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1

Walker Branch Throughfall Displacement Experiment Data Report...  

NLE Websites -- All DOE Office Websites (Extended Search)

M. E. Wolfe, and E. G. O'Neill. 2001. Walker Branch Throughfall Displacement Experiment Data Report: Site Characterization, System Performance, Weather, Species Composition, and...

2

Walker Branch Throughfall Displacement Experiment Data Report: Site  

NLE Websites -- All DOE Office Websites (Extended Search)

D: D: LISTING OF THROUGHFALL DISPLACEMENT EXPERIMENT PUBLICATIONS A. INTRODUCTORY PAPERS AND SUMMARIES Hanson, P. J., D. E. Todd, D. W. Johnson, J. D. Joslin, and E. G. O'Neill (in press). Responses of eastern deciduous forests to precipitation change. In J. F. Weltzin and G. R. McPherson (eds.), Precipitation and Terrestrial Ecosystems, John Hopkins University Press, Baltimore. Hanson, P. J. 2000. Large-scale water manipulations. pp. 341-352. In O. E. Sala, R. B. Jackson, H. A. Mooney, and R. W. Howarth (eds.), Methods in Ecosystem Science , Springer- Verlag, New York. Hanson, P. J., D. E. Todd, N. T. Edwards, and M. A. Huston. 1995. Field performance of the Walker Branch Throughfall Displacement Experiment. pp. 307-313. In A. Jenkins, R. C. Ferrier, and C. Kirby (eds.), Ecosystem

3

Application of throughfall methods to estimate dry deposition of mercury  

SciTech Connect

Several dry deposition methods for Mercury (Hg) are being developed and tested in our laboratory. These include big-leaf and multilayer resistance models, micrometeorological methods such as Bowen ratio gradient approaches, laboratory controlled plant chambers, and throughfall. We have previously described our initial results using modeling and gradient methods. Throughfall may be used to estimate Hg dry deposition if some simplifying assumptions are met. We describe here the application and initial results of throughfull studies at the Walker Branch Watershed forest, and discuss the influence of certain assumptions on interpretation of the data. Throughfall appears useful in that it can place a lower bound to dry deposition under field conditions. Our preliminary throughfall data indicate net dry deposition rates to a pine canopy which increase significantly from winter to summer, as previously predicted by our resistance model. Atmospheric data suggest that rainfall washoff of fine aerosol dry deposition at this site is not sufficient to account for all of the Hg in net throughfall. Potential additional sources include dry deposited gas-phase compounds, soil-derived coarse aerosols, and oxidation reactions at the leaf surface.

Lindberg, S.E.; Owens, J.G. [Oak Ridge National Lab., TN (United States); Stratton, W. [Earlham Coll., Richmond, IN (United States). Dept. of Chemistry

1992-12-31T23:59:59.000Z

4

Carbon Dioxide Information Analysis Center (CDIAC)  

NLE Websites -- All DOE Office Websites (Extended Search)

Walker Branch Throughfall Displacement Experiment Data Report: Site Characterization, System Performance, Weather, Species Composition, and Growth (NDP-078A) image Navigate CDIAC...

5

Elevational trends in the fluxes of sulphur and nitrogen in throughfall in the southern Appalachian Mountains: some surprising results  

Science Conference Proceedings (OSTI)

From 1986-1989, a team of scientists measured atmospheric concentrations and fluxes in precipitation and throughfall, and modeled dry and cloudwater deposition in a spruce-fir forest of the Great Smoky Mountains National Park which is located in the Southern Appalachian Region of the United States. The work was part of the Integrated Forest Study (IFS) conducted at 12 forests in N. America and Europe. The spruce-fir forest at 1740 m consistently received the highest total deposition rates ({approx}2200, 1200, and 700 eq ha{sup -1} yr{sup -1} for SO{sub 4}{sup 2-}, NO{sub 3}{sup -}, and NH{sub 4}{sup +}). During the summers of 1989 and 1990 we used multiple samplers to measure hydrologie, SO{sub 4}{sup 2-}, and NO{sub 3}{sup -} fluxes in rain and throughfall events beneath spruce forests above (1940 m) and below (1720 m) cloud base. Throughfall was used to estimate total deposition using relationships determined during the IFS. Although the SO{sub 4}{sup 2-} fluxes increased with elevation by a factor of 2 due to higher cloudwater interception at 1940 m, the NO{sub 3}{sup -} fluxes decreased with elevation by 30%. To investigate further, we began year round measurements of fluxes of all major ions in throughfall below spruce-fir forests at 1740 m and at 1920 m in 1993-1994. The fluxes of most ions showed a 10-50% increase with elevation due to the 70 cm yr{sup -1} cloudwater input at 1920 m. However, total inorganic nitrogen exhibited a 40% lower flux in throughfall at 1920 m than at 1740 m suggesting either higher dry deposition to trees at 1740 m or much higher canopy uptake of nitrogen by trees at 1920 m. Differential canopy absorption of N by trees at different elevations would have significant consequences for the use of throughfall N fluxes to estimate deposition. We used artificial trees to understand the foliar interactions of N.

Shubzda, John [ORNL; Lindberg, Steven Eric [ORNL; Garten Jr, Charles T [ORNL; Nodvin, S. [University of Tennessee, Knoxville (UTK)

1995-12-01T23:59:59.000Z

6

Displacer for Stirling engine  

SciTech Connect

In a Stirling engine and the like, a displacer piston having a plurality of internal baffles and insulation so as to prevent undesired heat transfer across the displacer piston.

Brown, A. T.

1985-12-24T23:59:59.000Z

7

Can sulfate fluxes in forest canopy throughfall be used to estimate atmospheric sulfur deposition? - A summary of recent results  

Science Conference Proceedings (OSTI)

The flux of sulfate is forest throughfall and stemflow (the sum of which is designated here as TF) may be an indicator of the atmospheric deposition of S, particularly if foliar leaching of internal plant S is small relative to washoff of deposition. Extensive data from 13 forests indicate that annual sulfate fluxes in TF and in atmospheric deposition are very similar, and recent studies with {sup 35}S tracers indicate that leaching is only a few percent of total TF. However, some short-term deposition/TF comparisons show large differences, and there remain questions about interpretation of tracer results. Considering the data, we conclude that TF may be used under some conditions to estimate deposition within acceptable uncertainty limits, but that some assumptions need further testing. If TF does reflect deposition, these data suggest that commonly used methods and models seriously underestimate total S deposition at some sites.

Lindberg, Steven Eric [ORNL; Cape, J. N. [Institute of Terrestrial Ecology; Garten Jr, Charles T [ORNL; Ivens, W. [University of Utrecht

1992-06-01T23:59:59.000Z

8

Water displacement mercury pump  

DOE Patents (OSTI)

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, Marshall G. (Woodside, CA)

1985-01-01T23:59:59.000Z

9

Water displacement mercury pump  

DOE Patents (OSTI)

A water displacement mercury pump has a fluid inlet conduit and diffuser, a valve, a pressure cannister, and a fluid outlet conduit. The valve has a valve head which seats in an opening in the cannister. The entire assembly is readily insertable into a process vessel which produces mercury as a product. As the mercury settles, it flows into the opening in the cannister displacing lighter material. When the valve is in a closed position, the pressure cannister is sealed except for the fluid inlet conduit and the fluid outlet conduit. Introduction of a lighter fluid into the cannister will act to displace a heavier fluid from the cannister via the fluid outlet conduit. The entire pump assembly penetrates only a top wall of the process vessel, and not the sides or the bottom wall of the process vessel. This insures a leak-proof environment and is especially suitable for processing of hazardous materials.

Nielsen, M.G.

1984-04-20T23:59:59.000Z

10

Design methods for displacement ventilation: Critical review.  

E-Print Network (OSTI)

Displacement Ventilation. ASHRAE Research project-RP-949.displacement ventilation. ASHRAE Transaction, 96 (1). Ar ???due to displacement ventilation. ASHRAE Transaction, 96 (1).

Schiavon, Stefano

2006-01-01T23:59:59.000Z

11

Variable displacement blower  

DOE Patents (OSTI)

A blower having a stationary casing for rotatably supporting a rotor assembly having a series of open ended chambers arranged to close against the surrounding walls of the casing. Pistons are slidably mounted within each chamber with the center of rotation of the pistons being offset in regard to the center of rotation of the rotor assembly whereby the pistons reciprocate in the chambers as the rotor assembly turns. As inlet port communicates with the rotor assembly to deliver a working substance into the chamber as the pistons approach a top dead center position in the chamber while an outlet port also communicates with the rotor to exhaust the working substance as the pistons approach a bottom dead center position. The displacement of the blower is varied by adjusting the amount of eccentricity between the center of rotation of the pistons and the center of rotation of the rotor assembly.

Bookout, Charles C. (Niskayuna, NY); Stotts, Robert E. (Clifton Park, NY); Waring, Douglass R. (Ballston Spa, NY); Folsom, Lawrence R. (Ohain, BE)

1986-01-01T23:59:59.000Z

12

National Labs Open Doors to Displaced Japanese Researchers | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

National Labs Open Doors to Displaced Japanese Researchers National Labs Open Doors to Displaced Japanese Researchers National Labs Open Doors to Displaced Japanese Researchers July 5, 2011 - 1:42pm Addthis Maiko Kofu, Atsushi Nagoe and Osamu Yamamuro examine their sample attached to the end of the cryostat stick after running an experiment at Oak Ridge National Laboratory’s Spallation Neutron Source. | Department of Energy Photo | Courtesy of Oak Ridge National Laboratory | Public Domain | Maiko Kofu, Atsushi Nagoe and Osamu Yamamuro examine their sample attached to the end of the cryostat stick after running an experiment at Oak Ridge National Laboratory's Spallation Neutron Source. | Department of Energy Photo | Courtesy of Oak Ridge National Laboratory | Public Domain | Charles Rousseaux Charles Rousseaux

13

A novel approach to modeling unstable EOR displacements. Final report  

Science Conference Proceedings (OSTI)

Most enhanced oil recovery schemes involve the displacement of a more dense and more viscous oil by a less dense and less viscous fluid in a heterogeneous porous medium. The interaction of heterogeneity with the several competing forces, namely, viscous, capillary, gravitational, and dispersive forces, can conspire to make the displacements unstable and difficult to model and to predict. The objective of this research was to develop a systematic methodology for modeling unstable fluid displacements in heterogeneous media. Flow visualization experiments were conducted using X-ray computed tomography imaging and a video imaging workstation to gain insights into the dynamics of unstable displacements, acquire detailed quantitative experimental image data for calibrating numerical models of unstable displacements, and image and characterize heterogeneities in laboratory cores geostatistically. High-resolution numerical models modified for use on vector-architecture supercomputers were used to replicate the image data. Geostatistical models of reservoir heterogeneity were incorporated in order to study the interaction of hydrodynamic instability and heterogeneity in reservoir displacements. Finally, a systematic methodology for matching the experimental data with the numerical models and scaling the laboratory results to other systems were developed. The result is a new method for predicting the performance of unstable EOR displacements in the field based on small-scale displacements in the laboratory. The methodology is general and can be applied to forecast the performance of most processes that involve fluid flow and transport in porous media. Therefore, this research should be of interest to those involved in forecasting the performance of enhanced oil recovery processes and the spreading of contaminants in heterogeneous aquifers.

Peters, E.J.

1994-04-01T23:59:59.000Z

14

The effect of Coulombic friction on spatial displacement statistics  

E-Print Network (OSTI)

The phenomenon of Coulombic friction enters the stochastic description of dry friction between two solids and the statistic characterization of vibrating granular media. Here we analyze the corresponding Fokker-Planck equation including both velocity and spatial components, exhibiting a formal connection to a quantum mechanical harmonic oscillator in the presence of a delta potential. Numerical solutions for the resulting spatial displacement statistics show a crossover from exponential to Gaussian displacement statistics. We identify a transient intermediate regime that exhibits multiscaling properties arising from the contribution of Coulombic friction. The possible role of these effects during observations in diffusion experiments is shortly discussed.

Andreas M. Menzel; Nigel Goldenfeld

2010-10-30T23:59:59.000Z

15

Displaced electrode process for welding  

DOE Patents (OSTI)

A method is described for the butt-welding of a relatively heavy mass to a relatively small mass such as a thin-wall tube. In butt-welding heat is normally applied at the joint between the two pieces which are butt-welded together. The application of heat at the joint results in overheating the tube which causes thinning of the tube walls and porosity in the tube material. This is eliminated by displacing the welding electrode away from the seam toward the heavier mass so that heat is applied to the heavy mass and not at the butt seam. Examples of the parameters used in welding fuel rods are given. The cladding and end plugs were made of Zircalloy. The electrode used was of 2 percent thoriated tungsten. (auth)

Heichel, L.J.

1975-08-26T23:59:59.000Z

16

Displacement speeds in turbulent premixed flame simulations  

SciTech Connect

The theory of turbulent premixed flames is based on acharacterization of the flame as a discontinuous surface propagatingthrough the fluid. The displacement speed, defined as the local speed ofthe flame front normal to itself, relative to the unburned fluid,provides one characterization of the burning velocity. In this paper, weintroduce a geometric approach to computing displacement speed anddiscuss the efficacy of the displacement speed for characterizing aturbulent flame.

Day, Marcus S.; Shepherd, Ian G.; Bell, J.; Grcar, Joseph F.; Lijewski, Michael J.

2007-07-01T23:59:59.000Z

17

Coreflood experimental study of steam displacement.  

E-Print Network (OSTI)

??The main objective of this study was to verify experimentally whether or not a Buckley-Leverett shock front exists when steam displaces oil in a porous (more)

Cerutti, Andres Enrique

2012-01-01T23:59:59.000Z

18

Geothermal: Sponsored by OSTI -- Generalized displacement correlation...  

Office of Scientific and Technical Information (OSTI)

Generalized displacement correlation method for estimating stress intensity factors Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On Home...

19

Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

Displacement Transfer Zone Displacement Transfer Zone Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Displacement Transfer Zone Dictionary.png Displacement Transfer Zone: Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults. Other definitions:Wikipedia Reegle Controlling Structures List of controlling structures typically associated with geothermal systems: Major Normal Fault Termination of a Major Normal Fault Stepover or Relay Ramp in Normal Fault Zones Apex or Salient of Normal Fault

20

Ray-tracing Procedural Displacement Shaders  

E-Print Network (OSTI)

Displacement maps and procedural displacement shaders are a widely used approach of specifying geometric detail and increasing the visual complexity of a scene. While it is relatively straightforward to handle displacement shaders in pipeline based rendering systems such as the Reyes-architecture, it is much harder to efficiently integrate displacement-mapped surfaces in ray-tracers. Many commercial ray-tracers tessellate the surface into a multitude of small triangles. This introduces a series of problems such as excessive memory consumption and possibly undetected surface detail. In this paper we describe a novel way of ray-tracing procedural displacement shaders directly, that is, without introducing intermediate geometry. Affine arithmetic is used to compute bounding boxes for the shader over any range in the parameter domain. The method is comparable to the direct ray-tracing of B'ezier surfaces and implicit surfaces using B'ezier clipping and interval methods, respectively. Keyw...

Wolfgang Heidrich; Hans-peter Seidel

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Evaluation of two-phase relative permeability and capillary pressure relations for unstable displacements in a pore network  

Science Conference Proceedings (OSTI)

A series of displacement experiments was conducted using five wetting-nonwetting immiscible fluid pairs in a homogenous and uniform pore network. The micromodel was initially saturated with either polyethylene glycol 200 (PEG) or water as a wetting fluid, which was subsequently displaced by a nonwetting fluid (dodecane, hexadecane, or mineral oil) at different flow rates. The experiments were designed to allow determinations of nonwetting fluid relative permeabilities ( ), fluid saturations ( ), and capillary pressure heads ( ). In the displacements, nonwetting fluid saturations increased with increasing flow rates for all five fluid pairs, and viscous fingering, capillary fingering, and stable displacement were observed. Viscous fingering occurred when PEG was displaced by either dodecane or hexadecane. For the water displacements, capillary fingers were observed at low capillary numbers. Due to unstable fingering phenomena, values for the PEG displacements were smaller than for the water displacements. A fitting exercise using the Brooks-Corey (1964) relationship showed that the fitted entry pressure heads are reasonably close to the computed entry pressure head. The fitted pore geometry factor, ?? values for the displacements are considerably lower than what is expected for displacements in homogeneous, highly uniform, porous systems, demonstrating the impact of unstable displacement on the apparent value of ?. It was shown that a continuum-based multiphase model could be used to predict the average behavior for wetting fluid drainage in a pore network as long as independently fitted - and - relations are used. The use of a coupled approach through the Brooks-Corey pore geometry factor underpredicts observed values.

Dehoff, Karl J.; Oostrom, Martinus; Zhang, Changyong; Grate, Jay W.

2012-10-29T23:59:59.000Z

22

www.hicn.org Displacement and Education of the Next Generation: Evidence from Bosnia and Herzegovina  

E-Print Network (OSTI)

Abstract: In this paper, I study how displacement of parents during a violent conflict affects investment in their childrens ' education years later. Using ethnic division during the Bosnian War as a natural experiment, I can identify exogenously displaced households and compare them to households who did not have to move because of the war. I find that displaced households spend significantly less on the education of their children in primary and secondary school (20 to 35 %), while their children are equally likely to be enrolled. The result also holds for expenditure positions like textbooks, school materials and annual tuition in secondary school. A decomposition of the causal effect shows that differences in income and the stock of durable goods can at most explain one third of the finding. Some evidence points towards increased uncertainty about the future of displaced parents. The finding implies that the disadvantage of displacement might be carried on to the next generation through the quality of education.

Christoph Eder

2013-01-01T23:59:59.000Z

23

Experiences  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiences Experiences with 100Gbps Network Applications Mehmet Balman, Eric Pouyoul, Yushu Yao, E. Wes Bethel Burlen Loring, Prabhat, John Shalf, Alex Sim, and Brian L. Tierney Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley, CA, 94720, USA {mbalman,epouyoul,yyao,ewbethel,bloring,prabhat,jshalf,asim,btierney}@lbl.gov ABSTRACT 100Gbps networking has finally arrived, and many research and educational institutions have begun to deploy 100Gbps routers and services. ESnet and Internet2 worked together to make 100Gbps networks available to researchers at the Supercomputing 2011 con- ference in Seattle Washington. In this paper, we describe two of the first applications to take advantage of this network. We demon- strate a visualization application that enables remotely located sci- entists to gain insights from large datasets. We also demonstrate climate

24

Scale model studies of displacement ventilation  

E-Print Network (OSTI)

Displacement ventilation is an air conditioning method that provides conditioned air to indoor environments with the goal to improve air quality while reducing energy consumption. This study investigates the performance ...

Okutan, Galip Mehmet

1995-01-01T23:59:59.000Z

25

Parallel Displacement Decomposition Solvers for Elasticity Problems  

Science Conference Proceedings (OSTI)

This article describes the displacement decomposition and its benefits for the parallelization of the preconditioned conjugate gradient method for finite element elasticity problems. It deals with both the fixed and variable preconditioning based on ...

Radim Blaheta; Ondrej Jakl; Jiri Stary

2001-09-01T23:59:59.000Z

26

Tsunami mortality and displacement in Aceh province, Indonesia  

E-Print Network (OSTI)

Tsunami mortality and displacement in Aceh province, Indonesia Abdur Rofi, MA Mercy Corps Indonesia, Indonesia, Shannon Doocy, PhD Research Associate, Johns Hopkins Bloomberg School of Public Health, US. Keywords: displacement, internally displaced persons (IDPs), Indonesia, mortality, tsunami Introduction

Scharfstein, Daniel

27

A STOCHASTIC METHOD FOR MODELING FLUID DISPLACEMENT IN PETROLEUM RESERVOIRS  

E-Print Network (OSTI)

FLUID DISPLACEMENT IN PETROLEUM RESERVOIRS C. Anderson andFLUID DISPLACEMENT IN PETROLEUM RESERVOIRS C. Anderson andachieve optimal recovery of petroleum from a reservoir, it

Anderson, C.

2011-01-01T23:59:59.000Z

28

Definition: Displacement Transfer Zone | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Displacement Transfer Zone Jump to: navigation, search Dictionary.png Displacement Transfer Zone Displacement transfer zones facilitate the transfer of strain between normal and strike-slip faults. Intersections between strike-slip faults in the Walker Lane and N- to NNE-striking normal faults commonly host geothermal systems, focused along the normal faults proximal to their dilational intersections with nearby strike-slip faults.[2] View on Wikipedia Wikipedia Definition References ↑ James E. Faulds,Nicholas H. Hinz,Mark F. Coolbaugh,Patricia H. Cashman,Christopher Kratt,Gregory Dering,Joel Edwards,Brett Mayhew,Holly McLachlan. 2011. Assessment of Favorable Structural Settings of Geothermal

29

Liquid CO2 Displacement of Water in a Dual-Permeability Pore Network Micromodel  

Science Conference Proceedings (OSTI)

Permeability contrasts exist in multilayer geological formations under consideration for carbon sequestration. To improve our understanding of heterogeneous pore-scale displacements, liquid CO2 (LCO2) - water displacement was evaluated in a pore network micromodel with two distinct permeability zones. Due to the low viscosity ratio (logM = -1.1), unstable displacement occurred at all injection rates over two orders of magnitude. LCO2 displaced water only in the high permeability zone at low injection rates with the mechanism shifting from capillary fingering to viscous fingering with increasing flow rate. At high injection rates, LCO2 displaced water in the low permeability zone with capillary fingering as the dominant mechanism. LCO2 saturation (SLCO2) as a function of injection rate was quantified using fluorescent microscopy. In all experiments, more than 50% of LCO2 resided in the active flowpaths, and this fraction increased as displacement transitioned from capillary to viscous fingering. A continuum-scale two-phase flow model with independently determined fluid and hydraulic parameters was used to predict SLCO2 in the dual-permeability field. Agreement with the micromodel experiments was obtained for low injection rates. However, the numerical model does not account for the unstable viscous fingering processes observed experimentally at higher rates and hence overestimated SLCO2.

Zhang, Changyong; Oostrom, Martinus; Grate, Jay W.; Wietsma, Thomas W.; Warner, Marvin G.

2011-09-01T23:59:59.000Z

30

Mechanisms of oil displacement by microorganisms  

SciTech Connect

Mechanisms of oil displacement at the oil-brine-sand interfaces by bacteria were investigated by microscopic observations and capillary pressure changes using unconsolidated, thin, reservoir flow cells. Three genera of bacteria, Bacillus, Pseudomonas, and Clostridium, were injected into water-wet and oil-wet cells of unconsolidated sand, saturated with brine and crude oil. The flow cells were placed under a microscope for visual and photographic observations. The flow cells were connected to a manometer to examine the complete capillary pressure hysteresis loop before and after introduction of bacteria. The thin reservoir flow cells were first saturated with brine, and then displaced to irreducible water saturation with crude oil. Oil and brine displacements were then made to determine the complete capillary pressure relationship. Next, the bacteria and nutrients were introduced and incubated in the flow cell for 24-48 hours. Microscopic observations were recorded photographically. After incubation, oil and brine displacements were again made to determine the capillary pressure hysteresis loop.

Kianipey, S.A.; Donaldson, E.C.

1986-01-01T23:59:59.000Z

31

ESTIMATION OF DISPLACEMENT LOCATION FOR ENHANCED  

E-Print Network (OSTI)

high quality displacement tracking at the first stage of signal processing. Examples include quasistatic compression imaging [26, 29], axial shear wave imaging [32] and acoustic radiation force imaging for soft tissue tumours [7, 9, 28], monitoring of atherosclerosis [6], assessment of skin pathologies [8

Gee, Andrew

32

THE RANDOM CHOICE METHOD FOR CALCULATING FLUID DISPLACEMENT IN A POROUS MEDIUM  

E-Print Network (OSTI)

Abstract Multiphase fluid displacement in a porous mediumIntroduction Multiphase fluid displacement in a porous

Albright, N.

2011-01-01T23:59:59.000Z

33

Transient digitizer with displacement current samplers  

DOE Patents (OSTI)

A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board. 16 figs.

McEwan, T.E.

1996-05-21T23:59:59.000Z

34

Transient digitizer with displacement current samplers  

DOE Patents (OSTI)

A low component count, high speed sample gate, and digitizer architecture using the sample gates is based on use of a signal transmission line, a strobe transmission line and a plurality of sample gates connected to the sample transmission line at a plurality of positions. The sample gates include a strobe pickoff structure near the strobe transmission line which generates a charge displacement current in response to propagation of the strobe signal on the strobe transmission line sufficient to trigger the sample gate. The sample gate comprises a two-diode sampling bridge and is connected to a meandered signal transmission line at one end and to a charge-holding cap at the other. The common cathodes are reverse biased. A voltage step is propagated down the strobe transmission line. As the step propagates past a capacitive pickoff, displacement current i=c(dv/dT), flows into the cathodes, driving the bridge into conduction and thereby charging the charge-holding capacitor to a value related to the signal. A charge amplifier converts the charge on the charge-holding capacitor to an output voltage. The sampler is mounted on a printed circuit board, and the sample transmission line and strobe transmission line comprise coplanar microstrips formed on a surface of the substrate. Also, the strobe pickoff structure may comprise a planar pad adjacent the strobe transmission line on the printed circuit board.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

35

SLAC National Accelerator Laboratory - SLAC Welcomes Displaced...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Tokyo. Their experiments are similar enough that they were often scheduled one right after the other at the Photon Factory. "We couldn't do our experiments in KEK so,...

36

Optical inverse-square displacement sensor  

DOE Patents (OSTI)

This invention comprises an optical displacement sensor that uses the inverse-square attenuation of light reflected from a diffused surface to calculate the distance from the sensor to the reflecting surface. Light emerging from an optical fiber or the like is directed onto the surface whose distance is to be measured. The intensity I of reflected light is angle dependent, but within a sufficiently small solid angle it falls off as the inverse square of the distance from the surface. At least a pair of optical detectors are mounted to detect the reflected light within the small solid angle, their ends being at different distances R and R + [Delta]R from the surface. The distance R can then be found in terms of the ratio of the intensity measurements and the separation length as given in an equation. 10 figs.

Howe, R.D.; Kychakoff, G.

1989-09-12T23:59:59.000Z

37

Optical inverse-square displacement sensor  

DOE Patents (OSTI)

This invention comprises an optical displacement sensor that uses the inverse-square attenuation of light reflected from a diffused surface to calculate the distance from the sensor to the reflecting surface. Light emerging from an optical fiber or the like is directed onto the surface whose distance is to be measured. The intensity I of reflected light is angle dependent, but within a sufficiently small solid angle it falls off as the inverse square of the distance from the surface. At least a pair of optical detectors are mounted to detect the reflected light within the small solid angle, their ends being at different distances R and R+.DELTA.R from the surface. The distance R can then be found in terms of the ratio of the intensity measurements and the separation length as ##EQU1##

Howe, Robert D. (San Mateo County, CA); Kychakoff, George (King County, WA)

1989-01-01T23:59:59.000Z

38

Gage for measuring displacements in rock samples  

DOE Patents (OSTI)

A gage for measuring diametral displacement within a rock sample for use in a rock mechanics laboratory and in the field, comprises a support ring housing a linear variable differential transformer, a mounting screw, and a leaf spring. The mounting screw is adjustable and defines a first point of contact with the rock sample. The leaf spring has opposite ends fixed to the inner periphery of the mounting ring. An intermediate portion of the leaf spring projecting radially inward from the ring is formed with a dimple defining a second point of contact with the sample. The first and second points of contact are diametrically opposed to each other. The LVDT is mounted in the ring with its axis parallel to the line of measurement and its core rod received in the dimple of the leaf spring. Any change in the length of the line between the first and second support points is directly communicated to the LVDT. The leaf spring is rigid to completely support lateral forces so that the LVDT is free of all load for improved precision.

Holcomb, David J. (Albuquerque, NM); McNamee, Michael J. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

39

Gage for measuring displacements in rock samples  

DOE Patents (OSTI)

A gage for measuring diametral displacement within a rock sample for use in a rock mechanics laboratory and in the field, comprises a support ring housing a linear variable differential transformer (LVDT), a mounting screw, and a leaf spring. The mounting screw is adjustable and defines a first point of contact with the rock sample. The leaf spring has opposite ends fixed to the inner periphery of the mounting ring. An intermediate portion of the leaf spring projecting radially inward from the ring is formed with a dimple defining a second point of contact with the sample. The first and second points of contact are diametrically opposed to each other. The LVDT is mounted in the ring with its axis parallel to the line of measurement and its core rod received in the dimple of the leaf spring. Any change in the length of the line between the first and second support points is directly communicated to the LVDT. The leaf spring is rigid to completely support lateral forces so that the LVDT is free of all load for improved precision.

Holcomb, D.J.; McNamee, M.J.

1985-07-18T23:59:59.000Z

40

Exact distribution of individual displacements in linear probing hashing  

Science Conference Proceedings (OSTI)

This paper studies the distribution of individual displacements for the standard and the Robin Hood linear probing hashing algorithms. When the a table of size m has n elements, the distribution of the search cost of a random element is ... Keywords: Linear probing, distributional analysis, individual displacements

Alfredo Viola

2005-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

LANSCE | Lujan Center | Highlights | Local iron displacements and  

NLE Websites -- All DOE Office Websites (Extended Search)

Local iron displacements and magnetoelastic coupling in a spin-ladder Local iron displacements and magnetoelastic coupling in a spin-ladder compound Hypothesis: Is magnetoelastic coupling in [FeX4]-based materials, an important ingredient in the emergence of superconductivity? Lujan Center: Combined Total Scattering and magnetic structure determination (HIPD-NPDF) The study of local, average and magnetic structure shows the existenceof highly correlated local iron (Fe) displacements in the spin-ladder iron chalcogenide BaFe2Se3. Built of ferromagnetic [Fe4] plaquettes, the magnetic ground state correlates with local displacements of the Fe atoms. Knowledge of these local displacements is essential for properly understanding the electronic structure of these systems. As with the copper oxide superconductors two decades ago, these

42

Evaluation of two-dimensional displacement components of symmetrical deformation by phase-shifting electronic speckle pattern interferometry  

Science Conference Proceedings (OSTI)

A method for the isolation of two-dimensional (2D) displacement components by using one phase map obtained by phase-shifting electronic speckle pattern interferometry (ESPI)is presented. When the typical ESPI is used for displacement measurement, a mixed phase distribution of deformation is measured. If the deformation of the object is symmetrical, two components of deformation can be separated from each other by using the mixed phase distribution. We turn over the mixed phase map first to obtain the second phase map, and then overlap them. Two displacement components can be separated from each other by boundary alignment and algebraic calculation between the two phase maps. This method has been proved feasible by a typical three-point bending experiment. Some experimental results are offered and compared with the results obtained by a dual-beam symmetrical illuminations experiment. This technique presented provides an alternative approach to 2D deformation measurement.

Sun Ping

2007-05-20T23:59:59.000Z

43

Influence of Viscous and Capillary Forces on Immiscible Fluid Displacement: Pore-Scale Experimental Study in a Water-Wet Micromodel Demonstrating Viscous and Capillary Fingering  

Science Conference Proceedings (OSTI)

Unstable immiscible fluid displacement in porous media affects geological carbon sequestration, enhanced oil recovery, and groundwater contamination by nonaqueous phase liquids. Characterization of immiscible displacement processes at the pore-scale is important to better understand macroscopic processes at the continuum-scale. A series of displacement experiments was conducted to investigate the impacts of viscous and capillary forces on displacement stability and fluid saturation distributions in a homogeneous water-wet pore network micromodel with precisely-microfabricated pore structures. Displacements were studied using seven wetting-nonwetting fluid pairs with viscosity ratios M (viscosity of the advancing nonwetting fluid divided by the viscosity of the displaced wetting fluid) ranging four orders of magnitude from logM = -1.95 to 1.88. The micromodel was initially saturated with either polyethylene glycol 200 (PEG200) or water as a wetting fluid, which was then displaced by a nonwetting alkane fluid under different flow rates. Capillary numbers (Ca) ranged over four orders of magnitude for the reported experiments, from logCa = -5.88 to -1.02. Fluorescent microscopy was used to visualize displacement and measure nonwetting fluid saturation distributions. These experiments extend the classical work by Lenormand et al. by using water-wet micromodels, high-precision fabrication, and enhanced image analysis of the saturation distributions. In the micromodel experiments initially saturated with PEG200, a viscous wetting fluid, unstable displacement occurred by viscous fingering over the whole range of imposed capillary numbers. For the experiments initially saturated with water, unstable displacement occurred by capillary fingering at low capillary numbers. When the viscous forces were increased by increasing the injection rate, crossover into stable displacement was observed for the fluid pairs with M > 0. For unstable displacement experiments applying the same capillary number for the various fluid pairs, nonwetting fluid saturations were higher when capillary fingering was the dominant fingering process compared to viscous fingering. Our saturation distributions are consistent with other published experimental work and confirm the numerical results obtained by Lenormand et al.

Zhang, Changyong; Oostrom, Martinus; Wietsma, Thomas W.; Grate, Jay W.; Warner, Marvin G.

2011-08-18T23:59:59.000Z

44

The effect of Coulombic friction on spatial displacement statistics  

E-Print Network (OSTI)

The phenomenon of Coulombic friction enters the stochastic description of dry friction between two solids and the statistic characterization of vibrating granular media. Here we analyze the corresponding Fokker-Planck equation including both velocity and spatial components, exhibiting a formal connection to a quantum mechanical harmonic oscillator in the presence of a delta potential. Numerical solutions for the resulting spatial displacement statistics show a crossover from exponential to Gaussian displacement statistics. We identify a transient intermediate regime that exhibits multiscaling properties arising from the contribution of Coulombic friction. These results are relevant to recent experimental studies of the displacement of colloidal particles along bilayer membrane tubes.

Menzel, Andreas M

2010-01-01T23:59:59.000Z

45

Method of making self-calibrated displacement measurements  

DOE Patents (OSTI)

A method for monitoring the displacement of an object having an acoustically reflective surface at least partially submerged in an acoustically conductive medium. The reflective surface is designed to have a stepped interface responsive to an incident acoustic pulse to provide separate discrete reflected pulses to a receiving transducer. The difference in the time of flight of the reflected acoustic signals corresponds to the known step height and the time of travel of the signals to the receiving transducer provides a measure of the displacement of the object. Accordingly, the reference step length enables simultaneous calibration of each displacement measurement.

Pedersen, Herbert N. (Richland, WA)

1977-01-01T23:59:59.000Z

46

A scale model study of displacement ventilation with chilled ceilings  

E-Print Network (OSTI)

Displacement ventilation is a form of air-conditioning which provides good air quality and some energy savings. The air quality is better than for a conventional mixed ventilation system. The maximum amount of cooling that ...

Holden, Katherine J. A. (Katherine Joan Adrienne)

1995-01-01T23:59:59.000Z

47

Bubble-induced damping in displacement-driven microfluidic flows  

E-Print Network (OSTI)

Bubble damping in displacement-driven microfluidic flows was theoretically and experimentally investigated for a Y-channel microfluidic network. The system was found to exhibit linear behavior for typical microfluidic flow ...

Lee, Jongho

48

Key Factors in Displacement Ventilation Systems for Better IAQ  

E-Print Network (OSTI)

This paper sets up a mathematical model of three-dimensional steady turbulence heat transfer in an air-conditioned room of multi-polluting heat sources. Numerical simulation helps identify key factors in displacement ventilation systems that affect air-quality in rooms of multi-polluting heat sources. Results show that it is very important to determine the suitable air-intemperature , air-inflow, and heat source quantity and dispersion, to obtain better displacement ventilation results.

Wang, X.; Chen, J.; Li, Y.; Wang, Z.

2006-01-01T23:59:59.000Z

49

DOE's Office of Science Sets up Program to Aid Scientists Displaced...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sets up Program to Aid Scientists Displaced by Hurricane Katrina DOE's Office of Science Sets up Program to Aid Scientists Displaced by Hurricane Katrina September 9, 2005 -...

50

Displacement Damage in Silicon Carbide Irradiated in Fission Reactors  

SciTech Connect

Calculations are performed for displacement damage in SiC due to irradiation in the neutron environments of various types of nuclear reactors using the best available models and nuclear data. The displacement damage calculations use recently developed damage functions for SiC that are based on extensive molecular dynamics simulations of displacement events1. Displacements per atom (DPA) cross sections for SiC have been calculated as a function of neutron energy, and they are presented here in tabular form to facilitate their use as the standard measure of displacement damage for irradiated SiC. DPA cross sections averaged over the neutron energy spectrum are calculated for neutron spectra in the cores of typical commercial reactors and in the test sample irradiation regions of several materials test reactors used in both past and present irradiation testing. Particular attention is focused on a next-generation high-temperature gas-cooled pebble bed reactor, for which the high-temperature properties of silicon carbide fiber-reinforced silicon carbide composites are well suited. Calculated transmutations and activation levels in a pebble bed reactor are compared to those in other reactors.

Heinisch, Howard L.; Greenwood, Lawrence R.; Weber, William J.; Williford, Rick E.

2004-04-05T23:59:59.000Z

51

Visualization and simulation of immiscible displacement in fractured systems using micromodels: Steam injection  

SciTech Connect

A study of steam and hot water injection processes in micromodel geometries that mimic a matrix-fracture system was undertaken. The followings were observed: Light components existing in the crude oil generated a very high efficient gas-drive at elevated temperatures. This gas generation in conjunction with natural surfactant existing in the crude oil, lead to the formation of a foam in the fracture and to improved displacement in the matrix. We observed that the steam enters the fracture and the matrix depending on whether the steam rate exceeds or not the critical values. The resulting condensed water also moves preferentially into the matrix or the fracture depending on the corresponding capillary number. Since steam is a non-wetting phase as a vapor, but becomes a wetting phase when condensed in a water-wet system, steam injection involves both drainage and imbibition. It was found that all of the oil trapped by the condensed water can be mobilized and recovered when in contact with steam. We also examined hot-water displacement. In comparison with cold-water experiments at the same capillary number, a higher sweep efficiency for both light and heavy oils was observed. It was found that the loam generated in the fracture during hot-water injection, is more stable than in steamflooding. Nonetheless, hot-water injection resulted into less efficient displacement in its absence.

Yortsos, Y.C.

1995-07-01T23:59:59.000Z

52

Computer-assisted tomography for the observation of oil displacement in porous media  

SciTech Connect

Computer-assisted tomography (CAT) is used to obtain cross-sectional images of Berea sandstone cores during oil displacement experiments. Local oil saturation averaged over an area of about 0.03X0.03 in. (0.8X0.8 mm) square is computed as a function of spatial position and time. A series of CAT scan images displaying the time evolution of the fluid distribution at one cross section are shown to illustrate the formation of viscous fingers.

Wang, S.Y.; Ayral, S.; Gryte, C.C.

1984-02-01T23:59:59.000Z

53

Nano-displacement measurements using spatially multimode squeezed light  

E-Print Network (OSTI)

We demonstrate the possibility of surpassing the quantum noise limit for simultaneous multi-axis spatial displacement measurements that have zero mean values. The requisite resources for these measurements are squeezed light beams with exotic transverse mode profiles. We show that, in principle, lossless combination of these modes can be achieved using the non-degenerate Gouy phase shift of optical resonators. When the combined squeezed beams are measured with quadrant detectors, we experimentally demonstrate a simultaneous reduction in the transverse x- and y- displacement fluctuations of 2.2 dB and 3.1 dB below the quantum noise limit.

N. Treps; N. Grosse; W. P. Bowen; M. T. L. Hsu; A. Maitre; C. Fabre; H. -A. Bachor; P. K. Lam

2003-11-19T23:59:59.000Z

54

Potential displacement of petroleum imports by solar energy technologies  

DOE Green Energy (OSTI)

The United States currently imports close to half of its petroleum requirements. This report delineates the economic, social, and political costs of such a foreign oil dependency. These costs are often intangible, but combined they clearly constitute a greater price for imported petroleum than the strictly economic cost. If we can assume that imported oil imposes significant socioeconomic costs upon the American economy and society, one way to reduce these costs is to develop alternative, domestic energy sources - such as solar energy technologies - which can displace foreign petroleum. The second half of this report estimates that by the year 2000, solar energy technologies can displace 3.6 quads of petroleum. This figure includes solar energy applications in utilities, industrial and agricultural process heat, and transportation. The estimate can be treated as a lower bound; if the United States were to achieve the proposed goal of 20 quads by 2000, the amount of displaced oil probably would be greater. Although all the displaced oil would not be imported, the reduction in imported petroleum would relieve many of the conditions that increase the present cost of foreign oil to the American consumer.

DeLeon, P.; Jackson, B.L.; McNown, R.F.; Mahrenholz, G.J.

1980-05-01T23:59:59.000Z

55

Micronized-coal-water slurry sprays from a diesel engine positive displacement fuel injection system  

DOE Green Energy (OSTI)

Experiments have been conducted to characterize the sprays from a modified positive displacement fuel injection system for a diesel engine. Diesel fuel water and three concentrations of micronized-coal-water slurry were used in these experiments. The injection system includes an injection jerk pump driven by an electric motor, a specially designed diaphragm to separate the abrasive coal slurry fuel from the pump, and a single-hole fuel nozzle. The sprays were injected into a pressurized chamber equipped with windows. High speed movies and still photographs of the sprays were obtained. In addition, instaneous fuel line pressures and needle lifts were obtained. Data were acquired as a function of fluid, nozzle orifice diameter, rack setting and chamber conditions. The high speed movies were used to determine spray penetration and spray growth.

Caton, J.A.; Kihm, K.D.; Seshadri, A.K.; Zicterman, G. [Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering

1991-12-31T23:59:59.000Z

56

The Effect of Load-Line Displacement Rate on the SCC Growth Rate of Nickel Alloys and Mechanistic Implications  

DOE Green Energy (OSTI)

A key set of SCC growth experiments was designed to test the hypothesis that deformation/creep is the rate controlling step in LPSCC. These tests were performed on Alloy X-750 AH compact tension specimens at a various constant displacement rates. The deformation/creep rate within the crack tip zone is proportional to the test displacement rate. If crack growth rates were observed to increase with the load-line displacement rate, then this would indicate that deformation/creep is a critical SCC mechanism process. However, results obtained from the load-line displacement tests did not find X-750 AH SCC growth rate to be dependent on the position rate and therefore do not support the assumption that deformation/creep is the rate controlling process in LPSCC. The similarities between the SCC response of X-750, Alloy 600 and EN82H suggests that it is likely that the same SCC process is occurring for all these alloys (i.e., the same rate controlling step) and that deformation based models are also inappropriate for Alloy 600 and EN82H. The strong temperature and coolant hydrogen dependencies exhibited by these alloys make it more likely that nickel alloy LPSCC is controlled by an environmental or corrosion driven process.

D Morton

2005-10-19T23:59:59.000Z

57

Macroscopic displaced thermal field as the entanglement catalyst  

E-Print Network (OSTI)

We show that entanglement of multiple atoms can arise via resonant interaction with a displaced thermal field with a macroscopic photon-number. The cavity field acts as the catalyst, which is disentangled with the atomic system after the operation. Remarkably, the entanglement speed does not decrease as the average photon-number of the mixed thermal state increases. The atoms may evolve to a highly entangled state even when the photon-number of the cavity mode approaches infinity.

Zheng, Shi-Biao

2012-01-01T23:59:59.000Z

58

Macroscopic displaced thermal field as the entanglement catalyst  

E-Print Network (OSTI)

We show that entanglement of multiple atoms can arise via resonant interaction with a displaced thermal field with a macroscopic photon-number. The cavity field acts as the catalyst, which is disentangled with the atomic system after the operation. Remarkably, the entanglement speed does not decrease as the average photon-number of the mixed thermal state increases. The atoms may evolve to a highly entangled state even when the photon-number of the cavity mode approaches infinity.

Shi-Biao Zheng

2012-03-07T23:59:59.000Z

59

Proceedings: Working Fluids for Positive Displacement Chillers: Research Workshop  

Science Conference Proceedings (OSTI)

The phaseout of chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) requires development of non-ozone-depleting refrigerants for commercial chillers. When implemented, these new refrigerants must operate with efficiencies at least equal to those of the CFCs and HCFCs to avoid increasing energy use or utility peak demands. This July 1992 EPRI workshop identified refrigerant and equipment R&D needs for developing ozone-safe positive displacement chillers.

1993-03-01T23:59:59.000Z

60

STRAIGHTENING THE DENSITY-DISPLACEMENT RELATION WITH A LOGARITHMIC TRANSFORM  

Science Conference Proceedings (OSTI)

We investigate the use of a logarithmic density variable in estimating the Lagrangian displacement field motivated by the success of a logarithmic transformation in restoring information to the matter power spectrum. The logarithmic relation is an extension of the linear relation, motivated by the continuity equation, in which the density field is assumed to be proportional to the divergence of the displacement field; we compare the linear and logarithmic relations by measuring both of these fields directly in a cosmological N-body simulation. The relative success of the logarithmic and linear relations depends on the scale at which the density field is smoothed. Thus we explore several ways of measuring the density field, including Cloud-In-Cell smoothing, adaptive smoothing, and the (scale-independent) Delaunay tessellation, and we use both a Fourier-space and a geometrical tessellation approach to measuring the divergence. We find that the relation between the divergence of the displacement field and the density is significantly tighter and straighter with a logarithmic density variable, especially at low redshifts and for very small ({approx}2 h{sup -1} Mpc) smoothing scales. We find that the grid-based methods are more reliable than the tessellation-based method of calculating both the density and the divergence fields, though in both cases the logarithmic relation works better in the appropriate regime, which corresponds to nonlinear scales for the grid-based methods and low densities for the tessellation-based method.

Falck, Bridget L.; Neyrinck, Mark C.; Aragon-Calvo, Miguel A.; Lavaux, Guilhem; Szalay, Alexander S. [Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles St., Baltimore, MD 21218 (United States)

2012-01-20T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Molecular dynamics simulation of displacement cascades in FeCr alloys  

E-Print Network (OSTI)

Molecular dynamics simulation of displacement cascades in Fe­Cr alloys L. Malerba a,*, D. Terentyev by displacement cascades in the relevant material. Molecular dynamics (MD) is well known to be the simulation tool

62

Modification of the Dykstra-Parsons method to incorporate Buckley-Leverett displacement theory for waterfloods.  

E-Print Network (OSTI)

??The Dykstra-Parsons model describes layer 1-D oil displacement by water in multilayered reservoirs. The main assumptions of the model are: piston-like displacement of oil by (more)

Gasimov, Rustam Rauf

2005-01-01T23:59:59.000Z

63

Estimating Undrained Strength of Clays from Direct Shear Testing at Fast Displacement Rates  

E-Print Network (OSTI)

and Germaine, J.T. (1996), Rate-dependent undrained shearTesting at Fast Displacement Rates Andrew D. Bro 1 , M.variable shear displacement rates on specimens composed of

Bro, Andrew D; Stewart, Jonathan P; Pradel, Daniel E

2013-01-01T23:59:59.000Z

64

Effects of carbon dioxide injection on the displacement of methane and carbonate dissolution in sandstone cores  

E-Print Network (OSTI)

Previous coreflood experiments show that CO2 sequestration in carbonate rocks is a win-win technology. Injecting CO2 into a depleted gas reservoir for storage also produces hitherto unrecoverable gas. This in turn helps to defray the cost of CO2 sequestration. This thesis reports the results from experiments conducted on a Berea sandstone core. The experiments include displacement experiments and unconfined compressive strength tests. The displacement experiments were conducted at cell pressures of 1500 psig and temperature of 60oC using a 1 foot long and 1 inch diameter Berea sandstone core. Pure CO2 and treated flue gas (99.433 % mole CO2) were injected into the Berea sandstone core initially saturated with methane at a pressure of 1500 psig and 800 psig respectively. Results from these experiments show that the dispersion coefficient for both pure CO2 and treated flue gas are relatively small ranging from 0.18-0.225 cm2/min and 0.28-0.30 cm2/min respectively. The recovery factor of methane at break-through is relatively high ranging from 71%-80% of original gas in place for pure CO2 and 90% to 92% OGIP for treated flue gas, the difference resulting from different cell pressures used. Therefore it would appear that, in practice injection of treated flue gas is a cheaper option compared to pure CO2 injection. For the unconfined compressive strength tests, corefloods were first conducted at high flowrates ranging from 5 ml/min to 20 ml/ min, pressures of 1700-1900 Psig and a temperature of 65oC. These conditions simulate injecting CO2 originating from an electric power generation plant into a depleted gas reservoir and model the near well bore situation. Results from these experiments show a 1% increase in porosity and changes in injectivity due to permeability impairment. The cores are then subjected to an unconfined compressive strength test. Results from these tests do not show any form of weakening of the rock due to CO2 injection.

Maduakor, Ekene Obioma

2006-08-01T23:59:59.000Z

65

Particle sorter comprising a fluid displacer in a closed-loop fluid circuit  

SciTech Connect

Disclosed herein are methods and devices utilizing a fluid displacer in a closed-loop fluid circuit.

Perroud, Thomas D. (San Jose, CA); Patel, Kamlesh D. (Dublin, CA); Renzi, Ronald F. (Tracy, CA)

2012-04-24T23:59:59.000Z

66

Experimental study of crossover from capillary to viscous fingering for supercritical CO2 - water displacement in a homogeneous pore network  

Science Conference Proceedings (OSTI)

Carbon sequestration in saline aquifers involves displacing resident brine from the pore space by supercritical CO2 (scCO2). The displacement process is considered unstable due to the unfavorable viscosity ratio (logM = -5.21), respectively. Crossover from capillary to viscous fingering was observed for logCa = -5.91~-5.21, resulting in a large decrease in scCO2 saturation. The discontinuous-rate experimental results confirmed the decrease in nonwetting fluid saturation during crossover from capillary to viscous fingering predicted by numerical simulations by Lenormand et al. (1988).1 Capillary fingering was the only mechanism that dominates all injection rates in the continuous-rate experiment, and resulted in monotonic increase in scCO2 saturation.

Wang, Ying; Zhang, Changyong; Wei, Ning; Oostrom, Martinus; Wietsma, Thomas W.; Li, Xiaochun; Bonneville, Alain HR

2013-01-01T23:59:59.000Z

67

Finding New Thermoelectric Compounds Using Crystallographic Data: Atomic Displacement Parameters  

DOE Green Energy (OSTI)

A new structure-property relationship is discussed which links atomic displacement parameters (ADPs) and the lattice thermal conductivity of clathrate-like compounds. For many clathrate-like compounds, in which one of the atom types is weakly bound and ''rattles'' within its atomic cage, room temperature ADP information can be used to estimate the room temperature lattice thermal conductivity, the vibration frequency of the ''rattler'', and the temperature dependence of the heat capacity. Neutron data and X-ray crystallography data, reported in the literature, are used to apply this analysis to several promising classes of thermoelectric materials.

Chakoumakos, B.C.; Mandrus, D.G.; Sales, B.C.; Sharp, J.W.

1999-08-29T23:59:59.000Z

68

Carbonaceous adsorbent regeneration and halocarbon displacement by hydrocarbon gases  

DOE Patents (OSTI)

This invention describes a process for regeneration of halocarbon bearing carbonaceous adsorbents through which a carbonaceous adsorbent is contacted with hydrocarbon gases, preferably propane, butane and pentane at near room temperatures and at atmospheric pressure. As the hydrocarbon gases come in contact with the adsorbent, the hydrocarbons displace the halocarbons by physical adsorption. As a result of using this process, the halocarbon concentration and the hydrocarbon eluant is increased thereby allowing for an easier recovery of pure halocarbons. By using the process of this invention, carbonaceous adsorbents can be regenerated by an inexpensive process which also allows for subsequent re-use of the recovered halocarbons.

Senum, Gunnar I. (Patchogue, NY); Dietz, Russell N. (Patchogue, NY)

1994-01-01T23:59:59.000Z

69

Carbonaceous adsorbent regeneration and halocarbon displacement by hydrocarbon gases  

DOE Patents (OSTI)

This invention describes a process for regeneration of halocarbon bearing carbonaceous adsorbents through which a carbonaceous adsorbent is contacted with hydrocarbon gases, preferably propane, butane and pentane at near room temperatures and at atmospheric pressure. As the hydrocarbon gases come in contact with the adsorbent, the hydrocarbons displace the halocarbons by physical adsorption. As a result of using this process, the halocarbon concentration and the hydrocarbon eluant is increased thereby allowing for an easier recovery of pure halocarbons. By using the process of this invention, carbonaceous adsorbents can be regenerated by an inexpensive process which also allows for subsequent re-use of the recovered halocarbons. 8 figures.

Senum, G.I.; Dietz, R.N.

1994-04-05T23:59:59.000Z

70

Large scale passive force-displacement and dynamic earth pressure experiments and simulations  

E-Print Network (OSTI)

depth (Figure 2.1). Thin plywood lined the sides of thesheeting covered the plywood to minimize friction betweenrammers (Figure 4.6). Plywood and three layers of smooth

Wilson, Patrick Richard

2009-01-01T23:59:59.000Z

71

Performance comparison of fiber tips in interferometric displacement mesurements  

SciTech Connect

Fiber optic displacement sensors have many potential advantages over traditional displacement measurement techniques, including small size, immunity to electromagnetic interference, electrical isolation, and high resolution. In this report, we focus on an interferometric fiber optic sensor, where the gap between the fiber tip and the device under test forms a Fabry-Perot resonant cavity. An optical interrogator measures the reflected intensity at wavelengths ranging from 1510 to 1590 nm. The spacing between resonant frequencies allows us to determine the distance from the tip to the device under test. We consider ferrule connector angled physical contact (FC/APC), ferrule connector ultra physical contact (FC/UPC) and unpolished cleaved tips and compare their influence on sensor performance. A plane wave propagation model is proposed for predicting tip effects. Comparisons are made on the basis of sensor measurement range, resolution, and sensitivity to changes in test conditions. In this paper, we discuss the experimental setup, detail our analysis, and present test results with recommendations for the applications of each tip.

Moro, Erik [Los Alamos National Laboratory; Grahn, Rick R [Los Alamos National Laboratory; Karimi, Hussain H [Los Alamos National Laboratory; Wilson, Kyle L [Los Alamos National Laboratory; Puckett, Anthony D [Los Alamos National Laboratory

2011-01-24T23:59:59.000Z

72

Performance comparison of fiber optic tips in interferrometric displacement measurement  

SciTech Connect

Fiber optic displacement sensors have many potential advantages over traditional displacement measurement techniques, including small size, immunity to electromagnetic interference, electrical isolation, and high resolution. In this report, we focus on an interferometric fiber optic sensor, where the gap between the fiber tip and the device under test forms a Fabry-Perot resonant cavity. An optical interrogator measures the reflected intensity at wavelengths ranging from 1510 to 1590 nm. The spacing between resonant frequencies allows us to determine the distance from the tip to the device under test. We consider ferrule connector angled physical contact (FC/APC), ferrule connector ultra physical contact (FC/UPC) and unpolished cleaved tips and compare their influence on sensor performance. A plane wave propagation model is proposed for predicting tip effects. Comparisons are made on the basis of sensor measurement range, resolution, and sensitivity to changes in test conditions. In this paper, we discuss the experimental setup, detail our analysis, and present test results with recommendations for the applications of each tip.

Moro, Erik A [Los Alamos National Laboratory; Puckett, Anthony D [Los Alamos National Laboratory; Grahn, Rick [UNM; Karimi, Hussain [UCSD; Wilson, Kyle [ROSE HULMAN INSTITUTE OT TECH.

2010-10-21T23:59:59.000Z

73

The Vroman effect: a molecular level description of fibrinogen displacement  

E-Print Network (OSTI)

Investigations of specific and nonspecific interactions of biomolecules at liquid/solid interfaces are presented. To investigate specific multivalent ligand-receptor interactions, bivalent antibodies and haptens bound to solid supported membrane were used as models for ligand-receptor coupling. Novel microfabrication strategies, which included spatially addressed bilayer arrays and heterogeneous microfluidic assays, in conjunction with total internal reflection microscopy, was employed to achieve this goal. These high throughput techniques allow thermodynamic data of binding interactions to be acquired with only a few microliters of analyte and superior signal to noise. The results yield both the first and second dissociation constant for bivalent IgG antibodies with membrane bound hapten molecules. Studies were conducted both as a function of hapten density and cholesterol content in the membrane. Another research area of this dissertation is the molecular level description of nonspecific adsorption and displacement of the model protein, fibrinogen, onto hydrophilic surfaces. Techniques such as atomic force microscopy, immunochemical assays, fluorescence microscopy, and vibrational sum frequency spectroscopy were employed to probe this system. The results demonstrate that the protein's ?C domains play the critical role. When fibrinogen is adsorbed to a hydrophilic surface via these moieties, its displacement rate in the presence of human plasma is approximately 170 times faster than when these domains are not in direct surface contact. Even more significantly, spectroscopic studies show evidence for highly aligned Arg and Lys residues interacting with the negatively charged substrate only when the ?C domains make direct surface contact. The interfacial ordering of these residues appears to be the hallmark of a weak and labile electrostatic attraction between the substrate and the adsorbed macromolecule.

Jung, Seung-Yong

2003-12-01T23:59:59.000Z

74

Regeneration of strong-base anion-exchange resins by sequential chemical displacement  

DOE Patents (OSTI)

A method for regenerating strong-base anion exchange resins utilizing a sequential chemical displacement technique with new regenerant formulation. The new first regenerant solution is composed of a mixture of ferric chloride, a water-miscible organic solvent, hydrochloric acid, and water in which tetrachloroferrate anion is formed and used to displace the target anions on the resin. The second regenerant is composed of a dilute hydrochloric acid and is used to decompose tetrachloroferrate and elute ferric ions, thereby regenerating the resin. Alternative chemical displacement methods include: (1) displacement of target anions with fluoroborate followed by nitrate or salicylate and (2) displacement of target anions with salicylate followed by dilute hydrochloric acid. The methodology offers an improved regeneration efficiency, recovery, and waste minimization over the conventional displacement technique using sodium chloride (or a brine) or alkali metal hydroxide.

Brown, Gilbert M. (Knoxville, TN); Gu, Baohua (Oak Ridge, TN); Moyer, Bruce A. (Oak Ridge, TN); Bonnesen, Peter V. (Knoxville, TN)

2002-01-01T23:59:59.000Z

75

Engineering of Schroedinger cat states by a sequence of displacements and photon additions or subtractions  

SciTech Connect

A method to generate Schroedinger cat states in free propagating optical fields based on the use of displaced states (or displacement operators) is developed. Some optical schemes with photon-added coherent states are studied. The schemes are modifications of the general method based on a sequence of displacements and photon additions or subtractions adjusted to generate Schroedinger cat states of a larger size. The effects of detection inefficiency are taken into account.

Podoshvedov, S. A., E-mail: podoshvedov@mail.ru [Seoul National University, Center for Subwavelength Optics and Department of Physics and Astronomy (Korea, Republic of)

2011-04-15T23:59:59.000Z

76

Impacts of Electric Vehicles on Primary Energy Consumption and Petroleum Displacement  

E-Print Network (OSTI)

and New York. Weestimate petroleum displacement by EVs forb b c 1990 Marginal mix Coal Petroleum NG Nuclear a Dthershydropower geothermal, petroleum coke,biomass, wood,waste,

Wang, Quanlu; Delucchi, Mark A.

1991-01-01T23:59:59.000Z

77

The illusion of peace: the fate of the Baltic Displaced Persons, 1945-1952  

E-Print Network (OSTI)

Following the end of World War II, the Allied forces faced an immediate large- scale refugee crisis in Europe. Efforts focused on returning the millions of refugees to their homes as quickly as possible. Though the majority did return home, nearly a million refugees from Soviet-controlled Eastern Europe refused to do so. Reclassified as Displaced Persons (DPs) and placed in holding camps by the Occupational Authorities, these refugees demanded that Allied leaders give them the chance to immigrate and resettle elsewhere. Immigration historians of this period have focused mainly on the experiences of the Jewish refugees during the Holocaust and the establishment of Israel. Other studies depict the chaos in Germany immediately following the war, describing the DPs as an unstable factor in an already unstable situation. While important, these works tend to overlook the fate of non-Jewish refugees who would not return to their homes. Additionally, these works overlook the many immigration and resettlement schemes put in place to solve the DP situation and stabilize Europe, focusing instead on economic forces and growing Cold War tensions. This thesis looks at the experiences of the Baltic DPs, those from Latvia, Lithuania, and Estonia. Beginning with a brief history of the three countries and their peoples experiences during the war, this study also looks at their lives in the DP camps and explores their reasons for not returning home. It also recounts the Allies decision to promote resettlement rather than repatriation as the solution to the refugee problem by focusing on the immigration programs of the four main recipient countries, Britain, the United States, Canada, and Australia. This thesis argues that the majority of the Baltic DPs came from educated, middle class backgrounds and as such, they were widely sought after by the recipient countries as the most suitable for immigration. A final argument is that disagreements over their fate between the United States, England, and the Soviet Union, fueled the Cold War.

Eastes, Victoria Marite Helga

2007-12-01T23:59:59.000Z

78

A Displacement-Based Error Measure Applied in a Regional Ensemble Forecasting System  

Science Conference Proceedings (OSTI)

Errors in regional forecasts often take the form of phase errors, where a forecasted weather system is displaced in space or time. For such errors, a direct measure of the displacement is likely to be more valuable than traditional measures. A ...

Christian Keil; George C. Craig

2007-09-01T23:59:59.000Z

79

DNA hybridization kinetics: zippering, internal displacement and sequence dependence  

E-Print Network (OSTI)

While the thermodynamics of DNA hybridization is well understood, much less is known about the kinetics of this classic system. Filling this gap in our understanding has new urgency because DNA nanotechnology often depends critically on binding rates. Here we use a coarse-grained model to explore the hybridization kinetics of DNA oligomers, finding that strand association proceeds through a complex set of intermediate states. Successful binding events start with the formation of a few metastable base-pairing interactions, followed by zippering of the remaining bonds. However, despite reasonably strong interstrand interactions, initial contacts frequently fail to lead to zippering because the typical configurations in which they form differ from typical states of similar enthalpy in the double-stranded equilibrium ensemble. Therefore, if the association process is analyzed on the base-pair (secondary structure) level, it shows non-Markovian behavior. Initial contacts must be stabilized by two or three base pairs before full zippering is likely, resulting in negative effective activation enthalpies. Non-Arrhenius behavior is observed as the number of base pairs in the effective transition state increases with temperature. In addition, we find that alternative pathways involving misbonds can increase association rates. For repetitive sequences, misaligned duplexes frequently rearrange to form fully paired duplexes by two distinct processes which we label `pseudoknot' and `inchworm' internal displacement. We show how the above processes can explain why experimentally observed association rates of GC-rich oligomers are higher than rates of AT-rich equivalents. More generally, we argue that association rates can be modulated by sequence choice.

Thomas E. Ouldridge; Petr ulc; Flavio Romano; Jonathan P. K. Doye; Ard A. Louis

2013-03-14T23:59:59.000Z

80

Coal-water slurry spray characteristics of a positive displacement fuel injection system  

DOE Green Energy (OSTI)

Experiments have been completed to characterized coal-water slurry sprays from a modified positive displacement fuel injection system of a diesel engine. The injection system includes an injection jerk pump driven by an electric motor, a specially designed diaphragm to separate the abrasive coal from the pump, and a single-hole fuel nozzle. The sprays were injected into a pressurized chamber equipped with windows. High speed movies and instantaneous fuel line pressures were obtained. For injection pressures of order 30 MPa or higher, the sprays were similar for coal-water slurry, diesel fuel and water. The time until the center core of the spray broke-up (break-up time) was determined from both the movies and from a model using the fuel line pressures. Results from these two independent procedures were in good agreement. For the base conditions, the break-up time was 0.58 and 0.50 ms for coal-water slurry and diesel fuel, respectively. The break-up times increased with increasing nozzle orifice size and with decreasing chamber density. The break-up time was not a function of coal loading for coal loadings up to 53%. Cone angles of the sprays were dependent on the operating conditions and fluid, as well as on the time and location of the measurement. For one set of cases studied, the time-averaged cone angle was 15.9{degree} and 16.3{degree} for coal-water slurry and diesel fuel, respectively.

Seshadri, A.K.; Caton, J.A.; Kihm, K.D. [Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering

1992-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Effect of Body Mass Index on Intrafraction Prostate Displacement Monitored by Real-Time Electromagnetic Tracking  

Science Conference Proceedings (OSTI)

Purpose: To evaluate, using real-time monitoring of implanted radiofrequency transponders, the intrafraction prostate displacement of patients as a function of body mass index (BMI). Methods and Materials: The motions of Beacon radiofrequency transponders (Calypso Medical Technologies, Seattle, WA) implanted in the prostate glands of 66 men were monitored throughout the course of intensity modulated radiation therapy. Data were acquired at 10 Hz from setup to the end of treatment, but only the 1.7 million data points with a 'beam on' tag were used in the analysis. There were 21 obese patients, with BMI {>=}30 and 45 nonobese patients in the study. Results: Mean displacements were least in the left-right lateral direction (0.56 {+-} 0.24 mm) and approximately twice that magnitude in the superior-inferior and anterior-posterior directions. The net vector displacement was larger still, 1.95 {+-} 0.47 mm. Stratified by BMI cohort, the mean displacements per patient in the 3 Cartesian axes as well as the net vector for patients with BMI {>=}30 were slightly less (<0.2 mm) but not significantly different than the corresponding values for patients with lower BMIs. As a surrogate for the magnitude of oscillatory noise, the standard deviation for displacements in all measured planes showed no significant differences in the prostate positional variability between the lower and higher BMI groups. Histograms of prostate displacements showed a lower frequency of large displacements in obese patients, and there were no significant differences in short-term and long-term velocity distributions. Conclusions: After patients were positioned accurately using implanted radiofrequency transponders, the intrafractional displacements in the lateral, superior-inferior, and anterior-posterior directions as well as the net vector displacements were smaller, but not significantly so, for obese men than for those with lower BMI.

Butler, Wayne M., E-mail: wbutler@wheelinghospital.org [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Wheeling Jesuit University, Wheeling, West Virginia (United States); Morris, Mallory N. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)] [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Merrick, Gregory S. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States) [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States); Wheeling Jesuit University, Wheeling, West Virginia (United States); Kurko, Brian S.; Murray, Brian C. [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)] [Schiffler Cancer Center, Wheeling Hospital, Wheeling, West Virginia (United States)

2012-10-01T23:59:59.000Z

82

DOE's Office of Science Sets up Program to Aid Scientists Displaced by  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE's Office of Science Sets up Program to Aid Scientists Displaced DOE's Office of Science Sets up Program to Aid Scientists Displaced by Hurricane Katrina DOE's Office of Science Sets up Program to Aid Scientists Displaced by Hurricane Katrina September 9, 2005 - 10:08am Addthis WASHINGTON, DC -- The Department of Energy's (DOE) Office of Science has established a program to assist scientists displaced by the effects of Hurricane Katrina. "Our colleagues in science have historically been a close-knit, generous community," wrote Dr. Raymond L. Orbach, director of DOE's Office of Science, in a letter describing the program to: universities and colleges, including those in Alabama, Louisiana and Mississippi; professional scientific societies; other government science funding agencies; and DOE National Laboratories. "The Office of Science

83

Beyond a Billion: Clean Cities Coaliations Have Displaced More Than a Billion Gallons of Gasoline  

DOE Green Energy (OSTI)

In 2004, DOE's Clean Cities achieved a milestone - displacing the equivalent of more than 1 billion gallons of gasoline since 1994. This fact sheet describes how Clean Cities achieved this goal.

Not Available

2005-10-01T23:59:59.000Z

84

Improving Petroleum Displacement Potential of PHEVs Using Enhanced Charging Scenarios: Preprint  

DOE Green Energy (OSTI)

Describes NREL's R&D on the petroleum displacement potential of plug-in hybrid vehicles; vehicles charged during the day would save about 5% more fuel than those charged at night.

Markel, T.; Smith, K.; Pesaran, A. A.

2009-05-01T23:59:59.000Z

85

Online Image-based Monitoring of Soft-tissue Displacements for Radiation Therapy of the Prostate  

Science Conference Proceedings (OSTI)

Purpose: Emerging prolonged, hypofractionated radiotherapy regimens rely on high-dose conformality to minimize toxicity and thus can benefit from image guidance systems that continuously monitor target position during beam delivery. To address this need we previously developed, as a potential add-on device for existing linear accelerators, a novel telerobotic ultrasound system capable of real-time, soft-tissue imaging. Expanding on this capability, the aim of this work was to develop and characterize an image-based technique for real-time detection of prostate displacements. Methods and Materials: Image processing techniques were implemented on spatially localized ultrasound images to generate two parameters representing prostate displacements in real time. In a phantom and five volunteers, soft-tissue targets were continuously imaged with a customized robotic manipulator while recording the two tissue displacement parameters (TDPs). Variations of the TDPs in the absence of tissue displacements were evaluated, as was the sensitivity of the TDPs to prostate translations and rotations. Robustness of the approach to probe force was also investigated. Results: With 95% confidence, the proposed method detected in vivo prostate displacements before they exceeded 2.3, 2.5, and 2.8 mm in anteroposterior, superoinferior, and mediolateral directions. Prostate pitch was detected before exceeding 4.7 Degree-Sign at 95% confidence. Total system time lag averaged 173 ms, mostly limited by ultrasound acquisition rate. False positives (FPs) (FP) in the absence of displacements did not exceed 1.5 FP events per 10 min of continuous in vivo imaging time. Conclusions: The feasibility of using telerobotic ultrasound for real-time, soft-tissue-based monitoring of target displacements was confirmed in vivo. Such monitoring has the potential to detect small clinically relevant intrafractional variations of the prostate position during beam delivery.

Schlosser, Jeffrey [Department of Mechanical Engineering, Stanford University, Stanford, CA (United States) [Department of Mechanical Engineering, Stanford University, Stanford, CA (United States); Department of Bioengineering, Stanford University, Stanford, CA (United States); Salisbury, Kenneth [Department of Computer Science, Stanford University, Stanford, CA (United States) [Department of Computer Science, Stanford University, Stanford, CA (United States); Department of Surgery, Stanford University, Stanford, CA (United States); Hristov, Dimitre, E-mail: dhristov@stanford.edu [Department of Radiation Oncology, Stanford University, Stanford, CA (United States)] [Department of Radiation Oncology, Stanford University, Stanford, CA (United States)

2012-08-01T23:59:59.000Z

86

DOE's Office of Science Sets Up Program to Aid Scientists Displaced by  

Office of Science (SC) Website

DOE's DOE's Office of Science Sets Up Program to Aid Scientists Displaced by Hurricane Katrina News Featured Articles Science Headlines 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 09.09.05 DOE's Office of Science Sets Up Program to Aid Scientists Displaced by Hurricane Katrina Print Text Size: A A A Subscribe FeedbackShare Page WASHINGTON, DC - The Department of Energy's (DOE) Office of Science has established a program to assist scientists displaced by the effects of Hurricane Katrina. "Our colleagues in science have historically been a close-knit, generous community," wrote Dr. Raymond L. Orbach, director of DOE's Office of

87

Quantifying the Interfractional Displacement of the Gastroesophageal Junction During Radiation Therapy for Esophageal Cancer  

Science Conference Proceedings (OSTI)

Purpose: Accounting for interfractional changes in tumor location improves the accuracy of radiation treatment delivery. The purpose of this study was to quantify the interfractional displacement of the gastroesophageal junction (GEJ) based on standard treatment setup in patients with esophageal cancer undergoing radiation therapy. Methods and Materials: Free-breathing four-dimensional computed tomography (4D-CT) datasets were acquired weekly from 22 patients during treatment for esophageal adenocarcinoma. Scans were registered to baseline (simulation) 4D-CT scans by using bony landmarks. The distance between the center of the GEJ contour on the simulation scan and the mean location of GEJ centers on subsequent scans was used to assess changes in GEJ location between fractions; displacement was also correlated with clinical and respiratory variables. Results: The mean absolute random error was 1.69 mm (range, 0.11-4.11 mm) in the lateral direction, 1.87 mm (range, 0.51-4.09 mm) in the anterior-posterior (AP) direction, and 3.09 mm (range, 0.99-6.16 mm) in the superior-inferior (SI) direction. The mean absolute systemic GEJ displacement between fractions was 2.88 mm lateral ({>=}5 mm in 14%), mostly leftward; 2.90 mm ({>=}5 mm in 14%) AP, mostly anterior; and 6.77 mm ({>=}1 cm in 18%) SI, mostly inferior. Variations in tidal volume and diaphragmatic excursion during treatment correlated strongly with systematic SI GEJ displacement (r = 0.964, p =}60 Gy) to the GEJ, with increased hot-spot to the adjacent stomach and lung base. Conclusion: We found large (>1-cm) interfractional displacements in the GEJ in the SI (especially inferior) direction that was not accounted for when skeletal alignment alone was used for patient positioning. Because systematic displacement in the SI direction had dosimetric impact and correlated with tidal volume, better accounting for depth of breathing is needed to reduce interfractional variability.

Wang Jingya [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Lin, Steven H., E-mail: shlin@mdanderson.org [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Dong Lei; Balter, Peter; Mohan, Radhe [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Komaki, Ritsuko; Cox, James D. [Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas (United States); Starkschall, George [Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas (United States)

2012-06-01T23:59:59.000Z

88

Performance characterization of an internsity-modulated fiber optic displacement sensor  

SciTech Connect

A testbed simulating an intensity-modulated fiber optic displacement sensor is experimentally characterized, and the implications regarding sensor design are discussed. Of interest are the intensity distribution of the transmitted optical signal and the relationships between sensor architecture and performance. Particularly, an intensity-modulated sensor's sensitivity, linearity, displacement range, and resolution are functions of the relative positioning of its transmitting and receiving fibers. In this paper, sensor architectures with various combinations of these performance metrics are discussed. A sensor capable of micrometer resolution is reported, and it is concluded that this work could lead to an improved methodology for sensor design.

Moro, Erik Allan [Los Alamos National Laboratory; Todd, Michael D [Los Alamos National Laboratory; Puckett, Santhony D [Los Alamos National Laboratory

2010-09-30T23:59:59.000Z

89

Performance characterization of an internsity-modulated fiber optic displacement sensor  

SciTech Connect

A testbed simulating an intensity-modulated fiber optic displacement sensor is experimentally characterized, and the implications regarding sensor design are discussed. Of interest are the intensity distribution of the transmitted optical signal and the relationships between sensor architecture and performance. Particularly, an intensity-modulated sensor's sensitivity, linearity, displacement range, and resolution are functions of the relative positioning of its transmitting and receiving fibers. In this paper, sensor architectures with various combinations of these performance metrics are discussed. A sensor capable of micrometer resolution is reported, and it is concluded that this work could lead to an improved methodology for sensor design.

Moro, Erik Allan [Los Alamos National Laboratory; Todd, Michael D [Los Alamos National Laboratory; Puckett, Santhony D [Los Alamos National Laboratory

2010-09-30T23:59:59.000Z

90

Very compact, high-stability electrostatic actuator featuring contact-free self-limiting displacement  

DOE Patents (OSTI)

A compact electrostatic actuator is disclosed for microelectromechanical (MEM) applications. The actuator utilizes stationary and moveable electrodes, with the stationary electrodes being formed on a substrate and the moveable electrodes being supported above the substrate on a frame. The frame provides a rigid structure which allows the electrostatic actuator to be operated at high voltages (up to 190 Volts) to provide a relatively large actuation force compared to conventional electrostatic comb actuators which are much larger in size. For operation at its maximum displacement, the electrostatic actuator is relatively insensitive to the exact value of the applied voltage and provides a self-limiting displacement.

Rodgers, M. Steven (Albuquerque, NM); Miller, Samuel L. (Albuquerque, NM)

2003-01-01T23:59:59.000Z

91

Three-dimensional midpoint displacement algorithm for the generation of fractal porous media  

Science Conference Proceedings (OSTI)

We propose a novel method of generating fractal three-dimensional porous media geometry. The method is an extension of the two-dimensional midpoint displacement method, used to generate realistic looking terrain for graphics applications, to a third ... Keywords: Fractal, Periodic boundary conditions, Porous media generation

Jonathan Jilesen; Jim Kuo; Fue-Sang Lien

2012-09-01T23:59:59.000Z

92

Stopper-Bearing System A Solution to Displacement Control of Bridge Decks  

E-Print Network (OSTI)

Bridges play an important role in society, especially during the post-earthquake period that enables emergency vehicles and traffic for safe egress and ingress to minimize the loss of property and life. However, some past earthquakes have resulted in large horizontal displacements on the superstructure that have lead to unseating of bridge spans and unexpected pounding forces that damaged critical components such as bearings and anchor bolts. To this end, a new bearing system, referred to as a stopperbearing system (SBS), is proposed as one solution to address the vulnerability of bridge bearings and other components. The horizontal displacement of a deck can be limited to a desired range using the SBS. The nonlinear load-deformation behavior of the SBS is obtained from ABAQUS and used to define the SBS within reinforced concrete analytical bridge models developed in SAP2000, which are subjected to the 1999 Chi- Chi, Taiwan earthquake ground motion (1.01g - E-W component and 0.43g - N-S component). The results from the nonlinear time history analyses show that the SBS is effective in limiting bridge deck displacements and pounding effects. Preliminary analytical modeling of the SBS shows promise as a solution to displacement control of bridge decks for overall enhancement of bridge performance during seismic events.

Tsai, Yi-Te

2009-08-01T23:59:59.000Z

93

Forced oil-water displacement and spontaneous countercurrent imbibition are the crucial mechanisms of secondary oil  

E-Print Network (OSTI)

Abstract Forced oil-water displacement and spontaneous countercurrent imbibition are the crucial mechanisms of secondary oil recovery. Classical mathematical models of both these unsteady flows are based on the fundamental assumption of local phase equilibrium. Thus, the water and oil flows are locally redistributed

Patzek, Tadeusz W.

94

Behaviour of oil ganglia displaced by a surfactant solution in a porous medium  

E-Print Network (OSTI)

L-97 Behaviour of oil ganglia displaced by a surfactant solution in a porous medium J. C. Moulu'importance relative des forces de viscosité et des forces capillaires. Abstract. 2014 The velocity of oil ganglia residual oil phase by water injection in a porous medium [1, 2]. These studies have demonstrated

Paris-Sud XI, Université de

95

Vertical displacement of the storage ring floor due to building distortion in the Photon Factory  

Science Conference Proceedings (OSTI)

The Light Source Building of the Photon Factory was found to distort so much as to induce the displacement of magnets in the storage ring. This resulted in drifting of the beam orbit. It was considered that the building was distorted by the variations of thermal stress

Tomotaro Katsura; Yutaka Fujita

1991-01-01T23:59:59.000Z

96

PREDICTION OF SURFACE SETTLEMENT DUE TO THE DISPLACEMENT OF SOFT ZONES  

Science Conference Proceedings (OSTI)

In areas composed of coastal plain sediments, soft zones subjected to partial overburden may be present in the subsurface. During or after a seismic event, these soft zones may be compressed. The resulting displacement due to the deformation of the soft zones will propagate to the ground surface and cause the surface to settle. This paper presents a method to predict the settlement at the surface due to the propagation of the displacement from the soft zones. This method is performed by discretizing the soft zones into multiple clusters of finite sub-areas or subspaces. Settlement profile at the ground surface due to the displacement of each sub-area or subspace is computed assuming the shape is a normal distribution function. Settlement due to the displacement of the soft zones can then be approximated by adding the settlements computed for all the sub-areas or subspaces. This method provides a simple and useful tool for the prediction of the settlement profile and the results are consistent with those obtained from the finite difference analysis.

Li, W

2008-03-03T23:59:59.000Z

97

Displacement of Different Gases on the Mechanism of Methane and its Experimental Research  

Science Conference Proceedings (OSTI)

The paper is research how to improve the exploitation of coal bed methane rate, we discussed the flooding in the coal bed methane gas, CO2 gas with N2 gas and the effect of displacement, respectively, and summed up: With the injection of different gases ... Keywords: CBM, N2 and CO2 gas, Flow characteristics, Mechanism

E. Dong; Long Guan

2012-05-01T23:59:59.000Z

98

Determination of the displacement energy of O, Si and Zr under electron beam irradiation  

Science Conference Proceedings (OSTI)

The response of nanocrystalline, stabilizer-free cubic zirconia thin films on a Si substrate to electron beam irradiation with energies of 4, 110 and 200 keV and fluences up to {approx}1.5 x 10{sup 22} e m{sup -2} has been studied to determine the displacement energies. The 110 and 200 keV irradiations were performed in situ using a transmission electron microscope; the 4 keV irradiations were performed ex situ using an electron gun. In all three irradiations, no structural modification of the zirconia was observed, despite the high fluxes and fluences. However the Si substrate on which the zirconia film was deposited was amorphized under the 200 keV electron irradiation. Examination of the electron-solid interactions reveals that the kinetic energy transfer from the 200 keV electrons to the silicon lattice is sufficient to cause atomic displacements, resulting in amorphization. The kinetic energy transfer from the 200 keV electrons to the oxygen sub-lattice of the zirconia may be sufficient to induce defect production, however, no evidence of defect production was observed. The displacement cross-section value of Zr was found to be {approx}400 times greater than that of O indicating that the O atoms are effectively screened from the electrons by the Zr atoms, and, therefore, the displacement of O is inefficient.

Edmondson, Philip D [ORNL; Weber, William J [ORNL; Namavar, Fereydoon [University of Nebraska Medical Center; Zhang, Yanwen [ORNL

2012-01-01T23:59:59.000Z

99

Displacing entanglement back and forth between the micro and macro domains  

E-Print Network (OSTI)

Quantum theory is often presented as the theory describing the microscopic world, and admittedly, it has done this extremely well for decades. Nonetheless, the question of whether it applies at all scales and in particular at human scales remains open, despite considerable experimental effort. Here, we report on the displacement of quantum entanglement into the domain where it involves two macroscopically distinct states, i.e. two states characterised by a large enough number of photons to be seen, at least in principle, with our eyes and that could be distinguished using mere linear - coarse-grained - detectors with a high probability. Specifically, we start by the generation of entanglement between two spatially separated optical modes at the single photon level and subsequently displace one of these modes up to almost a thousand photons. To reliably check whether entanglement is preserved, the mode is re-displaced back to the single photon level and a well established entanglement measure, based on single photon detection, is performed. The ability to displace an entangled state from the micro to the macro domain and back again provides a fascinating tool to probe fundamental questions about quantum theory and holds potential for more applied problems such as quantum sensing.

Natalia Bruno; Anthony Martin; Pavel Sekatski; Nicolas Sangouard; Rob Thew; Nicolas Gisin

2012-12-15T23:59:59.000Z

100

ASSESSMENT OF THE RELEVANCE OF DISPLACEMENT BASED DESIGN METHODS/CRITERIA TO NUCLEAR PLANT STRUCTURES.  

Science Conference Proceedings (OSTI)

Revisions to the USNRC Regulatory Guides and Standard Review Plan Sections devoted to earthquake engineering practice are currently in process. The intent is to reflect changes in engineering practice that have evolved in the twenty years that have passed since those criteria were originally published. Additionally, field observations of the effects of the Northridge (1994) and Kobe (1995) earthquakes have inspired some reassessment in the technical community about certain aspects of design practice. In particular, questions have arisen about the effectiveness of basing earthquake resistant designs on resistance to seismic forces and, then evaluating tolerability of the expected displacements. Therefore, a research effort was undertaken to examine the implications for NRC's seismic practice of the move, in the earthquake engineering community, toward using expected displacement rather than force (or stress) as the basis for assessing design adequacy. The results of the NRC sponsored research on this subject are reported in this paper. A slow trend toward the utilization of displacement based methods for design was noted. However, there is a more rapid trend toward the use of displacement based methods for seismic evaluation of existing facilities. A document known as FEMA 273, has been developed and is being used as the basis for the design of modifications to enhance the seismic capability of existing non-nuclear facilities. The research concluded that displacement based methods, such as given in FEMA 273, may be useful for seismic margin studies of existing nuclear power stations. They are unlikely to be useful for the basic design of new stations since nuclear power stations are designed to remain elastic during a seismic event. They could, however, be useful for estimating the margins associated with that design.

HOFMAYER,C.; MILLER,C.; WANG,Y.; COSTELLO,J.

2001-08-12T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

DOE Hydrogen and Fuel Cells Program Record 5003: Carbon Displacement Using Net-Zero Carbon Sources  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Date: January 4, 2006 3 Date: January 4, 2006 Title: Carbon Displacement Using Net-Zero Carbon Sources Originator: Elvin Yuzugullu Approved by: JoAnn Milliken Date: April 4, 2006 Item: "... if 175 billion kWh of grid electricity (10% of the growth of the electric generation market in 2025) is replaced by fuel cells operating on hydrogen at 50% LHV efficiency, about 10.5 million tons of hydrogen would be needed. If this hydrogen were made from a non-carbon (e.g. nuclear) or net-zero carbon (e.g. biomass, coal with carbon sequestration) source, then it could potentially displace about 27.5 million tons of carbon." Calculations/References: Analysis by TIAX for DOE, August 24, 2005: * "10.5 million tons of hydrogen" Required H 2 = 175 billion kWhe

102

Apparent spatial blurring and displacement of a point optical source due to cloud scattering  

Science Conference Proceedings (OSTI)

A Monte Carlo algorithm is used to determine the apparent spatial blurring of a terrestrial 1.07 micron optical point source due to cloud scattering as seen from space. The virtual image of a point source over a virtual source plane area 22.4 x 22.4 square kilometers arising from cloud scattering was determined for stratus clouds (NASA cloud number 5) and altostratus clouds optical source arises from photon scattering by cloud water droplets. Displacement of the virtual source is due to the apparent illumination of the cloud top region directly about the actual source which when viewed at a nonzero look angle gives a projected displacement of the apparent source relative to the actual source. These features are quantified by an analysis of the Monte Carlo computational results.

Brower, K.L.

1997-09-01T23:59:59.000Z

103

Performance of Quantum Key Distribution Protocol with Dual-Rail Displaced Photon States  

E-Print Network (OSTI)

We propose a scheme for quantum key distribution (QKD) protocol with dual-rail displaced photon states. Displaced single photon states carry bit value of code which may be extracted while coherent states carry nothing and they only provide inconclusive outcome. Developed QKD protocol works with experimental attendant noise to observe presence of malicious Eve. Pulses with large amplitudes unlike conventional QKD relying on faint laser pulses are used that may approximate it to standard telecommunication communication and may show resistance to eavesdropping even in settings with high attenuation. Information leakage to the eavesdropper is determined from comparison of output distribution of the outcomes with ideal one that is defined by two additional inaccessible to nobody, saving for who sends the pulses, parameters. Robustness to some possible eavesdropping attacks is shown.

Sergey A. Podoshvedov

2009-05-13T23:59:59.000Z

104

Dynamics of quasi-spherical Z-pinch implosions with mass redistribution and displacement modification  

Science Conference Proceedings (OSTI)

Implosions of (quasi-)spherical loads with mass redistribution and displacement modification are investigated numerically. Both methods can theoretically counterbalance the nonuniformity of magnetic pressure along the load surface and realize quasi-spherical Z-pinch implosions. Mass redistribution is feasible for spherical loads with large radius and weight, while the displacement modification is more suitable for light loads, such as those composed of wire arrays. Simulation results suggest that, for mass redistributed spherical loads, wall instabilities induced by polar mass flows will deform the imploding shell. For prolate spherical loads, in which the wall instability cannot develop, the kinetic energy distribution is disturbed at high latitude. These passive behaviors and their possible mitigation methods, such as reshaping the electrode, are investigated numerically in this paper.

Zhang Yang [Institute of Applied Physics and Computational Mathematics, P. O. Box 8009-09, Beijing 100094 (China); Institute of Nuclear Physics and Chemistry, P. O. Box 919-212, Mianyang 621900 (China); Ding Ning; Sun Shunkai; Xue Chuang; Ning Cheng; Xiao Delong; Huang Jun [Institute of Applied Physics and Computational Mathematics, P. O. Box 8009-09, Beijing 100094 (China); Li Zhenghong [Institute of Nuclear Physics and Chemistry, P. O. Box 919-212, Mianyang 621900 (China)

2012-12-15T23:59:59.000Z

105

Hybrid staging of a Lysholm positive displacement engine with two Westinghouse two stage impulse Curtis turbines  

SciTech Connect

The University of California at Berkeley has tested and modeled satisfactorly a hybrid staged Lysholm engine (positive displacement) with a two stage Curtis wheel turbine. The system operates in a stable manner over its operating range (0/1-3/1 water ratio, 120 psia input). Proposals are made for controlling interstage pressure with a partial admission turbine and volume expansion to control mass flow and pressure ratio for the Lysholm engine.

Parker, D.A.

1982-06-01T23:59:59.000Z

106

MIGRANTS IN FLIGHT: CONFLICT-INDUCED INTERNAL DISPLACEMENT OF NEPALIS IN NORTHEAST INDIA  

E-Print Network (OSTI)

of the sturdy and industrious Nepalis entered Bhutan, on the invitation of the Raja, with British encouragement to clear the Duars or the foothills of Southern Bhutan, while others came in search of cultivable land. In 1909 a British officer noted with some... worry in a backward region of India, as well as the seemingly deliberate attempts of the ethnic movements to loosely define the term 'foreigner'. They have suffered large-scale evictions and internal displacement. This paper looks at the conflict...

Nath, Lopita

2005-01-01T23:59:59.000Z

107

Optimization of displacement-measuring quadrature interferometers considering the real properties of optical components  

SciTech Connect

We present the influence of alignment and the real properties of optical components on the performance of a two-detector homodyne displacement-measuring quadrature laser interferometer. An experimental method, based on the optimization of visibility and sensitivity, was established and theoretically described to assess the performance and stability of the interferometer. We show that the optimal performance of such interferometers is achieved with the iterative alignment procedure described.

Pozar, Tomaz; Gregorcic, Peter; Mozina, Janez

2011-03-20T23:59:59.000Z

108

Triggers for displaced decays of long-lived neutral particles in the ATLAS detector  

E-Print Network (OSTI)

A set of three dedicated triggers designed to detect long-lived neutral particles decaying throughout the ATLAS detector to a pair of hadronic jets is described. The efficiencies of the triggers for selecting displaced decays as a function of the decay position are presented for simulated events. The effect of pile-up interactions on the trigger efficiencies and the dependence of the trigger rate on instantaneous luminosity during the 2012 data-taking period at the LHC are discussed.

ATLAS Collaboration

2013-05-10T23:59:59.000Z

109

The Sun's displacement from the galactic plane from spectroscopic parallaxes of 2400 OB stars  

E-Print Network (OSTI)

The Sun's vertical displacement from the galactic plane is determined model-independently from 3457 spectroscopic-parallax distance estimates for 2397 OB stars within 1200 pc of the Sun. The result, 19.5 +/- 2.2 pc, agrees well with other recent determinations. The distribution of stellar z-values with galactic longitude shows a slight sinusoidal dependence with an amplitude of about 26 pc.

B. Cameron Reed

2005-07-28T23:59:59.000Z

110

Experimental Study of the Floor Radiant Cooling System Combined with Displacement Ventilation  

E-Print Network (OSTI)

As a comfortable and energy-efficient air conditioning system, the application of floor radiant heating system is used increasingly greatly in the north of China. As a result, the feasibility of floor radiant cooling has gained more attention. To examine the thermodynamic performance of the floor radiant cooling system, we measured the operational conditions including the minimum floor surface temperature, the cooling capacity, and the indoor temperature field distribution under different outdoor temperatures in Beijing. Because the ground temperature changes with the mean temperature of the supplied and returned water and room temperature, the mean temperature of the supplied and retuned water was obtained. Finally, we analyzed the phenomenon of dewing and developed measures for preventing it. The dry air layer near the floor formed by a displacement ventilation system can effectively prevent dews on the surface of the floor in the wet and hot days in summer. In addition, for the sake of the displacement ventilation system, the heat transfer effect between floor and space is enhanced. Our analysis pointed out that floor radiant cooling system combined with displacement ventilation ensures good comfort and energy efficiency.

Ren, Y.; Li, D.; Zhang, Y.

2006-01-01T23:59:59.000Z

111

TRIO experiment  

DOE Green Energy (OSTI)

The TRIO experiment is a test of in-situ tritium recovery and heat transfer performance of a miniaturized solid breeder blanket assembly. The assembly (capsule) was monitored for temperature and neutron flux profiles during irradiation and a sweep gas flowed through the capsule to an anaytical train wherein the amounts of tritium in its various chemical forms were determined. The capsule was designed to operate at different temperatures and sweep gas conditions. At the end of the experiment the amount of tritium retained in the solid was at a concentration of less than 0.1 wppM. More than 99.9% of tritium generated during the experiment was successfully recovered. The results of the experiment showed that the tritium inventories at the beginning and at the end of the experiment follow a relationship which appears to be characteristic of intragranular diffusion.

Clemmer, R.G.; Finn, P.A.; Malecha, R.F.; Misra, B.; Billone, M.C.; Bowers, D.L.; Fischer, A.K.; Greenwood, L.R.; Mattas, R.F.; Tam, S.W.

1984-09-01T23:59:59.000Z

112

Hydromechanical modeling of pulse tests that measure both fluidpressure and fracture-normal displacement of the Coaraze Laboratory site,France  

Science Conference Proceedings (OSTI)

In situ fracture mechanical deformation and fluid flowinteractions are investigated through a series of hydraulic pulseinjection tests, using specialized borehole equipment that cansimultaneously measure fluid pressure and fracture displacements. Thetests were conducted in two horizontal boreholes spaced one meter apartvertically and intersecting a near-vertical highly permeable faultlocated within a shallow fractured carbonate rock. The field data wereevaluated by conducting a series of coupled hydromechanical numericalanalyses, using both distinct-element and finite-element modelingtechniques and both two- and three-dimensional model representations thatcan incorporate various complexities in fracture network geometry. Oneunique feature of these pulse injection experiments is that the entiretest cycle, both the initial pressure increase and subsequent pressurefall-off, is carefully monitored and used for the evaluation of the insitu hydromechanical behavior. Field test data are evaluated by plottingfracture normal displacement as a function of fluid pressure, measured atthe same borehole. The resulting normal displacement-versus-pressurecurves show a characteristic loop, in which the paths for loading(pressure increase) and unloading (pressure decrease) are different. Bymatching this characteristic loop behavior, the fracture normal stiffnessand an equivalent stiffness (Young's modulus) of the surrounding rockmass can be back-calculated. Evaluation of the field tests by couplednumerical hydromechanical modeling shows that initial fracture hydraulicaperture and normal stiffness vary by a factor of 2 to 3 for the twomonitoring points within the same fracture plane. Moreover, the analysesshow that hydraulic aperture and the normal stiffness of the pulse-testedfracture, the stiffness of surrounding rock matrix, and the propertiesand geometry of the surrounding fracture network significantly affectcoupled hydromechanical responses during the pulse injection test. Morespecifically, the pressure-increase path of the normaldisplacement-versus-pressure curve is highly dependent on thehydromechanical parameters of the tested fracture and the stiffness ofthe matrix near the injection point, whereas the pressure-decrease pathis highly influenced by mechanical processes within a larger portion ofthe surrounding fractured rock.

Cappa, F.; Guglielmi, Y.; Rutqvist, J.; Tsang, C-F.; Thoraval, A.

2006-04-22T23:59:59.000Z

113

Approved Experiments  

NLE Websites -- All DOE Office Websites (Extended Search)

Cycle 31OCT97 Exp Spokesperson Experiment Title Days 666 Clark Magnetic Rotation in 104Sn 5 667 Janssens Unsafe COULEX of the 240Pu Nucleus 3 670 Smith Exotic Structures in very...

114

Residual Seminal Vesicle Displacement in Marker-Based Image-Guided Radiotherapy for Prostate Cancer and the Impact on Margin Design  

Science Conference Proceedings (OSTI)

Purpose: The objectives of this study were to quantify residual interfraction displacement of seminal vesicles (SV) and investigate the efficacy of rotation correction on SV displacement in marker-based prostate image-guided radiotherapy (IGRT). We also determined the effect of marker registration on the measured SV displacement and its impact on margin design. Methods and Materials: SV displacement was determined relative to marker registration by using 296 cone beam computed tomography scans of 13 prostate cancer patients with implanted markers. SV were individually registered in the transverse plane, based on gray-value information. The target registration error (TRE) for the SV due to marker registration inaccuracies was estimated. Correlations between prostate gland rotations and SV displacement and between individual SV displacements were determined. Results: The SV registration success rate was 99%. Displacement amounts of both SVs were comparable. Systematic and random residual SV displacements were 1.6 mm and 2.0 mm in the left-right direction, respectively, and 2.8 mm and 3.1 mm in the anteroposterior (AP) direction, respectively. Rotation correction did not reduce residual SV displacement. Prostate gland rotation around the left-right axis correlated with SV AP displacement (R{sup 2} = 42%); a correlation existed between both SVs for AP displacement (R{sup 2} = 62%); considerable correlation existed between random errors of SV displacement and TRE (R{sup 2} = 34%). Conclusions: Considerable residual SV displacement exists in marker-based IGRT. Rotation correction barely reduced SV displacement, rather, a larger SV displacement was shown relative to the prostate gland that was not captured by the marker position. Marker registration error partly explains SV displacement when correcting for rotations. Correcting for rotations, therefore, is not advisable when SV are part of the target volume. Margin design for SVs should take these uncertainties into account.

Smitsmans, Monique H.P.; Bois, Josien de; Sonke, Jan-Jakob [Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam (Netherlands); Catton, Charles N. [Radiation Medicine Program, Princess Margaret Hospital, Ontario Cancer Institute, Department of Radiation Oncology, Toronto (Canada); Jaffray, David A. [Radiation Medicine Program, Princess Margaret Hospital, Ontario Cancer Institute, Department of Radiation Physics, Toronto (Canada); Lebesque, Joos V. [Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam (Netherlands); Herk, Marcel van, E-mail: portal@nki.n [Department of Radiation Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam (Netherlands)

2011-06-01T23:59:59.000Z

115

A New Scheme for Effective Roughness Length and Effective Zero-Plane Displacement in Land Surface Models  

Science Conference Proceedings (OSTI)

Based on the similarity theory of the atmospheric surface layer and the flux conservation and mass conservation laws, a new scheme for determining the effective roughness length (ERL) and the effective zero-plane displacement (EZPD) for a ...

Zhong Zhong; Wei Lu; Shuai Song; Yaocun Zhang

2011-12-01T23:59:59.000Z

116

Energy and first costs analysis of displacement and mixing ventilation systems for U.S. buildings and climates  

E-Print Network (OSTI)

In the past two decades, displacement ventilation has been increasingly used in Scandinavia and Western Europe to improve indoor air quality and to save energy. By using a detailed computer simulation method, this study ...

Hu, ShiPing, 1970-

1999-01-01T23:59:59.000Z

117

Water Vapor Structure Displacements from Cloud-Free Meteosat Scenes and Their Interpretation for the Wind Field  

Science Conference Proceedings (OSTI)

The evaluation of water vapor (WV) images taken by satellite-borne radiometers has become an essential source of data in modern meteorology. The analysis of structure displacements within sections of WV images is an effective way to get ...

G. Bche; H. Karbstein; A. Kummer; H. Fischer

2006-04-01T23:59:59.000Z

118

Wettability and Oil Recovery by Imbibition and Viscous Displacement from Fractured and Heterogeneous Carbonates  

Science Conference Proceedings (OSTI)

About one-half of U.S. oil reserves are held in carbonate formations. The remaining oil in carbonate reservoirs is regarded as the major domestic target for improved oil recovery. Carbonate reservoirs are often fractured and have great complexity even at the core scale. Formation evaluation and prediction is often subject to great uncertainty. This study addresses quantification of crude oil/brine/rock interactions and the impact of reservoir heterogeneity on oil recovery by spontaneous imbibition and viscous displacement from pore to field scale. Wettability-alteration characteristics of crude oils were measured at calcite and dolomite surfaces and related to the properties of the crude oils through asphaltene content, acid and base numbers, and refractive index. Oil recovery was investigated for a selection of limestones and dolomites that cover over three orders of magnitude in permeability and a factor of four variation in porosity. Wettability control was achieved by adsorption from crude oils obtained from producing carbonate reservoirs. The induced wettability states were compared with those measured for reservoir cores. The prepared cores were used to investigate oil recovery by spontaneous imbibition and viscous displacement. The results of imbibition tests were used in wettability characterization and to develop mass transfer functions for application in reservoir simulation of fractured carbonates. Studies of viscous displacement in carbonates focused on the unexpected but repeatedly observed sensitivity of oil recovery to injection rate. The main variables were pore structure, mobility ratio, and wettability. The potential for improved oil recovery from rate-sensitive carbonate reservoirs by increased injection pressure, increased injectivity, decreased well spacing or reduction of interfacial tension was evaluated.

Norman R. Morrow; Jill Buckley

2006-04-01T23:59:59.000Z

119

Update of distillers grains displacement ratios for corn ethanol life-cycle analysis.  

DOE Green Energy (OSTI)

Production of corn-based ethanol (either by wet milling or by dry milling) yields the following coproducts: distillers grains with solubles (DGS), corn gluten meal (CGM), corn gluten feed (CGF), and corn oil. Of these coproducts, all except corn oil can replace conventional animal feeds, such as corn, soybean meal, and urea. Displacement ratios of corn-ethanol coproducts including DGS, CGM, and CGF were last updated in 1998 at a workshop at Argonne National Laboratory on the basis of input from a group of experts on animal feeds, including Prof. Klopfenstein (University of Nebraska, Lincoln), Prof. Berger (University of Illinois, Urbana-Champaign), Mr. Madson (Rapheal Katzen International Associates, Inc.), and Prof. Trenkle (Iowa State University) (Wang 1999). Table 1 presents current dry milling coproduct displacement ratios being used in the GREET model. The current effort focuses on updating displacement ratios of dry milling corn-ethanol coproducts used in the animal feed industry. Because of the increased availability and use of these coproducts as animal feeds, more information is available on how these coproducts replace conventional animal feeds. To glean this information, it is also important to understand how industry selects feed. Because of the wide variety of available feeds, animal nutritionists use commercial software (such as Brill Formulation{trademark}) for feed formulation. The software recommends feed for the animal on the basis of the nutritional characteristics, availability, and price of various animal feeds, as well as on the nutritional requirements of the animal (Corn Refiners Association 2006). Therefore, feed formulation considers both the economic and the nutritional characteristics of feed products.

Arora, S.; Wu, M.; Wang, M.; Energy Systems

2011-02-01T23:59:59.000Z

120

Modeling and Validation of Performance Limitations for the Optimal Design of Interferometric and Intensity-Modulated Fiber Optic Displacement Sensors  

Science Conference Proceedings (OSTI)

Optical fiber sensors offer advantages over traditional electromechanical sensors, making them particularly well-suited for certain measurement applications. Generally speaking, optical fiber sensors respond to a desired measurand through modulation of an optical signal's intensity, phase, or wavelength. Practically, non-contacting fiber optic displacement sensors are limited to intensity-modulated and interferometric (or phase-modulated) methodologies. Intensity-modulated fiber optic displacement sensors relate target displacement to a power measurement. The simplest intensity-modulated sensor architectures are not robust to environmental and hardware fluctuations, since such variability may cause changes in the measured power level that falsely indicate target displacement. Differential intensity-modulated sensors have been implemented, offering robustness to such intensity fluctuations, and the speed of these sensors is limited only by the combined speed of the photodetection hardware and the data acquisition system (kHz-MHz). The primary disadvantages of intensity-modulated sensing are the relatively low accuracy (?m-mm for low-power sensors) and the lack of robustness, which consequently must be designed, often with great difficulty, into the sensor's architecture. White light interferometric displacement sensors, on the other hand, offer increased accuracy and robustness. Unlike their monochromatic-interferometer counterparts, white light interferometric sensors offer absolute, unambiguous displacement measurements over large displacement ranges (cm for low-power, 5 mW, sources), necessitating no initial calibration, and requiring no environmental or feedback control. The primary disadvantage of white light interferometric displacement sensors is that their utility in dynamic testing scenarios is limited, both by hardware bandwidth and by their inherent high-sensitivity to Doppler-effects. The decision of whether to use either an intensity-modulated interferometric sensor depends on an appropriate performance function (e.g., desired displacement range, accuracy, robustness, etc.). In this dissertation, the performance limitations of a bundled differential intensity-modulated displacement sensor are analyzed, where the bundling configuration has been designed to optimize performance. The performance limitations of a white light Fabry-Perot displacement sensor are also analyzed. Both these sensors are non-contacting, but they have access to different regions of the performance-space. Further, both these sensors have different degrees of sensitivity to experimental uncertainty. Made in conjunction with careful analysis, the decision of which sensor to deploy need not be an uninformed one.

Moro, Erik A. [Los Alamos National Laboratory

2012-06-07T23:59:59.000Z

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121

Hydraulophone design considerations: absement, displacement, and velocity-sensitive music keyboard in which each key is a water jet  

Science Conference Proceedings (OSTI)

We present a musical keyboard that is not only velocity-sensitive, but in fact responds to absement (presement), displacement (placement), velocity, acceleration, jerk, jounce, etc. (i.e. to all the derivatives, as well as the integral, of displacement).Moreover, ... Keywords: FUNtain, direct user interface, duringtouch, fluid-user-interface, haptic surface, harmelodica, harmelotron (harmellotron), hydraulic-action, hydraulophone, pneumatophone, tangible user interface, tracker-action, underwater musical instrument, water-based immersive multimedia

Steve Mann; Ryan Janzen; Mark Post

2006-10-01T23:59:59.000Z

122

Development of a digital control unit to displace diesel fuel with natural gas  

DOE Green Energy (OSTI)

Full Circle Engineering (FCE), supported by the Colorado School of Mines (CSM), proposed a Small Business CRADA with Allied Signal Federal Manufacturing & Technologies/Kansas City (FM&T/KC) for the development of a fumigation digital control unit (DCU) that would allow the displacement of diesel fuel with natural gas. Nationwide, diesel trucks and buses consumed over 21 billion gallons of fuel in 1992. The development of systems that allow the use of alternative fuels, natural gas in particular, for transportation would significantly reduce emissions and pollutants. It would also help implement DOE`s mandate for energy security (use of domestic fuels) required by the Energy Policy Act (EPACT).

Talbott, A.D. [AlliedSignal FM& T, Kansas City, MO (United States)]|[Full Circle Engineering, Northglenn, CO (United States)

1997-03-01T23:59:59.000Z

123

Buoyancy effects on upward brine displacement caused by CO2 injection  

SciTech Connect

Upward displacement of brine from deep reservoirs driven by pressure increases resulting from CO{sub 2} injection for geologic carbon sequestration may occur through improperly sealed abandoned wells, through permeable faults, or through permeable channels between pinch-outs of shale formations. The concern about upward brine flow is that, upon intrusion into aquifers containing groundwater resources, the brine may degrade groundwater. Because both salinity and temperature increase with depth in sedimentary basins, upward displacement of brine involves lifting fluid that is saline but also warm into shallower regions that contain fresher, cooler water. We have carried out dynamic simulations using TOUGH2/EOS7 of upward displacement of warm, salty water into cooler, fresher aquifers in a highly idealized two-dimensional model consisting of a vertical conduit (representing a well or permeable fault) connecting a deep and a shallow reservoir. Our simulations show that for small pressure increases and/or high-salinity-gradient cases, brine is pushed up the conduit to a new static steady-state equilibrium. On the other hand, if the pressure rise is large enough that brine is pushed up the conduit and into the overlying upper aquifer, flow may be sustained if the dense brine is allowed to spread laterally. In this scenario, dense brine only contacts the lower-most region of the upper aquifer. In a hypothetical case in which strong cooling of the dense brine occurs in the upper reservoir, the brine becomes sufficiently dense that it flows back down into the deeper reservoir from where it came. The brine then heats again in the lower aquifer and moves back up the conduit to repeat the cycle. Parameter studies delineate steady-state (static) and oscillatory solutions and reveal the character and period of oscillatory solutions. Such oscillatory solutions are mostly a curiosity rather than an expected natural phenomenon because in nature the geothermal gradient prevents the cooling in the upper aquifer that occurs in the model. The expected effect of upward brine displacement is either establishment of a new hydrostatic equilibrium or sustained upward flux into the bottom-most region of the upper aquifer.

Oldenburg, C.M.; Rinaldi, A.

2010-01-15T23:59:59.000Z

124

Performance of a quantum key distribution protocol with dual-rail displaced photon states  

Science Conference Proceedings (OSTI)

We propose a scheme for a quantum key distribution (QKD) protocol with dual-rail displaced photon states. Displaced single-photon states with different amplitudes carry bit values of code that may be extracted, while coherent states carry nothing and only provide an inconclusive outcome. A real resource of single photons is used, involving imperfections associated with experimental technique that result in a photon state with an admixture of the vacuum state. The protocol is robust against the loss of a single photon and the inefficiency of the detectors. Pulses with large amplitudes, unlike the conventional QKD relying on faint laser pulses, are used that may approximate it to standard telecommunication and may show resistance to eaves-dropping even in settings with high attenuation. Information leakage to the eavesdropper is determined from comparison of the output distributions of the outcomes with ideal ones that are defined by two additional parameters accessible to only those send the pulses. Robustness to some possible eavesdropping attacks is shown.

Podoshvedov, S. A., E-mail: sap@kias.re.k [Korea Institute for Advanced Study, School of Computational Sciences (Korea, Republic of)

2010-04-15T23:59:59.000Z

125

SANE experiment  

SciTech Connect

The Spin Asymmetries of the Nucleon Experiment (SANE) is a measurement of parallel and near-perpendicular double spin asymmetries in an inclusive electron scattering. The main goal of the experiment was to measure A{sub {parallel}} and A{sub 80} and extract the spin asymmetries of the proton A{sub 1}{sup p}, A{sub 2}{sup p} and spin structure functions g{sub 1}{sup p} and g{sub 2}{sup p}. Using the Thomas Jefferson National Accelerator Facility's polarized electron beam and the University of Virginia's polarized frozen ammonia ({sup 14}NH{sub 3}) target in Hall C, the experiment ran in 2009, collecting data in a Q{sup 2} region from 2.5 to 6.5 GeV{sup 2} and between Bjorken x of 0.3 to 0.8. Particle detection was accomplished using the Big Electron Telescope Array (BETA), a novel non-magnetic detector. This talk will address the progress of the analysis designed to extract the proton spin asymmetries and structure functions. Preliminary results will be presented.

H. Baghdasaryan, SANE Collaboration

2012-04-01T23:59:59.000Z

126

Improving Petroleum Displacement Potential of PHEVs Using Enhanced Charging Scenarios: Preprint  

NLE Websites -- All DOE Office Websites (Extended Search)

5730 5730 May 2009 Improving Petroleum Displacement Potential of PHEVs Using Enhanced Charging Scenarios Preprint T. Markel, K. Smith, and A.A. Pesaran Presented at EVS-24 International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium Stavanger, Norway May 13-16, 2009 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (ASE), a contractor of the US Government under Contract No. DE-AC36-08-GO28308. Accordingly, the US Government and ASE retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

127

Residential wood burning: Energy modeling and conventional fuel displacement in a national sample  

SciTech Connect

This research studied the natural, built, and behavioral factors predictive of energy consumption for residential space heating with wood or conventional fuels. This study was a secondary analysis of survey data from a nationwide representative sample of 5,682 households collected DOE in the 1984-1985 REC survey. Included were: weather, census division and utility data, interviewer-supplied dwelling measurements and respondent-reported energy-related family behaviors. Linear-regression procedures were used to develop a model that identified key determinants accounting for the variability in wood consumption. A nonlinear-regression model was employed to estimate the amount of conventional fuels used for space heating. The model was also used to estimate the amount of conventional fuels being displaced by wood-heating systems. There was a significant (p {le} .05) linear relationship between the dependent variable, square root of cords burned, various independent variables.

Warsco, K.S.

1988-01-01T23:59:59.000Z

128

Analysis of vibration and pressure pulsation in positive displacement drilling motors  

Science Conference Proceedings (OSTI)

Three, Moineau principle, positive displacement (drilling) motors were tested on a dynamometer using water, air/mist, and foam. In conjunction with a traditional motor performance test, data were collected at 5000 samples per second using an adapted seismic data acquisition system. Shaft speed, torque, pressure, and three-axis vibration data were processed using Seismic Analysis Code (SAC) to obtain energy density spectrums (EDSs). Cascade plots were generated by plotting the EDSs against shaft speed. The cascade plots revealed that pressure pulses and motor vibrations are closely related to the eccentric rotation of the rotor in the power section. Excessive no-load vibrations were not observed in the small motors and test apparatus used; increasing torque usually decreases the amplitude of vibrations observed. Motor vibration amplitudes were as a rule not increased when compressible fluids were substituted for water.

Hamlin, D.B.; Dreesen, D.S.

1998-12-31T23:59:59.000Z

129

Clip gage attachment for frictionless measurement of displacement during high-temperature mechanical testing  

DOE Patents (OSTI)

An attachment for placement between a test specimen and a remote clip gage extensometer providing improved fracture toughness tests of materials at elevated temperature is described. Using a cylindrical tube and axial rod in new relationship, the device transfers the displacement signal of the fracture toughness test specimen directly to a clip gage extensometer located outside the high temperature furnace. Virtually frictionless operation is assured by having the test specimen center one end of the rod in one end of the tube, while the clip gage extensometer arms center the other end of the rod in the other end of the tube. By providing positive control over both ends of both rod and tube, the attachment may be operated in orientations other than vertical. 1 figure.

Alexander, D.J.

1994-01-04T23:59:59.000Z

130

Quantitative displacement measurement of a nanotube cantilever with nanometer accuracy using epifluorescence microscopy  

SciTech Connect

A method to measure the deflection of a nanotube cantilever with nanometer accuracy in an air or liquid environment is presented. We attached fluorescent dyes at the end of a nanotube to detect its deflection. The nanotube cantilever was fabricated with a multiwalled carbon nanotube that is attached to the end of an electrochemically etched tungsten tip, and it was imaged in an epifluorescence microscope system. The fluorescence intensity distribution of the fluorescent particles at the end of the nanotube was approximated with a Gaussian and fitted by least-squares method. Finally, we were able to measure the displacement of the nanotube cantilever during electrostatic actuation with positional accuracy of a few nanometers. This technique can be applied to a manipulator or a force transducer on related a few piconewton forces.

Park, Hyojun; Kwon, Soongeun; Kim, Soohyun [Department of Mechanical Engineering, School of Mechanical, Aerospace and Systems Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)

2009-05-15T23:59:59.000Z

131

Stable crack growth estimates based on effective crack length and crack-opening displacements  

SciTech Connect

A method was developed for estimating the amount of stable crack growth that has occurred in a fracture toughness specimen that were loaded into the plastic range and for which only a monotonically increasing load-displacement curve was measured. The method was applied to data from several pressure vessel steels. The resulting J vs ..delta..a values compare favorably with a resistance curve obtained by the multiple specimen heat-tinting technique for A533, Grade B, Class 1 steel. The method for estimating stable crack growth uses several existing concepts heretofore mainly used separately. These concepts include an approximate expression for J for the compact specimen proposed by Andrews, the effective crack length concept of McCabe and Landes, the UK representation of the crack profile as a pair of straight lines intersecting at a hinge point, and Well's expression, J = m sigma/sub y/delta, for relating the crack-opening displacement to the value of J. The value of the constraint factor, m, at the advancing crack tip is estimated by means of a relation between ductility and fracture toughness. When calculated with respect to the COD at the original fatigue crack tip, the constraint factor, m/sub o/, is found to have a value consistently close to 2.0 for compact and precracked Charpy specimens. The method of estimation requires no auxiliary load-deflection measurements or calculations, and so permits single specimen estimates of stable crack growth to be made without the necessity of making high precision unloading compliance measurements.

Merkle, J.G.; Hudson, C.E.

1979-01-01T23:59:59.000Z

132

Sustainable Carbon Sequestration: Increasing CO2-Storage Efficiency through a CO2-Brine Displacement Approach  

E-Print Network (OSTI)

CO2 sequestration is one of the proposed methods for reducing anthropogenic CO2 emissions to the atmosphere and therefore mitigating global climate change. Few studies on storing CO2 in an aquifer have been conducted on a regional scale. This study offers a conceptual approach to increasing the storage efficiency of CO2 injection in saline formations and investigates what an actual CO2 storage project might entail using field data for the Woodbine aquifer in East Texas. The study considers three aquifer management strategies for injecting CO2 emissions from nearby coal-fired power plants into the Woodbine aquifer. The aquifer management strategies studied are bulk CO2 injection, and two CO2-brine displacement strategies. A conceptual model performed with homogeneous and average reservoir properties reveals that bulk injection of CO2 pressurizes the aquifer, has a storage efficiency of 0.46% and can only last for 20 years without risk of fracturing the CO2 injection wells. The CO2-brine displacement strategy can continue injecting CO2 for as many as 240 years until CO2 begins to break through in the production wells. This offers 12 times greater CO2 storage efficiency than the bulk injection strategy. A full field simulation with a geological model based on existing aquifer data validates the storage capacity claims made by the conceptual model. A key feature in the geological model is the Mexia-Talco fault system that serves as a likely boundary between the saline aquifer region suitable for CO2 storage and an updip fresh water region. Simulation results show that CO2 does not leak into the fresh water region of the iv aquifer after 1000 years of monitoring if the faults have zero transmissibility, but a negligible volume of brine eventually gets through the mostly sealing fault system as pressure across the faults slowly equilibrates during the monitoring period. However, for fault transmissibilities of 0.1 and 1, both brine and CO2 leak into the fresh water aquifer in increasing amounts for both bulk injection and CO2-brine displacement strategies. In addition, brine production wells draw some fresh water into the saline aquifer if the Mexia-Talco fault system is not sealing. A CO2 storage project in the Woodbine aquifer would impact as many as 15 counties with high-pressure CO2 pipelines stretching as long as 875 km from the CO2 source to the injection site. The required percentage of power plant energy capacity was 7.43% for bulk injection, 7.9% for the external brine disposal case, and 10.2% for the internal saturated brine injection case. The estimated total cost was $0.00132$0.00146/kWh for the bulk injection, $0.00191$0.00211/kWh for the external brine disposal case, and $0.0019$0.00209/kWh for the internal saturated brine injection case.

Akinnikawe, Oyewande

2012-08-01T23:59:59.000Z

133

The continuous supercritical water gasification of spirulina and the use of a positive displacement feeding system .  

E-Print Network (OSTI)

??A factorial experiment was designed and conducted to explore the effect of three variables, concentration, temperature, and residence time, on two responses, gasification efficiency and (more)

Miller, Andrew

2012-01-01T23:59:59.000Z

134

Numerical Investigation of Fractured Reservoir Response to Injection/Extraction Using a Fully Coupled Displacement Discontinuity Method  

E-Print Network (OSTI)

In geothermal reservoirs and unconventional gas reservoirs with very low matrix permeability, fractures are the main routes of fluid flow and heat transport, so the fracture permeability change is important. In fact, reservoir development under this circumstance relies on generation and stimulation of a fracture network. This thesis presents numerical simulation of the response of a fractured rock to injection and extraction considering the role of poro-thermoelasticity and joint deformation. Fluid flow and heat transport in the fracture are treated using a finite difference method while the fracture and rock matrix deformation are determined using the displacement discontinuity method (DDM). The fractures response to fluid injection and extraction is affected both by the induced stresses as well as by the initial far-field stress. The latter is accounted for using the non-equilibrium condition, i.e., relaxing the assumption that the rock joints are in equilibrium with the in-situ stress state. The fully coupled DDM simulation has been used to carry out several case studies to model the fracture response under different injection/extractions, in-situ stresses, joint geometries and properties, for both equilibrium and non-equilibrium conditions. The following observations are made: i) Fluid injection increases the pressure causing the joint to open. For non-isothermal injection, cooling increases the fracture aperture drastically by inducing tensile stresses. Higher fracture aperture means higher conductivity. ii) In a single fracture under constant anisotropic in-situ stress (non-equilibrium condition), permanent shear slip is encountered on all fracture segments when the shear strength is overcome by shear stress in response to fluid injection. With cooling operation, the fracture segments in the vicinity of the injection point are opened due to cooling-induced tensile stress and injection pressure, and all the fracture segments experience slip. iii) Fluid pressure in fractures increases in response to compression. The fluid compressibility and joint stiffness play a role. iv) When there are injection and extraction in fractured reservoirs, the cooler fluid flows through the fracture channels from the injection point to extraction well extracting heat from the warmer reservoir matrix. As the matrix cools, the resulting thermal stress increases the fracture apertures and thus increases the fracture conductivity. v) Injection decreases the amount of effective stress due to pressure increase in fracture and matrix near a well. In contrast, extraction increases the amount of effective stress due to pressure drop in fracture and matrix.

Lee, Byungtark

2011-08-01T23:59:59.000Z

135

Integrating complementarity into the 2D displacement discontinuity boundary element method to model faults and fractures with frictional contact properties  

Science Conference Proceedings (OSTI)

We present a two-dimensional displacement discontinuity method (DDM) in combination with a complementarity solver to simulate quasi-static slip on cracks as models for faults and fractures in an otherwise homogeneous, isotropic, linear elastic material. ... Keywords: Boundary element model, Complementarity, Friction, Frictional strength

Elizabeth Ritz; Ovunc Mutlu; David D. Pollard

2012-08-01T23:59:59.000Z

136

Kinetics of Potassium Desorption in Soil using Miscible Displacement1 D. L. SPARKS, L. W. ZELAZNY, AND D. C. MARTENSZ  

E-Print Network (OSTI)

Kinetics of Potassium Desorption in Soil using Miscible Displacement1 D. L. SPARKS, L. W. ZELAZNY, and B22t horizons of two Dothan (Plinthic Pa- leudults) soils. Aluminum- and calcium- saturated samples was subsequently de- sorbed suggesting K adsorption-desorption in the Dothan soils was reversible. A linear

Sparks, Donald L.

137

System and method for generating a displacement with ultra-high accuracy using a fabry-perot interferometer  

DOE Patents (OSTI)

A system and method for generating a desired displacement of an object, i.e., a target, from a reference position with ultra-high accuracy utilizes a Fabry-Perot etalon having an expandable tube cavity for resolving, with an Iodine stabilized laser, displacements with high accuracy and for effecting (as an actuator) displacements of the target. A mechanical amplifier in the form of a micropositioning stage has a platform and a frame which are movable relative to one another, and the tube cavity of the etalon is connected between the platform and frame so that an adjustment in length of the cavity effects a corresponding, amplified movement of the frame relative to the cavity. Therefore, in order to provide a preselected magnitude of displacement of the stage frame relative to the platform, the etalon tube cavity is adjusted in length by a corresponding amount. The system and method are particularly well-suited for use when calibrating a high accuracy measuring device.

McIntyre, Timothy J. (Knoxville, TN)

1994-01-01T23:59:59.000Z

138

Analysis of Emissions Calculators for a National Center of Excellence on Displaced Emissions Reductions (CEDER)  

E-Print Network (OSTI)

In August 2004, the Environmental Protection Agency (EPA) issued guidance on quantifying the air emissions benefits from electric sector energy efficiency and renewable energy. Because there was no clear best strategy, the EPAs guidance provided a framework and the basic requirements needed to demonstrate air quality improvements or emissions reductions with adequate certainty to be incorporated into a State Implementation Plan (SIP) for achieving or maintaining National ambient Air Quality Standards (NAAQS). The Energy Systems Laboratory, with guidance from both the US EPA and the Texas Commission on Environmental Quality (TCEQ), developed the first a comprehensive engineering toolkit and database that satisfies the EPA guidance. The value of this unique tool was demonstrated in 2005 when the ESL, at the request of the TCEQ, used it to develop integrated emissions estimates for all state agencies participating in the Texas Emissions Reduction Plan (TERP). Building on this expertise, the US EPA has established a National Center of Excellence on Displaced Emissions Reductions (CEDER) at the Energy Systems Laboratory to research and gather the state-of-the-art air pollution quantification techniques for Energy Efficiency / Renewable Energy (EE/RE) projects; provide technical support and customized analysis for state and local agencies seeking to estimate the environmental benefits from clean energy policies and programs; and document how a user-friendly tool, based on e2Calc, can be used by clients to fulfill their needs to quantify emissions reductions from energy efficiency and renewable energy measures.

Im, P.; Haberl, J. S.; Culp, C.; Yazdani, B.

2008-07-18T23:59:59.000Z

139

Process for the displacement of cyanide ions from metal-cyanide complexes  

DOE Patents (OSTI)

The present invention relates to water-soluble polymers and the use of such water-soluble polymers in a process for the displacement of the cyanide ions from the metal ions within metal-cyanide complexes. The process waste streams can include metal-cyanide containing electroplating waste streams, mining leach waste streams, mineral processing waste streams, and related metal-cyanide containing waste streams. The metal ions of interest are metals that give very strong complexes with cyanide, mostly iron, nickel, and copper. The physical separation of the water-soluble polymer-metal complex from the cyanide ions can be accomplished through the use of ultrafiltration. Once the metal-cyanide complex is disrupted, the freed cyanide ions can be recovered for reuse or destroyed using available oxidative processes rendering the cyanide nonhazardous. The metal ions are released from the polymer, using dilute acid, metal ion oxidation state adjustment, or competing chelating agents, and collected and recovered or disposed of by appropriate waste management techniques. The water-soluble polymer can then be recycled. Preferred water-soluble polymers include polyethyleneimine and polyethyleneimine having a catechol or hydroxamate group.

Smith, Barbara F. (Los Alamos, NM); Robinson, Thomas W. (Los Alamos, NM)

1997-01-01T23:59:59.000Z

140

Octahedron configuration for a displacement noise-cancelling gravitational wave detector in space  

E-Print Network (OSTI)

We study for the first time a 3-dimensional octahedron constellation for a space-based gravitational wave detector, which we call OGO: the Octahedral Gravitational Observatory. With six spacecraft the constellation is able to remove laser frequency noise and acceleration disturbances from the gravitational wave signal without needing LISA-like drag-free control, thereby simplifying the payloads and placing less stringent demands on the thrusters. We generalize LISA's time-delay interferometry (TDI) to displacement-noise free interferometry (DFI) by deriving a set of generators for those combinations of the data streams which cancel laser and acceleration noise. Orbit dynamical considerations suggest a halo orbit near the Lagrangian point L1, allowing only relatively short arms. For these orbits, we derive the sensitivity curve of this detector concept, which has a peak sensitivity near 100 Hz. We compare this version of OGO to the present generation of ground-based detectors and to some future detectors. Since the sensitivity of OGO is limited mainly by shot noise, we discuss how the overall sensitivity could be improved by using advanced technologies that reduce just this noise source. We also investigate the scientific potentials of such a detector, which include observing gravitational waves from compact binary coalescences, the stochastic background and pulsars as well as the possibility to test alternative theories of gravity. Finding alternative orbits that allow longer arms for the octahedron constellation might further improve its sensitivity and science output.

Yan Wang; Stanislav Babak; Antoine Petiteau; David Keitel; Markus Otto; Simon Barke; Fumiko Kawazoe; Alexander Khalaidovski; Vitali Mller; Daniel Schtze; Holger Wittel; Karsten Danzmann; Bernard F. Schutz

2013-06-17T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Measurement of displacements in granular systems in response to penetration and compaction  

E-Print Network (OSTI)

dynamic penetration experiments, a granular materials behaviour most closely resembles that of a fluid. Hydrodynamic approximations, in which the material is treated as a fluid, have been successfully used to predict a variety of experimental parameters... be included, has also been applied to this area [27, 28]. Again, however, there is the limitation of treating the material as a continuum. Current modelling efforts are directed towards determining the forces experi- enced by individual particles in a granular...

Addiss, John

2010-02-09T23:59:59.000Z

142

Vegetation Response to CO2 and Climate  

NLE Websites -- All DOE Office Websites (Extended Search)

Vegetation Response to CO2 and Climate Vegetation Response to CO2 and Climate Area and Carbon Content of Sphagnum Since Last Glacial Maximum (2002) TDE Model Intercomparison Project Data Archive Presentations and abstracts from the recent DOE Terrestrial Science Team Meeting (Argonne National Laboratory, October 29-31, 2001) FACE (Free-Air CO2 Enrichment) Walker Branch Throughfall Displacement Experiment Data Report: Site Characterization, System Performance, Weather, Species Composition, and Growth (2001), NDP-078A | PDF Bibliography on CO2 Effects on Vegetation and Ecosystems: 1990-1999 Literature (2000), CDIAC-129 Direct effects of atmospheric CO2 enrichment on plants and ecosystems: An updated bibliographic data base (1994), CDIAC-70 A Database of Herbaceous Vegetation Responses to Elevated

143

EXPERIMENTS MODEL PK-101  

E-Print Network (OSTI)

to Quizzes 3 Introduction to Basic Components 4 Experiment #1: The Light Bulb 8 More About Resistors 10 Detector 17 Introduction to Capacitors 18 Experiment #8: Slow Light Bulb 20 Experiment #9: Small Dominates Light Bulbs 26 Introduction to Transistors 27 Experiment #14: The Electronic Switch 28 Experiment #15

Kachroo, Pushkin

144

Dynamic compression of metal disks in the freight train experiment  

SciTech Connect

A test method for high strain rate and large strain experiments is described. A Michelson interferometer is used to measure the specimen height. A long impact bar strikes the specimen and two strain gage load cells mounted on a long output bar measure the load-time function. The long strike and output bar allow a long time window to read the load-displacement of the specimen where the data are undisturbed by reflected waves. Stress-strain data for three metals are presented as an illustration of the method.

Morgan, J.A.; Carden, A.E.

1985-01-01T23:59:59.000Z

145

Operating Experience Summaries  

NLE Websites -- All DOE Office Websites (Extended Search)

Operating Experience Summaries The Office of Health, Safety and Security (HSS) Office of Analysis publishes the Operating Experience Summary to exchange lessons-learned information...

146

NREL Helps Clean Cities Displace Billions of Gallons of Petroleum, One Vehicle at a Time (Fact Sheet)  

SciTech Connect

With more than 15 years and nearly 3 billion gallons of displaced petroleum under its belt, the Clean Cities program relies on the support and expertise of the National Renewable Energy Laboratory (NREL). An initiative of the U.S. Department of Energy (DOE), Clean Cities creates public-private partnerships with a common mission: to reduce petroleum consumption in the transportation sector. Since the inception of Clean Cities in 1993, NREL has played a central role in supporting the program, an effort that stems from the laboratory's strategy to put scientific innovation into action in the marketplace.

Not Available

2010-10-01T23:59:59.000Z

147

The effect of expansion-ratio limitations on positive-displacement, total-flow geothermal power systems  

DOE Green Energy (OSTI)

Combined steam-turbine/positive-displacement engine (PDE) geothermal power systems are analyzed thermodynamically and compared with optimized reference flash-steam plants. Three different configurations of combined systems are considered. Treated separately are the cases of self-flowing and pumped wells. Two strategies are investigated that help overcome the inherent expansion-ratio limitation of PDE's: pre-flashing and pre-mixing. Parametrically-obtained results show the required minimum PDE efficiency for the combined system to match the reference plant for various sets of design conditions.

DiPippo, R.

1982-02-01T23:59:59.000Z

148

NREL Helps Clean Cities Displace Billions of Gallons of Petroleum, One Vehicle at a Time (Fact Sheet)  

SciTech Connect

With more than 15 years and nearly 3 billion gallons of displaced petroleum under its belt, the Clean Cities program relies on the support and expertise of the National Renewable Energy Laboratory (NREL). An initiative of the U.S. Department of Energy (DOE), Clean Cities creates public-private partnerships with a common mission: to reduce petroleum consumption in the transportation sector. Since the inception of Clean Cities in 1993, NREL has played a central role in supporting the program, an effort that stems from the laboratory's strategy to put scientific innovation into action in the marketplace.

2010-10-01T23:59:59.000Z

149

Eddy current position indicating apparatus for measuring displacements of core components of a liquid metal nuclear reactor  

DOE Patents (OSTI)

Apparatus for measuring displacements of core components of a liquid metal fast breeder reactor by means of an eddy current probe. The active portion of the probe is located within a dry thimble which is supported on a stationary portion of the reactor core support structure. Split rings of metal, having a resistivity significantly different than sodium, are fixedly mounted on the core component to be monitored. The split rings are slidably positioned around, concentric with the probe and symmetrically situated along the axis of the probe so that motion of the ring along the axis of the probe produces a proportional change in the probes electrical output.

Day, Clifford K. (Richland, WA); Stringer, James L. (Richland, WA)

1977-01-01T23:59:59.000Z

150

Fermilab | Science at Fermilab | Experiments & Projects | Experiments...  

NLE Websites -- All DOE Office Websites (Extended Search)

Particle Physics News Image Bank Fermilab in the News Quantum Diaries In this Section: Energy Frontier Intensity Frontier Cosmic Frontier Experiments at the Cosmic Frontier How...

151

Numerical Simulation of a Displacement Ventilation System with Multi-heat Sources and Analysis of Influential Factors  

E-Print Network (OSTI)

Displacement ventilation (DV) is a promising ventilation concept due to its high ventilation efficiency. In this paper, the application of the CFD method, the velocity and temperature fields of three-dimensional displacement ventilation systems with double heat sources are numerically simulated. The model is verified by experimental data. The results of the study show that thermal stratification characteristics exist in indoor temperature fields. The paper also analyzes the influence of different influential factors, e.g., the distance between heat sources, temperature of heat source, heat characteristics of the wall and outdoor temperature. It was found that the human requirement for comfort is satisfied easily when the distance between heat sources is long. Under the conditions simulated in this paper, when the distance was more than 0.8m, the temperature distribution tended to be average and steady, and it did not change as the distance changed. Second, the temperature change of the thermal current has a large influence on the indoor temperature. The rise in thermal current temperature makes the vertical temperature gradient in the room increase. The upper temperature of the room becomes higher, as does the height of the high temperature air level that lies in the upper part of the room. Finally, both the heat loss of the surrounding structure and the change in outdoor temperature have a large influence on indoor temperature. However, it does not influence the thermal stratification characteristics of DV. The only thing that has changed is the thermal stratification height.

Wu, X.; Gao, J.; Wu, W.

2006-01-01T23:59:59.000Z

152

Electricity displacement by wood used for space heating in PNWRES (Pacific Northwest Residential Energy Survey) (1983) households  

DOE Green Energy (OSTI)

This report evaluates the amount of electricity for residential space heating displaced by the use of wood in a sample of single-family households that completed the 1983 Pacific Northwest Residential Energy Survey. Using electricity bills and daily weather data from the period of July 1981 to July 1982, it was determined that the average household used 21,800 kWh per year, normalized with respect to weather. If no households had used any wood, electricity use would have increased 9%, to 23,700 kWh; space heating electricity use would also have increased, by 21%, to 47% of total electricity use. In the unlikely event that all households had used a great deal of wood for space heating, electricity use could have dropped by 23.5% from the average use, to 16,700 kWh; space heating electricity use would have dropped by 56%, to 24% of total electricity use. Indications concerning future trends regarding the displacement of electricity by wood use are mixed. On one hand, continuing to weatherize homes in the Pacific Northwest may result in less wood use as households find using electricity more economical. On the other hand, historical trends in replacement decisions regarding old space heating systems show a decided preference for wood. 11 refs., 6 figs., 8 tabs.

White, D.L.; Tonn, B.E.

1988-12-01T23:59:59.000Z

153

MISTY ECHO Tunnel Dynamics Experiment--Data report: Volume 1; Yucca Mountain Site Characterization Project  

SciTech Connect

Tunnel damage resulting from seismic loading is an important issue for the Yucca Mountain nuclear waste repository. The tunnel dynamics experiment was designed to obtain and document ground motions, permanent displacements, observable changes in fracture patterns, and visible damage at ground motion levels of interest to the Yucca Mountain Project. Even though the maximum free-field loading on this tunnel was 28 g, the damage observed was minor. Fielding details, data obtained, and supporting documentation are reported.

Phillips, J.S.; Luke, B.A.; Long, J.W.; Lee, J.G.

1992-04-01T23:59:59.000Z

154

MISTY ECHO tunnel dynamics experiment data report; Volume 2, Appendices: Yucca Mountain Site Characterization Project  

SciTech Connect

Tunnel damage resulting from seismic loading is an important issue for the Yucca Mountain nuclear waste repository. The tunnel dynamics experiment was designed to obtain and document ground motions, permanent displacements, observable changes in fracture patterns, and visible damage at ground motion levels of interest to the Yucca Mountain Project. Even though the maximum free-field loading on this tunnel was 28 g, the damage observed was minor. Fielding details, data obtained, and supporting documentation are reported.

Phillips, J.S.; Luke, B.A.; Long, J.W.; Lee, J.G.

1992-04-01T23:59:59.000Z

155

Topical viscosity control for light hydrocarbon displacing fluids in petroleum recovery and in fracturing fluids for well stimulation  

DOE Patents (OSTI)

Solvent-type flooding fluids comprising light hydrocarbons in the range of ethane to hexane (and mixtures thereof) are used to displace crude oil in formations having temperatures of about 20 degrees to about 150 degrees Centigrade and pressures above about 650 psi, the light hydrocarbons having dissolved therein from about 0.05% to about 3% of an organotin compound of the formula R.sub.3 SnF where each R is independently an alkyl, aryl or alkyaryl group from 3 to 12 carbon atoms. Under the pressures and temperatures described, the organotin compounds become pentacoordinated and linked through the electronegative bridges, forming polymers within the light hydrocarbon flooding media to render them highly viscous. Under ambient conditions, the viscosity control agents will not readily be produced from the formation with either crude oil or water, since they are insoluble in the former and only sparingly soluble in the latter.

Heller, John P. (Socorro, NM); Dandge, Dileep K. (Socorro, NM)

1986-01-01T23:59:59.000Z

156

COR Summary of Experience  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

COR SUMMARY OF EXPERIENCE COR SUMMARY OF EXPERIENCE Effective January 1, 2012 CORs who are applying for certification must demonstrate past contracting, acquisition, procurement, program/project management, and general business experience. This experience is based on a set of competencies. Some of the competencies are listed below to use as a reference when you are documenting your previous experience. Use this template to document your experience. Experience should be supported by a written confirmation from the cognizant Contracting Officer/Contract Specialist showing the contract number, title and date(s) to which the experience applied. Once you have completed this document, please forward it and its supporting statement(s) to your Site Acquisition Career Manager (SACM) as part of your application for COR certification.

157

Tropical Ocean Circulation Experiments  

Science Conference Proceedings (OSTI)

A primitive equation model of the equatorial Pacific Ocean was forced by realistic wind stress distributions over decades. Results were presented for a set of two experiments. In the first experiment the model was forced by an objectively ...

Mojib Latif

1987-02-01T23:59:59.000Z

158

Particle Physics Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

What Is A Particle Physics Experiment? The word "experiment" often makes people envision a scientist in white lab coat and goggles walking into the lab, pouring some test tubes...

159

Portable controls experiments  

E-Print Network (OSTI)

Experiments for controls classes like MIT's 2.004 require large lab setups and expensive equipment such as oscilloscopes and function generators. We developed a series of controls experiments based on National Instruments' ...

Larson, Richard Winston

2012-01-01T23:59:59.000Z

160

Origin, distribution, and movement of brine in the Permian Basin (U. S. A. ). A model for displacement of connate brine  

SciTech Connect

Na-Cl, halite Ca-Cl, and gypsum Ca-Cl brines with salinities from 45 to >300 g/L are identified and mapped in four hydrostratigraphic units in the Permian Basin area beneath western Texas and Oklahoma and eastern New Mexico, providing spatial and lithologic constraints on the interpretation of the origin and movement of brine. Na-Cl brine is derived from meteoric water as young as 5-10 Ma that dissolved anhydrite and halite, whereas Ca-Cl brine is interpreted to be ancient, modified-connate Permian brine that now is mixing with, and being displaced by, the Na-Cl brine. Displacement fronts appear as broad mixing zones with no significant salinity gradients. Evolution of Ca-Cl brine composition from ideal evaporated sea water is attributed to dolomitization and syndepositional recycling of halite and bittern salts by intermittent influx of fresh water and sea water. Halite Ca-Cl brine in the evaporite section in the northern part of the basin differs from gypsum Ca-Cl brine in the south-central part in salinity and Na/Cl ratio and reflects segregation between halite- and gypsum-precipitating lagoons during the Permian. Ca-Cl brine moved downward through the evaporite section into the underlying Lower Permian and Pennsylvanian marine section that is now the deep-basin brine aquifer, mixing there with pre-existing sea water. Buoyancy-driven convection of brine dominated local flow for most of basin history, with regional advection governed by topographically related forces dominant only for the past 5 to 10 Ma. 71 refs., 11 figs.

Bein, A.; Dutton, A.R. (Univ. of Texas, Austin (United States))

1993-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Measurement of probe displacement to the thermal resolution limit in photonic force microscopy using a miniature quadrant photodetector  

Science Conference Proceedings (OSTI)

A photonic force microscope comprises of an optically trapped micro-probe and a position detection system to track the motion of the probe. Signal collection for motion detection is often carried out using the backscattered light off the probe-however, this mode has problems of low S/N due to the small backscattering cross sections of the micro-probes typically used. The position sensors often used in these cases are quadrant photodetectors. To ensure maximum sensitivity of such detectors, it would help if the detector size matched with the detection beam radius after the condenser lens (which for backscattered detection would be the trapping objective itself). To suit this condition, we have used a miniature displacement sensor whose dimensions makes it ideal to work with 1:1 images of micrometer-sized trapped probes in the backscattering detection mode. The detector is based on the quadrant photo-integrated chip in the optical pick-up head of a compact disc player. Using this detector, we measured absolute displacements of an optically trapped 1.1 {mu}m probe with a resolution of {approx}10 nm for a bandwidth of 10 Hz at 95% significance without any sample or laser stabilization. We characterized our optical trap for different sized probes by measuring the power spectrum for each probe to 1% accuracy, and found that for 1.1 {mu}m diameter probes, the noise in our position measurement matched the thermal resolution limit for averaging times up to 10 ms. We also achieved a linear response range of around 385 nm with cross talk between axes {approx_equal}4% for 1.1 {mu}m diameter probes. The detector has extremely high bandwidth (few MHz) and low optical power threshold-other factors that can lead to its widespread use in photonic force microscopy.

Pal, Sambit Bikas; Haldar, Arijit; Roy, Basudev; Banerjee, Ayan [Department of Physical Sciences, IISER-Kolkata, West Bengal 741252 (India)

2012-02-15T23:59:59.000Z

162

Research Experience for Teachers  

Science Conference Proceedings (OSTI)

... Research Experience for Teachers (RET) program at NIST. NIST launches an initiative designed to give middle school science ...

2013-01-18T23:59:59.000Z

163

Fundamental neutrino experiments  

E-Print Network (OSTI)

We review fundamental open problems in neutrino physics and propose two basic experiments for their possible resolution.

Ruggero Maria Santilli

2006-11-06T23:59:59.000Z

164

IRLIB: Information Retrieval Experiment  

Science Conference Proceedings (OSTI)

IRLIB logo, INFORMATION RETRIEVAL EXPERIMENT. By Karen Sparck Jones Book published in 1981 that gives an overview ...

165

A MAPS based vertex detector for the STAR experiment at RHIC  

Science Conference Proceedings (OSTI)

The STAR experiment at RHIC is in the process of upgrading the inner detector region of the experiment to improve the vertex resolution. We describe the current design of a MAPS based vertex detector, which is the innermost and highest resolution detector of the set of three planned upgrade detectors. This detector will enable the identification of decay vertices displaced from the interaction vertex by 100-150 {micro}m and extend the capabilities of the STAR detector in the heavy flavor domain. We present selected detector design characteristics and prototyping results, which help to validate the design in preparation for the construction of the detector.

Anderssen, E; Ritter, H G; Schambach, J; Sun, X; Szelezniak, M

2011-09-11T23:59:59.000Z

166

The GLUEX Experiment  

Science Conference Proceedings (OSTI)

The GLUEX experiment to be constructed in the new Hall D at Jefferson Lab as part of the 12 GeV upgrade

M. R. Shepherd; on behalf of the GLUEX Collaboration

2009-01-01T23:59:59.000Z

167

Transformer Ratio Enhancement Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

TRANSFORMER RATIO ENHANCEMENT EXPERIMENT A. Kanareykin, Euclid Concepts LLC, Solon, OH 44139, USA W. Gai, J. G. Power. ANL, Argonne, IL, 60439, USA E. Nenasheva, Ceramics Ltd., St....

168

Sharing Smart Grid Experiences  

NLE Websites -- All DOE Office Websites (Extended Search)

Sharing Smart Grid Experiences through Performance Feedback March 31, 2011 DOENETL- DE-FE0004001 U.S. Department of Energy Office of Electricity Delivery and Energy Reliability...

169

Study of effect of seismic displacements on landslide susceptibility zonation (LSZ) in Garhwal Himalayan region of India using GIS and remote sensing techniques  

Science Conference Proceedings (OSTI)

Landslides are the most damaging and threatening aftereffect of seismic events in Garhwal Himalayas. It is evident from past seismic events in Uttarakhand, India that no other phenomena can produce landslides of so great in size and number as a single ... Keywords: Chamoli earthquake, Landslide, Seismic displacement

Naveen Pareek, Shilpa Pal, Mukat L. Sharma, Manoj K. Arora

2013-12-01T23:59:59.000Z

170

A displacement-based nonlinear finite element formulation using meshfree-enriched triangular elements for the two-dimensional large deformation analysis of elastomers  

Science Conference Proceedings (OSTI)

In this paper a displacement-based meshfree-enriched finite element method, which was proposed for the linear modeling of near-incompressible elasticity, is generalized for the nonlinear analysis of elastomers. A four-noded triangular element based on ... Keywords: Elastomers, Finite element, Meshfree, Near-incompressible, Nonlinear

W. Hu; C. T. Wu; M. Koishi

2012-03-01T23:59:59.000Z

171

Analysis of Emissions Calculators for the National Center of Excellence on Displaced Emission Reductions (CEDER): Annual Report  

E-Print Network (OSTI)

In August 2004, the USEPA issued guidance on quantifying the air emission benefits from electric sector energy efficiency and renewable energy. Because there was no clear best strategy, the EPAs guidance provided a framework and the basic requirements needed to demonstrate air quality improvements or emission reductions with adequate certainty to be incorporated into a State Implementation Plan (SIP) for achieving or maintaining National Ambient Air Quality Standards (NAAQS). The Energy Systems Laboratory, with guidance from both the US EPA and the Texas Commission on Environmental Quality (TCEQ), developed the first comprehensive engineering toolkit and database that satisfies the EPA guidelines. The value of this unique tool was demonstrated in 2005 when the Energy Systems Laboratory (ESL), at the request of the TCEQ, used it to develop integrated emissions estimates for all state agencies participating in the Texas Emissions Reduction Plan (TERP). Building on this expertise, the US EPA has established a National Center of Excellence on Displaced Emission Reductions (CEDER) at the Energy Systems Laboratory to research and gather the state-of-the-art on air pollution quantification techniques for Energy Efficiency / Renewable Energy (EE/RE) projects; provide technical support and customized analysis for state and local agencies seeking to estimate the environmental benefits from clean energy policies and programs; and to document how a user-friendly tool, based on e2Calc, can be used by clients to fulfill their needs to quantify emission reductions from energy efficiency and renewable energy measures.

Yazdani, Bahman; Culp, Charles; Haberl, Jeff; Baltazar, Juan-Carlos; Do, Sung Lok

2010-03-01T23:59:59.000Z

172

Franklin: User Experiences  

SciTech Connect

The newest workhorse of the National Energy Research Scientific Computing Center is a Cray XT4 with 9,736 dual core nodes. This paper summarizes Franklin user experiences from friendly early user period to production period. Selected successful user stories along with top issues affecting user experiences are presented.

National Energy Research Supercomputing Center; He, Yun (Helen); Kramer, William T.C.; Carter, Jonathan; Cardo, Nicholas

2008-05-07T23:59:59.000Z

173

Experiment 2 Meter Circuits  

E-Print Network (OSTI)

1 Experiment 2 Meter Circuits Even in these days of digital circuitry, the d'Arsonval meter to stress a spring. The strain of the spring is read as a deflection of a scale. Most d'Arsonval meter the meter. In this experiment, the basic d'Arsonval meter movement and simple passive circuitry will be used

King, Roger

174

COR Summary of Experience  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

COR SUMMARY OF EXPERIENCE Effective January 1, 2012, the Office of Federal Procurement Policy (OFPP) added a requirement for past COR experience to qualify for FAC-COR Level II (journeyman level) and III (senior/expert level). At least 1 year of COR experience is required to qualify for Level II; 2 years for Level III. OFPP strongly advises that applicants for Level III have prior experience at Level II. Applicants with no prior experience as an appointed COR must demonstrate proficiency in the specific competencies listed below for the same time period, validated by a cognizant Contracting Officer or Contract Specialist by signature below or an accompanying e-mail. Submit this form to your Site Acquisition Career Manager (SACM) as part of your application

175

Displaced capillary dies  

SciTech Connect

An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.

Kalejs, Juris P. (Wellesley, MA); Chalmers, Bruce (Falmouth, MA); Surek, Thomas (Englewood, CO)

1982-01-01T23:59:59.000Z

176

Displaced capillary dies  

SciTech Connect

An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die.

Kalejs, Juris P. (Wellesley, MA); Chalmers, Bruce (Falmouth, MA); Surek, Thomas (Englewood, CO)

1984-01-01T23:59:59.000Z

177

Displace/Discover  

E-Print Network (OSTI)

left: Minneapolis 50th Street light-rail station. AboveAbove: Minneapolis 38th Street light-rail station. work on

Wirth, Karen

2008-01-01T23:59:59.000Z

178

Large displacement spherical joint  

DOE Patents (OSTI)

A new class of spherical joints has a very large accessible full cone angle, a property which is beneficial for a wide range of applications. Despite the large cone angles, these joints move freely without singularities.

Bieg, Lothar F. (Albuquerque, NM); Benavides, Gilbert L. (Albuquerque, NM)

2002-01-01T23:59:59.000Z

179

IDP: Internally Displaced Person  

E-Print Network (OSTI)

The consultant would like to extend its sincere gratitude to the ACF Organization and ACF Liberia project team, all key informants in Bong County, at the visited villages for generously contributing to this report. Special thanks to the ACF WATSAN team in Liberia, namely Mr. Souleymane, Mr. Winika and Ms. Aurelie and my fellow evaluators Mr. Solomon Teh and Ms. Alice Howard and all drivers because the mission would not have been possible without their contributions. Executive summary

Mr. Lionel; Laurens Acknowledgements; Ld Liberian Dollar

2005-01-01T23:59:59.000Z

180

Radiochemical solar neutrino experiments  

E-Print Network (OSTI)

Radiochemical experiments have been crucial to solar neutrino research. Even today, they provide the only direct measurement of the rate of the proton-proton fusion reaction, p + p --> d + e^+ + nu_e, which generates most of the Sun's energy. We first give a little history of radiochemical solar neutrino experiments with emphasis on the gallium experiment SAGE -- the only currently operating detector of this type. The combined result of all data from the Ga experiments is a capture rate of 67.6 +/- 3.7 SNU. For comparison to theory, we use the calculated flux at the Sun from a standard solar model, take into account neutrino propagation from the Sun to the Earth and the results of neutrino source experiments with Ga, and obtain 67.3 ^{+3.9}_{-3.5} SNU. Using the data from all solar neutrino experiments we calculate an electron neutrino pp flux at the earth of (3.41 ^{+0.76}_{-0.77}) x 10^{10}/(cm^2-s), which agrees well with the prediction from a detailed solar model of (3.30 ^{+0.13} _{-0.14}) x 10^{10}/(cm^2-s). Four tests of the Ga experiments have been carried out with very intense reactor-produced neutrino sources and the ratio of observed to calculated rates is 0.88 +/- 0.05. One explanation for this unexpectedly low result is that the cross section for neutrino capture by the two lowest-lying excited states in 71Ge has been overestimated. We end with consideration of possible time variation in the Ga experiments and an enumeration of other possible radiochemical experiments that might have been.

V. N. Gavrin; B. T. Cleveland

2007-03-06T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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181

Russian Grouting Experience  

DOE Green Energy (OSTI)

The final report on Russian Grouting experience provided an opportunity for international cooperation and access to Russian grouting/waste form experience. the data on radiolytic gas generation from grout mixtures was already used in evaluation of the source of hydrogen and methane generation detected in the sampling ports around the SRS high-level waste tanks in 2002. The concept of venting the radiolytic gases from a waste form by adding porous aggregate is being considered for future cement-based TRU waste forms at SRS. The objectives of this work were to document the Russian experience on grouting for waste forms and tank closures or other decommissioning applications.

Langton, C.A.

2002-10-15T23:59:59.000Z

182

Reactor Neutrino Experiments  

E-Print Network (OSTI)

Precisely measuring $\\theta_{13}$ is one of the highest priority in neutrino oscillation study. Reactor experiments can cleanly determine $\\theta_{13}$. Past reactor neutrino experiments are reviewed and status of next precision $\\theta_{13}$ experiments are presented. Daya Bay is designed to measure $\\sin^22\\theta_{13}$ to better than 0.01 and Double Chooz and RENO are designed to measure it to 0.02-0.03. All are heading to full operation in 2010. Recent improvements in neutrino moment measurement are also briefed.

Jun Cao

2007-12-06T23:59:59.000Z

183

BNL | Completed ATF Experiments  

NLE Websites -- All DOE Office Websites (Extended Search)

Completed / Terminated ATF Experiments Completed / Terminated ATF Experiments AE01 - Micro-undulator FEL Experiment. Spokesperson: I. Ben-Zvi, BNL. (1992 - 1997) AE02. - Inverse FEL Accelerator. Spokesperson: A. van Steenbergen, BNL. [Yale, Columbia]. (1992-1997) AE03 - Laser Grating Accelerator Experiment. Spokesperson: R. Fernow, BNL. [Princeton, LANL]. (1992- 1996) AE05 - Nonlinear-Compton Scattering. Spokesperson: K. McDonald, Princeton (1992-) AE06 - Inverse Cherenkov Acceleration. Spokesperson: W. Kimura, STI Optronics. [UCSB,BNL]. (1992-1997) AE08 - Far Infrared Radiation Source. Spokesperson J. Walsh, Dartmouth. [Oxford, BNL]. (1992 - 1994) AE09. - Photocathode R&D. Spokesperson: T. Rao, BNL. (1992 - ) AE10. - High Gain Harmonic Generation FEL. Spokesperson: L.H. Yu, BNL. [ANL] (1992 - 2001)

184

Laboratory setup and results of experiments on two-dimensional multiphase flow in porous media  

Science Conference Proceedings (OSTI)

In the event of an accidental release into earth's subsurface of an immiscible organic liquid, such as a petroleum hydrocarbon or chlorinated organic solvent, the spatial and temporal distribution of the organic liquid is of great interest when considering efforts to prevent groundwater contamination or restore contaminated groundwater. An accurate prediction of immiscible organic liquid migration requires the incorporation of relevant physical principles in models of multiphase flow in porous media; these physical principles must be determined from physical experiments. This report presents a series of such experiments performed during the 1970s at the Swiss Federal Institute of Technology (ETH) in Zurich, Switzerland. The experiments were designed to study the transient, two-dimensional displacement of three immiscible fluids in a porous medium. This experimental study appears to be the most detailed published to date. The data obtained from these experiments are suitable for the validation and test calibration of multiphase flow codes. 73 refs., 140 figs.

McBride, J.F. (ed.) (Pacific Northwest Lab., Richland, WA (USA)); Graham, D.N. (ed.); Schiegg, H.O. (SIMULTEC Ltd., Meilen/Zurich (Switzerland))

1990-10-01T23:59:59.000Z

185

Vibrational experiments at the HDR (Heissdampfreaktor) German/US cooperation  

Science Conference Proceedings (OSTI)

As part of an overall effort on the validation of seismic calculational methods, the US NRC/RES is collaborating with the Kernforschungszentrum Karlsruhe, FRG, in the vibrational/earthquake experiments conducted at the HDR (Heissdampfreaktor) Test Facility in Kahl/Main, FRG. In the most recent experiments (SHAG), high level excitations were produced in the HDR by means of an eccentric-mass coastdown shaker capable of developing 1000 tons of force. The purpose of the experiments was to investigate full-scale structural response, soil-structure interaction, and piping and equipment response. Data obtained in the tests serve to evaluate analysis methods. In the SHAG experiments, loadings of the HDR soil-structure system approached incipient failure levels as evidenced by high peak accelerations and displacements, local damage, nonlinear behavior, soil subsidence, and wall strains which exceeded estimated limit values. Also, the performance of different pipe hanger configurations for the VKL piping system was compared in these tests under high excitation levels. The support configurations ranged from very rigid systems (strut/snubbers) to very flexible configurations (spring and constant force supports). Pretest and post-test analyses for the building/soil and piping response were performed and are being validated with the test data.

Kot, C.A.; Malcher, L.; Costello, J.F.

1987-04-01T23:59:59.000Z

186

Complete Experiment Safety Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Complete Experiment Safety Documentation Print Complete Experiment Safety Documentation Print User Safety Overview The steps for authorization of your experiment are described below. The ALS Experiment Coordinators are available to support you through this process. Please This e-mail address is being protected from spambots. You need JavaScript enabled to view it at any stage if you have questions or need more information. Prior to Your Arrival at the ALS 1. Complete or Update and Experiment Safety Sheet If you did not submit a General User Proposal, you must submit an ESS one month prior to arrival at the ALS. 2. Biological, Radioactive, Hazardous, and Electrical Materials, and Lasers If your experiment involves the use of any of the above materials-no matter how small the quantities are or how innocuous the sample may be-additional authorization may be required. Please submit your ESS early and clearly identify your materials. Our staff will assess the hazards and contact you about any necessary supplementary documentation.

187

Complete Experiment Safety Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Complete Experiment Safety Documentation Print Complete Experiment Safety Documentation Print User Safety Overview The steps for authorization of your experiment are described below. The ALS Experiment Coordinators are available to support you through this process. Please This e-mail address is being protected from spambots. You need JavaScript enabled to view it at any stage if you have questions or need more information. Prior to Your Arrival at the ALS 1. Complete or Update and Experiment Safety Sheet If you did not submit a General User Proposal, you must submit an ESS one month prior to arrival at the ALS. 2. Biological, Radioactive, Hazardous, and Electrical Materials, and Lasers If your experiment involves the use of any of the above materials-no matter how small the quantities are or how innocuous the sample may be-additional authorization may be required. Please submit your ESS early and clearly identify your materials. Our staff will assess the hazards and contact you about any necessary supplementary documentation.

188

Complete Experiment Safety Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Complete Experiment Safety Documentation Print Complete Experiment Safety Documentation Print User Safety Overview The steps for authorization of your experiment are described below. The ALS Experiment Coordinators are available to support you through this process. Please This e-mail address is being protected from spambots. You need JavaScript enabled to view it at any stage if you have questions or need more information. Prior to Your Arrival at the ALS 1. Complete or Update and Experiment Safety Sheet If you did not submit a General User Proposal, you must submit an ESS one month prior to arrival at the ALS. 2. Biological, Radioactive, Hazardous, and Electrical Materials, and Lasers If your experiment involves the use of any of the above materials-no matter how small the quantities are or how innocuous the sample may be-additional authorization may be required. Please submit your ESS early and clearly identify your materials. Our staff will assess the hazards and contact you about any necessary supplementary documentation.

189

Complete Experiment Safety Documentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Complete Experiment Safety Documentation Print Complete Experiment Safety Documentation Print User Safety Overview The steps for authorization of your experiment are described below. The ALS Experiment Coordinators are available to support you through this process. Please This e-mail address is being protected from spambots. You need JavaScript enabled to view it at any stage if you have questions or need more information. Prior to Your Arrival at the ALS 1. Complete or Update and Experiment Safety Sheet If you did not submit a General User Proposal, you must submit an ESS one month prior to arrival at the ALS. 2. Biological, Radioactive, Hazardous, and Electrical Materials, and Lasers If your experiment involves the use of any of the above materials-no matter how small the quantities are or how innocuous the sample may be-additional authorization may be required. Please submit your ESS early and clearly identify your materials. Our staff will assess the hazards and contact you about any necessary supplementary documentation.

190

Centrifuge Techniques and Apparatus for Transport Experiments in Porous Media  

SciTech Connect

This paper describes experimental approaches and apparatus that we have developed to study solute and colloid transport in porous media using Idaho National Laboratory's 2-m radius centrifuge. The ex-perimental techniques include water flux scaling with applied acceleration at the top of the column and sub-atmospheric pressure control at the column base, automation of data collection, and remote experimental con-trol over the internet. These apparatus include a constant displacement piston pump, a custom designed liquid fraction collector based on switching valve technology, and modified moisture monitoring equipment. Suc-cessful development of these experimental techniques and equipment is illustrated through application to transport of a conservative tracer through unsaturated sand column, with centrifugal acceleration up to 40 gs. Development of such experimental equipment that can withstand high accelerations enhances the centrifuge technique to conduct highly controlled unsaturated solute/colloid transport experiments and allows in-flight liquid sample collection of the effluent.

Earl D. Mattson; Carl D. Paler; Robert W. Smith; Markus Flury

2010-06-01T23:59:59.000Z

191

Hershey-Chase experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

Hershey-Chase experiment Hershey-Chase experiment Name: pei01 Location: N/A Country: N/A Date: N/A Question: I would like to know the characteristics of Griffth's experiment, and Hershey-Chase experiment. Replies: For the H-C experiment: It was designed to show that the type of virus known as a bacteriophage infected bacteria by injecting its DNA, and not by incorporating the entire virus into the bacterium. This was important because it showed that the entire replication of the virus could be coded for in the DNA of the virus, and not in the coat protein. They labeled with radioactivity the coat of the virus using one type of label 35-S, and the DNA with another, 32-P and then infected bacteria. After infection, the bacteria contained only 32-P, and no 35-S. The viruses went on to destroy the bacteria and reproduce, and the new viruses contained no 35-S in their coats. Source: Biology, 3rd ed., by Solomon et al., although the same information is in almost all texts at the college level

192

New approach of determinations of earthquake moment magnitude using near earthquake source duration and maximum displacement amplitude of high frequency energy radiation  

SciTech Connect

The new approach method to determine the magnitude by using amplitude displacement relationship (A), epicenter distance ({Delta}) and duration of high frequency radiation (t) has been investigated for Tasikmalaya earthquake, on September 2, 2009, and their aftershock. Moment magnitude scale commonly used seismic surface waves with the teleseismic range of the period is greater than 200 seconds or a moment magnitude of the P wave using teleseismic seismogram data and the range of 10-60 seconds. In this research techniques have been developed a new approach to determine the displacement amplitude and duration of high frequency radiation using near earthquake. Determination of the duration of high frequency using half of period of P waves on the seismograms displacement. This is due tothe very complex rupture process in the near earthquake. Seismic data of the P wave mixing with other wave (S wave) before the duration runs out, so it is difficult to separate or determined the final of P-wave. Application of the 68 earthquakes recorded by station of CISI, Garut West Java, the following relationship is obtained: Mw = 0.78 log (A) + 0.83 log {Delta}+ 0.69 log (t) + 6.46 with: A (m), d (km) and t (second). Moment magnitude of this new approach is quite reliable, time processing faster so useful for early warning.

Gunawan, H.; Puspito, N. T.; Ibrahim, G.; Harjadi, P. J. P. [ITB, Faculty of Earth Sciences and Tecnology (Indonesia); BMKG (Indonesia)

2012-06-20T23:59:59.000Z

193

Dopamine transporter occupancy by RTI-55 determined using labeled cocaine, and displacement of RTI-55 with unlabeled cocaine  

SciTech Connect

We have previously visualized dopamine transporters (DAT) in human and baboon striatum using PET and C-11 cocaine. Cocaine analogs such as 3{beta}-(4-iodophenyl) tropane-2{beta}-carboxylic acid methyl ester (RTI-55 or {beta}CIT) with a higher affinity for the DAT may be potentially useful in interfering with cocaine`s actions in brain. We evaluated the time course of the effects of RTI-55 on C-11 cocaine binding in baboon brain prior to and 90 minutes, 24 hours, 4-5 days and 11-13 days after RTI-55(0.3 mg/kg iv). RTI-55 significantly inhibited C-11 cocaine binding at 90 minutes and 24 hours after administration. The half life for the clearance of RTI-55 from the DAT was estimated to be 2 to 3 days in the baboon brain. Parallel studies with H-3 cocaine and RTI-55 (0.5 mg/kg iv or 2 mg/kg ip) were performed in mice, where RTI-55 significantly inhibited 5 minute striatum-to-cerebellium ratios (S/C) at 60 and 180 minutes after administration, and recovery was obtained at 12 hours. However, unlabeled cocaine (20 mg/Kg, i/p) given 60 minutes after RTI-55 led to a greater recovery of H-3 cocaine uptake measured at 180 minutes (S/C = 1.23 {plus_minus} 0.07, n= 5), than in control animals given saline after RTI-55 (S/C = 9.5{plus_minus}0.08). Animals given saline instead of RTI-55 had S/C = 1.45{plus_minus}0.04. These results document long lasting inhibition of cocaine binding by RTI-55 and corroborate the assumption that the binding kinetics of RTI-55 in striatum observed in SPECT imaging studies with I-123 RTI-55 represents binding to DAT`s. However, a pharmacological dose of cocaine is able to displace a fraction of the previously bound RTI-55 from the DAT. These findings have implications for drug development strategies for cocaine abuse.

Gatley, S.J.; Volkow, N.D.; Fowler, J.S. [Brookhaven National Laboratory, Upton, NY (United States)] [and others

1995-05-01T23:59:59.000Z

194

AGS experiments, 1988, 1989, 1990  

SciTech Connect

This report contains: experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; experiment long range schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS experiments; and list of experimenters.

Depken, J.C.

1991-04-01T23:59:59.000Z

195

Venus Fly Trap Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

Venus Fly Trap Experiment Venus Fly Trap Experiment Name: Jeremy Bailey Status: N/A Age: N/A Location: N/A Country: N/A Date: N/A Question: My name is Jeremy Bailey, and I am a student of Dorseyville Middle School. I have been working on a science project about Venus' Fly Traps. A recent addition to the project involved designing an experiment about something I found interesting about them. However, I don't know where to get them or how to grow them in the moderate climate of Pittsburgh. Also, I don't know how a successful experiment could be designed. Replies: Jeremy, I believe Venus Fly traps can be found 'in the wild' in the coastal floodplain of the Carolinas. As far as where to buy them, look in the phonebook yellow pages under plants or houseplants and do some calling. I live in eastern Pennsylvania, and over here they even sell them in hardware stores like Hechinger's and Home Depot (in their garden departments). I don't think you will have luck trying to grow them outside, our winters here are a bit too harsh for them. From what I recall they require substantial moisture and more moderate climes. You might try looking for houseplant books at your local library for more detailed information.

196

FLORIDA TOWER FOOTPRINT EXPERIMENTS  

SciTech Connect

The Florida Footprint experiments were a series of field programs in which perfluorocarbon tracers were released in different configurations centered on a flux tower to generate a data set that can be used to test transport and dispersion models. These models are used to determine the sources of the CO{sub 2} that cause the fluxes measured at eddy covariance towers. Experiments were conducted in a managed slash pine forest, 10 km northeast of Gainesville, Florida, in 2002, 2004, and 2006 and in atmospheric conditions that ranged from well mixed, to very stable, including the transition period between convective conditions at midday to stable conditions after sun set. There were a total of 15 experiments. The characteristics of the PFTs, details of sampling and analysis methods, quality control measures, and analytical statistics including confidence limits are presented. Details of the field programs including tracer release rates, tracer source configurations, and configuration of the samplers are discussed. The result of this experiment is a high quality, well documented tracer and meteorological data set that can be used to improve and validate canopy dispersion models.

WATSON,T.B.; DIETZ, R.N.; WILKE, R.; HENDREY, G.; LEWIN, K.; NAGY, J.; LECLERC, M.

2007-01-01T23:59:59.000Z

197

Semantics, experience and time  

Science Conference Proceedings (OSTI)

The computational hypothesis, with its inherent representationalism, and the dynamical hypothesis, with its apparent absence of representations and its commitment to continuous time, stand at an impasse. It is unclear how the dynamical stance can handle ... Keywords: Computation, Experience, Invariance, Semantics, Situatedness, Time

Stephen E. Robbins

2002-09-01T23:59:59.000Z

198

Ganges valley aerosol experiment.  

Science Conference Proceedings (OSTI)

In June 2011, the Ganges Valley Aerosol Experiment (GVAX) began in the Ganges Valley region of India. The objective of this field campaign is to obtain measurements of clouds, precipitation, and complex aerosols to study their impact on cloud formation and monsoon activity in the region.

Kotamarthi, V.R.; Satheesh, S.K. (Environmental Science Division); (Indian Institute of Science, Bangalore, India)

2011-08-01T23:59:59.000Z

199

The MAJORANA Experiment  

SciTech Connect

The Majorana Collaboration is assembling an array of HPGe detectors to search for neutrinoless double-beta decay in {sup 76}Ge. Initially, Majorana aims to construct a prototype module to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module are presented.

Guiseppe, V.E. [Univ S Dakota; Keller, C. [Univ S Dakota; Mei, D-M [Univ S Dakota; Perevozchikov, O. [Univ S Dakota; Perumpilly, G. [Univ S Dakota; Thomas, K. [Univ S Dakota; Xiang, W. [Univ S Dakota; Zhang, C. [Univ S Dakota; Aalseth, C.E. [Pacific NW Natl Lab Richland, WA; Aguayo, E. [Pacific NW Natl Lab Richland, WA; Ely, J. [Pacific NW Natl Lab Richland, WA; Fast, J.E. [Pacific NW Natl Lab Richland, WA; Hoppe, E.W. [Pacific NW Natl Lab Richland, WA; Hossbach, T.W. [Pacific NW Natl Lab Richland, WA; Keillor, M. [Pacific NW Natl Lab Richland, WA; Kephart, J.D. [Pacific NW Natl Lab Richland, WA; Kouzes, R. [Pacific NW Natl Lab Richland, WA; Miley, H.S. [Pacific NW Natl Lab Richland, WA; Mizouni, L. [Pacific NW Natl Lab Richland, WA; Myers, A.W. [Pacific NW Natl Lab Richland, WA; Reid, D. [Pacific NW Natl Lab Richland, WA; Amman, M. [Lawrence Berkeley National Laboratory (LBNL); Bergevin, M. [Lawrence Berkeley National Laboratory (LBNL); Chan, Y-D [Lawrence Berkeley National Laboratory (LBNL); Detwiler, J.A. [Lawrence Berkeley National Laboratory (LBNL); Loach, J.C. [Lawrence Berkeley National Laboratory (LBNL); Luke, P.N. [Lawrence Berkeley National Laboratory (LBNL); Martin, R.D. [Lawrence Berkeley National Laboratory (LBNL); Poon, A.W.P. [Lawrence Berkeley National Laboratory (LBNL); Prior, G. [Lawrence Berkeley National Laboratory (LBNL); Vetter, K. [Lawrence Berkeley National Laboratory (LBNL); Yaver, H. [Lawrence Berkeley National Laboratory (LBNL); Avignone, F.T. III [University of South Carolina; Creswick, R. [University of South Carolina; Farach, H. [University of South Carolina; Mizouni, L. [University of South Carolina; Avignone, Frank Titus [ORNL; Bertrand Jr, Fred E [ORNL; Capps, Gregory L [ORNL; Cooper, Reynold J [ORNL; Radford, David C [ORNL; Varner Jr, Robert L [ORNL; Wilkerson, John F [University of North Carolina, Chapel Hill; Yu, Chang-Hong [ORNL; Back, H.O. [University of North Carolina; Leviner, L. [North Carolina State University; Young, A.R. [North Carolina State University; Back (et al.), H.O. [Triangle Universities Nuclear Laboratory, Durham, NC; Bai, X. [South Dakota School of Mines and Technology; Hong, H. [South Dakota School of Mines and Technology; Howard, S. [South Dakota School of Mines and Technology; Medlin, D. [South Dakota School of Mines and Technology; Sobolev, V. [South Dakota School of Mines and Technology; Barabash, A.S. [Inst Theort & Expt Phys, Moscow, Russia; Konovalov, S.I. [Inst Theort & Expt Phys, Moscow, Russia; Vanyushin, I. [Inst Theort & Expt Phys, Moscow, Russia; Yumatov, V. [Inst Theort & Expt Phys, Moscow, Russia; Barbeau, P.S. [University of Chicago; Collar, J.I. [University of Chicago; Fields, N. [University of Chicago; Boswell (et al.), M. [Los Alamos National Laboratory (LANL); Brudanin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Egorov, V. [Joint Institute for Nuclear Research, Dubna, Russia; Gusey, K. [Joint Institute for Nuclear Research, Dubna, Russia; Kochetov, O. [Joint Institute for Nuclear Research, Dubna, Russia; Shirchenko, M. [Joint Institute for Nuclear Research, Dubna, Russia; Timkin, V. [Joint Institute for Nuclear Research, Dubna, Russia; Yakushev, E. [Joint Institute for Nuclear Research, Dubna, Russia; Bugg, W. [University of Tennessee, Knoxville (UTK); Efremenko, M. [University of Tennessee, Knoxville (UTK); Burritt (et al.), T.H. [University of Washington, Ctr Expt Nucle Phys & Astrophys; Burritt (et al.), T.H. [University of Washington, Dept Phys, Seattle, WA; Busch, M. [Duke University; Esterline, J. [Duke University; Swift, G. [Duke University; Tornow, W. [Duke University/TUNL; Ejiri, H. [Osaka University; Hazama, R. [Osaka University; Nomachi, M. [Osaka University; Shima, T. [Osaka University; Finnerty (et al.), P. [University of North Carolina; et al.

2011-01-01T23:59:59.000Z

200

Magical experiences in interaction design  

Science Conference Proceedings (OSTI)

This paper is a description of design experiments performed to investigate the use of magical experiences in interaction design of consumer electronics. Magical experiences are usually associated with a passive audience watching a magician, but it is ...

Sam de Jongh Hepworth

2007-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Investigations on loop antenna excited whistler waves in a cylindrical plasma based on laboratory experiments and simulations  

Science Conference Proceedings (OSTI)

Experimental investigations and simulations of loop antenna excited whistler waves in a cylindrical low temperature plasma are presented. Experiments are performed in the VINETA [Franck et al., Plasma Sources Sci. Technol. 14, 226 (2005)] device and simulations are generated using IPF-FD3D [C. Lechte, IEEE Trans. Plasma Sci. 37, 1099 (2009)], an implementation of the Yee-algorithm. A good agreement of the experiment and the simulation is found. The simulation is used to predict the spatial structure of the wave, the dominant source of the electric field, the relative contribution of electron, and displacement current as well as parallel and perpendicular currents to the magnetic field of the wave.

Pfannmoeller, J. P. [Max-Planck-Institut fuer Plasmaphysik, EURATOM Assoziation, Greifswald (Germany); Lechte, C. [Institut fuer Plasmaforschung, Stuttgart (Germany); Grulke, O.; Klinger, T. [Max-Planck-Institut fuer Plasmaphysik, EURATOM Assoziation, Greifswald (Germany); Ernst-Moritz-Arndt Universitaet, Greifswald (Germany)

2012-10-15T23:59:59.000Z

202

Human Radiation Experiments: What's New  

NLE Websites -- All DOE Office Websites (Extended Search)

of Defense Report Finding Aids Department of Defense Report on Search for Human Radiation Experiments Records 1944-1994 Exit Human Radiation Experiments Site This...

203

ORISE: Faculty Research Experiences  

NLE Websites -- All DOE Office Websites (Extended Search)

Faculty Research Experiences Faculty Research Experiences The Oak Ridge Institute for Science and Education (ORISE) provides short- and long-term programs for either faculty or faculty-student teams to collaborate with ORISE's science and engineering partners. The length of the faculty programs can vary-from summer internships to year-long sabbaticals-but all programs enable faculty members to broaden their professional outlook beyond the classroom to the application of laboratory research. For example, these researchers have taken advantage of ORISE opportunities: Dr. Miguel Castro Dr. Miguel Castro Dr. Miguel Castro, of the University of Puerto Rico in Mayaguez, spent three months conducting research on surface tension in Oak Ridge National Laboratory's Faculty Student Team Research program.

204

Electronics for Satellite Experiments  

SciTech Connect

The tracking detector for the LAT science instrument on the GLAST mission is an example of a large-scale particle detection system built primarily by particle physicists for space flight within the context of a NASA program. The design and fabrication model in most ways reflected practice and experience from particle physics, but the quality assurance aspects were guided by NASA. Similarly, most of the electronics in the LAT as a whole were designed and built by staff at a particle physics lab. This paper reports on many of the challenges and lessons learned in the experience of designing and building the tracking detector and general LAT electronics for use in the NASA GLAST mission.

Johnson, Robert P.; /UC, Santa Cruz

2006-05-16T23:59:59.000Z

205

Physics Experiments on NIF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 ! LLNL Progress towards Ignition & Weapons Physics Experiments on NIF Presentation to: SEAB October 12, 2011 Ed Moses Director, NIF and Photon Science LLNL-PRES-506751 May 30, 2011 Moses_BOG_92811 NIF has broad array of technical and operational capabilities Moses_BOG_92811 Moses_BOG_92811 Laser bay NIF-0210-18489.ppt Moses presentation to Professor Mohamed Abdou, Neil Morley, Alice Ying, Robert Reed UCLA 5 Moses_All_Hands_100511 We are steadily increasing the laser energy and power available for ignition experiments: fy09 Moses_All_Hands_100511 We are steadily increasing the laser energy and power available for ignition experiments: fy10

206

AGS Experiments: 1989, 1990, 1991  

Science Conference Proceedings (OSTI)

This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule ``as run``; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

Depken, J.C.

1992-02-01T23:59:59.000Z

207

AGS Experiments: 1989, 1990, 1991  

SciTech Connect

This report contains: Experimental areas layout; table of beam parameters and fluxes; experiment schedule as run''; proposed 1992 schedule; a listing of experiments by number; two-page summaries of each experiment begin here, also ordered by number; publications of AGS Experiments begin here; and list of AGS Experimenters begins here.

Depken, J.C.

1992-02-01T23:59:59.000Z

208

APS Experiment Safety Review Board  

NLE Websites -- All DOE Office Websites (Extended Search)

Charter for the APS Experiment Safety Review Board May 12, 2011 1. Purpose The APS Experiment Safety Review Board (ESRB) advises the AES Division Director on the safe implementation of experiments performed by APS users on the experiment hall floor. The ESRB reviews each experiment that is submitted to the APS via the APS Experiment Safety Assessment System (ESAF). These experiments are conducted in beamline endstations in the APS Experiment Hall. 2. Membership The ESRB members are appointed by the AES Division Director. The current members of the ESRB are: Bruce Glagola AES - Chair Edmund Chang AES Paul Rossi XSD Nena Moonier AES Tom Barkalow PSC Patricia Pedergnana AES Wendy VanWingeren AES 3. Method After an experiment is submitted to the APS Experiment Safety Review system

209

2169 steel waveform experiments.  

Science Conference Proceedings (OSTI)

In support of LLNL efforts to develop multiscale models of a variety of materials, we have performed a set of eight gas gun impact experiments on 2169 steel (21% Cr, 6% Ni, 9% Mn, balance predominantly Fe). These experiments provided carefully controlled shock, reshock and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa (particle velocities from 0.25 to 1.05 km/s). Both windowed and free-surface measurements were included in this experiment set to increase the utility of the data set, as were samples ranging in thickness from 1 to 5 mm. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release path (windowed and free-surface). The Hugoniot was found to be nearly linear, with no indications of the Fe-phase transition. Releases were non-hysteretic, and relatively consistent between 3- and 5-mm-thick samples (the 3 mm samples giving slightly lower wavespeeds on release). Reshock tests with explosively welded impactors produced clean results; those with glue bonds showed transient releases prior to the arrival of the reshock, reducing their usefulness for deriving strength information. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for thin (1 mm) samples than for thicker (2 or 4 mm) samples. A configuration used for the last three shots allows release information to be determined from these free surface samples. The sample strength appears to increase with stress from ~1 GPa to ~ 3 GPa over this range, consistent with other recent work but about 40% above the Steinberg model.

Furnish, Michael David; Alexander, C. Scott; Reinhart, William Dodd; Brown, Justin L.

2012-11-01T23:59:59.000Z

210

2169 steel waveform experiments.  

SciTech Connect

In support of LLNL efforts to develop multiscale models of a variety of materials, we have performed a set of eight gas gun impact experiments on 2169 steel (21% Cr, 6% Ni, 9% Mn, balance predominantly Fe). These experiments provided carefully controlled shock, reshock and release velocimetry data, with initial shock stresses ranging from 10 to 50 GPa (particle velocities from 0.25 to 1.05 km/s). Both windowed and free-surface measurements were included in this experiment set to increase the utility of the data set, as were samples ranging in thickness from 1 to 5 mm. Target physical phenomena included the elastic/plastic transition (Hugoniot elastic limit), the Hugoniot, any phase transition phenomena, and the release path (windowed and free-surface). The Hugoniot was found to be nearly linear, with no indications of the Fe-phase transition. Releases were non-hysteretic, and relatively consistent between 3- and 5-mm-thick samples (the 3 mm samples giving slightly lower wavespeeds on release). Reshock tests with explosively welded impactors produced clean results; those with glue bonds showed transient releases prior to the arrival of the reshock, reducing their usefulness for deriving strength information. The free-surface samples, which were steps on a single piece of steel, showed lower wavespeeds for thin (1 mm) samples than for thicker (2 or 4 mm) samples. A configuration used for the last three shots allows release information to be determined from these free surface samples. The sample strength appears to increase with stress from ~1 GPa to ~ 3 GPa over this range, consistent with other recent work but about 40% above the Steinberg model.

Furnish, Michael David; Alexander, C. Scott; Reinhart, William Dodd; Brown, Justin L.

2012-11-01T23:59:59.000Z

211

HPCToolsExperiences.pptx  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiences Experiences w ith T ools a t N ERSC Richard G erber NERSC User Services Programming w eather, c limate, a nd e arth---system m odels on h eterogeneous m ul>---core p la?orms September 7 , 2 011 a t t he N a>onal C enter f or A tmospheric R esearch i n B oulder, C olorado 2 * Thanks f or t he i nvita>on * My p rofessional g oal i s t o e nable s cien>sts t o u se H PC easily a nd e ffec>vely * Contribute t o i mportant d iscoveries a bout h ow o ur natural w orld w orks * Make a d ifference * So i t i s a n h onor & m eaningful t o m e t o p ar>cipate i n this c onference * One o f m y p rimary r oles i s a s d eputy o n o ur n ext procurement t eam & w e a re e xtremely i nterested i n learning a bout y our e xperiences w ith h ybrid s ystems and p rogramming 3 * Recent e xperiences p roviding t ools *

212

ATLAS APPROVED EXPERIMENTS  

NLE Websites -- All DOE Office Websites (Extended Search)

8MAY98 8MAY98 Exp # Spokesperson Experiment Title Days 433-9 Miller Ion Irradiations of Anisotropic High-Tc Superconductors: Probing Dynamics of Magnetic Vortices 2 651-2 Paul Accelerator-Mass-Spectrometry Measurements of Natural 236U Concentrations with the ECR-ATLAS System 4 667-2 Janssens Unsafe Coulex of the 238,239Pu Nuclei 4 669-2 Carpenter Excited States Associated with Different Shapes in 178Hg and Neighboring Odd-A Nuclei 4 673-2 Lister A Study of Radiative Decay from High Lying States in 24Mg 5 689-2 Freeman Spectroscopy of Odd Tin Isotopes Approaching 100Sn 5 693-2 Reiter Structure and Formation Mechanism of Heavy Elements - Request for additional beam time for Experiment 693 - 6 706 Kwok Heavy-Ion Lithography on High Temperature Superconductors 2 708 Yu In-Beam Spectroscopy Study of the Proton Emitter 109I with Recoil-Decay Tagging Technique

213

Stirling machine operating experience  

Science Conference Proceedings (OSTI)

Numerous Stirling machines have been built and operated, but the operating experience of these machines is not well known. It is important to examine this operating experience in detail, because it largely substantiates the claim that stirling machines are capable of reliable and lengthy operating lives. The amount of data that exists is impressive, considering that many of the machines that have been built are developmental machines intended to show proof of concept, and are not expected to operate for lengthy periods of time. Some Stirling machines (typically free-piston machines) achieve long life through non-contact bearings, while other Stirling machines (typically kinematic) have achieved long operating lives through regular seal and bearing replacements. In addition to engine and system testing, life testing of critical components is also considered. The record in this paper is not complete, due to the reluctance of some organizations to release operational data and because several organizations were not contacted. The authors intend to repeat this assessment in three years, hoping for even greater participation.

Ross, B. [Stirling Technology Co., Richland, WA (United States); Dudenhoefer, J.E. [Lewis Research Center, Cleveland, OH (United States)

1994-09-01T23:59:59.000Z

214

Recent radon transient experiments  

DOE Green Energy (OSTI)

Radon transient analysis is being developed as a method complementary to pressure transient analysis for evaluation of geothermal reservoirs. The method is based on the observations of Stoker and Kruger (1975) that radon concentration in produced geothermal fluids is related to geothermal reservoir type, production flow rates, and time. Stoker and Kruger showed that radon concentrations were markedly different in vapor-dominated and liquid-dominated systems, and varied not only among wells of different flow rate in an individual reservoir, but also varied timewise in individual wells. The potential uses of radon as an internal tracer for geothermal reservoir engineering were reviewed by Kruger, Stoker, and Umana (1977). Also included were results of the first transient test performed with rapid flow rate change in a vapor-dominated field. The results of the next four radon-flow rate transient experiments were summarized by Kruger (1978) in which effects of well interference and startup production in a new well were demonstrated. Four of these first five radon transient experiments have been carried out in vapor-dominated reservoirs at The Geysers in California and Serrazzano in Italy. The systematics of the transients of radon concentration following abrupt changes in flow rate is being evaluated by Warren and Kruger (1978). The fifth test was at the HGP-A well in Hawaii, the first transient test in a liquid-dominated reservoir. Three additional radon transient tests have been carried out, each in a different type of geothermal resource. The first test was in a petrothermal resource, the reservoir created by hydraulic fracturing by LASL in the hot, dry rock experiment in New Mexico. The results of this first 75-day production test of continuous forced circulation, during January-April, 1978, are given by Tester, et al (1978). The results of the radon concentration measurements made during this test are summarized by Kruger, Cederberg, and Semprini (1978). The second test was a second transient test at the HGP-A well in the liquid-dominated reservoir at Pohoiki, Hawaii, and the third test was a second transient test at the Grottitana well in the Serrazzano field at Larderello, Italy. The general observations of these tests are listed in Table 1. A summary of each of these three tests follows. During the LASL hot dry rock flow test, five samples of recirculating production fluid were obtained by wellhead sampling. Two samples were obtained during the following shutin and venting periods of the test, and one sample of makeup water was analyzed during the test.

Kruger, P.; Semprini, L.; Cederberg, G.; Macias, L.

1978-01-01T23:59:59.000Z

215

Experience Report for WOPR  

SciTech Connect

One of the purposes of the SQA effort at LLNL is to attempt to determine the 'goodness' of the research codes used for various scientific applications. Typically these are two and three dimensional multi-physics simulation and modeling codes. These legacy research codes are used for applciations such as atmospheric dispersion modeling and analysis and prediction of the performance of engineered systems. These codes are continually subjected to automated regression test suites consisting of verified and validated expected results. Code is managed in repositories. Experience level of developers is high in the knowledge domain, platforms, and languages used. Code size of the multi-physics code used in this study was 578,242 lines excluding comment and blank lines or 5538.7 function points. Languages were 70% C++, 20% C, and 10% Fortran. The code has 130 users and a development team of 14 and an embedded SQE. The code has achieved 100% prime feature test coverage, 73.6% functional test coverage, and 71.5% statement test coverage. The average cyclomatic complexity of the code was 6.25. The codes have evolved over 10 years. Research codes are challenging because there is a desire to balance agility with discipline as well as compliance with DOE standards. Agility is important to allow experimentation with new algorithms and addition of the latest physics features. Discipline is important to increase the quality of the codes. Automation of processes and defect prevention/detection are deployed throughout the software development process. Since resarch codes are a small segment of the software industry, not much information exists in terms of reliability studies on these types of codes. This paper describes attempts to determine the goodness of these research codes. Goodness defined as both correctness of the codes and their fault densities. Correctness is determined by user interviews, peer review; feature based automated testing, and coverage measurement. This paper focuses on the fault density aspect of goodness and reliability of the codes in particular. The approach taken was to use multiple fault density prediction methods and compare results to actual experimentation and other industry studies on fault density. As a result of the predictions and experiments our confidence in the prediction methods was increased and our confidence in the goodness of the code from a fault density perspective was given more context. A large unintended benefit of these experiments was to find defects hidden for years in the codes when using the Monte Carlo reliability testing results to develop heuristic based bug driven tests.

Pope, G

2010-04-06T23:59:59.000Z

216

Research Experience Bibliography  

NLE Websites -- All DOE Office Websites (Extended Search)

Research Programs Research Programs Found in Profiling Teacher Research Participation Programs: An Approach to Formative Evaluation, The National Center for Improving Science Edcuation of the NETWORK, Inc. with support from the United States Department of Energy, November, 1993. Gottfried, S.: Brown, C.; Markovits, P.; and Changar, J. Undated. "Scientific Work Experience Programs for Science Teachers: A Focus on Research-Related Internships." Unpublished Manuscript. The authors found five factors related to effective implementation of a research internship program: (1) mentors, project staff, and teachers share goals and expectations, have open, frequent communication; (2) teachers have articulated project or research assignment; (3) curriculum development component facilitated by expert, focus on process rather than product; (4)

217

Assessment of Project Management Experience  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Assessment of Project Management Experience PMCDP for CEG Competency 1.12.2 Assessment of Project Management Experience PMCDP for CEG Competency 1.12.2 Applicant Name: Applicant Supervisor: Date (mm/dd/yyyy): Directions: Step 1: Use this template to show project management experience for CEG competency 1.12.2. Rate your experience (0 - 5) in the following project management related activities using the scale below. Step 2: Sign the completed form and have your supervisor review and sign it. Step 3: Once approved by your supervisor, submit the form as part of your Level I certification package. Note: Project management experience is distinguished from FPD experience and applies to general project management activities and experience. Positions that do not count towards experience in project management include: program manager, property manager, health, safety and security (HSS) positions, and

218

The German Front Experiment 1987  

Science Conference Proceedings (OSTI)

The German Front Experiment, 1987 (GFE87) is a field experiment using aircraft, radar, surface, and upper-air observations to determine the influence of the European Alps on cold fronts. Measurements are concentrated in the Rhine Valley and in ...

Klaus P. Hoinka; Hans Volkert

1987-11-01T23:59:59.000Z

219

(Acidic deposition and the environment)  

Science Conference Proceedings (OSTI)

The travelers presented several papers at the Fourth International Conference on Acidic Deposition. These covered the following topics: atmospheric chemistry and deposition of airborne nitrogen compounds, soil solution chemistry in high-elevation spruce forests, and forest throughfall measurements for estimating total sulfur deposition to ecosystems. In addition, S. E. Lindberg was invited to organize and chair a conference session on Throughfall and Stemflow Experiments, and to present an invited lecture on Atmospheric Deposition and Canopy Interactions of Metals and Nitrogen in Forest Ecosystems: The Influence of Global Change'' at the 110th Anniversary Celebration of the Free University of Amsterdam.

Garten, C.T.; Lindberg, S.E.; Van Miegroet, H.

1990-10-24T23:59:59.000Z

220

Optimal designs for conjoint experiments  

Science Conference Proceedings (OSTI)

In conjoint experiments, each respondent receives a set of profiles to rate. Sometimes, the profiles are expensive prototypes that respondents have to test before rating them. Designing these experiments involves determining how many and which profiles ... Keywords: Conjoint experiments, D-optimality, Optimal block design, Optimal block sizes, Prototype testing

Roselinde Kessels; Peter Goos; Martina Vandebroek

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Determination of the Lower Temperature Limit of Void Swelling of Stainless Steels at Relatively Low Displacement Rates  

DOE Green Energy (OSTI)

An issue of current interest to PWRs is the possibility that void swelling of austenitic near-core internal components may exert some deleterious effect on component functionality, particularly during extended operation to 60 years. A similar concern has also been raised for water-cooled fusion devices. One question of particular interest is the range of temperature over which void swelling can occur, since the internal components experience temperatures from ~290 to perhaps as high as 390 degrees C in some limited locations. This question was addressed using a flow restrictor component from the low-flux breeder zone of the BN-350 fast reactor in Kazakhstan. This component was constructed of annealed 12X18H10T, an alloy similar to AISI 321 which is used in Russian reactors for applications where AISI 304L would be used in comparable Western and Japanese reactors. Extensive sectioning to produce 114 separate specimens, followed by examination of the radiation-induced microstructure showed that void swelling in the range of temperatures and dpa rates of PWR interest occurs down to ~305 degrees C. At 330 degrees C the swelling reached ~1% at 20 dpa. Comparison of these data with other published results from Russian LWR reactors at <10 dpa confirms that the lowest temperature that stainless steels can begin swelling appears to be ~300 degrees C. Since fusion and PWR spectra generate similar levels of hydrogen and helium, it is expected that these conclusions are also application to fusion devices operating at comparable dpa rates.

Porollo, S. I.; Konobeev, Yu V.; Dvoriashin, Alexander M.; Krigan, V. M.; Garner, Francis A.

2002-03-31T23:59:59.000Z

222

Operating experience at CEBAF  

Science Conference Proceedings (OSTI)

CEBAF, the Continuous Electron Beam Accelerator Facility, is a 5-pass, recirculating, superconducting rf linac designed to provide exceptional beam quality at 4 GeV up to 200 {mu}A CW. It is made up of an injector, two 400-MeV linacs, and 9 recirculation arcs having a total beamline length of more than 4.5 km. On Nov. 5, 1995, CEBAF delivered a 4 GeV, 25-{mu}A CW electron beam to the first of 3 experimental halls and the experimental physics program was started 10 days later. Accelerator availability during the first month of the experimental run exceeded 75%. Beam properties measured in the experimental hall to date are a one sigma momentum spread of 5{times}10{sup -5} and an rms emittance of 0.2 nanometer-radians, better than design specification. CW beam has been provided from all 5 passes at 800 MeV intervals. Outstanding performance of the superconducting linacs suggests a machine energy upgrade to 6 GeV in the near term with eventual machine operation at 8-10 GeV. Results from commissioning and operations experience since the last conference are presented.

Legg, R.

1996-07-01T23:59:59.000Z

223

Nuclear Reactor Severe Accident Experiments  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Reactor Severe Accident Experiments Nuclear Reactor Severe Accident Experiments Capabilities Engineering Experimentation Reactor Safety Testing and Analysis Overview Nuclear Reactor Severe Accident Experiments MAX NSTF SNAKE Aerosol Experiments System Components Laser Applications Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Nuclear Reactor Severe Accident Experiments 1 2 3 4 5 6 7 We perform experiments simulating reactor core melt phenomena in which molten core debris ("corium") erodes the concrete floor of a containment building. This occurred during the Fukushima nuclear power plant accident though the extent of concrete damage is yet unknown. This video shows the top view of a churning molten pool of uranium oxide at 2000°C (3600°F) seen during an experiment at Argonne. Corium behaves much like lava.

224

Experiment Hazard Class 11 - Hydrogen  

NLE Websites -- All DOE Office Websites (Extended Search)

1 - Hydrogen 1 - Hydrogen Applicability This hazard classification applies to all experiments and processes involving the use of gaseous hydrogen. This class includes work performed in the Experiment Hall Beamline Stations and any preparatory/setup/testing work performed in the LOM laboratories. Other hazard controls such as fire protection and life safety regulations may apply to experiments of this hazard class. A summary of controls for hydrogen use is available in the hydrogen summary document. Experiment Category Experiments involving previously reviewed hazard controls qualify for categorized as medium risk. Experiments involving new equipment or modified hazard control schemes are categorized as high risk. Experiment Hazard Control Verification Statements Engineered Controls - Applicable controls for storage and use of

225

GNF2 Operating Experience  

Science Conference Proceedings (OSTI)

GNF's latest generation fuel product, GNF2, is designed to deliver improved nuclear efficiency, higher bundle and cycle energy capability, and more operational flexibility. But along with high performance, our customers face a growing need for absolute fuel reliability. This is driven by a general sense in the industry that LWR fuel reliability has plateaued. Too many plants are operating with fuel leakers, and the impact on plant operations and operator focus is unacceptable. The industry has responded by implementing an INPO-coordinated program aimed at achieving leaker-free reliability by 2010. One focus area of the program is the relationship between fuel performance (i.e., duty) and reliability. The industry recognizes that the right balance between performance and problem-free fuel reliability is critical. In the development of GNF2, GNF understood the requirement for a balanced solution and utilized a product development and introduction strategy that specifically addressed reliability: evolutionary design features supported by an extensive experience base; thoroughly tested components; and defense-in-depth mitigation of all identified failure mechanisms. The final proof test that the balance has been achieved is the application of the design, initially through lead use assemblies (LUAs), in a variety of plants that reflect the diversity of the BWR fleet. Regular detailed surveillance of these bundles provides the verification that the proper balance between performance and reliability has been achieved. GNF currently has GNF2 lead use assemblies operating in five plants. Included are plants that have implemented extended power up-rates, plants on one and two-year operating cycles, and plants with and without NobleChem{sup TM} and zinc injection. The leading plant has undergone three pool-side inspections outages to date. This paper reviews the actions taken to insure GNF2's reliability, and the lead use assembly surveillance data accumulated to date to validate the adequacy/expected behavior of the design. (authors)

Schardt, John [GE Energy, Nuclear, 3901 Castle Hayne Road, Wilmington, NC 28402 (United States)

2007-07-01T23:59:59.000Z

226

Tracking in Antiproton Annihilation Experiments  

E-Print Network (OSTI)

A major ingredient of the planned new accelerator complex FAIR, to be constructed at the GSI, Darmstadt, Germany, is the availability of antiproton beams with high quality and intensity. Among the experiments which will make use of this opportunity is PANDA, a dedicated experiment to study antiproton annihilations on nucleons and nuclei. This article gives an overview on the foreseen techniques to perform charged particle tracking in the high rate environment of this experiment.

O. N. Hartmann

2006-02-02T23:59:59.000Z

227

The PICASSO Dark Matter Experiment  

Science Conference Proceedings (OSTI)

The PICASSO experiment searches for cold dark matter through the direct detection of weakly interacting massive particles (WIMPs) via their spin?dependent interactions with fluorine at SNOLAB

Ubi Wichoski; The PICASSO Collaboration

2011-01-01T23:59:59.000Z

228

Experiment Hazard Class 9 - Magnets  

NLE Websites -- All DOE Office Websites (Extended Search)

hazard classification applies to all experiments involving magnets, magnetic fields, and electric fields. Other hazard classifications such as electrical safety and their...

229

Window Functions for CMB Experiments  

E-Print Network (OSTI)

We discuss the applicability and derivation of window functions for cosmic microwave background experiments on large and intermediate angular scales. These window functions describe the response of the experiment to power in a particular mode of the fluctuation spectrum. We give general formulae, illustrated with specific examples, for the most common observing strategies.

Martin White; Mark Srednicki

1994-02-15T23:59:59.000Z

230

Analysis of Emissions Calculators for the National Center of Excellence on Displaced Emission Reductions (CEDER)- 2008 Annual Report to the United States Environmental Protection Agency  

E-Print Network (OSTI)

In August 2004, the USEPA issued guidance on quantifying the air emission benefits from electric sector energy efficiency and renewable energy. Because there was no clear best strategy, the EPAs guidance provided a framework and the basic requirements needed to demonstrate air quality improvements or emission reductions with adequate certainty to be incorporated into a State Implementation Plan (SIP) for achieving or maintaining National Ambient Air Quality Standards (NAAQS). The Energy Systems Laboratory, with guidance from both the US EPA and the Texas Commission on Environmental Quality (TCEQ), developed the first comprehensive engineering toolkit and database that satisfies the EPA guidelines. The value of this unique tool was demonstrated in 2005 when the Energy Systems Laboratory (ESL), at the request of the TCEQ, used it to develop integrated emissions estimates for all state agencies participating in the Texas Emissions Reduction Plan (TERP). Building on this expertise, the US EPA has established a National Center of Excellence on Displaced Emission Reductions (CEDER) at the Energy Systems Laboratory to research and gather the state-of-the-art on air pollution quantification techniques for Energy Efficiency / Renewable Energy (EE/RE) projects; provide technical support and customized analysis for state and local agencies seeking to estimate the environmental benefits from clean energy policies and programs; and to document how a user-friendly tool, based on e2Calc, can be used by clients to fulfill their needs to quantify emission reductions from energy efficiency and renewable energy measures. The Energy Systems Laboratory, in fulfillment of its responsibilities, submits this annual report, Analysis of Emissions Calculators for National Center of Excellence on Displaced Emission Reductions (CEDER) to the United States Environmental Protection Agency. The report is organized in several deliverables: Summary Report, which details the progress of tasks; Appendix, which shows the survey documentation, screenshots of emissions calculators, and screenshots for the test of each online emissions calculator. The three main tasks that have been performed in 2008 are as follows: Task 1: Review existing emissions calculators from U.S. Department of Energys EE/RE Building Energy Software Tools Directory. Task 2: Review and test currently available emissions calculators from the World Wide Web. Task 3: Assistance with the estimation of Annual Reductions of NOx Emissions in ERCOT for the HB3693 Electricity Savings Goals.

Yazdani, B.; Culp, C.; Haberl, J.; Baltazar, J. C.; Do, S. L.

2009-02-01T23:59:59.000Z

231

Extrinsic fiber optic displacement sensors and displacement sensing systems  

DOE Patents (OSTI)

An extrinsic Fizeau fiber optic sensor comprises a single-mode fiber, used as an input/output fiber, and a multimode fiber, used purely as a reflector, to form an air gap within a silica tube that acts as a Fizeau cavity. The Fresnel reflection from the glass/air interface at the front of the air gap (reference reflection) and the reflection from the air/glass interface at the far end of the air gap (sensing reflection) interfere in the input/output fiber. The two fibers are allowed to move in the silica tube, and changes in the air gap length cause changes in the phase difference between the reference reflection and the sensing reflection. This phase difference is observed as changes in intensity of the light monitored at the output arm of a fused biconical tapered coupler. The extrinsic Fizeau fiber optic sensor behaves identically whether it is surface mounted or embedded, which is unique to the extrinsic sensor in contrast to intrinsic Fabry-Perot sensors. The sensor may be modified to provide a quadrature phase shift extrinsic Fizeau fiber optic sensor for the detection of both the amplitude and the relative polarity of dynamically varying strain. The quadrature light signals may be generated by either mechanical or optical means. A plurality of the extrinsic sensors may connected in cascade and multiplexed to allow monitoring by a single analyzer.

Murphy, Kent A. (Roanoke, VA); Gunther, Michael F. (Blacksburg, VA); Vengsarkar, Ashish M. (Scotch Plains, NJ); Claus, Richard O. (Christiansburg, VA)

1994-01-01T23:59:59.000Z

232

Aging in Displacement: Assessing Health Status of Displaced Older Adults  

E-Print Network (OSTI)

aspects of the field work and field logistics: UNHCR-Tbilisi, Georgian Centre for Psychosocial and Medical moving to the region bordering Abkhazia and to the Georgian capital of Tbilisi. Of the nearly 270

Scharfstein, Daniel

233

CIIR Experiments for TREC Legal 2007  

Science Conference Proceedings (OSTI)

... Four baseline experiments using standard In- dri retrieval facilities and simple query formula- tion techniques and two experiments using more ...

2008-02-05T23:59:59.000Z

234

Abstract: Experiment Design for Scientists and Engineers  

Science Conference Proceedings (OSTI)

Education and Training: Experiment Design for Engineers and ... Experiment design is a systematic, rigorous, data-based approach to scientific ...

2013-10-30T23:59:59.000Z

235

Disposition Schedule: Human Radiation Experiments | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Schedule: Human Radiation Experiments Disposition Schedule: Human Radiation Experiments This database contains information on records collections related to human radiation...

236

Numerical analyses of the G-tunnel mining evaluations experiment  

SciTech Connect

The displacements resulting from excavation of a drift in layered tuffs at Rainier Mesa, Nevada, have been analyzed. Also, a series of two-dimensional finite-element analyses of the excavation sequence using linear elastic and nonlinear compliant joint material models has been made. Measured displacements were on the order of millimeters and show vertical and horizontal closure. Calculated displacements are also on the order of millimeters; vertical and horizontal closure is predicted in some of the analyses performed. 5 refs., 3 figs., 3 tabs.

Bauer, S.J.; Costin, L.S. [Sandia National Labs., Albuquerque, NM (USA); Johnson, R.L. [New Mexico Univ., Albuquerque, NM (USA)

1990-05-01T23:59:59.000Z

237

The FIFE Data Publication Experiment  

Science Conference Proceedings (OSTI)

The First ISLSCP Field Experiment (FIFE) provided an opportunity to test the concept of data publication for long-term access to valuable scientific data. In analogy with the procedures used in research publication, the FIFE Information System ...

Donald E. Strebel; David R. Landis; K. Fred Huemmrich; Jeffrey A. Newcomer; Blanche W. Meeson

1998-04-01T23:59:59.000Z

238

Computer Experiments in Finite Algebra  

E-Print Network (OSTI)

The experiments described here concern an initial design for a computer system specifically for the handling of finite groups, rings, fields, semigroups, and vector spaces. The usefulness of such a system was discussed in ...

Maurer, W.D.

1965-06-01T23:59:59.000Z

239

LANL | Physics | Dynamic Plutonium Experiments  

NLE Websites -- All DOE Office Websites (Extended Search)

Dynamic plutonium experiments Dynamic plutonium experiments Since the end of nuclear testing the nation has had to rely on sophisticated computer models to ensure the safety and reliability of the nuclear weapons stockpile. This program is known as science-based stockpile stewardship. Despite possessing the world's fastest computers and most advanced modeling capability, the behavior of materials under dynamic loads that occur in a nuclear weapon are difficult to accurately model. The Dynamic Plutonium experimental program carries out experiments at the Nevada National Security Site on plutonium driven by high explosives. These experiments are needed to measure and understand the behavior of plutonium under extreme conditions. Physics Division has unique capabilities in high-speed x-ray imaging and velocimetry (measuring the

240

San Antonio Mountain Experiment (SAMEX)  

Science Conference Proceedings (OSTI)

The San Antonio Mountain Experiment (SAMEX) involves a 3325 m. conically shaped, isolated mountain in north-central New Mexico where hourly observations of temperature, relative humidity, wind speed, wind direction, and precipitation are being ...

Morris H. McCutchan; Douglas G. Fox; R. William Furman

1982-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Maintenance FUSION IGNITION RESEARCH EXPERIMENT  

E-Print Network (OSTI)

to refine the system details, interfaces and the requirements for remote handling. Table 1. FIRE RadialInsulation Enclosure Remote Maintenance Module FUSION IGNITION RESEARCH EXPERIMENT SYSTEM objectives and subsystem requirements in an arrangement that allows remote maintenance of in

242

Essays in macroeconomics and experiments  

E-Print Network (OSTI)

This dissertation consists of four chapters on empirical and experimental macroeconomics and other experimental topics. Chapter 1 uses a laboratory experiment to test the predictions of a dynamic global game designed to ...

Shurchkov, Olga

2008-01-01T23:59:59.000Z

243

Crucial Experiments in Climate Science  

Science Conference Proceedings (OSTI)

This article discusses the interplay between computational experiments and scientific advancement in dynamical meteorology and climate dynamics. In doing so, the emphasis is on the dual role of computations in prediction and experimentation, ...

A. Navarra; J. L. Kinter III; J. Tribbia

2010-03-01T23:59:59.000Z

244

Progress in Compact Toroid Experiments  

SciTech Connect

The term "compact toroids" as used here means spherical tokamaks, spheromaks, and field reversed configurations, but not reversed field pinches. There are about 17 compact toroid experiments under construction or operating, with approximate parameters listed in Table 1.

Dolan, Thomas James

2002-09-01T23:59:59.000Z

245

Tokamak Fusion Test Reactor experiment  

SciTech Connect

A brief review of the TFTR is given in terms of the physical size of the experiment in relation to existing and future tokamaks. Some break-even criteria are mentioned. (MOW)

Furth, H.P.

1976-01-01T23:59:59.000Z

246

Manhattan Project: Fast Neutron Experiment  

Office of Scientific and Technical Information (OSTI)

An experiment to determine the cross section of uranium-235 for fast neutrons. The target is the small pile of cubes of uranium hydride. The uranium target is surrounded by larger...

247

Experiments on Cryogenic Complex Plasma  

SciTech Connect

Experiments on a cryogenic complex plasma have been performed. Preliminary experiments include production of a plasma in a liquid helium or in a cryogenic helium gas by a pulsed discharge. The extended production of a plasma has been realized in a vapor of liquid helium or in a cryogenic helium gas by rf discharge. The charge of dust particles injected in such a plasma has been studied in detail.

Ishihara, O.; Sekine, W.; Kubota, J.; Uotani, N.; Chikasue, M.; Shindo, M. [Faculty of Engineering, Yokohama National University Yokohama, 240-8501 (Japan)

2009-11-10T23:59:59.000Z

248

Coupled diffusional/displacive transformations  

E-Print Network (OSTI)

.~...., 0 OJII <- OM -1G1d /J mole Figure 2.2: Illustration of the dependence of interfacial composition x I on the interfacial dissipation Gid for a Fe-0.2C wt.% transformed at 486 QC . Bl and B2 are the coefficients...

Mujahid, Shafiq Ahmad

249

Embedded Capacitive Displacement Sensor for ...  

Science Conference Proceedings (OSTI)

... Jae Myung Yoo received the MS and Ph.D. degrees in mechanical engineering from the Chung Ang University, Seoul, Korea, in 2000 and 2006 ...

2011-06-16T23:59:59.000Z

250

Retail Choice Experiments: Comparing Early-AdopterExperience  

SciTech Connect

This paper reviews the experience with retail choice of non-residential electricity customers during the period from early 1998 through the first few months of 2000. Key findings include: (1) customers in California received a significantly smaller discount from utility tariffs than customers in other competitive markets; (2) this sample of large commercial/industrial customers believed they were benefiting significantly more from commodity savings from contracts with retail electricity service providers (RESP) than from value-added services; and,(3) market rules appear to be critical to customer experiences with retail competition, yet the relationship between market rules and market development is inadequately understood.

Golove, William

2003-03-01T23:59:59.000Z

251

Enhanced Remedial Amendment Delivery through Fluid Viscosity Modifications: Experiments and numerical simulations  

SciTech Connect

Abstract Heterogeneity is often encountered in subsurface contamination characterization and remediation. Low-permeability zones are typically bypassed when remedial fluids are injected into subsurface heterogeneous aquifer systems. Therefore, contaminants in the bypassed areas may not be contacted by the amendments in the remedial fluid, which may significantly prolong the remediation operations. Laboratory experiments and numerical studies have been conducted to develop the Mobility-Controlled Flood (MCF) technology for subsurface remediation and to demonstrate the capability of this technology in enhancing the remedial amendments delivery to the lower permeability zones in heterogeneous systems. Xanthan gum, a bio-polymer, was used to modify the viscosity of the amendment-containing remedial solutions. Sodium mono-phosphate and surfactant were the remedial amendment used in this work. The enhanced delivery of the amendments was demonstrated in two-dimensional (2-D) flow cell experiments, packed with heterogeneous systems. The impact of polymer concentration, fluid injection rate, and permeability contract in the heterogeneous systems has been studied. The Subsurface Transport over Multiple Phases (STOMP) simulator was modified to include polymer-induced shear thinning effects. Shear rates of polymer solutions were computed from pore-water velocities using a relationship proposed in the literature. Viscosity data were subsequently obtained from empirical viscosity-shear rate relationships derived from laboratory data. The experimental and simulation results clearly show that the MCF technology is capable of enhancing the delivery of remedial amendments to subsurface lower permeability zones. The enhanced delivery significantly improved the NAPL removal from these zones and the sweeping efficiency on a heterogeneous system was remarkably increased when a polymer fluid was applied. MCF technology is also able to stabilize the fluid displacing front when there is a density difference between the fluids. The modified STOMP simulator was able to predict the experimental observed fluid displacing behavior. The simulator may be used to predict the subsurface remediation performance when a shear thinning fluid is used to remediate a heterogeneous system.

Zhong, Lirong; Oostrom, Martinus; Wietsma, Thomas W.; Covert, Matthew A.

2008-07-29T23:59:59.000Z

252

Carbon nanotubes as piezoresistive microelectromechanical sensors: Theory and experiment  

E-Print Network (OSTI)

Carbon-nanotube (CNT) -based strain sensors have the potential to overcome some of the limitations in small-scale force/displacement sensing technologies due to their small size and high sensitivity to strain. A better ...

Culpepper, Martin Luther

253

Mass modification experiment definition study  

SciTech Connect

This report summarizes an attempt to find an experiment that would test the Haisch, Rueda, and Puthoff (HRP) conjecture that the mass and inertia of a body are induced effects brought about by changes in the quantum-fluctuation energy of the vacuum. It was not possible, however, to identify a definitive experiment. But, it was possible to identify an experiment that might be able to prove or disprove that the inertial mass of a body can be altered by making changes in the vacuum surrounding the body. Other experiments, which do not involve mass modification, but which teach something about the vacuum, were also defined and included in a ranked list of experiments. This report also contains an annotated bibliography. An interesting point raised by this paper is this: We can estimate the `vacuum energy density` to be 10{sup 108} J/cc, and the vacuum mass density to be 10{sup 94} g/cc, much higher numbers than those associated with nuclear energy. Although the field of `electromagnetic fluctuation energy of the vacuum` is admittedly an esoteric, little-understood field, it does seem to have definite potential as an energy source. 47 refs.

Forward, R.L. [Forward Unlimited, Malibu, CA (United States)

1996-12-31T23:59:59.000Z

254

Optimizing New Dark Energy Experiments  

SciTech Connect

Next generation Stage IV dark energy experiments under design during this grant, and now under construction, will enable the determination of the properties of dark energy and dark matter to unprecedented precision using multiple complementary probes. The most pressing challenge in these experiments is the characterization and understanding of the systematic errors present within any given experimental configuration and the resulting impact on the accuracy of our constraints on dark energy physics. The DETF and the P5 panel in their reports recommended Expanded support for ancillary measurements required for the long-term program and for projects that will improve our understanding and reduction of the dominant systematic measurement errors. Looking forward to the next generation Stage IV experiments we have developed a program to address the most important potential systematic errors within these experiments. Using data from current facilities it has been feasible and timely to undertake a detailed investigation of the systematic errors. In this DOE grant we studied of the source and impact of the dominant systematic effects in dark energy measurements, and developed new analysis tools and techniques to minimize their impact. Progress under this grant is briefly reviewed in this technical report. This work was a necessary precursor to the coming generations of wide-deep probes of the nature of dark energy and dark matter. The research has already had an impact on improving the efficiencies of all Stage III and IV dark energy experiments.

Tyson, J. Anthony [University of California, Davis

2013-08-26T23:59:59.000Z

255

Thermal and thermomechanical data from in situ heater experiments at Stripa, Sweden. Technical Information Report No. 29  

Science Conference Proceedings (OSTI)

Heater experiments were conducted in a granite body adjacent to a recently abandoned iron ore mine at Stripa, Sweden, to investigate the response of a hard rock mass to thermal loading. Heating commenced in June, 1978 and lasted for approximately one year. The rock was heavily instrumented to measure the temperature, displacement, and stress fields. Monitoring of the rock response continued for half a year after the heaters were deactivated. In-situ post-experiment calibrations of instrumentation were completed by June 1980. The enormous data base (approximately 50 million measurements), recorded by a computer-based data acquisition system, has now been structured, verified, and converted to engineering units. This report describes the types of data available and the procedures used for data acquisition, transfer, encoding-decoding, reorganization, storage, processing, and verification. Information is given on data structure and format and how potential users can access the computer-readable data.

Chan, T.; Binnall, E.; Nelson, P.; Stolzman, R.; Wan, O.; Weaver, C.; Ang, K.; Braley, J.; McEvoy, M.

1980-09-01T23:59:59.000Z

256

Maine Yankee Decommissioning - Experience Report: Detailed Experiences 1997-2004  

Science Conference Proceedings (OSTI)

Several U.S. nuclear power plants began the decommissioning process in the 1990s. Based on current information, it will be several years before the next group of plant licenses expires, and the plants begin decommissioning. This report provides detailed information on the decommissioning of one power reactor, Maine Yankee, in order to document their experience for future plants.

2005-05-04T23:59:59.000Z

257

UNIRIB Participant Experiences: Ron Goans  

NLE Websites -- All DOE Office Websites (Extended Search)

Ron Goans Ron Goans Ron Goans Ron Goans Ron Goans is a graduate research assistant working on the thesis component of his master's degree in physics while performing experiments at the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL). His thesis research specifically relates to the field of radioactive ion beam development. The purpose of radioactive ion beam development is to study and produce high-intensity, high-purity beams of radioactive nuclides. These beams are used by nuclear physicists to study the structure of short-lived nuclei. Below is a question and answer dialog about Goans' experience in Oak Ridge. The video featured on the right side of this page also spotlights his experience with the University Radioactive Ion Beam (UNIRIB)

258

D and D Operational Experience  

SciTech Connect

This paper describes the operational experience gained from more than 25 million man-hours of Decontamination and Decommissioning (D and D) work on both Department of Energy sites and commercial nuclear facilities in the United States. Nuclear D and D activities encompass some of the most hazardous activities imaginable - protecting workers from a huge range and endless combinations of industrial safety, radiological, nuclear safety, and industrial hygiene issues which challenges managers and safety professionals. Performing D and D activities safely is essential to project success. Managers must ensure that work is properly planned and executed, that hazards are identified and mitigated, and that operational experience is captured and utilized on future projects. Many of the lessons learned directly relate to the principles of behavioral-based safety. Our experience indicates that improved safety performance leads to improved productivity. (authors)

Meyer, K.A.; Smith, C.B. [BNG America, 9781 S. Meridian Blvd., Suite 100, Englewood, CO 80112 (United States)

2006-07-01T23:59:59.000Z

259

Solar neutrino experiments: An update  

Science Conference Proceedings (OSTI)

The situation in solar neutrino physics has changed drastically in the past few years, so that now there are four neutrino experiments in operation, using different methods to look at different regions of the solar neutrino energy spectrum. These experiments are the radiochemical {sup 37}Cl Homestake detector, the realtime Kamiokande detector, and the different forms of radiochemical {sup 71}Ga detectors used in the GALLEX and SAGE projects. It is noteworthy that all of these experiments report a deficit of observed neutrinos relative to the predictions of standard solar models (although in the case of the gallium detectors, the statistical errors are still relatively large). This paper reviews the basic principles of operation of these neutrino detectors, reports their latest results and discusses some theoretical interpretations. The progress of three realtime neutrino detectors that are currently under construction, SuperKamiok, SNO and Borexino, is also discussed.

Hahn, R.L.

1993-12-31T23:59:59.000Z

260

The potential for buoyant displacement gas release events in Tank 241-SY-102 after waste transfer from Tank 241-SY-101  

DOE Green Energy (OSTI)

Tank 241-SY-101 (SY-101) is a double-shell, radioactive waste storage tank with waste that, before the recent transfer and water back-dilution operations, was capable of retaining gas and producing buoyant displacement (BD) gas release events (GREs). Some BD GREs caused gas concentrations in the tank headspace to exceed the lower flammability limit (LFL). A BD GRE occurs when a portion of the nonconvective layer retains enough gas to become buoyant, rises to the waste surface, breaks up, and releases some of its stored gas. The installation of a mixer pump in 1993 successfully mitigated gas retention in the settled solids layer in SY-101 and has since prevented BD GREs. However, operation of the mixer pump over the years caused gas retention in the floating crust layer and a corresponding accelerated waste level growth. The accelerating crust growth trend observed in 1997--98 led to initiation of sequences of waste removal and water back-dilutions in December 1999. Waste is removed from the mixed slurry layer in Tank SY-101 and transferred into Tank 241-Sy-102 (SY-102). Water is then added back to dissolve soluble solids that retain gas. The initial transfer of 89,500 gallons of SY-101 waste, diluted in-line at 0.94:1 by volume with water, to SY-102 was conducted in December 1999. The second transfer of 230,000 gallons of original SY-101 waste, diluted approximately 0.9:1, was completed in January 2000, and the third transfer of 205,500 gallons of original SY-101 waste diluted at 0.9:1 was completed in March 2000.

BE Wells; PE Meyer; G Chen

2000-05-10T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

The Lead Radius Experiment PREX  

SciTech Connect

The proposed PREX experiment at Jefferson Lab will measure the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons at an energy of 850 MeV and a scattering angle of 6 degrees. Since the Z0 boson couples mainly to neutrons, this asymmetry provides a clean measurement of R{sub n} with a projected experimental precision of 1 %. In addition to being a fundamental test of nuclear theory, a precise measurement of R{sub n} pins down the density dependence of the symmetry energy of neutron rich nuclear matter which has impacts on neutron star structure, heavy ion collisions, and atomic parity violation experiments.

Robert Michaels

2006-10-02T23:59:59.000Z

262

A Home Experiment in Elasticity  

E-Print Network (OSTI)

We analyze a simple problem in elasticity: the \\emph{initial} motion of an elastic bar that after being hanged from an end is suddenly released. In a second problem a point mass is attached on the top of the bar. The analytical solutions uncover some unexpected properties, which can be checked, with a digital camera or camcorder, in an alternative setup in which a spring is substituted for the bar. The theoretical model and the experiments are useful to understand the similarities and differences between the elastic properties of bar and spring. Students can take advantage of the home experiments to improve their understanding of elastic waves.

J. M. Aguirregabiria; A. Hernndez; M. Rivas

2006-07-06T23:59:59.000Z

263

Porous media experience applicable to field evaluation for compressed air energy storage  

DOE Green Energy (OSTI)

A survey is presented of porous media field experience that may aid in the development of a compressed air energy storage field demonstration. Work done at PNL and experience of other groups and related industries is reviewed. An overall view of porous media experience in the underground storage of fluids is presented. CAES experience consists of site evaluation and selection processes used by groups in California, Kansas, and Indiana. Reservoir design and field evaluation of example sites are reported. The studies raised questions about compatibility with depleted oil and gas reservoirs, storage space rights, and compressed air regulations. Related experience embraces technologies of natural gas, thermal energy, and geothermal and hydrogen storage. Natural gas storage technology lends the most toward compressed air storage development, keeping in mind the respective differences between stored fluids, physical conditions, and cycling frequencies. Both fluids are injected under pressure into an aquifer to form a storage bubble confined between a suitable caprock structure and partially displaced ground water. State-of-the-art information is summarized as the necessary foundation material for field planning. Preliminary design criteria are given as recommendations for basic reservoir characteristics. These include geometric dimensions and storage matrix properties such as permeability. Suggested ranges are given for injection air temperature and reservoir pressure. The second step in developmental research is numerical modeling. Results have aided preliminary design by analyzing injection effects upon reservoir pressure, temperature and humidity profiles. Results are reported from laboratory experiments on candidate sandstones and caprocks. Conclusions are drawn, but further verification must be done in the field.

Allen, R.D.; Gutknecht, P.J.

1980-06-01T23:59:59.000Z

264

Economics of quality of experience  

Science Conference Proceedings (OSTI)

While the recent strong increase of interest in Quality of Experience both in industry and academia has managed to place the end user again into the center of service quality evaluation, corresponding economic implications have not received similar attention ... Keywords: WQL hypothesis, Weber-Fechner law, charging for QoE, telecommunication ecosystem, utility function

Peter Reichl; Bruno Tuffin; Patrick Maill

2012-01-01T23:59:59.000Z

265

Status of the MEG Experiment  

Science Conference Proceedings (OSTI)

The MEG experiment which searches for ?? e ? decays at the sensitivity level of 10 ?13 is now in its final stage of the preparation. Some data run is expected by the end of the year 2007. The statuses of each detector components are described.

Aki Maki; MEG Group

2008-01-01T23:59:59.000Z

266

Connecticut Yankee Decommissioning Experience Report  

Science Conference Proceedings (OSTI)

Several U.S. nuclear power plants entered decommissioning in the 1990's. Based on current information, the next group of plants whose license will expire will not begin decommissioning for nearly a decade. This report provides detailed information on the decommissioning of one power reactor - Connecticut Yankee, in order to provide their experience for future plants.

2006-11-20T23:59:59.000Z

267

Industrial experience with design patterns  

Science Conference Proceedings (OSTI)

A design pattern is a particular prose form of recording design information such that designs which have worked well in the past can be applied again in similar situations in the future. The availability of a collection of design patterns can help both ... Keywords: best practices, design information recording, design patterns, design reuse, industrial experience, information sharing, software architecture documentation, software reusability, system documentation

Kent Beck; Ron Crocker; Gerard Meszaros; John Vlissides; James O. Coplien; Lutz Dominick; Frances Paulisch

1996-05-01T23:59:59.000Z

268

The MAXIMA and MAXIPOL experiments  

Science Conference Proceedings (OSTI)

MAXIMA is a balloon-based bolometric experiment to measure the temperature anisotropy of the CMB over spatial frequency range 36?l?1235. The MAXIMA-1 flight produced a 124 square degree temperature anisotropy map with a beam diameter of 10 arcmin. These data have been used to produce a power spectrum which is in excellent agreement with data from BOOMERANG and DASI

P. L. Richards; M. Abroe; P. Ade; A. Balbi; J. Bock; J. Borrill; A. Boscaleri; J. Collins; P. G. Ferreira; S. Hanany; V. V. Hristov; A. H. Jaffe; B. Johnson; A. T. Lee; T. Matsumu; P. D. Mauskopf; C. B. Netterfield; E. Pascale; B. Rabii; G. F. Smoot; R. Stompor; C. D. Winant; J. H. P. Wu

2002-01-01T23:59:59.000Z

269

Experiment 7: Heat Phase Changes  

E-Print Network (OSTI)

Experiment 7: Heat Phase Changes Matter has 4 phases or states: solid, liquid, gas, and plasma. This lab looks at the phase transitions from solid to liquid to gas. 1. Obtain the following materials: 600mL beaker of ice, thermometer, hot plate, timer. 2. Add a very small amount of water to the ice so

Peterson, Blake R.

270

The Boardman Regional Flux Experiment  

Science Conference Proceedings (OSTI)

A field campaign was carried out near Boardman, Oregon, to study the effects of subgrid-scale variability of sensible-and latent-heat fluxes on surface boundary-layer properties. The experiment involved three U.S. Department of Energy ...

J. C. Doran; J. M. Hubbe; R. R. Kirkham; W. J. Shaw; C. D. Whiteman; F. J. Barnes; D. Cooper; W. Porch; R. L. Coutler; D. R. Cook; R. L. Hart; W. Gao; T. J. Martin; J. D. Shannon; T. L. Crawford; D. D. Baldocchi; R. J. Dobosy; T. P. Meyers; L. Balick; W. A. Dugas; R. Hicks; L. Fritschen; L. Hipps; E. Swiatek; K. E. Kunkel

1992-11-01T23:59:59.000Z

271

The New Zealand Southern Alps Experiment  

Science Conference Proceedings (OSTI)

The Southern Alps Experiment is being mounted to study the influence of New Zealand's Southern Alps on local weather and climate. This paper describes these alpine influences and outlines proposed field and modeling experiments. Experiment goals ...

D. S. Wratt; R. N. Ridley; M. R. Sinclair; H. Larsen; S. M. Thompson; R. Henderson; G. L. Austin; S. G. Bradley; A. Auer; A. P. Sturman; I. Owens; B. Fitzharris; B. F. Ryan; J-F. Gayet

1996-04-01T23:59:59.000Z

272

Design and Analysis of Numerical Experiments  

Science Conference Proceedings (OSTI)

Calculations with numerical models are often referred to as numerical experiments, by analogy to classical laboratory experiments. Usually, many numerical experiments are carried out to determine the response of a numerical model to variations of ...

Kenneth P. Bowman; Jerome Sacks; Yue-Fang Chang

1993-05-01T23:59:59.000Z

273

Dynamic crack initiation toughness : experiments and peridynamic modeling.  

SciTech Connect

This is a dissertation on research conducted studying the dynamic crack initiation toughness of a 4340 steel. Researchers have been conducting experimental testing of dynamic crack initiation toughness, K{sub Ic}, for many years, using many experimental techniques with vastly different trends in the results when reporting K{sub Ic} as a function of loading rate. The dissertation describes a novel experimental technique for measuring K{sub Ic} in metals using the Kolsky bar. The method borrows from improvements made in recent years in traditional Kolsky bar testing by using pulse shaping techniques to ensure a constant loading rate applied to the sample before crack initiation. Dynamic crack initiation measurements were reported on a 4340 steel at two different loading rates. The steel was shown to exhibit a rate dependence, with the recorded values of K{sub Ic} being much higher at the higher loading rate. Using the knowledge of this rate dependence as a motivation in attempting to model the fracture events, a viscoplastic constitutive model was implemented into a peridynamic computational mechanics code. Peridynamics is a newly developed theory in solid mechanics that replaces the classical partial differential equations of motion with integral-differential equations which do not require the existence of spatial derivatives in the displacement field. This allows for the straightforward modeling of unguided crack initiation and growth. To date, peridynamic implementations have used severely restricted constitutive models. This research represents the first implementation of a complex material model and its validation. After showing results comparing deformations to experimental Taylor anvil impact for the viscoplastic material model, a novel failure criterion is introduced to model the dynamic crack initiation toughness experiments. The failure model is based on an energy criterion and uses the K{sub Ic} values recorded experimentally as an input. The failure model is then validated against one class of problems showing good agreement with experimental results.

Foster, John T.

2009-10-01T23:59:59.000Z

274

Former Workers Medical Facilities with Experience Evaluating...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Former Workers Medical Facilities with Experience Evaluating Chronic Beryllium Disease Former Workers Medical Facilities with Experience Evaluating Chronic Beryllium Disease April...

275

Fermilab at Work | Experiments and Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Working Group U.S. Long-Baseline Neutrino Experiment Study U.S. Lattice QCD Very Large Hadron Collider WFIRST Accelerator Experiments FermilabNICADD Photoinjector Laboratory...

276

SLAC National Accelerator Laboratory - LCLS Graphite Experiment...  

NLE Websites -- All DOE Office Websites (Extended Search)

LCLS Graphite Experiment Poses New Questions for Researchers By Glenn Roberts Jr. May 21, 2012 In experiments at SLAC National Accelerator Laboratory, a powerful X-ray laser...

277

Meson Photoproduction Experiments with CLAS  

SciTech Connect

A large part of the experimental program in Hall B of the Jefferson Lab is dedicated to light baryon spectroscopy. Meson photoprodcution experiments are essential part of this program. CEBAF Large Acceptance Spectrometer (CLAS) and availability of circularly and linearly polarized tagged photon beams and frozen spin polarized targets provide unique conditions for this type of experiments. This combination of experimental tools gives a remarkable opportunity to measure double polarization observables for different pseudo-scalar meson photoproduction processes. For the first time, a complete or nearly complete measurement became possible and will facilitate model independent extraction of the reaction amplitude. An overview of the experimental program and its current status together with recent results on double polarization measurements in ?{sup +} photoproduction are presented.

Eugene Pasyuk

2012-12-01T23:59:59.000Z

278

Nuclide-migration field experiments  

Science Conference Proceedings (OSTI)

When considering groundwater flow and radionuclide retention in the complex flow systems that can occur in geologic formations, one has a serious problem in determining if laboratory studies are being performed under conditions appropriate to natural systems. This document is the project plan for a program designed to begin to address these problems. The project is being carried out jointly by the Los Alamos National Laboratory, Sandia National Laboratories, and Argonne National Laboratory. The work has three principal objectives: (1) to develop the experimental, instrumental, and safety techniques necessary to conduct controlled, small-scale radionuclide migration field experiments, including those involving actinides; (2) to use these techniques to define radionuclide migration through rock by performing generic, at-depth experiments under closely monitored conditions; and (3) to determine whether available lithologic, geochemical, and hydrologic properties together with existing or developing transport models are sufficient and appropriate to describe real field conditions.

Erdal, B.R.; Wolfsberg, K.; Johnstone, J.K.; Erickson, K.L.; Friedman, A.M.; Fried, S.; Hines, J.J.

1981-03-01T23:59:59.000Z

279

Human Radiation Experiments: Related Sites  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiment Experiment Related Sites Related Links Home Roadmap What's New Search HREX Multimedia Related Sites Federal DOE DOE Sites & National Laboratories Federal Other The following are organizations which provide related information and links to databases, electronic documents, and servers. FEDERAL - DOE U.S. Department of Energy (DOE) homepage (http://www.doe.gov/)contains information on DOE's Departmental Resources, Programs, Offices, National Labs and other DOE related topics. DOE's Environment, Safety and Health (ES&H) Technical Information Services (TIS) homepage (http://nattie.eh.doe.gov/) is a collection of information services designed to provide safety and health professionals with reliable, accurate and current information to assist them in performing their jobs.

280

UNIRIB Participant Experiences: Cara Jost  

NLE Websites -- All DOE Office Websites (Extended Search)

Cara Jost Cara Jost Cara Jost Cara Jost Cara Jost is a Ph.D. student in chemistry from the University of Mainz in Germany, and is involved with ion source development at the University Radioactive Ion Beam (UNIRIB) consortium as a research scholar. Jost and UNIRIB team members are researching new ways to develop radioactive ion beams for the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory. Below is a question and answer dialog about Jost's experience in Oak Ridge. The video featured on the right side of this page also spotlights Jost's experience with UNIRIB. What is your research focus at UNIRIB? My focus is on chemical reactions in the transfer line of the target-ion source, which can be used to improve the purity of radioactive beams.

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Reactor Internals Segmentation Experience Report  

Science Conference Proceedings (OSTI)

Several U.S. nuclear power plants entered decommissioning in the 1990's. Based on current information, the next group of plants will not begin this process for nearly a decade. This report provides detailed information on projects involving the segmentation of the Reactor Vessel Internal Subassemblies conducted at a number of plants undergoing decommissioning. Utilities have found this task very challenging from both a technological and radiation exposure perspective. This report documents the experience...

2007-07-10T23:59:59.000Z

282

Design of the START experiment  

SciTech Connect

The START experiment (Small Tight Aspect Ratio Tokamak) is a low-budget device under construction that is specifically intended to investigate MHD behavior at extremely tight aspect ratios (as low as R/a-1.2) as well as the effectiveness of a major radius compression technique to produce high toroidal current in such plasmas. The main components of the START assembly are described along with the mode of operation.

Smith, R.T.C. [UKAEA Fusion, Culham UK; Peng, Yueng Kay Martin [ORNL

1989-01-01T23:59:59.000Z

283

Experience Based Seismic Equipment Qualification  

Science Conference Proceedings (OSTI)

This report provides guidelines that can be used to perform an experience-based seismic equipment qualification for verification of seismic adequacy of active electrical and mechanical equipment consistent with requirements of American Society of Civil Engineers (ASCE)-7. The report summarizes what requirements are sufficient to ensure that an item of equipment can perform its intended safety function after a design earthquake. The report also provides additional guidance on ensuring that an item of equi...

2007-12-21T23:59:59.000Z

284

AMIE (ACRF MJO Investigation Experiment)  

NLE Websites -- All DOE Office Websites (Extended Search)

AMIE AMIE (ACRF MJO Investigation Experiment) Planning Meeting AMIE Science Steering Committee Chuck Long, Tony DelGenio, Bill Gustafson, Bob Houze, Mike Jensen, Steve Klein, Ruby Leung, Xaihong Liu, Ed Luke, Peter May, Sally McFarlane, Pat Minnis, Courtney Schumacher, Andy Vogelmann, Yi Wang, Xiaoqing Wu, Shaohong Xie Agenda * Proposal due May 1 !!!!!! * Primary purpose of this meeting is discussions and planning in support of

285

Experiences with 100Gbps Network Applications  

E-Print Network (OSTI)

directory structure. Di- rectories are arranged according to experiments, metadata characteristics, organization

Balman, Mehmet

2013-01-01T23:59:59.000Z

286

NREL: Technology Transfer - NREL Experiments Advance Hydrogen ...  

Recent experiments by National Renewable Energy Laboratory (NREL) researcher Heli Wang, however, ...

287

NIST Experiments Challenge Fundamental Understanding of ...  

Science Conference Proceedings (OSTI)

NIST Experiments Challenge Fundamental Understanding of Electromagnetism. From NIST Tech Beat: November 27, 2012. ...

2012-11-27T23:59:59.000Z

288

AGS experiments: 1990, 1991, 1992. Ninth edition  

SciTech Connect

This report contains a description of the following: AGS Experimental Area - High Energy Physics FY 1993 and Heavy Ion Physics FY 1993; Table of Beam Parameters and Fluxes; Experiment Schedule ``as run``; Proposed 1993 Schedule; A listing of experiments by number; Two-page summaries of each experiment begin here, also ordered by number; Publications of AGS Experiments; and List of AGS Experimenters.

Depken, J.C.

1993-04-01T23:59:59.000Z

289

Deuterium Experiments in the Sustained Spheromak Physics Experiment  

DOE Green Energy (OSTI)

In this paper we report on the results of isotope exchange experiments in the Sustained Spheromak Physics Experiment (SSPX). We have compared {approx}500 deuterium discharges with similar discharges in hydrogen. Typically, we produce plasmas with peak toroidal currents in the range of 0.6 MA, electron temperatures (T{sub e}) of {approx}200 eV and energy confinement times ({tau}{sub E}) of {approx}200 {micro}s. The D{sub 2} fueled discharges show similar results to those with H{sub 2} fueling with no obvious differences in confinement time. Electron temperatures of {approx}200 eV with similar electron densities were observed. Both the deuterium and hydrogen fueled discharges have a calculated thermal conduction below {chi}{sub e}<10 m{sup 2}/s. However, the D{sub 2} fueled discharges had a modest increase in high-Z (titanium) impurity content suggesting an increase of physical sputtering. We find no significant mass scaling effects.

Wood, R; Hill, D N; Hooper, E; McLean, H; Ryutov, D; Woodruff, S

2004-05-24T23:59:59.000Z

290

HFIR Experiment Facilities | ORNL Neutron Sciences  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiment Facilities Experiment Facilities HFIR Experiment Facilities Neutron Scattering Facilities Target Positions Experiment Facilities in the Beryllium Reflector Large Removable Beryllium Facilities Small Removable Beryllium Facilities Control-Rod Access Plug Facilities Small Vertical Experiment Facilities Large Vertical Experiment Facilities Hydraulic Tube Facility Peripheral Target Positions Neutron Activation Analysis (NAA) Laboratory and Pneumatic Tube Facilities Slant Engineering Facilities Gamma Irradiation Facility Quality Assurance Requirements Contact Information Neutron Scattering Facilities The fully instrumented HFIR will eventually include 15 state-of-the-art neutron scattering instruments, seven of which will be designed exclusively for cold neutron experiments, located in a guide hall south of the reactor

291

Experiments with the Dragon Machine  

Science Conference Proceedings (OSTI)

The basic characteristics of a self-sustaining chain reaction were demonstrated with the Chicago Pile in 1943, but it was not until early 1945 that sufficient enriched material became available to experimentally verify fast-neutron cross-sections and the kinetic characteristics of a nuclear chain reaction sustained with prompt neutrons alone. However, the demands of wartime and the rapid decline in effort following the cessation of hostilities often resulted in the failure to fully document the experiments or in the loss of documentation as personnel returned to civilian pursuits. When documented, the results were often highly classified. Even when eventually declassified, the data were often not approved for public release until years later.2 Even after declassification and approval for public release, the records are sometimes difficult to find. Through a fortuitous discovery, a set of handwritten notes by ''ORF July 1945'' entitled ''Dragon - Research with a Pulsed Fission Reactor'' was found by William L. Myers in an old storage safe at Pajarito Site of the Los Alamos National Laboratory3. Of course, ORF was identified as Otto R. Frisch. The document was attached to a page in a nondescript spiral bound notebook labeled ''494 Book'' that bore the signatures of Louis Slotin and P. Morrison. The notes also reference an ''Idea LS'' that can only be Louis Slotin. The discovery of the notes led to a search of Laboratory Archives, the negative files of the photo lab, and the Report Library for additional details of the experiments with the Dragon machine that were conducted between January and July 1945. The assembly machine and the experiments were carefully conceived and skillfully executed. The analyses--without the crutch of computers--display real insight into the characteristics of the nuclear chain reaction. The information presented here provides what is believed to be a complete collection of the original documentation of the observations made with the Dragon Machine in early 1945.

R.E. Malenfant

2005-08-12T23:59:59.000Z

292

Commissioning of the ATLAS Experiment  

E-Print Network (OSTI)

The status of the commissioning of the ATLAS experiment as of May 2008 is presented. The sub-detector integration in recent milestone weeks is described. Cosmic commissioning in milestone week M6 included simultaneous data-taking and combined track analysis of the muon detector and inner detector, as well as combined analysis of muon detector and muon trigger. The calorimeters have achieved near-full operation, and are integrated with the calorimeter trigger. The high-level-trigger infrastructure is being installed and algorithms tested in technical runs.

Juergen Thomas; for the ATLAS Collaboration at CERN

2008-08-07T23:59:59.000Z

293

Fuel Efficient Stoves for Darfur Camps of Internally DisplacedPersons - Report of Field Trip to North and South Darfur, Nov. 16 -Dec.17, 2005  

DOE Green Energy (OSTI)

Approximately 2.2 million internally displaced persons (''IDPs'') in Darfur are living in dense camps scattered in arid areas with low fuelwood productivity. Unsustainable harvesting of fuelwood by the IDPs has created ever increasing zones of denudation, that now (in November 2005) have reached several kilometers from the camp boundaries. Leaving the safety of the camps to fetch fuelwood from farther and farther away imposes great risk and hardship on the IDP women. Three different metal fuel efficient stove (''FES'') designs were tested in Darfur IDP camps for their suitability to substantially reduce the fuelwood needs of IDPs. The mud-and-dung ''ITDG'' stoves being promoted under the current FES program were also examined and tested. A modified design of the ITDG mud-and-dung stove, ''Avi'', was developed, built and tested. Systematic informal surveys of IDP households were undertaken in North and South Darfur to understand the household parameters related to family size, food, fuel, cooking habits, cooking pots, expenditure on fuel, and preferences related to alternative ways to spend time/money if fuel could be saved. Surveys found that a significant fraction of families are missing meals for lack of fuel (50% in South Darfur, and 90% in the North Darfur camps visited by the mission). About 60% of women in South Darfur, and about 90% of women in North Darfur camps purchase fuelwood. Selling some of the food rations to purchase fuel to cook meals was significant (40%) in South Darfur and has become common (80%) in North Darfur. The LBNL mission found that two of the metal stoves and the mud-and-dung Avi can significantly reduce fuelwood consumption using the same fuel, pot, cooking methods, and food ingredients used by Darfur IDPs. The most suitable design for Darfur conditions would be a modified ''Tara'' stove. With training of the cooks in tending the fire, this stove can save 50% fuel for the IDPs. The stove costs less than $10 (US) to produce in Darfur, and saves fuelwood worth $160 annually at local market prices. For programmatic and administrative reasons, the LBNL mission do not recommend a mud-and-dung stove, for which control of quality and dimensional accuracy is expensive and cumbersome to administer, particularly in a rapid large rollout effort. A light metal stove, on the other hand, can be rapidly produced in large numbers locally in Darfur, with good quality control exercised on the material and dimensions of the stoves right at the workshop where it is produced. LBNL mission also recommends immediate trials of 50 Tara stoves in a pilot technical rollout, 500 Tara stoves in a pilot social rollout, in parallel with a technical effort to modify the Tara design to make it better suited for Darfur camp conditions. The mission also recommends a program for manufacturing, disseminating the metal stoves, and educating the IDPs in fuel-efficient cooking practices. Monitoring of the stove quality, dissemination effort and training should be an integral part of the program, with systematic summaries planned with 10,000, 50,000 and 100,000 stoves have been disseminated. In the above pilot rollouts as well as in the final implementation, it is important to continue to pay attention to training of the cooks in tending the cooking fire in the stoves, and offer continued social reinforcement to this training (e.g., through periodic competitions to cook normal meals with the least fuelwood use.)

Galitsky, Christina; Gadgil, Ashok; Jacobs, Mark; Lee, Yoo-Mi

2006-02-01T23:59:59.000Z

294

Stack Monitor Operating Experience Review  

Science Conference Proceedings (OSTI)

Stack monitors are used to sense radioactive particulates and gases in effluent air being vented from rooms of nuclear facilities. These monitors record the levels and types of effluents to the environment. This paper presents the results of a stack monitor operating experience review of the U.S. Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS) database records from the past 18 years. Regulations regarding these monitors are briefly described. Operating experiences reported by the U.S. DOE and in engineering literature sources were reviewed to determine the strengths and weaknesses of these monitors. Electrical faults, radiation instrumentation faults, and human errors are the three leading causes of failures. A representative all modes failure rate is 1E-04/hr. Repair time estimates vary from an average repair time of 17.5 hours (with spare parts on hand) to 160 hours (without spare parts on hand). These data should support the use of stack monitors in any nuclear facility, including the National Ignition Facility and the international ITER project.

L. C. Cadwallader; S. A. Bruyere

2009-05-01T23:59:59.000Z

295

Quantum bouncer: theory and experiment  

E-Print Network (OSTI)

The quantum bouncer (QB) concept is a known QM textbook example of confined particle, namely, a solution to the 1D Schroedinger equation for a linear potential (the so-called Airy equation). It would be a great methodological challenge to create such a QM object in laboratory. An attempt of observation of the QB ``running'' in the horizontal direction was recently made by the international team at the Laue-Langevin Institute, Grenoble. The experiment was performed with ultra-cold neutrons. In this paper, the experiment is analyzed in view of the authors' claim that ``neutron quantum states in Earth gravitational field'' are observed. The experimental apparatus is designed for measurements of horizontal flux of neutrons passing through an absorbing wave guide with a variable height of absorber. From our analysis, it follows, however, that in such a layout measured data are not sensitive to quantum probability density in the vertical direction. The overall conclusion is made that the experimental data do not contain sufficient information to justify the claim.

Anatoli Andrei Vankov

2009-06-28T23:59:59.000Z

296

The boardman regional flux experiment  

SciTech Connect

A field campaign was carried out near Boardman, Oregon, to study the effects of subgrid-scale variability of sensible- and latent-heat fluxes on surface boundary-layer properties. The experiment involved three U.S. Department of Energy laboratories, one National Oceanic and Atmospheric Administration laboratory, and several universities. The experiment was conducted in a region of severe contrasts in adjacent surface types that accentuated the response of the atmosphere to variable surface forcing. Large values of sensible-heat flux and low values of latent-heat flux characterized a sagebrush steppe area; significantly smaller sensible-heat fluxes and much larger latent-heat fluxes were associated with extensive tracts of irrigated farmland to the north, east, and west of the steppe. Data were obtained from an array of surface flux stations, remote-sensing devices, an instrumented aircraft, and soil and vegetation measurements. The data will be used to address the problem of extrapolating from a limited number of local measurements to area-averaged values of fluxes suitable for use in global climate models. 16 refs., 13 figs.

Doran, J.C.; Hubbe, J.M.; Kirkham, R.R.; Shaw, W.J.; Whiteman, C.D. (Pacific Northwest Lab., Richland, WA (United States)); Barnes, F.J.; Cooper, D.; Porch, W. (Los Alamos National Lab., NM (United States)); Coulter, R.L.; Cook, D.R.

1992-11-01T23:59:59.000Z

297

The Polarized SRF Gun Experiment  

SciTech Connect

RF electron guns are capable of producing electron bunches with high brightness, which outperform DC electron guns and may even be able to provide electron beams for the ILC without the need for a damping ring. However, all successful existing guns for polarized electrons are DC guns because the environment inside an RF gun is hostile to the GaAs cathode material necessary for polarization. While the typical vacuum pressure in a DC gun is better than 10{sup -11} torr the vacuum in an RF gun is in the order of 10{sup -9} torr. Experiments at BINP Novosibirsk show that this leads to strong ion back-bombardment and generation of dark currents, which destroy the GaAs cathode in a short time. The situation might be much more favorable in a (super-conducting) SRF gun. The cryogenic pumping of the gun cavity walls may make it possible to maintain a vacuum close to 10{sup -12} torr, solving the problem of ion bombardment and dark currents. Of concern would be contamination of the gun cavity by evaporating cathode material. This report describes an experiment that Brookhaven National Laboratory (BNL) in collaboration with Advanced Energy Systems (AES) is conducting to answer these questions.

Kewisch, Joerg; Ben-Zvi, Ilan; Rao, Triveni; Burrill, Andrew; Pate, David; Grover, Ranjan [Brookhaven National Laboratory, Upton, NY 11973 (United States); Todd, Rob; Bluem, Hans; Holmes, Doug; Schultheiss, Tom [Advanced Energy Systems, Medford, NY 11763 (United States)

2008-02-06T23:59:59.000Z

298

The polarized SRF gun experiment.  

Science Conference Proceedings (OSTI)

RF electron guns are capable of producing electron bunches with high brightness, which outperform DC electron guns and may even be able to provide electron beams for the ILC without the need for a damping ring. However, all successful existing guns for polarized electrons are DC guns because the environment inside an RF gun is hostile to the GaAs cathode material necessary for polarization. While the typical vacuum pressure in a DC gun is better than 10{sup -11} torr the vacuum in an RF gun is in the order of 10{sup -9} torr. Experiments at BINP Novosibirsk show that this leads to strong ion back-bombardment and generation of dark currents, which destroy the GaAs cathode in a short time. The situation might be much more favorable in a (super-conducting) SRF gun. The cryogenic pumping of the gun cavity walls may make it possible to maintain a vacuum close to 10{sup -12} torr, solving the problem of ion bombardment and dark currents. Of concern would be contamination of the gun cavity by evaporating cathode material. This report describes an experiment that Brookhaven National Laboratory (BNL) in collaboration with Advanced Energy Systems (AES) is conducting to answer these questions.

Kewisch,J.; Ben-Zvi, I.; Rao, T.; Burrill, A.; Pate, D.; Grover, R.; Todd, R.; Bluem, H.; Holmes, D.; Schultheiss, T.

2007-09-10T23:59:59.000Z

299

ISOTHERMAL AIR INGRESS VALIDATION EXPERIMENTS  

SciTech Connect

Idaho National Laboratory carried out air ingress experiments as part of validating computational fluid dynamics (CFD) calculations. An isothermal test loop was designed and set to understand the stratified-flow phenomenon, which is important as the initial air flow into the lower plenum of the very high temperature gas cooled reactor (VHTR) when a large break loss-of-coolant accident occurs. The unique flow characteristics were focused on the VHTR air-ingress accident, in particular, the flow visualization of the stratified flow in the inlet pipe to the vessel lower plenum of the General Atomics Gas Turbine-Modular Helium Reactor (GT-MHR). Brine and sucrose were used as heavy fluids, and water was used to represent a light fluid, which mimics a counter current flow due to the density difference between the stimulant fluids. The density ratios were changed between 0.87 and 0.98. This experiment clearly showed that a stratified flow between simulant fluids was established even for very small density differences. The CFD calculations were compared with experimental data. A grid sensitivity study on CFD models was also performed using the Richardson extrapolation and the grid convergence index method for the numerical accuracy of CFD calculations . As a result, the calculated current speed showed very good agreement with the experimental data, indicating that the current CFD methods are suitable for predicting density gradient stratified flow phenomena in the air-ingress accident.

Chang H Oh; Eung S Kim

2011-09-01T23:59:59.000Z

300

Special Experiments: AES-UES  

NLE Websites -- All DOE Office Websites (Extended Search)

Special Experiments at the APS Special note is made of the following experimental activities. (Updated 2/19/2012 17:00) BEAMLINE DATES SPOKESPERSON COMMENTS 2BM-B rad #92404 2/24- 2/27 Patrick LaReviere U of C *Approvals pending *No special procedure, samples must be surveyed before and after experiment by APS-HP. 10ID-B #92409 2/29- 3/05 Ken Kemner ANL-203 *Approvals pending *Samples may be left unattended for up to 12 hours with beam ON when hutch door is secured with lock and chain. 10BM-B rad #92408 3/01- 3/06 Ken Kemner ANL-203 *Approvals Pending *Samples may be left unattended for up to 12 hours with beam ON when hutch door is secured with lock and chain. 1ID-B rad #91277 3/07- 3/12 Don Brown- LANL Mark Daymond Queen's University *Approvals Pending 3ID-B #92107 3/10- 3/19 Valentin Iota UNLV

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

HERS experiment cause for confidence.  

SciTech Connect

At last April's Affordable Comfort conference, I conducted a small HERS (home energy ratings) experiment to examine the relative variability of ratings in new and older homes. The experiment grew out of discussions with Oak Ridge National Laboratory Senior Researcher Mark Ternes and EPA Energy Specialist Mia South about how good the HERS tools currently employed in the new homes market are at identifying cost-effective conservation measures in existing homes. Older homes present challenges for raters that may not generally exist in new construction. These include the absence of blueprints, the inability to interview the builder, the difficulty of identifying the operating efficiency of installed equipment, and different envelope characteristics within the home caused by partial remodels over the years. For precisely these reasons, the need for accurate ratings of older homes is acute. The efficacy of ratings in existing homes hinges on two questions: How accurate are the ratings in existing homes? and, How much does accuracy matter to the selection of conservation measures? A small experiment was organized to test the variability of ratings. Two homes were chosen to represent the very broad spectra that raters can find in the new-construction and existing-home housing stock. The new home in Park Ridge, Illinois, is typical in size and layout of the homes being built in the suburbs around Chicago. This four-bedroom, two-story house with finished basement measures slightly more than 4,000 ft{sup 2}, including the basement. The older home is located in Elgin, Illinois, and was built before 1940, probably sometime in the '20s or '30s. This two-bedroom house has a basement in which the furnace, water heater, clothes washer, and dryer are located. The raters disagreed as to whether the basement should be considered part of the conditioned space. Excluding the basement area, the house measurement approximately 1,000 ft{sup 2}. The rating process included a site visit to measure the homes features, inspection of the blueprints for the new home (none existed for the Elgin home), and a blower door test. After the raters completed their analysis, I examined the effect that the variability of ratings for the Elgin home had on choices for energy conservation measures. Although the sample was small, the results of this experiment are valuable. They may be summarized as follows: First, the ratings that different analysts estimated varied more widely for the older home than they did for the new home. Second, for the older home, the identification of cost-effective energy conservation measures was insensitive to the variation in ratings. Clearly, these findings need to be verified in further experiments. But it is noteworthy that the separate ratings of the new home were in such good agreement, and that cost-effective efficiency recommendations can be arrived at even when divergences exist in the absolute rating value. These findings also suggest that it is appropriate to have confidence in ratings as a tool for identifying cost-effective energy measures in older housing stock.

Cavallo, J. D.; Energy Systems

1999-09-01T23:59:59.000Z

302

Silicon detectors for the next generation of high energy physics experiments: expected degradation  

E-Print Network (OSTI)

There exists an enormous interest for the study of very high energy domain in particle physics, both theoretically and experimentally, in the aim to construct a general theory of the fundamental constituents of matter and of their interactions. Until now, semiconductor detectors have widely been used in modern high energy physics experiments. They are elements of the high resolution vertex and tracking system, as well as of calorimeters. The main motivation of this work is to discuss how to prepare some possible detectors - only silicon option being considered, for the new era of HEP challenges because the bulk displacement damage in the detector, consequence of irradiation, produces effects at the device level that limit their long time utilisation, increasing the leakage current and the depletion voltage, eventually up to breakdown, and thus affecting the lifetime of detector systems. In this paper, physical phenomena that conduce to the degradation of the detector are discussed and effects are analysed at the device level (leakage current and effective carrier concentration) in the radiation environments expected in the next generation of hadron colliders after LHC, at the next lepton and gamma-gamma colliders, as well as in astroparticle experiments, in conditions of long time continuum irradiations, for different technological options. The predicted results permit a better decision to obtain devices with harder parameters to radiation.

I. Lazanu; S. Lazanu

2005-12-31T23:59:59.000Z

303

Positron-diffraction experiments with a brightness-enhanced slow positron beam  

Science Conference Proceedings (OSTI)

The construction of a high brightness slow positron beam has enabled us to extend Low Energy Positron Diffraction (LEPD) measurements well beyond the previously accessible range of energies. Details of the design and construction of this beam, which utilizes two stages of reflection remoderation for a 500-fold increase in brightness-per-volt, are presented, with emphasis on the positron optics. The positron beam is maintained in an ultra-high vacuum environment. This, together with the inclusion of facilities for display LEED and Auger Electron Spectroscopy, make the apparatus well suited for surface studies. Two sets of experiments performed with this new apparatus are described. Measurements of the specularly diffracted intensity from Cu(001) and Cu(111) single crystals show large peaks in the previously inaccessible 10-30 volt range. These peaks are well displaced from the kinematic Bragg positions and may be influenced by the emergence of non-specular diffraction beams, but the sharp series of features characteristic of beam threshold effects has not been observed. In the second set of experiments neutral positronium atom production is measured as a function of incident positron energy. The observed positronium production is correlated to the intensity vs. energy spectrum for diffracted positrons, suggesting that positronium formation is an important channel for elastically scattered positrons. The angular distribution of positronium formed changes with incident beam energy and may contain information on the details of the potential in the surface region.

Lippel, P.H.

1988-01-01T23:59:59.000Z

304

Particle dynamics in two-dimensional random energy landscapes - experiments and simulations  

E-Print Network (OSTI)

The dynamics of individual colloidal particles in random potential energy landscapes were investigated experimentally and by Monte Carlo simulations. The value of the potential at each point in the two-dimensional energy landscape follows a Gaussian distribution. The width of the distribution, and hence the degree of roughness of the energy landscape, was varied and its effect on the particle dynamics studied. This situation represents an example of Brownian dynamics in the presence of disorder. In the experiments, the energy landscapes were generated optically using a holographic set-up with a spatial light modulator, and the particle trajectories were followed by video microscopy. The dynamics are characterized using, e.g., the time-dependent diffusion coefficient, the mean squared displacement, the van Hove function and the non-Gaussian parameter. In both, experiments and simulations, the dynamics are initially diffusive, show an extended sub-diffusive regime at intermediate times before diffusive motion is recovered at very long times. The dependence of the long-time diffusion coefficient on the width of the Gaussian distribution agrees with theoretical predictions. Compared to the dynamics in a one-dimensional potential energy landscape, the localization at intermediate times is weaker and the diffusive regime at long times reached earlier, which is due to the possibility to avoid local maxima in two-dimensional energy landscapes.

Florian Evers; Christoph Zunke; Richard D. L. Hanes; Joerg Bewerunge; Imad Ladadwa; Andreas Heuer; Stefan U. Egelhaaf

2013-02-13T23:59:59.000Z

305

Analysis of HFIR Dosimetry Experiments Performed in Cycles 400 and 401  

Science Conference Proceedings (OSTI)

The High Flux Isotope Reactor (HFIR) has been in operation at Oak Ridge National Laboratory since 1966. To upgrade and enhance capabilities for neutron science research at the reactor, a larger HB-2 beam tube was installed in April of 2002. To assess, experimentally, the impact of this larger beam tube on radiation damage rates [i.e., displacement-per-atom (dpa) rates] used in vessel life extension studies, dosimetry experiments were performed from April to August 2004 during fuel cycles 400 and 401. This report documents the analysis of the dosimetry experiments and the determination of best-estimate dpa rates. These dpa rates are obtained by performing a least-squares adjustment of calculated neutron and gamma-ray fluxes and the measured responses of radiometric monitors and beryllium helium accumulation fluence monitors. The best-estimate dpa rates provided here will be used to update HFIR pressure vessel life extension studies, which determine the pressure/temperature limits for reactor operation and the HFIR pressure vessel's remaining life. All irradiation parameters given in this report correspond to a reactor power of 85 MW.

Remec, Igor [ORNL; Baldwin, Charles A [ORNL

2008-09-01T23:59:59.000Z

306

AMIE (ARM MJO Investigation Experiment):  

NLE Websites -- All DOE Office Websites (Extended Search)

7 7 AMIE (ARM MJO Investigation Experiment): Observations of the Madden-Julian Oscillation for Modeling Studies Science Plan ARM Climate Research Facility Tropical Western Pacific Manus Site October 2011-March 2012 C Long Principal Investigator A DelGenio P May W Gustafson S McFarlane R Houze P Minnis C Jakob C Schumacher M Jensen A Vogelmann S Klein Y Wang L Ruby Leung X Wu X Liu S Xie E Luke March 2010 DISCLAIMER This report was prepared as an account of work sponsored by the U.S Government Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed,

307

Experiment Profile: Mu2e  

NLE Websites -- All DOE Office Websites (Extended Search)

Mu2e Mu2e NAME: Muon-to-electron conversion, or Mu2e WHAT IS THE EXPERIMENT LOOKING FOR? A muon that does not follow the traditional weak- force decay pattern into a lighter electron and two neutrinos, but converts wholly into an electron. WHAT WILL THIS TELL US ABOUT THE WORLD? * Observing Mu2e conversion would point the way to a unification of all the forces of nature controlling the interactions of matter. This unification of the four existing forces we observe today - gravity, the electromagnetic force, and the weak and strong forces - is considered Albert Einstein's dream of "grand unification. * Finding signs of this "grand unification" could explain how the universe evolved from being

308

Flatback airfoil wind tunnel experiment.  

DOE Green Energy (OSTI)

A computational fluid dynamics study of thick wind turbine section shapes in the test section of the UC Davis wind tunnel at a chord Reynolds number of one million is presented. The goals of this study are to validate standard wind tunnel wall corrections for high solid blockage conditions and to reaffirm the favorable effect of a blunt trailing edge or flatback on the performance characteristics of a representative thick airfoil shape prior to building the wind tunnel models and conducting the experiment. The numerical simulations prove the standard wind tunnel corrections to be largely valid for the proposed test of 40% maximum thickness to chord ratio airfoils at a solid blockage ratio of 10%. Comparison of the computed lift characteristics of a sharp trailing edge baseline airfoil and derived flatback airfoils reaffirms the earlier observed trend of reduced sensitivity to surface contamination with increasing trailing edge thickness.

Mayda, Edward A. (University of California, Davis, CA); van Dam, C.P. (University of California, Davis, CA); Chao, David D. (University of California, Davis, CA); Berg, Dale E.

2008-04-01T23:59:59.000Z

309

ARM MJO Investigation Experiment on  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 ARM MJO Investigation Experiment on Gan Island (AMIE-Gan) Science Plan October 2011-March 2012 C Long Principal Investigator A Del Genio P May M Deng S McFarlane X Fu P Minnis W Gustafson C Schumacher R Houze A Vogelmann C Jakob Y Wang M Jensen P Webster R Johnson S Xie X Liu C Zhang E Luke April 2011 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.

310

Fermilab SRF cryomodule operational experience  

SciTech Connect

Fermi National Accelerator Laboratory is constructing an Advanced Accelerator Research and Development facility at New Muon Lab. The cryogenic infrastructure in support of the initial phase of the facility consists of two Tevatron style standalone refrigerators, cryogenic distribution system as well as an ambient temperature pumping system to achieve 2K operations with supporting purification systems. During this phase of the project a single Type III plus 1.3 GHz cryomodule was installed, cooled and tested. Design constraints of the cryomodule required that the cryomodule individual circuits be cooled at predetermined rates. These constraints required special design solutions to achieve. This paper describes the initial cooldown and operational experience of a 1.3 GHz cryomodule using the New Muon Lab cryogenic system.

Martinez, A.; Klebaner, A.L.; Theilacker, J.C.; DeGraff, B.D.; White, M.; Johnson, G.S.; /Fermilab

2011-06-01T23:59:59.000Z

311

Review of Solar Neutrino Experiments  

E-Print Network (OSTI)

This paper reviews the constraints on the solar neutrino mixing parameters with data collected by the Homestake, SAGE, GALLEX, Kamiokande, SuperKamiokande, and SNO experiments. An emphasis will be given to the global solar neutrino analyses in terms of matter-enhanced oscillation of two active flavors. The results to-date, including both solar model dependent and independent measurements, indicate that electron neutrinos are changing to other active types on route to the Earth from the Sun. The total flux of solar neutrinos is found to be in very good agreement with solar model calculations. Future measurements will focus on greater accuracy for mixing parameters and on better sensitivity to low neutrino energies.

Alain Bellerive

2003-12-16T23:59:59.000Z

312

"Neutrino-4" experiment: preparations for search for sterile neutrino at 100 MW reactor SM-3 at 6-13 meters  

E-Print Network (OSTI)

There has been designed an experimental project "Neutrino-4" for 100 MW reactor SM-3 to test the hypothesis of the "reactor antineutrino anomaly". Advantages of the reactor SM-3 for such an experiment are low background conditions as well as small dimensions of a reactor core - 35x42x42 cm3. One has carried on the Monte-Carlo modeling of a position sensitive antineutrino detector consisting of 5 operation sections, which as a result of displacement, covers the distance from 6 to 13 meters from the reactor core. One has succeeded in obtaining an experimental area of sensitivity to oscillation parameters, which enables to verify the hypothesis of reactor antineutrino oscillations into a sterile state.

A. P. Serebrov; A. K. Fomin; V. G. Zinoviev; Yu. E. Loginov; M. S. Onegin; A. M. Gagarsky; G. A. Petrov; V. A. Solovey; A. V. Chernyi; O. M. Zherebtsov; V. P. Martemyanov; V. G. Zinoev; V. G. Tarasenkov; V. I. Alyoshin; A. L. Petelin; S. V. Pavlov; M. N. Svyatkin; A. L. Izhutov; S. A. Sazontov; D. K. Ryazanov; M. O. Gromov; N. S. Khramkov; V. I. Ryikalin

2012-05-14T23:59:59.000Z

313

Monsoon Trough Boundary Layer Experiment (MONTBLEX)  

Science Conference Proceedings (OSTI)

The Monsoon Trough Boundary Layer Experiment (MONTBLEX) is a multi-institutional, all-India coordinated program to study the atmospheric boundary-layer processes in the monsoon trough (MT) area of northern India. The experiment is being organized ...

Malti Goel; H. N. Srivastava

1990-11-01T23:59:59.000Z

314

The BMRC Australian Monsoon Experiment: AMEX  

Science Conference Proceedings (OSTI)

The Bureau of Meteorology Research Centre (BMRC) willbe conducting a major research effort in the Australian tropics during 1986-1988 including a two-phase field experiment, the Australian Monsoon Experiment (AMEX). This will be done in ...

Greg J. Holland; John L. McBride; Roger K. Smith; David Jasper; Thomas D. Keenan

1986-12-01T23:59:59.000Z

315

Experiments Concerning Variability among Subjective Analyses  

Science Conference Proceedings (OSTI)

The variability of subjective (hand) analyses is explored by examining the results of two synoptic laboratory experiments. Two groups of analysts participated in the first experiment, one consisting of 13 senior meteorology students (1977), the ...

Dayton G. Vincent; Herbert Borenstein

1980-10-01T23:59:59.000Z

316

The Monterey Area Ship Track Experiment  

Science Conference Proceedings (OSTI)

In June 1994 the Monterey Area Ship Track (MAST) experiment was conducted off the coast of California to investigate the processes behind anthropogenic modification of cloud albedo. The motivation for the MAST experiment is described here, as ...

Philip A. Durkee; Kevin J. Noone; Robert T. Bluth

2000-08-01T23:59:59.000Z

317

Experiment Hall & Beamline | Advanced Photon Source  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiment Hall & Beamlines The ratchet-shaped radiation-shielding wall between the APS storage ring and the experiment hall serves as a line of demarcation. Thirty-five "sectors"...

318

The Lidars in Flat Terrain (LIFT) Experiment  

Science Conference Proceedings (OSTI)

The authors describe and present early results from the July_August 1996 Lidars in Flat Terrain (LIFT) experiment. LIFT was a boundary layer experiment that made use of recently developed Doppler, aerosol backscatter, and ozone lidars, along with ...

Stephen A. Cohn; Shane D. Mayor; Christian J. Grund; Tammy M. Weckwerth; Christoph Senff

1998-07-01T23:59:59.000Z

319

Current experiments in elementary particle physics. Revision  

Science Conference Proceedings (OSTI)

This report contains summaries of 568 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1988 are excluded. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, INS (Tokyo), ITEP (Moscow), IUCF (Bloomington), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

Galic, H. [Stanford Linear Accelerator Center, Menlo Park, CA (United States); Armstrong, F.E. [Lawrence Berkeley Lab., CA (United States); von Przewoski, B. [Indiana Univ. Cyclotron Facility, Bloomington, IN (United States)] [and others

1994-08-01T23:59:59.000Z

320

The 1981 ocean tomography experiment: Preliminary results  

Science Conference Proceedings (OSTI)

Preliminary results from a 1981 test ocean acoustic tomography experiment are presented. The system deployed in the southern North Atlantic

The Ocean Tomography Group; R. C. Spindel

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Experience with Commissioning New Generation Gas Suspension ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2013 TMS Annual Meeting & Exhibition. Symposium , Alumina and Bauxite. Presentation Title, Experience with Commissioning...

322

Preparations for Muon Experiments at Fermilab  

SciTech Connect

The use of existing Fermilab facilities to provide beams for two muon experiments--the Muon to Electron Conversion Experiment (Mu2e) and the New g-2 Experiment--is under consideration. Plans are being pursued to perform these experiments following the completion of the Tevatron Collider Run II, utilizing the beam lines and storage rings used today for antiproton accumulation without considerable reconfiguration.

Syphers, M.J.; Popovic, M.; Prebys, E.; /Fermilab; Ankenbrandt, C.; /Muons Inc., Batavia

2009-05-01T23:59:59.000Z

323

Institute of Computer Science Computational experience with ...  

E-Print Network (OSTI)

Institute of Computer Science. Academy of Sciences of the Czech Republic. Computational experience with modified. conjugate gradient methods for.

324

Experiments with Wind to Produce Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Nat EXPERIMENTS WITH WIND TO PRODUCE ENERGY Curriculum: Wind Power (simple machines, weatherclimatology, aerodynamics, leverage, mechanics, atmospheric pressure, and energy...

325

Neutrino properties from reactor and accelerator experiments  

E-Print Network (OSTI)

In this talk, I discuss the general theory of neutrino oscillation experiments, putting special emphasis on the momentum distribution of the incoming neutrino beam. Then I discuss recent neutrino oscillation experiments, viz., LSND, KARMEN and CHOOZ. Experiments foreseeable in the near future have also been discussed at the end.

Pal, P B

1998-01-01T23:59:59.000Z

326

Toward an experiment engine for lightweight grids  

Science Conference Proceedings (OSTI)

This paper presents a case study conducted on the Grid'5000 platform, a lightweight grid. The goal was to make a rather simple experiment, and study how difficult it was to carry out correctly. This means it had to be correct, reproducible and efficient. ... Keywords: experiment framework, experiment methodology, lightweight grid, performance study

Brice Videau; Corinne Touati; Olivier Richard

2007-10-01T23:59:59.000Z

327

PXIE: Project X Injector Experiment  

Science Conference Proceedings (OSTI)

A multi-MW proton facility, Project X, has been proposed and is currently under development at Fermilab. We are planning a program of research and development aimed at integrated systems testing of critical components comprising the front end of the Project X. This program is being undertaken as a key component of the larger Project X R&D program. The successful completion of this program will validate the concept for the Project X front end, thereby minimizing a primary technical risk element within Project X. Integrated systems testing, known as the Project X Injector Experiment (PXIE), will be accomplished with a new test facility under construction at Fermilab and will be completed over the period FY12-16. PXIE will include an H{sup -} ion source, a CW 2.1-MeV RFQ and two superconductive RF (SRF) cryomodules providing up to 25 MeV energy gain at an average beam current of 1 mA (upgradable to 2 mA). Successful systems testing will also demonstrate the viability of novel front end technologies that are expected find applications beyond Project X.

Ostroumov, P.N.; /Argonne; Holmes, S.D.; Kephart, R.D.; Kerby, J.S.; Lebedev, V.A.; Mishra, C.S.; Nagaitsev, S.; Shemyakin, A.V.; Solyak, N.; Stanek, R.P.; /Fermilab; Li, D.; /LBL, Berkeley

2012-05-01T23:59:59.000Z

328

Yuan T. Lee's Crossed Molecular Beam Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

Yuan T. Lee's Crossed Molecular Beam Experiment Yuan T. Lee's Crossed Molecular Beam Experiment Home | Staff | Search | Advisory Committee | User Facilities | Laboratories | Congress | Budget Yuan T. Lee's Crossed Molecular Beam Experiment http://web.archive.org/web/20000902074635/www.er.doe.gov/production/bes/YuanLee_Exp.html (1 of 4)4/7/2006 2:46:13 PM Yuan T. Lee's Crossed Molecular Beam Experiment The above illustration was drawn by Professor Yuan T. Lee, who shared the 1986 Nobel Prize in Chemistry. It shows the design for his crossed molecular beam experiment described in the story beginning on page 27 of "Basic Energy Sciences: Summary of Accomplishments" (DOE/ER-0455P, May 1990); the story is also copied below. The purpose of this experiment was to study the chemical reaction of sodium atoms with oxygen molecules. In the experiment, a beam of sodium atoms (green,

329

LCLS CDR Chapter 3 - Scientific Experiments  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 Scientific Basis for Optical Systems TECHNICAL SYNOPSIS The LCLS Scientific Advisory Committee (SAC) has recommended experiments in five scientific disciplines for the initial operation of the LCLS. These experiments cover a variety of scientific disciplines: atomic physics, plasma physics, chemistry, biology and materials science. The x-ray optics and detectors needed to verify the LCLS capability to address these five disciplines will be constructed and installed as part of the LCLS project. The experiments are described in detail in the document "LCLS: The First Experiments" referenced earlier. Two classes of experiments are proposed for the LCLS. The first class consists of experiments where the x-ray beam is used to probe the sample, as is done in most experiments at current

330

Today and Future Neutrino Experiments at Krasnoyarsk Nuclear Reactor  

E-Print Network (OSTI)

The results of undergoing experiments and new experiment propositions at Krasnoyarsk underground nuclear reactor are presented

Yu. V. Kozlov; S. V. Khalturtsev; I. N. Machulin; A. V. Martemyanov; V. P. Martemyanov; A. A. Sabelnikov; V. G. Tarasenkov; E. V. Turbin; V. N. Vyrodov; L. A. Popeko; A. V. Cherny; G. A. Shishkina

1999-12-21T23:59:59.000Z

331

2XIIB plasma confinement experiments  

SciTech Connect

This paper reports results of 2XIIB neutral-beam injection experiments with plasma-stream stabilization. The plasma stream is provided either by a pulsed plasma generator located on the field lines outside the plasma region or by ionization of neutral gas introduced at the mirror throat. In the latter case, the gas is ionized by the normal particle flux through the magnetic mirror. A method of plasma startup and sustenance in a steady-state magnetic field is reported in which the plasma stream from the pulsed plasma generator serves as the initial target for the neutral beams. After an energetic plasma of sufficient density is established, the plasma generator stream is replaced by the gas-fed stream. Lifetimes of the stabilized plasma increase with plasma temperature in agreement with the plasma stabilization of the drift-cyclotron loss-cone mode. The following plasma parameters are attained using the pulsed plasma generator for stabilization: n approximately 5 x 10/sup 13/ cm/sup -3/, anti W/sub i/ approximately 13 keV, T/sub e/ = 140 eV, and ntau/sub p/ approximately 7 x 10/sup 10/ cm/sup -3/.s. With the gas feed, the mean deuterium ion energy is 9 keV and the peak density n approximately 10/sup 14/ cm/sup -3/. In the latter case, the energy confinement parameter reaches ntau/sub E/ = 7 x 10/sup 10/ cm/sup -3/.s, and the particle confinement parameter reaches ntau/sub p/ = 1 x 10/sup 11/ cm/sup -3/.s.

Coensgen, F.H.; Clauser, J.F.; Correll, D.L.

1976-08-06T23:59:59.000Z

332

In-situ tuff water migration/heater experiment: experimental plan  

Science Conference Proceedings (OSTI)

Tuffs on the Nevada Test Site (NTS) are currently under investigation as a potential isolation medium for heat-producing nuclear wastes. The National Academy of Sciences has concurred in our identification of the potentially large water content ({le}40 vol %) of tuffs as one of the important issues affecting their suitability for a repository. This Experimental Plan describes an in-situ experiment intended as an initial assessment of water generation/migration in response to a thermal input. The experiment will be conducted in the Grouse Canyon Welded Tuff in Tunnel U12g (G-Tunnel) located in the north-central region of the NTS. While the Grouse Canyon Welded Tuff is not a potential repository medium, it has physical, thermal, and mechanical properties very similar to those tuffs currently under consideration and is accessible at depth (400 m below the surface) in an existing facility. Other goals of the experiment are to support computer-code and instrumentation development, and to measure in-situ thermal properties. The experimental array consists of a central electrical heater, 1.2 m long x 10.2 cm diameter, surrounded by three holes for measuring water-migration behavior, two holes for measuring temperature profiles, one hole for measuring thermally induced stress in the rock, and one hole perpendicular to the heater to measure displacement with a laser. This Experimental Plan describes the experimental objectives, the technical issues, the site, the experimental array, thermal and thermomechanical modeling results, the instrumentation, the data-acquisition system, posttest characterization, and the organizational details.

Johnstone, J.K.

1980-08-01T23:59:59.000Z

333

The BigBoss Experiment  

SciTech Connect

BigBOSS is a Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with a wide-area galaxy and quasar redshift survey over 14,000 square degrees. It has been conditionally accepted by NOAO in response to a call for major new instrumentation and a high-impact science program for the 4-m Mayall telescope at Kitt Peak. The BigBOSS instrument is a robotically-actuated, fiber-fed spectrograph capable of taking 5000 simultaneous spectra over a wavelength range from 340 nm to 1060 nm, with a resolution R = {lambda}/{Delta}{lambda} = 3000-4800. Using data from imaging surveys that are already underway, spectroscopic targets are selected that trace the underlying dark matter distribution. In particular, targets include luminous red galaxies (LRGs) up to z = 1.0, extending the BOSS LRG survey in both redshift and survey area. To probe the universe out to even higher redshift, BigBOSS will target bright [OII] emission line galaxies (ELGs) up to z = 1.7. In total, 20 million galaxy redshifts are obtained to measure the BAO feature, trace the matter power spectrum at smaller scales, and detect redshift space distortions. BigBOSS will provide additional constraints on early dark energy and on the curvature of the universe by measuring the Ly-alpha forest in the spectra of over 600,000 2.2 < z < 3.5 quasars. BigBOSS galaxy BAO measurements combined with an analysis of the broadband power, including the Ly-alpha forest in BigBOSS quasar spectra, achieves a FOM of 395 with Planck plus Stage III priors. This FOM is based on conservative assumptions for the analysis of broad band power (k{sub max} = 0.15), and could grow to over 600 if current work allows us to push the analysis to higher wave numbers (k{sub max} = 0.3). BigBOSS will also place constraints on theories of modified gravity and inflation, and will measure the sum of neutrino masses to 0.024 eV accuracy.

Schelgel, D.; Abdalla, F.; Abraham, T.; Ahn, C.; Allende Prieto, C.; Annis, J.; Aubourg, E.; Azzaro, M.; Bailey, S.; Baltay, C.; Baugh, C.; Bebek, C.; Becerril, S.; Blanton, M.; Bolton, A.; Bromley, B.; Cahn, R.; Carton, P.-H.; Cervanted-Cota, J.L.; Chu, Y.; Cortes, M.; /APC, Paris /Brookhaven /IRFU, Saclay /Marseille, CPPM /Marseille, CPT /Durham U. / /IEU, Seoul /Fermilab /IAA, Granada /IAC, La Laguna / /IAC, Mexico / / /Madrid, IFT /Marseille, Lab. Astrophys. / / /New York U. /Valencia U.

2012-06-07T23:59:59.000Z

334

A study of pumps for the Hot Dry Rock Geothermal Energy extraction experiment (LTFT (Long Term Flow Test))  

DOE Green Energy (OSTI)

A set of specifications for the hot dry rock (HDR) Phase II circulation pumping system is developed from a review of basic fluid pumping mechanics, a technical history of the HDR Phase I and Phase II pumping systems, a presentation of the results from experiment 2067 (the Initial Closed-Loop Flow Test or ICFT), and consideration of available on-site electrical power limitations at the experiment site. For the Phase II energy extraction experiment (the Long Term Flow Test or LTFT) it is necessary to provide a continuous, low maintenance, and highly efficient pumping capability for a period of twelve months at variable flowrates up to 420 gpm and at surface injection pressures up to 5000 psi. The pumping system must successfully withstand attacks by corrosive and embrittling gases, erosive chemicals and suspended solids, and fluid pressure and temperature fluctuations. In light of presently available pumping hardware and electric power supply limitations, it is recommended that positive displacement multiplex plunger pumps, driven by variable speed control electric motors, be used to provide the necessary continuous surface injection pressures and flowrates for LTFT. The decision of whether to purchase the required circulation pumping hardware or to obtain contractor provided pumping services has not been made.

Tatro, C.A.

1986-10-01T23:59:59.000Z

335

Current Experiments in Particle Physics (September 1996)  

SciTech Connect

This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries. This report contains full summaries of 180 approved current and recent experiments in elementary particle physics. The focus of the report is on selected experiments which directly contribute to our better understanding of elementary particles and their properties such as masses, widths or lifetimes, and branching fractions.

Galic, H.; Lehar, F.; Klyukhin, V.I.; Ryabov, Yu.G.; Bilak, S.V.; Illarionova, N.S.; Khachaturov, B.A.; Strokovsky, E.A.; Hoffman, C.M.; Kettle, P.-R.; Olin, A.; Armstrong, F.E.

1996-09-01T23:59:59.000Z

336

Software engineering: What do experiments need?  

SciTech Connect

This paper will review the use of software engineering in High Energy Physics experiments and will suggest ways in which that use will change significantly in the future. In Principle, experiments do not need software engineering. We can verify this by looking at a long series of experiments that have succeeded without it. Some experiments that have tried to apply formal engineering methods have given them up before the software was complete. Future experiments, however, face many new challenges in the larger data samples, larger and more distributed collaborations and longer time scales. In addition, new tools are available to aid in the development of complex software systems. It is appropriate, therefore, to examine whether there is now a better match between software engineering and the needs of experiments.

Loken, S.C.

1992-09-01T23:59:59.000Z

337

Software engineering: What do experiments need  

SciTech Connect

This paper will review the use of software engineering in High Energy Physics experiments and will suggest ways in which that use will change significantly in the future. In Principle, experiments do not need software engineering. We can verify this by looking at a long series of experiments that have succeeded without it. Some experiments that have tried to apply formal engineering methods have given them up before the software was complete. Future experiments, however, face many new challenges in the larger data samples, larger and more distributed collaborations and longer time scales. In addition, new tools are available to aid in the development of complex software systems. It is appropriate, therefore, to examine whether there is now a better match between software engineering and the needs of experiments.

Loken, S.C.

1992-09-01T23:59:59.000Z

338

The XENON100 Dark Matter Experiment  

SciTech Connect

The XENON100 experiment is searching for WIMPs, which are particles that may consist dark matter. It is located in the underground laboratory of Gran Sasso (LNGS) in Italy at a depth of {approx}3600 m.w.e.. The experiment description, its performance and the expected background based on Monte Carlo simulations and material screening along with the projected sensitivities of the experiment are presented. In addition, a brief description of the upgrade XENON100 detector is given.

Tziaferi, E. [Physics Institute, University of Zuerich, Winterthurerstr. 190, Zuerich (Switzerland)

2010-06-23T23:59:59.000Z

339

Magnet operating experience review for fusion applications  

Science Conference Proceedings (OSTI)

This report presents a review of magnet operating experiences for normal-conducting and superconducting magnets from fusion, particle accelerator, medical technology, and magnetohydrodynamics research areas. Safety relevant magnet operating experiences are presented to provide feedback on field performance of existing designs and to point out the operational safety concerns. Quantitative estimates of magnet component failure rates and accident event frequencies are also presented, based on field experience and on performance of similar components in other industries.

Cadwallader, L.C.

1991-11-01T23:59:59.000Z

340

Kilauea Iki lava lake experiment plans  

DOE Green Energy (OSTI)

Twelve experimental studies are proposed to complete field laboratory work at Kilauea Iki lava lake. Of these twelve experiments, eleven do not require the presence of melt. Some studies are designed to use proven techniques in order to expand our existing knowledge, while others are designed to test new concepts. Experiments are grouped into three main categories: geophysics, energy extraction, and drilling technology. Each experiment is described in terms of its location, purpose, background, configuration, operation, and feasibility.

Dunn, J.C.; Hills, R.G.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Systematic errors in long baseline oscillation experiments  

Science Conference Proceedings (OSTI)

This article gives a brief overview of long baseline neutrino experiments and their goals, and then describes the different kinds of systematic errors that are encountered in these experiments. Particular attention is paid to the uncertainties that come about because of imperfect knowledge of neutrino cross sections and more generally how neutrinos interact in nuclei. Near detectors are planned for most of these experiments, and the extent to which certain uncertainties can be reduced by the presence of near detectors is also discussed.

Harris, Deborah A.; /Fermilab

2006-02-01T23:59:59.000Z

342

WIPP Gas-Generation Experiments  

DOE Green Energy (OSTI)

An experimental investigation was conducted for gas generation in contact-handled transuranic (CH TRU) wastes subjected for several years to conditions similar to those expected to occur at the Waste Isolation Pilot Plant (WIPP) should the repository eventually become inundated with brine. Various types of actual CH TRU wastes were placed into 12 corrosion-resistant vessels. The vessels were loosely filled with the wastes, which were submerged in synthetic brine having the same chemical composition as that in the WIPP vicinity. The vessels were also inoculated with microbes found in the Salado Formation at WIPP. The vessels were sealed, purged, and the approximately 750 ml headspace in each vessel was pressurized with nitrogen gas to approximately 146 atmospheres to create anoxic conditions at the lithostatic pressure estimated in the repository were it to be inundated. The temperature was maintained at the expected 30C. The test program objective was to measure the quantities and species of gases generated by metal corrosion, radiolysis, and microbial activity. These data will assist in the specification of the rates at which gases are produced under inundated repository conditions for use in the WIPP Performance Assessment computer models. These experiments were very carefully designed, constructed, instrumented, and performed. Approximately 6 1/2 years of continuous, undisturbed testing were accumulated. Several of the vessels showed significantly elevated levels of generated gases, virtually all of which was hydrogen. Up to 4.2% hydrogen, by volume, was measured. Only small quantities of other gases, principally carbon dioxide, were detected. Gas generation was found to depend strongly on the waste composition. The maximum hydrogen generation occurred in vessels containing carbon steel. Visual examination of carbon-steel coupons confirmed the correspondence between the extent of observable corrosion and hydrogen generation. Average corrosion penetration rates in carbon-steel of up to 2.3 microns per year were deduced. Conversion of carbon to carbon dioxide was calculated to be as high as 4.7 g mol/yr/g carbon. Carbon monoxide was detected in only two waste compositions, and methane was detected in only one. In all three of these cases, the concentrations of these lesser gases detected were barely above the detection limits. No hydrogen sulfide was ever detected. Initial rates of hydrogen generation measured in the carbon-steel-bearing wastes during the first year of testing did not always correspond to rates measured over the longer term. Compared to the long-term trends, the initial gas-generation rates for some waste types were higher, for some lower, and for others remained constant. Although carbon-steel corrosion was clearly the dominant hydrogen generator, the rates of generation were found to be reduced in test vessels where the same quantity of carbon steel was co-mingled with other waste types. This is a beneficial phenomenon relative to performance of the WIPP repository. Statistical analyses of the results were made to quantify these negative interaction effects. Electron microscopy analyses of the carbon-steel coupons revealed that corrosion products were predominantly iron chlorides and oxides. Iron, chlorine, oxygen, uranium, magnesium, calcium, aluminum, silicon were all present in the corrosion products. No americium nor neptunium, both present in the wastes, were detected in any of the corrosion products. All

Frank S. Felicione; Steven M. Frank; Dennis D. Keiser

2007-05-01T23:59:59.000Z

343

Current experiments in elementary particle physics. Revised  

Science Conference Proceedings (OSTI)

This report contains summaries of 584 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1986 are excluded. Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, KEK, LAMPF, Novosibirsk, Paul Scherrer Institut (PSI), Saclay, Serpukhov, SLAC, SSCL, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

Galic, H. [Stanford Univ., CA (United States). Stanford Linear Accelerator Center; Wohl, C.G.; Armstrong, B. [Lawrence Berkeley Lab., CA (United States); Dodder, D.C. [Los Alamos National Lab., NM (United States); Klyukhin, V.I.; Ryabov, Yu.G. [Inst. for High Energy Physics, Serpukhov (Russian Federation); Illarionova, N.S. [Inst. of Theoretical and Experimental Physics, Moscow (Russian Federation); Lehar, F. [CEN Saclay, Gif-sur-Yvette (France); Oyanagi, Y. [Univ. of Tokyo (Japan). Faculty of Sciences; Olin, A. [TRIUMF, Vancouver, BC (Canada); Frosch, R. [Paul Scherrer Inst., Villigen (Switzerland)

1992-06-01T23:59:59.000Z

344

Fermilab | Science at Fermilab | Experiments & Projects | Intensity...  

NLE Websites -- All DOE Office Websites (Extended Search)

to main content Science at Fermilab Frontiers of Particle Physics Experiments & Projects Energy Frontier Tevatron at Fermilab Fermilab and the LHC Intensity Frontier Cosmic...

345

Incorporating Experience Curves in Appliance Standards Analysis  

E-Print Network (OSTI)

experience curves for wind farms. Energy Policy 33, 133-150.curves for wind power. Energy Policy 30, 1181- Jakob, M. ,

Desroches, Louis-Benoit

2012-01-01T23:59:59.000Z

346

ORISE: Graduate Student Research Experiences - Benjamin Martin  

NLE Websites -- All DOE Office Websites (Extended Search)

Experiences program at Oak Ridge National Laboratory, is trying to improve emergency response by developing computer codes to fuse together two different kinds of satellite...

347

Roadmap to the Project: Experiments List  

NLE Websites -- All DOE Office Websites (Extended Search)

into the environment. These releases were designed to characterize the dispersion of radiation. The purpose of the experiment was to enable scientists to determine the fraction...

348

SLAC National Accelerator Laboratory - Experiment Finds Ulcer...  

NLE Websites -- All DOE Office Websites (Extended Search)

10, 2012 Menlo Park, Calif. - Experiments at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory have revealed a potential new way to attack common...

349

Fermilab | Science at Fermilab | Experiments & Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

main content Science at Fermilab Frontiers of Particle Physics Experiments & Projects Energy Frontier Tevatron at Fermilab Fermilab and the LHC Intensity Frontier Cosmic Frontier...

350

Current experiments in elementary particle physics  

Science Conference Proceedings (OSTI)

This report contains summaries of 736 current and recent experiments in elementary particle physics (experiments that finished taking data before 1982 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, Joint Institute for Nuclear Research (Dubna), KEK, LAMPF, Novosibirsk, PSI/SIN, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground experiments. Also given are instructions for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

Wohl, C.G.; Armstrong, F.E.; Trippe, T.G.; Yost, G.P. (Lawrence Berkeley Lab., CA (USA)); Oyanagi, Y. (Tsukuba Univ., Ibaraki (Japan)); Dodder, D.C. (Los Alamos National Lab., NM (USA)); Ryabov, Yu.G.; Slabospitsky, S.R. (Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Serpukhov (USSR). Inst. Fiziki Vysokikh Ehnergij); Frosch, R. (Swiss Inst. for Nuclear Research, Villigen (Switzerla

1989-09-01T23:59:59.000Z

351

Office of Human Radiation Experiments - Archived Website  

NLE Websites -- All DOE Office Websites (Extended Search)

documents cold war metabolism of lethal dose studies with rates dose experiments medical research program Iodine-131 Iron-59 For further information regarding information...

352

Spatial Patterns Confound Experiments in Orchard Crops  

E-Print Network (OSTI)

patterns differ among sites, crops, and process of interest,currently lacking in the tree crops, specifically, and thecommonly used in tree crop experiments and in fertilizer

Rosenstock, Todd S; Plant, Richard E; Brown, Patrick H

2009-01-01T23:59:59.000Z

353

Lattice-Boltzmann modeling of micromodel experiments representing a CO2-brine system  

Science Conference Proceedings (OSTI)

Successful sequestration of CO{sub 2} into deep saline aquifers presents an enormous challenge that requires fundamental understanding of reactive-multi phase flow and transport across many temporal and spatial scales. Of critical importance is accurately predicting the efficiency of CO{sub 2} trapping mechanisms. At the pore scale (e.g., microns to millimeters) the interfacial area between CO{sub 2} and brine, as well as CO{sub 2} and the solid phase, directly influences the amount of CO{sub 2} trapped due to capillary forces, dissolution and mineral precipitation. In this work, we model immiscible displacement micromodel experiments using the lattice-Boltzmann (LB) method. We focus on quantifying interfacial area as a function of capillary numbers and viscosity ratios typically encountered in CO{sub 2} sequestration operations. We show that the LB model adequately predicts the steady-state experimental flow patterns and interfacial area measurements. Based on the steady-state agreement, we use the LB model to investigate interfacial dynamics (e.g., fluid-fluid interfacial velocity and the rate of production of fluid-fluid interfacial area). In addition, we quantify the amount of interfacial area and the interfacial dynamics associated with the capillary trapped nonwetting phase. This is expected to be important for predicting the amount of nonwetting phase subsequently trapped due to dissolution and mineral precipitation.

Porter, Mark L [Los Alamos National Laboratory; Kang, Qinjun [Los Alamos National Laboratory; Tarimala, Sowmitri [Los Alamos National Laboratory; Abdel - Fattah, Amr I [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory; Carey, James W [Los Alamos National Laboratory

2010-12-21T23:59:59.000Z

354

Efficient designs for constrained mixture experiments  

Science Conference Proceedings (OSTI)

Many practical experiments on mixtures (where the components sum to one) include additional lower or upper bounds on components, or on linear combinations of them. Usually theory cannot be used to obtain a good design, and algorithmic methods are necessary. ... Keywords: Algorithms, mixture experiments, optimal design

R. J. Martin; M. C. Bursnall; E. C. Stillman

1999-07-01T23:59:59.000Z

355

Yankee Rowe Decommissioning Experience Record: Volume 1  

Science Conference Proceedings (OSTI)

This report describes Yankee Atomic's experiences in the process of decommissioning the Yankee Rowe nuclear power plant. This volume presents lessons learned during work finished by September 1997. A second volume, to be published in 1998, will complete the experience record. The recommendations and insights in this report will be valuable to other utilities with permanently shutdown plants.

1997-12-31T23:59:59.000Z

356

Title of dissertation: ROTATING, HYDROMAGNETIC LABORATORY EXPERIMENT  

E-Print Network (OSTI)

understanding, and if I live a decade beyond that, everything I paint -- every dot and line -- will be alive. I experiments. In fact, the predominance of inertial modes in our experiments and in other recent work leads, and around the age of fifty, I began to work in earnest, producing numerous designs. It was not until after

Lathrop, Daniel P.

357

Operating and maintenance experience in tritium environments  

Science Conference Proceedings (OSTI)

This presentation is a summary of practical experience gained over more than twenty years from analyzing failures of process equipment operated in tritium and deuterium environments. Significant improvements have been achieved in design and procurement of new equipment, testing and selection of materials, and gradually more favorable maintenance experience. Preferred materials and inspection methods are described. 6 tabs.

Tuer, G.L.

1987-01-01T23:59:59.000Z

358

Experiences of Wiki use in Finnish companies  

Science Conference Proceedings (OSTI)

The objective of our study was two-fold. The first and most important objective was to gather experiences on the use of wiki software in Finnish companies. The second objective was to study the frequency of the use of wikis among Finland's 50 biggest ... Keywords: adoption, company use, motivation, user experience, wiki software

Jani Henriksson; Teemu Mikkonen; Tere Vadn

2008-10-01T23:59:59.000Z

359

User Experience Design Guidelines for Windows Phone  

E-Print Network (OSTI)

User Experience Design Guidelines for Windows Phone The UI Design and Interaction Guide for Windows superseded by the User Experience Design Guidelines for Windows Phone on MSDN ® . There are six parts to the new guidelines: 1. The Windows Phone Platform: Takes a brief look at the types of applications

Narasayya, Vivek

360

Ris-M-2874 Neutron Diffraction Experiments  

E-Print Network (OSTI)

;1. Introduction The nuclear spin systems in metals provide ideal models to test theoretical ideas by experiments Roskilde, Denmark August 1990 #12;Abstract Nuclear spins in silver constitute an ideal antiferromagnetic study the feasibility of neutron diffraction experiments on nuclear magnetic order in silver

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Preliminary results of the echo-seeding experiment at SLAC  

E-Print Network (OSTI)

experiment at NLCTA, SLAC LDRD programme, http://EEHG experiment (ECHO-7) at SLAC has gone from the designgeneration experiment at SLAC, These proceedings, [9] J.H.

Xiang, D.

2010-01-01T23:59:59.000Z

362

Discovering New Light States at Neutrino Experiments  

SciTech Connect

Experiments designed to measure neutrino oscillations also provide major opportunities for discovering very weakly coupled states. In order to produce neutrinos, experiments such as LSND collide thousands of Coulombs of protons into fixed targets, while MINOS and MiniBooNE also focus and then dump beams of muons. The neutrino detectors beyond these beam dumps are therefore an excellent arena in which to look for long-lived pseudoscalars or for vector bosons that kinetically mix with the photon. We show that these experiments have significant sensitivity beyond previous beam dumps, and are able to partially close the gap between laboratory experiments and supernovae constraints on pseudoscalars. Future upgrades to the NuMI beamline and Project X will lead to even greater opportunities for discovery. We also discuss thin target experiments with muon beams, such as those available in COMPASS, and show that they constitute a powerful probe for leptophilic PNGBs.

Essig, Rouven; /SLAC; Harnik, Roni; /Fermilab; Kaplan, Jared; /SLAC; Toro, Natalia; /Stanford U., Phys. Dept.

2011-08-11T23:59:59.000Z

363

Hierarchical Control of the ATLAS Experiment  

E-Print Network (OSTI)

Control systems at High Energy Physics (HEP) experiments are becoming increasingly complex mainly due to the size, complexity and data volume associated to the front-end instrumentation. In particular, this becomes visible for the ATLAS experiment at the LHC accelerator at CERN. ATLAS will be the largest particle detector ever built, result of an international collaboration of more than 150 institutes. The experiment is composed of 9 different specialized sub-detectors that perform different tasks and have different requirements for operation. The system in charge of the safe and coherent operation of the whole experiment is called Detector Control System (DCS). This thesis presents the integration of the ATLAS DCS into a global control tree following the natural segmentation of the experiment into sub-detectors and smaller sub-systems. The integration of the many different systems composing the DCS includes issues such as: back-end organization, process model identification, fault detection, synchronization ...

Barriuso-Poy, Alex; Llobet-Valero, E

2007-01-01T23:59:59.000Z

364

NEAR FIELD MODELING OF SPE1 EXPERIMENT AND PREDICTION OF THE SECOND SOURCE PHYSICS EXPERIMENTS (SPE2)  

SciTech Connect

Motion along joints and fractures in the rock has been proposed as one of the sources of near-source shear wave generation, and demonstrating the validity of this hypothesis is a focal scientific objective of the source physics experimental campaign in the Climax Stock granitic outcrop. A modeling effort has been undertaken by LLNL to complement the experimental campaign, and over the long term provide a validated computation capability for the nuclear explosion monitoring community. The approach involves performing the near-field nonlinear modeling with hydrodynamic codes (e.g., GEODYN, GEODYN-L), and the far-field seismic propagation with an elastic wave propagation code (e.g., WPP). the codes will be coupled together to provide a comprehensive source-to-sensor modeling capability. The technical approach involves pre-test predictions of each of the SPE experiments using their state of the art modeling capabilities, followed by code improvements to alleviate deficiencies identified in the pre-test predictions. This spiral development cycle wherein simulations are used to guide experimental design and the data from the experiment used to improve the models is the most effective approach to enable a transition from the descriptive phenomenological models in current use to the predictive, hybrid physics models needed for a science-based modeling capability for nuclear explosion monitoring. The objective of this report is to describe initial results of non-linear motion predictions of the first two SPE shots in the Climax Stock: a 220-lb shot at a depth of 180 ft (SPE No.1), and a 2570-lb shot at a depth of 150 ft (SPE No.2). The simulations were performed using the LLNL ensemble granite model, a model developed to match velocity and displacement attenuation from HARDHAT, PILE DRIVER, and SHOAL, as well as Russian and French nuclear test data in granitic rocks. This model represents the state of the art modeling capabilities as they existed when the SPE campaign was launched in 2010, and the simulation results presented here will establish a baseline that will be used for gauging progress as planned modeling improvements are implemented during the remainder of the SPE program. The initial simulations were performed under 2D axisymmetric conditions assuming the geologic medium to be a homogeneous half space. However, logging data obtained from the emplacement hole reveal two major faults that intersect the borehole at two different depth intervals (NSTec report, 2011) and four major joint sets. To evaluate the effect of these discrete structures on the wave forms generated they have performed 2D and 3D analysis with a Lagrangian hydrocode, GEODYN-L that shares the same material models with GEODYN but can explicitly take joints and fault into consideration. They discuss results obtained using these two different approaches in this report.

Antoun, T; Xu, H; Vorobiev, O; Lomov, I

2011-10-20T23:59:59.000Z

365

Electrical Transport Experiments at High Pressure  

Science Conference Proceedings (OSTI)

High-pressure electrical measurements have a long history of use in the study of materials under ultra-high pressures. In recent years, electrical transport experiments have played a key role in the study of many interesting high pressure phenomena including pressure-induced superconductivity, insulator-to-metal transitions, and quantum critical behavior. High-pressure electrical transport experiments also play an important function in geophysics and the study of the Earth's interior. Besides electrical conductivity measurements, electrical transport experiments also encompass techniques for the study of the optoelectronic and thermoelectric properties of materials under high pressures. In addition, electrical transport techniques, i.e., the ability to extend electrically conductive wires from outside instrumentation into the high pressure sample chamber have been utilized to perform other types of experiments as well, such as high-pressure magnetic susceptibility and de Haas-van Alphen Fermi surface experiments. Finally, electrical transport techniques have also been utilized for delivering significant amounts of electrical power to high pressure samples, for the purpose of performing high-pressure and -temperature experiments. Thus, not only do high-pressure electrical transport experiments provide much interesting and valuable data on the physical properties of materials extreme compression, but the underlying high-pressure electrical transport techniques can be used in a number of ways to develop additional diagnostic techniques and to advance high pressure capabilities.

Weir, S

2009-02-11T23:59:59.000Z

366

Requirements for the GCFR plenum streaming experiment  

SciTech Connect

This report gives the experiment objectives and generic descriptions of experimental configurations for the gas-cooled fast breeder reactor (GCFR) plenum shield experiment. This report defines four experiment phases. Each phase represents a distinct area of uncertainty in computing radiation transport from the GCFR core to the plenums, through the upper and lower plenum shields, and ultimately to the prestressed concrete reactor vessel (PCRV) liner: (1) the shield heterogeneity phase; (2) the exit shield simulation phase; (3) the plenum streaming phase; and (4) the plenum shield simulation phase.

Perkins, R.G.; Rouse, C.A.; Hamilton, C.J.

1980-09-01T23:59:59.000Z

367

AGS experiments -- 1995, 1996 and 1997  

Science Conference Proceedings (OSTI)

This report contains (1) FY 1995 AGS schedule as run; (2) FY 1996 AGS schedule as run; (3) FY 1997 AGS schedule as run; (4) FY 1998--1999 AGS schedule (proposed); (5) AGS beams 1997; (6) AGS experimental area FY 1995 physics program; (7) AGS experimental area FY 1996 physics program; (8) AGS experimental area FY 1997 physics program; (9) AGS experimental area FY 1998--1999 physics program (proposed); (10) a listing of experiments by number; (11) two-page summaries of each experiment, in order by number; and (12) listing of publications of AGS experiments.

Depken, J.C.; Presti, P.L.

1997-12-01T23:59:59.000Z

368

Scanning and Mapping Strategies for CMB Experiments  

E-Print Network (OSTI)

CMB anisotropy experiments seeking to make maps with more pixels than the 6144 pixels used by the COBE DMR need to address the practical issues of the computer time and storage required to make maps. A simple, repetitive scan pattern reduces these requirements but leaves the experiment vulnerable to systematic errors and striping in the maps. In this paper I give a time-ordered method for map-making with one-horned experiments that has reasonable memory and CPU needs but can handle complex COBE-like scans paths and 1/f noise.

Edward L. Wright

1996-11-29T23:59:59.000Z

369

Student Career Experience Program | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Our Jobs > Opportunities for Students > Student Our Jobs > Opportunities for Students > Student Career Experience Program Student Career Experience Program The Student Career Experience Program (SCEP) is a great way to start your NNSA career while pursuing your studies in college or graduate school. This program gives you the opportunity to combine your academic studies with on-the-job training and experience directly related to your academic program. You will have the opportunity to work on exciting NNSA projects, earn money while serving your nation and take advantage of an excellent benefits package, all while maintaining your student status and completing your education. SCEP allows our managers to evaluate your performance in real work situations and discover first-hand your abilities as a potential

370

Documentation Requirements for Pressurized Experiment Equipment  

NLE Websites -- All DOE Office Websites (Extended Search)

Documentation Requirements for Pressurized Experiment Apparatus Documentation Requirements for Pressurized Experiment Apparatus PSSC NOTE01 15-Jan-2013 When bringing a piece of apparatus to the APS for an experiment that will involve pressure, whether it is to be used on a beamline during a measurement or in a laboratory to prepare the sample prior to the experiment, the hazards associated with the equipment must be reviewed. To review the equipment and make any recommendations, a certain level of documentation must be provided by the experimenter. The length and depth of the documentation should be commensurate with the complexity of the system. 1. Description of apparatus a. Description of the assembly and operation of the system. b. State the maximum working pressure, working fluid (liquid or gas) used to

371

From design experiments to formative interventions  

Science Conference Proceedings (OSTI)

The discussion of design experiments has largely ignored the Vygotskian tradition of formative interventions based on the principle of double stimulation. This tradition offers a radical approach to learning reasearch which focuses on the agency of the ...

Yrj Engestrm

2008-06-01T23:59:59.000Z

372

Confined volume blasting experiments: Description and analysis  

SciTech Connect

A series of bench-scale blasting experiments was conducted to produce rubble beds for use in retorting experiments. The experiments consisted of blasting oil shale with explosives within a confined volume containing 25% void. A variety of blasting geometries was used to control the fragment size distribution and void distribution in the rubble. The series of well controlled tests provided excellent data for use in validating rock fragmentation models. Analyses of the experiments with PRONTO, a dynamic finite element computer code, and a newly developed fracturing model provided good agreement between code predictions and experimental measurements of fracture extent and fragment size. CAROM, a dynamic distinct element code developed to model rock motion during blasting, was used to model the fully fragmented tests. Calculations of the void distribution agreed well with experimentally measured values. 9 refs., 11 figs., 1 tab.

Gorham-Bergeron, E.; Kuszmaul, J.S.; Bickel, T.C.; Shirey, D.L.

1987-01-01T23:59:59.000Z

373

Oceanographic Experiment Design by Simulated Annealing  

Science Conference Proceedings (OSTI)

The oceanographic experiment design problem is discussed in the context of several simple examples drawn from acoustic tomography. The optimization of an objective functionchosen to characterize the array design is carried out using the ...

Norman Barth; Carl Wunsch

1990-09-01T23:59:59.000Z

374

GNSS radio occultation constellation observing system experiments  

Science Conference Proceedings (OSTI)

Observing system experiments within the operational ECMWF data assimilation framework have been performed for summer 2008 when the largest recorded number of GNSS radio occultation observations from both operational and experimental satellites ...

Peter Bauer; Gbor Radnti; Sean Healy; Carla Cardinali

375

State of work on the AMBAL experiment  

SciTech Connect

A diagram of the AMBAL tandem mirror experiment is given. The main topics discussed are the vapor jet, titanium vaporizer, plasma gun, startup injectors, main injectors, diagnostics, and numerical modeling. (MOW)

Hamilton, G.W.

1981-10-02T23:59:59.000Z

376

Students gain work experience at WIPP  

NLE Websites -- All DOE Office Websites (Extended Search)

Students Gain Work Experience at WIPP Students Gain Work Experience at WIPP CARLSBAD, N.M., January 10, 2000 -- Students from two Eddy County high schools are gaining valuable experience by spending time with employees of the Westinghouse Waste Isolation Division and Day & Zimmermann, LLC at the Waste Isolation Pilot Plant (WIPP). Six students from Carlsbad High School and four students from Loving High School are participating in the 1999-2000 WIPP Shadow Program. A "shadow" is a student who teams up with an employee to gain hands-on experience in the workplace. This activity helps the students identify career options and develop confidence. Each student spends three days during the school year with a volunteer mentor at the work location. "This program offers our employees the opportunity to share their knowledge and

377

HEPEX: The Hydrological Ensemble Prediction Experiment  

Science Conference Proceedings (OSTI)

The Hydrological Ensemble Prediction Experiment (HEPEX) is an international project to advance technologies for hydrological forecasting. Its goal is to bring the international hydrological and meteorological communities together to demonstrate ...

John C. Schaake; Thomas M. Hamill; Roberto Buizza; Martyn Clark

2007-10-01T23:59:59.000Z

378

Lagged Average Predictions in a Predictability Experiment  

Science Conference Proceedings (OSTI)

Lagged average predictions are examined here within the context of an idealized predictability experiment. Lagged predictions contribute to making better forecasts than the forecasts obtained from using only the latest initial state. Analytic ...

John O. Roads

1988-01-01T23:59:59.000Z

379

SLAC National Accelerator Laboratory - CERN: Experiments Observe...  

NLE Websites -- All DOE Office Websites (Extended Search)

CERN: Experiments Observe Particle Consistent with Long-sought Higgs Boson July 5, 2012 from CERN At a seminar held at CERN as a curtain raiser to the year's major particle physics...

380

TELEX The Thunderstorm Electrification and Lightning Experiment  

Science Conference Proceedings (OSTI)

The field program of the Thunderstorm Electrification and Lightning Experiment (TELEX) took place in central Oklahoma, MayJune 2003 and 2004. It aimed to improve understanding of the interrelationships among microphysics, kinematics, ...

Donald R. MacGorman; W. David Rust; Conrad L. Ziegler; Edward R. Mansell; Terry J. Schuur; Michael I. Biggerstaff; Jerry M. Straka; Eric C. Bruning; Kristin M. Kuhlman; Nicole R. Lund; Clark Payne; Nicholas S. Biermann; William H. Beasley; Larry D. Carey; Paul R. Krehbiel; William Rison; Kenneth B. Eack

2008-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

ORISE: Recent Graduate Research Experiences - Lindsay Gabbert  

NLE Websites -- All DOE Office Websites (Extended Search)

by the U.S. Department of Homeland Security (DHS) and the U.S. Department of Agriculture, accepts scientists at all levels and provides them with laboratory experience and...

382

The Tropical Warm Pool International Cloud Experiment  

Science Conference Proceedings (OSTI)

A comprehensive dataset describing tropical cloud systems and their environmental setting and impacts has been collected during the Tropical Warm Pool International Cloud Experiment (TWP-ICE) and Aerosol and Chemical Transport in Tropical ...

Peter T. May; James H. Mather; Geraint Vaughan; Keith N. Bower; Christian Jakob; Greg M. McFarquhar; Gerald G. Mace

2008-05-01T23:59:59.000Z

383

Early Experiences with the EGrid Testbed  

Science Conference Proceedings (OSTI)

The Testbed and Applications working group of the European Grid Forum (EGrid) is actively building and experimenting with a grid infrastructure connecting several research-based supercomputing sites located in Europe. This paper reports on our first ...

Gabrielle Allen; Thomas Dramlitsch; Tom Goodale; Gerd Lanfermann; Thomas Radke; Ed Seidel; Thilo Kielmann; Kees Verstoep; Zoltan Balaton; Peter Kacsuk; Ferenc Szalai; Joern Gehring; Axel Keller; Achim Streit; Ludek Matyska; Miroslav Ruda; Ales Krenek; Harald Knipp; Andr Merzky; Alexander Reinefeld; Florian Schintke; Bogdan Ludwiczak; Jarek Nabrzyski; Juliusz Pukacki; Hans-Peter Kersken; Giovanni Aloisio; Massimo Cafaro; Wolfgang Ziegler; Michael Russell

2001-05-01T23:59:59.000Z

384

The Terrain-Induced Rotor Experiment  

Science Conference Proceedings (OSTI)

The Terrain-Induced Rotor Experiment (T-REX) is a coordinated international project, composed of an observational field campaign and a research program, focused on the investigation of atmospheric rotors and closely related phenomena in complex ...

Vanda Grubii?; James D. Doyle; Joachim Kuettner; Richard Dirks; Stephen A. Cohn; Laura L. Pan; Stephen Mobbs; Ronald B. Smith; C. David Whiteman; Stanley Czyzyk; Simon Vosper; Martin Weissmann; Samuel Haimov; Stephan F. J. De Wekker; Fotini Katopodes Chow

2008-10-01T23:59:59.000Z

385

The Atlantic Stratocumulus Transition ExperimentASTEX  

Science Conference Proceedings (OSTI)

The Atlantic Stratocumulus Experiment (ASTEX) was conducted over the northeast Atlantic Ocean during June 1992 with substantial international collaboration. The main goal of ASTEX was to study the climatologically important transition between ...

Bruce A. Albrecht; Christopher S. Bretherton; Doug Johnson; Wayne H. Scubert; A. Shelby Frisch

1995-06-01T23:59:59.000Z

386

The THORPEX Observation Impact Intercomparison Experiment  

Science Conference Proceedings (OSTI)

An experiment is being conducted to directly compare the impact of all assimilated observations on short-range forecast errors in different forecast systems using an adjoint-based technique. The technique allows detailed comparison of observation ...

Ronald Gelaro; Rolf H. Langland; Simon Pellerin; Ricardo Todling

2010-11-01T23:59:59.000Z

387

Plasma Dynamo Experiments Cary Forest PPPL Colloquium  

NLE Websites -- All DOE Office Websites (Extended Search)

Dynamo Experiments Cary Forest PPPL Colloquium 5 th June 2013 Wednesday, June 5, 13 So many dynamos (s men dnuh-mz), 1. a phrase which reads the same backwards and...

388

ATLAS distributed computing: experience and evolution  

E-Print Network (OSTI)

The ATLAS experiment has just concluded its first running period which commenced in 2010. After two years of remarkable performance from the LHC and ATLAS, the experiment has accumulated more than 25/fb of data. The total volume of beam and simulated data products exceeds 100~PB distributed across more than 150 computing centres around the world, managed by the experiment's distributed data management system. These sites have provided up to 150,000 computing cores to ATLAS's global production and analysis processing system, enabling a rich physics programme including the discovery of the Higgs-like boson in 2012. The wealth of accumulated experience in global data-intensive computing at this massive scale, and the considerably more challenging requirements of LHC computing from 2015 when the LHC resumes operation, are driving a comprehensive design and development cycle to prepare a revised computing model together with data processing and management systems able to meet the demands of higher trigger rates, e...

Nairz, A; The ATLAS collaboration

2013-01-01T23:59:59.000Z

389

Student Career Experience Program | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

This program gives you the opportunity to combine your academic studies with on-the-job training and experience directly related to your academic program. You will have the...

390

Solar axion search with the CAST experiment  

E-Print Network (OSTI)

The CAST (CERN Axion Solar Telescope) experiment is searching for solar axions by their conversion into photons inside the magnet pipe of an LHC dipole. The analysis of the data recorded during the first phase of the experiment with vacuum in the magnet pipes has resulted in the most restrictive experimental limit on the coupling constant of axions to photons. In the second phase, CAST is operating with a buffer gas inside the magnet pipes in order to extent the sensitivity of the experiment to higher axion masses. We will present the first results on the $^{4}{\\rm He}$ data taking as well as the system upgrades that have been operated in the last year in order to adapt the experiment for the $^{3}{\\rm He}$ data taking. Expected sensitivities on the coupling constant of axions to photons will be given for the recent $^{3}{\\rm He}$ run just started in March 2008.

CAST Collaboration; E. Arik; S. Aune; D. Autiero; K. Barth; A. Belov; B. Beltrn; S. Borghi; F. S. Boydag; H. Bruninger; G. Cantatore; J. M. Carmona; S. A. Cetin; J. I. Collar; T. Dafni; M. Davenport; L. Di Lella; O. B. Dogan; C. Eleftheriadis; N. Elias; G. Fanourakis; E. Ferrer-Ribas; H. Fischer; J. Franz; J. Galn; E. Gazis; T. Geralis; I. Giomataris; S. Gninenko; H. Gmez; M. Hasinoff; F. H. Heinsius; I. Hikmet; D. H. H. Hoffmann; I. G. Irastorza; J. Jacoby; K. Jakov?i?; D. Kang; T. Karageorgopoulou; M. Karuza; K. Knigsmann; R. Kotthaus; M. Kr?mar; K. Kousouris; M. Kuster; B. Laki?; C. Lasseur; A. Liolios; A. Ljubi?i?; V. Lozza; G. Lutz; G. Luzn; D. Miller; J. Morales; T. Niinikoski; A. Nordt; A. Ortiz; T. Papaevangelou; M. J. Pivovaroff; A. Placci; G. Raiteri; G. Raffelt; H. Riege; A. Rodrguez; J. Ruz; I. Savvidis; Y. Semertzidis; P. Serpico; S. K. Solanki; R. Soufli; L. Stewart; M. Tsagri; K. van Bibber; J5D. Villar; J. Vogel; L. Walckiers; K. Zioutas

2008-10-10T23:59:59.000Z

391

The Mixed-Phase Arctic Cloud Experiment  

Science Conference Proceedings (OSTI)

The Mixed-Phase Arctic Cloud Experiment (M-PACE) was conducted from 27 September through 22 October 2004 over the Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF) on the North Slope of Alaska. The ...

J. Verlinde; J. Y. Harrington; V. T. Yannuzzi; A. Avramov; S. Greenberg; S. J. Richardson; C. P. Bahrmann; G. M. McFarquhar; G. Zhang; N. Johnson; M. R. Poellot; J. H. Mather; D. D. Turner; E. W. Eloranta; D. C. Tobin; R. Holz; B. D. Zak; M. D. Ivey; A. J. Prenni; P. J. DeMott; J. S. Daniel; G. L. Kok; K. Sassen; D. Spangenberg; P. Minnis; T. P. Tooman; M. Shupe; A. J. Heymsfield; R. Schofield

2007-02-01T23:59:59.000Z

392

User experience design of complex systems  

E-Print Network (OSTI)

Over recent years, the global marketplace and its consumers have developed a mutual recognition for the rising prominence of design that delivers high quality user experience. For the provider of products and services, ...

Reily, Todd R. (Todd Richard)

2012-01-01T23:59:59.000Z

393

Fermilab | Science at Fermilab | Experiments & Projects | Proposed...  

NLE Websites -- All DOE Office Websites (Extended Search)

Frontier Proposed Projects and Experiments LBNE Mu2e Project X NOvA MicroBooNE MICE Dark Energy Survey LSST The MINERvA Full Module Prototype plane moves into the NuMI...

394

The First Experiment at the LCLS  

NLE Websites -- All DOE Office Websites (Extended Search)

| 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed The First Experiment at the LCLS SEPTEMBER 29, 2009 Bookmark and Share Standing left to right: Elliot Kanter, Robin...

395

Exploring the user experience through collage  

Science Conference Proceedings (OSTI)

We explore the use of collage in requirements elicitation, as a tool to support potential end-users in expressing their impressions, understanding, and emotions regarding a system. Keywords: cultural probes, experience-centered design, phenomenology, requirements elicitation, thematic analysis

Dana McKay; Sally Jo Cunningham; Kirsten Thomson

2006-07-01T23:59:59.000Z

396

The Immigration Experience in Saskatchewan's Labour Market  

E-Print Network (OSTI)

The Immigration Experience in Saskatchewan's Labour Market Douglas Durst Faculty of Social Work April 2008 #12;© April 2008, Douglas Durst All rights reserved Douglas Durst doug.durst

Argerami, Martin

397

Data Assimilation and Model Evaluation Experiment Datasets  

Science Conference Proceedings (OSTI)

The Institute for Naval Oceanography, in cooperation with Naval Research Laboratories and universities, executed the Data Assimilation and Model Evaluation Experiment (DAME) for the Gulf Stream region during fiscal years 19911993. Enormous ...

Chung-Chieng A. Lai; Wen Qian; Scott M. Glenn

1994-05-01T23:59:59.000Z

398

Operating Experience Summary 2003-17  

NLE Websites -- All DOE Office Websites (Extended Search)

OPERATING EXPERIENCE SUMMARY U.S. Department of Energy Office of Environment, Safety and Health OE Summary 2003-17 August 25, 2003 * Underrated and unmaintained hoist used to lift...

399

Large-Scale Hydrogen Combustion Experiments  

Science Conference Proceedings (OSTI)

Large-scale combustion experiments show that deliberate ignition can limit hydrogen accumulation in reactor containments. The collected data allow accurate evaluation of containment pressures and temperatures associated with hydrogen combustion.

1988-10-18T23:59:59.000Z

400

The CarboEurope Regional Experiment Strategy  

Science Conference Proceedings (OSTI)

Quantification of sources and sinks of carbon at global and regional scales requires not only a good description of the land sources and sinks of carbon, but also of the synoptic and mesoscale meteorology. An experiment was performed in Les ...

A. J. Dolman; L. Tolk; R. Ronda; J. Noilhan; C. Sarrat; A. Brut; B. Piguet; P. Durand; A. Butet; N. Jarosz; Y. Brunet; D. Loustau; E. Lamaud; F. Miglietta; B. Gioli; V. Magliulo; M. Esposito; C. Gerbig; S. Krner; P. Glademard; M. Ramonet; P. Ciais; B. Neininger; R. W. A. Hutjes; J. A. Elbers; R. Macatangay; O. Schrems; G. Prez-Landa; M. J. Sanz; Y. Scholz; G. Facon; E. Ceschia; P. Beziat

2006-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Summer Monsoon ExperimentA Review  

Science Conference Proceedings (OSTI)

This paper presents a short summary of the Summer Monsoon Experiment (MONEX). The review is largely based on those papers that have made use of the summer MONEX observations during 1979. 0bservational aspects of this study emphasize the annual ...

T. N. Krishnamurti

1985-09-01T23:59:59.000Z

402

ARM - Field Campaign - Aerosol Lidar Validation Experiment -...  

NLE Websites -- All DOE Office Websites (Extended Search)

govCampaignsAerosol Lidar Validation Experiment - ALIVE Campaign Links ALIVE Website Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA....

403

Experiments with interacting Bose and Fermi gases  

E-Print Network (OSTI)

In the past few years, the study of trapped fermionic atoms evolved from the first cooling experiments which produced quantum degenerate samples to becoming one of the most exciting branches of current atomic physics ...

Stan, Claudiu Andrei

2005-01-01T23:59:59.000Z

404

Yankee Rowe Decommissioning Experience Record: Volume 2  

Science Conference Proceedings (OSTI)

This report describes Yankee Atomic Electric Company's (YAEC) recent experiences in the process of decommissioning the Yankee Rowe nuclear power plant. This volume supplements Volume 1 by presenting more lessons learned during work finished by September 1998. In 1999, EPRI will publish a final report completing the experience record. The recommendations and insights in this report will be valuable to other utilities with permanently shut down plants.

1998-12-18T23:59:59.000Z

405

Plasma flow switch experiment on Procyon  

SciTech Connect

This report presents the results obtained from a series of plasma flow switch experiments done on the Procyon explosive pulse power generator. These experiments involved switching into a fixed inductance dummy load and also into a dynamic implosion load. The results indicated that the switch did fairly well at switching current into the load, but the results for the implosion are more ambiguous. The results are compared to calculations and the implications for future plasma flow switch work are discussed.

Benage, J.F. Jr.; Bowers, R.; Peterson, D. [and others

1995-09-01T23:59:59.000Z

406

The KATRIN Experiment: Status and Outlook  

E-Print Network (OSTI)

The KATRIN experiment, presently under construction in Karlsruhe, Germany, will improve on previous laboratory limits on the neutrino mass by a factor of ten. KATRIN will use a high-activity, gaseous T2 source and a very high-resolution spectrometer to measure the shape of the high-energy tail of the tritium-decay beta spectrum. The shape measurement will also be sensitive to new physics, including sterile neutrinos and Lorentz violation. This report summarizes recent progress in the experiment.

Parno, D S

2013-01-01T23:59:59.000Z

407

The KATRIN Experiment: Status and Outlook  

E-Print Network (OSTI)

The KATRIN experiment, presently under construction in Karlsruhe, Germany, will improve on previous laboratory limits on the neutrino mass by a factor of ten. KATRIN will use a high-activity, gaseous T2 source and a very high-resolution spectrometer to measure the shape of the high-energy tail of the tritium-decay beta spectrum. The shape measurement will also be sensitive to new physics, including sterile neutrinos and Lorentz violation. This report summarizes recent progress in the experiment.

D. S. Parno

2013-07-19T23:59:59.000Z

408

The ATLAS Experiment on YouTube  

DOE Data Explorer (OSTI)

ATLAS is a particle physics experiment at the Large Hadron Collider at CERN. The ATLAS detector is searching for new discoveries in the head-on collisions of protons of extraordinarily high energy. ATLAS will learn about the basic forces that have shaped our Universe since the beginning of time and that will determine its fate. Among the possible unknowns are the origin of mass, extra dimensions of space, unification of fundamental forces, and evidence for dark matter candidates in the Universe [copied from http://atlas.ch/]. Approximately 700 physicists, engineers and graduate students from 44 U.S. institutions, including four DOE laboratories, participate in the ATLAS collaboration. In addition to the Collaboration's home page and numerous ATLAS-related pages at the various research organizations involved, there are two primary ATLAS websites that provide the full range of information about this experiment at the Large Hadron Collider in at CERN, Switzerland. The main ATLAS Experiment page hosted by CERN is found at http://atlas.ch/, while the home page specifically for the U.S. contribution to ATLAS is at http://www.uslhc.us/The_US_and_the_LHC/Experiments/ATLAS. Likewise, videos and multimedia from the inception and construction of ATLAS and continuing on through current operations and scientific discoveries are found everywhere from Brookhaven Lab to YouTube to an official collection at the ATLAS Experiment page at CERN. This DDE record guides you to the ATLAS Experiment Channel on YouTube.

409

Statistical design of a uranium corrosion experiment  

DOE Green Energy (OSTI)

This work supports an experiment being conducted by Roland Schulze and Mary Ann Hill to study hydride formation, one of the most important forms of corrosion observed in uranium and uranium alloys. The study goals and objectives are described in Schulze and Hill (2008), and the work described here focuses on development of a statistical experiment plan being used for the study. The results of this study will contribute to the development of a uranium hydriding model for use in lifetime prediction models. A parametric study of the effect of hydrogen pressure, gap size and abrasion on hydride initiation and growth is being planned where results can be analyzed statistically to determine individual effects as well as multi-variable interactions. Input to ESC from this experiment will include expected hydride nucleation, size, distribution, and volume on various uranium surface situations (geometry) as a function of age. This study will also address the effect of hydrogen threshold pressure on corrosion nucleation and the effect of oxide abrasion/breach on hydriding processes. Statistical experiment plans provide for efficient collection of data that aids in understanding the impact of specific experiment factors on initiation and growth of corrosion. The experiment planning methods used here also allow for robust data collection accommodating other sources of variation such as the density of inclusions, assumed to vary linearly along the cast rods from which samples are obtained.

Wendelberger, Joanne R [Los Alamos National Laboratory; Moore, Leslie M [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

410

PHENIX EXPERIMENT AT RHIC: DECADAL PLAN 2004-2013  

Science Conference Proceedings (OSTI)

The PHENIX Collaboration has developed a plan for the detailed investigation of quantum chromodynamics in the next decade. The demonstrated capabilities of the PHENIX experiment to measure rare processes in hadronic, leptonic and photonic channels, in combination with RHIC's unparalleled flexibility as a hadronic collider, provides a physics program of extraordinary breadth and depth. A superlative set of measurements to elucidate the states of both hot and cold nuclear matter, and to measure the spin structure of the proton has been identified. The components of this plan include: (1) Definitive measurements that will establish the nature of the matter created in nucleus+nucleus collisions, that will determine if the description of such matter as a quark-gluon plasma is appropriate, and that will quantify both the equilibrium and non-equilibrium features of the produced medium. (2) Precision measurements of the gluon structure of the proton, and of the spin structure of the gluon and sea-quark distributions of the proton via polarized proton+proton collisions. (3) Determination of the gluon distribution in cold nuclear matter using proton+nucleus collisions. Each of these fundamental fields of investigation will be addressed through a program of correlated measurements in some or all of the following channels: (1) Particle production at high transverse momentum, studied via single particle inclusive measurements of identified charged and neutral hadrons, multi-particle correlations and jet production. (2) Direct photon, photon+jet and virtual photon production. (3) Light and heavy vector mesons. (4) Heavy flavor production. These measurements, together with the established PHENIX abilities to identify hadrons at low transverse momentum, to perform detailed centrality selections, and to monitor polarization and luminosity with high precision create a superb opportunity for performing world-class science with PHENIX for the next decade. A portion of this program is achievable using the present capabilities of PHENIX experimental apparatus, but the physics reach is considerably extended and the program made even more compelling by a proposed set of upgrades which include: (1) An aerogel and time-of-flight system to provide complete {pi}/K/p separation for momenta up to 10 GeV/c. (2) A vertex detector to detect displaced vertices from the decay of mesons containing charm or bottom quarks. (3) A hadron-blind detector to detect and track electrons near the vertex. (4) A micro-TPC to extend the range of PHENIX tracking in azimuth and pseudo-rapidity. (5) A forward detector upgrade for an improved muon trigger to preserve sensitivity at the highest projected RHIC luminosities. (6) A forward calorimeter to provide photon+jet studies over a wide kinematic range. The success of the proposed program is contingent upon several factors external to PHENIX. Implementation of the upgrades is predicated on the availability of R&D funds to develop the required detector technologies on a timely, and in some cases urgent, basis. The necessity for such funding, and the physics merit of the proposed PHENIX program, has been endorsed in the first meeting of BNL's Detector Advisory Committee in December, 2002. Progress towards the physics goals depends in an essential way on the development of the design values for RHIC luminosity, polarization and availability. An analysis based on the guidance from the Collider Accelerator Department indicates that moderate increases in the yearly running time lead to very considerable increases in progress toward the enunciated goals. Efficient access to the rarest probes in the proposed program is achieved via the order-of-magnitude increase in luminosity provided by RHIC-II.

ZAJC,W.ET. AL.

2003-11-30T23:59:59.000Z

411

Incorporating Experience Curves in Appliance Standards Analysis  

Science Conference Proceedings (OSTI)

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

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

2011-10-31T23:59:59.000Z

412

AGR-1 Irradiation Experiment Test Plan  

DOE Green Energy (OSTI)

This document presents the current state of planning for the AGR-1 irradiation experiment, the first of eight planned irradiations for the Advanced Gas Reactor (AGR) Fuel Development and Qualification Program. The objectives of the AGR-1 experiment are: 1. To gain experience with multi-capsule test train design, fabrication, and operation with the intent to reduce the probability of capsule or test train failure in subsequent irradiation tests. 2. To irradiate fuel produced in conjunction with the AGR fuel process development effort. 3. To provide data that will support the development of an understanding of the relationship between fuel fabrication processes, fuel product properties, and irradiation performance. In order to achieve the test objectives, the AGR-1 experiment will be irradiated in the B-10 position of the Advanced Test Reactor (ATR) at the Idaho National Laboratory (INL). The test will contain six independently controlled and monitored capsules. Each capsule will contain a single type, or variant, of the AGR coated fuel. The irradiation is planned for about 700 effective full power days (approximately 2.4 calendar years) with a time-averaged, volume-average temperature of approximately 1050 C. Average fuel burnup, for the entire test, will be greater than 17.7 % FIMA, and the fuel will experience fast neutron fluences between 2.4 and 4.5 x 1025 n/m2 (E>0.18 MeV).

John T. Maki

2009-10-01T23:59:59.000Z

413

Fuel Cell Power Plant Experience Naval Applications  

NLE Websites -- All DOE Office Websites (Extended Search)

clean clean Fuel Cell Power Plant Experience Naval Applications US Department of Energy/ Office of Naval Research Shipboard Fuel Cell Workshop Washington, DC March 29, 2011 FuelCell Energy, the FuelCell Energy logo, Direct FuelCell and "DFC" are all registered trademarks (®) of FuelCell Energy, Inc. *FuelCell Energy, Inc. *Renewable and Liquid Fuels Experience *HTPEM Fuel Cell Stack for Shipboard APU *Solid Oxide Experience and Applications DOE-ONR Workshop FuelCell Energy, the FuelCell Energy logo, Direct FuelCell and "DFC" are all registered trademarks (®) of FuelCell Energy, Inc. FuelCell Energy, Inc. * Premier developer of fuel cell technology - founded in 1969 * Over 50 power installations in North America, Europe, and Asia * Industrial, commercial, utility

414

Research Laboratory Experiments with Energy Efficiency Upgrades |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades August 30, 2012 - 11:52am Addthis Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Julie McAlpin Communications Liaison, State Energy Program

415

Argonne CNM: End-of-Experiment Survey  

NLE Websites -- All DOE Office Websites (Extended Search)

End-of-Experiment Survey End-of-Experiment Survey Project Information 1. What is your proposal number? Administrative Support 1. The processing of my experiment proposal was: Excellent Satisfactory Marginal Unsatisfactory 2. The efficiency of the processing and orientation procedure was: Excellent Satisfactory Marginal Unsatisfactory 3. The documentation available on the CNM web site to prepare you for your visit was: Excellent Satisfactory Marginal Unsatisfactory Comments about overall support: Environment, Safety and Health (ES&H) 1. The safety review/work authorization process was: Excellent Satisfactory Marginal Unsatisfactory Comments on safety review, including suggested improvements to the forms used: 2. With respect to stated objectives, the content provided in ESH 100U and CNM User Orientation is:

416

Microprocessors in physics experiments at SLAC  

SciTech Connect

The increasing size and complexity of high energy physics experiments is changing the way data are collected. To implement a trigger or event filter requires complex logic which may have to be modified as the experiment proceeds. Simply to monitor a detector, large amounts of data must be processed on line. The use of microprocessors or other programmable devices can help to achieve these ends flexibly and economically. At SLAC, a number of microprocessor-based systems have been built and are in use in experimental setups, and others are now being developed. This talk is a review of existing systems and their use in experiments, and of developments in progress and future plans.

Rochester, L.S.

1981-04-01T23:59:59.000Z

417

BOUNDARY EFFECTS IN ROTATING-PLASMA EXPERIMENTS  

SciTech Connect

The problem of current continuity and viscous drag at the boundaries in rotating-plasma experiments is discussed. A hypothetical model having a steady state with axial symmetry is emphasized; it is shown that the discharge impedance derived from this model does not agree with many observations. The Homopolar III'' experiment is described in which the flux surfaces were strongly convex and parallel to the toroidal-shaped electrodes. In this way friction at the insulators was reduced. But the structure of the discharge deviated drastically from axial symmetry near the outer surface. Several studies led to the conclusion that the flow pattern probably involved secondary flows. A detailed analysis of this structure was not possible. It was also found that the rotational speed could not be raised above a few cm/ mu sec because the insulators failed in spite of the special design of the experiment. 28 references. (auth)

Kunkel, W.B.; Baker, W.R.; Bratenahl, A.; Halbach, K.

1962-08-01T23:59:59.000Z

418

Data Quality of Quality Measurement Experiments  

NLE Websites -- All DOE Office Websites (Extended Search)

Data Quality of Quality Measurement Experiments Data Quality of Quality Measurement Experiments S. Bottone and S. Moore Mission Research Corporation Santa Barbara, California Introduction Quality Measurement Experiments (QME) are a special class of Value-Added Products (VAP). QMEs add value to Atmospheric Radiation Measurement (ARM) Program datastreams by providing for continuous assessment of the quality of incoming data based on internal consistency checks, comparisons between independent similar measurements, or comparisons between measurements and modeled results. Like any datastream, QME datastreams need to be checked for data quality. For each QME, we analyze a representative sample of files from the ARM data archive to determine 'typical' values of the QME variables. We then design outlier tests, specific to each variable, to be applied to

419

Neutrino Oscillation Experiments at Nuclear Reactors  

E-Print Network (OSTI)

In this paper I give an overview of the status of neutrino oscillation experiments performed using nuclear reactors as sources of neutrinos. I review the present generation of experiments (Chooz and Palo Verde) with baselines of about 1 km as well as the next generation that will search for oscillations with a baseline of about 100 km. While the present detectors provide essential input towards the understanding of the atmospheric neutrino anomaly, in the future, the KamLAND reactor experiment represents our best opportunity to study very small mass neutrino mixing in laboratory conditions. In addition KamLAND with its very large fiducial mass and low energy threshold, will also be sensitive to a broad range of different physics.

Giorgio Gratta

1999-05-06T23:59:59.000Z

420

Student Career Experience Program | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Apply for Our Jobs > How to Apply > Student Apply for Our Jobs > How to Apply > Student Jobs > Student Career Experience Program Student Career Experience Program We have a limited number of Student Career Experience Program (SCEP) positions that are located in the greater Washington, D.C. area and in Albuquerque, N.M. Other locations may include Kansas City, Mo.; Livermore, Calif.; Los Alamos, N.M.; Las Vegas, Nev.; Amarillo, Texas; Aiken, S.C.; and Oak Ridge, Tenn. We work with local universities to recruit students for this program. Please contact your university's career center to see if NNSA is a partner with your school. SCEP positions must be directly related to your academic program. For SCEP eligibility you must be: a United States citizen; enrolled as a diploma or degree-seeking undergraduate or graduate

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Research Laboratory Experiments with Energy Efficiency Upgrades |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades Research Laboratory Experiments with Energy Efficiency Upgrades August 30, 2012 - 11:52am Addthis Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Energy efficiency upgrades -- such as geothermal heating and cooling, nanogel-filled windows, and lighting sensors -- will help the University of Kentucky Center for Applied Energy Research reduce energy use and save money. | Photo courtesy of the University of Kentucky. Julie McAlpin Communications Liaison, State Energy Program

422

The Washington State Experience Energy Code Compliance  

NLE Websites -- All DOE Office Websites (Extended Search)

Washington State Experience Washington State Experience Residential Energy Code Compliance Gary Nordeen Senior Building Science Specialist April 4, 2013 WSU Energy Program Provides energy services, products, education and information for: * Businesses * Utilities ̶ public and private * Governments ̶ state and local * Tribes * Federal agencies * Manufacturing plants * Educational facilities * National laboratories WSU Energy Program Building Science Team * Residential energy code technical assistance * Voluntary programs, Northwest ENERGYSTAR Homes * Research and development, Building America * Community-based upgrade programs * Industry training and certifications ̶ HERS, BPI, ENERGY STAR, PTCS Staff provides building science expertise for: WSU Energy Program

423

AN EXPERIMENT ON DEHASIDDHI WITH MERCURY  

E-Print Network (OSTI)

ABSTRACT: The author experimented with the dehasiddhi using mercury. The interesting experiment is narrated in this article. The land of Bharath is the only place which developed the science dealing with the metal remedies for holistic health during the Vedic period when people in other parts of the world continued to use potions and witchcraft to cure diseases of the body. This science in Vedic language is termed rasa sastra. It uses metals such as iron, copper, silver, gold mercury, elements such as iron, copper, silver, gold mercury, elements such as sulphur, mica and other materials such as shells, pearls corals jewels, salts, etc in a purified and processed form for internal

M. P Alexander

1995-01-01T23:59:59.000Z

424

Low Energy Antiproton Experiments - A Review  

SciTech Connect

Low energy antiprotons offer excellent opportunities to study properties of fundamental forces and symmetries in nature. Experiments with them can contribute substantially to deepen our fundamental knowledge in atomic, nuclear and particle physics. Searches for new interactions can be carried out by studying discrete symmetries. Known interactions can be tested precisely and fundamental constants can be extracted from accurate measurements on free antiprotons (p-bar's) and bound two- and three-body systems such as antihydrogen (H-bar = p-bare-), the antprotonic helium ion (He++p-bar)+ and the antiprotonic atomcule (He++p-bare-) . The trapping of a single p-bar in a Penning trap, the formation and precise studies of antiprotonic helium ions and atoms and recently the production of H-bar have been among the pioneering experiments. They have led already to precise values for p-bar parameters, accurate tests of bound two- and three-body Quantum Electrodynamics (QED), tests of the CPT theorem and a better understanding of atom formation from their constituents. Future experiments promise more precise tests of the standard theory and have a robust potential to discover new physics. Precision experiments with low energy p-bar's share the need for intense particle sources and the need for time to develop novel instrumentation with all other experiments, which aim for high precision in exotic fundamental systems. The experimental programs - carried out in the past mostly at the former LEAR facility and at present at the AD facility at CERN - would benefit from intense future sources of low energy p-bar's. The highest possible p-bar fluxes should be aimed for at new facilities such as the planned FLAIR facility at GSI in order to maximize the potential of delicate precision experiments to influence model building. Examples of key p-bar experiments are discussed here and compared with other experiments in the field. Among the central issues is their potential to obtain important information on basic symmetries such as CPT and to gain insights into antiparticle gravitation as well as the possibilities to learn about nuclear neutron distributions.

Jungmann, Klaus P. [Kernfysisch Versneller Instituut, Rijksuniversiteit Groningen, Zernikelaan 25, 9747AA Groningen (Netherlands)

2005-10-19T23:59:59.000Z

425

Status and Commissioning of the CMS Experiment  

E-Print Network (OSTI)

After a brief overview of the Compact Muon Solenoid (CMS) experiment, the status of construction and installation is described in the first part of the note. The second part of the document is devoted to a discussion of the general commissioning strategy of the CMS experiment, with a particular emphasis on trigger, calibration and alignment. Aspects of b-physics, as well as examples for early physics with CMS are also presented. CMS will be ready for data taking in time for the first collisions in the Large Hadron Collider (LHC) at CERN in late 2007.

O. Buchmueller; F. -P. Schilling

2007-01-11T23:59:59.000Z

426

Analysis of the Impurity Flow Reversal Experiment  

DOE Green Energy (OSTI)

Experiments performed on the Impurity Study Experiment (ISX-A) tokamak have shown that poloidally asymmetric injection of hydrogen gas can alter the inward transport of injected impurity atoms. We have compared the observed transport times and the magnitude of the flow reversal effect with a model based on the neoclassical theory of impurity transport and find that the observations are consistent with the theory. However, uncertainities in the radial profiles and the atomic rate coefficients do not permit a truly definitive test of the theory.

Burrell, K.H.; Wong, S.K.; Amano, T.

1979-03-01T23:59:59.000Z

427

Monitoring hydraulic fracture growth: Laboratory experiments  

Science Conference Proceedings (OSTI)

The authors carry out small-scale hydraulic fracture experiments to investigate the physics of hydraulic fracturing. The laboratory experiments are combined with time-lapse ultrasonic measurements with active sources using both compressional and shear-wave transducers. For the time-lapse measurements they focus on ultrasonic measurement changes during fracture growth. As a consequence they can detect the hydraulic fracture and characterize its shape and geometry during growth. Hence, this paper deals with fracture characterization using time-lapse acoustic data. Hydraulic fracturing is used in the oil and gas industry to stimulate reservoir production.

Groenenboom, J.; Dam, D.B. van

2000-04-01T23:59:59.000Z

428

Piping inspection carriage having axially displaceable sensor  

DOE Patents (OSTI)

A pipe inspection instrument carriage is described for use with a pipe crawler for performing internal inspections of piping surfaces. The carriage has a front leg assembly, a rear leg assembly and a central support connecting the two assemblies and for mounting an instrument arm having inspection instruments. The instrument arm has a Y-arm mounted distally thereon for axially aligning the inspection instrumentation and a mounting block, a linear actuator and axial movement arm for extending the inspection instruments radially outward to operably position the inspection instruments on the piping interior. Also, the carriage has a rotation motor and gear assembly for rotating the central support and the front leg assembly with respect to the rear leg assembly so that the inspection instruments azimuthally scan the piping interior. The instrument carriage allows performance of all piping inspection operations with a minimum of moving parts, thus decreasing the likelihood of performance failure. 4 figures.

Zollinger, W.T.; Treanor, R.C.

1994-12-06T23:59:59.000Z

429

Floor-supply displacement ventilation system  

E-Print Network (OSTI)

Research on indoor environments has received more attention recently because reports of symptoms and other health complaints related to indoor environments have been increasing. Heating, ventilating, and air-conditioning ...

Kobayashi, Nobukazu, 1967-

2001-01-01T23:59:59.000Z

430

Busbar Displacement Study of Aluminum Reduction Cell  

Science Conference Proceedings (OSTI)

Cryoscopic Data for Hall-Hroult Bath Containing Magnesium Fluoride, Calcium Fluoride, Potassium Cryolite, and Sodium Chloride Current Distribution and...

431

Air Emissions and Oil Displacement Benefits  

E-Print Network (OSTI)

, Washington, DC). 31. US Environmental Protection Agency (2007) EGRID Emission Data for 2005 (Clean Energy

Michalek, Jeremy J.

432

Compositionally Dependent Displacive Transformation from Beta to ...  

Science Conference Proceedings (OSTI)

... quenching from single beta phase field. The present study primarily focuses on possibly a new class of solid-solid mixed mode beta to omega transformation...

433

NISTIR 7244 Initial Evaluation of Displacement Ventilation ...  

Science Conference Proceedings (OSTI)

... temperature of 32.2 C. The schedule for the thermostat settings differs ... Boiler 3.70E+06 3.84E+06 1.41E+06 1.86E ... "Achieving Dry Outside Air in an ...

2006-10-03T23:59:59.000Z

434

Cooling airflow design tool for displacement ventilation.  

E-Print Network (OSTI)

withEquation 7.4oftheASHRAEDesignGuidelinesforefficiency air diffusers. The ASHRAE method does not takeVentilation Atlanta: ASHRAE. Jiang, Z. , Chen, Q. , and

Schiavon, Stefano; Bauman, Fred

2009-01-01T23:59:59.000Z

435

Plasma deposited rider rings for hot displacer  

DOE Patents (OSTI)

A hot cylinder for a cryogenic refrigerator having two plasma spray deposited rider rings of a corrosion and abrasion resistant material provided in the rider ring grooves, wherein the rider rings are machined to the desired diameter and width after deposition. The rider rings have gas flow flats machined on their outer surface.

Kroebig, Helmut L. (Rolling Hills, CA)

1976-01-01T23:59:59.000Z

436

Cooling airflow design tool for displacement ventilation.  

E-Print Network (OSTI)

zone. HeatloadfromheatconductionthroughtheroomTotalheatloadfromheatconductionthroughtheroomthe heat gain from heat conduction through the room envelope

Schiavon, Stefano; Bauman, Fred

2009-01-01T23:59:59.000Z

437

Displacement speeds in turbulent premixed flame simulations  

E-Print Network (OSTI)

Wycko?, P. S. , Combust. Flame, 110(12):92112 (1997). [9]Carter, C. D. , Combust. Flame, 133(3):323334 (2003). [12]and Faeth, G. M. , Combust. Flame, 95:410425 (1993). [15

Day, Marcus S.; Shepherd, Ian G.; Bell, J.; Grcar, Joseph F.; Lijewski, Michael J.

2008-01-01T23:59:59.000Z

438

Phase-one experiment test plan solar photovoltaic/thermal residential experiment  

DOE Green Energy (OSTI)

Objectives, rationale, and method of a one-year experiment using a residential photovoltaic/thermal power system are presented. Data will be both archived and processed to investigate: (1) series heat pump system performance, and (2) electric utility impacts. A parallel heat pump system will be investigated in a subsequent experiment.

Kern, E.C. Jr.

1979-03-15T23:59:59.000Z

439

Heart Failure:Heart Failure: The Patient's ExperienceThe Patient's Experience  

E-Print Network (OSTI)

1 Heart Failure:Heart Failure: The Patient's ExperienceThe Patient's Experience Jason Ryan, MD, MPHJason Ryan, MD, MPH CoCo--director, UCONN Heart Failure Centerdirector, UCONN Heart Failure Center,084,000 $34.8 billion Background on Heart FailureBackground on Heart Failure 1 Heart failure (HF) is a major

Oliver, Douglas L.

440

The Earth Radiation Budget Experiment (ERBE)  

Science Conference Proceedings (OSTI)

The Earth Radiation Budget Experiment (ERBE) is the first multi-satellite system designed to measure the Earth's radiation budget. It will fly on a low-inclination NASA satellite and two Sun-synchronous NOAA satellites during the mid-1980s. Each ...

Bruce R. Barkstrom

1984-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

The ambient wood journals: replaying the experience  

Science Conference Proceedings (OSTI)

The Ambient Wood project aims to facilitate a learning experience using an adaptive infrastructure in an outdoor environment. This involves sensor technology, virtual world orchestration, and a wide range of devices ranging from hand-held computers to ... Keywords: adaptive infrastructure, consolidation, record and replay, storytelling

Mark J. Weal; Danius T. Michaelides; Mark K. Thompson; David C. DeRoure

2003-08-01T23:59:59.000Z

442

Idealized Test Cases for Dynamical Core Experiments  

E-Print Network (OSTI)

Idealized Test Cases for Dynamical Core Experiments Christiane Jablonowski (University of Michigan-13/2006 #12;Motivation · Test cases for 3D dynamical cores on the sphere ­ are hard to find in the literature groups ­ lack standardized & easy-to-use analysis techniques · Idea: Establish a collection of test cases

Jablonowski, Christiane

443

A Microscopic Double-Slit Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

A Microscopic Double-Slit Experiment Print A Microscopic Double-Slit Experiment Print Two centuries ago, Thomas Young performed the classic demonstration of the wave nature of light. He placed a screen with two tiny slits in front of a single light source, effectively converting it into a two-centered source. On a second screen far away, he saw a pattern of light and dark diffraction fringes, a well-known hallmark of wave interference. Along with later studies using particles instead of light, the experiment played a crucial role in establishing the validity of wave-particle duality, a puzzling concept that has ultimately become central to the interpretation of complementarity in quantum mechnanics. In a new twist on this classic experiment, the double slit (with light waves) has been replaced by a diatomic molecule (with electron waves). At ALS Beamline 10.0.1, researchers have shown that diatomic molecules can serve as two-center emitters of electron waves and that traces of electron-wave interference can be directly observed in precise measurements of vibrationally resolved photoionization spectra.

444

A Microscopic Double-Slit Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

A Microscopic Double-Slit A Microscopic Double-Slit Experiment A Microscopic Double-Slit Experiment Print Wednesday, 29 February 2012 00:00 Two centuries ago, Thomas Young performed the classic demonstration of the wave nature of light. He placed a screen with two tiny slits in front of a single light source, effectively converting it into a two-centered source. On a second screen far away, he saw a pattern of light and dark diffraction fringes, a well-known hallmark of wave interference. Along with later studies using particles instead of light, the experiment played a crucial role in establishing the validity of wave-particle duality, a puzzling concept that has ultimately become central to the interpretation of complementarity in quantum mechnanics. In a new twist on this classic experiment, the double slit (with light waves) has been replaced by a diatomic molecule (with electron waves). At ALS Beamline 10.0.1, researchers have shown that diatomic molecules can serve as two-center emitters of electron waves and that traces of electron-wave interference can be directly observed in precise measurements of vibrationally resolved photoionization spectra.

445

A Microscopic Double-Slit Experiment  

NLE Websites -- All DOE Office Websites (Extended Search)

A Microscopic Double-Slit Experiment Print A Microscopic Double-Slit Experiment Print Two centuries ago, Thomas Young performed the classic demonstration of the wave nature of light. He placed a screen with two tiny slits in front of a single light source, effectively converting it into a two-centered source. On a second screen far away, he saw a pattern of light and dark diffraction fringes, a well-known hallmark of wave interference. Along with later studies using particles instead of light, the experiment played a crucial role in establishing the validity of wave-particle duality, a puzzling concept that has ultimately become central to the interpretation of complementarity in quantum mechnanics. In a new twist on this classic experiment, the double slit (with light waves) has been replaced by a diatomic molecule (with electron waves). At ALS Beamline 10.0.1, researchers have shown that diatomic molecules can serve as two-center emitters of electron waves and that traces of electron-wave interference can be directly observed in precise measurements of vibrationally resolved photoionization spectra.

446

Determining Supersymmetric Parameters With Dark Matter Experiments  

Science Conference Proceedings (OSTI)

In this article, we explore the ability of direct and indirect dark matter experiments to not only detect neutralino dark matter, but to constrain and measure the parameters of supersymmetry. In particular, we explore the relationship between the phenomenological quantities relevant to dark matter experiments, such as the neutralino annihilation and elastic scattering cross sections, and the underlying characteristics of the supersymmetric model, such as the values of {mu} (and the composition of the lightest neutralino), m{sub A} and tan {beta}. We explore a broad range of supersymmetric models and then focus on a smaller set of benchmark models. We find that by combining astrophysical observations with collider measurements, {mu} can often be constrained far more tightly than it can be from LHC data alone. In models in the A-funnel region of parameter space, we find that dark matter experiments can potentially determine m{sub A} to roughly {+-}100 GeV, even when heavy neutral MSSM Higgs bosons (A, H{sub 1}) cannot be observed at the LHC. The information provided by astrophysical experiments is often highly complementary to the information most easily ascertained at colliders.

Hooper, Dan; /Fermilab; Taylor, Andrew M.; /Oxford U.

2006-07-01T23:59:59.000Z

447

Combustion Turbine Experience and Intelligence Reports: 2009  

Science Conference Proceedings (OSTI)

Along with up-to-date information on trends in gas markets in the United States and around the world, the 2009 edition of the Combustion Turbine Experience and Intelligence Report (CTEIR) addresses developments in natural gas supply fundamentals, extending plant depreciable life, and CO2 capture for combined cycles.

2009-12-04T23:59:59.000Z

448

Convection Initiation and Downburst Experiment (CINDE)  

Science Conference Proceedings (OSTI)

The Convection Initiation and Downburst Experiment (CINDE) was conducted in the Denver, Colorado area from 22 June to 7 August 1987 to study processes leading to the formation of deep convection and the physics of downbursts. A total of 6 Doppler ...

James W. Wilson; James A. Moore; G. Brant Foote; Brooks Martner; Taneil Uttal; James M. Wilczak; Alfred R. Rodi

1988-11-01T23:59:59.000Z

449

Managing ERP configuration variants: an experience report  

Science Conference Proceedings (OSTI)

The concepts of Software Product Line Engineering (SPLE) have been adapted and applied to enterprise IT systems, in particular the ERP systems of a production company. Based on a 2-layer feature model for the domain of the company's business processes, ... Keywords: IT management, enterprise resource planning, experience report, software product line engineering

Andrea Leitner; Christian Kreiner

2010-10-01T23:59:59.000Z

450

Organizational Learning: From Experience to Knowledge  

Science Conference Proceedings (OSTI)

Organizational learning has been an important topic for the journal Organization Science and for the field. We provide a theoretical framework for analyzing organizational learning. According to the framework, organizational experience interacts ... Keywords: creativity, innovation, knowledge transfer, learning curves, organizational learning, organizational memory

Linda Argote; Ella Miron-Spektor

2011-09-01T23:59:59.000Z

451

Combustion Turbine Experience and Intelligence Report: 2011  

Science Conference Proceedings (OSTI)

Along with up-to-date information on trends in gas markets in the United States and around the world, the 2011 edition of the Combustion Turbine Experience and Intelligence Report (CTEIR) addresses the impact of shales on natural gas markets and associated risks and includes an overview of boiler windbox repowering using gas turbines.

2011-12-07T23:59:59.000Z

452

MAGNETIC EXPERIMENTS1,2 INTRODUCTION  

E-Print Network (OSTI)

APPENDIX 47 APPENDIX MAGNETIC EXPERIMENTS1,2 INTRODUCTION As noted in the Handbook for Shipboard. It has frequently been suggested that the repeated banging of the APC bar- rel as it passes up the pipe, the core is in the magnetic field of the APC barrel and the field of the drill pipe that leaks through

453

Turning exams into a learning experience  

Science Conference Proceedings (OSTI)

Most students see exams as a stressful experience, having crammed as much as they possibly can and hoping that the material they have studied would indeed be on the exams, and the material that they did not have the time to study for, nor understand, ... Keywords: assessment, learning, midterms, peer-instruction, two-stage exams

Benjamin Yu; George Tsiknis; Meghan Allen

2010-03-01T23:59:59.000Z

454

MEG Experiment?New Result and Prospects?  

Science Conference Proceedings (OSTI)

The MEG Experiment searches for a lepton flavour violating muon decay ? + ???e + ? with a branching ratio sensitivity of 10 ?13 in order to explore the parameter region predicted by many theoretical models beyond the Standard Model. The first physics run has been performed in 2008

Hajime Nishiguchi; The MEG collaboration

2011-01-01T23:59:59.000Z

455

Light Duty Truck Aftertreatment - Experience and Challenges  

DOE Green Energy (OSTI)

Detroit Diesel's test experience on light duty truck PM aftertreatment technology development will be presented. The Tier-II extremely low emissions standards combined with the light-duty test cycle impose a significant challenge for the development of production-viable emissions technologies. A robust general path to achieve these emissions targets will be outlined.

Redon, Fabien

2000-08-20T23:59:59.000Z

456

Sharing the viewing experience through second screens  

Science Conference Proceedings (OSTI)

Despite the ever expanding forms of digital entertainment and the emergence of consumer recording facilities, allowing viewers to time shift their TV viewing habits, there are still certain TV shows and events that create an audience desire to be part ... Keywords: interactive, mobile, narrative, performance, second screen, shared experience, television, twitter

Mark Lochrie; Paul Coulton

2012-07-01T23:59:59.000Z

457

Preparing for Decommissioning: The Oyster Creek Experience  

Science Conference Proceedings (OSTI)

This report chronicles the process of preparing GPU Nuclear's Oyster Creek Nuclear Generating Station for early retirement and decommissioning. The Oyster Creek experience has great relevance to the nuclear industry, as future decommissioning projects will benefit from the comprehensive preplanning work performed there.

2000-06-06T23:59:59.000Z

458

Decommissioning Experiences and Lessons Learned: Decommissioning Costs  

Science Conference Proceedings (OSTI)

In 1995, the United States (US) Nuclear Regulatory Commission (NRC) issued revised decommissioning regulations that provided a dose-based site release limit and detailed supporting regulatory guidance. This report summarizes the decommissioning cost experiences at US nuclear plants, including information about radwaste volumes and the cost of radwaste disposal based on the current regulatory situation in the US.

2011-11-29T23:59:59.000Z

459

US graphite reactor D&D experience  

Science Conference Proceedings (OSTI)

This report describes the results of the U.S. Graphite Reactor Experience Task for the Decommissioning Strategy Plan for the Leningrad Nuclear Power Plant (NPP) Unit 1 Study. The work described in this report was performed by the Pacific Northwest National Laboratory (PNNL) for the Department of Energy (DOE).

Garrett, S.M.K.; Williams, N.C.

1997-02-01T23:59:59.000Z

460

Dry Ice vs. Pipette Experiment Description  

E-Print Network (OSTI)

Dry Ice vs. Pipette Experiment Description Dry ice (solid) is put into the bulb of a pipette, plastic pipette 1 ice cube sized piece of dry ice Butter knife (or some object to break dry ice) Gloves (surgical gloves will not work, they must protect hands from dry ice) Safety glasses for demonstrator

Note: This page contains sample records for the topic "throughfall displacement experiment" 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

Belle II Experiment Network and Computing  

E-Print Network (OSTI)

The Belle experiment, part of a broad-based search for new physics, is a collaboration of approximately 400 physicists from 55 institutions across four continents. The Belle detector is located at the KEKB accelerator in Tsukuba, Japan. The Belle detector was operated at the asymmetric electron-positron collider KEKB from 1999-2010. The detector accumulated more than 1/ab of integrated luminosity corresponding to more than 2 PB of data near 10 GeV center-of-mass energy. Recently, KEK has initiated a $400 million accelerator upgrade to be called SuperKEKB, designed to produce instantaneous and integrated luminosity two orders of magnitude greater than KEKB. The new international collaboration at SuperKEKB is called Belle II. The first data from Belle II/SuperKEKB is expected in 2015. In October 2012, senior members of the Belle II collaboration gathered at PNNL to discuss the computing and networking requirements of the Belle II experiment with ESnet staff and other computing and networking experts. The day-and-a-half-long workshop characterized the instruments and facilities used in the experiment, the process of science for Belle II, and the computing and networking equipment and configuration requirements to realize the full scientific potential of the collaboration's work. The requirements identified at the Belle II Experiment Requirements workshop are summarized in this report.

David M. Asner; Eli Dart; Takanori Hara

2013-08-03T23:59:59.000Z

462

Pebble Flow Experiments For Pebble Bed Reactors  

E-Print Network (OSTI)

Pebble Flow Experiments For Pebble Bed Reactors Andrew C. Kadak1 Department of Nuclear Engineering of Technology 2nd International Topical Meeting on High Temperature Reactor Technology Institute of Nuclear in such a reactor would conform to granular flow theory which suggested rapid mixing as opposed to linear flow lines

Bazant, Martin Z.

463

Liner target interaction experiments on Pegasus II  

SciTech Connect

The Los Alamos High Energy Density Physics program uses capacitively driven low voltage, inductive-storage pulse power to implode cylindrical targets for hydrodynamics experiments. Once a precision driver liner was characterized an experimental series characterizing the aluminum target dynamics was performed. The target was developed for shock-induced quasi-particle ejecta experiments including holography. The concept for the Liner shock experiment is that the driver liner is used to impact the target liner which then accelerates toward a collimator with a slit in it. A shock wave is set up in the target liner and as the shock emerges from the back side of the target liner, ejecta are generated. By taking a laser hologram the particle distribution of the ejecta are hoped to be determined. The goal for the second experimental series was to characterize the target dynamics and not to measure and generate the ejecta. Only the results from the third shot, Pegasus II-26 fired April 26th, 1994, from the series is discussed in detail. The second experimental series successfully characterized the target dynamics necessary to move forward towards the planned quasi-ejecta experiments.

Hockaday, M.P.; Chrien, R.E.; Bartsch, R. [and others

1995-09-01T23:59:59.000Z

464

Gain International Work Experience in China  

E-Print Network (OSTI)

Gain International Work Experience in China www.StudyCLI.org "The CLI internship gave me a huge boost both personally and professionally. At 21 years old, I've lived in China and can speak basic city of Guilin, China. CLIinternsengageinadynamicrangeofprojects: Y Establishnewrelationshipswith

Virginia Tech

465

ALEGRA -- code validation: Experiments and simulations  

SciTech Connect

In this study, the authors are providing an experimental test bed for validating features of the ALEGRA code over a broad range of strain rates with overlapping diagnostics that encompass the multiple responses. A unique feature of the Arbitrary Lagrangian Eulerian Grid for Research Applications (ALEGRA) code is that it allows simultaneous computational treatment, within one code, of a wide range of strain-rates varying from hydrodynamic to structural conditions. This range encompasses strain rates characteristic of shock-wave propagation (10{sup 7}/s) and those characteristic of structural response (10{sup 2}/s). Most previous code validation experimental studies, however, have been restricted to simulating or investigating a single strain-rate regime. What is new and different in this investigation is that the authors have performed well-instrumented experiments which capture features relevant to both hydrodynamic and structural response in a single experiment. Aluminum was chosen for use in this study because it is a well characterized material--its EOS and constitutive material properties are well defined over a wide range of loading rates. The current experiments span strain rate regimes of over 10{sup 7}/s to less than 10{sup 2}/s in a single experiment. The input conditions are extremely well defined. Velocity interferometers are used to record the high strain-rate response, while low strain rate data were collected using strain gauges.

Chhabildas, L.C.; Konrad, C.H.; Mosher, D.A.; Reinhart, W.D; Duggins, B.D.; Rodeman, R.; Trucano, T.G.; Summers, R.M.; Peery, J.S.

1998-03-16T23:59:59.000Z

466

Reactor-based Neutrino Oscillation Experiments  

E-Print Network (OSTI)

The status of neutrino oscillation searches employing nuclear reactors as sources is reviewed. This technique, a direct continuation of the experiments that proved the existence of neutrinos, is today an essential tool in investigating the indications of oscillations found in studying neutrinos produced in the sun and in the earth's atmosphere. The low-energy of the reactor \

Carlo Bemporad; Giorgio Gratta; Petr Vogel

2001-07-26T23:59:59.000Z

467

Dynamic Analysis of Learning in Behavioral Experiments  

E-Print Network (OSTI)

Understanding how an animals ability to learn relates to neural activity or is altered by lesions, different attentional states, pharmacological interventions, or genetic manipulations are central questions in neuroscience. Although learning is a dynamic process, current analyses do not use dynamic estimation methods, require many trials across many animals to establish the occurrence of learning, and provide no consensus as how best to identify when learning has occurred. We develop a statespace model paradigm to characterize learning as the probability of a correct response as a function of trial number (learning curve). We compute the learning curve and its confidence intervals using a statespace smoothing algorithm and define the learning trial as the first trial on which there is reasonable certainty (?0.95) that a subject performs better than chance for the balance of the experiment. For a range of simulated learning experiments, the smoothing algorithm estimated learning curves with smaller mean integrated squared error and identified the learning trials with greater reliability than commonly used methods. The smoothing algorithm tracked easily the rapid learning of a monkey during a single session of an association learning experiment and identified learning 2 to 4 d earlier than accepted criteria for a rat in a 47 d procedural learning experiment. Our statespace paradigm estimates learning curves for single animals, gives a precise definition of learning, and suggests a coherent statistical framework for the design and analysis of learning experiments that could reduce the number of animals and trials per animal that these studies require.

Anne C. Smith; Loren M. Frank; Sylvia Wirth; Marianna Yanike; Dan Hu; Yasuo Kubota; Ann M. Graybiel; Wendy A. Suzuki; Emery N. Brown

2004-01-01T23:59:59.000Z

468

The Particle Adventure | How do we experiment with tiny particles...  

NLE Websites -- All DOE Office Websites (Extended Search)

Accelerators and particle detectors - How do we experiment with tiny particles? - Fixed target experiments In a fixed-target experiment, a charged particle such as an electron or a...

469

Free-field ground motions for the nonproliferation experiment: Preliminary comparisons with nearby nuclear events  

SciTech Connect

Since 1987, we have installed fixed arrays of tri-axial accelerometers in the fire-field near the shot horizons for low-yield ({le} 20 kt) nuclear events in the N-tunnel complex beneath Rainier Mesa. For the Nonproliferation Experiment (NPE) we augmented the array to achieve 23 free-field stations. Goals are: (a) to examine robustness and stability of various free-field source function estimates -- e.g., reduced displacement potentials (RDP) and spectra; (b) to compare close-in with regional estimates to test whether detailed close-in free-field and/or surface ground motion data can improve predictability of regional-teleseismic source functions; (c) to provide experimental data for checking two-dimensional numerical simulations. We report preliminary comparisons between experimental free-field data for NPE (1993) and three nearby nuclear events (MISTY ECHO, 1988; MINERAL QUARRY, 1990; HUNTERS TROPHY, 1992). All four working points are within 1 km