OSTI)

    Marten, Steve; Linder, Kim; Emmons, Jim; Gomez, Antonio; Hasam, Dawud; Maurer, Michelle

    2008-10-20

    The Lightning Arrestor Connector (LAC), part “M”, presented opportunities to improve the processes used to fabricate LACs. The A## LACs were the first production LACs produced at the KCP, after the product was transferred from Pinnellas. The new LAC relied on the lessons learned from the A## LACs; however, additional improvements were needed to meet the required budget, yield, and schedule requirements. Improvement projects completed since 2001 include Hermetic Connector Sealing Improvement, Contact Assembly molding Improvement, development of a second vendor for LAC shells, general process improvement, tooling improvement, reduction of the LAC production cycle time, and documention of the LAC granule fabrication process. This report summarizes the accomplishments achieved in improving the LAC Production Readiness.

  5. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Exploration Basis Phase 1 study for EGS under a DOE grant Notes A look at EGS potential at Lightning Dock prepared by Lightning...

  6. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Farhar, 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  7. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Rafferty, 1997) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  8. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Witcher, 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  9. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Sammel, 1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  10. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Lienau, 1990) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  11. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Callender, 1981) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  12. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Grant, 1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  13. Geographic Information System At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geographic Information System At Lightning Dock Geothermal Area (Getman, 2014) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geographic...

  14. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Smith, 1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  15. Static electricity measurements for lightning warnings -an exploration

    E-Print Network [OSTI]

    Haak, Hein

    Static electricity measurements for lightning warnings - an exploration H. Bloemink De Bilt, 2013 | Internal report; IR 2013-01 #12;#12;Static electricity measurements for lightning warnings - an exploration Version 1.0 Date January 2013 Status Final #12;#12;Static electricity measurements for lightning warnings

  16. Number of lightning discharges causing damage to lightning arrester cables for aerial transmission lines in power systems

    SciTech Connect (OSTI)

    Nikiforov, E. P. [Electric Power Scientific Research Institute (VNIIE), branch of OAO 'NTTs Elektroenergetika' (Russian Federation)

    2009-07-15

    Damage by lightning discharges to lightning arrester cables for 110-175 kV aerial transmission lines is analyzed using data from power systems on incidents with aerial transmission lines over a ten year operating period (1997-2006). It is found that failures of lightning arrester cables occur when a tensile force acts on a cable heated to the melting point by a lightning current. The lightning currents required to heat a cable to this extent are greater for larger cable cross sections. The probability that a lightning discharge will develop decreases as the amplitude of the lightning current increases, which greatly reduces the number of lightning discharges which damage TK-70 cables compared to TK-50 cables. In order to increase the reliability of lightning arrester cables for 110 kV aerial transmission lines, TK-70 cables should be used in place of TK-50 cables. The number of lightning discharges per year which damage lightning arrester cables is lowered when the density of aerial transmission lines is reduced within the territory of electrical power systems. An approximate relationship between these two parameters is obtained.

  17. Planning a Prescribed Burn 

    E-Print Network [OSTI]

    Hanselka, C. Wayne

    2009-04-01

    , the size of the burn, and its impact on wildlife habitat. If you burned using this plan, you would probably never burn rangeland again on purpose because of the risks taken and the potential for disappointing results. Effective planning well in advance...-leaved herbaceous plants other than grass, may look rank (vigorous) and dense enough to burn, but by midwinter they often have broken down. Woody debris and standing dead trees help little in spreading a fire. The grass fuel also needs to be ready at the right...

  18. 428 IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, VOL. 51, NO. 3, AUGUST 2009 Overview of Recent Progress in Lightning

    E-Print Network [OSTI]

    Florida, University of

    /lightning locating systems, light- ning electromagnetic pulse and lightning-induced effects, and protection against lightning-induced effects. Index Terms--Lightning discharge, lightning electromagnetic pulse (LEMP electromagnetic pulse (LEMP) and induced effects; 4) protection against LEMP. The first special issue on lightning

  19. Thermal Gradient Holes At Lightning Dock Geothermal Area (Cunniff...

    Open Energy Info (EERE)

    Thermal Gradient Holes At Lightning Dock Geothermal Area (Cunniff & Bowers, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal...

  20. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Stone, Et Al., 1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  1. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Dahal, Et Al., 2012) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  2. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    At Lightning Dock Geothermal Area (Witcher, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal Literature Review At...

  3. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Elston, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  4. Geophysics, Geology and Geothermal Leasing Status of the Lightning...

    Open Energy Info (EERE)

    Leasing Status of the Lightning Dock KGRA, Animas Valley, New Mexico Author C. Smith Published New Mexico Geological Society Guidebook, 1978 DOI Not Provided Check for DOI...

  5. Geothermal Literature Review At Lightning Dock Geothermal Area...

    Open Energy Info (EERE)

    Geothermal Literature Review At Lightning Dock Geothermal Area (Clemons, Et Al., 1988) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermal...

  6. Direct-Current Resistivity Survey At Lightning Dock Area (Cunniff...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Lightning Dock Area (Cunniff & Bowers, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  7. Direct-Current Resistivity Survey At Lightning Dock Area (Warpinski...

    Open Energy Info (EERE)

    Direct-Current Resistivity Survey At Lightning Dock Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Direct-Current...

  8. Lightning Strikes and Attribution of Climatic Change

    E-Print Network [OSTI]

    Webster, Anthony J

    2015-01-01

    Using lightning strikes as an example, two possible schemes are discussed for the attribution of changes in event frequency to climate change, and estimating the cost associated with them. The schemes determine the fraction of events that should be attributed to climatic change, and the fraction that should be attributed to natural chance. They both allow for the expected increase in claims and the fluctuations about this expected value. Importantly, the attribution fraction proposed in the second of these schemes is necessarily different to that found in epidemiological studies. This ensures that the statistically expected fraction of attributed claims is correctly equal to the expected increase in claims. The analysis of lightning data highlights two particular difficulties with data-driven, as opposed to modeled, attribution studies. The first is the possibility of unknown "confounding" variables that can influence the strike frequency. This is partly accounted for here by considering the influence of temp...

  9. A new Concept of Ball Lightning

    E-Print Network [OSTI]

    Tsintsadze, Levan N

    2008-01-01

    We suggest that the ball lightning (BL) is a weakly ionized gas, in which the electromagnetic radiation can be accumulated through the Bose-Einstein condensation and/or the photon trapping in the plasma density well. We derive the set of equations describing the stability of BL, and show that the BL moving along charged surface becomes unstable. Eventually the instability leads to explosion of BL and release of energy of the trapped photons and/or the Bose-Einstein condensate.

  10. Prescribed Burning Costs: Trends and Influences in the National Forest System1

    E-Print Network [OSTI]

    Prescribed Burning Costs: Trends and Influences in the National Forest System1 David A. Cleaves,2 Service's National Forest System prescribed burning activity and costs are examined. Fuels management officers from 95 National Forests reported costs and acreage burned for 4 types of prescribed fire

  11. Oklahoma Cooperative Extension Service Division of Agricultural Sciences

    E-Print Network [OSTI]

    Balasundaram, Balabhaskar "Baski"

    E-1010 Oklahoma Cooperative Extension Service Division of Agricultural Sciences and Natural Resources Oklahoma State University Oklahoma Prescribed Burning Handbook Oklahoma Prescribed Burning Research Associate, Natural Resource Ecology and Management Oklahoma Prescribed Burning Handbook Oklahoma

  12. Total lightning observations of severe convection over North Texas 

    E-Print Network [OSTI]

    McKinney, Christopher Michael

    2009-05-15

    potential. Total lightning data were obtained from Vaisala Inc.’s Dallas/Fort Worth (D/FW) Lightning Detection and Ranging (LDAR) network. Radar data from two Weather Surveillance Radar – 1988 Doppler (WSR-88D) sites were used for position data...

  13. LIGHTNING EXPOSURE OF WIND TURBINES University of Toronto

    E-Print Network [OSTI]

    Lehn, Peter W.

    LIGHTNING EXPOSURE OF WIND TURBINES Dale Dolan University of Toronto e-mail: dale@ecf.utoronto.ca Abstract This paper applies the electrogeometric model of lightning exposure to a wind turbine to compute. For a typical 45 m wind turbine, the probability of being struck by a downward negative flash, as predicted

  14. Broadband VLF measurements of lightning-induced ionospheric perturbations

    E-Print Network [OSTI]

    Cummer, Steven A.

    2005. [1] Very low frequency (VLF) electromagnetic pulses radiated by lightning are an effective tool with the theoretically predicted ionization changes produced directly by the lightning electromagnetic pulse. Citation over the thunderstorm due to the heating of ionospheric electrons by the electromagnetic pulse (EMP

  15. 2006 ILDC/ILMC Validation of Operational LDS VALIDATION OF AN OPERATIONAL LIGHTNING DETECTION SYSTEM

    E-Print Network [OSTI]

    Haak, Hein

    lightning detection system. Since 1995 KNMI operates a SAFIR (Surveillance et Alerte Foudre par of the lightning data of the SAFIR system. Validation against other operational lightning detection systems2006 ILDC/ILMC Validation of Operational LDS VALIDATION OF AN OPERATIONAL LIGHTNING DETECTION

  16. An improved model of the lightning electromagnetic field interaction with the D-region ionosphere

    E-Print Network [OSTI]

    14 March 2012. [1] We present an improved time-domain model of the lightning electromagnetic pulse. Introduction [2] Lightning discharges produce both an electromagnetic pulse (EMP), due to the rapid lightningAn improved model of the lightning electromagnetic field interaction with the D-region ionosphere R

  17. Observation of Lightning Ball (Ball Lightning): A new phenomenological description of the phenomenon

    E-Print Network [OSTI]

    Tar, Domokos

    2009-01-01

    The author (physicist)has observed the very strange,beautiful and frightening Lightning Ball (LB). He has never forgotten this phenomenon. During his working life he could not devote himself to the problem of LB-formation.Only two years ago as he has been reading different unbelievable models of LB-formation, he decided to work on this problem. By studying the literature and the crucial points of his observation the author succeeded in creating a completely new model of Lightning Ball(LB) and Ball Lightning(BL)-formation based on the symmetry breaking of the hydrodynamic vortex ring.This agrees fully with the observation and overcomes the shortcomings of current models of LB formation. This model provides answers to the questions: Why are LBs so rarely observed,why do BLs in rare cases have such a high energy and how can we generate LB in the laboratory? Moreover the author differentiates between LB and BL, the latter having a high energy and occuring in 5 % of the observations. Keywords: ball lightning, hydr...

  18. Observation of Lightning Ball (Ball Lightning): A new phenomenological description of the phenomenon

    E-Print Network [OSTI]

    Domokos Tar

    2009-10-05

    The author (physicist)has observed the very strange,beautiful and frightening Lightning Ball (LB). He has never forgotten this phenomenon. During his working life he could not devote himself to the problem of LB-formation.Only two years ago as he has been reading different unbelievable models of LB-formation, he decided to work on this problem. By studying the literature and the crucial points of his observation the author succeeded in creating a completely new model of Lightning Ball(LB) and Ball Lightning(BL)-formation based on the symmetry breaking of the hydrodynamic vortex ring.This agrees fully with the observation and overcomes the shortcomings of current models of LB formation. This model provides answers to the questions: Why are LBs so rarely observed,why do BLs in rare cases have such a high energy and how can we generate LB in the laboratory? Moreover the author differentiates between LB and BL, the latter having a high energy and occuring in 5 % of the observations. Keywords: ball lightning, hydrodynamic vortex ring, symmetry breaking, electroluminescence, triboelectrification.

  19. Lightning Dock Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: EnergyLebanonTexas:Hill, Texas:Controls/Sensors Jump to:Lightning

  20. Lightning strokes can probe the ionosphere

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse BergkampCenter (LMI-EFRC) ProximityCenter (LMI-EFRC)LightingLightning

  1. Lightning strokes can probe the ionosphere

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E C H2015 Non-ResidentialLightning

  2. 7, 1733917366, 2007 Biomass burning

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA wet season experiment C. H. Mari a Creative Commons License. Atmospheric Chemistry and Physics Discussions Tracing biomass burning plumes from. Mari (marc@aero.obs-mip.fr) 17339 #12;ACPD 7, 17339­17366, 2007 Biomass burning plumes during the AMMA

  3. 13, 3226932289, 2013 Biomass burning

    E-Print Network [OSTI]

    Dong, Xiquan

    ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern Great Plains T (ACP). Please refer to the corresponding final paper in ACP if available. Biomass burning aerosol Geosciences Union. 32269 #12;ACPD 13, 32269­32289, 2013 Biomass burning aerosol properties over the Northern

  4. Global reactive nitrogen deposition from lightning NOx A. Shepon,1

    E-Print Network [OSTI]

    Gildor, Hezi

    ., 2002]. The anthropogenic perturbation to the nitrogen cycle (i.e., the increased fossil fuel usage of lightning activity [Price and Rind, 1994; Reeve and Toumi, 1999], creating more available nitrogen compounds

  5. Sandia Lightning Early Warning Network: Digital-based upgrade

    SciTech Connect (OSTI)

    Boyd, G.M.

    1994-05-01

    This report describes the layout and operation of the recently upgraded Sandia Lightning Early Warning Network, which was upgraded from an analog-based to a digital-based telemetry system.

  6. Geology and geothermal waters of Lightning Dock region, Animas...

    Open Energy Info (EERE)

    Geology and geothermal waters of Lightning Dock region, Animas Valley and Pyramid Mountains, Hidalgo County, New Mexico Jump to: navigation, search OpenEI Reference LibraryAdd to...

  7. Radar Nowcasting of Total Lightning over the Kennedy Space Center 

    E-Print Network [OSTI]

    Seroka, Gregory Nicholas

    2011-08-08

    intracloud (IC) and/or total (IC + CG) lightning. In addition to CG lightning, IC flashes are of great concern to KSC launch operations. Four years (2006-2009) of summer (June, July, August) daytime (about 14-00 Z) Weather Surveillance Radar ? 1988... Page 1 Florida flash density from 1986-95. ......................................................... 3 2 LDAR-I and LDAR-II site locations ........................................................ 13 3 Various estimates of LDAR-I flash...

  8. Ball lightning observation: an objective video-camera analysis report

    E-Print Network [OSTI]

    Sello, Stefano; Paganini, Enrico

    2011-01-01

    In this paper we describe a video-camera recording of a (probable) ball lightning event and both the related image and signal analyses for its photometric and dynamical characterization. The results strongly support the BL nature of the recorded luminous ball object and allow the researchers to have an objective and unique video document of a possible BL event for further analyses. Some general evaluations of the obtained results considering the proposed ball lightning models conclude the paper.

  9. Ball lightning observation: an objective video-camera analysis report

    E-Print Network [OSTI]

    Stefano Sello; Paolo Viviani; Enrico Paganini

    2011-02-18

    In this paper we describe a video-camera recording of a (probable) ball lightning event and both the related image and signal analyses for its photometric and dynamical characterization. The results strongly support the BL nature of the recorded luminous ball object and allow the researchers to have an objective and unique video document of a possible BL event for further analyses. Some general evaluations of the obtained results considering the proposed ball lightning models conclude the paper.

  10. Chemical Burn Secondary to Propofol Extravasation

    E-Print Network [OSTI]

    Sharma, Rahul; Yoshikawa, Hana; Abisaab, Josyann

    2012-01-01

    IN E MERGENCY M EDICINE Chemical Burn Secondary to Propofolof Emergency Medicine Chemical Burn Secondary to Propofol

  11. X-ray Emission from Thunderstorms and Lightning

    ScienceCinema (OSTI)

    Dwyer, Joseph [Florida Institute of Technology, Melbourne, Florida, United States

    2010-01-08

    How lightning is initiated in the relatively low electric fields inside thunderclouds and how it can then propagate for tens of kilometers through virgin air are two of the great unsolved problems in the atmospheric sciences.  Until very recently it was believed that lightning was entirely a conventional discharge, involving only low-energy (a few eV) electrons.  This picture changed completely a few years ago with the discovery of intense x-ray emission from both natural cloud-to-ground lightning and rocket-triggered lightning.  This energetic emission cannot be produced by a conventional discharge, and so the presence of x-rays strongly implies that runaway breakdown plays a role in lightning processes.  During runaway breakdown, electrons are accelerated through air to nearly the speed of light by strong electric fields.  These runaway electrons then emit bremsstrahlung x-rays and gamma-rays during collisions with air.  Indeed, the x-ray and gamma-ray emission produced by runaway breakdown near the tops of thunderstorms is bright enough to be seen from outer space, 600 km away.  As a result, the physics used for decades to describe thunderstorm electrification and lightning discharges is incomplete and needs to be revisited. 

  12. Bending Burning Matches and Crumpling Burning Paper Texas A&M University

    E-Print Network [OSTI]

    Keyser, John

    Bending Burning Matches and Crumpling Burning Paper Zeki Melek Texas A&M University Department burning. Specifically, we can simulate the bending of burning matches, and the folding of burning paper objects. Examples include the upward bending seen in burning matches and the crumpling of burning paper

  13. Variability of CONUS Lightning in 2003–12 and Associated Impacts

    E-Print Network [OSTI]

    Koshak, William J.

    Changes in lightning characteristics over the conterminous United States (CONUS) are examined to support the National Climate Assessment (NCA) program. Details of the variability of cloud-to-ground (CG) lightning characteristics ...

  14. Thunderstorm lightning and radar characteristics: insights on electrification and severe weather forecasting 

    E-Print Network [OSTI]

    Steiger, Scott Michael

    2007-04-25

    Total lightning mapping, along with radar and NLDN cloud-to-ground lightning data, can be used to diagnose the severity of a storm. Analysis of the 13 October 2001 supercell event (Dallas-Fort Worth, Texas), some supercells ...

  15. The Morphology of Eyewall Lightning Outbreaks in Two Category 5 Hurricanes* K. SQUIRES AND S. BUSINGER

    E-Print Network [OSTI]

    Businger, Steven

    The Morphology of Eyewall Lightning Outbreaks in Two Category 5 Hurricanes* K. SQUIRES AND S of lightning outbreaks in the eyewalls of Hurricanes Rita and Katrina, two of the strongest storms in the Atlantic hurricane record. Each hurricane produced eyewall lightning outbreaks during the period of most

  16. Is proportion burned severely related to daily area burned?

    E-Print Network [OSTI]

    burn severity for individual daily areas burned that occurred during 42 large forest fires in central progression, forest fires, infrared perimeter mapping, northern Rockies 1. Introduction Extreme wildfires Yellowstone Fires (Turner et al 1994), the 1997 Indonesian Forest Fires, and the Australian Black Saturday

  17. A possible relationship between Global Warming and Lightning Activity in India during the period 1998-2009

    E-Print Network [OSTI]

    Felix Pereira B.; Priyadarsini G.; T. E. Girish

    2010-12-15

    Lightning activity on a global scale has been studied season wise using satellite data for the period from 1998 to 2009. Lightning activity shows an increasing trend during the period of study which is highly correlated with atmospheric warming. A similar increasing trend of lightning activity is observed in the Indian region during the pre-monsoon season which is correlated with global lightning trends and warming trends of surface temperature in India. Key words: Global warming, lightning activity, Solar cycle changes

  18. Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDidDevelopment Top Scientific Impact SinceService and Repair

  19. Carbon dioxide emission during forest fires ignited by lightning

    E-Print Network [OSTI]

    Pelc, Magdalena

    2009-01-01

    In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

  20. Carbon dioxide emission during forest fires ignited by lightning

    E-Print Network [OSTI]

    Magdalena Pelc; Radoslaw Osuch

    2009-03-31

    In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

  1. On the transmission line model for lightning return stroke representation

    E-Print Network [OSTI]

    Florida, University of

    [Uman and McLain, 1969] has been widely used for lightning electromagnetic pulse (LEMP) calculations of current sources that produce a spherical transverse electromagnetic (TEM) wave in the case of return electromagnetic field structure is non-TEM. INDEX TERMS: 0619 Electromagnetics: Electromagnetic theory; 0684

  2. Characterization of infrasound from lightning J. D. Assink,1

    E-Print Network [OSTI]

    Utrecht, Universiteit

    , high-altitude discharges [Farges et al., 2005; Liszka and Hobara, 2006]. This article will discuss CC] During thunderstorm activity in the Netherlands, electromagnetic and infrasonic signals are emitted due a electromagnetic lightning detection network is successful up to distances of 50 km from the infrasound array

  3. The search for Titan lightning radio emissions G. Fischer1

    E-Print Network [OSTI]

    Gurnett, Donald A.

    the existence of Titan lightning were found. Great care is needed in the interpretation of bursty signals since al. [2006] found no thunder clap recorded by the acoustic sensor and reported the observation of an electric signal at 36 Hz throughout the descent. However, it could not be confirmed if this emission

  4. PRECIPITATION OF RADIATION BELT ELECTRONS BY LIGHTNING-GENERATED

    E-Print Network [OSTI]

    PRECIPITATION OF RADIATION BELT ELECTRONS BY LIGHTNING-GENERATED MAGNETOSPHERICALLY REFLECTING-order model to estimate the L-shell dependence of the precipitation flux of energetic electrons driven by MR L-shell extent) peak in the precipitation signature can result due to the focusing of the whistler

  5. Prescribed Range Burning in Texas 

    E-Print Network [OSTI]

    White, Larry D.; Hanselka, C. Wayne

    2000-04-25

    Prescribed burning is an effective brush management technique for improving pasture accessibility and increasing the production of forage and browse. Fire also suppresses most brush and cactus species. This bulletin discusses how to plan...

  6. Update Direct-Strike Lightning Environment for Stockpile-to-Target Sequence: Supplement LLNL Subcontract #B568621 Lightning Protection at the Yucca Mountain Waste Storage Facility

    SciTech Connect (OSTI)

    Uman, M A

    2008-10-09

    The University of Florida has surveyed all relevant publications reporting lightning damage to metals, metals which could be used as components of storage containers for nuclear waste materials. We show that even the most severe lightning could not penetrate the stainless steel thicknesses proposed for nuclear waste storage casks.

  7. Ball lightning as a possible manifestation of high-temperature superconductivity in Nature

    E-Print Network [OSTI]

    B. L. Birbrair

    2001-02-06

    In the superconducting medium the circular current supported by its own magnetic field can exist giving rise to the possible underlying mechanism for the ball lightning.

  8. Ball lightning as a possible manifestation of high-temperature superconductivity in Nature

    E-Print Network [OSTI]

    Birbrair, B L

    2001-01-01

    In the superconducting medium the circular current supported by its own magnetic field can exist giving rise to the possible underlying mechanism for the ball lightning.

  9. Climatological lightning characteristics of the Southern Rocky and Appalachian Mountain chains, a comparison of two distinct mountain effects 

    E-Print Network [OSTI]

    Phillips, Stephen Edward

    2001-01-01

    This study presents a high-resolution lightning climatology for southern portions of both the Rocky Mountains and the Appalachian Mountains. Data from the National Lightning Detection Network (NLDN) are analyzed to produce maps of average annual...

  10. Chemical burn caused by topical application of garlic under occlusion

    E-Print Network [OSTI]

    Xu, Shuai; Heller, Marissa; Wu, Peggy A; Nambudiri, Vinod E

    2014-01-01

    Number 1 January 2014 Letter Chemical burn caused by topicalan unusually severe case of chemical burn following garlicirritant contact dermatitis, chemical burn, allium sativum

  11. Correction of Lightning Effects on Water Content Reflectometer Soil Moisture Data John S. McCartney* and Jorge G. Zornberg

    E-Print Network [OSTI]

    Zornberg, Jorge G.

    Correction of Lightning Effects on Water Content Reflectometer Soil Moisture Data John S. Mc content measured using WCR (water content reflectometer) probes are susceptible to lightning. Several lightning strikes at the site caused unrealistic shifts in the inferred moisture content (from 0

  12. A stepped leader model for lightning including charge distribution in branched channels

    SciTech Connect (OSTI)

    Shi, Wei; Zhang, Li [School of Electrical Engineering, Shandong University, Jinan 250061 (China); Li, Qingmin, E-mail: lqmeee@ncepu.edu.cn [Beijing Key Lab of HV and EMC, North China Electric Power University, Beijing 102206 (China); State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, Beijing 102206 (China)

    2014-09-14

    The stepped leader process in negative cloud-to-ground lightning plays a vital role in lightning protection analysis. As lightning discharge usually presents significant branched or tortuous channels, the charge distribution along the branched channels and the stochastic feature of stepped leader propagation were investigated in this paper. The charge density along the leader channel and the charge in the leader tip for each lightning branch were approximated by introducing branch correlation coefficients. In combination with geometric characteristics of natural lightning discharge, a stochastic stepped leader propagation model was presented based on the fractal theory. By comparing simulation results with the statistics of natural lightning discharges, it was found that the fractal dimension of lightning trajectory in simulation was in the range of that observed in nature and the calculation results of electric field at ground level were in good agreement with the measurements of a negative flash, which shows the validity of this proposed model. Furthermore, a new equation to estimate the lightning striking distance to flat ground was suggested based on the present model. The striking distance obtained by this new equation is smaller than the value estimated by previous equations, which indicates that the traditional equations may somewhat overestimate the attractive effect of the ground.

  13. TRMM observations of the global relationship between ice water content and lightning

    E-Print Network [OSTI]

    Rutledge, Steven

    TRMM observations of the global relationship between ice water content and lightning Walter A to retrieve ice water content. Citation: Petersen, W. A., H. J. Christian, and S. A. Rutledge (2005), TRMM observations of the global relationship between ice water content and lightning, Geophys. Res. Lett., 32, L

  14. Lightning-Driven Electric and Magnetic Fields Measured in the Stratosphere: Implications for Sprites

    E-Print Network [OSTI]

    Thomas, Jeremy N.

    Lightning-Driven Electric and Magnetic Fields Measured in the Stratosphere: Implications-Driven Electric and Magnetic Fields Measured in the Stratosphere: Implications for Sprites Jeremy Norman Thomas et al., 2004b], in which the lightning-driven electric and magnetic field changes were rare, while

  15. A ground level gamma-ray burst observed in association with rocket-triggered lightning

    E-Print Network [OSTI]

    Florida, University of

    A ground level gamma-ray burst observed in association with rocket-triggered lightning J. R. Dwyer 2004; published 13 March 2004. [1] We report the observation of an intense gamma-ray burst observed lightning channel with gamma-ray energies extending up to more than 10 MeV. The burst consisted of 227

  16. Source altitudes of terrestrial gamma-ray flashes produced by lightning leaders

    E-Print Network [OSTI]

    Pasko, Victor

    ; published 18 April 2012. [1] Terrestrial gamma-ray flashes (TGFs) are energetic photon bursts observed fromSource altitudes of terrestrial gamma-ray flashes produced by lightning leaders Wei Xu,1 Sebastien. Pasko (2012), Source altitudes of terres- trial gamma-ray flashes produced by lightning leaders, Geophys

  17. Broadband very low frequency measurement of D region ionospheric perturbations caused by lightning electromagnetic pulses

    E-Print Network [OSTI]

    Cummer, Steven A.

    electromagnetic pulses Zhenggang Cheng,1 Steven A. Cummer,1 Han-Tzong Su,2 and Rue-Ron Hsu2 Received 10 May 2006 the lightning electromagnetic pulse (EMP) associated with elves or from quasielectrostatic fields associated perturbations caused by lightning electromagnetic pulses, J. Geophys. Res., 112, A06318, doi:10.1029/2006JA

  18. Temporal-spatial modeling of electron density enhancement due to successive lightning strokes

    E-Print Network [OSTI]

    Otago, University of

    (FDTD) model that describes the effect of lightning electromagnetic pulses (EMP) on the ionosphere. Each The electromagnetic pulse (EMP) from lightning has been shown to modify conductivity and electron density in the lower successive EMP pulse interacts with a modified background ionosphere due to the previous pulses, resulting

  19. FROM YEARNING TO BURNING Marshall Rosenbluth

    E-Print Network [OSTI]

    for long pulse burning and nuclear technology studies. There is evidently a huge cost saving in going

  20. PHYSICS OF BURNING PHYSICS INACCESSIBLE TO

    E-Print Network [OSTI]

    ;OUTLINE · Introduction · Three Classes of Burning Plasma Physics inaccessable to contemporary tokamak of inaccessable burning plasma physics · Conclusions FIRE Workshop 2 May 2000 #12;INTRODUCTION · A fusion reactorPHYSICS OF BURNING PLASMAS: PHYSICS INACCESSIBLE TO PRESENT FACILITIES FIRE Physics Workshop May

  1. Burn control study using burning plasma simulation experiments in JT-60U

    E-Print Network [OSTI]

    and heating power through particle heating. ·Burn control has to be performed under this linkage involvingBurn control study using burning plasma simulation experiments in JT-60U H. Takenaga1), Y. Miura1 various physics. This study provides new approach to the burn control study. The linkage is experimentally

  2. Update Direct-Strike Lightning Environment for Stockpile-to-Target Sequence

    SciTech Connect (OSTI)

    Uman, M A; Rakov, V A; Elisme, J O; Jordan, D M; Biagi, C J; Hill, J D

    2008-10-01

    The University of Florida has surveyed all relevant publications reporting lightning characteristics and presents here an up-to-date version of the direct-strike lightning environment specifications for nuclear weapons published in 1989 by R. J. Fisher and M. A. Uman. Further, we present functional expressions for current vs. time, current derivative vs. time, second current derivative vs. time, charge transfer vs. time, and action integral (specific energy) vs. time for first return strokes, for subsequent return strokes, and for continuing currents; and we give sets of constants for these expressions so that they yield approximately the median and extreme negative lightning parameters presented in this report. Expressions for the median negative lightning waveforms are plotted. Finally, we provide information on direct-strike lightning damage to metals such as stainless steel, which could be used as components of storage containers for nuclear waste materials; and we describe UF's new experimental research program to add to the sparse data base on the properties of positive lightning. Our literature survey, referred to above, is included in four Appendices. The following four sections (II, III, IV, and V) of this final report deal with related aspects of the research: Section II. Recommended Direct-Strike Median and Extreme Parameters; Section III. Time-Domain Waveforms for First Strokes, Subsequent Strokes, and Continuing Currents; Section IV. Damage to Metal Surfaces by Lightning Currents; and Section V. Measurement of the Characteristics of Positive Lightning. Results of the literature search used to derive the material in Section II and Section IV are found in the Appendices: Appendix 1. Return Stroke Current, Appendix 2. Continuing Current, Appendix 3. Positive Lightning, and Appendix 4. Lightning Damage to Metal Surfaces.

  3. The effects of lightning and high altitude electromagnetic pulse on power distribution lines

    SciTech Connect (OSTI)

    Uman, M.A.; Rubinstein, M.; Yacoub, Z. [Florida Univ., Gainesville, FL (United States)

    1995-01-01

    We simultaneously recorded the voltages induced by lightning on both ends of an unenergized 448-meter long unenergized electric power line and the lightning vertical electric and horizontal magnetic fields at ground level near the line. The lightning data studied and presented here were due both to cloud lightning and to very close (about 20 m from the line) artificially initiated lightning. For cloud sources, a frequency-domain computer program called EMPLIN was used to calculate induced line voltages as a function of source elevation, angle of incidence, and wave polarization of the radiated cloud discharge pulses in order to compare with the measurements. For very-close lightning, the measured line voltages could be grouped into two categories, those in which multiple, similarly shaped, evenly spaced pulses were observed, which we call oscillatory, and those dominated by a principal pulse with subsidiary oscillations of much smaller amplitude, which we call impulsive. The amplitude of the induced voltage ranged from tens of kilovolts for oscillatory voltages to hundreds of kilovolts for impulsive voltages. A new technique is derived for the calculation of the electromagnetic fields from nearby lightning to ground above an imperfectly conducting ground. This technique was used in conjunction with an existing time domain coupling theory and lightning return stroke model to calculate voltages at either end of the line. The results show fair agreement with the measured oscillatory voltage waveforms if corona is ignored and improved results when corona effects are modeled. The modeling of the impulsive voltage, for which local flashover probably successful. In an attempt to understand better the sources of the line voltages for very close lightning, measurements of the horizontal and vertical electric fields 30 m from triggered lightning were obtained.

  4. Little Black Holes:Dark Matter And Ball Lightning

    E-Print Network [OSTI]

    Mario Rabinowitz

    2002-12-11

    Small,quiescent black holes can be considered as candidates for the missing dark matter of the universe,and as the core energy source of ball lightning.By means of gravitational tunneling,directed radiation is emitted from black holes in a process much attenuated from that of Hawking radiation,P SH, which has proven elusive to detect.Gravitational tunneling emission is similar to electric field emission of electronsfrom a metal in that a second body is involved which lowers the barrier and gives the barrier a finite rather than infinite width.Hawking deals with a single isolated black hole.

  5. The hybrid rich-burn/lean burn engine. Part 2

    SciTech Connect (OSTI)

    Smith, J.A.; Podnar, D.; Meyers, D.P.

    1996-12-31

    Southwest Research Institute (SwRI) has developed a unique engine technology called Hybrid Rich-Burn/Lean-Burn (HRBLB) that capitalizes on the low production of oxides of nitrogen (NO{sub x}) during extremely rich and lean combustion. The HRBLB concept is predicated on simultaneous combustion of extremely rich and lean natural gas-air mixtures in separate cylinders. Rich exhaust products undergo a catalytic water-gas shift reaction to form an intermediate combustible fuel composed of carbon monoxide, water vapor, hydrogen, and carbon dioxide. All of the intermediate fuel is added to lean natural gas-air mixtures in other cylinders to enhance ignitability that would otherwise result in misfire. This paper presents results obtained during the development of a stationary, turbocharged, and intercooled, 18-liter HRBLB engine. Results show that NO{sub x} can be reduced by a factor of 2.5 to 3.5 relative to stock engine emissions at equivalent efficiency. The HRBLB engine has demonstrated corrected NO{sub x} (15% O{sub 2}) levels of 23 ppm at rated load with thermal efficiencies of 35%.

  6. Burn site groundwater interim measures work plan.

    SciTech Connect (OSTI)

    Witt, Jonathan L. (North Wind, Inc., Idaho Falls, ID); Hall, Kevin A. (North Wind, Inc., Idaho Falls, ID)

    2005-05-01

    This Work Plan identifies and outlines interim measures to address nitrate contamination in groundwater at the Burn Site, Sandia National Laboratories/New Mexico. The New Mexico Environment Department has required implementation of interim measures for nitrate-contaminated groundwater at the Burn Site. The purpose of interim measures is to prevent human or environmental exposure to nitrate-contaminated groundwater originating from the Burn Site. This Work Plan details a summary of current information about the Burn Site, interim measures activities for stabilization, and project management responsibilities to accomplish this purpose.

  7. Uniform-burning matrix burner

    DOE Patents [OSTI]

    Bohn, Mark S. (Golden, CO); Anselmo, Mark (Arvada, CO)

    2001-01-01

    Computer simulation was used in the development of an inward-burning, radial matrix gas burner and heat pipe heat exchanger. The burner and exchanger can be used to heat a Stirling engine on cloudy days when a solar dish, the normal source of heat, cannot be used. Geometrical requirements of the application forced the use of the inward burning approach, which presents difficulty in achieving a good flow distribution and air/fuel mixing. The present invention solved the problem by providing a plenum with just the right properties, which include good flow distribution and good air/fuel mixing with minimum residence time. CFD simulations were also used to help design the primary heat exchanger needed for this application which includes a plurality of pins emanating from the heat pipe. The system uses multiple inlet ports, an extended distance from the fuel inlet to the burner matrix, flow divider vanes, and a ring-shaped, porous grid to obtain a high-temperature uniform-heat radial burner. Ideal applications include dish/Stirling engines, steam reforming of hydrocarbons, glass working, and any process requiring high temperature heating of the outside surface of a cylindrical surface.

  8. Radar-Derived Forecasts of Cloud-to-Ground Lightning Over Houston, Texas 

    E-Print Network [OSTI]

    Mosier, Richard Matthew

    2011-02-22

    -derived Products....26 1.6 Thesis Objectives and Hypothesis...........................................................................27 2. DATA AND METHODOLOGY..................................................................................29 2.1 Radar............................................................................................42 2.4.4 Storm Cell Position Forecast............................................................................44 2.5 Lightning Correlation..............................................................................................45 2.6 CG...

  9. Long recovery VLF perturbations associated with lightning M. M. Salut,1

    E-Print Network [OSTI]

    .1029/2012JA017567. 1. Introduction [2] The intense electromagnetic pulse (EMP) radiated from powerful cloud with direct coupling of the lightning electromagnetic energy to the lower ionosphere. Also, it has been shown

  10. Cloud-to-ground lightning-precipitation relationships in the South Central United States 

    E-Print Network [OSTI]

    Sheridan, Scott Christopher

    1995-01-01

    Despite the general coexistence of cloud-to-ground (CG) lightning and precipitation, there have been few studies on the nature of the relationship between these two phenomena. This study endeavors to explore this relationship, ...

  11. The distribution of thunderstorm and lightning parameters over the Eastern Hemisphere for 1972 

    E-Print Network [OSTI]

    Freeman, William Burns

    1974-01-01

    - cially over the oceans, North Africa, Arabia, the Mediterranean Sea, and Southeast China. These were areas of sparse data in the W. M. O. compilation but were covered in this investigation. The tentative, first estimate of the distribution of lightning... discharge on a yearly basis were located over South Africa, the Mediterranean Sea, Arabia, Southeast China, Southeast Asia, and Australia. The occurrence of lightning discharge was shown to follow Sun northward from January to the maximum poleward thrust...

  12. On electromagnetic models of ball lightning with topological structure

    E-Print Network [OSTI]

    Donoso, J M; Trueba, J L

    2003-01-01

    It has been long admitted that a consequence of the virial theorem is that there can be no equilibrium configurations of a system of charges in electromagnetic interaction in the absence of external forces. However, recent results have shown that the virial theorem can not preclude the existence of certain nontrivial equilibrium configurations. Although some of these new results are based on an effective microscopic field theory, they are important for a theory of ball lightning that has been developed by the authors of the present work. Other theoretical results relative to magnetic force-free fields with field aligned currents and self-organized filamentary structures are also found to be relevant for this model.

  13. The Energy Institute Live Green, Burn Clean

    E-Print Network [OSTI]

    Lee, Dongwon

    The Energy Institute Live Green, Burn Clean: Advancing Engines for Renewable Fuels Live Green, Burn Clean: Advancing Engines for Renewable Fuels André Boehman Professor of Fuel Science and Materials College of Earth and Mineral Sciences The Pennsylvania State University André Boehman Professor of Fuel

  14. DEPARTMENT OF ENGINEERING SCIENCE High Pressure Laminar Burning

    E-Print Network [OSTI]

    DEPARTMENT OF ENGINEERING SCIENCE High Pressure Laminar Burning Velocity Measurements S. P data Cellularity Real residuals Results Future plans High Pressure Laminar Burning Velocity temperature 725 K High Pressure Laminar Burning Velocity Measurements October 27, 2008 Page 3 #12;System

  15. Emergency Burn Rehabilitation: Cost, Risk, and Effectiveness1

    E-Print Network [OSTI]

    Emergency Burn Rehabilitation: Cost, Risk, and Effectiveness1 Scott R. Miles, Donald M. Haskins watershed and facilities damage and to recommend and prescribe Emergency Burn Area Rehabilitation (EBAR

  16. Thunderstorm characteristics of cloud-to-ground lightning at the Kennedy Space Center, Florida: a study of lightning initiation signatures as indicated by Doppler radar 

    E-Print Network [OSTI]

    Gremillion, Michael Shane

    1998-01-01

    A sum-nary of lightning characteristics was developed for the NASA Kennedy Space Center (KSC). From-n a 1989-1996 data set, the spatial patterns, temporal patterns, and first stroke mean peak current were analyzed. Forty five thunderstorms were...

  17. Lightning -"When thunder roars..." Nearly 400 people in the United States are struck by lightning each year. On average, 60 people will

    E-Print Network [OSTI]

    Meyers, Steven D.

    may be injured if lightning strikes your car, you are much safer inside a vehicle than outside equipment, do so well before the storm arrives. Avoid contact with plumbing. Do not wash your hands, do not take a shower, do not wash dishes, and do not do laundry. Stay away from windows and doors, and stay

  18. In-fight measurements of energetic radiation from lightning and thunderclouds

    E-Print Network [OSTI]

    Kochkin, P O; de Boer, A; Bardet, M; Boissin, J -F

    2015-01-01

    In the certification procedure aircraft builders carry out so-called icing tests flights, where the zero degree Celsius altitude is deliberately sought and crossed in or under thunderstorms. Airbus also used these flights to test ILDAS, a system aimed to determine lightning severity and attachment points during flight from high speed data on the electric and magnetic field at the aircraft surface. We used this unique opportunity to enhance the ILDAS systems with two x-ray detectors coupled to high speed data recorders in an attempt to determine the x-rays produced by lightning in-situ, with synchronous determination of the lightning current distribution and electric field at the aircraft. Such data are of interest in a study of lightning physics. In addition, the data may provide clues to the x-ray dose for personnel and equipment during flights. The icing campaign ran in April 2014; in six flights we collected data of 61 lightning strikes on an Airbus test aircraft. In this communication we briefly describe ...

  19. Radar Nowcasting of Total Lightning over the Kennedy Space Center GREGORY N. SEROKA,* RICHARD E. ORVILLE, AND COURTNEY SCHUMACHER

    E-Print Network [OSTI]

    Radar Nowcasting of Total Lightning over the Kennedy Space Center GREGORY N. SEROKA,* RICHARD E-derived predictors of total lightning over the Kennedy Space Center (KSC). Four years (2006­ 09) of summer (June houses the Kennedy Space Center (KSC) and its critical daily operations. While examining storms over

  20. 532 IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, VOL. 51, NO. 3, AUGUST 2009 Lightning Electromagnetic Field Coupling to

    E-Print Network [OSTI]

    Florida, University of

    of both the incident lightning electromagnetic pulse (LEMP) and the effects of coupling of this field- mental validation using: 1) reduced-scale setups with LEMP and nuclear electromagnetic pulse (NEMP532 IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, VOL. 51, NO. 3, AUGUST 2009 Lightning

  1. The U.S. Burning Plasma Program C.M. Greenfield

    E-Print Network [OSTI]

    for burning plasma research ­ US Burning Plasma Organization (created 2005): currently 283 registered members

  2. On burning a lump of coal

    E-Print Network [OSTI]

    Ana Alonso-Serrano; Matt Visser

    2015-11-03

    Burning something, (e.g. the proverbial lump of coal, or an encyclopaedia for that matter), in a blackbody furnace leads to an approximately Planck emission spectrum with an average entropy/information transfer of approximately $3.9 \\pm 2.5$ bits per emitted photon. This quantitative and qualitative result depends only on the underlying unitarity of the quantum physics of burning, combined with the statistical mechanics of blackbody radiation. The fact that the utterly standard and unitarity preserving process of burning something (in fact, burning anything) nevertheless *has* an associated entropy/information budget, and the quantitative *size* of that entropy/information budget, is a severely under-appreciated feature of standard quantum statistical physics.

  3. On burning a lump of coal

    E-Print Network [OSTI]

    Alonso-Serrano, Ana

    2015-01-01

    Burning something, (e.g. the proverbial lump of coal, or an encyclopaedia for that matter), in a blackbody furnace leads to an approximately Planck emission spectrum with an average entropy/information transfer of approximately $3.9 \\pm 2.5$ bits per emitted photon. This quantitative and qualitative result depends only on the underlying unitarity of the quantum physics of burning, combined with the statistical mechanics of blackbody radiation. The fact that the utterly standard and unitarity preserving process of burning something (in fact, burning anything) nevertheless *has* an associated entropy/information budget, and the quantitative *size* of that entropy/information budget, is a severely under-appreciated feature of standard quantum statistical physics.

  4. Interactive simulation of fire, burn and decomposition 

    E-Print Network [OSTI]

    Melek, Zeki

    2009-05-15

    This work presents an approach to effectively integrate into one unified modular fire simulation framework the major processes related to fire, namely: a burning process, chemical combustion, heat distribution, decomposition and deformation...

  5. Interactive simulation of fire, burn and decomposition 

    E-Print Network [OSTI]

    Melek, Zeki

    2008-10-10

    This work presents an approach to effectively integrate into one unified modular fire simulation framework the major processes related to fire, namely: a burning process, chemical combustion, heat distribution, decomposition and deformation...

  6. Instrumented tube burns: theoretical and experimental observations

    SciTech Connect (OSTI)

    Yarrington, Cole Davis; Obrey, Stephen J; Foley, Timothy J; Son, Steven F

    2009-01-01

    The advent of widely available nanoscale energetic composites has resulted in a flurry of novel applications. One of these applications is the use of nanomaterials in energetic compositions. In compositions that exhibit high sensitivity to stimulus, these materials are often termed metastable intermolecular composites (MIC). More generally, these compositions are simply called nanoenergetics. Researchers have used many different experimental techniques to analyze the various properties of nanoenergetic systems. Among these various techniques, the confined tube burn is a simple experiment that is capable of obtaining much data related to the combustion of these materials. The purpose of this report is to review the current state of the confined tube burn experiment, including the drawbacks of the technique and possible remedies. As this report is intended to focus on the specific experimental technique, data from many different energetic materials, and experimental configurations will be presented. The qualitative and quantitative data that can be gathered using confined tube burn experiments include burning rates, total impulse, pressure rise rate, and burning rate differences between different detector types. All of these measurements lend insight into the combustion properties and mechanisms of specific nanoenergetics. Finally, certain data indicates a more complicated flow scenario which may need to be considered when developing burn tube models.

  7. Protection characteristics of a Faraday cage compromised by lightning burnthrough.

    SciTech Connect (OSTI)

    Warne, Larry Kevin; Bystrom, Edward; Jorgenson, Roy Eberhardt; Montoya, Sandra L.; Merewether, Kimball O.; Coats, Rebecca Sue; Martinez, Leonard E.; Jojola, John M.

    2012-01-01

    A lightning flash consists of multiple, high-amplitude but short duration return strokes. Between the return strokes is a lower amplitude, continuing current which flows for longer duration. If the walls of a Faraday cage are made of thin enough metal, the continuing current can melt a hole through the metal in a process called burnthrough. A subsequent return stroke can couple energy through this newly-formed hole. This LDRD is a study of the protection provided by a Faraday cage when it has been compromised by burnthrough. We initially repeated some previous experiments and expanded on them in terms of scope and diagnostics to form a knowledge baseline of the coupling phenomena. We then used a combination of experiment, analysis and numerical modeling to study four coupling mechanisms: indirect electric field coupling, indirect magnetic field coupling, conduction through plasma and breakdown through the hole. We discovered voltages higher than those encountered in the previous set of experiments (on the order of several hundreds of volts).

  8. ELMs and the Performance of Burning Plasma Experiments

    E-Print Network [OSTI]

    International Institute of Tech., Pathumthani 12121, Thailand 3SAIC, San Diego, CA 92121, USA IEA Workshop on Burning Plasma Physics and Simulation 4-5 July 2005 #12;Predictive Modeling of Burning Plasmas IEA of burning plasma experiments using static and dynamic pedestal models IEA Workshop on Burning Plasma Physics

  9. Exciton matter sustained by colossal dispersive interactions due to enhanced polarizability: Possible clue to ball lightning

    E-Print Network [OSTI]

    Georgiev, M; Georgiev, Mladen; Singh, Jai

    2005-01-01

    Recently Gilman has pointed out that the material state of a ball lightning is both highly cohesive and flexible. He makes a specific proposal for a cohesive state arising from (colossal) Van-der-Waals attraction between highly polarizable Rydberg atoms produced under a linear lightning. We accept his general suggestions but propose that the colossal Van-der-Waals coupling may also arise from the enhanced polarizability of surrogate molecular clusters, due to the polaron gap narrowing effect. We consider a few illuminating cases and present calculations for the ammonia molecule. Although being unable to identify the exact nature of the surrogate molecules at least for the time-being, we suggest a general scenario of photoexcited vibronic excitons forming a supersaturated surrogate gas phase in which a ball arises as a result of condensation. The orange color of the luminous ball is due to radiative exciton deexcitation and suggests that there may be a unique surrogate material for ball lightning.

  10. Monitoring Soil Erosion on a Burned Site in the Mojave-Great Basin Transition Zone: Final Report for the Jacob Fire Site

    SciTech Connect (OSTI)

    Miller, Julianne DRI; Etyemezian, Vic DRI; Cablk, Mary E. DRI; Shillito, Rose DRI; Shafer, David DOE Grand Junction, Colorado

    2013-06-01

    A historic return interval of 100 years for large fires in the U.S. southwestern deserts is being replaced by one where fires may reoccur as frequently as every 20 to 30 years. The shortened return interval, which translates to an increase in fires, has implications for management of Soil Corrective Action Units (CAUs) and Corrective Action Sites (CASs) for which the Department of Energy, National Nuclear Security Administration Nevada Field Office has responsibility. A series of studies was initiated at uncontaminated analog sites to better understand the possible impacts of erosion and transport by wind and water should contaminated soil sites burn. The first of these studies was undertaken at the Jacob Fire site approximately 12 kilometers (7.5 miles) north of Hiko, Nevada. A lightning-caused fire burned approximately 200 hectares during August 6-8, 2008. The site is representative of a transition between Mojave and Great Basin desert ecoregions on the Nevada National Security Site (NNSS), where the largest number of Soil CAUs/CASs are located. The area that burned at the Jacob Fire site was primarily a Coleogyne ramosissima (blackbrush) and Ephedra nevadensis (Mormon tea) community, also an abundant shrub assemblage in the similar transition zone on the NNSS. This report summarizes three years of measurements after the fire. Seven measurement campaigns at the Jacob Fire site were completed. Measurements were made on burned ridge (upland) and drainage sites, and on burned and unburned sites beneath and between vegetation. A Portable In-Situ Wind Erosion Lab (PI-SWERL) was used to estimate emissions of suspended particles at different wind speeds. Context for these measurements was provided through a meteorological tower that was installed at the Jacob Fire site to obtain local, relevant environmental parameters. Filter samples, collected from the exhaust of the PI-SWERL during measurements, were analyzed for chemical composition. Runoff and water erosion were quantified through a series of rainfall/runoff simulation tests in which controlled amounts of water were delivered to the soil surface in a specified amount of time. Runoff data were collected from understory and interspace soils on burned ridge and drainage areas. Runoff volume and suspended sediment in the runoff were sampled; the particle size distribution of the sediment was determined by laboratory analysis. Several land surface and soil characteristics associated with runoff were integrated by the calculation of site-specific curve numbers. Several vegetation surveys were conducted to assess post-burn recovery. Data from plots in both burned and unburned areas included species identification, counts, and location. Characterization of fire-affected area included measures at both the landscape scale and at specific sites. Although wind erosion measurements indicate that there are seasonal influences on almost all parameters measured, several trends were observed. PI-SWERL measurements indicated the potential for PM10 windblown dust emissions was higher on areas that were burned compared to areas that were not. Among the burned areas, understory soils in drainage areas were the most emissive, and interspace soils along burned ridges were least emissive. By 34 months after the burn (MAB), at the end of the study, emissions from all burned soil sites were virtually indistinguishable from unburned levels. Like the amount of emissions, the chemical signature of the fire (indicated by the EC-Soil ratio) was elevated immediately after the fire and approached pre-burn levels by 24 MAB. Thus, the potential for wind erosion at the Jacob Fire site, as measured by the amount and type of emissions, increased significantly after the fire and returned to unburned levels by 24 MAB. The effect of fire on the potential for water erosion at the Jacob Fire site was more ambiguous. Runoff and sediment from ridge interspace soils and unburned interspace soils were similar throughout the study period. Seldom, if ever, did runoff and sediment occur in burned drainage area soils. Fo

  11. Rare measurements of a sprite with halo event driven by a negative lightning discharge over Argentina

    E-Print Network [OSTI]

    Thomas, Jeremy N.

    Argentina M. J. Taylor,1 M. A. Bailey,1 P. D. Pautet,1 S. A. Cummer,2 N. Jaugey,2 J. N. Thomas,3,4 N. N measurements were made of a mesoscale thunderstorm observed on February 22­23, 2006 over northern Argentina of a sprite with halo event driven by a negative lightning discharge over Argentina, Geophys. Res. Lett., 35

  12. The QBO's influence on lightning production and deep convection in the tropics 

    E-Print Network [OSTI]

    Hernandez, Celina Anne

    2009-05-15

    . THE QBO?S INFLUENCE ON LIGHTING PRODUCTION IN THE TROPICS ................................................................................................................ 10 3.1 Africa... lightning flash densities observed over land (Fig.8). Therefore, this analysis focuses on four land regions: Africa, India, Maritime continent/Australia, and South America. 3.1 Africa West minus east flash density anomalies for DJF (Fig. 9a) show...

  13. Measurements and implications of the relationship between lightning and terrestrial gamma ray flashes

    E-Print Network [OSTI]

    Cummer, Steven A.

    the discovery of short bursts of gamma rays originating from Earth, called terrestrial gamma ray flashes (TGFsMeasurements and implications of the relationship between lightning and terrestrial gamma ray associated with 26 terrestrial gamma ray flashes (TGFs) recorded by the RHESSI satellite over the Caribbean

  14. Polarity and energetics of inner core lightning in three intense North Atlantic hurricanes

    E-Print Network [OSTI]

    Cummer, Steven A.

    Atlantic hurricanes Jeremy N. Thomas,1,2,3 Natalia N. Solorzano,1,3 Steven A. Cummer,4 and Robert H and energetics of lightning within 100 km of the centers (inner core regions) of North Atlantic hurricanes Emily important for hurricane intensity change forecasting. Additionally, we find that the majority of inner core

  15. News & Blogs U.S. Lightning Strikes May Increase 50% Due to Global Warming

    E-Print Network [OSTI]

    Romps, David M.

    News & Blogs U.S. Lightning Strikes May Increase 50% Due to Global Warming By: Dr. Jeff Masters (/blog/JeffMasters/show.html) , 4:04 PM GMT on November 14, 2014 A warmer world will have much more, (http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=2320) the Whitewater- Baldy Complex

  16. Measurement of lightning-induced currents in an experimental coaxial buried cable

    E-Print Network [OSTI]

    Florida, University of

    . Cablecross-section. Cable Shield \\ 1-4 ,,,' Polyethylene Tinned Comer Jacket 1 7 mm diameter EPR lnsulatio of a shielded buried cable, both in the cable shield and in the inner conductor. The horizontal magnetic field in the cable shield and in the inner conductor. Simultaneously, the horizontal magnetic field and the lightning

  17. Impact of lightning on the lower ionosphere of Saturn and possible generation of halos and sprites

    E-Print Network [OSTI]

    Ebert, Ute

    -dimensional model of the electric field and electron density is used to estimate the changes of the local electron , C. Price a a Department of Geophysical, Atmospheric and Planetary Sciences, Tel-Aviv University and find that the conservative estimation of lightning charge moment change 104 to 105 C km could lead

  18. Do biomass burning aerosols intensify drought in equatorial Asia during El Niño?

    E-Print Network [OSTI]

    Tosca, M. G; Randerson, J. T; Zender, C. S; Flanner, M. G; Rasch, P. J

    2010-01-01

    fication of drought-induced biomass burning in Indonesiavariability in global biomass burning emissions from 1997 toChemistry and Physics Do biomass burning aerosols intensify

  19. Correlations between Optical, Chemical and Physical Properties of Biomass Burn Aerosols

    E-Print Network [OSTI]

    2008-01-01

    laboratory measurements of biomass-burning emissions: 1.tar balls: Particles from biomass and biofuel burning, J.Eleuterio (2005), A review of biomass burning emissions part

  20. Biomass burning contribution to black carbon in the Western United States Mountain Ranges

    E-Print Network [OSTI]

    2011-01-01

    and the atmosphere from biomass burning, Climatic Change, 2,Chemistry and Physics Biomass burning contribution to black2011 Y. H. Mao et al. : Biomass burning contribution to

  1. Biomass burning and urban air pollution over the Central Mexican Plateau

    E-Print Network [OSTI]

    2009-01-01

    J. D. Crounse et al. : Biomass burning pollution overChemistry and Physics Biomass burning and urban airprimary anthropogenic and biomass burning organic aerosols

  2. ASSESSMENTOF BURNING-PLASMA PHENOMENA COMPACTIGNITION TOKAMAK

    E-Print Network [OSTI]

    Report+ on ASSESSMENTOF BURNING-PLASMA PHENOMENA . in a COMPACTIGNITION TOKAMAK presented-coil tokamak configurations that would achieve ignition under presently accepted scaling laws. Studies the extent to which these compact tokamak ignition experiments can resolve the technical issue of under

  3. Fusion Power Burn and ..... Steve Cowley

    E-Print Network [OSTI]

    Fusion Power Burn and ..... Steve Cowley UK Atomic Energy Authority and Imperial College to the realisation of fusion energy. 2013 #12;Fusion Today ­ questions? · "Fast Track to Fusion" ­ clear message. -- EFDA roadmap ­ clear message · US position ­ unclear, contradicts EU? -- FESAC panels 10 year plan

  4. Boundary Plasma Issues in Burning Plasma Science

    E-Print Network [OSTI]

    Pitcher, C. S.

    impurity production 4. screening of impurities · why a burning plasma experiment? · BP contribution impurity production, high Zeff (not desirable mode of operation ) #12;···· we know a lot more now than helium ash - induce SOL flow towards divertor - control density · helium exhaust time, i.e. He , limited

  5. Boundary Plasma Issues in Burning Plasma Science

    E-Print Network [OSTI]

    impurity production 4. screening of impurities 5. burning plasma experiment? #12;(1) Wide Dispersal points are swept (BPX), but Tt will be high impurity production, high Zeff (not desirable mode- modes (tight baffling??) · allows efficient pumping to: - remove helium ash - induce SOL flow towards

  6. Boundary Plasma Issues in Burning Plasma Science

    E-Print Network [OSTI]

    Pitcher, C. S.

    impurity production 4. screening of impurities 5. burning plasma experiment? #12;(1) Wide Dispersal if strike points are swept (BPX), but Tt will be high impurity production, high Zeff (not desirable mode pressure for H- modes (tight baffling??) · allows efficient pumping to: - remove helium ash - induce SOL

  7. Life Satisfaction Over the First Five Years Following Burn Injury 

    E-Print Network [OSTI]

    Hoskins, Jessica Lynne

    2012-10-19

    Individuals with burn injuries increasingly survive their injury, but we know little about their psychological outcomes following the injury. This study examines life satisfaction outcomes for 260 individuals who sustained burn injuries and were...

  8. A Comparative Study Of The Poetry Of Fergusson And Burns

    E-Print Network [OSTI]

    Swick, Lena

    1913-01-01

    brewed a peck o' maut" is a good example of Burns's rollicking drinking songs. Other classes of poetry used by the two authors are rhymed epistles, elegies, satires, epigrams. Burns follows Fergusson's example in the use of the rhymed epistles...

  9. Passive Ammonia SCR for Lean Burn SIDI Engines | Department of...

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

    Ammonia SCR for Lean Burn SIDI Engines Passive Ammonia SCR for Lean Burn SIDI Engines Passive NH3 SCR has been demonstrated as a high efficiency and low cost alternative lean NOx...

  10. Low-level convergence and its role in convective intensity and frequency over the Houston lightning and rainfall anomaly 

    E-Print Network [OSTI]

    McNear, Veronica Ann

    2007-09-17

    An increase in the amount of lightning and rainfall over the Houston area, compared to the surrounding rural areas, has been well documented in previous studies. The placement of a Shared Mobile Atmospheric Research and ...

  11. Four photos were stacked together to make this incredible image of lightning over Marysville, Kan., on Sept. 9, 2014.

    E-Print Network [OSTI]

    Romps, David M.

    for more than half of U.S. wildfires, putting pressure on human infrastructure as well as natural digging deeper into the data. To start, Romps made some simple maps: One showed lightning strike data over

  12. A monthly climatological study of cloud-to-ground lightning characteristics throughout the contiguous United States: 1989-1994 

    E-Print Network [OSTI]

    Silver, Alan Corey

    1995-01-01

    The National Lightning Detection Network (NLDN) has been in operation since 1989. The NLDN is currently composed of a mixture of magnetic direction finders (DFs) and time-of-arrival (TOA) sensors which locate cloud-to-ground ...

  13. A study of lightning activity over the warm pool western Pacific Ocean (TOGA-COARE region) for 1993 

    E-Print Network [OSTI]

    Rios, Luis Alberto

    1995-01-01

    The warm pool western Pacific Ocean is an area of the equatorial tropics characterized by strong and frequent convection, and vigorous lightning activity. However, it has been noted by various researchers that the vast oceanic expanses experience...

  14. Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames

    E-Print Network [OSTI]

    Pascucci, Valerio

    of premixed burners capable of stably burning ultra-lean hydrogen-air fuel mixtures. Such burners could

  15. Burning for Improvement of Macartney Rose-Infested Coastal Prairie. 

    E-Print Network [OSTI]

    Gordon, R.A.; Scifres, C.J.

    1977-01-01

    of Macartney rose to season of burning. Pre vious research emphasized the use of herbicides fol lowed by fIre, and winter was arbitrarily chosen for in stallation of burns (12). Therefore, information was needed relative to season of prescribed burning... Environmental conditions, including relative air temperature at 2 meters above ground temperature at 2.54 centimeters deep, and and direction at 2 meters above ground monitored during each burn. the plots were backfired on the leeward side(s) meters...

  16. Height Replacement of Selected Woody Plants Following Burning or Shredding. 

    E-Print Network [OSTI]

    Hamilton, W.T.; Kitchen, L.M.; Scifres, C.J.

    1981-01-01

    Selected Woody Plants Following Burning or Shredding CONTENTS ...................................... Summary . - i ,.z;.., s * ' ............................ a ,, Jntroduction.. v ~ ~ ~ z z . . 4 *- e -- .d 5- . ..... ...... .. * 2 $$escription... of Selected Woody Plants Following Burning or Shredding SUMMARY Woody plant reinvasion of tame pastures and native rangeland is a ' severe problem on the South Texas Plains. Shredding and/or pre- scribed burning may be employed as lowcost methods...

  17. Exploration of the meteorological characteristics leading to the rapid cessation of cloud-to-ground lightning in winter cyclones along the East Coast of the United States 

    E-Print Network [OSTI]

    Demetriades, Nicholas William Snow

    1999-01-01

    . This study shed light on some of the aspens of winter CG lightning during intense East Coast cyclones. However, many more studies are needed within this field....

  18. U.S. BURNING PLASMA ORGANIZATION ACTIVITIES

    SciTech Connect (OSTI)

    Raymond J. Fonck

    2009-08-11

    The national U.S. Burning Plasma Organization (USBPO) was formed to provide an umbrella structure in the U.S. fusion science research community. Its main purpose is the coordination of research activities in the U.S. program relevant to burning plasma science and preparations for participation in the international ITER experiment. This grant provided support for the continuing development and operations of the USBPO in its first years of existence. A central feature of the USBPO is the requirement for broad community participation in and governance of this effort. We concentrated on five central areas of activity of the USBPO during this grant period. These included: 1) activities of the Director and support staff in continuing management and development of the USBPO activity; 2) activation of the advisory Council; 3) formation and initial research activities of the research community Topical Groups; 4) formation of Task Groups to perform specific burning plasma related research and development activities; 5) integration of the USBPO community with the ITER Project Office as needed to support ITER development in the U.S.

  19. New Revelation of Lightning Ball Observation and Proposal for a Nuclear Reactor Fusion Experiment

    E-Print Network [OSTI]

    Domokos Tar

    2009-10-12

    In this paper, the author brings further details regarding his Lightning Ball observation that were not mentioned in the first one (Ref.1-2). Additionally, he goes more into detail as the three forces that are necessary to allow the residual crescent form the hydrodynamic vortex ring to shrink into a sphere.Further topics are the similarities and analogies between the Lightning Ball formation's theory and the presently undertaken Tokamak-Stellarator-Spheromak fusion reactor experiments. A new theory and its experimental realisation are proposed as to make the shrinking of the hot plasma of reactors into a ball possible by means of the so called long range electromagnetic forces. In this way,the fusion ignition temperature could possibly atteined.

  20. New Revelation of Lightning Ball Observation and Proposal for a Nuclear Reactor Fusion Experiment

    E-Print Network [OSTI]

    Tar, Domokos

    2009-01-01

    In this paper, the author brings further details regarding his Lightning Ball observation that were not mentioned in the first one (Ref.1-2). Additionally, he goes more into detail as the three forces that are necessary to allow the residual crescent form the hydrodynamic vortex ring to shrink into a sphere.Further topics are the similarities and analogies between the Lightning Ball formation's theory and the presently undertaken Tokamak-Stellarator-Spheromak fusion reactor experiments. A new theory and its experimental realisation are proposed as to make the shrinking of the hot plasma of reactors into a ball possible by means of the so called long range electromagnetic forces. In this way,the fusion ignition temperature could possibly atteined.

  1. BIOMASS BURNING IN THE AMAZON: LINKS BETWEEN BURNING, SCIAMACHY TRACE GASES, AND AEROSOL AND SURFACE PROPERTIES FROM THE ORAC-AATSR RETRIEVAL

    E-Print Network [OSTI]

    Oxford, University of

    BIOMASS BURNING IN THE AMAZON: LINKS BETWEEN BURNING, SCIAMACHY TRACE GASES, AND AEROSOL@atm.ox.ac.uk AEROSOL AND GAS PROPERTIESSEASONALITY OF BURNING Biomass burning in the Amazon shows strong seasonal in aerosol optical depth (AOD) and effective radius, linked to biomass burning through detected fires. Use

  2. A Ball Lightning Model as a Possible Explanation of Recently Reported Cavity Lights

    SciTech Connect (OSTI)

    Fryberger, David; /SLAC

    2009-08-04

    The salient features of cavity lights, in particular, mobile luminous objects (MLO's), as have been experimentally observed in superconducting accelerator cavities, are summarized. A model based upon standard electromagnetic interactions between a small particle and the 1.5 GHz cavity excitation field is described. This model can explain some features of these data, in particular, the existence of particle orbits without wall contact. While this result is an important success for the model, it is detailed why the model as it stands is incomplete. It is argued that no avenues for a suitable extension of the model through established physics appear evident, which motivates an investigation of a model based upon a more exotic object, ball lightning. As discussed, further motivation derives from the fact that there are significant similarities in many of the qualitative features of ball lightning and MLO's, even though they appear in quite different circumstances and differ in scale by orders of magnitude. The ball lightning model, which incorporates electromagnetic charges and currents, is based on a symmetrized set of Maxwell's equations in which the electromagnetic sources and fields are characterized by a process called dyality rotation. It is shown that a consistent mathematical description of dyality rotation as a physical process can be achieved by adding suitable (phenomenological) current terms to supplement the usual current terms in the symmetrized Maxwell's equations. These currents, which enable the conservation of electric and magnetic charge, are called vacuum currents. It is shown that the proposed ball lightning model offers a good qualitative explanation of the perplexing aspects of the MLO data. Avenues for further study are indicated.

  3. Comments in support of the dipole model of ball lightning (BL)

    E-Print Network [OSTI]

    Soshnikov, V N

    2010-01-01

    The evaluations are presented justifying previously proposed dipole model of ball lightning (BL). The movement and energy supporting the dipole BL are due to the atmospheric electric field. Stability of the BL is due to the fundamental role of energy loss by radiation. An example is presented of calculating the stability of variant of BL. There is also a possible connection of stability BL with a statistical distributions of the atmospheric electric field in time and space.

  4. Measurement and modeling of transfer functions for lightning coupling into the Sago mine.

    SciTech Connect (OSTI)

    Morris, Marvin E.; Higgins, Matthew B.

    2007-04-01

    This report documents measurements and analytical modeling of electromagnetic transfer functions to quantify the ability of cloud-to-ground lightning strokes (including horizontal arc-channel components) to couple electromagnetic energy into the Sago mine located near Buckhannon, WV. Two coupling mechanisms were measured: direct and indirect drive. These transfer functions are then used to predict electric fields within the mine and induced voltages on conductors that were left abandoned in the sealed area of the Sago mine.

  5. Formation mechanism of the atmospheric ball lightning using the triple Beltrami equation

    E-Print Network [OSTI]

    Taveira, A M A; Taveira, Ana Marcia Alves; Sakanaka, Paulo Hiroshi

    2004-01-01

    Ball lightning, also known as fire ball, is a luminous globe which occurs in the course of a thunderstorm. Taking as model of fire ball, the two fluid plasma consisting of electrons and one species ions, and considering that the plasma flow is a finite quantity, we can derive the equation of relaxed energy state, maintaining the helicity constant, in the form of triple Beltramiequations for the magnetic field: s curl x curl x curl x B + p curl x curl x B +q curl xB +r B = 0. Where B is the magnetic field s, p, q, and r are constants to be determined through boundary conditions. This equation is coupled with an equation which describes the hydrodynamic vortex. The problem of the formation of an isolated luminous mass in the sky and the moderate persistence of the resulting form combined with observations of ball lightning describing hollow globes, surface coronas and rapid rotation led to theories depicting ball lightning as a vortex. We explore the solutions of this equation using the method of Chandrasekhar-...

  6. Interim Status Closure Plan Open Burning Treatment Unit Technical Area 16-399 Burn Tray

    SciTech Connect (OSTI)

    Vigil-Holterman, Luciana R.

    2012-05-07

    This closure plan describes the activities necessary to close one of the interim status hazardous waste open burning treatment units at Technical Area (TA) 16 at the Los Alamos National Laboratory (LANL or the Facility), hereinafter referred to as the 'TA-16-399 Burn Tray' or 'the unit'. The information provided in this closure plan addresses the closure requirements specified in the Code of Federal Regulations (CFR), Title 40, Part 265, Subparts G and P for the thermal treatment units operated at the Facility under the Resource Conservation and Recovery Act (RCRA) and the New Mexico Hazardous Waste Act. Closure of the open burning treatment unit will be completed in accordance with Section 4.1 of this closure plan.

  7. Mobilizable RDF/d-RDF burning program

    SciTech Connect (OSTI)

    Niemann, K.; Campbell, J.

    1982-03-01

    The Mobilizable RDF/d-RDF Burning Program was conceived to promote the utilization of refuse-derived fuels (RDF) as a supplement to existing fossil fuel sources in industrial-sized boilers. The program explores the design, development, and eventual construction of densified-RDF (d-RDF) for use in boiler combustion testing as a supplement to stoker coal or wood wastes. The equipment would be mounted on trailers and assembled and operated at preselected sites throughout the country where approximately 750 tons of RDF would be produced and test burned in a local boiler. The equipment, to include a transportable RDF boiler metering and feed system, would then be moved and operated at two to three test sites annually. The program is intended to encourage the construction of permanent resource recovery facilities by involving local waste handling groups in operating the equipment and producing fuel, and potential local fuel users in testing the fuel in their boilers. The Mobilizable Program was developed from two separate tasks. The first task developed the concept behind the program and defined its operational and organizational structure. The second task, a follow-up to the first, was intended principally to finalize test locations, develop equipment designs and specifications, and formalize a management program. This report summarizes the principal findings of both tasks. It identifies the criteria used to identify test locations, outlines the program's management structure, presents design and performance specifications for both the fuel production equipment and boiler fuel feed systems, and provides a detailed evaluation of the parameters involved in burning RDF in industrial-sized boilers. Final conclusions and recommendations identify problem areas encountered in the program, and discuss possible future directions for such a program.

  8. IntelliBurn | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimenMakingBiofuels Jump to: navigation,IntegrysIntelliBurn

  9. BLM Burns District Office | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex AAustria GeothermalInformation BKNStateMountainBoiseBurns

  10. Clean Burn Fuels LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, Alabama (Utility Company) Jump to:New York:ClayBurn Fuels LLC Jump to: navigation,

  11. Category:Burns, OR | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButte County,Camilla, Georgia: Energy014771°,North Dakota:BonnBoulder,Burns, OR

  12. Chemistry of burning the forest floor during the FROSTFIRE experimental burn, interior Alaska, 1999

    E-Print Network [OSTI]

    Neff, Jason

    in interior Alaska, and were analyzed for bulk density, major and trace elements, and organic compounds. Concentrations of carbon, nutrients, and several major and trace elements were significantly altered by the burn: Biogeochemical processes (4805); 1030 Geochemistry: Geochemical cycles (0330); KEYWORDS: combustion, experimental

  13. On the burning of his library, and On medical travel

    E-Print Network [OSTI]

    Bartholin, Thomas

    1961-01-01

    , and ordered his books to be burned by the aediles. According to [the elder] Seneca, Suasoria, ch. 7, Cicero deliberated whether or not to burn his writings, on the promise of Anthony that if he did so he would remain unharmed; for Anthony, inflamed... selves if in the past they spent some hours reading my books. According to Seneca, when by decree of the senate the books of Labienus were burned, Cassius Severus, his close associate, remarked: "Now I who know them by heart must be burned alive/' One...

  14. Reflective Terahertz Imaging for early diagnosis of skin burn severity

    E-Print Network [OSTI]

    TEWARI, PRIYAMVADA

    2013-01-01

    regions of skin, burns, psoriasis, basal cell carcinomas andinto diseased states like psoriasis, eczema, basal celland cancer, conditions like psoriasis, eczema, dermatitis,

  15. Ethanol Effects on Lean-Burn and Stoichiometric GDI Emissions

    Broader source: Energy.gov [DOE]

    Characterized particulate emissions from U.S.-legal stoichiometric GDI and European certified lean-burn GDI vehicles operating on ethanol blends

  16. Modeling Deep Burn TRISO Particle Nuclear Fuel

    SciTech Connect (OSTI)

    Besmann, Theodore M [ORNL; Stoller, Roger E [ORNL; Samolyuk, German D [ORNL; Schuck, Paul C [ORNL; Rudin, Sven [Los Alamos National Laboratory (LANL); Wills, John [Los Alamos National Laboratory (LANL); Wirth, Brian D. [University of California, Berkeley; Kim, Sungtae [University of Wisconsin, Madison; Morgan, Dane [University of Wisconsin, Madison; Szlufarska, Izabela [University of Wisconsin, Madison

    2012-01-01

    Under the DOE Deep Burn program TRISO fuel is being investigated as a fuel form for consuming plutonium and minor actinides, and for greater efficiency in uranium utilization. The result will thus be to drive TRISO particulate fuel to very high burn-ups. In the current effort the various phenomena in the TRISO particle are being modeled using a variety of techniques. The chemical behavior is being treated utilizing thermochemical analysis to identify phase formation/transformation and chemical activities in the particle, including kernel migration. First principles calculations are being used to investigate the critical issue of fission product palladium attack on the SiC coating layer. Density functional theory is being used to understand fission product diffusion within the plutonia oxide kernel. Kinetic Monte Carlo techniques are shedding light on transport of fission products, most notably silver, through the carbon and SiC coating layers. The diffusion of fission products through an alternative coating layer, ZrC, is being assessed via DFT methods. Finally, a multiscale approach is being used to understand thermal transport, including the effect of radiation damage induced defects, in a model SiC material.

  17. A, Science Service Featwe Released upon receipt

    E-Print Network [OSTI]

    of a distant locomo- tive and automobile headlights, or due t o other human agencies. "Ball lightningJHER 1 Mailed July 14, 1932 By Charles Fitzhugh Talman, Authority on Meteoroiogy. ---"JXE FORMS 07! L.IGHTNING of thunderstorms too f a r distant t o be audible. Whether silent glow-like discharges of lightning actually occur

  18. Voltages across assembly joints due to direct-strike lightning currents

    SciTech Connect (OSTI)

    Dinallo, M.S. [Quatro Corp., Albuquerque, NM (United States); Fisher, R.J. [Sandia National Labs., Albuquerque, NM (United States)

    1994-08-01

    An extensive set of direct-strike lightning tests has been carried out on a set of facsimile assembly joints of the kinds employed in the design of nuclear weapon cases. Taken as a whole, the test hardware included all the conceptual design elements that are embodied, either singly or in combination, in any specific assembly joint incorporated into any stockpiled weapon. During the present testing, the effects of all key design parameters on the voltages developed across the interior of the joints were investigated under a range of lightning stroke current parameter values. Design parameter variations included the types and number of joint fasteners, mechanical preload, surface finish tolerance and coatings, and the material from which the joint assembly was fabricated. Variations of the simulated lightning stroke current included amplitude (30-, 100-, and 200-kA peak), rise time, and decay time. The maximum voltage observed on any of the test joints that incorporated proper metal-to-metal surface contact was 65 V. Typical response values were more on the order of 20 V. In order to assess the effect of the presence of a dielectric coating (either intentional or as a result of corrosion) between the mating surfaces of a joint, a special configuration was tested in which the mating parts of the test assembly were coated with a 1-mil-thick dielectric anodizing layer. First strokes to these test assemblies resulted in very narrow voltage spikes of amplitudes up to 900 V. The durations of these spikes were less than 0.1 {mu}s. However, beyond these initial spikes, the voltages typically had amplitudes of up to 400 V for durations of 3 to 5 {mu}s.

  19. A unified radiative magnetohydrodynamics code for lightning-like discharge simulations

    SciTech Connect (OSTI)

    Chen, Qiang, E-mail: cq0405@126.com; Chen, Bin, E-mail: emcchen@163.com; Xiong, Run; Cai, Zhaoyang [National Key Laboratory of Electromagnetic Environment and Electro-optical Engineering, PLA University of Science and Technology, Nanjing 210007 (China)] [National Key Laboratory of Electromagnetic Environment and Electro-optical Engineering, PLA University of Science and Technology, Nanjing 210007 (China); Chen, P. F., E-mail: chenpf@nju.edu.cn [School of Astronomy and Space Science, Nanjing University, Nanjing 210093 (China)

    2014-03-15

    A two-dimensional Eulerian finite difference code is developed for solving the non-ideal magnetohydrodynamic (MHD) equations including the effects of self-consistent magnetic field, thermal conduction, resistivity, gravity, and radiation transfer, which when combined with specified pulse current models and plasma equations of state, can be used as a unified lightning return stroke solver. The differential equations are written in the covariant form in the cylindrical geometry and kept in the conservative form which enables some high-accuracy shock capturing schemes to be equipped in the lightning channel configuration naturally. In this code, the 5-order weighted essentially non-oscillatory scheme combined with Lax-Friedrichs flux splitting method is introduced for computing the convection terms of the MHD equations. The 3-order total variation diminishing Runge-Kutta integral operator is also equipped to keep the time-space accuracy of consistency. The numerical algorithms for non-ideal terms, e.g., artificial viscosity, resistivity, and thermal conduction, are introduced in the code via operator splitting method. This code assumes the radiation is in local thermodynamic equilibrium with plasma components and the flux limited diffusion algorithm with grey opacities is implemented for computing the radiation transfer. The transport coefficients and equation of state in this code are obtained from detailed particle population distribution calculation, which makes the numerical model is self-consistent. This code is systematically validated via the Sedov blast solutions and then used for lightning return stroke simulations with the peak current being 20?kA, 30?kA, and 40?kA, respectively. The results show that this numerical model consistent with observations and previous numerical results. The population distribution evolution and energy conservation problems are also discussed.

  20. Tropical biomass burning smoke plume size, shape, reflectance, and age based on 2001â??2009 MISR imagery of Borneo

    E-Print Network [OSTI]

    Zender, C. S.; Krolewski, A. G.; Tosca, M. G.; Randerson, J. T.

    2012-01-01

    C. S. Zender et al. : Tropical biomass burning smoke plumeslaboratory measurements of biomass-burning emis- sions: 1.aerosol optical depth biomass burning events: a comparison

  1. Tropical biomass burning smoke plume size, shape, reflectance, and age based on 2001-2009 MISR imagery of Borneo

    E-Print Network [OSTI]

    Zender, CS; Krolewski, AG; Tosca, MG; Randerson, JT

    2012-01-01

    C. S. Zender et al. : Tropical biomass burning smoke plumeslaboratory measurements of biomass-burning emis- sions: 1.aerosol optical depth biomass burning events: a comparison

  2. A census of precipitation features in the tropics using TRMM: radar, ice scattering, and lightning observations 

    E-Print Network [OSTI]

    Nesbitt, Stephen William

    1999-01-01

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 39 LIS lightning flashes within 8 km of TPFs . . . 76 40 Flashes per km' TPF area vs. volumetric rainfall in TPFs in Africa, S. America, E. Pacific, and W. Pacific . . . . . . . . . . . . . . . . . . . . . . . . 77 41 Map of all TPFs over... Africa 42 Map of all TPFs with a pixel of PCT & 250 K over Africa . . . . . 43 Map of all TPFs over S. America. . 87 . . . . 88 89 44 Map of all TPFs with a pixel of PCT & 250 K over S. America . . . . . . . . 90 45 Map of all TPFs over the E...

  3. Radiometrics At Lightning Dock Geothermal Area (Deal, Et Al., 1978) | Open

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-b < RAPID‎ |RENERCOEnergy Information Lightning

  4. Thermal Gradient Holes At Lightning Dock Area (Cunniff & Bowers, 2005) |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJ AutomationTexas/WindEnergyOpen Energy Information Lightning

  5. Presented at UFA Burning Plasma Science Workshop II

    E-Print Network [OSTI]

    for a Next Step Experiment in Magnetic Fusion · Compact High Field Approach - General Parameters · Burning for Resolving the Critical Fusion Plasma Science Issues for an Attractive MFE Reactor Burning Plasma Experiment 1, 2001 FIRE Lighting the Way to Fusion A Next Step Option for Magnetic Fusion for the FIRE Team

  6. Stellar Burning Falk Herwig, Alexander Heger, and Frank

    E-Print Network [OSTI]

    Herwig, Falk

    ]. In these objects, a thermonuclear runaway of the helium shell on top of an electron-degenerate core (a young White implications for the production of neutron- rich elements. log Tlog Teffeff Figure 1-- A thermonuclear runaway stellar conditions. We will include a stellar equation of state as well as thermonuclear burning (TN burn

  7. Study of composite cement containing burned oil shale

    E-Print Network [OSTI]

    Dalang, Robert C.

    Study of composite cement containing burned oil shale Julien Ston Supervisors : Prof. Karen properties. SCMs can be by-products from various industries or of natural origin, such as shale. Oil shale correctly, give a material with some cementitious properties known as burned oil shale (BOS). This study

  8. Analysis of Tracer Dispersion During a Prescribed Forest Burn

    E-Print Network [OSTI]

    Collins, Gary S.

    to manage global warming (Wiedinmyer, 2010) As land managers consider increased burning, air quality our understanding of pollutant emission rates associated with prescribed forest burns. Methods Site tracer and pollutant dispersion patterns. Modeling The WindTrax stochastic particle dispersion model

  9. Diagnosis of Aged Prescribed Burning Plumes Impacting an Urban

    E-Print Network [OSTI]

    Zheng, Mei

    Diagnosis of Aged Prescribed Burning Plumes Impacting an Urban Area S A N G I L L E E , * , , H Y November 30, 2007. An unanticipated wind shift led to the advection of plumes from two prescribed burning region should be considered in air quality models (e.g., receptor and emission- based models) to assess

  10. High Pressure Burn Rate Measurements on an Ammonium Perchlorate Propellant

    SciTech Connect (OSTI)

    Glascoe, E A; Tan, N

    2010-04-21

    High pressure deflagration rate measurements of a unique ammonium perchlorate (AP) based propellant are required to design the base burn motor for a Raytheon weapon system. The results of these deflagration rate measurements will be key in assessing safety and performance of the system. In particular, the system may experience transient pressures on the order of 100's of MPa (10's kPSI). Previous studies on similar AP based materials demonstrate that low pressure (e.g. P < 10 MPa or 1500 PSI) burn rates can be quite different than the elevated pressure deflagration rate measurements (see References and HPP results discussed herein), hence elevated pressure measurements are necessary in order understand the deflagration behavior under relevant conditions. Previous work on explosives have shown that at 100's of MPa some explosives will transition from a laminar burn mechanism to a convective burn mechanism in a process termed deconsolidative burning. The resulting burn rates that are orders-of-magnitude faster than the laminar burn rates. Materials that transition to the deconsolidative-convective burn mechanism at elevated pressures have been shown to be considerably more violent in confined heating experiments (i.e. cook-off scenarios). The mechanisms of propellant and explosive deflagration are extremely complex and include both chemical, and mechanical processes, hence predicting the behavior and rate of a novel material or formulation is difficult if not impossible. In this work, the AP/HTPB based material, TAL-1503 (B-2049), was burned in a constant volume apparatus in argon up to 300 MPa (ca. 44 kPSI). The burn rate and pressure were measured in-situ and used to calculate a pressure dependent burn rate. In general, the material appears to burn in a laminar fashion at these elevated pressures. The experiment was reproduced multiple times and the burn rate law using the best data is B = (0.6 {+-} 0.1) x P{sup (1.05{+-}0.02)} where B is the burn rate in mm/s and P is the pressure in units of MPa. Details of the experimental method, results and data analysis are discussed herein and briefly compared to other AP based materials that have been measured in this apparatus.

  11. Turbulent burning rates of methane and methane-hydrogen mixtures

    SciTech Connect (OSTI)

    Fairweather, M. [School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom); Ormsby, M.P.; Sheppard, C.G.W. [School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT (United Kingdom); Woolley, R. [Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD (United Kingdom)

    2009-04-15

    Methane and methane-hydrogen (10%, 20% and 50% hydrogen by volume) mixtures have been ignited in a fan stirred bomb in turbulence and filmed using high speed cine schlieren imaging. Measurements were performed at 0.1 MPa (absolute) and 360 K. A turbulent burning velocity was determined for a range of turbulence velocities and equivalence ratios. Experimental laminar burning velocities and Markstein numbers were also derived. For all fuels the turbulent burning velocity increased with turbulence velocity. The addition of hydrogen generally resulted in increased turbulent and laminar burning velocity and decreased Markstein number. Those flames that were less sensitive to stretch (lower Markstein number) burned faster under turbulent conditions, especially as the turbulence levels were increased, compared to stretch-sensitive (high Markstein number) flames. (author)

  12. Method and apparatus to measure the depth of skin burns

    DOE Patents [OSTI]

    Dickey, Fred M. (Albuquerque, NM); Holswade, Scott C. (Albuquerque, NM)

    2002-01-01

    A new device for measuring the depth of surface tissue burns based on the rate at which the skin temperature responds to a sudden differential temperature stimulus. This technique can be performed without physical contact with the burned tissue. In one implementation, time-dependent surface temperature data is taken from subsequent frames of a video signal from an infrared-sensitive video camera. When a thermal transient is created, e.g., by turning off a heat lamp directed at the skin surface, the following time-dependent surface temperature data can be used to determine the skin burn depth. Imaging and non-imaging versions of this device can be implemented, thereby enabling laboratory-quality skin burn depth imagers for hospitals as well as hand-held skin burn depth sensors the size of a small pocket flashlight for field use and triage.

  13. Local Burn-Up Effects in the NBSR Fuel Element

    SciTech Connect (OSTI)

    Brown N. R.; Hanson A.; Diamond, D.

    2013-01-31

    This study addresses the over-prediction of local power when the burn-up distribution in each half-element of the NBSR is assumed to be uniform. A single-element model was utilized to quantify the impact of axial and plate-wise burn-up on the power distribution within the NBSR fuel elements for both high-enriched uranium (HEU) and low-enriched uranium (LEU) fuel. To validate this approach, key parameters in the single-element model were compared to parameters from an equilibrium core model, including neutron energy spectrum, power distribution, and integral U-235 vector. The power distribution changes significantly when incorporating local burn-up effects and has lower power peaking relative to the uniform burn-up case. In the uniform burn-up case, the axial relative power peaking is over-predicted by as much as 59% in the HEU single-element and 46% in the LEU single-element with uniform burn-up. In the uniform burn-up case, the plate-wise power peaking is over-predicted by as much as 23% in the HEU single-element and 18% in the LEU single-element. The degree of over-prediction increases as a function of burn-up cycle, with the greatest over-prediction at the end of Cycle 8. The thermal flux peak is always in the mid-plane gap; this causes the local cumulative burn-up near the mid-plane gap to be significantly higher than the fuel element average. Uniform burn-up distribution throughout a half-element also causes a bias in fuel element reactivity worth, due primarily to the neutronic importance of the fissile inventory in the mid-plane gap region.

  14. Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI...

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

    Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System Lean-burn SIDI...

  15. Determination of the Burning Characteristics of a Slick of Oil on Water 

    E-Print Network [OSTI]

    Torero, Jose L; Olenick, Stephen M; Garo, Jean P; Vantelon, Jean P

    2003-01-01

    The burning rate of a slick of oil on a water bed is characterized by three distinct processes, ignition, flame spread and burning rate. Although all three processes are important, ignition and burning rate are critical. ...

  16. Ac#vi#es of the US Burning Plasma Organiza#on

    E-Print Network [OSTI]

    ;Goals of the USBPO · Coordinate and advocate US burning plasma (BP) research=ons · USBPO ­ Coordinates US burning plasma research, to advance scien=fic understanding USBPO organizes the US Fusion Energy Science community to support burning plasma

  17. The influence of burning on nitrogen dynamics of a Pan American balsamscale community 

    E-Print Network [OSTI]

    Greene, Thomas Alexander

    1983-01-01

    (Jorgensen and Wells 1971). Crude protein and P content (Old 1969), in vitro digestible organic matter, and ash content (Kucera and Ehrenreich 1962) of regrowth following burning may exceed that found in plants on unburned areas. Christensen (1977) found... phosphate fire retardant. Thus, six treatments (unburned, burned 1980, burned 1981, burned 1982, burned 1980 and 1982, and burned 1981 and 1982) were installed, each with four replications. Each block was fenced. to exclude cattle. Because of delays of 2...

  18. Vegetation response to burning thicketized live oak savannah on the Aransas National Wildlife Refuge 

    E-Print Network [OSTI]

    Kelley, David Mitchell

    1980-01-01

    were more produc- tive than unburned areas based on evaluations for two growing seasons after the fires. Species diversity was increased by burning. Areas burned in the fall supported more diverse grass populations than either unburned areas... or areas burned in the spring. Forage, especially grasses, was apparently more available to grazing animals on burned than unburned areas. Forb production on uplands burned in the fall was five times that of unburned areas and twice that of areas burned...

  19. Physical mechanism and numerical simulation of the inception of the lightning upward leader

    SciTech Connect (OSTI)

    Li Qingmin [Beijing Key Lab of High Voltage and EMC, School of Electric and Electronic Engineering, North China Electric Power University, Beijing 102206 (China) and State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206 (China); Lu Xinchang; Shi Wei; Zhang Li; Zou Liang; Lou Jie [Shandong Provincial Key Lab of UHV Technology and Gas Discharge, School of Electrical Engineering, Shandong University, Jinan 250061 (China)

    2012-12-15

    The upward leader is a key physical process of the leader progression model of lightning shielding. The inception mechanism and criterion of the upward leader need further understanding and clarification. Based on leader discharge theory, this paper proposes the critical electric field intensity of the stable upward leader (CEFISUL) and characterizes it by the valve electric field intensity on the conductor surface, E{sub L}, which is the basis of a new inception criterion for the upward leader. Through numerical simulation under various physical conditions, we verified that E{sub L} is mainly related to the conductor radius, and data fitting yields the mathematical expression of E{sub L}. We further establish a computational model for lightning shielding performance of the transmission lines based on the proposed CEFISUL criterion, which reproduces the shielding failure rate of typical UHV transmission lines. The model-based calculation results agree well with the statistical data from on-site operations, which show the effectiveness and validity of the CEFISUL criterion.

  20. The evolution of total lightning and radar reflectivity characteristics of two mesoscale convective systems over Houston, Texas 

    E-Print Network [OSTI]

    Hodapp, Charles Lee

    2009-05-15

    production of MCSs. The stratiform areas quadruple in size and the mean reflectivity values increase substantially by ~ 6 dB. As the stratiform region matures, VHF source density plots show a lightning pathway that slopes rearward and downward from the back...

  1. Charge transfer and in-cloud structure of large-charge-moment positive lightning strokes in a mesoscale convective system

    E-Print Network [OSTI]

    Cummer, Steven A.

    in a mesoscale convective system Gaopeng Lu,1 Steven A. Cummer,1 Jingbo Li,1 Feng Han,1 Richard J. Blakeslee,2 positive cloud-to-ground (+CG) strokes in a mesoscale convective system. Although no high altitude images of large-charge-moment positive lightning strokes in a mesoscale convective system, Geophys. Res. Lett., 36

  2. Oil/gas separator for installation at burning wells

    DOE Patents [OSTI]

    Alonso, Carol T. (Orinda, CA); Bender, Donald A. (Dublin, CA); Bowman, Barry R. (Livermore, CA); Burnham, Alan K. (Livermore, CA); Chesnut, Dwayne A. (Pleasanton, CA); Comfort, III, William J. (Livermore, CA); Guymon, Lloyd G. (Livermore, CA); Henning, Carl D. (Livermore, CA); Pedersen, Knud B. (Livermore, CA); Sefcik, Joseph A. (Tracy, CA); Smith, Joseph A. (Livermore, CA); Strauch, Mark S. (Livermore, CA)

    1993-01-01

    An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

  3. Oil/gas separator for installation at burning wells

    DOE Patents [OSTI]

    Alonso, C.T.; Bender, D.A.; Bowman, B.R.; Burnham, A.K.; Chesnut, D.A.; Comfort, W.J. III; Guymon, L.G.; Henning, C.D.; Pedersen, K.B.; Sefcik, J.A.; Smith, J.A.; Strauch, M.S.

    1993-03-09

    An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well.

  4. University Services Management Services

    E-Print Network [OSTI]

    into a consolidated data-center and server support team that lowered support costs and reduced or eliminated is that the University be known as much for its service and business innovation as for its high quality research innovative services to assist the units we serve to achieve their goals in a manner consistent with the world

  5. Fuel burn reduction potential from delayed deceleration approaches

    E-Print Network [OSTI]

    Dumont, Jean-Marie, S.M. Massachusetts Institute of Technology

    2012-01-01

    Changing aircraft operational procedures is one strategy that can be used to reduce fuel burn and mitigate environmental impacts of aviation in relatively short timeframes with existing aircraft types. One promising ...

  6. Mirror and Shadow: Social Media in the Burning Man Community

    E-Print Network [OSTI]

    Aveline, Dawn

    2012-01-01

    record. The survey is open to Burners everywhere (as long asBurning Man participants (Burners)? Yes / No 15. If yes,I thank all those anonymous burners who contributed to the

  7. Analyzing and Tracking Burning Structures in Lean Premixed Hydrogen Flames

    E-Print Network [OSTI]

    . To this end, there has been considerable recent interest in the development of premixed burners capable of sta- bly burning ultra-lean hydrogen-air fuel mixtures. Such burners could, for example, be used as one

  8. Burning Rate of Liquid Fuel on Carpet (Porous Media) 

    E-Print Network [OSTI]

    Ma, Tingguang; Olenick, Stephen M; Klassen, Michael S; Roby, Richard J; Torero, Jose L

    2004-01-01

    The occurrence of a liquid fuel burning on carpet has been involved in many incendiary and accidental fires. While the research on a liquid fuel fire on carpet is still limited, much work on porous media has been ...

  9. The Challenge Human activities, such as the burning of fossil

    E-Print Network [OSTI]

    Crowther, Paul

    Sheffield Science Gateway. The Challenge Human activities, such as the burning of fossil fuels oil, gas fields or saline aquifers. Emissions from fossil fuel power stations could then be reduced

  10. Isothermal model of ICF burn with finite alpha range treatment

    E-Print Network [OSTI]

    Galloway, Conner Daniel (Conner Daniel Cross)

    2009-01-01

    A simple model for simulating deuterium tritium burn in inertial confinement fusion capsules is developed. The model, called the Isothermal Rarefaction Model, is zero dimensional (represented as ordinary differential ...

  11. Impact of prescribed burning on Gulf Coast tick populations 

    E-Print Network [OSTI]

    Oldham, Thomas Walter

    1983-01-01

    on adjacent unburned areas. Tick numbers remained lower on burned and unburned areas the second growing season after burning on mesquite- mixedgrass and bunchgrass-annual forb sites. Standing crops of herbaceous vegetation and mulch were reduced following... and unburned plant community . Adult ticks present in the vegetation and mulch layer were initially killed by the heat of the passing fire front. Habitat alterations caused by the fire limited tick numbers until vegetation recovered and senesced to form a...

  12. Gulf Cordgrass Production, Utilization, and Nutritional Value Following Burning

    E-Print Network [OSTI]

    Oefinger, R.D.; Scifres, F.J.

    1977-01-01

    ). Growth characteristics of gulf cordgrass give rise to its apparent adaptability to fire. Regrowth follow ing burning progresses rapidly, thus quickly rendering succulent regrowth acceptable as forage to domestic grazing animals (6). Young regrowth... and species of Acacia) on the uplands to the west. Soil Characteristics Physical and Chemical Components The loamy sand sites, burned in fall 1974 were characterized by a near neutral soil surface, becoming more basic to 30 centimeters deep (Table 1...

  13. Radiochemical Mix Diagnostic in the Presence of Burn

    SciTech Connect (OSTI)

    Hayes, Anna C.

    2014-01-28

    There is a general interest in radiochemical probes of hydrodamicalmix in burning regions of NIF capsule. Here we provide estimates for the production of 13N from mixing of 10B ablator burning hotspot of a capsule. By comparing the 13N signal with x-ray measurements of the ablator mix into the hotspot it should be possible to estimate the chunkiness of this mix.

  14. IMPEE PhD Opportunity Project title: LightFoot PhD A PhD Investigation Lightning Protection of HV Overhead Lines with Non-Ideal

    E-Print Network [OSTI]

    Greenaway, Alan

    IMPEE PhD Opportunity Project title: LightFoot PhD ­ A PhD Investigation Lightning Protection of HV.swingler@hw.ac.uk Abstract LightFoot PhD ­ A PhD Investigation Lightning Protection of HV Overhead Lines with Non-Ideal Tower Footing Resistance funded by SSE. The LightFoot PhD project takes a fresh approach at adding

  15. Ethan Burns (UNH) Anticipatory On-line Planning 1 / 22 Anticipatory On-line Planning

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Anticipatory On-line Planning ­ 1 / 22 Anticipatory On-line Planning Ethan Burns1 Formalization Hindsight Opt. Experiments Conclusion Ethan Burns (UNH) Anticipatory On-line Planning ­ 2 / 22'd s Contributions Formalization Hindsight Opt. Experiments Conclusion Ethan Burns (UNH) Anticipatory On

  16. Student Services Student Services

    E-Print Network [OSTI]

    /Pacific American awareness and education. Resources include: · Academic support programs · Connections with community · Educational and cultural programs/resources · Student organization support · Student leadership in collaboration that maximizes the use of resources and services across the Division, across campus

  17. Failure analysis of rutile sleeves in MC3080 lightning arrestor connectors.

    SciTech Connect (OSTI)

    Kilgo, Alice C.; Monroe, Saundra L.; Watson, Chad Samuel; Ernest, Terry L.

    2006-02-01

    The purpose of this SAND Report is to document efforts in the extraction and failure analyses of sleeve-style Lightning Arrestor Connectors (LACs). Several MC3080 and MC3079 LACs were recovered from the field and tested as part of the Enhanced Surveillance Campaign. A portion of these LACs failed retesting. Terry Ernest (01733), the LAC Component Engineer, provided eleven MC3080 LACs for evaluation where four of the LACs failed IR/DCW and one failed FRB requirements. The extraction of rutile sleeves from failed LACs was required to determine the source of failure. Rutile sleeves associated with connector function failures were examined for cracks, debris as well as any other anomalies which could have caused the LAC to not function properly. Sleeves that failed FRB or that experienced high FRB exhibited high symmetry, smooth surface, long-flow amicon, and slightly over-sized inside diameter. LACs that failed DCW or IR requirements had rutile sleeves that exhibited breakdown tracks.

  18. Comments to support the Dipole Dynamical Model (DDM) of Ball Lightning (BL)

    E-Print Network [OSTI]

    V. N. Soshnikov

    2015-08-13

    I present estimates to justify previously proposed by me heuristic Dipole Dynamical Model (DDM) of Ball Lightning (BL). The movement and energy supplying to the dipole BL are due to the atmospheric electric field. Crucial for the detailed analysis of BL is using the new relation of balance of the force of atmospheric electric field (per unit mass of electron cloud) and dipole forces electrons-ions within BL dipole (per unit mass of BL) as the first necessary condition for the existance of BL as an integer. This model is unique because, unlike existing static models, fundamental condition for the existence of Ball Lightning is its forward motion. The virial theorem limiting BL power does not apply to BL which is not closed system like the Sun or Galaxy systems and is strongly dependent part of the infinitely extended in time and space large system. Stability of BL is due to two free parameters with the fundamental role of thermodynamic non-equilibrium, ionization, recombination and translational movement with energy loss by radiation and also excess volumetric positive charge. Stability of BL is not related to the presence of any external shells. Polarization degree of BL plasma is characterized by polarizability factor {\\gamma}. An example is presented of calculating the stability of option BL. There is also a possible connection of stability BL with statistical distributions of the atmospheric electric field in time and space. Destruction of BL can also occur due to arising kinematical instability at its accelerating (or decelerating) movement. Maximal energy density in BL DDM does not exceed the value Espec<(10(8) - 10(9)) J/m(3). Resulting indefinitely long BL lifetime is also discussed. BL has no outer shell and no any inner rigid microstructure elements.

  19. Comments to support the Dipole Dynamical Model (DDM) of Ball Lightning (BL)

    E-Print Network [OSTI]

    V. N. Soshnikov

    2015-10-03

    I present estimates to justify previously proposed by me heuristic Dipole Dynamical Model (DDM) of Ball Lightning (BL). The movement and energy supplying to the dipole BL are due to the atmospheric electric field. Crucial for the detailed analysis of BL is using the new relation of balance of the force of atmospheric electric field (per unit mass of electron cloud) and dipole forces electrons-ions within BL dipole (per unit mass of BL) as the first necessary condition for the existance of BL as an integer. This model is unique because, unlike existing static models, fundamental condition for the existence of Ball Lightning is its forward motion. The virial theorem limiting BL power does not apply to BL which is not closed system like the Sun or Galaxy systems and is strongly dependent part of the infinitely extended in time and space large system. Stability of BL is due to two free parameters with the fundamental role of thermodynamic non-equilibrium, ionization, recombination and translational movement with energy loss by radiation and also excess volumetric positive charge. Stability of BL is not related to the presence of any external shells. Polarization degree of BL plasma is characterized by polarizability factor {\\gamma}. An example is presented of calculating the stability of an option of BL. There is also a possible connection of stability BL with statistical distributions of the atmospheric electric field in time and space. Destruction of BL can also occur due to arising kinematical instability at its accelerating (or decelerating) movement. Maximal energy density in BL DDM does not exceed the value Espec<(10(8) - 10(9)) J/m(3) decreasing with the growing BL radius. Resulting indefinitely long BL lifetime is also discussed. BL has no outer shell and no any inner rigid or elastic microstructure elements.

  20. Application of Generalized Quantum Hydrodynamics In the Theory of Quantum Soliton's Evolution, Atom Structure and Lightning Ball

    E-Print Network [OSTI]

    Alexeev, Boris V

    2008-01-01

    Quantum solitons are discovered with the help of generalized quantum hydrodynamics (GQH). The solitons have the character of the stable quantum objects in the self consistent electric field. These effects can be considered as explanation of the existence of lightning balls. The delivered theory demonstrates the great possibilities of the generalized quantum hydrodynamics in investigation of the quantum solitons. The paper can be considered also as comments and prolongation of the materials published in the known author`s monograph (Boris V. Alexeev, Generalized Boltzmann Physical Kinetics. Elsevier. 2004). The theory leads to solitons as typical formations in the generalized quantum hydrodynamics. Key words: Foundations of the theory of transport processes; The theory of solitons; Generalized hydrodynamic equations; Foundations of quantum mechanics; The theory of lightning balls. PACS: 67.55.Fa, 67.55.Hc

  1. The Energy Services Provider as Corporate Engineer: A Partnership in Developing a Productive, Sustainable Energy Management Program 

    E-Print Network [OSTI]

    Imel, M.; Gromacki, M.

    2007-01-01

    . Burns & McDonnell (BMcD) is a large, multi-disciplined engineering firm with design-build and energy services capabilities. The firms have worked in the past on process design, environmental, and construction projects....

  2. A, Science Service Featdre Released upon receipt

    E-Print Network [OSTI]

    _LIGHTNING Now that steps have been taken t o c o l l e c t reports of the occurrence of b a l l lightning i with The second case was observed at Greenfield i n August, 1930. A t h n d e r - storm, with vivid lightning t s had been turned on, when she saw playing about the casing of a window (la brass-colored ball, the size

  3. 3A Science Service Feature Released upon receipt

    E-Print Network [OSTI]

    meteorologists have been making praieeworthy efforts t o s i f t all available records of ball lightning i n

  4. -A 8cienco Service Feature Released on receipt

    E-Print Network [OSTI]

    a t ball lightning was the agglomeration of ponderable sub- stance i n a state of great tenuity, strongly

  5. Experiments related to the resuspension of aerosols during hydrogen burns

    SciTech Connect (OSTI)

    Nelson, L.S.; Guay, K.P.

    1987-01-01

    We have performed seven ''add-on'' experiments in two large combustion facilities to investigate the capability of hydrogen burns to remove simulated structural and fission product aerosols previously deposited on small metal discs that have surfaces prototypical of those found in nuclear reactor containments. Our results suggest that hydrogen combustion provides an especially effective mechanism for removal (and, presumably, resuspension) of sedimented aerosols produced in a hypothetical nuclear reactor core-degradation or core-melting accident. The presence of condensing steam does not seem to assure adhesion of sedimented aerosols during hydrogen burns. Differences are exhibited between different surfaces as well as between types of aerosol. In-depth studies will be required to assess the impact exposure of sedimented aerosols to hydrogen burns might have on the radiological source term.

  6. Iron/potassium perchlorate pellet burn rate measurements

    SciTech Connect (OSTI)

    Reed, J.W.; Walters, R.R.

    1995-01-25

    A burn rate test having several advantages for low gas-producing pyrotechnic compacts has been developed. The technique involves use of a high speed video motion analysis system that allows immediate turnaround and produces all required data for rate computation on magnetic tape and becomes immediately available on the display screen. The test technique provides a quick method for material qualification along with data for improved reliability and function. Burn rate data has been obtained for both UPI and Eagle Pitcher Iron/Potassium Perchlorate blends. The data obtained for the UPI blends cover a range of composition, pellet density, and ambient (before ignition) pellet temperature. Burn rate data for the E-P blends were extended to include surface conditions or particle size as a variable parameter.

  7. Range Vegetation Response to Burning Thicketized Live Oak Savannah. 

    E-Print Network [OSTI]

    Scifres, C.J.; Kelly, D.M.

    1979-01-01

    centimeters deep for gravimetric determination of soil water content. Soil textures from the same depths were determined by the hy- drometer method (Bouyoucos, 1962), and pH on a 1:4 slurry (Mortensen, 1965). Post burn standing crop of herbaceous... bluestem tended to in- crease in impom during the second growing sea- f% following W burns. In April 1976, dune paspalum and Heller 'cum accounted or 64 percent of the green grass ding crop on unburned areas (Table 4). Ckdy 12 F ,&ent of green grass...

  8. Communication Support for the U. S. Burning Plasma Organization

    SciTech Connect (OSTI)

    Hegna, Chris [University of Wisconsin] [University of Wisconsin

    2014-02-05

    The role of this DOE grant was to provide administrative and software support for the U. S. Burning Plasma Organization (USBPO). The USBPO is a grassroots organization of fusion plasma scientists that concentrates broadly on issues of interest in burning plasma physics in general with a particular emphasis on the needs of the ITER program. The particular role of this grant was to provide support of the communication needs of the USBPO primarily through the administration and maintenance of the USBPO server, the public USBPO website, e-mail lists and numerous members-only discussion forums and mail lists.

  9. Theory of Antineutrino Monitoring of Burning MOX Plutonium Fuels

    E-Print Network [OSTI]

    A. C. Hayes; H. R. Trellue; Michael Martin Nieto; W. B. WIlson

    2011-10-03

    This letter presents the physics and feasibility of reactor antineutrino monitoring to verify the burnup of plutonium loaded in the reactor as a Mixed Oxide (MOX) fuel. It examines the magnitude and temporal variation in the antineutrino signals expected for different MOX fuels, for the purposes of nuclear accountability and safeguards. The antineutrino signals from reactor-grade and weapons-grade MOX are shown to be distinct from those from burning low enriched uranium. Thus, antineutrino monitoring could be used to verify the destruction of plutonium in reactors, though verifying the grade of the plutonium being burned is found to be more challenging.

  10. Theory of Antineutrino Monitoring of Burning MOX Plutonium Fuels

    E-Print Network [OSTI]

    Hayes, A C; Nieto, Michael Martin; WIlson, W B

    2011-01-01

    This letter presents the physics and feasibility of reactor antineutrino monitoring to verify the burnup of plutonium loaded in the reactor as a Mixed Oxide (MOX) fuel. It examines the magnitude and temporal variation in the antineutrino signals expected for different MOX fuels, for the purposes of nuclear accountability and safeguards. The antineutrino signals from reactor-grade and weapons-grade MOX are shown to be distinct from those from burning low enriched uranium. Thus, antineutrino monitoring could be used to verify the destruction of plutonium in reactors, though verifying the grade of the plutonium being burned is found to be more challenging.

  11. Examination of the Entry to Burn and Burn Control for the ITER 15 MA Baseline and Other Scenarios

    SciTech Connect (OSTI)

    Kesse, Charles E.; Kim, S-H.; Koechl, F.

    2014-09-01

    The entry to burn and flattop burn control in ITER will be a critical need from the first DT experiments. Simulations are used to address time-dependent behavior under a range of possible conditions that include injected power level, impurity content (W, Ar, Be), density evolution, H-mode regimes, controlled parameter (Wth, Pnet, Pfusion), and actuator (Paux, fueling, fAr), with a range of transport models. A number of physics issues at the L-H transition require better understanding to project to ITER, however, simulations indicate viable control with sufficient auxiliary power (up to 73 MW), while lower powers become marginal (as low as 43 MW).

  12. www.facilities.udel.edu GUIDE TO SERVICES

    E-Print Network [OSTI]

    Firestone, Jeremy

    , burning, or natural gas odors; doors that won't open/close or lock/unlock; unusual mechanical noises-routine services are those that are generally discretionary in nature and therefore are charged directly, and airflow metering valves. Changes to existing design are not included. Furniture repairs Classrooms

  13. Thomas F. Burns Deputy Assistant Administrator for Systems

    E-Print Network [OSTI]

    in Redondo Beach, CA, supporting government satellite and ground system projects,including Peacekeeper failures and major milestone readiness. Dr. Burns is the recipient of the NRO Medal of Distinguished control. He enjoys spending time with his family and distance running, having completed over twenty

  14. Burning Plasma Physics -The Next Frontier Three Options

    E-Print Network [OSTI]

    in Magnetic Fusion · Burning Plasma Performance Considerations · Compact High Field Approach - General International Collaboration #12;Dale M. Meade Presented at 6th International Symposium on Fusion Nuclear Technology San Diego, CA April 10, 2002 FIRE Lighting the Way to Fusion for the FIRE Team http

  15. From Pyrolysis Kinetics to Models of Condensed-Phase Burning 

    E-Print Network [OSTI]

    Rein, Guillermo

    The state-of-the-art of fire modelling is currently hindered due to a poor capability to model the burning of solid fuels. Current fire modelling tools provide good predictions of the thermal effects of a fire (e.g. the ...

  16. Reduction of Nitrogen Oxide Emissions for lean Burn Engine Technology

    SciTech Connect (OSTI)

    McGill, R.N.

    1998-08-04

    Lean-burn engines offer the potential for significant fuel economy improvements in cars and trucks, perhaps the next great breakthrough in automotive technology that will enable greater savings in imported petroleum. The development of lean-burn engines, however, has been an elusive goal among automakers because of the emissions challenges associated with lead-burn engine technology. Presently, cars operate with sophisticated emissions control systems that require the engine's air-fuel ratio to be carefully controlled around the stoichiometric point (chemically correct mixture). Catalysts in these systems are called "three-way" catalysts because they can reduce hydrocarbon, carbon monoxide, and nitrogen oxide emissions simultaneously, but only because of the tight control of the air-fuel ratio. The purpose of this cooperative effort is to develop advanced catalyst systems, materials, and necessary engine control algorithms for reducing NOX emissions in oxygen-rich automotive exhaust (as with lean-burn engine technology) to meet current and near-future mandated Clean Air Act standards. These developments will represent a breakthrough in both emission control technology and automobile efficiency. The total project is a joint effort among five national laboratories, together with US CAR. The role of Lockheed-Martin Energy Systems in the total project is two fold: characterization of catalyst performance through laboratory evaluations from bench-scale flow reactor tests to engine laboratory tests of full-scale prototype catalysts, and microstructural characterization of catalyst material before and after test stand and/or engine testing.

  17. ITER:The Future International Burning Plasma Experiment Present Status

    E-Print Network [OSTI]

    ITER5/8/01 ITER:The Future International Burning Plasma Experiment Present Status R. Aymar, ITER/8/01 strategic objective ¥ to establish fusion energy as a real energy option for the future Ð e.g. Òcreating availability and integration of essential fusion technologies Ð test components for a future reactor Ð test

  18. BURNING BURIED SUNSHINE: HUMAN CONSUMPTION OF ANCIENT SOLAR ENERGY

    E-Print Network [OSTI]

    Dukes, Jeffrey

    BURNING BURIED SUNSHINE: HUMAN CONSUMPTION OF ANCIENT SOLAR ENERGY JEFFREY S. DUKES Department of as a vast store of solar energy from which society meets >80% of its current energy needs. Here, using of ancient solar energy decline, humans are likely to use an increasing share of modern solar resources. I

  19. n-Dimensional Gravity Little Black Holes, Dark Matter, and Ball Lightning

    E-Print Network [OSTI]

    Rabinowitz, M

    2001-01-01

    The gravitational field, and radiation from quantized gravitational atoms and little black holes (LBH) are analyzed in n-space, i.e. in all dimensions from 0 to o to develop insights into possible additional compacted dimensions as predicted by hierarchy and string theory. It is shown that the entropy of LBH is significantly greater in higher dimensional space with potential implications to the initial entropy of the universe. A case is made that LBH are the dark matter of the universe, and can manifest themselves as the core energy source of ball lightning (BL). The LBH incidence rate on earth is related to BL occurrence and has the potential of aiding in the determination of the distribution of LBH and hence dark matter in the universe. Examination of LBH interactions with the atmosphere are found to be in accord with observations of BL. Possibilities are explored as to why Hawking radiation has been undetected in over 25 years. An alternate LBH tunneling radiation model is described.

  20. n-Dimensional Gravity: Little Black Holes, Dark Matter, and Ball Lightning

    E-Print Network [OSTI]

    Mario Rabinowitz

    2003-03-30

    The gravitational field, and radiation from quantized gravitational atoms and little black holes (LBH) are analyzed in n-space, i.e. in all dimensions to develop insights into possible additional compacted dimensions as predicted by hierarchy and string theory. It is shown that the entropy of LBH is significantly greater in higher dimensional space with potential implications to the initial entropy of the universe. A case is made that LBH are the dark matter of the universe, and can manifest themselves as the core energy source of ball lightning (BL). The LBH incidence rate on earth is related to BL occurrence and has the potential of aiding in the determination of the distribution of LBH and hence dark matter in the universe. Examination of LBH interactions with the atmosphere are found to be in accord with observations of BL. Possibilities are explored as to why Hawking radiation has been undetected in over 25 years. An alternate LBH tunneling radiation model is described.

  1. Measurements of reactive trace gases and variable O3 formation rates in some South Carolina biomass burning plumes

    E-Print Network [OSTI]

    2013-01-01

    Shetter, R. : Emissions from biomass burning in the Yucatan,for open and domestic biomass burning for use in atmosphericC. : Influence of plumes from biomass burning on atmospheric

  2. Indigenous Services Services for Students

    E-Print Network [OSTI]

    Sinnamon, Gordon J.

    STUDENT SERVICES Indigenous Services Services for Students with Disabilities Learning Skills Distance Studies Continuing Studies Student Success CentreLEARNING SERVICES TEACH ING& DEVELOPM E NTCENTRE collaborative and student- focused efforts make a difference. John Doerksen Vice-Provost (Academic Programs

  3. Activities of the US Burning Plasma Organization Vice-Chair of Council,

    E-Print Network [OSTI]

    is the principal coordinating body for MFE burning plasma research · It exists to advance the scientific to advance burning plasma research · Began with the 2006-7 ITER Design Review ­ US MFE community contributed

  4. header for SPIE use Evolving forest fire burn severity classification algorithms

    E-Print Network [OSTI]

    Fernandez, Thomas

    header for SPIE use Evolving forest fire burn severity classification algorithms for multi, to the classification of forest fire burn severity using Landsat 7 ETM+ multispectral imagery. The details. Keywords: Multispectral imagery, Genetic programming, Supervised classification, Forest fire, Wildfire. 1

  5. SINGULAR LEVI-FLAT REAL ANALYTIC HYPERSURFACES By DANIEL BURNS and XIANGHONG GONG

    E-Print Network [OSTI]

    Gong, Xianghong

    SINGULAR LEVI-FLAT REAL ANALYTIC HYPERSURFACES By DANIEL BURNS and XIANGHONG GONG Abstract. We #12;24 DANIEL BURNS AND XIANGHONG GONG Let M be a real analytic hypersurface defined by r = 0

  6. A numerical investigation into the anomalous slight NOx increase when burning biodiesel; A new (old) theory

    E-Print Network [OSTI]

    Ban-Weiss, George A.; Chen, J.Y.; Buchholz, Bruce A.; Dibble, Robert W.

    2007-01-01

    G. et al, 2005. The Biodiesel Handbook. AOCS Publishing,x Increase When Burning Biodiesel; A New (Old) Theory GeorgeIncrease When Burning Biodiesel; A New (Old) Theory. Fuel

  7. Issues in "Burning Plasma Science" S. J. Zweben, D. S. Darrow

    E-Print Network [OSTI]

    development issues => big issue: local burn control in an AT · Our conclusions · Alternate path #12;Burning, fueling, pumping, non-carbon PFCs, etc, could be done without (or in DD phase of) a BP experiment 2) BP

  8. Developing shrub fire behaviour models in an oceanic climate: Burning in the British Uplands 

    E-Print Network [OSTI]

    Davies, Gwilym Matthew; Legg, Colin; Smith, Adam; MacDonald, Angus

    2006-01-01

    Prescribed burning of moorland vegetation in the UK is used to provide habitat for red grouse, a game bird, and to improve grazing for sheep and deer. The peak time of fire risk corresponds to the normal legal burning ...

  9. Physical and Chemical Characterization of Particulate and Gas phase Emissions from Biomass Burning

    E-Print Network [OSTI]

    Hosseini, Seyedehsan

    2012-01-01

    during the open combustion of biomass in the laboratory, J.J. R. , and Veres, P. : Biomass burning in Siberia andOpen burning of agricultural biomass: Physical and chemical

  10. Effect of inactive impurities on the burning of ICF targets

    SciTech Connect (OSTI)

    Gus'kov, S. Yu. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation); Il'in, D. V.; Sherman, V. E. [St. Petersburg State Engineering Institute (Russian Federation)

    2011-12-15

    The efficiency of thermonuclear burning of the spherical deuterium-tritium (DT) plasma of inertial confinement fusion (ICF) targets in the presence of low-Z impurities (such as lithium, carbon, or beryllium) with arbitrary concentrations is investigated. The effect of impurities produced due to the mixing of the thermonuclear fuel with the material of the structural elements of the target during its compression on the process of target burning is studied, and the possibility of using solid noncryogenic thermonuclear fuels in ICF targets is analyzed. Analytical dependences of the ignition energy and target thermonuclear gain on the impurity concentration are obtained. The models are constructed for homogeneous and inhomogeneous plasmas for the case in which the burning is initiated in the central heated region of the target and then propagates into the surrounding relatively cold fuel. Two possible configurations of an inhomogeneous plasma, namely, an isobaric configuration formed in the case of spark ignition of the target and an isochoric configuration formed in the case of fast ignition, are considered. The results of numerical simulations of the burning of the DT plasma of ICF targets in a wide range of impurity concentrations are presented. The simulations were performed using the TEPA one-dimensional code, in which the thermonuclear burning kinetics is calculated by the Monte Carlo method. It is shown that the strongest negative effect related to the presence of impurities is an increase in the energy of target ignition. It is substantiated that the most promising solid noncryogenic fuel is DT hydride of beryllium (BeDT). The requirements to the plasma parameters at which BeDT can be used as a fuel in noncryogenic ICF targets are determined. Variants of using noncryogenic targets with a solid thermonuclear fuel are proposed.

  11. Daily burned area and carbon emissions from boreal fires in Alaska

    E-Print Network [OSTI]

    Veraverbeke, S; Rogers, BM; Randerson, JT

    2015-01-01

    of burned area and car- bon emission by fire at 450 mestimates of carbon emissions and car- bon consumption with

  12. Major Conclusions of the MFE Study 1. Why a burning plasma Navratil

    E-Print Network [OSTI]

    of scientific maturity that we are ready to undertake the essential step of burning plasma research. · Present

  13. Prediction of burn-on and mould penetration in steel casting using simulation

    E-Print Network [OSTI]

    Beckermann, Christoph

    Prediction of burn-on and mould penetration in steel casting using simulation B. E. Brooks1 , C. Beckermann*1 and V. L. Richards2 Burn-on and penetration defects in steel casting are principally caused burn-on and penetration defect locations as part of a standard casting simulation. The method relies

  14. Ethan Burns (UNH) Heuristic Search for Multi-core 1 / 38 Suboptimal and Anytime Heuristic Search

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Heuristic Search for Multi-core ­ 1 / 38 Suboptimal and Anytime Heuristic Search on Multi-core Machines Ethan Burns1, Seth Lemons1, Wheeler Ruml1 and Rong Zhou2 1 2 [Many thanks to NSF Suboptimal Search Anytime Search Conclusion Ethan Burns (UNH) Heuristic Search for Multi-core ­ 2 / 38

  15. Burn Disaster Response Planning in New York City: Updated Recommendations for Best Practices

    E-Print Network [OSTI]

    Chan, Carri W.

    Burn Disaster Response Planning in New York City: Updated Recommendations for Best Practices Nicole inception in 2006, the New York City (NYC) Task Force for Patients with Burns has continued to develop Plan. (J Burn Care Res 2012;X:000­000) Beginning in 2005, the New York City Department of Health

  16. Predictability of carbon emissions from biomass burning in Indonesia from 1997 to 2006

    E-Print Network [OSTI]

    Field, Robert

    Predictability of carbon emissions from biomass burning in Indonesia from 1997 to 2006 Robert D biomass burning C emissions in Indonesia for 1997­2006, obtained from the Global Fire Emissions Database), Predictability of carbon emissions from biomass burning in Indonesia from 1997 to 2006, J. Geophys. Res., 113, G

  17. Silvicultural Tools Applicable in Forests Burned by a Mixed Severity Fire Regime Russell T. Graham

    E-Print Network [OSTI]

    Fried, Jeremy S.

    Silvicultural Tools Applicable in Forests Burned by a Mixed Severity Fire Regime Russell T. Graham The silvicultural tools applicable for use in forests burned by mixed severity fire regimes are as highly variable of silvicultural tools that can be used in the forests historically burned by mixed fire regimes, their application

  18. PREDICTION OF BURN-ON AND MOLD PENETRATION IN STEEL CASTING USING SIMULATION

    E-Print Network [OSTI]

    Beckermann, Christoph

    in the mold are above the critical temperature, burn-on and penetration defects can be predicted. The method1 PREDICTION OF BURN-ON AND MOLD PENETRATION IN STEEL CASTING USING SIMULATION Brandon E. Brooks1 Engineering, The University of Iowa, Iowa City, Iowa 52242, USA Abstract Burn-on and penetration defects

  19. Contribution of small scale turbulence to burning velocity of flamelets in the thin reaction zone regime

    E-Print Network [OSTI]

    Gülder, Ömer L.

    Contribution of small scale turbulence to burning velocity of flamelets in the thin reaction zone the turbulent burning velocity under the conditions corresponding to the thin reaction zones regime. Approaches turbulence on flam- elet burning velocity. An expression was derived to estimate the contribution of flame

  20. Biomass burning emission inventory with daily resolution: Application to aircraft observations of Asian outflow

    E-Print Network [OSTI]

    Palmer, Paul

    Biomass burning emission inventory with daily resolution: Application to aircraft observations for biomass burning using AVHRR satellite observations of fire activity corrected for data gaps and scan angle biomass burning in SE Asia was a major contributor to the outflow of Asian pollution observed in TRACE

  1. Evolution of biomass burning aerosol properties from an agricultural fire in southern Africa

    E-Print Network [OSTI]

    Highwood, Ellie

    Evolution of biomass burning aerosol properties from an agricultural fire in southern Africa Steven Met Office C-130 within a distinct biomass burning plume during the Southern AFricAn Regional science, and P. R. Buseck, Evolution of biomass burning aerosol properties from an agricultural fire in southern

  2. S_ Science Service Feature Released on receipt

    E-Print Network [OSTI]

    ,LfGHTITING ILLUSIONS Though the existence of ball lightning is generally admitted by scientific authorities, many the lightning h i t s there often is a brilliant flash -- much more This is the 'ball.'brilliant than the streak 7, 1928,1 VHY !El3 TEATHER 1 By Charles Fitzhugh Tal-, Authority or. Meteorology BALL

  3. Burn propagation in a PBX 9501 thermal explosion

    SciTech Connect (OSTI)

    Henson, B. F.; Smilowitz, L.; Romero, J. J.; Sandstrom, M. M.; Asay, B. W.; Schwartz, C.; Saunders, A.; Merrill, F.; Morris, C.; Murray, M. M.; McNeil, W. V.; Marr-Lyon, M.; Rightley, P. M.

    2007-12-12

    We have applied proton radiography to study the conversion of solid density to gaseous combustion products subsequent to ignition of a thermal explosion in PBX 9501. We apply a thermal boundary condition to the cylindrical walls of the case, ending with an induction period at 205 C. We then introduce a laser pulse that accelerates the thermal ignition and synchronizes the explosion with the proton accelerator. We then obtain fast, synchronized images of the evolution of density loss with few microsecond resolution during the approximately 100 microsecond duration of the explosion. We present images of the solid explosive during the explosion and discuss measured rates and assumed mechanisms of burning the role of pressure in this internal burning.

  4. 2 May 2000 1 Burning Plasmas Physics Issues

    E-Print Network [OSTI]

    2 May 2000 1 Burning Plasmas Physics Issues Illustrated by FIRE Simulations W.A. Houlberg ORNL Workshop on Physics Issues for FIRE 1-3 May 2000 Princeton, NJ #12;2 May 2000 2 Outline q WHIST simulations-mode q Conclusions #12;2 May 2000 3 1-1/2-D Time-Dependent Transport Modeling q 1-1/2-D time

  5. Burning tires for fuel and tire pyrolysis: air implications

    SciTech Connect (OSTI)

    Clark, C.; Meardon, K.; Russell, D.

    1991-12-01

    The document was developed in response to increasing inquiries into the environmental impacts of burning waste tires in process equipment. The document provides information on the use of whole, scrap tires and tire-derived-fuel (TDF) as combustion fuel and on the pyrolysis of scrap tires. The use of whole tires and TDF as a primary fuel is discussed for dedicated tire-to-energy facilities. The use of whole tires and TDF as a supplemental fuel is discussed for cement manufacturing plants, electric utilities, pulp and paper mills, and other industrial processes. The focus of the document is on the impact of burning whole tires and TDF on air emissions. Test data are presented and, in most instances, compared with emissions under baseline conditions (no tires or TDF in the fuel). The control devices used in these industries are discussed and, where possible, their effectiveness in controlling emissions from the burning of whole tires or TDF is described. In addition, the report provides information on the processes themselves that use whole tires or TDF, the modifications to the processes that allowed the use of whole tires or TDF, and the operational experiences of several facilities using whole tires or TDF. The economic feasibility of using whole tires and TDF for the surveyed industries is discussed. Finally, contacts for State waste tire programs are presented.

  6. Models of neutron star atmospheres enriched with nuclear burning ashes

    E-Print Network [OSTI]

    Nättilä, Joonas; Kajava, Jari J E; Poutanen, Juri

    2015-01-01

    Low-mass X-ray binaries hosting neutron stars (NS) exhibit thermonuclear (type-I) X-ray bursts, which are powered by unstable nuclear burning of helium and/or hydrogen into heavier elements deep in the NS "ocean". In some cases the burning ashes may rise from the burning depths up to the NS photosphere by convection, leading to the appearance of the metal absorption edges in the spectra, which then force the emergent X-ray burst spectra to shift toward lower energies. These effects may have a substantial impact on the color correction factor $f_c$ and the dilution factor $w$, the parameters of the diluted blackbody model $F_E \\approx w B_E(f_c T_{eff})$ that is commonly used to describe the emergent spectra from NSs. The aim of this paper is to quantify how much the metal enrichment can change these factors. We have developed a new NS atmosphere modeling code, which has a few important improvements compared to our previous code required by inclusion of the metals. The opacities and the internal partition func...

  7. Nuclear fusion in dense matter: Reaction rate and carbon burning

    E-Print Network [OSTI]

    L. R. Gasques; A. V. Afanasjev; E. F. Aguilera; M. Beard; L. C. Chamon; P. Ring; M. Wiescher; D. G. Yakovlev

    2005-06-16

    In this paper we analyze the nuclear fusion rate between equal nuclei for all five different nuclear burning regimes in dense matter (two thermonuclear regimes, two pycnonuclear ones, and the intermediate regime). The rate is determined by Coulomb barrier penetration in dense environments and by the astrophysical S-factor at low energies. We evaluate previous studies of the Coulomb barrier problem and propose a simple phenomenological formula for the reaction rate which covers all cases. The parameters of this formula can be varied, taking into account current theoretical uncertainties in the reaction rate. The results are illustrated for the example of the ^{12}C+^{12}C fusion reaction. This reaction is very important for the understanding of nuclear burning in evolved stars, in exploding white dwarfs producing type Ia supernovae, and in accreting neutron stars. The S-factor at stellar energies depends on a reliable fit and extrapolation of the experimental data. We calculate the energy dependence of the S-factor using a recently developed parameter-free model for the nuclear interaction, taking into account the effects of the Pauli nonlocality. For illustration, we analyze the efficiency of carbon burning in a wide range of densities and temperatures of stellar matter with the emphasis on carbon ignition at densities rho > 10^9 g/cc.

  8. The kinematic and cloud-to-ground lightning structure of the 9-10, June 1998 Red River Mesoscale Convective System 

    E-Print Network [OSTI]

    Santarpia, Joshua

    2001-01-01

    An investigation of the kinematic and electrical properties of the 9-10 June, 1998 Red River Mesoscale Convective System (MCS), as observed by the NOAA P3 Tail Radar and the National Lightning Detection Network, is presented. This system exhibits...

  9. A climatology, synoptic assessment, and thermodynamic evaluation for cloud-to-ground lightning in Georgia: a study for the 1996 Summer Olympics 

    E-Print Network [OSTI]

    Livingston, Eric Scott

    1995-01-01

    of Athens, Georgia based on the thermodynamic variables. At the inland locations, no pattern was found in the spatial distribution of cloud-to-ground lightning: the strike locations were random. At the coastal location, an inland maximum in ground flash...

  10. Voluntary Protection Program Onsite Review, Burns & McDonnell- Facility Engineering Services, LLC- September 2015

    Broader source: Energy.gov [DOE]

    Recertification of FES as a Star Participant in the Department of Energy Voluntary Protection Program.

  11. D. Moreau IEA W60 Burning Plasma Physics and Simulation, Tarragona, July 2005 INTEGRATED REAL-TIME CONTROL

    E-Print Network [OSTI]

    D. Moreau IEA W60 Burning Plasma Physics and Simulation, Tarragona, July 2005 INTEGRATED REAL. Sartori, and many other JET-EFDA Contributors D. Moreau #12;D. Moreau IEA W60 Burning Plasma Physics AT burning plasma integrated control #12;D. Moreau IEA W60 Burning Plasma Physics and Simulation, Tarragona

  12. Topical Area MFE Title: Burning Plasma Science_____________________________________________ Description Fusion energy is released by burning light elements using nuclear reactions which consume mass and

    E-Print Network [OSTI]

    Page 1 Topical Area MFE Title: Burning Plasma Science but higher temperatures and better confinement is required. In magnetic fusion, plasmas are heated-sustained purely by its alpha particle heating. The science of burning plasmas consists of: (1) the physics

  13. The effects of fall and spring burning on water quality and vegetative cover in the Post Oak Savannah of Texas 

    E-Print Network [OSTI]

    Garza, Nick Ernest

    1983-01-01

    assigned one of three treatments; unburned, fall burned and spring burned. Mean runoff tended to be greater from unburned plots than from burned plots although differences were seldom significant. Mean sedi- iv ment export (kg/ha) during the 18 month... study period was not signifi- cantly different between treatments, however, trends would suggest that spring burned plots lost lese soil than did fall burned or unburned plots. The data imply that greater loss of soil occurred during the dry season...

  14. Development of a coal burning pulsating combustor for industrial power

    SciTech Connect (OSTI)

    Zinn, B.T.; Wang, M.R.; Daniel, B.R.

    1983-11-01

    The research conducted under this program investigated the performance characteristics of a previously developed coal burning pulsating combustor whose design is based upon the Rijke tube principles. The combustor consists of a vertical tube opened at both ends with a fuel burning bed located in the middle of its lower half. Coal is supplied to the bed by a rotating auger-type feed system located 1 ft above the bed. Following ignition, the interaction between the combustion process and the combustor flow results in the excitation of high amplitude (up to 165 dB) fundamental, longitudinal acoustic mode oscillations with frequencies in the range 75 to 90 Hz in the combustor. Maximum amplitudes occurred near stoichiometric air/fuel ratio operation, suggesting that systems utilizing the developed combustor should possess high thermal efficiencies, as they could operate with relatively litle excess air. Both bituminous and subbituminous coals with sizes in the range 1/4'' to 1/2'' were burned in the developed pulsating combustor. The CO, CO/sub 2/, NO/sub x/, SO/sub 2/, O/sub 2/ and particulates concentrations in the exhaust flow were measured to evaluate the combustor performance. In tests with bituminous coal, combustion efficiencies higher than 95% for coal feed rates in the range 42 to 60 lb/ft/sup 2/hr were achieved with only 13% excess air while NO/sub x/ and SO/sub 2/ concentrations were comparable to those obtained with other steady state combustors. A higher performance was attained in initial tests with subbituminous coal. Finally, pulsating operation was possible under fuel rich conditions suggesting that the developed pulsating combustor could be possibly used as a gasifier.

  15. Corrective Action Investigation Plan for Corrective Action Unit 490: Station 44 Burn Area, Tonopah Test Range, Nevada (with Record of Technical Change No.1)

    SciTech Connect (OSTI)

    U.S. Department of Energy, Nevada Operations Office

    2000-06-09

    This Corrective Action Investigation Plan (CAIP) contains the U.S. Department of Energy, Nevada Operations Office's approach to collect the data necessary to evaluate corrective action alternatives appropriate for the closure of Corrective Action Unit (CAU) 490 under the Federal Facility Agreement and Consent Order. Corrective Active Unit 490 consists of four Corrective Action Sites (CASs): 03-56-001-03BA, Fire Training Area (FTA); RG-56-001-RGBA, Station 44 Burn Area; 03-58-001-03FN, Sandia Service Yard; and 09-54-001-09L2, Gun Propellant Burn Area. These CASs are located at the Tonopah Test Range near Areas 3 and 9. Historically, the FTA was used for training exercises where tires and wood were ignited with diesel fuel. Records indicate that water and carbon dioxide were the only extinguishing agents used during these training exercises. The Station 44 Burn Area was used for fire training exercises and consisted of two wooden structures. The two burn areas (ignition of tires, wood, and wooden structures with diesel fuel and water) were limited to the building footprints (10 ft by 10 ft each). The Sandia Service Yard was used for storage (i.e., wood, tires, metal, electronic and office equipment, construction debris, and drums of oil/grease) from approximately 1979 to 1993. The Gun Propellant Burn Area was used from the 1960s to 1980s to burn excess artillery gun propellant, solid-fuel rocket motors, black powder, and deteriorated explosives; additionally, the area was used for the disposal of experimental explosive items. Based on site history, the focus of the field investigation activities will be to: (1) determine the presence of contaminants of potential concern (COPCs) at each CAS, (2) determine if any COPCs exceed field-screening levels and/or preliminary action levels, and (3) determine the nature and extent of contamination with enough certainty to support selection of corrective action alternatives for each CAS. The scope of this CAIP is to resolve the question of whether or not potentially hazardous wastes were generated at three of the four CASs within CAU 490, and whether or not potentially hazardous and radioactive wastes were generated at the fourth CAS in CAU 490 (CAS 09-54-001-09L2). Suspected CAS-specific COPCs include volatile organic compounds, semivolatile organic compounds, total petroleum hydrocarbons, polychlorinated biphenyls, pesticides, explosives, and uranium and plutonium isotopes. The results of this field investigation will support a defensible evaluation of corrective action alternatives in the corrective action decision document.

  16. Hydrogen Burning in Low Mass Stars Constrains Alternative Gravity Theories

    E-Print Network [OSTI]

    Jeremy Sakstein

    2015-10-30

    The most general scalar-tensor theories of gravity predict a weakening of the gravitational force inside astrophysical bodies. There is a minimum mass for hydrogen burning in stars that is set by the interplay of plasma physics and the theory of gravity. We calculate this for alternative theories of gravity, and find that it is always significantly larger than the general relativity prediction. The observation of several low mass Red Dwarf stars therefore rules out a large class of scalar-tensor gravity theories, and places strong constraints on the cosmological parameters appearing in the effective field theory of dark energy.

  17. Hydrogen Burning in Low Mass Stars Constrains Alternative Gravity Theories

    E-Print Network [OSTI]

    Jeremy Sakstein

    2015-10-20

    The most general scalar-tensor theories of gravity predict a weakening of the gravitational force inside astrophysical bodies. There is a minimum mass for hydrogen burning in stars that is set by the interplay of plasma physics and the theory of gravity. We calculate this for alternative theories of gravity, and find that it is always significantly larger than the general relativity prediction. The observation of several low mass Red Dwarf stars therefore rules out a large class of scalar-tensor gravity theories, and places strong constraints on the cosmological parameters appearing in the effective field theory of dark energy.

  18. A Midsize Tokamak As Fast Track To Burning Plasmas

    SciTech Connect (OSTI)

    E. Mazzucato

    2010-07-14

    This paper presents a midsize tokamak as a fast track to the investigation of burning plasmas. It is shown that it could reach large values of energy gain (?10) with only a modest improvement in confinement over the scaling that was used for designing the International Thermonuclear Experimental Reactor (ITER). This could be achieved by operating in a low plasma recycling regime that experiments indicate can lead to improved plasma confinement. The possibility of reaching the necessary conditions of low recycling using a more efficient magnetic divertor than those of present tokamaks is discussed.

  19. Hydrogen Burning in Low Mass Stars Constrains Alternative Gravity Theories

    E-Print Network [OSTI]

    Sakstein, Jeremy

    2015-01-01

    The most general scalar-tensor theories of gravity predict a weakening of the gravitational force inside astrophysical bodies. There is a minimum mass for hydrogen burning in stars that is set by the interplay of plasma physics and the theory of gravity. We calculate this for alternative theories of gravity, and find that it is always significantly larger than the general relativity prediction. The observation of several low mass Red Dwarf stars therefore rules out a large class of scalar-tensor gravity theories, and places strong constraints on the cosmological parameters appearing in the effective field theory of dark energy.

  20. Lab scientists Burns, Hay named new AAAS Fellows

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResource andfirstDeviceLab captures fiveLabLabLabTheBurns,

  1. Development of a trial burn plan for a mixed waste fluidized bed incinerator

    SciTech Connect (OSTI)

    Kabot, F.J.; Ziegler, D.L.

    1988-01-01

    One of the more important elements of the incinerator permitting process under RCRA is the development of the Trial Burn Plan. This document describes the incinerator and defines the incinerator's process envelope within which the trial burns will be conducted. The data obtained during the trial burns will be the basis for the incinerator's operating permit. This paper describes the development of the Trial Burn Plan for a unique fluidized bed incinerator to be used for the incineration of hazardous and mixed wastes at the Department of Energy's Rocky Flats Plant. It describes a review process of the Trial Burn Plan involving a public comment period that actually preceded the trial burns. 2 refs., 1 fig.

  2. Solar Proton Burning Process Revisited within a Covariant Model Based on the Bethe-Salpeter Formalism

    E-Print Network [OSTI]

    L. P. Kaptari; B. Kämpfer; E. Grosse

    2000-01-14

    A covariant model based on the Bethe-Salpeter formalism is proposed for investigating the solar proton burning process $pp\\to De^+\

  3. Drying and burning wood waste using pulse combustion

    SciTech Connect (OSTI)

    Buckkowski, A.G.; Eng, P.; Kitchen, J.A. [Novadyne Ltd., Ontario (Canada)

    1995-11-01

    Development of an industrial dryer using pulse combustion as a heating source for drying wood waste has continued. Pulse combustion offers the advantage of high heat transfer, efficient combustion, low NOx emissions and a source of kinetic energy for providing a motive force for a drying system. In our experiments, the drying system consists of a pulse combustor and a vertical drying column. The wood waste is injected into the exhaust gases from the combustor where the turbulence created by the pulsations enhance the drying process by reducing the boundary layer thicknesses. The material is further dried in the vertical drying column, then separated from the conveying airstream using a cyclone. The paper discusses two aspects of the drying system. Firstly, the performance of the drying tests are reviewed. Tests with the 1,000,000 BTU/hr test rig have shown that a gas-fired pulse combustion dryer can dry materials such as sawdust and pulverized hog fuel from a moisture content of 50% down to a 30% in a single pass, or further with multiple passes, without scorching or burning. Preliminary figures show that the operating costs of the dryer are reduced due to the kinetic energy created by the pulse combustor which offsets the use of electricity. Secondly, it has been shown that a pulse combustor can be fired with wood waste and thereby providing the potential to displace natural gas or propane as a fuel. The development of the wood burning combustor is reviewed.

  4. Mirror and Shadow: Social Media in the Burning Man Community

    E-Print Network [OSTI]

    Aveline, Dawn

    2012-01-01

    the Reliability of Internet Citations in History Journals,”the Reliability of Internet Citations in History Journals,”history remains accessible through services like the Internet

  5. A d & ~ ~ c eService Featurg Esl-eased upon receipt

    E-Print Network [OSTI]

    tranmission linea by lightning strOke8. , Tho prociso data thus derived appea* t o justify the recent

  6. A,science Service. Fmture Released upon receipt

    E-Print Network [OSTI]

    sudden brief increases of voltage, produced on electric transmission lines by lightning discharges was recently awarded the Longstreth muddl The klydonograph, after installation on a transmission line, requires

  7. -A Science ,Service Feature 7 WHY THE !'iEA.THER P

    E-Print Network [OSTI]

    University explains: BALL LIGHTNING at hand the estimated diameter was between three inches and a foot nature of ball lightning is sowwhat obscure, as few persons have The re- Observed the origin of a ball by others. In one case, it was reported that three SUC- In die- A l l the ball lightning seen was reported

  8. J. A. Snipes, 2nd Workshop on Burning Plasma Science, 1 3 May 2001 San Diego

    E-Print Network [OSTI]

    J. A. Snipes, 2nd Workshop on Burning Plasma Science, 1 ­ 3 May 2001 San Diego H-mode Threshold San Diego Global H-mode Threshold Analysis The global regressions to the H-mode threshold power based in JET. #12;J. A. Snipes, 2nd Workshop on Burning Plasma Science, 1 ­ 3 May 2001 San Diego #12;J. A

  9. Reforestation: Prescribed Burning for Site Preparation http://tfsweb.tamu.edu Page 1 of 1

    E-Print Network [OSTI]

    to reduce hazardous fuels, to prepare sites for seeding and planting, to improve wildlife habitat will be dependent on the goals of the burn. For example, to prepare a site for planting (debris reduc- tion), burns. This technique can be used to prepare a site for planting or to prepare the seedbed for natural regeneration

  10. Near-limit laminar burning velocities of microgravity premixed hydrogen flames

    E-Print Network [OSTI]

    Qiao, Li

    Near-limit laminar burning velocities of microgravity premixed hydrogen flames with chemically of chemically-passive fire suppressants on laminar premixed hydrogen flames were investigated by combined use that provides at least 450 ms of 10À2 g. Near-limit laminar burning velocities were measured for outwardly

  11. Detection of nonlinearities in the dependence of burn area on fuel age and climatic variables

    E-Print Network [OSTI]

    Schoenberg, Frederic Paik (Rick)

    Angeles County in California, USA suggests that the relation- ships between wildfire burn area and fuel1 Detection of nonlinearities in the dependence of burn area on fuel age and climatic variables Suggested running head: Nonlinear dependence on fuel age and climate Frederic Paik Schoenberg Department

  12. PHYSICS DESIGN GUIDELINES FOR ESTIMATING PLASMA PERFORMANCE IN A BURNING PLASMA EXPERIMENT (FIRE)

    E-Print Network [OSTI]

    PHYSICS DESIGN GUIDELINES FOR ESTIMATING PLASMA PERFORMANCE IN A BURNING PLASMA EXPERIMENT (FIRE The physics design guidelines for a next step, high- field tokamak, burning plasma experiment (FIRE, Fusion Ignition Research Experiment) have been developed as an update of the ITER Physics Basis (IPB). The plasma

  13. Microstructural Characterization of High Burn-up Mixed Oxide Fast Reactor Fuel

    SciTech Connect (OSTI)

    Melissa C. Teague; Brian P. Gorman; Steven L. Hayes; Douglas L. Porter; Jeffrey King

    2013-10-01

    High burn-up mixed oxide fuel with local burn-ups of 3.4–23.7% FIMA (fissions per initial metal atom) were destructively examined as part of a research project to understand the performance of oxide fuel at extreme burn-ups. Optical metallography of fuel cross-sections measured the fuel-to-cladding gap, clad thickness, and central void evolution in the samples. The fuel-to-cladding gap closed significantly in samples with burn-ups below 7–9% FIMA. Samples with burn-ups in excess of 7–9% FIMA had a reopening of the fuel-to-cladding gap and evidence of joint oxide-gain (JOG) formation. Signs of axial fuel migration to the top of the fuel column were observed in the fuel pin with a peak burn-up of 23.7% FIMA. Additionally, high burn-up structure (HBS) was observed in the two highest burn-up samples (23.7% and 21.3% FIMA). The HBS layers were found to be 3–5 times thicker than the layers found in typical LWR fuel. The results of the study indicate that formation of JOG and or HBS prevents any significant fuel-cladding mechanical interaction from occurring, thereby extending the potential life of the fuel elements.

  14. SEDIMENT BUDGET ON THE INDIANA SHORE AT BURNS HARBOR, LAKE MICHIGAN

    E-Print Network [OSTI]

    US Army Corps of Engineers

    1 SEDIMENT BUDGET ON THE INDIANA SHORE AT BURNS HARBOR, LAKE MICHIGAN ANDREW MORANG1 , ASHLEY E.F.Bucaro@usace.army.mil Abstract: Net sediment transport in the littoral cell extending from Michigan City Harbor, IN, to Burns than most published previous estimates. The volume of sediment now bypassing the lakeward end

  15. An assessment of biofuel use and burning of agricultural waste in the developing world Rosemarie Yevich

    E-Print Network [OSTI]

    Jacob, Daniel J.

    -- -- An assessment of biofuel use and burning of agricultural waste in the developing world an assessment of biofuel use and agricultural field burning in the developing world. We used information from and Latin America, respectively. Agricultural waste supplies about 33% of total biofuel use, providing 39

  16. An assessment of biofuel use and burning of agricultural waste in the developing world

    E-Print Network [OSTI]

    Jacob, Daniel J.

    An assessment of biofuel use and burning of agricultural waste in the developing world Rosemarie 2003. [1] We present an assessment of biofuel use and agricultural field burning in the developing% of total biofuel use, providing 39%, 29%, and 13% of biofuel use in Asia, Latin America, and Africa, and 41

  17. SUPPLEMENTARY INFORMATION FOR:1 Diurnal variations of ambient particulate wood burning2

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    1 SUPPLEMENTARY INFORMATION FOR:1 Diurnal variations of ambient particulate wood burning2 emissions 616263646566 67686970717273747576 7778798081828384858687888990 919293949596979899100 BBOA wood burning 1² = 0.77 C3H5O2 + vs BBOA r² = 0.93 5 4 3 2 1 0 HOA(µgm -3 ) 706050403020100 NOx (ppb) HOA vs NOx r² = 0

  18. Effect of rotational grazing strategies and prescribed burning on cattle diet quality 

    E-Print Network [OSTI]

    Galvez Antunez, Ignacio

    2000-01-01

    of three different grazing strategies (1:1, 4:1 and 8:1 systems) affected by four prescribed burning regimes (1996, 1997, 1998 and no burn) on the quality of the diet selected by cattle. The diet quality was analyzed by taking fresh fecal samples...

  19. A Multisensor satellite-based assessment of biomass burning aerosol radiative impact over Amazonia

    E-Print Network [OSTI]

    Christopher, Sundar A.

    ]. While most of the biomass burning (BB) activities occur in Africa, South America is responsible [Christopher et al., 2000] by scattering and absorbing solar radiation. Since biomass burning has a strong projections. Robust observational constraints on the response of a climate model [Stott and Kettleborough

  20. Fuel injection staged sectoral combustor for burning low-BTU fuel gas

    DOE Patents [OSTI]

    Vogt, Robert L. (Schenectady, NY)

    1981-01-01

    A high-temperature combustor for burning low-BTU coal gas in a gas turbine is described. The combustor comprises a plurality of individual combustor chambers. Each combustor chamber has a main burning zone and a pilot burning zone. A pipe for the low-BTU coal gas is connected to the upstream end of the pilot burning zone; this pipe surrounds a liquid fuel source and is in turn surrounded by an air supply pipe; swirling means are provided between the liquid fuel source and the coal gas pipe and between the gas pipe and the air pipe. Additional preheated air is provided by counter-current coolant air in passages formed by a double wall arrangement of the walls of the main burning zone communicating with passages of a double wall arrangement of the pilot burning zone; this preheated air is turned at the upstream end of the pilot burning zone through swirlers to mix with the original gas and air input (and the liquid fuel input when used) to provide more efficient combustion. One or more fuel injection stages (second stages) are provided for direct input of coal gas into the main burning zone. The countercurrent air coolant passages are connected to swirlers surrounding the input from each second stage to provide additional oxidant.

  1. Fuel injection staged sectoral combustor for burning low-BTU fuel gas

    DOE Patents [OSTI]

    Vogt, Robert L. (Schenectady, NY)

    1985-02-12

    A high-temperature combustor for burning low-BTU coal gas in a gas turbine is described. The combustor comprises a plurality of individual combustor chambers. Each combustor chamber has a main burning zone and a pilot burning zone. A pipe for the low-BTU coal gas is connected to the upstream end of the pilot burning zone: this pipe surrounds a liquid fuel source and is in turn surrounded by an air supply pipe: swirling means are provided between the liquid fuel source and the coal gas pipe and between the gas pipe and the air pipe. Additional preheated air is provided by counter-current coolant air in passages formed by a double wall arrangement of the walls of the main burning zone communicating with passages of a double wall arrangement of the pilot burning zone: this preheated air is turned at the upstream end of the pilot burning zone through swirlers to mix with the original gas and air input (and the liquid fuel input when used) to provide more efficient combustion. One or more fuel injection stages (second stages) are provided for direct input of coal gas into the main burning zone. The countercurrent air coolant passages are connected to swirlers surrounding the input from each second stage to provide additional oxidant.

  2. Supplementary material1 Biomass burning impact on PM2.5 over the southeastern2

    E-Print Network [OSTI]

    Weber, Rodney

    1 Supplementary material1 Biomass burning impact on PM2.5 over the southeastern2 U.S. during 2007: Integrating chemically speciated FRM3 filter measurements, MODIS fire counts and PMF analysis4 5 Xiaolu Zhang1, J, A) and Fall (S, O, N).3 Winter Spring Summer Fall Annual Biomass Burning (F1) 29 15 1 8 13

  3. Impact of preindustrial biomass-burning emissions on the oxidation pathways of tropospheric sulfur and nitrogen

    E-Print Network [OSTI]

    Alexander, Becky

    the onset of the Industrial Revolution due to increases in fossil fuel burning emissions [e.g., Lelieveld et-burning events in North America just prior to the Industrial Revolution significantly impacted the oxidation the Industrial Revolution, particularly when using paleo-oxidant data as a reference for model evaluation. INDEX

  4. Safety in the Design of Three Burning Plasma Experiments

    SciTech Connect (OSTI)

    Cadwallader, L.C.; Petti, D.A. [Idaho National Engineering and Environmental Laboratory (United States)

    2003-09-15

    The 2002 Snowmass Fusion Energy Sciences Summer Study required a uniform assessment of the safety design goals for three candidate burning plasma experiments: the Fusion Ignition Research Experiment (FIRE), the IGNITOR compact tokamak, and the International Thermonuclear Experimental Reactor (ITER). The main assessment criterion was an objective judgment of each design's ability to obtain a generalized regulatory approval. A brief overview of environmental impact, safety, and health results from the uniform assessment of safety are given in this paper. As safety documentation was reviewed for each design, several issues became apparent. This paper also documents these specific issues. Each of these three designs could obtain a general regulatory approval based on their safety design practices.

  5. Exhaust gas purification system for lean burn engine

    DOE Patents [OSTI]

    Haines, Leland Milburn (Northville, MI)

    2002-02-19

    An exhaust gas purification system for a lean burn engine includes a thermal mass unit and a NO.sub.x conversion catalyst unit downstream of the thermal mass unit. The NO.sub.x conversion catalyst unit includes at least one catalyst section. Each catalyst section includes a catalytic layer for converting NO.sub.x coupled to a heat exchanger. The heat exchanger portion of the catalyst section acts to maintain the catalytic layer substantially at a desired temperature and cools the exhaust gas flowing from the catalytic layer into the next catalytic section in the series. In a further aspect of the invention, the exhaust gas purification system includes a dual length exhaust pipe upstream of the NO.sub.x conversion catalyst unit. The dual length exhaust pipe includes a second heat exchanger which functions to maintain the temperature of the exhaust gas flowing into the thermal mass downstream near a desired average temperature.

  6. Investigation of the characteristics of liquid fuel burning, Rijke type, pulsating combustors, Annual report

    SciTech Connect (OSTI)

    Zinn, B.T.; Daniel, B.R.; Katz, U.; Xu, T.S.; Su, A.

    1986-11-01

    This report describes the results obtained during the first year of a DOE sponsored research program entitled ''Investigation of the Characteristics of Liquid Fuel Burning, Rijke Type, Pulse Combustors''. This research has been concerned with the development of an efficient, nonpolluting, pulse combustor which burns liquid fuels. The design of the developed combustor is based upon principles of the acoustic Rijke tube which had been previously used, by the principal investigators of this study, to guide the development of a highly efficient, coal burning pulse combustor. The present study was initiated with the objective of determining whether the high performance achieved with the coal burning pulse combustor can be duplicated with the liquid fuel burning, Rijke type, pulse combustors. This document also describes the development of the experimental set-up and its subsequent modifications which resulted in improved performance. These studies revealed that pulse combustion operation can be maintained by more than one mechanism.

  7. . -A Scicnco Service Fnaturc Released upon receipt

    E-Print Network [OSTI]

    surrounded by a seriee of lightning-rods, has beon the Scene of two reaarkable cases of ball lishtning, both TXE:WTHER 7 Mailed Virch 31, 1930 By Charles Fitzhugh Talmn, AT:thority on Meteor01o&y. A CAS2 OF BALL LIGHTNING The inn standing at the sumit of the Faulharn (altitude 8,800 feet), in the Swiss Alps, though

  8. Transmission Services

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

    Transmission Services BPA Clarifications on the DSO216 1 Document updated on 2242015 at 3:29:25 PM B O N N E V I L L E P O W E R A D M I N I S T R A T I O N BPA Clarifications on...

  9. Ethan Burns (UNH) Abstraction in Multicore Heuristic Search 1 / 31 Parallel Best-First Search: The Role of Abstraction

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Abstraction in Multicore Heuristic Search ­ 1 / 31 Parallel Best-First Search: The Role of Abstraction Ethan Burns1, Sofia Lemons1, Wheeler Ruml1 and Rong Zhou2 1 2 [Many thanks to NSF s Best-first Search s Parallel Search PRA* PBNF Optimal Search Suboptimal Search Conclusion Ethan Burns

  10. PACIFIC SOUTHWEST FOREST SERVICE

    E-Print Network [OSTI]

    of a prescribed burn and a wildfire are often small, and too often shift rapidly from pre- scribed to wildfire retardants, and to study effects of fire on soil,vegetation, and air quality. TEST SITE Four acres

  11. Polycyclic aromatic hydrocarbons at selected burning grounds at Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Harris, B.W.; Minor, L.K.M.; Flucas, B.J.

    1998-02-01

    A commercial immunoassay field test (IFT) was used to rapidly assess the total concentrations of polycyclic aromatic hydrocarbons (PAHs) in the soil at selected burning grounds within the explosives corridor at Los Alamos National Laboratory (LANL). Results were compared with analyses obtained from LANL Analytical Laboratory and from a commercial laboratory. Both used the Environmental Protection Agency`s (EPA`s) Methods 8270 and 8310. EPA`s Method 8270 employs gas chromatography and mass spectral analyses, whereas EPA`s Method 8310 uses an ultraviolet detector in a high-performance liquid chromatography procedure. One crude oil sample and one diesel fuel sample, analyzed by EPA Method 8270, were included for references. On an average the IFT results were lower for standard samples and lower than the analytical laboratory results for the unknown samples. Sites were selected to determine whether the PAHs came from the material burned or the fuel used to ignite the burn, or whether they are produced by a high-temperature chemical reaction during the burn. Even though the crude oil and diesel fuel samples did contain measurable quantities of PAHs, there were no significant concentrations of PAHs detected in the ashes and soil at the burning grounds. Tests were made on fresh soil and ashes collected after a large burn and on aged soil and ashes known to have been at the site more than three years. Also analyzed were twelve-year-old samples from an inactive open burn cage.

  12. Measurement of adiabatic burning velocity in natural gas-like mixtures

    SciTech Connect (OSTI)

    Ratna Kishore, V.; Duhan, Nipun; Ravi, M.R.; Ray, Anjan

    2008-10-15

    Experimental measurements of the adiabatic burning velocities were carried out for natural gas-like mixtures burning in air over a range of equivalence ratios at atmospheric pressure. Effect of CO{sub 2} dilution up to 60%, N{sub 2} dilution up to 40% and 25% enrichment of ethane on burning velocity of methane-air flames were studied. Heat flux method with setup similar to that of [K.J. Bosschaart, L.P.H. de Goey, Detailed analysis of the heat flux method for measuring burning velocity, Combustion and Flame 132 (2003) 170-180] was used for measurement of burning velocities. Initially experiments were done for methane-air and ethane-air mixtures at various equivalence ratios and the results were in good agreement with published data in the literature. Computations were performed using PREMIX code with GRI 3.0 reaction mechanism for all the mixtures. Predicted flame structures were used to the explain the effect of N{sub 2} and CO{sub 2} dilution on burning velocity of methane-air flames. Peak burning velocity for CH{sub 4}/CO{sub 2}-air mixtures occur near to {phi} = 1.0. (author)

  13. IT Services' Service Level Agreement TECHNICAL SUPPORT

    E-Print Network [OSTI]

    Hamburger, Peter

    IT Services' Service Level Agreement TECHNICAL SUPPORT and HARDWARE/SOFTWARE/NETWORK MAINTENANCE This service level agreement (SLA) describes the computer services provided by Walb Union Operations into the university services card system's database by Union Operations. Walb Union Operations creates university

  14. INFORMATION TECHNOLOGY SERVICES CRM Self Service Training

    E-Print Network [OSTI]

    INFORMATION TECHNOLOGY SERVICES CRM Self Service Training Adding a Case Service Management Technology Services | its.fsu.edu | 2 #12;4. Select a Case Type 5. Select a Category that describes | Information Technology Services | its.fsu.edu | 3 #12;

  15. Response of Pan American Balsamscale, Soil, and Livestock to Prescribed Burning

    E-Print Network [OSTI]

    Mutz, J.L.; Greene, T.G.; Scifres, C.J.; Koerth, B.H.

    1985-01-01

    increased little bluestem and decreased Pan American balsamscale. Burning, whether a single burn or applied in 2 successive years, did not significantly influence soil water contents to 30 cm deep. Generally, crude protein and digestible organic matter... on the day prior to burning. Immediately prior to igni tion, fuel and mulch were collected from 10 to 25 randomly-located samples for determination of water content. At the same time, 10 soil 2 cores (0 to 8- and 8 to 30-cm deep) were extracted...

  16. Emission and transport of cesium-137 from boreal biomass burning in the summer of 2010

    SciTech Connect (OSTI)

    Strode, S.; Ott, Lesley E.; Pawson, Steven; Bowyer, Ted W.

    2012-05-09

    While atmospheric concentrations of cesium-137 have decreased since the nuclear testing era, resuspension of Cs-137 during biomass burning provides an ongoing emission source. The summer of 2010 was an intense biomass burning season in western Russia, with high levels of particulate matter impacting air quality and visibility. A radionuclide monitoring station in western Russia shows enhanced airborne Cs-137 concentrations during the wildfire period. Since Cs-137 binds to aerosols, satellite observations of aerosols and fire occurrences can provide a global-scale context for Cs-137 emissions and transport during biomass burning events.

  17. -4 Science Service WUaA aeleased upon receipt

    E-Print Network [OSTI]

    . LIGHTNING Tne anecdotal history of ball lightning in Europe has been recorded by several writers station when, about 7 o'clock in the morning, a fiery ball about as big as a baseball entered the open rear door of the rear coach, occupied by six pas- sengers. ball remained visible only a fraction

  18. A Science_Service Feature-Released upon receipt

    E-Print Network [OSTI]

    E ~ ~ N G ivfostpeople- go through l i f e without ever beholding a single emlple of ball lightning weather. The air Was sultry and there were flashes of heat lightning on the horizon. When I came t o what round balls They would apparmtly strilce the ground, then bounce up into the air i n tke lightest

  19. Vertical feed stick wood fuel burning furnace system

    DOE Patents [OSTI]

    Hill, Richard C. (Orono, ME)

    1982-01-01

    A stove or furnace for efficient combustion of wood fuel includes a vertical feed combustion chamber (15) for receiving and supporting wood fuel in a vertical attitude or stack. A major upper portion of the combustion chamber column comprises a water jacket (14) for coupling to a source of water or heat transfer fluid for convection circulation of the fluid. The locus (31) of wood fuel combustion is thereby confined to the refractory base of the combustion chamber. A flue gas propagation delay channel (34) extending laterally from the base of the chamber affords delayed travel time in a high temperature refractory environment sufficient to assure substantially complete combustion of the gaseous products of wood burning with forced air prior to extraction of heat in heat exchanger (16). Induced draft draws the fuel gas and air mixture laterally through the combustion chamber and refractory high temperature zone to the heat exchanger and flue. Also included are active sources of forced air and induced draft, multiple circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

  20. Vertical feed stick wood fuel burning furnace system

    DOE Patents [OSTI]

    Hill, Richard C. (Orono, ME)

    1984-01-01

    A new and improved stove or furnace for efficient combustion of wood fuel including a vertical feed combustion chamber for receiving and supporting wood fuel in a vertical attitude or stack, a major upper portion of the combustion chamber column comprising a water jacket for coupling to a source of water or heat transfer fluid and for convection circulation of the fluid for confining the locus of wood fuel combustion to the bottom of the vertical gravity feed combustion chamber. A flue gas propagation delay channel extending from the laterally directed draft outlet affords delayed travel time in a high temperature environment to assure substantially complete combustion of the gaseous products of wood burning with forced air as an actively induced draft draws the fuel gas and air mixture laterally through the combustion and high temperature zone. Active sources of forced air and induced draft are included, multiple use and circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

  1. Burning and graphitization of optically levitated nanodiamonds in vacuum

    E-Print Network [OSTI]

    Rahman, A T M A; Kim, M S; Bose, S; Morley, G W; Barker, P F

    2015-01-01

    A nitrogen-vacancy (NV$^-$) center in a nanodiamond, levitated in high vacuum, has recently been proposed as a probe for demonstrating mesoscopic center-of-mass superpositions \\cite{Scala2013, Zhang2013} and for testing quantum gravity \\cite{Albrecht2014}. Here, we study the behavior of optically levitated nanodiamonds containing NV$^-$ centers at sub-atmospheric pressures and show that while they burn in air, this can be prevented by replacing the air with nitrogen. However, in nitrogen the nanodiamonds graphitize below $\\approx 10$ mB. Exploiting the Brownian motion of a levitated nanodiamond, we extract its internal temperature ($T_i$) and find that it would be detrimental to the NV$^-$ center's spin coherence time \\cite{Toyli2012}. These values of $T_i$ make it clear that the diamond is not melting, contradicting a recent suggestion \\cite{Neukirch2015}. Additionally, using the measured damping rate of a levitated nanoparticle at a given pressure, we propose a new way of determining its size.

  2. Sectoral combustor for burning low-BTU fuel gas

    DOE Patents [OSTI]

    Vogt, Robert L. (Schenectady, NY)

    1980-01-01

    A high-temperature combustor for burning low-BTU coal gas in a gas turbine is disclosed. The combustor includes several separately removable combustion chambers each having an annular sectoral cross section and a double-walled construction permitting separation of stresses due to pressure forces and stresses due to thermal effects. Arrangements are described for air-cooling each combustion chamber using countercurrent convective cooling flow between an outer shell wall and an inner liner wall and using film cooling flow through liner panel grooves and along the inner liner wall surface, and for admitting all coolant flow to the gas path within the inner liner wall. Also described are systems for supplying coal gas, combustion air, and dilution air to the combustion zone, and a liquid fuel nozzle for use during low-load operation. The disclosed combustor is fully air-cooled, requires no transition section to interface with a turbine nozzle, and is operable at firing temperatures of up to 3000.degree. F. or within approximately 300.degree. F. of the adiabatic stoichiometric limit of the coal gas used as fuel.

  3. Optimization of perigee burns for manned interplanetary missions

    SciTech Connect (OSTI)

    Madsen, W.W.; Olson, T.S.; Siahpush, A.S.

    1991-01-01

    In choosing an engine concept for the rocket vehicle to be used for the initial manned exploration of Mars, the two main factors in the decision should be what can be feasibly built and flight qualified within approximately the next 20 years, and what level of engine performance is required to safely perform these missions. In order to reduce the overall cost in developing this next generation space transportation system, it would be desirable to have a single engine design that could be used for a broad class of missions (for example, cargo and piloted lunar and Mars missions, orbit transfers around the Earth, and robotic missions to the planets). The engine thrust that is needed for manned Mars missions is addressed in this paper. We find that these missions are best served by a thrust level around 75,000 lbf to 100,000 lbf, and a thrust-to-engine weight ratio of about three. This thrust level might best be obtained by clustering five 15,000 lbf or 20,000 lbf engines. It may be better to throttle the engines back from full power between perigee burns, rather than shutting down. 5 refs., 4 figs.

  4. What Caused the Lead burn-out in Spectrometer Magnet 2B

    E-Print Network [OSTI]

    Green, Michael A

    2011-01-01

    MICE Note 324 What Caused the Lead burn-out in SpectrometerThe magnet failed because a lead to coil M2 failed before itof the magnet when the lead failure occurred. The lead that

  5. A Hypothetical Burning-Velocity Formula for Very Lean Hydrogen-Air Mixtures

    SciTech Connect (OSTI)

    Williams, Forman; Williams, Forman A; Grcar, Joseph F

    2008-06-30

    Very lean hydrogen-air mixtures experience strong diffusive-thermal types of cellular instabilities that tend to increase the laminar burning velocity above the value that applies to steady, planar laminar flames that are homogeneous in transverse directions. Flame balls constitute an extreme limit of evolution of cellular flames. To account qualitatively for the ultimate effect of diffusive-thermal instability, a model is proposed in which the flame is a steadily propagating, planar, hexagonal, close-packed array of flame balls, each burning as if it were an isolated, stationary, ideal flame ball in an infinite, quiescent atmosphere. An expression for the laminar burning velocity is derived from this model, which theoretically may provide an upper limit for the experimental burning velocity.

  6. Page 1 of 3 National Research Council Burning Plasma Assessment Committee

    E-Print Network [OSTI]

    Page 1 of 3 National Research Council Burning Plasma Assessment Committee November 18, 2002 Remarks through traditional approaches: coal, oil, and natural gas. Fission will most likely play an increasing

  7. Biomass burning contribution to black carbon in the Western United States Mountain Ranges

    E-Print Network [OSTI]

    2011-01-01

    the Western United States Mountain Ranges Y. H. Mao 1,2 , Q.the Western United States Mountain Ranges applications in USthe Western United States Mountain Ranges biomass burning in

  8. Hybrid Rocket Burning Rate Enhancement by Nano-Scale Additives in HTPB Fuel Grains 

    E-Print Network [OSTI]

    Thomas, James C

    2014-12-10

    particles. The implementation of commercial aluminum particles at a mass loading of 5% as a burning rate enhancer was assessed on a lab-scale burner. Traditional temporally and spatially averaged techniques were applied to determine the regression rates...

  9. Linking Burn Severity to Soil Infiltartion and Runoff in a Montane Watershed: Boulder, Colorado 

    E-Print Network [OSTI]

    Ahlstrom, Anna 1988-

    2012-11-28

    Forest fires have an enormous impact on biotic and abiotic variables that control runoff and soil properties in watersheds. Because wildfires do not have a uniform effect on the burned area, significant variability occurs between areas of different...

  10. Hot Extrusion of Alpha Phase Uranium-Zirconium Alloys for TRU Burning Fast Reactors 

    E-Print Network [OSTI]

    Hausaman, Jeffrey Stephen

    2012-02-14

    The development of fast reactor systems capable of burning recycled transuranic (TRU) isotopes has been underway for decades at various levels of activity. These systems could significantly alleviate nuclear waste storage liabilities by consuming...

  11. Estimation of potential aircraft fuel burn reduction in cruise via speed and altitude optimization strategies

    E-Print Network [OSTI]

    Lovegren, Jonathan A. (Jonathan Anders)

    2011-01-01

    Environmental performance has become a dominant theme in all transportation sectors. As scientific evidence for global climate change mounts, social and political pressure to reduce fuel burn and C0 2 emissions has increased ...

  12. Correlation between cathode properties, burning voltage, and plasma parameters of vacuum arcs

    SciTech Connect (OSTI)

    Anders, Andre; Yotsombat, Banchob; Binder, Robert

    2001-06-15

    Burning voltages of vacuum arcs were measured for 54 cathode materials and compared with literature data. As anticipated, a correlation between the arc burning voltage and the plasma temperature was found. However, more importantly, a correlation between the cohesive energy of the cathode material and the arc burning voltage could be demonstrated. This link between a cathode material property, the cohesive energy, and a discharge property, the arc burning voltage, is essential for the operation of the vacuum arc discharge because is determines the plasma temperature. Energy balance considerations show that this {open_quotes}cohesive energy rule{close_quotes} is responsible for several other secondary relationships, such as the correlation between the mean ion charge state and the boiling temperature of the cathode. {copyright} 2001 American Institute of Physics.

  13. Vehicle Technologies Office Merit Review 2015: Advanced Lean-Burn DI Spark Ignition Fuels Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and vehicle technologies office annual merit review and peer evaluation meeting about advanced lean-burn...

  14. Contribution of garbage burning to chloride and PM[subscript 2.5] in Mexico City

    E-Print Network [OSTI]

    Li, G.

    The contribution of garbage burning (GB) emissions to chloride and PM[subscript 2.5] in the Mexico City Metropolitan Area (MCMA) has been investigated for the period of 24 to 29 March during the MILAGRO-2006 campaign using ...

  15. 1 | Barbecues and Open Burning, September 2010 UC SANTA BARBARA POLICY AND PROCEDURE

    E-Print Network [OSTI]

    must be displayed or made available upon request at the barbecue or open burning event. B. Sanctions, law, and University policies. Sanctions may include citation, fines, and/or disciplinary action. IV

  16. R. Nicholas Burns Professor of the Practice of Diplomacy and International Politics

    E-Print Network [OSTI]

    Strategy Group, Senior Counselor at the Cohen Group, serves on the Board of Directors of Entegris, Inc Nation. Professor Burns served in the United States Government for twenty-seven years. As a career

  17. Modeling the impacts of biomass burning on air quality in and around Mexico City

    E-Print Network [OSTI]

    Lei, W.

    The local and regional impacts of open fires and trash burning on ground-level ozone (O[subscript 3]) and fine carbonaceous aerosols in the Mexico City Metropolitan Area (MCMA) and surrounding region during two high fire ...

  18. General analysis of breed-and-burn reactors and limited-separations fuel cycles

    E-Print Network [OSTI]

    Petroski, Robert C

    2011-01-01

    A new theoretical framework is introduced, the "neutron excess" concept, which is useful for analyzing breed-and-burn (B&B) reactors and their fuel cycles. Based on this concept, a set of methods has been developed which ...

  19. Proton emission imaging of the nuclear burn in inertial confinement fusion experiments

    E-Print Network [OSTI]

    DeCiantis, Joseph Loreto

    2005-01-01

    A proton core imaging system has been developed and extensively used for measuring the nuclear burn regions of inertial confinement fusion implosions. These imaging cameras, mounted to the 60-beam OMEGA laser facility, use ...

  20. Climate effects of seasonally varying Biomass Burning emitted Carbonaceous Aerosols (BBCA)

    E-Print Network [OSTI]

    Jeong, Gill-Ran

    The climate impact of the seasonality of Biomass Burning emitted Carbonaceous Aerosols (BBCA) is studied using an aerosol-climate model coupled with a slab ocean model in a set of 60-year long simulations, driven by BBCA ...

  1. Recovery Boiler Modeling: An Improved Char Burning Model Including Sulfate Reduction and Carbon Removal 

    E-Print Network [OSTI]

    Grace, T. M.; Wag, K. J.; Horton, R. R.; Frederick, W. J.

    1994-01-01

    This paper describes an improved model of char burning during black liquor combustion that is capable of predicting net rates of sulfate reduction to sulfide as well as carbon burnup rates. Enhancements include a proper ...

  2. Fuel Burn and Emissions Reduction Potential of Low Power/Low Drag Approaches

    E-Print Network [OSTI]

    Dumont, Jean-Marie

    Changing aircraft operational procedures is one strategy that can be used to reduce fuel burn and mitigate environmental impacts of aviation in relatively short timeframes with existing aircraft types. This study quantifies ...

  3. Agriculture, England and Wales: The Heather and Grass Burning (Railways) General Licence,1949 

    E-Print Network [OSTI]

    Her Majesty's Stationary Office

    1949-03-21

    In pursuance of the provisions of Regulation 4 of the Heather and Grass Burning (England and Wales) Regulations, 1949(a), the Minister of Agriculture and Fisheries hereby authorises the British Transport Commission and any ...

  4. Laminar burning velocities and flame instabilities of butanol isomers-air mixtures

    SciTech Connect (OSTI)

    Gu, Xiaolei; Huang, Zuohua; Wu, Si; Li, Qianqian [State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049 (China)

    2010-12-15

    Laminar burning velocities and flame instabilities of the butanol-air premixed flames and its isomers are investigated using the spherically expanding flame with central ignition at initial temperature of 428 K and initial pressures of 0.10 MPa, 0.25 MPa, 0.50 MPa and 0.75 MPa. Laminar burning velocities and sensitivity factor of n-butanol-air mixtures are computed using a newly developed kinetic mechanism. Unstretched laminar burning velocity, adiabatic temperature, Lewis number, Markstein length, critical flame radius and Peclet number are obtained over a wide range of equivalence ratios. Effect of molecular structure on laminar burning velocity of the isomers of butanol is analyzed from the aspect of C-H bond dissociation energy. Study indicates that although adiabatic flame temperatures of the isomers of butanol are the same, laminar burning velocities give an obvious difference among the isomers of butanol. This indicates that molecular structure has a large influence on laminar burning velocities of the isomers of butanol. Branching (-CH3) will decrease laminar burning velocity. Hydroxyl functional group (-OH) attaching to the terminal carbon atoms gives higher laminar burning velocity compared to that attaching to the inner carbon atoms. Calculated dissociation bond energies show that terminal C-H bonds have larger bond energies than that of inner C-H bonds. n-Butanol, no branching and with hydroxyl functional group (-OH) attaching to the terminal carbon atom, gives the largest laminar burning velocity. tert-Butanol, with highly branching and hydroxyl functional group (-OH) attaching to the inner carbon atom, gives the lowest laminar burning velocity. Laminar burning velocities of iso-butanol and sec-butanol are between those of n-butanol and tert-butanol. The instant of transition to cellularity is experimentally determined for the isomers of butanol and subsequently interpreted on the basis of hydrodynamic and diffusion-thermal instabilities. Little effect on flame instability is observed for the isomers of butanol. Critical flame radii are the same for the isomers of butanol. Peclet number decreases with the increase in equivalence ratio. (author)

  5. s-Process Nucleosynthesis in Advanced Burning Phases of Massive Stars

    E-Print Network [OSTI]

    Lih-Sin The; Mounib F. El Eid; Bradley S. Meyer

    2006-09-28

    We present a detailed study of s-process nucleosynthesis in massive stars of solar-like initial composition and masses 15, 20,25, and 30 Msun. We update our previous results of s-process nucleosynthesis during the core He-burning of these stars and then focus on an analysis of the s-process under the physical conditions encountered during the shell-carbon burning. We show that the recent compilation of the Ne22(alpha,n)Mg25 rate leads to a remarkable reduction of the efficiency of the s-process during core He-burning. In particular, this rate leads to the lowest overproduction factor of Kr80 found to date during core He-burning in massive stars. The s-process yields resulting from shell carbon burning turn out to be very sensitive to the structural evolution of the carbon shell. This structure is influenced by the mass fraction of C12 attained at the end of core helium burning, which in turn is mainly determined by the C12(alpha,gamma)O16 reaction. The still present uncertainty in the rate for this reaction implies that the s-process in massive stars is also subject to this uncertainty. We identify some isotopes like Zn70 and Rb87 as the signatures of the s-process during shell carbon burning in massive stars. In determining the relative contribution of our s-only stellar yields to the solar abundances, we find it is important to take into account the neutron exposure of shell carbon burning. When we analyze our yields with a Salpeter Initial Mass Function, we find that massive stars contribute at least 40% to s-only nuclei with mass A 90, massive stars contribute on average ~7%, except for Gd152, Os187, and Hg198 which are ~14%, \\~13%, and ~11%, respectively.

  6. Improvement of Oak-Dominated Rangeland with Tebuthiuron and Prescribed Burning

    E-Print Network [OSTI]

    Scifres, Charles j.; Stuth, Jerry W.; Koerth, Ben H.

    1987-01-01

    Page 'in ?Origbla11JuUetiBl ' ~. " .. ! 1. , :,' ';':' \\ . f" J.: , Improvement of Oak-Dominated Rangeland with Tebuthiuron and Prescribed Burning Authors CHARLES J. SCIFRES, Thomas M. O'Connor Professor Texas Agricultural Experiment Station... samples to 8 cm deep were collected for determination of water content. Soil and fuel sam ples were weighed wet, then oven dried at 60 degrees centigrade (DC), and reweighed. Environmental variables monitored during the burns included air...

  7. Conceptual development of a continuous burning system for oil spill remediation 

    E-Print Network [OSTI]

    Venkataramaiah, Ramesh H.

    1992-01-01

    CONCEPTUAL DEVELOPMENT OF A CONTINUOUS BURNING SYSTEM FOR OIL SPILL REMEDIATION A Thesis RAMESH H. VENKATARAMAIAH Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1992 Major Subject: Civil Engineering CONCEPTUAL DEVELOPMENT OF A CONTINUOUS BURNING SYSTEM FOR OIL SPILL REMEDIATION A Thesis by RAMESH H. VENKATARAMAIAH Approved as to style and content by: oy W. Harm, Jr. (Chair...

  8. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 - 19PortalStatusUserUserHome Contact User Services

  9. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 - 19PortalStatusUserUserHome Contact UserServices

  10. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 - 19PortalStatusUserUserHome ContactUser Services

  11. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinalUnexpectedofWykoW03: DatatheServices Print The User

  12. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinalUnexpectedofWykoW03: DatatheServices Print The UserUser

  13. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinalUnexpectedofWykoW03: DatatheServices Print The

  14. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinalUnexpectedofWykoW03: DatatheServices Print TheUser

  15. User Services

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With WIPPfinalUnexpectedofWykoW03: DatatheServices Print TheUserUser

  16. Service Buildings

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home PageMonthly","10/2015"4,"Ames5 Tables July 1996 Energy Information Administration Office of Coal, Nuclear,DecadeYearby the(Dollars1.840YearDecade Year-0Feet)Service

  17. Evolution of Massive Stars Up to the End of Central Oxygen Burning

    E-Print Network [OSTI]

    Mounib F. El Eid; Bradley S. Meyer; Lih-Sin The

    2004-07-21

    We present a detailed study of the evolution of massive stars of masses 15, 20, 25 and 30 $\\msun$ assuming solar-like initial chemical composition. The stellar sequences were evolved through the advanced burning phases up to the end of core oxygen burning. We present a careful analysis of the physical characteristics of the stellar models. In particular, we investigate the effect of the still unsettled reaction $^{12}$C($\\alpha$,$\\gamma$)$^{16}$O on the advanced evolution by using recent compilations of this rate. We find that this rate has a significant impact on the evolution not only during the core helium burning phase, but also during the late burning phases, especially the shell carbon-burning. We have also considered the effect of different treatment of convective instability based on the Ledoux criterion in regions of varying molecular weight gradient during the hydrogen and helium burning phases. We compare our results with other investigations whenever available. Finally, our present study constitutes the basis of analyzing the nucleosynthesis processes in massive stars. In particular we will present a detail analysis of the {\\it s}-process in a forthcoming paper.

  18. Ultraslow Wave Nuclear Burning of Uranium-Plutonium Fissile Medium on Epithermal Neutrons

    E-Print Network [OSTI]

    V. D. Rusov; V. A. Tarasov; M. V. Eingorn; S. A. Chernezhenko; A. A. Kakaev; V. M. Vashchenko; M. E. Beglaryan

    2014-09-29

    For a fissile medium, originally consisting of uranium-238, the investigation of fulfillment of the wave burning criterion in a wide range of neutron energies is conducted for the first time, and a possibility of wave nuclear burning not only in the region of fast neutrons, but also for cold, epithermal and resonance ones is discovered for the first time. For the first time the results of the investigation of the Feoktistov criterion fulfillment for a fissile medium, originally consisting of uranium-238 dioxide with enrichments 4.38%, 2.00%, 1.00%, 0.71% and 0.50% with respect to uranium-235, in the region of neutron energies 0.015-10.0eV are presented. These results indicate a possibility of ultraslow wave neutron-nuclear burning mode realization in the uranium-plutonium media, originally (before the wave initiation by external neutron source) having enrichments with respect to uranium-235, corresponding to the subcritical state, in the regions of cold, thermal, epithermal and resonance neutrons. In order to validate the conclusions, based on the slow wave neutron-nuclear burning criterion fulfillment depending on the neutron energy, the numerical modeling of ultraslow wave neutron-nuclear burning of a natural uranium in the epithermal region of neutron energies (0.1-7.0eV) was conducted for the first time. The presented simulated results indicate the realization of the ultraslow wave neutron-nuclear burning of the natural uranium for the epithermal neutrons.

  19. Carbon production on accreting neutron stars in a new regime of stable nuclear burning

    E-Print Network [OSTI]

    Keek, L

    2015-01-01

    Accreting neutron stars exhibit Type I X-ray bursts from both frequent hydrogen/helium flashes as well as rare carbon flashes. The latter (superbursts) ignite in the ashes of the former. Hydrogen/helium bursts, however, are thought to produce insufficient carbon to power superbursts. Stable burning could create the required carbon, but this was predicted to only occur at much larger accretion rates than where superbursts are observed. We present models of a new steady-state regime of stable hydrogen and helium burning that produces pure carbon ashes. Hot CNO burning of hydrogen heats the neutron star envelope and causes helium to burn before the conditions of a helium flash are reached. This takes place when the mass accretion rate is around 10% of the Eddington limit: close to the rate where most superbursts occur. We find that increased heating at the base of the envelope sustains steady-state burning by steepening the temperature profile, which increases the amount of helium that burns before a runaway can...

  20. Fusion burn dynamics in dense Z-pinch (DZP)

    SciTech Connect (OSTI)

    Krakowski, R.A.

    1990-04-01

    The fusion burn dynamics and energy yield of the dense Z-pinch (DZP) are examined using a profile-averaged, zero-dimensional, time dependent model. A range of conditions (fuel, line density, voltage, fusion-product heating, enthalpy endloss, density and temperature profiles, current rise rate, electrode impurities) are examined. Magneto-hydrodynamic stability is assumed, and initial conditions are based on those ideally existing after the melting and ionization of a solid fiber of fusion fuel. Plasma conditions required of neutron sources for materials testing ({dot S}{sub n} {ge} 10{sup 19} n/s) and for possible commercial power production (ratio of fusion energy yield to energy input, Q{sub p} {approx equal} 15, lower values if reversible recovery of a fraction of the magnetic energy is possible) are described. If f{sub B} {approx gt} 0.8 fractional fuel burnup is possible in a nominal 800-ns DT discharge (200-ns current-rise phase at 20 MV/m followed by a 500-ns constant-current crowbarred phase), reactor-relevant values of Q{sub p} may be possible. For the simpler (and shorter) constant-voltage discharge (e.g., no voltage crowbar) the value of Q{sub p} is in the range 5--10 for discharges below 200-ns duration. Smaller levels of fuel burnup, shorter discharges, or generally lower levels of Q{sub p} will require a reversible energy transfer system to meet reactor energy-balance requirements. Imposition of a plasma current rise-time constraint that may be needed for stable plasma operation (e.g., I > 10{sup 12} A/s) will burnup, Q{sub p} and discharge time to an extent where reversible energy/transfer system will be required to meet reactor energy- balance requirements. 25 refs.

  1. Time-dependent inversion estimates of global biomass-burning CO emissions using Measurement of Pollution in the Troposphere (MOPITT) measurements

    E-Print Network [OSTI]

    Arellano, Avelino F; Kasibhatla, Prasad S; Giglio, Louis; van der Werf, Guido R; Randerson, James T; Collatz, G. James

    2006-01-01

    combustion (FFBF), biomass burning (BIOM) and chemical oxidation of biogenic nonmethane hydrocarbon (NMHC) emissions (

  2. INFORMATION TECHNOLOGY SERVICES CRM Self Service Training

    E-Print Network [OSTI]

    INFORMATION TECHNOLOGY SERVICES CRM Self Service Training Editing a Case Service Management showing the case details Florida State University | Information Technology Services | its.fsu.edu | 2 #12 the Notes and Attachments tab. A new window will open Florida State University | Information Technology

  3. WEB servicesWEB services Samuel Tardieu

    E-Print Network [OSTI]

    Tardieu, Samuel

    WEB servicesWEB services Samuel Tardieu École Nationale Supérieure des Télécommunications sam@enst.fr #12;ConceptsConcepts Web services are a new breed of Web application. They are self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. Web services perform

  4. Burn Scar Mapping in Attica, Greece using the dNBR (differenced Normalised Burn Ratio) Index on Landsat TM/ETM+ Satellite Imagery 

    E-Print Network [OSTI]

    Stratoulias, Dimitris

    2010-01-01

    This paper presents an attempt to map burn scars from 1984 to present around the city of Athens, Greece from a remote sensing perspective. Fine spatial resolution Landsat TM/ETM+ imagery was used favoured by an extensive available archive. The input...

  5. Ion kinetic effects on the ignition and burn in ICF Ion kinetic effects on the ignition and burn of ICF targets

    E-Print Network [OSTI]

    and burn of the thermonuclear fuel in inertial confinement fusion pellets at the ion kinetic level to treat fusion products (suprathermal -particles) in a self-consistent manner with the thermal bulk enhancement of fusion products leads to a significant reduction of the fusion yield. I. MOTIVATION AND CONTEXT

  6. Systematic approach to verification and validation: High explosive burn models

    SciTech Connect (OSTI)

    Menikoff, Ralph [Los Alamos National Laboratory; Scovel, Christina A. [Los Alamos National Laboratory

    2012-04-16

    Most material models used in numerical simulations are based on heuristics and empirically calibrated to experimental data. For a specific model, key questions are determining its domain of applicability and assessing its relative merits compared to other models. Answering these questions should be a part of model verification and validation (V and V). Here, we focus on V and V of high explosive models. Typically, model developers implemented their model in their own hydro code and use different sets of experiments to calibrate model parameters. Rarely can one find in the literature simulation results for different models of the same experiment. Consequently, it is difficult to assess objectively the relative merits of different models. This situation results in part from the fact that experimental data is scattered through the literature (articles in journals and conference proceedings) and that the printed literature does not allow the reader to obtain data from a figure in electronic form needed to make detailed comparisons among experiments and simulations. In addition, it is very time consuming to set up and run simulations to compare different models over sufficiently many experiments to cover the range of phenomena of interest. The first difficulty could be overcome if the research community were to support an online web based database. The second difficulty can be greatly reduced by automating procedures to set up and run simulations of similar types of experiments. Moreover, automated testing would be greatly facilitated if the data files obtained from a database were in a standard format that contained key experimental parameters as meta-data in a header to the data file. To illustrate our approach to V and V, we have developed a high explosive database (HED) at LANL. It now contains a large number of shock initiation experiments. Utilizing the header information in a data file from HED, we have written scripts to generate an input file for a hydro code, run a simulation, and generate a comparison plot showing simulated and experimental velocity gauge data. These scripts are then applied to several series of experiments and to several HE burn models. The same systematic approach is applicable to other types of material models; for example, equations of state models and material strength models.

  7. Woody plant and wintering grassland bird responses to summer prescribed burning in grazed and ungrazed Texas Mid-Coastal Prairies 

    E-Print Network [OSTI]

    Marx, Damion E.

    2003-01-01

    . . 108 112 LIST OF FIGURES FIGURE Page Graphical comparison of two regression models described in Table 2 . . . . . 16 Changes in percent shrub cover among unburned control and burned sites. . . . . 21 Changes in density of small shrubs among... unburned control and burned sites . . . 23 Changes in density of large shrubs among unburned control and burned sites . . . . . 25 Comparison of fire-induced mortality in areas dominated by baccharis with areas dominated by honey mesquite . . 27...

  8. Method and apparatus for controlling fuel/air mixture in a lean burn engine

    DOE Patents [OSTI]

    Kubesh, John Thomas (San Antonio, TX); Dodge, Lee Gene (San Antonio, TX); Podnar, Daniel James (San Antonio, TX)

    1998-04-07

    The system for controlling the fuel/air mixture supplied to a lean burn engine when operating on natural gas, gasoline, hydrogen, alcohol, propane, butane, diesel or any other fuel as desired. As specific humidity of air supplied to the lean burn engine increases, the oxygen concentration of exhaust gas discharged by the engine for a given equivalence ratio will decrease. Closed loop fuel control systems typically attempt to maintain a constant exhaust gas oxygen concentration. Therefore, the decrease in the exhaust gas oxygen concentration resulting from increased specific humidity will often be improperly attributed to an excessive supply of fuel and the control system will incorrectly reduce the amount of fuel supplied to the engine. Also, the minimum fuel/air equivalence ratio for a lean burn engine to avoid misfiring will increase as specific humidity increases. A relative humidity sensor to allow the control system to provide a more enriched fuel/air mixture at high specific humidity levels. The level of specific humidity may be used to compensate an output signal from a universal exhaust gas oxygen sensor for changing oxygen concentrations at a desired equivalence ratio due to variation in specific humidity specific humidity. As a result, the control system will maintain the desired efficiency, low exhaust emissions and power level for the associated lean burn engine regardless of the specific humidity level of intake air supplied to the lean burn engine.

  9. Sizing and burn time measurements of micron-sized metal powders

    SciTech Connect (OSTI)

    Gill, Robert J.; Mohan, Salil; Dreizin, Edward L. [New Jersey Institute of Technology Newark, New Jersey 07102 (United States)

    2009-06-15

    Detailed ignition and combustion mechanisms are needed to develop optimized propellant and energetic formulations using micron-sized metal powders, such as aluminum. Combustion researchers have traditionally used relatively coarse metal particles to characterize the burn time dependence on particle size. However, measurements of burn times for particles below 10 {mu}m in diameter are still needed for aluminum powders and other metal fuels. The apparatus described here sizes the particles just before the ignition event, providing a direct correlation between individual particle size and its burn time. Two lasers were utilized: a 785 nm laser diode for sizing the particles and a 125 W CO{sub 2} laser for particle ignition. The particles crossed the 785 nm laser beam just before crossing the CO{sub 2} laser beam. The particle size was determined from the amplitude of the scattered 785 nm light pulse. The burn time was determined from the duration of the visible light emission produced from the ignited particle. The in situ measured particle size distributions compared well with the size distributions measured for the same powders by a commercial instrument using low angle laser light scattering. Our measurements with two nominally spherical aluminum powders, suggest that the burn times increase from 0.5 to {approx}2.5 ms as the particle diameters increase from 3 to 8 {mu}m.

  10. CORE ANALYSIS, DESIGN AND OPTIMIZATION OF A DEEP-BURN PEBBLE BED REACTOR

    SciTech Connect (OSTI)

    B. Boer; A. M. Ougouag

    2010-05-01

    Achieving a high burnup in the Deep-Burn pebble bed reactor design, while remaining within the limits for fuel temperature, power peaking and temperature reactivity feedback, is challenging. The high content of Pu and Minor Actinides in the Deep-Burn fuel significantly impacts the thermal neutron energy spectrum. This can result in power and temperature peaking in the pebble bed core in locally thermalized regions near the graphite reflectors. Furthermore, the interplay of the Pu resonances of the neutron absorption cross sections at low-lying energies can lead to a positive temperature reactivity coefficient for the graphite moderator at certain operating conditions. To investigate the aforementioned effects a code system using existing codes has been developed for neutronic, thermal-hydraulic and fuel depletion analysis of Deep-Burn pebble bed reactors. A core analysis of a Deep-Burn Pebble Bed Modular Reactor (400 MWth) design has been performed for two Deep-Burn fuel types and possible improvements of the design with regard to power peaking and temperature reactivity feedback are identified.

  11. Measurements of reactive trace gases and variable O3 formation rates in some South Carolina biomass burning plumes

    E-Print Network [OSTI]

    2013-01-01

    a large natural gas power plant, and at the fire source areairport and a natural gas power plant; thus mixing of burn

  12. Deep-Burn Modular Helium Reactor Fuel Development Plan

    SciTech Connect (OSTI)

    McEachern, D

    2002-12-02

    This document contains the workscope, schedule and cost for the technology development tasks needed to satisfy the fuel and fission product transport Design Data Needs (DDNs) for the Gas Turbine-Modular Helium Reactor (GT-MHR), operating in its role of transmuting transuranic (TRU) nuclides in spent fuel discharged from commercial light-water reactors (LWRs). In its application for transmutation, the GT-MHR is referred to as the Deep-Burn MHR (DB-MHR). This Fuel Development Plan (FDP) describes part of the overall program being undertaken by the U.S. Department of Energy (DOE), utilities, and industry to evaluate the use of the GT-MHR to transmute transuranic nuclides from spent nuclear fuel. The Fuel Development Plan (FDP) includes the work on fuel necessary to support the design and licensing of the DB-MHR. The FDP is organized into ten sections. Section 1 provides a summary of the most important features of the plan, including cost and schedule information. Section 2 describes the DB-MHR concept, the features of its fuel and the plan to develop coated particle fuel for transmutation. Section 3 describes the knowledge base for fabrication of coated particles, the experience with irradiation performance of coated particle fuels, the database for fission product transport in HTGR cores, and describes test data and calculations for the performance of coated particle fuel while in a repository. Section 4 presents the fuel performance requirements in terms of as-manufactured quality and performance of the fuel coatings under irradiation and accident conditions. These requirements are provisional because the design of the DB-MHR is in an early stage. However, the requirements are presented in this preliminary form to guide the initial work on the fuel development. Section 4 also presents limits on the irradiation conditions to which the coated particle fuel can be subjected for the core design. These limits are based on past irradiation experience. Section 5 describes the Design Data Needs to: (1) fabricate the coated particle fuel, (2) predict its performance in the reactor core, (3) predict the radionuclide release rates from the reactor core, and (4) predict the performance of spent fuel in a geological repository. The heart of this fuel development plan is Section 6, which describes the development activities proposed to satisfy the DDNs presented in Section 5. The development scope is divided into Fuel Process Development, Fuel Materials Development, Fission Product Transport, and Spent Fuel Disposal. Section 7 describes the facilities to be used. Generally, this program will utilize existing facilities. While some facilities will need to be modified, there is no requirement for major new facilities. Section 8 states the Quality Assurance requirements that will be applied to the development activities. Section 9 presents detailed costs organized by WBS and spread over time. Section 10 presents a list of the types of deliverables that will be prepared in each of the WBS elements. Four Appendices contain supplementary information on: (a) design data needs, (b) the interface with the separations plant, (c) the detailed development schedule, and (d) the detailed cost estimate.

  13. G SOUTHWEST FOREST SERVICE

    E-Print Network [OSTI]

    . This soil is well-drained, runoff is medium, and permeabil- ity is moderately rapid. The soil is slightly.). In 1927, the #12;first attempt was made to clear the pasture of this noxious weed, by digging and burning commercially. The seedlings were graded, and only thrifty trees with 8- to 12-inchtops and well developed root

  14. Greenhouse gas emissions from forest, land use and biomass burning in Tanzania

    SciTech Connect (OSTI)

    Matitu, M.R.

    1994-12-31

    Carbon dioxide (CO{sub 2}) and methane (CH{sub 4}) gases are the main contributors to the greenhouse effect that consequently results in global warming. This paper examines the sources and sinks of these gases from/to forest, land use and biomass burning and their likely contribution to climate change using IPCC/OECD methodology. Emissions have been calculated in mass units of carbon and nitrogen Emissions and uptake have been summed for each gas and the emissions converted to full molecular weights. Mismanagement of forests and land misuse have contributed much to greenhouse gas emissions in Tanzania. For example, cultivation methods, forest clearing, burning of savannah grass and indiscriminate logging (non-sustainable logging) have contributed significantly to greenhouse gas emissions. These categories contribute more than 90% of total CO{sub 2} emissions. However, the study shows that shifting cultivation, savannah burning and forest clearing for conversion to permanent crop land and pasture are the main contributors.

  15. Monitoring biomass burning and aerosol loading and transport from a geostationary satellite perspective

    SciTech Connect (OSTI)

    Prins, E.M.; Menzel, W.P.

    1996-12-31

    The topic of this paper is the use of geostationary operational environmental satellites (GOES) to monitor trends in biomass burning and aerosol production and transport in South America and through the Western Hemisphere. The GOES Automated Biomass Burning Algorithm (ABBA) was developed to provide diurnal information concerning fires in South America; applications demonstrating the ability to document long-term trends in fire activity are described. Analyses of imagery collected by GOES-8 is described; six biomass burning seasons in South America revealed many examples of large-scale smoke transport extending over several million square kilometers. Four major transport regimes were identified. Case studies throughout South America, Canada, the United States, Mexico, Belize, and Guatemala have successfully demonstrated the improved capability of GOES-8 for fire and smoke monitoring in various ecosystems. Global geostationary fire monitoring will be possible with the launch of new satellites. 12 refs., 4 figs., 1 tab.

  16. Fabrication of contacts for silicon solar cells including printing burn through layers

    SciTech Connect (OSTI)

    Ginley, David S; Kaydanova, Tatiana; Miedaner, Alexander; Curtis, Calvin J; Van Hest, Marinus Franciscus Antonius Maria

    2014-06-24

    A method for fabricating a contact (240) for a solar cell (200). The method includes providing a solar cell substrate (210) with a surface that is covered or includes an antireflective coating (220). For example, the substrate (210) may be positioned adjacent or proximate to an outlet of an inkjet printer (712) or other deposition device. The method continues with forming a burn through layer (230) on the coating (220) by depositing a metal oxide precursor (e.g., using an inkjet or other non-contact printing method to print or apply a volume of liquid or solution containing the precursor). The method includes forming a contact layer (240) comprising silver over or on the burn through layer (230), and then annealing is performed to electrically connect the contact layer (240) to the surface of the solar cell substrate (210) through a portion of the burn through layer (230) and the coating (220).

  17. Western University Rehabilitation Services

    E-Print Network [OSTI]

    Lennard, William N.

    1 Western University Rehabilitation Services Transitional Accommodation Program Western by Rehabilitation Services and is updated at frequent intervals in order to: 1. confirm progression toward treatment information is held in the strictest confidence within Rehabilitation Services. Only capabilities

  18. Personal Services Agreements Waivers

    E-Print Network [OSTI]

    capital construction and controlled maintenance contracts. Type of Service 1. Construction Consultants limitations. 3. Building and Ground Services: Include floor finishing, roofing maintenance, welding operations. CSM does not have staff qualified to perform these specialized services, or does not have

  19. IBM Global Technology Services Server Services

    E-Print Network [OSTI]

    ServerTM, Power SystemsTM, pSeries®, #12;2 PowerVMTM, PowerHATM, System StorageTM disk systems, System p®, System x® and other IBM selected products with the option to purchase as a ServicePac® including: IBM Implementation Services for Power Systems-- AIX V6.1 remote implementation IBM Implementation Services for Power

  20. GENERAL SERVICES ADMINISTRATION PUBLIC BUILDINGS SERVICE

    E-Print Network [OSTI]

    (Wax, cleansers, cloths, etc.) 7. CONTRACT SERVICES (Window washing, waste and snow removal) B. HEATING a share of building support/common areas such as elevator lobbies, building corridors, and floor service areas. Floor service areas typically include restrooms, janitor rooms, telephone closets, electrical

  1. Effective Helium Burning Rates and the Production of the Neutrino Nuclei

    E-Print Network [OSTI]

    Sam M. Austin; Christopher West; Alexander Heger

    2014-02-26

    Effective values for the key helium burning reaction rates, triple-alpha and 12C(alpha,gamma)16O, are obtained by adjusting their strengths so as to obtain the best match with the solar abundance pattern of isotopes uniquely or predominately made in core collapse supernovae. These effective rates are then used to determine the production of the neutrino isotopes. The use of effective rates considerably reduces the uncertainties in the production factors arising from uncertainties in the helium burning rates, and improves our ability to use the production of 11B to constrain the neutrino emission from supernovae.

  2. The wrong kind of general: the resignation of union brigadier general William W. Burns 

    E-Print Network [OSTI]

    Ward, David Earl

    2005-08-29

    extreme to another, Burns found himself (along with the rest of the 5th Infantry) transferred to Fort Leavenworth in the summer of 1857. Inspired by a religious revival the year before, Mormon unrest had driven federal authorities out of the Utah... and the potential threat to the California-Oregon Trail were also probable factors in his decision. In May he ordered an expedition by the army to occupy Mormon centers in the Great Salt Lake Valley in Utah. Burns and the 5th Infantry were part of a five...

  3. Business Services | Jefferson Lab

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

    products and services that support the lab's overall mission. Managing the lab's vendor process is the Procurement & Services department. The department is dedicated to the...

  4. ORISE: Health physics services

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

    Health physics services Nuclear power plant The Oak Ridge Institute for Science and Education (ORISE) offers comprehensive health physics services in a number of technical areas...

  5. Global partitioning of NOx sources using satellite observations: Relative roles of fossil fuel combustion, biomass burning and

    E-Print Network [OSTI]

    Lyatt Jaeglé

    combustion, biomass burning and soil emissions Lyatt Jaegle´ ,a Linda Steinberger,a Randall V. Martinbc anthropogenic emissions, mostly resulting from fossil fuel combustion and biomass burning, are superimposed estimates are 25% larger than a priori. A posteriori fuel combustion emissions are aseasonal

  6. The spherically symmetric droplet burning characteristics of Jet-A and biofuels derived from camelina and tallow

    E-Print Network [OSTI]

    Walter, M.Todd

    The spherically symmetric droplet burning characteristics of Jet-A and biofuels derived from the biofuels due to its higher aromatic content. " Droplet burning rates of camelina and tallow HRJ fuel Available online 1 March 2013 Keywords: Alternative jet fuel Hydroprocessed biofuel Spherically symmetric

  7. Chemical and carbon isotopic characteristics of ash and smoke derived from burning of C3 and C4 grasses

    E-Print Network [OSTI]

    Chemical and carbon isotopic characteristics of ash and smoke derived from burning of C3 and C4 material and corresponding ash and smoke pro- duced from burning. The results show that smoke produced from C depletion varies with species from Ash derived from C4 grasses is

  8. John A. Burns School of Medicine (JABSOM) Doctor of Medicine Early Acceptance Program (DMEAP) for Entering Hawaii Resident Freshman

    E-Print Network [OSTI]

    John A. Burns School of Medicine (JABSOM) Doctor of Medicine Early Acceptance Program (DMEAP: _____________________________________ Date of Birth (mm/dd/yyyy): _________________ Describe why you want to pursue a career in medicine (Please type) Print Form #12;John A. Burns School of Medicine (JABSOM) Doctor of Medicine Early Acceptance

  9. Studying trends in biomass burning aerosol using the Absorbing Aerosol Index derived from GOME, SCIAMACHY, and GOME-2

    E-Print Network [OSTI]

    Tilstra, Gijsbert

    Studying trends in biomass burning aerosol using the Absorbing Aerosol Index derived from GOME the resulting time series, we use tropospheric NO2 data as a reference in the regions dominated by biomass sensitive to desert dust aerosols (DDA) and biomass burning aerosols (BBA). See Figure 1. The AAI

  10. INFORMATIONQUALITYEVALUATIONFORGRID INFORMATION SERVICES

    E-Print Network [OSTI]

    Pallis, George

    INFORMATIONQUALITYEVALUATIONFORGRID INFORMATION SERVICES Wei Xing, Oscar Corcho, Carole Goble@cs.ucy.ac.cy Abstract The quality of the information provided by information services deployed in the EGEE production query by different information services can be different. Developers of these services and of other

  11. Web Services Distributed

    E-Print Network [OSTI]

    Cook, William R.

    1 Web Services versus Distributed Objects William R. Cook, Janel Barfield University of Texas at Austin 2 How many times have you heard... 3 "Web Services suck..." ? 4 "WS are a bad version Objects 10 to 100 times faster than Web Services 7 Test Case Call a remote service that returns an integer

  12. STUDENT HEALTH MEDICAL SERVICES

    E-Print Network [OSTI]

    Huang, Haiying

    Ver 2.0 09/2012 ANNEX H STUDENT HEALTH & MEDICAL SERVICES #12;Ver 2.0 09/2012 H-i APPROVAL & IMPLEMENTATION Annex H Student Health & Medical Services This emergency management plan is hereby approved. ______________________________ ________________________ Robert Blum Date Director of Health Services Marie Bannister Date Director of Mental Health Services

  13. Proton core imaging of the nuclear burn in inertial confinement fusion implosions

    E-Print Network [OSTI]

    Proton core imaging of the nuclear burn in inertial confinement fusion implosions J. L. De; published online 7 April 2006 A proton emission imaging system has been developed and used extensively the penetrating 14.7 MeV protons produced from D 3 He fusion reactions to produce emission images of the nuclear

  14. Systematic evaluation of monometallic catalytic materials for lean-burn NOx reduction using combinatorial methods

    E-Print Network [OSTI]

    Senkan, Selim M.

    Systematic evaluation of monometallic catalytic materials for lean-burn NOx reduction using the commercialization of such engines [1]. In principle, NOx reduction could be achieved by either decomposition of NOx for NOx reduction. These efforts were spurred by the discoveries that NO can selectively be reduced over

  15. The Effects of Prescribed Burning on Fire Hazard in the Chaparral: Toward a New

    E-Print Network [OSTI]

    is predicated on the belief that young fuels (20 years old and less) are highly resistant to burning. To test to locate reburns of young chaparral fuels greater than 1000 acres (400 ha) in extent. Of the 147 fires examined, 17 (11.6 percent) contained at least one area of young fuels that had reburned. The majority

  16. Changing boreal methane sources and constant biomass burning during the last termination

    E-Print Network [OSTI]

    Chappellaz, Jérôme

    LETTERS Changing boreal methane sources and constant biomass burning during the last termination. Stocker3 Past atmospheric methane concentrations show strong fluctua- tions in parallel to rapid glacial climate changes in the Northern Hemisphere1,2 superimposed on a glacial­interglacial doubling of methane

  17. Physical and Chemical Characterization of Particulate and Gas phase Emissions from Biomass Burning

    E-Print Network [OSTI]

    Hosseini, Seyedehsan

    2012-01-01

    and emission factors of 1,3- butadiene are in the range ofkg fuel burned, the 1,3-butadiene emission value is almostPE case is one-third of 1,3-butadiene EF of 117 mg/kg fuel

  18. Tailoring the plateau burning rates of composite propellants by the use of nanoscale additives 

    E-Print Network [OSTI]

    Stephens, Matthew Aaron

    2009-05-15

    to propellants in order to enhance burning rate or other properties. However, the effect of nano-size solid additives in these propellants is not fully understood or agreed upon within the research community. The current project set out to explore what possible...

  19. TAILORING THE PLATEAU BURNING RATES OF COMPOSITE PROPELLANTS BY THE USE OF NANOSCALE ADDITIVES 

    E-Print Network [OSTI]

    Stephens, Matthew

    2010-07-14

    to propellants in order to enhance burning rate or other properties. However, the effect of nano-size solid additives in these propellants is not fully understood or agreed upon within the research community. The current project set out to explore what possible...

  20. Baseline Risk Assessment for the F-Area Burning/Rubble Pits and Rubble Pit

    SciTech Connect (OSTI)

    Palmer, E.

    1996-03-01

    This document provides an overview of the Savannah River Site (SRS) and a description of the F-Area Burning/Rubble Pits (BRPs) and Rubble Pit (RP) unit. It also describes the objectives and scope of the baseline risk assessment (BRA).

  1. Affordable Near-Term Burning-Plasma Experiments Dale M. Meade and Robert D. Woolley

    E-Print Network [OSTI]

    1,500 MWt 0 1.0 ? 0.5 5 Capital Cost TFTR/JET Fig. 1. Comparison of the capital cost of ITER with fusion energy has been the scientific feasibility, and recently the cost of this approach. The key) is estimated to cost ~$10B with a construction period of about 10 years [3]. II. Affordable Burning Plasma

  2. Mathematical Analysis of a model describing the invasion of bacteria in burn wounds #

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    and references). The rapid development of antibiotic resistance among bacteria has added urgency to the taskMathematical Analysis of a model describing the invasion of bacteria in burn wounds # D. Hilhorst arises as a model for host tissue degradation by bacteria and involves a parameter describing

  3. Mathematical Analysis of a model describing the invasion of bacteria in burn wounds

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    and references). The rapid development of antibiotic resistance among bacteria has added urgency to the taskMathematical Analysis of a model describing the invasion of bacteria in burn wounds D. Hilhorst arises as a model for host tissue degradation by bacteria and involves a parameter describing

  4. On the Structure and Accuracy of Programmed-Burn A. K. Kapila

    E-Print Network [OSTI]

    Kapila, Ashwani K.

    , Troy, New York J. B. Bdzil Los Alamos National Laboratory, Los Alamos, New Mexico and D. S. Stewart in the design of devices that use high-energy explosives. Direct numerical simulations are infeasible: accuracy of magnitude smaller than the device scale. Programmed burn is an engineering alternative that has been shown

  5. An Interactive Simulation Framework for Burning Objects Zeki Melek John Keyser

    E-Print Network [OSTI]

    Keyser, John

    simulator injects fuel into the fluid simulation. We also present a simple yet effective method for modeling is simulated as a single moving fluid. Solid objects inside the simulation domain can catch fire and start burning. Heat information is transferred from the fluid simulator to a solid simulator, while the solid

  6. Exploring the Frontiers of Burning Science Dale Meade and the FIRE Team

    E-Print Network [OSTI]

    .? Secretary of Energy ­ Abraham - DOE Mission and Priorities ­ Oct. 24, 2001 (to DOE Lab Directors and DOE) "I the base fusion sciences program 2. Directs DOE to submit a plan for construction of a U.S. Burning Plasma Experiment to Congress by July 2004. In addition, DOE may also develop a plan for United States participation

  7. Theoretical evaluation on burn injury of human respiratory tract due to inhalation of

    E-Print Network [OSTI]

    Zhang, Jun

    at tissue temperature (kPa) mQ Metabolic rate of tissue (W/m3 ) R Ideal gas constant (J/molK) Re Reynolds1 Theoretical evaluation on burn injury of human respiratory tract due to inhalation of hot gas to predict the thermal impact of inhaled hot air during the early stage of fires. Influences of individual

  8. Reaction Rate and Composition Dependence of the Stability of Thermonuclear Burning on Accreting Neutron Stars

    E-Print Network [OSTI]

    Keek, L; Heger, A

    2014-01-01

    The stability of thermonuclear burning of hydrogen and helium accreted onto neutron stars is strongly dependent on the mass accretion rate. The burning behavior is observed to change from Type I X-ray bursts to stable burning, with oscillatory burning occurring at the transition. Simulations predict the transition at a ten times higher mass accretion rate than observed. Using numerical models we investigate how the transition depends on the hydrogen, helium, and CNO mass fractions of the accreted material, as well as on the nuclear reaction rates of triple alpha and the hot-CNO breakout reactions 15O(a,g)19Ne and 18Ne(a,p)21Na. For a lower hydrogen content the transition is at higher accretion rates. Furthermore, most experimentally allowed reaction rate variations change the transition accretion rate by at most 10%. A factor ten decrease of the 15O(a,g)19Ne rate, however, produces an increase of the transition accretion rate of 35%. None of our models reproduce the transition at the observed rate, and depend...

  9. Laminar burn rates of gun propellants measured in the high-pressure strand burner

    SciTech Connect (OSTI)

    Reaugh, J. E., LLNL

    1997-10-01

    The pressure dependence of the laminar burn rate of gun propellants plays a role in the design and behavior of high-performance guns. We have begun a program to investigate the effects of processing variables on the laminar burn rates, using our high-pressure strand burner to measure these rates at pressures exceeding 700 MPa. We have burned JA2 and M43 propellant samples, provided by Dr. Arpad Juhasz, ARL, from propellant lots previously used in round-robin tests. Our results at room temperature are in accord with other measurements. In addition, we present results measured for propellant that has been preheated to 50 C before burning. We used our thermochemical equilibrium code, CHEETAH, to help interpret the simultaneous pressure and temperature measurements taken during the testing, and show examples of its use. It has been modified to provide performance measures and equations of state for the products that are familiar to the gun-propellant community users of BLAKE.

  10. Structural dynamics of hydrogen bonded methanol oligomers: Vibrational transient hole burning studies of spectral diffusion

    E-Print Network [OSTI]

    Fayer, Michael D.

    Structural dynamics of hydrogen bonded methanol oligomers: Vibrational transient hole burning resolved pump-probe experiments have been conducted on the deuterated hydroxyl stretch of methanol-d in a solution containing 0.8% methanol-d/23% methanol-h in carbon tetrachloride. Methanol-d molecules that both

  11. REVIEW PAPER Burning Water: A Comparative Analysis of the Energy Return

    E-Print Network [OSTI]

    Vermont, University of

    and gas production, much attention has been given to the search for alternative energy sources). One significant application of net energy analysis is the comparison of the EROEI of an alternative KREVIEW PAPER Burning Water: A Comparative Analysis of the Energy Return on Water Invested Kenneth

  12. Burning Forest Residues231 Corstorphine Road www.forestry.gov.uk

    E-Print Network [OSTI]

    control. The others are: Planning controlled burning operations in forestry and Forest and moorland fire to use, planning and techniques to ensure good management. The necessary legislation is specified. · Allow cut material to dry to reduce smoke production. · Ensure material is heaped and surrounded

  13. Analysis of Pollutant and Tracer Dispersion During a Prescribed Forest Burn

    E-Print Network [OSTI]

    Collins, Gary S.

    Analysis of Pollutant and Tracer Dispersion During a Prescribed Forest Burn Y. Wu1, G. Allwine1, X the potential for catastrophic wildfires and to improve the health of forests, however, emissions of pollutants from prescribed fires contribute to local and regional air quality issues and health impacts. Emissions

  14. Fuel-Burn Impact of Re-Designing Future Aircraft with Changes in Mission Specifications

    E-Print Network [OSTI]

    Alonso, Juan J.

    Fuel-Burn Impact of Re-Designing Future Aircraft with Changes in Mission Specifications Anil.S.A. Over the past few years, pressure to reduce the overall fuel consumption of the commer- cial aircraft fleet has been growing steadily. Expenses related to fuel are now one of the largest contributors

  15. A Compact Advanced Burning Plasma Experiment Dale M. Meade and Robert D. Woolley

    E-Print Network [OSTI]

    %, ­ alpha heating dominant but actively controlled Burn time # 10 t as ­ alpha heating, fast alpha effects assumptions with regard to confinement, ICRF heating, power handling and impurity control made for prior) Control of high Q plasmas through modification of plasma profiles and external sources, (3) Determination

  16. A Compact Advanced Burning Plasma Experiment Dale M. Meade and Robert D. Woolley

    E-Print Network [OSTI]

    heating dominant but actively controlled Burn time 10 s - alpha heating, fast alpha effects (e.g., TAE to confinement, ICRF heating, power handling and impurity control made for prior designs such as CIT. BPX) Control of high Q plasmas through modification of plasma profiles and external sources, (3) Determination

  17. SIDA DemoEast programme in Estonia. Supply, delivery and installation of wood pellet burning equipment

    E-Print Network [OSTI]

    Overviews 1 SIDA DemoEast programme in Estonia. Supply, delivery and installation of wood pellet. The DemoEast programme objective in Estonia was to promote the pellets firing technology, equipment and Kiltsi light oil fired boilers have been converted to wood pellets burning. The supplier

  18. Low Profile Packaging for MEMS Aero-acoustic Sensors John R. Burns1

    E-Print Network [OSTI]

    White, Robert D.

    Low Profile Packaging for MEMS Aero-acoustic Sensors John R. Burns1 , Robert D. White1 , and Joshua 02155 Abstract: This paper describes a semi-automated conductive ink process used for packaging MEMS devices. The method is applied to packaging of MEMS sensors for wind tunnel testing. The primary advantage

  19. Remote sensing approaches for reconstructing fire perimeters and burn severity mosaics in desert spring ecosystems

    E-Print Network [OSTI]

    Weisberg, Peter J.

    Remote sensing approaches for reconstructing fire perimeters and burn severity mosaics in desert. Remote sensing methods have been used in other environments to gain information about fires that have reported sizes of less than one hectare. Additional refinement of remote sensing methods is necessary

  20. CO2 transport over complex terrain Jielun Sun a,*, Sean P. Burns a

    E-Print Network [OSTI]

    Stephens, Britton B.

    CO2 transport over complex terrain Jielun Sun a,*, Sean P. Burns a , Anthony C. Delany a , Steven P; accepted 15 February 2007 Abstract CO2 transport processes relevant for estimating net ecosystem exchange investigated during a pilot experiment. We found that cold, moist, and CO2- rich air was transported downslope

  1. Biomass burning and urban air pollution over the Central Mexican Plateau

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    Biomass burning and urban air pollution over the Central Mexican Plateau J. D. Crounse1 , P. F. De@caltech.edu) Supplementary Material The following figures are MODIS satellite images of Mexico City region during the month more fires on average then TERRA. This supports the idea that fires generally flare up in the afternoon

  2. Physical and Chemical Characterization of Particulate and Gas phase Emissions from Biomass Burning

    E-Print Network [OSTI]

    Hosseini, Seyedehsan

    2012-01-01

    emission factors of 1,3- butadiene are in the range of 2.6 -kg fuel burned, the 1,3-butadiene emission value is almostPE case is one-third of 1,3-butadiene EF of 117 mg/kg fuel

  3. The Web Services Vision Definition of Web Services

    E-Print Network [OSTI]

    Cheverst, Keith

    1 The Web Services Vision Overview Definition of Web Services Key concepts Difference from traditional web model Context Service-oriented architecture Distributed computing Overview Microsoft .NET vision Web Services Difference from traditional web model Context Service-oriented architecture

  4. Revisiting impacts of nuclear burning for reviving weak shocks in neutrino-driven supernovae

    SciTech Connect (OSTI)

    Nakamura, Ko; Kotake, Kei; Takiwaki, Tomoya; Nishimura, Nobuya

    2014-02-20

    We revisit potential impacts of nuclear burning on the onset of the neutrino-driven explosions of core-collapse supernovae. By changing the neutrino luminosity and its decay time to obtain parametric explosions in one- and two-dimensional (1D and 2D, respectively) models with or without a 13 isotope ? network, we study how the inclusion of nuclear burning could affect the postbounce dynamics for 4 progenitor models; 3 for 15.0 M {sub ?} stars and 1 for an 11.2 M {sub ?} star. We find that the energy supply due to the nuclear burning of infalling material behind the shock can energize the shock expansion, especially for models that produce only marginal explosions in the absence of nuclear burning. These models are energized by nuclear energy deposition when the shock front passes through the silicon-rich layer and/or later as it touches the oxygen-rich layer. Depending on the neutrino luminosity and its decay time, the diagnostic energy of the explosion increases up to a few times 10{sup 50} erg for models with nuclear burning compared to the corresponding models without. We point out that these features are most remarkable for the Limongi-Chieffi progenitor in both 1D and 2D because the progenitor model possesses a massive oxygen layer, with an inner-edge radius that is smallest among the employed progenitors, which means that the shock can touch the rich fuel on a shorter timescale after bounce. The energy difference is generally smaller (?0.1-0.2 × 10{sup 51} erg) in 2D than in 1D (at most ?0.6 × 10{sup 51} erg). This is because neutrino-driven convection and the shock instability in 2D models enhance the neutrino heating efficiency, which makes the contribution of nuclear burning relatively smaller compared to 1D models. Considering uncertainties in progenitor models, our results indicate that nuclear burning should remain one of the important ingredients to foster the onset of neutrino-driven explosions.

  5. I-A Science Service Feature Released upon receipt

    E-Print Network [OSTI]

    '? WHY TH3 WEATHER ? Mailed March 22, 1934 i I I ______l_t--- -TRIPLE -BALL LIGHTNING By Charles Fitzhq-$i Talman, Authority on i$eteoroj.ogy A display of b a l l lightning i n t.hich three b a l l s were seen and having the velocity of a cricket ball. That indoors was seen by two ladies. A v i r e l e s s a e r i a l

  6. -A Science Service Featuse Beleased upon receipt

    E-Print Network [OSTI]

    of ball lightning, every m a i l has brcue;ht letters on the sllbject to Dr. Hwphreys, of the eath her, probably of ozone, mas noticed. The ball passed out "he troe mas not (All rights reserved by Science

  7. A Science Service Feature Released upon receipt

    E-Print Network [OSTI]

    ? Mailed May 2, 1933 By Charles Fitzhugh Talman, Authority on Meteorology. FBIIpsAY BALL LIGHTNING Xichael as a ball from place t o place; but as everything shows that its velocity must be almost infinite else tbw- a line of 119ht. phenomena of balls of f i r e may appear i n the atmosphere, I do

  8. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServices ServicesServices

  9. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServicesServices Services

  10. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServicesServicesServices

  11. Exposing the Nuclear Burning Ashes of Radius Expansion Type I X-ray Bursts

    E-Print Network [OSTI]

    Nevin N. Weinberg; Lars Bildsten; Hendrik Schatz

    2005-11-09

    We solve for the evolution of the vertical extent of the convective region of a neutron star atmosphere during a Type I X-ray burst. The convective region is well-mixed with ashes of nuclear burning and its extent determines the rise time of the burst light curve. Using a full nuclear reaction network, we show that the maximum vertical extent of the convective region during photospheric radius expansion (RE) bursts can be sufficiently great that: (1) some ashes of burning are ejected by the radiation driven wind during the RE phase and, (2) some ashes of burning are exposed at the neutron star surface following the RE phase. We find that ashes with mass number A ~ 30 - 60 are mixed in with the ejected material. We calculate the expected column density of ejected and surface ashes in hydrogen-like states and determine the equivalent widths of the resulting photoionization edges from both the wind and neutron star surface. We find that these can exceed 100 eV and are potentially detectable. A detection would probe the nuclear burning processes and might enable a measurement of the neutron star gravitational redshift. In addition, we find that in bursts with pure helium burning layers, protons from (alpha, p) reactions cause a rapid onset of the 12C(p, gamma)13N(alpha, p)16O reaction sequence. The sequence bypasses the relatively slow 12C(alpha, gamma)16O reaction and leads to a sudden surge in energy production that is directly observable as a rapid (~ ms) increase in flux during burst rise.

  12. Data summary of municipal solid waste management alternatives. Volume 3, Appendix A: Mass burn technologies

    SciTech Connect (OSTI)

    1992-10-01

    This appendix on Mass Burn Technologies is the first in a series designed to identify, describe and assess the suitability of several currently or potentially available generic technologies for the management of municipal solid waste (MSW). These appendices, which cover eight core thermoconversion, bioconversion and recycling technologies, reflect public domain information gathered from many sources. Representative sources include: professional journal articles, conference proceedings, selected municipality solid waste management plans and subscription technology data bases. The information presented is intended to serve as background information that will facilitate the preparation of the technoeconomic and life cycle mass, energy and environmental analyses that are being developed for each of the technologies. Mass burn has been and continues to be the predominant technology in Europe for the management of MSW. In the United States, the majority of the existing waste-to-energy projects utilize this technology and nearly 90 percent of all currently planned facilities have selected mass burn systems. Mass burning generally refers to the direct feeding and combustion of municipal solid waste in a furnace without any significant waste preprocessing. The only materials typically removed from the waste stream prior to combustion are large bulky objects and potentially hazardous or undesirable wastes. The technology has evolved over the last 100 or so years from simple incineration to the most highly developed and commercially proven process available for both reducing the volume of MSW and for recovering energy in the forms of steam and electricity. In general, mass burn plants are considered to operate reliably with high availability.

  13. The relationships between biomass burning, land-cover/use change, and the distribution of carbonaceous aerosols in mainland Southeast Asia: A review and synthesis

    E-Print Network [OSTI]

    Shi, Tao

    1 The relationships between biomass burning, land-cover/use change, and the distribution. 793, The Ohio State University March 3, 2007 Biomass burning is a major source of black carbon directly and indirectly. Uncertainty regarding the contribution of biomass burning to the concentration

  14. Ethan Burns (UNH) Heuristic Search for Multi-Core 1 / 25 Best-First Heuristic Search for Multi-Core Machines

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Heuristic Search for Multi-Core ­ 1 / 25 Best-First Heuristic Search for Multi-Core Machines Ethan Burns1, Seth Lemons1, Rong Zhou2 and Wheeler Ruml1 1 2 [NSF grant IIS-0812141] #12 Evaluation Conclusion Ethan Burns (UNH) Heuristic Search for Multi-Core ­ 2 / 25 Now we're into the explicit

  15. Ethan Burns (UNH) Iterative-deepening Search with On-line Tree Size Prediction 1 / 30 Iterative-deepening Search with On-line Tree Size Prediction

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Iterative-deepening Search with On-line Tree Size Prediction ­ 1 / 30 Iterative-deepening Search with On-line Tree Size Prediction Ethan Burns and Wheeler Ruml {eaburns, ruml} at cs Evaluation Ethan Burns (UNH) Iterative-deepening Search with On-line Tree Size Prediction ­ 2 / 30 On

  16. EMPLOYEE BENEFIT SERVICE Signature Service Oil Change

    E-Print Network [OSTI]

    New Mexico, University of

    UNM Staff EMPLOYEE BENEFIT SERVICE Jiffy Lube Signature Service Oil Change Fast - No Appointment We change your oil with up to 5 quarts of major brand motor oil We install a new oil fi We visually inspect. ASE training programs · Jiffy Lube uses top quality products that meet or exceed vehicle warranty

  17. Finance & Administrative Services Office of Accounting Services

    E-Print Network [OSTI]

    Harms, Kyle E.

    Finance & Administrative Services Office of Accounting Services Payroll 204 Thomas Boyd Hall when there is any change to their bank and/or bank account(s) that affects their direct deposit to disbursing funds from their account. Employees with a qualifying hardship, or students whose salary is funded

  18. LIGHTNING SYMPOSIUM November 16

    E-Print Network [OSTI]

    Taylor, Steven J.

    Geothermal Resource Mapping 11:45 a.m. to 1:15 p.m. Lunch on your own 1:15 p.m. Session 2A Andrew Osmosis ­ An Emerging Desalination Technique Tom Holm ISWS PAHs and Biochar: Sorption and Bioava

  19. ARM - Measurement - Lightning stroke

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, Alaska Outreach Home Roomparticle

  20. First Look at Smoke Emissions from Prescribed Burns in Long-unburned Longleaf Pine Forests

    SciTech Connect (OSTI)

    Akagi, Sheryl; Yokelson, Robert J.; Burling, Ian R.; Weise, David; Reardon, James; Urbanski, Shawn; Johnson, Timothy J.

    2014-02-22

    While fire has long played a role in the longleaf pine ecosystem, there are still some stands in the southeastern United States where fire has not been reintroduced and fuels have accumulated for 50 years or more. As part of a larger study examining fuel loading and smoke emissions on Department of Defense installations in the southeastern U.S., fuels and trace emissions were measured during three prescribed burns at Ft. Jackson Army Base near Columbia, South Carolina in November 2011. These pine-forest understory fires provided valuable emissions data for fires that burned in stands that had little or no exposure to fire for decades. Smoke emissions were measured on the ground and from an aircraft by scientists from a large team of atmospheric researchers. (Akagi et al., 2013) To characterize initial emissions in the lofted plume and in point sources of residual smoldering combustion, trace-gas species were measured using an airborne FTIR and a ground-based FTIR, respectively. Whole-air sampling canisters were also collected from both ground- and airborne-based platforms. A total of 97 trace gases were quantified in this work, largely via infrared spectroscopy. Selected emissions data were compared with similar data collected from prescribed burns sampled in coastal North Carolina in 2010 in younger fuels beds of loblolly/longleaf stands near Camp Lejeune (Burling et al., 2011). The emission factors measured in this work differ by ~13-195% to EF measured from the managed stands at Camp Lejeune for organic and N-containing species, suggesting that fire emissions in similar ecosystems can exhibit large variability. Part of the differences, however, may be ascribed to burn conditions as well since the NC burns were during the wet season whereas the SC stands were burned after an extended drought. We also report the first detailed FTIR emissions data for a suite of monoterpenes. Figure 1 displays the emission factors (g/kg fuel) for several monoterpenes and isoprene as measured by the ground-based FTIR system. Due to their unsaturated structure, terpenes are highly reactive compounds emitted from plants thought to contribute to secondary organic aerosol formation (SOA) (Saathoff et al., 2009; Hennigan et al., 2011) and the formation of small oxygenated volatile organic compounds (OVOCs) (Jacob et al., 2002) in fire plumes. The known chemistry and measured abundance of monoterpenes suggests that these species impacted secondary plume processes including ozone, OVOC, and SOA formation in sampled plumes within the first few hours after emission.

  1. Water relations strategies of two grass and shrub species as influenced by prescribed burning in a semiarid ecosystem in Kenya 

    E-Print Network [OSTI]

    Ali, Ali Ramadhan

    1984-01-01

    mean was based on an average of 4 dates of each hour of day at the N. R. R. S. , Kiboko, Kenya 1982-83 39 Xylem tension, transpiration rate and diffusive r esistance means for 2 grasses and 2 shrub species from burned and unburned treatments... lilP, C~th 'P ', ~Dt it 1 ~*bl h and Chlor is r oxburghiana were taken from burned and unburned plots at the National Range Research Station, Kiboko, during 1982-83. Results showed that burning had minimal effect on plant water status of the four...

  2. Web services @ MIT

    E-Print Network [OSTI]

    Tyagi, Sapna DevendraSingh, 1978-

    2004-01-01

    There are several useful web services developed at MIT by students, faculty and researchers. However, they are scattered all over MIT. Most people at MIT are unaware of the availability of these web services and hence they ...

  3. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services Services IntegratedServicesServices

  4. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServices Services The

  5. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServices Services

  6. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServicesServices

  7. The Luminosity Function of the Globular Cluster NGC 6397 Near the Limit of Hydrogen Burning

    E-Print Network [OSTI]

    King, I R; Cool, A M; Piotto, G; King, Ivan R.; Anderson, Jay; Cool, Adrienne M.; Piotto, Giampaolo

    1997-01-01

    Second-epoch HST observations of NGC 6397 have led to the measurement of proper motions accurate enough to separate the faintest cluster stars from the field, thus extending the luminosity function of this globular cluster far enough to approach the limit of hydrogen burning on the main sequence. We isolate a sample of 1385 main-sequence stars, from just below the turnoff down to I=24.5 (M_I~12.5), which corresponds to a mass of less than 0.1 solar masses for the metallicity of this cluster. Below I=22 (M_I~10), the main-sequence luminosity function drops rapidly, in a manner similar to that predicted by theoretical models of low-mass stars near the hydrogen-burning limit.

  8. The Luminosity Function of the Globular Cluster NGC 6397 Near the Limit of Hydrogen Burning

    E-Print Network [OSTI]

    Ivan R. King; Jay Anderson; Adrienne M. Cool; Giampaolo Piotto

    1997-11-03

    Second-epoch HST observations of NGC 6397 have led to the measurement of proper motions accurate enough to separate the faintest cluster stars from the field, thus extending the luminosity function of this globular cluster far enough to approach the limit of hydrogen burning on the main sequence. We isolate a sample of 1385 main-sequence stars, from just below the turnoff down to I=24.5 (M_I~12.5), which corresponds to a mass of less than 0.1 solar masses for the metallicity of this cluster. Below I=22 (M_I~10), the main-sequence luminosity function drops rapidly, in a manner similar to that predicted by theoretical models of low-mass stars near the hydrogen-burning limit.

  9. MA Transmutation Performance Simulation and Accompanied Burning-up Analysis for C-ADS

    E-Print Network [OSTI]

    Miao, Ji-Lang; Chang, Zhen-Qi

    2012-01-01

    An accelerator-driven subcritical reactor functions well in incinerating high-level radiotoxic waste (HLW) as well as providing energy. China is on his way to establish such a facility to transmutate the annual 1000 tons of HLW. A neutronic analysis has been performed for a reference core with a special task of burning minor actinides 237Np, 241Am, 243Am and 244Cm. Instant operation parameters are determined, including neutron energy spectra, thermal power distribution and transmutation validation. Burning-up analysis is carried out to further confirm the incineration efficiency. The core parameters optimized in this work will be applied to simulate in-core fuel behavior in future research.

  10. Preliminary design of ultra-long cycle fast reactor employing breed-and-burn strategy

    SciTech Connect (OSTI)

    Tak, T. W.; Yu, H.; Kim, J. H.; Lee, D. [Ulsan National Inst. of Science and Technology, gil 50, Eonyang-eup, Ulju-gun, Ulsan, 689-798 (Korea, Republic of); Kim, T. K. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60564 (United States)

    2012-07-01

    A new design of ultra-long cycle fast reactor with power rate of 1000 MWe (UCFR) has been developed based on the strategy of breed-and burn. The bottom region of the core with low enriched uranium (LEU) plays a role of igniter of the core burning and the upper natural uranium (NU) region acts as blanket for breeding. Fissile materials are bred in the blanket and the active core moves upward at a speed of 5.4 cm/year. Through the core depletion calculation using Monte Carlo code, McCARD, it is confirmed that a full power operation of 60 years without refueling is feasible. Core performance characteristics have been evaluated in terms of axial/radial power shapes, reactivity feedback coefficients, etc. This design will serve as a base model for further design study of UCFRs using LWR spent fuels in the blanket region. (authors)

  11. Thermonuclear Burning Regimes and the Use of SNe Ia in Cosmology

    E-Print Network [OSTI]

    E. I. Sorokina; S. I. Blinnikov; O. S. Bartunov

    1999-10-02

    The calculations of the light curves of thermonuclear supernovae are carried out by a method of multi-group radiation hydrodynamics. The effects of spectral lines and expansion opacity are taken into account. The predictions for UBVI fluxes are given. The values of rise time for B and V bands found in our calculations are in good agreement with the observed values. We explain why our results for the rise time have more solid physical justification than those obtained by other authors. It is shown that small variations in the chemical composition of the ejecta, produced in the explosions with different regimes of nuclear burning, can influence drastically the light curve decline in the B band and, to a lesser extent, in the V band. We argue that recent results on positive cosmological constant Lambda, found from the high redshift supernova observations, could be wrong in the case of possible variations of the preferred mode of nuclear burning in the earlier Universe.

  12. Library Services Strategic Plan

    E-Print Network [OSTI]

    Applebaum, David

    1 Library Services Strategic Plan 2013 - 2016 Contents 1. Overview 2. Mission Statements 3. Vision provided by Library Services will be integral to the College's success; therefore this strategic plan defines a vision of how the service will contribute to the achievement of the King's strategic plan over

  13. Mail Services User's Guide

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

    2005-10-03

    This Guide provides information on using Department of Energy (DOE) mail services in accordance with U.S. Postal Service, General Services Administration (GSA), and DOE regulations. Cancels DOE M 573.1-1. Canceled by DOE N 251.89.

  14. FOOD SERVICE Professional Organizations

    E-Print Network [OSTI]

    Acton, Scott

    FOOD SERVICE Professional Organizations: National Association of College and University Food National Association of College and University Food Services (NACUFS) conference NACUFS Mid-Atlantic Region of Colleges and University Food Services e-newsletter Social Media: National Association of College

  15. UNIVERSITY OF ROCHESTER University Health Service (UHS) Occupational Health Program

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    ? No Past Current Comments; Watery, burning, itchy eye(s) Coughing, sneezing, or runny nose Shortness

  16. Ancillary services market in California

    E-Print Network [OSTI]

    Gomez, Tomas; Marnay, Chris; Siddiqui, Afzal; Liew, Lucy; Khavkin, Mark

    1999-01-01

    on the Operation of the Ancillary Services Markets of theOperator (CAISO). 1999. Ancillary Service Market RedesignMethodology for AGC Ancillary Services Markets. Paper

  17. Rice straw burning in Southeast Asia as a source of CO and COS to the atmosphere

    SciTech Connect (OSTI)

    Nguyen, B.C.; Mihalopoulos, N.; Putaud, J.P. [Centre des Faibles Radioactivites, Gif-sur-Yvette (France)

    1994-08-20

    This paper discusses the results of aerosol monitoring field tests conducted in four locations in Viet Nam during 1992 and 1993. Atmospheric samples were collected during the dry and wet seasons during the time when rice straw burning was taking place in the agricultural rangelands. The samples were analyzed for carbon monoxide, carbon dioxide, and carbonyl sulfide. Experimental methods and implications of the analytical results are described. 21 refs., 2 figs., 3 tabs.

  18. The role of actinide burning and the Integral Fast Reactor in the future of nuclear power

    SciTech Connect (OSTI)

    Hollaway, W.R.; Lidsky, L.M.; Miller, M.M.

    1990-12-01

    A preliminary assessment is made of the potential role of actinide burning and the Integral Fast Reactor (IFR) in the future of nuclear power. The development of a usable actinide burning strategy could be an important factor in the acceptance and implementation of a next generation of nuclear power. First, the need for nuclear generating capacity is established through the analysis of energy and electricity demand forecasting models which cover the spectrum of bias from anti-nuclear to pro-nuclear. The analyses take into account the issues of global warming and the potential for technological advances in energy efficiency. We conclude, as do many others, that there will almost certainly be a need for substantial nuclear power capacity in the 2000--2030 time frame. We point out also that any reprocessing scheme will open up proliferation-related questions which can only be assessed in very specific contexts. The focus of this report is on the fuel cycle impacts of actinide burning. Scenarios are developed for the deployment of future nuclear generating capacity which exploit the advantages of actinide partitioning and actinide burning. Three alternative reactor designs are utilized in these future scenarios: The Light Water Reactor (LWR); the Modular Gas-Cooled Reactor (MGR); and the Integral Fast Reactor (FR). Each of these alternative reactor designs is described in some detail, with specific emphasis on their spent fuel streams and the back-end of the nuclear fuel cycle. Four separation and partitioning processes are utilized in building the future nuclear power scenarios: Thermal reactor spent fuel preprocessing to reduce the ceramic oxide spent fuel to metallic form, the conventional PUREX process, the TRUEX process, and pyrometallurgical reprocessing.

  19. Process for clean-burning fuel from low-rank coal

    DOE Patents [OSTI]

    Merriam, Norman W. (Laramie, WY); Sethi, Vijay (Laramie, WY); Brecher, Lee E. (Laramie, WY)

    1994-01-01

    A process for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage.

  20. ADVANCED BURNING STAGES AND FATE OF 8-10 M{sub Sun} STARS

    SciTech Connect (OSTI)

    Jones, S.; Hirschi, R.; Nomoto, K.; Fischer, T.; Martinez-Pinedo, G.; Timmes, F. X.; Herwig, F.; Paxton, B.; Toki, H.; Suzuki, T.; Lam, Y. H.; Bertolli, M. G.

    2013-08-01

    The stellar mass range 8 {approx}< M/M{sub Sun} {approx}< 12 corresponds to the most massive asymptotic giant branch (AGB) stars and the most numerous massive stars. It is host to a variety of supernova (SN) progenitors and is therefore very important for galactic chemical evolution and stellar population studies. In this paper, we study the transition from super-AGB (SAGB) star to massive star and find that a propagating neon-oxygen-burning shell is common to both the most massive electron capture supernova (EC-SN) progenitors and the lowest mass iron-core-collapse supernova (FeCCSN) progenitors. Of the models that ignite neon-burning off-center, the 9.5 M{sub Sun} star would evolve to an FeCCSN after the neon-burning shell propagates to the center, as in previous studies. The neon-burning shell in the 8.8 M{sub Sun} model, however, fails to reach the center as the URCA process and an extended (0.6 M{sub Sun }) region of low Y{sub e} (0.48) in the outer part of the core begin to dominate the late evolution; the model evolves to an EC-SN. This is the first study to follow the most massive EC-SN progenitors to collapse, representing an evolutionary path to EC-SN in addition to that from SAGB stars undergoing thermal pulses (TPs). We also present models of an 8.75 M{sub Sun} SAGB star through its entire TP phase until electron captures on {sup 20}Ne begin at its center and of a 12 M{sub Sun} star up to the iron core collapse. We discuss key uncertainties and how the different pathways to collapse affect the pre-SN structure. Finally, we compare our results to the observed neutron star mass distribution.

  1. Evaluation and Parameter Analysis of Burn up Calculations for the Assessment of Radioactive Waste - 13187

    SciTech Connect (OSTI)

    Fast, Ivan; Aksyutina, Yuliya; Tietze-Jaensch, Holger

    2013-07-01

    Burn up calculations facilitate a determination of the composition and nuclear inventory of spent nuclear fuel, if operational history is known. In case this information is not available, the total nuclear inventory can be determined by means of destructive or, even on industrial scale, nondestructive measurement methods. For non-destructive measurements however only a few easy-to-measure, so-called key nuclides, are determined due to their characteristic gamma lines or neutron emission. From these measured activities the fuel burn up and cooling time are derived to facilitate the numerical inventory determination of spent fuel elements. Most regulatory bodies require an independent assessment of nuclear waste properties and their documentation. Prominent part of this assessment is a consistency check of inventory declaration. The waste packages often contain wastes from different types of spent fuels of different history and information about the secondary reactor parameters may not be available. In this case the so-called characteristic fuel burn up and cooling time are determined. These values are obtained from a correlations involving key-nuclides with a certain bandwidth, thus with upper and lower limits. The bandwidth is strongly dependent on secondary reactor parameter such as initial enrichment, temperature and density of the fuel and moderator, hence the reactor type, fuel element geometry and plant operation history. The purpose of our investigation is to look into the scaling and correlation limitations, to define and verify the range of validity and to scrutinize the dependencies and propagation of uncertainties that affect the waste inventory declarations and their independent verification. This is accomplished by numerical assessment and simulation of waste production using well accepted codes SCALE 6.0 and 6.1 to simulate the cooling time and burn up of a spent fuel element. The simulations are benchmarked against spent fuel from the real reactor Obrigheim in Germany for which sufficiently precise experimental reference data are available. (authors)

  2. 2012 ARPA-E Energy Innovation Summit Keynote Presentation (Ursula Burns, Xerox Corporation)

    ScienceCinema (OSTI)

    Burns, Ursula (Xerox Corporation, Chairman and CEO)

    2014-04-11

    The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. Ursula Burns, Chairman and CEO of the Xerox Corporation, gave the second keynote address of the third day's sessions on February 29.

  3. The smoke-fireplume model : tool for eventual application to prescribed burns and wildland fires.

    SciTech Connect (OSTI)

    Brown, D. F.; Dunn, W. E.; Lazaro, M. A.; Policastro, A. J.

    1999-08-17

    Land managers are increasingly implementing strategies that employ the use of fire in prescribed burns to sustain ecosystems and plan to sustain the rate of increase in its use over the next five years. In planning and executing expanded use of fire in wildland treatment it is important to estimate the human health and safety consequences, property damage, and the extent of visibility degradation from the resulting conflagration-pyrolysis gases, soot and smoke generated during flaming, smoldering and/or glowing fires. Traditional approaches have often employed the analysis of weather observations and forecasts to determine whether a prescribed burn will affect populations, property, or protected Class I areas. However, the complexity of the problem lends itself to advanced PC-based models that are simple to use for both calculating the emissions from the burning of wildland fuels and the downwind dispersion of smoke and other products of pyrolysis, distillation, and/or fuels combustion. These models will need to address the effects of residual smoldering combustion, including plume dynamics and optical effects. In this paper, we discuss a suite of tools that can be applied for analyzing dispersion. These tools include the dispersion models FIREPLUME and SMOKE, together with the meteorological preprocessor SEBMET.

  4. Laminar burning velocities at high pressure for primary reference fuels and gasoline: Experimental and numerical investigation

    SciTech Connect (OSTI)

    Jerzembeck, S.; Peters, N. [RWTH, Aachen (Germany); Pepiot-Desjardins, P.; Pitsch, H. [Department of Mechanical Engineering, Stanford University, CA (United States)

    2009-02-15

    Spherical flames of n-heptane, iso-octane, PRF 87 and gasoline/air mixtures are experimentally investigated to determine laminar burning velocities and Markstein lengths under engine-relevant conditions by using the constant volume bomb method. Data are obtained for an initial temperature of 373 K, equivalence ratios varying from {phi}=0.7 to {phi}=1.2, and initial pressures from 10 to 25 bar. To track the flame front in the vessel a dark field He-Ne laser Schlieren measurement technique and digital image processing were used. The propagating speed with respect to the burned gases and the stretch rate are determined from the rate of change of the flame radius. The laminar burning velocities are obtained through a linear extrapolation to zero stretch. The experimentally determined Markstein numbers are compared to theoretical predictions. A reduced chemical kinetic mechanism for n-heptane and iso-octane was derived from the Lawrence Livermore comprehensive mechanisms. This mechanism was validated for ignition delay times and flame propagation at low and high pressures. In summary an overall good agreement with the various experimental data sets used in the validation was obtained. (author)

  5. Apparatus and method for burning a lean, premixed fuel/air mixture with low NOx emission

    DOE Patents [OSTI]

    Kostiuk, Larry W. (Edmonton, CA); Cheng, Robert K. (Kensington, CA)

    1996-01-01

    An apparatus for enabling a burner to stably burn a lean fuel/air mixture. The burner directs the lean fuel/air mixture in a stream. The apparatus comprises an annular flame stabilizer; and a device for mounting the flame stabilizer in the fuel/air mixture stream. The burner may include a body having an internal bore, in which case, the annular flame stabilizer is shaped to conform to the cross-sectional shape of the bore, is spaced from the bore by a distance greater than about 0.5 mm, and the mounting device mounts the flame stabilizer in the bore. An apparatus for burning a gaseous fuel with low NOx emissions comprises a device for premixing air with the fuel to provide a lean fuel/air mixture; a nozzle having an internal bore through which the lean fuel/air mixture passes in a stream; and a flame stabilizer mounted in the stream of the lean fuel/air mixture. The flame stabilizer may be mounted in the internal bore, in which case, it is shaped and is spaced from the bore as just described. In a method of burning a lean fuel/air mixture, a lean fuel/air mixture is provided, and is directed in a stream; an annular eddy is created in the stream of the lean fuel/air mixture; and the lean fuel/air mixture is ignited at the eddy.

  6. Investigation of the characteristics of a coal burning Rijke type pulsating combustor

    SciTech Connect (OSTI)

    Carvalho, J.A. Jr.

    1983-01-01

    The evaluation of the performance characteristics of a coal burning Rijke type pulsating combustor was studied. The combustor consists of an open ended vertical tube with a coal burning bed located in the middle of its lower half. The liberation of heat by the combustion process at this location results in spontaneous excitation of the fundamental, longitudinal, acoustic mode of the tube and the acoustic oscillations lead to significant intensification of the combustion process. An 108 inch long 5.5 inch internal diameter combustor was constructed and instrumented for this investigation. The measurements performed during a series of experiments conducted at various air/fuel ratios and coal feed rates include: dB level of pulsations at the mid section of the combustor, frequency of oscillations, temperature at different locations inside the combustor, mass emission rates of generated particulates, and CO, CO/sub 2/, NO/sub x/, and SP/sub 2/ concentrations in the exhaust products of the combustor. The study demonstrated that the developed pulsating combustor can burn coal stably and continuously under a variety of air/fuel ratios and that maximum amplitudes of acoustic pressure occur when operation is conducted near stoichiometric conditions. It was also verified that the presence of pulsations resulted in a very efficient and intense combustion process. The measured CO and CO/sub 2/ concentrations were used to determine the combustion efficiencies of the combustor which were higher than 95%.

  7. The rp Process Ashes from Stable Nuclear Burning on an Accreting Neutron Star

    E-Print Network [OSTI]

    Hendrik Schatz; Lars Bildsten; Andrew Cumming; Michael Wiescher

    1999-05-20

    We calculate the nucleosynthesis during stable nuclear burning on an accreting neutron star. This is appropriate for weakly magnetic neutron stars accreting at near-Eddington rates in low mass X-ray binaries, and for most accreting X-ray pulsars. We show that the nuclear burning proceeds via the rapid proton capture process (rp process), and makes nuclei far beyond the iron group. The final mixture of nuclei consists of elements with a range of masses between approximately A=60 and A=100. The average nuclear mass of the ashes is set by the extent of helium burning via (alpha,p) reactions, and depends on the local accretion rate. Our results imply that the crust of these accreting neutron stars is made from a complex mixture of heavy nuclei, with important implications for its thermal, electrical and structural properties. A crustal lattice as impure as our results suggest will have a conductivity set mostly by impurity scattering, allowing more rapid Ohmic diffusion of magnetic fields than previously estimated.

  8. Ultraslow Wave Nuclear Burning of Uranium-Plutonium Fissile Medium on Epithermal Neutrons

    E-Print Network [OSTI]

    Rusov, V D; Eingorn, M V; Chernezhenko, S A; Kakaev, A A

    2014-01-01

    For a fissile medium, originally consisting of uranium-238, the investigation of fulfillment of the wave burning criterion in a wide range of neutron energies is conducted for the first time, and a possibility of wave nuclear burning not only in the region of fast neutrons, but also for cold, epithermal and resonance ones is discovered for the first time. For the first time the results of the investigation of the Feoktistov criterion fulfillment for a fissile medium, originally consisting of uranium-238 dioxide with enrichments 4.38%, 2.00%, 1.00%, 0.71% and 0.50% with respect to uranium-235, in the region of neutron energies 0.015-10.0eV are presented. These results indicate a possibility of ultraslow wave neutron-nuclear burning mode realization in the uranium-plutonium media, originally (before the wave initiation by external neutron source) having enrichments with respect to uranium-235, corresponding to the subcritical state, in the regions of cold, thermal, epithermal and resonance neutrons. In order to...

  9. Comparison of nuclear data uncertainty propagation methodologies for PWR burn-up simulations

    E-Print Network [OSTI]

    Carlos Javier Diez; Oliver Buss; Axel Hoefer; Dieter Porsch; Oscar Cabellos

    2014-11-04

    Several methodologies using different levels of approximations have been developed for propagating nuclear data uncertainties in nuclear burn-up simulations. Most methods fall into the two broad classes of Monte Carlo approaches, which are exact apart from statistical uncertainties but require additional computation time, and first order perturbation theory approaches, which are efficient for not too large numbers of considered response functions but only applicable for sufficiently small nuclear data uncertainties. Some methods neglect isotopic composition uncertainties induced by the depletion steps of the simulations, others neglect neutron flux uncertainties, and the accuracy of a given approximation is often very hard to quantify. In order to get a better sense of the impact of different approximations, this work aims to compare results obtained based on different approximate methodologies with an exact method, namely the NUDUNA Monte Carlo based approach developed by AREVA GmbH. In addition, the impact of different covariance data is studied by comparing two of the presently most complete nuclear data covariance libraries (ENDF/B-VII.1 and SCALE 6.0), which reveals a high dependency of the uncertainty estimates on the source of covariance data. The burn-up benchmark Exercise I-1b proposed by the OECD expert group "Benchmarks for Uncertainty Analysis in Modeling (UAM) for the Design, Operation and Safety Analysis of LWRs" is studied as an example application. The burn-up simulations are performed with the SCALE 6.0 tool suite.

  10. Product Service Codes Description: Product Service Codes used...

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

    V301 RELOCATION SERVICES 273 5,828,484 R423 INTELLIGENCE SERVICES 7 5,744,939 R706 LOGISTICS SUPPORT SERVICES 11 5,536,000 S201 CUSTODIAL JANITORIAL SERVICES 5 4,401,160 D304...

  11. Generation of Web Service Descriptions and Web Service

    E-Print Network [OSTI]

    Generation of Web Service Descriptions and Web Service Module Implementation for Concept University of Science and Technology Software Systems Institute (STS) #12;Abstract Nowadays web services in order to initiate the communication. A web services endpoint communication interface utilizes

  12. The effects of technological change, experience and environmental regulation on the construction of coal-burning generating units

    E-Print Network [OSTI]

    Joskow, Paul L.

    1984-01-01

    This paper provides an empirical analysis of the technological, regulatory and organizational factors that have influenced the costs of building coal-burning steam-electric generating units over the past twenty year. We ...

  13. Spatio-temporal distribution of white-tailed deer (Odocoileus virginianus) relative to prescribed burns on rangeland in South Texas 

    E-Print Network [OSTI]

    Meek, Michael Glenn

    2009-05-15

    on whitetailed deer (Odocoileus virginianus) spatial and temporal distribution, in the presence of cattle grazing. Three 40 ha patches, constituting 10% and 6% of the land area in the lesser and greater Yellow Bluff pasture, respectively, were burned in September...

  14. Multimode regimes in quantum cascade lasers: From coherent instabilities to spatial hole burning RID B-8648-2009 

    E-Print Network [OSTI]

    Gordon, Ariel; Wang, Christine Y.; Diehl, L.; Kaertner, F. X.; Belyanin, Alexey; Bour, D.; Corzine, S.; Hoefler, G.; Liu, H. C.; Schneider, H.; Maier, T.; Troccoli, M.; Faist, J.; Capasso, Federico

    2008-01-01

    A theoretical and experimental study of multimode operation regimes in quantum cascade lasers (QCLs) is presented. It is shown that the fast gain recovery of QCLs promotes two multimode regimes: One is spatial hole burning (SHB) and the other one...

  15. ENROLLMENT SERVICES Exceptional Service and Solutions

    E-Print Network [OSTI]

    Media Improved service and interaction with students and parents via Facebook and Twitter. #12 individual's actual cost of varying credit loads and housing plans · No user logon required · Available

  16. Effects of burning on diet quality and associated production systems of cattle and goats in Acacia savannahs of Kenya 

    E-Print Network [OSTI]

    Mbui, Moses Kiruki

    1985-01-01

    . . . . . . . . . , . . . . . . . . . . . . . . . . 19 3 The study paddocks of pasture 2, showing vegetation sampling lines and treatment paddocks designated burn and unburn. . . . 20 4 Long term mean monthly rainfall for Makindu Meteorological Station and the monthly rainfall at Sheep and Goat... / oX / qO / / / / / / / Ol IA O a. 3. 2 I I I 3. 3 Fig. 3. The study paddocks of pasture 2, showing vegetation sampling. lines and treatment paddocks designated burn and unburn. 21 the periphery of NRRS, Kiboko, are the weather...

  17. The Establishment of Several Range Grasses Seeded in Burned and Unburned Slash of Ashe Junipe: (Juniperus Ashei Buchholz) 

    E-Print Network [OSTI]

    Bonnett, Norman Neal

    1960-01-01

    requirements fox' thi dejxee ef = ' MASTER OP SCXENCE Vmy, 1960 FJa)ox SubJect: RANGE MANAGRMINY THE ESTABLISHMENT OP SEVERAL RANGE GRASSES SEEDED XN BURNED AND UNBURNED SLASH OP ASHE JUNXPER (JUNIPERUS ASHEI BUCHHOLZ) NORMAN NEAL BONNETT Ajpproved aa... that fire prevented a rapid re- growth of Ashe )uniper. Naldrip (1984) also pointed out that burning the cedar slash greatly reduced the rate of cedar reinfestation (Figure 3). Four years following treatment in his experiments there were 447 cedar seed...

  18. Effects of defoliation frequency and intensity on production of four burned and unburned bushed grassland communities in south central Kenya 

    E-Print Network [OSTI]

    Too, Daniel Kipkoech

    1985-01-01

    ) and all communities by treatment and defoliation intensity and treatment within burned and unburned plots on the National Range Research Station, Kiboko, Kenya 32 5 Community X treatment interaction for total production (1982 + 1983) at the National... Station, Kiboko, Kenya 40 LID' OF FIGURES Continued Page 10 Phytomass (live + dead) across all communities by sea- son (1982), treatment and defoliation intensity within burned and unburned plots on the National Range Research Station, Kiboko, Kenya...

  19. Thorium Fuel Options for Sustained Transuranic Burning in Pressurized Water Reactors - 12381

    SciTech Connect (OSTI)

    Rahman, Fariz Abdul; Lee, John C. [University of Michigan, Ann Arbor, MI (United States); Franceschini, Fausto; Wenner, Michael [Westinghouse Electric Company LLC, Cranberry Township, PA (United States)

    2012-07-01

    As described in companion papers, Westinghouse is proposing the adoption of a thorium-based fuel cycle to burn the transuranics (TRU) contained in the current Used Nuclear Fuel (UNF) and transition towards a less radio-toxic high level waste. A combination of both light water reactors (LWR) and fast reactors (FR) is envisaged for the task, with the emphasis initially posed on their TRU burning capability and eventually to their self-sufficiency. Given the many technical challenges and development times related to the deployment of TRU burners fast reactors, an interim solution making best use of the current resources to initiate burning the legacy TRU inventory while developing and testing some technologies of later use is desirable. In this perspective, a portion of the LWR fleet can be used to start burning the legacy TRUs using Th-based fuels compatible with the current plants and operational features. This analysis focuses on a typical 4-loop PWR, with 17x17 fuel assembly design and TRUs (or Pu) admixed with Th (similar to U-MOX fuel, but with Th instead of U). Global calculations of the core were represented with unit assembly simulations using the Linear Reactivity Model (LRM). Several assembly configurations have been developed to offer two options that can be attractive during the TRU transmutation campaign: maximization of the TRU transmutation rate and capability for TRU multi-recycling, to extend the option of TRU recycling in LWR until the FR is available. Homogeneous as well as heterogeneous assembly configurations have been developed with various recycling schemes (Pu recycle, TRU recycle, TRU and in-bred U recycle etc.). Oxide as well as nitride fuels have been examined. This enabled an assessment of the potential for burning and multi-recycling TRU in a Th-based fuel PWR to compare against other more typical alternatives (U-MOX and variations thereof). Results will be shown indicating that Th-based PWR fuel is a promising option to multi-recycle and burn TRU in a thermal spectrum, while satisfying top-level operational and safety constraints. Various assembly designs have been proposed to assess the TRU burning potential of Th-based fuel in PWRs. In addition to typical homogeneous loading patterns, heterogeneous configurations exploiting the breeding potential of thorium to enable multiple cycles of TRU irradiation and burning have been devised. The homogeneous assembly design, with all pins featuring TRU in Th, has the benefit of a simple loading pattern and the highest rate of TRU transmutation, but it can be used only for a few cycles due to the rapid rise in the TRU content of the recycled fuel, which challenges reactivity control, safety coefficients and fuel handling. Due to its simple loading pattern, such assembly design can be used as the first step of Th implementation, achieving up to 3 times larger TRU transmutation rate than conventional U-MOX, assuming same fraction of MOX assemblies in the core. As the next step in thorium implementation, heterogeneous assemblies featuring a mixed array of Th-U and Th-U-TRU pins, where the U is in-bred from Th, have been proposed. These designs have the potential to enable burning an external supply of TRU through multiple cycles of irradiation, recovery (via reprocessing) and recycling of the residual actinides at the end of each irradiation cycle. This is achieved thanks to a larger breeding of U from Th in the heterogeneous assemblies, which reduces the TRU supply and thus mitigates the increase in the TRU core inventory for the multi-recycled fuel. While on an individual cycle basis the amount of TRU burned in the heterogeneous assembly is reduced with respect to the homogeneous design, TRU burning rates higher than single-pass U-MOX fuel can still be achieved, with the additional benefits of a multi-cycle transmutation campaign recycling all TRU isotopes. Nitride fuel, due its higher density and U breeding potential, together with its better thermal properties, ideally suits the objectives and constraints of the heterogeneous assemblies. However, signi

  20. Selective NOx Recirculation for Stationary Lean-Burn Natural Gas Engines

    SciTech Connect (OSTI)

    Nigel N. Clark

    2006-12-31

    Nitric oxide (NO) and nitrogen dioxide (NO2) generated by internal combustion (IC) engines are implicated in adverse environmental and health effects. Even though lean-burn natural gas engines have traditionally emitted lower oxides of nitrogen (NOx) emissions compared to their diesel counterparts, natural gas engines are being further challenged to reduce NOx emissions to 0.1 g/bhp-hr. The Selective NOx Recirculation (SNR) approach for NOx reduction involves cooling the engine exhaust gas and then adsorbing the NOx from the exhaust stream, followed by the periodic desorption of NOx. By sending the desorbed NOx back into the intake and through the engine, a percentage of the NOx can be decomposed during the combustion process. SNR technology has the support of the Department of Energy (DOE), under the Advanced Reciprocating Engine Systems (ARES) program to reduce NOx emissions to under 0.1 g/bhp-hr from stationary natural gas engines by 2010. The NO decomposition phenomenon was studied using two Cummins L10G natural gas fueled spark-ignited (SI) engines in three experimental campaigns. It was observed that the air/fuel ratio ({lambda}), injected NO quantity, added exhaust gas recirculation (EGR) percentage, and engine operating points affected NOx decomposition rates within the engine. Chemical kinetic model predictions using the software package CHEMKIN were performed to relate the experimental data with established rate and equilibrium models. The model was used to predict NO decomposition during lean-burn, stoichiometric burn, and slightly rich-burn cases with added EGR. NOx decomposition rates were estimated from the model to be from 35 to 42% for the lean-burn cases and from 50 to 70% for the rich-burn cases. The modeling results provided an insight as to how to maximize NOx decomposition rates for the experimental engine. Results from this experiment along with chemical kinetic modeling solutions prompted the investigation of rich-burn operating conditions, with added EGR to prevent preignition. It was observed that the relative air/fuel ratio, injected NO quantity, added EGR fraction, and engine operating points affected the NO decomposition rates. While operating under these modified conditions, the highest NO decomposition rate of 92% was observed. In-cylinder pressure data gathered during the experiments showed minimum deviation from peak pressure as a result of NO injections into the engine. A NOx adsorption system, from Sorbent Technologies, Inc., was integrated with the Cummins engine, comprised a NOx adsorbent chamber, heat exchanger, demister, and a hot air blower. Data were gathered to show the possibility of NOx adsorption from the engine exhaust, and desorption of NOx from the sorbent material. In order to quantify the NOx adsorption/desorption characteristics of the sorbent material, a benchtop adsorption system was constructed. The temperature of this apparatus was controlled while data were gathered on the characteristics of the sorbent material for development of a system model. A simplified linear driving force model was developed to predict NOx adsorption into the sorbent material as cooled exhaust passed over fresh sorbent material. A mass heat transfer analysis was conducted to analyze the possibility of using hot exhaust gas for the desorption process. It was found in the adsorption studies, and through literature review, that NO adsorption was poor when the carrier gas was nitrogen, but that NO in the presence of oxygen was adsorbed at levels exceeding 1% by mass of the sorbent. From the three experimental campaigns, chemical kinetic modeling analysis, and the scaled benchtop NOx adsorption system, an overall SNR system model was developed. An economic analysis was completed, and showed that the system was impractical in cost for small engines, but that economies of scale favored the technology.

  1. An Ontology for the Quality Attributes of web services Web Services are an implementation of Service Oriented Architecture. Web Services

    E-Print Network [OSTI]

    An Ontology for the Quality Attributes of web services Abstract Web Services are an implementation of Service Oriented Architecture. Web Services applications are built by integration of many loosely coupled heterogeneous Services. Unfortunately Web Services still face many problems that are limiting their growth

  2. Services | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report AppendicesAVideo »Services ServicesServices

  3. General Service LED Lamps

    Broader source: Energy.gov [DOE]

    A U.S. DOE SSL technology fact sheet that compares general service LED light bulbs with incandescent and CFL bulbs.

  4. Internal Revenue Service

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

    ABCDEFGHI ABCDEFGHI ABCDEFGHI ABCDEFGHI ABCDEFGHI ABCDEFGHI ABCDEFGHI ABCDE 200254 X PREPAID LEGAL X SCHEDULE A (Form 5500) Department of the Treasury Internal Revenue Service...

  5. UGIES Midstream Services

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

    to local markets; Wilkes Barre and Scranton markets no longer dependent upon Natural gas from the Gulf of Mexico Locational volatility and spreads UGI Energy Services, LLC 8...

  6. Mail Services User's Manual

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

    2000-07-12

    This Manual provides detailed information on using the Department of Energy (DOE) mail services. Canceled by DOE G 573.1-1.

  7. Web Service Interface (API)

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

    OSCARS and Future Tech OSCARS Standard and Open Grid Forum OSCARS Developers Community Web Browser Interface (WBUI) Web Service Interface (API) Read More... Fasterdata IPv6...

  8. Discovery of Daemons Makes Power Generation by Daemon-Assisted Catalysis of Light Nuclei Fusion in a Ball Lightning a Reality

    E-Print Network [OSTI]

    E. M. Drobyshevski

    2004-06-19

    In 1997, we proposed a model of the ball lightning (BL) whose activity is accounted for by energy release in the fusion of light nuclei, most probably, carbon in organic fibers (Proc. ISBL 97, p.157). The fusion is provided by catalytic action of superheavy negative particles making up the Galactic Dark Matter. We called them DArk Electric Matter Objects, or daemons. The daemons are assumed to be elementary black holes (M ~ 10^-5 g) carrying a charge of up to Ze = 10e. Experiments have culminated in 2000 by the discovery of daemons. We used the two-screen scintillation technique with a scintillator ZnS(Ag). Measurements showed the daemon flux striking the Earth to be ~10^-9 cm^-2s^-1 for an object velocity of as low as ~<10-30 km/s. The half-year periodicity of the flux was revealed, which can be assigned to daemons being captured into helio- and geocentric orbits as the Solar system moves through the DM background (see astro-ph/0402367). The next step in creating a daemon-mediated BL to achieve controlled energy generation through catalytic fusion of carbon nuclei will be a search for methods of capture and stable holding of a daemon, which could involve the use of the tip of a carbon fiber, as it apparently occurs in nature.

  9. Discovery of Daemons Makes Power Generation by Daemon-Assisted Catalysis of Light Nuclei Fusion in a Ball Lightning a Reality

    E-Print Network [OSTI]

    Drobyshevski, E M

    2004-01-01

    In 1997, we proposed a model of the ball lightning (BL) whose activity is accounted for by energy release in the fusion of light nuclei, most probably, carbon in organic fibers (Proc. ISBL 97, p.157). The fusion is provided by catalytic action of superheavy negative particles making up the Galactic Dark Matter. We called them DArk Electric Matter Objects, or daemons. The daemons are assumed to be elementary black holes (M ~ 10^-5 g) carrying a charge of up to Ze = 10e. Experiments have culminated in 2000 by the discovery of daemons. We used the two-screen scintillation technique with a scintillator ZnS(Ag). Measurements showed the daemon flux striking the Earth to be ~10^-9 cm^-2s^-1 for an object velocity of as low as ~<10-30 km/s. The half-year periodicity of the flux was revealed, which can be assigned to daemons being captured into helio- and geocentric orbits as the Solar system moves through the DM background (see astro-ph/0402367). The next step in creating a daemon-mediated BL to achieve controlled...

  10. Oxidation of volatiles in residential wood burning equipment. Final technical report, September 1980-February 1984

    SciTech Connect (OSTI)

    Malte, P.C.; Thornton, M.M.; Kamber, P.D.

    1984-04-01

    The objectives of this project are to measure, through the use of laboratory combustors, those conditions which promote complete combustion of wood volatiles in residential wood burning equipment. The conditions of interest are combustion temperature, residence time, stoichiometry, and air mixing. The project objectives are met through two laboratory approaches: (1) model compound studies: in order to measure the overall rates of oxidative pyrolysis of biomass volatiles, and to determine the types of intermediate organic species which are likely to form as part of this process, model compounds have been reacted in a specialized jet-stirred reactor, which has been developed as part of this research. (2) high-intensity wood combustion: in order to study the clean combustion of wood, that is, to investigate the conceptual design features required for clean burning, and to ascertain the levels and types of pollutant and condensible species which are most difficult to oxidize, a high-intensity, research wood combustor has been developed and examined for the different phases of the wood burning cycle. Although the objectives of the project have been met, it has not been possible, because of support limitations, to thoroughly explore several interesting aspects which have arisen because of this research. For example, a third laboratory system in which wood pyrolysis gas is injected directly into the a well characterized reactor, so that the kinetics and mechanisms of the gas-phase reaction of the actual biomass volatiles can be studied, could not be thoroughly developed. Refinements in the high-intensity wood combustor, which would bring its design features closer to practicality for the industry, could not be considered. 32 references, 37 figures, 10 tables.

  11. Method for correcting for isotope burn-in effects in fission neutron dosimeters

    DOE Patents [OSTI]

    Gold, Raymond (Richland, WA); McElroy, William N. (Richland, WA)

    1988-01-01

    A method is described for correcting for effect of isotope burn-in in fission neutron dosimeters. Two quantities are measured in order to quantify the "burn-in" contribution, namely P.sub.Z',A', the amount of (Z', A') isotope that is burned-in, and F.sub.Z', A', the fissions per unit volume produced in the (Z', A') isotope. To measure P.sub.Z', A', two solid state track recorder fission deposits are prepared from the very same material that comprises the fission neutron dosimeter, and the mass and mass density are measured. One of these deposits is exposed along with the fission neutron dosimeter, whereas the second deposit is subsequently used for observation of background. P.sub.Z', A' is then determined by conducting a second irradiation, wherein both the irradiated and unirradiated fission deposits are used in solid state track recorder dosimeters for observation of the absolute number of fissions per unit volume. The difference between the latter determines P.sub.Z', A' since the thermal neutron cross section is known. F.sub.Z', A' is obtained by using a fission neutron dosimeter for this specific isotope, which is exposed along with the original threshold fission neutron dosimeter to experience the same neutron flux-time history at the same location. In order to determine the fissions per unit volume produced in the isotope (Z', A') as it ingrows during the irradiation, B.sub.Z', A', from these observations, the neutron field must generally be either time independent or a separable function of time t and neutron energy E.

  12. Response of Camphorweed and Associated Vegetation to Herbicides and Prescibed Burning

    E-Print Network [OSTI]

    Mutz, J.L.; Scifres, C.J.; Hanselka, C.W.

    1981-01-01

    . Immediately prior to burning, standin fine fuel (sta B ing crop plus mulch) in ten, 0.25-m sampling a r2& equidistantly spaced along the permanent lines, f i harvested to ground level and the mulch collena,. Because of freezing weather prior to sampling..., all stand- ing fine fuel was dead. All fuel samples were sealed in metal cans, air-dried for 48 hours at 65" C, and weighed. Oven-dry water content of soil was f'r- rmined on ten samples recovered from 0 to 8, 8 to and 15 to 30 cm deep from...

  13. Suzaku Reveals Helium-burning Products in the X-ray Emitting Planetary Nebula BD+303639

    E-Print Network [OSTI]

    M. Murashima; M. Kokubun; K. Makishima; J. Kotoku; H. Murakami; K. Matsushita; K. Hayashida; K. Arnaud; K. Hamaguchi; H. Matsumoto

    2006-07-07

    BD+303639, the brightest planetary nebula at X-ray energies, was observed with Suzaku, an X-ray observatory launched on 2005 July 10. Using the X-ray Imaging Spectrometer, the K-lines from C VI, O VII, and O VIII were resolved for the first time, and C/O, N/O, and Ne/O abundance ratios determined. The C/O and Ne/O abundance ratios exceed the solar value by a factor of at least 30 and 5, respectively. These results indicate that the X-rays are emitted mainly by helium shell-burning products.

  14. An investigation of the burning rates of thin films of some selected composite propellants 

    E-Print Network [OSTI]

    Sawyer, Miles Lee

    1970-01-01

    at Atmospheric Pressure. 81 X11 LIST OF SYMI30LS p, s. l. a. p. s. i. g. I-unctions of heating rate and diffusional mixing rate for Fenn pyrolisis rate quation. Propellant film thickness (FIG 11) Unknown parameter in Fenn pyrolisis rate equation... and 510, 164 PETN PVC RDX ST Pen taerythri tol Tetrani trate Polyvinyl Chloride Cycl otrinethyl enetrini trari~ine Steel powder INTRODUCTION General The primary purpose of this study is to investigate ti? burning properties of a thin film...

  15. Process for clean-burning fuel from low-rank coal

    DOE Patents [OSTI]

    Merriam, N.W.; Sethi, V.; Brecher, L.E.

    1994-06-21

    A process is described for upgrading and stabilizing low-rank coal involving the sequential processing of the coal through three fluidized beds; first a dryer, then a pyrolyzer, and finally a cooler. The fluidizing gas for the cooler is the exit gas from the pyrolyzer with the addition of water for cooling. Overhead gas from pyrolyzing is likely burned to furnish the energy for the process. The product coal exits with a tar-like pitch sealant to enhance its safety during storage. 1 fig.

  16. Method of burning sulfur-containing fuels in a fluidized bed boiler

    DOE Patents [OSTI]

    Jones, Brian C. (Windsor, CT)

    1982-01-01

    A method of burning a sulfur-containing fuel in a fluidized bed of sulfur oxide sorbent wherein the overall utilization of sulfur oxide sorbent is increased by comminuting the bed drain solids to a smaller average particle size, preferably on the order of 50 microns, and reinjecting the comminuted bed drain solids into the bed. In comminuting the bed drain solids, particles of spent sulfur sorbent contained therein are fractured thereby exposing unreacted sorbent surface. Upon reinjecting the comminuted bed drain solids into the bed, the newly-exposed unreacted sorbent surface is available for sulfur oxide sorption, thereby increasing overall sorbent utilization.

  17. On the Stability of Thermonuclear Burning Fronts in Type Ia Supernovae

    E-Print Network [OSTI]

    F. K. Roepke; W. Hillebrandt

    2004-04-26

    The propagation of cellularly stabilized thermonuclear flames is investigated by means of numerical simulations. In Type Ia supernova explosions the corresponding burning regime establishes at scales below the Gibson length. The cellular flame stabilization - which is a result of an interplay between the Landau-Darrieus instability and a nonlinear stabilization mechanism - is studied for the case of propagation into quiescent fuel as well as interaction with vortical fuel flows. Our simulations indicate that in thermonuclear supernova explosions stable cellular flames develop around the Gibson scale and that deflagration-to-detonation transition is unlikely to be triggered from flame evolution effects here.

  18. Savannah River Site - L-Area Burning/Rubble Pit | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummaryDIST OFMEAG, Dalton2ProgramArea Burning/Rubble Pit Remediation

  19. MESSAGE EXCHANGES FOR WEB SERVICE-BASED MAPPING SERVICES

    E-Print Network [OSTI]

    MESSAGE EXCHANGES FOR WEB SERVICE-BASED MAPPING SERVICES Ahmet Sayar 1, *, Marlon Pierce 1 will be implemented more extensively by using Web Service approach. A spatial data infrastructure lets many GIS the integration of data and services from multiple sources from different vendors. The Web services architecture

  20. SERVICE MANUAL AUTORANGING

    E-Print Network [OSTI]

    Kleinfeld, David

    SERVICE MANUAL AUTORANGING DC POWER SUPPLY AGILENT MODELS 6010A, 6011A, 6012B and 6015A Agilent pay for return of products to Customer. Warranty services outside the country of initial purchase, the Customer shall be entitled to a refund of the purchase price upon return of the product to Agilent