Sample records for income strongly influence

  1. Local Environmental Pollution Strongly Influences Culturable Bacterial Aerosols at an Urban Aquatic Superfund Site

    E-Print Network [OSTI]

    Uriarte, Maria

    Local Environmental Pollution Strongly Influences Culturable Bacterial Aerosols at an Urban Aquatic Information ABSTRACT: In polluted environments, when microbial aerosols originate locally, species composition of the aerosols should reflect the polluted source. To test the connection between local environmental pollution

  2. Influence of direct URCA processes in a strong magnetic field on dynamics of collapsing star envelope

    E-Print Network [OSTI]

    A. A. Gvozdev; I. S. Ognev

    1999-12-14T23:59:59.000Z

    Direct URCA processes in a collapsing star envelope with a strong magnetic field are investigated. It is shown that in the toroidal magnetic field these processes can develope a torque which quickly unwinds an envelope. A general expression for a force density along the field direction is obtained. An influence of the neutrino unwinding effect on a dynamics of the collapsar envelope is discussed and numerically estimated.

  3. Influence of suprathermal background electrons on strong auroral double layers: Observations

    SciTech Connect (OSTI)

    Andersson, L. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309 (United States); Newman, D. L.; Goldman, M. V. [Center for Integrated Plasma Studies, University of Colorado, Boulder, Colorado 80309 (United States); Ergun, R. E. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309 (United States); Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, Colorado (United States); Carlson, C. W.; McFadden, J. P. [Space Science Laboratory, University of California, Berkeley, California 94729 (United States)

    2008-07-15T23:59:59.000Z

    This study examines the properties and evolution of strong, laminar double layers in the downward current region of the aurora and present several previously unpublished events from the Fast Auroral SnapshoT (FAST) satellite. Analysis of an event is presented for which the FAST satellite appears to have dwelled on the high-potential side (high-altitude side) of a double layer for an extended period, suggesting that a small (few percent of density) background of suprathermal electrons can strongly influence the structure and stability of double layers. From these observations, it is inferred that the accelerated electrons can be accelerated by either of two classes of double layers: (1) self-regulated double layers (varying field-aligned potential, with weak or no suprathermal electron background) or (2) externally regulated double layers (less variable field-aligned potential, with significant suprathermal electron background). Elements of the interpretation presented here are supported by numerical simulations, as reported in two accompanying papers.

  4. Influencing Strong Field Excitation Dynamics through Molecular Structure Noel P. Moore, Alexei N. Markevitch, and Robert J. Levis*

    E-Print Network [OSTI]

    Levis, Robert J.

    LETTERS Influencing Strong Field Excitation Dynamics through Molecular Structure Noel P. Moore,cm-2 ) excitation in a series of polyatomic molecules of increasing characteristic length1-4 report the effect of molecular size on the coupling and partitioning of intense laser radiation

  5. A Strong-Lens Survey in AEGIS: the Influence of Large Scale Structure

    SciTech Connect (OSTI)

    Moustakas, Leonidas A.; /Caltech, JPL; Marshall, Phil J.; /KIPAC, Menlo Park; Newman, Jeffrey A.; /LBL, Berkeley /NOAO, Tucson; Coil, Alison L.; /Arizona U., Astron. Dept. -; Cooper, Michael C.; Davis, Marc; /UC, Berkeley, Astron. Dept.; Fassnacht, Christopher D.; /UC, Davis; Guhathakurta, Puragra; /Lick Observ.; Hopkins, Andrew; /Sydney; Koekemoer, Anton; /Baltimore, Space Telescope Sci.; Konidaris, Nicholas P.; /Lick Observ.; Lotz, Jennifer M.; /NOAO, Tucson; Willmer, Christopher N.A.; /Arizona U., Astron. Dept. -

    2006-07-14T23:59:59.000Z

    We report on the results of a visual search for galaxy-scale strong gravitational lenses over 650 arcmin2 of HST/ACS imaging in the Extended Groth Strip (EGS). These deep F606W- and F814W-band observations are in the DEEP2-EGS field. In addition to a previously-known Einstein Cross also found by our search (the ''Cross'', HSTJ141735+52264, with z{sub lens} = 0.8106 and a published z{sub source} = 3.40), we identify two new strong galaxy-galaxy lenses with multiple extended arcs. The first, HSTJ141820+52361 (the ''Dewdrop''; z{sub lens} = 0.5798), lenses two distinct extended sources into two pairs of arcs (z{sub source} = 0.9818 by nebular [O{sub II}] emission), while the second, HSTJ141833+52435 (the ''Anchor''; z{sub lens} = 0.4625), produces a single pair of arcs (source redshift not yet known). Four less convincing arc/counter-arc and two-image lens candidates are also found and presented for completeness. All three definite lenses are fit reasonably well by simple singular isothermal ellipsoid models including external shear, giving {chi}{sub {nu}}{sup 2}values close to unity. Using the three-dimensional line-of-sight (LOS) information on galaxies from the DEEP2 data, we calculate the convergence and shear contributions {kappa}{sub los} and {gamma}{sub los} to each lens, assuming singular isothermal sphere halos truncated at 200 h{sup -1} kpc. These are compared against a robust measure of local environment, {delta}{sub 3}, a normalized density that uses the distance to the third nearest neighbor. We find that even strong lenses in demonstrably underdense local environments may be considerably affected by LOS contributions, which in turn, under the adopted assumptions, may be underestimates of the effect of large scale structure.

  6. A Strong-Lens Survey in AEGIS: the influence of large scalestructure

    SciTech Connect (OSTI)

    Moustakas, Leonidas A.; Marshall, Phil; Newman, Jeffrey A.; Coil,Alison L.; Cooper, Michael C.; Davis, Marc; Fassnacht, Christopher D.; Guhathakurta, Puragra; Hopkins, Andrew; Koekemoer, Anton; Konidaris,Nicholas P.; Lotz, Jennifer M.; Willmer, Christopher N. A.

    2006-10-13T23:59:59.000Z

    We report on the results of a visual search for galaxy-scale strong gravitational lenses over 650 arcmin{sup 2} of HST/ACS (F606W and F814W) imaging in the DEEP2-Extended Groth Strip (EGS). In addition to a previously-known Einstein Cross also found by our search (the 'Cross', HSTJ141735+52264, z{sub lens} = 0.8106, z{sub source} = 3.40), we identify two new strong galaxy-galaxy lenses with multiple extended arcs. The first, HSTJ141820+52361 (the 'Dewdrop'; z{sub lens} = 0.5798), lenses two distinct extended sources into two pairs of arcs (z{sub source} = 0.9818), while the second, HSTJ141833+52435 (the 'Anchor'; z{sub lens} = 0.4625), produces a single pair of arcs (z{sub lens} not yet known). Four less convincing arc/counter-arc and two-image lens candidates are also found and presented for completeness. Lenses are found in a both underdense and overdense local environments, as characterized by a robust measure, 1+{delta}{sub 3}, a normalized density that uses the distance to the third nearest neighbor. All three definite lenses are fit reasonably well by simple singular isothermal ellipsoid models including external shear, giving {chi}{sub {nu}}{sup 2} values close to unity. These shears are much greater than those implied by a simple consideration of the three-dimensional convergence and shear from galaxies along the line of sight, where each galaxy is approximated by a singular isothermal sphere halo truncated at 200 h{sup -1} kpc. This shows how a realistic treatment of galaxies and the large scale structure they are embedded in is necessary, and that simply characterizing the very-local environment may be insufficient.

  7. Influence of Controlled Viscous Dissipation on the Propagation of Strongly Nonlinear Waves in Stainless Steel Based Phononic Crystals

    E-Print Network [OSTI]

    E. B. Herbold; V. F. Nesterenko; C. Daraio

    2005-12-22T23:59:59.000Z

    Strongly nonlinear phononic crystals were assembled from stainless steel spheres. Single solitary waves and splitting of an initial pulse into a train of solitary waves were investigated in different viscous media using motor oil and non-aqueous glycerol to introduce a controlled viscous dissipation. Experimental results indicate that the presence of a viscous fluid dramatically altered the splitting of the initial pulse into a train of solitary waves. Numerical simulations qualitatively describe the observed phenomena only when a dissipative term based on the relative velocity between particles is introduced.

  8. Farm Income Taxation

    E-Print Network [OSTI]

    McEowen, Roger A.

    1999-06-23T23:59:59.000Z

    Income tax planning and management involves being aware of tax alternatives and knowing how to integrate them with other management data to accomplish the taxpayer's objectives. This publication discusses various alternatives for tax planning....

  9. Exceptional income from sale

    E-Print Network [OSTI]

    Pocket Guide 2005-06 Imperial College Income by Source 1997-2005 These statistics are the latest-00 2000-01 2001-02 2002-03 2003-04 2004-05 2005-06 2005-06 2004-05 % change over Nos. % total Nos. % total 100.0 -10.7 -14.2 Part-Time Student Numbers 2005-06 2004-05 % change over Nos. total Nos. total 1 year

  10. Harvest Your Retirement income options

    E-Print Network [OSTI]

    previous generations You're going to have a longer retirement (retire early, and live longer) YouHarvest Your Savings Retirement income options using your SFU Group LIF/RRIF #12;Agenda 1. Your retirement income needs 2. Where will your retirement money come from? 3. Retirement accounts and products 4

  11. Income inequality, tax base and sovereign spreads

    E-Print Network [OSTI]

    Aizenman, Joshua; Jinjarak, Yothin

    2011-01-01T23:59:59.000Z

    R. Tiongson, 2006, “Income inequality and redistributive2011, “Pre-industrial inequality,” Economic Journal, 121:255-272. Table 1: Income Inequality and Fiscal Space. This

  12. Parnassus Housing Incoming Package Policy

    E-Print Network [OSTI]

    Yamamoto, Keith

    Parnassus Housing Incoming Package Policy UCSF's Parnassus Housing Street tenants. Housing Services will sign for packages from all carriers. In order to provide the most efficient service, Housing Services receives

  13. Current trends in income statements

    E-Print Network [OSTI]

    Cass, Edwin Childers

    1948-01-01T23:59:59.000Z

    inancial st'atements (particularly published summaries) the use of tho comparative sheet is becoming more snd mors common?s . The development of the comparative statement is fortunate, . as such z sports sre of special value, , " A more recent...' . comparative statements? end it zzould certainly be desirable for companies generally, to oxhibit their earnings history fox' a pex iod of years?; Combined Income snd Sur lus Stat'ament The development of the combined income snd surplus state-- m ont...

  14. Income generation through zakat : the Islamization impact on Malaysian religious institution 

    E-Print Network [OSTI]

    Sarif, Suhaili

    2014-07-03T23:59:59.000Z

    The aim of this thesis is to examine how the Islamization phenomenon has influenced zakat. The study shows that the distribution of the fund for income generation is a manifestation of the impact of Islamization on the ...

  15. Low-Income Weatherization: The Human Dimension

    Broader source: Energy.gov [DOE]

    This presentation focuses on how the human dimension saves energy within low-income weatherization programs.

  16. Incomes of Migratory Agricultural Workers.

    E-Print Network [OSTI]

    Sargent, Frederic O.; Metzler, William H.

    1960-01-01T23:59:59.000Z

    . This was despite the fact that half of them, mainly women and childre-n, were out of the labor market complete- ly at the home base. During 1956, the average earnings per worker were $781, but male heads of households averaged labor was a major source of their income. In the 446 households surveyed, there was a total...

  17. Current trends in income statements 

    E-Print Network [OSTI]

    Cass, Edwin Childers

    1948-01-01T23:59:59.000Z

    years 2 000 000 sy&i~9 Earnings of' prior years transferred to capital stock account. ' 99 dr 124, 4452088 Accumulated. earnings invested in plant facilitlss and added to zorking oaptta1 at ead od' year . ~189 4'14 919 An example of' the second...~the ?clams surplus theory, ?2 . ?& the ?all-inclusive income statement", , = or ths. "historical approach" ~ . And those who favor tbs second belief' are said to accept ths ?eiarning* power approach", oz the "current opera- ?, 5 ting perf'ozmance concept...

  18. Plasmons in strong superconductors

    E-Print Network [OSTI]

    Marcello Baldo; Camille Ducoin

    2011-06-07T23:59:59.000Z

    We present a study of the possible plasmon excitations that can occur in systems where strong superconductivity is present. In these systems the plasmon energy is comparable to, or smaller than the pairing gap. As a prototype of these systems we consider the proton component of neutron star matter just below the crust when electron screening is not taken into account. For the realistic case we consider in detail the different aspects of the elementary excitations when the proton, electron components are considered within the Random Phase Approximation generalized to the superfluid case, while the influence of the neutron component is considered only at qualitative level. Electron screening plays a major role in modifying the proton spectrum and spectral function. At the same time the electron plasmon is strongly modified and damped by the indirect coupling with the superfluid proton component, even at moderately low values of the gap. The excitation spectrum shows the interplay of the different components and their relevance for each excitation mode. The results are relevant for neutrino physics and thermodynamical processes in neutron stars. If electron screening is neglected, the spectral properties of the proton component show some resemblance with the physical situation in high T$_c$ superconductors, and we briefly discuss similarities and differences in this connection. In a general prospect, the results of the study emphasize the role of Coulomb interaction in strong superconductors.

  19. INCOMING DOCUMENT CONTROL FORM DOCUMENT DESCRIPTION ORGANIZATIO

    Office of Legacy Management (LM)

    INCOMING DOCUMENT CONTROL FORM DOCUMENT DESCRIPTION ORGANIZATIO )ATE COMPLETED: ACTION NUMBER: I I I DOCUMENT CONTROL DATE INITIALS DATA BASE: ACTION LOG: FILED: To : Doug...

  20. Low Income Home Energy Assistance Program (LIHEAP)

    Broader source: Energy.gov [DOE]

    The Low Income Home Energy Assistance Program (LIHEAP) provides resources to assist families with energy costs. This federally funded assistance helps in managing costs associated with:

  1. Income inequality, tax base and sovereign spreads

    E-Print Network [OSTI]

    Aizenman, Joshua; Jinjarak, Yothin

    2012-01-01T23:59:59.000Z

    R. Tiongson, 2006, “Income inequality and redistributive2009), “Chapter 6: Inequality Measures,” in Handbookon Poverty and Inequality, pp. 101-120, published by World

  2. Measuring Income and Projecting Energy Use

    SciTech Connect (OSTI)

    Pitcher, Hugh M.

    2009-11-01T23:59:59.000Z

    Abstract: Energy is a key requirement for a healthy, productive life and a major driver of the emissions leading to an increasingly warm planet. The implications of a doubling and redoubling of per capita incomes over the remainder of this century for energy use are a critical input into understanding the magnitude of the carbon management problem. A substantial controversy about how the Special Report on Emssions Scenarios (SRES) measured income and the potential implications of how income was measured for long term levels of energy use is revisited again in the McKibbin, Pearce and Stegman article appearing elsewhere in this issue. The recent release of a new set of purchasing power estimates of national income, and the preparations for creating new scenarios to support the IPCC’s fifth assessment highlight the importance of the issues which have arisen surrounding income and energy use. Comparing the 1993 and 2005 ICP results on Purchasing Power Parity (PPP) based measures of income reveals that not only do the 2005 ICP estimates share the same issue of common growth rates for real income as measured by PPP and US $, but the lack of coherence in the estimates of PPP incomes, especially for developing countries raises yet another obstacle to resolving the best way to measure income. Further, the common use of an income term to mediate energy demand (as in the Kaya identity) obscures an underlying reality about per capita energy demands, leading to unreasonable estimates of the impact of changing income measures and of the recent high GDP growth rates in India and China. Significant new research is required to create both a reasonable set of GDP growth rates and long term levels of energy use.

  3. EINSTEIN POLICY ON OUTSIDE PROFESSIONAL INCOME BACKGROUND

    E-Print Network [OSTI]

    Kenny, Paraic

    EINSTEIN POLICY ON OUTSIDE PROFESSIONAL INCOME 1 BACKGROUND: The System of Appointments with the rules and regulations prescribed by the College of Medicine from time to time." The Albert Einstein to the management of professional fees or other outside income earned by individuals holding Einstein faculty

  4. Harvest Your 1. Your retirement income needs

    E-Print Network [OSTI]

    Northern British Columbia, University of

    to live longer than previous generations You're going to have a longer retirement (retire early, and liveHarvest Your Savings #12;Agenda 1. Your retirement income needs 2. Where will your retirement money come from? 3. Retirement accounts and products 4. Sun Life Financial's retirement services #12;Income

  5. Income and Poverty in a Developing Economy

    E-Print Network [OSTI]

    Chattopadhyay, Amit K; Mallick, Sushanta K

    2009-01-01T23:59:59.000Z

    We present a stochastic agent-based model for the distribution of personal incomes in a developing economy. We start with the assumption that incomes are determined both by individual labour and by stochastic effects of trading and investment. The income from personal effort alone is distributed about a mean, while the income from trade, which may be positive or negative, is proportional to the trader's income. These assumptions lead to a Langevin model with multiplicative noise, from which we derive a Fokker-Planck (FP) equation for the income probability density function (IPDF) and its variation in time. We find that high earners have a power-law income distribution while the low income groups have a Levy IPDF. Comparing our analysis with the Indian survey data (obtained from the world bank website) taken over many years we obtain a near-perfect data collapse onto our model's equilibrium IPDF. The theory quantifies the economic notion of ``given other things''. Using survey data to relate the IPDF to actual...

  6. Fixed Income Division Nomura International plc

    E-Print Network [OSTI]

    Macrina, Andrea

    Fixed Income Division © Nomura International plc Symmetry methods for quadratic Gaussian models International plc Outline Motivation The quadratic Gaussian distribution The quadratic Gaussian process The quadratic Gaussian model #12;Fixed Income Division 3© Nomura International plc Part 1 Motivation #12;Fixed

  7. Top Incomes in the Long Run of History

    E-Print Network [OSTI]

    Atkinson, Anthony B.; Piketty, Thomas; Saez, Emmanuel

    2012-01-01T23:59:59.000Z

    A. B. and T. Piketty eds. Top Incomes over the TwentiethPress. Atkinson, Anthony B. (2010) “Top incomes in a rapidlyA. B. and T. Piketty eds. Top Incomes over the Twentieth

  8. Loan Programs for Low- and Moderate-Income Households | Department...

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

    Multifamily and Low-Income Housing Peer Exchange Call Series: Loan Programs for Low- and Moderate-Income Households, March 13, 2014. Call Slides and Discussion Summary More...

  9. Structure and Organizing Principles for Low Income Energy Efficiency

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

    Organizing Principles for Low Income Energy Efficiency Workgroup 1 Background As part of Post-2011-Review, BPA agreed to convene a low income energy efficiency workgroup. The...

  10. Proposed Structure and Organizing Principles for Low Income Energy...

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

    Structure and Organizing Principles for Low Income Energy Efficiency Workgroup 1 Background As part of Post-2011-Review, BPA agreed to convene a low income energy efficiency...

  11. Income Inequality and Population Health in Geographic Perspective

    E-Print Network [OSTI]

    Shin, Michael E.

    2006-01-01T23:59:59.000Z

    S. (2004). Health and Inequality London: Sage Deininger,set measuring income inequality. World Bank Economic Review,Mortality and income inequality among economically developed

  12. Better Buildings Program San Jose - Serving Moderate Income Residents...

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

    Program San Jose - Serving Moderate Income Residents Better Buildings Program San Jose - Serving Moderate Income Residents Provides an overview of the program components and goals,...

  13. The State and income inequality in Brazil

    E-Print Network [OSTI]

    Medeiros, Marcelo; Souza, Pedro H.G.F.

    2013-01-01T23:59:59.000Z

    Cash Transfers in Brazil, Chile and Mexico: Impacts uponand income inequality in Brazil Journal. 1986;96(383):722–the inequality levels in Brazil would be much higher than

  14. Income Statement -- A Financial Management Tool

    E-Print Network [OSTI]

    Klinefelter, Danny A.

    2008-09-16T23:59:59.000Z

    (Accounts Receivable) Farm Cash Operating Expenses ? Change in Inventory Value of Accrued ? Expense, Production Supply Expense, and Accrued Interest Expense Depreciation Expenses ? Gain or Loss on Sale of Farm Capital Assets ? Gain or Loss Due... on Sale of Breeding ? Livestock Farm Business Receipts The principal source of farm income is the sale of livestock, grain and other farm products. Other income is from agricultural program pay- ments, custom work and dividends. Changes in Inventory...

  15. Incomes of Rural Families in Northeast Texas.

    E-Print Network [OSTI]

    Southern, John H.; Hendrix, W. E.

    1959-01-01T23:59:59.000Z

    Summary i This study deals on a sample basis with the income levels, income sources and farm and human re- source characteristics of the 88,000 rural open-country families in a 24-county area of Northeast Texas. ) Low levels of living... mainly from small-scale crop to s~all- scale livestock farming. In 1955, 49,000 of the area's rural families were farm families and 39,000 were nonfarm families, or 55 percent and 45 percent, respectively. However, 21 percent of all farmers were full...

  16. Unrelated Business Income Tax (UBIT) Policy

    E-Print Network [OSTI]

    AND PURPOSE The purpose of this policy is to ensure that the Colorado School of Mines ("Mines") complies educational mission: instruction; research; and public service in energy, mineral engineering, and mineral subject it to income taxation by the state and federal government. Recent IRS audits of institutions

  17. Life in low income families in Scotland: research report 

    E-Print Network [OSTI]

    McKendrick, John H; Cunningham-Burley, Sarah; Backett-Milburn, Kathryn

    Living on a low income is a problem that the Scottish Executive and UK Parliament want to tackle. Previous work has focused on measuring the number of people living on a low income. This research was commissioned to ...

  18. The Farmer's Conundrum: Income from Biofuels or Protect the Soil...

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

    The Farmer's Conundrum: Income from Biofuels or Protect the Soil? The Farmer's Conundrum: Income from Biofuels or Protect the Soil? July 1, 2010 - 11:39am Addthis Lindsay Gsell...

  19. EmPOWER Maryland Low Income Energy Efficiency Program

    Broader source: Energy.gov [DOE]

    The Maryland Department of Housing and Community Development (DHCD) EmPOWER Maryland Low Income Energy Efficiency Program helps qualifying low-income residents increase the energy efficiency of t...

  20. Income Inequality and Mortality: The Costa RIcan Case

    E-Print Network [OSTI]

    Modrek, Sepideh

    2009-01-01T23:59:59.000Z

    44-49). San Francisco Kuznets, S. (1955). Economic Growthin income inequality (Kuznets, 1955), but benefits from this

  1. What Drives the Public Mood of Income Inequality

    E-Print Network [OSTI]

    Myers, Rebekah M

    2014-08-13T23:59:59.000Z

    on In co m e In eq ua lity , 1 97 1? 20 12 1970 1980 1990 2000 2010 Year Figure 3.1: Public Mood on Income Inequality, 1971-2012 23 Table 3.1: Do Economic Factors Drive Public Mood Towards Income Inequality? Public Mood of Income Inequalityt?1 0.813 (0...

  2. Evaluating Equality using Parametric Income Distribution Models An exploration of alternative effects using a Dagum Parametric Income Distribution Model

    E-Print Network [OSTI]

    Ortega, Esther Ruiz

    to the study of income policy effects on the distribution of personal income. A parametric model of the Dagum on income data from several countries: Canada, the United States, Italy and Argentina. Therefore, the model and increased unemployment in most of the developed as well as developing countries. For policy- makers

  3. BUILDING A STRONG FOUNDATION.

    E-Print Network [OSTI]

    Linsley, Braddock K.

    BUILDING A STRONG FOUNDATION. UALBANY FACTS. Enrollment: 12,822 undergraduates 4,516 graduate ('14-'15): NYS Resident Tuition: $6,170 Non-NYS Resident Tuition: $17,810 Room, Board, and Fees: $15

  4. STRONG RARE EARTH COBALT QUADRUPOLES

    E-Print Network [OSTI]

    Halbach, K.

    2010-01-01T23:59:59.000Z

    ^3 LBL-8906 STRONG RARE EARTH COBALT QUADRUPOLES tfl Klausowned righu. STRONG RARE EARTH COBALT QUADRUPOLES Klausof i new family of strong Rare Earth Cobalt quadrupoles are

  5. UPSTREAM AND DOWNSTREAM INFLUENCE ON STBLI UNSTEADINESS Upstream and Downstream Influence on the Unsteadiness

    E-Print Network [OSTI]

    Martín, Pino

    UPSTREAM AND DOWNSTREAM INFLUENCE ON STBLI UNSTEADINESS 1 Upstream and Downstream Influence between the incoming flow and the shock motions, as well as the downstream flow and the shock unsteadiness correlate with downstream shock motion. Pirozzoli & Grasso [14] analyzed DNS data of a reflected shock

  6. LOW INCOME ENERGY EFFICIENCY PROGRAM OVERVIEW Background

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9 5 - -/e),,s - 16,3/14 LOW INCOME ENERGY

  7. Effective Energy Behavior Change for Low-Income Weatherization Clients

    Broader source: Energy.gov [DOE]

    This document contains the transcript for the Effective Energy Behavior Change for Low-Income Weatherization Clients webinar presented on May 31, 2012.

  8. Top Incomes in the Long Run of History

    E-Print Network [OSTI]

    Atkinson, Anthony B.; Piketty, Thomas; Saez, Emmanuel

    2012-01-01T23:59:59.000Z

    Spain Portugal Italy Top Percentile Share (in percent)India Singapore Top Percentile Share (in percent) Chinaof the century, top percentile incomes were overwhelmingly

  9. Better Buildings Residential Network Multi-Family & Low-Income...

    Energy Savers [EERE]

    of choice, by providing information and options * Provide loan programs that fill market gaps * Offer resources * Make connections * Serve low- and moderate-income families...

  10. Income Inequality and Mortality: The Costa RIcan Case

    E-Print Network [OSTI]

    Modrek, Sepideh

    2009-01-01T23:59:59.000Z

    The Afflictions of Inequality. London: Routledge. Wilkinson,K. E. (2006). Income inequality and population health: AJ. (2005). Neighbourhood inequality, neighbourhood affluence

  11. Better Buildings Neighborhood Program Multi-Family and Low Income...

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

    Multi-Family and Low Income Peer Exchange Call: Using Partnerships to Drive Demand and Provide Services in Communities Agenda * Call Logistics and Attendance What kind of...

  12. Approaches to Electric Utility Energy Efficiency for Low Income...

    Open Energy Info (EERE)

    Electric Utility Energy Efficiency for Low Income Customers in a Changing Regulatory Environment Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Approaches to Electric...

  13. Exact Measures of Income in a Hyperbolic Economy

    E-Print Network [OSTI]

    Pezzey, Jack

    Exact Measures of Income in a Hyperbolic Economy JOHN PEZZEY EEN0203 #12;Exact Measures of Income in a Hyperbolic Economy John C. V. Pezzey Centre for Resource and Environmental Studies Australian National.K. Draft of 23 January 2002 Abstract. Exact optimal paths are calculated for a closed economy with human

  14. MEASURING AND MODELING INCOME INEQUALITY IN GREECE Income inequality gains significance from its close relationship with social injustice, and it

    E-Print Network [OSTI]

    Chatziantoniou, Damianos

    IN GREECE» ( ) Abstract Income inequality gains significance from its close relationship with social distribution in Greece utilizing alternative data sources and employing several statistic and econometric is the introduction. Chapter 2 presents a detailed literature review of income inequality in Greece. Data

  15. Retirement Income Plan Summary Yeshiva University's Retirement Income Plan, also known as the Basic Plan, is a defined

    E-Print Network [OSTI]

    Emmons, Scott

    Retirement Income Plan Summary Yeshiva University's Retirement Income Plan, also known as the Basic are immediately vested in your contributions to the any of the University's retirement plans. If you are eligible% early withdrawal penalty. Defaulted loans may also impact your eligibility to request additional loans

  16. IIFET 2000 Proceedings U.S. Income Distribution and Gorman Engel Curves for Food

    E-Print Network [OSTI]

    LaFrance, Jeffrey T.

    annual time series data on quintile and top five percentile income ranges and intra-quintile and top five percentile mean incomes. Estimates for the year-to-year income distribution are combined with annual time

  17. "Table HC7.5 Space Heating Usage Indicators by Household Income...

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

    Income, 2005" " Million U.S. Housing Units" ,,"2005 Household Income",,,,,"Below Poverty Line","Eligible for Federal Assistance1" ,"Housing Units (millions)" ,,"Less than...

  18. Regional Income Inequality in Post-1978 China: A Kaldorian Spatial Econometric Approach

    E-Print Network [OSTI]

    Jeon, Yongbok

    2007-01-01T23:59:59.000Z

    2003), “Analyzing Regional Inequality in Post-Mao China in a1996), “Regional Income Inequality and Economic Growth inpermission Regional Income Inequality in Post-1978 China : A

  19. Strong Influence of Coadsorbate Interaction on CO Desorption Dynamics

    Office of Scientific and Technical Information (OSTI)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not Found Item Not Found The item you requested,C. TemperatureProbed by Ultrafast

  20. Hydrodynamic instability in strong media

    SciTech Connect (OSTI)

    Bakhrakh, S.M.; Drennov, O.B.; Kovalev, N.P. [Russian Federal Nuclear Center (Russian Federation)] [and others

    1997-03-05T23:59:59.000Z

    This paper reviews the All Russian Scientific Research Institute of Experimental Physics open publications on hydrodynamic instability in strong media.

  1. Minnesota Energy Resources (Gas)- Low-Income New Construction Rebates

    Broader source: Energy.gov [DOE]

    Minnesota Energy Resources is now offering rebates for non-profits servicing low-income communities. New construction organizations can take advantage of rebates for efficient technologies if the...

  2. Empire District Electric- Low Income New Homes Program

    Broader source: Energy.gov [DOE]

    Empire District Electric offers rebates for the utilization of energy efficient measures and appliances in new, low-income homes. Rebates are available for several types of building insulation,...

  3. Income and Health Spending: Evidence from Oil Price Shocks

    E-Print Network [OSTI]

    Acemoglu, Daron

    Health expenditures as a share of GDP in the United States have more than tripled over the past half-century. A common conjecture is that this is a consequence of rising income. We investigate this hypothesis by instrumenting ...

  4. Oil Prices, External Income, and Growth: Lessons from Jordan

    E-Print Network [OSTI]

    Mohaddes, Kamiar; Raissi, Mehdi

    2011-12-08T23:59:59.000Z

    This paper extends the long-run growth model of Esfahani et al. (2009) to a labour exporting country that receives large inflows of external income - the sum of remittances, FDI and general government transfers - from major oil exporting economies...

  5. Resource handbook for low-income residential retrofits

    SciTech Connect (OSTI)

    Callaway, J.W.; Brenchley, D.L.; Davis, L.J.; Ivey, D.L.; Smith, S.A.; Westergard, E.J.

    1987-04-01T23:59:59.000Z

    The purpose of the handbook is to provide technical assistance to state grantees participating in the Partnerships in Low-Income Residential Retrofit (PILIRR) Program. PILIRR is a demonstration program aimed at identifying innovative, successful approaches to developing public and private support for weatherization of low-income households. The program reflects the basic concept that responsibility for financial support for conservation activities such as low-income residential retrofitting is likely to gradually shift from the DOE to the states and the private sector. In preparing the handbook, PNL staff surveyed over 50 programs that provide assistance to low-income residents. The survey provided information on factors that contribute to successful programs. PNL also studied the winning PILIRR proposals (from the states of Florida, Iowa, Kentucky, Oklahoma and Washington) and identified the approaches proposed and the type of information that would be most helpful in implementing these approaches.

  6. Political competition and Mirrleesian income taxation: A first pass

    E-Print Network [OSTI]

    Bierbrauer, Felix J.; Boyer, Pierre C.

    2011-01-26T23:59:59.000Z

    We study Downsian competition in a Mirrleesian model of income taxation. The competing politicians may di er in competence. If politicians engage in vote-share maximization, the less competent politician's policy proposals are attractive...

  7. Electron Dynamics in Nanostructures in Strong Laser Fields

    SciTech Connect (OSTI)

    Kling, Matthias

    2014-09-11T23:59:59.000Z

    The goal of our research was to gain deeper insight into the collective electron dynamics in nanosystems in strong, ultrashort laser fields. The laser field strengths will be strong enough to extract and accelerate electrons from the nanoparticles and to transiently modify the materials electronic properties. We aimed to observe, with sub-cycle resolution reaching the attosecond time domain, how collective electronic excitations in nanoparticles are formed, how the strong field influences the optical and electrical properties of the nanomaterial, and how the excitations in the presence of strong fields decay.

  8. Influence of Transpiration Suppressants, Sprinkler Irrigation and Moisture Levels on Transpiration and Evapotranspiration 

    E-Print Network [OSTI]

    Gerard, C. J.

    1970-01-01T23:59:59.000Z

    and net radiation data indicated that reflective treatment on tomatoes was effective in reflecting the incoming solar radiation in 1969. Thermoelectric Data Sap flow as influenced by treatments and climatic conditions was evaluated with a thermoelectric...

  9. Smooth Transitions into Medi-Cal: Ensuring Continuity of Coverage for Low Income Health Program Enrollees

    E-Print Network [OSTI]

    Lytle, Elizabeth C; Roby, Dylan H; Lucia, Laurel; Jacobs, Ken; Cabezas, Livier; Pourat, Naderah

    2013-01-01T23:59:59.000Z

    Care Coverage Initiative (HCCI) enrollees with incomes above2012 Total Enrollment (HCCI + MCE) December 2012 Alameda

  10. Electron rescattering in strong-field photodetachment of F$^-$

    E-Print Network [OSTI]

    Hassouneh, O; Shearer, S F C; Brown, A C; van der Hart, H W

    2015-01-01T23:59:59.000Z

    We present ab initio studies of photoelectron spectra for above threshold detachment (ATD) of F$^-$ anions in short, 1300 nm and 1800 nm laser pulses. We identify and assess the importance of electron rescattering in strong-field photodetachment of a negative ion through comparison with an analytic, Keldysh-type approach, demonstrating the capability of ab-initio computation in the challenging near-IR regime. We further assess the influence of the strong electron correlation on the photodetachment.

  11. Utility investments in low-income-energy-efficiency programs

    SciTech Connect (OSTI)

    Brown, M.A. [Oak Ridge National Lab., TN (United States); Beyer, M.A. [Aspen Systems Corp., Oak Ridge, TN (United States); Eisenberg, J.; Power, M. [Economic Opportunity Research Institute, Washington, DC (United States); Lapsa, E.J. [Manhattan Data Systems, Knoxville, TN (United States)

    1994-09-01T23:59:59.000Z

    The objective of this study is to describe the energy-efficiency programs being operated by utilities for low-income customers. The study focuses, in particular, on programs that install major residential weatherization measures free-of-charge to low-income households. A survey was mailed to a targeted list of 600 utility program managers. Follow-up telephone calls were made to key non- respondents, and a random sample of other non-respondents also was contacted. Completed surveys were received from 180 utilities, 95 of which provided information on one or more of their 1992 low-income energy-efficiency programs for a total of 132 individual programs. These 132 utility programs spent a total of $140.6 million in 1992. This represents 27% of the total program resources available to weatherize the dwellings of low-income households in that year. Both the total funding and the number of programs has grown by 29% since 1989. A majority of the 132 programs are concentrated in a few regions of the country (California, the Pacific Northwest, the Upper Midwest, and the Northeast). Although a majority of the programs are funded by electric utilities, gas utilities have a significantly greater average expenditure per participant ($864 vs. $307 per participant). The most common primary goal of low-income energy-efficiency programs operating in 1992 was {open_quotes}to make energy services more affordable to low-income customers{close_quotes}. Only 44% of the programs were operated primarily to provide a cost-effective energy resource. Based on a review of household and measure selection criteria, equity and not the efficiency of resource acquisition appears to dominate the design of these programs.

  12. Recent advances of strong-strong beam-beam simulation

    SciTech Connect (OSTI)

    Qiang, Ji; Furman, Miguel A.; Ryne, Robert D.; Fischer, Wolfram; Ohmi,Kazuhito

    2004-09-15T23:59:59.000Z

    In this paper, we report on recent advances in strong-strong beam-beam simulation. Numerical methods used in the calculation of the beam-beam forces are reviewed. A new computational method to solve the Poisson equation on nonuniform grid is presented. This method reduces the computational cost by a half compared with the standard FFT based method on uniform grid. It is also more accurate than the standard method for a colliding beam with low transverse aspect ratio. In applications, we present the study of coherent modes with multi-bunch, multi-collision beam-beam interactions at RHIC. We also present the strong-strong simulation of the luminosity evolution at KEKB with and without finite crossing angle.

  13. Income over variable costs in a pasture based dairy industry

    E-Print Network [OSTI]

    Phillips, Kenneth Robert

    1990-01-01T23:59:59.000Z

    farms according to past production levels relative to past quota assignment. Quota is lost if production falls below assignment for more than three payment periods (4 weeks per period) in a twelve month interval. Extra quota becomes available... herds. Parameter Units Physical Income/Expense Income Quota milk Manufacture milk Stock sales Other liters/month liters/month NA1 NA A$/month A$/month A$/month A$/month Inputs Milking cows Dry cows Replacements Land Labor Grain Hay...

  14. Holography and strongly correlated systems

    E-Print Network [OSTI]

    Iqbal, Nabil

    2011-01-01T23:59:59.000Z

    In this thesis we apply techniques arising from string theory - gauge-gravity/duality, or holography - to problems associated with strongly coupled quantum field theories under extreme conditions such as finite temperature ...

  15. Optimum Income Taxation and Layo Taxes Pierre Cahucy

    E-Print Network [OSTI]

    Boyer, Edmond

    provides public unemployment insurance and aims at redistributing income. The optimal layo¤ tax is equal to the social cost of job destruction, which amounts to the discounted value of the sum of unemployment bene in "Journal of Public Economics 92, 10-11 (2008) 2003-2019" DOI : 10.1016/j.jpubeco.2007.12.006 #12

  16. Energy and Indoor Environmental Quality Retrofits in Low-Income

    E-Print Network [OSTI]

    environmental measurements and collect energy consumption data. Based on analyses of the data collected fromEnergy and Indoor Environmental Quality Retrofits in Low-Income Apartments ENVIRONMENTAL ENERGY RESEARCH PIER Environmental Research www.energy.ca.gov/research/environmental August 2011 The Issue

  17. Techniques for Dynamic and Prioritized Bandwidth Allocation On Incoming Links

    E-Print Network [OSTI]

    to today, a network administrator has no control on the incoming traffic if the network service does]. This type of traffic appears in general to the network administrator (and to the high management activity of the organization will be called high priority traffic. As of today, a network administrator

  18. A Welcome to Incoming Optics Students from the Director

    E-Print Network [OSTI]

    A Welcome to Incoming Optics Students from the Director It is my great pleasure to welcome you to The Institute of Optics, to join the training for the next generation of leaders in the field. Approximately half of all optics degrees awarded nationwide have been awarded by our institute since its founding

  19. MATERIALS TRANSFER AGREEMENT for incoming item(s)

    E-Print Network [OSTI]

    Northern British Columbia, University of

    MATERIALS TRANSFER AGREEMENT for incoming item(s) To be used when an item(s) is being provided for demonstration or loaner purposes. This Materials Transfer Agreement ("Agreement") is made by and between, the University is interested in receiving from the Provider certain material(s), defined below

  20. Poor Nutrition and Health Concerns in Low Income Population

    E-Print Network [OSTI]

    and foodborne illness, reduced indigent health care costs and improved quality of life. Contact: Dean McPoor Nutrition and Health Concerns in Low Income Population An estimated one out of every six in 1995 as a cooperative endeavor among the Texas A&M AgriLife Extension Service, Texas Health and Human

  1. QER- Comment of Low-income Energy Affordability Network [MA

    Broader source: Energy.gov [DOE]

    Thank you, Secretary Moniz for the opportunity to submit testimony, I am entering this testimony to call attention to the Secretary and DOE staff, that DOE has operated a successful energy efficiency program for low income renters and home owners since DOE’s creation as a department, that leverages hundreds of millions of dollars in utility and other governmental and private investments...

  2. Family Moderate Income Homeowners In New York State

    Broader source: Energy.gov [DOE]

    "Family Moderate Income Homeowners In New York State: Enhancing Resource Accessibility Through Process Improvement and Targeted Outreach," by Residential Energy Efficiency Solutions, July 10, 2012, Arlington, Virginia. Provides an overview of broadening accessibility to financing through process improvement and targeted outreach.

  3. Statistical Mechanics of Money, Income, Debt, and Energy Consumption

    E-Print Network [OSTI]

    Hill, Wendell T.

    Statistical Mechanics of Money, Income, Debt, and Energy Consumption Physics Colloquium Presented in financial markets. Globally, data analysis of energy consumption per capita around the world shows@american.edu Similarly to the probability distribution of energy in physics, the probability distribution of money among

  4. air pollution income: Topics by E-print Network

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

    air pollution income First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 The relationship between air...

  5. Simulating strongly correlated electrons with a strongly interacting Fermi gas

    SciTech Connect (OSTI)

    Thomas, John E. [North Carolina State University

    2013-05-28T23:59:59.000Z

    The quantum many-body physics of strongly-correlated fermions is studied in a degenerate, strongly- interacting atomic Fermi gas, first realized by our group with DOE support in 2002. This system, which exhibits strong spin pairing, is now widely studied and provides an important paradigm for testing predictions based on state-of-the-art many-body theory in fields ranging from nuclear matter to high temperature superfluidity and superconductivity. As the system is strongly interacting, both the superfluid and the normal fluid are nontrivial and of great interest. A central part of our program on Fermi gases is the connection between the study of thermodynamics, supported by DOE and the study of hydrodynamic transport, supported by NSF. This connection is especially interesting in view of a recent conjecture from the string theory community on the concept of nearly perfect normal fluids, which exhibit a minimum ratio of shear viscosity to entropy density in strongly-interacting, scale-invariant systems.

  6. Strong gravitational lensing in a noncommutative black-hole spacetime

    SciTech Connect (OSTI)

    Ding Chikun; Kang Shuai; Chen Changyong; Chen Songbai; Jing Jiliang [Department of Physics and Information Engineering, Hunan Institute of Humanities Science and Technology, Loudi, Hunan 417000 (China); Institute of Physics and Department of Physics, Hunan Normal University, Changsha, Hunan 410081 (China) and Key Laboratory of Low Dimensional Quantum Structures and Quantum Control (Hunan Normal University), Ministry of Education (China)

    2011-04-15T23:59:59.000Z

    Noncommutative geometry may be a starting point to a quantum gravity. We study the influence of the spacetime noncommutative parameter on the strong field gravitational lensing in the noncommutative Schwarzschild black-hole spacetime and obtain the angular position and magnification of the relativistic images. Supposing that the gravitational field of the supermassive central object of the galaxy can be described by this metric, we estimate the numerical values of the coefficients and observables for strong gravitational lensing. In comparison to the Reissner-Norstroem black hole, we find that the influences of the spacetime noncommutative parameter is similar to those of the charge, but these influences are much smaller. This may offer a way to distinguish a noncommutative black hole from a Reissner-Norstroem black hole, and may permit us to probe the spacetime noncommutative constant {theta} by the astronomical instruments in the future.

  7. The SNAP Strong Lens Survey

    E-Print Network [OSTI]

    Phil Marshall; Roger Blandford; Masao Sako

    2005-01-17T23:59:59.000Z

    Basic considerations of lens detection and identification indicate that a wide field survey of the types planned for weak lensing and Type Ia SNe with SNAP are close to optimal for the optical detection of strong lenses. Such a ``piggy-back'' survey might be expected even pessimistically to provide a catalogue of a few thousand new strong lenses, with the numbers dominated by systems of faint blue galaxies lensed by foreground ellipticals. After sketching out our strategy for detecting and measuring these galaxy lenses using the SNAP images, we discuss some of the scientific applications of such a large sample of gravitational lenses: in particular we comment on the partition of information between lens structure, the source population properties and cosmology. Understanding this partitioning is key to assessing strong lens cosmography's value as a cosmological probe.

  8. Kenya-Program for Scaling Up Renewable Energy in Low Income Countries...

    Open Energy Info (EERE)

    Up Renewable Energy in Low Income Countries (SREP) Jump to: navigation, search Name Kenya-Program for Scaling Up Renewable Energy in Low Income Countries (SREP) AgencyCompany...

  9. Popular urban settlements in Athens : a comparative study of low income housing

    E-Print Network [OSTI]

    Kitsiou, Triada

    1981-01-01T23:59:59.000Z

    This study is concerned with aspects of housing and urban development related to the lower income groups in the context of urbanization in Athens, Greece. It identifies and evaluates typical low income housing settlements ...

  10. "Shelter within my reach" : medium rise apartment housing for the middle income group in Karachi, Pakistan

    E-Print Network [OSTI]

    Mahmood, Saman, 1972-

    1999-01-01T23:59:59.000Z

    This thesis identifies the project development processes of medium rise (five storied or less) apartment housing built by the private formal sector, catering to the middle income groups in Karachi, Pakistan. Middle income ...

  11. CommunityOrganizedHouseholdWaterIncreasesNot Only Rural incomes, but AlsoMen’sWork

    E-Print Network [OSTI]

    Corw, Ben; Swallow, Brent; Asamba, Isabella

    2012-01-01T23:59:59.000Z

    average incomes in this group of seven springs. Kipsotet, as1. Characteristics of the seven spring groups Spring Group

  12. Conceptual problems of national income accounting in underdeveloped countries with emphasis on Pakistan

    E-Print Network [OSTI]

    Chowdhury, Abdur Rashid

    1964-01-01T23:59:59.000Z

    of changes in output, income and expenditures of the major sectors. Pinally, one is enabled by these means to study the responses of various economic groups to different conditions over a given time period. National income estimates are, therefore... followed Petty in the late seventeenth century, was considered to be the first scientific estimator of national income. His estimates included national income, national expenditure, and national savings, as well as the distributi. on of these aggregates...

  13. Generation of strongly chaotic beats

    E-Print Network [OSTI]

    I. Sliwa; P. Szlachetka; K. Grygiel

    2007-04-25T23:59:59.000Z

    The letter proposes a procedure for generation of strongly chaotic beats that have been hardly obtainable hitherto. The beats are generated in a nonlinear optical system governing second-harmonic generation of light. The proposition is based on the concept of an optical coupler but can be easily adopted to other nonlinear systems and Chua's circuits.

  14. STRONGLY DISORDERED MAGNETS AND SUPERCONDUCTORS

    E-Print Network [OSTI]

    Fominov, Yakov

    STRONGLY DISORDERED MAGNETS AND SUPERCONDUCTORS: SOLUTION ON BETHE LATTICE. 1. Very brief summary. Bethe lattice model: toy model for SIT transition in disordered superconductors. 5. Solution of Bethe. Collaborators: M. Feigelman, M. Mezard. #12;ALTERNATIVE SCENARIOS OF SUPERCONDUCTOR-INSULATOR TRANSITIONS Fermi

  15. WORKING PAPER N 2007 -39 Income and wealth concentration in Spain in a

    E-Print Network [OSTI]

    Boyer, Edmond

    WORKING PAPER N° 2007 - 39 Income and wealth concentration in Spain in a historical and fiscal and Wealth Concentration in Spain in a Historical and Fiscal Perspective Facundo Alvaredo, Paris School of income and wealth in Spain over the 20th century using personal income and wealth tax return statistics

  16. TOP INCOMES IN THE UNITED STATES AND CANADA OVER THE TWENTIETH CENTURY

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    TOP INCOMES IN THE UNITED STATES AND CANADA OVER THE TWENTIETH CENTURY Emmanuel Saez University of California, Berkeley Abstract This paper presents top income shares series for the United States and Canada over the 20th century. In both countries, top income shares display a U-shaped pattern over the century

  17. Analysis of alternative marketing organizations for improving rice producer income

    E-Print Network [OSTI]

    Guillot, Patrick Dale

    1975-01-01T23:59:59.000Z

    of Depart nt) (Member) (Member) (Member) (Member) December 1975 ABSTRACT Analysis of Alternative Marketing Organizations for Improving Rice Producer income. (December 1975) Patrick Dale Guillot, B. S. , Louisiana State University Chairman of Advisory... of the Blue Ribbon Rice Mills, Inc. This gives ARI milling and storage facilities. Also, AGA has acquired control and ownership of the MGC facilities. Both of these actions are definite moves toward a fully integrated and producer operated organization...

  18. What Drives the Public Mood of Income Inequality 

    E-Print Network [OSTI]

    Myers, Rebekah M

    2014-08-13T23:59:59.000Z

    on Income Inequality Move Opinion? . . . 5 1.3.1 Presidential Agenda Setting . . . . . . . . . . . . . . . . . . . 5 1.3.2 Can the President Move Opinion? . . . . . . . . . . . . . . . . 6 1.3.3 Strategic Presidential Rhetoric... Inequality Move Opinion? 1.3.1 Presidential Agenda Setting The president is elected with expectations that he will implement the policies he advocated for in his platform during his campaign. These issues have been strate- gically predetermined...

  19. Strong-Field Quantum Electrodynamics and Muonic Hydrogen

    E-Print Network [OSTI]

    U. D. Jentschura

    2014-11-14T23:59:59.000Z

    We explore the possibility of a breakdown of perturbative quantum electrodynamics in light muonic bound systems, notably, muonic hydrogen. The average electric field seen by a muon orbiting a proton is shown to be comparable to hydrogenlike Uranium and, notably, larger than the electric field achievable using even the most advanced strong-laser facilities. Following Maltman and Isgur who have shown that fundamental forces such as the meson exchange force may undergo a qualitative change in the strong-coupling regime, we investigate a concomitant possible existence of muon-proton and electron-proton contact interactions, of nonperturbative origin, and their influence on transition frequencies in light one-muon ions.

  20. Strong Interest Inventory Profile with College Profile

    E-Print Network [OSTI]

    Peak, Derek

    Strong Interest Inventory ® Profile with College Profile College Profile developed by Jeffrey P Interest Inventory® Profile JANE SAMPLE Date taken 1.1.2005 F HOW THE STRONG CAN HELP YOU The Strong in your Strong results. Understanding your Strong Profile can help you identify a career focus and begin

  1. Income distribution impacts of climate change mitigation policy in the Susquehanna River Basin Economy

    SciTech Connect (OSTI)

    Oladosu, Gbadebo A [ORNL

    2007-01-01T23:59:59.000Z

    We examine the cost-side income distribution impacts of a carbon tax in the Susquehanna River Basin (SRB) Region of the United States utilizing a computable general equilibrium model. We find the aggregate impacts of a $25/ton carbon tax on the SRB economy are likely to be negative but modest-an approximately one-third of 1% reduction in Gross Regional Product (GRP) in the short-run and double that amount in the long-run. However, unlike many previous studies, we find that the carbon tax is mildly progressive as measured by income bracket changes, per capita equivalent variation, and Gini coefficient changes based on expenditure patterns. The dominant factors affecting the distributional impacts are the pattern of output, income and consumption impacts that affect lower income groups relatively less than higher income ones, an increase in transfer payments favoring lower income groups, and decreased corporate profits absorbed primarily by higher income groups.

  2. Strong Support for MOX Continues

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del SolStrengthening a solid ... Strengthening a solid partnership Posted:Strong

  3. Evaluating the income and employment impacts of gas cooling technologies

    SciTech Connect (OSTI)

    Hughes, P.J. [Oak Ridge National Lab., TN (United States); Laitner, S.

    1995-03-01T23:59:59.000Z

    The purpose of this study is to estimate the potential employment and income benefits of the emerging market for gas cooling products. The emphasis here is on exports because that is the major opportunity for the U.S. heating, ventilating, and air-conditioning (HVAC) industry. But domestic markets are also important and considered here because without a significant domestic market, it is unlikely that the plant investments, jobs, and income associated with gas cooling exports would be retained within the United States. The prospects for significant gas cooling exports appear promising for a variety of reasons. There is an expanding need for cooling in the developing world, natural gas is widely available, electric infrastructures are over-stressed in many areas, and the cost of building new gas infrastructure is modest compared to the cost of new electric infrastructure. Global gas cooling competition is currently limited, with Japanese and U.S. companies, and their foreign business partners, the only product sources. U.S. manufacturers of HVAC products are well positioned to compete globally, and are already one of the faster growing goods-exporting sectors of the U.S. economy. Net HVAC exports grew by over 800 percent from 1987 to 1992 and currently exceed $2.6 billion annually (ARI 1994). Net gas cooling job and income creation are estimated using an economic input-output model to compare a reference case to a gas cooling scenario. The reference case reflects current policies, practices, and trends with respect to conventional electric cooling technologies. The gas cooling scenario examines the impact of accelerated use of natural gas cooling technologies here and abroad.

  4. Trapped surfaces in vacuum arising dynamically from mild incoming radiation

    E-Print Network [OSTI]

    Xinliang An; Jonathan Luk

    2014-09-22T23:59:59.000Z

    In this paper, we study the "minimal requirement" on the incoming radiation that guarantees a trapped surface to form in vacuum. First, we extend the region of existence in Christodoulou's theorem on the formation of trapped surfaces and consequently show that the lower bound required to form a trapped surface can be relaxed. Second, we demonstrate that trapped surfaces form dynamically from a class of initial data which are large merely in a scaling-critical norm. This result is motivated in part by the scaling in Christodoulou's formation of trapped surfaces theorem for the Einstein-scalar field system in spherical symmetry.

  5. Parametric distortion of the optical absorption edge of a magnetic semiconductor by a strong laser field

    SciTech Connect (OSTI)

    Nunes, O.A.C.

    1985-09-15T23:59:59.000Z

    The influence of a strong laser field on the optical absorption edge of a direct-gap magnetic semiconductor is considered. It is shown that as the strong laser intensity increases the absorption coefficient is modified so as to give rise to an absorption tail below the free-field forbidden gap. An application is made for the case of the EuO.

  6. Temperature Dependence of Stark Broadening Dominated by Strong Collisions

    SciTech Connect (OSTI)

    Gigosos, M. A. [Departamento de Optica, Universidad de Valladolid. 47071 Valladolid (Spain) (Spain); Gonzalez, M. A. [Departamento de Fisica Aplicada, Universidad de Valladolid. 47071 Valladolid (Spain); Konjevic, N. [Institute of Physics, P.O. box 68, 11081 Belgrade (Serbia and Montenegro)

    2006-11-22T23:59:59.000Z

    The influence of electron temperature in the broadening of spectral lines dominated by strong collisions has been studied. Computer simulation allows us to study the effects of strong and weak collisions separately. Results shown here are focused on some Sr+ and Ba+ resonance lines as examples of lines broadened dominantly by strong collisions. The exact numerical integration of the perturbation process due to the collision with a single particle permits the evaluation of Weisskopf radius. This parameter is usually defined as rw {approx} 1/v {approx} 1/{radical}T, obtained from Bora approximation that is correct for high temperatures. However, at low temperatures the full integration of the collision process permits to test the relationship rw {approx} 1/T1/6. This calculation has allowed us to study the influence of temperature on the broadening of the lines dominated by strong collisions. This study has been done in two ways : through a plasma simulation and analyzing the calculated Weisskopf radius for an individual collision. The obtained results show that at low temperatures the width of the line increases for increasing temperature as a consequence of an increase of the number of collisions not compensated by the decrease of Weisskopf radius.

  7. Tailoring Strong Lensing Cosmographic Observations

    E-Print Network [OSTI]

    Linder, Eric V

    2015-01-01T23:59:59.000Z

    Strong lensing time delay cosmography has excellent complementarity with other dark energy probes, and will soon have abundant systems detected. We investigate two issues in the imaging and spectroscopic followup required to obtain the time delay distance. The first is optimization of spectroscopic resources. We develop a code to optimize the cosmological leverage under the constraint of constant spectroscopic time, and find that sculpting the lens system redshift distribution can deliver a 40% improvement in dark energy figure of merit. The second is the role of systematics, correlated between different quantities of a given system or model errors common to all systems. We show how the levels of different systematics affect the cosmological parameter estimation, and derive guidance for the fraction of double image vs quad image systems to follow as a function of differing systematics between them.

  8. Building StrongBuilding Strong Clean Water Act Section 404 Permitting Program

    E-Print Network [OSTI]

    Minnesota, University of

    Building StrongBuilding Strong Clean Water Act Section 404 Permitting Program Updates: Jurisdiction 1, 2009 #12;Building StrongBuilding Strong Presentation Outline · Part 1 Clean Water Act Process ­ The problem ­ The merger process #12;Building StrongBuilding Strong Rapanos at the Supreme Court

  9. Facts and Figures January 2007 INCOME AND EXPENDITURE (Excluding Press, CA & Trusts) 2005-06

    E-Print Network [OSTI]

    Travis, Adrian

    Facts and Figures January 2007 INCOME AND EXPENDITURE (Excluding Press, CA & Trusts) 2005-06 2004,928 Breakdown of Research Grant Income 2005-06 £'000 % £'000 Total staff 8602 8570 8,623 Research Councils 89,095 Total 203,886 188,711 Total respondents 2,890 100.0% 3,227 100.0 Breakdown of HEFCE/TDA Income 2005-06

  10. Effect of Income on Appliances in U.S. Households, The

    Reports and Publications (EIA)

    2004-01-01T23:59:59.000Z

    Entails how people live, the factors that cause the most differences in home lifestyle, including energy use in geographic location, socioeconomics and household income.

  11. California Solar Initiative- Low-Income Solar Water Heating Rebate Program

    Broader source: Energy.gov [DOE]

    The California Public Utilities Commission (CPUC) voted in October 2011 to create the California Solar Initiative (CSI) Thermal Low-Income program for single and multifamily residential properties....

  12. Tolerance for Income Inequality and Redistributive Preferences: Cross-nation and Multilevel Perspectives

    E-Print Network [OSTI]

    Tay, Thiam Chye

    2013-01-01T23:59:59.000Z

    Juzhong, ed. 2010. Poverty, Inequality, and Inclusive Growth2008. "Income, inequality, and electoral participation."In Democracy, Inequality, and Representation, ed. Pablo

  13. Incoming Graduate Students in the Social Sciences: How much do they really know about Library Research?

    E-Print Network [OSTI]

    Monroe-Gulick, Amalia; Petr, Julie

    2012-07-01T23:59:59.000Z

    Academic librarians provide information literacy instruction and research services to graduate student. To develop evidence-based library instruction and research services for incoming graduate students, the authors ...

  14. Perturbative gadgets without strong interactions

    E-Print Network [OSTI]

    Yudong Cao; Daniel Nagaj

    2014-08-25T23:59:59.000Z

    Perturbative gadgets are used to construct a quantum Hamiltonian whose low-energy subspace approximates a given quantum $k$-body Hamiltonian up to an absolute error $\\epsilon$. Typically, gadget constructions involve terms with large interaction strengths of order $\\text{poly}(\\epsilon^{-1})$. Here we present a 2-body gadget construction and prove that it approximates a target many-body Hamiltonian of interaction strength $\\gamma = O(1)$ up to absolute error $\\epsilon\\ll\\gamma$ using interactions of strength $O(\\epsilon)$ instead of the usual inverse polynomial in $\\epsilon$. A key component in our proof is a new condition for the convergence of the perturbation series, allowing our gadget construction to be applied in parallel on multiple many-body terms. We also show how to apply this gadget construction for approximating 3- and $k$-body Hamiltonians. The price we pay for using much weaker interactions is a large overhead in the number of ancillary qubits, and the number of interaction terms per particle, both of which scale as $O(\\text{poly}(\\epsilon^{-1}))$. Our strong-from-weak gadgets have their primary application in complexity theory (QMA hardness of restricted Hamiltonians, a generalized area law counterexample, gap amplification), but could also motivate practical implementations with many weak interactions simulating a much stronger quantum many-body interaction.

  15. Cosmography with cluster strong lensing

    E-Print Network [OSTI]

    James Gilmore; Priyamvada Natarajan

    2009-05-29T23:59:59.000Z

    By stacking an ensemble of strong lensing clusters, we demonstrate the feasibility of placing constraints on the dark energy equation of state. This is achieved by using multiple images of sources at two or more distinct redshift planes. The sample of smooth clusters in our simulations is based on observations of massive clusters and the distribution of background galaxies is constructed using the Hubble Deep Field. Our source distribution reproduces the observed redshift distribution of multiply imaged sources in Abell 1689. The cosmology recovery depends on the number of image families with known spectroscopic redshifts and the number of stacked clusters. Our simulations suggest that constraints comparable to those derived from other competing established techniques on a constant dark energy equation of state can be obtained using 10 to 40 clusters with 5 or more families of multiple images. We have also studied the observational errors in the image redshifts and positions. We find that spectroscopic redshifts and high resolution {\\it Hubble Space Telescope} images are required to eliminate confidence contour relaxation relative to the ideal case in our simulations. This suggests that the dark energy equation of state, and other cosmological parameters, can be constrained with existing {\\it Hubble Space Telescope} images of lensing clusters coupled with dedicated ground-based arc spectroscopy.

  16. Low-income communities : technological strategies for nurturing community, empowerment and self-sufficiency at a low-income housing development

    E-Print Network [OSTI]

    O'Bryant, Richard Louis, 1964-

    2004-01-01T23:59:59.000Z

    There are a number of historically familiar and unfamiliar forces at work in low-income communities in the United States. Recurrent forces include rapidly changing economic and demographic trends, Welfare Reform, and the ...

  17. TILT STABILITY, UNIFORM QUADRATIC GROWTH, AND STRONG ...

    E-Print Network [OSTI]

    2012-05-08T23:59:59.000Z

    Tilt stability, variational analysis, subdifferentials, quadratic growth, strong metric .... Some convex analysis. ..... Example 3.5 (Failure of subdifferential continuity).

  18. Radiative decay of keV-mass sterile neutrinos in a strongly magnetized plasma

    E-Print Network [OSTI]

    Alexandra A. Dobrynina; Nicolay V. Mikheev; Georg G. Raffelt

    2015-01-07T23:59:59.000Z

    The radiative decay of sterile neutrinos with typical masses of 10 keV is investigated in the presence of a strong magnetic field and degenerate plasma. Full account is taken of the strongly modified photon dispersion relation relative to vacuum. The limiting cases of relativistic and non-relativistic plasma are analyzed. The decay rate in a strongly magnetized plasma as a function of the electron number density is compared with the un-magnetized case. We find that a strong magnetic field suppresses the catalyzing influence of the plasma on the decay rate.

  19. China's Income Distribution, 1985-2001 Ximing Wu* and Jeffrey M. Perloff**

    E-Print Network [OSTI]

    Perloff, Jeffrey M.

    China's Income Distribution, 1985-2001 Ximing Wu* and Jeffrey M. Perloff** February, 2005 We Bureau of Statistics of China, for explaining many features of the Chinese urban survey. Ximing Wu@are.berkeley.edu. #12;Abstract We employ a new method to estimate China's income distributions using publicly available

  20. Determinants and Income Effects of Commuting and Migration An empirical analysis for Germany after Unification

    E-Print Network [OSTI]

    Pfeifer, Holger

    Determinants and Income Effects of Commuting and Migration An empirical analysis for Germany after differentials between East and West Germany led to massive commuting and migration flows. In this paper we: Human capital and income, Germany, commuting, migration, GSOEP JEL No.: J31, J61, O15 Address: Institute

  1. Enabling energy efficiency for low-income housing in Developing countries using MIT Design Advisor

    E-Print Network [OSTI]

    Ali, Zehra (Zehra Hyder)

    2009-01-01T23:59:59.000Z

    There is a great need to improve energy efficiency of low-income housing, since people who can afford it least have to pay a significant portion of their income to make their homes more habitable or else live with greater ...

  2. Incomes in South Africa since the fall of Apartheid Murray Leibbrandt

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    Incomes in South Africa since the fall of Apartheid by Murray Leibbrandt University of Cape Town in South Africa between 1995 and 2000. We document substantial declines--on the order of 40%--in real Africa #12;Incomes in South Africa since the fall of Apartheid Murray Leibbrandt University of Cape Town

  3. Marketing Compost A Guide for Compost Producers in Low and Middle-Income Countries

    E-Print Network [OSTI]

    Wehrli, Bernhard

    Marketing Compost A Guide for Compost Producers in Low and Middle-Income Countries Sandec #12;Marketing Compost A Guide for Compost Producers in Low and Middle-Income Countries Jonathan Rouse Introduction 7 2 Background 11 2.1 What is marketing? 11 2.2 Why is marketing important for compost producers

  4. Income and Beyond: Taking the Measure of Child Deprivation in the United States

    E-Print Network [OSTI]

    Salzman, Daniel

    not captured by more standard income poverty and material hardship measures. The paper concludes of deprivation . Poverty. Income Child Ind Res DOI 10.1007/s12187-014-9246-6 R. Ciula Italian Revenue Agency in Poverty, Columbia University, New York, NY 10027, USA e-mail: skinner@nccp.org Author's personal copy #12

  5. Social Welfare Policy and Public Assistance for Low-Income Substance Abusers

    E-Print Network [OSTI]

    de Lijser, Peter

    income and health care benefits for many low- income substance abusers. This paper examines functioning has been a point of contention among politicians, physicians, and sub- stance abuse treatment. Individuals with substan- tiated claims were mandated to substance abuse treatment, to having a representative

  6. ORNL/CON-486 WEATHERIZING THE HOMES OF LOW-INCOME

    E-Print Network [OSTI]

    ORNL/CON-486 WEATHERIZING THE HOMES OF LOW-INCOME HOME ENERGY ASSISTANCE PROGRAM CLIENTS Government or any agency thereof. #12;ORNL/CON-486 WEATHERIZING THE HOMES OF LOW-INCOME HOME ENERGY............................................................................................................................17 APPENDIX A RESIDENTIAL NATURAL GAS AND NO. 2 HEATING OIL PRICES AND HEATING DEGREE DAYS

  7. Scheduling incoming and outgoing trucks at cross docking terminals to minimize the storage cost

    E-Print Network [OSTI]

    Sadykov, Ruslan

    Scheduling incoming and outgoing trucks at cross docking terminals to minimize the storage cost Ruslan Sadykov June 14, 2012 Abstract Cross docking terminals allow companies to reduce storage and trans- portation costs in a supply chain. At these terminals, products of different types from incoming trucks

  8. Weak-strong clustering transition in renewing compressible flows

    E-Print Network [OSTI]

    Ajinkya Dhanagare; Stefano Musacchio; Dario Vincenzi

    2014-11-01T23:59:59.000Z

    We investigate the statistical properties of Lagrangian tracers transported by a time-correlated compressible renewing flow. We show that the preferential sampling of the phase space performed by tracers yields significant differences between the Lagrangian statistics and its Eulerian counterpart. In particular, the effective compressibility experienced by tracers has a non-trivial dependence on the time correlation of the flow. We examine the consequence of this phenomenon on the clustering of tracers, focusing on the transition from the weak- to the strong-clustering regime. We find that the critical compressibility at which the transition occurs is minimum when the time correlation of the flow is of the order of the typical eddy turnover time. Further, we demonstrate that the clustering properties in time-correlated compressible flows are non-universal and are strongly influenced by the spatio-temporal structure of the velocity field.

  9. Weak-strong clustering transition in renewing compressible flows

    E-Print Network [OSTI]

    Dhanagare, Ajinkya; Vincenzi, Dario

    2014-01-01T23:59:59.000Z

    We investigate the statistical properties of Lagrangian tracers transported by a time-correlated compressible renewing flow. We show that the preferential sampling of the phase space performed by tracers yields significant differences between the Lagrangian statistics and its Eulerian counterpart. In particular, the effective compressibility experienced by tracers has a non-trivial dependence on the time correlation of the flow. We examine the consequence of this phenomenon on the clustering of tracers, focusing on the transition from the weak- to the strong-clustering regime. We find that the critical compressibility at which the transition occurs is minimum when the time correlation of the flow is of the order of the typical eddy turnover time. Further, we demonstrate that the clustering properties in time-correlated compressible flows are non-universal and are strongly influenced by the spatio-temporal structure of the velocity field.

  10. Investigating the book-tax income gap : factors which affect the gap and details regarding its most significant component

    E-Print Network [OSTI]

    Seidman, Jeri

    2008-01-01T23:59:59.000Z

    (cont.) In total, my thesis suggests that recent changes in the book-tax income gap may be exogenous and transitory, due to changes to the calculation of book income, general business conditions or other factors which ...

  11. Context Interchange Mediation for Semantic Interoperability and Dynamic Integration of Autonomous Information Sources in the Fixed Income Securities Industry

    E-Print Network [OSTI]

    Siegel, Michael

    2003-02-10T23:59:59.000Z

    We examine semantic interoperability problems in the fixed income securities industry and propose a knowledge representation architecture for context interchange ...

  12. Strong SOCP Relaxations for Optimal Power Flow

    E-Print Network [OSTI]

    Burak Kocuk

    2015-04-24T23:59:59.000Z

    Apr 24, 2015 ... ... all this computed within 157.20 seconds on a modest personal computer. Overall, the proposed strong SOCP relaxations provide a practical ...

  13. Utilizing Nanofabrication to Construct Strong, Luminescent Materials...

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

    mechanical strength and hardness of these nanocomposite materials are higher than polycarbonate and some carbon nanotube reinforced nanocomposites. Strong luminescence is...

  14. The justification of 'Two-Level Approximation' in strong light-matter interaction

    E-Print Network [OSTI]

    Faheel Ather Hashmi; Shi-Yao Zhu

    2014-06-02T23:59:59.000Z

    We investigate the influence of the additional third level on the dynamic evolution of a Two-Level system interacting with a coherent field in the strong coupling regime where Rotating Wave Approximation is not valid. We find that the additional level has great influence on the evolution of the system population. Our results show that the Two-Level model is not a good approximation in this strong light-matter coupling regime. We further investigate the parameter space where the Two-Level model can still be justified.

  15. Implications of Strong-Rate-Weakening Friction

    E-Print Network [OSTI]

    Greer, Julia R.

    Implications of Strong-Rate- Weakening Friction for the Length-Scale Dependence of the Strength · Rapid transitions between high static friction and very low dynamic friction · Leads to slip-pulse rupture · Slip pulses are extremely localized and have strong positive feedback between friction and slip

  16. US Army Corps of Engineers BUILDING STRONG

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ;BUILDING STRONG® Mission and functions Office Structure IG Issue Sources Assistance & Investigations and Inquiries Conduct Compliance/Systemic Inspections Teach and Train 3 #12;BUILDING STRONG® Office Structure Par 005 / Office of Engineer Inspector General 01 *Supv Engineer Inspector General GS-15 02 Engineer

  17. Adaptive wavelet deconvolution for strongly mixing sequences

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Adaptive wavelet deconvolution for strongly mixing sequences Christophe Chesneau Abstract square error over Besov balls, we explore the performances of two wavelet estimators: a standard linear, Strongly mixing, Adap- tivity, Wavelets, Hard thresholding. AMS 2000 Subject Classifications: 62G07, 62G20

  18. US Army Corps of Engineers BUILDING STRONG

    E-Print Network [OSTI]

    US Army Corps of Engineers

    in accordance with NRC disposal regulations at the time NRC disposal regulation rescinded in 1981 FUSRAP development. #12;BUILDING STRONG® 2010 Work Plan Gas Pipeline Relocation Site Infrastructure Development Trailers and Parking Area 10 #12;BUILDING STRONG® 11 Water Treatment Plant & Pipeline Work Trailer Site

  19. Seismic switch for strong motion measurement

    DOE Patents [OSTI]

    Harben, Philip E. (Oakley, CA); Rodgers, Peter W. (Santa Barbara, CA); Ewert, Daniel W. (Patterson, CA)

    1995-01-01T23:59:59.000Z

    A seismic switching device that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period.

  20. Seismic switch for strong motion measurement

    DOE Patents [OSTI]

    Harben, P.E.; Rodgers, P.W.; Ewert, D.W.

    1995-05-30T23:59:59.000Z

    A seismic switching device is described that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period. 11 figs.

  1. Genealogy of a Wright Fisher model with strong seed bank Jochen Blath, Bjarki Eldon, Adrian Gonzalez Casanova, Noemi Kurt

    E-Print Network [OSTI]

    Blath, Jochen

    Genealogy of a Wright Fisher model with strong seed bank component Jochen Blath, Bjarki Eldon, Adri of the genealogy of a Wright-Fisher population model under the influence of a strong seed-bank effect. More or long genealogical jumps (the latter modeling the effect of seed-dormancy). We assume that the length

  2. Low-income communities in World Heritage Cities : revitalizing neighborhoods in Tunis and Quito

    E-Print Network [OSTI]

    Young, T. Luke, 1972-

    2000-01-01T23:59:59.000Z

    Since the 1970s, international preservation and funding agencies have promoted revitalization projects in developing countries aiming to, among other things, benefit low-income communities. For the most part, these projects ...

  3. Low-income housing : alternative strategies for building construction and project control

    E-Print Network [OSTI]

    Sultan, Javed

    1982-01-01T23:59:59.000Z

    Housing low-income groups, who cannot afford even the most minimal shelter, remains a dominant issue in most developing countries. However, all the solutions advanced so far depend on large investments, either by the ...

  4. Displacement, politics and governance : access to low-income housing in a Beirut suburb

    E-Print Network [OSTI]

    Bou Akar, Hiba

    2005-01-01T23:59:59.000Z

    Lebanon witnessed large-scale phases of internal displacement during and after its civil war (1975-1990). This study analyzes access to low-income housing for a Lebanese Shiites group which has already experienced two ...

  5. An alternative approach for low income housing in Algeria : housing cooperative

    E-Print Network [OSTI]

    Khellaf, Assia

    1983-01-01T23:59:59.000Z

    The population which suffers most directly from deficit in housing, in developing countries are the low income populations. Why has the problem been allowed to develop, and why have solutions been not forthcoming? There ...

  6. New Hampshire Electric Co-Op- Low-Income Energy Assistance Grant Program

    Broader source: Energy.gov [DOE]

    The Energy Assistance Program is designed to help NHEC's income-qualified members manage energy use with the goal of lowering total energy costs. Qualified members living in an apartment or house,...

  7. A credit risk management model for a portfolio of low-income consumer loans in Mexico

    E-Print Network [OSTI]

    Jiménez Montesinos, Jorge Alberto

    2014-01-01T23:59:59.000Z

    Low-income consumer lending (LICL) in Latin America has experienced a boom in recent years. This has attracted the interest of a large number of financial players eager to capture a portion in this still under-banked ...

  8. The relationship between income, health status, and health expenditures in the United States

    E-Print Network [OSTI]

    Bueno, David

    2011-01-01T23:59:59.000Z

    The relationship between income and health has important implications for policy makers and businesses, and will continue to receive attention as healthcare reform takes hold in the U.S. Most existing literature looks at ...

  9. Key worker housing : a demand analysis of middle-income workforce housing in eastern Massachusetts

    E-Print Network [OSTI]

    Sacks, Sean D

    2005-01-01T23:59:59.000Z

    The Boston Metropolitan Area is one of the most expensive places to live in the United States. In recent years studies have speculated that middle-income workers have had to endure increased commute times as they have moved ...

  10. Promoting Enrollment of Low Income Health Program Participants in Covered California

    E-Print Network [OSTI]

    Lytle, Elizabeth C.; Roby, Dylan H.; Lucia, Laurel; Cabezas, Livier; Pourat, Nadereh

    2013-01-01T23:59:59.000Z

    5. Estimate based on LIHP-HCCI enrollment trends from theCare Coverage Initiative (HCCI) enrollees with incomes abovechose to offer services to HCCI enrollees. 3 In December

  11. City of Tallahassee Utilities- Low-Income Energy Efficiency Grant Programs

    Broader source: Energy.gov [DOE]

    City of Tallahassee Utilities offers two different grants that encourage low-income residents to improve the energy efficiency of homes. Both programs require a free home energy audit to be...

  12. Impacts of Climate Conditions and Adaptations on Agricultural Output and Household Income in Inner Mongolia, China

    E-Print Network [OSTI]

    Chen, Wenjuan

    2014-07-31T23:59:59.000Z

    between rural agricultural production/income generation, climate factors and adaptive activities in the dryland system. Two respective multiple regression models on grain and livestock production were built with secondary panel data in Inner Mongolia from...

  13. The Effect of Growth Volatility on Income Inequality Ho-Chuan (River) Huang

    E-Print Network [OSTI]

    Ahmad, Sajjad

    positively affects growth. Barro (2000) uncovers a nonlinear inequality-growth nexus, with inequality growth in low-income ones. Rather than examining the volatility-growth or the inequality-growth linkages

  14. The forgotten class : reconceptualizing contemporary middle-income housing in New York City

    E-Print Network [OSTI]

    Milchman, Karina (Karina Faye)

    2013-01-01T23:59:59.000Z

    New York City's costly real estate poses housing affordability challenges for not only low- or even moderate-income households, but also for the so-called "middle class." Because New York is predominantly a renter's market, ...

  15. Higher occupancy humanism : the trade-offs for encouraging middle income housing in a global city

    E-Print Network [OSTI]

    Konishi, Ryunosuke, 1975-

    2003-01-01T23:59:59.000Z

    In high density urban areas where the land acquisition and construction cost components are significant relative to total development costs, the market typically supplies a high-income housing product in order to justify ...

  16. Low income housing tax credit properties : non-profit disposition strategies in the Commonwealth

    E-Print Network [OSTI]

    Lew-Hailer, Lillian

    2007-01-01T23:59:59.000Z

    This thesis examines how non-profit owners in Massachusetts have maintained affordability and ownership of Low-Income Housing Tax Credit (LIHTC) properties after the initial fifteen-year compliance period, at the lowest ...

  17. Urban settlement design, Seoul, Korea : a comparative study for low-income housing

    E-Print Network [OSTI]

    Je, Hae-Seong

    1982-01-01T23:59:59.000Z

    The study proposes an alternative design approach for urban dwelling environments of the low-income sectors in Seoul, Korea, based upon a comparative evaluation of the physical and socio-economic performance of the existing ...

  18. Community transportation : alternative transportation provision in a low-income neighborhoods in southeast Atlanta

    E-Print Network [OSTI]

    Alexander, James W., 1977-

    2004-01-01T23:59:59.000Z

    Regional transit agencies are ineffective at meeting many of the basic transportation needs of a clustered "Study Area" of low-income Atlanta neighborhoods. For transit dependant residents in the Study Area, getting to the ...

  19. Equitable economic energy efficiency : creating good jobs in low-income efficiency programming

    E-Print Network [OSTI]

    Sarin, Amit

    2009-01-01T23:59:59.000Z

    Energy efficiency is an important consideration in energy policy-making. So, a federal program aimed at funding "energy efficiency retrofits" for low-income households could be an important step in increasing the overall ...

  20. Global economic changes and income inequality: a test of four competing models

    E-Print Network [OSTI]

    Morris, Theresa Marie

    1996-01-01T23:59:59.000Z

    GLOBAL ECONOMIC CHANGES AND INCOME INEQUALITY: A TEST OF FOUR COMPETING MODELS A Thesis by THERESA MARK MORRIS Submitted to the OIEce of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1996 Major Subject: Sociology GLOBAL ECONOMIC CHANGES AND INCOME INEQUALITY: A TEST OF FOUR COMPETING MODELS A Thesis by THERESA MARIE MORRIS Submitted to Texas ARM University in partial fulfillment of the requirements...

  1. The Role of Acculturation in Nutrition Behaviors among Low Income Hispanic Women Living in Texas

    E-Print Network [OSTI]

    Atehortua, Nelson

    2012-10-19T23:59:59.000Z

    THE ROLE OF ACCULTURATION IN NUTRITION BEHAVIORS AMONG LOW INCOME HISPANIC WOMEN LIVING IN TEXAS A Dissertation by NELSON ALBERTO ATEHORTUA Submitted to the Office of Graduate Studies of Texas A&M University in partial... in Texas Copyright 2012 Nelson Alberto Atehortua THE ROLE OF ACCULTURATION IN NUTRITION BEHAVIORS AMONG LOW INCOME HISPANIC WOMEN LIVING IN TEXAS A Dissertation by NELSON ALBERTO ATEHORTUA Submitted to the Office of Graduate Studies...

  2. Household income pooling and the demand for food: does family financial structure matter?

    E-Print Network [OSTI]

    Perusquia Corres, Ernesto

    2009-06-02T23:59:59.000Z

    HOUSEHOLD INCOME POOLING AND THE DEMAND FOR FOOD: DOES FAMILY FINANCIAL STRUCTURE MATTER? A Dissertation by ERNESTO PERUSQUIA CORRES 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 August 2006 Major Subject: Agricultural Economics HOUSEHOLD INCOME POOLING AND THE DEMAND FOR FOOD: DOES FAMILY FINANCIAL STRUCTURE MATTER? A Dissertation by ERNESTO PERUSQUIA CORRES Submitted to the Office of Graduate...

  3. Making It Happen: Achieving Energy Efficiency in Multi-Family Buildings Housing Low-Income Tenants

    E-Print Network [OSTI]

    Haun, C. R.

    1985-01-01T23:59:59.000Z

    convert single-family, commercial, industrial, and public buildings into energy efficient structures have not been readily transferable to multi-family buildings. Consequently, with few exceptions, the knot has remained a complex tangle of variables...-family residences owned by low-income people, they undoubtedly would object to wide- spread public investment in commercial, income- producing properties. The excepi~ion to this generalization is the national Solar Energy and Energy Conservation Bank...

  4. Nuclear physics from strong coupling QCD

    E-Print Network [OSTI]

    Michael Fromm; Philippe de Forcrand

    2009-12-14T23:59:59.000Z

    The strong coupling limit (beta_gauge = 0) of QCD offers a number of remarkable research possibilities, of course at the price of large lattice artifacts. Here, we determine the complete phase diagram as a function of temperature T and baryon chemical potential mu_B, for one flavor of staggered fermions in the chiral limit, with emphasis on the determination of a tricritical point and on the T ~ 0 transition to nuclear matter. The latter is known to happen for mu_B substantially below the baryon mass, indicating strong nuclear interactions in QCD at infinite gauge coupling. This leads us to studying the properties of nuclear matter from first principles. We determine the nucleon-nucleon potential in the strong coupling limit, as well as masses m_A of nuclei as a function of their atomic number A. Finally, we clarify the origin of nuclear interactions at strong coupling, which turns out to be a steric effect.

  5. Power transfer through strongly coupled resonances

    E-Print Network [OSTI]

    Kurs, André

    2007-01-01T23:59:59.000Z

    Using self-resonant coils in a strongly coupled regime, we experimentally demonstrate efficient non-radiative power transfer over distances of up to eight times the radius of the coils. We use this system to transfer 60W ...

  6. The attenuation of strong shock waves

    E-Print Network [OSTI]

    Kirkpatrick, Ronald Crecelius

    1963-01-01T23:59:59.000Z

    THE ATTENUATION OF STRONG SHOCK WAVES A Thesis By Ronald Crecelius Kirkpatrick Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... May 1963 Major Subject: Physics. THE ATTENUATION OF STRONG SHOCK WAVES A Thesis By Ronald Crecelius Kirkpatrick Approved as to style and content by: (Chairman of Committee (He of Departme ) May 1963 TABLE OF CONTENTS INT R ODU C TI ON ~Pe e...

  7. Strong Nernst-Ettingshausen effect in folded graphene

    E-Print Network [OSTI]

    Friedemann Queisser; Ralf Schützhold

    2013-01-17T23:59:59.000Z

    We study electronic transport in graphene under the influence of a transversal magnetic field $\\f{B}(\\f{r})=B(x)\\f{e}_z$ with the asymptotics $B(x\\to\\pm\\infty)=\\pm B_0$, which could be realized via a folded graphene sheet in a constant magnetic field, for example. By solving the effective Dirac equation, we find robust modes with a finite energy gap which propagate along the fold -- where particles and holes move in opposite directions. Exciting these particle-hole pairs with incident photons would then generate a nearly perfect charge separation and thus a strong magneto-thermoelectric (Nernst-Ettingshausen) or magneto-photoelectric effect -- even at room temperature.

  8. Shock waves in strongly coupled plasmas

    SciTech Connect (OSTI)

    Khlebnikov, Sergei; Kruczenski, Martin; Michalogiorgakis, Georgios [Department of Physics, Purdue University, 525 Northwestern Avenue, West Lafayette, Indiana 47907 (United States)

    2010-12-15T23:59:59.000Z

    Shock waves are supersonic disturbances propagating in a fluid and giving rise to dissipation and drag. Weak shocks, i.e., those of small amplitude, can be well described within the hydrodynamic approximation. On the other hand, strong shocks are discontinuous within hydrodynamics and therefore probe the microscopics of the theory. In this paper, we consider the case of the strongly coupled N=4 plasma whose microscopic description, applicable for scales smaller than the inverse temperature, is given in terms of gravity in an asymptotically AdS{sub 5} space. In the gravity approximation, weak and strong shocks should be described by smooth metrics with no discontinuities. For weak shocks, we find the dual metric in a derivative expansion, and for strong shocks we use linearized gravity to find the exponential tail that determines the width of the shock. In particular, we find that, when the velocity of the fluid relative to the shock approaches the speed of light v{yields}1 the penetration depth l scales as l{approx}(1-v{sup 2}){sup 1/4}. We compare the results with second-order hydrodynamics and the Israel-Stewart approximation. Although they all agree in the hydrodynamic regime of weak shocks, we show that there is not even qualitative agreement for strong shocks. For the gravity side, the existence of shock waves implies that there are disturbances of constant shape propagating on the horizon of the dual black holes.

  9. Strong converse theorems using Rényi entropies

    E-Print Network [OSTI]

    Felix Leditzky; Nilanjana Datta

    2015-06-08T23:59:59.000Z

    We use a R\\'enyi entropy approach to prove strong converse theorems for certain information-theoretic tasks which involve local operations and quantum (or classical) communication between two parties. These include state redistribution, coherent state merging, quantum state splitting, randomness extraction against quantum side information, and data compression with quantum side information. The method we employ in proving these results extends ideas developed by Sharma [arXiv:1404.5940] to prove the strong converse theorem for state merging. For state redistribution, we prove the strong converse property for the boundary of the entire achievable rate region in the $(e,q)$-plane, where $e$ and $q$ denote the entanglement cost and quantum communication cost, respectively. This extends a recent strong converse theorem for the quantum communication cost of state redistribution, proved by Berta et al. [arXiv:1409.4338]. For the other tasks as well, we provide new proofs for strong converse theorems which were previously established using smooth entropies.

  10. Strong Equivalence of Qualitative Optimization Problems

    E-Print Network [OSTI]

    Faber, Wolfgang; Woltran, Stefan

    2011-01-01T23:59:59.000Z

    We introduce the framework of qualitative optimization problems (or, simply, optimization problems) to represent preference theories. The formalism uses separate modules to describe the space of outcomes to be compared (the generator) and the preferences on outcomes (the selector). We consider two types of optimization problems. They differ in the way the generator, which we model by a propositional theory, is interpreted: by the standard propositional logic semantics, and by the equilibrium-model (answer-set) semantics. Under the latter interpretation of generators, optimization problems directly generalize answer-set optimization programs proposed previously. We study strong equivalence of optimization problems, which guarantees their interchangeability within any larger context. We characterize several versions of strong equivalence obtained by restricting the class of optimization problems that can be used as extensions and establish the complexity of associated reasoning tasks. Understanding strong equiv...

  11. Generalized Strong Curvature Singularities and Cosmic Censorship

    E-Print Network [OSTI]

    W. Rudnicki; R. J. Budzynski; W. Kondracki

    2002-03-19T23:59:59.000Z

    A new definition of a strong curvature singularity is proposed. This definition is motivated by the definitions given by Tipler and Krolak, but is significantly different and more general. All causal geodesics terminating at these new singularities, which we call generalized strong curvature singularities, are classified into three possible types; the classification is based on certain relations between the curvature strength of the singularities and the causal structure in their neighborhood. A cosmic censorship theorem is formulated and proved which shows that only one class of generalized strong curvature singularities, corresponding to a single type of geodesics according to our classification, can be naked. Implications of this result for the cosmic censorship hypothesis are indicated.

  12. Thermoelectric transport through strongly correlated quantum dots

    E-Print Network [OSTI]

    Costi, T A; 10.1103/PhysRevB.81.235127

    2010-01-01T23:59:59.000Z

    The thermoelectric properties of strongly correlated quantum dots, described by a single level Anderson model coupled to conduction electron leads, is investigated using Wilson's numerical renormalization group method. We calculate the electronic contribution, $K_{\\rm e}$, to the thermal conductance, the thermopower, $S$, and the electrical conductance, $G$, of a quantum dot as a function of both temperature, $T$, and gate voltage, ${\\rm v}_g$, for strong, intermediate and weak Coulomb correlations, $U$, on the dot. For strong correlations and in the Kondo regime, we find that the thermopower exhibits two sign changes, at temperatures $T_{1}({\\rm v}_g)$ and $T_{2}({\\rm v}_g)$ with $T_{1}law in ...

  13. Combinatorics of Lattice QCD at Strong Coupling

    E-Print Network [OSTI]

    Wolfgang Unger

    2014-11-17T23:59:59.000Z

    Thermodynamics in the strong coupling limit of lattice QCD has features which may be similar to those of continuum QCD, such as a chiral critical end point and a nuclear liquid gas transition. Here I compare the combinatorics of staggered and Wilson fermions in the strong coupling limit for arbitrary number of colors and flavors. The partition functions can be considered as an expansions in hadronic spatial hoppings from the static limit, where both discretizations can be expressed via formulae with coefficients of distinct combinatorial interpretation. The corresponding multiplicites of hadronic states are evaluated using generalizations of Catalan numbers and Lucas polynomials. I outline how quantum Monte Carlo simulations can be carried out in general, and summarize recent results on the gauge corrections to the strong coupling limit.

  14. Income and Cost Analysis: Cooperative Cotton Gins and Cooperative Supply Associations of Texas, Season 1949-50.

    E-Print Network [OSTI]

    Paulson, W. E.

    1955-01-01T23:59:59.000Z

    Income and Cost Analysis Cooperative Cotton Gzns and Cooperative SuppLy * As~ociations of Texas, Season 1949-50 in cooperation with the UNITED STATES DEPARTMENT OF AGRICULTURE TEXAS AGRICULTURAL EXPERIMENT STATION R. D. LEWIS. DIRECTOR.... COLLEGE STATION. TEXAS DIGEST There were significant changes in ginning incomes and ginning costs from the period 1932-38 to' the season 1949-50, For like volumes of ginning, costs increased by 300 percent; ginning income in- creased by 220 percent. I...

  15. Ultrafast dynamics of strongly coupled quantum dot-nanocavity systems

    E-Print Network [OSTI]

    Kai Müller; Kevin A. Fischer; Armand Rundquist; Constantin Dory; Konstantinos G. Lagoudakis; Tomas Sarmiento; Victoria Borish; Yousif A. Kelaita; Jelena Vu?kovi?

    2015-03-18T23:59:59.000Z

    We investigate the influence of exciton-phonon coupling on the dynamics of a strongly coupled quantum dot-photonic crystal cavity system and explore the effects of this interaction on different schemes for non-classical light generation. By performing time-resolved measurements, we map out the detuning-dependent polariton lifetime and extract the spectrum of the polariton-to-phonon coupling. Photon-blockade experiments are presented for different pulse-length and detuning conditions that are in very good agreement with quantum-optical simulations; we demonstrate that achieving high-fidelity photon blockade requires an intricate understanding of this parameter space. Furthermore, we show that detuned photon blockade, which is more efficient than resonant photon blockade, is also more dramatically affected by phonons. Finally, we achieve coherent control of the polariton states of a strongly coupled system and demonstrate that their efficient coupling to phonons can be exploited for novel concepts in high-fidelity single photon generation.

  16. Impact of 2001 Building Technology, state and community programs on United States employment and wage income

    SciTech Connect (OSTI)

    MJ Scott; DJ Hostick; DB Elliott

    2000-03-20T23:59:59.000Z

    The Department of Energy Office of Building Technology, State and Community Programs (BTS) is interested in assessing the potential economic impacts of its portfolio of programs on national employment and income. A special purpose version of the IMPLAN input-output model allied In Build is used in this study of all 38 BTS programs included in the FY2001 federal budget. Energy savings, investments, and impacts on U.S. national employment and wage income are reported by program for selected years to the year 2030. Energy savings from these programs have the potential of creating a total of nearly 332,000 jobs and about $5.3 billion in wage income (1995$) by the year 2030. Because the required investments to achieve these savings are capital intensive, the net effect after investment is 304,000 jobs and $5.0 billion.

  17. Impact of the FY 2005 Weatherization and Intergovernmental Program on United States Employment and Earned Income

    SciTech Connect (OSTI)

    Scott, Michael J.; Anderson, David M.; Belzer, David B.; Cort, Katherine A.; Dirks, James A.; Elliott, Douglas B.; Hostick, Donna J.

    2004-08-31T23:59:59.000Z

    The Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) is interested in assessing the potential economic impacts of its portfolio of subprograms on national employment and income. A special purpose version of the IMPLAN input-output model called ImBuild II is used in this study of 20 subprograms of the Weatherization and Intergovernmental Program contained in the EERE final FY 2005 budget request to the Office of Management and Budget on February 2, 2004. Energy savings, investments, and impacts on U.S. national employment and earned income are reported by subprogram for selected years to the year 2030. Energy savings and investments from these subprograms have the potential of creating a total of 228,000 jobs and about $3.1 billion in earned income (2003$) by the year 2030.

  18. Nonlinear relativistic single-electron Thomson scattering power spectrum for incoming laser of arbitrary intensity

    SciTech Connect (OSTI)

    Alvarez-Estrada, R. F. [Departamento de Fisica Teorica I, Facultad de Ciencias Fisicas, Universidad Complutense, 28040 Madrid (Spain); Pastor, I.; Guasp, J.; Castejon, F. [Asociacion Euratom/Ciemat para Fusion, Avenida Complutense 22, 28040 Madrid (Spain)

    2012-06-15T23:59:59.000Z

    The classical nonlinear incoherent Thomson scattering power spectrum from a single relativistic electron with incoming laser radiation of any intensity, investigated numerically by the present authors in a previous publication, displayed both an approximate quadratic behavior in frequency and a redshift of the power spectrum for high intensity incoming radiation. The present work is devoted to justify, in a more general setup, those numerical findings. Those justifications are reinforced by extending suitably analytical approaches, as developed by other authors. Moreover, our analytical treatment exhibits differences between the Doppler-like frequencies for linear and circular polarization of the incoming radiation. Those differences depend nonlinearly on the laser intensity and on the electron initial velocity and do not appear to have been displayed by previous authors. Those Doppler-like frequencies and their differences are validated by new Monte Carlo computations beyond our previuos ones and reported here.

  19. Impact of the FY 2005 Building Technologies Program on United States Employment and Earned Income

    SciTech Connect (OSTI)

    Scott, Michael J.; Anderson, Dave M.; Belzer, David B.; Cort, Katherine A.; Dirks, James A.; Elliott, Douglas B.; Hostick, Donna J.

    2004-08-31T23:59:59.000Z

    The Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) is interested in assessing the potential economic impacts of its portfolio of subprograms on national employment and income. A special purpose version of the IMPLAN input-output model called ImBuild II is used in this study of all 21 Building Technologies Program subprograms in the EERE final FY 2005 budget request to the Office of Management and Budget on February 2, 2004. Energy savings, investments, and impacts on U.S. national employment and earned income are reported by subprogram for selected years to the year 2030. Energy savings and investments from these subprograms have the potential of creating a total of 396,000 jobs and about $5.6 billion in earned income (2003$) by the year 2030.

  20. Impact of the FY 2009 Building Technologies Program on United States Employment and Earned Income

    SciTech Connect (OSTI)

    Livingston, Olga V.; Scott, Michael J.; Hostick, Donna J.; Dirks, James A.; Cort, Katherine A.

    2008-06-17T23:59:59.000Z

    The Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) is interested in assessing the potential economic impacts of its portfolio of subprograms on national employment and income. A special purpose input-output model called ImSET is used in this study of 14 Building Technologies Program subprograms in the EERE final FY 2009 budget request to the Office of Management and Budget in February 2008. Energy savings, investments, and impacts on U.S. national employment and earned income are reported by subprogram for selected years to the year 2025. Energy savings and investments from these subprograms have the potential of creating a total of 258,000 jobs and about $3.7 billion in earned income (2007$) by the year 2025.

  1. Thermoelectric transport through strongly correlated quantum dots

    E-Print Network [OSTI]

    T. A. Costi; V. Zlatic

    2010-07-08T23:59:59.000Z

    The thermoelectric properties of strongly correlated quantum dots, described by a single level Anderson model coupled to conduction electron leads, is investigated using Wilson's numerical renormalization group method. We calculate the electronic contribution, $K_{\\rm e}$, to the thermal conductance, the thermopower, $S$, and the electrical conductance, $G$, of a quantum dot as a function of both temperature, $T$, and gate voltage, ${\\rm v}_g$, for strong, intermediate and weak Coulomb correlations, $U$, on the dot. For strong correlations and in the Kondo regime, we find that the thermopower exhibits two sign changes, at temperatures $T_{1}({\\rm v}_g)$ and $T_{2}({\\rm v}_g)$ with $T_{1}< T_{2}$. Such sign changes in $S(T)$ are particularly sensitive signatures of strong correlations and Kondo physics. The relevance of this to recent thermopower measurements of Kondo correlated quantum dots is discussed. We discuss the figure of merit, power factor and the degree of violation of the Wiedemann-Franz law in quantum dots. The extent of temperature scaling in the thermopower and thermal conductance of quantum dots in the Kondo regime is also assessed.

  2. US Army Corps of Engineers BUILDING STRONG

    E-Print Network [OSTI]

    US Army Corps of Engineers

    resources challenges: · Lack of a national water resources Vision to elevate water infrastructure Securing the Nation's Future Through Water Click link to view video #12;BUILDING STRONG® National Water Demand for Water Flood Risk Water Quality Persistent Conflict Energy Environmental Values 3 #12;BUILDING

  3. Products, weak topologies, quotients and strong topologies.

    E-Print Network [OSTI]

    Ferri, Stefano

    Products, weak topologies, quotients and strong topologies. Stefano Ferri Abstract Again something from finite products of metric spaces, which are well known from the course Analysis I. Given two metric spaces (X, d) and (Y, ) we define the product space X Ã? Y in the following way. As a set we have

  4. Markovian evolution of strongly coupled harmonic oscillators

    E-Print Network [OSTI]

    Chaitanya Joshi; Patrik Ohberg; James D. Cresser; Erika Andersson

    2014-12-16T23:59:59.000Z

    We investigate how to model Markovian evolution of coupled harmonic oscillators, each of them interacting with a local environment. When the coupling between the oscillators is weak, dissipation may be modeled using local Lindblad terms for each of the oscillators in the master equation, as is commonly done. When the coupling between oscillators is strong, this model may become invalid. We derive a master equation for two coupled harmonic oscillators which are subject to individual heat baths modeled by a collection of harmonic oscillators, and show that this master equation in general contains non-local Lindblad terms. We compare the resulting time evolution with that obtained for dissipation through local Lindblad terms for each individual oscillator, and show that the evolution is different in the two cases. In particular, the two descriptions give different predictions for the steady state and for the entanglement between strongly coupled oscillators. This shows that when describing strongly coupled harmonic oscillators, one must take great care in how dissipation is modeled, and that a description using local Lindblad terms may fail. This may be particularly relevant when attempting to generate entangled states of strongly coupled quantum systems.

  5. Low-income energy policy in a restructuring electricity industry: an assessment of federal options

    SciTech Connect (OSTI)

    Baxter, L.W.

    1997-07-01T23:59:59.000Z

    This report identifies both the low-income energy services historically provided in the electricity industry and those services that may be affected by industry restructuring. It identifies policies that are being proposed or could be developed to address low- income electricity services in a restructured industry. It discusses potential federal policy options and identifies key policy and implementation issues that arise when considering these potential federal initiatives. To understand recent policy development at the state level, we reviewed restructuring proposals from eight states and the accompanying testimony and comments filed in restructuring proceedings in these states.

  6. Impact of 2003 Building Technology, State and Community Programs on United States Employment and Earned Income

    SciTech Connect (OSTI)

    Scott, Michael J.; Hostick, Donna J.; Elliott, Douglas B.

    2002-07-08T23:59:59.000Z

    As part of measuring the impact of government programs for improving the energy efficiency of the nation's building stock, this report uses the ImBuild II model to assess the future economic impacts of Department of Energy Office of Building Technology, State and Community Programs (BTS) FY 2003 portfolio of programs, specifically the potential impact on national employment and income. The energy savings expected to be created by market penetration of the BTS programs have the potential of creating nearly 270,000 jobs and about $3.41 billion in wage income(1999$) by the year 2030.

  7. Some Comments on the Strong Simplex Conjecture

    E-Print Network [OSTI]

    Lazich, Dejan E; Bossert, Martin

    2012-01-01T23:59:59.000Z

    In the disproof of the Strong Simplex Conjecture presented in [Steiner, 1994], a counterexample signal set was found that has higher average probability of correct optimal decoding than the corresponding regular simplex signal set, when compared at small values of the signal-to-noise ratio. The latter was defined as the quotient of average signal energy and average noise power. In this paper, it is shown that this interpretation of the signal-to-noise ratio is inappropriate for a comparison of signal sets, since it leads to a contradiction with the Channel Coding Theorem. A modified counterexample signal set is proposed and examined using the classical interpretation of the signal-to-noise ratio, i.e., as the quotient of average signal energy and average noise energy. This signal set outperforms the regular simplex signal set for small signal-to-noise ratios without contradicting the Channel Coding Theorem, hence the Strong Simplex Conjecture remains proven false.

  8. Quantum Strongly Secure Ramp Secret Sharing

    E-Print Network [OSTI]

    Paul Zhang; Ryutaroh Matsumoto

    2014-08-08T23:59:59.000Z

    Quantum secret sharing is a scheme for encoding a quantum state (the secret) into multiple shares and distributing them among several participants. If a sufficient number of shares are put together, then the secret can be fully reconstructed. If an insufficient number of shares are put together however, no information about the secret can be revealed. In quantum ramp secret sharing, partial information about the secret is allowed to leak to a set of participants, called an unqualified set, that cannot fully reconstruct the secret. By allowing this, the size of a share can be drastically reduced. This paper introduces a quantum analog of classical strong security in ramp secret sharing schemes. While the ramp secret sharing scheme still leaks partial information about the secret to unqualified sets of participants, the strong security condition ensures that qudits with critical information can no longer be leaked.

  9. Quantum corrections to screening at strong coupling

    E-Print Network [OSTI]

    Ajay Singh; Aninda Sinha

    2012-04-23T23:59:59.000Z

    We compute a certain class of corrections to (specific) screening lengths in strongly coupled nonabelian plasmas using the AdS/CFT correspondence. In this holographic framework, these corrections arise from various higher curvature interactions modifying the leading Einstein gravity action. The changes in the screening lengths are perturbative in inverse powers of the 't Hooft coupling or of the number of colours, as can be made precise in the context where the dual gauge theory is superconformal. We also compare the results of these holographic calculations to lattice results for the analogous screening lengths in QCD. In particular, we apply these results within the program of making quantitative comparisons between the strongly coupled quark-gluon plasma and holographic descriptions of conformal field theory.

  10. Concepts in strong Langmuir turbulence theory

    SciTech Connect (OSTI)

    DuBois, D.F.; Rose, H.A.

    1990-01-01T23:59:59.000Z

    Some of the basic concepts of strong Langmuir turbulence (SLT) theory are reviewed. In SLT system, a major fraction of the turbulent energy is carried by local, time-dependent, nonlinear excitations called cavitons. Modulational instability, localization of Langmuir fields by density fluctuations, caviton nucleation, collapse, and burnout and caviton correlations are reviewed. Recent experimental evidence will be presented for SLT phenomena in the interaction of powerful HF waves with the ionosphere and in laser-plasma interaction experiments. 38 refs., 11 figs.

  11. Jet physics and strong coupling at HERA

    E-Print Network [OSTI]

    Maxime Gouzevitch

    2009-06-05T23:59:59.000Z

    Jet production in electron-proton scattering at HERA provides an important testing ground for Quantum Chromodynamics (QCD). The inclusive jet and multi-jet cross sections recently measured by H1 and ZEUS collaborations allow a precise determination of the strong coupling and test of its running. Additionally, a measurement of the angular correlations in the 3-jet events gives a handle on the fundamental gauge structure of the QCD.

  12. Colour superconductivity in a strong magnetic field

    E-Print Network [OSTI]

    Efrain J. Ferrer; Vivian de la Incera; Cristina Manuel

    2005-11-30T23:59:59.000Z

    We explore the effects of an applied strong external magnetic field in a three flavour massless colour superconductor. The long-range component of the B field that penetrates the superconductor enhances some quark condensates, leading to a different condensation pattern. The external field also reduces the flavour symmetries in the system, and thus it changes drastically the corresponding low energy physics. Our considerations are relevant for the study of highly magnetized compact stars.

  13. Cosmological test using strong gravitational lensing systems

    E-Print Network [OSTI]

    Yuan, C C

    2015-01-01T23:59:59.000Z

    As one of the probes of universe, strong gravitational lensing systems allow us to compare different cosmological models and constrain vital cosmological parameters. This purpose can be reached from the dynamic and geometry properties of strong gravitational lensing systems, for instance, time-delay $\\Delta\\tau$ of images, the velocity dispersion $\\sigma$ of the lensing galaxies and the combination of these two effects, $\\Delta\\tau/\\sigma^2$. In this paper, in order to carry out one-on-one comparisons between $\\Lambda$CDM universe and $R_h=ct$ universe, we use a sample containing 36 strong lensing systems with the measurement of velocity dispersion from the SLACS and LSD survey. Concerning the time-delay effect, 12 two-image lensing systems with $\\Delta\\tau$ are also used. In addition, Monte Carlo (MC) simulations are used to compare the efficiency of the three methods as mentioned above. From simulations, we estimate the number of lenses required to rule out one model at the $99.7\\%$ confidence level. Compar...

  14. Strongly Coupled Graphene on the Lattice

    E-Print Network [OSTI]

    Timo A. Lähde; Joaquín E. Drut

    2011-11-03T23:59:59.000Z

    The two-dimensional carbon allotrope graphene has recently attracted a lot of attention from researchers in the disciplines of Lattice Field Theory, Lattice QCD and Monte Carlo calculations. This interest has been prompted by several remarkable properties of the conduction electrons in graphene. For instance, the conical band structure of graphene at low energies is strongly reminiscent of relativistic Dirac fermions. Also, due the low Fermi velocity of v_F = c/300, where c is the speed of light in vacuum, the physics of the conduction electrons in graphene is qualitatively similar to Quantum Electrodynamics in a strongly coupled regime. In turn, this opens up the prospect of the experimental realization of gapped, strongly correlated states in the electronic phase diagram of graphene. Here, we review the experimental and theoretical motivations for Lattice Field Theory studies of graphene, and describe the directions that such research is likely to progress in during the next few years. We also give a brief overview of the two main lattice theories of graphene, the hexagonal Hubbard theory and the low-energy Dirac theory. Finally, we describe the prospect of extracting response functions, such as the electric conductivity, using Lattice Field Theory calculations.

  15. WHAT HAS WELFARE REFORM ACCOMPLISHED? IMPACTS ON WELFARE PARTICIPATION, EMPLOYMENT, INCOME,

    E-Print Network [OSTI]

    Shyy, Wei

    WHAT HAS WELFARE REFORM ACCOMPLISHED? IMPACTS ON WELFARE PARTICIPATION, EMPLOYMENT, INCOME, POVERTY, and RAND for comments. #12;1 Abstract This paper evaluates the effectiveness of recent welfare reforms, investigating the effects of both state-specific waivers in the early 1990s and the 1996 federal reform

  16. Development of Energy-Efficient Housing for Low-Income Texas Residents

    E-Print Network [OSTI]

    Haberl, J. S.; Kootin-Sanwu, V.

    1999-01-01T23:59:59.000Z

    The purpose of this Center for Energy and Mineral Research (CEMR) funded study is to improve the energy use in low-income housing in the State of Texas. This study aims at achieving energy-efficiency by using a combination of measured data...

  17. Global Small Solutions of the Vlasov-Maxwell System in the Absence of Incoming Radiation

    E-Print Network [OSTI]

    Simone Calogero

    2004-11-16T23:59:59.000Z

    We consider a modified version of the Vlasov-Maxwell system in which the usual Maxwell fields are replaced by their retarded parts. We show that solutions of this modified system exist globally for a small number of particles and that they describe a system without incoming radiation

  18. Business Model Innovation for Sanitation and Water Services in Low-income Countries

    E-Print Network [OSTI]

    Wehrli, Bernhard

    Business Model Innovation for Sanitation and Water Services in Low-income Countries PEAK Advanced- trepreneurs as well as private firms agree that the business model determines whether scaling up of water and sanitation services is successful or not. Business models can unlock the value potential of water

  19. On strong fault tolerance (or strong Menger-connectivity) of multicomputer networks 

    E-Print Network [OSTI]

    Oh, Eunseuk

    2004-11-15T23:59:59.000Z

    As the size of networks increases continuously, dealing with networks with faulty nodes becomes unavoidable. In this dissertation, we introduce a new measure for network fault tolerance, the strong fault tolerance (or ...

  20. The strong decays of K1 resonances

    E-Print Network [OSTI]

    Andrey Tayduganov; Emi Kou; Alain Le Yaouanc

    2011-11-27T23:59:59.000Z

    We investigate the K1--> K pi pi strong interaction decays. Using the 3P0 quark-pair-creation model to derive the basic parametrization, we discuss in detail how to obtain the various partial wave amplitudes into the possible quasi-two-body decay channels as well as their relative phases from the currently available experimental data. We obtain the K1 mixing angle to be thetaK1= 60 deg, in agreement with previous works. Our study can be applied to extract the information needed for the photon polarization determination of the radiative B--> K1 gamma decay.

  1. Gravitational leptogenesis, C, CP and strong equivalence

    E-Print Network [OSTI]

    J. I. McDonald; Graham M. Shore

    2014-11-13T23:59:59.000Z

    The origin of matter-antimatter asymmetry is one of the most important outstanding problems at the interface of particle physics and cosmology. Gravitational leptogenesis (baryogenesis) provides a possible mechanism through explicit couplings of spacetime curvature to appropriate lepton (or baryon) currents. In this paper, the idea that these strong equivalence principle violating interactions could be generated automatically through quantum loop effects in curved spacetime is explored, focusing on the realisation of the discrete symmetries C, CP and CPT which must be broken to induce matter-antimatter asymmetry. The related issue of quantum corrections to the dispersion relation for neutrino propagation in curved spacetime is considered within a fully covariant framework.

  2. Thermalization of Strongly Coupled Field Theories

    SciTech Connect (OSTI)

    Balasubramanian, V. [David Rittenhouse Laboratory, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States); Bernamonti, A.; Copland, N.; Craps, B.; Staessens, W. [Theoretische Natuurkunde, Vrije Universiteit Brussel, and International Solvay Institutes, B-1050 Brussels (Belgium); Boer, J. de [Institute for Theoretical Physics, University of Amsterdam, 1090 GL Amsterdam (Netherlands); Keski-Vakkuri, E. [Helsinki Institute of Physics and Department of Physics, FIN-00014 University of Helsinki (Finland); Mueller, B. [Department of Physics and CTMS, Duke University, Durham, North Carolina 27708 (United States); Schaefer, A. [Institut fuer Theoretische Physik, Universitaet Regensburg, D-93040 Regensburg (Germany); Shigemori, M. [Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan)

    2011-05-13T23:59:59.000Z

    Using the holographic mapping to a gravity dual, we calculate 2-point functions, Wilson loops, and entanglement entropy in strongly coupled field theories in d=2, 3, and 4 to probe the scale dependence of thermalization following a sudden injection of energy. For homogeneous initial conditions, the entanglement entropy thermalizes slowest and sets a time scale for equilibration that saturates a causality bound. The growth rate of entanglement entropy density is nearly volume-independent for small volumes but slows for larger volumes. In this setting, the UV thermalizes first.

  3. Chiral transition in a strong magnetic background

    E-Print Network [OSTI]

    Eduardo S. Fraga; Ana Júlia Mizher

    2008-04-09T23:59:59.000Z

    The presence of a strong magnetic background can modify the nature and the dynamics of the chiral phase transition at finite temperature. We compute the modified effective potential in the linear sigma model with quarks to one loop in the $\\bar{MS}$ scheme for $N_{f}=2$. For fields $eB\\sim 5 m_{\\pi}^{2}$ and larger a crossover is turned into a weak first-order transition. We discuss possible implications for non-central heavy ion collisions at RHIC and LHC, and for the primordial QCD transition.

  4. Hyperon bulk viscosity in strong magnetic fields

    E-Print Network [OSTI]

    Monika Sinha; Debades Bandyopadhyay

    2009-06-06T23:59:59.000Z

    We study the bulk viscosity of neutron star matter including $\\Lambda$ hyperons in the presence of quantizing magnetic fields. Relaxation time and bulk viscosity due to both the non-leptonic weak process involving $\\Lambda$ hyperons and direct Urca processes are calculated here. In the presence of a strong magnetic field of $10^{17}$ G, the hyperon bulk viscosity coefficient is reduced whereas bulk viscosity coefficients due to direct Urca processes are enhanced compared with their field free cases when many Landau levels are populated by protons, electrons and muons.

  5. Coming On Strong | 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 DataDepartment of Energy Your Density Isn't Your Destiny: Theof"Wave the White Flag"DepartmentToward Targets ofDOEComing On Strong

  6. Kick asymmetry along a strong magnetic field in the process of neutrino scattering on nucleons

    E-Print Network [OSTI]

    A. A. Gvozdev; I. S. Ognev

    1999-12-14T23:59:59.000Z

    The neutrino-nucleon scattering in a collapsing star envelope with a strong magnetic field is investigated. The transferred by neutrinos momentum asymmetry along the field direction is obtained. It is shown that the neutrino-nucleon scattering gives a contribution to the asymmetry comparable with direct URCA processes. Hence, the neutrino-nucleon scattering should be taken into account in estimations of a possible influence of neutrino reemission processes on a collapsing star envelope dynamics.

  7. Sandia Energy - Control of Strong Light-Matter Coupling Using...

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

    Control of Strong Light-Matter Coupling Using the Capacitance of Metamaterial Nanocavities Home Highlights - Energy Research Control of Strong Light-Matter Coupling Using the...

  8. Vermont Wind Measurement Company Still Strong | Department of...

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

    Vermont Wind Measurement Company Still Strong Vermont Wind Measurement Company Still Strong April 9, 2010 - 3:16pm Addthis NRG's new building utilizes solar power, but their...

  9. Caviton dynamics in strong Langmuir turbulence

    SciTech Connect (OSTI)

    DuBois, D.; Rose, H.A.; Russell, D.

    1989-01-01T23:59:59.000Z

    Recent studies based on long time computer simulations of Langmuir turbulence as described by Zakharov's model will be reviewed. These show that for strong to moderate ion sound samping the turbulent energy is dominantly in nonlinear ''caviton'' excitations which are localized in space and time. A local caviton model will be presented which accounts for the nucleation-collapse-burnout cycles of individual cavitons as well as their space-time correlations. This model is in detailed agreement with many features of the electron density fluctuation spectra in the ionosphere modified by powerful hf waves as measured by incoherent scatter radar. Recently such observations have verified a prediction of the theory that ''free'' Langmuir waves are emitted in the caviton collapse process. These observations and theoretical considerations also strongly imply that cavitons in the heated ionosphere, under certain conditions, evolve to states in which they are ordered in space and time. The sensitivity of the high frequency Langmuir field dynamics to the low frequency ion density fluctuations and the related caviton nucleation process will be discussed. 40 refs., 19 figs.

  10. Axions and the strong CP problem

    SciTech Connect (OSTI)

    Kim, Jihn E.; Carosi, Gianpaolo [Department of Physics and Astronomy and Center for Theoretical Physics, Seoul National University, Seoul 151-747 (Korea, Republic of); Physical Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

    2010-01-15T23:59:59.000Z

    Current upper bounds on the neutron electric dipole moment constrain the physically observable quantum chromodynamic (QCD) vacuum angle |{theta}|(less-or-similar sign)10{sup -11}. Since QCD explains a great deal of experimental data from the 100 MeV to the TeV scale, it is desirable to explain this smallness of |{theta}| in the QCD framework; this is the strong CP problem. There now exist two plausible solutions to this problem, one of which leads to the existence of a very light axion. The axion decay constant window, 10{sup 9}(less-or-similar sign)F{sub a}(less-or-similar sign)10{sup 12} GeV for an O(1) initial misalignment angle {theta}{sub 1}, has been obtained from astrophysical and cosmological data. For F{sub a}(greater-or-similar sign)10{sup 12} GeV with {theta}{sub 1}strong CP problem introduces its superpartner the axino, which might have affected the evolution of the Universe significantly. The very light axion (theory, supersymmetrization, and models) using recent particle, astrophysical, and cosmological data, and present prospects for its discovery is reviewed here.

  11. Scaling of chaos in strongly nonlinear lattices

    SciTech Connect (OSTI)

    Mulansky, Mario, E-mail: mulansky@pks.mpg.de [Department of Physics and Astronomy, Potsdam University, Karl-Liebknecht-Str. 24, D-14476 Potsdam-Golm (Germany) [Department of Physics and Astronomy, Potsdam University, Karl-Liebknecht-Str. 24, D-14476 Potsdam-Golm (Germany); Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, D-01187 Dresden (Germany); Institut für Theoretische Physik, TU Dresden, Zellescher Weg 17, D-01069 Dresden (Germany)

    2014-06-15T23:59:59.000Z

    Although it is now understood that chaos in complex classical systems is the foundation of thermodynamic behavior, the detailed relations between the microscopic properties of the chaotic dynamics and the macroscopic thermodynamic observations still remain mostly in the dark. In this work, we numerically analyze the probability of chaos in strongly nonlinear Hamiltonian systems and find different scaling properties depending on the nonlinear structure of the model. We argue that these different scaling laws of chaos have definite consequences for the macroscopic diffusive behavior, as chaos is the microscopic mechanism of diffusion. This is compared with previous results on chaotic diffusion [M. Mulansky and A. Pikovsky, New J. Phys. 15, 053015 (2013)], and a relation between microscopic chaos and macroscopic diffusion is established.

  12. Surface plasmon polariton induced strong coherent superposition

    E-Print Network [OSTI]

    Sintayehu Tesfa; Ali A. Kamli

    2013-03-30T23:59:59.000Z

    A strong coherent superposition is shown to be induced between the energy states of a two-level emitter immersed in a surface plasmon polariton evanescently confined to a small metallic ring. It turns out that there is nearly equal chance for the two-level emitter to be found either in the upper or lower energy level at steady state even for a weaker surface plasmon driving strength. This indicates that it is possible to create a qubit that is robust against emitter spontaneous damping rate, which can be applicable in designing a device that can perform certain quantum information processing tasks. In support of this proposal, the photon statistics of the emitted radiation is found to exhibit significant nonclassical features.

  13. Particle acceleration in superluminal strong waves

    E-Print Network [OSTI]

    Teraki, Yuto; Nagataki, Shigehiro

    2015-01-01T23:59:59.000Z

    We calculate the electron acceleration in random superluminal strong waves (SLSWs) and radiation from them by using numerical methods in the context of the termination shock of the pulsar wind nebulae. We pursue the electrons by solving the equation of motion in the analytically expressed electromagnetic turbulences. These consist of primary SLSW and isotropically distributed secondary electromagnetic waves. Under the dominance of the secondary waves, all electrons gain nearly equal energy. On the other hand, when the primary wave is dominant, selective acceleration occurs. The phase of the primary wave felt by the electrons moving nearly along the wavevector changes very slowly compared to the oscillation of the wave, which is called "phase locked", and such electrons are continuously accelerated. This acceleration by SLSWs may play a crucial role in the pre-acceleration for the shock acceleration. In general, the radiation from the phase-locked population is different from the synchro-Compton radiation. How...

  14. Nonlinear parallel momentum transport in strong turbulence

    E-Print Network [OSTI]

    Wang, Lu; Diamond, P H

    2015-01-01T23:59:59.000Z

    Most existing theoretical studies of momentum transport focus on calculating the Reynolds stress based on quasilinear theory, without considering the \\emph{nonlinear} momentum flux-$$. However, a recent experiment on TORPEX found that the nonlinear toroidal momentum flux induced by blobs makes a significant contribution as compared to the Reynolds stress [Labit et al., Phys. Plasmas {\\bf 18}, 032308 (2011)]. In this work, the nonlinear parallel momentum flux in strong turbulence is calculated by using three dimensional Hasegawa-Mima equation. It is shown that nonlinear diffusivity is smaller than quasilinear diffusivity from Reynolds stress. However, the leading order nonlinear residual stress can be comparable to the quasilinear residual stress, and so could be important to intrinsic rotation in tokamak edge plasmas. A key difference from the quasilinear residual stress is that parallel fluctuation spectrum asymmetry is not required for nonlinear residual stress.

  15. Utilizing Nanofabrication to Construct Strong, Luminescent Materials

    SciTech Connect (OSTI)

    Chen, Wei; Huang, Gang; Lu, Hong B.; McCready, David E.; Joly, Alan G.; Bovin, Jan-Olov

    2006-05-28T23:59:59.000Z

    Luminescent materials have been utilized widely in applications from lighting to sensing. The new development of technologies based on luminescence properties requires the materials to have high luminescence efficiency and mechanical strength. In this article, we report the fabrication of luminescent materials possessing high mechanical strength by nanofabrication with polyvinyl alcohol used as a stabilizer or coupling agent. X-ray diffraction and high resolution transmission microscope observations reveal that the nanocomposite sample contains ZnS and ZnO nanoparticles as well as kozoite and sodium nitrate. The mechanical strength and hardness of these nanocomposite materials are higher than polycarbonate and some carbon nanotube reinforced nanocomposites. Strong luminescence is observed in the new nanocomposites and the luminescence intensity does not degrade following up to 30 minutes of X-ray irradiation. Our results indicate that nanofabrication may provide a good method to improve the mechanical strength of luminescent materials for some applications in which high strength luminescent materials are needed.

  16. The impact of forecasted energy price increases on low-income consumers

    SciTech Connect (OSTI)

    Eisenberg, Joel F. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2005-10-31T23:59:59.000Z

    The Department of Energy’s Energy Information Administration (EIA) recently released its short term forecast for residential energy prices for the winter of 2005-2006. The forecast indicates significant increases in fuel costs, particularly for natural gas, propane, and home heating oil, for the year ahead. In the following analysis, the Oak Ridge National Laboratory has integrated the EIA price projections with the Residential Energy Consumption Survey (RECS) for 2001 in order to project the impact of these price increases on the nation’s low-income households by primary heating fuel type, nationally and by Census Region. The statistics are intended for the use of policymakers in the Department of Energy’s Weatherization Assistance Program and elsewhere who are trying to gauge the nature and severity of the problems that will be faced by eligible low-income households during the 2006 fiscal year.

  17. Influence of microwave driver coupling design on plasma density at Testbench for Ion sources Plasma Studies, a 2.45 GHz Electron Cyclotron Resonance Plasma Reactor

    SciTech Connect (OSTI)

    Megía-Macías, A.; Vizcaíno-de-Julián, A. [E.S.S. Bilbao, Edificio Cosimet, Landabarri 2, 48940-Leioa, Vizcaya (Spain)] [E.S.S. Bilbao, Edificio Cosimet, Landabarri 2, 48940-Leioa, Vizcaya (Spain); Cortázar, O. D., E-mail: dcortazar@essbilbao.org [E.S.S. Bilbao, Edificio Cosimet, Landabarri 2, 48940-Leioa, Vizcaya (Spain); Universidad de Castilla-La Mancha, ETSII, C.J. Cela s/n, 13170 Ciudad Real (Spain)

    2014-03-15T23:59:59.000Z

    A comparative study of two microwave driver systems (preliminary and optimized) for a 2.45 GHz hydrogen Electron Cyclotron Resonance plasma generator has been conducted. The influence on plasma behavior and parameters of stationary electric field distribution in vacuum, i.e., just before breakdown, along all the microwave excitation system is analyzed. 3D simulations of resonant stationary electric field distributions, 2D simulations of external magnetic field mapping, experimental measurements of incoming and reflected power, and electron temperature and density along the plasma chamber axis have been carried out. By using these tools, an optimized set of plasma chamber and microwave coupler has been designed paying special attention to the optimization of stationary electric field value in the center of the plasma chamber. This system shows a strong stability on plasma behavior allowing a wider range of operational parameters and even sustaining low density plasma formation without external magnetic field. In addition, the optimized system shows the capability to produce values of plasma density four times higher than the preliminary as a consequence of a deeper penetration of the magnetic resonance surface in relative high electric field zone by keeping plasma stability. The increment of the amount of resonance surface embedded in the plasma under high electric field is suggested as a key factor.

  18. Energy consumption and expenditure projections by income quintile on the basis of the Annual Energy Outlook 1997 forecast

    SciTech Connect (OSTI)

    Poyer, D.A.; Allison, T.

    1998-03-01T23:59:59.000Z

    This report presents an analysis of the relative impacts of the base-case scenario used in the Annual Energy Outlook 1997, published by the US Department of Energy, Energy Information Administration, on income quintile groups. Projected energy consumption and expenditures, and projected energy expenditures as a share of income, for the period 1993 to 2015 are reported. Projected consumption of electricity, natural gas, distillate fuel, and liquefied petroleum gas over this period is also reported for each income group. 33 figs., 11 tabs.

  19. Hope, Humor and Quality of Life in a Low Income Sample

    E-Print Network [OSTI]

    Ronan, Kathryn

    2009-04-23T23:59:59.000Z

    & Olinger, 1993; Vilaythong, Arnau, Rosen, & Mascaro, 2003). Further research providing evidence for tools such as, hope and humor, which may increase the quality of life among the low income population, is of paramount importance. The economic solution... obtained higher correlations with negative life events and mood disturbances. Martin and Lefcourt provide substantial evidence for the stress buffering role of humor. Kuiper, Martin, and Olinger (1993) enhanced the study investigating the effects...

  20. A comparison of dietary intakes and obstetric performances among low income adolescents and women

    E-Print Network [OSTI]

    Anding, Jenna DeBaun

    1991-01-01T23:59:59.000Z

    , defined as low income by their participation in federally-funded programs (such as Medicaid or WIC). Dietary intake was measured by use of a three-day food record. A questionnaire completed by all participants supplied socioeconomic and medical... was gathered from the participants' medical records. Infant birthweight, length of pregnancy, one- and five-minute Apgar scores, method of infant delivery and the presence of labor and delivery complications were compared between the two subject groups...

  1. The Political-Economic and Demographic Causes of Metropolitan Income Inequality and Its Components

    E-Print Network [OSTI]

    Chen, XI

    2010-07-14T23:59:59.000Z

    by standardizing pay among them within industrial units, e.g. plant, factory, or firm, but also equalize pay across units and reduce inequality by narrowing the earning gap between blue collar workers and highly paid professionals and executives. Furthermore... in various industrial and occupational categories. The most widely discussed demand-side factors 22 in studies on income inequality include industrial and occupational structure, size of the public sector, racial inequality caused by discrimination...

  2. The Low-Income Housing Program in the Louisiana and Mississippi Gulf Opportunity Zones

    E-Print Network [OSTI]

    Christman, Casey; Johnson, David; Rho, Eunju; Stein, Eric; Taylor, Beth

    2008-01-01T23:59:59.000Z

    1 Texas A&M University The Bush School of Government and Public Service The Low-Income Housing Program in the Louisiana and Mississippi Gulf Opportunity Zone For The Congressional Research Service Contract... ............................................. 40? Table 24: Variance in Estimates - LIHTC Projects in Louisiana .......................... 40? 6 Table 25: Variance in Estimates - LIHTC Units in Selected Parishes ................. 42? Table 26: Proposed Block Counting (e.g. District Level...

  3. Implications of Alternative Methods for Determining Agricultural Price and Income Supports.

    E-Print Network [OSTI]

    Wesley, E.; Peterson, F.

    1986-01-01T23:59:59.000Z

    ...................................... 10 Conclusion ........................................ 12 Implications of Alternative Methods for Determining Agricultural Price and Income Supports INTRODUCTION In modern economies, prices are determined through market forces , administrative... implication of these notions is that prices should be determined by the market. However, market prices can be considered optimal on ly if certain conditions are met. The existence of monopolies, externalities and public goods, for example, results in a...

  4. aggregatibacter actinomycetemcomitansarcb influences: Topics...

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

    was compared with that of control Paris-Sud XI, Universit de 393 INFLUENCE OF CARBON AEROGEL TEXTURE ON PEMFC PERFORMANCES Computer Technologies and Information Sciences...

  5. Delineating parton distributions and the strong coupling

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

    Jimenez-Delgado, Pedro [JLAB; Reya, Edwald [Technische Universitat Dortmund

    2014-04-01T23:59:59.000Z

    Global fits for precision determinations of parton distributions, together with the highly correlated strong coupling ?s, are presented up to next-to-next-to- leading order (NNLO) of QCD utilizing most world data (charm and jet production data are used where theoretically possible), except Tevatron gauge boson production data and LHC data which are left for genuine predictions. This is done within the 'dynamical' (valencelike input at Q02 = 0.8 GeV2 ) and 'standard' (input at Q02 = 2 GeV2) approach. The stability and reliability of the results are ensured by including nonperturbative higher-twist terms, nuclear corrections as well as target mass corrections, and by applying various (Q2, W2) cuts on available data. In addition, the Q02 dependence of the results is studied in detail. Predictions are given, in particular for LHC, on gauge and Higgs boson as well as for top-quark pair production. At NNLO the dynamical approach results in ?s(MZ2) = 0.1136 ± 0.0004, whereas the somewhat less constrained standard fit gives ?s(MZ2) = 0.1162 ± 0.0006.

  6. Strong liquid-crystalline polymeric compositions

    DOE Patents [OSTI]

    Dowell, F.

    1993-12-07T23:59:59.000Z

    Strong liquid-crystalline polymeric (LCP) compositions of matter are described. LCP backbones are combined with liquid crystalline (LC) side chains in a manner which maximizes molecular ordering through interdigitation of the side chains, thereby yielding materials which are predicted to have superior mechanical properties over existing LCPs. The theoretical design of LCPs having such characteristics includes consideration of the spacing distance between side chains along the backbone, the need for rigid sections in the backbone and in the side chains, the degree of polymerization, the length of the side chains, the regularity of the spacing of the side chains along the backbone, the interdigitation of side chains in sub-molecular strips, the packing of the side chains on one or two sides of the backbone to which they are attached, the symmetry of the side chains, the points of attachment of the side chains to the backbone, the flexibility and size of the chemical group connecting each side chain to the backbone, the effect of semiflexible sections in the backbone and the side chains, and the choice of types of dipolar and/or hydrogen bonding forces in the backbones and the side chains for easy alignment. 27 figures.

  7. Delineating parton distributions and the strong coupling

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

    Jimenez-Delgado, Pedro; Reya, Edwald

    2014-04-01T23:59:59.000Z

    Global fits for precision determinations of parton distributions, together with the highly correlated strong coupling ?s, are presented up to next-to-next-to- leading order (NNLO) of QCD utilizing most world data (charm and jet production data are used where theoretically possible), except Tevatron gauge boson production data and LHC data which are left for genuine predictions. This is done within the 'dynamical' (valencelike input at Q02 = 0.8 GeV2 ) and 'standard' (input at Q02 = 2 GeV2) approach. The stability and reliability of the results are ensured by including nonperturbative higher-twist terms, nuclear corrections as well as target mass corrections,more »and by applying various (Q2, W2) cuts on available data. In addition, the Q02 dependence of the results is studied in detail. Predictions are given, in particular for LHC, on gauge and Higgs boson as well as for top-quark pair production. At NNLO the dynamical approach results in ?s(MZ2) = 0.1136 ± 0.0004, whereas the somewhat less constrained standard fit gives ?s(MZ2) = 0.1162 ± 0.0006.« less

  8. Delineating parton distributions and the strong coupling

    E-Print Network [OSTI]

    Pedro Jimenez-Delgado; Ewald Reya

    2014-05-22T23:59:59.000Z

    Global fits for precision determinations of parton distributions, together with the highly correlated strong coupling $\\alpha_s$, are presented up to next-to-next-to-leading order (NNLO) of QCD utilizing most world data (charm and jet production data are used where theoretically possible), except TeVatron gauge boson production data and LHC data which are left for genuine predictions. This is done within the `dynamical' (valencelike input at $Q_0^2=0.8$ GeV$^2$) and `standard' (input at $Q_0^2=2$ GeV$^2$) approach. The stability and reliability of the results are ensured by including nonperturbative higher-twist terms, nuclear corrections as well as target mass corrections, and by applying various ($Q^2,W^2$) cuts on available data. In addition, the $Q_0^2$ dependence of the results is studied in detail. Predictions are given, in particular for LHC, on gauge and Higgs boson as well as for top-quark pair production. At NNLO the dynamical approach results in $\\alpha_s(M_Z^2)=0.1136\\pm0.0004$, whereas the somewhat less constrained standard fit gives $\\alpha_s(M_Z^2)=0.1162\\pm0.0006$.

  9. Do the rich speak louder? : examining whether U.S. Senators differentially respond to their constituents by income across issues

    E-Print Network [OSTI]

    Heaps, Elisha W. (Elisha Windi)

    2014-01-01T23:59:59.000Z

    This thesis examines the relationship between public opinion and the way senators vote on specific issues, and how this "responsiveness" might vary across income groups. The independent variable of interest, state-level ...

  10. Youth and cities : planning with low-income youth and urban youth cultures in New York City and Paris

    E-Print Network [OSTI]

    Knorr, Lilian (Lilian M.)

    2014-01-01T23:59:59.000Z

    Are the cities of North America and Europe governed, built, and planned by authorities to encourage youth development or facilitate repression? Youth and Cities: Planning with Low- Income Youth and Urban Youth Cultures in ...

  11. A rationalized building system for low-income housing as a response to the issues of flexibility and participation

    E-Print Network [OSTI]

    Spinazzola, Aida

    1988-01-01T23:59:59.000Z

    This thesis will focus on the design of a building system intending to approach the problem of low-income housing provision in developing countries.Two concepts will be proposed as a base for the development of the building ...

  12. Educational status orientations of Mexican American and Anglo American youth in selected low-income counties of Texas

    E-Print Network [OSTI]

    Juarez, Rumaldo Zapata

    1968-01-01T23:59:59.000Z

    EDUCATIONAL STATUS ORIENTATIONS OF MEXICAN AMERICAN AND ANGLO AMERICAN YOUTH IN SELECTED LOW-INCOME COUNTIES OF TEXAS A Thesis by RUMALDO Z, JUAREZ Submitted to the Graduate College of the Texas AAM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August 1968 Maj or Sub) ect: Sociology EDUCATIONAL STATUS ORIENTATIONS OF MEXICAN AMERICAN AND ANGLO AMERICAN YOUTH IN SELECTED LON-INCOME COUNTIES OF TEXAS A Thesis by RUMALDO Z. JUAREZ Approved...

  13. Prevalence of exposure to violence and PTSD symptoms in middle income undergraduate students representing three ethnic groups

    E-Print Network [OSTI]

    McGruder, Anita Kay

    1995-01-01T23:59:59.000Z

    PREVALENCE OF EXPOSURE TO VIOLENCE AND PTSD SYMPTOMS IN MIDDLE INCOME UNDERGRADUATE STUDENTS REPRESENTING THREE ETHNIC GROUPS A Thesis by ANITA KAY MCGRUDER 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 May 1995 Major Subject: Psychology PREVALENCE OF EXPOSURE TO VIOLENCE AND PTSD SYMPTOMS IN MIDDLE INCOME UNDERGRADUATE STUDENTS REPRESENTING THREE ETHNIC GROUPS A Thesis by ANITA KAY...

  14. On strongly GA-convex functions and stochastic processes

    SciTech Connect (OSTI)

    Bekar, Nurgül Okur [Department of Statistics, Giresun University, Giresun (Turkey); Akdemir, Hande Günay; ??can, ?mdat [Department of Mathematics, Giresun University, Giresun (Turkey)

    2014-08-20T23:59:59.000Z

    In this study, we introduce strongly GA-convex functions and stochastic processes. We provide related well-known Kuhn type results and Hermite-Hadamard type inequality for strongly GA-convex functions and stochastic processes.

  15. asymmetric strongly damped: Topics by E-print Network

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

    in a Strong Magnetic Field HEP - Theory (arXiv) Summary: Damping of an electromagnetic wave in a strong magnetic field is analyzed in the kinematic region near the threshold of...

  16. Solar Farm Going Strong at Water Treatment Plant in Pennsylvania...

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

    Solar Farm Going Strong at Water Treatment Plant in Pennsylvania Solar Farm Going Strong at Water Treatment Plant in Pennsylvania October 8, 2010 - 10:39am Addthis Aqua...

  17. Gauge/gravity duality and jets in strongly coupled plasma

    E-Print Network [OSTI]

    Paul M. Chesler

    2009-10-08T23:59:59.000Z

    We discuss jets in strongly coupled N = 4 supersymmetric Yang-Mills plasma and their dual gravitational description.

  18. Tropical Pacific Influence on the Source and Transport of Marine Aerosols to West Antarctica

    E-Print Network [OSTI]

    Criscitiello, Alison S.

    The climate of West Antarctica is strongly influenced by remote forcing from the tropical Pacific. For example, recent surface warming over West Antarctica reflects atmospheric circulation changes over the Amundsen Sea, ...

  19. Influence of Mississippian Karst Topography on Deposition of the Cherokee Group: Ness County, Kansas

    E-Print Network [OSTI]

    Ramaker, Benjamin J.

    2009-06-12T23:59:59.000Z

    are confined to lowstand and transgressive systems tracts. Sand development is strongly influenced by Mississippian paleotopography. Thick sandstone successions were deposited in groundwater-sapped Mississippian valleys and along the paleoshoreline. Two...

  20. Strongly Secure Ramp Secret Sharing Schemes for General Access Structures

    E-Print Network [OSTI]

    Yamamoto, Hirosuke

    Strongly Secure Ramp Secret Sharing Schemes for General Access Structures Mitsugu Iwamoto 1 , Hirosuke Yamamoto 2 Abstract Ramp secret sharing (SS) schemes can be classified into strong ramp SS schemes and weak ramp SS schemes. The strong ramp SS schemes do not leak out any part of a secret explicitly even

  1. Farm records: a study of their relationship to farm management and federal income taxation.

    E-Print Network [OSTI]

    Warren, Steve Pearce

    1949-01-01T23:59:59.000Z

    charges incurred in acquirin' the 6o . ds vill m ice up the inventory value. In ce. . e of products produced on the f- rm th~ co. t b. si. will include co. t of raw m=. teri-l;, dir~ct labor =nd indirect expenses. l For ex mple, the co. t of . e..., to ~irect 1-)or for the entire farm ~nd pplying thi. ratio to the di- rect 1;, tor cost for the 10 acre plot, Indirect expense. m. , y be lioc. :t~d by any m thod which will conform to -cce. ted accountin~ pr ctice an& cle rly reflect. income, ' 1 Feder...

  2. Dynamics of compressional Mach cones in a strongly coupled complex plasma

    SciTech Connect (OSTI)

    Bandyopadhyay, P., E-mail: pintu@ipr.res.in; Dey, R.; Sen, Abhijit [Institute for Plasma Research, Bhat, Gandhinagar-382428 (India); Kadyan, Sangeeta [Department of Physics, Maharshi Dayanand University, Rohtak 124001 (India)

    2014-10-15T23:59:59.000Z

    Using a Generalised-Hydrodynamic (GH) fluid model, we study the influence of strong coupling induced modification of the fluid compressibility on the dynamics of compressional Mach cones in a dusty plasma medium. A significant structural change of lateral wakes for a given Mach number and Epstein drag force is found in the strongly coupled regime. With the increase of fluid compressibility, the peak amplitude of the normalised perturbed dust density first increases and then decreases monotonically after reaching its maximum value. It is also noticed that the opening angle of the cone structure decreases with the increase of the compressibility of the medium and the arm of the Mach cone breaks up into small structures in the velocity vector profile when the coupling between the dust particles increases.

  3. Tunable frequency band-gap and pulse propagation in a strongly nonlinear diatomic chain

    E-Print Network [OSTI]

    E. B. Herbold; J. Kim; V. F. Nesterenko; S. Wang; C. Daraio

    2008-06-26T23:59:59.000Z

    One-dimensional nonlinear phononic crystals have been assembled from periodic diatomic chains of stainless steel cylinders alternated with Polytetrafluoroethylene (PTFE) spheres. We report the presence of acoustic band gaps in the dispersion relation of the linearized systems and study the transformation of single and multiple pulses in linear, nonlinear and strongly nonlinear regimes with numerical calculations and experiments. The limiting frequencies of the band gap are within the audible frequency range (20-20,000 Hz) and can be tuned by varying the particle's material properties, mass and initial compression. Pulses rapidly transform within very short distances from the impacted end due to the influence of the band gap in the linear and in nonlinear elastic chains. The effects of an in situ band gap created by a mean dynamic compression are observed in the strongly nonlinear wave regime.

  4. Head-on-collision of modulated dust acoustic waves in strongly coupled dusty plasma

    SciTech Connect (OSTI)

    El-Labany, S. K.; El-Depsy, A.; Zedan, N. A. [Department of Physics, Faculty of Science, Damietta University, P.O. 34517, New Damietta (Egypt); El-Taibany, W. F. [Department of Physics, Faculty of Science, Damietta University, P.O. 34517, New Damietta (Egypt); Department of Physics, College of Science for Girls in Abha, King Khalid University, P.O. 960, Abha (Saudi Arabia); El-Shamy, E. F. [Department of Physics, Faculty of Science, Damietta University, P.O. 34517, New Damietta (Egypt); Department of Physics, College of Science, King Khalid University, P.O. 9004, Abha (Saudi Arabia)

    2012-10-15T23:59:59.000Z

    The derivative expansion perturbation method is applied to a strongly coupled dusty plasma system consisting of negatively charged dust grains, electrons, and ions. The basic equations are reduced to a nonlinear Schroedinger type equation appropriate for describing the modulated dust acoustic (DA) waves. We have examined the modulation (in) stability and the dependence of the system physical parameters (angular frequency and group velocity) on the polarization force variation. Finally, the extended Poincare-Lighthill-Kuo technique is employed to investigate the head-on collision (HoC) between two DA dark solitons. The analytical phase shifts and the trajectories of these dark solitons after the collision are derived. The numerical illustrations show that the polarization effect has strong influence on the nature of the phase shifts and the trajectories of the two DA dark solitons after collision.

  5. Strong-field approximation for ionization of a diatomic molecule by a strong laser field

    SciTech Connect (OSTI)

    Milosevic, D. B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo, Bosnia and Herzegovina and Max-Born-Institut, Max-Born-Strasse 2a, 12489 Berlin (Germany)

    2006-12-15T23:59:59.000Z

    We present a theory of ionization of diatomic molecules by a strong laser field. A diatomic molecule is considered as a three-particle system, which consists of two heavy atomic (ionic) centers and an electron. After the separation of the center-of-mass coordinate, the dynamics of this system is reduced to the relative electronic and nuclear coordinates. The exact S-matrix element for ionization is presented in a form in which the laser-molecule interaction is emphasized. This form is useful for application of the molecular strong-field approximation (SFA). We introduced two forms of the molecular SFA, one with the field-free and the other with the field-dressed initial molecular bound state. We relate these two forms of our modified molecular SFA to the standard molecular SFAs, introduced previously using the length gauge and the velocity gauge. Numerical examples of the ionization rates of N{sub 2} and O{sub 2} molecules are shown and compared for all four versions of the molecular SFA and we suggest that our modified molecular SFA should be used instead of the standard molecular SFA.

  6. Weak nuclear forces cause the strong nuclear force

    E-Print Network [OSTI]

    E. L. Koschmieder

    2007-12-11T23:59:59.000Z

    We determine the strength of the weak nuclear force which holds the lattices of the elementary particles together. We also determine the strength of the strong nuclear force which emanates from the sides of the nuclear lattices. The strong force is the sum of the unsaturated weak forces at the surface of the nuclear lattices. The strong force is then about ten to the power of 6 times stronger than the weak force between two lattice points.

  7. Suppression of Rayleigh Taylor instability in strongly coupled plasmas

    SciTech Connect (OSTI)

    Das, Amita; Kaw, Predhiman [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)

    2014-06-15T23:59:59.000Z

    The Rayleigh Taylor instability in a strongly coupled plasma medium has been investigated using the equations of generalized hydrodynamics. It is demonstrated that the visco-elasticity of the strongly coupled medium due to strong inter particle correlations leads to a suppression of the Rayleigh Taylor instability unless certain threshold conditions are met. The relevance of these results to experiments on laser compression of matter to high densities including those related to inertial confinement fusion using lasers has also been shown.

  8. Light steering in a strongly nonlocal nonlinear medium

    SciTech Connect (OSTI)

    Ouyang Shigen; Hu Wei; Guo Qi [Laboratory of Photonic Information Technology, South China Normal University, Guangzhou, 510631 (China)

    2007-11-15T23:59:59.000Z

    With a strongly nonlocal model, we present an analytical solution of the coherent interaction of two Gaussian beams with an arbitrary phase difference and arbitrary incident angles. Numerical simulations show that the analytical solution can describe the interaction of two Gaussian beams very well in the strongly nonlocal case. It is theoretically shown that one can steer lights in strongly nonlocal media by tuning the incident conditions of coherently interacting beams like the phase difference between beams and their relative amplitude.

  9. Equivalence and Strong Equivalence between Sparsest and Least ...

    E-Print Network [OSTI]

    2013-12-15T23:59:59.000Z

    Equivalence and Strong Equivalence between. Sparsest and Least l1-Norm Nonnegative Solutions of. Linear Systems and Their Application. YUN-BIN ZHAO ?.

  10. Crown Ethers in Graphene Bring Strong, Selective Binding | ornl...

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

    Materials Characterization Crown Ethers in Graphene Bring Strong, Selective Binding November 14, 2014 Schematic showing a graphene sheet containing an array of ideal crown ethers....

  11. Sensitivity analysis of semidefinite programs without strong duality

    E-Print Network [OSTI]

    Yuen-Lam Cheung

    2014-06-30T23:59:59.000Z

    Jun 30, 2014 ... Sensitivity analysis of semidefinite programs without strong duality. Yuen-Lam Cheung(yl2cheun ***at*** uwaterloo.ca)

  12. Sandia Energy - JBEI Research Receives Strong Industry Interest...

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

    Research Receives Strong Industry Interest in DOE Technology Transfer Call Home Renewable Energy Energy Biofuels Facilities Partnership JBEI News News & Events Research &...

  13. Crown Ethers Flatten in Graphene for Strong, Specific Binding...

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

    SHARE Crown Ethers Flatten in Graphene for Strong, Specific Binding ORNL discovery holds potential for separations, sensors, batteries, biotech and more This sheet of graphene...

  14. A strong conic quadratic reformulation for machine-job assignment ...

    E-Print Network [OSTI]

    M. Selim Akturk

    2007-06-26T23:59:59.000Z

    Jun 26, 2007 ... A strong conic quadratic reformulation for machine-job assignment with ... Category 2: Linear, Cone and Semidefinite Programming ...

  15. ON THE KK-THEORY OF STRONGLY SELF-ABSORBING ...

    E-Print Network [OSTI]

    2007-05-29T23:59:59.000Z

    be simple and nuclear; moreover, they are either purely infinite or stably finite. The only known examples of strongly self-absorbing C?-algebras are the UHF ...

  16. Shared savings and low income homeowners: Results of a demonstration project in Hennepin County

    SciTech Connect (OSTI)

    Miller, R.D.; Ford, J.M.

    1986-04-01T23:59:59.000Z

    In 1984 Hennepin County, with financial support from the US Department of Energy and as part of the Year Five energy program of the Urban Consortium's Energy Task Force, initiated a Residential Shared Savings Demonstration Project (RSSDP) for single family homeowners. Shared savings, or performance contracting, occurs when an energy service company (ESCo) finances and installs energy improvements in a customer's property and receives a share of the savings that result over time as their compensation. Chapter 1 of this report provides general background on the project, including a brief description of Hennepin County, the energy environment within which the project was conducted, and the Residential Shared Savings Demonstration Project. Chapter 2 describes the efforts to market the RSSDP to low income homeowners, the results of those efforts and the findings from an extensive market assessment effort. Chapter 3 summarizes the significant lessons learned during the project. 4 figs., 3 tabs.

  17. The Impact of Carbon Control on Low-Income Household Electricity and Gasoline Expenditures

    SciTech Connect (OSTI)

    Eisenberg, Joel Fred [ORNL

    2008-06-01T23:59:59.000Z

    In July of 2007 The Department of Energy's (DOE's) Energy Information Administration (EIA) released its impact analysis of 'The Climate Stewardship And Innovation Act of 2007,' known as S.280. This legislation, cosponsored by Senators Joseph Lieberman and John McCain, was designed to significantly cut U.S. greenhouse gas emissions over time through a 'cap-and-trade' system, briefly described below, that would gradually but extensively reduce such emissions over many decades. S.280 is one of several proposals that have emerged in recent years to come to grips with the nation's role in causing human-induced global climate change. EIA produced an analysis of this proposal using the National Energy Modeling System (NEMS) to generate price projections for electricity and gasoline under the proposed cap-and-trade system. Oak Ridge National Laboratory integrated those price projections into a data base derived from the EIA Residential Energy Consumption Survey (RECS) for 2001 and the EIA public use files from the National Household Transportation Survey (NHTS) for 2001 to develop a preliminary assessment of impact of these types of policies on low-income consumers. ORNL will analyze the impacts of other specific proposals as EIA makes its projections for them available. The EIA price projections for electricity and gasoline under the S.280 climate change proposal, integrated with RECS and NHTS for 2001, help identify the potential effects on household electric bills and gasoline expenditures, which represent S.280's two largest direct impacts on low-income household budgets in the proposed legislation. The analysis may prove useful in understanding the needs and remedies for the distributive impacts of such policies and how these may vary based on patterns of location, housing and vehicle stock, and energy usage.

  18. Infrared Limit of Gluon Amplitudes at Strong Coupling

    E-Print Network [OSTI]

    Evgeny I. Buchbinder

    2007-07-27T23:59:59.000Z

    In this note, we propose that the infrared structure of gluon amplitudes at strong coupling can be fully extracted from a local consideration near cusps. This is consistent with field theory and correctly reproduces the infrared divergences of the four-gluon amplitude at strong coupling calculated recently by Alday and Maldacena.

  19. Anisotropy of strong pinning in multi-band superconductors

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Anisotropy of strong pinning in multi-band superconductors C.J. van der Beek, M. Konczykowski of the critical current density in iron-based superconductors is evaluated using a phenomenological approach collective pinning limit, and the strong pinning limit relevant for iron-based superconductors at low

  20. ELECTROMAGNETIC RADIATION FROM A STRONG DC ELECTRIC FIELD

    E-Print Network [OSTI]

    Guedel, Manuel

    ELECTROMAGNETIC RADIATION FROM A STRONG DC ELECTRIC FIELD Manuel G¨udel 1 and Donat G. Wentzel 2 1 accelerated by a strong dc electric field show not only very efficient generation of beam waves but also emission of o­mode radiation. We present a set of particle simulations for which we study the behavior

  1. Computing Lyapunov functions for strongly asymptotically stable differential inclusions

    E-Print Network [OSTI]

    Hafstein, Sigurður Freyr

    Computing Lyapunov functions for strongly asymptotically stable differential inclusions R. Baier L a numerical algorithm for computing Lyapunov functions for a class of strongly asymptotically stable nonlinear Lyapunov function. We provide a thorough analysis of the method and present two numerical examples

  2. A demographic analysis of the low income farm areas of the Southwest

    E-Print Network [OSTI]

    Feagan, Johnny Ray

    1958-01-01T23:59:59.000Z

    and natirity as veil as ri tel procesoe ~ and . igrstion should be obtained. Their report shove the influence of the vital processes and migration upon characteristics . "f Niohigan~ ~ p"puiation and compare ~ Ches ~ charaoteri sties vith other nearby...

  3. E000308 economic development and the environment Economic development in low-income economies is initially highly resource-

    E-Print Network [OSTI]

    Coxhead, Ian

    E000308 economic development and the environment Economic development in low-income economies sources of emissions that contribute to global climate change. Economic development depends on sustained drawdowns, may affect economic development in a dynamic interaction. This feedback is hard to quantify

  4. An Analysis of Low Cost, Energy Efficient, Housing for Low-income Residents of How and Humid Climates 

    E-Print Network [OSTI]

    Kootin-Sanwu, Victor

    2004-01-01T23:59:59.000Z

    the implementation of cost-effective construction of low-income housing using volunteer labor. The research uses a case study approach where a base-line energy use is established using a comparative Princeton Score Keeping Method (PRISM) analysis and measurements...

  5. INCOMING WIRE/ACH University units expecting to receive funds via wire or ACH (Automated Clearing House) should inform the

    E-Print Network [OSTI]

    Arnold, Jonathan

    INCOMING WIRE/ACH University units expecting to receive funds via wire or ACH (Automated Clearing form. The Bursar's Office cannot properly record there funds until University units provide deposit Transmittal and fax the completed form to 706-583-0832. OUTGOING WIRES University units needing to wire funds

  6. "Smoking Cessation Interventions and Program Availability for Drug and Alcohol Addicted Low Income Populations in Substance Abuse Treatment"

    E-Print Network [OSTI]

    Arnold, Jonathan

    "Smoking Cessation Interventions and Program Availability for Drug and Alcohol Addicted Low Income. The first aim examines longitudinally the availability of EBTs for smoking among those seeking treatment for co-occurring substance abuse and explores the predictors of changes in service availability over time

  7. Left to Our Own Devices – Financing Efficiency for Small Business and Low-Income Families (2009 Environmental Defense Fund Report)

    Broader source: Energy.gov [DOE]

    There is a widely known gap between cost-effective behavior, consumption patterns and actual marketplace conditions. This •engineering gap/efficiency gap is particularly the case for low-income households and small businesses, which tend to depend on older, inefficient equipment. This study identifies the limitations of current and potential of relatively new mechanisms for efficiency investment micro-financing.

  8. An Analysis of Low Cost, Energy Efficient, Housing for Low-income Residents of How and Humid Climates

    E-Print Network [OSTI]

    Kootin-Sanwu, Victor

    the implementation of cost-effective construction of low-income housing using volunteer labor. The research uses a case study approach where a base-line energy use is established using a comparative Princeton Score Keeping Method (PRISM) analysis and measurements...

  9. Economic Impacts of Marcellus Shale in Pennsylvania: Employment and Income in 2009 2011 Penn State Extension and Penn College www.msetc.org 1

    E-Print Network [OSTI]

    Boyer, Elizabeth W.

    Economic Impacts of Marcellus Shale in Pennsylvania: Employment and Income in 2009 ©2011 Penn State Extension and Penn College www.msetc.org 1 Economic Impacts of Marcellus Shale in Pennsylvania: Employment and Income in 2009 August 2011 www.msetc.org The Marcellus Shale Education & Training Center (MSETC

  10. QCD phase diagram from the lattice at strong coupling

    E-Print Network [OSTI]

    de Forcrand, Philippe; Unger, Wolfgang

    2015-01-01T23:59:59.000Z

    The phase diagram of lattice QCD in the strong coupling limit can be measured in the full $\\mu$-$T$ plane, also in the chiral limit. In particular, the phase diagram in the chiral limit features a tricritical point at some $(\\mu_c,T_c)$. This point may be related to the critical end point expected in the QCD phase diagram. We discuss the gauge corrections to the phase diagram at strong coupling and compare our findings with various possible scenarios in continuum QCD. We comment on the possibility that the tricritical point at strong coupling is connected to the tricritical point in the continuum, massless QCD.

  11. Dynamical Electron Mass in a Strong Magnetic Field

    E-Print Network [OSTI]

    S. -Y. Wang

    2008-01-28T23:59:59.000Z

    Motivated by recent interest in understanding properties of strongly magnetized matter, we study the dynamical electron mass generated through approximate chiral symmetry breaking in QED in a strong magnetic field. We reliably calculate the dynamical electron mass by numerically solving the nonperturbative Schwinger-Dyson equations in a consistent truncation within the lowest Landau level approximation. It is shown that the generation of dynamical electron mass in a strong magnetic field is significantly enhanced by the perturbative electron mass that explicitly breaks chiral symmetry in the absence of a magnetic field.

  12. Strong and weak gravitational field in $R+?^4/R$ gravity

    E-Print Network [OSTI]

    Kh. Saaidi; A. Vajdi; S. W. Rabiei; A. Aghamohammadi; H. Sheikhahmadi

    2012-01-18T23:59:59.000Z

    We introduce a new approach for investigating the weak field limit of vacuum field equations in $f(R)$ gravity and we find the weak field limit of $f(R)=R+\\mu ^4/R$ gravity. Furthermore, we study the strong gravity regime in $R+\\mu^{4}/R$ model of $f(R)$ gravity. We show the existence of strong gravitational field in vacuum for such model. We find out in the limit $\\mu\\rightarrow 0$, the weak field limit and the strong gravitational field can be regarded as a perturbed Schwarzschild metric.

  13. Wind emission of OB supergiants and the influence of clumping

    E-Print Network [OSTI]

    Michaela Kraus; Jiri Kubat; Jiri Krticka

    2007-08-06T23:59:59.000Z

    The influence of the wind to the total continuum of OB supergiants is discussed. For wind velocity distributions with \\beta > 1.0, the wind can have strong influence to the total continuum emission, even at optical wavelengths. Comparing the continuum emission of clumped and unclumped winds, especially for stars with high \\beta values, delivers flux differences of up to 30% with maximum in the near-IR. Continuum observations at these wavelengths are therefore an ideal tool to discriminate between clumped and unclumped winds of OB supergiants.

  14. Observation and Control of Electronic Phases in Strongly Correlated...

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

    Observation and Control of Electronic Phases in Strongly Correlated Oxides Apr 09 2014 10:00 AM - 11:00 AM Zac Ward, Materials Science and Technology Division, ORNL PSD Materials...

  15. Chiral symmetry of graphene and strong coupling lattice gauge theory

    E-Print Network [OSTI]

    Yasufumi Araki; Tetsuo Hatsuda

    2010-10-28T23:59:59.000Z

    We model the electrons on a monolayer graphene in terms of the compact and non-compact U(1) lattice gauge theories. The system is analyzed by the strong coupling expansion and is shown to be an insulator due to dynamical gap formation in/around the strong coupling limit. This is similar to the spontaneous chiral symmetry breaking in strong coupling gauge theories. The results from the compact and non-compact formulations are compared up to the next-to-leading order of the strong coupling expansion. Excitonic modes and their dispersion relations in the insulating phase are also investigated: it is found that there arises a pseudo-Nambu--Goldstone mode obeying the Gell-Mann--Oakes--Renner type formula.

  16. Neutron stars and strong-field effects of general relativity

    E-Print Network [OSTI]

    W. Kluzniak

    2000-12-29T23:59:59.000Z

    The basic observed properties of neutron stars are reviewed. I suggest that neutron stars in low-mass X-ray binaries are the best of all known sites for testing strong-field effects of general relativity.

  17. Discovery of a Single Topological Dirac Fermion in the Strong...

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

    Dirac Fermion in the Strong Inversion Asymmetric Compound BiTeCl Friday, January 31, 2014 Topological insulators comprise a new state of quantum matter that has been predicted...

  18. A review on axions and the strong CP problem

    SciTech Connect (OSTI)

    Kim, Jihn E. [Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of)

    2010-02-10T23:59:59.000Z

    We review the recent developments on axion physics. Some new comments on the strong CP problem, the axion mass, and the simple energy loss mechanism of white dwarfs and related issues are included.

  19. Effective hydraulic conductivity of bounded, strongly heterogeneous porous media

    E-Print Network [OSTI]

    Tartakovsky, Daniel M.

    Effective hydraulic conductivity of bounded, strongly heterogeneous porous media Evangelos K of Arizona, Tucson Abstract. We develop analytical expressions for the effective hydraulic conductivity Ke boundaries. The log hydraulic conductivity Y forms a Gaussian, statistically homogeneous and anisotropic

  20. Pairing and superfluidity in strongly interacting Fermi gases

    E-Print Network [OSTI]

    Schunck, Christian H. (Christian Heinrich)

    2008-01-01T23:59:59.000Z

    This thesis describes experiments with superfluid spin mixtures of ultracold fermionic 6Li atoms. The properties of the strongly interacting gas are studied in the crossover regime between Bose-Einstein condensation (BEC) ...

  1. Looking for strong polynomiality in Linear Programming : Arguments ...

    E-Print Network [OSTI]

    peter bruijs

    2015-01-06T23:59:59.000Z

    sequence has an exponential length measured in terms of m and n, thereby refuting strong ..... room for one new single variable to enter the basis, while in the gradient concept presented .... the new search space locally left for improvement.

  2. Carbon Emissions from Smouldering Peat in Shallow and Strong Fronts 

    E-Print Network [OSTI]

    Rein, Guillermo; Cohen, Simon; Simeoni, Albert

    2009-01-01T23:59:59.000Z

    A series of experiments of shallow and strong smouldering fronts in boreal peat have been conducted under laboratory conditions to study the CO and CO2 emissions. Peat samples of 100 mm by 100 mm in cross section and 50 ...

  3. Inversion of Shear Wave Anisotropic Parameters in Strongly Anisotropic Formations

    E-Print Network [OSTI]

    Tang, Xiaoming

    2006-01-01T23:59:59.000Z

    Deepwater reservoirs use highly deviated wells to reduce cost and enhance hydrocarbon recovery. Due to the strong anisotropic nature of many of the marine sediments, anisotropic seismic imaging and interpretation can improve ...

  4. A polynomial algorithm for linear optimization which is strongly ...

    E-Print Network [OSTI]

    2015-01-31T23:59:59.000Z

    In the general case it is an open question whether there exists a strongly ..... ei ? a). T. 1 ? 1. 2. ? ?. To understand how this simple lemma works in the context of

  5. Locally Optimal Control of Quantum Systems with Strong Feedback

    E-Print Network [OSTI]

    Alireza Shabani; Kurt Jacobs

    2008-12-07T23:59:59.000Z

    For quantum systems with high purity, we find all observables that, when continuously monitored, maximize the instantaneous reduction in the von Neumann entropy. This allows us to obtain all locally optimal feedback protocols with strong feedback, and explicit expressions for the best such protocols for systems of size N optimal protocol is the optimal protocol for a given range of control times, and derive an upper bound on all optimal protocols with strong feedback.

  6. Viscoelastic modes in a strongly coupled, cold, magnetized dusty plasma

    SciTech Connect (OSTI)

    Banerjee, Debabrata; Mylavarapu, Janaki Sita; Chakrabarti, Nikhil [Saha Institute of Nuclear Physics, I/AF Bidhannagar, Calcutta 700 064 (India)

    2010-11-15T23:59:59.000Z

    A generalized hydrodynamical model has been used to study the low frequency modes in a strongly coupled, cold, magnetized dusty plasma. Such plasmas exhibit elastic properties due to the strong correlations among dust particles and the tensile stresses imparted by the magnetic field. It has been shown that longitudinal compressional Alfven modes and elasticity modified transverse shear mode exist in such a medium. The features of these collective modes are established and discussed.

  7. Integrating Photovoltaic Systems into Low-Income Housing Developments: A Case Study on the Creation of a New Residential Financing Model and Low-Income Resident Job Training Program, September 2011 (Brochure)

    SciTech Connect (OSTI)

    Dean, J.; Smith-Dreier, C.; Mekonnen, G.; Hawthorne, W.

    2011-09-01T23:59:59.000Z

    This case study covers the process of successfully integrating photovoltaic (PV) systems into a low-income housing development in northeast Denver, Colorado, focusing specifically on a new financing model and job training. The Northeast Denver Housing Center (NDHC), working in cooperation with Del Norte Neighborhood Development Corporation, Groundwork Denver, and the National Renewable Energy Laboratory (NREL), was able to finance the PV system installations by blending private equity funding with utility rebates, federal tax credits, and public sector funding. A grant provided by the Governor's Energy Office allowed for the creation of the new financing model. In addition, the program incorporated an innovative low-income job training program and an energy conservation incentive program.

  8. Photoinduced band filling in strongly confined colloidal PbS quantum dots

    SciTech Connect (OSTI)

    Ullrich, B., E-mail: bruno@fis.unam.mx [Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos 62210 (Mexico); Ullrich Photonics LLC, Wayne, Ohio 43466 (United States); Xi, H. [Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio 43403-0209 (United States); Wang, J. S. [Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright Patterson AFB, Ohio 45433-7707 (United States)

    2014-06-21T23:59:59.000Z

    Increase in continuous wave laser excitation (6?W/cm{sup 2} to 120?W/cm{sup 2}) of colloidal PbS quantum dots in the strongly quantized regime (diameters 2.0?nm and 4.7?nm) deposited on semi-insulating GaAs and glass causes a clear blue shift (0.019?eV and 0.080?eV) of the emission spectra. Proof of the applicability of a dynamic three-dimensional band filling model is the significance of the presented results and demonstrates the effective electronic coupling in quantum dot arrays similar to superlattices. The work also reveals the influence of quantum dot sizes on photo-doping effects.

  9. Quantum Information Processing by NMR using strongly coupled spins

    E-Print Network [OSTI]

    T. S. Mahesh; Neeraj Sinha; Arindam Ghosh; Ranabir Das; N. Suryaprakash; Malcom H. Levitt; K. V. Ramanathan; Anil Kumar

    2003-11-24T23:59:59.000Z

    The enormous theoretical potential of Quantum Information Processing (QIP) is driving the pursuit for its practical realization by various physical techniques. Currently Nuclear Magnetic Resonance (NMR) has been the forerunner by demonstrating a majority of quantum algorithms. In NMR, spin systems consisting of coupled nuclear spins are utilized as qubits. In order to carry out QIP, a spin system has to meet two major requirements: (i) qubit addressability and (ii) mutual coupling among the qubits. It has been demonstrated that the magnitude of the mutual coupling among qubits can be increased by orienting the spin-systems in a liquid crystal matrix and utilizing the residual dipolar couplings. While utilizing residual dipolar couplings may be useful to increase the number of qubits, nuclei of same species (homonuclei) might become strongly coupled. In strongly coupled spin-systems, spins loose their individual identity of being qubits. We propose that even such strongly coupled spin-systems can be used for QIP and the qubit-manipulation can be achieved by transition-selective pulses. We demonstrate experimental preparation of pseudopure states, creation of maximally entangled states, implementation logic gates and implementation of Deutsch-Jozsa (DJ) algorithm in strongly coupled 2,3 and 4 spin systems. The energy levels of the strongly coupled 3 and 4 spin systems were obtained by using a Z-COSY experiment.

  10. Strong mechanical driving of a single electron spin

    E-Print Network [OSTI]

    Arne Barfuss; Jean Teissier; Elke Neu; Andreas Nunnenkamp; Patrick Maletinsky

    2015-03-23T23:59:59.000Z

    Quantum devices for sensing and computing applications require coherent quantum systems which can be manipulated in a fast and robust way. Such quantum control is typically achieved using external electric or magnetic fields which drive the system's orbital or spin degrees of freedom. However, most of these approaches require complex and unwieldy antenna or gate structures, and with few exceptions are limited to the regime of weak driving. Here, we present a novel approach to strongly and coherently drive a single electron spin in the solid state using internal strain fields in an integrated quantum device. Specifically, we study individual Nitrogen-Vacancy (NV) spins embedded in diamond mechanical oscillators and exploit the intrinsic strain coupling between spin and oscillator to strongly drive the spins. As hallmarks of the strong driving regime, we directly observe the energy spectrum of the emerging phonon-dressed states and employ our strong, continuous driving for enhancement of the NV spin coherence time. Our results constitute a first step towards strain-driven, integrated quantum devices and open new perspectives to investigate unexplored regimes of strongly driven multi-level systems and to study exotic spin dynamics in hybrid spin-oscillator devices.

  11. The influence of alternative price and allotment programs on farm organization and income for irrigated fine textured soils on the high plains of Texas

    E-Print Network [OSTI]

    Meharg, John Robert

    1964-01-01T23:59:59.000Z

    Supply 2, 125 -'~ 2, 500 ? ~ 4, 625 Labnr. 'Supply by Perrods Nov, ? Jan. 15 Jan. 15 ? April May ? June 637 892 510 654 893 521 1, 291 1, 785 1, 031 July 300 300 600 August Sept. - Oct. 300 510 300 521 600 1, 031 a Bob Davis...

  12. Homotopy Theory of Strong and Weak Topological Insulators

    E-Print Network [OSTI]

    Ricardo Kennedy; Charles Guggenheim

    2014-09-08T23:59:59.000Z

    We use homotopy theory to extend the notion of strong and weak topological insulators to the non-stable regime (low numbers of occupied/empty energy bands). We show that for strong topological insulators in d spatial dimensions to be "truly d-dimensional", i.e. not realizable by stacking lower-dimensional insulators, a more restrictive definition of "strong" is required. However, this does not exclude weak topological insulators from being "truly d-dimensional", which we demonstrate by an example. Additionally, we prove some useful technical results, including the homotopy theoretic derivation of the factorization of invariants over the torus into invariants over spheres in the stable regime, as well as the rigorous justification of replacing $T^d$ by $S^d$ and $T^{d_k}\\times S^{d_x}$ by $S^{d_k+d_x}$ as is common in the current literature.

  13. Generalized eikonal approximation for strong-field ionization

    E-Print Network [OSTI]

    Vélez, F Cajiao; Kami?ski, J Z

    2015-01-01T23:59:59.000Z

    We develop the eikonal perturbation theory to describe the strong-field ionization by finite laser pulses. This approach in the first order with respect to the binding potential (the so-called generalized eikonal approximation) avoids a singularity at the potential center. Thus, in contrast to the ordinary eikonal approximation, it allows to treat rescattering phenomena in terms of quantum trajectories. We demonstrate how the first Born approximation and its domain of validity follow from eikonal perturbation theory. Using this approach, we study the coherent diffraction patterns in photoelectron energy spectra and their modifications induced by the interaction of photoelectrons with the atomic potential. Along with these first results, we discuss the prospects of using the generalized eikonal approximation to study strong-field ionization from multi-centered atomic systems and to study other strong-field phenomena.

  14. Strong Fourier Sampling Fails over $G^n$

    E-Print Network [OSTI]

    Gorjan Alagic; Cristopher Moore; Alexander Russell

    2005-11-07T23:59:59.000Z

    We present a negative result regarding the hidden subgroup problem on the powers $G^n$ of a fixed group $G$. Under a condition on the base group $G$, we prove that strong Fourier sampling cannot distinguish some subgroups of $G^n$. Since strong sampling is in fact the optimal measurement on a coset state, this shows that we have no hope of efficiently solving the hidden subgroup problem over these groups with separable measurements on coset states (that is, using any polynomial number of single-register coset state experiments). Base groups satisfying our condition include all nonabelian simple groups. We apply our results to show that there exist uniform families of nilpotent groups whose normal series factors have constant size and yet are immune to strong Fourier sampling.

  15. Effects of commercialized deer hunting arrangements on ranch organization, management, costs, and income--the Llano Basin of Texas

    E-Print Network [OSTI]

    Forrest, Nathan Kelly

    1968-01-01T23:59:59.000Z

    Income and Expense Summary Leasing Arrangements Used to Operate Shooting Preserves Description of Hunting Systems Season lease Day lease Season lease with doe hunting option Season and day lease combination Relative Profitability of the Various.... and Llano Basins . . . . . . . . . . . . . . . . . . . . . 41 7, Percent calf crop for each of the modal ranch 's 41 Cattle sales per acre for each representative ranch , . 43 9. Cash costs invol. ved in operating a season lease hunting system on each...

  16. Status orientations toward family development: A racial comparison of adolescent girls from low-income rural areas.

    E-Print Network [OSTI]

    Obordo, Angelita Sauco

    1968-01-01T23:59:59.000Z

    ~ To my parents without whose many sacrifices this thetis would not have been possible, I extend my sincere gratitude and appreciation. Finally, I am grateful to my husband, Romeo, for his encouragement and understanding throughout the duration of my... and Measurements ~ . Age at Marriage Family Size . ~ Husband's Income . . . ~ ~ Husband's Job ? Work After Marriage ~ Social Class Heasure ~ . . . , . ~ Outline of Analysis ~ . Data Processing and Statistical Analysis ~ . . ~ 4 ~ ~ ~ ~ ~ ~ ~ 20 20 21...

  17. Solar Influence on the North Atlantic Oscillation - Initial Results

    E-Print Network [OSTI]

    Dacie, Sally

    2015-01-01T23:59:59.000Z

    Some initial investigations into various atmospheric phenomena and the influence of the solar cycle on weather have been made. Strongly negative North Atlantic Oscillation (NAO) indices, which cause cold and dry winter weather in North West Europe, rarely occur during periods of high solar activity. Coupling between the troposphere and stratosphere is discussed, particularly in the context of Polar-night jet oscillation events (defined by Hitchcock et al., 2013) and the Quasi-Biennial Oscillation. The energy of North Atlantic hurricanes (as indicated by the Accumulated Cyclone Energy Index, ACE) is also linked to solar activity, via UV heating at the tropopause (Elsner et al., 2010), and is suggested as a possible mechanism through which solar activity could influence the NAO. Finally the lack of solar influence on the NAO before $\\sim$ 1950 is addressed, with a possible cause being the smaller solar cycle amplitudes. This short report contains several ideas, which may be worth pursuing further.

  18. A study of strong ergodicity in nonhomogeneous Markov chains

    E-Print Network [OSTI]

    Davis, Janet Claire

    1974-01-01T23:59:59.000Z

    A STUDY OF STRONG ERGODICITY IN NON-HOMOGENEOUS MARKOV CHAINS A Thesis JANET CLAIRE DAVIS Submitted to the Graduate College of Texas AEcM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1974... Major Subject: Mathematics A STUDY OF STRONG ERGODICITY IN NON-HOMOGENEOUS MARKOV CHAINS A Thesis JANET CLAIRE DAVIS Approved as to style and content by: 8 h irman of C itte Head of Department Member Member August f974 ABSTRACT A Study...

  19. An optical cavity with a strongly focused mode

    SciTech Connect (OSTI)

    Durak, Kadir; Victor, Leong Xu Heng; Huan, Nguyen Chi; Maslennikov, Gleb; Kurtsiefer, Christian [NUS, Center for Quantum Technologies/Physics Dept, 3 Science Drive 2, 117543 (Singapore); Straupe, Stanislav [NUS, Center for Quantum Technologies/Physics Dept, 3 Science Drive 2, 117543, Singapore and Faculty of Physics, Moscow State University (Russian Federation)

    2013-12-16T23:59:59.000Z

    Atom-photon interfaces are one of the building blocks of the future quantum information protocols. Accomplishing a strong interaction between the atom and the photons can be successfully done by high finesse and small mode volume cavities. However, this method requires sophisticated dielectric coatings and stabilization of the cavity against even small vibrations and small line width of those cavities impose higher input photon numbers if spontaneously emitted photons are to be used, which make it seem hard to scale up such atom-light interfaces to form quantum networks. An alternative method is to use a nearly concentric cavity, which has a strongly focused optical mode.

  20. Treating Cancer with Strong Magnetic Fields and Ultrasound

    E-Print Network [OSTI]

    Dr. Friedwardt Winterberg

    2009-06-03T23:59:59.000Z

    It is proposed to treat cancer by the combination of a strong magnetic field with intense ultrasound. At the low electrical conductivity of tissue the magnetic field is not frozen into the tissue, and oscillates against the tissue which is brought into rapid oscillation by the ultrasound. As a result, a rapidly oscillating electric field is induced in the tissue, strong enough to disrupt cancer cell replication. Unlike radio frequency waves, which have been proposed for this purpose, ultrasound can be easily focused onto the regions to be treated. This method has the potential for the complete eradication of the tumor.

  1. Suppression of Quantum Scattering in Strongly Confined Systems

    SciTech Connect (OSTI)

    Kim, J. I. [Departamento de Pesquisas, Altanova, R. Silva Teles 712, CEP 03026-000, Bras, Sa(tilde sign)o Paulo, SP, Brasil (Brazil); Melezhik, V. S. [Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Moscow Region 141980 (Russian Federation); Schmelcher, P. [Physikalisches Institut, Universitaet Heidelberg, Philosophenweg 12, 69120 Heidelberg (Germany); Theoretische Chemie, Institut fuer Physikalische Chemie, Universitaet Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg (Germany)

    2006-11-10T23:59:59.000Z

    We demonstrate that scattering of particles strongly interacting in three dimensions (3D) can be suppressed at low energies in a quasi-one-dimensional (1D) confinement. The underlying mechanism is the interference of the s- and p-wave scattering contributions with large s- and p-wave 3D scattering lengths being a necessary prerequisite. This low-dimensional quantum scattering effect might be useful in 'interacting' quasi-1D ultracold atomic gases, guided atom interferometry, and impurity scattering in strongly confined quantum wire-based electronic devices.

  2. Strongly Coupled Plasmas via Rydberg-Blockade of Cold Atoms

    E-Print Network [OSTI]

    Bannasch, G; Pohl, T

    2013-01-01T23:59:59.000Z

    We propose and analyze a new scheme to produce ultracold neutral plasmas deep in the strongly coupled regime. The method exploits the interaction blockade between cold atoms excited to high-lying Rydberg states and therefore does not require substantial extensions of current ultracold plasma experiments. Extensive simulations reveal a universal behavior of the resulting Coulomb coupling parameter, providing a direct connection between the physics of strongly correlated Rydberg gases and ultracold plasmas. The approach is shown to reduce currently accessible temperatures by more than an order of magnitude, which opens up a new regime for ultracold plasma research and cold ion-beam applications with readily available experimental techniques.

  3. Direct measurement of the quantum wavefunction by strong measurements

    E-Print Network [OSTI]

    Giuseppe Vallone; Daniele Dequal

    2015-04-24T23:59:59.000Z

    Weak measurements are supposed to be essential for the so called direct measurement of the quantum wavefunction [Nature (London) 474, 188 (2011)]. Here we show that direct measurement of the wavefunction can be obtained by using measurements of arbitrary strength. In particular, in the case of strong (i.e. projective) measurements, we compared the precision and the accuracy of the two methods, by showing that strong measurements outperform weak measurements in both. We also give the exact expression of the reconstructed wavefunction obtained by the weak measurement approach, allowing to define the range of applicability of such method.

  4. Factors influencing quantitative liquid (scanning) transmission...

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

    Factors influencing quantitative liquid (scanning) transmission electron microscopy. Factors influencing quantitative liquid (scanning) transmission electron microscopy. Abstract:...

  5. Heat blanketing envelopes and thermal radiation of strongly magnetized neutron stars

    E-Print Network [OSTI]

    A. Y. Potekhin; G. Chabrier; D. G. Yakovlev

    2007-09-04T23:59:59.000Z

    Strong (B >> 10^9 G) and superstrong (B > 10^{14} G) magnetic fields profoundly affect many thermodynamic and kinetic characteristics of dense plasmas in neutron star envelopes. In particular, they produce strongly anisotropic thermal conductivity in the neutron star crust and modify the equation of state and radiative opacities in the atmosphere, which are major ingredients of the cooling theory and spectral atmosphere models. As a result, both the radiation spectrum and the thermal luminosity of a neutron star can be affected by the magnetic field. We briefly review these effects and demonstrate the influence of magnetic field strength on the thermal structure of an isolated neutron star, putting emphasis on the differences brought about by the superstrong fields and high temperatures of magnetars. For the latter objects, it is important to take proper account of a combined effect of the magnetic field on thermal conduction and neutrino emission at densities \\rho > 10^{10} g cm^{-3}. We show that the neutrino emission puts a B-dependent upper limit on the effective surface temperature of a cooling neutron star.

  6. Strong coupling effects in near-barrier heavy-ion elastic scattering

    E-Print Network [OSTI]

    N. Keeley; K. W. Kemper; K. Rusek

    2014-09-25T23:59:59.000Z

    Accurate elastic scattering angular distribution data measured at bombarding energies just above the Coulomb barrier have shapes that can markedly differ from or be the same as the expected classical Fresnel scattering pattern depending on the structure of the projectile, the target or both. Examples are given such as 18O + 184W and 16O + 148,152Sm where the expected rise above Rutherford scattering due to Coulomb-nuclear interference is damped by coupling to the target excited states, and the extreme case of 11Li scattering, where coupling to the 9Li + n + n continuum leads to an elastic scattering shape that cannot be reproduced by any standard optical model parameter set. The recent availability of high quality 6He, 11Li and 11Be data provides further examples of the influence that coupling effects can have on elastic scattering. Conditions for strong projectile-target coupling effects are presented with special emphasis on the importance of the beam-target charge combination being large enough to bring about the strong coupling effects. Several measurements are proposed that can lead to further understanding of strong coupling effects by both inelastic excitation and nucleon transfer on near-barrier elastic scattering. A final note on the anomalous nature of 8B elastic scattering is presented as it possesses a more or less normal Fresnel scattering shape whereas one would a priori not expect this due to the very low breakup threshold of 8B. The special nature of 11Li is presented as it is predicted that no matter how far above the Coulomb barrier the elastic scattering is measured, its shape will not appear as Fresnel like whereas the elastic scattering of all other loosely bound nuclei studied to date should eventually do so as the incident energy is increased, making both 8B and 11Li truly "exotic".

  7. Surfzone eddies in strong alongshore currents: Forced or Instabilities?

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    Surfzone eddies in strong alongshore currents: Forced or Instabilities? Falk Feddersen Associate by surfzone 2D turbulent eddies, which have length-scales > the water depth. Our group's results regarding surfzone eddy-induced mixing learned from dye, drifter, theory, and modeling will be reviewed - however

  8. Strong adsorption of aminotriazines on graphene James D. Wuesta

    E-Print Network [OSTI]

    Rochefort, Alain

    Strong adsorption of aminotriazines on graphene James D. Wuesta and Alain Rochefortw*b Received (in affinity for graphite and suggest that part of the driving force for adsorption is a specific attractive interaction of NR2 groups with the underlying surface. Molecular adsorption on surfaces is a key step

  9. A strong polynomial gradient algorithm in Linear Programming

    E-Print Network [OSTI]

    peter bruijs

    2015-03-31T23:59:59.000Z

    Page 1 ... Karmarkar don't have the strong characteristic. ... Probably he had no notion of the concept of a convex space, so that is what will have to be .... For the best direction that is left now, one has to exclude from the gradient c exactly and.

  10. Strong Correlation Effects in Graphene in the Quantum Hall Regime

    E-Print Network [OSTI]

    Paris-Sud 11, Université de

    Strong Correlation Effects in Graphene in the Quantum Hall Regime Mark Oliver Goerbig 16 June 2008;Graphene = 2D Graphite 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 degeneracy: spin valley Energy electrons holes k k k ky x x yK' K K' K K K' #12;Correlations in graphene

  11. FACTS about threat Possible INTERVENTIONS Strong domain identification

    E-Print Network [OSTI]

    Chisholm, Rex L.

    FACTS about threat Possible INTERVENTIONS Strong domain identification heightens the effect are able to self affirm in difficult situations can lessen the effects of threat. Encourage students to use to students not under threat. Educate students on self talk! Teach them to pay close attention

  12. Molecular Dynamics of Methanol Monocation (CH3OH+ ) in Strong

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    Molecular Dynamics of Methanol Monocation (CH3OH+ ) in Strong Laser Fields Bishnu Thapa and H surfaces of methanol neutral, monocation, and singlet and triplet dication were explored using the CBS in the presence of a 2.9 × 1014 W/cm2 800 nm laser field for methanol monocation on the ground state potential

  13. Strongly Stabilizing Controller Synthesis for a Class of MIMO Plants

    E-Print Network [OSTI]

    Gundes, A. N.

    Strongly Stabilizing Controller Synthesis for a Class of MIMO Plants H. ¨Ozbay A. N. G controller) is studied for unstable MIMO plants with arbitrary number of finitely many poles but no more than not exceeding that of the plant, are obtained for such plants satisfying the parity interlacing property

  14. Practical thermodynamics of Yukawa systems at strong coupling

    E-Print Network [OSTI]

    Khrapak, Sergey A; Yurchenko, Stanislav O; Thomas, Hubertus M

    2015-01-01T23:59:59.000Z

    Simple practical approach to estimate thermodynamic properties of strongly coupled Yukawa systems, in both fluid and solid phases, is presented. The accuracy of the approach is tested by extensive comparison with direct computer simulation results (for fluids and solids) and the recently proposed shortest-graph method (for solids). Possible applications to other systems of softly repulsive particles are briefly discussed.

  15. ROTATIONAL LEADERSHIP PROGRAM Grow strong leadership skillsin a

    E-Print Network [OSTI]

    Kaminsky, Werner

    ROTATIONAL LEADERSHIP PROGRAM #12;Grow strong leadership skillsin a one-of-a-kindFortune500. As an Evergreen, you'll be part of an 18-month leadership rotation at our Tacoma and Federal Way, Washington and mentor them to become a valuable part of our leadership succession plan. " Jim Hilger Chief Accounting

  16. Availability Impact on GPS Aviation due to Strong

    E-Print Network [OSTI]

    Stanford University

    /3/941774. Refereeing of this contribution was handled by M. Braasch. This work was supported by the Federal Aviation Administration (FAA) CRDA 08-G-007. The opinions discussed here are those of the authors and do not necessarilyAvailability Impact on GPS Aviation due to Strong Ionospheric Scintillation JIWON SEO TODD WALTER

  17. Bulk viscosity of gauge theory plasma at strong coupling

    E-Print Network [OSTI]

    Alex Buchel

    2007-09-01T23:59:59.000Z

    We propose a lower bound on bulk viscosity of strongly coupled gauge theory plasmas. Using explicit example of the N=2^* gauge theory plasma we show that the bulk viscosity remains finite at a critical point with a divergent specific heat. We present an estimate for the bulk viscosity of QGP plasma at RHIC.

  18. The Solar Flare: A Strongly Turbulent Particle Accelerator

    E-Print Network [OSTI]

    California at Berkeley, University of

    Chapter 5 The Solar Flare: A Strongly Turbulent Particle Accelerator L. Vlahos, S. Krucker, and P) and particle acceleration during such an event are rarely discussed together in the same article. Many the topic of particle acceleration is often presented as an addi- tional complication to be addressed

  19. Anisotropy of strong pinning in multi-band superconductors

    E-Print Network [OSTI]

    Boyer, Edmond

    pinning in multi-band superconductors 2 1. Introduction The multi-band nature of superconductivity in iron the anisotropy of superconducting parameters in the iron-based superconductors. In particular, Kidzun et al. [23Anisotropy of strong pinning in multi-band superconductors C.J. van der Beek, M. Konczykowski

  20. Strong Second Harmonic Generation from the Tantalum Thioarsenates...

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

    Strong Second Harmonic Generation from the Tantalum Thioarsenates A3Ta2AsS11 (A K and Rb) Home Author: T.K. Bera, J.I. Jang, J.B. Ketterson, M.G. Kanatzidis Year: 2009 Abstract:...

  1. Rapid Communications Strong piezoelectricity in individual GaN nanowires

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    Rapid Communications Strong piezoelectricity in individual GaN nanowires Majid Minary@northwestern.edu (Received 12 July 2011; accepted 15 September 2011) Abstract GaN nanowires are promising building blocks piezoelectricity in individual single-crystal GaN nanowires revealed by direct measurement of the piezoelectric

  2. Exploring the impacts of assets and vulnerabilities of families experiencing multidimensional poverty and income inequality on children's early cognitive, social, emotional and behavioural developmental outcomes in Scotland 

    E-Print Network [OSTI]

    Treanor, Morag

    2013-11-27T23:59:59.000Z

    Living in poverty and persistent low income has detrimental impacts on many facets of the lives of parents and children. During the early years of the new millennium this was of primary concern to the Scottish and UK ...

  3. Education, Income and Ethnic Differences in Cumulative biological Risk Profiles in a National Sample of US Adults: NHANES III (1988-1994)

    E-Print Network [OSTI]

    Seeman, Teresa E.; Stein Merkin, Sharon; Crimmins, Eileen; Koretz, Brandon; Charrette, Sue; Karlamangla, Arun S.

    2006-01-01T23:59:59.000Z

    Groups avg. AL Education Poverty Income Ratio (PIR) GradeSch/PIRPIR=3-3.99 Some HS/PIR=1-1.99 College/PIR=4 HS/

  4. Swap meets, flea markets, and open-air public markets : a community and economic development model for low-income and underserved neighborhoods

    E-Print Network [OSTI]

    Juarez, Jeffrey Edwin

    2011-01-01T23:59:59.000Z

    Swap meets, a type of public marketplace, are sites that provide low income and minority communities a place to buy and sell affordable merchandise, as well as create a regular meeting space. In particular, open-air swap ...

  5. Bringing good things to life : New Markets Tax Credits and the opening of low-income communities to investment, including a case study of Pittsfield, Massachusetts

    E-Print Network [OSTI]

    McGrath, Daniel J., S.M. Massachusetts Institute of Technology

    2008-01-01T23:59:59.000Z

    The New Markets Tax Credit (NMTC) Program is designed to promote investment and economic growth in urban and rural low-income communities across the country. Created in 2000 as one of the last acts of the Clinton Administration, ...

  6. Entangling Atomic Spins with a Strong Rydberg-Dressed Interaction

    E-Print Network [OSTI]

    Jau, Y -Y; Keating, Tyler; Deutsch, I H; Biedermann, G W

    2015-01-01T23:59:59.000Z

    Controlling quantum entanglement between parts of a many-body system is the key to unlocking the power of quantum information processing for applications such as quantum computation, highprecision sensing, and simulation of many-body physics. Spin degrees of freedom of ultracold neutral atoms in their ground electronic state provide a natural platform given their long coherence times and our ability to control them with magneto-optical fields, but creating strong coherent coupling between spins has been challenging. We demonstrate a Rydberg-dressed ground-state blockade that provides a strong tunable interaction energy (~1 MHz in units of Planck's constant) between spins of individually trapped cesium atoms. With this interaction we directly produce Bell-state entanglement between two atoms with a fidelity >= 81(2)%, excluding atom loss events, and >= 60(3)% when loss is included.

  7. Plateau structures in potential scattering in a strong laser field

    SciTech Connect (OSTI)

    Cerkic, A. [Federal Meteorological Institute, Bardakcije 12, 71000 Sarajevo (Bosnia and Herzegowina); Milosevic, D.B. [Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, 71000 Sarajevo (Bosnia and Herzegowina); Max-Born-Institut, Max-Born-Strasse 2a, 12489 Berlin (Germany)

    2004-11-01T23:59:59.000Z

    Electron-atom scattering in a strong laser field is analyzed using the strong-field approximation and modeling elastic scattering of electrons by atoms with a realistic analytical potential derived from an independent-particle model. The results that include both direct scattering and scattering with a repeated scattering (rescattering) are presented. In the latter case, in the intermediate step of the process, the electron can absorb the energy from the laser field and additional plateau structures appear. The features of these plateaus and their cutoffs are analyzed for various incident electron energies and scattering angles, for different laser intensities, and for various atomic gases. The boundaries of these plateaus are compared with classical estimates.

  8. Strong laser fields as a probe for fundamental physics

    E-Print Network [OSTI]

    Holger Gies

    2008-12-03T23:59:59.000Z

    Upcoming high-intensity laser systems will be able to probe the quantum-induced nonlinear regime of electrodynamics. So far unobserved QED phenomena such as the discovery of a nonlinear response of the quantum vacuum to macroscopic electromagnetic fields can become accessible. In addition, such laser systems provide for a flexible tool for investigating fundamental physics. Primary goals consist in verifying so far unobserved QED phenomena. Moreover, strong-field experiments can search for new light but weakly interacting degrees of freedom and are thus complementary to accelerator-driven experiments. I review recent developments in this field, focusing on photon experiments in strong electromagnetic fields. The interaction of particle-physics candidates with photons and external fields can be parameterized by low-energy effective actions and typically predict characteristic optical signatures. I perform first estimates of the accessible new-physics parameter space of high-intensity laser facilities such as POLARIS and ELI.

  9. Evidence for a glassy state in strongly driven carbon

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

    Brown, C. R. D.; Gericke, D. O.; Cammarata, M.; Cho, B. I.; Döppner, T.; Engelhorn, K.; Förster, E.; Fortmann, C.; Fritz, D.; Galtier, E.; et al

    2014-06-09T23:59:59.000Z

    Here, we report results of an experiment creating a transient, highly correlated carbon state using a combination of optical and x-ray lasers. Scattered x-rays reveal a highly ordered state with an electrostatic energy significantly exceeding the thermal energy of the ions. Strong Coulomb forces are predicted to induce nucleation into a crystalline ion structure within a few picoseconds. However, we observe no evidence of such phase transition after several tens of picoseconds but strong indications for an over-correlated fluid state. The experiment suggests a much slower nucleation and points to an intermediate glassy state where the ions are frozen closemore »to their original positions in the fluid.« less

  10. Resurgence and Holomorphy: From Weak to Strong Coupling

    E-Print Network [OSTI]

    Aleksey Cherman; Peter Koroteev; Mithat Ünsal

    2014-12-18T23:59:59.000Z

    We analyze the resurgence properties of finite-dimensional exponential integrals which are prototypes for partition functions in quantum field theories. In these simple examples, we demonstrate that perturbation theory, even at arbitrarily weak coupling, fails as the argument of the coupling constant is varied. It is well-known that perturbation theory also fails at stronger coupling. We show that these two failures are actually intimately related. The formalism of resurgent transseries, which takes into account global analytic continuation properties, fixes both problems, and provides an arbitrarily accurate description of exact result for any value of coupling. This means that strong coupling results can be deduced by using merely weak coupling data. Finally, we give another perspective on resurgence theory by showing that the monodromy properties of the weak coupling results are in precise agreement with the monodromy properties of the strong-coupling expansions, obtained using analysis of the holomorphy structure of Picard-Fuchs equations.

  11. Anisotropy of strong pinning in multi-band superconductors

    SciTech Connect (OSTI)

    van der Beek, C.J.; Konczykowski, M.; Prozorov, Ruslan

    2012-07-17T23:59:59.000Z

    The field-angular dependence and anisotropy of the critical current density in iron-based superconductors is evaluated using a phenomenological approach featuring distinct anisotropy factors for the penetration depth and the coherence length. Both the weak collective pinning limit and the strong pinning limit relevant for iron-based superconductors at low magnetic fields are considered. It is found that in the more anisotropic materials, such as SmFeAsO and NdFeAsO, the field-angular dependence is completely dominated by the coherence length (upper critical field) anisotropy, thereby explaining recent results on the critical current in these materials. In less anisotropic superconductors, strong pinning can lead to an apparent inversion of the anisotropy. Finally, it is shown that, under all circumstances, the ratio of the c-axis and ab-plane critical current densities for the magnetic field along the ab-plane directly yields the coherence length anisotropy factor ??.

  12. Strong plasma screening in thermonuclear reactions: Electron drop model

    E-Print Network [OSTI]

    Kravchuk, P A

    2014-01-01T23:59:59.000Z

    We analyze enhancement of thermonuclear fusion reactions due to strong plasma screening in dense matter using a simple electron drop model. The model assumes fusion in a potential that is screened by an effective electron cloud around colliding nuclei (extended Salpeter ion-sphere model). We calculate the mean field screened Coulomb potentials for atomic nuclei with equal and nonequal charges, appropriate astrophysical S factors, and enhancement factors of reaction rates. As a byproduct, we study analytic behavior of the screening potential at small separations between the reactants. In this model, astrophysical S factors depend not only on nuclear physics but on plasma screening as well. The enhancement factors are in good agreement with calculations by other methods. This allows us to formulate the combined, pure analytic model of strong plasma screening in thermonuclear reactions. The results can be useful for simulating nuclear burning in white dwarfs and neutron stars.

  13. “Hard probes” of strongly-interacting atomic gases

    SciTech Connect (OSTI)

    Nishida, Yusuke [Los Alamos National Laboratory

    2012-06-18T23:59:59.000Z

    We investigate properties of an energetic atom propagating through strongly interacting atomic gases. The operator product expansion is used to systematically compute a quasiparticle energy and its scattering rate both in a spin-1/2 Fermi gas and in a spinless Bose gas. Reasonable agreement with recent quantum Monte Carlo simulations even at a relatively small momentum k/kF > 1.5 indicates that our large-momentum expansions are valid in a wide range of momentum. We also study a differential scattering rate when a probe atom is shot into atomic gases. Because the number density and current density of the target atomic gas contribute to the forward scattering only, its contact density (measure of short-range pair correlation) gives the leading contribution to the backward scattering. Therefore, such an experiment can be used to measure the contact density and thus provides a new local probe of strongly interacting atomic gases.

  14. Wall Adhesion and Constitutive Modelling of Strong Colloidal Gels

    E-Print Network [OSTI]

    Daniel R. Lester; Richard Buscall; Anthony D. Stickland; Peter J. Scales

    2014-06-24T23:59:59.000Z

    Wall adhesion effects during batch sedimentation of strongly flocculated colloidal gels are commonly assumed to be negligible. In this study in-situ measurements of colloidal gel rheology and solids volume fraction distribution suggest the contrary, where significant wall adhesion effects are observed in a 110mm diameter settling column. We develop and validate a mathematical model for the equilibrium stress state in the presence of wall adhesion under both viscoplastic and viscoelastic constitutive models. These formulations highlight fundamental issues regarding the constitutive modeling of colloidal gels, specifically the relative utility and validity of viscoplastic and viscoelastic rheological models under arbitrary tensorial loadings. The developed model is validated against experimental data, which points toward a novel method to estimate the shear and compressive yield strength of strongly flocculated colloidal gels from a series of equilibrium solids volume fraction profiles over various column widths.

  15. Strong reactions in quantum super PDE's. I-II

    E-Print Network [OSTI]

    Agostino Prástaro

    2015-02-01T23:59:59.000Z

    This is a work in three parts, devoted to encode strong reactions of the high energy physics, in the algebraic topologic theory of quantum super PDE's, (previously formulated by A. Pr\\'astaro). In particular strong reactions are characterized by means of boundary value problems in quantum super PDE's. In such a way one obtains representations of quantum nonlinear propagators in quantum super PDE's, by means of elementary ones (quantum handle decompositions of quantum nonlinear propagators). These are useful to encode nuclear and subnuclear reactions in quantum physics. Pr\\'astaro's geometric theory of quantum PDE's allows us to obtain constructive and dynamically justified answers to some important open problems in high energy physics.

  16. Strong plasma screening in thermonuclear reactions: Electron drop model

    E-Print Network [OSTI]

    P. A. Kravchuk; D. G. Yakovlev

    2014-01-11T23:59:59.000Z

    We analyze enhancement of thermonuclear fusion reactions due to strong plasma screening in dense matter using a simple electron drop model. The model assumes fusion in a potential that is screened by an effective electron cloud around colliding nuclei (extended Salpeter ion-sphere model). We calculate the mean field screened Coulomb potentials for atomic nuclei with equal and nonequal charges, appropriate astrophysical S factors, and enhancement factors of reaction rates. As a byproduct, we study analytic behavior of the screening potential at small separations between the reactants. In this model, astrophysical S factors depend not only on nuclear physics but on plasma screening as well. The enhancement factors are in good agreement with calculations by other methods. This allows us to formulate the combined, pure analytic model of strong plasma screening in thermonuclear reactions. The results can be useful for simulating nuclear burning in white dwarfs and neutron stars.

  17. A Hybrid Strong/Weak Coupling Approach to Jet Quenching

    E-Print Network [OSTI]

    Jorge Casalderrey-Solana; Doga Can Gulhan; José Guilherme Milhano; Daniel Pablos; Krishna Rajagopal

    2014-06-26T23:59:59.000Z

    We propose and explore a new hybrid approach to jet quenching in a strongly coupled medium. The basis of this phenomenological approach is to treat physics processes at different energy scales differently. The high-$Q^2$ processes associated with the QCD evolution of the jet from production as a single hard parton through its fragmentation, up to but not including hadronization, are treated perturbatively. The interactions between the partons in the shower and the deconfined matter within which they find themselves lead to energy loss. The momentum scales associated with the medium (of the order of the temperature) and with typical interactions between partons in the shower and the medium are sufficiently soft that strongly coupled physics plays an important role in energy loss. We model these interactions using qualitative insights from holographic calculations of the energy loss of energetic light quarks and gluons in a strongly coupled plasma, obtained via gauge/gravity duality. We embed this hybrid model into a hydrodynamic description of the spacetime evolution of the hot QCD matter produced in heavy ion collisions and confront its predictions with jet data from the LHC. The holographic expression for the energy loss of a light quark or gluon that we incorporate in our hybrid model is parametrized by a stopping distance. We find very good agreement with all the data as long as we choose a stopping distance that is comparable to but somewhat longer than that in ${\\cal N}=4$ supersymmetric Yang-Mills theory. For comparison, we also construct alternative models in which energy loss occurs as it would if the plasma were weakly coupled. We close with suggestions of observables that could provide more incisive evidence for, or against, the importance of strongly coupled physics in jet quenching.

  18. A Bayesian approach to strong lensing modelling of galaxy clusters

    E-Print Network [OSTI]

    Eric Jullo; Jean-Paul Kneib; Marceau Limousin; Árdis Elíasdóttir; Phil Marshall; Tomas Verdugo

    2007-12-26T23:59:59.000Z

    In this paper, we describe a procedure for modelling strong lensing galaxy clusters with parametric methods, and to rank models quantitatively using the Bayesian evidence. We use a publicly available Markov chain Monte-Carlo (MCMC) sampler ('Bayesys'), allowing us to avoid local minima in the likelihood functions. To illustrate the power of the MCMC technique, we simulate three clusters of galaxies, each composed of a cluster-scale halo and a set of perturbing galaxy-scale subhalos. We ray-trace three light beams through each model to produce a catalogue of multiple images, and then use the MCMC sampler to recover the model parameters in the three different lensing configurations. We find that, for typical Hubble Space Telescope (HST)-quality imaging data, the total mass in the Einstein radius is recovered with ~1-5% error according to the considered lensing configuration. However, we find that the mass of the galaxies is strongly degenerated with the cluster mass when no multiple images appear in the cluster centre. The mass of the galaxies is generally recovered with a 20% error, largely due to the poorly constrained cut-off radius. Finally, we describe how to rank models quantitatively using the Bayesian evidence. We confirm the ability of strong lensing to constrain the mass profile in the central region of galaxy clusters in this way. Ultimately, such a method applied to strong lensing clusters with a very large number of multiple images may provide unique geometrical constraints on cosmology. The implementation of the MCMC sampler used in this paper has been done within the framework of the Lenstool software package, which is publicly available.

  19. Ultrafast control of strong-field electron dynamics in solids

    E-Print Network [OSTI]

    Vladislav S. Yakovlev; Stanislav Yu. Kruchinin; Tim Paasch-Colberg; Mark I. Stockman; Ferenc Krausz

    2015-02-17T23:59:59.000Z

    We review theoretical foundations and some recent progress related to the quest of controlling the motion of charge carriers with intense laser pulses and optical waveforms. The tools and techniques of attosecond science enable detailed investigations of a relatively unexplored regime of nondestructive strong-field effects. Such extremely nonlinear effects may be utilized to steer electron motion with precisely controlled optical fields and switch electric currents at a rate that is far beyond the capabilities of conventional electronics.

  20. Strongly localized excitons in gallium nitride C. Wetzel,a)

    E-Print Network [OSTI]

    Wetzel, Christian M.

    report on strong excitonic luminescence in wurtzite GaN at 3.309 and 3.365 eV T 6 K . These lines lie and characterization of excitonic luminescence transitions in wurtzite GaN about 150 meV below the fundamental elec transitions at 3.309 and 3.365 eV. Wurtzite GaN epilayers were grown by a high tempera- ture vapor phase

  1. Weak and strong chaos in FPU models and beyond

    E-Print Network [OSTI]

    Marco Pettini; Lapo Casetti; Monica Cerruti-Sola; Roberto Franzosi; E. G. D. Cohen

    2004-10-12T23:59:59.000Z

    We briefly review some of the most relevant results that our group obtained in the past, while investigating the dynamics of the Fermi-Pasta-Ulam (FPU) models. A first result is the numerical evidence of the existence of two different kinds of transitions in the dynamics of the FPU models: i) a Stochasticity Threshold (ST), characterized by a value of the energy per degree of freedom below which the overwhelming majority of the phase space trajectories are regular (vanishing Lyapunov exponents). It tends to vanish as the number N of degrees of freedom is increased. ii) a Strong Stochasticity Threshold (SST), characterized by a value of the energy per degree of freedom at which a crossover appears between two different power laws of the energy dependence of the largest Lyapunov exponent, which phenomenologically corresponds to the transition between weakly and strongly chaotic regimes. It is stable with N. A second result is the development of a Riemannian geometric theory to explain the origin of Hamiltonian chaos. The starting of this theory has been motivated by the inadequacy of the approach based on homoclinic intersections to explain the origin of chaos in systems of arbitrarily large N, or arbitrarily far from quasi-integrability, or displaying a transition between weak and strong chaos. Finally, a third result stems from the search for the transition between weak and strong chaos in systems other than FPU. Actually, we found that a very sharp SST appears as the dynamical counterpart of a thermodynamic phase transition, which in turn has led, in the light of the Riemannian theory of chaos, to the development of a topological theory of phase transitions.

  2. Experimental determination of the effective strong coupling constant

    SciTech Connect (OSTI)

    Alexandre Deur; Volker Burkert; Jian-Ping Chen; Wolfgang Korsch

    2005-09-15T23:59:59.000Z

    We extract an effective strong coupling constant from low Q2 data on the Bjorken sum. Using sum rules, we establish its Q2-behavior over the complete Q2-range. The result is compared to effective coupling constants extracted from different processes and to calculations based on Schwinger-Dyson equations, hadron spectroscopy or lattice QCD. Although the connection between the experimentally extracted effective coupling constant and the calculations is not clear, the results agree surprisingly well.

  3. Calculating the running coupling in strong electroweak models

    E-Print Network [OSTI]

    Zoltan Fodor; Kieran Holland; Julius Kuti; Daniel Nogradi; Chris Schroeder

    2009-11-16T23:59:59.000Z

    One possibility for Beyond Standard Model physics is a new strongly-interacting gauge theory. One way to determine if a non-abelian gauge theory is QCD-like or conformal is to measure the running of the renormalized gauge coupling. We define the renormalized coupling from Wilson loop ratios, and measure these ratios via lattice simulations. We test this method in SU(3) pure gauge theory and show some first results for simulations with dynamical fermions in the fundamental representation.

  4. Conjugacy of Strongly Continuous Generated by Normal Operators

    E-Print Network [OSTI]

    Rosa, Ricardo M. S.

    of conjugacy. We say that two strongly con- tinuous semigroups {etA }t0 and {etB }t0 in a Banach space X are conjugate if there exists a homeomorphism h : X X such that h(etA x) = etB h(x), for every t 0 and x X to {etB }t0 through h. It is easy to see that if the semigroups above are conjugate and one of them

  5. Color superconductivity in a strong external magnetic field

    E-Print Network [OSTI]

    Cristina Manuel

    2006-07-26T23:59:59.000Z

    We explore the effects of an applied strong external magnetic field in a three flavor massless color superconductor. The long-range component of the B field that penetrates the superconductor enhances some quark condensates, leading to a different condensation pattern. The external field also reduces the flavor symmetries in the system, and thus it changes drastically the corresponding low energy physics. Our considerations are relevant for the study of highly magnetized compact stars.

  6. Exact propagating nonlinear singular disturbances in strongly coupled dusty plasmas

    SciTech Connect (OSTI)

    Das, Amita; Tiwari, Sanat Kumar; Kaw, Predhiman; Sen, Abhijit [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

    2014-08-15T23:59:59.000Z

    The dynamical response of the strongly coupled dusty plasma medium has recently been described by utilizing the Generalized Hydrodynamic (GHD) model equations. The GHD equations capture the visco-elastic properties of the medium and have been successful in predicting a host of phenomena (e.g., existence of novel transverse shear waves in the fluid medium, modification of longitudinal wave dispersion by elastic effects, etc.) which have found experimental confirmation. In this paper, the nonlinear longitudinal response of the medium governed by GHD equations in strong coupling limit is discussed analytically. The structure of the equations rules out the balance between dispersion and nonlinearity, thereby, forbidding soliton formation. However, a host of new varieties of nonlinear solutions are found to exist, which have singular spatial profiles and yet have conservative properties. For instance, existence of novel conservative shock structures with zero strength is demonstrated, waves whose breaking produces no dissipation in the medium are observed, propagating solutions which produce cusp like singularities can exist and so on. It is suggested that simulations and experiments should look for these novel nonlinear structures in the large amplitude strong coupling limit of longitudinal disturbances in dusty plasmas.

  7. Coherent excitation of a strongly coupled quantum dot - cavity system

    E-Print Network [OSTI]

    Dirk Englund; Arka Majumdar; Andrei Faraon; Mitsuru Toishi; Nick Stoltz; Pierre Petroff; Jelena Vuckovic

    2009-02-19T23:59:59.000Z

    We have studied the coherent excitation of a strongly coupled QD/photonic crystal cavity system. Time-resolved reflectivity measurements show the vacuum Rabi oscillation of the dot in the cavity. Next, we considered the resonant driving of a cavity-detuned dot, which efficiently populates the cavity mode. This cavity-controlled read-out channel allows high-resolution single quantum dot spectroscopy. Autocorrelation measurements on the cavity mode show antibunching and suggest the use of the resonantly driven QD/cavity system as an on-demand source of single photons with potentially near-unity indistinguishability.

  8. Entanglement generation in the ultra-strongly coupled Rabi model

    E-Print Network [OSTI]

    Matteo Bina; Stefano Maffezzoli Felis; Stefano Olivares

    2014-10-23T23:59:59.000Z

    We analyze the dynamics of the quantum Rabi model for two qubits interacting through a common bosonic field mode (resonator), focusing on the generation and detection of maximally entangled Bell states. We obtain analytical results for the unitary dynamics of this system in the slow-qubit (or degenerate) regime, considering ultra-strong coupling between qubits and resonator mode, for which the rotating wave approximation is no longer applicable. We also numerically investigate the dynamics beyond the slow-qubit condition in order to study the validity of the model in the presence of less strict conditions.

  9. A Vacuum Accumulation Solution to the Strong CP Problem

    E-Print Network [OSTI]

    Gia Dvali

    2005-10-06T23:59:59.000Z

    We suggest a solution to the strong CP problem in which there are no axions involved. The superselection rule of the \\theta-vacua is dynamically lifted in such a way that an infinite number of vacua are accumulated within the phenomenologically acceptable range of \\theta < 10^{-9}, whereas only a measure-zero set of vacua remains outside of this interval. The general prediction is the existence of membranes to which the standard model gauge fields are coupled. These branes may be light enough for being produced at the particle accelerators in form of the resonances with a characteristic membrane spectrum.

  10. Parton picture for the strongly coupled SYM plasma

    E-Print Network [OSTI]

    E. Iancu

    2008-05-27T23:59:59.000Z

    Deep inelastic scattering off the strongly coupled N=4 supersymmetric Yang-Mills plasma at finite temperature can be computed within the AdS/CFT correspondence, with results which are suggestive of a parton picture for the plasma. Via successive branchings, essentially all partons cascade down to very small values of the longitudinal momentum fraction x and to transverse momenta smaller than the saturation momentum Q_s\\sim T/x. This scale Q_s controls the plasma interactions with a hard probe, in particular, the jet energy loss and its transverse momentum broadening.

  11. Charmonium in strongly coupled quark-gluon plasma

    E-Print Network [OSTI]

    Clint Young; Edward Shuryak

    2008-09-22T23:59:59.000Z

    The growing consensus that a strongly-coupled quark-gluon plasma (sQGP) has been observed at the SPS and RHIC experiments suggests a different framework for examining heavy quark dynamics. We present both semi-analytical treatment of Fokker-Planck (FP) evolution in pedagogical examples and numerical Langevin simulations of evolving charm quark-antiquark pairs on top of a hydrodynamically expanding fireball. In this way, we may conclude that the survival probability of bound charmonia states is greater than previously estimated, as the spatial equilibration of pairs proceeds through a ``slowly dissolving lump'' stage related to the pair interaction.

  12. Surface Emission Properties of Strongly Magnetic Neutron Stars

    E-Print Network [OSTI]

    Feryal Ozel

    2001-09-18T23:59:59.000Z

    We construct radiative equilibrium models for strongly magnetized (B > 10^13 G) neutron-star atmospheres taking into account magnetic free-free absorption and scattering processes computed for two polarization modes. We include the effects of vacuum polarization in our calculations. We present temperature profiles and the angle-, photon energy-, and polarization-dependent emerging intensity for a range of magnetic field strengths and effective temperatures of the atmospheres. We find that for B neutron star surface, and find that T_c/T_eff ranges between 1.1-1.8. We discuss the implications of our results for various thermally emitting neutron star models.

  13. Thermodynamics of strong-interaction matter from Lattice QCD

    E-Print Network [OSTI]

    Heng-Tong Ding; Frithjof Karsch; Swagato Mukherjee

    2015-04-21T23:59:59.000Z

    We review results from lattice QCD calculations on the thermodynamics of strong-interaction matter with emphasis on input these calculations can provide to the exploration of the phase diagram and properties of hot and dense matter created in heavy ion experiments. This review is organized as follows: 1) Introduction, 2) QCD thermodynamics on the lattice, 3) QCD phase diagram at high temperature, 4) Bulk thermodynamics, 5) Fluctuations of conserved charges, 6) Transport properties, 7) Open heavy flavors and heavy quarkonia, 8) QCD in external magnetic fields, 9) Summary.

  14. Thermodynamics of strong-interaction matter from Lattice QCD

    E-Print Network [OSTI]

    Ding, Heng-Tong; Mukherjee, Swagato

    2015-01-01T23:59:59.000Z

    We review results from lattice QCD calculations on the thermodynamics of strong-interaction matter with emphasis on input these calculations can provide to the exploration of the phase diagram and properties of hot and dense matter created in heavy ion experiments. This review is organized as follows: 1) Introduction, 2) QCD thermodynamics on the lattice, 3) QCD phase diagram at high temperature, 4) Bulk thermodynamics, 5) Fluctuations of conserved charges, 6) Transport properties, 7) Open heavy flavors and heavy quarkonia, 8) QCD in external magnetic fields, 9) Summary.

  15. Experimental determination of the effective strong coupling constant

    SciTech Connect (OSTI)

    Alexandre Deur; Volker Burkert; Jian-Ping Chen; Wolfgang Korsch

    2007-07-01T23:59:59.000Z

    We extract an effective strong coupling constant from low Q{sup 2} data on the Bjorken sum. Using sum rules, we establish its Q{sup 2}-behavior over the complete Q{sup 2}-range. The result is compared to effective coupling constants extracted from different processes and to calculations based on Schwinger-Dyson equations, hadron spectroscopy or lattice QCD. Although the connection between the experimentally extracted effective coupling constant and the calculations is not clear, the results agree surprisingly well.

  16. Bulk viscosity of strongly coupled plasmas with holographic duals

    E-Print Network [OSTI]

    Steven S. Gubser; Silviu S. Pufu; Fabio D. Rocha

    2008-06-02T23:59:59.000Z

    We explain a method for computing the bulk viscosity of strongly coupled thermal plasmas dual to supergravity backgrounds supported by one scalar field. Whereas earlier investigations required the computation of the leading dissipative term in the dispersion relation for sound waves, our method requires only the leading frequency dependence of an appropriate Green's function in the low-frequency limit. With a scalar potential chosen to mimic the equation of state of QCD, we observe a slight violation of the lower bound on the ratio of the bulk and shear viscosities conjectured in arXiv:0708.3459.

  17. Lamb shift enhancement and detection in strongly driven superconducting circuits

    E-Print Network [OSTI]

    Vera Gramich; Simone Gasparinetti; Paolo Solinas; Joachim Ankerhold

    2014-05-06T23:59:59.000Z

    It is shown that strong driving of a quantum system substantially enhances the Lamb shift induced by broadband reservoirs which are typical for solid-state devices. By varying drive parameters the impact of environmental vacuum fluctuations with continuous spectral distribution onto system observables can be tuned in a distinctive way. This provides experimentally feasible measurement schemes for the Lamb shift in superconducting circuits based on Cooper pair boxes, where it can be detected either in shifted dressed transition frequencies or in pumped charge currents.

  18. Positive Lyapunov exponents and localization bounds for strongly mixing potentials

    E-Print Network [OSTI]

    Christian Sadel; Hermann Schulz-Baldes

    2007-02-15T23:59:59.000Z

    For a one-dimensional discrete Schr\\"odinger operator with a weakly coupled potential given by a strongly mixing dynamical system with power law decay of correlations, we derive for all energies including the band edges and the band center a perturbative formula for the Lyapunov exponent. Under adequate hypothesis, this shows that the Lyapunov exponent is positive on the whole spectrum. This in turn implies that the Hausdorff dimension of the spectral measure is zero and that the associated quantum dynamics grows at most logarithmically in time.

  19. Strong partnerships with our northern New Mexico neighbors

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary900SteepStrengthening northern New Mexico'sStrong

  20. Siderite zonation within the Brent Group: microbial influence or aquifer flow?

    E-Print Network [OSTI]

    Haszeldine, Stuart

    isotopic data (n = 32) to determine which of these two controls (i.e. biochemistry or pore-water flowSiderite zonation within the Brent Group: microbial influence or aquifer flow? M. WILKINSON1 , *, R versa. There is a strong facies control upon siderite formation, with ripple cross-laminated sands being

  1. Estimation of methane flux offshore SW Taiwan and the influence of tectonics on gas hydrate accumulation

    E-Print Network [OSTI]

    Lin, Andrew Tien-Shun

    Estimation of methane flux offshore SW Taiwan and the influence of tectonics on gas hydrate simulating reflectors (BSRs) imply the potential existence of gas hydrates offshore southwestern Taiwan settings in offshore SW Taiwan might strongly control the stability of gas hydrates, and thus affect

  2. DEVELOPING FLOW AND HEAT TRANSFER IN STRONGLY CURVED DUCTS OF RECTANGULAR CROSS-SECTION

    E-Print Network [OSTI]

    Yee, G.

    2010-01-01T23:59:59.000Z

    DEVELOpiNG FLOW AND HEAT TRANSFER IN STRONGLY CURVED DUCTS9092 Developing Flow and Heat Transfer in Strongly CurvedForced Convection Heat Transfer in Curved Rectangular

  3. Nepal's Crisis: Mobilising International Influence

    E-Print Network [OSTI]

    International Crisis Group

    2006-04-19T23:59:59.000Z

    Policy Briefing Asia Briefing N°49 Kathmandu/Brussels, 19 April 2006 Nepal’s Crisis: Mobilising International Influence I. OVERVIEW Pro-democracy demonstrations and a general strike across Nepal in recent weeks mark a decisive shift... institutions) to form a common front on strategy and tactics to maximise international influence in assisting Nepal’s escape from its worsening conflict. The conflict remains soluble and a genuine democratic mass movement increases the chances of a...

  4. Kolmogorov flow in two dimensional strongly coupled dusty plasma

    SciTech Connect (OSTI)

    Gupta, Akanksha; Ganesh, R., E-mail: ganesh@ipr.res.in; Joy, Ashwin [Institute for Plasma Research, Bhat Gandhinagar, Gujarat 382 428 (India)

    2014-07-15T23:59:59.000Z

    Undriven, incompressible Kolmogorov flow in two dimensional doubly periodic strongly coupled dusty plasma is modelled using generalised hydrodynamics, both in linear and nonlinear regime. A complete stability diagram is obtained for low Reynolds numbers R and for a range of viscoelastic relaxation time ?{sub m} [0?strongly reduced for increasing values of ?{sub m}. A critical ?{sub m}{sup c} is found above which Kolmogorov flow is unconditionally unstable and becomes independent of Reynolds number. For R?

  5. Nonlinear neutrino-photon interactions inside strong laser pulses

    E-Print Network [OSTI]

    Meuren, Sebastian; Di Piazza, Antonino

    2015-01-01T23:59:59.000Z

    Even though neutrinos are neutral particles and interact only via the exchange of weak gauge bosons, charged leptons and quarks can mediate a coupling to the photon field beyond tree level. Inside a relativistically strong laser field nonlinear effects in the laser amplitude can play an important role, as electrons and positrons interact nonperturbatively with the coherent part of the photon field. Here, we calculate for the first time the leading-order contribution to the axial-vector--vector current-coupling tensor inside an arbitrary plane-wave laser field (which is taken into account exactly by employing the Furry picture). The current-coupling tensor appears in the calculation of various electroweak processes inside strong laser fields like photon emission or trident electron-positron pair production by a neutrino. Moreover, as we will see below, the axial-vector--vector current-coupling tensor contains the Adler-Bell-Jackiw (ABJ) anomaly. This occurrence renders the current-coupling tensor also interest...

  6. Nonlinear neutrino-photon interactions inside strong laser pulses

    E-Print Network [OSTI]

    Sebastian Meuren; Christoph H. Keitel; Antonino Di Piazza

    2015-04-10T23:59:59.000Z

    Even though neutrinos are neutral particles and interact only via the exchange of weak gauge bosons, charged leptons and quarks can mediate a coupling to the photon field beyond tree level. Inside a relativistically strong laser field nonlinear effects in the laser amplitude can play an important role, as electrons and positrons interact nonperturbatively with the coherent part of the photon field. Here, we calculate for the first time the leading-order contribution to the axial-vector--vector current-coupling tensor inside an arbitrary plane-wave laser field (which is taken into account exactly by employing the Furry picture). The current-coupling tensor appears in the calculation of various electroweak processes inside strong laser fields like photon emission or trident electron-positron pair production by a neutrino. Moreover, as we will see below, the axial-vector--vector current-coupling tensor contains the Adler-Bell-Jackiw (ABJ) anomaly. This occurrence renders the current-coupling tensor also interesting from a fundamental point of view, as it is the simplest Feynman diagram in an external field featuring this kind of anomaly.

  7. A scenario for inflationary magnetogenesis without strong coupling problem

    E-Print Network [OSTI]

    Gianmassimo Tasinato

    2015-03-03T23:59:59.000Z

    Cosmological magnetic fields pervade the entire universe, from small to large scales. Since they apparently extend into the intergalactic medium, it is tantalizing to believe that they have a primordial origin, possibly being produced during inflation. However, finding consistent scenarios for inflationary magnetogenesis is a challenging theoretical problem. The requirements to avoid an excessive production of electromagnetic energy, and to avoid entering a strong coupling regime characterized by large values for the electromagnetic coupling constant, typically allow one to generate only a tiny amplitude of magnetic field during inflation. We propose a scenario for building gauge-invariant models of inflationary magnetogenesis potentially free from these issues. The idea is to derivatively couple a dynamical scalar, not necessarily the inflaton, to fermionic and electromagnetic fields during the inflationary era. Such couplings give additional freedom to control the time-dependence of the electromagnetic coupling constant during inflation. This fact allows us to find conditions to avoid the strong coupling problems that affect many of the existing models of magnetogenesis. We do not need to rely on a particular inflationary set-up for developing our scenario, that might be applied to different realizations of inflation. On the other hand, specific requirements have to be imposed on the dynamics of the scalar derivatively coupled to fermions and electromagnetism, that we are able to satisfy in an explicit realization of our proposal.

  8. Effect of strongly coupled plasma on photoionization cross section

    SciTech Connect (OSTI)

    Das, Madhusmita, E-mail: msdas@barc.gov.in [Department of Physics, Indian Institute of Technology, Powai, Mumbai 400076, India and Theoretical Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India)] [Department of Physics, Indian Institute of Technology, Powai, Mumbai 400076, India and Theoretical Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India)

    2014-01-15T23:59:59.000Z

    The effect of strongly coupled plasma on the ground state photoionization cross section is studied. In the non relativistic dipole approximation, cross section is evaluated from bound-free transition matrix element. The bound and free state wave functions are obtained by solving the radial Schrodinger equation with appropriate plasma potential. We have used ion sphere potential (ISP) to incorporate the plasma effects in atomic structure calculation. This potential includes the effect of static plasma screening on nuclear charge as well as the effect of confinement due to the neighbouring ions. With ISP, the radial equation is solved using Shooting method approach for hydrogen like ions (Li{sup +2}, C{sup +5}, Al{sup +12}) and lithium like ions (C{sup +3}, O{sup +5}). The effect of strong screening and confinement is manifested as confinement resonances near the ionization threshold for both kinds of ions. The confinement resonances are very much dependent on the edge of the confining potential and die out as the plasma density is increased. Plasma effect also results in appearance of Cooper minimum in lithium like ions, which was not present in case of free lithium like ions. With increasing density the position of Cooper minimum shifts towards higher photoelectron energy. The same behaviour is also true for weakly coupled plasma where plasma effect is modelled by Debye-Huckel potential.

  9. Testing gravity on kiloparsec scales with strong gravitational lenses

    E-Print Network [OSTI]

    Tristan L. Smith

    2010-04-12T23:59:59.000Z

    Modifications to GR generically predict time and scale-dependent effects which may be probed by observations of strong lensing by galaxies. Measurements of the stellar velocity dispersion determine the dynamical mass whereas measurements of the Einstein radius determine the lensing mass. In GR these two masses are equal; in alternative gravity theories they may not be. Using measurements of the stellar velocity dispersion and strong lensing around galaxies from the Sloan Lens ACS (SLACS) survey we place constraints on lensing in modified gravity theories and extend previous studies by applying this data to explore its dependence on various properties of the lens such as the lens redshift or mass and thereby constrain scalar-tensor, f(R) gravity theories, and generic parameterizations of deviations from GR. Besides applying the observations to these specific gravity theories, the data places a constraint on a generic dependence of modifications to GR on the lens mass and redshift. At the 68% confidence level we find that the ratio between the lensing and dynamical masses can only vary by less then 50% over a mass range for the lens galaxies of 1E12 < M/Msun < 1E14 and less than 40% over the redshift range 0.06 < z < 0.36.

  10. The mass and radii of strongly magnetized neutron stars

    E-Print Network [OSTI]

    Kamiab, Farbod; Afshordi, Niayesh

    2015-01-01T23:59:59.000Z

    It has been clear for some time now that super-critical surface magnetic fields, exceeding 4 x 10^13 G, exist on a subset of neutron stars. These magnetars may harbor interior fields many orders of magnitude larger, potentially reaching equipartition values. However, the impact of these strong fields on stellar structure has been largely ignored, potentially complicating attempts to infer the high density nuclear equation of state. Here we assess the effect of these strong magnetic fields on the mass-radius relationship of neutron stars. We employ an effective field theory model for the nuclear equation of state that includes the impact of hyperons, anomalous magnetic moments, and the physics of the crust. We consider two magnetic field geometries, bounding the likely magnitude of the impact of magnetic fields: a statistically isotropic, tangled field and a force-free configuration. In both cases even equipartition fields have at most a 30% impact on the maximum mass. However, the direction of the effect of t...

  11. The mass and radii of strongly magnetized neutron stars

    E-Print Network [OSTI]

    Farbod Kamiab; Avery E. Broderick; Niayesh Afshordi

    2015-03-12T23:59:59.000Z

    It has been clear for some time now that super-critical surface magnetic fields, exceeding 4 x 10^13 G, exist on a subset of neutron stars. These magnetars may harbor interior fields many orders of magnitude larger, potentially reaching equipartition values. However, the impact of these strong fields on stellar structure has been largely ignored, potentially complicating attempts to infer the high density nuclear equation of state. Here we assess the effect of these strong magnetic fields on the mass-radius relationship of neutron stars. We employ an effective field theory model for the nuclear equation of state that includes the impact of hyperons, anomalous magnetic moments, and the physics of the crust. We consider two magnetic field geometries, bounding the likely magnitude of the impact of magnetic fields: a statistically isotropic, tangled field and a force-free configuration. In both cases even equipartition fields have at most a 30% impact on the maximum mass. However, the direction of the effect of the magnetic field depends on the geometry employed - force-free fields leading to reductions in the maximum neutron star mass and radius while tangled fields increase both - challenging the common intuition in the literature on the impact of magnetic fields.

  12. Strong Integer Additive Set-valued Graphs: A Creative Review

    E-Print Network [OSTI]

    N. K. Sudev; K. A. Germina; K. P. Chithra

    2015-04-23T23:59:59.000Z

    For a non-empty ground set $X$, finite or infinite, the {\\em set-valuation} or {\\em set-labeling} of a given graph $G$ is an injective function $f:V(G) \\to \\mathcal{P}(X)$, where $\\mathcal{P}(X)$ is the power set of the set $X$. A set-indexer of a graph $G$ is an injective set-valued function $f:V(G) \\to \\mathcal{P}(X)$ such that the function $f^{\\ast}:E(G)\\to \\mathcal{P}(X)-\\{\\emptyset\\}$ defined by $f^{\\ast}(uv) = f(u){\\ast} f(v)$ for every $uv{\\in} E(G)$ is also injective., where $\\ast$ is a binary operation on sets. An integer additive set-indexer is defined as an injective function $f:V(G)\\to \\mathcal{P}({\\mathbb{N}_0})$ such that the induced function $g_f:E(G) \\to \\mathcal{P}(\\mathbb{N}_0)$ defined by $g_f (uv) = f(u)+ f(v)$ is also injective, where $\\mathbb{N}_0$ is the set of all non-negative integers and $\\mathcal{P}(\\mathbb{N}_0)$ is its power set. An IASI $f$ is said to be a strong IASI if $|f^+(uv)|=|f(u)|\\,|f(v)|$ for every pair of adjacent vertices $u,v$ in $G$. In this paper, we critically and creatively review the concepts and properties of strong integer additive set-valued graphs.

  13. Higgs boson coupling to a new strongly interacting sector

    E-Print Network [OSTI]

    Hernández, A E Cárcamo; Zerwekh, Alfonso R

    2015-01-01T23:59:59.000Z

    In the framework of strongly interacting dynamics for electroweak symmetry breaking, heavy composite particles may arise and cause observable effects, as they should couple strongly to the resulting Higgs boson and affect the signals that appear at one loop level. Here we study this expected behavior, contrasting it with current experimental knowledge. We work in a simple and generic scenario where the lowest lying composite states are the Higgs scalar doublet and a massive vector triplet. We use an effective chiral Lagrangian to describe the theory below the compositeness scale $\\Lambda$, assumed to be $4\\pi v \\simeq~3$ TeV. The effective theory contains the Standard Model spectrum and the extra composites. We determine the constraints on this scenario imposed by our current knowledge of the $Zb\\bar{b}$ vertex, the $T$ and $S$ oblique parameters, and the recently measured Higgs mass and its diphoton decay rate. We found that the $T$ and $S$ parameters as well as the Higgs diphoton decay do not provide import...

  14. On refractive processes in strong laser field quantum electrodynamics

    E-Print Network [OSTI]

    A. Di Piazza

    2015-04-05T23:59:59.000Z

    Refractive processes in strong-field QED are pure quantum processes, which involve only external photons and the background electromagnetic field. We show analytically that such processes occurring in a plane-wave field and involving external real photons are all characterized by a surprisingly modest net exchange of energy and momentum with the laser field, corresponding to a few laser photons, even in the limit of ultra-relativistic laser intensities. We obtain this result by a direct calculation of the transition matrix element of an arbitrary refractive QED process and accounting exactly for the background plane-wave field. A simple physical explanation of this modest net exchange of laser photons is provided, based on the fact that the laser field couples with the external photons only indirectly through virtual electron-positron pairs. For stronger and stronger laser fields, the pairs cover a shorter and shorter distance before they annihilate again, such that the laser can transfer to them an energy corresponding to only a few photons. These results can be relevant for future experiments aiming to test strong-field QED at present and next-generation facilities.

  15. Executive Summary Harrison County posted job, population, and per capita personal income gains during the past five

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    -2007, at 0.1 percent, which equaled the state rate but fell far below the national average. In addition. Harrison County showed strong job growth in manufacturing (2.7 percent per year) during the past five years. The aerospace sector contributed significantly to manufacturing job gains during the period. Also posting strong

  16. TYPE Ia SUPERNOVAE STRONGLY INTERACTING WITH THEIR CIRCUMSTELLAR MEDIUM

    SciTech Connect (OSTI)

    Silverman, Jeffrey M. [Department of Astronomy, University of Texas, Austin, TX 78712-0259 (United States); Nugent, Peter E. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Gal-Yam, Avishay; Arcavi, Iair; Ben-Ami, Sagi [Benoziyo Center for Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel); Sullivan, Mark [School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom); Howell, D. Andrew; Graham, Melissa L. [Las Cumbres Observatory Global Telescope Network, Goleta, CA 93117 (United States); Filippenko, Alexei V.; Bloom, Joshua S.; Cenko, S. Bradley; Clubb, Kelsey I. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Cao, Yi; Horesh, Assaf; Kulkarni, Shrinivas R. [Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125 (United States); Chornock, Ryan; Foley, Ryan J. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Coil, Alison L. [Department of Physics, University of California, San Diego, La Jolla, CA 92093 (United States); Griffith, Christopher V. [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States); Kasliwal, Mansi M., E-mail: jsilverman@astro.as.utexas.edu [Observatories of the Carnegie Institution of Science, Pasadena, CA 91101 (United States); and others

    2013-07-01T23:59:59.000Z

    Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe Ia) are perhaps the best-studied class of SNe, yet the progenitor systems of these explosions largely remain a mystery. A rare subclass of SNe Ia shows evidence of strong interaction with their circumstellar medium (CSM), and in particular, a hydrogen-rich CSM; we refer to them as SNe Ia-CSM. In the first systematic search for such systems, we have identified 16 SNe Ia-CSM, and here we present new spectra of 13 of them. Six SNe Ia-CSM have been well studied previously, three were previously known but are analyzed in depth for the first time here, and seven are new discoveries from the Palomar Transient Factory. The spectra of all SNe Ia-CSM are dominated by H{alpha} emission (with widths of {approx}2000 km s{sup -1}) and exhibit large H{alpha}/H{beta} intensity ratios (perhaps due to collisional excitation of hydrogen via the SN ejecta overtaking slower-moving CSM shells); moreover, they have an almost complete lack of He I emission. They also show possible evidence of dust formation through a decrease in the red wing of H{alpha} 75-100 days past maximum brightness, and nearly all SNe Ia-CSM exhibit strong Na I D absorption from the host galaxy. The absolute magnitudes (uncorrected for host-galaxy extinction) of SNe Ia-CSM are found to be -21.3 mag {<=} M{sub R} {<=} -19 mag, and they also seem to show ultraviolet emission at early times and strong infrared emission at late times (but no detected radio or X-ray emission). Finally, the host galaxies of SNe Ia-CSM are all late-type spirals similar to the Milky Way, or dwarf irregulars like the Large Magellanic Cloud, which implies that these objects come from a relatively young stellar population. This work represents the most detailed analysis of the SN Ia-CSM class to date.

  17. Strong exciton-photon coupling in open semiconductor microcavities

    SciTech Connect (OSTI)

    Dufferwiel, S.; Fras, F.; Walker, P. M.; Li, F.; Giriunas, L.; Makhonin, M. N.; Wilson, L. R.; Skolnick, M. S.; Krizhanovskii, D. N. [Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH (United Kingdom); Trichet, A.; Smith, J. M. [Department of Materials, University of Oxford, Oxford OX1 3PH (United Kingdom); Clarke, E. [EPSRC National Centre for III-V Technologies, University of Sheffield, Sheffield S1 3JD (United Kingdom)

    2014-05-12T23:59:59.000Z

    We present a method to implement 3-dimensional polariton confinement with in-situ spectral tuning of the cavity mode. Our tunable microcavity is a hybrid system consisting of a bottom semiconductor distributed Bragg reflector (DBR) with a cavity containing quantum wells (QWs) grown on top and a dielectric concave DBR separated by a micrometer sized gap. Nanopositioners allow independent positioning of the two mirrors and the cavity mode energy can be tuned by controlling the distance between them. When close to resonance, we observe a characteristic anticrossing between the cavity modes and the QW exciton demonstrating strong coupling. For the smallest radii of curvature concave mirrors of 5.6??m and 7.5??m, real-space polariton imaging reveals submicron polariton confinement due to the hemispherical cavity geometry.

  18. Weak and strong wave turbulence spectra for elastic thin plate

    E-Print Network [OSTI]

    Naoto Yokoyama; Masanori Takaoka

    2013-02-15T23:59:59.000Z

    Variety of statistically steady energy spectra in elastic wave turbulence have been reported in numerical simulations, experiments, and theoretical studies. Focusing on the energy levels of the system, we have performed direct numerical simulations according to the F\\"{o}ppl--von K\\'{a}rm\\'{a}n equation, and successfully reproduced the variability of the energy spectra by changing the magnitude of external force systematically. When the total energies in wave fields are small, the energy spectra are close to a statistically steady solution of the kinetic equation in the weak turbulence theory. On the other hand, in large-energy wave fields, another self-similar spectrum is found. Coexistence of the weakly nonlinear spectrum in large wavenumbers and the strongly nonlinear spectrum in small wavenumbers are also found in moderate energy wave fields.

  19. Spin dynamics in the strong spin-orbit coupling regime

    E-Print Network [OSTI]

    Liu, Xin; Liu, Xiong-Jun; Sinova, Jairo.

    2011-01-01T23:59:59.000Z

    direction is constructed by the superposition of the two electrons with wave vectors k and k + q. In this case, the spin precession frequency will be#15;1(2) #15; #15;0(1? qQ ), where Q = 2m?1. damped oscillatory modes in the clean system corresponding... mode is zero for all of the electron momentum k. On the 035318-4 SPIN DYNAMICS IN THE STRONG SPIN-ORBIT . . . PHYSICAL REVIEW B 84, 035318 (2011) 0 0.5 1 1.5 2 0.2 0.4 0.6 0.8 1 q/Q (i R e Im ? ? ) ?so? = 0.4 ?so? = 0.5 ?so? = 0.6 ?so...

  20. Neutrino-electron processes in a strongly magnetized thermal plasma

    E-Print Network [OSTI]

    Stephen J. Hardy; Markus H. Thoma

    2000-11-15T23:59:59.000Z

    We present a new method of calculating the rate of neutrino-electron interactions in a strong magnetic field based on finite temperature field theory. Using this method, in which the effect of the magnetic field on the electron states is taken into account exactly, we calculate the rates of all of the lowest order neutrino-electron interactions in a plasma. As an example of the use of this technique, we explicitly calculate the rate at which neutrinos and antineutrinos annihilate in a highly magnetized plasma, and compare that to the rate in an unmagnetized plasma. The most important channel for energy deposition is the gyromagnetic absorption of a neutrino-antineutrino pair on an electron or positron in the plasma ($\

  1. Periodic orbit quantization of chaotic systems with strong pruning

    E-Print Network [OSTI]

    K. Weibert; J. Main; G. Wunner

    2002-03-13T23:59:59.000Z

    The three-disk system, which for many years has served as a paradigm for the usefulness of cycle expansion methods, represents an extremely hard problem to semiclassical quantization when the disks are moved closer and closer together, since (1) pruning of orbits sets in, rendering the symbolic code incomplete, and (2) the number of orbits necessary to obtain accurate semiclassical eigenvalues proliferates exponentially. In this note we show that an alternative method, viz. harmonic inversion, which does not rely on the existence of complete symbolic dynamics or other specific properties of systems, provides a key to solving the problem of semiclassical quantization of systems with strong pruning. For the closed three-disk system we demonstrate how harmonic inversion, augmented by a signal cross-correlation technique, allows one to semiclassically calculate the energies up to the 28th excited state with high accuracy.

  2. LAMMPS strong scaling performance optimization on Blue Gene/Q

    SciTech Connect (OSTI)

    Coffman, Paul; Jiang, Wei; Romero, Nichols A.

    2014-11-12T23:59:59.000Z

    LAMMPS "Large-scale Atomic/Molecular Massively Parallel Simulator" is an open-source molecular dynamics package from Sandia National Laboratories. Significant performance improvements in strong-scaling and time-to-solution for this application on IBM's Blue Gene/Q have been achieved through computational optimizations of the OpenMP versions of the short-range Lennard-Jones term of the CHARMM force field and the long-range Coulombic interaction implemented with the PPPM (particle-particle-particle mesh) algorithm, enhanced by runtime parameter settings controlling thread utilization. Additionally, MPI communication performance improvements were made to the PPPM calculation by re-engineering the parallel 3D FFT to use MPICH collectives instead of point-to-point. Performance testing was done using an 8.4-million atom simulation scaling up to 16 racks on the Mira system at Argonne Leadership Computing Facility (ALCF). Speedups resulting from this effort were in some cases over 2x.

  3. Strongly interacting confined quantum systems in one dimension

    E-Print Network [OSTI]

    A. G. Volosniev; D. V. Fedorov; A. S. Jensen; M. Valiente; N. T. Zinner

    2015-05-24T23:59:59.000Z

    In one dimension, the study of magnetism dates back to the dawn of quantum mechanics when Bethe solved the famous Heisenberg model that describes quantum behaviour in magnetic systems. In the last decade, one-dimensional systems have become a forefront area of research driven by the realization of the Tonks-Girardeau gas using cold atomic gases. Here we prove that one-dimensional fermionic and bosonic systems with strong short-range interactions are solvable in arbitrary confining geometries by introducing a new energy-functional technique and obtaining the full spectrum of energies and eigenstates. As a first application, we calculate spatial correlations and show how both ferro- and anti-ferromagnetic states are present already for small system sizes that are prepared and studied in current experiments. Our work demonstrates the enormous potential for quantum manipulation of magnetic correlations at the microscopic scale.

  4. Weak Gravity Strongly Constrains Large-Field Axion Inflation

    E-Print Network [OSTI]

    Ben Heidenreich; Matthew Reece; Tom Rudelius

    2015-06-10T23:59:59.000Z

    Models of large-field inflation based on axion-like fields with shift symmetries can be simple and natural, and make a promising prediction of detectable primordial gravitational waves. The Weak Gravity Conjecture is known to constrain the simplest case in which a single axion descends from a gauge field in an extra dimension. By supplementing the Weak Gravity Conjecture with considerations of how the mass spectrum of the theory varies across the axion moduli space, we obtain more powerful constraints that apply to a variety of multi-axion theories including N-flation and alignment models. In every case that we consider, plausible assumptions lead to field ranges that cannot be parametrically larger than the Planck scale. Our results are strongly suggestive of a general inconsistency in models of large-field inflation based on axions, and possibly of a more general principle forbidding super-Planckian field ranges.

  5. Weak Gravity Strongly Constrains Large-Field Axion Inflation

    E-Print Network [OSTI]

    Heidenreich, Ben; Rudelius, Tom

    2015-01-01T23:59:59.000Z

    Models of large-field inflation based on axion-like fields with shift symmetries can be simple and natural, and make a promising prediction of detectable primordial gravitational waves. The Weak Gravity Conjecture is known to constrain the simplest case in which a single axion descends from a gauge field in an extra dimension. By supplementing the Weak Gravity Conjecture with considerations of how the mass spectrum of the theory varies across the axion moduli space, we obtain more powerful constraints that apply to a variety of multi-axion theories including N-flation and alignment models. In every case that we consider, plausible assumptions lead to field ranges that cannot be parametrically larger than the Planck scale. Our results are strongly suggestive of a general inconsistency in models of large-field inflation based on axions, and possibly of a more general principle forbidding super-Planckian field ranges.

  6. Localized Axion Photon States in a Strong Magnetic Field

    E-Print Network [OSTI]

    E. I. Guendelman

    2008-01-04T23:59:59.000Z

    We consider the axion field and electromagnetic waves with rapid time dependence, coupled to a strong time independent, asymptotically approaching a constant at infinity "mean" magnetic field, which takes into account the back reaction from the axion field and electromagnetic waves with rapid time dependence in a time averaged way. The direction of the self consistent mean field is orthogonal to the common direction of propagation of the axion and electromagnetic waves with rapid time dependence and parallel to the polarization of these electromagnetic waves. Then, there is an effective U(1) symmetry mixing axions and photons. Using the natural complex variables that this U(1) symmetry suggests we find localized planar soliton solutions. These solutions appear to be stable since they produce a different magnetic flux than the state with only a constant magnetic field, which we take as our "ground state". The solitons also have non trivial U(1) charge defined before, different from the uncharged vacuum.

  7. Strong shock generation by fast electron energy deposition

    SciTech Connect (OSTI)

    Fox, T. E.; Pasley, J. [York Plasma Institute, University of York, York YO10 5DD (United Kingdom) [York Plasma Institute, University of York, York YO10 5DD (United Kingdom); Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX (United Kingdom); Robinson, A. P. L. [Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX (United Kingdom)] [Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX (United Kingdom)

    2013-12-15T23:59:59.000Z

    It has been suggested that fast electrons may play a beneficial role in the formation of the ignitor shock in shock ignition owing to the high areal density of the fuel at the time of the ignitor pulse. In this paper, we extend previous studies which have focused on monoenergetic electron sources to populations with extended energy distributions. In good agreement with analytic scalings, we show that strong shocks can be produced with peak pressures of a few hundred Mbar to over 1 Gbar using fast electron intensities of 1–10 PW/cm{sup 2} in a uniform deuterium-tritium plasma at 10 g/cm{sup 3}. However, the length required for shock formation increases with fast electron temperature. As this shock formation distance becomes comparable to the target size, the shock is not able to fully develop, and this implies a limit on the ability of fast electrons to aid shock formation.

  8. The flyby anomaly: A case for strong gravitomagnetism ?

    E-Print Network [OSTI]

    Acedo, L

    2015-01-01T23:59:59.000Z

    In the last two decades an anomalous variation in the asymptotic velocity of spacecraft performing a flyby manoeuvre around Earth has been discovered through careful Doppler tracking and orbital analysis. No viable hypothesis for a conventional explanation of this effect has been proposed and its origin remains unexplained. In this paper we discuss a strong transversal component of the gravitomagnetic field as a possible source of the flyby anomaly. We show that the perturbations induced by such a field could fit the anomalies both in sign and order of magnitude. But, although the secular contributions to the Gravity Probe B experimental results and the Lense-Thirring effect in geodynamics satellites can be made null, the detailed orbital evolution is easily in conflict with such an enhanced gravitomagnetic effect.

  9. The flyby anomaly: A case for strong gravitomagnetism ?

    E-Print Network [OSTI]

    L. Acedo

    2015-05-26T23:59:59.000Z

    In the last two decades an anomalous variation in the asymptotic velocity of spacecraft performing a flyby manoeuvre around Earth has been discovered through careful Doppler tracking and orbital analysis. No viable hypothesis for a conventional explanation of this effect has been proposed and its origin remains unexplained. In this paper we discuss a strong transversal component of the gravitomagnetic field as a possible source of the flyby anomaly. We show that the perturbations induced by such a field could fit the anomalies both in sign and order of magnitude. But, although the secular contributions to the Gravity Probe B experimental results and the Lense-Thirring effect in geodynamics satellites can be made null, the detailed orbital evolution is easily in conflict with such an enhanced gravitomagnetic effect.

  10. Pion physics in two flavor strong coupling lattice QED

    E-Print Network [OSTI]

    D. J. Cecile

    2006-11-21T23:59:59.000Z

    We consider the lattice field theory involving two flavors of staggered quarks which interact with $U_A(1)$ gauge fields in the strong coupling limit. For massless quarks, this theory has an $SU_L(2)\\times SU_R(2) \\times U_A(1)$ symmetry. We show explicitly how pions emerge through the phenomena of confinement in this theory. We also show how one can incorporate the physics of the anomaly in this theory. Thus, our approach is a good pedagogical tool to explain how pions arise in real QCD. Another advantage of our approach is that we can easily design efficient cluster algorithms to compute a variety of quantities close to the chiral limit, thus allowing us to understand the low energy physics in a QCD-like setting from first principles.

  11. Strong magnetic fields and inhomogeneity in the solar corona

    SciTech Connect (OSTI)

    White, S.M.; Kundu, M.R.; Gopalswamy, N. (Maryland Univ., College Park (USA))

    1991-01-01T23:59:59.000Z

    It is shown that fields of 1800 G can exist in the corona based on observations of gyroresonance emission at 15 GHz at coronal temperatures. The strong fields occur in a small source radiating in the extraordinary (x) mode over the penumbra of a large symmetric sunspot. The optically-thin ordinary mode emission from the region shows a nearby peak at only 36,000 K which may be due to a sunspot plume, and a hole over the umbra consistent with the expected low-density material there. The x-mode source is highly asymmetric, despite the apparent symmetry of the sunspot, and its appearance and location imply that the strongest magnetic fields in the corona are localized in a compact flux tube. 21 refs.

  12. Strong Ultraviolet Pulse From a Newborn Type Ia Supernova

    E-Print Network [OSTI]

    Cao, Yi; Howell, D Andrew; Gal-Yam, Avishay; Kasliwal, Mansi M; Valenti, Stefano; Johansson, J; Amanullah, R; Goobar, A; Sollerman, J; Taddia, F; Horesh, Assaf; Sagiv, Ilan; Cenko, S Bradley; Nugent, Peter E; Arcavi, Iair; Surace, Jason; Wo?niak, P R; Moody, Daniela I; Rebbapragada, Umaa D; Bue, Brian D; Gehrels, Neil

    2015-01-01T23:59:59.000Z

    Type Ia supernovae are destructive explosions of carbon oxygen white dwarfs. Although they are used empirically to measure cosmological distances, the nature of their progenitors remains mysterious, One of the leading progenitor models, called the single degenerate channel, hypothesizes that a white dwarf accretes matter from a companion star and the resulting increase in its central pressure and temperature ignites thermonuclear explosion. Here we report observations of strong but declining ultraviolet emission from a Type Ia supernova within four days of its explosion. This emission is consistent with theoretical expectations of collision between material ejected by the supernova and a companion star, and therefore provides evidence that some Type Ia supernovae arise from the single degenerate channel.

  13. Radiation from electrons in graphene in strong electric field

    E-Print Network [OSTI]

    N. Yokomizo

    2014-05-05T23:59:59.000Z

    We study the interaction of electrons in graphene with the quantized electromagnetic field in the presence of an applied uniform electric field using the Dirac model of graphene. Electronic states are represented by exact solutions of the Dirac equation in the electric background, and amplitudes of first-order Feynman diagrams describing the interaction with the photon field are calculated for massive Dirac particles in both valleys. Photon emission probabilities from a single electron and from a many-electron system at the charge neutrality point are derived, including the angular and frequency dependence, and several limiting cases are analyzed. The pattern of photon emission at the Dirac point in a strong field is determined by an interplay between the nonperturbative creation of electron-hole pairs and spontaneous emission, allowing for the possibility of observing the Schwinger effect in measurements of the radiation emitted by pristine graphene under DC voltage.

  14. Strong nonlinear current–voltage behaviour in iron oxyborate

    SciTech Connect (OSTI)

    Song, Yuanjun [Department of Physics, Beihang University, Beijing 100191 (China); Xu, Yingying; Song, Yujun [School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083 (China); Li, Jianqi [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Wang, Rongming, E-mail: rmwang@buaa.edu.cn [Department of Physics, Beihang University, Beijing 100191 (China); School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083 (China)

    2014-11-15T23:59:59.000Z

    Strong nonlinear resistance has been found in the charge ordered ferroelectric iron oxyborate (Fe{sub 2}OBO{sub 3}) with a high dielectric constant and giant converse magnetoelectric effect. In low temperature range the I-V nonlinearity increases quickly with decreasing temperature. Transport measurements on polycrystalline and single crystal Fe{sub 2}OBO{sub 3} indicate that the nonlinearity is not induced by grain boundaries. The nonlinear I-V behavior is intrinsically correlated with the charge order phase melting in Fe{sub 2}OBO{sub 3} by detailed in-situ TEM investigations. These results provide an insight into structure-activity relationship of resistance switching effects at atomic and electric scales, which is essential for its potential application as varistors and storage media.

  15. Quantum theory of collective strong coupling of molecular vibrations with a microcavity mode

    E-Print Network [OSTI]

    Javier del Pino; Johannes Feist; Francisco J. Garcia-Vidal

    2015-02-27T23:59:59.000Z

    We develop a quantum mechanical formalism to treat the strong coupling between an electromagnetic mode and a vibrational excitation of an ensemble of organic molecules. By employing a Bloch-Redfield-Wangsness approach, we show that the influence of dephasing-type interactions, i.e., elastic collisions with a background bath of phonons, critically depends on the nature of the bath modes. In particular, for long-range phonons corresponding to a common bath, the dynamics of the "bright state" (the collective superposition of molecular vibrations coupling to the cavity mode) is effectively decoupled from other system eigenstates. For the case of independent baths (or short-range phonons), incoherent energy transfer occurs between the bright state and the uncoupled dark states. However, these processes are suppressed when the Rabi splitting is larger than the frequency range of the bath modes, as achieved in a recent experiment [Shalabney et al., Nat. Commun. 6, 5981 (2015)]. In both cases, the dynamics can thus be described through a single collective oscillator coupled to a photonic mode, making this system an ideal candidate to explore cavity optomechanics at room temperature.

  16. ENERGETIC CHARGED PARTICLES ASSOCIATED WITH STRONG INTERPLANETARY SHOCKS

    SciTech Connect (OSTI)

    Giacalone, Joe [Department of Planetary Sciences, University of Arizona, Tucson, AZ (United States)

    2012-12-10T23:59:59.000Z

    We analyze observations of energetic charged particles associated with many strong interplanetary shocks seen by Advanced Composition Explorer. We focus primarily on 47-187 keV suprathermal protons and restrict our analysis to strong interplanetary shocks (Alfven Mach number >3 and the shock density compression >2.5). Eighteen shocks meeting this criterion from 1998 to 2003 were analyzed. All 18 had enhancements of the 47-65 keV proton intensity above the intensity seen one day before the shock. In 17 events, the particle intensity either rose to a quasi-plateau or peaked within 10 minutes of the shock. Most had intensities at the shock exceeding 100 times more than that seen the day before the shock arrived. The time-intensity profiles of the energetic proton events in many cases reveal a rise before the shock passage reaching a quasi-plateau or local peak at the shock, followed by a gradual decline. This suggests that the shock itself is the source of energetic particles. Energy spectra behind the shock were fit to an assumed power law over the interval from 46 to 187 keV, and the resulting spectral index was compared to the plasma density jump across each shock. Most events agree with the prediction of diffusive shock acceleration theory to within the observational uncertainties. We also analyzed a few selected events to determine the particle spatial diffusion coefficients and acceleration timescales. We find that the time to accelerate protons to {approx}50 keV is of the order of an hour.

  17. Short and Long-Term Perspectives: The Impact on Low-Income Consumers of Forecasted Energy Price Increases in 2008 and A Cap & Trade Carbon Policy in 2030

    SciTech Connect (OSTI)

    Eisenberg, Joel Fred [ORNL

    2008-01-01T23:59:59.000Z

    The Department of Energy's Energy Information Administration (EIA) recently released its short-term forecast for residential energy prices for the winter of 2007-2008. The forecast indicates increases in costs for low-income consumers in the year ahead, particularly for those using fuel oil to heat their homes. In the following analysis, the Oak Ridge National Laboratory has integrated the EIA price projections with the Residential Energy Consumption Survey (RECS) for 2001 in order to project the impact of these price increases on the nation's low-income households by primary heating fuel type, nationally and by Census Region. The report provides an update of bill estimates provided in a previous study, "The Impact Of Forecasted Energy Price Increases On Low-Income Consumers" (Eisenberg, 2005). The statistics are intended for use by policymakers in the Department of Energy's Weatherization Assistance Program and elsewhere who are trying to gauge the nature and severity of the problems that will be faced by eligible low-income households during the 2008 fiscal year. In addition to providing expenditure forecasts for the year immediately ahead, this analysis uses a similar methodology to give policy makers some insight into one of the major policy debates that will impact low-income energy expenditures well into the middle decades of this century and beyond. There is now considerable discussion of employing a cap-and-trade mechanism to first limit and then reduce U.S. emissions of carbon into the atmosphere in order to combat the long-range threat of human-induced climate change. The Energy Information Administration has provided an analysis of projected energy prices in the years 2020 and 2030 for one such cap-and-trade carbon reduction proposal that, when integrated with the RECS 2001 database, provides estimates of how low-income households will be impacted over the long term by such a carbon reduction policy.

  18. ECR Nb Films Grown on Amorphous and Crystalline Cu Substrates: Influence of Ion Energy

    SciTech Connect (OSTI)

    Valente, Anne-Marie [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Eremeev, Grigory V. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Spradlin, Joshua K. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Phillips, H. Lawrence [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Reece, Charles E. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Cao, C. [Illinois Inst. of Technology, Chicago, IL (United States); Proslier, Thomas [Argonne National Laboratory, Argonne, IL (United States); Tao, T. [Univ. of Illinois at Chicago, Chicago, IL (United States)

    2014-02-01T23:59:59.000Z

    In the pursuit of niobium (Nb) films with similar performance with the commonly used bulk Nb surfaces for Superconducting RF (SRF) applications, significant progress has been made with the development of energetic condensation deposition techniques. Using energetic condensation of ions extracted from plasma generated by Electron Cyclotron Resonance, it has been demonstrated that Nb films with good structural properties and RRR comparable to bulk values can be produced on metallic substrates. The controlled incoming ion energy enables a number of processes such as desorption of adsorbed species, enhanced mobility of surface atoms and sub-implantation of impinging ions, thus producing improved film structures at lower process temperatures. Particular attention is given to the nucleation conditions to create a favourable template for growing the final surface exposed to SRF fields. The influence of the deposition energy on film growth on copper substrates is investigated with the characterization of the film surface, structure, superconducting properties and RF performance.

  19. The Taxman Tools Up: An Event History Study of the Introduction of the Personal Income Tax in Western Europe, 1815 - 1941

    E-Print Network [OSTI]

    Aidt, Toke S; Jensen, Peter S

    , a¤ected not only by the constituency of government and the party composition of parliament, but also by how easy it is to contest political power by di¤erent factions in society. Given that the income tax is a potentially powerful tool for redistri... that might have in?uenced the decision to adopt the income tax is the degree of political competition. By political competition, we mean the extent to which political power can be contested by organized factions and the executive can be held accountable...

  20. Observation of Strong Resonant Behavior in the Inverse Photoelectron Spectroscopy of Ce Oxide

    SciTech Connect (OSTI)

    Tobin, J G; Yu, S W; Chung, B W; Waddill, G D; Damian, E; Duda, L; Nordgren, J

    2009-12-15T23:59:59.000Z

    X-ray Emission Spectroscopy (XES) and Resonant Inverse Photoelectron Spectroscopy (RIPES) have been used to investigate the photon emission associated with the Ce3d5/2 and Ce3d3/2 thresholds. Strong resonant behavior has been observed in the RIPES of Ce Oxide near the 5/2 and 3/2 edges. Inverse Photoelectron Spectroscopy (IPES) and its high energy variant, Bremstrahlung Isochromat Spectroscopy (BIS), are powerful techniques that permit a direct interrogation of the low-lying unoccupied electronic structure of a variety of materials. Despite being handicapped by counting rates that are approximately four orders of magnitude less that the corresponding electron spectroscopies (Photoelectron Spectroscopy, PES, and X-ray Photoelectron Spectroscopy, XPS) both IPES and BIS have a long history of important contributions. Over time, an additional variant of this technique has appeared, where the kinetic energy (KE) of the incoming electron and photon energy (hv) of the emitted electron are roughly the same magnitude as the binding energy of a core level of the material in question. Under these circumstances and in analogy to Resonant Photoelectron Spectroscopy, a cross section resonance can occur, giving rise to Resonant Inverse Photoelectron Spectroscopy or RIPES. Here, we report the observation of RIPES in an f electron system, specifically the at the 3d{sub 5/2} and 3d{sub 3/2} thresholds of Ce Oxide. The resonant behavior of the Ce4f structure at the 3d thresholds has been addressed before, including studies of the utilization of the technique as a probe of electron correlation in a variety of Ce compounds. Interestingly, the first RIPES work on rare earths dates back to 1974, although under conditions which left the state of the surface and near surface regions undefined. Although they did not use the more modern terminology of 'RIPES,' it is clear that RIPES was actually first performed in 1974 by Liefeld, Burr and Chamberlain on both La and Ce based materials. In these experiments, the La and Ce metallic samples were attached to the anode of an x-ray tube and the x-ray emission characteristics were measured using a two crystal monochromator. The pressure in the x-ray tube was quoted as being below 2 x 10{sup -8} Torr. They did indeed observed resonant behavior at the M{alpha} (3d{sub 5/2}) and M{beta} (3d{sub 3/2}) thresholds. In fact, our results here will confirm the measurements made upon the Ce based sample used in by Liefeld et al. However, the state of the Ce sample surface and near surface regions are quite undefined in the study in Ref 9. For example, the authors suggest that they are probing Ce metal, since they cannot see any evidence of an OK{alpha} (1s) XES line. However, they do report the observation of FK{alpha} (1s) line, possibly due to the utilization of cerium fluoride in the sample preparation. Later, they tried to address these issues in a new ultrahigh vacuum system. Based upon our results, it is clear that their original sample surface was oxidized, using the word here in its more general context as in having lost electrons to the oxidizing agent, although whether the structure is an oxide or fluoride remains unclear. In any case, the primacy of Liefeld and coworkers in these measurements should be noted. Cerium and cerium oxide have been studied with a variety of spectroscopic techniques under UHV conditions. This includes Bremstrahlung Isochromat Spectroscopy or BIS, Photoelectron Spectroscopy, X-ray Absorption Spectroscopy, Electron Energy Loss Spectroscopy and Resonant XES, to name just a few. We will compare our results to those of other spectroscopies.

  1. Overview of SMIP (Strong Motion Instrumentation Program) strong motion records from the Loma Prieta earthquake 17 October 1989

    SciTech Connect (OSTI)

    Reichle, M.; Darragh, R.; Cao, T.; Sherburne, R.; Shakal, A.

    1990-01-01T23:59:59.000Z

    A total of 125 strong-motion records were recovered from 93 stations of the California Strong Motion Instrumentation Program (CSMIP). The 93 stations include 53 ground-response stations and 40 extensively instrumented structures. The most distant stations were approximately 175 km (105 miles) from the epicenter. Twenty-five records were obtained within 40 km (24 miles) of the epicenter. The closest SMIP station is Corralitos, located very close to the San Andreas fault and near the center of the aftershock zone. A peak horizontal acceleration of 65 percent g was recorded at this station. This is the first record from the nearfield of a magnitude 7 earthquake in California. Three other stations, Santa Cruz, Capitola, and Watsonville, within 20 km (12 miles) of the epicenter, recorded the shaking in the heavily damaged coastal area. Peak horizontal accelerations ranged from 40 percent g at Watsonville to 54 percent g at Capitola. All four of these stations recorded high vertical accelerations ranging from 40 percent g at Santa Cruz to 60 percent g at Capitola. Nine SMIP stations recorded the ground motion in the City of San Francisco with peak horizontal accelerations ranging from 9 percent to 21 percent g. Stations located on Yerba Buena Island and Treasure Island form a rock/soil pair that recorded peak horizontal accelerations of 6 percent and 16 percent g, respectively. In Oakland two stations recorded the ground motion of 26 percent and 29 percent g suggesting a similar level of shaking at the I-880 Freeway and at the east end of the damaged San Francisco-Oakland Bay Bridge.

  2. The Impact of DOE Building Technology Energy Efficiency Programs on U.S. Employment, Income, and Investment

    SciTech Connect (OSTI)

    Scott, Michael J.; Roop, Joseph M.; Schultz, Robert W.; Anderson, Dave M.; Cort, Katherine A.

    2008-07-31T23:59:59.000Z

    To more fully evaluate its programs to increase the energy efficiency of the U.S. residential and commercial building stock, the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) assesses the macroeconomic impacts of those programs, specifically on national employment, wage income, and (most recently) investment. The analysis is conducted using the Impact of Sector Energy Technologies (ImSET) model, a special-purpose 188-sector input-output model of the U.S. economy designed specifically to evaluate the impacts of energy efficiency investments and saving. For the analysis described in the paper, ImSET was amended to provide estimates of sector-by-sector capital requirements and investment. In the scenario of the Fiscal Year (FY) 2005 Buildings Technology (BT) program, the technologies and building practices being developed and promoted by the BT program have the prospect of saving about 2.9×1015 Btu in buildings by the year 2030, about 27% of the expected growth in buildings energy consumption by the year 2030. The analysis reported in the paper finds that, by the year 2030, these savings have the potential to increase employment by up to 446,000 jobs, increase wage income by $7.8 billion, reduce needs for capital stock in the energy sector and closely related supporting industries by about $207 billion (and the corresponding annual level of investment by $13 billion), and create net capital savings that are available to grow the nation’s future economy.

  3. Reversal of Hugoniot locus for strong shocks due to radiation

    SciTech Connect (OSTI)

    Li Jiwei; Li Jinghong; Meng Guangwei [Institute of Applied Physics and Computational Mathematics, Beijing 100094 (China)

    2011-04-15T23:59:59.000Z

    Shock Hugoniot can be used to express the response of a material to shocks, and the compression ratio of the shock can be determined by the Hugoiot locus. When the shock is strong, it will become radiating, and the radiation will affect the Hugoniot. The role of radiation on the Hugoniot condition is studied in the paper. For the radiative flux-dominated shocks, the radiative flux if large enough may render the structure of the shock Hugoniot locus totally different with the case for the pure hydrodynamic shock: the two branches with one in quadrant I and the other in quadrant III are reversed into two in quadrants IV and II, respectively, correspondingly the compression ratio may be larger than the limiting value ({gamma}+1)/({gamma}-1) for ideal gases with index {gamma}. For the radiative shock in which the radiative heat wave propagates supersonically, a threshold value for the net radiative flux to the preshock is also defined which determines whether the Hugoniot locus is reversed and the compression ratio exceeds the limiting value. Numerical results also verify the reversal of the Hugoniot locus of the shocks if the net radiative flux to the preshock exceeds the threshold value.

  4. Phase transition oscillations induced by a strongly focused laser beam

    E-Print Network [OSTI]

    Devailly, Clémence; Petrosyan, Artyom; Ciliberto, Sergio

    2015-01-01T23:59:59.000Z

    We report here the observation of a surprising phenomenon consisting in a oscillating phase transition which appears in a binary mixture, PMMA/3-octanone, when this is enlightened by a strongly focused infrared laser beam. PMMA/3-octanone has a UCST (Upper Critical Solution Temperature) which presents a critical point at temperature Tc = 306.6 K and volume fraction $\\phi$c = 12.8 % [Crauste et al., ArXiv 1310.6720, 2012]. This oscillatory phenomenon appears because of thermophoretic and electrostriction effects and non-linear diffusion. We analyze these oscillations and we propose a simple model which includes the minimal ingredients to produce the oscillatory behavior. Phase transitions in binary mixtures are still a widely studied subject, specifically near the critical point where several interesting and not completely understood phenomena may appear, among them we recall the critical Casimir forces [2],[3], confinement effects [4], [5] and out-of-equilibrium dynamics after a quench. The perturbation of th...

  5. A scanning transmon qubit for strong coupling circuit quantum electrodynamics

    E-Print Network [OSTI]

    William E. Shanks; Devin L. Underwood; Andrew A. Houck

    2013-03-04T23:59:59.000Z

    Like a quantum computer designed for a particular class of problems, a quantum simulator enables quantitative modeling of quantum systems that is computationally intractable with a classical computer. Quantum simulations of quantum many-body systems have been performed using ultracold atoms and trapped ions among other systems. Superconducting circuits have recently been investigated as an alternative system in which microwave photons confined to a lattice of coupled resonators act as the particles under study with qubits coupled to the resonators producing effective photon-photon interactions. Such a system promises insight into the nonequilibrium physics of interacting bosons but new tools are needed to understand this complex behavior. Here we demonstrate the operation of a scanning transmon qubit and propose its use as a local probe of photon number within a superconducting resonator lattice. We map the coupling strength of the qubit to a resonator on a separate chip and show that the system reaches the strong coupling regime over a wide scanning area.

  6. The Weibel instability in a strongly coupled plasma

    SciTech Connect (OSTI)

    Mahdavi, M., E-mail: m.mahdavi@umz.ac.ir; Khanzadeh, H. [Physics Department, University of Mazandaran, P. O. Box 47415-416, Babolsar (Iran, Islamic Republic of)

    2014-06-15T23:59:59.000Z

    In this paper, the growth rate of the Weibel instability is calculated for an energetic relativistic electron beam penetrated into a strongly coupled plasma, where the collision effects of background electron-ion scattering play an important role in equations. In order to calculate the growth rate of the Weibel instability, two different models of anisotropic distribution function are used. First, the distribution of the plasma and beam electrons considered as similar forms of bi-Maxwellian distribution. Second, the distribution functions of the plasma electrons and the beam electrons follows bi-Maxwellian and delta-like distributions, respectively. The obtained results show that the collision effect decreases the growth rate in two models. When the distribution function of electrons beam is in bi-Maxwellian form, the instability growth rate is greater than where the distribution function of beam electrons is in delta-like form, because, the anisotropic temperature for bi-Maxwellian distribution function in velocity space is greater than the delta-like distribution function.

  7. Helium stratification in HD 145792: a new Helium strong star

    E-Print Network [OSTI]

    G. Catanzaro

    2007-11-28T23:59:59.000Z

    In this paper we report on the real nature of the star HD 145792, classified as He weak in {\\it ``The General Catalogue of Ap and Am stars''}. By means of FEROS@ESO1.52m high resolution spectroscopic data, we refined the atmospheric parameters of the star, obtaining: T$_{\\rm eff}$ = 14400 $\\pm$ 400 K, $\\log g$ = 4.06 $\\pm$ 0.08 and $\\xi$ = 0 $^{+0.6}$ km s$^{-1}$. These values resulted always lower than those derived by different authors with pure photometric approaches. Using our values we undertook an abundance analysis with the aim to derive, for the first time, the chemical pattern of the star's atmosphere. For metals a pure LTE synthesis (ATLAS9 and SYNTHE) has been used, while for helium a hybrid approach has been preferred (ATLAS9 and SYNSPEC). The principal result of our study is that HD 145792 belongs to He strong class contrary to the previous classification. Moreover, helium seems to be vertically stratified in the atmosphere, decreasing toward deepest layers. For what that concerns metals abundances, we found the following: overabundance of oxygen, neon, silicon, phosphorus, sulfur and calcium; carbon, nitrogen, magnesium, aluminum, titanium, chromium and nickel are normal, being the discrepancies from the solar values within the experimental errors; iron resulted to be slightly underabundant.

  8. Jet quenching in hot strongly coupled gauge theories simplified

    E-Print Network [OSTI]

    Peter Arnold; Diana Vaman

    2011-01-13T23:59:59.000Z

    Theoretical studies of jet stopping in strongly-coupled QCD-like plasmas have used gauge-gravity duality to find that the maximum stopping distance scales like E^{1/3} for large jet energies E. In recent work studying jets that are created by finite-size sources in the gauge theory, we found an additional scale: the typical (as opposed to maximum) jet stopping distance scales like (EL)^{1/4}, where L is the size of the space-time region where the jet is created. In this paper, we show that the results of our previous, somewhat involved computation in the gravity dual, and the (EL)^{1/4} scale in particular, can be very easily reproduced and understood in terms of the distance that high-energy particles travel in AdS_5-Schwarzschild space before falling into the black brane. We also investigate how stopping distances depend on the conformal dimension of the source operator used to create the jet.

  9. 1.85 Approximation for Min-Power Strong Connectivity

    E-Print Network [OSTI]

    Calinescu, Gruia

    2012-01-01T23:59:59.000Z

    Given a directed simple graph G=(V,E) and a nonnegative-valued cost function the power of a vertex u in a directed spanning subgraph H is given by the maximum cost of an arcs of H exiting u. The power of H is the sum of the power of its vertices. Power Assignment seeks to minimize the power of H while H satisfies some connectivity constraint. In this paper, we assume E is bidirected (for every directed edge e in E, the opposite edge exists and has the same cost), while H is required to be strongly connected. This is the original power assignment problem introduced by Chen and Huang in 1989, who proved that bidirected minimum spanning tree has approximation ratio at most 2 (this is tight). In Approx 2010, we introduced a Greedy approximation algorithm and claimed a ratio of 1.992. Here we improve the analysis to 1.85. The proof also shows that a natural linear programming relaxation, introduced by us in 2012, has the same 1.85 integrality gap.

  10. Hugh Rudnick California Crisis Influences

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    is hydro, with combined cycle natural gas plants growing at a rapid pace. All country deregulation models in 1994, and the Central American countries in 1997. Brazil also joined the group, and Venezuela, MexicoHugh Rudnick California Crisis Influences Further Reforms in Latin America The electric energy

  11. Computer Recommendations for incoming students in 2012-2013 The college of Engineering and Computer Science does not require students to have their own

    E-Print Network [OSTI]

    Wu, Shin-Tson

    Computer Recommendations for incoming students in 2012-2013 The college of Engineering and Computer Science does not require students to have their own personal computer. Students will have access to computers through their department, college, and university here on campus. However we do feel that having

  12. 7, 1268712714, 2007 Aerosols' influence

    E-Print Network [OSTI]

    Boyer, Edmond

    in the polluted cloud is due to a more efficient collection process. 1 Introduction10 The effect of aerosol). Numerous studies have addressed the effect of aerosol on marine stratocumulus clouds, due to their key role in the global radiative energy. Marine stratocumuli, bounded by strong marine boundary layer inversion, have

  13. Strong reactions in quantum super PDEs. III: Exotic quantum supergravity

    E-Print Network [OSTI]

    Agostino Prástaro

    2015-03-10T23:59:59.000Z

    Following the previous two parts, of a work devoted to encode strong reaction dynamics in the A. Pr\\'astaro's algebraic topology of quantum super PDE's, nonlinear quantum propagators in the observed quantum super Yang-Mills PDE, $\\hat{(YM)}[i]$, are further characterized. In particular, nonlinear quantum propagators with non-zero defect quantum electric-charge, are interpreted as {\\em exotic-quantum supergravity} effects. As an application, the recently discovered bound-state called $Zc(3900)$, is obtained as a neutral quasi-particle, generated in a $Q$-quantum exotic supergravity process. {\\em Quantum entanglement} is justified by means of the algebraic topologic structure of nonlinear quantum propagators. Quantum Cheshire cats are considered as examples of quantum entanglements. Existence theorem for solutions of $\\hat{(YM)}[i]$ admitting negative local temperatures ({\\em quantum thermodynamic-exotic solutions}) is obtained too and related to quantum entanglement. Such exotic solutions are used to encode Universe at the Planck-epoch. It is proved that the Universe's expansion at the Planck epoch is justified by the fact that it is encoded by a nonlinear quantum propagator having thermodynamic quantum exotic components in its boundary. This effect produces also an increasing of energy in the Universe at the Einstein epoch: {\\em Planck-epoch-legacy} on the boundary of our Universe. This is the main source of the Universe's expansion and solves the problem of the non-apparent energy-matter ({\\em dark-energy-matter}) in the actual Universe. Breit-Wheeler-type processes have been proved in the framework of the Pr\\'astaro's algebraic topology of quantum super Yang-Mills PDEs. Numerical comparisons of nonlinear quantum propagators with Weinberg-Salam electroweak theory in Standard Model are given.

  14. Improving experimental phases for strong reflections prior to density modification

    SciTech Connect (OSTI)

    Uervirojnangkoorn, Monarin [University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck (Germany); University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck (Germany); Hilgenfeld, Rolf, E-mail: hilgenfeld@biochem.uni-luebeck.de [University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck (Germany); Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, People’s Republic of (China); Terwilliger, Thomas C. [Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Read, Randy J. [University of Cambridge, Cambridge CB2 0XY (United Kingdom); University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck (Germany)

    2013-10-01T23:59:59.000Z

    A genetic algorithm has been developed to optimize the phases of the strongest reflections in SIR/SAD data. This is shown to facilitate density modification and model building in several test cases. Experimental phasing of diffraction data from macromolecular crystals involves deriving phase probability distributions. These distributions are often bimodal, making their weighted average, the centroid phase, improbable, so that electron-density maps computed using centroid phases are often non-interpretable. Density modification brings in information about the characteristics of electron density in protein crystals. In successful cases, this allows a choice between the modes in the phase probability distributions, and the maps can cross the borderline between non-interpretable and interpretable. Based on the suggestions by Vekhter [Vekhter (2005 ?), Acta Cryst. D61, 899–902], the impact of identifying optimized phases for a small number of strong reflections prior to the density-modification process was investigated while using the centroid phase as a starting point for the remaining reflections. A genetic algorithm was developed that optimizes the quality of such phases using the skewness of the density map as a target function. Phases optimized in this way are then used in density modification. In most of the tests, the resulting maps were of higher quality than maps generated from the original centroid phases. In one of the test cases, the new method sufficiently improved a marginal set of experimental SAD phases to enable successful map interpretation. A computer program, SISA, has been developed to apply this method for phase improvement in macromolecular crystallography.

  15. Strong reactions in quantum super PDEs. III: Exotic quantum supergravity

    E-Print Network [OSTI]

    Agostino Prástaro

    2015-03-23T23:59:59.000Z

    Following the previous two parts, of a work devoted to encode strong reaction dynamics in the A. Pr\\'astaro's algebraic topology of quantum super PDE's, nonlinear quantum propagators in the observed quantum super Yang-Mills PDE, $\\hat{(YM)}[i]$, are further characterized. In particular, nonlinear quantum propagators with non-zero defect quantum electric-charge, are interpreted as {\\em exotic-quantum supergravity} effects. As an application, the recently discovered bound-state called $Zc(3900)$, is obtained as a neutral quasi-particle, generated in a $Q$-quantum exotic supergravity process. {\\em Quantum entanglement} is justified by means of the algebraic topologic structure of nonlinear quantum propagators. Quantum Cheshire cats are considered as examples of quantum entanglements. Existence theorem for solutions of $\\hat{(YM)}[i]$ admitting negative local temperatures ({\\em quantum thermodynamic-exotic solutions}) is obtained too and related to quantum entanglement. Such exotic solutions are used to encode Universe at the Planck-epoch. It is proved that the Universe's expansion at the Planck epoch is justified by the fact that it is encoded by a nonlinear quantum propagator having thermodynamic quantum exotic components in its boundary. This effect produces also an increasing of energy in the Universe at the Einstein epoch: {\\em Planck-epoch-legacy} on the boundary of our Universe. This is the main source of the Universe's expansion and solves the problem of the non-apparent energy-matter ({\\em dark-energy-matter}) in the actual Universe. Breit-Wheeler-type processes have been proved in the framework of the Pr\\'astaro's algebraic topology of quantum super Yang-Mills PDEs. Numerical comparisons of nonlinear quantum propagators with Weinberg-Salam electroweak theory in Standard Model are given.

  16. Strong reactions in quantum super PDEs. III: Exotic quantum supergravity

    E-Print Network [OSTI]

    Agostino Prástaro

    2015-02-01T23:59:59.000Z

    Following the previous two parts, of a work devoted to encode strong reaction dynamics in the A. Pr\\'astaro's algebraic topology of quantum super PDE's, nonlinear quantum propagators in the observed quantum super Yang-Mills PDE, $\\hat{(YM)}[i]$, are further characterized. In particular, nonlinear quantum propagators with non-zero defect quantum electric-charge, are interpreted as {\\em exotic-quantum supergravity} effects. As an application, the recently discovered bound-state called $Zc(3900)$, is obtained as a neutral quasi-particle, generated in a $Q$-quantum exotic supergravity process. {\\em Quantum entanglement} is justified by means of the algebraic topologic structure of nonlinear quantum propagators. Quantum Cheshire cats are considered as examples of quantum entanglements. Existence theorem for solutions of $\\hat{(YM)}[i]$ admitting negative local temperatures ({\\em quantum thermodynamic-exotic solutions}) is obtained too and related to quantum entanglement. Such exotic solutions are used to encode Universe at the Planck-epoch. It is proved that the Universe's expansion at the Planck epoch is justified by the fact that it is encoded by a nonlinear quantum propagator having thermodynamic quantum exotic components in its boundary. This effect produces also an increasing of energy in the Universe at the Einstein epoch: {\\em Planck-epoch-legacy} on the boundary of our Universe. This is the main source of the Universe's expansion and solves the problem of the non-apparent energy-matter ({\\em dark-energy-matter}) in the actual Universe. Breit-Wheeler-type processes have been proved in the framework of the Pr\\'astaro's algebraic topology of quantum super Yang-Mills PDEs. Numerical comparisons of nonlinear quantum propagators with Weinberg-Salam electroweak theory in Standard Model are given.

  17. Production of large volume, strongly magnetized laser-produced plasmas by use of pulsed external magnetic fields

    SciTech Connect (OSTI)

    Albertazzi, B. [LULI, Ecole Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau (France); INRS-EMT, Varennes, Quebec J3X 1S2 (Canada); Beard, J.; Billette, J.; Portugall, O. [LNCMI, UPR 3228, CNRS-UFJ-UPS-INSA, 31400 Toulouse (France); Ciardi, A. [LERMA, Observatoire de Paris, Ecole Normale Superieure, Universite Pierre et Marie Curie, CNRS UMR 8112, Paris (France); Vinci, T.; Albrecht, J.; Chen, S. N.; Da Silva, D.; Hirardin, B.; Nakatsutsumi, M.; Romagnagni, L.; Simond, S.; Veuillot, E.; Fuchs, J. [LULI, Ecole Polytechnique, CNRS, CEA, UPMC, 91128 Palaiseau (France); Burris-Mog, T.; Dittrich, S.; Herrmannsdoerfer, T.; Kroll, F.; Nitsche, S. [Helmholtz-Zentrum Dresden-Rossendorf, P.O. Box 510119, 01314 Dresden (Germany); and others

    2013-04-15T23:59:59.000Z

    The production of strongly magnetized laser plasmas, of interest for laboratory astrophysics and inertial confinement fusion studies, is presented. This is achieved by coupling a 16 kV pulse-power system. This is achieved by coupling a 16 kV pulse-power system, which generates a magnetic field by means of a split coil, with the ELFIE laser facility at Ecole Polytechnique. In order to influence the plasma dynamics in a significant manner, the system can generate, repetitively and without debris, high amplitude magnetic fields (40 T) in a manner compatible with a high-energy laser environment. A description of the system and preliminary results demonstrating the possibility to magnetically collimate plasma jets are given.

  18. The Influence of Wealth and Race in Four-Year College Attendance

    E-Print Network [OSTI]

    Su Jin Jez

    2008-01-01T23:59:59.000Z

    tics of NLSY:97 s ample 95% confidence M ean Family wealth Family income a a SE interval Parental education (

  19. U.S. Fuel Cell Market Production and Deployment Continues Strong...

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

    U.S. Fuel Cell Market Production and Deployment Continues Strong Growth U.S. Fuel Cell Market Production and Deployment Continues Strong Growth January 8, 2014 - 12:00am Addthis...

  20. Phase transition oscillations induced by a strongly focused laser beam

    E-Print Network [OSTI]

    Clémence Devailly; Caroline Crauste-Thibierge; Artyom Petrosyan; Sergio Ciliberto

    2015-03-10T23:59:59.000Z

    We report here the observation of a surprising phenomenon consisting in a oscillating phase transition which appears in a binary mixture, PMMA/3-octanone, when this is enlightened by a strongly focused infrared laser beam. PMMA/3-octanone has a UCST (Upper Critical Solution Temperature) which presents a critical point at temperature Tc = 306.6 K and volume fraction $\\phi$c = 12.8 % [Crauste et al., ArXiv 1310.6720, 2012]. This oscillatory phenomenon appears because of thermophoretic and electrostriction effects and non-linear diffusion. We analyze these oscillations and we propose a simple model which includes the minimal ingredients to produce the oscillatory behavior. Phase transitions in binary mixtures are still a widely studied subject, specifically near the critical point where several interesting and not completely understood phenomena may appear, among them we recall the critical Casimir forces [2],[3], confinement effects [4], [5] and out-of-equilibrium dynamics after a quench. The perturbation of the binary mixtures by mean of external fields is also an important and recent field of investigation [6]. For example, a laser can induce interesting phenomena in demixing binary mixtures because the radiation pressure can deform the interface between the two phases and it can be used to measure the interface tension [7]. Depending on the nature of the binary mixtures, laser illumination can also lead to a mixing or demixing transition. In ref.[8], focused infrared laser light heats the medium initially in the homogeneous phase and causes a separation in the LCST (Low Critical Solution Temperature) system. The radiation pressure gradients in a laser beam also contribute in the aggregation of polymers , thus producing a phase transition. The local heating may induce thermophoretic forces which attract towards the laser beam one of the binary-mixture components [9]. Other forces like electrostriction can also be involved [10]. In this letter, we report a new phenomenon, which consists in an oscillating phase transition induced by a constant illumination from an infrared laser beam in the heterogeneous region of an UCST (Upper Critical Solution Temperature) binary mixture. Oscillation phenomena in phase transition have already been reported in slow cooling UCST [11],[12] but as far as we know, never induced by a stationary laser illumination. After describing our experimental setup , we will present the results. Then we will use a very simplified model which contains the main necessary physical ingredients to induce this oscillation phenomenon.

  1. Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Equivalence Class Testing

    E-Print Network [OSTI]

    Mousavi, Mohammad

    Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Equivalence Class Testing: Equivalence Class Testing #12;Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Outline Recap Weak Normal EC Strong Normal EC Robustness Combined with WCT Mousavi: Equivalence Class Testing #12

  2. Strong and uniform equivalence of nonmonotonic theories ---an algebraic Mirosl/aw Truszczy

    E-Print Network [OSTI]

    Truszczynski, Miroslaw

    Strong and uniform equivalence of nonmonotonic theories --- an algebraic approach # Mirosl mirekcs.uky.edu Abstract We show that the concepts of strong and uniform equivalence of logic programs can characterizations of strong and uniform equivalence for sev­ eral nonmonotonic logics including logic programming

  3. Reducing Strong Equivalence of Logic Programs to Entailment in Classical Propositional Logic

    E-Print Network [OSTI]

    Wu, Dekai

    Reducing Strong Equivalence of Logic Programs to Entailment in Classical Propositional Logic ] introduced a notion of strong equivalence be­ tween two logic programs, and showed that it can be captured theories that reduces this notion of strong equivalence to en­ tailment in classical propositional logic

  4. Neutron and X-ray Scattering Studies of Strongly Correlated Electron Systems

    E-Print Network [OSTI]

    Boothroyd, Andrew

    Neutron and X-ray Scattering Studies of Strongly Correlated Electron Systems Russell A. Ewings 2008 #12;Abstract Neutron and X-ray Scattering Studies of Strongly Correlated Electron Systems Russell-ray scattering and neutron scattering experiments on several strongly correlated transition metal oxides

  5. Tarski's influence on computer science

    E-Print Network [OSTI]

    Solomon Feferman

    2006-09-27T23:59:59.000Z

    The influence of Alfred Tarski on computer science was indirect but significant in a number of directions and was in certain respects fundamental. Here surveyed is the work of Tarski on the decision procedure for algebra and geometry, the method of elimination of quantifiers, the semantics of formal languages, modeltheoretic preservation theorems, and algebraic logic; various connections of each with computer science are taken up.

  6. Review of water, lighting, and cooling energy efficiency measures for low-income homes located in warm climates

    SciTech Connect (OSTI)

    Martin, M.A.; Gettings, M.B.

    1998-02-01T23:59:59.000Z

    In support of the U.S. Department of Energy`s Weatherization Assistance Program, Oak Ridge National Laboratory has performed a literature review of weatherization measures applicable for homes located in warm climate regions. Sources for this information included: (1) documented engineering estimates, (2) vendor information, (3) reported performance from research and field tests, and (4) direct discussions with researchers, vendors, and field reporters. Estimated savings are extrapolated from reported energy savings and applied to the end-use energy consumption for low-income homes reported by the Energy Information Administration. Additionally, installation costs, savings-to-investment ratios, and parameters indicating performance sensitivity to issues such as occupancy, construction, client education, and maintenance requirements are presented. The report is comprised of two sections: (1) an overview of measure performance, and (2) an appendix. The overview of measures is in a tabular format, which allows for quick reference. More detailed discussions and references for each measure are presented in the Appendix and it is highly recommended that these be reviewed prior to measure selection.

  7. 2, 605637, 2005 Influence of solar

    E-Print Network [OSTI]

    Boyer, Edmond

    HESSD 2, 605­637, 2005 Influence of solar activity on hydrological processes J. P´erez-Peraza et al Sciences Discussions Influence of solar activity on hydrological processes J. P´erez-Peraza 1 , A. Leyva;HESSD 2, 605­637, 2005 Influence of solar activity on hydrological processes J. P´erez-Peraza et al

  8. Journal influence factors6 Massimo Franceschet

    E-Print Network [OSTI]

    Franceschet, Massimo

    Journal influence factors6 Massimo Franceschet Department of Mathematics and Computer Science of journal influence, namely 2- year impact factor, 5-year impact factor, eigenfactor and article influence. These indicators have been recently added by Thomson Reuters to the Journal Citation Reports, in both science

  9. The influence of the growth of the Dallas/Fort Worth (DFW) Metroplex on regional precipitation patterns

    E-Print Network [OSTI]

    Nordfelt, Anna Marie

    2009-05-15T23:59:59.000Z

    Due to the effects urbanization has on land-use and land cover change (LULC), urban areas have a major influence on the environment. The strong coupling between the land and atmosphere can alter the microclimatology of cities and their surrounding...

  10. Influence of thermal cycling on the microstructure of a ferritic-austenitic duplex stainless steel

    SciTech Connect (OSTI)

    Horvath, W.; Prantl, W.; Werner, E.; Stuewe, H.P. [Montanuniversitat Leoben (Austria). Inst. of Metal Physics] [Montanuniversitat Leoben (Austria). Inst. of Metal Physics

    1995-06-01T23:59:59.000Z

    The influence of thermal cycling without any applied load on the microstructural features of a forged stainless ferritic-austenitic duplex steel was investigated by transmission electron microscopy. The steel was examined in uncycled and cycled conditions. Thermal cycling between 20 C and 900 C did not alter the volume fractions and the anisotropic grain structure of ferrite and austenite. On the other hand, thermal cycling has a strong influence on the dislocation arrangement in both phases. Three different types of precipitate were identified in the uncycled material. The amount of these particles was increased by thermal cycling. There was a strong evidence for the precipitation of {alpha}{prime} particles in the cycled material.

  11. Influence of sky conditions on carbon dioxide uptake by forests 

    E-Print Network [OSTI]

    Dengel, Sigrid

    2009-01-01T23:59:59.000Z

    Sky conditions play an important role in the Earth’s climate system, altering the solar radiation reaching the Earth’s surface and determining the fraction of incoming direct and diffuse radiation. Sky conditions dictate ...

  12. The Influence of the Built Environment on Poor Hispanic Youth

    E-Print Network [OSTI]

    Zhou, Lei

    2011-02-22T23:59:59.000Z

    San Antonio Youth Center program participated in the study. The first study examined the association between youth's household income, and the availability and accessibility of recreational and utilitarian facilities. Results indicated that youth from...

  13. Influence of the backward propagating waves on the threshold in planar nematic liquid crystal films

    E-Print Network [OSTI]

    Dmitry O. Krimer; Andrey E. Miroshnichenko; Etienne Brasselet

    2010-10-19T23:59:59.000Z

    We analyze theoretically the influence of backward propagating waves on the primary threshold when a linearly polarized light impinges at normal incidence on a planarly aligned nematic liquid crystal films. We show, that the primary threshold, as a function of the phase delay induced by the nematic layer, exhibits oscillations. The amplitude of oscillations depends strongly on the drop of the refractivity indices of the nematic and outer media at the boundaries.

  14. Housing Diversity and Consolidation in Low-Income Colonias: Patterns of House Form and Household Arrangements in Colonias of the US-Mexico Border

    E-Print Network [OSTI]

    Reimers-Arias, Carlos Alberto

    2010-10-12T23:59:59.000Z

    Housing Diversity and Consolidation in Low-Income Colonias: Patterns of House Form and Household Arrangements in Colonias of the US-Mexico Border. (August 2009) Carlos Alberto Reimers-Arias, B.Arch., Universidad Sim?n Bol?var; M.Arch., Mc... of DOCTOR OF PHILOSOPHY Approved by: Co-Chairs of Committee, Andrew D. Seidel Robin F. Abrams Committee Members, Marlynn L. May Robert B. Warden Head of Department, Glen T. Mills August 2009 Major Subject: Architecture iii ABSTRACT...

  15. Design and Evaluation of a Net Zero Energy Low-Income Residential Housing Development in Lafayette, Colorado

    SciTech Connect (OSTI)

    Dean, J.; VanGeet, O.; Simkus, S.; Eastment, M.

    2012-03-01T23:59:59.000Z

    This report outlines the lessons learned and sub-metered energy performance of an ultra low energy single family ranch home and duplex unit, called the Paradigm Pilot Project and presents the final design recommendations for a 153-unit net zero energy residential development called the Josephine Commons Project. Affordable housing development authorities throughout the United States continually struggle to find the most cost-effective pathway to provide quality, durable, and sustainable housing. The challenge for these authorities is to achieve the mission of delivering affordable housing at the lowest cost per square foot in environments that may be rural, urban, suburban, or within a designated redevelopment district. With the challenges the U.S. faces regarding energy, the environmental impacts of consumer use of fossil fuels and the increased focus on reducing greenhouse gas emissions, housing authorities are pursuing the goal of constructing affordable, energy efficient and sustainable housing at the lowest life-cycle cost of ownership. This report outlines the lessons learned and sub-metered energy performance of an ultra-low-energy single family ranch home and duplex unit, called the Paradigm Pilot Project and presents the final design recommendations for a 153-unit net zero energy residential development called the Josephine Commons Project. In addition to describing the results of the performance monitoring from the pilot project, this paper describes the recommended design process of (1) setting performance goals for energy efficiency and renewable energy on a life-cycle cost basis, (2) using an integrated, whole building design approach, and (3) incorporating systems-built housing, a green jobs training program, and renewable energy technologies into a replicable high performance, low-income housing project development model.

  16. Texas Field Experiment Results: Performance of the Weatherization Assistance Program in Hot-Climate, Low-Income Homes

    SciTech Connect (OSTI)

    McCold, Lance Neil [ORNL; Goeltz, Rick [ORNL; Ternes, Mark P [ORNL; Berry, Linda G [ORNL

    2008-04-01T23:59:59.000Z

    A field test involving 35 houses was performed in Texas between 2000 and 2003 to study the response of low-income homes in hot climates to weatherization performed as part of the U.S Department of Energy Weatherization Assistance Program and to investigate certain methods to improve weatherization performance. The study found that improved Program designs and the use of advanced energy audits resulted in better weatherization measures being installed (use of blower doors to guide the infiltration work, more frequent installation of attic insulation, and installation of wall insulation) in the study homes, improved space-heating savings performance compared to the Program as implemented in the hot climates in 1989, and more comfortable indoor temperatures. Two key policy dilemmas for Texas and other hot-climate states were highlighted by the study; namely, how to balance expenditures between installing cost-effective weatherization measures and performing health, safety, and repair items, and that health, safety, and repair items can have an adverse impact on energy savings, which further complicates the weatherization decision process. Several occupant and equipment-related behaviors were observed in the field test homes that help explain why audits may over predict energy consumptions and savings and why air-conditioning electricity savings are difficult to measure. Based on this study, it is recommended that states in hot climates be encouraged to select from an expanded list of measures using advanced audits or other techniques, and further studies examining the benefits obtained from air conditioner measures should be performed. In addition, guidelines should be developed for the hot-climate states on how to (a) balance the objectives of saving energy, improving health and safety, and addressing repair issues, and (b) select repair items.

  17. Influence of Substrate on Crystallization in Polythiophene/fullerene Blends

    SciTech Connect (OSTI)

    C He; D Germack; J Kline; D Delongchamp; D Fischer; C Snyder; M Toney; J Kushmerick; L Richter

    2011-12-31T23:59:59.000Z

    The nanoscale morphology of the active layer in organic, bulk heterojunction (BHJ) solar cells is crucial to device performance. Often a combination of casting conditions and post deposition thermal treatment is used to optimize the morphology. In general, the development of microscopic crystals is deleterious, as the exciton diffusion length is {approx}10 nm. We find that the microscopic crystallization behavior in polythiophene/fullerene blends is strongly influenced by the substrate on which the BHJ is cast. With a silicon oxide substrate, the crystal nucleation density is high and significant crystallization occurs at a temperature of 140 C. On more hydrophobic substrates, significantly higher temperatures are required for observable crystallization. This difference is attributed to the interfacial segregation of the PCBM, controlled by the substrate surface energy. The substrate dependence of crystallization has significant implications on the fullerene crystal growth mechanisms and practical implications for device studies.

  18. Influence of geometry on natural convection in buildings

    SciTech Connect (OSTI)

    White, M.D.; Winn, C.B.; Jones, G.F.; Balcomb, J.D.

    1985-01-01T23:59:59.000Z

    Strong free convection airflows occur within passive solar buildings resulting from elevated temperatures of surfaces irradiated by solar energy compared with the cooler surfaces not receiving radiation. The geometry of a building has a large influence on the directions and magnitudes of natural airflows, and thus heat transfer between zones. This investigation has utilized a variety of reduced-scale building configurations to study the effects of geometry on natural convection heat transfer. Similarity between the reduced-scale model and a full-scale passive solar building is achieved by having similar geometries and by replacing air with Freon-12 gas as the model's working fluid. Filling the model with Freon-12 gas results in similarity in Prandtl numbers and Rayleigh numbers based on temperature differences in the range from 10/sup 9/ to 10/sup 11/. Results from four geometries are described with an emphasis placed on the effects of heat loss on zone temperature stratification shifts.

  19. Micro--universes and ``strong black holes'': a purely geometric approach to elementary particles

    E-Print Network [OSTI]

    E. Recami; F. Raciti; W. A. Rodrigues Jr.; V. T. Zanchin

    1995-09-04T23:59:59.000Z

    We present here a panoramic view of our unified, bi--scale theory of gravitational and strong interactions [which is mathematically analogous to the last version of N.Rosen's bi--metric theory; and yields physical results similar to strong gravity's]. This theory, developed during the last 15 years, is purely geometrical in nature, adopting the methods of General Relativity for the description of hadron structure and strong interactions. In particular, hadrons are associated with `` strong black--holes'', from the external point of view, and with ``micro--universes'', from the internal point of view. Among the results herein presented, let us mention the derivation: (i) of confinement and (ii) asymptotic freedom for the hadron constituents; (iii) of the Yukawa behaviour for the strong potential at the static limit; (iv) of the strong coupling ``constant'', and (v) of mesonic mass spectra.

  20. Income Protection (IP) Insurance

    E-Print Network [OSTI]

    Stokes, Kenneth; Barnaby, G. A. Art; Waller, Mark L.; Outlaw, Joe

    1999-06-09T23:59:59.000Z

    insurance program available only for grain sorghum in all Texas counties and wheat in selected Kansas counties. How IP Works? The IP dollar guarantee per acre is calculated by multiplying the approved APH yield times the projected price times the selected...-99 *Professor and Extension Economist, The Texas A&M University System; Extension Agricultural Economist, Kansas State University Agricultural Experiment Station and Cooperative Extension Service; Professor and Extension Economist, The Texas A&M University...

  1. Low Income Workgroup

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, 2014 PNGC, 711 Halsey Street,

  2. Low-Income Weatherization

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHigh SchoolIn12electron 9November 6, 2014 PNGC,

  3. Low Income Efficiency

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of Science (SC)Integrated Codes |IsLove Your Home and It'll Love You Back Love Your Home

  4. Probing strong-field gravity and black holes with gravitational waves

    E-Print Network [OSTI]

    Hughes, Scott A.

    Gravitational wave observations will be excellent tools for making precise measurements of processes that occur in very strong- field regions of space time. Extreme mass

  5. A thin film model for corotational Jeffreys fluids under strong slip

    E-Print Network [OSTI]

    A. Münch; B. Wagner; M. Rauscher; R. Blossey

    2006-05-14T23:59:59.000Z

    We derive a thin film model for viscoelastic liquids under strong slip which obey the stress tensor dynamics of corotational Jeffreys fluids.

  6. Reply to Comment on "Modified Coulomb Law in a Strongly Magnetized Vacuum"

    E-Print Network [OSTI]

    A. E. Shabad; V. V. Usov

    2007-10-30T23:59:59.000Z

    This is a reply to the Comment by S.-Y. Wang concerning our paper "Modified Coulomb Law in a Strongly Magnetized Vacuum"

  7. UR Transition is a pre-orientation program designed for incoming freshmen students with a documented disability. Acceptance in the UR Transition is limited to a small cohort of students in this program pilot. CETL

    E-Print Network [OSTI]

    Cantlon, Jessica F.

    UR Transition is a pre-orientation program designed for incoming freshmen students with a documented disability. Acceptance in the UR Transition. Personal statement of interest in UR Transition: (Share what you hope to gain

  8. UR Transition is a pre-orientation program designed for incoming freshmen students with a documented disability. Acceptance in the UR Transition is limited to a small cohort of students in this program pilot. CETL

    E-Print Network [OSTI]

    Mahon, Bradford Z.

    UR Transition is a pre-orientation program designed for incoming freshmen students with a documented disability. Acceptance in the UR Transition is limited advised, no programming for siblings is available during UR Transition) Personal

  9. The role that Carbon Conversations, as a model of deliberative workshops, can play in increasing carbon literacy with a group of low-income social housing tenants living in Glasgow 

    E-Print Network [OSTI]

    Fifield, Shivali

    2014-10-13T23:59:59.000Z

    This paper considers the role that Carbon Conversations, as an example of deliberative workshops, can play in increasing carbon literacy among a group of low-income social housing tenants living in Glasgow. With some adaptations, Carbon...

  10. Stray thermal influences in zinc fixed-point cells

    SciTech Connect (OSTI)

    Rudtsch, S.; Aulich, A.; Monte, C. [Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany)] [Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany)

    2013-09-11T23:59:59.000Z

    The influence of thermal effects is a major uncertainty contribution to the calibration of Standard Platinum Resistance Thermometers (SPRTs) in fixed-point cells. Axial heat losses strongly depend on the fixed-point temperature, constructional details of cells and SPRTs and the resulting heat transfer between cell, thermometer, furnace and environment. At the zinc point contributions by heat conduction and thermal radiation must be considered. Although the measurement of temperature gradients in the re-entrant well of a fixed-point cell provides very important information about the influence of axial heat losses, further investigations are required for a reliable estimate of the resulting uncertainty contribution. It is shown that specific modifications of a zinc fixed-point cell, following generally accepted principles, may result in systematic deviations of the measured fixed-point temperatures larger than typically stated in the uncertainty budget of National Metrology Institutes (NMIs). The underlying heat transport processes are investigated and the consequences for the construction of zinc cells are discussed.

  11. Dynamic surface topography influences cell function

    E-Print Network [OSTI]

    Kiang, Jennifer Deng

    2012-01-01T23:59:59.000Z

    A) Relative surface topography of hydrogel over a wire (B)oscillating surface topography on cell morphology. In FigureSAN DIEGO Dynamic Surface Topography Influences Cell

  12. Strain selection, biomass to biofuel conversion, and resource colocation have strong impacts on the economic performance of algae cultivation sites

    SciTech Connect (OSTI)

    Venteris, Erik R.; Wigmosta, Mark S.; Coleman, Andre M.; Skaggs, Richard

    2014-09-16T23:59:59.000Z

    Decisions involving strain selection, biomass to biofuel technology, and the location of cultivation facilities can strongly influence the economic viability of an algae-based biofuel enterprise. In this contribution we summarize our past results in a new analysis to explore the relative economic impact of these design choices. We present strain-specific growth model results from two saline strains (Nannocloropsis salina, Arthrospira sp.), a fresh to brackish strain (Chlorella sp., DOE strain 1412), and a freshwater strain of the order Sphaeropleales. Biomass to biofuel conversion is compared between lipid extraction (LE) and hydrothermal liquefaction (HTL) technologies. National-scale models of water, CO2 (as flue gas), land acquisition, site leveling, construction of connecting roads, and transport of HTL oil to existing refineries are used in conjunction with estimates of fuel value (from HTL) to prioritize and select from 88,692 unit farms (UF, 405 ha in pond area), a number sufficient to produce 136E+9 L yr-1 of renewable diesel (36 billion gallons yr-1, BGY). Strain selection and choice of conversion technology have large economic impacts, with differences between combinations of strains and biomass to biofuel technologies being up to $10 million dollars yr-1 UF-1. Results based on the most productive species, HTL-based fuel conversion, and resource costs show that the economic potential between geographic locations within the selection can differ by up to $4 million yr-1 UF-1, with 2.0 BGY of production possible from the most cost-effective sites. The local spatial variability in site rank is extreme, with very high and low rank sites within 10s of km of each other. Colocation with flue gas sources has a strong influence on site rank, but the most costly resource component varies from site to site. The highest rank sites are located predominantly in Florida and Texas, but most states south of 37°N latitude contain promising locations. Keywords: algae, biofuels, resource assessment, geographic information systems, techno-economics

  13. Interplay between Strong Coupling and Radiative Damping of Excitons and Surface Plasmon

    E-Print Network [OSTI]

    Peinke, Joachim

    Interplay between Strong Coupling and Radiative Damping of Excitons and Surface Plasmon Polaritons damping of strongly coupled excitons (Xs) and surface plasmon polaritons (SPPs) in a hybrid system made in coherent active plasmonics. Keywords : exciton-plasmon coupling; molecular aggregates; metallic

  14. Strong and Pareto Price of Anarchy in Congestion Games Steve Chien

    E-Print Network [OSTI]

    Sinclair, Alistair

    their strategies so as to improve all of their costs. The strong price of anarchy (see, e.g., [3]) is the ratioStrong and Pareto Price of Anarchy in Congestion Games Steve Chien Alistair Sinclair§ September 21 games, focusing on the relationships between the price of anarchy for these equilibria

  15. Strong and uniform equivalence of nonmonotonic theories --an algebraic Miroslaw Truszczynski

    E-Print Network [OSTI]

    Truszczynski, Miroslaw

    Strong and uniform equivalence of nonmonotonic theories -- an algebraic approach Miroslaw Truszczy We show that the concepts of strong and uniform equivalence of logic programs can be generalized and uniform equivalence for sev- eral nonmonotonic logics including logic programming with aggregates, default

  16. Interaction of gravitational waves with strongly magnetized plasmas Heinz Isliker,1,* Ingmar Sandberg,2

    E-Print Network [OSTI]

    Isliker, Heinz

    by the plasma from the GW and in the kind of plasma waves excited by the GW, and we focus on the case of veryInteraction of gravitational waves with strongly magnetized plasmas Heinz Isliker,1,* Ingmar of a gravitational wave (GW) with a plasma that is strongly magnetized. The GW is considered a small disturbance

  17. Set systems without a strong simplex (revised) Tao Jiang # Oleg Pikhurko + Zelealem Yilma #

    E-Print Network [OSTI]

    Pikhurko, Oleg

    Set systems without a strong simplex (revised) Tao Jiang # Oleg Pikhurko + Zelealem Yilma # April 21, 2010 Abstract A d­simplex is a collection of d + 1 sets such that every d of them have non­empty intersection and the intersection of all of them is empty. A strong d­simplex is a collection of d + 2 sets A

  18. Wave-current interaction in strongly sheared mean flows Zhifei Dong and James T. Kirby

    E-Print Network [OSTI]

    Kirby, James T.

    Wave-current interaction in strongly sheared mean flows Zhifei Dong and James T. Kirby Center@udel.edu Abstract We describe a framework for wave-current interaction theory for small-amplitude surface gravity waves propagating on the strongly sheared mean flows. Using a multiple-scale perturbation method, we

  19. String and the Strong Force Summary/Review Lecture 9: Spring 2009 Compton Lecture Series

    E-Print Network [OSTI]

    String and the Strong Force Summary/Review Lecture 9: Spring 2009 Compton Lecture Series: From and then in order of decreasing likelihood. ­ By contrast, in the strong force, quantum chromodynamics (QCD complicated array. If you try to draw the interaction of a quark and an anti-quark, you wind up

  20. Strong enhancement of light absorption and highly directive thermal emission in graphene

    E-Print Network [OSTI]

    Chen, Po

    Strong enhancement of light absorption and highly directive thermal emission in graphene Mingbo Pu: Graphene is a two-dimensional material with exotic electronic, optical and thermal properties. The optical absorption in monolayer graphene is limited by the fine structure constant . Here we demonstrated the strong

  1. Time-dependent variational approach to molecules in strong laser fields

    E-Print Network [OSTI]

    Gross, E.K.U.

    . Owing to their ultra-short duration, femtosecond pulses allow for the direct observation of chemicalTime-dependent variational approach to molecules in strong laser fields Thomas Kreibich a , Robert in strong laser fields using an ansatz for the wavefunction that explicitly incorporates the electron

  2. Generation of strong mesoscale eddies by weak ocean gyres by Michael A. Spall1

    E-Print Network [OSTI]

    Generation of strong mesoscale eddies by weak ocean gyres by Michael A. Spall1 ABSTRACT The generation of strong mesoscale variability through instability of the large-scale circulation in the interior with the scaling theory. 1. Introduction It is now well recognized that the kinetic energy of the mesoscale

  3. Strong orientational effect of stretched aerogel on the 3 He order parameter

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Strong orientational effect of stretched aerogel on the 3 He order parameter J. Elbs, Yu. M. Bunkov (Dated: February 18, 2013) Deformation of aerogel strongly modifies the orientation of the order parameter of superfluid 3 He confined in aerogel. We used a radial squeezing of aerogel to keep the orbital

  4. Optical properties and modulation characteristics of ultra-strong injection-locked distributed feedback lasers

    E-Print Network [OSTI]

    Sung, Hyuk-Kee; Lau, Erwin K.; Wu, Ming C.

    2007-01-01T23:59:59.000Z

    of Ultra-Strong Injection-Locked Distributed Feedback LasersUltra-high, 72 GHz resonance fre- quency and 44 GHz bandwidth of injection-locked 1.55-µm DFB lasers,”ultra-strong optical injection. The dynamic response of the slave laser

  5. Strong Coupling Expansion in a Correlated Three-Dimensional Topological Insulator

    E-Print Network [OSTI]

    Akihiko Sekine; Takashi Z. Nakano; Yasufumi Araki; Kentaro Nomura

    2013-04-11T23:59:59.000Z

    Motivated by recent studies which show that topological phases may emerge in strongly correlated electron systems, we theoretically study the strong electron correlation effect in a three-dimensional topological insulator, which effective Hamiltonian can be described by the Wilson fermions. We adopt 1/r long-range Coulomb interaction as the interaction between the bulk electrons. Based on the U(1) lattice gauge theory, the strong coupling expansion is applied by assuming that the effective interaction is strong. It is shown that the effect of the Coulomb interaction is equivalent to the renormalization of the bare mass of the Wilson fermions, and that as a result, the topological insulator phase survives in the strong coupling limit.

  6. 7, 80878111, 2007 Influence of cloud top

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 7, 8087­8111, 2007 Influence of cloud top variability on radiative transfer Richter, Barfus top variability from radar measurements on 3-D radiative transfer F. Richter 1 , K. Barfus 1 , F. H.richter@awi.de) 8087 #12;ACPD 7, 8087­8111, 2007 Influence of cloud top variability on radiative transfer Richter

  7. influences on climate. For instance, some suggestthatchangesinsolarirradi-

    E-Print Network [OSTI]

    Chater, Nick

    influences on climate. For instance, some studies5,6 suggestthatchangesinsolarirradi- ance may have on clouds, or of variations in solar or volcanic influences). At the least, they argue, this should be the case provided that the climate feedbacks of the missing process or forcing are close to linear

  8. Assessing the Influence of the MJO on Strong Precipitation Events in Subtropical, Semi-Arid North-Central Chile (30°S)

    E-Print Network [OSTI]

    Juliá , Cristó bal; Rahn, David A.; Rutllant, José A.

    2012-10-01T23:59:59.000Z

    circulation and Chilean winter precipitation. J. Climate, 25, 1678–1688. Becker, E. J., E. H. Berbery, and R. W. Higgins, 2011: Modulation of cold-season U.S. daily precipitation by the Madden–Julian oscillation. J. Climate, 24, 5157–5166. Carrasco, J. F...- arid climates, precipitation is concentrated in fall and winter (April–September) with large interannual variabil- ity (Fig. 2). Large annual precipitation tends to coincide with the development of a warm event of the El Nin˜o– Southern Oscillation...

  9. Theory of attosecond transient absorption spectroscopy of strong-field-generated ions

    SciTech Connect (OSTI)

    Santra, Robin [Center for Free-Electron Laser Science, DESY, Notkestrasse 85, D-22607 Hamburg (Germany); Department of Physics, University of Hamburg, Jungiusstrasse 9, D-20355 Hamburg (Germany); Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106 (United States); Yakovlev, Vladislav S. [Department fuer Physik, Ludwig-Maximilians-Universitaet, Am Coulombwall 1, D-85748 Garching (Germany); Max-Planck-Institut fuer Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching (Germany); Pfeifer, Thomas [Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, D-69117 Heidelberg (Germany); Loh, Zhi-Heng [Departments of Chemistry and Physics, University of California, Berkeley, California 94720 (United States); Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

    2011-03-15T23:59:59.000Z

    Strong-field ionization generally produces ions in a superposition of ionic eigenstates. This superposition is generally not fully coherent and must be described in terms of a density matrix. A recent experiment [E. Goulielmakis et al., Nature (London) 466, 739 (2010)] employed attosecond transient absorption spectroscopy to determine the density matrix of strong-field-generated Kr{sup +} ions. The experimentally observed degree of coherence of the strong-field-generated Kr{sup +} ions is well reproduced by a recently developed multichannel strong-field-ionization theory, but there is significant disagreement between experiment and theory with respect to the degree of alignment of the Kr{sup +} ions. In the present paper, the theory underlying attosecond transient absorption spectroscopy of strong-field-generated ions is developed. The theory is formulated in such a way that the nonperturbative nature of the strong-field-ionization process is systematically taken into account. The impact of attosecond pulse propagation effects on the interpretation of experimental data is investigated both analytically and numerically. It is shown that attosecond pulse propagation effects cannot explain why the experimentally determined degree of alignment of strong-field-generated Kr{sup +} ions is much smaller than predicted by existing theory.

  10. Impact of Wind Development on County-Level Income and Employment: A Review of Methods and an Empirical Analysis (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01T23:59:59.000Z

    To gain an understanding of the long-term county-level impacts from a large sample of wind power projects and to understand the potential significance of methodological criticisms, the U.S. Department of Agriculture, the Lawrence Berkeley National Laboratory, and NREL recently joined efforts to complete a first-of-its-kind study that quantifies the annual impact on county-level personal income resulting from wind power installations in nearly 130 counties across 12 states. The results of this study, as well as a comparison with the prior county-level estimates generated from input-output models, are summarized here.

  11. An analysis of selected indicators of levels of living for farm families and rural non-farm families in an East Texas low income area

    E-Print Network [OSTI]

    Earley, Herbert R

    1961-01-01T23:59:59.000Z

    Items Possessed by t~ Insome gurul Hunfsea aug Ferns RsmQiss in Horthesst Tonus. ~. . . 4, Hnmber of Level of Living items Possesseg ty High Income Hural Hoofs Suf&ar. n Fsmi1ise of Hs~ Teens. ~ ~ . ~ 5, ~ of Level of Living Items Possesseg by Lou...)or ~ of oo ~ has ~ Mith tho Xovals of living an5 the change@ that, ooeu ia the levels of Riving of fexu mg rural aon-fare people. AL~ progress in farm prcChotiwitp has bean aohienIcL Sn ~ dumog the past teen@ pearse there axe arena oontainiag thouaaccts...

  12. Effective super Tonks-Girardeau gases as ground states of strongly attractive multicomponent fermions

    SciTech Connect (OSTI)

    Yin Xiangguo; Chen Shu [Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Guan Xiwen [Department of Theoretical Physics, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Batchelor, M. T. [Department of Theoretical Physics, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200 (Australia); Mathematical Sciences Institute, Australian National University, Canberra ACT 0200 (Australia)

    2011-01-15T23:59:59.000Z

    In the strong interaction limit, attractive fermions with N-component hyperfine states in a one-dimensional waveguide form unbreakable bound cluster states. We demonstrate that the ground state of strongly attractive SU(N) Fermi gases can be effectively described by a super Tonks-Girardeau gaslike state composed of bosonic cluster states with strongly attractive cluster-cluster interaction for even N and a Fermi duality of a super Tonks-Girardeau gaslike state composed of fermionic cluster states with weakly interacting cluster-cluster p-wave interaction for odd N.

  13. Dense strongly coupled plasma in double laser pulse ablation of lithium: Experiment and simulation

    SciTech Connect (OSTI)

    Kumar, Ajai; Sivakumaran, V.; Ganesh, R.; Joshi, H. C. [Institute for Plasma Research, Bhat, Gandhinagar-382428 (India)] [Institute for Plasma Research, Bhat, Gandhinagar-382428 (India); Ashwin, J. [Weizmann Institute of Science, Rehovot - 76100 (Israel)] [Weizmann Institute of Science, Rehovot - 76100 (Israel)

    2013-08-15T23:59:59.000Z

    In a simple method of low power nano-second double pulsed laser ablation experiment in collinear geometry, formation of high density strongly coupled plasma is demonstrated. Using time-resolved measurements of the Stark broadened line width and line intensity ratio of the emission lines, the density and temperature of the plasma were estimated respectively. In this experiment, it is shown that ions are strongly coupled (ion-ion coupling parameter comes out to be >4). For comparison, both single and double pulsed laser ablations are presented. For the estimated experimental plasma parameters, first principle Langevin dynamics simulation corroborates the existence of a strongly coupled regime.

  14. Dimension reduction for anisotropic Bose-Einstein condensates in the strong interaction regime

    E-Print Network [OSTI]

    Weizhu Bao; Loic Le Treust; Florian Mehats

    2014-03-12T23:59:59.000Z

    We study the problem of dimension reduction for the three dimensional Gross-Pitaevskii equation (GPE) describing a Bose-Einstein condensate confined in a strongly anisotropic harmonic trap. Since the gas is assumed to be in a strong interaction regime, we have to analyze two combined singular limits: a semi-classical limit in the transport direction and the strong partial confinement limit in the transversal direction. We prove that both limits commute together and we provide convergence rates. The by-products of this work are approximated models in reduced dimension for the GPE, with a priori estimates of the approximation errors.

  15. Plasmon decay to a neutrino pair via neutrino electromagnetic moments in a strongly magnetized medium

    E-Print Network [OSTI]

    A. V. Borisov; P. E. Sizin

    2014-06-12T23:59:59.000Z

    We calculate the neutrino luminosity of a degenerate electron gas in a strong magnetic field via plasmon decay to a neutrino pair due to neutrino electromagnetic moments and obtain the relative upper bounds on the effective neutrino magnetic moment.

  16. ARTICLE Communicated by Carl van Vreeswijk Dynamics of Strongly Coupled Spiking Neurons

    E-Print Network [OSTI]

    Bressloff, Paul C

    -and-fire neurons with strong synaptic coupling. We show how phase-locked states that are stable in the weak network with a mixture of excitation and inhibition is shown to exhibit periodic bursting patterns

  17. DOE Zero Energy Ready Home Going Green and Building Strong: Building...

    Office of Environmental Management (EM)

    2 Webinar (Text Version) DOE Zero Energy Ready Home Going Green and Building Strong: Building a FORTIFIED Home -- Part 2 Webinar (Text Version) Below is the text version of the...

  18. Spinodal instabilities and the distillation effect in nuclear matter under strong magnetic fields

    E-Print Network [OSTI]

    A. Rabhi; C. Providencia; J. Da Providencia

    2008-11-19T23:59:59.000Z

    We study the effect of strong magnetic fields, of the order of $10^{18}$-$10^{19}$ G, on the instability region of nuclear matter at subsaturation densities. Relativistic nuclear models both with constant couplings and with density dependent parameters are considered. It is shown that a strong magnetic field can have large effects on the instability regions giving rise to bands of instability and wider unstable regions. As a consequence we predict larger transition densities at the inner edge of the crust of compact stars with strong magnetic field. The direction of instability gives rise to a very strong distillation effect if the last Landau level is only partially filled. However, for almost completed Landau levels an anti-distillation effect may occur.

  19. Imaging the invisible : constraining dark matter distributions in galaxy clusters using strong gravitational lensing

    E-Print Network [OSTI]

    Corless, Virginia Leigh

    2005-01-01T23:59:59.000Z

    In this thesis, I design and construct a Monte-Carlo gravitational lensing simulation that statistically studies the strong lensing of extended galactic sources by dark matter distributions in galaxy clusters, using recent ...

  20. The structure of strongly additive states and Markov triplets on the CAR algebra

    E-Print Network [OSTI]

    Anna Jencova

    2010-08-05T23:59:59.000Z

    We find a characterization of states satisfying equality in strong subadditivity of entropy and of Markov triplets on the CAR algebra. For even states, a more detailed structure of the density matrix is given.

  1. Robust Distributed Routing in Dynamical Networks - Part II: Strong Resilience, Equilibrium Selection and Cascaded Failures

    E-Print Network [OSTI]

    Como, Giacomo

    Strong resilience properties of dynamical networks are analyzed for distributed routing policies. The latter are characterized by the property that the way the outflow at a non-destination node gets split among its outgoing ...

  2. Solid state cavity QED : practical applications of strong coupling of light and matter

    E-Print Network [OSTI]

    Tischler, Jonathan Randall, 1977-

    2007-01-01T23:59:59.000Z

    J-aggregates of cyanine dyes are the excitonic materials of choice for realizing polariton devices that operate in strong coupling at room temperature. Since the earliest days of cavity QED, there has been a major desire ...

  3. Strongly interacting Fermi gases : non-equilibrium dynamics and dimensional crossover

    E-Print Network [OSTI]

    Sommer, Ariel T. (Ariel Tjodolv)

    2013-01-01T23:59:59.000Z

    Experiments using ultracold atomic gases address fundamental problems in many-body physics. This thesis describes experiments on strongly-interacting gases of fermionic atoms, with a focus on non-equilibrium physics and ...

  4. Stability of Multinode Dirac Semimetals against Strong Long-Range Correlations

    E-Print Network [OSTI]

    Akihiko Sekine; Kentaro Nomura

    2014-08-22T23:59:59.000Z

    We study the stability of Dirac semimetals with $N$ nodes in three spatial dimensions against strong $1/r$ Coulomb interactions. We particularly study the cases of $N=4$ and $N=16$, where the $N=4$ Dirac semimetal is described by the staggered fermions and the $N=16$ Dirac semimetal is described by the doubled lattice fermions. We take into account the $1/r$ long-range Coulomb interactions between the bulk electrons. Based on the U(1) lattice gauge theory, we analyze the system from the strong coupling limit. It is shown that the Dirac semimetals survive in the strong coupling limit when the out-of-plane Fermi velocity anisotropy of the Dirac cones is weak, whereas they change to Mott insulators when the anisotropy is strong. A Possible global phase diagram of correlated multinode Dirac semimetals is presented. Implications of our result to the stability of Weyl semimetals and three-dimensional topological insulators are discussed.

  5. PHYSICAL REVIEW C 80, 014611 (2009) Nuclear fusion reaction rates for strongly coupled ionic mixtures

    E-Print Network [OSTI]

    in ordinary stars proceed in the so-called classical thermonuclear regime in which ions (atomic nuclei]. They are the thermonuclear regime with strong plasma screening, the intermediate thermo- pycnonuclear regime, the thermally

  6. Talking with NPCs: Towards Dynamic Generation of Discourse Structures Christina R. Strong and Michael Mateas

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Talking with NPCs: Towards Dynamic Generation of Discourse Structures Christina R. Strong generating dialogue structures, that is, dynamically generating dialogue FSMs or trees (more generally a formalization of backstory, character infor- mation, and social interactions to dynamically generate interactive

  7. Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality

    E-Print Network [OSTI]

    Adams, Allan

    Strongly correlated quantum fluids are phases of matter that are intrinsically quantum mechanical and that do not have a simple description in terms of weakly interacting quasiparticles. Two systems that have recently ...

  8. Ultrafast photon-photon interaction in a strongly coupled quantum dot-cavity system

    E-Print Network [OSTI]

    Dirk Englund; Arka Majumdar; Michal Bajcsy; Andrei Faraon; Pierre Petroff; Jelena vuckovic

    2011-07-14T23:59:59.000Z

    We study dynamics of the interaction between two weak light beams mediated by a strongly coupled quantum dot-photonic crystal cavity system. First, we perform all optical switching of a weak continuous-wave signal with a pulsed control beam, and then perform switching between two pulsed beams (40ps pulses) at the single photon level. Our results show that the quantum dot-nanocavity system creates strong, controllable interactions at the single photon level.

  9. Time delay in strong-field photoionization of a hydrogen atom

    SciTech Connect (OSTI)

    Ivanov, I. A. [Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200 (Australia)

    2011-02-15T23:59:59.000Z

    We study time delay for the process of photoionization of a hydrogen atom in a strong electromagnetic field. We compute this quantity by solving the time-dependent Schroedinger equation. We show that even a moderately strong field can have quite a considerable effect on the time delay. Analysis of the wave-packet motion performed by means of the Gabor transform shows that a simple semiclassical model can explain this phenomenon.

  10. Generalized strong curvature singularities and weak cosmic censorship in cosmological space-times

    E-Print Network [OSTI]

    W. Rudnicki; R. J. Budzynski; W. Kondracki

    2006-06-01T23:59:59.000Z

    This paper is a further development of the approach to weak cosmic censorship proposed by the authors in Ref. 5. We state and prove a modified version of that work's main result under significantly relaxed assumptions on the asymptotic structure of space--time. The result, which imposes strong constraints on the occurrence of naked singularities of the strong curvature type, is in particular applicable to physically realistic cosmological models.

  11. AdS/CFT and Light-Front Holography: A Theory of Strong Interactions

    SciTech Connect (OSTI)

    Brodsky, Stanley J.; /SLAC; Teramond, Guy F.de; /Costa Rica U.

    2009-02-23T23:59:59.000Z

    Recent developments in the theory of strong interactions are discussed in the framework of the AdS/CFT duality between string theories of gravity in a higher dimension Anti-de Sitter space and conformal quantum field theories in physical space-time. This novel theoretical approach, combined with 'light-front holography', leads to new insights into the quark and gluon structure of hadrons and a viable first approximation to quantum chromodynamics, the fundamental theory of the strong and nuclear interactions.

  12. Energy efficient low-income housing demonstration with Houston Habitat for Humanity. Final status report, October 1, 1995--September 30, 1997

    SciTech Connect (OSTI)

    NONE

    1997-09-30T23:59:59.000Z

    Using DOE grant funds, the Alliance to Save Energy developed and managed an award-winning low-income housing demonstration in cooperation with Houston Habitat for Humanity at the 1996 and 1997 annual NAHB Builders Show in Houston, Texas. Using a unique group of over 30 national, state and local partners, the energy design of Houston Habitat houses was permanently upgraded to the Energy Star Homes Program threshold. Meeting Energy Star Homes Program criteria, the partner design team increased the level of efficiency approximately 30% over the 1992 Model Energy Code. This innovative design using commercially available materials added approximately $1,400 in cost-effective energy upgrades with an estimated payback of less than 8 years. The 30 public-private partners successfully demonstrated energy and resource efficient housing techniques to the 65,000 NAHB home show attendees and the over 3,000 Habitat affiliates. This project resulted in the Houston Habitat affiliate becoming the nation`s first low-income Energy Star Homes Program home builder. By the year 2000, Houston Habitat anticipates building over 500 homes to this new level of efficiency as well as set an example for other Habitat affiliates nationwide to follow. The 1997 demonstration house utilized an all-women volunteer builders team to construct a 3 bedroom home in Houston Habitat`s Woodglen Subdivision. Energy consumption was remotely metered by Texas A and M.

  13. Looking past the first year: Do the savings last?. A study of the persistence of energy savings in low-income Wisconsin residences, final report

    SciTech Connect (OSTI)

    Narum, D.; Pigg, S.; Schlegel, J.

    1992-09-01T23:59:59.000Z

    Wisconsin Energy Conservation Corporation (WECC) conducted a Study of the Persistence of Energy Savings in Low-Income Wisconsin Residences for the Department of Energy`s (DOE) Existing Buildings Efficiency Program. The study assessed the persistence of energy savings resulting from participation in the Wisconsin Utility Weatherization Assistance Program (UWAP). The study assessed the impact of weatherization and heating system measures up to eight years after the installation of energy conservation measures (ECMS) in low-income, gas-heated residences, the majority of which are 1- and 2-unit buildings. Primary data for the study came from two utilities, Wisconsin Gas Company and Madison Gas & Electric Company. Both utilities provided WECC with their weatherization program databases, which contained participant information back to 1982. WECC also obtained fuel consumption information for the program participants from each utility. The consumption histories spanned a 6-year period from March 1985 through May 1991 for Wisconsin Gas Company participants, and a 5-year period from October 1986 through August 1991 for Madison Gas & Electric Company participants. After attrition, the study included 5,129 customers from the Wisconsin Gas Company program and 1,553 customers from the Madison Gas & Electric Company program.

  14. Effects of obliqueness and strong electrostatic interaction on linear and nonlinear propagation of dust-acoustic waves in a magnetized strongly coupled dusty plasma

    SciTech Connect (OSTI)

    Shahmansouri, M. [Department of Physics, Faculty of Science, Arak University, Arak 38156- 8 8349 (Iran, Islamic Republic of)] [Department of Physics, Faculty of Science, Arak University, Arak 38156- 8 8349 (Iran, Islamic Republic of); Mamun, A. A. [Department of Physics, Jahangirnagar University, Savar, Dhaka-1342 (Bangladesh)] [Department of Physics, Jahangirnagar University, Savar, Dhaka-1342 (Bangladesh)

    2014-03-15T23:59:59.000Z

    Linear and nonlinear propagation of dust-acoustic waves in a magnetized strongly coupled dusty plasma is theoretically investigated. The normal mode analysis (reductive perturbation method) is employed to investigate the role of ambient/external magnetic field, obliqueness, and effective electrostatic dust-temperature in modifying the properties of linear (nonlinear) dust-acoustic waves propagating in such a strongly coupled dusty plasma. The effective electrostatic dust-temperature, which arises from strong electrostatic interactions among highly charged dust, is considered as a dynamical variable. The linear dispersion relation (describing the linear propagation characteristics) for the obliquely propagating dust-acoustic waves is derived and analyzed. On the other hand, the Korteweg-de Vries equation describing the nonlinear propagation of the dust-acoustic waves (particularly, propagation of dust-acoustic solitary waves) is derived and solved. It is shown that the combined effects of obliqueness, magnitude of the ambient/external magnetic field, and effective electrostatic dust-temperature significantly modify the basic properties of linear and nonlinear dust-acoustic waves. The results of this work are compared with those observed by some laboratory experiments.

  15. Comparison of Strong Gravitational Lens Model Software II. HydraLens: Computer-Assisted Strong Gravitational Lens Model Generation and Translation

    E-Print Network [OSTI]

    Lefor, Alsn T

    2015-01-01T23:59:59.000Z

    The behavior of strong gravitational lens model software in the analysis of lens models is not necessarily consistent among the various software available, suggesting that the use of several models may enhance the understanding of the system being studied. Among the publicly available codes, the model input files are heterogeneous, making the creation of multiple models tedious. An enhanced method of creating model files and a method to easily create multiple models, may increase the number of comparison studies. HydraLens simplifies the creation of model files for four strong gravitational lens model software packages, including Lenstool, Gravlens/Lensmodel, glafic and PixeLens, using a custom designed GUI for each of the four codes that simplifies the entry of the model for each of these codes, obviating the need for user manuals to set the values of the many flags and in each data field. HydraLens is designed in a modular fashion, which simplifies the addition of other strong gravitational lens codes in th...

  16. How Do We Know that Human Activities Have Influenced Global Climate?

    SciTech Connect (OSTI)

    Santer, Benjamin D.

    2007-11-05T23:59:59.000Z

    Human activities have significantly altered not only the chemical composition of Earth's atmosphere, but also the climate system. Human influences have led to increases in well-mixed greenhouse gases, decreases in stratospheric ozone, and changes in the atmospheric burdens of sulfate and soot aerosols. All of these atmospheric constituents interact with incoming solar and outgoing terrestrial radiation. Human-induced changes in the concentrations of these constituents modify the natural radiative balance of Earth's atmosphere, and therefore perturb climate. Quantifying the size of the human effect on climate is a difficult statistical problem. 'Fingerprint' methods are typically used for this purpose. These methods involve rigorous statistical comparisons of modeled and observed climate change patterns. Fingerprinting assumes that each individual influence on climate has a unique signature in climate records. The climate fingerprints in response to different forcing factors are typically estimated with computer models, which can be used to perform the controlled experiments that we cannot conduct in the real world. One criticism of the findings of previous scientific assessments is that they have relied heavily on fingerprint studies involving changes in near-surface temperature. Recent fingerprint work, however, has considered a variety of other climate variables, such as ocean heat content, stratospheric temperatures, Northern Hemisphere sea ice extent, sea level pressure, atmospheric water vapor, and the height of the tropopause. These studies illustrate that a human-induced climate change signal is identifiable in many different variables and geographic regions, and that the climate system is telling us an internally- and physically-consistent story.

  17. How Do We Know That Human Activities Have Influenced Global Climate?

    SciTech Connect (OSTI)

    Dr. Benjamin D. Santer

    2007-11-05T23:59:59.000Z

    Human activities have significantly altered not only the chemical composition of Earth's atmosphere, but also the climate system. Human influences have led to increases in well-mixed greenhouse gases, decreases in stratospheric ozone, and changes in the atmospheric burdens of sulfate and soot aerosols. All of these atmospheric constituents interact with incoming solar and outgoing terrestrial radiation. Human-induced changes in the concentrations of these constituents modify the natural radiative balance of Earth's atmosphere, and therefore perturb climate. Quantifying the size of the human effect on climate is a difficult statistical problem. "Fingerprint" methods are typically used for this purpose. These methods involve rigorous statistical comparisons of modeled and observed climate change patterns. Fingerprinting assumes that each individual influence on climate has a unique signature in climate records. The climate fingerprints in response to different forcing factors are typically estimated with computer models, which can be used to perform the controlled experiments that we cannot conduct in the real world. One criticism of the findings of previous scientific assessments is that they have relied heavily on fingerprint studies involving changes in near-surface temperature. Recent fingerprint work, however, has considered a variety of other climate variables, such as ocean heat content, stratospheric temperatures, Northern Hemisphere sea ice extent, sea level pressure, atmospheric water vapor, and the height of the tropopause. These studies illustrate that a human-induced climate change signal is identifiable in many different variables and geographic regions, and that the climate system is telling us an internally- and physically-consistent story.

  18. Can Eutrophication Influence Nitrogen vs. Phosphorus Limitation?

    E-Print Network [OSTI]

    Vallino, Joseph J.

    Can Eutrophication Influence Nitrogen vs. Phosphorus Limitation? George Gregory Bates College, originating largely from septic systems and fertilizers, have caused significant eutrophication in freshwater nitrogen and phosphorus grew the highest concentration of phytoplankton, but eutrophic ponds grew a mean

  19. Influence strategies for systems of systems

    E-Print Network [OSTI]

    Shah, Nirav Bharat, 1979-

    2013-01-01T23:59:59.000Z

    Distributed decision making has been identified as a source of managerial complexity for leaders of systems of systems (SoS). A new framework, AIR (Anticipation-Influence-Reaction), is proposed to capture the feedback ...

  20. Microbially influenced corrosion in sour environments

    E-Print Network [OSTI]

    Li, Kwan (Kwan Hon)

    2014-01-01T23:59:59.000Z

    Microbially influenced corrosion (MIC) is a costly and poorly understood source of corrosion that plagues many modern industrial processes such as oil extraction and transportation. Throughout the years, many possible ...