National Library of Energy BETA

Sample records for technology possibility curves

  1. Multivariate curve resolution for hyperspectral image analysis :applications to microarray technology.

    SciTech Connect

    Van Benthem, Mark Hilary; Sinclair, Michael B.; Haaland, David Michael; Martinez, M. Juanita (University of New Mexico, Albuquerque, NM); Timlin, Jerilyn Ann; Werner-Washburne, Margaret C. (University of New Mexico, Albuquerque, NM); Aragon, Anthony D. (University of New Mexico, Albuquerque, NM)

    2003-01-01

    Multivariate curve resolution (MCR) using constrained alternating least squares algorithms represents a powerful analysis capability for a quantitative analysis of hyperspectral image data. We will demonstrate the application of MCR using data from a new hyperspectral fluorescence imaging microarray scanner for monitoring gene expression in cells from thousands of genes on the array. The new scanner collects the entire fluorescence spectrum from each pixel of the scanned microarray. Application of MCR with nonnegativity and equality constraints reveals several sources of undesired fluorescence that emit in the same wavelength range as the reporter fluorphores. MCR analysis of the hyperspectral images confirms that one of the sources of fluorescence is due to contaminant fluorescence under the printed DNA spots that is spot localized. Thus, traditional background subtraction methods used with data collected from the current commercial microarray scanners will lead to errors in determining the relative expression of low-expressed genes. With the new scanner and MCR analysis, we generate relative concentration maps of the background, impurity, and fluorescent labels over the entire image. Since the concentration maps of the fluorescent labels are relatively unaffected by the presence of background and impurity emissions, the accuracy and useful dynamic range of the gene expression data are both greatly improved over those obtained by commercial microarray scanners.

  2. Bragg Curves - 88-Inch Cyclotron

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Bragg Curves

  3. An Analysis of Energy Savings Possible Through Advances in Automotive Tooling Technology

    SciTech Connect

    Rick Schmoyer, RLS

    2004-12-03

    The use of lightweight and highly formable advanced materials in automobile and truck manufacturing has the potential to save fuel. Advances in tooling technology would promote the use of these materials. This report describes an energy savings analysis performed to approximate the potential fuel savings and consequential carbon-emission reductions that would be possible because of advances in tooling in the manufacturing of, in particular, non-powertrain components of passenger cars and heavy trucks. Separate energy analyses are performed for cars and heavy trucks. Heavy trucks are considered to be Class 7 and 8 trucks (trucks rated over 26,000 lbs gross vehicle weight). A critical input to the analysis is a set of estimates of the percentage reductions in weight and drag that could be achieved by the implementation of advanced materials, as a consequence of improved tooling technology, which were obtained by surveying tooling industry experts who attended a DOE Workshop, Tooling Technology for Low-Volume Vehicle Production, held in Seattle and Detroit in October and November 2003. The analysis is also based on 2001 fuel consumption totals and on energy-audit component proportions of fuel use due to drag, rolling resistance, and braking. The consumption proportions are assumed constant over time, but an allowance is made for fleet growth. The savings for a particular component is then the product of total fuel consumption, the percentage reduction of the component, and the energy audit component proportion. Fuel savings estimates for trucks also account for weight-limited versus volume-limited operations. Energy savings are assumed to be of two types: (1) direct energy savings incurred through reduced forces that must be overcome to move the vehicle or to slow it down in braking. and (2) indirect energy savings through reductions in the required engine power, the production and transmission of which incur thermodynamic losses, internal friction, and other

  4. Learning Curve

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    1997-03-28

    It is a fundamental human characteristic that a person engaged in a repetitive task will improve his performance over time. If data are gathered on this phenomenon, a curve representing a decrease in effort per unit for repetitive operations can be developed. This phenomenon is real and has a specific application in cost analysis, cost estimating, or profitability studies related to the examination of future costs and confidence levels in an analysis. This chapter discusses the development and application of the learning curve.

  5. Broadening the Appeal of Marginal Abatement Cost Curves: Capturing Both Carbon Mitigation and Development Benefits of Clean Energy Technologies; Preprint

    SciTech Connect

    Cowlin, S.; Cochran, J.; Cox, S.; Davison, C.; van der Gaast, Y.

    2012-08-01

    Low emission development strategies (LEDS) articulate policies and implementation plans that enable countries to advance sustainable, climate-resilient development and private sector growth while significantly reducing the greenhouse gas (GHG) emissions traditionally associated with economic growth. In creating a LEDS, policy makers often have access to information on abatement potential and costs for clean energy technologies, but there is a scarcity of economy-wide approaches for evaluating and presenting information on other dimensions of importance to development, such as human welfare, poverty alleviation, and energy security. To address this shortcoming, this paper proposes a new tool for communicating development benefits to policy makers as part of a LEDS process. The purpose of this tool is two-fold: 1. Communicate development benefits associated with each clean energy-related intervention; 2. Facilitate decision-making on which combination of interventions best contributes to development goals. To pilot this tool, the authors created a visual using data on developmental impacts identified through the Technology Needs Assessment (TNA) project in Montenegro. The visual will then be revised to reflect new data established through the TNA that provides information on cost, GHG mitigation, as well as the range and magnitude of developmental impacts.

  6. Supply Curves for Solar PV-Generated Electricity for the United States

    SciTech Connect

    Denholm, P.; Margolis, R.

    2008-11-01

    Energy supply curves attempt to estimate the relationship between the cost of an energy resource and the amount of energy available at or below that cost. In general, an energy supply curve is a series of step functions with each step representing a particular group or category of energy resource. The length of the step indicates how much of that resource is deployable or accessible at a given cost. Energy supply curves have been generated for a number of renewable energy sources including biomass fuels and geothermal, as well as conservation technologies. Generating a supply curve for solar photovoltaics (PV) has particular challenges due to the nature of the resource. The United States has a massive solar resource base -- many orders of magnitude greater than the total consumption of energy. In this report, we examine several possible methods for generating PV supply curves based exclusively on rooftop deployment.

  7. Deployment of CCS Technologies across the Load Curve for a Competitive Electricity Market as a Function of CO2 Emissions Permit Prices

    SciTech Connect

    Luckow, Patrick; Wise, Marshall A.; Dooley, James J.

    2011-04-18

    Consistent with other published studies, the modelling presented here reveals that baseload power plants are the first aspects of the electricity sector to decarbonize and are essentially decarbonized once CO2 permit prices exceed a certain threshold ($90/ton CO2 in this study). The decarbonization of baseload electricity is met by significant expansions of nuclear power and renewable energy generation technologies as well as the application of carbon dioxide capture and storage (CCS) technologies applied to both coal and natural gas fired power plants. Relatively little attention has been paid thus far to whether intermediate and peaking units would respond the same way to a climate policy given the very different operational and economic context that these kinds of electricity generation units operate under. In this paper, the authors discuss key aspects of the load segmentation methodology used to imbed a varying electricity demand within the GCAM (a state-of-the-art Integrated Assessment Model) energy and economic modelling framework and present key results on the role CCS technologies could play in decarbonizng subpeak and peak generation (encompassing only the top 10% of the load) and under what conditions. To do this, the authors have modelled two hypothetical climate policies that require 50% and 80% reductions in US emissions from business as usual by the middle of this century. Intermediate electricity generation is virtually decarbonized once carbon prices exceed approximately $150/tonCO2. When CO2 permit prices exceed $160/tonCO2, natural gas power plants with CCS have roughly the same marketshare as conventional gas plants in serving subpeak loads. The penetration of CCS into peak load (upper 6% here) is minimal under the scenarios modeled here suggesting that CO2 emissions from this aspect of the U.S. electricity sector would persist well into the future even with stringent CO2 emission control policies in place.

  8. Modeling Current-Voltage Curves Using Bilinear Interpolation: Preprint

    SciTech Connect

    Marion, B.; del Cueto, J.; Sekulic, B.

    2004-08-01

    Current-voltage (I-V) curves for photovoltaic (PV) modules representing all PV technologies were modeled by bilinearly interpolating the I-V curves from a PV module's four reference I-V curves. The interpolation was performed first with respect to open-circuit voltage to account for PV module temperature, and second with respect to short-circuit current to account for irradiance. The modeled I-V curves compared closely with measured I-V curves for 26 PV modules located at the National Renewable Energy Laboratory.

  9. Technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technologies Technologies Scientists and engineers at Los Alamos have developed a variety of advanced technologies that anticipate-affect, detect, and neutralize & mitigate all types of explosive threats. v Technologies Since its inception in 1943, Los Alamos National Laboratory has been a driving force in explosives science. Scientists and engineers at Los Alamos have developed a variety of advanced technologies that anticipate, detect, and mitigate all types of explosive threats. ANDE:

  10. Technolog

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research in Science and Technolog y Sandia pushes frontiers of knowledge to meet the nation's needs, today and tomorrow Sandia National Laboratories' fundamental science and technology research leads to greater understanding of how and why things work and is intrinsic to technological advances. Basic research that challenges scientific assumptions enables the nation to push scientific boundaries. Innovations and breakthroughs produced at Sandia allow it to tackle critical issues, from

  11. Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Technology Delivering science to the marketplace through commercialization, spinoffs and industry partnerships. News Releases Science Briefs Photos Picture of the Week Publications Social Media Videos Fact Sheets Gary Grider (second from right) with the 2015 Richard P. Feynman Innovation Prize. Also pictured (left to right): Duncan McBranch, Chief Technology Officer of Los Alamos National Laboratory; Terry Wallace, Program Associate Director for Global Security at Los Alamos; and Lee

  12. Technolog

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Research in Science and Technolog y Sandia pushes frontiers of knowledge to meet the nation's needs, today and tomorrow ... Basic research that challenges scientific assumptions ...

  13. 2009 Geothermal, Co-Production, and GSHP Supply Curves | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy 2009 Geothermal, Co-Production, and GSHP Supply Curves 2009 Geothermal, Co-Production, and GSHP Supply Curves Project objective: Generate supply/deployment curve input for geothermal technologies for use in market penetration models. analysis_augustine_supply_curves.pdf (861.72 KB) More Documents & Publications SMU Geothermal Conference 2011 - Geothermal Technologies Program track 1: systems analysis | geothermal 2015 peer review National Geothermal Resource Assessment and

  14. Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology A research team at the University of Colorado has developed a novel heat exchanger design and accompanying manufacturing technique for creating low-cost microchannel heat exchangers from plastics, metals, or ceramics. The prototype used laser welding (upper red lines at right). Expansion makes "chessboard" counter flow pattern (lower right). The figure below shows mass production, where sheets are added one at a time and welded with a mask and filament (left) or laser

  15. The Chemistry of the Thermal DeNOx Process: A Review of the Technology's Possible Application to control of NOx from Diesel Engines

    SciTech Connect

    Lyon, Richard

    2001-08-05

    This paper presents a review of the Thermal DeNOx process with respect to its application to control of NOx emissions from diesel engines. The chemistry of the process is discussed first in empirical and then theoretical terms. Based on this discussion the possibilities of applying the process to controlling NOx emissions from diesel engines is considered. Two options are examined, modifying the requirements of the chemistry of the Thermal DeNOx process to suit the conditions provided by diesel engines and modifying the engines to provide the conditions required by the process chemistry. While the former examination did not reveal any promising opportunities, the latter did. Turbocharged diesel engine systems in which the turbocharger is a net producer of power seem capable of providing the conditions necessary for NOx reduction via the Thermal DeNOx reaction.

  16. Magnetofluid dynamics in curved spacetime (Journal Article) ...

    Office of Scientific and Technical Information (OSTI)

    Magnetofluid dynamics in curved spacetime Citation Details In-Document Search Title: Magnetofluid dynamics in curved spacetime Authors: Bhattacharjee, Chinmoy ; Das, Rupam ; ...

  17. Spherical nanoindentation stress–strain curves

    DOE PAGES [OSTI]

    Pathak, Siddhartha; Kalidindi, Surya R.

    2015-03-24

    Although indentation experiments have long been used to measure the hardness and Young's modulus, the utility of this technique in analyzing the complete elastic–plastic response of materials under contact loading has only been realized in the past few years – mostly due to recent advances in testing equipment and analysis protocols. This paper provides a timely review of the recent progress made in this respect in extracting meaningful indentation stress–strain curves from the raw datasets measured in instrumented spherical nanoindentation experiments. These indentation stress–strain curves have produced highly reliable estimates of the indentation modulus and the indentation yield strength inmore » the sample, as well as certain aspects of their post-yield behavior, and have been critically validated through numerical simulations using finite element models as well as direct in situ scanning electron microscopy (SEM) measurements on micro-pillars. Much of this recent progress was made possible through the introduction of a new measure of indentation strain and the development of new protocols to locate the effective zero-point of initial contact between the indenter and the sample in the measured datasets. As a result, this has led to an important key advance in this field where it is now possible to reliably identify and analyze the initial loading segment in the indentation experiments.« less

  18. Spherical nanoindentation stress–strain curves

    SciTech Connect

    Pathak, Siddhartha; Kalidindi, Surya R.

    2015-03-24

    Although indentation experiments have long been used to measure the hardness and Young's modulus, the utility of this technique in analyzing the complete elastic–plastic response of materials under contact loading has only been realized in the past few years – mostly due to recent advances in testing equipment and analysis protocols. This paper provides a timely review of the recent progress made in this respect in extracting meaningful indentation stress–strain curves from the raw datasets measured in instrumented spherical nanoindentation experiments. These indentation stress–strain curves have produced highly reliable estimates of the indentation modulus and the indentation yield strength in the sample, as well as certain aspects of their post-yield behavior, and have been critically validated through numerical simulations using finite element models as well as direct in situ scanning electron microscopy (SEM) measurements on micro-pillars. Much of this recent progress was made possible through the introduction of a new measure of indentation strain and the development of new protocols to locate the effective zero-point of initial contact between the indenter and the sample in the measured datasets. As a result, this has led to an important key advance in this field where it is now possible to reliably identify and analyze the initial loading segment in the indentation experiments.

  19. Spherical nanoindentation stressstrain curves

    SciTech Connect

    Pathak, Siddhartha; Kalidindi, Surya R.

    2015-03-24

    Although indentation experiments have long been used to measure the hardness and Young's modulus, the utility of this technique in analyzing the complete elasticplastic response of materials under contact loading has only been realized in the past few years mostly due to recent advances in testing equipment and analysis protocols. This paper provides a timely review of the recent progress made in this respect in extracting meaningful indentation stressstrain curves from the raw datasets measured in instrumented spherical nanoindentation experiments. These indentation stressstrain curves have produced highly reliable estimates of the indentation modulus and the indentation yield strength in the sample, as well as certain aspects of their post-yield behavior, and have been critically validated through numerical simulations using finite element models as well as direct in situ scanning electron microscopy (SEM) measurements on micro-pillars. Much of this recent progress was made possible through the introduction of a new measure of indentation strain and the development of new protocols to locate the effective zero-point of initial contact between the indenter and the sample in the measured datasets. As a result, this has led to an important key advance in this field where it is now possible to reliably identify and analyze the initial loading segment in the indentation experiments.

  20. Expansion of decline curve parameters for tight gas sands with massive hydraulic fractures

    SciTech Connect

    Schaefer, T.

    1995-12-31

    With the advances in modern hydrocarbon technology and expansion of geologic settings for development, it is necessary to make changes to the conventional wisdoms that accompany production technology. This paper discusses some possible changes that necessitate implementation as observed both empirically and analytically. Specifically it discusses the time at which a decline curve can be implemented for production forecasting, the need for a dual decline model, and the severity of the decline variable that may be used for this model. It is the point of this paper to prove that for fight gas sands with massive hydraulic fractures that it is not only feasible to use decline variables that are greater than the traditional limit of harmonic or 1.0, but that the decline curve may also be implemented in the transient flow period of the well and decline both hyperbolically and exponentially. These ideas were not only proven through field study, but were additionally modeled with a fracture flow simulator. In order to prove these points this paper first introduces the Red Fork Formation and the development of an initial field model curve for this formation. After the initial model was developed, questions arose as to its feasibility. These questions were first addressed with a literature survey and further comparisons were made to test the models accuracy using pressure decline analysis and a fracture flow simulator. All of these methods were used to justify the implementation of a decline exponent as high as 2.1 for a hyperbolic curve during the early transient flow period, and regressing this hyperbolic into an exponential decline in the pseudo-steady state period.

  1. Technologic improvements in screen-film mammography

    SciTech Connect

    Haus, A.G. )

    1990-03-01

    During the past 20 years, many significant technologic improvements in mammographic x-ray equipment and screen-film-processing systems have occurred. Today it is possible to obtain mammograms with higher image quality at a significantly lower radiation dose, compared with mammograms dating back about 20 years. In this review article, clinical image comparisons and technical information--including x-ray spectra, limiting geometric resolution, sensitometric characteristic curves, modulation transfer function, and noise power spectra--are used to demonstrate technologic improvements in mammographic image quality.48 references.

  2. Visualization of Growth Curve Data from Phenotype MicroarrayExperiments

    SciTech Connect

    Jacobsen, Janet S.; Joyner, Dominique C.; Borglin, Sharon E.; Hazen, Terry C.; Arkin, Adam P.; Bethel, E. Wes

    2007-04-19

    Phenotype microarrays provide a technology to simultaneouslysurvey the response of an organism to nearly 2,000 substrates, includingcarbon, nitrogen and potassium sources; varying pH; varying saltconcentrations; and antibiotics. In order to more quickly and easily viewand compare the large number of growth curves produced by phenotypemicroarray experiments, we have developed software to produce and displaycolor images, each of which corresponds to a set of 96 growth curves.Using color images to represent growth curves data has proven to be avaluable way to assess experiment quality, compare replicates, facilitatecomparison of the responses of different organisms, and identifysignificant phenotypes. The color images are linked to traditional plotsof growth versus time, as well as to information about the experiment,organism, and substrate. In order to share and view information and dataproject-wide, all information, plots, and data are accessible using onlya Web browser.

  3. The hidden X-ray breaks in afterglow light curves

    SciTech Connect

    Curran, P. A.; Wijers, R. A. M. J.; Horst, A. J. van der; Starling, R. L. C.

    2008-05-22

    Gamma-Ray Burst (GRB) afterglow observations in the Swift era have a perceived lack of achromatic jet breaks compared to the BeppoSAX, or pre-Swift era. Specifically, relatively few breaks, consistent with jet breaks, are observed in the X-ray light curves of these bursts. If these breaks are truly missing, it has serious consequences for the interpretation of GRB jet collimation and energy requirements, and the use of GRBs as standard candles.Here we address the issue of X-ray breaks which are possibly 'hidden' and hence the light curves are misinterpreted as being single power-laws. We show how a number of precedents, including GRB 990510 and GRB 060206, exist for such hidden breaks and how, even with the well sampled light curves of the Swift era, these breaks may be left misidentified. We do so by synthesising X-ray light curves and finding general trends via Monte Carlo analysis. Furthermore, in light of these simulations, we discuss how to best identify achromatic breaks in afterglow light curves via multi-wavelength analysis.

  4. New National Wind Potential Estimates for Modern and Near-Future Turbine Technologies (Poster)

    SciTech Connect

    Roberts, J. O.

    2014-01-01

    Recent advancements in utility-scale wind turbine technology and pricing have vastly increased the potential land area where turbines can be deployed in the United States. This presentation quantifies the new developable land potential (e.g., capacity curves), visually identifies new areas for possible development (e.g., new wind resource maps), and begins to address deployment barriers to wind in new areas for modern and future turbine technology.

  5. Green Purchasing & Green Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Purchasing & Technology Goals 6 & 7: Green Purchasing & Green Technology Our goal is to purchase and use environmentally sustainable products whenever possible and to implement...

  6. Non-Constant Learning Rates in Retrospective Experience Curve Analyses and their Correlation to Deployment Programs

    Energy.gov [DOE]

    This work provides retrospective experience curves and learning rates for several energy-related technologies, each of which have a known history of federal and state deployment programs. We derive learning rates for eight technologies including energy efficient lighting technologies, stationary fuel cell systems, and residential solar photovoltaics, and provide an overview and timeline of historical deployment programs such as state and federal standards and state and national incentive programs for each technology.

  7. Student ENG 505 - Energy Technologies Systems and Applications...

    Office of Scientific and Technical Information (OSTI)

    Student ENG 505 - Energy Technologies Systems and Applications: Shale Gas Production Curve. Citation Details In-Document Search Title: Student ENG 505 - Energy Technologies Systems...

  8. LIGHT CURVES OF 32 LARGE TRANSNEPTUNIAN OBJECTS

    SciTech Connect

    Benecchi, Susan D.; Sheppard, Scott S.

    2013-05-15

    We present observations of 32 primarily bright, newly discovered Transneptunian objects (TNOs) observable from the Southern Hemisphere during 39 nights of observation with the Irenee du Pont 2.5 m telescope at Las Campanas Observatory. Our dataset includes objects in all dynamical classes, but is weighted toward scattered objects. We find 15 objects for which we can fit periods and amplitudes to the data, and place light curve amplitude upper limits on the other 17 objects. Combining our sample with the larger light curve sample in the literature, we find a 3{sigma} correlation between light curve amplitude and absolute magnitude with fainter objects having larger light curve amplitudes. We looked for correlations between light curve and individual orbital properties, but did not find any statistically significant results. However, if we consider light curve properties with respect to object dynamical classification, we find statistically different distributions between the classical-scattered and classical-resonant populations at the 95.60% and 94.64% level, respectively, with the classical objects having larger amplitude light curves. The significance is 97.05% if the scattered and resonant populations are combined. The properties of binary light curves are largely consistent with the greater TNO population except in the case of tidally locked systems. All the Haumea family objects measured so far have light curve amplitudes and rotation periods {<=}10 hr, suggesting that they are not significantly different from the larger TNO population. We expect multiple factors are influencing object rotations: object size dominates light curve properties except in the case of tidal, or proportionally large collisional interactions with other TNOs, the influence of the latter being different for each TNO sub-population. We also present phase curves and colors for some of our objects.

  9. Shifting the cost curve for subsea developments

    SciTech Connect

    Solheim, B.J.; Hestad, E.

    1995-12-31

    A steadily increasing challenge in offshore oil and gas field developments in the Norwegian part of the North Sea is to design, construct, and install offshore installations that give an acceptable return of investment Deeper water, limited reservoirs and a low, fluctuating oil price make the task even more demanding. Saga Petroleum has recently faced this challenge with its last field development project. Attention in this paper is focused on the Vigdis subsea production system. However, the considerations and cost reduction elements are valid for offshore field developments in general. The main cost reductions are obtained by: Maximum use of industry capability; Application of new organization principles; Focus on functional requirements; Shortened project execution time; Technological development. In addition this paper presents thoughts on further cost reduction possibilities for future subsea field developments.

  10. Retrospective North American CFL Experience Curve Analysis and Correlation to Deployment Programs

    SciTech Connect

    Smith, Sarah J.; Wei, Max; Sohn, Michael D.

    2015-07-01

    Retrospective experience curves are a useful tool for understanding historic technology development, and can contribute to investment program analysis and future cost estimation efforts. This work documents our development of an analysis approach for deriving retrospective experience curves with a variable learning rate, and its application to develop an experience curve for compact fluorescent lamps for the global and North American markets over the years 1990-2007. Uncertainties and assumptions involved in interpreting data for our experience curve development are discussed, including the processing and transformation of empirical data, the selection of system boundaries, and the identification of historical changes in the learning rate over the course of 15 years. In the results that follow, we find that that the learning rate has changed at least once from 1990-2007. We also explore if, and to what degree, public deployment programs may have contributed to an increased technology learning rate in North America. We observe correlations between the changes in the learning rate and the initiation of new policies, abrupt technological advances, including improvements to ballast technology, and economic and political events such as trade tariffs and electricity prices. Finally, we discuss how the findings of this work (1) support the use of segmented experience curves for retrospective and prospective analysis and (2) may imply that investments in technological research and development have contributed to a change in market adoption and penetration.

  11. Non-Constant Learning Rates in Retrospective Experience Curve Analyses and their Correlation to Deployment Programs

    SciTech Connect

    Wei, Max; Smith, Sarah J.; Sohn, Michael D.

    2015-07-16

    A key challenge for policy-makers and technology market forecasters is to estimate future technology costs and in particular the rate of cost reduction versus production volume. A related, critical question is what role should state and federal governments have in advancing energy efficient and renewable energy technologies? This work provides retrospective experience curves and learning rates for several energy-related technologies, each of which have a known history of federal and state deployment programs. We derive learning rates for eight technologies including energy efficient lighting technologies, stationary fuel cell systems, and residential solar photovoltaics, and provide an overview and timeline of historical deployment programs such as state and federal standards and state and national incentive programs for each technology. Piecewise linear regimes are observed in a range of technology experience curves, and public investments or deployment programs are found to be strongly correlated to an increase in learning rate across multiple technologies. A downward bend in the experience curve is found in 5 out of the 8 energy-related technologies presented here (electronic ballasts, magnetic ballasts, compact fluorescent lighting, general service fluorescent lighting, and the installed cost of solar PV). In each of the five downward-bending experience curves, we believe that an increase in the learning rate can be linked to deployment programs to some degree. This work sheds light on the endogenous versus exogenous contributions to technological innovation and highlights the impact of exogenous government sponsored deployment programs. This work can inform future policy investment direction and can shed light on market transformation and technology learning behavior.

  12. NREL Analysis Insights: Renewable Energy On The Grid, Redefining What's Possible (Brochure), NREL (National Renewable Energy Laboratory)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    3367 A P R I L 2 0 1 5 A N A LY S I S I N S I G H T S RENEWABLE ENERGY ON THE GRID Redefining What's Possible 2 RENEWABLE ENERGY ON THE GRID Environmental regulations, state-level portfolio standards, new methods for accessing natural gas reserves and aging power plants are opening opportunities for new electricity generation from renewable resources and natural gas. Advances in efficiency and smart grid technologies also have the potential to change historical demand curves. New renewable

  13. Updated U.S. Geothermal Supply Curve

    SciTech Connect

    Augustine, C.; Young, K. R.; Anderson, A.

    2010-02-01

    This paper documents the approach used to update the U.S. geothermal supply curve. The analysis undertaken in this study estimates the supply of electricity generation potential from geothermal resources in the United States and the levelized cost of electricity (LCOE), capital costs, and operating and maintenance costs associated with developing these geothermal resources. Supply curves were developed for four categories of geothermal resources: identified hydrothermal (6.4 GWe), undiscovered hydrothermal (30.0 GWe), near-hydrothermal field enhanced geothermal systems (EGS) (7.0 GWe) and deep EGS (15,900 GWe). Two cases were considered: a base case and a target case. Supply curves were generated for each of the four geothermal resource categories for both cases. For both cases, hydrothermal resources dominate the lower cost range of the combined geothermal supply curve. The supply curves indicate that the reservoir performance improvements assumed in the target case could significantly lower EGS costs and greatly increase EGS deployment over the base case.

  14. Trend curve data development and testing

    SciTech Connect

    McElroy, W.N.; Gold, R.; Simons, R.L.; Roberts, J.H.

    1986-01-01

    Existing trend curves do not account for previous and more recently observed test and power reactor flux-level, thermal neutron and ..gamma..-ray field-induced effects. Any agreement between measured data and trend curve predictions that does not adequately represent the important neutron environmental and temperature effects as well as the microstructural damage processes, therefore, could be fortuitous. Empirically derived end-of-life (EOL) and life-extension-range (LER) trend curves are presented and discussed in this paper for high temperature (approx.288/sup 0/C (550/sup 0/F)) irradiation of two weld, two plate, and two forging pressure vessel (PV) steels and low-temperature (approx.60/sup 0/C (140/sup 0/F)) irradiation of one support structure-type steel.

  15. Integrated X-ray Reflectivity Measurements for Elliptically Curved...

    Office of Scientific and Technical Information (OSTI)

    Title: Integrated X-ray Reflectivity Measurements for Elliptically Curved PET Crystals The elliptically curved pentaerythritol (PET) crystals used in the Supersnout 2 X-ray ...

  16. Parallel Integral Curves (Book) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Book: Parallel Integral Curves Citation Details In-Document Search Title: Parallel Integral Curves Authors: Pugmire, Dave 1 ; Peterka, Tom 2 ; ...

  17. Estimating Carbon Supply Curves for Global Forests and Other...

    OpenEI (Open Energy Information) [EERE & EIA]

    Estimating Carbon Supply Curves for Global Forests and Other Land Uses Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Estimating Carbon Supply Curves for Global Forests...

  18. Motor Systems Efficiency Supply Curves | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Motor Systems Efficiency Supply Curves Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Motor Systems Efficiency Supply Curves AgencyCompany Organization: United...

  19. Light extraction block with curved surface

    DOEpatents

    Levermore, Peter; Krall, Emory; Silvernail, Jeffrey; Rajan, Kamala; Brown, Julia J.

    2016-03-22

    Light extraction blocks, and OLED lighting panels using light extraction blocks, are described, in which the light extraction blocks include various curved shapes that provide improved light extraction properties compared to parallel emissive surface, and a thinner form factor and better light extraction than a hemisphere. Lighting systems described herein may include a light source with an OLED panel. A light extraction block with a three-dimensional light emitting surface may be optically coupled to the light source. The three-dimensional light emitting surface of the block may includes a substantially curved surface, with further characteristics related to the curvature of the surface at given points. A first radius of curvature corresponding to a maximum principal curvature k.sub.1 at a point p on the substantially curved surface may be greater than a maximum height of the light extraction block. A maximum height of the light extraction block may be less than 50% of a maximum width of the light extraction block. Surfaces with cross sections made up of line segments and inflection points may also be fit to approximated curves for calculating the radius of curvature.

  20. Updated Hubbert curves analyze world oil supply

    SciTech Connect

    Ivanhoe, L.F.

    1996-11-01

    The question is not whether, but when, world crude oil production will start to decline, ushering in the permanent oil shock era. While global information for predicting this event is not so straightforward as the data M. King Hubbert used in creating his famous Hubbert Curve that predicted the US (Lower 48 states, or US/48) 1970 oil production peak, there are strong indications that most of the world`s large exploration targets have now been found. Meanwhile, the earth`s population is exploding along with the oil needs of Asia`s developing nations. This article reviews Hubbert`s original analyses on oil discovery and production curves for the US/48 and projects his proven methodology onto global oil discoveries and production as of 1992. The world`s oil discovery curve peaked in 1962, and thence declined, as a Hubbert Curve predicts. However, global production was restricted after the 1973 Arab oil embargo. Otherwise, world production would have peaked in the mid-1990s. Two graphs show alternate versions of future global oil production.

  1. Curved butterfly bileaflet prosthetic cardiac valve

    DOEpatents

    McQueen, David M.; Peskin, Charles S.

    1991-06-25

    An annular valve body having a central passageway for the flow of blood therethrough with two curved leaflets each of which is pivotally supported on an accentric positioned axis in the central passageway for moving between a closed position and an open position. The leaflets are curved in a plane normal to the eccentric axis and positioned with the convex side of the leaflets facing each other when the leaflets are in the open position. Various parameters such as the curvature of the leaflets, the location of the eccentric axis, and the maximum opening angle of the leaflets are optimized according to the following performance criteria: maximize the minimum peak velocity through the valve, maximize the net stroke volume, and minimize the mean forward pressure difference, thereby reducing thrombosis and improving the hemodynamic performance.

  2. Incorporating Experience Curves in Appliance Standards Analysis

    SciTech Connect

    Garbesi, Karina; Chan, Peter; Greenblatt, Jeffery; Kantner, Colleen; Lekov, Alex; Meyers, Stephen; Rosenquist, Gregory; Buskirk, Robert Van; Yang, Hung-Chia; Desroches, Louis-Benoit

    2011-10-31

    The technical analyses in support of U.S. energy conservation standards for residential appliances and commercial equipment have typically assumed that manufacturing costs and retail prices remain constant during the projected 30-year analysis period. There is, however, considerable evidence that this assumption does not reflect real market prices. Costs and prices generally fall in relation to cumulative production, a phenomenon known as experience and modeled by a fairly robust empirical experience curve. Using price data from the Bureau of Labor Statistics, and shipment data obtained as part of the standards analysis process, we present U.S. experience curves for room air conditioners, clothes dryers, central air conditioners, furnaces, and refrigerators and freezers. These allow us to develop more representative appliance price projections than the assumption-based approach of constant prices. These experience curves were incorporated into recent energy conservation standards for these products. The impact on the national modeling can be significant, often increasing the net present value of potential standard levels in the analysis. In some cases a previously cost-negative potential standard level demonstrates a benefit when incorporating experience. These results imply that past energy conservation standards analyses may have undervalued the economic benefits of potential standard levels.

  3. ENERGY EFFICIENCY TECHNOLOGY ROADMAP

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    managed the overall development and maturation of this Energy Efficiency Technology Roadmap, the effort would not have been possible without the active engagement of a diverse...

  4. ASME95_CurveFit.PDF

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    MODELS ON FATIGUE LIFE PREDICTIONS 1 Herbert J. Sutherland and Paul S. Veers Wind Energy Technology Sandia National Laboratories Albuquerque, NM 87185-0708 ABSTRACT 1 The...

  5. Calibrating Curved Crystals Used for Plasma Spectroscopy

    SciTech Connect

    Haugh, M. J., Jacoby, K. D., Ross, P. W., Rochau, G. Wu, M., Regan, S. P., Barrios, M. A.

    2012-10-29

    The throughput and resolving power of an X-ray spectrometer that uses a curved crystal as the diffraction element is determined primarily by the crystal X-ray reflectivity properties. This poster presents a measurement technique for these crystal parameters using a simple diode source to produce a narrow spectral band. The results from measurements on concave elliptical polyethylene terephthalate (PET) crystals and convex potassium acid phthalate (KAP) crystals show large variations in the key parameters compared to those from the flat crystal.

  6. High speed curved position sensitive detector

    DOEpatents

    Hendricks, Robert W.; Wilson, Jack W.

    1989-01-01

    A high speed curved position sensitive porportional counter detector for use in x-ray diffraction, the detection of 5-20 keV photons and the like. The detector employs a planar anode assembly of a plurality of parallel metallic wires. This anode assembly is supported between two cathode planes, with at least one of these cathode planes having a serpentine resistive path in the form of a meander having legs generally perpendicular to the anode wires. This meander is produced by special microelectronic fabrication techniques whereby the meander "wire" fans outwardly at the cathode ends to produce the curved aspect of the detector, and the legs of the meander are small in cross-section and very closely spaced whereby a spatial resolution of about 50 .mu.m can be achieved. All of the other performance characteristics are about as good or better than conventional position sensitive proportional counter type detectors. Count rates of up to 40,000 counts per second with 0.5 .mu.s shaping time constants are achieved.

  7. McKinsey Carbon Supply Curves | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Carbon Supply Curves Jump to: navigation, search Tool Summary LAUNCH TOOL Name: McKinsey Carbon Supply Curves AgencyCompany Organization: McKinsey and Company Sector: Energy,...

  8. ECN GHG Marginal Abatement Cost curves (NAMAC) | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    likely to be large. The curve was also reviewed and updated by regional experts in Latin America, Asia and Africa. * In 2008-2009, the MAC curve was used for two projects for the...

  9. Fuel Cell Tech Team Accelerated Stress Test and Polarization Curve

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Protocols for PEM Fuel Cells | Department of Energy Tech Team Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells Fuel Cell Tech Team Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells Accelerated stress test and polarization curve protocols developed by the U.S. DRIVE Fuel Cell Technical Team for polymer electrolyte membrane (PEM) fuel cells, revised January 14, 2013. Fuel Cell Tech Team Accelerated Stress Test and Polarization Curve

  10. Local Orthogonal Cutting Method for Computing Medial Curves and...

    Office of Scientific and Technical Information (OSTI)

    BLOOD VESSELS; COMPUTERS; DIFFERENTIAL GEOMETRY; EFFICIENCY; EIGENVALUES; LUNGS; MINIMIZATION; RELIABILITY; SHAPE; SIMULATION; STABILITY; SURGERY curves and surfaces; ...

  11. D-Branes in Curved Space

    SciTech Connect

    McGreevy, John Austen; /Stanford U., Phys. Dept.

    2005-07-06

    This thesis is a study of D-branes in string compactifications. In this context, D-branes are relevant as an important component of the nonperturbative spectrum, as an incisive probe of these backgrounds, and as a natural stringy tool for localizing gauge interactions. In the first part of the thesis, we discuss half-BPS D-branes in compactifications of type II string theory on Calabi-Yau threefolds. The results we describe for these objects are pertinent both in their role as stringy brane-worlds, and in their role as solitonic objects. In particular, we determine couplings of these branes to the moduli determining the closed-string geometry, both perturbatively and non-perturbatively in the worldsheet expansion. We provide a local model for transitions in moduli space where the BPS spectrum jumps, and discuss the extension of mirror symmetry between Calabi-Yau manifolds to the case when D-branes are present. The next section is an interlude which provides some applications of D-branes to other curved backgrounds of string theory. In particular, we discuss a surprising phenomenon in which fundamental strings moving through background Ramond-Ramond fields dissolve into large spherical D3-branes. This mechanism is used to explain a previously-mysterious fact discovered via the AdS-CFT correspondence. Next, we make a connection between type IIA string vacua of the type discussed in the first section and M-theory compactifications on manifolds of G{sub 2} holonomy. Finally we discuss constructions of string vacua which do not have large radius limits. In the final part of the thesis, we develop techniques for studying the worldsheets of open strings ending on the curved D-branes studied in the first section. More precisely, we formulate a large class of massive two-dimensional gauge theories coupled to boundary matter, which flow in the infrared to the relevant boundary conformal field theories. Along with many other applications, these techniques are used to describe

  12. Reduced Calibration Curve for Proton Computed Tomography

    SciTech Connect

    Yevseyeva, Olga; Assis, Joaquim de; Diaz, Katherin

    2010-05-21

    The pCT deals with relatively thick targets like the human head or trunk. Thus, the fidelity of pCT as a tool for proton therapy planning depends on the accuracy of physical formulas used for proton interaction with thick absorbers. Although the actual overall accuracy of the proton stopping power in the Bethe-Bloch domain is about 1%, the analytical calculations and the Monte Carlo simulations with codes like TRIM/SRIM, MCNPX and GEANT4 do not agreed with each other. A tentative to validate the codes against experimental data for thick absorbers bring some difficulties: only a few data is available and the existing data sets have been acquired at different initial proton energies, and for different absorber materials. In this work we compare the results of our Monte Carlo simulations with existing experimental data in terms of reduced calibration curve, i.e. the range - energy dependence normalized on the range scale by the full projected CSDA range for given initial proton energy in a given material, taken from the NIST PSTAR database, and on the final proton energy scale - by the given initial energy of protons. This approach is almost energy and material independent. The results of our analysis are important for pCT development because the contradictions observed at arbitrary low initial proton energies could be easily scaled now to typical pCT energies.

  13. Calibration curves for some standard Gap Tests

    SciTech Connect

    Bowman, A.L.; Sommer, S.C.

    1989-01-01

    The relative shock sensitivities of explosive compositions are commonly assessed using a family of experiments that can be described by the generic term ''Gap Test.'' Gap tests include a donor charge, a test sample, and a spacer, or gap, between two explosives charges. The donor charge, gap material, and test dimensions are held constant within each different version of the gap test. The thickness of the gap is then varied to find the value at which 50% of the test samples will detonate. The gap tests measure the ease with a high-order detonation can be established in the test explosive, or the ''detonability,'' of the explosive. Test results are best reported in terms of the gap thickness at the 50% point. It is also useful to define the shock pressure transmitted into the test sample at the detonation threshold. This requires calibrating the gap test in terms of shock pressure in the gap as a function of the gap thickness. It also requires a knowledge of the shock Hugoniot of the sample explosive. We used the 2DE reactive hydrodynamic code with Forest Fire burn rates for the donor explosives to calculate calibration curves for several gap tests. The model calculations give pressure and particle velocity on the centerline of the experimental set-up and provide information about the curvature and pulse width of the shock wave. 10 refs., 1 fig.

  14. GIS Method for Developing Wind Supply Curves

    SciTech Connect

    Kline, D.; Heimiller, D.; Cowlin, S.

    2008-06-01

    This report describes work conducted by the National Renewable Energy Laboratory (NREL) as part of the Wind Technology Partnership (WTP) sponsored by the U.S. Environmental Protection Agency (EPA). This project has developed methods that the National Development and Reform Commission (NDRC) intends to use in the planning and development of China's 30 GW of planned capacity. Because of China's influence within the community of developing countries, the methods and the approaches here may help foster wind development in other countries.

  15. Multigroup Radiation Transport in Supernova Light Curve Calculations...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Technical Report: Multigroup Radiation Transport in Supernova Light Curve Calculations Citation Details In-Document Search Title: Multigroup ...

  16. Multigroup Radiation Transport in Supernova Light Curve Calculations...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Multigroup Radiation Transport in Supernova Light Curve Calculations Citation Details In-Document Search Title: Multigroup Radiation Transport in Supernova Light ...

  17. Accelerated Stress Test and Polarization Curve Protocols for...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Team Cell Component Accelerated Stress Test and Polarization Curve Protocols for PEM ... This document describes test protocols to assess the performance and durability of fuel ...

  18. SUPERNOVA NEUTRINO LIGHT CURVES AND SPECTRA FOR VARIOUS PROGENITOR...

    Office of Scientific and Technical Information (OSTI)

    FROM CORE COLLAPSE TO PROTO-NEUTRON STAR COOLING Citation Details In-Document Search Title: SUPERNOVA NEUTRINO LIGHT CURVES AND SPECTRA FOR VARIOUS PROGENITOR STARS: FROM CORE ...

  19. Procedure for measuring the solar reflectance of flat or curved...

    Office of Scientific and Technical Information (OSTI)

    Procedure for measuring the solar reflectance of flat or curved roofing assemblies Citation Details In-Document Search Title: Procedure for measuring the solar reflectance of flat ...

  20. Integrated X-Ray Reflectivity Measurements for Elliptically Curved...

    Office of Scientific and Technical Information (OSTI)

    Integrated X-Ray Reflectivity Measurements for Elliptically Curved PET Crystals Citation Details In-Document Search Title: Integrated X-Ray Reflectivity Measurements for ...

  1. LIGHT CURVES OF 32 LARGE TRANSNEPTUNIAN OBJECTS (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    TNO population except in the case of tidally locked systems. more All the Haumea family objects measured so far have light curve amplitudes and rotation periods <10 hr,...

  2. Receiver Operating Characteristic (ROC) Curves: An Analysis Tool...

    Office of Scientific and Technical Information (OSTI)

    for Detection Performance Citation Details In-Document Search Title: Receiver Operating Characteristic (ROC) Curves: An Analysis Tool for Detection Performance You are ...

  3. Multigroup Radiation Transport in Supernova Light Curve Calculations...

    Office of Scientific and Technical Information (OSTI)

    Multigroup Radiation Transport in Supernova Light Curve Calculations Even, Wesley P. Los Alamos National Laboratory; Frey, Lucille H. Los Alamos National Laboratory; Fryer,...

  4. Selected GHG Emission Supply Curves | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Selected GHG Emission Supply Curves AgencyCompany Organization: Northwest Power and Conservation Council Sector: Energy Focus Area: Conventional Energy, Energy Efficiency,...

  5. Receiver Operating Characteristic (ROC) Curves: An Analysis Tool...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Receiver Operating Characteristic (ROC) Curves: An Analysis Tool for Detection Performance Citation Details In-Document Search Title: Receiver Operating ...

  6. Symmetries for Galileons and DBI scalars on curved space

    SciTech Connect

    Goon, Garrett; Hinterbichler, Kurt; Trodden, Mark E-mail: kurthi@physics.upenn.edu

    2011-07-01

    We introduce a general class of four-dimensional effective field theories which include curved space Galileons and DBI theories possessing nonlinear shift-like symmetries. These effective theories arise from purely gravitational actions for 3-branes probing higher dimensional spaces. In the simplest case of a Minkowski brane embedded in a higher dimensional Minkowski background, the resulting four-dimensional effective field theory is the Galileon one, with its associated Galilean symmetry and second order equations. However, much more general structures are possible. We construct the general theory and explicitly derive the examples obtained from embedding maximally symmetric branes in maximally symmetric ambient spaces. Among these are Galileons and DBI theories with second order equations that live on de Sitter or anti-de Sitter space, and yet retain the same number of symmetries as their flat space counterparts, symmetries which are highly non-trivial from the 4d point of view. These theories have a rich structure, containing potentials for the scalar fields, with masses protected by the symmetries. These models may prove relevant to the cosmology of both the early and late universe.

  7. THE TRANSIT LIGHT CURVE OF AN EXOZODIACAL DUST CLOUD

    SciTech Connect

    Stark, Christopher C.

    2011-10-15

    Planets embedded within debris disks gravitationally perturb nearby dust and can create clumpy, azimuthally asymmetric circumstellar ring structures that rotate in lock with the planet. The Earth creates one such structure in the solar zodiacal dust cloud. In an edge-on system, the dust 'clumps' periodically pass in front of the star as the planet orbits, occulting and forward-scattering starlight. In this paper, we predict the shape and magnitude of the corresponding transit signal. To do so, we model the dust distributions of collisional, steady-state exozodiacal clouds perturbed by planetary companions. We examine disks with dusty ring structures formed by the planet's resonant trapping of in-spiraling dust for a range of planet masses and semi-major axes, dust properties, and disk masses. We synthesize edge-on images of these models and calculate the transit signatures of the resonant ring structures. The transit light curves created by dusty resonant ring structures typically exhibit two broad transit minima that lead and trail the planetary transit. We find that Jupiter-mass planets embedded within disks hundreds of times denser than our zodiacal cloud can create resonant ring structures with transit depths up to {approx}10{sup -4}, possibly detectable with Kepler. Resonant rings produced by planets more or less massive than Jupiter produce smaller transit depths. Observations of these transit signals may provide upper limits on the degree of asymmetry in exozodiacal clouds.

  8. The role of artificial intelligence in design possibilities and pitfalls

    SciTech Connect

    Middleton, R.H.; Rees, D.; Esat, I.; Phillips, G.

    1996-12-31

    Design is often considered a human-only activity requiring a creativity and intelligence not available to computers. In recent years CAD and related technologies have become widespread, improvements in AI technology are enabling computers to assist in areas of the design process that were previously inaccessible. This paper looks at the role which AI is playing in design. The potential future uses of this technology, as well as possible problems which may arise are also considered.

  9. Automatic meshing of curved three-dimensional domains: Curving finite elements and curvature-based mesh control

    SciTech Connect

    Shephard, M.S.; Dey, S.; Georges, M.K.

    1995-12-31

    Specific issues associated with the automatic generation of finite element meshes for curved geometric domains axe considered. A review of the definition of when a triangulation is a valid mesh, a geometric triangulation, for curved geometric domains is given. Consideration is then given to the additional operations necessary to maintain the validity of a mesh when curved finite elements are employed. A procedure to control the mesh gradations based on the curvature of the geometric model faces is also given.

  10. Information content of nonautonomous free fields in curved space-time

    SciTech Connect

    Parreira, J. E.; Nemes, M. C.; Fonseca-Romero, K. M.

    2011-03-15

    We show that it is possible to quantify the information content of a nonautonomous free field state in curved space-time. A covariance matrix is defined and it is shown that, for symmetric Gaussian field states, the matrix is connected to the entropy of the state. This connection is maintained throughout a quadratic nonautonomous (including possible phase transitions) evolution. Although particle-antiparticle correlations are dynamically generated, the evolution is isoentropic. If the current standard cosmological model for the inflationary period is correct, in absence of decoherence such correlations will be preserved, and could potentially lead to observable effects, allowing for a test of the model.

  11. Vehicle Technologies Office: Technologies

    Office of Energy Efficiency and Renewable Energy (EERE)

    To support DOE's goal to provide clean and secure energy, the Vehicle Technologies Office (VTO) invests in research and development that:

  12. Inherent Driving Force for Charge Separation in Curved Stacks of Oligothiophenes

    SciTech Connect

    Wu, Qin

    2015-01-30

    Coexistence of high local charge mobility and an energy gradient can lead to efficient free charge carrier generation from geminate charge transfer states at the donor–acceptor interface in bulk heterojunction organic photovoltaics. It is, however, not clear what polymer microstructures can support such coexistence. Using recent methods from density functional theory, we propose that a stack of similarly curved oligothiophene chains can deliver the requirements for efficient charge separation. Curved stacks are stable because of the polymer’s strong π-stacking ability and because backbone torsions are flexible in neutral chains. However, energy of a charge in a polymer chain has remarkably stronger dependence on torsions. The trend of increasing planarity in curved stacks effectively creates an energy gradient that drives charge in one direction. The curvature of these partially ordered stacks is found to beneficially interact with fullerenes for charge separation. The curved stacks, therefore, are identified as possible building blocks for interfacial structures that lead to efficient free carrier generation in high-performing organic photovoltaic systems.

  13. Inherent Driving Force for Charge Separation in Curved Stacks of Oligothiophenes

    DOE PAGES [OSTI]

    Wu, Qin

    2015-01-30

    Coexistence of high local charge mobility and an energy gradient can lead to efficient free charge carrier generation from geminate charge transfer states at the donor–acceptor interface in bulk heterojunction organic photovoltaics. It is, however, not clear what polymer microstructures can support such coexistence. Using recent methods from density functional theory, we propose that a stack of similarly curved oligothiophene chains can deliver the requirements for efficient charge separation. Curved stacks are stable because of the polymer’s strong π-stacking ability and because backbone torsions are flexible in neutral chains. However, energy of a charge in a polymer chain has remarkablymore » stronger dependence on torsions. The trend of increasing planarity in curved stacks effectively creates an energy gradient that drives charge in one direction. The curvature of these partially ordered stacks is found to beneficially interact with fullerenes for charge separation. The curved stacks, therefore, are identified as possible building blocks for interfacial structures that lead to efficient free carrier generation in high-performing organic photovoltaic systems.« less

  14. Thermal stability of curved ray tomography for corrosion monitoring

    SciTech Connect

    Willey, C. L.; Simonetti, F.; Nagy, P. B.; Instanes, G.

    2014-02-18

    Guided wave tomography is being developed as an effective tool for continuous monitoring of corrosion and erosion depth in pipelines. A pair of transmit- and receive-ring arrays of ultrasonic transducers encircles the pipe and delimits the section to be monitored. In curved ray tomography (CRT), the depth profile is estimated from the time delay matrix, Δτ, whose ij-th entry is the phase traveltime difference between the current and baseline signals measured between transducers i and j of the transmit and receive-ring arrays, respectively. Under perfectly stable experimental conditions, the non-zero entries of Δτ are only due to the occurrence of damage and provide a reliable input to CRT. However, during field operation, Δτ can develop non-zero entries due to a number of environmental changes ranging from temperature variations to degradation of transducer-pipe coupling and transducer intrinsic performance. Here, we demonstrate that these sources of instability can be eliminated by exploiting the spatial diversity of array measurements in conjunction with EMAT transducer technology which is intrinsically stable owing to its non-contact nature. The study is based on a full-scale experiment performed on a schedule 40, 8’ diameter, 3 m length steel pipe, monitored with two EMAT ring arrays. It is shown that for an irregularly shaped defect the proposed method yields maximum depth estimations that are as accurate as single point ultrasonic thickness gaging measurements and over a wide temperature range up to 175°C. The results indicate that advanced inversion schemes in combination with EMAT transduction offer great potential for continuously monitoring the progression of corrosion or erosion damage in the oil and gas industry.

  15. Progress Report on Alloy 617 Isochronous Stress-Strain Curves

    SciTech Connect

    Jill K. Wright; Richard N. Wright; Nancy J. Lybeck

    2014-03-01

    Isochronous stress-strain curves for Alloy 617 up to a temperature of 1000°C will be required to qualify the material for elevated temperature design in Section III, Division 1, Subsection NH of the ASME Boiler and Pressure Vessel Code. Several potential methods for developing these curves are reviewed in this report. It is shown that in general power-law creep is the rate controlling deformation mechanism for a wide range of alloy heats, test temperatures and stresses. Measurement of the strain rate sensitivity of Alloy 617 indicates that the material is highly strain rate sensitive in the tensile deformation range above about 750°C. This suggests that the concept of a hot tensile curve as a bounding case on the isochronous stress-strain diagrams is problematic. The impact of strain rate on the hot tensile curves is examined and it is concluded that incorporating such a curve is only meaningful if a single tensile strain rate (typically the ASTM standard rate of 0.5%/min) is arbitrarily defined. Current experimentally determined creep data are compared to isochronous stress-strain curves proposed previously by the German programs in the 1980s and by the 1990 draft ASME Code Case. Variability in how well the experimental data are represented by the proposed design curves that suggests further analysis is necessary prior to completing a new draft Code Case.

  16. Exhaustive search system and method using space-filling curves

    DOEpatents

    Spires, Shannon V.

    2003-10-21

    A search system and method for one agent or for multiple agents using a space-filling curve provides a way to control one or more agents to cover an area of any space of any dimensionality using an exhaustive search pattern. An example of the space-filling curve is a Hilbert curve. The search area can be a physical geography, a cyberspace search area, or an area searchable by computing resources. The search agent can be one or more physical agents, such as a robot, and can be software agents for searching cyberspace.

  17. Bolometric and UV light curves of core-collapse supernovae

    SciTech Connect

    Pritchard, T. A.; Roming, P. W. A.; Brown, Peter J.; Bayless, Amanda J.; Frey, Lucille H.

    2014-06-01

    The Swift UV-Optical Telescope (UVOT) has been observing core-collapse supernovae (CCSNe) of all subtypes in the UV and optical since 2005. Here we present 50 CCSNe observed with the Swift UVOT, analyzing their UV properties and behavior. Where we have multiple UV detections in all three UV filters (λ {sub c} = 1928-2600 Å), we generate early time bolometric light curves, analyze the properties of these light curves and the UV contribution to them, and derive empirical corrections for the UV-flux contribution to optical-IR based bolometric light curves.

  18. REVISITING THE LIGHT CURVES OF GAMMA-RAY BURSTS IN THE RELATIVISTIC TURBULENCE MODEL

    SciTech Connect

    Lin, Da-Bin; Gu, Wei-Min; Hou, Shu-Jin; Liu, Tong; Sun, Mou-Yuan; Lu, Ju-Fu, E-mail: dabinlin@xmu.edu.cn, E-mail: lujf@xmu.edu.cn [Department of Astronomy and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005 (China)

    2013-10-10

    Rapid temporal variability has been widely observed in the light curves of gamma-ray bursts (GRBs). One possible mechanism for such variability is related to the relativistic eddies in the jet. In this paper, we include the contribution of the inter-eddy medium together with the eddies to the gamma-ray emission. We show that the gamma-ray emission can either lead or lag behind the observed synchrotron emission, where the latter originates in the inter-eddy medium and provides most of the seed photons for producing gamma-ray emission through inverse Compton scattering. As a consequence, we argue that the lead/lag found in non-stationary short-lived light curves may not reveal the intrinsic lead/lag of different emission components. In addition, our results may explain the lead of gamma-ray emission with respect to optical emission observed in GRB 080319B.

  19. DOE’s Deep Capabilities and Wide Possibilities Highlighted at Executive Summit on Marine and Hydrokinetic Research and Development

    Energy.gov [DOE]

    When it comes to marine and hydrokinetic technology development, the Department of Energy (DOE) offers deep capabilities and wide possibilities.

  20. The roles of the binodal curve and the spinodal curve in expansions from the supercritical state with flashing

    SciTech Connect

    Knuth, Eldon L.; Miller, David R.; Even, Uzi

    2014-12-09

    Data extracted from time-of-flight (TOF) measurements made on steady-state He free jets at Gttingen already in 1986 and for pulsed Ne free jets investigated recently at Tel Aviv have been added to an earlier plot of terminal condensed-phase mass fraction x{sub 2?} as a function of the dimensionless scaling parameter ?. ? characterizes the source (fluid species, temperature, pressure and throat diameter); values of x{sub 2?} are extracted from TOF measurements using conservation of energy in the free-jet expansion. For nozzles consisting of an orifice in a thin plate; the extracted data yield 22 data points which are correlated satisfactorily by a single curve. The Ne free jets were expanded from a conical nozzle with a 20 half angle; the three extracted data points stand together but apart from the aforementioned curve, indicating that the presence of the conical wall influences significantly the expansion and hence the condensation. The 22 data points for the expansions via an orifice consist of 15 measurements with expansions from the gas-phase side of the binodal curve which crossed the binodal curve downstream from the sonic point and 7 measurements with expansions of the gas-phase product of the flashing which occurred after an expansion from the liquid-phase side of the binodal curve crossed the binodal curve upstream from the sonic point. The association of these 22 points with a single curve supports the alternating-phase model for flows with flashing upstream from the sonic point proposed earlier. In order to assess the role of the spinodal curve in such expansions, the spinodal curves for He and Ne were computed using general multi-parameter Helmholtz-free-energy equation-of-state formulations. Then, for the several sets of source-chamber conditions used in the free-jet measurements, thermodynamic states at key locations in the free-jet expansions (binodal curve, sonic point and spinodal curve) were evaluated, with the expansion presumed to be

  1. Development of an Equivalent Wind Plant Power-Curve: Preprint

    SciTech Connect

    Wan, Y. H.; Ela, E.; Orwig, K.

    2010-06-01

    Development of an equivalent wind plant power-curve becomes highly desirable and useful in predicting plant output for a given wind forecast. Such a development is described and summarized in this paper.

  2. Multigroup Radiation Transport in Supernova Light Curve Calculations

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Multigroup Radiation Transport in Supernova Light Curve Calculations Citation Details In-Document Search Title: Multigroup Radiation Transport in Supernova Light Curve Calculations Authors: Even, Wesley P. [1] ; Frey, Lucille H. [1] ; Fryer, Christopher L. [1] ; Young, Patrick [2] + Show Author Affiliations Los Alamos National Laboratory Arizona State University Publication Date: 2013-04-29 OSTI Identifier: 1077017 Report Number(s): LA-UR-13-23060 DOE

  3. Beam-beam deflection and signature curves for elliptic beams

    SciTech Connect

    Ziemann, V.

    1990-10-22

    In this note we will present closed expressions for the beam-beam deflection angle for arbitrary elliptic beams including tilt. From these expressions signature curves, i.e., systematic deviations from the round beam deflection curve due to ellipticity or tilt are derived. In the course of the presentation we will prove that it is generally impossible to infer individual beam sizes from beam-beam deflection scans. 3 refs., 2 figs.

  4. Trend curve exposure parameter data development and testing

    SciTech Connect

    McElroy, W.N.; Gold, R.; Guthrie, G.L.; Lippincott, E.P.; Simons, R.L.

    1984-04-01

    An important aspect of the Light Water Reactor-Pressure Vessel-Surveillance Dosimetry Improvement Program is the Hanford Engineering Development Laboratory effort to develop and test trend curve exposure parameter data. Progress in these trend curve-data correlation analysis activities at HEDL is described. The exposure parameters of primary interest are those associated with the production of displaced atoms and helium in different pressure vessel steels, particularly, A302B, A533B, and A508.

  5. Photonic devices on planar and curved substrates and methods for

    Office of Scientific and Technical Information (OSTI)

    fabrication thereof (Patent) | SciTech Connect Patent: Photonic devices on planar and curved substrates and methods for fabrication thereof Citation Details In-Document Search Title: Photonic devices on planar and curved substrates and methods for fabrication thereof A versatile and rapid sol-gel technique for the fabrication of high quality one-dimensional photonic bandgap materials. For example, silica/titania multi-layer materials may be fabricated by a sol-gel chemistry route combined

  6. Technology reviews: Shading systems

    SciTech Connect

    Schuman, J.; Rubinstein, F.; Papamichael, K.; Beltran, L.; Lee, E.S.; Selkowitz, S.

    1992-09-01

    We present a representative review of existing, emerging, and future technology options in each of five hardware and systems areas in envelope and lighting technologies: lighting systems, glazing systems, shading systems, daylighting optical systems, and dynamic curtain wall systems. The term technology is used here to describe any design choice for energy efficiency, ranging from individual components to more complex systems to general design strategies. The purpose of this task is to characterize the state of the art in envelope and lighting technologies in order to identify those with promise for advanced integrated systems, with an emphasis on California commercial buildings. For each technology category, the following activities have been attempted to the extent possible: Identify key performance characteristics and criteria for each technology. Determine the performance range of available technologies. Identify the most promising technologies and promising trends in technology advances. Examine market forces and market trends. Develop a continuously growing in-house database to be used throughout the project. A variety of information sources have been used in these technology characterizations, including miscellaneous periodicals, manufacturer catalogs and cut sheets, other research documents, and data from previous computer simulations. We include these different sources in order to best show the type and variety of data available, however publication here does not imply our guarantee of these data. Within each category, several broad classes are identified, and within each class we examine the generic individual technologies that fall into that class.

  7. Alternative procedures for J-R curve determination

    SciTech Connect

    Hiser, A.L.; Loss, F.J.

    1983-07-01

    This investigation evaluates alternative displacement techniques with the single-specimen compliance (SSC) procedure which do not require the commonly used load-line displacement measurements in a compact toughness (CT) specimen to determine the J-R curve. The two techniques studied are a double-clip-gage technique involving both crack-mouth displacement and load-line displacement at the edges of the specimen and a technique which requires only crack-mouth displacement. R-curves developed using these techniques are compared to R-curves developed with the normal load-line based deflections. In addition, results of a round-robin program using the SSC procedure are discussed in terms of validating the double-clip-gage technique. R-curves developed from crack-mouth displacements on the J-integral specimen from ASTM E 813 suggest that the standard ASTM E 399 specimen design can be used for both linear-elastic (e.g., K/sub Ic/) and elastic-plastic (e.g., R-curve toughness assessments.

  8. Innovation in Nuclear Technology for the Least Product Price and Cost

    SciTech Connect

    Duffey, Romney

    2003-09-01

    In energy markets, costs dominate for all new technology introductions (pressure valves, gas turbines, reactors) both now and far into the future. Technology improves, and costs are reduced as markets are penetrated with the trend following a learning/experience curve (MCE) based on classic economic forces. The curve followed is governed by development costs and market targets, and nuclear systems follow such a curve in order to compete with other technologies and projected future cost for alternate energy initiatives. Funding impacts directly on market penetration and on the ''learning rate.'' The CANDU/AECL development path (experience curve) is a chosen balance between evolution and revolution for a competitive advantage.

  9. Possible Draft HAB Comments for

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    : Preliminary issue manager discussion draft; path forward TBD Possible Draft HAB Comments for Remedial Investigation/Feasibility Study and Proposed Plan for the 100-DR-1, 100-DR-2, 100- HR-1, 100-HR-2 and 100-HR-3 Operable Units, (DOE/RL-2010-95 and RL-2011-111, Draft A). * The Board supports the decision to proceed with remediation of the 100-D/H River Corridor areas, and is generally supportive of DOE's alternative analysis for the 100-D/H Areas. * Alternatives 2, 3 and 4 do not meet TPA

  10. GLOBAL ANALYSIS OF KOI-977: SPECTROSCOPY, ASTEROSEISMOLOGY, AND PHASE-CURVE ANALYSIS

    SciTech Connect

    Hirano, Teruyuki; Sato, Bun'ei; Kobayashi, Atsushi; Masuda, Kento; Benomar, Othman; Takeda, Yoichi; Omiya, Masashi; Harakawa, Hiroki

    2015-01-20

    We present a global analysis of KOI-977, one of the planet host candidates detected by Kepler. The Kepler Input Catalog (KIC) reports that KOI-977 is a red giant, for which few close-in planets have been discovered. Our global analysis involves spectroscopic and asteroseismic determinations of stellar parameters (e.g., mass and radius) and radial velocity (RV) measurements. Our analyses reveal that KOI-977 is indeed a red giant, possibly in the red clump, but its estimated radius (≳ 20 R {sub ☉} = 0.093 AU) is much larger than KOI-977.01's orbital distance (∼0.027 AU) estimated from its period (P {sub orb} ∼ 1.35 days) and host star's mass. RV measurements show a small variation, which also contradicts the amplitude of ellipsoidal variations seen in the light curve folded with KOI-977.01's period. Therefore, we conclude that KOI-977.01 is a false positive, meaning that the red giant, for which we measured the radius and RVs, is different from the object that produces the transit-like signal (i.e., an eclipsing binary). On the basis of this assumption, we also perform a light curve analysis including the modeling of transits/eclipses and phase-curve variations, adopting various values for the dilution factor D, which is defined as the flux ratio between the red giant and eclipsing binary. Fitting the whole folded light curve as well as individual transits in the short cadence data simultaneously, we find that the estimated mass and radius ratios of the eclipsing binary are consistent with those of a solar-type star and a late-type star (e.g., an M dwarf) for D ≳ 20.

  11. Automatic generation and analysis of solar cell IV curves

    SciTech Connect

    Kraft, Steven M.; Jones, Jason C.

    2014-06-03

    A photovoltaic system includes multiple strings of solar panels and a device presenting a DC load to the strings of solar panels. Output currents of the strings of solar panels may be sensed and provided to a computer that generates current-voltage (IV) curves of the strings of solar panels. Output voltages of the string of solar panels may be sensed at the string or at the device presenting the DC load. The DC load may be varied. Output currents of the strings of solar panels responsive to the variation of the DC load are sensed to generate IV curves of the strings of solar panels. IV curves may be compared and analyzed to evaluate performance of and detect problems with a string of solar panels.

  12. Electromagnetic field limits set by the V-Curve.

    SciTech Connect

    Warne, Larry Kevin; Jorgenson, Roy Eberhardt; Hudson, Howard Gerald

    2014-07-01

    When emitters of electromagnetic energy are operated in the vicinity of sensitive components, the electric field at the component location must be kept below a certain level in order to prevent the component from being damaged, or in the case of electro-explosive devices, initiating. The V-Curve is a convenient way to set the electric field limit because it requires minimal information about the problem configuration. In this report we will discuss the basis for the V-Curve. We also consider deviations from the original V-Curve resulting from inductive versus capacitive antennas, increases in directivity gain for long antennas, decreases in input impedance when operating in a bounded region, and mismatches dictated by transmission line losses. In addition, we consider mitigating effects resulting from limited antenna sizes.

  13. Observational evidence of dust evolution in galactic extinction curves

    SciTech Connect

    Cecchi-Pestellini, Cesare; Casu, Silvia; Mulas, Giacomo; Zonca, Alberto E-mail: silvia@oa-cagliari.inaf.it E-mail: azonca@oa-cagliari.inaf.it

    2014-04-10

    Although structural and optical properties of hydrogenated amorphous carbons are known to respond to varying physical conditions, most conventional extinction models are basically curve fits with modest predictive power. We compare an evolutionary model of the physical properties of carbonaceous grain mantles with their determination by homogeneously fitting observationally derived Galactic extinction curves with the same physically well-defined dust model. We find that a large sample of observed Galactic extinction curves are compatible with the evolutionary scenario underlying such a model, requiring physical conditions fully consistent with standard density, temperature, radiation field intensity, and average age of diffuse interstellar clouds. Hence, through the study of interstellar extinction we may, in principle, understand the evolutionary history of the diffuse interstellar clouds.

  14. Nonlinear normal modes modal interactions and isolated resonance curves

    SciTech Connect

    Kuether, Robert J.; Renson, L.; Detroux, T.; Grappasonni, C.; Kerschen, G.; Allen, M. S.

    2015-05-21

    The objective of the present study is to explore the connection between the nonlinear normal modes of an undamped and unforced nonlinear system and the isolated resonance curves that may appear in the damped response of the forced system. To this end, an energy balance technique is used to predict the amplitude of the harmonic forcing that is necessary to excite a specific nonlinear normal mode. A cantilever beam with a nonlinear spring at its tip serves to illustrate the developments. Furthermore, the practical implications of isolated resonance curves are also discussed by computing the beam response to sine sweep excitations of increasing amplitudes.

  15. Nonlinear normal modes modal interactions and isolated resonance curves

    DOE PAGES [OSTI]

    Kuether, Robert J.; Renson, L.; Detroux, T.; Grappasonni, C.; Kerschen, G.; Allen, M. S.

    2015-05-21

    The objective of the present study is to explore the connection between the nonlinear normal modes of an undamped and unforced nonlinear system and the isolated resonance curves that may appear in the damped response of the forced system. To this end, an energy balance technique is used to predict the amplitude of the harmonic forcing that is necessary to excite a specific nonlinear normal mode. A cantilever beam with a nonlinear spring at its tip serves to illustrate the developments. Furthermore, the practical implications of isolated resonance curves are also discussed by computing the beam response to sine sweepmore » excitations of increasing amplitudes.« less

  16. Energy Technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Our Vision National User Facilities Research Areas In Focus Global Solutions Energy Technologies Area (ETA) Building Technology & Urban Systems Energy Analysis & Environmental...

  17. Exploration Technologies - Technology Needs Assessment

    SciTech Connect

    Greene, Amanda I.; Thorsteinsson, Hildigunnur; Reinhardt, Tim; Solomon, Samantha; James, Mallory

    2011-06-01

    This assessment is a critical component of ongoing technology roadmapping efforts, and will be used to guide the Geothermal Technology Program's research and development.

  18. High Impact Technology Catalyst: Technology Deployment Strategies...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Catalyst: Technology Deployment Strategies High Impact Technology Catalyst: Technology Deployment Strategies The Energy Department released the High Impact Technology Catalyst: ...

  19. Vehicle Technologies Office: Graduate Automotive Technology Education...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Education & Workforce Development Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) Vehicle Technologies Office: Graduate Automotive Technology ...

  20. NREL: Technology Transfer - Technology Partnership Agreements

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Ombuds. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Agreements for Commercializing Technology CRADAs Work for...

  1. NREL: Technology Transfer - Technologies Available for Licensing

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Ombuds. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Licensing Agreements Technologies Available for Licensing...

  2. The coexistence curve of finite charged nuclear matter

    SciTech Connect

    Elliott, J.B.; Moretto, L.G.; Phair, L.; Wozniak, G.J.; Beaulieu, L.; Breuer, H.; Korteling, R.G.; Kwiatkowski, K.; Lefort, T.; Pienkowski, L.; Ruangma, A.; Viola, V.E.; Yennello, S.J.; Albergo, S.; Bieser, F.; Brady, F.P.; Caccia, Z.; Cebra, D.A.; Chacon, A.D.; Chance, J.L.; Choi, Y.; Costa, S.; Gilkes, M.L.; Hauger, J.A.; Hirsch, A.S.; Hjort, E.L.; Insolia, A.; Justice, M.; Keane, D.; Kintner, J.C.; Lindenstruth, V.; Lisa, M.A.; Matis, H.S.; McMahan, M.; McParland, C.; Muller, W.F.J.; Olson, D.L.; Partlan, M.D.; Porile, N.T.; Potenza, R.; Rai, G.; Rasmussen, J.; Ritter, H.G.; Romanski, J.; Romero, J.L.; Russo, G.V.; Sann, H.; Scharenberg, R.P.; Scott, A.; Shao, Y.; Srivastava, B.K.; Symons, T.J.M.; Tincknell, M.; Tuve, C.; Wang , S.; Warren, P.; Wieman, H.H.; Wienold, T.; Wolf, K.

    2001-01-01

    The multifragmentation data of the ISiS Collaboration and the EOS Collaboration are examined. Fisher's droplet formalism, modified to account for Coulomb energy, is used to determine the critical exponents {tau} and {sigma}, the surface energy coefficient c{sub 0}, the pressure-temperature-density coexistence curve of finite nuclear matter and the location of the critical point.

  3. Tracking stochastic resonance curves using an assisted reference model

    SciTech Connect

    Caldern Ramrez, Mario; Rico Martnez, Ramiro; Parmananda, P.

    2015-06-15

    The optimal noise amplitude for Stochastic Resonance (SR) is located employing an Artificial Neural Network (ANN) reference model with a nonlinear predictive capability. A modified Kalman Filter (KF) was coupled to this reference model in order to compensate for semi-quantitative forecast errors. Three manifestations of stochastic resonance, namely, Periodic Stochastic Resonance (PSR), Aperiodic Stochastic Resonance (ASR), and finally Coherence Resonance (CR) were considered. Using noise amplitude as the control parameter, for the case of PSR and ASR, the cross-correlation curve between the sub-threshold input signal and the system response is tracked. However, using the same parameter the Normalized Variance curve is tracked for the case of CR. The goal of the present work is to track these curves and converge to their respective extremal points. The ANN reference model strategy captures and subsequently predicts the nonlinear features of the model system while the KF compensates for the perturbations inherent to the superimposed noise. This technique, implemented in the FitzHugh-Nagumo model, enabled us to track the resonance curves and eventually locate their optimal (extremal) values. This would yield the optimal value of noise for the three manifestations of the SR phenomena.

  4. Symmetries for Galileons and DBI scalars on curved space

    DOE PAGES [OSTI]

    Goon, Garrett; Hinterbichler, Kurt; Trodden, Mark

    2011-07-08

    We introduced a general class of four-dimensional effective field theories which include curved space Galileons and DBI theories possessing nonlinear shift-like symmetries. These effective theories arise from purely gravitational actions and may prove relevant to the cosmology of both the early and late universe.

  5. Quantifying and Reducing Curve-Fitting Uncertainty in Isc: Preprint

    SciTech Connect

    Campanelli, Mark; Duck, Benjamin; Emery, Keith

    2015-09-28

    Current-voltage (I-V) curve measurements of photovoltaic (PV) devices are used to determine performance parameters and to establish traceable calibration chains. Measurement standards specify localized curve fitting methods, e.g., straight-line interpolation/extrapolation of the I-V curve points near short-circuit current, Isc. By considering such fits as statistical linear regressions, uncertainties in the performance parameters are readily quantified. However, the legitimacy of such a computed uncertainty requires that the model be a valid (local) representation of the I-V curve and that the noise be sufficiently well characterized. Using more data points often has the advantage of lowering the uncertainty. However, more data points can make the uncertainty in the fit arbitrarily small, and this fit uncertainty misses the dominant residual uncertainty due to so-called model discrepancy. Using objective Bayesian linear regression for straight-line fits for Isc, we investigate an evidence-based method to automatically choose data windows of I-V points with reduced model discrepancy. We also investigate noise effects. Uncertainties, aligned with the Guide to the Expression of Uncertainty in Measurement (GUM), are quantified throughout.

  6. UNSUPERVISED TRANSIENT LIGHT CURVE ANALYSIS VIA HIERARCHICAL BAYESIAN INFERENCE

    SciTech Connect

    Sanders, N. E.; Soderberg, A. M.; Betancourt, M.

    2015-02-10

    Historically, light curve studies of supernovae (SNe) and other transient classes have focused on individual objects with copious and high signal-to-noise observations. In the nascent era of wide field transient searches, objects with detailed observations are decreasing as a fraction of the overall known SN population, and this strategy sacrifices the majority of the information contained in the data about the underlying population of transients. A population level modeling approach, simultaneously fitting all available observations of objects in a transient sub-class of interest, fully mines the data to infer the properties of the population and avoids certain systematic biases. We present a novel hierarchical Bayesian statistical model for population level modeling of transient light curves, and discuss its implementation using an efficient Hamiltonian Monte Carlo technique. As a test case, we apply this model to the Type IIP SN sample from the Pan-STARRS1 Medium Deep Survey, consisting of 18,837 photometric observations of 76 SNe, corresponding to a joint posterior distribution with 9176 parameters under our model. Our hierarchical model fits provide improved constraints on light curve parameters relevant to the physical properties of their progenitor stars relative to modeling individual light curves alone. Moreover, we directly evaluate the probability for occurrence rates of unseen light curve characteristics from the model hyperparameters, addressing observational biases in survey methodology. We view this modeling framework as an unsupervised machine learning technique with the ability to maximize scientific returns from data to be collected by future wide field transient searches like LSST.

  7. Vehicle Technologies Office - Materials Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Technologies Office Materials Technologies Ed Owens Jerry Gibbs Will Joost eere.energy.gov 2 | Vehicle Technologies Program Materials Technologies Materials Technologies $36.9 M Lightweight Materials $28.0 M Values are FY14 enacted Propulsion Materials $8.9 M Properties and Manufacturing Multi-Material Enabling Modeling & Computational Mat. Sci. Engine Materials, Cast Al & Fe High Temp Alloys Exhaust Sys. Materials, Low T Catalysts Lightweight Propulsion FY13 Enacted $27.5 M

  8. Knowledge%20Investment%20Curve%20Image.png | OSTI, US Dept of Energy Office

    Office of Scientific and Technical Information (OSTI)

    of Scientific and Technical Information Knowledge%20Investment%20Curve%20Image.png

  9. Curve fitting methods for solar radiation data modeling

    SciTech Connect

    Karim, Samsul Ariffin Abdul E-mail: balbir@petronas.com.my; Singh, Balbir Singh Mahinder E-mail: balbir@petronas.com.my

    2014-10-24

    This paper studies the use of several type of curve fitting method to smooth the global solar radiation data. After the data have been fitted by using curve fitting method, the mathematical model of global solar radiation will be developed. The error measurement was calculated by using goodness-fit statistics such as root mean square error (RMSE) and the value of R{sup 2}. The best fitting methods will be used as a starting point for the construction of mathematical modeling of solar radiation received in Universiti Teknologi PETRONAS (UTP) Malaysia. Numerical results indicated that Gaussian fitting and sine fitting (both with two terms) gives better results as compare with the other fitting methods.

  10. Sagittal focusing of synchrotron x radiation with curved crystals

    SciTech Connect

    Sparks, C.J. Jr.; Ice, G.E.; Wong, J.; Batterman, B.W.

    1981-01-01

    We describe the sagittal focusing of x rays with singly bent crystals that accept the meridian plane divergence from a similar but flat crystal to form a pair in a nondispersive two-crystal Bragg monochromator. Curved crystals can intercept from 5 to 20 times the sagittal divergence of curved mirrors at x-ray energies above 10 keV. Anticlastic (transverse) bending of the crystal is made negligible in the meridian plane with reinforcing ribs cut parallel to the plane of scattering. Results show that at energies of 10, 20, and 30 keV the bent crystal performs efficiently and images the source size at the Cornell High Energy Synchrotron Source.

  11. Building Technologies Program Website | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    URI: cleanenergysolutions.orgcontentbuilding-technologies-program-website Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible...

  12. NREL: Technology Transfer - News Release Archives

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    research it made possible. December 10, 2014 NREL to Advance Technologies for Microgrid Projects The Energy Department's National Renewable Energy Laboratory (NREL) is...

  13. The Present, Mid-Term, and Long-Term Supply Curves for Tellurium; and Updates in the Results from NREL's CdTe PV Module Manufacturing Cost Model (Presentation)

    SciTech Connect

    Woodhouse, M.; Goodrich, A.; Redlinger, M.; Lokanc, M.; Eggert, R.

    2013-09-01

    For those PV technologies that rely upon Te, In, and Ga, first-order observations and calculations hint that there may be resource constraints that could inhibit their successful deployment at a SunShot level. These are only first-order approximations, however, and the possibility for an expansion in global Te, In, and Ga supplies needs to be considered in the event that there are upward revisions in their demand and prices.In this study, we examine the current, mid-term, and long-term prospects of Tellurium (Te) for use in PV. We find that the current global supply base of Te would support <10 GW of annual traditional CdTe PV manufacturing production. But as for the possibility that the supply base for Te might be expanded, after compiling several preliminary cumulative availability curves we find that there may be significant upside potential in the supply base for this element - principally vis a vis increasing demand and higher prices. Primarily by reducing the Tellurium intensity in manufacturing and by increasing the recovery efficiency of Te in Cu refining processes, we calculate that it may prove affordable to PV manufacturers to expand the supply base for Te such that 100 GW, or greater, of annual CdTe PV production is possible in the 2030 - 2050 timeframe.

  14. Method of non-destructively inspecting a curved wall portion

    DOEpatents

    Fong, James T.

    1996-01-01

    A method of non-destructively inspecting a curved wall portion of a large and thick walled vessel for a defect by computed tomography is provided. A collimated source of radiation is placed adjacent one side of the wall portion and an array of detectors for the radiation is placed on the other side adjacent the source. The radiation from the source passing through the wall portion is then detected with the detectors over a limited angle, dependent upon the curvature of the wall of the vessel, to obtain a dataset. The source and array are then coordinately moved relative to the wall portion in steps and a further dataset is obtained at each step. The plurality of datasets obtained over the limited angle is then processed to produce a tomogram of the wall portion to determine the presence of a defect therein. In a preferred embodiment, the curved wall portion has a center of curvature so that the source and the array are positioned at each step along a respective arc curved about the center. If desired, the detector array and source can be reoriented relative to a new wall portion and an inspection of the new wall portion can be easily obtained. Further, the source and detector array can be indexed in a direction perpendicular to a plane including the limited angle in a plurality of steps so that by repeating the detecting and moving steps at each index step, a three dimensional image can be created of the wall portion.

  15. Available Technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    application. Search Our Technologies submit Advanced Materials Advanced Materials Biotechnology Biotechnology Chemistry Chemistry Energy Energy High Performance Computing:...

  16. Technology Opportunities

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Intellectual Property » Technology Opportunities Technology Opportunities We deliver innovation through an integrated portfolio of R&D work across our key national security sponsoring agencies, enhanced by the ideas developed through our strategic internal investments. Contact Business Development Team Richard P. Feynman Center for Innovation (505) 665-9090 Email Periodically, the Laboratory notifies the public of technologies and capabilities that may be of interest. These technologies may

  17. Licensing Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Licensing Technology Licensing Technology The primary function of Los Alamos Licensing Program is to move Los Alamos technology to the marketplace for the benefit of the U.S. economy. Our intellectual property may be licensed for commercial use, research applications, and U.S. government use. Contact thumbnail of Marcus Lucero Head of Licensing Marcus Lucero Richard P. Feynman Center for Innovation (505) 665-6569 Email Although Los Alamos's primary mission is national security, our technologies

  18. Technology Assessment

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - FOR OFFICIAL USE ONLY - DRAFT 1 Advanced Composites Materials and their Manufacture 1 Technology Assessment 2 Contents 3 1. Introduction to the Technology/System ................................................................................................ 2 4 2. Technology Potential and Assessment .................................................................................................. 4 5 2.1 The Potential for Advanced Composites for Clean Energy Application Areas

  19. A Low-Power VHDL Design for an Elliptic Curve Digital Signature Chip

    SciTech Connect

    SCHROEPPEL, RICHARD C.; BEAVER, CHERYL L.; DRAELOS, TIMOTHY J.; GONZALES, RITA A.; MILLER, RUSSELL D.

    2002-09-01

    The authors present a VHDL design that incorporates optimizations intended to provide digital signature generation with as little power, space, and time as possible. These three primary objectives of power, size, and speed must be balanced along with other important goals, including flexibility of the hardware and ease of use. The highest-level function doffered by their hardware design is Elliptic Curve Optimal El Gamal digital signature generation. The parameters are defined over the finite field GF(2{sup 178}), which gives security that is roughly equivalent to that provided by 1500-bit RSA signatures. The optimizations include using the point-halving algorithm for elliptic curves, field towers to speed up the finite field arithmetic in general, and further enhancements of basic finite field arithmetic operations. The result is a synthesized VHDL digital signature design (using a CMOS 0.5{micro}m, 5V, 25 C library) of 191,000 gates that generates a signature in 4.4 ms at 20 MHz.

  20. Taking technology to market

    SciTech Connect

    Ford, D.; Ryan, C.

    1981-03-01

    For many years, the concept of the product life cycle has helped managers maximize their return on product sales. But according to the authors of this article, using a technology solely in product sales is no longer enough. Today, companies face high R and D costs, competitive pressures from low-cost producers, capacity limitations, antitrust laws, financial difficulties, and foreign trade barriers. This means that they must improve the rate of return on their technology investments by marketing their technology as completely as possible during all phases of its life cycle. The technology life cycle - derived from the product life cycle - pinpoints the changing decisions companies face in selling their know-how. The authors also discuss both the competitive dangers of transferring technology to low-cost foreign producers and the growing role of intermediaries in technology sales. They stress the importance of having a highly specialized staff to plan a company's technology marketing, a responsibility that should be assigned neither to the part-time attention of top management nor simply to marketers or strategic planners.

  1. Technology '90

    SciTech Connect

    Not Available

    1991-01-01

    The US Department of Energy (DOE) laboratories have a long history of excellence in performing research and development in a number of areas, including the basic sciences, applied-energy technology, and weapons-related technology. Although technology transfer has always been an element of DOE and laboratory activities, it has received increasing emphasis in recent years as US industrial competitiveness has eroded and efforts have increased to better utilize the research and development resources the laboratories provide. This document, Technology '90, is the latest in a series that is intended to communicate some of the many opportunities available for US industry and universities to work with the DOE and its laboratories in the vital activity of improving technology transfer to meet national needs. Technology '90 is divided into three sections: Overview, Technologies, and Laboratories. The Overview section describes the activities and accomplishments of the DOE research and development program offices. The Technologies section provides descriptions of new technologies developed at the DOE laboratories. The Laboratories section presents information on the missions, programs, and facilities of each laboratory, along with a name and telephone number of a technology transfer contact for additional information. Separate papers were prepared for appropriate sections of this report.

  2. Transit light curves with finite integration time: Fisher information analysis

    SciTech Connect

    Price, Ellen M.; Rogers, Leslie A.

    2014-10-10

    Kepler has revolutionized the study of transiting planets with its unprecedented photometric precision on more than 150,000 target stars. Most of the transiting planet candidates detected by Kepler have been observed as long-cadence targets with 30 minute integration times, and the upcoming Transiting Exoplanet Survey Satellite will record full frame images with a similar integration time. Integrations of 30 minutes affect the transit shape, particularly for small planets and in cases of low signal to noise. Using the Fisher information matrix technique, we derive analytic approximations for the variances and covariances on the transit parameters obtained from fitting light curve photometry collected with a finite integration time. We find that binning the light curve can significantly increase the uncertainties and covariances on the inferred parameters when comparing scenarios with constant total signal to noise (constant total integration time in the absence of read noise). Uncertainties on the transit ingress/egress time increase by a factor of 34 for Earth-size planets and 3.4 for Jupiter-size planets around Sun-like stars for integration times of 30 minutes compared to instantaneously sampled light curves. Similarly, uncertainties on the mid-transit time for Earth and Jupiter-size planets increase by factors of 3.9 and 1.4. Uncertainties on the transit depth are largely unaffected by finite integration times. While correlations among the transit depth, ingress duration, and transit duration all increase in magnitude with longer integration times, the mid-transit time remains uncorrelated with the other parameters. We provide code in Python and Mathematica for predicting the variances and covariances at www.its.caltech.edu/∼eprice.

  3. Residential equipment part load curves for use in DOE-2

    SciTech Connect

    Henderson, Hugh; Huang, Y.J.; Parker, D.

    1999-02-01

    DOE-2 (DOE2 90) includes several correlation curves that predict the energy use of systems underpart load conditions. DOE-2 simulates systems on an hour-by-hour basis, so the correlations are intended to predict part load energy use (and efficiency) as a function of the part load ratio (PLR) for each hour, where PLR = Hourly Load/Available Capacity. Generally residential and small commercial HVAC equipment meets the load at off-design conditions by cycling on and off. Therefore, the part load correlations must predict the degradation due to this on and off operation over an hourly interval.

  4. Calculation of Shock Hugoniot Curves of Precompressed Liquid Deuterium

    SciTech Connect

    Militzer, B

    2002-11-18

    Path integral Monte Carlo simulations have been used to study deuterium at high pressure and temperature. The equation of state has been derived in the temperature and density region of 10,000 {le} T {le} 1,000,000 and 0.6 {le} {rho} {le} 2.5 g cm{sup -3}. A series of shock Hugoniot curves is computed for different initial compressions in order to compare with current and future shock wave experiments using liquid deuterium samples precompressed in diamond anvil cells.

  5. SN 2006bt: A PERPLEXING, TROUBLESOME, AND POSSIBLY MISLEADING...

    Office of Scientific and Technical Information (OSTI)

    We present optical light curves and spectra of SN 2006bt which demonstrate the peculiar nature of this object. SN 2006bt has broad, slowly declining light curves indicative of a ...

  6. Energy and Technology Review

    SciTech Connect

    Bookless, W.A.; Quirk, W.J.

    1994-06-01

    This report discusses: The Clementine satellite, the first US satellite to the Moon in more than two decades, sent back more than 1.5 million images of the lunar surface using cameras designed and calibrated by LLNL. An LLNL-developed laser ranger provided information that will be used to construct a relief map of the Moon`s surface; and Uncertainty and the Federal Role in Science and Technology, Ralph E. Gomory was a recent participate in the Director`s Distinguished Lecturer Series at LLNL. In his lecture, he addressed some of the tensions, conflicts, and possible goals related to federal support for science and technology.

  7. NREL: Technology Transfer - Agreements for Commercializing Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    303-384-7353. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Agreements for Commercializing Technology CRADAs Work for...

  8. Vehicle Technologies Office: 2015 Electric Drive Technologies...

    Office of Environmental Management (EM)

    Electric Drive Technologies Annual R&D Progress Report Vehicle Technologies Office: 2015 Electric Drive Technologies Annual R&D Progress Report The Electric Drive Technologies ...

  9. Huazhong Science Technology University Yongtai Science Technology...

    OpenEI (Open Energy Information) [EERE & EIA]

    Huazhong Science Technology University Yongtai Science Technology Co Ltd Jump to: navigation, search Name: Huazhong Science & Technology University Yongtai Science & Technology Co...

  10. Technology Transfer

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    technology transfer Technology Transfer Since 1974, the Federal Laboratory Consortium (FLC) Award for Excellence in Technology Transfer has recognized scientists and engineers at federal government and research centers for their "uncommon creativity and initiative in conveying innovations from their facilities to industry and local government." Scientists and engineers from more than 650 federal government laboratories and research centers compete for the 30 awards presented each year.

  11. Technology Partnering

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Transfer and Related Technology Partnering Activities at the National Laboratories and Other Facilities Fiscal Years 2009-2013 Report to Congress May 2015 United States Department of Energy Washington, DC 20585 Message from the Secretary The Report on Technology Transfer and Related Partnering Activities at the National Laboratories and Other Facilities for Fiscal Year 2009-2013 is prepared in accordance with the requirements of the Technology Transfer and Commercialization Act of 2000: It is

  12. Technology Opportunities

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    by the U.S. Department of Energy and Office of Science - ... feedstock-to-fuel conversion, coproduct production, ... Patents Software Tools Technology Opportunities Penta Charts

  13. Technology Validation

    Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  14. CSP technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    technology - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy ...

  15. TECHNOLOGY FORUM

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    TECHNOLOGY FORUM The 2014 SunShot Grand Challenge Summit and Peer Review is hosting a Technology Forum showcasing innovative and cutting-edge technologies that are helping to drive down the cost of solar energy. The Forum features a wide range of solar industry exhibitors showcasing software and hardware products and solutions, as well as nearly 300 SunShot awardees displaying their work and answering questions about their projects. TECHNOLOGY FORUM HOURS * May 19 from 4:00-7:00 PM * May 20

  16. Possible natural cold fusion in the atmosphere

    SciTech Connect

    Hawkins, N. )

    1991-07-01

    Nongeological natural cold fusion effects in meteoroelectrical disequilibria are possible, and various laboratory simulations of these effects are being studied.

  17. Incorporation of learning curve costs in acquisition strategy optimization

    SciTech Connect

    Loerch, A.

    1994-12-31

    Each year, the United States Army procures billions of dollars worth of weapons and equipment so that it can accomplish its worldwide mission of deterrence. The process of deciding what to buy, in what quantities, and when to best respond to the threat posed by potential adversaries, is extremely complex, requiring extensive analysis. Two techniques commonly used in this analysis are mathematical programming and cost estimation. Although they are related through constraints on available procurement funds, the use of nonlinear cost learning curves, which more accurately represent system costs as a function of quantity produced, have not been incorporated into mathematical programming formulations that compute the quantities of items to be procured. As a result, the solutions obtained could be either suboptimal, or even infeasible with respect to budgetary limitations. We present a mixed integer programming formulation that uses a piecewise linear approximation of the learning curve costs for a more accurate portrayal of budgetary constraints. In addition, implementation issues are discussed, and performance results are given.

  18. Broadband turbulent spectra in gamma-ray burst light curves

    SciTech Connect

    Van Putten, Maurice H. P. M.; Guidorzi, Cristiano; Frontera, Filippo

    2014-05-10

    Broadband power density spectra offer a window to understanding turbulent behavior in the emission mechanism and, at the highest frequencies, in the putative inner engines powering long gamma-ray bursts (GRBs). We describe a chirp search method alongside Fourier analysis for signal detection in the Poisson noise-dominated, 2 kHz sampled, BeppoSAX light curves. An efficient numerical implementation is described in O(Nnlog n) operations, where N is the number of chirp templates and n is the length of the light-curve time series, suited for embarrassingly parallel processing. For the detection of individual chirps over a 1 s duration, the method is one order of magnitude more sensitive in signal-to-noise ratio than Fourier analysis. The Fourier-chirp spectra of GRB 010408 and GRB 970816 show a continuation of the spectral slope with up to 1 kHz of turbulence identified in low-frequency Fourier analysis. The same continuation is observed in an average spectrum of 42 bright, long GRBs. An outlook on a similar analysis of upcoming gravitational wave data is included.

  19. Thermally activated technologies: Technology Roadmap

    SciTech Connect

    None, None

    2003-05-01

    The purpose of this Technology Roadmap is to outline a set of actions for government and industry to develop thermally activated technologies for converting America’s wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. Fuel flexibility is important. The actions also cover thermally activated technologies that use fossil fuels, biomass, and ultimately hydrogen, along with waste heat.

  20. NREL: Technology Deployment - Technology Acceleration

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Acceleration NREL offers technology-specific assistance to federal and private industry to help address market barriers to sustainable energy technologies. Learn more about NREL's work in the following areas: Biopower and Waste-to-Energy Biopower and Waste-to-Energy Buildings Buildings Fuels, Vehicles, & Transportation Fuels, Vehicles, and Transportation Microgrid Design Microgrid Design Solar Solar Wind Wind Contact Us For more information on NREL's market transformation work,

  1. Technology Assessment

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Roll to Roll (R2R) Processing 1 Technology Assessment 2 3 Contents 4 1. Introduction to the Technology/System ............................................................................................... 2 5 1.1. Introduction to R2R Processing..................................................................................................... 2 6 1.2. R2R Processing Mechanisms ......................................................................................................... 3 7 2.

  2. Information technology resources assessment

    SciTech Connect

    Stevens, D.F.

    1992-01-01

    This year`s Information Technology Resources Assessment (ITRA) is something of a departure from traditional practice. Past assessments have concentrated on developments in fundamental technology, particularly with respect to hardware. They form an impressive chronicle of decreasing cycle times, increasing densities, decreasing costs (or, equivalently, increasing capacity and capability per dollar spent), and new system architectures, with a leavening of operating systems and languages. Past assessments have aimed -- and succeeded -- at putting information technology squarely in the spotlight; by contrast, in the first part of this assessment, we would like to move it to the background, and encourage the reader to reflect less on the continuing technological miracles of miniaturization in space and time and more on the second- and third-order implications of some possible workplace applications of these miracles. This Information Technology Resources Assessment is intended to provide a sense of technological direction for planners in projecting the hardware, software, and human resources necessary to support the diverse IT requirements of the various components of the DOE community. It is also intended to provide a sense of our new understanding of the place of IT in our organizations.

  3. Information technology resources assessment

    SciTech Connect

    Stevens, D.F.

    1992-01-01

    This year's Information Technology Resources Assessment (ITRA) is something of a departure from traditional practice. Past assessments have concentrated on developments in fundamental technology, particularly with respect to hardware. They form an impressive chronicle of decreasing cycle times, increasing densities, decreasing costs (or, equivalently, increasing capacity and capability per dollar spent), and new system architectures, with a leavening of operating systems and languages. Past assessments have aimed -- and succeeded -- at putting information technology squarely in the spotlight; by contrast, in the first part of this assessment, we would like to move it to the background, and encourage the reader to reflect less on the continuing technological miracles of miniaturization in space and time and more on the second- and third-order implications of some possible workplace applications of these miracles. This Information Technology Resources Assessment is intended to provide a sense of technological direction for planners in projecting the hardware, software, and human resources necessary to support the diverse IT requirements of the various components of the DOE community. It is also intended to provide a sense of our new understanding of the place of IT in our organizations.

  4. Information technology resources assessment

    SciTech Connect

    Loken, S.C.

    1993-01-01

    The emphasis in Information Technology (IT) development has shifted from technology management to information management, and the tools of information management are increasingly at the disposal of end-users, people who deal with information. Moreover, the interactive capabilities of technologies such as hypertext, scientific visualization, virtual reality, video conferencing, and even database management systems have placed in the hands of users a significant amount of discretion over how these resources will be used. The emergence of high-performance networks, as well as network operating systems, improved interoperability, and platform independence of applications will eliminate technical barriers to the use of data, increase the power and range of resources that can be used cooperatively, and open up a wealth of possibilities for new applications. The very scope of these prospects for the immediate future is a problem for the IT planner or administrator. Technology procurement and implementation, integration of new technologies into the existing infrastructure, cost recovery and usage of networks and networked resources, training issues, and security concerns such as data protection and access to experiments are just some of the issues that need to be considered in the emerging IT environment. As managers we must use technology to improve competitiveness. When procuring new systems, we must take advantage of scalable resources. New resources such as distributed file systems can improve access to and efficiency of existing operating systems. In addition, we must assess opportunities to improve information worker productivity and information management through tedmologies such as distributed computational visualization and teleseminar applications.

  5. Microsoft Word - DVZ Technologies Public Information Exchange Summary.doc

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    DVZ Technologies Public Information Exchange June 7, 2011 Location: Shilo Inn, Richland, WA Opening Session - Flip Chart Notes Comments  Excavation technologies are good to approximately 40 ft. and make a big footprint. Develop some cost curves to get general understanding of cost/benefit.  Excavation can be cheap and quick.  Lots of deep vadose zone problems are black and white at 60 to 120 ft, but not at 250 ft.  Good technology screening process important. Need to categorize and

  6. Technology Commercialization Showcase 2008 Vehicle Technologies Program

    SciTech Connect

    Davis, Patrick B.

    2009-06-19

    Presentation illustrating various technology commercialization opportunities and unexploited investment gaps for the Vehicle Technologies Program.

  7. Curved track segment finding using Tiny Triplet Finder (TTF)

    SciTech Connect

    Wu, Jin-Yuan; Wang, M.; Gottschalk, E.; Shi, Z.; /Fermilab

    2006-11-01

    We describe the applications of a track segment recognition scheme called the Tiny Triplet Finder (TTF) that involves the grouping of three hits satisfying a constraint forming of a track segment. The TTF was originally developed solving straight track segment finding problem, however, it is also suitable in many curved track segment finding problems. The examples discussed in this document are among popular detector layouts in high-energy/nuclear physics experiments. Although it is not practical to find a universal recipe for arbitrary detector layouts, the method of the TTF application is illustrated via the discussion of the examples. Generally speaking, whenever the data item to be found in a pattern recognition problem contains two free parameters, and if the constraint connecting the measurements and the two free parameters has an approximate shift invariant property, the Tiny Triplet Finder can be used.

  8. Cyclic corrosion crack resistance curves of certain vessel steels

    SciTech Connect

    Panasyuk, V.V.; Fedorova, V.A.; Pusyak, S.A.; Ratych, L.V.; Timofeev, L.V.; Zuezdin, Y.I.

    1985-11-01

    Results are presented of investigations of 15Kh2MFA and 15Kh2NMFA steels. In the first stage of the investigations, the cyclic corrosion crack resistance characteristics were determined with limiting values of the various factors: loading frequency, loading cycle stress ratio, temperature and length of service. An intense flow of ionizing radiation may markedly change the mechanical properties in 30-40 years; this acts on the reactor vessel. The experimental data for strength categories KP-45 and KP-90 of both vessel steels lies in a quite narrow band of spread, which provides a basis for representing it by a single generalized curve, presented here. The result of cyclic corrosion crack resistance tests of disk specimens of 15Kh2MFA and 15Kh2NMFA vessel steels in boric acid controlled reactor water solution in distilled water with the addition of KOH to pH 8 was established.

  9. Reliable estimation of biochemical parameters from C3 leaf photosynthesis-intercellular carbon dioxide response curves

    SciTech Connect

    Wullschleger, Stan D; Gu, Lianhong; Pallardy, Stephen G.; Tu, Kevin; Law, Beverly E.

    2010-01-01

    The Farquhar-von Caemmerer-Berry (FvCB) model of photosynthesis is a change-point model and structurally overparameterized for interpreting the response of leaf net assimilation (A) to intercellular CO{sub 2} concentration (Ci). The use of conventional fitting methods may lead not only to incorrect parameters but also several previously unrecognized consequences. For example, the relationships between key parameters may be fixed computationally and certain fits may be produced in which the estimated parameters result in contradictory identification of the limitation states of the data. Here we describe a new approach that is better suited to the FvCB model characteristics. It consists of four main steps: (1) enumeration of all possible distributions of limitation states; (2) fitting the FvCB model to each limitation state distribution by minimizing a distribution-wise cost function that has desirable properties for parameter estimation; (3) identification and correction of inadmissible fits; and (4) selection of the best fit from all possible limitation state distributions. The new approach implemented theoretical parameter resolvability with numerical procedures that maximally use the information content of the data. It was tested with model simulations, sampled A/Ci curves, and chlorophyll fluorescence measurements of different tree species. The new approach is accessible through the automated website leafweb.ornl.gov.

  10. ARPA-E | Changing What's Possible

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    logo Changing What's Possible Apply for Funding ARPA-E Announces New Funding Opportunities ARPA-E has announced funding opportunities for the Integration and Optimization of Novel ...

  11. Section 3161 Announcement: Possible Workforce Restructuring at...

    National Nuclear Security Administration (NNSA)

    Section 3161 Announcement: Possible Workforce Restructuring at the Y-12 National Security Complex and Its Satellite Facilities Announced October 10, 2007 Microsoft Office document ...

  12. NREL: Energy Systems Integration - Redefining What's Possible...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Redefining What's Possible for Renewable Energy: Grid Integration NREL is spearheading engineering innovations that will help optimize the entire energy system, and the lab's ...

  13. Tag: technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Tags

    technology<...

  14. Technology Validation

    Energy.gov [DOE]

    To reduce solar technology risks, DOE and its partners evaluate the performance and reliability of novel photovoltaic (PV) hardware and systems through laboratory and field testing. The focus of...

  15. On the late-time behavior of tracer test breakthrough curves

    SciTech Connect

    HAGGERTY,ROY; MCKENNA,SEAN A.; MEIGS,LUCY C.

    2000-06-12

    The authors investigated the late-time (asymptotic) behavior of tracer test breakthrough curves (BTCs) with rate-limited mass transfer (e.g., in dual or multi-porosity systems) and found that the late-time concentration, c, is given by the simple expression: c = t{sub ad} (c{sub 0}g {minus} m{sub 0}{partial_derivative}g/{partial_derivative}t), for t >> t{sub ad} and t{sub a} >> t{sub ad} where t{sub ad} is the advection time, c{sub 0} is the initial concentration in the medium, m{sub 0} is the 0th moment of the injection pulse; and t{sub a} is the mean residence time in the immobile domain (i.e., the characteristic mass transfer time). The function g is proportional to the residence time distribution in the immobile domain, the authors tabulate g for many geometries, including several distributed (multirate) models of mass transfer. Using this expression they examine the behavior of late-time concentration for a number of mass transfer models. One key results is that if rate-limited mass transfer causes the BTC to behave as a power-law at late-time (i.e., c {approximately} t{sup {minus}k}), then the underlying density function of rate coefficients must also be a power-law with the form a{sup k{minus}}, as a {r_arrow}0. This is true for both density functions of first-order and diffusion rate coefficients. BTCs with k < 3 persisting to the end of the experiment indicate a mean residence time longer than the experiment and possibly infinite, and also suggest an effective rate coefficient that is either undefined or changes as a function of observation time. They apply their analysis to breakthrough curves from Single-Well Injection-Withdrawal tests at the Waste Isolation Pilot Plant, New Mexico.

  16. Curve fitting toxicity test data: Which comes first, the dose response or the model?

    SciTech Connect

    Gully, J.; Baird, R.; Bottomley, J.

    1995-12-31

    The probit model frequently does not fit the concentration-response curve of NPDES toxicity test data and non-parametric models must be used instead. The non-parametric models, trimmed Spearman-Karber, IC{sub p}, and linear interpolation, all require a monotonic concentration-response. Any deviation from a monotonic response is smoothed to obtain the desired concentration-response characteristics. Inaccurate point estimates may result from such procedures and can contribute to imprecision in replicate tests. The following study analyzed reference toxicant and effluent data from giant kelp (Macrocystis pyrifera), purple sea urchin (Strongylocentrotus purpuratus), red abalone (Haliotis rufescens), and fathead minnow (Pimephales promelas) bioassays using commercially available curve fitting software. The purpose was to search for alternative parametric models which would reduce the use of non-parametric models for point estimate analysis of toxicity data. Two non-linear models, power and logistic dose-response, were selected as possible alternatives to the probit model based upon their toxicological plausibility and ability to model most data sets examined. Unlike non-parametric procedures, these and all parametric models can be statistically evaluated for fit and significance. The use of the power or logistic dose response models increased the percentage of parametric model fits for each protocol and toxicant combination examined. The precision of the selected non-linear models was also compared with the EPA recommended point estimation models at several effect.levels. In general, precision of the alternative models was equal to or better than the traditional methods. Finally, use of the alternative models usually produced more plausible point estimates in data sets where the effects of smoothing and non-parametric modeling made the point estimate results suspect.

  17. Lab Breakthrough: Nanomaterials Discoveries Lead to Possible...

    Energy Saver

    ... Are there any particular technologies or discoveries that act as a basis for your work? ER: Our principles are inspired by biology. For example, we use a high-efficiency ...

  18. Night vision device technology development

    SciTech Connect

    Funsten, H.; Nordholt, J.; Suszcynsky, D.

    1996-09-01

    This is the final report of a one-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This project sought to develop microchannel plate (MCP) technologies for enhancement of night vision device (NVD) capabilities. First, segmented microchannel plates with independent gain control to minimize loss of low level light images in the presence of a bright light source (e.g., battlefield lasers, flares, and headlights) need to be developed. This enables, for example, enhanced vision capabilities during night operations in, for example, a city environment and continuous capability of aviators to see the horizon, nearground obstructions, and ground targets. Furthermore, curved microchannel plate technology to increase the field of view of NVDs while minimizing optical aberrations needs to be developed and applied. This development would significantly enhance peripheral vision capabilities of aviators and result in easier adaptation of the human eye to NVDs.

  19. Technology Roadmap Analysis 2013: Assessing Automotive Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Roadmap Analysis 2013: Assessing Automotive Technology R&D Relevant to DOE Power Electronics Cost Targets Technology Roadmap Analysis 2013: Assessing Automotive Technology R&D ...

  20. Wind Power Curve Modeling in Simple and Complex Terrain

    SciTech Connect

    Bulaevskaya, V.; Wharton, S.; Irons, Z.; Qualley, G.

    2015-02-09

    Our previous work on wind power curve modeling using statistical models focused on a location with a moderately complex terrain in the Altamont Pass region in northern California (CA). The work described here is the follow-up to that work, but at a location with a simple terrain in northern Oklahoma (OK). The goal of the present analysis was to determine the gain in predictive ability afforded by adding information beyond the hub-height wind speed, such as wind speeds at other heights, as well as other atmospheric variables, to the power prediction model at this new location and compare the results to those obtained at the CA site in the previous study. While we reach some of the same conclusions at both sites, many results reported for the CA site do not hold at the OK site. In particular, using the entire vertical profile of wind speeds improves the accuracy of wind power prediction relative to using the hub-height wind speed alone at both sites. However, in contrast to the CA site, the rotor equivalent wind speed (REWS) performs almost as well as the entire profile at the OK site. Another difference is that at the CA site, adding wind veer as a predictor significantly improved the power prediction accuracy. The same was true for that site when air density was added to the model separately instead of using the standard air density adjustment. At the OK site, these additional variables result in no significant benefit for the prediction accuracy.

  1. Implications of the Early X-Ray Afterglow Light Curves of Swift GRBs

    SciTech Connect

    Granot, Jonathan; Konigl, Arieh; Piran, Tsvi; /Hebrew U.

    2006-01-17

    According to current models, gamma-ray bursts (GRBs) are produced when the energy carried by a relativistic outflow is dissipated and converted into radiation. The efficiency of this process, {epsilon}{sub {gamma}}, is one of the critical factors in any GRB model. The X-ray afterglow light curves of Swift GRBs show an early stage of flattish decay. This has been interpreted as reflecting energy injection. When combined with previous estimates, which have concluded that the kinetic energy of the late ({approx}> 10 hr) afterglow is comparable to the energy emitted in {gamma}-rays, this interpretation implies very high values of {epsilon}{sub {gamma}}, corresponding to {approx}> 90% of the initial energy being converted into {gamma}-rays. Such a high efficiency is hard to reconcile with most models, including in particular the popular internal-shocks model. We re-analyze the derivation of the kinetic energy from the afterglow X-ray flux and re-examine the resulting estimates of the efficiency. We confirm that, if the flattish decay arises from energy injection and the pre-Swift broad-band estimates of the kinetic energy are correct, then {epsilon}{sub {gamma}} {approx}> 0.9. We discuss various issues related to this result, including an alternative interpretation of the light curve in terms of a two-component outflow model, which we apply to the X-ray observations of GRB 050315. We point out, however, that another interpretation of the flattish decay--a variable X-ray afterglow efficiency (e.g., due to a time dependence of afterglow shock microphysical parameters)--is possible. We also show that direct estimates of the kinetic energy from the late X-ray afterglow flux are sensitive to the assumed values of the shock microphysical parameters and suggest that broad-band afterglow fits might have underestimated the kinetic energy (e.g., by overestimating the fraction of electrons that are accelerated to relativistic energies). Either one of these possibilities implies a

  2. Building Technologies Office Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Roland Risser Director, Building Technologies Office Building Technologies Office Energy Efficiency Starts Here. 2 Building Technologies Office Integrated Approach: Improving ...

  3. Geothermal Electricity Technology Evaluation Model (GETEM) Development |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Development Geothermal Electricity Technology Evaluation Model (GETEM) Development Project objective: Provide a tool for estimating the performance and contributions of all phases of a geothermal project to power generation costs. analysis_mines_getem_development.pdf (545.29 KB) More Documents & Publications 2009 Geothermal, Co-Production, and GSHP Supply Curves Systems Engineering Analysis of Low-Temperature Utilization of Geothermal Resources

  4. Multivariate curve resolution for the analysis of remotely sensed thermal infrared hyperspectral images.

    SciTech Connect

    Haaland, David Michael; Stork, Christopher Lyle; Keenan, Michael Robert

    2004-07-01

    While hyperspectral imaging systems are increasingly used in remote sensing and offer enhanced scene characterization relative to univariate and multispectral technologies, it has proven difficult in practice to extract all of the useful information from these systems due to overwhelming data volume, confounding atmospheric effects, and the limited a priori knowledge regarding the scene. The need exists for the ability to perform rapid and comprehensive data exploitation of remotely sensed hyperspectral imagery. To address this need, this paper describes the application of a fast and rigorous multivariate curve resolution (MCR) algorithm to remotely sensed thermal infrared hyperspectral images. Employing minimal a priori knowledge, notably non-negativity constraints on the extracted endmember profiles and a constant abundance constraint for the atmospheric upwelling component, it is demonstrated that MCR can successfully compensate thermal infrared hyperspectral images for atmospheric upwelling and, thereby, transmittance effects. We take a semi-synthetic approach to obtaining image data containing gas plumes by adding emission gas signals onto real hyperspectral images. MCR can accurately estimate the relative spectral absorption coefficients and thermal contrast distribution of an ammonia gas plume component added near the minimum detectable quantity.

  5. Manufacturing technologies

    SciTech Connect

    1995-09-01

    The Manufacturing Technologies Center is an integral part of Sandia National Laboratories, a multiprogram engineering and science laboratory, operated for the Department of Energy (DOE) with major facilities at Albuquerque, New Mexico, and Livermore, California. Our Center is at the core of Sandia`s Advanced Manufacturing effort which spans the entire product realization process.

  6. (Environmental technology)

    SciTech Connect

    Boston, H.L.

    1990-10-12

    The traveler participated in a conference on environmental technology in Paris, sponsored by the US Embassy-Paris, US Environmental Protection Agency (EPA), the French Environmental Ministry, and others. The traveler sat on a panel for environmental aspects of energy technology and made a presentation on the potential contributions of Oak Ridge National Laboratory (ORNL) to a planned French-American Environmental Technologies Institute in Chattanooga, Tennessee, and Evry, France. This institute would provide opportunities for international cooperation on environmental issues and technology transfer related to environmental protection, monitoring, and restoration at US Department of Energy (DOE) facilities. The traveler also attended the Fourth International Conference on Environmental Contamination in Barcelona. Conference topics included environmental chemistry, land disposal of wastes, treatment of toxic wastes, micropollutants, trace organics, artificial radionuclides in the environment, and the use biomonitoring and biosystems for environmental assessment. The traveler presented a paper on The Fate of Radionuclides in Sewage Sludge Applied to Land.'' Those findings corresponded well with results from studies addressing the fate of fallout radionuclides from the Chernobyl nuclear accident. There was an exchange of new information on a number of topics of interest to DOE waste management and environmental restoration needs.

  7. Plasma technology

    SciTech Connect

    Herlitz, H.G.

    1986-11-01

    This paper describes the uses of plasma technology for the thermal destruction of hazardous wastes such as PCBs, dioxins, hydrocarbons, military chemicals and biological materials; for metals recovery from steel making dusts. One advantage of the process is that destruction of wastes can be carried out on site. Systems in several countries use the excess thermal energy for district heating.

  8. Estimating Terrorist Risk with Possibility Theory

    SciTech Connect

    J.L. Darby

    2004-11-30

    This report summarizes techniques that use possibility theory to estimate the risk of terrorist acts. These techniques were developed under the sponsorship of the Department of Homeland Security (DHS) as part of the National Infrastructure Simulation Analysis Center (NISAC) project. The techniques have been used to estimate the risk of various terrorist scenarios to support NISAC analyses during 2004. The techniques are based on the Logic Evolved Decision (LED) methodology developed over the past few years by Terry Bott and Steve Eisenhawer at LANL. [LED] The LED methodology involves the use of fuzzy sets, possibility theory, and approximate reasoning. LED captures the uncertainty due to vagueness and imprecision that is inherent in the fidelity of the information available for terrorist acts; probability theory cannot capture these uncertainties. This report does not address the philosophy supporting the development of nonprobabilistic approaches, and it does not discuss possibility theory in detail. The references provide a detailed discussion of these subjects. [Shafer] [Klir and Yuan] [Dubois and Prade] Suffice to say that these approaches were developed to address types of uncertainty that cannot be addressed by a probability measure. An earlier report discussed in detail the problems with using a probability measure to evaluate terrorist risk. [Darby Methodology]. Two related techniques are discussed in this report: (1) a numerical technique, and (2) a linguistic technique. The numerical technique uses traditional possibility theory applied to crisp sets, while the linguistic technique applies possibility theory to fuzzy sets. Both of these techniques as applied to terrorist risk for NISAC applications are implemented in software called PossibleRisk. The techniques implemented in PossibleRisk were developed specifically for use in estimating terrorist risk for the NISAC program. The LEDTools code can be used to perform the same linguistic evaluation as

  9. 21-PWR WASTE PACKAGE WITH ABSORBER PLATES LOADING CURVE EVALUATION

    SciTech Connect

    J.M. Scaglione

    2004-12-17

    The objective of this calculation is to evaluate the required minimum burnup as a function of initial pressurized water reactor (PWR) assembly enrichment that would permit loading of spent nuclear fuel into the 21 PWR waste package with absorber plates design as provided in Attachment IV. This calculation is an example of the application of the methodology presented in the ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of enrichments from 0 through 5.0 weight percent U-235, and a burnup range of 0 through 45 GWd/MTU. Higher burnups were not necessary because 45 GWd/MTU was high enough for the loading curve determination. This activity supports the validation of the use of burnup credit for commercial spent nuclear fuel applications. The intended use of these results will be in establishing PWR waste package configuration loading specifications. Limitations of this evaluation are as follows: (1) The results are based on burnup credit for actinides and selected fission products as proposed in YMP (2003, Table 3-1) and referred to as the ''Principal Isotopes''. Any change to the isotope listing will have a direct impact on the results of this report. (2) The results are based on 1.5 wt% Gd in the Ni-Gd Alloy material and having no tuff inside the waste package. If the Gd loading is reduced or a process to introduce tuff inside the waste package is defined, then this report would need to be reevaluated based on the alternative materials. This calculation is subject to the ''Quality Assurance Requirements and Description'' (QARD) (DOE 2004) because it concerns engineered barriers that are included in the ''Q-List'' (BSC 2004k, Appendix A) as items important to safety and waste isolation.

  10. Possibilities for Nuclear Photo-Science with Intense Lasers

    SciTech Connect

    Barty, C J; Hartemann, F V; McNabb, D P; Messerly, M; Siders, C; Anderson, S; Barnes, P; Betts, S; Gibson, D; Hagmann, C; Hernandez, J; Johnson, M; Jovanovic, I; Norman, R; Pruet, J; Rosenswieg, J; Shverdin, M; Tremaine, A

    2006-06-26

    The interaction of intense laser light with relativistic electrons can produce unique sources of high-energy x rays and gamma rays via Thomson scattering. ''Thomson-Radiated Extreme X-ray'' (T-REX) sources with peak photon brightness (photons per unit time per unit bandwidth per unit solid angle per unit area) that exceed that available from world's largest synchrotrons by more than 15 orders of magnitude are possible from optimally designed systems. Such sources offer the potential for development of ''nuclear photo-science'' applications in which the primary photon-atom interaction is with the nucleons and not the valence electrons. Applications include isotope-specific detection and imaging of materials, inverse density radiography, transmutation of nuclear waste and fundamental studies of nuclear structure. Because Thomson scattering cross sections are small, < 1 barn, the output from a T-REX source is optimized when the laser spot size and the electron spot size are minimized and when the electron and laser pulse durations are similar and short compared to the transit time through the focal region. The principle limitation to increased x-ray or gamma-ray brightness is ability to focus the electron beam. The effects of space charge on electron beam focus decrease approximately linearly with electron beam energy. For this reason, T-REX brightness increases rapidly as a function of the electron beam energy. As illustrated in Figure 1, above 100 keV these sources are unique in their ability to produce bright, narrow-beam, tunable, narrow-band gamma rays. New, intense, short-pulse, laser technologies for advanced T-REX sources are currently being developed at LLNL. The construction of a {approx}1 MeV-class machine with this technology is underway and will be used to excite nuclear resonance fluorescence in variety of materials. Nuclear resonance fluorescent spectra are unique signatures of each isotope and provide an ideal mechanism for identification of nuclear

  11. Emerging Technologies and MOUT

    SciTech Connect

    YONAS,GEROLD; MOY,TIMOTHY DAVID

    2000-11-15

    Operating in a potentially hostile city is every soldier's nightmare. The staggering complexity of the urban environment means that deadly threats--or non-combatants-may lurk behind every corner, doorway, or window. Urban operations present an almost unparalleled challenge to the modern professional military. The complexity of urban operations is further amplified by the diversity of missions that the military will be called upon to conduct in urban terrain. Peace-making and peace-keeping missions, urban raids to seize airports or WMD sites or to rescue hostages, and extended urban combat operations all present different sorts of challenges for planners and troops on the ground. Technology almost never serves as a magic bullet, and past predictions of technological miracles pile high on the ash heap of history. At the same time, it is a vital element of planning in the modern age to consider and, if possible, take advantage of emerging technologies. We believe that technologies can assist military operations in urbanized terrain (MOUT) in three primary areas, which are discussed.

  12. Export possibilities for small nuclear reactors

    SciTech Connect

    Campagna, M.S.; Hess, C.; Moor, P.; Sawruk, W.

    2007-07-01

    The worldwide deployment of peaceful nuclear technology is predicated on conformance with the Nuclear Non-Proliferation Treaty of 1972. Under this international treaty, countries have traded away pursuit of nuclear weapons in exchange for access to commercial nuclear technology that could help them grow economically. Realistically, however, most nuclear technology has been beyond the capacity of the NPT developing countries to afford. Even if the capital cost of the plant is managed, the costs of the infrastructure and the operational complexity of most nuclear technology have taken it out of the hands of the nations who need it the most. Now, a new class of small sodium cooled reactors has been specifically designed to meet the electrical power, water, hydrogen and heat needs of small and remote users. These reactors feature small size, long refueling interval, no onsite fuel storage, and simplified operations. Sized in the 10 MW(e) to 50 MW(e) range these reactors are modularized for factory production and for rapid site assembly. The fuel would be <20% U-235 uranium fuel with a 30-year core life. This new reactor type more appropriately fills the needs of countries for lower power distributed systems that can fill the gap between large developed infrastructure and primitive distributed energy systems. Looking at UN Resolution 1540 and the impact of other agreements, there is a need to address the issues of nuclear security, fuel, waste, and economic/legal/political-stakeholder concerns. This paper describes the design features of this new reactor type that specifically address these issues in a manner that increases the availability of commercial nuclear technology to the developing nations of the world. (authors)

  13. Software Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Software Software Technology Enabling a new era of computational and scientific capabilities by advancing high-performance computing on an exponential scale. Contacts Galen Shipman Applied Computer Science (505) 665-4021 Email Michael Lang Computer, Computational, and Statistical Sciences (505) 500-2993 Email James Ahrens Applied Computer Science (505) 667-5797 Email Video thumbnail image for ExaSky software 3:21 ExaSky: Next-generation dark matter cosmology simulations (demonstration) The

  14. Enhanced ferroelectric polarization and possible morphotrophic phase

    Office of Scientific and Technical Information (OSTI)

    boundary in PZT-based alloys (Journal Article) | SciTech Connect Enhanced ferroelectric polarization and possible morphotrophic phase boundary in PZT-based alloys Citation Details In-Document Search This content will become publicly available on May 16, 2017 Title: Enhanced ferroelectric polarization and possible morphotrophic phase boundary in PZT-based alloys We present a combined theoretical and experimental study of alloys of the high performance piezoelectric PZT (PbZr0.5Ti0.5O3) with

  15. Is Wireless Electricity Possible? | GE Global Research

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Is Wireless Electricity Possible? Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) Is Wireless Electricity Possible? 2012.06.08 Chief Scientist Jim Bray discusses the evolution of wireless power transmission from short distances and limited power to longer distances and greater power. 0 Comments Comment Name Email Submit

  16. Building Technologies Office Overview

    SciTech Connect

    2013-04-01

    Building Technologies Office Overview Presentation for the 2013 Building Technologies Office's Program Peer Review

  17. THE BEHAVIOR OF NOVAE LIGHT CURVES BEFORE ERUPTION

    SciTech Connect

    Collazzi, Andrew C.; Schaefer, Bradley E.; Xiao Limin; Pagnotta, Ashley; Kroll, Peter; Loechel, Klaus; Henden, Arne A.

    2009-12-15

    In 1975, E. R. Robinson conducted the hallmark study of the behavior of classical nova light curves before eruption, and this work has now become part of the standard knowledge of novae. He made three points: 5 out of 11 novae showed pre-eruption rises in the years before eruption, one nova (V446 Her) showed drastic changes in the variability across eruptions, and all but one of the novae (excepting BT Mon) have the same quiescent magnitudes before and after the outburst. This work has not been tested since it came out. We have now tested these results by going back to the original archival photographic plates and measuring large numbers of pre-eruption magnitudes for many novae using comparison stars on a modern magnitude scale. We find in particular that four out of five claimed pre-eruption rises are due to simple mistakes in the old literature, that V446 Her has the same amplitude of variations across its 1960 eruption, and that BT Mon has essentially unchanged brightness across its 1939 eruption. Out of 22 nova eruptions, we find two confirmed cases of significant pre-eruption rises (for V533 Her and V1500 Cyg), while T CrB has a deep pre-eruption dip. These events are a challenge to theorists. We find no significant cases of changes in variability across 27 nova eruptions beyond what is expected due to the usual fluctuations seen in novae away from eruptions. For 30 classical novae plus 19 eruptions from 6 recurrent novae, we find that the average change in magnitude from before the eruption to long after the eruption is 0.0 mag. However, we do find five novae (V723 Cas, V1500 Cyg, V1974 Cyg, V4633 Sgr, and RW UMi) that have significantly large changes, in that the post-eruption quiescent brightness level is over ten times brighter than the pre-eruption level. These large post-eruption brightenings are another challenge to theorists.

  18. Emerging technologies

    SciTech Connect

    Lu, Shin-yee

    1993-03-01

    The mission of the Emerging Technologies thrust area at Lawrence Livermore National Laboratory is to help individuals establish technology areas that have national and commercial impact, and are outside the scope of the existing thrust areas. We continue to encourage innovative ideas that bring quality results to existing programs. We also take as our mission the encouragement of investment in new technology areas that are important to the economic competitiveness of this nation. In fiscal year 1992, we have focused on nine projects, summarized in this report: (1) Tire, Accident, Handling, and Roadway Safety; (2) EXTRANSYT: An Expert System for Advanced Traffic Management; (3) Odin: A High-Power, Underwater, Acoustic Transmitter for Surveillance Applications; (4) Passive Seismic Reservoir Monitoring: Signal Processing Innovations; (5) Paste Extrudable Explosive Aft Charge for Multi-Stage Munitions; (6) A Continuum Model for Reinforced Concrete at High Pressures and Strain Rates: Interim Report; (7) Benchmarking of the Criticality Evaluation Code COG; (8) Fast Algorithm for Large-Scale Consensus DNA Sequence Assembly; and (9) Using Electrical Heating to Enhance the Extraction of Volatile Organic Compounds from Soil.

  19. Technology disrupted

    SciTech Connect

    Papatheodorou, Y.

    2007-02-15

    Three years ago, the author presented a report on power generation technologies which in summary said 'no technology available today has the potential of becoming transformational or disruptive in the next five to ten years'. In 2006 the company completed another strategic view research report covering the electric power, oil, gas and unconventional energy industries and manufacturing industry. This article summarises the strategic view findings and then revisits some of the scenarios presented in 2003. The cost per megawatt-hour of the alternatives is given for plants ordered in 2005 and then in 2025. The issue of greenhouse gas regulation is dealt with through carbon sequestration and carbon allowances or an equivalent carbon tax. Results reveal substantial variability through nuclear power, hydro, wind, geothermal and biomass remain competitive through every scenario. Greenhouse gas scenario analysis shows coal still be viable, albeit less competitive against nuclear and renewable technologies. A carbon tax or allowance at $24 per metric ton has the same effect on IGCC cost as a sequestration mandate. However, the latter would hurt gas plants much more than a tax or allowance. Sequestering CO{sub 2} from a gas plant is almost as costly per megawatt-hour as for coal. 5 refs., 5 figs., 5 tabs.

  20. Prospects of Smart Grid Technologies for a Sustainable and Secure...

    OpenEI (Open Energy Information) [EERE & EIA]

    URI: cleanenergysolutions.orgcontentprospects-smart-grid-technologies-sus Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible...

  1. OSTIblog Articles in the nuclear weapons technology Topic | OSTI...

    Office of Scientific and Technical Information (OSTI)

    The NASA space program of the 1960s helped make modern communications possible. By helping ... technology of the cold war to launch satellites, NASA engineers deserve special praise. ...

  2. National Energy Technology Laboratory Publishes Solid Oxide Fuel...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    as quickly as possible. The NETL-managed program is currently developing solid oxide fuel cells for large power plants. The same technology is also likely to find...

  3. HEMISPHERIC CENTER FOR ENVIRONMENTAL TECHNOLOGY

    SciTech Connect

    M.A. Ebadian

    1999-01-31

    FIU-HCET participated in an ICT meeting at Mound during the second week of December and presented a brief videotape of the testing of the Robotic Climber technology. During this meeting, FIU-HCET proposed the TechXtract technology for possible testing at Mound and agreed to develop a five-page proposal for review by team members. FIU-HCET provided assistance to Bartlett Inc. and General Lasertronics Corporation in developing a proposal for a Program Opportunity Notice (PON). The proposal was submitted by these companies on January 5, 1999. The search for new equipment dismantlement technologies is continuing. The following vendors have responded to requests for demonstration: LUMONICS, Laser Solutions technology; CRYO-BEAM, Cryogenic cutting technology; Waterjet Technology Association, Waterjet Cutting technology; and DIAJET, Waterjet Cutting technology. Based on the tasks done in FY98, FIU-HCET is working closely with Numatec Hanford Corporation (NHC) and Pacific Northwest National Laboratory (PNNL) to revise the plan and scope of work of the pipeline plugging project in FY99, which involves activities of lab-scale flow loop experiments and a large-scale demonstration test bed.

  4. Testing technology

    SciTech Connect

    Not Available

    1993-10-01

    This bulletin from Sandia National Laboratories presents current research highlights in testing technology. Ion microscopy offers new nondestructive testing technique that detects high resolution invisible defects. An inexpensive thin-film gauge checks detonators on centrifuge. Laser trackers ride the range and track helicopters at low-level flights that could not be detected by radar. Radiation transport software predicts electron/photon effects via cascade simulation. Acoustic research in noise abatement will lead to quieter travelling for Bay Area Rapid Transport (BART) commuters.

  5. TECHNOLOGY TRANSFER

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    404-NOV. 1, 2000 TECHNOLOGY TRANSFER COMMERCIALIZATION ACT OF 2000 VerDate 11-MAY-2000 04:52 Nov 16, 2000 Jkt 089139 PO 00000 Frm 00001 Fmt 6579 Sfmt 6579 E:\PUBLAW\PUBL404.106 APPS27 PsN: PUBL404 114 STAT. 1742 PUBLIC LAW 106-404-NOV. 1, 2000 Public Law 106-404 106th Congress An Act To improve the ability of Federal agencies to license federally owned inventions. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT

  6. Technology Name

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tech Fact Sheet Site Project & Identifier Tech Stage: Development DE-EM0000598 D&D KM-IT For the deployment of Information Technology for D&D knowledge management Page 1 of 2 Florida International University Florida D&D Knowledge Management Information Tool Challenge Deactivation and decommissioning (D&D) work is a high priority across the DOE Complex. The D&D community associated with the various DOE sites has gained extensive knowledge and experience over the years. To

  7. Methods for the Precise Locating and Forming of Arrays of Curved Features into a Workpiece

    DOEpatents

    Gill, David Dennis; Keeler, Gordon A.; Serkland, Darwin K.; Mukherjee, Sayan D.

    2008-10-14

    Methods for manufacturing high precision arrays of curved features (e.g. lenses) in the surface of a workpiece are described utilizing orthogonal sets of inter-fitting locating grooves to mate a workpiece to a workpiece holder mounted to the spindle face of a rotating machine tool. The matching inter-fitting groove sets in the workpiece and the chuck allow precisely and non-kinematically indexing the workpiece to locations defined in two orthogonal directions perpendicular to the turning axis of the machine tool. At each location on the workpiece a curved feature can then be on-center machined to create arrays of curved features on the workpiece. The averaging effect of the corresponding sets of inter-fitting grooves provide for precise repeatability in determining, the relative locations of the centers of each of the curved features in an array of curved features.

  8. Possible ways to achieve cold fusion. III

    SciTech Connect

    Tisenko, Yu.A.

    1994-12-01

    It is suggested that a deuteron {open_quotes}microaccelerator{close_quotes} be constructed in order to achieve cold fusion. This accelerator would operate on the basis of a glow discharge near a charged Pd-D powder grain in low-density gaseous D{sub 2}. Possible parameters of such an accelerator are calculated. The heat released as a result of fusion is estimated, as is the intensity of the deuteron flux.

  9. Building Technologies Office Window and Envelope Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Building Technologies Office Window and Envelope Technologies Emerging Technologies R&D Program Karma Sawyer, Ph.D. karma.sawyer@ee.doe.gov BTO Goal Reduce building energy use by ...

  10. NETL Technologies Recognized for Technology Development, Transfer |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Recognized for Technology Development, Transfer NETL Technologies Recognized for Technology Development, Transfer October 25, 2013 - 1:31pm Addthis Did you know? The Federal Laboratory Consortium for Technology Transfer is the nationwide network of federal laboratories that provides the forum to develop strategies and opportunities for linking laboratory mission technologies and expertise with the marketplace. In consonance with the Federal Technology Transfer Act of

  11. High Impact Technology Catalyst: Technology Deployment Strategies |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Catalyst: Technology Deployment Strategies High Impact Technology Catalyst: Technology Deployment Strategies The Energy Department released the High Impact Technology Catalyst: Technology Deployment Strategies to serve as an overview of the HIT Catalyst program activities, including a summary of the selection process undertaken to identify, evaluate and prioritize the current HITs, descriptions of the technologies and markets for each HIT, and plans for deployment. High

  12. Coal based synthetic fuel technology assessment guides

    SciTech Connect

    Not Available

    1981-09-01

    Seventeen synthetic fuel processes are described in detail and compared on a uniform basis. This work was supported by the Energy Information Administration for the purpose of technology assessment of the processes, their efficiency, the capitalized and operating cost of plants of similar size, possible constraints, possible siting problems, regional effects, pollution control, etc. (LTN)

  13. Nuclear Science & Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Nuclear Science & Technology Nuclear Science & Technology1354608000000Nuclear Science & TechnologySome of these resources are LANL-only and will require Remote Access. No...

  14. NREL: Technology Transfer - Ombuds

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Transfer Ombuds NREL's Technology Transfer Ombuds offers an informal process to help resolve issues and concerns regarding the laboratory's technology partnership,...

  15. Hydrogen Technologies Group

    SciTech Connect

    Not Available

    2008-03-01

    The Hydrogen Technologies Group at the National Renewable Energy Laboratory advances the Hydrogen Technologies and Systems Center's mission by researching a variety of hydrogen technologies.

  16. Distributed Energy Technology Characterization (Desiccant Technologies...

    Energy.gov [DOE] (indexed site)

    desiccant technology and applications, and to show how these technologies can be designed to utilize the available thermal energy from a combined heat and power (CHP) system. ...

  17. Vehicle Technologies Office: 2009 Advanced Vehicle Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Well-to-Wheels Analysis of Energy Use and Greenhouse Gas Emissions of Plug-In Hybrid Electric Vehicles Vehicle Technologies Office: 2008 Advanced Vehicle Technology Analysis and ...

  18. Vehicle Technologies Office: 2014 Electric Drive Technologies...

    Energy.gov [DOE] (indexed site)

    Electric Drive Technologies research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge ...

  19. Night vision device technology development

    SciTech Connect

    Funsten, H.; Nordholt, J.; Suszcynsky, D.

    1998-12-31

    This is the final report of a two-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). This project sought to develop microchannel plate (MCP) technologies for enhancement of night vision device (NVD) capabilities. First, the authors addressed the need for segmented microchannel plates with independent gain control to minimize loss of low level light images in the presence of a bright light source (e.g., battlefield lasers, flares, and headlights). This would enable, for example, enhanced vision capabilities during night operations in a city environment and continuous capability of aviators to see the horizon, near-ground obstructions, and ground targets. Second, the authors addressed the need for curved microchannel plate technology to increase the field of view of NVDs while minimizing optical aberrations. This development would significantly enhance peripheral vision capabilities of aviators and result in easier adaptation of the human eye to NVDs. The authors have developed two technologies to overcome these problems, and they have initiated a collaborative effort with an industrial partner to develop a proof-of-principle prototype.

  20. Extrapolation of the J-R curve for predicting reactor vessel integrity

    SciTech Connect

    Landes, J.D.

    1992-01-01

    the work in this report was conducted in support of the issues studied by the US Nuclear Regulatory Commission (NRC) J{sub D}/J{sub M} Workers Group during the period 1987--1989. The major issues studies were the J-R curve extrapolation techniques for using small-specimen test results to predict ductile instability in larger structures where the extent of crack extension from the small-specimen test was not sufficient. This included the choice of parameter in characterizing the J-R curve, deformation J, or modified J, J{sub M}. These issues are studied both by comparing small- and large-specimen J-R curves and by using J-R curves from smaller specimens to predict the behavior of larger specimens and pressure vessel models. An additional issue was raised during the course of this work by the testing a low-upper-shelf A 302 shelf. The results from these tests were not typical of ductile fracture in many steel and suggested that small-specimen J-R curves may not predict the behavior of large structures in some cases. The causes of this behavior were studies as well as the consequences of using the J-R curve results from small specimens of this kind of material. Finally, a discussion and recommendations are given relating to the use of extrapolated J-R curves.

  1. On a framework for generating PoD curves assisted by numerical simulations

    SciTech Connect

    Subair, S. Mohamed Agrawal, Shweta Balasubramaniam, Krishnan Rajagopal, Prabhu; Kumar, Anish; Rao, Purnachandra B.; Tamanna, Jayakumar

    2015-03-31

    The Probability of Detection (PoD) curve method has emerged as an important tool for the assessment of the performance of NDE techniques, a topic of particular interest to the nuclear industry where inspection qualification is very important. The conventional experimental means of generating PoD curves though, can be expensive, requiring large data sets (covering defects and test conditions), and equipment and operator time. Several methods of achieving faster estimates for PoD curves using physics-based modelling have been developed to address this problem. Numerical modelling techniques are also attractive, especially given the ever-increasing computational power available to scientists today. Here we develop procedures for obtaining PoD curves, assisted by numerical simulation and based on Bayesian statistics. Numerical simulations are performed using Finite Element analysis for factors that are assumed to be independent, random and normally distributed. PoD curves so generated are compared with experiments on austenitic stainless steel (SS) plates with artificially created notches. We examine issues affecting the PoD curve generation process including codes, standards, distribution of defect parameters and the choice of the noise threshold. We also study the assumption of normal distribution for signal response parameters and consider strategies for dealing with data that may be more complex or sparse to justify this. These topics are addressed and illustrated through the example case of generation of PoD curves for pulse-echo ultrasonic inspection of vertical surface-breaking cracks in SS plates.

  2. Best Possible Strategy for Finding Ground States

    SciTech Connect

    Franz, Astrid; Hoffmann, Karl Heinz; Salamon, Peter

    2001-06-04

    Finding the ground state of a system with a complex energy landscape is important for many physical problems including protein folding, spin glasses, chemical clusters, and neural networks. Such problems are usually solved by heuristic search methods whose efficacy is judged by empirical performance on selected examples. We present a proof that, within the large class of algorithms that simulate a random walk on the landscape, threshold accepting is the best possible strategy. In particular, it can perform better than simulated annealing and Tsallis statistics. Our proof is the first example of a provably optimal strategy in this area.

  3. A new approach for magnetic curves in 3D Riemannian manifolds

    SciTech Connect

    Bozkurt, Zehra Gk, Ismail Yayl?, Yusuf Ekmekci, F. Nejat

    2014-05-15

    A magnetic field is defined by the property that its divergence is zero in a three-dimensional oriented Riemannian manifold. Each magnetic field generates a magnetic flow whose trajectories are curves called as magnetic curves. In this paper, we give a new variational approach to study the magnetic flow associated with the Killing magnetic field in a three-dimensional oriented Riemann manifold, (M{sup 3}, g). And then, we investigate the trajectories of the magnetic fields called as N-magnetic and B-magnetic curves.

  4. Retrospective North American CFL Experience Curve Analysis and Correlation to Deployment Programs

    Energy.gov [DOE]

    This work documents our development of an analysis approach for deriving retrospective experience curves with a variable learning rate, and its application to develop an experience curve for compact fluorescent lamps for the global and North American markets over the years 1990-2007. Uncertainties and assumptions involved in interpreting data for our experience curve development are discussed, including the processing and transformation of empirical data, the selection of system boundaries, and the identification of historical changes in the learning rate over the course of 15 years.

  5. 2016 Annual Technology Baseline

    DOE Data Explorer

    Hand, Maureen; Kurup, Parthiv

    2016-09-15

    Current and future cost and performance data for electricity generating technologies, including both renewable and conventional technologies.

  6. Technology Partnership Agreements | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Investment Agreements Technology Investment Agreements Guidance Policy Flash 2006-31 - Technology Investment Agreements Financial Assistance Letter 2006-03 - Guidance for Awarding Technology Investment Agreements Final Rule - Financial Assistance Regulations - Technology Investment Agreements Templates Company Template (Expenditure-Based) Consortium Template (Expenditure-Based) Company Template (Fixed Support) Consortium Support (Fixed Support) Training Technology Investment

  7. Real space mapping of oxygen vacancy diffusion and electrochemical transformations by hysteretic current reversal curve measurements

    DOEpatents

    Kalinin, Sergei V.; Balke, Nina; Borisevich, Albina Y.; Jesse, Stephen; Maksymovych, Petro; Kim, Yunseok; Strelcov, Evgheni

    2014-06-10

    An excitation voltage biases an ionic conducting material sample over a nanoscale grid. The bias sweeps a modulated voltage with increasing maximal amplitudes. A current response is measured at grid locations. Current response reversal curves are mapped over maximal amplitudes of the bias cycles. Reversal curves are averaged over the grid for each bias cycle and mapped over maximal bias amplitudes for each bias cycle. Average reversal curve areas are mapped over maximal amplitudes of the bias cycles. Thresholds are determined for onset and ending of electrochemical activity. A predetermined number of bias sweeps may vary in frequency where each sweep has a constant number of cycles and reversal response curves may indicate ionic diffusion kinetics.

  8. Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles

    DOEpatents

    Carpenter, Donald A.

    1995-01-01

    A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, using a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data.

  9. High Pressure Melting Curve of TIn (Journal Article) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    High Pressure Melting Curve of TIn Citation Details ... OSTI Identifier: 1124823 Report Number(s): LLNL-JRNL-522418 DOE Contract Number: W-7405-ENG-48 Resource Type: Journal ...

  10. A comparison of optical and H I rotation curves in M 31

    SciTech Connect

    Kent, S.M. )

    1989-05-01

    New redshifts have been obtained for H II regions along the major axis. These data, combined with a reanalysis of previously published work, show that optical and 21-cm determinations of the rotation curve are in excellent agreement. 12 refs.

  11. Curved Mesh Correction And Adaptation Tool to Improve COMPASS Electromagnetic Analyses

    SciTech Connect

    Luo, X.; Shephard, M.; Lee, L.Q.; Ng, C.; Ge, L.; /SLAC

    2011-11-14

    SLAC performs large-scale simulations for the next-generation accelerator design using higher-order finite elements. This method requires using valid curved meshes and adaptive mesh refinement in complex 3D curved domains to achieve its fast rate of convergence. ITAPS has developed a procedure to address those mesh requirements to enable petascale electromagnetic accelerator simulations by SLAC. The results demonstrate that those correct valid curvilinear meshes can not only make the simulation more reliable but also improve computational efficiency up to 30%. This paper presents a procedure to track moving adaptive mesh refinement in curved domains. The procedure is capable of generating suitable curvilinear meshes to enable large-scale accelerator simulations. The procedure can generate valid curved meshes with substantially fewer elements to improve the computational efficiency and reliability of the COMPASS electromagnetic analyses. Future work will focus on the scalable parallelization of all steps for petascale simulations.

  12. Gamma-ray burst prompt emission light curves and power density spectra in the ICMART model

    SciTech Connect

    Zhang, Bo [School of Astronomy and Space Science, Nanjing University, Nanjing 210093 (China); Zhang, Bing, E-mail: bozhang@physics.unlv.edu, E-mail: zhang@physics.unlv.edu [Department of Physics and Astronomy, University of Nevada Las Vegas, Las Vegas, NV 89154 (United States)

    2014-02-20

    In this paper, we simulate the prompt emission light curves of gamma-ray bursts (GRBs) within the framework of the Internal-Collision-induced MAgnetic Reconnection and Turbulence (ICMART) model. This model applies to GRBs with a moderately high magnetization parameter ? in the emission region. We show that this model can produce highly variable light curves with both fast and slow components. The rapid variability is caused by many locally Doppler-boosted mini-emitters due to turbulent magnetic reconnection in a moderately high ? flow. The runaway growth and subsequent depletion of these mini-emitters as a function of time define a broad slow component for each ICMART event. A GRB light curve is usually composed of multiple ICMART events that are fundamentally driven by the erratic GRB central engine activity. Allowing variations of the model parameters, one is able to reproduce a variety of light curves and the power density spectra as observed.

  13. Tracking interface and common curve dynamics for two-fluid flow...

    Office of Scientific and Technical Information (OSTI)

    Tracking interface and common curve dynamics for two-fluid flow in porous media This content will become publicly available on April 29, 2017 Title: Tracking interface and common ...

  14. Wind turbine performance: Methods and criteria for reliability of measured power curves

    SciTech Connect

    Griffin, D.A.

    1996-12-31

    In order to evaluate the performance of prototype turbines, and to quantify incremental changes in performance through field testing, Advanced Wind Turbines (AWT) has been developing methods and requirements for power curve measurement. In this paper, field test data is used to illustrate several issues and trends which have resulted from this work. Averaging and binning processes, data hours per wind-speed bin, wind turbulence levels, and anemometry methods are all shown to have significant impacts on the resulting power curves. Criteria are given by which the AWT power curves show a high degree of repeatability, and these criteria are compared and contrasted with current published standards for power curve measurement. 6 refs., 5 figs., 5 tabs.

  15. MEASUREMENT OF THE SHOCK-HEATED MELT CURVE OF LEAD USING PYROMETRY AND REFLECTOMETRY

    SciTech Connect

    D. Partouche-Sebban and J. L. Pelissier, Commissariat a` l'Energie Atomique,; F. G. Abeyta, Los Alamos National Laboratory; W. W. Anderson, Los Alamos National Laboratory; M. E. Byers, Los Alamos National Laboratory; D. Dennis-Koller, Los Alamos National Laboratory; J. S. Esparza, Los Alamos National Laboratory; S. D. Borror, Bechtel Nevada; C. A. Kruschwitz, Bechtel Nevada

    2004-01-01

    Data on the high-pressure melting temperatures of metals is of great interest in several fields of physics including geophysics. Measuring melt curves is difficult but can be performed in static experiments (with laser-heated diamond-anvil cells for instance) or dynamically (i.e., using shock experiments). However, at the present time, both experimental and theoretical results for the melt curve of lead are at too much variance to be considered definitive. As a result, we decided to perform a series of shock experiments designed to provide a measurement of the melt curve of lead up to about 50 GPa in pressure. At the same time, we developed and fielded a new reflectivity diagnostic, using it to make measurements on tin. The results show that the melt curve of lead is somewhat higher than the one previously obtained with static compression and heating techniques.

  16. Vehicle Technologies Office Propulsion Materials Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Technologies Office Propulsion Materials Technologies Jerry Gibbs eere.energy.gov 2 | Vehicle Technologies Program Materials Technologies Materials Technologies $35.6 M Lightweight Materials $28.5 M Values are FY15 enacted Propulsion Materials $7.1 M Properties and Manufacturing Multi-Material Enabling Modeling & Computational Mat. Sci. Engine Materials, Cast Al & Fe High Temp Alloys Exhaust Sys. Materials, Low T Catalysts Lightweight Propulsion FY13 Enacted $27.5 M $11.9 M FY14

  17. Precise orientation of single crystals by a simple x-ray diffraction rocking curve method

    SciTech Connect

    Doucette, L.D.; Pereira da Cunha, M.; Lad, R.J.

    2005-03-01

    A simple method has been developed for accurately measuring the crystallographic orientation of a single crystal boule, employing a conventional four-circle x-ray diffraction arrangement in the rocking curve mode which relaxes the need for precise instrument and/or reference alignment. By acquiring a total of eight rocking curve measurements at specific orientations about the specimen azimuth, the absolute miscut angle between a crystal surface and the desired crystallographic plane can be resolved to within {+-}0.01 deg.

  18. Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Appendix A: FCTT AST and Polarization Curve Protocols for PEMFCs U.S. DRIVE Fuel Cell Tech Team Cell Component Accelerated Stress Test and Polarization Curve Protocols for PEM Fuel Cells (Electrocatalysts, Supports, Membranes, and Membrane Electrode Assemblies) Last Revision: January 14, 2013 Fuel cells, especially for automotive propulsion, must operate over a wide range of operating and cyclic conditions. The desired operating range encompasses temperatures from below the freezing point to

  19. Geo energy research and development: technology transfer

    SciTech Connect

    Traeger, R.K.

    1982-03-01

    Sandia Geo Energy Programs related to geothermal, coal, oil and gas, and synfuel resources have provided a useful mechanism for transferring laboratory technologies to private industry. Significant transfer of hardware, computer programs, diagnostics and instrumentation, advanced materials, and in situ process understanding has occurred through US/DOE supported programs in the past five years. The text briefly reviews the technology transfer procedures and summarizes 32 items that have been transferred and another 20 technologies that are now being considered for possible transfer to industry. A major factor in successful transfer has been personal interactions between Sandia engineers and the technical staff from private industry during all aspects of the technology development.

  20. A simple extension of two-phase characteristic curves to include the dry region

    SciTech Connect

    WEBB,STEPHEN W.

    2000-01-25

    Two-phase characteristic curves are necessary for the simulation of water and vapor flow in porous media. Existing functions such as van Genuchten, Brooks and Corey, and Luckner et al. have significant limitations in the dry region as the liquid saturation goes to zero. This region, which is important in a number of applications including liquid and vapor flow and vapor-solid sorption, has been the subject of a number of previous investigations. Most previous studies extended standard capillary pressure curves into the adsorption region to zero water content and required a refitting of the revised curves to the data. In contrast, the present method provides for a simple extension of existing capillary pressure curves without the need to refit the experimental data. Therefore, previous curve fits can be used, and the transition between the existing fit and the relationship in the adsorption region is easily calculated. The data-model comparison shows good agreement. This extension is a simple and convenient way to extend existing curves to the dry region.

  1. Shock melting method to determine melting curve by molecular dynamics: Cu, Pd, and Al

    SciTech Connect

    Liu, Zhong-Li; Zhang, Xiu-Lu; Cai, Ling-Cang

    2015-09-21

    A melting simulation method, the shock melting (SM) method, is proposed and proved to be able to determine the melting curves of materials accurately and efficiently. The SM method, which is based on the multi-scale shock technique, determines melting curves by preheating and/or prepressurizing materials before shock. This strategy was extensively verified using both classical and ab initio molecular dynamics (MD). First, the SM method yielded the same satisfactory melting curve of Cu with only 360 atoms using classical MD, compared to the results from the Z-method and the two-phase coexistence method. Then, it also produced a satisfactory melting curve of Pd with only 756 atoms. Finally, the SM method combined with ab initio MD cheaply achieved a good melting curve of Al with only 180 atoms, which agrees well with the experimental data and the calculated results from other methods. It turned out that the SM method is an alternative efficient method for calculating the melting curves of materials.

  2. POSSIBLE CHROMOSPHERIC ACTIVITY CYCLES IN AD LEO

    SciTech Connect

    Buccino, Andrea P.; Petrucci, Romina; Mauas, Pablo J. D.; Jofr, Emiliano

    2014-01-20

    AD Leo (GJ388) is an active dM3 flare star that has been extensively observed both in the quiescent and flaring states. Since this active star is near the fully convective boundary, studying its long-term chromospheric activity in detail could be an appreciable contribution to dynamo theory. Here, using the Lomb-Scargle periodogram, we analyze the Ca IIK line-core fluxes derived from CASLEO spectra obtained between 2001 and 2013 and the V magnitude from the ASAS database between 2004 and 2010. From both of these totally independent time series, we obtain a possible activity cycle with a period of approximately seven years and a less significant shorter cycle of approximately two years. A tentative interpretation is that a dynamo operating near the surface could be generating the longer cycle, while a second dynamo operating in the deep convection zone could be responsible for the shorter one. Based on the long duration of our observing program at CASLEO and the fact that we observe different spectral features simultaneously, we also analyze the relation between simultaneous measurements of the Na I index (R{sub D}{sup ?}), H?, and Ca IIK fluxes at different activity levels of AD Leo, including flares.

  3. New technologies for item monitoring

    SciTech Connect

    Abbott, J.A.; Waddoups, I.G.

    1993-12-01

    This report responds to the Department of Energy`s request that Sandia National Laboratories compare existing technologies against several advanced technologies as they apply to DOE needs to monitor the movement of material, weapons, or personnel for safety and security programs. The authors describe several material control systems, discuss their technologies, suggest possible applications, discuss assets and limitations, and project costs for each system. The following systems are described: WATCH system (Wireless Alarm Transmission of Container Handling); Tag system (an electrostatic proximity sensor); PANTRAK system (Personnel And Material Tracking); VRIS (Vault Remote Inventory System); VSIS (Vault Safety and Inventory System); AIMS (Authenticated Item Monitoring System); EIVS (Experimental Inventory Verification System); Metrox system (canister monitoring system); TCATS (Target Cueing And Tracking System); LGVSS (Light Grid Vault Surveillance System); CSS (Container Safeguards System); SAMMS (Security Alarm and Material Monitoring System); FOIDS (Fiber Optic Intelligence & Detection System); GRADS (Graded Radiation Detection System); and PINPAL (Physical Inventory Pallet).

  4. Science& Technology Review October 2003

    SciTech Connect

    McMahon, D H

    2003-10-01

    The October 2003 issue of Science & Technology Review consists of the following articles: (1) Award-Winning Technologies from Collaborative Efforts--Commentary by Hal Graboske; (2) BASIS Counters Airborne Bioterrorism--The Biological Aerosol Sentry and Information System is the first integrated biodefense system; (3) In the Chips for the Coming Decade--A new system is the first full-field lithography tool for use at extreme ultraviolet wavelengths; (4) Smoothing the Way to Print the Next Generation of Computer Chips--With ion-beam thin-film planarization, the reticles and projection optics made for extreme ultraviolet lithography are nearly defect-free; (5) Eyes Can See Clearly Now--The MEMS-based adaptive optics phoropter improves the process of measuring and correcting eyesight aberrations; (6) This Switch Takes the Heat--A thermally compensated Q-switch reduces the light leakage on high-average-power lasers; (7) Laser Process Forms Thick, Curved Metal Parts--A new process shapes parts to exact specifications, improving their resistance to fatigue and corrosion cracking; and (8) Characterizing Tiny Objects without Damaging Them--Livermore researchers are developing nondestructive techniques to probe the Lilliputian world of mesoscale objects.

  5. The curvature of sensitometric curves for Kodak XV-2 film irradiated with photon and electron beams

    SciTech Connect

    Battum, L. J. van; Huizenga, H.

    2006-07-15

    Sensitometric curves of Kodak XV-2 film, obtained in a time period of ten years with various types of equipment, have been analyzed both for photon and electron beams. The sensitometric slope in the dataset varies more than a factor of 2, which is attributed mainly to variations in developer conditions. In the literature, the single hit equation has been proposed as a model for the sensitometric curve, as with the parameters of the sensitivity and maximum optical density. In this work, the single hit equation has been translated into a polynomial like function as with the parameters of the sensitometric slope and curvature. The model has been applied to fit the sensitometric data. If the dataset is fitted for each single sensitometric curve separately, a large variation is observed for both fit parameters. When sensitometric curves are fitted simultaneously it appears that all curves can be fitted adequately with a sensitometric curvature that is related to the sensitometric slope. When fitting each curve separately, apparently measurement uncertainty hides this relation. This relation appears to be dependent only on the type of densitometer used. No significant differences between beam energies or beam modalities are observed. Using the intrinsic relation between slope and curvature in fitting sensitometric data, e.g., for pretreatment verification of intensity-modulated radiotherapy, will increase the accuracy of the sensitometric curve. A calibration at a single dose point, together with a predetermined densitometer-dependent parameter OD{sub max} will be adequate to find the actual relation between optical density and dose.

  6. Anti-matter propulsion: feasibility, status, and possible enhancement

    SciTech Connect

    Howe, S.D.

    1985-01-01

    The possible use of advanced propulsion techniques must be considered if the currently envisioned launch date of the Manned Mars Mission were to be delayed until 2020 or later. Within the next 30 years, technological advances may allow such methods as beaming power to the ship, inertial-confinement fusion, or mass-conversion of anti-protons to become feasible. Of the possible methods, the anti-proton (anti p), reaction offers the highest potential, the greastest problems, and the most fascination. An Isp of 5000 s would allow the currently envisioned ship to fly to Mars in 3 months and would require about one million pounds to be assembled in Earth orbit. Anti-protons are currently being produced in the world in amounts of about 10/sup 14/ particles per year. With sufficient effort, almost a mg/yr (6 x 10/sup 20/) could be produced by the early 2000s. Current experiments plan to decelerate and capture about 10/sup 10/ or greater anti-protons in an electrostatic Penning trap. Such traps may provide a source of low energy anti p's for development of better storage mechanisms suitable for propulsion. Recently, proposals have been investigated which would amplify the average energy released per anti p used. The proposals entail using the anti p's to produce inertial confinement fusion of a capsule or to produce negative muons which can catalyze fusion. By increasing the energy released per anti p, the effective specific cost, $/joule, can be reduced to attractive levels. These two proposals and other areas of research can be investigated now and will help in assessing the feasibility of an anti p engine.

  7. Innovative Technologies for Bioenergy Technologies Incubator...

    Energy.gov [DOE] (indexed site)

    00PM EDT Online The Innovative Technologies for Bioenergy Technologies Incubator 2 FOA Informational Webinar will be held Wednesday, September 2, 1:00 p.m.-2:00 p.m. ET. Standard...

  8. Plasma technology directory

    SciTech Connect

    Ward, P.P.; Dybwad, G.L.

    1995-03-01

    The Plasma Technology Directory has two main goals: (1) promote, coordinate, and share plasma technology experience and equipment within the Department of Energy; and (2) facilitate technology transfer to the commercial sector where appropriate. Personnel are averaged first by Laboratory and next by technology area. The technology areas are accelerators, cleaning and etching deposition, diagnostics, and modeling.

  9. TYPE Ia SUPERNOVA DISTANCE MODULUS BIAS AND DISPERSION FROM K-CORRECTION ERRORS: A DIRECT MEASUREMENT USING LIGHT CURVE FITS TO OBSERVED SPECTRAL TIME SERIES

    SciTech Connect

    Saunders, C.; Aldering, G.; Aragon, C.; Bailey, S.; Childress, M.; Fakhouri, H. K.; Kim, A. G.; Antilogus, P.; Bongard, S.; Canto, A.; Cellier-Holzem, F.; Guy, J.; Baltay, C.; Buton, C.; Chotard, N.; Copin, Y.; Gangler, E.; and others

    2015-02-10

    We estimate systematic errors due to K-corrections in standard photometric analyses of high-redshift Type Ia supernovae. Errors due to K-correction occur when the spectral template model underlying the light curve fitter poorly represents the actual supernova spectral energy distribution, meaning that the distance modulus cannot be recovered accurately. In order to quantify this effect, synthetic photometry is performed on artificially redshifted spectrophotometric data from 119 low-redshift supernovae from the Nearby Supernova Factory, and the resulting light curves are fit with a conventional light curve fitter. We measure the variation in the standardized magnitude that would be fit for a given supernova if located at a range of redshifts and observed with various filter sets corresponding to current and future supernova surveys. We find significant variation in the measurements of the same supernovae placed at different redshifts regardless of filters used, which causes dispersion greater than ∼0.05 mag for measurements of photometry using the Sloan-like filters and a bias that corresponds to a 0.03 shift in w when applied to an outside data set. To test the result of a shift in supernova population or environment at higher redshifts, we repeat our calculations with the addition of a reweighting of the supernovae as a function of redshift and find that this strongly affects the results and would have repercussions for cosmology. We discuss possible methods to reduce the contribution of the K-correction bias and uncertainty.

  10. The 4.5 μm full-orbit phase curve of the hot Jupiter HD 209458b

    SciTech Connect

    Zellem, Robert T.; Griffith, Caitlin A.; Showman, Adam P.; Lewis, Nikole K.; Knutson, Heather A.; Fortney, Jonathan J.; Laughlin, Gregory; Cowan, Nicolas B.; Agol, Eric; Burrows, Adam; Charbonneau, David; Deming, Drake; Langton, Jonathan

    2014-07-20

    The hot Jupiter HD 209458b is particularly amenable to detailed study as it is among the brightest transiting exoplanet systems currently known (V-mag = 7.65; K-mag = 6.308) and has a large planet-to-star contrast ratio. HD 209458b is predicted to be in synchronous rotation about its host star with a hot spot that is shifted eastward of the substellar point by superrotating equatorial winds. Here we present the first full-orbit observations of HD 209458b, in which its 4.5 μm emission was recorded with Spitzer/IRAC. Our study revises the previous 4.5 μm measurement of HD 209458b's secondary eclipse emission downward by ∼35% to 0.1391%{sub −0.0069%}{sup +0.0072%}, changing our interpretation of the properties of its dayside atmosphere. We find that the hot spot on the planet's dayside is shifted eastward of the substellar point by 40.°9 ± 6.°0, in agreement with circulation models predicting equatorial superrotation. HD 209458b's dayside (T{sub bright} = 1499 ± 15 K) and nightside (T{sub bright} = 972 ± 44 K) emission indicate a day-to-night brightness temperature contrast smaller than that observed for more highly irradiated exoplanets, suggesting that the day-to-night temperature contrast may be partially a function of the incident stellar radiation. The observed phase curve shape deviates modestly from global circulation model predictions potentially due to disequilibrium chemistry or deficiencies in the current hot CH{sub 4} line lists used in these models. Observations of the phase curve at additional wavelengths are needed in order to determine the possible presence and spatial extent of a dayside temperature inversion, as well as to improve our overall understanding of this planet's atmospheric circulation.

  11. Application of Hybrid Geo-Spatially Granular Fragility Curves to Improve Power Outage Predictions

    SciTech Connect

    Fernandez, Steven J; Allen, Melissa R; Omitaomu, Olufemi A; Walker, Kimberly A

    2014-01-01

    Fragility curves depict the relationship between a weather variable (wind speed, gust speed, ice accumulation, precipitation rate) and the observed outages for a targeted infrastructure network. This paper describes an empirical study of the county by county distribution of power outages and one minute weather variables during Hurricane Irene with the objective of comparing 1) as built fragility curves (statistical approach) to engineering as designed (bottom up) fragility curves for skill in forecasting outages during future hurricanes; 2) county specific fragility curves to find examples of significant deviation from average behavior; and 3) the engineering practices of outlier counties to suggest future engineering studies of robustness. Outages in more than 90% of the impacted counties could be anticipated through an average or generic fragility curve. The remaining counties could be identified and handled as exceptions through geographic data sets. The counties with increased or decreased robustness were characterized by terrain more or less susceptible to persistent flooding in areas where above ground poles located their foundations. Land use characteristics of the area served by the power distribution system can suggest trends in the as built power grid vulnerabilities to extreme weather events that would be subjects for site specific studies.

  12. KEPLER ECLIPSING BINARY STARS. III. CLASSIFICATION OF KEPLER ECLIPSING BINARY LIGHT CURVES WITH LOCALLY LINEAR EMBEDDING

    SciTech Connect

    Matijevic, Gal; Prsa, Andrej; Orosz, Jerome A.; Welsh, William F.; Bloemen, Steven; Barclay, Thomas E-mail: andrej.prsa@villanova.edu

    2012-05-15

    We present an automated classification of 2165 Kepler eclipsing binary (EB) light curves that accompanied the second Kepler data release. The light curves are classified using locally linear embedding, a general nonlinear dimensionality reduction tool, into morphology types (detached, semi-detached, overcontact, ellipsoidal). The method, related to a more widely used principal component analysis, produces a lower-dimensional representation of the input data while preserving local geometry and, consequently, the similarity between neighboring data points. We use this property to reduce the dimensionality in a series of steps to a one-dimensional manifold and classify light curves with a single parameter that is a measure of 'detachedness' of the system. This fully automated classification correlates well with the manual determination of morphology from the data release, and also efficiently highlights any misclassified objects. Once a lower-dimensional projection space is defined, the classification of additional light curves runs in a negligible time and the method can therefore be used as a fully automated classifier in pipeline structures. The classifier forms a tier of the Kepler EB pipeline that pre-processes light curves for the artificial intelligence based parameter estimator.

  13. Parametric System Curves: Correlations Between Fan Pressure Rise and Flow for Large Commercial Buildings

    SciTech Connect

    Sherman, Max; Wray, Craig

    2010-05-19

    A substantial fraction of HVAC energy use in large commercial buildings is due to fan operation. Fan energy use depends in part on the relationship between system pressure drop and flow through the fan, which is commonly called a "system curve." As a step toward enabling better selections of air-handling system components and analyses of common energy efficiency measures such as duct static pressure reset and duct leakage sealing, this paper shows that a simple four-parameter physical model can be used to define system curves. Our model depends on the square of the fan flow, as is commonly considered. It also includes terms that account for linear-like flow resistances such as filters and coils, and for supply duct leakage when damper positions are fixed or are changed independently of static pressure or fan flow. Only two parameters are needed for systems with variable-position supply dampers (e.g., VAV box dampers modulating to control flow). For these systems, reducing or eliminating supply duct leakage does not change the system curve. The parametric system curve may be most useful when applied to field data. Non-linear techniques could be used to fit the curve to fan pressure rise and flow measurements over a range of operating conditions. During design, when measurements are unavailable, one could use duct design calculation tools instead to determine the coefficients.

  14. Investigation of Possible Wellbore Cement Failures During Hydraulic...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Investigation of Possible Wellbore Cement Failures During Hydraulic Fracturing Operations Citation Details In-Document Search Title: Investigation of Possible ...

  15. Quantum Hall effects in a Weyl semimetal: Possible application...

    Office of Scientific and Technical Information (OSTI)

    Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates Title: Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates ...

  16. Isotope research opens new possibilities for cancer treatment

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Isotope research opens new possibilities for cancer treatment Isotope research opens new possibilities for cancer treatment The insights from this study could provide the needed ...

  17. Science on the Hill: Isotope research opens new possibilities...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Isotope research opens new possibilities for cancer treatment Isotope research opens new possibilities for cancer treatment A new study at LANL and in collaboration with Stanford ...

  18. ARM - Possible Benefits of Global Warming on Agriculture

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Possible Benefits of Global Warming on Agriculture Pros and ... increased expenditure of energy and possibly in the face ... the mean plane of the solar system, together with ...

  19. Stability analysis of chromo-natural inflation and possible evasion...

    Office of Scientific and Technical Information (OSTI)

    Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound Prev Next Title: Stability analysis of chromo-natural inflation and possible evasion of ...

  20. Forest products technologies

    SciTech Connect

    None, None

    2006-07-18

    Report highlights DOE Industrial Technology Program co-funded R&D resulting in commercial energy-efficient technologies and emerging technologies helping the forest products industry save energy.

  1. Reexamination of quantum bit commitment: The possible and the impossible

    SciTech Connect

    D'Ariano, Giacomo Mauro; Kretschmann, Dennis; Schlingemann, Dirk; Werner, Reinhard F.

    2007-09-15

    Bit commitment protocols whose security is based on the laws of quantum mechanics alone are generally held to be impossible. We give a strengthened and explicit proof of this result. We extend its scope to a much larger variety of protocols, which may have an arbitrary number of rounds, in which both classical and quantum information is exchanged, and which may include aborts and resets. Moreover, we do not consider the receiver to be bound to a fixed 'honest' strategy, so that 'anonymous state protocols', which were recently suggested as a possible way to beat the known no-go results, are also covered. We show that any concealing protocol allows the sender to find a cheating strategy, which is universal in the sense that it works against any strategy of the receiver. Moreover, if the concealing property holds only approximately, the cheat goes undetected with a high probability, which we explicitly estimate. The proof uses an explicit formalization of general two-party protocols, which is applicable to more general situations, and an estimate about the continuity of the Stinespring dilation of a general quantum channel. The result also provides a natural characterization of protocols that fall outside the standard setting of unlimited available technology and thus may allow secure bit commitment. We present such a protocol whose security, perhaps surprisingly, relies on decoherence in the receiver's laboratory.

  2. Estimating Carbon Supply Curves for Global Forests and Other Land Uses April 2001, Discussion Paper 01-19

    SciTech Connect

    Sedjo, Roger; Sohngen, Brent; Mendelsohn, Robert

    2001-04-05

    This study develops cumulative carbon ''supply curves'' for global forests utilizing a dynamic timber supply model for sequestration of forest carbon. Because the period of concern is the next century, and particular time points within that century, the curves are not traditional Marshallian supply curves or steady-state supply curves. Rather, the focus is on cumulative carbon cost curves (quasi-supply curves) at various points in time over the next 100 years. The research estimates a number of long-term, cumulative, carbon quasi-supply curves under different price scenarios and for different time periods. The curves trace out the relationship between an intertemporal price path for carbon, as given by carbon shadow prices, and the cumulative carbon sequestered from the initiation of the shadow prices, set at 2000, to a selected future year (2010, 2050, 2100). The timber supply model demonstrates that cumulative carbon quasi-supply curves that can be generated through forestry significantly depend on initial carbon prices and expectations regarding the time profile of future carbon prices. Furthermore, long-run quasi-supply curves generated from a constant price will have somewhat different characteristics from quasi-supply curves generated with an expectation of rising carbon prices through time.The ?least-cost? curves vary the time periods under consideration and the time profile of carbon prices. The quasi-supply curves suggest that a policy of gradually increasing carbon prices will generate the least costly supply curves in the shorter periods of a decade or so. Over longer periods of time, however, such as 50 or 100 years, these advantages appear to dissipate.

  3. Vehicle Technologies Office: Resources for Fleet Managers | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Fleet Managers Vehicle Technologies Office: Resources for Fleet Managers Fleet managers will benefit from the lower fuel costs, more reliable fuel prices, and lower emissions that come from using alternative fuels and advanced technologies made possible through the work of the Vehicle Technologies Office (VTO). VTO provides a variety of resources - including more than 100 Clean Cities coalitions nationwide - to help fleet managers find the right technology that meets their needs. In

  4. Jefferson Lab - Technology Transfer

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Welcome to Technology Transfer What is Technology Transfer at Jefferson Lab? Technology transfer and technology partnering are significant mechanisms for DOE laboratories and facilities to engage non-Federal entities to advance technology development and commercialization. Fundamental and applied research at the DOE laboratories have been conduits for technology transfer, collaborating with university and industry colleagues to develop and commercialize products and processes for commercial use.

  5. NETL: SOFC Core Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Core Technology Core Technology-This key technology conducts applied research and development on technologies - exclusive of the cell components - that improve the cost, performance, robustness, reliability, and endurance of SOFC stack or balance-of-plant (BOP) technology. Projects in the Core Technology portfolio focus on interconnects and seals, identify and mitigate stack-related degradation, develop computational tools and models, and conduct laboratory- and bench-scale testing to improve

  6. Morgantown Energy Technology Center, technology summary

    SciTech Connect

    Not Available

    1994-06-01

    This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Morgantown Energy Technology Center (METC). Technologies and processes described have the potential to enhance DOE`s cleanup and waste management efforts, as well as improve US industry`s competitiveness in global environmental markets. METC`s R&D programs are focused on commercialization of technologies that will be carried out in the private sector. META has solicited two PRDAs for EM. The first, in the area of groundwater and soil technologies, resulted in twenty-one contact awards to private sector and university technology developers. The second PRDA solicited novel decontamination and decommissioning technologies and resulted in eighteen contract awards. In addition to the PRDAs, METC solicited the first EM ROA in 1993. The ROA solicited research in a broad range of EM-related topics including in situ remediation, characterization, sensors, and monitoring technologies, efficient separation technologies, mixed waste treatment technologies, and robotics. This document describes these technology development activities.

  7. On the Computation of Integral Curves in Adaptive Mesh Refinement Vector Fields

    SciTech Connect

    Deines, Eduard; Weber, Gunther H.; Garth, Christoph; Van Straalen, Brian; Borovikov, Sergey; Martin, Daniel F.; Joy, Kenneth I.

    2011-06-27

    Integral curves, such as streamlines, streaklines, pathlines, and timelines, are an essential tool in the analysis of vector field structures, offering straightforward and intuitive interpretation of visualization results. While such curves have a long-standing tradition in vector field visualization, their application to Adaptive Mesh Refinement (AMR) simulation results poses unique problems. AMR is a highly effective discretization method for a variety of physical simulation problems and has recently been applied to the study of vector fields in flow and magnetohydrodynamic applications. The cell-centered nature of AMR data and discontinuities in the vector field representation arising from AMR level boundaries complicate the application of numerical integration methods to compute integral curves. In this paper, we propose a novel approach to alleviate these problems and show its application to streamline visualization in an AMR model of the magnetic field of the solar system as well as to a simulation of two incompressible viscous vortex rings merging.

  8. CBI Technology Impact Framework

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    CBI Technology Impact Framework 2014 Building Technologies Office Peer Review Images courtesy CREE, True Manufacturing, A.O. Smith, Bernstein Associates, Cambridge Engineering, ...

  9. Promising Technologies List

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    about promising new and underutilized energy-saving technologies available for Federal and commercial building sector deployment. To identify promising technologies,...

  10. NREL: Technology Transfer - Contacts

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    you may have about NREL's technology transfer opportunities. Partnering with NREL Anne Miller, 303-384-7353 Licensing NREL Technologies Eric Payne, 303-275-3166 Printable Version...

  11. Technology Selection Process

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    technologies, including Technical Advisory Groups and the Energy Efficiency Technology Roadmap. Technical Advisory Groups E3T engages stakeholders of electric power industries in...

  12. Hydropower Program Technology Overview

    SciTech Connect

    Not Available

    2001-10-01

    New fact sheets for the DOE Office of Power Technologies (OPT) that provide technology overviews, description of DOE programs, and market potential for each OPT program area.

  13. Science & Technology - 2016

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    technology 2016 july Science & Technology - 2016 July 3D Printing Could Revolutionize ... Talk about being responsive to the needs of your customers. The NIF & Photon Science team ...

  14. Vehicle Technologies Office: News

    Energy.gov [DOE]

    EERE intends to issue, on behalf of its Fuel Cell Technologies Office, a Funding Opportunity Announcement (FOA) entitled "Fuel Cell Technologies Incubator: Innovations in Fuel Cell and Hydrogen...

  15. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuel Cell Technologies Overview Flow Cell Workshop Washington, DC Dr. Sunita Satyapal & Dr. Dimitrios Papageorgopoulos U.S. Department of Energy Fuel Cell Technologies Program 37...

  16. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuel Cell Seminar Orlando, FL Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 1112011 2 | Fuel Cell Technologies Program Source: US ...

  17. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Fuel Cell Technologies Overview States Energy Advisory Board (STEAB) Washington, DC Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 3...

  18. Technology Resources | Y-12 National Security Complex

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Development Technology Development Within the next decade, proactive, coordinated, and innovative steps are needed to address four critical challenges: Changes in demand driven by population growth, adoption of more energy efficient technologies, dynamic economic conditions, and broader electrification, including possible mass-markets for electric vehicles. Changes in the supply mix (such as renewables, nuclear energy, natural gas, and coal) and location (centralized, distributed, and off-shore)

  19. Sun Materials Technology aka Shanyang Technology | Open Energy...

    OpenEI (Open Energy Information) [EERE & EIA]

    Technology aka Shanyang Technology Jump to: navigation, search Name: Sun Materials Technology (aka Shanyang Technology) Place: Yilan County, Taiwan Product: A US-Taiwan JV company...

  20. GT Solar Technologies formerly GT Equipment Technologies | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    Technologies formerly GT Equipment Technologies Jump to: navigation, search Name: GT Solar Technologies (formerly GT Equipment Technologies) Place: Merrimack, New Hampshire...

  1. Quantum Fuel Systems Technologies Worldwide Inc Quantum Technologies...

    OpenEI (Open Energy Information) [EERE & EIA]

    Fuel Systems Technologies Worldwide Inc Quantum Technologies Jump to: navigation, search Name: Quantum Fuel Systems Technologies Worldwide Inc (Quantum Technologies) Place: Irvine,...

  2. Blue Spark Technologies formerly Thin Battery Technologies Inc...

    OpenEI (Open Energy Information) [EERE & EIA]

    Spark Technologies formerly Thin Battery Technologies Inc Jump to: navigation, search Name: Blue Spark Technologies (formerly Thin Battery Technologies Inc.) Place: Westlake, Ohio...

  3. DOE Vehicle Technologies Program 2009 Merit Review Report - Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technology Integration and Education DOE Vehicle Technologies Program 2009 Merit Review Report - Technology Integration and Education Merit review of DOE Vehicle Technologies ...

  4. 2010 DOE EERE Vehicle Technologies Program Merit Review … Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technology Integration 2010 DOE EERE Vehicle Technologies Program Merit Review Technology Integration Technology integration merit review results PDF icon 2010amr08.pdf ...

  5. On The Lack of Time Dilation Signatures in Gamma-ray Burst Light Curves

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Technical Report: On The Lack of Time Dilation Signatures in Gamma-ray Burst Light Curves Citation Details In-Document Search Title: On The Lack of Time Dilation Signatures in Gamma-ray Burst Light Curves Authors: Kocevski, Daniel ; /KIPAC, Menlo Park ; Petrosian, Vahe ; /Stanford U., Space Sci. Astrophys. Ctr. Publication Date: 2013-02-28 OSTI Identifier: 1074191 Report Number(s): SLAC-PUB-15382 arXiv:1110.6175 DOE Contract Number: AC02-76SF00515

  6. Polarized micro Raman scattering spectroscopy for curved edges of epitaxial graphene

    SciTech Connect

    Islam, Md. Sherajul Makino, T.; Hashimoto, A.; Bhuiyan, A. G.; Tanaka, S.

    2014-12-15

    This letter performed polarized microscopic laser Raman scattering spectroscopy on the curved edges of transferred epitaxial graphene on SiO{sub 2}/Si. The intensity ratio between the parallel and perpendicular polarized D band is evolved, providing a spectroscopy-based technique to probe the atomic-scale edge structures in graphene. A detailed analysis procedure for non-ideal disordered curved edges of graphene is developed combining the atomic-scale zigzag and armchair edge structures along with some point defects. These results could provide valuable information of the realistic edges of graphene at the atomic-scale that can strongly influence the performance of graphene-based nanodevices.

  7. Hyperelliptic curves for multichannel quantum wires and the multichannel Kondo problem

    SciTech Connect

    Fendley, P.; Saleur, H.

    1999-10-01

    We study the current in a multichannel quantum wire and the magnetization in the multichannel Kondo problem. We show that at zero temperature they can be written simply in terms of contour integrals over a (two-dimensional) hyperelliptic curve. This allows one to easily demonstrate the existence of weak-coupling to strong-coupling dualities. In the Kondo problem, the curve is the same for under- and over-screened cases; the only change is in the contour. {copyright} {ital 1999} {ital The American Physical Society}

  8. Low-mass helium star models for type Ib supernovae - Light curves, mixing, and nucleosynthesis

    SciTech Connect

    Shigeyama, Toshikazu; Nomoto, Kenichi; Tsujimoto, Takuji; Hashimoto, Masaki (Tokyo Univ. (Japan) Kyushu Univ., Fukuoka (Japan))

    1990-09-01

    The applicability of theoretical models of He-star explosions to type Ib SN explosions is explored. Particular attention is given to light curves and mixing, Rayleigh-Taylor instabilities and mixing, and nucleosynthesis and the mass of Ni-56. Typical numerical results are presented in graphs, and it is concluded that the explosions of SN 1983N and SN 1983I can be accurately represented in terms of explosions of He stars with M(alpha) of 3-4 solar mass. A strong M(alpha) dependence of light-curve shape, photospheric velocity, and Ni-56 mass is found. 44 refs.

  9. MnO spin-wave dispersion curves from neutron powder diffraction

    SciTech Connect

    Goodwin, Andrew L.; Dove, Martin T.; Tucker, Matthew G.; Keen, David A.

    2007-02-15

    We describe a model-independent approach for the extraction of spin-wave dispersion curves from powder neutron total scattering data. Our approach is based on a statistical analysis of real-space spin configurations to calculate spin-dynamical quantities. The RMCPROFILE implementation of the reverse Monte Carlo refinement process is used to generate a large ensemble of supercell spin configurations from MnO powder diffraction data collected at 100 K. Our analysis of these configurations gives spin-wave dispersion curves for MnO that agree well with those determined independently using neutron triple-axis spectroscopic techniques.

  10. NREL: Technology Transfer - Commercialization Programs

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    303-275-3051. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Licensing Agreements Nondisclosure Agreements...

  11. Plasma processing of large curved surfaces for superconducting rf cavity modification

    SciTech Connect

    Upadhyay, J; Im, Do; Popovi??, S; Valente-Feliciano, A -M; Phillips, L; Vuskovic, L

    2014-12-01

    Plasma based surface modification of niobium is a promising alternative to wet etching of superconducting radio frequency (SRF) cavities. The development of the technology based on Cl2/Ar plasma etching has to address several crucial parameters which influence the etching rate and surface roughness, and eventually, determine cavity performance. This includes dependence of the process on the frequency of the RF generator, gas pressure, power level, the driven (inner) electrode configuration, and the chlorine concentration in the gas mixture during plasma processing. To demonstrate surface layer removal in the asymmetric non-planar geometry, we are using a simple cylindrical cavity with 8 ports symmetrically distributed over the cylinder. The ports are used for diagnosing the plasma parameters and as holders for the samples to be etched. The etching rate is highly correlated with the shape of the inner electrode, radio-frequency (RF) circuit elements, chlorine concentration in the Cl2/Ar gas mixtures, residence time of reactive species and temperature of the cavity. Using cylindrical electrodes with variable radius, large-surface ring-shaped samples and d.c. bias implementation in the external circuit we have demonstrated substantial average etching rates and outlined the possibility to optimize plasma properties with respect to maximum surface processing effect.

  12. Hydrogen delivery technology roadmap

    SciTech Connect

    None, None

    2005-11-15

    Document describing plan for research into and development of hydrogen delivery technology for transportation applications.

  13. Innovative Process Technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Innovative Process Technologies Research Team Members Key Contacts Innovative Process Technologies Innovative Process Technologies is concerned with the development of innovative costeffective technologies that promote efficiency, environmental performance, availability of advanced energy systems, and the development of computational tools that shorten development timelines of advanced energy systems. NETL, working with members of the NETL-Regional University Alliance (NETL-RUA), will focus on

  14. Soil washing technology evaluation

    SciTech Connect

    Suer, A.

    1995-04-01

    Environmental Restoration Engineering (ERE) continues to review innovative, efficient, and cost effective technologies for SRS soil and/or groundwater remediation. As part of this effort, this technical evaluation provides review and the latest information on the technology for SRS soil remediation. Additional technology evaluation reports will be issued periodically to update these reports. The purpose of this report is to review the soil washing technology and its potential application to SRS soil remediation. To assess whether the Soil Washing technology is a viable option for SRS soil remediation, it is necessary to review the technology/process, technology advantages/limitations, performance, applications, and cost analysis.

  15. Possibility of using cylindrical ionization chambers for percent depth-dose measurements in clinical electron beams

    SciTech Connect

    Ono, Takeshi; Araki, Fujio; Yoshiyama, Fumiaki

    2011-08-15

    Purpose: This study investigated the possibility of using cylindrical ionization chambers for percent depth-dose (PDD) measurements in high-energy clinical electron beams. Methods: The cavity correction factor, P{sub cav}, for cylindrical chambers with various diameters was calculated as a function of depth from the surface to R{sub 50}, in the energy range of 6-18 MeV electrons with the EGSnrc C ++ -based user-code CAVITY. The results were compared with those for IBA NACP-02 and PTW Roos parallel-plate ionization chambers. The effective point of measurement (EPOM) for the cylindrical chamber and the parallel-plate chamber was positioned according to the IAEA TRS-398 code of practice. The overall correction factor, P{sub Q}, and the percent depth-ionization (PDI) curve for a PTW30013 Farmer-type chamber were also compared with those of NACP-02 and Roos chambers. Results: The P{sub cav} values at depths between the surface and R{sub 50} for cylindrical chambers were all lower than those with parallel-plate chambers. However, the variation in depth for cylindrical chambers equal to or less than 4 mm in diameter was equivalent to or smaller than that for parallel-plate chambers. The P{sub Q} values for the PTW30013 chamber mainly depended on P{sub cav}, and for parallel-plate chambers depended on the wall correction factor, P{sub wall}, rather than P{sub cav}. P{sub Q} at depths from the surface to R{sub 50} for the PTW30013 chamber was consequently a lower value than that with parallel-plate chambers. However, the variation in depth was equivalent to that of parallel-plate chambers at electron energies equal to or greater than 9 MeV. The shift to match calculated PDI curves for the PTW30013 chamber and water (perturbation free) varied from 0.65 to 0 mm between 6 and 18 MeV beams. Similarly, the shifts for NACP-02 and Roos chambers were 0.5-0.6 mm and 0.2-0.3 mm, respectively, and were nearly independent of electron energy. Conclusions: Calculated PDI curves for PTW

  16. Nondestructive method and apparatus for imaging grains in curved surfaces of polycrystalline articles

    DOEpatents

    Carpenter, D.A.

    1995-05-23

    A nondestructive method, and associated apparatus, are provided for determining the grain flow of the grains in a convex curved, textured polycrystalline surface. The convex, curved surface of a polycrystalline article is aligned in a horizontal x-ray diffractometer and a monochromatic, converging x-ray beam is directed onto the curved surface of the polycrystalline article so that the converging x-ray beam is diffracted by crystallographic planes of the grains in the polycrystalline article. The diffracted x-ray beam is caused to pass through a set of horizontal, parallel slits to limit the height of the beam and thereafter. The linear intensity of the diffracted x-ray is measured, using a linear position sensitive proportional counter, as a function of position in a direction orthogonal to the counter so as to generate two dimensional data. An image of the grains in the curved surface of the polycrystalline article is provided based on the two-dimensional data. 7 Figs.

  17. Application of the normalization data analysis technique for single specimen R-curve determination

    SciTech Connect

    Porr, W.C.; Mills, W.J.

    1999-03-01

    The authors conclude that the normalization technique for single specimen R-curve and J{sub IC} determination can be very effective. Much like EPD, this technique requires some user interpretation/judgement during data analysis and may be difficult to standardize or fully automate even with strict analysis rules.

  18. NATIONAL ENERGY TECHNOLOGY LABORATORY Technology Transfer

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The unique technology allows operators to optimize the processing to improve material yield, decrease energy use, and improve safety systems. Specialty metals, such as titanium or ...

  19. Thermally Activated Technologies Technology Roadmap, May 2003...

    Energy.gov [DOE] (indexed site)

    technologies for converting America's wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. ...

  20. NATIONAL ENERGY TECHNOLOGY LABORATORY Technology Transfer Novel...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Novel PlatinumChromium Alloy for the Manufacture of Improved Coronary Stents Success Story NETL Technology Transfer Group techtransfer@netl.doe.gov Contact Partners A coronary...

  1. National Energy Technology Laboratory Technologies Available...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels ...

  2. Biodetection Technologies for First Responders: 2014 Edition

    SciTech Connect

    Ozanich, Richard M.; Baird, Cheryl L.; Bartholomew, Rachel A.; Colburn, Heather A.; Straub, Tim M.; Bruckner-Lea, Cindy J.

    2014-03-28

    This report summarizes commercially-available, hand-portable technologies that can be used by first responders in the field. This is not meant to be an exhaustive list, nor an endorsement of any technology described herein. Rather, this report is meant to provide useful information about available technologies to help end-users make informed decisions about biodetection technology procurement and use. Information listed in this report is primarily vendor-provided; however, where possible it has been supplemented with additional information obtained from publications, reports, and websites. Manufacturers were given the chance to review summaries of their technologies from August through November 2013 to verify the accuracy of technical specifications, available references, and pricing.

  3. EXPLORING THE VARIABLE SKY WITH LINEAR. III. CLASSIFICATION OF PERIODIC LIGHT CURVES

    SciTech Connect

    Palaversa, Lovro; Eyer, Laurent; Rimoldini, Lorenzo; Ivezi?, eljko; Loebman, Sarah; Hunt-Walker, Nicholas; VanderPlas, Jacob; Westman, David; Becker, Andrew C.; Rudjak, Domagoj; Sudar, Davor; Boi?, Hrvoje; Galin, Mario; Kroflin, Andrea; Mesari?, Martina; Munk, Petra; Vrbanec, Dijana; Sesar, Branimir; Stuart, J. Scott; Srdo?, Gregor; and others

    2013-10-01

    We describe the construction of a highly reliable sample of ?7000 optically faint periodic variable stars with light curves obtained by the asteroid survey LINEAR across 10,000 deg{sup 2} of the northern sky. The majority of these variables have not been cataloged yet. The sample flux limit is several magnitudes fainter than most other wide-angle surveys; the photometric errors range from ?0.03 mag at r = 15 to ?0.20 mag at r = 18. Light curves include on average 250 data points, collected over about a decade. Using Sloan Digital Sky Survey (SDSS) based photometric recalibration of the LINEAR data for about 25 million objects, we selected ?200,000 most probable candidate variables with r < 17 and visually confirmed and classified ?7000 periodic variables using phased light curves. The reliability and uniformity of visual classification across eight human classifiers was calibrated and tested using a catalog of variable stars from the SDSS Stripe 82 region and verified using an unsupervised machine learning approach. The resulting sample of periodic LINEAR variables is dominated by 3900 RR Lyrae stars and 2700 eclipsing binary stars of all subtypes and includes small fractions of relatively rare populations such as asymptotic giant branch stars and SX Phoenicis stars. We discuss the distribution of these mostly uncataloged variables in various diagrams constructed with optical-to-infrared SDSS, Two Micron All Sky Survey, and Wide-field Infrared Survey Explorer photometry, and with LINEAR light-curve features. We find that the combination of light-curve features and colors enables classification schemes much more powerful than when colors or light curves are each used separately. An interesting side result is a robust and precise quantitative description of a strong correlation between the light-curve period and color/spectral type for close and contact eclipsing binary stars (? Lyrae and W UMa): as the color-based spectral type varies from K4 to F5, the median

  4. Statistical Analyses for Probabilistic Assessments of the Reactor Pressure Vessel Structural Integrity: Building a Master Curve on an Extract of the 'Euro' Fracture Toughness Dataset, Controlling Statistical Uncertainty for Both Mono-Temperature and multi-temperature tests

    SciTech Connect

    Josse, Florent; Lefebvre, Yannick; Todeschini, Patrick; Turato, Silvia; Meister, Eric

    2006-07-01

    Assessing the structural integrity of a nuclear Reactor Pressure Vessel (RPV) subjected to pressurized-thermal-shock (PTS) transients is extremely important to safety. In addition to conventional deterministic calculations to confirm RPV integrity, Electricite de France (EDF) carries out probabilistic analyses. Probabilistic analyses are interesting because some key variables, albeit conventionally taken at conservative values, can be modeled more accurately through statistical variability. One variable which significantly affects RPV structural integrity assessment is cleavage fracture initiation toughness. The reference fracture toughness method currently in use at EDF is the RCCM and ASME Code lower-bound K{sub IC} based on the indexing parameter RT{sub NDT}. However, in order to quantify the toughness scatter for probabilistic analyses, the master curve method is being analyzed at present. Furthermore, the master curve method is a direct means of evaluating fracture toughness based on K{sub JC} data. In the framework of the master curve investigation undertaken by EDF, this article deals with the following two statistical items: building a master curve from an extract of a fracture toughness dataset (from the European project 'Unified Reference Fracture Toughness Design curves for RPV Steels') and controlling statistical uncertainty for both mono-temperature and multi-temperature tests. Concerning the first point, master curve temperature dependence is empirical in nature. To determine the 'original' master curve, Wallin postulated that a unified description of fracture toughness temperature dependence for ferritic steels is possible, and used a large number of data corresponding to nuclear-grade pressure vessel steels and welds. Our working hypothesis is that some ferritic steels may behave in slightly different ways. Therefore we focused exclusively on the basic french reactor vessel metal of types A508 Class 3 and A 533 grade B Class 1, taking the sampling

  5. TECHNOLOGY TRANSFER COORDINATORS

    Office of Energy Efficiency and Renewable Energy (EERE)

    Mark Hartney, Director of the Office of Strategic Planning, SLAC, discussed technology transfer at SLAC. Bob Hwang, Director, Transportation Energy Center, Combustion Research Facility, SNL presented on technology transfer at SNL. Elsie Quaite-Randall, Chief Technology Transfer Officer, Innovation and Partnerships Office, LBNL, presented on technology transfer at LBNL. Richard A. Rankin, Director, Industrial Partnerships Office and Economic Development Office (Interim), LLNL, presented on technology transfer at LLNL.

  6. Materials Science and Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PADSTE » ADEPS » MST Materials Science and Technology Providing world-leading, innovative, and agile materials science and technology solutions for national security missions. MST is metallurgy. The Materials Science and Technology Division provides scientific and technical leadership in materials science and technology for Los Alamos National Laboratory. READ MORE MST is engineered materials. The Materials Science and Technology Division provides scientific and technical leadership in

  7. NATIONAL ENERGY TECHNOLOGY LABORATORY Technology Transfer NETL Technology for Safer,

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology for Safer, Cleaner Corrosion-Protecting Metal Coatings Licensed by Pittsburgh Start-Up Success Story Corrosion-related issues cost the U.S. economy $276 billion a year. The Energy Department's National Energy Technology Laboratory (NETL) teamed up with Carnegie Mellon University (CMU) to create a revolutionary, cost-effective technology to reduce that impact-work that resulted in the creation of a new CMU/NETL spin-off that signed a licensing agreement with the laboratory in June. The

  8. CSI 2264: characterizing accretion-burst dominated light curves for young stars in NGC 2264

    SciTech Connect

    Stauffer, John; Cody, Ann Marie; Rebull, Luisa; Carey, Sean; Baglin, Annie; Alencar, Silvia; Hillenbrand, Lynne A.; Carpenter, John; Findeisen, Krzysztof; Venuti, Laura; Bouvier, Jerome; Plavchan, Peter; Terebey, Susan; Morales-Caldern, Mara; Micela, Giusi; Flaccomio, Ettore; Song, Inseok; Gutermuth, Rob; Hartmann, Lee; and others

    2014-04-01

    Based on more than four weeks of continuous high-cadence photometric monitoring of several hundred members of the young cluster NGC 2264 with two space telescopes, NASA's Spitzer and the CNES CoRoT (Convection, Rotation, and planetary Transits), we provide high-quality, multi-wavelength light curves for young stellar objects whose optical variability is dominated by short-duration flux bursts, which we infer are due to enhanced mass accretion rates. These light curves show many briefseveral hours to one daybrightenings at optical and near-infrared wavelengths with amplitudes generally in the range of 5%-50% of the quiescent value. Typically, a dozen or more of these bursts occur in a 30 day period. We demonstrate that stars exhibiting this type of variability have large ultraviolet (UV) excesses and dominate the portion of the u g versus g r color-color diagram with the largest UV excesses. These stars also have large H? equivalent widths, and either centrally peaked, lumpy H? emission profiles or profiles with blueshifted absorption dips associated with disk or stellar winds. Light curves of this type have been predicted for stars whose accretion is dominated by Rayleigh-Taylor instabilities at the boundary between their magnetosphere and inner circumstellar disk, or where magneto-rotational instabilities modulate the accretion rate from the inner disk. Among the stars with the largest UV excesses or largest H? equivalent widths, light curves with this type of variability greatly outnumber light curves with relatively smooth sinusoidal variations associated with long-lived hot spots. We provide quantitative statistics for the average duration and strength of the accretion bursts and for the fraction of the accretion luminosity associated with these bursts.

  9. Exact solutions of (n+1)-dimensional Yang-Mills equations in curved space-time

    SciTech Connect

    Sanchez-Monroy, J.A.; Quimbay, C.J.

    2012-09-15

    In the context of a semiclassical approach where vectorial gauge fields can be considered as classical fields, we obtain exact static solutions of the SU(N) Yang-Mills equations in an (n+1)-dimensional curved space-time, for the cases n=1,2,3. As an application of the results obtained for the case n=3, we consider the solutions for the anti-de Sitter and Schwarzschild metrics. We show that these solutions have a confining behavior and can be considered as a first step in the study of the corrections of the spectra of quarkonia in a curved background. Since the solutions that we find in this work are valid also for the group U(1), the case n=2 is a description of the (2+1) electrodynamics in the presence of a point charge. For this case, the solution has a confining behavior and can be considered as an application of the planar electrodynamics in a curved space-time. Finally we find that the solution for the case n=1 is invariant under a parity transformation and has the form of a linear confining solution. - Highlights: Black-Right-Pointing-Pointer We study exact static confining solutions of the SU(N) Yang-Mills equations in an (n+1)-dimensional curved space-time. Black-Right-Pointing-Pointer The solutions found are a first step in the study of the corrections on the spectra of quarkonia in a curved background. Black-Right-Pointing-Pointer A expression for the confinement potential in low dimensionality is found.

  10. SYNTHETIC OFF-AXIS LIGHT CURVES FOR LOW-ENERGY GAMMA-RAY BURSTS

    SciTech Connect

    Van Eerten, Hendrik J.; MacFadyen, Andrew I.

    2011-06-01

    We present results for a large number of gamma-ray burst (GRB) afterglow light curve calculations, done by combining high-resolution two-dimensional relativistic hydrodynamics simulations using RAM with a synchrotron radiation code. Results were obtained for jet energies, circumburst medium densities, and jet angles typical for short and underluminous GRBs, different observer angles, and observer frequencies from low radio (75 MHz) to X-ray (1.5 keV). We summarize the light curves through smooth power-law fits with up to three breaks, covering jet breaks for small observer angles, the rising phase for large observer angles, and the rise and decay of the counterjet. All light curve data are publicly available on the Web. The data can be used for model fits to observational data and as an aid for predicting observations by future telescopes such as LOFAR or the Square Kilometer Array and will benefit the study of neutron star mergers using different channels, such as gravitational-wave observations with LIGO or Virgo. For small observer angles, we find jet break times that vary significantly between frequencies, with the break time in the radio substantially postponed. Increasing the observer angle also postpones the measured jet break time. The rising phase of the light curve for large observer angle has a complex shape that cannot always be summarized by a simple power law. Except for very large observer angles, the counterjet is a distinct feature in the light curve, although in practice the signal will be exceedingly difficult to observe by then.

  11. Characterizing the V-band light-curves of hydrogen-rich type II supernovae

    SciTech Connect

    Anderson, Joseph P.; González-Gaitán, Santiago; Hamuy, Mario; Gutiérrez, Claudia P.; Antezana, Roberto; De Jaeger, Thomas; Förster, Francisco; González, Luis; Stritzinger, Maximilian D.; Contreras, Carlos; Olivares E, Felipe; Phillips, Mark M.; Campillay, Abdo; Castellón, Sergio; Hsiao, Eric; Schulze, Steve; Bolt, Luis; Folatelli, Gastón; Freedman, Wendy L.; Krzemiński, Wojtek; and others

    2014-05-01

    We present an analysis of the diversity of V-band light-curves of hydrogen-rich type II supernovae. Analyzing a sample of 116 supernovae, several magnitude measurements are defined, together with decline rates at different epochs, and time durations of different phases. It is found that magnitudes measured at maximum light correlate more strongly with decline rates than those measured at other epochs: brighter supernovae at maximum generally have faster declining light-curves at all epochs. We find a relation between the decline rate during the 'plateau' phase and peak magnitudes, which has a dispersion of 0.56 mag, offering the prospect of using type II supernovae as purely photometric distance indicators. Our analysis suggests that the type II population spans a continuum from low-luminosity events which have flat light-curves during the 'plateau' stage, through to the brightest events which decline much faster. A large range in optically thick phase durations is observed, implying a range in progenitor envelope masses at the epoch of explosion. During the radioactive tails, we find many supernovae with faster declining light-curves than expected from full trapping of radioactive emission, implying low mass ejecta. It is suggested that the main driver of light-curve diversity is the extent of hydrogen envelopes retained before explosion. Finally, a new classification scheme is introduced where hydrogen-rich events are typed as simply 'SN II' with an 's {sub 2}' value giving the decline rate during the 'plateau' phase, indicating its morphological type.

  12. A LIGHT CURVE ANALYSIS OF CLASSICAL NOVAE: FREE-FREE EMISSION VERSUS PHOTOSPHERIC EMISSION

    SciTech Connect

    Hachisu, Izumi; Kato, Mariko E-mail: mariko@educ.cc.keio.ac.jp

    2015-01-10

    We analyzed light curves of seven relatively slower novae, PW Vul, V705 Cas, GQ Mus, RR Pic, V5558 Sgr, HR Del, and V723 Cas, based on an optically thick wind theory of nova outbursts. For fast novae, free-free emission dominates the spectrum in optical bands rather than photospheric emission, and nova optical light curves follow the universal decline law. Faster novae blow stronger winds with larger mass-loss rates. Because the brightness of free-free emission depends directly on the wind mass-loss rate, faster novae show brighter optical maxima. In slower novae, however, we must take into account photospheric emission because of their lower wind mass-loss rates. We calculated three model light curves of free-free emission, photospheric emission, and their sum for various white dwarf (WD) masses with various chemical compositions of their envelopes and fitted reasonably with observational data of optical, near-IR (NIR), and UV bands. From light curve fittings of the seven novae, we estimated their absolute magnitudes, distances, and WD masses. In PW Vul and V705 Cas, free-free emission still dominates the spectrum in the optical and NIR bands. In the very slow novae, RR Pic, V5558 Sgr, HR Del, and V723 Cas, photospheric emission dominates the spectrum rather than free-free emission, which makes a deviation from the universal decline law. We have confirmed that the absolute brightnesses of our model light curves are consistent with the distance moduli of four classical novae with known distances (GK Per, V603 Aql, RR Pic, and DQ Her). We also discussed the reason why the very slow novae are about ∼1 mag brighter than the proposed maximum magnitude versus rate of decline relation.

  13. Pollution prevention drives membrane technologies

    SciTech Connect

    Cartwright, P.

    1994-09-01

    Currently, such membrane technologies as crossflow micro-, ultra-, and nanofiltration, reverse osmosis, electrodialysis and pervaporation offer interesting possibilities, each tackling a specific aspect of pollution control. Although none of these methods can, on its own, alter or break down pollutants, each has the ability to separate, fractionate and concentrate contaminants. In addition, they: permit continuous, uninterrupted processing via automatic control; use far less energy than traditional treatment methods; require only minimal temperature changes and no chemical additives; exert no impact on contaminants, and keep them physically separated from the stream; and are easy to install, either alone or combined with other treatment systems, since they are modular and contain few moving parts. The paper discusses the benefits and disadvantages of membrane technology and recommends thorough testing.

  14. Analysis of first order reversal curves in the thermal hysteresis of spin-crossover nanoparticles within the mechanoelastic model

    SciTech Connect

    Stoleriu, Laurentiu E-mail: cristian.enachescu@uaic.ro; Stancu, Alexandru; Enachescu, Cristian E-mail: cristian.enachescu@uaic.ro; Chakraborty, Pradip; Hauser, Andreas

    2015-05-07

    The recently obtained spin-crossover nanoparticles are possible candidates for applications in the recording media industry as materials for data storage, or as pressure and temperature sensors. For these applications, the intermolecular interactions and interactions between spin-crossover nanoparticles are extremely important, as they may be essential factors in triggering the transition between the two stable phases: the high-spin and low-spin ones. In order to find correlations between the distributions in size and interactions and the transition temperatures distribution, we apply the FORC (First Order Reversal Curves) method, using simulations based on a mechanoelastic model applied to 2D triangular lattices composed of molecules linked by springs and embedded in a surfactant. We consider two Gaussian distributions: one is the size of the nanoparticles and another is the elastic interactions between edge spin-crossover molecules and the surfactant molecules. In order to disentangle the kinetic and non-kinetic parts of the FORC distributions, we compare the results obtained for different temperature sweeping rates. We also show that the presence of few larger particles in a distribution centered around much smaller particles dramatically increases the hysteresis width.

  15. SHARED TECHNOLOGY TRANSFER PROGRAM

    SciTech Connect

    GRIFFIN, JOHN M. HAUT, RICHARD C.

    2008-03-07

    The program established a collaborative process with domestic industries for the purpose of sharing Navy-developed technology. Private sector businesses were educated so as to increase their awareness of the vast amount of technologies that are available, with an initial focus on technology applications that are related to the Hydrogen, Fuel Cells and Infrastructure Technologies (Hydrogen) Program of the U.S. Department of Energy. Specifically, the project worked to increase industry awareness of the vast technology resources available to them that have been developed with taxpayer funding. NAVSEA-Carderock and the Houston Advanced Research Center teamed with Nicholls State University to catalog NAVSEA-Carderock unclassified technologies, rated the level of readiness of the technologies and established a web based catalog of the technologies. In particular, the catalog contains technology descriptions, including testing summaries and overviews of related presentations.

  16. Medical and biofuel advances possible with new gene regulation...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Medical and biofuel advances possible with new gene regulation tool Medical and biofuel advances possible with new gene regulation tool The key is a tunable switch made from a ...

  17. Marine and Hydrokinetic Technology Glossary

    Office of Energy Efficiency and Renewable Energy (EERE)

    Learn about the basic technologies and key terms used to describe marine and hydrokinetic technologies.

  18. Technology Transfer through the Pipeline and Other Channels: Preprint

    SciTech Connect

    Benner, J.; Hulstrom, R.; Sheldon, P.

    2001-10-01

    Presented at the 2001 NCPV Program Review Meeting: Examines some success stories of tech transfer and lessons learned from these experiences that point to possible improvements to expedite transfer to future technologies.

  19. Impact of Smart Grid Technologies on Peak Load to 2050 | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    URI: cleanenergysolutions.orgcontentimpact-smart-grid-technologies-peak-l Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible...

  20. FY04 Engineering Technology Reports Technology Base

    SciTech Connect

    Sharpe, R M

    2005-01-27

    Lawrence Livermore National Laboratory's Engineering Directorate has two primary discretionary avenues for its investment in technologies: the Laboratory Directed Research and Development (LDRD) program and the ''Tech Base'' program. This volume summarizes progress on the projects funded for technology-base efforts in FY2004. The Engineering Technical Reports exemplify Engineering's more than 50-year history of researching and developing (LDRD), and reducing to practice (technology-base) the engineering technologies needed to support the Laboratory's missions. Engineering has been a partner in every major program and project at the Laboratory throughout its existence, and has prepared for this role with a skilled workforce and technical resources. This accomplishment is well summarized by Engineering's mission: ''Enable program success today and ensure the Laboratory's vitality tomorrow''. LDRD is the vehicle for creating those technologies and competencies that are cutting edge. These require a significant level of research or contain some unknown that needs to be fully understood. Tech Base is used to apply those technologies, or adapt them to a Laboratory need. The term commonly used for Tech Base projects is ''reduction to practice''. Tech Base projects effect the natural transition to reduction-to-practice of scientific or engineering methods that are well understood and established. They represent discipline-oriented, core competency activities that are multi-programmatic in application, nature, and scope. The objectives of technology-base funding include: (1) the development and enhancement of tools and processes to provide Engineering support capability, such as code maintenance and improved fabrication methods; (2) support of Engineering science and technology infrastructure, such as the installation or integration of a new capability; (3) support for technical and administrative leadership through our technology Centers; and (4) the initial scoping and

  1. Vehicle Technologies Program Implementation

    SciTech Connect

    none,

    2009-06-19

    The Vehicle Technologies Program takes a systematic approach to Program implementation. Elements of this approach include the evaluation of new technologies, competitive selection of projects and partners, review of Program and project improvement, project tracking, and portfolio management and adjustment.

  2. Photovoltaics: A Diverse Technology

    Office of Energy Efficiency and Renewable Energy (EERE)

    This video illustrates the diversity of photovoltaic (PV) technology, which is due to innovations in PV materials, reductions in manufacturing costs, and expanding uses of the technology. A brief...

  3. SSL TECHNOLOGY DEVELOPMENT WORKSHOP

    Energy.gov [DOE]

    Rapid advances in SSL technology make it easy to forget that this technology is still at a relatively early stage of development, and much of its potential remains untapped. The 10th annual DOE SSL...

  4. SSL Technology Development Workshop

    Energy.gov [DOE]

    Rapid advances make it easy to forget that SSL technology is still at a relatively early stage of development, and much of its potential remains untapped. The 10th annual DOE SSL Technology...

  5. Technology Readiness Assessment Guide

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    2011-09-15

    The Guide assists individuals and teams involved in conducting Technology Readiness Assessments (TRAs) and developing Technology Maturation Plans (TMPs) for the DOE capital asset projects subject to DOE O 413.3B. Supersedes DOE G 413.3-4.

  6. Technology Deployment Case Studies

    Energy.gov [DOE]

    Find technology deployment case studies below. Click on each individual project link to see the full case study. You can also view a map of technology deployment case studies.

  7. Technology Transfer Ombudsman Program

    Energy.gov [DOE]

    The Technology Transfer Commercialization Act of 2000, Public Law 106-404 (PDF) was enacted in November 2000.  Pursuant to Section 11, Technology Partnerships Ombudsman, each DOE national...

  8. Tag: technology transfer

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    17all en CNS, UT chemical sensing technology wins R&D 100 Award http:www.y12.doe.govnewspress-releasescns-ut-chemical-sensing-technology-wins-rd-100-award

  9. Experimental study of characteristic curves of centrifugal pumps working as turbines in different specific speeds

    SciTech Connect

    Derakhshan, Shahram; Nourbakhsh, Ahmad

    2008-01-15

    Pump manufacturers do not normally provide the characteristic curves of their pumps working as turbines. Therefore, establishing a correlation between the performances of direct (pump) and reverse (turbine) modes is essential in selecting the proper machine. In this paper, several centrifugal pumps (N{sub s} < 60 (m, m{sup 3}/s)) were tested as turbines. Using experimental data, some relations were derived to predict the best efficiency point of a pump working as a turbine, based on pump hydraulic characteristics. Validity of the presented method was shown using some referenced experimental data. Two equations were presented to estimate the complete characteristic curves of centrifugal pumps as turbines based on their best efficiency point. Deviations of suggested method from experimental data were considered and discussed. Finally, a procedure was presented for selecting a suitable pump to work as a turbine in a small hydro-site. (author)

  10. Study The Effect Of Curvature On Spring Back Of Double Curved Steel Sheet Using New Method

    SciTech Connect

    Parsa, M. H.; Kazemi, M.; Pishbin, H.

    2007-05-17

    Spring back is one of main reason for inaccuracy of sheet press formed product. Therefore; prediction of spring back is very important for production of precise products. To calculate the amount of spring back many successful attempts have been done, but unfortunately; most of them belong to the simple cases such as single curved U or V, bending of sheet metals. In this study, an improved yield criterion proposed by Yoshida, have been incorporated in a new formulation for prediction of the spring back in a double curved sheet metal. This criterion is capable to reveal the influence of transient Baushinger effect and work hardening stagnation on spring back analysis. Finally; the effect of some geometrical parameters such as thickness, and curvatures radius will be discussed.

  11. First-Order Reversal Curve Probing of Spatially Resolved Polarization Dynamics in Ferroelectric Nanocapacitors

    SciTech Connect

    Kim, Yunseok; Kumar, Amit; Jesse, Stephen; Kalinin, Sergei V

    2011-01-01

    Spatially resolved polarization switching in ferroelectric nanocapacitors was studied on the sub-25 nm scale using the first-order reversal curve (FORC) method. The chosen capacitor geometry allows both a high-veracity observation of the ferroelastic domain structure and the mapping of polarization switching in a uniform field, synergistically combining microstructural observations and probing of uniform-field polarization responses as relevant to device operation. A classical Kolmogorov-Avrami-Ishibashi model has been adapted to the voltage domain and the individual switching dynamics of the FORC response curves are well approximated by the adapted model. The comparison with microstructures suggests a strong spatial variability of the switching dynamics inside the nanocapacitors.

  12. Benchmarking of Competitive Technologies

    Energy.gov [DOE]

    2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

  13. Information Technology | Jefferson Lab

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Information Technology The Information Technology Division uses cutting-edge technology to provide high-quality services and capabilities that enable the lab to pursue its research mission in support of the nation's scientific agenda. Leading the division is the chief information officer. The CIO is responsible for providing information from the labs information technology systems to Jefferson Lab management, the overall IT vision, the information architecture for computing and IT, and oversight

  14. TECHNOLOGY READINESS ASSESSMENT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    DECEMBER 2012 Pathway for readying the next generation of affordable clean energy technology -Carbon Capture, Utilization, and Storage (CCUS) 2012 TECHNOLOGY READINESS ASSESSMENT -OVERVIEW 2 2012 TECHNOLOGY READINESS ASSESSMENT-OVERVIEW 2012 TECHNOLOGY READINESS ASSESSMENT-OVERVIEW 3 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any

  15. Robert Jilek: Pellion Technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Robert Jilek: Pellion Technologies Alumni Link: Opportunities, News and Resources for Former Employees Latest Issue:September 2015 all issues All Issues » submit Robert Jilek: Pellion Technologies Senior research scientist at eastern energy storage startup September 3, 2014 Robert Jilek Robert Jilek Contact Linda Anderman Email Robert Jilek Jilek is currently with Pellion Technologies Bob Jilek is currently spending part of his time in a management role at Pellion Technologies in the Cambridge

  16. Technology Integration Overview

    Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  17. Technology Transfer | NREL

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Transfer Through partnerships and licensing of its intellectual property rights, NREL seeks to reduce private sector risk in early stage technologies, enable investment in the adoption of renewable energy and energy efficiency technologies, reduce U.S. reliance on foreign energy sources, reduce carbon emissions, and increase U.S. industrial competitiveness. Text Version View a summary of our Fiscal Year 2015 technology partnership agreements. Learn more about our partnership

  18. Consumer Vehicle Technology Data

    Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  19. Advanced Propulsion Technology Strategy

    Energy.gov [DOE]

    GM is also developing new classes of electrically driven vehicles, leveraging technology first used in their hybrids.

  20. Membrane Technology Workshop

    Energy.gov [DOE]

    Presentation by Charles Page (Air Products & Chemicals, Inc.) for the Membrane Technology Workshop held July 24, 2012

  1. Benchmarking of Competitive Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Laboratory * National Renewable Energy Laboratory * ORNL Team Members - Steve Campbell, Chester Coomer - Andy Wereszczak, Materials Science and Technology Division Partners ...

  2. Geothermal Energy & Drilling Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Energy & Drilling Technology - Sandia Energy Energy Search Icon Sandia Home Locations ... Atmospheric Radiation Measurement Climate Reasearch Facility Geomechanics and Drilling ...

  3. Building Technologies Program Presentation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Renewable Energy Building Technologies Program Jerry Dion Acting Program Manager Building Technologies Program State Energy Advisory Board Meeting October 17, 2007 The investment in Buildings R&D yielded an ROI of 15:1 from 1978 to 2000 The Buildings Technologies Program researches and Energy Efficiency & deploys new technologies to make homes and Renewable Energy commercial buildings more affordable, energy efficient, and better performing The investment in Buildings R&D yielded an

  4. Technology Performance Exchange

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Meeting * Open invitation for peer review 12 | Building Technologies Office ... data flows with Building Component Library * Seamless information flow from ...

  5. Geothermal Technologies Program Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Jay Nathwani Acting Program Manager Geothermal Technologies Program Office of Energy Efficiency and Renewable Energy The Geothermal Technologies Program Overview May 18 2010 Energy Efficiency & Renewable Energy eere.energy.gov Geothermal Technologies Program (GTP) Program Topic Areas *Low Temperature, Geopressured and Coproduced Resources *Innovative Exploration Technologies National Goals *Economy Putting people to work in the near- term, and in the future *Security Developing and expanding

  6. Carbon Fiber Technology Facility

    Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  7. Dispersion curves from short-time molecular dynamics simulation. 1. Diatomic chain results

    SciTech Connect

    Noid, D.W.; Broocks, B.T.; Gray, S.K.; Marple, S.L.

    1988-06-16

    The multiple signal classification method (MUSIC) for frequency estimation is used to compute the frequency dispersion curves of a diatomic chain from the time-dependent structure factor. In this paper, the authors demonstrate that MUSIC can accurately determine the frequencies from very short time trajectories. MUSIC is also used to show how the frequencies can vary in time, i.e., along a trajectory. The method is ideally suited for analyzing molecular dynamics simulations of large systems.

  8. CfA3: 185 TYPE Ia SUPERNOVA LIGHT CURVES FROM THE CfA

    SciTech Connect

    Hicken, Malcolm; Challis, Peter; Kirshner, Robert P.; Bakos, Gaspar; Berlind, Perry; Brown, Warren R.; Caldwell, Nelson; Calkins, Mike; Cho, Richard; Contreras, Maria; Jha, Saurabh; Matheson, Tom; Modjaz, Maryam; Rest, Armin; Michael Wood-Vasey, W.; Barton, Elizabeth J.; Bragg, Ann; Briceno, Cesar; Ciupik, Larry; Dendy, Kristi-Concannon E-mail: kirshner@cfa.harvard.edu

    2009-07-20

    We present multiband photometry of 185 type-Ia supernovae (SNe Ia), with over 11,500 observations. These were acquired between 2001 and 2008 at the F. L. Whipple Observatory of the Harvard-Smithsonian Center for Astrophysics (CfA). This sample contains the largest number of homogeneously observed and reduced nearby SNe Ia (z {approx}< 0.08) published to date. It more than doubles the nearby sample, bringing SN Ia cosmology to the point where systematic uncertainties dominate. Our natural system photometry has a precision of {approx}<0.02 mag in BVRIr'i' and {approx}<0.04 mag in U for points brighter than 17.5 mag. We also estimate a systematic uncertainty of 0.03 mag in our SN Ia standard system BVRIr'i' photometry and 0.07 mag for U. Comparisons of our standard system photometry with published SN Ia light curves and comparison stars, where available for the same SN, reveal agreement at the level of a few hundredths mag in most cases. We find that 1991bg-like SNe Ia are sufficiently distinct from other SNe Ia in their color and light-curve-shape/luminosity relation that they should be treated separately in light-curve/distance fitter training samples. The CfA3 sample will contribute to the development of better light-curve/distance fitters, particularly in the few dozen cases where near-infrared photometry has been obtained and, together, can help disentangle host-galaxy reddening from intrinsic supernova color, reducing the systematic uncertainty in SN Ia distances due to dust.

  9. J-R curve characterization of irradiated low upper shelf welds

    SciTech Connect

    Hiser, A.L.; Loss, F.J.; Menke, B.H.

    1984-04-01

    This investigation provides a data base of J-R curve trends from irradiated A 508 and A 533-B weld metals exhibiting low upper shelf Charpy-V (C/sub v/) energy. These welds were made with Linde 80 flux of the same lots used for vessels currently in service. These materials exhibited postirradiation C/sub v/ upper shelf energies of 58 J to 80 J. Compact toughness (CT) specimens of four different sizes (0.5T- to 4T-CT) were characterized. These specimens were irradiated to a fluence of approx. 1 x 10/sup 19/ n/cm/sup 2/ > 1 MeV as part of the NRC-sponsored HSST program. The J-R curves exhibited a power-law behavior for small crack extensions (e.g., < 2 mm). Irradiation decreased the level of the R-curve significantly in most cases. The value of J-integral at the initiation of crack growth (J/sub Ic/) decreased on average by approx. 25% at 200/sup 0/C and by approx. 35% at 288/sup 0/C. The average value of tearing modulus (T/sub avg/) was a more discriminating indication of the degradation due to irradiation, as T/sub avg/ decreased on average by approx. 54% at 200/sup 0/C and by approx. 69% at 288/sup 0/C. A modest size effect associated with larger specimens was indicated for tests in the unirradiated condition, while no size effect was apparent for tests in the irradiated condition. These data comppare favorably with correlations between C/sub v/ upper shelf energy and J-R curve parameters observed from prior studies with 1T-CT specimens. These correlations could enhance the significance of C/sub v/ reactor surveillance data with respect to structural integrity.

  10. ON THE LACK OF TIME DILATION SIGNATURES IN GAMMA-RAY BURST LIGHT CURVES

    SciTech Connect

    Kocevski, Daniel

    2013-03-10

    We examine the effects of time dilation on the temporal profiles of gamma-ray burst (GRB) pulses. By using prescriptions for the shape and evolution of prompt gamma-ray spectra, we can generate a simulated population of single-pulsed GRBs at a variety of redshifts and observe how their light curves would appear to a gamma-ray detector here on Earth. We find that the observer frame duration of individual pulses does not increase with redshift as 1 + z, which one would expect from cosmological expansion. This time dilation is masked by an opposite and often stronger effect: with increasing redshift and decreasing signal-to-noise ratio only the brightest portion of the light curve can be detected. The results of our simulation are consistent with the fact that the simple time dilation of GRB light curves has not materialized in either the Swift or Fermi detected GRBs with known redshift. We show that the measured durations and associated E{sub iso} estimates for GRBs detected near the instrument's detection threshold should be considered lower limits to the true values. Furthermore, we conclude that attempts at distinguishing between long and short GRBs, at even moderate redshifts, cannot be done based on a burst's temporal properties alone.

  11. Combining Droop Curve Concepts with Control Systems for Wind Turbine Active Power Control: Preprint

    SciTech Connect

    Buckspan, A.; Aho, J.; Pao, L.; Fleming, P.; Jeong, Y.

    2012-06-01

    Wind energy is becoming a larger portion of the global energy portfolio and wind penetration has increased dramatically in certain regions of the world. This increasing wind penetration has driven the need for wind turbines to provide active power control (APC) services to the local utility grid, as wind turbines do not intrinsically provide frequency regulation services that are common with traditional generators. It is common for large scale wind turbines to be decoupled from the utility grid via power electronics, which allows the turbine to synthesize APC commands via control of the generator torque and blade pitch commands. Consequently, the APC services provided by a wind turbine can be more flexible than those provided by conventional generators. This paper focuses on the development and implementation of both static and dynamic droop curves to measure grid frequency and output delta power reference signals to a novel power set point tracking control system. The combined droop curve and power tracking controller is simulated and comparisons are made between simulations using various droop curve parameters and stochastic wind conditions. The tradeoffs involved with aggressive response to frequency events are analyzed. At the turbine level, simulations are performed to analyze induced structural loads. At the grid level, simulations test a wind plant's response to a dip in grid frequency.

  12. Molecular dynamics simulations of the melting curve of NiAl alloy under pressure

    SciTech Connect

    Zhang, Wenjin; Peng, Yufeng; Liu, Zhongli

    2014-05-15

    The melting curve of B2-NiAl alloy under pressure has been investigated using molecular dynamics technique and the embedded atom method (EAM) potential. The melting temperatures were determined with two approaches, the one-phase and the two-phase methods. The first one simulates a homogeneous melting, while the second one involves a heterogeneous melting of materials. Both approaches reduce the superheating effectively and their results are close to each other at the applied pressures. By fitting the well-known Simon equation to our melting data, we yielded the melting curves for NiAl: 1783(1 + P/9.801){sup 0.298} (one-phase approach), 1850(1 + P/12.806){sup 0.357} (two-phase approach). The good agreement of the resulting equation of states and the zero-pressure melting point (calc., 1850 25 K, exp., 1911 K) with experiment proved the correctness of these results. These melting data complemented the absence of experimental high-pressure melting of NiAl. To check the transferability of this EAM potential, we have also predicted the melting curves of pure nickel and pure aluminum. Results show the calculated melting point of Nickel agrees well with experiment at zero pressure, while the melting point of aluminum is slightly higher than experiment.

  13. Bandgap properties of diamond structure photonic crystal heterostructures with inclined and curved interfaces

    SciTech Connect

    Lei, Haitao; Li, Yong; Wang, Hong, E-mail: hwang@mail.xjtu.edu.cn [Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Center for Dielectric Research, Xi'an Jiaotong University, Xi'an 710049 (China)

    2014-06-14

    The 3D (dimensional) diamond structure photonic crystal heterostructures with different lattice constants were prepared using rapid prototyping and gel casting with alumina. In this paper, heterostructures with inclined and curved interfaces were designed and its bandgap properties were studied. The normalized resonant intensity of electromagnetic wave in heterostructure with inclined and curved interface is stronger than that in the ordinary heterostructure without modified interface. The influence of curved interface on transmission properties of electromagnetic wave was investigated with the radius of curvature ranging from 17?mm to 37?mm at 5?mm interval. The results show that two resonant modes appear in the photonic band gap, being similar to the band gap characteristics of the photonic crystals with two defects inside. With the increasing of the radius of curvature, the resonant mode shift to higher frequency. In the structure with a radius of curvature of 32?mm, a guiding band appears in the photonic band gap. Further increase in the radius of curvature, the guiding band will split into two resonant modes again and the two resonant modes shift to lower frequencies.

  14. IMAGING STARSPOT EVOLUTION ON KEPLER TARGET KIC 5110407 USING LIGHT-CURVE INVERSION

    SciTech Connect

    Roettenbacher, Rachael M.; Monnier, John D.; Harmon, Robert O.; Barclay, Thomas; Still, Martin

    2013-04-10

    The Kepler target KIC 5110407, a K-type star, shows strong quasi-periodic light curve fluctuations likely arising from the formation and decay of spots on the stellar surface rotating with a period of 3.4693 days. Using an established light-curve inversion algorithm, we study the evolution of the surface features based on Kepler space telescope light curves over a period of two years (with a gap of .25 years). At virtually all epochs, we detect at least one large spot group on the surface causing a 1%-10% flux modulation in the Kepler passband. By identifying and tracking spot groups over a range of inferred latitudes, we measured the surface differential rotation to be much smaller than that found for the Sun. We also searched for a correlation between the 17 stellar flares that occurred during our observations and the orientation of the dominant surface spot at the time of each flare. No statistically significant correlation was found except perhaps for the very brightest flares, suggesting that most flares are associated with regions devoid of spots or spots too small to be clearly discerned using our reconstruction technique. While we may see hints of long-term changes in the spot characteristics and flare statistics within our current data set, a longer baseline of observation will be needed to detect the existence of a magnetic cycle in KIC 5110407.

  15. Biogas Production Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Production Technologies Ruihong Zhang, Professor Biological and Agricultural Engineering University of California, Davis Email: rhzhang@ucdavis.edu Biogas and Fuel Cell Workshop National Renewable Energy Laboratory June 12, 2012 Presentation Outline * Status of anaerobic digestion technologies and opportunities for further development * New UC Davis solid waste digestion technologies applied to commercial projects Anaerobic Digestion Biogas Digester Effluent (residual solids and water) Organic

  16. Technology Performance Exchange

    SciTech Connect

    2015-09-01

    To address the need for accessible, high-quality data, the Department of Energy has developed the Technology Performance Exchange (TPEx). TPEx enables technology suppliers, third-party testing laboratories, and other entities to share product performance data. These data are automatically transformed into a format that technology evaluators can easily use in their energy modeling assessments to inform procurement decisions.

  17. Compression Technology and Needs

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    M ohawk Innovative Technology, Inc. HYDROGEN TRANSMISSION AND DISTRIBUTION WORKSHOP NATIONAL RENEWABLE ENERGY LABORATORY GOLDEN, COLORADO COMPRESSION TECHNOLOGY AND NEEDS Hooshang Heshmat, PH.D. February 25 TH , 2014 ® M ohawk Innovative Technology, Inc. * Overall pipeline delivery steps, production to file up * Different types of compressors * Pipeline compressor development steps and accomplishments * Need for Forecourt Compression system * Other major components: drive, sealing, pipeline,

  18. High Impact Technology Hub

    Energy.gov [DOE]

    The High Impact Technology Hub is a one stop shop for information associated with technology demonstrations in occupied, operational buildings. Resources posted to Hub should accelerate the selection and evaluation of technology demonstration projects and enable transparency into DOEs market stimulation and tech to market activities.

  19. Vehicle Technologies Office

    Energy.gov [DOE]

    The Vehicle Technologies Office is developing more energy efficient and environmentally friendly highway transportation technologies that will enable America to use less petroleum. The long-term aim is to develop "leap frog" technologies that will provide Americans with greater freedom of mobility and energy security, while lowering costs and reducing impacts on the environment.

  20. Vehicle Technologies Office: 2008 Advanced Vehicle Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Use and Greenhouse Gas Emissions of Plug-In Hybrid Electric Vehicles Vehicle Technologies Office: 2010 Vehicle and Systems Simulation and Testing R&D Annual Progress Report

  1. Vehicle Technologies Office Merit Review 2014: Carbon Fiber Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Carbon Fiber Technology Facility Vehicle Technologies Office Merit Review 2014: Carbon Fiber Technology Facility Presentation given by Oak Ridge National Laboratory at 2014 DOE ...

  2. Fuel Cell Technologies Office: Technology Validation Fact Sheet

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The Fuel Cell Technologies (FCT) Office, through its Technology Validation program, provides a crucial step in the transition of a technology from the lab to commercialization. ...

  3. Technology Readiness Assessment (TRA)/Technology Maturation Plan...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Readiness Assessment (TRA)Technology Maturation Plan (TMP) Process Guide Technology Readiness ... More Documents & Publications Technology Readiness Assessment Report Small Column Ion ...

  4. Vehicle Technologies Office Merit Review 2015: Vehicle Technologies...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Vehicle Technologies Office Overview Vehicle Technologies Office Merit Review 2015: Vehicle Technologies Office Overview Presentation given by U.S. Department of Energy at 2015 DOE ...

  5. Vehicle Technologies Office Merit Review 2015: Advanced Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Advanced Technology Vehicle Lab Benchmarking (L1&L2) Vehicle Technologies Office Merit Review 2015: Advanced Technology Vehicle Lab Benchmarking (L1&L2) Presentation given by Argonne ...

  6. Vehicle Technologies Office: 2008 Oak Ridge Transportation Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Oak Ridge Transportation Technology Program Annual Report Vehicle Technologies Office: 2008 Oak Ridge Transportation Technology Program Annual Report ornlttpreportfy08.pdf (4.58 ...

  7. Supplemental Treatment Technologies Hanford Advisory Board Tank Waste Committee

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Supplemental Treatment Technologies Hanford Advisory Board Tank Waste Committee Billie Mauss Technology Program Manager April 15, 2010 WP 1 - Waste Retrieval and Closure Technologies $5.2 M Challenge *Increase capability to remove tank waste material *Reduce waste volumes *Increase storage capacity in existing tanks *Ability to assess environmental safety of grouted waste residuals in tanks Possible Solutions * Develop alternative chemical cleaning methods to control tank heel chemistry *

  8. Vehicle Technologies Office: Modeling, Testing, Data and Results |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Modeling, Testing, Data and Results Vehicle Technologies Office: Modeling, Testing, Data and Results Along with work in individual technologies, the Vehicle Technologies Office (VTO) funds research that explores how to connect these components and systems together in the most effective, efficient way possible. Much of this work uses specialized equipment and software that VTO developed in partnership with the national laboratories, including the industry-leading modeling

  9. Science and technology for industrial ecology

    SciTech Connect

    Gilmartin, T.J.; Allenby, B.R.

    1996-07-10

    Scientific and technological communities have a significant role to play and responsibility for the evolution of global sustainability (continuously improving quality of life into the indefinite future). Sustainability is not possible without a substantially improved science and technology basis for industrial ecology. Society needs data and understanding of complex ecological issues to govern itself in a sustainable manner. We should: support and develop multi-disciplinary programs which create the scientific basis for understanding natural and anthropogenic complex systems and for developing environmentally and economically efficient technology; demonstrate a systems-based approach to science and technology issues which is life-cycle comprehensive, integrates environmental considerations, and promotes conservation of natural resources; and encourage development of responsible, technically and scientifically valid, cost-effective environmental laws and practices.

  10. Characterization, Monitoring, and Sensor Technology Integrated Program (CMST-IP). Technology summary

    SciTech Connect

    Not Available

    1994-04-01

    The Characterization, Monitoring, and Sensor Technology Integrated Program seeks to deliver needed technologies, timely and cost-effectively, to the Office of Waste Management (EM-30), the Office of Environmental Restoration (EM-40), and the Office of Facility Transition and Management (EM-60). The scope of characterizations monitoring, and sensor technology needs that are required by those organizations encompass: (1) initial location and characterization of wastes and waste environments - prior to treatment; (2) monitoring of waste retrieval, remediation and treatment processes; (3) characterization of the co-position of final waste treatment forms to evaluate the performance of waste treatments processes; and (4) site closure and compliance monitoring. Wherever possible, the CMST-IP fosters technology transfer and commercialization of technologies that it sponsors.

  11. Population Sensitivity Evaluation of Two Candidate Locations for Possible

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Small Modular Reactor Siting | Department of Energy Population Sensitivity Evaluation of Two Candidate Locations for Possible Small Modular Reactor Siting Population Sensitivity Evaluation of Two Candidate Locations for Possible Small Modular Reactor Siting This report documents population density studies of selected sites in the Hampton Roads, Virginia area. Population Sensitivity Evaluation of Two Candidate Locations for Possible Small Modular Reactor Siting (3.84 MB) More Documents &

  12. Gerar Technology | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Gerar Technology Jump to: navigation, search Name: Gerar Technology Place: Rio de Janeiro, Brazil Product: Developer of new technology for production of biodiesel from vegetable...

  13. EKB Technology | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    EKB Technology Jump to: navigation, search Name: EKB Technology Place: Oxfordshire, United Kingdom Product: Developer of a new bioprocessing technology. Coordinates: 51.813938,...

  14. Rubicon Technology | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Rubicon Technology Jump to: navigation, search Name: Rubicon Technology Place: Franklin Park, Illinois Zip: 60131 Product: Rubicon Technology makes a sapphire substrates for use in...

  15. High Impact Technology Hub- Results

    Energy.gov [DOE]

    Highlights, outcomes and activities to support the adoption of High Impact Technologies. Technology Highlights preview early results from current technology demonstrations. Case Studies overview...

  16. Shorepower Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Shorepower Technologies Jump to: navigation, search Logo: Shorepower Technologies Name: Shorepower Technologies Address: 2351 NW York St. Place: Portland, Oregon Zip: 97210 Region:...

  17. PCN Technology | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    PCN Technology Jump to: navigation, search Name: PCN Technology Place: San Diego, California Zip: CA 92127 Product: California-based smart grid technology developer. References:...

  18. Briza Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Briza Technologies Jump to: navigation, search Name: Briza Technologies Place: Hillsborough, New Jersey Zip: 8844 Sector: Wind energy Product: Developing wind turbine technology....

  19. Konarka Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technologies Jump to: navigation, search Name: Konarka Technologies Place: Lowell, MA Website: www.konarkatechnologies.com References: Konarka Technologies1 Information About...

  20. Minerals Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technologies Jump to: navigation, search Name: Minerals Technologies Place: Bethlehem, PA Website: www.mineralstechnologies.com References: Minerals Technologies1 Information...

  1. Topanga Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technologies Place: Canoga Park, California Zip: 91303 Product: Stealth-mode high-intensity discharge (HID) lighting technology developer. References: Topanga Technologies1...

  2. Classification of Geothermal Systems: A Possible Scheme | Open...

    OpenEI (Open Energy Information) [EERE & EIA]

    of Geothermal Systems: A Possible Scheme Abstract Abstract unavailable. Author Subir K. Sanyal Conference Thirtieth Workshop on Geothermal Reservoir Engineering; Stanford,...

  3. Solid-State Combustion of Metallic Nanoparticles: New Possibilities...

    Office of Scientific and Technical Information (OSTI)

    Metallic Nanoparticles: New Possibilities for an Alternative Energy Carrier Citation Details In-Document Search Title: Solid-State Combustion of Metallic Nanoparticles: New ...

  4. Possible Demonstration of a Polaronic Bose-Einstein(-Mott) Condensate...

    Office of Scientific and Technical Information (OSTI)

    Demonstration of a Polaronic Bose-Einstein(-Mott) Condensate in UO2(+x) by Ultrafast THz Spectroscopy and Microwave Dissipation Citation Details In-Document Search Title: Possible ...

  5. Assessment of Possible Cycle Lengths for Fully Encapsulated Microstruc...

    Office of Scientific and Technical Information (OSTI)

    light water reactor Concepts Citation Details In-Document Search Title: Assessment of Possible Cycle Lengths for Fully Encapsulated Microstructure fueled light water reactor ...

  6. Science on Saturday: Reimagining the Possible: Scientific Transformati...

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Science on Saturday: Reimagining the Possible: Scientific Transformations Shaping the Path Towards Fusion Energy Dr. Edmund Synakowski Department of Energy, Office of Science ...

  7. Heavy surface state in a possible topological Kondo insulator...

    Office of Scientific and Technical Information (OSTI)

    Heavy surface state in a possible topological Kondo insulator: Magnetothermoelectric transport on the (011) plane of SmB 6 This content will become publicly available on February...

  8. 'What is Space?': Full of Possibilities | Department of Energy

    Energy.gov [DOE] (indexed site)

    time, the realm of quantum physics, and the astonishing possibilities of the multiverse. ... Saul Perlmuter, who recently shared the Nobel Peace Prize in Physics for the discovery ...

  9. Battery packaging - Technology review

    SciTech Connect

    Maiser, Eric

    2014-06-16

    This paper gives a brief overview of battery packaging concepts, their specific advantages and drawbacks, as well as the importance of packaging for performance and cost. Production processes, scaling and automation are discussed in detail to reveal opportunities for cost reduction. Module standardization as an additional path to drive down cost is introduced. A comparison to electronics and photovoltaics production shows 'lessons learned' in those related industries and how they can accelerate learning curves in battery production.

  10. Technology transfer 1994

    SciTech Connect

    Not Available

    1994-01-01

    This document, Technology Transfer 94, is intended to communicate that there are many opportunities available to US industry and academic institutions to work with DOE and its laboratories and facilities in the vital activity of improving technology transfer to meet national needs. It has seven major sections: Introduction, Technology Transfer Activities, Access to Laboratories and Facilities, Laboratories and Facilities, DOE Office, Technologies, and an Index. Technology Transfer Activities highlights DOE`s recent developments in technology transfer and describes plans for the future. Access to Laboratories and Facilities describes the many avenues for cooperative interaction between DOE laboratories or facilities and industry, academia, and other government agencies. Laboratories and Facilities profiles the DOE laboratories and facilities involved in technology transfer and presents information on their missions, programs, expertise, facilities, and equipment, along with data on whom to contact for additional information on technology transfer. DOE Offices summarizes the major research and development programs within DOE. It also contains information on how to access DOE scientific and technical information. Technologies provides descriptions of some of the new technologies developed at DOE laboratories and facilities.

  11. Exploration Technologies Technology Needs Assessment | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technologies Technology Needs Assessment Exploration Technologies Technology Needs Assessment The Exploration Technologies Needs Assessment is a critical component of ongoing technology roadmapping efforts, and will be used to guide the program's research and development. iet_needs_assessment_06-2011.pdf (5.04 MB) More Documents & Publications Draft Innovative Exploration Technologies Needs Assessment Geothermal Technologies Program Annual Peer Review Presentation By Doug Hollett

  12. Environmental Technology Verification of Mobile Sources Control...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

  13. Vehicle Technologies Office: Laboratory Facilities and Collaborative...

    Energy Saver

    Electric Drive Technologies Vehicle Technologies Office: Laboratory Facilities and Collaborative Research for Electric Drive Technologies The Vehicle Technologies Office (VTO) ...

  14. Geothermal Technologies Office - Webmaster | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    - Webmaster Geothermal Technologies Office - Webmaster

  15. Autonomous Vehicles Have a Wide Range of Possible Energy Impacts (Poster)

    SciTech Connect

    Brown, A.; Repac, B.; Gonder, J.

    2013-07-01

    This poster presents initial estimates of the net energy impacts of automated vehicles (AVs). Automated vehicle technologies are increasingly recognized as having potential to decrease carbon dioxide emissions and petroleum consumption through mechanisms such as improved efficiency, better routing, lower traffic congestion, and by enabling advanced technologies. However, some effects of AVs could conceivably increase fuel consumption through possible effects such as longer distances traveled, increased use of transportation by underserved groups, and increased travel speeds. The net effect on petroleum use and climate change is still uncertain. To make an aggregate system estimate, we first collect best estimates for the energy impacts of approximately ten effects of AVs. We then use a modified Kaya Identity approach to estimate the range of aggregate effects and avoid double counting. We find that depending on numerous factors, there is a wide range of potential energy impacts. Adoption of automated personal or shared vehicles can lead to significant fuel savings but has potential for backfire.

  16. Accurate potential energy, dipole moment curves, and lifetimes of vibrational states of heteronuclear alkali dimers

    SciTech Connect

    Fedorov, Dmitry A.; Varganov, Sergey A.; Derevianko, Andrei

    2014-05-14

    We calculate the potential energy curves, the permanent dipole moment curves, and the lifetimes of the ground and excited vibrational states of the heteronuclear alkali dimers XY (X, Y = Li, Na, K, Rb, Cs) in the X{sup 1}?{sup +} electronic state using the coupled cluster with singles doubles and triples method. All-electron quadruple-? basis sets with additional core functions are used for Li and Na, and small-core relativistic effective core potentials with quadruple-? quality basis sets are used for K, Rb, and Cs. The inclusion of the coupled cluster non-perturbative triple excitations is shown to be crucial for obtaining the accurate potential energy curves. A large one-electron basis set with additional core functions is needed for the accurate prediction of permanent dipole moments. The dissociation energies are overestimated by only 14 cm{sup ?1} for LiNa and by no more than 114 cm{sup ?1} for the other molecules. The discrepancies between the experimental and calculated harmonic vibrational frequencies are less than 1.7 cm{sup ?1}, and the discrepancies for the anharmonic correction are less than 0.1 cm{sup ?1}. We show that correlation between atomic electronegativity differences and permanent dipole moment of heteronuclear alkali dimers is not perfect. To obtain the vibrational energies and wave functions the vibrational Schrdinger equation is solved with the B-spline basis set method. The transition dipole moments between all vibrational states, the Einstein coefficients, and the lifetimes of the vibrational states are calculated. We analyze the decay rates of the vibrational states in terms of spontaneous emission, and stimulated emission and absorption induced by black body radiation. In all studied heteronuclear alkali dimers the ground vibrational states have much longer lifetimes than any excited states.

  17. Synchro-curvature radiation of charged particles in the strong curved magnetic fields

    SciTech Connect

    Kelner, S. R.; Prosekin, A. Yu.; Aharonian, F. A. E-mail: Anton.Prosekin@mpi-hd.mpg.de

    2015-01-01

    It is generally believed that the radiation of relativistic particles in a curved magnetic field proceeds in either the synchrotron or the curvature radiation modes. In this paper we show that in strong curved magnetic fields a significant fraction of the energy of relativistic electrons can be radiated away in the intermediate, the so-called synchro-curvature regime. Because of the persistent change of the trajectory curvature, the radiation varies with the frequency of particle gyration. While this effect can be ignored in the synchrotron and curvature regimes, the variability plays a key role in the formation of the synchro-curvature radiation. Using the Hamiltonian formalism, we find that the particle trajectory has the form of a helix wound around the drift trajectory. This allows us to calculate analytically the intensity and energy distribution of prompt radiation in the general case of magnetic bremsstrahlung in the curved magnetic field. We show that the transition to the limit of the synchrotron and curvature radiation regimes is determined by the relation between the drift velocity and the component of the particle velocity perpendicular to the drift trajectory. The detailed numerical calculations, which take into account the energy losses of particles, confirm the principal conclusions based on the simplified analytical treatment of the problem, and allow us to analyze quantitatively the transition between different radiation regimes for a broad range of initial pitch angles. These calculations demonstrate that even very small pitch angles may lead to significant deviations from the spectrum of the standard curvature radiation when it is formally assumed that a charged particle moves strictly along the magnetic line. We argue that in the case of realization of specific configurations of the electric and magnetic fields, the gamma-ray emission of the pulsar magnetospheres can be dominated by the component radiated in the synchro-curvature regime.

  18. Geothermal innovative technologies catalog

    SciTech Connect

    Kenkeremath, D.

    1988-09-01

    The technology items in this report were selected on the basis of technological readiness and applicability to current technology transfer thrusts. The items include technologies that are considered to be within 2 to 3 years of being transferred. While the catalog does not profess to be entirely complete, it does represent an initial attempt at archiving innovative geothermal technologies with ample room for additions as they occur. The catalog itself is divided into five major functional areas: Exploration; Drilling, Well Completion, and Reservoir Production; Materials and Brine Chemistry; Direct Use; and Economics. Within these major divisions are sub-categories identifying specific types of technological advances: Hardware; Software; Data Base; Process/Procedure; Test Facility; and Handbook.

  19. AN EXACT SOLUTION FOR MAGNETIC ANNIHILATION IN A CURVED CURRENT SHEET

    SciTech Connect

    Litvinenko, Yuri E.

    2013-09-10

    An exact magnetohydrodynamic solution is presented for steady magnetic annihilation (merging) in an incompressible resistive viscous plasma. The merging, driven by an axisymmetric stagnation flow on a cylinder, takes place in a curved current sheet that is perpendicular to the plane in which the plasma flow stagnates. The new solution extends earlier models of flux pileup merging in a flat current sheet, driven by stagnation-point flows. The new solution remains valid in the presence of both the isotropic and anisotropic (parallel) plasma viscosity. The geometry of the solution may make it useful in modeling the photospheric flux cancellation on the Sun.

  20. UNCERTAINTIES OF MODELING GAMMA-RAY PULSAR LIGHT CURVES USING VACUUM DIPOLE MAGNETIC FIELD

    SciTech Connect

    Bai Xuening; Spitkovsky, Anatoly E-mail: anatoly@astro.princeton.ed

    2010-06-01

    Current models of pulsar gamma-ray emission use the magnetic field of a rotating dipole in vacuum as a first approximation to the shape of a plasma-filled pulsar magnetosphere. In this paper, we revisit the question of gamma-ray light curve formation in pulsars in order to ascertain the robustness of the 'two-pole caustic (TPC)' and 'outer gap (OG)' models based on the vacuum magnetic field. We point out an inconsistency in the literature on the use of the relativistic aberration formula, where in several works the shape of the vacuum field was treated as known in the instantaneous corotating frame, rather than in the laboratory frame. With the corrected formula, we find that the peaks in the light curves predicted from the TPC model using the vacuum field are less sharp. The sharpness of the peaks in the OG model is less affected by this change, but the range of magnetic inclination angles and viewing geometries resulting in double-peaked light curves is reduced. In a realistic magnetosphere, the modification of field structure near the light cylinder (LC) due to plasma effects may change the shape of the polar cap and the location of the emission zones. We study the sensitivity of the light curves to different shapes of the polar cap for static and retarded vacuum dipole fields. In particular, we consider polar caps traced by the last open field lines and compare them to circular polar caps. We find that the TPC model is very sensitive to the shape of the polar cap, and a circular polar cap can lead to four peaks of emission. The OG model is less affected by different polar cap shapes, but is subject to big uncertainties of applying the vacuum field near the LC. We conclude that deviations from the vacuum field can lead to large uncertainties in pulse shapes, and a more realistic force-free field should be applied to the study of pulsar high-energy emission.

  1. First principles electronic band structure and phonon dispersion curves for zinc blend beryllium chalcogenide

    SciTech Connect

    Dabhi, Shweta Mankad, Venu Jha, Prafulla K.

    2014-04-24

    A detailed theoretical study of structural, electronic and Vibrational properties of BeX compound is presented by performing ab-initio calculations based on density-functional theory using the Espresso package. The calculated value of lattice constant and bulk modulus are compared with the available experimental and other theoretical data and agree reasonably well. BeX (X = S,Se,Te) compounds in the ZB phase are indirect wide band gap semiconductors with an ionic contribution. The phonon dispersion curves are represented which shows that these compounds are dynamically stable in ZB phase.

  2. The light curve of SN 1987A revisited: constraining production masses of radioactive nuclides

    SciTech Connect

    Seitenzahl, Ivo R.; Timmes, F. X.; Magkotsios, Georgios

    2014-09-01

    We revisit the evidence for the contribution of the long-lived radioactive nuclides {sup 44}Ti, {sup 55}Fe, {sup 56}Co, {sup 57}Co, and {sup 60}Co to the UVOIR light curve of SN 1987A. We show that the V-band luminosity constitutes a roughly constant fraction of the bolometric luminosity between 900 and 1900 days, and we obtain an approximate bolometric light curve out to 4334 days by scaling the late time V-band data by a constant factor where no bolometric light curve data is available. Considering the five most relevant decay chains starting at {sup 44}Ti, {sup 55}Co, {sup 56}Ni, {sup 57}Ni, and {sup 60}Co, we perform a least squares fit to the constructed composite bolometric light curve. For the nickel isotopes, we obtain best fit values of M({sup 56}Ni) = (7.1 ± 0.3) × 10{sup –2} M {sub ☉} and M({sup 57}Ni) = (4.1 ± 1.8) × 10{sup –3} M {sub ☉}. Our best fit {sup 44}Ti mass is M({sup 44}Ti) = (0.55 ± 0.17) × 10{sup –4} M {sub ☉}, which is in disagreement with the much higher (3.1 ± 0.8) × 10{sup –4} M {sub ☉} recently derived from INTEGRAL observations. The associated uncertainties far exceed the best fit values for {sup 55}Co and {sup 60}Co and, as a result, we only give upper limits on the production masses of M({sup 55}Co) < 7.2 × 10{sup –3} M {sub ☉} and M({sup 60}Co) < 1.7 × 10{sup –4} M {sub ☉}. Furthermore, we find that the leptonic channels in the decay of {sup 57}Co (internal conversion and Auger electrons) are a significant contribution and constitute up to 15.5% of the total luminosity. Consideration of the kinetic energy of these electrons is essential in lowering our best fit nickel isotope production ratio to [{sup 57}Ni/{sup 56}Ni] = 2.5 ± 1.1, which is still somewhat high but is in agreement with gamma-ray observations and model predictions.

  3. An Algorithm for Obtaining Reliable Priors for Constrained-Curve Fits

    SciTech Connect

    Terrence Draper; Shao-Jing Dong; Ivan Horvath; Frank Lee; Nilmani Mathur; Jianbo Zhang

    2004-03-01

    We introduce the ''Sequential Empirical Bayes Method'', an adaptive constrained-curve fitting procedure for extracting reliable priors. These are then used in standard augmented-chi-square fits on separate data. This better stabilizes fits to lattice QCD overlap-fermion data at very low quark mass where a priori values are not otherwise known. We illustrate the efficacy of the method with data from overlap fermions, on a quenched 16{sup 3} x 28 lattice with spatial size La = 3.2 fm and pion mass as low as {approx} 180 MeV.

  4. Materials performance in advanced fossil technologies

    SciTech Connect

    Natesan, K. )

    1991-11-01

    A number of advanced technologies are being developed to convert coal into clean fuels for use as a feedstock in chemical plants and for power generation. From the standpoint of component materials, the environments created by coal conversion and combustion in these technologies and their interactions with materials are of interest. This article identifies several modes of materials degradation and possible mechanisms for metal wastage. Available data on the performance of materials in several of the environments are highlighted, and examples of promising research activities to improve the corrosion resistance of materials are presented.

  5. Completed Deepwater Technology Projects

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Deepwater Technology Projects Active Projects | Completed Projects Completed Offshore Deepwater Technology Projects Project Number Project Name Primary Performer 12121-6503-01 Development of Best Practices and Risk Mitigation Measures for Deepwater Cementing in SBM and OBM CSI Technologies 11121-5101-01 Trident: A Human Factors Decision Aid Integrating Deepwater Drilling Tasks, Incidents, and Literature Review Pacific Science & Engineering Group 11121-5503-01 Intelligent BOP RAM Actuation

  6. TECHNOLOGY READINESS ASSESSMENT

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ASSESSMENT JANUARY 2015 -A CHECKPOINT ALONG A CHALLENGING JOURNEY DOE/NETL-2015/1710 U.S. Department of Energy 2014 TECHNOLOGY READINESS ASSESSMENT-CLEAN COAL RESEARCH PROGRAM 2 2014 TECHNOLOGY READINESS ASSESSMENT-CLEAN COAL RESEARCH PROGRAM Office of Fossil Energy | National Energy Technology Laboratory DISCLAIMER 3 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor

  7. 2013 DOE Bioenergy Technologies

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Bioenergy Technologies Office (BETO) Project Peer Review Catalytic Conversion of Lignocellulosic Biomass to Hydrocarbon Fuels (2 3 1 12) Technology Area Review: Biochemical Conversion 1 | Bioenergy Technologies Office eere.energy.gov Hydrocarbon Fuels (2.3.1.12) May 22, 2013 Mike Lilga This presentation does not contain any proprietary, confidential, or otherwise restricted information Conversion Organization: PNNL Goal Statement Goals: * There is a need to make a balanced f el composition

  8. Technologies | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technologies Available for Licensing Energy Storage Industrial & Manufacturing Processes Instrumentation & Devices Licensable Software Life Sciences Materials Transportation Fact Sheets and Forms Licensable Technologies Argonne's researchers have developed a wide and diverse range of technologies that have worldwide impact in a variety of fields. Argonne grants licenses for lab-developed intellectual property to existing and start-up companies that are technically and financially capable

  9. Digital Sensor Technology

    SciTech Connect

    Ted Quinn; Jerry Mauck; Richard Bockhorst; Ken Thomas

    2013-07-01

    The nuclear industry has been slow to incorporate digital sensor technology into nuclear plant designs due to concerns with digital qualification issues. However, the benefits of digital sensor technology for nuclear plant instrumentation are substantial in terms of accuracy, reliability, availability, and maintainability. This report demonstrates these benefits in direct comparisons of digital and analog sensor applications. It also addresses the qualification issues that must be addressed in the application of digital sensor technology.

  10. Bioenergy Technologies Presentation

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Technologies State Energy Advisory Board Meeting October 18, 2007 ORNL Jonathan R, Mielenz ORNL Biomass Program Manager & Bioconversion Science and Technology President's State of the Union Address January 2006 Keeping America competitive requires affordable energy. And here we have a serious problem: America is addicted to oil, which is often imported from unstable parts of the world. The best way to break this addiction is through technology.... and we are on the threshold of incredible

  11. Technology Transfer Execution Plan

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Transfer Execution Plan 2016 - 2018 Report to Congress October 2016 United States Department of Energy Washington, DC 20585 Department of Energy | October 2016 Technology Transfer Execution Plan 2016-2018 | Page ii Message from the Secretary On behalf of the U.S. Department of Energy (DOE), I am pleased to present the Department's Technology Transfer Execution Plan (TTEP). This plan is intended to guide DOE, particularly it's Office of Technology Transitions (OTT), in promoting scientific and

  12. Technology Transfer - JCAP

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    PAZ0004_v2.jpg Technology Transfer Who We Are JCAP Mission JCAP At A Glance Fact Sheets Organizational Chart Recent Science Technology Transfer Awards & Honors Senior Management Scientific Leadership Researchers Governance & Advisory Boards Operations & Administration Who we are Overview JCAP Mission JCAP At A Glance Fact Sheets Organizational Chart Our Achievements Recent Science Technology Transfer Awards & Honors Our People Senior Management Scientific Leadership Researchers

  13. Technology Transfer Partnership Ombuds

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Tech Transfer Ombuds Technology Transfer Partnership Ombuds The mission of the Ombuds Office is to enhance communication and mitigate conflict at the Laboratory. Contact (505) 665-2837 Email Anonymous Helpline (505) 667-9370 Technology transfer dispute resolution The Ombuds Program offers dispute resolution assistance to the Laboratory's external stakeholders in areas of technology transfer and other community-based affairs that is consistent with Ombuds Standards of practice. Scope To serve as

  14. Jefferson Lab - Technology Transfer

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Review Committee The Technology Review Committee was established by Jefferson Lab's Director's Council to oversee the intellectual property of the Laboratory. The Committee, composed of representatives of all Divisions, is charged with facilitating the transfer of technology and inventions, developed at the Laboratory, to the private sector. This activity takes on a variety of forms, from establishing Memoranda of Understanding (MOUs), Cooperative Research and Development Agreements

  15. Technology Pathway Selection Effort

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    BIOMASS PROGRAM Technology Pathway Selection Effort Alicia Lindauer 27 November 2012 2 | Biomass Program eere.energy.gov * Setting R&D priorities * Benchmarking * Informing multi-sectoral analytical activities * Track Program R&D progress against goals * Identify technology process routes and prioritize funding * Program direction decisions: * Are we spending our money on the right technology pathways? * Within a pathway: Are we focusing our funding on the highest priority activities?

  16. Geothermal Technologies Office March

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Report Geothermal Technologies Office March 2015 The 2014 Annual Report of the Geothermal Technologies Office is a product of the United States Department of Energy, Office of Energy Efficiency and Renewable Energy. DOE/EERE-1160 * March 2015 This report spans calendar year 2014 achievements. Photographs are accredited herein. back cover photo: Geothermal heat at Pilgrim Hot Springs, Alaska. Source: C. Pike at the Alaska Center for Energy and Power 2014 Annual Report Geothermal Technologies

  17. Marine & Hydrokinetic Technologies

    SciTech Connect

    2011-07-01

    This fact sheet describes the Wind and Water Power Program's current approach to supporting the development and deployment of marine and hydrokinetic technologies.

  18. Benchmarking of Competitive Technologies

    Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  19. Fuel Cell Technologies Budget

    SciTech Connect

    EERE

    2012-03-16

    The Fuel Cell Technologies Office receives appropriations from Energy and Water Development. The offices's major activities and budget are outlined in this Web page.

  20. Overview of biomass technologies

    SciTech Connect

    None, None

    2009-01-18

    The biomass overview of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  1. Information Sciences and Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    file systems Bioinformatics Infectious disease surveillance Climate change and energy security Smart grids Learn more about our Information Science and Technology capabilities

  2. Supervisory Information Technology Specialist

    Energy.gov [DOE]

    A successful candidate in this position will be responsible for providing Information Technology (IT) infrastructure, capabilities and technical support to the Department of Energy (DOE),...

  3. Emerging Technologies (ET)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Appliance and Equipment Standards * ENERGY STAR Theory of Impact: Deployment programs utilize reports as technology baseline. Theory of Impact: Supports performance and cost ...

  4. Technology Demonstration Partnership Policy

    Energy.gov [DOE]

    This City Council memorandum establishes a framework for engaging in and evaluating demonstration partnerships with the goal of developing, testing, and demonstrating emerging technologies, product, and service innovations.

  5. Information Technology Specialist (Security)

    Energy.gov [DOE]

    A successful candidate in this position will serve as an Information Technology Specialist (Security) responsible for providing technical support in the information security environment which...

  6. 2016 Technology Innovation Projects

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Projects FY 2016 Technology Innovation Project Briefs Demand Response TIP 292: Advanced Heat Pump Water Heater Research TIP 336: Scaled Deployment and Demonstration of Demand...

  7. Scaled Wind Farm Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Scaled Wind Farm Technology - Sandia Energy Energy Search Icon Sandia Home Locations ... Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power ...

  8. Consumer Vehicle Technology Data

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    technologies Relevance: An informed understanding of the consumer allows VTO to achieve petroleum-use reduction goals through: * Robust assumptions for consumer modeling,...

  9. Consumer Vehicle Technology Data

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    technologies. Relevance: An informed understanding of the consumer allows VTO to achieve petroleum-use reduction goals through: * Robust assumptions for consumer modeling,...

  10. TECHNOLOGY PROGRAM PLAN

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... against business environment risk, reducing program dependency on a single developer. ... U.S. DEPARTMENT OF ENERGY TECHNOLOGY PROGRAM PLAN CHAPTER 2: SOLID OXIDE FUEL CELLS ...

  11. ocean energy technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ... Tribal Energy Program Intellectual Property Current EC Partnerships How to Partner Small ... SunShot Grand Challenge: Regional Test Centers ocean energy technologies HomeTag:ocean ...

  12. Benchmarking of Competitive Technologies

    Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  13. Collaborative Transmission Technology Roadmap

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Addendum to the Collaborative Transmission Technology Roadmap March 2014 Bonneville Power Administration Enhanced PDF Functionality Functionality of the PDF version of this...

  14. Sandia Science & Technology Park

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Laboratories. More Info Liquid Common SS&TP welcomes Liquid Common Liquid Common is a digital marketing company now located in the Park. More Info Sandia Science & Technology...

  15. Technology Integration Overview

    Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  16. Renewable energy technology characterizations

    SciTech Connect

    None, None

    1997-12-01

    The Renewable Energy Technology Characterizations describe the technical and economic status of the major emerging renewable energy options for electricity supply.

  17. Information Science & Technology Institute

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    ISTI Information Science & Technology Institute Providing connection to program management for capability needs, as well as IS&T integration and support for mission-critical...

  18. Advanced Optical Technologies

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    The Advanced Optical Components and Technologies program develops, creates and provides critical optical components for laser-based missions at LLNL. Past projects focused on ...

  19. Quadrennial Technology Review Glossary

    Office of Environmental Management (EM)

    ... converter A technology based on semiconductor devices ... in hot rock to allow the extraction of heat to drive power generation. enhanced oil recovery Techniques that use water, ...

  20. Window Industry Technology Roadmap

    SciTech Connect

    None, None

    2000-04-01

    The Window Industry Technology Roadmap looks at the trends in window design and installation in 2000 and projects trends for the future.

  1. Information Technology Specialist

    Energy.gov [DOE]

    The Information Technology Services Office (ITSO) is an office within the Office of Business Operations (BO) that provides administrative support to the Office of Energy Efficiency and Renewable...

  2. Solar Energy Technologies Office

    Office of Energy Efficiency and Renewable Energy (EERE)

    In 2011, the Energy Department's Solar Energy Technologies Office (SETO) became the SunShot Initiative, a collaborative national effort that aggressively drives innovation to make solar energy...

  3. Summary - Caustic Recovery Technology

    Office of Environmental Management (EM)

    The Ceramatec Sodium (Na), Super fast Ionic CONductors (NaSICON) membrane has shown ... process utilizes a novel inorganic membrane technology to recover concentrated ...

  4. Director, Geothermal Technologies Office

    Energy.gov [DOE]

    The mission of the Geothermal Technologies Office (GTO) is to accelerate the development and deployment of clean, domestic geothermal resources that will promote a stronger, more productive economy...

  5. Sorption Storage Technology Summary

    Energy.gov [DOE]

    Presented at the R&D Strategies for Compressed, Cryo-Compressed and Cryo-Sorbent Hydrogen Storage Technologies Workshops on February 14 and 15, 2011.

  6. Energy Technology Program Specialist

    Energy.gov [DOE]

    The Office of Energy Efficiency and Renewable Energy is the lead Federal government organization for energy efficiency and renewable energy technology research and development. Its mission is to...

  7. Overview of wind technologies

    SciTech Connect

    None, None

    2009-01-18

    The wind overview section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  8. Recycling Technology Validation

    Energy.gov [DOE]

    2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

  9. Mobile Technology Management

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    2013-11-21

    The directive will ensure that federal organizations and employees within the Department can use mobile technology to support mission requirements in a safe and secure manner.

  10. Massachusetts Institute of Technology

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    of Technology Short baseline neutrino workshop, Fermilab, Batavia, IL, May 13, 2011 Test of Lorentz and CPT violation with neutrinos Outline 1. Why Lorentz violation is...

  11. Science & Technology Review Articles

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    NIF & Photon Science News Press Releases Experimental Highlights Efficiency Improvements Science & Technology Meetings and Workshops Papers and Presentations NIF&PS People In the ...

  12. Fuel Cell Technologies Overview

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    States Energy Advisory Board (STEAB) Washington, DC Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 3142012 2 | Fuel Cell ...

  13. Appendix C - Industrial technologies

    SciTech Connect

    None, None

    2002-12-20

    This report describes the results, calculations, and assumptions underlying the GPRA 2004 Quality Metrics results for all Planning Units within the Office of Industrial Technologies.

  14. Overview of geothermal technologies

    SciTech Connect

    None, None

    2009-01-18

    The geothermal overview section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  15. Ocean Energy Technology Overview

    SciTech Connect

    none,

    2009-08-05

    Introduction to and overview of ocean renewable energy resources and technologies prepared for the U.S. Department of Energy Federal Energy management Program.

  16. Bioconversion Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    to: navigation, search Name: Bioconversion Technologies Place: United Kingdom Sector: Biofuels Product: Second-generation biofuels technology developer References: Bioconversion...

  17. Hydrocarbon Technologies | Open Energy Information

    OpenEI (Open Energy Information) [EERE & EIA]

    Technologies Jump to: navigation, search Name: Hydrocarbon Technologies Place: Lawrenceville, New Jersey Zip: 8648 Sector: Efficiency Product: String representation...

  18. National Algal Biofuels Technology Review

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary V: National Algal Biofuels Technology Review National Algal Biofuels Technology Review Matthew Posewitz, Professor, Colorado School of Mines

  19. Analysis Insights: Energy Storage - Possibilities for Expanding Electric Grid Flexibility (Brochure), NREL (National Renewable Energy Laboratory)

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    764 F E B R U A R Y 2 0 1 6 A N A LY S I S I N S I G H T S ENERGY STORAGE Possibilities for Expanding Electric Grid Flexibility POTENTIAL GRID APPLICATIONS STORAGE TECHNOLOGY CHARACTERISTICS 0.1 1 10 100 1000 Seconds Minutes Hours Days Generation Transmission & Distribution End Use E ciency 85-100% 70-85% 45-70% 30-45% Energy Management Operating & Ramping Reserves Frequency Response & Regulation Provide uninterruptable power supply-provide back-up power Optimize time of use retail

  20. Robotics Technology Crosscutting Program. Technology summary

    SciTech Connect

    1995-06-01

    The Robotics Technology Development Program (RTDP) is a needs-driven effort. A length series of presentations and discussions at DOE sites considered critical to DOE`s Environmental Restoration and Waste Management (EM) Programs resulted in a clear understanding of needed robotics applications toward resolving definitive problems at the sites. A detailed analysis of the resulting robotics needs assessment revealed several common threads running through the sites: Tank Waste Retrieval (TWR), Contaminant Analysis Automation (CAA), Mixed Waste Operations (MWO), and Decontamination and Dismantlement (D and D). The RTDP Group also realized that some of the technology development in these four areas had common (Cross Cutting-CC) needs, for example, computer control and sensor interface protocols. Further, the OTD approach to the Research, Development, Demonstration, Testing, and Evaluation (RDDT and E) process urged an additional organizational breakdown between short-term (1--3 years) and long-term (3--5 years) efforts (Advanced Technology-AT). These factors lead to the formation of the fifth application area for Crosscutting and Advanced Technology (CC and AT) development. The RTDP is thus organized around these application areas -- TWR, CAA, MWO, D and D, and CC and AT -- with the first four developing short-term applied robotics. An RTDP Five-Year Plan was developed for organizing the Program to meet the needs in these application areas.

  1. Emerging Technologies - Capturing Innovation with Technology

    SciTech Connect

    2012-12-01

    ET team research results are critical to achieving 50% energy savings across U.S. buildings within the next two decades. The ET team focuses on supporting research, development, and tech-to-market opportunities of high impact technologies, or those that demonstrate potential for achieving significant energy savings cost effectively.

  2. Assistive Technology | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Assistive Technology Assistive Technology Assistive technology word cloud. Assistive technology word cloud. The DOE Headquarters Accommodation Program was established to provide reasonable computer and related telecommunications accommodations for employees with disabilities. Since implementation of the Assistive Technologies program in 1993, accommodations have increased from an initial 26 to an approximately 700 individual accommodations. The Assistive Technologies program complies with

  3. Digital Actuator Technology

    SciTech Connect

    Ken Thomas; Ted Quinn; Jerry Mauck; Richard Bockhorst

    2014-09-01

    There are significant developments underway in new types of actuators for power plant active components. Many of these make use of digital technology to provide a wide array of benefits in performance of the actuators and in reduced burden to maintain them. These new product offerings have gained considerable acceptance in use in process plants. In addition, they have been used in conventional power generation very successfully. This technology has been proven to deliver the benefits promised and substantiate the claims of improved performance. The nuclear industry has been reluctant to incorporate digital actuator technology into nuclear plant designs due to concerns due to a number of concerns. These could be summarized as cost, regulatory uncertainty, and a certain comfort factor with legacy analog technology. The replacement opportunity for these types of components represents a decision point for whether to invest in more modern technology that would provide superior operational and maintenance benefits. Yet, the application of digital technology has been problematic for the nuclear industry, due to qualification and regulatory issues. With some notable exceptions, the result has been a continuing reluctance to undertake the risks and uncertainties of implementing digital actuator technology when replacement opportunities present themselves. Rather, utilities would typically prefer to accept the performance limitations of the legacy analog actuator technologies to avoid impacts to project costs and schedules. The purpose of this report is to demonstrate that the benefits of digital actuator technology can be significant in terms of plant performance and that it is worthwhile to address the barriers currently holding back the widespread development and use of this technology. It addresses two important objectives in pursuit of the beneficial use of digital actuator technology for nuclear power plants: 1. To demonstrate the benefits of digital actuator

  4. Technology Catalogue. First edition

    SciTech Connect

    Not Available

    1994-02-01

    The Department of Energy`s Office of Environmental Restoration and Waste Management (EM) is responsible for remediating its contaminated sites and managing its waste inventory in a safe and efficient manner. EM`s Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste management programs within EM`s Office of Environmental Restoration and Office of Waste Management. The purpose of the Technology Catalogue is to provide performance data on OTD-developed technologies to scientists and engineers assessing and recommending technical solutions within the Department`s clean-up and waste management programs, as well as to industry, other federal and state agencies, and the academic community. OTD`s applied research and demonstration activities are conducted in programs referred to as Integrated Demonstrations (IDs) and Integrated Programs (IPs). The IDs test and evaluate.systems, consisting of coupled technologies, at specific sites to address generic problems, such as the sensing, treatment, and disposal of buried waste containers. The IPs support applied research activities in specific applications areas, such as in situ remediation, efficient separations processes, and site characterization. The Technology Catalogue is a means for communicating the status. of the development of these innovative technologies. The FY93 Technology Catalogue features technologies successfully demonstrated in the field through IDs and sufficiently mature to be used in the near-term. Technologies from the following IDs are featured in the FY93 Technology Catalogue: Buried Waste ID (Idaho National Engineering Laboratory, Idaho); Mixed Waste Landfill ID (Sandia National Laboratories, New Mexico); Underground Storage Tank ID (Hanford, Washington); Volatile organic compound (VOC) Arid ID (Richland, Washington); and VOC Non-Arid ID (Savannah River Site, South Carolina).

  5. Graphene based tunable fractal Hilbert curve array broadband radar absorbing screen for radar cross section reduction

    SciTech Connect

    Huang, Xianjun; Hu, Zhirun; Liu, Peiguo

    2014-11-15

    This paper proposes a new type of graphene based tunable radar absorbing screen. The absorbing screen consists of Hilbert curve metal strip array and chemical vapour deposition (CVD) graphene sheet. The graphene based screen is not only tunable when the chemical potential of the graphene changes, but also has broadband effective absorption. The absorption bandwidth is from 8.9GHz to 18.1GHz, ie., relative bandwidth of more than 68%, at chemical potential of 0eV, which is significantly wider than that if the graphene sheet had not been employed. As the chemical potential varies from 0 to 0.4eV, the central frequency of the screen can be tuned from 13.5GHz to 19.0GHz. In the proposed structure, Hilbert curve metal strip array was designed to provide multiple narrow band resonances, whereas the graphene sheet directly underneath the metal strip array provides tunability and averagely required surface resistance so to significantly extend the screen operation bandwidth by providing broadband impedance matching and absorption. In addition, the thickness of the screen has been optimized to achieve nearly the minimum thickness limitation for a nonmagnetic absorber. The working principle of this absorbing screen is studied in details, and performance under various incident angles is presented. This work extends applications of graphene into tunable microwave radar cross section (RCS) reduction applications.

  6. The 1991-2012 light curve of the old nova HR Lyrae

    SciTech Connect

    Honeycutt, R. K.; Shears, J.; Kafka, S.; Robertson, J. W.; Henden, A. A. E-mail: bunburyobservatory@hotmail.com E-mail: Jeff.Robertson@atu.edu

    2014-05-01

    The 22 yr light curve of HR Lyr, acquired with a typical cadence of 2-6 days, is examined for periodic and quasi-periodic variations. No persistent periodicities are revealed. Rather, the light curve variations often take the form of nearly linear rises and falls having typical e-folding times of about 100 days. Occasional ?0.6 mag outbursts are also seen, with properties similar to those of small outbursts found in some nova-like cataclysmic variables. When the photometry is formed into yearly averages, a decline of 0.012 0.005 mag yr{sup 1} is apparent, consistent with the fading of irradiation-induced M-dot following the nova. The equivalent width of H? is tabulated at three epochs over the interval 1986-2008 in order to compare with a recent result for DK Lac in which H? was found to be fading 50 yr after the nova. However, our results for such a fading in HR Lyr are inconclusive.

  7. Driven Around the Bend: Novel Use of a Curved Steerable Needle

    SciTech Connect

    Murphy, Darra T. Korzan, Jeffrey R.; Ouellette, Hugue A.; Liu, David M.; Clarkson, Paul W.; Munk, Peter L.

    2013-04-15

    This technical note describes the novel use of a curved, steerable needle to access symptomatic osseous lesions in the pelvis and sacrum for palliative percutaneous treatment that would otherwise be difficult to treat using conventional straight needles. Seven patients with lytic bone lesions were treated. One patient had multiple myeloma; the remaining had metastatic disease: breast carcinoma (n = 2), colorectal carcinoma (n = 1), renal cell carcinoma (n = 1), squamous cell carcinoma (n = 1), and leiomyosarcoma (n = 1). Five of the seven patients had lesions in the posterior acetabulum, and the two other patients had lesions in the sacrum. Four of the seven patients received radiofrequency ablation followed by cementoplasty; three patients received cementation alone. We used a novel needle designed for vertebroplasty, which has an articulating tip allowing it to be guided into lytic bone lesions located in difficult-to-access regions of the pelvis and sacrum. All patients were successfully treated with cementoplasty either with or without thermal ablation. No serious adverse events were reported. The needle was difficult to withdraw in two patients. Steerable curved needles can be successfully used to treat lytic osseous metastases with cementoplasty when lesions are located in sites that may be difficult to reach using conventional straight needles.

  8. Theoretical calculation of the melting curve of Cu-Zr binary alloys

    SciTech Connect

    Gunawardana, K. G.S.H.; Wilson, S. R.; Mendelev, M. I.; Song, Xueyu

    2014-11-14

    Helmholtz free energies of the dominant binary crystalline solids found in the Cu-Zr system at high temperatures close to the melting curve are calculated. This theoretical approach combines fundamental measure density functional theory (applied to the hard-sphere reference system) and a perturbative approach to include the attractive interactions. The studied crystalline solids are Cu(fcc), Cu51Zr14(β), CuZr(B2), CuZr2(C11b), Zr(hcp), and Zr(bcc). The calculated Helmholtz free energies of crystalline solids are in good agreement with results from molecular-dynamics (MD) simulations. Using the same perturbation approach, the liquid phase free energies are calculated as a function of composition and temperature, from which the melting curve of the entire composition range of this system can be obtained. Phase diagrams are determined in this way for two leading embedded atom method potentials, and the results are compared with experimental data. Furthermore, theoretical melting temperatures are compared both with experimental values and with values obtained directly from MD simulations at several compositions.

  9. Theoretical calculation of the melting curve of Cu-Zr binary alloys

    DOE PAGES [OSTI]

    Gunawardana, K. G.S.H.; Wilson, S. R.; Mendelev, M. I.; Song, Xueyu

    2014-11-14

    Helmholtz free energies of the dominant binary crystalline solids found in the Cu-Zr system at high temperatures close to the melting curve are calculated. This theoretical approach combines fundamental measure density functional theory (applied to the hard-sphere reference system) and a perturbative approach to include the attractive interactions. The studied crystalline solids are Cu(fcc), Cu51Zr14(β), CuZr(B2), CuZr2(C11b), Zr(hcp), and Zr(bcc). The calculated Helmholtz free energies of crystalline solids are in good agreement with results from molecular-dynamics (MD) simulations. Using the same perturbation approach, the liquid phase free energies are calculated as a function of composition and temperature, from which themore » melting curve of the entire composition range of this system can be obtained. Phase diagrams are determined in this way for two leading embedded atom method potentials, and the results are compared with experimental data. Furthermore, theoretical melting temperatures are compared both with experimental values and with values obtained directly from MD simulations at several compositions.« less

  10. Radial velocity curves of ellipsoidal red giant binaries in the Large Magellanic Cloud

    SciTech Connect

    Nie, J. D.; Wood, P. R. E-mail: peter.wood@anu.edu.au

    2014-12-01

    Ellipsoidal red giant binaries are close binary systems where an unseen, relatively close companion distorts the red giant, leading to light variations as the red giant moves around its orbit. These binaries are likely to be the immediate evolutionary precursors of close binary planetary nebula and post-asymptotic giant branch and post-red giant branch stars. Due to the MACHO and OGLE photometric monitoring projects, the light variability nature of these ellipsoidal variables has been well studied. However, due to the lack of radial velocity curves, the nature of their masses, separations, and other orbital details has so far remained largely unknown. In order to improve this situation, we have carried out spectral monitoring observations of a large sample of 80 ellipsoidal variables in the Large Magellanic Cloud and we have derived radial velocity curves. At least 12 radial velocity points with good quality were obtained for most of the ellipsoidal variables. The radial velocity data are provided with this paper. Combining the photometric and radial velocity data, we present some statistical results related to the binary properties of these ellipsoidal variables.

  11. Cosmological parameter uncertainties from SALT-II type Ia supernova light curve models

    SciTech Connect

    Mosher, J.; Sako, M. [Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104 (United States); Guy, J.; Astier, P.; Betoule, M.; El-Hage, P.; Pain, R.; Regnault, N. [LPNHE, CNRS/IN2P3, Universit Pierre et Marie Curie Paris 6, Universi Denis Diderot Paris 7, 4 place Jussieu, F-75252 Paris Cedex 05 (France); Kessler, R.; Frieman, J. A. [Kavli Institute for Cosmological Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637 (United States); Marriner, J. [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States); Biswas, R.; Kuhlmann, S. [Argonne National Laboratory, 9700 South Cass Avenue, Lemont, IL 60439 (United States); Schneider, D. P., E-mail: kessler@kicp.chicago.edu [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States)

    2014-09-20

    We use simulated type Ia supernova (SN Ia) samples, including both photometry and spectra, to perform the first direct validation of cosmology analysis using the SALT-II light curve model. This validation includes residuals from the light curve training process, systematic biases in SN Ia distance measurements, and a bias on the dark energy equation of state parameter w. Using the SN-analysis package SNANA, we simulate and analyze realistic samples corresponding to the data samples used in the SNLS3 analysis: ?120 low-redshift (z < 0.1) SNe Ia, ?255 Sloan Digital Sky Survey SNe Ia (z < 0.4), and ?290 SNLS SNe Ia (z ? 1). To probe systematic uncertainties in detail, we vary the input spectral model, the model of intrinsic scatter, and the smoothing (i.e., regularization) parameters used during the SALT-II model training. Using realistic intrinsic scatter models results in a slight bias in the ultraviolet portion of the trained SALT-II model, and w biases (w {sub input} w {sub recovered}) ranging from 0.005 0.012 to 0.024 0.010. These biases are indistinguishable from each other within the uncertainty; the average bias on w is 0.014 0.007.

  12. Closed loop engine control for regulating NOx emissions, using a two-dimensional fuel-air curve

    DOEpatents

    Bourn, Gary D.; Smith, Jack A.; Gingrich, Jess W.

    2007-01-30

    An engine control strategy that ensures that NOx emissions from the engine will be maintained at an acceptable level. The control strategy is based on a two-dimensional fuel-air curve, in which air manifold pressure (AMP) is a function of fuel header pressure and engine speed. The control strategy provides for closed loop NOx adjustment to a base AMP value derived from the fuel-air curve.

  13. Advanced uranium enrichment technologies

    SciTech Connect

    Merriman, R.

    1983-03-10

    The Advanced Gas Centrifuge and Atomic Vapor Laser Isotope Separation methods are described. The status and potential of the technologies are summarized, the programs outlined, and the economic incentives are noted. How the advanced technologies, once demonstrated, might be deployed so that SWV costs in the 1990s can be significantly reduced is described.

  14. Gasification: A Cornerstone Technology

    ScienceCinema

    Gary Stiegel

    2016-07-12

    NETL is a leader in the science and technology of gasification - a process for the conversion of carbon-based materials such as coal into synthesis gas (syngas) that can be used to produce clean electrical energy, transportation fuels, and chemicals efficiently and cost-effectively using domestic fuel resources. Gasification is a cornerstone technology of 21st century zero emissions powerplants

  15. Gasification: A Cornerstone Technology

    SciTech Connect

    Gary Stiegel

    2008-03-26

    NETL is a leader in the science and technology of gasification - a process for the conversion of carbon-based materials such as coal into synthesis gas (syngas) that can be used to produce clean electrical energy, transportation fuels, and chemicals efficiently and cost-effectively using domestic fuel resources. Gasification is a cornerstone technology of 21st century zero emissions powerplants

  16. Additive Manufacturing Technology Assessment

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Additive Manufacturing 1 Technology Assessment 2 1. Contents 3 1. Introduction to the Technology/System ............................................................................................... 2 4 1.1 Introduction to Additive Manufacturing ....................................................................................... 2 5 1.2 Additive Manufacturing Processes ............................................................................................... 2 6 1.3 Benefits of Additive

  17. Technology Readiness Assessment Guide

    Directives, Delegations, and Other Requirements [Office of Management (MA)]

    2011-09-15

    This document was developed to assist individuals and teams that will be involved in conducting Technology Readiness Assessments (TRAs) and developing Technology Maturation Plans (TMPs) for the Department of Energy (DOE) capital acquisition assets subjects to DOE O 413.3B.

  18. Technology Readiness Assessment (TRA)/Technology Maturation Plan (TMP)

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Process Guide | Department of Energy Readiness Assessment (TRA)/Technology Maturation Plan (TMP) Process Guide Technology Readiness Assessment (TRA)/Technology Maturation Plan (TMP) Process Guide This document is a guide for those involved in conducting TRAs and developing TMPs for DOE-EM. Technology Readiness Assessment (TRA)/Technology Maturation Plan (TMP) Process Guide (1.19 MB) More Documents & Publications Technology Readiness Assessment Report Small Column Ion Exchange Technology

  19. Accelerating Spectrum Sharing Technologies

    SciTech Connect

    Juan D. Deaton; Lynda L. Brighton; Rangam Subramanian; Hussein Moradi; Jose Loera

    2013-09-01

    Spectrum sharing potentially holds the promise of solving the emerging spectrum crisis. However, technology innovators face the conundrum of developing spectrum sharing technologies without the ability to experiment and test with real incumbent systems. Interference with operational incumbents can prevent critical services, and the cost of deploying and operating an incumbent system can be prohibitive. Thus, the lack of incumbent systems and frequency authorization for technology incubation and demonstration has stymied spectrum sharing research. To this end, industry, academia, and regulators all require a test facility for validating hypotheses and demonstrating functionality without affecting operational incumbent systems. This article proposes a four-phase program supported by our spectrum accountability architecture. We propose that our comprehensive experimentation and testing approach for technology incubation and demonstration will accelerate the development of spectrum sharing technologies.

  20. The Governance of Nuclear Technology

    SciTech Connect

    Vergino, E S; May, M

    2003-09-22

    Eisenhower's Atoms for Peace speech in 1953 is remembered for engaging the world, and the Soviet Union in particular, in a dialogue about arms control and the formulation of a nuclear regime in which national and international security concerns growing from this unprecedented emerging and frightening new weapons capability would be addressed while tapping the civilian promise of nuclear applications for the good of mankind. Out of it came a series of initiatives, leading fifteen years later to the NPT, intended to allow the growth and spread of the beneficial uses of nuclear know-how while constraining the incentives and capabilities for nuclear weapons. The last 50 years has seen a gradual spread in nations with nuclear weapons, other nations with nuclear knowledge and capabilities, and still others with nuclear weapon intentions. Still most nations of the world have forgone weapon development, most have signed and abided by the NPT, and some that have had programs or even weapons, have turned these capabilities off. Yet despite this experience, and despite a relatively successful record up to a few years ago, there is today a clear and generally recognized crisis in nuclear governance, a crisis that affects the future of all the cross-cutting civilian/security issues we have cited. The crux of this crisis is a lack of consensus among the major powers whose support of international efforts is necessary for effective governance of nuclear activities. The lack of consensus focuses on three challenges: what to do about non-compliance, what to do about non-adherence, and what to do about the possible leakage of nuclear materials and technologies to terrorist groups. Short of regaining consensus on the priority to be given to nuclear material and technology controls, it is unlikely that any international regime to control nuclear materials and technologies, let alone oversee a growth in the nuclear power sector, will be successful in the tough cases where it needs to

  1. Comparison of horizontal load transfer curves for laterally loaded piles from strain gages and slope inclinometer: A case study

    SciTech Connect

    Pinto, P.L.; Anderson, B.; Townsend, F.C.

    1999-07-01

    Laterally loaded deep foundations are commonly analyzed using the Winkler model with the soil-pile interaction modeled through nonlinear springs in the form of p-y curves. Computer programs such as FloridaPier and COM624P use default p-y curves when performing lateral analyses. These curves are based on input soil properties such as subgrade modulus, friction angle, undrained shear strength, etc. Soil properties must be deduced by laboratory testing or correlation to in situ test results. This is a source of uncertainty. In a few cases, lateral load tests are performed on instrumented piles, and the validity of such assumptions can be assessed. Test piles are commonly instrumented with strain gages and/or inclinometers. P-y curves can be back computed from these data, and the curves obtained with the two methods should agree closely. Results from a field test on a concrete pile are presented and the critical factors for the analysis are discussed. One added difficulty with concrete is its nonlinear behavior particularly near structural failure. The curves obtained are also compared with those developed from the Dilatometer/Cone Pressuremeter Test and the Standard Penetration Test.

  2. Application of Direct Current Potential Drop for the J-integral vs. Crack Growth Resistance Curve Characterization

    SciTech Connect

    Chen, Xiang; Nanstad, Randy K; Sokolov, Mikhail A

    2014-01-01

    The direct current potential drop (DCPD) technique has been applied to derive the J-integral vs. crack growth resistance curve (J-R curve) for fracture toughness characterization of structural materials. The test matrix covered three materials including type 316LN stainless steels, Ni-based alloy 617, and one ferritic-martensitic steel, three specimen configurations including standard compact, single edge bending, and disk-shaped compact specimens, and temperatures ranging from 20 C to 650 C. When compared with baseline J-R curves derived from the ASTM normalization method, the original J-R curves from the DCPD technique yielded much smaller Jq values due to the influence of crack blunting, plastic deformation, etc. on potential drop. To counter these effects, a new procedure for adjusting DCPD J-R curves was proposed. After applying the new adjustment procedure, the average difference in Jq between the DCPD technique and the normalization method was only 5.2% and the difference in tearing modulus was 7.4%. The promising result demonstrates the applicability of the DCPD technique for the J-R curve characterization especially in extreme environments, such as elevated temperatures, where the conventional elastic unloading compliance method faces considerable challenges.

  3. POSSIBLE ALTERATION OF ROCKS OBSERVED BY CHEMCAM ALONG THE TRAVERSE...

    Office of Scientific and Technical Information (OSTI)

    TO GLENELG IN GALE CRATER ON MARS. Citation Details In-Document Search Title: POSSIBLE ALTERATION OF ROCKS OBSERVED BY CHEMCAM ALONG THE TRAVERSE TO GLENELG IN GALE CRATER ON ...

  4. Assessment of Possible Cycle Lengths for Fully-Ceramic Micro...

    Office of Scientific and Technical Information (OSTI)

    Light Water Reactor Concepts Citation Details In-Document Search Title: Assessment of Possible Cycle Lengths for Fully-Ceramic Micro-Encapsulated Fuel-Based Light Water Reactor ...

  5. Water Technology Research | Argonne National Laboratory

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Water Technology Research Wastewater treatment plant Wastewater treatment plant Water is an increasingly valuable natural resource. By identifying typical sources and distribution of microbial communities in waterways, researchers can develop hydrological models that incorporate the microbial data, laying out how water flows from different sources and how rain events affect bacterial diversity and count. For example, by studying how microbes flourish in specific areas, it may be possible to

  6. Isotope research opens new possibilities for cancer treatment

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Isotope research opens new possibilities for cancer treatment Isotope research opens new possibilities for cancer treatment The insights from this study could provide the needed chemical information to develop ways to bind actinium so that it can be safely transported through the body to the tumor cell. August 17, 2016 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering

  7. Huge Potential for Hydropower: Assessment Highlights New Possible Clean

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Sources | Department of Energy Huge Potential for Hydropower: Assessment Highlights New Possible Clean Energy Sources Huge Potential for Hydropower: Assessment Highlights New Possible Clean Energy Sources April 29, 2014 - 11:09am Addthis A new assessment conducted by Oak Ridge National Laboratory has identified more than 65 gigawatts of untapped hydropower potential in U.S. rivers and streams. A new assessment conducted by Oak Ridge National Laboratory has identified more than 65

  8. Jupyter Notebooks Will Open up New Possibilities on NERSC's Cori

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Supercomputer Jupyter Notebooks Will Open up New Possibilities on NERSC's Cori Supercomputer Jupyter Notebooks Will Open up New Possibilities on NERSC's Cori Supercomputer November 2, 2016 Contact: Jon Bashor, jbashor@lbl.gov, 510-486-5849 Cori Jupyter Cori Supercomputer at Berkeley Lab (Photo by Roy Kaltschmidt, Berkeley Lab) The Department of Energy's National Energy Research Scientific Computing Center (NERSC) is using Jupyter notebooks to help users more easily access computing resources

  9. Exploring the Possibilities of the Smallest Scales | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Possibilities of the Smallest Scales Exploring the Possibilities of the Smallest Scales July 2, 2013 - 3:56pm Addthis Whether producing simple metallic pads for probing exciting new nanoscale systems or structuring more complicated geometries into silicon and other materials, nanofabrication lies at the heart of much of the work at Brookhaven's Center for Functional Nanomaterials (CFN). Inside the nanofabrication facility are three bays filled with state-of-the-art equipment available for use by

  10. S3TEC Cross Cutting Meeting- New possibilities with thermoelectric

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    materials | Solid State Solar Thermal Energy Conversion Cross Cutting Meeting- New possibilities with thermoelectric materials Seminar Tuesday Oct 4, 2016 12:00pm Location: 5-314 New possibilities with thermoelectric materials Half-Heusler and Zintl are two broad material families where people have continuously discovered good thermoelectric materials. However, their transport properties are not all well understood, and more importantly, simulating the transport properties of these materials

  11. Supercomputing: Eye-Opening Possibilities in Imaging | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Supercomputing: Eye-Opening Possibilities in Imaging Supercomputing: Eye-Opening Possibilities in Imaging September 20, 2013 - 5:00pm Addthis This overlay of mass spectrometry images shows the spatial distribution of three different kind of lipids across a whole mouse cross-section. Lipids act as the structural components of cell membranes and are responsible for energy storage, among other things. | Photo courtesy of Wolfgang Reindl (Berkeley Lab). This overlay of mass spectrometry images shows

  12. Heavy surface state in a possible topological Kondo insulator:

    Office of Scientific and Technical Information (OSTI)

    Magnetothermoelectric transport on the (011) plane of SmB6 (Journal Article) | DOE PAGES Accepted Manuscript: Heavy surface state in a possible topological Kondo insulator: Magnetothermoelectric transport on the (011) plane of SmB 6 Title: Heavy surface state in a possible topological Kondo insulator: Magnetothermoelectric transport on the (011) plane of SmB 6 Motivated by the high sensitivity to Fermi surface topology and scattering mechanisms in magnetothermoelectric transport, we have

  13. Robotics Technology Development Program. Technology summary

    SciTech Connect

    Not Available

    1994-02-01

    The Robotics Technology Development Program (RTDP) is a ``needs-driven`` effort. A lengthy series of presentations and discussions at DOE sites considered critical to DOE`s Environmental Restoration and Waste Management (EM) Programs resulted in a clear understanding of needed robotics applications toward resolving definitive problems at the sites. A detailed analysis of the Tank Waste Retrieval (TWR), Contaminant Analysis Automation (CAA), Mixed Waste Operations (MWO), and Decontamination & Dismantlement (D&D). The RTDP Group realized that much of the technology development was common (Cross Cutting-CC) to each of these robotics application areas, for example, computer control and sensor interface protocols. Further, the OTD approach to the Research, Development, Demonstration, Testing, and Evaluation (RDDT&E) process urged an additional organizational break-out between short-term (1--3 years) and long-term (3--5 years) efforts (Advanced Technology-AT). The RDTP is thus organized around these application areas -- TWR, CAA, MWO, D&D and CC&AT -- with the first four developing short-term applied robotics. An RTDP Five-Year Plan was developed for organizing the Program to meet the needs in these application areas.

  14. Photovoltaic manufacturing technology, Phase 1

    SciTech Connect

    Not Available

    1992-10-01

    This report describes subcontracted research by the Chronar Corporation, prepared by Advanced Photovoltaic Systems, Inc. (APS) for Phase 1 of the Photovoltaic Manufacturing Technology Development project. Amorphous silicon is chosen as the PV technology that Chronar Corporation and APS believe offers the greatest potential for manufacturing improvements, which, in turn, will result in significant cost reductions and performance improvements in photovoltaic products. The APS Eureka'' facility was chosen as the manufacturing system that can offer the possibility of achieving these production enhancements. The relationship of the Eureka'' facility to Chronar's batch'' plants is discussed. Five key areas are also identified that could meet the objectives of manufacturing potential that could lead to improved performance, reduced manufacturing costs, and significantly increased production. The projected long-term potential benefits of these areas are discussed, as well as problems that may impede the achievement of the hoped-for developments. A significant number of the problems discussed are of a generic nature and could be of general interest to the industry. The final section of this document addresses the cost and time estimates for achieving the solutions to the problems discussed earlier. Emphasis is placed on the number, type, and cost of the human resources required for the project.

  15. Overview of the latest nondestructive assay technology

    SciTech Connect

    Geist, William H; Santi, Peter A; Swinhoe, Martyn T

    2009-01-01

    Nondestructive Assay (NDA) techniques are an important tool for the safeguarding of nuclear materials. NDA techniques are used by inspectors from both domestic agencies and international agencies such as the International Atomic Energy Agency as well as site level nuclear material management programs to verify that inventories of nuclear materials. This technology has been in development for over 40 years and significant improvements in detector capabilities, electronics processing and data analysis has lead to new detection capabilities and greatly improved quantification of nuclear materials. Many of the improvements over the last decade have resulted from improved computing power. This has lead to the ability to collect and analyze data in ways not possible only years ago. This poster will present some of the improvements of nondestructive assay technologies over the past several years and the implementation of these technologies in nuclear safeguards programs.

  16. Technology Convergence and National Security

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Technology Commercialization Fund Technology Commercialization Fund A core responsibility of the Office of Technology Transitions, and the Technology Transfer Coordinator, is to oversee the expenditure of DOE technology transfer funds. The office is responsible for implementing the Technology Commercialization Fund (TCF) authorized in section 1001 of the Energy Policy Act of 2005. It states, as amended: "The Secretary shall establish an Energy Technology Commercialization Fund, using 0.9%

  17. A Calibrated Maxey-Eakin Curve for the Fenner Basin of the Eastern Mojave Desert, California

    SciTech Connect

    Davisson, M.L.; Rose, T.P.

    2000-05-15

    Metropolitan Water District (MWD) of southern California and Cadiz Inc. investigated the feasibility of storing Colorado River water in groundwater aquifers of the eastern Mojave Desert as a future drought mitigation strategy. This culminated in the public release of the Cadiz Groundwater Storage and Dry-Year Supply program Draft EIR, which included pilot percolation studies, groundwater modeling, and precipitation/runoff analysis in the Fenner groundwater basin, which overlies the proposed storage site. The project proposes to store and withdrawal Colorado River water over a 50-year period, but will not exceed the natural replenishment rates of the groundwater basin. Several independent analyses were conducted to estimate the rates of natural groundwater replenishment to the Fenner Groundwater Basin, which was included in the Draft EIR. The US Geologic Survey, Water Resources Division (WRD) officially submitted comments during public review and concluded that the natural groundwater replenishment rates calculated for the Draft EIR were too high. In the WRD review, they provided a much lower recharge calculation based on a Maxey-Eakin estimation approach. This approach estimates annual precipitation over an entire basin as a function of elevation, followed by calibration against annual recharge rates. Recharge rates are estimated on the basis that some fraction of annual precipitation will recharge, and that fraction will increase with increasing elevation. This results in a hypothetical curve relating annual groundwater recharge to annual precipitation. Field validation of recharge rates is critical in order to establish credibility to any estimate. This is due to the fact that the Maxey-Eakin model is empirical. An empirical model is derived from practical experience rather than basic theory. Therefore, a validated Maxey-Eakin model in one groundwater basin does not translate to a different one. In the WRD's Maxey-Eakin model, they used a curve calibrated against

  18. Technology Transfer and Commercialization Annual Report 2008

    SciTech Connect

    Michelle R. Blacker

    2008-12-01

    The Idaho National Laboratory (INL) is a Department of Energy (DOE) multi-program national laboratory that conducts research and development in all DOE mission areas. Like all other federal laboratories, INL has a statutory, technology transfer mission to make its capabilities and technologies available to all federal agencies, to state and local governments, and to universities and industry. To fulfill this mission, INL encourages its scientific, engineering, and technical staff to disclose new inventions and creations to ensure the resulting intellectual property is captured, protected, and made available to others who might benefit from it. As part of the mission, intellectual property is licensed to industrial partners for commercialization, creating jobs and delivering the benefits of federally funded technology to consumers. In other cases, unique capabilities are made available to other federal agencies or to regional small businesses to solve specific technical challenges. In other interactions, INL employees work cooperatively with researchers and other technical staff of our partners to further develop emerging technologies. This report is a catalog of selected INL technology transfer and commercialization transactions during this past year. The size and diversity of INL technical resources, coupled with the large number of relationships with other organizations, virtually ensures that a report of this nature will fail to capture all interactions. Recognizing this limitation, this report focuses on transactions that are specifically authorized by technology transfer legislation (and corresponding contractual provisions) or involve the transfer of legal rights to technology to other parties. This report was compiled from primary records, which were readily available to the INL’s Office of Technology Transfer & Commercialization. The accomplishments cataloged in the report, however, reflect the achievements and creativity of the highly skilled researchers

  19. PID Failure of c-Si and Thin-Film Modules and Possible Correlation with Leakage Currents

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    NREL PV Module Reliability Workshop, Golden, Feb 26/27, 2013 PID Failure of c-Si and Thin-Film Modules and Possible Correlation with Leakage Currents Peter Lechner Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW) Stuttgart, Germany Zentrum für Sonnenenergie- und Wasserstoff-Forschung Baden-Württemberg (ZSW) ZSW is a non-profit foundation with 200 employees The focus is on Photovoltaics - Thin-Film Technology Fuel Cells and Hydrogen Technology Electrochemical

  20. Science & Technology - 2016

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    technology / 2016 / august Science & Technology - 2016 August Take a Virtual Tour of NIF NIF Ultrathin Polymer Film Is an R&D 100 Finalist A robust, scalable method of fabricating freestanding polymer films that are larger, stronger and thinner than conventionally produced films has been named a 2016 R&D 100 finalist. R&D 100 awards recognize the most revolutionary technologies introduced to the market in a given year. This year's R&D 100 winners will be announced at an

  1. Agricultural Equipment Technology Conference

    Energy.gov [DOE]

    The 20th Agricultural Equipment Technology Conference will be held Feb. 8–10, 2016, in Louisville, Kentucky. The conference will bring together professionals and experts in the agricultural and biological engineering fields. Bioenergy Technologies Office (BETO) Terrestrial Feedstocks Technology Manager Sam Tagore will be in attendance. Mr. Tagore will moderate a technical session titled “Ash Reduction Strategies for Improving Biomass Feedstock Quality.” The session will include presentations by researchers from Idaho National Laboratory and Oak Ridge National Laboratory supporting BETO, as well as from university and industry.

  2. OHVT technology roadmap [2000

    SciTech Connect

    Bradley, R.A.

    2000-02-01

    The OHVT Technology Roadmap for 2000 presents the multiyear program plan of the U.S. DOE's Office of Heavy Vehicle Technologies (OHVT). It is an update of the 1997 plan, reflecting changes in regulations and ongoing discussions with DOE's heavy vehicle customers. The technical plan covers three classes of trucks: (1) class 7-8 (large, on-highway trucks); (2) class 3-6 (medium duty trucks); (3) class 1-2 (pickups, vans, and sport utility vehicles) as well as enabling and supporting technologies. The Roadmap documents program goals, schedules, and milestones.

  3. Annual Technology Baseline

    Energy.gov [DOE]

    The National Renewable Energy Laboratory is conducting a study sponsored by the U.S. Department of Energy DOE, Office of Energy Efficiency and Renewable Energy (EERE), that aims to document and implement an annual process designed to identify a realistic and timely set of input assumptions (e.g., technology cost and performance, fuel costs), and a diverse set of potential futures (standard scenarios), initially for electric sector analysis. This primary product of the Annual Technology Baseline (ATB) project component includes detailed cost and performance data (both current and projected) for both renewable and conventional technologies. This data is presented in MS Excel.

  4. Galaxy luminosity function and Tully-Fisher relation: reconciled through rotation-curve studies

    SciTech Connect

    Cattaneo, Andrea; Salucci, Paolo; Papastergis, Emmanouil E-mail: salucci@sissa.it

    2014-03-10

    The relation between galaxy luminosity L and halo virial velocity v {sub vir} required to fit the galaxy luminosity function differs from the observed Tully-Fisher relation between L and disk speed v {sub rot}. Because of this, the problem of reproducing the galaxy luminosity function and the Tully-Fisher relation simultaneously has plagued semianalytic models since their inception. Here we study the relation between v {sub rot} and v {sub vir} by fitting observational average rotation curves of disk galaxies binned in luminosity. We show that the v {sub rot}-v {sub vir} relation that we obtain in this way can fully account for this seeming inconsistency. Therefore, the reconciliation of the luminosity function with the Tully-Fisher relation rests on the complex dependence of v {sub rot} on v {sub vir}, which arises because the ratio of stellar mass to dark matter mass is a strong function of halo mass.

  5. Analytical solution of laminar-laminar stratified two-phase flows with curved interfaces

    SciTech Connect

    Brauner, N.; Rovinsky, J.; Maron, D.M.

    1995-09-01

    The present study represents a complete analytical solution for laminar two-phase flows with curved interfaces. The solution of the Navier-Stokes equations for the two-phases in bipolar coordinates provides the `flow monograms` describe the relation between the interface curvature and the insitu flow geometry when given the phases flow rates and viscosity ratios. Energy considerations are employed to construct the `interface monograms`, whereby the characteristic interfacial curvature is determined in terms of the phases insitu holdup, pipe diameter, surface tension, fluids/wall adhesion and gravitation. The two monograms are then combined to construct the system `operational monogram`. The `operational monogram` enables the determination of the interface configuration, the local flow characteristics, such as velocity profiles, wall and interfacial shear stresses distribution as well as the integral characteristics of the two-phase flow: phases insitu holdup and pressure drop.

  6. Zirconium Determination by Cooling Curve Analysis during the Pyroprocessing of Used Nuclear Fuel

    SciTech Connect

    B.R. Westphal; J.C. Price; K.J. Bateman; K.C. Marsden

    2001-03-01

    An alternative method to sampling and chemical analyses has been developed to monitor the concentration of zirconium in real-time during the casting of uranium products from the pyroprocessing of used nuclear fuel. The method utilizes the solidification characteristics of the uranium products to determine zirconium levels based on standard cooling curve analyses and established binary phase diagram data. Numerous uranium products have been analyzed for their zirconium content and compared against measured zirconium data. From this data, a relationship was derived that incorporates the mass dependency of the uranium products since solidification monitoring is performed external to the melt. Using the relationship, a reasonable fit of calculated to measured zirconium content was established considering the errors in the system.

  7. Quantum field theory in spaces with closed time-like curves. [Gott space

    SciTech Connect

    Boulware, D.G.

    1992-01-01

    Gott spacetime has closed timelike curves, but no locally anomalous stress-energy. A complete orthonormal set of eigenfunctions of the wave operator is found in the special case of a spacetime in which the total deficit angle is 27[pi]. A scalar quantum field theory is constructed using these eigenfunctions. The resultant interacting quantum field theory is not unitary because the field operators can create real, on-shell, particles in the acausal region. These particles propagate for finite proper time accumulating an arbitrary phase before being annihilated at the same spacetime point as that at which they were created. As a result, the effective potential within the acausal region is complex, and probability is not conserved. The stress tensor of the scalar field is evaluated in the neighborhood of the Cauchy horizon; in the case of a sufficiently small Compton wavelength of the field, the stress tensor is regular and cannot prevent the formation of the Cauchy horizon.

  8. Quantum field theory in spaces with closed time-like curves

    SciTech Connect

    Boulware, D.G.

    1992-12-31

    Gott spacetime has closed timelike curves, but no locally anomalous stress-energy. A complete orthonormal set of eigenfunctions of the wave operator is found in the special case of a spacetime in which the total deficit angle is 27{pi}. A scalar quantum field theory is constructed using these eigenfunctions. The resultant interacting quantum field theory is not unitary because the field operators can create real, on-shell, particles in the acausal region. These particles propagate for finite proper time accumulating an arbitrary phase before being annihilated at the same spacetime point as that at which they were created. As a result, the effective potential within the acausal region is complex, and probability is not conserved. The stress tensor of the scalar field is evaluated in the neighborhood of the Cauchy horizon; in the case of a sufficiently small Compton wavelength of the field, the stress tensor is regular and cannot prevent the formation of the Cauchy horizon.

  9. Photonic devices on planar and curved substrates and methods for fabrication thereof

    DOEpatents

    Bartl, Michael H.; Barhoum, Moussa; Riassetto, David

    2016-08-02

    A versatile and rapid sol-gel technique for the fabrication of high quality one-dimensional photonic bandgap materials. For example, silica/titania multi-layer materials may be fabricated by a sol-gel chemistry route combined with dip-coating onto planar or curved substrate. A shock-cooling step immediately following the thin film heat-treatment process is introduced. This step was found important in the prevention of film crack formation--especially in silica/titania alternating stack materials with a high number of layers. The versatility of this sol-gel method is demonstrated by the fabrication of various Bragg stack-type materials with fine-tuned optical properties by tailoring the number and sequence of alternating layers, the film thickness and the effective refractive index of the deposited thin films. Measured optical properties show good agreement with theoretical simulations confirming the high quality of these sol-gel fabricated optical materials.

  10. Multiphasic survival curves for cells of human tumor cell lines: Induced repair or hypersensitive subpopulation?

    SciTech Connect

    Lambin, P. ||; Fertil, B.; Malaise, E.P.; Joiner, M.C.

    1994-04-01

    Survival of the cells of three human tumor cell lines of differing radiosensitivity was measured after irradiation with single doses of X rays (0.05-5 Gy). At doses below 1 Gy, cells were more radiosensitive than predicted by back-extrapolating the high-dose response. This difference was more marked for cells of the radioresistant cell lines than the radiosensitive cell line so that the {open_quotes}true{close_quotes} initial slopes of the survival curves, at very low doses, were similar for the cells of the three cell lines. This phenomenon could reflect an induced radioresistance so that low doses of X rays are more effective per gray than higher doses, because only at higher doses is there sufficient damage to trigger repair systems or other radioprotective mechanisms which can then act during the time course for repair of DNA injury. 35 refs., 2 figs.

  11. GAMMA-RAY BURST AFTERGLOW LIGHT CURVES FROM A LORENTZ-BOOSTED SIMULATION FRAME AND THE SHAPE OF THE JET BREAK

    SciTech Connect

    Van Eerten, Hendrik; MacFadyen, Andrew

    2013-04-20

    The early stages of decelerating gamma-ray burst (GRB) afterglow jets have been notoriously difficult to resolve numerically using two-dimensional hydrodynamical simulations even at very high resolution, due to the extreme thinness of the blast wave and high outflow Lorentz factors. However, these resolution issues can be avoided by performing the simulations in a boosted frame, which makes it possible to calculate afterglow light curves from numerically computed flows in sufficient detail to accurately quantify the shape of the jet break and the post-break steepening of the light curve. Here, we study afterglow jet breaks for jets with opening angles of 0.05, 0.1, and 0.2 radians decelerating in a surrounding medium of constant density, observed at various angles ranging from on-axis to the edge of the jet. A single set of scale-invariant functions describing the time evolution of afterglow synchrotron spectral break frequencies and peak flux, depending only on jet opening angle and observer angle, are all that is needed to reconstruct light curves for arbitrary explosion energy, circumburst density and synchrotron particle distribution power law slope p. These functions are presented in the paper. Their time evolutions change directly following the jet break, although an earlier reported temporary post-break steepening of the cooling break is found to have been resolution-induced. We compare synthetic light curves to fit functions using sharp power law breaks as well as smooth power law transitions. We confirm our earlier finding that the measured jet break time is very sensitive to the angle of the observer and can be postponed significantly. We find that the difference in temporal indices across the jet break is larger than theoretically anticipated and is about -(0.5 + 0.5p) below the cooling break and about -(0.25 + 0.5p) above the cooling break, both leading to post-break slopes of roughly about 0.25 - 1.3p, although different observer angles, jet opening

  12. The long-term light curve of the cataclysmic variable V794 Aquilae

    SciTech Connect

    Honeycutt, R. K.; Kafka, S.; Robertson, J. W. E-mail: skafka@aip.org

    2014-01-01

    The 1990-2012 light curve of the nova-like (NL) cataclysmic variable V794 Aql is studied in order to characterize and better understand the transitions to and from the faint state, and the variations within the bright state. Investigations of earlier portions of this data had concluded that the transitions to the low state were much slower than the rapid recovery, giving a sawtoothed appearance to the light curve. This behavior differs from that of most other VY Scl stars, which led to an interpretation of the large amplitude sawtooths as being due to an accretion disk (AD) instability. However, more recent photometry strongly suggests that the bright state itself has transitions of 1-1.5 mag, and that earlier studies had intermixed these bright state variations with the transitions to the low state. These newly recognized variations within the bright state sometimes appear as small outbursts (OBs) with typical amplitudes of 0.5-1.5 mag and spacings of ?15-50 days. The rise times of the OBs are 2-3 times faster than the decline times. We argue that the V794 Aql bright state variations are due to AD behavior similar to that seen in dwarf novae, but with varying degrees of stability. Similar regular small OBs have also been reported in other NL CVs, which we compare with V794 Aql. The true deep low states in V794 Aql appear to be normal, having transition speeds and shapes very similar to the transitions in other VY Scl stars.

  13. The EB factory project. I. A fast, neural-net-based, general purpose light curve classifier optimized for eclipsing binaries

    SciTech Connect

    Paegert, Martin; Stassun, Keivan G.; Burger, Dan M.

    2014-08-01

    We describe a new neural-net-based light curve classifier and provide it with documentation as a ready-to-use tool for the community. While optimized for identification and classification of eclipsing binary stars, the classifier is general purpose, and has been developed for speed in the context of upcoming massive surveys such as the Large Synoptic Survey Telescope. A challenge for classifiers in the context of neural-net training and massive data sets is to minimize the number of parameters required to describe each light curve. We show that a simple and fast geometric representation that encodes the overall light curve shape, together with a chi-square parameter to capture higher-order morphology information results in efficient yet robust light curve classification, especially for eclipsing binaries. Testing the classifier on the ASAS light curve database, we achieve a retrieval rate of 98% and a false-positive rate of 2% for eclipsing binaries. We achieve similarly high retrieval rates for most other periodic variable-star classes, including RR Lyrae, Mira, and delta Scuti. However, the classifier currently has difficulty discriminating between different sub-classes of eclipsing binaries, and suffers a relatively low (∼60%) retrieval rate for multi-mode delta Cepheid stars. We find that it is imperative to train the classifier's neural network with exemplars that include the full range of light curve quality to which the classifier will be expected to perform; the classifier performs well on noisy light curves only when trained with noisy exemplars. The classifier source code, ancillary programs, a trained neural net, and a guide for use, are provided.

  14. Governor Haslam touts Oak Ridge’s economic possibilities

    Energy.gov [DOE]

    On March 21, Tennessee Governor Bill Haslam visited the Energy Department’s East Tennessee Technology Park in Oak Ridge. During his visit, he met leadership from OREM and UCOR, the site’s primary cleanup contractor, along with state and local officials to learn how environmental cleanup is paving the way for economic development in the region.

  15. Science & Technology - 2014

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    august Science & Technology - 2014 August First Multi-bunch ... for the first time the generation of two nearly-identical ... emission, fuel motion, and mix levels in the hot-spot at ...

  16. Energy Technology Engineering Center

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Energy Technology Engineering Center (ETEC) is located within Area IV of the Santa Susana Field Laboratory. The ETEC occupies 90-acres within the 290 acre site. The Santa Susana Field...

  17. Technologies Taking Us There

    SciTech Connect

    Cotrell, Jason; Veers, Paul

    2015-09-29

    Keynote presentation at the Iowa State Wind Energy Symposium. This presentation examines several cutting-edge technologies and research being performed by the National Renewable Energy Laboratory that is helping achieve the U.S. Department of Energy's Wind Vision.

  18. Desalination technology evaluation

    SciTech Connect

    Del Bene, J.V.; Loh, G.T.; Schleicher, R.W.; Sgammato, T.A.; Sinha, A.K. )

    1992-12-01

    The shortage of potable water has hindered economic development in South Florida and other areas of the United States. This project, cosponsored with Florida Power Light (FPL), examines the economics of colocation of a water desalination plant with an electric power plant to take advantage of shared facilities, personnel, and equipments well as existing intake and outfall structures. In combination, these factors should reduce the cost of desalinated water. The first step in determining the viability of colocation is identification of desalination technologies best suited for dual-purpose applications in retrofits at existing fossil plants. Based on energy efficiency and commercial maturity, reverse osmosis (RO) and low-temperature multieffect distillation (LT-MED) technologies appear to be the best candidates for such application. In fact, RO provides the best economics for the plants and conditions studied. Of the emerging technologies evaluated, sodium molecular pumping and solvent extraction technologies should be further investigated for their potential in significantly reducing desalination costs.

  19. Drilling technology/GDO

    SciTech Connect

    Kelsey, J.R.

    1985-01-01

    The Geothermal Technology Division of the US Department of Energy is sponsoring two programs related to drilling technology. The first is aimed at development of technology that will lead to reduced costs of drilling, completion, and logging of geothermal wells. This program has the official title ''Hard Rock Penetration Mechanics.'' The second program is intended to share with private industry the cost of development of technology that will result in solutions to the near term geothermal well problems. This program is referred to as the ''Geothermal Drilling Organization''. The Hard Rock Penetration Mechanics Program was funded at $2.65M in FY85 and the GDO was funded at $1.0M in FY85. This paper details the past year's activities and accomplishments and projects the plans for FY86 for these two programs.

  20. NREL: Technology Transfer - Webmaster

    U.S. Department of Energy (DOE) - all webpages (Extended Search)

    Webmaster To report any problems on or ask a question about the NREL Technology Transfer Web site, you may contact the Webmaster using the online form below. If you have a question...