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We encourage you to perform a real-time search of NLEBeta
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1

IMPLEMENTING GROUND SOURCE HEAT PUMP AND GROUND LOOP HEAT EXCHANGER  

E-Print Network [OSTI]

IMPLEMENTING GROUND SOURCE HEAT PUMP AND GROUND LOOP HEAT EXCHANGER MODELS IN THE ENERGYPLUS #12;ii IMPLEMENTING GROUND SOURCE HEAT PUMP AND GROUND LOOP HEAT EXCHANGER MODELS IN THE ENERGYPLUS............................................................... 2 1.3. Overview of the Parameter Estimation Water-to-Water Heat Pump Model ........... 5 1

2

Ground Loops for Heat Pumps and Refrigeration  

E-Print Network [OSTI]

Ground loops are used for water source heat pumps. Refrigeration can be put on a ground loop. Water-cooled condensing units are more efficient than air-cooled, and they can be put indoors. Indoor location makes piping for desuperheater hot water...

Braud, H. J.

1986-01-01T23:59:59.000Z

3

MODELING OF VERTICAL GROUND LOOP HEAT EXCHANGERS FOR GROUND SOURCE  

E-Print Network [OSTI]

MODELING OF VERTICAL GROUND LOOP HEAT EXCHANGERS FOR GROUND SOURCE HEAT PUMP SYSTEMS By CENK SOURCE HEAT PUMP SYSTEMS Thesis Approved: ___________________________________________ Thesis Adviser scale test data. The short-term behavior of ground-coupled heat pump systems is important for the design

4

Evaluation of Analytical and Numerical Techniques for Defining the Radius of Influence for an Open-Loop Ground Source Heat Pump System  

SciTech Connect (OSTI)

In an open-loop groundwater heat pump (GHP) system, groundwater is extracted, run through a heat exchanger, and injected back into the ground, resulting in no mass balance changes to the flow system. Although the groundwater use is non-consumptive, the withdrawal and injection of groundwater may cause negative hydraulic and thermal impacts to the flow system. Because GHP is a relatively new technology and regulatory guidelines for determining environmental impacts for GHPs may not exist, consumptive use metrics may need to be used for permit applications. For consumptive use permits, a radius of influence is often used, which is defined as the radius beyond which hydraulic impacts to the system are considered negligible. In this paper, the hydraulic radius of influence concept was examined using analytical and numerical methods for a non-consumptive GHP system in southeastern Washington State. At this location, the primary hydraulic concerns were impacts to nearby contaminant plumes and a water supply well field. The results of this study showed that the analytical techniques with idealized radial flow were generally unsuited because they over predicted the influence of the well system. The numerical techniques yielded more reasonable results because they could account for aquifer heterogeneities and flow boundaries. In particular, the use of a capture zone analysis was identified as the best method for determining potential changes in current contaminant plume trajectories. The capture zone analysis is a more quantitative and reliable tool for determining the radius of influence with a greater accuracy and better insight for a non-consumptive GHP assessment.

Freedman, Vicky L.; Mackley, Rob D.; Waichler, Scott R.; Horner, Jacob A.

2013-09-26T23:59:59.000Z

5

A pre-feasibility study to assess the potential of Open Loop Ground Source Heat to heat and cool the proposed Earth Science Systems Building  

E-Print Network [OSTI]

............................................................1 1.2. History of Ground Source Heat Pump Systems................................................3 1.3. Components of Ground Source Heat Pump Systems..........................................3 1.4. Types of Ground Source Heat Pump Systems ................................................4 1.5. The Earth Systems Science

6

Chemical Looping | 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 Home5b9fcbce19 NoPublic Utilities Address: 160Benin:Energy Information on PV2009Information17.3180919°,FaultsLooping Jump

7

Open versus closed loop capacity equilibria in electricity markets ...  

E-Print Network [OSTI]

ity expansion problem in liberalized electricity markets. The first is an open loop equilibrium model, where generation companies simultaneously choose.

2012-05-06T23:59:59.000Z

8

Loop Gas Model for Open Strings  

E-Print Network [OSTI]

The open string with one-dimensional target space is formulated in terms of an SOS, or loop gas, model on a random surface. We solve an integral equation for the loop amplitude with Dirichlet and Neumann boundary conditions imposed on different pieces of its boundary. The result is used to calculate the mean values of order and disorder operators, to construct the string propagator and find its spectrum of excitations. The latter is not sensible neither to the string tension $\\L$ nor to the mass $\\mu$ of the ``quarks'' at the ends of the string. As in the case of closed strings, the SOS formulation allows to construct a Feynman diagram technique for the string interaction amplitudes.

V. Kazakov; I. Kostov

1992-05-18T23:59:59.000Z

9

Open-loop heat-recovery dryer  

DOE Patents [OSTI]

A drying apparatus is disclosed that includes a drum and an open-loop airflow pathway originating at an ambient air inlet, passing through the drum, and terminating at an exhaust outlet. A passive heat exchanger is included for passively transferring heat from air flowing from the drum toward the exhaust outlet to air flowing from the ambient air inlet toward the drum. A heat pump is also included for actively transferring heat from air flowing from the passive heat exchanger toward the exhaust outlet to air flowing from the passive heat exchanger toward the drum. A heating element is also included for further heating air flowing from the heat pump toward the drum.

TeGrotenhuis, Ward Evan

2013-11-05T23:59:59.000Z

10

Ground Source Heat Pump Sub-Slab Heat Exchange Loop Performance in a Cold Climate  

SciTech Connect (OSTI)

This report presents a cold-climate project that examines an alternative approach to ground source heat pump (GSHP) ground loop design. The innovative ground loop design is an attempt to reduce the installed cost of the ground loop heat exchange portion of the system by containing the entire ground loop within the excavated location beneath the basement slab. Prior to the installation and operation of the sub-slab heat exchanger, energy modeling using TRNSYS software and concurrent design efforts were performed to determine the size and orientation of the system. One key parameter in the design is the installation of the GSHP in a low-load home, which considerably reduces the needed capacity of the ground loop heat exchanger. This report analyzes data from two cooling seasons and one heating season. Upon completion of the monitoring phase, measurements revealed that the initial TRNSYS simulated horizontal sub-slab ground loop heat exchanger fluid temperatures and heat transfer rates differed from the measured values. To determine the cause of this discrepancy, an updated model was developed utilizing a new TRNSYS subroutine for simulating sub-slab heat exchangers. Measurements of fluid temperature, soil temperature, and heat transfer were used to validate the updated model.

Mittereder, N.; Poerschke, A.

2013-11-01T23:59:59.000Z

11

A study of the augmented Lagrangian method for open loop and closed loop constrained multibody dynamic systems  

E-Print Network [OSTI]

The primary objective of this thesis is to study the augmented Lagrangian method for open and closed loop constrained multibody dynamic systems. Much research has been carried out for the performance of the augmented Lagrangian formulation for open...

Webb, Glenn Viktor

2012-06-07T23:59:59.000Z

12

Ground-state energy of pionic hydrogen to one loop  

E-Print Network [OSTI]

We investigate the ground-state energy of the pi- p atom (pionic hydrogen) in the framework of QCD+QED. In particular, we evaluate the strong energy-level shift. We perform the calculation at next-to-leading order in the low-energy expansion in the framework of the relevant effective field theory. The result provides a relation between the strong energy shift and the pion-nucleon S-wave scattering lengths - evaluated in pure QCD - at next-to-leading order in isospin breaking and in the low-energy expansion. We compare our result with available model calculations.

J. Gasser; M. A. Ivanov; E. Lipartia; M. Mojzis; A. Rusetsky

2002-08-16T23:59:59.000Z

13

Ground Electromagnetic Techniques | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.Groom Energy SolutionsGround

14

Ground Gravity Survey | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004)EnergyGround Gravity

15

Ground Magnetics (Nannini, 1986) | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004)EnergyGround

16

Ground Source Heat Pumps | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986)EnergyOpenPumps

17

SEQUENTIAL OPEN-LOOP SCHEDULING STRATEGIES P. Nash, R.R. Weber  

E-Print Network [OSTI]

-optimal, scheduling strategies. This new approach is based on the notion of sequential open-loop control, sometimesSEQUENTIAL OPEN-LOOP SCHEDULING STRATEGIES P. Nash, R.R. Weber Cambridge University ABSTRACT For certain scheduling problems wi th pre-emptive processing, a dynamic programming formulation reduces

Weber, Richard

18

Laser Safety Method For Duplex Open Loop Parallel Optical Link  

DOE Patents [OSTI]

A method and apparatus are provided to ensure that laser optical power does not exceed a "safe" level in an open loop parallel optical link in the event that a fiber optic ribbon cable is broken or otherwise severed. A duplex parallel optical link includes a transmitter and receiver pair and a fiber optic ribbon that includes a designated number of channels that cannot be split. The duplex transceiver includes a corresponding transmitter and receiver that are physically attached to each other and cannot be detached therefrom, so as to ensure safe, laser optical power in the event that the fiber optic ribbon cable is broken or severed. Safe optical power is ensured by redundant current and voltage safety checks.

Baumgartner, Steven John (Zumbro Falls, MN); Hedin, Daniel Scott (Rochester, MN); Paschal, Matthew James (Rochester, MN)

2003-12-02T23:59:59.000Z

19

Optimal open-loop and feedback control of spacecraft using single gimbal control moment gyroscopes  

E-Print Network [OSTI]

OPTIMAL OPEN-LOOP AND FEEDBACK CONTROL OF SPACECRAFT USING SINGLE GIMBAL CONTROL MOMENT GYROSCOPES A Thesis by Brian Ray Hoelscher Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1992 Major Subject: Aerospace Engineering OPTIMAL OPEN-LOOP AND FEEDBACK CONTROL OF SPACECRAFT USING SINGLE GIMBAL CONTROL MOMENT GYROSCOPES A Thesis by Brian Ray Hoelscher Approved as to style and content by...

Hoelscher, Brian Ray

2012-06-07T23:59:59.000Z

20

Dynamically Feasible Trajectory and Open-Loop Control Design for Unmanned Airships  

E-Print Network [OSTI]

Fig. 1, belong to the category of Unmanned Air Vehicles (UAVs) that play an increasingly significant the problem of trajectory planning for an Autonomous Underwater Vehicle. In this paper, we describe a methodDynamically Feasible Trajectory and Open-Loop Control Design for Unmanned Airships Filoktimon

Papadopoulos, Evangelos

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Identification and open loop control of a simulated flexible space structure experimentally verified with a real flexible structure  

E-Print Network [OSTI]

IDENTIFICATION A. ND OPEN LOOP CONTROL OF A SIMULATED FLEXIBLE SPACE STRUCTURE EXPERIMENTALLY VERIFIED WITH A REAL FLEXIBLE STRUCTURE A Thesis by STEPHEN ERIC MORGAN Submitted to the Office of Graduate Studies of Texas ASSAM University... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1989 Major Subject: Aerospace Engineering IDENTIFICATION AND OPEN LOOP CONTROL OF A SIMULATED FLEXIBLE SPACE STRUCTURE EXPERIMENTALLY VERIFIED WITH A REAL FLEXIBLE...

Morgan, Stephen Eric

1989-01-01T23:59:59.000Z

22

Coherent open-loop optimal control of light-harvesting dynamics  

E-Print Network [OSTI]

We apply theoretically open-loop quantum optimal control techniques to provide methods for the verification of various quantum coherent transport mechanisms in natural and artificial light-harvesting complexes under realistic experimental constraints. We demonstrate that optimally shaped laser pulses allow to faithfully prepare the photosystem in specified initial states (such as localized excitation or coherent superposition, i.e. propagating and non-propagating states) and to probe efficiently the dynamics. These results provide a path towards the discrimination of the different transport pathways and to the characterization of environmental properties, enhancing our understanding of the role that coherent processes may play in biological complexes.

Filippo Caruso; Simone Montangero; Tommaso Calarco; Susana F. Huelga; Martin B. Plenio

2011-03-04T23:59:59.000Z

23

Ground Gravity Survey At Marysville Mt Area (Blackwell) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | Open EnergyOpenInformation

24

Ground Magnetics At Chena Geothermal Area (Kolker, 2008) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986) | Open

25

Category:Ground Gravity Survey | 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 Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascadeJump to: navigation,Areas Jump to:Jump to:Ground

26

Ground Magnetics At Alum Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

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27

Ground Magnetics At Coso Geothermal Area (1984) | Open Energy Information  

Open Energy Info (EERE)

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28

Ground Gravity Survey At Mokapu Penninsula Area (Thomas, 1986) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004) | OpenEnergy

29

Ground Magnetics At Raft River Geothermal Area (1979) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information -Open2007) |

30

Open-loop control of compressible afterbody flows using adjoint methods Philippe Meliga, Denis Sipp, and Jean-Marc Chomaz  

E-Print Network [OSTI]

Open-loop control of compressible afterbody flows using adjoint methods Philippe Meliga, Denis Sipp.1063/1.4846916 Stability of transonic characteristic discontinuities in two-dimensional steady compressible Euler flows J-shaped cylinder using global stability Phys. Fluids 24, 061701 (2012); 10.1063/1.4724211 Transient growth

Boyer, Edmond

31

Ground Gravity Survey At Raft River Geothermal Area (1957-1961) | Open  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround Gravity

32

Ground Gravity Survey At San Emidio Desert Area (DOE GTP) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround

33

Development of an integrated building load and ground source heat pump model to assess heat pump and ground loop design and performance in a commercial office building.  

E-Print Network [OSTI]

??Ground source heat pumps (GSHPs) offer an efficient method for cooling and heating buildings, reducing energy usage and operating cost. In hot, arid regions such… (more)

Blair, Jacob Dale

2014-01-01T23:59:59.000Z

34

Ground Gravity Survey At New River Area (DOE GTP) | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround Gravity Survey At

35

Ground Gravity Survey At Snake River Plain Region (DOE GTP) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGroundInformation

36

Open-loop control of noise amplification in a separated boundary layer flow  

SciTech Connect (OSTI)

Linear optimal gains are computed for the subcritical two-dimensional separated boundary-layer flow past a bump. Very large optimal gain values are found, making it possible for small-amplitude noise to be strongly amplified and to destabilize the flow. The optimal forcing is located close to the summit of the bump, while the optimal response is the largest in the shear layer. The largest amplification occurs at frequencies corresponding to eigenvalues which first become unstable at higher Reynolds number. Nonlinear direct numerical simulations show that a low level of noise is indeed sufficient to trigger random flow unsteadiness, characterized here by large-scale vortex shedding. Next, a variational technique is used to compute efficiently the sensitivity of optimal gains to steady control (through source of momentum in the flow, or blowing/suction at the wall). A systematic analysis at several frequencies identifies the bump summit as the most sensitive region for control with wall actuation. Based on these results, a simple open-loop control strategy is designed, with steady wall suction at the bump summit. Linear calculations on controlled base flows confirm that optimal gains can be drastically reduced at all frequencies. Nonlinear direct numerical simulations also show that this control allows the flow to withstand a higher level of stochastic noise without becoming nonlinearly unstable, thereby postponing bypass transition. In the supercritical regime, sensitivity analysis of eigenvalues supports the choice of this control design. Full restabilization of the flow is obtained, as evidenced by direct numerical simulations and linear stability analysis.

Boujo, E., E-mail: edouard.boujo@epfl.ch; Gallaire, F., E-mail: francois.gallaire@epfl.ch [Laboratory of Fluid Mechanics and Instabilities, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne (Switzerland); Ehrenstein, U., E-mail: ehrenstein@irphe.univ-mrs.fr [Aix Marseille Université, CNRS, Centrale Marseille, IRPHE UMR 7342, F-13384 Marseille (France)

2013-12-15T23:59:59.000Z

37

Belgian experience in applying the {open_quotes}leak-before-break{close_quotes} concept to the primary loop piping  

SciTech Connect (OSTI)

The Leak Before Break (LBB) concept allows to eliminate from the design basis the double-ended guillotine break of the primary loop piping, provided it can be demonstrated by a fracture mechanics analysis that a through-wall flaw, of a size giving rise to a leakage still well detectable by the plant leak detection systems, remains stable even under accident conditions (including the Safe Shutdown Earthquake (SSE)). This concept was successfully applied to the primary loop piping of several Belgian Pressurized Water Reactor (PWR) units, operated by the Utility Electrabel. One of the main benefits is to permit justification of supports in the primary loop and justification of the integrity of the reactor pressure vessel and internals in case of a Loss Of Coolant Accident (LOCA) in stretch-out conditions. For two of the Belgian PWR units, the LBB approach also made it possible to reduce the number of large hydraulic snubbers installed on the primary coolant pumps. Last but not least, the LBB concept also facilitates the steam generator replacement operations, by eliminating the need for some pipe whip restraints located close to the steam generator. In addition to the U.S. regulatory requirements, the Belgian safety authorities impose additional requirements which are described in details in a separate paper. An novel aspect of the studies performed in Belgium is the way in which residual loads in the primary loop are taken into account. Such loads may result from displacements imposed to close the primary loop in a steam generator replacement operation, especially when it is performed using the {open_quote}two cuts{close_quotes} technique. The influence of such residual loads on the LBB margins is discussed in details and typical results are presented.

Gerard, R.; Malekian, C.; Meessen, O. [Tractebel Energy Engineering, Brussels (Belgium)

1997-04-01T23:59:59.000Z

38

Decamethylytterbocene complexes of bipyridines and diazabutadines: multiconfigurational ground states and open-shell singlet formation  

SciTech Connect (OSTI)

Partial ytterbium f-orbital occupancy (i.e. intermediate valence) and open-shell singlet Draft 12/formation are established for a variety of bipyridine and diazabutadiene adducts to decamethylytterbocene, (C{sub 5}Me{sub 5}){sub 2}Yb or Cp*{sub 2}Yb. Data used to support this claim includes ytterbium valence measurements using Yb Lm-edge x-ray absorption near-edge structure (XANES) spectroscopy, magnetic susceptibility and Complete Active Space Self-Consistent Field (CASSCF) multi configurational calculations, as well as structural measurements compared to density-functional theory (DFT) calculations. The CASSCF calculations indicate that the intermediate valence is the result of a multiconfigurational ground state wave function that has both an open-shell singlet f{sup 13} and a closed-shell singlet f{sup 14} component. A number of other competing theories for the unusual magnetism in these materials are ruled out by the presence of intermediate valence and its lack of any significant temperature dependence. These results have implications for understanding chemical bonding not only in organolanthanide complexes, but also for organometallic chemistry in general, as well as understanding magnetic interactions in nanopartic1es and devices.

Bauer, Eric D [Los Alamos National Laboratory; Booth, C H [LBNL; Walter, M D [LBNL; Kazhdan, D [LBNL; Hu, Y - J [LBNL; Lukens, Wayne [LBNL; Maron, Laurent [INSA TOULOUSE; Eisentein, Odile [UNIV MONTPELLIER 2; Anderson, Richard [LBNL

2009-01-01T23:59:59.000Z

39

Decamethylytterbocene Complexes of Bipyridines and Diazabutadienes: Multiconfigurational Ground States and Open-Shell Singlet Formation  

SciTech Connect (OSTI)

Partial ytterbium f-orbital occupancy (i.e., intermediate valence) and open-shell singlet formation are established for a variety of bipyridine and diazabutadiene adducts with decamethylytterbocene, (C5Me5)2Yb, abbreviated as Cp*2Yb. Data used to support this claim include ytterbium valence measurements using Yb LIII-edge X-ray absorption near-edge structure spectroscopy, magnetic susceptibility, and complete active space self-consistent field (CASSCF) multiconfigurational calculations, as well as structural measurements compared to density functional theory calculations. The CASSCF calculations indicate that the intermediate valence is the result of a multiconfigurational ground-state wave function that has both an open-shell singlet f13(?*)1, where pi* is the lowest unoccupied molecular orbital of the bipyridine or dpiazabutadiene ligands, and a closed-shell singlet f14 component. A number of other competing theories for the unusual magnetism in these materials are ruled out by the lack of temperature dependence of the measured intermediate valence. These results have implications for understanding chemical bonding not only in organolanthanide complexes but also for f-element chemistry in general, as well as understanding magnetic interactions in nanoparticles and devices.

Booth, Corwin H.; Walter, Marc D.; Kazhdan, Daniel; Hu, Yung-Jin; Lukens, Wayne W.; Bauer, Eric D.; Maron, Laurent; Eisenstein, Odile; Andersen, Richard A.

2009-04-22T23:59:59.000Z

40

Herpetological Review 36(3), 2005 277 in pipe-traps inserted upright into the ground, placed open-ended  

E-Print Network [OSTI]

Herpetological Review 36(3), 2005 277 in pipe-traps inserted upright into the ground, placed open, Tregger 2004) similar pipe-trap designs have not succeeded in capturing large numbers of treefrogs. The large number of captures reported in this study indicate that this new pipe-trap design may be more

Johnson, Michele A.

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Advanced Ground Source Heat Pump Technology for Very-Low-Energy...  

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

loop designs being evaluated for their ground loop cost reduction potential
Credit: Oak Ridge National Lab Three newunder-utilized ground loop designs being evaluated for...

42

A numerical simulation tool for multilayer grounding analysis integrated in an open-source CAD interface  

E-Print Network [OSTI]

of the challenges of the electrical engineers and designers since the beginning of the large-scale harnessing-source platform 1. Introduction Obtaining the distribution of potential levels of an earthing system has been one of electricity. Thus, the grounded electrode dissipates the electrical currents generated during a fault

Colominas, Ignasi

43

Ground Gravity Survey At Maui Area (DOE GTP) | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004) | Open EnergyOpen|Maui

44

Ground Magnetics At Chocolate Mountains Area (Alm, Et Al., 2010) | Open  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986) | OpenEnergy

45

Ground Gravity Survey At Mcgee Mountain Area (DOE GTP) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004) | Open

46

Ground Magnetics At San Emidio Desert Area (DOE GTP) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information -Open2007)

47

Ground Magnetics At Silver Peak Area (DOE GTP) | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information -Open2007)2004)

48

Loop Representations  

E-Print Network [OSTI]

The loop representation plays an important role in canonical quantum gravity because loop variables allow a natural treatment of the constraints. In these lectures we give an elementary introduction to (i) the relevant history of loops in knot theory and gauge theory, (ii) the loop representation of Maxwell theory, and (iii) the loop representation of canonical quantum gravity. (Based on lectures given at the 117. Heraeus Seminar, Bad Honnef, Sept. 1993)

B. Bruegmann

1993-12-02T23:59:59.000Z

49

Open-cycle magnetohydrodynamic power plant based upon direct-contact closed-loop high-temperature heat exchanger  

DOE Patents [OSTI]

A magnetohydrodynamic (MHD) power generating system in which ionized combustion gases with slag and seed are discharged from an MHD combustor and pressurized high temperature inlet air is introduced into the combustor for supporting fuel combustion at high temperatures necessary to ionize the combustion gases, and including a heat exchanger in the form of a continuous loop with a circulating heat transfer liquid such as copper oxide. The heat exchanger has an upper horizontal channel for providing direct contact between the heat transfer liquid and the combustion gases to cool the gases and condense the slag which thereupon floats on the heat transfer liquid and can be removed from the channel, and a lower horizontal channel for providing direct contact between the heat transfer liquid and pressurized air for preheating the inlet air. The system further includes a seed separator downstream of the heat exchanger.

Berry, Gregory F. (Naperville, IL); Minkov, Vladimir (Skokie, IL); Petrick, Michael (Joliet, IL)

1988-01-01T23:59:59.000Z

50

Open-cycle magnetohydrodynamic power plant based upon direct-contact closed-loop high-temperature heat exchanger  

DOE Patents [OSTI]

A magnetohydrodynamic (MHD) power generating system is described in which ionized combustion gases with slag and seed are discharged from an MHD combustor and pressurized high temperature inlet air is introduced into the combustor for supporting fuel combustion at high temperatures necessary to ionize the combustion gases, and including a heat exchanger in the form of a continuous loop with a circulating heat transfer liquid such as copper oxide. The heat exchanger has an upper horizontal channel for providing direct contact between the heat transfer liquid and the combustion gases to cool the gases and condense the slag which thereupon floats on the heat transfer liquid and can be removed from the channel, and a lower horizontal channel for providing direct contact between the heat transfer liquid and pressurized air for preheating the inlet air. The system further includes a seed separator downstream of the heat exchanger.

Berry, G.F.; Minkov, V.; Petrick, M.

1981-11-02T23:59:59.000Z

51

Loop Quantum Gravity Phenomenology: Linking Loops to Observational Physics  

E-Print Network [OSTI]

Research during the last decade demonstrates that effects originating on the Planck scale are currently being tested in multiple observational contexts. In this review we discuss quantum gravity phenomenological models and their possible links to loop quantum gravity. Particle frameworks, including kinematic models, broken and deformed Poincar\\'e symmetry, non-commutative geometry, relative locality and generalized uncertainty principle, and field theory frameworks, including Lorentz violating operators in effective field theory and non-commutative field theory, are discussed. The arguments relating loop quantum gravity to models with modified dispersion relations are reviewed, as well as, arguments supporting the preservation of local Lorentz invariance. The phenomenology related to loop quantum cosmology is briefly reviewed, with a focus on possible effects that might be tested in the near future. As the discussion makes clear, there remains much interesting work to do in establishing the connection between the fundamental theory of loop quantum gravity and these specific phenomenological models, in determining observational consequences of the characteristic aspects of loop quantum gravity, and in further refining current observations. Open problems related to these developments are highlighted. characteristic aspects of loop quantum gravity, and in further refining current observations. Open problems related to these developments are highlighted.

Florian Girelli; Franz Hinterleitner; Seth A. Major

2012-12-13T23:59:59.000Z

52

Ground-Coupled Heat Pump Applications and Case Studies  

E-Print Network [OSTI]

The paper presents an overview of ground loops for space-conditioning heat pumps, hot water, ice machines, and water-cooled refrigeration in residential and commercial applications. In Louisiana, a chain of hamburger drive-ins uses total ground...

Braud, H. J.

1989-01-01T23:59:59.000Z

53

Shielding and grounding in large detectors  

SciTech Connect (OSTI)

Prevention of electromagnetic interference (EMI), or ``noise pickup,`` is an important design aspect in large detectors in accelerator environments. Shielding effectiveness as a function of shield thickness and conductivity vs the type and frequency of the interference field is described. Noise induced in transmission lines by ground loop driven currents in the shield is evaluated and the importance of low shield resistance is emphasized. Some measures for prevention of ground loops and isolation of detector-readout systems are discussed.

Radeka, V.

1998-09-01T23:59:59.000Z

54

Ground Water Ground Sky Sky Water Vegetation Ground Vegetation Water  

E-Print Network [OSTI]

Bear Snow Vegetation RhinoWater Vegetation Ground Water Ground Sky Sky Rhino Water Vegetation Ground Vegetation Water Rhino Water Vegetation Ground Rhino Water Rhino Water Ground Ground Vegetation Water Rhino Vegetation Rhino Vegetation Ground Rhino Vegetation Ground Sky Rhino Vegetation Ground Sky

Chen, Tsuhan

55

Ground Magnetics | 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 Office of InspectorConcentrating Solar Power BasicsGermany: Energy ResourcesNewsInformation Grid-ConnectedGridLab

56

Testing of a loop heat pipe experimental apparatus under varied acceleration.  

E-Print Network [OSTI]

??An experimental apparatus was designed and fabricated to test a Loop Heat Pipe under varied acceleration. The experiment consisted of both flight and ground testing… (more)

Kurwitz, Richard Cable

2012-01-01T23:59:59.000Z

57

Quantum loop programs  

E-Print Network [OSTI]

Loop is a powerful program construct in classical computation, but its power is still not exploited fully in quantum computation. The exploitation of such power definitely requires a deep understanding of the mechanism of quantum loop programs. In this paper, we introduce a general scheme of quantum loops and describe its computational process. The notions of termination and almost termination are proposed for quantum loops, and the function computed by a quantum loop is defined. To show their expressive power, quantum loops are applied in describing quantum walks. Necessary and sufficient conditions for termination and almost termination of a general quantum loop on any mixed input state are presented. A quantum loop is said to be (almost) terminating if it (almost) terminates on any input state. We show that a quantum loop is almost terminating if and only if it is uniformly almost terminating. It is observed that a small disturbance either on the unitary transformation in the loop body or on the measurement in the loop guard can make any quantum loop (almost) terminating. Moreover, a representation of the function computed by a quantum loop is given in terms of finite summations of matrices. To illustrate the notions and results obtained in this paper, two simplest classes of quantum loop programs, one qubit quantum loops, and two qubit quantum loops defined by controlled gates, are carefully examined.

Mingsheng Ying; Yuan Feng

2007-01-04T23:59:59.000Z

58

Fast flux locked loop  

DOE Patents [OSTI]

A flux locked loop for providing an electrical feedback signal, the flux locked loop employing radio-frequency components and technology to extend the flux modulation frequency and tracking loop bandwidth. The flux locked loop of the present invention has particularly useful application in read-out electronics for DC SQUID magnetic measurement systems, in which case the electrical signal output by the flux locked loop represents an unknown magnetic flux applied to the DC SQUID.

Ganther, Jr., Kenneth R. (Olathe, KS); Snapp, Lowell D. (Independence, MO)

2002-09-10T23:59:59.000Z

59

BY SHAWN XU, Ph.D. Ground Source Heat Pumps Serve  

E-Print Network [OSTI]

BY SHAWN XU, Ph.D. 1 Ground Source Heat Pumps Serve A Large; BY SHAWN XU, Ph.D. 7 Loop Func>ons § Seasonal storage (Single output) § Hourly buffering (Dual output) #12; BY SHAWN XU, Ph.D. 8 Ground Loops § Ground

60

Optimizing Nested Loops with Loop Distribution and Loop Fusion Department of Computer Science and Engineering  

E-Print Network [OSTI]

nodes so that the loop nodes inside one partition can be fused directly without transformation. Maximum and the power consumption [1, 5, 7, 8]. Direct loop fusion is to find the legal fusion partition of the loop of the fused loops is minimized. Loop distribution separates independent statements inside a single loop (or

Sha, Edwin

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Elimination of Radio-Frequency Noise by Identifying and Diverting Large RF Ground Currents  

SciTech Connect (OSTI)

The problem of electromagnetic interference in scientific instruments is compounded for high-power plasma experiments by the large currents and voltages as well as by the broad bandwidths of the instruments. Ground loops are known to allow stray magnetic fields to drive large ground currents that can induce spurious signals and damage electronics. Furthermore, even when a ground loop is broken, capacitive coupling can still permit the flow of radio-frequency current, resulting in high-frequency spurious signals that can overwhelm the desired signal. We present the effects of RF ground loops on the output of vacuum photodiodes used in the Caltech Solar Loop Experiment and demonstrate the elimination of the spurious signals by diverting the ground currents away from the most vulnerable point of the signal line. Techniques for identifying the RF ground loops are also discussed. These techniques should be valuable in many high-power systems where interference from spurious coupling is an issue.

Perkins, R. J.; Bellan, P. M. [Applied Physics, California Institute of Technology (United States)

2011-12-23T23:59:59.000Z

62

The Expanding Dairy Industry: Impact on Ground Water Quality and Quantity with Emphasis on Waste Management System Evaluation for Open Lot Dairies  

E-Print Network [OSTI]

manner that is similar to practices in the desert Southwest. Typical animal spacings in open lots are 56 m2 (600 square feet) pa cow. Large amounts of water are used for manure removal and milk sanitation, resulting in significant volumes of process...

Sweeten, John M.; Wolfe, Mary Leigh

63

Train-the-Trainer As ground source heat  

E-Print Network [OSTI]

Train-the-Trainer As ground source heat pumps capture more of the HVAC market, the need will also receive a copy of the Closed-Loop/ Ground- Source Heat Pump Systems Installation Guide · Soils and Rock Identification · Pump and Fluid Selection Registration information You must be an IGSHPA

64

Connecting PHP and PHP Loops  

E-Print Network [OSTI]

Connecting PHP and MySQL 1 #12;Outline · PHP Loops · PHPMyAdmin · Introducing SQL · Connecting Database from PHP · Exercises 2 #12;Loops · A loop statement is a control structure that repeatedly PHP supports the C style while loop ­ The body of the cycle

Graham, Nick

65

Testing of a loop heat pipe experimental apparatus under varied acceleration  

E-Print Network [OSTI]

An experimental apparatus was designed and fabricated to test a Loop Heat Pipe under varied acceleration. The experiment consisted of both flight and ground testing as well as comparisons to a model developed from models found in literature...

Kurwitz, Richard Cable

1997-01-01T23:59:59.000Z

66

Two-loop self-energy correction in high-Z hydrogen-like ions  

E-Print Network [OSTI]

A complete evaluation of the two-loop self-energy diagrams to all orders in Z\\alpha is presented for the ground state of H-like ions with Z\\ge 40.

V. A. Yerokhin; P. Indelicato; V. M. Shabaev

2003-02-28T23:59:59.000Z

67

NETL - Chemical Looping Reactor  

ScienceCinema (OSTI)

NETL's Chemical Looping Reactor unit is a high-temperature integrated CLC process with extensive instrumentation to improve computational simulations. A non-reacting test unit is also used to study solids flow at ambient temperature. The CLR unit circulates approximately 1,000 pounds per hour at temperatures around 1,800 degrees Fahrenheit.

None

2014-06-26T23:59:59.000Z

68

ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase...  

Open Energy Info (EERE)

ICFT- An Initial Closed-Loop Flow Test of the Fenton Hill Phase II HDR Reservoir Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: ICFT- An Initial...

69

Warm or Steaming Ground | 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 CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov PtyInformationSEDS data JumpWakullaWanxiang ElectricFacility | Openor Steaming

70

Ground Electromagnetic Techniques | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.Groom Energy

71

Ground Source Heat Pumps | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar,

72

Grounded Renewable Energy | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar,Management District

73

GroundedPower Inc | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar,Management

74

Colorado Ground Water Commission | 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 Office of InspectorConcentrating SolarElectricEnergyCTBarreisVolcanicPowerRaft River 5 MWCommission|

75

Category:Ground Magnetics | 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 Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascadeJump to: navigation,Areas Jump to:Jump

76

Chemical Looping Combustion Kinetics  

SciTech Connect (OSTI)

One of the most promising methods of capturing CO{sub 2} emitted by coal-fired power plants for subsequent sequestration is chemical looping combustion (CLC). A powdered metal oxide such as NiO transfers oxygen directly to a fuel in a fuel reactor at high temperatures with no air present. Heat, water, and CO{sub 2} are released, and after H{sub 2}O condensation the CO{sub 2} (undiluted by N{sub 2}) is ready for sequestration, whereas the nickel metal is ready for reoxidation in the air reactor. In principle, these processes can be repeated endlessly with the original nickel metal/nickel oxide participating in a loop that admits fuel and rejects ash, heat, and water. Our project accumulated kinetic rate data at high temperatures and elevated pressures for the metal oxide reduction step and for the metal reoxidation step. These data will be used in computational modeling of CLC on the laboratory scale and presumably later on the plant scale. The oxygen carrier on which the research at Utah is focused is CuO/Cu{sub 2}O rather than nickel oxide because the copper system lends itself to use with solid fuels in an alternative to CLC called 'chemical looping with oxygen uncoupling' (CLOU).

Edward Eyring; Gabor Konya

2009-03-31T23:59:59.000Z

77

Comparison of energy efficiency between variable refrigerant flow systems and ground source heat pump systems  

E-Print Network [OSTI]

tool for geothermal water loop heat pump systems, 9thInternational IEA Heat Pump Conference, Zürich, Switzerland,Performance of ground source heat pump system in a near-zero

Hong, Tainzhen

2010-01-01T23:59:59.000Z

78

Ground and Water Source Heat Pump Performance and Design for Southern Climates  

E-Print Network [OSTI]

Ground and water source heat pump systems have very attractive performance characteristics when properly designed and installed. These systems typically consist of a water-to-air or water-to-water heat pump linked to a closed loop vertical...

Kavanaugh, S.

1988-01-01T23:59:59.000Z

79

Coupled dual loop absorption heat pump  

DOE Patents [OSTI]

A coupled dual loop absorption system which utilizes two separate complete loops. Each individual loop operates at three temperatures and two pressures. This low temperature loop absorber and condenser are thermally coupled to the high temperature loop evaporator, and the high temperature loop condenser and absorber are thermally coupled to the low temperature generator.

Sarkisian, Paul H. (Watertown, MA); Reimann, Robert C. (Lafayette, NY); Biermann, Wendell J. (Fayetteville, NY)

1985-01-01T23:59:59.000Z

80

Ground state hyperfine structure in muonic lithium ions  

E-Print Network [OSTI]

On the basis of perturbation theory in fine structure constant alpha and the ratio of electron to muon masses we calculate one-loop vacuum polarization, electron vertex corrections, nuclear structure and recoil corrections to hyperfine splitting of the ground state in muonic lithium ions $(\\mu\\ e\\ ^6_3Li)^+$ and $(\\mu\\ e\\ ^7_3Li)^+$. We obtain total results for the ground state small hyperfine splittings in $(\\mu\\ e\\ ^6_3Li)^+$ $\\Delta\

A. P. Martynenko; A. A. Ulybin

2014-11-21T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Predaceous Ground Beetles  

E-Print Network [OSTI]

Predaceous Ground Beetles Caterpillar Hunters and Bombardier Beetles Rick Minzenmayer, Extension Agent-IPM Chris Sansone, Extension Entomologist Texas Cooperative Extension genus Calosoma, a brightly colored ground beetle. Some species are called...

Sansone, Chris; Minzenmayer, Rick

2003-06-30T23:59:59.000Z

82

Ground Turkey Stroganoff Ingredients  

E-Print Network [OSTI]

Ground Turkey Stroganoff Ingredients: 8 ounces egg noodles, uncooked 1 pound ground turkey 1 onion. Meanwhile, brown ground turkey and onions in non stick skillet until meat is no longer pink and onions cup of egg noodles on plate, top with 1/2 cup of turkey mixture. Equipment: Knife Cutting board

Liskiewicz, Maciej

83

Dynamic PID loop control  

E-Print Network [OSTI]

The Horizontal Test Stand (HTS) SRF Cavity and Cryomodule 1 (CM1) of eight 9-cell, 1.3GHz SRF cavities are operating at Fermilab. For the cryogenic control system, how to hold liquid level constant in the cryostat by regulation of its Joule-Thompson JT-valve is very important after cryostat cool down to 2.0 K. The 72-cell cryostat liquid level response generally takes a long time delay after regulating its JT-valve; therefore, typical PID control loop should result in some cryostat parameter oscillations. This paper presents a type of PID parameter self-optimal and Time-Delay control method used to reduce cryogenic system parameters' oscillation.

Pei, L; Theilacker, J; Soyars, W; Martinez, A; Bossert, R; DeGraff, B; Darve, C

2012-01-01T23:59:59.000Z

84

Dynamic PID loop control  

SciTech Connect (OSTI)

The Horizontal Test Stand (HTS) SRF Cavity and Cryomodule 1 (CM1) of eight 9-cell, 1.3GHz SRF cavities are operating at Fermilab. For the cryogenic control system, how to hold liquid level constant in the cryostat by regulation of its Joule-Thompson JT-valve is very important after cryostat cool down to 2.0 K. The 72-cell cryostat liquid level response generally takes a long time delay after regulating its JT-valve; therefore, typical PID control loop should result in some cryostat parameter oscillations. This paper presents a type of PID parameter self-optimal and Time-Delay control method used to reduce cryogenic system parameters oscillation.

Pei, L.; Klebaner, A.; Theilacker, J.; Soyars, W.; Martinez, A.; Bossert, R.; DeGraff, B.; Darve, C.; /Fermilab

2011-06-01T23:59:59.000Z

85

Cooking with Ground Pork  

E-Print Network [OSTI]

to thaw. Even when cooked, pork that has been thawed at room temperature can make you sick. Cooking ground pork safely For dishes that contain ground pork, cook the pork before mixing it with other ingredients. How to store cooked ground pork Leftover... dishes made with ground pork should be stored in a covered dish in the refrigerator right away to prevent spoilage. Use it within 3 days. Reheat foods with ground pork until they are steaming hot, bubbling, or at 165 degrees. Other uses Use cooked...

Anding, Jenna

2008-12-09T23:59:59.000Z

86

Ground Water Management Act (Virginia)  

Broader source: Energy.gov [DOE]

Under the Ground Water Management Act of 1992, Virginia manages ground water through a program regulating the withdrawals in certain areas called Ground Water Management Areas (GWMA). Currently,...

87

Sodium loop framework structural analysis  

SciTech Connect (OSTI)

This document provides the structural analysis of the Sodium Loop framework in a drop condition. The drop is similar to the US Department of Transportation non-bulk, performance-oriented packaging (Packaging Group I) drop test. The drop height evaluated for the Sodium Loop framework is 5.9 ft.

Nguyen, P.M.

1995-06-06T23:59:59.000Z

88

Thermoelectric Power Generation System with Loop Thermosyphon...  

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

Power Generation System with Loop Thermosyphon in Future High Efficiency Hybrid Vehicles Thermoelectric Power Generation System with Loop Thermosyphon in Future High Efficiency...

89

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 3, is a users manual and an installation and validation manual for the computer program SGSYS (Substation Grounding SYStem Analysis Program). This program analyzes the substation ground field given the total electric current injected into the ground field and the design of the grounding system. Standard outputs of the program are (1) total ground resistance, (2) step voltage, (3) touch voltage, (4) voltages on a grid of points, (5) voltage profile along straight lines, (6) transfer voltages, (7) ground potential rise, (8) body currents, (9) step voltage profile along straight lines, and (10) touch voltage profile along straight lines. This program can be utilized in an interactive or batch mode. In the interactive mode, the user defines the grounding system geometry, soil parameters, and output requests interactively, with the use of a user friendly conversational program. The users manual describes data requirements and data preparation procedures. An appendix provides forms which facilitate data collection procedures. The installation and validation manual describes the computer files which make up the program SGSYS and provides a test case for validation purposes.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

90

Cooking with Ground Beef  

E-Print Network [OSTI]

This fact sheet describes the nutritional value and safe storage of ground beef, a commodity food. It also offers food preparation ideas....

Anding, Jenna

2008-12-09T23:59:59.000Z

91

Pair Correlation Function of Wilson Loops  

E-Print Network [OSTI]

We give a path integral prescription for the pair correlation function of Wilson loops lying in the worldvolume of Dbranes in the bosonic open and closed string theory. The results can be applied both in ordinary flat spacetime in the critical dimension d or in the presence of a generic background for the Liouville field. We compute the potential between heavy nonrelativistic sources in an abelian gauge theory in relative collinear motion with velocity v = tanh(u), probing length scales down to r_min^2 = 2 \\pi \\alpha' u. We predict a universal -(d-2)/r static interaction at short distances. We show that the velocity dependent corrections to the short distance potential in the bosonic string take the form of an infinite power series in the dimensionless variables z = r_min^2/r^2, uz/\\pi, and u^2.

S. Chaudhuri; Y. Chen; E. Novak

2000-02-02T23:59:59.000Z

92

Introduction to Loop Quantum Gravity  

E-Print Network [OSTI]

The questions I have been asked during the 5th International School on Field Theory and Gravitation, have compelled me to give an account of the premises that I consider important for a beginner's approach to Loop Quantum Gravity. After a description of some general arguments and an introduction to the canonical theory of gravity, I review the background independent approach to quantum gravity, giving only a brief survey of Loop Quantum Gravity.

Simone Mercuri

2010-01-08T23:59:59.000Z

93

Neutrino Factory Mercury Flow Loop  

E-Print Network [OSTI]

Neutrino Factory Mercury Flow Loop V. GravesV. Graves C. Caldwell IDS-NF Videoconference March 9, 2010 #12;Flow Loop Review · 1 cm dia nozzle, 20 m/s jet requires 1.57 liter/sec mercury flow (94 2 liter/min 24 9 gpm)mercury flow (94.2 liter/min, 24.9 gpm). · MERIT experiment showed that a pump

McDonald, Kirk

94

Ground State Quantum Computation  

E-Print Network [OSTI]

We formulate a novel ground state quantum computation approach that requires no unitary evolution of qubits in time: the qubits are fixed in stationary states of the Hamiltonian. This formulation supplies a completely time-independent approach to realizing quantum computers. We give a concrete suggestion for a ground state quantum computer involving linked quantum dots.

Ari Mizel; M. W. Mitchell; Marvin L. Cohen

1999-08-11T23:59:59.000Z

95

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. It can be used to compute transient ground potential rise due to lightning or switching, and the ground impedance (i.e. resistance and reactance) at specified frequencies. This report, Volume 4, is a users manual and an installation and validation manual for the computer program TGRND (Transient GRouNDing System Analysis Program). This program computes transient ground potential rise resulting from lightning, switching, or other transient electric currents injected to a grounding system. The program also computes the impedance (i.e. resistance and reactance) of a grounding system as a function of frequency. This program can be utilized in an interactive or batch mode. The users manual describes data requirements and data preparation procedures. The installation and validation manual describes the computer files which make up the program TGRND and provides a test case for validation purposes.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

96

Free loop spaces in topology and  

E-Print Network [OSTI]

Free loop spaces in topology and physics Kathryn Hess What is the space of free loops? Enumeration of geodesics Hochschild and cyclic homology Homological conformal field theories Free loop spaces in topology Meeting of the Edinburgh Mathematical Society Glasgow, 14 November 2008 #12;Free loop spaces in topology

Thévenaz, Jacques

97

Modeling of Standing Column Wells in Ground Source Heat Pump Systems Zheng Deng O'Neill, Ph.D., P.E.  

E-Print Network [OSTI]

Modeling of Standing Column Wells in Ground Source Heat Pump Systems Zheng Deng O'Neill, Ph.D., P Montfort University, Leicester, United Kingdom 1. INTRODUCTION In recent years, ground source heat pump-surface environment: · Ground-coupled heat pump (GCHP) systems (Closed-loop) · Surface water heat pump (SWHP) systems

98

Determination Of The Orientation Of Open Fractures From Hydrophone VSP  

E-Print Network [OSTI]

Open fractures are of interest in many areas such as ground water contamination, hazardous waste disposal, oil and gas recovery, and geothermal energy extraction. In

Lee, Jung Mo

1995-01-01T23:59:59.000Z

99

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 2, is a users manual and an installation and validation manual for the computer program SMECC (Substation Maximum Earth Current Computation Program). This program analyzes the electric current distribution among grounded structures inside and outside a substation for different fault conditions. The fault conditions are automatically selected by the program, or they may be specified by the user, or both. The fault condition resulting in maximum substation earth current is identified and reported. Data requirements for this program are: ground impedance, transformer data, transmission line data, transmission line grounding impedances, etc. The program provides four types of standard outputs: (1) a report of voltages and current flow in the unfaulted system, (2) a brief report of the maximum ground potential rise (worst fault condition), (3) a summary report of all fault conditions which have been analyzed by the program, and (4) a detailed report of voltages and current flow for a selected set of fault conditions.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

100

Thermodynamics in Loop Quantum Cosmology  

E-Print Network [OSTI]

Loop quantum cosmology (LQC) is very powerful to deal with the behavior of early universe. And the effective loop quantum cosmology gives a successful description of the universe in the semiclassical region. We consider the apparent horizon of the Friedmann-Robertson-Walker universe as a thermodynamical system and investigate the thermodynamics of LQC in the semiclassical region. The effective density and effective pressure in the modified Friedmann equation from LQC not only determine the evolution of the universe in LQC scenario but are actually also found to be the thermodynamic quantities. This result comes from the energy definition in cosmology (the Misner-Sharp gravitational energy) and is consistent with thermodynamic laws. We prove that within the framework of loop quantum cosmology, the elementary equation of equilibrium thermodynamics is still valid.

Li-Fang Li; Jian-Yang Zhu

2008-12-18T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Ground Control for Emplacement Drifts for SR  

SciTech Connect (OSTI)

This analysis demonstrates that a satisfactory ground control system can be designed for the Yucca Mountain site, and provides the technical basis for the design of ground support systems to be used in repository emplacement and non-emplacement drifts. The repository ground support design was based on analytical methods using acquired computer codes, and focused on the final support systems. A literature review of case histories, including the lessons learned from the design and construction of the ESF, the studies on the seismic damages of underground openings, and the use of rock mass classification systems in the ground support design, was conducted (Sections 6.3.4 and 6.4). This review provided some basis for determining the inputs and methodologies used in this analysis. Stability of the supported and unsupported emplacement and non-emplacement drifts was evaluated in this analysis. The excavation effects (i.e., state of the stress change due to excavation), thermal effects (i.e., due to heat output from waste packages), and seismic effects (i.e., from potential earthquake events) were evaluated, and stress controlled modes of failure were examined for two in situ stress conditions (k_0=0.3 and 1.0) using rock properties representing rock mass categories of 1 and 5. Variation of rock mass units such as the non-lithophysal (Tptpmn) and lithophysal (Tptpll) was considered in the analysis. The focus was on the non-lithophysal unit because this unit appears to be relatively weaker and has much smaller joint spacing. Therefore, the drift stability and ground support needs were considered to be controlled by the design for this rock unit. The ground support systems for both emplacement and non-emplacement drifts were incorporated into the models to assess their performance under in situ, thermal, and seismic loading conditions. Both continuum and discontinuum modeling approaches were employed in the analyses of the rock mass behavior and in the evaluation of the stability of the openings. No credit or account was given for the initial ground support in modeling the final ground support systems for both emplacement and non-emplacement drifts in this analysis.

Y. Sun

2000-04-07T23:59:59.000Z

102

Similarities and Differences between Coronal Holes and the Quiet Sun: Are Loop Statistics the Key?  

E-Print Network [OSTI]

Coronal holes (CH) emit significantly less at coronal temperatures than quiet-Sun regions (QS), but can hardly be distinguished in most chromospheric and lower transition region lines. A key quantity for the understanding of this phenomenon is the magnetic field. We use data from SOHO/MDI to reconstruct the magnetic field in coronal holes and the quiet Sun with the help of a potential magnetic model. Starting from a regular grid on the solar surface we then trace field lines, which provide the overall geometry of the 3D magnetic field structure. We distinguish between open and closed field lines, with the closed field lines being assumed to represent magnetic loops. We then try to compute some properties of coronal loops. The loops in the coronal holes (CH) are found to be on average flatter than in the QS. High and long closed loops are extremely rare, whereas short and low-lying loops are almost as abundant in coronal holes as in the quiet Sun. When interpreted in the light of loop scaling laws this result suggests an explanation for the relatively strong chromospheric and transition region emission (many low-lying, short loops), but the weak coronal emission (few high and long loops) in coronal holes. In spite of this contrast our calculations also suggest that a significant fraction of the cool emission in CHs comes from the open flux regions. Despite these insights provided by the magnetic field line statistics further work is needed to obtain a definite answer to the question if loop statistics explain the differences between coronal holes and the quiet Sun.

T. Wiegelmann; S. K. Solanki

2008-02-01T23:59:59.000Z

103

Parallel MATLAB: Parallel For Loops  

E-Print Network [OSTI]

Parallel MATLAB: Parallel For Loops John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 69 #12;MATLAB Parallel Example ODE SWEEP Example FMINCON Example Conclusion 2 / 69 #12;INTRO: Parallel MATLAB Parallel MATLAB

Crawford, T. Daniel

104

Loop quantum gravity and observations  

E-Print Network [OSTI]

Quantum gravity has long been thought to be completely decoupled from experiments or observations. Although it is true that smoking guns are still missing, there are now serious hopes that quantum gravity phenomena might be tested. We review here some possible ways to observe loop quantum gravity effects either in the framework of cosmology or in astroparticle physics.

A. Barrau; J. Grain

2014-10-07T23:59:59.000Z

105

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 5, is an applications guide of the three computer programs. SOMIP, SMECC, and SGSYS, for the purpose of designing a safe substation grounding system. The applications guide utilizes four example substation grounding systems for the purpose of illustrating the application of the programs, SOMIP, SMECC, and SGSYS. The examples are based on data provided by four contributing utilities, namely, Houston Lighting and Power Company, Southern Company Services, Puget Sound Power and Light Company, and Arizona Public Service Company. For the purpose of illustrating specific capabilities of the computer programs, the data have been modified. As a result, the final designs of the four systems do not necessarily represent actual grounding system designs by these utilities. The example system 1 is a 138 kV/35 kV distribution substation. The example system 2 is a medium size 230 kV/115 kV transmission substation. The third example system is a generation substation while the last is a large 525 kV/345 kV/230 kV transmission substation. The four examples cover most of the practical problems that a user may encounter in the design of substation grounding systems.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

106

Detecting and escaping infinite loops using Bolt  

E-Print Network [OSTI]

In this thesis we present Bolt, a novel system for escaping infinite loops. If a user suspects that an executing program is stuck in an infinite loop, the user can use the Bolt user interface, which attaches to the running ...

Kling, Michael (Michael W.)

2012-01-01T23:59:59.000Z

107

Video looping of human cyclic motion  

E-Print Network [OSTI]

In this thesis, a system called Video Looping is developed to analyze human cyclic motions. Video Looping allows users to extract human cyclic motion from a given video sequence. This system analyzes similarities from a large amount of live footage...

Choi, Hye Mee

2004-09-30T23:59:59.000Z

108

Hard thermal loops in static external fields  

E-Print Network [OSTI]

We study, in the imaginary-time formalism, the high temperature behavior of n-point thermal loops in static Yang-Mills and gravitational fields. We show that in this regime, any hard thermal loop gives the same leading contribution as the one obtained by evaluating the loop at zero external energies and momenta.

J. Frenkel; S. H. Pereira; N. Takahashi

2009-02-04T23:59:59.000Z

109

Substation grounding programs  

SciTech Connect (OSTI)

The five volume report comprises the user manual, installation, and validation manual and an applications guide for the SGA (Substation Grounding Analysis) software package. SGA consists of four computer programs: (1) SOMIP, (2) SMECC, (3) SGSYS, and (4) TGRND. The first three programs provide a comprehensive analysis tool for the design of substation grounding systems to meet safety standards. The fourth program, TGRND, provides a state of the art analysis tool for computing transient ground potential rise and ground system impedance. This part of the report, Volume 1, is a users manual and an installation and validation manual for the computer program SOMIP (SOil Measurement Interpretation Program). This program computes the best estimate of the parameters of a two layer soil model from usual soil resistivity measurements. Four pin or three pin soil measurements can be accommodated. In addition, it provides error bounds on the soil parameters for a given confidence level. The users manual describes data requirements and data preparation procedures. The installation and validation manual describes the computer files which make up the program SOMIP and provides two test cases for validation purposes. 4 refs.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). School of Electrical Engineering)

1992-05-01T23:59:59.000Z

110

Open versus closed loop capacity equilibria in electricity markets ...  

E-Print Network [OSTI]

May 7, 2012 ... Abstract: We consider two game-theoretic models of the generation capacity expansion problem in liberalized electricity markets. The first is an ...

S. Wogrin

2012-05-07T23:59:59.000Z

111

Belgium east loop active network management (Smart Grid Project) | Open  

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 Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo Feng Bio JumpVentures Jump to:CitySuns Eco TechinalEnergy

112

A Mechanical Fluid-Dynamical Model For Ground Movements At Campi...  

Open Energy Info (EERE)

Mechanical Fluid-Dynamical Model For Ground Movements At Campi Flegrei Caldera Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: A Mechanical...

113

ORS 522.135 Permit Time Limit for Action, Grounds for Issuance...  

Open Energy Info (EERE)

OpenEI Reference LibraryAdd to library Legal Document- StatuteStatute: ORS 522.135 Permit Time Limit for Action, Grounds for Issuance, Conditions, and Fees for Geothermal...

114

GROUND WATER CONTAMINATION  

SciTech Connect (OSTI)

As required by the terms of the above referenced grant, the following summary serves as the Final Report for that grant. The grant relates to work performed at two separate sites, the Hoe Creek Underground Coal Gasification Site south of Gillette, Wyoming, and the Rock Springs In-Situ Oil Shale Retort Site near Rock Springs, Wyoming. The primary concern to the State of Wyoming at each site is ground water contamination (the primary contaminants of concern are benzene and related compounds), and the purpose of the grant has been to provide tiding for a Geohydrologist at the appropriate State agency, specifically the Land Quality Division (LQD) of the Wyoming Department of Environmental Quality. The LQD Geohydrologist has been responsible for providing technical and regulatory support to DOE for ground water remediation and subsequent surface reclamation. Substantial progress has been made toward remediation of the sites, and continuation of LQD involvement in the remediation and reclamation efforts is addressed.

Unknown

1999-09-01T23:59:59.000Z

115

Single-loop controllers bring boilers in line  

SciTech Connect (OSTI)

The boiler process seems simple. Some type of fuel is burned in the presence of air, forming heat and combustion gases. The heat is then absorbed by the boiler drum and transferred to the water inside. The heated water changes to steam and is exhausted, which spins an electrical turbine that produces electricity, and exhausts lower pressure steam for condensing in the process. Although this process seems simple, anything could go wrong at any time. The flame could go out, the fuel could run low, or the drum could get dirty. Let`s take a look at how to avoid these problems. The first step is to take accurate measurements. Typically, these measurements include flow, pressure, conductivity, temperature, stack analysis, and a level or two. Ambient conditions can affect performance of each measuring device, so be sure to consider the hot, drafty conditions of boiler houses when selecting/installing devices. The second step is to bring the measurement signals back to the control room. Use two-wire, loop-powered devices to transmit all signals except the stack analysis signals. Two-wire, loop-powered technology increases reliability, lowers installation costs, and eliminates ground loops. Signal conditioning takes place at the microcontroller input points. Signal conditioning is done to provide a linear, overall loop response to the controller. It also simplified measurement. Examining four types of input signal characterization will help explain the signal conditioning process. The first signal is a zero-based pressure signal with a linear characteristic. The second is a temperature measurement made by a thermocouple whose output is nonlinear. Next is a flow measurement made with a conventional d/p cell and orifice plate. It needs a square root characterization. Last is a combustion air flow measurement from the pressure drop across part of the boiler or preheater. This flow measurement is quite tricky because of a large deviation from the simple square root relationship.

Harrelson, D.; Piechota, B.

1995-08-01T23:59:59.000Z

116

The conformal loop ensemble nesting field  

E-Print Network [OSTI]

The conformal loop ensemble CLE$_\\kappa$ with parameter $8/3 nesting field. We generalize this result by assigning i.i.d. weights to the loops, and we treat an alternate notion of convergence to the nesting field in the case where the weight distribution has mean zero. We also establish estimates for moments of the number of CLE loops surrounding two given points.

Jason Miller; Samuel S. Watson; David B. Wilson

2014-12-21T23:59:59.000Z

117

Hard-thermal-loop QED thermodynamics  

E-Print Network [OSTI]

The weak-coupling expansion for thermodynamic quantities in thermal field theories is poorly convergent unless the coupling constant is tiny. We discuss the calculation of the free energy for a hot gas of electrons and photons to three-loop order using hard-thermal-loop perturbation theory (HTLpt). We show that the hard-thermal-loop perturbation reorganization improves the convergence of the successive approximations to the QED free energy at large coupling, e ~ 2. The reorganization is gauge invariant by construction, and due to the cancellations among various contributions, we obtain a completely analytic result for the resummed thermodynamic potential at three loops.

Nan Su; Jens O. Andersen; Michael Strickland

2009-11-24T23:59:59.000Z

118

The LOFT Ground Segment  

E-Print Network [OSTI]

LOFT, the Large Observatory For X-ray Timing, was one of the ESA M3 mission candidates that completed their assessment phase at the end of 2013. LOFT is equipped with two instruments, the Large Area Detector (LAD) and the Wide Field Monitor (WFM). The LAD performs pointed observations of several targets per orbit (~90 minutes), providing roughly ~80 GB of proprietary data per day (the proprietary period will be 12 months). The WFM continuously monitors about 1/3 of the sky at a time and provides data for about ~100 sources a day, resulting in a total of ~20 GB of additional telemetry. The LOFT Burst alert System additionally identifies on-board bright impulsive events (e.g., Gamma-ray Bursts, GRBs) and broadcasts the corresponding position and trigger time to the ground using a dedicated system of ~15 VHF receivers. All WFM data are planned to be made public immediately. In this contribution we summarize the planned organization of the LOFT ground segment (GS), as established in the mission Yellow Book 1 . We...

Bozzo, E; Argan, A; Barret, D; Binko, P; Brandt, S; Cavazzuti, E; Courvoisier, T; Herder, J W den; Feroci, M; Ferrigno, C; Giommi, P; Götz, D; Guy, L; Hernanz, M; Zand, J J M in't; Klochkov, D; Kuulkers, E; Motch, C; Lumb, D; Papitto, A; Pittori, C; Rohlfs, R; Santangelo, A; Schmid, C; Schwope, A D; Smith, P J; Webb, N A; Wilms, J; Zane, S

2014-01-01T23:59:59.000Z

119

UWB communication receiver feedback loop  

DOE Patents [OSTI]

A novel technique and structure that maximizes the extraction of information from reference pulses for UWB-TR receivers is introduced. The scheme efficiently processes an incoming signal to suppress different types of UWB as well as non-UWB interference prior to signal detection. Such a method and system adds a feedback loop mechanism to enhance the signal-to-noise ratio of reference pulses in a conventional TR receiver. Moreover, sampling the second order statistical function such as, for example, the autocorrelation function (ACF) of the received signal and matching it to the ACF samples of the original pulses for each transmitted bit provides a more robust UWB communications method and system in the presence of channel distortions.

Spiridon, Alex (Palo Alto, CA); Benzel, Dave (Livermore, CA); Dowla, Farid U. (Castro Valley, CA); Nekoogar, Faranak (San Ramon, CA); Rosenbury, Erwin T. (Castro Valley, CA)

2007-12-04T23:59:59.000Z

120

Georgia gulf widens the loop  

SciTech Connect (OSTI)

In describing Georgia Gulf's experience with Responsible Care, president and CEO Jerry Satrum turns first to the pollution prevention code. Noting that the $838-million/year commodities and vinyl resins producer is not on the list of companies with the highest reportable emissions, Satrum says that Georgia Gulf has, nonetheless, reduced emissions from 4.5 million tons in 1987 to 1 million tons. The waste minimization element of pollution prevention has also had a profound effect on a compelling challenge to the company - getting its smaller operations into the loop on Responsible Care. It also brings to bear the product stewardship code - waste and materials management programs at Georgia Gulf's three vinyl compounding operations address waste issues for suppliers and customers.

Mullin, R.

1992-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Ground potential rise monitor  

DOE Patents [OSTI]

A device and method for detecting ground potential rise (GPR) comprising positioning a first electrode and a second electrode at a distance from each other into the earth. The voltage of the first electrode and second electrode is attenuated by an attenuation factor creating an attenuated voltage. The true RMS voltage of the attenuated voltage is determined creating an attenuated true RMS voltage. The attenuated true RMS voltage is then multiplied by the attenuation factor creating a calculated true RMS voltage. If the calculated true RMS voltage is greater than a first predetermined voltage threshold, a first alarm is enabled at a local location. If user input is received at a remote location acknowledging the first alarm, a first alarm acknowledgment signal is transmitted. The first alarm acknowledgment signal is then received at which time the first alarm is disabled.

Allen, Zachery W. (Mandan, ND); Zevenbergen, Gary A. (Arvada, CO)

2012-04-03T23:59:59.000Z

122

Ground Gravity Survey At North Brawley Geothermal Area (Department, 1979) |  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround Gravity SurveyOpen

123

Ground Gravity Survey At Roosevelt Hot Springs Geothermal Area (Faulder,  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround GravityOpen

124

Ground Turkey Stir Fry Ingredients  

E-Print Network [OSTI]

Ground Turkey Stir Fry Ingredients: 1 1/2 cups brown rice, medium- grain, making 3 cups cooked 1 pound ground turkey 4 zucchini 1 onion 1 green pepper 1/4 teaspoon pepper Directions 1. Cook brown rice turkey in skillet and use a spatula to break beef into small pieces as it browns. Keep on stirring

Liskiewicz, Maciej

125

OPEN HONE  

Energy Science and Technology Software Center (OSTI)

003040IBMPC00 The Open Host Network Packet Process Correlator for Windows  http://www.github.com/HoneProject/ 

126

Regional analysis of ground and above-ground climate  

SciTech Connect (OSTI)

The regional suitability of underground construction as a climate control technique is discussed with reference to (1) a bioclimatic analysis of long-term weather data for 29 locations in the United States to determine appropriate above ground climate control techniques, (2) a data base of synthesized ground temperatures for the coterminous United States, and (3) monthly dew point ground temperature comparisons for identifying the relative likelihood of condensation from one region to another. It is concluded that the suitability of earth tempering as a practice and of specific earth-sheltered design stereotypes varies geographically; while the subsurface almost always provides a thermal advantage on its own terms when compared to above ground climatic data, it can, nonetheless, compromise the effectiveness of other, regionally more important climate control techniques. Also contained in the report are reviews of above and below ground climate mapping schemes related to human comfort and architectural design, and detailed description of a theoretical model of ground temperature, heat flow, and heat storage in the ground. Strategies of passive climate control are presented in a discussion of the building bioclimatic analysis procedure which has been applied in a computer analysis of 30 years of weather data for each of 29 locations in the United States.

Not Available

1981-12-01T23:59:59.000Z

127

TEX-A-SYST: Reducing the Risk of Ground Water Contamination by Improving Livestock Holding Pen Management  

E-Print Network [OSTI]

Open lots or holding pens for feeding or holding livestock can be sources of ground water contamination. The safety of such operations depends on their separation from water wells, characteristics of the site, and proper management. This publication...

Harris, Bill L.; Hoffman, D.; Mazac Jr., F. J.

1997-08-29T23:59:59.000Z

128

THREE-DIMENSIONAL MAGNETOHYDRODYNAMIC MODELING OF PROPAGATING DISTURBANCES IN FAN-LIKE CORONAL LOOPS  

SciTech Connect (OSTI)

Quasi-periodic propagating intensity disturbances (PDs) have been observed in large coronal loops in EUV images over a decade, and are widely accepted to be slow magnetosonic waves. However, spectroscopic observations from Hinode/EIS revealed their association with persistent coronal upflows, making this interpretation debatable. Motivated by the scenario that the coronal upflows could be the cumulative result of numerous individual flow pulses generated by sporadic heating events (nanoflares) at the loop base, we construct a velocity driver with repetitive tiny pulses, whose energy frequency distribution follows the flare power-law scaling. We then perform three-dimensional MHD modeling of an idealized bipolar active region by applying this broadband velocity driver at the footpoints of large coronal loops which appear open in the computational domain. Our model successfully reproduces the PDs with similar features as the observed, and shows that any upflow pulses inevitably excite slow magnetosonic wave disturbances propagating along the loop. We find that the generated PDs are dominated by the wave signature as their propagation speeds are consistent with the wave speed in the presence of flows, and the injected flows rapidly decelerate with height. Our simulation results suggest that the observed PDs and associated persistent upflows may be produced by small-scale impulsive heating events (nanoflares) at the loop base in the corona, and that the flows and waves may both contribute to the PDs at lower heights.

Wang, Tongjiang; Ofman, Leon [Department of Physics, Catholic University of America, 620 Michigan Avenue NE, Washington, DC 20064 (United States)] [Department of Physics, Catholic University of America, 620 Michigan Avenue NE, Washington, DC 20064 (United States); Davila, Joseph M., E-mail: tongjiang.wang@nasa.gov [NASA Goddard Space Flight Center, Code 671, Greenbelt, MD 20770 (United States)

2013-09-20T23:59:59.000Z

129

Two-loop Yang-Mills diagrams from superstring amplitudes  

E-Print Network [OSTI]

Starting from the superstring amplitude describing interactions among D-branes with a constant world-volume field strength, we present a detailed analysis of how the open string degeneration limits reproduce the corresponding field theory Feynman diagrams. A key ingredient in the string construction is represented by the twisted (Prym) super differentials, as their periods encode the information about the background field. We provide an efficient method to calculate perturbatively the determinant of the twisted period matrix in terms of sets of super-moduli appropriate to the degeneration limits. Using this result we show that there is a precise one-to-one correspondence between the degeneration of different factors in the superstring amplitudes and one-particle irreducible Feynman diagrams capturing the gauge theory effective action at the two-loop level.

Magnea, Lorenzo; Russo, Rodolfo; Sciuto, Stefano

2015-01-01T23:59:59.000Z

130

THE DYNAMICS AND HEATING OF ACTIVE REGION LOOPS  

SciTech Connect (OSTI)

I examine the dynamics of active regions using spectra obtained by the Extreme-ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft. I show the relationship between non-thermal velocities, Doppler outflows and downflows, intensities, and electron density for two representative active regions out of a group of 18 active regions examined. Results from the other active regions are summarized. Imaging spectra of these active regions were obtained from a number of different EIS raster observations. In the case of the outflows for the two representative regions, two-Gaussian fits were made to line profiles of Fe XII and Fe XIII to obtain quantitative information on high-speed components of the outflows. A three-Gaussian fit was made for the Fe XII line at {lambda}195.119. The highest speed outflows occur in weak regions adjacent to the bright loops in active regions. They are weak (less than 5% of the intensity of the main spectral component in the brightest parts of active regions) and even in the extensive flow regions they are generally less than 25% of the intensity of the main component. The outflow regions are characterized by long or open magnetic field lines and I suggest that the apparent absence of these higher speed outflows in bright regions is due to abundant stationary plasma in the closed bright loop regions that mask or overwhelm the outflow signal.

Doschek, G. A., E-mail: george.doschek@nrl.navy.mil [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States)

2012-08-01T23:59:59.000Z

131

Aberdeen Proving Ground, Maryland: Energy Resources | Open Energy  

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 Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitecAWS Ocean Energy Ltd Jump to:AbakusInformation

132

Ground Gravity Survey (Nannini, 1986) | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.Groom EnergyNannini, 1986) Jump

133

Ground Gravity Survey At Coso Geothermal Area (1980) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.Groom

134

Ground Magnetics At Marysville Mt Area (Blackwell) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986)

135

Ground Water Management District Rules | 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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar,Management District Rules

136

Water Quality Surface and Ground | 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 Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt LakeWashtenaw County, Michigan: Energy Type Term Type

137

Designated Ground Water Basin Map | 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 Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 No revision has beenFinancialSilver PeakProjectDesignated

138

Category:Ground Electromagnetic Techniques | 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 Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascadeJump to: navigation,Areas Jump to:Jump to:

139

Ground Gravity Survey At Coso Geothermal Area (1990) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation, search

140

Ground magnetic survey in the Coso Range, California | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Modulation of DNA loop lifetimes by the free energy of loop formation  

E-Print Network [OSTI]

Storage and retrieval of the genetic information in cells is a dynamic process that requires the DNA to undergo dramatic structural rearrangements. DNA looping is a prominent example of such a structural rearrangement that is essential for transcriptional regulation in both prokaryotes and eukaryotes, and the speed of such regulations affects the fitness of individuals. Here, we examine the in vitro looping dynamics of the classic Lac repressor gene-regulatory motif. We show that both loop association and loop dissociation at the DNA-repressor junctions depend on the elastic deformation of the DNA and protein, and that both looping and unlooping rates approximately scale with the looping J factor, which reflects the system's deformation free energy. We explain this observation by transition state theory and model the DNA-protein complex as an effective worm-like chain with twist. We introduce a finite protein-DNA binding interaction length, in competition with the characteristic DNA deformation length scale, ...

Chen, Yi-Ju; Mulligan, Peter; Spakowitz, Andrew J; Phillips, Rob

2015-01-01T23:59:59.000Z

142

FCH Optical Phase-Locked Loop  

E-Print Network [OSTI]

¦ î ¤ ü � ø Ð Ð ú ¸ � í ® FCH Optical Phase- Locked Loop� � û ³ è Optimization of Optica1 Phase

Choi, Woo-Young

143

Sandia National Laboratories: PMTF Flow Loop  

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

EBTS and EB-1200 vacuum chambers, and is used for infrared thermography in separate hotcold transient tests that assess the quality of brazed joints. The flow loop gives the...

144

The Three-Loop Lattice Free Energy  

E-Print Network [OSTI]

We calculate the free energy of SU(N) gauge theories on the lattice, to three loops. Our result, combined with Monte Carlo data for the average plaquette, gives a more precise estimate of the gluonic condensate.

B. Alles; M. Campostrini; A. Feo; H. Panagopoulos

2005-08-15T23:59:59.000Z

145

Detecting and escaping infinite loops with jolt  

E-Print Network [OSTI]

Infinite loops can make applications unresponsive. Potential problems include lost work or output, denied access to application functionality, and a lack of responses to urgent events. We present Jolt, a novel system for ...

Carbin, Michael James

146

Off-shell two loop QCD vertices  

E-Print Network [OSTI]

We calculate the triple gluon, ghost-gluon and quark-gluon vertex functions at two loops in the MSbar scheme in the chiral limit for an arbitrary linear covariant gauge when the external legs are all off-shell.

J. A. Gracey

2014-06-03T23:59:59.000Z

147

Open Recreation Open Recreation Policy  

E-Print Network [OSTI]

43 Open Recreation Open Recreation Policy These policies apply to all University Recreation scheduled for their chosen activity at that time. The Open Recreation Policy has been revised to read due to violations of policies or inappropriate behavior, i.e.: fighting, using abusive language, etc

Amin, S. Massoud

148

NLS ground states on graphs  

E-Print Network [OSTI]

We investigate the existence of ground states for the subcritical NLS energy on metric graphs. In particular, we find out a topological assumption that guarantees the nonexistence of ground states, and give an example in which the assumption is not fulfilled and ground states actually exist. In order to obtain the result, we introduce a new rearrangement technique, adapted to the graph where it applies. Owing to such a technique, the energy level of the rearranged function is improved by conveniently mixing the symmetric and monotone rearrangement procedures.

Riccardo Adami; Enrico Serra; Paolo Tilli

2014-06-16T23:59:59.000Z

149

Hybrid Combustion-Gasification Chemical Looping  

SciTech Connect (OSTI)

For the past several years Alstom Power Inc. (Alstom), a leading world-wide power system manufacturer and supplier, has been in the initial stages of developing an entirely new, ultra-clean, low cost, high efficiency power plant for the global power market. This new power plant concept is based on a hybrid combustion-gasification process utilizing high temperature chemical and thermal looping technology The process consists of the oxidation, reduction, carbonation, and calcination of calcium-based compounds, which chemically react with coal, biomass, or opportunity fuels in two chemical loops and one thermal loop. The chemical and thermal looping technology can be alternatively configured as (i) a combustion-based steam power plant with CO{sub 2} capture, (ii) a hybrid combustion-gasification process producing a syngas for gas turbines or fuel cells, or (iii) an integrated hybrid combustion-gasification process producing hydrogen for gas turbines, fuel cells or other hydrogen based applications while also producing a separate stream of CO{sub 2} for use or sequestration. In its most advanced configuration, this new concept offers the promise to become the technology link from today's Rankine cycle steam power plants to tomorrow's advanced energy plants. The objective of this work is to develop and verify the high temperature chemical and thermal looping process concept at a small-scale pilot facility in order to enable AL to design, construct and demonstrate a pre-commercial, prototype version of this advanced system. In support of this objective, Alstom and DOE started a multi-year program, under this contract. Before the contract started, in a preliminary phase (Phase 0) Alstom funded and built the required small-scale pilot facility (Process Development Unit, PDU) at its Power Plant Laboratories in Windsor, Connecticut. Construction was completed in calendar year 2003. The objective for Phase I was to develop the indirect combustion loop with CO{sub 2} separation, and also syngas production from coal with the calcium sulfide (CaS)/calcium sulfate (CaSO{sub 4}) loop utilizing the PDU facility. The results of Phase I were reported in Reference 1, 'Hybrid Combustion-Gasification Chemical Looping Coal Power Development Technology Development Phase I Report' The objective for Phase II was to develop the carbonate loop--lime (CaO)/calcium carbonate (CaCO{sub 3}) loop, integrate it with the gasification loop from Phase I, and ultimately demonstrate the feasibility of hydrogen production from the combined loops. The results of this program were reported in Reference 3, 'Hybrid Combustion-Gasification Chemical Looping Coal Power Development Technology Development Phase II Report'. The objective of Phase III is to operate the pilot plant to obtain enough engineering information to design a prototype of the commercial Chemical Looping concept. The activities include modifications to the Phase II Chemical Looping PDU, solids transportation studies, control and instrumentation studies and additional cold flow modeling. The deliverable is a report making recommendations for preliminary design guidelines for the prototype plant, results from the pilot plant testing and an update of the commercial plant economic estimates.

Herbert Andrus; Gregory Burns; John Chiu; Gregory Lijedahl; Peter Stromberg; Paul Thibeault

2009-01-07T23:59:59.000Z

150

Ground Penetrating Radar, Barrow, Alaska  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

This is 500 MHz Ground Penetrating Radar collected along the AB Line in Intensive Site 1 beginning in October 2012 and collected along L2 in Intensive Site 0 beginning in September 2011. Both continue to the present.

John Peterson

151

Ground Water Management Regulations (Louisiana)  

Broader source: Energy.gov [DOE]

The rules and regulations apply to the management of the state's ground water resources. In addition, the Commissioner of Conservation has recommended that oil and gas operators with an interest...

152

Calibrating Pesticide Application Ground Equipment  

E-Print Network [OSTI]

This pocket-sized guide gives step-by-step instructions for calibrating ground sprayers. Tables provide instructions, examples and sample formulas for determining speed of application, flow rate and the amount of pesticide to add to the tank....

Shaw, Bryan W.

2000-07-05T23:59:59.000Z

153

Development of a Residential Ground-Source Integrated Heat Pump  

SciTech Connect (OSTI)

A residential-size ground-source integrated heat pump (GSIHP) system has been developed and is currently being field tested. The system is a nominal 2-ton (7 kW) cooling capacity, variable-speed unit, which is multi-functional, e.g. space cooling, space heating, dedicated water heating, and simultaneous space cooling and water heating. High-efficiency brushless permanent-magnet (BPM) motors are used for the compressor, indoor blower, and pumps to obtain the highest component performance and system control flexibility. Laboratory test data were used to calibrate a vapor-compression simulation model (HPDM) for each of the four primary modes of operation. The model was used to optimize the internal control options and to simulate the selected internal control strategies, such as controlling to a constant air supply temperature in the space heating mode and a fixed water temperature rise in water heating modes. Equipment performance maps were generated for each operation mode as functions of all independent variables for use in TRNSYS annual energy simulations. These were performed for the GSIHP installed in a well-insulated 2600 ft2(242 m2) house and connected to a vertical ground loop heat exchanger(GLHE). We selected a 13 SEER (3.8 CSPF )/7.7 HSPF (2.3 HSPF, W/W) ASHP unit with 0.90 Energy Factor (EF) resistance water heater as the baseline for energy savings comparisons. The annual energy simulations were conducted over five US climate zones. In addition, appropriate ground loop sizes were determined for each location to meet 10-year minimum and maximum design entering water temperatures (EWTs) to the equipment. The prototype GSIHP system was predicted to use 52 to 59% less energy than the baseline system while meeting total annual space conditioning and water heating loads.

Rice, C Keith [ORNL] [ORNL; Baxter, Van D [ORNL] [ORNL; Hern, Shawn [ClimateMaster, Inc.] [ClimateMaster, Inc.; McDowell, Tim [Thermal Energy System Specialists, LLC] [Thermal Energy System Specialists, LLC; Munk, Jeffrey D [ORNL] [ORNL; Shen, Bo [ORNL] [ORNL

2013-01-01T23:59:59.000Z

154

On Smarandache Bryant Schneider group of a Smarandache loop  

E-Print Network [OSTI]

The concept of Smarandache Bryant Schneider Group of a Smarandache loop is introduced. Relationship(s) between the Bryant Schneider Group and the Smarandache Bryant Schneider Group of an S-loop are discovered and the later is found to be useful in finding Smarandache isotopy-isomorphy condition(s) in S-loops just like the formal is useful in finding isotopy-isomorphy condition(s) in loops. Some properties of the Bryant Schneider Group of a loop are shown to be true for the Smarandache Bryant Schneider Group of a Smarandache loop. Some interesting and useful cardinality formulas are also established for a type of finite Smarandache loop.

Temitope Gbolahan Jaiyeola

2008-06-05T23:59:59.000Z

155

MODELING, SIMULATION AND OPTIMIZATION OF GROUND SOURCE  

E-Print Network [OSTI]

MODELING, SIMULATION AND OPTIMIZATION OF GROUND SOURCE HEAT PUMP SYSTEMS By MUHAMMAD HAIDER KHAN AND OPTIMIZATION OF GROUND SOURCE HEAT PUMP SYSTEMS Thesis Approved..................................................................................................................... 1 1.1 Overview of Ground Source Heat Pump Systems.............................................. 1 1

156

Questa Baseline and Pre-Mining Ground-Water Quality Investigation. 3. Historical Ground-Water  

E-Print Network [OSTI]

............................................................................................................................................................... 9 Mine history and ground-water development ....................................................................................................................................................... 11 Ground-water quality database.......................................................................................................................................................... 29 Compilation of complete database

157

Closed Loop Recycling of PreservativeClosed Loop Recycling of Preservative Treated WoodTreated Wood  

E-Print Network [OSTI]

Closed Loop Recycling of PreservativeClosed Loop Recycling of Preservative Treated WoodTreated Wood.2 million cubic meters) of lumber treated with CCA are produced annually in the United States (Micklewright 1998). ·In 1997, for example, some 581.4 million cu. ft. was treated with waterborne preservatives

158

USING MODEL CHECKING TO DERIVE LOOP BOUNDS OF GENERAL LOOPS WITHIN ANSI-C APPLICATIONS FOR  

E-Print Network [OSTI]

USING MODEL CHECKING TO DERIVE LOOP BOUNDS OF GENERAL LOOPS WITHIN ANSI-C APPLICATIONS for applications written in ANSI-C. The described method uses a model checker and a binary search algorithm with little pro- gramming effort for applications written in ANSI-C. The performance is probably inferior

159

Towards LHC phenomenology at the loop level: A new method for one-loop amplitudes  

E-Print Network [OSTI]

A precise understanding of LHC phenomenology requires the inclusion of one-loop corrections for multi-particle final states. In this talk we describe a semi-numerical method to compute one-loop amplitudes with many external particles and present first applications.

T. Binoth; M. Ciccolini; G. Heinrich

2006-01-30T23:59:59.000Z

160

Parameterizing loop fusion for automated empirical tuning  

SciTech Connect (OSTI)

Traditional compilers are limited in their ability to optimize applications for different architectures because statically modeling the effect of specific optimizations on different hardware implementations is difficult. Recent research has been addressing this issue through the use of empirical tuning, which uses trial executions to determine the optimization parameters that are most effective on a particular hardware platform. In this paper, we investigate empirical tuning of loop fusion, an important transformation for optimizing a significant class of real-world applications. In spite of its usefulness, fusion has attracted little attention from previous empirical tuning research, partially because it is much harder to configure than transformations like loop blocking and unrolling. This paper presents novel compiler techniques that extend conventional fusion algorithms to parameterize their output when optimizing a computation, thus allowing the compiler to formulate the entire configuration space for loop fusion using a sequence of integer parameters. The compiler can then employ an external empirical search engine to find the optimal operating point within the space of legal fusion configurations and generate the final optimized code using a simple code transformation system. We have implemented our approach within our compiler infrastructure and conducted preliminary experiments using a simple empirical search strategy. Our results convey new insights on the interaction of loop fusion with limited hardware resources, such as available registers, while confirming conventional wisdom about the effectiveness of loop fusion in improving application performance.

Zhao, Y; Yi, Q; Kennedy, K; Quinlan, D; Vuduc, R

2005-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Entropic Motion in Loop Quantum Gravity  

E-Print Network [OSTI]

Entropic forces result from an increase of the entropy of a thermodynamical physical system. It has been proposed that gravity is such a phenomenon and many articles have appeared on the literature concerning this problem. Loop quantum gravity has also considered such possibility. We propose a new method in loop quantum gravity which reproduces an entropic force. By considering the interaction between a fixed gravity state space and a particle state in loop quantum gravity, we show that it leads to a mathematical description of a random walk of such particle. The random walk in special situations, can be seen as an entropic motion in such a way that the particle will move towards a location where entropy increases. This may prove that such theory can reproduce gravity as it is expected.

J. Manuel Garcia-Islas

2015-02-19T23:59:59.000Z

162

Flat Spacetime Vacuum in Loop Quantum Gravity  

E-Print Network [OSTI]

We construct a state in the loop quantum gravity theory with zero cosmological constant, which should correspond to the flat spacetime vacuum solution. This is done by defining the loop transform coefficients of a flat connection wavefunction in the holomorphic representation which satisfies all the constraints of quantum General Relativity and it is peaked around the flat space triads. The loop transform coefficients are defined as spin foam state sum invariants of the spin networks embedded in the spatial manifold for the SU(2) quantum group. We also obtain an expression for the vacuum wavefunction in the triad represntation, by defining the corresponding spin networks functional integrals as SU(2) quantum group state sums.

A. Mikovic

2004-04-06T23:59:59.000Z

163

A keyboard control method for loop measurement  

SciTech Connect (OSTI)

This paper describes a keyboard control mode based on the DEC VAX computer. The VAX Keyboard code can be found under running of a program was developed. During the loop measurement or multitask operation, it ables to be distinguished from a keyboard code to stop current operation or transfer to another operation while previous information can be held. The combining of this mode, the author successfully used one key control loop measurement for test Dual Input Memory module which is used in a rearrange Energy Trigger system for LEP 8 Bunch operation.

Gao, Z.W. [Universita Degli Studi di Roma La Sapienza (Italy)

1994-12-31T23:59:59.000Z

164

Loop quantum gravity - a short review  

E-Print Network [OSTI]

In this article we review the foundations and the present status of loop quantum gravity. It is short and relatively non-technical, the emphasis is on the ideas, and the flavor of the techniques. In particular, we describe the kinematical quantization and the implementation of the Hamilton constraint, as well as the quantum theory of black hole horizons, semiclassical states, and matter propagation. Spin foam models and loop quantum cosmology are mentioned only in passing, as these will be covered in separate reviews to be published alongside this one.

Sahlmann, Hanno

2010-01-01T23:59:59.000Z

165

Non-standard loop quantum cosmology  

E-Print Network [OSTI]

We present results concerning the nature of the cosmological big bounce(BB) transition within the loop geometry underlying loop quantum cosmology (LQC). Our canonical quantization method is an alternative to the standard LQC. An evolution parameter we use has clear interpretation both at classical and quantum levels. The physical volume operator has discrete spectrum which is bounded from below. The minimum gap in the spectrum defines a quantum of the volume. The spectra of operators are parametrized by a free parameter to be determined.

Wlodzimierz Piechocki

2010-01-19T23:59:59.000Z

166

Automation of one-loop QCD corrections  

E-Print Network [OSTI]

We present the complete automation of the computation of one-loop QCD corrections, including UV renormalization, to an arbitrary scattering process in the Standard Model. This is achieved by embedding the OPP integrand reduction technique, as implemented in CutTools, into the MadGraph framework. By interfacing the tool so constructed, which we dub MadLoop, with MadFKS, the fully automatic computation of any infrared-safe observable at the next-to-leading order in QCD is attained. We demonstrate the flexibility and the reach of our method by calculating the production rates for a variety of processes at the 7 TeV LHC.

Valentin Hirschi; Rikkert Frederix; Stefano Frixione; Maria Vittoria Garzelli; Fabio Maltoni; Roberto Pittau

2013-05-14T23:59:59.000Z

167

Nonlinear Dynamics of Longitudinal Ground Vehicle Traction  

E-Print Network [OSTI]

asphalt b) Wet asphalt c) Gravel d) Packed Snow Nonlinear Dynamics of Longitudinal Ground Vehicle Traction

Shaw, Steven W.

168

Evaluation of multi-loop multi-scale integrals and phenomenological two-loop applications  

E-Print Network [OSTI]

In this thesis, major developments in the publicly available program SecDec are presented, extending the numerical evaluation of multi-loop multi-scale integrals from Euclidean to physical kinematics. The power of this new feature is shown in two phenomenological applications. In the first, numerical results for several massive two-loop four-point functions are shown. In its second application within this thesis, the leading momentum-dependent two-loop corrections to the neutral $\\mathcal{CP}$-even MSSM Higgs-boson masses are calculated. The results are included in the code FeynHiggs.

Sophia Borowka

2014-10-29T23:59:59.000Z

169

Wilson-Loop Symmetry Breaking Reexamined  

E-Print Network [OSTI]

The splitting in energy of gauge field vacua on the non-simply connected space $S^3/Z_2$ is reconsidered. We show the calculation to the one-loop level for a Yang-Mills vector with a ghost field. We confirm our previous result and give a solution to the question posed by Freire, Rom\\~ao and Barroso.

Atsushi Nakamula; Kiyoshi Shiraishi

2014-11-25T23:59:59.000Z

170

Parallel MATLAB at VT: Parallel For Loops  

E-Print Network [OSTI]

Parallel MATLAB at VT: Parallel For Loops John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 72 #12;MATLAB Parallel Example ODE SWEEP Example FMINCON Example Conclusion 2 / 72 #12;INTRO: Parallel MATLAB Parallel MATLAB

Crawford, T. Daniel

171

Parallel MATLAB at VT: Parallel For Loops  

E-Print Network [OSTI]

Parallel MATLAB at VT: Parallel For Loops John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 71 #12;MATLAB Parallel Example ODE SWEEP Example FMINCON Example Conclusion 2 / 71 #12;INTRO: Parallel MATLAB Parallel MATLAB

Crawford, T. Daniel

172

Parallel MATLAB at VT: Parallel For Loops  

E-Print Network [OSTI]

Parallel MATLAB at VT: Parallel For Loops John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 56 #12;Matlab Parallel ODE SWEEP Example MD Example Conclusion 2 / 56 #12;INTRO: Parallel Matlab In a previous lecture we

Crawford, T. Daniel

173

Warm inflationary model in loop quantum cosmology  

SciTech Connect (OSTI)

A warm inflationary universe model in loop quantum cosmology is studied. In general we discuss the condition of inflation in this framework. By using a chaotic potential, V({phi}){proportional_to}{phi}{sup 2}, we develop a model where the dissipation coefficient {Gamma}={Gamma}{sub 0}=constant. We use recent astronomical observations for constraining the parameters appearing in our model.

Herrera, Ramon [Instituto de Fisica, Pontificia Universidad Catolica de Valparaiso, Avenida Brasil 2950, Casilla 4059, Valparaiso (Chile)

2010-06-15T23:59:59.000Z

174

Loop expansion in Yang-Mills thermodynamics  

E-Print Network [OSTI]

We argue that a selfconsistent spatial coarse-graining, which involves interacting (anti)calorons of unit topological charge modulus, implies that real-time loop expansions of thermodynamical quantities in the deconfining phase of SU(2) and SU(3) Yang-Mills thermodynamics are, modulo 1PI resummations, determined by a finite number of connected bubble diagrams.

Ralf Hofmann

2009-11-05T23:59:59.000Z

175

Free Steiner Loops Smile Markovski, Ana Sokolova  

E-Print Network [OSTI]

Free Steiner Loops Smile Markovski, Ana Sokolova Faculty of Sciences and Mathematics, Institute and finite sloops. Two constructions of free objects in the variety of sloops are pre­ sented in this paper. They both allow recursive construction of a free sloop with a free base X, provided that X is recursively

Sokolova, Ana

176

One Loop Renormalization of Fermilab Fermions  

E-Print Network [OSTI]

We discuss the current status of our automatic perturbation theory program as applied to Fermilab Fermions. We give an overview of our methods, a discussion of tree level matching, and one loop results for the coefficients of the higher dimension kinetic operators.

Matthew Nobes; Howard Trottier

2002-09-02T23:59:59.000Z

177

Loop realizations of quantum affine algebras  

SciTech Connect (OSTI)

We give a simplified description of quantum affine algebras in their loop presentation. This description is related to Drinfeld's new realization via halves of vertex operators. We also define an idempotent version of the quantum affine algebra which is suitable for categorification.

Cautis, Sabin [Department of Mathematics, University of Southern California, Los Angeles, California, 90089 (United States); Licata, Anthony [Department of Mathematics, Australian National University, Canberra (Australia)

2012-12-15T23:59:59.000Z

178

Selective purge for hydrogenation reactor recycle loop  

SciTech Connect (OSTI)

Processes and apparatus for providing improved contaminant removal and hydrogen recovery in hydrogenation reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in the hydrogenation reactor recycle loop or purge stream across membranes selective in favor of the contaminant over hydrogen.

Baker, Richard W. (Palo Alto, CA); Lokhandwala, Kaaeid A. (Union City, CA)

2001-01-01T23:59:59.000Z

179

Spontaneous helicity of a polymer with side-loops confined to a cylinder  

E-Print Network [OSTI]

Inspired by recent experiments on the spatial organization of bacterial chromosomes, we consider a type of "bottle brush" polymer consisting of a flexible backbone chain, to which flexible side loops are connected. We show that such a model with an open linear backbone spontaneously adopts a helical structure with a well-defined pitch when confined to small cylindrical volume. This helicity persists over a range of sizes and aspect-ratios of the cylinder, provided the packing fraction of the chain is suitably large. We analyze this results in terms of the interplay between the effective stiffness and actual intra-chain packing effects caused by the side-loops in response to the confinement. For the case of a circular backbone, mimicking e.g. the E. coli chromosome, the polymer adopts a linearized configuration of two parallel helices connected at the cylinder poles.

Chaudhuri, Debasish

2011-01-01T23:59:59.000Z

180

GLAST and Ground-Based Gamma-Ray Astronomy  

SciTech Connect (OSTI)

The launch of the Gamma-ray Large Area Space Telescope (GLAST) in 2007 will open the possibility of combined studies of astrophysical sources with existing ground-based VHE {gamma}-ray experiments such as H.E.S.S., VERITAS and MAGIC. Ground-based {gamma}-ray observatories provide complementary capabilities for spectral, temporal, spatial and population studies of high-energy {gamma}-ray sources. Joint observations cover a huge energy range, from 20 MeV to over 50 TeV. The LAT will survey the entire sky every three hours, allowing us to perform long-term monitoring of variable sources under uniform observation conditions and to detect flaring sources promptly. Imaging atmospheric Cherenkov telescopes (IACTs) will complement these observations with high-sensitivity pointed observations on regions of interest.

Funk, S.; Carson, J.E.; Giebels, B.; Longo, F.; McEnery, J.E.; Paneque, D.; Reimer, O.; Reyes, L.C.

2007-10-10T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Simulation of the hydrogen ground state in Stochastic Electrodynamics  

E-Print Network [OSTI]

Stochastic electrodynamics is a classical theory which assumes that the physical vacuum consists of classical stochastic fields with average energy $\\frac{1}{2}\\hbar \\omega$ in each mode, i.e., the zero-point Planck spectrum. While this classical theory explains many quantum phenomena related to harmonic oscillator problems, hard results on nonlinear systems are still lacking. In this work the hydrogen ground state is studied by numerically solving the Abraham -- Lorentz equation in the dipole approximation. First the stochastic Gaussian field is represented by a sum over Gaussian frequency components, next the dynamics is solved numerically using OpenCL. The approach improves on work by Cole and Zou 2003 by treating the full $3d$ problem and reaching longer simulation times. The results are compared with a conjecture for the ground state phase space density. Though short time results suggest a trend towards confirmation, in all attempted modelings the atom ionises at longer times.

Theo M. Nieuwenhuizen; Matthew T. P. Liska

2015-02-24T23:59:59.000Z

182

Loop simulation capability for sodium-cooled systems  

E-Print Network [OSTI]

A one-dimensional loop simulation capability has been implemented in the thermal-hydraulic analysis code, THERMIT-4E. This code had been used to simulate and investigate flow in test sections of experimental sodium loops ...

Adekugbe, Oluwole A.

1984-01-01T23:59:59.000Z

183

Thalamocortical Loops and Information Processing 2427 Thalamocortical Dysrhythmia  

E-Print Network [OSTI]

T Thalamocortical Loops and Information Processing 2427 Thalamocortical Dysrhythmia Synonyms TCD) the production of low-threshold calcium spike bursts by deinactiva- tion of calcium T-channels, discharging. Corticothalamic and Thalamocortical Interactions Thalamocortical Loops and Information Processing S. MURRAY

Sherman, S. Murray

184

Breakout Session: Getting in the Loop: PV Hardware Recycling...  

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

Getting in the Loop: PV Hardware Recycling and Sustainability Breakout Session: Getting in the Loop: PV Hardware Recycling and Sustainability May 21, 2014 6:30PM to 7:30PM PDT...

185

Gravitational field of a stationary circular cosmic string loop  

E-Print Network [OSTI]

Gravitational field of a stationary circular cosmic string loop has been studied in the context of full nonlinear Einstein's theory of gravity. It has been assumed that the radial and tangential stresses of the loop are equal to the energy density of the string loop. An exact solution for the system has been presented which has a singularity at a finite distance from the axis,but is regular for any other distances from the axis of the loop.

A; A. Sen; N. Banerjee

1998-06-22T23:59:59.000Z

186

Closed loop cooling operation with MICON. Revision 1  

SciTech Connect (OSTI)

Document provides instructions for testing the closed loop cooling operation with the MICON Computer System at PFP.

Navarro, G.E.

1995-01-18T23:59:59.000Z

187

Six-loop divergences in the supersymmetric Kahler sigma model  

E-Print Network [OSTI]

The two-dimensional supersymmetric $\\s$-model on a K\\"ahler manifold has a non-vanishing $\\b$-function at four loops, but the $\\b$-function at five loops can be made to vanish by a specific choice of renormalisation scheme. We investigate whether this phenomenon persists at six loops, and conclude that it does not; there is a non-vanishing six-loop $\\b$-function irrespective of renormalisation scheme ambiguities.

I. Jack; D. R. T. Jones; J. Panvel

1993-11-19T23:59:59.000Z

188

Ground Gravity Survey At North Brawley Geothermal Area (Biehler, 1964) |  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround Gravity Survey

189

Energy agencies appear to be on safe ground, avoiding California's high tide of red ink.  

E-Print Network [OSTI]

Commission. Energy is a multi-billion dollar industry. Its regulating agen- cies are funded largely to explore solar offsets.................................. 8 Commodities regulators open unusual publicEnergy agencies appear to be on safe ground, avoiding California's high tide of red ink

Kammen, Daniel M.

190

On Termination of Integer Linear Loops Joel Ouaknine  

E-Print Network [OSTI]

On Termination of Integer Linear Loops Jo¨el Ouaknine Department of Computer Science Oxford con- cerns the termination of simple linear loops of the form: x u ; while Bx c do x Ax + a , where initial integer vectors u, such a loop terminates. The correctness of our algorithm relies

Ouaknine, Joël

191

Sagnac Interference in Carbon Nanotube Loops Gil Refael,1  

E-Print Network [OSTI]

Sagnac Interference in Carbon Nanotube Loops Gil Refael,1 Jinseong Heo,2 and Marc Bockrath2 1 loops. The conductance as a function of the applied voltage is shown to oscillate due to interference between electron beams traversing the loop in two opposite directions, with slightly different velocities

Bockrath, Marc

192

REFINED RFP LOOP VOLTAGE CALCULATION J.C. Sprott  

E-Print Network [OSTI]

is the stored magnetic energy, Up is the plasma energy, and 'E is the global energy confinement time, which-of-merit for RFP devices is the loop voltage. Low loop voltage implies high plasma temperature and long energy is smallest if the loop is as close to the outside of the shell and as far from the primary windings

Sprott, Julien Clinton

193

Molecular Cell R-Loop Formation Is a Distinctive Characteristic  

E-Print Network [OSTI]

Molecular Cell Article R-Loop Formation Is a Distinctive Characteristic of Unmethylated Human Cp of GC skew leads to the formation of long R loop structures. Furthermore, we show that GC skew and R, we provide evidence that R loop formation protects from DNMT3B1, the primary de novo DNA

Chédin, Frédéric

194

Nested Loop Algorithm for Parallel Model Based Iterative Reconstruction  

E-Print Network [OSTI]

Nested Loop Algorithm for Parallel Model Based Iterative Reconstruction Zhou Yu, Lin Fu, Debashish. In this paper, we propose a fast converging simultaneous-update algorithm using a nested loop structure tomography, iterative reconstruction, nested loop, preconditioner. I. INTRODUCTION Recent applications

195

MAGNETIC LOOPS IN THE QUIET SUN  

SciTech Connect (OSTI)

We investigate the fine structure of magnetic fields in the atmosphere of the quiet Sun. We use photospheric magnetic field measurements from SUNRISE/IMaX with unprecedented spatial resolution to extrapolate the photospheric magnetic field into higher layers of the solar atmosphere with the help of potential and force-free extrapolation techniques. We find that most magnetic loops that reach into the chromosphere or higher have one footpoint in relatively strong magnetic field regions in the photosphere. Ninety-one percent of the magnetic energy in the mid-chromosphere (at a height of 1 Mm) is in field lines, whose stronger footpoint has a strength of more than 300 G, i.e., above the equipartition field strength with convection. The loops reaching into the chromosphere and corona are also found to be asymmetric in the sense that the weaker footpoint has a strength B < 300 G and is located in the internetwork (IN). Such loops are expected to be strongly dynamic and have short lifetimes, as dictated by the properties of the IN fields.

Wiegelmann, T.; Solanki, S. K.; Barthol, P.; Gandorfer, A. [Max-Planck-Institut fuer Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau (Germany); Borrero, J. M.; Schmidt, W. [Kiepenheuer-Institut fuer Sonnenphysik, Schoeneckstr. 6, 79104 Freiburg (Germany); Pillet, V. MartInez; Bonet, J. A. [Instituto de Astrofisica de Canarias, C/Via Lactea s/n, 38200 La Laguna, Tenerife (Spain); Del Toro Iniesta, J. C. [Instituto de Astrofisica de Andalucia (CSIC), Apartado de Correos 3004, 18080 Granada (Spain); Domingo, V. [Grupo de Astronomia y Ciencias del Espacio, Universidad de Valencia, 46980 Paterna, Valencia (Spain); Knoelker, M. [High Altitude Observatory, National Center for Atmospheric Research Boulder, CO 80307 (United States); Title, A. M., E-mail: wiegelmann@mps.mpg.d [Lockheed Martin Solar and Astrophysics Laboratory, Bldg. 252, 3251 Hanover Street, Palo Alto, CA 94304 (United States)

2010-11-10T23:59:59.000Z

196

Montana Ground Water Assessment Act (Montana)  

Broader source: Energy.gov [DOE]

This statute establishes a program to systematically assess and monitor the state's ground water and to disseminate the information to interested persons in order to improve the quality of ground...

197

North Village Ground Source Heat Pumps  

Broader source: Energy.gov [DOE]

Overview: Installation of Ground Source Heat Pumps. Replacement of Aging Heat Pumps. Alignment with Furmans Sustainability Goals.

198

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpen House Open

199

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeeding access1 TechnicalOilOnline Application »OpenOpen Issues

200

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeeding access1 TechnicalOilOnline Application »OpenOpen

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Case Study/ Ground Water Sustainability: Methodology and  

E-Print Network [OSTI]

, or the lack thereof, of ground water flow systems driven by similar hydrogeologic and economic conditionsCase Study/ Ground Water Sustainability: Methodology and Application to the North China Plain of a ground water flow system in the North China Plain (NCP) subject to severe overexploitation and rapid

Zheng, Chunmiao

202

Atlas SCT/Pixel Grounding and Shielding ATLAS SCT/Pixel Grounding and Shielding Note  

E-Print Network [OSTI]

Atlas SCT/Pixel Grounding and Shielding 1 ATLAS SCT/Pixel Grounding and Shielding Note November 22 mostly connects existing mechanical electrical conductive #12; Atlas SCT/Pixel Grounding and Shielding 2 that equivalent. The barrel outer heat shield (150 aluminum) main element shield. #12; Atlas SCT/Pixel Grounding

California at Santa Cruz, University of

203

The role of loop stacking in the dynamics of DNA hairpin formation  

E-Print Network [OSTI]

We study the dynamics of DNA hairpin formation using oxDNA, a nucleotide-level coarse-grained model of DNA. In particular, we explore the effects of the loop stacking interactions and non-native base pairing on the hairpin closing times. We find a non-monotonic variation of the hairpin closing time with temperature, in agreement with the experimental work of Wallace et al. [Proc. Nat. Acad. Sci. USA 2001, 98, 5584-5589]. The hairpin closing process involves the formation of an initial nucleus of one or two bonds between the stems followed by a rapid zippering of the stem. At high temperatures, typically above the hairpin melting temperature, an effective negative activation enthalpy is observed because the nucleus has a lower enthalpy than the open state. By contrast, at low temperatures, the activation enthalpy becomes positive mainly due to the increasing energetic cost of bending a loop that becomes increasingly highly stacked as the temperature decreases. We show that stacking must be very strong to induce this experimentally observed behavior, and that the existence of just a few weak stacking points along the loop can substantially suppress it. Non-native base pairs are observed to have only a small effect, slightly accelerating hairpin formation.

Majid Mosayebi; Flavio Romano; Thomas E. Ouldridge; Ard A. Louis; Jonathan P. K. Doye

2014-10-05T23:59:59.000Z

204

Product-state Approximations to Quantum Ground States  

E-Print Network [OSTI]

The local Hamiltonian problem consists of estimating the ground-state energy (given by the minimum eigenvalue) of a local quantum Hamiltonian. First, we show the existence of a good product-state approximation for the ground-state energy of 2-local Hamiltonians with one or more of the following properties: (1) high degree, (2) small expansion, or (3) a ground state with sublinear entanglement with respect to some partition into small pieces. The approximation based on degree is a surprising difference between quantum Hamiltonians and classical CSPs (constraint satisfaction problems), since in the classical setting, higher degree is usually associated with harder CSPs. The approximation based on low entanglement, in turn, was previously known only in the regime where the entanglement was close to zero. Since the existence of a low-energy product state can be checked in NP, the result implies that any Hamiltonian used for a quantum PCP theorem should have: (1) constant degree, (2) constant expansion, (3) a "volume law" for entanglement with respect to any partition into small parts. Second, we show that in several cases, good product-state approximations not only exist, but can be found in polynomial time: (1) 2-local Hamiltonians on any planar graph, solving an open problem of Bansal, Bravyi, and Terhal, (2) dense k-local Hamiltonians for any constant k, solving an open problem of Gharibian and Kempe, and (3) 2-local Hamiltonians on graphs with low threshold rank, via a quantum generalization of a recent result of Barak, Raghavendra and Steurer. Our work introduces two new tools which may be of independent interest. First, we prove a new quantum version of the de Finetti theorem which does not require the usual assumption of symmetry. Second, we describe a way to analyze the application of the Lasserre/Parrilo SDP hierarchy to local quantum Hamiltonians.

Fernando G. S. L. Brandão; Aram W. Harrow

2014-12-15T23:59:59.000Z

205

Water-loop heat pump systems  

SciTech Connect (OSTI)

Water-loop heat pump (WLHP) systems are reliable, versatile, energy-efficient alternatives to conventional systems such as packaged rooftop or central chiller systems. These systems offer low installed costs, unparalleled design flexibility, and an inherent ability to recover heat in a variety of commercial and multifamily residential buildings for both new construction and retrofit markets. Southern California Edison Co. (SCE) teamed with EPRI to develop a comprehensive design guide for WLHP systems that incorporated recent research by EPRI, SCE, and others. The project team reviewed current literature, equipment data, and design guidelines from equipment manufacturers. They next discussed design and application practices with consulting engineers as well as design and building contractors. The team also ran extensive computer simulations on commercial and multifamily residential building models for Southern California, both to determine the sensitivity of energy use to WLHP system design parameters and to establish optimal design parameters. This information culminated in a comprehensive engineering guide. Volume 1 of this report, provides step-by-step technical design data for selection, application, and specification of WLHP systems. This guide emphasizes energy-efficient design principles and incorporates the findings of the computer simulations and research. For example, it recommends lowering the loop temperature in buildings dominated by internal loads. Reducing the loop temperature from 90 to 80[degrees]F provides a 7--10% savings in the total system energy in Southern California climate areas. Other recommendations include (1) installing a cooling tower with a propeller fan, which uses one fourth to one third of the energy of a cooling tower with a centrifugal fan; and (2) incorporating variable-speed pumps in conjunction with two-position valves in the heat pumps to reduce the system pump energy use by up to 50%.

Eley, C.; Hydeman, M. (Eley (Charles) Associates, San Francisco, CA (United States))

1992-12-01T23:59:59.000Z

206

Gas Test Loop Booster Fuel Hydraulic Testing  

SciTech Connect (OSTI)

The Gas Test Loop (GTL) project is for the design of an adaptation to the Advanced Test Reactor (ATR) to create a fast-flux test space where fuels and materials for advanced reactor concepts can undergo irradiation testing. Incident to that design, it was found necessary to make use of special booster fuel to enhance the neutron flux in the reactor lobe in which the Gas Test Loop will be installed. Because the booster fuel is of a different composition and configuration from standard ATR fuel, it is necessary to qualify the booster fuel for use in the ATR. Part of that qualification is the determination that required thermal hydraulic criteria will be met under routine operation and under selected accident scenarios. The Hydraulic Testing task in the GTL project facilitates that determination by measuring flow coefficients (pressure drops) over various regions of the booster fuel over a range of primary coolant flow rates. A high-fidelity model of the NW lobe of the ATR with associated flow baffle, in-pile-tube, and below-core flow channels was designed, constructed and located in the Idaho State University Thermal Fluids Laboratory. A circulation loop was designed and constructed by the university to provide reactor-relevant water flow rates to the test system. Models of the four booster fuel elements required for GTL operation were fabricated from aluminum (no uranium or means of heating) and placed in the flow channel. One of these was instrumented with Pitot tubes to measure flow velocities in the channels between the three booster fuel plates and between the innermost and outermost plates and the side walls of the flow annulus. Flow coefficients in the range of 4 to 6.5 were determined from the measurements made for the upper and middle parts of the booster fuel elements. The flow coefficient for the lower end of the booster fuel and the sub-core flow channel was lower at 2.3.

Gas Test Loop Hydraulic Testing Staff

2006-09-01T23:59:59.000Z

207

High Energy Evolution with Pomeron Loops  

E-Print Network [OSTI]

The high energy/density QCD has been widely used for DIS phenomenology with a projectile particle considered as perturbative and dilute. We review some recent attempts to derive a high energy evolution kernel which treats targets and projectiles in a symmetric manner. From theoretical point of view the problem is tightly related to inclusion of Pomeron loops in the evolution. The ultimate goal is to consider high energy scatterings with both projectile and target being dense, the situation faced at RHIC and the LHC.

Michael Lublinsky

2006-05-02T23:59:59.000Z

208

Thermoelectric power generator with intermediate loop  

DOE Patents [OSTI]

A thermoelectric power generator is disclosed for use to generate electrical power from heat, typically waste heat. An intermediate heat transfer loop forms a part of the system to permit added control and adjustability in the system. This allows the thermoelectric power generator to more effectively and efficiently generate power in the face of dynamically varying temperatures and heat flux conditions, such as where the heat source is the exhaust of an automobile, or any other heat source with dynamic temperature and heat flux conditions.

Bell, Lon E; Crane, Douglas Todd

2013-05-21T23:59:59.000Z

209

Thermoelectric power generator with intermediate loop  

DOE Patents [OSTI]

A thermoelectric power generator is disclosed for use to generate electrical power from heat, typically waste heat. An intermediate heat transfer loop forms a part of the system to permit added control and adjustability in the system. This allows the thermoelectric power generator to more effectively and efficiently generate power in the face of dynamically varying temperatures and heat flux conditions, such as where the heat source is the exhaust of an automobile, or any other heat source with dynamic temperature and heat flux conditions.

Bel,; Lon E. (Altadena, CA); Crane, Douglas Todd (Pasadena, CA)

2009-10-27T23:59:59.000Z

210

Horizon entropy with loop quantum gravity methods  

E-Print Network [OSTI]

We show that the spherically symmetric isolated horizon can be described in terms of an SU(2) connection and a su(2) valued one form, obeying certain constraints. The horizon symplectic structure is precisely the one of 3d gravity in a first order formulation. We quantize the horizon degrees of freedom in the framework of loop quantum gravity, with methods recently developed for 3d gravity with non-vanishing cosmological constant. Bulk excitations ending on the horizon act very similar to particles in 3d gravity. The Bekenstein-Hawking law is recovered in the limit of imaginary Barbero-Immirzi parameter. Alternative methods of quantization are also discussed.

Daniele Pranzetti; Hanno Sahlmann

2014-12-23T23:59:59.000Z

211

Fractal Structure of Loop Quantum Gravity  

E-Print Network [OSTI]

In this paper we have calculated the spectral dimension of loop quantum gravity (LQG) using simple arguments coming from the area spectrum at different length scales. We have obtained that the spectral dimension of the spatial section runs from 2 to 3, across a 1.5 phase, when the energy of a probe scalar field decrees from high to low energy. We have calculated the spectral dimension of the space-time also using results from spin-foam models, obtaining a 2-dimensional effective manifold at hight energy. Our result is consistent with other two approach to non perturbative quantum gravity: causal dynamical triangulation and asymptotic safety quantum gravity.

Leonardo Modesto

2008-12-11T23:59:59.000Z

212

Sandia National Laboratories: PMTF Flow Loop  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLSMolten-Salt StorageNoLong RangePILS Sandia's Work withFlow Loop

213

Grafting Polymer Loops onto Functionalized Nanotubes: Monitoring Grafting and Loop Formation  

SciTech Connect (OSTI)

Polystyrene functionalized at both ends (telechelic polymer) with epoxide groups (epoxy PS epoxy) was reacted with carboxylated multiwall carbon nanotubes (COOH MWNT) in solution in order to graft polymer chains at both ends onto the MWNT surface, forming loops. FT-IR spectroscopy was employed to monitor the formation of aromatic esters and to quantify the amount of telechelic grafted to the nanotube surface as a function of reaction time. When the samples were further annealed in the melt, an increase in the aromatic ester peak was observed, indicating that the unreacted chain ends further grafted to MWNT surfaces to form loops. By reacting the grafted nanotube samples further with monocarboxy terminated poly(4-methylstyrene) (COOH P4MS), the amount of epoxy PS epoxy that had only reacted at one end was determined. Reaction rate analysis indicates that that the grafting of epoxy PS epoxy to the nanotube surface is reaction controlled, as the FT-IR spectroscopy signal grows as a function of approximately t0.3. These studies exemplify how FT-IR spectroscopy can be used as a novel technique to quantify the amount of grafted polymer, grafting rate, and percent of difunctional polymers that form loops, and provide a method to create loop covered nanoparticles.

Ashcraft, Earl C [ORNL; Ji, Haining [ORNL; Mays, Jimmy [ORNL; Dadmun, Mark D [ORNL

2011-01-01T23:59:59.000Z

214

Open University  

ScienceCinema (OSTI)

Michel Pentz est née en Afrique du Sud et venu au Cern en 1957 comme physicien et président de l'associaion du personnel. Il est également fondateur du mouvement Antiapartheid de Genève et a participé à la fondation de l'Open University en Grande-Bretagne. Il nous parle des contextes pédagogiques, culturels et nationaux dans lesquels la méthode peut s'appliquer.

None

2011-04-25T23:59:59.000Z

215

Ground Penetrating Radar in Hydrogeophysics  

SciTech Connect (OSTI)

To meet the needs of a growing population and to provide us with a higher quality of life, increasing pressures are being placed on our environment through the development of agriculture, industry, and infrastructures. Soil erosion, groundwater depletion, salinization, and pollution have been recognized for decades as major threats to ecosystems and human health. More recently, the progressive substitution of fossil fuels by biofuels for energy production and climate change have been recognized as potential threats to our water resources and sustained agricultural productivity. The vadose zone mediates many of the processes that govern water resources and quality, such as the partition of precipitation into infiltration and runoff , groundwater recharge, contaminant transport, plant growth, evaporation, and energy exchanges between the Earth's surface and its atmosphere. It also determines soil organic carbon sequestration and carbon-cycle feedbacks, which could substantially impact climate change. The vadose zone's inherent spatial variability and inaccessibility precludes direct observation of the important subsurface processes. In a societal context where the development of sustainable and optimal environmental management strategies has become a priority, there is a strong prerequisite for the development of noninvasive characterization and monitoring techniques of the vadose zone. In particular, hydrogeophysical approaches applied at relevant scales are required to appraise dynamic subsurface phenomena and to develop optimal sustainability, exploitation, and remediation strategies. Among existing geophysical techniques, ground penetrating radar (GPR) technology is of particular interest for providing high-resolution subsurface images and specifically addressing water-related questions. Ground penetrating radar is based on the transmission and reception of VHF-UHF (30-3000 MHz) electromagnetic waves into the ground, whose propagation is determined by the soil electromagnetic properties and their spatial distribution. As the dielectric permittivity of water overwhelms the permittivity of other soil components, the presence of water in the soil principally governs GPR wave propagation. Therefore, GPR-derived dielectric permittivity is usually used as surrogate measure for soil water content. In the areas of unsaturated zone hydrology and water resources, GPR has been used to identify soil stratigraphy, to locate water tables, to follow wetting front movement, to estimate soil water content, to assist in subsurface hydraulic parameter identification, to assess soil salinity, and to support the monitoring of contaminants. The purpose of this special section of the Vadose Zone Journal is to present recent research advances and applications of GPR in hydrogeophysics, with a particular emphasis on vadose zone investigations. This special section includes contributions presented at the European Geosciences Union General Assembly 2006 (EGU 2006, Vienna, Austria) and the 11th International Conference on Ground Penetrating Radar (GPR 2006, Columbus, OH). The studies presented here deal with a wide range of surface and borehole GPR applications, including GPR sensitivity to contaminant plumes, new methods for soil water content determination, three-dimensional imaging of the subsurface, time-lapse monitoring of hydrodynamic events and inversion techniques for soil hydraulic properties estimation, and joint interpretation of GPR and electric resistivity tomography (ERT) data.

Hubbard, Susan; Lambot, S.; Binley, A.; Slob, E.; Hubbard, S.

2008-01-15T23:59:59.000Z

216

Direct-contact closed-loop heat exchanger  

DOE Patents [OSTI]

A high temperature heat exchanger with a closed loop and a heat transfer liquid within the loop, the closed loop having a first horizontal channel with inlet and outlet means for providing direct contact of a first fluid at a first temperature with the heat transfer liquid, a second horizontal channel with inlet and outlet means for providing direct contact of a second fluid at a second temperature with the heat transfer liquid, and means for circulating the heat transfer liquid.

Berry, Gregory F. (Naperville, IL); Minkov, Vladimir (Skokie, IL); Petrick, Michael (Joliet, IL)

1984-01-01T23:59:59.000Z

217

A STATE VARIABLE DESCRIPTION OF THE RHIC RF CONTROL LOOPS.  

SciTech Connect (OSTI)

The beam transfer function changes during the RHIC ramp. The response of the RF control loops changes as a result. A state-variable description of the beam and the RF control loops was developed. This description was used to generate a set of feedback matrices that keeps the response of the RF control loops constant during the ramp. This paper describes the state-variable description and its use in determining the K matrices.

SCHULTHEISS,C.; BRENNAN,J.M.

2002-06-02T23:59:59.000Z

218

Exhaust Aftertreatment and Low Pressure Loop EGR Applied to an...  

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

Loop EGR Applied to an Off-Highway Engine Project Director- Kirby Baumgard John Deere Power Systems DOE Project Officer- Steve Cooke Subcontract with Michigan Tech August 21...

219

From the ground up Lessons learned from a librarian's experience with digitizing special collections  

E-Print Network [OSTI]

Russell, Beth M. “From the Ground Up! Lessons Learned from One Librarian’s Experience Digitizing Special Collections.” College & Research Libraries News 62 (2001): 603-606. Publisher’s official version: http://crln.acrl.org/. Open Access version... bl e on it s si te . [This document contains the author’s accepted manuscript. For the publisher’s version, see the link in the header of this document.] Paper citation: Russell, Beth M. “From the Ground Up! Lessons Learned from One...

Whittaker, Beth M.

2001-01-01T23:59:59.000Z

220

Parallel Loop Schedules Part I. Preliminaries  

E-Print Network [OSTI]

. Map-Reduce #12;3­2 BIG CPU, BIG DATA itcoin (http://bitcoin.org/) is an open-source, peer-to-peer, digital currency system. Bitcoins are created by "mining," reminiscent of how the 1849 Gold Rush prospectors panned for gold. Our next program example implements a simplified version of Bitcoin mining. You

Kaminsky, Alan

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

One-loop photon-photon scattering in a thermal, deconfining SU(2) Yang-Mills plasma  

E-Print Network [OSTI]

For a deconfining thermal SU(2) Yang-Mills plasma we discuss the role of (anti)calorons in introducing non-thermal behavior effectively described in terms of Planck's quantum of action $\\hbar$. This non-thermality cancels exactly between the ground-state estimate and its free quasiparticle excitations. Kinematic constraints in 4-vertex scattering and the counting of radial loop variables versus the number of independent constraints on them are re-visited. Next, we consider thermal 2$\\rightarrow$ 2 one-loop scattering of the modes remaining massless upon the (anti)caloron induced adjoint Higgs mechanism (thermal ground state after spatial coarse graining). Starting with stringent analytical arguments, we are able to exclude the contribution to photon-photon scattering from diagrams containing at least one three-vertex and, in a next step, a vast majority of all possible configurations involving two four-vertices. By numerical analysis we show that the remaining contribution of the overall S channel is severely suppressed compared to that of the T and U channels, meaning that the creation of a pair of massive vector modes by a pair of photons and vice versa practically does not occur in the Yang-Mills plasma. For the T and U channels the domain of loop integration represents less than $10^{-7}$ times the volume of the unconstrained integration region. The thus introduced photon-photon correlation should affect the Cosmic Microwave Background's polarisation at low redshift. An adaption of the here-developed methods to the analysis of irreducible bubble diagrams could prove the conjecture of hep-th/0609033 on the termination of the loop expansion of thermodynamical quantities at a finite irreducible order.

Niko Krasowski; Ralf Hofmann

2014-04-18T23:59:59.000Z

222

Results from tests of TFL Hydragard sampling loop  

SciTech Connect (OSTI)

When the Defense Waste Processing Facility (DWPF) is operational, processed radioactive sludge will be transferred in batches to the Slurry Mix Evaporator (SME), where glass frit will be added and the contents concentrated by boiling. Batches of the slurry mixture are transferred from the SME to the Melter Feed Tank (MFT). Hydragard{reg_sign} sampling systems are used on the SME and the MFT for collecting slurry samples in vials for chemical analysis. An accurate replica of the Hydragard sampling system was built and tested in the thermal Fluids Laboratory (TFL) to determine the hydragard accuracy. It was determined that the original Hydragard valve frequently drew a non-representative sample stream through the sample vial that ranged from frit enriched to frit depleted. The Hydragard valve was modified by moving the plunger and its seat backwards so that the outer surface of the plunger was flush with the inside diameter of the transfer line when the valve was open. The slurry flowing through the vial accurately represented the composition of the slurry in the reservoir for two types of slurries, different dilution factors, a range of transfer flows and a range of vial flows. It was then found that the 15 ml of slurry left in the vial when the Hydragard valve was closed, which is what will be analyzed at DWPF, had a lower ratio of frit to sludge as characterized by the lithium to iron ratio than the slurry flowing through it. The reason for these differences is not understood at this time but it is recommended that additional experimentation be performed with the TFL Hydragard loop to determine the cause.

Steimke, J.L.

1995-03-01T23:59:59.000Z

223

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpen House

224

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpen HouseFIXED] JGI

225

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpen HouseFIXED]

226

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpen

227

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpenSegfaults when

228

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002 WholesaleEnergy's 1000Department ofOpenSegfaults

229

Open Issues  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeeding access1 TechnicalOilOnline Application »Open

230

Gas Test Loop Functional and Technical Requirements  

SciTech Connect (OSTI)

This document defines the technical and functional requirements for a gas test loop (GTL) to be constructed for the purpose of providing a high intensity fast-flux irradiation environment for developers of advanced concept nuclear reactors. This capability is needed to meet fuels and materials testing requirements of the designers of Generation IV (GEN IV) reactors and other programs within the purview of the Advanced Fuel Cycle Initiative (AFCI). Space nuclear power development programs may also benefit by the services the GTL will offer. The overall GTL technical objective is to provide developers with the means for investigating and qualifying fuels and materials needed for advanced reactor concepts. The testing environment includes a fast-flux neutron spectrum of sufficient intensity to perform accelerated irradiation testing. Appropriate irradiation temperature, gaseous environment, test volume, diagnostics, and access and handling features are also needed. This document serves to identify those requirements as well as generic requirements applicable to any system of this kind.

Glen R. Longhurst; Soli T. Khericha; James L. Jones

2004-09-01T23:59:59.000Z

231

ABJ Fractional Brane from ABJM Wilson Loop  

E-Print Network [OSTI]

We present a new Fermi gas formalism for the ABJ matrix model. This formulation identifies the effect of the fractional M2-brane in the ABJ matrix model as that of a composite Wilson loop operator in the corresponding ABJM matrix model. Using this formalism, we study the phase part of the ABJ partition function numerically and find a simple expression for it. We further compute a few exact values of the partition function at some coupling constants. Fitting these exact values against the expected form of the grand potential, we can determine the grand potential with exact coefficients. The results at various coupling constants enable us to conjecture an explicit form of the grand potential for general coupling constants. The part of the conjectured grand potential from the perturbative sum, worldsheet instantons and bound states is regarded as a natural generalization of that in the ABJM matrix model, though the membrane instanton part contains a new contribution.

Sho Matsumoto; Sanefumi Moriyama

2014-03-03T23:59:59.000Z

232

Geothermal Loop Experimental Facility. Final report  

SciTech Connect (OSTI)

Research at the Geothermal Loop Experimental Facility was successfully concluded in September 1979. In 13,000 hours of operation over a three and one half year period, the nominal 10 megawatt electrical equivalent GLEF provided the opportunity to identify problems in working with highly saline geothermal fluids and to develop solutions that could be applied to a commercial geothermal power plant producing electricity. A seven and one half year period beginning in April 1972, with early well flow testing and ending in September 1979, with the completion of extensive facility and reservoir operations is covered. During this period, the facility was designed, constructed and operated in several configurations. A comprehensive reference document, addressing or referencing documentation of all the key areas investigated is presented.

Not Available

1980-04-01T23:59:59.000Z

233

Massive Nonplanar Two-Loop Maximal Unitarity  

E-Print Network [OSTI]

We explore maximal unitarity for nonplanar two-loop integrals with up to four massive external legs. In this framework, the amplitude is reduced to a basis of master integrals whose coefficients are extracted from maximal cuts. The hepta-cut of the nonplanar double box defines a nodal algebraic curve associated with a multiply pinched genus-3 Riemann surface. All possible configurations of external masses are covered by two distinct topological pictures in which the curve decomposes into either six or eight Riemann spheres. The procedure relies on consistency equations based on vanishing of integrals of total derivatives and Levi-Civita contractions. Our analysis indicates that these constraints are governed by the global structure of the maximal cut. Lastly, we present an algorithm for computing generalized cuts of massive integrals with higher powers of propagators based on the Bezoutian matrix method.

Mads Sogaard; Yang Zhang

2014-06-19T23:59:59.000Z

234

Ground Gravity Survey At Rio Grande Rift Region (Aiken & Ander, 1981) |  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround GravityOpen Energy

235

Ground Gravity Survey At Roosevelt Hot Springs Geothermal Area (Ward, Et  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGround GravityOpenAl.,

236

Affine Nested Loop Programs and their Binary Parameterized Dataflow Graph Counterparts  

E-Print Network [OSTI]

Affine Nested Loop Programs and their Binary Parameterized Dataflow Graph Counterparts Ed F Parameterized static affine nested loop programs can be automatically converted to input-output equivalent Kahn affine nested loop programs which are nested loop programs in which the loop boundaries, the conditions

Bhattacharyya, Shuvra S.

237

Tiling Imperfectly-nested Loop Nests Nawaaz Ahmed, Nikolay Mateev and Keshav Pingali,  

E-Print Network [OSTI]

Tiling Imperfectly-nested Loop Nests Nawaaz Ahmed, Nikolay Mateev and Keshav Pingali, Department the effect of interleaving iterations of these loops. Tiling of perfectly-nested loop nests (which are loop nests in which all assignment statements are contained in the innermost loop) is well understood

Pingali, Keshav K.

238

Evaluation of analytical methods to interpret ground deformations due to soft ground tunneling  

E-Print Network [OSTI]

An in depth study was undertaken to evaluate the effectiveness of analytical solutions in describing ground movements induced by soft ground tunneling. The analytical solutions that were examined consider both isotropic ...

Zymnis, Despina M

2009-01-01T23:59:59.000Z

239

Special Section on Ground Water Research in China Featured in This Issue of Ground Water  

E-Print Network [OSTI]

of Ground Water by Xun Zhou1, Jiu J. Jiao2, and Mary P. Anderson3 Contained in this issue of Ground Water, Groundwater Resources and the Related Environ- Hydrogeologic Problems in China, Beijing: Seismological Press

Jiao, Jiu Jimmy

240

Singlet Free Energies and Renormalized Polyakov Loop in full QCD  

E-Print Network [OSTI]

We calculate the free energy of a static quark anti-quark pair and the renormalized Polyakov loop in 2+1- and 3- flavor QCD using $16^3 \\times 4$ and $16^3 \\times 6$ lattices and improved staggered p4 action. We also compare the renormalized Polyakov loop with the results of our earlier studies.

K. Petrov

2006-10-05T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Charge Trapping in Carbon Nanotube Loops Demonstrated by Electrostatic  

E-Print Network [OSTI]

Charge Trapping in Carbon Nanotube Loops Demonstrated by Electrostatic Force Microscopy Thomas Sand ABSTRACT Electronic devices made from carbon nanotubes (CNTs) can be greatly affected by substrate charges nanotube loops for extended periods of time, showing that nanotubes can act as confining barriers

Nygård, Jesper

242

Analysis of heat transfer in unlooped and looped pulsating  

E-Print Network [OSTI]

Analysis of heat transfer in unlooped and looped pulsating heat pipes M.B. Sha®i and A. Faghri of Mechnical Engineering, New Mexico State University, Las Cruces, USA Keywords Heat transfer, Condensation, Tubing Abstract An advanced heat transfer model for both unlooped and looped Pulsating Heat Pipes (PHPs

Zhang, Yuwen

243

Electricity generation with looped transmission networks: Bidding to an ISO  

E-Print Network [OSTI]

on a transmission network from net generation nodes to net consumption nodes is governed by the Kirchoff Laws [45Electricity generation with looped transmission networks: Bidding to an ISO Xinmin Hu Daniel Ralph to model markets for delivery of electrical power on looped transmission networks. It analyzes

Ferris, Michael C.

244

Exploring the Energy Landscapes of Flexible Molecular Loops using  

E-Print Network [OSTI]

in Dynamical Systems and also applied to Robotics, provide efficient algorithms to trace out implicitly defined molecular loops. These tools produce an atlas composed by coordinated charts that parametrize the conformational space. The atlas captures the structure of this space, which determines the motion of the loop

Porta, Josep M.

245

Robust Multi-loop Airborne SLAM in Unknown Wind Environments  

E-Print Network [OSTI]

Robust Multi-loop Airborne SLAM in Unknown Wind Environments Jonghyuk Kim Department of Engineering for Autonomous Systems University of Sydney, Australia Email: salah@acfr.usyd.edu.au Abstract-- This paper presents a robust multi-loop airborne SLAM structure which also augments wind information. The air velocity

Kim, Jonghyuk "Jon"

246

The nested simple conformal loop ensembles in the Riemann sphere  

E-Print Network [OSTI]

Simple conformal loop ensembles (CLE) are a class of random collection of simple non-intersecting loops that are of particular interest in the study of conformally invariant systems. Among other things related to these CLEs, we prove the invariance in distribution of their nested "full-plane" versions under the inversion $z \\mapsto 1/z$.

Antti Kemppainen; Wendelin Werner

2014-05-23T23:59:59.000Z

247

International Borders, Ground Water Flow, and Hydroschizophrenia  

E-Print Network [OSTI]

beginning to be recognized. The hidden nature of ground water and the lack of international law governingInternational Borders, Ground Water Flow, and Hydroschizophrenia by Todd Jarvis1,2, Mark Giordano3 conducted on transboundary water, transboundary water law, and the mitigation of transboundary water

Wolf, Aaron

248

Rotor Blades and Ground Effect Richard Purvis  

E-Print Network [OSTI]

Rotor Blades and Ground Effect Richard Purvis Department of Mathematics University College London to examine various aspects of rotor blade flows and ground effect. It explores two- and three- dimensional flows, generally concentrating upon regimes that have a degree of rel- evance to typical rotor blade

Purvis, Richard

249

Ground Turkey and Potato Plate Ingredients  

E-Print Network [OSTI]

Ground Turkey and Potato Plate Ingredients: 1 onion 1/2 pound ground turkey 1 cup ketchup, low sodium 4 medium potatoes 4 ounces cheddar cheese, low-fat Directions 1. Cut the ends off of the onion. Meanwhile pierce potatoes in several places with fork. Place on baking dish in microwave oven. Microwave

Liskiewicz, Maciej

250

Ground water provides drinking water, irrigation for  

E-Print Network [OSTI]

Ground water provides drinking water, irrigation for crops and water for indus- tries. It is also connected to surface waters, and maintains the flow of rivers and streams and the level of wetlands- tion of those along Lake Michigan, most communi- ties, farms and industries still rely on ground water

Saldin, Dilano

251

Vortex loops: Are they always doomed to die  

SciTech Connect (OSTI)

The effective equations of motion of relativistic strings in material media are derived and applied to moving rings with a time-dependent radius. The equations contain the Magnus force, due to the motion of the ring relative to the medium, whose eventual effect is the possible stabilization of the ring against shrinking. A constant solution is identified, and small fluctuations around it are bound, demonstrating the stability of the solution. If the string loops created in the cosmological cosmic string scenario interact via this mechanism with a formed-up Higgs particle condensate, then the stabilizing velocities are [similar to][delta][sub loop]/[ital R][sub loop], and the overall effect of this phenomenon is to stabilize large loops and reduce the general disappearance rate of the string loops.

Ben-Ya'acov, U. (International Solvay Institutes for Physics and Chemistry, Campus Plaine-CP231, Universite Libre de Bruxelles, Boulevard du Triomphe, B-1050 Brussels (Belgium))

1995-03-15T23:59:59.000Z

252

Control and optimization system and method for chemical looping processes  

DOE Patents [OSTI]

A control system for optimizing a chemical loop system includes one or more sensors for measuring one or more parameters in a chemical loop. The sensors are disposed on or in a conduit positioned in the chemical loop. The sensors generate one or more data signals representative of an amount of solids in the conduit. The control system includes a data acquisition system in communication with the sensors and a controller in communication with the data acquisition system. The data acquisition system receives the data signals and the controller generates the control signals. The controller is in communication with one or more valves positioned in the chemical loop. The valves are configured to regulate a flow of the solids through the chemical loop.

Lou, Xinsheng; Joshi, Abhinaya; Lei, Hao

2014-06-24T23:59:59.000Z

253

Finite Volume Based Computer Program for Ground Source Heat Pump System  

SciTech Connect (OSTI)

This report is a compilation of the work that has been done on the grant DE-EE0002805 entitled ?Finite Volume Based Computer Program for Ground Source Heat Pump Systems.? The goal of this project was to develop a detailed computer simulation tool for GSHP (ground source heat pump) heating and cooling systems. Two such tools were developed as part of this DOE (Department of Energy) grant; the first is a two-dimensional computer program called GEO2D and the second is a three-dimensional computer program called GEO3D. Both of these simulation tools provide an extensive array of results to the user. A unique aspect of both these simulation tools is the complete temperature profile information calculated and presented. Complete temperature profiles throughout the ground, casing, tube wall, and fluid are provided as a function of time. The fluid temperatures from and to the heat pump, as a function of time, are also provided. In addition to temperature information, detailed heat rate information at several locations as a function of time is determined. Heat rates between the heat pump and the building indoor environment, between the working fluid and the heat pump, and between the working fluid and the ground are computed. The heat rates between the ground and the working fluid are calculated as a function time and position along the ground loop. The heating and cooling loads of the building being fitted with a GSHP are determined with the computer program developed by DOE called ENERGYPLUS. Lastly COP (coefficient of performance) results as a function of time are provided. Both the two-dimensional and three-dimensional computer programs developed as part of this work are based upon a detailed finite volume solution of the energy equation for the ground and ground loop. Real heat pump characteristics are entered into the program and used to model the heat pump performance. Thus these computer tools simulate the coupled performance of the ground loop and the heat pump. The price paid for the three-dimensional detail is the large computational times required with GEO3D. The computational times required for GEO2D are reasonable, a few minutes for a 20 year simulation. For a similar simulation, GEO3D takes days of computational time. Because of the small simulation times with GEO2D, a number of attractive features have been added to it. GEO2D has a user friendly interface where inputs and outputs are all handled with GUI (graphical user interface) screens. These GUI screens make the program exceptionally easy to use. To make the program even easier to use a number of standard input options for the most common GSHP situations are provided to the user. For the expert user, the option still exists to enter their own detailed information. To further help designers and GSHP customers make decisions about a GSHP heating and cooling system, cost estimates are made by the program. These cost estimates include a payback period graph to show the user where their GSHP system pays for itself. These GSHP simulation tools should be a benefit to the advancement of GSHP systems.

Menart, James A. [Wright State University

2013-02-22T23:59:59.000Z

254

Recovery Act: Finite Volume Based Computer Program for Ground Source Heat Pump Systems  

SciTech Connect (OSTI)

This report is a compilation of the work that has been done on the grant DE-EE0002805 entitled ���¢��������Finite Volume Based Computer Program for Ground Source Heat Pump Systems.���¢������� The goal of this project was to develop a detailed computer simulation tool for GSHP (ground source heat pump) heating and cooling systems. Two such tools were developed as part of this DOE (Department of Energy) grant; the first is a two-dimensional computer program called GEO2D and the second is a three-dimensional computer program called GEO3D. Both of these simulation tools provide an extensive array of results to the user. A unique aspect of both these simulation tools is the complete temperature profile information calculated and presented. Complete temperature profiles throughout the ground, casing, tube wall, and fluid are provided as a function of time. The fluid temperatures from and to the heat pump, as a function of time, are also provided. In addition to temperature information, detailed heat rate information at several locations as a function of time is determined. Heat rates between the heat pump and the building indoor environment, between the working fluid and the heat pump, and between the working fluid and the ground are computed. The heat rates between the ground and the working fluid are calculated as a function time and position along the ground loop. The heating and cooling loads of the building being fitted with a GSHP are determined with the computer program developed by DOE called ENERGYPLUS. Lastly COP (coefficient of performance) results as a function of time are provided. Both the two-dimensional and three-dimensional computer programs developed as part of this work are based upon a detailed finite volume solution of the energy equation for the ground and ground loop. Real heat pump characteristics are entered into the program and used to model the heat pump performance. Thus these computer tools simulate the coupled performance of the ground loop and the heat pump. The price paid for the three-dimensional detail is the large computational times required with GEO3D. The computational times required for GEO2D are reasonable, a few minutes for a 20 year simulation. For a similar simulation, GEO3D takes days of computational time. Because of the small simulation times with GEO2D, a number of attractive features have been added to it. GEO2D has a user friendly interface where inputs and outputs are all handled with GUI (graphical user interface) screens. These GUI screens make the program exceptionally easy to use. To make the program even easier to use a number of standard input options for the most common GSHP situations are provided to the user. For the expert user, the option still exists to enter their own detailed information. To further help designers and GSHP customers make decisions about a GSHP heating and cooling system, cost estimates are made by the program. These cost estimates include a payback period graph to show the user where their GSHP system pays for itself. These GSHP simulation tools should be a benefit to the advancement of GSHP system

James A Menart, Professor

2013-02-22T23:59:59.000Z

255

Closed-loop control of anesthesia in children 1 Robust closed-loop control of induction and  

E-Print Network [OSTI]

: During closed-loop control, a drug infusion is continually adjusted according to a measure of clinical. Remifentanil was administered as a bolus (0.5 g/kg), followed by continuous infusion (0.03 g/kg/min). The propofol infusion was closed-loop controlled throughout induction and maintenance of anesthesia, using

256

Chemical Looping Combustion Reactions and Systems  

SciTech Connect (OSTI)

Chemical Looping Combustion (CLC) is one promising fuel-combustion technology, which can facilitate economic CO{sub 2} capture in coal-fired power plants. It employs the oxidation/reduction characteristics of a metal, or oxygen carrier, and its oxide, the oxidizing gas (typically air) and the fuel source may be kept separate. This topical report discusses the results of four complementary efforts: (5.1) the development of process and economic models to optimize important design considerations, such as oxygen carrier circulation rate, temperature, residence time; (5.2) the development of high-performance simulation capabilities for fluidized beds and the collection, parameter identification, and preliminary verification/uncertainty quantification; (5.3) the exploration of operating characteristics in the laboratoryscale bubbling bed reactor, with a focus on the oxygen carrier performance, including reactivity, oxygen carrying capacity, attrition resistance, resistance to deactivation, cost and availability; and (5.4) the identification of kinetic data for copper-based oxygen carriers as well as the development and analysis of supported copper oxygen carrier material. Subtask 5.1 focused on the development of kinetic expressions for the Chemical Looping with Oxygen Uncoupling (CLOU) process and validating them with reported literature data. The kinetic expressions were incorporated into a process model for determination of reactor size and oxygen carrier circulation for the CLOU process using ASPEN PLUS. An ASPEN PLUS process model was also developed using literature data for the CLC process employing an iron-based oxygen carrier, and the results of the process model have been utilized to perform a relative economic comparison. In Subtask 5.2, the investigators studied the trade-off between modeling approaches and available simulations tools. They quantified uncertainty in the high-performance computing (HPC) simulation tools for CLC bed applications. Furthermore, they performed a sensitivity analysis for velocity, height and polydispersity and compared results against literature data for experimental studies of CLC beds with no reaction. Finally, they present an optimization space using simple non-reactive configurations. In Subtask 5.3, through a series of experimental studies, behavior of a variety of oxygen carriers with different loadings and manufacturing techniques was evaluated under both oxidizing and reducing conditions. The influences of temperature, degree of carrier conversion and thermodynamic driving force resulting from the difference between equilibrium and system O{sub 2} partial pressures were evaluated through several experimental campaigns, and generalized models accounting for these influences were developed to describe oxidation and oxygen release. Conversion of three solid fuels with widely ranging reactivities was studied in a small fluidized bed system, and all but the least reactive fuel (petcoke) were rapidly converted by oxygen liberated from the CLOU carrier. Attrition propensity of a variety of carriers was also studied, and the carriers produced by freeze granulation or impregnation of preformed substrates displayed the lowest rates of attrition. Subtask 5.4 focused on gathering kinetic data for a copper-based oxygen carrier to assist with modeling of a functioning chemical looping reactor. The kinetics team was also responsible for the development and analysis of supported copper oxygen carrier material.

Sarofim, Adel; Lighty, JoAnn; Smith, Philip; Whitty, Kevin; Eyring, Edward; Sahir, Asad; Alvarez, Milo; Hradisky, Michael; Clayton, Chris; Konya, Gabor; Baracki, Richard; Kelly, Kerry

2014-03-01T23:59:59.000Z

257

Loop Current and Deep Eddies Princeton University, Princeton, New Jersey  

E-Print Network [OSTI]

. It is shown that north of Campeche Bank is a fertile ground for the growth of deep cyclones by baroclinic

258

1997 annual ground control operating plan for the Waste Isolation Pilot Plant  

SciTech Connect (OSTI)

This plan presents background information and a working guide to assist Mine Operations and Engineering in developing strategies for addressing ground control issues at the Waste Isolation Pilot Plant (WIPP). With the anticipated receipt of waste in late 1997, this document provides additional detail to Panel 1 activities and options. The plan also serves as a foundation document for development and revision of the annual long-term ground control plan. Section 2.0 documents the current status of all underground excavations with respect to location, geology, geometry, age, ground support, operational use, projected life, and physical conditions. Section 3.0 presents the methods used to evaluate ground conditions, including visual observations of the roof, ribs, and floor, inspection of observation holes, and review of instrumentation data. Section 4.0 lists several ground support options and specific applications of each. Section 5.0 discusses remedial ground control measures that have been implemented to date. Section 6.0 presents projections and recommendations for ground control actions based on the information in Sections 2.0 through 5.0 of this plan and on a rating of the critical nature of each specific area. Section 7.0 presents a summary statement, and Section 8.0 includes references. Appendix A provides an overview and critique of ground control systems that have been, or may be, used at the site. Because of the dynamic nature of the underground openings and associated geotechnical activities, this plan will be revised as additional data are incorporated.

NONE

1997-02-01T23:59:59.000Z

259

Boosted Fast Flux Loop Final Report  

SciTech Connect (OSTI)

The Boosted Fast Flux Loop (BFFL) project was initiated to determine basic feasibility of designing, constructing, and installing in a host irradiation facility, an experimental vehicle that can replicate with reasonable fidelity the fast-flux test environment needed for fuels and materials irradiation testing for advanced reactor concepts. Originally called the Gas Test Loop (GTL) project, the activity included (1) determination of requirements that must be met for the GTL to be responsive to potential users, (2) a survey of nuclear facilities that may successfully host the GTL, (3) conceptualizing designs for hardware that can support the needed environments for neutron flux intensity and energy spectrum, atmosphere, flow, etc. needed by the experimenters, and (4) examining other aspects of such a system, such as waste generation and disposal, environmental concerns, needs for additional infrastructure, and requirements for interfacing with the host facility. A revised project plan included requesting an interim decision, termed CD-1A, that had objectives of' establishing the site for the project at the Advanced Test Reactor (ATR) at the Idaho National Laboratory (INL), deferring the CD 1 application, and authorizing a research program that would resolve the most pressing technical questions regarding GTL feasibility, including issues relating to the use of booster fuel in the ATR. Major research tasks were (1) hydraulic testing to establish flow conditions through the booster fuel, (2) mini-plate irradiation tests and post-irradiation examination to alleviate concerns over corrosion at the high heat fluxes planned, (3) development and demonstration of booster fuel fabrication techniques, and (4) a review of the impact of the GTL on the ATR safety basis. A revised cooling concept for the apparatus was conceptualized, which resulted in renaming the project to the BFFL. Before the subsequent CD-1 approval request could be made, a decision was made in April 2006 that further funding for the project would be suspended. Remaining funds have been used to prepare and irradiate mini-plates of the proposed booster fuel. The current baseline design is for a set of three test positions inside an in-pile tube with a thermal neutron absorber and heat sink made of aluminum mixed with hafnium. Operating the ATR at power levels needed to achieve the required fast flux will result in an estimated increase in ATR fuel consumption between 15 and 20% above present rates and a reduction in the time between fuel replacements. Preliminary safety analyses conducted have indicted safe operation of the ATR with the GTL under normal, abnormal, and postulated accident conditions. More comprehensive analyses are needed.

Boosted Fast Flux Loop Project Staff

2009-09-01T23:59:59.000Z

260

Cedarville School District Retrofit of Heating and Cooling Systems with Geothermal Heat Pumpsand Ground Source Water Loops  

Broader source: Energy.gov [DOE]

Project objectives: Improve the indoor air quality and lower the cost of cooling and heating the buildings that make up the campus of Cedarville High School and Middle School.; Provide jobs; and reduce requirements of funds for the capital budget of the School District; and thus give relief to taxpayers in this rural region during a period of economic recession.

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Instability of single-phase natural circulation under multiple loops  

SciTech Connect (OSTI)

Natural circulation loop passively conveys heat from heat sources to heat sinks without mechanical pump. Various plants have natural circulation systems, e.g., solar heaters, Light Water Reactor (LWR) and Liquid Metal Fast Breeder Reactor (LMFBR). The core of LMFBR is cooled by forced convection of single-phase liquid sodium in normal operation. After the accident, the decay heat of the core is designed to be cooled by the natural circulation of the liquid sodium. The natural circulation cooling is very important from a viewpoint of passive safety concept. Here, the natural circulation in single loop system had been studied by many researchers. In a multiple loop system, the instability of natural circulation was more complicated because of the interaction between the loops. In this study, the effects of the multiple loop on the natural circulation instability were investigated numerically. The multiple loops system with one heating tube and two cooling tubes were evaluated. The one-dimensional energy and momentum equations were solved using Finite Difference Method. The flow regimes of the instability were evaluated with varying the heat flux. In multiple loop system, the observed flow was classified into five regimes including chaotic regime. The flow regimes were qualitatively explained by the stability of the attractor in the phase space.

Satoh, A.; Okamoto, K.; Madarame, H. [Univ. of Tokyo, Tokai, Ibaraki (Japan). Nuclear Engineering Research Lab.

1996-08-01T23:59:59.000Z

262

Helical Disruptions in Small Loops of DNA  

E-Print Network [OSTI]

The thermodynamical stability of DNA minicircles is investigated by means of path integral techniques. Hydrogen bonds between base pairs on complementary strands can be broken by thermal fluctuations and temporary fluctuational openings along the double helix are essential to biological functions such as transcription and replication of the genetic information. Helix unwinding and bubble formation patterns are computed in circular sequences with variable radius in order to analyze the interplay between molecule size and appearance of helical disruptions. The latter are found in minicircles with $100$ base pairs and appear as a strategy to soften the stress due to the bending and torsion of the helix.

Zoli, Marco

2015-01-01T23:59:59.000Z

263

Chemical Looping Combustion Reactions and Systems  

SciTech Connect (OSTI)

Chemical Looping Combustion (CLC) is one promising fuel-combustion technology, which can facilitate economic CO2 capture in coal-fired power plants. It employs the oxidation/reduction characteristics of a metal, or oxygen carrier, and its oxide, the oxidizing gas (typically air) and the fuel source may be kept separate. This work focused on two classes of oxygen carrier, one that merely undergoes a change in oxidation state, such as Fe3O4/Fe2O3 and one that is converted from its higher to its lower oxidation state by the release of oxygen on heating, i.e., CuO/Cu2O. This topical report discusses the results of four complementary efforts: (1) the development of process and economic models to optimize important design considerations, such as oxygen carrier circulation rate, temperature, residence time; (2) the development of high-performance simulation capabilities for fluidized beds and the collection, parameter identification, and preliminary verification/uncertainty quantification (3) the exploration of operating characteristics in the laboratory-scale bubbling bed reactor, with a focus on the oxygen carrier performance, including reactivity, oxygen carrying capacity, attrition resistance, resistance to deactivation, cost and availability (4) the identification of mechanisms and rates for the copper, cuprous oxide, and cupric oxide system using thermogravimetric analysis.

Sarofim, Adel; Lighty, JoAnn; Smith, Philip; Whitty, Kevin; Eyring, Edward; Sahir, Asad; Alvarez, Milo; Hradisky, Michael; Clayton, Chris; Konya, Gabor; Baracki, Richard; Kelly, Kerry

2011-07-01T23:59:59.000Z

264

POSSIBLE PHASE LOOP FOR THE GLOBAL DECOUPLING.  

SciTech Connect (OSTI)

The two eigentunes Q{sub I} and Q{sub II}, two eigenmode amplitude ratios R{sub I} and R{sub II}, and two eignmode phase differences {Delta}{phi}{sub I} and {Delta}{phi}{sub II}, are defined as the coupling observables for the linear weak difference betatron coupling. Simulations were carried out to investigate their behaviors in global decoupling scans. It was found that the amplitude ratios R{sub I,II} are more sensitive than the tune split when the decoupling scan is approaching the global uncoupled point, and that the phase differences {Delta}{phi}{sub I,II} tell the right global decoupling direction, the right strength combination of the skew quadrupoles or families. The analytical solution to these six coupling observables is calculated through both the strict matrix approach and the perturbation Hamiltonian approach. The constant phase differences in the right decoupling direction hint a possible global decoupling phase loop. Dedicated beam experiments were carried out at the Relativistic Heavy Ion Collider (RHIC). The preliminary results from the beam experiments are presented. These six parameters can be used for the global decoupling in feed-back mode, especially on the non-stop energy ramp.

LUO, Y.; CAMERON, P.; DELLA PENNA, A.; JONES, R.; ET AL.

2005-05-16T23:59:59.000Z

265

Laser photon statistics in the feedback loop  

E-Print Network [OSTI]

A mere correspondence between the electron statistics and the photon one vanishes in the feedback loop (FBL). It means that the direct photodetection, supplying us with the electron statistics, does not provide us with a wished information about the laser photon statistics. For getting this information we should think up another measurement procedure, and we in the article suggest applying the three-level laser as a auxiliary measuring device. This laser has impressive property, namely, its photon statistics survive information about the initial photon statistics of the laser which excites coherently the three-level medium. Thus, if we choose the laser in the FBL as exciting the three-level laser, then we have an possibility to evaluate its initial photon statistics by means of direct detecting the three-level laser emission. Finally, this approach allows us to conclude the feedback is not capable of creating a regularity in the laser light beam. Contrary, the final photon fluctuations turn out to be always even bigger. The mentioned above feature of the three-level laser takes place only for the strong interaction between the lasers (exciting and excited). It means the initial state of the exciting laser is changed dramatically, so our measurement procedure can not be identified with some non-demolition one.

T. Yu. Golubeva; Yu. M. Golubev

2005-04-23T23:59:59.000Z

266

Scaling Considerations in Ground State Quantum Computation  

E-Print Network [OSTI]

We study design challenges associated with realizing a ground state quantum computer. In such a computer, the energy gap between the ground state and first excited state must be sufficiently large to prevent disruptive excitations. Here, an estimate is provided of this gap as a function of computer size. We then address the problem of detecting the output of a ground state quantum computer. It is shown that the exponential detection difficulties that appear to be present at first can be overcome in a straightforward manner by small design changes.

Ari Mizel; M. W. Mitchell; Marvin L. Cohen

2000-07-02T23:59:59.000Z

267

Folding of a DNA Hairpin Loop Structure in Explicit SolventUsingRepli...  

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

Folding of a DNA Hairpin Loop Structure in Explicit Solvent UsingReplica-Exchange Molecular Dynamics Simulations. Folding of a DNA Hairpin Loop Structure in Explicit Solvent...

268

On the black hole singularity issue in loop quantum gravity  

E-Print Network [OSTI]

This paper presents a brief overview on the issue of singularity resolution in loop quantum gravity presented at the Theory Canada IV conference at the Centre de Recherches Math\\'{e}matiques at the Universit\\'{e} de Montr\\'{e}al (June 4-7, 2008). The intended audience is theoretical physicists who are non-specialist in the field and therefore much of the technical detail is omitted here. Instead, a brief review of loop quantum gravity is presented, followed by a survey of previous and current work on results concerning the resolution of the classical black hole singularity within loop quantum gravity.

A. DeBenedictis

2009-07-05T23:59:59.000Z

269

Day and Night Home Closed-Loop Insulin Delivery in Adults with Type 1 Diabetes: Three Centre Randomised Crossover Study  

E-Print Network [OSTI]

, Jackson NC, Tudor RS, Umpleby AM, Jones RH: Partitioning glucose distribution/transport, disposal, and endogenous production during IVGTT. Am J Physiol Endocrinol Metab 2002;282:E992-1007 29. Wilinska ME, Budiman ES, Taub MB, Elleri D, Allen JM, Acerini... -loop insulin delivery in adults with type 1 diabetes under free-living conditions. Methods Seventeen adults with type 1 diabetes on insulin pump therapy [age 34±9years; HbA1c 7.6±0.8%; duration of diabetes 19±9years; mean±SD] participated in an open...

Leelarathna, Lalantha; Dellweg, Sibylle; Mader, Julia K.; Allen, Janet M.; Benesch, Carsten; Doll, Werner; Ellmerer, Martin; Hartnell, Sara; Heinemann, Lutz; Kojzar, Harald; Michalewski, Lucy; Nodale, Marianna; Thabit, Hood; Wilinska, Malgorzata E.; Pieber, Thomas R.; Arnolds, Sabine; Evans, Mark L.; Hovorka, Roman

270

Selenium speciation in ground water  

SciTech Connect (OSTI)

Selenium toxicity diseases in animals may occur when the intake exceeds 4 mg/kg and selenium deficiency symptoms may occur when dietary intake is less than 0.04 mg/kg. Since the selenium dietary requirement is very close to toxic concentration, it is important to understand the distribution of selenium in the environment. Selenium occurs in four oxidation states (-II, 0, +IV, and +VI) as selenide, elemental selenium, selenite and selenate. Selenate is reported as more soluble and less adsorbed than selenite. Selenate is more easily leached from soils and is the most available form for plants. Increased mobility of Se into the environment via anthropogenic activities, and the potential oxidation-reduction behavior of the element have made it imperative to study the aquatic chemistry of Se. For this purpose, Se species are divided into two different categories: dissolved Se (in material that passes through filters with 0.45 u openings) and particulate Se (in material of particle size > 0.45 mm) typically suspended sediment and other suspended solids. Element and colloidal phase, not truly dissolved, but passing through the filter is deemed to consist of selenium (-2,0). In dissolved state selenium may exist in three of its four oxidation states; Se(-II), Se(+IV), and Se(+VI). Particulate Se may exist in the same oxidation states as dissolved Se and can be found in different phases of the particulate matter. In sediments, Se may be within the organic material, iron and manganese oxides, carbonates or other mineral phases. The actual chemical forms of Se may be adsorbed to or coprecipitated with these phases (primarily selenite, SeO{sub 3}{sup 2{minus}}) and selenate, SeO{sub 4}{sup 2{minus}}. Selenide, Se(-II), can be covalently bound in the organic portion of a sediment. In addition, Se may be found in anoxic sediments as insoluble metal selenide precipitates, an insoluble elemental Se or as ferroselite (FeSe{sub 2}) and Se containing pyrite.

Atalay, A.

1990-07-10T23:59:59.000Z

272

A note on classical ground state energies  

E-Print Network [OSTI]

The pair-specific ground state energy of Newtonian N-body systems grows monotonically in N. This furnishes a whole family of simple new tests for minimality of putative ground state energies obtained through computer experiments. Inspection of several publically available lists of such computer-experimentally obtained putative ground state energies has yielded several dozen instances which failed (at least) one of these tests. Although the correct ground state energy is not revealed by this method, it does yield a better upper bound on it than the experimentally found value whenever the latter fails a monotonicity test. The surveyed N-body systems include in particular N point charges with 2- or 3-dimensional Coulomb pair interactions, placed either on the unit 2-sphere or on a 2-torus (a.k.a. Thomson, Fekete, or Riesz problems).

Michael K. -H. Kiessling

2009-05-28T23:59:59.000Z

273

Commonality of ground systems in launch operations  

E-Print Network [OSTI]

NASA is examining the utility of requiring a certain degree of commonality in both flight and ground systems in the Constellation Program. While the benefits of commonality seem obvious in terms of minimizing upfront ...

Quinn, Shawn M

2008-01-01T23:59:59.000Z

274

Ground Water Protection Act (New Mexico)  

Broader source: Energy.gov [DOE]

The purpose of the Ground Water Protection Act is to provide substantive provisions and funding mechanisms to the extent that funds are available to enable the state to take corrective action at...

275

Building an entanglement measure on physical ground  

E-Print Network [OSTI]

We introduce on physical grounds a new measure of multipartite entanglement for pure states. The function we define is discriminant and monotone under LOCC and moreover can be expressed in terms of observables of the system.

D. Teresi; A. Napoli; A. Messina

2008-05-28T23:59:59.000Z

276

Ground Source Heat Pump System Data Analysis  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Source Heat Pump Subprogram Overview Ground

277

Ground water protection management program plan  

SciTech Connect (OSTI)

U.S. Department of Energy (DOE) Order 5400.1 requires the establishment of a ground water protection management program to ensure compliance with DOE requirements and applicable federal, state, and local laws and regulations. The Uranium Mill Tailings Remedial Action (UMTRA) Project Office was prepared this Ground Water Protection Management Program Plan (ground water protection plan) whose scope and detail reflect the program`s significance and address the seven activities required in DOE Order 5400.1, Chapter III, for special program planning. This ground water protection plan highlights the methods designed to preserve, protect, and monitor ground water resources at UMTRA Project processing and disposal sites. The plan includes an overview of the remedial action status at the 24 designated processing sites and identifies technical guidance documents and site-specific documents for the UMTRA Project ground water protection management program. In addition, the plan addresses the general information required to develop a water resources protection strategy at the permanent disposal sites. Finally, the plan describes ongoing activities that are in various stages of development at UMTRA Project sites.

Not Available

1994-02-01T23:59:59.000Z

278

MODELING, VERIFICATION AND OPTIMIZATION OF HYBRID GROUND SOURCE HEAT PUMP  

E-Print Network [OSTI]

MODELING, VERIFICATION AND OPTIMIZATION OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS IN ENERGYPLUS, VERIFICATION AND OPTIMIZATION OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS IN ENERGYPLUS Thesis Approved by: Dr.................................................................................................................... 16 MODELING OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS IN ENERGYPLUS

279

Journal of Educational Psychology Applying Grounded Coordination Challenges to Concrete  

E-Print Network [OSTI]

Journal of Educational Psychology Applying Grounded Coordination Challenges to Concrete Learning, M. I. (2013, August 19). Applying Grounded Coordination Challenges to Concrete Learning Materials.1037/a0034098 #12;Applying Grounded Coordination Challenges to Concrete Learning Materials: A Study

280

Experimental characterization and chemical kinetics study of chemical looping combustion  

E-Print Network [OSTI]

Chemical looping combustion (CLC) is one of the most promising technologies to achieve carbon capture in fossil fuel power generation plants. A novel rotary-bed reactor concept was proposed by Zhao et. al. [1] in 2013. It ...

Chen, Tianjiao, S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

active region loop: Topics by E-print Network  

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

Loops J.-Y. Lee1,2 , Graham that seems to be associated with separators with a smaller free energy. Subject headings: Sun: corona -- Sun: magnetic topology -- Sun: UV radiation...

282

active region loops: Topics by E-print Network  

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

Loops J.-Y. Lee1,2 , Graham that seems to be associated with separators with a smaller free energy. Subject headings: Sun: corona -- Sun: magnetic topology -- Sun: UV radiation...

283

Investigations of tetraspanin functions using large extracellular loops  

E-Print Network [OSTI]

This thesis describes our characterization of a specific tetraspanin domain: the large extracellular loop (LEL). Tetraspanins are involved in cellular migration, adhesion, and metastasis, sperm-egg fusion, and viral ...

Liu, Christopher C

2005-01-01T23:59:59.000Z

284

How are Feynman graphs resumed by the Loop Vertex Expansion?  

E-Print Network [OSTI]

The purpose of this short letter is to clarify which set of pieces of Feynman graphs are resummed in a Loop Vertex Expansion, and to formulate a conjecture on the $\\phi^4$ theory in non-integer dimension.

Vincent Rivasseau; Zhituo Wang

2010-06-23T23:59:59.000Z

285

High Spatial Resolution Observations of Loops in the Solar Corona  

E-Print Network [OSTI]

Understanding how the solar corona is structured is of fundamental importance to determining how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in July 2012. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270km. We also use Atmospheric Imaging Assembly (AIA) data for a subset of 79 of these loops and find that their temperature distributions are narrow. These observations provide further evidence that loops in the solar corona are structured at a scale of several hundred kilometers, well above the spatial scale of proposed physical mechanisms.

Brooks, David H; Ugarte-Urra, Ignacio; Winebarger, Amy R

2013-01-01T23:59:59.000Z

286

HIGH SPATIAL RESOLUTION OBSERVATIONS OF LOOPS IN THE SOLAR CORONA  

SciTech Connect (OSTI)

Understanding how the solar corona is structured is of fundamental importance to determine how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200 km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in 2012 July. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270 km. We also use Atmospheric Imaging Assembly data for a subset of these loops and find temperature distributions that are generally very narrow. These observations provide further evidence that loops in the solar corona are often structured at a scale of several hundred kilometers, well above the spatial scale of many proposed physical mechanisms.

Brooks, David H.; Ugarte-Urra, Ignacio [College of Science, George Mason University, 4400 University Drive, Fairfax, VA 22030 (United States); Warren, Harry P. [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States); Winebarger, Amy R. [NASA Marshall Space Flight Center, ZP 13, Huntsville, AL 35812 (United States)

2013-08-01T23:59:59.000Z

287

Summing Planar Bosonic Open Strings  

SciTech Connect (OSTI)

In earlier work, planar graphs of massless {phi}{sup 3} theory were summed with the help of the light cone world sheet picture and the mean field approximation. In the present article, the same methods are applied to the problem of summing planar bosonic open strings. They find that in the ground state of the system, string boundaries form a condensate on the world sheet, and a new string emerges from this summation. Its slope is always greater than the initial slope, and it remains non-zero even when the initial slope is set equal to zero. If they assume the initial string tends to a field a theory in the zero slope limit, this result provides evidence for string formation in field theory.

Bardakci, Korkut

2006-02-16T23:59:59.000Z

288

Entropy and Area of Black Holes in Loop Quantum Gravity  

E-Print Network [OSTI]

Simple arguments related to the entropy of black holes strongly constrain the spectrum of the area operator for a Schwarzschild black hole in loop quantum gravity. In particular, this spectrum is fixed completely by the assumption that the black hole entropy is maximum. Within the approach discussed, one arrives in loop quantum gravity at a quantization rule with integer quantum numbers $n$ for the entropy and area of a black hole.

I. B. Khriplovich

2002-03-31T23:59:59.000Z

289

An evaluation of inductance loop detectors for speed measurement accuracy  

E-Print Network [OSTI]

AN EVALUATION OF INDUCTANCE LOOP DETECTORS FOR SPEED MEASUREMENT ACCURACY A Thesis by BRIAN PATRICK CRONIN Submitted to the OfBce of Graduate Studies of Texas AJkM University in partial fulSllment of the requirements for the degree of MASTER... OF SCIENCE December 1994 Major Subject: Civil Engineering AN EVALUATION OF INDUCTANCE LOOP DETECTORS FOR SPEED MEASUREMENT ACCURACY A Thesis by BRIAN PATRICK CRONIN Submitted to Texas ~M University in partial fulfillment of the requirements...

Cronin, Brian Patrick

2012-06-07T23:59:59.000Z

290

Carbon nanotube plectonemes: Loops of twisted helices  

E-Print Network [OSTI]

The relaxation of twist in elastic filaments often drives conformational changes. We explore this paradigm using all-atom computations and report the formation of novel supercoiled shapes in individual carbon nanotubes (CNTs). Decreasing the end distance of torsionally constrained CNTs leads to spontaneous nucleation and growth of a nanotube plectoneme. We develop a stability diagram and comparisons with theoretical frameworks reveal the importance of non-local van Der Waals interactions. In some cases, they stabilize the supercoiling to an extent that its tip locally kinks and then irreversibly reconstructs into a disordered yet strengthened structure that involves $sp^3$ bonding. The ability to engineer supercoiled conformations of CNTs and related nanoscale filaments opens the possibility of a unique set of tunable functional properties at the nanoscale.

Alireza Shahabi; Moneesh Upmanyu

2014-10-27T23:59:59.000Z

291

Free and Open Source Software for Development  

E-Print Network [OSTI]

Development organizations and International Non-Governmental Organizations have been emphasizing the high potential of Free and Open Source Software for the Less Developed Countries. Cost reduction, less vendor dependency and increased potential for local capacity development have been their main arguments. In spite of its advantages, Free and Open Source Software is not widely adopted at the African continent. In this book the authors will explore the grounds on with these expectations are based. Where do they come from and is there evidence to support these expectations? Over the past years several projects have been initiated and some good results have been achieved, but at the same time many challenges were encountered. What lessons can be drawn from these experiences and do these experiences contain enough evidence to support the high expectations? Several projects and their achievements will be considered. In the final part of the book the future of Free and Open Source Software for Development will be explored. Special attention is given to the African continent since here challenges are highest. What is the role of Free and open Source Software for Development and how do we need to position and explore the potential? What are the threats? The book aims at professionals that are engaged in the design and implementation of ICT for Development (ICT4D) projects and want to improve their understanding of the role Free and Open Source Software can play.

Victor van Reijswoud; Arjan de Jager

2008-08-27T23:59:59.000Z

292

Ground heat exchanger design for direct geothermal energy systems .  

E-Print Network [OSTI]

??Direct geothermal energy systems use the ground to heat and cool buildings. Ground-source heat pump (GSHP) systems are the most widespread form of direct geothermal… (more)

COLLS, STUART

2013-01-01T23:59:59.000Z

293

Recovery Act - Geothermal Technologies Program:Ground Source...  

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

Recovery Act - Geothermal Technologies Program:Ground Source Heat Pumps Recovery Act - Geothermal Technologies Program:Ground Source Heat Pumps A detailled description of the...

294

GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL  

E-Print Network [OSTI]

is WIUUTEO GROUND PLANE INSULATION FAILURE IN THE FIRST TPCOn August 27, 1980, an insulation failure occurred dt-ringby a failure uf ground plane insulation. ACKNOWLEDGMENTS The

Green, M.A.

2010-01-01T23:59:59.000Z

295

Department of Veterans Affairs, FONSI - Ground mounted solar...  

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

Ground mounted solar photovoltaic power at San Joaquin National Cemetery Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic power at San Joaquin National...

296

Data Analysis from Ground Source Heat Pump Demonstration Projects...  

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

Analysis from Ground Source Heat Pump Demonstration Projects Data Analysis from Ground Source Heat Pump Demonstration Projects Comparison of building energy use before and after...

297

China's Evolving Defense Economy: A PLA Ground Force Perspective  

E-Print Network [OSTI]

s Evolving Defense Economy: A PLA Ground Force PerspectivePeople’s Liberation Army (PLA) doctrinal developments,modernization of the PLA ground forces have incrementally

COOPER, Cortez A.

2013-01-01T23:59:59.000Z

298

A model of ATL ground motion for storage rings  

E-Print Network [OSTI]

A MODEL OF ATL GROUND MOTION FOR STORAGE RINGS A. WolskiMODEL OF ATL GROUND MOTION FOR STORAGE RINGS* A. Wolski # ,

Wolski, Andrzej; Walker, Nicholas J.

2003-01-01T23:59:59.000Z

299

Hybrid Ground Source System Analysis and Tool Development | Department...  

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

Hybrid Ground Source System Analysis and Tool Development Hybrid Ground Source System Analysis and Tool Development Project objectives: 1. Compile filtered hourly data for three...

300

Open loop control for six degree of freedom alignment using phase plane methods  

E-Print Network [OSTI]

of rotation and translation corrective cycles. 18 T/ XT M, ZT Camera M /~ M Mirror Fig. 6. Example of rotation-translation coupling In the effort to resolve the coupling phenomenon, there are two possible solutions: either transform the pose vector... and the solid line represents the second. The point where the trajectories intersect gives the switching position X(t, ), which is the position of the robot at the time when the velocity command should be turned off. What differentiates the Automated TRAC...

Pafford, Jeffrey Alexander

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Open loop performance of a biomimetic flapping foil autonomous underwater vehicle  

E-Print Network [OSTI]

Flapping foil propulsion is emerging as an alternative to conventional propulsion for underwater vehicles. MIT's Biomimetic Flapping Foil Autonomous Underwater Vehicle is a prototype vehicle that uses four three-dimensional ...

Wolf, Malima Isabelle, 1981-

2006-01-01T23:59:59.000Z

302

Theory and Algorithms for Software Pipelining with Minimal Cost on Nested Loops  

E-Print Network [OSTI]

Theory and Algorithms for Software Pipelining with Minimal Cost on Nested Loops Qingfeng Zhuge. However, little research has been done for the software pipelining problem on nested loops. The existing software pipelining techniques for single loops can only explore the innermost loop parallelism of a nested

Sha, Edwin

303

Longevity of Emplacement Drift Ground Support Materials  

SciTech Connect (OSTI)

The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for selection of materials for ground support that will function throughout the preclosure period. The Development Plan (DP) for this analysis is given in CRWMS M&O (Civilian Radioactive Waste Management System Management and Operating Contractor) (1999a). The candidate materials for ground support are steel (carbon steel, ductile cast iron, galvanized steel, and stainless steel, etc.) and cement. Steel will mainly be used for steel sets, lagging, channels, rock bolts, and wire mesh. Cement usage is only considered in the case of grouted rock bolts. The candidate materials for the invert structure are steel and crushed rock ballast. The materials shall be evaluated for the repository emplacement drift environment under a specific thermal loading condition based on the proposed License Application Design Selection (LADS) design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground control materials for use in emplacement drifts. (2) Review existing documents concerning behavior of candidate ground control materials during the preclosure period. The major criteria to be considered for steel are mechanical and thermal properties, and durability, of which corrosion is the most important concern. (3) Evaluate the available results and develop recommendations for material(s) to be used.

D. Tang

2000-01-07T23:59:59.000Z

304

Microsoft Word - Naselle Tap Modification Loop to Driscoll Sub...  

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

Historic Preservation Officer and the BPA Archaeologist. 2. All standard erosion and sediment control Best Management Practices will be used for any ground disturbance or road...

305

Operational Results of a Closed Brayton Cycle Test-Loop  

SciTech Connect (OSTI)

A number of space and terrestrial power system designs plan to use nuclear reactors that are coupled to Closed-loop Brayton Cycle (CBC) systems to generate electrical power. Because very little experience exists regarding the operational behavior of these systems, Sandia National Laboratories (through its Laboratory Directed Research and Development program) is developing a closed-loop test bed that can be used to determine the operational behavior of these systems and to validate models for these systems. Sandia has contracted Barber-Nichols Corporation to design, fabricate, and assemble a Closed-loop Brayton Cycle (CBC) system. This system was developed by modifying commercially available hardware. It uses a 30 kWe Capstone C-30 gas-turbine unit (www.capstoneturbine.com) with a modified housing that permits the attachment of an electrical heater and a water cooled chiller that are connected to the turbo-machinery in a closed loop. The test-loop reuses the Capstone turbine, compressor, and alternator. The Capstone system's nominal operating point is 1150 K turbine inlet temperature at 96,000 rpm. The annular recuperator and portions of the Capstone control system (inverter) and starter system are also reused. The rotational speed of the turbo-machinery is controlled either by adjusting the alternator load by either using the electrical grid or a separate load bank. This report describes the test-loop hardware SBL-30 (Sandia Brayton Loop-30kWe). Also presented are results of early testing and modeling of the unit. The SBL-30 hardware is currently configured with a heater that is limited to 80 kWth with a maximum outlet temperature of {approx}1000 K.

Wright, Steven A.; Lipinski, Ronald J.; Brown, Nicholas [Sandia National Laboratories, Org 6872 MS-1146, PO Box 5800 Albuquerque, New Mexico 87185 (United States); Fuller, Robert; Nichols, Kenneth [Barber Nichols 6325 W 55th Ave., Arvada, Colorado 80002 (United States)

2005-02-06T23:59:59.000Z

306

Operational results of a Closed Brayton Cycle test-loop.  

SciTech Connect (OSTI)

A number of space and terrestrial power system designs plan to use nuclear reactors that are coupled to Closed-loop Brayton Cycle (CBC) systems to generate electrical power. Because very little experience exists regarding the operational behavior of these systems, Sandia National Laboratories (through its Laboratory Directed Research and Development program) is developing a closed-loop test bed that can be used to determine the operational behavior of these systems and to validate models for these systems. Sandia has contracted Barber-Nichols Corporation to design, fabricate, and assemble a Closed-loop Brayton Cycle (CBC) system. This system was developed by modifying commercially available hardware. It uses a 30 kWe Capstone C-30 gas-turbine unit (www.capstoneturbine.com) with a modified housing that permits the attachment of an electrical heater and a water cooled chiller that are connected to the turbo-machinery in a closed loop. The test-loop reuses the Capstone turbine, compressor, and alternator. The Capstone system's nominal operating point is 1150 K turbine inlet temperature at 96,000 rpm. The annular recuperator and portions of the Capstone control system (inverter) and starter system are also reused. The rotational speed of the turbo-machinery is controlled either by adjusting the alternator load by either using the electrical grid or a separate load bank. This report describes the test-loop hardware SBL-30 (Sandia Brayton Loop-30kWe). Also presented are results of early testing and modeling of the unit. The SBL-30 hardware is currently configured with a heater that is limited to 80 kW{sub th} with a maximum outlet temperature of {approx}1000 K.

Fuller, Robert (Barber Nichols, Arvada, Colorado); Wright, Steven Alan; Nichols, Kenneth Graham. (Barber Nichols, Arvada, Colorado); Brown, Nicholas; Lipinski, Ronald J.

2004-11-01T23:59:59.000Z

307

Mimicking Time Evolution within a Quantum Ground State: Ground-State Quantum Computation, Cloning, and Teleportation  

E-Print Network [OSTI]

Ground-state quantum computers mimic quantum mechanical time evolution within the amplitudes of a time-independent quantum state. We explore the principles that constrain this mimicking. A no-cloning argument is found to impose strong restrictions. It is shown, however, that there is flexibility that can be exploited using quantum teleportation methods to improve ground-state quantum computer design.

Ari Mizel

2003-12-09T23:59:59.000Z

308

The ground state energy at unitarity  

E-Print Network [OSTI]

We consider two-component fermions on the lattice in the unitarity limit. This is an idealized limit of attractive fermions where the range of the interaction is zero and the scattering length is infinite. Using Euclidean time projection, we compute the ground state energy using four computationally different but physically identical auxiliary-field methods. The best performance is obtained using a bounded continuous auxiliary field and a non-local updating algorithm called hybrid Monte Carlo. With this method we calculate results for 10 and 14 fermions at lattice volumes 4^3, 5^3, 6^3, 7^3, 8^3 and extrapolate to the continuum limit. For 10 fermions in a periodic cube, the ground state energy is 0.292(12) times the ground state energy for non-interacting fermions. For 14 fermions the ratio is 0.329(5).

Dean Lee

2008-07-28T23:59:59.000Z

309

Profiles of heating in turbulent coronal magnetic loops  

E-Print Network [OSTI]

Context: The location of coronal heating in magnetic loops has been the subject of a long-lasting controversy: does it occur mostly at the loop footpoints, at the top, is it random, or is the average profile uniform? Aims: We try to address this question in model loops with MHD turbulence and a profile of density and/or magnetic field along the loop. Methods: We use the ShellAtm MHD turbulent heating model described in Buchlin & Velli (2006), with a static mass density stratification obtained by the HydRad model (Bradshaw & Mason 2003). This assumes the absence of any flow or heat conduction subsequent to the dynamic heating. Results: The average profile of heating is quasi-uniform, unless there is an expansion of the flux tube (non-uniform axial magnetic field) or the variation of the kinetic and magnetic diffusion coefficients with temperature is taken into account: in the first case the heating is enhanced at footpoints, whereas in the second case it is enhanced where the dominant diffusion coefficient is enhanced. Conclusions: These simulations shed light on the consequences on heating profiles of the complex interactions between physical effects involved in a non-uniform turbulent coronal loop.

E. Buchlin; P. J. Cargill; S. J. Bradshaw; M. Velli

2007-02-28T23:59:59.000Z

310

SLOW MAGNETOSONIC WAVES AND FAST FLOWS IN ACTIVE REGION LOOPS  

SciTech Connect (OSTI)

Recent extreme ultraviolet spectroscopic observations indicate that slow magnetosonic waves are present in active region (AR) loops. Some of the spectral data were also interpreted as evidence of fast ({approx}100-300 km s{sup -1}) quasi-periodic flows. We have performed three-dimensional magnetohydrodynamic (3D MHD) modeling of a bipolar AR that contains impulsively generated waves and flows in coronal loops. The model AR is initiated with a dipole magnetic field and gravitationally stratified density, with an upflow-driven steadily or periodically in localized regions at the footpoints of magnetic loops. The resulting flows along the magnetic field lines of the AR produce higher density loops compared to the surrounding plasma by injection of material into the flux tubes and the establishment of siphon flow. We find that the impulsive onset of flows with subsonic speeds result in the excitation of damped slow magnetosonic waves that propagate along the loops and coupled nonlinearly driven fast-mode waves. The phase speed of the slow magnetosonic waves is close to the coronal sound speed. When the amplitude of the driving pulses is increased we find that slow shock-like wave trains are produced. When the upflows are driven periodically, undamped oscillations are produced with periods determined by the periodicity of the upflows. Based on the results of the 3D MHD model we suggest that the observed slow magnetosonic waves and persistent upflows may be produced by the same impulsive events at the bases of ARs.

Ofman, L.; Wang, T. J. [Department of Physics, Catholic University of America, Washington, DC 20064 (United States); Davila, J. M. [NASA Goddard Space Flight Center, Code 671, Greenbelt, MD 20771 (United States)

2012-08-01T23:59:59.000Z

311

File:SGI.pdf | 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 Home5b9fcbce19 NoPublicIDAPowerPlantSitingConstruction.pdfNotify98.pdf Jump to: navigation, searchGround Water.pdf | OpenSGI.pdf

312

Field Test of High Efficiency Residential Buildings with Ground-source and Air-source Heat Pump Systems  

SciTech Connect (OSTI)

This paper describes the field performance of space conditioning and water heating equipment in four single-family residential structures with advanced thermal envelopes. Each structure features a different, advanced thermal envelope design: structural insulated panel (SIP); optimum value framing (OVF); insulation with embedded phase change materials (PCM) for thermal storage; and exterior insulation finish system (EIFS). Three of the homes feature ground-source heat pumps (GSHPs) for space conditioning and water heating while the fourth has a two-capacity air-source heat pump (ASHP) and a heat pump water heater (HPWH). Two of the GCHP-equipped homes feature horizontal ground heat exchange (GHX) loops that utillize the existing foundation and utility service trenches while the third features a vertical borehole with vertical u-tube GHX. All of the houses were operated under the same simulated occupancy conditions. Operational data on the house HVAC/Water heating (WH) systems are presented and factors influencing overall performance are summarized.

Ally, Moonis Raza [ORNL] [ORNL; Munk, Jeffrey D [ORNL] [ORNL; Baxter, Van D [ORNL] [ORNL

2011-01-01T23:59:59.000Z

313

From Loops to Trees By-passing Feynman's Theorem  

SciTech Connect (OSTI)

We derive a duality relation between one-loop integrals and phase-space integrals emerging from them through single cuts. The duality relation is realized by a modification of the customary + i0 prescription of the Feynman propagators. The new prescription regularizing the propagators, which we write in a Lorentz covariant form, compensates for the absence of multiple cut contributions that appear in the Feynman Tree Theorem. The duality relation can be applied to generic one-loop quantities in any relativistic, local and unitary field theories. It is suitable for applications to the analytical calculation of one-loop scattering amplitudes, and to the numerical evaluation of cross-sections at next-to-leading order.

Catani, Stefano; Gleisberg, Tanju; Krauss, Frank; Rodrigo, German; Winter, Jan-Christopher

2008-04-22T23:59:59.000Z

314

Closed loop drilling systems can eliminate reserve pit costs  

SciTech Connect (OSTI)

Closed loop systems have become more dependable and efficient, making drilling without a mud pit an economically attractive alternative in many drilling programs. A closed loop system is defined simply as a mechanical and chemical system which will allow an operator to drill a well without using a reserve pit. A closed loop system includes some solids control equipment (such as the shaker, desander, desilter, and proper centrifuge), which may already be on the rig, and a polymer flocculation unit, which is not part of a conventional rig`s solids control system. This paper reviews the various methods of flocculation and the performance of the different units. It then goes on to describe costs and regulations associated with both methods of handling drilling wastes.

Astrella, L.; Wiemers, R. [Environmental Equipment Corp., Denver, CO (United States)

1996-05-27T23:59:59.000Z

315

Hamiltonian traffic dynamics in microfluidic-loop networks  

E-Print Network [OSTI]

Recent microfluidic experiments revealed that large particles advected in a fluidic loop display long-range hydrodynamic interactions. However, the consequences of such couplings on the traffic dynamics in more complex networks remain poorly understood. In this letter, we focus on the transport of a finite number of particles in one-dimensional loop networks. By combining numerical, theoretical, and experimental efforts, we evidence that this collective process offers a unique example of Hamiltonian dynamics for hydrodynamically interacting particles. In addition, we show that the asymptotic trajectories are necessarily reciprocal despite the microscopic traffic rules explicitly break the time reversal symmetry. We exploit these two remarkable properties to account for the salient features of the effective three-particle interaction induced by the exploration of fluidic loops.

Raphaël Jeanneret; Julien Piera-Vest; Denis Bartolo

2011-09-28T23:59:59.000Z

316

Selenium in Oklahoma ground water and soil  

SciTech Connect (OSTI)

Selenium with a consumption of 2 liters per day (5). The objectives of this study are: (1) to determine the concentrations of Se in Oklahoma ground water and soil samples. (2) to map the geographical distribution of Se species in Oklahoma. (3) to relate groundwater depth, pH and geology with concentration of Se.

Atalay, A.; Vir Maggon, D.

1991-03-30T23:59:59.000Z

317

Photovoltaic module mounting clip with integral grounding  

DOE Patents [OSTI]

An electrically conductive mounting/grounding clip, usable with a photovoltaic (PV) assembly of the type having an electrically conductive frame, comprises an electrically conductive body. The body has a central portion and first and second spaced-apart arms extending from the central portion. Each arm has first and second outer portions with frame surface-disrupting element at the outer portions.

Lenox, Carl J.

2010-08-24T23:59:59.000Z

318

Unattended ground sensor situation assessment workstation  

SciTech Connect (OSTI)

Effective utilization of unattended ground sensors (UGSs) in a theater reconnaissance, surveillance, target acquisition, and kill assessment environment requires that a human operator be able to interpret, and collectively assess, the significance of real time data obtained from UGS emplacements over large geographical regions of interest. The products of this UGS data interpretation and assessment activity can then be used in the decision support process for command level evaluation of appropriate courses of action. Advancements in both sensor hardware technology and in software systems and processing technology have enabled the development of practical real time situation assessment capabilities based upon information from unattended ground sensors. A decision support workstation that employs rule-based expert system processing of reports from unattended ground sensors is described. The primary goal of this development activity is to produce a suite of software to track vehicles using data from unattended ground sensors. The situational assessment products from this system have stand-alone utility, but are also intended to provide cueing support for overhead sensors and supplementary feeds to all-source fusion centers. The conceptual framework, developmental architecture, and demonstration field tests of the system are described.

Jeppesen, D.; Trellue, R.

1997-04-01T23:59:59.000Z

319

Above Ground Storage Tank (AST) Inspection Form  

E-Print Network [OSTI]

Above Ground Storage Tank (AST) Inspection Form Petroleum Bulk Storage Form Facility Name: ______________________ Tank No:_______________ Date:_____________ Inspection Parameter Result Comments/Corrective Actions 1. Is there leaking in the interstitial space (not DRY)? YES/NO/NA 2. Tank surface shows signs of leakage? YES/NO/NA 3

Pawlowski, Wojtek

320

Longevity of Emplacement Drift Ground Support Materials  

SciTech Connect (OSTI)

The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for the selection of materials for ground support that will function throughout the preclosure period of a potential repository at Yucca Mountain. REV 01 ICN 01 of this analysis is developed in accordance with AP-3.10Q, Analyses and Models, Revision 2, ICN 4, and prepared in accordance with the Technical Work Plan for Subsurface Design Section FY 01 Work Activities (CRWMS M&O 2001a). The objective of this analysis is to update the previous analysis (CRWMS M&O 2000a) to account for related changes in the Ground Control System Description Document (CRWMS M&O 2000b), the Monitored Geologic Repository Project Description Document, which is included in the Requirements and Criteria for Implementing a Repository Design that can be Operated Over a Range of Thermal Modes (BSC 2001), input information, and in environmental conditions, and to provide updated information on candidate ground support materials. Candidate materials for ground support are carbon steel and cement grout. Steel is mainly used for steel sets, lagging, channel, rock bolts, and wire mesh. Cement grout is only considered in the case of grouted rock bolts. Candidate materials for the emplacement drift invert are carbon steel and granular natural material. Materials are evaluated for the repository emplacement drift environment based on the updated thermal loading condition and waste package design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground support materials for use in emplacement drifts. (2) Review existing documents concerning the behavior of candidate ground support materials during the preclosure period. (3) Evaluate impacts of temperature and radiation effects on mechanical and thermal properties of steel. Assess corrosion potential of steel at emplacement drift environment. (4) Evaluate factors affecting longevity of cement grouts for fully grouted rock bolt system. Provide updated information on cement grout mix design for fully grouted rock bolt system. (5) Evaluate longevity of materials for the emplacement drift invert.

D.H.Tang

2001-05-30T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

A Novel Strange Attractor with a Stretched Loop  

E-Print Network [OSTI]

The paper introduces a new 3D strange attractor topologically different from any other known chaotic attractors. The intentionally constructed model of three autonomous first-order differential equations derives from the coupling-induced complexity of the well-known Lotka-Volterra oscillator. The chaotic attractor exhibiting a double scroll bridged by a loop mutates to a single scroll with a very stretched loop by the variation of one parameter. Analysis of the global behavior of the new low dimensional dissipative dynamical model and its range of periodic and a-periodic oscillations are presented.

Safieddine Bouali

2012-03-30T23:59:59.000Z

322

From Classical To Quantum Gravity: Introduction to Loop Quantum Gravity  

E-Print Network [OSTI]

We present an introduction to the canonical quantization of gravity performed in loop quantum gravity, based on lectures held at the 3rd quantum geometry and quantum gravity school in Zakopane in 2011. A special feature of this introduction is the inclusion of new proposals for coupling matter to gravity that can be used to deparametrize the theory, thus making its dynamics more tractable. The classical and quantum aspects of these new proposals are explained alongside the standard quantization of vacuum general relativity in loop quantum gravity.

Kristina Giesel; Hanno Sahlmann

2013-01-02T23:59:59.000Z

323

Estimating two-loop radiative effects in the MOLLER experiment  

SciTech Connect (OSTI)

Within the on-shell renormalization scheme, two-loop electroweak corrections to the parityviolating polarization asymmetry in the reaction e{sup -}e{sup -} {yields} e{sup -}e{sup -}({gamma}, {gamma}{gamma}) were estimated for the MOLLER experiment at JLab. The infrared divergence and the imaginary part of the amplitude were taken completely under control. Relevant compact expressions obtained by using asymptotic methods are free from unphysical parameters and are convenient for analysis and for numerical estimations. A numerical analysis revealed a significant scale of two-loop effects and the need for taking them into account in the MOLLER experiment.

Aleksejevs, A. G., E-mail: aaleksejevs@swgc.mun.ca [Grenfell Campus Memorial University (Canada); Barkanova, S. G., E-mail: svetlana.barkanova@acadiau.ca [Acadia University (Canada); Zykunov, V. A., E-mail: vladimir.zykunov@cern.ch [Belarussian State University of Transport (Belarus); Kuraev, E. A., E-mail: kuraev@theor.jinr.ru [Joint Institute for Nuclear Research (Russian Federation)

2013-07-15T23:59:59.000Z

324

Abnormal operating procedures for ATR (Advanced Test Reactor's) experiment loops  

SciTech Connect (OSTI)

This paper outlines the background from the TMI accident which resulted in the definition and development of function-oriented procedures. It also explains how function-oriented procedures were applied in a task for the Advanced Test Reactor's (ATR) NR experiment loops. Human performance design discrepancies were identified for existing procedures, and were corrected by upgrading them according to current NRC and DOE standards. Finally, specific recommendations are made with respect to future ATR control room and loop improvements, as they relate to the revision of operating procedures within INEL's power reactor program. 8 refs., 4 figs.

Auflick, J.L.

1989-09-01T23:59:59.000Z

325

Ground-water sample collection and analysis plan for the ground-water surveillance project  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory performs ground-water sampling activities at the US Department of Energy`s (DOE`s) Hanford Site in support of DOE`s environmental surveillance responsibilities. The purpose of this document is to translate DOE`s General Environmental Protection Program (DOE Order 5400.1) into a comprehensive ground-water sample collection and analysis plan for the Hanford Site. This sample collection and analysis plan sets forth the environmental surveillance objectives applicable to ground water, identifies the strategy for selecting sample collection locations, and lists the analyses to be performed to meet those objectives.

Bryce, R.W.; Evans, J.C.; Olsen, K.B.

1991-12-01T23:59:59.000Z

326

Ground-water sample collection and analysis plan for the ground-water surveillance project  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory performs ground-water sampling activities at the US Department of Energy's (DOE's) Hanford Site in support of DOE's environmental surveillance responsibilities. The purpose of this document is to translate DOE's General Environmental Protection Program (DOE Order 5400.1) into a comprehensive ground-water sample collection and analysis plan for the Hanford Site. This sample collection and analysis plan sets forth the environmental surveillance objectives applicable to ground water, identifies the strategy for selecting sample collection locations, and lists the analyses to be performed to meet those objectives.

Bryce, R.W.; Evans, J.C.; Olsen, K.B.

1991-12-01T23:59:59.000Z

327

Exergy and Energy analysis of a ground-source heat pump for domestic water heating under simulated occupancy conditions  

SciTech Connect (OSTI)

This paper presents detailed analysis of a water to water ground source heat pump (WW-GSHP) to provide all the hot water needs in a 345 m2 house located in DOE climate zone 4 (mixed-humid). The protocol for hot water use is based on the Building America Research Benchmark Definition (Hendron 2008; Hendron and Engebrecht 2010) which aims to capture the living habits of the average American household and its impact on energy consumption. The entire house was operated under simulated occupancy conditions. Detailed energy and exergy analysis provides a complete set of information on system efficiency and sources of irreversibility, the main cause of wasted energy. The WW-GSHP was sized at 5.275 kW (1.5-ton) for this house and supplied hot water to a 303 L (80 gal) water storage tank. The WW-GSHP shared the same ground loop with a 7.56 kW (2.1-ton) water to air ground source heat pump (WA-GSHP) which provided space conditioning needs to the entire house. Data, analyses, and measures of performance for the WW-GSHP in this paper complements the results of the WA-GSHP published in this journal (Ally, Munk et al. 2012). Understanding the performance of GSHPs is vital if the ground is to be used as a viable renewable energy resource.

Ally, Moonis Raza [ORNL; Munk, Jeffrey D [ORNL; Baxter, Van D [ORNL; Gehl, Anthony C [ORNL

2012-01-01T23:59:59.000Z

328

LOCA with consequential or delayed LOOP accidents: Unique issues, plant vulnerability, and CDF contributions  

SciTech Connect (OSTI)

A loss-of-coolant accident (LOCA) can cause a loss-of-offsite power (LOOP) wherein the LOOP is usually delayed by few seconds or longer. Such an accident is called LOCA with consequential LOOP, or LOCA with delayed LOOP (here, abbreviated as LOCA/LOOP). This paper analyzes the unique conditions that are associated with a LOCA/LOOP, presents a model, and quantifies its contribution to core damage frequency (CDF). The results show that the CDF contribution can be a dominant contributor to risk for certain plant designs, although boiling water reactors (BWRs) are less vulnerable than pressurized water reactors (PWRs).

Martinez-Guridi, G.; Samanta, P.; Chu, L.; Yang, J.

1998-08-01T23:59:59.000Z

329

Ground Gravity Survey At Under Steamboat Springs Area (Warpinski, Et Al.,  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) | OpenGroundInformation2002)

330

Convenient Fitness Routes for the SU Community North Campus Loop  

E-Print Network [OSTI]

the Archbold-Flanagan entrance, take Sims Drive to Euclid Ave. to the Lancaster Ave. or Westcott St. intersections and back. Distances: 1.18 miles to Lancaster and back; 1.80 miles to Westcott St. and back. to Barry Park, loop Barry Park (using Meadowbrook Dr., Broad St., and Westcott St.) and then head back

Mather, Patrick T.

331

On Achieving Balanced Power Consumption in Software Pipelined Loops #  

E-Print Network [OSTI]

. The benchmarks are executed on the Wattch power simulator. In comparison to the original (powerOn Achieving Balanced Power Consumption in Software Pipelined Loops # Hongbo Yang Dept of ECE Univ@capsl.udel.edu ABSTRACT While a significant body of work in compilers has been de­ voted to reducing energy consumption

Gao, Guang R.

332

ORIGINAL ARTICLE Comparative genomics-guided loop-mediated isothermal  

E-Print Network [OSTI]

ORIGINAL ARTICLE Comparative genomics-guided loop-mediated isothermal amplification sequencing and analytical techniques, genomic sequence data of prok- aryotes are accumulating at a very rapid pace. As of October 2008, there are 873 complete and pub- lished genome sequences, as well as 2025

Hsiang, Tom

333

A PROJECT MANAGEMENT CAUSAL LOOP DIAGRAM T. Michael Toole1  

E-Print Network [OSTI]

A PROJECT MANAGEMENT CAUSAL LOOP DIAGRAM T. Michael Toole1 Accepted for the 2005 ARCOM Conference several deficiencies in current project management analytical techniques. This paper facilitates the integration of system dynamics into project management by providing an overview of system dynamics principles

Toole, T. Michael

334

A multi-band phase-locked loop frequency synthesizer  

E-Print Network [OSTI]

A phase-locked loop (PLL) frequency synthesizer suitable for multi-band transceivers is proposed. The multi-band PLL frequency synthesizer uses a switched tuning voltage- controlled oscillator (VCO) that covers a frequency range of 111 to 297MHz...

Palermo, Samuel Michael

1999-01-01T23:59:59.000Z

335

Ultra LowVoltage Delay Locked Loop Using Carbon Nanotubes  

E-Print Network [OSTI]

Ultra LowVoltage Delay Locked Loop Using Carbon Nanotubes J.S. Ajit Northeastern University Dept, MA 02115 E-mail: ybk@ece.neu.edu AbstractCarbon Nanotube FET technology is investigated for both the shrinking process to continue, and for the development of novel architectures, is the carbon

Ayers, Joseph

336

STRING LOOPS IN BACKGROUND FIELDS Scott Alan Yost  

E-Print Network [OSTI]

excellent collaborators. They have made my stay at Princeton very productive and enjoyable. I thank E. LiebSTRING LOOPS IN BACKGROUND FIELDS Scott Alan Yost A dissertation presented to the faculty formalism. ii #12;Acknowledgements I would like to thank my advisor, Chiara Nappi, for her support, advice

Yost, Scott

337

A Loop Material Flow System Design for Automated Guided Vehicles  

E-Print Network [OSTI]

A Loop Material Flow System Design for Automated Guided Vehicles Ardavan Asef-Vaziri 1 Maged load automated guided vehicles. The model simultaneously determines both the design are attributed to material handling (Tompkins et al., 1996). Automated guided vehicles (AGVs) are among

Dessouky, Maged

338

Closed-Loop Energy Management Control of Large Industrial Facilities  

E-Print Network [OSTI]

A case study is presented of a closed-loop control system installed and running at a Pulp and Paper facility in the southeast. A fuzzy logic, ruled-based control system optimally loads multiple steam turbines for maximum electrical generation, while...

Childress, R. L.

339

Automation of Multi-leg One-loop virtual Amplitudes  

E-Print Network [OSTI]

In the last few years, much progress has been made in the computation of one-loop virtual matrix elements for processes involving many external particles. In this contribution the methods that have enabled this recent progress are briefly reviewed with a focus on their computing and automation aspects.

D. Maitre

2010-06-29T23:59:59.000Z

340

Optimization of Industrial Applications with Hardware in the Loop  

E-Print Network [OSTI]

-RSJ International Conference on Intelligent Robots & Systems (2006)" #12;1 Optimization of Industrial ApplicationsOptimization of Industrial Applications with Hardware in the Loop Matthieu Guilbert St of industrial robots integrated in complex robot cells. Trajectory optimizers are usually based on models

Boyer, Edmond

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

A new closed loop control method for HVDC transmission  

SciTech Connect (OSTI)

The paper presents a new closed loop control method which uses information locally available at each converter station and combines and coordinates control possibilities with the objective of improving the dynamic behavior during fault recoveries and disturbances around the operating points.

Karlecik-Maier, F. [Siemens AG, Erlangen (Germany)] [Siemens AG, Erlangen (Germany)

1996-10-01T23:59:59.000Z

342

Polyakov loop, Hadron Resonance Gas Model and Thermodynamics of QCD  

E-Print Network [OSTI]

We summarize recent results on the hadron resonance gas description of QCD. In particular, we apply this approach to describe the equation of state and the vacuum expectation value of the Polyakov loop in several representations. Ambiguities related to exactly which states should be included are discussed.

E. Megias; E. Ruiz Arriola; L. L. Salcedo

2013-10-11T23:59:59.000Z

343

Magnetic phase diagram of small superconducting two-loop networks  

E-Print Network [OSTI]

The critical magnetic behaviour of simple superconducting micro-networks is illustrat- ed by discussing several properties of super- conducting micro-networks [1-3], see also [4]. This theoretical activity has beenL-277 Magnetic phase diagram of small superconducting two-loop networks J. Riess Centre de

Paris-Sud XI, Université de

344

Ground motion data for International Collider models  

SciTech Connect (OSTI)

The proposed location for the International Linear Collider (ILC) in the Americas region is Fermilab in Batavia Illinois. If built at this location the tunnels would be located in the Galena Platteville shale at a depth of 100 or more meters below the surface. Studies using hydro static water levels and seismometers have been conducted in the MINOS hall and the LaFrange Mine in North Aurora Illinois to determine the level of ground motion. Both these locations are in the Galena Platteville shale and indicate the typical ground motion to be expected for the ILC. The data contains both natural and cultural noise. Coefficients for the ALT law are determined. Seismic measurements at the surface and 100 meters below the surface are presented.

Volk, J.T.; LeBrun, P.; Shiltsev, V.; Singatulin, S.; /Fermilab

2007-11-01T23:59:59.000Z

345

SRS Burial Ground Complex: Remediation in Progress  

SciTech Connect (OSTI)

Closure of the various areas in the Burial Ground Complex (BGC) represents a major step in the reduction of risk at the Savannah River Site (SRS) and a significant investment of resources. The Burial Ground Complex occupies approximately 195 acres in the central section of the SRS. Approximately 160 acres of the BGC consists of hazardous and radioactive waste disposal sites that require remediation. Of these source acres, one-third have been remediated while two-thirds are undergoing interim or final action. These restoration activities have been carried out in a safe and cost effective manner while minimizing impact to operating facilities. Successful completion of these activities is in large part due to the teamwork demonstrated by the Department of Energy, contractor/subcontractor personnel, and the regulatory agencies. The experience and knowledge gained from the closure of these large disposal facilities can be used to expedite closure of similar facilities.

Griffin, M. [Westinghouse Savannah River Company, AIKEN, SC (United States); Crapse, B.; Cowan, S.

1998-01-21T23:59:59.000Z

346

Compression of ground-motion data  

SciTech Connect (OSTI)

Ground motion data has been recorded for many years at Nevada Test Site and is now stored on thousands of digital tapes. The recording format is very inefficient in terms of space on tape. This report outlines a method to compress the data onto a few hundred tapes while maintaining the accuracy of the recording and allowing restoration of any file to the original format for future use. For future digitizing a more efficient format is described and suggested.

Long, J.W.

1981-04-01T23:59:59.000Z

347

R/Blkstripe CTB Ground Strap  

E-Print Network [OSTI]

5 5 4 4 3 3 2 2 1 1 D D C C B B A A Orange Black Yellow Blue R/Blkstripe Tan Red CTB Ground Strap Title Size Document Number R ev Date: Sheet o f ? ToFr 2003_S Run 4 L.V Setup Rice. U. Bonner Lab B 1 1, Limited (picoFuse) @ 3.0 A 7x"VNTC"#14awgrated17A Actualoperating=7.7Amax. LOW VOLTAGE SUPPLY SETTINGS

Llope, William J.

348

Ground motion: An introduction for accelerator builders  

SciTech Connect (OSTI)

In this seminar we will review some of the characteristics of the major classes of ground motion in order to determine whether their effects must be considered or place fundamental limits on the sitting and/or design of modern storage rings and linear colliders. The classes discussed range in frequency content from tidal deformation and tectonic motions through earthquakes and microseisms. Countermeasures currently available are briefly discussed.

Fischer, G.E.

1992-02-01T23:59:59.000Z

349

Sprites, elf transients, and positive ground strokes  

SciTech Connect (OSTI)

In two summertime mesoscale convective systems (MCSs), mesospheric optical sprite phenomena were often coincident with both large-amplitude positive cloud-to-ground lightning and transient Schumann resonance excitations of the entire Earth-ionosphere cavity. These observations, together with earlier studies of MCS electrification, suggest that sprites are triggered when the rapid removal of large quantities of positive charge from an areally extensive charge layer stresses the mesosphere to dielectric breakdown. 46 refs., 7 figs., 1 tab.

Boccippio, D.J.; Boldi, R.; Williams, E.R. [Massachusetts Inst. of Technology, Cambridge, MA (United States)] [and others

1995-08-25T23:59:59.000Z

350

PHYSICAL PROPERTIES OF COOLING PLASMA IN QUIESCENT ACTIVE REGION LOOPS  

SciTech Connect (OSTI)

In the present work, we use SOHO/SUMER, SOHO/UVCS, SOHO/EIT, SOHO/LASCO, STEREO/EUVI, and Hinode/EIS coordinated observations of an active region (AR 10989) at the west limb taken on 2008 April 8 to study the cooling of coronal loops. The cooling plasma is identified using the intensities of SUMER spectral lines emitted at temperatures in the 4.15 {<=} log T {<=} 5.45 range. EIS and SUMER spectral observations are used to measure the physical properties of the loops. We found that before cooling took place these loops were filled with coronal hole-like plasma, with temperatures in the 5.6 {<=} log T {<=} 5.9 range. SUMER spectra also allowed us to determine the plasma temperature, density, emission measure, element abundances, and dynamic status during the cooling process. The ability of EUVI to observe the emitting region from a different direction allowed us to measure the volume of the emitting region and estimate its emission measure. Comparison with values measured from line intensities provided us with an estimate of the filling factor. UVCS observations of the coronal emission above the active region showed no streamer structure associated with AR 10989 at position angles between 242{sup 0}and 253.{sup 0} EIT, LASCO, and EUVI-A narrowband images and UVCS spectral observations were used to discriminate between different scenarios and monitor the behavior of the active region in time. The present study provides the first detailed measurements of the physical properties of cooling loops, a very important benchmark for theoretical models of loop cooling and condensation.

Landi, E. [Artep, Inc. at Naval Research Laboratory, 4555 Overlook Ave. S.W., 20375-5320, Washington DC (United States); Miralles, M. P. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., MS-50, Cambridge, MA 02138 (United States); Curdt, W. [Max Planck Institut fuer Sonnensystemforschung, Max Planck Strasse 2, Katlenburg-Lindau 37191 (Germany); Hara, H. [National Astronomical Observatory of Japan, Osawa, Mitaka, Tokyo 181-8588 (Japan)

2009-04-10T23:59:59.000Z

351

Preliminary results of a dynamic system model for a closed-loop Brayton cycle coupled to a nuclear reactor.  

SciTech Connect (OSTI)

This paper describes preliminary results of a dynamic system model for a closed-loop Brayton-cycle that is coupled to a nuclear reactor. The current model assumes direct coupling between the reactor and the Brayton-cycle, however only minor additions are required to couple the Brayton-cycle through a heat exchanger to either a heat pipe reactor or a liquid metal cooled reactor. Few reactors have ever been coupled to closed Brayton-cycle systems. As such their behavior under dynamically varying loads, startup and shut down conditions, and requirements for safe and autonomous operation are largely unknown. Sandia National Laboratories has developed steady-state and dynamic models for closed-loop turbo-compressor systems (for space and terrestrial applications). These models are expected to provide a basic understanding of the dynamic behavior and stability of the coupled reactor and power generation loop. The model described in this paper is a lumped parameter model of the reactor, turbine, compressor, recuperator, radiator/waste-heat-rejection system and generator. More detailed models that remove the lumped parameter simplifications are also being developed but are not presented here. The initial results of the model indicate stable operation of the reactor-driven Brayton-cycle system and its ability to load-follow. However, the model also indicates some counter-intuitive behavior for the complete coupled system. This behavior will require the use of a reactor control system to select an appropriate reactor operating temperature that will optimize the performance of the complete spacecraft system. We expect this model and subsequent versions of it to provide crucial information in developing procedures for safe start up, shut down, safe-standby, and other autonomous operating modes. Ultimately, Sandia hopes to validate these models and to perform nuclear ground tests of reactor-driven closed Brayton-cycle systems in our nuclear research facilities.

Wright, Steven Alan

2003-06-01T23:59:59.000Z

352

The naval Research Laboratory has been actively involved in research in unmanned and autonomous systems since its opening in 1923. From one of the first unmanned  

E-Print Network [OSTI]

systems since its opening in 1923. From one of the first unmanned ground vehicles to the developmentThe naval Research Laboratory has been actively involved in research in unmanned and autonomous of more than 200 prototype air, ground, underwater, and space platforms, and from smart sensors to smart

353

Multiplexed readout demonstration of a TES-based detector array in a resistance locked loop  

E-Print Network [OSTI]

TES-based bolometer and microcalorimeter arrays with thousands of pixels are under development for several space-based and ground-based applications. A linear detector response and low levels of cross talk facilitate the calibration of the instruments. In an effort to improve the properties of TES-based detectors, fixing the TES resistance in a resistance-locked loop (RLL) under optical loading has recently been proposed. Earlier theoretical work on this mode of operation has shown that the detector speed, linearity and dynamic range should improve with respect to voltage biased operation. This paper presents an experimental demonstration of multiplexed readout in this mode of operation in a TES-based detector array with noise equivalent power values (NEP) of $3.5\\cdot 10^{-19} $W/$\\sqrt{\\mathrm{Hz}}$. The measured noise and dynamic properties of the detector in the RLL will be compared with the earlier modelling work. Furthermore, the practical implementation routes for future FDM systems for the readout of ...

van der Kuur, Jan; Kiviranta, Mikko; Akamatsu, Hiroki; Khosropanah, Pourya; Hartog, Roland den; Suzuki, Toyoaki; Jackson, Brian

2015-01-01T23:59:59.000Z

354

Lab 3: Fading Lab This lab introduces for loops and while loops through control of LEDs, piezo buzzers, and  

E-Print Network [OSTI]

the same actions with the two loops. Materials 1) Arduino Uno 2) MakeBlock Shield 3) 1 Ã? LED 4) 1 Ã? 220 on top of the Arduino. This device provides simple phone cord connections (RJ25) between ports SOURCE BEFORE CHECKING WITH TAs). Supplying too much power and wrong connections can damage the Arduino

Wedeward, Kevin

355

A Simple and Quick Chilled Water Loop Balancing for Variable Flow System  

E-Print Network [OSTI]

For many modem buildings, the chilled water loops and risers are equipped with variable speed pumping systems. How to quickly balance the loop or riser to satisfy the cooling requirement and reduce energy consumption is a very interesting topic...

Zhu, Y.; Batten, T.; Turner, W. D.; Claridge, D. E.; Liu, M.

2000-01-01T23:59:59.000Z

356

SU(2) Lattice Gauge Theory- Local Dynamics on Non-intersecting Electric flux Loops  

E-Print Network [OSTI]

We use Schwinger Bosons as prepotentials for lattice gauge theory to de?ne local linking oper- ators and calculate their action on linking states for 2 + 1 dimensional SU(2) lattice gauge theory. We develop a diagrammatic technique and associate a set of (lattice Feynman) rules to compute the entire loop dynamics diagrammatically. The physical loop space is shown to contain only non- intersecting loop con?gurations after solving the Mandelstam constraint. The smallest plaquette loops are contained in the physical loop space and other con?gurations are generated by the action of a set of fusion operators on this basic loop states enabling one to charaterize any arbitrary loop by the basic plaquette together with the fusion variables. Consequently, the full Kogut-Susskind Hamiltonian and the dynamics of all possible non-intersecting physical loops are formulated in terms of these fusion variables.

Ramesh Anishetty; Indrakshi Raychowdhury

2014-11-12T23:59:59.000Z

357

Extreme ultra-violet emission from coronal loop structures. Technical report  

SciTech Connect (OSTI)

We calculate the XUV line and broad-band emission from a model active-region loop. The spectrum is found to be sensitive to both the coronal heating rate and to the loop geometry.

Tucker, W.H.

1980-07-01T23:59:59.000Z

358

Possible Regulatory Role for the Histidine-Rich Loop in the Zinc...  

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

Regulatory Role for the Histidine-Rich Loop in the Zinc Transport Protein, ZnuA. Possible Regulatory Role for the Histidine-Rich Loop in the Zinc Transport Protein, ZnuA. Abstract:...

359

Development of a Water Loop Simulation at the Texas A&M University Main Campus  

E-Print Network [OSTI]

A computer simulation model is an economic and convenient tool to perform analysis of chilled water loop. The primary objective of this paper is developing procedure for simulating and optimizing chilled water loop with computer simulation model. A...

Xue, H.; Deng, S.; Claridge, D. E.; Liu, M.

2000-01-01T23:59:59.000Z

360

Open Burning (New Mexico)  

Broader source: Energy.gov [DOE]

The New Mexico Environment Department's Air Quality Bureau regulates the open burning rules established by the Environmental Improvement Board. These rules are established to protect public health...

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

An Open String Landscape  

E-Print Network [OSTI]

The effect of fluxes on open string moduli is studied by analyzing the constraints imposed by supersymmetry on D-branes in type IIB flux backgrounds. We show that generically the conditions of supersymmetry cannot be maintained when moving along the geometrical moduli space of the brane, so that open string moduli are lifted. We argue that there is a disconnected and discrete set of supersymmetric solutions to the open string equations of motion, which extends the familiar closed string landscape to the open string sector.

Jaume Gomis; Fernando Marchesano; David Mateos

2005-11-16T23:59:59.000Z

362

Factors controlling tungsten concentrations in ground water, Carson Desert, Nevada  

E-Print Network [OSTI]

Factors controlling tungsten concentrations in ground water, Carson Desert, Nevada Ralph L. Seiler sources. Tungsten concentrations in 100 ground water samples from all aquifers used as drinking water indicates that W exhibits Tungsten con- centrations are strongly and positively correlated

363

Talking In Circles: Designing A Spatially-Grounded Audioconferencing Environment  

E-Print Network [OSTI]

to become a popular medium for social interaction. Traditional chat environments, however, are limitedTalking In Circles: Designing A Spatially-Grounded Audioconferencing Environment Roy Rodenstein, a multimodal audioconferencing environment whose novel design emphasizes spatial grounding with the aim

364

The Design of Ground-Coupled Heat Pump Systems  

E-Print Network [OSTI]

Ground-coupled heat pumps are being installed in increasing numbers due to proven performance and economy. The overall thermal resistance between the ground coupling fluid and a given type of surrounding soil is affected by pipe material, wall...

Parker, J. D.

1985-01-01T23:59:59.000Z

365

P a g e | 1 Why can wind delay the shedding of Loop Current eddies?1  

E-Print Network [OSTI]

a g e | 4 intrudes northward into the Gulf along the Campeche Bank's eastern shelfbreak, and loops44

366

RELAP-7: Demonstrating the integration of two-phase flow components for an ideal BWR loop  

SciTech Connect (OSTI)

This is DOE Level 3 milestone report documenting RELAP-7's capability to simulate an ideal BWR loop.

Hongbin Zhang; Haihua Zhao; Ling Zou; David Andrs; John Peterson; Ray Berry; Richard Martineua

2013-06-01T23:59:59.000Z

367

Recommendation 195: Mitigation of Contamination in Bear Creek Burial Grounds  

Broader source: Energy.gov [DOE]

The ORSSAB requests DOE provide possible remedial actions to mitigate releases of contamination from Bear Creek Burial Grounds.

368

Cooperative heat transfer and ground coupled storage system  

DOE Patents [OSTI]

A cooperative heat transfer and ground coupled storage system wherein collected solar heat energy is ground stored and permitted to radiate into the adjacent ground for storage therein over an extended period of time when such heat energy is seasonally maximally available. Thereafter, when said heat energy is seasonally minimally available and has propagated through the adjacent ground a substantial distance, the stored heat energy may be retrieved by a circumferentially arranged heat transfer means having a high rate of heat transfer.

Metz, Philip D. (Rocky Point, NY)

1982-01-01T23:59:59.000Z

369

What is stopping Carbon Capture Utilization and Storage from closing the carbon loop?  

E-Print Network [OSTI]

What is stopping Carbon Capture Utilization and Storage from closing the carbon loop? The social not work to close the loop, but simply maintain the amount of carbon consumed and emitted. Direct Air these sectors, direct air capture could provide a route for closing the carbon loop in the transportation sector

370

An inverse correlation between loop length and stability in a four-helix-bundle protein  

E-Print Network [OSTI]

their intrinsic func- tionality upon their new environmental context: the calcium-binding activity of a loop has the molten globule behavior of apo- - lactalbumin in the absence of calcium [18]. Conversely, loops have beenAn inverse correlation between loop length and stability in a four-helix-bundle protein Athena D

Mochrie, Simon

371

Host Range and Variability of Calcium Binding by Surface Loops in the Capsids of Canine and  

E-Print Network [OSTI]

Host Range and Variability of Calcium Binding by Surface Loops in the Capsids of Canine and Feline, consisting of residues 359 to 375 of the capsid protein. This loop binds a divalent calcium ion in FPV and in the presence or absence of Ca2 . The largest structural difference was found to occur in a ¯exible surface loop

Rossmann, Michael G.

372

Comprehensive computational model of single-and dual-loop optoelectronic  

E-Print Network [OSTI]

Comprehensive computational model of single- and dual-loop optoelectronic oscillators describe a comprehensive computational model for single- loop and dual-loop optoelectronic oscillators amplifiers and oscillators; (230.0250) Optoelectronics; (230.4910) Oscillators. References and links 1. X. S

Horowitz, Moshe

373

Model Free Closed-Loop Flow Control ERCAN ATAM, LIONEL MATHELIN, LAURENT CORDIER  

E-Print Network [OSTI]

Model Free Closed-Loop Flow Control ERCAN ATAM, LIONEL MATHELIN, LAURENT CORDIER *CNRS- Mathelin-Cordier (LIMSI-CNRS,IP') Model Free Closed-Loop Flow Control ECCOMAS'12 1 / 21 #12;Outline 1 and some future work Atam- Mathelin-Cordier (LIMSI-CNRS,IP') Model Free Closed-Loop Flow Control ECCOMAS'12

Mathelin, Lionel

374

Effective SU(2) Polyakov Loop Theories with Heavy Quarks on the Lattice  

E-Print Network [OSTI]

We compare SU(2) Polyakov loop models with different effective actions with data from full two-color QCD simulations around and above the critical temperature. We then apply the effective theories at finite temperature and density to extract quantities like Polyakov loop correlators, effective Polyakov loop potentials and baryon density.

Philipp Scior; David Scheffler; Dominik Smith; Lorenz von Smekal

2014-12-22T23:59:59.000Z

375

The Distribution of Loop Lengths in Graphical Models for Turbo Decoding  

E-Print Network [OSTI]

1 The Distribution of Loop Lengths in Graphical Models for Turbo Decoding Xianping Ge, David model for a K = 6, N = 12, rate 1=2 turbo code. Abstract| This paper analyzes the distribution of loop lengths in graphical models for turbo decoding. The prop- erties of such loops are of signi#12;cant

Smyth, Padhraic

376

Capture of vacancies by extrinsic dislocation loops in silicon S. B. Herner,a)  

E-Print Network [OSTI]

Capture of vacancies by extrinsic dislocation loops in silicon S. B. Herner,a) H.-J. Gossmann, F. H of vacancies in Si by a band of extrinsic dislocation loops has been observed in Sb doping superlattices of vacancies, which enhances the diffusion of Sb spikes located between the surface and loop band

Florida, University of

377

Vacancy clustering and prismatic dislocation loop formation in aluminum Vikram Gavini  

E-Print Network [OSTI]

Vacancy clustering and prismatic dislocation loop formation in aluminum Vikram Gavini Department vacancy clusters with smaller and smaller energy. Further, the results show that a seven vacancy cluster that vacancy clustering leads to prismatic loop, and that these loops can be stable at extremely small sizes

Bhattacharya, Kaushik

378

Synthesizing Transformations for Locality Enhancement of Imperfectly-nested Loop Nests  

E-Print Network [OSTI]

Synthesizing Transformations for Locality Enhancement of Imperfectly-nested Loop Nests Nawaaz Ahmed in imperfectly-nested loops. The key idea is to em- bed the iteration space of every statement in a loop nest into a spe- cial iteration space called the product space. The product space can be viewed as a perfectly-nested

Pingali, Keshav K.

379

On Termination and Derivation Lengths for Ground Rewrite Systems  

E-Print Network [OSTI]

On Termination and Derivation Lengths for Ground Rewrite Systems Dieter Hofbauer 1 Universit¨at GH@theory.informatik.uni­kassel.de Abstract. It is shown that for terminating ground term rewrite systems the length of derivations a suitable interpretation into the natural numbers. Terminating ground systems are not necessarily

Giesl, Juergen

380

Overcoming Barriers to Ground Source Heat Pumps in California  

E-Print Network [OSTI]

Overcoming Barriers to Ground Source Heat Pumps in California Geothermal Resources Development Account http://www.energy.ca.gov/geothermal/ grda.html May 2011 The Issue Ground source heat pumps can far made little impact in California. Estimates are that adoption of ground source heat pumps

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Basic Ground-Water Hydrology By RALPH C. HEATH  

E-Print Network [OSTI]

#12;Basic Ground-Water Hydrology By RALPH C. HEATH Prepared in cooperation with the North Carolina., 1983, Basic ground-water hydrology: U .S. Geological Survey Water-Supply Paper 2220, 86 p. Library of Congress Cataloging-in-Publications Data Heath, Ralph C . Basic ground-water hydrology (Geological Survey

Sohoni, Milind

382

ADVANCES IN MODELING OF GROUND-SOURCE HEAT  

E-Print Network [OSTI]

ADVANCES IN MODELING OF GROUND-SOURCE HEAT PUMP SYSTEMS By ANDREW D. CHIASSON Bachelor of Applied 1999 #12;ii ADVANCES IN MODELING OF GROUND-SOURCE HEAT PUMP SYSTEMS Thesis Approved: Thesis Adviser..............................................................................................................1 1.1. Overview of Ground-Source Heat Pump Systems ..............................................1 1

383

DESIGN OF AN EXPERIMENTAL FACILITY FOR HYBRID GROUND SOURCE HEAT  

E-Print Network [OSTI]

DESIGN OF AN EXPERIMENTAL FACILITY FOR HYBRID GROUND SOURCE HEAT PUMP SYSTEMS By SHAWN ALEX HERN.1 HYBRID GROUND SOURCE HEAT PUMP SYSTEM DESIGN........................................2-3 2.1.1 Design...............................................................................2-5 2.2 HYBRID GROUND SOURCE HEAT PUMP SYSTEM SIMULATION................................2-9 3

384

APPLICATIONS OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS TO  

E-Print Network [OSTI]

APPLICATIONS OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS TO BUILDINGS AND BRIDGE DECKS. By MAHADEVAN Chapter Page 1. Introduction 1.1. Overview of hybrid ground source heat pump systems 1.2. Literature review 1.3. Thesis objective and scope 2. Optimal sizing of hybrid ground source heat pump system

385

Regional Estimation of Total Recharge to Ground Water in Nebraska  

E-Print Network [OSTI]

)over long periods of time when the potential change in ground water storage becomes negligible compared storage other than discharge to streams. One such loss term is evapotranspiration (ET) from ground waterRegional Estimation of Total Recharge to Ground Water in Nebraska by Jozsef Szilagyi1m2,F. Edwin

Szilagyi, Jozsef

386

Materialized community ground models for large-scale earthquake simulation  

E-Print Network [OSTI]

Materialized community ground models for large-scale earthquake simulation Steven W. Schlosser to ground motion sim- ulations, in which ground model datasets are fully materi- alized into octress stored as a service techniques in which scientific computation and storage services become more tightly intertwined. 1

Shewchuk, Jonathan

387

DEVELOPMENTS IN GROUND WATER HYDROLOGY : AN OVERVIEW C. P. Kumar  

E-Print Network [OSTI]

. Surface water storage and ground water withdrawal are traditional engineering approaches which of storage and circulation as ground water. The large alluvial tract extending over 2000 km in length from which allows ground water storage in the weathered residium and its circulation in the underlying

Kumar, C.P.

388

OpenEI:Projects | 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 CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty, Michigan: EnergyOpenBarter Jump to:source HistoryOpenEI Projects

389

OpenEI and Linked Open Data  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLCDiesel Engines |Open Source Software Update Open

390

Demystifying Open Access  

SciTech Connect (OSTI)

The tenets of Open Access are to grant anyone, anywhere and anytime free access to the results of scientific research. HEP spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-WWW era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access while retaining all the advantages of the peer-review system and, at the same time, bring the spiralling cost of journal subscriptions under control. I will present a possible plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. The current system in which journals income comes from subscription fees is replaced with a scheme where SCOAP3 compensates publishers for the costs incurred to organise the peer-review service and give Open Access to the final version of articles. SCOAP3 will be funded by all countries active in HEP under a 'fair share' scenario, according to their production of HEP articles. In this talk I will present a short overview of the history of Open Access in HEP, the details of the SCOAP3 model and the outlook for its implementation.

Mele, Salvatore

2007-05-14T23:59:59.000Z

391

Airborne protected military satellite communications : analysis of open-loop pointing and closed-loop tracking with noisy platform attitude information  

E-Print Network [OSTI]

U.S. military assets' increasing need for secure global communications has led to the design and fabrication of airborne satellite communication terminals that operate under protected security protocol. Protected transmission ...

Deike, William D

2010-01-01T23:59:59.000Z

392

Photovoltaic module mounting clip with integral grounding  

DOE Patents [OSTI]

An electrically conductive mounting/grounding clip, for use with a photovoltaic assembly of the type having an electrically conductive frame, comprises an electrically conductive body. The body has a central portion and first and second spaced-apart arms extending generally perpendicular to the central portion. Each arm has an outer portion with each outer portion having an outer end. At least one frame surface-disrupting element is at each outer end. The central portion defines a plane with the frame surface-disrupting elements pointing towards the plane. In some examples each arm extends from the central portion at an acute angle to the plane.

Lenox, Carl J.

2008-10-14T23:59:59.000Z

393

Coal mine ground control. 3rd ed.  

SciTech Connect (OSTI)

The third edition not only completely revises and updates the original subject areas, but also is broadened to include a number of new topics such as high horizontal stresses, computer modeling, and highwall stability. The subject areas covered in this book define the current field of coal mine ground control, except for the recently emerging topic of mine seals and some conventional subjects such as coal/rock cutting and impoundment dams. It contains 1,134 references from all published sources, and archived since 1876.

Peng, S.S.

2008-09-15T23:59:59.000Z

394

Geometric renormalization below the ground state  

E-Print Network [OSTI]

The caloric gauge was introduced by Tao with studying large data energy critical wave maps mapping from $\\mathbf{R}^{2+1}$ to hyperbolic space $\\mathbf{H}^m$ in view. In \\cite{BIKT} Bejenaru, Ionescu, Kenig, and Tataru adapted the caloric gauge to the setting of Schr\\"odinger maps from $\\mathbf{R}^{d + 1}$ to the standard sphere $S^2 \\hookrightarrow \\mathbf{R}^3$ with initial data small in the critical Sobolev norm. Here we develop the caloric gauge in a bounded geometry setting with a construction valid up to the ground state energy.

Paul Smith

2011-12-06T23:59:59.000Z

395

Best Possible Strategy for Finding Ground States  

SciTech Connect (OSTI)

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

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

2001-06-04T23:59:59.000Z

396

Ground-Based Microwave Radiometer Measurements  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGetGraphene's 3DRise |EnergyVehicles andGround-Based

397

On Resumming Inflationary Perturbations beyond One-loop  

E-Print Network [OSTI]

It is well known that the correlation functions of a scalar field in a quasi-de Sitter space exhibit at the loop level cumulative infra-red effects proportional to the total number of e-foldings of inflation. Using the in-in formalism, we explore the behavior of these infra-red effects in the large N limit of an O(N) invariant scalar field theory with quartic self-interactions. By resumming all higher-order loop diagrams non-perturbatively, we show that the connected four-point correlation function, which is a signal of non-Gaussianity, is non-perturbatively enhanced with respect to its tree-level value.

Antonio Riotto; Martin S. Sloth

2008-04-08T23:59:59.000Z

398

On the Blue Loops of Intermediate-Mass Stars  

E-Print Network [OSTI]

We consider the blue loops in the Hertzsprung-Russell diagram that occur when intermediate-mass stars begin core helium burning. It has long been known that the excess of helium above the burning shell, the result of the contraction of the convective core during core hydrogen burning, has the effect of making such stars redder and larger than they would be otherwise. The outward motion of the burning shell in mass removes this excess and triggers the loop. Hitherto nobody has attempted to demonstrate why the excess helium has this effect. We consider the effect of the local opacity, which is reduced by excess helium, the shell fuel supply, which is also reduced, and the local mean molecular weight, which is increased. We demonstrate that the mean molecular weight is the decisive reddening factor. The opacity has a much smaller effect and a reduced fuel supply actually favours blueward motion.

Walmswell, J J; Eldridge, J J

2015-01-01T23:59:59.000Z

399

120 Ground Water Monitoring & Remediation 32, no. 1/ Winter 2012/pages 120130 NGWA.org Ground Water Monitoring & Remediation  

E-Print Network [OSTI]

120 Ground Water Monitoring & Remediation 32, no. 1/ Winter 2012/pages 120­130 NGWA.org Ground Water Monitoring & Remediation © 2011, National Ground Water Association. Published 2011. This article known as emerging contaminants (ECs) to surrounding groundwater and surface water. ECs consist

400

Renormalization and black hole entropy in Loop Quantum Gravity  

E-Print Network [OSTI]

Microscopic state counting for a black hole in Loop Quantum Gravity yields a result proportional to horizon area, and inversely proportional to Newton's constant and the Immirzi parameter. It is argued here that before this result can be compared to the Bekenstein-Hawking entropy of a macroscopic black hole, the scale dependence of both Newton's constant and the area must be accounted for. The two entropies could then agree for any value of the Immirzi parameter, if a certain renormalization property holds.

Ted Jacobson

2007-08-25T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

"Closed-loop" analysis of a thermo-charged capacitor  

E-Print Network [OSTI]

In this Letter, an explicit application of conservation of energy and zero net work principle around a closed path ("closed-loop" analysis) is carried out on a thermo-charged capacitor at equilibrium with ambient heat at uniform temperature. This analysis corroborates the results of previous studies [Phys.Lett.A 374 (2010) 1801, Physica A 390 (2011) 481] that a potential drop $\\Delta V$ does actually occur at capacitor terminals.

Germano D'Abramo

2014-05-02T23:59:59.000Z

402

Higher rank Wilson loops from a matrix model  

E-Print Network [OSTI]

We compute the circular Wilson loop of N=4 SYM theory at large N in the rank k symmetric and antisymmetric tensor representations. Using a quadratic Hermitian matrix model we obtain expressions for all values of the 't Hooft coupling. At large and small couplings we give explicit formulae and reproduce supergravity results from both D3 and D5 branes within a systematic framework.

Sean A. Hartnoll; S. Prem Kumar

2006-05-16T23:59:59.000Z

403

Heliostat System with Wireless Closed-Loop Control  

Broader source: Energy.gov [DOE]

This fact sheet summarizes a SunShot Initiative project led by Thermata to develop and demonstrate the first practical heliostat to use closed-loop tracking that can optically sense and control the reflected sunlight beam at the target. The expected benefits of this system include the reduction in the total installed cost of the heliostat field in a power tower concentrating solar power project.

404

Closed-loop air cooling system for a turbine engine  

DOE Patents [OSTI]

Method and apparatus are disclosed for providing a closed-loop air cooling system for a turbine engine. The method and apparatus provide for bleeding pressurized air from a gas turbine engine compressor for use in cooling the turbine components. The compressed air is cascaded through the various stages of the turbine. At each stage a portion of the compressed air is returned to the compressor where useful work is recovered.

North, William Edward (Winter Springs, FL)

2000-01-01T23:59:59.000Z

405

Measured Performance and Analysis of Ground Source Heat Pumps for Space Conditioning and for Water Heating in a Low-Energy Test House Operated under Simulated Occupancy Conditions  

SciTech Connect (OSTI)

In this paper we present measured performance and efficiency metrics of Ground Source Heat Pumps (GSHPs) for space conditioning and for water heating connected to a horizontal ground heat exchanger (GHX) loop. The units were installed in a 345m2 (3700ft2) high-efficiency test house built with structural insulated panels (SIPs), operated under simulated occupancy conditions, and located in Oak Ridge, Tennessee (USA) in US Climate Zone 4 . The paper describes distinctive features of the building envelope, ground loop, and equipment, and provides detailed monthly performance of the GSHP system. Space conditioning needs of the house were completely satisfied by a nominal 2-ton (7.0 kW) water-to-air GSHP (WA-GSHP) unit with almost no auxiliary heat usage. Recommendations for further improvement through engineering design changes are identified. The comprehensive set of data and analyses demonstrate the feasibility and practicality of GSHPs in residential applications and their potential to help achieve source energy and greenhouse gas emission reduction targets set under the IECC 2012 Standard.

Ally, Moonis Raza [ORNL] [ORNL; Munk, Jeffrey D [ORNL] [ORNL; Baxter, Van D [ORNL] [ORNL; Gehl, Anthony C [ORNL] [ORNL

2012-01-01T23:59:59.000Z

406

The novelty of Open Innovation.  

E-Print Network [OSTI]

?? Proponents of Open Innovation argue in support of its novel additions, critics however question its novelty and argue that the roots of Open Innovation… (more)

Altmann, Peter

2011-01-01T23:59:59.000Z

407

Lattice refining loop quantum cosmology, anisotropic models and stability  

E-Print Network [OSTI]

A general class of loop quantizations for anisotropic models is introduced and discussed, which enhances loop quantum cosmology by relevant features seen in inhomogeneous situations. The main new effect is an underlying lattice which is being refined during dynamical changes of the volume. In general, this leads to a new feature of dynamical difference equations which may not have constant step-size, posing new mathematical problems. It is discussed how such models can be evaluated and what lattice refinements imply for semiclassical behavior. Two detailed examples illustrate that stability conditions can put strong constraints on suitable refinement models, even in the absence of a fundamental Hamiltonian which defines changes of the underlying lattice. Thus, a large class of consistency tests of loop quantum gravity becomes available. In this context, it will also be seen that quantum corrections due to inverse powers of metric components in a constraint are much larger than they appeared recently in more special treatments of isotropic, free scalar models where they were artificially suppressed.

Martin Bojowald; Daniel Cartin; Gaurav Khanna

2007-04-09T23:59:59.000Z

408

Visualisations of coherent centre domains in local Polyakov loops  

E-Print Network [OSTI]

Quantum Chromodynamics exhibits a hadronic confined phase at low to moderate temperatures and, at a critical temperature $T_C$, undergoes a transition to a deconfined phase known as the quark-gluon plasma. The nature of this deconfinement phase transition is probed through visualizations of the Polyakov loop, a gauge independent order parameter. We produce visualizations that provide novel insights into the structure and evolution of center clusters. Using the HMC algorithm the percolation during the deconfinement transition is observed. Using 3D rendering of the phase and magnitude of the Polyakov loop, the fractal structure and correlations are examined. The evolution of the center clusters as the gauge fields thermalize from below the critical temperature to above it are also exposed. We observe deconfinement proceeding through a competition for the dominance of a particular center phase. We use stout-link smearing to remove small-scale noise in order to observe the large-scale evolution of the center clusters. A correlation between the magnitude of the Polyakov loop and the proximity of its phase to one of the center phases of SU(3) is evident in the visualizations.

Finn M. Stokes; Waseem Kamleh; Derek B. Leinweber

2014-06-12T23:59:59.000Z

409

A solar active region loop compared with a 2D MHD model  

E-Print Network [OSTI]

We analyzed a coronal loop observed with the Normal Incidence Spectrometer (NIS), which is part of the Coronal Diagnostic Spectrometer (CDS) on board the Solar and Heliospheric Observatory (SOHO). The measured Doppler shifts and proper motions along the selected loop strongly indicate unidirectional flows. Analysing the Emission Measure Curves of the observed spectral lines, we estimated that the temperature along the loop was about 380000 K. We adapted a solution of the ideal MHD steady equations to our set of measurements. The derived energy balance along the loop, as well as the advantages/disadvantages of this MHD model for understanding the characteristics of solar coronal loops are discussed.

C. Gontikakis; G. J. D. Petrie; H. C. Dara; K. Tsinganos

2005-03-31T23:59:59.000Z

410

Evidence for ground-water circulation in the brine-filled aquitard, Oak Ridge, Tennessee  

SciTech Connect (OSTI)

Various geologic, hydrologic, and geochemical methods were used to assess active ground-water circulation in a brine-filled, deep (> 50 m below land surface) aquitard underlying the Oak Ridge Reservation, Tennessee. In places, the brine which was presumed to be stagnant in the past, contains various contaminants. If ground-water circulation is viable in the brine-containing formations, then remediation or containment of the deep-seated contaminants should be considered a high priority. Data used to determine this included (1) spatial and temporal pressures and hydraulic heads measured in the aquitard, (2) hydraulic parameters of the formations in question, (3) vertical temperature gradients, and (4) spatial and temporal chemical and isotopic composition of the saline ground water. Conclusions suggest that the saline water contained at depth is not isolated (in terms of recharge and discharge) from the overlying active and fresh-water-(< 500 mg/l) bearing units. Consequently, influx of young water (and contamination) from land surface does occur. Potential discharge into the shallow aquifers was assumed where the hydraulic head of the saline water was higher than that in the shallow aquifers, accounting for temperature and salinity anomalies observed close to land surface. The confined water (and dissolved solutes) move along open conduits at relatively high velocity into adjacent, more permeable units.

Nativ, R. [Hebrew Univ. of Jerusalem (Israel). Dept. of Soil and Water Sciences; Halleran, A.; Hunley, A. [Oak Ridge National Lab., TN (United States). Environmental Sciences Div.

1997-07-01T23:59:59.000Z

411

1) To start with, some LC3 looping fun. Start the LC3 simulator, set the PC to x3000, and enter the following into memory (starting at x3000).  

E-Print Network [OSTI]

work? Isn't this easier than doing all the grungy math by hand? 4) Arduino fun time. There are some 8ohm speakers in the lab. Connect the Arduino, open up the example sketch Examples/Digital/ToneMelody. Take one wire from the speaker, and place it in a socket for ground on your Arduino, and take the other

Madden, Patrick H.

412

Rebuilding After Disaster: Going Green from the Ground Up | Open Energy  

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 Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType Jump to:Co JumpRETScreen Logo: RangeReEDS

413

Oblique Aerial & Ground Visible Band & Thermographic Imaging | Open Energy  

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 CenterFranconia, Virginia: Energy ResourcesLoading map...(Utility Company)ReferencesNuiqsut,Place,Oakmont,Obion County, Tennessee:

414

Ground Gravity Survey At Cove Fort Area (Toksoz, Et Al, 2010) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.GroomInformation Toksoz, Et

415

Ground Gravity Survey At Crump's Hot Springs Area (DOE GTP) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.GroomInformation

416

Ground Gravity Survey At Fort Bliss Area (DOE GTP) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.GroomInformation|

417

Ground Gravity Survey At Glass Buttes Area (DOE GTP) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in

418

Ground Magnetics At Cove Fort Area (Warpinski, Et Al., 2004) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986) |

419

Ground Magnetics At Crump's Hot Springs Area (DOE GTP) | Open Energy  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986) |Information

420

Ground Magnetics At Neal Hot Springs Geothermal Area (Shaltry, 2012) | Open  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county inAl., 1979) |Haar, 1986)Energy

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

NMAC 20.6.2 Ground and Surface Water Protection | 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 CenterFranconia, Virginia: Energy Resources Jump to:46 -Energieprojekte3 ClimateSpurrInformation NAMA-ProgrammeNF EnergyNMCapacity2

422

5 CCR 1002-41 Basic Standards for Ground Water | 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 Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights, Substantive Jump to:Species |2008 |44 Basic Standards for

423

5 CCR 1002-42 Site Specific Water Quality Standards for Ground Water | Open  

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 Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights, Substantive Jump to:Species |2008 |44 Basic Standards

424

Geology: Ground water in Animas Valley, Hidalgo County, New Mexico | Open  

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 CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeauga County, Ohio: EnergySector:2008)theVolcano Jump to:GoldEnergy

425

ARM 17-30-10 - Ground Water Pollution Control System | Open Energy  

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 Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights,InformationWind Energy JumpEnergyApplication

426

File:04NVBTemporaryUseOfGroundWaterForExploration.pdf | Open Energy  

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 Home5b9fcbce19 NoPublic Utilities Address:011-DNAMTEEncroachmentPermit.pdf Jumpsource

427

Ground Gravity Survey At Clear Lake Area (Skokan, 1993) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation, search Name:Groton

428

Ground Gravity Survey At Cove Fort Area (Warpinski, Et Al., 2002) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation, searchEnergy

429

Ground Gravity Survey At Cove Fort Area (Warpinski, Et Al., 2004) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation, searchEnergyEnergy

430

Ground Gravity Survey At Hot Pot Area (DOE GTP) | 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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,

431

Ground Gravity Survey At Newberry Caldera Area (DOE GTP) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004) |

432

Ground Gravity Survey At Raft River Geothermal Area (1978) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004) |Information 8

433

Ground Gravity Survey At Truckhaven Area (Warpinski, Et Al., 2004) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004)

434

Ground Gravity Survey At U.S. West Region (Aiken & Ander, 1981) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004)Energy Information

435

Ground Magnetics At Cove Fort Area (Warpinski, Et Al., 2002) | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:

436

Ground Magnetics At Cove Fort Area - Vapor (Warpinski, Et Al., 2002) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information - Vapor

437

Ground Magnetics At Cove Fort Area - Vapor (Warpinski, Et Al., 2004) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information - VaporEnergy

438

Ground Magnetics At Kilauea East Rift Area (Leslie, Et Al., 2004) | Open  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy Information -

439

Ground radon survey of a geothermal area in Hawaii | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy InformationInformation

440

Ground water in Animas Valley, Hidalgo County, New Mexico | Open Energy  

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 Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to:Energy

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Heating and Dynamics of Two Flare Loop Systems Observed by AIA and EIS  

E-Print Network [OSTI]

We investigate heating and evolution of flare loops in a C4.7 two-ribbon flare on 2011 February 13. From SDO/AIA imaging observations, we can identify two sets of loops. Hinode/EIS spectroscopic observations reveal blueshifts at the feet of both sets of loops. The evolution and dynamics of the two sets are quite different. The first set of loops exhibits blueshifts for about 25 minutes followed by redshifts, while the second set shows stronger blueshifts, which are maintained for about one hour. The UV 1600 observation by AIA also shows that the feet of the second set of loops brighten twice. These suggest that continuous heating may be present in the second set of loops. We use spatially resolved UV light curves to infer heating rates in the few tens of individual loops comprising the two loop systems. With these heating rates, we then compute plasma evolution in these loops with the "enthalpy-based thermal evolution of loops" (EBTEL) model. The results show that, for the first set of loops, the synthetic EU...

Li, Y; Ding, M D

2013-01-01T23:59:59.000Z

442

Understanding open source in an industrial context Sven Ziemer, yvind Hauge and Thomas sterlie  

E-Print Network [OSTI]

of software development that will revolution- ize the software industry [2]. A recent addition to the onUnderstanding open source in an industrial context Sven Ziemer, Ã?yvind Hauge and Thomas Ã?sterlie source in an industrial context. Building a grounded theory from an industry-driven R&D project, our

443

Open Energy Info (OpenEI) (Fact Sheet)  

SciTech Connect (OSTI)

The Open Energy Information (OpenEI.org) initiative is a free, open-source, knowledge-sharing platform. OpenEI was created to provide access to data, models, tools, and information that accelerate the transition to clean energy systems through informed decisions.

Not Available

2010-12-01T23:59:59.000Z

444

Sensox | 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 CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty Ltd Jump to: navigation, search Name:OpenOpenInformation on GreenOpenSensox

445

OpenMP Resources  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recoveryLaboratorySpeeding access1 TechnicalOilOnline ApplicationOpenOpenMP » OpenMP

446

Wide band stepped frequency ground penetrating radar  

DOE Patents [OSTI]

A wide band ground penetrating radar system (10) embodying a method wherein a series of radio frequency signals (60) is produced by a single radio frequency source (16) and provided to a transmit antenna (26) for transmission to a target (54) and reflection therefrom to a receive antenna (28). A phase modulator (18) modulates those portion of the radio frequency signals (62) to be transmitted and the reflected modulated signal (62) is combined in a mixer (34) with the original radio frequency signal (60) to produce a resultant signal (53) which is demodulated to produce a series of direct current voltage signals (66) the envelope of which forms a cosine wave shaped plot (68) which is processed by a Fast Fourier Transform unit 44 into frequency domain data (70) wherein the position of a preponderant frequency is indicative of distance to the target (54) and magnitude is indicative of the signature of the target (54).

Bashforth, Michael B. (Buellton, CA); Gardner, Duane (Santa Maria, CA); Patrick, Douglas (Santa Maria, CA); Lewallen, Tricia A. (Ventura, CA); Nammath, Sharyn R. (Santa Barbara, CA); Painter, Kelly D. (Goleta, CA); Vadnais, Kenneth G. (Alexandria, VA)

1996-01-01T23:59:59.000Z

447

Severe Open Ankle Sprain  

E-Print Network [OSTI]

M EDICINE Severe Open Ankle Sprain Bridget A. Sinnott, MD*with complaints of right ankle pain. Twelve hours before, heand abrading his right ankle. He noted continued bleeding

Sinnott, Bridget A; Strote, Jared

2011-01-01T23:59:59.000Z

448

Open cycle thermoacoustics  

SciTech Connect (OSTI)

A new type of thermodynamic device combining a thermodynamic cycle with the externally applied steady flow of an open thermodynamic process is discussed and experimentally demonstrated. The gas flowing through this device can be heated or cooled in a series of semi-open cyclic steps. The combination of open and cyclic flows makes possible the elimination of some or all of the heat exchangers (with their associated irreversibility). Heat is directly exchanged with the process fluid as it flows through the device when operating as a refrigerator, producing a staging effect that tends to increase First Law thermodynamic efficiency. An open-flow thermoacoustic refrigerator was built to demonstrate this concept. Several approaches are presented that describe the physical characteristics of this device. Tests have been conducted on this refrigerator with good agreement with a proposed theory.

Reid, Robert Stowers

2000-01-01T23:59:59.000Z

449

Hydrogeologic Evaluation of a Ground-Source Cooling System at the BSF/CSF on the Battelle Campus: Final Report  

SciTech Connect (OSTI)

This report documents both the field characterization activities and the numerical modeling effort at the BSF/CSF site to determine the viability of an open-loop ground source heat pump (GSHP). The primary purpose of the integrated field and modeling study was to determine far-field impacts related to a non-consumptive use water right for the well field containing four extraction and four injection wells. In the field, boreholes were logged and used to develop the geologic conceptual model. Hydraulic testing was performed to identify hydraulic properties and determine sustainable pumping rates. Estimates of the Ringold hydraulic conductivity (60-150 m/d) at the BSF/CSF site were consistent with the local and regional hydrogeology as well as estimates previously published by other investigators. Sustainable pumping rates at the extraction wells were variable (100 – 700 gpm), and confirmed field observations of aquifer heterogeneity. Field data were used to develop a numerical model of the site. Simulations assessed the potential of the well field to impact nearby contaminant plumes, neighboring water rights, and the thermal regime of nearby surface water bodies. Using steady-state flow scenarios in conjunction with particle tracking, a radius of influence of 400–600 m was identified around the well field. This distance was considerably shorter than the distance to the closest contaminant plume (~1.2 km northwest to the DOE Horn Rapids Landfill) and the nearest water right holder (~1.2 km southeast to the City of Richland Well Field). Results demonstrated that current trajectories for nearby contaminant plumes will not be impacted by the operation of the GSHP well field. The objective of the energy transport analysis was to identify potential thermal impacts to the Columbia River under likely operational scenarios for the BSF/CSF well field. Estimated pumping rates and injection temperatures were used to simulate heat transport for a range of hydraulic conductivity estimates for the Ringold Formation. Two different operational scenarios were simulated using conservative assumptions, such as the absence of river water intrusion in the near shore groundwater. When seasonal injection of warm and cool water occurred, temperature impacts were insignificant at the Columbia River (< +0.2ºC), irrespective of the hydraulic conductivity estimate. The second operational scenario simulated continuous heat rejection, a condition anticipated once the BSF/CSF is fully loaded with laboratory and computer equipment. For the continuous heat rejection case, where hourly peak conditions were simulated as month-long peaks, the maximum change in temperature along the shoreline was ~1ºC. If this were to be interpreted as an absolute change in a static river temperature, it could be considered significant. However, the warmer-than-ambient groundwater flux that would potentially discharge to the Columbia River is very small relative to the flow in the river. For temperatures greater than 17.0ºC, the flow relative to a low-flow condition in the river is only 0.012%. Moreover, field data has shown that diurnal fluctuations in temperature are as high as 5ºC along the shoreline.

Freedman, Vicky L.; Mackley, Rob D.; Waichler, Scott R.; Horner, Jacob A.; Moon, Thomas W.; Newcomer, Darrell R.; DeSmet, Darrell J.; Lindsey, K. A.; Porcello, J. J.

2010-05-12T23:59:59.000Z

450

SEEAction | 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 Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType JumpJersey)Carbon Development | OpenS &

451

SERTRONIC | 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 Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType JumpJersey)Carbon Development | OpenS

452

JEA | 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 CenterFranconia, Virginia: Energy Resources Jump to:46 - 429 Throttled (botOpen Energy2005) | OpenIssaquenaItochuInformationJEA Jump

453

OpenBarter | 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 CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty, Michigan: EnergyOpenBarter Jump to: navigation, search Tool

454

OpenEI Dashboard | 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 CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty, Michigan: EnergyOpenBarter Jump to: navigation, search

455

Loop Quantum Gravity and Cosmology: A dynamical introduction  

E-Print Network [OSTI]

Loop quantum gravity and cosmology are reviewed with an emphasis on evaluating the dynamics, rather than constructing it. The three crucial parts of such an analysis are (i) deriving effective equations, (ii) controlling the theory's microscopic degrees of freedom that lead to its spatial discreteness and refinement, and (iii) ensuring consistency and anomaly-freedom. All three issues are crucial for making the theory testable by conceptual and observational means, and they remain challenging. Throughout this review, the Hamiltonian nature of the theory will play a large role for properties of space-time structure within the framework discussed.

Bojowald, Martin

2011-01-01T23:59:59.000Z

456

Toroidal Carbon Nanotubes with Encapsulated Atomic Metal Loops  

E-Print Network [OSTI]

Toroidal carbon nanotubes can serve as hosts for encapsulated loops of atomic metal wires. Such composite structures have been analyzed using density functional theory for a semiconducting C$_{120}$ torus encapsulating chains of Fe, Au and Cu atoms. The sheathed metal necklaces form a zigzag structure and drops the HOMO/LUMO bandgap to less than 0.1 eV. The iron composite is ferromagnetic with a magnetic moment essentially the same as that of bcc iron. The azimuthal symmetry of these toroidal composites suggests that they may offer novel elecromagnetic properties not associated with straight, metal-encapsulated carbon nanotubes.

Lusk, Mark T; 10.1103/PhysRevB.76.125422

2010-01-01T23:59:59.000Z

457

Numerical investigation of closed-loop control for Hall accelerators  

SciTech Connect (OSTI)

Low frequency discharge current oscillations in Hall accelerators are conventionally damped with external inductor-capacitor (LC) or resistor-inductor-capacitor (RLC) networks. The role of such network in the stabilization of the plasma discharge is investigated with a numerical model and the potential advantages of proportional-integral-derivative (PID) closed-loop control over RLC networks are subsequently assessed using either discharge voltage or magnetic field modulation. Simulations confirm the reduction of current oscillations in the presence of a RLC network, but suggest that PID control could ensure nearly oscillation-free operation with little sensitivity toward the PID settings.

Barral, S.; Miedzik, J. [Institute of Plasma Physics and Laser Microfusion, 01497 Warsaw (Poland)

2011-01-01T23:59:59.000Z

458

Loop Quantum Theory Applied to Biology and Nonlinear Whole Biology  

E-Print Network [OSTI]

The loop quantum theory, which constitutes a very small discontinuous space, as new method is applied to biology. The model of protein folding and lungs is proposed. In the model, some known results are used, and four approximate conclusions are obtained: their structures are quantized, their space regions are finite, various singularities correspond to folding and crossed points, and different types of catastrophe exist. Further, based on the inseparability and correlativity of the biological systems, the nonlinear whole biology is proposed, and four basic hypotheses are formed. It may unify reductionism and holism, structuralism and functionalism. Finally, the medical meaning of the theory is discussed briefly.

Yi-Fang Chang

2008-01-02T23:59:59.000Z

459

Rupture loop annex ion exchange RLAIX vault deactivation  

SciTech Connect (OSTI)

This engineering report documents the deactivation, stabilization and final conditions of the Rupture Loop Annex Ion Exchange (RLAIX) Vault located northwest of the 309 Building`s Plutonium Recycle Test Reactor (PRTR). Twelve ion exchange columns, piping debris, and column liquid were removed from the vault, packaged and shipped for disposal. The vault walls and floor were decontaminated, and portions of the vault were painted to fix loose contamination. Process piping and drains were plugged, and the cover blocks and rain cover were installed. Upon closure,the vault was empty, stabilized, isolated.

Ham, J.E.; Harris, D.L., Westinghouse Hanford

1996-08-01T23:59:59.000Z

460

System having unmodulated flux locked loop for measuring magnetic fields  

DOE Patents [OSTI]

A system (10) for measuring magnetic fields, wherein the system (10) comprises an unmodulated or direct-feedback flux locked loop (12) connected by first and second unbalanced RF coaxial transmission lines (16a, 16b) to a superconducting quantum interference device (14). The FLL (12) operates for the most part in a room-temperature or non-cryogenic environment, while the SQUID (14) operates in a cryogenic environment, with the first and second lines (16a, 16b) extending between these two operating environments.

Ganther, Jr., Kenneth R. (Olathe, KS); Snapp, Lowell D. (Blue Springs, MO)

2006-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Optical bistability in nonlinear system with two loops of feedback  

E-Print Network [OSTI]

A model of nonlinear optical system surrounded by two loops of feedback is investigated. The cell with the vapor of rubidium - type atoms is taken in the capacity of nonlinear element. Two modes of near-resonant electromagnetic field interacting with the cell are involved in the feedback. Two-dimensional optical bistability domain in location of input field intensities is obtained and dependence of its form and magnitude from the system parameters (photon detunings, feedback factor etc.) is investigated. "Input - output" relations corresponding to different trajectories in the bistability domain are obtained. Cross-hysteresis is studied.

George P. Miroshnichenko; Alexander I. Trifanov

2010-11-16T23:59:59.000Z

462

One-loop divergences in massive gravity theory  

E-Print Network [OSTI]

The one-loop divergences are calculated for the recently proposed ghost-free version of massive gravity, where the action depends on both metric and external tensor field f. The non-polynomial structure of the massive term is reduced to a more standard form by means of auxiliary tensor field, which is settled on-shell after quantum calculations are performed. As one should expect, the counterterms do not reproduce the form of the classical action. Moreover, the result has the form of the power series in f.

Ioseph L. Buchbinder; Dante D. Pereira; Ilya L. Shapiro

2012-01-16T23:59:59.000Z

463

Closed loop air cooling system for combustion turbines  

DOE Patents [OSTI]

Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts.

Huber, David John (North Canton, OH); Briesch, Michael Scot (Orlando, FL)

1998-01-01T23:59:59.000Z

464

Closed loop air cooling system for combustion turbines  

DOE Patents [OSTI]

Convective cooling of turbine hot parts using a closed loop system is disclosed. Preferably, the present invention is applied to cooling the hot parts of combustion turbine power plants, and the cooling provided permits an increase in the inlet temperature and the concomitant benefits of increased efficiency and output. In preferred embodiments, methods and apparatus are disclosed wherein air is removed from the combustion turbine compressor and delivered to passages internal to one or more of a combustor and turbine hot parts. The air cools the combustor and turbine hot parts via convection and heat is transferred through the surfaces of the combustor and turbine hot parts. 1 fig.

Huber, D.J.; Briesch, M.S.

1998-07-21T23:59:59.000Z

465

Sandia National Laboratories: HeFl Flow Loop  

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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik Spoerke SSLS Exhibit at ExploraGlobal SandiaVermontFacilityHeFl Flow Loop

466

Cleanup Verification Package for the 618-8 Burial Ground  

SciTech Connect (OSTI)

This cleanup verification package documents completion of remedial action for the 618-8 Burial Ground, also referred to as the Solid Waste Burial Ground No. 8, 318-8, and the Early Solid Waste Burial Ground. During its period of operation, the 618-8 site is speculated to have been used to bury uranium-contaminated waste derived from fuel manufacturing, and construction debris from the remodeling of the 313 Building.

M. J. Appel

2006-08-10T23:59:59.000Z

467

Sun--Grounding Social Sciences in Cognitive Sciences I Introduction  

E-Print Network [OSTI]

G Sun--Grounding Social Sciences in Cognitive Sciences I Introduction Sun_8928_001_main.indd 1 1/10/2012 6:35:15 PM #12;G Sun--Grounding Social Sciences in Cognitive Sciences Sun_8928_001_main.indd 2 1/10/2012 6:35:15 PM #12;G Sun--Grounding Social Sciences in Cognitive Sciences 1 Prolegomenato

Sun, Ron

468

Ground Gravity Survey At Neal Hot Springs Geothermal Area (Colwell...  

Open Energy Info (EERE)

Technique Ground Gravity Survey Activity Date 2011 - 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Gravity surveys were conducted to gain a better...

469

Ground Magnetics At Neal Hot Springs Geothermal Area (Colwell...  

Open Energy Info (EERE)

Technique Ground Magnetics Activity Date 2011 - 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Magnetic surveys were conducted to gain a better...

470

Hybrid Ground Source System Analysis and Tool Development  

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

Development Principal Investigator Scott Hackel, Energy Center of Wisconsin Ground Source Heat Pumps Demonstration Projects May 18, 2010 This presentation does not contain any...

471

Monitoring SERC Technologies —Geothermal/Ground Source Heat Pumps  

Broader source: Energy.gov [DOE]

A webinar by National Renewable Energy Laboratory Project Leader Dave Peterson about Geothermal/Ground Source Heat Pumps and how to properly monitor its installation.

472

LANL breaks ground on key sediment control project  

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

Sediment control project LANL breaks ground on key sediment control project Called "grade-control" structures, the approximately 2 million features are up to eight feet high and...

473

Ground Gravity Survey At Dixie Valley Geothermal Area (Allis...  

Open Energy Info (EERE)

Activity Details Location Dixie Valley Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1999 - 2000 Usefulness not indicated DOE-funding Unknown...

474

Ground Gravity Survey At Kilauea East Rift Geothermal Area (Broyles...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Kilauea East Rift Geothermal Area (Broyles, Et Al., 1979) Exploration...

475

Ground Gravity Survey At Kilauea East Rift Geothermal Area (Leslie...  

Open Energy Info (EERE)

Details Location Kilauea East Rift Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1998 - 1998 Usefulness useful DOE-funding Unknown Exploration...

476

Ground Gravity Survey At Neal Hot Springs Geothermal Area (U...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2007) Exploration...

477

Ground Gravity Survey At Kilauea East Rift Geothermal Area (FURUMOTO...  

Open Energy Info (EERE)

Details Location Kilauea East Rift Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1974 - 1974 Usefulness useful DOE-funding Unknown Exploration...

478

Ground Gravity Survey At Mt Princeton Hot Springs Geothermal...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Mt Princeton Hot Springs Geothermal Area (Case, Et Al., 1984) Exploration...

479

Ground Gravity Survey At Baltazor Hot Springs Area (Isherwood...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Baltazor Hot Springs Area (Isherwood & Mabey, 1978) Exploration Activity...

480

Ground Gravity Survey At Roosevelt Hot Springs Geothermal Area...  

Open Energy Info (EERE)

Details Location Roosevelt Hot Springs Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1985 - 1985 Usefulness useful DOE-funding Unknown Exploration...

Note: This page contains sample records for the topic "open loop ground" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Ground Gravity Survey At Blue Mountain Geothermal Area (Fairbank...  

Open Energy Info (EERE)

Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area Exploration Technique Ground Gravity Survey Activity Date Usefulness not...

482

artificial ground freezing: Topics by E-print Network  

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

Moorman, Brian 6 Ground state lost but degeneracy found: the effective thermodynamics of artificial spin ice Condensed Matter (arXiv) Summary: We analyze the rotational...

483

Ground Gravity Survey At Under Steamboat Springs Area (Warpinski...  

Open Energy Info (EERE)

Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Under Steamboat Springs Area (Warpinski,...

484

Optimal Ground-Source Heat Pump System Design  

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

Ground-Source Heat Pump System Design May 19, 2010 Geothermal Technologies Program 2010 Peer Review ENVIRON International PI : Metin Ozbek Track : GSHP Demonstration Projects This...

485

Renewable Energy Opportunities at Yuma Proving Ground, Arizona  

SciTech Connect (OSTI)

This document provides an overview of renewable resource potential at Yuma Proving Ground, based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations.

Orrell, Alice C.; Kora, Angela R.; Russo, Bryan J.; Williamson, Jennifer L.; Weimar, Mark R.; Gorrissen, Willy J.; Dixon, Douglas R.

2010-06-30T23:59:59.000Z

486

Cleanup Verification Package for the 118-F-1 Burial Ground  

SciTech Connect (OSTI)

This cleanup verification package documents completion of remedial action for the 118-F-1 Burial Ground on the Hanford Site. This burial ground is a combination of two locations formerly called Minor Construction Burial Ground No. 2 and Solid Waste Burial Ground No. 2. This waste site received radioactive equipment and other miscellaneous waste from 105-F Reactor operations, including dummy elements and irradiated process tubing; gun barrel tips, steel sleeves, and metal chips removed from the reactor; filter boxes containing reactor graphite chips; and miscellaneous construction solid waste.

E. J. Farris and H. M. Sulloway

2008-01-10T23:59:59.000Z

487

Ground Electromagnetic Survey At Kilauea East Rift Geothermal...  

Open Energy Info (EERE)

horizontally on the ground. Interpretation of the data was made using an inversion computer program and the primary magnetic field was estimated directly from the data rather...

488

Ground Gravity Survey At Lake City Hot Springs Area (Warpinski...  

Open Energy Info (EERE)

Lake City Hot Springs Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Lake City Hot...

489

Ground Gravity Survey At Long Valley Caldera Geothermal Area...  

Open Energy Info (EERE)

Battaglia, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Long Valley Caldera Geothermal Area (Battaglia,...

490

Fusion rules and macroscopic loops from discretized approach to two-dimensional gravity  

E-Print Network [OSTI]

We investigate the multi-loop correlators and the multi-point functions for all of the scaling operators in unitary minimal conformal models coupled to two-dimensional gravity from the two-matrix model. We show that simple fusion rules for these scaling operators exist, and these are summarized in a compact form as fusion rules for loops. We clarify the role of the boundary operators and discuss its connection to how loops touch each other. We derive a general formula for the n-resolvent correlators, and point out the structure similar to the crossing symmetry of underlying conformal field theory. We discuss the connection of the boundary conditions of the loop correlators to the touching of loops for the case of the four-loop correlators.

Masahiro Anazawa

1997-04-04T23:59:59.000Z

491

OBSERVATIONS OF PLASMA UPFLOW IN A WARM LOOP WITH HINODE/EIS  

SciTech Connect (OSTI)

A complete understanding of Doppler shift in active region loops can help probe the basic physical mechanism involved into the heating of those loops. Here, we present observations of upflows in coronal loops detected in a range of temperatures (log T = 5.8-6.2). The loop was not discernible above these temperatures. The speed of upflow was strongest at the footpoint and decreased with height. The upflow speed at the footpoint was about 20 km s{sup -1} in Fe VIII, which decreased with temperature, being about 13 km s{sup -1} in Fe X, about 8 km s{sup -1} in Fe XII, and about 4 km s{sup -1} in Fe XIII. To the best of our knowledge, this is the first observation providing evidence of upflow of plasma in coronal loop structures at these temperatures. We interpret these observations as evidence of chromospheric evaporation in quasi-static coronal loops.

Tripathi, Durgesh [Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007 (India); Mason, Helen E.; Del Zanna, Giulio [Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA (United Kingdom); Bradshaw, Steven [Department of Physics and Astronomy, Rice University, Houston, TX 77005 (United States)

2012-07-20T23:59:59.000Z

492

Testing Loop Quantum Gravity and Electromagnetic Dark Energy in Superconductors  

E-Print Network [OSTI]

In 1989 Cabrera and Tate reported an anomalous excess of mass of the Cooper pairs in rotating thin Niobium rings. So far, this experimental result never received a proper theoretical explanation in the context of superconductor's physics. In the present work we argue that what Cabrera and Tate interpreted as an anomalous excess of mass can also be associated with a deviation from the classical gravitomagnetic Larmor theorem due to the presence of dark energy in the superconductor, as well as with the discrete structure of the area of the superconducting Niobium ring as predicted by Loop Quantum Gravity. From Cabrera and Tate measurements we deduce that the quantization of spacetime in superconducting circular rings occurs at the Planck-Einstein scale $l_{PE} = (\\hbar G/c^3 \\Lambda)^{1/4}\\sim 3.77\\times 10 ^{-5} m$, instead of the Planck scale $l_{P} =(\\hbar G / c^3)^{1/2}=1.61 \\times 10 ^{-35} m$, with an Immirzi parameter which depends on the specific critical temperature of the superconducting material and on the area of the ring. The stephan-Boltzmann law for quantized areas delimited by superconducting rings is predicted, and an experimental concept based on the electromagnetic black-body radiation emitted by this surfaces, is proposed to test loop quantum gravity and electromagnetic dark energy in superconductors.

Clovis Jacinto de Matos

2009-08-06T23:59:59.000Z

493

Dry Dilution Refrigerator with He-4 Precool Loop  

E-Print Network [OSTI]

He-3/He-4 dilution refrigerators (DR) are very common in sub-Kelvin temperature research. We describe a pulse tube precooled DR where a separate He-4 circuit condenses the He-3 of the dilution loop. Whereas in our previous work the dilution circuit and the He-4 circuit were separate, we show how the two circuits can be combined. Originally, the He-4 loop with a base temperature of ~ 1 K was installed to make an additional cooling power of up to 100 mW available to cool cold amplifiers and electrical lines. In the new design, the dilution circuit is run through a heat exchanger in the vessel of the He-4 circuit so that the condensation of the He-3 stream of the DR is done by the He-4 stage. A much reduced condensation time (factor of 2) of the He-3/He-4 gas mixture at the beginning of an experiment is achieved. A compressor is no longer needed with the DR as the condensation pressure remains below atmospheric pressure at all times; thus the risk of losing expensive He-3 gas is small. The performance of the DR ...

Uhlig, K

2014-01-01T23:59:59.000Z

494

Dry dilution refrigerator with 4He-1K-loop  

E-Print Network [OSTI]

In this article we summarize experimental work on cryogen-free 3He/4He dilution refrigerators which, in addition to the dilution refrigeration circuit, are equipped with a 4He-1K-stage. This type of DR becomes worth considering when high cooling capacities are needed at T ~ 1 K to cool cold amplifiers and heat sink cables. In our application, the motivation for the construction of this type of cryostat was to do experiments on superconducting quantum circuits for quantum information technology and quantum simulations. In other work, DRs with 1K-stage were proposed for astro-physical cryostats. For neutron scattering research, a top-loading cryogen-free DR with 1K-stage was built which was equipped with a standard commercial dilution refrigeration insert. Cooling powers of up to 100 mW have been reached with our 1K-stage, but higher refrigeration powers were achieved with more powerful pulse tube cryocoolers and higher 4He circulation rates in the 1K-loop. Several different versions of a 1K-loop have been test...

Uhlig, Kurt

2014-01-01T23:59:59.000Z

495

Environmental Impact on the Southeast Limb of the Cygnus Loop  

E-Print Network [OSTI]

We analyze observations from the Chandra X-ray Observatory of the southeast knot of the Cygnus Loop supernova remnant. In this region, the blast wave propagates through an inhomogeneous environment. Extrinsic differences and subsequent multiple projections along the line of sight rather than intrinsic shock variations, such as fluid instabilities, account for the apparent complexity of the images. Interactions between the supernova blast wave and density enhancements of a large interstellar cloud can produce the morphological and spectral characteristics. Most of the X-ray flux arises in such interactions, not in the diffuse interior of the supernova remnant. Additional observations at optical and radio wavelengths support this account of the existing interstellar medium and its role in shaping the Cygnus Loop, and they demonstrate that the southeast knot is not a small cloud that the blast wave has engulfed. These data are consistent with rapid equilibration of electron and ion temperatures behind the shock front, and the current blast wave velocity v_{bw} approx 330 km/s. Most of this area does not show strong evidence for non-equilibrium ionization conditions, which may be a consequence of the high densities of the bright emission regions.

N. A. Levenson; James R. Graham

2004-12-17T23:59:59.000Z

496

Simulations of magnetic hysteresis loops at high temperatures  

SciTech Connect (OSTI)

The kinetic Monte-Carlo algorithm as well as standard micromagnetics are used to simulate MH loops of high anisotropy magnetic recording media at both short and long time scales over a wide range of temperatures relevant to heat-assisted magnetic recording. Microscopic parameters, common to both methods, were determined by fitting to experimental data on single-layer FePt-based media that uses the Magneto-Optic Kerr effect with a slow sweep rate of 700?Oe/s. Saturation moment, uniaxial anisotropy, and exchange constants are given an intrinsic temperature dependence based on published atomistic simulations of FePt grains with an effective Curie temperature of 680?K. Our results show good agreement between micromagnetics and kinetic Monte Carlo results over a wide range of sweep rates. Loops at the slow experimental sweep rates are found to become more square-shaped, with an increasing slope, as temperature increases from 300?K. These effects also occur at higher sweep rates, typical of recording speeds, but are much less pronounced. These results demonstrate the need for accurate determination of intrinsic thermal properties of future recording media as input to micromagnetic models as well as the sensitivity of the switching behavior of thin magnetic films to applied field sweep rates at higher temperatures.

Plumer, M. L.; Whitehead, J. P.; Fal, T. J. [Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador A1B 3X7 (Canada); Ek, J. van [Western Digital Corporation, San Jose, California 94588 (United States); Mercer, J. I. [Department of Computer Science, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador A1B 3X7 (Canada)

2014-09-28T23:59:59.000Z

497

Integrated Vehicle Thermal Management - Combining Fluid Loops in Electric Drive Vehicles (Presentation)  

SciTech Connect (OSTI)

Plug-in hybrid electric vehicles and electric vehicles have increased vehicle thermal management complexity, using separate coolant loop for advanced power electronics and electric motors. Additional thermal components result in higher costs. Multiple cooling loops lead to reduced range due to increased weight. Energy is required to meet thermal requirements. This presentation for the 2013 Annual Merit Review discusses integrated vehicle thermal management by combining fluid loops in electric drive vehicles.

Rugh, J. P.

2013-07-01T23:59:59.000Z

498

OpenXC | OpenEI Community  

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 Office of InspectorConcentrating Solar Powerstories onFocus AreaDataBusPFAN)ChangeOnPACenEdit Historypage isOpenXC Home

499

OpenEI:Marketing | 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 CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty, Michigan: EnergyOpenBarter Jump to:source History View New Pages

500

OpenEI:Stub | 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 CenterFranconia, Virginia: Energy ResourcesLoading map...(UtilityCounty, Michigan: EnergyOpenBarter Jump to:sourceStub Jump to: navigation,