National Library of Energy BETA

Sample records for long-run growth path

  1. The Very Long Run Economic Growth

    E-Print Network [OSTI]

    Wu, Lemin

    2013-01-01

    the stochastic growth of technology as the source of inter-2000. “Population, technology, and growth: From Malthusianhas constant growth rates of technology g A and g B , then g

  2. The Very Long Run Economic Growth

    E-Print Network [OSTI]

    Wu, Lemin

    2013-01-01

    Growth before the Industrial Revolution. ” Journal of Law2001. “ Was an Industrial Revolution Inevitable? EconomicThe British Industrial Revolution in Global Perspective. ”

  3. Long-run growth rate in a random multiplicative model

    SciTech Connect (OSTI)

    Pirjol, Dan [Institute for Physics and Nuclear Engineering, 077125 Bucharest (Romania)

    2014-08-01

    We consider the long-run growth rate of the average value of a random multiplicative process x{sub i+1} = a{sub i}x{sub i} where the multipliers a{sub i}=1+?exp(?W{sub i}?1/2 ?²t{sub i}) have Markovian dependence given by the exponential of a standard Brownian motion W{sub i}. The average value (x{sub n}) is given by the grand partition function of a one-dimensional lattice gas with two-body linear attractive interactions placed in a uniform field. We study the Lyapunov exponent ?=lim{sub n??}1/n log(x{sub n}), at fixed ?=1/2 ?²t{sub n}n, and show that it is given by the equation of state of the lattice gas in thermodynamical equilibrium. The Lyapunov exponent has discontinuous partial derivatives along a curve in the (?, ?) plane ending at a critical point (?{sub C}, ?{sub C}) which is related to a phase transition in the equivalent lattice gas. Using the equivalence of the lattice gas with a bosonic system, we obtain the exact solution for the equation of state in the thermodynamical limit n ? ?.

  4. Can we predict long-run economic growth?

    E-Print Network [OSTI]

    Garrett, Timothy J

    2012-01-01

    For those concerned with the long-term value of their accounts, it can be a challenge to plan in the present for inflation-adjusted economic growth over coming decades. Here, I argue that there exists an economic constant that carries through time, and that this can help us to anticipate the more distant future: global economic wealth has a fixed link to civilization's overall rate of energy consumption from all sources; the ratio of these two quantities has not changed over the past 40 years that statistics are available. Power production and wealth rise equally quickly because civilization, like any other system in the universe, must consume and dissipate its energy reserves in order to sustain its current size. One perspective might be that financial wealth must ultimately collapse as we deplete our energy reserves. However, we can also expect that highly aggregated quantities like global wealth have inertia, and that growth rates must persist. Exceptionally rapid innovation in the two decades following 19...

  5. Long-Run Growth in Open Economies: Export-Led Cumulative Causation or

    E-Print Network [OSTI]

    Carlini, David

    Long-Run Growth in Open Economies: Export-Led Cumulative Causation or a Balance. On the one hand, models of export-led cumulative causation (ELCC) stress the possibility that some countries competitiveness, rising exports, and rapid output growth (although, in this view, other countries may be doomed

  6. Inequality and Economic Growth: Bridging the Short-run and the Long-run

    E-Print Network [OSTI]

    Grijalva, Diego F.

    2011-01-01

    with the work of Kuznets (1955, 1963), many distinctof Economic Studies, 1956, Kuznets, Simon, “Economic GrowthAmerican Economic Review, Kuznets, Simon, “Quantitative

  7. Long run changes in driver behavior due to variable tolls 

    E-Print Network [OSTI]

    Konduru, Karun K.

    2004-09-30

    As many variable pricing projects are still in the implementation stage, long-run driver responses to the variable tolls are largely unknown. This research examined the long-run changes in driver behavior in an existing ...

  8. Analysis of Long-Running Replicated Systems Sriram Ramabhadran

    E-Print Network [OSTI]

    Pasquale, Joseph

    Analysis of Long-Running Replicated Systems Sriram Ramabhadran Dept. of Computer Science & Engineering University of California, San Diego sriram@cs.ucsd.edu Joseph Pasquale Dept. of Computer Science

  9. The long-run evolution of energy prices

    E-Print Network [OSTI]

    Pindyck, Robert S.

    1999-01-01

    I examine the long-run behavior of oil, coal, and natural gas prices, using up to 127 years of data, and address the following questions: What does over a century of data tell us about the stochastic dynamics of price ...

  10. Recent program evaluations: Implications for long-run planning

    SciTech Connect (OSTI)

    Baxter, L.W.; Schultz, D.K.

    1994-06-08

    Demand-side management (DSM) remains the centerpiece of California`s energy policy. Over the coming decade, California plans to meet 30 percent of the state`s incremental electricity demand and 50 percent of its peak demand with (DSM) programs. The major investor-owned utilities in California recently completed the first round of program impact studies for energy efficiency programs implemented in 1990 and 1991. The central focus of this paper is to assess the resource planning and policy implications of Pacific Gas and Electric (PG&E) Company`s recent program evaluations. The paper has three goals. First, we identify and discuss major issues that surfaced from our attempt to apply evaluation results to forecasting and planning questions. Second, we review and summarize the evaluation results for PG&E`s primary energy efficiency programs. Third, we change long-run program assumptions, based on our assessment in the second task, and then examine the impacts of these changes on a recent PG&E demand-side management forecast and resource plan.

  11. Proactive Service Migration for Long-Running Byzantine Fault Tolerant Systems Wenbing Zhao and Honglei Zhang

    E-Print Network [OSTI]

    Zhao, Wenbing

    Proactive Service Migration for Long-Running Byzantine Fault Tolerant Systems Wenbing Zhao scheme based on service migration for long-running Byzantine fault tolerant systems. Proactive recovery threats from malicious adversaries. The primary benefit of our proactive recovery scheme is a reduced

  12. An empirical study of long-run impact of Internet advertising on consumer response behavior

    E-Print Network [OSTI]

    Kannan, Raghavan

    2006-01-01

    The long-run effect of banner advertisements is among the most complex topic in the internet world. Media spending on online marketing has grown from $3 billion in 1999 to $9 billion in 2004. Forecasts (Jupiter Research ...

  13. Explaining Long-Run Changes in the Energy Intensity of the U.S. Economy

    E-Print Network [OSTI]

    Sue Wing, Ian.

    Recent events have revived interest in explaining the long-run changes in the energy intensity of the U.S. economy. We use a KLEM dataset for 35 industries over 39 years to decompose changes in the aggregate energy-GDP ...

  14. Long Run Purchasing Power Parity: Cassel or Balassa-Samuelson? David H. Papell and Ruxandra Prodan

    E-Print Network [OSTI]

    Sadoulet, Elisabeth

    Long Run Purchasing Power Parity: Cassel or Balassa-Samuelson? David H. Papell and Ruxandra Prodan countries to investigate two alternative versions of Purchasing Power Parity (PPP): reversion to a constant (713) 743-3798, email: dpapell@mail.uh.edu #12;1 1. Introduction Purchasing Power Parity (PPP) is one

  15. Long-run evolution of the global economy - Part 2: Hindcasts of innovation and growth

    E-Print Network [OSTI]

    Garrett, Timothy J

    2016-01-01

    Long-range climate forecasts use integrated assessment models to link the global economy to greenhouse gas emissions. This paper evaluates an alternative economic framework outlined in part 1 of this study (Garrett, 2014) that approaches the global economy using purely physical principles rather than explicitly resolved societal dynamics. If this model is initialized with economic data from the 1950s, it yields hindcasts for how fast global economic production and energy consumption grew between 2000 and 2010 with skill scores > 90 % relative to a model of persistence in trends. The model appears to attain high skill partly because there was a strong impulse of discovery of fossil fuel energy reserves in the mid-twentieth century that helped civilization to grow rapidly as a deterministic physical response. Forecasting the coming century may prove more of a challenge because the effect of the energy impulse appears to have nearly run its course. Nonetheless, an understanding of the external forces that drive ...

  16. Long-run growth rate in a random multiplicative model (Journal Article) |

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy ofArticle) | SciTechPrinciples and(TechnicalSimultaneous In

  17. The Long Run Impact of Biofuels on Food Prices Ujjayant Chakravorty, Marie-Hlne Hubert, Michel Moreaux and Linda Nstbakken1

    E-Print Network [OSTI]

    Schweik, Charles M.

    The Long Run Impact of Biofuels on Food Prices by Ujjayant Chakravorty, Marie-Hélène Hubert, Michel Moreaux and Linda Nøstbakken1 Abstract More than 40% of US corn is now used to produce biofuels, which are used as substitutes for gasoline in transportation. Biofuels have been blamed universally for recent

  18. Reallocating innovative resources around growth bottlenecks

    E-Print Network [OSTI]

    Bresnahan, Timothy

    Economy-wide increasing returns to scale embodied in a general purpose technology (GPT) and its applications are often a key source of long-run growth. Yet the successful exploitation of increasing returns calls for ...

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

    E-Print Network [OSTI]

    Mohaddes, Kamiar; Raissi, Mehdi

    2011-12-08

    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...

  20. Key role of the wetting layer in revealing the hidden path of Ge/Si(001) Stranski-Krastanow growth onset

    SciTech Connect (OSTI)

    Brehm, Moritz; Grydlik, Martyna; Lichtenberger, Herbert; Hrauda, Nina; Fromherz, Thomas; Schaeffler, Friedrich; Bauer, Guenther [Institute of Semiconductor and Solid State Physics, Johannes Kepler University, A-4040 Linz (Austria); Montalenti, Francesco; Vastola, Guglielmo; Miglio, Leo [L-NESS and Materials Science Department, University of Milano-Bicocca, I-20125 Milano (Italy); Beck, Matthew J. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)

    2009-11-15

    The commonly accepted Stranski-Krastanow model, according to which island formation occurs on top of a wetting layer (WL) of a certain thickness, predicts for the morphological evolution an increasing island aspect ratio with volume. We report on an apparent violation of this thermodynamic understanding of island growth with deposition. In order to investigate the actual onset of three-dimensional islanding and the critical WL thickness in the Ge/Si(001) system, a key issue is controlling the Ge deposition with extremely high resolution [0.025 monolayer (ML)]. Atomic force microscopy and photoluminescence measurements on samples covering the deposition range 1.75-6.1 ML, taken along a Ge deposition gradient on 4 in. Si substrates and at different growth temperatures (T{sub g}), surprisingly reveal that for T{sub g}>675 deg. C steeper multifaceted domes apparently nucleate prior to shallow (105)-faceted pyramids, in a narrow commonly overlooked deposition range. The puzzling experimental findings are explained by a quantitative modeling of the total energy with deposition. We accurately matched ab initio calculations of layer and surface energies to finite-element method simulations of the elastic energy in islands, in order to compare the thermodynamic stability of different island shapes with respect to an increasing WL thickness. Close agreement between modeling and experiments is found, pointing out that the sizeable progressive lowering of the surface energy in the first few MLs of the WL reverts the common understanding of the SK growth onset. Strong similarities between islanding in SiGe and III/V systems are highlighted.

  1. Path Coupling and Aggregate Path Coupling

    E-Print Network [OSTI]

    Kovchegov, Yevgeniy

    2015-01-01

    In this survey paper, we describe and characterize an extension to the classical path coupling method applied statistical mechanical models, referred to as aggregate path coupling. In conjunction with large deviations estimates, we use this aggregate path coupling method to prove rapid mixing of Glauber dynamics for a large class of statistical mechanical models, including models that exhibit discontinuous phase transitions which have traditionally been more difficult to analyze rigorously. The parameter region for rapid mixing for the generalized Curie-Weiss-Potts model is derived as a new application of the aggregate path coupling method.

  2. Path Coupling and Aggregate Path Coupling

    E-Print Network [OSTI]

    Yevgeniy Kovchegov; Peter T. Otto

    2015-01-13

    In this survey paper, we describe and characterize an extension to the classical path coupling method applied statistical mechanical models, referred to as aggregate path coupling. In conjunction with large deviations estimates, we use this aggregate path coupling method to prove rapid mixing of Glauber dynamics for a large class of statistical mechanical models, including models that exhibit discontinuous phase transitions which have traditionally been more difficult to analyze rigorously. The parameter region for rapid mixing for the generalized Curie-Weiss-Potts model is derived as a new application of the aggregate path coupling method.

  3. The universal path integral

    E-Print Network [OSTI]

    Seth Lloyd; Olaf Dreyer

    2013-02-12

    Path integrals represent a powerful route to quantization: they calculate probabilities by summing over classical configurations of variables such as fields, assigning each configuration a phase equal to the action of that configuration. This paper defines a universal path integral, which sums over all computable structures. This path integral contains as sub-integrals all possible computable path integrals, including those of field theory, the standard model of elementary particles, discrete models of quantum gravity, string theory, etc. The universal path integral possesses a well-defined measure that guarantees its finiteness, together with a method for extracting probabilities for observable quantities. The universal path integral supports a quantum theory of the universe in which the world that we see around us arises out of the interference between all computable structures.

  4. Tortuous path chemical preconcentrator

    DOE Patents [OSTI]

    Manginell, Ronald P. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM); Adkins, Douglas R. (Albuquerque, NM); Wheeler, David R. (Albuquerque, NM); Simonson, Robert J. (Cedar Crest, NM)

    2010-09-21

    A non-planar, tortuous path chemical preconcentrator has a high internal surface area having a heatable sorptive coating that can be used to selectively collect and concentrate one or more chemical species of interest from a fluid stream that can be rapidly released as a concentrated plug into an analytical or microanalytical chain for separation and detection. The non-planar chemical preconcentrator comprises a sorptive support structure having a tortuous flow path. The tortuosity provides repeated twists, turns, and bends to the flow, thereby increasing the interfacial contact between sample fluid stream and the sorptive material. The tortuous path also provides more opportunities for desorption and readsorption of volatile species. Further, the thermal efficiency of the tortuous path chemical preconcentrator is comparable or superior to the prior non-planar chemical preconcentrator. Finally, the tortuosity can be varied in different directions to optimize flow rates during the adsorption and desorption phases of operation of the preconcentrator.

  5. Counting paths in digraphs

    SciTech Connect (OSTI)

    Sullivan, Blair D; Seymour, Dr. Paul Douglas

    2010-01-01

    Say a digraph is k-free if it has no directed cycles of length at most k, for k {element_of} Z{sup +}. Thomasse conjectured that the number of induced 3-vertex directed paths in a simple 2-free digraph on n vertices is at most (n-1)n(n+1)/15. We present an unpublished result of Bondy proving there are at most 2n{sup 3}/25 such paths, and prove that for the class of circular interval digraphs, an upper bound of n{sup 3}/16 holds. We also study the problem of bounding the number of (non-induced) 4-vertex paths in 3-free digraphs. We show an upper bound of 4n{sup 4}/75 using Bondy's result for Thomasse's conjecture.

  6. Path Integral for Quantum Operations

    E-Print Network [OSTI]

    Vasily E. Tarasov

    2007-06-14

    In this paper we consider a phase space path integral for general time-dependent quantum operations, not necessarily unitary. We obtain the path integral for a completely positive quantum operation satisfied Lindblad equation (quantum Markovian master equation). We consider the path integral for quantum operation with a simple infinitesimal generator.

  7. Flight Path 12

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

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  8. Flight Path 12

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES OctoberEvanServices »First ObservationFast This flight path

  9. Flight Path 5

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path 05

  10. Flight Path Target 2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path90L2

  11. Office of Fossil Energy Continues Long-Running Minority Educational...

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

    University of Texas at El Paso (El Paso, Texas)-The high-temperature environments of AUSC coal-fired boilers and steam and gas turbines require corrosion-resistant coatings with...

  12. Top Incomes in the Long Run of History

    E-Print Network [OSTI]

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

    2012-01-01

    in top income shares in Finland,” Atkinson, A. B. and T.Singapore Argentina Sweden Finland Norway Share of top 0.1U/L-shaped),1900- 2006 Sweden Finland Norway Spain Portugal

  13. Finding Eldorado: Slavery and Long-run Development in Colombia

    E-Print Network [OSTI]

    Acemoglu, Daron

    2012-06-12

    Slavery has been a major institution of labor coercion throughout history. Colonial societies used slavery intensively across the Americas, and slavery remained prevalent in most countries after independence from the ...

  14. Top Incomes in the Long Run of History

    E-Print Network [OSTI]

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

    2012-01-01

    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

  15. Top Incomes in the Long Run of History

    E-Print Network [OSTI]

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

    2012-01-01

    in Germany 1850– 1913: the Kuznets hypothesis re-examined. ”Leamington Spa, 187–236. Kuznets, Simon (1953). Shares ofof Economic Research. Kuznets, Simon (1955). “Economic

  16. CSEM WP 133 The Long-Run Effects of

    E-Print Network [OSTI]

    California at Berkeley. University of

    This paper is part of the Center for the Study of Energy Markets (CSEM) Working Paper Series. CSEM: Retail real-time pricing (RTP) of electricity -- retail pricing that changes hourly to reflect adopting RTP in a competitive electricity market. Using simple simulations, I demonstrate

  17. Short & long run transmission incentives for generation location

    E-Print Network [OSTI]

    Turvey, Ralph

    2006-01-01

    This paper is about one aspect of Britain's electricity trading system, its advantages and its weaknesses concerning the incentives it provides or fails to provide for the location of generation. (Similar considerations ...

  18. DOE Continues Long-Running Minority Educational Research Program |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pState Efficiency,Energy Newssuccessfully completed

  19. Office of Fossil Energy Continues Long-Running Minority Educational

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -DepartmentAvailableHigh SpatialElectricityLeads,Research Program |

  20. Spatial association between the locations of roots and water flow paths in highly structured soil 

    E-Print Network [OSTI]

    Gardiner, Nathan Thomas

    2005-02-17

    relative to the location of water flow paths is important in understanding how plants obtain nutrients and water for growth, and it would also be of considerable importance in phytoremediation research and research into the prevention of groundwater...

  1. 221A Lecture Notes Path Integral

    E-Print Network [OSTI]

    Murayama, Hitoshi

    221A Lecture Notes Path Integral 1 Feynman's Path Integral Formulation Feynman's formulation to reach a position xf at time tf , you integrate over all possible paths connecting the points with a weight factor given by the classical action for each path. Hence the name path integral. This is it. Note

  2. Initial Studies Toward Real-Time Transmission Path Rating

    SciTech Connect (OSTI)

    Singh, Ruchi; Diao, Ruisheng; Cai, Niannian; Huang, Zhenyu; Tuck, Brian; Guo, Xinxin

    2012-07-26

    Demand continues to increase while transmission line construction is being constrained by multiple factors— economic, environmental, and political. Effective and efficient utilization of transmission lines is thus of great importance in an open access environment. Large blocks of power are transferred from areas with inexpensive generation to heavy load demand areas or areas with high generation costs. This results in some transmission paths being loaded closer to their path ratings, which limits further power transfer between areas. Traditionally, rating of important paths was determined off line by assuming the worst-case study scenario; once determined, it could be used for years. With increasing uncertainty arising from rapid growth of renewable energy and smart technologies, path rating studies are needed in near-real time to account for the latest system status and support a reliable and economic power grid. This paper adopts a simplified procedure based on standards of the North American Electric Reliability Corporation (NERC) to determine total transfer capability (TTC) or transfer limit for the purpose of demonstrating the benefits and necessity of real-time path rating. Initial studies are conducted to compute TTC of a two-area test system and a 39-bus test system. Results indicate that path rating can be significantly affected by loading conditions, generator schedules, system topology and other factors.

  3. Hydrogen Education Curriculum Path at Michigan Technological...

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

    Curriculum Path at Michigan Technological University Hydrogen Education Curriculum Path at Michigan Technological University 2009 DOE Hydrogen Program and Vehicle Technologies...

  4. COMPUTER SCIENCE: MISCONCEPTIONS, CAREER PATHS

    E-Print Network [OSTI]

    Hristidis, Vagelis

    COMPUTER SCIENCE: MISCONCEPTIONS, CAREER PATHS AND RESEARCH CHALLENGES School of Computing Undergraduate Student) #12;Computer Science Misconceptions Intro to Computer Science - Florida International University 2 Some preconceived ideas & stereotypes about Computer Science (CS) are quite common

  5. Collaborative Authoring of Walden's Paths 

    E-Print Network [OSTI]

    Li, Yuanling

    2012-10-19

    The World Wide Web contains rich collections of digital materials that can be used in education and learning settings. The collaborative authoring prototype of Walden's Paths targets two groups of users: educators and ...

  6. Shortest Path Algorithm What is the Shortest Path Problem?

    E-Print Network [OSTI]

    Razak, Saquib

    .getNumberOfVertices(); Entry table[] = new Entry[n]; for(int v = 0; v new Entry(); table;What is the shortest path problem? · In an edge-weighted graph, the weight of an edge measures the cost represent: distance, cost or time. · Such a graph could be used to answer any of the following: ­ What

  7. Autonomous Ground Vehicle Path Planning for Autocross Tracks: Optimal vs an Efficient Bézier Curve Path

    E-Print Network [OSTI]

    Ash, John Patrick

    2015-01-01

    to Computationally Efficient Method . . . . . Minimizing theTracks: Optimal vs an Efficient B´ ezier Curve Path MASTERproposes a computationally efficient path planning algorithm

  8. PathScale Compliers at NERSC

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

    1-800-66-NERSC, option 3 or 510-486-8611 Home For Users Software Compilers PathScale PathScale Compilers (Fortran, C, C++) Availability The Pathscale...

  9. Neutrino Mean Free Path in Neutron Star

    E-Print Network [OSTI]

    P. T. P. Hutauruk

    2010-07-22

    Have been calculated the differential cross section and mean free path of neutrino of neutrino interaction in dense matter.

  10. Improved Geothermometry Through Multivariate Reaction Path Modeling...

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

    Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators Improved Geothermometry...

  11. Path to High Efficiency Gasoline Engine | Department of Energy

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

    Path to High Efficiency Gasoline Engine Path to High Efficiency Gasoline Engine Path to High Efficiency Gasoline Engine deer10johansson.pdf More Documents & Publications Partially...

  12. Energy scarcity and economic growth reconsidered

    SciTech Connect (OSTI)

    Uri, N.D. [Economics Research Service, Washington, DC (United States). National Resources and Environment Div.

    1995-05-01

    This analysis is concerned with the effect of energy scarcity on economic growth in the US. After defining the notion of scarcity and introducing two measures of scarcity, namely unit costs and relative energy price, changes in the trend in resource scarcity are investigated for natural gas, bituminous coal, anthracite coal, and crude oil over the most recent three decades. Each of the energy resources became significantly more scarce during the decade of the 1970s in the Malthusian stock scarcity and Malthusian flow scarcity sense. Unit costs exhibit a similar change for natural gas and crude oil but not for bituminous coal and anthracite coal. The situation reversed itself during the 1980s. Natural gas, bituminous coal, anthracite coal, and crude oil all became significantly less scarce during the 1980s than the 1970s. That is, the increase in scarcity as measured by relative energy prices observed during the 1970s was not reversed completely during the 1980s for natural gas and crude oil. Unit costs for natural gas and crude oil demonstrate analogous patterns and test results. Given that change has take place, it has implications for future economic growth to the extent that resource scarcity and economic growth are interrelated. To see whether this is a relevant concern, subsequent to the examination of changing trends in resource scarcity, an objective effort is made to identify a long-run equilibrium relationship between energy scarcity and economic growth. Relying on cointegration techniques, only for crude oil is there a suggestion that resource scarcity has affected economic growth in the US over the period 1889--1992. 56 refs.

  13. Flight Path 60R - GEANIE

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path

  14. Flight Path 90L - TPC

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature photoTheory05 Target 1 Flight Path90L

  15. Path Profile Guided Partial Dead Code Elimination Using Predication \\Lambda

    E-Print Network [OSTI]

    Gupta, Rajiv

    executed paths by reduc­ ing their critical path lengths. The paper presents a cost­benefit data flow architectures since critical path lengths along frequently executed paths can be reduced through PDE [11, 6, 13 optimization moves in­ structions that are dead along critical paths off the critical paths [19, 22]. Modern

  16. Critical function and success path summary display

    DOE Patents [OSTI]

    Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

    1995-01-01

    The content of and hierarchical access to three levels of display pages containing information on critical function monitoring and success path monitoring.

  17. Personalized PageRank Solution Paths

    E-Print Network [OSTI]

    2015-04-13

    gorithms to estimate the solution path as a function of the sparsity and propose .... see shortly, we actually are describing degree normalized. PageRank values.

  18. Robust constrained shortest path problems under budgeted ...

    E-Print Network [OSTI]

    2014-09-12

    The shortest path problem with capacity constraint is denoted by CSP. Differently from the capacity constraint, time windows must be satisfied at each node ...

  19. Methodology for Augmenting Existing Paths with Additional Parallel Transects

    SciTech Connect (OSTI)

    Wilson, John E.

    2013-09-30

    Visual Sample Plan (VSP) is sample planning software that is used, among other purposes, to plan transect sampling paths to detect areas that were potentially used for munition training. This module was developed for application on a large site where existing roads and trails were to be used as primary sampling paths. Gap areas between these primary paths needed to found and covered with parallel transect paths. These gap areas represent areas on the site that are more than a specified distance from a primary path. These added parallel paths needed to optionally be connected together into a single path—the shortest path possible. The paths also needed to optionally be attached to existing primary paths, again with the shortest possible path. Finally, the process must be repeatable and predictable so that the same inputs (primary paths, specified distance, and path options) will result in the same set of new paths every time. This methodology was developed to meet those specifications.

  20. Multi-objective stochastic path planning 

    E-Print Network [OSTI]

    Dasgupta, Sumantra

    2009-05-15

    . Provide an O (V.E+C2) heuristic for generating Pareto optimal shortest paths in presence of multiple objectives where C is the upper bound for path length. The complexity can be further reduced to O (V.E) by using graphical read-out of the Pareto frontier...

  1. PARALLEL EVOLUTIONARY ALGORITHMS FOR UAV PATH PLANNING

    E-Print Network [OSTI]

    PARALLEL EVOLUTIONARY ALGORITHMS FOR UAV PATH PLANNING Dong Jia Post-Doctoral Research Associate vehicles (UAVs). Premature convergence prevents evolutionary-based algorithms from reaching global optimal. To overcome this problem, this paper presents a framework of parallel evolutionary algorithms for UAV path

  2. At-Speed Path Delay Test 

    E-Print Network [OSTI]

    Chakraborty, Swati

    2015-04-27

    This research describes an approach to test metastability of flip-flops with help of multiple at-speed capture cycles during delay test. K longest paths per flip-flop test patterns are generated, such that a long path on one clock cycle feeds a long...

  3. Visualization of Ant Pheromone Based Path Following 

    E-Print Network [OSTI]

    Sutherland, Benjamin T.

    2010-07-14

    This thesis develops a simulation and visualization of a path finding algorithm based on ant pheromone paths created in 3D space. The simulation is useful as a demonstration of a heuristic approach to NP-complete problems and as an educational tool...

  4. CALIFORNIA PATH PROGRAM INSTITUTE OF TRANSPORTATION STUDIES

    E-Print Network [OSTI]

    Agogino, Alice M.

    CALIFORNIA PATH PROGRAM INSTITUTE OF TRANSPORTATION STUDIES UNIVERFITY OF CALIFORNIA, BERKELEY,in cooperation with the State of California Business, Transportation, and Housing Agency, Department Agogino, Kai Goebel SatnamAlag University of California,Berkeley CaliforniaPATH Research Report UCB

  5. Critical Review of Path Integral Formulation

    E-Print Network [OSTI]

    Takehisa Fujita

    2008-01-13

    The path integral formulation in quantum mechanics corresponds to the first quantization since it is just to rewrite the quantum mechanical amplitude into many dimensional integrations over discretized coordinates $x_n$. However, the path integral expression cannot be connected to the dynamics of classical mechanics, even though, superficially, there is some similarity between them. Further, the field theory path integral in terms of many dimensional integrations over fields does not correspond to the field quantization. We clarify the essential difference between Feynman's original formulation of path integral in QED and the modern version of the path integral method prevailing in lattice field theory calculations, and show that the former can make a correct second quantization while the latter cannot quantize fields at all and its physical meaning is unknown.

  6. Path Integral Representations on the Complex Sphere

    E-Print Network [OSTI]

    Christian Grosche

    2007-10-23

    In this paper we discuss the path integral representations for the coordinate systems on the complex sphere S3C. The Schroedinger equation, respectively the path integral, separates in exactly 21 orthogonal coordinate systems. We enumerate these coordinate systems and we are able to present the path integral representations explicitly in the majority of the cases. In each solution the expansion into the wave-functions is stated. Also, the kernel and the corresponding Green function can be stated in closed form in terms of the invariant distance on the sphere, respectively on the hyperboloid.

  7. FACT SHEET: The Path Forward on Nuclear Waste Disposal | Department...

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

    FACT SHEET: The Path Forward on Nuclear Waste Disposal FACT SHEET: The Path Forward on Nuclear Waste Disposal FACT SHEET: The Path Forward on Nuclear Waste Disposal More Documents...

  8. Automatic Beam Path Analysis of Laser Wakefield Particle Acceleration Data

    E-Print Network [OSTI]

    Rubel, Oliver

    2010-01-01

    A. Hakim, R¨ bel et al. Automatic Beam Path Analysis of399, 1976. R¨ bel et al. Automatic Beam Path Analysis ofAutomatic Beam Path Analysis of Laser Wake?eld Particle

  9. Graphene-based battery electrodes having continuous flow paths...

    Office of Scientific and Technical Information (OSTI)

    Graphene-based battery electrodes having continuous flow paths Citation Details In-Document Search Title: Graphene-based battery electrodes having continuous flow paths Some...

  10. A CONSTRUCTION OF THE ROUGH PATH ABOVE FRACTIONAL ...

    E-Print Network [OSTI]

    2013-03-05

    Appl. 120 (2010) 1444–1472], where the construction of a rough path over B was first introduced. 1. Introduction. Rough paths analysis is a theory introduced by ...

  11. The Path to Transforming Knowledge into Energy Projects: DOE...

    Office of Environmental Management (EM)

    The Path to Transforming Knowledge into Energy Projects: DOE Tribal Renewable Energy Webinar Series 2015 The Path to Transforming Knowledge into Energy Projects: DOE Tribal...

  12. REGULAR PATHS IN SPARQL: QUERYING THE NCI THESAURUS

    E-Print Network [OSTI]

    Washington at Seattle, University of

    REGULAR PATHS IN SPARQL: QUERYING THE NCI THESAURUS University of Washington Structural Informatics path enhancements Examples NCI Thesaurus Widely used Exhibits common OWL representational patterns

  13. Shortest Paths, Network Design and Associated Polyhedra

    E-Print Network [OSTI]

    Magnanti, Thomas L.

    We study a specialized version of network design problems that arise in telecommunication, transportation and other industries. The problem, a generalization of the shortest path problem, is defined on an undirected network ...

  14. Steam Path Audits on Industrial Steam Turbines 

    E-Print Network [OSTI]

    Mitchell, D. R.

    1992-01-01

    on Industrial steam Turbines DOUGLAS R. MITCHELL. ENGINEER. ENCOTECH, INC., SCHENECTADY, NEW YORK ABSTRACT The electric utility industry has benefitted from steam path audits on steam turbines for several years. Benefits include the ability to identify... areas of performance degradation during a turbine outage. Repair priorities can then be set in accordance with quantitative results from the steam path audit. As a result of optimized repair decisions, turbine efficiency increases, emissions...

  15. Gas-path leakage seal for a gas turbine

    DOE Patents [OSTI]

    Wolfe, C.E.; Dinc, O.S.; Bagepalli, B.S.; Correia, V.H.; Aksit, M.F.

    1996-04-23

    A gas-path leakage seal is described for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a generally imperforate foil-layer assemblage which is generally impervious to gas and is located in the leakage-gap. The seal also includes a cloth-layer assemblage generally enclosingly contacting the foil-layer assemblage. In one seal, the first edge of the foil-layer assemblage is left exposed, and the foil-layer assemblage resiliently contacts the first member near the first edge to reduce leakage in the ``plane`` of the cloth-layer assemblage under conditions which include differential thermal growth of the two members. In another seal, such leakage is reduced by having a first weld-bead which permeates the cloth-layer assemblage, is attached to the metal-foil-layer assemblage near the first edge, and unattachedly contacts the first member. 4 figs.

  16. SIGNAL-PATH LEVEL ASSIGNMENT FOR DUAL-Vt TECHNIQUE

    E-Print Network [OSTI]

    Wang, Yu

    be assigned to some of the transistors in the non-critical paths and a lower Vt is assigned to other to get the critical paths and non-critical paths of the circuit much faster and with more accuracy. The gates in the critical paths will remain unchanged to maintain the performance; and the gates in the non-critical

  17. An Efficient Computation of Statistically Critical Sequential Paths Under Retiming

    E-Print Network [OSTI]

    Lim, Sung Kyu

    An Efficient Computation of Statistically Critical Sequential Paths Under Retiming Mongkol the statistically critical paths under retiming, which are the paths with a high probability of becoming timing- critical after retiming. SRTA enables the designers to perform circuit optimization on these paths

  18. Feynman's path integral and mutually unbiased bases

    E-Print Network [OSTI]

    J Tolar; G Chadzitaskos

    2009-08-05

    Our previous work on quantum mechanics in Hilbert spaces of finite dimensions N is applied to elucidate the deep meaning of Feynman's path integral pointed out by G. Svetlichny. He speculated that the secret of the Feynman path integral may lie in the property of mutual unbiasedness of temporally proximal bases. We confirm the corresponding property of the short-time propagator by using a specially devised N x N -approximation of quantum mechanics in L^2(R) applied to our finite-dimensional analogue of a free quantum particle.

  19. 1 Introduction The shortest augmenting path flow algorithm repeatedly finds a shortest augmenting path (A-path) in the residual

    E-Print Network [OSTI]

    California at Davis, University of

    -path, success if hits t, fail if backup to s last Advance(s); // move forward from s till get stuck at last in Gf . Advance(v) // moves towards t till gets stuck, or hits t cv v; // cv represents the current While (last = s, t) // stuck partway, so backup { v pred(last); relabel(last); // can't move forward

  20. Access Paths Multi-dimensional Index Structures

    E-Print Network [OSTI]

    Mannheim, Universität

    for result TID-lists) · high cost for intersection if one of the indexes deliverse many results · But') · index.find_key(`ZH1984') · Discussion: · cost equivalent to the cost of a one-dimensional access! KeyAccess Paths Multi-dimensional Index Structures 1Freitag, 4. Juni 2010 #12;September 27, 2007

  1. Clearance Based Path Optimization for Motion Planning

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Abstract Many motion planning techniques, like the probabilistic roadmap method (PRM), gen­ erate low] and humanoid robot planning [13]. A commonly used technique for planning paths is the Probabilistic Roadmap.1 Probabilistic Roadmap Method The probabilistic roadmap method consists of two phases: a construction and a query

  2. The Path to Disaster The Deepwater Horizon

    E-Print Network [OSTI]

    Pym, David J.

    was not disconnected · The escaping gas ignited · 11 dead · The drilling rig Deepwater Horizon sank after 2 days #1221/08/2013 1 The Path to Disaster The Deepwater Horizon BP's disaster in the Gulf of Mexico Industrial Psychology Research Centre 14th August, 2013 Transocean Deepwater Horizon #12;21/08/2013 2

  3. Protecting BGP from Invalid Paths Josh Karlin

    E-Print Network [OSTI]

    New Mexico, University of

    Protecting BGP from Invalid Paths Josh Karlin University of New Mexico karlinjf@cs.unm.edu Stephanie Forrest University of New Mexico Santa Fe Institute forrest@cs.unm.edu Jennifer Rexford Princeton University jrex@cs.princeton.edu ABSTRACT The Internet's interdomain routing protocol, BGP, is vul- nerable

  4. Clearance Based Path Optimization for Motion Planning

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Abstract Many motion planning techniques, like the probabilistic roadmap method (PRM), gen- erate low] and humanoid robot planning [13]. A commonly used technique for planning paths is the Probabilistic Roadmap. 1.1 Probabilistic Roadmap Method The probabilistic roadmap method consists of two phases

  5. Folded-path optical analysis gas cell

    DOE Patents [OSTI]

    Carangelo, R.M.; Wright, D.D.

    1995-08-08

    A folded-path gas cell employs an elliptical concave mirror in confronting relationship to two substantially spherical concave mirrors. At least one of the spherical mirrors, and usually both, are formed with an added cylindrical component to increase orthogonal foci coincidence and thereby to increase the radiation energy throughput characteristic of the cell. 10 figs.

  6. Folded-path optical analysis gas cell

    DOE Patents [OSTI]

    Carangelo, Robert M. (Glastonbury, CT); Wright, David D. (Vershire, VT)

    1995-01-01

    A folded-path gas cell employs an elliptical concave mirror in confronting relationship to two substantially spherical concave mirrors. At least one of the spherical mirrors, and usually both, are formed with an added cylindrical component to increase orthogonal focii coincidence and thereby to increase the radiation energy throughput characteristic of the cell.

  7. 1 Introduction The shortest augmenting path flow algorithm repeatedly finds a shortest augmenting path (A-path) in the residual

    E-Print Network [OSTI]

    California at Davis, University of

    -path, success if hits t, fail if backup to s last Advance(s); // move forward from s till get stuck at last of u in Gf . Advance(v) //moves towards t till gets stuck, or hits t cv v; // cv records the current While (last = s, t) // stuck partway, so backup { v pred(last); relabel(last); // can't move forward

  8. Experimental and numerical investigation of phonon mean free path distribution

    E-Print Network [OSTI]

    Zeng, Lingping

    2013-01-01

    Knowledge of phonon mean free path (MFP) distribution is critically important to engineering size effects. Phenomenological models of phonon relaxation times can give us some sense about the mean free path distribution, ...

  9. Working with Utilities: Effective Paths for Tribal Governments...

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

    Working with Utilities: Effective Paths for Tribal Governments Webinar Working with Utilities: Effective Paths for Tribal Governments Webinar September 30, 2015 11:00AM to 12:30PM...

  10. A Surprising Path for Proton Transfer Without Hydrogen Bonds

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

    A Surprising Path for Proton Transfer Without Hydrogen Bonds A Surprising Path for Proton Transfer Without Hydrogen Bonds Print Wednesday, 25 July 2012 00:00 Hydrogen bonds are...

  11. A Potential Path to Emissions-Free Fossil Energy | Department...

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

    A Potential Path to Emissions-Free Fossil Energy A Potential Path to Emissions-Free Fossil Energy August 20, 2013 - 10:00am Addthis The National Energy Technology Laboratory's...

  12. Surface-adaptive and Collision-avoiding Path Planning

    E-Print Network [OSTI]

    Morik, Katharina

    that a desired workpiece is generated by remov- ing material form the stock. The tool is moved by a milling machine which is computer-controlled. The task of automatic path planning is to find a suitable path

  13. The Path a Proton Takes Through a Fuel Cell Membrane

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

    The Path a Proton Takes Through a Fuel Cell Membrane The Path a Proton Takes Through a Fuel Cell Membrane October 11, 2012 Linda Vu, lvu@lbl.gov, +1 510 495 2402 Ram.jpg The cover...

  14. MOF Coating a Promising Path to White LEDs

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

    MOF Coating a Promising Path to White LEDs MOF Coating a Promising Path to White LEDs Print Friday, 27 February 2015 17:11 Hu et al. designed a new yellow phosphor with high...

  15. Software-based tool path evaluation for environmental sustainability

    E-Print Network [OSTI]

    KONG, DAEYOUNG; Seungchoun Choi; Yusuke Yasui; Sushrut Pavanaskar; Dornfeld, David; Wright, Paul

    2011-01-01

    productivity, while the sustainability and energy ef?ciencyof sustainability of a tool path (i.e. energy consumption

  16. FESAC Development Path Meeting Draft Agenda

    E-Print Network [OSTI]

    Facility (ST, Tokamak, GDT) - M. Peng 10:50 - 11:10 Discussion 11:10 - 11:45 3) First dry wall for IFE for Demo? MFE timing issues (licensing of CTF) Interaction with IFE ETF to Demo transition? (licensing in the IFE path - Wayne Meier HIF liquid walls Z pinches Dry walls 2:30 - 2:50 Discussion 2:50 - 3:00 Break 3

  17. Saving the Coherent State Path Integral

    E-Print Network [OSTI]

    Yariv Yanay; Erich J. Mueller

    2013-03-19

    By returning to the underlying discrete time formalism, we relate spurious results in coherent state path integral calculations to the high frequency structure of their propagators. We show how to modify the standard expressions for thermodynamic quantities to yield correct results. These expressions are relevant to a broad range of physical problems, from the thermodynamics of Bose lattice gases to the dynamics of spin systems.

  18. Free Energy Changes, Fluctuations, and Path Probabilities

    E-Print Network [OSTI]

    William G. Hoover; Carol G. Hoover

    2011-04-20

    We illustrate some of the static and dynamic relations discovered by Cohen, Crooks, Evans, Jarzynski, Kirkwood, Morriss, Searles, and Zwanzig. These relations link nonequilibrium processes to equilibrium isothermal free energy changes and to dynamical path probabilities. We include ideas suggested by Dellago, Geissler, Oberhofer, and Schoell-Paschinger. Our treatment is intended to be pedagogical, for use in an updated version of our book: Time Reversibility, Computer Simulation, and Chaos. Comments are very welcome.

  19. The lattice path operad Clemens Berger (Nice)

    E-Print Network [OSTI]

    Berger, Clemens

    -operads. Let (X, ) be a based topological space and (Sn, ) be the n-sphere. Then nX = Top(Sn, X) is an algebra operad O in E. Let EOu. Then HomOu(, X) is a CoendO()-algebra. 6 #12;E = Top or E = Ch(Z) contains SetsThe lattice path operad Clemens Berger (Nice) Third Arolla Conference on Algebraic Topology August

  20. "Multi-machine" Strategy: The Other Path of the FESAC

    E-Print Network [OSTI]

    "Multi-machine" Strategy: The Other Path of the FESAC Burning Plasma Strategy Gerald Navratil Difference ITER Development Path FIRE Development Path `Single Machine Strategy' `Multi-machine Strategy Machine Strategy' `Multi-machine Strategy' `One Step to DEMO' Modular Strategy `Penultimate Step to DEMO

  1. United States Department of Critical Path Method AppliedAgriculture

    E-Print Network [OSTI]

    Forest and Range Experiment Station PO. Box 245, Berkeley, California 94701 August 1986 #12;Critical Path interrelated activities. One approach that has been widely used is the critical path method, in which a network of thousands of activities, such as major construction and engineering projects. In the 1950's, a critical path

  2. Modeling the Global Critical Path in Concurrent Systems

    E-Print Network [OSTI]

    Modeling the Global Critical Path in Concurrent Systems Girish Venkataramani Tiberiu Chelcea Mihai Molecular Electronics, under contract number CCR0205523. #12;Keywords: Performance modeling, critical path analysis, high-level synthesis #12;Abstract We show how the global critical path can be used as a practical

  3. Computing Along the Critical Path Dean M. Tullsen Brad Calder

    E-Print Network [OSTI]

    Sair, Suleyman

    Computing Along the Critical Path Dean M. Tullsen Brad Calder Department of Computer Science dependencies that constrain execution speed constitute the critical path of execution. To optimize the performance of the processor, we either have to reduce the critical path or execute it more efficiently

  4. Capturing Post-Silicon Variations using a Representative Critical Path

    E-Print Network [OSTI]

    Sapatnekar, Sachin

    1 Capturing Post-Silicon Variations using a Representative Critical Path Qunzeng Liu and Sachin S on measurements on a replica of the nominal critical path, whose variations are intended to reflect those of the entire circuit after manufacturing. For realistic circuits, where the number of critical paths can

  5. Multipath channels Path timing critical (versus amplitude information)

    E-Print Network [OSTI]

    Southern California, University of

    1 · Multipath channels · Path timing critical (versus amplitude information) ­ Certain modulations: PPM ­ Location/Ranging · Model ­ Delay spread ­ L paths (M choose L possible profiles) ­ Independent path amplitudes ­ Block constant channel ­ AW GN 0 100 200 300 400 500 600 -0.02 0 0.02 The Channel

  6. Reconstructing Critical Paths from Execution Traces Martijn Hendriks

    E-Print Network [OSTI]

    Vaandrager, Frits

    Reconstructing Critical Paths from Execution Traces Martijn Hendriks Embedded Systems Institute of constructing critical paths from incomplete information. In general, a directed acyclic graph of tasks with their execution times (i.e., a task graph) is necessary to extract critical paths. We assume, however, that only

  7. Accurate Critical Path Analysis via Random Trace Construction

    E-Print Network [OSTI]

    Zilles, Craig

    Accurate Critical Path Analysis via Random Trace Construction Pierre Salverda Charles Tucker Craig to their profiled behavior. We demonstrate our technique in the context of critical path analysis, showing it can achieve the same accuracy as a hardware critical path predictor, but with lower hardware requirements. Key

  8. Robot Path Planning in Uncertain Environments: A Language-Measure-

    E-Print Network [OSTI]

    Ray, Asok

    Robot Path Planning in Uncertain Environments: A Language-Measure- Theoretic Approach Devesh K. Jha the problem of goal-directed robot path planning in the presence of uncertainties that are induced by bounded, probabilistic finite state automata 1 Motivation and Introduction In general, path planning of robots (e

  9. Automatic Construction of High Quality Roadmaps for Path Planning

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Automatic Construction of High Quality Roadmaps for Path Planning D.Nieuwenhuisen A.Kamphuis M-CS-2004-068 www.cs.uu.nl #12;Automatic Construction of High Quality Roadmaps for Path Planning D on a technique from robotics, that computes a roadmap of smooth, collision-free, high-quality paths. This roadmap

  10. UNIVERSITY OF CALIFORNIA, SAN DIEGO Critical-Path Aware Processor Architectures

    E-Print Network [OSTI]

    Sair, Suleyman

    UNIVERSITY OF CALIFORNIA, SAN DIEGO Critical-Path Aware Processor Architectures A dissertation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 C. Multithreading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 III Critical Path Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 A. General Critical-Path Analysis

  11. Quantum Mechanical Single Molecule Partition Function from Path Integral Monte Carlo Simulations

    E-Print Network [OSTI]

    Chempath, Shaji; Bell, Alexis T.; Predescu, Cristian

    2008-01-01

    calculated from path integral Monte Carlo(PIMC) and harmoniccalculated from path integral Monte Carlo (PIMC) andFunction from Path Integral Monte Carlo Simulations Shaji

  12. A path integral approach to data assimilation in stochastic nonlinear systems

    E-Print Network [OSTI]

    Quinn, John C.

    2010-01-01

    Values as Path Integrals . . . . . . . . . . .2.3Carlo Evaluation of Path Integrals . . . . . . . . . . . 3.1Sampling . . . . . . . . . . 3.2 Path Integral Monte Carlo

  13. A Path-Integral Approach to Bayesian Inference for Inverse Problems Using the Semiclassical Approximation

    E-Print Network [OSTI]

    Chang, JC; Savage, VM; Chou, T

    2014-01-01

    CC, Buice MA (2010) Path integral methods for stochastic di?2012) Quantum mechanics and path integrals: Emended edition.15. Graham R (1977) Path integral formulation of general di?

  14. LONG-RUN HEALTH IMPACTS OF INCOME SHOCKS: WINE AND PHYLLOXERA IN NINETEENTH-CENTURY FRANCE

    E-Print Network [OSTI]

    Banerjee, Abhijit

    Between 1863 and 1890, phylloxera destroyed 40% of French vineyards. Using the regional variation in the timing of this shock, we identify and examine the effects on adult height, health, and life expectancy of children ...

  15. Autonomous Garbage Collection: Resolve Memory Leaks In Long Running Server Applications

    E-Print Network [OSTI]

    was sponsored by the United States Air Force under Cooperative Agreements No. F30602-97-2-0250 and No. F30602-98-2

  16. Long-Run Behavior of Variational Integrators in the Stochastic Context

    E-Print Network [OSTI]

    Owhadi, Houman

    to inertial Langevin equations include Br¨unger-Brooks-Karplus (BBK) [5], van Gunsteren and Berendsen (vGB

  17. The Essentials of Preparing Cost Estimates Yielding Long-Run Profitability

    E-Print Network [OSTI]

    Khan, Sadia

    2010-05-14

    . With a combination of increased industry intelligence and feedback from the account managers FMC should re-align it’s costing and pricing with the rest of the subsea oil production equipment industry. Page 32 of 37 f. A good pricing strategy.... With a combination of increased industry intelligence and feedback from the account managers FMC should re-align it’s costing and pricing with the rest of the subsea oil production equipment industry. Page 32 of 37 f. A good pricing strategy...

  18. Non-Kyoto Radiative Forcing in Long-Run Greenhouse Gas Emissions and Climate Change Scenarios

    SciTech Connect (OSTI)

    Rose, Steven K.; Richels, Richard G.; Smith, Steven J.; Riahi, Keywan; Stefler, Jessica; Van Vuuren, Detlef

    2014-04-27

    Climate policies designed to achieve climate change objectives must consider radiative forcing from the Kyoto greenhouse gas, as well as other forcing constituents, such as aerosols and tropospheric ozone. Net positive forcing leads to global average temperature increases. Modeling of non-Kyoto forcing is a relatively new component of climate management scenarios. Five of the nineteen models in the EMF-27 Study model both Kyoto and non-Kyoto forcing. This paper describes and assesses current non-Kyoto radiative forcing modeling within these integrated assessment models. The study finds negative forcing from aerosols masking significant positive forcing in reference non-climate policy projections. There are however large differences across models in projected non-Kyoto emissions and forcing, with differences stemming from differences in relationships between Kyoto and non-Kyoto emissions and fundamental differences in modeling structure and assumptions. Air pollution and non-Kyoto forcing decline in the climate policy scenarios. However, non-Kyoto forcing appears to be influencing mitigation results, including allowable carbon dioxide emissions, and further evaluation is merited. Overall, there is substantial uncertainty related to non-Kyoto forcing that must be considered.

  19. Uncertainty and sensitivity analysis for long-running computer codes : a critical review

    E-Print Network [OSTI]

    Langewisch, Dustin R

    2010-01-01

    This thesis presents a critical review of existing methods for performing probabilistic uncertainty and sensitivity analysis for complex, computationally expensive simulation models. Uncertainty analysis (UA) methods ...

  20. The short- and long-run effects of the vector grocery store consumer price information program

    E-Print Network [OSTI]

    Boynton, Robert D.; Perloff, Jeffrey M

    1982-01-01

    more useful to consumers Hho differ from the average is toor specific item prices. People Hho find it di fficult to

  1. Improved initial guess for minimum energy path calculations

    SciTech Connect (OSTI)

    Smidstrup, Søren; Pedersen, Andreas; Stokbro, Kurt

    2014-06-07

    A method is presented for generating a good initial guess of a transition path between given initial and final states of a system without evaluation of the energy. An objective function surface is constructed using an interpolation of pairwise distances at each discretization point along the path and the nudged elastic band method then used to find an optimal path on this image dependent pair potential (IDPP) surface. This provides an initial path for the more computationally intensive calculations of a minimum energy path on an energy surface obtained, for example, by ab initio or density functional theory. The optimal path on the IDPP surface is significantly closer to a minimum energy path than a linear interpolation of the Cartesian coordinates and, therefore, reduces the number of iterations needed to reach convergence and averts divergence in the electronic structure calculations when atoms are brought too close to each other in the initial path. The method is illustrated with three examples: (1) rotation of a methyl group in an ethane molecule, (2) an exchange of atoms in an island on a crystal surface, and (3) an exchange of two Si-atoms in amorphous silicon. In all three cases, the computational effort in finding the minimum energy path with DFT was reduced by a factor ranging from 50% to an order of magnitude by using an IDPP path as the initial path. The time required for parallel computations was reduced even more because of load imbalance when linear interpolation of Cartesian coordinates was used.

  2. Two formation paths for cluster dwarf galaxies?

    E-Print Network [OSTI]

    Bianca M. Poggianti; Nobunari Kashikawa; Terry Bridges; Bahram Mobasher; Yutaka Komiyama; Dave Carter; Sadanori Okamura; Masafumi Yagi

    2003-10-15

    A surprising result of our recent spectroscopic survey of galaxies in the Coma cluster has been the discovery of a possible bimodal distribution in the metallicities of faint galaxies at $M_B>-17$. We identified a group of dwarfs with luminosity-weighted metallicities around solar and a group with [M/H] around -1.5. A metallicity bimodality among galaxies of similar luminosities is unexpected and suggests that faint cluster galaxies could be an heterogeneous population that formed through more than one evolutionary path, possibly as a consequence of the cluster environment.

  3. Path integral quantization of generalized quantum electrodynamics

    SciTech Connect (OSTI)

    Bufalo, R.; Pimentel, B. M.; Zambrano, G. E. R.

    2011-02-15

    In this paper, a complete covariant quantization of generalized electrodynamics is shown through the path integral approach. To this goal, we first studied the Hamiltonian structure of the system following Dirac's methodology and, then, we followed the Faddeev-Senjanovic procedure to obtain the transition amplitude. The complete propagators (Schwinger-Dyson-Fradkin equations) of the correct gauge fixation and the generalized Ward-Fradkin-Takahashi identities are also obtained. Afterwards, an explicit calculation of one-loop approximations of all Green's functions and a discussion about the obtained results are presented.

  4. ClearPath | Open Energy Information

    Open Energy Info (EERE)

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

  5. EnerPath | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePowerEdisto Electric Coop, Inc JumpElko, Nevada:Geothermal7)EnerPath Jump to:

  6. The Flight Paths for Biojet Fuel

    Gasoline and Diesel Fuel Update (EIA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet) Wyoming963 1.969 1.979 1.988Prices,Flight Paths for Biojet Fuel Tony Radich

  7. Methanol Along the Path from Envelope to Protoplanetary Disc

    E-Print Network [OSTI]

    Drozdovskaya, Maria N; Visser, Ruud; Harsono, Daniel; van Dishoeck, Ewine F

    2014-01-01

    Interstellar methanol is considered to be a parent species of larger, more complex organic molecules. A physicochemical simulation of infalling parcels of matter is performed for a low-mass star-forming system to trace the chemical evolution from cloud to disc. An axisymmetric 2D semi-analytic model generates the time-dependent density and velocity distributions, and full continuum radiative transfer is performed to calculate the dust temperature and the UV radiation field at each position as a function of time. A comprehensive gas-grain chemical network is employed to compute the chemical abundances along infall trajectories. Two physical scenarios are studied, one in which the dominant disc growth mechanism is viscous spreading, and another in which continuous infall of matter prevails. The results show that the infall path influences the abundance of methanol entering each type of disc, ranging from complete loss of methanol to an enhancement by a factor of > 1 relative to the prestellar phase. Critical ch...

  8. Path Planning Algorithm for Extinguishing Forest Fires

    E-Print Network [OSTI]

    Kumar, M P Sivaram

    2012-01-01

    One of the major impacts of climatic changes is due to destroying of forest. Destroying of forest takes place in many ways but the majority of the forest is destroyed due to wild forest fires. In this paper we have presented a path planning algorithm for extinguishing fires which uses Wireless Sensor and Actor Networks (WSANs) for detecting fires. Since most of the works on forest fires are based on Wireless Sensor Networks (WSNs) and a collection of work has been done on coverage, message transmission, deployment of nodes, battery power depletion of sensor nodes in WSNs we focused our work in path planning approach of the Actor to move to the target area where the fire has occurred and extinguish it. An incremental approach is presented in order to determine the successive moves of the Actor to extinguish fire in an environment with and without obstacles. This is done by comparing the moves determined with target location readings obtained using sensors until the Actor reaches the target area to extinguish f...

  9. Towards a realistic parsing of the Feynman path integral

    E-Print Network [OSTI]

    K. B. Wharton

    2015-11-29

    The Feynman path integral does not allow a "one real path" interpretation, because amplitudes contribute to probabilities in a non-separable manner. The opposite extreme, "all paths happen", is not a useful or informative account. In this paper it is shown that an intermediate parsing of the path integral, into realistic non-interfering possibilities, is always available. Each realistic possibility formally corresponds to numerous particle paths, but is arguably best interpreted as a spacetime-valued field. Notably, one actual field history can always be said to occur, although it will generally not have an extremized action. The most obvious concerns with this approach are addressed, indicating necessary follow-up research. But without obvious showstoppers, it seems plausible that the path integral might be reinterpreted to explain quantum phenomena in terms of Lorentz covariant field histories.

  10. Path Integral and Effective Hamiltonian in Loop Quantum Cosmology

    E-Print Network [OSTI]

    Haiyun Huang; Yongge Ma; Li Qin

    2011-06-27

    We study the path integral formulation of Friedmann universe filled with a massless scalar field in loop quantum cosmology. All the isotropic models of $k=0,+1,-1$ are considered. To construct the path integrals in the timeless framework, a multiple group-averaging approach is proposed. Meanwhile, since the transition amplitude in the deparameterized framework can be expressed in terms of group-averaging, the path integrals can be formulated for both deparameterized and timeless frameworks. Their relation is clarified. It turns out that the effective Hamiltonian derived from the path integral in deparameterized framework is equivalent to the effective Hamiltonian constraint derived from the path integral in timeless framework, since they lead to same equations of motion. Moreover, the effective Hamiltonian constraints of above models derived in canonical theory are confirmed by the path integral formulation.

  11. Navigating Roadblocks on the Path to Advanced Biofuels Deployment

    Broader source: Energy.gov [DOE]

    Breakout Session 2: Frontiers and Horizons Session 2–C: Navigating Roadblocks on the Path to Advanced Biofuels Deployment Andrew Held, Senior Director of Feedstock Development, Virent, Inc.

  12. Reduction of Emission Variance by Intelligent Air Path Control

    Broader source: Energy.gov [DOE]

    This poster describes an air path control concept, which minimizes NOx and PM emission variance while having the ability to run reliably with many different sensor configurations.

  13. ORNL thermomagnetic processing method provides path to new materials...

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

    thermomagnetic processing method provides path to new materials The high magnetic field environments are provided by fully recondensing commercial prototype superconducting magnet...

  14. DOE EM Landfill Workshop and Path Forward - July 2009

    Office of Environmental Management (EM)

    Teleconference: 2. DOE EM Landfill Workshop & Path Forward Office of Groundwater and Soil Remediation US Department of Energy July 2009 Slides prepared by CRESP DOE EM Landfill...

  15. Office of River Protection's (ORP) Path to Reinvigorating Technology...

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

    Development Presentation from the 2015 DOE National Cleanup Workshop by Kevin Smith, Manager, Office of River Protection. ORP's Path to Reinvigorating Technology...

  16. Community-Based Forest (Natural) Resource Management: A Path...

    Open Energy Info (EERE)

    Community-Based Forest (Natural) Resource Management: A Path to Sustainable Environment and Development Jump to: navigation, search Name Community-Based Forest (Natural) Resource...

  17. Minimal paths between communities induced by geographical networks

    E-Print Network [OSTI]

    de Arruda, Henrique Ferraz; Costa, Luciano da Fontoura

    2015-01-01

    In this work we investigate the betweenness centrality in geographical networks and its relationship with network communities. We show that nodes with large betweenness define what we call characteristic betweenness paths in both modeled and real-world geographical networks. We define a geographical network model that possess a simple topology while still being able to present such betweenness paths. Using this model, we show that such paths represent pathways between entry and exit points of highly connected regions, or communities, of geographical networks. By defining a new network, containing information about community adjacencies in the original network, we describe a means to characterize the mesoscale connectivity provided by such characteristic betweenness paths.

  18. Identification of MHF Fracture Planes and Flow Paths- a Correlation...

    Open Energy Info (EERE)

    creation of flow paths through the rock between two wellbores. To date, circulation systems have only been created by drilling one wellbore, hydraulically fracturing the well...

  19. A Development Path for the Stabilized Spheromak

    SciTech Connect (OSTI)

    Fowler, T K

    2007-07-13

    In Refs. [1] - [3], I suggest a concerted computational effort to study profile control of spheromaks, in anticipation that it is timely to incorporate the q < 1 regime of RFP's and spheromaks into an integrated advanced toroidal confinement program, together with improvements in tokamaks and stellarators now being pursued. For profile control of spheromaks by neutral beam injection, with care to avoid super-Alfvenic beam instability the main issue is excitation of tearing modes that can be studied using the NIMROD code already calibrated to MST and SSPX. In this note, I show that profile control on spheromaks could be demonstrated in a device the size of SSPX, leading ultimately to a very compact ignition facility, and possibly modular fusion reactors with a shorter development path.

  20. Hot gas path component cooling system

    DOE Patents [OSTI]

    Lacy, Benjamin Paul; Bunker, Ronald Scott; Itzel, Gary Michael

    2014-02-18

    A cooling system for a hot gas path component is disclosed. The cooling system may include a component layer and a cover layer. The component layer may include a first inner surface and a second outer surface. The second outer surface may define a plurality of channels. The component layer may further define a plurality of passages extending generally between the first inner surface and the second outer surface. Each of the plurality of channels may be fluidly connected to at least one of the plurality of passages. The cover layer may be situated adjacent the second outer surface of the component layer. The plurality of passages may be configured to flow a cooling medium to the plurality of channels and provide impingement cooling to the cover layer. The plurality of channels may be configured to flow cooling medium therethrough, cooling the cover layer.

  1. Hanford spent nuclear fuel project recommended path forward, volume III: Alternatives and path forward evaluation supporting documentation

    SciTech Connect (OSTI)

    Fulton, J.C.

    1994-10-01

    Volume I of the Hanford Spent Nuclear Fuel Project - Recommended Path Forward constitutes an aggressive series of projects to construct and operate systems and facilities to safely retrieve, package, transport, process, and store K Basins fuel and sludge. Volume II provided a comparative evaluation of four Alternatives for the Path Forward and an evaluation for the Recommended Path Forward. Although Volume II contained extensive appendices, six supporting documents have been compiled in Volume III to provide additional background for Volume II.

  2. NC machine tool path generation from CSG part

    E-Print Network [OSTI]

    Bobrow, James E.

    NC machine tool path generation from CSG part representations James E Bobrow Recent improvements for machine tool path generation. Current machining algorithms require that any port geometric information modelling system is used. Thispaper presents o method for generating numerically-controlled milling machine

  3. Disjoint BoundaryBoundary Paths in Critical Circular Planar Networks

    E-Print Network [OSTI]

    Morrow, James A.

    Disjoint Boundary­Boundary Paths in Critical Circular Planar Networks Ryan Sturgell December 8 that in a critical circular planar network every interior vertex has three disjoint paths to the boundary. 1, 1998 Abstract This paper explores some properties of critical circular planar net­ works. The main

  4. L1 Regularization Path Algorithm for Generalized Linear Models

    E-Print Network [OSTI]

    Hastie, Trevor

    of the paths; we suggest intuitive and flexible strategies for choosing appropriate values. We demonstrate: ^() = argmin {- log L(y; ) + 1}, (2) where > 0 is the regularization parameter. Logistic regression with L1 the most complex stage possible. By generating the regularization path rather than computing solutions

  5. Path Planning for Permutation-Invariant Multi-Robot Formations

    E-Print Network [OSTI]

    Hutchinson, Seth

    Path Planning for Permutation-Invariant Multi-Robot Formations Stephen Kloder Seth Hutchinson, IL 61801 Email: {kloder, seth}@uiuc.edu Abstract-- In this paper we demonstrate path planning for our-assign roles for each individual robot, rely on local planning and behaviors to build emergent behaviors

  6. Efficient Path Delay Test Generation with Boolean Satisfiability 

    E-Print Network [OSTI]

    Bian, Kun

    2013-12-10

    This dissertation focuses on improving the accuracy and efficiency of path delay test generation using a Boolean satisfiability (SAT) solver. As part of this research, one of the most commonly used SAT solvers, MiniSat, was integrated into the path...

  7. Cost effective path to DEMO University of Washington

    E-Print Network [OSTI]

    1 Cost effective path to DEMO By Tom Jarboe University of Washington To Fusion Power Associates December 14, 2011 #12;2 Outline · Maximizing the development-cost benefit from ITER knowledge · Getting on cost effective path · Requirements of smaller scale experiment · Cost problems are helped

  8. Efficient Static Analysis with Path Pruning using Coverage Data

    E-Print Network [OSTI]

    Jalote, Pankaj

    Efficient Static Analysis with Path Pruning using Coverage Data Vipindeep V, Pankaj Jalote,jalote}@cse.iitk.ac.in ABSTRACT Soundness and completeness are two primary concerns of a static analysis tool for finding defects in software. Exhaus- tive static analysis of the program through all paths is not always possible, especially

  9. Finding Chemical Reaction Paths with a Multilevel Preconditioning Seyit Kale,,

    E-Print Network [OSTI]

    Dinner, Aaron

    Finding Chemical Reaction Paths with a Multilevel Preconditioning Protocol Seyit Kale,, Olaseni for chemical reactions can be computationally costly owing to the level of quantum- chemical theory needed for the reaction path iteratively. These methods have yielded important insights in quantum chemical contexts9

  10. Mechanism of Ligand Exchange Studied Using Transition Path Sampling

    E-Print Network [OSTI]

    Harris, Charles B.

    Mechanism of Ligand Exchange Studied Using Transition Path Sampling Preston T. Snee, Jennifer@socrates.berkeley.edu Abstract: The mechanism of intermolecular ligand exchange has been studied using transition path sampling that there are multiple steps in the reaction mechanism. The first involves partial dissociation of the coordinated

  11. The Reaction Path in Chemistry: Current Approaches and Perspectives

    E-Print Network [OSTI]

    Quapp, Wolfgang

    , Germany UNDERSTANDING CHEMICAL REACTIVITY 16 August 1995 Hardbound 308 pp. ISBN 0-7923-3589-9 The reaction and usage of the reaction path concept; D. Heidrich. From reaction path to reaction mechanism: Fundamental. Second-order methods for the optimization of molecular potential energy surfaces; T. Helgaker et al

  12. Minimizing communication in all-pairs shortest paths Edgar Solomonik

    E-Print Network [OSTI]

    California at Berkeley, University of

    Minimizing communication in all-pairs shortest paths Edgar Solomonik Aydin Buluc James Demmel;Copyright © 2013, by the author(s). All rights reserved. Permission to make digital or hard copies of all, requires prior specific permission. #12;Minimizing communication in all-pairs shortest paths Edgar

  13. Pedestrian Path Prediction with Recursive Bayesian Filters: A Comparative Study

    E-Print Network [OSTI]

    Gavrila, Dariu M.

    Pedestrian Path Prediction with Recursive Bayesian Filters: A Comparative Study N. Schneider1 a com- parative study on recursive Bayesian filters for pedestrian path pre- diction at short time/acceleration/turn). These are applied to four typical pedestrian mo- tion types (crossing, stopping, bending in, starting). Position

  14. Pierre.Francois@UCLouvain.be BGP Path visibility

    E-Print Network [OSTI]

    Bonaventure, Olivier

    BGP NHs · Hitless planned maintenance · "Optimal" hot-potato routing · (Churn reduction / convergence the IGP tie-break to clients · Depending on which paths it advertises #12;Churn reduction ??? · Churn reduction for primary paths... · ...with internal churn increase for non-primary ones #12;Churn Reduction

  15. Path to Market for Compact Modular Fusion Power Cores

    E-Print Network [OSTI]

    Precedents? Small number of private fusion companies starting up, filing patents and finding editions Lead author Grounded in DOE program #12;12/13/11 5 Path to market 'next step' Springer Energy Brief: 'Path to Market for Compact Modular Fusion Power' Soliciting wider input from energy, business

  16. Dual Path Instruction Processing Juan L. Aragn1

    E-Print Network [OSTI]

    Acacio, Manuel

    ,joseg}@ditec.um.es 2 Dept. d'Arquitectura de Comp. Universitat Politècnica de Catalunya 08034 Barcelona (Spain) antonio@ac, and renames, but does not execute, instructions from the alternative path for low confidence predicted branches at the same time as the predicted path is being executed. All the stages of the pipeline front

  17. SPECIAL ISSUE PAPER Efficient camera path planning algorithm for human

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    , and a near-optimal path can be obtained. In addition, some COMPUTER ANIMATION AND VIRTUAL WORLDS Comp. AnimSPECIAL ISSUE PAPER Efficient camera path planning algorithm for human motion overview I-Cheng Yeh1 research topic, benefiting many animation applications. Existing optimal-based approaches are generally

  18. Improved Hardness of Approximation for Stackelberg Shortest-Path Pricing

    E-Print Network [OSTI]

    Verbrugge, Clark

    the Stackelberg shortest-path pricing problem, which is defined as follows. Given a graph G with fixed-cost on the predefined fixed costs and our prices, a customer purchases a cheapest s-t-path in G and we receive payment costs, we may assign prices to a subset of the items. Given both fixed costs and prices, a single

  19. NIF: A Path to Fusion Energy

    SciTech Connect (OSTI)

    Moses, E

    2007-06-01

    Fusion energy has long been considered a promising, clean, nearly inexhaustible source of energy. Power production by fusion micro-explosions of inertial confinement fusion (ICF) targets has been a long-term research goal since the invention of the first laser in 1960. The National Ignition Facility (NIF) is poised to take the next important step in the journey by beginning experiments researching ICF ignition. Ignition on NIF will be the culmination of over thirty years of ICF research on high-powered laser systems such as the Nova laser at Lawrence Livermore National Laboratory (LLNL) and the OMEGA laser at the University of Rochester, as well as smaller systems around the world. NIF is a 192-beam Nd-glass laser facility at LLNL that is more than 90% complete. The first cluster of 48 beams is operational in the laser bay, the second cluster is now being commissioned, and the beam path to the target chamber is being installed. The Project will be completed in 2009, and ignition experiments will start in 2010. When completed, NIF will produce up to 1.8 MJ of 0.35-{micro}m light in highly shaped pulses required for ignition. It will have beam stability and control to higher precision than any other laser fusion facility. Experiments using one of the beams of NIF have demonstrated that NIF can meet its beam performance goals. The National Ignition Campaign (NIC) has been established to manage the ignition effort on NIF. NIC has all of the research and development required to execute the ignition plan and to develop NIF into a fully operational facility. NIF will explore the ignition space, including direct drive, 2{omega} ignition, and fast ignition, to optimize target efficiency for developing fusion as an energy source. In addition to efficient target performance, fusion energy requires significant advances in high-repetition-rate lasers and fusion reactor technology. The Mercury laser at LLNL is a high-repetition-rate Nd-glass laser for fusion energy driver development. Mercury uses state-of-the-art technology such as ceramic laser slabs and light diode pumping for improved efficiency and thermal management. Progress in NIF, NIC, Mercury, and the path forward for fusion energy will be presented.

  20. Shortest Path Set Induced Vertex Ordering and its Application to Distributed Distance Optimal Formation Path Planning and Control on Graphs

    E-Print Network [OSTI]

    LaValle, Steven M.

    Formation Path Planning and Control on Graphs Jingjin Yu Steven M. LaValle Abstract-- For the task of moving formation, it was shown that distance optimal paths can be computed to complete with a tight convergence formation. The ordering leads to a simple distributed scheduling algorithm that assures the same convergence

  1. NGNP Program 2013 Status and Path Forward

    SciTech Connect (OSTI)

    Hans Gougar

    2014-03-01

    High temperature gas-cooled reactor (HTGR) technology can play an important role in the energy future of the United States by extending the use of nuclear energy for non-electricity energy production missions, as well as continuing to provide a considerable base load electric power generation capability. Extending nuclear energy into the industrial and transportation sectors through the coproduction of process heat and electricity provides safe, reliable energy for these sectors in an environmentally responsible manner. The modular HTGR provides a substantial improvement in nuclear plant safety for the protection of the public and the environment, and supports collocation of the HTGRhigh temperature gas-cooled reactor with major industrial facilities. Under U.S. Department of Energy direction since 2006, the Next Generation Nuclear Plant Project at Idaho National Laboratory has been working toward commercializing the HTGR technology. However, a recent decision by the Secretary of Energy to reduce the scope of the Next Generation Nuclear Plant Project to a research and development program, considerable realignment has taken place. This report: (1) summarizes the accomplishments of the Next Generation Nuclear Plant Program from FY2011 through FY2013; (2) lays out the path forward necessary to achieve the ultimate objective of commercializing HTGR technology; and (3) discusses ongoing technical, licensing, and evaluation activities under the realigned Next Generation Nuclear Plant program considered important to preserve the significant investment made by the government to-date and to maintain some progress in meeting the objectives of the Energy Policy Act of 2005 (EPAct2005).

  2. Water Evaporation: A Transition Path Sampling Study

    E-Print Network [OSTI]

    Patrick Varilly; David Chandler

    2012-12-12

    We use transition path sampling to study evaporation in the SPC/E model of liquid water. Based on thousands of evaporation trajectories, we characterize the members of the transition state ensemble (TSE), which exhibit a liquid-vapor interface with predominantly negative mean curvature at the site of evaporation. We also find that after evaporation is complete, the distributions of translational and angular momenta of the evaporated water are Maxwellian with a temperature equal to that of the liquid. To characterize the evaporation trajectories in their entirety, we find that it suffices to project them onto just two coordinates: the distance of the evaporating molecule to the instantaneous liquid-vapor interface, and the velocity of the water along the average interface normal. In this projected space, we find that the TSE is well-captured by a simple model of ballistic escape from a deep potential well, with no additional barrier to evaporation beyond the cohesive strength of the liquid. Equivalently, they are consistent with a near-unity probability for a water molecule impinging upon a liquid droplet to condense. These results agree with previous simulations and with some, but not all, recent experiments.

  3. An Electromechanical Which-Path Interferometer

    E-Print Network [OSTI]

    A. D. Armour; M. P. Blencowe

    2001-08-28

    We investigate the possibility of an electromechanical which-path interferometer, in which electrons travelling through an Aharonov-Bohm ring incorporating a quantum dot in one of the arms are dephased by an interaction with the fundamental flexural mode of a radio frequency cantilever. The cantilever is positioned so that its tip lies just above the dot and a bias is applied so that an electric field exists between the dot and the tip. This electric field is modified when an additional electron hops onto the dot, coupling the flexural mode of the cantilever and the microscopic electronic degrees of freedom. We analyze the transmission properties of this system and the dependence of interference fringe visibility on the cantilever-dot coupling and on the mechanical properties of the cantilever. The fringes are progressively destroyed as the interaction with the cantilever is turned up, in part due to dephasing arising from the entanglement of the electron and cantilever states and also due to the thermal smearing that results from fluctuations in the state of the cantilever. When the dwell time of the electron on the dot is comparable to or longer than the cantilever period, we find coherent features in the transmission amplitude. These features are washed out when the cantilever is decohered by its coupling to the environment.

  4. A New Weighted Shortest Path Tree for Convergecast Traffic Routing in WSN

    E-Print Network [OSTI]

    Boyer, Edmond

    , existing SPT approaches aim to construct a tree rooted at the sink such that the cost of the path from any to the basic one. Index Terms--Wireless Sensor Networks (WSN), Shortest Path Tree (SPT), weighted path cost such that the path cost from any node to the sink is minimal. In existing construction algorithms, the cost of a path

  5. Routing Bandwidth Guaranteed Paths with Local Restoration in Label Switched Networks

    E-Print Network [OSTI]

    Li, Li Erran

    information. We first show that joint optimization of primary and backup paths is NP-hard in all cases. We along the primary path, the source node detects path failure and activates the backup path or nodes along primary path fail. In this paper, we address the problem of distributed routing

  6. A method for finding the statically sensitized critical path in VLSI circuits 

    E-Print Network [OSTI]

    Sen, Anindita

    1995-01-01

    The longest sensitizable paths of a circuit are referred to as the critical paths of the circuit. Finding all the critical paths in a circuit is called the critical path problem. There are various methods at present to find the critical path of a...

  7. Path integral derivations of novel complex trajectory methods

    E-Print Network [OSTI]

    Jeremy Schiff; Yair Goldfarb; David J. Tannor

    2008-07-30

    Path integral derivations are presented for two recently developed complex trajectory techniques for the propagation of wave packets, Complex WKB and BOMCA. Complex WKB is derived using a standard saddle point approximation of the path integral, but taking into account the hbar dependence of both the amplitude and the phase of the intial wave function, thus giving rise to the need for complex classical trajectories. BOMCA is derived using a modification of the saddle point technique, in which the path integral is approximated by expanding around a near-classical path, chosen so that up to some predetermined order there is no need to add any correction terms to the leading order approximation. Both Complex WKB and BOMCA give the same leading order approximation; in Complex WKB higher accuracy is achieved by adding correction terms, while in BOMCA no additional terms are ever added -higher accuracy is achieved by changing the path along which the original approximation is computed. The path integral derivation of the methods explains the need to incorporate contributions from more than one trajectory, as observed in previous numerical work. On the other hand, it emerges that the methods provide efficient schemes for computing the higher order terms in the asymptotic evaluation of path integrals. The understanding we develop of BOMCA suggests that there should exist near-classical trajectories that give exact quantum dynamical results when used in the computation of the path integral keeping just the leading order term. We also apply our path integral techniques to give a compact derivation of the semiclassical approximation to the coherent state propagator.

  8. Path forward for dosimetry cross sections

    SciTech Connect (OSTI)

    Griffin, P.J. [Sandia National Laboratories, Albuquerque, NM 87185-1146 (United States); Peters, C.D. [Sandia Staffing Alliance, Albuquerque, NM 87110 (United States)

    2011-07-01

    In the 1980's the dosimetry community embraced the need for a high fidelity quantification of uncertainty in nuclear data used for dosimetry applications. This led to the adoption of energy-dependent covariance matrices as the accepted manner of quantifying the uncertainty data. The trend for the dosimetry community to require high fidelity treatment of uncertainty estimates has continued to the current time where requirements on nuclear data are codified in standards such as ASTM E 1018. This paper surveys the current state of the dosimetry cross sections and investigates the quality of the current dosimetry cross section evaluations by examining calculated-to-experimental ratios in neutron benchmark fields. In recent years more nuclear-related technical areas are placing an emphasis on uncertainty quantification. With the availability of model-based cross sections and covariance matrices produced by nuclear data codes, some nuclear-related communities are considering the role these covariance matrices should play. While funding within the dosimetry community for cross section evaluations has been very meager, other areas, such as the solar-related astrophysics community and the US Nuclear Criticality Safety Program, have been supporting research in the area of neutron cross sections. The Cross Section Evaluation Working Group (CSEWG) is responsible for the creation and maintenance of the ENDF/B library which has been the mainstay for the reactor dosimetry community. Given the new trends in cross section evaluations, this paper explores the path forward for the US nuclear reactor dosimetry community and its use of the ENDF/B cross-sections. The major concern is maintenance of the sufficiency and accuracy of the uncertainty estimate when used for dosimetry applications. The two major areas of deficiency in the proposed ENDF/B approach are: 1) the use of unrelated covariance matrices in ENDF/B evaluations and 2) the lack of 'due consideration' of experimental data in the evaluation. (authors)

  9. Path Integral of Bianchi I models in Loop Quantum Cosmology

    E-Print Network [OSTI]

    Xiao Liu; Fei Huang; Jian-Yang Zhu

    2013-02-01

    A path integral formulation of the Bianchi I models containing a massless scalar field in loop quantum cosmology is constructed. Following the strategy used in the homogenous and isotropic case, the calculation is extended to the simplest non-isotropic models according to the $\\bar{\\mu}$ and $\\bar{\\mu}^{\\prime}$ scheme. It is proved from the path integral angle that the quantum dynamic lacks the full invariance with respect to fiducial cell scaling in the $\\bar{\\mu}$ scheme, but it does not in the $\\bar{\\mu}^{\\prime}$ scheme. The investigation affirms the equivalence of the canonical approach and the path integral approach in loop quantum cosmology.

  10. Selecta from a Life-Long Obsession with Path Integrals

    SciTech Connect (OSTI)

    Klauder, John R.

    2008-06-18

    The definition and interpretation of canonical, phase space path integrals has evolved over many years to achieve a form that now admits a correct and rigorous formulation, which is also covariant under canonical coordinate transformations. Such formulations involve coherent state representations, which, in their modern version, were originally introduced as an alternative tool to construct phase space path integrals. Moreover, coherent state representations lead to physical interpretations that are more natural than those afforded by more traditional representations. Suitable continuous time regularization procedures lead to a covariant phase space path integral formulation that greatly clarifies the vague phrase that canonical quantization requires Cartesian coordinates.

  11. Low Carbon Growth: a Potential Path for Mexico - GHG Abatement Cost Curve |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona:Oregon: EnergyLloyd,LoudonLouviers, Colorado:Loving

  12. Low Carbon Growth: a Potential Path for Mexico - GHG Abatement Cost Curve |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWindsCompressedListguidedandLouisville,JumpLovesOpen

  13. AHSS Stamping Project ? A/SP 050; Nonlinear Strain Paths Project...

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

    Paths Project ASP 061 AHSS Stamping Project ASP 050; Nonlinear Strain Paths Project ASP 061 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies...

  14. Solution Path Clustering with Minimax Concave Penalty and Its Applications to Noisy Big Data

    E-Print Network [OSTI]

    Marchetti, Yuliya

    2014-01-01

    Path Clustering of Noisy Big Data . . . . . . . . . . . .Y. Wah, and T. Herawan. “Big Data Clustering: A Review. ” InPath Clustering of Noisy Big Data Introduction In this

  15. Energy Upgrade California in Los Angeles County-- The Flex Path Program

    Broader source: Energy.gov [DOE]

    Energy Upgrade California in Los Angeles County: The Flex Path Program. Provides an overview of the Flex Path Pilot Program, progress and next steps.

  16. Commercial Light Water Production of Tritium Update and Path...

    Office of Environmental Management (EM)

    Light Water Production of Tritium: Update and Path Forward Dave Senor April 23, 2013 Tritium Focus Group 1 PNNL-SA-94431 Background United States defense maintains a stockpile of...

  17. The paths and characteristics of real estate entrepreneurs

    E-Print Network [OSTI]

    Kazmierski, Michael (Michael Anthony)

    2008-01-01

    What paths have real estate entrepreneurs taken to establish their own firm? Also, what characteristics did they develop and utilize in the process? This thesis gives the unique opportunity to better understand the life ...

  18. Multiphase flow and control of fluid path in microsystems

    E-Print Network [OSTI]

    Jhunjhunwala, Manish

    2005-01-01

    Miniaturized chemical-systems are expected to have advantages of handling, portability, cost, speed, reproducibility and safety. Control of fluid path in small channels between processes in a chemical/biological network ...

  19. Optimizing Path Query Performance: Graph Clustering Strategies \\Lambda

    E-Print Network [OSTI]

    information systems, fleet management, public transit, troop movement, urban planning, to name a few. Among energy­efficient path from A to B that does not use toll roads.'' Q2: ``Display all the garages reachable

  20. Navigating Roadblocks on the Path to Advanced Biofuels Deployment

    Broader source: Energy.gov [DOE]

    Breakout Session 2: Frontiers and Horizons Session 2–C: Navigating Roadblocks on the Path to Advanced Biofuels Deployment Arunas Chesonis, Chief Executive Officer and Chairman of the Board, Sweetwater Energy

  1. Alarm guided critical function and success path monitoring

    DOE Patents [OSTI]

    Scarola, Kenneth (Windsor, CT); Jamison, David S. (Windsor, CT); Manazir, Richard M. (North Canton, CT); Rescorl, Robert L. (Vernon, CT); Harmon, Daryl L. (Enfield, CT)

    1994-01-01

    The use of alarm indication on the overview (IPSO) display to initiate diagnosis of challenges to critical functions or unavailability of success paths, and further alarm-based guidance toward ultimate diagnosis.

  2. Ab-initio path integral techniques for molecules

    E-Print Network [OSTI]

    Daejin Shin; Ming-Chak Ho; J. Shumway

    2006-11-09

    Path integral Monte Carlo with Green's function analysis allows the sampling of quantum mechanical properties of molecules at finite temperature. While a high-precision computation of the energy of the Born-Oppenheimer surface from path integral Monte Carlo is quite costly, we can extract many properties without explicitly calculating the electronic energies. We demonstrate how physically relevant quantities, such as bond-length, vibrational spectra, and polarizabilities of molecules may be sampled directly from the path integral simulation using Matsubura (temperature) Green's functions (imaginary-time correlation functions). These calculations on the hydrogen molecule are a proof-of-concept, designed to motivate new work on fixed-node path-integral calculations for molecules.

  3. Algorithms for an Unmanned Vehicle Path Planning Problem 

    E-Print Network [OSTI]

    Qin, Jianglei

    2013-06-25

    Unmanned Vehicles (UVs) have been significantly utilized in military and civil applications over the last decade. Path-planning of UVs plays an important role in effectively using the available resources such as the UVs and sensors as efficiently...

  4. Directional pre-verbs and the registration of path

    E-Print Network [OSTI]

    Rhodes, Richard Alan

    2005-01-01

    to paths: bi- ‘coming’, ani- ‘going’, bi'mi- ‘goingto this. The morpheme ani- away also appears in future= to-go- coming-mm (Zb) anI'- anim- ni-zlmad ‘go away‘

  5. Glider Path-Planning for Optimal Sampling of Mesoscale Eddies

    E-Print Network [OSTI]

    Smith, Ryan N.

    Glider Path-Planning for Optimal Sampling of Mesoscale Eddies Daniel Hernandez1 , Ryan Smith2 these, mesoscale eddies are of particular interest due to the relevance they have in many oceano

  6. Human-Automation Path Planning Optimization and Decision Support

    E-Print Network [OSTI]

    Cummings, M.L.

    2011-01-01

    Path planning is a problem encountered in multiple domains, including unmanned vehicle control, air traffic control, and future exploration missions to the Moon and Mars. Due to the voluminous and complex nature of the ...

  7. Optimally Controlling Hybrid Electric Vehicles using Path Forecasting

    E-Print Network [OSTI]

    Kolmanovsky, Ilya V.

    The paper examines path-dependent control of Hybrid Electric Vehicles (HEVs). In this approach we seek to improve HEV fuel economy by optimizing charging and discharging of the vehicle battery depending on the forecasted ...

  8. Path dependent receding horizon control policies for hybrid electric vehicles

    E-Print Network [OSTI]

    Kolmanovsky, Ilya V.

    Future hybrid electric vehicles (HEVs) may use path-dependent operating policies to improve fuel economy. In our previous work, we developed a dynamic programming (DP) algorithm for prescribing the battery state of charge ...

  9. Inquiry-based learning templates for creating online educational paths 

    E-Print Network [OSTI]

    Davis, Sarah Alice

    2006-10-30

    Walden's Paths, created by the Center for the Study of Digital Libraries, provides a mechanism for leveraging student learning with the incredible amount of educational material on the web by organizing selected web pages ...

  10. A Surprising Path for Proton Transfer Without Hydrogen Bonds

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

    A Surprising Path for Proton Transfer Without Hydrogen Bonds Print Hydrogen bonds are found everywhere in chemistry and biology and are critical in DNA and RNA. A hydrogen bond...

  11. Optimally controlling hybrid electric vehicles using path forecasting

    E-Print Network [OSTI]

    Katsargyri, Georgia-Evangelina

    2008-01-01

    Hybrid Electric Vehicles (HEVs) with path-forecasting belong to the class of fuel efficient vehicles, which use external sensory information and powertrains with multiple operating modes in order to increase fuel economy. ...

  12. A "Sponge" Path to Better Catalysts and Energy Materials | Advanced...

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

    to APS Science Highlights rss feed A "Sponge" Path to Better Catalysts and Energy Materials September 6, 2013 Bookmark and Share This schematic depicts a new ORNL-developed...

  13. Helium 'balloons' offer new path to control complex materials...

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

    Morgan McCorkle Communications and Media Relations 865.574.7308 Helium 'balloons' offer new path to control complex materials Inserting helium atoms (visualized as a red balloon)...

  14. Directed Polymers in Random Environment: Path Localization and Strong Disorder

    E-Print Network [OSTI]

    Directed Polymers in Random Environment: Path Localization and Strong Disorder Francis COMETS, constrained to stretch in the (d + 1)­th direction, and governed by the Hamiltonian - # j#1 (##(S j , j

  15. Automatic beam path analysis of laser wakefield particle acceleration data

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Automatic beam path analysis of laser wakefield particle acceleration data Oliver Rübel1 in a pipeline fashion to automatically locate and analyze high-energy particle bunches undergoing acceleration

  16. Software-based tool path evaluation for environmental sustainability

    E-Print Network [OSTI]

    KONG, DAEYOUNG; Seungchoun Choi; Yusuke Yasui; Sushrut Pavanaskar; Dornfeld, David; Wright, Paul

    2011-01-01

    press as: Kong D, et al. Software-based tool path evaluationArchitecture of the simulation software. Besides the studiesanalysis of machining. Software-based simulation tools have

  17. Silicon Ink Technology Offers Path to Higher Efficiency Solar...

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

    Silicon Ink Technology Offers Path to Higher Efficiency Solar Cells at Lower Cost Partnering with Sunnyvale-based Innovalight, which was acquired by DuPont in July 2011, EERE...

  18. Asymptotically optimal path planning and surface reconstruction for inspection

    E-Print Network [OSTI]

    Papadopoulos, Georgios

    2014-01-01

    Motivated by inspection applications for marine structures, this thesis develops algorithms to enable their autonomous inspection. Two essential parts of the inspection problem are (1) path planning and (2) surface ...

  19. New power politics will determine generation's path

    SciTech Connect (OSTI)

    Maize, K.; Neville, A.; Peltier, R.

    2009-01-15

    The US power industry's story in 2009 will be all about change, to borrow a now-familiar theme. Though the new administration's policy specifics had not been revealed as this report was prepared, it appears that flat load growth in 2009 will give the new Obama administration a unique opportunity to formulate new energy policy without risking that the lights will go out. New coal projects are now facing increasing difficulties. It looks as though the electricity supply industry will continue to muddle through. It may see an advancement in infrastructure investment, significant new generation or new technology development. It also faces the possibility that policies necessary to achieving those goals will not materialize, for political and economic reasons. 4 figs.

  20. An Approach towards Reduction of Routing Paths for Mobile Networks

    SciTech Connect (OSTI)

    Thakurta, P. K. Guha; Sinha, Prothoma; Mallick, Nilesh [Dept. of CSE, NIT, Durgapur, WB-713209 (India); Bandyopadhyay, Subhansu [Dept. of CSE, University of Calcutta, WB-700009 (India)

    2010-10-26

    The foundation of various routing paths for a specific call requesting cell has been proposed in this paper. To improve searching efficiency, the number of routing paths has been reduced to a large extent. Hence, this reduction is based on the computation of frequent item sets. The performance of this proposed model is evaluated with respect to a parameter known as 'Occurrence Index (O{sub i})'. With such reduction, a significant performance gain would be achieved.

  1. Geometric Phase and Chiral Anomaly in Path Integral Formulation

    E-Print Network [OSTI]

    Kazuo Fujikawa

    2007-11-16

    All the geometric phases, adiabatic and non-adiabatic, are formulated in a unified manner in the second quantized path integral formulation. The exact hidden local symmetry inherent in the Schr\\"{o}dinger equation defines the holonomy. All the geometric phases are shown to be topologically trivial. The geometric phases are briefly compared to the chiral anomaly which is naturally formulated in the path integral.

  2. Vacuum Stress and Closed Paths in Rectangles, Pistons, and Pistols

    E-Print Network [OSTI]

    S. A. Fulling; L. Kaplan; K. Kirsten; Z. H. Liu; K. A. Milton

    2009-02-12

    Rectangular cavities are solvable models that nevertheless touch on many of the controversial or mysterious aspects of the vacuum energy of quantum fields. This paper is a thorough study of the two-dimensional scalar field in a rectangle by the method of images, or closed classical (or optical) paths, which is exact in this case. For each point r and each specularly reflecting path beginning and ending at r, we provide formulas for all components of the stress tensor T_{\\mu\

  3. Vacuum Stress and Closed Paths in Rectangles, Pistons, and Pistols

    E-Print Network [OSTI]

    Fulling, S A; Kirsten, K; Liu, Z H; Milton, K A

    2008-01-01

    Rectangular cavities are solvable models that nevertheless touch on many of the controversial or mysterious aspects of the vacuum energy of quantum fields. This paper is a thorough study of the two-dimensional scalar field in a rectangle by the method of images, or closed classical (or optical) paths, which is exact in this case. For each point r and each specularly reflecting path beginning and ending at r, we provide formulas for all components of the stress tensor T_{\\mu\

  4. Characterizing the speed and paths of shared bicycles in Lyon

    E-Print Network [OSTI]

    Jensen, Pablo; Ovtracht, Nicolas; Robardet, Céline; 10.1016/j.trd.2010.07.002

    2010-01-01

    Thanks to numerical data gathered by Lyon's shared bicycling system V\\'elo'v, we are able to analyze 11.6 millions bicycle trips, leading to the first robust characterization of urban bikers' behaviors. We show that bicycles outstrip cars in downtown Lyon, by combining high speed and short paths.These data also allows us to calculate V\\'elo'v fluxes on all streets, pointing to interesting locations for bike paths.

  5. A Markov Chain Model for Local Path Protection in Mobile Optical Backbone Networks

    E-Print Network [OSTI]

    Shayman, Mark A.

    agents are deployed to provide protection of the paths in the critical points of the network. The second that is disjoint from the active path. Methods in [4], [5] suggest an end-to-end backup path reservation is used for restoring the connectivity when the active path fails. However, in mobile ad hoc networks most

  6. Critical Path Analysis of TCP Transactions Paul Barford and Mark Crovella

    E-Print Network [OSTI]

    Banerjee, Suman

    Critical Path Analysis of TCP Transactions Paul Barford and Mark Crovella Abstract Improving critical path analysis. By constructing and pro#12;ling the critical path, it is possible to determine what implemented our technique in a tool called tcpeval that automates critical path analysis for Web transactions

  7. Layout-Aware Pattern Generation for Maximizing Supply Noise Effects on Critical Paths

    E-Print Network [OSTI]

    Tehranipoor, Mohammad

    Layout-Aware Pattern Generation for Maximizing Supply Noise Effects on Critical Paths Junxia Ma guardbands to critical paths and (ii) during path delay test to ensure the performance and reliability noise effects on critical paths while considering local voltage drop impacts is proposed. The proposed

  8. A Cost-Effective Critical Path Approach for Service Priority Optimization in the Grid Computing Economy

    E-Print Network [OSTI]

    Lin, Zhangxi

    1 A Cost-Effective Critical Path Approach for Service Priority Optimization in the Grid Computing as a prioritized PERT graph and prove that the localized conditional critical path, which is based on the cost on the non- critical paths with respect to a given critical path. Keywords: Grid computing, computing power

  9. Global Critical Path: A Tool for System-Level Timing Girish Venkataramani

    E-Print Network [OSTI]

    Goldstein, Seth Copen

    Global Critical Path: A Tool for System-Level Timing Analysis Girish Venkataramani Mihai Budiu. Traditionally, the critical path is defined at the RTL level, as the longest path in the combinational logic to define the concept of a Global Critical Path (GCP), for pre- dicting system-level performance. We show

  10. A Dynamic Critical Path Algorithm for Scheduling Scientific Workflow Applications on Global Grids

    E-Print Network [OSTI]

    Melbourne, University of

    A Dynamic Critical Path Algorithm for Scheduling Scientific Workflow Applications on Global Grids for the execution of performance driven Grid applications. In this paper, we propose a Dynamic Critical Path (DCP the critical path in the workflow task graph at every step. It assigns priority to a task in the critical path

  11. National facility for advanced computational science: A sustainable path to scientific discovery

    E-Print Network [OSTI]

    2004-01-01

    sustainable path towards petaflops performance. In order to effect a fundamental change in computer architecture

  12. Euclidean Path Modeling from Ground and Aerial Views* Irnran N. Junejo and Hassan Foroosh

    E-Print Network [OSTI]

    Foroosh, Hassan

    the trajecto- ries, we can efficientlyassign detectedtrajectoryits associ- ated path model, thereby only

  13. The universe as an eigenstate: spacetime paths and decoherence

    E-Print Network [OSTI]

    Ed Seidewitz

    2007-03-18

    This paper describes how the entire universe might be considered an eigenstate determined by classical limiting conditions within it. This description is in the context of an approach in which the path of each relativistic particle in spacetime represents a fine-grained history for that particle, and a path integral represents a coarse-grained history as a superposition of paths meeting some criteria. Since spacetime paths are parametrized by an invariant parameter, not time, histories based on such paths do not evolve in time but are rather histories of all spacetime. Measurements can then be represented by orthogonal states that correlate with specific points in such coarse-grained histories, causing them to decohere, allowing a consistent probability interpretation. This conception is applied here to the analysis of the two slit experiment, scattering and, ultimately, the universe as a whole. The decoherence of cosmological states of the universe then provides the eigenstates from which our "real" universe can be selected by the measurements carried out within it.

  14. Statistical distributions of quasi-optimal paths in the traveling salesman problem: the role of the initial distribution of cities

    E-Print Network [OSTI]

    Hernández-Saldaña, H; Hernández-Zapata, Ernesto

    2010-01-01

    Solutions to Traveling salesman problem have been obtained with several algorithms. However, few of them has discussed about the statistical distribution of lengths for the quasi-optimal path obtained. For a random set of cities such a distribution follows a rank 2 daisy model but our analysis on actual distribution of cities does not show the characteristic quadratic growth of the daisy model. The role played by the initial city distribution is explored in this work. The importance of understanding such a behavior in the context of electoral processes is discussed.

  15. Faddeev-Jackiw quantization and the path integral

    E-Print Network [OSTI]

    David J. Toms

    2015-08-29

    The method for quantization of constrained theories that was suggested originally by Faddeev and Jackiw along with later modifications is discussed. The particular emphasis of this paper is to show how it is simple to implement their method within the path integral framework using the natural geometric structure that their method utilizes. The procedure is exemplified with the analysis of two models: a quantum mechanical particle constrained to a surface (of which the hypersphere is a special case), and a quantized Schr\\"odinger field interacting with a quantized vector field for both the massive and the massless cases. The results are shown to agree with what is found using the Dirac method for constrained path integrals. We comment on a previous path integral analysis of the Faddeev-Jackiw method. We also discuss why a previous criticism of the Faddeev-Jackiw method is unfounded and why suggested modifications of their method are unnecessary.

  16. Faddeev-Jackiw quantization and the path integral

    E-Print Network [OSTI]

    Toms, David J

    2015-01-01

    The method for quantization of constrained theories that was suggested originally by Faddeev and Jackiw along with later modifications is discussed. The particular emphasis of this paper is to show how it is simple to implement their method within the path integral framework using the natural geometric structure that their method utilizes. The procedure is exemplified with the analysis of two models: a quantum mechanical particle constrained to a surface (of which the hypersphere is a special case), and a quantized Schr\\"odinger field interacting with a quantized vector field for both the massive and the massless cases. The results are shown to agree with what is found using the Dirac method for constrained path integrals. We comment on a previous path integral analysis of the Faddeev-Jackiw method. We also discuss why a previous criticism of the Faddeev-Jackiw method is unfounded and why suggested modifications of their method are unnecessary.

  17. China Energy and Emissions Paths to 2030

    SciTech Connect (OSTI)

    Fridley, David; Zheng, Nina; Zhou, Nan; Ke, Jing; Hasanbeigi, Ali; Morrow, Bill; Price, Lynn

    2011-01-14

    After over two decades of staggering economic growth and soaring energy demand, China has started taking serious actions to reduce its economic energy and carbon intensity by setting short and medium-term intensity reduction targets, renewable generation targets and various supporting policies and programs. In better understanding how further policies and actions can be taken to shape China's future energy and emissions trajectory, it is important to first identify where the largest opportunities for efficiency gains and emission reduction lie from sectoral and end-use perspectives. Besides contextualizing China's progress towards reaching the highest possible efficiency levels through the adoption of the most advanced technologies from a bottom-up perspective, the actual economic costs and benefits of adopting efficiency measures are also assessed in this study. This study presents two modeling methodologies that evaluate both the technical and economic potential of raising China's efficiency levels to the technical maximum across sectors and the subsequent carbon and energy emission implications through 2030. The technical savings potential by efficiency measure and remaining gap for improvements are identified by comparing a reference scenario in which China continues the current pace of with a Max Tech scenario in which the highest technically feasible efficiencies and advanced technologies are adopted irrespective of costs. In addition, from an economic perspective, a cost analysis of selected measures in the key industries of cement and iron and steel help quantify the actual costs and benefits of achieving the highest efficiency levels through the development of cost of conserved energy curves for the sectors. The results of this study show that total annual energy savings potential of over one billion tonne of coal equivalent exists beyond the expected reference pathway under Max Tech pathway in 2030. CO2 emissions will also peak earlier under Max Tech, though the 2020s is a likely turning point for both emission trajectories. Both emission pathways must meet all announced and planned policies, targets and non-fossil generation targets, or an even wider efficiency gap will exist. The savings potential under Max Tech varies by sector, but the industrial sector appears to hold the largest energy savings and emission reduction potential. The primary source of savings is from electricity rather than fuel, and electricity savings are magnified by power sector decarbonization through increasing renewable generation and coal generation efficiency improvement. In order to achieve the maximum energy savings and emission reduction potential, efficiency improvements and technology switching must be undertaken across demand sectors as well as in the growing power sector. From an economic perspective, the cost of conserved energy analysis indicates that nearly all measures for the iron and steel and cement industry are cost-effective. All 23 efficiency measures analyzed for the cement industry are cost-effective, with combined CO2 emission reduction potential of 448 Mt CO2. All of the electricity savings measures in the iron and steel industry are cost-effective, but the cost-effective savings potential for fuel savings measures is slightly lower than total technical savings potential. The total potential savings from these measures confirm the magnitude of savings in the scenario models, and illustrate the remaining efficiency gap in the cement and iron and steel industries.

  18. Fast growth of ultrananocrystalline diamond films by bias-enhanced nucleation and growth process in CH{sub 4}/Ar plasma

    SciTech Connect (OSTI)

    Saravanan, A.; Huang, B. R. [Graduate Institute of Electro-Optical Engineering and Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan (China); Sankaran, K. J.; Tai, N. H. [Department of Materials Science and Engineering, National TsingHua University, Hsinchu 300, Taiwan (China); Dong, C. L. [Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan (China); Lin, I. N., E-mail: inanlin@mail.tku.edu.tw [Department of Physics, Tamkang University, Tamsui 251, Taiwan (China)

    2014-05-05

    This letter describes the fast growth of ultrananocrystalline diamond (UNCD) films by bias-enhanced nucleation and growth process in CH{sub 4}/Ar plasma. The UNCD grains were formed at the beginning of the film's growth without the necessity of forming the amorphous carbon interlayer, reaching a thickness of ?380?nm in 10?min. Transmission electron microscopic investigations revealed that the application of bias voltage induced the formation of graphitic phase both in the interior and at the interface regions of UNCD films that formed interconnected paths, facilitating the transport of electrons and resulting in enhanced electron field emission properties.

  19. Update on Genomic Studies of Algae Paths toward Algal Genomics

    E-Print Network [OSTI]

    Update on Genomic Studies of Algae Paths toward Algal Genomics Arthur R. Grossman* The Carnegie the expression of genes. In this introductory manuscript, I discuss select algae and how genomics is impacting our understanding of these organisms. Four algae for which near-full genome information has become

  20. Shortest Path Discovery Problems: A Framework, Algorithms and Experimental Results

    E-Print Network [OSTI]

    Szepesvari, Csaba

    Shortest Path Discovery Problems: A Framework, Algorithms and Experimental Results Csaba Szepesv characterize some common properties of sound SPD algorithms, propose a partic- ular algorithm that is shown of the approach whereas the pro- posed algorithm is shown to yield a substantial speed-up of the recognition

  1. Update on Genomic Studies of Algae Paths toward Algal Genomics

    E-Print Network [OSTI]

    Update on Genomic Studies of Algae Paths toward Algal Genomics Arthur R. Grossman* The Carnegie of genomic information that is being used to help researchers understand the gene content of organisms, how the expression of genes. In this introductory manuscript, I discuss select algae and how genomics is impacting

  2. Path Planning on Manifolds using Randomized Higher-Dimensional Continuation

    E-Print Network [OSTI]

    Porta, Josep M.

    ´eonard Jaillet Abstract Despite the significant advances in path planning methods, problems in- volving highly constrained systems. It builds on recently developed tools for Higher-dimensional Continuation, which provide enveloping the sphere, the exploration is relatively homogeneous. b When the box is elongated along

  3. Planning Singularity-free Paths on Closed-Chain Manipulators

    E-Print Network [OSTI]

    Ros, Lluís

    . Henderson is with the Numerical Analysis Group in the Mathematical Sciences Department at IBM's Thomas J for computing singularity-free paths on closed-chain manipulators. Given two non-singular configurations configuration is found. If desired, the method can also be used to compute an exhaustive atlas of the whole

  4. Paths of Trains with Two-Wheeled Cars Luis Montejano

    E-Print Network [OSTI]

    Urrutia, Jorge

    Paths of Trains with Two-Wheeled Cars Luis Montejano , and Jorge Urrutia June 17, 2004 Abstract In this paper we study the following simple and mind-puzzling prob- lem: Can a model train car, which runs along closed curve, and the cars of our model train by segments whose end-points lie on the curve. 1

  5. UAV PATH FOLLOWING FOR TARGET OBSERVATION IN WIND

    E-Print Network [OSTI]

    UAV PATH FOLLOWING FOR TARGET OBSERVATION IN WIND Rolf Rysdyk, University of Washington, Seattle guidance and syn- chronous camera angles to observe a target from an unmanned-aerial-vehicle (UAV).1 Semi- autonomous operation of UAVs for target sensing have shown that operator situational awareness can be easily

  6. Energy-efficient Paths in Radio Networks Rene Beier1

    E-Print Network [OSTI]

    Matijevic, Domagoj

    Energy-efficient Paths in Radio Networks Rene Beier1 , Stefan Funke1 , Domagoj Matijevi´c1 has linear size and which can be build in O(n log n) time. The dependence on is polynomial in 1/. One

  7. The Path Less Travelled: Overcoming Tor's Bottlenecks with Traffic Splitting

    E-Print Network [OSTI]

    Goldberg, Ian

    The Path Less Travelled: Overcoming Tor's Bottlenecks with Traffic Splitting Mashael AlSabah, Kevin of Computer Science University of Waterloo Abstract. Tor is the most popular low-latency anonymity network, Tor has a variety of performance problems that result in poor quality of service, a strong

  8. Pseudo Functional Path Delay Test through Embedded Memories 

    E-Print Network [OSTI]

    Gao, Yukun

    2015-04-29

    On-chip memory arrays are widely used in systems-on-chip. Prior research has shown that timing critical paths often go through these memories. Embedded memories are typically tested using memory built-in self-test and macro test. However...

  9. Path Integral Monte-Carlo Calculations for Relativistic Oscillator

    E-Print Network [OSTI]

    Alexandr Ivanov; Oleg Pavlovsky

    2014-11-11

    The problem of Relativistic Oscillator has been studied in the framework of Path Integral Monte-Carlo(PIMC) approach. Ultra-relativistic and non-relativistic limits have been discussed. We show that PIMC method can be effectively used for investigation of relativistic systems.

  10. Folded-Light-Path Colloidal Quantum Dot Solar Cells

    E-Print Network [OSTI]

    Sargent, Edward H. "Ted"

    Folded-Light-Path Colloidal Quantum Dot Solar Cells Ghada I. Koleilat*, Illan J. Kramer*, Chris T-processed solar cells offer the promise of low cost, large-area processing, and, prospectively, high solar power solar cell performance20,21 . Results In the present work, we sought to increase the interaction

  11. Reports & Opinion A network of paths toward innovation

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Reports & Opinion A network of paths toward innovation The Origins of Evolutionary Innovations mutant phenotypes that may lead to an adaptive innovation. Wagner did not invent the idea of neutral the astounding abil- ity of life to produce true innovation in the face of environmental change and opportunity

  12. Combinatorial Filters: Sensor Beams, Obstacles, and Possible Paths

    E-Print Network [OSTI]

    LaValle, Steven M.

    , New York, NY 10121-0701 USA, fax +1 (212) 869-0481, or permissions@acm.org. c 1885 ACM many possible alternative implementations. The task is to determine the possible body paths based only was implemented in simulation. An inexpensive, low-energy, easily deployable architecture was also created, which

  13. Combinatorial Filters: Sensor Beams, Obstacles, and Possible Paths

    E-Print Network [OSTI]

    LaValle, Steven M.

    Publications Dept., ACM, Inc., 2 Penn Plaza, Suite 701, New York, NY 10121-0701 USA, fax +1 (212) 869 possible alternative implementations. The task is to determine the possible body paths based only on sensor in simulation. An inexpensive, low-energy, easily deployable architecture was also created, which implements

  14. MANAGING HANFORD'S LEGACY NO-PATH-FORWARD WASTES TO DISPOSITION

    SciTech Connect (OSTI)

    WEST LD

    2011-01-13

    The U.S. Department of Energy (DOE) Richland Operations Office (RL) has adopted the 2015 Vision for Cleanup of the Hanford Site. This vision will protect the Columbia River, reduce the Site footprint, and reduce Site mortgage costs. The CH2M HILL Plateau Remediation Company's (CHPRC) Waste and Fuels Management Project (W&FMP) and their partners support this mission by providing centralized waste management services for the Hanford Site waste generating organizations. At the time of the CHPRC contract award (August 2008) slightly more than 9,000 m{sup 3} of waste was defined as 'no-path-forward waste.' The majority of these wastes are suspect transuranic mixed (TRUM) wastes which are currently stored in the low-level Burial Grounds (LLBG), or stored above ground in the Central Waste Complex (CWC). A portion of the waste will be generated during ongoing and future site cleanup activities. The DOE-RL and CHPRC have collaborated to identify and deliver safe, cost-effective disposition paths for 90% ({approx}8,000 m{sup 3}) of these problematic wastes. These paths include accelerated disposition through expanded use of offsite treatment capabilities. Disposal paths were selected that minimize the need to develop new technologies, minimize the need for new, on-site capabilities, and accelerate shipments of transuranic (TRU) waste to the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico.

  15. PATH PLANNING & MEASUREMENT REGISTRATION FOR ROBOTIC STRUCTURAL ASSET MONITORING

    E-Print Network [OSTI]

    Boyer, Edmond

    European Workshop on Structural Health Monitoring July 8-11, 2014. La Cité, Nantes, France Copyright Workshop on Structural Health Monitoring (2014)" #12;INTRODUCTION When considering the applicationPATH PLANNING & MEASUREMENT REGISTRATION FOR ROBOTIC STRUCTURAL ASSET MONITORING S.G. Pierce, C

  16. Knee's Motion Path Relative to the Passive Coupled Kinematic Envelope

    E-Print Network [OSTI]

    Dodd, Kevin A.

    2009-06-15

    , and describe motion relative to them. The coupled envelopes of internal/external (IE), varus/ valgus (VV), and anterior/ posterior (AP) motion and a neutral path were used to describe loaded lunges and a simulated walk cycle. The envelopes were created...

  17. Communication and Path Planning Strategies of a Robotic Coverage Operation

    E-Print Network [OSTI]

    Mostofi, Yasamin

    Communication and Path Planning Strategies of a Robotic Coverage Operation Yuan Yan and Yasamin, and finding a good spot for communication, in order to successfully transmit all the collected bits communication and motion energy costs, while operating in a realistic communication environment and under

  18. A Miniature Biomimetic Robotic Fish and Its Realtime Path Planning

    E-Print Network [OSTI]

    Boyer, Edmond

    A Miniature Biomimetic Robotic Fish and Its Realtime Path Planning Chao Zhou, Zhiqiang Cao, Shuo a novel miniature biomimetic robotic fish based on single link with compact structure, high maneuverability and multiple sensors. The robotic fish mimics the motion of Thunniform mode, and the methods

  19. Path Length Correction for dE/dx Olushakin Olojo

    E-Print Network [OSTI]

    Cinabro, David

    Path Length Correction for dE/dx Olushakin Olojo Department of Mechanical Engineering Wayne State used in CLEO. Due to the recent use of Helium Propane gas in the drift chamber, it is now possible of 50­50% Argon­Ethane to 60­40% Helium­Propane in the CLEO drift chamber has reduced e#ects caused

  20. The Department of Psychology A Path into Clinical Psychology

    E-Print Network [OSTI]

    Liu, Taosheng

    The Department of Psychology Presents A Path into Clinical Psychology Date: Wednesday, March 25, PhD. ­ Dr. Alytia Levendosky is a Professor of Clinical Psychology and the Director of Clinical Psychology program. Her research interests involve interpersonal processes, particularly within attachment

  1. ASSESSING AUTOMATED AND HUMAN PATH PLANNING FOR THE SLOCUM GLIDER

    E-Print Network [OSTI]

    Kremer, Ulrich

    Autonomous Underwater Vehicles (AUVs) are a com- mon tool used by oceanographers to study oceans. Most AUVs be trusted. We have developed a testbed environment to assess the flight paths and energy consumptions by the commercially available glider. Using our simulation testbed, we were able to develop and test an alternative

  2. Minimal Energy Path Planning for Wireless Robots Chia Ching Ooi

    E-Print Network [OSTI]

    Schindelhauer, Christian

    of challenges to judge the tradeoff of the energy usage between robot movement and communications. In additionMinimal Energy Path Planning for Wireless Robots Chia Ching Ooi Albert-Ludwigs-Universit¨at Freiburg Computer Networks and Telematics Georges-K¨ohler-Allee 51, 79110 Freiburg, Germany Email: ooi

  3. Geodesics and Shortest Paths Approach in Pedestrian Motions

    E-Print Network [OSTI]

    Rascle, Michel

    Geodesics and Shortest Paths Approach in Pedestrian Motions B. Nkonga and M. Rascle1 and F.M. are from Geography. We present and revisit here in some details the modeling of pedestrian flows based]. In the context of pedestrian flows [1], and many subsequent papers, e.g. [2, 14]. Our approach here was motivated

  4. Tribal Energy Summit: A Path to Economic Sovereignty

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) is participating in a National Tribal Energy Summit: A Path to Economic Sovereignty September 23–25, 2015, in Washington, D.C. The National Summit supports the Obama Administration’s ongoing commitment to assist tribal efforts to enhance energy security, increase community resiliency, and cultivate a sustainable energy future.

  5. Proc. FORTE 2015, (c) Springer Sliced Path Prefixes

    E-Print Network [OSTI]

    Beyer, Dirk

    . Proc. FORTE 2015, (c) Springer Sliced Path Prefixes: An Effective Method to Enable Refinement Selection Dirk Beyer, Stefan Löwe, and Philipp Wendler University of Passau, Germany Abstract. Automatic a significant impact on the verification effectiveness and efficiency. 1 Introduction In the field of automatic

  6. Ship-based liquid water path estimates in marine stratocumulus

    E-Print Network [OSTI]

    Zuidema, Paquita

    October 2005. [1] We examine liquid water paths (LWPs) derived from ship-based microwave radiometer to microwave absorption model differences are 10­25 g mÀ2 , increasing with LWP. The most recent models produce cycle, through the longwave cloud top radiative cooling and liquid water's ability to absorb solar

  7. Improving WCET by Applying Worst-Case Path Optimizations

    E-Print Network [OSTI]

    Mueller, Frank

    Science Department, North Carolina State University mueller@cs.ncsu.edu Abstract It is advantageous at a higher clock rate, which consumes more energy. Many researchers use profiling to identify the frequently. Compiler writers in recent years have used profile information to detect the frequently executed paths

  8. Bounded Uncertainty Roadmaps for Path Planning Leonidas J. Guibas1

    E-Print Network [OSTI]

    Guibas, Leonidas J.

    Bounded Uncertainty Roadmaps for Path Planning Leonidas J. Guibas1 , David Hsu2 , Hanna Kurniawati2 uncertainty during planning. We in- troduce the notion of a bounded uncertainty roadmap (BURM) and use, and it is not much slower than classic probabilistic roadmap planning algorithms, which ignore uncertainty

  9. Path Deformation Roadmaps Leonard Jaillet and Thierry Simeon

    E-Print Network [OSTI]

    Cortés, Juan

    Path Deformation Roadmaps L´eonard Jaillet and Thierry Sim´eon LAAS-CNRS, Toulouse, France with PRM methods. Our aim is to compute good quality roadmaps that encode the multiple connectedness-PRM technique [12] to constructing compact roadmaps that encode a richer and more suitable information than

  10. Decline design in underground mines using constrained path optimisation

    E-Print Network [OSTI]

    Wormald, Nick

    of optimising the design of an underground mine decline, so as to minimise the costs associated with infras and costs of a real mine, and is optimised using geo- metric techniques for constrained path optimisation (horizontal drives) that connects the access points (points which must be accessed for drilling and blasting

  11. Technology Policy and Economic Growth

    E-Print Network [OSTI]

    Borrus, Michael; Stowsky, Jay

    1997-01-01

    economic growth) and the Pentagon’s Technology Reinvestment20 Tassey, Technology and Economic Growth: Implications forTechnology Policy and Economic Growth Michael Borrus Jay

  12. Theoretical priors on modified growth parametrisations

    SciTech Connect (OSTI)

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

    2010-04-01

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

  13. Equation Chapter 1 Section 1Dynamic Demand Functions.doc A Primer on Estimating Short and Long-Run Elasticities

    E-Print Network [OSTI]

    Equation Chapter 1 Section 1Dynamic Demand Functions.doc A Primer on Estimating Short and Long.edu.lb December 19, 2011 ABSTRACT: Many empirical exercises estimating demand functions, whether in energy time. This paper first reviews a number of commonly used dynamic demand specifications to highlight

  14. Up in Smoke: The Influence of Household Behavior on the Long-Run Impact of Improved Cooking Stoves

    E-Print Network [OSTI]

    Hanna, Rema

    2012-04-30

    It is conventional wisdom that it is possible to reduce exposure to indoor air pollution, improve health outcomes, and decrease greenhouse gas emissions in rural areas of developing countries through the adoption of improved ...

  15. Up in Smoke: The Influence of Household Behavior on the Long-Run Impact of Improved Cooking Stoves

    E-Print Network [OSTI]

    Hanna, Rema

    It is conventional wisdom that it is possible to reduce exposure to indoor air pollution, improve health outcomes, and decrease greenhouse gas emissions in the rural areas of developing countries through the adoption of ...

  16. Wenjia Zhang and Kara M. Kockelman CONGESTION PRICING'S LONG-RUN EFFECTS ON FIRM AND HOUSEHOLD1

    E-Print Network [OSTI]

    Kockelman, Kara M.

    . Pioneering examples include Singapore's Area Licensing Scheme in3 the early 1970s and its Electronic Road, and property taxes),15 and can influence land use decisions rather directly, since trip charges affect travel firms' labor costs,17 productivity, and customer access. Many experts believe that a tax on vehicle

  17. Short-Run Subsidies and Long-Run Adoption of New Health Products: Evidence from a Field Experiment

    E-Print Network [OSTI]

    Dupas, Pascaline

    2012-01-01

    and data collection. The study was funded by the Acumen Fund, the Adessium Foundation, the Exxon Mobil

  18. Modeling the Cost of Climate Policy: Distinguishing Between Alternative Cost Deftitions and Long-Run Cost Dynamics

    E-Print Network [OSTI]

    Modeling the Cost of Climate Policy: Distinguishing Between Alternative Cost Deftitions and Long. There are alternative definitions of cost and the evolution of technologies and preferences is a complex and highly, some are more useful." To be more useful, The Energy Journal, Vol. 24, No. 1. CopyrightQ2003

  19. Low-temperature plasma-deposited silicon epitaxial films: Growth and properties

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

    Demaurex, Bénédicte; Bartlome, Richard; Seif, Johannes P.; Geissbühler, Jonas; Alexander, Duncan T. L.; Jeangros, Quentin; Ballif, Christophe; De Wolf, Stefaan

    2014-08-05

    Low-temperature (? 180 °C) epitaxial growth yields precise thickness, doping, and thermal-budget control, which enables advanced-design semiconductor devices. In this paper, we use plasma-ehanced chemical vapor deposition to grow homo-epitaxial layers and study the different growth modes on crystalline silicon substrates. In particular, we determine the conditions leading to epitaxial growth in light of a model that depends only on the silane concentration in the plasma and the mean free path length of surface adatoms. For such growth, we show that the presence of a persistent defective interface layer between the crystalline silicon substrate and the epitaxial layer stems notmore »only from the growth conditions but also from unintentional contamination of the reactor. As a result of our findings, we determine the plasma conditions to grow high-quality bulk epitaxial films and propose a two-step growth process to obtain device-grade material.« less

  20. Low-temperature plasma-deposited silicon epitaxial films: Growth and properties

    SciTech Connect (OSTI)

    Demaurex, Bénédicte, E-mail: benedicte.demaurex@epfl.ch; Bartlome, Richard; Seif, Johannes P.; Geissbühler, Jonas; Ballif, Christophe; De Wolf, Stefaan [École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin-Film Electronics Laboratory, Maladière 71B, CH-2000 Neuchâtel (Switzerland); Alexander, Duncan T. L.; Jeangros, Quentin [École Polytechnique Fédérale de Lausanne (EPFL), Interdisciplinary Centre for Electron Microscopy (CIME), Station 12, CH-1015 Lausanne (Switzerland)

    2014-08-07

    Low-temperature (?200?°C) epitaxial growth yields precise thickness, doping, and thermal-budget control, which enables advanced-design semiconductor devices. In this paper, we use plasma-enhanced chemical vapor deposition to grow homo-epitaxial layers and study the different growth modes on crystalline silicon substrates. In particular, we determine the conditions leading to epitaxial growth in light of a model that depends only on the silane concentration in the plasma and the mean free path length of surface adatoms. For such growth, we show that the presence of a persistent defective interface layer between the crystalline silicon substrate and the epitaxial layer stems not only from the growth conditions but also from unintentional contamination of the reactor. Based on our findings, we determine the plasma conditions to grow high-quality bulk epitaxial films and propose a two-step growth process to obtain device-grade material.

  1. Low-temperature plasma-deposited silicon epitaxial films: Growth and properties

    SciTech Connect (OSTI)

    Demaurex, Bénédicte; Bartlome, Richard; Seif, Johannes P.; Geissbühler, Jonas; Alexander, Duncan T. L.; Jeangros, Quentin; Ballif, Christophe; De Wolf, Stefaan

    2014-08-07

    Low-temperature (? 180 °C) epitaxial growth yields precise thickness, doping, and thermal-budget control, which enables advanced-design semiconductor devices. In this paper, we use plasma-ehanced chemical vapor deposition to grow homo-epitaxial layers and study the different growth modes on crystalline silicon substrates. In particular, we determine the conditions leading to epitaxial growth in light of a model that depends only on the silane concentration in the plasma and the mean free path length of surface adatoms. For such growth, we show that the presence of a persistent defective interface layer between the crystalline silicon substrate and the epitaxial layer stems not only from the growth conditions but also from unintentional contamination of the reactor. Based on our findings, we determine the plasma conditions to grow high-quality bulk epitaxial films and propose a two-step growth process to obtain device-grade material.

  2. On the Path to Low Cost Renewable Fuels, an Important Breakthrough...

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

    On the Path to Low Cost Renewable Fuels, an Important Breakthrough On the Path to Low Cost Renewable Fuels, an Important Breakthrough April 18, 2013 - 4:10pm Addthis NREL Scientist...

  3. Scientists at ALS Find New Path to More Efficient Organic Solar...

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

    Scientists at ALS Find New Path to More Efficient Organic Solar Cells Scientists at ALS Find New Path to More Efficient Organic Solar Cells Print Monday, 07 January 2013 00:00...

  4. Finding a Hamiltonian Path in a Cube with Specified Turns is Hard

    E-Print Network [OSTI]

    Abel, Zachary Ryan

    We prove the NP-completeness of finding a Hamiltonian path in an N × N × N cube graph with turns exactly at specified lengths along the path. This result establishes NP-completeness of Snake Cube puzzles: folding a chain ...

  5. Automatic Search of Differential Path in MD4 Pierre-Alain Fouque, Gatan Leurent, Phong Nguyen

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Search of Differential Path in MD4 Pierre-Alain Fouque, Gaëtan Leurent, Phong Nguyen paths were found "by hand". In this paper, we present an algorithm which automatically finds suitable

  6. A Path to Reduce Methane Emissions from Gas Systems | Department...

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

    gas. This natural gas revolution is driving economic growth across the country, lowering energy prices and creating jobs. It has also contributed to an American manufacturing...

  7. Moisture Risk in Unvented Attics Due to Air Leakage Paths

    SciTech Connect (OSTI)

    Prahl, D.; Shaffer, M.

    2014-11-01

    IBACOS completed an initial analysis of moisture damage potential in an unvented attic insulated with closed-cell spray polyurethane foam. To complete this analysis, the research team collected field data, used computational fluid dynamics to quantify the airflow rates through individual airflow (crack) paths, simulated hourly flow rates through the leakage paths with CONTAM software, correlated the CONTAM flow rates with indoor humidity ratios from Building Energy Optimization software, and used Warme und Feuchte instationar Pro two-dimensional modeling to determine the moisture content of the building materials surrounding the cracks. Given the number of simplifying assumptions and numerical models associated with this analysis, the results indicate that localized damage due to high moisture content of the roof sheathing is possible under very low airflow rates. Reducing the number of assumptions and approximations through field studies and laboratory experiments would be valuable to understand the real-world moisture damage potential in unvented attics.

  8. Moisture Risk in Unvented Attics Due to Air Leakage Paths

    SciTech Connect (OSTI)

    Prahl, D.; Shaffer, M.

    2014-11-01

    IBACOS completed an initial analysis of moisture damage potential in an unvented attic insulated with closed-cell spray polyurethane foam. To complete this analysis, the research team collected field data, used computational fluid dynamics to quantify the airflow rates through individual airflow (crack) paths, simulated hourly flow rates through the leakage paths with CONTAM software, correlated the CONTAM flow rates with indoor humidity ratios from Building Energy Optimization software, and used Wärme und Feuchte instationär Pro two-dimensional modeling to determine the moisture content of the building materials surrounding the cracks. Given the number of simplifying assumptions and numerical models associated with this analysis, the results indicate that localized damage due to high moisture content of the roof sheathing is possible under very low airflow rates. Reducing the number of assumptions and approximations through field studies and laboratory experiments would be valuable to understand the real-world moisture damage potential in unvented attics.

  9. Tackling Higher Derivative Ghosts with the Euclidean Path Integral

    E-Print Network [OSTI]

    Michele Fontanini; Mark Trodden

    2011-02-21

    An alternative to the effective field theory approach to treat ghosts in higher derivative theories is to attempt to integrate them out via the Euclidean path integral formalism. It has been suggested that this method could provide a consistent framework within which we might tolerate the ghost degrees of freedom that plague, among other theories, the higher derivative gravity models that have been proposed to explain cosmic acceleration. We consider the extension of this idea to treating a class of terms with order six derivatives, and find that for a general term the Euclidean path integral approach works in the most trivial background, Minkowski. Moreover we see that even in de Sitter background, despite some difficulties, it is possible to define a probability distribution for tensorial perturbations of the metric.

  10. Gas-path leakage seal for a turbine

    DOE Patents [OSTI]

    Bagepalli, B.S.; Aksit, M.F.; Farrell, T.R.

    1999-08-10

    A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a turbine (such as combustor casing segments of a gas turbine). The seal includes a flexible and generally imperforate metal sheet assemblage having opposing first and second surfaces and two opposing raised edges extending a generally identical distance above and below the surfaces. A first cloth layer assemblage has a thickness generally equal to the previously-defined identical distance and is superimposed on the first surface between the raised edges. A second cloth layer assemblage is generally identical to the first cloth layer assemblage and is superimposed on the second surface between the raised edges. 5 figs.

  11. A HYBRID GRASP WITH PERTURBATIONS AND ADAPTIVE PATH-RELINKING FOR THE STEINER PROBLEM IN GRAPHS

    E-Print Network [OSTI]

    Makarychev, Konstantin

    with weight perturbations and adaptive path-relinking heuristic (HGP-PR) for the Steiner problem in graphs

  12. Path integral representation of the evolution operator for the Dirac equation

    E-Print Network [OSTI]

    Alexander S. Lukyanenko; Inna A. Lukyanenko

    2006-05-25

    A path integral representation of the evolution operator for the four-dimensional Dirac equation is proposed. A quadratic form of the canonical momenta regularizes the original representation of the path integral in the electron phase space. This regularization allows to obtain a representation of the path integral over trajectories in the configuration space, i.e. in the Minkowsky space. This form of the path integral is useful for the formulation of perturbation theory in an external electromagnetic field.

  13. Essential paths space on ADE SU(3) graphs: A geometric approach

    E-Print Network [OSTI]

    Jesus A. Pineda; E. Isasi; M. I. Caicedo

    2015-04-10

    For simply laced $SU(3)$ graphs we offer a geometric understanding of the path creation and annihilation operators for $SU(3)$ in terms of creation and annihilation of sequences of three vertices forming triangular cells or collapsed triangular cells. We prove that the space of paths of a given length can be decomposed as a direct sum of orthogonal sub-spaces constructed by recurrent applications of the path creation operator on subspaces of essential paths of shorter length.

  14. Gouy phase in non-classical paths in triple-slit interference experiment

    E-Print Network [OSTI]

    Irismar da Paz; Carlos Vieira; Robert Ducharme; Luis Cabral; Helder Alexander; Marcos Sampaio

    2015-10-14

    We propose a simple model to study the Gouy phase effect in the triple-slit experiment in which we consider a non-classical path. The Gouy phase differs for classical or non-classical paths as it depends on the propagation time. In this case the Gouy phase difference changes the Sorkin parameter $\\kappa$ used to estimate non-classical path contribution in a nontrivial way shedding some light in the implementation of experiments to detect non-classical path contributions.

  15. Strategic Growth Initiative (Michigan)

    Broader source: Energy.gov [DOE]

    A joint venture between Michigan Department of Agriculture and Rural Development (MDARD) and the Michigan Economic Development Corporation (MEDC), the Strategic Growth Initiative Grant Program was...

  16. Evaluation of a total energy sensor for glide path control 

    E-Print Network [OSTI]

    Oseguera, Rosa Maria

    1987-01-01

    of optimization problems and boundary conditions. The performance index was defined in terms of altitude h (relative and absolute), or path inclination 7 (relative and absolute) to determine the optimal trajectory on take-off through a wind shear. Resulting... flow. The subsequent mass flow was measured by a constant-temperature hot film probe in the duct. Airspeed, altitude, and climb speed were recorded using an analog and a digital recording system. The wind field was modeled approximately...

  17. Path Integral Quantization of Landau-Ginzburg Theory

    E-Print Network [OSTI]

    Walaa. I. Eshraim

    2013-01-11

    Hamilton-Jacobi approach for a constrained system is discussed. The equation of motion for a singular systems are obtained as total differential equations in many variables. The integrability conditions are investigated without using any gauge fixing condition. The path integral quantization for systems with finite degrees of freedom is applied to the field theories with constraints. The Landau-Ginzburg theory is investigated in details.

  18. Path dependence, its critics and the quest for `historical economics' Paul A. David

    E-Print Network [OSTI]

    Tesfatsion, Leigh

    Path dependence, its critics and the quest for `historical economics' By Paul A. David All Souls@leland.stanford.edu> #12;2 2 Path dependence, its critics and the quest for `historical economics'1 1. Introduction for publication in Evolution and Path Dependence in Economic Ideas: Past and Present, edited by P. Garrouste and S

  19. Efficient Block-Based Parameterized Timing Analysis Covering All Potentially Critical Paths

    E-Print Network [OSTI]

    Najm, Farid N.

    Efficient Block-Based Parameterized Timing Analysis Covering All Potentially Critical Paths Khaled in the parameter space, by reporting all paths that can become critical. Using an efficient pruning algorithm, only) but by knowledge of the paths that can become critical at nearby points in parameter space. We give a formal

  20. Critical Path Analysis for the Execution of Parallel and Distributed Programs Cui-Qing Yang

    E-Print Network [OSTI]

    Miller, Barton P.

    Critical Path Analysis for the Execution of Parallel and Distributed Programs Cui-Qing Yang. One example of such techniques finds the critical path through a graph of a program's execution history. This paper presents the design, implementation and test- ing of the critical path analysis

  1. Probabilistic Critical Path Identification for Cost-Effective Monitoring of Service-based Systems

    E-Print Network [OSTI]

    Schneider, Jean-Guy

    Probabilistic Critical Path Identification for Cost-Effective Monitoring of Service- based Systems. In volatile operating environments, the critical path of a SBS is probabilistic. As such, it is important to estimate the criticalities of the execution paths and the component services, i.e., the probabilities

  2. Probabilistic Critical Path Identification for Cost-Effective Monitoring of Service-based Web Applications

    E-Print Network [OSTI]

    Schneider, Jean-Guy

    Probabilistic Critical Path Identification for Cost-Effective Monitoring of Service-based Web@hust.edu.cn Steve Versteeg CA Labs Melbourne, Australia 3122 steve.versteeg@ca.com ABSTRACT The critical path as it determines the response time of the Web application. In volatile operating environments, the critical path

  3. Path Integral Monte Carlo Calculation of the Deuterium Hugoniot B. Militzer and D. M. Ceperley

    E-Print Network [OSTI]

    Militzer, Burkhard

    Path Integral Monte Carlo Calculation of the Deuterium Hugoniot B. Militzer and D. M. Ceperley-Champaign, Urbana, IL 61801 (January 21, 2000) Restricted path integral Monte Carlo simulations have been used#11;ects and the dependence on the time step of the path integral. Further, we compare the results

  4. arXiv:physics/000104722Jan2000 Path Integral Monte Carlo Calculation of the Deuterium Hugoniot

    E-Print Network [OSTI]

    Militzer, Burkhard

    arXiv:physics/000104722Jan2000 Path Integral Monte Carlo Calculation of the Deuterium Hugoniot B University of Illinois at Urbana-Champaign, Urbana, IL 61801 (January 21, 2000) Restricted path integral of the path integral. Further, we compare the results obtained with a free particle nodal restriction

  5. Calculation of heat capacities of light and heavy water by path-integral molecular dynamics

    E-Print Network [OSTI]

    Nielsen, Steven O.

    Calculation of heat capacities of light and heavy water by path-integral molecular dynamics 30 September 2005 As an application of atomistic simulation methods to heat capacities, path-integral has estimated the heat capacities too high, the quantum simulation based on path-integral molecular

  6. Path integral evaluation of the quantum instanton rate constant for proton transfer in a polar solvent

    E-Print Network [OSTI]

    Miller, William H.

    Path integral evaluation of the quantum instanton rate constant for proton transfer in a polar developed by Azzouz and Borgis. Monte Carlo path integral methods are used to carry out the calculations evaluated for comparison using the present path integral approach. A technique is then introduced

  7. Random Disambiguation Paths for Traversing a Mapped Hazard Field Carey E. Priebe,1

    E-Print Network [OSTI]

    Priebe, Carey E.

    disambiguation path (RDP), which is a curve-valued random variable parametrized by a binary tree with particular Logistics 52: 285­292, 2005. Keywords: random path; path planning; marked point pattern; mine; minefield 1. INTRODUCTION Suppose that a spatial point process has generated true and false detections, and each detection

  8. Huliq:Breaking News Submit News Login Linear Nanotubes Offer Path To High-Performance Electronics

    E-Print Network [OSTI]

    Rogers, John A.

    Huliq:Breaking News Submit News Login Linear Nanotubes Offer Path To High-Performance Electronics.MoSys.com Page 1 of 2Linear nanotubes offer path to high-performance electronics | Huliq: Breaking News 3/28/2007http://www.huliq.com/16423/linear-nanotubes-offer-path-to-high-performance-electronics #12;compared

  9. Integrated Control-Path Design and Error Recovery in the Synthesis of Digital

    E-Print Network [OSTI]

    Chakrabarty, Krishnendu

    11 Integrated Control-Path Design and Error Recovery in the Synthesis of Digital Microfluidic Lab that incorporates control paths and an error- recovery mechanism in the design of a digital microfluidic lab, compared to a baseline chip design, the biochip with a control path can reduce the completion time by 30

  10. Graph Based Representation of Walden’s Paths in Drupal 7 

    E-Print Network [OSTI]

    Singh, Swati

    2015-04-30

    The Walden’s Paths Project is used by different communities in order to create and use linear paths that link to documents available on the web. Walden’s Paths has been implemented as a web application using Drupal where ...

  11. Sustainable Infrastructure Practices Bicycle Paths & Parking Areas, Page 1 UC SANTA BARBARA

    E-Print Network [OSTI]

    Bigelow, Stephen

    Sustainable Infrastructure Practices ­ Bicycle Paths & Parking Areas, Page 1 UC SANTA BARBARA Sustainable Infrastructure Practices ­ Bicycle Paths and Parking Areas Contact: Administrative Services BICYCLE PATHS AND PARKING AREAS OVERVIEW The bicycle system at UCSB is a primary element of the campus

  12. Path Deformation Roadmaps: Compact Graphs with Useful Cycles for Motion Planning

    E-Print Network [OSTI]

    Cortés, Juan

    Path Deformation Roadmaps: Compact Graphs with Useful Cycles for Motion Planning L´eonard Jaillet quality roadmaps that encode the multiple connectedness of the configuration space inside small but yet Roadmaps (PDR) rely on a notion of path deformability indicating whether or not a given path can

  13. FESAC White Paper Path to Market for Compact Systems July 2012 The Path to Market for Compact Modular Fusion Power Cores1

    E-Print Network [OSTI]

    Modular Fusion Power Cores1 S. Woodruff, R. L. Miller To take any new energy technology to market, we have: Market, Path, and Compact Fusion Systems. US Electricity Market "Electricity demand (including retail. Mattor, D. L. Stoulil, R. Miller, T. Marston. Woodruff Path to market for compact modular fusion power

  14. Path-sensitive analysis for reducing rollback overheads

    DOE Patents [OSTI]

    O'Brien, John K.P.; Wang, Kai-Ting Amy; Yamashita, Mark; Zhuang, Xiaotong

    2014-07-22

    A mechanism is provided for path-sensitive analysis for reducing rollback overheads. The mechanism receives, in a compiler, program code to be compiled to form compiled code. The mechanism divides the code into basic blocks. The mechanism then determines a restore register set for each of the one or more basic blocks to form one or more restore register sets. The mechanism then stores the one or more register sets such that responsive to a rollback during execution of the compiled code. A rollback routine identifies a restore register set from the one or more restore register sets and restores registers identified in the identified restore register set.

  15. Graphene-based battery electrodes having continuous flow paths

    DOE Patents [OSTI]

    Zhang, Jiguang; Xiao, Jie; Liu, Jun; Xu, Wu; Li, Xiaolin; Wang, Deyu

    2014-05-24

    Some batteries can exhibit greatly improved performance by utilizing electrodes having randomly arranged graphene nanosheets forming a network of channels defining continuous flow paths through the electrode. The network of channels can provide a diffusion pathway for the liquid electrolyte and/or for reactant gases. Metal-air batteries can benefit from such electrodes. In particular Li-air batteries show extremely high capacities, wherein the network of channels allow oxygen to diffuse through the electrode and mesopores in the electrode can store discharge products.

  16. An Open-path Laser Transmissometer for Atmospheric Extinction Measurements

    SciTech Connect (OSTI)

    Chandran, P. M. Satheesh; Krishnakumar, C. P.; Varma, Ravi [Department of Physics, National Institute of Technology Calicut, Calicut, Kerala 673 601 (India); Yuen, Wangki; Rood, Mark J. [Department of Civil and Environmental Engineering, University of Illinois Urbana-Champaign, Urbana (United States)

    2011-10-20

    A transmissometer is an optical instrument which measures transmitted intensity of monochromatic light over a fixed pathlength. Prototype of a simple laser transmissometer has been developed for transmission (or extinction) measurements through suspended absorbers and scatterers in the atmosphere over tens of meters. Instrument consists of a continuous green diode pumped solid state laser, transmission optics, photodiode detectors and A/D data acquisition components. A modulated laser beam is transmitted and subsequently reflected and returned to the unit by a retroreflecting mirror assembly placed several tens of meters away. Results from an open-path field measurement of the instrument are described.

  17. Multi-path transportation futures study: Results from Phase 1

    SciTech Connect (OSTI)

    Patterson, Phil; Singh, Margaret; Plotkin, Steve; Moore, Jim

    2007-03-09

    This PowerPoint briefing provides documentation and details for Phase 1 of the Multi-Path Transportation Futures Study, which compares alternative ways to make significant reductions in oil use and carbon emissions from U.S. light vehicles to 2050. Phase I, completed in 2006, was a scoping study, aimed at identifying key analytic issues and constructing a study design. The Phase 1 analysis included an evaluation of several pathways and scenarios; however, these analyses were limited in number and scope and were designed to be preliminary.

  18. Amplification of maximally-path-entangled number states

    SciTech Connect (OSTI)

    Agarwal, G. S.; Rai, Amit [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States); Chaturvedi, S. [School of Physics, University of Hyderabad, Hyderabad 500046 (India)

    2010-04-15

    We examine the behavior of a non-Gaussian state like the maximally path-entangled number state commonly known as a N00N state under phase-insensitive amplification. We derive an analytical result for the density matrix of the N00N state for arbitrary gain of the amplifier. We consider cases of both symmetric and antisymmetric amplification of the two modes of the N00N state. We quantitatively evaluate the loss of entanglement by the amplifier in terms of the logarithmic negativity parameter. We find that N00N states are more robust than their Gaussian counterparts.

  19. A Path to High-Concentration Luminescent Solar Concentrators

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.TheoryTuesday, August 10, 20102016 News BelowAsked toUSC-Aiken,A NewA NewPath to

  20. TowPath Renewable Ventures | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeterInformation PolicyTinna GroupToppan Printing CoTowPath Renewable

  1. Following the Technical Career Path | GE Global Research

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journal Article) |FinalIndustrialFollowing the Technical Career Path Click

  2. Modeling tin whisker growth.

    SciTech Connect (OSTI)

    Weinberger, Christopher Robert

    2013-08-01

    Tin, lead, and lead-tin solders are the most commonly used solders due to their low melting temperatures. However, due to the toxicity problems, lead must now be removed from solder materials. This has lead to the re-emergence of the issue of tin whisker growth. Tin whiskers are a microelectronic packaging issue because they can lead to shorts if they grow to sufficient length. However, the cause of tin whisker growth is still not well understood and there is lack of robust methods to determine when and if whiskering will be a problem. This report summarizes some of the leading theories on whisker growth and attempts to provide some ideas towards establishing the role microstructure plays in whisker growth.

  3. Renewable Energy Growth Program

    Broader source: Energy.gov [DOE]

    In 2014, Act H 7727 created the Renewable Energy Growth (REG) program with the goal to promote installation of grid connected renewable energy within the load zones of electric distribution...

  4. Robust Growth Determinants

    E-Print Network [OSTI]

    Doppelhofer, Gernot; Weeks, Melvyn

    2011-01-31

    growth in European regions, allowing for spa- tial spillovers across regions. The robust model averaging approach can also account for spatial clustering of errors by accommodating outliers and heteroscedastic errors. In both Classical and Bayesian...

  5. FGF growth factor analogs

    DOE Patents [OSTI]

    Zamora, Paul O. (Gaithersburg, MD); Pena, Louis A. (Poquott, NY); Lin, Xinhua (Plainview, NY); Takahashi, Kazuyuki (Germantown, MD)

    2012-07-24

    The present invention provides a fibroblast growth factor heparin-binding analog of the formula: ##STR00001## where R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, Y and Z are as defined, pharmaceutical compositions, coating compositions and medical devices including the fibroblast growth factor heparin-binding analog of the foregoing formula, and methods and uses thereof.

  6. An optimal path to transition in a duct

    E-Print Network [OSTI]

    Biau, Damien; 10.1098/rsta.2008.0191

    2010-01-01

    This paper is concerned with the transition of the laminar flow in a duct of square cross-section. Like in the similar case of the pipe flow, the motion is linearly stable for all Reynolds numbers, rendering this flow a suitable candidate for a study of the 'bypass' path to turbulence. It has already been shown \\citep{Biau_JFM_2008} that the classical linear optimal perturbation problem, yielding optimal disturbances in the form of longitudinal vortices, fails to provide an 'optimal' path to turbulence, i.e. optimal perturbations do not elicit a significant nonlinear response from the flow. Previous simulations have also indicated that a pair of travelling waves generates immediately, by nonlinear quadratic interactions, an unstable mean flow distortion, responsible for rapid breakdown. By the use of functions quantifying the sensitivity of the motion to deviations in the base flow, the 'optimal' travelling wave associated to its specific defect is found by a variational approach. This optimal solution is the...

  7. N-slit interference: Path integrals, Bohmian trajectories

    E-Print Network [OSTI]

    Valeriy I Sbitnev

    2010-01-25

    Path integrals give a possibility to compute in details routes of particles from particle sources through slit gratings and further to detectors. The path integral for a particle passing through the Gaussian slit results in the Gaussian wavepacket. The wavepackets prepared on N slits and superposed together give rise to interference pattern in the near-field zone. It transforms to diffraction in the far-field zone represented by divergent principal rays, at that all rays are partitioned from each other by (N-2) subsidiary rays. The Bohmian trajectories in the near-field zone of N-slit gratings show wavy behavior. And they become straight in the far-field zone. The trajectories show zigzag behavior on the interference Talbot carpet (ratio of particle wavelength to a distance between slits are much smaller than 1 and N>>1). Interference from the the N-slit gratings is simulated by scattering monochromatic neutrons (wavelength=0.5 nm). Also we have considered simulation of interference fringes arising at scattering on an N-slit grating of fullerene molecules (according to the real experiment stated in e-print 1001.0468).

  8. Path integrals and symmetry breaking for optimal control theory

    E-Print Network [OSTI]

    H. J. Kappen

    2005-10-07

    This paper considers linear-quadratic control of a non-linear dynamical system subject to arbitrary cost. I show that for this class of stochastic control problems the non-linear Hamilton-Jacobi-Bellman equation can be transformed into a linear equation. The transformation is similar to the transformation used to relate the classical Hamilton-Jacobi equation to the Schr\\"odinger equation. As a result of the linearity, the usual backward computation can be replaced by a forward diffusion process, that can be computed by stochastic integration or by the evaluation of a path integral. It is shown, how in the deterministic limit the PMP formalism is recovered. The significance of the path integral approach is that it forms the basis for a number of efficient computational methods, such as MC sampling, the Laplace approximation and the variational approximation. We show the effectiveness of the first two methods in number of examples. Examples are given that show the qualitative difference between stochastic and deterministic control and the occurrence of symmetry breaking as a function of the noise.

  9. DISPOSITION PATHS FOR ROCKY FLATS GLOVEBOXES: EVALUATING OPTIONS

    SciTech Connect (OSTI)

    Lobdell, D.; Geimer, R.; Larsen, P.; Loveland, K.

    2003-02-27

    The Kaiser-Hill Company, LLC has the responsibility for closure activities at the Rocky Flats Environmental Technology Site (RFETS). One of the challenges faced for closure is the disposition of radiologically contaminated gloveboxes. Evaluation of the disposition options for gloveboxes included a detailed analysis of available treatment capabilities, disposal facilities, and lifecycle costs. The Kaiser-Hill Company, LLC followed several processes in determining how the gloveboxes would be managed for disposition. Currently, multiple disposition paths have been chosen to accommodate the needs of the varying styles and conditions of the gloveboxes, meet the needs of the decommissioning team, and to best manage lifecycle costs. Several challenges associated with developing a disposition path that addresses both the radiological and RCRA concerns as well as offering the most cost-effective solution were encountered. These challenges included meeting the radiological waste acceptance criteria of available disposal facilities, making a RCRA determination, evaluating treatment options and costs, addressing void requirements associated with disposal, and identifying packaging and transportation options. The varying disposal facility requirements affected disposition choices. Facility conditions that impacted decisions included radiological and chemical waste acceptance criteria, physical requirements, and measurement for payment options. The facility requirements also impacted onsite activities including management strategies, decontamination activities, and life-cycle cost.

  10. Why is GDP growth linear?

    E-Print Network [OSTI]

    Becker, Jörg D

    2015-01-01

    In many European countries the growth of the real GDP per capita has been linear since 1950. An explanation for this linearity is still missing. We propose that in artificial intelligence we may find models for a linear growth of performance. We also discuss possible consequences of the fact that in systems with linear growth the percentage growth goes to zero.

  11. Rapid Mixing of Glauber Dynamics of Gibbs Ensembles via Aggregate Path Coupling and Large Deviations Methods

    E-Print Network [OSTI]

    Yevgeniy Kovchegov; Peter T. Otto

    2015-08-11

    In this paper, we present a novel extension to the classical path coupling method to statistical mechanical models which we refer to as aggregate path coupling. In conjunction with large deviations estimates, we use this aggregate path coupling method to prove rapid mixing of Glauber dynamics for a large class of statistical mechanical models, including models that exhibit discontinuous phase transitions which have traditionally been more difficult to analyze rigorously. The parameter region for rapid mixing for the generalized Curie-Weiss-Potts model is derived as a new application of the aggregate path coupling method.

  12. Path Integral Solution of PT-/non-PT-Symmetric and non-Hermitian Morse Potential

    E-Print Network [OSTI]

    Nalan Kandirmaz; Ramazan Sever

    2008-12-14

    Path integral solutions are obtained for the the PT-/non-PT-Symmetric and non-Hermitian Morse Potential. Energy eigenvalues and the corresponding wave functions are obtained.

  13. From Dirac Notation to Probability Bracket Notation: Time Evolution and Path Integral under Wick Rotations

    E-Print Network [OSTI]

    Xing M. Wang

    2009-01-30

    In this article, we continue to investigate the application of Probability Bracket Notation (PBN). We show that, under Special Wick Rotation (caused by imaginary-time rotation), the Schrodinger equation of a conservative system and its path integral in Dirac rotation are simultaneously shifted to the master equation and its Euclidean path integral of an induced micro diffusion in PBN. Moreover, by extending to General Wick Rotation and using the anti-Hermitian wave-number operator, we execute the path integral in Dirac notation side-by-side with the Euclidean path integral in PBN, and derive the Euclidean Lagrangian of induced diffusions and Smoluchowski equation.

  14. Connection between GRW "spontaneous collapse" and Mensky's "restricted path integral" models

    E-Print Network [OSTI]

    Roman Sverdlov

    2015-02-09

    In this paper we will show how Mensky's model of "restricted path integrals" can be derived from GRW "spontaneous collapse" model.

  15. Peakons arising as particle paths beneath small-amplitude water waves

    E-Print Network [OSTI]

    Delia Ionescu-Kruse

    2011-06-20

    We present a new kind of particle path in constant vorticity water of finite depth, within the framework of small-amplitude waves.

  16. Metabolic paths in world economy and crude oil price

    E-Print Network [OSTI]

    Picciolo, Francesco; Ruzzenenti, Franco

    2015-01-01

    In 1983 Hamilton demonstrated the correlation between the price of oil and gross national product for the U.S. economy. A prolific literature followed exploring the potential correlation of oil prices with other important indices like inflation, industrial production, and food prices, using increasingly refined tools. Our work sheds new light on the role of oil prices in shaping the world economy by investigating the metabolic paths of value across trade between 1960 and 2010, by means of Markov Chain analysis. We show that the interdependence of countries' economies are strictly (anti)correlated to the price of oil. We observed a remarkably high correlation of 0.85, unmatched by any former study addressing the correlation between oil price and major economic indicators.

  17. Light absorption cell combining variable path and length pump

    DOE Patents [OSTI]

    Prather, W.S.

    1993-12-07

    A device is described for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid there between and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data. 2 figures.

  18. Light absorption cell combining variable path and length pump

    DOE Patents [OSTI]

    Prather, William S. (2419 Dickey Rd., Augusta, GA 30906)

    1993-01-01

    A device for use in making spectrophotometric measurements of fluid samples. In particular, the device is a measurement cell containing a movable and a fixed lens with a sample of the fluid therebetween and through which light shines. The cell is connected to a source of light and a spectrophotometer via optic fibers. Movement of the lens varies the path length and also pumps the fluid into and out of the cell. Unidirectional inlet and exit valves cooperate with the movable lens to assure a one-way flow of fluid through the cell. A linear stepper motor controls the movement of the lens and cycles it from a first position closer to the fixed lens and a second position farther from the fixed lens, preferably at least 10 times per minute for a nearly continuous stream of absorption spectrum data.

  19. Multi-Path Transportation Futures Study: Results from Phase 1

    SciTech Connect (OSTI)

    Phil Patterson, P.; Singh, M.; Plotkin, S.; Moore, J.

    2007-03-09

    Presentation reporting Phase 1 results, 3/9/2007. Projecting the future role of advanced drivetrains and fuels in the light vehicle market is inherently difficult, given the uncertainty (and likely volatility) of future oil prices, inadequate understanding of likely consumer response to new technologies, the relative infancy of several important new technologies with inevitable future changes in their performance and costs, and the importance — and uncertainty — of future government marketplace interventions (e.g., new regulatory standards or vehicle purchase incentives). The Multi-Path Transportation Futures (MP) Study has attempted to improve our understanding of this future role by examining several scenarios of vehicle costs, fuel prices, government subsidies, and other key factors. These are projections, not forecasts, in that they try to answer a series of “what if” questions without assigning probabilities to most of the basic assumptions.

  20. Path Integral Confined Dirac Fermions in a Constant Magnetic Field

    E-Print Network [OSTI]

    Abdeldjalil Merdaci; Ahmed Jellal; Lyazid Chetouani

    2014-04-17

    We consider Dirac fermion confined in harmonic potential and submitted to a constant magnetic field. The corresponding solutions of the energy spectrum are obtained by using the path integral techniques. For this, we begin by establishing a symmetric global projection, which provides a symmetric form for the Green function. Based on this, we show that it is possible to end up with the propagator of the harmonic oscillator for one charged particle. After some transformations, we derive the normalized wave functions and the eigenvalues in terms of different physical parameters and quantum numbers. By interchanging quantum numbers, we show that our solutions possed interesting properties. The density of current and the non-relativistic limit are analyzed where different conclusions are obtained.

  1. Journal of Crystal Growth ] (

    E-Print Network [OSTI]

    ) at high pressure of CO2 (initial PCO2 ¼ 55 bar) and moderate to high temperature (30 and 90 1C) was used and the dissolved quantity of CO2 have a significant effect on the average particle size, specific surface areaJournal of Crystal Growth ] (

  2. Performance and Dynamic Stability of General-Path Centrifugal Pendulum Vibration

    E-Print Network [OSTI]

    Shaw, Steven W.

    Performance and Dynamic Stability of General-Path Centrifugal Pendulum Vibration Absorbers A. S. Alsuwaiyan and S. W. Shaw Department of Mechanical Engineering Michigan State University, East Lansing, MI 48824, USA RUNNING HEADLINE: GENERAL PATH CPVAS. #12;Abstract Centrifugal pendulum vibration absorbers

  3. Choosing Internet Paths with High Bulk Transfer Capacity Jacob A. Strauss

    E-Print Network [OSTI]

    precisely, they would like to know the bulk transfer capacity (BTC) of a given path. This thesis compares the ability of several BTC estimation methods to predict which of a pair of Internet paths will have the higher measured BTC. Methods tested include TCP loss rate models, an available bandwidth measuring tool

  4. Remarks on low-energy approximations for Feynman path integration on the sphere

    E-Print Network [OSTI]

    Yoshihisa Miyanishi

    2015-01-15

    We shall define the oscillatory integrals by action integrals, Van Vleck determinant and Dewitt curvature. Our method employs action integrals along the shortest paths. We have the strong but not uniform convergence of time slicing Feynman path integrals for low energy functions.

  5. Switching-path distribution in multidimensional systems H. B. Chan,1,* M. I. Dykman,2,

    E-Print Network [OSTI]

    Dykman, Mark

    Switching-path distribution in multidimensional systems H. B. Chan,1,* M. I. Dykman,2, and C; published 13 November 2008 We explore the distribution of paths followed in fluctuation-induced switching demonstration of the lack of time-reversal symmetry in switching of systems far from thermal equilibrium

  6. Transmission Design at the National Level: Benefits, Risks and Possible Paths Forward

    E-Print Network [OSTI]

    Electric Energy System #12;Transmission Design at the National Level: Benefits, Risks and Possible Paths Electricity Coordinating Council (WECC) Dale Osborn, Consulting Advisor, Transmission Management, MidwestTransmission Design at the National Level: Benefits, Risks and Possible Paths Forward Future Grid

  7. LETTER Communicated by Daniel Bush Oscillator-Interference Models of Path Integration

    E-Print Network [OSTI]

    Orchard, Jeffery J.

    and long-range inhibition connectivity can spontaneously gen- erate grid-cell-like activity patterns of Technology doi:10.1162/NECO_a_00701 #12;Oscillator-Based Path Integration Without Theta 549 and long-rangeLETTER Communicated by Daniel Bush Oscillator-Interference Models of Path Integration Do

  8. A critical exponent for shortest-path scaling in continuum percolation

    E-Print Network [OSTI]

    Kroese, Dirk P.

    A critical exponent for shortest-path scaling in continuum percolation Tim Brereton1 , Christian to study the scaling behavior of shortest path lengths in continuum percolation. These studies suggest that the critical exponent governing this scaling is the same for both continuum and lattice percolation. We use

  9. Spin Path Integral And Quantum Mechanics In Rotating Reference of Frame

    E-Print Network [OSTI]

    Tong Chern; Wu Ning; Yu Yue

    2011-04-13

    We developed a path integral formalism for the quantum mechanics in a rotating reference of frame, and proposed a spin path integral description for the spin degrees of freedom in it. We have also give some examples for the applications of our foramlism.

  10. Path Following Using Transverse Feedback Linearization: Application to a Maglev Positioning System

    E-Print Network [OSTI]

    Maggiore, Manfredi

    . This methodology is applied to a five degree-of-freedom (5-DOF) magnetically levitated positioning system positioning stage, magnetic levitation. 1 Introduction The path following control problem (PFP) is chiefly, for instance, the simple problem of making a planar kinematic point-mass vehicle follow a path on the plane

  11. The Heavy Ion Fusion Virtual National Laboratory The Heavy Ion Path to Fusion Energy

    E-Print Network [OSTI]

    -consistent power plant design for a multi- beam induction linac, final focus and chamber propagationThe Heavy Ion Fusion Virtual National Laboratory The Heavy Ion Path to Fusion Energy Grant Logan Director Heavy-Ion Fusion Virtual National Laboratory Presented to FESAC Workshop on Development Paths

  12. A NOTE ON SMALL ON-LINE RAMSEY NUMBERS FOR PATHS AND THEIR GENERALIZATION

    E-Print Network [OSTI]

    Pralat, Pawel

    A NOTE ON SMALL ON-LINE RAMSEY NUMBERS FOR PATHS AND THEIR GENERALIZATION PAWEL PRALAT Abstract. In this note, we consider the on-line Ramsey numbers R(Pn) for paths and their generalization. The standard on-line Ramsey game is played on an un- bounded set of vertices, whereas the new variant of the game we consider

  13. PATHS, TREES, AND THE COMPUTATIONAL STRENGTH OF SOME RAMSEY-TYPE THEOREMS

    E-Print Network [OSTI]

    Cholak, Peter

    PATHS, TREES, AND THE COMPUTATIONAL STRENGTH OF SOME RAMSEY-TYPE THEOREMS A Dissertation Submitted Rights Reserved #12;PATHS, TREES, AND THE COMPUTATIONAL STRENGTH OF SOME RAMSEY-TYPE THEOREMS Abstract principles and computational strength. In particular, much work has been done on theorems similar to Ramsey

  14. Constant Time Queries for Energy Efficient Paths in Multi-Hop Wireless Networks

    E-Print Network [OSTI]

    Matijevic, Domagoj

    Constant Time Queries for Energy Efficient Paths in Multi-Hop Wireless Networks Stefan Funke stations in such a way that approximately energy optimal paths can be retrieved in constant time, i. Keywords: Ad-Hoc and Sensor Networks, Routing, Power Control, Wireless LANs I. INTRODUCTION Ad hoc radio

  15. EIS-0516: Clean Path Energy Center Project; San Juan County, New Mexico

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing an EIS for the proposed interconnection of the Clean Path Energy Center Project to Western’s transmission system at the Shiprock Substation. The planned Clean Path Energy Center will consist of a 680 MW natural gas combined cycle power plant co-located with a 70 MW solar photovoltaic project.

  16. Improved algorithms for reaction path following: Higher-order implicit algorithms

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    Improved algorithms for reaction path following: Higher-order implicit algorithms Carlos Gonzaleza (Received 13May 1991;accepted17June 1991) Eight new algorithms for reaction path following are presented or if accurate propertiessuch ascurvature and frequenciesare needed.3*4 Numerous algorithms exist for following

  17. Tool path generation and 3D tolerance analysis for free-form surfaces 

    E-Print Network [OSTI]

    Choi, Young Keun

    2005-08-29

    in the tool paths. Several parts, for which the CC points are generated using the proposed algorithm, are machined using a three axes milling machine. As part of the validation process, the tool paths generated during machining are analyzed to compare...

  18. The cost of moving optimally: kinematic path selection Dinant A. Kistemaker,1,2

    E-Print Network [OSTI]

    Gribble, Paul

    The cost of moving optimally: kinematic path selection Dinant A. Kistemaker,1,2 Jeremy D. Wong,3 June 2014 Kistemaker DA, Wong JD, Gribble PL. The cost of moving optimally: kinematic path selection. J through opti- mization of a cost function that takes into account control and/or dynamic variables

  19. Thermal radiation in non-static curved spacetimes: quantum mechanical path integrals and configuration space topology

    E-Print Network [OSTI]

    M. E. Ortiz; F. Vendrell

    1998-06-19

    A quantum mechanical path integral derivation is given of a thermal propagator in non-static Gui spacetime. The thermal nature of the propagator is understood in terms of homotopically non-trivial paths in the configuration space appropriate to tortoise coordinates. The connection to thermal emission from collapsing black holes is discussed.

  20. CS 5050 -Program #5 -30 points Edit Distance as Shortest Path Problem

    E-Print Network [OSTI]

    Allan, Vicki H.

    CS 5050 - Program #5 - 30 points Edit Distance as Shortest Path Problem Part 1 Edit Distance (15 be helpful: Write the edit distance program using a shortest path solution. To save you a little time points) Problems in molecular biology involve finding the minimum number of edit steps which are required

  1. Context-Based Pedestrian Path Prediction Julian Francisco Pieter Kooij1,2

    E-Print Network [OSTI]

    Gavrila, Dariu M.

    Context-Based Pedestrian Path Prediction Julian Francisco Pieter Kooij1,2 , Nicolas Schneider1.F.P.Kooij,D.M.Gavrila}@uva.nl Abstract. We present a novel Dynamic Bayesian Network for pedestrian path prediction in the intelligent) to anticipate changes in the pedestrian dynamics. Using computer vision, situational awareness is assessed

  2. TGF'11 Moscow, September 28 -October 1, 2011 Geodesics and Shortest Paths Approach in Pedestrian

    E-Print Network [OSTI]

    Rascle, Michel

    TGF'11 Moscow, September 28 - October 1, 2011 Geodesics and Shortest Paths Approach in Pedestrian 15, 2011 M. Rascle (Universit´e de Nice) Geodesics and Shortest Paths in Pedestrian Motions October or refinement An example from Geography 3 Pedestrian Flow: Principle of a fully Eulerian description Assumptions

  3. Will the Pedestrian Cross? Probabilistic Path Prediction Based on Learned Motion Features

    E-Print Network [OSTI]

    Gavrila, Dariu M.

    Will the Pedestrian Cross? Probabilistic Path Prediction Based on Learned Motion Features Christoph, The Netherlands Abstract. Future vehicle systems for active pedestrian safety will not only re- quire a high, we present a system for pedestrian action classification (walking vs. stopping) and path prediction

  4. Reaction paths and free energy profiles for conformational transitions: An internal coordinate approach

    E-Print Network [OSTI]

    Lazaridis, Themis

    Reaction paths and free energy profiles for conformational transitions: An internal coordinate for the determination of transition states and reaction paths for conformational transitions. The method makes use of adiabatic energy surfaces in the space of "essential" degrees of freedom of the molecule. The reduced

  5. USING JET ROUTES TO MODEL PATH RE-ROUTING IN THE NATIONAL AIRSPACE SYSTEM

    E-Print Network [OSTI]

    Malloy, Brian

    USING JET ROUTES TO MODEL PATH RE-ROUTING IN THE NATIONAL AIRSPACE SYSTEM Brian A. Malloy #3; Dean Class Diagram, Object-oriented, Floyd's algorithm, Jet routes, Fix, Airport Fix, National Airspace that the majority of air traÆc must negotiate. These paths, or jet routes, intersect at navigation points or #12;xes

  6. Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths

    E-Print Network [OSTI]

    Skeel, Robert

    Two-Point Boundary Value Problems for Curves: The Case of Minimum Free Energy Paths corrected.S.A. Abstract The calculation of a minimum free energy path can be considered as a two-point boundary value box solvers. The second paragraph of Section 1 is corrected. Because free energy is defined in terms

  7. Quantum free-energy differences from nonequilibrium path integrals. II. Convergence properties for the harmonic oscillator

    E-Print Network [OSTI]

    Schofield, Jeremy

    Quantum free-energy differences from nonequilibrium path integrals. II. Convergence properties July 2008; published 2 October 2008 Nonequilibrium path-integral methods for computing quantum free-energy with the purpose of establishing the convergence properties of the work distribution and free energy as the number

  8. A Heuristic Approach to Finding Diverse Short Paths Caleb Voss, Mark Moll, and Lydia E. Kavraki

    E-Print Network [OSTI]

    Kavraki, Lydia E.

    Abstract-- We present an algorithm that seeks to find a set of diverse, short paths through a roadmap graph a precomputed roadmap of the environment is partially invalidated by some change, for example, relocation to checking or reconstructing the entire roadmap. We describe a formal definition of path set diversity

  9. Decomposing aerosol cloud radiative effects into cloud cover, liquid water path and Twomey components

    E-Print Network [OSTI]

    Daniel, Rosenfeld

    Decomposing aerosol cloud radiative effects into cloud cover, liquid water path and Twomey December 2013 A method for separating the three components of the marine stratocumulus (MSC) aerosol cloud interactions radiative effects, i.e., the cloud cover, liquid water path (LWP) and cloud drop radius (Twomey

  10. Eco-Growth: A Framework for Sustainable Growth

    E-Print Network [OSTI]

    Blanco, Edgar E.

    Growth is imperative for corporate success and yet the environmental impact of this growth is not sustainable. In this paper we offer a framework for thinking about the stages of tackling the environmental sustainability ...

  11. Theory of extreme correlations using canonical Fermions and path integrals

    SciTech Connect (OSTI)

    Shastry, B. Sriram, E-mail: sriram@physics.ucsc.edu

    2014-04-15

    The  t–J  model is studied using a novel and rigorous mapping of the Gutzwiller projected electrons, in terms of canonical electrons. The mapping has considerable similarity to the Dyson–Maleev transformation relating spin operators to canonical Bosons. This representation gives rise to a non Hermitian quantum theory, characterized by minimal redundancies. A path integral representation of the canonical theory is given. Using it, the salient results of the extremely correlated Fermi liquid (ECFL) theory, including the previously found Schwinger equations of motion, are easily rederived. Further, a transparent physical interpretation of the previously introduced auxiliary Greens function and the ‘caparison factor’, is obtained. The low energy electron spectral function in this theory, with a strong intrinsic asymmetry, is summarized in terms of a few expansion coefficients. These include an important emergent energy scale ?{sub 0} that shrinks to zero on approaching the insulating state, thereby making it difficult to access the underlying very low energy Fermi liquid behavior. The scaled low frequency ECFL spectral function, related simply to the Fano line shape, has a peculiar energy dependence unlike that of a Lorentzian. The resulting energy dispersion obtained by maximization is a hybrid of a massive and a massless Dirac spectrum E{sub Q}{sup ?}??Q??(?{sub 0}{sup 2}+Q{sup 2}), where the vanishing of Q, a momentum type variable, locates the kink minimum. Therefore the quasiparticle velocity interpolates between (??1) over a width ?{sub 0} on the two sides of Q=0, implying a kink there that strongly resembles a prominent low energy feature seen in angle resolved photoemission spectra (ARPES) of cuprate materials. We also propose novel ways of analyzing the ARPES data to isolate the predicted asymmetry between particle and hole excitations. -- Highlights: •Spectral function of the Extremely Correlated Fermi Liquid theory at low energy. •Electronic origin of low energy kinks in energy dispersion. •Non Hermitian representation of Gutzwiller projected electrons. •Analogy with Dyson–Maleev representation of spins. •Path integral formulation of extremely correlated electrons.

  12. The National Ignition Facility (NIF) A Path to Fusion Energy

    SciTech Connect (OSTI)

    Moses, E

    2006-11-27

    Fusion energy has long been considered a promising clean, nearly inexhaustible source of energy. Power production by fusion micro-explosions of inertial confinement fusion (ICF) targets has been a long term research goal since the invention of the first laser in 1960. The NIF is poised to take the next important step in the journey by beginning experiments researching ICF ignition. Ignition on NIF will be the culmination of over thirty years of ICF research on high-powered laser systems such as the Nova laser at LLNL and the OMEGA laser at the University of Rochester as well as smaller systems around the world. NIF is a 192 beam Nd-glass laser facility at LLNL that is more than 90% complete. The first cluster of 48 beams is operational in the laser bay, the second cluster is now being commissioned, and the beam path to the target chamber is being installed. The Project will be completed in 2009 and ignition experiments will start in 2010. When completed NIF will produce up to 1.8 MJ of 0.35 {micro}m light in highly shaped pulses required for ignition. It will have beam stability and control to higher precision than any other laser fusion facility. Experiments using one of the beams of NIF have demonstrated that NIF can meet its beam performance goals. The National Ignition Campaign (NIC) has been established to manage the ignition effort on NIF. NIC has all of the research and development required to execute the ignition plan and to develop NIF into a fully operational facility. NIF will explore the ignition space, including direct drive, 2{omega} ignition, and fast ignition, to optimize target efficiency for developing fusion as an energy source. In addition to efficient target performance, fusion energy requires significant advances in high repetition rate lasers and fusion reactor technology. The Mercury laser at LLNL is a high repetition rate Nd-glass laser for fusion energy driver development. Mercury uses state-o-the art technology such as ceramic laser slabs and light diode pumping for improved efficiency and thermal management. Progress in NIF, NIC, Mercury, and the path forward for fusion energy will be presented.

  13. Towards More Transmission Asset Utilization through Real-time Path Rating

    SciTech Connect (OSTI)

    Diao, Ruisheng; Huang, Zhenyu; Jin, Chunlian; Vyakaranam, Bharat GNVSR; Jin, Shuangshuang; Makarov, Yuri V.

    2013-10-21

    Ratings of transmission paths, typically determined in an offline environment, are static and tend to be conservative, leading to underutilization of transmission assets, higher costs of system operation and renewable energy integration, and lower efficiency and savings. With the ever-increasing transmission congestion costs and new challenges from renewable integration, increasing transfer capacity of existing transmission lines is essential. Real-time path rating provides a promising approach to enabling additional power transfer capability and fully utilizing transfer capability. In this paper, the feasibility of real-time path rating is investigated. Several promising technologies to achieve real-time path rating are discussed. Various benefits that can be expected from real-time path rating, such as increased transfer capability and reduced total generation cost, are demonstrated through simulations conducted on the Western Electricity Coordinating Council system model.

  14. Geometry of Valley Growth

    E-Print Network [OSTI]

    Petroff, Alexander P; Abrams, Daniel M; Lobkovsky, Alexander E; Kudrolli, Arshad; Rothman, Daniel H

    2011-01-01

    Although amphitheater-shaped valley heads can be cut by groundwater flows emerging from springs, recent geological evidence suggests that other processes may also produce similar features, thus confounding the interpretations of such valley heads on Earth and Mars. To better understand the origin of this topographic form we combine field observations, laboratory experiments, analysis of a high-resolution topographic map, and mathematical theory to quantitatively characterize a class of physical phenomena that produce amphitheater-shaped heads. The resulting geometric growth equation accurately predicts the shape of decimeter-wide channels in laboratory experiments, 100-meter wide valleys in Florida and Idaho, and kilometer wide valleys on Mars. We find that whenever the processes shaping a landscape favor the growth of sharply protruding features, channels develop amphitheater-shaped heads with an aspect ratio of pi.

  15. Bubble growth rates in boiling

    E-Print Network [OSTI]

    Griffith, P.

    1956-01-01

    The conditions determining the growth rate of a bubble on a surface in boiling are considered and a mathematical model framed in the light of these conditions. The growth rate is then calculated for bubbles growing under ...

  16. 1.5 Malthusian Growth

    E-Print Network [OSTI]

    PRETEX (Halifax NS) #1 1054 1999 Mar 05 10:59:16

    2010-01-20

    Feb 16, 2007 ... Logistic Population Model. The Malthusian growth law (1.5.1) does not provide an accurate model for the growth of a population over a long ...

  17. A Pilot Plant: The Fastest Path to Commercial Fusion Energy

    SciTech Connect (OSTI)

    Robert J. Goldston

    2010-03-03

    Considerable effort has been dedicated to determining the possible properties of a magneticconfinement fusion power plant, particularly in the U.S.1, Europe2 and Japan3. There has also been some effort to detail the development path to fusion energy, particularly in the U.S.4 Only limited attention has been given, in Japan5 and in China6, to the options for a specific device to form the bridge from the International Thermonuclear Experimental Reactor, ITER, to commercial fusion energy. Nor has much attention been paid, since 2003, to the synergies between magnetic and inertial fusion energy development. Here we consider, at a very high level, the possibility of a Qeng ? 1 Pilot Plant, with linear dimensions ~ 2/3 the linear dimensions of a commercial fusion power plant, as the needed bridge. As we examine the R&D needs for such a system we find significant synergies between the needs for the development of magnetic and inertial fusion energy.

  18. nuSTORM and A Path to a Muon Collider

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

    Adey, David; Bayes, Ryan; Bross, Alan; Snopok, Pavel

    2015-05-20

    Our article reviews the current status of the nuSTORM facility and shows how it can be utilized to perform the next step on the path toward the realization of a ?+?- collider. This review includes the physics motivation behind nuSTORM, a detailed description of the facility and the neutrino beams it can produce, and a summary of the short-baseline neutrino oscillation physics program that can be carried out at the facility. The idea for nuSTORM (the production of neutrino beams from the decay of muons in a racetrack-like decay ring) was discussed in the literature more than 30 years agomore »in the context of searching for noninteracting (sterile) neutrinos. However, only in the past 5 years has the concept been fully developed, motivated in large part by the facility's unmatched reach in addressing the evolving data on oscillations involving sterile neutrinos. Finally, this article reviews the basics of the ?+?-collider concept and describes how nuSTORM provides a platform to test advanced concepts for six-dimensional muon ionization cooling.« less

  19. High order Chin actions in path integral Monte Carlo

    SciTech Connect (OSTI)

    Sakkos, K.; Casulleras, J.; Boronat, J.

    2009-05-28

    High order actions proposed by Chin have been used for the first time in path integral Monte Carlo simulations. Contrary to the Takahashi-Imada action, which is accurate to the fourth order only for the trace, the Chin action is fully fourth order, with the additional advantage that the leading fourth-order error coefficients are finely tunable. By optimizing two free parameters entering in the new action, we show that the time step error dependence achieved is best fitted with a sixth order law. The computational effort per bead is increased but the total number of beads is greatly reduced and the efficiency improvement with respect to the primitive approximation is approximately a factor of 10. The Chin action is tested in a one-dimensional harmonic oscillator, a H{sub 2} drop, and bulk liquid {sup 4}He. In all cases a sixth-order law is obtained with values of the number of beads that compare well with the pair action approximation in the stringent test of superfluid {sup 4}He.

  20. Anomaly Mediated Gaugino Mass and Path-Integral Measure

    E-Print Network [OSTI]

    Keisuke Harigaya; Masahiro Ibe

    2014-09-16

    In recent years, there have been controversy concerning the anomaly mediated gaugino mass in the superspace formalism of supergravity. In this paper, we reexamine the gaugino mass term in this formalism by paying particular attention to symmetry which controls gaugino masses in supergravity. We first discuss super-Diffeomorphism invariance of path-integral measures of charged superfields. As we will show, the super-Diffeomorphism invariant measure is not invariant under a super-Weyl transformation, which is the origin of the anomaly mediated gaugino mass. We show how the anomaly mediated gaugino mass is expressed as a local operator in a Wilsonian effective action in a super-Diffeomorphism covariant way. We also obtain a gaugino mass term independent of the gauge choice of the fictitious super-Weyl symmetry in the super-Weyl compensator formalism, which reproduces the widely accepted result. Besides, we discuss how to reconcile the gaugino mass term in the local Wilsonian effective action and the gaugino mass term appearing in a non-local 1PI quantum effective action.

  1. On the Road to Climate Stability: The Parable of the Secretary A-Team Report on Prospects for Halting the Growth of CO2 Emissions

    E-Print Network [OSTI]

    Hansen, James E.

    for Halting the Growth of CO2 Emissions James Hansen1,2, Darnell Cain3, Robert Schmunk3 After President Bush) reducing non-CO2 climate forcings, and (2) getting CO2 emissions to level out in the near-term and decline for a path in which the United States achieves an energy and CO2 emissions pathway consistent

  2. A quantative evaluation of the reformulated 1996 path-goal theory of work unit leadership via structural equation modelling 

    E-Print Network [OSTI]

    Howieson, William B

    2008-01-01

    In 1996, Professor Robert J House published a reformulated Path-Goal Theory of Work Unit Leadership, based on his earlier 1971 and 1974 theories. Path-goal leadership attempts to explain the impact that leader behaviour ...

  3. Jointness of Growth Determinants

    E-Print Network [OSTI]

    Doppelhofer, Gernot; Weeks, Melvyn

    2006-03-14

    @cam.ac.uk, Tel: +44 1223 335200, Fax: +44 1223 335475. ‡Faculty of Economics, University of Cambridge, Cambridge CB3 9DD, UK. Email: mw217@econ.cam.ac.uk 1 Introduction Model uncertainty is encountered in many areas of empirical work in economics... presents the empirical results for jointness of growth, and section 5 concludes. 2 Bayesian Model Averaging Consider the following general linear regression model y = X? + ? (1) where y is a (T × 1) vector of observations of the dependent variable...

  4. Growth, microstructure, and luminescent

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Lowï‚— WeUpdate Jon Peschong Richland5 EOCGroveGrowth,

  5. Regional companies eye growth

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProtonAbout UsRegional companies eye growth Regional

  6. Non-intersecting squared Bessel paths: critical time and double scaling limit

    E-Print Network [OSTI]

    A. B. J. Kuijlaars; A. Martinez-Finkelshtein; F. Wielonsky

    2010-11-04

    We consider the double scaling limit for a model of $n$ non-intersecting squared Bessel processes in the confluent case: all paths start at time $t=0$ at the same positive value $x=a$, remain positive, and are conditioned to end at time $t=1$ at $x=0$. After appropriate rescaling, the paths fill a region in the $tx$--plane as $n\\to \\infty$ that intersects the hard edge at $x=0$ at a critical time $t=t^{*}$. In a previous paper (arXiv:0712.1333), the scaling limits for the positions of the paths at time $t\

  7. Exact Path-Integral Representations for the $T$-Matrix in Nonrelativistic Potential Scattering

    E-Print Network [OSTI]

    R. Rosenfelder

    2011-03-24

    Several path integral representations for the $T$-matrix in nonrelativistic potential scattering are given which produce the complete Born series when expanded to all orders and the eikonal approximation if the quantum fluctuations are suppressed. They are obtained with the help of "phantom" degrees of freedom which take away explicit phases that diverge for asymptotic times. Energy conservation is enforced by imposing a Faddeev-Popov-like constraint in the velocity path integral. An attempt is made to evaluate stochastically the real-time path integral for potential scattering and generalizations to relativistic scattering are discussed.

  8. In Proceedings of the 34th International Symposium on Microarchitecture, December, 2001 Reducing Power with Dynamic Critical Path Information

    E-Print Network [OSTI]

    Balasubramonian, Rajeev

    Power with Dynamic Critical Path Information John S. Seng Eric S. Tune Dean M. Tullsen Dept. of Computer to increase mi- croprocessor performance. Critical path information can also be used in processors to achieve a better balance of power and performance. This paper uses the output of a dynamic critical path predictor

  9. The Problem With Critical Path Scheduling Algorithms C. L. McCreary, M. A. Cleveland, A. A. Khan

    E-Print Network [OSTI]

    The Problem With Critical Path Scheduling Algorithms C. L. McCreary, M. A. Cleveland, A. A. Khan must be found. Several critical path heuristics have been proposed, but these must be empirically tested to see if their solutions are adequate. This paper examines the performance of four critical path

  10. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS, VOL. 9, NO. 10, OCTOBER 1998 1029 Critical Path Profiling of Message Passing

    E-Print Network [OSTI]

    Hollingsworth, Jeffrey K.

    the critical path profile of the execution of message passing and shared-memory parallel programs. Our algorithm permits starting or stopping the critical path computation during program execution and reporting intermediate values. We also present an online algorithm to compute a variant of critical path, called critical

  11. Quantum criticality for few-body systems: Path-integral approach Ricardo A. Sauerwein1,2

    E-Print Network [OSTI]

    Kais, Sabre

    Quantum criticality for few-body systems: Path-integral approach Ricardo A. Sauerwein1,2 and Sabre 2001 We present the path-integral approach to treat quantum phase transitions and critical phenomena in space time must preserve the scaling invariance of Brownian paths, we show that the mapped classical

  12. Investigation of path dependence in commercial lithium-ion cells for pure electric bus applications: Aging mechanism identification

    E-Print Network [OSTI]

    Mi, Chunting "Chris"

    Investigation of path dependence in commercial lithium-ion cells for pure electric bus applications dependence of aging of lithium ion batteries. Considered the conditions of path dependence specific October 2014 Available online 13 October 2014 Keywords: Lithium-ion battery Path dependence Thermal aging

  13. On selection of candidate paths for proportional routing q Srihari Nelakuditi a,*, Zhi-Li Zhang b

    E-Print Network [OSTI]

    Minnesota, University of

    On selection of candidate paths for proportional routing q Srihari Nelakuditi a,*, Zhi-Li Zhang b on the core routers. On the other hand, proportional routing schemes proportion incoming flows among a set of candidate paths. Two key questions that arise under proportional routing are how to select candidate paths

  14. On-the-fly string method for minimum free energy paths calculation Luca Maragliano *, Eric Vanden-Eijnden 1

    E-Print Network [OSTI]

    Van Den Eijnden, Eric

    On-the-fly string method for minimum free energy paths calculation Luca Maragliano *, Eric Vanden and simplified version of the string method in collective variables for computing minimum free energy paths) the minimum free energy path (MFEP) plays an important role. Given a set of collective variables to describe

  15. A*-Based Path Planning for an Unmanned Aerial and Ground Vehicle Team in a Radio Repeating Operation

    E-Print Network [OSTI]

    Kochersberger, Kevin

    A*-Based Path Planning for an Unmanned Aerial and Ground Vehicle Team in a Radio Repeating Krawiec #12;A*-Based Path Planning for an Unmanned Aerial and Ground Vehicle Team in a Radio Repeating. Therefore, this thesis incorporates an unmanned aerial vehicle as a radio repeating node and presents a path

  16. Development of a potential field estimator for a path-planning application using neural networks 

    E-Print Network [OSTI]

    Smith, Darin William

    1997-01-01

    This thesis presents the development of a potential field estimator for a locally constrained autonomous path-planning application. The potential field estimator was developed using back-propagation neural networks, which ...

  17. UAV PATH FOLLOWING FOR CONSTANT LINE-OF-SIGHT Rolf Rysdyk,

    E-Print Network [OSTI]

    UAV PATH FOLLOWING FOR CONSTANT LINE-OF-SIGHT Rolf Rysdyk, University of Washington, Seattle, WA to a method to model `helmsman behavior'. The UAV control problem typically involves: air- speed, aerodynamic

  18. Path integral formulation of retardation effects in nonlinear optics Vladimir Chernyaka) and Shaul Mukamel

    E-Print Network [OSTI]

    Mukamel, Shaul

    Path integral formulation of retardation effects in nonlinear optics Vladimir Chernyaka) and Shaul;accepted4 October 1993) The signaturesof retardation in nonlinear optical susceptibilitiesare studiedby optical signalsare usually'calculatedby first calculating a nonlinear susceptibility definedby expanding

  19. Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes

    E-Print Network [OSTI]

    Cuffe, John

    Knowledge of the mean-free-path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. We demonstrate that thermal conductivity measurements of thin membranes spanning a wide ...

  20. Sampling-based coverage path planning for complex 3D structures

    E-Print Network [OSTI]

    Englot, Brendan J

    2012-01-01

    Path planning is an essential capability for autonomous robots, and many applications impose challenging constraints alongside the standard requirement of obstacle avoidance. Coverage planning is one such task, in which a ...

  1. Next Generation Nuclear Plant Project Technology Development Roadmaps: The Technical Path Forward

    SciTech Connect (OSTI)

    John Collins

    2009-01-01

    This document presents the Next Generation Nuclear Plant (NGNP) Systems, Subsystems, and Components, establishes a baseline for the current technology readiness status, and provides a path forward to achieve increasing levels of technical maturity.

  2. Tool Path Planning Generation For Finish Machining of Freeform Surfaces in the Cybercut Process Planning Pipeline

    E-Print Network [OSTI]

    Wright, Paul K; Dornfeld, David; Sundararajan, V.; Misra, Debananda

    2007-01-01

    IN THE CYBERCUT PROCESS PLANNING PIPELINE Paul K. Wright,stage of the process planning will reject any surfaces withfrom the database. Tool path planning has been done on the ‘

  3. Vehicle Technologies Office Merit Review 2015: ePATHS- electrical PCM Assisted Thermal Heating System

    Broader source: Energy.gov [DOE]

    Presentation given by Delphi Automotive at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about ePATHS - electrical PCM...

  4. Minimum Cost Path Problem for Plug-in Hybrid Electric Vehicles

    E-Print Network [OSTI]

    Feb 4, 2014 ... Minimum Cost Path Problem for Plug-in Hybrid Electric Vehicles. Okan Arslan ( okan.arslan ***at*** bilkent.edu.tr) Baris Yildiz (baris.yildiz ...

  5. Conceptual Soundness, Metric Development, Benchmarking, and Targeting for PATH Subprogram Evaluation

    SciTech Connect (OSTI)

    Mosey. G.; Doris, E.; Coggeshall, C.; Antes, M.; Ruch, J.; Mortensen, J.

    2009-01-01

    The objective of this study is to evaluate the conceptual soundness of the U.S. Department of Housing and Urban Development (HUD) Partnership for Advancing Technology in Housing (PATH) program's revised goals and establish and apply a framework to identify and recommend metrics that are the most useful for measuring PATH's progress. This report provides an evaluative review of PATH's revised goals, outlines a structured method for identifying and selecting metrics, proposes metrics and benchmarks for a sampling of individual PATH programs, and discusses other metrics that potentially could be developed that may add value to the evaluation process. The framework and individual program metrics can be used for ongoing management improvement efforts and to inform broader program-level metrics for government reporting requirements.

  6. Common-path interference and oscillatory Zener tunneling in bilayer graphene p-n junctions

    E-Print Network [OSTI]

    Nandkishore, Rahul Mahajan

    Interference and tunneling are two signature quantum effects that are often perceived as the yin and yang of quantum mechanics: a particle simultaneously propagating along several distinct classical paths versus a particle ...

  7. Electron mean free path from angle-dependent photoelectron spectroscopy of aerosol particles

    SciTech Connect (OSTI)

    Goldmann, Maximilian; Miguel-Sánchez, Javier; West, Adam H. C.; Yoder, Bruce L.; Signorell, Ruth

    2015-06-14

    We propose angle-resolved photoelectron spectroscopy of aerosol particles as an alternative way to determine the electron mean free path of low energy electrons in solid and liquid materials. The mean free path is obtained from fits of simulated photoemission images to experimental ones over a broad range of different aerosol particle sizes. The principal advantage of the aerosol approach is twofold. First, aerosol photoemission studies can be performed for many different materials, including liquids. Second, the size-dependent anisotropy of the photoelectrons can be exploited in addition to size-dependent changes in their kinetic energy. These finite size effects depend in different ways on the mean free path and thus provide more information on the mean free path than corresponding liquid jet, thin film, or bulk data. The present contribution is a proof of principle employing a simple model for the photoemission of electrons and preliminary experimental data for potassium chloride aerosol particles.

  8. Stay on marked paths to avoid poison ivy. Watch young children carefully around river and creeks.

    E-Print Network [OSTI]

    Shyy, Wei

    Caution · Stay on marked paths to avoid poison ivy. · Watch young children carefully around river or outdoor cooking are not permitted. Poison Ivy Hours · Trails and gardens open 8 am to dusk. · Conservatory

  9. CFD based rotordynamic coefficients for labyrinth seals and impeller leakage paths 

    E-Print Network [OSTI]

    Bhattacharya, Avijit

    1997-01-01

    accurately using simple flow model like bulk flow. CFD approach is employed since it can accurately predict and capture recirculating zones using proper mesh distribution. The Impeller Leakage paths and Labyrinth Seals, typically, have a recirculation zone...

  10. Method and apparatus for monitoring characteristics of a flow path having solid components flowing therethrough

    DOE Patents [OSTI]

    Hoskinson, Reed L. (Rigby, ID); Svoboda, John M. (Idaho Falls, ID); Bauer, William F. (Idaho Falls, ID); Elias, Gracy (Idaho Falls, ID)

    2008-05-06

    A method and apparatus is provided for monitoring a flow path having plurality of different solid components flowing therethrough. For example, in the harvesting of a plant material, many factors surrounding the threshing, separating or cleaning of the plant material and may lead to the inadvertent inclusion of the component being selectively harvested with residual plant materials being discharged or otherwise processed. In accordance with the present invention the detection of the selectively harvested component within residual materials may include the monitoring of a flow path of such residual materials by, for example, directing an excitation signal toward of flow path of material and then detecting a signal initiated by the presence of the selectively harvested component responsive to the excitation signal. The detected signal may be used to determine the presence or absence of a selected plant component within the flow path of residual materials.

  11. Is a curved flight path in SAR better than a straight one?

    E-Print Network [OSTI]

    Plamen Stefanov

    2012-12-10

    model of this is to project the curve on the plane, call it ?; then the data are integrals ..... projections to the base falls on ? (points right below the plane's path, i.e.,.

  12. Programmed path : the conceptual re-enactment of a Charlestown warehouse and dock

    E-Print Network [OSTI]

    Reeves, Sarah Rundquist

    2009-01-01

    Conceptually re-defining the role of a 100-year-old waterfront brick and timber warehouse structure, it is turned inside-out : interior becomes path. Programmatic functions imitate the physical characteristics of a conceptual ...

  13. POSTER: Secure Path Verification using Mobility-Differentiated ToA

    E-Print Network [OSTI]

    Lenders, Vincent

    POSTER: Secure Path Verification using Mobility-Differentiated ToA Matthias Schäfer Vincent Lenders@cs.uni-kl.de vincent.lenders@armasuisse.ch jschmitt@cs.uni-kl.de ABSTRACT In this poster, we generalize the problem

  14. Region-based Approach for Determining the Optimal Path Using PSO

    E-Print Network [OSTI]

    Nair, Dr T R Gopalakrishnan; Shetty, Ms Deepthi D; Hegde, Ms Prapthi; Hegde, Ms Anusha

    2011-01-01

    Many research works have been carried out recently to find the optimal path in network routing. Among them the evolutionary algorithms is an area where work is carried out extensively. We in this paper, have used PSO for finding the optimal path and the concept of region based network is introduced along with the use of indirect encoding. A comparative study of genetic algorithm (GA) and particle swarm optimization (PSO) is carried out, and it was found that PSO performed better than GA.

  15. Notes on Feynman path integral-like methods of quantization on Riemannian manifolds

    E-Print Network [OSTI]

    Yoshihisa Miyanishi

    2015-12-20

    We propose an alternative method for Feynman path integrals on compact Riemannian manifolds. Our method employs action integrals along the shortest paths. In the case of rank 1 locally symmetric Riemannian manifolds, we prove the strong convergence of time slicing products of oscillatory integrals for low energy functions. Moreover, the strong limit includes Dewitt curvature $R/6$, where $R$ denotes the scalar curvature of a Riemannian manifold.

  16. The response of world energy and oil demand to income growth and changes in oil prices

    SciTech Connect (OSTI)

    Dargay, J. [Oxford Univ. (United Kingdom). Transport Studies Unit; Gately, D. [New York Univ., NY (United States). Economics Dept.

    1995-11-01

    This paper reviews the path of world oil demand over the past three decades, and the effects of both the oil price increases of the 1970s and the oil price decreases of the 1980s. Compared with demand in the industrialized countries, demand in the Less Developed Countries (LDC) has been more responsive to income growth, less responsive to price increases, and more responsive to price decreases. The LDC has also exhibited much greater heterogeneity in income growth and is effect on demand. The authors expect a smaller demand response to future price increases than to those of the 1970s. The demand response to future income growth will be not substantially smaller than in the past. Finally, given the prospect of growing dependence on OPEC oil, in the event of a major disruption the lessened price-responsiveness of demand could cause dramatic price increases and serious macroeconomic effects.

  17. Dimension growth for C -algebras

    E-Print Network [OSTI]

    2007-05-14

    Feb 6, 2007 ... its range is exhausted by simple, nuclear C?-algebras. As consequences we obtain a well developed the- ory of dimension growth for ...

  18. Growth management and sustainable transport: Do growth management policies promote transit use? 

    E-Print Network [OSTI]

    Deal, Brian; Kim, Jae H; Chackraborty, Arnab

    2009-01-01

    4). Figure 4. Sustainable Growth Management and TransportIntegration Growth Management and Sustainable Transport2004. Do state growth management regulations reduce sprawl?

  19. Logistic Growth The logistic equation is a model of limited population growth. The exponential growth model

    E-Print Network [OSTI]

    Ikenaga, Bruce

    9­28­1998 Logistic Growth The logistic equation is a model of limited population growth of organisms runs out of food, encounters predators, or fouls its own environment with waste. The logistic the carrying capacity. Example. A population of roaches grows logistically in Calvin Butterball's kitchen

  20. Quantum correlation of path-entangled two-photon states in waveguide arrays with defects

    SciTech Connect (OSTI)

    Dou, Yiling; Xu, Lei; Han, Bin; Bo, Fang; Xu, Jingjun; Zhang, Guoquan, E-mail: zhanggq@nankai.edu.cn [The MOE Key Laboratory of Weak Light Nonlinear Photonics, School of Physics and TEDA Applied Physics Institute, Nankai University, Tianjin 300457 (China)] [The MOE Key Laboratory of Weak Light Nonlinear Photonics, School of Physics and TEDA Applied Physics Institute, Nankai University, Tianjin 300457 (China)

    2014-04-15

    We study the quantum correlation of path-entangled states of two photons in coupled one-dimensional waveguide arrays with lattice defects. Both off-diagonal and diagonal defects are considered, which show different effects on the quantum correlation of path-entangled two-photon states. Two-photon bunching or anti-bunching effects can be observed and controlled. The two photons are found to have a tendency to bunch at the side lobes with a repulsive off-diagonal defect, and the path-entanglement of the input two-photon state can be preserved during the propagation. We also found that defect modes may play an important role on the two-photon correlation of path-entangled states in the waveguide arrays. Due to the quantum interference effect, intriguing evolution dynamics of the two-photon correlation matrix elements with oscillation frequencies being either twice of or the same as that of a classical light wave, depending on the position of the correlation matrix element, is observed. Our results show that it is possible to manipulate the two-photon correlation properties of path-entangled states in waveguide arrays with lattice defects.

  1. Aerosynthesis: Growths of Vertically Aligned Carbon Nanofibers with Air DC Plasma

    SciTech Connect (OSTI)

    Kodumagulla, A [North Carolina State University; Varanasi, V [North Carolina State University; Pearce, Ryan [North Carolina State University; Wu, W-C [North Carolina State University; Hensley, Dale K [ORNL; Tracy, Joseph B [North Carolina State University; McKnight, Timothy E [ORNL; Melechko, Anatoli [North Carolina State University

    2014-01-01

    Vertically aligned carbon nanofibers (VACNF) have been synthesized in a mixture of acetone and air using catalytic DC plasma enhanced chemical vapor deposition. Typically, ammonia or hydrogen is used as etchant gas in the mixture to remove carbon that otherwise passivates the catalyst surface and impedes growth. Our demonstration of using air as the etchant gas opens up a possibility that ion etching could be sufficient to maintain the catalytic activity state during synthesis. It also demonstrates the path toward growing VACNFs in open atmosphere.

  2. Large-Actuator-Number Horizontal Path Correction of Atmospheric Turbulence utilizing an Interferometric Phase Conjugate Engine

    SciTech Connect (OSTI)

    Baker, K L; Stappaerts, E A; Gavel, D; Tucker, J; Silva, D A; Wilks, S C; Olivier, S S; Olsen, J

    2004-08-25

    An adaptive optical system used to correct horizontal beam propagation paths has been demonstrated. This system utilizes an interferometric wave-front sensor and a large-actuator-number MEMS-based spatial light modulator to correct the aberrations incurred by the beam after propagation along the path. Horizontal path correction presents a severe challenge to adaptive optics systems due to the short atmospheric transverse coherence length and the high degree of scintillation incurred by laser propagation along these paths. Unlike wave-front sensors that detect phase gradients, however, the interferometric wave-front sensor measures the wrapped phase directly. Because the system operates with nearly monochromatic light and uses a segmented spatial light modulator, it does not require that the phase be unwrapped to provide a correction and it also does not require a global reconstruction of the wave-front to determine the phase as required by gradient detecting wave-front sensors. As a result, issues with branch points are eliminated. Because the atmospheric probe beam is mixed with a large amplitude reference beam, it can be made to operate in a photon noise limited regime making its performance relatively unaffected by scintillation. The MEMS-based spatial light modulator in the system contains 1024 pixels and is controlled to speeds in excess of 800 Hz, enabling its use for correction of horizontal path beam propagation. In this article results are shown of both atmospheric characterization with the system and open loop horizontal path correction of a 1.53 micron laser by the system. To date Strehl ratios of greater than 0.5 have been achieved.

  3. Growth machine theory: a qualitative analysis 

    E-Print Network [OSTI]

    Smith, Gavin Paul

    1993-01-01

    of land inherent in growth machine theory, does not necessarily result in a dialectic, win-lose situation. Furthermore, it is argued that the growth coalition may not always ado t a unidimensional roach to development where further growth...

  4. Spin Description in the Star Product and the Path Integral Formalism

    E-Print Network [OSTI]

    S. Odendahl; P. Henselder

    2007-05-24

    The spin can be described in the star product formalism by extending the bosonic Moyal product in the fermionic sector. The fermionic star product is then the Clifford product of geometric algebra and it is possible to formulate the fermionic star product formalism in analogy to the bosonic star product formalism. For the fermionic star product description of spin, one can then establish the relation to other approaches that describe spin with fermionic variables, i.e. the operator formalism and the path integral formalism. It is shown that the fermionic star product formalism and the fermionic path integral formalism are related in analogy to their bosonic counterparts.

  5. Self-consistent Green's functions calculation of the nucleon mean-free path

    E-Print Network [OSTI]

    A. Rios; V. Soma

    2011-12-22

    The extension of Green's functions techniques to the complex energy plane provides access to fully dressed quasi-particle properties from a microscopic perspective. Using self-consistent ladder self-energies, we find both spectra and lifetimes of such quasi-particles in nuclear matter. With a consistent choice of the group velocity, the nucleon mean-free path can be computed. Our results indicate that, for energies above 50 MeV at densities close to saturation, a nucleon has a mean-free path of 4 to 5 femtometers.

  6. Path-Integral Derivation of the Non-relativistic Scale Anomaly

    E-Print Network [OSTI]

    Chris L. Lin; Carlos. R. Ordonez

    2015-04-21

    In this paper we calculate the scale anomaly for a quantum field theoretic 2D-nonrelativistic Bose gas with contact interactions using Fujikawa's method, both in vacuum and in many-body systems. The use of path integrals for these problems is novel and motivated by a recently developed path-integral framework for addressing questions about scaling in these systems. A natural class of regulators is found that produces the correct value of the anomaly traditionally calculated via other methods, e.g., diagrammatically via the beta function.

  7. Hot gas path analysis and data evaluation of the performance parameters of a gas turbine 

    E-Print Network [OSTI]

    Hanawa, David Allen

    1974-01-01

    SCIENCE December 1974 Major Subject: Mechanical Engineering HOT GAS PATH ANALYSIS AND DATA EVALUATION OF THE PERFORMANCE PARAMETERS OF A GAS TURBINE A Thesis by DAVID AI, LEN HANAWA Approved as to style and content by: PfnA J 7 EY3 .j (Chairman... of -Committee) zr (Head of Depai'tment) Member) /i ~E" Egg(JQJ a g i (Member) (Member) December l974 ABSTRACT Ho Gas Path Ana'ysis and Data Evaluation o. the Performance Parameters of a Gas Turbine (December 1974) David Allen Hanawa, B. S. , Texas A...

  8. Human linear growth trajectory defined

    E-Print Network [OSTI]

    2013-01-01

    a child’s height in its 3rd year of age is greater than thatbut its growth rate in the 3rd year is slower than that in

  9. The Annual Growth In Plants

    E-Print Network [OSTI]

    Courtright, J. E.

    1903-01-01

    KU ScholarWorks | The University of Kansas Pre-1923 Dissertations and Theses Collection The Annual Growth In Plants 1903 by J. E. Courtright This work was digitized by the Scholarly Communications program staff in the KU Libraries’ Center...

  10. Long-run Implications of a Forest-based Carbon Sequestration Policy on the United States Economy: A Computable General Equilibrium (CGE) Modeling Approach 

    E-Print Network [OSTI]

    Monge, Juan

    2012-10-19

    The economic impacts of a government-funded, forest-based sequestration program were analyzed under two different payment schemes. The impacts were obtained by developing a regional, static CGE model built to accommodate a modified IMPLAN SAM for a...

  11. The limits of liberalism? : long-run petroleum prices and government intervention in petroleum markets in Japan, France, and the United States

    E-Print Network [OSTI]

    Hughes, Llewelyn (Llewelyn P.)

    2009-01-01

    This study considers cross-national and inter-temporal variation in national oil policies in Japan, France, and the United States. A test was performed of the extent to which policies in these countries continue to emphasize ...

  12. Cosmic Growth History and Expansion History

    E-Print Network [OSTI]

    Linder, Eric V.

    2009-01-01

    LBNL- 58260 Cosmic Growth History andExpansion History Eric V. Linder Physics Division, LawrenceCalifornia. Cosmic Growth History and Expansion History Eric

  13. Tax policy can change the production path: A model of optimal oil extraction in Alaska

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    1 Tax policy can change the production path: A model of optimal oil extraction in Alaska Wayne@primal.ucdavis.edu * Corresponding author ABSTRACT We model the economically optimal dynamic oil production decisions for seven and an estimated inverse production function, which incorporates engineering aspects of oil production into our

  14. (Quickly) Testing the Tester via Path Coverage Laboratory for Reliable Software

    E-Print Network [OSTI]

    Groce, Alex David

    gener- ation are increasingly accepted in the software engineering community. Random testing [14, 10, 3(Quickly) Testing the Tester via Path Coverage Alex Groce Laboratory for Reliable Software Jet testing framework may grow to a point that the tester itself becomes a significant software artifact

  15. Path Selection and Coordination for Multiple Robots via Nash Equilibria Steven M. LaValle

    E-Print Network [OSTI]

    Hutchinson, Seth

    Path Selection and Coordination for Multiple Robots via Nash Equilibria Steven M. LaValle lavalle robot, together in a game-theoretic contexi in which maximal Nash equilibria represent the favor- able of the mazimal Nash equilibria for a given problem is presented, along with several computed examples for two

  16. Stochastic Shortest Path MDPs with Dead Ends Andrey Kolobov Mausam Daniel S. Weld

    E-Print Network [OSTI]

    Mausam

    Stochastic Shortest Path MDPs with Dead Ends Andrey Kolobov Mausam Daniel S. Weld {akolobov, mausam, weld}@cs.washington.edu Dept of Computer Science and Engineering University of Washington Seattle, USA algorithms that are aware of the possible presence of dead-end states (Kolobov, Mausam, and Weld 2010

  17. Long Range Evolution-based Path Planning for UAVs through Realistic Weather Environments

    E-Print Network [OSTI]

    Long Range Evolution-based Path Planning for UAVs through Realistic Weather Environments Juan Planning for UAVs through Realistic Weather Environments Juan Carlos Rubio Torroella Co range flights is pre- sented. The planner makes use of wind information from actual weather forecast

  18. Randomized Path Planning on Manifolds based on Higher-Dimensional Continuation

    E-Print Network [OSTI]

    Porta, Josep M.

    Abstract Despite the significant advances in path planning methods, highly constrained problems are still constrained systems. The proposed planner builds on recently developed tools for higher is not cen- tered in, and tightly enveloped by the ambient space box, the sampling process is biased

  19. Path Thresholding: Asymptotically Tuning-Free High-Dimensional Sparse Regression

    E-Print Network [OSTI]

    Path Thresholding: Asymptotically Tuning-Free High-Dimensional Sparse Regression Divyanshu Vats of selecting tuning parame- ters for high-dimensional sparse regression. We propose a simple and computation-dependent sparse regression algorithm into an asymptotically tuning-free sparse regression algorithm. More specifi

  20. An Architecture for Managing Virtual Circuit and Virtual Path Services on ATM Networks

    E-Print Network [OSTI]

    Columbia University

    1 An Architecture for Managing Virtual Circuit and Virtual Path Services on ATM Networks Abstract management architecture that provides the services and is instrumented for network management purposes service monitor- ing and control functions. The network management architecture proposes complete managed

  1. AN EVOLUTION BASED PATH PLANNING ALGORITHM FOR AUTONOMOUS MOTION OF A UAV THROUGH UNCERTAIN

    E-Print Network [OSTI]

    1 AN EVOLUTION BASED PATH PLANNING ALGORITHM FOR AUTONOMOUS MOTION OF A UAV THROUGH UNCERTAIN planning is a required part of a fully autonomous UAV. In controlled airspace, such a UAV would have of an unmanned air vehicle (UAV) through a field of obstacles at uncertain locations. We begin with the static

  2. Multi-UAV Convoy Protection: An Optimal Approach to Path Planning and Coordination

    E-Print Network [OSTI]

    Egerstedt, Magnus

    1 Multi-UAV Convoy Protection: An Optimal Approach to Path Planning and Coordination X. C. Ding, A Aerial Vehicles (UAVs) to provide convoy protection to a group of ground vehicles. The UAVs are modeled to provide convoy protection to ground vehicles moving on straight lines. The minimum number of UAVs required

  3. Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation

    E-Print Network [OSTI]

    Flight Testing a Real Time Implementation of a UAV Path Planner Using Direct Collocation Brian R by tracking a second UAV flying a predefined pattern. Finally, a method of commanding the observation vector ^s UAV sensor line of sight unit vector p Attraction point u UAV Control vector xt Target state

  4. American Institute of Aeronautics and Astronautics A Dynamic Path Generation Method for a UAV Swarm in

    E-Print Network [OSTI]

    Sastry, S. Shankar

    American Institute of Aeronautics and Astronautics 1 A Dynamic Path Generation Method for a UAV of unmanned aerial vehicles (UAVs) in the urban environment is presented. For the missions of a team of UAVs is applied to a deployment scenario of sixteen rotary-wing UAVs flying in a cluttered urban area and showed

  5. MULTI-TARGET ASSIGNMENT AND PATH PLANNING FOR GROUPS OF UAVS

    E-Print Network [OSTI]

    Minai, Ali A.

    Chapter 1 MULTI-TARGET ASSIGNMENT AND PATH PLANNING FOR GROUPS OF UAVS Theju Maddula Ali A. Minai of Cincinnati Cincinnati, OH 45221 Abstract Uninhabited autonomous vehicles (UAVs) have many useful military in the possibility of using large teams (swarms) of UAVs functioning cooperatively to accomplish a large number

  6. FRC on the Path to Fusion Energy (Moderate Density Steady-State Approach)

    E-Print Network [OSTI]

    to start from already formed FRC) Plasma measurement in RMF frame of reference so s RMF r Br T *2 22 µ1 FRC on the Path to Fusion Energy (Moderate Density Steady-State Approach) Alan Hoffman Redmond Plasma Physics Laboratory University of Washington (FPA Meeting on Fusion Pathways to the Future

  7. Biosensor diagnosis of urinary tract infections: a path to better treatment?

    E-Print Network [OSTI]

    Wong, Pak Kin

    Biosensor diagnosis of urinary tract infections: a path to better treatment? Kathleen E. Mach1 to the emer- gence of resistant pathogens. Biosensors are emerging as a powerful diagnostic platform pregnancy tests are now conducted in the home, biosensors are poised to improve UTI diagnosis significantly

  8. Paths and KostkaMacdonald Polynomials Anatol N. KIRILLOV and Reiho SAKAMOTO

    E-Print Network [OSTI]

    class of combinatorial statistics that naturally generalize the so­called energy statistics. Mathematics, the statistics energy E is an example of a generalized machonian statistics [21], Section 2, whereas Subject Classification (2000) 05E10, 20C35. Key words and phrases: Crystals, Paths, Energy and Tau

  9. Observations and design of public place and paths in a New England town

    E-Print Network [OSTI]

    Compton, Ann, M. Arch. Massachusetts Institute of Technology

    1984-01-01

    This is a plan - a hypothesis in which some ideas are developed for the building of a path and parks. Through the use of imagery texture, and materials a sense of the possible is evoked. This is also an exploration of ...

  10. Parallelization of Path Planning Algorithms for AUVs Concepts, Opportunities, and Program-Technical

    E-Print Network [OSTI]

    Kremer, Ulrich

    of an energy-aware, many-core computing architec- ture to perform on-board path planning within a battery core single-chip system developed by Intel. The performance, power, and energy consumption GB/s bisection bandwidth between tiles, and four integrated DDR3 memory controllers [2, 3]. Each core

  11. (Nothing else) MATor(s): Monitoring the Anonymity of Tor's Path Selection

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    & Future Work 26 1 #12;1 Introduction The onion routing network Tor is a widely employed low(Nothing else) MATor(s): Monitoring the Anonymity of Tor's Path Selection Michael Backes1,2 Aniket we present MATOR: a framework for rigorously assessing the degree of anonymity in the Tor network

  12. A new sparse representation of seismic data using adaptive easy-path wavelet transform

    E-Print Network [OSTI]

    Plonka, Gerlind

    ,3, Gerlind Plonka 2, Herv´e Chauris 3 1 Institute of Seismic Exploration, School of Aerospace, Tsinghua exploration, see e.g., seismic denoising [11, 19], data recovery [12], multiple re- moval [13], migration [3A new sparse representation of seismic data using adaptive easy-path wavelet transform Jianwei Ma 1

  13. W deposition and titanium fluoride formation during WF6 reduction by Ti: Reaction path and mechanisms

    E-Print Network [OSTI]

    Allen, Leslie H.

    W deposition and titanium fluoride formation during WF6 reduction by Ti: Reaction path, Materials Research Laboratory, and Department of Materials Science, University of Illinois, 1304 West Green Street, Urbana, Illinois 61801 V. C. Hornback and D. J. Allman Symbios Logic Incorporated, 1635 Aeroplaza

  14. Circuit switches have simpler data paths and are potentially much faster than

    E-Print Network [OSTI]

    McKeown, Nick

    2 Circuit switches have simpler data paths and are potentially much faster than packet switches. Taking advantage of this dif- ference makes very high capacity all-optical circuit switches feasible, whereas all-optical packet switches are a long way from com- mercial practicality. Peak

  15. Portal-Based True-Distance Heuristics for Path Finding Meir Goldenberg

    E-Print Network [OSTI]

    Schaeffer, Jonathan

    Portal-Based True-Distance Heuristics for Path Finding Meir Goldenberg Information Systems. In this paper, we introduce a new TDH, the portal-based heuristic. The domain is partitioned into regions and portals between regions are identified. True distances be- tween all pairs of portals are stored and used

  16. A Competition-Ba sed Explanation of Syntactic Attachment Preferences and Garden Path Phenomena

    E-Print Network [OSTI]

    A Competition-Ba sed Explanation of Syntactic Attachment Preferences and Garden Path Phenomena suzanne@cs.toronto.edu Abstract This paper presents a massively parallel parser that pre- dicts critical or revision strategies. The processing of a syntactic am- biguity is modeled as an active, distributed

  17. Path Analysis Models of an Autonomous Agent in a Complex Environment

    E-Print Network [OSTI]

    populated by autonomous agents. It is a simulation of forest fires in Yellowstone National Park will present descriptive, predictive and causal models of the behavior of agents that fight simulated forest fires. We will describe the shortcomings of descriptive and predictive models, and summarize path

  18. Non-relativistic Bremsstrahlung in QED: Hamiltonian vs. Path Integral Approach

    E-Print Network [OSTI]

    A. Jahan

    2013-05-20

    An alternative derivation of the radiation intensity in non-relativistic bremsstrahlung is provided utilizing the path integral formalism. By integrating out the gauge field, one obtains the effective action which it's imaginary part is interpreted as the rate of photon production during the collision.

  19. The path integral of Feynman and "information modelling" of processes and systems

    E-Print Network [OSTI]

    O. I. Shro

    2009-03-29

    The given article example of physical analogies to be entered information space-time. The opportunity of Poincare group use is shown for transition from one frame in another, for this purpose is entered invariant velocity of transition of the information. For calculation of information processes probability amplitudes is offered using path integral of Feynman.

  20. String method in collective variables: Minimum free energy paths and isocommittor surfaces

    E-Print Network [OSTI]

    Van Den Eijnden, Eric

    York University, New York, New York 10012 Giovanni Ciccottid INFM and Dipartimento di Fisica in the free energy. Provided that the number of collective variables is large enough, the new techniqueString method in collective variables: Minimum free energy paths and isocommittor surfaces Luca

  1. Demonstration of Time Reversal Methods in a Multi-path Environment

    E-Print Network [OSTI]

    Sarabandi, Kamal

    Demonstration of Time Reversal Methods in a Multi-path Environment K. Sarahandi* Fellow, ZEEE, I and focusing in a spatially varying (inhomogeneous) medium. While the concept of time reversal or applying time constructively, and focus the received energy at this point. In any b i t e size array that occupies B limited

  2. IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 5, NO. 6, DECEMBER 1997 861 Virtual Path Bandwidth

    E-Print Network [OSTI]

    Columbia University

    IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 5, NO. 6, DECEMBER 1997 861 Virtual Path Bandwidth Allocation in Multiuser Networks Aurel A. Lazar, Fellow, IEEE, Ariel Orda, Senior Member, IEEE, and Dimitrios E. Pendarakis, Member, IEEE Abstract-- We consider a multiuser network that is shared

  3. Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes

    E-Print Network [OSTI]

    Smith, Ryan N.

    Wind-Energy based Path Planning For Unmanned Aerial Vehicles Using Markov Decision Processes Wesam H. Al-Sabban, Luis F. Gonzalez and Ryan N. Smith Abstract-- Exploiting wind-energy is one possible way to extend the flight duration of an Unmanned Aerial Vehicle. Wind-energy can also be used

  4. Efficient Path Counting Transducers for Minimum Bayes-Risk Decoding of Statistical Machine Translation Lattices

    E-Print Network [OSTI]

    de Gispert, Adrià

    transducer (WFST) opera- tions1. The LMBR decision rule in Tromble et al. (2008) has the form ^E = argmax EE(u|E) for all u N. Tromble et al. (2008) use Equation (1) as an approximation to the general form impossible for individual paths. Therefore, while the Tromble et al. (2008) linearisation of the gain

  5. The TauPToo~kit:Flexib/e Seismic Travel-time and Ray-path Utilities

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    The TauPToo~kit:Flexib/e Seismic Travel-time and Ray-path Utilities H. Philip Crotwell, Thomas studies. These factors highlight the need for versatile utilities that allow the calculation of travel to implement this approach. We used Maple (Heal etal., 1996), a symbolic mathematics utility, to help convert

  6. Reliable Protein Folding on Complex Energy Landscapes: The Free Energy Reaction Path

    E-Print Network [OSTI]

    Haller, Gary L.

    Reliable Protein Folding on Complex Energy Landscapes: The Free Energy Reaction Path Gregg Lois the dynamics of protein folding. The key insight is that the search for the native protein conformation. In the ``new view'' of protein folding (3,7), statistical fluctuations on an energy landscape give rise

  7. Assessing the Impact of Automated Path Planning Aids in the Maritime Community

    E-Print Network [OSTI]

    Cummings, Mary "Missy"

    and sometimes nuclear reactors onboard. There also appears to be a pervasive lack of trust in automation in military submarine and surface ship navigation, paths are planned and re-planned using paper charts more situational awareness to a submarine commander, this thesis develops and implements an automation

  8. A Vervaat-like path transformation for the re ected Brownian bridge

    E-Print Network [OSTI]

    Henri Poincaré -Nancy-Université, Université

    A Vervaat-like path transformation for the re ected Brownian bridge conditioned on its local time transformation for the re ected Brownian bridge conditioned on its local time at 0: up to random shifts, this process equals the two processes constructed from a Brownian bridge and a Brownian excursion by adding

  9. Roadmaps using Gradient Extremal Paths Ioannis Filippidis and Kostas J. Kyriakopoulos

    E-Print Network [OSTI]

    Low, Steven H.

    Roadmaps using Gradient Extremal Paths Ioannis Filippidis and Kostas J. Kyriakopoulos Abstract-- This work proposes a motion planning method based on the construction of a roadmap connecting the critical methods due to local minima caused by concave obstacles. The roadmap is incre- mentally constructed

  10. Planning for multiple mobile robots in dynamic environ ments involves determining the optimal path each robot

    E-Print Network [OSTI]

    Stentz, Tony

    Abstract Planning for multiple mobile robots in dynamic environ­ ments involves determining the optimal path each robot should follow to accomplish the goals of the mission, given the current knowledge reassign robots to goals in order to continually minimize the time to complete the mission. In this paper

  11. BENCHMARKING ROBOT PATH PLANNING ANDREW N. HAND, JAGRUTHI GODUGU, KAVEH ASHENAYI,

    E-Print Network [OSTI]

    Wainwright, Roger L.

    1 BENCHMARKING ROBOT PATH PLANNING ANDREW N. HAND, JAGRUTHI GODUGU, KAVEH ASHENAYI, THEODORE W Algorithms (GA's) to develop an algorithm for autonomous robot navigation. We have achieved significant in different categories as Easy, Moderate, Difficult and Very Difficult. INTRODUCTION An autonomous robot

  12. A Path Tracking Criterion for an LHD Articulated Claudio Alta ni

    E-Print Network [OSTI]

    Altafini, Claudio

    in this paper. It exploits the particular con guration of this vehicle, composed of two units connected of curvature is the only measure easily attainable to describe the path and it is naturally given with respect, changing the angle between the front and rear part by means of hydraulic actuators. Both the shape

  13. Autonomous Local Path-Planning for a Mobile Robot Using a Genetic Algorithm

    E-Print Network [OSTI]

    Wainwright, Roger L.

    , Kaveh Ashenayi, Theodore W. Manikas, Roger L. Wainwright, Heng-Ming Tai Electrical Engineering of everyday life. Recently, robots have become a major part of this trend. Therefore, autonomously navigating of a genetic algorithm based path-planning software. The algorithm uses an improved, modified version

  14. Flight Path and Wing Optimization of Lithium-Air Battery Powered Passenger Aircraft

    E-Print Network [OSTI]

    Alonso, Juan J.

    in the design of electrically-driven aircraft, particularly in the case of fuel cells and batteries.5­7 One to implement vis. a vis. fuel cells, in particular, liquid hydrogen fuel cells. However, present-day batteryFlight Path and Wing Optimization of Lithium-Air Battery Powered Passenger Aircraft J. Michael Vegh

  15. Smooth Path Planning of a Mobile Robot Using Stochastic Particle Swarm Optimization

    E-Print Network [OSTI]

    Li, Yangmin

    .mo Abstract-- This paper proposes a new approach using im- proved particle swarm optimization (PSO optimization methods that produce nonsmooth paths, the PSO method developed in this paper can generate smooth using mobile robots. To reduce computational cost of optimization, the stochastic PSO (S-PSO) with high

  16. Reliable Protein Folding on Complex Energy Landscapes: The Free Energy Reaction Path

    E-Print Network [OSTI]

    Gelfond, Michael

    Reliable Protein Folding on Complex Energy Landscapes: The Free Energy Reaction Path Gregg Lois be calculated from measurements of the free energy. We test these predictions against numerical simulations folding problem (2­4). Each protein conformation has a free energy that determines its probability

  17. Equilibrium free energies from path sampling of nonequilibrium trajectories Sean X. Suna)

    E-Print Network [OSTI]

    Sun, Sean

    Equilibrium free energies from path sampling of nonequilibrium trajectories Sean X. Suna equilibrium free energy and nonequilibrium work is rewritten as an average of work with respect to a work nonequilibrium trajectories yields good estimates of the equilibrium free energy change. The procedure can

  18. The Spurious Path Problem in Abstraction Gaojian Fan and Robert C. Holte

    E-Print Network [OSTI]

    Holte, Robert

    The Spurious Path Problem in Abstraction Gaojian Fan and Robert C. Holte University of Alberta, Edmonton, Alberta, Canada {gaojian, rholte}@ualberta.ca Abstract Abstraction is a powerful technique. We provide syntactical conditions under which our method can re- move state-independent spurious

  19. Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision Processes

    E-Print Network [OSTI]

    Smith, Ryan N.

    Wind-Energy based Path Planning For Electric Unmanned Aerial Vehicles Using Markov Decision wind-energy is one possible way to ex- tend flight duration for Unmanned Arial Vehicles. Wind-energy sources of wind energy available to exploit for this problem [5]: 1) Vertical air motion, such as thermal

  20. Approximation Algorithms and Heuristics for a 2-depot, Heterogeneous Hamiltonian Path Problem 

    E-Print Network [OSTI]

    Doshi, Riddhi Rajeev

    2011-10-21

    Various civil and military applications of UAVs, or ground robots, require a set of vehicles to monitor a group of targets. Routing problems naturally arise in this setting where the operators of the vehicles have to plan the paths suitably in order...

  1. Using Hessian Updating To Increase the Efficiency of a Hessian Based Predictor-Corrector Reaction Path

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    -22 Numerical methods for integrating ordinary differential equations may be classified as either explicit methods required derivative information at the end point as well. For integrating eq 1, the differential of reaction path following calculation. The most common use of such a calculation is to ensure

  2. Green function of the double fractional Fokker-Planck equation: Path integral and stochastic differential equations

    E-Print Network [OSTI]

    H. Kleinert; V. Zatloukal

    2015-03-05

    The statistics of rare events, the so-called black-swan events, is governed by non-Gaussian distributions with heavy power-like tails. We calculate the Green functions of the associated Fokker-Planck equations and solve the related stochastic differential equations. We also discuss the subject in the framework of path integration.

  3. Effect of Path Diversity on the loss performance of UDP Packets over the Internet

    E-Print Network [OSTI]

    Neirotti, Juan Pablo

    Effect of Path Diversity on the loss performance of UDP Packets over the Internet Richard Haywood network consists of a number of relay nodes that are positioned around the Internet. In each] the authors look at Sprint's (a large US Internet Service Provider (ISP)) internal network and find

  4. Leading Up the Lexical Garden Path: Segmentation and Ambiguity in Spoken Word Recognition

    E-Print Network [OSTI]

    Davis, Matt

    Leading Up the Lexical Garden Path: Segmentation and Ambiguity in Spoken Word Recognition Matthew H-modal repetition priming experiments, traced the time course of recognition of words with onset embeddings (captain) and short words in contexts that match (cap tucked) or mismatch (cap looking) with longer words. Results

  5. Community planning that preserves the natural environment, leading the path towards sustainability

    E-Print Network [OSTI]

    , Emergency Management, and Sustainable Planning. In addition to economic benefits that community characterCommunity planning that preserves the natural environment, leading the path towards sustainability a community handbook Growing Texas: #12;2 · GrowinG Texas: a communiTy handbook As Texas continues

  6. Statistical fracture modeling: crack path and fracture criteria with application to homogeneous and

    E-Print Network [OSTI]

    Ritchie, Robert

    Statistical fracture modeling: crack path and fracture criteria with application to homogeneous; accepted 23 January 2002 Abstract Analysis has been performed on fracture initiation near a crack in a brittle material with strength described by Weibull statistics. This nonlocal fracture model allows

  7. SAMPLE-PATH ANALYSIS OF THE PROPORTIONAL RELATION AND ITS CONSTANT FOR DISCRETE-TIME

    E-Print Network [OSTI]

    Ishizaki, Fumio

    SAMPLE-PATH ANALYSIS OF THE PROPORTIONAL RELATION AND ITS CONSTANT FOR DISCRETE-TIME SINGLE and c is a constant which is called proportional constant. We call such a relation the proportional relation. It has been shown that similar proportional relations also hold for some other queueing systems

  8. Dynamic response of adhesion complexes: Beyond the single-path picture Denis Bartolo,1,

    E-Print Network [OSTI]

    Derényi, Imre

    Dynamic response of adhesion complexes: Beyond the single-path picture Denis Bartolo,1, * Imre Dere, France Received 25 June 2001; published 10 May 2002 We analyze the response of molecular adhesion put forward to probe the unfolding of proteins and to quantify the strength of adhesion structures 1

  9. Regular Paths in SparQL: Querying the NCI Thesaurus Landon T. Detwiler1

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Regular Paths in SparQL: Querying the NCI Thesaurus Landon T. Detwiler1 , Dan Suciu, PhD3 , James F can create views of the OWL version of the NCI Thesaurus that match the views generated by the web the matched triples. Some examples of triples from the National Cancer Institute (NCI) Thesaurus that would

  10. Bicolored Shortest Paths in Graphs with Applications to Network Overlay Design

    E-Print Network [OSTI]

    Mao, Weizhen

    and Hyeong-Ah Choi Department of Electrical Engineering and Computer Science George Washington University variation of the standard shortest path problem is thus of interest: what is the shortest (cheapest) route is the cheapest route between A and B that meets the delay constraint? In this paper, we formulate a graph

  11. Path-dependent human identification using a pyroelectric infrared sensor and Fresnel lens

    E-Print Network [OSTI]

    Pitsianis, Nikos P.

    Path-dependent human identification using a pyroelectric infrared sensor and Fresnel lens arrays) sensor whose visibility is modulated by a Fresnel lens array. The optimal element number of the lens," Proc. of IEEE. Signals, Systems and Computers 1, 843-838 (2001). 11. Fresnel Technologies Inc., http

  12. 1182 J. GUIDANCE, VOL. 19, NO. 5: ENGINEERING NOTES Fig. 2 Fixed and optimized flight paths.

    E-Print Network [OSTI]

    Singh, Tarunraj

    and optimized flight paths. Conclusion A simple guidance law for operation of dual-fuel SSTO launch vehicles hasbeen developed andused to determine the optimal value of the transition Mach number from dual fuel higher dynamic pressure than the fixed, particularly in dual-fuel mode. In the future, the guidance

  13. Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble

    E-Print Network [OSTI]

    Heermann, Dieter W.

    Reconstruction of the Free Energy in the Metastable Region using the Path Ensemble Armando Ticona which we reconstruct the free energy as a function of the magnetic field, temperature and system size. From the reconstructed free energy, we obtain the free energy barrier that is associated

  14. An Integrated Path Integral and Free-Energy Perturbation-Umbrella Sampling Method for Computing

    E-Print Network [OSTI]

    Minnesota, University of

    An Integrated Path Integral and Free-Energy Perturbation-Umbrella Sampling Method for Computing integral and free-energy perturbation-umbrella sampling (PI-FEP/UM) method for computing kinetic isotope effects is achieved by coupled free-energy perturbation and umbrella sampling for reactions involving

  15. Studies on free energy calculations. I. Thermodynamic integration using a polynomial path

    E-Print Network [OSTI]

    Mezei, Mihaly

    Studies on free energy calculations. I. Thermodynamic integration using a polynomial path Haluk in the free energy of hydration between the C, and aR conformations of alanine dipeptide at infinite dilution equilibria is determined by free energy ditferences, the calculation of the free energies has long been

  16. Quantum free-energy differences from nonequilibrium path integrals. I. Methods and numerical application

    E-Print Network [OSTI]

    Schofield, Jeremy

    Quantum free-energy differences from nonequilibrium path integrals. I. Methods and numerical are combined to yield methods for computing free-energy differences in quantum systems using nonequilibrium,8 provide a means to compute the free-energy difference between two classical systems by use of a control

  17. FORMAL LANGUAGE CONSTRAINED PATH PROBLEMS CHRIS BARRETT y , RIKO JACOB z , AND MADHAV MARATHE y

    E-Print Network [OSTI]

    Riko Jacob

    . The problem of #12;nding label constrained paths also arises in other application areas such as production by the Department of Energy under Contract W-7405-ENG-36. z Email: rjacob@brics.dk. BRICS, Basic Research of Aarhus, Ny Munkegade, bg 540, DK-8000 #23; Arhus C, Denmark. Work done while staying at Los Alamos

  18. Path Planning in Expansive Configuration Spaces David Hsu JeanClaude Latombe Rajeev Motwani

    E-Print Network [OSTI]

    Latombe, Jean-Claude

    whose connectivity can be effectively captured by a roadmap of randomly­sampled milestones. The analysis, avoiding the cost of precomputing a roadmap for the entire configuration space. Thus, it is well a roadmap of the configuration space and tries to find a path between any two input configurations

  19. Notes on Visibility Roadmaps and Path Planning J.P. Laumond, LAASCNRS, Toulouse, France

    E-Print Network [OSTI]

    Cortés, Juan

    Notes on Visibility Roadmaps and Path Planning J.­P. Laumond, LAAS­CNRS, Toulouse, France T. Sim'eon, LAAS­CNRS, Toulouse, France Abstract This paper overviews the probabilistic roadmap ap­ proaches. Topology induces the combinatorial complexity of the roadmaps tending to capture both coverage and con

  20. OLiMPS. OpenFlow Link-layer MultiPath Switching

    SciTech Connect (OSTI)

    Newman, Harvey B.; Barczyk, Artur; Bredel, Michael

    2014-11-17

    The OLiMPS project’s goal was the development of an OpenFlow controller application allowing load balancing over multiple switched paths across a complex network topology. The second goal was to integrate the controller with Dynamic Circuit Network systems such as ESnet’s OSCARS. Both goals were achieved successfully, as laid out in this report.

  1. Analyzing California's GHG Reduction Paths using CA-TIMES Energy System Model

    E-Print Network [OSTI]

    California at Davis, University of

    Analyzing California's GHG Reduction Paths using CA-TIMES Energy System Model Christopher Yang@ucdavis.edu NextSTEPS (Sustainable Transportation Energy Pathways) #12;CA-TIMES Model Overview · CA-TIMES is a bottom-up, linear optimization model of California's energy sectors ­ Technology and resources details

  2. Laser-driven proton scaling laws and new paths towards energy increase

    E-Print Network [OSTI]

    Loss, Daniel

    -particle radiography8 , or for the production of high-energy-density matter of interest for astrophysics9 ; they couldARTICLES Laser-driven proton scaling laws and new paths towards energy increase J. FUCHS1,2 *, P, 85748 Garching, Germany 8 Laboratoire d'Optique Appliqu´ee ­ENSTA, UMR 7639, CNRS, Ecole Polytechnique

  3. Transmission Design at the National Level: Benefits, Risks and Possible Paths Forward

    E-Print Network [OSTI]

    Electric Energy System #12;Transmission Design at the National Level: Benefits, Risks and Possible Paths Planning, Western Electricity Coordinating Council (WECC) · Dale Osborn, Consulting Advisor, Transmission to move electric energy interregionally is limited to the capacity of the existing transmission system

  4. Harmonic Path (HAPA) Algorithm for Noncontact Vital Signs Monitoring with IRUWB Radar

    E-Print Network [OSTI]

    Ingram, Mary Ann

    Harmonic Path (HAPA) Algorithm for Non­contact Vital Signs Monitoring with IR­UWB Radar Van Nguyen. INTRODUCTION Vital sign monitoring is fundamental in health care as knowledge of the patient's heart rate (HR consistently and accurately [1]. Currently the most common form of vital sign monitoring in hospitals is pulse

  5. Interactive Albedo Editing in Path-Traced Volumetric Materials MILO S HA SAN and RAVI RAMAMOORTHI

    E-Print Network [OSTI]

    California at San Diego, University of

    Interactive Albedo Editing in Path-Traced Volumetric Materials MILO S HA SAN and RAVI RAMAMOORTHI-reflection. This complexity can be handled by simulating the full volumetric light transport within these ma- terials by Monte by simulating the full volumetric light transport within these materials by Monte Carlo algorithms. E

  6. A path integral formalism for the closure of autonomous statistical systems

    E-Print Network [OSTI]

    Richard Kleeman

    2015-03-25

    Recently a path integral formalism has been proposed by the author which gives the time evolution of moments of slow variables in a Hamiltonian statistical system. That formalism is extended here to deal with a more general autonomous dynamical system. An immediate practical application to forced dissipative turbulent systems is thus now possible.

  7. Achromatic recirculated chicane with fixed geometry and independently variable path length and momentum compaction

    DOE Patents [OSTI]

    Douglas, David R.; Neil, George R.

    2005-04-26

    A particle beam recirculated chicane geometry that, through the inducement of a pair of 180 degree bends directed by the poles of a pair of controllable magnetic fields allows for variation of dipole position, return loop radii and steering/focussing, thereby allowing the implementation of independent variation of path length and momentum compaction.

  8. Fuel-Optimal Centralized Coordination of Truck Platooning Based on Shortest Paths

    E-Print Network [OSTI]

    Dimarogonas, Dimos

    Fuel-Optimal Centralized Coordination of Truck Platooning Based on Shortest Paths Sebastian van de fuel consumption of trucks. Vehicles that drive at close inter- vehicle distance assisted by automatic the formation and the breakup of platoons in a fuel-optimal way. We formulate an optimization problem which

  9. Path Tracking Control for Dubin's Cars A.Balluchiy A.Bicchiy A.Balestrinoy G.Casalinoz

    E-Print Network [OSTI]

    Baltes, Jacky

    Path Tracking Control for Dubin's Cars A.Balluchiy A.Bicchiy A.Balestrinoy G.Casalinoz yDepartment of Electrical Systems and Automation, University of Pisa. Via Diotisalvi, 2, 56125 Pisa - Italy. z. Abstract The problem of driving a car along a given path is con- sidered. In order to model a realistic

  10. Frster resonance energy transfer, absorption and emission spectra in multichromophoric systems. III. Exact stochastic path integral evaluation

    E-Print Network [OSTI]

    Cao, Jianshu

    . III. Exact stochastic path integral evaluation Jeremy M. Moix, Jian Ma, and Jianshu Cao Citation); 10.1063/1.4908599 The functional integral with unconditional Wiener measure for anharmonic oscillator. III. Exact stochastic path integral evaluation Jeremy M. Moix, Jian Ma, and Jianshu Caoa) Department

  11. 1664 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 64, NO. 5, MAY 2015 Real-Time Path Planning Based on

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    utilization and drivers' travel cost. Index Terms--Hybrid VANETs, path planning, spatial utiliza- tion, travel1664 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 64, NO. 5, MAY 2015 Real-Time Path Planning planning can efficiently relieve traffic congestion in urban scenarios. However, how to design an efficient

  12. On the Selection of Optimal Diverse AS-Paths for Inter-Domain IP/(G)MPLS Tunnel Provisioning

    E-Print Network [OSTI]

    Rougier, Jean-Louis

    On the Selection of Optimal Diverse AS-Paths for Inter-Domain IP/(G)MPLS Tunnel Provisioning of diverse AS paths can be computed, in order to proactively increase the success rate of tunnel set these services beyond domain boundaries, particularly for critical inter-AS VPNs, TV transport or voice gateways

  13. The formulation of quantum statistical mechanics based on the Feynman path centroid density. V. Quantum instantaneous normal mode

    E-Print Network [OSTI]

    Cao, Jianshu

    The formulation of quantum statistical mechanics based on the Feynman path centroid density. V regime using the Feynman path centroid perspective in quantum statistical mechanics. To accomplish of their lack of static and stable structures. The fluidity of liq- uids thereby makes it formally improper

  14. Minimum-Risk Path Finding by an Adaptive Amoebal Network Toshiyuki Nakagaki,1,2,* Makoto Iima,1

    E-Print Network [OSTI]

    Showalter, Kenneth

    Minimum-Risk Path Finding by an Adaptive Amoebal Network Toshiyuki Nakagaki,1,2,* Makoto Iima,1 is formed that connects the food sources through the shortest route. When the light- avoiding organism risk as the experimentally measurable rate of light-avoiding movement, the minimum-risk path

  15. Weak convergence of complex-valued measure for bi-product path space induced by quantum walk

    E-Print Network [OSTI]

    Norio Konno; Etsuo Segawa

    2012-08-30

    In this paper, a complex-valued measure of bi-product path space induced by quantum walk is presented. In particular, we consider three types of conditional return paths in a power set of the bi-product path space (1) $\\Lambda \\times \\Lambda $, (2) $\\Lambda \\times \\Lambda'$ and (3) $\\Lambda'\\times \\Lambda'$, where $\\Lambda$ is the set of all $2n$-length ($n\\in \\mathbb{N}$) return paths and $\\Lambda'(\\subseteq \\Lambda)$ is the set of all $2n$-length return paths going through $nx$ ($x\\in [-1,1]$) at time $n$. We obtain asymptotic behaviors of the complex-valued measures for the situations (1)-(3) which imply two kinds of weak convergence theorems (Theorems 1 and 2). One of them suggests a weak limit of weak values.

  16. Nonlinear structural crack growth monitoring

    DOE Patents [OSTI]

    Welch, Donald E. (Oak Ridge, TN); Hively, Lee M. (Philadelphia, TN); Holdaway, Ray F. (Clinton, TN)

    2002-01-01

    A method and apparatus are provided for the detection, through nonlinear manipulation of data, of an indicator of imminent failure due to crack growth in structural elements. The method is a process of determining energy consumption due to crack growth and correlating the energy consumption with physical phenomena indicative of a failure event. The apparatus includes sensors for sensing physical data factors, processors or the like for computing a relationship between the physical data factors and phenomena indicative of the failure event, and apparatus for providing notification of the characteristics and extent of such phenomena.

  17. SBA Growth Accelerator Fund Competition

    Broader source: Energy.gov [DOE]

    The U.S. Small Business Administration (SBA) is accepting applications for the Growth Accelerator Fund Competition to identify the nation's innovative accelerators and similar organizations and award them cash prizes they may use to fund their operations costs and allow them to bring startup competitions to scale and new ideas to life.

  18. Graphene Growth and Device Integration

    E-Print Network [OSTI]

    INVITED P A P E R Graphene Growth and Device Integration This paper describes one of the emerging methods for growing grapheneVthe chemical vapor deposition methodVwhich is based on a catalytic reaction, Fellow IEEE, Robert M. Wallace, Fellow IEEE, and Rodney S. Ruoff ABSTRACT | Graphene has been introduced

  19. Rotational fluctuation of molecules in quantum clusters. I. Path integral hybrid Monte Carlo algorithm

    SciTech Connect (OSTI)

    Miura, Shinichi [Institute for Molecular Science, 38 Myodaiji, Okazaki 444-8585 (Japan)

    2007-03-21

    In this paper, we present a path integral hybrid Monte Carlo (PIHMC) method for rotating molecules in quantum fluids. This is an extension of our PIHMC for correlated Bose fluids [S. Miura and J. Tanaka, J. Chem. Phys. 120, 2160 (2004)] to handle the molecular rotation quantum mechanically. A novel technique referred to be an effective potential of quantum rotation is introduced to incorporate the rotational degree of freedom in the path integral molecular dynamics or hybrid Monte Carlo algorithm. For a permutation move to satisfy Bose statistics, we devise a multilevel Metropolis method combined with a configurational-bias technique for efficiently sampling the permutation and the associated atomic coordinates. Then, we have applied the PIHMC to a helium-4 cluster doped with a carbonyl sulfide molecule. The effects of the quantum rotation on the solvation structure and energetics were examined. Translational and rotational fluctuations of the dopant in the superfluid cluster were also analyzed.

  20. Efficient algorithms for semiclassical instanton calculations based on discretized path integrals

    SciTech Connect (OSTI)

    Kawatsu, Tsutomu, E-mail: kawatsu@fukui.kyoto-u.ac.jp, E-mail: smiura@mail.kanazawa-u.ac.jp [Institute for Molecular Science, National Institute of Natural Science, 38 Nishigonaka, Myodaiji, Okazaki 222-8585 (Japan); School of Mathematics and Physics, Kanazawa University, Kanazawa 920-1192 (Japan); Miura, Shinichi, E-mail: kawatsu@fukui.kyoto-u.ac.jp, E-mail: smiura@mail.kanazawa-u.ac.jp [School of Mathematics and Physics, Kanazawa University, Kanazawa 920-1192 (Japan)

    2014-07-14

    Path integral instanton method is a promising way to calculate the tunneling splitting of energies for degenerated two state systems. In order to calculate the tunneling splitting, we need to take the zero temperature limit, or the limit of infinite imaginary time duration. In the method developed by Richardson and Althorpe [J. Chem. Phys. 134, 054109 (2011)], the limit is simply replaced by the sufficiently long imaginary time. In the present study, we have developed a new formula of the tunneling splitting based on the discretized path integrals to take the limit analytically. We have applied our new formula to model systems, and found that this approach can significantly reduce the computational cost and gain the numerical accuracy. We then developed the method combined with the electronic structure calculations to obtain the accurate interatomic potential on the fly. We present an application of our ab initio instanton method to the ammonia umbrella flip motion.