National Library of Energy BETA

Sample records for line denotes change

  1. A Denotational Model for Component-Based Risk Analysis

    E-Print Network [OSTI]

    Stølen, Ketil

    A Denotational Model for Component-Based Risk Analysis Gyrd Brændeland1,2, , Atle Refsdal2 by traditional risk analysis methods. This paper ad- dresses this problem from a theoretical perspective by proposing a deno- tational model for component-based risk analysis. In order to model the probabilistic

  2. Climate Change Awareness Time Line: How Did We Get to Today? 

    E-Print Network [OSTI]

    Crawford, J. G.

    2008-01-01

    stream_source_info ESL-HH-08-12-21.pdf.txt stream_content_type text/plain stream_size 1460 Content-Encoding ISO-8859-1 stream_name ESL-HH-08-12-21.pdf.txt Content-Type text/plain; charset=ISO-8859-1 Climate Change... Awareness Time Line: How Did We Get to Today Jim Crawford Trane jim.crawford@trane.com www.trane.com Abstract The climate change issue has really entered the awareness of the general public within the last two years or so. During that time...

  3. Distant touch hydrodynamic imaging with an artificial lateral line Coombs, Douglas L. Jones, and Chang Liu

    E-Print Network [OSTI]

    Jones, Douglas L.

    augment sonar and vision systems. We show that the artificial lateral line can successfully perform dipoleDistant touch hydrodynamic imaging with an artificial lateral line Coombs, Douglas L. Jones reprints, see: Notes: #12;Distant touch hydrodynamic imaging with an artificial lateral line Yingchen Yang

  4. Announcement of Change in Public Meeting Location for the Northern Pass Transmission Line Project Published in the Federal Register

    Broader source: Energy.gov [DOE]

    The Department announces a change of location for the September 26, 2013 public scoping meeting for the Northern Pass Transmission Line Project to Colebrook Elementary School, 27 Dumont Street, Colebrook, NH. The meeting will be from 5 to 8 p.m.

  5. October 15, 2006 p. 50, In box 2.2, "Snowball Earth", line 13: Change "low" to "high"

    E-Print Network [OSTI]

    Pu, Zhaoxia

    Errata October 15, 2006 Chapter 2 p. 50, In box 2.2, "Snowball Earth", line 13: Change "low" to "high" Chapter 3 p. 69, Eq. 3.27 should be H RdTv g0 = 29.3Tv p. 83 In Fig 3.10, the label for B should read (p, Td, w(A)) Here is the figure with labeling for A and B modified C (p, Td, w(A)) A constant ws

  6. An Image-Based System for Change Detection on Tunnel Linings Simon Stent

    E-Print Network [OSTI]

    Stenger, Björn

    a growing risk of structural failure. A critical requirement for performance failure pre- vention the risk of unexpected failure. Detecting such changes is often the work of human inspectors, but given: Overview of the system. (a) Low-cost cam- era array for data capture; (b) Pipeline summary. of more

  7. Hemodynamic Monitoring TRANSTHORACIC LINES

    E-Print Network [OSTI]

    Kay, Mark A.

    and with position changes. 5. All lines should have either heparinized saline or D5W infusing. 6. Avoid infusing the line. 9. Never use LA for infusions or bolus medications. 10. Vigilant observation for AIR. B. Line

  8. CSCE 330 Fall 2000 Example of Denotational Semantics for a Program

    E-Print Network [OSTI]

    Valtorta, Marco

    i mem1; empty; empty >); where mem1 = f; ; g: The two assignments change the state in such a way(fact)); mem2; empty; empty >); where mem2 = f; ; g: Let us now use the semantics

  9. The spectra of super line multigraphs Department of Computer Science

    E-Print Network [OSTI]

    Ellis, Robert B.

    The spectra of super line multigraphs Jay Bagga Department of Computer Science Ball State, the super line multigraph of index r of G, denoted Mr(G), has for vertices all the r-subsets of edges. Two all the eigenvalues of Mr(G) and their multiplicities in terms of those of G. Key words. super line

  10. Climate Change and Litigation (on line) Environmental litigation is not a new area of law. In fact, water and/or air pollution has led to cases being brought

    E-Print Network [OSTI]

    Judd, Martin

    7 Climate Change and Litigation (on line) Environmental litigation is not a new area of law courts for more than a century, or even more. Climate change, however, poses a new set of challenges for litigation. Despite such obstacles, climate change litigation is expanding also as a strategic option

  11. Multicolor on-line degree Ramsey numbers of trees William B. Kinnersley

    E-Print Network [OSTI]

    West, Douglas B.

    Multicolor on-line degree Ramsey numbers of trees William B. Kinnersley and Douglas B. West University of Illinois, Urbana IL. October 24, 2011; revised May 25, 2012 Abstract In the on-line Ramsey game can ensure that a monochromatic G arises. The s-color on-line degree Ramsey number of G, denoted °R

  12. Some basic topics in the theory of concurrency are studied from the point of view of denotational semantics, and particularly the \\Domain theory in logical form" de-

    E-Print Network [OSTI]

    Abramsky, Samson

    Some basic topics in the theory of concurrency are studied from the point of view of denotational ###### ######## ########## ## ######### ######## ####### ## ######## ########## ### ######## ## ###### ## ####### ## #### ########### ### ########### # ###### ######## ### ############ #12; Our aim in this paper is to treat some basic topics in the theory of concurrency from the point semantics, and particularly the \\Domain theory in logical form" de- veloped by the author. A domain

  13. UCIS is home to five area studies centers. (*) Denotes designation as a National Resource Center by the U.S. Department of Education

    E-Print Network [OSTI]

    Sibille, Etienne

    16 UCIS is home to five area studies centers. (*) Denotes designation as a National Resource Center by the U.S. Department of Education Center for Latin American Studies* Center for Russian in their respective schools and colleges, are affiliated with UCIS: Center for International Legal Education

  14. On-line supplement: The Turbulence Parameterization Scheme The turbulence scheme used in this work is adapted from a more comprehensive

    E-Print Network [OSTI]

    He, Yanping

    On-line supplement: The Turbulence Parameterization Scheme The turbulence scheme used in this work-gradient turbulent transfer processes for cloud-free conditions. Throughout this supplement w denotes vertical

  15. Math 2001 page 1 of 9 1. (10) Recall that if S is a set, then the power set of S (denoted by 2S

    E-Print Network [OSTI]

    Green, Richard M.

    Math 2001 page 1 of 9 1. (10) Recall that if S is a set, then the power set of S (denoted by 2S finite). Prove that if 2A = 2B , then A = B. #12;Math 2001 page 2 of 9 2. (10) (i) State the Binomial;Math 2001 page 3 of 9 3. (10) Prove that, for all natural numbers n 1, we have 12 + 32 + 52

  16. One can ask a more general version of question 26.2. Recall that for a discrete group G, one denotes by EG any G-CW complex which has the

    E-Print Network [OSTI]

    Davis, James F.

    denotes by EG any G-CW complex which has the property that for any subgroup H of G (EG)H = |H| = |H| EG, which is unique up to G-homotopy. In particular, any two models for EG are G-homotopy equivalent. For the mapping class

  17. A Representation of Projective Space by the Points of a Line

    E-Print Network [OSTI]

    Hess, George Wellman

    1911-05-01

    and AN an ordinary spatial point with "N for its first {"second, third) component, the spatial plane a n determined by l n and A n is a apfifiial s e a i i a l c l a n s Q I tos I, C l a s s I (II/IJD^QB IS* which is denoted a of li ( I 2 > l 3 ) . The ideal line... not all of which are ideal, and X and Y are any two points on AB and AC respectively, there is one, and only one, spatial point collinear with X and Y and with B and C. Case I. A,B,and C are all ordinary. Let the lines AB, AC, BC, and XY be denoted lx...

  18. 11601. For any prime p and positive integer n, let N(p, n) denote the dif-ference between the number of p's appearing as factors in the denominator

    E-Print Network [OSTI]

    Karaivanov, Borislav

    11601. For any prime p and positive integer n, let N(p, n) denote the dif- ference between the number of p's appearing as factors in the denominator of Fn and the number of those appearing in the numerator of Fn. Clearly, Fn is an integer if and only if N(p, n) 0 for all primes p. The idea of the proof

  19. Visual Change Detection on Tunnel Linings

    E-Print Network [OSTI]

    Stent, Simon; Gherardi, Riccardo; Stenger, Björn; Soga, Kenichi; Cipolla, Roberto

    2014-11-28

    and computer-aided infrastructure in- spection. He joined Toshiba Research Europe in 2010. He was one of the recipients of the company’s out- standing service award for his work on the Fukushima power plant. Bjo¨rn Stenger received the Diplom...

  20. Plains and Eastern Clean Line Transmission Line: Comment from...

    Energy Savers [EERE]

    Plains and Eastern Clean Line Transmission Line: Comment from Marshall Hughes Plains and Eastern Clean Line Transmission Line: Comment from Marshall Hughes Comment submitted on...

  1. Plains and Eastern Clean Line Transmission Line: Comment from...

    Office of Environmental Management (EM)

    from Block Plains and Eastern Clean Line: Arkansas and Oklahoma Plains and Eastern Clean Line Transmission Line: Comment from Block Plains and Eastern Clean Line: Arkansas and...

  2. Sample Changes and Issues

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    EIA-914 Survey and HPDI. Figure 2 shows how this could change apparent production. The blue line shows the reported sample production as it would normally be reported under the...

  3. Racing line optimization

    E-Print Network [OSTI]

    Xiong, Ying, S.M. Massachusetts Institute of Technology

    2010-01-01

    Although most racers are good at controlling their cars, world champions are always talented at choosing the right racing line while others mostly fail to do that. Optimal racing line selection is a critical problem in car ...

  4. Abstract interpretation from a denotational semantics

    E-Print Network [OSTI]

    Schmidt, David A.

    (x) if x pos? A: abstractly interpret input domain Int by Sign = {neg, zero, pos, any}: readSign(x) x = succ(x) if (filterNeg(x): x = negate (x)) (filterNonNeg(x): x = succ(x)) fi writeSign(x) where succ (pos) = pos succ (zero) = pos succ

  5. Unifying static and dynamic denotational Pierre Boudes

    E-Print Network [OSTI]

    Provence Aix-Marseille I, Université de

    (or equivalently, thanks to Curry­Howard isomorphism, with seman­ tics of proofs). We introduce a framework in which both static seman­ tics (Ehrhard's hypercoherences) and dynamic semantics (Hyland, play the role of intermediate objets between the syntax and the (two) seman­ tics. Our framework allows

  6. Unifying static and dynamic denotational Pierre Boudes

    E-Print Network [OSTI]

    Provence Aix-Marseille I, Université de

    (or equivalently, thanks to Curry-Howard isomorphism, with seman- tics of proofs). We introduce a framework in which both static seman- tics (Ehrhard's hypercoherences) and dynamic semantics (Hyland, play the role of intermediate objets between the syntax and the (two) seman- tics. Our framework allows

  7. E P GPT collectively denotes new developments

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HAB PacketDieselAbsorptionPowering the Future As demand forNationalE P

  8. Series Transmission Line Transformer

    DOE Patents [OSTI]

    Buckles, Robert A. (Livermore, CA); Booth, Rex (Livermore, CA); Yen, Boris T. (El Cerrito, CA)

    2004-06-29

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  9. Transmission Line Security Monitor

    ScienceCinema (OSTI)

    None

    2013-05-28

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  10. Transmission Line Security Monitor

    SciTech Connect (OSTI)

    2011-01-01

    The Transmission Line Security Monitor is a multi-sensor monitor that mounts directly on high-voltage transmission lines to detect, characterize and communicate terrorist activity, human tampering and threatening conditions around support towers. For more information about INL's critical infrastructure protection research, visit http://www.facebook.com/idahonationallaboratory.

  11. Coherent soliton communication lines

    SciTech Connect (OSTI)

    Yushko, O. V. Redyuk, A. A.; Fedoruk, M. P.; Turitsyn, S. K.

    2014-11-15

    The data transmission in coherent fiber-optical communication lines using solitons with a variable phase is studied. It is shown that nonlinear coherent structures (solitons) can be applied for effective signal transmission over a long distance using amplitude and optical-phase keying of information. The optimum ratio of the pulse width to the bit slot at which the spectral efficiency (transmitted bits per second and hertz) is maximal is determined. It is shown that soliton fiber-optical communication lines can ensure data transmission at a higher spectral efficiency as compared to traditional communication lines and at a high signal-to-noise ratio.

  12. Power line detection system

    DOE Patents [OSTI]

    Latorre, V.R.; Watwood, D.B.

    1994-09-27

    A short-range, radio frequency (RF) transmitting-receiving system that provides both visual and audio warnings to the pilot of a helicopter or light aircraft of an up-coming power transmission line complex. Small, milliwatt-level narrowband transmitters, powered by the transmission line itself, are installed on top of selected transmission line support towers or within existing warning balls, and provide a continuous RF signal to approaching aircraft. The on-board receiver can be either a separate unit or a portion of the existing avionics, and can also share an existing antenna with another airborne system. Upon receipt of a warning signal, the receiver will trigger a visual and an audio alarm to alert the pilot to the potential power line hazard. 4 figs.

  13. Transmission line capital costs

    SciTech Connect (OSTI)

    Hughes, K.R.; Brown, D.R.

    1995-05-01

    The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy`s Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs.

  14. Monolithic torpedo bottle lining at Weirton Steel Corporation

    SciTech Connect (OSTI)

    Baker, R.; Griffith, E. [Weirton Steel Corp., WV (United States)

    1996-12-31

    In late 1992 and early 1993 Weirton Steel burned through three torpedo bottles in a three-month period. To determine the cause of the burn throughs, a thorough review of bottle maintenance practices was initiated. Upon identification of contributing factors, changes in operating practices were made. In an effort to increase bottle reliability, lining trials were initiated. Among the trials, a monolithic lining was installed and this paper will discuss results of the lining to date.

  15. Transthoracic Lines Infants and children undergoing open heart

    E-Print Network [OSTI]

    Kay, Mark A.

    physician. All lines should have either heparinized saline or D5W infusing. Change the dressing with sternal by side. Normal RA values are 1-7mmHg. Transduce one port; vasoactive infusions typically are in the other port. Avoid infusing other solutions with vasoactive infusions. The RA line may be used for continuous

  16. EC Transmission Line Risk Identification and Analysis

    SciTech Connect (OSTI)

    Bigelow, Tim S

    2012-04-01

    The purpose of this document is to assist in evaluating and planning for the cost, schedule, and technical project risks associated with the delivery and operation of the EC (Electron cyclotron) transmission line system. In general, the major risks that are anticipated to be encountered during the project delivery phase associated with the implementation of the Procurement Arrangement for the EC transmission line system are associated with: (1) Undefined or changing requirements (e.g., functional or regulatory requirements) (2) Underperformance of prototype, first unit, or production components during testing (3) Unavailability of qualified vendors for critical components Technical risks associated with the design and operation of the system are also identified.

  17. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, H.; Lin-Liu, Y.R.; DeGrassie, J.S.

    1991-08-27

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other. 5 figures.

  18. Printed circuit dispersive transmission line

    DOE Patents [OSTI]

    Ikezi, Hiroyuki (Rancho Santa Fe, CA); Lin-Liu, Yuh-Ren (San Diego, CA); DeGrassie, John S. (Encinitas, CA)

    1991-01-01

    A printed circuit dispersive transmission line structure is disclosed comprising an insulator, a ground plane formed on one surface of the insulator, a first transmission line formed on a second surface of the insulator, and a second transmission line also formed on the second surface of the insulator and of longer length than the first transmission line and periodically intersecting the first transmission line. In a preferred embodiment, the transmission line structure exhibits highly dispersive characteristics by designing the length of one of the transmission line between two adjacent periodic intersections to be longer than the other.

  19. Drill string transmission line

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David S. (Lehi, UT); Bradford, Kline (Orem, UT); Fox, Joe (Spanish Fork, UT)

    2006-03-28

    A transmission line assembly for transmitting information along a downhole tool comprising a pin end, a box end, and a central bore traveling between the pin end and the box end, is disclosed in one embodiment of the invention as including a protective conduit. A transmission line is routed through the protective conduit. The protective conduit is routed through the central bore and the ends of the protective conduit are routed through channels formed in the pin end and box end of the downhole tool. The protective conduit is elastically forced into a spiral or other non-linear path along the interior surface of the central bore by compressing the protective conduit to a length within the downhole tool shorter than the protective conduit.

  20. Holes in Spectral Lines

    E-Print Network [OSTI]

    Fontana, Peter R.; Srivastava, Rajendra P.

    1973-06-01

    at E = 0 is 2le I' Ib/(t)I = @~ R~R~~»nh'(IRlyt)e"'" (13)a ylal 0 5 '7 FIG. 3. Probabilities of photon emission as a function of time. The frequency corresponds to the energy differ- ence between the unperturbed degenerate excited states and the ground... states 6 is 0. 5 ey. For V= 0 the emission line is Lorentzian, but for V0 a "hole" appears at the frequency equal to the frequency difference between the excited nondecay- ing state and the ground state. The position of the "hole" is independent...

  1. The Line Verifier GVERIFY1

    E-Print Network [OSTI]

    Griffith, Arnold K.

    1971-01-01

    A line verifier is presented which, given the co-ordinates of the end points of the hypothesized line, returns a (possibly) more accurate version of the end points, together with an estimate of the probability that there ...

  2. Transmission Line Circuit Alexander Glasser

    E-Print Network [OSTI]

    Anlage, Steven

    Chaos in a Transmission Line Circuit Alexander Glasser Marshal Miller With... Prof. Edward Ott Prof times become shorter, circuit connections behave more and more like transmission lines. Theoretical(t) - Transmission Line (Zo, T) #12;5 Cf/Cr 1000 Vf Capacitance Voltage Cf Cr Model for Nonlinear Capacitor

  3. Maintaining the closed magnetic-field-line topology of a field-reversed configuration (FRC)

    E-Print Network [OSTI]

    not significantly change the FRC's closed field structure. The FRC is an example of a self-organized plasma wherein field-line closure analysis. The study of field-line closure for FRC-like plasmas with transverse1 Maintaining the closed magnetic-field-line topology of a field-reversed configuration (FRC

  4. Plains and Eastern Clean Line Transmission Line: Comment from Change.org |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary Areas ofEnergy OnPeter B.EnergyInPilgrim6,and

  5. Plains and Eastern Clean Line Transmission Line: Comment from Change.org |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary Areas ofEnergy OnPeter B.EnergyInPilgrim6,andDepartment

  6. Climate Change and Conceptual Change

    E-Print Network [OSTI]

    Clark, David Joseph

    2013-01-01

    1.1.2 The Stark Reality of Climate Change . . . . . . . .1.2 Climate Change as a BehavioralEducation for Climate Change . . . . 1.4.1 The Numerically

  7. Plains and Eastern Clean Line Transmission Line: Federal Register...

    Energy Savers [EERE]

    Clean Line project. The project would include an overhead 600-kilovolt (kv) high voltage, direct current electric transmission system and associated facilities with the capacity to...

  8. Proposed Project: Plains & Eastern Clean Line Transmission Line...

    Energy Savers [EERE]

    & Eastern Clean Line project (the proposed project) would include an overhead +- 600 kV direct current electric transmission system and associated facilities with the capacity to...

  9. Fe xxv line profiles in colliding wind binaries

    E-Print Network [OSTI]

    Rauw, Gregor; Naze, Yael

    2015-01-01

    Strong wind-wind collisions in massive binaries generate a very hot plasma that frequently produces a moderately strong iron line. The morphology of this line depends upon the properties of the wind interaction zone and its orientation with respect to the line of sight. As the binary components revolve around their common centre of mass, the line profiles are thus expected to vary. With the advent of the next generation of X-ray observatories (Astro-H, Athena) that will offer high-resolution spectroscopy above 6 keV, it will become possible to exploit these changes as the most sensitive probe of the inner parts of the colliding wind interaction. Using a simple prescription of the wind-wind interaction in an early-type binary, we have generated synthetic line profiles for a number of configurations and orbital phases. These profiles can help constrain the properties of the stellar winds in such binary systems.

  10. Giant vacuum forces via transmission lines

    E-Print Network [OSTI]

    Ephraim Shahmoon; Igor Mazets; Gershon Kurizki

    2014-07-23

    Quantum electromagnetic fluctuations induce forces between neutral particles, known as the van der Waals (vdW) and Casimir interactions. These fundamental forces, mediated by virtual photons from the vacuum, play an important role in basic physics and chemistry, and in emerging technologies involving, e.g. micro-electromechanical systems or quantum information processing. Here we show that these interactions can be enhanced by many orders of magnitude upon changing the character of the mediating vacuum-modes. By considering two polarizable particles in the vicinity of any standard electric transmission line, along which photons can propagate in one dimension (1d), we find a much stronger and longer-range interaction than in free-space. This enhancement may have profound implications on many-particle and bulk systems, and impact the quantum technologies mentioned above. The predicted giant vacuum force is estimated to be measurable in a coplanar waveguide line.

  11. Bipolar pulse forming line

    DOE Patents [OSTI]

    Rhodes, Mark A. (Pleasanton, CA)

    2008-10-21

    A bipolar pulse forming transmission line module for linear induction accelerators having first, second, third, fourth, and fifth planar conductors which form an interleaved stack with dielectric layers between the conductors. Each conductor has a first end, and a second end adjacent an acceleration axis. The first and second planar conductors are connected to each other at the second ends, the fourth and fifth planar conductors are connected to each other at the second ends, and the first and fifth planar conductors are connected to each other at the first ends via a shorting plate adjacent the first ends. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short a high voltage from the first end of the third planar conductor to the first end of the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral. Improved access to the switch is enabled by an aperture through the shorting plate and the proximity of the aperture to the switch.

  12. EC Transmission Line Materials

    SciTech Connect (OSTI)

    Bigelow, Tim S

    2012-05-01

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  13. Image-line voltage controlled oscillators and grating antennas 

    E-Print Network [OSTI]

    Kirk, Alexander MacDonald

    1991-01-01

    Chair of Advisory Committee: Dr. Kai Chang A novel active antenna is proposed with an image-line construction. An image-line Gunn diode oscillator utilizing a cap resonator, for frequency stability, is the source module for the antenna. A varactor... is added to the source module for frequency tuning. Combining Gunn diode bias and varactor tuning, 2 percent electronic tuning bandwidth in the X-band has been achieved. The source module is an integral part of an image-line periodic grating antenna...

  14. Emergency pipe line repair connects subsea pipe lines

    SciTech Connect (OSTI)

    Lerique, M.P.; Thiberge, P. ); Wright, N. )

    1990-11-01

    Emergency repair of any subsea line pipe must form a high-integrity, metal-to-metal seal. This paper presents a remote, diverless repair system that utilizes master flanges, a connector and a spool piece to repair line pipe in deep offshore waters.

  15. Pulse shaping with transmission lines

    DOE Patents [OSTI]

    Wilcox, Russell B. (Oakland, CA)

    1987-01-01

    A method and apparatus for forming shaped voltage pulses uses passive reflection from a transmission line with nonuniform impedance. The impedance of the reflecting line varies with length in accordance with the desired pulse shape. A high voltage input pulse is transmitted to the reflecting line. A reflected pulse is produced having the desired shape and is transmitted by pulse removal means to a load. Light activated photoconductive switches made of silicon can be utilized. The pulse shaper can be used to drive a Pockels cell to produce shaped optical pulses.

  16. Electrical transmission line diametrical retainer

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2004-12-14

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within down hole components. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to with stand the tension and compression of drill pipe during routine drilling cycles.

  17. Change Log

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

    Log NERSC-8 Trinity Benchmarks Change Log 09032013 Correction applied to MiniDFT web-page (to remove inconsistency with MiniDFT README). Capability Improvement...

  18. User Experiment Time-Line

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

    User Experiment Time-Line Event Target Call for proposal 2 months before proposals are due PAC Proposals Due 7 weeks before PAC meeting TAC Report for PAC Proposals (includes...

  19. The beauty of laser lines

    E-Print Network [OSTI]

    Kim, Sue-Mie

    1993-01-01

    A line, the simplest way to express an artist's feelings or interpretation of an object, has its own emotions that an artist can employ for her purpose. Laser light, the most self-concentrated, self-sustained and directed, ...

  20. Fin-line horn antenna

    DOE Patents [OSTI]

    Reindel, John (San Diego, CA)

    1990-01-01

    A fin line circuit card containing a fin line slot feeds a dipole antenna ich extends a quarterwave outside the waveguide and provides an energy beam focal point at or near the open end of the waveguide. The dipole antenna thus maintains a wide and nearly constant beamwidth, low VSWR and a circular symmetric radiation pattern for use in electronic warfare direction finding and surveillance applications.

  1. Constraining fundamental constant evolution with HI and OH lines

    E-Print Network [OSTI]

    N. Kanekar; G. I. Langston; J. T. Stocke; C. L. Carilli; K. L. Menten

    2012-01-16

    We report deep Green Bank Telescope spectroscopy in the redshifted HI 21cm and OH 18cm lines from the $z = 0.765$ absorption system towards PMN J0134-0931. A comparison between the "satellite" OH 18cm line redshifts, or between the redshifts of the HI 21cm and "main" OH 18cm lines, is sensitive to changes in different combinations of three fundamental constants, the fine structure constant $\\alpha$, the proton-electron mass ratio $\\mu \\equiv m_p/m_e$ and the proton g-factor $g_p$. We find that the satellite OH 18cm lines are not perfectly conjugate, with both different line shapes and stronger 1612 MHz absorption than 1720 MHz emission. This implies that the satellite lines of this absorber are not suitable to probe fundamental constant evolution. A comparison between the redshifts of the HI 21cm and OH 18cm lines, via a multi-Gaussian fit, yields the strong constraint $[\\Delta F/F] = [-5.2 \\pm 4.3] \\times 10^{-6}$, where $F \\equiv g_p [\\mu \\alpha^2]^{1.57}$ and the error budget includes contributions from both statistical and systematic errors. We thus find no evidence for a change in the constants between $z = 0.765$ and the present epoch. Incorporating the constraint $[\\Delta \\mu/\\mu ] < 3.6 \\times 10^{-7}$ from another absorber at a similar redshift and assuming that fractional changes in $g_p$ are much smaller than those in $\\alpha$, we obtain $[\\Delta \\alpha/\\alpha ] = (-1.7 \\pm 1.4) \\times 10^{-6}$ over a lookback time of 6.7 Gyrs.

  2. California State University, Long Beach PURCHASE/CHANGE REQUEST

    E-Print Network [OSTI]

    Sorin, Eric J.

    : LBCMP LBFDN LB49R Request Type: New Request Change Request Change Req/P.O. # Date: Requestor Email: CHARTFIELD & LINE INFORMATION (Split distribution requires online requisition entry) Account* Fund ID Dept ID description page included in total cost Quantity UOM Unit Price Tax (Y/N) Line Total *Optional Fields

  3. Continuous Change Institutional Change Principle

    Broader source: Energy.gov [DOE]

    ecause it takes time to establish institutional change, federal agencies need multiyear plans that continuously work to achieve, reinforce, and improve significant and persistent sustainability goals.

  4. Multiple gamma lines from semi-annihilation

    E-Print Network [OSTI]

    D'Eramo, Francesco

    Hints in the Fermi data for a 130 GeV gamma line from the galactic center have ignited interest in potential gamma line signatures of dark matter. Explanations of this line based on dark matter annihilation face a parametric ...

  5. The Pulse Line Ion Accelerator Concept

    E-Print Network [OSTI]

    Briggs, Richard J.

    2006-01-01

    field model of the pulse- line accelerator; relationship to3, 2006 LBNL-59492 The pulse line ion accelerator conceptCalifornia, 94507 The Pulse Line Ion Accelerator concept was

  6. CSCE 330 Fall 2000 Notes on Denotational Semantics

    E-Print Network [OSTI]

    Valtorta, Marco

    to conditionals and while pretest loops. The state of a program P (at a given time) is a triple, s P =memP ; i P ; o P >, where #15; memP : IdP ! Z [ fundefg memP is called the memory function, and it givesEX : EX #2; S ! Z [ ferrorg dsemEX (E; s) = error if s =mem; i; o > and mem(v) = undef for some variable

  7. OPERADS AND KNOT SPACES 1. Introduction Let Em denote the ...

    E-Print Network [OSTI]

    Knot space models through homotopy limits of configuration spaces ..... These properties led to this construction's independent discovery, its ...... to check, as repeating coordinates and passing to the quotient ˜Ck?[Rm]? are processes which.

  8. The COMPTEL instrumental line background

    E-Print Network [OSTI]

    G. Weidenspointner; M. Varendorff; U. Oberlack; D. Morris; S. Plueschke; R. Diehl; S. C. Kappadath; M. McConnell; J. Ryan; V. Schoenfelder; H. Steinle

    2000-12-14

    The instrumental line background of the Compton telescope COMPTEL onboard the Compton Gamma-Ray Observatory is due to the activation and/or decay of many isotopes. The major components of this background can be attributed to eight individual isotopes, namely 2D, 22Na, 24Na, 28Al, 40K, 52Mn, 57Ni, and 208Tl. The identification of instrumental lines with specific isotopes is based on the line energies as well as on the variation of the event rate with time, cosmic-ray intensity, and deposited radiation dose during passages through the South-Atlantic Anomaly. The characteristic variation of the event rate due to a specific isotope depends on its life-time, orbital parameters such as the altitude of the satellite above Earth, and the solar cycle. A detailed understanding of the background contributions from instrumental lines is crucial at MeV energies for measuring the cosmic diffuse gamma-ray background and for observing gamma-ray line emission in the interstellar medium or from supernovae and their remnants. Procedures to determine the event rate from each background isotope are described, and their average activity in spacecraft materials over the first seven years of the mission is estimated.

  9. Grand Coulee Transmission Line Replacement Project

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

    & Reliability Projects Expand Projects Skip navigation links Line Projects Big Eddy-Knight Central Ferry Lower Monumental Grand Coulee Transmission Line Replacement...

  10. Transmission Line MTF: Magnetized Target Fusion

    E-Print Network [OSTI]

    Transmission Line MTF: Magnetized Target Fusion Initial target: preheated & magnetized Subsequent for the FRC. Abstract Block Diagram theta coil transmission line Bias cap. bank maincapacitor inductor PI cap

  11. What can emission lines tell us?

    E-Print Network [OSTI]

    G. Stasinska

    2007-04-03

    1 Generalities 2 Empirical diagnostics based on emission lines 3 Photoionization modelling 4 Pending questions 5 Appendix: Lists of useful lines and how to deal with them

  12. Coiled transmission line pulse generators

    DOE Patents [OSTI]

    McDonald, Kenneth Fox (Columbia, MO)

    2010-11-09

    Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

  13. Change Log

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1,CenterJohnCeremony TheChallenges andChange LogChange

  14. The Silver Lining of Downsizing

    E-Print Network [OSTI]

    Reeve, Allison C.; McCray Pearson, Joyce A.

    2014-01-01

    ? EFFICIENCIES IN PROCESSES ? REDUCES REDUNDANCY ? Drafting the plan ?What we envisioned ? Editing ? Stakeholders ? Implementation ? New organization chart ?What did not change ? Its all OK ? Repurposing space for efficient workflow ? Project/task oriented...! ?Working outside your comfort zone ?The art of anticipating change ?5-year plan ?E-books ?Implementing new staff ?Idyllic organization chart ?Acknowledging the positive ?Keeping calm ?Not getting stuck ?Anticipating future change Simon Canick, Library...

  15. EVOLUTIONARY CHANGE the evolution of change management

    E-Print Network [OSTI]

    Emmerich, Michael

    page 1 EVOLUTIONARY CHANGE the evolution of change management by Jeroen van der Zon University, evolutionary change is studied by describing the evolution of Change Manage- ment (CM). CM is one . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 Modelling Change Management

  16. LineVISAR. A fringe-trace data analysis program

    SciTech Connect (OSTI)

    Furnish, Michael D.

    2014-02-01

    The line-imaging ORVIS or VISAR provides velocity as a function of position and time for a line on an experimental setup via a streak camera record of interference fringes. This document describes a Matlab-based program which guides the user through the process of converting these fringe data to a velocity surface. The data reduction is of the "fringe trace" type, wherein the changes in velocity at a given position on the line are calculated based on fringe motion past that point. The analyst must establish the fringe behavior up front, aided by peak-finding routines in the program. However, the later work of using fringe jumps to compensate for phase problems in other analysis techniques is greatly reduced. This program is not a standard GUI construction, and is prescriptive. At various points it saves the progress, allowing later restarts from those points.

  17. The influence of droplet size on line tension

    E-Print Network [OSTI]

    Pawel Jakubczyk Marek Napiorkowski

    2004-06-21

    Within the effective interfacial Hamiltonian approach we evaluate the excess line free energy associated with cylinder-shaped droplets sessile on a stripe-like chemical inhomogeneity of a planar substrate. In the case of short-range intermolecular forces the droplet morphology and the corresponding expression for the line tension - which includes the inhomogeneity finite width effects - are derived and discussed as functions of temperature and increasing width. The width-dependent contributions to the line tension change their structure at the stripe wetting temperature T_W1: for TT_W1 the decay is algebraic. In addition, a geometric construction of the corresponding contact angle is carried out and its implications are discussed.

  18. In-line thermoelectric module

    DOE Patents [OSTI]

    Pento, Robert (Algonquin, IL); Marks, James E. (Glenville, NY); Staffanson, Clifford D. (S. Glens Falls, NY)

    2000-01-01

    A thermoelectric module with a plurality of electricity generating units each having a first end and a second end, the units being arranged first end to second end along an in-line axis. Each unit includes first and second elements each made of a thermoelectric material, an electrically conductive hot member arranged to heat one side of the first element, and an electrically conductive cold member arranged to cool another side of the first element and to cool one side of the second element. The hot member, the first element, the cold member and the second element are supported in a fixture, are electrically connected respectively to provide an electricity generating unit, and are arranged respectively in positions along the in-line axis. The individual components of each generating unit and the respective generating units are clamped in their in-line positions by a loading bolt at one end of the fixture and a stop wall at the other end of the fixture. The hot members may have a T-shape and the cold members an hourglass shape to facilitate heat transfer. The direction of heat transfer through the hot members may be perpendicular to the direction of heat transfer through the cold members, and both of these heat transfer directions may be perpendicular to the direction of current flow through the module.

  19. While future changes in emission are the largest uncertainty on future climate change, another

    E-Print Network [OSTI]

    Allan, Richard P.

    While future changes in emission are the largest uncertainty on future climate change, another. Above, the thick lines show different possible future scenarios (Representative Concentration Pathways) ranging from low emission (RCP2.6) up to high emission (RCP 8.5) which explain a large range in future

  20. Climate Change 2007: Mitigation of Climate Change.

    E-Print Network [OSTI]

    Schiavon, Stefano; Zecchin, Roberto

    2007-01-01

    2007: Mitigation of Climate Change. Full report. WorkingIntergovernmental Panel on Climate Change www.webcda.it LaIntergovernmental Panel on Climate Change”. Il Rapporto

  1. Solar spectral irradiance changes during cycle 24

    SciTech Connect (OSTI)

    Marchenko, S. V.; DeLand, M. T.

    2014-07-10

    We use solar spectra obtained by the Ozone Monitoring Instrument (OMI) on board the Aura satellite to detect and follow long-term (years) and short-term (weeks) changes in the solar spectral irradiance (SSI) in the 265-500 nm spectral range. During solar Cycle 24, in the relatively line-free regions the SSI changed by ?0.6% ± 0.2% around 265 nm. These changes gradually diminish to 0.15% ± 0.20% at 500 nm. All strong spectral lines and blends, with the notable exception of the upper Balmer lines, vary in unison with the solar 'continuum'. Besides the lines with strong chromospheric components, the most involved species include Fe I blends and all prominent CH, NH, and CN spectral bands. Following the general trend seen in the solar 'continuum', the variability of spectral lines also decreases toward longer wavelengths. The long-term solar cycle SSI changes are closely, to within the quoted 0.1%-0.2% uncertainties, matched by the appropriately adjusted short-term SSI variations derived from the 27 day rotational modulation cycles. This further strengthens and broadens the prevailing notion about the general scalability of the UV SSI variability to the emissivity changes in the Mg II 280 nm doublet on timescales from weeks to years. We also detect subtle deviations from this general rule: the prominent spectral lines and blends at ? ? 350 nm show slightly more pronounced 27 day SSI changes when compared to the long-term (years) trends. We merge the solar data from Cycle 21 with the current Cycle 24 OMI and GOME-2 observations and provide normalized SSI variations for the 170-795 nm spectral region.

  2. A New, Harder Proof That Continuous Functions With Schwarz Derivative 0 Are Lines

    E-Print Network [OSTI]

    Ash, J. Marshall

    functions denoted by capital Roman letters or by Greek letters will be real-valued functions of a real variable, and all functions denoted by lower case Roman letters will be maps from R2 to R. The above limit ; whenever the right hand side exists. The next, and more or less climactic, step of the proof

  3. Change Number

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene Network ShapingDate: M-16-04-04 Federal FacilityChange Number

  4. Change Number

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene Network ShapingDate: M-16-04-04 Federal FacilityChange

  5. CS Chang

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1, 2013, 4:15pmEnergyNovemberCompute 1CS Chang CS

  6. Change Log

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits &BradburyMay 1,CenterJohnCeremony TheChallenges andChange Log

  7. NETL LINES OF DEMARCATION 09282012

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on771/6/14 Contact: Janet Lambert Reviewed: 3/5/14 Page 1 of 178LINES

  8. Board of Visitors Vice President for

    E-Print Network [OSTI]

    · Training & Development · Executive Secretary of the BOV** · Governmental Relations · Institutional Equity ** denotes areas with dotted line to BOV *** denotes dotted line reporting to VP for Academic Affairs

  9. Capillary electrophoresis-fluorescence line narrowing system (CE-FLNS) for on-line structural characterization

    DOE Patents [OSTI]

    Jankowiak, Ryszard J. (Ames, IA); Small, Gerald J. (Ames, IA); Shields, Peter A. (Reading, MA)

    1999-04-27

    Capillary electrophoresis (CE) is interfaced with low temperature fluorescence line-narrowing (FLN) spectroscopy for on-line structural characterization of separated molecular analytes.

  10. Capillary electrophoresis-fluorescence line narrowing system (CE-FLNS) for on-line structural characterization

    DOE Patents [OSTI]

    Jankowiak, R.J.; Small, G.J.; Shields, P.A.

    1999-04-27

    Capillary electrophoresis (CE) is interfaced with low temperature fluorescence line-narrowing (FLN) spectroscopy for on-line structural characterization of separated molecular analytes. 21 figs.

  11. Coordination of Transmission Line Transfer Capabilities

    E-Print Network [OSTI]

    Coordination of Transmission Line Transfer Capabilities Final Project Report Power Systems since 1996 PSERC #12;Power Systems Engineering Research Center Coordination of Transmission Line Industry Representative Richard Goddard Portland General Electric Research Team Students Yuan Li Yonghong

  12. Nondestructive Testing of Rail Tunnel Linings 

    E-Print Network [OSTI]

    Williams, Nathan Douglas

    2014-11-14

    potential problems and then test those areas with slow, detailed methods. This would provide a more thorough investigation of the tunnel lining’s health. Infrared thermography (IRT), ground penetrating radar (GPR), and ultrasonic tomography (UST) techniques...

  13. World-line approach to Sign Problems

    E-Print Network [OSTI]

    Aarts, Gert

    World-line approach to Sign Problems Shailesh Chandrasekharan Duke University #12;Outline XY model + chemical potential world-line approach solving the silver blaze problem! Two component bosons + Abelian world-line approach solving the silver blaze problem! more flavors + solving sign problems

  14. Linear rotary optical delay lines Maksim Skorobogatiy*

    E-Print Network [OSTI]

    Skorobogatiy, Maksim

    Linear rotary optical delay lines Maksim Skorobogatiy* Department of Engineering Physics, École of analytical and semi-analytical solutions for the design of high-speed rotary optical delay lines that use of optical delay. Finally, two prototypes of rotary delay lines were fabricated using CNC machining

  15. Mode propagation and attenuation in lined ducts

    E-Print Network [OSTI]

    BI, Wenping

    2014-01-01

    Optimal impedance for each mode is an important concept in an infinitely long duct lined with uniform absorption material. However it is not valid for finite length linings. This is because that the modes in lined ducts are not power-orthogonal; the total sound power is not equal to the sum of the sound power of each mode; cross-power terms may play important roles. In this paper, we study sound propagation and attenuation in an infinite rigid duct lined with a finite length of lining impedance. The lining impedance may be axial segments and circumferentially non-uniform. We propose two new physical quantities Kp and S to describe the self-overlap of the left eigenfunction and right eigenfunction of one mode and the normalized overlap between modes, respectively. The two new physical quantities describe totally the mode behaviors in lined ducts.

  16. Unsplit bipolar pulse forming line

    DOE Patents [OSTI]

    Rhodes, Mark A. (Pleasanton, CA)

    2011-05-24

    A bipolar pulse forming transmission line module and system for linear induction accelerators having first, second, third, and fourth planar conductors which form a sequentially arranged interleaved stack having opposing first and second ends, with dielectric layers between the conductors. The first and second planar conductors are connected to each other at the first end, and the first and fourth planar conductors are connected to each other at the second end via a shorting plate. The third planar conductor is electrically connectable to a high voltage source, and an internal switch functions to short at the first end a high voltage from the third planar conductor to the fourth planar conductor to produce a bipolar pulse at the acceleration axis with a zero net time integral. Improved access to the switch is enabled by an aperture through the shorting plate and the proximity of the aperture to the switch.

  17. Magnetically insulated transmission line oscillator

    DOE Patents [OSTI]

    Bacon, L.D.; Ballard, W.P.; Clark, M.C.; Marder, B.M.

    1987-05-19

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields are produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap. 11 figs.

  18. Superconducting transmission line particle detector

    DOE Patents [OSTI]

    Gray, Kenneth E. (Naperville, IL)

    1989-01-01

    A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non-superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propogating in a superconducting transmission line are used to resolve N.sup.2 ambiguity of charged particle events.

  19. Magnetically insulated transmission line oscillator

    DOE Patents [OSTI]

    Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

    1988-01-01

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

  20. Gamma-Ray Burst Lines

    E-Print Network [OSTI]

    Michael S. Briggs

    1999-10-20

    The evidence for spectral features in gamma-ray bursts is summarized. As a guide for evaluating the evidence, the properties of gamma-ray detectors and the methods of analyzing gamma-ray spectra are reviewed. In the 1980's, observations indicated that absorption features below 100 keV were present in a large fraction of bright gamma-ray bursts. There were also reports of emission features around 400 keV. During the 1990's the situation has become much less clear. A small fraction of bursts observed with BATSE have statistically significant low-energy features, but the reality of the features is suspect because in several cases the data of the BATSE detectors appear to be inconsistent. Furthermore, most of the possible features appear in emission rather than the expected absorption. Analysis of data from other instruments has either not been finalized or has not detected lines.

  1. Microlensing induced absorption line variability

    E-Print Network [OSTI]

    Geraint F. Lewis; Rodrigo A. Ibata

    2002-12-02

    Gravitational microlensing has proven to be a powerful probe of both the structure at the heart of quasars and the mass function of compact objects in foreground lenses. This paper examines the potential of gravitational microlensing in probing the scale of structure in absorbing material within the lensing galaxy. We find that, in this high optical depth regime, significant variations in the equivalent width of absorption features can be induced, although the details of these are dependent upon the scale of structure of the absorbing material. The paper concludes with an examination of the absorption line variability observed in the gravitationally lensed quasar PKS1830-211, demonstrating how this may indicate the presence of small scale structure in the cold molecular gas present within the lensing galaxy.

  2. Superconducting transmission line particle detector

    DOE Patents [OSTI]

    Gray, K.E.

    1988-07-28

    A microvertex particle detector for use in a high energy physic collider including a plurality of parallel superconducting thin film strips separated from a superconducting ground plane by an insulating layer to form a plurality of superconducting waveguides. The microvertex particle detector indicates passage of a charged subatomic particle by measuring a voltage pulse measured across a superconducting waveguide caused by the transition of the superconducting thin film strip from a superconducting to a non- superconducting state in response to the passage of a charged particle. A plurality of superconducting thin film strips in two orthogonal planes plus the slow electromagnetic wave propagating in a superconducting transmission line are used to resolve N/sup 2/ ambiguity of charged particle events. 6 figs.

  3. Supplemental On-Line Materials Supplemental on line materials 1 of 12

    E-Print Network [OSTI]

    Bishop, James K.B.

    Supplemental On-Line Materials Supplemental on line materials 1 of 12 Robotic ObservationsX: Enhanced Carbon Biomass and Export at 55S Supplemental on line materials 2 of 12 Carbon Explorer / Patch to NZ B #12;Bishop et al. SOFeX: Enhanced Carbon Biomass and Export at 55S Supplemental on line

  4. Boron-Lined Neutron Detector Measurements

    SciTech Connect (OSTI)

    Lintereur, Azaree T.; Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Siciliano, Edward R.; Woodring, Mitchell L.

    2010-03-07

    PNNL-18938 Revision Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of a newly designed boron-lined proportional counter option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of two successive prototypes of a system manufactured by GE Reuter Stokes.

  5. Boron-Lined Neutron Detector Measurements

    SciTech Connect (OSTI)

    Lintereur, Azaree T.; Kouzes, Richard T.; Ely, James H.; Erikson, Luke E.; Siciliano, Edward R.

    2009-11-02

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of a newly designed boron-lined proportional counter option. This testing measured the neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Reuter Stokes.

  6. Contact lines for fluid surface adhesion

    E-Print Network [OSTI]

    Markus Deserno; Martin M. Mueller; Jemal Guven

    2007-03-01

    When a fluid surface adheres to a substrate, the location of the contact line adjusts in order to minimize the overall energy. This adhesion balance implies boundary conditions which depend on the characteristic surface deformation energies. We develop a general geometrical framework within which these conditions can be systematically derived. We treat both adhesion to a rigid substrate as well as adhesion between two fluid surfaces, and illustrate our general results for several important Hamiltonians involving both curvature and curvature gradients. Some of these have previously been studied using very different techniques, others are to our knowledge new. What becomes clear in our approach is that, except for capillary phenomena, these boundary conditions are not the manifestation of a local force balance, even if the concept of surface stress is properly generalized. Hamiltonians containing higher order surface derivatives are not just sensitive to boundary translations but also notice changes in slope or even curvature. Both the necessity and the functional form of the corresponding additional contributions follow readily from our treatment.

  7. Ionization energy shift of characteristic K x-ray lines from high-Z materials for plasma diagnostics

    SciTech Connect (OSTI)

    S?abkowska, K.; Szyma?ska, E.; Polasik, M.; Pereira, N. R.; Rzadkiewicz, J.; Seely, J. F.; Weber, B. V.; Schumer, J. W.

    2014-03-15

    The energy of the characteristic x-rays emitted by high atomic number atoms in a plasma that contains energetic electrons depends on the atom's ionization. For tungsten, the ionization energy shift of the L-lines has recently been used to diagnose the plasma's ionization; the change in energy of a K-line has been measured for iridium and observed for ytterbium. Here, we present detailed computations of the ionization energy shift to K-lines of these and an additional element, dysprosium; for these atoms, some K-lines nearly coincide in energy with K-edges of slightly lower Z atoms so that a change in transmission behind a K-edge filter betrays a change in energy. The ionization energy shift of such high-energy K-lines may enable a unique diagnostic when the plasma is inside an otherwise opaque enclosure such as hohlraums used on the National Ignition Facility.

  8. Accounting for the Change in the Gradient: Health Inequality among Infants

    E-Print Network [OSTI]

    Lin, Wanchuan

    2006-01-01

    Accounting for the Change in the Gradient: Health InequalityLine Working Paper Series Accounting for the Change in thethe most important factor in accounting for the closing gap.

  9. 2013 EIA-821 SURVEY: LINE-BY-LINE REFERENCE GUIDE

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustments (Billion Cubic Feet)DecadeYearEnergyPresentationsWeekU.S.Changing Natural GasMillion conference3

  10. Utilizing automatically collected data to infer travel behavior : a case study of the East London Line extension

    E-Print Network [OSTI]

    Muhs, Kevin J. (Kevin Joseph)

    2012-01-01

    Utilizing automatically collected data sources, this research strengthens the understanding of changes in user travel behavior caused by the introduction of the extended East London Line (ELL) into London's public ...

  11. NSLS-II Transport Line Progress

    SciTech Connect (OSTI)

    Fliller R. P.; Wahl, W.; Anderson, A.; Benish, B.; DeBoer, W.; Ganetis, G.; Heese, R.; Hseuh, H.-C.; Hu, J.-P.; Johanson, M.P.; Kosciuk, B.N.; Padrazo, D.; Roy, K.; Shaftan, T.; Singh, O.; Tuozzolo, J.; Wang, G.

    2012-05-20

    The National Synchrotron Light Source II (NSLS-II) is a state-of-the-art 3-GeV third generation light source currently under construction at Brookhaven National Laboratory. The NSLS-II injection system consists of a 200 MeV linac, a 3-GeV booster synchrotron and associated transfer lines. The first part of the Linac to Booster Transport (LBT) line has been installed for linac commissioning. This part includes all components necessary to commission the NSLS-II linac. The second part of this transport line is undergoing installation. Initial results of hardware commissioning will be discussed. The Booster to Storage Ring (BSR) transport line underwent a design review. The first part of the BSR transport line, consisting of all components necessary to commission the booster will be installed in 2012 for booster commissioning. We report on the final design of the BSR line along with the plan to commission the booster.

  12. Single transmission line data acquisition system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV)

    1984-01-01

    A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensors monitor specific process variables and transmit measurement values over the single transmission line to a master station when addressed by the master station. Power for all remote stations (up to 980) is provided by driving the line with constant voltage supplied from the master station and automatically maintained independent of the number of remote stations directly connected to the line. The transmission line can be an RG-62 coaxial cable with lengths up to about 10,000 feet with branches up to 500 feet. The remote stations can be attached randomly along the line. The remote stations can be scanned at rates up to 980 channels/second.

  13. Wilson Line Integrals in the Unparticle Action

    E-Print Network [OSTI]

    A. Lewis Licht

    2008-05-25

    We consider the unparticle action that is made gauge invariant by inclusion of an open Wilson line factor. In deriving vertexes from such an action it has been customary to use a form of differentiating the Wilson line originally proposed by Mandelstam. Using a simple example, we show that the Mandelstam derivative is mathematically inconsistent. We show that there are two ways to define differentiation of the Wilson line. The mathematically consistent method is to differentiate the explicit dependence of the line on the endpoint. The other method is a functional derivative and corresponds in a limiting case to the Mandelstam derivative. We also show that the only path that can be used in the Wilson line integral that leaves the unparticle action both Poincare and scale invariant is the straight line.

  14. Gamma-Ray Line Observations with RHESSI

    E-Print Network [OSTI]

    David M. Smith

    2004-04-30

    The Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) has been observing gamma-ray lines from the Sun and the Galaxy since its launch in February 2002. Here I summarize the status of RHESSI observations of solar lines (nuclear de-excitation, neutron capture, and positron annihilation), the lines of $^{26}$Al and $^{60}$Fe from the inner Galaxy, and the search for positron annihilation in novae.

  15. Compensation of Beam Line Polarizing Effects at UE112 of BESSY II

    SciTech Connect (OSTI)

    Bahrdt, J.; Follath, R.; Frentrup, W.; Gaupp, A.; Scheer, M.

    2010-06-23

    Reflections in synchrotron radiation beam lines tend to change the state of polarization of the radiation. This effect is more pronounced for steep angle of incidence, i.e. at low photon energy (say below 100 eV) beam lines. The APPLE II undulator UE112 at BESSY has all four magnetic rows shiftable and thus generates any state of polarization. To provide any intended polarization state at the sample we perform polarization measurements based on simple and fast linear polarization analysis that together with calculations of the undulator radiation predicts undulator settings that cancel beam line polarization effects.

  16. Northern Pass Transmission Line Project Environmental Impact...

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

    the location of the September 26 public scoping meeting for the Northern Pass Transmission Line Project to Colebrook Elementary School, 27 Dumont Street, Colebrook, NH. On...

  17. Transmission Line Security Monitor: Final Report

    SciTech Connect (OSTI)

    John Svoboda

    2011-04-01

    The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

  18. Detonator comprising a nonlinear transmission line

    DOE Patents [OSTI]

    Elizondo-Decanini, Juan M

    2014-12-30

    Detonators are described herein. In a general embodiment, the detonator includes a nonlinear transmission line that has a variable capacitance. Capacitance of the nonlinear transmission line is a function of voltage on the nonlinear transmission line. The nonlinear transmission line receives a voltage pulse from a voltage source and compresses the voltage pulse to generate a trigger signal. Compressing the voltage pulse includes increasing amplitude of the voltage pulse and decreasing length of the voltage pulse in time. An igniter receives the trigger signal and detonates an explosive responsive to receipt of the trigger signal.

  19. DOE Sustainability Reporting Open Line Help Call

    Broader source: Energy.gov [DOE]

    The Sustainability Performance Office (SPO) sponsors open line help calls to assist DOE sites and national laboratories with the annual sustainability reporting process. Representatives from the...

  20. Review: Global Climate Change

    E-Print Network [OSTI]

    Smith, Jennifer

    2013-01-01

    introduction to global climate change, the greenhouseReview: Global Climate Change: A Primer By Orrin H PilkeyPilkey, Keith C. Global Climate Change: a primer. Durham,

  1. Apportioning Climate Change Costs

    E-Print Network [OSTI]

    Farber, Daniel A.

    2008-01-01

    Apportioning Climate Change Costs Daniel A. Farber* I. II.ON CLIMATE CHANGE FOUR QUESTIONS ABOUTof how to respond to climate change. Most public attention

  2. Terahertz Quantum-Cascade Transmission-Line Metamaterials

    E-Print Network [OSTI]

    Tavallaee, Amir Ali

    2012-01-01

    Transmission-Line Metamaterials . . . . . . . Terahertz CRLHCRLH Transmission-Line Metamaterials . . . . . . . 112losses in negative-index metamaterials by optical parametric

  3. Magnetic Field Line Stickiness in Tokamaks

    E-Print Network [OSTI]

    Martins, Caroline G L; Caldas, I L

    2013-01-01

    We present simulated figures of the diverted magnetic field lines of the tokamak ITER, obtained by numerically integrating a Hamiltonian model with electrical currents in five wire loops and control coils. We show evidences of a sticky island embedded in the chaotic region near the divertor plates, which traps magnetic field lines for many toroidal turns increasing their connection lengths to these plates.

  4. Line geometry and electromagnetism I: basic structures

    E-Print Network [OSTI]

    D. H. Delphenich

    2013-09-11

    Some key notions of line geometry are recalled, along with their application to mechanics. It is then shown that most of the basic structures that one introduces in the pre-metric formulation of electromagnetism can be interpreted directly in terms of corresponding concepts in line geometry. The results are summarized in a table.

  5. Cesium D Line Data Daniel Adam Steck

    E-Print Network [OSTI]

    Steck, Daniel A.

    Cesium D Line Data Daniel Adam Steck Oregon Center for Optics and Department of Physics, University 1998. This is revision 2.1.4, 23 December 2010. Cite this document as: Daniel A. Steck, "Cesium D Line and optical properties of cesium that are relevant to various quantum optics experiments. In particular, we

  6. Migrating Automotive Product Lines: a Case Study

    E-Print Network [OSTI]

    Cordy, James R.

    . Software Product Lines (SPL) are widely used to manage variability in the automotive industry. In a rapidly study from an automotive domain, that it is tractable to lift industrial-grade transforma- tionsMigrating Automotive Product Lines: a Case Study Michalis Famelis1 , Levi L´ucio2 , Gehan Selim3

  7. Doering 6/2004 Freezing Cell Lines

    E-Print Network [OSTI]

    Doering, Tamara

    Doering 6/2004 Freezing Cell Lines Overview: This is crucial for maintaining important cell lines in the lab!!! Please freeze down any strain you or others might use in the future, whether that is a crypto personnel won't spend time reconstructing plasmids or strains that weren't kept. Instructions for freezing

  8. Speed-line for 3D animation 

    E-Print Network [OSTI]

    Song, Won Chan

    2007-04-25

    My thesis describes a tool which creates speed-lines automatically in 3D computer animations. Speed-lines are usually used in comic books to express fast motions in a still image. They are also used in 2D animations. Although animations don't need...

  9. Climate Change and Extinctions

    E-Print Network [OSTI]

    Sinervo, Barry

    2013-01-01

    Lectures presents: Climate Change and Extinctions Happening2013. He will present a climate change extinction model that

  10. Broad iron lines in Active Galactic Nuclei

    E-Print Network [OSTI]

    A. C. Fabian; K. Iwasawa; C. S. Reynolds; A. J. Young

    2000-04-26

    An intrinsically narrow line emitted by an accretion disk around a black hole appears broadened and skewed as a result of the Doppler effect and gravitational redshift. The fluorescent iron line in the X-ray band at 6.4-6.9keV is the strongest such line and is seen in the X-ray spectrum of many active galactic nuclei and, in particular, Seyfert galaxies. It is an important diagnostic with which to study the geometry and other properties of the accretion flow very close to the central black hole. The broad iron line indicates the presence of a standard thin accretion disk in those objects, often seen at low inclination. The broad iron line has opened up strong gravitational effects around black holes to observational study with wide-reaching consequences for both astrophysics and physics.

  11. Climate Change Scoping Plan

    E-Print Network [OSTI]

    Climate Change Scoping Plan a amework for change as approved Prepared by the California AirBackgroundBackgroundBackground ............................................................................................................................................................................................................................................................................................................................................................................................................ 4444 1. Climate Change Policy in California1. Climate Change Policy in California1. Climate Change Policy in California1. Climate Change Policy in California

  12. Climate Change Scoping Plan

    E-Print Network [OSTI]

    Climate Change Scoping Plan a amework for change Prepared by the California Air Resources BoardBackgroundBackgroundBackground ............................................................................................................................................................................................................................................................................................................................................................................................................ 4444 1. Climate Change Policy in California1. Climate Change Policy in California1. Climate Change Policy in California1. Climate Change Policy in California

  13. Through the Looking Glass: Off-Line Versus On-Line Coverage of Planar Environments by

    E-Print Network [OSTI]

    Rimon, Elon

    is demonstrated. Due to its many applications, on-line coverage is a highly researched topic in the mobile robotThrough the Looking Glass: Off-Line Versus On-Line Coverage of Planar Environments by a Battery Powered Autonomous Mobile Robot Iddo Shnaps and Elon Rimon Dept. of ME, Technion, Israel Institute

  14. Ethan Burns (UNH) Anticipatory On-line Planning 1 / 22 Anticipatory On-line Planning

    E-Print Network [OSTI]

    Ruml, Wheeler

    Ethan Burns (UNH) Anticipatory On-line Planning ­ 1 / 22 Anticipatory On-line Planning Ethan Burns1 Formalization Hindsight Opt. Experiments Conclusion Ethan Burns (UNH) Anticipatory On-line Planning ­ 2 / 22'd s Contributions Formalization Hindsight Opt. Experiments Conclusion Ethan Burns (UNH) Anticipatory On

  15. Boron-Lined Multichamber and Conventional Neutron Proportional Counter Tests

    SciTech Connect (OSTI)

    Woodring, Mitchell L.; Ely, James H.; Kouzes, Richard T.; Stromswold, David C.

    2010-09-07

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. In addition, a few other companies have detector technologies that might be competitive in the near term as an alternative technology. Reported here are the results of tests of a boron-lined, multichamber proportional counter manufactured by LND, Inc. Also reported are results obtained with an earlier design of conventional, boron-lined, proportional counters from LND. This testing measured the required performance for neutron detection efficiency and gamma-ray rejection capabilities of the detectors.

  16. Measurements of water surface snow lines in classical protoplanetary disks

    E-Print Network [OSTI]

    Blevins, Sandra M; Banzatti, Andrea; Zhang, Ke; Najita, Joan R; Carr, John S; Salyk, Colette; Blake, Geoffrey A

    2015-01-01

    We present deep Herschel-PACS spectroscopy of far-infrared water lines from a sample of four protoplanetary disks around solar-mass stars, selected to have strong water emission at mid-infrared wavelengths. By combining the new Herschel spectra with archival Spitzer-IRS spectroscopy, we retrieve a parameterized radial surface water vapor distribution from 0.1-100 AU using two-dimensional dust and line radiative transfer modeling. The surface water distribution is modeled with a step model comprising of a constant inner and outer relative water abundance and a critical radius at which the surface water abundance is allowed to change. We find that the four disks have critical radii of $\\sim 3-11$ AU, at which the surface water abundance decreases by at least 5 orders of magnitude. The measured values for the critical radius are consistently smaller than the location of the surface snow line, as predicted by the observed spectral energy distribution. This suggests that the sharp drop-off of the surface water abu...

  17. Computing Criticality of Lines in Power Systems

    SciTech Connect (OSTI)

    Pinar, Ali; Reichert, Adam; Lesieutre, Bernard

    2006-10-13

    We propose a computationally efficient method based onnonlinear optimization to identify critical lines, failure of which cancause severe blackouts. Our method computes criticality measure for alllines at a time, as opposed to detecting a single vulnerability,providing a global view of the system. This information on criticality oflines can be used to identify multiple contingencies by selectivelyexploring multiple combinations of broken lines. The effectiveness of ourmethod is demonstrated on the IEEE 30 and 118 bus systems, where we canvery quickly detect the most critical lines in the system and identifysevere multiple contingencies.

  18. Environmental Change Institute Environmental Change Institute

    E-Print Network [OSTI]

    Oxford, University of

    Environmental Change Institute 2012/13 eci Environmental Change Institute #12;ii Environmental 06 Educating environmental leaders 08 Centre for interdisciplinary doctoral training 10 A thriving, Dumfriesshire (ECI) #12;1 The Environmental Change Institute has 21 years' experience in helping governments

  19. Climate change action plan

    E-Print Network [OSTI]

    Delivery Climate change action plan 2009-2011 #12;2 | Climate change action plan ©istockphoto.com #12;Climate Change Action Plan Climate change action plan | 3 Contents Overview 4 Preface and Introduction 5 Climate change predictions for Scotland 6 The role of forestry 7 Protecting and managing

  20. Temperatures in the blast furnace refractory lining

    SciTech Connect (OSTI)

    Hebel, R.; Streuber, C. [Didier-M and P Energietechnik GmbH, Wiesbaden (Germany); Steiger, R. [Didier-M and P Engineering Services, Highland, IN (United States); Jeschar, R. [TU Clausthal (Germany). Inst. fuer Energieverfahrenstechnik und Brennstofftechnik

    1995-12-01

    The campaign life duration of a blast furnace is mainly determined by the condition of the refractory lining in heavy-duty zones such as the hearth, bosh, belly and lower stack. To achieve a desired lifetime, the temperature of the lining in these areas thereby proved to be the decisive controllable parameter. Low operating temperatures result in prolonged service life and are attained through high cooling efficiency. Besides the refractory grade chosen, the wear profile is mainly determined by the type of cooling system applied and the cooling intensity. Therefore, an appropriate compromise between long service life and energy losses has to be found in each case. In order to predict the service life of a lining it is important to know the wear condition at all times during the campaign. The paper describes the approaches the authors have made so far on European blast furnaces, on a theoretical and practical basis, on how to analyze the lining wear.

  1. DNA Assembly Line for Nano-Construction

    ScienceCinema (OSTI)

    Oleg Gang

    2010-01-08

    Building on the idea of using DNA to link up nanoparticles scientists at Brookhaven National Lab have designed a molecular assembly line for high-precision nano-construction. Nanofabrication is essential for exploiting the unique properties of nanoparticl

  2. Line Environment, Safety and Health Oversight

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

    1997-06-26

    Sets forth the Department's expectations line management environment, safety and health (ES&H) oversight and for the use of contractor self-assessment programs as the cornerstone for this oversight. Canceled by DOE O 226.1.

  3. Productivity Improvement of a Manual Assembly Line 

    E-Print Network [OSTI]

    Yerasi, Pranavi

    2012-10-19

    The current project addresses the productivity improvement of a manual assembly line by making use of operations analysis in the framework of Lean production. A methodology is proposed that helps to improve the productivity of any production process...

  4. Ames Lab 101: Next Generation Power Lines

    ScienceCinema (OSTI)

    Russell, Alan

    2012-08-29

    Ames Laboratory scientist Alan Russell discusses the need to develop new power lines that are stronger and more conductive as a way to address the problem of the nation's aging and inadequate power grid.

  5. Electrical Transmission Line Diametrical Retention Mechanism

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Hall, Jr., H. Tracy (Provo, UT); Pixton, David (Lehi, UT); Dahlgren, Scott (Provo, UT); Sneddon, Cameron (Provo, UT); Briscoe, Michael (Lehi, UT); Fox, Joe (Spanish Fork, UT)

    2006-01-03

    The invention is a mechanism for retaining an electrical transmission line. In one embodiment of the invention it is a system for retaining an electrical transmission line within downhole components. The invention allows a transmission line to be attached to the internal diameter of drilling components that have a substantially uniform drilling diameter. In accordance with one aspect of the invention, the system includes a plurality of downhole components, such as sections of pipe in a drill string, drill collars, heavy weight drill pipe, and jars. The system also includes a coaxial cable running between the first and second end of a drill pipe, the coaxial cable having a conductive tube and a conductive core within it. The invention allows the electrical transmission line to withstand the tension and compression of drill pipe during routine drilling cycles.

  6. On-line chemical composition analyzer development

    SciTech Connect (OSTI)

    Garrison, A.A.

    1993-01-01

    This report relates to the development of an on-line Raman analyzer for control of a distillation column. It is divided into: program issues, experimental control system evaluation, energy savings analysis, and reliability analysis. (DLC)

  7. Line-of-Sight Networks Alan Frieze

    E-Print Network [OSTI]

    Kleinberg, Jon

    -of-sight restrictions. Here we propose a random-graph model incorporating both range limitations and line-of-sight con- 0329064, CNS-0403340, and BCS-0537606; work done in part while on sabbatical leave at Carnegie Mellon

  8. Electrician - Foreman II (Transmission Lines & Substations) ...

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

    Region Transmission Lines and Substation Maintenance (G5200) 615 S. 43rd Avenue Phoenix, AZ 85009 Duty Location is Page, AZ Find out more about living conditions at this...

  9. Design of the ILC RTML Extraction Lines

    SciTech Connect (OSTI)

    Seletskiy, S.; Tenenbaum, P.; Walz, D.; Solyak, N.; /Fermilab

    2011-10-17

    The ILC [1] Damping Ring to the Main Linac beamline (RTML) contains three extraction lines (EL). Each EL can be used both for an emergency abort dumping of the beam and tune-up continual train-by-train extraction. Two of the extraction lines are located downstream of the first and second stages of the RTML bunch compressor, and must accept both compressed and uncompressed beam with energy spreads of 2.5% and 0.15%, respectively. In this paper we report on an optics design that allowed minimizing the length of the extraction lines while offsetting the beam dumps from the main line by the distance required for acceptable radiation levels in the service tunnel. The proposed extraction lines can accommodate beams with different energy spreads while at the same time providing the beam size acceptable for the aluminum dump window. The RTML incorporates three extraction lines, which can be used for either an emergency beam abort or for a train-by-train extraction. The first EL is located downstream of the Damping Ring extraction arc. The other two extraction lines are located downstream of each stage of the two-stage bunch compressor. The first extraction line (EL1) receives 5GeV beam with an 0.15% energy spread. The extraction line located downstream of the first stage of bunch compressor (ELBC1) receives both compressed and uncompressed beam, and therefore must accept beam with both 5 and 4.88GeV energy, and 0.15% and 2.5% energy spread, respectively. The extraction line located after the second stage of the bunch compressor (ELBC2) receives 15GeV beam with either 0.15 or 1.8% energy spread. Each of the three extraction lines is equipped with the 220kW aluminum ball dump, which corresponds to the power of the continuously dumped beam with 5GeV energy, i.e., the beam trains must be delivered to the ELBC2 dump at reduced repetition rate.

  10. Experiences with On-Line STEAMPOP 

    E-Print Network [OSTI]

    Nath, R.; Libby, D. J.; Marcinkowska, A. R.; Skarke, S. C.; Thomasson, M. J.; Worsham, B. A.

    1988-01-01

    manual step to complete the loop. The results of optimization have to be conveyed back to the plant computer responsible for assigning the control set points. In order to automate the above mentioned manual steps, the optimization program has...-Line STEAMPOP R. Nath, D. J. Libby, A. R. Marcinkowska, S. C. Skarke, M. J. Thomasson and B. A. Worsham Union Carbide Corporation Houston, Texas ABSTRACT Off-line utility system optimizers for large process plants are now common place [1...

  11. Prospective Labor Distribution Change Notice (PLDCN) Use the PLDCN to record Current and\\or Future-Dated labor distribution changes.

    E-Print Network [OSTI]

    Snider, Barry B.

    Prospective Labor Distribution Change Notice (PLDCN) Use the PLDCN to record Current and\\or Future-Dated labor distribution changes. NOTE: Specific updates to Job Records (e.g.: transfer, termination, rehire Distribution Changes Current Distribution: represents a current "snapshot," enter the charge- line

  12. How Europe is Changing

    E-Print Network [OSTI]

    Abdolah, Kader

    2012-01-01

    20. Devil 21. Tirannie How Europe is Changing 22. Bin Ladencan swim in a pond," he How Europe is Changing I says. "Yourain falls on his hat. How Europe is Changing An Empty Grave

  13. Climate change cripples forests

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

    Climate Change Cripples Forests Climate change cripples forests A team of scientists concluded that in the warmer and drier Southwest of the near future, widespread tree mortality...

  14. Climate change cripples forests

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

    Climate change cripples forests Climate change cripples forests A team of scientists concluded that in the warmer and drier Southwest of the near future, widespread tree mortality...

  15. New Construction of Distribution Lines, Service Lines, and Appurtenant Facilities in Residential Subdivisions (New York)

    Broader source: Energy.gov [DOE]

    Any proposed construction of electricity-related facilities in residential subdivisions, including distribution and service lines and appurtenant facilities, is subject to these regulations, which...

  16. O.A.R. 734-055 - Pole Lines, Buried Cables, Pipe lines, Signs...

    Open Energy Info (EERE)

    and Operations (1981). Retrieved from "http:en.openei.orgwindex.php?titleO.A.R.734-055-PoleLines,BuriedCables,Pipelines,Signs,Misc.FacilitiesandOperations...

  17. Climatic Change An Interdisciplinary,

    E-Print Network [OSTI]

    Reale, Marco

    1 23 Climatic Change An Interdisciplinary, International Journal Devoted to the Description, Causes and Implications of Climatic Change ISSN 0165-0009 Volume 107 Combined 3-4 Climatic Change (2011) 107:247-265 DOI available until 12 months after publication. #12;Climatic Change (2011) 107:247­265 DOI 10.1007/s10584

  18. Climate Change and Transportation

    E-Print Network [OSTI]

    Minnesota, University of

    1 Climate Change and Transportation Addressing Climate Change in the Absence of Federal Guidelines;6 WSDOT Efforts · Climate Change Team · Project Level GHG Approach · Planning Level GHG Approach · Alternative Fuels Corridor · Recent legislation and research #12;7 WSDOT Efforts: Climate Change Team

  19. Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change, and

    E-Print Network [OSTI]

    1 Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change, and HydrologyHydrology Steven Fassnacht Watershed Science Colorado State University The Importance of Climate · Climate affects the environment and us ­ Ecology: vegetation and animals ­ Water Systems ­ People

  20. Glosten Associates Tests Innovative High-Strength Mooring Lines...

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

    Glosten Associates Tests Innovative High-Strength Mooring Lines for Deepwater Offshore Wind Installations Glosten Associates Tests Innovative High-Strength Mooring Lines for...

  1. Insulate Steam Distribution and Condensate Return Lines, Energy...

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

    2 Insulate Steam Distribution and Condensate Return Lines Uninsulated steam distribution and condensate return lines are a constant source of wasted energy. The table shows typical...

  2. Development of aerogel-lined targets for inertial confinement...

    Office of Scientific and Technical Information (OSTI)

    ThesisDissertation: Development of aerogel-lined targets for inertial confinement fusion experiments Citation Details In-Document Search Title: Development of aerogel-lined...

  3. Variation of the Mn I 539.4 nm line with the solar cycle

    E-Print Network [OSTI]

    Danilovic, S; Livingston, W; Krivova, N; Vince, I

    2015-01-01

    As a part of the long-term program at Kitt Peak National Observatory (KPNO), the Mn I 539.4 nm line has been observed for nearly three solar cycles using the McMath telescope and the 13.5 m spectrograph in double-pass mode. These full-disk spectrophotometric observations revealed an unusually strong change of this line's parameters over the solar cycle. Optical pumping by the Mg II k line was originally proposed to explain these variations. More recent studies have proposed that this is not required and that the magnetic variability might explain it. Magnetic variability is also the mechanism that drives the changes in total solar irradiance variations (TSI). With this work we investigate this proposition quantitatively by using using the model SATIRE-S. We applied exactly the same model atmospheres and value of the free parameter as were used in previous solar irradiance reconstructions to now model the variation in the Mn I 539.4 nm line profile and in neighboring Fe I lines. We compared the results of the ...

  4. Load-resistant coaxial transmission line

    DOE Patents [OSTI]

    Hall, David R.; Fox, Joe

    2006-01-03

    A transmission line for downhole tools that make up all or part of a tool string for drilling and production of oil, gas, and geothermal wells that can withstand the dynamic gravitational forces and other accelerations associated with downhole excavations. The transmission line has a metal tube, or outer conductor, that houses a coaxial wire inner conductor. A non-metallic dielectric material is interposed between the inner and outer conductors. The outer and inner conductors and the dielectric are sufficiently compressed together so that independent motion between them is abated. Compression of the components of the transmission line may be achieved by drawing the transmission through one or more dies in order to draw down the outer conductor onto the dielectric, or by expanding the inner conductor against the dielectric using a mandrel or hydraulic pressure. Non-metallic bead segments may be used in aid of the compression necessary to resist the dynamic forces and accelerations of drilling.

  5. Dynamic Line Rating: Research and Policy Evaluation

    SciTech Connect (OSTI)

    Jake P. Gentle; Kurt S. Myers; Michael R. West

    2014-07-01

    Dynamic Line Rating (DLR) is a smart grid technology that allows the rating of electrical conductors to be increased based on local weather conditions. Overhead lines are conventionally given a conservative rating based on worst case scenarios. We demonstrate that observing the conditions in real time leads to additional capacity and safer operation. This paper provides a report of a pioneering scheme in the United States of America in which DLR has been applied. Thereby, we demonstrate that observing the local weather conditions in real time leads to additional capacity and safer operation. Secondly, we discuss limitations involved. In doing so, we arrive at novel insights which will inform and improve future DLR projects. Third, we provide a policy background and discussion to clarify the technology’s potential and identifies barriers to the imminent adoption of dynamic line rating systems. We provide suggestions for regulatory bodies about possible improvements in policy to encourage adoption of this beneficial technology.

  6. Challenges to Overcurrent Protection Devices under Line-line Faults in Solar Photovoltaic Arrays

    E-Print Network [OSTI]

    Lehman, Brad

    Challenges to Overcurrent Protection Devices under Line-line Faults in Solar Photovoltaic Arrays Ye-MA, LLC Newburyport, MA, US Abstract--Solar photovoltaic (PV) arrays behave distinctively from remain undetected, which could lead to reduced system efficiency, reduced system reliability, and even

  7. Boron-10 Lined Proportional Counter Wall Effects

    SciTech Connect (OSTI)

    Siciliano, Edward R.; Kouzes, Richard T.

    2012-05-01

    The Department of Energy Office of Nuclear Safeguards (NA-241) is supporting the project 'Coincidence Counting With Boron-Based Alternative Neutron Detection Technology' at Pacific Northwest National Laboratory (PNNL) for development of an alternative neutron coincidence counter. The goal of this project is to design, build and demonstrate a boron-lined proportional tube based system in the configuration of a coincidence counter. This report provides information about how variations in proportional counter radius and gas pressure in a typical coincident counter design might affect the observed signal from boron-lined tubes. A discussion comparing tubes to parallel plate counters is also included.

  8. Concurrent Wind Cooling in Power Transmission Lines

    SciTech Connect (OSTI)

    Jake P Gentle

    2012-08-01

    Idaho National Laboratory and the Idaho Power Company, with collaboration from Idaho State University, have been working on a project to monitor wind and other environmental data parameters along certain electrical transmission corridors. The combination of both real-time historical weather and environmental data is being used to model, validate, and recommend possibilities for dynamic operations of the transmission lines for power and energy carrying capacity. The planned results can also be used to influence decisions about proposed design criteria for or upgrades to certain sections of the transmission lines.

  9. Three-phase contact line and line tension of electrolyte solutions in contact with charged substrates

    E-Print Network [OSTI]

    Ingrid Ibagon; Markus Bier; S. Dietrich

    2015-11-16

    The three-phase contact line formed by the intersection of a liquid-vapor interface of an electrolyte solution with a charged planar substrate is studied in terms of classical density functional theory applied to a lattice model. The influence of the substrate charge density and of the ionic strength of the solution on the intrinsic structure of the three-phase contact line and on the corresponding line tension is analyzed. We find a negative line tension for all values of the surface charge density and of the ionic strength considered. The strength of the line tension decreases upon decreasing the contact angle via varying either the temperature or the substrate charge density.

  10. SkyMouse: A smart interface for astronomical on-line resources and services

    E-Print Network [OSTI]

    Chen-Zhou CUI; Hua-Ping SUN; Yong-Heng ZHAO; Yu LUO; Da-Zhi QI

    2007-11-27

    With the development of network and the World Wide Web (WWW), the Internet has been growing and changing dramatically. More and more on-line database systems and different kinds of services are available for astronomy research. How to help users find their way through the jungle of information services becomes an important challenge. Although astronomers have been aware of the importance of interoperability and introduced the concept of Virtual Observatory as a uniform environment for future astronomical on-line resources and services, transparent access to heterogeneous on-line information is still difficult. SkyMouse is a lightweight interface for distributed astronomical on-line resources and services, which is designed and developed by us, i.e., Chinese Virtual Observatory Project. Taking advantage of screen word-capturing technology, different kinds of information systems can be queried through simple mouse actions, and results are returned in a uniform web page. SkyMouse is an easy to use application, aiming to show basic information or to create a comprehensive overview of a specific astronomical object. In this paper current status of on-line resources and services access is reviewed; system architecture, features and functions of SkyMouse are described; challenges for intelligent interface for on-line astronomical resources and services are discussed.

  11. Maintaining the closed magnetic-field-line topology of a field-reversed configuration with the addition of static transverse magnetic fields

    E-Print Network [OSTI]

    Washington at Seattle, University of

    not significantly change the FRC's closed field structure. The FRC is an example of a self-organized plasma wherein motivates the present field-line closure analysis. The study of field-line closure for FRC-like plasmas with the addition of static transverse magnetic fields S. A. Cohen Princeton University, Plasma Physics Laboratory

  12. Molecular cytogenetic characterization of a human thyroid cancercell line

    SciTech Connect (OSTI)

    Weier, Heinz-Ulrich G.; Tuton, Tiffany B.; Ito, Yuko; Chu, LisaW.; Lu, Chung-Mei; Baumgartner, Adolf; Zitzelsberger, Horst F.; Weier,Jingly F.

    2006-01-04

    The incidence of papillary thyroid carcinoma (PTC) increases significantly after exposure of the head and neck region to ionizing radiation, yet we know neither the steps involved in malignant transformation of thyroid epithelium nor the specific carcinogenic mode of action of radiation. Such increased tumor frequency became most evident in children after the 1986 nuclear accident in Chernobyl, Ukraine. In the twelve years following the accident, the average incidence of childhood PTCs (chPTC) increased over one hundred-fold compared to the rate of about 1 tumor incidence per 10{sup 6} children per year prior to 1986. To study the etiology of radiation-induced thyroid cancer, we formed an international consortium to investigate chromosomal changes and altered gene expression in cases of post-Chernobyl chPTC. Our approach is based on karyotyping of primary cultures established from chPTC specimens, establishment of cell lines and studies of genotype-phenotype relationships through high resolution chromosome analysis, DNA/cDNA micro-array studies, and mouse xenografts that test for tumorigenicity. Here, we report the application of fluorescence in situ hybridization (FISH)-based techniques for the molecular cytogenetic characterization of a highly tumorigenic chPTC cell line, S48TK, and its subclones. Using chromosome 9 rearrangements as an example, we describe a new approach termed ''BAC-FISH'' to rapidly delineate chromosomal breakpoints, an important step towards a better understanding of the formation of translocations and their functional consequences.

  13. Boron-Lined Multitube Neutron Proportional Counter Test

    SciTech Connect (OSTI)

    Woodring, Mitchell L.; Ely, James H.; Kouzes, Richard T.; Stromswold, David C.

    2010-09-07

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. These technologies are: 1) Boron trifluoride (BF3)-filled proportional counters, 2) Boron-lined proportional counters, 3) Lithium-loaded glass fibers, and 4) Coated non-scintillating plastic fibers. In addition, a few other companies have detector technologies that might be competitive in the near term as an alternative technology. Reported here are the results of tests of a boron-lined, “multitube” proportional counter manufactured by Centronic Ltd. (Surry, U.K. and Houston, TX). This testing measured the required performance for neutron detection efficiency and gamma-ray rejection capabilities of the detector.

  14. Polar On-Line Acquisition Relay and Transmission System (POLARATS)

    SciTech Connect (OSTI)

    Yuracko, K.

    2004-07-15

    POLARATS (Polar On-Line Acquisition Relay And Transmission System) is being developed by YAHSGS LLC (YAHSGS) and Oak Ridge National Laboratory (ORNL) to provide remote, unattended monitoring of environmental parameters under harsh environmental conditions. In particular, instrumental design and engineering is oriented towards protection of human health in the Arctic, and with the additional goal of advancing Arctic education and research. POLARATS will obtain and transmit environmental data from hardened monitoring devices deployed in locations important to understanding atmospheric and aquatic pollutant migration as it is biomagnified in Arctic food chains. An Internet- and personal computer (PC)-based educational module will provide real time sensor data, on-line educational content, and will be integrated with workbooks and textbooks for use in middle and high school science programs. The educational elements of POLARATS include an Internet-based educational module that will instruct students in the use of the data and how those data fit into changing Arctic environments and food chains. POLARATS will: (1) Enable students, members of the community, and scientific researchers to monitor local environmental conditions in real time over the Internet; and (2) Provide additional educational benefits through integration with middle- and high-school science curricula. Information will be relayed from POLARATS devices to classrooms and libraries along with custom-designed POLARATS teaching materials that will be integrated into existing curricula to enhance the educational benefits realized from the information obtained.

  15. Climate Change, Adaptation, and Development

    E-Print Network [OSTI]

    Cole, Daniel H.

    2008-01-01

    Climate Change, Adaptation, and Development Daniel H. Cole*THE COSTS OF CLIMATE CHANGE . ADAPTATIONCONVENTION ON CLIMATE CHANGE . IV. A.

  16. ABSTRACT OF THESIS LINE ASSOCIATIVE REGISTERS

    E-Print Network [OSTI]

    Dietz, Henry G. "Hank"

    ABSTRACT OF THESIS LINE ASSOCIATIVE REGISTERS As technological advances have improved processor. This thesis takes the approach of trying to create a new memory access model that is more efficient and simple ASSOCIATIVE REGISTERS By Krishna Melarkode Dr. Henry G. Dietz (Director of Thesis) Dr. Yu Ming Zhang (Director

  17. Appendix A Cesium D Line Data

    E-Print Network [OSTI]

    Steck, Daniel A.

    Appendices 249 #12;#12;Appendix A Cesium D Line Data A.1 Overview In this appendix we review many of the physical and optical properties of cesium that are relevant to the experiments in this dissertation. In particular, we give parameters that are useful in treating the mechanical effects of light on cesium atoms

  18. Cesium D Line Data Daniel A. Steck

    E-Print Network [OSTI]

    Steck, Daniel A.

    Cesium D Line Data Daniel A. Steck Theoretical Division (T-8), MS B285 Los Alamos National In this reference we present many of the physical and optical properties of cesium that are relevant to various effects of light on cesium atoms. The measured numbers are given with their original references

  19. Pipelined Asynchronous Circuits Andrew Matthew Lines

    E-Print Network [OSTI]

    Pipelined Asynchronous Circuits Andrew Matthew Lines June 1995, revised June 1998 This thesis building blocks for highly pipelined designs. The first chapter presents the implementation approach for individual cells. The second chapter in­ vestigates the time behavior of complex pipelined circuits

  20. High temperature lined conduits, elbows and tees

    DOE Patents [OSTI]

    De Feo, Angelo (Passaic, NJ); Drewniany, Edward (Bergen, NJ)

    1982-01-01

    A high temperature lined conduit comprising, a liner, a flexible insulating refractory blanket around and in contact with the liner, a pipe member around the blanket and spaced therefrom, and castable rigid refractory material between the pipe member and the blanket. Anchors are connected to the inside diameter of the pipe and extend into the castable material. The liner includes male and female slip joint ends for permitting thermal expansion of the liner with respect to the castable material and the pipe member. Elbows and tees of the lined conduit comprise an elbow liner wrapped with insulating refractory blanket material around which is disposed a spaced elbow pipe member with castable refractory material between the blanket material and the elbow pipe member. A reinforcing band is connected to the elbow liner at an intermediate location thereon from which extend a plurality of hollow tubes or pins which extend into the castable material to anchor the lined elbow and permit thermal expansion. A method of fabricating the high temperature lined conduit, elbows and tees is also disclosed which utilizes a polyethylene layer over the refractory blanket after it has been compressed to maintain the refractory blanket in a compressed condition until the castable material is in place. Hot gases are then directed through the interior of the liner for evaporating the polyethylene and setting the castable material which permits the compressed blanket to come into close contact with the castable material.

  1. Passive health monitoring of pressurized sensing lines

    SciTech Connect (OSTI)

    Holbert, K. E.; Lin, K. [Dept. of Electrical Engineering, Arizona State Univ., Tempe, AZ 85287-5706 (United States)

    2006-07-01

    The electrical-hydraulic analogy is employed for the modeling of pressurized lines. Anomalies such as leakage and blockage alter the normal system transfer function in such a manner that fault detection and identification can be performed. An impetus for this work is to incorporate simple algorithms within micro-electromechanical systems (MEMS) pressure transducers in order to create an intelligent sensor. (authors)

  2. Where are the Fermi lines coming from?

    SciTech Connect (OSTI)

    Rao, Kanishka; Whiteson, Daniel, E-mail: krao@uci.edu, E-mail: daniel@uci.edu [Dept. of Physics and Astronomy, UC Irvine, Irvine, CA (United States)

    2013-03-01

    We estimate the spatial locations of sources of the the observed features in the Fermi-LAT photon spectrum at E{sub ?} = 110 and E{sub ?} = 130 GeV. We determine whether they are consistent with emission from a single source, as would be expected in their interpretation as ?? and ?Z lines from dark matter annhiliation, as well as whether they are consistent with a dark matter halo positioned at the center of the galaxy. We take advantage of the per-photon measured incident angle in reconstructing the line features. In addition, we use a data-driven background model rather than making the assumption of a feature-less background. We localize the sources of the features at 110 and 130 GeV. Assuming an Einasto (NFW) density model we find the 130 GeV line to be offset from the Galactic center by 285 (280) pc, the 110 GeV line by 60 (30) pc with a large relative separation of 220 (240) pc. However, we find this displacement of each source from the Galactic center, as well as their relative displacement to be statistically consistent with a single Einasto or NFW dark matter halo at the center of the galaxy.

  3. The Linux Command Line Second Internet Edition

    E-Print Network [OSTI]

    Dahl, David B.

    The Linux Command Line Second Internet Edition William E. Shotts, Jr. A LinuxCommand.org Book #12 this book in elec- tronic formats for most popular e-readers: http://nostarch.com/tlcl.htm Release History Version Date Description 13.07 July 6, 2013 Second Internet Edition. 09.12 December 14, 2009 First

  4. On-line maintenance methodology development and its applications

    SciTech Connect (OSTI)

    Kim, J.; Jae, M.

    2012-07-01

    With the increasing economic pressures being faced and the potential for shortening outage times under the conditions of deregulated electricity markets in the world, licensees are motivated to get an increasing amount of the on-line maintenance (OLM). The benefits of the OLM includes increased system and plant reliability, reduction of plant equipment and system material condition deficiencies that could adversely impact operations, and reduction of work scope during plant refueling outages. In Korea, allowance guidelines of risk assessment is specified in the safety regulation guidelines 16.7 and 16.8 of the Korea Inst. of Nuclear Safety (KINS), which is 'General guidelines of Risk-informed application for requesting permission of changes' and 'Requesting permission of changes of Risk-informed application for Technical Specification'. We select the emergency diesel generator (EDG) of the Ulchin unit 3 and 4 for risk assessment analysis by applying configuration changes. The EDG which has plant safety level IE belongs to on-site standby power (A, B train EDG) in electric distribution system. The EDG is important component because it should maintain standby status during plant is operating, therefore we select the EDG for target component of risk assessment analysis. The risk assessment is limited to CDF. The risk assessment is performed by using AIMS-PSA Release2. We evaluate CDF by applying the configuration changes with some assumptions. Evaluation of the full power operation and Low power/Shut down operation was performed. This study has been performed for introducing a methodology and performing risk assessment. (authors)

  5. Change in historic buildings

    E-Print Network [OSTI]

    Yin, Chien-Ni

    1992-01-01

    Change in historic buildings is inevitable. If these changes are not well-managed, the cityscape will be threatened because a city is composed of buildings. A good city should combine both growth and preservation. Controlling ...

  6. "Managing Department Climate Change"

    E-Print Network [OSTI]

    Sheridan, Jennifer

    "Managing Department Climate Change" #12;Presenters · Ronda Callister Professor, Department Department Climate? · Assesment is essential for determining strategies for initiating change · In a research climate · Each panelist will describe an intervention designed to improve department climate ­ Ronda

  7. Infrastructure Institutional Change Principle

    Broader source: Energy.gov [DOE]

    Research shows that changes in infrastructure prompt changes in behavior (for better or worse). Federal agencies can modify their infrastructure to promote sustainability-oriented behavior change, ideally in ways that make new behaviors easier and more desirable to follow than existing patterns of behavior.

  8. CLIMATE CHANGE AND BIODIVERSITY

    E-Print Network [OSTI]

    CLIMATE CHANGE AND BIODIVERSITY THE CONTRIBUTION OF THE NATIONAL MUSEUM OF NATURAL HISTORY #12;At, the origin of which is mainly related to human activities. For the first time climate change sends a strong of climate change and that will fully find material expression in the debates. What will the world we shape

  9. CLIMATE CHANGE & THE GREENHOUSE

    E-Print Network [OSTI]

    Tobar, Michael

    CLIMATE CHANGE & THE GREENHOUSE EFFECT #12;This development of these materials was supported under.nasa.gov/Features/BlueMarble/BlueMarble_history.php © 2014 University of Western Australia ISBN 978-0-646-93241-5 Title: Climate change and the greenhouse OF CONTENTS TABLE OF CONTENTS Introduction to climate change resources 5 Alternative conceptions 6 References

  10. Forest Research: Climate Change

    E-Print Network [OSTI]

    Forest Research: Climate Change projects Forest Research is part of the Forestry Commission of climate change-related research is wide-ranging, covering impact assessment and monitoring, adaptation around a quarter of its research budget with Forest Research on climate change and related programmes

  11. Geography 131 Environmental Change

    E-Print Network [OSTI]

    the present landscape of the earth reflects past environmental conditions. We will then look at the impact Environmental Changes in the late Holocene 6 9 The Impact of People and Natural Environmental Changes in the late Holocene 7-8 10 TEST 2 - Thurs 8th The Impact of People and Natural Environmental Changes

  12. Climate change vulnerability

    E-Print Network [OSTI]

    Hilderbrand, Robert H.

    Climate change vulnerability assessment of the Verde Island Passage, Philippines #12;ii This document should be cited as: R. Boquiren, G. Di Carlo, and M.C. Quibilan (Eds). 2010. Climate Change, Marine Climate Change Program Conservation International­Global Marine Division epidgeon

  13. Environment and Climate Change

    E-Print Network [OSTI]

    Galles, David

    Migration, Environment and Climate Change: ASSESSING THE EVIDENCE #12;The opinions expressed;Migration, Environment and Climate Change: ASSESSING THE EVIDENCE Edited by Frank Laczko and Christine with with the financial support of #12;3 Migration, Environment and Climate Change: Assessing the Evidence Contents

  14. Climate Change Workshop 2007

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    1 Climate Change Workshop 2007 Adaptive Management and Resilience Relevant for the Platte River, UNL Climate Change Workshop 2007 · Resilience ·Why it matters · Adaptive Management ·How it helps ·Adaptive Capacity · What it is Overview Climate Change Workshop 2007 "A public Domain, once a velvet carpet

  15. Stability and interactions of nanocolloids at fluid interfaces: effects of capillary waves and line tensions

    E-Print Network [OSTI]

    H. Lehle; M. Oettel

    2008-07-11

    We analyze the effective potential for nanoparticles trapped at a fluid interface within a simple model which incorporates surface and line tensions as well as a thermal average over interface fluctuations (capillary waves). For a single colloid, a reduced steepness of the potential well hindering movements out of the interface plane compared to rigid interface models is observed, and an instability of the capillary wave partition sum in case of negative line tensions is pointed out. For two colloids, averaging over the capillary waves leads to an effective Casimir--type interaction which is long--ranged, power-like in the inverse distance but whose power sensitively depends on possible restrictions of the colloid degress of freedom. A nonzero line tension leads to changes in the magnitude but not in the functional form of the effective potential asymptotics.

  16. Reionization and high-redshift galaxies: the view from quasar absorption lines

    E-Print Network [OSTI]

    Becker, George D; Lidz, Adam

    2015-01-01

    Determining when and how the first galaxies reionized the intergalactic medium (IGM) promises to shed light on both the nature of the first objects and the cosmic history of baryons. Towards this goal, quasar absorption lines play a unique role by probing the properties of diffuse gas on galactic and intergalactic scales. In this review we examine the multiple ways in which absorption lines trace the connection between galaxies and the IGM near the reionization epoch. We first describe how the Ly$\\alpha$ forest is used to determine the intensity of the ionizing ultraviolet background and the global ionizing emissivity budget. Critically, these measurements reflect the escaping ionizing radiation from all galaxies, including those too faint to detect directly. We then discuss insights from metal absorption lines into reionization-era galaxies and their surroundings. Current observations suggest a buildup of metals in the circumgalactic environments of galaxies over $z \\sim 6$ to 5, although changes in ionizati...

  17. Line Broadening of EUV lines Across the Solar limb: A Spicule Contribution?

    E-Print Network [OSTI]

    to the dissipation of wave energy. However, O'Shea et al. (2005) has shown that the line widths start to show, Greece 3 School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui

  18. Line-of-sight deposition method

    DOE Patents [OSTI]

    Patten, J.W.; McClanahan, E.D.; Bayne, M.A.

    1980-04-16

    A line-of-sight method of depositing a film having substantially 100% of theoretical density on a substrate. A pressure vessel contains a target source having a surface thereof capable of emitting particles therefrom and a substrate with the source surface and the substrate surface positioned such that the source surface is substantially parallel to the direction of the particles impinging upon the substrate surface, the distance between the most remote portion of the substrate surface receiving the particles and the source surface emitting the particles in a direction parallel to the substrate surface being relatively small. The pressure in the vessel is maintained less than about 5 microns to prevent scattering and permit line-of-sight deposition. By this method the angles of incidence of the particles impinging upon the substrate surface are in the range of from about 45/sup 0/ to 90/sup 0/ even when the target surface area is greatly expanded to increase the deposition rate.

  19. In-line real time air monitor

    DOE Patents [OSTI]

    Wise, Marcus B. (Kingston, TN); Thompson, Cyril V. (Knoxville, TN)

    1998-01-01

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds.

  20. In-line real time air monitor

    DOE Patents [OSTI]

    Wise, M.B.; Thompson, C.V.

    1998-07-14

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds. 3 figs.

  1. Multi-transmission-line-beam interactive system

    E-Print Network [OSTI]

    Alexander Figotin; Guillermo Reyes

    2013-09-04

    We construct here a Lagrangian field formulation for a system consisting of an electron beam interacting with a slow-wave structure modeled by a possibly non-uniform multiple transmission line (MTL). In the case of a single line we recover the linear model of a traveling wave tube (TWT) due to J.R. Pierce. Since a properly chosen MTL can approximate a real waveguide structure with any desired accuracy, the proposed model can be used in particular for design optimization. Furthermore, the Lagrangian formulation provides for: (i) a clear identification of the mathematical source of amplification, (ii) exact expressions for the conserved energy and its flux distributions obtained from the Noether theorem. In the case of uniform MTLs we carry out an exhaustive analysis of eigenmodes and find sharp conditions on the parameters of the system to provide for amplifying regimes.

  2. Boron-10 Lined Proportional Counter Model Validation

    SciTech Connect (OSTI)

    Lintereur, Azaree T.; Siciliano, Edward R.; Kouzes, Richard T.

    2012-06-30

    The Department of Energy Office of Nuclear Safeguards (NA-241) is supporting the project “Coincidence Counting With Boron-Based Alternative Neutron Detection Technology” at Pacific Northwest National Laboratory (PNNL) for the development of an alternative neutron coincidence counter. The goal of this project is to design, build and demonstrate a boron-lined proportional tube-based alternative system in the configuration of a coincidence counter. This report discusses the validation studies performed to establish the degree of accuracy of the computer modeling methods current used to simulate the response of boron-lined tubes. This is the precursor to developing models for the uranium neutron coincidence collar under Task 2 of this project.

  3. Heavy rains hamper Louisiana gas line

    SciTech Connect (OSTI)

    Horner, C.

    1983-06-01

    Despite heavy rains and flooding a 36-mile gas pipeline loop for Transcontinental Gas Pipe Line Corp. was completed from north of Starks (at the end of Transco's south Louisiana lateral) to the Lake Charles area. Somastic-coated, 42-in. grade X-60 pipe comprises 90% of the route. The contract included multiple 30-42 in. fabrications, installation of six 42-in. gate valves, and expansion of the Gillis compressor station.

  4. Gas lines chasing huge northeastern market

    SciTech Connect (OSTI)

    Watts, J.

    1982-03-01

    Gas for the Northeastern US market is the driving force behind three proposed projects to bring Canadian gas to the New England-New York area: the 360-mile New England States pipeline (Algonquin Gas Transmission Co., Transcontinental Gas Pipe Line Corp., Texas Eastern Transmission Corp., and Nova, an Alberta Corp.); the 261-mile Boundary Gas project (with Boundary Gas Inc., a consortium of 14 gas utilities with Tennessee Gas Pipeline Co. providing transportation); and the 158-mile Niagara pipeline (Transcontinental Gas Pipe Line Corp.). Although none has yet received government (US and Canadian) approval, at least one project - the New England States line - is expected to be operational by 1984, bringing 305 million CF of natural gas daily for US residential and industrial markets. Both countries stand to benefit from the three projects. For Canada, the sale of gas to New England provides a steady market for massive quantities of gas makes building a pipeline from gas-rich Alberta (that will also serve eastern Canada) economically feasible, and ensures the existence of a transportation network in the Maritime provinces for use when production begins off Newfoundland and Nova Scotia. For the US, the gas from Canada will help reduce the nation's dependence on foreign oil and provide additional supplies during the peakload winter season.

  5. Climate change risk and response

    E-Print Network [OSTI]

    Kahrl, Fredrich; Roland-Holst, David

    2008-01-01

    electric power outages. Storm damage to transmission lineselectric power and transportation sectors. Storm damage to transmission lines

  6. Climate Change, Drought & Environment

    Broader source: Energy.gov [DOE]

    Afternoon Plenary Session: Current Trends in the Advanced Bioindustry Climate Change, Drought, and Environment—Michael Champ, Executive Director, The Sustainable Water Challenge

  7. Change Control Management Guide

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

    2011-07-29

    The Guide provides a suggested approach and uniform guidance for managing project and contract changes through applying the requirements of DOE O 413.3B. No cancellation.

  8. Climate Change Webinar Series

    Broader source: Energy.gov [DOE]

    Experts will provide findings from the Quadrennial Energy Review (QER) and outline federal energy policy objectives, proposals, and actions as they relate to climate change and resilience for...

  9. PUMPING UP THE [N I] NEBULAR LINES

    SciTech Connect (OSTI)

    Ferland, G. J.; Porter, R. L. [Department of Physics, University of Kentucky, Lexington, KY 40506 (United States); Henney, W. J. [Centro de Radioastronomia y Astrofisica, UNAM Campus Morelia, Apartado Postal 3-72, 58090 Morelia, Michoacan (Mexico); O'Dell, C. R. [Department of Physics and Astronomy, Vanderbilt University, Box 1807-B, Nashville, TN 37235 (United States); Van Hoof, P. A. M. [Royal Observatory of Belgium, Ringlaan 3, 1180 Brussels (Belgium); Williams, R. J. R. [AWE plc, Aldermaston, Reading RG7 4PR (United Kingdom)

    2012-09-20

    The optical [N I] doublet near 5200 A is anomalously strong in a variety of emission-line objects. We compute a detailed photoionization model and use it to show that pumping by far-ultraviolet (FUV) stellar radiation previously posited as a general explanation applies to the Orion Nebula (M42) and its companion M43; but, it is unlikely to explain planetary nebulae and supernova remnants. Our models establish that the observed nearly constant equivalent width of [N I] with respect to the dust-scattered stellar continuum depends primarily on three factors: the FUV to visual-band flux ratio of the stellar population, the optical properties of the dust, and the line broadening where the pumping occurs. In contrast, the intensity ratio [N I]/H{beta} depends primarily on the FUV to extreme-ultraviolet ratio, which varies strongly with the spectral type of the exciting star. This is consistent with the observed difference of a factor of five between M42 and M43, which are excited by an O7 and B0.5 star, respectively. We derive a non-thermal broadening of order 5 km s{sup -1} for the [N I] pumping zone and show that the broadening mechanism must be different from the large-scale turbulent motions that have been suggested to explain the line widths in this H II region. A mechanism is required that operates at scales of a few astronomical units, which may be driven by thermal instabilities of neutral gas in the range 1000-3000 K. In an Appendix A, we describe how collisional and radiative processes are treated in the detailed model N I atom now included in the CLOUDY plasma code.

  10. NITRATE CONVERSION OF HB-LINE REILLEXTM HPQ RESIN

    SciTech Connect (OSTI)

    Steimke, J.; Williams, M.; Steeper, T.; Leishear, R.

    2012-05-29

    Reillex{trademark} HPQ ion exchange resin is used by HB Line to remove plutonium from aqueous streams. Reillex{trademark} HPQ resin currently available from Vertellus Specialties LLC is a chloride ionic form, which can cause stress corrosion cracking in stainless steels. Therefore, HB Line Engineering requested that Savannah River National Laboratory (SRNL) convert resin from chloride form to nitrate form in the Engineering Development Laboratory (EDL). To perform this task, SRNL treated two batches of resin in 2012. The first batch of resin from Reilly Industries Batch 80302MA was initially treated at SRNL in 2001 to remove chloride. This batch of resin, nominally 30 liters, has been stored wet in carboys since that time until being retreated in 2012. The second batch of resin from Batch 23408 consisted of 50 kg of new resin purchased from Vertellus Specialties in 2012. Both batches were treated in a column designed to convert resin using downflow of 1.0 M sodium nitrate solution through the resin bed followed by rinsing with deionized water. Both batches were analyzed for chloride concentration, before and after treatment, using Neutron Activation Analysis (NAA). The resin specification [Werling, 2003] states the total chlorine and chloride concentration shall be less than 250 ppm. The resin condition for measuring this concentration is not specified; however, in service the resin would always be fully wet. Measurements in SRNL showed that changing from oven dry resin to fully wet resin, with liquid in the particle interstices but no supernatant, increases the total weight by a factor of at least three. Therefore, concentration of chlorine or chloride expressed as parts per million (ppm) decreases by a factor of three. Therefore, SRNL recommends measuring chlorine concentration on an oven dry basis, then dividing by three to estimate chloride concentration in the fully wet condition. Chloride concentration in the first batch (No.80302MA) was nearly the same before the current treatment (759 ppm dry) and after treatment (745 ppm dry or {approx}248 ppm wet). Treatment of the second batch of resin (No.23408) was very successful. Chloride concentration decreased from 120,000 ppm dry to an average of 44 ppm dry or {approx}15ppm wet, which easily passes the 250 ppm wet criterion. Per guidance from HB Line Engineering, SRNL blended Batch 80302 resin with Batch P9059 resin which had been treated previously by ResinTech to remove chloride. The chloride concentrations for the two drums of Batch P9059 were 248 ppm dry ({approx}83 ppm wet) {+-}22.8% and 583 ppm dry ({approx}194 ppm wet) {+-} 11.8%. The blended resin was packaged in five gallon buckets.

  11. On Line Power Plant Performance Monitoring 

    E-Print Network [OSTI]

    Ahner, D. J.; Priestley, R. R.

    1990-01-01

    PERFORMANCE MONITORING DAVID J. AHNER Manager, Power PrOduction Engineering Power Technologies, Inc. Schenectady, NY ABSTRACT Maintaining efficient and reliable plant operation is a prime objective in the generation of power. These are important... stream_source_info ESL-IE-90-06-24.pdf.txt stream_content_type text/plain stream_size 30080 Content-Encoding ISO-8859-1 stream_name ESL-IE-90-06-24.pdf.txt Content-Type text/plain; charset=ISO-8859-1 ON LINE POWER PLANT...

  12. Fluid properties determine flow line blockage potential

    SciTech Connect (OSTI)

    Hunt, A.

    1996-07-15

    A thorough understanding of fluid properties helps in determining the potential of hydrates, paraffins, or asphaltenes to block subsea flow lines. Thermal, chemical, and mechanical methods are the main ways for preventing deposition. Already in both the North Sea and the Gulf of Mexico, blockages have led to significant losses in production and reserves recovery. This first article in a two-part series discusses thermal and chemical methods in overcoming fluid behavior problems caused by hydrate and other fluid constituents in subsea multiphase flow. The paper discusses subsea production, possible problems, nucleation, growth, deposition, preventing deposition, hydrate predictions, multiphase flow, and hydrate inhibition.

  13. CXD 4601, Line Yard Fence Project (4601)

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B LReports from the CloudGEGR-N Goods POCTBT |CUD-55 /AllenLine

  14. Plains & Eastern Clean Line HVDC Scheme

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary Areas ofEnergy OnPeter B.EnergyInPilgrim6, 2015Line HVDC

  15. Gateway West Transmission Line | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View New PagesSustainable UrbanKentucky: Energy ResourcesMaui Area (DOEMauiWest Transmission Line

  16. Line Extension Analysis | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EAInvervarLeeds, UnitedLiberty PowerLine Extension Analysis Jump to:

  17. Grand Coulee Transmission Line | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History View New Pages RecentPlantMagma EnergyGoogle lendsCoulee Transmission Line

  18. LINE Commission Visits Idaho National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResource and JobLCLS Operating3ledp/ The4, LINE Commission

  19. On Line Journals - Links - Cyclotron Institute

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSEHowScientificOmbuds Office LocationOn-Line Journals Acta

  20. EIS-0421: Big Eddy-Knight Transmission Line

    Broader source: Energy.gov [DOE]

    BPA is proposing to build a new 500 kilovolt (kV) transmission line in Wasco County, Oregon and Klickitat County, Washington and a new substation in Klickitat County. The new BPA transmission line...

  1. Emailed Comments of Elizabeth Chimento RE: Pepco Scheduled Line...

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

    Scheduled Line Repair Dec. 1-20, 2006 Docket No. EO-05-01. Regarding the planned line outage, scheduled for Feb. 20 through Mar. 6, I am requesting that the residents near the...

  2. Radio-Frequency Inverters With Transmission-Line Input Networks

    E-Print Network [OSTI]

    Phinney, Joshua W.

    A soft-switching inverter topology (the Class Phi ) is presented which draws dc source current through a transmission line or a lumped-network approximation of a distributed line. By aligning the inverter switching frequency ...

  3. Real Time Pricing Tie Line Control: A Case Study 

    E-Print Network [OSTI]

    Childress, R.

    1999-01-01

    A Tie Line Control System maintains the purchase quantity of electrical energy an industrial facility buys from a utility company. Implementing an advanced Tie Line Control system automates the buy versus make decision process for an industrial...

  4. Frenkel Line and Solubility Maximum in Supercritical Fluids

    E-Print Network [OSTI]

    C. Yang; V. V. Brazhkin; M. T. Dove; K. Trachenko

    2015-02-27

    A new dynamic line, the Frenkel line, has recently been proposed to separate the supercritical state into rigid-liquid and non-rigid gas-like uid. The location of Frenkel line on the phase diagram is unknown for real uids. Here, we map the Frenkel line for three important systems: CO2, H2O and CH4. This provides an important demarcation on the phase diagram of these systems, the demarcation that separates two distinct physical states with liquid-like and gas-like properties. We ?nd that the Frenkel line can have similar trend as the melting line above the critical pressure. Moreover, we discuss the relationship between unexplained solubility maxima and Frenkel line, and propose that the Frenkel line corresponds to the optimal conditions for solubility.

  5. Mode conversation losses in overmolded millimeter wave transmission lines

    E-Print Network [OSTI]

    Tax, David S. (David Samuel)

    2008-01-01

    Millimeter wave transmission lines are integral components for many important applications like nuclear fusion and NMR spectroscopy. In low loss corrugated transmission lines propagating the HE,1 mode with a high waveguide ...

  6. An on-line human signature verification system 

    E-Print Network [OSTI]

    Simsek, Burc A

    2000-01-01

    A study on human signature verification is presented. A literature survey of current and past methodologies for on-line signature verification is followed by a new approach to the problem of on-line signature verification. ...

  7. Secretary Chu Thanks Utility Staff and Line Workers For Their...

    Energy Savers [EERE]

    Utility Staff and Line Workers For Their Efforts to Restore Power in the Wake of Hurricane Sandy Secretary Chu Thanks Utility Staff and Line Workers For Their Efforts to...

  8. Climate change risk and response

    E-Print Network [OSTI]

    Kahrl, Fredrich; Roland-Holst, David

    2008-01-01

    and Kate Scow. 2006. “Climate Change: Page 117 ChallengesLandscapes. ” California Climate Change Center White Paper.Sea Level. ” California Climate Change Center White Paper.

  9. Climate Change and National Security

    E-Print Network [OSTI]

    Alyson, Fleming; Summer, Kelly; Summer, Martin; Lauren, Franck; Jonathan, Mark

    2015-01-01

    CLIMATE CHANGE Multiplying Threats to National Securityfor the impacts of climate change on national security. Pagea warming world. Page 11 “Climate change acts as a threat

  10. Climate change risk and response

    E-Print Network [OSTI]

    Kahrl, Fredrich; Roland-Holst, David

    2008-01-01

    The Potential Impacts of Climate Change on Inshore Squid:Fifth Annual California Climate Change Research Conference,Potential Impacts of Climate Change on U.S. Transportation.

  11. Review: Preparing for Climate Change

    E-Print Network [OSTI]

    Kunnas, Jan

    2013-01-01

    Review: Preparing for Climate Change By Michael D.Stephen, Preparing for Climate Change. A Boston Review Book.alkaline paper. “Climate change is inevitable, but disaster

  12. Urban Growth and Climate Change

    E-Print Network [OSTI]

    Kahn, Matthew E.

    2008-01-01

    2007a The Economic Impacts of Climate Change: Evidence fromGreenstone. 2007b. Climate Change, Mortality and Adaptation:and Ariel Dinar, 1999, Climate Change, Agriculture, and

  13. Direct imaging of the water snow line at the time of planet formation using two ALMA continuum bands

    E-Print Network [OSTI]

    Banzatti, Andrea; Ricci, Luca; Pontoppidan, Klaus M; Birnstiel, Til; Ciesla, Fred

    2015-01-01

    Molecular snow lines in protoplanetary disks have been studied theoretically for decades because of their importance in shaping planetary architectures and compositions. The water snow line lies in the planet formation region at water snow line in protoplanetary disks through its physical and chemical imprint in the local dust properties. We adopt a physical disk model that includes dust coagulation, fragmentation, drift, and a change in fragmentation velocities of a factor 10 between dry silicates and icy grains as found by laboratory work. We find that the presence of a water snow line leads to a sharp discontinuity in the radial profile of the dust emission spectral index {\\alpha}_mm, due to replenishment of small grains through fragmentation. We use the ALMA simulator to demonstrate that this effect can be observed in protoplaneta...

  14. ExoMol line lists VIII: A variationally computed line list for hot formaldehyde

    E-Print Network [OSTI]

    Al-Refaie, Ahmed F; Tennyson, Jonathan; Yurchenko, Sergei N

    2015-01-01

    A computed line list for formaldehyde, H$_2{}^{12}$C$^{16}$O, applicable to temperatures up to $T=1500$~K is presented. An empirical potential energy and {\\it ab initio} dipole moment surfaces are used as the input to nuclear motion program TROVE. The resulting line list, referred to as \\textit{AYTY}, contains 10.3 million rotational-vibrational states and around 10 billion transition frequencies. Each transition includes associated Einstein-$A$ coefficients and absolute transition intensities, for wavenumbers below 10~000 cm\\(^{-1}\\) and rotational excitations up to \\(J=70\\). Room-temperature spectra are compared with laboratory measurements and data currently available in the HITRAN database. These spectra show excellent agreement with experimental spectra and highlight the gaps and limitations of the HITRAN data. The full line list is available from the CDS database as well as at \\url{www.exomol.com}.

  15. Commitment Institutional Change Principle

    Broader source: Energy.gov [DOE]

    Commitment can be a crucial element that helps federal agencies inject and emphasize sustainability in their organizational culture. Institutions and people change when they have made definite commitments to change, especially when those commitments relate to future conditions. Research shows that explicit commitments improve the rate at which people adopt energy-efficient behaviors.

  16. Global Change at Edinburgh

    E-Print Network [OSTI]

    Greenaway, Alan

    at Edinburgh | 2 The Global Change Group Human impacts on our planet are changing the atmosphere, climate, ice and to the CarboEurope programme. Cryosphere: field & remote observations & experiments on glacial erosion Biodiversity and the carbon cycle in Peru 10 Radiation penetration in forest stands 12 Genetics and Past

  17. SunLine Tests HHICE Bus in Desert Climate

    SciTech Connect (OSTI)

    Not Available

    2006-10-01

    Fact sheet describes the demonstration of a hybrid hydrogen internal combustion engine (HHICE) bus at SunLine Transit Agency.

  18. Changes to MFRSRCLDOD1MIN Datastream

    SciTech Connect (OSTI)

    S McFarlane and Y Shi

    2012-05-23

    Significant updates were made to the multifilter rotating shadowband radiometer (MFRSR) cloud optical depth (MFRSRCLDOD) value-added product (VAP) in 2011. The original intent of the update was to add quality control (QC) flags and to update the VAP to use the improved retrievals of liquid water path (LWP) from the Microwave Radiometer Retrievals (MWRRET) VAP rather than the statistical retrievals of LWP from the Microwave Radiometer Line of Sight (MWRLOS) datastream. Although this was originally intended to be a straightforward update of the code, it became more complicated due to the following factors: (1) a new developer and translator team were working with the code; (2) numerous small changes had to be made to the code to consistently implement the QC flags; and (3) ARM standards have changed over the years since the code was originally developed.

  19. Control of stochasticity in magnetic field lines

    E-Print Network [OSTI]

    Cristel Chandre; Michel Vittot; Guido Ciraolo; Philippe Ghendrih; Ricardo Lima

    2005-11-03

    We present a method of control which is able to create barriers to magnetic field line diffusion by a small modification of the magnetic perturbation. This method of control is based on a localized control of chaos in Hamiltonian systems. The aim is to modify the perturbation locally by a small control term which creates invariant tori acting as barriers to diffusion for Hamiltonian systems with two degrees of freedom. The location of the invariant torus is enforced in the vicinity of the chosen target. Given the importance of confinement in magnetic fusion devices, the method is applied to two examples with a loss of magnetic confinement. In the case of locked tearing modes, an invariant torus can be restored that aims at showing the current quench and therefore the generation of runaway electrons. In the second case, the method is applied to the control of stochastic boundaries allowing one to define a transport barrier within the stochastic boundary and therefore to monitor the volume of closed field lines.

  20. On-line subsea multiphase flow measurement

    SciTech Connect (OSTI)

    High, G.; Frantzen, K.H.; Marshall, M.

    1995-12-31

    This paper describes the final detailed design, engineering, and installation phase of a Joint Industry Program to qualify a robust subsea multiphase flowmeter module for long-term installation on a North Sea manifold tie-in. Multiphase subsea production has become a common method of hydrocarbon recovery in all areas of offshore E and P. In the North Sea, many developments are subsea satellites with multiphase well-fluids being comingled prior to processing. The system described meets this challenge by offering a cost effective solution to real-time well monitoring as an alternative to the conventional test separator, removing the need for test lines and shutting in wells for testing. The multiphase instrument allows on-line well fluid analysis, and is also an important tool for reservoir management and field analysis, and provides a means of implementing field allocation metering thereby simplifying small marginal field developments. This project is one of the first subsea multiphase flowmeter installations engineered for long-term subsea service, and designed as an integrated component of the subsea production control system.

  1. Supplemental Material Generalized Streak Lines Advected Tangent Curves

    E-Print Network [OSTI]

    of advected tangent curves. It turns out that generalized streak lines [WTS+ 07] can be described using. Generalized Streak Lines w = v, ¯f = FFF Wiebel et al. [WTS+ 07] introduced a generalization of streak lines. In Data Visualization 2003. Proc. VisSym 03, pages 141­148, 2003. [WTS+ 07] Alexander Wiebel, Xavier

  2. Synthesis of lumped transmission-line analogs Joshua W. Phinney

    E-Print Network [OSTI]

    Perreault, Dave

    of transmission lines to power electronics is a promising technique for miniaturizing dc-dc and dc- ac convertersSynthesis of lumped transmission-line analogs Joshua W. Phinney Exponent, Inc. 420 Lexington Ave-- Transmission lines and their lumped approximating networks have long been incorporated into radio

  3. INNOVATIVE CONCEPTS FOR ON-LINE SYNCHRONOUS GENERATOR PARAMETER ESTIMATION

    E-Print Network [OSTI]

    INNOVATIVE CONCEPTS FOR ON-LINE SYNCHRONOUS GENERATOR PARAMETER ESTIMATION by Elias Kyriakides FOR ON-LINE SYNCHRONOUS GENERATOR PARAMETER ESTIMATION by Elias Kyriakides has been approved December ABSTRACT A method to identify synchronous generator parameters from on-line measurements is presented

  4. Software Product Lines: a Case Study Mark Ardis Nigel Daleyy

    E-Print Network [OSTI]

    Ardis, Mark

    , design patterns, and automated testing. The case study is based on Header Table, an example product lineSoftware Product Lines: a Case Study Mark Ardis Nigel Daleyy Daniel Ho manz Harvey Siyx David Weiss{ January 28, 2000 Abstract A software product line is a family of products that share common features

  5. Comparing the performace of f1 testers versus their inbred line parents in evaluating experimental sorghum b and r lines in testcrosses. 

    E-Print Network [OSTI]

    Packer, Daniel Jacob

    2009-05-15

    versus inbred line testers for evaluating experimental sorghum lines in testcrosses Line x tester analyses were performed to assess tester consistency in assigning ranks. With one exception, all of the line x tester analyses were non...

  6. IV1. Yoon and E. Crosbie The APS Beam Transfer Line from Linac to Booster Synchrotron

    E-Print Network [OSTI]

    Kemner, Ken

    allows the flexibilty for :matching as and ßs, where 'a and ß denote the usual Twiss parameters¡x and r¡' x to zero at the end vvhi1aretaining ß~reasOl1ablysmalL The Twiss parameters after the PAR

  7. Climate Change and National Security

    E-Print Network [OSTI]

    Alyson, Fleming; Summer, Kelly; Summer, Martin; Lauren, Franck; Jonathan, Mark

    2015-01-01

    data needed to construct effective climate change models and forecasts. Academic “Centers of Excellence” that focus on climate change

  8. Variety of lines Main theorem Kummer coverings Precise statement Proof Singularities Lines in Fermat hypersurface and M0,n

    E-Print Network [OSTI]

    Terasoma, Tomohide

    . . . . . . Variety of lines Main theorem Kummer coverings Precise statement Proof Singularities://gauss.ms.u-tokyo.ac.jp Arrangements of Hyperplanes, in Hokkaido University, 13th Aug 2009 #12;. . . . . . Variety of lines Main theorem Kummer coverings Precise statement Proof Singularities Contents . ..1 Variety of lines . ..2 Main

  9. Comparison of on-line and off-line methods to quantify reactive oxygen species (ROS) in atmospheric aerosols

    E-Print Network [OSTI]

    Fuller, S. J.; Wragg, F. P. H.; Nutter, J.; Kalberer, M.

    2014-04-08

      a   wide   range   of   inorganic   and   organic  72   compounds   such   as   transition  metals,   hydrogen  peroxide   (H2O2),   radicals   (e.g.,  73   OH??,  O2???),  and  organic  (hydro...   H2O2  were  used  to  optimize  operation  conditions  of  the  on-­?line  instrument  and  276   to   compare   the   performance   of   on-­?line   and   off-­?line   quantification   methods.  277...

  10. On-Line Digit Recognition using Off-Line Features A.Teredesai

    E-Print Network [OSTI]

    Fernandez, Thomas

    @cedar.buffalo.edu Abstract This paper describes a classification method for on-line handwritten digits based on off. This framework for handwritten digit classification is based on genetic programming (GP). Several issues in pre effective for digit classification and pairwise discrimination of confusing allographs [9] and b) Genetic

  11. Climate Change Proposed Scoping Plan

    E-Print Network [OSTI]

    Climate Change Proposed Scoping Plan a amework for change Prepared by the California Air ResourcesBackgroundBackgroundBackground ............................................................................................................................................................................................................................................................................................................................................................................................................ 4444 1. Climate Change Policy in California1. Climate Change Policy in California1. Climate Change Policy in California1. Climate Change Policy in California

  12. Changes to Fearless Symmetry Page xxii: Abel is Norwegian, not Danish.

    E-Print Network [OSTI]

    Gross, Rob

    Changes to Fearless Symmetry · Page xxii: Abel is Norwegian, not Danish. · Page 92, line -5 of the page, not an attempt to raise t to the fifth power. · Page 134: Change the equations 2x + 3y + 4z = 12: The sentence That representation is the system S from this point of view. should be That representation

  13. Method for bonding a transmission line to a downhole tool

    DOE Patents [OSTI]

    Hall, David R. (Provo, UT); Fox, Joe (Spanish Fork, UT)

    2007-11-06

    An apparatus for bonding a transmission line to the central bore of a downhole tool includes a pre-formed interface for bonding a transmission line to the inside diameter of a downhole tool. The pre-formed interface includes a first surface that substantially conforms to the outside contour of a transmission line and a second surface that substantially conforms to the inside diameter of a downhole tool. In another aspect of the invention, a method for bonding a transmission line to the inside diameter of a downhole tool includes positioning a transmission line near the inside wall of a downhole tool and placing a mold near the transmission line and the inside wall. The method further includes injecting a bonding material into the mold and curing the bonding material such that the bonding material bonds the transmission line to the inside wall.

  14. Calibrating transport lines using LOCO techniques

    SciTech Connect (OSTI)

    Yves Roblin

    2011-09-01

    With the 12GeV upgrade underway at CEBAF, there is a need to re-characterize the beamlines after the modifications made to it to accommodate running at higher energies. We present a linear perturbation approach to calibrating the optics model of transport lines. This method is adapted from the LOCO method in use for storage rings. We consider the effect of quadrupole errors, dipole construction errors as well as beam position monitors and correctors calibrations. The ideal model is expanded to first order in Taylor series of the quadrupole errors. A set of difference orbits obtained by exciting the correctors along the beamline is taken, yielding the measured response matrix. An iterative procedure is invoked and the quadrupole errors as well as beam position monitors and corrector calibration factors are obtained. Here we present details of the method and results of first measurements at CEBAF in early 2011.

  15. Nonlinear transmission line based electron beam driver

    SciTech Connect (OSTI)

    French, David M.; Hoff, Brad W.; Tang Wilkin; Heidger, Susan; Shiffler, Don [Directed Energy Directorate, Air Force Research Laboratory, Kirtland AFB, New Mexico 87117 (United States); Allen-Flowers, Jordan [Program in Applied Mathematics, University of Arizona, Tucson, Arizona 85721 (United States)

    2012-12-15

    Gated field emission cathodes can provide short electron pulses without the requirement of laser systems or cathode heating required by photoemission or thermionic cathodes. The large electric field requirement for field emission to take place can be achieved by using a high aspect ratio cathode with a large field enhancement factor which reduces the voltage requirement for emission. In this paper, a cathode gate driver based on the output pulse train from a nonlinear transmission line is experimentally demonstrated. The application of the pulse train to a tufted carbon fiber field emission cathode generates short electron pulses. The pulses are approximately 2 ns in duration with emission currents of several mA, and the train contains up to 6 pulses at a frequency of 100 MHz. Particle-in-cell simulation is used to predict the characteristic of the current pulse train generated from a single carbon fiber field emission cathode using the same technique.

  16. Dispersion-free radial transmission lines

    DOE Patents [OSTI]

    Caporaso, George J. (Livermore, CA); Nelson, Scott D. (Patterson, CA)

    2011-04-12

    A dispersion-free radial transmission line ("DFRTL") preferably for linear accelerators, having two plane conductors each with a central hole, and an electromagnetically permeable material ("EPM") between the two conductors and surrounding a channel connecting the two holes. At least one of the material parameters of relative magnetic permeability, relative dielectric permittivity, and axial width of the EPM is varied as a function of radius, so that the characteristic impedance of the DFRTL is held substantially constant, and pulse transmission therethrough is substantially dispersion-free. Preferably, the EPM is divided into concentric radial sections, with the varied material parameters held constant in each respective section but stepwise varied between sections as a step function of the radius. The radial widths of the concentric sections are selected so that pulse traversal time across each section is the same, and the varied material parameters of the concentric sections are selected to minimize traversal error.

  17. On-line tritium production monitor

    DOE Patents [OSTI]

    Mihalczo, John T. (Oak Ridge, TN)

    1993-01-01

    A scintillation optical fiber system for the on-line monitoring of nuclear reactions in an event-by-event manner is described. In the measurement of tritium production one or more optical fibers are coated with enriched .sup.6 Li and connected to standard scintillation counter circuitry. A neutron generated .sup.6 Li(n )T reaction occurs in the coated surface of .sup.6 Li-coated fiber to produce energetic alpha and triton particles one of which enters the optical fiber and scintillates light through the fiber to the counting circuit. The coated optical fibers can be provided with position sensitivity by placing a mirror at the free end of the fibers or by using pulse counting circuits at both ends of the fibers.

  18. On-line tritium production monitor

    DOE Patents [OSTI]

    Mihalczo, J.T.

    1993-11-23

    A scintillation optical fiber system for the on-line monitoring of nuclear reactions in an event-by-event manner is described. In the measurement of tritium production one or more optical fibers are coated with enriched {sup 6}Li and connected to standard scintillation counter circuitry. A neutron generated {sup 6}Li(n)T reaction occurs in the coated surface of {sup 6}Li-coated fiber to produce energetic alpha and triton particles one of which enters the optical fiber and scintillates light through the fiber to the counting circuit. The coated optical fibers can be provided with position sensitivity by placing a mirror at the free end of the fibers or by using pulse counting circuits at both ends of the fibers. 5 figures.

  19. Atomic line emission analyzer for hydrogen isotopes

    DOE Patents [OSTI]

    Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

    1993-01-01

    Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using a metal hydride.

  20. Atomic line emission analyzer for hydrogen isotopes

    DOE Patents [OSTI]

    Kronberg, J.W.

    1993-03-30

    Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using a metal hydride.

  1. Atomic line emission analyzer for hydrogen isotopes

    DOE Patents [OSTI]

    Kronberg, J.W.

    1991-05-08

    Apparatus for isotopic analysis of hydrogen comprises a low pressure chamber into which a sample of hydrogen is introduced and then exposed to an electrical discharge to excite the electrons of the hydrogen atoms to higher energy states and thereby cause the emission of light on the return to lower energy states, a Fresnel prism made at least in part of a material anomalously dispersive to the wavelengths of interest for dispersing the emitted light, and a photodiode array for receiving the dispersed light. The light emitted by the sample is filtered to pass only the desired wavelengths, such as one of the lines of the Balmer series for hydrogen, the wavelengths of which differ slightly from one isotope to another. The output of the photodiode array is processed to determine the relative amounts of each isotope present in the sample. Additionally, the sample itself may be recovered using, a metal hydride.

  2. Second Line of Defense Spares Program Assessment

    SciTech Connect (OSTI)

    Henderson, Dale L.; Muller, George; Mercier, Theresa M.; Brigantic, Robert T.; Perkins, Casey J.; Cooley, Scott K.

    2012-11-20

    The Office of the Second Line of Defense (SLD) is part of the Department of Energy‘s (DOE) National Nuclear Security Administration (NNSA). The SLD Program accomplishes its critical global security mission by forming cooperative relationships with partner countries to install passive radiation detection systems that augment traditional inspection and law enforcement measures by alerting border officials to the presence of special nuclear or other radiological materials in cross-border traffic. An important tenet of the program is to work collaboratively with these countries to establish the necessary processes, procedures, infrastructure and conditions that will enable them to fully assume the financial and technical responsibilities for operating the equipment. As the number of operational deployments grows, the SLD Program faces an increasingly complex logistics process to promote the timely and efficient supply of spare parts.

  3. Moving contact line of a volatile fluid

    E-Print Network [OSTI]

    V. Janecek; B. Andreotti; D. Prazak; T. Barta; V. S. Nikolayev

    2012-12-15

    Interfacial flows close to a moving contact line are inherently multi-scale. The shape of the interface and the flow at meso- and macroscopic scales inherit an apparent interface slope and a regularization length, both called after Voinov, from the dynamical processes at work at the microscopic level. Here, we solve this inner problem in the case of a volatile fluid at equilibrium with its vapor. The evaporative/condensation flux is then controlled by the dependence of the saturation temperature on interface curvature -- the so-called Kelvin effect. We derive the dependencies of the Voinov angle and of the Voinov length as functions of the substrate temperature. The relevance of the predictions for experimental problems is finally discussed.

  4. Moving contact line of a volatile fluid

    E-Print Network [OSTI]

    Janecek, V; Prazak, D; Barta, T; Nikolayev, V S

    2012-01-01

    Interfacial flows close to a moving contact line are inherently multi-scale. The shape of the interface and the flow at meso- and macroscopic scales inherit an apparent interface slope and a regularization length, both called after Voinov, from the dynamical processes at work at the microscopic level. Here, we solve this inner problem in the case of a volatile fluid at equilibrium with its vapor. The evaporative/condensation flux is then controlled by the dependence of the saturation temperature on interface curvature -- the so-called Kelvin effect. We derive the dependencies of the Voinov angle and of the Voinov length as functions of the substrate temperature. The relevance of the predictions for experimental problems is finally discussed.

  5. Oversight and Change

    National Nuclear Security Administration (NNSA)

    %2A en Oversight and Change http:www.nnsa.energy.govourmissionoversightandchange

    Page...

  6. Managing Internal Administrative Change

    E-Print Network [OSTI]

    Custer, Joseph A.

    2000-01-01

    Mr. Custer considers the impact of already instituted internal administrative change on library staff and how best to deal with it. He approaches the topic by describing what his own library did when faced with significant internal administrative...

  7. Climate Change Adaptation

    Broader source: Energy.gov [DOE]

    DOE is adapting to climate change by applying a risk-based resiliency approach to identify and minimize climate-related vulnerabilities across all DOE policies, programs and activities.

  8. Climate Change Adaptation Planning

    Office of Energy Efficiency and Renewable Energy (EERE)

    This course provides an introduction to planning for climate change impacts, with examples of tribes that have been going through the adaptation planning process. The course is intended for tribal...

  9. Configuration Change Management

    E-Print Network [OSTI]

    Yoder, Nathaniel

    2012-05-11

    shown that if a company does not continue to innovate, whether it is products or services, it will not be able to remain successful. This philosophy is extremely important with design engineering companies. If managed correctly, change can be a...

  10. The Relationship Between the High Energy Continuum and Emission Lines in QSOs: A Low-Redshift Sample

    E-Print Network [OSTI]

    Paul J. Green

    1996-03-18

    Quasar emission lines are sensitive to both the luminosity and shape of the quasars' high energy continuum - primarily in the soft X-ray and the (obscured) extreme ultraviolet. We initiate the first large-scale, multi-line investigation of correlations between the QSO soft X-ray continuum and UV line emission, using an IUE/Einstein sample. We characterize the distributions of line equivalent and velocity widths (EW and FWHM) of 85 QSOs in the IUE atlas of Lanzetta et al. (1993), using a new error analysis for objective, automated line measurements, and contrast measured line parameters to the QSO continuum spectral energy distributions (SEDs). We find significant correlations between EW and UV luminosity (e.g., the well-studied Baldwin effect) for Lya, CIV, HeII, and CIII. EW(CIII) and EW(HeII) show previously unreported correlations with Lx which for CIII appears to be primary. The line ratios CIII/Lya and HeII/Lya both show strongest dependence on Lx. EW(Lya) correlates strongly with spectral slopes \\alpha_{uv} and \\alpha_{ox}, but NOT with Lx. We argue that one simple geometrical interpretation of the Baldwin effect (BEff) as a result of a distribution of disk inclinations is not plausible. The BEff weakens or disappears when line emission is correctly compared to the luminosity in the continuum bandpass relevant to its production, which suggests that the BEff is due to a change in SED with luminosity. Our prediction that no BEff relative to X-ray luminosity should be found for FeII or MgII emission lines, will be tested in a later paper, extended to a wider redshift/luminosity range.

  11. Boron-Lined Straw-Tube Neutron Detector Test

    SciTech Connect (OSTI)

    Kouzes, Richard T.; Ely, James H.; Stromswold, David C.

    2010-08-07

    Radiation portal monitors used for interdiction of illicit materials at borders include highly sensitive neutron detection systems. The main reason for having neutron detection capability is to detect fission neutrons from plutonium. The currently deployed radiation portal monitors (RPMs) from Ludlum and Science Applications International Corporation (SAIC) use neutron detectors based upon 3He-filled gas proportional counters, which are the most common large neutron detector. There is a declining supply of 3He in the world, and thus, methods to reduce the use of this gas in RPMs with minimal changes to the current system designs and sensitivity to cargo-borne neutrons are being investigated. Four technologies have been identified as being currently commercially available, potential alternative neutron detectors to replace the use of 3He in RPMs. Reported here are the results of tests of a boron-lined proportional counter design variation. In the testing described here, the neutron detection efficiency and gamma ray rejection capabilities of a system manufactured by Proportional Technologies, Inc, was tested.

  12. ACOUSTIC DETECTING AND LOCATING GAS PIPE LINE INFRINGEMENT

    SciTech Connect (OSTI)

    John L. Loth; Gary J. Morris; George M. Palmer; Richard Guiler; Patrick Browning

    2004-12-01

    The extensive network of high-pressure natural gas transmission pipelines covering the United States provides an important infrastructure for our energy independence. Early detection of pipeline leaks and infringements by construction equipment, resulting in corrosion fractures, presents an important aspect of our national security policy. The National Energy Technology Laboratory Strategic Center for Natural Gas (SCVG) is and has been funding research on various applicable techniques. The WVU research team has focused on monitoring pipeline background acoustic signals generated and transmitted by gas flowing through the gas inside the pipeline. In case of a pipeline infringement, any mechanical impact on the pipe wall, or escape of high-pressure gas, generates acoustic signals traveling both up and down stream through the gas. Sudden changes in flow noise are detectable with a Portable Acoustic Monitoring Package (PAMP), developed under this contract. It incorporates a pressure compensating microphone and a signal- recording device. Direct access to the gas inside the line is obtained by mounting such a PAMP, with a 1/2 inch NPT connection, to a pipeline pressure port found near most shut-off valves. An FFT of the recorded signal subtracted by that of the background noise recorded one-second earlier appears to sufficiently isolate the infringement signal to allow source interpretation. Using cell phones for data downloading might allow a network of such 1000-psi rated PAMP's to acoustically monitor a pipeline system and be trained by neural network software to positively identify and locate any pipeline infringement.

  13. ACOUSTIC DETECTING AND LOCATING GAS PIPE LINE INFRINGEMENT

    SciTech Connect (OSTI)

    John L. Loth; Gary J. Morris; George M. Palmer; Richard Guiler; Patrick Browning

    2004-10-31

    The extensive network of high-pressure natural gas transmission pipelines covering the United States provides an important infrastructure for our energy independence. Early detection of pipeline leaks and infringements by construction equipment, resulting in corrosion fractures, presents an important aspect of our national security policy. The National Energy Technology Laboratory Strategic Center for Natural Gas (SCVG) is and has been funding research on various applicable techniques. The WVU research team has focused on monitoring pipeline background acoustic signals generated and transmitted by gas flowing through the gas inside the pipeline. In case of a pipeline infringement, any mechanical impact on the pipe wall, or escape of high-pressure gas, generates acoustic signals traveling both up and down stream through the gas. Sudden changes in flow noise are detectable with a Portable Acoustic Monitoring Package (PAMP), developed under this contract. It incorporates a pressure compensating microphone and a signal- recording device. Direct access to the gas inside the line is obtained by mounting such a PAMP, with a 1/2 inch NPT connection, to a pipeline pressure port found near most shut-off valves. An FFT of the recorded signal subtracted by that of the background noise recorded one-second earlier appears to sufficiently isolate the infringement signal to allow source interpretation. Using cell phones for data downloading might allow a network of such 1000-psi rated PAMP's to acoustically monitor a pipeline system and be trained by neural network software to positively identify and locate any pipeline infringement.

  14. The $^7$Be Solar Neutrino Line: A Reflection of the Central Temperature Distribution of the Sun

    E-Print Network [OSTI]

    John N. Bahcall

    1994-01-14

    A precise test of the theory of stellar evolution can be performed by measuring the average difference in energy between the neutrino line produced by ${\\rm ^7Be}$ electron capture in the solar interior and the corresponding neutrino line produced in a terrestrial laboratory. This energy shift is calculated to be 1.29~keV (to an accuracy of a few percent) for the dominant ground-state to ground-state transition. The energy shift is approximately equal to the average temperature of the solar core, computed by integrating the temperature over the solar interior with a weighting factor equal to the locally-produced $^7$Be neutrino emission. The characteristic modulation of the ${\\rm ^7Be}$ line shape that would be caused by either vacuum neutrino oscillations or by matter-enhanced (MSW) neutrino oscillations is shown to be small. Other frequently-discussed weak interaction solutions to the solar neutrino problem are also not expected to change significantly the line profile. Therefore, a measurement of the energy shift is a measurement of the central temperature distribution of the sun.

  15. The Optical Wind Line Variability of $\\eta$ Carinae During the 2009.0 Event

    E-Print Network [OSTI]

    Richardson, Noel D; Gull, Theodore R; Moffat, Anthony F J; St-Jean, Lucas

    2015-01-01

    We report on high-resolution spectroscopy of the 2009.0 spectroscopic event of $\\eta$ Carinae collected via SMARTS observations using the CTIO 1.5 m telescope and echelle spectrograph. Our observations were made almost every night over a two-month interval around the photometric minimum of $\\eta$ Car associated with the periastron passage of a hot companion. The photoionizing flux of the companion and heating related to colliding winds causes large changes in the wind properties of the massive primary star. Here we present an analysis of temporal variations in a sample of spectral lines that are clearly formed in the wind of the primary star. These lines are affected by a changing illumination of the flux of the secondary star during the periastron passage. We document the sudden onset of blue-shifted absorption that occurred in most of the lines near or slightly after periastron, and we argue that these absorption components are seen when we view the relatively undisturbed wind of the foreground primary star...

  16. EFFECTS OF UNRESOLVED MAGNETIC FIELD ON Fe I 617.3 AND 630.2 nm LINE SHAPES

    SciTech Connect (OSTI)

    Criscuoli, S.; Ermolli, I.; Giorgi, F. [INAF-Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monte Porzio Catone (Italy)] [INAF-Osservatorio Astronomico di Roma, Via Frascati 33, I-00040 Monte Porzio Catone (Italy); Uitenbroek, H. [National Solar Observatory, Sacramento Peak, P.O. Box 62, Sunpsot, NM 88349 (United States)] [National Solar Observatory, Sacramento Peak, P.O. Box 62, Sunpsot, NM 88349 (United States)

    2013-02-15

    The contribution of the quiet Sun to solar irradiance variability, either due to changes of the solar effective temperature or to the presence of unresolved magnetic field, is still poorly understood. In this study we investigate spectral line diagnostics that are sensitive to both temperature variations and the presence of small-scale unresolved magnetic features in these areas of the solar atmosphere. Specifically, we study the dependence on the magnetic flux density of three parameters describing the shape of two magnetically sensitive Fe I lines, at 630.2 nm and 617.3 nm, namely the line core intensity (IC), the FWHM, and the equivalent width (EQW). To this end we analyze observations of active region NOAA 11172, acquired with Interferometric Bidimensional Spectrometer at the Dunn Solar Telescope, as well as results from numerical synthesis. Our results show that IC is sensitive to both temperature and magnetic flux density variations, FWHM is mostly affected by magnetic field changes, and EQW is mostly sensitive to temperature. Variations of a few percent of the measured line parameters are found in observational data that were spatially degraded to represent quiet-Sun, disk-center, medium-resolution observations. It is therefore possible to disentangle magnetic from pure thermodynamic effects by the comparison of temporal variations of the EQW and the FWHM of either of the two Fe I lines.

  17. Determine Institutional Change Sustainability Goals | Department...

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

    Institutional Change Determine Institutional Change Sustainability Goals Determine Institutional Change Sustainability Goals Institutional Change Continuous Improvement Cycle...

  18. Institutional Change for Sustainability Contacts | Department...

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

    Institutional Change Institutional Change for Sustainability Contacts Institutional Change for Sustainability Contacts For more information about institutional change for...

  19. Climate ChangeClimate Change and Runoff Managementand Runoff Management

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Climate ChangeClimate Change and Runoff Managementand Runoff Management in Wisconsinin Wisconsin NASECA February 3, 2011 David S. Liebl #12;Overview · Understanding climate change · Wisconsin's changing Vegetation indicators #12;Indicators of a changing climate J. Magnuson Source: IPCC 2007 Potter, et al

  20. Climate Change Review of Muller's chapter on Climate Change from

    E-Print Network [OSTI]

    Browder, Tom

    Climate Change · Review of Muller's chapter on Climate Change from Physics for Future Society) controversy on climate change (e.g. resignation of Hal Lewis, Ivar Giaever and other notable. #12;Some climate changes basics · IPCC = Intergovernmental Panel on Climate Change · The IPCC

  1. Heat-Traced Fluid Transfer Lines 

    E-Print Network [OSTI]

    Schilling, R. E.

    1984-01-01

    or chemical), to maintain uniform fluid viscosity independent of ambient temperature, to establish uniform temperature above the dew point, and to maintain uniform temperature and prevent component dropout. water freeze protection is needed when a steam... of the parameters. A change in viscosity prJVides false readings and therefore results in unre iable process control. Viscosity control also helps provide uni form flow rates over a wide ran e of ambient temperatures, and in addition, pumps need not be oversized...

  2. Investment in Safety = Positive Bottom Line Results

    Broader source: Energy.gov [DOE]

    The American Society of Safety Engineers (ASSE) is suggesting that businesses invest now in workplace safety, as part of their business strategy. In response to a recent job report released by the U.S. Department of Labor showing little change in the employment rate, the ASSE is suggesting that investment in workplace safety to decrease injuries and illness will in turn increase profits and help create jobs.

  3. The covariant description of electric and magnetic field lines of null fields: application to Hopf-Ranada solutions

    E-Print Network [OSTI]

    S. J. van Enk

    2013-03-25

    The concept of electric and magnetic field lines is intrinsically non-relativistic. Nonetheless, for certain types of fields satisfying certain geometric properties, field lines can be defined covariantly. More precisely, two Lorentz-invariant 2D surfaces in spacetime can be defined such that magnetic and electric field lines are determined, for any observer, by the intersection of those surfaces with spacelike hyperplanes. An instance of this type of field is constituted by the so-called Hopf-Ranada solutions of the source-free Maxwell equations, which have been studied because of their interesting topological properties, namely, linkage of their field lines. In order to describe both geometric and topological properties in a succinct manner, we employ the tools of Geometric Algebra (aka Clifford Algebra) and use the Clebsch representation for the vector potential as well as the Euler representation for both magnetic and electric fields. This description is easily made covariant, thus allowing us to define electric and magnetic field lines covariantly in a compact geometric language. The definitions of field lines can be phrased in terms of 2D surfaces in space. We display those surfaces in different reference frames, showing how those surfaces change under Lorentz transformations while keeping their topological properties. As a byproduct we also obtain relations between optical helicity, optical chirality and generalizations thereof, and their conservation laws.

  4. Pipe line companies to install 14,766 miles of lines in 1994

    SciTech Connect (OSTI)

    Ives, G. Jr.

    1994-01-01

    This paper reviews the historical and projected pipeline construction activities in the US and around the world. It gives mileage values for all types of oil and gas transmission lines, both on and offshore. Tables provides information on the diameters of these pipelines and information on compressor stations planned and constructed. Known major construction projects are listed by company name with a brief description of the proposed project.

  5. The transcriptional diversity of 25 Drosophila cell lines

    SciTech Connect (OSTI)

    Cherbas, Lucy; Willingham, Aarron; Zhang, Dayu; Yang, Li; Zou, Yi; Eads, Brian D.; Carlson, Joseph W.; Landolin, Jane M.; Kapranov, Philipp; Dumais, Jacqueline; Samsonova, Anastasia; Choi, Jeong-Hyeon; Roberts, Johnny; Davis, Carrie A.; Tang, Haixu; van Baren, Marijke J.; Ghosh, Srinka; Dobin, Alexander; Bell, Kim; Lin, Wei; Langton, Laura; Duff, Michael O.; Tenney, Aaron E.; Zaleski, Chris; Brent, Michael R.; Hoskins, Roger A.; Kaufman, Thomas C.; Andrews, Justen; Graveley, Brenton R.; Perrimon, Norbert; Celniker, Susan E.; Gingeras, Thomas R.; Cherbas, Peter

    2010-11-15

    Drosophila melanogaster cell lines are important resources for cell biologists. Here, we catalog the expression of exons, genes, and unannotated transcriptional signals for 25 lines. Unannotated transcription is substantial (typically 19% of euchromatic signal). Conservatively, we identify 1405 novel transcribed regions; 684 of these appear to be new exons of neighboring, often distant, genes. Sixty-four percent of genes are expressed detectably in at least one line, but only 21% are detected in all lines. Each cell line expresses, on average, 5885 genes, including a common set of 3109. Expression levels vary over several orders of magnitude. Major signaling pathways are well represented: most differentiation pathways are ‘‘off’’ and survival/growth pathways ‘‘on.’’ Roughly 50% of the genes expressed by each line are not part of the common set, and these show considerable individuality. Thirty-one percent are expressed at a higher level in at least one cell line than in any single developmental stage, suggesting that each line is enriched for genes characteristic of small sets of cells. Most remarkable is that imaginal discderived lines can generally be assigned, on the basis of expression, to small territories within developing discs. These mappings reveal unexpected stability of even fine-grained spatial determination. No two cell lines show identical transcription factor expression. We conclude that each line has retained features of an individual founder cell superimposed on a common ‘‘cell line‘‘ gene expression pattern. Wereport the transcriptional profiles of 25 Drosophila melanogaster cell lines, principally by whole-genome tiling microarray analysis of total RNA, carried out as part of the modENCODE project. The data produced in this study add to our knowledge of the cell lines and of the Drosophila transcriptome in several ways. We summarize the expression of previously annotated genes in each of the 25 lines with emphasis on what those patterns reveal about the origins of the lines and the stability of spatial expression patterns. We also offer an initial analysis of previously unannotated transcripts in the cell lines.

  6. Multilayer network modeling of change propagation for engineering change management

    E-Print Network [OSTI]

    Pasqual, Michael C

    2010-01-01

    Engineering change management is a critical and challenging process within product development. One pervasive source of difficulty for this process is the phenomenon of change propagation, by which a change to one part or ...

  7. Climate Change Economics and Policy

    E-Print Network [OSTI]

    Romano, Daniela

    AFRICA COLLEGE Centre for Climate Change Economics and Policy Adapting to Climate Change 3 CLIMATE...Furthermore, there is strong scientific evidence that climate change will disrupt the global economy, environment and society a growing population in a changing climate is, therefore, a major global challenge. Changes in climate

  8. Sensor, method and system of monitoring transmission lines

    DOE Patents [OSTI]

    Syracuse, Steven J.; Clark, Roy; Halverson, Peter G.; Tesche, Frederick M.; Barlow, Charles V.

    2012-10-02

    An apparatus, method, and system for measuring the magnetic field produced by phase conductors in multi-phase power lines. The magnetic field measurements are used to determine the current load on the conductors. The magnetic fields are sensed by coils placed sufficiently proximate the lines to measure the voltage induced in the coils by the field without touching the lines. The x and y components of the magnetic fields are used to calculate the conductor sag, and then the sag data, along with the field strength data, can be used to calculate the current load on the line and the phase of the current. The sag calculations of this invention are independent of line voltage and line current measurements. The system applies a computerized fitter routine to measured and sampled voltages on the coils to accurately determine the values of parameters associated with the overhead phase conductors.

  9. Rotational Line Emission from Water in Protoplanetary Disks

    E-Print Network [OSTI]

    R. Meijerink; D. R. Poelman; M. Spaans; A. G. G. M. Tielens; A. E. Glassgold

    2008-10-09

    Circumstellar disks provide the material reservoir for the growth of young stars and for planet formation. We combine a high-level radiative transfer program with a thermal-chemical model of a typical T Tauri star disk to investigate the diagnostic potential of the far-infrared lines of water for probing disk structure. We discuss the observability of pure rotational H2O lines with the Herschel Space Observatory, specifically the residual gas where water is mainly frozen out. We find that measuring both the line profile of the ground 110-101 ortho-H2O transition and the ratio of this line to the 312-303 and 221-212 line can provide information on the gas phase water between 5-100 AU, but not on the snow line which is expected to occur at smaller radii.

  10. Radio frequency communication system utilizing radiating transmission lines

    DOE Patents [OSTI]

    Struven, Warren C. (San Carlos, CA)

    1984-01-01

    A radio communication system for use in tunnels, mines, buildings or other shielded locations in which a pair of radiating transmission lines (30), (31) extend through such location in spaced coextensive relation to each other. Each transmission line (30), (31) has at least one unidirectional amplifier (32), (33) interposed therein with the sense of the unidirectional amplifier (32) of one transmission line (30) being opposite to the sense of the unidirectional amplifier (33) of the other transmission line (31). Each of the amplifiers (32), (33) has a gain which is less than the coupling loss between the transmission lines (30), (31). Two or more mobile transceivers (35) in the location served by the system are coupled to the transmission lines (30), (31) by electromagnetic wave propagation in space in order to communicate directly with each other at a given radio frequency within the frequency range of the system.

  11. Status of Climate Change 

    E-Print Network [OSTI]

    North, G.

    2013-01-01

    stream_source_info ESL-KT-13-12-56.pdf.txt stream_content_type text/plain stream_size 3413 Content-Encoding UTF-8 stream_name ESL-KT-13-12-56.pdf.txt Content-Type text/plain; charset=UTF-8 Status of Climate Change 2013... CaTee Conference San Antonio 2013 ESL-KT-13-12-56 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Menu for Today • IPCC 2013: Assessment Report #5 • Facts about Climate Change • Who will Win, Who will Lose...

  12. Slow sound in lined flow ducts

    E-Print Network [OSTI]

    Auregan, Yves

    2015-01-01

    We consider the acoustic propagation in lined flow duct with a purely reactive impedance at the wall. This reacting liner has the capability to reduce the speed of sound, and thus to enhance the interaction between the acoustic propagation and the low Mach number flow ($M\\simeq0.3$). At the lower frequencies, there are typically 4 acoustic or hydrodynamic propagating modes, with 3 of them propagating in the direction of the flow. Above a critical frequency, there are only 2 propagating modes that all propagate in the direction of the flow. From the exact 2D formulation an approximate 1D model is developed to study the scattering of acoustic waves in a straight duct with varying wall impedance. This simple system, with a uniform flow and with a non-uniform liner impedance at the wall, permits to study the scattering between regions with different waves characteristics. Several situations are characterized to show the importance of negative energy waves, strong interactions between acoustic and hydrodynamic mod...

  13. Second Line of Defense Spares Program

    SciTech Connect (OSTI)

    Henderson, Dale L.; Holmes, Aimee E.; Muller, George; Mercier, Theresa M.; Brigantic, Robert T.; Perkins, Casey J.; Cooley, Scott K.; Thorsen, Darlene E.

    2012-11-20

    During Fiscal Year 2012, a team from the Pacific Northwest National Laboratory (PNNL) conducted an assessment and analysis of the Second Line of Defense (SLD) Sustainability spare parts program. Spare parts management touches many aspects of the SLD Sustainability Program including contracting and integration of Local Maintenance Providers (LMP), equipment vendors, analyses and metrics on program performance, system state of health, and maintenance practices. Standardized spares management will provide better data for decisions during site transition phase and will facilitate transition to host country sustainability ownership. The effort was coordinated with related SLD Sustainability Program initiatives, including a configuration items baselining initiative, a metrics initiative, and a maintenance initiative. The spares study has also led to pilot programs for sourcing alternatives that include regional intermediate inventories and partnering agreements that leverage existing supply chains. Many partners from the SLD Sustainability program contributed to and were consulted in the course of the study. This document provides a description of the findings, recommendations, and implemented solutions that have resulted from the study.

  14. Contingency Analysis of Cascading Line Outage Events

    SciTech Connect (OSTI)

    Thomas L Baldwin; Magdy S Tawfik; Miles McQueen

    2011-03-01

    As the US power systems continue to increase in size and complexity, including the growth of smart grids, larger blackouts due to cascading outages become more likely. Grid congestion is often associated with a cascading collapse leading to a major blackout. Such a collapse is characterized by a self-sustaining sequence of line outages followed by a topology breakup of the network. This paper addresses the implementation and testing of a process for N-k contingency analysis and sequential cascading outage simulation in order to identify potential cascading modes. A modeling approach described in this paper offers a unique capability to identify initiating events that may lead to cascading outages. It predicts the development of cascading events by identifying and visualizing potential cascading tiers. The proposed approach was implemented using a 328-bus simplified SERC power system network. The results of the study indicate that initiating events and possible cascading chains may be identified, ranked and visualized. This approach may be used to improve the reliability of a transmission grid and reduce its vulnerability to cascading outages.

  15. TRANSPORT OF WASTE SIMULANTS IN PJM VENT LINES

    SciTech Connect (OSTI)

    Qureshi, Z

    2007-02-21

    The experimental work was conducted to determine whether there is a potential for waste simulant to transport or 'creep' up the air link line and contaminate the pulse jet vent system, and possibly cause long term restriction of the air link line. Additionally, if simulant creep occurred, establish operating parameters for washing down the line. The amount of the addition of flush fluids and mixer downtime must be quantified.

  16. Inertial confinement fusion method producing line source radiation fluence

    DOE Patents [OSTI]

    Rose, Ronald P. (Peters Township, Washington County, PA)

    1984-01-01

    An inertial confinement fusion method in which target pellets are imploded in sequence by laser light beams or other energy beams at an implosion site which is variable between pellet implosions along a line. The effect of the variability in position of the implosion site along a line is to distribute the radiation fluence in surrounding reactor components as a line source of radiation would do, thereby permitting the utilization of cylindrical geometry in the design of the reactor and internal components.

  17. Economist.com Monday October 8th 2001 denotes premium content | Log in | Free registration | Help

    E-Print Network [OSTI]

    and vastly more energy-efficient PEOPLE have become accustomed to thinking of artificial intelligence, such as object recognition or navigation, this new breed of "neuromorphic engineers" builds machines that work

  18. ERROR IN LINEAR INTERPOLATION Let P1(x) denote the linear polynomial interpolating

    E-Print Network [OSTI]

    Atkinson, Kendall

    (x) - P1(x) = (x - x0) (x - x1) 2 f00(cx) for some cx between the minimum and maximum of x0, x1, and x cx x1 #12;(x - x0) (x1 - x) 0, x0 cx x1 and therefore (x - x0) (x1 - x) " log10 e 2x2 1 # log10]. Then f(x)-Pn(x) = (x - x0) (x - x1) · · · (x - xn) (n + 1)! f(n+1) (cx) with cx some point between

  19. Inverse Analysis from a Condorcet robustness denotation of valued outranking relation

    E-Print Network [OSTI]

    Bisdorff, Raymond

    proposed in MAUT and MAVT contexts: · Jacquet-Lagr`eze & Siskos 82; · Mousseau, Figueira, Dias, Gomes da

  20. GEO 309 Environmental Justice, Assigned Reading, Winter, 2008 "*" denotes material posted on Blackboard

    E-Print Network [OSTI]

    on Blackboard Week 1: Introduction; Race and Racism Adamson, J., American Indian Literature, Environmental Injustice: Definitions, Evidence, and Methodology *Pulido, L., Rethinking environmental racism: White.D., Decision making, in Faces of Environmental Racism: Confronting Issues of Global Justice, Second Ed., edited

  1. A simple line wave generator using commercial explosives

    SciTech Connect (OSTI)

    Morris, John S; Jackson, Scott I; Hill, Larry G

    2009-01-01

    We present a simple and inexpensive explosive line wave generator has been designed using commercial sheet explosive and plane wave lens concepts. The line wave generator is constructed using PETN and RDX based sheet explosive for the slow and fast components respectively. The design permits the creation of any desired line width. A series of experiments were performed on a 100 mm design, measuring the detonation arrival time at the output of the generator using a streak camera. An iterative technique was used to adjust the line wave generator's slow and fast components, so as to minimize the arrival time deviation. Designs, test results, and concepts for improvements will be discussed.

  2. Electrical and Biological Effects of Transmission Lines: A Review.

    SciTech Connect (OSTI)

    Lee, Jack M.

    1989-06-01

    This review describes the electrical properties of a-c and d-c transmission lines and the resulting effects on plants, animals, and people. Methods used by BPA to mitigate undesirable effects are also discussed. Although much of the information in this review pertains to high-voltage transmission lines, information on distribution lines and electrical appliances is included. The electrical properties discussed are electric and magnetic fields and corona: first for alternating-current (a-c) lines, then for direct current (d-c).

  3. Emission Line Properties of the Large Bright Quasar Survey

    E-Print Network [OSTI]

    Karl Forster; Paul J. Green; Thomas L. Aldcroft; Marianne Vestergaard; Craig B. Foltz; Paul C. Hewett

    2000-11-20

    We present measurements of the optical/UV emission lines for a large homogeneous sample of 993 quasars from the Large Bright Quasar Survey. Our largely automated technique accounts for continuum breaks and galactic reddening, and we perform multicomponent fits to emission line profiles, including the effects of blended iron emission, and of absorption lines both galactic and intrinsic. Here we describe the fitting algorithm and present the results of line fits to the LBQS sample, including upper limits to line equivalent widths when warranted. The distribution of measured line parameters, principally equivalent width and FWHM, are detailed for a variety of lines, including upper limits. We thus initiate a large-scale investigation of correlations between the high energy continuum and emission lines in quasars, to be extended to complementary samples using similar techniques. High quality, reproducible measurements of emission lines for uniformly selected samples will advance our understanding of active galaxies, especially in a new era of large surveys selected by a variety of complementary methods.

  4. EIS-0474: Southline Transmission Line Project; Arizona and New...

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

    consist of a new 225-mile transmission line between existing substations at Afton, New Mexico, and Apache, Arizona, and improvements to approximately 130 miles of existing...

  5. Proposed Southline Transmission Line Project - Volume 4 of 4...

    Office of Environmental Management (EM)

    2 Appendix J J-1 Southline Transmission Line Project Draft Environmental Impact Statement and Draft Resource Management Plan Amendment BLM LAND USE AUTHORIZATIONS 1...

  6. Secretary Chu Visits Russian Seaport, Checks Out Second Line...

    Energy Savers [EERE]

    for me? The Second Line of Defense program cracks down on nuclear smuggling by installing radiation detection equipment at ports, border crossings and airports around the world....

  7. EIS-0502: Hot Springs to Anaconda Transmission Line Rebuild Project...

    Energy Savers [EERE]

    Springs to Anaconda Transmission Line Rebuild Project, Montana SUMMARY DOE's Bonneville Power Administration (BPA) is preparing an EIS that will analyze the potential environmental...

  8. To: Mansueti, Lawrence Subject: RE: Pepco Scheduled Line Repair...

    Office of Environmental Management (EM)

    my concern that the above scheduled line outage was likely to cause Mirant plant emission exceedances, putting at risk the health of over 4000 Alexandrians residing near the...

  9. Historical Time Line and Information About the Hanford Site

    SciTech Connect (OSTI)

    Briggs Jr, David

    2001-03-07

    Historical time line of the Hanford Site spanning from 1940 through 1997, including photographs and other information regarding the town sites and living conditions.

  10. A 1.3 cm Line Survey toward Orion KL

    E-Print Network [OSTI]

    Gong, Y; Thorwirth, S; Spezzano, S; Menten, K M; Walmsley, C M; Wyrowski, F; Mao, R Q; Klein, B

    2015-01-01

    Orion KL has served as a benchmark for spectral line searches throughout the (sub)millimeter regime. The main goal is to systematically study spectral characteristics of Orion KL in the 1.3 cm band. We carried out a spectral line survey (17.9 GHz to 26.2 GHz) with the Effelsberg-100 m telescope towards Orion KL. We find 261 spectral lines, yielding an average line density of about 32 spectral features per GHz above 3$\\sigma$. The identified lines include 164 radio recombination lines (RRLs) and 97 molecular lines. A total of 23 molecular transitions from species known to exist in Orion KL are detected for the first time in the interstellar medium. Non-metastable 15NH3 transitions are detected in Orion KL for the first time. Based on the velocity information of detected lines and the ALMA images, the spatial origins of molecular emission are constrained and discussed. A narrow feature is found in SO2 ($8_{1,7}-7_{2,6}$), possibly suggesting the presence of a maser line. Column densities and fractional abundanc...

  11. Development of aerogel-lined targets for inertial confinement...

    Office of Scientific and Technical Information (OSTI)

    aerogel-lined targets for inertial confinement fusion experiments Braun, T 36 MATERIALS SCIENCE Abstract not provided Lawrence Livermore National Laboratory (LLNL), Livermore, CA...

  12. Notice of Availability of Plains & Eastern Clean Line Transmission...

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

    converter stations in Oklahoma and Tennessee; an approximately 720-mile high voltage direct current (HVDC) transmission line; an alternating current (AC) collection system;...

  13. Magnetic Field Line Tracing Calculations for Conceptual PFC Design...

    Office of Scientific and Technical Information (OSTI)

    Conference: Magnetic Field Line Tracing Calculations for Conceptual PFC Design in the National Compact Stellarator Experiment Citation Details In-Document Search Title: Magnetic...

  14. ,"Energy","Water","Renewable","Petroleum","Alt. Fuel",,"On-Line...

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

    Energy","Water","Renewable","Petroleum","Alt. Fuel",,"On-Line Data Collection System",,"Report Period","Due In",,,"Primary","Secondary","Secondary" 2003,,,"EMS4","Environmental...

  15. Section 1222 Program - Proposed Plains & Eastern Clean Line Project...

    Energy Savers [EERE]

    Electricity Policy Coordination and Implementation Transmission Planning Section 1222 of the Energy Policy Act 2005 Proposed Project: Plains & Eastern Clean Line ...

  16. EA-1880: Big Bend to Witten Transmission Line Project, South...

    Office of Environmental Management (EM)

    transmission line, all in South Dakota. Proposed action is related to the Keystone XL project (see DOEEIS-0433-S1). Public Comment Opportunities None available at this...

  17. Global Change Sustainability

    E-Print Network [OSTI]

    Tipple, Brett

    Global Change and Sustainability Center The GCSC is an inclusionary and interdisciplinary hub that promotes, coordinates, and conducts local to global environmental- and sustainability-related research to complex environmental and sustainability issues and challenges. 2012 Annual Report #12;1GCSC 2012 ANNUAL

  18. Leadership Institutional Change Principle

    Broader source: Energy.gov [DOE]

    For changing behavior among employees, leaders in Federal agencies should visibly communicate their own commitments to sustainability in the workplace. Such visible leadership will help achieve sustainability goals in the short term and continue to provide motivation for long-term benefits.

  19. Connecticut Why Change?

    E-Print Network [OSTI]

    Chandy, John A.

    The New Connecticut PR-1 Why Change? Why Now? Connecticut's PR-1 was last updated in 1995. Over.D. Associate Research Professor Director, Connecticut Transportation Safety Research Center Connecticut Transportation Institute University of Connecticut 270 Middle Turnpike, Unit 5202 Storrs, CT 06269 860-486-8426 e

  20. Phase change compositions

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH); Griffen, Charles W. (Mason, OH)

    1986-01-01

    Compositions containing crystalline, long chain, alkyl hydrocarbons as phase change materials including cementitious compositions containing the alkyl hydrocarbons neat or in pellets or granules formed by incorporating the alkyl hydrocarbons in polymers or rubbers; and polymeric or elastomeric compositions containing alkyl hydrocarbons.

  1. Phase change compositions

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH)

    1989-01-01

    Compositions containing crystalline, straight chain, alkyl hydrocarbons as phase change materials including cementitious compositions containing the alkyl hydrocarbons neat or in pellets or granules formed by incorporating the alkyl hydrocarbons in polymers or rubbers; and polymeric or elastomeric compositions containing alkyl hydrocarbons.

  2. ENERGY FLOWS CLIMATE CHANGE

    E-Print Network [OSTI]

    Schwartz, Stephen E.

    ENERGY FLOWS FORCINGS CLIMATE CHANGE A REALLY TOUGH PROBLEM Stephen E. Schwartz, BNL, 7-20-11 www average temperature 15°C or 59°F #12;ATMOSPHERIC RADIATION Power per area Energy per time per area Unit" temperature to radiative flux. #12;GLOBAL ENERGY BALANCE Global and annual average energy fluxes in watts per

  3. ETHICAL DILEMMAS IN CLIMATE CHANGE

    E-Print Network [OSTI]

    Chauve, Cedric

    ETHICAL DILEMMAS IN CLIMATE CHANGE RECOMMENDATIONS FOR CANADIAN CLIMATE POLICY Roundtable Dialogue AND SELECTED THE FOLLOWING CLIMATE CHANGE POLICY AREAS FOR DETAILED DISCUSSION. PARTICIPANTS THEN WORKED Dilemmas in Climate Change roundtable dialogue, convened by Simon Fraser University's Centre for Dialogue

  4. Climate Change and National Security

    E-Print Network [OSTI]

    Alyson, Fleming; Summer, Kelly; Summer, Martin; Lauren, Franck; Jonathan, Mark

    2015-01-01

    for the impacts of climate change on national security. Pagea warming world. Page 11 “Climate change acts as a threatand the Threat of Climate Change,” The CNA Corporation, 2007

  5. Farming: A Climate Change Culprit

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

    Farming: A Climate Change Culprit Farming: A Climate Change Culprit Simulations run at NERSC show impact of land-use change on African monsoon precipitation June 7, 2014 | Tags:...

  6. book review: Climate change mapped

    E-Print Network [OSTI]

    Shanahan, Mike

    2012-01-01

    of millions 2 .   Climate change is a moving target and introductions  to  climate change’, the Atlas stands out media reporting on climate change.   Cambridge University 

  7. Climate Change at Annual Timescales

    E-Print Network [OSTI]

    Stine, Alexander Robin

    2010-01-01

    carbon cycling to global climate change, Nature, 393 (6682),2005. Meehl, G. , et al. , Climate Change 2007: The PhysicalIntergovernmental Panel on Climate Change, chap. 10. Global

  8. MAPPING CLIMATE CHANGE EXPOSURES, VULNERABILITIES,

    E-Print Network [OSTI]

    MAPPING CLIMATE CHANGE EXPOSURES, VULNERABILITIES, AND ADAPTATION TO PUBLIC HEALTH RISKS's California Climate Change Center JULY 2012 CEC5002012041 Prepared for: California Energy Commission of California. #12; ii ABSTRACT This study reviewed first available frameworks for climate change adaptation

  9. International Finance and Climate Change

    E-Print Network [OSTI]

    Zhang, Junshan

    International Finance and Climate Change Thursday, October 17, 2013 Breakfast ­ 8:30 a Principal Climate Change Specialist, Climate Business Group at International Finance Corporation, World Bank Group Vladimir Stenek Senior Climate Change Specialist, Climate Business Department of the International

  10. Electron Paramagnetic Resonance Line Shifts and Line Shape Changes Due to Spin Exchange of Nitroxide Free Radicals in Liquids. 7. Singly Charged Surfactant Nitroxide

    E-Print Network [OSTI]

    Bales, Barney

    ,2,6,6-tetramethylpiperidinyl-N-oxy bromide-d16 (DCAT12) are studied as functions of the molar concentration, c ) 0.1-8 mM, and the temperature from 273 to 353 K. This concentration range is below the critical micelle concentration, cmc of Nitroxide Free Radicals in Liquids. 7. Singly Charged Surfactant Nitroxide Barney L. Bales,*, Francis L

  11. Climate change: Clinton affirms binding emissions reduction policy

    SciTech Connect (OSTI)

    Fairley, P.

    1996-12-04

    In Australia last month President Clinton called for an international agreement to negotiate {open_quotes}legally binding commitments to fight climate change.{close_quotes} His comments affirmed the line the Administration adopted in July and lent prominence to the effort to bring about a treaty by December 1997. Environmentalists welcomed Clinton`s comments, but industry response is divided. The Global Climate Coalition (Washington), of which CMA is a member, has tried to slow negotiations by questioning the scientific consensus on climate change and suggesting {open_quotes}serious damage to the American economy{close_quotes} could result from emissions reduction.

  12. Strategies for Achieving Institutional Change

    Broader source: Energy.gov [DOE]

    Many strategies—including those derived from Institutional Change Principles–may be used to effect institutional change in support of energy and sustainability objectives.

  13. Climate change risk and response

    E-Print Network [OSTI]

    Kahrl, Fredrich; Roland-Holst, David

    2008-01-01

    the Potential Consequences of Climate Variability and Changeand Kate Scow. 2006. “Climate Change: Page 117 ChallengesLandscapes. ” California Climate Change Center White Paper.

  14. Climate change risk and response

    E-Print Network [OSTI]

    Kahrl, Fredrich; Roland-Holst, David

    2008-01-01

    Climate Change and Electricity Demand: Applying the NewClimate Change and Electricity Demand in California. ”Extreme Heat, and Electricity Demand in California. ”

  15. The impact of gas bulk rotation on the Ly? line

    SciTech Connect (OSTI)

    Garavito-Camargo, Juan N.; Forero-Romero, Jaime E.; Dijkstra, Mark E-mail: je.forero@uniandes.edu.co

    2014-11-10

    We present results of radiative transfer calculations to measure the impact of gas bulk rotation on the morphology of the Ly? emission line in distant galaxies. We model a galaxy as a sphere with an homogeneous mixture of dust and hydrogen at a constant temperature. These spheres undergo solid-body rotation with maximum velocities in the range 0-300 km s{sup –1} and neutral hydrogen optical depths in the range ?{sub H} = 10{sup 5}-10{sup 7}. We consider two types of source distributions in the sphere: central and homogeneous. Our main result is that rotation introduces a dependence of the line morphology with viewing angle and rotational velocity. Observations with a line of sight parallel to the rotation axis yield line morphologies similar to the static case. For lines of sight perpendicular to the rotation axis, both the intensity at the line center and the line width increase with rotational velocity. Along the same line of sight, the line becomes single peaked at rotational velocities close to half the line width in the static case. Notably, we find that rotation does not induce any spatial anisotropy in the integrated line flux, the escape fraction or the average number of scatterings. This is because Lyman scattering through a rotating solid-body proceeds identically to the static case. The only difference is the Doppler shift from the different regions in the sphere that move with respect to the observer. This allows us to derive an analytic approximation for the viewing-angle dependence of the emerging spectrum, as a function of rotational velocity.

  16. CHANGE PROCESS MODELLING USING THE EKD-CHANGE MANAGEMENT METHOD

    E-Print Network [OSTI]

    Boyer, Edmond

    CHANGE PROCESS MODELLING USING THE EKD-CHANGE MANAGEMENT METHOD S. Nurcan* , J. Barrios*1 , G The Enterprise Knowledge Development - Change Management Method (EKD-CMM) provides a systematic way to organise and to guide the organisational change management. The EKD-CMM road map, implemented in the electronic guide

  17. Four-dimensional visualization of single and multiple laser filaments using in-line holographic microscopy

    SciTech Connect (OSTI)

    Abdollahpour, Daryoush; Papazoglou, Dimitrios G.; Tzortzakis, Stelios

    2011-11-15

    It is shown, both through simulations and experiments, that the in-line holographic microscopy technique can be used to retrieve very small refractive-index perturbations caused during the filamentation of ultrashort laser pulses. This technique provides the possibility of having spatially and temporally (four dimensions) resolved measurements of refractive-index changes, down to 10{sup -4}, from objects with diameters as small as 10 {mu}m. Moreover, we demonstrate the power of the technique in discriminating multiple filaments in a precise quantitative way.

  18. HYPERFINE-DEPENDENT gf-VALUES OF Mn I LINES IN THE 1.49-1.80 ?m H BAND

    SciTech Connect (OSTI)

    Andersson, M.; Hutton, R.; Zou, Y. [The Key Lab of Applied Ion Beam Physics, Ministry of Education (China); Grumer, J.; Brage, T. [Division of Mathematical Physics, Department of Physics, Lund University (Sweden); Ryde, N.; Blackwell-Whitehead, R. [Department of Astronomy and Theoretical Physics, Lund University (Sweden); Jönsson, P., E-mail: rhutton@fudan.edu.cn [School of Technology, Malmö University (Sweden)

    2015-01-01

    The three Mn I lines at 17325, 17339, and 17349 Å are among the 25 strongest lines (log (gf) > 0.5) in the H band. They are all heavily broadened due to hyperfine structure, and the profiles of these lines have so far not been understood. Earlier studies of these lines even suggested that they were blended. In this work, the profiles of these three infrared (IR) lines have been studied theoretically and compared to experimental spectra to assist in the complete understanding of the solar spectrum in the IR. It is shown that the structure of these lines cannot be described in the conventional way using the diagonal A and B hyperfine interaction constants. The off-diagonal hyperfine interaction not only has a large impact on the energies of the hyperfine levels, but also introduces a large intensity redistribution among the hyperfine lines, changing the line profiles dramatically. By performing large-scale calculations of the diagonal and off-diagonal hyperfine interaction and the gf-values between the upper and lower hyperfine levels and using a semi-empirical fitting procedure, we achieved agreement between our synthetic and experimental spectra. Furthermore, we compare our results with observations of stellar spectra. The spectra of the Sun and the K1.5 III red giant star Arcturus were modeled in the relevant region, 1.73-1.74 ?m, using our theoretically predicted gf-values and energies for each individual hyperfine line. Satisfactory fits were obtained and clear improvements were found using our new data compared with the old available Mn I data. A complete list of energies and gf-values for all the 3d {sup 5}4s({sup 7} S)4d e{sup 6}D - 3d {sup 5}4s({sup 7} S)4f w{sup 6}F hyperfine lines are available as supporting material, whereas only the stronger lines are presented and discussed in detail in this paper.

  19. Universal deformation of soft substrates near a contact line and the direct measurement of solid surface stresses

    E-Print Network [OSTI]

    Robert W. Style; Yonglu Che; John. S. Wettlaufer; Larry A. Wilen; Eric R. Dufresne

    2012-10-25

    Droplets deform soft substrates near their contact lines. Using confocal microscopy, we measure the deformation of silicone gel substrates due to glycerol and fluorinated-oil droplets for a range of droplet radii and substrate thicknesses. For all droplets, the substrate deformation takes a universal shape close to the contact line that depends on liquid composition, but is independent of droplet size and substrate thickness. This shape is determined by a balance of interfacial tensions at the contact line and provides a novel method for direct determination of the surface stresses of soft substrates. Moreover, we measure the change in contact angle with droplet radius and show that Young's law fails for small droplets when their radii approach an elastocapillary length scale. For larger droplets the macroscopic contact angle is constant, consistent with Young's law.

  20. The Moving Contact Line in a Shallow Water Model

    E-Print Network [OSTI]

    Bridson, Robert

    The Moving Contact Line in a Shallow Water Model by Albert C. Wong B.Sc., The University of British with a shallow water model allowing us to track the contact line of the fluid in the shallow water model equation approach. ii #12;Table of Contents Abstract

  1. Synchronization phenomena for coupled delay-line oscillators

    E-Print Network [OSTI]

    Chicone, Carmen

    F@missouri.edu. 1 #12;1 Introduction Delay equation models for surface acoustic wave (SAW) delay-line devices-built surface acoustic wave (SAW) delay-line oscillators is examined. A bifurcation analysis reveals, averaging, Hopf bifurca- tion, Surface acoustic waves. AMS Classification: 34K60 Corresponding author

  2. Specification-based Testing for Software Product Lines Temesghen Kahsai

    E-Print Network [OSTI]

    Schlingloff, Holger

    Specification-based Testing for Software Product Lines Temesghen Kahsai Markus Roggenbach Bernd-Holger Schlingloff Abstract In this paper, we develop a testing theory for specification-based software product line development. Starting with a framework for the evaluation of test cases with respect to formal specifications

  3. Product-Line-Based Requirements Customization for Web Service Compositions

    E-Print Network [OSTI]

    Lutz, Robyn R.

    Product-Line-Based Requirements Customization for Web Service Compositions Hongyu Sun1 , Robyn Lutz composite web services by incorporating a software product-line engineering approach into web-service the resulting web- service compositions. By first creating a web-service composition search space that satisfies

  4. Transmission Line Boundary Protection Using Wavelet Transform and Neural Network

    E-Print Network [OSTI]

    is verified using frequency-dependent transmission line model and the test results prove its enhanced use data from two ends. The non-unit protection such as distance relay, can not protect the entire end only. In this case, the relay at one end can protect the entire line length with no intentional

  5. Transmission Line Resistance Compression Networks for Microwave Rectifiers

    E-Print Network [OSTI]

    Perreault, Dave

    Transmission Line Resistance Compression Networks for Microwave Rectifiers Taylor W. Barton, Joshua--This work presents a development of multi-way transmission-line resistance compression networks (TLRCNs) and their application to rf-to-dc conversion. We derive analytical expressions for the behavior of TLRCNs, and describe

  6. Pipelineable On-Line Encryption Farzaneh Abed1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Pipelineable On-Line Encryption Farzaneh Abed1 , Scott Fluhrer2 , Christian Forler1, Eik List1 chosen-ciphertext attacks with pipelineability to support efficient implementations. POE combines a block POET, a provably secure on-line AE scheme, which inherits pipelineability and chosen

  7. Situ soil sampling probe system with heated transfer line

    DOE Patents [OSTI]

    Robbat, Jr., Albert (Andover, MA)

    2002-01-01

    The present invention is directed both to an improved in situ penetrometer probe and to a heated, flexible transfer line. The line and probe may be implemented together in a penetrometer system in which the transfer line is used to connect the probe to a collector/analyzer at the surface. The probe comprises a heater that controls a temperature of a geologic medium surrounding the probe. At least one carrier gas port and vapor collection port are located on an external side wall of the probe. The carrier gas port provides a carrier gas into the geologic medium, and the collection port captures vapors from the geologic medium for analysis. In the transfer line, a flexible collection line that conveys a collected fluid, i.e., vapor, sample to a collector/analyzer. A flexible carrier gas line conveys a carrier gas to facilitate the collection of the sample. A system heating the collection line is also provided. Preferably the collection line is electrically conductive so that an electrical power source can generate a current through it so that the internal resistance generates heat.

  8. Transient Behavior of Two-Machine Geometric Production Lines

    E-Print Network [OSTI]

    Shimkin, Nahum

    Transient Behavior of Two-Machine Geometric Production Lines Semyon M. Meerkov Nahum Shimkin. Keywords: Production lines; Geometric reliability model; Production rate; Transient behavior; Effects of up to technological constraints; this leads to production losses in the subsequent shift (until the buffer occupancy

  9. Walleye fingerling culture in lined and earthen substrate ponds

    E-Print Network [OSTI]

    Walleye fingerling culture in lined and earthen substrate ponds Matthew J. Ward #12;Objectives 1://www.lakevermilionrealestate #12;Study Site, Design, and Statistics · Experimental unit was a 0.8-ha pond ­ Two treatments: Lined-test ­ Significance set at 0.05 * Blue Dog Lake State Fish Hatchery #12;Liner Material · Firestone Product ­ Pond

  10. On the observability of optically thin coronal hyperfine structure lines

    SciTech Connect (OSTI)

    Chatzikos, M.; Ferland, G. J. [University of Kentucky, Lexington, KY 40506 (United States); Williams, R. J. R. [AWE plc, Aldermaston, Reading RG7 4PR (United Kingdom); Fabian, A. C., E-mail: mchatzikos@gmail.com [Institute of Astronomy, Madingley Road, Cambridge CB3 0HA (United Kingdom)

    2014-06-01

    We present CLOUDY calculations for the intensity of coronal hyperfine lines in various environments. We model indirect collisional and radiative transitions, and quantify the collisionally excited line emissivity in the density-temperature phase space. As an observational aid, we also express the emissivity in units of that in the 0.4-0.7 keV band. For most hyperfine lines, knowledge of the X-ray surface brightness and the plasma temperature is sufficient for rough estimates. We find that the radiation fields of both Perseus A and Virgo A can enhance the populations of highly ionized species within 1 kpc. They can also enhance line emissivity within the cluster core. This could have implications for the interpretation of spectra around bright active galactic nuclei. We find the intensity of the {sup 57}Fe XXIV ?3.068 mm line to be about two orders of magnitude fainter than previously thought, at ?20 ?K. Comparably bright lines may be found in the infrared. Finally, we find the intensity of hyperfine lines in the Extended Orion Nebula to be low, due to the shallow sightline. Observations of coronal hyperfine lines will likely be feasible with the next generation of radio and submillimeter telescopes.

  11. Distributed MEMS Transmission Lines for Tunable Filter Applications

    E-Print Network [OSTI]

    York, Robert A.

    Distributed MEMS Transmission Lines for Tunable Filter Applications Yu Liu, Andrea Borgioli, Amit S: This paper describes the design and fabrication of a distributed MEMS ( )transmission line DMTL , used is a coplanar waveguide periodically loaded with continuously-variable MEMS capacitors. A tunable bandpass

  12. Optimization of Automated Float Glass Lines Byungsoo Na, Shabbir Ahmed

    E-Print Network [OSTI]

    Ahmed, Shabbir

    Optimization of Automated Float Glass Lines Byungsoo Na, Shabbir Ahmed , George Nemhauser and Joel flat glass products being manufactured on float glass lines. New technologies are allowing float glass manufacturers to increase the level of automation in their plants, but the question of how to effectively use

  13. Development of nuclear receptor transfected Caco-2 cell lines

    E-Print Network [OSTI]

    Korjamo, Timo

    2006-10-27

    DEVELOPMENT OF NUCLEAR RECEPTOR TRANSFECTED CACO-2 CELL LINES Timo Korjamo University of Kuopio Finland 27th October 2006 ? Background ? Cell lines ? Gene expression ? Functional experiments ? Conclusions Intestinal absorption ? Small intestine... Reinisalo ? Technical assistance: Paula Nyyss?nen, Markku Taskinen ? Collaboration: Professor Pelkonen's group (Univ. Oulu, Finland) ? Funding: Finnish Funding Agency for Technology and Innovation (TEKES) ...

  14. ALARA Review of the Spallation Neutron Source Accumulator Ring and Transfer Lines

    SciTech Connect (OSTI)

    Haire, M.J.

    2003-06-30

    The Spallation Neutron Source (SNS) is designed to meet the growing need for new tools that will deepen our understanding in materials science, life science, chemistry, fundamental and nuclear physics, earth and environmental sciences, and engineering sciences. The SNS is an accelerator-based neutron-scattering facility that when operational will produce an average beam power of 2 MW at a repetition rate of 60 Hz. The accelerator complex consists of the front-end systems, which will include an ion source; a 1-GeV full-energy linear accelerator; a single accumulator ring and its transfer lines; and a liquid mercury target. This report documents an as-low-as-reasonably-achievable (ALARA) review of the accumulator ring and transfer lines at their early design stage. An ALARA working group was formed and conducted a review of the SNS ring and transfer lines at the {approx}25% complete design stage to help ensure that ALARA principles are being incorporated into the design. The radiological aspects of the SNS design criteria were reviewed against regulatory requirements and ALARA principles. Proposed features and measures were then reviewed against the SNS design criteria. As part of the overall review, the working group reviewed the design manual; design drawings and process and instrumentation diagrams; the environment, safety, and health manual; and other related reports and literature. The group also talked with SNS design engineers to obtain explanations of pertinent subject matter. The ALARA group found that ALARA principles are indeed being incorporated into the early design stage. Radiation fields have been characterized, and shielding calculations have been performed. Radiological issues are being adequately addressed with regard to equipment selection, access control, confinement structure and ventilation, and contamination control. Radiation monitoring instrumentation for worker and environment protection are also being considered--a good practice at this early design stage. The ring and transfer lines are being designed for hands-on maintenance. The SNS beam loss criteria, which determine radiation dose design, are a factor of {approx}30 lower than the lowest that has been achieved at any existing proton synchrotron and accumulator rings. This demonstrates that ALARA considerations are an important part of SNS design. A noteworthy example of the ALARA principal being incorporated into the SNS is the hybrid ring lattice design recently approved by the SNS change control process. The new lattice design increases calculated acceptance by about 50% and improves the expected collimator efficiency from 80 to 95%. As a result, the expected calculated beam loss rate, and resulting radiation dose rates, are significantly improved. Another major design change with ALARA implications was the change from an alpha to an omega configuration for the high-energy beam transport (HEBT) system, ring, and ring-to-target beam transport (RTBT) system. Because of this change, the ring and transfer lines will have crane coverage, eliminating the need for personnel to be near activated equipment for repair and removal. By using the crane, extensive shielding can be placed around highly radioactive equipment (e.g., collimators), and the equipment can be moved by remote control. As part of the change from an alpha to omega configuration, the tunnel width was increased by 2 ft. This increased width will allow easier access to failed equipment, reducing radiation exposure time to workers during maintenance and repair. In addition, a personnel entrance was added to the ring between the HEBT and RTBT so that personnel will not have to enter this area directly through the HEBT or RTBT. This addition will shorten the travel distance, and therefore the time, that personnel performing maintenance work on radioactive equipment will need to be in the area, reducing potential dose. In the RTBT beam line, a hatchway will be placed above the collimators and quad doublet magnets near the target to facilitate their removal. This design was chosen in lieu

  15. Continuous human cell lines and method of making same

    DOE Patents [OSTI]

    Stampfer, M.R.

    1985-07-01

    Substantially genetically stable continuous human cell lines derived from normal human mammary epithelial cells (HMEC) and processes for making and using the same. In a preferred embodiment, the cell lines are derived by treating normal human mammary epithelial tissue with a chemical carcinogen such as benzo(a)pyrene. The novel cell lines serve as useful substrates for elucidating the potential effects of a number of toxins, carcinogens and mutagens as well as of the addition of exogenous genetic material. The autogenic parent cells from which the cell lines are derived serve as convenient control samples for testing. The cell lines are not neoplastically transformed, although they have acquired several properties which distinguish them from their normal progenitors. 2 tabs.

  16. Theoretical X-ray Line Profiles from Colliding Wind Binaries

    E-Print Network [OSTI]

    Henley, D B; Pittard, J M

    2003-01-01

    We present theoretical X-ray line profiles from a range of model colliding wind systems. In particular, we investigate the effects of varying the stellar mass-loss rates, the wind speeds, and the viewing orientation. We find that a wide range of theoretical line profile shapes is possible, varying with orbital inclination and phase. At or near conjunction, the lines have approximately Gaussian profiles, with small widths (HWHM ~ 0.1 v_infty) and definite blue- or redshifts (depending on whether the star with the weaker wind is in front or behind). When the system is viewed at quadrature, the lines are generally much broader (HWHM ~ v_infty), flat-topped and unshifted. Local absorption can have a major effect on the observed profiles - in systems with mass-loss rates of a few times 10^{-6} Msol/yr the lower energy lines (E wind of the primary. The orbital variation ...

  17. Line graphs e contrazioni: un approccio rigoroso alla space syntax

    E-Print Network [OSTI]

    D'Autilia, Roberto

    2015-01-01

    The methods of the space syntax have been the subject of extensive discussion, and several techniques to identify the axis lines have been proposed. The space syntax can be represented in terms of line graph, a graphs defined on the edge of a given primary graph. By means of the line graph algorithms, a system of labels defined on the edges of the primary graph is transformed into a system of labels on the vertices of the line graph. The contraction of adjacent edges with the same label allows to build a more general graph than those generated with the methods of the space syntax. By means of the functions implemented in Mathematica is therefore possible to redefine the space syntax on any system of urban quantities (labels) and reproduce the results of the axial lines as a special case. As an example is discussed a possible application of the method to the urban noise analysis.

  18. Analysis of three and two coupled lines and design of a planar coupled-line bandpass filter and of baluns suitable for MIC and MMIC 

    E-Print Network [OSTI]

    Schwindt, Randall Scott

    1993-01-01

    Coupled line structures in inhomogeneous media are analyzed and applied in three circuits, a novel three-coupled line bandpass filter having sharp cutoff and two planar baluns composed of two sections of broadside-coupled lines. These are very...

  19. Profiled spectral lines generated in the field of Kerr superspinars

    SciTech Connect (OSTI)

    Schee, Jan; Stuchlík, Zdenek E-mail: zdenek.stuchlik@fpf.slu.cz

    2013-04-01

    String Theory suggests existence of primordial Kerr superspinars, extremely compact objects with external spacetime described by the Kerr naked singularity geometry. The primordial Kerr superspinars have to be converted to a near-extreme black hole due to accretion, but they could survive to the era of highly redshifted quasars. We study the shape of the profiled spectral lines generated by radiating rings or the innermost parts of Keplerian discs orbiting the Kerr superspinars. Influence of the superspinar surface location on the profiled lines is also considered. We demonstrate strong difference of the character of the profiled lines generated by radiating rings for all values of the superspinar spin and all values of the inclination angles of the observer when compared to those generated in the field of Kerr black holes. For small and mediate inclination angles there are large quantitative differences in the extension and position of the lines. For large inclination angles even strong qualitative difference appears as the profiled lines have a clear doubled character. The smaller, redshifted region of the profiled line is related to the photons reaching the regions near the superspinar surface. Strong differences are obtained also for profiled lines generated by the innermost parts of Keplerian discs especially in the shape of the line. The influence of the superspinar surface location is reflected in the intermediate parts of the the profiled lines. The line profiles can give a clear signature of the presence of a Kerr superspinar and in principle enable estimates of its surface location since the signatures of the superspinar surface location are of different character as those corresponding to the presence of the black hole horizon.

  20. Conservation and Global Climate Change

    E-Print Network [OSTI]

    Landweber, Laura

    V.6 Conservation and Global Climate Change Diane M. Debinski and Molly S. Cross OUTLINE 1. Introduction 2. How climate is changing 3. Environmental responses to climate change 4. Consequences of climate the coming decades will be preserving biodiversity in the face of climate change. It has become increasingly

  1. Potential Impacts of CLIMATE CHANGE

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Potential Impacts of CLIMATE CHANGE on U.S. Transportation Potential Impacts of CLIMATE CHANGE on U.S. Transportation TRANSPORTATION RESEARCH BOARD SPECIAL REPORT 290 #12;#12;Committee on Climate Change and U Washington, D.C. 2008 www.TRB.org Potential Impacts of CLIMATE CHANGE on U.S. Transportation TRANSPORTATION

  2. Abrupt Climate Change Inevitable Surprises

    E-Print Network [OSTI]

    Abrupt Climate Change Inevitable Surprises Committee on Abrupt Climate Change Ocean Studies Board of Congress Cataloging-in-Publication Data Abrupt climate change : inevitable surprises / Committee on Abrupt Climate Change, Ocean Studies Board, Polar Research Board, Board on Atmospheric Sciences and Climate

  3. Climate Change Proposed Scoping Plan

    E-Print Network [OSTI]

    Climate Change Proposed Scoping Plan a amework for change Prepared by the California Air Resources #12;CLIMATE CHANGE SCOPING PLAN State of California Air Resources Board Resolution 08-47 December 11 greenhouse gas (GHG) emissions that cause global warming; WHEREAS, the adverse impacts of climate change

  4. On-line Module Selection Student Guidelines On-line module selection opens on Wed 18th

    E-Print Network [OSTI]

    Harman, Neal.A.

    On-line Module Selection Student Guidelines Step 1 On-line module selection opens on Wed 18th March' followed by the tab `Next Year's Module Pre-selections'. Please note that any modules that are compulsory programme, you will need to submit the paper-work for this in-advance of selecting modules as your online

  5. On-line versus o-line vestibular-evoked control of goal-directed arm movements

    E-Print Network [OSTI]

    On-line versus o¡-line vestibular-evoked control of goal-directed arm movements Jean-directed arm movements towards memorized visual targets when the whole body is passively ro- tated during movement execution. Subjects succeededin compen- sating for current body rotation by regulating ongoing arm

  6. Near-coincident K-line and K-edge energies as ionization diagnostics for some high atomic number plasmas

    SciTech Connect (OSTI)

    Pereira, N. R.; Weber, B. V.; Phipps, D. G.; Schumer, J. W.; Seely, J. F.; Carroll, J. J.; Vanhoy, J. R.; Slabkowska, K.; Polasik, M.

    2012-10-15

    For some high atomic number atoms, the energy of the K-edge is tens of eVs higher than the K-line energy of another atom, so that a few eV increase in the line's energy results in a decreasing transmission of the x-ray through a filter of the matching material. The transmission of cold iridium's Asymptotically-Equal-To 63.287 keV K{alpha}{sub 2} line through a lutetium filter is 7% lower when emitted by ionized iridium, consistent with an energy increase of {Delta}{epsilon} Asymptotically-Equal-To 10{+-}1 eV associated with the ionization. Likewise, the transmission of the K{beta}{sub 1} line of ytterbium through a near-coincident K-edge filter changes depending on plasma parameters that should affect the ionization. Systematic exploration of filter-line pairs like these could become a unique tool for diagnostics of suitable high energy density plasmas.

  7. Progress through change

    SciTech Connect (OSTI)

    2006-11-15

    Merger, acquisitions and name changes - it happens in Germany as well. RAG has been undertaking some streamlining that has already impacted mining equipment and materials supply. It acquired the utilities firm E.ON's holding in Degussa on 1 July 2006. It is uncertain whether RAG may opt to sell DBT, one of the world's leading suppliers of underground mining equipment. DBT itself is undergoing some streamlining having sold DBT Maschinenfabrik Scharf and its subsidiaries to the Aurelius Group. The MAN TAKRAF Group has been sold to TAKRAAF Holding GmbH. These and other recent developments amongst Germany's mining equipment manufacturers suppliers are reported. 2 photos.

  8. Climate change cripples forests

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene NetworkNuclearDNP 20082 P r o j e c t DClimate Change

  9. Climate change cripples forests

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D BGene NetworkNuclearDNP 20082 P r o j e c t DClimate ChangeClimate

  10. On the Steady Nature of Line-Driven Disk Winds

    E-Print Network [OSTI]

    Nicolas A. Pereyra; Stanley P. Owocki; D. John Hillier; David A. Turnshek

    2003-11-11

    We perform an analytic investigation of the stability of line-driven disk winds, independent of hydrodynamic simulations. Our motive is to determine whether or not line-driven disk winds can account for the wide/broad UV resonance absorption lines seen in cataclysmic variables (CVs) and quasi-stellar objects (QSOs). In both CVs and QSOs observations generally indicate that the absorption arising in the outflowing winds has a steady velocity structure on time scales exceeding years (for CVs) and decades (for QSOs). However, published results from hydrodynamic simulations of line-driven disk winds are mixed, with some researchers claiming that the models are inherently unsteady, while other models produce steady winds. The analytic investigation presented here shows that if the accretion disk is steady, then the line-driven disk wind emanating from it can also be steady. In particular, we show that a gravitational force initially increasing along the wind streamline, which is characteristic of disk winds, does not imply an unsteady wind. The steady nature of line-driven disk winds is consistent with the 1D streamline disk-wind models of Murray and collaborators and the 2.5D time-dependent models of Pereyra and collaborators. This paper emphasizes the underlying physics behind the steady nature of line-driven disk winds using mathematically simple models that mimic the disk environment

  11. Theoretical X-ray Line Profiles from Colliding Wind Binaries

    E-Print Network [OSTI]

    D. B. Henley; I. R. Stevens; J. M. Pittard

    2003-06-23

    We present theoretical X-ray line profiles from a range of model colliding wind systems. In particular, we investigate the effects of varying the stellar mass-loss rates, the wind speeds, and the viewing orientation. We find that a wide range of theoretical line profile shapes is possible, varying with orbital inclination and phase. At or near conjunction, the lines have approximately Gaussian profiles, with small widths (HWHM ~ 0.1 v_\\infty) and definite blue- or redshifts (depending on whether the star with the weaker wind is in front or behind). When the system is viewed at quadrature, the lines are generally much broader (HWHM ~ v_\\infty), flat-topped and unshifted. Local absorption can have a major effect on the observed profiles - in systems with mass-loss rates of a few times 10^{-6} Msol/yr the lower energy lines (E wind of the primary. The orbital variation of the line widths and shifts is reduced in a low inclination binary. The extreme case is a binary with i = 0 degrees, for which we would expect no line profile variation.

  12. Stainless steel submerged arc weld fusion line toughness

    SciTech Connect (OSTI)

    Rosenfield, A.R.; Held, P.R.; Wilkowski, G.M. [Battelle, Columbus, OH (United States)

    1995-04-01

    This effort evaluated the fracture toughness of austenitic steel submerged-arc weld (SAW) fusion lines. The incentive was to explain why cracks grow into the fusion line in many pipe tests conducted with cracks initially centered in SAWS. The concern was that the fusion line may have a lower toughness than the SAW. It was found that the fusion line, Ji. was greater than the SAW toughness but much less than the base metal. Of greater importance may be that the crack growth resistance (JD-R) of the fusion line appeared to reach a steady-state value, while the SAW had a continually increasing JD-R curve. This explains why the cracks eventually turn to the fusion line in the pipe experiments. A method of incorporating these results would be to use the weld metal J-R curve up to the fusion-line steady-state J value. These results may be more important to LBB analyses than the ASME flaw evaluation procedures, since there is more crack growth with through-wall cracks in LBB analyses than for surface cracks in pipe flaw evaluations.

  13. Irradiance or luminosity changes?

    E-Print Network [OSTI]

    Sabatino Sofia; Linghuai H. Li

    2000-10-20

    Whereas a variation of the solar luminosity, L, will inevitably cause a similar change of the total solar irradiance, S, the opposite is not true. In fact, the bulk of the days to months variations of S can be explained entirely in terms of the passage of active regions across the solar disk. In this case, L remains essentially unchanged. For the total irradiance variation observed over the solar cycle, the issue is more uncertain. One view explains this modulation primarily as a combined action of active regions and magnetic network. These components would be superposed to an otherwise unchanging photosphere. the other view suggests that the activity cycle modulation of S is primarily produced by a variation of L (both in terms of R and T_{eff}) caused by structural reajustments of the interior of the Sun induced by a changing magnetic field. We will present evidence in support of this second interpretation, and a model for it. We will also present the S variations over the last 5 centuries implied by our model.

  14. Quantum metamaterials: Electromagnetic waves in a Josephson qubit line

    E-Print Network [OSTI]

    A. L. Rakhmanov; A. M. Zagoskin; Sergey Savel'ev; Franco Nori

    2007-12-19

    We consider the propagation of a classical electromagnetic wave through a transmission line, formed by identical superconducting charge qubits inside a superconducting resonator. Since the qubits can be in a coherent superposition of quantum states, we show that such a system demonstrates interesting new effects, such as a ``breathing'' photonic crystal with an oscillating bandgap, and a ``quantum Archimedean screw'' that transports, at an arbitrary controlled velocity, Josephson plasma waves through the transmission line. The key ingredient of these effects is that the optical properties of the Josephson transmission line are controlled by the quantum coherent state of the qubits.

  15. Deficiency of Broad Line AGNs in Compact Groups of Galaxies

    E-Print Network [OSTI]

    M. A. Martinez; A. del Olmo; R. Coziol; P. Focardi

    2008-03-25

    Based on a new survey of AGN activity in Compact Groups of Galaxies, we report a remarkable deficiency of Broad Line AGNs as compared to Narrow Line AGNs. The cause of such deficiency could be related to the average low luminosity of AGNs in CGs: $10^{39}$ erg s$^{-1}$. This result may imply lower accretion rates in CG AGNs, making Broad Line Regions (BLR) undetectable, or may indicate a genuine absence of BLRs. Both phenomena are consistent with gas stripping through tidal interaction and dry mergers.

  16. Institutional Change Basics for Sustainability | Department of...

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

    Institutional Change Basics for Sustainability Institutional Change Basics for Sustainability Institutional change integrates technology, policy, and behavior to make new...

  17. Resources on Institutional Change for Sustainability | Department...

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

    Institutional Change Resources on Institutional Change for Sustainability Resources on Institutional Change for Sustainability The Federal Energy Management Program (FEMP)...

  18. Cool with Change: Young People and Family Change 

    E-Print Network [OSTI]

    Highet, Gill; Jamieson, Lynn

    Cool with Change breaks new grounds by combining in-depth research of young people’s experience of family change in Scotland, reflection by service providers on the implications for their services and consultation with ...

  19. Climate Change: Conflict, Security and Vulnerability Professor of Climate Change

    E-Print Network [OSTI]

    Hulme, Mike

    Climate Change: Conflict, Security and Vulnerability Mike Hulme Professor of Climate Change Science, Society and Sustainability Group School of Environmental Sciences Rethinking Climate Change, Conflict and Security University of Sussex, 18-19 October 2012 1 #12;Weather and climate ... vulnerability and security

  20. Climate Systems and Climate Change Is Climate Change Real?

    E-Print Network [OSTI]

    Pan, Feifei

    Chapter 10 Climate Systems and Climate Change #12;Is Climate Change Real? 1980 1898 2005 2003 #12;Arctic Sea Ice Changes #12;Observed Global Surface Air Temperature #12;! Current climate: weather station data, remote sensing data, numerical modeling using General Circulation Models (GCM) ! Past climate

  1. DomainSpecific Runtime Variability In Product Line Architectures

    E-Print Network [OSTI]

    Zdun, Uwe

    of a set of products within a specific organization. Commonalities can be implemented in prefabricated from a Multimedia Home Platform product line: end­user personalization across different new media

  2. Domain-Specific Runtime Variability In Product Line Architectures

    E-Print Network [OSTI]

    Zdun, Uwe

    of a set of products within a specific organization. Commonalities can be implemented in prefabricated from a Multimedia Home Platform product line: end-user personalization across different new media

  3. Guide to good practices for line and training manager activities

    SciTech Connect (OSTI)

    1998-06-01

    The purpose of this guide is to provide direction for line and training managers in carrying out their responsibilities for training and qualifying personnel and to verify that existing training activities are effective.

  4. A mycological assessment of highly digestible protein sorghum lines

    E-Print Network [OSTI]

    Portillo, Ostilio Rolando

    2009-05-15

    The improved protein digestibility of the highly digestible protein (HD) sorghum lines is attributed to the invaginated shape of the endosperm protein bodies that provides better proteolytic access to the kafirins containing protein bodies. Recent...

  5. Multilevel Analysis in R with a Broken-line Example

    E-Print Network [OSTI]

    Leeuw, Jan de

    2008-01-01

    conduction velocity",col="RED ",lwd=3,main="FIML") for (i ini]+2*vml[i]),col="GREEN" ,lwd=3) ymllwd=3) for (i in 1:7) lines(c(

  6. Multilevel Analysis in R with a Broken-line Example

    E-Print Network [OSTI]

    Jan de Leeuw

    2011-01-01

    conduction velocity",col="RED ",lwd=3,main="FIML") for (i ini]+2*vml[i]),col="GREEN" ,lwd=3) ymllwd=3) for (i in 1:7) lines(c(

  7. Emission Lines and the Spectral Energy Distributions of Quasars

    E-Print Network [OSTI]

    B. J. Wilkes; P. J. Green; S. Mathur; J. C. McDowell

    1996-08-05

    Many years of study have failed to conclusively establish relations between a quasar's spectral energy distribution (SED) and the emission lines it is thought to produce. This is at least partially due to the lack of well-observed SEDs. We present initial results from a line--SED study for a sample of 43 quasars and active galaxies for which we have optical and ultra-violet spectra and far-infrared--X-ray SEDs. We present the results of tests for correlations between line equivalent widths and SED luminosity and slope parameters and compare these results to those from earlier studies. We find that the Baldwin effect is weaker when the luminosity is defined close to the ionising continuum of that line and conclude that the detailed SED is likely to be important in making further progress.

  8. EIS-0106: Great Falls-Conrad Transmission Line Project, Montana

    Broader source: Energy.gov [DOE]

    The Western Area Power Administration prepared this EIS to evaluate the environmental impacts of the construction and operation of a 230-kilovolt transmission line from Great Falls, Montana, to Conrad, Montana.

  9. Request for Proposals for New or Upgraded Transmission Line Projects...

    Office of Environmental Management (EM)

    Proposals for New or Upgraded Transmission Line Projects Under Section 1222 of the Energy Policy Act of 2005: Federal Register Notice Volume 75, No. 111 - Jun 10, 2012 Request for...

  10. Observation of interference fringes in Autler-Townes line shapes 

    E-Print Network [OSTI]

    Wilkinson, S. R.; Smith, A. V.; Scully, Marlan O.; Fry, Edward

    1996-01-01

    We observe Ramsey fringes in the absorption line shape for a weak optical field probing the transition between an unperturbed quantum state and one that is dynamically Stark shifted by a strong pump field....

  11. Single transmission line interrogated multiple channel data acquisition system

    DOE Patents [OSTI]

    Fasching, George E. (Morgantown, WV); Keech, Jr., Thomas W. (Morgantown, WV)

    1980-01-01

    A single transmission line interrogated multiple channel data acquisition system is provided in which a plurality of remote station/sensor circuits each monitors a specific process variable and each transmits measurement values over a single transmission line to a master interrogating station when addressed by said master interrogating station. Typically, as many as 330 remote stations may be parallel connected to the transmission line which may exceed 7,000 feet. The interrogation rate is typically 330 stations/second. The master interrogating station samples each station according to a shared, charging transmit-receive cycle. All remote station address signals, all data signals from the remote stations/sensors and all power for all of the remote station/sensors are transmitted via a single continuous terminated coaxial cable. A means is provided for periodically and remotely calibrating all remote sensors for zero and span. A provision is available to remotely disconnect any selected sensor station from the main transmission line.

  12. Evaluation of short-day onion doubled haploid lines 

    E-Print Network [OSTI]

    Walker, Ryan Lee

    2009-05-15

    Molecular marker analysis of seven putative onion (Allium cepa) doubled haploid (DH) lines developed at Texas A&M University was conducted to verify genetic homozygosity. Analysis was also conducted on five equivalent ...

  13. Federal Line Management Oversight of Department of Energy Nuclear Facilities

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

    2013-04-04

    The Guide was developed in support of DOE O 226.1B to provide guidance that may be useful to DOE line management organizations in meeting the provisions of that order when applied to nuclear facilities.

  14. Wireless Sensor Network for Electric Transmission Line Monitoring

    SciTech Connect (OSTI)

    Alphenaar, Bruce

    2009-06-30

    Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

  15. Microsoft Word - News Release -- Annual Reports now on line 2...

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

    20, 2015 CONTACT: Mike Hansen, BPA 503-230-4328 or 503-230-5131 All 77 of BPA's annual reports now on line Portland, Ore. - The Bonneville Power Administration now has all 77 of...

  16. Oxford Colleges On-line Reports for Tutorials

    E-Print Network [OSTI]

    Wallace, Mark

    OxCORT Oxford Colleges On-line Reports for Tutorials Tutorial Office Role Version 4.4 BSP Training Overview of Tutorial reports.................................................................11 Overview of Revision Class reports.....................................................12 Overview of payments

  17. Oxford Colleges On-line Reports for Tutorials

    E-Print Network [OSTI]

    Wallace, Mark

    OxCORT Oxford Colleges On-line Reports for Tutorials Organising or Personal Tutor Role Version 4 of Tutorial reports...................................................................8 Overview of Revision Class reports.......................................................8 Overview of payments

  18. Oxford Colleges On-line Reports for Tutorials

    E-Print Network [OSTI]

    Wallace, Mark

    OxCORT Oxford Colleges On-line Reports for Tutorials Senior Tutor Role Version 4.4 BSP Training of Tutorial reports...................................................................8 Overview of Revision Class reports.......................................................8 Overview of payments

  19. Oxford Colleges On-line Reports for Tutorials

    E-Print Network [OSTI]

    Wallace, Mark

    OxCORT Oxford Colleges On-line Reports for Tutorials Tutor Role Version 4.5 BSP Training Team Overview of Tutorial reports...................................................................8 Overview of Revision Class reports.......................................................8 Report states

  20. On-line hydraulic state prediction for water distribution systems

    E-Print Network [OSTI]

    Whittle, Andrew

    This paper describes and demonstrates a method for on?line hydraulic state prediction in urban water networks. The proposed method uses a Predictor?Corrector (PC) approach in which a statistical data?driven algorithm is ...

  1. Soliton communication lines based on spectrally efficient modulation formats

    SciTech Connect (OSTI)

    Yushko, O V; Redyuk, A A

    2014-06-30

    We report the results of mathematical modelling of optical-signal propagation in soliton fibre-optic communication lines (FOCLs) based on spectrally efficient signal modulation formats. We have studied the influence of spontaneous emission noise, nonlinear distortions and FOCL length on the data transmission quality. We have compared the characteristics of a received optical signal for soliton and conventional dispersion compensating FOCLs. It is shown that in the presence of strong nonlinearity long-haul soliton FOCLs provide a higher data transmission performance, as well as allow higher order modulation formats to be used as compared to conventional communication lines. In the context of a coherent data transmission, soliton FOCLs allow the use of phase modulation with many levels, thereby increasing the spectral efficiency of the communication line. (optical communication lines)

  2. Principal stress line computation for discrete topology design

    E-Print Network [OSTI]

    Tam, Kam-Ming Mark

    2015-01-01

    Principal stress-lines are pairs of orthogonal curves that indicate trajectories of internal forces. Subsequently, these curves idealize paths of material continuity, and naturally encode the optimal topology for any ...

  3. Comparison of Tamspan 90 peanut component lines for aflatoxin production 

    E-Print Network [OSTI]

    Lopez, Yolanda

    1994-01-01

    The 38 lines that comprise 'Tamspan 90' peanut were studied for differential Aspet*llu,s flavus Links and A. parasiticus Spear growth and aflatoxin production under field and laboratory conditions. Required environmental conditions of temperature...

  4. A framework for on-line simulation systems 

    E-Print Network [OSTI]

    Drake, Glenn Richardson

    1996-01-01

    Simulation has traditionally been used for off-line planning and design. The advent of computer integrated manufacturing and flexible manufacturing systems has increased interest in shop floor control systems that use ...

  5. Projective lines over one-dimensional semilocal domains

    E-Print Network [OSTI]

    2013-01-21

    contracts to a maximal ideal in R[y] or in R[y?1] implies that R is Henselian. Moti- vated by this question, we consider the structure of the projective line Proj(R[s, ...

  6. CRAD, NNSA- Evaluation Site Office Line Oversight Programs

    Broader source: Energy.gov [DOE]

    CRAD for Evaluation Site Office Line Oversight Programs. Criteria Review and Approach Documents (CRADs) that can be used to conduct a well-organized and thorough assessment of elements of safety and health programs.

  7. A STUDY OF ION LINE BROADENING IN THE TORMAC DISCHARGE.

    E-Print Network [OSTI]

    Shaw, Robert Stephen

    2010-01-01

    of the main confinement magnetic field is not maintained fordrag. Magnetic probes indicate that the confinement fieldmagnetic field line configurations, such as the magnetic mirror, do not have this B limitation. However, particle confinement

  8. COLLECTED TRANSMISSION-LINE IDENTITIES Matthew A. Morgan

    E-Print Network [OSTI]

    Groppi, Christopher

    -line identities are a useful tool in the early stages of passive network design, and many such identities are well, and Coupling Structures, Artech House, Norwood MA. 1980. [4] R. Wenzel, "Exact design of TEM microwave networks

  9. Line and Net Pattern Segmentation Using Shape Modeling Adam Huanga

    E-Print Network [OSTI]

    : Image processing, image enhancement, image segmentation, feature extraction, matched filter, crest lines of blood vessels in retinal images: 1) Blood vessels usually have small curvatures and can be approximated

  10. Internal-integral sodium return line for sodium heat engine

    DOE Patents [OSTI]

    Hunt, Thomas K. (Ann Arbor, MI)

    1985-01-01

    A thermoelectric generator device which converts heat energy to electrical energy. An alkali metal is used with a solid electrolyte and a portion of the return line for the alkali metal is located within the generator vacuum space.

  11. Federal Line Management Oversight of Department of Energy Nuclear Facilities

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

    2011-04-25

    The purpose of this Guide is to provide U.S. Department of Energy (DOE) line management with guidance that may be useful to them in effectively and efficiently implementing the requirements of DOE O 226.1B, Implementation of Department of Energy Oversight Policy, date April 25, 2011, as applied to Federal line management of hazard category 1, 2, and 3 nuclear facilities.

  12. LLNL line-item construction projects Master Site Plan

    SciTech Connect (OSTI)

    1996-04-15

    This interim submittal is an updated 1996 overview of the Master Plan based on the 1995 LLNL Site Development Plan, illustrating the future land use considerations, and the locations of proposed facilities as documented through the line item development process and keyed to the summary table. The following components in addition to the line-item proposals remain key elements in the implementation strategy of the Master Plan: personnel migration, revitalization, space reduction, classified core contraction, utility systems, and environmental restoration.

  13. Volume painting: incorporating volumetric rendering with line integral convolution (LIC) 

    E-Print Network [OSTI]

    Lee, Jaewook

    2005-11-01

    -1 VOLUME PAINTING: INCORPORATING VOLUMETRIC RENDERING WITH LINE INTEGRAL CONVOLUTION (LIC) A Thesis by JAEWOOK LEE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... Painting: Incorporating Volumetric Rendering with Line Integral Convolution (LIC). (August 2005) Jaewook Lee, B.F.A., Pusan National University Chair of Advisory Committee: Dr. Ergun Akleman This thesis presents an expressive (non-photorealistic) rendering...

  14. The 2mrad Crossing Angle Interaction Region and Extraction Line

    SciTech Connect (OSTI)

    Appleby, R.; U., Manchester; Angal-Kalinin, D.; Dadoun, O.; Bambade, P.; Parker, B.; Keller, L.; Moffeit, K.; Nosochkov, Y.; Seryi, A.; Spencer, C.; Carter, J.; Royal Holloway, U.of London; Napoly, O.; /DAPNIA, Saclay

    2006-07-12

    A complete optics design for the 2mrad crossing angle interaction region and extraction line was presented at Snowmass 2005. Since this time, the design task force has been working on developing and improving the performance of the extraction line. The work has focused on optimizing the final doublet parameters and on reducing the power losses resulting from the disrupted beam transport. In this paper, the most recent status of the 2mrad layout and the corresponding performance are presented.

  15. Corrugated outer sheath gas-insulated transmission line

    DOE Patents [OSTI]

    Kemeny, George A. (Pittsburgh, PA); Cookson, Alan H. (Churchill Boro, PA)

    1981-01-01

    A gas-insulated transmission line includes two transmission line sections each of which are formed of a corrugated outer housing enclosing an inner high-voltage conductor disposed therein, with insulating support means supporting the inner conductor within the outer housing and an insulating gas providing electrical insulation therebetween. The outer housings in each section have smooth end sections at the longitudinal ends thereof which are joined together by joining means which provide for a sealing fixed joint.

  16. Gas insulated transmission line having tapered particle trapping ring

    DOE Patents [OSTI]

    Cookson, Alan H. (Pittsburgh, PA)

    1982-01-01

    A gas-insulated transmission line includes an outer sheath, an inner conductor, insulating supports and an insulating gas. A particle-trapping ring is secured to each insulating support, and it is comprised of a central portion and two tapered end portions. The ends of the particle trapping ring have a smaller diameter than the central portion of the ring, so as to enable the use of the particle trapping ring in a curved transmission line.

  17. Determination of age in forensic dentistry from cemental incremental lines 

    E-Print Network [OSTI]

    Sousa, Eliane Marques Duarte de

    1987-01-01

    ) John E. Martin (Member) H. Del Var Petersen (Member) Gerald R. Bratton (Head of Department) December lg87 ABSTNACT Determination of Age in Forensic Dentistry from Cemental Incremental Lines. (December 1987) Eliane Marques Duarte de Sousa, D. D...DETERMINATION OF AGE IN FORENSIC DENTISTRY FROM CEMENTAL INCREMENTAL LINES Thes' s by ELIANE MARJUES DLARTE DF SOUSA Submitted to the Graduate College of Texas A?M Univer ity ' n r. srt' al f"lf' llment of the requirements for the degree...

  18. The Broad Line Region of AGN: Kinematics and Physics

    E-Print Network [OSTI]

    L. C. Popovic

    2006-12-23

    In this paper a discussion of kinematics and physics of the Broad Line Region (BLR) is given. The possible physical conditions in the BLR and problems in determination of the physical parameters (electron temperature and density) are considered. Moreover, one analyses the geometry of the BLR and the probability that (at least) a fraction of the radiation in the Broad Emission Lines (BELs) originates from a relativistic accretion disk.

  19. Massachusetts Takes On Climate Change

    E-Print Network [OSTI]

    Kimmell, Ken; Laurie, Burt

    2009-01-01

    to promote new technologies to fight climate change as theON CLIMATE CHANGE dard is a market-based, technology-neutraland technologies. 9. Facilities will calculate emissions using The Climate

  20. X-ray Reflection from Inhomogeneous Accretion Disks: II. Emission Line Variability and Implications for Reverberation Mapping

    E-Print Network [OSTI]

    D. R. Ballantyne; N. J. Turner; A. J. Young

    2004-10-08

    One of the principal scientific objectives of the upcoming Constellation-X mission is to attempt to map the inner regions of accretion disks around black holes in Seyfert galaxies by reverberation mapping of the Fe K fluorescence line. This area of the disk is likely radiation pressure dominated and subject to various dynamical instabilities. Here, we show that density inhomogeneities in the disk atmosphere resulting from the photon bubble instability (PBI) can cause rapid changes in the X-ray reflection features, even when the illuminating flux is constant. Using a simulation of the development of the PBI, we find that, for the disk parameters chosen, the Fe K and O VIII Ly\\alpha lines vary on timescales as short as a few hundredths of an orbital time. In response to the changes in accretion disk structure, the Fe K equivalent width (EW) shows variations as large as ~100 eV. The magnitude and direction (positive or negative) of the changes depends on the ionization state of the atmosphere. The largest changes are found when the disk is moderately ionized. The O VIII EW varies by tens of eV, as well as exhibiting plenty of rapid, low-amplitude changes. This effect provides a natural explanation for some observed instances of short timescale Fe K variability which was uncorrelated with the continuum (e.g., Mrk 841). New predictions for Fe K reverberation mapping should be made which include the effects of this accretion disk driven line variability and a variable ionization state. Reflection spectra averaged over the evolution of the instability are well fit by constant density models in the 2-10 keV region.

  1. EIS-0442: Reauthorization of Permits, Maintenance, and Vegetation Management on Western Area Power Administration Transmission Lines on Forest Service Lands, Colorado, Nebraska, and Utah

    Broader source: Energy.gov [DOE]

    This EIS is being prepared jointly by DOE’s Western Area Power Administration and the U.S. Forest Service. The EIS evaluates the potential environmental impacts of Western’s proposed changes to vegetation management along its transmission line rights-of-way on National Forest System lands in Colorado, Utah, and Nebraska.

  2. Ultraviolet Diagnostics for the Emission Line Gas in Active Galaxies

    E-Print Network [OSTI]

    M. G. Allen; M. A. Dopita; Z. I. Tsvetanov

    1998-01-06

    Optical diagnostic diagrams are frequently ambiguous as a test of the photoionization or fast shock models of the narrow line regions of active galaxies. Here, we present a set of UV line ratio diagrams which can discriminate between pure shock and photoionization modes of excitation, and to some extent, also discriminate shocks with ionized precursors from photoionization. These diagrams use relatively bright emission lines and reddening insensitive ratios and provide a practical observational test for separating the excitation mechanisms of the narrow line regions of active galaxies. The most useful diagrams are those involving the various ionization stages of Carbon, [OIII]5007/H-beta vs. CIV 1550/ HeII 1640 and the purely UV ratio pair CII] 2326 / CIII] 1909 vs. CIV 1550 / CIII]909. Temperature sensitive FUV lines CIII 977 and NIII 991 also provide good discriminants. The models are compared to observations of nearby AGN, and also to high redshift objects where the UV lines are shifted into the optical.

  3. Solving radiative transfer with line overlaps using Gauss Seidel algorithms

    E-Print Network [OSTI]

    F. Daniel; J. Cernicharo

    2008-07-11

    The improvement in observational facilities requires refining the modelling of the geometrical structures of astrophysical objects. Nevertheless, for complex problems such as line overlap in molecules showing hyperfine structure, a detailed analysis still requires a large amount of computing time and thus, misinterpretation cannot be dismissed due to an undersampling of the whole space of parameters. We extend the discussion of the implementation of the Gauss--Seidel algorithm in spherical geometry and include the case of hyperfine line overlap. We first review the basics of the short characteristics method that is used to solve the radiative transfer equations. Details are given on the determination of the Lambda operator in spherical geometry. The Gauss--Seidel algorithm is then described and, by analogy to the plan--parallel case, we see how to introduce it in spherical geometry. Doing so requires some approximations in order to keep the algorithm competitive. Finally, line overlap effects are included. The convergence speed of the algorithm is compared to the usual Jacobi iterative schemes. The gain in the number of iterations is typically factors of 2 and 4 for the two implementations made of the Gauss--Seidel algorithm. This is obtained despite the introduction of approximations in the algorithm. A comparison of results obtained with and without line overlaps for N2H+, HCN, and HNC shows that the J=3-2 line intensities are significantly underestimated in models where line overlap is neglected.

  4. Optical emission line monitor with background observation and cancellation

    DOE Patents [OSTI]

    Goff, David R. (Star City, WV); Notestein, John E. (Morgantown, WV)

    1986-01-01

    A fiber optics based optical emission line monitoring system is provided in which selected spectral emission lines, such as the sodium D-line emission in coal combustion, may be detected in the presence of interferring background or blackbody radiation with emissions much greater in intensity than that of the emission line being detected. A bifurcated fiber optic light guide is adapted at the end of one branch to view the combustion light which is guided to a first bandpass filter, adapted to the common trunk end of the fiber. A portion of the light is reflected back through the common trunk portion of the fiber to a second bandpass filter adapted to the end of the other branch of the fiber. The first filter bandpass is centered at a wavelength corresponding to the emission line to be detected with a bandwidth of about three nanometers (nm). The second filter is centered at the same wavelength but having a width of about 10 nm. First and second light detectors are located to view the light passing through the first and second filters respectively. Thus, the second detector is blind to the light corresponding to the emission line of interest detected by the first detector and the difference between the two detector outputs is uniquely indicative of the intensity of only the combustion flame emission of interest. This instrument can reduce the effects of interferring blackbody radiation by greater than 20 dB.

  5. Optical emission line monitor with background observation and cancellation

    DOE Patents [OSTI]

    Goff, D.R.; Notestein, J.E.

    1985-01-04

    A fiber optics based optical emission line monitoring system is provided in which selected spectral emission lines, such as the sodium D-line emission in coal combustion, may be detected in the presence of interferring background or blackbody radiation with emissions much greater in intensity than that of the emission line being detected. A bifurcated fiber optic light guide is adapted at the end of one branch to view the combustion light which is guided to a first bandpass filter, adapted to the common trunk end of the fiber. A portion of the light is reflected back through the common trunk portion of the fiber to a second bandpass filter adapted to the end of the other branch of the fiber. The first filter bandpass is centered at a wavelength corresponding to the emission line to be detected with a bandwidth of about three nanometers (nm). The second filter is centered at the same wavelength but having a width of about 10 nm. First and second light detectors are located to view the light passing through the first and second filters respectively. Thus, the second detector is blind to the light corresponding to the emission line of interest detected by the first detector and the difference between the two detector outputs is uniquely indicative of the intensity of only the combustion flame emission of interest. This instrument can reduce the effects of interfering blackbody radiation by greater than 20 dB.

  6. The fine structure line deficit in S 140

    E-Print Network [OSTI]

    Ossenkopf, Volker; Okada, Yoko; Mookerjea, Bhaswati; van der Tak, Floris F S; Simon, Robert; Pütz, Patrick; Güsten, Rolf

    2015-01-01

    We try to understand the gas heating and cooling in the S 140 star forming region by spatially and spectrally resolving the distribution of the main cooling lines with GREAT/SOFIA. We mapped the fine structure lines of [OI] (63 {\\mu}m) and [CII] (158 {\\mu}m) and the rotational transitions of CO 13-12 and 16-15 with GREAT/SOFIA and analyzed the spatial and velocity structure to assign the emission to individual heating sources. We measure the optical depth of the [CII] line and perform radiative transfer computations for all observed transitions. By comparing the line intensities with the far-infrared continuum we can assess the total cooling budget and measure the gas heating efficiency. The main emission of fine structure lines in S 140 stems from a 8.3'' region close to the infrared source IRS 2 that is not prominent at any other wavelength. It can be explained by a photon-dominated region (PDR) structure around the embedded cluster if we assume that the [OI] line intensity is reduced by a factor seven due ...

  7. Migration and Global Environmental Change

    E-Print Network [OSTI]

    Migration and Global Environmental Change Future Challenges and Opportunities FINAL PROJECT REPORT and adaptation, and also developmental and humanitarian agendas. Migration and Global Environmental Change Future Environmental Change (2011) Final Project Report The Government Office for Science, London #12;3 A range

  8. Climate change & street trees project

    E-Print Network [OSTI]

    Climate change & street trees project Social Research Report The social and cultural values Group as part of the Climate change and street trees project, funded by the Forestry Commission with changing socio-economics and/or demographics, but little evidence exists relating

  9. CLIMATE RISK AND CLIMATE CHANGE

    E-Print Network [OSTI]

    Smerdon, Jason E.

    CLIMATE RISK AND CLIMATE CHANGE Scenarios of what the climate will be like 50 to 100 years from now associated with climate change demand these efforts continue. However, the long time horizons have led many decision makers to regard climate change as a problem of the distant future. But is it? I n many regions

  10. CLIMATE CHANGE A RISK ASSESSMENT

    E-Print Network [OSTI]

    Cambridge, University of

    CLIMATE CHANGE A RISK ASSESSMENT David King, Daniel Schrag, Zhou Dadi, Qi Ye and Arunabha Ghosh/JAROS, and U.S./JapanASTER Science Team. China National Expert Committee on Climate Change Hosts of the project for Climate Change, and was formerly the UK Government's Chief Scientific Adviser. He has authored over 500

  11. 4, 28752899, 2007 Climate change

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    HESSD 4, 2875­2899, 2007 Climate change impact and model inaccuracy P. Droogers et al. Title Page are under open-access review for the journal Hydrology and Earth System Sciences Climate change impact­2899, 2007 Climate change impact and model inaccuracy P. Droogers et al. Title Page Abstract Introduction

  12. Understanding and Attributing Climate Change

    E-Print Network [OSTI]

    Box, Jason E.

    9 Understanding and Attributing Climate Change Coordinating Lead Authors: Gabriele C. Hegerl (USA. Nicholls, J.E. Penner and P.A. Stott, 2007: Under- standing and Attributing Climate Change. In: Climate of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M

  13. Biological Impacts of Climate Change

    E-Print Network [OSTI]

    McCarty, John P.

    Biological Impacts of Climate Change John P McCarty, University of Nebraska at Omaha, Omaha, NE and reproduction depend on how well adapted individuals are to local climate patterns. Climate change can disrupt subsequent impacts on populations or species' distributions across geographic regions. Climate change may

  14. Climate Change Action Plan Report

    E-Print Network [OSTI]

    Hansen, Andrew J.

    Climate Change Action Plan Report Intermountain Region 2013 National Park Service Resource Stewardship and Science Landscape Conservation and Climate Change Division #12;About this Report Each National Park Service is responding to the challenge of climate change; and (2) raise awareness among NPS

  15. CLIMATE CHANGE IMPACTS, VULNERABILITIES, AND

    E-Print Network [OSTI]

    CLIMATE CHANGE IMPACTS, VULNERABILITIES, AND ADAPTATION IN THE SAN FRANCISCO BAY AREA Commission's California Climate Change Center JULY 2012 CEC5002012071 Prepared for: California Energy, as well as projections of future changes in climate based on modeling studies using various plausible

  16. Climate Change and Runoff Management

    E-Print Network [OSTI]

    Sheridan, Jennifer

    Climate Change and Runoff Management in Wisconsin Fox-Wolf Watershed Alliance May 10, 2011 David S of Engineering #12;Overview · Understanding climate change · Wisconsin's changing climate · Expected impacts · Adaptation strategies #12;What is climate? "Climate is properly the long average of weather in a single place

  17. ESTIMATING RISK TO CALIFORNIA ENERGY INFRASTRUCTURE FROM PROJECTED CLIMATE CHANGE

    E-Print Network [OSTI]

    Sathaye, Jayant

    2011-01-01

    during heat spells; wildfires near transmission lines; seaduring heat spells; wildfires near transmission lines; seaduring heat spells; wildfires near transmission lines; and

  18. DETERMINING INTERSTELLAR CARBON ABUNDANCES FROM STRONG-LINE TRANSITIONS

    SciTech Connect (OSTI)

    Sofia, U. J. [Physics Department, American University, Washington, DC 20016 (United States); Parvathi, V. S.; Babu, B. R. S. [Physics Department, University of Calicut, Kerala (India); Murthy, J. [Indian Institute of Astrophysics, Kormangala, Bengaluru (India)

    2011-01-15

    Carbon is arguably the most important element in the interstellar medium, yet its abundance in gas and dust is poorly understood due to a paucity of data. We explore the possibility of substantially increasing our knowledge of interstellar carbon by applying and assessing a new method for determining the column density of the dominant ion of interstellar carbon in diffuse neutral lines of sight. The method relies on profile fitting of the strong transition of C II at 1334 A in spectra continuum normalized with stellar models. We apply our method to six sight lines for which the carbon abundance has previously been determined with a weak intersystem absorption transition. Our strong-line method consistently shows a significantly lower gas-phase C abundance than the measurements from the weak lines. This result implies that more carbon could reside in dust than was previously thought. This has implications for dust models, which often suffer from a lack of sufficient carbon to plausibly explain extinction. There is no immediately clear explanation for the difference found between the strong- and weak-line C II determinations, but there are indications that the results from the method presented here have advantages over the weak-line column densities. If this is the case, then the reported oscillator strength for the C II transition at 2325 A may be too small. Our findings further suggest that damping wings modeled with a single absorption component may not produce accurate abundances. This problem could affect a large number of H I abundances determined through absorption line analysis that are reported in the literature.

  19. The symmetric quartic map for trajectories of magnetic field lines in elongated divertor tokamak plasmas

    SciTech Connect (OSTI)

    Jones, Morgin; Wadi, Hasina; Ali, Halima; Punjabi, Alkesh [Department of Mathematics, Hampton University, Hampton, Virginia 23668 (United States)

    2009-04-15

    The coordinates of the area-preserving map equations for integration of magnetic field line trajectories in divertor tokamaks can be any coordinates for which a transformation to ({psi}{sub t},{theta},{phi}) coordinates exists [A. Punjabi, H. Ali, T. Evans, and A. Boozer, Phys. Lett. A 364, 140 (2007)]. {psi}{sub t} is toroidal magnetic flux, {theta} is poloidal angle, and {phi} is toroidal angle. This freedom is exploited to construct the symmetric quartic map such that the only parameter that determines magnetic geometry is the elongation of the separatrix surface. The poloidal flux inside the separatrix, the safety factor as a function of normalized minor radius, and the magnetic perturbation from the symplectic discretization are all held constant, and only the elongation is {kappa} varied. The width of stochastic layer, the area, and the fractal dimension of the magnetic footprint and the average radial diffusion coefficient of magnetic field lines from the stochastic layer; and how these quantities scale with {kappa} is calculated. The symmetric quartic map gives the correct scalings which are consistent with the scalings of coordinates with {kappa}. The effects of m=1, n={+-}1 internal perturbation with the amplitude that is expected to occur in tokamaks are calculated by adding a term [H. Ali, A. Punjabi, A. H. Boozer, and T. Evans, Phys. Plasmas 11, 1908 (2004)] to the symmetric quartic map. In this case, the width of stochastic layer scales as 0.35 power of {kappa}. The area of the footprint is roughly constant. The average radial diffusion coefficient of field lines near the X-point scales linearly with {kappa}. The low mn perturbation changes the quasisymmetric structure of the footprint, and reorganizes it into a single, large scale, asymmetric structure. The symmetric quartic map is combined with the dipole map [A. Punjabi, H. Ali, and A. H. Boozer, Phys. Plasmas 10, 3992 (2003)] to calculate the effects of magnetic perturbation from a current carrying coil. The coil position and coil current coil are constant. The dipole perturbation enhances the magnetic shear. The width of the stochastic layer scales exponentially with {kappa}. The area of the footprint decreases as the {kappa} increases. The radial diffusion coefficient of field lines scales exponentially with {kappa}. The dipole perturbation changes the topology of the footprint. It breaks up the toroidally spiraling footprint into a number of separate asymmetric toroidal strips. Practical applications of the symmetric quartic map to elongated divertor tokamak plasmas are suggested.

  20. ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS

    E-Print Network [OSTI]

    Papalambros, Panos

    ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS Jeremy of Business. #12;- 1 - ENHANCING MARKETING WITH ENGINEERING: OPTIMAL PRODUCT LINE DESIGN FOR HETEROGENEOUS MARKETS ABSTRACT Successful product line design and development often requires balancing technical

  1. PROPERTIES OF ADHESIVES AND CPVC MATERIALS PROPOSED FOR STEEL TANK LINING

    E-Print Network [OSTI]

    of damaged tanks. In the past few years, thermoplastic sheet linings have garnered attention as tank lining under severe exposure conditions. The proposed thermoplastic tank lining material used for the cur

  2. Effects of glial cell line-derived neurotrophic factor on cultured murine retinal progenitor cells

    E-Print Network [OSTI]

    Wang, Jinmei; Yang, Jing; Gu, Ping; Klassen, Henry

    2010-01-01

    of glial cell line-derived neurotrophic factor (GDNF)F. GDNF: a glial cell line-derived neurotrophic factor forlevel glial cell line-derived neurotrophic factor delivery

  3. QER- Comment of Claire Chang

    Office of Energy Efficiency and Renewable Energy (EERE)

    on proposed Kinder Morgan gas pipeline through MA. — The pipeline is not needed. This pipeline is being touted as filling in a "shortfall" in fuel needed for electricity generation. The "shortfall" in energy has only occurred during very cold snaps when more of the current gas supply is used for heating instead of electric generation. This occasional "shortfall" can be cut by 1/3 just by fixing the leaks in the current gas infrastructure in the state. The remaining 2/3 can easily be made up by expanding current energy efficiency programs like MassSave. — Caps on clean energy need to be removed. A further boost to fill in the occasional "shortfall" in the grid could be achieved removing the cap on the amount of independently generated clean energy (small-scale wind and solar), that can be sold back to the grid. These are systems are already in place and would allow more power into the grid without any additional infrastructure investments needed. — Gas is also intended for export. The pipeline being proposed brings in many times more gas than would be needed to fill in the "shortfall" even if it was a constant need. According to Kinder Morgan's own memo, this extra capacity is slated to go toward increased gas use along newly proposed lateral distribution lines, which works against the state's own greenhouse gas emissions goals, and for export to the Canadian Maritimes, which does not benefit the people of Massachusetts or the country and drives up the price of gas, negating any claims of the project providing cheaper energy. — Ratepayers bear the costs & risks with no benefit. Having electric rate payers fund the pipeline through the proposed tariff is unfair. The pipeline is a private venture, yet the general public is expected to foot the bill and bear the health, safety and environmental risks, while Kinder Morgan and Tennessee Gas Pipeline stockholders reap the benefits. — More gas makes us more dependent. The state's electric generation is already approx 2/3 natural gas. Increasing this makes us even more vulnerable to swings in fuel prices, especially in rapidly changing geo political climate and as this finite resource becomes increasingly rare. — State & ratepayer funds could be better spent. If these kinds of funds are going to be raised on rate payers, they should go toward expanding energy efficiency programs, increased incentives for decentralized roof-top wind and solar generation, more efficient electric transmission lines, more effective energy storage from big wind and solar generation installations. — Pipeline carries financial burden for landowners. The payment for the easement on your land is a one-time deal and is not much money when weighed against the costs to property value. The presence of gas pipelines has historically had a severe negative impact on property values, rendering the properties it crosses virtually unsellable, no longer eligible for a mortgage, and often negating any insurance policies. — Health and safety are at risk. The bad track record for safety of the gas industry, and Kinder Morgan in particular, does not bode well for the health and safety of the people of the Commonwealth. Leaks are frequent, and they can happen even in underground and underwater sections of this buried pipeline. Off-gassing of carcinogens, neurotoxins and endocrine disrupting chemicals at compressor stations every 40-50 miles are constant. Explosions of a pipeline this size and at this high pressure are catastrophic and the fires are fed by many, many miles worth of fuel between shut-off stations, leading to prolonged, extremely high temperature burn. — Pipeline construction and presence pose unwarranted damage and risks. The track of this proposed pipeline cuts through over 900 personal properties, farms, watersheds, major rivers and protected wetlands and forests, leaving all of them to deal with the presence of a toxic mix of chemicals for the decades its in use and the decaying infrastructure for decades after it's no longer in use. — The boost to local taxes is not enough. Any taxe

  4. ESTIMATING RISK TO CALIFORNIA ENERGY INFRASTRUCTURE FROM PROJECTED CLIMATE CHANGE

    SciTech Connect (OSTI)

    Sathaye, Jayant; Dale, Larry; Larsen, Peter; Fitts, Gary; Koy, Kevin; Lewis, Sarah; Lucena, Andre

    2011-06-22

    This report outlines the results of a study of the impact of climate change on the energy infrastructure of California and the San Francisco Bay region, including impacts on power plant generation; transmission line and substation capacity during heat spells; wildfires near transmission lines; sea level encroachment upon power plants, substations, and natural gas facilities; and peak electrical demand. Some end-of-century impacts were projected:Expected warming will decrease gas-fired generator efficiency. The maximum statewide coincident loss is projected at 10.3 gigawatts (with current power plant infrastructure and population), an increase of 6.2 percent over current temperature-induced losses. By the end of the century, electricity demand for almost all summer days is expected to exceed the current ninetieth percentile per-capita peak load. As much as 21 percent growth is expected in ninetieth percentile peak demand (per-capita, exclusive of population growth). When generator losses are included in the demand, the ninetieth percentile peaks may increase up to 25 percent. As the climate warms, California's peak supply capacity will need to grow faster than the population.Substation capacity is projected to decrease an average of 2.7 percent. A 5C (9F) air temperature increase (the average increase predicted for hot days in August) will diminish the capacity of a fully-loaded transmission line by an average of 7.5 percent.The potential exposure of transmission lines to wildfire is expected to increase with time. We have identified some lines whose probability of exposure to fire are expected to increase by as much as 40 percent. Up to 25 coastal power plants and 86 substations are at risk of flooding (or partial flooding) due to sea level rise.

  5. Iron line reverberation mapping with Constellation-X

    E-Print Network [OSTI]

    A. J. Young; C. S. Reynolds

    1999-10-08

    The broad X-ray iron line seen in the spectra of many AGN is thought to originate from the inner regions of the putative black hole accretion disk, and hence provides a rare probe of that central region. In principle, future high throughput X-ray spectrometers should be able to examine the temporal response of this fluorescent line to flares in the X-ray continuum source (which energizes this emission line) - i.e. iron line reverberation mapping will be possible. It has been previously found that there are robust reverberation signatures of the black hole spin, mass and the X-ray flare location above the accretion disk. Here, we simulate observations of a bright Seyfert nucleus with the proposed NASA mission Constellation-X and demonstrate the feasibility of detecting these reverberation signatures with this mission. Hence, starting with XMM in 1999, and maturing with Constellation-X in c2010, iron line reverberation will open a new window on the innermost regions of AGN.

  6. HIGH-n HYDROGEN RECOMBINATION LINES FROM THE FIRST GALAXIES

    SciTech Connect (OSTI)

    Rule, E.; Loeb, A.; Strelnitski, V. S.

    2013-09-20

    We investigate the prospects of blind and targeted searches in the radio domain (10 MHz to 1 THz) for high-n hydrogen recombination lines from the first generation of galaxies, at z ?< 10. The expected optically thin spontaneous ?-line luminosities are calculated as a function of the absolute AB magnitude of a galaxy at 1500 Å. For a blind search, semi-empirical luminosity functions are used to calculate the number of galaxies whose expected flux densities exceed an assumed detectability threshold. Plots of the minimum sky area, within which at least one detectable galaxy is expected at a given observing frequency, in the fiducial instantaneous passband of 10{sup 4} km s{sup –1}, allow us to assess the blind search time necessary for detection by a given facility. We show that the chances for detection are the highest in the millimeter and submillimeter domains, but finding spontaneous emission in a blind search, especially from redshifts z >> 1, is a challenge even with powerful facilities, such as the Actama Large Millimeter/Submillimeter Array and Square Kilometre Array. The probability of success is higher for a targeted search of lines with principal quantum number n ? 10 in Lyman-break galaxies amplified by gravitational lensing. Detection of more than one hydrogen line in such a galaxy will allow for line identification and a precise determination of the galaxy's redshift.

  7. Constraining FeLoBAL outflows from absorption line variability

    E-Print Network [OSTI]

    McGraw, S M; Hamann, F W; Capellupo, D M; Gallagher, S C; Brandt, W N

    2015-01-01

    FeLoBALs are a rare class of quasar outflows with low-ionization broad absorption lines (BALs), large column densities, and potentially large kinetic energies that might be important for `feedback' to galaxy evolution. In order to probe the physical properties of these outflows, we conducted a multiple-epoch, absorption line variability study of 12 FeLoBAL quasars spanning a redshift range between 0.7 and 1.9 over rest frame time-scales of approximately 10 d to 7.6 yr. We detect absorption line variability with greater than 8 sigma confidence in 3 out of the 12 sources in our sample over time-scales of 0.6 to 7.6 yr. Variable wavelength intervals are associated with ground and excited state Fe II multiplets, the Mg II 2796, 2803 doublet, Mg I 2852, and excited state Ni II multiplets. The observed variability along with evidence of saturation in the absorption lines favors transverse motions of gas across the line of sight (LOS) as the preferred scenario, and allows us to constrain the outflow distance from th...

  8. The Source of the Helium Visible Lines in Eta Carinae

    E-Print Network [OSTI]

    Amit Kashi; Noam Soker

    2007-04-13

    We assume that the helium-I lines emitted by the massive binary system Eta Carinae are formed in the acceleration zone of the less-massive secondary star. We calculate the Doppler shift of the lines as a function of orbital phase and of several parameters of the binary system. We find that a good fit is obtained if the helium lines are formed in the region where the secondary wind speed is 430 km/sec. The acceptable binary eccentricity is in the range 0.9-0.95, and the inclination angle (the angle between a line perpendicular to the orbital plane and the line of sight) is in the range 40-55 degrees. Lower values of e require higher values of i, and vice versa. The binary system is oriented such that the secondary star is in our direction (closer to us) during periastron passage. The orbital motion can account in part to the Doppler shift of the peak in X-ray emission.

  9. The Source of the Helium Visible Lines in Eta Carinae

    E-Print Network [OSTI]

    Kashi, A; Kashi, Amit; Soker, Noam

    2007-01-01

    We assume that the helium-I lines emitted by the massive binary system Eta Carinae are formed in the acceleration zone of the less-massive secondary star. We calculate the Doppler shift of the lines as a function of orbital phase and of several parameters of the binary system. We find that a good fit is obtained if the helium lines are formed in the region where the secondary wind speed is 430 km/sec. The acceptable binary eccentricity is in the range 0.9-0.95, and the inclination angle (the angle between a line perpendicular to the orbital plane and the line of sight) is in the range 40-55 degrees. Lower values of e require higher values of i, and vice versa. The binary system is oriented such that the secondary star is in our direction (closer to us) during periastron passage. The orbital motion can account in part to the Doppler shift of the peak in X-ray emission.

  10. Chemistry and line emission from evolving Herbig Ae disks

    E-Print Network [OSTI]

    B. Jonkheid; C. P. Dullemond; M. R. Hogerheijde; E. F. van Dishoeck

    2006-11-07

    Aims: To calculate chemistry and gas temperature of evolving protoplanetary disks with decreasing mass or dust settling, and to explore the sensitivity of gas-phase tracers. Methods: The density and dust temperature profiles for a range of models of flaring and self-shadowed disks around a typical Herbig Ae star are used together with 2-dimensional ultraviolet (UV) radiative transfer to calculate the chemistry and gas temperature. In each model the line profiles and intensities for the fine structure lines of [O I], [C II] and [C I] and the pure rotational lines of CO, CN, HCN and HCO+ are determined. Results: The chemistry shows a strong correlation with disk mass. Molecules that are easily dissociated, like HCN, require high densities and large extinctions before they can become abundant. The products of photodissociation, like CN and C2H, become abundant in models with lower masses. Dust settling mainly affects the gas temperature, and thus high temperature tracers like the O and C+ fine structure lines. The carbon chemistry is found to be very sensitive to the adopted PAH abundance. The line ratios CO/13CO, CO/HCO+ and [O I] 63 um/146 um can be used to distinguish between disks where dust growth and settling takes place, and disks that undergo overall mass loss.

  11. Rapidity evolution of Wilson lines at the next-to-leading order

    SciTech Connect (OSTI)

    Balitsky, Ian; Chirilli, Giovanni

    2013-12-01

    At high energies particles move very fast so the proper degrees of freedom for the fast gluons moving along the straight lines are Wilson-line operators - infinite gauge factors ordered along the line. In the framework of operator expansion in Wilson lines the energy dependence of the amplitudes is determined by the rapidity evolution of Wilson lines. We present the next-to-leading order hierarchy of the evolution equations for Wilson-line operators.

  12. Tribal Climate Change Webinars: BIA's Climate Change Competitive...

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

    climate adaptation, ocean and coastal planning, and youth internships. SpeakersSean Hart, BIA Climate Change Coordinator, andRachael Novak, BIA Climate Science Coordinator,...

  13. Resonance ionization laser ion sources for on-line isotope separators...

    Office of Scientific and Technical Information (OSTI)

    Resonance ionization laser ion sources for on-line isotope separators (invited) Citation Details In-Document Search Title: Resonance ionization laser ion sources for on-line...

  14. The Business Case for Fuel Cells 2014: Powering the Bottom Line...

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

    4: Powering the Bottom Line for Businesses and Communities The Business Case for Fuel Cells 2014: Powering the Bottom Line for Businesses and Communities This report, written and...

  15. Fishing the line near marine reserves in single and multispecies fisheries

    E-Print Network [OSTI]

    Kellner, Julie B; Tetreault, Irene; Gaines, Steven D; Nisbet, Roger M

    2007-01-01

    14:129–137. June 2007 FISHING THE LINE NEAR MARINE RESERVESEcological Society of America FISHING THE LINE NEAR MARINEregulated by ?shing. Fishing has two components: total ?

  16. Multimode circuit QED with hybrid metamaterial transmission lines

    E-Print Network [OSTI]

    Daniel J. Egger; Frank K. Wilhelm

    2013-11-07

    Quantum transmission lines are a central to superconducting and hybrid quantum computing. Parallel to these developments are those of left-handed meta-materials. They have a wide variety of applications in photonics from the microwave to the visible range such as invisibility cloaks and perfect flat lenses. For classical guided microwaves, left-handed transmission lines have been proposed and studied on the macroscopic scale. We combine these ideas in presenting a left-handed/right-handed hybrid transmission line for applications in quantum optics on a chip. The resulting system allows circuit QED to reach a new regime: multi-mode ultra-strong coupling. Out of the many potential applications of this novel device, we discuss two; the preparation of multipartite entangled states and its use as a quantum simulator for the spin-boson model where a quantum phase transition is reached up to finite size-effects.

  17. MORPHOMETRIC SUBTYPING FOR A PANEL OF BREAST CANCER CELL LINES

    SciTech Connect (OSTI)

    Han, Ju; Chang, Hang; Fontenay, Gerald; Wang, Nicholas J.; Gray, Joe W.; Parvin, Bahram

    2009-05-08

    A panel of cell lines of diverse molecular background offers an improved model system for high-content screening, comparative analysis, and cell systems biology. A computational pipeline has been developed to collect images from cell-based assays, segment individual cells and colonies, represent segmented objects in a multidimensional space, and cluster them for identifying distinct subpopulations. While each segmentation strategy can vary for different imaging assays, representation and subpopulation analysis share a common thread. Application of this pipeline to a library of 41 breast cancer cell lines is demonstrated. These cell lines are grown in 2D and imaged through immunofluorescence microscopy. Subpopulations in this panel are identified and shown to correlate with previous subtyping literature that was derived from transcript data.

  18. Product Lines for Service Oriented Applications - PL for SOA

    E-Print Network [OSTI]

    ter Beek, Maurice H; Njima, Mercy N; 10.4204/EPTCS.61.3

    2011-01-01

    PL for SOA proposes, formally, a software engineering methodology, development techniques and support tools for the provision of service product lines. We propose rigorous modeling techniques for the specification and verification of formal notations and languages for service computing with inclinations of variability. Through these cutting-edge technologies, increased levels of flexibility and adaptivity can be achieved. This will involve developing semantics of variability over behavioural models of services. Such tools will assist organizations to plan, optimize and control the quality of software service provision, both at design and at run time by making it possible to develop flexible and cost-effective software systems that support high levels of reuse. We tackle this challenge from two levels. We use feature modeling from product line engineering and, from a services point of view, the orchestration language Orc. We introduce the Smart Grid as the service product line to apply the techniques to.

  19. CONTINUOUS EXTRACTED BEAM IN THE AGS FAST EXTERNAL BEAM LINE.

    SciTech Connect (OSTI)

    GLENN,J.W.; TSOUPAS,N.; BROWN,K.A.; BIRYUKOV,V.M.

    2001-06-18

    A method to split off a few percent of the 6 x 10{sup 13} AGS beam delivered to the Slow External Beam (SEB) lines and send it down the Fast External Beam line (FEB) has been developed. The mission is to feed a counter experiment off the FEB that directly measures the neutrino mass using the muon storage ring. The use of normal thin septum splitters would have an excessive loss overhead and been optically difficult. The AGS Slow Extraction uses a third integer resonance with sextuple strength so the resonance width is a few percent of the beam width. This results in a low density tail which will be clipped by a bent crystal and deflected into the FEB channel. This clipping off of the tail should reduce losses in the SEB transport line. Details of modeled orbits, particle distribution and extraction trajectories into and out off the crystal will be given.

  20. Observations and modelling of Helium lines in solar flares

    E-Print Network [OSTI]

    Simões, Paulo J A; Labrosse, Nicolas; Kerr, Graham S

    2015-01-01

    We explore the response of the He II 304 {\\AA} and He I 584 {\\AA} line intensities to electron beam heating in solar flares using radiative hydrodynamic simulations. Comparing different electron beams parameters, we found that the intensities of both He lines are very sensitive to the energy flux deposited in the chromosphere, or more specifically to the heating rate, with He II 304 {\\AA} being more sensitive to the heating than He I 584 {\\AA}. Therefore, the He line ratio increases for larger heating rates in the chromosphere. A similar trend is found in observations, using SDO/EVE He irradiance ratios and estimates of the electron beam energy rate obtained from hard X-ray data. From the simulations, we also found that spectral index of the electrons can affect the He ratio but a similar effect was not found in the observations.

  1. Lassoing Line Outages in the Smart Power Grid

    E-Print Network [OSTI]

    Zhu, Hao

    2011-01-01

    Fast and accurate unveiling of power line outages is of paramount importance not only for preventing faults that may lead to blackouts, but also for routine monitoring and control tasks of the smart grid, including state estimation and optimal power flow. Existing approaches are either challenged by the \\emph{combinatorial complexity} issues involved, and are thus limited to identifying single- and double-line outages; or, they invoke less pragmatic assumptions such as \\emph{conditionally independent} phasor angle measurements available across the grid. Using only a subset of voltage phasor angle data, the present paper develops a near real-time algorithm for identifying multiple line outages at the affordable complexity of solving a quadratic program via block coordinate descent iterations. The novel approach relies on reformulating the DC linear power flow model as a \\emph{sparse} overcomplete expansion, and leveraging contemporary advances in compressive sampling and variable selection using the least-abso...

  2. Electric and magnetic field reduction by alternative transmission line options

    SciTech Connect (OSTI)

    Stewart, J.R. (Power Technologies, Inc., Schenectady, NY (United States)); Dale, S.J. (Oak Ridge National Lab., TN (United States)); Klein, K.W. (Energetics, Inc., Columbia, MD (United States))

    1991-01-01

    Ground level electric, and more recently magnetic, fields from overhead power transmission lines are increasingly important considerations in right of way specification, with states setting or planning to set edge of right of way limits. Research has been conducted in high phase order power transmission wherein six of twelve phases are used to transmit power in less physical space and with reduced electrical environmental effects than conventional designs. The first magnetic field testing, as reported in this paper, has verified predictive methods for determination of magnetic fields from high phase order lines. Based on these analytical methods, field profiles have been determined for lines of different phase order of comparable power capacity. Potential advantages of high phase order as a means of field mitigation are discussed. 10 refs., 12 figs., 3 tabs.

  3. Universal contact-line dynamics at the nanoscale

    E-Print Network [OSTI]

    Marco Rivetti; Thomas Salez; Michael Benzaquen; Elie Raphaël; Oliver Bäumchen

    2015-07-31

    The relaxation dynamics of the contact angle between a viscous liquid and a smooth substrate is studied at the nanoscale. Through atomic force microscopy measurements of polystyrene nanostripes we monitor simultaneously the temporal evolution of the liquid-air interface as well as the position of the contact line. The initial configuration exhibits high curvature gradients and a non-equilibrium contact angle that drive liquid flow. Both these conditions are relaxed to achieve the final state, leading to three successive regimes along time: i) stationary-contact-line levelling; ii) receding-contact-line dewetting; iii) collapse of the two fronts. For the first regime, we reveal the existence of a self-similar evolution of the liquid interface, which is in excellent agreement with numerical calculations from a lubrication model. For different liquid viscosities and film thicknesses we provide evidence for a transition to dewetting featuring a universal critical contact angle and dimensionless time.

  4. Probing Galaxy Formation with He II Cooling Lines

    E-Print Network [OSTI]

    Yujin Yang; Ann I. Zabludoff; Romeel Davé; Daniel J. Eisenstein; Philip A. Pinto; Neal Katz; David H. Weinberg; Elizabeth J. Barton

    2005-09-01

    Using high resolution cosmological simulations, we study hydrogen and helium gravitational cooling radiation. We focus on the HeII cooling lines, which arise from gas with a different temperature history (T_max ~ 10^5K) than HI line emitting gas. We examine whether three major atomic cooling lines, HI 1216A, HeII 1640A and HeII 304A are observable, finding that HI 1216A and HeII 1640A cooling emission at z=2-3 are potentially detectable with deep narrow band (R>100) imaging and/or spectroscopy from the ground. While the expected strength of HI 1216A cooling emission depends strongly on the treatment of the self-shielded phase of the IGM in the simulations, our predictions for the HeII 1640A line are more robust because the HeII 1640A emissivity is negligible below T~10^4.5 K and less sensitive to the UV background. Although HeII 1640A cooling emission is fainter than HI 1216A by at least a factor of 10 and, unlike HI 1216A, might not be resolved spatially with current observational facilities, it is more suitable to study gas accretion in the galaxy formation process because it is optically thin and less contaminated by the recombination lines from star-forming galaxies. The HeII 1640A line can be used to distinguish among mechanisms for powering the so-called "Lyman alpha blobs" -- including gravitational cooling radiation, photoionization by stellar populations, and starburst-driven superwinds -- because (1) HeII 1640A emission is limited to very low metallicity (log(Z/Z_sun) wind speeds.

  5. Deriving Particle Distributions from In-Line Fraunhofer Holographic Data

    SciTech Connect (OSTI)

    C.A. Ciarcia; D.E. Johnson; D.S. Sorenson; R.H. Frederickson, A.D. Delanoy; R.M. Malone; T.W. Tunnel

    1997-08-01

    Holographic data are acquired during hydrodynamic experiments at the Pegasus Pulsed Power Facility at the Los Alamos National Laboratory. These experiments produce a fine spray of fast-moving particles. Snapshots of the spray are captured using in-line Fraunhofer holographic techniques. Roughly one cubic centimeter is recorded by the hologram. Minimum detectable particle size in the data extends down to 2 microns. In a holography reconstruction system, a laser illuminates the hologram as it rests in a three-axis actuator, recreating the snapshot of the experiment. A computer guides the actuators through an orderly sequence programmed by the user. At selected intervals, slices of this volume are captured and digitized with a CCD camera. Intermittent on-line processing of the image data and computer control of the camera functions optimizes statistics of the acquired image data for off-line processing. Tens of thousands of individual data frames (30 to 40 gigabytes of data) are required to recreate a digital representation of the snapshot. Throughput of the reduction system is 550 megabytes per hour (MB/hr). Objects and associated features from the data are subsequently extracted during off-line processing. Discrimination and correlation tests reject noise, eliminate multiple counting of particles, and build an error model to estimate performance. Objects surviving these tests are classified as particles. The particle distributions are derived from the data base formed by these particles, their locations and features. Throughput of the off-line processing exceeds 500 MB/hr. This paper describes the reduction system, outlines the off-line processing procedure, summarizes the discrimination and correlation tests, and reports numerical results for a sample data set.

  6. Climate Change, Adaptation, and Development

    E-Print Network [OSTI]

    Cole, Daniel H.

    2008-01-01

    climate change is coal gasification, which can make thethe world leaders in coal gasification tech- nology, haswill not occur. If not coal gasification, then perhaps fuel

  7. Climate Change, Adaptation, and Development

    E-Print Network [OSTI]

    Cole, Daniel H.

    2008-01-01

    climate change is coal gasification, which can make theworld leaders in coal gasification tech- nology, has beenexperimenting with "in situ" gasification, where the coal is

  8. Floods, Droughts, and Climate Change

    E-Print Network [OSTI]

    Hook, Robert D.

    2003-01-01

    Review: Floods, Droughts, and Climate Change By MichaelCollier, & Robert H. Webb. Floods, Droughts, and Climateinformation about what floods and droughts can do. One photo

  9. Climate change risk and response

    E-Print Network [OSTI]

    Kahrl, Fredrich; Roland-Holst, David

    2008-01-01

    Potential Changes in Hydropower Production from Globalon high elevation hydropower generation in California’s7 reduction in the state’s hydropower resources, which last

  10. Climate Change and Open Science

    E-Print Network [OSTI]

    Ian Percival

    2013-08-26

    Obtaining reliable answers to the major scientific questions raised by climate change in time to take appropriate action gives added urgency to the open access program.

  11. Climate Change and Open Science

    E-Print Network [OSTI]

    Percival, Ian

    2013-01-01

    Obtaining reliable answers to the major scientific questions raised by climate change in time to take appropriate action gives added urgency to the open access program.

  12. Climate Change/Paleoclimate & Geochronology

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

    Climate ChangePaleoclimate & Geochronology "The instrumental record is generally considered not to be long enough to give a complete picture of climate variability... It is...

  13. Phase Transitions above the Yrast Line in {sup 154}Dy

    SciTech Connect (OSTI)

    Ma, W. C.; Martin, V.; Khoo, T. L.; Lauritsen, T.; Egido, J. L.; Ahmad, I.; Bhattacharyya, P.; Carpenter, M. P.; Daly, P. J.; Grabowski, Z. W.

    2000-06-26

    Spectra of the E2 quasicontinuum {gamma} rays feeding different spin regions of the {sup 154}Dy yrast line have been extracted. These are compared with corresponding theoretical spectra obtained by numerical simulations based on temperature-dependent Hartree-Fock theory, with thermal shape fluctuations. In this manner, different regions of the spin-energy plane can be examined. The results support the predictions of a smeared-out phase transition at high spin above the yrast line. (c) 2000 The American Physical Society.

  14. Characterization Plan for Soils Around Drain Line PLA-100115

    SciTech Connect (OSTI)

    D. Shanklin

    2006-05-24

    This Characterization Plan supports the Hazardous Waste Management Act/Resource Conservation and Recovery Act (HWMA/RCRA) closure of soils that may have been contaminated by releases from drain line PLA-100115, located within the Idaho Nuclear Technology and Engineering Center at the Idaho National Laboratory Site. The requirements to address the closure of soils contaminated by a potential release from this line in a characterization plan was identified in the "HWMA/RCRA Less Than 90-day Generator Closure Report for the VES-SFE-126."

  15. Self-monitoring high voltage transmission line suspension insulator

    DOE Patents [OSTI]

    Stemler, Gary E. (Vancouver, WA); Scott, Donald N. (Vancouver, WA)

    1981-01-01

    A high voltage transmission line suspension insulator (18 or 22) which monitors its own dielectric integrity. A dielectric rod (10) has one larger diameter end fitting attachable to a transmission line and another larger diameter end fitting attachable to a support tower. The rod is enclosed in a dielectric tube (14) which is hermetically sealed to the rod's end fittings such that a liquidtight space (20) is formed between the rod and the tube. A pressurized dielectric liquid is placed within that space. A discoloring dye placed within this space is used to detect the loss of the pressurized liquid.

  16. Cast-stone sectors for lining bends in pipework

    SciTech Connect (OSTI)

    Chechulin, V.A.; Novikov, A.I.; Karpov, V.M.; Sotnik, A.A.; Sedyshev, B.L.

    1987-03-01

    The authors disclose an efficient method for lining the bends of pipelines used to deliver coal dust to the burners of coal-fired power plants or to transport coal slurries in mining and preparation enterprises. The method consists of melting a wear-resistant silicate compound and casting it in the form of rings whose increased width on the outboard side accounts for the angle of the bend when the rings are installed consecutively inside the pipe. Enhanced service life estimations and cost benefit analyses are given for pipe bends thus lined in both of the above applications.

  17. Dynamic Line Rating Oncor Electric Delivery Smart Grid Program

    SciTech Connect (OSTI)

    Johnson, Justin; Smith, Cale; Young, Mike; Donohoo, Ken; Owen, Ross; Clark, Eddit; Espejo, Raul; Aivaliotis, Sandy; Stelmak, Ron; Mohr, Ron; Barba, Cristian; Gonzalez, Guillermo; Malkin, Stuart; Dimitrova, Vessela; Ragsdale, Gary; Mitchem, Sean; Jeirath, Nakul; Loomis, Joe; Trevino, Gerardo; Syracuse, Steve; Hurst, Neil; Mereness, Matt; Johnson, Chad; Bivens, Carrie

    2013-05-04

    Electric transmission lines are the lifeline of the electric utility industry, delivering its product from source to consumer. This critical infrastructure is often constrained such that there is inadequate capacity on existing transmission lines to efficiently deliver the power to meet demand in certain areas or to transport energy from high-generation areas to high-consumption regions. When this happens, the cost of the energy rises; more costly sources of power are used to meet the demand or the system operates less reliably. These economic impacts are known as congestion, and they can amount to substantial dollars for any time frame of reference: hour, day or year. There are several solutions to the transmission constraint problem, including: construction of new generation, construction of new transmission facilities, rebuilding and reconductoring of existing transmission assets, and Dynamic Line Rating (DLR). All of these options except DLR are capital intensive, have long lead times and often experience strong public and regulatory opposition. The Smart Grid Demonstration Program (SGDP) project co-funded by the Department of Energy (DOE) and Oncor Electric Delivery Company developed and deployed the most extensive and advanced DLR installation to demonstrate that DLR technology is capable of resolving many transmission capacity constraint problems with a system that is reliable, safe and very cost competitive. The SGDP DLR deployment is the first application of DLR technology to feed transmission line real-time dynamic ratings directly into the system operation’s State Estimator and load dispatch program, which optimizes the matching of generation with load demand on a security, reliability and economic basis. The integrated Dynamic Line Rating (iDLR)1 collects transmission line parameters at remote locations on the lines, calculates the real-time line rating based on the equivalent conductor temperature, ambient temperature and influence of wind and solar radiation on the stringing section, transmits the data to the Transmission Energy Management System, validates its integrity and passes it on to Oncor and ERCOT (Electric Reliability Council of Texas) respective system operations. The iDLR system is automatic and transparent to ERCOT System Operations, i.e., it operates in parallel with all other system status telemetry collected through Supervisory Control and Data Acquisition (SCADA) employed across the company.

  18. Evaluation of Instrumentation and Dynamic Thermal Ratings for Overhead Lines

    SciTech Connect (OSTI)

    Phillips, A.

    2013-01-31

    In 2010, a project was initiated through a partnership between the Department of Energy (DOE) and the New York Power Authority (NYPA) to evaluate EPRI?s rating technology and instrumentation that can be used to monitor the thermal states of transmission lines and provide the required real-time data for real-time rating calculations. The project included the installation and maintenance of various instruments at three 230 kV line sites in northern New York. The instruments were monitored, and data collection and rating calculations were performed for about a three year period.

  19. World-line observables and clocks in General Relativity

    E-Print Network [OSTI]

    Hossein Farajollahi

    2005-11-20

    A proposal for the issue of time and observables in any parameterized theory such as general relativity is addressed. Introduction of a gauge potential 3-form A in the theory of relativity enables us to define a gauge-invariant quantity which can be used by observers as a clock to measure the passage of time. This dynamical variable increases monotonically and continuously along a world line. Then we define world line observables to be any covariantly defined quantity obtained from the field configurations on any such causal past with dynamical time T.

  20. Modeling of coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in lined rock caverns

    E-Print Network [OSTI]

    Rutqvist, J.

    2013-01-01

    compressed air energy storage (CAES) in lined rock cavernsCompressed Air Energy Storage (CAES) in Lined Rock Cavernscompressed air energy storage (CAES) in concrete-lined rock

  1. Changes in Dimethyl Sulfide Oceanic Distribution due to Climate Change

    SciTech Connect (OSTI)

    Cameron-Smith, P; Elliott, S; Maltrud, M; Erickson, D; Wingenter, O

    2011-02-16

    Dimethyl sulfide (DMS) is one of the major precursors for aerosols and cloud condensation nuclei in the marine boundary layer over much of the remote ocean. Here they report on coupled climate simulations with a state-of-the-art global ocean biogeochemical model for DMS distribution and fluxes using present-day and future atmospheric CO{sub 2} concentrations. They find changes in zonal averaged DMS flux to the atmosphere of over 150% in the Southern Ocean. This is due to concurrent sea ice changes and ocean ecosystem composition shifts caused by changes in temperature, mixing, nutrient, and light regimes. The largest changes occur in a region already sensitive to climate change, so any resultant local CLAW/Gaia feedback of DMS on clouds, and thus radiative forcing, will be particularly important. A comparison of these results to prior studies shows that increasing model complexity is associted with reduced DMS emissions at the equator and increased emissions at high latitudes.

  2. A near-IR line of Mn I as a diagnostic tool of the average magnetic energy in the solar photosphere

    E-Print Network [OSTI]

    A. Asensio Ramos; M. J. Martinez Gonzalez; A. Lopez Ariste; J. Trujillo Bueno; M. Collados

    2006-12-14

    We report on spectropolarimetric observations of a near-IR line of Mn I located at 15262.702 A whose intensity and polarization profiles are very sensitive to the presence of hyperfine structure. A theoretical investigation of the magnetic sensitivity of this line to the magnetic field uncovers several interesting properties. The most important one is that the presence of strong Paschen-Back perturbations due to the hyperfine structure produces an intensity line profile whose shape changes according to the absolute value of the magnetic field strength. A line ratio technique is developed from the intrinsic variations of the line profile. This line ratio technique is applied to spectropolarimetric observations of the quiet solar photosphere in order to explore the probability distribution function of the magnetic field strength. Particular attention is given to the quietest area of the observed field of view, which was encircled by an enhanced network region. A detailed theoretical investigation shows that the inferred distribution yields information on the average magnetic field strength and the spatial scale at which the magnetic field is organized. A first estimation gives ~250 G for the mean field strength and a tentative value of ~0.45" for the spatial scale at which the observed magnetic field is horizontally organized.

  3. Climate Change and National Security

    SciTech Connect (OSTI)

    Malone, Elizabeth L.

    2013-02-01

    Climate change is increasingly recognized as having national security implications, which has prompted dialogue between the climate change and national security communities – with resultant advantages and differences. Climate change research has proven useful to the national security community sponsors in several ways. It has opened security discussions to consider climate as well as political factors in studies of the future. It has encouraged factoring in the stresses placed on societies by climate changes (of any kind) to help assess the potential for state stability. And it has shown that, changes such as increased heat, more intense storms, longer periods without rain, and earlier spring onset call for building climate resilience as part of building stability. For the climate change research community, studies from a national security point of view have revealed research lacunae, for example, such as the lack of usable migration studies. This has also pushed the research community to consider second- and third-order impacts of climate change, such as migration and state stability, which broadens discussion of future impacts beyond temperature increases, severe storms, and sea level rise; and affirms the importance of governance in responding to these changes. The increasing emphasis in climate change science toward research in vulnerability, resilience, and adaptation also frames what the intelligence and defense communities need to know, including where there are dependencies and weaknesses that may allow climate change impacts to result in security threats and where social and economic interventions can prevent climate change impacts and other stressors from resulting in social and political instability or collapse.

  4. Field Trial of LANL On-Line Advanced Enrichment Monitor for UF6 GCEP

    SciTech Connect (OSTI)

    Ianakiev, Kiril D.; Lombardi, Marcie; MacArthur, Duncan W.; Parker, Robert F.; Smith, Morag K.; Keller, Clifford; Friend, Peter; Dunford, Andrew

    2012-07-13

    The outline of this presentation is: (1) Technology basis of on-line enrichment monitoring; (2) Timescale of trial; (3) Description of installed equipment; (4) Photographs; (5) Results; (6) Possible further development; and (7) Conclusions. Summary of the good things about the Advanced Enrichment Monitor (AEM) performance is: (1) High accuracy - normally better than 1% relative, (2) Active system as accurate as passive system, (3) Fast and accurate detection of enrichment changes, (4) Physics is well understood, (5) Elegant method for capturing pressure signal, and (6) Data capture is automatic, low cost and fast. A couple of negative things are: (1) Some jumps in measured passive enrichment - of around +2% relative (due to clock errors?); and (2) Data handling and evaluation is off-line, expensive and very slow. Conclusions are: (1) LANL AEM is being tested on E23 plant at Capenhurst; (2) The trial is going very well; (3) AEM could detect production of HEU at potentially much lower cost than existing CEMO; (4) AEM can measure {sup 235}U assay accurately; (5) Active system using X-Ray source would avoid need for pressure measurement; (6) Substantial work lies ahead to go from current prototype to a production instrument.

  5. Time-resolved x-ray line diagnostics of laser-produced plasmas

    SciTech Connect (OSTI)

    Kauffman, R.L.; Matthews, D.L.; Kilkenny, J.D.; Lee, R.W.

    1982-01-01

    We have examined the underdense plasma conditions of laser irradiated disks using K x-rays from highly ionized ions. A 900 ps laser pulse of 0.532 ..mu..m light is used to irradiate various Z disks which have been doped with low concentrations of tracer materials. The tracers whose Z's range from 13 to 22 are chosen so that their K x-ray spectrum is sensitive to typical underdense plasma temperatures and densities. Spectra are measured using a time-resolved crystal spectrograph recording the time history of the x-ray spectrum. A spatially-resolved, time-integrated crystal spectrograph also monitors the x-ray lines. Large differences in Al spectra are observed when the host plasma is changed from SiO/sub 2/ to PbO or In. Spectra will be presented along with preliminary analysis of the data.

  6. Using ultra narrow bandwidth to overcome traditional problems with distribution line carrier

    SciTech Connect (OSTI)

    Hunt, P.C.; Hunt, L.R.

    1995-12-31

    It has long been common knowledge among communication engineers that wide bandwidth signals require more energy to overcome noise than do narrow band signals. This is why, during adverse conditions Morse code radio communications can get through when voice can`t. To achieve similar range: A television transmitter (6000 kHz bandwidth) requires 200,000 watts; A music broadcast transmitter (60 kHz bandwidth) requires 2000 watts; A voice only transmitter (3 kHz bandwidth) requires 100 watts. Carry this principle to extremes: An Ultra Narrow Bandwidth (UNB) transmitter (.00001 kHz bandwidth) requires .003 watts. This paper explores the advantages of using Ultra Narrow Bandwidth (UNB) in power line carrier systems. Using an Automatic Meter Reading System as an example, the authors explore how UNB allows (or sometimes requires) a change in system architecture, which creates further advantages.

  7. Global Environmental Change and Human Security

    E-Print Network [OSTI]

    Kunnas, Jan

    2011-01-01

    impacts and responses to environmental change making it anhuman security or environmental change if the lecturer isReview: Global Environmental Change and Human Security By

  8. CONFIGURATION CHANGE PROPOSAL FORM | Department of Energy

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

    CONFIGURATION CHANGE PROPOSAL FORM CONFIGURATION CHANGE PROPOSAL FORM This form is used for sharing information on Domain Name Server (DNS) changes, new requirements, modifications...

  9. Modeling Engineering Change Management Process in Virtual

    E-Print Network [OSTI]

    Akgunduz, Ali

    Modeling Engineering Change Management Process in Virtual Collaborative Design Environments Change Management - surveys and reviews - industrial case studies - tools & solutions (scarce) - change

  10. Institutional Change for Sustainability Case Studies | Department...

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

    Institutional Change for Sustainability Case Studies Institutional Change for Sustainability Case Studies These case studies show examples of institutional change successfully...

  11. Climate Change Science Institute | Clean Energy | ORNL

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

    Climate Change Science Institute SHARE Climate Change Science Institute To advance understanding of the Earth system, describe the consequences of climate change, and evaluate and...

  12. Social Empowerment Institutional Change Principle

    Broader source: Energy.gov [DOE]

    By creating a context in which workers feel empowered to take action, Federal agencies can promote behaviors and behavior changes that support their sustainability goals. When individuals and organizations believe they can reach desirable social goals, they often do—as is shown in research studies of change.

  13. Determine Institutional Change Sustainability Goals

    Broader source: Energy.gov [DOE]

    The first step in the institutional change process is defining your federal agency's sustainability goals. That is, decide what outcomes are desired (or required) over what period of time. Behavioral, organizational, and institutional changes typically are means to achieve desired energy, resource, or greenhouse gas emission outcomes. They are not ends in and of themselves.

  14. Climate Change in Chris Brierley

    E-Print Network [OSTI]

    Jones, Peter JS

    Climate Change in HadCM3 Chris Brierley Chapa Club - 21/06/06 #12;Increase in CO2 A climate forcing References Climate Change SRES Scenarios - T. C. Johns, J. M. Gregory,W. J. Ingram, C. E. Johnson, A. Jones

  15. Climate change: Flawed science, or

    E-Print Network [OSTI]

    Climate change: Fraud, Flawed science, or Fundamental dilemma? Prof Roy Thompson, FRSE #12;Fraud innovation Dilemma... Vicious Circle #12;1. Climate Change - Weather vs. climate - The greenhouse effect - Past climates 2. Impacts - Plants & animals - The seasons 3. Fundamental dilemma - Overpopulation

  16. Neutron shell structure and deformation in neutron-drip-line nuclei

    E-Print Network [OSTI]

    Ikuko Hamamoto

    2012-06-18

    Neutron shell-structure and the resulting possible deformation in the neighborhood of neutron-drip-line nuclei are systematically discussed, based on both bound and resonant neutron one-particle energies obtained from spherical and deformed Woods-Saxon potentials. Due to the unique behavior of weakly-bound and resonant neutron one-particle levels with smaller orbital angular-momenta $\\ell$, a systematic change of the shell structure and thereby the change of neutron magic-numbers are pointed out, compared with those of stable nuclei expected from the conventional j-j shell-model. For spherical shape with the operator of the spin-orbit potential conventionally used, the $\\ell_{j}$ levels belonging to a given oscillator major shell with parallel spin- and orbital-angular-momenta tend to gather together in the energetically lower half of the major shell, while those levels with anti-parallel spin- and orbital-angular-momenta gather in the upper half. The tendency leads to a unique shell structure and possible deformation when neutrons start to occupy the orbits in the lower half of the major shell. Among others, the neutron magic-number N=28 disappears and N=50 may disappear, while the magic number N=82 may presumably survive due to the large $\\ell =5$ spin-orbit splitting for the $1h_{11/2}$ orbit. On the other hand, an appreciable amount of energy gap may appear at N=16 and 40 for spherical shape, while neutron-drip-line nuclei in the region of neutron number above N=20, 40 and 82, namely N $\\approx$ 21-28, N $\\approx$ 41-54, and N $\\approx$ 83-90, may be quadrupole-deformed though the possible deformation depends also on the proton number of respective nuclei.

  17. On-Line Machine Covering Yossi Azar1

    E-Print Network [OSTI]

    Azar, Yossi

    On-Line Machine Covering Yossi Azar1 ,Leah Epstein2 1 Dept. of Computer Science, Tel of scheduling a sequence of jobs to m parallel machines as to maximize the minimum load over the machines. This situation corresponds to a case that a system which consists of the m machines is alive (i.e. productive

  18. SOUND PROPAGATION IN SLOWLY VARYING LINED FLOW DUCTS

    E-Print Network [OSTI]

    Eindhoven, Technische Universiteit

    SOUND PROPAGATION IN SLOWLY VARYING LINED FLOW DUCTS OF ARBITRARY CROSS SECTION S.W. Rienstra.w.rienstra@tue.nl November 20, 2002 Abstract Sound transmission through ducts of constant cross section with a uniform expansion, where the modes are eigenfunctions of the corresponding Laplace eigenvalue problem along a duct

  19. Federal Line Management Oversight of Department of Energy Nuclear Facilities

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

    2014-04-14

    The Guide was developed in support of DOE O 226.1B to provide guidance that may be useful to DOE line management organizations in meeting the provisions of that order when applied to nuclear facilities. Supersedes DOE G 226.1-2

  20. EA-1960: Townsite Solar Project Transmission Line, Clark County, Nevada

    Broader source: Energy.gov [DOE]

    The Bureau of Land Management, with Western Area Power Administration as a cooperating agency, prepared an EA to evaluate potential impacts of a proposal to build and operate a 180-MW photovoltaic facility; a 220, 230, or 500 kV transmission line; and associated facilities in Clark County, Nevada.