National Library of Energy BETA

Sample records for modified mercalli intensity

  1. EIA Energy Efficiency-Residential Sector Energy Intensities,...

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

    Residential Sector Energy Intensities RESIDENTIAL SECTOR ENERGY INTENSITIES: 1978-2005 Released Date: August 2004 Page Last Modified:June 2009 These tables provide estimates of...

  2. Building-Level Intensities

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

    . Electricity Consumption and Expenditure Intensities for Non-Mall Buildings, 2003" ,"Electricity Consumption",,,,,,"Electricity Expenditures" ,"per Building (thousand kWh)","per...

  3. Light intensity compressor

    DOE Patents [OSTI]

    Rushford, Michael C. (Livermore, CA)

    1990-01-01

    In a system for recording images having vastly differing light intensities over the face of the image, a light intensity compressor is provided that utilizes the properties of twisted nematic liquid crystals to compress the image intensity. A photoconductor or photodiode material that is responsive to the wavelength of radiation being recorded is placed adjacent a layer of twisted nematic liquid crystal material. An electric potential applied to a pair of electrodes that are disposed outside of the liquid crystal/photoconductor arrangement to provide an electric field in the vicinity of the liquid crystal material. The electrodes are substantially transparent to the form of radiation being recorded. A pair of crossed polarizers are provided on opposite sides of the liquid crystal. The front polarizer linearly polarizes the light, while the back polarizer cooperates with the front polarizer and the liquid crystal material to compress the intensity of a viewed scene. Light incident upon the intensity compressor activates the photoconductor in proportion to the intensity of the light, thereby varying the field applied to the liquid crystal. The increased field causes the liquid crystal to have less of a twisting effect on the incident linearly polarized light, which will cause an increased percentage of the light to be absorbed by the back polarizer. The intensity of an image may be compressed by forming an image on the light intensity compressor.

  4. revision:19950904 modified:19950904

    E-Print Network [OSTI]

    Shelah, Saharon

    530 revision:1995­09­04 modified:1995­09­04 A model in which every Boolean algebra has many:1995­09­04 modified:1995­09­04 1 Definitions and facts In this section we give some basic definitions­ algebras using the following well­known fact. 2 #12; 530 revision:1995­09­04 modified:1995­09­04 Fact 1

  5. revision:19951120 modified:19951201

    E-Print Network [OSTI]

    Shelah, Saharon

    609 revision:1995­11­20 modified:1995­12­01 A ZFC Dowker space in # #+1 : an application of pcf; 609 revision:1995­11­20 modified:1995­12­01 Exactly two Dowker spaces were constructed in ZFC so far # in this interval is the true cofinality of a 2 #12; 609 revision:1995­11­20 modified:1995­12­01 reduced product # B

  6. revision:19950829 modified:19950829

    E-Print Network [OSTI]

    Shelah, Saharon

    595 revision:1995­08­29 modified:1995­08­29 Embedding Cohen algebras using pcf theory Saharon and Department of Mathematics Rutgers University New Brunswick, NJ 08854, USA done: July 1995 printed: October 6 and Humanities. Publication 595. 1 #12; 595 revision:1995­08­29 modified:1995­08­29 Sh:595 October 6, 2003 2 3

  7. revision:19950227 modified:19950227

    E-Print Network [OSTI]

    Shelah, Saharon

    495 revision:1995­02­27 modified:1995­02­27 ``On the Strong Equality between Supercompactness and Department of Mathematics Rutgers University New Brunswick, New Jersey 08904 February 19, 1995 Abstract: We:1995­02­27 modified:1995­02­27 §0 Introduction and Preliminaries It is a well known fact

  8. revision:19951225 modified:19951226

    E-Print Network [OSTI]

    Shelah, Saharon

    496 revision:1995­12­25 modified:1995­12­26 ``Menas' Result is Best Possible'' by Arthur W. Apter Brunswick, New Jersey 08904 December 11, 1995 Abstract: Generalizing some earlier techniques due supporting this research. 1 #12; 496 revision:1995­12­25 modified:1995­12­26 §0 Introduction

  9. revision:19950418 modified:19950422

    E-Print Network [OSTI]

    Shelah, Saharon

    571 revision:1995­04­18 modified:1995­04­22 A consistency result on weak reflection James Cummings The research for this paper was done in the period July 1994 -- January 1995. 1 #12; 571 revision:1995­04­18 modified:1995­04­22 have an unbounded set of cofinalities at which strong non­reflection holds

  10. revision:19950904 modified:19950904

    E-Print Network [OSTI]

    Shelah, Saharon

    291 revision:1995­09­04 modified:1995­09­04 A Variety with Solvable, but not Uniformly Solvable #12; 291 revision:1995­09­04 modified:1995­09­04 Abstract In the literature two notions decidable, word problem. Other related examples are given as well. #12; 291 revision:1995

  11. revision:19950923 modified:19950923

    E-Print Network [OSTI]

    Shelah, Saharon

    (456) revision:1995­09­23 modified:1995­09­23 UNIVERSAL IN (­Israel Binational Science Foundation; Pub. No.456 Typeset by A M S­T E X 1 #12; (456) revision:1995­09­23 modified:1995­09­23 2 SAHARON SHELAH We deal with the existence of reduced separable (abelian) groups

  12. revision:20040330 modified:20040330

    E-Print Network [OSTI]

    Shelah, Saharon

    E43 revision:2004­03­30 modified:2004­03­30 # # # # Revised GCH Saharon Shelah March 28, 2004 shelah@math.huji.ac.il The Hebrew University of Jerusalem Rutgers University 1 #12; E43 revision:2004­03­30 modified:2004­03­30 # # # # Dedicated to Azriel Levy Papers are available from Mathematics arXive http

  13. Energy Intensity Strategy

    E-Print Network [OSTI]

    Rappolee, D.; Shaw, J.

    2008-01-01

    Our presentation will cover how we began the journey of conserving energy at our facility. Well discuss a basic layout of our energy intensity plan and the impact our team has had on the process, what tools were using, what goals have been...

  14. French intensive truck garden

    SciTech Connect (OSTI)

    Edwards, T D

    1983-01-01

    The French Intensive approach to truck gardening has the potential to provide substantially higher yields and lower per acre costs than do conventional farming techniques. It was the intent of this grant to show that there is the potential to accomplish the gains that the French Intensive method has to offer. It is obvious that locally grown food can greatly reduce transportation energy costs but when there is the consideration of higher efficiencies there will also be energy cost reductions due to lower fertilizer and pesticide useage. As with any farming technique, there is a substantial time interval for complete soil recovery after there have been made substantial soil modifications. There were major crop improvements even though there was such a short time since the soil had been greatly disturbed. It was also the intent of this grant to accomplish two other major objectives: first, the garden was managed under organic techniques which meant that there were no chemical fertilizers or synthetic pesticides to be used. Second, the garden was constructed so that a handicapped person in a wheelchair could manage and have a higher degree of self sufficiency with the garden. As an overall result, I would say that the garden has taken the first step of success and each year should become better.

  15. High intensity femtosecond enhancement cavities

    E-Print Network [OSTI]

    Abram, Gilberto

    2009-01-01

    To produce extreme ultraviolet radiation via high harmonic generation (HHG) in rare gases, light intensities in excess of 1014 W/cm 2 are required. Usually such high intensity are obtained by parametric amplification of ...

  16. Intensity Frontier Instrumentation

    SciTech Connect (OSTI)

    Kettell S.; Rameika, R.; Tshirhart, B.

    2013-09-24

    The fundamental origin of flavor in the Standard Model (SM) remains a mystery. Despite the roughly eighty years since Rabi asked Who ordered that? upon learning of the discovery of the muon, we have not understood the reason that there are three generations or, more recently, why the quark and neutrino mixing matrices and masses are so different. The solution to the flavor problem would give profound insights into physics beyond the Standard Model (BSM) and tell us about the couplings and the mass scale at which the next level of insight can be found. The SM fails to explain all observed phenomena: new interactions and yet unseen particles must exist. They may manifest themselves by causing SM reactions to differ from often very precise predictions. The Intensity Frontier (1) explores these fundamental questions by searching for new physics in extremely rare processes or those forbidden in the SM. This often requires massive and/or extremely finely tuned detectors.

  17. Accelerators for Intensity Frontier Research

    SciTech Connect (OSTI)

    Derwent, Paul; /Fermilab

    2012-05-11

    In 2008, the Particle Physics Project Prioritization Panel identified three frontiers for research in high energy physics, the Energy Frontier, the Intensity Frontier, and the Cosmic Frontier. In this paper, I will describe how Fermilab is configuring and upgrading the accelerator complex, prior to the development of Project X, in support of the Intensity Frontier.

  18. Demoing the Modified TALON Robot

    Broader source: Energy.gov [DOE]

    A technician at Idaho National Laboratory demonstrates the modified TALON robot; which is being sent to assist emergency workers at Japan's Fukishima nuclear reactor.

  19. Gamma radiation field intensity meter

    DOE Patents [OSTI]

    Thacker, L.H.

    1995-10-17

    A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

  20. Gamma radiation field intensity meter

    DOE Patents [OSTI]

    Thacker, L.H.

    1994-08-16

    A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode. 4 figs.

  1. Gamma radiation field intensity meter

    DOE Patents [OSTI]

    Thacker, Louis H. (Knoxville, TN)

    1995-01-01

    A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

  2. Gamma radiation field intensity meter

    DOE Patents [OSTI]

    Thacker, Louis H. (Knoxville, TN)

    1994-01-01

    A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

  3. Relativistic MOND from Modified Energetics

    E-Print Network [OSTI]

    Durmus Ali Demir; Canan Nurhan Karahan

    2014-08-22

    We begin to investigate the question of what modifications in energy-momentum tensor can yield correct MOND regime. As a starting study, we refrain from insisting on an action principle and focus exclusively on the equations of motion. The present work, despite the absence of an explicit action functional, can be regarded to extend Milgrom's modified inertia approach to relativistic domain. Our results show that a proper MOND limit arises if energy-momentum tensor is modified to involve determinant of the metric tensor in reference to the flat metric, where the latter is dynamically generated as in gravitational Higgs mechanism. This modified energy-momentum tensor is conserved in both Newtonian and MONDian regimes.

  4. Relativistic MOND from Modified Energetics

    E-Print Network [OSTI]

    Demir, Durmus Ali

    2014-01-01

    We begin to investigate the question of what modifications in energy-momentum tensor can yield correct MOND regime. As a starting study, we refrain from insisting on an action principle and focus exclusively on the equations of motion. The present work, despite the absence of an explicit action functional, can be regarded to extend Milgrom's modified inertia approach to relativistic domain. Our results show that a proper MOND limit arises if energy-momentum tensor is modified to involve determinant of the metric tensor in reference to the flat metric, where the latter is dynamically generated as in gravitational Higgs mechanism. This modified energy-momentum tensor is conserved in both Newtonian and MONDian regimes.

  5. Modified Acyl-ACP desaturase

    DOE Patents [OSTI]

    Cahoon, E.B.; Shanklin, J.; Lindqvist, Y.; Schneider, G.

    1999-03-30

    Disclosed is a method for modifying the chain length and double bond positional specificities of a soluble plant fatty acid desaturase. More specifically, the method involves modifying amino acid contact residues in the substrate binding channel of the soluble fatty acid desaturase which contact the fatty acid. Specifically disclosed is the modification of an acyl-ACP desaturase. Amino acid contact residues which lie within the substrate binding channel are identified, and subsequently replaced with different residues to effect the modification of activity. 2 figs.

  6. Neutrino physics with an intense \

    E-Print Network [OSTI]

    R. Henning

    2010-11-16

    We study some of the physics potential of an intense $1\\,\\mathrm{MCi}$ $^{51}\\mathrm{Cr}$ source combined with the {\\sc Majorana Demonstrator} enriched germanium detector array. The {\\sc Demonstrator} will consist of detectors with ultra-low radioactive backgrounds and extremely low energy thresholds of~$\\sim 400\\,\\mathrm{eV}$. We show that it can improve the current limit on the neutrino magnetic dipole moment. We briefly discuss physics applications of the charged-current reaction of the $^{51}\\mathrm{Cr} neutrino with the $^{73}\\mathrm{Ge} isotope. Finally, we argue that the rate from a realistic, intense tritium source is below the detectable limit of even a tonne-scale HPGe experiment

  7. Cosmological Hints of Modified Gravity ?

    E-Print Network [OSTI]

    Eleonora Di Valentino; Alessandro Melchiorri; Joseph Silk

    2015-09-24

    The recent measurements of Cosmic Microwave Background temperature and polarization anisotropies made by the Planck satellite have provided impressive confirmation of the $\\Lambda$CDM cosmological model. However interesting hints of slight deviations from $\\Lambda$CDM have been found, including a $95 \\%$ c.l. preference for a "modified gravity" structure formation scenario. In this paper we confirm the preference for a modified gravity scenario from Planck 2015 data, find that modified gravity solves the so-called $A_{lens}$ anomaly in the CMB angular spectrum, and constrains the amplitude of matter density fluctuations to $\\sigma_8=0.815_{-0.048}^{+0.032}$, in better agreement with weak lensing constraints. Moreover, we find a lower value for the reionization optical depth of $\\tau=0.059\\pm0.020$ (to be compared with the value of $\\tau= 0.079 \\pm 0.017$ obtained in the standard scenario), more consistent with recent optical and UV data. We check the stability of this result by considering possible degeneracies with other parameters, including the neutrino effective number, the running of the spectral index and the amount of primordial helium. The indication for modified gravity is still present at about $95\\%$ c.l., and could become more significant if lower values of $\\tau$ were to be further confirmed by future cosmological and astrophysical data.

  8. High Intensity Polarized Electron Gun

    SciTech Connect (OSTI)

    Redwine, Robert P.

    2012-07-31

    The goal of the project was to investigate the possibility of building a very high intensity polarized electron gun for the Electron-Ion Collider. This development is crucial for the eRHIC project. The gun implements a large area cathode, ring-shaped laser beam and active cathode cooling. A polarized electron gun chamber with a large area cathode and active cathode cooling has been built and tested. A preparation chamber for cathode activation has been built and initial tests have been performed. Major parts for a load-lock chamber, where cathodes are loaded into the vacuum system, have been manufactured.

  9. Cosmological Hints of Modified Gravity ?

    E-Print Network [OSTI]

    Di Valentino, Eleonora; Silk, Joseph

    2015-01-01

    The recent measurements of Cosmic Microwave Background temperature and polarization anisotropies made by the Planck satellite have provided impressive confirmation of the $\\Lambda$CDM cosmological model. However interesting hints of slight deviations from $\\Lambda$CDM have been found, including a $95 \\%$ c.l. preference for a "modified gravity" structure formation scenario. In this paper we confirm the preference for a modified gravity scenario from Planck 2015 data, find that modified gravity solves the so-called $A_{lens}$ anomaly in the CMB angular spectrum, and constrains the amplitude of matter density fluctuations to $\\sigma_8=0.815_{-0.048}^{+0.032}$, in better agreement with weak lensing constraints. Moreover, we find a lower value for the reionization optical depth of $\\tau=0.059\\pm0.020$ (to be compared with the value of $\\tau= 0.079 \\pm 0.017$ obtained in the standard scenario), more consistent with recent optical and UV data. We check the stability of this result by considering possible degeneraci...

  10. Experimental transport of intensity diffraction tomography

    E-Print Network [OSTI]

    Lee, Justin Wu

    2011-01-01

    In this thesis, I perform intensity-based tomographic phase imaging in two ways. First, I utilize the paraxial transport of intensity equation (TIE) to construct phase maps of a phase object at multiple projection angles ...

  11. Control Intensive Planning Planet 2003 Summer School

    E-Print Network [OSTI]

    Bacchus, Fahiem

    in efficiency. Why not utilize that knowledge! Control Intensive Planning/F. Bacchus p.2/131 #12;Goals Control Intensive planning involves finding ways to build and utilize richer domain models so as to support more utilize Forward Chaining. B C A C C A B A B pickup(A) unstack(B) Control Intensive Planning/F. Bacchus p

  12. HI intensity mapping with FAST

    E-Print Network [OSTI]

    Bigot-Sazy, Marie-Anne; Battye, Richard A; Browne, Ian W A; Chen, Tianyue; Dickinson, Clive; Harper, Stuart; Maffei, Bruno; Olivari, Lucas C; Wilkinson, Peter N

    2015-01-01

    We discuss the detectability of large-scale HI intensity fluctuations using the FAST telescope. We present forecasts for the accuracy of measuring the Baryonic Acoustic Oscillations and constraining the properties of dark energy. The FAST $19$-beam L-band receivers ($1.05$--$1.45$ GHz) can provide constraints on the matter power spectrum and dark energy equation of state parameters ($w_{0},w_{a}$) that are comparable to the BINGO and CHIME experiments. For one year of integration time we find that the optimal survey area is $6000\\,{\\rm deg}^2$. However, observing with larger frequency coverage at higher redshift ($0.95$--$1.35$ GHz) improves the projected errorbars on the HI power spectrum by more than $2~\\sigma$ confidence level. The combined constraints from FAST, CHIME, BINGO and Planck CMB observations can provide reliable, stringent constraints on the dark energy equation of state.

  13. Beam intensity upgrade at Fermilab

    SciTech Connect (OSTI)

    Marchionni, A.; /Fermilab

    2006-07-01

    The performance of the Fermilab proton accelerator complex is reviewed. The coming into operation of the NuMI neutrino line and the implementation of slip-stacking to increase the anti-proton production rate has pushed the total beam intensity in the Main Injector up to {approx} 3 x 10{sup 13} protons/pulse. A maximum beam power of 270 kW has been delivered on the NuMI target during the first year of operation. A plan is in place to increase it to 350 kW, in parallel with the operation of the Collider program. As more machines of the Fermilab complex become available with the termination of the Collider operation, a set of upgrades are being planned to reach first 700 kW and then 1.2 MW by reducing the Main Injector cycle time and by implementing proton stacking.

  14. SCIENCE AT THE CROSSROADS Genetically Modified Foods

    E-Print Network [OSTI]

    Newman, Stuart A.

    SCIENCE AT THE CROSSROADS Genetically Modified Foods and the Attack on Nature Stuart A. NewmanBy:[Newman,StuartA.]At:16:493July2009 #12;about, genetically modified (GM) food as scientifically ignorant, economically and Arpad Pusztai, ``Effect of Diets Containing Genetically Modified Potatoes Expressing galanthus nivalis

  15. Modified Entropic Gravity and Cosmology

    E-Print Network [OSTI]

    Miguel Zumalacarregui

    2012-02-06

    It has been recently proposed that gravity might be an entropic force. Although a well defined fundamental description for such a mechanism is still lacking, it is still possible to address the viability of phenomenological models of entropic-inspired modified gravities. I will summarize some recent work directed to using cosmology as a tool to constraint scenarios in which the modifications are aimed to explain the physics behind dark energy and inflation. A phenomenological modification is able to explain cosmic acceleration at the background level and fit observations, but simple inflation models with higher curvature corrections are in conflict with late time matter domination.

  16. Adhesives from modified soy protein

    DOE Patents [OSTI]

    Sun, Susan (Manhattan, KS); Wang, Donghai (Manhattan, KS); Zhong, Zhikai (Manhattan, KS); Yang, Guang (Shanghai, CN)

    2008-08-26

    The, present invention provides useful adhesive compositions having similar adhesive properties to conventional UF and PPF resins. The compositions generally include a protein portion and modifying ingredient portion selected from the group consisting of carboxyl-containing compounds, aldehyde-containing compounds, epoxy group-containing compounds, and mixtures thereof. The composition is preferably prepared at a pH level at or near the isoelectric point of the protein. In other preferred forms, the adhesive composition includes a protein portion and a carboxyl-containing group portion.

  17. SUMMARY OF 2009 RHEOLOGY MODIFIER PROGRAM

    SciTech Connect (OSTI)

    Hansen, E.

    2009-12-08

    The overall objective of the EM-31 Rheological Modifiers and Wetting Agents program is to utilize commercially available rheology modifiers to increase the solids fraction of radioactive sludge based waste streams, resulting in an increase in throughput and decreasing the overall processing time. The program first investigates the impact of rheology modifiers on slurry simulants and then utilizes the most effective rheology modifiers on radioactive slurries. The work presented in this document covers the initial investigation of rheology modifier testing with simulants. This task is supported by both the Savannah River National Laboratory (SRNL) and Pacific Northwest National Laboratory (PNNL). The SRNL EM-31 task, for this year, was to investigate the use of rheology modifiers on simulant Defense Waste Processing Facility (DWPF) melter feeds. The task is to determine, based on the impact of the rheology modifier, if there are rheology modifiers that could reduce the water content of the slurry going to the DWPF melter, hence increasing the melt rate by decreasing the water loading. The rheology modifier in essence would allow a higher solids content slurry to have the same type of rheology or pumpability of a lower solids slurry. The modifiers selected in this report were determined based on previous modifiers used in high level waste melter feed simulants, on-going testing performed by counterparts at PNNL, and experiences gain through use of modifiers in other Department of Energy (DOE) processes such as grout processing. There were 12 rheology modifiers selected for testing, covering both organic and inorganic types and they were tested at four different concentrations for a given melter feed. Five different DWPF melter feeds were available and there was adequate material in one of the melter feeds to increase the solids concentration, resulting in a total of six simulants for testing. The mass of melter feed available in each simulant was not adequate for testing each rheology modifier, hence based on the changes in rheology for a given rheology modifier, rheology modifiers were either dropped or added between simulants. Three rheology modifiers were used on all simulants. The results from this testing indicate that citric acid or polycarboxylate based rheology modifiers are the most effective in reducing the yield stress, by as much as 70% at the higher rheology modifier additions and were effective on most of the tested simulants. These rheology modifiers are organic, hence the can also be used as reductants in melter operations. The most effective non-organic rheology modifiers, sodium metasilicate reduced the yield stress by 10%. It is recommended that both citric acid and commercially available polycarboxylate rheology modifiers be further investigated. Different molecular weight polycarboxylates and different types of polycarboxylates used in other industries must be considered. These polycarboxylates are extensively utilized in the cement, ceramic, and water treatment processes, hence readily available. Future work on DWPF melter feeds involving rheology modifiers should include, assuming the present method of processing sludge through DPWF does not change, is: (1) Investigate the use of polycarboxylate in various processes and procure polycarboxylates for testing. Limit rheology modifier selection and future testing between four and eight different types. (2) Test rheology modifiers on at least two different chemical types or bounding DWPF SME product simulants. Test to include the impact of boiling and the effectiveness in reducing water content via rheology versus weight percent curves. (3) Based on selected modifiers, perform testing on actual radioactive melter feed based on results from simulant testing.

  18. Energy Intensity Baselining and Tracking Guidance

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

    betterbuildings.energy.gov Energy Intensity Baselining and Tracking Guidance i Preface The U.S. Department of Energy's (DOE's) Better Buildings, Better Plants Program (Better...

  19. Energy Intensity Indicators: Terminology and Definitions

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Energy Intensity Indicators website uses the following terms with their associated definitions. The terms related to various definitions of energy are discussed first.

  20. Fundamental Physics at the Intensity Frontier

    E-Print Network [OSTI]

    J. L. Hewett; H. Weerts; R. Brock; J. N. Butler; B. C. K. Casey; J. Collar; A. de Gouvea; R. Essig; Y. Grossman; W. Haxton; J. A. Jaros; C. K. Jung; Z. T. Lu; K. Pitts; Z. Ligeti; J. R. Patterson; M. Ramsey-Musolf; J. L. Ritchie; A. Roodman; K. Scholberg; C. E. M. Wagner; G. P. Zeller; S. Aefsky; A. Afanasev; K. Agashe; C. Albright; J. Alonso; C. Ankenbrandt; M. Aoki; C. A. Arguelles; N. Arkani-Hamed; J. R. Armendariz; C. Armendariz-Picon; E. Arrieta Diaz; J. Asaadi; D. M. Asner; K. S. Babu; K. Bailey; O. Baker; B. Balantekin; B. Baller; M. Bass; B. Batell; J. Beacham; J. Behr; N. Berger; M. Bergevin; E. Berman; R. Bernstein; A. J. Bevan; M. Bishai; M. Blanke; S. Blessing; A. Blondel; T. Blum; G. Bock; A. Bodek; G. Bonvicini; F. Bossi; J. Boyce; R. Breedon; M. Breidenbach; S. J. Brice; R. A. Briere; S. Brodsky; C. Bromberg; A. Bross; T. E. Browder; D. A. Bryman; M. Buckley; R. Burnstein; E. Caden; P. Campana; R. Carlini; G. Carosi; C. Castromonte; R. Cenci; I. Chakaberia; M. C. Chen; C. H. Cheng; B. Choudhary; N. H. Christ; E. Christensen; M. E. Christy; T. E. Chupp; E. Church; D. B. Cline; T. E. Coan; P. Coloma; J. Comfort; L. Coney; J. Cooper; R. J. Cooper; R. Cowan; D. F. Cowen; D. Cronin-Hennessy; A. Datta; G. S. Davies; M. Demarteau; D. P. DeMille; A. Denig; R. Dermisek; A. Deshpande; M. S. Dewey; R. Dharmapalan; J. Dhooghe; M. R. Dietrich; M. Diwan; Z. Djurcic; S. Dobbs; M. Duraisamy; B. Dutta; H. Duyang; D. A. Dwyer; M. Eads; B. Echenard; S. R. Elliott; C. Escobar; J. Fajans; S. Farooq; C. Faroughy; J. E. Fast; B. Feinberg; J. Felde; G. Feldman; P. Fierlinger; P. Fileviez Perez; B. Filippone; P. Fisher; B. T. Flemming; K. T. Flood; R. Forty; M. J. Frank; A. Freyberger; A. Friedland; R. Gandhi; K. S. Ganezer; A. Garcia; F. G. Garcia; S. Gardner; L. Garrison; A. Gasparian; S. Geer; V. M. Gehman; T. Gershon; M. Gilchriese; C. Ginsberg; I. Gogoladze; M. Gonderinger; M. Goodman; H. Gould; M. Graham; P. W. Graham; R. Gran; J. Grange; G. Gratta; J. P. Green; H. Greenlee; R. C. Group; E. Guardincerri; V. Gudkov; R. Guenette; A. Haas; A. Hahn; T. Han; T. Handler; J. C. Hardy; R. Harnik; D. A. Harris; F. A. Harris; P. G. Harris; J. Hartnett; B. He; B. R. Heckel; K. M. Heeger; S. Henderson; D. Hertzog; R. Hill; E. A Hinds; D. G. Hitlin; R. J. Holt; N. Holtkamp; G. Horton-Smith; P. Huber; W. Huelsnitz; J. Imber; I. Irastorza; J. Jaeckel; I. Jaegle; C. James; A. Jawahery; D. Jensen; C. P. Jessop; B. Jones; H. Jostlein; T. Junk; A. L. Kagan; M. Kalita; Y. Kamyshkov; D. M. Kaplan; G. Karagiorgi; A. Karle; T. Katori; B. Kayser; R. Kephart; S. Kettell; Y. K. Kim; M. Kirby; K. Kirch; J. Klein; J. Kneller; A. Kobach; M. Kohl; J. Kopp; M. Kordosky; W. Korsch; I. Kourbanis; A. D. Krisch; P. Krizan; A. S. Kronfeld; S. Kulkarni; K. S. Kumar; Y. Kuno; T. Kutter; T. Lachenmaier; M. Lamm; J. Lancaster; M. Lancaster; C. Lane; K. Lang; P. Langacker; S. Lazarevic; T. Le; K. Lee; K. T. Lesko; Y. Li; M. Lindgren; A. Lindner; J. Link; D. Lissauer; L. S. Littenberg; B. Littlejohn; C. Y. Liu; W. Loinaz; W. Lorenzon; W. C. Louis; J. Lozier; L. Ludovici; L. Lueking; C. Lunardini; D. B. MacFarlane; P. A. N. Machado; P. B. Mackenzie; J. Maloney; W. J. Marciano; W. Marsh; M. Marshak; J. W. Martin; C. Mauger; K. S. McFarland; C. McGrew; G. McLaughlin; D. McKeen; R. McKeown; B. T. Meadows; R. Mehdiyev; D. Melconian; H. Merkel; M. Messier; J. P. Miller; G. Mills; U. K. Minamisono; S. R. Mishra; I. Mocioiu; S. Moed Sher; R. N. Mohapatra; B. Monreal; C. D. Moore; J. G. Morfin; J. Mousseau; L. A. Moustakas; G. Mueller; P. Mueller; M. Muether; H. P. Mumm; C. Munger; H. Murayama; P. Nath; O. Naviliat-Cuncin; J. K. Nelson; D. Neuffer; J. S. Nico; A. Norman; D. Nygren; Y. Obayashi; T. P. O'Connor; Y. Okada; J. Olsen; L. Orozco; J. L. Orrell; J. Osta; B. Pahlka; J. Paley; V. Papadimitriou; M. Papucci; S. Parke; R. H. Parker; Z. Parsa; K. Partyka; A. Patch; J. C. Pati; R. B. Patterson; Z. Pavlovic; G. Paz; G. N. Perdue; D. Perevalov; G. Perez; R. Petti; W. Pettus; A. Piepke; M. Pivovaroff; R. Plunkett; C. C. Polly; M. Pospelov; R. Povey; A. Prakesh; M. V. Purohit; S. Raby; J. L. Raaf; R. Rajendran; S. Rajendran; G. Rameika; R. Ramsey; A. Rashed; B. N. Ratcliff; B. Rebel; J. Redondo; P. Reimer; D. Reitzner; F. Ringer; A. Ringwald; S. Riordan; B. L. Roberts; D. A. Roberts; R. Robertson; F. Robicheaux; M. Rominsky; R. Roser; J. L. Rosner; C. Rott; P. Rubin; N. Saito; M. Sanchez; S. Sarkar; H. Schellman; B. Schmidt; M. Schmitt; D. W. Schmitz; J. Schneps; A. Schopper; P. Schuster; A. J. Schwartz; M. Schwarz; J. Seeman; Y. K. Semertzidis; K. K. Seth; Q. Shafi; P. Shanahan; R. Sharma; S. R. Sharpe; M. Shiozawa; V. Shiltsev; K. Sigurdson; P. Sikivie; J. Singh; D. Sivers; T. Skwarnicki; N. Smith; J. Sobczyk; H. Sobel; M. Soderberg; Y. H. Song; A. Soni; P. Souder; A. Sousa; J. Spitz; M. Stancari; G. C. Stavenga; J. H. Steffen

    2012-05-11

    The Proceedings of the 2011 workshop on Fundamental Physics at the Intensity Frontier. Science opportunities at the intensity frontier are identified and described in the areas of heavy quarks, charged leptons, neutrinos, proton decay, new light weakly-coupled particles, and nucleons, nuclei, and atoms.

  1. Fundamental Physics at the Intensity Frontier

    E-Print Network [OSTI]

    Hewett, J L; Brock, R; Butler, J N; Casey, B C K; Collar, J; de Gouvea, A; Essig, R; Grossman, Y; Haxton, W; Jaros, J A; Jung, C K; Lu, Z T; Pitts, K; Ligeti, Z; Patterson, J R; Ramsey-Musolf, M; Ritchie, J L; Roodman, A; Scholberg, K; Wagner, C E M; Zeller, G P; Aefsky, S; Afanasev, A; Agashe, K; Albright, C; Alonso, J; Ankenbrandt, C; Aoki, M; Arguelles, C A; Arkani-Hamed, N; Armendariz, J R; Armendariz-Picon, C; Diaz, E Arrieta; Asaadi, J; Asner, D M; Babu, K S; Bailey, K; Baker, O; Balantekin, B; Baller, B; Bass, M; Batell, B; Beacham, J; Behr, J; Berger, N; Bergevin, M; Berman, E; Bernstein, R; Bevan, A J; Bishai, M; Blanke, M; Blessing, S; Blondel, A; Blum, T; Bock, G; Bodek, A; Bonvicini, G; Bossi, F; Boyce, J; Breedon, R; Breidenbach, M; Brice, S J; Briere, R A; Brodsky, S; Bromberg, C; Bross, A; Browder, T E; Bryman, D A; Buckley, M; Burnstein, R; Caden, E; Campana, P; Carlini, R; Carosi, G; Castromonte, C; Cenci, R; Chakaberia, I; Chen, M C; Cheng, C H; Choudhary, B; Christ, N H; Christensen, E; Christy, M E; Chupp, T E; Church, E; Cline, D B; Coan, T E; Coloma, P; Comfort, J; Coney, L; Cooper, J; Cooper, R J; Cowan, R; Cowen, D F; Cronin-Hennessy, D; Datta, A; Davies, G S; Demarteau, M; DeMille, D P; Denig, A; Dermisek, R; Deshpande, A; Dewey, M S; Dharmapalan, R; Dhooghe, J; Dietrich, M R; Diwan, M; Djurcic, Z; Dobbs, S; Duraisamy, M; Dutta, B; Duyang, H; Dwyer, D A; Eads, M; Echenard, B; Elliott, S R; Escobar, C; Fajans, J; Farooq, S; Faroughy, C; Fast, J E; Feinberg, B; Felde, J; Feldman, G; Fierlinger, P; Perez, P Fileviez; Filippone, B; Fisher, P; Flemming, B T; Flood, K T; Forty, R; Frank, M J; Freyberger, A; Friedland, A; Gandhi, R; Ganezer, K S; Garcia, A; Garcia, F G; Gardner, S; Garrison, L; Gasparian, A; Geer, S; Gehman, V M; Gershon, T; Gilchriese, M; Ginsberg, C; Gogoladze, I; Gonderinger, M; Goodman, M; Gould, H; Graham, M; Graham, P W; Gran, R; Grange, J; Gratta, G; Green, J P; Greenlee, H; Guardincerri, E; Gudkov, V; Guenette, R; Haas, A; Hahn, A; Han, T; Handler, T; Hardy, J C; Harnik, R; Harris, D A; Harris, F A; Harris, P G; Hartnett, J; He, B; Heckel, B R; Heeger, K M; Henderson, S; Hertzog, D; Hill, R; Hinds, E A; Hitlin, D G; Holt, R J; Holtkamp, N; Horton-Smith, G; Huber, P; Huelsnitz, W; Imber, J; Irastorza, I; Jaeckel, J; Jaegle, I; James, C; Jawahery, A; Jensen, D; Jessop, C P; Jones, B; Jostlein, H; Junk, T; Kagan, A L; Kalita, M; Kamyshkov, Y; Kaplan, D M; Karagiorgi, G; Karle, A; Katori, T; Kayser, B; Kephart, R; Kettell, S; Kim, Y K; Kirby, M; Kirch, K; Klein, J; Kneller, J; Kobach, A; Kohl, M; Kopp, J; Kordosky, M; Korsch, W; Kourbanis, I; Krisch, A D; Krizan, P; Kronfeld, A S; Kulkarni, S; Kumar, K S; Kuno, Y; Kutter, T; Lachenmaier, T; Lamm, M; Lancaster, J; Lancaster, M; Lane, C; Lang, K; Langacker, P; Lazarevic, S; Le, T; Lee, K; Lesko, K T; Li, Y; Lindgren, M; Lindner, A; Link, J; Lissauer, D; Littenberg, L S; Littlejohn, B; Liu, C Y; Loinaz, W; Lorenzon, W; Louis, W C; Lozier, J; Ludovici, L; Lueking, L; Lunardini, C; MacFarlane, D B; Machado, P A N; Mackenzie, P B; Maloney, J; Marciano, W J; Marsh, W; Marshak, M; Martin, J W; Mauger, C; McFarland, K S; McGrew, C; McLaughlin, G; McKeen, D; McKeown, R; Meadows, B T; Mehdiyev, R; Melconian, D; Merkel, H; Messier, M; Miller, J P; Mills, G; Minamisono, U K; Mishra, S R; Mocioiu, I; Sher, S Moed; Mohapatra, R N; Monreal, B; Moore, C D; Morfin, J G; Mousseau, J; Moustakas, L A; Mueller, G; Mueller, P; Muether, M; Mumm, H P; Munger, C; Murayama, H; Nath, P; Naviliat-Cuncin, O; Nelson, J K; Neuffer, D; Nico, J S; Norman, A; Nygren, D; Obayashi, Y; O'Connor, T P; Okada, Y; Olsen, J; Orozco, L; Orrell, J L; Osta, J; Pahlka, B; Paley, J; Papadimitriou, V; Papucci, M; Parke, S; Parker, R H; Parsa, Z; Partyka, K; Patch, A; Pati, J C; Patterson, R B; Pavlovic, Z; Paz, G; Perdue, G N; Perevalov, D; Perez, G; Petti, R; Pettus, W; Piepke, A; Pivovaroff, M; Plunkett, R; Polly, C C; Pospelov, M; Povey, R; Prakesh, A; Purohit, M V; Raby, S; Raaf, J L; Rajendran, R; Rajendran, S; Rameika, G; Ramsey, R; Rashed, A; Ratcliff, B N; Rebel, B; Redondo, J; Reimer, P; Reitzner, D; Ringer, F; Ringwald, A; Riordan, S; Roberts, B L; Roberts, D A; Robertson, R; Robicheaux, F; Rominsky, M; Roser, R; Rosner, J L; Rott, C; Rubin, P; Saito, N; Sanchez, M; Sarkar, S; Schellman, H; Schmidt, B; Schmitt, M; Schmitz, D W; Schneps, J; Schopper, A; Schuster, P; Schwartz, A J; Schwarz, M; Seeman, J; Semertzidis, Y K; Seth, K K; Shafi, Q; Shanahan, P; Sharma, R; Sharpe, S R; Shiozawa, M; Shiltsev, V; Sigurdson, K; Sikivie, P; Singh, J; Sivers, D; Skwarnicki, T; Smith, N; Sobczyk, J; Sobel, H; Soderberg, M; Song, Y H; Soni, A; Souder, P; Sousa, A; Spitz, J; Stancari, M; Stavenga, G C; Steffen, J H; Stepanyan, S; Stoeckinger, D; Stone, S; Strait, J; Strassler, M; Sulai, I A; Sundrum, R; Svoboda, R; Szczerbinska, B; Szelc, A; Takeuchi, T; Tanedo, P

    2012-01-01

    The Proceedings of the 2011 workshop on Fundamental Physics at the Intensity Frontier. Science opportunities at the intensity frontier are identified and described in the areas of heavy quarks, charged leptons, neutrinos, proton decay, new light weakly-coupled particles, and nucleons, nuclei, and atoms.

  2. Service Assessment Intense Space Weather Storms

    E-Print Network [OSTI]

    Schrijver, Karel

    Service Assessment Intense Space Weather Storms October 19 November 07, 2003 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Weather Service Silver Spring, Maryland image. #12;Service Assessment Intense Space Weather Storms October 19 November 07, 2003 April 2004 U

  3. Nonderivative modified gravity: a classification

    SciTech Connect (OSTI)

    Comelli, D.; Nesti, F.; Pilo, L. E-mail: fabrizio.nesti@irb.hr

    2014-11-01

    We analyze the theories of gravity modified by a generic nonderivative potential built from the metric, under the minimal requirement of unbroken spatial rotations. Using the canonical analysis, we classify the potentials V according to the number of degrees of freedom (DoF) that propagate at the nonperturbative level. We then compare the nonperturbative results with the perturbative DoF propagating around Minkowski and FRW backgrounds. A generic V implies 6 propagating DoF at the non-perturbative level, with a ghost on Minkowski background. There exist potentials which propagate 5 DoF, as already studied in previous works. Here, no V with unbroken rotational invariance admitting 4 DoF is found. Theories with 3 DoF turn out to be strongly coupled on Minkowski background. Finally, potentials with only the 2 DoF of a massive graviton exist. Their effect on cosmology is simply equivalent to a cosmological constant. Potentials with 2 or 5 DoF and explicit time dependence appear to be a further viable possibility.

  4. Modeling Data-Intensive Web Sites 259 ModelingData-Intensive

    E-Print Network [OSTI]

    Modeling Data-Intensive Web Sites 259 ChapterXII ModelingData-Intensive Web Sites-by-stepapproachtothedesign,implementation and management of a Data-Intensive Web Site (DIWS). The approach introduces five data formulation is that of "Web fragments," that is an information decomposition technique that aids design, implementation

  5. Techniques for optically compressing light intensity ranges

    SciTech Connect (OSTI)

    Rushford, Michael C.

    1989-01-01

    A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter.

  6. Techniques for optically compressing light intensity ranges

    DOE Patents [OSTI]

    Rushford, M.C.

    1989-03-28

    A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter. 18 figs.

  7. Energy Intensity Indicators: Commercial Source Energy Consumption

    Broader source: Energy.gov [DOE]

    Figure C1 below reports as index numbers over the period 1970 through 2011: 1) commercial building floor space, 2) energy use based on source energy consumption, 3) energy intensity, and 4) the...

  8. Building dependability arguments for software intensive systems

    E-Print Network [OSTI]

    Seater, Robert Morrison

    2009-01-01

    A method is introduced for structuring and guiding the development of end-to-end dependability arguments. The goal is to establish high-level requirements of complex software-intensive systems, especially properties that ...

  9. Technical Change, Investment and Energy Intensity

    E-Print Network [OSTI]

    Kratena, Kurt

    This paper analyzes the role of different components of technical change on energy intensity by applying a Translog variable cost function setting to the new EU KLEMS dataset for 3 selected EU countries (Italy, Finland and ...

  10. Absolute vs. intensity-based emission caps

    E-Print Network [OSTI]

    Ellerman, A. Denny.

    Cap-and-trade systems limit emissions to some pre-specified absolute quantity. Intensity-based limits, that restrict emissions to some pre-specified rate relative to input or output, are much more widely used in environmental ...

  11. Computational phase imaging based on intensity transport

    E-Print Network [OSTI]

    Waller, Laura A. (Laura Ann)

    2010-01-01

    Light is a wave, having both an amplitude and a phase. However, optical frequencies are too high to allow direct detection of phase; thus, our eyes and cameras see only real values - intensity. Phase carries important ...

  12. Applications in Data-Intensive Computing

    SciTech Connect (OSTI)

    Shah, Anuj R.; Adkins, Joshua N.; Baxter, Douglas J.; Cannon, William R.; Chavarra-Miranda, Daniel; Choudhury, Sutanay; Gorton, Ian; Gracio, Deborah K.; Halter, Todd D.; Jaitly, Navdeep; Johnson, John R.; Kouzes, Richard T.; Macduff, Matt C.; Marquez, Andres; Monroe, Matthew E.; Oehmen, Christopher S.; Pike, William A.; Scherrer, Chad; Villa, Oreste; Webb-Robertson, Bobbie-Jo M.; Whitney, Paul D.; Zuljevic, Nino

    2010-04-01

    This book chapter, to be published in Advances in Computers, Volume 78, in 2010 describes applications of data intensive computing (DIC). This is an invited chapter resulting from a previous publication on DIC. This work summarizes efforts coming out of the PNNL's Data Intensive Computing Initiative. Advances in technology have empowered individuals with the ability to generate digital content with mouse clicks and voice commands. Digital pictures, emails, text messages, home videos, audio, and webpages are common examples of digital content that are generated on a regular basis. Data intensive computing facilitates human understanding of complex problems. Data-intensive applications provide timely and meaningful analytical results in response to exponentially growing data complexity and associated analysis requirements through the development of new classes of software, algorithms, and hardware.

  13. Laser intensity effects in noncommutative QED

    E-Print Network [OSTI]

    Thomas Heinzl; Anton Ilderton; Mattias Marklund

    2010-02-17

    We discuss a two-fold extension of QED assuming the presence of strong external fields provided by an ultra-intense laser and noncommutativity of spacetime. While noncommutative effects leave the electron's intensity induced mass shift unchanged, the photons change significantly in character: they acquire a quasi-momentum that is no longer light-like. We study the consequences of this combined noncommutative strong-field effect for basic lepton-photon interactions.

  14. Nanoparticles modified with multiple organic acids

    DOE Patents [OSTI]

    Cook, Ronald Lee (Lakewood, CO); Luebben, Silvia DeVito (Golden, CO); Myers, Andrew William (Arvada, CO); Smith, Bryan Matthew (Boulder, CO); Elliott, Brian John (Superior, CO); Kreutzer, Cory (Brighton, CO); Wilson, Carolina (Arvada, CO); Meiser, Manfred (Aurora, CO)

    2007-07-17

    Surface-modified nanoparticles of boehmite, and methods for preparing the same. Aluminum oxyhydroxide nanoparticles are surface modified by reaction with selected amounts of organic acids. In particular, the nanoparticle surface is modified by reactions with two or more different carboxylic acids, at least one of which is an organic carboxylic acid. The product is a surface modified boehmite nanoparticle that has an inorganic aluminum oxyhydroxide core, or part aluminum oxyhydroxide core and a surface-bonded organic shell. Organic carboxylic acids of this invention contain at least one carboxylic acid group and one carbon-hydrogen bond. One embodiment of this invention provides boehmite nanoparticles that have been surface modified with two or more acids one of which additional carries at least one reactive functional group. Another embodiment of this invention provides boehmite nanoparticles that have been surface modified with multiple acids one of which has molecular weight or average molecular weight greater than or equal to 500 Daltons. Yet, another embodiment of this invention provides boehmite nanoparticles that are surface modified with two or more acids one of which is hydrophobic in nature and has solubility in water of less than 15 by weight. The products of the methods of this invention have specific useful properties when used in mixture with liquids, as filler in solids, or as stand-alone entities.

  15. Review Of Rheology Modifiers For Hanford Waste

    SciTech Connect (OSTI)

    Pareizs, J. M.

    2013-09-30

    As part of Savannah River National Laboratory (SRNL)'s strategic development scope for the Department of Energy - Office of River Protection (DOE-ORP) Hanford Tank Waste Treatment and Immobilization Plant (WTP) waste feed acceptance and product qualification scope, the SRNL has been requested to recommend candidate rheology modifiers to be evaluated to adjust slurry properties in the Hanford Tank Farm. SRNL has performed extensive testing of rheology modifiers for use with Defense Waste Processing Facility (DWPF) simulated melter feed - a high undissolved solids (UDS) mixture of simulated Savannah River Site (SRS) Tank Farm sludge, nitric and formic acids, and glass frit. A much smaller set of evaluations with Hanford simulated waste have also been completed. This report summarizes past work and recommends modifiers for further evaluation with Hanford simulated wastes followed by verification with actual waste samples. Based on the review of available data, a few compounds/systems appear to hold the most promise. For all types of evaluated simulated wastes (caustic Handford tank waste and DWPF processing samples with pH ranging from slightly acidic to slightly caustic), polyacrylic acid had positive impacts on rheology. Citric acid also showed improvement in yield stress on a wide variety of samples. It is recommended that both polyacrylic acid and citric acid be further evaluated as rheology modifiers for Hanford waste. These materials are weak organic acids with the following potential issues: The acidic nature of the modifiers may impact waste pH, if added in very large doses. If pH is significantly reduced by the modifier addition, dissolution of UDS and increased corrosion of tanks, piping, pumps, and other process equipment could occur. Smaller shifts in pH could reduce aluminum solubility, which would be expected to increase the yield stress of the sludge. Therefore, it is expected that use of an acidic modifier would be limited to concentrations that do not appreciably change the pH of the waste; Organics are typically reductants and could impact glass REDOX if not accounted for in the reductant addition calculations; Stability of the modifiers in a caustic, radioactive environment is not known, but some of the modifiers tested were specifically designed to withstand caustic conditions; These acids will add to the total organic carbon content of the wastes. Radiolytic decomposition of the acids could result in organic and hydrogen gas generation. These potential impacts must be addressed in future studies with simulants representative of real waste and finally with tests using actual waste based on the rheology differences seen between SRS simulants and actual waste. The only non-organic modifier evaluated was sodium metasilicate. Further evaluation of this modifier is recommended if a reducing modifier is a concern.

  16. ON COMPUTING UPPER LIMITS TO SOURCE INTENSITIES

    SciTech Connect (OSTI)

    Kashyap, Vinay L.; Siemiginowska, Aneta [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Van Dyk, David A.; Xu Jin [Department of Statistics, University of California, Irvine, CA 92697-1250 (United States); Connors, Alanna [Eureka Scientific, 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017 (United States); Freeman, Peter E. [Department of Statistics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213 (United States); Zezas, Andreas, E-mail: vkashyap@cfa.harvard.ed, E-mail: asiemiginowska@cfa.harvard.ed, E-mail: dvd@ics.uci.ed, E-mail: jinx@ics.uci.ed, E-mail: aconnors@eurekabayes.co, E-mail: pfreeman@cmu.ed, E-mail: azezas@cfa.harvard.ed [Physics Department, University of Crete, P.O. Box 2208, GR-710 03, Heraklion, Crete (Greece)

    2010-08-10

    A common problem in astrophysics is determining how bright a source could be and still not be detected in an observation. Despite the simplicity with which the problem can be stated, the solution involves complicated statistical issues that require careful analysis. In contrast to the more familiar confidence bound, this concept has never been formally analyzed, leading to a great variety of often ad hoc solutions. Here we formulate and describe the problem in a self-consistent manner. Detection significance is usually defined by the acceptable proportion of false positives (background fluctuations that are claimed as detections, or Type I error), and we invoke the complementary concept of false negatives (real sources that go undetected, or Type II error), based on the statistical power of a test, to compute an upper limit to the detectable source intensity. To determine the minimum intensity that a source must have for it to be detected, we first define a detection threshold and then compute the probabilities of detecting sources of various intensities at the given threshold. The intensity that corresponds to the specified Type II error probability defines that minimum intensity and is identified as the upper limit. Thus, an upper limit is a characteristic of the detection procedure rather than the strength of any particular source. It should not be confused with confidence intervals or other estimates of source intensity. This is particularly important given the large number of catalogs that are being generated from increasingly sensitive surveys. We discuss, with examples, the differences between these upper limits and confidence bounds. Both measures are useful quantities that should be reported in order to extract the most science from catalogs, though they answer different statistical questions: an upper bound describes an inference range on the source intensity, while an upper limit calibrates the detection process. We provide a recipe for computing upper limits that applies to all detection algorithms.

  17. Poplar trees could be genetically modified to

    E-Print Network [OSTI]

    for bioethanol production Flickr/Robert Crum OPINIONS Are new biofuels the ethical answer? Joyce Tait and Banji-modified poplar tree that is a more accessible source of cellulose for bioethanol production. And the emerging

  18. Test particle motion in modified gravity theories

    E-Print Network [OSTI]

    Mahmood Roshan

    2013-02-05

    We derive the equations of motion of an electrically neutral test particle for modified gravity theories in which the covariant divergence of the ordinary matter energy-momentum tensor dose not vanish (i.e. $\

  19. Electrochemical apparatus comprising modified disposable rectangular...

    Office of Scientific and Technical Information (OSTI)

    include more than one cuvette, which in practice is a disposable rectangular glass or plastic cuvette modified by drilling the hole(s) through. The apparatus include two plates...

  20. Modified Fourier expansions: theory, construction and applications

    E-Print Network [OSTI]

    Adcock, Ben

    2010-10-12

    , such savings in computational cost impart benefits over more commonly used polynomial-based methods. Moreover, regardless of the dimensionality of the problem, modified Fourier methods lead to well-conditioned matrices and corresponding linear systems that can...

  1. Modified Boltzmann Transport Equation and Freeze Out

    E-Print Network [OSTI]

    Csernai, L P; Molnr, E; Nyiri, A; Tamosiunas, K

    2005-01-01

    We study Freeze Out process in high energy heavy ion reaction. The description of the process is based on the Boltzmann Transport Equation (BTE). We point out the basic limitations of the BTE approach and introduce Modified BTE. The Freeze Out dynamics is presented in the 4-dimensional space-time in a layer of finite thickness, and we employ Modified BTE for the realistic Freeze Out description.

  2. Modified Boltzmann Transport Equation and Freeze Out

    E-Print Network [OSTI]

    L. P. Csernai; V. K. Magas; E. Molnar; A. Nyiri; K. Tamosiunas

    2005-05-26

    We study Freeze Out process in high energy heavy ion reaction. The description of the process is based on the Boltzmann Transport Equation (BTE). We point out the basic limitations of the BTE approach and introduce Modified BTE. The Freeze Out dynamics is presented in the 4-dimensional space-time in a layer of finite thickness, and we employ Modified BTE for the realistic Freeze Out description.

  3. DNA polymerase having modified nucleotide binding site for DNA sequencing

    DOE Patents [OSTI]

    Tabor, S.; Richardson, C.

    1997-03-25

    A modified gene encoding a modified DNA polymerase is disclosed. The modified polymerase incorporates dideoxynucleotides at least 20-fold better compared to the corresponding deoxynucleotides as compared with the corresponding naturally-occurring DNA polymerase. 6 figs.

  4. Optical Intensity Interferometry through Atmospheric Turbulence

    E-Print Network [OSTI]

    Peng Kian Tan; Aik Hui Chan; Christian Kurtsiefer

    2015-12-29

    Conventional ground-based astronomical observations suffer from image distortion due to atmospheric turbulence. This can be minimized by choosing suitable geographic locations or adaptive optical techniques, and avoided altogether by using orbital platforms outside the atmosphere. One of the promises of optical intensity interferometry is its independence from atmospherically induced phase fluctuations. By performing narrowband spectral filtering on sunlight and conducting temporal intensity interferometry using actively quenched avalanche photon detectors (APDs), the Solar $g^{(2)}(\\tau)$ signature was directly measured. We observe an averaged photon bunching signal of $g^{(2)}(\\tau) = 1.693 \\pm 0.003$ from the Sun, consistently throughout the day despite fluctuating weather conditions, cloud cover and elevation angle. This demonstrates the robustness of the intensity interferometry technique against atmospheric turbulence and opto-mechanical instabilities, and the feasibility to implement measurement schemes with both large baselines and long integration times.

  5. Modified Theoretical Minimum Emittance Lattice for an Electron...

    Office of Scientific and Technical Information (OSTI)

    Modified Theoretical Minimum Emittance Lattice for an Electron Storage Ring with Extreme-Low Emittance Citation Details In-Document Search Title: Modified Theoretical Minimum...

  6. HYDRAULIC CALCULATIONS FOR A MODIFIED IN-SITU RETORT

    E-Print Network [OSTI]

    Hall, W.G.

    2012-01-01

    LBL-1 0431 UC-91 HYDRAULIC CALCULATIONS FOR A MODIFIED IN-REFERENCES . . , . HYDRAULIC CALCULATIONS FOR ACalifomia. LBL-10431 HYDRAULIC CALCULATIONS FOR A MODIFIED

  7. Surface modified CFx cathode material for ultrafast discharge...

    Office of Scientific and Technical Information (OSTI)

    Surface modified CFx cathode material for ultrafast discharge and high energy density Citation Details In-Document Search Title: Surface modified CFx cathode material for ultrafast...

  8. Surface modified CFx cathode material for ultrafast discharge...

    Office of Scientific and Technical Information (OSTI)

    Surface modified CFx cathode material for ultrafast discharge and high energy density Prev Next Title: Surface modified CFx cathode material for ultrafast discharge and high...

  9. Delivering High IntensityDelivering High Intensity Proton Beam:Proton Beam

    E-Print Network [OSTI]

    McDonald, Kirk

    11 Delivering High IntensityDelivering High Intensity Proton Beam:Proton Beam: Lessons for the NextFACT08NuFACT08 ­­ 4 July4 July S. ChildressS. Childress ­­ Proton BeamsProton Beams 22 Presentation OutlinePresentation Outline Key Proton Beam ConsiderationsKey Proton Beam Considerations The First

  10. Radiation Dose Measurement for High-Intensity Laser Interactions...

    Office of Scientific and Technical Information (OSTI)

    Radiation Dose Measurement for High-Intensity Laser Interactions with Solid Targets at SLAC Citation Details In-Document Search Title: Radiation Dose Measurement for High-Intensity...

  11. World Best Practice Energy Intensity Values for Selected Industrial Sectors

    E-Print Network [OSTI]

    Worrell, Ernst; Price, Lynn; Neelis, Maarten; Galitsky, Christina; Zhou, Nan

    2007-01-01

    1 2. World Best Practice Energy IntensityBrussels: IISI. Best practice energy use is also determinedalong with the best practice energy intensity value for

  12. World Best Practice Energy Intensity Values for Selected Industrial Sectors

    E-Print Network [OSTI]

    Worrell, Ernst; Price, Lynn; Neelis, Maarten; Galitsky, Christina; Zhou, Nan

    2007-01-01

    Best Practice Final and Primary Energy Intensity Values forWorld Best Practice Primary Energy Intensity Values forRecovered Pulp Note: Primary energy includes electricity

  13. 2014 call for NERSC's Data Intensive Computing Pilot Program...

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

    NERSC's Data Intensive Computing Pilot Program 2014 call for NERSC's Data Intensive Computing Pilot Program Due December 10 November 18, 2013 by Francesca Verdier (0 Comments)...

  14. ITP Energy Intensive Processes: Improved Heat Recovery in Biomass...

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

    Intensive Processes: Energy-Intensive Processes Portfolio: Addressing Key Energy Challenges Across U.S. Industry Guide to Low-Emission Boiler and Combustion Equipment Selection...

  15. WHERE ARE THE MOST INTENSE THUNDERSTORMS

    E-Print Network [OSTI]

    Nesbitt, Steve

    provided unparalleled information on the global distribution of intense convective storms. T he Tropical-alti- tude, non-sun-synchronous orbit permits sampling throughout the diurnal cycle of precipitation. The cloud-top temperature of storms has been measured using infrared (IR) bright- ness temperature (Tb

  16. Energy Intensity Indicators: Transportation Energy Consumption

    Broader source: Energy.gov [DOE]

    This section contains an overview of the aggregate transportation sector, combining both passenger and freight segments of this sector. The specific energy intensity indicators for passenger and freight can be obtained from the links, passenger transportation, or freight transportation. For further detail within the transportation sector, download the appropriate Trend Data worksheet containing detailed data and graphics for specific transportation modes.

  17. Adaptive Background Estimation using Intensity Independent Features

    E-Print Network [OSTI]

    Lunds Universitet

    Adaptive Background Estimation using Intensity Independent Features Håkan Ardö, Rikard Berthilsson to rapid changes in lighting conditions. Furthermore, the features can be computed very efficiently using reliable way, also in outdoor scenes where the lighting conditions is changing rapidly due to passing

  18. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, E.M.; Chang, C.; Bleecker, A.B.

    1997-11-18

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype. 31 figs.

  19. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, Elliot M. (Pasadena, CA); Chang, Caren (Pasadena, CA); Bleecker, Anthony B. (Madison, WI)

    1998-01-01

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype.

  20. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, Elliott M. (Pasadena, CA); Chang, Caren (Pasadena, CA); Bleecker, Anthony B. (Madison, WI)

    1997-01-01

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype.

  1. Plants having modified response to ethylene

    DOE Patents [OSTI]

    Meyerowitz, E.M.; Chang, C.; Bleecker, A.B.

    1998-10-20

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype. 67 figs.

  2. Early-time interface instabilities in high intensity aero-breakup of liquid drop

    E-Print Network [OSTI]

    Hu, X Y

    2014-01-01

    The early-time interface instabilities in high intensity (high Weber number and high Reynolds number) aero-breakup of a liquid drop are investigated by numerical simulations. A combined analysis based on simulation results and linear-instability theory show that both RT (Rayleigh-Taylor) and KH (Kelvin-Helmholtz) instabilities contributes the dominant disturbances originate from about the half way from the stagnation point to the equator. This is verified further with a specially modified simulation, which decreases the effect of KH instability while keeps other flow properties unchanged.

  3. vol. 176, no. 2 the american naturalist august 2010 Pair-Bonding Modifies the Age-Specific Intensities of Natural

    E-Print Network [OSTI]

    Lummaa, Virpi

    of the genetic variation underlying fecundity to natural selection should therefore depend on the proportion to declines in the proportion of genetic variation exposed to selection with age. Using the age schedule). If a higher proportion of genetic variation is expressed, selection against deleterious (or for beneficial

  4. Intensity-based modified Doppler variance algorithm: application to phase instable and phase stable optical coherence tomography systems

    E-Print Network [OSTI]

    Liu, Gangjun; Chou, Lidek; Jia, Wangcun; Qi, Wenjuan; Choi, Bernard; Chen, Zhongping

    2011-01-01

    OCT system. A microelectromechanical systems (MEMS) basedsituation. A microelectromechanical systems (MEMS) based

  5. Intensity-based modified Doppler variance algorithm: application to phase instable and phase stable optical coherence tomography systems

    E-Print Network [OSTI]

    Liu, Gangjun; Chou, Lidek; Jia, Wangcun; Qi, Wenjuan; Choi, Bernard; Chen, Zhongping

    2011-01-01

    domain OCT system. A microelectromechanical systems (MEMS)instable situation. A microelectromechanical systems (MEMS)

  6. Intensity-based modified Doppler variance algorithm: application to phase instable and phase stable optical coherence tomography systems

    E-Print Network [OSTI]

    Liu, Gangjun; Chou, Lidek; Jia, Wangcun; Qi, Wenjuan; Choi, Bernard; Chen, Zhongping

    2011-01-01

    system. A microelectromechanical systems (MEMS) based sweptsituation. A microelectromechanical systems (MEMS) based

  7. Analysis of higher harmonic contamination with a modified approach using a grating analyser

    SciTech Connect (OSTI)

    Gupta, Rajkumar Modi, Mohammed H.; Lodha, G. S.; Kumar, M.; Chakera, J. A.

    2014-04-15

    Soft x-ray spectra of the toroidal grating monochromator (TGM) at the reflectivity beamline of Indus-1 synchrotron source are analyzed for higher harmonic contribution. A diffraction grating of central line spacing 1200 l/mm is used to disperse the monochromatic beam received from TGM to quantify the harmonic contents in the 50360 wavelength range. In order to calculate the harmonic contamination, conventionally the intensity of higher order peak is divided by first order peak intensity of the desired wavelength. This approach is found to give wrong estimate as first order peak itself is overlapped by higher order peaks. In the present study, a modified approach has been proposed to calculate harmonic contamination where the intensity contributions of overlapping orders have been removed from the first order diffraction peak of the desired wavelength. It is found that the order contamination in the TGM spectra is less than 15% in the wavelength range of 90180 . The total harmonic contribution increases from 6%60% in the wavelength range of 150260 . The critical wavelength of Indus-1 is 61 hence the harmonic contamination below 90 is significantly low. The results obtained with modified approach match well with those obtained by quantitative analysis of multilayer reflectivity data. The obtained higher harmonics data are used to fit the transmission of aluminum edge filter in the 120360 wavelength range.

  8. Electrochemical apparatus comprising modified disposable rectangular cuvette

    DOE Patents [OSTI]

    Dattelbaum, Andrew M; Gupta, Gautam; Morris, David E

    2013-09-10

    Electrochemical apparatus includes a disposable rectangular cuvette modified with at least one hole through a side and/or the bottom. Apparatus may include more than one cuvette, which in practice is a disposable rectangular glass or plastic cuvette modified by drilling the hole(s) through. The apparatus include two plates and some means of fastening one plate to the other. The apparatus may be interfaced with a fiber optic or microscope objective, and a spectrometer for spectroscopic studies. The apparatus are suitable for a variety of electrochemical experiments, including surface electrochemistry, bulk electrolysis, and flow cell experiments.

  9. Storage-Intensive Supercomputing Benchmark Study

    SciTech Connect (OSTI)

    Cohen, J; Dossa, D; Gokhale, M; Hysom, D; May, J; Pearce, R; Yoo, A

    2007-10-30

    Critical data science applications requiring frequent access to storage perform poorly on today's computing architectures. This project addresses efficient computation of data-intensive problems in national security and basic science by exploring, advancing, and applying a new form of computing called storage-intensive supercomputing (SISC). Our goal is to enable applications that simply cannot run on current systems, and, for a broad range of data-intensive problems, to deliver an order of magnitude improvement in price/performance over today's data-intensive architectures. This technical report documents much of the work done under LDRD 07-ERD-063 Storage Intensive Supercomputing during the period 05/07-09/07. The following chapters describe: (1) a new file I/O monitoring tool iotrace developed to capture the dynamic I/O profiles of Linux processes; (2) an out-of-core graph benchmark for level-set expansion of scale-free graphs; (3) an entity extraction benchmark consisting of a pipeline of eight components; and (4) an image resampling benchmark drawn from the SWarp program in the LSST data processing pipeline. The performance of the graph and entity extraction benchmarks was measured in three different scenarios: data sets residing on the NFS file server and accessed over the network; data sets stored on local disk; and data sets stored on the Fusion I/O parallel NAND Flash array. The image resampling benchmark compared performance of software-only to GPU-accelerated. In addition to the work reported here, an additional text processing application was developed that used an FPGA to accelerate n-gram profiling for language classification. The n-gram application will be presented at SC07 at the High Performance Reconfigurable Computing Technologies and Applications Workshop. The graph and entity extraction benchmarks were run on a Supermicro server housing the NAND Flash 40GB parallel disk array, the Fusion-io. The Fusion system specs are as follows: SuperMicro X7DBE Xeon Dual Socket Blackford Server Motherboard; 2 Intel Xeon Dual-Core 2.66 GHz processors; 1 GB DDR2 PC2-5300 RAM (2 x 512); 80GB Hard Drive (Seagate SATA II Barracuda). The Fusion board is presently capable of 4X in a PCIe slot. The image resampling benchmark was run on a dual Xeon workstation with NVIDIA graphics card (see Chapter 5 for full specification). An XtremeData Opteron+FPGA was used for the language classification application. We observed that these benchmarks are not uniformly I/O intensive. The only benchmark that showed greater that 50% of the time in I/O was the graph algorithm when it accessed data files over NFS. When local disk was used, the graph benchmark spent at most 40% of its time in I/O. The other benchmarks were CPU dominated. The image resampling benchmark and language classification showed order of magnitude speedup over software by using co-processor technology to offload the CPU-intensive kernels. Our experiments to date suggest that emerging hardware technologies offer significant benefit to boosting the performance of data-intensive algorithms. Using GPU and FPGA co-processors, we were able to improve performance by more than an order of magnitude on the benchmark algorithms, eliminating the processor bottleneck of CPU-bound tasks. Experiments with a prototype solid state nonvolative memory available today show 10X better throughput on random reads than disk, with a 2X speedup on a graph processing benchmark when compared to the use of local SATA disk.

  10. Passive, Noiseless, Intensity Amplification of Repetitive Signals

    E-Print Network [OSTI]

    Maram, R; Li, M; Azaa, J

    2014-01-01

    Amplification of signal intensity is essential for initiating physical processes, diagnostics, sensing, communications, and scientific measurement. During traditional amplification, the signal is amplified by multiplying the signal carriers through an active gain process using an external power source. However, for repetitive waveforms, sufficient energy for amplification often resides in the signal itself. In such cases, the unneeded external power is wasted, and the signal is additionally degraded by noise and distortions that accompany active gain processes. We show noiseless, intensity amplification of repetitive optical pulse waveforms with a gain from 2 to ~20 without using active gain, by recycling energy already stored in the input repetitive signal. This "green" method uses dispersion-induced self-imaging (Talbot) effects to precisely re-distribute the original signal energy into fewer replica waveforms. This approach simply requires a suitable manipulation of the input signal's phase profile along t...

  11. On a Modified Klein Gordon Equation

    E-Print Network [OSTI]

    B. S. Lakshmi

    2009-08-09

    We consider a modified Klein-Gordon equation that arises at ultra high energies. In a suitable approximation it is shown that for the linear potential which is of interest in quark interactions, their confinement for example,we get solutions that mimic the Harmonic oscillator energy levels, surprisingly. An equation similar to the beam equation is obtained in the process.

  12. Modifiability through Architecture Analysis Nico Lassing

    E-Print Network [OSTI]

    van Vliet, Hans

    of maintenance. The area addressing this is software architecture analysis of modifiability. We have de- veloped areas, such as telecommunications, logistics and business infor- mation systems. This paper gives- tinguish various goals in this area, namely risk as- sessment, maintenance prediction and architecture

  13. Intensive Variables & Nanostructuring in Magnetostructural Materials

    SciTech Connect (OSTI)

    Lewis, Laura

    2014-08-13

    Over the course of this project, fundamental inquiry was carried out to investigate, understand and predict the effects of intensive variables, including the structural scale, on magnetostructural phase transitions in the model system of equiatomic FeRh. These transitions comprise simultaneous magnetic and structural phase changes that have their origins in very strong orbital-lattice coupling and thus may be driven by a plurality of effects.

  14. Nuclear astrophysics with intense photon beam

    SciTech Connect (OSTI)

    Shizuma, Toshiyuki [Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)

    2012-07-09

    Quasi-monochromatic photon beams generated by inverse Compton scattering of laser light with high energy electrons can be used for precise measurements of photoneutrons and resonant scattered {gamma} rays. Extremely high intensity and small energy spreading width of the photon beam expected at the ELI Nuclear Physics facility would increase the experimental sensitivities considerably. Possible photonuclear reaction measurements relevant to the p-process nucleosynthesis are discussed.

  15. Black Hole Thermodynamics in Modified Gravity

    E-Print Network [OSTI]

    Jonas R. Mureika; John W. Moffat; Mir Faizal

    2015-03-03

    We analyze the thermodynamics of a non-rotating and rotating black hole in a modified theory of gravity that includes scalar and vector modifications to general relativity, which results in a modified gravitational constant $G = G_N(1+\\alpha)$ and a new gravitational charge $Q = \\sqrt{\\alpha G_N}M$. The influence of the parameter $\\alpha$ alters the non-rotating black hole's lifetime, temperature and entropy profiles from the standard Schwarzschild case. The thermodynamics of a rotating black hole is analyzed and it is shown to possess stable, cold remnants. The thermodynamic properties of a vacuum solution regular at $r=0$ are investigated and the solution without a horizon called a "gray hole" is not expected to possess an information loss problem.

  16. COLLIMATION OPTIMIZATION IN HIGH INTENSITY RINGS.

    SciTech Connect (OSTI)

    CATALAN-LASHERAS,N.

    2001-06-18

    In high intensity proton rings, collimation is needed in order to maintain reasonable levels of residual activation and allow hands-on maintenance. Small acceptance to emittance ratio and restrained longitudinal space become important restrictions when dealing with low energy rings. The constraints and specifications when designing a collimation system for this type of machine will be reviewed. The SNS accumulator ring will serve as an examples long which we will illustrate the optimization path. Experimental studies of collimation with 1.3 GeV proton beams are currently under way in the U-70 machine in Protvino. The first results will be presented.

  17. Intense steady state electron beam generator

    DOE Patents [OSTI]

    Hershcovitch, A.; Kovarik, V.J.; Prelec, K.

    1990-07-17

    An intense, steady state, low emittance electron beam generator is formed by operating a hollow cathode discharge plasma source at critical levels in combination with an extraction electrode and a target electrode that are operable to extract a beam of fast primary electrons from the plasma source through a negatively biased grid that is critically operated to repel bulk electrons toward the plasma source while allowing the fast primary electrons to move toward the target in the desired beam that can be successfully transported for relatively large distances, such as one or more meters away from the plasma source. 2 figs.

  18. Quantum Vacuum Experiments Using High Intensity Lasers

    E-Print Network [OSTI]

    Mattias Marklund; Joakim Lundin

    2009-04-02

    The quantum vacuum constitutes a fascinating medium of study, in particular since near-future laser facilities will be able to probe the nonlinear nature of this vacuum. There has been a large number of proposed tests of the low-energy, high intensity regime of quantum electrodynamics (QED) where the nonlinear aspects of the electromagnetic vacuum comes into play, and we will here give a short description of some of these. Such studies can shed light, not only on the validity of QED, but also on certain aspects of nonperturbative effects, and thus also give insights for quantum field theories in general.

  19. Modified Empirical Parametrization of Fragmentation Cross Sections

    E-Print Network [OSTI]

    K. Smmerer; B. Blank

    1999-11-17

    New experimental data obtained mainly at the GSI/FRS facility allow to modify the empirical parametrization of fragmentation cross sections, EPAX. It will be shown that minor modifications of the parameters lead to a much better reproduction of measured cross sections. The most significant changes refer to the description of fragmentation yields close to the projectile and of the memory effect of neutron-deficient projectiles.

  20. Characterization of electrochemically modified polycrystalline platinum surfaces

    SciTech Connect (OSTI)

    Krebs, L.C.; Ishida, Takanobu

    1991-12-01

    The characterization of electrochemically modified polycrystalline platinum surfaces has been accomplished through the use of four major electrochemical techniques. These were chronoamperometry, chronopotentiommetry, cyclic voltammetry, and linear sweep voltammetry. A systematic study on the under-potential deposition of several transition metals has been performed. The most interesting of these were: Ag, Cu, Cd, and Pb. It was determined, by subjecting the platinum electrode surface to a single potential scan between {minus}0.24 and +1.25 V{sub SCE} while stirring the solution, that the electrocatalytic activity would be regenerated. As a consequence of this study, a much simpler method for producing ultra high purity water from acidic permanganate has been developed. This method results in water that surpasses the water produced by pyrocatalytic distillation. It has also been seen that the wettability of polycrystalline platinum surfaces is greatly dependent on the quantity of oxide present. Oxide-free platinum is hydrophobic and gives a contact angle in the range of 55 to 62 degrees. We have also modified polycrystalline platinum surface with the electrically conducting polymer poly-{rho}-phenylene. This polymer is very stable in dilute sulfuric acid solutions, even under applied oxidative potentials. It is also highly resistant to electrochemical hydrogenation. The wettability of the polymer modified platinum surface is severely dependent on the choice of supporting electrolyte chosen for the electrochemical polymerization. Tetraethylammonium tetrafluoroborate produces a film that is as hydrophobic as Teflon, whereas tetraethylammonium perchlorate produces a film that is more hydrophilic than oxide-free platinum.

  1. Theoretical priors on modified growth parametrisations

    SciTech Connect (OSTI)

    Song, Yong-Seon; Hollenstein, Lukas; Caldera-Cabral, Gabriela; Koyama, Kazuya E-mail: Lukas.Hollenstein@unige.ch E-mail: Kazuya.Koyama@port.ac.uk

    2010-04-01

    Next generation surveys will observe the large-scale structure of the Universe with unprecedented accuracy. This will enable us to test the relationships between matter over-densities, the curvature perturbation and the Newtonian potential. Any large-distance modification of gravity or exotic nature of dark energy modifies these relationships as compared to those predicted in the standard smooth dark energy model based on General Relativity. In linear theory of structure growth such modifications are often parameterised by virtue of two functions of space and time that enter the relation of the curvature perturbation to, first, the matter over- density, and second, the Newtonian potential. We investigate the predictions for these functions in Brans-Dicke theory, clustering dark energy models and interacting dark energy models. We find that each theory has a distinct path in the parameter space of modified growth. Understanding these theoretical priors on the parameterisations of modified growth is essential to reveal the nature of cosmic acceleration with the help of upcoming observations of structure formation.

  2. High intensity discharge device containing oxytrihalides

    DOE Patents [OSTI]

    Lapatovich, W.P.; Keeffe, W.M.; Liebermann, R.W.; Maya, J.

    1987-06-09

    A fill composition for a high intensity discharge device including mercury, niobium oxytrihalide, and a molecular stabilization agent is provided. The molar ratio of niobium oxytrihalide to the molecular stabilization agent in the fill is in the range of from about 5:1 to about 7.5:1. Niobium oxytrihalide is present in the fill in sufficient amount to produce, by dissociation in the discharge, atomic niobium, niobium oxide, NbO, and niobium dioxide, NbO[sub 2], with the molar ratio of niobium-containing vapor species to mercury in the fill being in the range of from about 0.01:1 to about 0.50:1; and mercury pressure of about 1 to about 50 atmospheres at lamp operating temperature. There is also provided a high intensity discharge device comprising a sealed light-transmissive arc tube; the arc tube including the above-described fill; and an energizing means for producing an electric discharge within the arc tube. 7 figs.

  3. China's energy intensity and its determinants at the provincial level

    E-Print Network [OSTI]

    Zhang, Xin, S.M. Massachusetts Institute of Technology

    2009-01-01

    Energy intensity is defined as the amount of energy consumed per dollar of GDP (Gross Domestic Product). The People's Republic of China's (China's) energy intensity has been declining significantly since the late 1970s. ...

  4. INERTIAL FUSION DRIVEN BY INTENSE HEAVY-ION BEAMS

    E-Print Network [OSTI]

    Sharp, W. M.

    2011-01-01

    HIFAN 1830 INERTIAL FUSION DRIVEN BY INTENSE HEAVY-ION BEAMSAC02-05CH11231. INERTIAL FUSION DRIVEN BY INTENSE HEAVY-ION467 (1992). [38] R. W. Moir, Fusion Tech. 25, 5 (1994) [39

  5. Energy End-Use Intensities in Commercial Buildings

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

    lighting intensities per lighted square foot-hour (Figure 23). * Food service and health care buildings had the highest water-heating intensities per square foot--more than...

  6. Precipitation amount and intensity measurements with the Ott Pluvio

    E-Print Network [OSTI]

    Wauben, Wiel

    Precipitation amount and intensity measurements with the Ott Pluvio Wiel Wauben Instrumental Department, INSA-IO, KNMI August 26, 2004 #12;#12;Precipitation amount and intensity measurements................................................................................... 1 2. Precipitation sensors................................................................... 5 2

  7. Solving a Complex Prisoner's Dilemma with SelfModifying Policies

    E-Print Network [OSTI]

    Schmidhuber, Juergen

    Solving a Complex Prisoner's Dilemma with SelfModifying Policies Jieyu Zhao and J of the prisoner's dilemma. 1 Overview SMP/SSA. An animat's modifiable components that determine its behavior

  8. Turbulence Intensity Comparisons for Pipes with/without Welds

    E-Print Network [OSTI]

    McDonald, Kirk

    Turbulence Intensity Comparisons for Pipes with/without Welds Oct. 24, 2012 Yan Zhan 1 #12;Outline Line Plot of TI at the Pipe Exit Contour of Turbulence Intensity (Page 4 - 9) with a weld - 3.2M with a weld 2.5M Contour of Turbulence Intensity (Page 10 - 15) with a weld - 3.2M without a weld 3

  9. Upper Trinity River Central City Modified Project Report

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Appendix A Upper Trinity River Central City Modified Project Report Certifications This Appendix on technical components used in the preparation of the Modified Central City Project Report. The certifications November 2007. Internal Quality Assurance reviews of the Modified Project Report, conducted by the Fort

  10. Reconstruction of Intensity From Covered Samples

    SciTech Connect (OSTI)

    Barabash, Rozaliya; Watkins, Thomas R; Meisner, Roberta Ann; Burchell, Timothy D; Rosseel, Thomas M

    2015-01-01

    The safe handling of activated samples requires containment and covering the sample to eliminate any potential for contamination. Subsequent characterization of the surface with x-rays ideally necessitates a thin film. While many films appear visually transparent, they are not necessarily x-ray transparent. Each film material has a unique beam attenuation and sometimes have amorphous peaks that can superimpose with those of the sample. To reconstruct the intensity of the underlying activated sample, the x-ray attenuation and signal due to the film needs to be removed from that of the sample. This requires the calculation of unique deconvolution parameters for the film. The development of a reconstruction procedure for a contained/covered sample is described.

  11. Position, rotation, and intensity invariant recognizing method

    DOE Patents [OSTI]

    Ochoa, Ellen (Pleasanton, CA); Schils, George F. (San Ramon, CA); Sweeney, Donald W. (Alamo, CA)

    1989-01-01

    A method for recognizing the presence of a particular target in a field of view which is target position, rotation, and intensity invariant includes the preparing of a target-specific invariant filter from a combination of all eigen-modes of a pattern of the particular target. Coherent radiation from the field of view is then imaged into an optical correlator in which the invariant filter is located. The invariant filter is rotated in the frequency plane of the optical correlator in order to produce a constant-amplitude rotational response in a correlation output plane when the particular target is present in the field of view. Any constant response is thus detected in the output The U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP00789 between the U.S. Department of Energy and AT&T Technologies, Inc.

  12. THE CENTER FOR DATA INTENSIVE COMPUTING

    SciTech Connect (OSTI)

    GLIMM,J.

    2002-11-01

    CDIC will provide state-of-the-art computational and computer science for the Laboratory and for the broader DOE and scientific community. We achieve this goal by performing advanced scientific computing research in the Laboratory's mission areas of High Energy and Nuclear Physics, Biological and Environmental Research, and Basic Energy Sciences. We also assist other groups at the Laboratory to reach new levels of achievement in computing. We are ''data intensive'' because the production and manipulation of large quantities of data are hallmarks of scientific research in the 21st century and are intrinsic features of major programs at Brookhaven. An integral part of our activity to accomplish this mission will be a close collaboration with the University at Stony Brook.

  13. THE CENTER FOR DATA INTENSIVE COMPUTING

    SciTech Connect (OSTI)

    GLIMM,J.

    2001-11-01

    CDIC will provide state-of-the-art computational and computer science for the Laboratory and for the broader DOE and scientific community. We achieve this goal by performing advanced scientific computing research in the Laboratory's mission areas of High Energy and Nuclear Physics, Biological and Environmental Research, and Basic Energy Sciences. We also assist other groups at the Laboratory to reach new levels of achievement in computing. We are ''data intensive'' because the production and manipulation of large quantities of data are hallmarks of scientific research in the 21st century and are intrinsic features of major programs at Brookhaven. An integral part of our activity to accomplish this mission will be a close collaboration with the University at Stony Brook.

  14. THE CENTER FOR DATA INTENSIVE COMPUTING

    SciTech Connect (OSTI)

    GLIMM,J.

    2003-11-01

    CDIC will provide state-of-the-art computational and computer science for the Laboratory and for the broader DOE and scientific community. We achieve this goal by performing advanced scientific computing research in the Laboratory's mission areas of High Energy and Nuclear Physics, Biological and Environmental Research, and Basic Energy Sciences. We also assist other groups at the Laboratory to reach new levels of achievement in computing. We are ''data intensive'' because the production and manipulation of large quantities of data are hallmarks of scientific research in the 21st century and are intrinsic features of major programs at Brookhaven. An integral part of our activity to accomplish this mission will be a close collaboration with the University at Stony Brook.

  15. Multiparameter Intelligent Monitoring in Intensive Care Ii (Mimic-Ii): A Public-Access Intensive Care Unit Database

    E-Print Network [OSTI]

    Saeed, Mohammed

    Objective: We sought to develop an intensive care unit research database applying automated techniques to aggregate high-resolution diagnostic and therapeutic data from a large, diverse population of adult intensive care ...

  16. Distilling two-atom distance information from intensity-intensity correlation functions RID A-5077-2009

    E-Print Network [OSTI]

    Chang, Jun-Tao; Evers, Joerg; Zubairy, M. Suhail

    2006-01-01

    accessible in experiments. For this, we numerically solve the time-evolution equations of the system and calculate the steady-state intensity-intensity correlation by using the Laplace transform and quantum regression theory. By varying the interatomic...

  17. Cosmological Evidence for Modified Gravity (MOG)

    E-Print Network [OSTI]

    Moffat, J W

    2015-01-01

    Deviations from the standard $\\Lambda$CDM model motivate an interpretation of early universe cosmology using the Scalar-Tensor-Vector-Gravity (STVG) theory. A constraint analysis carried out by Valentino, Melchiorri and Silk, revealed deviations from the growth of structure predicted by General Relativity, and a lensing anomaly in the angular CMB power spectrum data with a $95\\%$ c.l. The modified gravity (MOG) theory resolves the lensing deviation from the standard model and provides an explanation of the CMB and structure growth data.

  18. Chemically modified carbonic anhydrases useful in carbon capture systems

    DOE Patents [OSTI]

    Novick, Scott J; Alvizo, Oscar

    2013-10-29

    The present disclosure relates to chemically modified carbonic anhydrase polypeptides and soluble compositions, homogenous liquid formulations comprising them. The chemically modified carbonic anhydrase polypeptides have improved properties relative to the same carbonic anhydrase polypeptide that is not chemically modified including the improved properties of increased activity and/or stability in the presence of amine compounds, ammonia, or carbonate ion. The present disclosure also provides methods of preparing the chemically modified polypeptides and methods of using the chemically modified polypeptides for accelerating the absorption of carbon dioxide from a gas stream into a solution as well as for the release of the absorbed carbon dioxide for further treatment and/or sequestering.

  19. Chemically modified carbonic anhydrases useful in carbon capture systems

    DOE Patents [OSTI]

    Novick, Scott; Alvizo, Oscar

    2013-01-15

    The present disclosure relates to chemically modified carbonic anhydrase polypeptides and soluble compositions, homogenous liquid formulations comprising them. The chemically modified carbonic anhydrase polypeptides have improved properties relative to the same carbonic anhydrase polypeptide that is not chemically modified including the improved properties of increased activity and/or stability in the presence of amine compounds, ammonia, or carbonate ion. The present disclosure also provides methods of preparing the chemically modified polypeptides and methods of using the chemically modified polypeptides for accelerating the absorption of carbon dioxide from a gas stream into a solution as well as for the release of the absorbed carbon dioxide for further treatment and/or sequestering.

  20. Boron modified molybdenum silicide and products

    DOE Patents [OSTI]

    Meyer, M.K.; Akinc, M.

    1999-02-02

    A boron-modified molybdenum silicide material is disclosed having the composition comprising about 80 to about 90 weight % Mo, about 10 to about 20 weight % Si, and about 0.1 to about 2 weight % B and a multiphase microstructure including Mo{sub 5}Si{sub 3} phase as at least one microstructural component effective to impart good high temperature creep resistance. The boron-modified molybdenum silicide material is fabricated into such products as electrical components, such as resistors and interconnects, that exhibit oxidation resistance to withstand high temperatures in service in air as a result of electrical power dissipation, electrical resistance heating elements that can withstand high temperatures in service in air and other oxygen-bearing atmospheres and can span greater distances than MoSi{sub 2} heating elements due to improved creep resistance, and high temperature structural members and other fabricated components that can withstand high temperatures in service in air or other oxygen-bearing atmospheres while retaining creep resistance associated with Mo{sub 5}Si{sub 3} for structural integrity. 7 figs.

  1. Low-income consumers, though less aware of genetically modified foods, are concerned and want labels

    E-Print Network [OSTI]

    King, Nicelma J.

    2003-01-01

    sentiment about genetically modified food. Pew Initia- tiveless aware of genetically modified foods, are concerned andattitudes about genetically modified foods have been

  2. Data Intensive Architecture for Scalable Cyber Analytics

    SciTech Connect (OSTI)

    Olsen, Bryan K.; Johnson, John R.; Critchlow, Terence J.

    2011-12-19

    Cyber analysts are tasked with the identification and mitigation of network exploits and threats. These compromises are difficult to identify due to the characteristics of cyber communication, the volume of traffic, and the duration of possible attack. In this paper, we describe a prototype implementation designed to provide cyber analysts an environment where they can interactively explore a months worth of cyber security data. This prototype utilized On-Line Analytical Processing (OLAP) techniques to present a data cube to the analysts. The cube provides a summary of the data, allowing trends to be easily identified as well as the ability to easily pull up the original records comprising an event of interest. The cube was built using SQL Server Analysis Services (SSAS), with the interface to the cube provided by Tableau. This software infrastructure was supported by a novel hardware architecture comprising a Netezza TwinFin for the underlying data warehouse and a cube server with a FusionIO drive hosting the data cube. We evaluated this environment on a months worth of artificial, but realistic, data using multiple queries provided by our cyber analysts. As our results indicate, OLAP technology has progressed to the point where it is in a unique position to provide novel insights to cyber analysts, as long as it is supported by an appropriate data intensive architecture.

  3. Intense ultraviolet perturbations on aquatic primary producers

    E-Print Network [OSTI]

    Guimarais, Mayrene; Horvath, Jorge

    2010-01-01

    During the last decade, the hypothesis that one or more biodiversity drops in the Phanerozoic eon, evident in the geological record, might have been caused by the most powerful kind of stellar explosion so far known (Gamma Ray Bursts) has been discussed in several works. These stellar explosions could have left an imprint in the biological evolution on Earth and in other habitable planets. In this work we calculate the short-term lethality that a GRB would produce in the aquatic primary producers on Earth. This effect on life appears as a result of ultraviolet (UV) re-transmission in the atmosphere of a fraction of the gamma energy, resulting in an intense UV flash capable of penetrating ~ tens of meters in the water column in the ocean. We focus on the action of the UV flash on phytoplankton, as they are the main contributors to global aquatic primary productivity. Our results suggest that the UV flash could cause an hemispheric reduction of phytoplankton biomass in the upper mixed layer of the World Ocean o...

  4. Astrophysical black holes in screened modified gravity

    SciTech Connect (OSTI)

    Davis, Anne-Christine; Jha, Rahul; Muir, Jessica; Gregory, Ruth E-mail: r.a.w.gregory@durham.ac.uk E-mail: jlmuir@umich.edu

    2014-08-01

    Chameleon, environmentally dependent dilaton, and symmetron gravity are three models of modified gravity in which the effects of the additional scalar degree of freedom are screened in dense environments. They have been extensively studied in laboratory, cosmological, and astrophysical contexts. In this paper, we present a preliminary investigation into whether additional constraints can be provided by studying these scalar fields around black holes. By looking at the properties of a static, spherically symmetric black hole, we find that the presence of a non-uniform matter distribution induces a non-constant scalar profile in chameleon and dilaton, but not necessarily symmetron gravity. An order of magnitude estimate shows that the effects of these profiles on in-falling test particles will be sub-leading compared to gravitational waves and hence observationally challenging to detect.

  5. Radionuclide partitioning in the modified Unex process

    SciTech Connect (OSTI)

    Babain, V.; Smirnov, I.; Alyapyshev, M.; Todd, T.A.; Law, J.D.; Herbst, R.S.; Paulenova, A.

    2008-07-01

    The Universal Extraction (UNEX) process has been developed for simultaneous extraction of long-lived radionuclides (cesium, strontium, actinides, and lanthanides) from acidic solutions in one extraction cycle. Modification of this organic solvent through the use of diamides of dipicolinic acid instead of CMPO increases the extraction capacity of UNEX solvent toward lanthanides and actinide metals, allowing for the processing of spent nuclear fuel. The possibility of radionuclide group separation using the modified UNEX solvent [HCCD (chlorinated cobalt dicarbollide), TBDPA (tetrabutyl-diamide of dipicolinic acid), PEG in FS-1 3 (phenyl-trifluoromethyl-sulfone)] is being investigated. Individual strip products, including a) actinides and lanthanides, b) strontium, and c) cesium, can be obtained by selective stripping from UNEX solvent. Such partitioning will make it possible to transform the Cs/Sr product into the most stable matrices for long-term storage and to further process the actinide/lanthanide product for recycling to a nuclear reactor. (authors)

  6. Modified nonlinear model of arcsin-electrodynamics

    E-Print Network [OSTI]

    Kruglov, S I

    2015-01-01

    A new modified model of nonlinear arcsin-electrodynamics with two parameters is proposed and analyzed. We obtain the corrections to the Coulomb law. The effect of vacuum birefringence takes place when the external constant magnetic field is present. We calculate indices of refraction for two perpendicular polarizations of electromagnetic waves and estimate bounds on the parameter $\\gamma$ from the BMV and PVLAS experiments. It is shown that the electric field of a point-like charge is finite at the origin. We calculate the finite static electric energy of point-like particles and demonstrate that the electron mass can have the pure electromagnetic nature. The symmetrical Belinfante energy-momentum tensor and dilatation current are found. We show that the dilatation symmetry and dual symmetry are broken in the model suggested.

  7. Bridged polygermsesquioxanes. Organically modified germanium oxide materials

    SciTech Connect (OSTI)

    Jamison, G.M.; Loy, D.A. (Sandia National Labs., Albuquerque, NM (United States)); Shea, K.J. (Univ. of California, Irvine, CA (United States))

    1993-09-01

    Sol-gel processed polysilsesquioxanes are hybrid organic-inorganic materials with potential applications as photoresists, membranes, or catalytic supports. Hydrolytic conversion of trichloro- or trialkoxysilanes often leads to amorphous or crystalline oligosilsesquioxanes instead of high polymers. In light of the intimate dependence of polysilsesquioxane properties of tightly controlled reaction conditions and processing, recent emphasis has been placed on control of polymer microarchitecture via the introduction of arylene-, acetylene-, and alkylene-bridging groups. Another strategy for modifying the properties of hybrid organic-inorganic polymers is to substitute a group IVA metal, such as germanium, for silicon. The authors report the synthesis and characterization of bifunctional hexylene-bridged organogermanium monomers X[sub 3]Ge-(CH[sub 2])[sub 6]GeX[sub 3] (X = Cl; OEt) and the formation of polymeric materials through sol-gel hydrolysis-condensation of the monomers. 15 refs., 2 figs.

  8. Transport of Intensity Phase Retrieval of Arbitrary Wave Fields Including Vortices

    E-Print Network [OSTI]

    Axel Lubk; Giulio Guzzinati; Felix Brrnert; Jo Verbeeck

    2014-12-05

    The phase problem can be considered as one of the cornerstones of quantum mechanics intimately connected to the detection process and the uncertainty relation. The latter impose fundamental limits on the manifold phase reconstruction schemes invented to date in particular at small magnitudes of the quantum wave. Here, we show that a rigorous solution of the Transport of Intensity Reconstruction (TIE) scheme in terms of a linear elliptic partial differential equation for the phase provides reconstructions even in the presence of wave zeros if particular boundary conditions (BCs) are given. We furthermore discuss how partial coherence hampers phase reconstruction and show that a modified version of the TIE reconstructs the curl-free current density at arbitrary (in-)coherence. This opens the way for a large variety of new applications in fields as diverse as astrophysics, geophysics, photonics, acoustics, and electron microscopy, where zeros in the respective wave field are a ubiquitous feature.

  9. Economic potential of intensive culture of Penaeus vannamei in Mexico

    E-Print Network [OSTI]

    De La Mora Perez-Arce, Jose Bernardo

    1991-01-01

    operations; these operations included stocking, feeding, monitoring and harvesting of semi- intensively managed ponds stocked with Penaeus vannamei. Also, intensively managed round ponds were studied during my internship; this allowed me to become.... EXECUTIVE SUMMARY Two hypothetical shrimp farms on the Pacific coast of Mexico were designed to allow financial analysis of methods and management technologies developed in the USA for intensive culture of Penaeus vannamei under local conditions in west...

  10. Ionized channel generation of an intense-relativistic electron beam

    DOE Patents [OSTI]

    Frost, Charles A. (Albuquerque, NM); Leifeste, Gordon T. (Albuquerque, NM); Shope, Steven L. (Albuquerque, NM)

    1988-01-01

    A foilless intense relativistic electron beam generator uses an ionized cnel to guide electrons from a cathode passed an anode to a remote location.

  11. Table 6. Energy intensity by State (2000-2011

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

    Energy intensity by State (2000-2011)" "thousand Btu per dollar of GDP" ,,,"Change" ,,,"2000 to 2011" "State",1997,1998,1999,2000,2001,2002,2003,2004,2005...

  12. Energy End-Use Intensities in Commercial Buildings

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

    Intensities The purpose of this section is to provide information on how energy was used for space conditioning--heating, cooling, and ventilation--in commercial...

  13. Response of High-Tc Superconductor Metamaterials to High Intensity...

    Office of Scientific and Technical Information (OSTI)

    Conference: Response of High-Tc Superconductor Metamaterials to High Intensity THz Radiation Citation Details In-Document Search Title: Response of High-Tc Superconductor...

  14. Table C10. Electricity Consumption and Expenditure Intensities...

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

    Electricity Consumption and Expenditure Intensities, 1999" ,"Electricity Consumption",,,,,,"Electricity Expenditures" ,"per Building (thousand kWh)","per Square Foot (kWh)","per...

  15. The Fermilab Main Injector: high intensity operation and beam...

    Office of Scientific and Technical Information (OSTI)

    The Fermilab Main Injector: high intensity operation and beam loss control Authors: Brown, Bruce C. ; Adamson, Philip ; Capista, David ; Chou, Weiren ; Kourbanis, Ioanis ;...

  16. Mechanical and Electrical Properties of Modified Graphene Devices

    E-Print Network [OSTI]

    ZHANG, HANG

    2012-01-01

    works demonstrate that modified graphene structures providehttp://en.wikipedia.org/wiki/Graphene#Potential_applicationsin detail sample (graphene) preparation, localization and

  17. In-situ characterization of plasma modified surfaces by vibrational...

    Office of Scientific and Technical Information (OSTI)

    In-situ characterization of plasma modified surfaces by vibrational sum frequency generation spectroscopy. Citation Details In-Document Search Title: In-situ characterization of...

  18. Neutrino Flavor Ratios Modified by Cosmic Ray Re-acceleration

    E-Print Network [OSTI]

    Kawanaka, Norita

    2015-01-01

    Re-acceleration of $\\pi$'s and $\\mu$'s modifies the flavor ratio at Earth (at astrophysical sources) of neutrinos produced by $\\pi$ decay, $\

  19. Surface modified CFx cathode material for ultrafast discharge...

    Office of Scientific and Technical Information (OSTI)

    CFx. The modified CFx, consisting of an in situ generated shell component of F-graphene layers, possesses good electronic conductivity and removes the transporting barrier...

  20. Highly Charged Ion (HCI) Modified Tunnel Junctions

    SciTech Connect (OSTI)

    Pomeroy, J. M.; Grube, H. [Atomic Physics Division, National Institute of Standards and Technology (NIST) 100 Bureau Dr., MS 8423, Gaithersburg, MD 20899-8423 (United States)

    2009-03-10

    The neutralization energy carried by highly charged ions (HCIs) provides an alternative method for localizing energy on a target's surface, producing features and modifying surfaces with fluences and kinetic energy damage that are negligible compared to singly ionized atoms. Since each HCI can deposit an enormous amount of energy into a small volume of the surface (e.g., Xe{sup 44+} delivers 51 keV of neutralization energy per HCI), each individual HCI's interaction with the target can produce a nanoscale feature. Many studies of HCI-surface features have characterized some basic principles of this unique ion-surface interaction, but the activity reported here has been focused on studying ensembles of HCI features in ultra-thin insulating films by fabricating multi-layer tunnel junction devices. The ultra-thin insulating barriers allow current to flow by tunneling, providing a very sensitive means of detecting changes in the barrier due to highly charged ion irradiation and, conversely, HCI modification provides a method of finely tuning the transparency of the tunnel junctions that spans several orders of magnitude for devices produced from a single process recipe. Systematic variation of junction bias, temperature, magnetic field and other parameters provides determination of the transport mechanism, defect densities, and magnetic properties of these nano-features and this novel approach to device fabrication.

  1. Title of Dissertation: LONGITUDINAL DYNAMICS OF AN INTENSE ELECTRON BEAM

    E-Print Network [OSTI]

    Anlage, Steven

    ABSTRACT Title of Dissertation: LONGITUDINAL DYNAMICS OF AN INTENSE ELECTRON BEAM John Richardson fusion, spallation neutron sources, free-electron lasers, and other applications. In addition, all beams beams. #12;LONGITUDINAL DYNAMICS OF AN INTENSE ELECTRON BEAM By John Richardson Harris. Dissertation

  2. Title of Dissertation: CONTROL AND TRANSPORT OF INTENSE ELECTRON BEAMS

    E-Print Network [OSTI]

    Anlage, Steven

    ABSTRACT Title of Dissertation: CONTROL AND TRANSPORT OF INTENSE ELECTRON BEAMS Hui Li, Doctor of beam characteristics over long distances. The University of Maryland Electron Ring (UMER), which uses low energy, high current electron beams to model the transport physics of intense space

  3. Vessel tractography using an intensity based tensor model

    E-Print Network [OSTI]

    Yanikoglu, Berrin

    Vessel tractography using an intensity based tensor model Suheyla Cetin1 , Gozde Unal1 , Ali Demir1 method, which is based on an intensity-based tensor that fits to a vessel. Our model is initialized with a single seed point and it is ca- pable of capturing whole vessel tree by an automatic branch detection

  4. Intensive Summer Spanish Courses in Barcelona for Erasmus & University .

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universitt

    Intensive Summer Spanish Courses in Barcelona for Erasmus & University . 2014 -AUGUST 11th -SEPTEMBER- OCTOBER SpainBcn-Programs in Barcelona, is the best place to learn Spanish fast, in a warm in Barcelona or elsewhere in Spain (many students attending Spanish Universities take a 2/3/4 weeks Intensive

  5. Knowledge-Intensive Work in the Oil and Gas Industry

    E-Print Network [OSTI]

    Knowledge-Intensive Work in the Oil and Gas Industry: A Case Study Thesis for the degree collaborative work practices within a large international oil and gas company (OGC). The work is founded empirical findings, we argue that in knowledge-intensive, interdisciplinary work such as oil and gas

  6. The investigation of high intensity laser driven micro neutron sources

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    , access to high temperature states of mat- ter capable of thermonuclear fusion and/or the effi- cientThe investigation of high intensity laser driven micro neutron sources for fusion materials. The application of fast pulse, high intensity lasers to drive low cost DT point neutron sources for fusion

  7. LIQUID METAL JET TARGETS FOR INTENSE HIGH ENERGY BEAMS

    E-Print Network [OSTI]

    McDonald, Kirk

    LIQUID METAL JET TARGETS FOR INTENSE HIGH ENERGY BEAMS G. I. Silvestrov, Budker Institute for Nuclear Physics Novosibirsk, August 1998. #12;1 LIQUID METAL JET TARGETS FOR INTENSE HIGH ENERGY BEAMS target of liquid metal. The technical solution is producing the target in the form of flat jet flowing

  8. Precipitation amount and intensity measurements using a windscreen

    E-Print Network [OSTI]

    Wauben, Wiel

    Precipitation amount and intensity measurements using a windscreen Wiel Wauben Instrumental Department, INSA-IO, KNMI June 21, 2004 #12;#12;Precipitation amount and intensity measurements using................................................................................... 1 2. Precipitation gauge and measurement setup............................ 3 2.1. KNMI electronic

  9. A Comprehensive System of U.S. Energy Intensity Indicators

    Broader source: Energy.gov [DOE]

    This report describes a comprehensive system of energy intensity indicators for the United States that has been developed for the Department of Energy's Office of Energy Efficiency and Renewable Energy (EERE) over the past decade. This system of indicators is hierarchical in nature, beginning with detailed indexes of energy intensity for various sectors of the economy, which are ultimately aggregated to an overall energy intensity index for the economy as a whole. The aggregation of energy intensity indexes to higher levels in the hierarchy is performed with a version of the Log Mean Divisia index (LMDI) method. Based upon the data and methods in the system of indicators, the economy-wide energy intensity index shows a decline of about 14% in 2011 relative to a 1985 base year.

  10. Variability of Gas Composition and Flux Intensity in Natural Marine Hydrocarbon Seeps

    E-Print Network [OSTI]

    Clark, J F; Schwager, Katherine; Washburn, Libe

    2005-01-01

    of gas composition and flux intensity in natural marineof gas composition and flux intensity in natural marine

  11. Modified LMS Algorithm for Unbiased Impulse Response Estimation

    E-Print Network [OSTI]

    So, Hing-Cheung

    Modified LMS Algorithm for Unbiased Impulse Response Estimation in Nonstationary Noise H. C. So and a modified least mean squares (LMS) algorithm is then developed for accurate system identification in noise, the least mean squares (LMS) algorithm [2], which is based on the minimum mean squared error (MMSE) crite

  12. Modified Advection-Aridity Model of Evapotranspiration Jozsef Szilagyi1

    E-Print Network [OSTI]

    Szilagyi, Jozsef

    Modified Advection-Aridity Model of Evapotranspiration Jozsef Szilagyi1 ; Michael T. Hobbins2 1979 proposed the advection-aridity AA model of regional evapotranspiration based on Bouchet's 1963 ; and Janos Jozsa3 Abstract: The original and modified versions of the advection-aridity AA model of regional

  13. Modified Fresnel zone plates that produce sharp Gaussian focal spots

    E-Print Network [OSTI]

    Jahns, Jrgen

    Modified Fresnel zone plates that produce sharp Gaussian focal spots Qing Cao and Jurgen Jahns Fresnel zone plate that can produce an approximate Gaussian focal spot is proposed for the focusing of 7.7 nm can be produced by a modified Fresnel zone plate with a minimum structure size of 30 nm

  14. Infrared spectra of methyl-, and nitrogen-modified void coronene; modeling a carrier of interstellar polycyclic aromatic hydrocarbon

    E-Print Network [OSTI]

    Ota, Norio

    2015-01-01

    Void induced coronene C23H12++ was suggested to be a possible carrier of the astronomically observed polycyclic aromatic hydrocarbon (PAH), which shows unique molecular structure with carbon two pentagons connected with five hexagons. Well observed astronomical infrared spectrum from 3-15 micron could be almost reproduced based on density functional theory. However, there remain several discrepancies with observed spectra, especially on 11-15 micron band weaker intensity. Observed 11.2 micron intensity is comparable to 7.6-7.8 micron one. Methyl-modified molecule C24H14++ revealed that calculated peak height of 11.4 micron show fairly large intensity up to 70-90% compared with that of 7.6-7.8 micron band. Also, nitrogen atom was substituted to peripheral C-H site of void coronene to be C22H11N1++. Pentagon site substituted case show 60% peak height. This molecule also reproduced well 12-15 micron peak position and relative intensity. Vibration mode analysis demonstrated that 11.3 micron mode comes from C-H ou...

  15. Spatiotemporal focusing does not always improve axial intensity localization

    E-Print Network [OSTI]

    Cheng, Ya; Wang, Zhaohui; Li, Guihua; Zeng, Bin; He, Fei; Chu, Wei; Yao, Jinping; Qiao, Lingling

    2015-01-01

    We report on an experimental comparison on critical intensities of nonlinear self-focusing in air with conventional focusing and spatiotemporal focusing schemes. Our results show that the conventional focusing with the focal lens completely filled with the incident beam allows for the strongest axial intensity confinement against the self-focusing effect. This is because that in the high-numerical-aperture condition, the focal spot will have a compact size which results in a high focal intensity. Meanwhile, the Rayleigh length of the focused beam will be substantially shortened which efficiently postpones the onset of self-focusing.

  16. Channeling of intense laser beams in underdense plasmas

    SciTech Connect (OSTI)

    Feit, M.D.; Garrison, J.C.; Rubenchik, A.M.

    1997-09-01

    A hydrodynamic simulation is used to show that intense laser pulses propagating in underdense plasmas create stable, long-lived, and completely evacuated channels. At low intensities, I=10{sup 17} W/cm{sup 2}, self focusing seriously distorts the temporal envelope of the pulse, but channeling still occurs. At high intensities, I=10{sup 19} W/cm{sup 2}, channeling can proceed over many diffraction lengths with significant distortion restricted to the leading edge of the pulse. {copyright} {ital 1997} {ital The American Physical Society}

  17. Galactic Sun's motion in the Cold Dark Matter, MOdified Newtonian Dynamics and MOdified Gravity scenarios

    E-Print Network [OSTI]

    Lorenzo Iorio

    2009-08-19

    We numerically integrate the equations of motion of the Sun in Galactocentric Cartesian rectangular coordinates for -4.5 Gyr <= t <= 0 in Newtonian mechanics with two different models for the Cold Dark Matter (CDM) halo, in MOdified Newtonian Dynamics (MOND) and in MOdified Gravity (MOG) without resorting to CDM. The initial conditions used come from the latest kinematical determination of the 3D Sun's motion in the Milky Way (MW) by assuming for the rotation speed of the Local Standard of Rest (LSR) the recent value \\Theta_0=268 km s^-1 and the IAU recommended value \\Theta_0=220 km s^-1; the Sun is assumed located at 8.5 kpc from the Galactic Center (GC). For \\Theta_0=268 km s^-1 the birth of the Sun, 4.5 Gyr ago, would have occurred at large Galactocentric distances (12-27 kpc depending on the model used), while for \\Theta_0=220 km s^-1 it would have occurred at about 8.8-9.3 kpc for almost all the models used. The integrated trajectories are far from being circular, especially for \\Theta_0=268 km s^-1, and differ each other with the CDM models yielding the widest spatial extensions for the Sun's orbital path.

  18. Perihelion precession for modified Newtonian gravity

    SciTech Connect (OSTI)

    Schmidt, Hans-Juergen

    2008-07-15

    We calculate the perihelion precession {delta} for nearly circular orbits in a central potential V(r). Differently from other approaches to this problem, we do not assume that the potential is close to the Newtonian one. The main idea in the deduction is to apply the underlying symmetries of the system to show that {delta} must be a function of r{center_dot}V{sup ''}(r)/V{sup '}(r) and to use the transformation behavior of {delta} in a rotating system of reference. This is equivalent to say that the effective potential can be written in a one-parameter set of possibilities as the sum of centrifugal potential and potential of the central force. We get the following universal formula valid for V{sup '}(r)>0 reading {delta}(r)=2{pi}{center_dot}[(1/{radical}(3+r{center_dot}V{sup ''}(r)/V{sup '}(r)))-1]. It has to be read as follows: a circular orbit at this value r exists and is stable if and only if this {delta} is well-defined as real; and if this is the case, then the angular difference from one perihelion to the next one for nearly circular orbits at this r is exactly 2{pi}+{delta}(r). Then we apply this result to examples of recent interest like modified Newtonian gravity and linearized fourth-order gravity. In the second part of the paper, we generalize this universal formula to static spherically symmetric space-times ds{sup 2}=-e{sup 2{lambda}}{sup (r)}dt{sup 2}+e{sup 2{mu}}{sup (r)}dr{sup 2}+r{sup 2}d{omega}{sup 2}; for orbits near r it reads {delta}=2{pi}{center_dot}[(e{sup {mu}}{sup (r)}/{radical}(3-2r{center_dot}{lambda}{sup '}(r)+r{center_dot}{lambda}{sup ''}(r)/{lambda}{sup '}(r)))-1] and can be applied to a large class of theories. For the Schwarzschild black hole with mass parameter m>0 it leads to {delta}=2{pi}{center_dot}[(1/{radical}(1-(6m/r)))-1], a surprisingly unknown formula. It represents a strict result and is applicable for all values r>6m and is in good agreement with the fact that stable circular orbits exist for r>6m only. For r>>m, one can develop in powers of m and get the well-known approximation {delta}{approx_equal}(6{pi}m/r)

  19. Energy intensity in China's iron and steel sector

    E-Print Network [OSTI]

    Xu, Jingsi, M.C.P. Massachusetts Institute of Technology

    2011-01-01

    In this study, I examine the spatial and economic factors that influence energy intensity in China's iron and steel sector, namely industrial value added, renovation investment, coke consumption, and local coke supply. ...

  20. China energy issues : energy intensity, coal liquefaction, and carbon pricing

    E-Print Network [OSTI]

    Wu, Ning, Ph. D. Massachusetts Institute of Technology

    2011-01-01

    In my dissertation I explore three independent, but related, topics on China's energy issues. First, I examine the drivers for provincial energy-intensity trends in China, and finds that technology innovation is the key ...

  1. Engineering Strength, Porosity, and Emission Intensity of Nanostructur...

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

    Engineering Strength, Porosity, and Emission Intensity of Nanostructured CdSe Networks by Altering the Building-Block Shape Home Author: H. Yu, R. Bellair, R. M. Kannan, S. L....

  2. IFTS Intensive Course on Advanced Plasma Physics-Spring 2011,

    E-Print Network [OSTI]

    Zonca, Fulvio

    IFTS Intensive Course on Advanced Plasma Physics-Spring 2011, Non-linear charged particle dynamics/2 with the arc length along the magnetic field line, at the lowest order in the drift expansion for the charged

  3. Energy End-Use Intensities in Commercial Buildings

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

    as buildings of the 1980's. In this section, intensities are based upon the entire building stock, not just those buildings using a particular fuel for a given end use. This...

  4. 2nd conference on Intense field- Short Wavelength Atomic and...

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

    nd conference on Intense field- Short Wavelength Atomic and Molecular Processes - ISWAMP2 http:iswamp2.jlu.edu.cn July 20-22, 2013; Xi'an, China...

  5. Diurnal analysis of intensity trends in Atlantic tropical cyclones

    E-Print Network [OSTI]

    Kowch, Roman S

    2013-01-01

    I postulate that a diurnal cycle may exist in observational variables related to tropical cyclone (TC) intensity. Prior studies document a significant diurnal signal in moist convection across tropical regions. Since ...

  6. Estimating material and energy intensities of urban areas

    E-Print Network [OSTI]

    Quinn, David James, Ph. D. Massachusetts Institute of Technology

    2012-01-01

    The objective of this thesis is to develop methods to estimate, analyze and visualize the resource intensity of urban areas. Understanding the resource consumption of the built environment is particularly relevant in cities ...

  7. precipitation frequency & intensity in instantaneous and aggregated data

    E-Print Network [OSTI]

    Kuang, Zhiming

    precipitation frequency & intensity in instantaneous and aggregated data Michela Biasutti1, Sandra - Ocean Implications (and a suggestion for model diagnostics) Outline #12;4 Minute-by-minute precipitation

  8. Observational tests of hurricane intensity estimations using GPS radio occultations

    E-Print Network [OSTI]

    Vergados, Panagiotis

    This study presents a novel approach to estimating the intensity of hurricanes using temperature profiles from Global Positioning System radio occultation (GPSRO) measurements. Previous research has shown that the temperature ...

  9. Modifying Nanotubes Chemistry and Electronics of Carbon Nanotubes

    E-Print Network [OSTI]

    Joselevich, Ernesto

    Modifying Nanotubes Chemistry and Electronics of Carbon Nanotubes Go Together Ernesto Joselevich* Keywords: chemical reactivity electronic structure molecular electronics nanotechnology nanotubes) in nanoelectronics is the control of their electronic properties, which can be either metallic or semi- conducting

  10. Genetically modified food and crops: perceptions of risks

    E-Print Network [OSTI]

    Hall, Clare R.

    2010-01-01

    The debate around genetically modified food and crops has proved to be complex and far-reaching, involving diverse stakeholder groups and many issues. Although the extent of global uptake of GM crops has been substantial ...

  11. Enhancing Protein-Resistance of PEO-Modified Biomaterials

    E-Print Network [OSTI]

    Murthy, Ranjini

    2010-01-16

    -RESISTANCE OF PEO-MODIFIED BIOMATERIALS A Dissertation by RANJINI MURTHY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2009 Major... Subject: Materials Science and Engineering ENHANCING PROTEIN-RESISTANCE OF PEO-MODIFIED BIOMATERIALS A Dissertation by RANJINI MURTHY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...

  12. Method for modifying trigger level for adsorber regeneration

    DOE Patents [OSTI]

    Ruth, Michael J.; Cunningham, Michael J.

    2010-05-25

    A method for modifying a NO.sub.x adsorber regeneration triggering variable. Engine operating conditions are monitored until the regeneration triggering variable is met. The adsorber is regenerated and the adsorbtion efficiency of the adsorber is subsequently determined. The regeneration triggering variable is modified to correspond with the decline in adsorber efficiency. The adsorber efficiency may be determined using an empirically predetermined set of values or by using a pair of oxygen sensors to determine the oxygen response delay across the sensors.

  13. Solar System experiments do not yet veto modified gravity models

    E-Print Network [OSTI]

    Valerio Faraoni

    2006-07-05

    The dynamical equivalence between modified and scalar-tensor gravity theories is revisited and it is concluded that it breaks down in the limit to general relativity. A gauge-independent analysis of cosmological perturbations in both classes of theories lends independent support to this conclusion. As a consequence, the PPN formalism of scalar-tensor gravity and Solar System experiments do not veto modified gravity, as previously thought.

  14. White Oak Dam stability analysis. Volume I

    SciTech Connect (OSTI)

    Ahmed, S.B.

    1994-01-01

    A parametric study was conducted to evaluate the stability of the White Oak Dam (WOD) embankment and foundation. Slope stability analyses were performed for the upper and lower bound soil properties at three sections of the dam using the PCSTABL4 computer program. Minimum safety factors were calculated for the applicable seismic and static loading conditions. Liquefaction potential of the dam embankment and foundation solid during the seismic event was assessed by using simplified procedures. The WOD is classified as a low hazard facility and the Evaluation Basis Earthquake (EBE) is defined as an earthquake with a magnitude of m{sub b} = 5.6 and a Peak Ground Accelerator (PGA) of 0.13 g. This event is approximately equivalent to a Modified Mercalli Intensity of VI-VIII. The EBE is used to perform the seismic evaluation for slope stability and liquefaction potential. Results of the stability analyses and the liquefaction assessment lead to the conclusion that the White Oak Dam is safe and stable for the static and the seismic events defined in this study. Ogden Environmental, at the request of MMES, has checked and verified the calculations for the critical loading conditions and performed a peer review of this report. Ogden has determined that the WOD is stable under the defined static and seismic loading conditions and the embankment materials are in general not susceptible to liquefaction.

  15. The Market Effect of a Food Scare: The Case of Genetically Modified StarLink Corn

    E-Print Network [OSTI]

    Carter, Colin A.; Smith, Aaron

    2004-01-01

    risk from genetically modified (GM) food. We analyze theof a Food Scare: The Case of Genetically Modified StarLinkof a Food Scare: The Case of Genetically Modified StarLink

  16. Perspectives of people in Mali toward genetically-modified mosquitoes for malaria control

    E-Print Network [OSTI]

    Marshall, John M; Tour, Mahamoudou B; Traore, Mohamed M; Famenini, Shannon; Taylor, Charles E

    2010-01-01

    vector Anopholes gambiae, in Mali, West Africa. GeneticsPerspectives of people in Mali toward genetically-modifiedPerspectives of people in Mali toward genetically-modified

  17. Modified T4 Lysozyme Fusion Proteins Facilitate G Protein-Coupled...

    Office of Scientific and Technical Information (OSTI)

    Modified T4 Lysozyme Fusion Proteins Facilitate G Protein-Coupled Receptor Crystallogenesis Citation Details In-Document Search Title: Modified T4 Lysozyme Fusion Proteins...

  18. Interpreting the unresolved intensity of cosmologically redshifted line radiation

    E-Print Network [OSTI]

    Switzer, Eric R; Masui, Kiyoshi W; Pen, Ue-Li; Voytek, Tabitha C

    2015-01-01

    Intensity mapping experiments survey the spectrum of diffuse line radiation rather than detect individual objects at high signal-to-noise. Spectral maps of unresolved atomic and molecular line radiation contain three-dimensional information about the density and environments of emitting gas, and efficiently probe cosmological volumes out to high redshift. Intensity mapping survey volumes also contain all other sources of radiation at the frequencies of interest. Continuum foregrounds are typically ~10^2-10^3 times brighter than the cosmological signal. The instrumental response to bright foregrounds will produce new spectral degrees of freedom that are not known in advance, nor necessarily spectrally smooth. The intrinsic spectra of foregrounds may also not be well-known in advance. We describe a general class of quadratic estimators to analyze data from single-dish intensity mapping experiments, and determine contaminated spectral modes from the data itself. The key attribute of foregrounds is not that they ...

  19. Energy Intensity Trends in AEO2010 (released in AEO2010)

    Reports and Publications (EIA)

    2010-01-01

    Energy intensity (energy consumption per dollar of real GDP) indicates how much energy a country uses to produce its goods and services. From the early 1950s to the early 1970s, U.S. total primary energy consumption and real GDP increased at nearly the same annual rate. During that period, real oil prices remained virtually flat. In contrast, from the mid-1970s to 2008, the relationship between energy consumption and real GDP growth changed, with primary energy consumption growing at less than one-third the previous average rate and real GDP growth continuing to grow at its historical rate. The decoupling of real GDP growth from energy consumption growth led to a decline in energy intensity that averaged 2.8% per year from 1973 to 2008. In the Annual Energy Outlook 2010 Reference case, energy intensity continues to decline, at an average annual rate of 1.9% from 2008 to 2035.

  20. Intense Muon Beams for Experiments at Project X

    SciTech Connect (OSTI)

    C.M. Ankenbrandt, R.P. Johnson, C. Y. Yoshikawa, V.S. Kashikhin, D.V. Neuffer, J. Miller, R.A. Rimmer

    2011-03-01

    A coherent approach for providing muon beams to several experiments for the intensity-frontier program at Project X is described. Concepts developed for the front end of a muon collider/neutrino factory facility, such as phase rotation and ionization cooling, are applied, but with significant differences. High-intensity experiments typically require high-duty-factor beams pulsed at a time interval commensurate with the muon lifetime. It is challenging to provide large RF voltages at high duty factor, especially in the presence of intense radiation and strong magnetic fields, which may preclude the use of superconducting RF cavities. As an alternative, cavities made of materials such as ultra-pure Al and Be, which become very good but not super conductors at cryogenic temperatures, can be used.

  1. Foreground Subtraction in Intensity Mapping with the SKA

    E-Print Network [OSTI]

    Wolz, Laura; Alonso, David; Blake, Chris; Bull, Philip; Chang, Tzu-Ching; Ferreira, Pedro G; Kuo, Cheng-Yu; Santos, Marios G; Shaw, Richard

    2015-01-01

    21cm intensity mapping experiments aim to observe the diffuse neutral hydrogen (HI) distribution on large scales which traces the Cosmic structure. The Square Kilometre Array (SKA) will have the capacity to measure the 21cm signal over a large fraction of the sky. However, the redshifted 21cm signal in the respective frequencies is faint compared to the Galactic foregrounds produced by synchrotron and free-free electron emission. In this article, we review selected foreground subtraction methods suggested to effectively separate the 21cm signal from the foregrounds with intensity mapping simulations or data. We simulate an intensity mapping experiment feasible with SKA phase 1 including extragalactic and Galactic foregrounds. We give an example of the residuals of the foreground subtraction with a independent component analysis and show that the angular power spectrum is recovered within the statistical errors on most scales. Additionally, the scale of the Baryon Acoustic Oscillations is shown to be unaffecte...

  2. Simulating the Large-Scale Structure of HI Intensity Maps

    E-Print Network [OSTI]

    Seehars, Sebastian; Witzemann, Amadeus; Refregier, Alexandre; Amara, Adam; Akeret, Joel

    2015-01-01

    Intensity mapping of neutral hydrogen (HI) is a promising observational probe of cosmology and large-scale structure. We present wide field simulations of HI intensity maps based on N-body simulations, the halo model, and a phenomenological prescription for assigning HI mass to halos. The simulations span a redshift range of 0.35 HI. We apply and compare several estimators for the angular power spectrum and its covariance. We verify that they agree with analytic predictions on large scales and study the validity of approximations based on Gaussian random fields, particularly in the context of the covariance. We discuss how our results and the simulated maps can be useful for planning and interpreting future HI intensity mapping surveys.

  3. Numerical solution of transient eddy current problems with input current intensities as boundary data

    E-Print Network [OSTI]

    Rodríguez, Rodolfo

    Numerical solution of transient eddy current problems with input current intensities as boundary to solve transient eddy current problems with input current intensities as data, formulated in terms: Eddy current problems, time-dependent electromagnetic problems, input current intensities, finite

  4. Measurements of integral muon intensity at large zenith angles

    E-Print Network [OSTI]

    A. N. Dmitrieva; D. V. Chernov; R. P. Kokoulin; K. G. Kompaniets; G. Mannocchi; A. A. Petrukhin; O. Saavedra; V. V. Shutenko; D. A. Timashkov; G. Trinchero; I. I. Yashin

    2006-11-28

    High-statistics data on near-horizontal muons collected with Russian-Italian coordinate detector DECOR are analyzed. Precise measurements of muon angular distributions in zenith angle interval from 60 to 90 degrees have been performed. In total, more than 20 million muons are selected. Dependences of the absolute integral muon intensity on zenith angle for several threshold energies ranging from 1.7 GeV to 7.2 GeV are derived. Results for this region of zenith angles and threshold energies have been obtained for the first time. The dependence of integral intensity on zenith angle and threshold energy is well fitted by a simple analytical formula.

  5. High intensity proton operation at the Brookhaven AGS accelerator complex

    SciTech Connect (OSTI)

    Ahrens, L.A.; Blaskiewicz, M.; Bleser, E.; Brennan, J.M.; Gardner, C.; Glenn, J.W.; Onillon, E.; Reece, R.K.; Roser, T.; Soukas, A.

    1994-08-01

    With the completion of the AGS rf upgrade, and the implementation of a transition {open_quotes}jump{close_quotes}, all of accelerator systems were in place in 1994 to allow acceleration of the proton intensity available from the AGS Booster injector to AGS extraction energy and delivery to the high energy users. Beam commissioning results with these new systems are presented. Progress in identifying and overcoming other obstacles to higher intensity are given. These include a careful exploration of the stopband strengths present on the AGS injection magnetic porch, and implementation of the AGS single bunch transverse dampers throughout the acceleration cycle.

  6. Energy use and carbon dioxide emissions in energy-intensive industries in key developing countries

    E-Print Network [OSTI]

    Price, Lynn; Worrell, Ernst; Phylipsen, Dian

    1999-01-01

    Energy Efficiency and Carbon Dioxide Emissions ReductionEnergy Use and Carbon Dioxide Emissions in Energy-IntensiveEnergy Use and Carbon Dioxide Emissions in Energy-Intensive

  7. Experiments at the Intensity Frontier | U.S. DOE Office of Science...

    Office of Science (SC) Website

    Intensity Frontier High Energy Physics (HEP) HEP Home About Research Facilities User Facilities Facility Ops Experiments at the Energy Frontier Experiments at the Intensity...

  8. Massive gravitational waves in Chern-Simons modified gravity

    SciTech Connect (OSTI)

    Myung, Yun Soo; Moon, Taeyoon E-mail: tymoon@inje.ac.kr

    2014-10-01

    We consider the nondynamical Chern-Simons (nCS) modified gravity, which is regarded as a parity-odd theory of massive gravity in four dimensions. We first find polarization modes of gravitational waves for ?=x/? in nCS modified gravity by using the Newman-Penrose formalism where the null complex tetrad is necessary to specify gravitational waves. We show that in the NewmanPenrose formalism, the number of polarization modes is one in addition to an unspecified ?{sub 4}, implying three degrees of freedom for ?=x/?. This compares with two for a canonical embedding of ?=t/?. Also, if one introduces the Ricci tensor formalism to describe a massive graviton arising from the nCS modified gravity, one finds one massive mode after making second-order wave equations, which is compared to five found from the parity-even EinsteinWeyl gravity.

  9. The kinetic Sunyaev-Zeldovich effect in modified gravity

    E-Print Network [OSTI]

    Bianchini, Federico

    2015-01-01

    We investigate the impact of modified theories of gravity on the kinetic Sunyaev-Zeldovich (kSZ) effect of the cosmic microwave background. We focus on a specific class of $f(R)$ models of gravity and compare their predictions for the kSZ power spectrum to that of the $\\Lambda$CDM model. We use a publicly available modified version of Halofit to properly include the nonlinear matter power spectrum of $f(R)$ in the modeling of the kSZ signal. We find that the well known modifications of the growth rate of structure in $f(R)$ can indeed induce sizable changes in the kSZ signal, which are more significant than the changes induced by modifications of the expansion history. We discuss prospects of using the kSZ signal as a complementary probe of modified gravity, giving an overview of assumptions and possible caveats in the modeling.

  10. Acidity characterization of a titanium and sulfate modified vermiculite

    SciTech Connect (OSTI)

    Hernandez, W.Y.; Centeno, M.A.; Odriozola, J.A.; Moreno, S.; Molina, R.

    2008-07-01

    A natural vermiculite has been modified with titanium and sulfated by the intercalation and impregnation method in order to optimize the acidity of the clay mineral, and characterization of samples were analyzed by X-ray fluorescence (XRF), X-ray diffraction (XRD), nitrogen adsorption isotherms, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and temperature programmed desorption with ammonia (TPD-NH{sub 3}). All the modified solids have a significantly higher number of acidic sites with respect to the parent material and in all of these, Broensted as well as Lewis acidity are identified. The presence of sulfate appears not to increase the number of acidic centers in the modified clay. For the materials sulfated with the intercalation method, it is observed that the strength of the acidic sites found in the material increases with the nominal sulfate/metal ratio. Nevertheless, when elevated quantities of sulfur are deposited, diffusion problems in the heptane reaction appear.

  11. Method of detecting luminescent target ions with modified magnetic microspheres

    DOE Patents [OSTI]

    Shkrob, Ilya A; Kaminski, Michael D

    2014-05-13

    This invention provides methods of using modified magnetic microspheres to extract target ions from a sample in order to detect their presence in a microfluidic environment. In one or more embodiments, the microspheres are modified with molecules on the surface that allow the target ions in the sample to form complexes with specific ligand molecules on the microsphere surface. In one or more embodiments, the microspheres are modified with molecules that sequester the target ions from the sample, but specific ligand molecules in solution subsequently re-extract the target ions from the microspheres into the solution, where the complexes form independent of the microsphere surface. Once the complexes form, they are exposed to an excitation wavelength light source suitable for exciting the target ion to emit a luminescent signal pattern. Detection of the luminescent signal pattern allows for determination of the presence of the target ions in the sample.

  12. ANALYSIS OF OUT OF DATE MCU MODIFIER LOCATED IN SRNL

    SciTech Connect (OSTI)

    Crawford, C.

    2014-10-22

    SRNL recently completed density measurements and chemical analyses on modifier samples stored in drums within SRNL. The modifier samples date back to 2008 and are in various quantities up to 40 gallons. Vendor information on the original samples indicates a shelf life of 5 years. There is interest in determining if samples that have been stored for more than the 5 year shelf life are still acceptable for use. The Modular Caustic Side Solvent Extraction Unit (MCU) Solvent component Cs-7SB [(2,2,3,3- tetraflouropropoxy)-3-(4-sec-butylphenoxy)-2-propanol, CAS #308362-88-1] is used as a diluent modifier to increase extractant solubility and provide physical characteristics necessary for diluent trimming.

  13. The modified equation for spinless particles and superalgebra

    SciTech Connect (OSTI)

    Sadeghi, J.; Rostami, M.; Sadeghi, Z.

    2013-09-15

    In this paper we consider modified wave equations for spinless particles in an external magnetic field. We consider 4-potentials which guarantee Lorentz' and Coulomb's conditions. The new variable for modified wave equation leads us to consider the associated Laguerre differential equation. We take advantage of the factorization method in Laguerre differential equation and solve the modified equation. In order to obtain the wave function, energy spectrum and its quantization, we will establish conditions for the orbital quantum number. We account such orbital quantum number and obtain the raising and lowering operators. If we want to have supersymmetry partners, we need to apply the shape invariance condition. This condition for the partner potential will help us find the limit of ? as ?=?(l)

  14. Intensive neutrino source on the base of lithium converter

    E-Print Network [OSTI]

    Lyashuk, V I

    2015-01-01

    An intensive antineutrino source with a hard spectrum (with energy up to 13 MeV, average energy 6.5 MeV) can be realized on the base of beta-decay of short living isotope 8Li (0.84 s). The 8Li isotope (generated in activation of 7Li isotope) is a prime perspective antineutrino source owing to the hard antineutrino spectrum and square dependence of cross section on the energy. Up today nuclear reactors are the most intensive neutrino sources. Antineutrino reactor spectra have large uncertainties in the summary antineutrino spectrum at energy E>6 MeV. Use of 8Li isotope allows to decrease sharply the uncertainties or to exclude it completely. An intensive neutron fluxes are requested for rapid generation of 8Li isotope. The installations on the base of nuclear reactors can be an alternative for nuclear reactors as traditional neutron sources. It is possible creation of neutrino sources another in principle: on the base of tandem of accelerators, neutron generating targets and lithium converter. An intensive neu...

  15. PNNLs Data Intensive Computing research battles Homeland Security threats

    ScienceCinema (OSTI)

    David Thurman; Joe Kielman; Katherine Wolf; David Atkinson

    2012-12-31

    The Pacific Northwest National Laboratorys (PNNL's) approach to data intensive computing (DIC) is focused on three key research areas: hybrid hardware architecture, software architectures, and analytic algorithms. Advancements in these areas will help to address, and solve, DIC issues associated with capturing, managing, analyzing and understanding, in near real time, data at volumes and rates that push the frontiers of current technologies.

  16. Explosive photodissociation of methane induced by ultrafast intense laser

    SciTech Connect (OSTI)

    Kong Fanao; Luo Qi; Xu Huailiang; Sharifi, Mehdi; Song Di; Chin, See Leang

    2006-10-07

    A new type of molecular fragmentation induced by femtosecond intense laser at the intensity of 2x10{sup 14} W/cm{sup 2} is reported. For the parent molecule of methane, ethylene, n-butane, and 1-butene, fluorescence from H (n=3{yields}2), CH (A {sup 2}{delta}, B {sup 2}{sigma}{sup -}, and C {sup 2}{sigma}{sup +}{yields}X {sup 2}{pi}), or C{sub 2} (d {sup 3}{pi}{sub g}{yields}a {sup 3}{pi}{sub u}) is observed in the spectrum. It shows that the fragmentation is a universal property of neutral molecule in the intense laser field. Unlike breaking only one or two chemical bonds in conventional UV photodissociation, the fragmentation caused by the intense laser undergoes vigorous changes, breaking most of the bonds in the molecule, like an explosion. The fragments are neutral species and cannot be produced through Coulomb explosion of multiply charged ion. The laser power dependence of CH (A{yields}X) emission of methane on a log-log scale has a slope of 10{+-}1. The fragmentation is thus explained as multiple channel dissociation of the superexcited state of parent molecule, which is created by multiphoton excitation.

  17. PNNL Data-Intensive Computing for a Smarter Energy Grid

    ScienceCinema (OSTI)

    Carol Imhoff; Zhenyu (Henry) Huang; Daniel Chavarria

    2012-12-31

    The Middleware for Data-Intensive Computing (MeDICi) Integration Framework, an integrated platform to solve data analysis and processing needs, supports PNNL research on the U.S. electric power grid. MeDICi is enabling development of visualizations of grid operations and vulnerabilities, with goal of near real-time analysis to aid operators in preventing and mitigating grid failures.

  18. Continuous Snow Depth, Intensive Site 1, Barrow, Alaska

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

    Bob Busey; Larry Hinzman; Vladimir Romanovsky; William Cable

    Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

  19. Solar panels are cost intensive, have limitations with respect to

    E-Print Network [OSTI]

    Langendoen, Koen

    Solar panels are cost intensive, have limitations with respect to where they can be integrated of the window, integrated in the window frames, strip-shaped CIGS PV solar cells convert the light the CIGS PV solar cells in the form of strips at the edges of the window in the window frame. These solar

  20. IFTS Intensive Course on Advanced Plasma Physics-Spring 2011,

    E-Print Network [OSTI]

    Zonca, Fulvio

    IFTS Intensive Course on Advanced Plasma Physics-Spring 2011, Non-linear charged particle dynamics, the arc length along the magnetic field line and J the second invariant. (iii) In a large aspect ration), Ann. Phys. 41, 302), where the authors show that, when studying the physics of magnetized plasmas

  1. High Intensity Muon Beams in Osaka -MuSIC

    E-Print Network [OSTI]

    McDonald, Kirk

    High Intensity Muon Beams in Osaka - MuSIC Yoshitaka Kuno Osaka Unviersity, Osaka, Japan ! THB2014 Muon Transport COMET MuSIC facility at Osaka University MuSIC stage-I for SR PRISM demonstration at MuSIC Phase Rotation at FFAG Summary #12;Muon Beam Sources #12;ISIS EM, RIKEN-RAL J-PARC, MUSE

  2. Continuous Snow Depth, Intensive Site 1, Barrow, Alaska

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

    Bob Busey; Larry Hinzman; Vladimir Romanovsky; William Cable

    2014-11-06

    Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

  3. Surface Intensive Materials Processing for Multi-Functional Purposes

    SciTech Connect (OSTI)

    Ila, D.; Williams, E.K.; Muntele, C.I.; George, M.A.; Poker, D.B.; Hensley, D.K.; Larkin, D.J.

    2000-03-06

    We have chosen silicon carbide (SiC) as a multi-functional material to demonstrate the application of surface intensive processing for device fabrication. We will highlight two devices which are produced in house at the Center for Irradiation of materials of Alabama A and M university: (A) High temperature electronic gas sensor, (B) High temperature optical properties/sensor.

  4. Gamma Ray Bursts Sudden, intense flashes of gamma rays

    E-Print Network [OSTI]

    Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

    Gamma Ray Bursts #12;The Case Sudden, intense flashes of gamma rays come from nowhere and disappear with out a trace. Incredibly powerful: A single gamma ray burst is hundreds of times brighter a supernova #12;Who Vela (1960's) Looking for arms testing, found gamma ray bursts Compton Gamma Ray Observatory

  5. PNNL pushing scientific discovery through data intensive computing breakthroughs

    ScienceCinema (OSTI)

    Deborah Gracio; David Koppenaal; Ruby Leung

    2012-12-31

    The Pacific Northwest National Laboratorys approach to data intensive computing (DIC) is focused on three key research areas: hybrid hardware architectures, software architectures, and analytic algorithms. Advancements in these areas will help to address, and solve, DIC issues associated with capturing, managing, analyzing and understanding, in near real time, data at volumes and rates that push the frontiers of current technologies.

  6. Drift tube suspension for high intensity linear accelerators

    DOE Patents [OSTI]

    Liska, D.J.; Schamaun, R.G.; Clark, D.C.; Potter, R.C.; Frank, J.A.

    1980-03-11

    The disclosure relates to a drift tube suspension for high intensity linear accelerators. The system comprises a series of box-sections girders independently adjustably mounted on a linear accelerator. A plurality of drift tube holding stems are individually adjustably mounted on each girder.

  7. Intense Lithium Streams in Tokamaks 1 Leonid E. Zakharov,

    E-Print Network [OSTI]

    Zakharov, Leonid E.

    Intense Lithium Streams in Tokamaks 1 Leonid E. Zakharov, Princeton University, Princeton Plasma. Temperature of the streams. 2. Lithium jets. 3. Injection into vacuum chamber. 4. Propulsion inside the vacuum chamber. 5. Stability of the lithium streams. 6. Expulsion of the lithium. 7. Summary. PRINCETON PLASMA

  8. Intensity Based Image Registration By Nonparametric Local Smoothing

    E-Print Network [OSTI]

    Qiu, Peihua

    features is often a challenging and time-consuming process, intensity-based image registration, by which of this technique is to integrate useful information from different sources (e.g., CT, PET, SPECT, X-ray, ultrasound an important tool for improving the quality of certain image-based technologies [21]. Mathematically, the image

  9. Intensity Based Image Registration By Nonparametric Local Smoothing

    E-Print Network [OSTI]

    Qiu, Peihua

    features is often a challenging and time­consuming process, intensity­based image registration, by which of this technique is to integrate useful information from different sources (e.g., CT, PET, SPECT, X­ray, ultrasound an important tool for improving the quality of certain image­based technologies [21]. Mathematically, the image

  10. Global warming and hurricane intensity and frequency: The debate continues

    E-Print Network [OSTI]

    Kareem, Ahsan

    Global warming and hurricane intensity and frequency: The debate continues Megan Mc mmccull3@nd.edu ABSTRACT: The recent destruction due to hurricanes and the apparent increase in frequency. Warm water holds more energy to fuel hurricanes and may contribute to the conditions needed

  11. Structural resistance of chemically modified 1-D nanostructured titanates in inorganic acid environment

    SciTech Connect (OSTI)

    Marinkovic, Bojan A.; Fredholm, Yann C.; Morgado, Edisson

    2010-10-15

    Sodium containing one-dimensional nanostructured layered titanates (1-D NSLT) were produced both from commercial anatase powder and Brazilian natural rutile mineral sands by alkali hydrothermal process. The 1-D NSLT were chemically modified with proton, cobalt or iron via ionic exchange and all products were additionally submitted to intensive inorganic acid aging (pH = 0.5) for 28 days. The morphology and crystal structure transformations of chemically modified 1-D NSLT were followed by transmission electron microscopy, powder X-ray diffraction, selected area electron diffraction and energy dispersive spectroscopy. It was found that the original sodium rich 1-D NSLT and cobalt substituted 1-D NSLT were completely converted to rutile nanoparticles, while the protonated form was transformed in a 70%-30% (by weight) anatase-rutile nanoparticles mixture, very similar to that of the well-known TiO{sub 2}-photocatalyst P25 (Degussa). The iron substituted 1-D NSLT presented better acid resistance as 13% of the original structure and morphology remained, the rest being converted in rutile. A significant amount of remaining 1-D NSLT was also observed after the acid treatment of the product obtained from rutile sand. The results showed that phase transformation of NSLT into titanium dioxide polymorph in inorganic acid conditions were controllable by varying the exchanged cations. Finally, the possibility to transform, through acid aging, 1-D NSLT obtained from Brazilian natural rutile sand into TiO{sub 2}-polymorphs was demonstrated for the first time to the best of authors' knowledge, opening path for producing TiO{sub 2}-nanoproducts with different morphologies through a simple process and from a low cost precursor.

  12. Minimum length, extra dimensions, modified gravity and black hole remnants

    SciTech Connect (OSTI)

    Maziashvili, Michael

    2013-03-01

    We construct a Hilbert space representation of minimum-length deformed uncertainty relation in presence of extra dimensions. Following this construction, we study corrections to the gravitational potential (back reaction on gravity) with the use of correspondingly modified propagator in presence of two (spatial) extra dimensions. Interestingly enough, for r?0 the gravitational force approaches zero and the horizon for modified Schwarzschild-Tangherlini space-time disappears when the mass approaches quantum-gravity energy scale. This result points out to the existence of zero-temperature black hole remnants in ADD brane-world model.

  13. Modified Debye-Huckel Electron Shielding and Penetration Factor

    E-Print Network [OSTI]

    P. Quarati; A. M. Scarfone

    2007-09-24

    Screened potential, modified by non standard electron cloud distributions responsible for the shielding effect on fusion of reacting nuclei in astrophysical plasmas, is derived. The case of clouds with depleted tails in space coordinates is discussed. The modified screened potential is obtained both from statistical mechanics arguments based on fluctuations of the inverse of the Debye-Huckel radius and from the solution of a Bernoulli equation used in generalized statistical mechanics. Plots and tables useful in evaluating penetration probability at any energy are provided.

  14. Miniature modified Faraday cup for micro electron beams

    DOE Patents [OSTI]

    Teruya, Alan T. (Livermore, CA); Elmer, John W. (Danville, CA); Palmer, Todd A. (Livermore, CA); Walton, Chris C. (Berkeley, CA)

    2008-05-27

    A micro beam Faraday cup assembly includes a refractory metal layer with an odd number of thin, radially positioned traces in this refractory metal layer. Some of the radially positioned traces are located at the edge of the micro modified Faraday cup body and some of the radially positioned traces are located in the central portion of the micro modified Faraday cup body. Each set of traces is connected to a separate data acquisition channel to form multiple independent diagnostic networks. The data obtained from the two diagnostic networks are combined and inputted into a computed tomography algorithm to reconstruct the beam shape, size, and power density distribution.

  15. Effect of optically modified polyethylene terephthalate fiber socks on chronic foot pain

    E-Print Network [OSTI]

    York, Robyn MB; Gordon, Ian L

    2009-01-01

    of optically modified polyethylene terephthalate fiber sockswhether socks made from polyethylene terephthalate (PET)

  16. Clinical Utility of the Modified Segmental Boost Technique for Treatment of the Pelvis and Inguinal Nodes

    SciTech Connect (OSTI)

    Moran, M.S.; Castrucci, W.A.; Ahmad, M.; Song, H.; Lund, M.W.; Mani, S.; Chamberlain, Daniel; Higgins, S.A.

    2010-03-15

    Purpose: Low-lying pelvic malignancies often require simultaneous radiation to pelvis and inguinal nodes. We previously reported improved homogeneity with the modified segmental boost technique (MSBT) compared to that with traditional methods, using phantom models. Here we report our institutional clinical experience with MSBT. Methods and Materials: MSBT patients from May 2001 to March 2007 were evaluated. Parameters analyzed included isocenter/multileaf collimation shifts, time per fraction (four fields), monitor units (MU)/fraction, femoral doses, maximal dose relative to body mass index, and inguinal node depth. In addition, a dosimetric comparison of the MSBT versus intensity modulated radiation therapy (IMRT) was conducted. Results: Of the 37 MSBT patients identified, 32 were evaluable. Port film adjustments were required in 6% of films. Median values for each analyzed parameter were as follows: MU/fraction, 298 (range, 226-348); delivery time, 4 minutes; inguinal depth, 4.5 cm; volume receiving 45 Gy (V45), 7%; V27.5, 87%; body mass index, 25 (range, 16.0-33.8). Inguinal dose was 100% in all cases; in-field inhomogeneity ranged from 111% to 118%. IMRT resulted in significantly decreased dose to normal tissue but required more time for treatment planning and a higher number of MUs (1,184 vs. 313 MU). Conclusions: In our clinical experience, the mono-isocentric MSBT provides a high degree of accuracy, improved homogeneity compared with traditional techniques, ease of simulation, treatment planning, treatment delivery, and acceptable femoral doses for pelvic/inguinal radiation fields requiring 45 to 50.4 Gy. In addition, the MSBT delivers a relatively uniform dose distribution throughout the treatment volume, despite varying body habitus. Clinical scenarios for the use of MSBT vs. intensity-modulated radiation therapy are discussed. To our knowledge, this is the first study reporting the utility of MSBT in the clinical setting.

  17. Surface composition, microstructure and corrosion resistance of AZ31 magnesium alloy irradiated by high-intensity pulsed ion beam

    SciTech Connect (OSTI)

    Li, P., E-mail: pli@sqnc.edu.cn [Department of Physics and Information Engineering, Shangqiu Normal University, Shangqiu 476000 (China); Surface Engineering Laboratory, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Lei, M.K., E-mail: surfeng@dlut.edu.cn [Surface Engineering Laboratory, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Zhu, X.P. [Surface Engineering Laboratory, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China)

    2011-06-15

    High-intensity pulsed ion beam (HIPIB) irradiation of AZ31 magnesium alloy is performed and electrochemical corrosion experiment of irradiated samples is carried out by using potentiodynamic polarization technology in order to explore the effect of HIPIB irradiation on corrosion resistance of magnesium alloy. The surface composition, cross-sectional morphology and microstructure are characterized by using electron probe microanalyzer, optical microscope and transmission electron microscope, respectively. The results indicated that HIPIB irradiation leads to a significant improvement in corrosion resistance of magnesium alloy, in terms of the considerable increase in both corrosion potential and pitting breakdown potential. The microstructural refinement and surface purification induced by HIPIB irradiation are responsible for the improved corrosion resistance. - Research Highlights: {yields} A modified layer about 30 {mu}m thick is obtained by HIPIB irradiation. {yields} Selective ablation of element/impurity phase having lower melting point is observed. {yields} More importantly, microstructural refinement occurred on the irradiated surface. {yields} The modified layer exhibited a significantly improved corrosion resistance. {yields} Improved corrosion resistance is ascribed to the combined effect induced by HIPIB.

  18. Method of storing radioactive wastes using modified tobermorite

    DOE Patents [OSTI]

    Komarneni, Sridhar (State College, PA); Roy, Della M. (State College, PA)

    1985-01-01

    A new cation exchanger is a modified tobermorite containing aluminum isomorphously substituted for silicon and containing sodium or potassium. The exchanger is selective for lead, rubidium, cobalt and cadmium and is selective for cesium over calcium or sodium. The tobermorites are compatable with cement and are useful for the long-term fixation and storage of radioactive nuclear wastes.

  19. Organically modified silicate coatings for optical fibers A. B. Wojcik

    E-Print Network [OSTI]

    Matthewson, M. John

    Organically modified silicate coatings for optical fibers A. B. Wojcik L. C. Klein V. V. Rondinella been prepared to be used as protective coatings for optical fibers. The synthesis involves the reaction, solvent-free resins were obtained that hardened in seconds when exposed to UV radiation. The coating

  20. Poly(ethylene glycol)-Modified Ligninase Enhances Pentachlorophenol

    E-Print Network [OSTI]

    Wang, Ping

    Poly(ethylene glycol)-Modified Ligninase Enhances Pentachlorophenol Biodegradation in Water-mail: ekn@ornl.gov Received 7 May 1998; accepted 5 December 1998 Abstract: Polychlorinated hydrocarbons are prevalent environmental contaminants whose rates of biodegrada- tion are limited by their minimal

  1. MODIFIED SOLAR INSOLATION AS AN AGRONOMIC FACTOR IN TERRACED ENVIRONMENTS

    E-Print Network [OSTI]

    Evans, Tom

    of altitude, latitude, slope aspect, slope angle, and season. The net solar benet or cost from slope levelingMODIFIED SOLAR INSOLATION AS AN AGRONOMIC FACTOR IN TERRACED ENVIRONMENTS T. P. EVANS*1 AND B; Accepted 16 August 1999 ABSTRACT We present a model that calculates incident solar radiation falling

  2. Acid-Induced Gelation of Enzymatically Modified, Preheated Whey Proteins

    E-Print Network [OSTI]

    Khan, Saad A.

    Acid-Induced Gelation of Enzymatically Modified, Preheated Whey Proteins AHMED S. EISSA AND SAAD A, North Carolina 27695-7905 Low-pH whey protein gels are formulated using a sequential protocol of heat-catalyzed -(-glutamyl)- lysine linkages, both at neutral pH, produce a polymerized protein solution. The molecular

  3. IRA Pivot Table Review Using Analyze to Modify Reports

    E-Print Network [OSTI]

    1 IRA Pivot Table Review and Using Analyze to Modify Reports For help, email Financial.Reports in a downloadable table) and summarizes them at a higher level using a defined structure. For help, email Financial.Reports@dartmouth.edu Grand Total Section is a pivot table of the detail in the downloadable table or report table. #12;3 What

  4. On the test of the modified BCS at finite temperature

    E-Print Network [OSTI]

    Nguyen Dinh Dang; Akito Arima

    2006-10-06

    The results and conclusions by Ponomarev and Vdovin [Phys. Rev. C {\\bf 72}, 034309 (2005)] are inadequate to judge the applicability of the modified BCS because they were obtained either in the temperature region, where the use of zero-temperature single-particle spectra is no longer justified, or in too limited configuration spaces.

  5. RESERVOIR SIMULATION USING MIXED METHODS, A MODIFIED METHOD CHARACTERISTICS,

    E-Print Network [OSTI]

    Russell, Thomas F.

    RESERVOIR SIMULATION USING MIXED METHODS, A MODIFIED METHOD CHARACTERISTICS, AND LOCAL GRID Mathematical models for reservoir ow are governed by partial di#11;erential equations whose solution may v is the total Darcy velocity, p the total uid pressure [6], S denotes the saturation of water

  6. A MODIFIED BECKMAN MODEL DU SPEaROPHOTOMETER

    E-Print Network [OSTI]

    The battery charger unit 3 Modification of cell holder 4 Discussion and conclusions 5 FIGURES 1,- -Modified in the Beckman DU Spectrophotometer, respectively.) 4 5. --Wiring diagram (sennidiagrammatic) of battery charger measure- ment of critical voltages; two trickle chargers for the 6-volt "A" batteries, provided with rate

  7. Tracking and Modifying Upper-body Human Motion Data

    E-Print Network [OSTI]

    Zordan, Victor

    of humanlike characters affect the believability, aesthetic, and impact of an animation or virtual environment the dynamics of the animated character. Figure 1 shows a human actor and two animated characters tracking hisTracking and Modifying Upper-body Human Motion Data with Dynamic Simulation Victor B. Zordan

  8. Varying Speed of Light, Modified Chaplygin Gas and Accelerating Universe

    E-Print Network [OSTI]

    Anup Kumar Singha; Ujjal Debnath

    2007-01-01

    In this paper, we have considered a model of modified Chaplygin gas in VSL theory with variable gravitational constant $G$. We have shown that the evolution of the universe starts from radiation era to phantom model. The whole evolution of the universe has been shown diagramatically by using statefinder parameters.

  9. A unified approach for inversion problems in intensity-modulated radiation therapy

    E-Print Network [OSTI]

    Censor, Yair

    intensities (radiation intensity map) deliverable by all beamlets, that would result in a clinically value, however, this radiation intensity map must be implementable, in a clinically acceptable formA unified approach for inversion problems in intensity-modulated radiation therapy Yair Censor1

  10. Regulation of GHG emissions from transportation fuels: Emission quota versus emission intensity standard

    E-Print Network [OSTI]

    Rajagopal, Deepak

    2010-01-01

    mandated envision that blending gasoline (or diesel) withemission intensity as blending gasoline from crude oil with

  11. Cytogenetic status and oxidative DNA-damage induced by atorvastatin in human peripheral blood lymphocytes: Standard and Fpg-modified comet assay

    SciTech Connect (OSTI)

    Gajski, Goran Garaj-Vrhovac, Vera; Orescanin, Visnja

    2008-08-15

    To investigate the genotoxic potential of atorvastatin on human lymphocytes in vitro standard comet assay was used in the evaluation of basal DNA damage and to investigate possible oxidative DNA damage produced by reactive oxygen species (ROS) Fpg-modified version of comet assay was also conducted. In addition to these techniques the new criteria for scoring micronucleus test were applied for more complete detection of baseline damage in binuclear lymphocytes exposed to atorvastatin 80 mg/day in different time periods by virtue of measuring the frequency of micronuclei, nucleoplasmic bridges and nuclear buds. All parameters obtained with the standard comet assay and Fpg-modified comet assay were significantly higher in the treated than in control lymphocytes. The Fpg-modified comet assay showed a significantly greater tail length, tail intensity, and tail moment in all treated lymphocytes than did the standard comet assay, which suggests that oxidative stress is likely to be responsible for DNA damage. DNA damage detected by the standard comet assay indicates that some other mechanism is also involved. In addition to the comet assay, a total number of micronuclei, nucleoplasmic bridges and nuclear buds were significantly higher in the exposed than in controlled lymphocytes. Regression analyses showed a positive correlation between the results obtained by the comet (Fpg-modified and standard) and micronucleus assay. Overall, the study demonstrated that atorvastatin in its highest dose is capable of producing damage on the level of DNA molecule and cell.

  12. Cross-correlation cosmography with HI intensity mapping

    E-Print Network [OSTI]

    Pourtsidou, Alkistis; Crittenden, Robert

    2015-01-01

    The cross-correlation of a foreground density field with two different background convergence fields can be used to measure cosmographic distance ratios and constrain dark energy parameters. We investigate the possibility of performing such measurements using a combination of optical galaxy surveys and HI intensity mapping surveys, with emphasis on the performance of the planned Square Kilometre Array (SKA). Using HI intensity mapping to probe the foreground density tracer field and/or the background source fields has the advantage of excellent redshift resolution and a longer lever arm achieved by using the lensing signal from high redshift background sources. Our results show that, for our best SKA-optical configuration of surveys, a constant equation of state for dark energy can be constrained to $\\simeq 8\\%$ for a sky coverage $f_{\\rm sky}=0.5$ and assuming a $\\sigma(\\Omega_{\\rm DE})=0.03$ prior for the dark energy density parameter.

  13. Fusion neutron yield from high intensity laser-cluster interaction

    SciTech Connect (OSTI)

    Davis, J.; Petrov, G.M.; Velikovich, A.L. [Naval Research Laboratory, Plasma Physics Division, 4555 Overlook Avenue SW, Washington, DC 20375 (United States)

    2006-06-15

    The fusion neutron yield from a compact neutron source is studied. Laser-irradiated deuterium clusters serve as a precursor of high-energy deuterium ions, which react with the walls of a fusion reaction chamber and produce copious amounts of neutrons in fusion reactions. The explosion of deuterium clusters with initial radius of 50-200 A irradiated by a subpicosecond laser with intensity of 10{sup 16} W/cm{sup 2} is examined theoretically. We studied the conversion efficiency of laser energy to ion kinetic energy, the mean and maximum ion kinetic energy, and ion energy distribution function by a molecular dynamics model. A yield of {approx}10{sup 5}-10{sup 6} neutrons/J is obtainable for a peak laser intensity of 10{sup 16}-10{sup 17} W/cm{sup 2} and clusters with an initial radius of 200-400 A.

  14. Dynamic characteristic of intense short microwave propagation in an atmosphere

    SciTech Connect (OSTI)

    Yee, J.H.; Alvarez, R.A.; Mayhall, D.J.; Madsen, N.K.; Cabayan, H.S.

    1983-07-01

    The dynamic behavior of an intense microwave pulse which propagates through the atmosphere will be presented. Our theoretical results are obtained by solving Maxwell's equations, together with the electron fluid equations. Our calculations show that although large portions of the initial energy are absorbed by the electrons that are created through the avalanche process, a significant amount of energy is still able to reach the earth's surface. The amount of energy that reaches the earth's surface as a function of initial energy and wave shape after having propagated through 100 km in the atmosphere are investigated. Results for the air breakdown threshold intensity as a function of the pressure for different pulse widths and different frequencies will also be presented. In addition, we will present a comparison between the theoretical and the experimental results for the pulse shape of a short microwave pulse after it has traveled through a rectangular wave guide which contains a section of air. 23 references, 9 figures.

  15. Relativistic effects in the interaction of high intensity ultra-short laser pulse with collisional underdense plasma

    SciTech Connect (OSTI)

    Abedi, Samira [Physics Department, North Tehran Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of); Dorranian, Davoud [Laser Lab., Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of); Abari, Mehdi Etehadi [Physics Department, Science Faculty, Shahid Beheshti University, G.C., Evin, Tehran 19839 (Iran, Islamic Republic of); Shokri, Babak [Physics Department, Science Faculty, Shahid Beheshti University, G.C., Evin, Tehran 19839 (Iran, Islamic Republic of); Laser-Plasma Research Institute, Shahid Beheshti University, G.C., Evin, Tehran 19839 (Iran, Islamic Republic of)

    2011-09-15

    In this paper, the effect of weakly relativistic ponderomotive force in the interaction of intense laser pulse with nonisothermal, underdense, collisional plasma is studied. Ponderomotive force modifies the electron density and temperature distribution. By considering the weakly relativistic effect and ohmic heating of plasma electrons, the nonlinear dielectric permittivity of plasma medium is obtained and the equation of electromagnetic wave propagation in plasma is solved. It is shown that with considering the ohmic heating of electrons and collisions, the effect of ponderomotive force in weakly relativistic regime leads to steepening the electron density profile and increases the temperature of plasma electrons noticeably. Bunches of electrons in plasma become narrower. By increasing the laser pulse strength, the wavelength of density oscillations decreases. In this regime of laser-plasma interaction, electron temperature increases sharply by increasing the intensity of laser pulse. The amplitude of electric and magnetic fields increases by increasing the laser pulse energy while their wavelength decreases and they lost their sinusoidal form.

  16. Device for imaging scenes with very large ranges of intensity

    DOE Patents [OSTI]

    Deason, Vance Albert (Idaho Falls, ID)

    2011-11-15

    A device for imaging scenes with a very large range of intensity having a pair of polarizers, a primary lens, an attenuating mask, and an imaging device optically connected along an optical axis. Preferably, a secondary lens, positioned between the attenuating mask and the imaging device is used to focus light on the imaging device. The angle between the first polarization direction and the second polarization direction is adjustable.

  17. CHALLENGES IN DATA INTENSIVE ANALYSIS AT SCIENTIFIC EXPERIMENTAL USER FACILITIES

    SciTech Connect (OSTI)

    Kleese van Dam, Kerstin; Li, Dongsheng; Miller, Stephen D.; Cobb, John W.; Green, Mark L.; Ruby, Catherine L.

    2011-12-31

    This chapter will discuss the critical data intensive analysis and visualiza-tion challenges faced by the experimental science community at large scale and laboratory based facilities. The chapter will further highlight initial solutions under development through community efforts and lay out perspectives for the future, such as the potential of more closely linked experimental and computational science approaches, methods to achieve real time analysis capabilities and the challenges and opportunities of data integration across experimental scales, levels of theory and varying techniques.

  18. A measurement of the relative intensities of some vibronic bands

    E-Print Network [OSTI]

    Loyd, Coleman Monroe

    1955-01-01

    ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ . 1 II ~ EXPERIMENTAL ~ III ~ PROCEDURE FOR INTENSITI NEASUREHENTS . IV. EXPERINENTAL RESULTS FOR CHLORINE DIOXIDE ~ ~ ~ ~ 5 14 ~ ~ ~ ~ ~ 19 V. EXPERIHENTAL RESULTS FOR SULPHUR DIOXIDE. . . . 26 VI. CONCLUSIONS...INE DIOXIDE APPARATUS ~ . o . . . ~ 9 4. TOP VIEW OF CH1 CRINE DIOXIDE APPARATUS . 5 ~ CHLORINE DIOXIDE ABSORPTION SPECTROGRAM WITH CAI IBRATION BLANKS ~ ~ ~ e ~ ~ e ~ ~ ~ 6, CHLORINE DIOXIDE DECONPOSITION IiN PROGRESS 10 . 11 7. H AND D CURVE FOil...

  19. Intensive neutrino source on the base of lithium converter

    E-Print Network [OSTI]

    V. I. Lyashuk; Yu. S Lutostansky

    2015-04-13

    An intensive antineutrino source with a hard spectrum (with energy up to 13 MeV, average energy 6.5 MeV) can be realized on the base of beta-decay of short living isotope 8Li (0.84 s). The 8Li isotope (generated in activation of 7Li isotope) is a prime perspective antineutrino source owing to the hard antineutrino spectrum and square dependence of cross section on the energy. Up today nuclear reactors are the most intensive neutrino sources. Antineutrino reactor spectra have large uncertainties in the summary antineutrino spectrum at energy E>6 MeV. Use of 8Li isotope allows to decrease sharply the uncertainties or to exclude it completely. An intensive neutron fluxes are requested for rapid generation of 8Li isotope. The installations on the base of nuclear reactors can be an alternative for nuclear reactors as traditional neutron sources. It is possible creation of neutrino sources another in principle: on the base of tandem of accelerators, neutron generating targets and lithium converter. An intensive neutron flux (i.e., powerful neutron source) is requested for realization of considered neutrino sources (neutrino factories). Different realizations of lithium antineutrino sources (lithium converter on the base of high purified 7Li isotope) are discussed: static regime (i.e., without transport of 8Li isotope to the neutrino detector); dynamic regime (transport of 8Li isotope to the remote detector in a closed cycle); an operation of lithium converter in tandem of accelerator with a neutron-producing target on the base of tungsten, lead or bismuth. Different chemical compounds of lithium (as the substance of the converter) are considered. Heavy water solution of LiOD is proposed as a serious alternative to high-pure 7Li in a metallic state.

  20. Energy Intensity Indicators: Methodology Downloads | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015 Infographic courtesyEducation Data JamDepartment2 AEnergy Intensity

  1. High-intensity positron microprobe at Jefferson Lab

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

    Golge, Serkan; Vlahovic, Branislav; Wojtsekhowski, Bogdan B.

    2014-06-19

    We present a conceptual design for a novel continuous wave electron-linac based high-intensity slow-positron production source with a projected intensity on the order of 1010 e+/s. Reaching this intensity in our design relies on the transport of positrons (T+ below 600 keV) from the electron-positron pair production converter target to a low-radiation and low-temperature area for moderation in a high-efficiency cryogenic rare gas moderator, solid Ne. The performance of the integrated beamline has been verified through computational studies. The computational results include Monte Carlo calculations of the optimized electron/positron beam energies, converter target thickness, synchronized raster system, transport of themorebeam from the converter target to the moderator, extraction of the beam from the channel, and moderation efficiency calculations. For the extraction of positrons from the magnetic channel a magnetic field terminator plug prototype has been built and experimental data on the effectiveness of this prototype are presented. The dissipation of the heat away from the converter target and radiation protection measures are also discussed.less

  2. High-intensity positron microprobe at Jefferson Lab

    SciTech Connect (OSTI)

    Golge, Serkan; Vlahovic, Branislav; Wojtsekhowski, Bogdan B.

    2014-06-19

    We present a conceptual design for a novel continuous wave electron-linac based high-intensity slow-positron production source with a projected intensity on the order of 1010 e+/s. Reaching this intensity in our design relies on the transport of positrons (T+ below 600 keV) from the electron-positron pair production converter target to a low-radiation and low-temperature area for moderation in a high-efficiency cryogenic rare gas moderator, solid Ne. The performance of the integrated beamline has been verified through computational studies. The computational results include Monte Carlo calculations of the optimized electron/positron beam energies, converter target thickness, synchronized raster system, transport of the beam from the converter target to the moderator, extraction of the beam from the channel, and moderation efficiency calculations. For the extraction of positrons from the magnetic channel a magnetic field terminator plug prototype has been built and experimental data on the effectiveness of this prototype are presented. The dissipation of the heat away from the converter target and radiation protection measures are also discussed.

  3. Effects of interplanetary shock inclinations on auroral power intensity

    E-Print Network [OSTI]

    Oliveira, D M; Tsurutani, B T; Gjerloev, J W

    2015-01-01

    We derive fast forward interplanetary (IP) shock speeds and impact angles to study the geoeffectivness of 461 IP shocks that occurred from January 1995 to December 2013 using ACE and WIND spacecraft data. The geomagnetic activity is inferred from the SuperMAG project data. SuperMAG is a large chain which employs more than 300 ground stations to compute enhanced versions of the traditional geomagnetic indices. The SuperMAG auroral electroject SME index, an enhanced version of the traditional AE index, is used as an auroral power (AP) indicator. AP intensity jumps triggered by shock impacts are correlated with both shock speed and impact angle. It is found that high AP intensity events typically occur when high speed IP shocks impact the Earths magnetosphere with the shock normal almost parallel to the Sun-Earth line. This result suggests that symmetric and strong magnetospheric compression leads to favorable conditions for intense auroral power release, as shown previously by simulations and observations. Some...

  4. High-intensity positron microprobe at Jefferson Lab

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

    Golge, Serkan [North Carolina Central Univ., Durham, NC (United States); Vlahovic, Branislav [North Carolina Central Univ., Durham, NC (United States); Wojtsekhowski, Bogdan B. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2014-06-21

    We present a conceptual design for a novel continuous wave electron-linac based high-intensity slow-positron production source with a projected intensity on the order of 1010 e+/s. Reaching this intensity in our design relies on the transport of positrons (T+ below 600 keV) from the electron-positron pair production converter target to a low-radiation and low-temperature area for moderation in a high-efficiency cryogenic rare gas moderator, solid Ne. The performance of the integrated beamline has been verified through computational studies. The computational results include Monte Carlo calculations of the optimized electron/positron beam energies, converter target thickness, synchronized raster system, transport of the beam from the converter target to the moderator, extraction of the beam from the channel, and moderation efficiency calculations. For the extraction of positrons from the magnetic channel a magnetic field terminator plug prototype has been built and experimental data on the effectiveness of this prototype are presented. The dissipation of the heat away from the converter target and radiation protection measures are also discussed.

  5. Ground motion modeling of the 1906 San Francisco earthquake II: Ground motion estimates for the 1906 earthquake and scenario events

    SciTech Connect (OSTI)

    Aagaard, B; Brocher, T; Dreger, D; Frankel, A; Graves, R; Harmsen, S; Hartzell, S; Larsen, S; McCandless, K; Nilsson, S; Petersson, N A; Rodgers, A; Sjogreen, B; Tkalcic, H; Zoback, M L

    2007-02-09

    We estimate the ground motions produced by the 1906 San Francisco earthquake making use of the recently developed Song et al. (2008) source model that combines the available geodetic and seismic observations and recently constructed 3D geologic and seismic velocity models. Our estimates of the ground motions for the 1906 earthquake are consistent across five ground-motion modeling groups employing different wave propagation codes and simulation domains. The simulations successfully reproduce the main features of the Boatwright and Bundock (2005) ShakeMap, but tend to over predict the intensity of shaking by 0.1-0.5 modified Mercalli intensity (MMI) units. Velocity waveforms at sites throughout the San Francisco Bay Area exhibit characteristics consistent with rupture directivity, local geologic conditions (e.g., sedimentary basins), and the large size of the event (e.g., durations of strong shaking lasting tens of seconds). We also compute ground motions for seven hypothetical scenarios rupturing the same extent of the northern San Andreas fault, considering three additional hypocenters and an additional, random distribution of slip. Rupture directivity exerts the strongest influence on the variations in shaking, although sedimentary basins do consistently contribute to the response in some locations, such as Santa Rosa, Livermore, and San Jose. These scenarios suggest that future large earthquakes on the northern San Andreas fault may subject the current San Francisco Bay urban area to stronger shaking than a repeat of the 1906 earthquake. Ruptures propagating southward towards San Francisco appear to expose more of the urban area to a given intensity level than do ruptures propagating northward.

  6. Superbounce and Loop Quantum Cosmology Ekpyrosis from Modified Gravity

    E-Print Network [OSTI]

    V. K. Oikonomou

    2015-04-07

    As is known, in modified cosmological theories of gravity many of the cosmologies which could not be generated by standard Einstein gravity, can be consistently described by $F(R)$ theories. Using known reconstruction techniques, we investigate which $F(R)$ theories can lead to a Hubble parameter describing two types of cosmological bounces, the superbounce model, related to supergravity and non-supersymmetric models of contracting ekpyrosis and also the Loop Quantum Cosmology modified ekpyrotic model. Since our method is an approximate method, we investigate the problem at large and small curvatures. As we evince, both models yield power law reconstructed $F(R)$ gravities, with the most interesting new feature being that both lead to accelerating cosmologies, in the large curvature approximation. The mathematical properties of the some Friedmann-Robertson-Walker spacetimes $M$, that describe superbounce-like cosmologies are also pointed out, with regards to the group of curvature collineations $CC(M)$.

  7. The Modified Weighted Slab Technique: Models and Results

    E-Print Network [OSTI]

    Frank C. Jones; Andrew Lukasiak; Vladimir Ptuskin; William Webber

    2000-07-19

    In an attempt to understand the source and propagation of galactic cosmic rays we have employed the Modified Weighted Slab technique along with recent values of the relevant cross sections to compute primary to secondary ratios including B/C and Sub-Fe/Fe for different galactic propagation models. The models that we have considered are the disk-halo diffusion model, the dynamical halo wind model, the turbulent diffusion model and a model with minimal reacceleration. The modified weighted slab technique will be briefly discussed and a more detailed description of the models will be given. We will also discuss the impact that the various models have on the problem of anisotropy at high energy and discuss what properties of a particular model bear on this issue.

  8. Regular and Chaotic Behaviors of Modified Rayleigh Duffing oscillator

    E-Print Network [OSTI]

    C. H. Miwadinou; A. V. Monwanou; C. Ainamon; J. B. Chabi Orou

    2014-03-26

    The regular and chaotic behavior of modified Rayleigh-Duffing oscillator is studied. We consider in this paper the dynamics of Modified Rayleigh Duffing oscillator. The harmonic balance method are used to find the amplitudes of the oscillatory states, and analyze. The influence of system parameters are clearly found on the bifurcations in the response of this system is investigated. It is found also hysteresis and jump phenomenon are appered or desappered when certain parameters incrases or descrases. Various bifurcation structures, the variation of the Lyapunov exponent are obtained, using numerical simulations of the equations of motion. Various basin attraction are used to confirm the predictions of bifurcation structures and its corresponds Lyapunov exponent.

  9. A Modified Equation for Neural Conductance and Resonance

    E-Print Network [OSTI]

    M. Robert Showalter

    1999-05-06

    A modified equation, the S-K equation, fits data that the current neural conduction equation, the K-R equation, does not. The S-K equation is a modified Heaviside equation, based on a new interpretation of cross terms. Elements of neural anatomy and function are reviewed to put the S-K equation into context. The fit between S-K and resonance-like neural data is then shown. Appendix 1: Derivation of crossterms that represent combinations of physical laws for a line conductor of finite length. Appendix 2: Evaluation of crossterms that represent combinations of physical laws according to consistency arguments. Appendix 3: Some background on resonance. Appendix 4: Web access to some brain modeling, correspondence with NATURE, and discussion of the work in George Johnson's New York Times forums.

  10. Crystallization of polyethylene by modified weighted density approximation(MWDA)

    E-Print Network [OSTI]

    Razeghizadeh, Alireza; Lavafpour, Farhad

    2015-01-01

    In this article, we use the modified weighted density approximation to study the crystallization of polyethylene. We also use a direct correlation function of polyethylene based on RISM theory. The free energy of a polyethylene is calculated using density functional theory. The crystallization and solid and liquid density are calculated and finally compared with the prism simulation and experimental results. That shown the result obtained by MWDA is in better agreement, compared with the experimental result than the prism.

  11. Crystallization of polyethylene by modified weighted density approximation(MWDA)

    E-Print Network [OSTI]

    Alireza Razeghizadeh; Vahdat Rafee; Farhad Lavafpour

    2015-02-07

    In this article, we use the modified weighted density approximation to study the crystallization of polyethylene. We also use a direct correlation function of polyethylene based on RISM theory. The free energy of a polyethylene is calculated using density functional theory. The crystallization and solid and liquid density are calculated and finally compared with the prism simulation and experimental results. That shown the result obtained by MWDA is in better agreement, compared with the experimental result than the prism.

  12. A modified method for barium titanate nanoparticles synthesis

    SciTech Connect (OSTI)

    Ashiri, R., E-mail: ro_ashiri@iaud.ac.ir [Department of Materials Science and Engineering, Dezful Branch, Islamic Azad University, P.O. Box 313, Dezful (Iran, Islamic Republic of); Nemati, Ali [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of)] [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of); Sasani Ghamsari, M. [Solid State Lasers Research Group, Laser and Optics Research School, NSTRI, P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of)] [Solid State Lasers Research Group, Laser and Optics Research School, NSTRI, P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of); Sanjabi, S. [Nanomaterials Group, Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of)] [Nanomaterials Group, Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of); Aalipour, M. [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of)] [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of)

    2011-12-15

    Graphical abstract: TEM micrograph of BaTiO{sub 3} powders synthesized at 800 Degree-Sign C for 1 h and SAED pattern (inset) of BaTiO{sub 3} powders. In this research, a modified, cost efficient and quick sol-gel procedure was used for preparation of BaTiO{sub 3} nanoparticles. Highlights: Black-Right-Pointing-Pointer A modified process was used for preparation. Black-Right-Pointing-Pointer The modified process led to preparation of finer BaTiO{sub 3} nanoparticles in shorter period of time and lower temperature contrary to previous researches. Black-Right-Pointing-Pointer The proposed procedure seems to be more preferable for mass production. -- Abstract: In this research, a modified, cost effective sol-gel procedure applied to synthesize BaTiO{sub 3} nanoparticles. XRD and electron microscopy (SEM and TEM) applied for microstructural characterization of powders. The obtained results showed that the type of precursors, their ratio and the hydrolysis conditions had a great effect on time, temperature and therefore the costs of the synthesis process. By selection, utilization of optimized precursor's type, hydrolysis conditions, fine cubic BaTiO{sub 3} nanoparticles were synthesized at low temperature and in short time span (1 h calcination at 800 Degree-Sign C). The proposed procedure seems to be more preferable for mass production. The result indicated that the polymorphic transformation to tetragonal (ferroelectric characteristic) occurred at 900 Degree-Sign C, which might be an indication of being nanosized.

  13. Structure formation in a nonlocally modified gravity model

    SciTech Connect (OSTI)

    Park, Sohyun; Dodelson, Scott

    2013-01-01

    We study a nonlocally modified gravity model proposed by Deser and Woodard which gives an explanation for current cosmic acceleration. By deriving and solving the equations governing the evolution of the structure in the Universe, we show that this model predicts a pattern of growth that differs from standard general relativity (+dark energy) at the 10-30% level. These differences will be easily probed by the next generation of galaxy surveys, so the model should be tested shortly.

  14. The role of vector fields in modified gravity scenarios

    SciTech Connect (OSTI)

    Tasinato, Gianmassimo; Koyama, Kazuya; Khosravi, Nima E-mail: kazuya.koyama@port.ac.uk

    2013-11-01

    Gravitational vector degrees of freedom typically arise in many examples of modified gravity models. We start to systematically explore their role in these scenarios, studying the effects of coupling gravitational vector and scalar degrees of freedom. We focus on set-ups that enjoy a Galilean symmetry in the scalar sector and an Abelian gauge symmetry in the vector sector. These symmetries, together with the requirement that the equations of motion contain at most two space-time derivatives, only allow for a small number of operators in the Lagrangian for the gravitational fields. We investigate the role of gravitational vector fields for two broad classes of phenomena that characterize modified gravity scenarios. The first is self-acceleration: we analyze in general terms the behavior of vector fluctuations around self-accelerating solutions, and show that vanishing kinetic terms of vector fluctuations lead to instabilities on cosmological backgrounds. The second phenomenon is the screening of long range fifth forces by means of Vainshtein mechanism. We show that if gravitational vector fields are appropriately coupled to a spherically symmetric source, they can play an important role for defining the features of the background solution and the scale of the Vainshtein radius. Our general results can be applied to any concrete model of modified gravity, whose low-energy vector and scalar degrees of freedom satisfy the symmetry requirements that we impose.

  15. Probing hybrid modified gravity by stellar motion around Galactic Centre

    E-Print Network [OSTI]

    D. Borka; S. Capozziello; P. Jovanovi?; V. Borka Jovanovi?

    2015-04-29

    We consider possible signatures for the so called {\\it hybrid gravity} within the Galactic Central Parsec. This modified theory of gravity consists of a superposition of the metric Einstein-Hilbert Lagrangian with an $f(R)$ term constructed {\\it \\`{a} la Palatini } and can be easily reduced to an equivalent scalar-tensor theory. The present analysis is based on the S2 star orbital precession around the massive compact dark object at the Galactic Centre where the simulated orbits in hybrid modified gravity are compared with astronomical observations. These simulations result with strong constraints on the range of hybrid gravity interaction parameter $\\phi_0$ and show that its most probable value, in the case of S2 star, is around -0.0009 to -0.0002. At the same time, we are also able to obtain reliable constrains on the effective mass parameter $m_{\\phi}$ of hybrid modified gravity. Its most probable value, in the case of S2 star, is around -0.0034 to -0.0025. Furthermore, the hybrid gravity potential induces precession of S2 star orbit in the same direction as General Relativity. In previous papers, we considered other types of extended gravities, like metric power law $f(R)\\propto R^n$ gravity, inducing Yukawa and Sanders-like gravitational potentials, but it seems that hybrid gravity is the best among these models to explain different gravitational phenomena at different astronomical scales.

  16. Modified Dust and the Small Scale Crisis in CDM

    E-Print Network [OSTI]

    Fabio Capela; Sabir Ramazanov

    2015-04-29

    At large scales and for sufficiently early times, dark matter is described as a pressureless perfect fluid---dust---non-interacting with Standard Model fields. These features are captured by a simple model with two scalars: a Lagrange multiplier and another playing the role of the velocity potential. That model arises naturally in some gravitational frameworks, e.g., the mimetic dark matter scenario. We consider an extension of the model by means of higher derivative terms, such that the dust solutions are preserved at the background level, but there is a non-zero sound speed at the linear level. We associate this {\\it Modified Dust} with dark matter, and study the linear evolution of cosmological perturbations in that picture. The most prominent effect is the suppression of their power spectrum for sufficiently large cosmological momenta. This can be relevant in view of the problems that cold dark matter faces at sub-galactic scales, e.g., the missing satellites problem. At even shorter scales, however, perturbations of Modified Dust are enhanced compared to the predictions of more common particle dark matter scenarios. This is a peculiarity of their evolution in radiation dominated background. We also briefly discuss clustering of Modified Dust. We write the system of equations in the Newtonian limit, and sketch the possible mechanism which could prevent the appearance of caustic singularities. The same mechanism may be relevant in light of the core-cusp problem.

  17. Field assessment of an aluminum intensive passenger car

    SciTech Connect (OSTI)

    Cuenca, R.M.

    1994-12-31

    Ford Motor Co. has made a small batch of ``aluminum intensive vehicles`` (AIV), consisting of mid-size cars (Taurus/Sable) with all-aluminum bodies. The first twenty vehicles were made for internal evaluation at Ford, but the second batch of twenty has been placed on the hands of selected independent users, primarily automotive suppliers, for long term field assessment. The mass reduction achieved in the body of an AIV is shown, and compared with an equivalent standard steel body. Argonne obtained one of these vehicles last October; this is an assessment of the fuel consumption and other operational characteristics of this type of car to date.

  18. Rider Energy Expenditure during High Intensity Horse Activity

    E-Print Network [OSTI]

    O'Reilly, Colleen L

    2015-04-29

    (DDR) to determine if playing DDR for 30 min a day could meet minimum exercise requirements. Experienced DDR players as well as inexperienced DDR players were observed to determine if they could meet energy expenditure requirements. This study..., in contradiction with the Nintendo Wii study found that experienced DDR players exhibited exercise of a moderate intensity with mean HR of 161.2 beats per min (bpm) and mean VO2 of 25.2mLkg -1min-1 and expended more than 150 kcal in the 30 min exercise which...

  19. Assessing Internet energy intensity: A review of methods and results

    SciTech Connect (OSTI)

    Coroama, Vlad C.; Hilty, Lorenz M.; Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstr. 5, 9014 St. Gallen; Centre for Sustainable Communications, KTH Royal Institute of Technology, Lindstedtsvgen 5, 100 44 Stockholm

    2014-02-15

    Assessing the average energy intensity of Internet transmissions is a complex task that has been a controversial subject of discussion. Estimates published over the last decade diverge by up to four orders of magnitude from 0.0064 kilowatt-hours per gigabyte (kWh/GB) to 136 kWh/GB. This article presents a review of the methodological approaches used so far in such assessments: i) topdown analyses based on estimates of the overall Internet energy consumption and the overall Internet traffic, whereby average energy intensity is calculated by dividing energy by traffic for a given period of time, ii) model-based approaches that model all components needed to sustain an amount of Internet traffic, and iii) bottomup approaches based on case studies and generalization of the results. Our analysis of the existing studies shows that the large spread of results is mainly caused by two factors: a) the year of reference of the analysis, which has significant influence due to efficiency gains in electronic equipment, and b) whether end devices such as personal computers or servers are included within the system boundary or not. For an overall assessment of the energy needed to perform a specific task involving the Internet, it is necessary to account for the types of end devices needed for the task, while the energy needed for data transmission can be added based on a generic estimate of Internet energy intensity for a given year. Separating the Internet as a data transmission system from the end devices leads to more accurate models and to results that are more informative for decision makers, because end devices and the networking equipment of the Internet usually belong to different spheres of control. -- Highlights: Assessments of the energy intensity of the Internet differ by a factor of 20,000. We review topdown, model-based, and bottomup estimates from literature. Main divergence factors are the year studied and the inclusion of end devices. We argue against extending the Internet system boundary beyond data transmission. Decision-makers need data that differentiates between end devices and transmission.

  20. Fermilab | Science at Fermilab | Experiments & Projects | Intensity

    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 likeUniverse (Journal Article) | SciTechSubmitted More OftenFrontier Intensity

  1. Optical Fiber High Temperature Sensor Instrumentation for Energy Intensive Industries

    SciTech Connect (OSTI)

    Cooper, Kristie L.; Wang, Anbo; Pickrell, Gary R.

    2006-11-14

    This report summarizes technical progress during the program Optical Fiber High Temperature Sensor Instrumentation for Energy Intensive Industries, performed by the Center for Photonics Technology of the Bradley Department of Electrical and Computer Engineering at Virginia Tech. The objective of this program was to use technology recently invented at Virginia Tech to develop and demonstrate the application of self-calibrating optical fiber temperature and pressure sensors to several key energy-intensive industries where conventional, commercially available sensors exhibit greatly abbreviated lifetimes due primarily to environmental degradation. A number of significant technologies were developed under this program, including a laser bonded silica high temperature fiber sensor with a high temperature capability up to 700C and a frequency response up to 150 kHz, the worlds smallest fiber Fabry-Perot high temperature pressure sensor (125 x 20 ?m) with 700C capability, UV-induced intrinsic Fabry-Perot interferometric sensors for distributed measurement, a single crystal sapphire fiber-based sensor with a temperature capability up to 1600C. These technologies have been well demonstrated and laboratory tested. Our work plan included conducting major field tests of these technologies at EPRI, Corning, Pratt & Whitney, and Global Energy; field validation of the technology is critical to ensuring its usefulness to U.S. industries. Unfortunately, due to budget cuts, DOE was unable to follow through with its funding commitment to support Energy Efficiency Science Initiative projects and this final phase was eliminated.

  2. Precision monitoring of relative beam intensity for Mu2e

    SciTech Connect (OSTI)

    Evans, N.J.; Kopp, S.E.; /Texas U.; Prebys, E.; /Fermilab

    2011-04-01

    For future experiments at the intensity frontier, precise and accurate knowledge of beam time structure will be critical to understanding backgrounds. The proposed Mu2e experiment will utilize {approx}200 ns (FW) bunches of 3 x 10{sup 7} protons at 8 GeV with a bunch-to-bunch period of 1695 ns. The out-of-bunch beam must be suppressed by a factor of 10{sup -10} relative to in-bunch beam and continuously monitored. I propose a Cerenkov-based particle telescope to measure secondary production from beam interactions in a several tens of microns thick foil. Correlating timing information with beam passage will allow the determination of relative beam intensity to arbitrary precision given a sufficiently long integration time. The goal is to verify out-of-bunch extinction to the level 10{sup -6} in the span of several seconds. This will allow near real-time monitoring of the initial extinction of the beam resonantly extracted from Fermilabs Debuncher before a system of AC dipoles and collimators, which will provide the final extinction. The effect on beam emittance is minimal, allowing the necessary continuous measurement. I will present the detector design and some concerns about bunch growth during the resonant extraction.

  3. The interaction of intense subpicosecond laser pulses with underdense plasmas

    SciTech Connect (OSTI)

    Coverdale, C.A.

    1995-05-11

    Laser-plasma interactions have been of interest for many years not only from a basic physics standpoint, but also for their relevance to numerous applications. Advances in laser technology in recent years have resulted in compact laser systems capable of generating (psec), 10{sup 16} W/cm{sup 2} laser pulses. These lasers have provided a new regime in which to study laser-plasma interactions, a regime characterized by L{sub plasma} {ge} 2L{sub Rayleigh} > c{tau}. The goal of this dissertation is to experimentally characterize the interaction of a short pulse, high intensity laser with an underdense plasma (n{sub o} {le} 0.05n{sub cr}). Specifically, the parametric instability known as stimulated Raman scatter (SRS) is investigated to determine its behavior when driven by a short, intense laser pulse. Both the forward Raman scatter instability and backscattered Raman instability are studied. The coupled partial differential equations which describe the growth of SRS are reviewed and solved for typical experimental laser and plasma parameters. This solution shows the growth of the waves (electron plasma and scattered light) generated via stimulated Raman scatter. The dispersion relation is also derived and solved for experimentally accessible parameters. The solution of the dispersion relation is used to predict where (in k-space) and at what frequency (in {omega}-space) the instability will grow. Both the nonrelativistic and relativistic regimes of the instability are considered.

  4. Ferroplasmons: Intense Localized Surface Plasmons in Metal-Ferromagnetic Nanoparticles

    SciTech Connect (OSTI)

    Sachan, Ritesh [University of Tennessee, Knoxville (UTK); Malasi, Abhinav [ORNL; Ge, Jingxuan [Materials Science and Engineering Department, University of Tennessee, Knoxville, TN, USA; Yadavali, Sagar P [ORNL; Gangopadhyay, Anup [Washington University, St. Louis; Krishna, Dr. Hare [Washington University, St. Louis; Garcia, Hernando [Southern Illinois University; Duscher, Gerd J M [ORNL; Kalyanaraman, Ramki [University of Tennessee, Knoxville (UTK)

    2014-01-01

    Interaction of photons with matter at length scales far below their wavelengths has given rise to many novel phenomena, including localized surface plasmon resonance (LSPR). However, LSPR with narrow bandwidth (BW) is observed only in a select few noble metals, and ferromagnets are not among them. Here, we report the discovery of LSPR in ferromagnetic Co and CoFe alloy (8% Fe) in contact with Ag in the form of bimetallic nanoparticles prepared by pulsed laser dewetting. These plasmons in metal-erromagnetic nanostructures, or ferroplasmons (FP) for short, are in the visible spectrum with comparable intensity and BW to those of the LSPRs from the Ag regions. This finding was enabled by electron energy-loss mapping across individual nanoparticles in a monochromated scanning transmission electron microscope. The appearance of the FP is likely due to plasmonic interaction between the contacting Ag and Co nanoparticles. Since there is no previous evidence for materials that simultaneously show ferromagnetism and such intense LSPRs, this discovery may lead to the design of improved plasmonic materials and applications. It also demonstrates that materials with interesting plasmonic properties can be synthesized using bimetallic nanostructures in contact with each other.

  5. DZero data-intensive computing on the Open Science Grid

    SciTech Connect (OSTI)

    Abbott, B.; /Oklahoma U.; Baranovski, A.; Diesburg, M.; Garzoglio, G.; /Fermilab; Kurca, T.; /Lyon, IPN; Mhashilkar, P.; /Fermilab

    2007-09-01

    High energy physics experiments periodically reprocess data, in order to take advantage of improved understanding of the detector and the data processing code. Between February and May 2007, the DZero experiment has reprocessed a substantial fraction of its dataset. This consists of half a billion events, corresponding to about 100 TB of data, organized in 300,000 files. The activity utilized resources from sites around the world, including a dozen sites participating to the Open Science Grid consortium (OSG). About 1,500 jobs were run every day across the OSG, consuming and producing hundreds of Gigabytes of data. Access to OSG computing and storage resources was coordinated by the SAM-Grid system. This system organized job access to a complex topology of data queues and job scheduling to clusters, using a SAM-Grid to OSG job forwarding infrastructure. For the first time in the lifetime of the experiment, a data intensive production activity was managed on a general purpose grid, such as OSG. This paper describes the implications of using OSG, where all resources are granted following an opportunistic model, the challenges of operating a data intensive activity over such large computing infrastructure, and the lessons learned throughout the project.

  6. Modified Anti-de-Sitter Metric, Light-Front Quantized QCD, and...

    Office of Scientific and Technical Information (OSTI)

    Modified Anti-de-Sitter Metric, Light-Front Quantized QCD, and Conformal Quantum Mechanics Citation Details In-Document Search Title: Modified Anti-de-Sitter Metric, Light-Front...

  7. Selective Zn2+ sensing using a modified bipyridine complex

    SciTech Connect (OSTI)

    Akula, Mahesh; El-Khoury, Patrick Z.; Nag, Amit; Bhattacharya, Anupam

    2014-06-01

    A novel fluorescent Zn2+ sensor, 4-(pyridin-2-yl)-3H-pyrrolo[2, 3-c]quinoline (PPQ), has been designed, synthesized and characterized by various spectroscopic and analytical techniques. PPQ exhibits superior detection of Zn2+ in the presence of various cations tested, including Cd2+ and Hg2+, via wavelength shifted fluorescence intensity enhancement. The emission wavelength at 500 nm, ensures probable noninterference from cellular components while performing biological applications.

  8. Effect of variable suckling intensity upon serum luteinzing hormone in brangus heifers and effect of varible suckling intensity and estrogen administration upon serum luteinizing hormone in brahman cows

    E-Print Network [OSTI]

    Forrest, Philip Kent

    1979-01-01

    EFFECT OF VARIABLE SUCKLING INTENSITY UPON SERUM LUTEINIZING HORMONE IN BRANGUS HEIFERS AND EFFECT OF VARIABLE SUCKLING INTENSITY AND ESTROGEN ADMINISTRATION UPON SERUM LUTEINIZING HORMONE IN BRAHMAN COWS A Thesis by PHILIP KENT FORREST... HORMONE IN BRANGUS HEIFERS AND EFFECT OF VARIABLE SUCKLING INTENSITY AND ESTROGEN ADMINISTRATION UPON SERUM LUTEINIZING HORMONE IN BRAHMAN COWS A Thesis by PHILIP KENT FORREST Approved as to sty1e and content by: (+M Chairman of Committee) Head...

  9. Nonlinear increase of X-ray intensities from thin foils irradiated...

    Office of Scientific and Technical Information (OSTI)

    increase of X-ray intensities from thin foils irradiated with a 200 TW femtosecond laser Citation Details In-Document Search Title: Nonlinear increase of X-ray intensities...

  10. February 11, 1997 Signal-to-Noise Ratio of Intensity Interferometry

    E-Print Network [OSTI]

    Kemner, Ken

    . INTRODUCTION The prospects for an x-ray Hanbury Brown and Twiss (HBT) intensity interferometry experiment using Hanbury Brown and Twiss #12;3 experiment with visible light,[10] in which the correlation of the intensity

  11. Detecting Hazardous Intensive Care Patient Episodes Using Real-time Mortality Models

    E-Print Network [OSTI]

    Hug, Caleb

    2009-08-26

    The modern intensive care unit (ICU) has become a complex, expensive, data-intensive environment. Caregivers maintain an overall assessment of their patients based on important observations and trends. If an advanced ...

  12. Detecting hazardous intensive care patient episodes using real-time mortality models

    E-Print Network [OSTI]

    Hug, Caleb W. (Caleb Wayne)

    2009-01-01

    The modern intensive care unit (ICU) has become a complex, expensive, data-intensive environment. Caregivers maintain an overall assessment of their patients based on important observations and trends. If an advanced ...

  13. Verifica(on of Hurricane Irene, Isaac and Sandy's Storm Track, Intensity, and Wind Radii Errors

    E-Print Network [OSTI]

    Miami, University of

    Verifica(on of Hurricane Irene, Isaac and Sandy's Storm Track, Intensity/onal Hurricane Center (NHC). Forecasts of the track have steadily improved over the past, intensity (MWND) and wind radii (WRAD) errors of Hurricane Irene (2011

  14. Optically Interconnected Data Center Architecture for Bandwidth Intensive Energy Efficient Networking

    E-Print Network [OSTI]

    Bergman, Keren

    Optically Interconnected Data Center Architecture for Bandwidth Intensive Energy Efficient will either be prohibitively costly, overly complex, or result in unsustainable energy requirements. Network of communication-intensive applications. Recent network architectures based on optical circuit switching leverage

  15. SSRS 2008 Web Reports Information Technology Systems Last Modified: July, 2012 UNCW

    E-Print Network [OSTI]

    Olszewski Jr., Edward A.

    SSRS 2008 Web Reports Information Technology Systems Last Modified: July, 2012 UNCW SQL Server REPORTS 2 #12;SSRS 2008 Web Reports Information Technology Systems Last Modified: July, 2012 UNCW Save. SSRSWEB REPORTS #12;SSRS 2008 Web Reports Information Technology Systems Last Modified: July

  16. Nanocomposite fibers and film containing polyolefin and surface-modified carbon nanotubes

    DOE Patents [OSTI]

    Chu,Benjamin (Setauket, NY); Hsiao, Benjamin S. (Setauket, NY)

    2010-01-26

    Methods for modifying carbon nanotubes with organic compounds are disclosed. The modified carbon nanotubes have enhanced compatibility with polyolefins. Nanocomposites of the organo-modified carbon nanotubes and polyolefins can be used to produce both fibers and films having enhanced mechanical and electrical properties, especially the elongation-to-break ratio and the toughness of the fibers and/or films.

  17. Strategies for the Commercialization & Deployment of GHG Intensity-Reducing Technologies & Practices

    Broader source: Energy.gov [DOE]

    This report looks at the best methods of commercializing and deploying energy technologies that reduce greenhouse gas intensity.

  18. Quantifying Regional Economic Impacts of CO2 Intensity Targets in China

    E-Print Network [OSTI]

    Zhang, Da

    2012-09-01

    To address rising energy use and CO2 emissions, Chinas leadership has enacted energy and CO2 intensity

  19. Galaxy Clustering in 3D and Modified Gravity Theories

    E-Print Network [OSTI]

    Dipak Munshi; Geraint Pratten; Patrick Valageas; Peter Coles; Philippe Brax

    2015-08-03

    We study Modified Gravity (MG) theories by modelling the redshifted matter power spectrum in a spherical Fourier-Bessel (sFB) basis. We use a fully non-linear description of the real-space matter power-spectrum and include the lowest-order redshift-space correction (Kaiser effect), taking into account some additional non-linear contributions. Ignoring relativistic corrections, which are not expected to play an important role for a shallow survey, we analyse two different modified gravity scenarios, namely the generalised Dilaton scalar-tensor theories and the $f({R})$ models in the large curvature regime. We compute the 3D power spectrum ${\\cal C}^s_{\\ell}(k_1,k_2)$ for various such MG theories with and without redshift space distortions, assuming precise knowledge of background cosmological parameters. Using an all-sky spectroscopic survey with Gaussian selection function $\\varphi(r)\\propto \\exp(-{r^2 / r^2_0})$, $r_0 = 150 \\, h^{-1} \\, {\\textrm{Mpc}}$, and number density of galaxies $\\bar {\\textrm{N}} =10^{-4}\\;{\\textrm{Mpc}}^{-3}$, we use a $\\chi^2$ analysis, and find that the lower-order $(\\ell \\leq 25)$ multipoles of ${\\cal C}^s_\\ell(k,k')$ (with radial modes restricted to $k 25$ modes can further reduce the error bars and thus in principle make cosmological gravity constraints competitive with solar system tests. However this will require an accurate modelling of non-linear redshift space distortions. Using a tomographic $\\beta(a)$-$m(a)$ parameterization we also derive constraints on specific parameters describing the Dilaton models of modified gravity.

  20. On the vacuum fluctuations, Pioneer Anomaly and Modified Newtonian Dynamics

    E-Print Network [OSTI]

    Dragan Slavkov Hajdukovic

    2011-02-08

    We argue that the so-called "Pioneer Anomaly" is related to the quantum vacuum fluctuations. Our approach is based on the hypothesis of the gravitational repulsion between matter and antimatter, what allows considering, the virtual particle-antiparticle pairs in the physical vacuum, as gravitational dipoles. Our simplified calculations indicate that the anomalous deceleration of the Pioneer spacecrafts could be a consequence of the vacuum polarization in the gravitational field of the Sun. At the large distances, the vacuum polarization by baryonic matter could mimic dark matter what opens possibility that dark matter do not exist, as advocated by the Modified Newtonian Dynamics (MOND).

  1. Cosmological Exact Solutions in Some Modified Gravitational Theories

    E-Print Network [OSTI]

    Bisabr, Yousef

    2015-01-01

    In a homogenous and isotropic cosmology, we introduce general exact solutions for some modified gravity models. In particular, we introduce exact solutions for power-law $f(R)$ gravity and Brans-Dicke theory in Einstein and Jordan conformal frames. In the Brans-Dicke case, the solutions are presented for both single and double exponential potentials in Einstein frame which correspond to power-law potentials in Jordan frame. Our analysis for extracting general exact solutions can also be generalized to those scalar-tensor theories in which the scalar field has an exponential coupling to Ricci scalar.

  2. Time machines and traversable wormholes in modified theories of gravity

    E-Print Network [OSTI]

    Francisco S. N. Lobo

    2012-12-05

    We review recent work on wormhole geometries in the context of modified theories of gravity, in particular, in f(R) gravity and with a nonminimal curvature-matter coupling, and in the recently proposed hybrid metric-Palatini theory. In principle, the normal matter threading the throat can be shown to satisfy the energy conditions and it is the higher order curvatures terms that sustain these wormhole geometries. We also briefly review the conversion of wormholes into time-machines, explore several of the time travel paradoxes and possible remedies to these intriguing side-effects in wormhole physics.

  3. Modified GBIG Scenario as a Successful Alternative for Dark Energy

    E-Print Network [OSTI]

    Nozari, Kourosh

    2009-01-01

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  4. Modified definition of group velocity and electromagnetic energy conservation equation

    E-Print Network [OSTI]

    Changbiao Wang

    2015-05-11

    The classical definition of group velocity has two flaws: (a) the group velocity can be greater than the phase velocity and break Fermat's principle in a non-dispersive, lossless, non-conducting, anisotropic uniform medium; (b) the definition is not consistent with the principle of relativity for a plane wave in a moving isotropic uniform medium. To remove the flaws, a modified definition is proposed. A criterion is set up to identify the justification of group velocity definition. A "superluminal power flow" is constructed to show that the electromagnetic energy conservation equation cannot uniquely define the power flow if the principle of Fermat is not taken into account.

  5. Modified gaseous atmospheres for storage of beef, lamb and pork

    E-Print Network [OSTI]

    Davis, George Theodore

    1979-01-01

    MODIFIED G'~. ' . . OUS ATMOSPHERI. S FOR STORAGE OI REEF, I. PMB AND PORK A Thesis by GEORGE THEODORE DAVIS I II Submitted to thc. graduate college of Texas AsM University in partial fulfillment of the rec, u. 'rement fox the degree... of MASTER OF SCIENCE December ' 1979 Major Subject: Animal "" ience MODIF1ED GASEOUS ATMOSPHERES FOR STORAGE OF BEEFi LAMB AND PORK A Thesis GEORGE THEODORE DAVIS III Approved as to style and content. by (Co Chairman of ommittee) (Member) (Member...

  6. Hydrogen peroxide modified sodium titanates with improved sorption capabilities

    DOE Patents [OSTI]

    Nyman, May D. (Albuquerque, NM); Hobbs, David T. (North Augusta, SC)

    2009-02-24

    The sorption capabilities (e.g., kinetics, selectivity, capacity) of the baseline monosodium titanate (MST) sorbent material currently being used to sequester Sr-90 and alpha-emitting radioisotopes at the Savannah River Site are significantly improved when treated with hydrogen peroxide; either during the original synthesis of MST, or, as a post-treatment step after the MST has been synthesized. It is expected that these peroxide-modified MST sorbent materials will have significantly improved sorption capabilities for non-radioactive cations found in industrial processes and waste streams.

  7. Cosmological Exact Solutions in Some Modified Gravitational Theories

    E-Print Network [OSTI]

    Yousef Bisabr

    2015-05-04

    In a homogenous and isotropic cosmology, we introduce general exact solutions for some modified gravity models. In particular, we introduce exact solutions for power-law $f(R)$ gravity and Brans-Dicke theory in Einstein and Jordan conformal frames. In the Brans-Dicke case, the solutions are presented for both single and double exponential potentials in Einstein frame which correspond to power-law potentials in Jordan frame. Our analysis for extracting general exact solutions can also be generalized to those scalar-tensor theories in which the scalar field has an exponential coupling to Ricci scalar.

  8. The modified Klein Gordon equation for neolithic population migration

    E-Print Network [OSTI]

    M. Pelc; J. Marciak-Kozlowska; M. Kozlowski

    2007-03-11

    In this paper the model for the neolithic migration in Europe is developed. The new migration equation, the modified Klein Gordon equation is formulated and solved. It is shown that the migration process can be described as the hyperbolic diffusion with constant speed. In comparison to the existing models based on the generalization of the Fisher approach the present model describes the migration as the transport process with memory and offers the possibility to recover the initial state of migration which is the wave motion with finite velocity.

  9. Modified SIMD architecture suitable for single-chip implementation

    E-Print Network [OSTI]

    Junichiro Makino

    2005-09-11

    We describe a modified SIMD architecture suitable for single-chip integration of a large number of processing elements, such as 1,000 or more. Important differences from traditional SIMD designs are: a) The size of the memory per processing elements is kept small. b) The processors are organized into groups, each with a small buffer memory. Reduction operation over the groups is done in hardware. The first change allows us to integrate a very large number of processing elements into a single chip. The second change allows us to achieve a close-to-peak performance for many scientific applications like particle-based simulations and dense-matrix operations.

  10. Modified GBIG Scenario as an Alternative for Dark Energy

    E-Print Network [OSTI]

    Kourosh Nozari; Narges Rashidi

    2009-09-02

    We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore cosmological dynamics of this model and we show that this scenario is a successful alternative for dark energy proposal. Interestingly, it realizes the phantom-like behavior without introduction of any phantom field on the brane and the effective equation of state parameter crosses the cosmological constant line naturally in the same way as observational data suggest.

  11. Dielectric behavior of barium modified strontium bismuth titanate ceramic

    SciTech Connect (OSTI)

    Nayak, P.; Badapanda, T.; Anwar, S.; Panigrahi, S.

    2014-04-24

    Barium Modified Strontium Bismuth Titanate(SBT) ceramic with general formula Sr1?xBaxBi4Ti4O15 is prepared by solid state reaction route. The structural analysis of the ceramics was done by X-ray diffraction technique. The X-ray patterns show that all the compositions are of single phase with orthorhombic structure. The temperature dependent dielectric behavior shows that the transition temperature decreases with Ba content but the maximum dielectric constant increases. The decreases of the transition with increase in Ba{sup 2+} ion, may be due to the decrease of orthorhombicity by the incorporation of Ba{sup 2+} ion in SBT lattice.

  12. Computing model independent perturbations in dark energy and modified gravity

    SciTech Connect (OSTI)

    Battye, Richard A. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL (United Kingdom); Pearson, Jonathan A., E-mail: richard.battye@manchester.ac.uk, E-mail: jonathan.pearson@durham.ac.uk [Department of Mathematical Sciences, Durham University, South Road, Durham, DH1 3LE (United Kingdom)

    2014-03-01

    We present a methodology for computing model independent perturbations in dark energy and modified gravity. This is done from the Lagrangian for perturbations, by showing how field content, symmetries, and physical principles are often sufficient ingredients for closing the set of perturbed fluid equations. The fluid equations close once ''equations of state for perturbations'' are identified: these are linear combinations of fluid and metric perturbations which construct gauge invariant entropy and anisotropic stress perturbations for broad classes of theories. Our main results are the proof of the equation of state for perturbations presented in a previous paper, and the development of the required calculational tools.

  13. Modified polynomial function model for reversed-field pinches

    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 wouldMass map shines light on77 PAGEMission MissionModelingModified polynomial function model

  14. Sandia Energy - Sandia Modifies Delft3D Turbine Model

    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 RoomPreservation of Fe(II)Geothermal EnergyRenewable EnergyWAvesLawrenceImpacts ToolMapsModifies

  15. Energy Policy 30 (2002) 151163 Aggregating physical intensity indicators: results of applying the

    E-Print Network [OSTI]

    2002-01-01

    Energy Policy 30 (2002) 151163 Aggregating physical intensity indicators: results of applying and interpretation of energy intensity indicators are a continuing source of debate in the field of energy policy the performance of energy-related policies. Energy intensity indicators continue to be used for monitoring

  16. An Empirical Analysis of Energy Intensity and Its Determinants at the State Level

    E-Print Network [OSTI]

    1 An Empirical Analysis of Energy Intensity and Its Determinants at the State Level Gilbert E. Metcalf* Aggregate energy intensity in the United States has been declining steadily since the mid-1970s and the first oil shock. Energy intensity can be reduced by improving efficiency in the use of energy

  17. Accessing defect dynamics using intense, nanosecond pulsed ion beams

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

    Persaud, A.; Barnard, J. J.; Guo, H.; Hosemann, P.; Lidia, S.; Minor, A. M.; Seidl, P. A.; Schenkel, T.

    2015-06-18

    Gaining in-situ access to relaxation dynamics of radiation induced defects will lead to a better understanding of materials and is important for the verification of theoretical models and simulations. We show preliminary results from experiments at the new Neutralized Drift Compression Experiment (NDCX-II) at Lawrence Berkeley National Laboratory that will enable in-situ access to defect dynamics through pump-probe experiments. Here, the unique capabilities of the NDCX-II accelerator to generate intense, nanosecond pulsed ion beams are utilized. Preliminary data of channeling experiments using lithium and potassium ions and silicon membranes are shown. We compare these data to simulation results using CrystalmoreTrim. Furthermore, we discuss the improvements to the accelerator to higher performance levels and the new diagnostics tools that are being incorporated.less

  18. Can we detect "Unruh radiation" in the high intensity lasers?

    E-Print Network [OSTI]

    Satoshi Iso; Yasuhiro Yamamoto; Sen Zhang

    2011-02-23

    An accelerated particle sees the Minkowski vacuum as thermally excited, which is called the Unruh effect. Due to an interaction with the thermal bath, the particle moves stochastically like the Brownian motion in a heat bath. It has been discussed that the accelerated charged particle may emit extra radiation (the Unruh radiation) besides the Larmor radiation, and experiments are under planning to detect such radiation by using ultrahigh intensity lasers. There are, however, counterarguments that the radiation is canceled by an interference effect between the vacuum fluctuation and the radiation from the fluctuating motion. In this reports, we review our recent analysis on the issue of the Unruh radiation. In this report, we particularly consider the thermalization of an accelerated particle in the scalar QED, and derive the relaxation time of the thermalization.

  19. Accessing defect dynamics using intense, nanosecond pulsed ion beams

    SciTech Connect (OSTI)

    Persaud, A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Barnard, J. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Guo, H. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Hosemann, P. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Lidia, S. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Minor, A. M. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States); Seidl, P. A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Schenkel, T. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2015-01-01

    Gaining in-situ access to relaxation dynamics of radiation induced defects will lead to a better understanding of materials and is important for the verification of theoretical models and simulations. We show preliminary results from experiments at the new Neutralized Drift Compression Experiment (NDCX-II) at Lawrence Berkeley National Laboratory that will enable in-situ access to defect dynamics through pump-probe experiments. Here, the unique capabilities of the NDCX-II accelerator to generate intense, nanosecond pulsed ion beams are utilized. Preliminary data of channeling experiments using lithium and potassium ions and silicon membranes are shown. We compare these data to simulation results using Crystal Trim. Furthermore, we discuss the improvements to the accelerator to higher performance levels and the new diagnostics tools that are being incorporated.

  20. Overview of High Intensity Linac Programs in Europe

    E-Print Network [OSTI]

    Garoby, R

    2004-01-01

    Recent years have seen a boost in the support by the European Union (EU) of accelerator research in Europe. Provided they coordinate their efforts and define common goals and strategies, laboratories and institutions from the member states can receive a financial support reaching 50% of the total project cost. In the field of High Intensity Linacs, the EU has already supported the EURISOL initiative for nuclear physics, which this year is applying for funding of a Design Study, and the development of linacs for Waste Transmutation. More recently, an initiative for high-energy physics has been approved, which includes a programme for the development of pulsed linac technologies. The coordination and synergy imposed by the EU rules increase the benefit of the allocated resources. Combined with the ongoing internal projects in the partner laboratories, these European initiatives represent a strong effort focussed towards the development of linac technologies. This paper summarises the requests from the various E...

  1. Lifetime Analysis at High Intensity Colliders Applied to the LHC

    E-Print Network [OSTI]

    Salvachua, B; Bruce, R; Burkart, F; Redaelli, S; Valentino, G; Wollmann, D

    2013-01-01

    The beam lifetime is one of the main parameters to define the performance of a collider. In a super-conducting machine like the LHC, the lifetime determines the intensity reach for a given collimation cleaning. The beam lifetime can be calculated from the direct measurement of beam current. However, due to the noise in the beam current signal only an average lifetime over several seconds can be calculated. We propose here an alternative method, which uses the signal of the beam loss monitors in the vicinity of the primary collimators to get the instantaneous beam lifetime at the collimators. In this paper we compare the lifetime from the two methods and investigate the minimum lifetime over the LHC cycle for all the physics fills in 2011 and 2012. These data provide a reference for estimates of performance reach from collimator cleaning.

  2. Simulations for single-dish intensity mapping experiments

    E-Print Network [OSTI]

    Bigot-Sazy, M -A; Battye, R A; Browne, I W A; Ma, Y -Z; Maffei, B; Noviello, F; Remazeilles, M; Wilkinson, P N

    2015-01-01

    HI intensity mapping is an emerging tool to probe dark energy. Observations of the redshifted HI signal will be contaminated by instrumental noise, atmospheric and Galactic foregrounds. The latter is expected to be four orders of magnitude brighter than the HI emission we wish to detect. We present a simulation of single-dish observations including an instrumental noise model with 1/f and white noise, and sky emission with a diffuse Galactic foreground and HI emission. We consider two foreground cleaning methods: spectral parametric fitting and principal component analysis. For a smooth frequency spectrum of the foreground and instrumental effects, we find that the parametric fitting method provides residuals that are still contaminated by foreground and 1/f noise, but the principal component analysis can remove this contamination down to the thermal noise level. This method is robust for a range of different models of foreground and noise, and so constitutes a promising way to recover the HI signal from the ...

  3. Towards phasing using high X-ray intensity

    SciTech Connect (OSTI)

    Galli, Lorenzo; Son, Sang -Kil; Barends, Thomas R. M.; White, Thomas A.; Barty, Anton; Botha, Sabine; Boutet, Sbastien; Caleman, Carl; Doak, R. Bruce; Nanao, Max H.; Nass, Karol; Shoeman, Robert L.; Timneanu, Nicusor; Santra, Robin; Schlichting, Ilme; Chapman, Henry N.

    2015-09-30

    X-ray free-electron lasers (XFELs) show great promise for macromolecular structure determination from sub-micrometre-sized crystals, using the emerging method of serial femtosecond crystallography. The extreme brightness of the XFEL radiation can multiply ionize most, if not all, atoms in a protein, causing their scattering factors to change during the pulse, with a preferential `bleaching' of heavy atoms. This paper investigates the effects of electronic damage on experimental data collected from a Gd derivative of lysozyme microcrystals at different X-ray intensities, and the degree of ionization of Gd atoms is quantified from phased difference Fourier maps. In conclusion, a pattern sorting scheme is proposed to maximize the ionization contrast and the way in which the local electronic damage can be used for a new experimental phasing method is discussed.

  4. Emittance of positron beams produced in intense laser plasma interaction

    SciTech Connect (OSTI)

    Chen Hui; Hazi, A.; Link, A.; Anderson, S.; Gronberg, J.; Izumi, N.; Tommasini, R.; Wilks, S. [Lawrence Livermore National Laboratory, Livermore, California 94551 (United States); Sheppard, J. C. [SLAC, Standford University, Menlo Park, California 94025 (United States); Meyerhofer, D. D. [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States); Baldis, H. A.; Marley, E.; Park, J.; Williams, G. J. [Department of Electrical and Computer Engineering, University of California, Davis, California 95616 (United States); Fedosejev, R.; Kerr, S. [Department of Applied Science, University of Alberta, Alberta T6G 2R3 (Canada)

    2013-01-15

    The first measurement of the emittance of intense laser-produced positron beams has been made. The emittance values were derived through measurements of positron beam divergence and source size for different peak positron energies under various laser conditions. For one of these laser conditions, we used a one dimensional pepper-pot technique to refine the emittance value. The laser-produced positrons have a geometric emittance between 100 and 500 mm{center_dot}mrad, comparable to the positron sources used at existing accelerators. With 10{sup 10}-10{sup 12} positrons per bunch, this low emittance beam, which is quasi-monoenergetic in the energy range of 5-20 MeV, may be useful as an alternative positron source for future accelerators.

  5. Ultra-High Intensity Magnetic Field Generation in Dense Plasma

    SciTech Connect (OSTI)

    Fisch, Nathaniel J

    2014-01-08

    I. Grant Objective The main objective of this grant proposal was to explore the efficient generation of intense currents. Whereasthefficient generation of electric current in low-?energy-? density plasma has occupied the attention of the magnetic fusion community for several decades, scant attention has been paid to carrying over to high-?energy-? density plasma the ideas for steady-?state current drive developed for low-?energy-? density plasma, or, for that matter, to inventing new methodologies for generating electric current in high-?energy-?density plasma. What we proposed to do was to identify new mechanisms to accomplish current generation, and to assess the operation, physics, and engineering basis of new forms of current drive in regimes appropriate for new fusion concepts.

  6. Adaptive RF Transient Reduction for HIGH Intensity Beams with Gaps

    E-Print Network [OSTI]

    Tckmantel, Joachim

    2006-01-01

    When a high-intensity beam with bunch-trains and gaps passes a cavity with a high-gain vector feedback enforcing a constant voltage, large transients appear, stressing the RF high power hardware and increasing the trip rate. By modulating the cavity voltage with a varying periodic waveform (set-function), the RF power can be made constant while still preserving the high feedback gain. The average cavity voltage is conserved but bunches have to settle at slightly shifted positions. A method is derived to obtain this set-function in practice while making no assumptions or measurements of the beam or RF parameters. Adiabatic iterations are made including the whole machine as an analog computing device, using all parameters as they are. A computer simulation shows the success of the method.

  7. Working Group Report: Computing for the Intensity Frontier

    SciTech Connect (OSTI)

    Rebel, B.; Sanchez, M.C.; Wolbers, S.

    2013-10-25

    This is the report of the Computing Frontier working group on Lattice Field Theory prepared for the proceedings of the 2013 Community Summer Study ("Snowmass"). We present the future computing needs and plans of the U.S. lattice gauge theory community and argue that continued support of the U.S. (and worldwide) lattice-QCD effort is essential to fully capitalize on the enormous investment in the high-energy physics experimental program. We first summarize the dramatic progress of numerical lattice-QCD simulations in the past decade, with some emphasis on calculations carried out under the auspices of the U.S. Lattice-QCD Collaboration, and describe a broad program of lattice-QCD calculations that will be relevant for future experiments at the intensity and energy frontiers. We then present details of the computational hardware and software resources needed to undertake these calculations.

  8. High intensity neutrino source superconducting solenoid cyrostat design

    SciTech Connect (OSTI)

    Page, T.M.; Nicol, T.H.; Feher, S.; Terechkine, I.; Tompkins, J.; /Fermilab

    2006-06-01

    Fermi National Accelerator Laboratory (FNAL) is involved in the development of a 100 MeV superconducting linac. This linac is part of the High Intensity Neutrino Source (HINS) R&D Program. The initial beam acceleration in the front end section of the linac is achieved using room temperature spoke cavities, each of which is combined with a superconducting focusing solenoid. These solenoid magnets are cooled with liquid helium at 4.5K, operate at 250 A and have a maximum magnetic field strength of 7.5 T. The solenoid cryostat will house the helium vessel, suspension system, thermal shield, multilayer insulation, power leads, instrumentation, a vacuum vessel and cryogenic distribution lines. This paper discusses the requirements and detailed design of these superconducting solenoid cryostats.

  9. INERTIAL FUSION DRIVEN BY INTENSE HEAVY-ION BEAMS

    SciTech Connect (OSTI)

    Sharp, W. M.; Friedman, A.; Grote, D. P.; Barnard, J. J.; Cohen, R. H.; Dorf, M. A.; Lund, S. M.; Perkins, L. J.; Terry, M. R.; Logan, B. G.; Bieniosek, F. M.; Faltens, A.; Henestroza, E.; Jung, J. Y.; Kwan, J. W.; Lee, E. P.; Lidia, S. M.; Ni, P. A.; Reginato, L. L.; Roy, P. K.; Seidl, P. A.; Takakuwa, J. H.; Vay, J.-L.; Waldron, W. L.; Davidson, R. C.; Gilson, E. P.; Kaganovich, I. D.; Qin, H.; Startsev, E.; Haber, I.; Kishek, R. A.; Koniges, A. E.

    2011-03-31

    Intense heavy-ion beams have long been considered a promising driver option for inertial-fusion energy production. This paper briefly compares inertial confinement fusion (ICF) to the more-familiar magnetic-confinement approach and presents some advantages of using beams of heavy ions to drive ICF instead of lasers. Key design choices in heavy-ion fusion (HIF) facilities are discussed, particularly the type of accelerator. We then review experiments carried out at Lawrence Berkeley National Laboratory (LBNL) over the past thirty years to understand various aspects of HIF driver physics. A brief review follows of present HIF research in the US and abroad, focusing on a new facility, NDCX-II, being built at LBNL to study the physics of warm dense matter heated by ions, as well as aspects of HIF target physics. Future research directions are briefly summarized.

  10. Towards phasing using high X-ray intensity

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

    Galli, Lorenzo; Son, Sang -Kil; Barends, Thomas R. M.; White, Thomas A.; Barty, Anton; Botha, Sabine; Boutet, Sbastien; Caleman, Carl; Doak, R. Bruce; Nanao, Max H.; et al

    2015-09-30

    X-ray free-electron lasers (XFELs) show great promise for macromolecular structure determination from sub-micrometre-sized crystals, using the emerging method of serial femtosecond crystallography. The extreme brightness of the XFEL radiation can multiply ionize most, if not all, atoms in a protein, causing their scattering factors to change during the pulse, with a preferential `bleaching' of heavy atoms. This paper investigates the effects of electronic damage on experimental data collected from a Gd derivative of lysozyme microcrystals at different X-ray intensities, and the degree of ionization of Gd atoms is quantified from phased difference Fourier maps. In conclusion, a pattern sorting schememoreis proposed to maximize the ionization contrast and the way in which the local electronic damage can be used for a new experimental phasing method is discussed.less

  11. Regulating the Regulators: The Increased Role for the Federal Judiciary in Monitoring the Debate over Genetically Modified Crops

    E-Print Network [OSTI]

    Denton, Blake

    2007-01-01

    Policy on Genetically Modified Food and Agriculture, 44 B.C.Regulation of Genetically Modified Foods, 35 U. MICH. J.L.Over Labeling of Genetically Modified Foods in the United

  12. Unscreening modified gravity in the matter power spectrum

    E-Print Network [OSTI]

    Lucas Lombriser; Fergus Simpson; Alexander Mead

    2015-01-20

    Viable modifications of gravity that may produce cosmic acceleration need to be screened in high-density regions such as the Solar System, where general relativity is well tested. Screening mechanisms also prevent strong anomalies in the large-scale structure and limit the constraints that can be inferred on these gravity models from cosmology. We find that by suppressing the contribution of the screened high-density regions in the matter power spectrum, allowing a greater contribution of unscreened low densities, modified gravity models can be more readily discriminated from the concordance cosmology. Moreover, by variation of density thresholds, degeneracies with other effects may be dealt with more adequately. Specializing to chameleon gravity as a worked example for screening in modified gravity, employing N-body simulations of f(R) models and the halo model of chameleon theories, we demonstrate the effectiveness of this method. We find that a percent-level measurement of the clipped power at k Solar System tests or distance indicators in unscreened dwarf galaxies.

  13. Unscreening Modified Gravity in the Matter Power Spectrum

    E-Print Network [OSTI]

    Lucas Lombriser; Fergus Simpson; Alexander Mead

    2015-09-21

    Viable modifications of gravity that may produce cosmic acceleration need to be screened in high-density regions such as the Solar System, where general relativity is well tested. Screening mechanisms also prevent strong anomalies in the large-scale structure and limit the constraints that can be inferred on these gravity models from cosmology. We find that by suppressing the contribution of the screened high-density regions in the matter power spectrum, allowing a greater contribution of unscreened low densities, modified gravity models can be more readily discriminated from the concordance cosmology. Moreover, by variation of density thresholds, degeneracies with other effects may be dealt with more adequately. Specializing to chameleon gravity as a worked example for screening in modified gravity, employing N-body simulations of f(R) models and the halo model of chameleon theories, we demonstrate the effectiveness of this method. We find that a percent-level measurement of the clipped power at k Solar System tests or distance indicators in unscreened dwarf galaxies. Finally, we verify that our method is also applicable to the Vainshtein mechanism.

  14. Introduction to Modified Gravity and Gravitational Alternative for Dark Energy

    E-Print Network [OSTI]

    S. Nojiri; S. D. Odintsov

    2006-03-31

    We review various modified gravities considered as gravitational alternative for dark energy. Specifically, we consider the versions of $f(R)$, $f(G)$ or $f(R,G)$ gravity, model with non-linear gravitational coupling or string-inspired model with Gauss-Bonnet-dilaton coupling in the late universe where they lead to cosmic speed-up. It is shown that some of such theories may pass the Solar System tests. On the same time, it is demonstrated that they have quite rich cosmological structure: they may naturally describe the effective (cosmological constant, quintessence or phantom) late-time era with a possible transition from decceleration to acceleration thanks to gravitational terms which increase with scalar curvature decrease. The possibility to explain the coincidence problem as the manifestation of the universe expansion in such models is mentioned. The late (phantom or quintessence) universe filled with dark fluid with inhomogeneous equation of state (where inhomogeneous terms are originated from the modified gravity) is also described.

  15. Modified Gravity N-body Code Comparison Project

    E-Print Network [OSTI]

    Hans A. Winther; Fabian Schmidt; Alexandre Barreira; Christian Arnold; Sownak Bose; Claudio Llinares; Marco Baldi; Bridget Falck; Wojciech A. Hellwing; Kazuya Koyama; Baojiu Li; David F. Mota; Ewald Puchwein; Robert Smith; Gong-Bo Zhao

    2015-06-21

    Self-consistent ${\\it N}$-body simulations of modified gravity models are a key ingredient to obtain rigorous constraints on deviations from General Relativity using large-scale structure observations. This paper provides the first detailed comparison of the results of different ${\\it N}$-body codes for the $f(R)$, DGP, and Symmetron models, starting from the same initial conditions. We find that the fractional deviation of the matter power spectrum from $\\Lambda$CDM agrees to better than $1\\%$ up to $k \\sim 5-10~h/{\\rm Mpc}$ between the different codes. These codes are thus able to meet the stringent accuracy requirements of upcoming observational surveys. All codes are also in good agreement in their results for the velocity divergence power spectrum, halo abundances and halo profiles. We also test the quasi-static limit, which is employed in most modified gravity ${\\it N}$-body codes, for the Symmetron model for which the most significant non-static effects among the models considered are expected. We conclude that this limit is a very good approximation for all of the observables considered here.

  16. Carbon dioxide pressure swing adsorption process using modified alumina adsorbents

    DOE Patents [OSTI]

    Gaffney, T.R.; Golden, T.C.; Mayorga, S.G.; Brzozowski, J.R.; Taylor, F.W.

    1999-06-29

    A pressure swing adsorption process for absorbing CO[sub 2] from a gaseous mixture containing CO[sub 2] comprises introducing the gaseous mixture at a first pressure into a reactor containing a modified alumina adsorbent maintained at a temperature ranging from 100 C and 500 C to adsorb CO[sub 2] to provide a CO[sub 2] laden alumina adsorbent and a CO[sub 2] depleted gaseous mixture and contacting the CO[sub 2] laden adsorbent with a weakly adsorbing purge fluid at a second pressure which is lower than the first pressure to desorb CO[sub 2] from the CO[sub 2] laden alumina adsorbent. The modified alumina adsorbent which is formed by depositing a solution having a pH of 3.0 or more onto alumina and heating the alumina to a temperature ranging from 100 C and 600 C, is not degraded by high concentrations of water under process operating conditions. 1 fig.

  17. Modified Newton's law, braneworlds, and the gravitational quantum well

    E-Print Network [OSTI]

    F. Buisseret; B. Silvestre-Brac; V. Mathieu

    2007-01-18

    Most of the theories involving extra dimensions assume that only the gravitational interaction can propagate in them. In such approaches, called brane world models, the effective, 4-dimensional, Newton's law is modified at short as well as at large distances. Usually, the deformation of Newton's law at large distances is parametrized by a Yukawa potential, which arises mainly from theories with compactified extra dimensions. In many other models however, the extra dimensions are infinite. These approaches lead to a large distance power-law deformation of the gravitational newtonian potential $V_N(r)$, namely $V(r)=(1+k_b/r^b)V_N(r)$, which is less studied in the literature. We investigate here the dynamics of a particle in a gravitational quantum well with such a power-law deformation. The effects of the deformation on the energy spectrum are discussed. We also compare our modified spectrum to the results obtained with the GRANIT experiment, where the effects of the Earth's gravitational field on quantum states of ultra cold neutrons moving above a mirror are studied. This comparison leads to upper bounds on $b$ and $k_b$.

  18. Morphological studies on block copolymer modified PA 6 blends

    SciTech Connect (OSTI)

    Poindl, M., E-mail: marcus.poindl@ikt.uni-stuttgart.de, E-mail: christian.bonten@ikt.uni-stuttgart.de; Bonten, C., E-mail: marcus.poindl@ikt.uni-stuttgart.de, E-mail: christian.bonten@ikt.uni-stuttgart.de [Institut fr Kunststofftechnik, University of Stuttgart (Germany)

    2014-05-15

    Recent studies show that compounding polyamide 6 (PA 6) with a PA 6 polyether block copolymers made by reaction injection molding (RIM) or continuous anionic polymerization in a reactive extrusion process (REX) result in blends with high impact strength and high stiffness compared to conventional rubber blends. In this paper, different high impact PA 6 blends were prepared using a twin screw extruder. The different impact modifiers were an ethylene propylene copolymer, a PA PA 6 polyether block copolymer made by reaction injection molding and one made by reactive extrusion. To ensure good particle matrix bonding, the ethylene propylene copolymer was grafted with maleic anhydride (EPR-g-MA). Due to the molecular structure of the two block copolymers, a coupling agent was not necessary. The block copolymers are semi-crystalline and partially cross-linked in contrast to commonly used amorphous rubbers which are usually uncured. The combination of different analysis methods like atomic force microscopy (AFM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) gave a detailed view in the structure of the blends. Due to the partial cross-linking, the particles of the block copolymers in the blends are not spherical like the ones of ethylene propylene copolymer. The differences in molecular structure, miscibility and grafting of the impact modifiers result in different mechanical properties and different blend morphologies.

  19. Classifying Linearly Shielded Modified Gravity Models in Effective Field Theory

    E-Print Network [OSTI]

    Lucas Lombriser; Andy Taylor

    2015-01-31

    We study the model space generated by the time-dependent operator coefficients in the effective field theory of the cosmological background evolution and perturbations of modified gravity and dark energy models. We identify three classes of modified gravity models that reduce to Newtonian gravity on the small scales of linear theory. These general classes contain enough freedom to simultaneously admit a matching of the concordance model background expansion history. In particular, there exists a large model space that mimics the concordance model on all linear quasistatic subhorizon scales as well as in the background evolution. Such models also exist when restricting the theory space to operators introduced in Horndeski scalar-tensor gravity. We emphasize that whereas the partially shielded scenarios might be of interest to study in connection with tensions between large and small scale data, with conventional cosmological probes, the ability to distinguish the fully shielded scenarios from the concordance model on near-horizon scales will remain limited by cosmic variance. Novel tests of the large-scale structure remedying this deficiency and accounting for the full covariant nature of the alternative gravitational theories, however, might yield further insights on gravity in this regime.

  20. Modified Gravity N-body Code Comparison Project

    E-Print Network [OSTI]

    Hans A. Winther; Fabian Schmidt; Alexandre Barreira; Christian Arnold; Sownak Bose; Claudio Llinares; Marco Baldi; Bridget Falck; Wojciech A. Hellwing; Kazuya Koyama; Baojiu Li; David F. Mota; Ewald Puchwein; Robert E. Smith; Gong-Bo Zhao

    2015-09-29

    Self-consistent ${\\it N}$-body simulations of modified gravity models are a key ingredient to obtain rigorous constraints on deviations from General Relativity using large-scale structure observations. This paper provides the first detailed comparison of the results of different ${\\it N}$-body codes for the $f(R)$, DGP, and Symmetron models, starting from the same initial conditions. We find that the fractional deviation of the matter power spectrum from $\\Lambda$CDM agrees to better than $1\\%$ up to $k \\sim 5-10~h/{\\rm Mpc}$ between the different codes. These codes are thus able to meet the stringent accuracy requirements of upcoming observational surveys. All codes are also in good agreement in their results for the velocity divergence power spectrum, halo abundances and halo profiles. We also test the quasi-static limit, which is employed in most modified gravity ${\\it N}$-body codes, for the Symmetron model for which the most significant non-static effects among the models considered are expected. We conclude that this limit is a very good approximation for all of the observables considered here.

  1. Structure formation in modified gravity models alternative to dark energy

    E-Print Network [OSTI]

    Kazuya Koyama

    2006-01-10

    We study structure formation in phenomenological models in which the Friedmann equation receives a correction of the form $H^{\\alpha}/r_c^{2-\\alpha}$, which realize an accelerated expansion without dark energy. In order to address structure formation in these model, we construct simple covariant gravitational equations which give the modified Friedmann equation with $\\alpha=2/n$ where $n$ is an integer. For $n=2$, the underlying theory is known as a 5D braneworld model (the DGP model). Thus the models interpolate between the DGP model ($n=2, \\alpha=1$) and the LCDM model in general relativity ($n \\to \\infty, \\alpha \\to 0$). Using the covariant equations, cosmological perturbations are analyzed. It is shown that in order to satisfy the Bianchi identity at a perturbative level, we need to introduce a correction term $E_{\\mu \

  2. Structure formation in modified gravity models alternative to dark energy

    E-Print Network [OSTI]

    Koyama, K

    2006-01-01

    We study structure formation in phenomenological models in which the Friedmann equation receives a correction of the form $H^{\\alpha}/r_c^{2-\\alpha}$, which realize an accelerated expansion without dark energy. In order to address structure formation in these model, we construct simple covariant gravitational equations which give the modified Friedmann equation with $\\alpha=2/n$ where $n$ is an integer. For $n=2$, the underlying theory is known as a 5D braneworld model (the DGP model). Thus the models interpolate between the DGP model ($n=2, \\alpha=1$) and the LCDM model in general relativity ($n \\to \\infty, \\alpha \\to 0$). Using the covariant equations, cosmological perturbations are analyzed. It is shown that in order to satisfy the Bianchi identity at a perturbative level, we need to introduce a correction term $E_{\\mu \

  3. Introduction to Modified Gravity and Gravitational Alternative for Dark Energy

    E-Print Network [OSTI]

    Nojiri, S

    2006-01-01

    We review various modified gravities considered as gravitational alternative for dark energy. Specifically, we consider the versions of $f(R)$, $f(G)$ or $f(R,G)$ gravity, model with non-linear gravitational coupling or string-inspired model with Gauss-Bonnet-dilaton coupling in the late universe where they lead to cosmic speed-up. It is shown that some of such theories may pass the Solar System tests. On the same time, it is demonstrated that they have quite rich cosmological structure: they may naturally describe the effective (cosmological constant, quintessence or phantom) late-time era with a possible transition from decceleration to acceleration thanks to gravitational terms which increase with scalar curvature decrease. The possibility to explain the coincidence problem as the manifestation of the universe expansion in such models is mentioned. The late (phantom or quintessence) universe filled with dark fluid with inhomogeneous equation of state (where inhomogeneous terms are originated from the modif...

  4. Test of modified BCS model at finite temperature

    E-Print Network [OSTI]

    V. Yu. Ponomarev; A. I. Vdovin

    2005-08-24

    A recently suggested modified BCS (MBCS) model has been studied at finite temperature. We show that this approach does not allow the existence of the normal (non-superfluid) phase at any finite temperature. Other MBCS predictions such as a negative pairing gap, pairing induced by heating in closed-shell nuclei, and ``superfluid -- super-superfluid'' phase transition are discussed also. The MBCS model is tested by comparing with exact solutions for the picket fence model. Here, severe violation of the internal symmetry of the problem is detected. The MBCS equations are found to be inconsistent. The limit of the MBCS applicability has been determined to be far below the ``superfluid -- normal'' phase transition of the conventional FT-BCS, where the model performs worse than the FT-BCS.

  5. Modified zeolite-based catalyst for effective extinction hydrocracking

    SciTech Connect (OSTI)

    Yan, T.Y. (Mobil Research and Development Corp., Princeton, NJ (USA))

    1989-10-01

    The shape selectivity of zeolites makes them generally ineffective for extinction hydrocracking of polycyclic aromatic feeds. To overcome this problem, the zeolite can be modified with an amorphous cracking component to form a composite catalyst. This composite catalyst will be effective for extinction hydrocracking and retain the superior performance characteristics of a zeolite catalyst at the same time because the zeolite and the amorphous components of the catalyst operate complementarily. To illustrate this principle, NiW/REX-NiW/SiO/sub 2/Al/sub 2/O/sub 3/ composite catalyst was tested in the pilot plant. It was active, low in aging rate, resistant to nitrogen poisoning and high in selectivities for naphthas. The aged catalyst could be oxidatively regenerated to fully recover the activity and the product selectivities. This composite catalyst was superior to both individual (zeolite and amorphous) components for extinction hydrocracking. Catalysts similar to this have been used commercially for many years.

  6. Modified Magnicon for High-Gradient Accelerator R&D

    SciTech Connect (OSTI)

    Jay L. Hirshfield

    2011-12-19

    Analysis, and low-power cold tests are described on a modified design intended for the Ka-band pulsed magnicon now in use for high-gradient accelerator R and D and rare elementary particle searches at the Yale University Beam Physics Laboratory. The modification is mainly to the output cavity of the magnicon, which presently operates in the TM310 mode. It is proposed to substitute for this a dual-chamber TE311 cavity structure. The first chamber is to extract about 40% of the beam power (about 25 MW) at 34.272 GHz, while the second chamber is to convey the power to four WR-28 output waveguides. Minor design changes are also proposed for the penultimate 11.424 GHz cavity and the beam collector. The intention of these design changes is to allow the magnicon to operate reliably 24/7, with minor sensitivity to operating parameters.

  7. Thermodynamics of apparent horizon and modified Friedman equations

    E-Print Network [OSTI]

    Ahmad Sheykhi

    2010-12-02

    Starting from the first law of thermodynamics, $dE=T_hdS_h+WdV$, at apparent horizon of a FRW universe, and assuming that the associated entropy with apparent horizon has a quantum corrected relation, $S=\\frac{A}{4G}-\\alpha \\ln \\frac{A}{4G}+\\beta \\frac{4G}{A}$, we derive modified Friedmann equations describing the dynamics of the universe with any spatial curvature. We also examine the time evolution of the total entropy including the quantum corrected entropy associated with the apparent horizon together with the matter field entropy inside the apparent horizon. Our study shows that, with the local equilibrium assumption, the generalized second law of thermodynamics is fulfilled in a region enclosed by the apparent horizon.

  8. Thermodynamics of Modified Chaplygin Gas and Tachyonic Field

    E-Print Network [OSTI]

    Samarpita Bhattacharya; Ujjal Debnath

    2010-12-26

    Here we generalize the results of the work of ref. [10] in modified Chaplygin gas model and tachyonic field model. Here we have studied the thermodynamical behaviour and the equation of state in terms of volume and temperature for both models. We have used the solution and the corresponding equation of state of our previous work [12] for tachyonic field model. We have also studied the thermodynamical stability using thermal equation of state for the tachyonic field model and have shown that there is no critical points during thermodynamical expansion. The determination of $T_{*}$ due to expansion for the tachyonic field have been discussed by assuming some initial conditions. Here, the thermal quantities have been investigated using some reduced parameters.

  9. Fusion-fission reactions with modified Woods-Saxon potential

    E-Print Network [OSTI]

    Ning Wang; Kai Zhao; Werner Scheid; Xizhen Wu

    2007-12-15

    A modified Woods-Saxon potential model is proposed for a unified description of the entrance channel fusion barrier and the fission barrier of fusion-fission reactions based on the Skyrme energy-density functional approach. The fusion excitation functions of 120 reactions have been systematically studied. The fusion (capture) cross sections are well described with the calculated potential and an empirical barrier distribution. Incorporating a statistical model (HIVAP code) for describing the decay of the compound nucleus, the evaporation residue (and fission) cross sections of 51 fusion-fission reactions have been systematically investigated. Optimal values of some key parameters of the HIVAP code are obtained based on the experimental data of these reactions. The experimental data are reasonably well reproduced by the calculated results. The upper and lower confidence limits of the systematic errors of the calculated results are given.

  10. Nuclear symmetry energy in a modified quark meson coupling model

    E-Print Network [OSTI]

    Mishra, R N; Panda, P K; Barik, N; Frederico, T

    2015-01-01

    We study nuclear symmetry energy and the thermodynamic instabilities of asymmetric nuclear matter in a self-consistent manner by using a modified quark-meson coupling model where the confining interaction for quarks inside a nucleon is represented by a phenomenologically averaged potential in an equally mixed scalar-vector harmonic form. The nucleon-nucleon interaction in nuclear matter is then realized by introducing additional quark couplings to $\\sigma$, $\\omega$, and $\\rho$ mesons through mean-field approximations. We find an analytic expression for the symmetry energy ${\\cal E}_{sym}$ as a function of its slope $L$. Our result establishes a linear correlation between $L$ and ${\\cal E}_{sym}$. We also analyze the constraint on neutron star radii in $(pn)$ matter with $\\beta$ equilibrium.

  11. Surface modified stainless steels for PEM fuel cell bipolar plates

    SciTech Connect (OSTI)

    Brady, Michael P; Wang, Heli; Turner, John A

    2007-07-24

    A nitridation treated stainless steel article (such as a bipolar plate for a proton exchange membrane fuel cell) having lower interfacial contact electrical resistance and better corrosion resistance than an untreated stainless steel article is disclosed. The treated stainless steel article has a surface layer including nitrogen-modified chromium-base oxide and precipitates of chromium nitride formed during nitridation wherein oxygen is present in the surface layer at a greater concentration than nitrogen. The surface layer may further include precipitates of titanium nitride and/or aluminum oxide. The surface layer in the treated article is chemically heterogeneous surface rather than a uniform or semi-uniform surface layer exclusively rich in chromium, titanium or aluminum. The precipitates of titanium nitride and/or aluminum oxide are formed by the nitriding treatment wherein titanium and/or aluminum in the stainless steel are segregated to the surface layer in forms that exhibit a low contact resistance and good corrosion resistance.

  12. Intense Pulsed Neutron Emission from a Compact Pyroelectric Driven Accelerator

    SciTech Connect (OSTI)

    Tang, V; Meyer, G; Falabella, S; Guethlein, G; Sampayan, S; Kerr, P; Rusnak, B; Morse, J

    2008-10-08

    Intense pulsed D-D neutron emission with rates >10{sup 10} n/s during the pulse, pulse widths of {approx}100's ns, and neutron yields >10 k per pulse are demonstrated in a compact pyroelectric accelerator. The accelerator consists of a small pyroelectric LiTaO{sub 3} crystal which provides the accelerating voltage and an independent compact spark plasma ion source. The crystal voltage versus temperature is characterized and compare well with theory. Results show neutron output per pulse that scales with voltage as V{approx}1.7. These neutron yields match a simple model of the system at low voltages but are lower than predicted at higher voltages due to charge losses not accounted for in the model. Interpretation of the data against modeling provides understanding of the accelerator and in general pyroelectric LiTaO{sub 3} crystals operated as charge limited negative high voltage targets. The findings overall serve as the proof-of-principle and basis for pyroelectric neutron generators that can be pulsed, giving peak neutron rates orders of magnitude greater than previous work, and notably increase the potential applications of pyroelectric based neutron generators.

  13. Quasiperiodic and chaotic motions in intense field multiphoton processes

    SciTech Connect (OSTI)

    Shih-I Chu

    1987-09-25

    The question of the behavior of quantum systems in time-dependent fields whose classical counterparts exhibit chaotic behavior is addressed. For any nondissipative bounded quantum system under the influence of polychromatic (i.e., quasiperiodic) fields, it is proved by means of the many-mode Floquet theory that the auto-correlation function will recur infinitely often in the course of time, indicating no strict quantum stochasticity is possible. In particular, for an N-level quantum system undergoing multiphoton transitions, its dynamic behavior is described by the quasiperiodic motion of an (N/sup 2/--1)-dimensional coherence vector S-arrow-right in accord with the SU(N) dynamic symmetries. On the other hand, for any dissipative quantum system, SU(N) symmetries are broken, and non-quasiperiodic behavior is observed as the coherence vector S-arrow-right evolves from an initially (N/sup 2/--1)-dimensional space to a lower-dimensional space. The dynamical behaviors are illustrated for two- and three-level quantum systems driven by intense bichromatic laser fields.

  14. National Level Co-Control Study of the Targets for Energy Intensity and Sulfur Dioxide in China

    E-Print Network [OSTI]

    Zhou, Nan

    2013-01-01

    the Tool BEST Cement: Benchmarking and Energy Savings ToolZhou. 2008. World Best Practice Energy Intensity Values forpublications/world-best-practice-energy- intensity-values-

  15. A novel femtosecond-gated, high-resolution, frequency-shifted shearing interferometry technique for probing pre-plasma expansion in ultra-intense laser experiments

    SciTech Connect (OSTI)

    Feister, S. Orban, C.; Nees, J. A.; Morrison, J. T.; Frische, K. D.; Chowdhury, E. A.; Roquemore, W. M.

    2014-11-15

    Ultra-intense laser-matter interaction experiments (>10{sup 18} W/cm{sup 2}) with dense targets are highly sensitive to the effect of laser noise (in the form of pre-pulses) preceding the main ultra-intense pulse. These system-dependent pre-pulses in the nanosecond and/or picosecond regimes are often intense enough to modify the target significantly by ionizing and forming a plasma layer in front of the target before the arrival of the main pulse. Time resolved interferometry offers a robust way to characterize the expanding plasma during this period. We have developed a novel pump-probe interferometry system for an ultra-intense laser experiment that uses two short-pulse amplifiers synchronized by one ultra-fast seed oscillator to achieve 40-fs time resolution over hundreds of nanoseconds, using a variable delay line and other techniques. The first of these amplifiers acts as the pump and delivers maximal energy to the interaction region. The second amplifier is frequency shifted and then frequency doubled to generate the femtosecond probe pulse. After passing through the laser-target interaction region, the probe pulse is split and recombined in a laterally sheared Michelson interferometer. Importantly, the frequency shift in the probe allows strong plasma self-emission at the second harmonic of the pump to be filtered out, allowing plasma expansion near the critical surface and elsewhere to be clearly visible in the interferograms. To aid in the reconstruction of phase dependent imagery from fringe shifts, three separate 120 phase-shifted (temporally sheared) interferograms are acquired for each probe delay. Three-phase reconstructions of the electron densities are then inferred by Abel inversion. This interferometric system delivers precise measurements of pre-plasma expansion that can identify the condition of the target at the moment that the ultra-intense pulse arrives. Such measurements are indispensable for correlating laser pre-pulse measurements with instantaneous plasma profiles and for enabling realistic Particle-in-Cell simulations of the ultra-intense laser-matter interaction.

  16. Methods for producing partially digested restriction DNA fragments and for producing a partially modified PCR product

    DOE Patents [OSTI]

    Wong, Kwong-Kwok (Richland, WA)

    2000-01-01

    The present invention is an improved method of making a partially modified PCR product from a DNA fragment with a polymerase chain reaction (PCR). In a standard PCR process, the DNA fragment is combined with starting deoxynucleoside triphosphates, a primer, a buffer and a DNA polymerase in a PCR mixture. The PCR mixture is then reacted in the PCR producing copies of the DNA fragment. The improvement of the present invention is adding an amount of a modifier at any step prior to completion of the PCR process thereby randomly and partially modifying the copies of the DNA fragment as a partially modified PCR product. The partially modified PCR product may then be digested with an enzyme that cuts the partially modified PCR product at unmodified sites thereby producing an array of DNA restriction fragments.

  17. Self-focusing and stimulated Brillouin back-scattering of a long intense laser pulse in a finite temperature relativistic plasma

    SciTech Connect (OSTI)

    Niknam, A. R.; Barzegar, S.; Hashemzadeh, M.

    2013-12-15

    The nonlinear dynamics of electromagnetic waves propagating through a plasma considering the effects of relativistic mass and ponderomotive nonlinearities is investigated. The modified electron density distribution, the dispersion relation, and the spatial profiles of electromagnetic wave amplitude in the plasma are obtained. It is shown that the cut-off frequency decreases, and there is an intensity range in which the ponderomotive self-focusing takes place. In the upper limit of this range, the laser beam is defocused due to the relativistic ponderomotive force. In addition, the stability of electromagnetic waves to stimulated Brillouin scattering is studied, and the backscattered wave resulting from decay of high power electromagnetic beam is resolved in relativistic regime. The study of effects of electron density and temperature on the growth rate of backscattered wave has been shown that by increasing these effects, the growth rate of instability increases.

  18. Industrial Sector Energy Demand: Revisions for Non-Energy-Intensive Manufacturing (released in AEO2007)

    Reports and Publications (EIA)

    2007-01-01

    For the industrial sector, the Energy Information Administration's (EIA) analysis and projection efforts generally have focused on the energy-intensive industriesfood, bulk chemicals, refining, glass, cement, steel, and aluminumwhere energy cost averages 4.8% of annual operating cost. Detailed process flows and energy intensity indicators have been developed for narrowly defined industry groups in the energy-intensive manufacturing sector. The non-energy-intensive manufacturing industries, where energy cost averages 1.9% of annual operating cost, previously have received somewhat less attention, however. In Annual Energy Outlook 2006 (AEO), energy demand projections were provided for two broadly aggregated industry groups in the non-energy-intensive manufacturing sector: metal-based durables and other non-energy-intensive. In the AEO2006 projections, the two groups accounted for more than 50% of the projected increase in industrial natural gas consumption from 2004 to 2030.

  19. Changes in energy intensity in the manufacturing sector 1985--1991

    SciTech Connect (OSTI)

    1995-09-15

    In this report, energy intensity is defined as the ratio of energy consumption per unit of output. Output is measured as the constant dollar of value of shipments and receipts, and two measures of energy consumption are presented in British thermal units (Btu): Offsite-Produced Energy and Total Inputs of Energy. A decrease in energy intensity from one period to another suggests an increase in energy efficiency, and vice versa. Energy efficiency can be defined and measured in various ways. Certain concepts of energy efficiency, especially those limited to equipment efficiencies, cannot be measured over time using changes in energy-intensity ratios. While improved energy efficiency will tend to reduce energy intensity, it is also true that a change in energy intensity can be due to factors unrelated to energy efficiency. For this report, energy intensity is used as a surrogate measure for energy efficiency, based on industry knowledge and current methodological analyses.

  20. HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS

    SciTech Connect (OSTI)

    Henestroza, E.; Leitner, M.; Logan, B.G.; More, R.M.; Roy, P.K.; Ni, P.; Seidl, P.A.; Waldron, W.L.; Barnard, J.J.

    2010-03-16

    The US heavy ion fusion science program has developed techniques for heating ion-beam-driven warm dense matter (WDM) targets. The WDM conditions are to be achieved by combined longitudinal and transverse space-charge neutralized drift compression of the ion beam to provide a hot spot on the target with a beam spot size of about 1 mm, and pulse length about 1-2 ns. As a technique for heating volumetric samples of matter to high energy density, intense beams of heavy ions are capable of delivering precise and uniform beam energy deposition dE/dx, in a relatively large sample size, and the ability to heat any solid-phase target material. Initial experiments use a 0.3 MeV K+ beam (below the Bragg peak) from the NDCX-I accelerator. Future plans include target experiments using the NDCX-II accelerator, which is designed to heat targets at the Bragg peak using a 3-6 MeV lithium ion beam. The range of the beams in solid matter targets is about 1 micron, which can be lengthened by using porous targets at reduced density. We have completed the fabrication of a new experimental target chamber facility for WDM experiments, and implemented initial target diagnostics to be used for the first target experiments in NDCX-1. The target chamber has been installed on the NDCX-I beamline. The target diagnostics include a fast multi-channel optical pyrometer, optical streak camera, VISAR, and high-speed gated cameras. Initial WDM experiments will heat targets by compressed NDCX-I beams and will explore measurement of temperature and other target parameters. Experiments are planned in areas such as dense electronegative targets, porous target homogenization and two-phase equation of state.

  1. HIGH ENERGY DENSITY PHYSICS EXPERIMENTS WITH INTENSE HEAVY ION BEAMS

    SciTech Connect (OSTI)

    Bieniosek, F.M.; Henestroza, E.; Leitner, M.; Logan, B.G.; More, R.M.; Roy, P.K.; Ni, P.; Seidl, P.A.; Waldron, W.L.; Barnard, J.J.

    2008-08-01

    The US heavy ion fusion science program has developed techniques for heating ion-beam-driven warm dense matter (WDM) targets. The WDM conditions are to be achieved by combined longitudinal and transverse space-charge neutralized drift compression of the ion beam to provide a hot spot on the target with a beam spot size of about 1 mm, and pulse length about 1-2 ns. As a technique for heating volumetric samples of matter to high energy density, intense beams of heavy ions are capable of delivering precise and uniform beam energy deposition dE/dx, in a relatively large sample size, and the ability to heat any solid-phase target material. Initial experiments use a 0.3 MeV K+ beam (below the Bragg peak) from the NDCX-I accelerator. Future plans include target experiments using the NDCX-II accelerator, which is designed to heat targets at the Bragg peak using a 3-6 MeV lithium ion beam. The range of the beams in solid matter targets is about 1 micron, which can be lengthened by using porous targets at reduced density. We have completed the fabrication of a new experimental target chamber facility for WDM experiments, and implemented initial target diagnostics to be used for the first target experiments in NDCX-1. The target chamber has been installed on the NDCX-I beamline. The target diagnostics include a fast multi-channel optical pyrometer, optical streak camera, VISAR, and high-speed gated cameras. Initial WDM experiments will heat targets by compressed NDCX-I beams and will explore measurement of temperature and other target parameters. Experiments are planned in areas such as dense electronegative targets, porous target homogenization and two-phase equation of state.

  2. Glass Strengthening via High-Intensity Plasma-Arc Heating

    SciTech Connect (OSTI)

    Wereszczak, Andrew A; Harper, David C; Duty, Chad E; Patel, P

    2010-01-01

    The use of a high-intensity plasma-arc lamp was used to irradiate the surface of soda-lime silicate glass tiles to determine if an increase in strength could be achieved. The lamp had a power density of 3500 W/cm2, a processing area of 1 cm x 10 cm, irradiated near-infrared heating at a wavelength between 0.2 1.4 m, and was controlled to unidirectionally sweep across 50-mm-square tiles at a constant speed of 8 mm/s. Ring-on-ring (RoR) equibiaxial flexure and 4 pt uni-directional flexure testings of entire tiles were used to measure and compare failure stress distributions of treated and untreated glass. Even with non-optimized processing conditions, RoR failure stress increased by approximately 25% and the 4 pt bend failure stress increased by approximately 65%. Strengthening was due to a fire-polishing-like mechanism. The arc-lamp heat-treatment caused the location of the strength-limiting flaws in the 4-pt-bend tiles to change; namely, failure initiation occurred on the gage section surface for the treated glass whereas it occurred at a gage section edge for the untreated. Arc-lamp heat-treatment is attractive not only because it provides strengthening, but because it can (non-contact) process large amounts of glass quickly and inexpensively, and is a process that either a glass manufacturer or end-user can readily employ.

  3. Energy end-use intensities in commercial buildings

    SciTech Connect (OSTI)

    Not Available

    1994-09-01

    This report examines energy intensities in commercial buildings for nine end uses: space heating, cooling, ventilation, lighting, water heating, cooking, refrigeration, office equipment, and other. The objective of this analysis was to increase understanding of how energy is used in commercial buildings and to identify targets for greater energy efficiency which could moderate future growth in demand. The source of data for the analysis is the 1989 Commercial Buildings Energy Consumption survey (CBECS), which collected detailed data on energy-related characteristics and energy consumption for a nationally representative sample of approximately 6,000 commercial buildings. The analysis used 1989 CBECS data because the 1992 CBECS data were not yet available at the time the study was initiated. The CBECS data were fed into the Facility Energy Decision Screening (FEDS) system, a building energy simulation program developed by the US Department of Energy`s Pacific Northwest Laboratory, to derive engineering estimates of end-use consumption for each building in the sample. The FEDS estimates were then statistically adjusted to match the total energy consumption for each building. This is the Energy Information Administration`s (EIA) first report on energy end-use consumption in commercial buildings. This report is part of an effort to address customer requests for more information on how energy is used in buildings, which was an overall theme of the 1992 user needs study. The end-use data presented in this report were not available for publication in Commercial Buildings Energy Consumption and Expenditures 1989 (DOE/EIA-0318(89), Washington, DC, April 1992). However, subsequent reports on end-use energy consumption will be part of the Commercial Buildings Energy Consumption and Expenditures series, beginning with a 1992 data report to be published in early 1995.

  4. Prostate Bed Motion During Intensity-Modulated Radiotherapy Treatment

    SciTech Connect (OSTI)

    Klayton, Tracy; Price, Robert; Buyyounouski, Mark K.; Sobczak, Mark; Greenberg, Richard; Li, Jinsheng; Keller, Lanea; Sopka, Dennis; Kutikov, Alexander; Horwitz, Eric M.

    2012-09-01

    Purpose: Conformal radiation therapy in the postprostatectomy setting requires accurate setup and localization of the prostatic fossa. In this series, we report prostate bed localization and motion characteristics, using data collected from implanted radiofrequency transponders. Methods and Materials: The Calypso four-dimensional localization system uses three implanted radiofrequency transponders for daily target localization and real-time tracking throughout a course of radiation therapy. We reviewed the localization and tracking reports for 20 patients who received ultrasonography-guided placement of Calypso transponders within the prostate bed prior to a course of intensity-modulated radiation therapy at Fox Chase Cancer Center. Results: At localization, prostate bed displacement relative to bony anatomy exceeded 5 mm in 9% of fractions in the anterior-posterior (A-P) direction and 21% of fractions in the superior-inferior (S-I) direction. The three-dimensional vector length from skin marks to Calypso alignment exceeded 1 cm in 24% of all 652 fractions with available setup data. During treatment, the target exceeded the 5-mm tracking limit for at least 30 sec in 11% of all fractions, generally in the A-P or S-I direction. In the A-P direction, target motion was twice as likely to move posteriorly, toward the rectum, than anteriorly. Fifteen percent of all treatments were interrupted for repositioning, and 70% of patients were repositioned at least once during their treatment course. Conclusion: Set-up errors and motion of the prostatic fossa during radiotherapy are nontrivial, leading to potential undertreatment of target and excess normal tissue toxicity if not taken into account during treatment planning. Localization and real-time tracking of the prostate bed via implanted Calypso transponders can be used to improve the accuracy of plan delivery.

  5. SU-E-T-409: Intensity Modulated Robotic Radiotherapy

    SciTech Connect (OSTI)

    Wang, B; Jin, L; Li, J; Chen, L; Ma, C; Fan, J; Zhang, C

    2014-06-01

    Purpose: As compared with the IRIS-based models, the MLC-based CyberKnife system allows more efficient treatment delivery due to its improved coverage of large lesions and intensity modulation. The treatment delivery efficiency is mainly determined by the number of selected nodes. This study aimed to demonstrate that relatively small sets of optimally selected nodes could produce high-quality plans. Methods: The full body path of the CyberKnife system consists of 110 nodes, from which we selected various sets for 4 prostate cancer cases using our in-house beamselection software. With the selected nodes we generated IMRT plans using our in-house beamlet-based inverse-planning optimization program. We also produced IMRT plans using the MultiPlan treatment planning system (version 5.0) for the same cases. Furthermore, the nodes selected by MultiPlan were used to produce plans with our own optimization software so that we could compare the quality of the selected sets of nodes. Results: Our beam-selection program selected one node-set for each case, with the number of nodes ranging from 23 to 34. The IMRT plans based on the selected nodes and our in-house optimization program showed adequate target coverage, with favorable critical structure sparing for the cases investigated. Compared with the plans using the nodes selected by MultiPlan, the plans generated with our selected beams provided superior rectum/bladder sparing for 75% of the cases. The plans produced by MultiPlan with various numbers of nodes also suggested that the plan quality was not compromised significantly when the number of nodes was reduced. Conclusion: Our preliminary results showed that with beamletbased planning optimization, one could produce high-quality plans with an optimal set of nodes for MLC-based robotic radiotherapy. Furthermore, our beam-selection strategy could help further improve critical structure sparing.

  6. Intensity Modulated Radiation Therapy With Dose Painting to Treat Rhabdomyosarcoma

    SciTech Connect (OSTI)

    Yang, Joanna C.; Dharmarajan, Kavita V.; Wexler, Leonard H.; La Quaglia, Michael P.; Happersett, Laura; Wolden, Suzanne L.

    2012-11-01

    Purpose: To examine local control and patterns of failure in rhabdomyosarcoma patients treated with intensity modulated radiation therapy (RT) with dose painting (DP-IMRT). Patients and Methods: A total of 41 patients underwent DP-IMRT with chemotherapy for definitive treatment. Nineteen also underwent surgery with or without intraoperative RT. Fifty-six percent had alveolar histologic features. The median interval from beginning chemotherapy to RT was 17 weeks (range, 4-25). Very young children who underwent second-look procedures with or without intraoperative RT received reduced doses of 24-36 Gy in 1.4-1.8-Gy fractions. Young adults received 50.4 Gy to the primary tumor and lower doses of 36 Gy in 1.8-Gy fractions to at-risk lymph node chains. Results: With 22 months of median follow-up, the actuarial local control rate was 90%. Patients aged {<=}7 years who received reduced overall and fractional doses had 100% local control, and young adults had 79% (P=.07) local control. Three local failures were identified in young adults whose primary target volumes had received 50.4 Gy in 1.8-Gy fractions. Conclusions: DP-IMRT with lower fractional and cumulative doses is feasible for very young children after second-look procedures with or without intraoperative RT. DP-IMRT is also feasible in adolescents and young adults with aggressive disease who would benefit from prophylactic RT to high-risk lymph node chains, although dose escalation might be warranted for improved local control. With limited follow-up, it appears that DP-IMRT produces local control rates comparable to those of sequential IMRT in patients with rhabdomyosarcoma.

  7. Ultrasonic Characterization of Surface Modified Layers BRET J. ELKIND, MOSHE ROSEN, and HAYDN N.G. WADLEY

    E-Print Network [OSTI]

    Wadley, Haydn

    and surface modified layers to fulfill the role of sensors in emerging intelligent materials processing

  8. E43revision:2004-03-30modified:2004-03-30 Revised GCH

    E-Print Network [OSTI]

    Shelah, Saharon

    E43revision:2004-03-30modified:2004-03-30 ' & $ % Revised GCH Saharon Shelah March 28, 2004 shelah@math.huji.ac.il The Hebrew University of Jerusalem Rutgers University 1 #12;E43revision:2004-03-30modified:200423) 2 #12;E43revision:2004-03-30modified:2004-03-30 ' & $ % A prelude It is good to start with some

  9. (E8)revision:2001-03-23modified:2001-03-24 Saharon Shelah

    E-Print Network [OSTI]

    Shelah, Saharon

    (E8)revision:2001-03-23modified:2001-03-24 A NOTE SHE8 Saharon Shelah Institute of Mathematics Typeset by AMS-TEX 1 #12;(E8)revision:2001-03-23modified:2001-03-24 2 SAHARON SHELAH Main Results See is free. Remark. The proof works for general classes. #12;(E8)revision:2001-03-23modified:2001

  10. EIS-0463: Amended Notice of Intent To Modify the Scope of the...

    Office of Environmental Management (EM)

    Department of Energy - Presidential Permit Application for Northern Pass Transmission, New Hampshire DOE announces its intent to modify the scope of the Northern Pass...

  11. EIS-0283-S2: Amended Notice of Intent to Modify the Scope of...

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

    S. Department of Energy (DOE) announces its intent to modify the scope of the Surplus Plutonium Disposition Supplemental Environmental Impact Statement and to conduct additional...

  12. Method of producing titanium-modified austenitic steel having improved swelling resistance

    DOE Patents [OSTI]

    Megusar, Janez (Belmont, MA); Grant, Nicholas J. (Winchester, MA)

    1989-01-01

    A process for improving the swelling resistance of a titanium-modified austenitic stainless steel that involves a combination of rapid solidification and dynamic compaction techniques.

  13. Monitoring I/O on Data-Intensive Clusters Visualizing Disk Reads...

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

    Clinton, Mike Mason, Graham Van Heule - HPC 3 1 LA---UR---14---26019 Background Motivation: - IO Intensive Jobs * Large amounts of scientific data 2 Background Motivation: -...

  14. Table 8. Carbon intensity of the economy by State (2000-2011

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

    Carbon intensity of the economy by State (2000-2011)" "metric tons energy-related carbon dioxide per million dollars of GDP" ,,,"Change" ,,,"2000 to 2011"...

  15. Table 7. Carbon intensity of the energy supply by State (2000...

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

    Carbon intensity of the energy supply by State (2000-2011)" "kilograms of energy-related carbon dioxide per million Btu" ,,,"Change" ,,,"2000 to 2011"...

  16. Intense Super-radiant X-rays from a Compact Source using a Nanocathode...

    Office of Scientific and Technical Information (OSTI)

    periodically bunched at the wavelength of interest enabling in-phase super-radiant emission that is far more intense than from unbunched electrons. The periodic bunching is...

  17. Generation of Stable (3+1)-dimensional High-intensity Ultrashort Light Pulses

    SciTech Connect (OSTI)

    Todorov, T. P.; Koprinkov, I. G. [Department of Applied Physics, Technical University of Sofia, 1000 Sofia (Bulgaria); Todorova, M. E. [College of Energetics and Electronics, Technical University of Sofia, 1000 Sofia (Bulgaria); Todorov, M. D. [Faculty of Appl. Math. and Informatics, Technical University of Sofia, 1000 Sofia (Bulgaria)

    2010-11-25

    The spatiotemporal dynamics of high-intensity femtosecond laser pulses is studied within a rigorous physical model. The pulse propagation is described by the nonlinear envelope equation. The propagation and the material equations are solved self-consistently at realistic physical conditions. Self-compression of the pulse around single-cycle regime and dramatic increase of the pulse intensity is found. At certain conditions, the peak intensity, transversal width, time duration, and the spatiotemporal pulse shape remain stable with the propagation of the pulse, resembling a soliton formation process. This, to our knowledge, is the first simulation of high-intensity ultrashort soliton formation dynamics in the (3+1)-dimensional case.

  18. Structure Growth and the CMB in Modified Gravity (MOG)

    E-Print Network [OSTI]

    J. W. Moffat

    2014-09-02

    An important piece of evidence for dark matter is the need to explain the growth of structure from the time of horizon entry and radiation-matter equality to the formation of stars and galaxies. This cannot be explained by using general relativity without dark matter. So far, dark matter particles have not been detected in laboratory measurements or at the LHC. We demonstrate that enhanced structure growth can happen in a modified gravity theory (MOG). The vector field and particle introduced in the theory to explain galaxy and cluster dynamics plays an important role in generating the required structure growth. The particle called the phion (a light hidden photon) is neutral and is a dominant, pressureless component in the MOG Friedmann equations, before the time of decoupling. The dominant energy density of the phion particle in the early universe, generates an explanation for the growth of density perturbations. The angular acoustical power spectrum due to baryon-photon pressure waves is in agreement with the Planck 2013 data. As the universe expands and large scale structures are formed, the density of baryons dominates and the rotation curves of galaxies and the dynamics of clusters are explained in MOG, when the phion particle in the present universe is ultra-light. The matter power spectrum determined by the theory is in agreement with current galaxy redshift surveys.

  19. Radical-cured block copolymer-modified thermosets

    SciTech Connect (OSTI)

    Redline, Erica M.; Francis, Lorraine F.; Bates, Frank S.

    2013-01-10

    Poly(ethylene-alt-propylene)-b-poly(ethylene oxide) (PEP-PEO) diblock copolymers were synthesized and added at 4 wt % to 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane (BisGMA), a monomer that cures using free radical chemistry. In separate experiments, poly(ethylene glycol) dimethacrylate (PEGDMA) was combined as a secondary monomer with BisGMA and the monomers were loaded with 4 wt % PEP-PEO. The diblock copolymers self-assembled into well-dispersed spherical micelles with PEP cores and PEO coronas. No appreciable change in the final extent of cure of the thermosets was caused by the addition of diblock copolymer, except in the case of BisGMA, where the addition of the block copolymer increased extent of cure by 12%. Furthermore, the extent of cure was increased by 29% and 37% with the addition of 25 and 50 wt % PEGDMA, respectively. Elastic modulus and fracture resistance were also determined, and the values indicate that the addition of block copolymers does not significantly toughen the thermoset materials. This finding is surprising when compared with the large increase in fracture resistance seen in block copolymer-modified epoxies, and an explanation is proposed.

  20. Modified Regge Calculus as an Explanation of Dark Matter

    E-Print Network [OSTI]

    Stuckey, W M; Silberstein, Michael

    2015-01-01

    According to modified Regge calculus (MORC), large-scale rarified distributions of matter can lead to perturbative corrections of the corresponding spacetime geometry of general relativity (GR). It is well known in GR that the dynamic mass of the matter generating the exterior Schwarzschild vacuum solution to Einstein's equations can differ from the proper mass of that same matter per the interior solution. For galactic rotation curves and the mass profiles of X-ray clusters, we use MORC to propose that it is precisely this type of mass difference on an enhanced scale that is currently attributed to non-baryonic dark matter. We argue that this same approach is applicable to Regge calculus cosmology and the modeling of anisotropies in the angular power spectrum of the CMB due to acoustic oscillations, so it should be applicable to explaining dark matter phenomena on that scale as well. We account for the value of the dynamic mass by a simple geometric scaling of the proper mass of the baryonic matter in galaxi...

  1. AVLIS modified direct denitration: UO{sub 3} powder evaluation

    SciTech Connect (OSTI)

    Slagle, O.D.; Davis, N.C.; Parchen, L.J.

    1994-02-01

    The evaluation study demonstrated that AVLIS-enriched uranium converted to UO{sub 3} can be used to prepare UO{sub 3} pellets having densities in the range required for commercial power reactor fuel. Specifically, the program has demonstrated that MDD (Modified Direct Denitration)-derived UO{sub 2} powders can be reduced to sinterable UO{sub 2} powder using reduction techniques that allow control of the final powder characteristics; the resulting UO{sub 2} powders can be processed/sintered using standard powder preparation and pellet fabrication techniques to yield pellets with densities greater than 96% TD; pellet microstructures appear similar to those of power reactor fuel, and because of the high final pellet densities, it is expected that they would remain stable during in-reactor operation; the results of the present study confirm the results of a similar study carried out in 1982 (Davis and Griffin 1992). The laboratory processes were selected on the basis that they could be scaled up to standard commercial fuel processing. However, larger scale testing may be required to establish techniques compatible with commercial fuel fabrication techniques.

  2. Gold Binding by Native and Chemically Modified Hops Biomasses

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

    Lpez, M. Laura; Gardea-Torresdey, J. L.; Peralta-Videa, J. R.; de la Rosa, G.; Armendriz, V.; Herrera, I.; Troiani, H.; Henning, J.

    2005-01-01

    Heavy metals from mining, smelting operations and other industrial processing facilities pollute wastewaters worldwide. Extraction of metals from industrial effluents has been widely studied due to the economic advantages and the relative ease of technical implementation. Consequently, the search for new and improved methodologies for the recovery of gold has increased. In this particular research, the use of cone hops biomass ( Humulus lupulus ) was investigated as a new option for gold recovery. The results showed that the gold binding to native hops biomass was pH dependent from pH 2 to pH 6, with a maximum percentage bindingmoreat pH 3. Time dependency studies demonstrated that Au(III) binding to native and modified cone hops biomasses was found to be time independent at pH 2 while at pH 5, it was time dependent. Capacity experiments demonstrated that at pH 2, esterified hops biomass bound 33.4 mg Au/g of biomass, while native and hydrolyzed hops biomasses bound 28.2 and 12.0 mg Au/g of biomass, respectively. However, at pH 5 the binding capacities were 38.9, 37.8 and 11.4 mg of Au per gram of native, esterified and hydrolyzed hops biomasses, respectively. less

  3. A Comparison of Iron and Steel Production Energy Use and Energy Intensity in China and the U.S.

    E-Print Network [OSTI]

    Hasanbeigi, Ali

    2012-01-01

    Intensity GJ/t kgce/t Primary Energy Intensity* GJ/t kgce/tIntensity GJ/t kgce/t Primary Energy Intensity* GJ/t kgce/Scenarios 1, 4 and 6 the primary energy value includes T&D

  4. ISSUANCE 2015-12-02: Energy Conservation Program: Energy Conservation Standards for High-Intensity Discharge Lamps, Final Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Energy Conservation Program: Energy Conservation Standards for High-Intensity Discharge Lamps, Final Determination

  5. 2d-PIC simulation of atomic clusters in intense laser fields F. Greschik and H.-J. Kull,

    E-Print Network [OSTI]

    Kull, Hans-Jrg

    Title page Full title 2d-PIC simulation of atomic clusters in intense laser fields Authors F of atomic clusters in intense laser fields Abstract Collective absorption of intense laser pulses by atomic by electron emission increases as a power law with the laser intensity. The absorbed energy per electron

  6. Title of dissertation: Precision Control of Intense Electron Beams in a Low-Energy Ring

    E-Print Network [OSTI]

    Anlage, Steven

    ABSTRACT Title of dissertation: Precision Control of Intense Electron Beams in a Low-Energy Ring ELECTRON BEAMS IN A LOW-ENERGY RING by Chao Wu Dissertation submitted to the Faculty of the Graduate School of particle accelerators require beams with high intensity and low emittance in a stable fashion. An important

  7. A Computational Model of Knowledge-Intensive Learning and Problem Solving1

    E-Print Network [OSTI]

    Aamodt, Agnar

    1 A Computational Model of Knowledge-Intensive Learning and Problem Solving1 Agnar Aamodt Knowledge. If knowledge-based systems are to become more competent and robust in solving real world problems, they need model - a framework -for knowledge-intensive problem solving and learning from experience. The model has

  8. Second-Best Instruments for Near-Term Climate Policy: Intensity Targets vs. the Safety Valve

    E-Print Network [OSTI]

    Wing, Ian Sue

    Second-Best Instruments for Near-Term Climate Policy: Intensity Targets vs. the Safety Valve Mort Keywords: Uncertainty, climate change, instrument choice, safety valve, intensity target. Abstract Current to be preferred over a safety valve. 1 #12;1. Introduction As many countries prepare to begin their implementation

  9. Storage of water on vegetation under simulated rainfall of varying intensity

    E-Print Network [OSTI]

    Keim, Richard

    Storage of water on vegetation under simulated rainfall of varying intensity R.F. Keim a,*, A Little is understood about how storage of water on forest canopies varies during rainfall, even though storage changes intensity of throughfall and thus affects a variety of hydrological processes

  10. Measurement of proton and anti-proton intensities in the Tevatron Collider

    SciTech Connect (OSTI)

    Stephen Pordes et al.

    2003-06-04

    This paper describes the techniques used to measure the intensities of the proton (p) and anti-proton ({bar p}) beams in the Tevatron collider. The systems provide simultaneous measurements of the intensity of the 36 proton and 36 antiproton bunches and their longitudinal profiles.

  11. Initial ultraviolet-B intensity data at Lawrence Livermore National Laboratory

    SciTech Connect (OSTI)

    Patten, K.O. Jr.; Wuebbles, D.J. [Lawrence Livermore National Lab., CA (United States); Smith, G.J. [New Zealand Inst. for Industrial Research and Development, Lower Hutt (New Zealand)

    1993-10-01

    A measurement of UV-B reaching the ground has been established at the Lawrence Livermore National Laboratory. The instrument is the same as those operated by the National Institute for Water and Atmospheric Research in their network in New Zealand. The wavelength response of the radiometer is similar to the response of human skin to UV-B. Intensity data are collected by averaging meter readings over 10 minutes from 6:00 am to 6:00 pm Pacific Standard Time, then converting to effective UV-B intensity normalized at 310 nm. This report checks the intensities obtained at LLNL from November 1992 to July 1993 against the expected results: Increased solar zenith angle, whether from the daily cycle or from the yearly cycle in solar position, should decrease UV-B intensity at the ground due to increased optical path; and, intervening cloud cover should decrease ground UV-B intensity. Three additional findings are reported here: Maximum UV-B intensity on cloudless days does not always follow a smooth curve, but instead varies either high or low to some extent; Morning UV-B intensities are less than those in the afternoon at comparable solar zenith angles at certain times of year; LLNL wintertime daily-averaged UV-B intensities are somewhat higher than those observed at Auckland, New Zealand in their winter of 1992.

  12. The Effect of Topography on Storm-Track Intensity in a Relatively Simple General Circulation Model

    E-Print Network [OSTI]

    Son, Seok-Woo

    The Effect of Topography on Storm-Track Intensity in a Relatively Simple General Circulation Model The effect of topography on storm-track intensity is examined with a set of primitive equation model flow impinging on the topography. If the background flow consists of a weak double jet, higher

  13. Issues and R&D Required for the Intensity Frontier Accelerators

    SciTech Connect (OSTI)

    Shiltsev, V.; Henderson, S.; Hurh, P.; Kourbanis, I.; Lebedev, V.

    2013-09-26

    Operation, upgrade and development of accelerators for Intensity Frontier face formidable challenges in order to satisfy both the near-term and long-term Particle Physics program. Here we discuss key issues and R&D required for the Intensity Frontier accelerators.

  14. Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse

    E-Print Network [OSTI]

    Umstadter, Donald

    Generation of mega-electron-volt electron beams by an ultrafast intense laser pulse Xiaofang Wang filamentation and beam breakup. These results suggest an approach for generating a beam of femtosecond, Me-intensity lasers has made it pos- sible to study extreme physics on a tabletop. Among the studies, the generation

  15. A hybrid approach to beam angle optimization in intensity-modulated radiation therapy

    E-Print Network [OSTI]

    Bertsimas, Dimitris

    Linear programming Computational experiments a b s t r a c t Intensity-Modulated Radiation Therapy Optimization) is an important problem and is today often based on human experience. In this context, we faceA hybrid approach to beam angle optimization in intensity-modulated radiation therapy D. Bertsimas

  16. Improved Heat Transfer and Performance of High Intensity Combustion Systems for Reformer Furnace Applications

    E-Print Network [OSTI]

    Williams, F. D. M.; Kondratas, H. M.

    1983-01-01

    Developments over the past fifteen years have evolved new short flame, high intensity (1,000,000 BTU/HR/ft3 ) combustion systems for industrial uses. Such systems produce a more uniform and higher heat flux than conventional low intensity systems...

  17. Plasma discreteness eects in the presence of an intense, ultrashort laser pulse

    E-Print Network [OSTI]

    Plasma discreteness eects in the presence of an intense, ultrashort laser pulse V.I. Savchenko, intense laser pulse are investigated. Although, for most plasmas of interest, the damping of the laser pulse is due to collective plasma eects, in certain regimes the energy absorbed in the plasma micro#12

  18. Plasma discreteness effects in the presence of an intense, ultrashort laser pulse

    E-Print Network [OSTI]

    Plasma discreteness effects in the presence of an intense, ultrashort laser pulse V. I. Savchenko irradiated by an ultrashort, intense laser pulse are investigated. Although, for most plasmas of interest, the damping of the laser pulse is due to collective plasma effects, in certain regimes the energy absorbed

  19. Plasma discreteness effects in the presence of an intense, ultrashort laser pulse

    E-Print Network [OSTI]

    Plasma discreteness effects in the presence of an intense, ultrashort laser pulse V.I. Savchenko, intense laser pulse are investigated. Although, for most plasmas of interest, the damping of the laser pulse is due to collective plasma effects, in certain regimes the energy absorbed in the plasma

  20. Soil protozoa--An intensive study of population dynamics and community structure in an upland grassland

    E-Print Network [OSTI]

    Soil protozoa--An intensive study of population dynamics and community structure in an upland intensive investigation of soil protozoan diversity sponsored by the Natural Environment Research Council within the context of the fractal character of the soil. We developed methods for estimating

  1. Molecular Dynamics of Methylamine, Methanol, and Methyl Fluoride Cations in Intense 7 Micron Laser Fields

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    Molecular Dynamics of Methylamine, Methanol, and Methyl Fluoride Cations in Intense 7 Micron Laser of methylamine (CH3NH2 + ), methanol (CH3OH+ ), and methyl fluoride (CH3F+ ) cations by short, intense laser 7 m laser pulses. This work is motivated by recent studies of methanol cations by Yamanouchi and co

  2. The Kuznets-Kaldor-Puzzle and Neutral Cross-Capital-Intensity

    E-Print Network [OSTI]

    Gting, Ralf Hartmut

    The Kuznets-Kaldor-Puzzle and Neutral Cross-Capital-Intensity Structural Change by Denis Stijepic://www.fernuni-hagen.de/ls_wagner/en/ #12;The Kuznets-Kaldor-Puzzle and Neutral Cross- Capital-Intensity Structural Change* Denis Stijepic The Kuznets-Kaldor stylized facts are one of the most striking empirical observations about the development

  3. Light intensity, prey detection and foraging mechanisms of age 0 year yellow perch

    E-Print Network [OSTI]

    Mensinger, Allen F.

    Light intensity, prey detection and foraging mechanisms of age 0 year yellow perch H. E. RICHMOND feeding trials at varying light intensities. Perch were highly effective predators and captured Daphnia pulicaria with 94% overall foraging success at light levels ranging from 0 to 3400lx. Maximum average

  4. 28th International Cosmic Ray Conference 4041 Long-Term Cosmic Ray Intensities: Physical Reconstruc-

    E-Print Network [OSTI]

    Usoskin, Ilya G.

    model of the heliosphere, we calculate the expected differential spectra and integral intensity of galactic cosmic rays at the Earth's orbit since 1610. The calculated cosmic ray integral intensity. (2000) have recently calculated the open solar magnetic flux for the last 400 years from sunspot data

  5. Vasco: A Visual Approach to Explore Object Churn in Framework-intensive Applications

    E-Print Network [OSTI]

    Dufour, Bruno

    Vasco: A Visual Approach to Explore Object Churn in Framework-intensive Applications Fleur Duseau,dufour,sahraouh}@iro.umontreal.ca Abstract--Bloat, and particularly object churn, is a common performance problem in framework-intensive applications. Ob- ject churn consists of an excessive use of temporary objects. Identifying and understanding

  6. U.S. Greenhouse Gas Intensity and the Global Climate Change Initiative (released in AEO2005)

    Reports and Publications (EIA)

    2005-01-01

    On February 14, 2002, President Bush announced the Administrations Global Climate Change Initiative. A key goal of the Climate Change Initiative is to reduce U.S. greenhouse gas intensity by 18% over the 2002 to 2012 time frame. For the purposes of the initiative, greenhouse gas intensity is defined as the ratio of total U.S. greenhouse gas emissions to economic output.

  7. Electrochemical Control of the Time-Dependent Intensity Fluctuations in Surface-Enhanced Raman Scattering (SERS)

    E-Print Network [OSTI]

    Brolo, Alexandre G.

    in surface-enhanced Raman scattering (SERS) intensities were recorded from a roughened silver electrode the applied potential. The potential-controlled distribution of SERS intensities was interpreted by considering the modulation of the surface coverage of the adsorbed dye by the interfacial electric field

  8. Development status of triple-junction solar cells optimized for low intensity low temperature applications

    E-Print Network [OSTI]

    Development status of triple-junction solar cells optimized for low intensity low temperature triple-junction solar cells manufactured by AZUR SPACE Solar Power GmbH under low intensity low unusable for deep space missions. Fig. 1: Example of a flat spot effect present in a triple- junction solar

  9. Oecologia (2000) 124:270279 Springer-Verlag 2000 Abstract Disturbance frequency, intensity, and areal ex-

    E-Print Network [OSTI]

    McCabe, Declan

    2000-01-01

    Oecologia (2000) 124:270279 Springer-Verlag 2000 Abstract Disturbance frequency, intensity The intensity, frequency, and area of disturbance may de- termine the abundance and species richness of an assem for recoloniza- tion. If disturbance frequency is greater than the rate of competitive exclusion, diversity may

  10. Energy Policy 35 (2007) 52675286 The implications of the historical decline in US energy intensity

    E-Print Network [OSTI]

    2007-01-01

    Energy Policy 35 (2007) 52675286 The implications of the historical decline in US energy intensity for long-run CO2 emission projections Ian Sue Winga,, Richard S. Eckausb a Center for Energy 2007 Abstract This paper analyzes the influence of the long-run decline in US energy intensity

  11. Investigation of flow modifying tools for the continuous unloading of wet-gas wells

    E-Print Network [OSTI]

    Ali, Ahsan Jawaid

    2003-01-01

    patented vortex flow modifier to lift liquids from low rate (stripper) gas wells. Vortex Flow LLC has developed a flow modifying tool using the patented EcoVeyor technology developed by EcoTech. This technology has been used successfully for almost a...

  12. Test-Suite Reduction and Prioritization for Modified Condition/Decision Coverage

    E-Print Network [OSTI]

    Harrold, Mary Jean

    Test-Suite Reduction and Prioritization for Modified Condition/Decision Coverage James A. Jones (MC/DC) adequate. Despite its cost, there is evidence that MC/DC is an effective verification technique, and can help to uncover safety faults. As the software is modified and new test cases are added

  13. Test-Suite Reduction and Prioritization for Modified Condition/Decision Coverage

    E-Print Network [OSTI]

    Harrold, Mary Jean

    Test-Suite Reduction and Prioritization for Modified Condition/Decision Coverage James A. Jones condition/decision coverage (MC/DC) adequate. Despite its cost, there is evidence that MC/DC is an effective verification technique and can help to uncover safety faults. As the software is modified and new test cases

  14. Biosensors and Bioelectronics 22 (2007) 26362642 Organophosphorus hydrolase multilayer modified microcantilevers

    E-Print Network [OSTI]

    Chen, Wilfred

    2007-01-01

    Biosensors and Bioelectronics 22 (2007) 26362642 Organophosphorus hydrolase multilayer modified Abstract We report a biosensor based on organophosphorus hydrolase (OPH) multilayer modified biosensors based on pH modulation. There was a good intra-sensor and an acceptable inter

  15. IDS120j WITHOUT RESISTIVE MAGNETS MODIFYING Hg MODULE ( NEW SH#1 REGION + Hg POOL LENGTH)

    E-Print Network [OSTI]

    McDonald, Kirk

    IDS120j WITHOUT RESISTIVE MAGNETS MODIFYING Hg MODULE ( NEW SH#1 REGION + Hg POOL LENGTH) Nicholas CRYO#1 WAS DECIDED DURING THE LAST MEETING AND AN EXTENSION OF THE Hg POOL UPSTREAM UP TO ~ - 100 cm FROM SIMULATIONS WITH MODIFIED Hg POOL AND SH#1 REGION

  16. 496revision:1995-12-25modified:1995-12-26 "Menas' Result is Best Possible"

    E-Print Network [OSTI]

    Shelah, Saharon

    496revision:1995-12-25modified:1995-12-26 "Menas' Result is Best Possible" by Arthur W. Apter Brunswick, New Jersey 08904 December 11, 1995 Abstract: Generalizing some earlier techniques due supporting this research. 1 #12;496revision:1995-12-25modified:1995-12-26 §0 Introduction and Preliminaries

  17. (456)revision:1995-09-23modified:1995-09-23 UNIVERSAL IN (< )-STABLE

    E-Print Network [OSTI]

    Shelah, Saharon

    (456)revision:1995-09-23modified:1995-09-23 UNIVERSAL IN ( Science Foundation; Pub. No.456 Typeset by AMS-TEX 1 #12;(456)revision:1995-09-23modified:1995-09-23 2]. More results in these directions may be found in [Sh 457], [Sh 500]. #12;(456)revision:1995

  18. 3D MEMS Simulation Modeling Using Modified Nodal Analysis J. V. Clark, N. Zhou, D. Bindel,

    E-Print Network [OSTI]

    California at Berkeley, University of

    3D MEMS Simulation Modeling Using Modified Nodal Analysis J. V. Clark, N. Zhou, D. Bindel, L, and experimental verification of several MEMS devices are presented. Simulated results include 3D mode analysis. To simulate the performance of these MEMS devices a modified nodal analysis approach is used to formulate

  19. Chromate transport through columns packed with surfactant-modified zeolite/zero valent iron pellets

    E-Print Network [OSTI]

    Li, Zhaohui

    Chromate transport through columns packed with surfactant-modified zeolite/zero valent iron pellets Chromate transport through columns packed with zeolite/zero valent iron (Z/ZVI) pellets, either untreated originated from chromate sorption onto the HDTMA modified Z/ZVI pellets. Due to dual porosity, the presence

  20. Decline of Birds in a Human Modified Coastal Dune Forest Landscape in South Africa

    E-Print Network [OSTI]

    Pretoria, University of

    @zoology.up.ac.za Introduction Coastal dune forest is one of South Africa's rarest vegetation types; restricted to the easternDecline of Birds in a Human Modified Coastal Dune Forest Landscape in South Africa Morgan J modified coastal dune forest landscape in northern KwaZulu-Natal, South Africa. However, occurrence does

  1. MODELLING MODIFIED ATMOSPHERE PACKAGING FOR FRUITS AND VEGETABLES USING MEMBRANE SYSTEMS

    E-Print Network [OSTI]

    Hinze, Thomas

    of polymeric film in or- der to modify the O2 and CO2 concentrations inside the package, reducing metabolic are not fully under- stood. As examples we can refer to the little knowl- edge about the effect of CO2MODELLING MODIFIED ATMOSPHERE PACKAGING FOR FRUITS AND VEGETABLES USING MEMBRANE SYSTEMS Gabi

  2. Elastin protein levels are a vital modifier affecting normal lung development and susceptibility to emphysema

    E-Print Network [OSTI]

    Mecham, Robert

    Elastin protein levels are a vital modifier affecting normal lung development and susceptibility modifier affecting normal lung development and susceptibility to emphysema. Am J Physiol Lung Cell Mol-induced emphysema is highly variable, and numerous genetic and environmental factors are thought to mitigate lung

  3. Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jrgen

    Modified Fresnel zone plates with sharp Gaussian focal spots Qing Cao and Jurgen Jahns Traditional Fresnel zone plates (TFZPs) and photon sieves [1, 2, 3] can be used for the focusing and imaging of soft x.e. a modified Fresnel zone plate, MFZP) can realized the same functions as a photon sieve. In particular, we

  4. Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns

    E-Print Network [OSTI]

    Jahns, Jrgen

    Modified composite Fresnel zone plates with high numerical apertures Qing Cao and Jurgen Jahns Traditional Fresnel zone plates (TFZPs) can be used for the focusing and imaging of soft x-rays and EUV proposed the modified Fresnel zone plates that can produce sharp Gaussian focal spots (we call them

  5. Modified Fresnel computer-generated hologram directly recorded by multiple-viewpoint projections

    E-Print Network [OSTI]

    Rosen, Joseph

    Modified Fresnel computer-generated hologram directly recorded by multiple-viewpoint projections February 2008 An efficient method for obtaining modified Fresnel holograms of real existing three, this one is able to calculate the Fresnel hologram of the 3-D scene directly rather than calculating

  6. Water Infiltration in Layered Soils with Air Entrapment: Modified Green-Ampt

    E-Print Network [OSTI]

    Zhan, Hongbin

    . This study proposed a modified Green-Ampt model (MGAM) to simulate water infiltration in layered soilsWater Infiltration in Layered Soils with Air Entrapment: Modified Green-Ampt Model and Experimental-phase (gaseous and liquid phase) flow model to describe water infiltration in layered soils with air entrap- ment

  7. Solid State Ionics 111 (1998) 117123 Composite polymer electrolytes using surface-modified fumed

    E-Print Network [OSTI]

    Raghavan, Srinivasa

    1998-01-01

    Solid State Ionics 111 (1998) 117123 Composite polymer electrolytes using surface-modified fumed April 1998 Abstract We report results from our studies on composite polymer electrolytes based on novel surface-modified fumed silicas. The electrolytes were prepared by dispersing fumed silica in a matrix

  8. Using UML in Architecture-Level Modifiability Analysis Nico Lassing, Daan Rijsenbrij and Hans van Vliet

    E-Print Network [OSTI]

    van Vliet, Hans

    Using UML in Architecture-Level Modifiability Analysis Nico Lassing, Daan Rijsenbrij and Hans van architecture-level modifiability analysis of business information systems, we use architectural views to determine and express the effect of change scenarios. We distinguish four architectural views. We used

  9. 96 Journal of Student Research in Environmental Science at Appalachian Genetically Modified Maize (Bt corn) and

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    doses for long periods. Introduction Genetically Modified Organisms (GMO), are or- ganisms that have been genetically modified to increase crop yields and/or crop quality [1]. Varieties of GMO are still controversial. This review will focus on the studied effects of specific GMO strands of maize MON

  10. Modified Hubble law, the time-varying Hubble parameter and the problem of dark energy

    E-Print Network [OSTI]

    Jian-Miin Liu

    2005-11-14

    In the framework of the solvable model of cosmology constructed in the Earth-related coordinate system, we derive the modified Hubble law. This law carries the slowly time-varying Hubble parameter. The modified Hubble law eliminates the need for dark energy.

  11. Modified SBA-15 as the carrier for metoprolol and papaverine: Adsorption and release study

    SciTech Connect (OSTI)

    Moritz, MichaL [Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznan (Poland); Laniecki, Marek, E-mail: laniecki@amu.edu.pl [Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznan (Poland)

    2011-07-15

    A series of modified SBA-15 materials were applied in drug delivery systems. The internal surface of siliceous hexagonal structure of SBA-15 was modified with different amount of (3-mercaptopropyl)trimethoxysilane (MPTMS) and oxidized in the presence of hydrogen peroxide. The sulfonated material was loaded with metoprolol tartrate or papaverine hydrochloride. Both drugs indicated strong chemical interaction with modified mesoporous surface. The characteristic of the obtained materials was performed with XRD and DRUV-vis spectrometry, themogravimetry and nitrogen adsorption (BET) measurements. The obtained results show that modification of the mesoporous materials leads towards significant decrease of the drug delivery rate. - Graphical abstract: XRD and DSC of the -SO{sub 3}H modified SBA-15 loaded with metoprolol. Highlights: > Modification of SBA-15 internal channels with SO{sub 3}H groups. > Adsorption of metoprolol and papaverine on modified SBA-15. > Uniform and homogeneous distribution of the drugs inside the mesoporous structure of SBA-15. > Release of the supported drugs.

  12. FINAL FOCUS ION BEAM INTENSITY FROM TUNGSTEN FOIL CALORIMETER AND SCINTILLATOR IN NDCX-I

    SciTech Connect (OSTI)

    Lidia, S.M.; Bieniosek, F.; Henestroza, E.; Ni, P.; Seidl, P.

    2010-04-30

    Laboratory high energy density experiments using ion beam drivers rely upon the delivery of high-current, high-brightness ion beams with high peak intensity onto targets. Solid-state scintillators are typically used to measure the ion beam spatial profile but they display dose-dependent degradation and aging effects. These effects produce uncertainties and limit the accuracy of measuring peak beam intensities delivered to the target. For beam tuning and characterizing the incident beam intensity, we have developed a cross-calibrating diagnostic suite that extends the upper limit of measurable peak intensity dynamic range. Absolute intensity calibration is obtained with a 3 {micro}m thick tungsten foil calorimeter and streak spectrometer. We present experimental evidence for peak intensity measures in excess of 400 kW/cm{sup 2} using a 0.3 MV, 25 mA, 5-20 {micro}sec K{sup +1} beam. Radiative models and thermal diffusion effects are discussed because they affect temporal and spatial resolution of beam intensity profiles.

  13. A sensitivity study of the thermodynamic environment on GFDL model hurricane intensity: Implications for global warming

    SciTech Connect (OSTI)

    Shen, W.; Tuleya, R.E.; Ginis, I.

    2000-01-01

    In this study, the effect of thermodynamic environmental changes on hurricane intensity is extensively investigated with the National Oceanic and Atmospheric Administration Geophysical Fluid Dynamics Laboratory hurricane model for a suite of experiments with different initial upper-tropospheric temperature anomalies up to {+-}4 C and sea surface temperatures ranging from 26 to 31 C given the same relative humidity profile. The results indicate that stabilization in the environmental atmosphere and sea surface temperature (SST) increase cause opposing effects on hurricane intensity. The offsetting relationship between the effects of atmospheric stability increase (decrease) and SST increase (decrease) is monotonic and systematic in the parameter space. This implies that hurricane intensity increase due to a possible global warming associated with increased CO{sub 2} is considerably smaller than that expected from warming of the oceanic waters alone. The results also indicate that the intensity of stronger (weaker) hurricanes is more (less) sensitive to atmospheric stability and SST changes. The model-attained hurricane intensity is found to be well correlated with the maximum surface evaporation and the large-scale environmental convective available potential energy. The model-attained hurricane intensity if highly correlated with the energy available from wet-adiabatic ascent near the eyewall relative to a reference sounding in the undisturbed environment for all the experiments. Coupled hurricane-ocean experiments show that hurricane intensity becomes less sensitive to atmospheric stability and SST changes since the ocean coupling causes larger (smaller) intensity reduction for stronger (weaker) hurricanes. This implies less increase of hurricane intensity related to a possible global warming due to increased CO{sub 2}.

  14. Intense terahertz emission from relativistic circularly polarized laser pulses interaction with overdense plasmas

    SciTech Connect (OSTI)

    Chen, Zi-Yu; Li, Xiao-Ya [National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 (China)] [National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900 (China); Yu, Wei [Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)] [Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)

    2013-10-15

    During the interaction of a relativistic circularly polarized laser pulse with an overdense plasma target, the longitudinal motion of bunches of electrons under the action of light pressure and electrostatic restore force can emit intense terahertz (THz) pulses. This mechanism allows high pump laser intensity and large electron number participating in the emission. Two-dimensional particle-in-cell simulations are carried out to investigate the THz emission. The results suggest that such a source can produce remarkably intense THz pulses with energy of several mJ/sr and power of tens of gigawatts, which could find applications in nonlinear studies and relativistic laser-plasma interaction diagnostics.

  15. Prospects for clustering and lensing measurements with forthcoming intensity mapping and optical surveys

    E-Print Network [OSTI]

    Pourtsidou, Alkistis; Crittenden, Robert; Metcalf, R Benton

    2015-01-01

    We explore the potential of using intensity mapping surveys (MeerKAT, SKA) and optical galaxy surveys (DES, LSST) to detect HI clustering and weak gravitational lensing of 21cm emission in auto- and cross-correlation. Our forecasts show that high precision measurements of the clustering and lensing signals can be made in the near future using the intensity mapping technique. Such studies can be used to test the intensity mapping method, and constrain parameters such as the HI density $\\Omega_{\\rm HI}$, the HI bias $b_{\\rm HI}$ and the galaxy-HI correlation coefficient $r_{\\rm HI-g}$.

  16. NucleicAcids Research, 1995, Vol. 23, No. 7 1231-1238 Preparation of probe-modified RNA with

    E-Print Network [OSTI]

    Church, George M.

    NucleicAcids Research, 1995, Vol. 23, No. 7 1231-1238 Preparation of probe-modified RNA with 5, USA Received November 7, 1994; Revised and Accepted February 13, 1995 ABSTRACT We report a modified

  17. T-606: Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data

    Broader source: Energy.gov [DOE]

    Sun Java System Access Manager Lets Remote Users Partially Modify Data and Remote Authenticated Users Partially Access Data.

  18. Manpower planning and cycle-time reduction of a labor-intensive assembly line

    E-Print Network [OSTI]

    Oh, Shao Chong

    2010-01-01

    The demand for Gas Lift Mandrels(GLM) in the oil and gas industry is expected to increase over the next few years, requiring Schlumberger's GLM assembly line to increase their manufacturing capacity. Given the labor-intensive ...

  19. Note: Design and initial results of a multi-pulsed intense electron beam source

    SciTech Connect (OSTI)

    Xia, L., E-mail: xialiansheng@caep.cn; Zhang, H.; Yang, A.; Shen, Y.; Wang, W.; Wen, L.; Zhang, K.; Shi, J.; Zhang, L.; Deng, J. [Institute of Fluid Physics, CAEP, Mianyang 621900 (China)

    2014-06-15

    A multi-pulsed intense electron beam source is introduced, including the design and the initial experimental results. The source can generate a burst of three pulses of intense electron beams with energy of 23 MeV and beam intensities of around 2.5 kA. An inductive adder is chosen to generate the pulsed diode voltages and a dispenser cathode is chosen to emit electron beams. The test results indicate that the design of the source is reliable. The multi-pulsed diode voltage is up to 2.5 MV and the beam intensities are more than 2 kA at the exit of the source with small variation.

  20. Energy-Intensive Processes Portfolio: Addressing Key Energy Challenges Across U.S. Industry

    SciTech Connect (OSTI)

    2011-03-07

    AMO is developing advanced technologies that cut energy use and carbon emissions in some of the most energy-intensive processes within U.S. manufacturing. The brochure describes the AMO R&D projects that address these challenges.

  1. Laser enhanced high-intensity focused ultrasound thrombolysis: An in vitro study

    E-Print Network [OSTI]

    Cui, Huizhong; Yang, Xinmai

    2013-01-17

    Laser-enhanced thrombolysis by high intensity focused ultrasound (HIFU) treatment was studied in vitro with bovine blood clots. To achieve laser-enhanced thrombolysis, laser light was employed to illuminate the sample concurrently with HIFU...

  2. Vehicle Technologies Office Merit Review 2015: Magnesium-Intensive Front End Sub-Structure Development

    Broader source: Energy.gov [DOE]

    Presentation given by USAMP at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about magnesium-intensive front end sub...

  3. Hybrid intensity and time-of-flight signal processing techniques for intelligent distance sensors

    E-Print Network [OSTI]

    Hiromi, Itariu

    2013-01-01

    With the advent of "smart" consumer electronics, distance sensing is an increasingly important field in optical sensing. A novel approach to active infrared(IR) 1D distance sensing is proposed, employing both intensity and ...

  4. Determinants of energy intensity in industrialized countries : a comparison of China and India

    E-Print Network [OSTI]

    Huang, Feiya

    2006-01-01

    The amount of final energy per unit of economic output (usually in terms of gross domestic product, or GDP), known as energy intensity, is often used to measure the effectiveness of energy use and the consumption patterns ...

  5. Correlation of intensity fluctuations in beams generated by quasi-homogeneous sources

    E-Print Network [OSTI]

    Visser, Taco D.

    of intensity fluctuations (the Hanbury BrownTwiss effect) that occurs in electromagnetic beams.1364/JOSAA.31.002152 1. INTRODUCTION In the mid-1950s Hanbury Brown and Twiss (HBT) deter- mined the angular

  6. Generation and search of axion-like light particle using intense crystalline field

    E-Print Network [OSTI]

    Wei Liao

    2011-07-19

    Intense electric field $\\sim 10^{10}-10^{11}$ V/cm in crystal has been known for a long time and has wide applications. We study the conversion of axion-like light particle and photon in the intense electric field in crystal. We find that the conversion of axion-like particle and photon happens for energy larger than keV range. We propose search of axion-like light particle using the intense crystalline field. We discuss the solar axion search experiment and a variety of shining-through-wall experiment using crystalline field. Due to the intense crystalline field which corresponds to magnetic field $\\sim 10^4-10^5$ Tesla these experiments are very interesting. In particular these experiments can probe the mass range of axion-like particle from eV to keV.

  7. [19] OSCILLATIONMETHOD 211 breaks down, and the most intense reflections will be systematically un-

    E-Print Network [OSTI]

    Harrison, Stephen C.

    intensities from crystals of large unit cell. The problems imposed by the need to analyze the digitized data of two perpendicular bent mirrors, providing glancing-angle reflection in horizontal and vertical planes

  8. Bulk ablation of soft tissue with intense ultrasound: Modeling and experiments

    E-Print Network [OSTI]

    Mast, T. Douglas

    , the thermal de- struction of large tissue volumes is most commonly per- formed using radiofrequency RF ablation electromagnetic radiation in the 400700 kHz range .3,4 Intense ultrasound treatment, first

  9. Physics of Neutralization of Intense Charged Particle Beam Pulses by a Background Plasma

    E-Print Network [OSTI]

    Kaganovich, I.D.

    2010-01-01

    2002). J.D. Lawson, Physics of Charged Particles Beams, (B. Kusse, J. Moschella, Physics of Fluids 30 , 245 (1987).Davidson and H. Qin, Physics of Intense Charged Particle

  10. The emergence of negotiated family care in intensive care - a grounded theory approach

    E-Print Network [OSTI]

    Kean, Susanne

    2007-01-01

    This thesis describes a qualitative enquiry into the experiences of families visiting an adult intensive care unit (ICU) during a critical illness of a family member and nurses perceptions of families in this environment. ...

  11. Apparatus and process for active pulse intensity control of laser beam

    DOE Patents [OSTI]

    Wilcox, Russell B. (Oakland, CA)

    1992-01-01

    An optically controlled laser pulse energy control apparatus and process is disclosed wherein variations in the energy of a portion of the laser beam are used to vary the resistance of a photodetector such as a photoresistor through which a control voltage is fed to a light intensity controlling device through which a second portion of the laser beam passes. Light attenuation means are provided to vary the intensity of the laser light used to control the resistance of the photodetector. An optical delay path is provided through which the second portion of the beam travels before reaching the light intensity controlling device. The control voltage is supplied by a variable power supply. The apparatus may be tuned to properly attenuate the laser beam passing through the intensity controlling device by adjusting the power supply, the optical delay path, or the light attenuating means.

  12. Multi-objective fuel policies: Renewable fuel standards versus Fuel greenhouse gas intensity standards

    E-Print Network [OSTI]

    Rajagopal, Deepak

    2010-01-01

    of both biofuel and fossil fuel and thereby increases totalof proof to show world fossil fuel price decreases under anyGHG intensity among fossil fuels. We ?nd that the relative

  13. Extreme rainfall intensities and long-term rainfall risk from tropical cyclones

    E-Print Network [OSTI]

    Langousis, Andreas, 1981-

    2009-01-01

    We develop a methodology for the frequency of extreme rainfall intensities caused by tropical cyclones (TCs) in coastal areas. The mean rainfall field associated with a TC with maximum tangential wind speed Vmax, radius ...

  14. Energy Intensity Changes by Sector, 1985-2011 Alternative Measures by Type of Energy

    Broader source: Energy.gov [DOE]

    Further insight with regard to the comparison of intensity changes by sector can be gained by looking at how they differ with respect to different definitions of energy use. Source energy...

  15. Zone folding effect in Raman G-band intensity of twisted bilayer graphene

    E-Print Network [OSTI]

    Dresselhaus, Mildred

    The G-band Raman intensity is calculated for twisted bilayer graphene as a function of laser excitation energy based on the extended tight binding method. Here we explicitly consider the electron-photon and electron-phonon ...

  16. Network of Spaces and Interaction-Related Behaviors in Adult Intensive Care Units

    E-Print Network [OSTI]

    Rashid, Mahbub; Boyle, Diane K.; Crosser, Michael

    2014-12-01

    Using three spatial network measures of space syntax, this correlational study describes four interaction-related behaviors among three groups of users in relation to visibility and accessibility of spaces in four adult intensive care units (ICUs...

  17. Energy prices and energy intensity in China : a structural decomposition analysis and econometrics study

    E-Print Network [OSTI]

    Shi, Xiaoyu

    2006-01-01

    Since the start of its economic reforms in 1978, China's energy prices relative to other prices have increased. At the same time, its energy intensity, i.e., energy consumption per unit of Gross Domestic Product (GDP), has ...

  18. Intensity-resolved Above Threshold Ionization Yields of Atoms with Ultrashort Laser Pulses

    E-Print Network [OSTI]

    Hart, Nathan Andrew

    2012-10-19

    The above threshold ionization (ATI) spectra provide a diversity of information about a laser-atom ionization process such as laser intensity, pulse duration, carrier envelope phase, and atomic energy level spacing. However, the spatial distribution...

  19. Photoionization dynamics and angular squeezing phenomenon in intense long-wavelength laser fields

    E-Print Network [OSTI]

    Chu, Shih-I; Zhou, Zhongyuan

    2011-03-11

    We develop a coherent-state Ehrenfest trajectory (CSET) approach for the nonperturbative study of full electronic and nuclear dynamics of molecules interacting with intense laser fields. In this approach, electrons and ...

  20. Generation of Ultra-intense Gamma-ray Train by QED Harmonics

    E-Print Network [OSTI]

    Liu, Chen; Zhang, Xiaomei; Ji, Liangliang; Wang, Wenpeng; Xu, Jiancai; Zhao, Xueyan; Yi, Longqing; Shi, Yin; Zhang, Lingang; Xu, Tongjun; Pei, Zhikun; Xu, Zhizhan

    2015-01-01

    When laser intensity exceeds 10^22W/cm^2, photons with energy above MeV can be generated from high-order harmonics process in the laser-plasma interaction. We find that under such laser intensity, QED effect plays a dominating role in the radiation pattern. Contrast to the gas and relativistic HHG processes, both the occurrence and energy of gamma-ray emission produced by QED harmonics are random and QED harmonics are usually not coherent, while the property of high intensity and ultra-short duration is conserved. Our simulation shows that the period of gamma-ray train is half of the laser period and the peak intensity is 1.4e22W/cm^2. This new harmonic production with QED effects are crucial to light-matter interaction in strong field and can be verified in experiments by 10PW laser facilities in the near future.

  1. Energy prices and energy intensity in China : a structural decomposition analysis and econometric study

    E-Print Network [OSTI]

    Shi, Xiaoyu, M.C.P. Massachusetts Institute of Technology

    2005-01-01

    Since the start of its economic reforms in 1978, China's energy prices relative to other prices have increased. At the same time, its energy intensity, i.e., physical energy consumption per unit of Gross Domestic Product ...

  2. Sensitivity of Tropical Cyclone Intensity to Ventilation in an Axisymmetric Model

    E-Print Network [OSTI]

    Tang, Brian

    The sensitivity of tropical cyclone intensity to ventilation of cooler, drier air into the inner core is examined using an axisymmetric tropical cyclone model with parameterized ventilation. Sufficiently strong ventilation ...

  3. Sub-Orbital Scale variations in the Intensity of the Arabian Sea Monsoon

    E-Print Network [OSTI]

    Ivanochko, Tara S

    A high-resolution multi-proxy reconstruction of the Arabian Sea Summer Monsoon (ASSM) intensity over the past 90,000 years has been determined using two marine sediment cores: one from the Somali margin and one from the ...

  4. Gregorian optical system with non-linear optical technology for protection against intense optical transients

    DOE Patents [OSTI]

    Ackermann, Mark R. (Albuquerque, NM); Diels, Jean-Claude M. (Albuquerque, NM)

    2007-06-26

    An optical system comprising a concave primary mirror reflects light through an intermediate focus to a secondary mirror. The secondary mirror re-focuses the image to a final image plane. Optical limiter material is placed near the intermediate focus to optically limit the intensity of light so that downstream components of the optical system are protected from intense optical transients. Additional lenses before and/or after the intermediate focus correct optical aberrations.

  5. Operation of the intensity monitors in beam transport lines at Fermilab during Run II

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

    Crisp, J.; Fellenz, B.; Fitzgerald, J.; Heikkinen, D.; Ibrahim, M. A.

    2011-10-06

    The intensity of charged particle beams at Fermilab must be kept within pre-determined safety and operational envelopes in part by assuring all beam within a few percent has been transported from any source to destination. Beam instensity monitors with toroidial pickups provide such beam intensity measurements in the transport lines between accelerators at FNAL. With Run II, much effort was made to continually improve the resolution and accuracy of the system.

  6. Nighttime atmospheric stability changes and their effects on the temporal intensity of a mesoscale convective complex

    E-Print Network [OSTI]

    Hovis, Jeffrey Scott

    1988-01-01

    NIGHTTIME ATMOSPHERIC STABILITY CHANGES AND THEIR EFFECTS ON THE TEMPORAL INTENSITY OF A MESOSCALE CONVECTIVE COMPLEX A Thesis JEFFREY SCOTT HOVIS Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1988 Major Subject: Meteorology NIGHTTIME ATMOSPHERIC STABILITY CHANGES AND THEIR EFFECTS ON THE TEMPORAL INTENSITY OF A MESOSCALE CONVECTIVE COMPLEX A Thesis JEFFREY SCOTT HOVIS Approved as to style...

  7. Nonlinear dynamics of ionization stabilization of atoms in intense laser fields

    E-Print Network [OSTI]

    Michael Norman; C. Chandre; T. Uzer; Peijie Wang

    2014-12-06

    We revisit the stabilization of ionization of atoms subjected to a superintense laser pulse using nonlinear dynamics. We provide an explanation for the lack of complete ionization at high intensity and for the decrease of the ionization probability as intensity is increased. We investigate the role of each part of the laser pulse (ramp-up, plateau, ramp-down) in this process. We emphasize the role of the choice for the ionization criterion, energy versus distance criterion.

  8. Measuring the impact of an intensive commodity price risk management education program on agricultural producers

    E-Print Network [OSTI]

    McCorkle, Dean Alexander

    2005-08-29

    -1 MEASURING THE IMPACT OF AN INTENSIVE COMMODITY PRICE RISK MANAGEMENT EDUCATION PROGRAM ON AGRICULTURAL PRODUCERS A Dissertation by DEAN ALEXANDER MCCORKLE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of DOCTOR OF PHILOSOPHY May 2005 Major Subject: Agricultural Education MEASURING THE IMPACT OF AN INTENSIVE COMMODITY PRICE RISK MANAGEMENT EDUCATION PROGRAM ON AGRICULTURAL PRODUCERS A Dissertation by DEAN ALEXANDER MCCORKLE...

  9. IDS120hm GEOMETRY WITH MODIFIED Hg POOL VESSEL SIMULATIONS FOR 60% W + 40% He SHIELDING WITHOUT/WITH

    E-Print Network [OSTI]

    McDonald, Kirk

    IDS120hm GEOMETRY WITH MODIFIED Hg POOL VESSEL SIMULATIONS FOR 60% W + 40% He SHIELDING WITHOUT: (m IS FOR) modified Hg pool vessel IN IDS120h. # WITHOUT AND WITH Hg IN THE POOL SIMULATIONS Hg POOL VESSEL AND SHIFTED Be WIDOW FROM 600 cm (0.6 cm THICK) TO 300 cm (1 cm THICK). MODIFIED Hg

  10. IDS120h GEOMETRY WITH MODIFIED Hg POOL VESSEL SIMULATIONS FOR 60% W + 40% He SHIELDING (P12 'POINT') WITH

    E-Print Network [OSTI]

    McDonald, Kirk

    IDS120h GEOMETRY WITH MODIFIED Hg POOL VESSEL SIMULATIONS FOR 60% W + 40% He SHIELDING (P12 'POINT POWER DISTRIBUTION. Nicholas Souchlas, PBL (1/24/2012) 1 #12;IDS120hm: (m IS FOR) modified Hg pool 'POINT'). >GAUSSIAN PROFILE: x = y = 0.12 cm. 2 #12;3 IDS120hm GEOMETRY = IDS120h WITH MODIFIED Hg POOL

  11. 291revision:1995-09-04modified:1995-09-04 A Variety with Solvable, but not Uniformly

    E-Print Network [OSTI]

    Shelah, Saharon

    291revision:1995-09-04modified:1995-09-04 A Variety with Solvable, but not Uniformly Solvable, Word #12;291revision:1995-09-04modified:1995-09-04 Abstract In the literature two notions of the word, word problem. Other related examples are given as well. #12;291revision:1995-09-04modified:1995

  12. Development of a long-term durability specification for polymer modified asphalt

    E-Print Network [OSTI]

    Woo, Won Jun

    2009-06-02

    In recent years an increased use of polymers has occurred to modify asphalt binders, mainly to decrease pavement rutting but also to improve binder failure strain in direct tension. Whereas all of these effects positively ...

  13. Applying the modified quadriform to measure efficiency in Texas public schools

    E-Print Network [OSTI]

    Stevens, Chad Aaron

    2007-04-25

    The purpose of this study was to identify school districts in the state of Texas that would be considered efficient based on the modified quadriform model, and to identify alterable school characteristics most associated ...

  14. The role of histones and histone modifying enzymes in ribosomal dna silencing in saccharomyces cerevisiae

    E-Print Network [OSTI]

    Li, Chonghua

    2009-05-15

    In S. cerevisiae, the ribosomal DNA locus is silent for RNA polymerase II (Pol II) transcription and recombination (rDNA silencing). Our goal is to understand how histones and histone-modifying enzymes regulate the silent ...

  15. Modified Niched Pareto Multi-objective Genetic Algorithm for Construction Scheduling Optimization

    E-Print Network [OSTI]

    Kim, Kyungki

    2012-10-19

    , a new data structure is proposed to define a solution to the problem and a general Niched Pareto Genetic Algorithm (NPGA) is modified to facilitate optimization procedure. The main features of the proposed Multi-Objective Genetic Algorithm (MOGA...

  16. DESIGN AND IMPLEMENTATION OF A HIGHLY MODIFIABLE RETAIL E-COMMERCE WEBSITE

    E-Print Network [OSTI]

    Soenen, Mark

    2008-07-22

    The availability, modifiability, and performance of retail e-commerce websites(RECWEB) is greatly impacted by seasonal constraints. For many RECWEB, half of the calendar year is comprised of holidays and seasons. Spikes in website traffic...

  17. Experiences with ALMA: Architecture-Level Modifiability Analysis Architecture Analysis Experiences

    E-Print Network [OSTI]

    van Vliet, Hans

    Experiences with ALMA: Architecture-Level Modifiability Analysis Architecture Analysis Experiences Engineering and Computer Science Blekinge Institute of Technology Ronneby, Sweden *** Department is largely determined by a system's software architecture. Analysis of software architectures is therefore

  18. Surface-Modified Membrane as A Separator for Lithium-Ion Polymer Battery

    E-Print Network [OSTI]

    Kim, Jun Young

    This paper describes the fabrication of novel modified polyethylene (PE) membranes using plasma technology to create high-performance and cost-effective separator membranes for practical applications in lithium-ion polymer ...

  19. Last date modified 1/16/13 Location and Institution MEXICO -MEXICO CITY

    E-Print Network [OSTI]

    Galles, David

    Last date modified 1/16/13 Location and Institution MEXICO - MEXICO CITY UNIVERSIDAD IBEROAMERICANA - MEXICO CITY (UIA - MEXICO CITY) Program and Language a homestay or apartment. *Housing fees: Room rates are paid directly to UIA- Mexico

  20. Modifying the Attitudes of Nonhandicapped High School Students Toward Handicapped Peers

    E-Print Network [OSTI]

    Fiedler, Craig R.; Simpson, Richard L.

    1987-01-01

    ABSTRACT: Two curricuJar approaches for modifying nonhandicapped high school students' attitudes toward their exceptional peers were compared. One curriculum was structured around categories of exceptionality (e.g., mental retardation, sensory...

  1. Modified magnetic field distribution in relativistic magnetron with diffraction output for compact operation

    SciTech Connect (OSTI)

    Li Wei; Liu Yonggui [College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073 (China)

    2011-02-15

    A modified magnetic field distribution in relativistic magnetron with diffraction output (MDO) for compact operation is proposed in this paper. The principle of how the modified magnetic field confines electrons drifting out of the interaction space is analyzed. The results of the particle-in-cell (PIC) simulations of the MDO with the modified magnetic field distribution show that the output power of the MDO is improved, and the long cylindrical waveguide used for collecting the drifting electrons can be omitted. The latter measure allows the horn antenna of the MDO to produce more focused energy with better directivity in the far field than it does with the long cylindrical waveguide. The MDO with the modified magnetic field distribution promises to be the real most compact narrow band high power microwave source.

  2. Polymer blend containing a modified dense star polymer or dendrimer and a matrix polymer

    DOE Patents [OSTI]

    Hedstrand, D.M.; Tomalia, D.A.

    1995-02-28

    Dense star polymers or dendrimers, modified by capping with a hydrophobic group capable of providing a hydrophobic outer shell, act as molecular nucleating agents in forming a polymer blend.

  3. Modified Anti-de-Sitter Metric, Light-Front Quantized QCD, and...

    Office of Scientific and Technical Information (OSTI)

    Modified Anti-de-Sitter Metric, Light-Front Quantized QCD, and Conformal Quantum Mechanics Dosch, Hans Gunter; U. Heidelberg, ITP; Brodsky, Stanley J.; SLAC; de Teramond, Guy F.;...

  4. Experimental investigation of energy dissipation behavior of the modified friction device

    E-Print Network [OSTI]

    Zahner, Robert Marne

    2011-01-01

    As building materials become stronger, dynamic design and structural control are effective means of improving serviceability in the future's ever lighter structures. The recently proposed modified friction device (MFD) ...

  5. The effect of air blowing on the properties of rubber-modified asphalt binder

    E-Print Network [OSTI]

    Bauer, Shauna Erin

    1997-01-01

    Recently, crumb rubber modifier or CRM has become prevalent in the construction of flexible pavements. This work addresses the phase separation that is commonly encountered with asphalt-rubber binders subjected to prolonged ...

  6. Current tests of alternative gravity theories: the Modified Newtonian Dynamics case

    E-Print Network [OSTI]

    Jorge Paramos; Orfeu Bertolami

    2006-11-07

    We address the possibility of taking advantage of high accuracy gravitational space experiments in the Solar System and complementary cosmological tests to distinguish between the usual general relativistic theory from the alternative modified Newtonian dynamics paradigm.

  7. Redox State-Dependent Interaction of HMGB1 and Cisplatin-Modified DNA

    E-Print Network [OSTI]

    Park, SeMi

    HMGB1, one of the most abundant nuclear proteins, has a strong binding affinity for cisplatin-modified DNA. It has been proposed that HMGB1 enhances the anticancer efficacy of cisplatin by shielding platinated DNA lesions ...

  8. Biomaterials 24 (2003) 37573764 Cell adhesion on gaseous plasma modified poly-(l-lactide) surface

    E-Print Network [OSTI]

    Yang, Jian

    2003-01-01

    Biomaterials 24 (2003) 37573764 Cell adhesion on gaseous plasma modified poly-(l-lactide) surface properties of biomaterials. It is commonly accepted that the adhesion of cells to solid substrata

  9. Field Application of a Modified Kozeny-Carmen Correlation to Characterize Hydraulic Flow Units

    E-Print Network [OSTI]

    Hossain, M. Enamul

    in the Middle East region. Relative permeability curves, Leverett J-Function curves and initial water saturation that modified Kozeny-Carmen technique give better matching of initial water saturation model than

  10. Last date modified 1/11/13 Location and Institution BRAZIL -PORTO ALEGRE

    E-Print Network [OSTI]

    Galles, David

    Last date modified 1/11/13 Location and Institution BRAZIL - PORTO ALEGRE throughout Brazil and service learning activities are and/or Scholarships available. See in Brazil. You must apply as soon as possible once accepted into the program

  11. An experimental study of strongly modified emission in inverse opal photonic crystals

    E-Print Network [OSTI]

    Vos, Willem L.

    An experimental study of strongly modified emission in inverse opal photonic crystals A. Femius crystals, made of inverse opals in titania. We show that both the fluorescence quantum efficiency and weak

  12. Road traffic noise modifies behaviour of a keystone species Graeme Shannon a, *

    E-Print Network [OSTI]

    Angeloni, Lisa

    Road traffic noise modifies behaviour of a keystone species Graeme Shannon a, * , Lisa M. Angeloni the influence of traffic noise on foraging and vigilance in a keystone species in North American prairie systems

  13. Tone-evoked Fos labeling in the central auditory pathway : effects of stimulus intensity and auditory fear conditioning

    E-Print Network [OSTI]

    Santos, Teresa P. G

    2006-01-01

    Understanding intensity coding and auditory learning are basic concerns of research on the auditory central pathway. There is no unifying model of intensity coding but several mechanisms have been proposed to play a role. ...

  14. Comparison of the Evolution of Energy Intensity in Spain and in the EU15. Why is Spain Different?

    E-Print Network [OSTI]

    Ocaa, Carlos

    Energy intensity in Spain has increased since 1990, while the opposite has happened in the EU15. Decomposition analysis of primary energy intensity ratios has been used to identify which are the key sectors driving the ...

  15. The C-Cat Wordnet Package: An Open Source Package for modifying andapplying Wordnet

    SciTech Connect (OSTI)

    Stevens, K; Huang, T; Buttler, D

    2011-09-16

    We present the C-Cat Wordnet package, an open source library for using and modifying Wordnet. The package includes four key features: an API for modifying Synsets; implementations of standard similarity metrics, implementations of well known Word Sense Disambiguation algorithms, and an implementation of the Castanet algorithm. The library is easily extendible and usable in many runtime environments. We demonstrate it's use on two standard Word Sense Disambiguation tasks and apply the Castanet algorithm to a corpus.

  16. Modified Gauss-Bonnet theory as gravitational alternative for dark energy

    E-Print Network [OSTI]

    Shin'ichi Nojiri; Sergei D. Odintsov

    2005-10-06

    We suggest the modified gravity where some arbitrary function of Gauss-Bonnet (GB) term is added to Einstein action as gravitational dark energy. It is shown that such theory may pass solar system tests. It is demonstrated that modified GB gravity may describe the most interesting features of late-time cosmology: the transition from deceleration to acceleration, crossing the phantom divide, current acceleration with effective (cosmological constant, quintessence or phantom) equation of state of the universe.

  17. Modifying yolk fatty acid composition to improve the health quality of shell eggs

    E-Print Network [OSTI]

    Van Elswyk, Mary Elizabeth

    1990-01-01

    MODIFYING YOLK FATTY ACID COMPOSITION TO IMPROVE THE HEALTH QUALITY OF SHELL EGGS A Thesis by MARY ELIZABETH VAN ELSWYK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1990 Major Subject: Nutrition MODIFYING YOLK FATTY ACID COMPOSITION TO IMPROVE THE HEALTH QUALITY OF SHELL EGGS A Thesis by MARY ELIZABETH VAN ELSWYK Approved as to style and content by: Pamela S. Har s (Chair...

  18. Considerations for the use of the modified line reversal technique for gas temperature measurement

    SciTech Connect (OSTI)

    Winkleman, B.C.

    1993-06-01

    Several areas related to the successful and accurate application of modified line reversal are discussed. Initially, generalized modified line reversal equations are developed. A review of basic line reversal theory is presented followed by development of correction factors for optical system effects. Image size and their effect on accurate determinations of spectral radiances is discussed. Temperature biases introduced by image vignetting is calculated. Measured image irradiances are given.

  19. A modified post damping ring bunch compressor beamline for the TESLA linear collider

    SciTech Connect (OSTI)

    Philippe R.-G. Piot; Winfried Decking

    2004-03-23

    We propose a modified bunch compressor beamline, downstream of the damping ring, for the TESLA linear collider. This modified beamline uses a third harmonic radio-frequency section based on the 3.9 GHz superconducting cavity under development at Fermilab. In our design the beam deceleration is about {approx}50 MeV instead of {approx}450 MeV in the original design proposed.

  20. Cuprous-chloride-modified nanoporous alumina membranes for ethylene-ethane separation

    SciTech Connect (OSTI)

    Lin, Y.S.; Wang, Y.; Ji, W.; Higgins, R.J.

    1999-06-01

    This paper reports an attempt to synthesize a CuCl-modified {gamma}-alumina membrane for separation of ethylene from ethane. CuCl was effectively coated in the 4 nm pore {gamma}-alumina top layers of disk-shaped and tubular alumina membranes by the reservoir method. Permeation of a single gas and binary mixture of ethylene and ethane was measured to characterize separation properties of the modified membranes. Pure ethylene permeance of the CuCl-modified membrane is 10--40% lower than that predicted from the pure ethane permeance by the Knudsen theory. This result is explained by a model based on the adsorbed layer of ethylene via {pi}-complexation. Such an adsorbed layer hinders the diffusion of ethylene in the nanopores of CuCl-modified {gamma}-alumina. Multiple gas permeation measurements on the CuCl-modified membranes show a separation factor for ethylene over ethane larger than the Knudsen value. This confirms a positive contribution of the surface flow of ethylene to the permeance of ethylene in the multiple gas permeation system. A maximum separation factor for ethylene over ethane of 1.4 is obtained for the CuCl-modified membrane at 60 C.

  1. Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol

    SciTech Connect (OSTI)

    Ayoub, Muhammad, E-mail: muhammad.ayoub@petronas.com.my [Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750, Tronoh, Perak, Malaysia and School of Chemical Engineering, Universiti Sains Malaysia, 43000, Pinang (Malaysia); Abdullah, Ahmad Zuhairi, E-mail: chzuhairi@usm.my [School of Chemical Engineering, Universiti Sains Malaysia, 43000, Pinang (Malaysia); Inayat, Abrar, E-mail: abrar.inayat@petronas.com.my [Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750, Tronoh, Perak (Malaysia)

    2014-10-24

    Basic zeolite has received significant attention in the catalysis community. These zeolites modified with alkaline are the potential replacement for existing zeolite catalysts due to its unique features with added advantages. The present paper covers the preparation of lithium modified zeolite Y (Li-ZeY) and its activity for solvent free conversion of biodiesel-derived glycerol to polyglycerol via etherification process. The modified zeolite was well characterized by X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Nitrogen Adsorption. The SEM images showed that there was no change in morphology of modified zeolite structure after lithium modification. XRD patterns showed that the structure of zeolite was sustained after lithium modification. The surface properties of parent and modified zeolite was also observed N{sub 2} adsortion-desorption technique and found some changes in surface area and pore size. In addition, the basic strength of prepared materials was measured by Hammet indicators and found that basic strength of Li-ZeY was highly improved. This modified zeolite was found highly thermal stable and active heterogamous basic catalyst for conversion of solvent free glycerol to polyglycerol. This reaction was conducted at different temperatures and 260 C was found most active temperature for this process for reaction time from 6 to 12 h over this basic catalyst in the absence of solvent.

  2. Foreground contamination in Ly? intensity mapping during the epoch of reionization

    SciTech Connect (OSTI)

    Gong, Yan; Cooray, Asantha; Silva, Marta; Santos, Mario G.

    2014-04-10

    The intensity mapping of Ly? emission during the epoch of reionization will be contaminated by foreground emission lines from lower redshifts. We calculate the mean intensity and the power spectrum of Ly? emission at z ? 7 and estimate the uncertainties according to the relevant astrophysical processes. We find that the low-redshift emission lines from 6563 H?, 5007 [O III], and 3727 [O II] will be strong contaminants on the observed Ly? power spectrum. We make use of both the star formation rate and luminosity functions to estimate the mean intensity and power spectra of the three foreground lines at z ? 0.5 for H?, z ? 0.9 for [O III], and z ? 1.6 for [O II], as they will contaminate the Ly? emission at z ? 7. The [O II] line is found to be the strongest. We analyze the masking of the bright survey pixels with a foreground line above some line intensity threshold as a way to reduce the contamination in an intensity mapping survey. We find that the foreground contamination can be neglected if we remove pixels with fluxes above 1.4 10{sup 20} W m{sup 2}.

  3. Intensity-resolved ionization yields of aniline with femtosecond laser pulses

    SciTech Connect (OSTI)

    Strohaber, J.; Hart, N.; Zhu, F.; Nava, R.; Pham, F.; Kolomenskii, A. A.; Paulus, G. G.; Schuessler, H. A.; Mohamed, T.; Schroeder, H.

    2011-12-15

    We present experimental results for the ionization of aniline and benzene molecules subjected to intense ultrashort laser pulses. Measured parent molecular ions yields were obtained using a recently developed technique capable of three-dimensional imaging of ion distributions within the focus of a laser beam. By selecting ions originating from the central region of the focus, where the spatial intensity distribution is nearly uniform, volumetric-free intensity-dependent ionization yields were obtained. The measured data revealed a previously unseen resonance-enhanced multiphoton ionization (REMPI)-like process. Comparison of benzene, aniline, and Xe ion yields demonstrates that the observed intensity-dependent structures are not due to geometric artifacts in the focus. Finally for intensities greater than {approx}3x10{sup 13} W/cm{sup 2}, we attribute the ionization of aniline to a stepwise process going through the {pi}{sigma}{sup *} state which sits three photons above the ground state and two photons below the continuum.

  4. Architecture of North Atlantic Contourite Drifts Modified by Transient Circulation of the Icelandic Mantle Plume

    E-Print Network [OSTI]

    Parnell-Turner, Ross; White, Nicky; McCave, I. Nick; Henstock, Tim; Murton, Bramley; Jones, Stephen M.

    2015-10-15

    influenced North Atlantic bathymetry through time. Thus pathways and intensities of bottom currents that control deposition of contourite drifts could be affected by mantle processes. Here, we present regional seismic reflection profiles that cross...

  5. Abstract --Developing software for mobile or ad hoc scenarios is very cost intensive. Different software and

    E-Print Network [OSTI]

    Steimann, Friedrich

    communication infrastructure is modified or exchanged, applications should not be developed 'from scratch.g., is not compatible with Standard Java, thus we cannot use programs across platforms without re-implementing major manufacturers: even if devices in principle are able to accommodate high-level com- munication platforms

  6. Intensive Observation

    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 likeUniverseIMPACT EVALUATION PLANIs gravityIntellectual PropertyEnergyAdvisor XESpring

  7. Decomposition pathways of C2 oxygenates on Rh-modified tungsten carbide surfaces

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

    Kelly, Thomas G.; Ren, Hui; Chen, Jingguang G.

    2015-03-27

    Ethanol decomposition on tungsten monocarbide (WC) and Rh-modified WC was investigated using ultrahigh vacuum (UHV) surface science experiments and density functional theory (DFT) calculations. DFT calculations indicated that the binding energies of ethanol and its decomposition intermediates on WC(0001) were modified by Rh, with Rh/WC(0001) showing similar values to those on Rh(111). Through temperature-programmed desorption (TPD) experiments on polycrystalline WC and Rh-modified WC, it was shown that the selectivity for ethanol decomposition was different on these surfaces. On WC, the C-O bond of ethanol was preferentially broken to produce ethylene; on Rh-modified WC, the C-C bond was broken to producemorecarbon monoxide and methane. In addition, high-resolution electron energy loss spectroscopy (HREELS) was used to determine likely surface intermediates. On Rh-modified WC, ethanol first formed ethoxy through O-H scission, then reacted through an aldehyde intermediate to form the C1 products.less

  8. Constraining Neutrino Mass Matrix from Modified BM with Softly Broken $?-?$ Symmetry

    E-Print Network [OSTI]

    Asan Damanik

    2015-05-01

    The bimaximal (BM) neutrino mixing matrix was formulated in order to accommodate the data of the experimental results which indicate that both solar and atmospheric neutrino oscillation in vacuum are near maximal. But, after the T2K and Daya Bay Collaborations reported that the mixing angle $\\theta_{13}$ is nonzero and relatively large, many authors have modified the neutrino mixing matrix in order to accommodate experimental data. We modified the BM mixing matrix by introducing a simple perturbation matrix into BM mixing matrix. The modified BM mixing matrix can proceed the mixing angles which are compatible with the globat fit analysis data and by imposing the $\\mu-\\tau$ symmetry into mass matrix from modified BM, we have the neutrino mass in normal hierarchy: $m_{1}matrix in the scheme of modified BM and imposing the constraint exact $\\mu-\\tau$ symmetry into neutrino mass matrix, we cannot have compatible squared-mass differences for both $\\Delta m_{21}^{2}$ and $\\Delta m_{32}^{2}$ as dictated by experimental results. We break softly the $\\mu-\\tau$ symmetry by introducing a small parameter $\\lambda$ into neutrino mass matrix which then can proceed neutrino masses are in agreement with the squared mass difference as dictated by experimental results.The predicted neutrino effective mass: $\\left|m_{ee}\\right|=0.0155 {\\rm eV}$ in this paper can be tested in the future neutrinoless double beta decay

  9. Constant-intensity waves and their modulation instability in non-Hermitian potentials

    E-Print Network [OSTI]

    Konstantinos G. Makris; Ziad H. Musslimani; Demetrios N. Christodoulides; Stefan Rotter

    2015-03-31

    In all of the diverse areas of science where waves play an important role, one of the most fundamental solutions of the corresponding wave equation is a stationary wave with constant intensity. The most familiar example is that of a plane wave propagating in free space. In the presence of any Hermitian potential, a wave's constant intensity is, however, immediately destroyed due to scattering. Here we show that this fundamental restriction is conveniently lifted when working with non-Hermitian potentials. In particular, we present a whole new class of waves that have constant intensity in the presence of linear as well as of nonlinear inhomogeneous media with gain and loss. These solutions allow us to study, for the first time, the fundamental phenomenon of modulation instability in an inhomogeneous environment. Our results pose a new challenge for the experiments on non-Hermitian scattering that have recently been put forward.

  10. Calculation of integrated intensities in aberration-corrected Z-contrast images

    SciTech Connect (OSTI)

    Molina, S. I. [Universidad de Cadiz, Spain; Guerrero, M. P. [Universidad de Cadiz, Spain; Galindo, Pedro [Universidad de Cadiz, Spain; Sales, David [Universidad de Cadiz, Spain; Varela del Arco, Maria [ORNL; Pennycook, Stephen J [ORNL

    2011-01-01

    Inclusion of spatial incoherence has been shown to give quantitative agreement between non-aberration-corrected high-angle annular dark-field scanning transmission electron microscopy images and theoretical simulations. Here we show that, using the same approach, a significant improvement in the correlation between calculated and experimental normalized integrated intensities is obtained in the InAsP ternary semiconductor alloy, but residual discrepancies remain. We have demonstrated, in good agreement with experimental intensities obtained in calibrated samples, that normalized integrated intensities show a low dependence on the sample thickness over a wide range of thickness values. This behaviour does not occur in conventional (non-aberration-corrected) images and constitutes a powerful tool for straightforward interpretation of high-resolution images in terms of atomic column-resolved compositional maps.

  11. Optimization of infrared two-color multicycle field synthesis for intense-isolated-attosecond-pulse generation

    SciTech Connect (OSTI)

    Lan Pengfei; Takahashi, Eiji J.; Midorikawa, Katsumi [Extreme Photonics Research Group, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)

    2010-11-15

    We present the optimization of the two-color synthesis method for generating an intense isolated attosecond pulse (IAP) in the multicycle regime. By mixing an infrared assistant pulse with a Ti:sapphire main pulse, we show that an IAP can be produced using a multicycle two-color pulse with a duration longer than 30 fs. We also discuss the influence of the carrier-envelope phase (CEP) and the relative intensity on the generation of IAPs. By optimizing the wavelength of the assistant field, IAP generation becomes insensitive to the CEP slip. Therefore, the optimized two-color method enables us to relax the requirements of pulse duration and easily produce the IAP with a conventional multicycle laser pulse. In addition, it enables us to markedly suppress the ionization of the harmonic medium. This is a major advantage for efficiently generating intense IAPs from a neutral medium by applying the appropriate phase-matching and energy-scaling techniques.

  12. Increase in the Intensity of Postmonsoon Bay of Bengal Tropical Cyclones

    SciTech Connect (OSTI)

    Balaguru, Karthik; Taraphdar, Sourav; Leung, Lai-Yung R.; Foltz, Gregory R.

    2014-05-28

    The post-monsoon (October-November) tropical cyclone (TC) season in the Bay of Bengal has spawned many of the deadliest storms in recorded history. Here it is shown that the intensity of post-monsoon Bay of Bengal TCs, and the contribution of major TCs to total TC power, increased during 1981-2010. It is found that changes in environmental parameters are responsible for the observed increases in TC intensity. Increases in sea surface temperature and upper ocean heat content made the ocean more conducive to TC development, while enhanced convective instability made the atmosphere more favorable for the growth of TCs. The largest changes in the atmosphere and ocean occurred in the eastern Bay of Bengal, where nearly all major TCs form. These changes are part of positive linear trends, suggesting that the intensity of post-monsoon Bay of Bengal TCs may continue to increase in the future.

  13. Technique for compressing light intensity ranges utilizing a specifically designed liquid crystal notch filter

    DOE Patents [OSTI]

    Rushford, Michael C. (Livermore, CA)

    1988-01-01

    A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten metal in an atomic vapor laser isotope separation (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. To accomplish this, the assembly utilizes the combination of interference filter and a liquid crystal notch filter. The latter which preferably includes a cholesteric liquid crystal arrangement is configured to pass light at all wavelengths, except a relatively narrow wavelength band which defines the filter's notch, and includes means for causing the notch to vary to at least a limited extent with the intensity of light at its light incidence surface.

  14. Unveiling temporal correlations characteristic to phase transition in the intensity of a fibre laser radiation

    E-Print Network [OSTI]

    Andres Aragoneses; Laura Carpi; Nikita Tarasov; Dmitry V. Churkin; M. C. Torrent; Cristina Masoller; Sergei K. Turitsyn

    2015-06-09

    We use advanced statistical tools of time-series analysis to characterize the dynamical complexity of the transition to optical wave turbulence in a fibre laser. Ordinal analysis and the horizontal visibility graph applied to the experimentally measured laser output intensity reveal the presence of temporal correlations during the transition from the laminar to the turbulent lasing regimes. Both methods unveil coherent structures with well defined time-scales and strong correlations both, in the timing of the laser pulses and in their peak intensities. Our approach is generic and may be used in other complex systems that undergo similar transitions involving the generation of extreme fluctuations.

  15. Generation of high pressure shocks relevant to the shock-ignition intensity regime

    SciTech Connect (OSTI)

    Batani, D.; Folpini, G.; Giuffrida, L.; Maheut, Y.; Malka, G.; Nicolai, Ph.; Ribeyre, X. [Universit Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France)] [Universit Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France); Antonelli, L. [Universit Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France) [Universit Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence (France); Universit di Roma Tor Vergata, Roma (Italy); Atzeni, S.; Marocchino, A.; Schiavi, A. [Dipartimento SBAI, Universit di Roma La Sapienza and CNISM, Roma (Italy)] [Dipartimento SBAI, Universit di Roma La Sapienza and CNISM, Roma (Italy); Badziak, J.; Chodukowski, T.; Kalinowska, Z.; Pisarczyk, T.; Rosinski, M. [Institute of Plasma Physics and Laser Microfusion, Warsaw (Poland)] [Institute of Plasma Physics and Laser Microfusion, Warsaw (Poland); Baffigi, F.; Cristoforetti, G.; Gizzi, L. A.; Koester, P. [Intense Laser Irradiation Laboratory, INO-CNR, Pisa (Italy)] [Intense Laser Irradiation Laboratory, INO-CNR, Pisa (Italy); and others

    2014-03-15

    An experiment was performed using the PALS laser to study laser-target coupling and laser-plasma interaction in an intensity regime ?10{sup 16}?W/cm{sup 2}, relevant for the shock ignition approach to Inertial Confinement Fusion. A first beam at low intensity was used to create an extended preformed plasma, and a second one to create a strong shock. Pressures up to 90 Megabars were inferred. Our results show the importance of the details of energy transport in the overdense region.

  16. Simultaneous electronic and the magnetic excitation of a ferromagnet by intense THz pulses

    E-Print Network [OSTI]

    Shalaby, Mostafa; Hauri, Christoph P

    2015-01-01

    The speed of magnetization reversal is a key feature in magnetic data storage. Magnetic fields from intense THz pulses have been recently shown to induce small magnetization dynamics in Cobalt thin film on the sub-picosecond time scale. Here, we show that at higher field intensities, the THz electric field starts playing a role, strongly changing the dielectric properties of the cobalt thin film. Both the electronic and magnetic responses are found to occur simultaneously, with the electric field response persistent on a time scale orders of magnitude longer than the THz stimulus

  17. Newton's second law versus modified-inertia MOND: a test using the high-latitude effect

    E-Print Network [OSTI]

    A. Yu. Ignatiev

    2008-02-12

    The modified-inertia MOND is an approach that proposes a change in Newton's second law at small accelerations as an alternative to dark matter. Recently it was suggested that this approach can be tested in terrestrial laboratory experiments. One way of doing the test is based on the Static High-Latitude Equinox Modified Inertia (SHLEM) effect: around each equinox date, 2 spots emerge on the Earth where static bodies experience spontaneous displacement due to the violation of Newton's second law required by the modified-inertia MOND. Here, a detailed theory of this effect is developed and estimates of the magnitude of the signal due to the effect are obtained. The expected displacement of a mirror in a gravitational wave interferometer is found to be about 10^{-14} m. Some experimental aspects of the proposal are discussed.

  18. Thermodynamical description of modified generalized Chaplygin gas model of dark energy

    E-Print Network [OSTI]

    H. Ebadi; H. Moradpour

    2015-04-15

    We consider a universe filled by a modified generalized Chaplygin gas together with a pressureless dark matter component. We get a thermodynamical interpretation for the modified generalized Chaplygin gas confined to the apparent horizon of FRW universe, whiles dark sectors do not interact with each other. Thereinafter, by taking into account a mutual interaction between the dark sectors of the cosmos, we find a thermodynamical interpretation for interacting modified generalized Chaplygin gas. Additionally, probable relation between the thermal fluctuations of the system and the assumed mutual interaction is investigated. Finally, we show that if one wants to solve the coincidence problem by using this mutual interaction, then the coupling constants of the interaction will be constrained. The corresponding constraint is also addressed. Moreover, the thermodynamic interpretation of using either a generalized Chaplygin gas or a Chaplygin gas to describe dark energy is also addressed throughout the paper.

  19. Newton's second law versus modified-inertia MOND: A test using the high-latitude effect

    SciTech Connect (OSTI)

    Ignatiev, A. Yu. [Theoretical Physics Research Institute, Melbourne 3163 (Australia)

    2008-05-15

    The modified-inertia MOND is an approach that proposes a change in Newton's second law at small accelerations as an alternative to dark matter. Recently it was suggested that this approach can be tested in terrestrial laboratory experiments. One way of doing the test is based on the static high-latitude equinox modified-inertia effect: around each equinox date, 2 spots emerge on the Earth where static bodies experience spontaneous displacement due to the violation of Newton's second law required by the modified-inertia MOND. Here, a detailed theory of this effect is developed and estimates of the magnitude of the signal due to the effect are obtained. The expected displacement of a mirror in a gravitational-wave interferometer is found to be about 10{sup -14} m. Some experimental aspects of the proposal are discussed.

  20. Plants having modified response to ethylene by transformation with an ETR nucleic acid

    DOE Patents [OSTI]

    Meyerowitz, Elliott M. (Pasadena, CA); Chang, Caren (Pasadena, CA); Bleecker, Anthony B. (Madison, WI)

    2001-01-01

    The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as compared to a plant not containing the transformed plant cell. Tissue and/or temporal specificity for expression of the modified ETR nucleic acid is controlled by selecting appropriate expression regulation sequences to target the location and/or time of expression of the transformed nucleic acid. The plants are made by transforming at least one plant cell with an appropriate modified ETR nucleic acid, regenerating plants from one or more of the transformed plant cells and selecting at least one plant having the desired phenotype.