Sample records for def early stage

  1. Viscosity and dissipation - early stages

    E-Print Network [OSTI]

    P. Bozek

    2009-01-15T23:59:59.000Z

    A very early start up time of the hydrodynamic evolution is needed in order to reproduce observations from relativistic heavy-ion collisions experiments. At such early times the systems is still not locally equilibrated. Another source of deviations from local equilibrium is the viscosity of the fluid. We study these effects at very early times to obtain a dynamical prescription for the transition from an early 2-dimensional expansion to a nearly equilibrated 3-dimensional expansion at latter stages. The role of viscosity at latter stages of the evolution is also illustrated.

  2. Sandia National Laboratories: control early combustion stages

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

    control early combustion stages Direct Measurement of Key Molecule Will Increase Accuracy of Combustion Models On March 3, 2015, in Computational Modeling & Simulation, CRF,...

  3. 15.391 Early Stage Capital, Fall 2003

    E-Print Network [OSTI]

    Loessberg, Shari

    15.391 examines the elements of raising early stage capital, focusing on start-up ventures and the early stages of company development. This course also prepares entrepreneurs to make the best use of outside advisors, and ...

  4. Business Model Change in Early-Stage Entrepreneurial Firms Facing High Uncertainty BUSINESS MODEL CHANGE IN EARLY-STAGE ENTREPRENEURIAL

    E-Print Network [OSTI]

    Mottram, Nigel

    Business Model Change in Early-Stage Entrepreneurial Firms Facing High Uncertainty 1 BUSINESS MODEL Business School, U.K. Changing business models is inevitable for early-stage entrepreneurial firms striving in elements of business models in a set of eight early-stage university spin-offs. Findings suggest

  5. Detecting Internet Worms at Early Stage Shigang Chen Sanjay Ranka

    E-Print Network [OSTI]

    Chen, Shigang

    proposes an Internet-worm early warning system that automatically detects concerted scan activities on the responsiveness of this early warning system. Keywords: Enterprise Security Management, Internet Worm, Early and derives possible signatures of worm attacks. Its goal is to issue warning at the early stage of worm

  6. aspects early stages: Topics by E-print Network

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

    Ryblewski 2012-07-03 104 A three stage model for the inner engine of Gamma Ray Burst: Prompt emission and early afterglow Astrophysics (arXiv) Summary: We propose a new model...

  7. albicans early stage: Topics by E-print Network

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

    Last Page Topic Index 101 A three stage model for the inner engine of Gamma Ray Burst: Prompt emission and early afterglow Astrophysics (arXiv) Summary: We propose a new model...

  8. Discovering colorons at the early stage LHC

    SciTech Connect (OSTI)

    Dicus, Duane A. [Center for Particles and Fields and Texas Cosmology Center, University of Texas, Austin, Texas 78712 (United States); Kao, Chung; Sayre, Joshua [Homer L. Dodge Department of Physics and Astronomy and Oklahoma Center for High Energy Physics, University of Oklahoma, Norman, Oklahoma 73019 (United States); Nandi, S. [Department of Physics and Oklahoma Center for High Energy Physics, Oklahoma State University, Stillwater, Oklahoma 74078 (United States)

    2011-05-01T23:59:59.000Z

    Prospects are investigated for the discovery of massive hypergluons using data from the early runs of the Large Hadron Collider. A center of mass energy of 7 TeV and an integrated luminosity of 1 fb{sup -1} or 5 fb{sup -1} are assumed. A phenomenological Lagrangian is adopted to evaluate the cross section of a pair of colored vector bosons (colorons, {rho}-tilde) decaying into four colored scalar resonances (hyperpions, {pi}-tilde), which then decay into eight gluons. The dominant eight-jet background from the production of 8g, 7g1q, 6g2q, and 5g3q is included. We find an abundance of signal events and that realistic cuts reduce the background enough to establish a 5{sigma} signal for the coloron mass of up to 733 GeV with 1 fb{sup -1} or 833 GeV with 5 fb{sup -1}.

  9. DIAMOND CHEMICAL VAPOR DEPOSITION Nucleation and Early Growth Stages

    E-Print Network [OSTI]

    Dandy, David

    a reality. Epi- taxial diamond has been grown on diamond and cubic-BN. Polycrystalline diamond films haveDIAMOND CHEMICAL VAPOR DEPOSITION Nucleation and Early Growth Stages by Huimin Liu David S. Dandy of high-quality diamond coatings on preshaped parts and synthesis of free-standing shapes of diamond

  10. Early stages in the development of stress corrosion cracks

    SciTech Connect (OSTI)

    Jones, R.H.; Simonen, E.P.

    1993-12-01T23:59:59.000Z

    Processes in growth of short cracks and stage I of long stress corrosion cracks were identified and evaluated. There is evidence that electrochemical effects can cause short stress corrosion cracks to grow at rates faster or slower than long cracks. Short cracks can grow at faster rates than long cracks for a salt film dissolution growth mechanism or from reduced oxygen inhibition of hydrolytic acidification. An increasing crack growth rate with increasing crack length could result from a process of increasing crack tip concentration of a critical anion, such as Cl{sup {minus}}, with increasing crack length in a system where the crack velocity is dependent on the Cl{sup {minus}} or some other anion concentration. An increasing potential drop between crack tip and mouth would result in an increased anion concentration at the crack tip and hence an increasing crack velocity. Stage I behavior of long cracks is another early development stage in the life of a stress corrosion crack which is poorly understood. This stage can be described by da/dt = AK{sup m} where da/dt is crack velocity, A is a constant, K is stress intensity and m ranges from 2 to 24 for a variety of materials and environments. Only the salt film dissolution model was found to quantitatively describe this stage; however, the model was only tested on one material and its general applicability is unknown.

  11. On developing business architectures : a multi-framework evaluation of an early-stage enterprise

    E-Print Network [OSTI]

    Montoya, Mario, 1978-

    2010-01-01T23:59:59.000Z

    Early-stage enterprises are characterized by leveraging limited resources during periods of accelerating industry growth and relatively high uncertainty. This thesis is an examination of an early-stage enterprise within ...

  12. Nontrivial Dynamics in the Early Stages of Inflation

    E-Print Network [OSTI]

    E. Calzetta; C. El Hasi

    1994-08-05T23:59:59.000Z

    Inflationary cosmologies, regarded as dynamical systems, have rather simple asymptotic behavior, insofar as the cosmic baldness principle holds. Nevertheless, in the early stages of an inflationary process, the dynamical behavior may be very complex. In this paper, we show how even a simple inflationary scenario, based on Linde's ``chaotic inflation'' proposal, manifests nontrivial dynamical effects such as the breakup of invariant tori, formation of cantori and Arnol'd's diffusion. The relevance of such effects is highlighted by the fact that even the occurrence or not of inflation in a given Universe is dependent upon them.

  13. DEF: The Physical Basis of Electromagnetic Propulsion

    E-Print Network [OSTI]

    Pinheiro, Mario J

    2015-01-01T23:59:59.000Z

    The very existence of the physical vacuum provides a framework to propose a general mechanism for propelling bodies through an agency of electromagnetic fields, that seat in that medium. When two sub-systems of a general closed device interact via nonlocal and retarded electromagnetic pulses, it is easily shown that they give a nonzero force, and that only tend to comply with the action-to-reaction force in the limit of instantaneous interactions. The arrangement of sub-systems provide a handy way to optimize the unbalanced EM force with the concept of impedance matching. The general properties of the differential electromagnetic force (DEF) are the following: i) it is proportional to the square of the intensity and to the angular wave frequency $\\omega$; ii) to the space between the sub-systems (although in a non-linear manner); iii) it is inversely proportional to the speed of interaction; iv) when the two sub-systems are out-of-phase, DEF is null. The approach is of interest to practical engineering princi...

  14. Implications of early stages in the growth of stress corrosion cracking on component reliability

    SciTech Connect (OSTI)

    Jones, R.H.; Simonen, E.P.

    1995-04-01T23:59:59.000Z

    Environment-induced crack growth generally progresses through several stages prior to component failure. Crack initiation, short crack growth, and stage 1 growth are early stages in crack development that are summarized in this paper. The implications of these stages on component reliability, derive from the extended time that the crack exists in the early stages because crack velocity is slow. The duration of the early stages provides a greater opportunity for corrective action if cracks can be detected. Several important factors about the value of understanding short crack behavior include: (1) life prediction requires a knowledge of the total life cycle of the crack including the early stages, (2) greater reliability is possible if the transition between short and long crack behavior is known component life after this transition is short and (3) remedial actions are more effective for short than long cracks.

  15. Lyman-alpha Emitters During the Early Stages of Reionization

    E-Print Network [OSTI]

    Andrei Mesinger; Steven Furlanetto

    2008-01-30T23:59:59.000Z

    We investigate the potential of exploiting Lya Emitters (LAEs) to constrain the volume-weighted mean neutral hydrogen fraction of the IGM, x_H, at high redshifts (specifically z~9). We use "semi-numerical'' simulations to efficiently generate density, velocity, and halo fields at z=9 in a 250 Mpc box, resolving halos with masses M>2.2e8 solar masses. We construct ionization fields corresponding to various values of x_H. With these, we generate LAE luminosity functions and "counts-in-cell'' statistics. As in previous studies, we find that LAEs begin to disappear rapidly when x_H > 0.5. Constraining x_H(z=9) with luminosity functions is difficult due to the many uncertainties inherent in the host halo mass Lya luminosity mapping. However, using a very conservative mapping, we show that the number densities derived using the six z~9 LAEs recently discovered by Stark et al. (2007) imply x_H densities, if genuine, require substantial star formation in halos with M solar masses, making them unique among the current sample of observed high-z objects. Furthermore, reionization increases the apparent clustering of the observed LAEs. We show that a ``counts-in-cell'' statistic is a powerful probe of this effect, especially in the early stages of reionization. Specifically, we show that a field of view (typical of upcoming IR instruments) containing LAEs has >10% higher probability of containing more than one LAE in a x_H>0.5 universe than a x_H=0 universe with the same overall number density. With this statistic, a fully ionized universe can be robustly distinguished from one with x_H > 0.5 using a survey containing only ~ 20--100 galaxies.

  16. Ultrahigh resolution optical coherence tomography for the detection of early stage neoplastic pathologies

    E-Print Network [OSTI]

    Hsiung, Pei-Lin, 1975-

    2005-01-01T23:59:59.000Z

    Identification of changes associated with early stage disease remains a critical objective of clinical detection and treatment. Effective screening and detection is important for improving outcome because advanced disease, ...

  17. Public private equity : an evaluation of public early stage risk capital initiatives in Norway

    E-Print Network [OSTI]

    Oeby, Simen Berger

    2014-01-01T23:59:59.000Z

    Access to finance limits the ability to grow for many early stage ventures. To mitigate this limitation, the Norwegian State has initiated seed funds partly financed by public funds. The funds carried out many investments ...

  18. Improvements to building energy usage modeling during early design stages and retrofits

    E-Print Network [OSTI]

    Mandelbaum, Andrew (Andrew Joseph)

    2014-01-01T23:59:59.000Z

    A variety of improvements to the MIT Design Advisor, a whole-building energy usage modeling tool intended for use during early design stages, are investigated. These include changes to the thermal mass temperature distribution ...

  19. Grain sorghum response to different flooding periods at the early boot stage

    E-Print Network [OSTI]

    Zolezzi del Rio, Oscar

    1976-01-01T23:59:59.000Z

    The following steps should be considered in this drainage research program: 1. Compile as much of the drainage data as is possible and publish it in one report, 2. Since there are so many parameters that effect drainage, try to work with models to eliminate... of inundations of different lengths at the sensitive early vegetative growth stage have been determined. The purpose of the research reported herein was to determine the effects of different lengths of flooding at the other sensitive stage, the early...

  20. Continuous imaging of plasmon rulers in live cells reveals early-stage caspase-3 activation

    E-Print Network [OSTI]

    Craik, Charles S.

    Continuous imaging of plasmon rulers in live cells reveals early-stage caspase-3 activation of plasmon coupling in metal nanoparticles has shown great potential for the optical characterization of many biological processes. Recently, we have demonstrated the use of ``plasmon rulers'' to observe conformational

  1. A multiphase model for the early stages of the hydration of retarded oilwell cement

    E-Print Network [OSTI]

    Billingham, John

    A multiphase model for the early stages of the hydration of retarded oilwell cement J. Billingham, Birmingham B15 2TT, UK A.M. Harrisson The Rugby Group, RMC House Rugby CV21 2DT, UK Abstract. Cement is used in the oil industry to line oil wells. The major com- ponents of oilwell cement are tricalcium silicate (C3S

  2. Propagating Uncertainty in Solar Panel Performance for Life Cycle Modeling in Early Stage Design

    E-Print Network [OSTI]

    Yang, Maria

    Propagating Uncertainty in Solar Panel Performance for Life Cycle Modeling in Early Stage Design. This work is conducted in the context of an amorphous photovoltaic (PV) panel, using data gathered from the National Solar Radiation Database, as well as realistic data collected from an experimental hardware setup

  3. IMAGING OF EARLY-STAGE CRACKING ON REAL-SIZE CONCRETE STRUCTURE FROM 4-POINTS BENDING TEST

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    IMAGING OF EARLY-STAGE CRACKING ON REAL-SIZE CONCRETE STRUCTURE FROM 4-POINTS BENDING TEST Yuxiang difficulty on complexes material such as concrete, which is in part due the use of coherent waves in a very the application of this new technique on a real-size 15 tons concrete structure for imaging early-stage cracking

  4. Developing an inventor support service which performs early stage market and manufacturing evaluations. [Final Report

    SciTech Connect (OSTI)

    Not Available

    1991-10-01T23:59:59.000Z

    American businesses are learning the difficult high cost lesson of ignoring production and market factors (producibility, unit product cost (UPC), marketability, etc) during the engineering design phase of product development. Studies have shown that the Japanese spend three times as long as Americans in the design feasibility and decision process of new product introductions and one third the amount of time in the implementation of those products. There is a 20 to 1 cost benefit on effort applied in the design phase versus the production phase of the product life cycle. The number one goal of this project was to establish an organization that has, as one of its purposes, the providing of services responsive to the needs of independent inventors. The number two goal was to demonstrate the value of providing marketing and manufacturing counsel at an early stage in the product development process. The first study goal was met by providing the materials and information necessary to establish an evaluation team and an organization to handle such evaluations. The second study goal was met by demonstrating the impact of early market analysis and manufacturing considerations on product design and therefore on the description of the invention for four different inventions. These inventions were selected at various stages of development. Regardless of stage of development, the marketing and manufacturing reviews resulted in significant changes in design and/or market positioning.

  5. Developing an inventor support service which performs early stage market and manufacturing evaluations. Final report

    SciTech Connect (OSTI)

    Not Available

    1991-10-01T23:59:59.000Z

    American businesses are learning the difficult high cost lesson of ignoring production and market factors (producibility, unit product cost (UPC), marketability, etc) during the engineering design phase of product development. Studies have shown that the Japanese spend three times as long as Americans in the design feasibility and decision process of new product introductions and one third the amount of time in the implementation of those products. There is a 20 to 1 cost benefit on effort applied in the design phase versus the production phase of the product life cycle. The number one goal of this project was to establish an organization that has, as one of its purposes, the providing of services responsive to the needs of independent inventors. The number two goal was to demonstrate the value of providing marketing and manufacturing counsel at an early stage in the product development process. The first study goal was met by providing the materials and information necessary to establish an evaluation team and an organization to handle such evaluations. The second study goal was met by demonstrating the impact of early market analysis and manufacturing considerations on product design and therefore on the description of the invention for four different inventions. These inventions were selected at various stages of development. Regardless of stage of development, the marketing and manufacturing reviews resulted in significant changes in design and/or market positioning.

  6. To what extent is social media exposure correlated with financial performance for early stage digital consumer-facing startups?

    E-Print Network [OSTI]

    Genre, Solene

    2014-01-01T23:59:59.000Z

    It is very hard to identify and evaluate very early stage investment opportunities in disruptive digital consumer-facing startups as they usually don't have any meaningful revenue data yet. However, these growing startups ...

  7. Impact of the CE mark approval on exit opportunities and validation for early stage medical device companies

    E-Print Network [OSTI]

    Kothari, Ashish (Ashish Shrikant)

    2011-01-01T23:59:59.000Z

    The aim of this thesis was to look at the impact of acquiring the CE marking approval on the outcome of early stage medical device companies, specifically its impact on strategic acquisition opportunities and on valuation. ...

  8. Clean Energy Finance: Challenges and Opportunities of Early-Stage Energy Investing (Presentation)

    SciTech Connect (OSTI)

    Heap, D.; Pless, J.; Aieta, N.

    2013-12-01T23:59:59.000Z

    Characterized by a changing landscape and new opportunities, today's increasingly complex energy decision space will need innovative financing and investment models to appropriately assess risk and profitability. This report provides an overview of the current state of clean energy finance across the entire spectrum but with a focus on early stage investing, and it includes insights from investors across all investment classes. Further, this report aims to provide a roadmap with the mechanisms, limitations, and considerations involved in making successful investments by identifying risks, challenges, and opportunities in the clean energy sector.

  9. Non-linear Langevin model for the early-stage dynamics of electrospinning jets

    E-Print Network [OSTI]

    Lauricella, Marco; Pisignano, Dario; Succi, Sauro

    2015-01-01T23:59:59.000Z

    We present a non-linear Langevin model to investigate the early-stage dynamics of electrified polymer jets in electrospinning experiments. In particular, we study the effects of air drag force on the uniaxial elongation of the charged jet, right after ejection from the nozzle. Numerical simulations show that the elongation of the jet filament close to the injection point is significantly affected by the non-linear drag exerted by the surrounding air. These result provide useful insights for the optimal design of current and future electrospinning experiments.

  10. Early Stage R&D Available for Partnerships - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasRelease Date:research community -- hosted byColdNewsEarly Stage

  11. Influence of gas compression on flame acceleration in the early stage of burning in tubes

    E-Print Network [OSTI]

    Valiev, Damir; Kuznetsov, Mikhail; Eriksson, Lars-Erik; Law, Chung K; Bychkov, Vitaly

    2012-01-01T23:59:59.000Z

    The mechanism of finger flame acceleration at the early stage of burning in tubes has been observed experimentally by Clanet and Searby [Combust. Flame 105: 225 (1996)] for slow propane-air flames, and elucidated analytically and computationally by Bychkov et al. [Combust. Flame 150: 263 (2007)] in the limit of an incompressible flow. We analytically, experimentally and computationally study herein the finger flame acceleration for fast burning flames, when the gas compressibility assumes an important role. Specifically, we have developed a theory through small Mach number expansion up to the first-order terms, demonstrating that gas compression reduces the acceleration rate and thereby moderates the finger flame acceleration noticeably. We have also conducted experiments for hydrogen-oxygen mixtures with considerable initial values of the Mach number, showing finger flame acceleration with the acceleration rate much smaller than those obtained previously for hydrocarbon flames. Furthermore, we have performed...

  12. Effects of Velocity Correlation on Early Stage of Free Cooling Process of Inelastic Hard Sphere System

    E-Print Network [OSTI]

    Ryo Kawahara; Hiizu Nakanishi

    2003-10-29T23:59:59.000Z

    The free cooling process in the inelastic hard sphere system is studied by analysing the data from large scale molecular dynamics simulations on a three dimensional system. The initial energy decay, the velocity distribution function, and the velocity correlation functions are calculated to be compared with theoretical predictions. The energy decay rate in the homogeneous cooling state is slightly but distinctively smaller than that expected from the independent collision assumption. The form of the one particle velocity distribution is found not to be stationary. These contradict to the predictions of the kinetic theory based on the Enskog-Boltzmann equation and suggest that the velocity correlation is already important in the early stage of homogeneous cooling state. The energy decay rate is analysed in terms of the velocity correlation.

  13. Soil nematode communities are ecologically more mature beneath late-than early-successional stage biological soil crusts

    E-Print Network [OSTI]

    Neher, Deborah A.

    Soil nematode communities are ecologically more mature beneath late- than early-successional stage biological soil crusts Brian J. Darby a,*, Deborah A. Neher a , Jayne Belnap b a Department of Plant and Soil; accepted 12 April 2006 Abstract Biological soil crusts are key mediators of carbon and nitrogen inputs

  14. Methanol masers : Reliable tracers of the early stages of high-mass star formation

    E-Print Network [OSTI]

    S. P. Ellingsen

    2005-10-07T23:59:59.000Z

    The GLIMPSE and MSX surveys have been used to examine the mid-infrared properties of a statistically complete sample of 6.7 GHz methanol masers. The GLIMPSE point sources associated with methanol masers are clearly distinguished from the majority, typically having extremely red mid-infrared colors, similar to those expected of low-mass class 0 young stellar objects. The intensity of the GLIMPSE sources associated with methanol masers is typically 4 magnitudes brighter at 8.0 micron than at 3.6 micron. Targeted searches towards GLIMPSE point sources with [3.6]-[4.5] > 1.3 and an 8.0 micron magnitude less than 10 will detect more than 80% of class II methanol masers. Many of the methanol masers are associated with sources within infrared dark clouds (IRDC) which are believed to mark regions where high-mass star formation is in its very early stages. The presence of class II methanol masers in a significant fraction of IRDC suggests that high-mass star formation is common in these regions. Different maser species are thought to trace different evolutionary phases of the high-mass star formation process. Comparison of the properties of the GLIMPSE sources associated with class II methanol masers and other maser species shows interesting trends, consistent with class I methanol masers tracing a generally earlier evolutionary phase and OH masers tracing a later evolutionary phase.

  15. Atomic structure of Cu-10. 9 at % Be alloys in the early stages of aging

    SciTech Connect (OSTI)

    Koo, Y.M.

    1987-01-01T23:59:59.000Z

    Diffuse x-ray scattering was employed to investigate the local atomic structure and static strains in a single crystal of a Cu-10.9 at. % Be alloy in the early stages of aging. In addition to these experiments, neutron elastic and inelastic scattering were obtained to investigate the phonon properties in the as-quenched state of this alloy. In the as-quenched state, there is a nearly regular array of small ellipsoidal Be clusters aligned along <100> directions (This produces the tweed contrast seen in TEM). The density of these clusters is 7.5 x 10/sup 26//m/sup 3/. The diffuse streaks seen in electron diffraction patterns are due largely to thermal diffuse scattering. Phonon-dispersion curves show no large differences from those of pure copper, except at (xi xi xi)/sub T/ zone boundary, where there is softening. This difference may be due to a Kohn anomaly. The elastic anisotropy of this alloy increases considerably with alloying, which probably leads to the plate-like GP zone morphology in subsequent aging treatments. The structure of the GP zones is a mixture of Be-rich single- and multi-layered zones. As aging proceeds, the zones grow in thickness.

  16. BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010...

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

    40' - June 3 2010 (1 of 4) BP Oil Spill Footage (High Def) - Leak at 4840' - June 3 2010 (1 of 4) Addthis Description Footage of the BP Oil Spill Duration 0:15...

  17. BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850'...

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

    Top Hat Procedure at 4850' - June 3 2010 (4 of 4) BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850' - June 3 2010 (4 of 4) Addthis Description Footage of the BP Oil...

  18. BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010...

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

    3 of 4) BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (3 of 4) Addthis Description Footage of the BP Oil Spill Duration 0:19...

  19. BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010...

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

    2 of 4) BP Oil Spill Footage (High Def) - Leak at 4850' - June 3 2010 (2 of 4) Addthis Description Footage of the BP Oil Spill Duration 0:13...

  20. A review of "Conscience on Stage: The Comedia as Casuistry in Early Modern Spain" by Hillaire Kallendorf

    E-Print Network [OSTI]

    Wright, Elizabeth

    2009-01-01T23:59:59.000Z

    , social and cultural historians? (20). Hilaire Kallendorf. Conscience on Stage: The Comedia as Casuistry in Early Modern Spain. Toronto: University of Toronto Press, 2007. x + 299 pp. $65. Review by elizabeth r. wright, university of georgia. Spain?s... playwrights. Yet a miniscule proportion of plays have attracted careful and sustained scholarly scrutiny or are performed regularly in repertories. This book reports on one scholar?s project to widen the lens through which we view Spain?s ?Golden Age...

  1. The MIT Design Advisor : simple and rapid energy simulation of early-stage building designs

    E-Print Network [OSTI]

    Urban, Bryan J. (Bryan James)

    2007-01-01T23:59:59.000Z

    Simulation tools, when applied early in the design process, can considerably reduce the energy demand of newly constructed buildings. For a simulation tool to assist with design, it must be easy to use, provide feedback ...

  2. Impairment in early stages of visual information processing in nonpsychotic schizotypic individuals

    E-Print Network [OSTI]

    Steronko, Robert Jon

    1977-01-01T23:59:59.000Z

    ; Haber and Hershenson, 1973) which assume that sensory information is first stored in a transient display system which Neisser (1967) termed iconic storage. Information in iconic storage is then scanned or "read out" into more central mechanisms (e.... g. , short-term memory). In backward masking, the second stimulus (mask) is seen as affecting the processing of the first stimulus (target) at this level, either during icon formation or in processinq from the icon to later stages (Haber...

  3. Phase-based x-ray scattering—A possible method to detect cancer cells in a very early stage

    SciTech Connect (OSTI)

    Feye-Treimer, U., E-mail: feye-treimer@helmholtz-berlin.de; Treimer, W. [Department of Mathematics, Physics and Chemistry, University of Applied Sciences, D-13353 Berlin, Germany and Joint Department G-GTOMO, Helmholtz Zentrum fuer Materialien und Energie Berlin, D-14109 Berlin (Germany)] [Department of Mathematics, Physics and Chemistry, University of Applied Sciences, D-13353 Berlin, Germany and Joint Department G-GTOMO, Helmholtz Zentrum fuer Materialien und Energie Berlin, D-14109 Berlin (Germany)

    2014-05-15T23:59:59.000Z

    Purpose: This theoretical work contains a detailed investigation of the potential and sensitivity of phase-based x-ray scattering for cancer detection in biopsies if cancer is in a very early stage of development. Methods: Cancer cells in their early stage of development differ from healthy ones mainly due to their faster growing cell nuclei and the enlargement of their densities. This growth is accompanied by an altered nucleus–plasma relation for the benefit of the cell nuclei, that changes the physical properties especially the index of refraction of the cell and the one of the cell nuclei. Interaction of radiation with matter is known to be highly sensitive to small changes of the index of refraction of matter; therefore a detection of such changes of volume and density of cell nuclei by means of high angular resolved phase-based scattering of x rays might provide a technique to distinguish malignant cells from healthy ones ifthe cell–cell nucleus system is considered as a coherent phase shifting object. Then one can observe from a thin biopsy which represents a monolayer of cells (no multiple scattering) that phase-based x-ray scattering curves from healthy cells differ from those of cancer cells in their early stage of development. Results: Detailed calculations of x-ray scattering patterns from healthy and cancer cell nuclei yield graphs and numbers with which one can distinguish healthy cells from cancer ones, taking into account that both kinds of cells occur in a tissue within a range of size and density. One important result is the role and the influence of the (lateral) coherence width of the radiation on the scattering curves and the sensitivity of phase-based scattering for cancer detection. A major result is that a larger coherence width yields a larger sensitivity for cancer detection. Further import results are calculated limits for critical sizes and densities of cell nuclei in order to attribute the investigated tissue to be healthy or diseased. Conclusions: With this proposed method it should be in principle possible to detect cancer cells in apparently healthy tissues in biopsies and/or in samples of the far border region of abscised or excised tissues. Thus this method could support established methods in diagnostics of cancer-suspicious samples.

  4. THE BURST MODE OF ACCRETION AND DISK FRAGMENTATION IN THE EARLY EMBEDDED STAGES OF STAR FORMATION

    SciTech Connect (OSTI)

    Vorobyov, Eduard I. [Institute for Computational Astrophysics, Saint Mary's University, Halifax, NS B3H 3C3 (Canada); Basu, Shantanu, E-mail: vorobyov@ap.smu.c, E-mail: basu@uwo.c [Department of Physics and Astronomy, The University of Western Ontario, London, ON N6A 3K7 (Canada)

    2010-08-20T23:59:59.000Z

    We revisit our original papers on the burst mode of accretion by incorporating a detailed energy balance equation into a thin-disk model for the formation and evolution of circumstellar disks around low-mass protostars. Our model includes the effect of radiative cooling, viscous and shock heating, and heating due to stellar and background irradiation. Following the collapse from the prestellar phase allows us to model the early embedded phase of disk formation and evolution. During this time, the disk is susceptible to fragmentation, depending upon the properties of the initial prestellar core. Globally, we find that higher initial core angular momentum and mass content favors more fragmentation, but higher levels of background radiation can moderate the tendency to fragment. A higher rate of mass infall onto the disk than that onto the star is a necessary but not a sufficient condition for disk fragmentation. More locally, both the Toomre Q-parameter needs to be below a critical value and the local cooling time needs to be shorter than a few times the local dynamical time. Fragments that form during the early embedded phase tend to be driven into the inner disk regions and likely trigger mass accretion and luminosity bursts that are similar in magnitude to FU-Orionis-type or EX-Lupi-like events. Disk accretion is shown to be an intrinsically variable process, thanks to disk fragmentation, nonaxisymmetric structure, and the effect of gravitational torques. The additional effect of a generic {alpha}-type viscosity acts to reduce burst frequency and accretion variability, and is likely to not be viable for values of {alpha} significantly greater than 0.01.

  5. The vertical structure of ocean heat 89A64BC7DEF72B4

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    freeze over [Winton, 2003]. While global ocean heat transport can be deduced from estimates of airThe vertical structure of ocean heat transport 1234567 89A64BC7DEF72B4 5567334EE72224EE1D523E1E;4#72B43%EE7D44 7D446BE27B725CE93$93BE647 #12;The vertical structure of ocean heat transport G

  6. W L % Off. Def. P.D. Advance 0 0 #DIV/0! 0 0 0 #DIV/0!

    E-Print Network [OSTI]

    Azevedo, Ricardo

    Community College - Central Lamar University - Lamar Hoops 2 Houston Community College - Central 3 Tournament 2013 Women's Pool 1 Standings Team # Team 1 Lamar University - Lamar Hoops #12;W L % Off. Def. P

  7. Improved Survival Endpoints With Adjuvant Radiation Treatment in Patients With High-Risk Early-Stage Endometrial Carcinoma

    SciTech Connect (OSTI)

    Elshaikh, Mohamed A., E-mail: melshai1@hfhs.org [Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan (United States); Vance, Sean; Suri, Jaipreet S. [Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan (United States); Mahan, Meredith [Public Health Science, Henry Ford Hospital, Detroit, Michigan (United States); Munkarah, Adnan [Division of Gynecologic Oncology, Department of Women's Health Services, Henry Ford Hospital, Detroit, Michigan (United States)

    2014-02-01T23:59:59.000Z

    Purpose/Objective(s): To determine the impact of adjuvant radiation treatment (RT) on recurrence-free survival (RFS), disease-specific survival (DSS), and overall survival (OS) in patients with high-risk 2009 International Federation of Gynecology and Obstetrics stage I-II endometrial carcinoma. Methods and Materials: We identified 382 patients with high-risk EC who underwent hysterectomy. RFS, DSS, and OS were calculated from the date of hysterectomy by use of the Kaplan-Meier method. Cox regression modeling was used to explore the risks associated with various factors on survival endpoints. Results: The median follow-up time for the study cohort was 5.4 years. The median age was 71 years. All patients underwent hysterectomy and salpingo-oophorectomy, 93% had peritoneal cytology, and 85% underwent lymphadenectomy. Patients with endometrioid histology constituted 72% of the study cohort, serous in 16%, clear cell in 7%, and mixed histology in 4%. Twenty-three percent of patients had stage II disease. Adjuvant management included RT alone in 220 patients (57%), chemotherapy alone in 25 patients (7%), and chemoradiation therapy in 27 patients (7%); 110 patients (29%) were treated with close surveillance. The 5-year RFS, DSS, and OS were 76%, 88%, and 73%, respectively. On multivariate analysis, adjuvant RT was a significant predictor of RFS (P<.001) DSS (P<.001), and OS (P=.017). Lymphovascular space involvement was a significant predictor of RFS and DSS (P<.001). High tumor grade was a significant predictor for RFS (P=.038) and DSS (P=.025). Involvement of the lower uterine segment was also a predictor of RFS (P=.049). Age at diagnosis and lymphovascular space involvement were significant predictors of OS: P<.001 and P=.002, respectively. Conclusion: In the treatment of patients with high-risk features, our study suggests that adjuvant RT significantly improves recurrence-free, disease-specific, and overall survival in patients with early-stage endometrial carcinoma. Furthermore, adjuvant RT is an independent predictor for RFS, DSS, and OS in this group of patients. These findings need validation from a prospective randomized study.

  8. Interactive effects of elevated temperature and pCO2 on early-life-history stages of the giant kelp Macrocystis pyrifera

    E-Print Network [OSTI]

    Blanchette, Carol Anne

    Interactive effects of elevated temperature and pCO2 on early-life-history stages of the giant kelp and mortality of zoospores of the giant kelp Macrocystis pyrifera, a foundation species of temperate reef ecosystems. Newly settled kelp spores were cultured in the laboratory for seven days in a factorial design

  9. Early-stage star forming cloud cores in GLIMPSE Extended Green Objects (EGOs) as traced by organics pecies

    E-Print Network [OSTI]

    Ge, Jixing; Chen, Xi; Takahashi, S

    2014-01-01T23:59:59.000Z

    In order to investigate the physical and chemical properties of massive star forming cores in early stages, we analyse the excitation and abundance of four organic species, CH3OH, CH3OCH3, HCOOCH3 and CH3CH2CN, toward 29 Extended Green Object (EGO) cloud cores that were observed by our previous single dish spectral line survey. The EGO cloud cores are found to have similar methanol J_3-J_2 rotation temperatures of ~44 K, a typical linear size of ~0.036 pc, and a typical beam averaged methanol abundance of several 10^(-9) (the beam corrected value could reach several 10^(-7)). The abundances of the latter three species, normalized by that of methanol, are found to be correlated also across a large variety of clouds such as EGO cloud cores, hot corinos, massive hot cores and Galactic Center clouds. The chemical properties of the EGO cloud cores lie between that of hot cores and hot corinos. However, the abundances and abundance ratios of the four species can not be satisfactorily explained by recent chemical mo...

  10. Early-Stage Breast Cancer Treated With 3-Week Accelerated Whole-Breast Radiation Therapy and Concomitant Boost

    SciTech Connect (OSTI)

    Chadha, Manjeet, E-mail: MChadha@chpnet.org [Department of Radiation Oncology, Beth Israel Medical Center, New York, New York (United States)] [Department of Radiation Oncology, Beth Israel Medical Center, New York, New York (United States); Woode, Rudolph; Sillanpaa, Jussi [Department of Radiation Oncology, Beth Israel Medical Center, New York, New York (United States)] [Department of Radiation Oncology, Beth Israel Medical Center, New York, New York (United States); Lucido, David [Department of Biostatistics, Beth Israel Medical Center, New York, New York (United States)] [Department of Biostatistics, Beth Israel Medical Center, New York, New York (United States); Boolbol, Susan K.; Kirstein, Laurie; Osborne, Michael P.; Feldman, Sheldon [Division of Breast Surgery, Beth Israel Medical Center, New York, New York (United States)] [Division of Breast Surgery, Beth Israel Medical Center, New York, New York (United States); Harrison, Louis B. [Department of Radiation Oncology, Beth Israel Medical Center, New York, New York (United States)] [Department of Radiation Oncology, Beth Israel Medical Center, New York, New York (United States)

    2013-05-01T23:59:59.000Z

    Purpose: To report early outcomes of accelerated whole-breast radiation therapy with concomitant boost. Methods and Materials: This is a prospective, institutional review board-approved study. Eligibility included stage TisN0, T1N0, and T2N0 breast cancer. Patients receiving adjuvant chemotherapy were ineligible. The whole breast received 40.5 Gy in 2.7-Gy fractions with a concomitant lumpectomy boost of 4.5 Gy in 0.3-Gy fractions. Total dose to the lumpectomy site was 45 Gy in 15 fractions over 19 days. Results: Between October 2004 and December 2010, 160 patients were treated; stage distribution was as follows: TisN0, n=63; T1N0, n=88; and T2N0, n=9. With a median follow-up of 3.5 years (range, 1.5-7.8 years) the 5-year overall survival and disease-free survival rates were 90% (95% confidence interval [CI] 0.84-0.94) and 97% (95% CI 0.93-0.99), respectively. Five-year local relapse-free survival was 99% (95% CI 0.96-0.99). Acute National Cancer Institute/Common Toxicity Criteria grade 1 and 2 skin toxicity was observed in 70% and 5%, respectively. Among the patients with ?2-year follow-up no toxicity higher than grade 2 on the Late Effects in Normal Tissues–Subjective, Objective, Management, and Analytic scale was observed. Review of the radiation therapy dose–volume histogram noted that ?95% of the prescribed dose encompassed the lumpectomy target volume in >95% of plans. The median dose received by the heart D{sub 05} was 215 cGy, and median lung V{sub 20} was 7.6%. Conclusions: The prescribed accelerated schedule of whole-breast radiation therapy with concomitant boost can be administered, achieving acceptable dose distribution. With follow-up to date, the results are encouraging and suggest minimal side effects and excellent local control.

  11. EVALUATING THE EFFECTS OF FLY ASH EXPOSURE ON FISH EARLY LIFE STAGES: FATHEAD MINNOW EMBRYO-LARVAL TESTS

    SciTech Connect (OSTI)

    Greeley Jr, Mark Stephen [ORNL; Elmore, Logan R [ORNL; McCracken, Kitty [ORNL

    2012-05-01T23:59:59.000Z

    On December 22, 2008, a dike containing fly ash and bottom ash in an 84-acre complex of the Tennessee Valley Authority's (TVA) Kingston Steam Plant in East Tennessee failed and released a large quantity of ash into the adjacent Emory River. Ash deposits extended as far as 4 miles upstream (Emory River mile 6) of the Plant, and some ash was carried as far downstream as Tennessee River mile 564 ({approx}4 miles downstream of the Tennessee River confluence with the Clinch River). A byproduct of coal burning power plants, fly ash contains a variety of metals and other elements which, at sufficient concentrations and in specific forms, can be toxic to biological systems. The effects of fly ash contamination on exposed fish populations depend on the magnitude and duration of exposure, with the most significant risk considered to be the effects of specific ash constituents, especially selenium, on fish early life stages. Uptake by adult female fish of fly ash constituents through the food chain and subsequent maternal transfer of contaminants to the developing eggs is thought to be the primary route of selenium exposure to larval fish (Woock and others 1987, Coyle and others 1993, Lemly 1999, Moscatello and others 2006), but direct contact of the fertilized eggs and developing embryos to ash constituents in river water and sediments is also a potential risk factor (Woock and others 1987, Coyle and others 1993, Jezierska and others 2009). To address the risk of fly ash from the Kingston spill to the reproductive health of downstream fish populations, ORNL has undertaken a series of studies in collaboration with TVA including: (1) a field study of the bioaccumulation of fly ash constituents in fish ovaries and the reproductive condition of sentinel fish species in reaches of the Emory and Clinch Rivers affected by the fly ash spill; (2) laboratory tests of the potential toxicity of fly ash from the spill area on fish embryonic and larval development (reported in the current technical manuscript); (3) additional laboratory experimentation focused on the potential effects of long-term exposures to fly ash on fish survival and reproductive competence; and (4) a combined field and laboratory study examining the in vitro developmental success of embryos and larvae obtained from fish exposed in vivo for over two years to fly ash in the Emory and Clinch Rivers. These fish reproduction and early life-stage studies are being conducted in conjunction with a broader biological monitoring program administered by TVA that includes a field study of the condition of larval fish in the Emory and Clinch Rivers along with assessments of water quality, sediment composition, ecotoxicological studies, terrestrial wildlife studies, and human and ecological risk assessment. Information and data generated from these studies will provide direct input into risk assessment efforts and will also complement and help support other phases of the overall biomonitoring program. Fish eggs, in general, are known to be capable of concentrating heavy metals and other environmental contaminants from water-borne exposures during embryonic development (Jezierska and others 2009), and fathead minnow embryos in particular have been shown to concentrate methylmercury (Devlin 2006) as well as other chemical toxicants. This technical report focuses on the responses of fathead minnow embryos to simple contact exposures to fly ash in laboratory toxicity tests adapted from a standard fathead minnow (Pimephales promelas) 7-d embryo-larval survival and teratogenicity test (method 1001.0 in EPA 2002) with mortality, hatching success, and the incidences of developmental abnormalities as measured endpoints.

  12. Structural and functional studies of a phosphatidic acid-binding antifungal plant defensin MtDef4: Identification of an RGFRRR motif governing fungal cell entry

    SciTech Connect (OSTI)

    Sagaram, Uma S.; El-Mounadi, Kaoutar; Buchko, Garry W.; Berg, Howard R.; Kaur, Jagdeep; Pandurangi, Raghoottama; Smith, Thomas J.; Shah, Dilip

    2013-12-04T23:59:59.000Z

    A highly conserved plant defensin MtDef4 potently inhibits the growth of a filamentous fungus Fusarium graminearum. MtDef4 is internalized by cells of F. graminearum. To determine its mechanism of fungal cell entry and antifungal action, NMR solution structure of MtDef4 has been determined. The analysis of its structure has revealed a positively charged patch on the surface of the protein consisting of arginine residues in its ?-core signature, a major determinant of the antifungal activity of MtDef4. Here, we report functional analysis of the RGFRRR motif of the ?-core signature of MtDef4. The replacement of RGFRRR to AAAARR or to RGFRAA not only abolishes fungal cell entry but also results in loss of the antifungal activity of MtDef4. MtDef4 binds strongly to phosphatidic acid (PA), a precursor for the biosynthesis of membrane phospholipids and a signaling lipid known to recruit cytosolic proteins to membranes. Mutations of RGFRRR which abolish fungal cell entry of MtDef4 also impair its binding to PA. Our results suggest that RGFRRR motif is a translocation signal for entry of MtDef4 into fungal cells and that this positively charged motif likely mediates interaction of this defensin with PA as part of its antifungal action.

  13. Dosimetric and Clinical Outcomes of Involved-Field Intensity-Modulated Radiotherapy After Chemotherapy for Early-Stage Hodgkin's Lymphoma With Mediastinal Involvement

    SciTech Connect (OSTI)

    Lu Ningning [Department of Radiation Oncology, Cancer Hospital, National Cancer Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing (China)] [Department of Radiation Oncology, Cancer Hospital, National Cancer Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing (China); Li Yexiong, E-mail: yexiong@yahoo.com [Department of Radiation Oncology, Cancer Hospital, National Cancer Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing (China); Wu Runye; Zhang Ximei; Wang Weihu; Jin Jing; Song Yongwen; Fang Hui; Ren Hua; Wang Shulian; Liu Yueping; Liu Xinfan; Chen Bo; Dai Jianrong; Yu Zihao [Department of Radiation Oncology, Cancer Hospital, National Cancer Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing (China)] [Department of Radiation Oncology, Cancer Hospital, National Cancer Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing (China)

    2012-09-01T23:59:59.000Z

    Purpose: To evaluate the dosimetric and clinical outcomes of involved-field intensity-modulated radiotherapy (IF-IMRT) for patients with early-stage Hodgkin's lymphoma (HL) with mediastinal involvement. Methods and Materials: Fifty-two patients with early-stage HL that involved the mediastinum were reviewed. Eight patients had Stage I disease, and 44 patients had Stage II disease. Twenty-three patients (44%) presented with a bulky mediastinum, whereas 42 patients (81%) had involvement of both the mediastinum and either cervical or axillary nodes. All patients received combination chemotherapy followed by IF-IMRT. The prescribed radiation dose was 30-40 Gy. The dose-volume histograms of the target volume and critical normal structures were evaluated. Results: The median mean dose to the primary involved regions (planning target volume, PTV1) and boost area (PTV2) was 37.5 Gy and 42.1 Gy, respectively. Only 0.4% and 1.3% of the PTV1 and 0.1% and 0.5% of the PTV2 received less than 90% and 95% of the prescribed dose, indicating excellent PTV coverage. The median mean lung dose and V20 to the lungs were 13.8 Gy and 25.9%, respectively. The 3-year overall survival, local control, and progression-free survival rates were 100%, 97.9%, and 96%, respectively. No Grade 4 or 5 acute or late toxicities were reported. Conclusions: Despite the large target volume, IF-IMRT gave excellent dose coverage and a favorable prognosis, with mild toxicity in patients with early-stage mediastinal HL.

  14. Evaluation of Vascular Endothelial Growth Factor as a Prognostic Marker for Local Relapse in Early-Stage Breast Cancer Patients Treated With Breast-Conserving Therapy

    SciTech Connect (OSTI)

    Moran, Meena S., E-mail: meena.moran@yale.edu [Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT (United States); Yang Qifeng [Department of Radiation Oncology, University of Medicine and Dentistry of New Jersey Robert Wood Johnson School of Medicine and the Cancer Institute of New Jersey, New Brunswick, NJ (United States); Department of Breast Surgery, Qilu Hospital, Shandong University, Jinan, People's Republic of China (China); Goyal, Sharad [Department of Radiation Oncology, University of Medicine and Dentistry of New Jersey Robert Wood Johnson School of Medicine and the Cancer Institute of New Jersey, New Brunswick, NJ (United States); Harris, Lyndsay; Chung, Gina [Department of Medical Oncology, Yale University School of Medicine, New Haven, CT (United States); Haffty, Bruce G. [Department of Radiation Oncology, University of Medicine and Dentistry of New Jersey Robert Wood Johnson School of Medicine and the Cancer Institute of New Jersey, New Brunswick, NJ (United States)

    2011-12-01T23:59:59.000Z

    Purpose: Vascular endothelial growth factor (VEGF) is an important protein involved in the process of angiogenesis that has been found to correlate with relapse-free and overall survival in breast cancer, predominantly in locally advanced and metastatic disease. A paucity of data is available on the prognostic implications of VEGF in early-stage breast cancer; specifically, its prognostic value for local relapse after breast-conserving therapy (BCT) is largely unknown. The purpose of our study was to assess VEGF expression in a cohort of early-stage breast cancer patients treated with BCT and to correlate the clinical and pathologic features and outcomes with overexpression of VEGF. Methods and Materials: After obtaining institutional review board approval, the paraffin specimens of 368 patients with early-stage breast cancer treated with BCT between 1975 and 2005 were constructed into tissue microarrays with twofold redundancy. The tissue microarrays were stained for VEGF and read by a trained pathologist, who was unaware of the clinical details, as positive or negative according the standard guidelines. The clinical and pathologic data, long-term outcomes, and results of VEGF staining were analyzed. Results: The median follow-up for the entire cohort was 6.5 years. VEGF expression was positive in 56 (15%) of the 368 patients. Although VEGF expression did not correlate with age at diagnosis, tumor size, nodal status, histologic type, family history, estrogen receptor/progesterone receptor status, or HER-2 status, a trend was seen toward increased VEGF expression in the black cohort (26% black vs. 13% white, p = .068). Within the margin-negative cohort, VEGF did not predict for local relapse-free survival (RFS) (96% vs. 95%), nodal RFS (100% vs. 100%), distant metastasis-free survival (91% vs. 92%), overall survival (92% vs. 97%), respectively (all p >.05). Subset analysis revealed that VEGF was highly predictive of local RFS in node-positive, margin-negative patients (86% vs. 100%, p = .029) on univariate analysis, but it did not retain its significance on multivariate analysis (hazard ratio, 2.52; 95% confidence interval, 0.804-7.920, p = .113). No other subgroups were identified in which a correlation was found between VEGF expression and local relapse. Conclusion: To our knowledge, our study is the first to assess the prognostic value of VEGF with the endpoint of local relapse in early-stage breast cancer treated with BCT, an important question given the recent increased use of targeted antiangiogenic agents in early-stage breast cancer. Our study results suggest that VEGF is not an independent predictor of local RFS after BCT, but additional, larger studies specifically analyzing the endpoint of VEGF and local relapse are warranted.

  15. A Prospective Longitudinal Clinical Trial Evaluating Quality of Life After Breast-Conserving Surgery and High-Dose-Rate Interstitial Brachytherapy for Early-Stage Breast Cancer

    SciTech Connect (OSTI)

    Garsa, Adam A.; Ferraro, Daniel J.; DeWees, Todd A. [Department of Radiation Oncology, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Deshields, Teresa L. [Department of Medicine, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Margenthaler, Julie A.; Cyr, Amy E. [Department of Surgery, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Naughton, Michael [Department of Medicine, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Aft, Rebecca [Department of Surgery, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Department of Surgery, John Cochran Veterans Hospital, St. Louis, Missouri (United States); Gillanders, William E.; Eberlein, Timothy [Department of Surgery, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Matesa, Melissa A.; Ochoa, Laura L. [Department of Radiation Oncology, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States); Zoberi, Imran, E-mail: izoberi@radonc.wustl.edu [Department of Radiation Oncology, Siteman Cancer Center, Barnes-Jewish Hospital and Washington University School of Medicine, St. Louis, Missouri (United States)

    2013-12-01T23:59:59.000Z

    Purpose: To prospectively examine quality of life (QOL) of patients with early stage breast cancer treated with accelerated partial breast irradiation (APBI) using high-dose-rate (HDR) interstitial brachytherapy. Methods and Materials: Between March 2004 and December 2008, 151 patients with early stage breast cancer were enrolled in a phase 2 prospective clinical trial. Eligible patients included those with Tis-T2 tumors measuring ?3 cm excised with negative surgical margins and with no nodal involvement. Patients received 3.4 Gy twice daily to a total dose of 34 Gy. QOL was measured using European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30, version 3.0, and QLQ-BR23 questionnaires. The QLQ-C30 and QLQ-BR23 questionnaires were evaluated during pretreatment and then at 6 to 8 weeks, 3 to 4 months, 6 to 8 months, and 1 and 2 years after treatment. Results: The median follow-up was 55 months. Breast symptom scores remained stable in the months after treatment, and they significantly improved 6 to 8 months after treatment. Scores for emotional functioning, social functioning, and future perspective showed significant improvement 2 years after treatment. Symptomatic fat necrosis was associated with several changes in QOL, including increased pain, breast symptoms, systemic treatment side effects, dyspnea, and fatigue, as well as decreased role functioning, emotional functioning, and social functioning. Conclusions: HDR multicatheter interstitial brachytherapy was well tolerated, with no significant detrimental effect on measured QOL scales/items through 2 years of follow-up. Compared to pretreatment scores, there was improvement in breast symptoms, emotional functioning, social functioning, and future perspective 2 years after treatment.

  16. PSA Nadir of <0.5 ng/mL Following Brachytherapy for Early-Stage Prostate Adenocarcinoma is Associated With Freedom From Prostate-Specific Antigen Failure

    SciTech Connect (OSTI)

    Ko, Eric C. [Department of Radiation Oncology, Mount Sinai Medical Center, New York, NY (United States); Stone, Nelson N. [Department of Radiation Oncology, Mount Sinai Medical Center, New York, NY (United States); Department of Urology, Mount Sinai Medical Center, New York, NY (United States); Stock, Richard G., E-mail: Richard.Stock@mountsinai.org [Department of Radiation Oncology, Mount Sinai Medical Center, New York, NY (United States)

    2012-06-01T23:59:59.000Z

    Purpose: Because limited information exists regarding whether the rate or magnitude of PSA decline following brachytherapy predicts long-term clinical outcomes, we evaluated whether achieving a prostate-specific antigen (PSA) nadir (nPSA) <0.5 ng/mL following brachytherapy is associated with decreased PSA failure and/or distant metastasis. Methods and Materials: We retrospectively analyzed our database of early-stage prostate adenocarcinoma patients who underwent brachytherapy, excluding those receiving androgen-deprivation therapy and those with <2 years follow-up. Median and mean pretreatment PSA were 6 ng/mL and 7.16 ng/mL, respectively. By clinical stage, 775 were low risk ({<=}T2a), 126 were intermediate risk (T2b), and 20 were high risk (>T2b). By Gleason score, 840 were low risk ({<=}6), 71 were intermediate risk (7), and 10 were high risk (>7). Patients were treated with brachytherapy only (I-125, n = 779, or Pd-103, n = 47), or brachytherapy + external-beam radiation therapy (n = 95). Median follow-up was 6.3 years. We noted whether nPSA <0.5 ng/mL was achieved and the time to achieve this nadir and tested for associations with pretreatment risk factors. We also determined whether this PSA endpoint was associated with decreased PSA failure or distant metastasis. Results: Absence of high-risk factors in clinical stage ({<=}T2b), Gleason score ({<=}7), and pretreatment PSA ({<=}20 ng/mL) was significantly associated with achieving nPSA <0.5 ng/mL. By Kaplan-Meier analysis, patients achieving nPSA <0.5 ng/mL had significantly higher long-term freedom from biochemical failure (FFBF) than nonresponders (5-year FFBF: 95.2 {+-} 0.8% vs. 71.5 {+-} 6.7%; p < 0.0005). Among responders, those who achieved nPSA <0.5 ng/mL in {<=}5 years had higher FFBF than those requiring >5 years (5-year FFBF: 96.7 {+-} 0.7% vs. 80.8 {+-} 4.6%; p < 0.0005). On multivariate analysis, patients who achieved nPSA <0.5 ng/mL in {<=}5 years had significantly higher FFBF than other patients. Conclusions: Pretreatment risk factors (clinical tumor stage, Gleason score, pretreatment PSA) strongly predict for patients achieving nPSA <0.5 ng/mL following brachytherapy, and this cohort had significantly higher long-term FFBF.

  17. Five-year Local Control in a Phase II Study of Hypofractionated Intensity Modulated Radiation Therapy With an Incorporated Boost for Early Stage Breast Cancer

    SciTech Connect (OSTI)

    Freedman, Gary M., E-mail: Gary.Freedman@uphs.upenn.edu [Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania (United States); Anderson, Penny R. [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Bleicher, Richard J. [Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Litwin, Samuel; Li Tianyu [Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Biostatistics, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Swaby, Ramona F. [Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Ma, Chang-Ming Charlie; Li Jinsheng [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Radiation Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Sigurdson, Elin R. [Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Surgical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States); Watkins-Bruner, Deborah [School of Nursing, Emory University, Atlanta, Georgia (United States)] [School of Nursing, Emory University, Atlanta, Georgia (United States); Morrow, Monica [Department of Surgical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States)] [Department of Surgical Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Goldstein, Lori J. [Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)] [Department of Medical Oncology, Fox Chase Cancer Center, Philadelphia, Pennsylvania (United States)

    2012-11-15T23:59:59.000Z

    Purpose: Conventional radiation fractionation of 1.8-2 Gy per day for early stage breast cancer requires daily treatment for 6-7 weeks. We report the 5-year results of a phase II study of intensity modulated radiation therapy (IMRT), hypofractionation, and incorporated boost that shortened treatment time to 4 weeks. Methods and Materials: The study design was phase II with a planned accrual of 75 patients. Eligibility included patients aged {>=}18 years, Tis-T2, stage 0-II, and breast conservation. Photon IMRT and an incorporated boost was used, and the whole breast received 2.25 Gy per fraction for a total of 45 Gy, and the tumor bed received 2.8 Gy per fraction for a total of 56 Gy in 20 treatments over 4 weeks. Patients were followed every 6 months for 5 years. Results: Seventy-five patients were treated from December 2003 to November 2005. The median follow-up was 69 months. Median age was 52 years (range, 31-81). Median tumor size was 1.4 cm (range, 0.1-3.5). Eighty percent of tumors were node negative; 93% of patients had negative margins, and 7% of patients had close (>0 and <2 mm) margins; 76% of cancers were invasive ductal type: 15% were ductal carcinoma in situ, 5% were lobular, and 4% were other histology types. Twenty-nine percent of patients 29% had grade 3 carcinoma, and 20% of patients had extensive in situ carcinoma; 11% of patients received chemotherapy, 36% received endocrine therapy, 33% received both, and 20% received neither. There were 3 instances of local recurrence for a 5-year actuarial rate of 2.7%. Conclusions: This 4-week course of hypofractionated radiation with incorporated boost was associated with excellent local control, comparable to historical results of 6-7 weeks of conventional whole-breast fractionation with sequential boost.

  18. Expression of kidney injury molecule-1 (Kim-1) in relation to necrosis and apoptosis during the early stages of Cd-induced proximal tubule injury

    SciTech Connect (OSTI)

    Prozialeck, Walter C. [Department of Pharmacology, Midwestern University, 555 31st Street, Downers Grove, IL 60515 (United States)], E-mail: wprozi@midwestern.edu; Edwards, Joshua R.; Lamar, Peter C. [Department of Pharmacology, Midwestern University, 555 31st Street, Downers Grove, IL 60515 (United States); Liu, Jie [Inorganic Carcinogenesis Section, Laboratory of Comparative Carcinogenesis, NCI at NIEHS, Research Triangle Park, NC 27709 (United States); Vaidya, Vishal S. [Renal Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115 (United States); Bonventre, Joseph V. [Renal Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115 (United States); Harvard-MIT Division of Health Sciences and Technology (United States)

    2009-08-01T23:59:59.000Z

    Cadmium (Cd) is a nephrotoxic industrial and environmental pollutant that causes a generalized dysfunction of the proximal tubule. Kim-1 is a transmembrane glycoprotein that is normally not detectable in non-injured kidney, but is up-regulated and shed into the urine during the early stages of Cd-induced proximal tubule injury. The objective of the present study was to examine the relationship between the Cd-induced increase in Kim-1 expression and the onset of necrotic and apoptotic cell death in the proximal tubule. Adult male Sprague-Dawley rats were treated with 0.6 mg (5.36 {mu}mol) Cd/kg, subcutaneously, 5 days per week for up to 12 weeks. Urine samples were analyzed for levels of Kim-1 and the enzymatic markers of cell death, lactate dehydrogenase (LDH) and alpha-glutathione-S-transferase ({alpha}-GST). In addition, necrotic cells were specifically labeled by perfusing the kidneys in situ with ethidium homodimer using a procedure that has been recently developed and validated in the Prozialeck laboratory. Cryosections of the kidneys were also processed for the immunofluorescent visualization of Kim-1 and the identification of apoptotic cells by TUNEL labeling. Results showed that significant levels of Kim-1 began to appear in the urine after 6 weeks of Cd treatment, whereas the levels of total protein, {alpha}-GST and LDH were not increased until 8-12 weeks. Results of immunofluorescence labeling studies showed that after 6 weeks and 12 weeks, Kim-1 was expressed in the epithelial cells of the proximal tubule, but that there was no increase in the number of necrotic cells, and only a modest increase in the number of apoptotic cells at 12 weeks. These results indicate that the Cd-induced increase in Kim-1 expression occurs before the onset of necrosis and at a point where there is only a modest level of apoptosis in the proximal tubule.

  19. SICSA is able to provide funding for current Scotland-based Informatics and Computing Science early stage researchers (i.e. research students) to undertake an industrial internship

    E-Print Network [OSTI]

    St Andrews, University of

    stage researchers (i.e. research students) to undertake an industrial internship as part of their research program. Internships can be for up to a maximum of 9 months (including a period of preparation to the placement. Applicants can propose an internship with any size organisation, from SME to multi

  20. Cost-Effectiveness Analysis of Stereotactic Body Radiotherapy and Radiofrequency Ablation for Medically Inoperable, Early-Stage Non-Small Cell Lung Cancer

    SciTech Connect (OSTI)

    Sher, David J., E-mail: dsher@lroc.harvard.edu [Department of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Boston, MA (United States); Center for Outcomes and Policy Research, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Boston, MA (United States); Wee, Jon O. [Department of Thoracic Surgery, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Boston, MA (United States); Punglia, Rinaa S. [Department of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Boston, MA (United States); Center for Outcomes and Policy Research, Dana-Farber Cancer Institute/Brigham and Women's Hospital, Boston, MA (United States)

    2011-12-01T23:59:59.000Z

    Purpose: The standard management of medically inoperable Stage I non-small-cell lung cancer (NSCLC) conventionally has been fractionated three-dimensional conformal radiation therapy (3D-CRT). The relatively poor local control rate and inconvenience associated with this therapy have prompted the development of stereotactic body radiotherapy (SBRT), a technique that delivers very high doses of irradiation typically over 3 to 5 sessions. Radiofrequency ablation (RFA) has also been investigated as a less costly, single-day therapy that thermally ablates small, peripheral tumors. The cost-effectiveness of these three techniques has never been compared. Methods and Materials: We developed a Markov model to describe health states of 65-year-old men with medically inoperable NSCLC after treatment with 3D-CRT, SBRT, and RFA. Given their frail state, patients were assumed to receive supportive care after recurrence. Utility values, recurrence risks, and costs were adapted from the literature. Sensitivity analyses were performed to model uncertainty in these parameters. Results: The incremental cost-effectiveness ratio for SBRT over 3D-CRT was $6,000/quality-adjusted life-year, and the incremental cost-effectiveness ratio for SBRT over RFA was $14,100/quality-adjusted life-year. One-way sensitivity analysis showed that the results were robust across a range of tumor sizes, patient utility values, and costs. This result was confirmed with probabilistic sensitivity analyses that varied local control rates and utilities. Conclusion: In comparison to 3D-CRT and RFA, SBRT was the most cost-effective treatment for medically inoperable NSCLC over a wide range of treatment and disease assumptions. On the basis of efficacy and cost, SBRT should be the primary treatment approach for this disease.

  1. High-Dose Hypofractionated Proton Beam Radiation Therapy Is Safe and Effective for Central and Peripheral Early-Stage Non-Small Cell Lung Cancer: Results of a 12-Year Experience at Loma Linda University Medical Center

    SciTech Connect (OSTI)

    Bush, David A., E-mail: dbush@llu.edu [Department of Radiation Oncology, Loma Linda University Medical Center, Loma Linda, California (United States); Cheek, Gregory [Department of Pulmonary Medicine, Loma Linda University Medical Center, Loma Linda, California (United States); Zaheer, Salman; Wallen, Jason [Department of Thoracic Surgery, Loma Linda University Medical Center, Loma Linda, California (United States); Mirshahidi, Hamid [Department of Medical Oncology, Loma Linda University Medical Center, Loma Linda, California (United States); Katerelos, Ari; Grove, Roger; Slater, Jerry D. [Department of Radiation Oncology, Loma Linda University Medical Center, Loma Linda, California (United States)

    2013-08-01T23:59:59.000Z

    Purpose: We update our previous reports on the use of hypofractionated proton beam radiation therapy for early-stage lung cancer patients. Methods and Materials: Eligible subjects had biopsy-proven non-small cell carcinoma of the lung and were medically inoperable or refused surgery. Clinical workup required staging of T1 or T2, N0, M0. Subjects received hypofractionated proton beam therapy to the primary tumor only. The dose delivered was sequentially escalated from 51 to 60 Gy, then to 70 Gy in 10 fractions over 2 weeks. Endpoints included toxicity, pulmonary function, overall survival (OS), disease-specific survival (DSS), and local control (LC). Results: One hundred eleven subjects were analyzed for treatment outcomes. The patient population had the following average characteristics; age 73.2 years, tumor size 3.6 cm, and 1.33 L forced expiratory volume in 1 second. The entire group showed improved OS with increasing dose level (51, 60, and 70 Gy) with a 4-year OS of 18%, 32%, and 51%, respectively (P=.006). Peripheral T1 tumors exhibited LC of 96%, DSS of 88%, and OS of 60% at 4 years. Patients with T2 tumors showed a trend toward improved LC and survival with the 70-Gy dose level. On multivariate analysis, larger tumor size was strongly associated with increased local recurrence and decreased survival. Central versus peripheral location did not correlate with any outcome measures. Clinical radiation pneumonitis was not found to be a significant complication, and no patient required steroid therapy after treatment for radiation pneumonitis. Pulmonary function was well maintained 1 year after treatment. Conclusions: High-dose hypofractionated proton therapy achieves excellent outcomes for lung carcinomas that are peripherally or centrally located. The 70-Gy regimen has been adopted as standard therapy for T1 tumors at our institution. Larger T2 tumors show a trend toward improved outcomes with higher doses, suggesting that better results could be seen with intensified treatment.

  2. Early stage innovation ; matching opportunities with inventions

    E-Print Network [OSTI]

    Bardon, Sebastien (Sebastien Remi)

    2008-01-01T23:59:59.000Z

    What makes innovation happen in reality? The challenges companies have faced in building their competitive advantage have been shifting over the last decade, away from operational excellence and global footprint and towards ...

  3. Engineering human hepatic tissue for modeling liver-stage malaria

    E-Print Network [OSTI]

    Ng, Shengyong

    2014-01-01T23:59:59.000Z

    The Plcsmodium liver stage is an attractive target for the development of antimalarial drugs and vaccines, as it provides an opportunity to interrupt the life cycle of the parasite at a critical early stage. However, ...

  4. Five Stages of the Alaskan Arctic Cold Season with Ecosystem Implications

    E-Print Network [OSTI]

    Sturm, Matthew

    1 Five Stages of the Alaskan Arctic Cold Season with Ecosystem Implications Peter Q. Olsson1 ecosystem processes. During the two autumnal stages (Early Snow and Early Cold) soils remain warm, unfrozen with the least amount of biological activity and have the least impact on the ecosystem. However, Early Snow

  5. Lake Roosevelt Fisheries Monitoring Progam; Thyroid-Induced Chemical Imprinting in Early Life Stages and Assessment of Smoltification in Kokanee Salmon Implications for Operating Lake Roosevelt Kokanee Salmon Hatcheries; 1993 Supplement Report.

    SciTech Connect (OSTI)

    Tilson, Mary Beth; Galloway, Heather; Scholz, Allan T. (Eastern Washington University, Upper Columbia United Tribes Fisheries Research Center, Cheney, WA)

    1994-06-01T23:59:59.000Z

    In 1991, two hatcheries were built to provide a kokanee salmon and rainbow trout fishery for Lake Roosevelt as partial mitigation for the loss of anadromous salmon and steelhead caused by construction of Grand Coulee Dam. The Sherman Creek Hatchery, located on a tributary of Lake Roosevelt to provide an egg collection and imprinting site, is small with limited rearing capability. The second hatchery was located on the Spokane Indian Reservation because of a spring water source that supplied cold, pure water for incubating and rearing eggs.`The Spokane Tribal Hatchery thus serves as the production facility. Fish reared there are released into Sherman Creek and other tributary streams as 7-9 month old fry. However, to date, returns of adult fish to release sites has been poor. If hatchery reared kokanee imprint to the hatchery water at egg or swim up stages before 3 months of age, they may not be imprinting as 7-9 month old fry at the time of stocking. In addition, if these fish undergo a smolt phase in the reservoir when they are 1.5 years old, they could migrate below Grand Coulee Dam and out of the Lake Roosevelt system. In the present investigation, which is part of the Lake Roosevelt monitoring program to assess hatchery effectiveness, kokanee salmon were tested to determine if they experienced thyroxine-induced chemical imprinting and smoltification similar to anadromous salmonids. Determination of the critical period for olfactory imprinting was determined by exposing kokanee to different synthetic chemicals (morpholine or phenethyl alcohol) at different life stages, and then measuring the ability to discriminate the chemicals as sexually mature adults. Whole body thyroxine content and blood plasma thyroxine concentration was measured to determine if peak thyroid activity coincided with imprinting or other morphological, physiological or behavioral transitions associated with smoltification.

  6. Staging Europe February 19, 2003

    E-Print Network [OSTI]

    Qian, Ning

    of the stage. The opening musical phrases #12;Staging Europe 3 of Stravinsky's Histoire du Soldat begin, she

  7. Precision adjustable stage

    DOE Patents [OSTI]

    Cutburth, Ronald W. (Tracy, CA); Silva, Leonard L. (Livermore, CA)

    1988-01-01T23:59:59.000Z

    An improved mounting stage of the type used for the detection of laser beams is disclosed. A stage center block is mounted on each of two opposite sides by a pair of spaced ball bearing tracks which provide stability as well as simplicity. The use of the spaced ball bearing pairs in conjunction with an adjustment screw which also provides support eliminates extraneous stabilization components and permits maximization of the area of the center block laser transmission hole.

  8. Multiple stage railgun

    DOE Patents [OSTI]

    Hawke, Ronald S. (Livermore, CA); Scudder, Jonathan K. (Pleasanton, CA); Aaland, Kristian (Livermore, CA)

    1982-01-01T23:59:59.000Z

    A multiple stage magnetic railgun accelerator (10) for accelerating a projectile (15) by movement of a plasma arc (13) along the rails (11,12). The railgun (10) is divided into a plurality of successive rail stages (10a-n) which are sequentially energized by separate energy sources (14a-n) as the projectile (15) moves through the bore (17) of the railgun (10). Propagation of energy from an energized rail stage back towards the breech end (29) of the railgun (10) can be prevented by connection of the energy sources (14a-n) to the rails (11,12) through isolation diodes (34a-n). Propagation of energy from an energized rail stage back towards the breech end of the railgun can also be prevented by dividing the rails (11,12) into electrically isolated rail sections (11a-n, 12a-n). In such case means (55a-n) are used to extinguish the arc at the end of each energized stage and a fuse (31) or laser device (61) is used to initiate a new plasma arc in the next energized rail stage.

  9. Cooling system early-stage design tool for naval applications

    E-Print Network [OSTI]

    Fiedel, Ethan R

    2011-01-01T23:59:59.000Z

    This thesis utilizes concepts taken from the NAVSEA Design Practices and Criteria Manualfor Surface Ship Freshwater Systems and other references to create a Cooling System Design Tool (CSDT). With the development of new ...

  10. Rapid prototyping in early stages of architectural design

    E-Print Network [OSTI]

    Simondetti, Alvise

    1997-01-01T23:59:59.000Z

    This thesis shows how architects can use Rapid Prototyping and what the advantages and disadvantages are in different manipulations of the tool. Chapter two attempts to chart a road map of the rapid prototyping media. The ...

  11. Early Stage R&D Technologies - Energy Innovation Portal

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscoveringESnet Update WinterEXPLANATIONScience at

  12. Staged fluidized bed

    DOE Patents [OSTI]

    Mallon, R.G.

    1983-05-13T23:59:59.000Z

    The invention relates to oil shale retorting and more particularly to staged fluidized bed oil shale retorting. Method and apparatus are disclosed for narrowing the distribution of residence times of any size particle and equalizing the residence times of large and small particles in fluidized beds. Particles are moved up one fluidized column and down a second fluidized column with the relative heights selected to equalize residence times of large and small particles. Additional pairs of columns are staged to narrow the distribution of residence times and provide complete processing of the material.

  13. System Design Stage

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-05-21T23:59:59.000Z

    This chapter addresses translating the user-oriented functional design specifications into a set of technical, computer-oriented system design specifications; and designing the data structure and processes to the level of detail necessary to plan and execute the Programming and Installation Stages.

  14. Staged depressurization system

    DOE Patents [OSTI]

    Schulz, T.L.

    1993-11-02T23:59:59.000Z

    A nuclear reactor having a reactor vessel disposed in a containment shell is depressurized in stages using depressurizer valves coupled in fluid communication with the coolant circuit. At least one sparger submerged in the in-containment refueling water storage tank which can be drained into the containment sump communicates between one or more of the valves and an inside of the containment shell. The depressurizer valves are opened in stages, preferably at progressively lower coolant levels and for opening progressively larger flowpaths to effect depressurization through a number of the valves in parallel. The valves can be associated with a pressurizer tank in the containment shell, coupled to a coolant outlet of the reactor. At least one depressurization valve stage openable at a lowest pressure is coupled directly between the coolant circuit and the containment shell. The reactor is disposed in the open sump in the containment shell, and a further valve couples the open sump to a conduit coupling the refueling water storage tank to the coolant circuit for adding water to the coolant circuit, whereby water in the containment shell can be added to the reactor from the open sump. 4 figures.

  15. Staged direct injection diesel engine

    DOE Patents [OSTI]

    Baker, Quentin A. (San Antonio, TX)

    1985-01-01T23:59:59.000Z

    A diesel engine having staged injection for using lower cetane number fuels than No. 2 diesel fuel. The engine includes a main fuel injector and a pilot fuel injector. Pilot and main fuel may be the same fuel. The pilot injector injects from five to fifteen percent of the total fuel at timings from 20.degree. to 180.degree. BTDC depending upon the quantity of pilot fuel injected, the fuel cetane number and speed and load. The pilot fuel injector is directed toward the centerline of the diesel cylinder and at an angle toward the top of the piston, avoiding the walls of the cylinder. Stratification of the early injected pilot fuel is needed to reduce the fuel-air mixing rate, prevent loss of pilot fuel to quench zones, and keep the fuel-air mixture from becoming too fuel lean to become effective. In one embodiment, the pilot fuel injector includes a single hole for injection of the fuel and is directed at approximately 48.degree. below the head of the cylinder.

  16. Department of Energy to Invest up to $12 Million to Support Early...

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

    in total funding - 10 million from the American Recovery and Reinvestment Act - in four companies to support the development of early stage solar energy technologies and help...

  17. A review of "Women on Stage in Stuart Drama" by Sophie Tomlinson

    E-Print Network [OSTI]

    Thompson, Ayanna

    2007-01-01T23:59:59.000Z

    links Age Rectified to important recent scholarship on motherhood and old age in early modern England. Scholars interested in either of these topics must read this book. Sophie Tomlinson. Women on Stage in Stuart Drama. Cambridge: Cambridge University...- ration drama or treat it like some bizarre anomaly that occurred ex nihilo. Sophie Tomlinson?s new book Women on Stage in Stuart Drama, however, offers an important intervention by demonstrating ?the literary and theatrical continuities? between early...

  18. Multi-stage Cascaded Stirling Refrigerator

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

    Energy Multi-stage Cascaded Stirling Refrigerator Multi-stage Cascaded Stirling Refrigerator Los Alamos National Laboratory (LANL) researchers have developed a multi-stage...

  19. Staged membrane oxidation reactor system

    DOE Patents [OSTI]

    Repasky, John Michael; Carolan, Michael Francis; Stein, VanEric Edward; Chen, Christopher Ming-Poh

    2013-04-16T23:59:59.000Z

    Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.

  20. Staged membrane oxidation reactor system

    DOE Patents [OSTI]

    Repasky, John Michael; Carolan, Michael Francis; Stein, VanEric Edward; Chen, Christopher Ming-Poh

    2012-09-11T23:59:59.000Z

    Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.

  1. Staged membrane oxidation reactor system

    DOE Patents [OSTI]

    Repasky, John Michael; Carolan, Michael Francis; Stein, VanEric Edward; Chen, Christopher Ming-Poh

    2014-05-20T23:59:59.000Z

    Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.

  2. 5, 14791509, 2008 Staged cost

    E-Print Network [OSTI]

    Boyer, Edmond

    HESSD 5, 1479­1509, 2008 Staged cost optimization of urban storm drainage systems M. Maharjan et al Staged cost optimization of urban storm drainage systems based on hydraulic performance in a changing optimization of urban storm drainage systems M. Maharjan et al. Title Page Abstract Introduction Conclusions

  3. Performance limits of axial turbomachine stages

    E-Print Network [OSTI]

    Hall, David Kenneth

    2011-01-01T23:59:59.000Z

    This thesis assesses the limits of stage efficiency for axial compressor and turbine stages. A stage model is developed, consisting of a specified geometry and a surface velocity distribution with turbulent boundary layers. ...

  4. Operation of staged membrane oxidation reactor systems

    DOE Patents [OSTI]

    Repasky, John Michael

    2012-10-16T23:59:59.000Z

    A method of operating a multi-stage ion transport membrane oxidation system. The method comprises providing a multi-stage ion transport membrane oxidation system with at least a first membrane oxidation stage and a second membrane oxidation stage, operating the ion transport membrane oxidation system at operating conditions including a characteristic temperature of the first membrane oxidation stage and a characteristic temperature of the second membrane oxidation stage; and controlling the production capacity and/or the product quality by changing the characteristic temperature of the first membrane oxidation stage and/or changing the characteristic temperature of the second membrane oxidation stage.

  5. Multi-stage flash degaser

    DOE Patents [OSTI]

    Rapier, P.M.

    1980-06-26T23:59:59.000Z

    A multi-stage flash degaser is incorporated in an energy conversion system having a direct-contact, binary-fluid heat exchanger to remove essentially all of the noncondensable gases from geothermal brine ahead of the direct-contact binary-fluid heat exchanger in order that the heat exchanger and a turbine and condenser of the system can operate at optimal efficiency.

  6. Multi-stage flash degaser

    DOE Patents [OSTI]

    Rapier, Pascal M. (Richmond, CA)

    1982-01-01T23:59:59.000Z

    A multi-stage flash degaser (18) is incorporated in an energy conversion system (10) having a direct-contact, binary-fluid heat exchanger to remove essentially all of the noncondensable gases from geothermal brine ahead of the direct-contact binary-fluid heat exchanger (22) in order that the heat exchanger (22) and a turbine (48) and condenser (32) of the system (10) can operate at optimal efficiency.

  7. Superstring dominated early universe and epoch dependent gauge coupling

    E-Print Network [OSTI]

    A. K. Chaudhuri

    1997-06-13T23:59:59.000Z

    We have explored the possibility that the universe at very early stage was dominated by (macroscopic) heterotic strings. We have found that the dimensionless parameter $G\\mu$ for the heterotic strings varies from $10^{-2}$ to $10^{-4}$ as the universe evolve from the matter dominance to radiation dominance. This led to the interesting consequence of epoch dependent gauge coupling constant. The gauge coupling constant at early times was found to be much stronger than the present strong interaction.

  8. Towards Modelling and Reasoning Support for EarlyPhase Requirements Engineering

    E-Print Network [OSTI]

    Toronto, University of

    increasing attention as it is generally acknowledged that the early stages of the system development life cycle are crucial to the successful development and subsequent deployment and ongoing evolution

  9. Towards Modelling and Reasoning Support for Early-Phase Requirements Engineering

    E-Print Network [OSTI]

    Toronto, University of

    increasing attention as it is generally acknowledged that the early stages of the system development life cycle are crucial to the successful development and subsequent deployment and ongoing evolution

  10. New information on olenelline trilobites from the Early Cambrian Sekwi Formation, Northwestern Canada

    E-Print Network [OSTI]

    Abe, Francine Reiko; Lieberman, Bruce S.; Pope, Michael C.; Dilliard, Kelly A.

    2010-08-16T23:59:59.000Z

    A new species of olenelline trilobite, Nevadella keelensis, is described from the Early Cambrian (Cambrian Series 2, Stage 3) in the Sekwi Formation, Mackenzie Mountains, Canada. The difficulty in discerning between Nevadia Walcott, 1910...

  11. Spatial Anisotropies and Temporal Fluctuations in Extracellular Matrix Network Texture during Early Embryogenesis

    E-Print Network [OSTI]

    Loganathan, Rajprasad; Potetz, Brain R.; Rongish, Brenda J.; Little, Charles D.

    2012-05-31T23:59:59.000Z

    Early stages of vertebrate embryogenesis are characterized by a remarkable series of shape changes. The resulting morphological complexity is driven by molecular, cellular, and tissue-scale biophysical alterations. Operating ...

  12. Apply early! Limited enrollment.

    E-Print Network [OSTI]

    volcano. Experience the culture and history of Hawaii, and the impact of human activitiesApply early! Limited enrollment. Environmental Science in the Hawaiian Islands Observe, research

  13. DESCRIPTIONS OF PREZOEAE AND STAGE I ZOEAE OF CHIONOECETES BAIRDI AND C. OPILIO

    E-Print Network [OSTI]

    on the early life history stages, especially larval distribution and abundance. Positive identificationUbfamily from the North Pacific Ocean. MATERIALS AND METHODS t During a National Marine Fisheries Service raw) was caught May 12 in 46 fathoms at lat. 56°01'N, long. 162°25'W. My identification of the two species

  14. Overfitting in Neural Nets: Backpropagation, Conjugate Gradient, and Early Stopping

    E-Print Network [OSTI]

    Caruana, Rich

    Overfitting in Neural Nets: Backpropagation, Conjugate Gradient, and Early Stopping Rich Caruana is that backprop nets with excess hidden units generalize poorly. We show that nets with excess capacity generalize) Regardless of size, nets learn task subcomponents in similar sequence. Big nets pass through stages similar

  15. Second Stage Turbine Bucket Airfoil.

    DOE Patents [OSTI]

    Xu, Liming (Simpsonville, SC); Ahmadi, Majid (Simpsonville, SC); Humanchuk, David John (Simpsonville, SC); Moretto, Nicholas (Clifton Park, NY); Delehanty, Richard Edward (Maineville, OH)

    2003-05-06T23:59:59.000Z

    The second-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinate values defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.

  16. Integrated two-stage coal liquefaction process

    DOE Patents [OSTI]

    Bronfenbrenner, James C. (Allentown, PA); Skinner, Ronald W. (Allentown, PA); Znaimer, Samuel (Vancouver, CA)

    1985-01-01T23:59:59.000Z

    This invention relates to an improved two-stage process for the production of liquid carbonaceous fuels and solvents from carbonaceous solid fuels, especially coal.

  17. Emotion in Organizations: A Review in Stages

    E-Print Network [OSTI]

    Elfenbein, Hillary Anger

    2007-01-01T23:59:59.000Z

    their crucial role is infused throughout the framework,component of emotion infused into organizational culture, inacross cultural groups are infused into each stage of the

  18. Reconciling Scratch Space Consumption, Exposure, and Volatility to Achieve Timely Staging of Job Input Data

    SciTech Connect (OSTI)

    Monti, Henri [Virginia Polytechnic Institute and State University (Virginia Tech); Butt, Ali R [Virginia Polytechnic Institute and State University (Virginia Tech); Vazhkudai, Sudharshan S [ORNL

    2010-04-01T23:59:59.000Z

    Innovative scientific applications and emerging dense data sources are creating a data deluge for high-end computing systems. Processing such large input data typically involves copying (or staging) onto the supercomputer's specialized high-speed storage, scratch space, for sustained high I/O throughput. The current practice of conservatively staging data as early as possible makes the data vulnerable to storage failures, which may entail re-staging and consequently reduced job throughput. To address this, we present a timely staging framework that uses a combination of job startup time predictions, user-specified intermediate nodes, and decentralized data delivery to coincide input data staging with job start-up. By delaying staging to when it is necessary, the exposure to failures and its effects can be reduced. Evaluation using both PlanetLab and simulations based on three years of Jaguar (No. 1 in Top500) job logs show as much as 85.9% reduction in staging times compared to direct transfers, 75.2% reduction in wait time on scratch, and 2.4% reduction in usage/hour.

  19. STATE OF CALIFORNIA INSULATION STAGE CHECKLIST

    E-Print Network [OSTI]

    STATE OF CALIFORNIA INSULATION STAGE CHECKLIST CEC-CF-6R-ENV-22 (Revised 05/12) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-ENV-22 Quality Insulation Installation (QII) - Insulation Stage be insulated in a manner that resists thermal bridging of the assembly separating conditioned from

  20. Stage IV work hardening in cubic metals

    SciTech Connect (OSTI)

    Rollett, A.D.; Kocks, U.F.; Doherty, R.D.

    1986-01-01T23:59:59.000Z

    The work hardening of fcc metals at large strains is discussed with reference to the linear stress-strain behavior often observed at large strains and known as Stage IV. The experimental evidence shows that Stage IV is a work hardening phenomenon that is found quite generally, even in pure fcc metals subjected to homogeneous deformation. A simple model for Stage IV in pure metals is presented, based on the accumulation of dislocation debris. Experiments are described for large strain torsion tests on four aluminum alloys. The level and extent of Stage IV scaled with the saturation stress that would represent the end of Stage III in the absence of a Stage IV. Reversing the torsion after large prestrains produced transient reductions in the work hardening. The strain rate sensitivity was also measured before and during the transient and found not to vary significantly. The microstructure observed at large strains in an Mg alloy suggest that Stage IV can occur in the absence of microband formation. Previous proposals for the cause of Stage IV are reviewed and found to be not supported by recent experimental data.

  1. Petar Ljusev SIngle Conversion stage AMplifier

    E-Print Network [OSTI]

    . The proposed SICAM solution strives for direct energy conversion from the mains to the audio outputPetar Ljusev SIngle Conversion stage AMplifier - SICAM PhD thesis, December 2005 #12;#12;To Elena of the project "SICAM - SIngle Conversion stage AMplifier", funded by the Danish Energy Authority under the EFP

  2. Growth and development of larval bay scallops (Argopecten irradians) in response to early exposure to high CO?

    E-Print Network [OSTI]

    White, Meredith Megan

    2013-01-01T23:59:59.000Z

    Coastal and estuarine environments experience large variability and rapid shifts in pCO? levels. Elevated pCO˛, or ocean acidification, often negatively affects early life stages of calcifying marine invertebrates, including ...

  3. Lower Freezing DEF For Higher NOx Reduction Attainment | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport(FactDepartment ofLetterEconomy andTermsDepartment1 DOEEmissionLowell,2

  4. Microsoft Word - SEC J_Appendix M - Functional Activity Def

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA Approved:AdministrationAnalysis andB - H, Page i PART I2MAY newsF, Page

  5. Dual stage active magnetic regenerator and method

    DOE Patents [OSTI]

    Pecharsky, V.K.; Gschneidner, K.A. Jr.

    1999-03-30T23:59:59.000Z

    A dual stage active magnetic regenerator refrigerator as well as method using the Joule-Brayton thermodynamic cycle includes a high temperature stage refrigerant comprising DyAl{sub 2} or (Dy{sub 1{minus}x}Er{sub x})Al{sub 2} where x is selected to be greater than 0 and less than about 0.3 in combination with a low temperature stage comprising (Dy{sub 1{minus}x}Er{sub x})Al{sub 2} where x is selected to be greater than about 0.5 and less than 1 to provide significantly improved refrigeration efficiency in the liquefaction of gaseous hydrogen. 17 figs.

  6. Dual stage active magnetic regenerator and method

    DOE Patents [OSTI]

    Pecharsky, Vitalij K. (Ames, IA); Gschneidner, Jr., Karl A. (Ames, IA)

    1999-03-30T23:59:59.000Z

    A dual stage active magnetic regenerator refrigerator as well as method using the Joule-Brayton thermodynamic cycle includes a high temperature stage refrigerant comprising DyAl.sub.2 or (Dy.sub.1-x Er.sub.x)Al.sub.2 where x is selected to be greater than 0 and less than about 0.3 in combination with a low temperature stage comprising (Dy.sub.1-x Er.sub.x)Al.sub.2 where x is selected to be greater than about 0.5 and less than 1 to provide significantly improved refrigeration efficiency in the liquefaction of gaseous hydrogen.

  7. Fuel consumption prediction methodology for early stages of naval ship design

    E-Print Network [OSTI]

    Gheriani, Eran (Eran Y.)

    2012-01-01T23:59:59.000Z

    In recent years, fuel consumption has increased in importance as a design parameter in Navy ships. Economical fuel consumption is important not only for operating cost measures but also for ship endurance tankage requirements. ...

  8. Modeling the Early Stages of Thin Film Formation by Energetic Atom Deposition

    E-Print Network [OSTI]

    Ghoniem, Nasr M.

    system to condense superthermal free particles on a host material. Ion-beam deposition systems deposit

  9. Comparison of Early-stage Design Methods for a Two-mode Hybrid Electric Vehicle

    E-Print Network [OSTI]

    Papalambros, Panos

    Whitefoot+ , V. P Atluri*, E Tate*, and P Papalambros+ + University of Michigan * General Motors Company with a vast design space consisting of distinct subsystems, such as engine, motor, transmission, and battery models are detailed high-fidelity simulations of engine and electric motor components combined with two

  10. The Origin of Episodic Accretion Bursts in the Early Stages of Star Formation

    E-Print Network [OSTI]

    E. I. Vorobyov; Shantanu Basu

    2005-10-01T23:59:59.000Z

    We study numerically the evolution of rotating cloud cores, from the collapse of a magnetically supercritical core to the formation of a protostar and the development of a protostellar disk during the main accretion phase. We find that the disk quickly becomes unstable to the development of a spiral structure similar to that observed recently in AB Aurigae. A continuous infall of matter from the protostellar envelope makes the protostellar disk unstable, leading to spiral arms and the formation of dense protostellar/protoplanetary clumps within them. The growing strength of spiral arms and ensuing redistribution of mass and angular momentum creates a strong centrifugal disbalance in the disk and triggers bursts of mass accretion during which the dense protostellar/protoplanetary clumps fall onto the central protostar. These episodes of clump infall may manifest themselves as episodes of vigorous accretion rate (\\ge 10^{-4} M_sun/yr) as is observed in FU Orionis variables. Between these accretion bursts, the protostar is characterized by a low accretion rate (< 10^{-6} M_sun/yr). During the phase of episodic accretion, the mass of the protostellar disk remains less than or comparable to the mass of the protostar.

  11. An analysis of early stage prototypes using implementation, look and feel, and role

    E-Print Network [OSTI]

    Hernley, Lauren R. (Lauren Renee)

    2011-01-01T23:59:59.000Z

    Identifying the purpose of a prototype is central to making informed decisions about the kind of prototype to build. Houde and Hill (1997) propose a model for classifying prototypes according to their purpose and the design ...

  12. Methods for managing uncertainly in material selection decisions : robustness of early stage life cycle assessment

    E-Print Network [OSTI]

    Nicholson, Anna L. (Anna Louise)

    2009-01-01T23:59:59.000Z

    Utilizing alternative materials is an important tactic to improve the environmental performance of products. Currently a growing array of materials candidates confronts today's product designer. While life-cycle assessment ...

  13. Post-diagnosis weight gain and breast cancer recurrence in women with early stage breast cancer

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    LACE and WHEL studies obtained smoking history from self-reportLACE study participants received no intervention during the reportLACE Study, the correlation between the woman’s self-report

  14. Fiber Optic Micro-endoscopy for Detection of Bacteria in Early Stages of Infection

    E-Print Network [OSTI]

    Mufti, Nooman Sadat

    2012-02-14T23:59:59.000Z

    . have built a wide field Light Emitting Diode (LED) illumination based, 1 mm diameter fiber bundle micro-endoscope capable of sub-cellular resolution imaging (4 ?m resolution with 750 ?m field of view) for pre-cancer detection in the oral mucosa [16...

  15. New Insights into the Early Stage of the Galactic Chemical Evolution

    E-Print Network [OSTI]

    Takuji Tsujimoto; Toshikazu Shigeyama

    1998-10-05T23:59:59.000Z

    The supernova yields of several heavy elements including alpha-, iron-group, and r-process elements are obtained as a function of the mass of their progenitor main-sequence stars M_ms from the abundance patterns of extremely metal-poor stars with a procedure recently proposed by Shigeyama and Tsujimoto (1998). The ejected masses of alpha- and iron-group elements increase with M_ms, whereas more Eu is ejected from supernovae with lower M_ms. For these several heavy elements, it is shown that the average abundance ratios weighted by the Salpeter initial mass function coincide with the ratios observed in stars with -2-2 results from the mixing of the products from a whole site of the nucleosynthesis, taking place on the timescale longer than 10^9yr.

  16. Modular machinery arrangement and its impact in early-stage naval electric ship design

    E-Print Network [OSTI]

    Jurkiewicz, David J. (David James)

    2012-01-01T23:59:59.000Z

    Electrical power demands for naval surface combatants are projected to rise with the development of increasingly complex and power intensive combat systems. This trend also coincides with the need of achieving maximum fuel ...

  17. Biological and taxonomic investigations concerning early stages of Heliothis zea (Boddie) and Heliothis virescens (F.

    E-Print Network [OSTI]

    Talati, Govind Motilal

    1969-01-01T23:59:59.000Z

    ". . ?. . . "i. ? -T?!e '. . ' -e?-'& egg s of '&oih th spec i& s were 0 &&se rvcd '(r: ic!. c!. (?isa&rot j Dg ml(::r' 'sooj3e 40 loor for 12 'aole 1 . --Ingrecients for boll?!orm and tobacco budworm pre-mixed1 whee. germ d'e~. Pre-?. ixed Diet ra . :t...&. larv. =, directly after exclusion from the egg. Bras;, el et al. {19''$) asser+ed thai, the larvae o&' these ';w&-. species were sc similar in the first lw&; . Ins'ars that they could not be separa . ed . Gbser- nrf puce ra& inn. and moral arran& pi...

  18. Renaissance Fare: Appetite and Authority on the Early Modern English Stage

    E-Print Network [OSTI]

    Behre, Keri Sanburn

    2011-05-31T23:59:59.000Z

    , in The Magnetic Lady, the secretly pregnant Mistress Placentia Steel eats coal, lime, hair, soap-ash, and loam. Historically, medical practitioners read the consumption of non-nutritive substances as indicative of “depraved” appetites and humoral imbalances. When...

  19. Flexibility in early stage design of US Navy ships : an analysis of options

    E-Print Network [OSTI]

    Page, Jonathan (Jonathan Edward)

    2011-01-01T23:59:59.000Z

    This thesis explores design options for naval vessels and provides a framework for analyzing their benefit to the Navy. Future demands on Navy warships, such as new or changing missions and capabilities, are unknowns at ...

  20. Rogue Performances: Staging the Underclasses in Early American Theatre Culture. By Peter P. Reed

    E-Print Network [OSTI]

    Mielke, Laura L.

    2009-01-01T23:59:59.000Z

    . and Joseph Roach here is clear and acknowledged; Reed fruitfully builds upon the latter’s description of the performative cultures of the circumatlantic world and the former’s emphasis on the African diasporic contribution to blackface by detailing how...

  1. Fiber Optic Micro-endoscopy for Detection of Bacteria in Early Stages of Infection 

    E-Print Network [OSTI]

    Mufti, Nooman Sadat

    2012-02-14T23:59:59.000Z

    . have built a wide field Light Emitting Diode (LED) illumination based, 1 mm diameter fiber bundle micro-endoscope capable of sub-cellular resolution imaging (4 ?m resolution with 750 ?m field of view) for pre-cancer detection in the oral mucosa [16...

  2. The deflagration stage of Chandrasekhar mass models for type Ia supernovae. I. Early evolution

    SciTech Connect (OSTI)

    Malone, C. M.; Woosley, S. E.; Dong, S. [Department of Astronomy and Astrophysics, The University of California, Santa Cruz, Santa Cruz, CA 95064 (United States); Nonaka, A.; Almgren, A. S.; Bell, J. B. [Center for Computational Sciences and Engineering, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Zingale, M. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794 (United States)

    2014-02-10T23:59:59.000Z

    We present high-resolution, full-star simulations of the post-ignition phase of Type Ia supernovae using the compressible hydrodynamics code Castro. Initial conditions, including the turbulent velocity field and ignition site, are imported directly from a simulation of the last few hours of presupernova convection using a low Mach number code, Maestro. Adaptive mesh refinement allows the initial burning front to be modeled with an effective resolution of 36,864{sup 3} zones (136 m zone{sup –1}). The initial rise and expansion of the deflagration front are tracked until burning reaches the star's edge and the role of the background turbulence on the flame is investigated. The effect of artificially moving the ignition location closer to the star's center is explored. The degree to which turbulence affects the burning front decreases with increasing ignition radius since the buoyancy force is stronger at larger radii. Even central ignition—in the presence of a background convective flow field—is rapidly carried off-center as the flame is carried by the flow field. We compare our results to analytic models for burning thermals, and find that they reproduce the general trends of the bubble's size and mass, but underpredict the amount of buoyant acceleration due to simplifying assumptions of the bubble's properties. Overall, we find that the amount of mass that burns prior to flame break out is small, consistent with a gravitationally confined detonation' occurring at a later epoch, but additional burning will occur following breakout that may modify this conclusion.

  3. Post-diagnosis weight gain and breast cancer recurrence in women with early stage breast cancer

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    Hunter DJ, Willett WC (1996): Nutrition and breast cancer.Cancer Causes Control 7:56- 37. Weiderpass E, Braaten T,of premenopausal breast cancer. Cancer Epidemiol.Biomarkers

  4. The Multi-Family Calculator: An Early Stage Tool for Integrated Design Teams

    E-Print Network [OSTI]

    Arcangeli, G.; Woodings, C.

    2013-01-01T23:59:59.000Z

    Multifamily Energy Calculator Rapid modeling of mid-rise residential projects Greg Arcangeli | Graduate Engineer | LEED AP BD+C Cristina Woodings | Graduate Engineer ESL-KT-13-12-19 CATEE 2013: Clean Air Through Energy Efficiency Conference, San... with variables that explore common energy conservation measures. Integrate cost. ? A powerful tool for client consultation —”live” modeling with instantaneous feedback. Next Steps ESL-KT-13-12-19 CATEE 2013: Clean Air Through Energy Efficiency Conference, San...

  5. Caught in the act: the stage as a backdrop for defining crime in early modern England 

    E-Print Network [OSTI]

    Orman, Lindsay Erin

    2013-02-22T23:59:59.000Z

    the decay of the landed gentry and feudal power structures as they were replaced by a prosperous merchant class and capitalist ideas. A national identity was newly forged out of the divided loyalties to feudal lords, and the Church retained supreme moral... transgressions that they thetnselves were able to justify and evade punishment for based on their social positions. The rise in capitalism and the impending death of the feudal aristocracy, the growing scientific enlightenment, the rise of the middle class...

  6. Estimates of the duration of the early and late stage of gambiense sleeping sickness

    E-Print Network [OSTI]

    Checchi, Francesco; Filipe, Joao A N; Haydon, Daniel T; Chandramohan, Daniel; Chappuis, Francois

    2008-02-08T23:59:59.000Z

    .001). Patients followed up at least once also differed systematically from those never seen again: more were female (1528/3178 or 48.1% versus 1565/3485 or 44.9%; p = 0.01); more had a zero-WBC count in CSF (1438/3178 or 45.2% versus 1472/3485 or 42.2%; p = 0... (%) 660 (57.9) 410 (18.5) 249 (84.1) 47 (58.0) 1502 (68.2) 617 (84.5) 3485 (52.3) Seen at least once (%) 480 (42.1) 1805 (81.5) 47 (15.9) 34 (42.0) 699 (31.8) 113 (15.5) 3178 (47.7) Seen at 3 months (%) 250 (21.9) 1180 (53.3) 23 (7.8) 25 (30.9) 412 (18...

  7. Sefaira Launches EnergyPlus-Based Early Stage Design Tool For...

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

    whole building energy simulation engine-to allow architects to quickly explore the thermal comfort implications of building design alternatives. A new product, Sefaira...

  8. Stainless steel pitting and early-stage stress corrosion cracking under ultra-low elastic load

    E-Print Network [OSTI]

    Volinsky, Alex A.

    in the nuclear power plants, petrochemical and aerospace industries, bridges and ships. Much effort has been of the reasons is that the mechanisms of SCC crack initiation and propagation are possibly altered in the process, when pitting precedes SCC, the fundamental steps in the overall process include: pit initiation, pit

  9. Mechanical modeling of tissue response during early stage entubulated peripheral nerve regeneration

    E-Print Network [OSTI]

    Buydash, Melissa Christine

    2013-01-01T23:59:59.000Z

    After severe peripheral nerve injury, such as transection, regeneration has been observed over variable gap lengths with the use of the nerve stump entubulation method. Following entubulation, exudate from transected nerve ...

  10. EARLY DEVELOPMENTAL STAGES OF THE BROWN SHRIMP, Penaeus aztecus IVES, REARED IN THE LABORATORY 1

    E-Print Network [OSTI]

    . :Manuscript received September 1970. FISHERY BULLETIN: VOL. 69, NO. I, 1971. cies, accurate identification and white shrimps. METHODS AND MATERIALS Larvae of the brown shrimp were first suc- cessfully cultured on these figures are intended to in- dicate only relative size and position, not to show details of setation

  11. The Multi-Family Calculator: An Early Stage Tool for Integrated Design Teams 

    E-Print Network [OSTI]

    Arcangeli, G.; Woodings, C.

    2013-01-01T23:59:59.000Z

    Dec. 16-18 www.austinenergy.com 5 FY 2013 ? AEGB rated: 1538 units (1,744,647 sq ft) ? Code permitted: 8580 units under IECC 2009 Applied multiplier example for peak demand: IECC 2009 over the baseline = 0.5 kW/unit savings FY 2013 code savings = 0.5 kW...: 40% Cooling type: Water-cooled centrifugal chillers Plug and process load: 0.727 W/sf + Other characteristics Prototype Buildings ESL-KT-13-12-19 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 www...

  12. Analysis of the variability of sugar beet (Beta vulgaris L) growth during the early stages.

    E-Print Network [OSTI]

    Boyer, Edmond

    , plastic mulches, sowing depths, tillage operations, cultivars). Growth curves were obtained for each of the differences between soil types, mulch conditions and emer- gence dates. Aerial biomass varied widely betterave :différents types de sols, dates de semis, modalités de couverture du sol (mulch plastique ou sol

  13. Some physiological effects of cadmium on the early life stages of the estuarine teleost Fundulus similis

    E-Print Network [OSTI]

    McCulloch, Wayne LeRoy

    1977-01-01T23:59:59.000Z

    enryiv, (Yoshida et al. , 19/6). Again, these effe. t. -. have been demonstrated in vit;o, and may rot apply to enzyme kinetics in vi. o due to possible protective d=vi "es such as metal 'otnionein. Oxygen consumption reflects the m tabol ic rate...

  14. A tool for evaluating the early-stage design of corvettes

    E-Print Network [OSTI]

    Kara, Mustafa Yasin

    2010-01-01T23:59:59.000Z

    In naval architecture terminology, the term "corvette" refers to a class of ships that are shorter than frigates and longer than patrol boats. Corvettes have always been the centerpiece of the navies whose mission requirements ...

  15. Sefaira Launches EnergyPlus-Based Early Stage Design Tool For Mechanical

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015ParentsMiddle|Security Enforcement Documentsis Not an OptionEngineers

  16. Sefaira Launches EnergyPlus-Based Early Stage Design Tool For Mechanical

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn'tOriginEducationVideo »UsageSecretary of Energy Advisory BoardSecuringSee the Wind See

  17. Department of Energy to Invest up to $12 Million to Support Early Stage

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0andEnergyGlobal Nuclearof aDepartment ofthe SantaSolar EnergySolar

  18. Department of Energy to Invest up to $12 Million to Support Early Stage

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:Revised Finding of No53197E T A * S H I E L D * A L A RSubcommitteeand

  19. Region Solar Inc Solar Inc California Renewable Energy Solar Early stage startup

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation, searchRayreviewAl., 2005) | OpenRegan,

  20. Water rites : a city stage for Boston

    E-Print Network [OSTI]

    Mansfield, Timothy Denton

    1990-01-01T23:59:59.000Z

    This thesis focuses on the design of a public theatre for the entire city of Boston, a "city stage." The intention is to explore through design the boundaries of an architectural setting for large scale performance art; ...

  1. Lysine Metabolism by the Mammary Gland of Lactating Goats at Two Stages of Lactation

    E-Print Network [OSTI]

    Bequette, Brian J.

    ) in response to an i.v. infusion of lysine (Lys) plus methionine (Met). At each stage of lactation [2-15 N] and [1-13 C; 6,6-2 H2] Lys kinetics were performed on the last day of 5-d i.v. infusion of saline higher in early than in late lactation, but LM infusion did not affect these variables. Regardless

  2. CHERRY: CHECKPOINTED EARLY RESOURCE RECYCLING

    E-Print Network [OSTI]

    Torrellas, Josep

    : Decouple recycling from retirement #12;Cherry: Checkpointed Early Resource Recycling in Out Slide 4/41 PROPOSAL: EARLY RECYCLING Decouple resource recycling from instruction retirement Recycle1 2 3 CHERRY: CHECKPOINTED EARLY RESOURCE RECYCLING Jos´e F. Mart´inez1 , Jose Renau2 Michael C

  3. Ultra-high speed vacuum pump system with first stage turbofan and second stage turbomolecular pump

    DOE Patents [OSTI]

    Jostlein, Hans

    2006-04-04T23:59:59.000Z

    An ultra-high speed vacuum pump evacuation system includes a first stage ultra-high speed turbofan and a second stage conventional turbomolecular pump. The turbofan is either connected in series to a chamber to be evacuated, or is optionally disposed entirely within the chamber. The turbofan employs large diameter rotor blades operating at high linear blade velocity to impart an ultra-high pumping speed to a fluid. The second stage turbomolecular pump is fluidly connected downstream from the first stage turbofan. In operation, the first stage turbofan operates in a pre-existing vacuum, with the fluid asserting only small axial forces upon the rotor blades. The turbofan imparts a velocity to fluid particles towards an outlet at a high volume rate, but moderate compression ratio. The second stage conventional turbomolecular pump then compresses the fluid to pressures for evacuation by a roughing pump.

  4. Early Top Physics at CMS Experiment

    E-Print Network [OSTI]

    Jesus Manuel Vizan

    2008-10-17T23:59:59.000Z

    The top quark was discovered at the Tevatron in 1995. For the last decade the study of its properties has been a major theme in the worldwide experimental high energy physics program. The advent of the LHC opens up a new era in top quark physics; because of the large $t\\bar{t}$ cross-section and the high luminosity, the LHC can be thought of as a top factory. Here we present the prospects and plans for ttbar physics at CMS at an early stage of the experiment, covering from the initial establishment of the top signal, to the first measurements that become possible for an integrated luminosity of 100 $pb^{-1}$, considering a realistic detector performance.

  5. Staged mold for encapsulating hazardous wastes

    DOE Patents [OSTI]

    Unger, Samuel L. (Los Angeles, CA); Telles, Rodney W. (Alhambra, CA); Lubowitz, Hyman R. (Rolling Hills Estates, CA)

    1990-01-01T23:59:59.000Z

    A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides. In the third stage, the mold with the jacketed agglomerate is inverted, the first mold base is removed exposing the former bottom of the agglomerate, powdered thermoplastic is poured over the former bottom, the first mold base is replaced to compress the thermoplastic, heat is applied to melt the new thermoplastic and the top part of the jacket on the sides, the plastic is cooled jacketing the bottom and fusing with the jacketing on the sides to complete the seamless encapsulation of the agglomerate.

  6. Staged mold for encapsulating hazardous wastes

    DOE Patents [OSTI]

    Unger, Samuel L. (Los Angeles, CA); Telles, Rodney W. (Alhambra, CA); Lubowitz, Hyman R. (Rolling Hills Estates, CA)

    1988-01-01T23:59:59.000Z

    A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides. In the third stage, the mold with the jacketed agglomerate is inverted, the first mold base is removed exposing the former bottom of the agglomerate, powdered thermoplastic is poured over the former bottom, the first mold base is replaced to compress the thermoplastic, heat is applied to melt the new thermoplastic and the top part of the jacket on the sides, the plastic is cooled jacketing the bottom and fusing with the jacketing on the sides to complete the seamless encapsulation of the agglomerate.

  7. Article mounting and position adjustment stage

    DOE Patents [OSTI]

    Cutburth, Ronald W. (Tracy, CA); Silva, Leonard L. (Livermore, CA)

    1988-01-01T23:59:59.000Z

    An improved adjustment and mounting stage of the type used for the detection of laser beams is disclosed. A ring sensor holder has locating pins on a first side thereof which are positioned within a linear keyway in a surrounding housing for permitting reciprocal movement of the ring along the keyway. A rotatable ring gear is positioned within the housing on the other side of the ring from the linear keyway and includes an oval keyway which drives the ring along the linear keyway upon rotation of the gear. Motor-driven single-stage and dual (x, y) stage adjustment systems are disclosed which are of compact construction and include a large laser transmission hole.

  8. Thermally integrated staged methanol reformer and method

    DOE Patents [OSTI]

    Skala, Glenn William (Churchville, NY); Hart-Predmore, David James (Rochester, NY); Pettit, William Henry (Rochester, NY); Borup, Rodney Lynn (East Rochester, NY)

    2001-01-01T23:59:59.000Z

    A thermally integrated two-stage methanol reformer including a heat exchanger and first and second reactors colocated in a common housing in which a gaseous heat transfer medium circulates to carry heat from the heat exchanger into the reactors. The heat transfer medium comprises principally hydrogen, carbon dioxide, methanol vapor and water vapor formed in a first stage reforming reaction. A small portion of the circulating heat transfer medium is drawn off and reacted in a second stage reforming reaction which substantially completes the reaction of the methanol and water remaining in the drawn-off portion. Preferably, a PrOx reactor will be included in the housing upstream of the heat exchanger to supplement the heat provided by the heat exchanger.

  9. STAGING OF FUEL CELLS - PHASE II

    SciTech Connect (OSTI)

    Per Onnerud; Suresh Sriramulu

    2002-08-29T23:59:59.000Z

    TIAX has executed a laboratory-based development program aiming at the improvement of stationary fuel cell systems. The two-year long development program resulted in an improved understanding of staged fuel cells and inorganic proton conductors through evaluation of results from a number of laboratory tasks: (1) Development of a fuel cell modeling tool--Multi-scale model was developed, capable of analyzing the effects of materials and operating conditions; and this model allowed studying various ''what-if'' conditions for hypothetically staged fuel cells; (2) Study of new high temperature proton conductor--TIAX discovery of a new class of sulfonated inorganics capable of conducting protons when exposed to water; and study involved synthesis and conductivity measurements of novel compounds up to 140 C; (3) Electrochemical fuel cell measurements--the feasibility of staged fuel cells was tested in TIAX's fuel cell laboratories experimental design was based on results from modeling.

  10. Article mounting and position adjustment stage

    DOE Patents [OSTI]

    Cutburth, R.W.; Silva, L.L.

    1988-05-10T23:59:59.000Z

    An improved adjustment and mounting stage of the type used for the detection of laser beams is disclosed. A ring sensor holder has locating pins on a first side thereof which are positioned within a linear keyway in a surrounding housing for permitting reciprocal movement of the ring along the keyway. A rotatable ring gear is positioned within the housing on the other side of the ring from the linear keyway and includes an oval keyway which drives the ring along the linear keyway upon rotation of the gear. Motor-driven single-stage and dual (x, y) stage adjustment systems are disclosed which are of compact construction and include a large laser transmission hole. 6 figs.

  11. Two-stage coal liquefaction process

    DOE Patents [OSTI]

    Skinner, Ronald W. (Allentown, PA); Tao, John C. (Perkiomenville, PA); Znaimer, Samuel (Vancouver, CA)

    1985-01-01T23:59:59.000Z

    An improved SRC-I two-stage coal liquefaction process which improves the product slate is provided. Substantially all of the net yield of 650.degree.-850.degree. F. heavy distillate from the LC-Finer is combined with the SRC process solvent, substantially all of the net 400.degree.-650.degree. F. middle distillate from the SRC section is combined with the hydrocracker solvent in the LC-Finer, and the initial boiling point of the SRC process solvent is increased sufficiently high to produce a net yield of 650.degree.-850.degree. F. heavy distillate of zero for the two-stage liquefaction process.

  12. Multi-Stage Bunch Compressors for the International Linear Collider

    E-Print Network [OSTI]

    Tenenbaum, Peter G.; Raubenheimer, Tor O.; Wolski, Andrzej

    2005-01-01T23:59:59.000Z

    150 µm RMS. The multi-stage compressors are somewhat longerthan the single-stage compressor and require additional RFof the NLC Bunch Compressor,” (1999). [4] C. Adolphsen,

  13. Computations with Disjunctive Cuts for Two-Stage Stochastic Mixed ...

    E-Print Network [OSTI]

    2007-08-29T23:59:59.000Z

    profit from expanding and running a given supply chain. The first-stage ... uncertainty appears in the net profit parameter in the second-stage objective function,.

  14. Two-stage Catalytic Reduction of NOx with Hydrocarbons

    SciTech Connect (OSTI)

    Umit S. Ozkan; Erik M. Holmgreen; Matthew M. Yung; Jonathan Halter; Joel Hiltner

    2005-12-21T23:59:59.000Z

    A two-stage system for the catalytic reduction of NO from lean-burn natural gas reciprocating engine exhaust is investigated. Each of the two stages uses a distinct catalyst. The first stage is oxidation of NO to NO{sub 2} and the second stage is reduction of NO{sub 2} to N{sub 2} with a hydrocarbon. The central idea is that since NO{sub 2} is a more easily reduced species than NO, it should be better able to compete with oxygen for the combustion reaction of hydrocarbon, which is a challenge in lean conditions. Early work focused on demonstrating that the N{sub 2} yield obtained when NO{sub 2} was reduced was greater than when NO was reduced. NO{sub 2} reduction catalysts were designed and silver supported on alumina (Ag/Al{sub 2}O{sub 3}) was found to be quite active, able to achieve 95% N{sub 2} yield in 10% O{sub 2} using propane as the reducing agent. The design of a catalyst for NO oxidation was also investigated, and a Co/TiO{sub 2} catalyst prepared by sol-gel was shown to have high activity for the reaction, able to reach equilibrium conversion of 80% at 300 C at GHSV of 50,000h{sup -1}. After it was shown that NO{sub 2} could be more easily reduced to N{sub 2} than NO, the focus shifted on developing a catalyst that could use methane as the reducing agent. The Ag/Al{sub 2}O{sub 3} catalyst was tested and found to be inactive for NOx reduction with methane. Through iterative catalyst design, a palladium-based catalyst on a sulfated-zirconia support (Pd/SZ) was synthesized and shown to be able to selectively reduce NO{sub 2} in lean conditions using methane. Development of catalysts for the oxidation reaction also continued and higher activity, as well as stability in 10% water, was observed on a Co/ZrO{sub 2} catalyst, which reached equilibrium conversion of 94% at 250 C at the same GHSV. The Co/ZrO{sub 2} catalyst was also found to be extremely active for oxidation of CO, ethane, and propane, which could potential eliminate the need for any separate oxidation catalyst. At every stage, catalyst synthesis was guided by the insights gained through detailed characterization of the catalysts using many surface and bulk analysis techniques such as X-ray diffraction, X-ray photoelectron spectroscopy, Temperature-programmed Reduction, Temperature programmed Desorption, and Diffuse Reflectance InfraRed Fourier Transform Spectroscopy as well as steady state reaction experiments. Once active catalysts for each stage had been developed, a physical mixture of the two catalysts was tested for the reduction of NO with methane in lean conditions. These experiments using a mixture of the catalysts produced N2 yields as high as 90%. In the presence of 10% water, the catalyst mixture produced 75% N{sub 2} yield, without any optimization. The dual catalyst system developed has the potential to be implemented in lean-burn natural gas engines for reducing NOx in lean exhaust as well as eliminating CO and unburned hydrocarbons without any fuel penalty or any system modifications. If funding continues, future work will focus on improving the hydrothermal stability of the system to bring the technology closer to application.

  15. Fusion in a Staged Z-pinch

    E-Print Network [OSTI]

    Rahman, H. U.; Ney, P.; Rostoker, N.; Wessel, F. J.

    2009-01-01T23:59:59.000Z

    York (1978) Teller, E. : Fusion. Academic Press, New York (O R I G I N A L A RT I C L E Fusion in a Staged Z-pinch H.U.implosion the sim- ulated fusion-energy yield is 7.6 MJ,

  16. Early retirement for weaponeers?

    SciTech Connect (OSTI)

    Weisman, J.

    1994-07-01T23:59:59.000Z

    Department of Energy`s Lawrence Livermore Laboratory`s once-vital nuclear weapons division is now in dire straits. The laboratory was established in 1952, during the titanic struggle over the hydrogen bomb, has grown steadily from $7 million to its peak of $1.1 billion in 1991. The future for key members of their most experienced weapons design team is uncertain. Over the past two years, Livermore`s operating budget has fallen by 12.5 percent or $127.6 million. Nearly 750 employees, 10 percent of the work force, accepted early retirement offers last year. Further budget cuts will force another 300 to 600 personnel out by the end of 1995. The future resides in the U.S. Congress.

  17. receive DOE Early Career Award

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

    hydrological controls on carbon cycling in flood plain ecosystems into Earth System Models (ESM). "The DOE Early Career Research Award represents both a significant honor...

  18. Solid-State Lighting: Early Lessons Learned on the Way to Market

    SciTech Connect (OSTI)

    Sandahl, Linda J.; Cort, Katherine A.; Gordon, Kelly L.

    2013-12-31T23:59:59.000Z

    The purpose of this report is to document early challenges and lessons learned in the solid-state lighting (SSL) market development as part of the DOE’s SSL Program efforts to continually evaluate market progress in this area. This report summarizes early actions taken by DOE and others to avoid potential problems anticipated based on lessons learned from the market introduction of compact fluorescent lamps and identifies issues, challenges, and new lessons that have been learned in the early stages of the SSL market introduction. This study identifies and characterizes12 key lessons that have been distilled from DOE SSL program results.

  19. Multi-stage quantum absorption heat pumps

    E-Print Network [OSTI]

    Luis A. Correa

    2014-01-16T23:59:59.000Z

    It is well known that heat pumps, while being all limited by the same basic thermodynamic laws, may find realization on systems as "small" and "quantum" as a three-level maser. In order to quantitatively assess how the performance of these devices scales with their size, we design generalized $N$-dimensional ideal heat pumps by merging $N-2$ elementary three-level stages. We set them to operate in the absorption chiller mode between given hot and cold baths, and study their maximum achievable cooling power and the corresponding efficiency as a function of $N$. While the efficiency at maximum power is roughly size-independent, the power itself slightly increases with the dimension, quickly saturating to a constant. Thus, interestingly, scaling up autonomous quantum heat pumps does not render a significant enhancement beyond the optimal double-stage configuration.

  20. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John S. Abughazaleh; Mushtaq Ahmed; Ashok Anand; John H. Anderson; Charles Benham; Fred D. Brent; Thomas E. Chance; William K. Davis; Raymond F. Drnevich; Larry Hall; Ming He; Stephen A. Lang; David Mintner; Wendy Moore; Jimmy O. Ong; George Potoczniak; Adela G. Sanchez; Charles H. Schrader; Lalit S. Shah; Kalapi D. Sheth; Phil J. Shires; Rae Song

    2001-05-17T23:59:59.000Z

    The overall objective of this project is the three-phase development of an Early Entrance Coproduction Plant (EECP) that produces at least one product from at least two of the following three categories: Electric power (or heat); Fuels; and Chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or some other carbonaceous feedstock, such as petroleum coke. The objective of Phase I was to determine the feasibility and define the concept for the EECP located at a specific site and to develop a Research, Development, and Testing (RD and T) Plan for implementation in Phase II. This objective has now been accomplished. A specific site, Motiva Refinery in Port Arthur, Texas, has been selected as the location best suited for the EECP. The accomplishments of Phase I are discussed in detail in this Phase I Concept Report. A RD and T Plan and a preliminary project financing plan have been developed and are submitted separately from this report.

  1. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John S. Abughazaleh; Mushtaq Ahmed; Ashok Anand; John H. Anderson; Charles Benham; Fred D. Brent; Thomas E. Chance; William K. Davis; Raymond F. Drnevich; Larry Hall; Ming He; Stephen A. Lang; Jimmy O. Ong; Sarah J. Patel; George Potoczniak; Adela G. Sanchez; Charles H. Schrader; Lalit S. Shah; Phil J. Shires; Rae Song

    2001-02-15T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or other carbonaceous feedstocks. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site and to develop a Research, Development, and Testing Plan (RD and T) for implementation in Phase II. The objective of Phase II is to implement the RD and T as outlined in the Phase I RD and T Plan to enhance the development and commercial acceptance of coproduction technology that produces high-value products, particularly those that are critical to our domestic fuel and power requirements. The project will resolve critical knowledge and technology gaps on the integration of gasification and downstream processing to coproduce some combination of power, fuels, and chemicals from coal and/or other carbonaceous feedstocks. The objective of Phase III is to develop an engineering design package and a financing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information that will be needed to move the EECP forward to detailed design, construction, and operation by industry.

  2. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Mushtaq Ahmed; John H. Anderson; Earl R. Berry; Troy Raybold; Lalit S. Shah; Kenneth A. Yackly

    2003-12-16T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or other carbonaceous feedstocks. The objectives of Phase I were to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan for implementation in Phase II; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology that produces high-value products, particularly those that are critical to our domestic fuel and power requirements. The work performed under Phase II will resolve critical knowledge and technology gaps on the integration of gasification and downstream processing to coproduce some combination of power, fuels, and chemicals from coal and/or other carbonaceous feedstocks. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation.

  3. Early Entrance Coproduction Plant

    SciTech Connect (OSTI)

    Mushtaq Ahmed; John H. Anderson; Earl R. Berry; Troy Raybold; Lalit S. Shah; Kenneth A. Yackly

    2004-01-26T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or other carbonaceous feedstocks. The objectives of Phase I were to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan for implementation in Phase II; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology that produces high-value products, particularly those that are critical to our domestic fuel and power requirements. The work performed under Phase II will resolve critical knowledge and technology gaps on the integration of gasification and downstream processing to coproduce some combination of power, fuels, and chemicals from coal and/or other carbonaceous feedstocks. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation.

  4. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John S. Abughazaleh; Mushtaq Ahmed; Ashok Anand; John H. Anderson; Charles Benham; Fred D. Brent; Thomas E. Chance; William K. Davis; Raymond F. Drnevich; Larry Hall; Ming He; Stephen A. Lang; Jimmy O. Ong; Sarah J. Patel; George Potoczniak; Adela G. Sanchez; Charles H. Schrader; Lalit S. Shah; Phil J. Shires; Rae Song

    2000-10-26T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or other carbonaceous feedstock. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site and to develop a Research, Development, and Testing Plan (RD and T) for implementation in Phase II. The objective of Phase II is to implement the RD and T as outlined in the Phase I RD and T Plan to enhance the development and commercial acceptance of coproduction technology that produces high-value products, particularly those that are critical to our domestic fuel and power requirements. The project will resolve critical knowledge and technology gaps on the integration of gasification and downstream processing to coproduce some combination of power, fuels, and chemicals from coal and other feedstocks. The objective of Phase III is to develop an engineering design package and a financing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information that will be needed to move the EECP forward to detailed design, construction, and operation by industry.

  5. A New Methodology for Early Anomaly Detection of BWR Instabilities

    SciTech Connect (OSTI)

    Ivanov, K. N.

    2005-11-27T23:59:59.000Z

    The objective of the performed research is to develop an early anomaly detection methodology so as to enhance safety, availability, and operational flexibility of Boiling Water Reactor (BWR) nuclear power plants. The technical approach relies on suppression of potential power oscillations in BWRs by detecting small anomalies at an early stage and taking appropriate prognostic actions based on an anticipated operation schedule. The research utilizes a model of coupled (two-phase) thermal-hydraulic and neutron flux dynamics, which is used as a generator of time series data for anomaly detection at an early stage. The model captures critical nonlinear features of coupled thermal-hydraulic and nuclear reactor dynamics and (slow time-scale) evolution of the anomalies as non-stationary parameters. The time series data derived from this nonlinear non-stationary model serves as the source of information for generating the symbolic dynamics for characterization of model parameter changes that quantitatively represent small anomalies. The major focus of the presented research activity was on developing and qualifying algorithms of pattern recognition for power instability based on anomaly detection from time series data, which later can be used to formulate real-time decision and control algorithms for suppression of power oscillations for a variety of anticipated operating conditions. The research being performed in the framework of this project is essential to make significant improvement in the capability of thermal instability analyses for enhancing safety, availability, and operational flexibility of currently operating and next generation BWRs.

  6. Training for Early Career Researchers

    E-Print Network [OSTI]

    Greifswald, Ernst-Moritz-Arndt-Universität

    Training for Early Career Researchers Research Management Training for 16 ­ 17 September 2014 training in an intensive, yet effective workshop form over two days. There is a strong emphasis on European Management Training for Early Career Researchers 16 ­ 17 September 2014 in Hamburg #12;

  7. Short-Term Hurricane Impacts on a Neotropical Community of Marked Birds and Implications for Early-

    E-Print Network [OSTI]

    Winker, Kevin

    Short-Term Hurricane Impacts on a Neotropical Community of Marked Birds and Implications for Early- Stage Community Resilience Andrew B. Johnson1,2 , Kevin Winker1 * 1 University of Alaska Museum birds, following this community through the catastrophic destruction of its forest habitat by Hurricane

  8. A review of "Comedy, Youth, Manhood in Early Modern England." by Ira Clark

    E-Print Network [OSTI]

    Byron Nelson

    2004-01-01T23:59:59.000Z

    by the comic depictions of genuine social anxieties. Developing the ideas of social historians like Anthony Fletcher, Clark argues that manhood in the early modern period was an achievement or a status to be attained by effort, not an automatic stage...

  9. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John H. Anderson; William K. Davis; Thomas W. Sloop

    2001-03-21T23:59:59.000Z

    As part of the Department of Energy's (DOE) Gasification Technologies and Transportation Fuels and Chemicals programs, DOE and Texaco are partners through Cooperative Agreement DE-FC26-99FT40658 to determine the feasibility of developing, constructing and operating an Early Entrance Coproduction Plant (EECP). The overall objective of the project is the three-phase development of an EECP that produces at least one product from at least two of the following three categories: Electric power (or heat); Fuels; and Chemicals. The objective is to have these products produced by technologies capable of using synthesis gas derived from coal and/or some other carbonaceous feedstock, such as petroleum coke. The objective of Phase I was to determine the feasibility and define the concept for the EECP located at a specific site and to develop a Research, Development, and Testing (RD and T) Plan for implementation in Phase II. This objective has now been accomplished. A specific site, Motiva Refinery in Port Arthur, Texas, has been selected as the location best suited for the EECP. The specific work requirements of Phase I included: Prepare an EECP Preliminary Concept Report covering Tasks 2-8 specified in the Cooperative Agreement; Develop a Research, Development, and Testing (RD and T) Plan as specified in Task 9 of the Cooperative Agreement for implementation in Phase II; and Develop a Preliminary Project Financing Plan for the EECP Project as specified in Task 10 of the Cooperative Agreement. This document is the Preliminary Project Financing Plan for the design, construction, and operation of the EECP at the Motiva Port Arthur Refinery.

  10. The influence of magnetic field strength in ionization stage on ion transport between two stages of a double stage Hall thruster

    SciTech Connect (OSTI)

    Yu Daren; Song Maojiang; Li Hong; Liu Hui; Han Ke [Lab of Plasma Propulsion, Mail Box 458, Harbin Institute of Technology, Harbin 150001 (China)

    2012-11-15T23:59:59.000Z

    It is futile for a double stage Hall thruster to design a special ionization stage if the ionized ions cannot enter the acceleration stage. Based on this viewpoint, the ion transport under different magnetic field strengths in the ionization stage is investigated, and the physical mechanisms affecting the ion transport are analyzed in this paper. With a combined experimental and particle-in-cell simulation study, it is found that the ion transport between two stages is chiefly affected by the potential well, the potential barrier, and the potential drop at the bottom of potential well. With the increase of magnetic field strength in the ionization stage, there is larger plasma density caused by larger potential well. Furthermore, the potential barrier near the intermediate electrode declines first and then rises up while the potential drop at the bottom of potential well rises up first and then declines as the magnetic field strength increases in the ionization stage. Consequently, both the ion current entering the acceleration stage and the total ion current ejected from the thruster rise up first and then decline as the magnetic field strength increases in the ionization stage. Therefore, there is an optimal magnetic field strength in the ionization stage to guide the ion transport between two stages.

  11. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Fred D. Brent; Lalit Shah; Earl Berry; Charles H. Schrader; John Anderson; Ming He; James F. Stevens; Centha A. Davis; Michael Henley; Jerome Mayer; Harry Tsang; Jimell Erwin; Jennifer Adams; Michael Tillman; Chris Taylor; Marjan J. Roos; Robert F. Earhart

    2004-01-27T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC or TES (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. Each of the EECP subsystems was assessed for technical risks and barriers. A plan was developed to mitigate the identified risks (Phase II RD&T Plan, October 2000). The potential technical and economic risks to the EECP from Task 2.5 can be mitigated by demonstrating that the end-use products derived from the upgrading of the F-T synthesis total liquid product can meet or exceed current specifications for the manufacture of ethylene and propylene chemicals from F-T naphtha, for the generation of hydrogen from F-T naphtha to power fuel cells, for direct blending of F-T diesels into transportation fuels, for the conversion of F-T heavy product wax to transportation fuels, and the conversion of F-T Heavy product wax to a valuable high melting point food-grade specialty wax product. Product evaluations conducted under Task 2.5 of Phase II successfully mitigated the above technical and economic risks to the EECP with the development of product yields and product qualities for the production of chemicals, transportation fuels, and specialty food-grade waxes from the F-T synthesis products.

  12. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    David Storm; Govanon Nongbri; Steve Decanio; Ming He; Lalit Shah; Charles Schrader; Earl Berry; Peter Ricci; Belma Demirel; Charles Benham; Mark Bohn

    2004-01-12T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC or TES (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, Inc., GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. During Phase I, a design basis for the Fischer-Tropsch Synthesis section was developed based on limited experience with the specified feed gas and operating conditions. The objective of this Task in Phase II RD&T work was to confirm the performance of the F-T reactor at the set design conditions. Although much of the research, development, and testing work were done by TES outside of this project, several important issues were addressed in this phase of the project. They included Rejuvenation/Regeneration of the Fischer-Tropsch Catalyst, online Catalyst Withdrawal and Addition from the synthesis reactor, and the Fischer-Tropsch Design Basis Confirmation. In Phase III the results from these RD&T work will be incorporated in developing the engineering design package. This Topical Report documents the Phase II RD&T work that was completed for this task.

  13. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John Anderson; Charles Schrader

    2004-01-26T23:59:59.000Z

    In 1999, the U. S. Department of Energy (DOE) awarded a Cooperative Agreement to Texaco Energy Systems Inc. to provide a preliminary engineering design of an Early Entrance Coproduction Plant (EECP). Since the award, continuous and diligent work has been undertaken to achieve the design of an economical facility that makes strides toward attaining the goal of DOE's Vision 21 Program. The objective of the EECP is to convert coal and/or petroleum coke to power while coproducing transportation fuels, chemicals, and useful utilities such as steam. This objective is being pursued in a three-phase effort through the partnership of the DOE with prime contractor Texaco Energy Systems, LLC. (TES), the successor to Texaco Energy Systems, Inc. The key subcontractors to TES include General Electric (GE), Praxair, and Kellogg Brown and Root. ChevronTexaco provided gasification technology and Rentech Inc.'s Fischer-Tropsch (F-T) technology that has been developed for non-natural gas sources. GE provided gas turbine technology for the combustion of low energy content gas. Praxair provided air separation technology and KBR provided engineering to integrate the facility. A conceptual design was completed in Phase I and the report was accepted by the DOE in May 2001. The Phase I work identified risks and critical research, development, and testing that would improve the probability of technical success of the EECP. The objective of Phase II was to mitigate the risks by executing research, development, and testing. Results from the Phase II work are the subject of this report. As the work of Phase II concluded, it became evident that sufficient, but not necessarily complete, technical information and data would be available to begin Phase III - Preliminary Engineering Design. Work in Phase II requires additional technical development work to correctly apply technology at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The decision to proceed with Phase III centers on locating a new site and favorable commercial and economic factors.

  14. Methods of Determining the Optimum Stage of Maturity for Picking Green-Wrap Tomatoes. 

    E-Print Network [OSTI]

    Sorensen, H. B.

    1955-01-01T23:59:59.000Z

    . With high prices early in the season and a good demand for toma- toes, farmers started picking their tomatoes a little greener each year. Most tomatoes in Texas are now marketed in the "green-wrap" stage. The tomato fruit is considered mature while.... with a relative humidity of 58 to 60 percent. The storage facilities consisted of the chilled rooms operated by the Department of Agricultural Engineering. The boxes of toma- toes were placed on racks in the room to allow good circulation of air. T...

  15. Energy graphics: profiling a building in the pre-design stage

    SciTech Connect (OSTI)

    Kurtz, J.M.

    1982-05-01T23:59:59.000Z

    The design stage is the best time to improve building efficiency by considering site, orientation, landscaping, building shape, and windows in the early planning process. The Energy Graphics technique uses about 20 variables categorized under climate, building design, and occupant needs to get a rough estimate of building performance and identify potential problems and energy-saving opportunities before construction begins. The technique is simple to operate using a desktop computer to analyze internal heat gain and loss. The architect can make design changes on the basis of the computer graphs. 9 figures. (DCK)

  16. Catalytic multi-stage liquefaction (CMSL)

    SciTech Connect (OSTI)

    Comolli, A.G.; Ganguli, P.; Karolkiewicz, W.F.; Lee, T.L.K.; Pradhan, V.R.; Popper, G.A.; Smith, T.; Stalzer, R.

    1996-11-01T23:59:59.000Z

    Under contract with the U.S. Department of Energy, Hydrocarbon Technologies, Inc. has conducted a series of eleven catalytic, multi-stage, liquefaction (CMSL) bench scale runs between February, 1991, and September, 1995. The purpose of these runs was to investigate novel approaches to liquefaction relating to feedstocks, hydrogen source, improved catalysts as well as processing variables, all of which are designed to lower the cost of producing coal-derived liquid products. This report summarizes the technical assessment of these runs, and in particular the evaluation of the economic impact of the results.

  17. Turbine nozzle stage having thermocouple guide tube

    DOE Patents [OSTI]

    Schotsch, Margaret Jones (Greer, SC); Kirkpatrick, Francis Lawrence (late of Galway, NY); Lapine, Eric Michael (Northwood, NH)

    2002-01-01T23:59:59.000Z

    A guide tube is fixed adjacent opposite ends in outer and inner covers of a nozzle stage segment. The guide tube is serpentine in shape between the outer and inner covers and extends through a nozzle vane. An insert is disposed in the nozzle vane and has apertures to accommodate serpentine portions of the guide tube. Cooling steam is also supplied through chambers of the insert on opposite sides of a central insert chamber containing the guide tube. The opposite ends of the guide tube are fixed to sleeves, in turn fixed to the outer and inner covers.

  18. A mechanical model of early salt dome growth 

    E-Print Network [OSTI]

    Irwin, Frank Albert

    1988-01-01T23:59:59.000Z

    salt and the upper layer representing the overlying sediment, is used to study the mechanics of growth in the early stages of salt dome formation. Three cases of this model, each representing a particular rate of removal of the surface topography..., are examined to determine which case best fits observations of salt domes in East Texas, Northwest Germany, and the North Sea. These observations include the spacing and growth rate of the dome and the amount of deformation of the sediments above the dome...

  19. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Abdalla H. Ali; Raj Kamarthi; John H. Anderson; Earl R. Berry; Charles H. Schrader; Lalit S. Shah

    2003-04-16T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are TES (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. During Phase I the team identified the integration of the water produced in the F-T synthesis section with the gasification section as an area of potential synergy. By utilizing the F-T water in the petroleum coke slurry for the gasifier, the EECP can eliminate a potential waste stream and reduce capital costs. There is a low technical risk for this synergy, however, the economic risk, particularly in regards to the water, can be high. The economic costs include the costs of treating the water to meet the locally applicable environmental standards. This option may require expensive chemicals and treatment facilities. EECP Phase II included tests conducted to confirm the viability of integrating F-T water in the slurry feed for the gasifier. Testing conducted at ChevronTexaco's Montebello Technology Center (MTC) included preparing slurries made using petroleum coke with F-T water collected at the LaPorte Alternative Fuels Development Unit (AFDU). The work included bench scale tests to determine the slurry ability of the petroleum coke and F-T water. The results of the tests show that F-T water does not adversely affect slurries for the gasifier. There are a few cases where in fact the addition of F-T water caused favorable changes in viscosity of the slurries. This RD&T task was executed in Phase II and results are reported herein.

  20. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John Anderson; Mark Anselmo; Earl Berry; Mark Bohn; Ming He; Charles H. Schrader; Lalit Shah; Donald Todd; Robert Schavey

    2004-01-12T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to its detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC (TES) (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR). The work was under cooperative agreements with the U.S. Department of Energy (DOE). TES is providing the gasification technology and the Fischer-Tropsch (F-T) technology developed by Rentech Inc., GE is providing the combustion turbine technology, Praxair is providing the air separation technology, and KBR is providing overall engineering. Each of the EECP's subsystems was assessed for technical risks and barriers in Phase I. A plan was identified to mitigate the identified risks (Phase II RD&T Plan, October 2000). The RD&T Plan identified catalyst/wax separation as a potential technical and economic risk. To mitigate risks to the proposed EECP concept, Phase II RD&T included tests for secondary catalyst/wax separation systems as part of Task 2.3--Catalyst/Wax Separation. The LCI Scepter{reg_sign} Microfiltration system was determined to be best suited for producing a filtrate that met the EECP secondary catalyst/wax separation standards of producing F-T wax containing less than10 ppmw solids. As part of task 2.3, micro-filtration removal efficiencies and production rates for two FT feeds, Rentech Inc. bubble column reactor (BCR) product and LaPorte Alternative Fuels Development Unit (AFDU) product, were evaluated. Based on comparisons between the performances of these two materials, the more readily available LaPorte AFDU material was judged an acceptable analog to the BCR material that would be produced in a larger-scale F-T synthesis. The present test was initiated to obtain data in an extended range of concentration for use in the scale-up design of the secondary catalyst/wax separation system that would be operating at the EECP capacity.

  1. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Charles Benham; Mark Bohn; John Anderson; Earl Berry; Fred Brent; Ming He; Randy Roberts; Lalit Shah; Marjan Roos

    2003-09-15T23:59:59.000Z

    The 1999 U. S. Department of Energy (DOE) award to Texaco Energy Systems Inc. (presently Texaco Energy Systems LLC, a subsidiary of ChevronTexaco) was made to provide a Preliminary Engineering Design of an Early Entrance Coproduction Plant (EECP). Since the award presentation, work has been undertaken to achieve an economical concept design that makes strides toward the DOE Vision 21 goal. The objective of the EECP is to convert coal and/or petroleum coke to electric power plus transportation fuels, chemicals and useful utilities such as steam. The use of petroleum coke was added as a fuel to reduce the cost of feedstock and also to increase the probability of commercial implementation of the EECP concept. This objective has been pursued in a three phase effort through the partnership of the DOE with prime contractor Texaco Energy Systems LLC and subcontractors General Electric (GE), Praxair, and Kellogg Brown and Root (KBR). ChevronTexaco is providing gasification technology and Rentech's Fischer-Tropsch technology that has been developed for non-natural gas feed sources. GE is providing gas turbine technology for the combustion of low energy content gas. Praxair is providing air separation technology, and KBR is providing engineering to integrate the facility. The objective of Phase I was to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. Phase I Preliminary Concept Report was completed in 2000. The Phase I Preliminary Concept Report was prepared based on making assumptions for the basis of design for various technologies that are part of the EECP concept. The Phase I Preliminary Concept Report was approved by the DOE in May 2001. The Phase I work identified technical and economic risks and critical research, development, and testing that would improve the probability of the technical and economic success of the EECP. The Project Management Plan (Task 1) for Phase II was approved by the DOE in 2001. The results of RD&T efforts for Phase II are expected to improve the quality of assumptions made in Phase I for basis of design for the EECP concept. The RD&T work plan (Task 2 and 3) for Phase II has been completed. As the RD&T work conducted during Phase II concluded, it became evident that sufficient, but not necessarily complete, technical information and data would be available to begin Phase III - Basic Engineering Design. Also due to the merger of Chevron and Texaco, the proposed refinery site for the EECP was not available. It became apparent that some additional technical development work would be needed to correctly apply the technology at a specific site. The objective of Task 4 of Phase II is to update the concept basis of design produced during Phase I. As part of this task, items that will require design basis changes and are not site dependent have been identified. The team has qualitatively identified the efforts to incorporate the impacts of changes on EECP concept. The design basis has been modified to incorporate those changes. The design basis changes for those components of EECP that are site and feedstock dependent will be done as part of Phase III, once the site has been selected.

  2. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John Anderson; Mark Anselmo; Earl Berry; Mark Bohn; Roko Bujas; Ming He; Ken Kwik; Charles H. Schrader; Lalit Shah; Dennis Slater; Donald Todd; Don Wall

    2003-08-21T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC (TES), a subsidiary of ChevronTexaco, General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, Inc. GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. Each of the EECP subsystems were assessed for technical risks and barriers. A plan was identified to mitigate the identified risks (Phase II RD&T Plan, October 2000). The RD&T Plan identified catalyst/wax separation as a potential technical and economic risk. To mitigate risks to the proposed EECP, Phase II RD&T included tests of an alternative (to Rentech's Dynamic Settler) primary catalyst/wax separation device and secondary catalyst/wax separation systems. The team evaluated multiple technologies for both primary and secondary catalyst/wax separation. Based on successful testing at Rentech (outside of DOE funding) and difficulties in finalizing a contract to demonstrate alternative primary catalyst/wax separation technology (using magnetic separation technology), ChevronTexaco has selected the Rentech Dynamic Settler for primary catalyst/wax separation. Testing has shown the Dynamic Settler is capable of producing filtrate exceeding the proposed EECP primary catalyst/wax separation goal of less than 0.1 wt%. The LCI Scepter{reg_sign} Microfiltration system appeared to be best suited for producing a filtrate that met the EECP secondary catalyst/wax separation standards of 10 parts per million (weight) [ppmw]. The other technologies, magnetic separation and electrostatic separation, were promising and able to reduce the solids concentrations in the filtrate. Additional RD&T will be needed for magnetic separation and electrostatic separation technologies to obtain 10 ppmw filtrate required for the proposed EECP. The Phase II testing reduces the technical and economic risks and provides the information necessary to proceed with the development of an engineering design for the EECP Fischer-Tropsch catalyst/wax separation system.

  3. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Randy Roberts

    2003-04-25T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using petroleum coke and ChevronTexaco's proprietary gasification technology. The objective of Phase I was to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC. (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). ChevronTexaco is providing gasification technology and Fischer-Tropsch technology developed by Rentech, GE is providing combustion turbine technology, Praxair is providing air separation technology and KBR is providing engineering. Each of the EECP subsystems were assessed for technical risks and barriers. A plan was identified to mitigate the identified risks (Phase II RD&T Plan, October 2000). The RD&T Plan identified F-T reactor scale-up as a potential technical risk. The objective of Task 2.3 was to confirm engineering models that allow scale-up to commercial slurry phase bubble column (SPBC) reactors operating in the churn-turbulent flow regime. In developmental work outside the scope of this project, historical data, literature references, and a scale-up from a 1 1/2-in. (3.8 cm) to 6-ft (1.8 m) SPBC reactor have been reviewed. This review formed the background for developing scale-up models for a SPBC reactor operating in the churn-turbulent flow regime. The necessary fundamental physical parameters have been measured and incorporated into the mathematical catalyst/kinetic model developed from the SPBC and CSTR work outside the scope of this EECP project. The mathematical catalyst/kinetic model was used to compare to experimental data obtained at Rentech during the EECP Fischer-Tropsch Confirmation Run (Task 2.1; reported separately). The prediction of carbon monoxide (CO) conversion as a function of days on stream compares quite closely to the experimental data.

  4. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    John H. Anderson; Charles Benham; Earl R. Berry; Ming He; Charles H. Schrader; Lalit S. Shah; O.O. Omatete; T.D. Burchell

    2004-01-12T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC or TES (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. During Phase I the team identified several potential methods to reduce or minimize the environmental impact of the proposed EECP. The EECP Project Team identified F-T catalyst disposal, beneficial gasifier slag usage (other than landfill), and carbon dioxide recovery for the gas turbine exhaust for study under this task. Successfully completing the Task 2.10 RD&T provides additional opportunities for the EECP to meet the goals of DOE's Vision 21 Program. The gasification section offers several opportunities to maximize the environmental benefits of an EECP. The spent F-T catalyst can be sent to landfills or to the gasification section. Testing in Phase II shows that the spent F-T catalyst with a small wax coating can safely meet federal landfill requirements. As an alternative to landfilling, it has been proposed to mix the spent F-T catalyst with the petroleum coke and feed this mixture to the gasification unit. Based on ChevronTexaco's experience with gasification and the characteristics of the spent F-T catalyst this appears to be an excellent opportunity to reduce one potential waste stream. The slag from the gasification unit can be commercially marketed for construction or fuel (such as cement kiln fuel) uses. The technical and economic benefits of these options must be reviewed for the final EECP before incorporating a specific alternative into the design basis. Reducing greenhouse gas emissions, particularly carbon dioxide, is an important goal of the EECP. The Texaco gasification process provides opportunities to capture high purity streams of carbon dioxide. For Phase II, a carbon fiber composite molecular sieve (CFCMS) was tested to determine its potential to remove high purity carbon dioxide from the exhaust of a gas turbine. Testing on with a simulated gas turbine exhaust shows that the CFCMS is able to remove high purity carbon dioxide from the exhaust. However, more development is required to optimize the system.

  5. Multiple stage multiple filter hydrate store

    DOE Patents [OSTI]

    Bjorkman, H.K. Jr.

    1983-05-31T23:59:59.000Z

    An improved hydrate store for a metal halogen battery system is disclosed which employs a multiple stage, multiple filter means for separating the halogen hydrate from the liquid used in forming the hydrate. The filter means is constructed in the form of three separate sections which combine to substantially cover the interior surface of the store container. Exit conduit means is provided in association with the filter means for transmitting liquid passing through the filter means to a hydrate former subsystem. The hydrate former subsystem combines the halogen gas generated during the charging of the battery system with the liquid to form the hydrate in association with the store. Relief valve means is interposed in the exit conduit means for controlling the operation of the separate sections of the filter means, such that the liquid flow through the exit conduit means from each of the separate sections is controlled in a predetermined sequence. The three separate sections of the filter means operate in three discrete stages to provide a substantially uniform liquid flow to the hydrate former subsystem during the charging of the battery system. The separation of the liquid from the hydrate causes an increase in the density of the hydrate by concentrating the hydrate along the filter means. 7 figs.

  6. Device for staged carbon monoxide oxidation

    DOE Patents [OSTI]

    Vanderborgh, Nicholas E. (Los Alamos, NM); Nguyen, Trung V. (College Station, TX); Guante, Jr., Joseph (Denver, CO)

    1993-01-01T23:59:59.000Z

    A method and apparatus for selectively oxidizing carbon monoxide in a hydrogen rich feed stream. The method comprises mixing a feed stream consisting essentially of hydrogen, carbon dioxide, water and carbon monoxide with a first predetermined quantity of oxygen (air). The temperature of the mixed feed/oxygen stream is adjusted in a first the heat exchanger assembly (20) to a first temperature. The mixed feed/oxygen stream is sent to reaction chambers (30,32) having an oxidation catalyst contained therein. The carbon monoxide of the feed stream preferentially absorbs on the catalyst at the first temperature to react with the oxygen in the chambers (30,32) with minimal simultaneous reaction of the hydrogen to form an intermediate hydrogen rich process stream having a lower carbon monoxide content than the feed stream. The elevated outlet temperature of the process stream is carefully controlled in a second heat exchanger assembly (42) to a second temperature above the first temperature. The process stream is then mixed with a second predetermined quantity of oxygen (air). The carbon monoxide of the process stream preferentially reacts with the second quantity of oxygen in a second stage reaction chamber (56) with minimal simultaneous reaction of the hydrogen in the process stream. The reaction produces a hydrogen rich product stream having a lower carbon monoxide content than the process stream. The product stream is then cooled in a third heat exchanger assembly (72) to a third predetermined temperature. Three or more stages may be desirable, each with metered oxygen injection.

  7. Multiple stage multiple filter hydrate store

    DOE Patents [OSTI]

    Bjorkman, Jr., Harry K. (Birmingham, MI)

    1983-05-31T23:59:59.000Z

    An improved hydrate store for a metal halogen battery system is disclosed which employs a multiple stage, multiple filter means or separating the halogen hydrate from the liquid used in forming the hydrate. The filter means is constructed in the form of three separate sections which combine to substantially cover the interior surface of the store container. Exit conduit means is provided in association with the filter means for transmitting liquid passing through the filter means to a hydrate former subsystem. The hydrate former subsystem combines the halogen gas generated during the charging of the battery system with the liquid to form the hydrate in association with the store. Relief valve means is interposed in the exit conduit means for controlling the operation of the separate sections of the filter means, such that the liquid flow through the exit conduit means from each of the separate sections is controlled in a predetermined sequence. The three separate sections of the filter means operate in three discrete stages to provide a substantially uniform liquid flow to the hydrate former subsystem during the charging of the battery system. The separation of the liquid from the hydrate causes an increase in the density of the hydrate by concentrating the hydrate along the filter means.

  8. Running fermi with one-stage compressor: advantages, layout, performance

    E-Print Network [OSTI]

    Cornacchia, M.; Craievich, P.; Di Mitri, S.; Penco, G.; Venturini, M.; Zholents, A.

    2008-01-01T23:59:59.000Z

    Running FERMI with one-stage compressor: advantages, layout,a lattice with one-stage compressor, it was thought at thetime that the two bunch compressors configuration was still

  9. SOFTWARE EVOLUTION AND THE STAGED MODEL OF THE SOFTWARE LIFECYCLE

    E-Print Network [OSTI]

    1 SOFTWARE EVOLUTION AND THE STAGED MODEL OF THE SOFTWARE LIFECYCLE K. H. Bennett Research............................................................................................................11 1.5 Iterative software development ...............................................................................................................19 1.10 The stages of the software lifecycle

  10. Residential Two-Stage Gas Furnaces - Do They Save Energy?

    E-Print Network [OSTI]

    Lekov, Alex; Franco, Victor; Lutz, James

    2006-01-01T23:59:59.000Z

    of two-stage furnaces with BPM motors provides electricityof two-stage furnaces with BPM motors provides electricityPSC) and brushless permanent magnet (BPM) 1 . PSC motors are

  11. Market Transformation: Fuel Cell Early Adoption (Presentation...

    Office of Environmental Management (EM)

    Transformation: Fuel Cell Early Adoption (Presentation) Market Transformation: Fuel Cell Early Adoption (Presentation) Presented at the DOE Fuel Cell Pre-Solicitation Workshop held...

  12. On Robust Optimization of Two-Stage Systems

    E-Print Network [OSTI]

    2001-02-20T23:59:59.000Z

    Feb 20, 2001 ... The objective is to minimize the cost of the first-stage decision and the ... stage model in which an investment is made at the beginning of the period and ..... Their second-stage decision—future production of power—is not fully ...

  13. Nitrogen oxides reduction by staged combustion of LCV gas

    E-Print Network [OSTI]

    Cabrera Sixto, Jose Manuel

    1990-01-01T23:59:59.000Z

    In the staged combustion of the LCV gas, hydrocarbons are oxidized during the Erst stage mto CO, COz, and HtO. A portion of thc CO and Hz gases contained in the LCV gas are converted to CO z and HzO, espctively, daring this Sist stage. The remaining CO and H z...

  14. FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION

    E-Print Network [OSTI]

    Salamon, Peter

    CHAPTER 1 FREE ENERGIES OF STAGING A SCENARIO AND PERPETUAL MOTION MACHINES OF THE THIRD KIND Peter to a notion of staging free energy: the free energy invested in choreographing all the actors of a biochemical \\offprintinfo{(Title, Edition)}{(Author)} at the beginning of your document. 1 #12;2 FREE ENERGIES OF STAGING

  15. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Abdalla H. Ali; John H. Anderson; Earl R. Berry; Charles H. Schrader; Lalit S. Shah

    2003-04-16T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which produces at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are TES (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. Each of the EECP subsystems were assessed for technical risks and barriers. A plan was identified to mitigate the identified risks (Phase II RD&T Plan, October 2000). The RD&T Plan identified petroleum coke characteristics as a potential technical risk. The composition of petroleum coke varies from one refinery to another. Petroleum coke characteristics are a function of the crude oil slate available at the refinery and the coker operating parameters. The specific petroleum coke characteristics at a refinery affect the design of the Gasification and Acid Gas Removal (AGR) subsystems. Knowing the petroleum coke composition provides the necessary data to proceed to the EECP Phase III engineering design of the gasification process. Based on ChevronTexaco's experience, the EECP team ranked the technical, economic, and overall risks of the petroleum coke composition related to the gasification subsystem as low. In Phase I of the EECP Project, the Motiva Port Arthur Refinery had been identified as the potential EECP site. As a result of the merger between Texaco and Chevron in October 2001, Texaco was required to sell its interest in the Motiva Enterprises LLC joint venture to Shell Oil Company and Saudi Refining Inc. To assess the possible impact of moving the proposed EECP host site to a ChevronTexaco refinery, samples of petroleum coke from two ChevronTexaco refineries were sent to MTC for bench-scale testing. The results of the analysis of these samples were compared to the Phase I EECP Gasification Design Basis developed for Motiva's Port Arthur Refinery. The analysis confirms that if the proposed EECP is moved to a new refinery site, the Phase I EECP Gasification Design Basis would have to be updated. The lower sulfur content of the two samples from the ChevronTexaco refineries indicates that if one of these sites were selected, the Sulfur Recovery Unit (SRU) might be sized smaller than the current EECP design. This would reduce the capital expense of the SRU. Additionally, both ChevronTexaco samples have a higher hydrogen to carbon monoxide ratio than the Motiva Port Arthur petroleum coke. The higher hydrogen to carbon monoxide ratio could give a slightly higher F-T products yield from the F-T Synthesis Reactor. However, the EECP Gasification Design Basis can not be updated until the site for the proposed EECP site is finalized. Until the site is finalized, the feedstock (petroleum coke) characteristics are a low risk to the EECP project.

  16. EARLY ENTRANCE COPRODUCTION PLANT

    SciTech Connect (OSTI)

    Fred D. Brent; Lalit Shah; Earl Berry; Charles H. Schrader; John Anderson; J. Erwin; Matthew G. Banks; Terry L. Ullman

    2004-01-12T23:59:59.000Z

    The overall objective of this project is the three phase development of an Early Entrance Coproduction Plant (EECP) which uses petroleum coke to produce at least one product from at least two of the following three categories: (1) electric power (or heat), (2) fuels, and (3) chemicals using ChevronTexaco's proprietary gasification technology. The objective of Phase I is to determine the feasibility and define the concept for the EECP located at a specific site; develop a Research, Development, and Testing (RD&T) Plan to mitigate technical risks and barriers; and prepare a Preliminary Project Financing Plan. The objective of Phase II is to implement the work as outlined in the Phase I RD&T Plan to enhance the development and commercial acceptance of coproduction technology. The objective of Phase III is to develop an engineering design package and a financing and testing plan for an EECP located at a specific site. The project's intended result is to provide the necessary technical, economic, and environmental information needed by industry to move the EECP forward to detailed design, construction, and operation. The partners in this project are Texaco Energy Systems LLC or TES (a subsidiary of ChevronTexaco), General Electric (GE), Praxair, and Kellogg Brown & Root (KBR) in addition to the U.S. Department of Energy (DOE). TES is providing gasification technology and Fischer-Tropsch (F-T) technology developed by Rentech, GE is providing combustion turbine technology, Praxair is providing air separation technology, and KBR is providing engineering. Each of the EECP subsystems was assessed for technical risks and barriers. A plan was developed to mitigate the identified risks (Phase II RD&T Plan, October 2000). Phase II RD&T Task 2.6 identified as potential technical risks to the EECP the fuel/engine performance and emissions of the F-T diesel fuel products. Hydrotreating the neat F-T diesel product reduces potentially reactive olefins, oxygenates, and acids levels and alleviates corrosion and fuel stability concerns. Future coproduction plants can maximize valuable transportation diesel by hydrocracking the F-T Synthesis wax product to diesel and naphtha. The upgraded neat F-T diesel, hydrotreater F-T diesel, and hydrocracker F-T diesel products would be final blending components in transportation diesel fuel. Phase II RD&T Task 2.6 successfully carried out fuel lubricity property testing, fuel response to lubricity additives, and hot-start transient emission tests on a neat F-T diesel product, a hydrocracker F-T diesel product, a blend of hydrotreater and hydrocracker F-T diesel products, and a Tier II California Air Resources Board (CARB)-like diesel reference fuel. Only the neat F-T diesel passed lubricity inspection without additive while the remaining three fuel candidates passed with conventional additive treatment. Hot-start transient emission tests were conducted on the four fuels in accordance with the U.S. Environmental Protection Agency (EPA) Federal Test Procedure (FTP) specified in Code of Federal Regulations, Title 40, Part 86, and Subpart N on a rebuilt 1991 Detroit Diesel Corporation Series 60 heavy-duty diesel engine. Neat F-T diesel fuel reduced oxides of nitrogen (NO{sub x}), total particulate (PM), hydrocarbons (HC), carbon monoxide (CO), and the Soluble Organic Fraction (SOF) by 4.5%, 31%, 50%, 29%, and 35%, respectively, compared to the Tier II CARB-like diesel. The hydrocracker F-T diesel product and a blend of hydrocracker and hydrotreater F-T diesel products also reduced NO{sub x}, PM, HC, CO and SOF by 13%, 16% to 17%, 38% to 63%, 17% to 21% and 21% to 39% compared to the Tier II CARB-like diesel. The fuel/engine performance and emissions of the three F-T diesel fuels exceed the performance of a Tier II CARB-like diesel. Phase II RD&T Task 2.6 successfully met the lubricity property testing and F-T diesel fuel hot-start transient emissions test objectives. The results of the testing help mitigate potential economic risks on obtaining a premium price for the F-T diesel fuel

  17. Early English Books on microfilm

    E-Print Network [OSTI]

    search term in one box, or two if you are combining or excluding terms. You can leave the Search Three. In the next search box, enter the words early english books. Leave the other defaults alone. Now access the catalog (libcat.wichita.edu), change the default to Advanced Search: Step Two. Place your

  18. Visualising Early Product Development Information

    E-Print Network [OSTI]

    Salustri, Filippo A.

    screws store energy Electricity Supply Screw User Force couple screw & PSD Installed Screw Waste Energy System Bit Bit Screw Screw Electricity Supply Waste Energy User Force Activation System User Input Architecture Systems Design Design Schematics for visualisation of early product information Light

  19. A Staged Muon Accelerator Facility For Neutrino and Collider Physics

    E-Print Network [OSTI]

    Delahaye, Jean-Pierre; Brice, Stephen; Bross, Alan David; Denisov, Dmitri; Eichten, Estia; Holmes, Stephen; Lipton, Ronald; Neuffer, David; Palmer, Mark Alan; Bogacz, S Alex; Huber, Patrick; Kaplan, Daniel M; Snopok, Pavel; Kirk, Harold G; Palmer, Robert B; Ryne, Robert D

    2015-01-01T23:59:59.000Z

    Muon-based facilities offer unique potential to provide capabilities at both the Intensity Frontier with Neutrino Factories and the Energy Frontier with Muon Colliders. They rely on a novel technology with challenging parameters, for which the feasibility is currently being evaluated by the Muon Accelerator Program (MAP). A realistic scenario for a complementary series of staged facilities with increasing complexity and significant physics potential at each stage has been developed. It takes advantage of and leverages the capabilities already planned for Fermilab, especially the strategy for long-term improvement of the accelerator complex being initiated with the Proton Improvement Plan (PIP-II) and the Long Baseline Neutrino Facility (LBNF). Each stage is designed to provide an R&D platform to validate the technologies required for subsequent stages. The rationale and sequence of the staging process and the critical issues to be addressed at each stage, are presented.

  20. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E.; Anderson, Brian L.; O'Brien, Kevin C.

    2011-11-01T23:59:59.000Z

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  1. Staged combustion with piston engine and turbine engine supercharger

    DOE Patents [OSTI]

    Fischer, Larry E. (Los Gatos, CA); Anderson, Brian L. (Lodi, CA); O'Brien, Kevin C. (San Ramon, CA)

    2006-05-09T23:59:59.000Z

    A combustion engine method and system provides increased fuel efficiency and reduces polluting exhaust emissions by burning fuel in a two-stage combustion system. Fuel is combusted in a piston engine in a first stage producing piston engine exhaust gases. Fuel contained in the piston engine exhaust gases is combusted in a second stage turbine engine. Turbine engine exhaust gases are used to supercharge the piston engine.

  2. Jefferson Lab technology, capabilities take center stage in constructi...

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

    semi for its road test. Jefferson Lab technology, capabilities take center stage in construction of portion of DOE's Spallation Neutron Source accelerator By James Schultz January...

  3. Necessary Optimality Conditions for two-stage Stochastic Programs ...

    E-Print Network [OSTI]

    2009-09-18T23:59:59.000Z

    Sep 18, 2009 ... In this paper we study the following two-stage stochastic program: ...... are important properties when one discusses the convergence of sam-.

  4. A Two Stage Stochastic Equilibrium Model for Electricity Markets ...

    E-Print Network [OSTI]

    Dali Zhang

    2008-02-06T23:59:59.000Z

    Feb 6, 2008 ... A Two Stage Stochastic Equilibrium Model for Electricity Markets with Two Way Contracts. Dali Zhang (zhangdl ***at*** soton.ac.uk) Huifu Xu ...

  5. Dermatology Grand Rounds "AJCC Melanoma Staging Update: Impact on Diagnostic

    E-Print Network [OSTI]

    Bar, Moshe

    Dermatology Grand Rounds "AJCC Melanoma Staging Update: Impact on Diagnostic Reporting in primary melanoma Explain the decision making process in offering sentinel lymph node mapping Date

  6. Running fermi with one-stage compressor: advantages, layout, performance

    E-Print Network [OSTI]

    Cornacchia, M.; Craievich, P.; Di Mitri, S.; Penco, G.; Venturini, M.; Zholents, A.

    2008-01-01T23:59:59.000Z

    Running FERMI with one-stage compressor: advantages, layout,re-examines the option of running the FERMI FEL driver with

  7. Exploring the Modeling Capacity of Two-stage Robust Optimization

    E-Print Network [OSTI]

    Yu An

    2013-06-13T23:59:59.000Z

    Jun 13, 2013 ... usf.edu). Abstract: To handle significant variability in loads, renewable energy generation, as well as various contingencies, two-stage robust ...

  8. Stage Presentation, Care Patterns, and Treatment Outcomes for Squamous Cell Carcinoma of the Penis

    SciTech Connect (OSTI)

    Burt, Lindsay M.; Shrieve, Dennis C.; Tward, Jonathan D., E-mail: Jonathan.Tward@hci.utah.edu

    2014-01-01T23:59:59.000Z

    Purpose: Penile squamous cell carcinoma (SCC) is a rare entity, with few published series on outcomes. We evaluated the stage distributions and outcomes for surgery and radiation therapy in a U.S. population database. Methods and Materials: Subjects with SCC of the penis were identified using the National Cancer Institute Surveillance, Epidemiology and End Results (SEER) Program database between 1988 and 2006. Descriptive statistics were performed, and cause-specific survival (CSS) was estimated using Kaplan-Meier analysis. Comparisons of treatment modalities were analyzed using multivariate Cox regression. Subjects were staged using American Joint Committee on Cancer, sixth edition, criteria. Results: There were 2458 subjects identified. The median age was 66.8 years (range, 17-102 years). Grade 2 disease was present in 94.5% of cases. T1, T2, T3, T4, and Tx disease was present in 64.8%, 17.1%, 9.5%, 2.1%, and 6.5% of cases, respectively. N0, N1, N2, N3, and Nx disease was noted in 61.6%, 6.9%, 4.0%, 3.7%, and 23.8% of cases, respectively. M1 disease was noted in 2.5% of subjects. Individuals of white ethnicity accounted for 85.1% of cases. Lymphadenectomy was performed in 16.7% of cases. The CSS for all patients at 5 and 10 years was 80.8% and 78.6%. By multivariable analysis grades 2 and 3 disease, T3 stage, and positive lymph nodes were adverse prognostic factors for CSS. Conclusion: SCC of the penis often presents as early-stage T1, N0, M0, grade 1, or grade 2 disease. The majority of patients identified were treated with surgery, and only a small fraction of patients received radiation therapy alone or as adjuvant therapy.

  9. Multipath Probabilistic Early Response TCP

    E-Print Network [OSTI]

    Singh, Ankit

    2012-10-19T23:59:59.000Z

    : Chair of Committee, A. L. Narasimha Reddy Committee Members, Riccardo Bettati Srinivas Shakottai Head of Department, Costas N. Georghiades August 2012 Major Subject: Computer Engineering iii ABSTRACT Multipath Probabilistic Early Response TCP.... (August 2012) Ankit Singh, B.Tech., Indian Institute of Technology, Guwahati Chair of Advisory Committee: Dr. A. L. Narasimha Reddy Many computers and devices such as smart phones, laptops and tablet devices are now equipped with multiple network...

  10. Early Exercise Option Valuation 00000001111111

    E-Print Network [OSTI]

    Oosterlee, Cornelis W. "Kees"

    Early Exercise Option Valuation 0 0 1 1 00000001111111 s T 0 0s K Mm+1m t 0 With V (tM , S(tM)) = E. Computational Finance (Summerschool) Hitotsubashi University August 2009 2 / 51 #12;The CONV method (Carr-Madan extended) The main premise of the CONV method is that f (y|x) depends on x and y via f (y|x) = f (y - x

  11. Staging Laser Plasma Accelerators for Increased Beam Energy

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Staging Laser Plasma Accelerators for Increased Beam Energy D. Panasenko, A. J. Shu, C. B., Berkeley, California 94720, USA Abstract. Staging laser plasma accelerators is an efficient way of mitigating laser pump depletion in laser driven accelerators and necessary for reaching high energies

  12. A TWO-STAGE ALGORITHM FOR ENHANCEMENT OF REVERBERANT SPEECH

    E-Print Network [OSTI]

    Wang, DeLiang "Leon"

    A TWO-STAGE ALGORITHM FOR ENHANCEMENT OF REVERBERANT SPEECH Mingyang Wu and DeLiang Wang Department, respectively. Based on this observation, we propose a two-stage algorithm that enhances reverberant speech from) and speaker recognition systems. Consequently, an effective reverberant speech enhancement system can be used

  13. Protein Folding Simulation by Two-Stage Optimization

    E-Print Network [OSTI]

    Will, Sebastian

    Protein Folding Simulation by Two-Stage Optimization A. Dayem Ullah1 , L. Kapsokalivas1 , M. Mann2 propose a two-stage optimization approach for protein folding simulation in the FCC lattice, inspired from procedure based on simulated annealing alone. 1 Introduction The question of how proteins fold and whether

  14. FACULTY EARLY RETIREMENT PROGRAM Request Form

    E-Print Network [OSTI]

    de Lijser, Peter

    FACULTY EARLY RETIREMENT PROGRAM Request Form INSTRUCTIONS: This form is to be used by faculty to request participation in the Faculty Early Retirement Program (FERP) or to request a change in FERP status

  15. Combined fuel and air staged power generation system

    SciTech Connect (OSTI)

    Rabovitser, Iosif K; Pratapas, John M; Boulanov, Dmitri

    2014-05-27T23:59:59.000Z

    A method and apparatus for generation of electric power employing fuel and air staging in which a first stage gas turbine and a second stage partial oxidation gas turbine power operated in parallel. A first portion of fuel and oxidant are provided to the first stage gas turbine which generates a first portion of electric power and a hot oxidant. A second portion of fuel and oxidant are provided to the second stage partial oxidation gas turbine which generates a second portion of electric power and a hot syngas. The hot oxidant and the hot syngas are provided to a bottoming cycle employing a fuel-fired boiler by which a third portion of electric power is generated.

  16. Recommendation 177: Facilitating Early Public Input

    Broader source: Energy.gov [DOE]

    DOE should initiate consultation meetings with stake holders immediately to allow early public input into the planning for IFDP

  17. The mucosal/epithelial barrier disruption and transport of pancreatic digestive enzymes in early stages of intestinal ischemia

    E-Print Network [OSTI]

    Chang, Marisol

    2012-01-01T23:59:59.000Z

    calculated after non-linear regression (B). B Figure 4.2of TA calculated after non-linear regression. A B Figure 2.5of TA calculated after non-linear regression. A B Figure 2.6

  18. Prognosis of Component Degradation Under Uncertainty: A Method for Early Stage Design of a Complex Engineering System

    E-Print Network [OSTI]

    Yu, Bo Yang

    This paper proposes a method that dynamically improves a statistical model of system degradation by incorporating uncertainty. The method is illustrated by a case example of fouling, or degradation, in a heat exchanger in ...

  19. Evaluating low oxygen and pH variation and its effects on invertebrate early life stages on upwelling margins /

    E-Print Network [OSTI]

    Frieder, Christina A.

    2013-01-01T23:59:59.000Z

    CO 32- ] since uranium in seawater complexes with carbonateU incorporation among taxa Uranium in seawater occurs in aCharacterization of uranium(VI) in seawater. Limnology and

  20. Assessing decision inputs in drug development between small, early stage companies and big pharma : is there is a difference?

    E-Print Network [OSTI]

    Rippy, Daniel S. (Daniel Spensley)

    2007-01-01T23:59:59.000Z

    The pipeline productivity challenge facing large, publicly traded pharmaceutical companies, collectively referred to as "Big Pharma," is well known. The unprecedented success Big Pharma achieved over the past few decades ...

  1. A review of "Staging Women and the Soul-Body Dynamic in Early Modern England" by Sarah E. Johnson 

    E-Print Network [OSTI]

    Malay, Jessica L.

    2015-01-01T23:59:59.000Z

    with the will positioned as “one of the soul’s highest functions” (75). Fletcher’s portrayal of Maria as steeped in the practice of rhetoric is presented as a means through which women could pierce through male deception using rhetoric as a weapon of the will in order... to resist attempts to define her as body only, as Petruccio attempts to do with his new bride Maria. Johnson suggests that this play registers “an awareness that the hierarchical and gendered division between soul and body” is a “rhetorical construct...

  2. A review of "Staging Women and the Soul-Body Dynamic in Early Modern England" by Sarah E. Johnson

    E-Print Network [OSTI]

    Malay, Jessica L.

    2015-01-01T23:59:59.000Z

    with the will positioned as “one of the soul’s highest functions” (75). Fletcher’s portrayal of Maria as steeped in the practice of rhetoric is presented as a means through which women could pierce through male deception using rhetoric as a weapon of the will in order... to resist attempts to define her as body only, as Petruccio attempts to do with his new bride Maria. Johnson suggests that this play registers “an awareness that the hierarchical and gendered division between soul and body” is a “rhetorical construct...

  3. Genome-wide Transcriptome Analysis of Laminar Tissue During the Early Stages of Experimentally Induced Equine Laminitis 

    E-Print Network [OSTI]

    Wang, Jixin

    2012-02-14T23:59:59.000Z

    -Homer and Dr. Rebecca Carter at the Laminitis Institute at the University of Pennsylvania, Dr. Christopher C. Pollitt, Dr. Andrew Van Eps and Ms. Melody De Laat at the Australian Equine Laminitis Research Unit, University of Queensland and Dr. James Belknap...-specific DNA Binding Protein 2 ix DDF Deep Digital Flexor DE Differentially Expressed DEFB4 Defensin, Beta 4 DMSO Dimethylsufoxide ECD Equine Cushing?s Disease ECEL1 Endothelin Converting Enzyme-like 1 ECM Extracellular Matrix EEF1A1 Eukaryotic...

  4. Evaluating low oxygen and pH variation and its effects on invertebrate early life stages on upwelling margins /

    E-Print Network [OSTI]

    Frieder, Christina A.

    2013-01-01T23:59:59.000Z

    with lengths of the BRL, PRL and ARL at the beginning of thepostoral rod length (PRL), anterolateral rod length (ARL),a, e) BRL, (b, f) ARL, (c, g) PRL and (d, h) the sum of BRL,

  5. Genome-wide Transcriptome Analysis of Laminar Tissue During the Early Stages of Experimentally Induced Equine Laminitis

    E-Print Network [OSTI]

    Wang, Jixin

    2012-02-14T23:59:59.000Z

    Obstruction REEP3 Receptor Accessory Protein 3 xiii RNF144B Ring Finger 144B ROS Reactive Oxygen Species RPLP0 Large Ribosomal Protein P0 RPL32 Ribosomal Protein L32 RR Respiration Rate RSPH3 Radial Spoke Head 3 Homolog RXR Retinoid Receptor SAA1... .......................................................................................................... 210 APPENDIX ............................................................................................................... 250...

  6. Evaluating low oxygen and pH variation and its effects on invertebrate early life stages on upwelling margins /

    E-Print Network [OSTI]

    Frieder, Christina A.

    2013-01-01T23:59:59.000Z

    was taken with the use of Honeywell Durafet III pH sensorsdesignated by the user and a Honeywell Durafet III pH sensoran Aanderaa optode and Honeywell Durafet III pH sensor that

  7. Int. J. Global Warming, Vol. 1, No. 4, 2009 473 Statistical evaluation of the early-stage

    E-Print Network [OSTI]

    Maryland at College Park, University of

    studies on biofuel potentials in Latin America and their potential for greenhouse gas mitigation. She Professor of Physics and Renewable Energy Technologies at Instituto TecnolĂłgico y de Estudios Superiores de

  8. Monitoring and Early Warning for Internet Worms

    E-Print Network [OSTI]

    Xu, Shouhuai

    an effective early warning system. Based on epidemic models and observation data of a fast-spreading worm, we a worm monitoring and early warning system. In addition, by collecting more complete data on the worm1 Monitoring and Early Warning for Internet Worms Cliff C. Zou, Lixin Gao, Weibo Gong, Don Towsley

  9. Monitoring and Early Warning for Internet Worms

    E-Print Network [OSTI]

    Shenoy, Prashant

    monitoring and early warning system. In this paper, we propose effective algorithms for early detectionMonitoring and Early Warning for Internet Worms Cliff Changchun Zou, Lixin Gao, Weibo Gong, Don warning system. In order to detect an unknown (zero-day) worm, a straight- forward way is to use various

  10. Monitoring and Early Warning for Internet Worms

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    of these worms calls for a worm monitoring and early warning system. In this paper we propose the effective algorithms for early warning of the presence of a worm and the correspondent monitoring system. Based1 Monitoring and Early Warning for Internet Worms Cliff C. Zou, Lixin Gao, Weibo Gong, Don Towsley

  11. Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS

    E-Print Network [OSTI]

    Pilawa-Podgurski, Robert C. N.

    In this paper, we introduce a merged two-stage dc-dc power converter for low-voltage power delivery. By separating the transformation and regulation function of a dc-dc power converter into two stages, both large voltage ...

  12. Influence of magnetic field strength on potential well in the ionization stage of a double stage Hall thruster

    SciTech Connect (OSTI)

    Yu Daren; Song Maojiang; Liu Hui; Zhang Xu; Li Hong [Lab of Plasma Propulsion, Mail Box 458, Harbin Institute of Technology, Harbin 150001 (China)

    2012-07-15T23:59:59.000Z

    Similar to a single stage Hall thruster, the magnetic field, which controls electron trajectory and electric field distribution, is the most important factor determining the performance of a double stage Hall thruster. Especially, a potential well, which is helpful to reduce the ion loss on the thruster walls, is shaped in the ionization stage due to the existence of an annular magnetic field topology there. In this paper, the influence of magnetic field strength in the ionization stage on the potential well is researched with both experiments and particle-in-cell simulations. It is found that the depth of potential well increases with the magnetic field strength as a result of enhanced magnetic confinement and lowered electron conductivity. Consequently, the plasma density as well as the ion current entering the acceleration stage increases. However, an excessive magnetic field strength leads to an excess of ion loss on the walls of the acceleration stage. Therefore, there is an appropriate magnetic field strength in the ionization stage that results in a proper potential well and consequently an optimal performance of a double stage Hall thruster.

  13. Early detection of contagious diseases

    DOE Patents [OSTI]

    Colston, Jr., Billy W. (San Ramon, CA); Milanovich, Fred P. (Lafayette, CA); Estacio, Pedro (Mission San Jose, CA); Chang, John (Walnut Creek, CA)

    2011-08-09T23:59:59.000Z

    This invention provides an electronic proximity apparatus and a surveillance method using such an apparatus for alerting individuals that are exposed to a contagious disease. When a person becomes symptomatic and is diagnosed as positive for a given contagious agent, individuals that have recently maintained a threshold proximity with respect to an infected individual are notified and advised to seek immediate medial care. Treatment of individuals in the very early phases of infection (pre-symptomatic) significantly reduces contagiousness of the infected population first exposed to the contagious disease, thus preventing spread of the disease throughout the general population.

  14. Miller wins Early Career Award

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighandSWPA / SPRA / USACE625Data ShowCDevelopment ofMiller wins Early

  15. CASL OLCF Early Science Award

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced. C o w l i t z C o . C l a r k C o . CL2 MilestoneOLCF Early

  16. Fixing famine : the politics of information in famine early warning

    E-Print Network [OSTI]

    Burg, Suzanne M. M.

    2008-01-01T23:59:59.000Z

    and Preparedness Commission Early Warning System. (1998).Ethiopia Early Warning System May/June monthly report. AddisPreparedness Commission Early Warning System. (2004, March).

  17. Hickam Air Force Base Fuel Cell Vehicles: Early Implementation...

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

    Hickam Air Force Base Fuel Cell Vehicles: Early Implementation Experience Hickam Air Force Base Fuel Cell Vehicles: Early Implementation Experience This report sumarizes early...

  18. Resilient data staging through MxN distributed transactions.

    SciTech Connect (OSTI)

    Schwan, Karsten (Georgia Institute of Technology, Atlanta, GA); Oldfield, Ron A.; Lofstead, Gerald Fredrick, II; Dayal, Jai (Georgia Institute of Technology, Atlanta, GA)

    2011-11-01T23:59:59.000Z

    Scientific computing-driven discoveries are frequently driven from workflows that use persistent storage as a staging area for data between operations. With the bad and progressively worse bandwidth vs. data size issues as we continue towards exascale, eliminating persistent storage through techniques like data staging will both enable these workflows to continue online, but also enable more interactive workflows reducing the time to scientific discoveries. Data staging has shown to be an effective way for applications running on high-end computing platforms to offload expensive I/O operations and to manage the tremendous amounts of data they produce. This data staging approach, however, lacks the ACID style guarantees traditional straight-to-disk methods provide. Distributed transactions are a proven way to add ACID properties to data movements, however distributed transactions follow 1xN data movement semantics, where our highly parallel HPC environments employ MxN data movement semantics. In this paper we present a novel protocol that extends distributed transaction terminology to include MxN semantics which allows our data staging areas to benefit from ACID properties. We show that with our protocol we can provide resilient data staging with a limited performance penalty over current data staging implementations.

  19. Bryan Mound SPR cavern 113 remedial leach stage 1 analysis.

    SciTech Connect (OSTI)

    Rudeen, David Keith [GRAM, Inc., Albuquerque, NM; Weber, Paula D.; Lord, David L.

    2013-08-01T23:59:59.000Z

    The U.S. Strategic Petroleum Reserve implemented the first stage of a leach plan in 2011-2012 to expand storage volume in the existing Bryan Mound 113 cavern from a starting volume of 7.4 million barrels (MMB) to its design volume of 11.2 MMB. The first stage was terminated several months earlier than expected in August, 2012, as the upper section of the leach zone expanded outward more quickly than design. The oil-brine interface was then re-positioned with the intent to resume leaching in the second stage configuration. This report evaluates the as-built configuration of the cavern at the end of the first stage, and recommends changes to the second stage plan in order to accommodate for the variance between the first stage plan and the as-built cavern. SANSMIC leach code simulations are presented and compared with sonar surveys in order to aid in the analysis and offer projections of likely outcomes from the revised plan for the second stage leach.

  20. A HIGH REPETITION PLASMA MIRROR FOR STAGED ELECTRON ACCELERATION

    SciTech Connect (OSTI)

    Sokollik, Thomas; Shiraishi, Satomi; Osterhoff, Jens; Evans, Eugene; Gonsalves, Anthony; Nakamura, Kei; vanTilborg, Jeroen; Lin, Chen; Toth, Csaba; Leemans, Wim

    2011-07-22T23:59:59.000Z

    In order to build a compact, staged laser plasma accelerator the in-coupling of the laser beam to the different stages represents one of the key issues. To limit the spatial foot print and thus to realize a high overall acceleration gradient, a concept has to be found which realizes this in-coupling within a few centimeters. We present experiments on a tape-drive based plasma mirror which could be used to reflect the focused laser beam into the acceleration stage.

  1. Some effects of selenium on the growth and survival of larval stages of the american oyster, Crassostrea virginica 

    E-Print Network [OSTI]

    Smith, Wendy S

    1979-01-01T23:59:59.000Z

    State University Chairman of Advisory Committee: Dr. J . M. Neff Acute Oioa say on early life stages of C assostre ~vi i ica indicate that selenium was toxic at all concentrations tested. Toxic effects are most significant at 10 ppm, particularly...) of the experiment. Some toxicity however, was apparent. In continuous exposures, selenium proved to be highly toxic, with effects compounded over time. Survival in 10 ppm was less than 1! after 48 hours and decreased to . 14K after 72 hours. In all...

  2. advanced stage neuroblastoma: Topics by E-print Network

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

    - DSpace Summary: This thesis focuses on the design of a public theatre for the entire city of Boston, a "city stage." The intention is to explore through design the boundaries...

  3. advanced unresectable stage: Topics by E-print Network

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

    This thesis focuses on the design of a public theatre for the entire city of Boston, a "city stage." The intention is to explore through design the boundaries of an architectural...

  4. accelerator laboratory stages: Topics by E-print Network

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

    the nucleation is composed of two distinct phases, a quasi-static and an acceleration stage, followed by dynamic Nicolas, Chamot-Rooke 80 Optimizing Memory-Bound SYMV Kernel on...

  5. The roles of finance at different growth stages of startups

    E-Print Network [OSTI]

    Fu, Yue, S.M. Massachusetts Institute of Technology

    2014-01-01T23:59:59.000Z

    The purpose of this qualitative case study is to develop a framework that summarizes the finance-related problems faced by entrepreneurs at different development stages of their startups, as well as the possible solutions ...

  6. Impact of geometric variability on compressor repeating-stage performance

    E-Print Network [OSTI]

    Vincent, Antoine, 1979-

    2003-01-01T23:59:59.000Z

    The impact of geometric variability on compressor performance is investigated using a compressor repeating-stage model based on well-known correlations for profile losses, endwall blockage, deviation, and the onset of ...

  7. EA-0688: Hazardous Waste Staging Facility, Pantex Plant, Amarillo, Texas

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to construct the Hazardous Waste Staging Facility that would help to alleviate capacity problems as well as provide a single compliant...

  8. Extensible microprocessor without interlocked pipeline stages (emips), the reconfigurable microprocessor

    E-Print Network [OSTI]

    Pittman, Richard Neil

    2007-09-17T23:59:59.000Z

    have called our dynamically extensible microprocessor design the Extensible Microprocessor without Interlocked Pipeline Stages, or eMIPS. The eMIPS architecture uses the interaction of fixed and configurable logic available in modern...

  9. Residential Two-Stage Gas Furnaces - Do They Save Energy?

    E-Print Network [OSTI]

    Lekov, Alex; Franco, Victor; Lutz, James

    2006-01-01T23:59:59.000Z

    cycles the burners between a reduced heat input rate and offor between the maximum heat input rate and off. Two-stageReduced Mode Fuel Input Rate Heat from Fuel Burner Operating

  10. Catalytic two-stage coal hydrogenation and hydroconversion process

    DOE Patents [OSTI]

    MacArthur, James B. (Denville, NJ); McLean, Joseph B. (So. Somerville, NJ); Comolli, Alfred G. (Yardley, PA)

    1989-01-01T23:59:59.000Z

    A process for two-stage catalytic hydrogenation and liquefaction of coal to produce increased yields of low-boiling hydrocarbon liquid and gas products. In the process, the particulate coal is slurried with a process-derived liquid solvent and fed at temperature below about 650.degree. F. into a first stage catalytic reaction zone operated at conditions which promote controlled rate liquefaction of the coal, while simultaneously hydrogenating the hydrocarbon recycle oils at conditions favoring hydrogenation reactions. The first stage reactor is maintained at 650.degree.-800.degree. F. temperature, 1000-4000 psig hydrogen partial pressure, and 10-60 lb coal/hr/ft.sup.3 reactor space velocity. The partially hydrogenated material from the first stage reaction zone is passed directly to the close-coupled second stage catalytic reaction zone maintained at a temperature at least about 25.degree. F. higher than for the first stage reactor and within a range of 750.degree.-875.degree. F. temperature for further hydrogenation and thermal hydroconversion reactions. By this process, the coal feed is successively catalytically hydrogenated and hydroconverted at selected conditions, which results in significantly increased yields of desirable low-boiling hydrocarbon liquid products and minimal production of undesirable residuum and unconverted coal and hydrocarbon gases, with use of less energy to obtain the low molecular weight products, while catalyst life is substantially increased.

  11. EARLY EVOLUTION OF PRESTELLAR CORES

    SciTech Connect (OSTI)

    Horedt, G. P., E-mail: g.horedt@online.de [Kronwinkler 50, D-81245, Munich (Germany)

    2013-08-20T23:59:59.000Z

    Prestellar cores are approximated by singular polytropic spheres. Their early evolution is studied analytically with a Bondi-like scheme. The considered approximation is meaningful for polytropic exponents {gamma} between 0 and 6/5, implying radial power-law density profiles between r {sup -1} and r {sup -2.5}. Gravitationally unstable Jeans and Bonnor-Ebert masses differ at most by a factor of 3.25. Tidally stable prestellar cores must have a mean density contrast {approx}> 8 with respect to the external parent cloud medium. The mass-accretion rate relates to the cube of equivalent sound speed, as in Shu's seminal paper. The prestellar masses accreted over 10{sup 5} years cover the whole stellar mass spectrum; they are derived in simple closed form, depending only on the polytropic equation of state. The stellar masses that can be formed via strict conservation of angular momentum are at most of the order of a brown dwarf.

  12. Early dynamics of transversally thermalized matter

    E-Print Network [OSTI]

    A. Bialas; M. Chojnacki; W. Florkowski

    2008-04-28T23:59:59.000Z

    We argue that the idea that the parton system created in relativistic heavy-ion collisions is formed in a state with transverse momenta close to thermodynamic equilibrium and its subsequent dynamics at early times is dominated by pure transverse hydrodynamics of the perfect fluid is compatible with the data collected at RHIC. This scenario of early parton dynamics may help to solve the problem of early equilibration.

  13. Staged fluidized-bed combustion and filter system

    DOE Patents [OSTI]

    Mei, Joseph S. (Morgantown, WV); Halow, John S. (Waynesburg, PA)

    1994-01-01T23:59:59.000Z

    A staged fluidized-bed combustion and filter system for substantially reducing the quantity of waste through the complete combustion into ash-type solids and gaseous products. The device has two fluidized-bed portions, the first primarily as a combustor/pyrolyzer bed, and the second as a combustor/filter bed. The two portions each have internal baffles to define stages so that material moving therein as fluidized beds travel in an extended route through those stages. Fluidization and movement is achieved by the introduction of gases into each stage through a directional nozzle. Gases produced in the combustor/pyrolyzer bed are permitted to travel into corresponding stages of the combustor/filter bed through screen filters that permit gas flow but inhibit solids flow. Any catalyst used in the combustor/filter bed is recycled. The two beds share a common wall to minimize total volume of the system. A slightly modified embodiment can be used for hot gas desulfurization and sorbent regeneration. Either side-by-side rectangular beds or concentric beds can be used. The system is particularly suited to the processing of radioactive and chemically hazardous waste.

  14. Multi-stage combustion using nitrogen-enriched air

    DOE Patents [OSTI]

    Fischer, Larry E.; Anderson, Brian L.

    2004-09-14T23:59:59.000Z

    Multi-stage combustion technology combined with nitrogen-enriched air technology for controlling the combustion temperature and products to extend the maintenance and lifetime cycles of materials in contact with combustion products and to reduce pollutants while maintaining relatively high combustion and thermal cycle efficiencies. The first stage of combustion operates fuel rich where most of the heat of combustion is released by burning it with nitrogen-enriched air. Part of the energy in the combustion gases is used to perform work or to provide heat. The cooled combustion gases are reheated by additional stages of combustion until the last stage is at or near stoichiometric conditions. Additional energy is extracted from each stage to result in relatively high thermal cycle efficiency. The air is enriched with nitrogen using air separation technologies such as diffusion, permeable membrane, absorption, and cryogenics. The combustion method is applicable to many types of combustion equipment, including: boilers, burners, turbines, internal combustion engines, and many types of fuel including hydrogen and carbon-based fuels including methane and coal.

  15. Method for encapsulating hazardous wastes using a staged mold

    DOE Patents [OSTI]

    Unger, Samuel L. (Los Angeles, CA); Telles, Rodney W. (Alhambra, CA); Lubowitz, Hyman R. (Rolling Hills Estates, CA)

    1989-01-01T23:59:59.000Z

    A staged mold and method for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides. In the third stage, the mold with the jacketed agglomerate is inverted, the first mold base is removed exposing the former bottom of the agglomerate, powdered thermoplastic is poured over the former bottom, the first mold base is replaced to compress the thermoplastic, heat is applied to melt the new thermoplastic and the top part of the jacket on the sides, the plastic is cooled jacketing the bottom and fusing with the jacketing on the sides to complete the seamless encapsulation of the agglomerate.

  16. Experiments and Modeling of Two-Stage Combustion in Low-Emissions...

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

    Experiments and Modeling of Two-Stage Combustion in Low-Emissions Diesel Engines Experiments and Modeling of Two-Stage Combustion in Low-Emissions Diesel Engines Two-stage...

  17. Ultra-Low-Power Adder Stage Design for Exascale Floating Point Units

    E-Print Network [OSTI]

    Del Barrio, AA; Bagherzadeh, N; Hermida, R

    2014-01-01T23:59:59.000Z

    date: March 2014. Ultra-Low-Power Adder Stage Design fordate: March 2014. Ultra-Low-Power Adder Stage Design fordate: March 2014. Ultra-Low-Power Adder Stage Design for

  18. Earth: The Early Years We discuss ...

    E-Print Network [OSTI]

    Earth: The Early Years We discuss ... · What happened to the Earth during the first few billion)? · What is the relationship to (early) life? #12;Age of Earth James Ussher (17th C) biblical account: 6: 20-40 m.y. (million years!) Charles Darwin evolution >300 m.y. Lord Kelvin (1880's) cooling Earth: 50

  19. 3, 221247, 2007 Modelling the Early

    E-Print Network [OSTI]

    Boyer, Edmond

    CPD 3, 221­247, 2007 Modelling the Early Weichselian Eurasian Ice Sheets V. Peyaud et al. Title of the Past Modelling the Early Weichselian Eurasian Ice Sheets: role of ice shelves and influence of ice Weichselian Eurasian Ice Sheets V. Peyaud et al. Title Page Abstract Introduction Conclusions References

  20. Cooperation Enablement for Centralistic Early Warning Systems

    E-Print Network [OSTI]

    Flegel, Ulrich

    Cooperation Enablement for Centralistic Early Warning Systems Ulrich Flegel SAP Research CEC that is considered here is the centralistic malware early warning system developed in the AMSEL project [3 Karlsruhe Vincenz-Prießnitz-Str. 1 76131 Karlsruhe, Germany ulrich.flegel@sap.com Johannes Hoffmann TU

  1. Ultra high vacuum heating and rotating specimen stage

    DOE Patents [OSTI]

    Coombs, A.W. III

    1995-05-02T23:59:59.000Z

    A heating and rotating specimen stage provides for simultaneous specimen heating and rotating. The stage is ideally suited for operation in ultrahigh vacuum (1{times}10{sup {minus}9} torr or less), but is useful at atmosphere and in pressurized systems as well. A specimen is placed on a specimen holder that is attached to a heater that, in turn, is attached to a top housing. The top housing is rotated relative to a bottom housing and electrically connected thereto by electrically conductive brushes. This stage is made of materials that are compatible with UHV, able to withstand high temperatures, possess low outgassing rates, are gall and seize resistant, and are able to carry substantial electrical loading without overheating. 5 figs.

  2. Ultra high vacuum heating and rotating specimen stage

    DOE Patents [OSTI]

    Coombs, III, Arthur W. (Patterson, CA)

    1995-01-01T23:59:59.000Z

    A heating and rotating specimen stage provides for simultaneous specimen heating and rotating. The stage is ideally suited for operation in ultrahigh vacuum (1.times.10.sup.-9 torr or less), but is useful at atmosphere and in pressurized systems as well. A specimen is placed on a specimen holder that is attached to a heater that, in turn, is attached to a top housing. The top housing is rotated relative to a bottom housing and electrically connected thereto by electrically conductive brushes. This stage is made of materials that are compatible with UHV, able to withstand high temperatures, possess low outgassing rates, are gall and seize resistant, and are able to carry substantial electrical loading without overheating.

  3. Enhancing Staging Capabilities at the Device Assembly Facility

    SciTech Connect (OSTI)

    Kanning, R. A.; Long, R. G.; Garcia, B. O.; Williams, V. D.

    2013-06-08T23:59:59.000Z

    The radioactive material limits allowed by the Documented Safety Analysis (DSA) at the Nevada National Security Site (NNSS) Device Assembly Facility (DAF) can support larger quantities than the floor space will accommodate. In order to maximize the full staging bunker capability, National Security Technologies, LLC, (NSTec) is developing a plan to take advantage of these high inventory limits and evaluate staging options such as shelves, racks, and mezzanines. This plan will investigate cost and evaluate U.S. Department of Energy (DOE) complex-wide alternatives used at other sites (Highly Enriched Uranium Manufacturing Facility, Pantex, Los Alamos National Laboratory, Sandia National Laboratories, etc.) that addressed similar situations.

  4. Experiments and Modeling of Two-Stage Combustion in Low-Emissions...

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

    DEER, August 4, 2008 Experiments and Modeling of Two Experiments and Modeling of Two - - Stage Combustion in Stage Combustion in Low Low - - Emissions Diesel Engines Emissions...

  5. A Systematic Analysis of Epigenetic Genes across Different Stages of Lung Adenocarcinoma Akshay Desai1

    E-Print Network [OSTI]

    Zhou, Yaoqi

    A Systematic Analysis of Epigenetic Genes across Different Stages of Lung Adenocarcinoma Akshay across different stages of lung adenocarcinoma (LUAD). Method: An integrative system biology approach

  6. Two-stage coal gasification and desulfurization apparatus

    DOE Patents [OSTI]

    Bissett, Larry A. (Morgantown, WV); Strickland, Larry D. (Morgantown, WV)

    1991-01-01T23:59:59.000Z

    The present invention is directed to a system which effectively integrates a two-stage, fixed-bed coal gasification arrangement with hot fuel gas desulfurization of a first stream of fuel gas from a lower stage of the two-stage gasifier and the removal of sulfur from the sulfur sorbent regeneration gas utilized in the fuel-gas desulfurization process by burning a second stream of fuel gas from the upper stage of the gasifier in a combustion device in the presence of calcium-containing material. The second stream of fuel gas is taken from above the fixed bed in the coal gasifier and is laden with ammonia, tar and sulfur values. This second stream of fuel gas is burned in the presence of excess air to provide heat energy sufficient to effect a calcium-sulfur compound forming reaction between the calcium-containing material and sulfur values carried by the regeneration gas and the second stream of fuel gas. Any ammonia values present in the fuel gas are decomposed during the combustion of the fuel gas in the combustion chamber. The substantially sulfur-free products of combustion may then be combined with the desulfurized fuel gas for providing a combustible fluid utilized for driving a prime mover.

  7. Staging and storage facility feasibility study. Final report

    SciTech Connect (OSTI)

    Swenson, C.E. [Westinghouse Hanford Co., Richland, WA (United States)

    1995-02-01T23:59:59.000Z

    This study was performed to investigate the feasibility of adapting the design of the HWVP Canister Storage Building (CSB) to meet the needs of the WHC Spent Nuclear Fuel Project for Staging and Storage Facility (SSF), and to develop Rough Order of Magnitude (ROM) cost and schedule estimates.

  8. Commitment Under Uncertainty: Two-Stage Stochastic Matching Problems

    E-Print Network [OSTI]

    Mathieu, Claire

    on classical combinatorial optimization problems [23]: set cover, minimum spanning tree, Steiner tree, maximum structures, with the notable exception of Gupta and P´al's work on stochastic Steiner Tree [9]. SecondCommitment Under Uncertainty: Two-Stage Stochastic Matching Problems Irit Katriel , Claire Kenyon

  9. On Two-Stage Stochastic Minimum Spanning Kedar Dhamdhere1

    E-Print Network [OSTI]

    Ravi, R.

    On Two-Stage Stochastic Minimum Spanning Trees Kedar Dhamdhere1 , R. Ravi2 , and Mohit Singh2 1}@andrew.cmu.edu Abstract. We consider the undirected minimum spanning tree problem in a stochastic optimization setting algorithm. We then consider the Stochastic minimum spanning tree problem in a more general black-box model

  10. International Internship Program "UniCredit Stage Abroad Exchange Programme"

    E-Print Network [OSTI]

    Robbiano, Lorenzo

    International Internship Program "UniCredit Stage ­ Abroad Exchange Programme" Application details scholarships to fund intra-curricular internships are offered to top students of higher education in the Uni environment with challenging tasks Pre-defined scope and plan of the internship (activities, goal

  11. Vacuum compatible, high-speed, 2-D mirror tilt stage

    DOE Patents [OSTI]

    Denham; Paul E. (Crockett, CA)

    2007-09-25T23:59:59.000Z

    A compact and vacuum compatible magnetic-coil driven tiltable stage that is equipped with a high efficiency reflective coating can be employed as a scanner in EUV applications. The drive electronics for the scanner is fully in situ programmable and rapidly switchable.

  12. SCIENCE ON STAGE TOWARDS A REJUVENATED SCIENCE TEACHING

    E-Print Network [OSTI]

    Madsen, Claus

    SCIENCE ON STAGE ­ TOWARDS A REJUVENATED SCIENCE TEACHING IN EUROPE Claus Madsen ESO, Karl as every-day experience of many science teachers sug- gest a `disconnect' between the tenants of traditional, formal science teaching and contemporary youth culture. Clearly formal science teaching fails

  13. Aerodynamic performance measurements of a film-cooled turbine stage

    E-Print Network [OSTI]

    Keogh, Rory (Rory Colm), 1968-

    2001-01-01T23:59:59.000Z

    The goal of this research is to measure the aerodynamic performance of a film-cooled turbine stage and to quantify the loss caused by film-cooling. A secondary goal of the research is to provide a detailed breakdown of the ...

  14. Staged Hybrid Genetic Search for Seismic Data Imaging

    E-Print Network [OSTI]

    Whitley, Darrell

    Christof Stork yy and Tony Kusuma yy Abstract --- Seismic data interpretation problems are typ­ icallyStaged Hybrid Genetic Search for Seismic Data Imaging Keith E. Mathias, y L. Darrell Whitley, y. Geological exploration em­ ploys seismic reflection surveys to obtain subsurface im­ ages of geologic beds

  15. Investigating Tropical Deforestation Using Two-Stage Spatially Misaligned

    E-Print Network [OSTI]

    Silander Jr., John A.

    Investigating Tropical Deforestation Using Two-Stage Spatially Misaligned Regression Models Deepak Deforestation in the tropics has been a major concern in conservationscience for more than 20 years. Estimates of tropical deforestation over the past few decades have shown an alarming accelerationin forest lost. Concern

  16. Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications

    E-Print Network [OSTI]

    V. N. Gamezo; A. M. Khokhlov; E. S. Oran; A. Y. Chtchelkanova; R. O. Rosenberg

    2003-01-01T23:59:59.000Z

    Large-scale three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a highly convoluted turbulent flame in a gravitational field of an expanding carbon-oxygen white dwarf. The flame dynamics is dominated by the

  17. Groundwater Data Analysis M.Tech Thesis Stage I Report

    E-Print Network [OSTI]

    Sohoni, Milind

    Groundwater Data Analysis M.Tech Thesis Stage I Report Submitted in partial fulfillment Institute of Technology Bombay October 2011 #12;Abstract In this project work we did groundwater data(GSDA), Pune. We have analyzed groundwater data of 120 observation wells over the period of 35 years

  18. Compression of redundancy free trellis stages in Turbo-Decoder

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Compression of redundancy free trellis stages in Turbo-Decoder E. Boutillon, J. Sánchez-Rojas and C. Marchand For turbo code with coding rate close to one, the high puncturing rate induces long sequences. The computation is reduced accordingly. Introduction: Turbo codes with coding rate close to one are specified

  19. Alternative Heat Recovery Options for Single-Stage Spray Dryers

    E-Print Network [OSTI]

    Wagner, J. R.

    1984-01-01T23:59:59.000Z

    Many powdered products are dried to their final moisture content by use of spray dryers. A basic spray dryer mixes an aqueous feedstock with heated air, vaporizing the water in the feedstock and producing the final dried powder in a single stage...

  20. Outcomes and Effect of Radiotherapy in Patients With Stage I or II Diffuse Large B-Cell Lymphoma: A Surveillance, Epidemiology, and End Results Analysis

    SciTech Connect (OSTI)

    Ballonoff, Ari [Department of Radiation Oncology, University of Colorado Health Sciences Center, Aurora, CO (United States)], E-mail: ari.ballonoff@uchsc.edu; Rusthoven, Kyle E.; Schwer, Amanda; McCammon, Robert; Kavanagh, Brian; Bassetti, Michael; Newman, Francis; Rabinovitch, Rachel [Department of Radiation Oncology, University of Colorado Health Sciences Center, Aurora, CO (United States)

    2008-12-01T23:59:59.000Z

    Purpose: To assess disease-specific survival (DSS), overall survival (OS), and the effect of radiotherapy (RT) in patients with localized diffuse large B-cell lymphoma (DLBCL). Patients and Methods: The Surveillance, Epidemiology, and End Results database was queried for all patients diagnosed with Stage I, IE, II, or IIE DLBCL between 1988 and 2004. The analyzable data included gender, age, race, stage, presence of extranodal disease, and RT administration. Patients who had died or were lost to follow-up within 6 months of diagnosis were excluded. Results: A total of 13,420 patients met the search criteria. Of these, 5,547 (41%) had received RT and 7,873 (59%) had not. RT was associated with a significant DSS (hazard ratio, 0.82, p <0.0001) and OS benefit that persisted during the 15 years of follow-up. Elderly patients, defined either as those >60 or >70 years old, had significantly improved DSS and OS associated with RT. On multivariate analysis, RT was significantly associated with increased DSS and OS. The 5-year DSS outcomes were highly variable among patient subsets, defined by age, stage, and extranodal disease (range for RT-treated patients, 70% for Stage II, age >60 years to 87% for Stage I, age {<=}60 years). Conclusion: This analysis presents the largest detailed data set of Stage I-II DLBCL patients. The results of our study have demonstrated that RT is associated with a survival advantage in patients with localized DLBCL, a benefit that extends to elderly patients. Outcomes for discrete patient subsets varied greatly. The development of tailored therapy according to the relapse risk is warranted, rather than uniform treatment of all early-stage DLBCL.

  1. Challenges for Lithuania: Ignalina NPP Early Closure

    SciTech Connect (OSTI)

    Teskeviciene, Birute [Ministry of Economy, Gedimino pr. 38/2, Vilnius, LT-01104 (Lithuania); Harrison, Peter [Central Project Management Agency, S. Konarskio 13, Vilnius, LT-03109 (Lithuania)

    2008-01-15T23:59:59.000Z

    As a condition of accession into the European Union (EU), Lithuania is committed to the closure and decommissioning of Ignalina NPP comprising two RBMK-1500 reactor units (Fig. 1). It was agreed in a special protocol to the Accession Treaty that, in return for adequate EU financial assistance, Unit 1 would be closed before 2005 and Unit 2 by the end of 2009. The first unit was duly shut down on December 31, 2004. Lithuania, which has borders with Russia (Kaliningrad territory), Poland, Latvia and Belarus, spent fifty years as part of the Soviet Union and was deeply integrated into its economy and electrical infrastructure. At the break-up of the USSR, Lithuania inherited electricity generating capacity designed to supply the north-west region including ownership of Ignalina NPP located in the north-east of the country. Ignalina NPP Unit 1 was commissioned in 1983, Unit 2 in 1987; the planned lifespan of each unit was 30 years. Construction of a third unit was started but never completed. Since Lithuania became independent in 1990, Ignalina NPP has typically contributed more than 70% of national power supply. The town of Visaginas (population approx. 30,000) was purpose built to serve the plant and staff were brought in from throughout the USSR. With 3200 direct employees, Ignalina NPP remains by far the largest employer. Although there are pockets of Russian-language speakers in communities throughout Lithuania, Visaginas is the only example on a whole-town scale. Thus closure of Ignalina NPP within the restricted timescale required by the EU Accession Treaty commitment set an exceptional challenge to Lithuania. However, since the preparatory phase of decommissioning started in 2000, notable progress has been made, experience gained and lessons learnt. At present Unit 1 remains partially fueled in a state of care and maintenance. Partly burnt fuel is being transferred from Unit 1 to Unit 2 for further irradiation in order to minimize the commitment of new fuel thereby reducing operating costs and the final quantity of spent fuel. Design and construction of the facilities for spent fuel storage, waste processing and free-release is ongoing. The siting of the Near Surface Repository is now in the final stages of approval and construction of the landfill facility is under tendering. In order to facilitate the approval process and minimize the transport of waste, both disposal facilities will be within the boundary of the NPP site. Approximately 450 staff are employed at the shutdown Unit 1 for the safe maintenance of essential systems. The total staffing level at the plant is currently being reduced by around 200 each year, with a larger release to take place at the closure of Unit 2. It is envisaged that 2000 staff will be required for the dismantling operations. Although Ignalina NPP is still in the early stages of closure and decommissioning, some important lessons have already been learnt: Firstly, the importance considering social and financial issues as well as technical factors in deciding the decommissioning strategy. This should be done before the preparation is started of the FDP. The same broad consideration should also be given to the economic restructuring of the local area. Consultation is necessary with local and national authorities, and other stakeholders up to ensure a common vision. At Ignalina NPP it was considered essential to staff morale and the maintenance of a strong safety culture to guarantee the special social and employment benefits to dismissed staff in law [9]. At the same time, measures were also adopted to encourage certain key personnel to remain at the plant until closure. The case of Lithuania, which at independence had no legislative framework or management infrastructure for radioactive waste, may be exceptional; however, for all decommissioning projects it is necessary to have, from the outset, a clear strategy on waste storage and disposal. Finally, coordination at all levels must be assured, especially with the involvement of the nuclear regulators and other regulatory authorities, t

  2. E-print Network Topics: E

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

    origins early life programming early life protein early life socioeconomic early life solar - early molecular events early life solar early life stage early life stages early...

  3. Igneous processes of the early solar system

    E-Print Network [OSTI]

    Singletary, Steven J. (Steven James), 1973-

    2004-01-01T23:59:59.000Z

    Experimental, petrographic and numerical methods are used to explore the igneous evolution of the early solar system. Chapters 1 and 2 detail the results of petrographic and experimental studies of a suite of primitive ...

  4. Haptic holography : an early computational plastic

    E-Print Network [OSTI]

    Plesniak, Wendy J. (Wendy Jean)

    2001-01-01T23:59:59.000Z

    This dissertation introduces haptic holography, a combination of computational modeling and multimodal spatial display, as an early computationalplastic In this work, we combine various holographic displays with a force ...

  5. Stage I Results Social Learning Strategies Tournament Social Learning Strategies Tournament

    E-Print Network [OSTI]

    Stage I Results Social Learning Strategies Tournament 1 Social Learning Strategies Tournament This document provides a report on the first stage of analysis of submitted entries to the social learning, and the results for those strategies that did not progress to Stage II. Stage I details The simulations each

  6. Earthquake Early Warning and the Physics of Earthquake Rupture

    E-Print Network [OSTI]

    Wurman, Gilead

    2010-01-01T23:59:59.000Z

    Eds. ) Earthquake Early Warning Systems. Springer, pp.21-44.for the Taiwan early warning system, Bull. Seism. Soc. Am.of Earthquake Early Warning systems, especially in rare

  7. Incorporating safety risk in early system architecture trade studies

    E-Print Network [OSTI]

    Dulac, Nicholas

    Ideally, safety should be a part of the early decision making used in conceptual system design. However, effectively evaluating safety risk3 early enough to inform the early trade studies is not possible with current ...

  8. The SuperNova Early Warning System

    E-Print Network [OSTI]

    K. Scholberg

    2008-03-04T23:59:59.000Z

    A core collapse in the Milky Way will produce an enormous burst of neutrinos in detectors world-wide. Such a burst has the potential to provide an early warning of a supernova's appearance. I will describe the nature of the signal, the sensitivity of current detectors, and SNEWS, the SuperNova Early Warning System, a network designed to alert astronomers as soon as possible after the detected neutrino signal.

  9. The SuperNova Early Warning System

    E-Print Network [OSTI]

    Scholberg, K

    2008-01-01T23:59:59.000Z

    A core collapse in the Milky Way will produce an enormous burst of neutrinos in detectors world-wide. Such a burst has the potential to provide an early warning of a supernova's appearance. I will describe the nature of the signal, the sensitivity of current detectors, and SNEWS, the SuperNova Early Warning System, a network designed to alert astronomers as soon as possible after the detected neutrino signal.

  10. DEVELOPMENT OF COLD CLIMATE HEAT PUMP USING TWO-STAGE COMPRESSION

    SciTech Connect (OSTI)

    Rice, C Keith [ORNL; Abdelaziz, Omar [ORNL; Shrestha, Som S [ORNL

    2015-01-01T23:59:59.000Z

    This paper uses a well-regarded, hardware based heat pump system model to investigate a two-stage economizing cycle for cold climate heat pump applications. The two-stage compression cycle has two variable-speed compressors. The high stage compressor was modelled using a compressor map, and the low stage compressor was experimentally studied using calorimeter testing. A single-stage heat pump system was modelled as the baseline. The system performance predictions are compared between the two-stage and single-stage systems. Special considerations for designing a cold climate heat pump are addressed at both the system and component levels.

  11. Production and Early Preservation of Lipid Biomarkers in Iron...

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

    Production and Early Preservation of Lipid Biomarkers in Iron Hot Springs. Production and Early Preservation of Lipid Biomarkers in Iron Hot Springs. Abstract: The...

  12. Statistical Methods and Tools for Hanford Staged Feed Tank Sampling

    SciTech Connect (OSTI)

    Fountain, Matthew S.; Brigantic, Robert T.; Peterson, Reid A.

    2013-10-01T23:59:59.000Z

    This report summarizes work conducted by Pacific Northwest National Laboratory to technically evaluate the current approach to staged feed sampling of high-level waste (HLW) sludge to meet waste acceptance criteria (WAC) for transfer from tank farms to the Hanford Waste Treatment and Immobilization Plant (WTP). The current sampling and analysis approach is detailed in the document titled Initial Data Quality Objectives for WTP Feed Acceptance Criteria, 24590-WTP-RPT-MGT-11-014, Revision 0 (Arakali et al. 2011). The goal of this current work is to evaluate and provide recommendations to support a defensible, technical and statistical basis for the staged feed sampling approach that meets WAC data quality objectives (DQOs).

  13. Multi-stage depressed collector for small orbit gyrotrons

    DOE Patents [OSTI]

    Singh, A.; Ives, R.L.; Schumacher, R.V.; Mizuhara, Y.M.

    1998-07-14T23:59:59.000Z

    A multi-stage depressed collector for receiving energy from a small orbit gyrating electron beam employs a plurality of electrodes at different potentials for sorting the individual electrons on the basis of their total energy level. Magnetic field generating coils, for producing magnetic fields and magnetic iron for magnetic field shaping produce adiabatic and controlled non-adiabatic transitions of the incident electron beam to further facilitate the sorting. 9 figs.

  14. Multi-stage depressed collector for small orbit gyrotrons

    DOE Patents [OSTI]

    Singh, Amarjit (Greenbelt, MD); Ives, R. Lawrence (Saratoga, CA); Schumacher, Richard V. (Campbell, CA); Mizuhara, Yosuke M. (Palo Alto, CA)

    1998-01-01T23:59:59.000Z

    A multi-stage depressed collector for receiving energy from a small orbit gyrating electron beam employs a plurality of electrodes at different potentials for sorting the individual electrons on the basis of their total energy level. Magnetic field generating coils, for producing magnetic fields and magnetic iron for magnetic field shaping produce adiabatic and controlled non-adiabatic transitions of the incident electron beam to further facilitate the sorting.

  15. Single Stage Contactor Testing Of The Next Generation Solvent Blend

    SciTech Connect (OSTI)

    Herman, D. T.; Peters, T. B.; Duignan, M. R.; Williams, M. R.; Poirier, M. R.; Brass, E. A.; Garrison, A. G.; Ketusky, E. T.

    2014-01-06T23:59:59.000Z

    The Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) facility at the Savannah River Site (SRS) is actively pursuing the transition from the current BOBCalixC6 based solvent to the Next Generation Solvent (NGS)-MCU solvent to increase the cesium decontamination factor. To support this integration of NGS into the MCU facility the Savannah River National Laboratory (SRNL) performed testing of a blend of the NGS (MaxCalix based solvent) with the current solvent (BOBCalixC6 based solvent) for the removal of cesium (Cs) from the liquid salt waste stream. This testing utilized a blend of BOBCalixC6 based solvent and the NGS with the new extractant, MaxCalix, as well as a new suppressor, tris(3,7dimethyloctyl) guanidine. Single stage tests were conducted using the full size V-05 and V-10 liquid-to-liquid centrifugal contactors installed at SRNL. These tests were designed to determine the mass transfer and hydraulic characteristics with the NGS solvent blended with the projected heel of the BOBCalixC6 based solvent that will exist in MCU at time of transition. The test program evaluated the amount of organic carryover and the droplet size of the organic carryover phases using several analytical methods. The results indicate that hydraulically, the NGS solvent performed hydraulically similar to the current solvent which was expected. For the organic carryover 93% of the solvent is predicted to be recovered from the stripping operation and 96% from the extraction operation. As for the mass transfer, the NGS solvent significantly improved the cesium DF by at least an order of magnitude when extrapolating the One-stage results to actual Seven-stage extraction operation with a stage efficiency of 95%.

  16. Rapid Cycling Synchrotron (RCS) sngle-stage kicker magnet

    SciTech Connect (OSTI)

    Suddeth, D.E.; Volk, G.J.

    1980-01-01T23:59:59.000Z

    A new single stage kicker magnet system is designed and is being fabricated for the RCS accelerator of the Intense Pulsed Neutron Source (IPNS-I) at the Argonne National Laboratory. This system will replace the two stage kicker in present use. The magnet aperture is 10 cm wide by 5 cm high and the magnetic length is 0.89 m. The magnetic field intensity is 0.1021 T for a 25 milliradian kick to the 500 MeV proton beam. A field rise time (10 to 90%) of 80 ns and a flattop of 100 ns is needed. The magnetic field fall time is not critical so a lumped parameter magnet with a 7.2 ohm load will be used. The electric current required through the single turn magnet is 4863 A. A new energy storage and switching system is designed and is being fabricated for energizing the magnets. The techniques and hardware used will be described along with some of the experience gained in the use of the two stage system which will help to improve the new design.

  17. Extreme-UV scanning wafer and reticle stages

    DOE Patents [OSTI]

    Williams, Mark E. (Windham, NH)

    2002-01-01T23:59:59.000Z

    A stage for precise positioning of a chuck in three orthogonal linear axes and in three orthogonal rotation axes that includes first and second subassemblies. The a first subassembly includes (i) a monolithic mirror that supports the chuck wherein the monolithic mirror has at least two polished orthogonal faces for interferometric determination of the X, Y, and .THETA.z positions; (ii) a plurality of electromagnetic actuators that control fine positioning in all six axes and coarse positioning in one axis; (iii) a position sensor for measuring the vertical Z position of the monolithic mirror; and (iv) a Lorentz actuator, that includes magnet array, for effecting motion in the Y axis. The a second subassembly comprising a stepping axis beam over which the first subassembly is suspended, wherein the stepping axis beam includes a drive coil array for the Lorentz actuator. T the stage can also include a cable stage subassembly that is positioned a fixed distance away from the monolithic mirror and/or a mechanical zero reference for the first subassembly.

  18. Doc.CSG(O6)O21 Def. CONSIGLIO SCIENTIFICO GENERALE

    E-Print Network [OSTI]

    Pedicini, Marco

    Scientitico Generale (CSG): PISTELLA Prat. Fabio AIRAGHI Dott. Angelo ANDRET A Prot. Ezio BERTOLINO Dott

  19. Data:D70def12-9680-4116-9336-69c732919491 | Open Energy Information

    Open Energy Info (EERE)

    matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Alabama Power Co...

  20. Getting the Word Out: Diesel Exhaust Fluid (DEF) Locator, Mapping Tools, and Outreach Activities (Presentation)

    SciTech Connect (OSTI)

    Brodt-Giles, Debbie

    2008-12-01T23:59:59.000Z

    Presentation covers diesel exhaust fluid resources on the Alternative Fuels and Advanced Vehicles Data Center.

  1. Assessment of a multi-stage underwater vehicle concept using a fossil-fuel Stirling engine

    SciTech Connect (OSTI)

    Reader, G.T.; Potter, I.J. [Univ. of Calgary, Alberta (Canada). Dept. of Mechanical Engineering

    1995-12-31T23:59:59.000Z

    The Stirling Engine because of its inherent closed-cycle operation can be readily modified to work in an airless environment even if the primary source of energy is a fossil fuel. Thus, Stirling engines are well suited for use in the underwater environment and have been operated successfully in manned military submarines since the early 1980s. In recent years fossil fueled Stirling systems have been also proposed for use in small unmanned underwater vehicles (UUVs). However, in this case the need to carry an onboard oxygen supply in a very confined space has presented a number of design difficulties. These are identified in the paper. However, if the oxidant supply to the engine is provided by the membrane extraction of dissolved oxygen from seawater and/or disposable fuel/oxidant pods are used then the UUV Stirling system becomes more attractive. If this latter concept is extended to include multi-stage vehicles then it can be shown that fossil fueled Stirlings could also be put to effective use in long range-long endurance underwater vehicular operations.

  2. Reciprocal space analysis of the initial stages of strain relaxation in SiGe epilayers

    SciTech Connect (OSTI)

    Lee, S.R.; Floro, J.A.

    1996-01-01T23:59:59.000Z

    Metastable SiGe films were grown by MBE on Si (001) substrates and annealed to promote varying degrees of partial relaxation. X-ray diffraction reciprocal-space analysis was then used to monitor the structural evolution of the displacement fields of the dislocation array with increasing misfit density. The diffuse-x-ray-scattering patterns of the dislocated heterolayers were compared with lineal- misfit densities determined by defect etching, leading to the develop a geometric model which provides a framework for understanding the early-stage evolution of the displacement fields of the dislocation array, and which also explicitly links diffuse x-ray intensity to misfit density. At low misfit density, the diffuse intensity arises from two-dimensional displacement fields associated with single-nonoverlapping dislocations. As misfit density increases, the displacement fields of individual dislocations increasingly overlap producing three-dimensional displacements. The evolving diffuse intensity reflects the transition from 2-D to 3-D displacement fields. Finally, it is demonstrated that the diffuse x-ray intensity of the strained epilayer can be used to accurately measure lineal misfit- dislocation densities from 400 to 20,000 lines/cm.

  3. Early Adopter PDC AtEarly Adopter PDC At Washington and LeeWashington and Lee

    E-Print Network [OSTI]

    Stough, Joshua

    Early Adopter ­ PDC AtEarly Adopter ­ PDC At Washington and LeeWashington and Lee Four-year Liberal with and manipulation of collections of stuff.manipulation of collections of stuff. · PDC applications: sorting, recursive treePDC applications: sorting, recursive tree structures, image processing,...structures, image

  4. Optimal Seismic Network Density for Earthquake Early Warning: A Case

    E-Print Network [OSTI]

    Allen, Richard M.

    . Serdar Kuyuk and Richard M. Allen INTRODUCTION Earthquake Early Warning Systems (EEWS) rapidly detect and the public actively use early warning information is a crucial factor in early warning system design (AktasOptimal Seismic Network Density for Earthquake Early Warning: A Case Study from California by H

  5. Hyperaccretion after the Blandford-Znajek Process: a New Model for GRBs with X-Ray Flares Observed in Early Afterglows

    E-Print Network [OSTI]

    Wei-Hua Lei; Ding-Xiong Wang; Yuan-Chuan Zou; Lei Zhang

    2008-02-04T23:59:59.000Z

    We propose a three-stage model with Blandford-Znajek (BZ) and hyperaccretion process to interpret the recent observations of early afterglows of Gamma-Ray Bursts (GRBs). In the first stage, the prompt GRB is powered by a rotating black hole (BH) invoking the BZ process. The second stage is a quiet stage, in which the BZ process is shut off, and the accretion onto the BH is depressed by the torque exerted by the magnetic coupling (MC) process. Part of the rotational energy transported by the MC process from the BH is stored in the disk as magnetic energy. In the third stage, the MC process is shut off when the magnetic energy in the disk accumulates and triggers the magnetic instability. At this moment, the hyperaccretion process may onset, and the jet launched in this restarted central engine generates the observed X-ray flares. This model can account for energies and timescales of GRBs with X-ray flares observed in early afterglows.

  6. Irenaeus, a renewal of the early Church

    E-Print Network [OSTI]

    Bond, Patricia Garner

    1983-01-01T23:59:59.000Z

    IRENAEUS: A RENEWAL OF THE EARLY CHURCH A Thesis by PATRICIA GARNER BOND Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF ARTS December 1983 Major Subject...: History IRENAEUS: A RENEWAL OF THE EARLY CHURCH A Thesis by PATRICIA GARNER BOND Approved as to style and content by: ) 4 r Zol tan J. Kopzpolnyik (Cha i dsfan) f +PC'cp C' , - -~c4J Brison D. Gooch (Member) / Georg F. Bass (Me ber) Hen y...

  7. An algorithm for solving branching, multi-stage optimization systems

    E-Print Network [OSTI]

    Burns, Jack Patton

    1972-01-01T23:59:59.000Z

    August 1972 ABSTRACT An Algor1thm For Solv1ng Branching, Multistage Optimization Systems. (August, 1972) Jack Patton Burns, B. S. , University of Arizona; B. S. , Texas A&M Un1versity Directed by: Dr. Wilbur L. Meier In recent years, the concern... or continuous and the stage returns and transition functions can be linear or nonlinear. For cont1nuous systems, the algorithm uses a Fibonacc1 search routine. A cho1ce of three optional outputs 1s available depending on the information des1red by the user...

  8. Analysis of multi-stage centrifugal pumps using transfer matrices

    E-Print Network [OSTI]

    Kelly, J. Howard

    1989-01-01T23:59:59.000Z

    (m] angle about y-axis [rod] angular velocity about y ? axis [rod/s] damping exponent of free vibration ~rod/s] 180 degrees converted to radians phase angle associated with imbalance [deg angle about x ? axis [rad] angular acceleration about x... APPENDIX J APPENDIX K 176 180 VITA 185 LIST OP TABLES Table Page 1 Natural Frequencies using Single Spool Model (rad(sec) 59 2 Eigenvalue Accuracy Comparison (rad/sec) 59 3 Equilibrium Comparison 4 Natural Frequency Calculations for an 11 Stage...

  9. Optimization of a two stage light-gas gun

    E-Print Network [OSTI]

    Rynearson, Richard James

    1972-01-01T23:59:59.000Z

    AND ACCELERATION AT TIME "t" CALCULATE NEW PISTON VELOCITY AND POSITION BASED OH STEP 5 DECREASE ht HAS DIAPHRAGM OPENEDT YES CALCULATE PROJECTILE 6c ACCELERATION AT TIME "t" AND NO( VELOCITY AND POSITION NO CALCULATE dT/dt FOR LIGHT GAS AT ?t+dt? 6e... Subject: Aerospace Engineering OPTIMIZATION OF A TWO STAGE LIGHT-GAS GUN A Thesis by RICHARD JAMES RYNEARSON Approved as to style and content by: ( irman of Comni ttee) J. L. Rand (Head of Department) A. E. Cronk (Member) D. J. Norton (Member) C...

  10. Method of operating a two-stage coal gasifier

    DOE Patents [OSTI]

    Tanca, Michael C. (Tariffville, CT)

    1982-01-01T23:59:59.000Z

    A method of operating an entrained flow coal gasifier (10) via a two-stage gasification process. A portion of the coal (18) to be gasified is combusted in a combustion zone (30) with near stoichiometric air to generate combustion products. The combustion products are conveyed from the combustion zone into a reduction zone (32) wherein additional coal is injected into the combustion products to react with the combustion products to form a combustible gas. The additional coal is injected into the reduction zone as a mixture (60) consisting of coal and steam, preferably with a coal-to-steam weight ratio of approximately ten to one.

  11. Thermonuclear Supernovae: Simulations of the Deflagration Stage and Their Implications

    E-Print Network [OSTI]

    V. N. Gamezo; A. M. Khokhlov; E. S. Oran; A. Y. Chtchelkanova; R. O. Rosenberg

    2002-12-03T23:59:59.000Z

    Large-scale three-dimensional numerical simulations of the deflagration stage of a thermonuclear supernova explosion show the formation and evolution of a highly convoluted turbulent flame in a gravitational field of an expanding carbon-oxygen white dwarf. The flame dynamics is dominated by the gravity-induced Rayleigh-Taylor instability that controls the burning rate. The thermonuclear deflagration releases enough energy to produce a healthy explosion. The turbulent flame, however, leaves large amounts of unburnt and partially burnt material near the star center, whereas observations imply these materials only in outer layers. This disagreement could be resolved if the deflagration triggers a detonation.

  12. Isolated thermal neutron stars, SGRs and AXPs: propellers and early accretors with conventional magnetic fields?

    E-Print Network [OSTI]

    M. Ali Alpar

    1999-12-10T23:59:59.000Z

    The similarity of rotation periods from three interesting classes of neutron stars, the anomalous X-ray pulsars (AXPs), the soft gamma ray repeaters (SGRs) and the dim isolated thermal neutron stars (DTNs) suggests a common mechanism with an asymptotic spindownphase, extending through the propeller and early accretion stages. The DTNs are interpreted as sources in the propeller stage. Their low luminosities arise from frictional heating in the neutron star. SGRs and AXPs are accreting at $\\dot{M} \\sim 10^{15} gm/s $. The limited range of near equilibrium periods corresponds to a limited range of mass inflow rates $\\dot{M}$. For lower rates the source of mass inflow may be depleted before the asymptotic stage is reached, while sources with higher $\\dot{M}$ or later ages possess circumstellar material that is optically thick to electron scattering, destroying the X-ray beaming and the modulation at the rotation period. The model works with conventional magnetic fields of 10$^{11}-10^{12}$ G, obviating the need to postulate magnetars. Frequently sampled timing observations of AXPs, SGRs and DTNs can distinguish between this explanation and the magnetar model.

  13. Cizelj & Riesch-Oppermann: Modelling the Early Development of... page 1 of 19 MODELING THE EARLY DEVELOPMENT OF

    E-Print Network [OSTI]

    Cizelj, Leon

    . Rather severe stress corrosion cracking has been the major cause of early retirement of PWR steamCizelj & Riesch-Oppermann: Modelling the Early Development of... page 1 of 19 MODELING THE EARLY to be still somewhat in the future. Especially the early phase of the development of cracks, also called

  14. Low profile, high load vertical rolling positioning stage

    DOE Patents [OSTI]

    Shu, Deming (Darien, IL); Barraza, Juan (Aurora, IL)

    1996-01-01T23:59:59.000Z

    A stage or support platform assembly for use in a synchrotron accurately positions equipment to be used in the beam line of the synchrotron. The support platform assembly includes an outer housing in which is disposed a lifting mechanism having a lifting platform or stage at its upper extremity on which the equipment is mounted. A worm gear assembly is located in the housing and is adapted to raise and lower a lifting shaft that is fixed to the lifting platform by an anti-binding connection. The lifting platform is moved vertically as the lifting shaft is moved vertically. The anti-binding connection prevents the shaft from rotating with respect to the platform, but does permit slight canting of the shaft with respect to the lifting platform so as to eliminate binding and wear due to possible tolerance mismatches. In order to ensure that the lifting mechanism does not move in a horizontal direction as it is moved vertically, at least three linear roller bearing assemblies are arranged around the outer-periphery of the lifting mechanism. One of the linear roller bearing assemblies can be adjusted so that the roller bearings apply a loading force against the lifting mechanism. Alternatively, a cam mechanism can be used to provide such a loading force.

  15. Journal of Climate EARLY ONLINE RELEASE

    E-Print Network [OSTI]

    Hu, Yongyun

    investigate the climate dynamic feedbacks during a transition from the present climate7 to the extremely coldJournal of Climate EARLY ONLINE RELEASE This is a preliminary PDF of the author-produced manuscript. Hu, 2011: The initiation of modern "soft Snowball" and "hard Snowball" climates in CCSM3. Part II

  16. Heart Disease and Early Heart Attack Care

    E-Print Network [OSTI]

    Ohta, Shigemi

    Heart Disease and Early Heart Attack Care Pamela Kostic, RN, CCCC, Chest Pain Coordinator, Stony Risk Factors · EHAC & Prevention #12;Heart disease includes a number of problems affecting the heart and the blood vessels in the heart. #12;Types of heart disease include: · Coronary artery disease (CAD) · Angina

  17. Early diagenetic transformations of peat Original research

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Early diagenetic transformations of peat Original research Organic matter sources and decay;KEY WORDS: bioindicators - carbohydrates - labile organic matter - peat botanical composition to the fate of organic matter (OM) in the underlying peat. Our aims were to determine how moisture conditions

  18. Medieval and Early Modern Events in Durham

    E-Print Network [OSTI]

    Wirosoetisno, Djoko

    's Library (1669) on the UNESCO World Heritage site of Palace Green following a major restoration project exhibition of the Lindisfarne Gospels, and celebrate the rich resources of the city's historic libraries ­ Cosin's Library, the Cathedral Library, and the Library of Ushaw College. · Early Modern Catholicism

  19. Preserving the Colors of Early Cinema

    E-Print Network [OSTI]

    Zanibbi, Richard

    Preserving the Colors of Early Cinema through the Davide Turconi Film Frame Collection Joshua of Chicago 4pm Wed, Sept. 27 Auditorium of the Center for Imaging Science While most surviving silent films as well as Kinetoscope films were colored. Color has thus existed in the cinema since its inception, yet

  20. The prospects for electric and hybrid electric vehicles: Second-stage results of a two-stage Delphi study

    SciTech Connect (OSTI)

    Ng, H.K.; Anderson, J.L.; Santini, D.J.; Vyas, A.D.

    1996-08-01T23:59:59.000Z

    This study was conducted to collect information for a technical and economic assessment of electric (EV) and hybrid (HEV) vehicles. The first-stage worldwide survey was completed in fall 1994, while the second-stage was completed by summer 1995. The paper reports results from the second round of the survey and major differences between the two rounds. This second-stage international survey obtained information from 93 expert respondents from the automotive technology field. Key results: EVs will penetrate the market first, followed by internal combustion engine HEVs, while gas turbine and fuel cell HEVs will come after 2020. By 2020, EVs and internal combustion engine HEVs will have a 15% share of the new vehicle market; they will also cost 18-50% more and will be slightly inferior to 1993 gasoline cars. AC induction motor is projected to be superior to DC and DC brushless motors by 2020, although the DC motor will be less expensive in 2000. DC brushless motors are projected to be the most expensive. Though generally declining, battery costs will remain high. EVs are believed to be effective in reducing urban emissions; however, their costs must be reduced drastically. Petroleum is expected to be the predominant fuel for hybrid vehicles through 2020. Mean energy equivalent fuel economy of electric drivetrain vehicles is projected to be 20-40% greater than for conventional vehicles in 2000, and to rise a few percents during the projection period. Respondents anticipate only a 16% increase in conventional vehicle fuel economy from 2000 to 2020.

  1. Characterization of the Acoustic Interactions in a Two-Stage Multi-Injection Combustor Fed with

    E-Print Network [OSTI]

    Boyer, Edmond

    Characterization of the Acoustic Interactions in a Two-Stage Multi-Injection Combustor Fed and efficient mixing. A laboratory-scale staged multipoint combustor is developed in the present study

  2. Entering a New Stage of Learning from the U.S. Fuel Cell Electric...

    Energy Savers [EERE]

    Entering a New Stage of Learning from the U.S. Fuel Cell Electric Vehicle Demonstration Project: Preprint Entering a New Stage of Learning from the U.S. Fuel Cell Electric Vehicle...

  3. Film Cooling, Heat Transfer and Aerodynamic Measurements in a Three Stage Research Gas Turbine

    E-Print Network [OSTI]

    Suryanarayanan, Arun

    2010-07-14T23:59:59.000Z

    The existing 3-stage turbine research facility at the Turbomachinery Performance and Flow Research Laboratory (TPFL), Texas A and M University, is re-designed and newly installed to enable coolant gas injection on the first stage rotor platform...

  4. Application of a design optimization strategy to multi-stage compressor matching

    E-Print Network [OSTI]

    Bert, Jérôme

    2006-01-01T23:59:59.000Z

    A major challenge in the design of multi-stage compressors is the matching of stages to enable stable operation over a large range of mass flows and operating conditions. Particularly in turbofan low-pressure compressors, ...

  5. Original article Effect of maturity stage of Italian rye grass and

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Effect of maturity stage of Italian rye grass and lucerne on ruminal nitrogen samples of rye grass and 5 of lucerne were harvested during the 1 st cycle of growth at different stages

  6. Optimal Design and Fabrication of a Piezoactuated Flexure XYZ Parallel Micropositioning Stage

    E-Print Network [OSTI]

    Li, Yangmin

    and Technology, University of Macau, Av. Padre Tom´as Pereira, Taipa, Macao SAR, P. R. China. Corresponding not be realized, a decoupled XYZ stage with proper calibrations is preferred [3]. Moreover, a decoupled stage

  7. Recirculation on a single stage of vertical flow constructed wetland: treatment limits and operation modes

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Recirculation on a single stage of vertical flow constructed wetland: treatment limits French vertical flow constructed wetlands (VFCWs) plant comprises two stages of treatment which the first and treatment performances in different operating conditions. Results showed good performances

  8. La noche de los asesinos: Playscript and Stage Enactment

    E-Print Network [OSTI]

    Nigro, Kirsten F.

    1977-10-01T23:59:59.000Z

    of the heinous crime and finally, Lalo's arrest and trial. In a whirligig of role- playing, the cast of three multiplies itself, as the siblings assume the parts of their parents, their neighbors, some newspaper vendors, the police, and the judge... noche de los asesinos, where substance is largely conveyed by the way in which the dramatic action is made to happen. When Beba announces early in the play that "La representación ha empe zado,"13 and Cuca reacts by asking "żOtra vez?" (p. 3), we...

  9. On the Origin of Early Superhumps in WZ Sge-Type Stars

    E-Print Network [OSTI]

    T. Kato

    2002-01-15T23:59:59.000Z

    The origin of early superhumps, which are double-wave periodic modulations seen only during the earliest stage of WZ Sge-type outburst, has not been well understood. Based on recent discovery of two-armed arch-like patterns on Doppler tomograms in conjunction with early superhumps, we propose a new interpretation on the origin of early superhumps, following the new interpretation by Smak (2001) and Ogilvie (2001) of the two-armed pattern seen in IP Peg. If we consider irradiation of the elevated surface of the accretion disk caused by vertical tidal deformation, we can consistently explain the observed features on Doppler tomograms and photometric waves at the same time. We interpret that a combination of low mass-ratios (q) and low mass-transfer rates, necessary to give rise to these tidal effects, discriminate WZ Sge-type stars from other SU UMa-type dwarf novae. Based on recent fluid calculations, such an effect would be observable in higher q systems. We interpret that RZ Leo is an example of such objects.

  10. Dynamics of Multi-Stage Bladed Disks Systems Denis Laxalde(a,b)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of multi-stage cyclic structures such as turbomachinery compressors or turbines. Each stage is modeled diameter problems separately. The method is first validated on a simple case study which shows good compressor stages is then presented. Then the forced response application is presented in which synchronous

  11. 0018-9162/00/$10.00 2000 IEEE2 Computer A Staged Model for

    E-Print Network [OSTI]

    change during a system's life cycle. Manny Lehman3 documented the inevitability of the evolution stage and late stages of the life cycle.5 Initial development During initial development, engineers build0018-9162/00/$10.00 © 2000 IEEE2 Computer A Staged Model for the Software Life Cycle S oftware

  12. Sensitivity of a Compressor Repeating-Stage to Geometry Jer^ome LAVAINNE

    E-Print Network [OSTI]

    Peraire, Jaime

    Sensitivity of a Compressor Repeating-Stage to Geometry Variation by J´er^ome LAVAINNE Dipl^ome d Students #12;2 #12;Sensitivity of a Compressor Repeating-Stage to Geometry Variation by J´er^ome LAVAINNE and probabilistic sensitivity analyses of an embedded compressor stage perfor- mance to blade geometric variations

  13. PhD position: Numerical study on ice accretion on fan blades and compressor stages

    E-Print Network [OSTI]

    Twente, Universiteit

    PhD position: Numerical study on ice accretion on fan blades and compressor stages Within on fan blades and compressor stages. This research is carried out in the framework of the HAIC (High a computational tool to predict the ice accretion on fan blades and the first compressor stages of commercial jet

  14. Alternatives generation and analysis for phase I intermediate waste feed staging system design requirements

    SciTech Connect (OSTI)

    Britton, M.D.

    1996-10-02T23:59:59.000Z

    This document provides; a decision analysis summary; problem statement; constraints, requirements, and assumptions; decision criteria; intermediate waste feed staging system options and alternatives generation and screening; intermediate waste feed staging system design concepts; intermediate waste feed staging system alternative evaluation and analysis; and open issues and actions.

  15. Self-regulating fuel staging port for turbine combustor

    DOE Patents [OSTI]

    Van Nieuwenhuizen, William F.; Fox, Timothy A.; Williams, Steven

    2014-07-08T23:59:59.000Z

    A port (60) for axially staging fuel and air into a combustion gas flow path 28 of a turbine combustor (10A). A port enclosure (63) forms an air path through a combustor wall (30). Fuel injectors (64) in the enclosure provide convergent fuel streams (72) that oppose each other, thus converting velocity pressure to static pressure. This forms a flow stagnation zone (74) that acts as a valve on airflow (40, 41) through the port, in which the air outflow (41) is inversely proportion to the fuel flow (25). The fuel flow rate is controlled (65) in proportion to engine load. At high loads, more fuel and less air flow through the port, making more air available to the premixing assemblies (36).

  16. Turbulent heat transfer performance of single stage turbine

    SciTech Connect (OSTI)

    Amano, R.S.; Song, B.

    1999-07-01T23:59:59.000Z

    To increase the efficiency and the power of modern power plant gas turbines, designers are continually trying to raise the maximum turbine inlet temperature. Here, a numerical study based on the Navier-Stokes equations on a three-dimensional turbulent flow in a single stage turbine stator/rotor passage has been conducted and reported in this paper. The full Reynolds-stress closure model (RSM) was used for the computations and the results were also compared with the computations made by using the Launder-Sharma low-Reynolds-number {kappa}-{epsilon} model. The computational results obtained using these models were compared in order to investigate the turbulence effect in the near-wall region. The set of the governing equations in a generalized curvilinear coordinate system was discretized by using the finite volume method with non-staggered grids. The numerical modeling was performed to interact between the stator and rotor blades.

  17. Axially staged combustion system for a gas turbine engine

    DOE Patents [OSTI]

    Bland, Robert J. (Oviedo, FL)

    2009-12-15T23:59:59.000Z

    An axially staged combustion system is provided for a gas turbine engine comprising a main body structure having a plurality of first and second injectors. First structure provides fuel to at least one of the first injectors. The fuel provided to the one first injector is adapted to mix with air and ignite to produce a flame such that the flame associated with the one first injector defines a flame front having an average length when measured from a reference surface of the main body structure. Each of the second injectors comprising a section extending from the reference surface of the main body structure through the flame front and having a length greater than the average length of the flame front. Second structure provides fuel to at least one of the second injectors. The fuel passes through the one second injector and exits the one second injector at a location axially spaced from the flame front.

  18. Instability Control in a Staged Z-pinch

    SciTech Connect (OSTI)

    Frank J. WESSEL

    2011-04-22T23:59:59.000Z

    A \\Staged Z-Pinchâ?ť is a fusion-energy concept in which stored-electric energy is first converted into plasma-liner-kinetic energy, and then transferred to a coaxialtarget plasma [H. U. Rahman, F. J. Wessel, and N. Rostoker, Phys. Rev. Lett. 74, p. 714(1996)]. Proper choice of the liner and target materials, and their initial radii and mass densities, leads to dynamic stabilization, current amplification, and shock heating of the target. Simulations suggest that this configuration has merit as a alternative inertial-confinement-fusion concept, and may provide an energy release exceeding thermonuclear break-even, if tested on one of many newer pulsed power systems, for example those located at Sandia National Laboratories.

  19. Staged fluidized-bed coal combustor for boiler retrofit

    SciTech Connect (OSTI)

    Rehmat, A. (Institute of Gas Technology, Chicago, IL (United States)); Dorfman, L.; Shibayama, G. (Fluor-Daniels, Inc., Chicago, IL (United States)); Waibel, R. (Zink (J.) and Co., Tulsa, OK (United States))

    1991-01-01T23:59:59.000Z

    The Advanced Staged Fluidized-Bed Coal Combustion System (ASC) is a novel clean coal technology for either coal-fired repowering of existing boilers or for incremental power generation using combined-cycle gas turbines. This new technology combines staged combustion for gaseous emission control, in-situ sulfur capture, and an ash agglomeration/vitrification process for the agglomeration/vitrification of ash and spent sorbent, thus rendering solid waste environmentally benign. The market for ASC is expected to be for clean coal-fired repowering of generating units up to 250 MW, especially for units where space is limited. The expected tightening of the environmental requirements on leachable solids residue by-products could considerably increase the marketability for ASC. ASC consists of modular low-pressure vessels in which coal is partially combusted and gasified using stacked fluidized-bed processes to produce low-to-medium-Btu, high-temperature gas. This relatively clean fuel gas is used to repower/refuel existing pulverized-coal, natural gas, or oil-fired boilers using bottom firing and reburning techniques. The benefits of ASC coal-fired repowering include the ability to repower boilers without obtaining additional space while meeting the more stringent environmental requirements of the future. Low NO{sub x}, SO{sub x}, and particulate levels are expected while a nonleachable solid residue with trace metal encapsulation is produced. ASC also minimizes boiler modification and life-extension expenditures. Repowered efficiencies can be restored to the initial operating plant efficiency, and the existing boiler capacity can be increased by 10%. Preliminary cost estimates indicate that ASC will have up to a $250/kW capital cost advantage over existing coal-fired repowering options. 4 figs., 4 tabs.

  20. Optimizing Center Performance through Coordinated Data Staging, Scheduling and Recovery

    SciTech Connect (OSTI)

    Zhang, Zhe [ORNL; Wang, Chao [ORNL; Vazhkudai, Sudharshan S [ORNL; Ma, Xiaosong [ORNL; Pike, Gregory [ORNL; Cobb, John W [ORNL; Mueller, Frank [North Carolina State University

    2007-01-01T23:59:59.000Z

    Procurement and optimized utilization of Petascale supercomputers and centers is a renewed national priority. Sustained performance and availability of such large centers is a key technical challenge significantly impacting their usability. As recent research shows, storage systems can be a primary fault source leading to unavailability of even today's supercomputer. Due to data unavailability, jobs are frequently resubmitted resulting in reduced compute center performance as well as in a lack of coordination between I/O activities and job scheduling. In this work, we explore two mechanisms, namely the coordination of job scheduling and data staging/offloading and on-demand job input data reconstruction to address the availability of job input/output data and to improve center-wide performance. Fundamental to both mechanisms is the efficient management of transient data: in the way it is scheduled and recovered. Collectively, from a center standpoint, these techniques optimize resource usage and increase its data/service availability. From a user job standpoint, they reduce job turnaround time and optimize the usage of allocated time. We have implemented our approaches within commonly used supercomputer software tools such as the PBS scheduler and the Lustre parallel file system. We have gathered reconstruction data from a production supercomputer environment using multiple data sources. We conducted simulations based on the measured data recovery performance, the job traces and staged data logs from leadership-class supercomputer centers. Our results indicate that the average waiting time of jobs is reduced. This trend increases significantly for larger jobs and also as data is striped over more I/O nodes.

  1. MAGNESIUM ISOTOPE EVIDENCE FOR SINGLE STAGE FORMATION OF CB CHONDRULES BY COLLIDING PLANETESIMALS

    SciTech Connect (OSTI)

    Olsen, Mia B.; Schiller, Martin; Krot, Alexander N.; Bizzarro, Martin [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Copenhagen DK-1350 (Denmark)] [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Copenhagen DK-1350 (Denmark)

    2013-10-10T23:59:59.000Z

    Chondrules are igneous spherical objects preserved in chondritic meteorites and believed to have formed during transient heating events in the solar protoplanetary disk. Chondrules present in the metal-rich CB chondrites show unusual chemical and petrologic features not observed in other chondrite groups, implying a markedly distinct formation mechanism. Here, we report high-precision Mg-isotope data for 10 skeletal olivine chondrules from the Hammadah al Hamra 237 (HH237) chondrite to probe the formation history of CB chondrules. The {sup 27}Al/{sup 24}Mg ratios of individual chondrules are positively correlated to their stable Mg-isotope composition (?{sup 25}Mg), indicating that the correlated variability was imparted by a volatility-controlled process (evaporation/condensation). The mass-independent {sup 26}Mg composition (?{sup 26}Mg*) of chondrules is consistent with single stage formation from an initially homogeneous magnesium reservoir if the observed ?{sup 25}Mg variability was generated by non-ideal Rayleigh-type evaporative fractionation characterized by a ? value of 0.5142, in agreement with experimental work. The magnitude of the mass-dependent fractionation (?300 ppm) is significantly lower than that suggested by the increase in {sup 27}Al/{sup 24}Mg values, indicating substantial suppression of isotopic fractionation during evaporative loss of Mg, possibly due to evaporation at high Mg partial pressure. Thus, the Mg-isotope data of skeletal chondrules from HH237 are consistent with their origin as melts produced in the impact-generated plume of colliding planetesimals. The inferred ?{sup 26}Mg* value of –3.87 ± 0.93 ppm for the CB parent body is significantly lower than the bulk solar system value of 4.5 ± 1.1 ppm inferred from CI chondrites, suggesting that CB chondrites accreted material comprising an early formed {sup 26}Al-free component.

  2. Energy transitions in the early 21st Century

    SciTech Connect (OSTI)

    Paul Meakin

    2013-01-01T23:59:59.000Z

    We are in the early stages of a long and complex transition from a global economy based on fossil energy to an economy based on low carbon renewable energy. However, fossil fuel resources are abundant and widely distributed, and they will remain the dominant source of primary energy for at least the next quarter century. In the United States, displacement of coal by natural gas for electric power generation has done more to reduce CO2 emissions than all new renewables combined, and this may occur globally for the next decade or two, even if the European Union does not take advantage of its large unconventional natural gas resources. Greater energy efficiency (not including the efficiencies associated with displacement of coal by gas) will also be more important than new renewables. Cost/benefit ratios are important for sustainability of the transition, and some energy efficiency technologies and displacement of coal by natural gas have lower cost/benefit ratios than wind power, solar power or biofuels. Money spent on the large scale deployment of wind, solar and especially biofuels would be better spent on research, development and demonstration of a broader suite of technologies that would support the energy transition, with a focus on improving the cost benefit ratios of already deployed technologies and developing alternatives. Advanced nuclear reactors, engineered geothermal systems, fossil fuel recovery coupled with CO2 sequestration and pre-combustion or post-combustion decarbonation of fossil fuels with geological CO2 sequestration are among the technologies that might be more cost effective than wind, solar or biofuels, and biofuels have serious adverse societal and environment consequences.

  3. Cooling supply system for stage 3 bucket of a gas turbine

    DOE Patents [OSTI]

    Eldrid, Sacheverel Quentin (Saratoga Springs, NY); Burns, James Lee (Schenectady, NY); Palmer, Gene David (Clifton Park, NY); Leone, Sal Albert (Scotia, NY); Drlik, Gary Joseph (Fairfield, OH); Gibler, Edward Eugene (Cincinnati, OH)

    2002-01-01T23:59:59.000Z

    In a land based gas turbine including a compressor, a combustor and turbine section including at least three stages, an improvement comprising an inlet into a third stage nozzle from the compressor for feeding cooling air from the compressor to the third stage nozzle; at least one passageway running substantially radially through each airfoil of the third stage nozzle and an associated diaphragm, into an annular space between the rotor and the diaphragm; and passageways communicating between the annular space and individual buckets of the third stage.

  4. A survey of early warning technologies

    SciTech Connect (OSTI)

    Smith, G.D.; Arlowe, H.D.; Williams, J.D.

    1995-07-01T23:59:59.000Z

    This paper presents a survey of technologies useful in providing early warning in physical security systems. Early warning is important in virtually all types of security systems whether they are used for temporary (tactical, portable, or semi-permanent) applications, border warning, fixed-site detection, or standoff surveillance detection. With the exception of the standoff surveillance detection systems, all systems discussed in this paper usually involve a moving target. The fact that a person(s) to be detected in a standoff surveillance scenario is not moving presents challenging problems and requires different applications of technology. The technologies commonly used to detect moving targets and some suggestions for detection of stationary targets are addressed in this paper.

  5. Photochemical Escape of Oxygen from Early Mars

    E-Print Network [OSTI]

    Zhao, Jinjin

    2015-01-01T23:59:59.000Z

    Photochemical escape is an important process for oxygen escape from present Mars. In this work, a 1-D Monte-Carlo Model is developed to calculate escape rates of energetic oxygen atoms produced from O2+ dissociative recombination reactions (DR) under 1, 3, 10, and 20 times present solar XUV fluxes. We found that although the overall DR rates increase with solar XUV flux almost linearly, oxygen escape rate increases from 1 to 10 times present solar XUV conditions but decreases when increasing solar XUV flux further. Analysis shows that atomic species in the upper thermosphere of early Mars increases more rapidly than O2+ when increasing XUV fluxes. While the latter is the source of energetic O atoms, the former increases the collision probability and thus decreases the escape probability of energetic O. Our results suggest that photochemical escape be a less important escape mechanism than previously thought for the loss of water and/or CO2 from early Mars.

  6. Radiotherapy for Stage II and Stage III Breast Cancer Patients With Negative Lymph Nodes After Preoperative Chemotherapy and Mastectomy

    SciTech Connect (OSTI)

    Le Scodan, Romuald, E-mail: lescodan@crh1.org [Department of Radiation Oncology, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France); Selz, Jessica [Department of Radiation Oncology, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France); Stevens, Denise [Department of Biostatistics, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France); Bollet, Marc A.; Lande, Brigitte de la; Daveau, Caroline [Department of Radiation Oncology, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France); Lerebours, Florence [Department of Medical Oncology, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France); Labib, Alain [Department of Radiation Oncology, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France); Bruant, Sarah [Department of Biostatistics, Institut Curie-Hopital Rene Huguenin, Saint-Cloud (France)

    2012-01-01T23:59:59.000Z

    Purpose: To evaluate the effect of postmastectomy radiotherapy (PMRT) in Stage II-III breast cancer patients with negative lymph nodes (pN0) after neoadjuvant chemotherapy (NAC). Patients and Materials: Of 1,054 breast cancer patients treated with NAC at our institution between 1990 and 2004, 134 had pN0 status after NAC and mastectomy. The demographic data, tumor characteristics, metastatic sites, and treatments were prospectively recorded. The effect of PMRT on locoregional recurrence-free survival and overall survival (OS) was evaluated by multivariate analysis, including known prognostic factors. Results: Of the 134 eligible patients, 78 (58.2%) received PMRT and 56 (41.8%) did not. At a median follow-up time of 91.4 months, the 5-year locoregional recurrence-free survival and OS rate was 96.2% and 88.3% with PMRT and 92.5% and 94.3% without PMRT, respectively (p = NS). The corresponding values at 10 years were 96.2% and 77.2% with PMRT and 86.8% and 87.7% without PMRT (p = NS). On multivariate analysis, PMRT had no effect on either locoregional recurrence-free survival (hazard ratio, 0.37; 95% confidence interval, 0.09-1.61; p = .18) or OS (hazard ratio, 2.06; 95% confidence interval, 0.71-6; p = .18). This remained true in the subgroups of patients with clinical Stage II or Stage III disease at diagnosis. A trend was seen toward poorer OS among patients who had not had a pathologic complete in-breast tumor response after NAC (hazard ratio, 6.65; 95% confidence interval, 0.82-54.12; p = .076). Conclusions: The results from the present retrospective study showed no increase in the risk of distant metastasis, locoregional recurrence, or death when PMRT was omitted in breast cancer patients with pN0 status after NAC and mastectomy. Whether the omission of PMRT is acceptable for these patients should be addressed prospectively.

  7. Outcomes of Stereotactic Ablative Radiotherapy in Patients With Potentially Operable Stage I Non-Small Cell Lung Cancer

    SciTech Connect (OSTI)

    Lagerwaard, Frank J., E-mail: fj.lagerwaard@vumc.nl [Department of Radiation Oncology, VU University Medical Center, Amsterdam (Netherlands); Verstegen, Naomi E.; Haasbeek, Cornelis J.A.; Slotman, Ben J. [Department of Radiation Oncology, VU University Medical Center, Amsterdam (Netherlands); Paul, Marinus A. [Department of Thoracic Surgery, VU University Medical Center, Amsterdam (Netherlands); Smit, Egbert F. [Department of Pulmonary Medicine, VU University Medical Center, Amsterdam (Netherlands); Senan, Suresh [Department of Radiation Oncology, VU University Medical Center, Amsterdam (Netherlands)

    2012-05-01T23:59:59.000Z

    Background: Approximately two-thirds of patients with early-stage non-small-cell lung cancer (NSCLC) in The Netherlands currently undergo surgical resection. As an increasing number of fit patients have elected to undergo stereotactic ablative radiotherapy (SABR) in recent years, we studied outcomes after SABR in patients with potentially operable stage I NSCLC. Methods and Materials: In an institutional prospective database collected since 2003, 25% of lung SABR cases (n = 177 patients) were found to be potentially operable when the following patients were excluded: those with (1) synchronous lung tumors or other malignancy, (2) prior high-dose radiotherapy/pneumonectomy, (3) chronic obstructive pulmonary disease with a severity score of 3-4 according to the Global initiative for Obstructive Lung Disease classification. (4) a performance score of {>=}3, and (5) other comorbidity precluding surgery. Study patients included 101 males and 76 females, with a median age of 76 years old, 60% of whom were staged as T1 and 40% of whom were T2. Median Charlson comorbidity score was 2 (range, 0-5). A SABR dose of 60 Gy was delivered using a risk-adapted scheme in 3, 5, or 8 fractions, depending on tumor size and location. Follow-up chest computed tomography scans were obtained at 3, 6, and 12 months and yearly thereafter. Results: Median follow-up was 31.5 months; and median overall survival (OS) was 61.5 months, with 1- and 3-year survival rates of 94.7% and 84.7%, respectively. OS rates at 3 years in patients with (n = 59) and without (n = 118) histological diagnosis did not differ significantly (96% versus 81%, respectively, p = 0.39). Post-SABR 30-day mortality was 0%, while predicted 30-day mortality for a lobectomy, derived using the Thoracoscore predictive model (Falcoz PE et al. J Thorac Cardiovasc Surg 2007;133:325-332), would have been 2.6%. Local control rates at 1 and 3 years were 98% and 93%, respectively. Regional and distant failure rates at 3 years were each 9.7%. Toxicity was mild, with grade {>=}3 radiation pneumonitis and rib fractures in 2% and 3%, respectively. Conclusions: Patients with potentially operable disease who underwent primary SABR had a median OS that exceeded 5 years. This finding supports ongoing randomized clinical trials comparing surgery and SABR in cases of operable stage I NSCLC.

  8. Neutrino Oscillations and the Early Universe

    E-Print Network [OSTI]

    D. P. Kirilova

    2003-12-21T23:59:59.000Z

    The observational and theoretical status of neutrino oscillations in connection with solar and atmospheric neutrino anomalies is presented in brief. The effect of neutrino oscillations on the early Universe evolution is discussed in detail. A short review is given of the standard Big Bang Nucleosynthesis and the influence of resonant and nonresonant neutrino oscillations on active neutrinos and on primordial nucleosynthesis of He-4. BBN cosmological constraints on neutrino oscillation parameters are discussed.

  9. Early Events in Ionic Liquid Radiation Chemistry

    SciTech Connect (OSTI)

    Wishart, J.F.; Cook, A.; Rimmer, R.D.; Gohdo, M.

    2010-09-14T23:59:59.000Z

    Ionic liquids are interesting and useful materials whose solvation time scales are up to thousands of times longer than in conventional solvents. The extended lifetimes of pre-solvated electrons and other energetic species in ionic liquids has profound consequences for the radiolytic product distributions and reactivity patterns. We use a newly developed, multiplexed variation of pulse-probe spectroscopy to measure the kinetics of the early dynamical and reactive events in ionic liquids.

  10. Staging Rankine Cycles Using Ammonia for OTEC Power Production

    SciTech Connect (OSTI)

    Bharathan, D.

    2011-03-01T23:59:59.000Z

    Recent focus on renewable power production has renewed interest in looking into ocean thermal energy conversion (OTEC) systems. Early studies in OTEC applicability indicate that the island of Hawaii offers a potential market for a nominal 40-MWe system. a 40-MWe system represents a large leap in the current state of OTEC technology. Lockheed Martin Inc. is currently pursuing a more realistic goal of developing a 10-MWe system under U.S. Navy funding (Lockheed 2009). It is essential that the potential risks associated with the first-of-its-kind plant should be minimized for the project's success. Every means for reducing costs must also be pursued without increasing risks. With this in mind, the potential for increasing return on the investment is assessed both in terms of effective use of the seawater resource and of reducing equipment costs.

  11. Light Water Reactor Sustainability Program Operator Performance Metrics for Control Room Modernization: A Practical Guide for Early Design Evaluation

    SciTech Connect (OSTI)

    Ronald Boring; Roger Lew; Thomas Ulrich; Jeffrey Joe

    2014-03-01T23:59:59.000Z

    As control rooms are modernized with new digital systems at nuclear power plants, it is necessary to evaluate the operator performance using these systems as part of a verification and validation process. There are no standard, predefined metrics available for assessing what is satisfactory operator interaction with new systems, especially during the early design stages of a new system. This report identifies the process and metrics for evaluating human system interfaces as part of control room modernization. The report includes background information on design and evaluation, a thorough discussion of human performance measures, and a practical example of how the process and metrics have been used as part of a turbine control system upgrade during the formative stages of design. The process and metrics are geared toward generalizability to other applications and serve as a template for utilities undertaking their own control room modernization activities.

  12. Phoebe Barnard & Marienne de Villiers Biodiversity early warning systems

    E-Print Network [OSTI]

    de Villiers, Marienne

    edited by Phoebe Barnard & Marienne de Villiers Biodiversity early warning systems South African-0-620-51837-6 Recommended citation: Barnard, P. & de Villiers, M. (eds). 2012. Biodiversity early warning systems: South

  13. SNEWS: The SuperNova Early Warning System

    E-Print Network [OSTI]

    Antonioli, P

    2004-01-01T23:59:59.000Z

    This paper provides a technical description of the SuperNova Early Warning System (SNEWS), an international network of experiments with the goal of providing an early warning of a galactic supernova.

  14. SNEWS: The SuperNova Early Warning System

    E-Print Network [OSTI]

    P. Antonioli

    2004-07-30T23:59:59.000Z

    This paper provides a technical description of the SuperNova Early Warning System (SNEWS), an international network of experiments with the goal of providing an early warning of a galactic supernova.

  15. New Report: Early Lessons Learned in Bringing SSL to Market

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy (DOE) has published a new report that documents early challenges and lessons learned in the development of the SSL market. Entitled Solid-State Lighting: Early Lessons...

  16. Increasing Creel Interview Efficiency Through Early Survey Termination

    E-Print Network [OSTI]

    Increasing Creel Interview Efficiency Through Early Survey Termination HAL R. OSBURN and MIKE G were terminated early when no angler interviews were con ducted by a specified time. Using this method, terminating

  17. Opportunities for the Early Production of Fischer-Tropsch (F...

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

    for the Early Production of Fischer-Tropsch (F-T) Fuels in the U.S. -- An Overview Opportunities for the Early Production of Fischer-Tropsch (F-T) Fuels in the U.S. -- An Overview...

  18. Deepwater Horizon Oil Spill; Draft Programmatic and Phase III Early

    E-Print Network [OSTI]

    Deepwater Horizon Oil Spill; Draft Programmatic and Phase III Early Restoration Plan of the Deepwater Horizon oil spill. The restoration alternatives are comprised of early restoration project types Addressing Injuries Resulting from the Deepwater Horizon Oil Spill (Framework Agreement). Criteria

  19. Two-step build-up of a thermoreversible polymer network: From early local to late collective dynamics

    E-Print Network [OSTI]

    H. Souguir; O. Ronsin; C. Caroli; T. Baumberger

    2015-03-05T23:59:59.000Z

    We probe the mechanisms at work in the build-up of thermoreversible gel networks, with the help of hybrid gelatin gels containing a controlled density of irreversible, covalent crosslinks (CL), which we quench below the physical gelation temperature. The detailed analysis of the dependence on covalent crosslink density of both the shear modulus and optical activity evolutions with time after quench enables us to identify two stages of the physical gelation process, separated by a temperature dependent crossover modulus: (i) an early nucleation regime during which rearrangements of the triple-helix CL play a negligible role, (ii) a late, logarithmic aging one, which is preserved, though slowed down, in the presence of irreversible CL. We show that aging is fully controlled by rearrangements and discuss the implication of our results in terms of the switch from an early, local dynamics to a late, cooperative long-range one.

  20. Land use planning and early warning systems for limiting drought

    E-Print Network [OSTI]

    Land use planning and early warning systems for limiting drought impacts and promoting recovery J response 3b. Drought early warning systems #12;Land classification based on the land's potential: soils response 3b. Drought early warning systems #12;Grassland Shrubland ­ high wind erosion Knowledge

  1. AN EARLY WARNING SYSTEM FOR AMBIENT ASSISTED LIVING

    E-Print Network [OSTI]

    Karlsson, Brynjar

    AN EARLY WARNING SYSTEM FOR AMBIENT ASSISTED LIVING June 2012 Andrea Monacchi Master of Science in Computer Science #12;#12;AN EARLY WARNING SYSTEM FOR AMBIENT ASSISTED LIVING Andrea Monacchi Master ISSN 1670-8539 #12;#12;An Early Warning System for Ambient Assisted Living by Andrea Monacchi Project

  2. A TEST OF EARTHQUAKE EARLY WARNING SYSTEM USING LOW COST

    E-Print Network [OSTI]

    Wu, Yih-Min

    A TEST OF EARTHQUAKE EARLY WARNING SYSTEM USING LOW COST ACCELEROMETER IN HUALIEN, TAIWAN Y.-M. Wu early warning system was first motivated by the Hualien offshore earthquake (Mw = 7.8) in November 15 Abstract The earthquake early warning (EEW) research group at the National Taiwan University (NTU) and one

  3. Towards Early Warning Systems Challenges, Technologies and Architecture

    E-Print Network [OSTI]

    Meier, Michael

    Towards Early Warning Systems ­ Challenges, Technologies and Architecture Martin Apel1 , Joachim early warning system (EWS) that aims at providing predictions and advice regarding security threats-scale acquisition of pertinent information by an early warning system (EWS) arises the opportunity to draw up

  4. Tsunami early warning using earthquake rupture duration Anthony Lomax1

    E-Print Network [OSTI]

    Rawlinson, Nick

    -Indonesian tsunami early warning system (GITEWS) and the West Coast and Alaska (WCATWC), and Pacific (PTWC) TsunamiTsunami early warning using earthquake rupture duration Anthony Lomax1 and Alberto Michelini2] Effective tsunami early warning for coastlines near a tsunamigenic earthquake requires notification within 5

  5. Early Warning Signals for Critical Transitions: A Generalized Modeling Approach

    E-Print Network [OSTI]

    for early warning signals that integrates multiple sources of information and data about the system throughEarly Warning Signals for Critical Transitions: A Generalized Modeling Approach Steven J. Lade a previously published fisheries model. We regard our method as complementary to existing early warning signals

  6. The Monitoring and Early Detection of Internet Worms

    E-Print Network [OSTI]

    Shenoy, Prashant

    to our society, it is necessary to set up a nation-scale worm-monitoring and early-warning system. (The to give people accurate early warning information and possible reaction time for counteractions1 The Monitoring and Early Detection of Internet Worms Cliff C. Zou, Weibo Gong, Fellow, IEEE, Don

  7. Mortality transition and differential incentives for early retirement

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Mortality transition and differential incentives for early retirement Hippolyte d'Albis Sau for early retirement; years- to-consume effect; lifetime human wealth effect We are grateful to Robert. In this article, we continue this line of inquiry by studying the differential incentives for early retirement

  8. Has the Early Retirement Trend Reversed? Joseph F. Quinn

    E-Print Network [OSTI]

    Huang, Jianyu

    Has the Early Retirement Trend Reversed? Joseph F. Quinn Department of Economics Boston College: figures 2.1 and 2.2; tables 2A.1 and 2A.2) has argued persuasively that this early retirement trend began.7 25.8 20.9 14.7 Age Source: Burkhauser and Quinn (1997: table 1), updated #12;3 The early retirement

  9. Checkpointed Early Load Retirement Nevin Kirman Meyrem Kirman Mainak Chaudhuri

    E-Print Network [OSTI]

    Sirer, Emin Gun

    Checkpointed Early Load Retirement Nevin Kirman Meyrem Kirman Mainak ChaudhuriŁ Jos´e F. Mart propose checkpointed early load retirement, a mechanism that combines register check- pointing and back-value prediction to consumers, and (3) EARly-retiring the long-latency load. This unclogs the ROB, thereby

  10. Thermionic converters for an Integrated Solar Upper Stage (ISUS)

    SciTech Connect (OSTI)

    Anderson, W.G.; Horner-Richardson, K. [Thermacore, Inc., Lancaster, PA (United States)

    1996-12-31T23:59:59.000Z

    The Integrated Solar Upper Stage (ISUS) is a solar bimodal system which combines thermal propulsion and electric power generation in a single integrated system. A thermionic converter was designed and fabricated for the ISUS system. The ISUS thermionic energy converters differ from previous designs, due to the significant changes in operating temperature prior to and during an eclipse, with the emitter temperature increasing from 1,900 K to 2,200 K, and then back again. A complete thermal and electrical model was developed for a planar diode to determine optimum operating dimensions and parameters. The model includes an overall energy balance for the diode, and changes the interelectrode gap spacing due to thermal expansion of the parts as the emitter and/or collector temperatures change. Cesium pressure can be chosen from an external liquid reservoir, an integral reservoir using cesium intercalated into graphite attached to the collector heat pipe, or optimum cesium pressure. With optimum cesium pressure, the maximum efficiency increases from 14% to 16% as the emitter temperature increases from 1,900 K to 2,200 K. The improvement in efficiency is only 2% as the emitter temperature is increased. Optimum efficiency requires an external, actively controlled liquid reservoir.

  11. Two-stage crystallization of charged colloids at low supersaturations

    E-Print Network [OSTI]

    Kai Kratzer; Axel Arnold

    2014-10-31T23:59:59.000Z

    We report simulations on the homogeneous liquid-fcc nucleation of charged colloids for both low and high contact energy values. As a precursor for crystal formation, we observe increased local order at the position where the crystal will form, but no correlations with the local density. Thus, the nucleation is driven by order fluctuations rather than density fluctuations. Our results also show that the transition involves two stages in both cases, first a transition liquid-bcc, followed by a bcc-hcp/fcc transition. Both transitions have to overcome free energy barriers, so that a spherical bcc-like cluster is formed first, in which the final fcc-like structure is nucleated mainly at the surface of the crystallite. This means that the bcc-fcc phase transition is a heterogeneous nucleation, even though we start from a homogeneous bulk liquid. The height of the bcc-hcp/fcc free energy barrier strongly depends on the contact energies of the colloids. For low contact energy this barrier is low, so that the bcc-hcp/fcc transition happens spontaneously. For the higher contact energy, the second barrier is too high to be crossed spontaneously by the colloidal system. However, it was possible to ratchet the system over the second barrier and to transform the bcc nuclei into the stable hcp/fcc phase. The transitions are dominated by the first liquid-bcc transition and can be described by Classical Nucleation Theory using an effective surface tension.

  12. Films of bacteria at interfaces: three stages of behaviour

    E-Print Network [OSTI]

    Liana Vaccari; Daniel Allan; Nima Sharifi-Mood; Aayush Singh; Robert Leheny; Kathleen Stebe

    2015-03-25T23:59:59.000Z

    Bacterial attachment to a fluid interface can lead to the formation of a film with physicochemical properties that evolve with time. We study the time evolution of interface (micro)mechanics for interfaces between oil and bacterial suspensions by following the motion of colloidal probes trapped by capillarity to determine the interface microrheology. Initially, active bacteria at and near the interface drive superdiffusive motion of the colloidal probes. Over timescales of minutes, the bacteria form a viscoelastic film which we discuss as a quasi-two-dimensional, active, glassy system. To study late stage mechanics of the film, we use pendant drop elastometry. The films, grown over tens of hours on oil drops, are expanded and compressed by changing the drop volume. For small strains, by modeling the films as 2D Hookean solids, we estimate the film elastic moduli, finding values similar to those reported in the literature for the bacteria themselves. For large strains, the films are highly hysteretic. Finally, from wrinkles formed on highly compressed drops, we estimate film bending energies. The dramatic restructuring of the interface by such robust films has broad implications, e.g. in the study of active colloids, in understanding the community dynamics of bacteria, and in applied settings including bioremediation.

  13. Seeing Sound Waves in the Early Universe

    E-Print Network [OSTI]

    Arthur Kosowsky

    1998-11-10T23:59:59.000Z

    Temperature and polarization power spectra of the cosmic microwave background can provide essentially incontrovertible evidence for coherent acoustic oscillations in the early universe. A simple model calculation demonstrates explicitly how polarization couples to velocities at the surface of last scatter and is nearly independent of gravitational or density perturbations. For coherent acoustic oscillations, peaks in the temperature and polarization power spectra are precisely interleaved. If observed, such a signal would provide strong support for initial density perturbations on scales larger than the horizon, and thus for inflation.

  14. Neutrino oscillations in the early Universe

    E-Print Network [OSTI]

    D. Kirilova; M. Chizhov

    2001-02-09T23:59:59.000Z

    We discuss the oscillations effects on neutrinos in the early Universe and update the cosmological constraints on the oscillation parameters. It is shown that sterile LOW solution to the solar neutrino problem is almost completely excluded from cosmological nucleosynthesis considerations. Two possibilities for the relaxation of this constraint are discussed: high primordial helium-4 yield and a relic lepton asymmetry present at nucleosynthesis epoch. The numerical analysis proved that Y_p=0.25 only relaxes the constraint on LOW solution, while L > 10^{-5} is capable to remove it.

  15. Nucleosynthesis in Early Neutrino Driven Winds

    SciTech Connect (OSTI)

    Hoffman, R; Fisker, J; Pruet, J; Woosley, S; Janka, H; Buras, R

    2008-01-09T23:59:59.000Z

    Two recent issues related to nucleosynthesis in early proton-rich neutrino winds are investigated. In the first part we investigate the effect of nuclear physics uncertainties on the synthesis of {sup 92}Mo and {sup 94}Mo. Based on recent experimental results, we find that the proton rich winds of the model investigated here can not be the only source of the solar abundance of {sup 92}Mo and {sup 94}Mo. In the second part we investigate the nucleosynthesis from neutron rich bubbles and show that they do not contribute to the nucleosynthesis integrated over both neutron and proton-rich bubbles and proton-rich winds.

  16. Names and Titles in Early Tibetan Records

    E-Print Network [OSTI]

    Richardson, Hugh Edward

    1985-01-01T23:59:59.000Z

    and the Myang Btsun Khri Bo, the head of a Myang principality which may have been the heritage of the great minister Myang Mang Po Rje Zhang Snang who was all­ powerful in the early d:1YS of Srong Brtsan Sgam Po and was disgraced an,1 executed in about 636... -father in power, is called Myang Mang Po Rje Zhang Snang. His family may have been awarded the status of rgyal phran for this service. Mang Po Rje is also found as part of the names of persons of special distinction from the Mgar Khu, Dba's and Cog Ro rus...

  17. Names and Titles in Early Tibetan Records

    E-Print Network [OSTI]

    Richardson, Hugh Edward

    1967-02-10T23:59:59.000Z

    of the great minister Myang Mang Po Rje Zhang Snang who was all­ powerful in the early days of Srong Brtsan Sgam Po and was disgraced and executed in about 636,10 Other personages who may have been included among the rgyal phran can be seen in documents... . ~I he third edict mentions a ~fyang rgyal phran; the great minister of Srong Brtsan Sgam Po whose father led the movement which put Srong Brtsan's grand-father in power, is called Myang Mang Po Rje Zhang Snang. His family may have been awarded...

  18. The development of early terrestrial ecosystems

    E-Print Network [OSTI]

    Selden, Paul A.; Edwards, Dianne

    1993-01-01T23:59:59.000Z

    ,575-599. Burgess, N.D. & Edwards, D. (1991). Classification of uppermost Ordovician to Lower Devonian tubular and filamentous macerals from the Anglo-Welsh Basin. Botanical Journal of the Linnean Society 106,41-66. Campbell, S.E. (1979). Soil stabilization...., Massa, D. & Boucot A J . (1982). Caradocian land plant microfossils from Libya. Geology 10.197-201. Gray, J., Theron, J.N. & Boucot, A J . (1986). Age of the Cedarberg Formation, South Africa and early land plant evolution. Geological Magazine 123...

  19. Quantum Statistical Processes in the Early Universe

    E-Print Network [OSTI]

    B. L. Hu

    1993-02-22T23:59:59.000Z

    We show how the concept of quantum open system and the methods in non-equilibrium statistical mechanics can be usefully applied to studies of quantum statistical processes in the early universe. We first sketch how noise, fluctuation, dissipation and decoherence processes arise in a wide range of cosmological problems. We then focus on the origin and nature of noise in quantum fields and spacetime dynamics. We introduce the concept of geometrodynamic noise and suggest a statistical mechanical definition of gravitational entropy. We end with a brief discussion of the theoretical appropriateness to view the physical universe as an open system.

  20. For Early Adopters | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: FinalOffers3.pdf0-45.pdf Flash2010-45.pdfFlash2011-43andPropertyFor Early Adopters For

  1. Early Station Costs Questionnaire | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny:RevisedAdvisory Board Contributions EMEMEnergyEarly Station Costs Questionnaire

  2. Evaluating and Improving the ElarmS Earthquake Early Warning Algorithm

    E-Print Network [OSTI]

    Brown, Holly Moore

    2012-01-01T23:59:59.000Z

    based earthquake early warning system for California.Introduction Earthquake early warning systems use seismican earthquake early warning system developed in California.

  3. Multi-stage microbial system for continuous hydrogen production

    DOE Patents [OSTI]

    Kosourov, Sergey; Ghirardi, Maria L.; Seibert, Michael

    2010-06-08T23:59:59.000Z

    A method of using sequential chemostat culture vessels to provide continuous H.sub.2 production, in which photosynthetic O.sub.2 evolution and H.sub.2 photoproduction are separated physically into two separate bioreactors, comprising: a) growing a microorganism culture able to continuously generate H.sub.2 by photosynthetically producing cells at about the early-to-late log state in a first photobioreactor operating as a sulfur chemostat under aerobic and/or conditions; b) continuously feeding cells from the first photobioreactor to a second photobioreactor operating under anaerobic conditions and sulfur deprivation conditions resulting from constant uptake of sulfate in the first bioreactor and a low rate of culture flow between the first and second bioreactors, for induction of hydrogenase and H.sub.2 photoproduction to allow for continuous cultivation of the microorganism's cells in the first photobioreactor and constant H.sub.2 production in the second photobioreactor, and c) H.sub.2 gas from the second photobioreactor.

  4. Characterization of early and terminal complement proteins associated with polymorphonuclear leukocytes in vitro and in vivo after spinal cord injury

    E-Print Network [OSTI]

    Nguyen, Hal X; Galvan, Manuel D; Anderson, Aileen J

    2008-01-01T23:59:59.000Z

    Characterization of early and terminal complement proteinsassociation of both early and terminal complement proteinscharacterization of early and terminal complement proteins

  5. GAISUS-1 thermionic converter for the integrated solar upper stage

    SciTech Connect (OSTI)

    Begg, L.L.; Heffernan, T.F.; Horner, M.H. [General Atomics, San Diego, CA (United States)

    1997-12-31T23:59:59.000Z

    The Integrated Solar Upper Stage (ISUS) system is a compact orbital transfer vehicle which generates thrust to boost payloads from LEO to higher orbits. It does this by collecting and concentrating solar flux into a sensible thermal storage, graphite receiver which is used to heat hydrogen propellant to temperatures of up to 2500 K. The ISUS receiver also radiates heat into an array of thermionic converters which produce electrical power. The GAISUS-1 thermionic converter is a first generation planar converter designed to produce electrical power when coupled with the ISUS receiver. GAISUS-1 will deliver over 31 W{sub e} at 1900 K. A wrought Re hotshoe accepts radiant heat from the receiver. The back side of the hotshoe forms the emitting surface of the converter. Special attention was paid to optimize the electrical and thermal losses experienced through the sleeve. Triple and single sleeve geometries were thermally modeled and evaluated, resulting in the selection of a single sleeve design. A high temperature metal/ceramic seal isolates the emitter sleeve from the collector. A Nb collector is used and is an integral part of a Nb/Na heat pipe. The heat pipe transports reject heat from the collector surface to a thermal radiator (condenser) portion of the heat pipe. The converter utilizes an integral graphite Cs reservoir. This type of reservoir automatically produces a rise in Cs pressure in response to a rise in emitter/collector temperatures. This Cs pressure feedback mechanism insures adequate Cs coverage of the emitter over a broad range of operating conditions (temperatures).

  6. Critical Dynamics in the Early Universe

    E-Print Network [OSTI]

    B. L. Hu

    1993-02-22T23:59:59.000Z

    Methods and concepts for the study of phase transitions mediated by a time-dependent order-parameter field in curved spacetimes are discussed. A practical example is the derivation of an effective (quasi-)potential for the description of `slow-roll' inflation in the early universe. We first summarize our early results on viewing the symmetry behavior of constant background fields in curved but static spacetimes as finite size effect, and the use of derivative expansions for constructing effective actions for slowly-varying background fields. We then introduce the notion of dynamical finite size effect to explain how an exponential expansion of the scale factor imparts a finite size to the system and how the symmetry behavior in de Sitter space can be understood qualitatively in this light. We reason why the exponential inflation can be described equivalently by a scale transformation, thus rendering this special class of dynamics as effectively static. Finally we show how, in this view, one can treat the class of `slow-roll' inflation as a dynamic perturbation off the effectively static class of exponential inflation and understand it as a dynamical critical phenomenon in cosmology.

  7. The Sizes of Early-type Galaxies

    E-Print Network [OSTI]

    Joachim Janz; Thorsten Lisker

    2008-11-20T23:59:59.000Z

    In this letter we present a study of the size luminosity relation of 475 early-type galaxies in the Virgo Cluster with Sloan Digital Sky Survey imaging data. The analysis of our homogeneous, model-independent data set reveals that giant and dwarf early-type galaxies do not form one common sequence in this relation. The dwarfs seem to show weak or no dependence on luminosity, and do not fall on the extension of the rather steep relation of the giants. Under the assumption that the light profile shape varies continuously with magnitude, a curved relation of size and magnitude would be expected. While the galaxies do roughly follow this trend overall, we find that the dwarf galaxies are significantly larger and the low-luminosity giants are significantly smaller than what is predicted. We come to the conclusion that in this scaling relation there is not one common sequence from dwarfs to giants, but a dichotomy which can not be resolved by varying profile shapes. The comparison of our data to a semi-analytic model supports the idea of a physical origin of this dichotomy.

  8. Synchrotron radiation and beam tube vacuum in a Very Large Hadron Collider; Stage 1 VLHC

    E-Print Network [OSTI]

    Pivi, M.; Turner, W.C.

    2001-01-01T23:59:59.000Z

    Synchrotron Radiation and Beam Tube Vacuum in a Very Large94720 Abstract Synchrotron radiation induced photodesorptionvacuum. The synchrotron radiation power in the Stage 1 VLHC,

  9. Government Leasing Policy and the Multi-Stage Investment Timing Game in Offshore Petroleum Production

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia; Leighty, Wayne

    2007-01-01T23:59:59.000Z

    multi-stage investment timing decisions in oil explorationthe investment and production timing decisions in oil supplyoil production decisions rather than exploration and development investments,

  10. Solving multi-stage stochastic mixed integer linear programs by the ...

    E-Print Network [OSTI]

    2012-01-26T23:59:59.000Z

    In this article, we describe the di cult points in multi-stage SMILP, and an ap- ..... Following (18) (19), the approximation quality decreases as the backward ...

  11. CORN DEVELOPMENT AND KEY GROWTH STAGES Brent Bean and Carl Patrick, Extension Agronomist and Entomologist

    E-Print Network [OSTI]

    Mukhtar, Saqib

    CORN DEVELOPMENT AND KEY GROWTH STAGES Brent Bean and Carl Patrick, Extension Agronomist to have the soil profile full of water prior to tas

  12. Government Leasing Policy and the Multi-Stage Investment Timing Game in Offshore Petroleum Production

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia; Leighty, Wayne

    2007-01-01T23:59:59.000Z

    Prorationing of crude oil production. The American Economicreal options theory. Oil production is a multi-stage processthe theory to the oil production process that account for

  13. Two-Stage Stochastic Programming Involving CVaR with an ...

    E-Print Network [OSTI]

    Birbil

    2010-04-07T23:59:59.000Z

    Page 1 ... framework of two-stage stochastic program- ming is a fairly recent research topic (Ahmed, 2004; 2006; Schultz and Tiedemann, 2006; Fábián, 2008

  14. Impact of Consolidation Radiation Therapy in Stage III-IV Diffuse Large B-cell Lymphoma With Negative Post-Chemotherapy Radiologic Imaging

    SciTech Connect (OSTI)

    Dorth, Jennifer A., E-mail: jennifer.dorth@duke.edu [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Prosnitz, Leonard R. [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States)] [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States); Broadwater, Gloria [Cancer Statistical Center, Duke University Medical Center, Durham, North Carolina (United States)] [Cancer Statistical Center, Duke University Medical Center, Durham, North Carolina (United States); Diehl, Louis F.; Beaven, Anne W. [Department of Medicine, Division of Medical Oncology, Duke University Medical Center, Durham, North Carolina (United States)] [Department of Medicine, Division of Medical Oncology, Duke University Medical Center, Durham, North Carolina (United States); Coleman, R. Edward [Department of Radiology, Division of Nuclear Medicine, Duke University Medical Center, Durham, North Carolina (United States)] [Department of Radiology, Division of Nuclear Medicine, Duke University Medical Center, Durham, North Carolina (United States); Kelsey, Chris R. [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States)] [Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina (United States)

    2012-11-01T23:59:59.000Z

    Purpose: While consolidation radiation therapy (i.e., RT administered after chemotherapy) is routine treatment for patients with early-stage diffuse large B-cell lymphoma (DLBCL), the role of consolidation RT in stage III-IV DLBCL is controversial. Methods and Materials: Cases of patients with stage III-IV DLBCL treated from 1991 to 2009 at Duke University, who achieved a complete response to chemotherapy were reviewed. Clinical outcomes were calculated using the Kaplan-Meier method and were compared between patients who did and did not receive RT, using the log-rank test. A multivariate analysis was performed using Cox proportional hazards model. Results: Seventy-nine patients were identified. Chemotherapy (median, 6 cycles) consisted of anti-CD20 antibody rituximab combined with cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP; 65%); cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP; 22%); or other (13%). Post-chemotherapy imaging consisted of positron emission tomography (PET)/computed tomography (CT) (73%); gallium with CT (14%); or CT only (13%). Consolidation RT (median, 25 Gy) was given to involved sites of disease in 38 (48%) patients. Receipt of consolidation RT was associated with improved in-field control (92% vs. 69%, respectively, p = 0.028) and event-free survival (85% vs. 65%, respectively, p = 0.014) but no difference in overall survival (85% vs. 78%, respectively, p = 0.15) when compared to patients who did not receive consolidation RT. On multivariate analysis, no RT was predictive of increased risk of in-field failure (hazard ratio [HR], 8.01, p = 0.014) and worse event-free survival (HR, 4.3, p = 0.014). Conclusions: Patients with stage III-IV DLBCL who achieve negative post-chemotherapy imaging have improved in-field control and event-free survival with low-dose consolidation RT.

  15. First report of a permanent breast {sup 103}Pd seed implant as adjuvant radiation treatment for early-stage breast cancer

    SciTech Connect (OSTI)

    Pignol, Jean-Philippe [Department of Radiation Oncology, Sunnybrook and Women's Health Sciences Centre, University of Toronto, Toronto, Ontario (Canada)]. E-mail: Jean-Philippe.Pignol@sw.ca; Keller, Brian [Department of Radiation Oncology, Sunnybrook and Women's Health Sciences Centre, University of Toronto, Toronto, Ontario (Canada); Rakovitch, Eileen [Department of Radiation Oncology, Sunnybrook and Women's Health Sciences Centre, University of Toronto, Toronto, Ontario (Canada); Sankreacha, Raxa [Department of Radiation Oncology, Sunnybrook and Women's Health Sciences Centre, University of Toronto, Toronto, Ontario (Canada); Easton, Harry [Department of Radiation Oncology, Sunnybrook and Women's Health Sciences Centre, University of Toronto, Toronto, Ontario (Canada); Que, William [Department of Radiation Oncology, Sunnybrook and Women's Health Sciences Centre, University of Toronto, Toronto, Ontario (Canada)

    2006-01-01T23:59:59.000Z

    Purpose: A new technique of adjuvant partial breast irradiation using {sup 103}Pd permanent breast seed implants (PBSI) is presented. The procedure is performed in a single 1-hour session under local anesthesia. Methods and Materials: Patients referred to a single institution for adjuvant radiotherapy after lumpectomy for an infiltrating ductal carcinoma {<=}3 cm in diameter, surgical margin {>=}2 mm, no extensive in situ carcinoma, no lymphovascular invasion, and minimal or negative lymph node involvement were offered a PBSI. Results: Between May and December 2004, 31 eligible patients underwent CT scan and ultrasound simulations assessing PBSI feasibility. Fifteen were excluded because of feasibility issues, and 16 received PBSI. A minimal peripheral dose of 90 Gy was prescribed to the planning target volume corresponding to the clinical target volume identified on the CT scan plus a margin of 1 cm. The procedure was well tolerated; 56% of the patients reported no pain during the procedure, and 46% of the patients developed National Cancer Institute Common Toxicity Criteria Grade 1 acute reaction. None experienced toxicity Grade 2 or 3. Conclusions: Permanent breast seed implantation seems feasible and well tolerated on these preliminary clinical data and represents an ultimate step in the reduction of treatment fraction for partial breast irradiation.

  16. Computer & Geosciences, Special Issue "Geoscientific Visualization", 1, 2000 (in press) Visualization in an Early Stage of the Problem Solving Process in GIS

    E-Print Network [OSTI]

    Egenhofer, Max J.

    Computer & Geosciences, Special Issue "Geoscientific Visualization", 1, 2000 (in press) -1 monika.sester@ifp.uni-stuttgart.de Abstract Methods of user-computer interaction have remained largely for more complex task. To improve the interaction between user and computer we propose a concept

  17. The -interaction: A study of early stages of phase separation in a Fe-20%Cr-6%Al-0.5%Ti alloy

    E-Print Network [OSTI]

    Cambridge, University of

    of nuclear reactors such as sodium fast reactors (SFR), very-high temperature reactors (VHTR), super critical-cooled fast reactor #12;Material Chemical composition of PM 2000 PM 2000tm is a commercial Fe-base ODS alloy water reactors (SCWR), or other GEN IV nuclear energy systems. oFor such applications, these alloys face

  18. Women & early-stage entrepreneurship : examining the impact of the venture funding crisis on male and female-led technology start-ups

    E-Print Network [OSTI]

    Swaminathan, Shuba

    2010-01-01T23:59:59.000Z

    Women in technology have always been a minority and the number of women who are founders of venture backed start-ups is even lower. This research empirically investigates venture capital funding received by entrepreneurs ...

  19. This is to request funds to support early-stage research and presentation on the question of long-term decisionmaking. The

    E-Print Network [OSTI]

    Edwards, Paul N.

    are: behavioral ecology, environmental psychology, neurobiology, business history, and finance. Within instance, refers to time scales that are i) required to deal with critical environmental problems Sprinz of the Potsdam Institute for Climate Impact Research in Germany, drew considerable interest

  20. Vision 20/20: The role of Raman spectroscopy in early stage cancer detection and feasibility for application in radiation therapy response assessment

    SciTech Connect (OSTI)

    Devpura, Suneetha, E-mail: sdevpur1@hfhs.org; Barton, Kenneth N.; Brown, Stephen L.; Siddiqui, Farzan; Chetty, Indrin J. [Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan 48202 (United States)] [Department of Radiation Oncology, Henry Ford Hospital, Detroit, Michigan 48202 (United States); Palyvoda, Olena [College of Engineering, Wayne State University, Detroit, Michigan 48202 (United States)] [College of Engineering, Wayne State University, Detroit, Michigan 48202 (United States); Kalkanis, Steven [Department of Neurosurgery, Henry Ford Hospital, Detroit, Michigan 48202 (United States)] [Department of Neurosurgery, Henry Ford Hospital, Detroit, Michigan 48202 (United States); Naik, Vaman M. [Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, Michigan 48128 (United States)] [Department of Natural Sciences, University of Michigan-Dearborn, Dearborn, Michigan 48128 (United States); Naik, Ratna [Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201 (United States)] [Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201 (United States)

    2014-05-15T23:59:59.000Z

    Raman spectroscopy is an optical technique capable of identifying chemical constituents of a sample by their unique set of molecular vibrations. Research on the applicability of Raman spectroscopy in the differentiation of cancerous versus normal tissues has been ongoing for many years, and has yielded successful results in the context of prostate, breast, brain, skin, and head and neck cancers as well as pediatric tumors. Recently, much effort has been invested on developing noninvasive “Raman” probes to provide real-time diagnosis of potentially cancerous tumors. In this regard, it is feasible that the Raman technique might one day be used to provide rapid, minimally invasive real-time diagnosis of tumors in patients. Raman spectroscopy is relatively new to the field of radiation therapy. Recent work involving cell lines has shown that the Raman technique is able to identify proteins and other markers affected by radiation therapy. Although this work is preliminary, one could ask whether or not the Raman technique might be used to identify molecular markers that predict radiation response. This paper provides a brief review of Raman spectroscopic investigations in cancer detection, benefits and limitations of this method, advances in instrument development, and also preliminary studies related to the application of this technology in radiation therapy response assessment.

  1. Addressing the problem with natural ventilation : producing a guide for designers to integrate natural ventilation into the early stages of building design

    E-Print Network [OSTI]

    Fennessy, Kristian (Kristian M.)

    2014-01-01T23:59:59.000Z

    Currently, the United States alone is responsible for approximately twenty percent of the world's total energy consumption. This consumption is equivalent to roughly 100 quadrillion Btu of energy, or in plainer terms, over ...

  2. Ab initio studies of early stages of AlN and GaN growth on 4H-SiC

    SciTech Connect (OSTI)

    Wachowicz, E.; K?dro?, N. [Institute of Experimental Physics, University of Wroclaw, PL-50-204 Wroclaw (Poland); Sznajder, M. [Institute of Physics, University of Rzeszow, PL -35-959 Rzeszow, Poland and Faculty of Physics, University of Warsaw, PL-00-681 Warsaw (Poland); Majewski, J. A. [Faculty of Physics, University of Warsaw, PL-00-681 Warsaw (Poland)

    2013-12-04T23:59:59.000Z

    Processes of aluminum and gallium adsorption on Si- and C-terminated 4H-SiC(0001) surfaces have been studied within the DFT framework. Al and Ga coverages ranging from a submonolayer to one monolayer have been considered. The results show that Al binds more strongly to both surfaces than Ga and the binding of both metals is stronger to the C-terminated than to Si-terminated surface of SiC. The lateral lattice sites occupied by Al and Ga atoms at one monolayer are different and it is due to a different charge transfer from metal to the substrate.

  3. PROBING THE EARLIEST STAGE OF PROTOSTELLAR EVOLUTION-BARNARD 1-bN AND BARNARD 1-bS

    SciTech Connect (OSTI)

    Huang, Yun-Hsin [Institute of Astrophysics, National Taiwan University, Taipei 10617, Taiwan, ROC (China)] [Institute of Astrophysics, National Taiwan University, Taipei 10617, Taiwan, ROC (China); Hirano, Naomi, E-mail: yunhsin@asiaa.sinica.edu.tw [Academia Sinica, Institute of Astronomy and Astrophysics, P.O. Box 23141, Taipei 106, Taiwan, ROC (China)] [Academia Sinica, Institute of Astronomy and Astrophysics, P.O. Box 23141, Taipei 106, Taiwan, ROC (China)

    2013-04-01T23:59:59.000Z

    Two submm/mm sources in the Barnard 1b (B1-b) core, B1-bN and B1-bS, have been observed with the Submillimeter Array (SMA) and the Submillimeter Telescope (SMT). The 1.1 mm continuum map obtained with the SMA reveals that the two sources contain spatially compact components, suggesting that they harbor protostars. The N{sub 2}D{sup +} and N{sub 2}H{sup +} J = 3-2 maps were obtained by combining the SMA and SMT data. The N{sub 2}D{sup +} map clearly shows two peaks at the continuum positions. The N{sub 2}H{sup +} map also peaks at the continuum positions, but is more dominated by the spatially extended component. The N{sub 2}D{sup +}/N{sub 2}H{sup +} ratio was estimated to be {approx}0.2 at the positions of both B1-bN and B1-bS. The derived N{sub 2}D{sup +}/N{sub 2}H{sup +} ratio is comparable to those of the prestellar cores in the late evolutionary stage and the class 0 protostars in the early evolutionary stage. Although B1-bN is bright in N{sub 2}H{sup +} and N{sub 2}D{sup +}, this source was barely seen in H{sup 13}CO{sup +}. This implies that the depletion of carbon-bearing molecules is significant in B1-bN. The chemical property suggests that B1-bN is in the earlier evolutionary stage as compared to B1-bS with the H{sup 13}CO{sup +} counterpart. The N{sub 2}H{sup +} and N{sub 2}D{sup +} lines show that the radial velocities of the two sources are different by {approx}0.9 km s{sup -1}. However, the velocity pattern along the line through B1-bN and B1-bS suggests that these two sources were not formed out of a single rotating cloud. It is likely that the B1-b core consists of two velocity components, each of which harbors a very young source.

  4. Performance evaluation of two-stage fuel cycle from SFR to PWR

    SciTech Connect (OSTI)

    Fei, T.; Hoffman, E.A.; Kim, T.K.; Taiwo, T.A. [Nuclear Engineering Division Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL (United States)

    2013-07-01T23:59:59.000Z

    One potential fuel cycle option being considered is a two-stage fuel cycle system involving the continuous recycle of transuranics in a fast reactor and the use of bred plutonium in a thermal reactor. The first stage is a Sodium-cooled Fast Reactor (SFR) fuel cycle with metallic U-TRU-Zr fuel. The SFRs need to have a breeding ratio greater than 1.0 in order to produce fissile material for use in the second stage. The second stage is a PWR fuel cycle with uranium and plutonium mixed oxide fuel based on the design and performance of the current state-of-the-art commercial PWRs with an average discharge burnup of 50 MWd/kgHM. This paper evaluates the possibility of this fuel cycle option and discusses its fuel cycle performance characteristics. The study focuses on an equilibrium stage of the fuel cycle. Results indicate that, in order to avoid a positive coolant void reactivity feedback in the stage-2 PWR, the reactor requires high quality of plutonium from the first stage and minor actinides in the discharge fuel of the PWR needs to be separated and sent back to the stage-1 SFR. The electricity-sharing ratio between the 2 stages is 87.0% (SFR) to 13.0% (PWR) for a TRU inventory ratio (the mass of TRU in the discharge fuel divided by the mass of TRU in the fresh fuel) of 1.06. A sensitivity study indicated that by increasing the TRU inventory ratio to 1.13, The electricity generation fraction of stage-2 PWR is increased to 28.9%. The two-stage fuel cycle system considered in this study was found to provide a high uranium utilization (>80%). (authors)

  5. Early Neutrino Data in the NO$\

    SciTech Connect (OSTI)

    Betancourt, M.; /Minnesota U.

    2011-09-01T23:59:59.000Z

    NO{nu}A is a long-baseline neutrino experiment using an off-axis neutrino beam produced by the NuMI neutrino beam at Fermilab. The NO{nu}A experiment will study neutrino {nu}{sub {mu}} {yields} {nu}{sub e} oscillations. A short term goal for the NO{nu}A experiment is to develop a good understanding of the response of the detector. These studies are being carried out with the full Near Detector installed on the surface (NDOS) at Fermilab. This detector is currently running and will acquire neutrino data for a year. Using beam muon neutrino data, quasi-elastic charged-current interactions will be studied. Status of the NDOS running and early data will be shown.

  6. Strategy for early SUSY searches at ATLAS

    E-Print Network [OSTI]

    Shimpei Yamamoto; for the ATLAS collaboration

    2008-01-08T23:59:59.000Z

    The CERN Large Hadron Collider (LHC) is scheduled to commence operation in 2008 and inclusive searches for supersymmetry (SUSY) will be one of our primary tasks in the first days of LHC operation. It is certain that the final state of multijets + missing transverse energy will provide a superior performance in SUSY searches. Strategies to understand the instrumental background and to understand the Standard Model (SM) background are still under development and are urgent issues for the coming data. We describe the strategy for early SUSY searches at the ATLAS experiment using the fist data corresponding to an integrated luminosity up to 1fb^-1, which comprises much progress in the data-driven technique for the SM background estimations.

  7. Preserving Alaska's early Cold War legacy.

    SciTech Connect (OSTI)

    Hoffecker, J.; Whorton, M.

    1999-03-08T23:59:59.000Z

    The US Air Force owns and operates numerous facilities that were constructed during the Cold War era. The end of the Cold War prompted many changes in the operation of these properties: missions changed, facilities were modified, and entire bases were closed or realigned. The widespread downsizing of the US military stimulated concern over the potential loss of properties that had acquired historical value in the context of the Cold War. In response, the US Department of Defense in 1991 initiated a broad effort to inventory properties of this era. US Air Force installations in Alaska were in the forefront of these evaluations because of the role of the Cold War in the state's development and history and the high interest on the part of the Alaska State Historic Preservation Officer (SHPO) in these properties. The 611th Air Support Group (611 ASG) owns many of Alaska's early Cold War properties, most were associated with strategic air defense. The 611 ASG determined that three systems it operates, which were all part of the integrated defense against Soviet nuclear strategic bomber threat, were eligible for the National Register of Historic Places (NRHP) and would require treatment as historic properties. These systems include the Aircraft Control and Warning (AC&W) System, the Distant Early Warning (DEW) Line, and Forward Operating Bases (FOBs). As part of a massive cleanup operation, Clean Sweep, the 611 ASG plans to demolish many of the properties associated with these systems. To mitigate the effects of demolition, the 611 ASG negotiated agreements on the system level (e.g., the DEW Line) with the Alaska SHPO to document the history and architectural/engineering features associated with these properties. This system approach allowed the US Air Force to mitigate effects on many individual properties in a more cost-effective and efficient manner.

  8. Climate Change in Lowland Central America During the Late Deglacial and Early Holocene

    SciTech Connect (OSTI)

    Hillesheim, M B; Hodell, D A; Leyden, B W; Brenner, M; Curtis, J H; Anselmetti, F S; Ariztegui, D; Buck, D G; Guilderson, T P; Rosenmeier, M F; Schnurrenberger, D W

    2005-02-08T23:59:59.000Z

    The transition from arid glacial to moist early Holocene conditions represented a profound change in northern lowland Neotropical climate. Here we report a detailed record of changes in moisture availability during the latter part of this transition ({approx}11,250 to 7,500 cal yr BP) inferred from sediment cores retrieved in Lake Peten Itza, northern Guatemala. Pollen assemblages demonstrate that a mesic forest had been largely established by {approx}11,250 cal yr BP, but sediment properties indicate that lake level was more than 35 m below modern stage. From 11,250 to 10,350 cal yr BP, during the Preboreal period, lithologic changes in sediments from deep-water cores (>50 m below modern water level) indicate several wet-dry cycles that suggest distinct changes in effective moisture. Four dry events (designated PBE1-4) occurred at 11,200, 10,900, 10,700, and 10,400 cal yr BP and correlate with similar variability observed in the Cariaco Basin titanium record and glacial meltwater pulses into the Gulf of Mexico. After 10,350 cal yr BP, multiple sediment proxies suggest a shift to a more persistently moist early Holocene climate. Comparison of results from Lake Peten Itza with other records from the circum-Caribbean demonstrates a coherent climate response during the entire span of our record. Furthermore, lowland Neotropical climate during the late deglacial and early Holocene period appears to be tightly linked to climate change in the high-latitude North Atlantic. We speculate that the observed changes in lowland Neotropical precipitation were related to the intensity of the annual cycle and associated displacements in the mean latitudinal position of the Intertropical Convergence Zone and Azores-Bermuda high-pressure system. This mechanism operated on millennial-to-submillennial timescales and may have responded to changes in solar radiation, glacial meltwater, North Atlantic sea ice, and the Atlantic meridional overturning circulation (MOC).

  9. Generation of high peak power pulse using 2 stage erbium-doped fiber amplifier

    E-Print Network [OSTI]

    Lee, Kyung-Woo

    2000-01-01T23:59:59.000Z

    This thesis presents the results obtained from generation of high repetition rate, high power output pulse using an erbium-doped fiber amplifier (EDFA). Two stage amplification was employed. The first stage setup used 980nm pump laser to pump erbium...

  10. MANUFACTURING COMPLEXITY EVALUATION AT THE DESIGN STAGE FOR BOTH MACHINING AND LAYERED MANUFACTURING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and an additive process. Manufacturability indexes are calculated at the tool design stage, these indexes provide an accurate view of which areas of the tool will advantageously be machined or manufactured by an additiveMANUFACTURING COMPLEXITY EVALUATION AT THE DESIGN STAGE FOR BOTH MACHINING AND LAYERED

  11. Design Considerations, Installation and Operation of the Two-Stage Parallel Flow Absorption Chiller

    E-Print Network [OSTI]

    Hufford, P. E.

    1984-01-01T23:59:59.000Z

    combustion engines, or process flow to provide the elergy to the first stage generator. There are a nmber of installations currently opera- ting in South,zrn California where the exhaust from gas turbines is being taken directly into the two- stage...

  12. Method and apparatus for advanced staged combustion utilizing forced internal recirculation

    DOE Patents [OSTI]

    Rabovitser, Iosif K.; Knight, Richard A.; Cygan, David F.; Nester, Serguei; Abbasi, Hamid A.

    2003-12-16T23:59:59.000Z

    A method and apparatus for combustion of a fuel in which a first-stage fuel and a first-stage oxidant are introduced into a combustion chamber and ignited, forming a primary combustion zone. At least about 5% of the total heat output produced by combustion of the first-stage fuel and the first-stage oxidant is removed from the primary combustion zone, forming cooled first-stage combustion products. A portion of the cooled first-stage combustion products from a downstream region of the primary combustion zone is recirculated to an upstream region of primary combustion zone. A second-stage fuel is introduced into the combustion chamber downstream of the primary combustion zone and ignited, forming a secondary combustion zone. At least about 5% of the heat from the secondary combustion zone is removed. In accordance with one embodiment, a third-stage oxidant is introduced into the combustion chamber downstream of the secondary combustion zone, forming a tertiary combustion zone.

  13. Hydrogen production from cellulose in a two-stage process combining fermentation and electrohydrogenesis

    E-Print Network [OSTI]

    primarily of: acetic, lactic, succinic, and formic acids and ethanol. An additional 800 Ć 290 mL H2/gHydrogen production from cellulose in a two-stage process combining fermentation Electrolysis cell Fermentation Lignocellulose a b s t r a c t A two-stage dark-fermentation

  14. Follow-up Report on Possible Contamination of the COS Grating Test Facility from Klinger Stages

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    Follow-up Report on Possible Contamination of the COS Grating Test Facility from Klinger Stages Contamination of the Approved: COS Grating Test Facility from Klinger Stages Size Code Indent No. Document No Astronomy Initial Release Follow-up Report on Possible Contamination of the COS Grating Test Facility from

  15. DECENTRALIZED INVENTORY CONTROL IN A TWO-STAGE CAPACITATED SUPPLY CHAIN

    E-Print Network [OSTI]

    Karaesmen, Fikri

    DECENTRALIZED INVENTORY CONTROL IN A TWO-STAGE CAPACITATED SUPPLY CHAIN Zied Jema¨i and Fikri@ku.edu.tr Revised Version: July 2005 #12;Decentralized Inventory Control in a Two-Stage Capacitated Supply Chain base stock policies for inventory replenishment. All unsatisfied demand is backlogged and the customer

  16. From "Stages" of Business Growth to a Dynamic States Model of Entrepreneurial Growth and Change

    E-Print Network [OSTI]

    Mottram, Nigel

    From "Stages" of Business Growth to a Dynamic States Model of Entrepreneurial Growth and Change and Gumpert, 1985), and virtually all economic models of business creation follow firm birth with firm growth models of new business growth assume a limited number of distinct stages through #12;3 which businesses

  17. Modeling and Analysis of Stage Machinery Control Systems by Timed Colored Petri Nets

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Modeling and Analysis of Stage Machinery Control Systems by Timed Colored Petri Nets Hehua Zhang, is critical to the correctness of a system. Petri nets (PN) have been proven to be a powerful modeling tool Nets (TCPN) are proposed to model and analyze a PLC-based stage machinery control system1

  18. An exploration of the stages of change model in a group treatment program for male batterers

    E-Print Network [OSTI]

    Wells, Robert Davis

    2005-02-17T23:59:59.000Z

    in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2004 Major Subject: Counseling Psychology AN EXPLORATION OF THE STAGES OF CHANGE MODEL IN A GROUP TREATMENT PROGRAM...) __________________________ Michael R. Benz (Head of Department) December 2004 Major Subject: Counseling Psychology iii ABSTRACT An Exploration of the Stages of Change Model in a Group Treatment Program for Male Batterers. (December 2004...

  19. Romisch, W.; Schultz, R. Decomposition of a Multi-Stage Stochastic Program for Power Dispatch

    E-Print Network [OSTI]

    Römisch, Werner

    -stage stochastic program for nding a cost-optimal dispatch of electric power in a power system comprising thermal for the power system and a proper modelling of the stochastic power demand. The present paper widens the scope develop a multi-stage stochastic program for the optimal dispatch of electric power under uncertain demand

  20. Sorghum Development and Key Growth Stages Brent Bean and Carl Patrick, Extension Agronomist and Entomologist

    E-Print Network [OSTI]

    Mukhtar, Saqib

    Sorghum Development and Key Growth Stages Brent Bean and Carl Patrick, Extension Agronomist the length of the peduncle. ! Maximum water use occurs at this stage. Crop will respond vary favorably the fingers. ! Three-fourths of grain dry weight has accumulated. ! Water stress during grain fill may cause

  1. Science College and Programme Office 2 Staff with responsibility for Stage 1 students 4

    E-Print Network [OSTI]

    Contents Science College and Programme Office 2 Map 3 Staff with responsibility for Stage 1 Science Undergraduate Degree Programmes 12 Module Level Restrictions by Stage 13 Information on Module Grades, Late/Absent from Exam, Degree Classification 14 Repeats and Resits in Undergraduate Science

  2. Multi-stage linear slot virtual impactor for concentration of bioaerosols

    E-Print Network [OSTI]

    Conerly, Shawn Charles

    2006-08-16T23:59:59.000Z

    in parallel for the first stage with the designed dimensions of 87 mm (3.4Â?) for the throat length, 0.305 mm (.012Â?) for the accelerator throat width, and 0.457 mm (.018Â?) for the receiver throat width. The second stage contained a single unit...

  3. Sample Size Formulae for Two-Stage Randomized Trials with Survival Outcomes

    E-Print Network [OSTI]

    Murphy, Susan A.

    ), for an example in the treatment of alcohol dependence, in continuing care for drug abuse, and in criminology.S.A. Abstract Two-stage randomized trials are growing in importance in developing adaptive treatment strategies, i.e., treatment policies or dynamic treatment regimes. Usu- ally the first stage involves

  4. Onion ipmPIPE -Diagnostic Pocket Series Bulb Growth Stages of Onion (Allium cepa L.)

    E-Print Network [OSTI]

    Pappu, Hanu R.

    Onion ipmPIPE - Diagnostic Pocket Series Bulb Growth Stages of Onion (Allium cepa L.) Fig 1 Fig 2 Fig 3 Fig 4 Fig 5 Fig 6 Fig 7 Fig 8 Allium Type: Fresh Market and Storage Onion Both pre- and post-bulb planting (seeds, transplants, sets). Pre-Bulb Growth Stages 1 ­ radical and flag leaf emergence (10-30 days

  5. Catalytic two-stage coal liquefaction process having improved nitrogen removal

    DOE Patents [OSTI]

    Comolli, Alfred G. (Yardley, PA)

    1991-01-01T23:59:59.000Z

    A process for catalytic multi-stage hydrogenation and liquefaction of coal to produce high yields of low-boiling hydrocarbon liquids containing low concentrations of nitogen compounds. First stage catalytic reaction conditions are 700.degree.-800.degree. F. temperature, 1500-3500 psig hydrogen partial pressure, with the space velocity maintained in a critical range of 10-40 lb coal/hr ft.sup.3 catalyst settled volume. The first stage catalyst has 0.3-1.2 cc/gm total pore volume with at least 25% of the pore volume in pores having diameters of 200-2000 Angstroms. Second stage reaction conditions are 760.degree.-870.degree. F. temperature with space velocity exceeding that in the first stage reactor, so as to achieve increased hydrogenation yield of low-boiling hydrocarbon liquid products having at least 75% removal of nitrogen compounds from the coal-derived liquid products.

  6. High Resolution RANS NLH Study of Stage 67 Tip Injection Physics

    SciTech Connect (OSTI)

    Matheson, Michael A [ORNL

    2014-01-01T23:59:59.000Z

    Numerical prediction of the Stage 67 transonic fan stage employing wall jet tip injection flow control and study of the physical mechanisms leading to stall suppression and stability enhancement afforded by endwall recirculation/injection is the focus of this paper. Reynolds averaged Navier-Stokes computations were used to perform detailed analysis of the Stage 67 configuration experimentally tested at NASA s Glenn Research Center in 2004. Time varying prediction of the stage plus recirculation and injection flowpath were performed utilizing the Nonlinear Harmonic approach. Significantly higher grid resolution per passage was achieved than what has been generally employed in prior reported numerical studies of spike stall phenomena in transonic compressors. This paper focuses on characterizing the physics of spike stall embryonic stage phenomena and the impact of tip injection, resulting in experimentally and numerically demonstrated stall suppression

  7. HI in Low-Luminosity Early-Type Galaxies

    E-Print Network [OSTI]

    Tom Oosterloo; Raffaella Morganti; Elaine Sadler

    1998-09-07T23:59:59.000Z

    We discuss the properties of the HI in low-luminosity early-type galaxies. The morphology of the HI is more regular than that of the HI in many more-luminous early-type galaxies. The HI is always distributed in a disk and is more centrally concentrated. The central HI surface densities are higher than in luminous early-type galaxies and are high enough for star formation to occur.

  8. ares-i upper stage: Topics by E-print Network

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

    from relativistic heavy-ion collisions experiments. At such early times the systems is still not locally equilibrated. Another source of deviations from local...

  9. An efficient algorithm for the earliness-tardiness scheduling problem

    E-Print Network [OSTI]

    Francis Sourd

    2005-09-07T23:59:59.000Z

    Sep 7, 2005 ... An efficient algorithm for the earliness-tardiness scheduling problem. Francis Sourd (Francis.Sourd ***at*** lip6.fr) Safia Kedad-Sidhoum (Safia.

  10. adenovirus early gene: Topics by E-print Network

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

    of Kupffer cell activation and viral gene expression in early liver toxicity after infusion of recombinant adenovirus vectors CiteSeer Summary: Systemic application of...

  11. adenovirus early antigens: Topics by E-print Network

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

    of Kupffer cell activation and viral gene expression in early liver toxicity after infusion of recombinant adenovirus vectors CiteSeer Summary: Systemic application of...

  12. Economy and Rhetoric of Exchange in Early Modern Spain

    E-Print Network [OSTI]

    Ruiz, Eduardo German

    2010-01-01T23:59:59.000Z

    Elliott, J. H. Imperial Spain 1469-1716. London: Penguin,2002. ---. Spain and its World 1500-1700. New Haven andin Early Seventeenth- Century Spain. Lewisburg: Bucknell UP,

  13. act early career: Topics by E-print Network

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

    Research Right: Early Career Funding Opportunities and UNL Resources to Help You Secure Funding University of Nebraska-Lincoln Office of Research and Economic Development...

  14. Early science runs prepare Sequoia for national security missions...

    National Nuclear Security Administration (NNSA)

    Early science runs prepare Sequoia for national security missions | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the...

  15. Fission track evidence for widespread early to Middle miocene...

    Open Energy Info (EERE)

    and Range province Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Proceedings: Fission track evidence for widespread early to Middle miocene...

  16. Water volume okay; early runoff leads to dry year declaration

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

    Water-volume-okay-early-runoff-leads-to-dry-year-declaration Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives...

  17. Protein Structure Could Lead to Better Treatments for HIV, Early...

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

    early-aging diseases and redesign AIDS medications to avoid side effects such as diabetes. The research was carried out at the Southeastern Regional Collaborative Access Team...

  18. Randomized Controlled Trial of Forward-Planned Intensity Modulated Radiotherapy for Early Breast Cancer: Interim Results at 2 Years

    SciTech Connect (OSTI)

    Barnett, Gillian C. [Department of Oncology, University of Cambridge, Cambridge University Hospitals, National Health Service Foundation Trust, Cambridge (United Kingdom); Wilkinson, Jennifer S.; Moody, Anne M.; Wilson, Charles B.; Twyman, Nicola [Oncology Centre, Cambridge University Hospitals, National Health Services Foundation Trust, Cambridge (United Kingdom); Wishart, Gordon C. [Cambridge Breast Unit, Addenbrooke's Hospital, Cambridge (United Kingdom); Burnet, Neil G. [Department of Oncology, University of Cambridge, Cambridge University Hospitals, National Health Service Foundation Trust, Cambridge (United Kingdom); Coles, Charlotte E., E-mail: charlotte.coles@addenbrookes.nhs.uk [Oncology Centre, Cambridge University Hospitals, National Health Services Foundation Trust, Cambridge (United Kingdom)

    2012-02-01T23:59:59.000Z

    Purpose: This single-center randomized trial was designed to investigate whether intensity-modulated radiotherapy (IMRT) reduces late toxicity in patients with early-stage breast cancer. Methods and Materials: The standard tangential plans of 1,145 nonselected patients were analyzed. The patients with inhomogeneous plans were randomized to a simple method of forward-planned IMRT or standard radiotherapy (RT). The primary endpoint was serial photographic assessment of breast shrinkage. Results: At 2 years, no significant difference was found in the development of any photographically assessed breast shrinkage between the patients randomized to the interventional or control group (odds ratio, 1.51; 95% confidence interval, 0.83-1.58; p = .41). The patients in the control group were more likely to develop telangiectasia than those in the IMRT group (odds ratio, 1.68; 95% confidence interval 1.13-2.40; p = .009). Poor baseline surgical cosmesis resulted in poor overall cosmesis at 2 years after RT. In patients who had good surgical cosmesis, those randomized to IMRT were less likely to deteriorate to a moderate or poor overall cosmesis than those in the control group (odds ratio, 0.63; 95% confidence interval, 0.39-1.03, p = .061). Conclusions: IMRT can lead to a significant reduction in telangiectasia at comparatively early follow-up of only 2 years after RT completion. An important component of breast induration and shrinkage will actually result from the surgery and not from the RT. Surgical cosmesis is an important determinant of overall cosmesis and could partially mask the longer term benefits of IMRT at this early stage.

  19. HETEROGENEOUS ISOTOPIC ANOMALIES OF SM AND GD IN THE NORTON COUNTY METEORITE: EVIDENCE FOR IRRADIATION FROM THE ACTIVE EARLY SUN

    SciTech Connect (OSTI)

    Hidaka, Hiroshi; Kondo, Tomoyo [Department of Earth and Planetary Systems Science, Hiroshima University, Higashi-Hiroshima 739-8526 (Japan); Yoneda, Shigekazu, E-mail: hidaka@hiroshima-u.ac.jp [Department of Science and Engineering, National Museum of Nature and Science, Tokyo 169-0073 (Japan)

    2012-02-20T23:59:59.000Z

    Large and heterogeneous isotopic variations of {sup 150}Sm/{sup 149}Sm and {sup 158}Gd/{sup 157}Gd due to neutron capture reactions caused by cosmic-ray irradiation were found in chemical and mineral separates from the Norton County meteorite. The light-colored separates, consisting mainly of enstatite (Mg{sub 2}Si{sub 2}O{sub 6}), have a very large neutron fluence of 1.98 Multiplication-Sign 10{sup 17} n cm{sup -2}, which is 10 times higher than that of the whole rock. Furthermore, four chemical separates showed a large variation in neutron fluences, ranging from 1.82 Multiplication-Sign 10{sup 16} to 1.87 Multiplication-Sign 10{sup 17} n cm{sup -2}. The variable amounts of neutron fluences from a small single fragment of the Norton County meteorite cannot be simply explained by single-stage cosmic-ray irradiation in space. Rare earth element (REE) analyses revealed that the fractions with high neutron fluences have similar chemical properties to those in the early condensates in the solar system, showing depletions of Eu and Yb in their REE abundance patterns. The data provide evidence for an activity of the early Sun (T Tauri), suggesting the migration of early and intense irradiation materials into the Norton County meteorite's parent body.

  20. An Early Warning System for Asteroid Impact

    E-Print Network [OSTI]

    Tonry, John L

    2010-01-01T23:59:59.000Z

    Earth is bombarded by meteors, occasionally by one large enough to cause a significant explosion and possible loss of life. Although the odds of a deadly asteroid strike in the next century are low, the most likely impact is by a relatively small asteroid, and we suggest that the best mitigation strategy in the near term is simply to move people out of the way. We describe an "early warning" system that could provide a week's notice of most sizable asteroids or comets on track to hit the Earth. This system, dubbed "Asteroid Terrestrial-impact Last Alert System" (ATLAS), comprises two observatories separated by about 100km that simultaneously scan the visible sky twice a night, and can be implemented immediately for relatively low cost. The sensitivity of ATLAS permits detection of 140m asteroids (100 Mton impact energy) three weeks before impact, and 50m asteroids a week before arrival. An ATLAS alarm, augmented by other observations, should result in a determination of impact location and time that is accura...

  1. Water delivery in the Early Solar System

    E-Print Network [OSTI]

    Dvorak, Rudolf; Süli, Áron; Sándor, Zsolt; Galiazzo, Mattia; Pilat-Lohinger, Elke

    2015-01-01T23:59:59.000Z

    As part of the national scientific network 'Pathways to Habitable Worlds' the delivery of water onto terrestrial planets is a key question since water is essential for the development of life as we know it. After summarizing the state of the art we show some first results of the transport of water in the early Solar System for scattered main belt objects. Hereby we investigate the questions whether planetesimals and planetesimal fragments which have gained considerable inclination due to the strong dynamical interactions in the main belt region around 2 AU can be efficient water transporting vessels. The Hungaria asteroid group is the best example that such scenarios are realistic. Assuming that the gas giants and the terrestrial planets are already formed, we monitor the collisions of scattered small bodies containing water (in the order of a few percent) with the terrestrial planets. Thus we are able to give a first estimate concerning the respective contribution of such bodies to the actual water content i...

  2. Quantum origin of the early inflationary Universe

    E-Print Network [OSTI]

    A. O. Barvinsky; A. Yu. Kamenshchik; I. V. Mishakov

    1996-12-02T23:59:59.000Z

    We give a detailed presentation of a recently proposed mechanism of generating the energy scale of inflation by loop effects in quantum cosmology. We discuss the quantum origin of the early inflationary Universe from the no-boundary and tunneling quantum states and present a universal effective action algorithm for the distribution function of chaotic inflationary cosmologies in both of these states. The energy scale of inflation is calculated by finding a sharp probability peak in this distribution function for a tunneling model driven by the inflaton field with large negative constant $\\xi$ of non-minimal interaction. The sub-Planckian parameters of this peak (the mean value of the corresponding Hubble constant $H\\simeq 10^{-5}m_P$, its quantum width $\\Delta H/H\\simeq 10^{-5}$ and the number of inflationary e-foldings $N\\geq 60$) are found to be in good correspondence with the observational status of inflation theory, provided the coupling constants of the theory are constrained by a condition which is likely to be enforced by the (quasi) supersymmetric nature of the sub-Planckian particle physics model.

  3. Black hole formation in the early universe

    E-Print Network [OSTI]

    Latif, M A; Schmidt, W; Niemeyer, J

    2013-01-01T23:59:59.000Z

    Supermassive black holes with up to a $\\rm 10^{9}~M_{\\odot}$ dwell in the centers of present-day galaxies, and their presence has been confirmed at z $\\geq$ 6. Their formation at such early epochs is still an enigma. Different pathways have been suggested to assemble supermassive black holes in the first billion years after the Big Bang. Direct collapse has emerged as a highly plausible scenario to form black holes as it provides seed masses of $\\rm 10^{5}-10^{6}~M_{\\odot}$. Gravitational collapse in atomic cooling haloes with virial temperatures T$_{vir} \\geq 10^{4}$~K may lead to the formation of massive seed black holes in the presence of an intense background UV flux. Turbulence plays a central role in regulating accretion and transporting angular momentum. We present here the highest resolution cosmological large-eddy simulations to date which track the evolution of high-density regions on scales of $0.25$~AU beyond the formation of the first peak, and study the impact of subgrid-scale turbulence. The pe...

  4. EARLY EMISSION FROM TYPE Ia SUPERNOVAE

    SciTech Connect (OSTI)

    Rabinak, Itay; Waxman, Eli [Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel); Livne, Eli, E-mail: itay.rabinak@weizmann.ac.il [Racah Institute of Physics, Hebrew University, Jerusalem (Israel)

    2012-09-20T23:59:59.000Z

    A unique feature of deflagration-to-detonation (DDT) white dwarf explosion models of supernovae of type Ia is the presence of a strong shock wave propagating through the outer envelope. We consider the early emission expected in such models, which is produced by the expanding shock-heated outer part of the ejecta and precedes the emission driven by radioactive decay. We expand on earlier analyses by considering the modification of the pre-detonation density profile by the weak shocks generated during the deflagration phase, the time evolution of the opacity, and the deviation of the post-shock equation of state from that obtained for radiation pressure domination. A simple analytic model is presented and shown to provide an acceptable approximation to the results of one-dimensional numerical DDT simulations. Our analysis predicts a {approx}10{sup 3} s long UV/optical flash with a luminosity of {approx}1 to {approx}3 Multiplication-Sign 10{sup 39} erg s{sup -1}. Lower luminosity corresponds to faster (turbulent) deflagration velocity. The luminosity of the UV flash is predicted to be strongly suppressed at t > t{sub drop} {approx} 1 hr due to the deviation from pure radiation domination.

  5. Metal Enrichment in the Early Galactic Halo

    E-Print Network [OSTI]

    C. Ikuta; N. Arimoto

    1999-06-14T23:59:59.000Z

    An early history of metal enrichment in the Galactic halo is studied. We investigate chemical inhomogeneity by using a stochastic chemical evolution model. The model confronts with metallicity distribution function of long-lived halo stars which is found to be a clue to obtain the best model prescriptions. We find that the star formation in the halo virtually terminated by around 1 Gyr and that the halo has never been chemically homogeneous in its star formation history. This conclusion does not depend whether mass loss from the halo is taken into account or not. Observed ratios of alpha-elements with respect to iron do not show scatters on a [alpha/Fe]-[Fe/H] plane, but this does not imply that interstellar matter in the halo was homogeneous because a chemical evolution path on this diagram is degenerate in the star formation rate. On the other hand, apparent spread of [Sr/Fe] ratio among metal-poor halo stars does not reflect an inhomogeneous metal enrichment, instead it is due to a sharp increase in a production rate of strontium that is probably synthesised in slightly less massive stars than progenitor of iron-producing SNII.

  6. Early molecular responses of coral larvae to hyperthermal stress

    E-Print Network [OSTI]

    suggests that heat stress might compromise some components of the coral immune defence and therefore might oxidative stress showed little response at the early hours to heat stress, supporting the proposal that upEarly molecular responses of coral larvae to hyperthermal stress MAURICIO RODRIGUEZ-LANETTY,* SAKI

  7. Early Warning System on a National Level Project AMSEL

    E-Print Network [OSTI]

    Flegel, Ulrich

    Early Warning System on a National Level ­ Project AMSEL Martin Apel, Joachim Biskup, Ulrich Flegel.biskup, michael.meier@cs.tu-dortmund.de SAP Research, Vincenz-Prießnitz-Str. 1, 76131 Karlsruhe, Germany ulrich.flegel@sap.com Abstract We present the architecture of an automatic early warning system (EWS) that aims at providing

  8. Ecological Energetics in Early Homo Author(s): Herman Pontzer

    E-Print Network [OSTI]

    Pontzer, Herman

    Ecological Energetics in Early Homo Author(s): Herman Pontzer Reviewed work(s): Source: Current new forms of scholarship. For more information about JSTOR, please contact support.00. DOI: 10.1086/667402 Ecological Energetics in Early Homo by Herman Pontzer CA Online-Only Material

  9. ORIGINAL ARTICLE Early Brain Overgrowth in Autism Associated

    E-Print Network [OSTI]

    Utah, University of

    ORIGINAL ARTICLE Early Brain Overgrowth in Autism Associated With an Increase in Cortical Surface, PhD; Chad Chappell, MA; Rachel Gimpel Smith, BA; Clement Vachet, MS; Joseph Piven, MD Context: Brain. Objective: To investigate early growth trajectories in brain volume and cortical thickness. Design

  10. Early Termination in Sparse Interpolation Erich Kaltofen a

    E-Print Network [OSTI]

    Kaltofen, Erich

    Early Termination in Sparse Interpolation Algorithms Erich Kaltofen a , Wen-shin Lee b a termination, enables different interpolation algo- rithms to adapt to the degree or the number of terms this strategy in sparse interpolation algorithms. Based on early termination, racing algorithms execute

  11. Identification of Early Interstitial Lung Disease in Smokers from the

    E-Print Network [OSTI]

    Identification of Early Interstitial Lung Disease in Smokers from the COPDGene Study George R interstitial lung disease (ILD) on chest computed tomographic (CT) scans. Materials and Methods: The CT scans: Early interstitial lung disease; CT scan; smoker. ŞAUR, 2010 I diopathic pulmonary fibrosis (IPF

  12. Application to the Early Entry PhD Option Instructions

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Application to the Early Entry PhD Option Instructions: 1. TYPE required information. (You to the Academic Programs Office: Attention: Carol Aspinwall, Coordinator of PhD Program Academic Student Services that describes your reasons for seeking admission to the Early Entry PhD Option. APPROVAL (For office use only

  13. A High-Precision Instrument for Mapping of Rotational Errors in Rotary Stages

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

    Xu W.; Lauer,K.; Chu,Y.; Nazaretski,E.

    2014-10-02T23:59:59.000Z

    A rotational stage is a key component of every X-ray instrument capable of providing tomographic or diffraction measurements. To perform accurate three-dimensional reconstructions, runout errors due to imperfect rotation (e.g. circle of confusion) must be quantified and corrected. A dedicated instrument capable of full characterization and circle of confusion mapping in rotary stages down to the sub-10 nm level has been developed. A high-stability design, with an array of five capacitive sensors, allows simultaneous measurements of wobble, radial and axial displacements. The developed instrument has been used for characterization of two mechanical stages which are part of an X-ray microscope.

  14. Towering Cumulus Stage Mature Stage Dissipating Stage

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in2, 2003Tool ofTopo II:7.1 7.0Coupled Earth

  15. Early Detection of Steel Rebar Corrosion by Acoustic Emission Monitoring Early Detection of Steel Rebar Corrosion by Acoustic Emission

    E-Print Network [OSTI]

    Early Detection of Steel Rebar Corrosion by Acoustic Emission Monitoring Early Detection of Steel Rebar Corrosion by Acoustic Emission Monitoring Alan D. Zdunek and David Prine BIRL Industrial Research, Evanston, IL 60201 Paper No. 547 presented at CORROSION95, the NACE International Annual Conference

  16. ICES/PICES Early Career Scientists Symposium Marine science with global vision: creating a place for early career

    E-Print Network [OSTI]

    North, Elizabeth W.

    the 2007 Early Career Scientists Conference. ­ ICES Journal of Marine Science, 66: 334­335. Received 30 as the international organizations tasked with fostering marine science and applying it to the wise stewardship of their results to the international com- munity. The Early Career Scientists Conference (ECSC) "New Frontiers

  17. Stereotactic Body Radiotherapy Versus Surgery for Medically Operable Stage I Non-Small-Cell Lung Cancer: A Markov Model-Based Decision Analysis

    SciTech Connect (OSTI)

    Louie, Alexander V. [Department of Oncology, University of Western Ontario, London, ON (Canada); Rodrigues, George, E-mail: george.rodrigues@lhsc.on.ca [Department of Oncology, University of Western Ontario, London, ON (Canada); Department of Epidemiology/Biostatistics, University of Western Ontario, London, ON (Canada); Hannouf, Malek [Department of Epidemiology/Biostatistics, University of Western Ontario, London, ON (Canada); Zaric, Gregory S. [Department of Epidemiology/Biostatistics, University of Western Ontario, London, ON (Canada); Richard Ivey School of Business, University of Western Ontario, London, ON (Canada); Palma, David A. [Department of Oncology, University of Western Ontario, London, ON (Canada); Cao, Jeffrey Q. [Department of Oncology, University of Western Ontario, London, ON (Canada); Richard Ivey School of Business, University of Western Ontario, London, ON (Canada); Yaremko, Brian P. [Department of Oncology, University of Western Ontario, London, ON (Canada); Malthaner, Richard [Department of Epidemiology/Biostatistics, University of Western Ontario, London, ON (Canada); Division of Surgery, University of Western Ontario, London, ON (Canada); Mocanu, Joseph D. [Richard Ivey School of Business, University of Western Ontario, London, ON (Canada)

    2011-11-15T23:59:59.000Z

    Purpose: To compare the quality-adjusted life expectancy and overall survival in patients with Stage I non-small-cell lung cancer (NSCLC) treated with either stereotactic body radiation therapy (SBRT) or surgery. Methods and Materials: We constructed a Markov model to describe health states after either SBRT or lobectomy for Stage I NSCLC for a 5-year time frame. We report various treatment strategy survival outcomes stratified by age, sex, and pack-year history of smoking, and compared these with an external outcome prediction tool (Adjuvant{exclamation_point} Online). Results: Overall survival, cancer-specific survival, and other causes of death as predicted by our model correlated closely with those predicted by the external prediction tool. Overall survival at 5 years as predicted by baseline analysis of our model is in favor of surgery, with a benefit ranging from 2.2% to 3.0% for all cohorts. Mean quality-adjusted life expectancy ranged from 3.28 to 3.78 years after surgery and from 3.35 to 3.87 years for SBRT. The utility threshold for preferring SBRT over surgery was 0.90. Outcomes were sensitive to quality of life, the proportion of local and regional recurrences treated with standard vs. palliative treatments, and the surgery- and SBRT-related mortalities. Conclusions: The role of SBRT in the medically operable patient is yet to be defined. Our model indicates that SBRT may offer comparable overall survival and quality-adjusted life expectancy as compared with surgical resection. Well-powered prospective studies comparing surgery vs. SBRT in early-stage lung cancer are warranted to further investigate the relative survival, quality of life, and cost characteristics of both treatment paradigms.

  18. Early hydrodynamic evolution of a stellar collision

    SciTech Connect (OSTI)

    Kushnir, Doron; Katz, Boaz [Institute for Advanced Study, Einstein Drive, Princeton, NJ 08540 (United States)

    2014-04-20T23:59:59.000Z

    The early phase of the hydrodynamic evolution following the collision of two stars is analyzed. Two strong shocks propagate from the contact surface and move toward the center of each star at a velocity that is a small fraction of the velocity of the approaching stars. The shocked region near the contact surface has a planar symmetry and a uniform pressure. The density vanishes at the (Lagrangian) surface of contact, and the speed of sound diverges there. The temperature, however, reaches a finite value, since as the density vanishes, the finite pressure is radiation dominated. For carbon-oxygen white dwarf (CO WD) collisions, this temperature is too low for any appreciable nuclear burning shortly after the collision, which allows for a significant fraction of the mass to be highly compressed to the density required for efficient {sup 56}Ni production in the detonation wave that follows. This property is crucial for the viability of collisions of typical CO WD as progenitors of type Ia supernovae, since otherwise only massive (>0.9 M {sub ?}) CO WDs would have led to such explosions (as required by all other progenitor models). The divergence of the speed of sound limits numerical studies of stellar collisions, as it makes convergence tests exceedingly expensive unless dedicated schemes are used. We provide a new one-dimensional Lagrangian numerical scheme to achieve this. A self-similar planar solution is derived for zero-impact parameter collisions between two identical stars, under some simplifying assumptions (including a power-law density profile), which is the planar version of previous piston problems that were studied in cylindrical and spherical symmetries.

  19. A Review of "Staging Islam in England: Drama and Culture, 1640-1685" by Matthew Birchwood

    E-Print Network [OSTI]

    Garcia, Humberto

    2009-01-01T23:59:59.000Z

    reviews 145 Matthew Birchwood. Staging Islam in England: Drama and Culture, 1640- 1685. Studies in Renaissance Literature 21. Cambridge: D.S. Brewer, 2007. viii + 200 pp. + 4 illus. $95.00. Review by humberto garcia, vanderbilt university...

  20. Blade tip clearance effect on the performance and flow field of a three stage axial turbine

    E-Print Network [OSTI]

    Abdel-Fattah, Sharef Aly

    2003-01-01T23:59:59.000Z

    The effect of a 1.5 % blade tip clearance on a rotating three stage turbine under different operating points was investigated using radially and circumferentially traversed five hole pressure probes. The probes were used to obtain flow field total...

  1. Performance Analysis of an Annular Diffuser Under the Influence of a Gas Turbine Stage Exit Flow

    E-Print Network [OSTI]

    Blanco, Rafael Rodriguez

    2013-12-31T23:59:59.000Z

    In this investigation the performance of a gas turbine exhaust diffuser subject to the outlet flow conditions of a turbine stage is evaluated. Towards that goal, a fully three-dimensional computational analysis has been performed where several...

  2. Forced response of a centrifugal compressor stage due to the impeller-diffuser interaction

    E-Print Network [OSTI]

    Walton, Edward James

    2014-01-01T23:59:59.000Z

    The unsteady pressure field experienced by a centrifugal compressor stage can be dominated by of the impeller-diffuser interaction. The energy of the unsteady field, under certain aerodynamic and structural conditions, is ...

  3. ajcc stage i-ii: Topics by E-print Network

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

    This thesis focuses on the design of a public theatre for the entire city of Boston, a "city stage." The intention is to explore through design the boundaries of an architectural...

  4. Film Cooling, Heat Transfer and Aerodynamic Measurements in a Three Stage Research Gas Turbine 

    E-Print Network [OSTI]

    Suryanarayanan, Arun

    2010-07-14T23:59:59.000Z

    The existing 3-stage turbine research facility at the Turbomachinery Performance and Flow Research Laboratory (TPFL), Texas A and M University, is re-designed and newly installed to enable coolant gas injection on the first ...

  5. Effects of rotor tip clearance on an embedded compressor stage performance

    E-Print Network [OSTI]

    Sakulkaew, Sitanun

    2012-01-01T23:59:59.000Z

    Compressor efficiency variation with rotor tip gap is assessed using numerical simulations on an embedded stage representative of that in a large industrial gas turbine with Reynolds number being approximately 2 x 106 to ...

  6. Response of Peanuts to Irrigation Management at Different Crop Growth Stages

    E-Print Network [OSTI]

    Howell, T. A.; McFarland, M. J.; Reddell, D. L.; Brown, K. W.; Newton, R. J.; Dahmen, P.

    for peanuts at different crop growth stages for the Spanish and the Florunner varieties. The yield of the two varieties was evaluated under seven different irrigation treatments including a "no stress" check treatment and a dryland treatment. Each treatment...

  7. Complexity and Algorithms for Two-Stage Flexible Flowshop Scheduling with Availability Constraints

    E-Print Network [OSTI]

    Xie, Jinxing

    Complexity and Algorithms for Two-Stage Flexible Flowshop Scheduling with Availability Constraints problem with availability constraints. We discuss the complexity and the approximability of the problem cases of the problem. Keywords: Scheduling; Flexible flowshop; Availability constraints; Approximability

  8. Identification and compensation of friction for a dual stage positioning system

    E-Print Network [OSTI]

    Thimmalapura, Satish Voddina

    2005-11-01T23:59:59.000Z

    and velocity as compared to conventional friction models which are dependent on the direction of motion. Static and Coulomb friction were modelled as functions of velocity and position. This model was able to predict the behavior of the coarse stage...

  9. Two-Stage Plasma-Catalysis for Diesel NOx Emission Control. ...

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

    producing nitrogen. Citation: Hoard J, and RG Tonkyn.2003."Two-Stage Plasma-Catalysis for Diesel NOx Emission Control."Journal of Advanced Oxidation Technologies 6(2):158-165....

  10. Crucial stages of protein folding through a solvable model: Predicting target sites

    E-Print Network [OSTI]

    Cecconi, Fabio

    Crucial stages of protein folding through a solvable model: Predicting target sites for enzyme. Keywords: Protein-folding modeling; prediction of key folding sites; HIV-1 protease; drug resistance One

  11. Design study of the bending sections between harmonic cascade FEL stages

    E-Print Network [OSTI]

    Wan, Weishi; Corlett, John; Fawley, William; Zholents, A.

    2004-01-01T23:59:59.000Z

    A XUV/Soft X-Ray Harmonic- Cascade FEL for the Proposed LBNLin a Cascaded Harmonic FEL CBP Tech Note-281, Februarybetween Harmonic Cascade FEL Stages W. Wan, J. Corlett, W.

  12. Design of a New Decoupled XYZ Compliant Parallel Micropositioning Stage with Compact Structure

    E-Print Network [OSTI]

    Li, Yangmin

    , University of Macau, Av. Padre Tom´as Pereira, Taipa, Macao SAR, China qsxu@umac.mo, ymli@umac.mo Delta can not be realized, a decoupled XYZ stage with proper calibrations is preferred. Moreover

  13. Novel Design of a Totally Decoupled Flexure-Based XYZ Parallel Micropositioning Stage

    E-Print Network [OSTI]

    Li, Yangmin

    of Macau, Av. Padre Tom´as Pereira, Taipa, Macao SAR, P.R.China, Corresponding author: ymli with proper calibrations is preferred. Moreover, a decoupled stage will benefit the controller design process

  14. On the Power and Limitations of Affine Policies in Two-Stage Adaptive Optimization

    E-Print Network [OSTI]

    Bertsimas, Dimitris J.

    We consider a two-stage adaptive linear optimization problem under right hand side uncertainty with a min–max objective and give a sharp characterization of the power and limitations of affine policies (where the second ...

  15. Second order accurate variance estimation in poststratified two-stage sampling

    E-Print Network [OSTI]

    Kim, Kyong Ryun

    2007-09-17T23:59:59.000Z

    We proposed new variance estimators for the poststratified estimator of the population total in two-stage sampling. The linearization or Taylor series variance estimator and the jackknife linearization variance estimator are popular...

  16. The NanoMax-TSTM three-axis stage offers an unmatched combination of

    E-Print Network [OSTI]

    Kik, Pieter

    555 Spacer Block to Raise Optical- Axis Height to 125-mm 17 AMA 554 ©2002 MELLES GRIOT MCE 1042 03 holes threaded M2 on 20 centers dimensions: millimeters 17 MAX 302 3-axis stage MELLES GRIOT

  17. Designing a low cost XY stage for abrasive water jet cutting

    E-Print Network [OSTI]

    Abu Ibrahim, Fadi, 1980-

    2004-01-01T23:59:59.000Z

    This thesis guides the reader through the design of an inexpensive XY stage for abrasive water jet cutting machine starting with a set of functional requirements and ending with a product. Abrasive water jet cutting allows ...

  18. Stabilizing Soybean Production in Northeast Texas with Early Planting of Early-Maturing Soybean Varieties.

    E-Print Network [OSTI]

    Bowers, G.R. Jr; Nelson, L.R.; Finch, G.A. III

    1990-01-01T23:59:59.000Z

    a pro longed hot, dry period in July and August, coinciding with the blooming and seed-filling periods of Maturity Groups (MG) V, VI, and VII soybean varieties planted in Mayor early June, which are harvested in October. This traditional soybean... systems/ North east Texas/ yield. rizes the results [rom a 3-year study comparing the agro nom.ic ~rformance of MG III and IV varieties planted in Apnl WIth MG V, VI, and VII varieties planted in May. Materials and Methods Test plots were located...

  19. The Impact of Product Contamination in a Multi-Stage Food Supply Chain

    E-Print Network [OSTI]

    Chebolu-Subramanian, Vijaya

    2012-07-16T23:59:59.000Z

    THE IMPACT OF PRODUCT CONTAMINATION IN A MULTI- STAGE FOOD SUPPLY CHAIN A Dissertation by VIJAYA B. CHEBOLU-SUBRAMANIAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment...-Subramanian THE IMPACT OF PRODUCT CONTAMINATION IN A MULTI- STAGE FOOD SUPPLY CHAIN A Dissertation by VIJAYA B. CHEBOLU-SUBRAMANIAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree...

  20. Effects of vaned diffuser pressure recovery on centrifugal compressor stage performance

    E-Print Network [OSTI]

    Eason, Robyn Monique

    1985-01-01T23:59:59.000Z

    Orientation of Channel Taps and Sealed Holes ? ? ? ? ? 28 11 Control Rxan 12 Inlet and Exit Velocity Triangles 13 Impeller Meridional Profile- 14 Prescribed Flow Functians 30 35 36 15 Vened Diffuser Geanetry 41 16 Leading Edge Circumf erentia1 Static... of vened diffuser static pressure recovery on centrifugal ccxn- pressor stage performance are presented. A single-stage radial canpres- sor experiencing actual operating conditions in a Ford regenerative gas turbine engine was utilized...

  1. The Multi-Stage Investment Timing Game in Offshore Petroleum Production: Preliminary results from an econometric model

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    2007-01-01T23:59:59.000Z

    irreversible investment using North Sea oil data. Economicfor each of the two investment stages in oil production. InOil production is a multi-stage process involving sequential investment

  2. Entering a New Stage of Learning from the U.S. Fuel Cell Electric Vehicle Demonstration Project (Presentation)

    SciTech Connect (OSTI)

    Wipke, K.; Sprik, S.; Kurtz, J.; Ramsden, T.; Garbak, J.

    2010-11-08T23:59:59.000Z

    This presentation summarizes Entering a New Stage of Learning from the U.S. Fuel Cell Electric Vehicle Demonstration Project.

  3. Wellcome Trust SUBMISSION OF EVIDENCE Wellcome Trust response to Department for Education: Reforming Key Stage 4 qualifications

    E-Print Network [OSTI]

    Rambaut, Andrew

    : Reforming Key Stage 4 qualifications December 2012 Department for Education: Reforming Key Stage 4 science skills. 2. We are pleased to have the opportunity to respond to the consultation on reforms to Key consultations on the reform to curriculum and assessment at various stages of schooling. There is an opportunity

  4. DIALOG: Fostering Early Career Development Across the Aquatic Sciences

    SciTech Connect (OSTI)

    Caroline Susan Weiler, PhD

    2004-11-14T23:59:59.000Z

    A total of 447 dissertation abstracts were received for the DIALOG V Program, with 146 individuals applying for the DIALOG V Symposium; 47 were invited and 45 have accepted. This represents a significant increase compared to the DIALOG IV Program in which 221 abstracts were registered and 124 applied for the symposium. The importance of the dissertation registration service is indicated by the increasing number of individuals who take time to register their dissertation even when they are not interested in applying to the symposium. The number of visits to the webpage has also increased significantly over the years. This also reflects graduate interest in being part of the on-line Dissertation Registry and receiving the weekly electronic DIALOG Newsletter. See http://aslo.org/phd.html for details. The DIALOG symposium reaches approximately 40 new PI's at a pivotal point in their research careers. Based on their comments, the symposium changes the way participants think, communicate, and approach their research. The science community and the general population will benefit from the perspectives these new PI's bring back to their home institutions and share with their students and colleagues. This group should act as a catalyst to move the entire field in exciting new, interdisciplinary directions. To reach more graduates, plans are underway to establish the symposium on an annual basis. By facilitating the development of close collegial ties, symposium participants come away with a network of colleagues from around the globe with interests in aquatic science research and education. Past participants are collaborating on research proposals, and all have noted that participation has enabled them to develop a more interdisciplinary view of their field, influencing the way they interpret, communicate, and approacli their research. The dissertation registry provides a unique introduction to the work of this most recent generation of aquatic scientists. Each year increasing numbers of graduates take advantage of the opportunity to be part of this international collection, and more scientists, employers and administrators use this resource to identify recent graduates and get an overview of their work. Dissertation abstracts are submitted on line and immediately posted on the ASLO web site in a format that can be searched by year, name, and key words (www.aslo.org/phd.html). In addition to the recognition, program participants receive a compilation of abstracts, a directory, and a demographic profile of their cohort. An electronic distribution list keeps recent grads informed about job opportunities, resources, recent advances across the aquatic sciences, and-other research and professional news. Finally, the interdisciplinary symposium offers a unique opportunity for grads to get to know each other and share common experiences, and address the challenges and opportunities facing new professionals. The DIALOG Program is a long-term investment in human resources and science infrastructure. The most interesting and important questions in aquatic and other sciences are increasingly interdisciplinary and this program brings together scientists from across the full spectrum of biologically relevant aquatic science. The DIALOG database will become increasingly useful as more graduates participate. While the full impact of the program will probably not be realized for many years, there have already been many tangible results. Several interdisciplinary (including some international) research collaborations have been started; an international student exchange program has been set up at two institutions; several workshops and meeting sessions have been organized; and the entire group continues to communicate about research, education, and science policy issues via an electronic distribution list. The goal of the DIALOG symposium is to foster cross-disciplinary and international understanding and interactions at an early career stage, so that interdisciplinary perspectives and collegial relationships can build over a full professional life

  5. Early Market TRL/MRL Analysis

    SciTech Connect (OSTI)

    Ronnebro, Ewa; Stetson, Ned

    2013-12-01T23:59:59.000Z

    he focus of this report is TRL/MRL analysis of hydrogen storage; it documents the methodology and results of an effort to identify hydrogen storage technologies’ technical and manufacturing readiness for early market motive and non-motive applications and to provide a path forward toward commercialization. Motive applications include materials handling equipment (MHE) and ground support equipment (GSE), such as forklifts, tow tractors, and specialty vehicles such as golf carts, lawn mowers and wheel chairs. Non-motive applications are portable, stationary or auxiliary power units (APUs) and include portable laptops, backup power, remote sensor power, and auxiliary power for recreational vehicles, hotels, hospitals, etc. Hydrogen storage technologies assessed include metal hydrides, chemical hydrides, sorbents, gaseous storage, and liquid storage. The assessments are based on a combination of Technology Readiness Level (TRL) and Manufacturing Readiness Level (MRL) designations that enable evaluation of hydrogen storage technologies at varying levels of development. The manufacturing status could be established from eight risk elements: Technical Maturity, Design, Materials, Cost & Funding, Process Capability, Personnel, Facilities and Manufacturing Planning. This approach provides a logical methodology and roadmap to enable the identification of hydrogen storage technologies, their advantages/disadvantages, gaps and R&D needs on an unbiased and transparent scale that is easily communicated to interagency partners. This technology readiness assessment (TRA) report documents the process used to conduct the TRA/MRA (technology and manufacturing readiness assessment), reports the TRL and MRL for each assessed technology and provides recommendations based on the findings. To investigate the state of the art and needs to mature the technologies, PNNL prepared a questionnaire to assign TRL and MRL for each hydrogen storage technology. The questionnaire was sent to identified hydrogen storage technology developers and manufacturers who were asked to perform a self-assessment. We included both domestic and international organizations including U.S. national laboratories, U.S. companies, European companies and Japanese companies. PNNL collected the data and performed an analysis to deduce the level of maturity and to provide program recommendations.

  6. COMFEN 3.0 - Evolution of an Early Design Tool for Commercial Facades and Fenestration Systems

    SciTech Connect (OSTI)

    McClintock Facade Consulting LLC, Walnut Creek, CA; McQuillen Interactive LLC, Santa Cruz, CA; Selkowitz, Stephen; Mitchell, Robin; McClintock, Maurya; McQuillen, Daniel; McNeil, Andrew; Yazdanian, Mehry

    2011-03-09T23:59:59.000Z

    Achieving a net-zero energy building cannot be done solely by improving the efficiency of the engineering systems. It also requires consideration of the essential nature of the building including factors such as architectural form, massing, orientation and enclosure. Making informed decisions about the fundamental character of a building requires assessment of the effects of the complex interaction of these factors on the resulting performance of the building. The complexity of these interactions necessitates the use of modeling and simulation tools to dynamically analyze the effects of the relationships, yet decisions about the building fundamentals are often made in the earliest stages of design, before a `building? exists to model. To address these issues, Lawrence Berkeley National Laboratory (LBNL) has developed an early-design energy modeling tool (COMFEN) specifically to help make informed decisions about building facade fundamentals by considering the design of the building envelope, orientation and massing on building performance. COMFEN focuses on the concept of a ?space? or ?room? and uses the EnergyPlus, and RadianceTM engines and a simple, graphic user interface to allow the user to explore the effects of changing key early-design input variables on energy consumption, peak energy demand, and thermal and visual comfort. Comparative results are rapidly presented in a variety of graphic and tabular formats to help users move toward optimal facade and fenestration design choices.While COMFEN 1.0 utilized an ExcelTM-based user interface, COMFEN 3.0 has been reworked to include a simple, more intuitive, yet powerful Graphic User Interface (GUI), a broader range of libraries for associated system and component choices and deliver a wider range of graphic outputs and options. This paper (and presentation) outlines the objectives in developing and further refining COMFEN, the mechanics of the program, and plans for future development.

  7. EVIDENCE FOR MULTIPLE SOURCES OF {sup 10}Be IN THE EARLY SOLAR SYSTEM

    SciTech Connect (OSTI)

    Wielandt, Daniel; Krot, Alexander N.; Bizzarro, Martin [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Copenhagen DK-1350 (Denmark); Nagashima, Kazuhide; Huss, Gary R. [Hawai'i Institute of Geophysics and Planetology, University of Hawai'i at Manoa, HI 96822 (United States); Ivanova, Marina A. [Vernadsky Institute of Geochemistry and Analytical Chemistry, Moscow 119991 (Russian Federation)

    2012-04-01T23:59:59.000Z

    Beryllium-10 is a short-lived radionuclide (t{sub 1/2} = 1.4 Myr) uniquely synthesized by spallation reactions and inferred to have been present when the solar system's oldest solids (calcium-aluminum-rich inclusions, CAIs) formed. Yet, the astrophysical site of {sup 10}Be nucleosynthesis is uncertain. We report Li-Be-B isotope measurements of CAIs from CV chondrites, including CAIs that formed with the canonical {sup 26}Al/{sup 27}Al ratio of {approx}5 Multiplication-Sign 10{sup -5} (canonical CAIs) and CAIs with Fractionation and Unidentified Nuclear isotope effects (FUN-CAIs) characterized by {sup 26}Al/{sup 27}Al ratios much lower than the canonical value. Our measurements demonstrate the presence of four distinct fossil {sup 10}Be/{sup 9}Be isochrons, lower in the FUN-CAIs than in the canonical CAIs, and variable within these classes. Given that FUN-CAI precursors escaped evaporation-recondensation prior to evaporative melting, we suggest that the {sup 10}Be/{sup 9}Be ratio recorded by FUN-CAIs represents a baseline level present in presolar material inherited from the protosolar molecular cloud, generated via enhanced trapping of galactic cosmic rays. The higher and possibly variable apparent {sup 10}Be/{sup 9}Be ratios of canonical CAIs reflect additional spallogenesis, either in the gaseous CAI-forming reservoir, or in the inclusions themselves: this indicates at least two nucleosynthetic sources of {sup 10}Be in the early solar system. The most promising locale for {sup 10}Be synthesis is close to the proto-Sun during its early mass-accreting stages, as these are thought to coincide with periods of intense particle irradiation occurring on timescales significantly shorter than the formation interval of canonical CAIs.

  8. Vsevolod Meyerhold : modernism, mass culture and the Russian avante garde stage

    E-Print Network [OSTI]

    Holmes, Jeffrey, M.S. Massachusetts Institute of Technology

    1994-01-01T23:59:59.000Z

    As early as 1907, Russian director Vsevolod Meyerhold writes of the need to renovate the theater by "means of new forms and new methods of scenic presentation" predicated on the "collective enterprise" of the author, ...

  9. The influence of a surfactant upon the foliar penetration of DEF (S, S, S-tributylphosphorotrithioate) in cotton

    E-Print Network [OSTI]

    Baker, Richard Darrell

    1967-01-01T23:59:59.000Z

    gradient, and leaf abscission in cotton, Proc. 9th Ann. Cotton Defol. snd Physiol, . Conf, ? p. 41-45. 2. Agriculture Research Service, June, 1960. Harvest-aid Chemicals for Cotton. ARS 22-58, USDA. 3. Bayer, D. E. and Drever, H. R. 1965. The effects...-called "abscission layer. " Amer. Journ. Bot. 37: 172-180. 'l0. Goyette, L. E. 1956. Abscission inducing activity of a series of trialkyl phosphorotrithioites. Proc. 11th Ann. Cotton Defol. and Physiol. Conf. , p. 9. Hall, W, C. 1958. Physiology and biochemistry...

  10. The influence of a surfactant upon the foliar penetration of DEF (S, S, S-tributylphosphorotrithioate) in cotton 

    E-Print Network [OSTI]

    Baker, Richard Darrell

    1967-01-01T23:59:59.000Z

    gradient, and leaf abscission in cotton, Proc. 9th Ann. Cotton Defol. snd Physiol, . Conf, ? p. 41-45. 2. Agriculture Research Service, June, 1960. Harvest-aid Chemicals for Cotton. ARS 22-58, USDA. 3. Bayer, D. E. and Drever, H. R. 1965. The effects...-called "abscission layer. " Amer. Journ. Bot. 37: 172-180. 'l0. Goyette, L. E. 1956. Abscission inducing activity of a series of trialkyl phosphorotrithioites. Proc. 11th Ann. Cotton Defol. and Physiol. Conf. , p. 9. Hall, W, C. 1958. Physiology and biochemistry...

  11. Data:B4685def-974c-4f97-abed-833330a68b32 | Open Energy Information

    Open Energy Info (EERE)

    voltage is available, the customer desires to furnish, install and maintain transformers and protective devices, a 2.5% discount will be allowed. All metering will be on...

  12. amp inducible early: Topics by E-print Network

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

    shows the Bode magnitude plots for both VoVi and A (j). The figure shows Leach Jr.,W. Marshall 125 Original article Role of the uterus in early regression of corpora lutea...

  13. Early remodeling of the neocortex upon episodic memory encoding

    E-Print Network [OSTI]

    Ericsson, M.

    Understanding the mechanisms by which long-term memories are formed and stored in the brain represents a central aim of neuroscience. Prevailing theory suggests that long-term memory encoding involves early plasticity ...

  14. Commissioning and early experiments of the PHELIX facility

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    009-3855-7 Commissioning and early experiments of the PHELIXthe recent years, the commissioning and operation of high-paper, we report on the commissioning of the PHELIX facility

  15. Final Report Early Evaluation of a Second Generation Information

    E-Print Network [OSTI]

    ........................................................................................................................ 4-2 4.3. Energy Management Control SystemsFinal Report Early Evaluation of a Second Generation Information Monitoring and Diagnostic System........................................................................................................ 4-4 5. Use of the Information Monitoring and Diagnostic System

  16. The Construction of Early Modernity in Spanish Film 

    E-Print Network [OSTI]

    Zarate Casanova, Miguel Angel

    2011-10-21T23:59:59.000Z

    The Construction of Early Modernity in Spanish Film. (August 2011) Miguel Angel Zarate Casanova, B.A. (Licenciatura), Complutense University at Madrid; M.A. (Diploma de Estudios Avanzados), Autonoma University at Madrid Chair of Advisory Committee: Dr. Richard K...

  17. Growing Up in Scotland: Pregnancy, Birth and Early Parenting 

    E-Print Network [OSTI]

    Government, Scottish

    2007-01-08T23:59:59.000Z

    The Growing Up in Scotland study ( GUS) is an important new longitudinal research project aimed at tracking the lives of a cohort of Scottish children from the early years, through childhood and beyond. Its principal aim is to provide information...

  18. 8.286 The Early Universe, Spring 2004

    E-Print Network [OSTI]

    Guth, Alan

    The Early Universe provides an introduction to modern cosmology. The first half deals with the development of the big-bang theory from 1915 to 1980, and latter half with recent impact of particle theory.

  19. College of Education IEC Interdisciplinary Early Childhood Education

    E-Print Network [OSTI]

    MacAdam, Keith

    College of Education IEC Interdisciplinary Early Childhood Education KEY: # = new course * = course changed = course dropped University of Kentucky 2013-2014 Undergraduate Bulletin 1 IEC 120 INTRODUCTION. IEC 255 CHILD DEVELOPMENT. (3) Anoverviewofthevariousaspectsofdevelopment

  20. Data Analysis of Early Fuel Cell Market Demonstrations (Presentation)

    SciTech Connect (OSTI)

    Kurtz, J.; Ramsden, T.; Wipke, K.; Sprik, S.

    2009-11-17T23:59:59.000Z

    Presentation about early fuel cell markets, the National Renewable Energy Laboratory's Hydrogen Secure Data Center and its role in data analysis and demonstrations, and composite data products, and results reported to multiple stakeholders.