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1

Analysis of tracer responses in the BULLION Forced-Gradient Experiment at Pahute Mesa, Nevada  

SciTech Connect (OSTI)

This report presents an analysis of the tracer data from the BULLION forced-gradient experiment (FGE) conducted on Pahute Mesa at the Nevada Test Site from June 2, 1997 through August 28, 1997, for the Underground Test Area (UGTA) Program. It also serves to document the polystyrene microsphere data from the FGE. The FGE involved the injection of solute and colloid tracers into wells ER-20-6 No. 1 and ER-20-6 No. 2 while ER-20-6 No. 3 was pumped at approximately 116 gallons per minute (gpm). The experimental configuration and test design are described briefly in this report; more details are provided elsewhere (IT, 1996, 1997, 1998). The tracer responses in the various wells yielded valuable information about transport processes such as longitudinal dispersion, matrix diffusion and colloid transport in the hydrogeologic system in the vicinity of the BULLION nuclear test cavity. Parameter values describing these processes are derived from the semi-analytical model interpretations presented in this report. A companion report (IT, 1998) presents more detailed numerical modeling interpretations of the solute tracer responses.

Paul W. Reimus; Marc J. Haga

1999-10-01T23:59:59.000Z

2

Radiative forcing in the ACCMIP historical and future climate simulations  

SciTech Connect (OSTI)

The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) examined the short-lived drivers of climate change in current climate models. Here we evaluate the 10 ACCMIP models that included aerosols, 8 of which also participated in the Coupled Model Intercomparison Project phase 5 (CMIP5). The models reproduce present-day total aerosol optical depth (AOD) relatively well, though many are biased low. Contributions from individual aerosol components are quite different, however, and most models underestimate east Asian AOD. The models capture most 1980-2000 AOD trends well, but underpredict increases over the Yellow/Eastern Sea. They strongly underestimate absorbing AOD in many regions. We examine both the direct radiative forcing (RF) and the forcing including rapid adjustments (effective radiative forcing; ERF, including direct and indirect effects). The models all-sky 1850 to 2000 global mean annual average total aerosol RF is (mean; range) ?0.26Wm?2; ?0.06 to ?0.49Wm?2. Screening based on model skill in capturing observed AOD yields a best estimate of ?0.42Wm?2; ?0.33 to ?0.50Wm?2, including adjustment for missing aerosol components in some models. Many ACCMIP and CMIP5 models appear to produce substantially smaller aerosol RF than this best estimate. Climate feedbacks contribute substantially (35 to ?58 %) to modeled historical aerosol RF. The 1850 to 2000 aerosol ERF is ?1.17Wm?2; ?0.71 to ?1.44Wm?2. Thus adjustments, including clouds, typically cause greater forcing than direct RF. Despite this, the multi-model spread relative to the mean is typically the same for ERF as it is for RF, or even smaller, over areas with substantial forcing. The largest 1850 to 2000 negative aerosol RF and ERF values are over and near Europe, south and east Asia and North America. ERF, however, is positive over the Sahara, the Karakoram, high Southern latitudes and especially the Arctic. Global aerosol RF peaks in most models around 1980, declining thereafter with only weak sensitivity to the Representative Concentration Pathway (RCP). One model, however, projects approximately stable RF levels, while two show increasingly negative RF due to nitrate (not included in most models). Aerosol ERF, in contrast, becomes more negative during 1980 to 2000. During this period, increased Asian emissions appear to have a larger impact on aerosol ERF than European and North American decreases due to their being upwind of the large, relatively pristine Pacific Ocean. There is no clear relationship between historical aerosol ERF and climate sensitivity in the CMIP5 subset of ACCMIP models. In the ACCMIP/CMIP5 models, historical aerosol ERF of about ?0.8 to ?1.5Wm?2 is most consistent with observed historical warming. Aerosol ERF masks a large portion of greenhouse forcing during the late 20th and early 21st century at the global scale. Regionally, aerosol ERF is so large that net forcing is negative over most industrialized and biomass burning regions through 1980, but remains strongly negative only over east and southeast Asia by 2000. Net forcing is strongly positive by 1980 over most deserts, the Arctic, Australia, and most tropical oceans. Both the magnitude of and area covered by positive forcing expand steadily thereafter.

Shindell, Drew; Lamarque, J.-F.; Schulz, M.; Flanner, M. G.; Jiao, C.; Chin, Mian; Young, P. J.; Lee, Y. H.; Rotstayn, Leon; Mahowald, N. M.; Milly, G.; Faluvegi, G.; Balkanski, Y.; Collins, W. J.; Conley, Andrew; Dalsoren, S.; Easter, Richard C.; Ghan, Steven J.; Horowitz, L.; Liu, Xiaohong; Myhre, G.; Nagashima, T.; Naik, Vaishali; Rumbold, S.; Skeie, R. B.; Sudo, K.; Szopa, S.; Takemura, T.; Voulgarakis, A.; Yoon, Jin-Ho; Lo, Fiona

2013-03-15T23:59:59.000Z

3

FUTURE FORCE AND FIRST RESPONDERS: BUILDING TIES FOR COLLABORATION AND LEVERAGED RESEARCH AND DEVELOPMENT  

E-Print Network [OSTI]

32611-6120 ABSTRACT Visions for the information needs and operational capabilities of the Future Force are similar to those for First Responders who comprise the backbone of Homeland Security personnel in response to both domestic incidents and internationally through peacekeeping and related operational roles

Hammer, Joachim

4

Identification of small-scale low and high permeability layers using single well forced-gradient tracer tests: Fluorescent dye imaging and modelling at the laboratory-scale  

Science Journals Connector (OSTI)

Abstract Heterogeneity in aquifer permeability, which creates paths of varying mass flux and spatially complex contaminant plumes, can complicate the interpretation of contaminant fate and transport in groundwater. Identifying the location of high mass flux paths is critical for the reliable estimation of solute transport parameters and design of groundwater remediation schemes. Dipole flow tracer tests (DFTTs) and push-pull tests (PPTs) are single well forced-gradient tests which have been used at field-scale to estimate aquifer hydraulic and transport properties. In this study, the potential for \\{PPTs\\} and \\{DFTTs\\} to resolve the location of layered high- and low-permeability layers in granular porous media was investigated with a pseudo 2-D bench-scale aquifer model. Finite element fate and transport modelling was also undertaken to identify appropriate set-ups for in situ tests to determine the type, magnitude, location and extent of such layered permeability contrasts at the field-scale. The characteristics of flow patterns created during experiments were evaluated using fluorescent dye imaging and compared with the breakthrough behaviour of an inorganic conservative tracer. The experimental results show that tracer breakthrough during \\{PPTs\\} is not sensitive to minor permeability contrasts for conditions where there is no hydraulic gradient. In contrast, \\{DFTTs\\} are sensitive to the type and location of permeability contrasts in the host media and could potentially be used to establish the presence and location of high or low mass flux paths. Numerical modelling shows that the tracer peak breakthrough time and concentration in a DFTT is sensitive to the magnitude of the permeability contrast (defined as the permeability of the layer over the permeability of the bulk media) between values of 0.0120. \\{DFTTs\\} are shown to be more sensitive to deducing variations in the contrast, location and size of aquifer layered permeability contrasts when a shorter central packer is used. However, larger packer sizes are more likely to be practical for field-scale applications, with fewer tests required to characterise a given aquifer section. The sensitivity of \\{DFTTs\\} to identify layered permeability contrasts was not affected by test flow rate.

Gareth L. Barns; Steven F. Thornton; Ryan D. Wilson

2015-01-01T23:59:59.000Z

5

Tracers and Tracer Interpretation | Open Energy Information  

Open Energy Info (EERE)

Tracers and Tracer Interpretation Tracers and Tracer Interpretation Jump to: navigation, search Contents 1 Geothermal Lab Call Projects for Tracers and Tracer Interpretation 2 Geothermal ARRA Funded Projects for Tracers and Tracer Interpretation Geothermal Lab Call Projects for Tracers and Tracer Interpretation Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

6

Mountain Home Air Force Base, Idaho Geothermal Resource Assessment and Future Recommendations  

SciTech Connect (OSTI)

The U.S. Air Force is facing a number of challenges as it moves into the future, one of the biggest being how to provide safe and secure energy to support base operations. A team of scientists and engineers met at Mountain Home Air Force Base in early 2011 near Boise, Idaho, to discuss the possibility of exploring for geothermal resources under the base. The team identified that there was a reasonable potential for geothermal resources based on data from an existing well. In addition, a regional gravity map helped identify several possible locations for drilling a new well. The team identified several possible sources of funding for this wellthe most logical being to use U.S. Department of Energy funds to drill the upper half of the well and U.S. Air Force funds to drill the bottom half of the well. The well was designed as a slimhole well in accordance with State of Idaho Department of Water Resources rules and regulations. Drilling operations commenced at the Mountain Home site in July of 2011 and were completed in January of 2012. Temperatures increased gradually, especially below a depth of 2000 ft. Temperatures increased more rapidly below a depth of 5500 ft. The bottom of the well is at 5976 ft, where a temperature of about 140C was recorded. The well flowed artesian from a depth below 5600 ft, until it was plugged off with drilling mud. Core samples were collected from the well and are being analyzed to help understand permeability at depth. Additional tests using a televiewer system will be run to evaluate orientation and directions at fractures, especially in the production zone. A final report on the well exploitation will be forthcoming later this year. The Air Force will use it to evaluate the geothermal resource potential for future private development options at Mountain Home Air Force Base. In conclusion, Recommendation for follow-up efforts include the following:

Joseph C. Armstrong; Robert P. Breckenridge; Dennis L. Nielson; John W. Shervais; Thomas R. Wood

2013-03-01T23:59:59.000Z

7

Future treaties: A proposed framework for verifying the reduction of conventional forces in Europe  

SciTech Connect (OSTI)

This report was prepared at the request of the US Department of Energy's Office of Arms Control to determine the implications of future treaties for the activities of the Department. It provides background on the negotiations on reduction of conventional forces in Europe (CFE) and, using the initial negotiating positions of the North Atlantic Treaty Organization (NATO) alliance, develops a framework for verifying a postulated treaty. This framework identifies the main elements of one approach to verification as a way to generate discussion of the problem as a whole. Stemming from this verification scheme is a discussion of the technologies needed to verify the postulated treaty provisions. Finally, a section is devoted to possible implications that the reduction of CFE could have for the US Department of Energy (DOE) and, more specifically, for the Office of Arms Control (OAC). This report was developed separately from NATO and US government efforts and neither draws on their efforts nor represents the policy or views of NATO, the US government or DOE. This report does draw on the author's 30 years of experience in the US Army, working with the NATO organization and with the conventional forces of the United States, its allies, and the Warsaw Treaty Organization. 11 refs., 2 figs.

Houser, G.M.

1989-09-01T23:59:59.000Z

8

The Sensitivity of the Hadley Circulation to Past and Future Forcings in Two Climate Models  

Science Journals Connector (OSTI)

A comparison is made of the Hadley cell response to altered external forcing and...2.... Both models have a consistent response to all forcings in the depth and meridional extent of the Hadley cell in both solsti...

Bette L. Otto-Bliesner; Amy Clement

2004-01-01T23:59:59.000Z

9

Tracers and Exploration Technologies  

Broader source: Energy.gov [DOE]

Below are the project presentations and respective peer review results for Tracers and Exploration Technologies.

10

Linking future aerosol radiative forcing to shifts in source activities Dorothy Koch,1  

E-Print Network [OSTI]

because of economic growth, or the desire to mitigate climate effects or improve air quality, affect all or 'black carbon' (BC) that also absorb incoming solar radiation, exert a positive radiative forcing depend upon fuels burned and technologies used in various energy- related activities. Actions that occur

11

Category:Tracer Testing | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing page? For detailed information on Tracer Testing, click here. Category:Tracer Testing Add.png Add a new Tracer Testing Technique Pages in category "Tracer Testing"...

12

Tracer Testing | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing Tracer Testing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Tracer Testing Details Activities (9) Areas (5) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Testing Techniques Parent Exploration Technique: Well Testing Techniques Information Provided by Technique Lithology: Stratigraphic/Structural: Fracture zones and formation permeability Hydrological: Flow rates, flow direction, hydrologic connections, storativity Thermal: Dictionary.png Tracer Testing: A method based on injecting chemical tracers into the reservoir and monitoring how long it takes and where those tracers travel. The purpose is to model subsurface hydrothermal flow characteristics.

13

BNL | Tracer Technology Group | BNL  

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

Tracer Technology Group Tracer Technology Group Tracer Technology Image The Tracer Technology Group (TTG) developed the use of perfluorocarbon tracers (PFTs) as tools for studying long range atmospheric transport and dispersion in the early 1980s.We are world leaders in the use of PFTs for solving diverse research and engineering problems in the atmospheric sciences, the energy production and utility industries, and building characterization. The unique capabilities of the TTG are derived from our analytical expertise, infrastructure, and experience. We have developed PFT analytical methods that have detection limits at the femtogram level. We can measure global background levels of PFTS at the parts per quadrillion levels. Our scientists and technical staff have extensive experience in

14

A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene  

Open Energy Info (EERE)

Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Sulfonate as a Liquid-Phase Tracer at the Coso Geothermal Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Sulfonate as a Liquid-Phase Tracer at the Coso Geothermal Field Details Activities (1) Areas (1) Regions (0) Abstract: A tracer test was conducted at the Coso geothermal field in order to characterize the flow patterns of fluid injected into well 68-20RD. A conservative liquid phase tracer, 2-naphthalene sulfonate, and a two-phase tracer, ethanol, were injected into well 68-20RD. Surrounding production wells were sampled over the subsequent 125 days and analyzed for the two tracers. The liquid-phase tracer showed negligible returns, whereas the

15

A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene...  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: A Tracer Test Using Ethanol as a Two-Phase Tracer and 2-Naphthalene Sulfonate as a Liquid-Phase...

16

Tracer Methods for Characterizing Fracture Stimulation in Engineered...  

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

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal...

17

Hydrological Tracers Using Nanobiotechnology: Proof of Concept  

Science Journals Connector (OSTI)

This new tracer is composed of polylactic acid (PLA) microspheres into which short strands of synthetic DNA and paramagnetic iron oxide nanoparticles are incorporated. ... The synthetic DNA serves as the label or tag in our tracers that allow us to distinguish one tracer from another, and paramagnetic iron oxide nanoparticles are included in the tracer to facilitate magnetic concentration of the tracers in potentially dilute water samples. ... Mahler et al.(30) attached synthetic DNA strands to silica and montmorillonite clay and measured the DNA concentration on the particles and in the supernatant over a three week period. ...

Asha N. Sharma; Dan Luo; M. Todd Walter

2012-07-25T23:59:59.000Z

18

Current Status and Recommendations for the Future of Research, Teaching, and Testing in the Biological Sciences of Radiation Oncology: Report of the American Society for Radiation Oncology Cancer Biology/Radiation Biology Task Force, Executive Summary  

SciTech Connect (OSTI)

In early 2011, a dialogue was initiated within the Board of Directors (BOD) of the American Society for Radiation Oncology (ASTRO) regarding the future of the basic sciences of the specialty, primarily focused on the current state and potential future direction of basic research within radiation oncology. After consideration of the complexity of the issues involved and the precise nature of the undertaking, in August 2011, the BOD empanelled a Cancer Biology/Radiation Biology Task Force (TF). The TF was charged with developing an accurate snapshot of the current state of basic (preclinical) research in radiation oncology from the perspective of relevance to the modern clinical practice of radiation oncology as well as the education of our trainees and attending physicians in the biological sciences. The TF was further charged with making suggestions as to critical areas of biological basic research investigation that might be most likely to maintain and build further the scientific foundation and vitality of radiation oncology as an independent and vibrant medical specialty. It was not within the scope of service of the TF to consider the quality of ongoing research efforts within the broader radiation oncology space, to presume to consider their future potential, or to discourage in any way the investigators committed to areas of interest other than those targeted. The TF charge specifically precluded consideration of research issues related to technology, physics, or clinical investigations. This document represents an Executive Summary of the Task Force report.

Wallner, Paul E., E-mail: pwallner@theabr.org [21st Century Oncology, LLC, and the American Board of Radiology, Bethesda, Maryland (United States); Anscher, Mitchell S. [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, Virginia (United States); Barker, Christopher A. [Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York (United States); Bassetti, Michael [Department of Human Oncology, University of Wisconsin Carbone Cancer Center, Madison, Wisconsin (United States); Bristow, Robert G. [Departments of Radiation Oncology and Medical Biophysics, Princess Margaret Cancer Center/University of Toronto, Toronto, Ontario (Canada); Cha, Yong I. [Department of Radiation Oncology, Norton Cancer Center, Louisville, Kentucky (United States); Dicker, Adam P. [Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania (United States); Formenti, Silvia C. [Department of Radiation Oncology, New York University, New York, New York (United States); Graves, Edward E. [Departments of Radiation Oncology and Radiology, Stanford University, Stanford, California (United States); Hahn, Stephen M. [Department of Radiation Oncology, University of Pennsylvania (United States); Hei, Tom K. [Center for Radiation Research, Columbia University, New York, New York (United States); Kimmelman, Alec C. [Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts (United States); Kirsch, David G. [Department of Radiation Oncology, Duke University, Durham, North Carolina (United States); Kozak, Kevin R. [Department of Human Oncology, University of Wisconsin (United States); Lawrence, Theodore S. [Department of Radiation Oncology, University of Michigan (United States); Marples, Brian [Department of Radiation Oncology, Oakland University, Oakland, California (United States); and others

2014-01-01T23:59:59.000Z

19

Microseismic Tracer Particles for Hydraulic Fracturing  

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

Microseismic Tracer Particles for Hydraulic Fracturing Microseismic Tracer Particles for Hydraulic Fracturing Microseismic Tracer Particles for Hydraulic Fracturing Scientists at Los Alamos National Laboratory have developed a method by which microseismic events can be discriminated/detected that correspond to only the portion of the hydraulic fracture that contains the proppant material and can be expected to be conductive to the flow of oil and gas. July 3, 2013 Microseismic Tracer Particles for Hydraulic Fracturing Figure 1: A graph of ionic conductivity as a function of temperature for the anti-perovskite Li3OCl. Available for thumbnail of Feynman Center (505) 665-9090 Email Microseismic Tracer Particles for Hydraulic Fracturing Applications: Oil and gas production Geophysical exploration Benefits: Tracks the disposition of material in a hydraulic fracturing

20

Tracer Methods for Characterizing Fracture Creation in Enhanced...  

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

Tracer Methods for Characterizing Fracture Creation in Enhanced Geothermal Systems; 2010 Geothermal Technology Program Peer Review Report Tracer Methods for Characterizing Fracture...

Note: This page contains sample records for the topic "forcing tracers future" 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

Tracer Methods for Characterizing Fracture Stimulation in Enhanced...  

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

Tracer Methods for Characterizing Fracture Stimulation in Enhanced Geothermal Systems (EGS); 2010 Geothermal Technology Program Peer Review Report Tracer Methods for Characterizing...

22

Validation of Geothermal Tracer Methods in Highly Constrained...  

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

of Research Hypothesis: Smart tracers can measure potential heat exchange between fracture and rock mass Hypothesis Test: A tracer test proving ground System must be simple...

23

Quantum Dot Tracers for Use in Engineered Geothermal | Department...  

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

tracerspeer2013.pdf More Documents & Publications Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Quantum Dot Tracers for Use in...

24

Climate forcing Climate forcing  

E-Print Network [OSTI]

parameters (solar distance factors) solar luminosity moon orbit volcanoes and other geothermal sources,000 years (large panels) and since 1750 (inset panels). Measurements are shown from ice cores (symbols forcings are shown on the right hand axes of the large panels. {Figure 6.4} !"#$#%&'(!&#)$&*$+#$,-.$/0

MacKinnon, Jennifer

25

Chelated Indium Activable Tracers for Geothermal Reservoirs  

E-Print Network [OSTI]

SGP-TR-99 Chelated Indium Activable Tracers for Geothermal Reservoirs Constantinos V. Chrysikopoulos Paul Kruger June 1986 Financial support was provided through the Stanford Geothermal Program under University Stanford Geothermal Program Interdisciplinary Research in Engineering and Earth Sciences STANFORD

Stanford University

26

Thermal Stability of Chelated Indium Activable Tracers  

SciTech Connect (OSTI)

The thermal stability of indium tracer chelated with organic ligands ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) was measured for reservoir temperatures of 150, 200, and 240 C. Measurements of the soluble indium concentration was made as a function of time by neutron activation analysis. From the data, approximate thermal decomposition rates were estimated. At 150 C, both chelated tracers were stable over the experimental period of 20 days. At 200 C, the InEDTA concentration remained constant for 16 days, after which the thermal decomposition occurred at a measured rate constant of k = 0.09 d{sup -1}. The thermal decomposition of InNTA at 200 C showed a first order reaction with a measured rate constant of k = 0.16 d{sup -1}. At 240 C, both indium chelated tracers showed rapid decomposition with rate constants greater than 1.8 d{sup -1}. The data indicate that for geothermal reservoir with temperatures up to about 200 C, indium chelated tracers can be used effectively for transit times of at least 20 days. These experiments were run without reservoir rock media, and do not account for concomitant loss of indium tracer by adsorption processes.

Chrysikopoulos, Costas; Kruger, Paul

1986-01-21T23:59:59.000Z

27

Work Force Planning for Public Power Utilities  

E-Print Network [OSTI]

Work Force Planning for Public Power Utilities: Ensuring Resources to Meet Projected Utilities Need to Do More to Prepare for Their Future Work Force Needs.............................................................................20 #12;ii Work Force Planning for Public Power Utilities #12;1 Work Force Planning for Public Power

28

Geologic flow characterization using tracer techniques  

SciTech Connect (OSTI)

A new tracer flow-test system has been developed for in situ characterization of geologic formations. This report describes two sets of test equipment: one portable and one for testing in deep formations. Equations are derived for in situ detector calibration, raw data reduction, and flow logging. Data analysis techniques are presented for computing porosity and permeability in unconfined isotropic media, and porosity, permeability and fracture characteristics in media with confined or unconfined two-dimensional flow. The effects of tracer pulse spreading due to divergence, dispersion, and porous formations are also included.

Klett, R. D.; Tyner, C. E.; Hertel, Jr., E. S.

1981-04-01T23:59:59.000Z

29

Method of dispersing particulate aerosol tracer  

DOE Patents [OSTI]

A particulate aerosol tracer which comprises a particulate carrier of sheet silicate composition having a particle size up to one micron, and a cationic dopant chemically absorbed in solid solution in the carrier. The carrier is preferably selected from the group consisting of natural mineral clays such as bentonite, and the dopant is selected from the group consisting of rare earth elements and transition elements. The tracers are dispersed by forming an aqueous salt solution with the dopant present as cations, dispersing the carriers in the solution, and then atomizing the solution under heat sufficient to superheat the solution droplets at a level sufficient to prevent reagglomeration of the carrier particles.

O'Holleran, Thomas P. (Belleville, MI)

1988-01-01T23:59:59.000Z

30

Nuclear forces  

SciTech Connect (OSTI)

These lectures present an introduction into the theory of nuclear forces. We focus mainly on the modern approach, in which the forces between nucleons emerge from low-energy QCD via chiral effective field theory.

Machleidt, R. [Department of Physics, University of Idaho, Moscow, Idaho 83844 (United States)

2013-06-10T23:59:59.000Z

31

Tracer Testing At Coso Geothermal Area (2006) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (2006) Tracer Testing At Coso Geothermal Area (2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (2006) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2006 Usefulness useful DOE-funding Unknown Exploration Basis To characterize the flow patterns of fluid injected into well 68-20RD. Notes A conservative liquid phase tracer, 2-naphthalene sulfonate, and a two-phase tracer, ethanol, were injected into well 68-20RD. Surrounding production wells were sampled over the subsequent 125 days and analyzed for the two tracers. The results demonstrate the efficacy of the simultaneous use of liquid-phase and two-phase tracers in fluid-depleted geothermal

32

Ecosystem Task Force Meeting Minutes  

E-Print Network [OSTI]

in violation of the clean water act 2. Long term tracking can identify problems and remediation techniques. 3. A focus on planning helps ground the Task Force because of the complexity of ecosystems. UNH targets for future reductions? 3.1. No. We could work on those with the Task Force. Water Quality

New Hampshire, University of

33

Validation of Geothermal Tracer Methods in Highly Constrained Field Experiments  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Project Summary. This project will test smartdiffusive tracers for measuring heat exchange.

34

Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino  

Open Energy Info (EERE)

Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Abstract A series of four tracer tests was recently conducted at the Dixie Valley, Nevada, geothermal reservoir in order to determine fluid-flow processes and to evaluate candidate tracers for use in hydrothermal systems. These tests have resulted in the first successful use of the compounds amino G and pyrenetetrasulfonate as tracers in a geothermal reservoir. The tracer candidates were subjected to simulated hydrothermal conditions in laboratory reactors at temperatures as high as 300°C in order to determine

35

Passive Tracer Gas Methods to Measure  

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

Experiments to Evaluate and Implement Experiments to Evaluate and Implement Passive Tracer Gas Methods to Measure Ventilation Rates in Homes Melissa Lunden, David Faulkner, Elizabeth Heredia, Sebastian Cohn, Darryl Dickerhoff, Federico Noris, Jennifer Logue, Toshifumi Hotchi, Brett Singer and Max H. Sherman Environmental Energy Technologies Division October 2012 LBNL-5984E 2 Disclaimer: This document was prepared as an account of work sponsored by the United States

36

Future Accelerators (?)  

E-Print Network [OSTI]

I describe the future accelerator facilities that are currently foreseen for electroweak scale physics, neutrino physics, and nuclear structure. I will explore the physics justification for these machines, and suggest how the case for future accelerators can be made.

John Womersley

2003-08-09T23:59:59.000Z

37

Tracer Testing At Coso Geothermal Area (1993) | Open Energy Information  

Open Energy Info (EERE)

Tracer Testing At Coso Geothermal Area (1993) Tracer Testing At Coso Geothermal Area (1993) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Coso Geothermal Area (1993) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 1993 Usefulness useful DOE-funding Unknown Exploration Basis To determine the steam and water mass flow rate Notes The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of

38

Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave |  

Open Energy Info (EERE)

Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Author Andreas Kucha Published Publisher Not Provided, 2012 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave Citation Andreas Kucha. Hydrogeology of the Blautopf spring - Tracer tests in Blauhohle cave [Internet]. 2012. [cited 2013/10/17]. Available from: http://www.agw.kit.edu/english/blauhoele_cave.php Retrieved from "http://en.openei.org/w/index.php?title=Hydrogeology_of_the_Blautopf_spring_-_Tracer_tests_in_Blauhohle_cave&oldid=688895"

39

Protective Force  

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

Establishes requirements for management and operation of the DOE Protective Force (PF), establishes requirements for firearms operations and defines the firearms courses of fire. Cancels: DOE M 473.2-1A DOE M 473.2-2

2005-08-26T23:59:59.000Z

40

Protective Force  

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

The manual establishes requirements for management and operation of the DOE Protective Force, establishes requirements for firearms operations and defines the firearms courses of fire. Chg 1 dated 3/7/06. DOE M 470.4-3A cancels DOE M 470.4-3, Chg 1, Protective Force, dated 3-7-06, Attachment 2, Contractor Requirement Document (CRD) only (except for Section C). Chg 1, dated 3-7-06, cancels DOE M 470.4-3

2006-03-07T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Tracer Testing At East Mesa Geothermal Area (1984) | Open Energy...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At East Mesa Geothermal Area (1984) Exploration Activity Details Location East Mesa...

42

Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate...  

Open Energy Info (EERE)

to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Tracer Testing at Dixie Valley, Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein...

43

Tracer Testing At Fenton Hill HDR Geothermal Area (Callahan,...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Fenton Hill HDR Geothermal Area (Callahan, 1996) Exploration Activity Details...

44

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers...  

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

Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and FractureHeat Transfer Surface Area in Geothermal Reservoirs Using Thermally-Degrading,...

45

Integrated Approach to Use Natural Chemical and Isotopic Tracers...  

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

Integrated Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems Integrated Approach to Use Natural Chemical and...

46

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers...  

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

Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and FractureHeat Transfer Surface Area in Geothermal Reservoirs Track Name May 19, 2010 This...

47

Use of Tracers to Characterize Fractures in Engineered Geothermal...  

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

Fractures in Engineered Geothermal Systems Project Objectives: Measure interwell fracture surface area and fracture spacing using sorbing tracers; measure fracture surface...

48

Tracer Methods for Characterizing Fracture Creation in Enhanced...  

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

75 4.6.6 Tracer Methods for Characterizing Fracture Creation in Enhanced Geothermal Systems Presentation Number: 033 Investigator: Rose, Peter (University of Utah) Objectives: To...

49

Quantum Dot Tracers for Use in Engineered Geothermal  

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

tracers, colloidal quantum dots, that offer great promise for use in characterizing fracture networks in EGS reservoirs. Since the wavelength of fluorescence (color) of these...

50

Verification of Geothermal Tracer Methods in Highly Constrained...  

Open Energy Info (EERE)

tracers of varying rates of molecular diffusion. Exchange of heat energy between fracture and bulk rock (matrix) behaves in the same manner as the exchange of dissolved mass....

51

Tracer Methods for Characterizing Fracture Stimulation in Enhanced...  

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

80 4.6.7 Tracer Methods for Characterizing Fracture Stimulation in Enhanced Geothermal Systems (EGS) Presentation Number: 034 Investigator: Pruess, Karsten (Lawrence Berkeley...

52

Integrated Approach to Use Natural Chemical and Isotopic Tracers...  

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

Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems B. Mack Kennedy (Presenter) and H. H. Liu Lawrence Berkeley...

53

Tracer Methods for Characterizing Fracture Stimulation in Engineered...  

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

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS) Karsten Pruess Lawrence Berkeley National Lab. May 19, 2010 This presentation does not...

54

Tracer Testing At Dixie Valley Geothermal Area (Reed, 2007) ...  

Open Energy Info (EERE)

Nevada, Using Pyrene Tetrasulfonate Amino G, and Fluorescein Peter E. Rose, Stuart D. Johnson, Phaedra Kilbourn (2001) Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene...

55

Novel Multidimensional Tracers for Geothermal Inter-Well Diagnostics  

Broader source: Energy.gov [DOE]

Novel Multidimensional Tracers for Geothermal Inter-Well Diagnostics presentation at the April 2013 peer review meeting held in Denver, Colorado.

56

The ATLAS DDM Tracer monitoring framework  

E-Print Network [OSTI]

The DDM Tracer Service is aimed to trace and monitor the atlas file operations on the Worldwide LHC Computing Grid. The volume of traces has increased significantly since the service started in 2009. Now there are about ~5 million trace messages every day and peaks of greater than 250Hz, with peak rates continuing to climb, which gives the current service structure a big challenge. Analysis of large datasets based on on-demand queries to the relational database management system (RDBMS), i.e. Oracle, can be problematic, and have a significant effect on the database's performance. Consequently, We have investigated some new high availability technologies like messaging infrastructure, specifically ActiveMQ, and key-value stores. The advantages of key value store technology are that they are distributed and have high scalability; also their write performances are usually much better than RDBMS, all of which are very useful for the Tracer service. Indexes and distributed counters have been also tested to improve...

ZANG, D; The ATLAS collaboration; BARISITS, M; LASSNIG, M; Andrew STEWART, G; MOLFETAS, A; BEERMANN, T

2012-01-01T23:59:59.000Z

57

Preliminary Investigation of Tracer Gas Reaeration Method for Shallow Bays  

E-Print Network [OSTI]

was used with propane for the tracer gas and Rhodamine-WT, a fluorescent dye, for the "conservative" tracer. The propane was injected through porous tile diffusers, and the dye was released simultaneously. The propane acts as a model for the surface...

Baker, Sarah H.; Holley, Edward R.

58

Use of Tracers to Characterize Fractures in Engineered Geothermal Systems  

Broader source: Energy.gov [DOE]

Project Objectives: Measure interwell fracture surface area and fracture spacing using sorbing tracers; measure fracture surface areas adjacent to a single geothermal well using tracers and injection/backflow techniques; design, fabricate and test a downhole instrument for measuring fracture flow following a hydraulic stimulation experiment.

59

Parallel Finite Element Simulation of Tracer Injection in Oil Reservoirs  

E-Print Network [OSTI]

Parallel Finite Element Simulation of Tracer Injection in Oil Reservoirs Alvaro L.G.A. Coutinho In this work, parallel finite element techniques for the simulation of tracer injection in oil reservoirs. Supercomputers have made it possible to consider global reservoir effects which can not be represented using

Coutinho, Alvaro L. G. A.

60

MIPAS observations of organic tracers for biomass burning and intercontinental transport  

E-Print Network [OSTI]

MIPAS observations of organic tracers for biomass burning and intercontinental transport observations of organic tracers for biomass burning and intercontinental transport Introduction Suite - Oxford - September 2009 #12;MIPAS observations of organic tracers for biomass burning

Note: This page contains sample records for the topic "forcing tracers future" 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

Methods and systems using encapsulated tracers and chemicals for reservoir interrogation and manipulation  

DOE Patents [OSTI]

An apparatus, method, and system of reservoir interrogation. A tracer is encapsulating in a receptacle. The receptacle containing the tracer is injected into the reservoir. The tracer is analyzed for reservoir interrogation.

Roberts, Jeffery; Aines, Roger D; Duoss, Eric B; Spadaccini, Christopher M

2014-11-04T23:59:59.000Z

62

Tracer Testing At East Mesa Geothermal Area (1983) | Open Energy  

Open Energy Info (EERE)

Tracer Testing At East Mesa Geothermal Area (1983) Tracer Testing At East Mesa Geothermal Area (1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At East Mesa Geothermal Area (1983) Exploration Activity Details Location East Mesa Geothermal Area Exploration Technique Tracer Testing Activity Date 1983 Usefulness not indicated DOE-funding Unknown Notes Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection volume at both East Mesa and Raft River suggests that, for both reservoirs, permeability remained uniform with increasing distance from the

63

ARMY SERVICE FORCES  

Office of Legacy Management (LM)

ARMY SERVICE FORCES ARMY SERVICE FORCES ' -, 1 MANHATTAN ENGINEER DISTRICT --t 4 IN "LPLI RC,' LR io EIDM CIS INTELLIGENCE AND SECURITY DIVISION CHICAGO BRANCH OFFICE i ., -,* - P. 0. Box 6770-A I ' 1 .' CHICAGO 80. ILLINOIS /lvb 15 February 1945 Subject: shipment Security Survey at &Uinckrodt Chemical Works. MEMORANDUM to the Officer in Charge. 1. The Mallinckrodt Chemical Works, St. Louis, Missouri, was contacted by the undersigned on 16 November 1944, for the purpose of -king an investigation to determine security provided shipments of interest to the Manhattan Engineer District. The investigation in- cluded shipments of vital materials originating with the Mallinckrodt Company and those received by them. Particular attention has been given to the future production and shipment schedules of these materials.

64

Novel Multi-dimensional Tracers for Geothermal Inter-wall Diagnostics...  

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

Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and FractureHeat Transfer Surface Area in Geothermal Reservoirs Use of Tracers to Characterize...

65

Tracer Gas Transport under Mixed Convection Conditions in an Experimental  

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

Tracer Gas Transport under Mixed Convection Conditions in an Experimental Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions Title Tracer Gas Transport under Mixed Convection Conditions in an Experimental Atrium: Comparison Between Experiments and CFD Predictions Publication Type Journal Article Year of Publication 2006 Authors Jayaraman, Buvaneswari, Elizabeth U. Finlayson, Michael D. Sohn, Tracy L. Thatcher, Phillip N. Price, Emily E. Wood, Richard G. Sextro, and Ashok J. Gadgil Journal Atmospheric Environment Volume 40 Start Page Chapter Pagination 5236-5250 Keywords airflow and pollutant transport group, atria, indoor airflow and pollutant transport, indoor environment department, indoor pollutant dispersion, mixed convection, turbulence model

66

Nuclear Forces  

Science Journals Connector (OSTI)

One-meson-exchange Feynman diagrams are nonrelativistically reduced and unitarized via Schrdinger's equation. Properties of nucleon-nucleon scattering are calculated at incident laboratory energies of 25-310 MeV. Bound-state properties of the deuteron and of nuclear matter are also calculated. Mesons included are the ?, ?, ?, ?, ?, and ?. Very good over-all agreement with the experimental data is obtained. Important features of this "potential" include its momentum dependence, properly treated, and the contribution of the ? "meson," which qualitatively changes the central/tensor force ratio from that of previous phenomenological potentials.

Lester Ingber

1968-10-20T23:59:59.000Z

67

Primordial black holes as biased tracers  

E-Print Network [OSTI]

Primordial black holes (PBHs) are theoretical black holes which may be formed during the radiation dominant era and, basically, caused by the gravitational collapse of radiational overdensities. It has been well known that in the context of the structure formation in our Universe such collapsed objects, e.g., halos/galaxies, could be considered as bias tracers of underlying matter fluctuations and the halo/galaxy bias has been studied well. Employing a peak-background split picture which is known to be a useful tool to discuss the halo bias, we consider the large scale clustering behavior of the PBH and propose an almost mass-independent constraint to the scenario that dark matters (DMs) consist of PBHs. We consider the case where the statistics of the primordial curvature perturbations is almost Gaussian, but with small local-type non-Gaussianity. If PBHs account for the DM abundance, such a large scale clustering of PBHs behaves as nothing but the matter isocurvature perturbation and constrained strictly by...

Tada, Yuichiro

2015-01-01T23:59:59.000Z

68

Future Directions for Magnetic Sensors  

E-Print Network [OSTI]

Future Directions for Magnetic Sensors: HYBRIDMATERIALS Our goal is to develop the scientific expertise needed to allow modeling and simulation to become the driving force in improving magnetic sensors effectiveness in developing new and improved magnetic sensors. By quantifying the improvement in sensor

69

Tracer Testing At Raft River Geothermal Area (1984) | Open Energy...  

Open Energy Info (EERE)

84 Usefulness not indicated DOE-funding Unknown Notes Tracer testing was undertaken at Raft River geothermal area. References Kroneman, R. L.; Yorgason, K. R.; Moore, J. N. (1...

70

Tracer stirring around a meddy: The formation of layering  

Science Journals Connector (OSTI)

The dynamics of the formation of layering surrounding meddy-like vortex lenses is investigated using Primitive Equation (PE), Quasi Geostrophic (QG) and tracer advection models. Recent in situ data inside a meddy confirmed the formation of highly ...

Thomas Meunier; Claire Mnesguen; Richard Schopp; Sylvie Le Gentil

71

Tracer method in numerical simulation of combustion processes  

Science Journals Connector (OSTI)

Fuel-rich laminar flat hydrogen-methane-air flames are studied numerically using the tracer method. It is found that, in the near-limit mixture, hydrogen has an advantage in the oxidation by oxygen. As the sto...

V. A. Bunev; A. V. Baklanov; I. G. Namyatov

2007-11-01T23:59:59.000Z

72

Geographic Information Systems- Tools For Geotherm Exploration, Tracers  

Open Energy Info (EERE)

Systems- Tools For Geotherm Exploration, Tracers Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geographic Information Systems- Tools For Geotherm Exploration, Tracers Data Analysis, And Enhanced Data Distribution, Visualization, And Management Details Activities (4) Areas (3) Regions (0) Abstract: Geographic information systems (GIS) are an underused resource that can help the geothermal industry in exploration, tracer analysis, infrastructure management, and the general distribution and use of data. GIS systems are highly customizable to specific user needs and can use entire corporate data sets through a visual interface. This paper briefly documents the use of GIS in specific examples of geothermal research at the

73

Preferred methods of analysis for chemical tracers in moderate- and  

Open Energy Info (EERE)

Preferred methods of analysis for chemical tracers in moderate- and Preferred methods of analysis for chemical tracers in moderate- and high-temperature geothermal environments Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Preferred methods of analysis for chemical tracers in moderate- and high-temperature geothermal environments Details Activities (2) Areas (2) Regions (0) Abstract: This report describes the sampling and analytical techniques used for tracer analysis in the Raft River and East Mesa field tests. The collection procedures and sample preservation techniques, analytical methods and possible sources of contamination or error are discussed in detail. Author(s): Kroneman, R. L.; Yorgason, K. R.; Moore, J. N. Published: DOE Information Bridge, 12/1/1984 Document Number: Unavailable DOI: 10.2172/5121460

74

Quantitative interpretation of tracer test data | Open Energy Information  

Open Energy Info (EERE)

Quantitative interpretation of tracer test data Quantitative interpretation of tracer test data Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Quantitative interpretation of tracer test data Abstract Geothermal reinjection is an important part of sustainable management of geothermal resources. Reinjection started out as a method of waste-water disposal, but is now also being used to counteract pressure draw-down and to extract more thermal energy from reservoir rocks. The possible cooling of production wells, or thermal breakthrough, is one of the main disadvantages associated with injection. To minimize this danger while maintaining the benefit from reinjection requires careful testing and research. Tracer testing, which is used to study flow-paths and quantify fluid-flow in hydrological systems, is probably the most important tool for

75

Resuspension rates from aged inert-tracer sources  

SciTech Connect (OSTI)

Wind-caused particle resuspension rates were investigated with molybdenum tracers at two circular resuspension sites in the Hanford area. The tracer particles were calcium molybdate. The radii of each circular tracer-source area were 22.9 m and 29.9 m respectively for tracer deposited on 2 October 1973 and 29 May 1979. Resuspension rates were investigated by sampling resuspended tracer with air sampling equipment mounted as a function of height on a centrally located sampling tower at each site. Sampling equipment was operated as a function of wind speed increments in order to investigate resuspension rates, wind speed dependencies of resuspension rates, and for subsequent comparisons of resuspension rate changes as a function of time for constant wind speed ranges. Experimental results are reported for measurements over several years. Resuspension rates ranged from about 10/sup -13/ to 10/sup -6/ fraction of the tracer source resuspended per second. Resuspension rates tended to increase with increasing wind speed. At one investigation site, resuspension rates were nearly constant, except for seasonal variations, for a four-year time period. Resuspension rates appear higher in the autumn than in the spring and summer.

Sehmel, G.A.

1982-11-01T23:59:59.000Z

76

HYDROGEL TRACER BEADS: THE DEVELOPMENT, MODIFICATION, AND TESTING OF AN INNOVATIVE TRACER FOR BETTER UNDERSTANDING LNAPL TRANSPORT IN KARST AQUIFERS  

SciTech Connect (OSTI)

The goal of this specific research task is to develop proxy tracers that mimic contaminant movement to better understand and predict contaminant fate and transport in karst aquifers. Hydrogel tracer beads are transported as a separate phase than water and can used as a proxy tracer to mimic the transport of non-aqueous phase liquids (NAPL). They can be constructed with different densities, sizes & chemical attributes. This poster describes the creation and optimization of the beads and the field testing of buoyant beads, including sampling, tracer analysis, and quantitative analysis. The buoyant beads are transported ahead of the dissolved solutes, suggesting that light NAPL (LNAPL) transport in karst may occur faster than predicted from traditional tracing techniques. The hydrogel beads were successful in illustrating this enhanced transport.

Amanda Laskoskie, Harry M. Edenborn, and Dorothy J. Vesper

2012-01-01T23:59:59.000Z

77

Einstein's Dream of Unified Forces - forces | U.S. DOE Office of Science  

Office of Science (SC) Website

Do all the forces become one? Do all the forces become one? The International Linear Collider The U.S. is pushing superconducting technology forward for use in future accelerators like the proposed International Linear Collider. (Credit: Fermilab) At the most fundamental level, particles and forces may converge, either through hidden principles like grand unification, or through radical physics like superstring. We already know that remarkably similar mathematical laws and principles describe all the known forces except gravity. Perhaps all forces are different manifestations of a single grand unified force, a force that would relate quarks to leptons and predict new ways of converting one kind of particle into another. Such a force might eventually make protons decay, rendering ordinary matter unstable.

78

New particle transport diagnostics with tracer-encapsulated solid pellet  

Science Journals Connector (OSTI)

A new diagnostic method for local particle transport, which is based on injection of the tracer-encapsulated solid pellet (TESPEL), was applied for the first time in experiments on the CHS device. Such a configuration of the pellet allows the lithium hydride tracer to reach the core plasma region and be deposited within a few centimetres in the radial direction, which was confirmed by measurements with photomultipliers and CCD imaging. The radial diffusion of the fully ionized tracer is observed by means of charge exchange recombination spectroscopy with the heating neutral beam as a source. The local tracer deposition and complete ionization of the tracer greatly simplify the transport analysis and allow the use of analytic expressions for deriving the diffusion coefficient, D. With this procedure, the diffusion coefficient was determined for various plasma conditions and was found to be larger for discharges with higher electron temperature. An impurity transport code was also applied to the experimental data, which allowed more precise calculation of the transport coefficients including the pinch velocity, V. It is expected that a higher accuracy will be achieved for the case of TESPEL injection into a larger-scale plasma.

K Khlopenkov; S Sudo

2001-01-01T23:59:59.000Z

79

Tracer Testing At Raft River Geothermal Area (1983) | Open Energy  

Open Energy Info (EERE)

3) 3) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Tracer Testing Activity Date 1983 Usefulness not indicated DOE-funding Unknown Exploration Basis To develop chemical tracing procedures for geothermal areas. Notes Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection volume at both East Mesa and Raft River suggests that, for both reservoirs, permeability remained uniform with increasing distance from the well bore. Increased mixing during quiescent periods, between injection and

80

Preliminary assessment of halogenated alkanes as vapor-phase tracers  

SciTech Connect (OSTI)

New tracers are needed to evaluate the efficiency of injection strategies in vapor-dominated environments. One group of compounds that seems to meet the requirements for vapor-phase tracing are the halogenated alkanes (HCFCs). HCFCs are generally nontoxic, and extrapolation of tabulated thermodynamic data indicate that they will be thermally stable and nonreactive in a geothermal environment. The solubilities and stabilities of these compounds, which form several homologous series, vary according to the substituent ratios of fluorine, chlorine, and hydrogen. Laboratory and field tests that will further define the suitability of HCFCs as vapor-phase tracers are under way.

Adams, Michael C.; Moore, Joseph N.; Hirtz, Paul

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2-  

Open Energy Info (EERE)

Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- and Water-Based Geothermal Reservoirs Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Advancing Reactive Tracer Methods for Measuring Thermal Evolution in CO2- and Water-Based Geothermal Reservoirs Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Tracers and Tracer Interpretation Project Description The concepts and theory behind the use of heat-sensitive tracers to study the thermal evolution of geothermal reservoirs was developed in the late 1980's under the Hot Dry Rock Project. Those studies described-conceptually and mathematically-the application of reactive tracers to tracking thermal fronts and to reservoir sizing. Later mathematical treatments focused on application of a single reactive tracer test to recover the temperature profile of a single streamtube. Previous tracer work has mainly focused on identifying conservative tracers. In these studies, chemicals that degraded at reservoir temperatures were discarded. Benzoic acids and dicarboxylic acids, which were found by Adams to degrade, may be useful as reactive tracers. Organic esters and amide tracers that undergo hydrolysis have been investigated and their use as reactive tracers appears feasible over a temperature range of 100ºC to 275ºC. However their reaction rates are pH dependent and sorption reactions have not been evaluated. While reactive tracer parameters have been measured in the lab, reactive tracers have not been extensively tested in the field. Thus, while reactive tracers appear to be a promising means of monitoring the thermal evolution of a geothermal reservoir, the concept has yet to be tested at the scale necessary for successful implementation, and tools for analyzing results of such tracer tests under the non-ideal conditions of an actual geothermal system have yet to be developed.

82

The Future of  

E-Print Network [OSTI]

Several factors are conspiring to create potentially ideal conditions for a mini-renaissance of domestic manufacturing, including the emergence of additive manufacturing, the forces of social, mobile, analytics and cloud, and ever-rising energy costs. | FUTURE OF WORKExecutive Summary U.S. manufacturing is better positioned today for revival than anytime since its slow and painful decline some 30 years ago. A big reason for its new-found strength stems from changes in China. Rising wages, concerns over IP protection and increases in digital automation globally have conspired to undermine the economic advantages that China has enjoyed for years. We believe the following additional factors will contribute to positioning the U.S. manufacturing industry for renewal: The U.S. is best positioned to lead manufacturing into the digital age because of its significant scale, consistently high

A Change Manifesto

83

ANALYSIS OF TRACER AND THERMAL TRANSIENTS DURING REINJECTION  

E-Print Network [OSTI]

and developed a new technique which combines the results from in- terwell tracer tests and thermal injection variables of the injection and backflow periods. Finally we suggested thermal injection-backflow tests for interpreting thermal injection-backflow tests. In fact, the MD model was first developed by Lauwerier to study

Stanford University

84

RADIOGENIC ISOTOPES: TRACERS OF PAST OCEAN CIRCULATION AND EROSIONAL INPUT  

E-Print Network [OSTI]

in the ocean has varied as a function of changes in paleocircu- lation, source provenances, style and intensity-established paleoceano- graphic tracers such as carbon isotopes. INDEX TERMS: 1040 Geochemistry: Isotopic composition Atlantic Deep Water (NADW) according to latest estimates based on results of the World Ocean Circulation

Jellinek, Mark

85

DIVISION S-3-NOTES HYDROLOGIC TRACER EFFECTS ON SOIL  

E-Print Network [OSTI]

and denitrification (the conversion of NOf to N gas)can be important to the fate of NOf and organic pollutants on microbial activity. These effects could be important whentracers areused instudies of the fate and transport of pollutants in the environment. In such studies, it is important to determine if tracer compounds affect

Gold, Art

86

Calibration of hydraulic and tracer tests in fractured media  

E-Print Network [OSTI]

Calibration of hydraulic and tracer tests in fractured media represented by a DFN Model L. D. Donado, X. Sanchez-Vila, E. Ruiz* & F. J. Elorza** * Enviros Spain S.L. ** UPM #12;Fractured Media Water flows through fractures (matrix basically impervious ­ though relevant to transport) Fractures at all

Politècnica de Catalunya, Universitat

87

Wear Measurement of Highly Cross-linked UHMWPE using a 7Be Tracer Implantation Technique  

SciTech Connect (OSTI)

The very low wear rates achieved with the current highly cross-linked ultrahigh molecular weight polyethylenes (UHMWPE) used in joint prostheses have proven to be difficult to measure accurately by gravimetry. Tracer methods are there- fore being explored. The purpose of this study was to perform a proof-of-concept experiment on the use of the radioactive tracer beryllium-7 (7Be) for the determination of in vitro wear in a highly cross-linked orthopedic UHMWPE. Three cross-linked and four conventional UHMWPE pins made from compression- molded GUR 1050, were activated with 109 to 1010 7Be nuclei using a new implantation setup that produced a homogenous distribution of implanted nuclei up to 8.5 lm below the surface. The pins were tested for wear in a six-station pin-on-flat appara- tus for up to 7.1 million cycles (178 km). A Germanium gamma detector was employed to determine activity loss of the UHMWPE pins at preset intervals during the wear test. The wear of the cross-linked UHMWPE pins was readily detected and esti- mated to be 17 6 3 lg per million cycles. The conventional-to- cross-linked ratio of the wear rates was 13.1 6 0.8, in the expected range for these materials. Oxidative degradation dam- age from implantation was negligible; however, a weak depend- ence of wear on implantation dose was observed limiting the number of radioactive tracer atoms that can be introduced. Future applications of this tracer technology may include the analysis of location-specific wear, such as loss of material in the post or backside of a tibial insert.

Wimmer, Markus A. [Rush Uniiv. Medical Center; Laurent, Michael P. [Rush Univ. Medical Center; Dwivedi, Yasha [Rush Univ. Medical Center; Gallardo, Luis A. [Rush Univ. Medical Center; Chipps, K. [Colorado School of Mines, Golden; Blackmon, Jeffery C [Louisiana State University; Kozub, R. L. [Tennessee Technological University; Bardayan, Daniel W [ORNL; Gross, Carl J [ORNL; Stracener, Daniel W [ORNL; Smith, Michael Scott [ORNL; Nesaraja, Caroline D [ORNL; Erikson, Luke [Colorado School of Mines, Golden; Patel, Nidhi [Colorado School of Mines, Golden; Rehm, Karl E. [Argonne National Laboratory (ANL); Ahmad, Irshad [Argonne National Laboratory (ANL); Greene, John P. [Argonne National Laboratory (ANL); Greife, Uwe [Colorado School of Mines, Golden

2013-01-01T23:59:59.000Z

88

Partitioning and Interfacial Tracers for Differentiating NAPL Entrapment Configuration:? Column-Scale Investigation  

Science Journals Connector (OSTI)

Partitioning and Interfacial Tracers for Differentiating NAPL Entrapment Configuration:? Column-Scale Investigation ... In field investigations, such as partitioning interwell tracer tests (PITTs), tracers are deployed before and after cleanup implementation to assess remedial performance (13, 26?28). ... The use of 222Rn, a naturally occurring radioactive isotope, was investigated as a partitioning tracer to detect and quantify the amt. of non-aq.-phase ...

Dongping Dai; Frank T. Barranco Jr.; Tissa H. Illangasekare

2001-11-17T23:59:59.000Z

89

Framtidens lantbruk / Future Agriculture Future Agriculture  

E-Print Network [OSTI]

Framtidens lantbruk / Future Agriculture Future Agriculture ­ Livestock, Crops and Land Use Report from a multidisciplinary research platform. Phase I (2009 ­ 2012) #12;Future Agriculture ­ Livestock Waldenström Utgivningsår: 2012, Uppsala Utgivare: SLU, Framtidens lantbruk/Future Agriculture Layout: Pelle

90

Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site Characterization Study; Progress report, June 1--December 31, 1990  

SciTech Connect (OSTI)

Ground water tracers are solutes dissolved in or carried by ground water to delineate flow pathways. Tracers provide information on direction and speed of water movement and that of contaminants that might be conveyed by the water. Tracers can also be used to measure effective porosity, hydraulic conductivity, dispersivity and solute distribution coefficients. For most applications tracers should be conservative, that is, move at the same rate as the water and not sorb to aquifer materials. Tracers must have a number of properties to be functional. Regardless of the desired properties, the chemical and physical behavior of a tracer in ground water and the porous medium under study must be understood. Good estimates of tracer behavior can be obtained from laboratory studies. Studies in this proposal will address tracer properties with analytical method development, static sorption and degradation studies and column transport studies, Mutagenicity tests will be performed on promising candidates. The tracers that will be used for these experiments are fluorinated organic acids and other organic compounds that have the chemical and biological stability necessary to be effective in the Yucca Mountain environment. Special emphasis will be placed on compounds that fluoresce or have very large ultraviolet absorption coefficients for very high analytical sensitivity.

Stetzenbach, K.J.

1990-12-31T23:59:59.000Z

91

An investigation of radial tracer flow in naturally fractured reservoirs  

SciTech Connect (OSTI)

This study presents a general solution for the radial flow of tracers in naturally fractured reservoirs. Continuous and finite step injection of chemical and radioactive tracers are considered. The reservoir is treated as being composed of two regions: a mobile region where longitudinal dispersion and convection take place and a stagnant region where only diffusion and adsorption are allowed. Radioactive decay is considered in both regions. The model of this study is thoroughly compared to those previously presented in literature by Moench and Ogata, Tang et al., Chen et al., and Hsieh et al. The solution is numerically inverted by means of the Crump algorithm. A detailed validation of the model with respect to solutions previously presented and/or simplified physical conditions solutions (i.e., homogeneous case) or limit solutions (i.e., for short times) was carried out. The influence of various dimensionless parameters that enter into the solution was investigated. A discussion of results obtained through the Crump and Stehfest algorithm is presented, concluding that the Crump method provides more reliable tracer concentrations.

Jetzabeth, Ramirez-Sabag; Fernando, Samaniego V.; Jesus, Rivera R.; Fernando Rodriguez

1991-01-01T23:59:59.000Z

92

Conductivity tracer studies for a fluidized-bed bioreactor  

SciTech Connect (OSTI)

An automated conductivity tracer test was developed to measure the residence time distribution (RTD) of a cometabolic fluidized-bed bioreactor (FBBR). The FBBR contained sand-core bioparticles grown with phenol and it provided high (70% to 80%) removal of trichloroethene (TCE) at short (3 minute) detention times. The tracer test apparatus was constructed with off-the-shelf components controlled with a PC-based data acquisition system. Non-disruptive hydrodynamic testing was obtained during normal operation of the FBBR. The conductivity of injected brine pulses was monitored at the reactor inlet and outlet. Dispersion numbers and detention times were computed by fitting the advection-dispersion model to the tracer curves. Typical dispersion numbers attributed to the fluidized-bed of bioparticles ranged from 0.07 to 0.11. In simplified modeling of the FBBR, dispersion was found to have little effect on TCE removal. Based on the dispersion of brine pulses, it was determined that phenol feed pulses injected at inhibitory concentrations over 2 g/L would be rapidly dispersed in the biological bed to non-inhibitory concentrations.

Leung, S.Y.; Segar, R.L. Jr. [Univ. of Missouri, Columbia, MO (United States). Dept. of Civil Engineering

1997-12-31T23:59:59.000Z

93

Tracer-encapsulated cryogenic pellet production for particle transport diagnostics  

Science Journals Connector (OSTI)

A device for producing a tracer-encapsulated cryogenic pellet is constructed for an accurate transport diagnostic system to measure particle transport both parallel and perpendicular to the magnetic-field lines in magnetic confinementdevices. As for the typical configuration of the tracer-encapsulated pellet it is proposed that a 50250 ?m diam tracer made of a light atom such as lithium carbon etc. is encapsulated in the center of a 13 mm diam cylindrical pellet of hydrogen. For demonstration of the device operation a 240 ?m diam carbon sphere is encapsulated in the center of a 3 mm diam cylindrical pellet of hydrogen and accelerated by a light gas gun to velocities of 400800 m/s in a test chamber. The pellet has been photographed simultaneously from two directions and the two two-dimensional images are reconstructed to a three-dimensional image. Thus the proof of principle of the device operation has been demonstrated.

S. Sudo; H. Itoh; K. Khlopenkov

1997-01-01T23:59:59.000Z

94

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, What is the skill of ocean tracers in reducing uncertainties  

E-Print Network [OSTI]

in current Earth system models and (ii) imperfect knowledge of model parameters. Ocean tracers observa- tions

Haran, Murali

95

Physics for the Future U.S. Work Force  

Science Journals Connector (OSTI)

...the rescue. In Wash-ington State, Boeing has launched a $300,000 grant program...of corporate educa-tion relations at Boeing: "Most of the busi-ness community...done earlier to interest students." Boeing feels that PT can help channel more students...

Marcia Barinaga

1990-04-06T23:59:59.000Z

96

Hickam Air Force Base  

Broader source: Energy.gov [DOE]

Hickam Air Force Base spans 2,850 acres in Honolulu, Hawaii. The military base is home to the 15th Airlift Wing, the Hawaii Air National Guard, and the Pacific Air Forces headquarters.

97

Protective Force Program Manual  

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

Provides detailed requirements to supplement DOE O 473.2, Protective Force Program, which establishes the requirements and responsibilities for management and operation of the Department of Energy (DOE) Protective Force (PF) Program. Does not cancel other directives.

2000-06-30T23:59:59.000Z

98

Damping of glacial-interglacial cycles from anthropogenic forcing  

E-Print Network [OSTI]

Climate variability over the past million years shows a strong glacial-interglacial cycle of ~100,000 years as a combined result of Milankovitch orbital forcing and climatic resonance. It has been suggested that anthropogenic contributions to radiative forcing may extend the length of the present interglacial, but the effects of anthropogenic forcing on the periodicity of glacial-interglacial cycles has received little attention. Here I demonstrate that moderate anthropogenic forcing can act to damp this 100,000 year cycle and reduce climate variability from orbital forcing. Future changes in solar insolation alone will continue to drive a 100,000 year climate cycle over the next million years, but the presence of anthropogenic warming can force the climate into an ice-free state that only weakly responds to orbital forcing. Sufficiently strong anthropogenic forcing that eliminates the glacial-interglacial cycle may serve as an indication of an epoch transition from the Pleistocene to the Anthropocene.

Haqq-Misra, Jacob

2014-01-01T23:59:59.000Z

99

Application of a NAPL partitioning interwell tracer test (PITT) to support DNAPL remediation at the Sandia National Laboratories/New Mexico chemical waste landfill  

SciTech Connect (OSTI)

Chlorinated solvents as dense non-aqueous phase liquid (DNAPL) are present at a large number of hazardous waste sites across the U.S. and world. DNAPL is difficult to detect in the subsurface, much less characterize to any degree of accuracy. Without proper site characterization, remedial decisions are often difficult to make and technically effective, cost-efficient remediations are even more difficult to obtain. A new non-aqueous phase liquid (NAPL) characterization technology that is superior to conventional technologies has been developed and applied at full-scale. This technology, referred to as the Partitioning Interwell Tracer Test (PITT), has been adopted from oil-field practices and tailored to environmental application in the vadose and saturated zones. A PITT has been applied for the first time at full-scale to characterize DNAPL in the vadose zone. The PITT was applied in December 1995 beneath two side-by-side organic disposal pits at Sandia National Laboratories/New Mexico (SNL/NM) RCRA Interim Status Chemical Waste Landfill (CWL), located in Albuquerque, New Mexico. DNAPL, consisting of a mixture of chlorinated solvents, aromatic hydrocarbons, and PCE oils, is known to exist in at least one of the two buried pits. The vadose zone PITT was conducted by injecting a slug of non-partitioning and NAPL-partitioning tracers into and through a zone of interest under a controlled forced gradient. The forced gradient was created by a balanced extraction of soil gas at a location 55 feet from the injector. The extracted gas stream was sampled over time to define tracer break-through curves. Soil gas sampling ports from multilevel monitoring installations were sampled to define break-through curves at specific locations and depths. Analytical instrumentation such as gas chromatographs and a photoacoustical analyzers operated autonomously, were used for tracer detection.

Studer, J.E. [INTERA Inc., Albuquerque, NM (United States); Mariner, P.; Jin, M. [INTERA Inc., Austin, TX (United States)] [and others

1996-05-01T23:59:59.000Z

100

Fluid force transducer  

DOE Patents [OSTI]

An electrical fluid force transducer for measuring the magnitude and direction of fluid forces caused by lateral fluid flow, includes a movable sleeve which is deflectable in response to the movement of fluid, and a rod fixed to the sleeve to translate forces applied to the sleeve to strain gauges attached to the rod, the strain gauges being connected in a bridge circuit arrangement enabling generation of a signal output indicative of the magnitude and direction of the force applied to the sleeve.

Jendrzejczyk, Joseph A. (Warrenville, IL)

1982-01-01T23:59:59.000Z

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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

Living a Sustainable Future  

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

Living a Sustainable Future Living a Sustainable Future August 1, 2013 Biomass to fuel project The Laboratory's biomass team is working to solve the energy crisis through...

102

Nuclear and Particle Futures  

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

Nuclear and Particle Futures Nuclear and Particle Futures The Lab's four Science Pillars harness capabilities for solutions to threats- on national and global scales. Contacts...

103

OSCARS-Future-Tech  

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

OSCARS and Future Tech Engineering Services The Network OSCARS How It Works Who's Using OSCARS? OSCARS and Future Tech OSCARS Standard and Open Grid Forum OSCARS Developers...

104

Active stewardship: sustainable future  

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

stewardship: sustainable future Active stewardship: sustainable future Energy sustainability is a daunting task: How do we develop top-notch innovations with some of the...

105

Microsoft PowerPoint - Tracer plume detection-LANL(Fessenden).ppt  

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

Tracer Testing of Plume Movement Tracer Testing of Plume Movement Julianna Fessenden and Paul Reimus, Los Alamos National Laboratory Plume modeling (atmosphere, reservoir, groundwater) Purpose of Tracing Plumes Monitor species of interest within reservoir Monitor species of interest outside reservoir Monitor Flow paths Capture zones Monitor Breaches Extent of movement Desirable Tracer Characteristics (1) Inexpensive (measurement, analytical) (2) Low detection limits, no analytical interferences (3) Quick, easy to sample and measure (4) Non toxic, readily permitted (5) Both sorbing/non-sorbing tracer use Perflorocarbon Tracer deployment NETL facilities Classes of Tracers (1) Gas Phase (2) Liquid Phase (3) Organic, inorganic, aqueous (4) Conservative/nonreacting (5) Reactive with mineral surfaces or soluble in non-carrier phase

106

Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies |  

Open Energy Info (EERE)

Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Tracer Recovery and Mixing from Two Geothermal Injection-Backflow Studies Details Activities (2) Areas (2) Regions (0) Abstract: Injection-backflow tracer testing on a single well is not a commonly used procedure for geothermal reservoir evaluation, and, consequently, there is little published information on the character or interpretation of tracer recovery curves. Two field experiments were conducted to develop chemical tracer procedures for use with injection-backflow testing, one on the fracture-permeability Raft River reservoir and the other on the matrix-permeability East Mesa reservoir. Results from tests conducted with incremental increases in the injection

107

Global Energy Futures: With International Futures (IFs)  

SciTech Connect (OSTI)

Dr. Hughes presents and discusses the results of simulations on alternative energy futures composed in collaboration with SNL's Sustainability Innovation Foundry.

Hughes, Barry

2013-03-20T23:59:59.000Z

108

Characterization of four potential laser-induced fluorescence tracers for diesel engine applications  

Science Journals Connector (OSTI)

Four potential laser-induced fluorescence (LIF) tracers, 1-phenyloctane, 1-phenyldecane, 1-methylnaphthalene, and 2-methylnaphthalene, are characterized for diesel engine applications....

Trost, Johannes; Zigan, Lars; Leipertz, Alfred; Sahoo, Dipankar; Miles, Paul C

2013-01-01T23:59:59.000Z

109

Novel Multi-dimensional Tracers for Geothermal Inter-wall Diagnostics  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. The objective of this project is to develop a matrix of the smart geothermal tracer and its interpretation tools.

110

Using Seismic Reflection to Locate a Tracer Testing Complex South of Yucca Mountain, Nye County, Nevada.  

E-Print Network [OSTI]

??Tracer testing in the fractured volcanic aquifer near Yucca Mountain, and in the alluvial aquifer south of Yucca Mountain, Nevada has been conducted in the (more)

Kryder, Levi

2014-01-01T23:59:59.000Z

111

Determination of Water Saturation in Relatively Dry Porous Media Using Gas-phase Tracer Tests  

SciTech Connect (OSTI)

Soil desiccation (drying), involving water evaporation induced by dry air injection and extraction, is a potentially robust remediation process to slow migration of inorganic or radionuclide contaminants through the vadose zone. The application of gas-phase partitioning tracer tests has been proposed as a means to estimate initial water volumes and to monitor the progress of the desiccation process at pilot-test and field sites. In this paper, tracer tests have been conducted in porous medium columns with various water saturations using sulfur hexafluoride as the conservative tracer and tricholorofluoromethane and difluoromethane as the water-partitioning tracers. For porous media with minimal silt and/or organic matter fractions, tracer tests provided reasonable saturation estimates for saturations close to zero. However, for sediments with significant silt and/or organic matter fractions, tracer tests only provided satisfactory results when the water saturation was at least 0.1 - 0.2. For dryer conditions, the apparent tracer retardation increases due to air soil sorption, which is not included in traditional retardation coefficients derived from advection-dispersion equations accounting only for air water partitioning and water soil sorption. Based on these results, gas-phase partitioning tracer tests may be used to determine initial water volumes in sediments, provided the initial water saturations are sufficiently large. However, tracer tests are not suitable for quantifying moisture content in desiccated sediments.

Oostrom, Martinus; Tartakovsky, Guzel D.; Wietsma, Thomas W.; Truex, Michael J.; Dane, Jacob H.

2011-04-15T23:59:59.000Z

112

Calcium translocation and whole plant transpiration: spatial and temporal measurements using radio-Strontium as tracer  

E-Print Network [OSTI]

comparison with zinc, strontium and rubidium. Annals of783- Wasserman RH. 1998. Strontium as a tracer for calciumor inapplicable. As Strontium (Sr) was found to behave in

Seligmann, Ron; Wengrowicz, Udi; Tirosh, Danny; Yermiyahu, Uri; Bar-Tal, Asher; Schwartz, Amnon

2009-01-01T23:59:59.000Z

113

E-Print Network 3.0 - atmospheric tracer experiments Sample Search...  

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

of Summary: for incorporating Lagrangian tracer positions into a model of flows (such as ocean currents). Such models... are important in understanding the behaviour of...

114

Tracer Testing At Neal Hot Springs Geothermal Area (U.S. Geothermal...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Tracer Testing At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2012) Exploration Activity...

115

E-Print Network 3.0 - activity optimal tracers Sample Search...  

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

AND AMOC Abstract Current projections of the oceanic response... in current Earth system models and (ii) imperfect knowledge of model parameters. Ocean tracers observa- tions...

116

Coulomb force as an entropic force  

SciTech Connect (OSTI)

Motivated by Verlinde's theory of entropic gravity, we give a tentative explanation to the Coulomb's law with an entropic force. When trying to do this, we find the equipartition rule should be extended to charges and the concept of temperature should be reinterpreted. If one accepts the holographic principle as well as our generalizations and reinterpretations, then Coulomb's law, the Poisson equation, and the Maxwell equations can be derived smoothly. Our attempt can be regarded as a new way to unify the electromagnetic force with gravity, from the entropic origin. Possibly some of our postulates are related to the D-brane picture of black hole thermodynamics.

Wang Tower [Center for High-Energy Physics, Peking University, Beijing 100871 (China)

2010-05-15T23:59:59.000Z

117

Unbalanced electromagnetic forces  

E-Print Network [OSTI]

) . I :, jazdz g (Member) (Member) August 1974 -" ~ 5:. -. 62 ABSTRACT Unbalanced Electromagnetic Forces (August 1974) Craig Martin Hansen, B. S. , Texas A&M University Directed by: Dr. Attilio J. Giaroia Electromagnetic forces from moving... be deduced from the history of the development of an under- standing of electromagnetic forces. This is a relatively short history (starting in the late 1800's) filled with misunderstandings and pre]udices. This history can be divided into two eras: non...

Hansen, Craig Martin

2012-06-07T23:59:59.000Z

118

Estimation of tracer diffusion coefficients of ions in aqueous solution  

SciTech Connect (OSTI)

Equations are given for estimating tracer diffusion coefficients D/sub i//sup 0/ of ions at infinite dilution in terms of limiting ionic conductances ..lambda../sub i//sup 0/. Also given are generalized Nernst-Hartley equations for binary and multicomponent diffusion coefficients D/sup 0/ and D/sub ij//sup 0/, respectively, at infinite dilution. Data, estimates, and correlations for ..lambda../sub i//sup 0/ at 25/sup 0/C and other temperatures are discussed. Estimated values of ..lambda../sub i//sup 0/ are tabulated from 0-300/sup 0/C for ions of waste isolation interest and for ions of economic interest in geothermal brines. Estimates of their tracer diffusion coefficients at infinite dilution are tabulated. A rule of thumb, good to a factor of 2, is presented. Very limited data (available only at 25/sup 0/C) indicate that D/sub i//D/sub i//sup 0/ generally declines as the concentration of salt or supporting electrolyte increases. 6 figures, 2 tables.

Miller, D.G.

1982-09-07T23:59:59.000Z

119

Geochemistry Atomic Force Microscopy | EMSL  

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

imaging modes: contact, intermittent contact, phase imaging, magnetic force microscopy, electric force microscopy, surface potential microscopy, scanning capacitance microscopy,...

120

NUCLEAR PROXIMITY FORCES  

E-Print Network [OSTI]

One might summarize of nuclear potential energy has beendegree of freedom) for the nuclear interaction between anyUniversity of California. Nuclear Proximity Forces 'I< at

Randrup, J.

2011-01-01T23:59:59.000Z

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


121

Reservoir characterization based on tracer response and rank analysis of production and injection rates  

SciTech Connect (OSTI)

Quantification of the spatial distribution of properties is important for many reservoir-engineering applications. But, before applying any reservoir-characterization technique, the type of problem to be tackled and the information available should be analyzed. This is important because difficulties arise in reservoirs where production records are the only information for analysis. This paper presents the results of a practical technique to determine preferential flow trends in a reservoir. The technique is a combination of reservoir geology, tracer data, and Spearman rank correlation coefficient analysis. The Spearman analysis, in particular, will prove to be important because it appears to be insightful and uses injection/production data that are prevalent in circumstances where other data are nonexistent. The technique is applied to the North Buck Draw field, Campbell County, Wyoming. This work provides guidelines to assess information about reservoir continuity in interwell regions from widely available measurements of production and injection rates at existing wells. The information gained from the application of this technique can contribute to both the daily reservoir management and the future design, control, and interpretation of subsequent projects in the reservoir, without the need for additional data.

Refunjol, B.T. [Lagoven, S.A., Pdvsa (Venezuela); Lake, L.W. [Univ. of Texas, Austin, TX (United States)

1997-08-01T23:59:59.000Z

122

Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain Site Characterization Study; Progress report, January 1, 1991--June 30, 1991  

SciTech Connect (OSTI)

Studies continue on the use of organic acids as tracers in hydrology studies of Yucca Mountain. Work performed during this time period has been concentrated in three main areas: the familiarization with, and optimization of, the LC-MS hardware and data system; the initial development of soil column test procedures, which are used for evaluation of both the columns themselves and the tracer compounds; and continuation of the batch sorption and degradation studies for the potential tracers. All three of these tasks will continue, as the addition of new tracer compounds, analytical information, and equipment will necessitate further evaluation of existing methods and procedures. Also included in this report is the final report on an information system.

Stetzenbach, K.J.

1991-12-31T23:59:59.000Z

123

Protective Force Program Manual  

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

Provides detailed requirements to supplement DOE O 473.2, PROTECTIVE FORCE PROGRAM, which establishes the requirements and responsibilities for management and operation of the Department of Energy (DOE) Protective Force (PF) Program. Change 1 revised pages in Chapters IV and VI on 12/20/2001.

2001-12-20T23:59:59.000Z

124

ILC Citizens' Task Force  

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

the Fermilab ILC Citizens' Task Force June 2008 Report of the Fermilab ILC Citizens' Task Force 3 Contents 1 Executive Summary 3 Chapter 1 Purpose 7 Chapter 2 Origins and Purpose of the Fermilab Citizens' Task Force 15 Chapter 3 Setting the Stage 19 Chapter 4 Current Status of High Energy Physics Research 25 Chapter 5 Bringing the Next-Generation Accelerator to Fermilab 31 Chapter 6 Learning from Past Projects 37 Chapter 7 Location, Construction and Operation of Facilities Beyond Fermilab's Borders 45 Chapter 8 Health and Safety 49 Chapter 9 Environment 53 Chapter 10 Economics 59 Chapter 11 Political Considerations 65 Chapter 12 Community Engagement 77 Chapter 13 Summary 81 Appendices Appendix A. Task Force Members Appendix B. Task Force Meetings and Topics

125

SAND TRACER MOVEMENT MEASURED IN A STRONG RIP CURRENT Nicholas C. Kraus  

E-Print Network [OSTI]

exceeding 50 cm/sec in areas where instruments could be placed. Three colors of sand tracer were injected the diver's signal, a float tied to the diver's wrist was released and allowed to flow with the current because of the cold water, placed instruments, injected the tracer, and sampled the bottom with ropes tied

US Army Corps of Engineers

126

IAEA-CN-80/66 ISOTOPE TRACERS IN GLOBAL WATER AND CLIMATE STUDIES  

E-Print Network [OSTI]

comprehensive source of data for evaluating the modern global isotope field generated by atmospheric generalIAEA-CN-80/66 ISOTOPE TRACERS IN GLOBAL WATER AND CLIMATE STUDIES OF THE PAST AND PRESENT T Agency, Wagramer Strasse 5, P.O. Box 100, A-1400 Vienna, AUSTRIA Abstract ISOTOPE TRACERS IN GLOBAL WATER

Edwards, Thomas W.D.

127

Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period  

E-Print Network [OSTI]

Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period R (2006), Globally synchronous ice core volcanic tracers and abrupt cooling during the last glacial period histories from ice coring of Greenland and Antarctica over the period 2 to 45 ka, using SO4 anomalies

Price, P. Buford

128

First Tracer Test After Circulation in Desert Peak 27-15  

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

Following the successful stimulation of Desert Peak target EGS well 27-15, a circulation test was initiated by injecting a conservative tracer (1,5-nds) in combination with a reactive tracer (7-amino-1,3-naphthalene disulfonate). The closest production well 74-21 was monitored over the subsequent several months.

Peter Rose

129

Stochastic inversion of tracer test and electrical geophysical data to estimate hydraulic conductivities  

E-Print Network [OSTI]

MonteCarlo (McMC) methodology to jointly invert the dynamic resistivity data, together with borehole tracer heterogeneity with respect to wellbore separation, where flow and transport are largely controlled by highly of drill cores and/or the results of tracer and pumping experiments; however, these techniques are often

Singha, Kamini

130

Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS)  

Broader source: Energy.gov [DOE]

Project objectives: identify tracers with sorption properties favorable for EGS applications; apply reversibly sorbing tracers to determine the fracture-matrix interface area available for heat transfer; and; explore the feasibility of obtaining fracture-matrix interface area from non-isothermal; single-well injection-withdrawal (SWIW) tests.

131

Heat as a tracer to determine streambed water exchanges Jim Constantz1  

E-Print Network [OSTI]

Heat as a tracer to determine streambed water exchanges Jim Constantz1 Received 13 March 2008 of heat as a tracer of shallow groundwater movement and describes current temperature-based approaches relying on traditional observation wells, and remote sensing and other large-scale advanced temperature

132

First Tracer Test After Circulation in Desert Peak 27-15  

SciTech Connect (OSTI)

Following the successful stimulation of Desert Peak target EGS well 27-15, a circulation test was initiated by injecting a conservative tracer (1,5-nds) in combination with a reactive tracer (7-amino-1,3-naphthalene disulfonate). The closest production well 74-21 was monitored over the subsequent several months.

Rose, Peter

2013-11-16T23:59:59.000Z

133

Saline tracer visualized with three-dimensional electrical resistivity tomography: Field-scale spatial moment analysis  

E-Print Network [OSTI]

Saline tracer visualized with three-dimensional electrical resistivity tomography: Field; accepted 14 February 2005; published 24 May 2005. [1] Cross-well electrical resistivity tomography (ERT., and S. M. Gorelick (2005), Saline tracer visualized with three-dimensional electrical resistivity

Singha, Kamini

134

Future Climate Engineering Solutions  

E-Print Network [OSTI]

Engineering Associations from around the world are part of the project `Future Climate - Engineering Solu- tions'. Within the project the participating associations have been developing national climate plansFuture Climate Engineering Solutions Joint report 13 engineering participating engeneering

135

Earth'future climate  

Science Journals Connector (OSTI)

...their visions of the future I. Astronomy and Earth sciences compiled by J. M. T. Thompson Earth'future climate Mark A. Saunders 1 1 Benfield...provide informed scientific projections for Earth's climate into the next millennium. This...

1999-01-01T23:59:59.000Z

136

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2012-10-01T23:59:59.000Z

137

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2012-11-01T23:59:59.000Z

138

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Mai, T.

2013-04-01T23:59:59.000Z

139

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

Hand, M. M.

2012-09-01T23:59:59.000Z

140

Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and  

Open Energy Info (EERE)

Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and 2,7-Naphthalene Disulfonate Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Tracer Testing at Dixie Valley, Nevada, Using 2-Naphthalene Sulfonate and 2,7-Naphthalene Disulfonate Abstract The decay kinetics of the candidate tracers 2-naphthalene sulfonate and 2,7-naphthalenedisulfonate was studied under laboratory conditionsthat simulate a hydrothermal environment, withneither compound exhibiting any decay after oneweek at 330�C. These data indicate that thesecompounds are more thermally stable than any of thepreviously studied polyaromatic sulfonates. Both ofthe tracer candidates were successfully tested in afield study at the Dixie Valley, Nevada, geothermalreservoir. In addition to

Note: This page contains sample records for the topic "forcing tracers future" 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

Tracer Testing At Coso Geothermal Area (2004) | Open Energy Information  

Open Energy Info (EERE)

Coso Geothermal Area (2004) Coso Geothermal Area (2004) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Tracer Testing Activity Date 2004 Usefulness not indicated DOE-funding Unknown Exploration Basis To determine the EGS potential of the Coso Geothermal Field Notes A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the reservoir liquid in some of the feed zones boils

142

Combating Future Threats  

Science Journals Connector (OSTI)

......research-article Future Combating Future Threats Andy Clark On 21 September BCS, The Chartered...leadership debate about future security threats. Andy Clark, Head of Forensics at Detica...and where are they? These are different threats. Smartphones are powerful, connected......

Andy Clark

2011-01-01T23:59:59.000Z

143

CHARTING BC'S ECONOMIC FUTURE  

E-Print Network [OSTI]

CHARTING BC'S ECONOMIC FUTURE discussionguide 100communityconversations #12;1 Thank you for agreeing to participate in this Community Conversation about BC's economic future. Each year Simon Fraser is "Charting BC's Economic Future". Faced with an increasingly competitive global economy, it is more important

Kavanagh, Karen L.

144

Renewable Electricity Futures Study  

E-Print Network [OSTI]

Renewable Electricity Futures Study End-use Electricity Demand Volume 3 of 4 Volume 2 PDF Volume 3;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Energy Laboratory Baldwin, S. U Sandor, D. National Renewable Energy Laboratory Suggested Citations Renewable Electricity Futures Study

145

Predictions of PuO{sub 2} and tracer compound release from ISV melts  

SciTech Connect (OSTI)

Two field tests were conducted at the Idaho National Engineering Laboratory (INEL) to assess in situ vitrification (ISV) suitability for long-term stabilization of buried radioactive waste. Both tests contained rare-earth oxide tracers (DY{sub 2}O{sub 3}, Yb{sub 2}O{sub 3}, and Tb{sub 4}O{sub 7}) to simulate the presence of plutonium in the form of PuO{sub 2}. In the first test, Intermediate Field Test (IFT)-l, approximately 4-% release of tracer material occurred during soil melting and associated off-gassing, while essentially nil release was observed for the second experiment (IFT-2) for which off-gassing was much reduced. This report presents an evaluation of the IFT test data in terms of governing release processes. Prediction of tracer release during ISV melting centered on an assessment of three potential transport mechanisms, (a) tracer diffusion through stagnant pool, (b) tracer transport by convective currents, and (c) tracer carry-off by escaping gas bubbles. Analysis indicates that tracer release by escaping gas is the dominant release mechanism, which is consistent with video records of gas bubble escape from the ISV melt surface. Quantitative mass transport predictions were also made for the IFT-I test conditions, indicating similarity between the 4-% release data and calculational results at viscosities of {approx} poise and tracer diffusivities of {approx}10{sub {minus}6} CM{sup 2}/s. Since PuO{sub 2} has similar chemical and transport (diffusivity) properties as the rare-earth tracers used in the rare earth tracers used in the IFT experiments, release of PuO{sub 2} is predicted for similar off-gassing conditions. Reduced off-gassing during ISV would thus be expected to improve the overall retention of heavy-oxides within vitrified soil.

Cronenberg, A.W. [Engineering Science and Analysis, Albuquerque, NM (United States); Callow, R.A. [EG and G Idaho, Inc., Idaho Falls, ID (United States)

1992-04-01T23:59:59.000Z

146

Predictions of PuO sub 2 and tracer compound release from ISV melts  

SciTech Connect (OSTI)

Two field tests were conducted at the Idaho National Engineering Laboratory (INEL) to assess in situ vitrification (ISV) suitability for long-term stabilization of buried radioactive waste. Both tests contained rare-earth oxide tracers (DY{sub 2}O{sub 3}, Yb{sub 2}O{sub 3}, and Tb{sub 4}O{sub 7}) to simulate the presence of plutonium in the form of PuO{sub 2}. In the first test, Intermediate Field Test (IFT)-l, approximately 4-% release of tracer material occurred during soil melting and associated off-gassing, while essentially nil release was observed for the second experiment (IFT-2) for which off-gassing was much reduced. This report presents an evaluation of the IFT test data in terms of governing release processes. Prediction of tracer release during ISV melting centered on an assessment of three potential transport mechanisms, (a) tracer diffusion through stagnant pool, (b) tracer transport by convective currents, and (c) tracer carry-off by escaping gas bubbles. Analysis indicates that tracer release by escaping gas is the dominant release mechanism, which is consistent with video records of gas bubble escape from the ISV melt surface. Quantitative mass transport predictions were also made for the IFT-I test conditions, indicating similarity between the 4-% release data and calculational results at viscosities of {approx} poise and tracer diffusivities of {approx}10{sub {minus}6} CM{sup 2}/s. Since PuO{sub 2} has similar chemical and transport (diffusivity) properties as the rare-earth tracers used in the rare earth tracers used in the IFT experiments, release of PuO{sub 2} is predicted for similar off-gassing conditions. Reduced off-gassing during ISV would thus be expected to improve the overall retention of heavy-oxides within vitrified soil.

Cronenberg, A.W. (Engineering Science and Analysis, Albuquerque, NM (United States)); Callow, R.A. (EG and G Idaho, Inc., Idaho Falls, ID (United States))

1992-04-01T23:59:59.000Z

147

Protective Force Program  

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

To prescribe Department of Energy policy, responsibilities, and requirements for the management and operation of the Protective Force Program. Chg 1 dated 2-13-95. Cancels DOE O 5632.7 and DOE O 5632.8.

1995-02-13T23:59:59.000Z

148

ATLAS Metadata Task Force  

E-Print Network [OSTI]

ATLAS Metadata Task Force D. Costanzo, J. Cranshaw, S.provided and approved by the ATLAS TDAQ and DCS Connectinformation, go to http://atlas-connect-forum.web.cern.ch/

Costanzo, D.; ATLAS Collaboration

2009-01-01T23:59:59.000Z

149

Federal Protective Force  

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

This Manual establishes requirements for the management and operation of the Department of Energy (DOE) Federal protective forces (FPFs). Cancels DOE M 470.4-3, Chg 1. Canceled by DOE O 473.3.

2009-07-15T23:59:59.000Z

150

Constraint and Restoring Force  

E-Print Network [OSTI]

Long-lived sensor network applications must be able to self-repair and adapt to changing demands. We introduce a new approach for doing so: Constraint and Restoring Force. CRF is a physics-inspired framework for computing ...

Beal, Jacob

2007-08-24T23:59:59.000Z

151

Weak nuclear forces cause the strong nuclear force  

E-Print Network [OSTI]

We determine the strength of the weak nuclear force which holds the lattices of the elementary particles together. We also determine the strength of the strong nuclear force which emanates from the sides of the nuclear lattices. The strong force is the sum of the unsaturated weak forces at the surface of the nuclear lattices. The strong force is then about ten to the power of 6 times stronger than the weak force between two lattice points.

E. L. Koschmieder

2007-12-11T23:59:59.000Z

152

Effect of room air recirculation delay on the decay rate of tracer gas  

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

Effect of room air recirculation delay on the decay rate of tracer gas Effect of room air recirculation delay on the decay rate of tracer gas concentration Title Effect of room air recirculation delay on the decay rate of tracer gas concentration Publication Type Journal Article Year of Publication 2007 Authors Lorenzetti, David M., Astrid H. Kristoffersen, and Ashok J. Gadgil Journal Indoor Air Pagination 7 Keywords recirculating ventilation, tracer decay rate Abstract Tracer gas measurements are used to estimate the flow rate of fresh air into a room or building. These methods commonly account for the decay of tracer gas concentration as the result of ventilation air supply and infiltration, using a well-mixed model of the space. Some researchers also have considered the effect of leakage in the ventilation ductwork. This paper considers the effect of recirculation through ventilation ducts on the calculated fresh air supply rate. Transport delay in the ducts can significantly alter the time evolution of tracer concentration, and hence alter the estimated air change rate.

153

Effect of room air recirculation delay on the decay rate of tracer gas  

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

Effect of room air recirculation delay on the decay rate of tracer gas Effect of room air recirculation delay on the decay rate of tracer gas Title Effect of room air recirculation delay on the decay rate of tracer gas Publication Type Conference Proceedings Year of Publication 2004 Authors Kristoffersen, Astrid H., Ashok J. Gadgil, and David M. Lorenzetti Conference Name 9th International Conference on Air Distribution in Rooms - RoomVent 2004, Pagination pp 6 Date Published September 5-8, 2 Conference Location Coimbra, Portugal Abstract Tracer gas measurements are commonly used to estimate the fresh air exchange rate in a room or building. Published tracer decay methods account for fresh air supply, infiltration, and leaks in ductwork. However, the time delay associated with a ventilation system recirculating tracer back to the room also affects the decay rate. We present an analytical study of tracer gas decay in a well-mixed, mechanically-ventilated room with recirculation. The analysis shows that failing to account for delays can lead to under- or over-estimates of the fresh air supply, depending on whether the decay rate calculation includes the duct volume

154

Predictions of tracer transport in interwell tracer tests at the C-Hole complex. Yucca Mountain site characterization project report milestone 4077  

SciTech Connect (OSTI)

This report presents predictions of tracer transport in interwell tracer tests that are to be conducted at the C-Hole complex at the Nevada Test Site on behalf of the Yucca Mountain Site Characterization Project. The predictions are used to make specific recommendations about the manner in which the tracer test should be conducted to best satisfy the needs of the Project. The objective of he tracer tests is to study flow and species transport under saturated conditions in the fractured tuffs near Yucca Mountain, Nevada, the site of a potential high-level nuclear waste repository. The potential repository will be located in the unsaturated zone within Yucca Mountain. The saturated zone beneath and around the mountain represents the final barrier to transport to the accessible environment that radionuclides will encounter if they breach the engineered barriers within the repository and the barriers to flow and transport provided by the unsaturated zone. Background information on the C-Holes is provided in Section 1.1, and the planned tracer testing program is discussed in Section 1.2.

Reimus, P.W.

1996-09-01T23:59:59.000Z

155

Tracers for monitoring the activity of sodium/glucose cotransporters in health and disease  

DOE Patents [OSTI]

Radiolabeled tracers for sodium/glucose cotransporters (SGLTs), their synthesis, and their use are provided. The tracers are methyl or ethyl pyranosides having an equatorial hydroxyl group at carbon-2 and a C 1 preferred conformation, radiolabeled with .sup.18F, .sup.123I, or .sup.124I, or free hexoses radiolabeled with .sup.18F, .sup.123I, or .sup.124. Also provided are in vivo and in vitro techniques for using these and other tracers as analytical and diagnostic tools to study glucose transport, in health and disease, and to evaluate therapeutic interventions.

Wright, Ernest M; Barrio, Jorge R; Hirayama, Bruce A; Kepe, Vladimir

2014-09-30T23:59:59.000Z

156

Using Atom Interferometry to Search for New Forces  

SciTech Connect (OSTI)

Atom interferometry is a rapidly advancing field and this Letter proposes an experiment based on existing technology that can search for new short distance forces. With current technology it is possible to improve the sensitivity by up to a factor of 10{sup 2} and near-future advances will be able to rewrite the limits for forces with ranges from 100 {micro}m to 1km.

Wacker, Jay G.; /SLAC

2009-12-11T23:59:59.000Z

157

Future of Telecommunications  

Science Journals Connector (OSTI)

... . G. Radley, of the Post Office Research Station at Dollis Hill, spoke on Telecommunications of the future. He pointed out that in 1914, although wire telephony had been ...

1941-11-15T23:59:59.000Z

158

Materials for the Future  

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

for the Future The Lab's four Science Pillars harness capabilities for solutions to threats- on national and global scales. Contacts Pillar Champion Mary Hockaday Email Pillar...

159

My Amazing Future 2012  

ScienceCinema (OSTI)

Idaho National Laboratory's My Amazing Future program gives 8th grade women the opportunity to experience careers in science and engineering.

None

2013-05-28T23:59:59.000Z

160

The Future Metropolitan Landscape  

E-Print Network [OSTI]

care for the design of this landscape, for its water, air,The Future Metropolitan Landscape Peter Bosselmann and Denirather to an urbanized landscape with multiple centers,

Bosselmann, Peter; Ruggeri, Deni

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Project definition study for the National Biomedical Tracer Facility  

SciTech Connect (OSTI)

The University of Alabama at Birmingham (UAB) has conducted a study of the proposed National Biomedical Tracer Facility (NBTF). In collaboration with General Atomics, RUST International, Coleman Research Corporation (CRC), IsoMed, Ernst and Young and the advisory committees, they have examined the issues relevant to the NBTF in terms of facility design, operating philosophy, and a business plan. They have utilized resources within UAB, CRC and Chem-Nuclear to develop recommendations on environmental, safety and health issues. The Institute of Medicine Panel`s Report on Isotopes for Medicine and the Life Sciences took the results of prior workshops further in developing recommendations for the mission of the NBTF. The IOM panel recommends that the NBTF accelerator have the capacity to accelerate protons to 80 MeV and a minimum of 750 microamperes of current. The panel declined to recommend a cyclotron or a linac. They emphasized a clear focus on research and development for isotope production including target design, separation chemistry and generator development. The facility needs to emphasize education and training in its mission. The facility must focus on radionuclide production for the research and clinical communities. The formation of a public-private partnership resembling the TRIUMF-Nordion model was encouraged. An advisory panel should assist with the NBTF operations and prioritization.

Roozen, K.

1995-02-15T23:59:59.000Z

162

Tracer diffusion in compacted, water-saturated bentonite  

SciTech Connect (OSTI)

Compacted Na-bentonite clay barriers, widely used in theisolation of solid-waste landfills and other contaminated sites, havebeen proposed for a similar use in the disposal of high-level radioactivewaste. Molecular diffusion through the pore space in these barriers playsa key role in their performance, thus motivating recent measurements ofthe apparent diffusion coefficient tensor of water tracers in compacted,water-saturated Na-bentonites. In the present study, we introduce aconceptual model in which the pore space of water-saturated bentonite isdivided into 'macropore' and 'interlayer nanopore' compartments. Withthis model we determine quantitatively the relative contributions ofpore-network geometry (expressed as a geometric factor) and of thediffusive behavior of water molecules near montmorillonite basal surfaces(expressed as a contristivity factor) to the apparent diffusioncoefficient tensor. Our model predicts, in agreement with experiment,that the mean principal value of the apparent diffusion coefficienttensor follows a single relationship when plotted against the partialmontmorillonite dry density (mass of montmorillonite per combined volumeof montmorillonite and pore space). Using a single fitted parameter, themean principal geometric factor, our model successfully describes thisrelationship for a broad range of bentonite-water system, from dilute gelto highly-compacted bentonite with 80 percent of its pore water ininterlayer nanopores.

Bourg, Ian C.; Sposito, Garrison; Bourg, Alain C.M.

2005-08-04T23:59:59.000Z

163

Work Force Restructuring Activities  

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

Force Restructuring Activities Force Restructuring Activities December 10, 2008 Note: Current updates are in bold # Planned Site/Contractor HQ Approved Separations Status General * LM has finalized the compilation of contractor management team separation data for the end of FY07 actuals and end of FY08 and FY09 projections. LM has submitted to Congress the FY 2007 Annual Report on contractor work force restructuring activities. The report has been posted to the LM website. *LM conducted a DOE complex-wide data call to the Field and Operations offices for DOE Contractor Management teams to provide, by program, actual contractor separation data for the end of FY 2008 and projections for the end of FY 2009 and FY 2010. The data will be used to keep senior management informed of upcoming large WFR actions.

164

Simulation of single well tracer tests for surfactantpolymer flooding  

Science Journals Connector (OSTI)

A single well tracer test (SWTT) is a method to investigate the residual oil saturation near the wellbore. It presents an important tool to evaluate enhanced oil recovery (EOR) processes. For EOR evaluation, ...

Peter X. Bu; Abdulkareem M. AlSofi; Jim Liu

2014-10-01T23:59:59.000Z

165

Wintertime Dispersion in a Mountainous Basin at Roanoke, Virginia: Tracer Study  

Science Journals Connector (OSTI)

During January 1989, five nighttime SF6 tracer experiments were conducted in Roanoke, Virginia. The experiments were designed to help identify and understand the dispersion characteristics of a basin atmosphere during winter stagnation ...

K. Jerry Allwine; Brian K. Lamb; Robert Eskridge

1992-11-01T23:59:59.000Z

166

The Hanford Story: Future  

Broader source: Energy.gov [DOE]

The Future Chapter of the Hanford Story illustrates the potential and possibilities offered by a post-cleanup Hanford. From land use plans and preservation at Hanford to economic development and tourism opportunities, the Future chapter touches on a variety of local economic, cultural and environmental perspectives.

167

FUTURE LOGISTICS LIVING LABORATORY  

E-Print Network [OSTI]

FUTURE LOGISTICS LIVING LABORATORY Delivering Innovation The Future Logistics Living Lab is a collaboration between NICTA, SAP and Fraunhofer. Australia's first Living Lab provides a platform for industry and research to work together, to investigate real-world problems and to demonstrate innovative technology

Heiser, Gernot

168

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It is being presented at the Utility Variable-Generation Integration Group Fall Technical Workshop on October 24, 2012.

Hand, M.

2012-10-01T23:59:59.000Z

169

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a Power Systems Engineering Research Center webinar on September 4, 2012.

Mai, T.

2012-08-01T23:59:59.000Z

170

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in an Union of Concerned Scientists webinar on June 12, 2012.

Hand, M.; Mai, T.

2012-08-01T23:59:59.000Z

171

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented in a webinar given by the California Energy Commission.

Hand, M. M.

2012-08-01T23:59:59.000Z

172

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. This presentation was presented in a Wind Powering America webinar on August 15, 2012 and is now available through the Wind Powering America website.

Mai, T.

2012-08-01T23:59:59.000Z

173

Fermilab | Plan for the Future | Fermilab's Future  

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

Fermilab's Future Fermilab's Future 2013-2015 Next Fermilab's research program for 2015 and beyond New facilities at Fermilab, the nation's dedicated particle physics laboratory, would provide thousands of scientists from across the United States and around the world with world-class scientific opportunities. In collaboration with the Department of Energy and the particle physics community, Fermilab is pursuing a strategic plan that addresses fundamental questions about the physical laws that govern matter, energy, space and time. Fermilab is advancing plans for the best facilities in the world for the exploration of neutrinos and rare subatomic processes, far beyond current global capabilities. The proposed construction of a two-megawatt high-intensity proton accelerator, Project X, would enable a comprehensive

174

Glass mixing theory and tracer study results from the SF-10 run  

SciTech Connect (OSTI)

A general, partial differential equation governing glass mixing in the Slurry Fed Ceramic Melter (SFCM) was derived and a solution obtained based upon certain simplifying assumptions. Tracer studies were then conducted in the SFCM during the SF-10 run to test the theory and characterize glass mixing in this melter. Analysis of the tracer data shows that glass mixing in the SFCM can be explained by use of a model of two, well-mixed tanks in series.

Bowman, B.W.; Routt, K.R.

1988-08-01T23:59:59.000Z

175

Utility of Bromide and Heat Tracers for Aquifer Characterization Affected by Highly Transient Flow Conditions  

SciTech Connect (OSTI)

A tracer test using both bromide and heat tracers conducted at the Integrated Field Research Challenge site in Hanford 300 Area (300A), Washington, provided an instrument for evaluating the utility of bromide and heat tracers for aquifer characterization. The bromide tracer data were critical to improving the calibration of the flow model complicated by the highly dynamic nature of the flow field. However, most bromide concentrations were obtained from fully screened observation wells, lacking depth-specific resolution for vertical characterization. On the other hand, depth-specific temperature data were relatively simple and inexpensive to acquire. However, temperature-driven fluid density effects influenced heat plume movement. Moreover, the temperature data contained noise caused by heating during fluid injection and sampling events. Using the hydraulic conductivity distribution obtained from the calibration of the bromide transport model, the temperature depth profiles and arrival times of temperature peaks simulated by the heat transport model were in reasonable agreement with observations. This suggested that heat can be used as a cost-effective proxy for solute tracers for calibration of the hydraulic conductivity distribution, especially in the vertical direction. However, a heat tracer test must be carefully designed and executed to minimize fluid density effects and sources of noise in temperature data. A sensitivity analysis also revealed that heat transport was most sensitive to hydraulic conductivity and porosity, less sensitive to thermal distribution factor, and least sensitive to thermal dispersion and heat conduction. This indicated that the hydraulic conductivity remains the primary calibration parameter for heat transport.

Ma, Rui; Zheng, Chunmiao; Zachara, John M.; Tonkin, Matthew J.

2012-08-29T23:59:59.000Z

176

Direct Aerosol Forcing Uncertainty  

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

Understanding sources of uncertainty in aerosol direct radiative forcing (DRF), the difference in a given radiative flux component with and without aerosol, is essential to quantifying changes in Earth's radiation budget. We examine the uncertainty in DRF due to measurement uncertainty in the quantities on which it depends: aerosol optical depth, single scattering albedo, asymmetry parameter, solar geometry, and surface albedo. Direct radiative forcing at the top of the atmosphere and at the surface as well as sensitivities, the changes in DRF in response to unit changes in individual aerosol or surface properties, are calculated at three locations representing distinct aerosol types and radiative environments. The uncertainty in DRF associated with a given property is computed as the product of the sensitivity and typical measurement uncertainty in the respective aerosol or surface property. Sensitivity and uncertainty values permit estimation of total uncertainty in calculated DRF and identification of properties that most limit accuracy in estimating forcing. Total uncertainties in modeled local diurnally averaged forcing range from 0.2 to 1.3 W m-2 (42 to 20%) depending on location (from tropical to polar sites), solar zenith angle, surface reflectance, aerosol type, and aerosol optical depth. The largest contributor to total uncertainty in DRF is usually single scattering albedo; however decreasing measurement uncertainties for any property would increase accuracy in DRF. Comparison of two radiative transfer models suggests the contribution of modeling error is small compared to the total uncertainty although comparable to uncertainty arising from some individual properties.

Mccomiskey, Allison

177

Protective Force Program  

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

Establishes policy, requirements, responsibilities, and authorities, for the management and operation of the Department of Energy (DOE) Protective Force (PF) Program. Extended until 7-7-06 by DOE N 251.64, dated 7-7-05 Cancels: DOE 5632.7A

2000-06-30T23:59:59.000Z

178

Work Force Discipline  

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

The order provides guidance and procedures and states responsibilities for maintaining work force discipline in DOE. Chg 1, dated 3-11-85; Chg 2, dated 1-6-86; Chg 3, dated 3-21-89; Chg 4, dated 8-2-90; Chg 5, dated 3-9-92; Chg 6, dated 8-21-92, cancels Chg 5.

1983-03-23T23:59:59.000Z

179

Contractor Protective Force  

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

This Manual establishes requirements for the management and operation of the U.S. Department of Energy contractor protective forces. Cancels: DOE M 470.4-3 Chg 1, CRD (Attachment 2) only, except for Section C. Canceled by DOE O 473.3.

2008-11-05T23:59:59.000Z

180

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented at Wind Powering America States Summit. The Summit, which follows the American Wind Energy Association's (AWEA's) annual WINDPOWER Conference and Exhibition, provides state Wind Working Groups, state energy officials, U.S. Energy Department and national laboratory representatives, and professional and institutional partners an opportunity to review successes, opportunities, and challenges for wind energy and plan future collaboration.

DeMeo, E.

2012-08-01T23:59:59.000Z

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


181

Collaborative future event recommendation  

E-Print Network [OSTI]

We demonstrate a method for collaborative ranking of future events. Previous work on recommender systems typically relies on feedback on a particular item, such as a movie, and generalizes this to other items or other ...

Minkov, Einat

182

Preparing for the Future  

E-Print Network [OSTI]

tx H2O | pg. 12 Preparing for the Future Story by Kathy Wythe Preparing for the Future University establishes water management degree program Texas A&M University launched an interdisci-plinary water management degree programduring the fall... 2005 semester with 12 stu-dents seeking either master?s or doctorate degrees in water management and hydrologic sciences. The degree program, the first in Texas, includes 42 faculty members in 12 departments from four differ- ent colleges, said Ron...

Wythe, Kathy

2006-01-01T23:59:59.000Z

183

Buying Hedge with Futures  

E-Print Network [OSTI]

Agricultural Economist, Kansas State University Agricultural Experiment Station and Cooperative Extension Service. Many bulk purchasers of agricultural com- modities need price risk management tools to help stabilize input prices. Livestock feeders... anticipating future feed needs or grain export- ers making commitments to sell grain are two users of agricultural commodities who could benefit from input price management strate- gies. A common tool is a buying, or long, hedge using futures. Producers...

Welch, Mark; Kastens, Terry L.

2009-01-07T23:59:59.000Z

184

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented to the 2012 Western Conference of Public Service Commissioners, during their June, 2012, meeting. The Western Conference of Public Service Commissioners is a regional association within the National Association of Regulatory Utility Commissioners (NARUC).

Hand, M. M.

2012-08-01T23:59:59.000Z

185

Modified entropic force  

SciTech Connect (OSTI)

The theory of statistical thermodynamics tells us the equipartition law of energy does not hold in the limit of very low temperatures. It is found the Debye model is very successful in explaining the experimental results for most of the solid objects. Motivated by this fact, we modify the entropic force formula which is proposed very recently. Since the Unruh temperature is proportional to the strength of the gravitational field, so the modified entropic force formula is an extension of the Newtonian gravity to the weak field. On the contrary, general relativity extends Newtonian gravity to the strong field case. Corresponding to Debye temperature, there exists a Debye acceleration g{sub D}. It is found the Debye acceleration is g{sub D}=10{sup -15} N kg{sup -1}. This acceleration is very much smaller than the gravitational acceleration 10{sup -4} N kg{sup -1} which is felt by Neptune and the gravitational acceleration 10{sup -10} N kg{sup -1} felt by the Sun. Therefore, the modified entropic force can be very well approximated by the Newtonian gravity in the Solar System and in the Galaxy. With this Debye acceleration, we find the current cosmic speeding up can be explained without invoking any kind of dark energy.

Gao Changjun [National Astronomical Observatories, Chinese Academy of Sciences, Key Laboratory of Optical Astronomy, NAOC, CAS, Beijing, 100012 and Kavli Institute for Theoretical Physics China, CAS, Beijing 100190 (China)

2010-04-15T23:59:59.000Z

186

Future Climate Analysis  

SciTech Connect (OSTI)

This Analysis/Model Report (AMR) documents an analysis that was performed to estimate climatic variables for the next 10,000 years by forecasting the timing and nature of climate change at Yucca Mountain (YM), Nevada (Figure 1), the site of a potential repository for high-level radioactive waste. The future-climate estimates are based on an analysis of past-climate data from analog meteorological stations, and this AMR provides the rationale for the selection of these analog stations. The stations selected provide an upper and a lower climate bound for each future climate, and the data from those sites will provide input to the infiltration model (USGS 2000) and for the total system performance assessment for the Site Recommendation (TSPA-SR) at YM. Forecasting long-term future climates, especially for the next 10,000 years, is highly speculative and rarely attempted. A very limited literature exists concerning the subject, largely from the British radioactive waste disposal effort. The discussion presented here is one method, among many, of establishing upper and lower bounds for future climate estimates. The method used here involves selecting a particular past climate from many past climates, as an analog for future climate. Other studies might develop a different rationale or select other past climates resulting in a different future climate analog. Revision 00 of this AMR was prepared in accordance with the ''Work Direction and Planning Document for Future Climate Analysis'' (Peterman 1999) under Interagency Agreement DE-AI08-97NV12033 with the U.S. Department of Energy (DOE). The planning document for the technical scope, content, and management of ICN 01 of this AMR is the ''Technical Work Plan for Unsaturated Zone (UZ) Flow and Transport Process Model Report'' (BSC 2001a). The scope for the TBV resolution actions in this ICN is described in the ''Technical Work Plan for: Integrated Management of Technical Product Input Department''. (BSC 2001b, Addendum B, Section 4.1).

James Houseworth

2001-10-12T23:59:59.000Z

187

Laboratory testing and modeling to evaluate perfluorocarbon compounds as tracers in geothermal systems  

SciTech Connect (OSTI)

The thermal stability and adsorption characteristics of three perfluorinated hydrocarbon compounds were evaluated under geothermal conditions to determine the potential to use these compounds as conservative or thermally-degrading tracers in Engineered (or Enhanced) Geothermal Systems (EGS). The three compounds tested were perfluorodimethyl-cyclobutane (PDCB), perfluoromethylcyclohexane (PMCH), and perfluorotrimethylcyclohexane (PTCH), which are collectively referred to as perfluorinated tracers, or PFTs. Two sets of duplicate tests were conducted in batch mode in gold-bag reactors, with one pair of reactors charged with a synthetic geothermal brine containing the PFTs and a second pair was charged with the brine-PFT mixture plus a mineral assemblage chosen to be representative of activated fractures in an EGS reservoir. A fifth reactor was charged with deionized water containing the three PFTs. The experiments were conducted at {approx}100 bar, with temperatures ranging from 230 C to 300 C. Semi-analytical and numerical modeling was also conducted to show how the PFTs could be used in conjunction with other tracers to interrogate surface area to volume ratios and temperature profiles in EGS reservoirs. Both single-well and cross-hole tracer tests are simulated to illustrate how different suites of tracers could be used to accomplish these objectives. The single-well tests are especially attractive for EGS applications because they allow the effectiveness of a stimulation to be evaluated without drilling a second well.

Reimus, Paul W [Los Alamos National Laboratory

2011-01-21T23:59:59.000Z

188

Production and acceleration of tracer encapsulated solid pellets for particle transport diagnostics  

Science Journals Connector (OSTI)

A new method for producing a tracer-encapsulated solid pellet (TESPEL) has been developed for a local deposition of the tracer ions in the core plasma and an accurate measurement of the particle transport. The method allows manufacturing of TESPELs in the form of polystyrene shells containing lithium hydride inside as a tracer. The TESPEL acceleration has been successfully performed and photos of the pellets in flight confirmed the TESPEL integrity. For the pellets with diameter 300400 ? m and wall thickness 4050 ? m the pellet fragility becomes insignificant. Calculation of the TESPEL ablation rate has showed that the achieved pellet velocities and sizes are appropriate for the injection into a medium size plasma. It was proposed to fractionate the tracer contents in order to provide better localization of the deposited tracer ions in the plasma. The data obtained in these experiments have proved that injection of the TESPEL made from the plastic shells can be a promising tool for the particle transport diagnostics.

K. V. Khlopenkov; S. Sudo

1998-01-01T23:59:59.000Z

189

Advancing reactive tracer methods for measuring thermal evolution in CO2-and water-based geothermal reservoirs  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This project aims to develop reactive tracer method for monitoring thermal drawdown in enhanced geothermal systems.

190

Report of the Fermilab ILC Citizens' Task Force  

SciTech Connect (OSTI)

Fermi National Accelerator Laboratory convened the ILC Citizens' Task Force to provide guidance and advice to the laboratory to ensure that community concerns and ideas are included in all public aspects of planning and design for a proposed future accelerator, the International Linear Collider. In this report, the members of the Task Force describe the process they used to gather and analyze information on all aspects of the proposed accelerator and its potential location at Fermilab in northern Illinois. They present the conclusions and recommendations they reached as a result of the learning process and their subsequent discussions and deliberations. While the Task Force was charged to provide guidance on the ILC, it became clear during the process that the high cost of the proposed accelerator made a near-term start for the project at Fermilab unlikely. Nevertheless, based on a year of extensive learning and dialogue, the Task Force developed a series of recommendations for Fermilab to consider as the laboratory develops all successor projects to the Tevatron. The Task Force recognizes that bringing a next-generation particle physics project to Fermilab will require both a large international effort and the support of the local community. While the Task Force developed its recommendations in response to the parameters of a future ILC, the principles they set forth apply directly to any large project that may be conceived at Fermilab, or at other laboratories, in the future. With this report, the Task Force fulfills its task of guiding Fermilab from the perspective of the local community on how to move forward with a large-scale project while building positive relationships with surrounding communities. The report summarizes the benefits, concerns and potential impacts of bringing a large-scale scientific project to northern Illinois.

None

2008-06-01T23:59:59.000Z

191

Norms of Presentational Force  

E-Print Network [OSTI]

://www.americanforensics.org/uploaded-files/tc_41_3_w05.pdf. Open Access version: http://kuscholarworks.ku.edu/dspace/. 15 hope to illustrate the close connection between emotional appeal and premise adequacy. After arguing that the Declaration of Independence and Constitution secure...Innocenti Manolescu, Beth. "Norms of Presentational Force." Argumentation and Advocacy 41 (2005): 139-51. Official publishers version: http://www.americanforensics.org/uploaded-files/tc_41_3_w05.pdf. 1 Citation: Innocenti Manolescu, Beth...

Innocenti, Beth

2005-01-01T23:59:59.000Z

192

Atomic Force Microscope  

SciTech Connect (OSTI)

The Atomic Force Microscope (AFM) is a recently developed instrument that has achieved atomic resolution imaging of both conducting and non- conducting surfaces. Because the AFM is in the early stages of development, and because of the difficulty of building the instrument, it is currently in use in fewer than ten laboratories worldwide. It promises to be a valuable tool for obtaining information about engineering surfaces and aiding the .study of precision fabrication processes. This paper gives an overview of AFM technology and presents plans to build an instrument designed to look at engineering surfaces.

Day, R.D.; Russell, P.E.

1988-12-01T23:59:59.000Z

193

Introduction to Futures Markets  

E-Print Network [OSTI]

in Chicago. To reduce their risk exposure, grain dealers began selling ?To Arrive? contracts, which specified the future date (usually the month) a speci- fied quantity of grain would be delivered to a particular location at a price identified... in the contract. Fixing the price in advance of deliv- ery reduced the grain dealer?s risk and made it easier to obtain credit to finance grain purchas- es from farmers. The ?To Arrive? contracts were a forerunner of the futures contracts traded today. Although...

Mintert, James R.; Welch, Mark

2009-01-07T23:59:59.000Z

194

Future Climate Analysis  

SciTech Connect (OSTI)

This report documents an analysis that was performed to estimate climatic variables for the next 10,000 years by forecasting the timing and nature of climate change at Yucca Mountain, Nevada, the site of a repository for spent nuclear fuel and high-level radioactive waste. The future-climate estimates are based on an analysis of past-climate data from analog meteorological stations, and this report provides the rationale for the selection of these analog stations. The stations selected provide an upper and a lower climate bound for each future climate, and the data from those sites will provide input to the following reports: ''Simulation of Net Infiltration for Present-Day and Potential Future Climates'' (BSC 2004 [DIRS 170007]), ''Total System Performance Assessment (TSPA) Model/Analysis for the License Application'' (BSC 2004 [DIRS 168504]), ''Features, Events, and Processes in UZ Flow and Transport'' (BSC 2004 [DIRS 170012]), and ''Features, Events, and Processes in SZ Flow and Transport'' (BSC 2004 [DIRS 170013]). Forecasting long-term future climates, especially for the next 10,000 years, is highly speculative and rarely attempted. A very limited literature exists concerning the subject, largely from the British radioactive waste disposal effort. The discussion presented here is one available forecasting method for establishing upper and lower bounds for future climate estimates. The selection of different methods is directly dependent on the available evidence used to build a forecasting argument. The method used here involves selecting a particular past climate from many past climates, as an analog for future climate. While alternative analyses are possible for the case presented for Yucca Mountain, the evidence (data) used would be the same and the conclusions would not be expected to drastically change. Other studies might develop a different rationale or select other past climates resulting in a different future climate analog. Other alternative approaches could include simulation of climate over the 10,000-year period; however, this modeling extrapolation is well beyond the bounds of current scientific practice and would not provide results with better confidence. A corroborative alternative approach may be found in ''Future Climate Analysis-10,000 Years to 1,000,000 Years After Present'' (Sharpe 2003 [DIRS 161591]). The current revision of this report is prepared in accordance with ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654]).

C. G. Cambell

2004-09-03T23:59:59.000Z

195

Renewable Electricity Futures (Presentation)  

SciTech Connect (OSTI)

This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It was presented at the 2012 RE AMP Annual Meeting. RE-AMP is an active network of 144 nonprofits and foundations across eight Midwestern states working on climate change and energy policy with the goal of reducing global warming pollution economy-wide 80% by 2050.

Mai, T.

2012-08-01T23:59:59.000Z

196

USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE  

Open Energy Info (EERE)

NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT Details Activities (1) Areas (1) Regions (0) Abstract: A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development in the Coso geothermal field. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the

197

Enthalpy and mass flowrate measurements for two-phase geothermal production by Tracer dilution techniques  

SciTech Connect (OSTI)

A new technique has been developed for the measurement of steam mass flowrate, water mass flowrate and total enthalpy of two-phase fluids produced from geothermal wells. The method involves precisely metered injection of liquid and vapor phase tracers into the two-phase production pipeline and concurrent sampling of each phase downstream of the injection point. Subsequent chemical analysis of the steam and water samples for tracer content enables the calculation of mass flowrate for each phase given the known mass injection rates of tracer. This technique has now been used extensively at the Coso geothermal project, owned and operated by California Energy Company. Initial validation of the method was performed at the Roosevelt Hot Springs geothermal project on wells producing to individual production separators equipped with orificeplate flowmeters for each phase.

Hirtz, Paul; Lovekin, Jim; Copp, John; Buck, Cliff; Adams, Mike

1993-01-28T23:59:59.000Z

198

A comprehensive study of the analysis and economic benefits of radioactive tracer engineered simulation procedures  

SciTech Connect (OSTI)

Hydraulic Fracturing is an important technology to enhance production from tight gas reservoirs. Several techniques have been utilized to attempt to evaluate the effectiveness of hydraulic fracturing treatments. One technique, radioactive tracers, is currently used on over 15 % of the stimulation treatments performed in the U.S. With proper materials, design, and execution, tracers can be used to locate the presence and concentration of proppant at the wellbore in order to evaluate vertical and radial proppant distribution. A comprehensive study of over 100 fracture treatments has been completed in which radioactive tracers were used along with production logs, stress logs, post-fracturing completion reports, and production history to analyze completion effectiveness in four different reservoirs. Additionally, an economic benefit model was constructed to evaluate the benefit/cost ratio of applying the technology.

Fisher, K.; Robinson, B.M.; Voneiff, G.W.

1995-12-31T23:59:59.000Z

199

The Elemental Composition of High-Energy Cosmic Rays: Measurements with TRACER  

E-Print Network [OSTI]

TRACER ('Transition Radiation Array for Cosmic Energetic Radiation') is a balloon borne instrument that has been developed to directly measure the composition and energy spectra of individual heavy elements up to 10^15 eV per particle. TRACER achieves a large geometric factor (5 m^2 sr) through the use of a Transition Radiation Detector utilizing arrays of single wire proportional tubes. TRACER has measured the energy spectra of the elements O, Ne, Mg, Si, S, Ar, Ca, and Fe. The energy spectra reach energies in excess of 10^14 eV per particle and exhibit nearly the same spectral index (2.65 +/- 0.05) for all elements.

P. J. Boyle

2008-10-16T23:59:59.000Z

200

Interpretations of Tracer Tests Performed in the Culebra Dolomite at the Waste Isolation Pilot Plant Site  

SciTech Connect (OSTI)

This report provides (1) an overview of all tracer testing conducted in the Culebra Dolomite Member of the Rustler Formation at the Waste Isolation Pilot Plant (WPP) site, (2) a detailed description of the important information about the 1995-96 tracer tests and the current interpretations of the data, and (3) a summary of the knowledge gained to date through tracer testing in the Culebra. Tracer tests have been used to identify transport processes occurring within the Culebra and quantify relevant parameters for use in performance assessment of the WIPP. The data, especially those from the tests performed in 1995-96, provide valuable insight into transport processes within the Culebra. Interpretations of the tracer tests in combination with geologic information, hydraulic-test information, and laboratory studies have resulted in a greatly improved conceptual model of transport processes within the Culebra. At locations where the transmissivity of the Culebra is low (< 4 x 10{sup -6} m{sup 2}/s), we conceptualize the Culebra as a single-porosity medium in which advection occurs largely through the primary porosity of the dolomite matrix. At locations where the transmissivity of the Culebra is high (> 4 x 10{sup -6} m{sup 2}/s), we conceptualize the Culebra as a heterogeneous, layered, fractured medium in which advection occurs largely through fractures and solutes diffuse between fractures and matrix at multiple rates. The variations in diffusion rate can be attributed to both variations in fracture spacing (or the spacing of advective pathways) and matrix heterogeneity. Flow and transport appear to be concentrated in the lower Culebra. At all locations, diffusion is the dominant transport process in the portions of the matrix that tracer does not access by flow.

MEIGS,LUCY C.; BEAUHEIM,RICHARD L.; JONES,TOYA L.

2000-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Future of Optical Astronomy  

Science Journals Connector (OSTI)

... I BELIEVE that optical astronomy in Great Britain has now reached, for virtually the first time in its history, ... studied in universities and in Government and industrial laboratories; but with two exceptions, optical astronomy is studied almost entirely in university laboratories only, and its future largely depends on ...

D. E. BLACKWELL

1962-09-01T23:59:59.000Z

202

Quantum motor and future  

E-Print Network [OSTI]

In a popular language, the possibilities of the Casimir expulsion effect are presented, which can be the basis of quantum motors. Such motors can be in the form of a special multilayer thin film with periodic and complex nanosized structures. Quantum motors of the type of the Casimir platforms can be the base of transportation, energy and many other systems in the future.

Fateev, Evgeny G

2013-01-01T23:59:59.000Z

203

Quantum motor and future  

E-Print Network [OSTI]

In a popular language, the possibilities of the Casimir expulsion effect are presented, which can be the basis of quantum motors. Such motors can be in the form of a special multilayer thin film with periodic and complex nanosized structures. Quantum motors of the type of the Casimir platforms can be the base of transportation, energy and many other systems in the future.

Evgeny G. Fateev

2013-01-20T23:59:59.000Z

204

Simulation in the future  

Science Journals Connector (OSTI)

Seven panelists, all simulation consultants, give their view of the future of simulation. There is some consistency in the views with four areas being mentioned by three of the panelists, and four areas being mentioned by two of the panelists. However, ...

Jerry Banks

2000-12-01T23:59:59.000Z

205

Food for the Future  

Science Journals Connector (OSTI)

...harnessing free sources of energy, includ-ing the...volcanoes, and thermal gradients of the...exchangers, wind converters, and tide tur-bines...with quantities of energy of the magnitude...Fresh Water from the Ocean (Con-servation...P. C. Putnam, Energy in the Future (Van...

J. G. Harrar

1955-08-19T23:59:59.000Z

206

TEXT Pro Force Training  

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

Basic Protective Basic Protective Force Training Program DOE/IG-0641 March 2004 * None of the 10 sites included instruction in rappelling even though it was part of the special response team core curriculum and continued to be offered by the Nonprolif- eration and National Security Institute; * Only one site conducted basic training on use of a shotgun, despite the fact that a num- ber of sites used the weapon for breaching exercises and other purposes; and, * Seven of the sites modified prescribed training techniques by reducing the intensity or delivery method for skills that some security experts characterized as critical, such as handcuffing, hand-to- hand combat, and vehicle assaults. We found that the Department's facilities were not required to report departures from the core

207

Progress on a TWP-ICE Monsoon Case Study  

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

25-mb 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work Progress on a TWP-ICE Monsoon Case Study Ann Fridlind and Andrew Ackerman * NASA GISS thanks to Jon Petch * ECMWF Shaocheng Xie * LLNL TWP-ICE and ACTIVE Science Teams DOE ARM Program and Data Archive NASA Radiation Sciences Program NASA Advanced Supercomputing Division 18th Annual ARM Science Team Meeting 10 March 2008 Outline Introduction 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work 1 Introduction TWP-ICE monsoon period GISS set-up 2 25-mb large-scale forcing Initial results Comparison with ECMWF forcing style Tropopause moisture analysis 3 10-mb large-scale forcing Tropopause moisture analysis Final results 4 Tracers Measurements Model results 5 Future work Outline Introduction 25-mb large-scale forcing 10-mb large-scale forcing Tracers Future work TWP-ICE monsoon

208

FUTURES with Jaime Escalante  

SciTech Connect (OSTI)

The United States Department of Energy awarded the Foundation for Advancements in Science and Education (FASE) $826,000 as support to produce the second set of FUTURES segments consisting of 12, 15-minute programs. The programs provide motivation for students to study math by connecting math to the work place and real-life problem scenarios. The programs are broadcast in 50 states through PBS Elementary and Secondary Service (E/SS). The grant term ended on December 16, 1993 and this final report documents program and financial activity results. The 12 episodes are titled: Animal Care, Meteorology, Mass Communication, Advanced Energy, Oceanography, Graphic Design, Future Habitats, Environmental Science & Technology, Fitness & Physical Performance, Interpersonal Communications, Advanced Transportation and Product Design. Each program addresses as many as ten careers or job types within the broader field named. Minority and gender-balanced role models appear throughout the programs.

NONE

1996-08-01T23:59:59.000Z

209

Driving the Future  

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

the Future the Future A r g o n n e ' s v e h i c l e s ys t e m s r e s e A r c h 3 2 v e h i c l e s y s t e m s r e s e a r c h At Argonne National Laboratory's Center for Transportation Research, our goal is to accelerate the development and deployment of vehicle technologies that help reduce our nation's petroleum consumption and greenhouse gas emissions. Our Vehicle Systems research focuses on maximizing vehicle performance and efficiency through in-depth studies of the interactions and integration of components and controls in a large, complex vehicle system. Working with the U.S. Department of Energy (DOE) and the automotive industry, we investigate the potential of vehicle technologies ranging from alternative fuels to advanced powertrains, such as plug-in hybrids and electric vehicles. Funding

210

Buildings of the Future  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy (DOE) and the Pacific Northwest National Laboratory are developing a vision for future buildingsat least one hundred years from todaybased on the collective views of thought leaders. As part of this effort, we will explore technology and demographic trends that could revolutionize the built environment across energy, water, environment, resilient design, health, security, and productivity.

211

Quantifying the role of internal climate variability in future climate trends  

E-Print Network [OSTI]

in the climate system gives rise to large uncertainty in projections of future climate. The uncertainty in future Ensemble Project includes 40 climate change simulations run with the same coupled atmosphere-ocean-sea ice-land model (the NCAR Community Climate System Model 3; CCSM3) and forced with identical projected changes

Schumacher, Russ

212

Using Thermally-Degrading, Partitioning, and Nonreactive Tracers to Determine Temperature Distribution and Fracture/Heat Transfer Surface Area in Geothermal Reservoirs  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Project Summary. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate quantitative characterization of temperature distributions and surface area available for heat transfer in EGS.

213

Protective Force Firearms Qualification Courses  

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

PROTECTIVE FORCE PROTECTIVE FORCE FIREARMS QUALIFICATION COURSES U.S. DEPARTMENT OF ENERGY Office of Health, Safety and Security AVAILABLE ONLINE AT: INITIATED BY: http://www.hss.energy.gov Office of Health, Safety and Security Protective Force Firearms Qualification Courses July 2011 i TABLE OF CONTENTS SECTION A - APPROVED FIREARMS QUALIFICATION COURSES .......................... I-1 CHAPTER I . INTRODUCTION ................................................................................... I-1 1. Scope .................................................................................................................. I-1 2. Content ............................................................................................................... I-1

214

ADVANCES IN ATMOSPHERIC SCIENCES, VOL. 25, NO. 5, 2008, 805814 Diagnosing Ocean Tracer Transport from Sellafield  

E-Print Network [OSTI]

DRANGE1,2,3,4 , and Eric DELEERSNIJDER5 1 Nansen Environmental and Remote Sensing Center, Bergen, Norway applications thereof, idealized releases of passive tracers from the nuclear fuel reprocessing plants­814, doi: 10.1007/s00376-008-0805-y. 1. Introduction Estimating the integrated effect of processes acting

Drange, Helge

215

Project EARTH-14-SHELLDP1: Developing Metal Isotope Tracers for Understanding Sediment Depositional Environments  

E-Print Network [OSTI]

Project EARTH-14-SHELLDP1: Developing Metal Isotope Tracers for Understanding Sediment Depositional and the mechanisms behind temporal and spatial variations in organic matter quantity and quality. The project work will involve becoming proficient in clean room procedures, chemical separation techniques

Henderson, Gideon

216

Lignin biomarkers as tracers of mercury sources in lakes water column  

E-Print Network [OSTI]

Lignin biomarkers as tracers of mercury sources in lakes water column Jean-Franc¸ois Ouellet ? Marc the autochthonous from the allochthonous organic matter (OM), lignin derived biomarker signa- tures [Lambda, S/V, C/V, P/(V ? S), 3,5-Bd/V and (Ad/Al)v] were used. Since lignin is exclusively produced by terrigenous

Long, Bernard

217

USING LIDAR TO MEASURE PERFLUOROCARBON TRACERS FOR THE VERIFICATION AND MONITORING  

E-Print Network [OSTI]

USING LIDAR TO MEASURE PERFLUOROCARBON TRACERS FOR THE VERIFICATION AND MONITORING OF CAP AND COVER to detect PMCH (perfluoromethylcyclohexane, one of a group of PFTs used at BNL). Laboratory measurements then measured down to 1 ppb-m. These results are very promising and show great potential for monitoring

218

New Tracers Identify Hydraulic Fracturing Fluids and Accidental Releases from Oil and Gas Operations  

E-Print Network [OSTI]

New Tracers Identify Hydraulic Fracturing Fluids and Accidental Releases from Oil and Gas fingerprints of fluids that return to the surface after high volume hydraulic fracturing of unconventional oil the hydraulic fracturing process, resulting in the relative enrichment of boron and lithium in HFFF

Jackson, Robert B.

219

Physical causes and modeling challenges of anomalous diffusion of sediment tracers  

E-Print Network [OSTI]

Physical causes and modeling challenges of anomalous diffusion of sediment tracers Douglas Jerolmack Earth & Environmental Science, UPenn [sediment@sas.upenn.edu] "Bridging the Gap", Princeton U., 2" describable by: 1. Particle volume, v [L3 ]. 2.Average velocity, us , of bed load sediment [L/T]. 3. Surface

220

Ca and 87/86 Sr isotopes as tracers of silicate weathering in small  

E-Print Network [OSTI]

44/40 Ca and 87/86 Sr isotopes as tracers of silicate weathering in small catchments of the Massif, Laboratory Division, Orléans, France 2 U.S. Geological Survey, Water Resources Division, Menlo Park, CA 94025).Measurements of 44/40 Ca isotope ratios (44/40 Ca measured by the double spike method on TIMS and normalized

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "forcing tracers future" 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

Evaluating the ability of a numerical weather prediction model to forecast tracer concentrations during ETEX 2  

E-Print Network [OSTI]

Evaluating the ability of a numerical weather prediction model to forecast tracer concentrations an operational numerical weather prediction model to forecast air quality are also investigated. These potential a numerical weather prediction (NWP) model independently of the CTM. The NWP output is typically archived

Dacre, Helen

222

Dynamic Reservoir Characterization Of Naturally Fractured Reservoirs From An Inter-Well Tracer Test  

E-Print Network [OSTI]

-spot pattern and breakthrough time of the injected tracer. Once the model became capable of matching historical field production, a 1-year prediction run was conducted for optimization. Cumulative oil production was increased by 8,000 bbl by allocating more...

Kilicaslan, Ufuk

2013-12-03T23:59:59.000Z

223

An Improved Gas Chromatographic Method for the Determination of Perfluorocarbon Tracers in the Atmosphere  

Science Journals Connector (OSTI)

......U.S. Department of Energy, New York, New York...U.S. Department of Energy, New York, New York...quantity, hence the cost, of the tracer required...experiments in the geysers geothermal area. RH. Gudiksen...U. S. Department of Energy, New York, NY(1991......

Raymond J. Lagomarsino

1996-09-01T23:59:59.000Z

224

Seasonal Variation in Monthly Average Air Change Rates Using Passive Tracer Gas Measurements  

E-Print Network [OSTI]

of indoor air pollution sources. Concurrently, great efforts are made to make buildings energy efficient 1970s, while less attention has been paid to IAQ. Insufficient venting of indoor air pollutantsSeasonal Variation in Monthly Average Air Change Rates Using Passive Tracer Gas Measurements Marie

Hansen, René Rydhof

225

Supporting BioMedical Information Retrieval: The BioTracer Approach  

E-Print Network [OSTI]

Supporting BioMedical Information Retrieval: The BioTracer Approach Heri Ramampiaro1 and Chen Li2 1 biomedical in- formation has put a high demand on existing search systems. Such a tool should be able the relevant ones the highest rank- ing. Focusing on biomedical information, this work investigates how

Li, Chen

226

Air Force Renewable Energy Programs  

Broader source: Energy.gov [DOE]

Presentation covers Air Force Renewable Energy Programs and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

227

Advancing Reactive Tracer Methods for Measurement of Thermal Evolution in Geothermal Reservoirs: Final Report  

SciTech Connect (OSTI)

The injection of cold fluids into engineered geothermal system (EGS) and conventional geothermal reservoirs may be done to help extract heat from the subsurface or to maintain pressures within the reservoir (e.g., Rose et al., 2001). As these injected fluids move along fractures, they acquire heat from the rock matrix and remove it from the reservoir as they are extracted to the surface. A consequence of such injection is the migration of a cold-fluid front through the reservoir (Figure 1) that could eventually reach the production well and result in the lowering of the temperature of the produced fluids (thermal breakthrough). Efficient operation of an EGS as well as conventional geothermal systems involving cold-fluid injection requires accurate and timely information about thermal depletion of the reservoir in response to operation. In particular, accurate predictions of the time to thermal breakthrough and subsequent rate of thermal drawdown are necessary for reservoir management, design of fracture stimulation and well drilling programs, and forecasting of economic return. A potential method for estimating migration of a cold front between an injection well and a production well is through application of reactive tracer tests, using chemical whose rate of degradation is dependent on the reservoir temperature between the two wells (e.g., Robinson 1985). With repeated tests, the rate of migration of the thermal front can be determined, and the time to thermal breakthrough calculated. While the basic theory behind the concept of thermal tracers has been understood for some time, effective application of the method has yet to be demonstrated. This report describes results of a study that used several methods to investigate application of reactive tracers to monitoring the thermal evolution of a geothermal reservoir. These methods included (1) mathematical investigation of the sensitivity of known and hypothetical reactive tracers, (2) laboratory testing of novel tracers that would improve method sensitivity, (3) development of a software tool for design and interpretation of reactive tracer tests and (4) field testing of the reactive tracer temperature monitoring concept.

Mitchell A. Plummer; Carl D. Palmer; Earl D. Mattson; Laurence C. Hull; George D. Redden

2011-07-01T23:59:59.000Z

228

Evidence of Multi-Process Matrix Diffusion in a Single Fracturefrom a Field Tracer Test  

SciTech Connect (OSTI)

Compared to values inferred from laboratory tests on matrix cores, many field tracer tests in fractured rock have shown enhanced matrix diffusion coefficient values (obtained using a single-process matrix-diffusion model with a homogeneous matrix diffusion coefficient). To investigate this phenomenon, a conceptual model of multi-process matrix diffusion in a single-fracture system was developed. In this model, three matrix diffusion processes of different diffusion rates were assumed to coexist: (1) diffusion into stagnant water and infilling materials within fractures, (2) diffusion into a degraded matrix zone, and (3) further diffusion into an intact matrix zone. The validity of the conceptual model was then demonstrated by analyzing a unique tracer test conducted using a long-time constant-concentration injection. The tracer-test analysis was conducted using a numerical model capable of tracking the multiple matrix-diffusion processes. The analysis showed that in the degraded zone, a diffusion process with an enhanced diffusion rate controlled the steep rising limb and decay-like falling limb in the observed breakthrough curve, whereas in the intact matrix zone, a process involving a lower diffusion rate affected the long-term middle platform of slowly increasing tracer concentration. The different matrix-diffusion-coefficient values revealed from the field tracer test are consistent with the variability of matrix diffusion coefficient measured for rock cores with different degrees of fracture coating at the same site. By comparing to the matrix diffusion coefficient calibrated using single-process matrix diffusion, we demonstrated that this multi-process matrix diffusion may contribute to the enhanced matrix-diffusion-coefficient values for single-fracture systems at the field scale.

Zhou, Quanlin; Liu, Hui-Hai; Bodvarsson, Gudmundur; Molz, Fred J.

2005-06-11T23:59:59.000Z

229

Bioenergy: America's Energy Future  

ScienceCinema (OSTI)

Bioenergy: America's Energy Future is a short documentary film showcasing examples of bioenergy innovations across the biomass supply chain and the United States. The film highlights a few stories of individuals and companies who are passionate about achieving the promise of biofuels and addressing the challenges of developing a thriving bioeconomy. This outreach product supports media initiatives to expand the public's understanding of the bioenergy industry and sustainable transportation and was developed by the U.S. Department of Energy Bioenergy Technologies Office (BETO), Oak Ridge National Laboratory, Green Focus Films, and BCS, Incorporated.

Nelson, Bruce; Volz, Sara; Male, Johnathan; Wolfson, Johnathan; Pray, Todd; Mayfield, Stephen; Atherton, Scott; Weaver, Brandon

2014-08-12T23:59:59.000Z

230

Bioenergy: America's Energy Future  

SciTech Connect (OSTI)

Bioenergy: America's Energy Future is a short documentary film showcasing examples of bioenergy innovations across the biomass supply chain and the United States. The film highlights a few stories of individuals and companies who are passionate about achieving the promise of biofuels and addressing the challenges of developing a thriving bioeconomy. This outreach product supports media initiatives to expand the public's understanding of the bioenergy industry and sustainable transportation and was developed by the U.S. Department of Energy Bioenergy Technologies Office (BETO), Oak Ridge National Laboratory, Green Focus Films, and BCS, Incorporated.

Nelson, Bruce; Volz, Sara; Male, Johnathan; Wolfson, Johnathan; Pray, Todd; Mayfield, Stephen; Atherton, Scott; Weaver, Brandon

2014-07-31T23:59:59.000Z

231

Selling Hedge with Futures  

E-Print Network [OSTI]

trades price risk for basis risk. Once more, the basis forecast is a key to hedging with futures. Did Bill receive $5.60 per bushel for his en- tire crop? The answer depends on the quantity produced. If he produced his historical average of 24...,000 bushels, he was protected at $5.60 per bushel for the 15,000 bushels he hedged and received a price at harvest of $5.40 per bushel for the unhedged 9,000 bushels. This yields a weight- ed average price of $5.525 per bushel. Had he produced more than...

Kastens, Terry L.; Welch, Mark

2009-01-07T23:59:59.000Z

232

The Future of Bioethics  

Science Journals Connector (OSTI)

...Brody calls for a revolution in "future bioethics." He argues persuasively that "we need to understand how certain facts, issues, and questions turn invisible to us, depending on where we happen to be placed in a hierarchy of power" (italics in the original). According to Brody, "feminism teaches bioethics... Since the inception of bioethics as a discipline almost 40 years ago, its scholars and practitioners have devoted much of their time and attention to two sets of issues namely, ethical quandaries posed by medical treatment, particularly end-of-life care,...

Marks J.H.

2009-07-30T23:59:59.000Z

233

Fiber for the future  

SciTech Connect (OSTI)

This is an interview with J.P. van Buijtenen, principal geneticist of the Texas Forest Service and professor at the Texas Agriculture Experiment Station, College Station, Texas. The maintenance of adequate supplies of wood and fiber for the pulp and paper industry is discussed. Tree improvement and more intensive forestry are highlighted as critical in attaining increased yields. Other topics discussed include: the establishment of second generation southern pine seed orchards, the economics of hardwood production in the South, and the future of short rotation energy plantations.

Not Available

1982-08-01T23:59:59.000Z

234

The Forces which lift Aeroplanes  

Science Journals Connector (OSTI)

... cylinder. To avoid unnecessary complications we use Heaviside's rational electromagnetic units. Then the hydroelectric current i equals the line-integral of the hydro-magnetic force, i.e. of ... actions-at-a-distance. From the propeller blade the way is not far to the turbine blade. The type of driving force will remain the same whether the driving medium ...

V. K. F. BJERKNES

1924-10-04T23:59:59.000Z

235

Milk Futures, Options and Basis  

E-Print Network [OSTI]

The milk futures and options market enables producers and processors to manage price risk. This publication explains hedging, margin accounts, basis and how to track it, and other fundamentals of the futures and options market....

Haigh, Michael; Stockton, Matthew; Anderson, David P.; Schwart Jr., Robert B.

2001-10-12T23:59:59.000Z

236

Air Force Renewable Energy Programs  

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

1 1 Ken Gray P.E. HQ AFCESA /CENR Air Force Renewable Energy Programs April, 2011 FUPWG "Make Energy a Consideration in All We Do" I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Topics  Air Force Energy Use  Air Force Facility Energy Center  Current RE Generation  Project Development System  Programmed RE Generation FY11-13  Goal Achievement 2 I n t e g r i t y - S e r v i c e - E x c e l l e n c e THINK GREEN, BUILD GREEN, Air Force 2010 Energy Use The Air Force spent approximately $8.2 billion for energy in 2010; an increase of 22% from 2009 Energy Cost and Consumption Trends Energy Cost Breakdown Aviation 79% Facilities 17% 3 Aviation 84% Facilities 12% Vehicles & Equipment

237

Overview of SIMS-Based Experimental Studies of Tracer Diffusion in Solids and Application to Mg Self-Diffusion  

SciTech Connect (OSTI)

Tracer diffusivities provide the most fundamental information on diffusion in materials and are the foundation of robust diffusion databases. Compared to traditional radiotracer techniques that utilize radioactive isotopes, the secondary ion mass spectrometry (SIMS) based thin-film technique for tracer diffusion is based on the use of enriched stable isotopes that can be accurately profiled using SIMS. Experimental procedures & techniques that are utilized for the measurement of tracer diffusion coefficients are presented for pure magnesium, which presents some unique challenges due to the ease of oxidation. The development of a modified Shewmon-Rhines diffusion capsule for annealing Mg and an ultra-high vacuum (UHV) system for sputter deposition of Mg isotopes are discussed. Optimized conditions for accurate SIMS depth profiling in polycrystalline Mg are provided. An automated procedure for the correction of heat-up and cool-down times during tracer diffusion annealing is discussed. The non-linear fitting of a SIMS depth profile data using the thin film Gaussian solution to obtain the tracer diffusivity along with the background tracer concentration and tracer film thickness is discussed. An Arrhenius fit of the Mg self-diffusion data obtained using the low-temperature SIMS measurements from this study and the high-temperature radiotracer measurements of Shewmon and Rhines (1954) was found to be a good representation of both types of diffusion data that cover a broad range of temperatures between 250 - 627 C (523 900 K).

Kulkarni, Nagraj S [ORNL; Warmack, Robert J Bruce [ORNL; Radhakrishnan, Balasubramaniam [ORNL; HunterJr., Jerry [Virginia Polytechnic Institute and State University; Sohn, Yong Ho [University of Central Florida; Coffey, Kevin [University of Central Florida; Murch, Prof. Graeme [University of Newcastle, NSW, Australia; Belova, Irina [University of Newcastle, NSW, Australia

2014-01-01T23:59:59.000Z

238

NYMEX Futures Prices  

U.S. Energy Information Administration (EIA) Indexed Site

NYMEX Futures Prices NYMEX Futures Prices (Crude Oil in Dollars per Barrel, All Others in Dollars per Gallon) Period: Daily Weekly Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Product/ Contract 12/10/13 12/11/13 12/12/13 12/13/13 12/16/13 12/17/13 View History Crude Oil (Light-Sweet, Cushing, Oklahoma) Contract 1 98.51 97.44 97.5 96.6 97.48 97.22 1983-2013 Contract 2 98.66 97.72 97.82 96.93 97.77 97.47 1985-2013 Contract 3 98.58 97.72 97.77 96.91 97.7 97.36 1983-2013 Contract 4 98.19 97.39 97.42 96.55 97.28 96.92 1985-2013 Reformulated Regular Gasoline (New York Harbor) Contract 1 1985-2006 Contract 2 1994-2006 Contract 3 1984-2006 Contract 4 1994-2006 RBOB Regular Gasoline (New York Harbor)

239

Securing Our Energy Future  

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

Our Energy Our Energy Securing Our Energy Future Future World Energy Demand Growing Dramatically 12 1400 1200 10 1000 2000 2050 2100 Population of Population of Industrialized Countries Industrialized Countries Wo W rl r d o ld Po P pu p la l ti t on o o u a i n Wo W rl r d E d ne n rg r y o l E e gy Co C ns n um u pt p io i n o s m t on Population (Billions) Energy Consumption (Qbtu / yr) 8 800 6 600 4 400 2 200 0 0 1900 1950 Year U.S. Electricity Generation by Fue U.S. Electricity Generation by Fuel Electric Generation by Fuel 1980 - 2030 (billion kilowatt-hours) 0 1000 2000 3000 4000 5000 6000 1980 1990 2000 2010 2020 2030 Renewables/Other Nuclear Natural Gas Petroleum Coal Source: EIA Annual Energy Outlook 2008 Why Do We Keep Coal in the Mix? Why Do We Keep Coal in the Mix? World Energy Reserves World Energy Reserves Source: Energy Information Administration/ International Reserves Data

240

Hydrogen & Our Energy Future  

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

Hydrogen Program Hydrogen Program www.hydrogen.energy.gov Hydrogen & Our Energy Future  | HydrOgEn & Our EnErgy FuturE U.S. Department of Energy Hydrogen Program www.hydrogen.energy.gov u.S. department of Energy |  www.hydrogen.energy.gov Hydrogen & Our Energy Future Contents Introduction ................................................... p.1 Hydrogen - An Overview ................................... p.3 Production ..................................................... p.5 Delivery ....................................................... p.15 Storage ........................................................ p.19 Application and Use ........................................ p.25 Safety, Codes and Standards ............................... p.33

Note: This page contains sample records for the topic "forcing tracers future" 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

The research programme Future Agriculture  

E-Print Network [OSTI]

The research programme Future Agriculture ­ livestock, crops and land use Welcome to a lunch.slu.se/futureagriculture For questions, please contact KatarinaVrede (katarina.vrede@slu.se) About Future Agriculture ­ livestock, crops and land use The changes and challenges facing agriculture in the future will be substantial, not only

242

Oscillating String as a Force Sensor in Scanning Force Microscopy  

Science Journals Connector (OSTI)

We present a sensor that uses an oscillating string to detect forces. A cantilever beam serves as a sample stage. The string is attached to the free end of ... the free end of the beam modifies the string tension...

A. Stalder; U. Drig

1995-01-01T23:59:59.000Z

243

future science group  

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

35 35 ISSN 1759-7269 10.4155/BFS.13.56 © 2013 Future Science Ltd While lignocellulosic feedstocks represent a promising renewable and sustainable alternative to petroleum- based fuels, high production costs associated with con- version processes currently prevent them from being economically viable for large-scale implementation [1]. The production of biofuels from lignocellulosic feedstocks requires the depolymerization of cell wall carbohydrates into simple sugars that can be utilized during fermentation. However, the desired cellulose microfibrils are surrounded by a matrix of lignin and hemicellulose, which greatly inhibits their accessibility to hydrolytic enzymes [1,2]. Lignin is a phenolic polymer that reinforces the secondary cell wall, confers struc-

244

future science group  

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

61 61 ISSN 1759-7269 10.4155/BFS.11.150 © 2012 Future Science Ltd In 1950 Reese et al. proposed a mechanism for cel- lulose hydrolysis, which involved two general com- ponents, C 1 and C x , acting in sequence [1]. According to the model, the C 1 component first disrupted and swelled the crystalline cellulose, possibly releasing soluble oligo saccharides into solution. The C x compo- nent, which was shown to have endoglucanase activity, was then able to effectively hydrolyze the previously inaccessible substrate along with the soluble oligo- saccharides. Furthermore, the activity of the mixture was found to be higher than the activity of each com- ponent acting alone, indicating that the components were acting synergistically. In the following years, a number of groups began to identify and characterize

245

FAQ : Future Scientists  

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

FAQ FAQ How do I get started as a school volunteer? You can talk with program coordinator, Rick Diamond, or any of the EETD staff who have already participated in the Future Scientist program. To contact Rick Diamond, please call (510) 486-4459 or enable JavaScript within your browser's preferences. When you are ready to plan a classroom visit, call the Community Resources for Science (CRS) and ask about school and grade availability for your topic. CRS staff will place you with a K-6 grade teacher in the East Bay. CRS can also provide excellent advise on classroom guidance and materials, and handle all the contact logistics. All you do is give them a call. Community Resources for Science 1375 Ada Street Berkeley, CA 94702 (510) 654-6433 http://www.crscience.org/

246

Future Experimental Programs  

E-Print Network [OSTI]

I was asked to discuss future experimental programs even though I'm a theorist. As a result, I present my own personal views on where the field is, and where it is going, based on what I myself have been working on. In particular, I discuss why we need expeditions into high energies to find clues to where the relevant energy scale is for dark matter, baryon asymmetry, and neutrino mass. I also argue that the next energy frontier machine should be justified on the basis of what we know, namely the mass of the Higgs boson, so that we will learn what energy we should aim at once we nail the Higgs sector. Finally I make remarks on dark energy.

Hitoshi Murayama

2014-01-06T23:59:59.000Z

247

Identification and characterization of conservative organic tracers for use as hydrologic tracers for the Yucca Mountain site characterization project: Quality Assurance Project Plan, Revision 1; Quarterly progress report, October 1, 1993--December 31, 1993  

SciTech Connect (OSTI)

The purpose of this work is to identify and characterize candidate conservative organic tracers for use as hydrologic tracers for experiments to be conducted at the Yucca Mountain C-well complex. During this quarter the main effort was directed towards rewriting the quality assurance program in preparation for a review and audit by the USGS. However, due to budget constraints the review and audit were not carried out. The tracer QA plan and standard operating procedures (SOPs) were revised and copies are included in the report. Instrumental problems were encountered and corrected with the addition of new integration and sample control software. In the sampling, there was an unexplained peak in the chromatograms of the tracers being tested in the light tuff. This was not correctable and these experiments will be repeated in the next quarter.

Stetzenbach, K.J.

1993-12-13T23:59:59.000Z

248

TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY  

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

TRACER DETECTION TECHNOLOGY CORP. TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY 3463 MAGIC DRIVE, SUITE T-19 SAN ANTONIO, TX 78229 March 29, 2009 Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave., SW. Washington, DC 20585. GC-62@hq.doe.gov ATTN: TECHNOLOGY TRANSFER QUESTIONS. Response to Request for Information - Federal Register "The Costs and Benefits of Dealing with Federal Laboratories" This "white paper" is intended to deal constructively with issues relating to technology transfer and interaction of small businesses with federal laboratories, and should be considered a response to #6 (other). As a small businessman and entrepreneur engaged in the

249

TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY  

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

TRACER DETECTION TECHNOLOGY CORP. TRACER DETECTION TECHNOLOGY CORP. PRODUCTS AND SERVICES FOR CORPORATE AND GOVERNMENT SECURITY 3463 MAGIC DRIVE, SUITE T-19 SAN ANTONIO, TX 78229 March 29, 2009 Office of the Assistant General Counsel for Technology Transfer and Intellectual Property U.S. Department of Energy 1000 Independence Ave., SW. Washington, DC 20585. GC-62@hq.doe.gov ATTN: TECHNOLOGY TRANSFER QUESTIONS. Response to Request for Information - Federal Register "The Costs and Benefits of Dealing with Federal Laboratories" This "white paper" is intended to deal constructively with issues relating to technology transfer and interaction of small businesses with federal laboratories, and should be considered a response to #6 (other). As a small businessman and entrepreneur engaged in the

250

Evaluation of Tracers for Use in the International Field Experiment on CO2 Ocean Sequestration  

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

Tracers for Use in the International Field Experiment Tracers for Use in the International Field Experiment on CO 2 Ocean Sequestration E. Eric Adams (eeadams@mit.edu; 617-253-6595) Dept. of Civil and Environmental Engineering Massachusetts Institute of Technology Cambridge, MA 02139 USA Introduction An international field experiment is scheduled to take place off of the west coast of the big island of Hawaii during the second half of 2001 (Adams, et al., 1999; Herzog, et al., 2000). Scientists representing some dozen institutions in five countries on four continents are expected to participate. The experiment will involve several sub-experiments in which CO 2 will be released at a depth of 800 m as a buoyant liquid at rates of 0.1 to 1.0 kg/s. The releases will each be made for a duration of about one hour using nozzles with differing diameters and numbers of ports.

251

Calibration of lateral force measurements in atomic force microscopy with a piezoresistive force sensor  

SciTech Connect (OSTI)

We present here a method to calibrate the lateral force in the atomic force microscope. This method makes use of an accurately calibrated force sensor composed of a tipless piezoresistive cantilever and corresponding signal amplifying and processing electronics. Two ways of force loading with different loading points were compared by scanning the top and side edges of the piezoresistive cantilever. Conversion factors between the lateral force and photodiode signal using three types of atomic force microscope cantilevers with rectangular geometries (normal spring constants from 0.092 to 1.24 N/m and lateral stiffness from 10.34 to 101.06 N/m) were measured in experiments using the proposed method. When used properly, this method calibrates the conversion factors that are accurate to {+-}12.4% or better. This standard has less error than the commonly used method based on the cantilever's beam mechanics. Methods such of this allow accurate and direct conversion between lateral forces and photodiode signals without any knowledge of the cantilevers and the laser measuring system.

Xie Hui; Vitard, Julien; Haliyo, Sinan; Regnier, Stephane [Institut des Systemes Intelligents et Robotique (ISIR), Universite Pierre et Marie Curie-Paris 6/CNRS, 18 Route du Panorama-BP 61, 92265 Fontenay-Aux-Roses (France); Boukallel, Mehdi [Laboratoire de Robotique et Mesorobotique (LRM), CEA, 18 Route du Panorama-BP 61, 92265 Fontenay-Aux-Roses (France)

2008-03-15T23:59:59.000Z

252

Flux Measurements of Volatile Organic Compounds from an Urban Tower Platform in Houston, Texas: Trends and Tracers  

E-Print Network [OSTI]

and traffic counts except during variable working hours. To assign measured fluxes to local sources, we tested a bulk flux footprint model (Kormann and Meixner model) designed for uniform emission surface areas in this urban, heterogeneous landscape. Tracer...

Hale, Martin C

2014-05-08T23:59:59.000Z

253

Integrated Approach to Use Natural Chemical and Isotopic Tracers to Estimate Fracture Spacing and Surface Area in EGS Systems  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. This objective of this project is to develop an innovative approach to estimate fracture surface area and spacing through interpretation of signals of natural chemical and isotopic tracers.

254

Field studies of streamflow generation using natural and injected tracers on Bickford and Walker Branch Watersheds  

SciTech Connect (OSTI)

Field studies of streamflow generation were undertaken on two forested watersheds, the West Road subcatchment of Bickford Watershed in central Massachusetts and the West Fork of Walker Branch Watershed in eastern Tennessee. A major component of the research was development of a two-stage methodology for the use of naturally-occurring {sup 222}Rn as a tracer. The first of the two stages was solving a mass-balance equation for {sup 222}Rn around a stream reach of interest in order to calculate Rn{sub q}, the {sup 222}Rn content of the lateral inflow to the reach; a conservative tracer (chloride) and a volatile tracer (propane) were injected into the study stream to account for lateral inflow to, and volatilization from, the study reach. The second stage involved quantitative comparison of Rn{sub q} to the measured {sup 222}Rn concentrations of different subsurface waters in order to assess how important these waters were in contributing lateral inflow to the stream reach.

Genereux, D.; Hemond, H. (Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering); Mulholland, P. (Oak Ridge National Lab., TN (United States))

1992-05-01T23:59:59.000Z

255

Comparison of observed and predicted short-term tracer gas concentrations in the atmosphere  

SciTech Connect (OSTI)

The Savannah River Laboratory is in the process of conducting a series of atmospheric tracer studies. The inert gas sulfurhexafluoride is released from a height of 62 m for 15 min and concentrations in air are measured on sampling arcs up to 30 km downwind of the release point. Maximum 15 min. air concentrations from 14 of these tracer tests have been compared with the ground-level, centerline air concentration predicted with a Gaussian plume atmospheric transport model using eight different sets of atmospheric dispersion parameters. Preliminary analysis of the results from these comparisons indicates that the dispersion parameters developed at Juelich, West Germany, based on tracers released from a height of 50 m, give the best overall agreement between the predicted and observed values. The median value of the ratio of predicted to observed air concentrations for this set of parameters is 1.3, and the correlation coefficient between the log of the predictions and the log of the observations is 0.72. For the commonly used Pasquill-Gifford dispersion parameters, the values of these same statistics are 4.4 and 0.68, respectively. The Gaussian plume model is widely used to predict air concentrations resulting from short-term radionuclide release to the atmosphere. The results of comparisons such as these must be considered whenever the Gaussian model is used for such purposes. 22 references, 3 tables.

Cotter, S.J.; Miller, C.W.; Lin, W.C.T.

1985-01-01T23:59:59.000Z

256

High-resolution stratospheric tracer fields estimated from satellite observations using Lagrangian trajectory calculations  

SciTech Connect (OSTI)

A technique is introduced by which high-resolution tracer fields may be constructed from low-resolution satellite observations. The technique relies upon the continual cascade of tracer variance from large to small scales and makes use of wind fields generated by a data assimilation scheme. To demonstrate its usefulness, the technique has been applied in a study of isentropic distributions of nitrous oxide in the winter midstratosphere, using measurements made by the Improved Stratospheric and Mesospheric Sounder (ISAMS) instrument on the Upper Atmosphere Research Satellite (UARS). The results show that the high-resolution fields significantly increase the amount of information that is available from the satellite observations. The fields give insights into the characteristic structure and evolution of tracer distributions at scales that are normally obscured from view. Two results are particularly noteworthy. First, at the interface between low and middle latitudes there is evidence of active mixing. This mixing occurs on the eastern, equatorward side of air that is being drawn toward high latitudes around the polar vortex. Second, in the anticyclone, a complex pattern of transport is revealed. Air drawn in from low latitudes spirals together with ambient midlatitude air. Small scales are generated relatively slowly in the organized flow, and persistent filamentary structures, with transverse scales of hundreds of kilometers or greater, are seen.

Sutton, R.T.; Maclean, H.; Swinbank, R.; O`Neill, A.; Taylor, F.W. [Oxford Univ., Oxford (United Kingdom)] [Oxford Univ., Oxford (United Kingdom); [Meteorological Office, Bracknell, Berkshire (United Kingdom); [Univ. of Reading, Reading (United Kingdom)

1994-10-01T23:59:59.000Z

257

Uncertainties in Air Exchange using Continuous-Injection, Long-Term Sampling Tracer-Gas Methods  

SciTech Connect (OSTI)

The PerFluorocarbon Tracer (PFT) method is a low-cost approach commonly used for measuring air exchange in buildings using tracer gases. It is a specific application of the more general Continuous-Injection, Long-Term Sampling (CILTS) method. The technique is widely used but there has been little work on understanding the uncertainties (both precision and bias) associated with its use, particularly given that it is typically deployed by untrained or lightly trained people to minimize experimental costs. In this article we will conduct a first-principles error analysis to estimate the uncertainties and then compare that analysis to CILTS measurements that were over-sampled, through the use of multiple tracers and emitter and sampler distribution patterns, in three houses. We find that the CILTS method can have an overall uncertainty of 10-15percent in ideal circumstances, but that even in highly controlled field experiments done by trained experimenters expected uncertainties are about 20percent. In addition, there are many field conditions (such as open windows) where CILTS is not likely to provide any quantitative data. Even avoiding the worst situations of assumption violations CILTS should be considered as having a something like a ?factor of two? uncertainty for the broad field trials that it is typically used in. We provide guidance on how to deploy CILTS and design the experiment to minimize uncertainties.

Sherman, Max H.; Walker, Iain S.; Lunden, Melissa M.

2013-12-01T23:59:59.000Z

258

Prediction of vehicle impact forces  

E-Print Network [OSTI]

PREDICTION OF VEHICLE IMPACT FORCES A Thesis by DARRELL LAINE KADERKA Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1990 Major Subject...: Civil Engineering PREDICTION OF VEHICLE IMPACT FORCES A Thesis by DARRELL LAINE KADERKA Approved as to style and content by: C. Eugene Buth (Chair of Committee) W. ynn Beason (Member) I? D n E. B ay (Member) es T. P. Yao (Departmen Head) May...

Kaderka, Darrell Laine

2012-06-07T23:59:59.000Z

259

A multiple-tracer approach to understanding regional groundwater flow in the Snake Valley area of the eastern Great Basin, USA  

Science Journals Connector (OSTI)

Abstract Groundwater in Snake Valley and surrounding basins in the eastern Great Basin province of the western United States is being targeted for large-scale groundwater extraction and export. Concern about declining groundwater levels and spring flows in western Utah as a result of the proposed groundwater withdrawals has led to efforts that have improved the understanding of this regional groundwater flow system. In this study, environmental tracers (?2H, ?18O, 3H, 14C, 3He, 4He, 20Ne, 40Ar, 84Kr, and 129Xe) and major ions from 142 sites were evaluated to investigate groundwater recharge and flow-path characteristics. With few exceptions, ?2H and ?18O show that most valley groundwater has similar ratios to mountain springs, indicating recharge is dominated by relatively high-altitude precipitation. The spatial distribution of 3H, terrigenic helium (4Heterr), and 3H/3He ages shows that modern groundwater (temperatures (NGTs) are generally 111C in Snake and southern Spring Valleys and >11C to the east of Snake Valley and indicate a hydraulic discontinuity between Snake and Tule Valleys across the northern Confusion Range. The combination of \\{NGTs\\} and 4Heterr shows that the majority of Snake Valley groundwater discharges as springs, evapotranspiration, and well withdrawals within Snake Valley rather than continuing northeastward to discharge at either Fish Springs or the Great Salt Lake Playa. The refined understanding of groundwater recharge and flow paths acquired from this multi-tracer investigation has broad implications for interbasin subsurface flow estimates and future groundwater development.

Philip M. Gardner; Victor M. Heilweil

2014-01-01T23:59:59.000Z

260

Future plans at ISOLDE  

E-Print Network [OSTI]

The CERN ISOLDE facility has operated for over 30 years delivering beams of exotic ions to an ever-growing user community. The facility went through a major up-grade in the early 1990s with the move from the 600 MeV synchrocyclotron to the 1 GeV PS-Booster proton synchrotron. This was followed by a primary proton beam energy up grade to 1.4 GeV in 1999. Lately, an important step forward was taken with the start of the REX-ISOLDE experiment for charge breeding and post acceleration of exotic ions. CERN has recently decided on a consolidation project for the facility to assure that the required number of shifts can be delivered in the future. An overview will be given of the on-going consolidation and development programme and its implications on the physics programme, in particular the REX-ISOLDE post accelerator experiment. An important parameter for a better yield of very exotic elements is the primary proton beam intensity, beam energy and time structure. The possible short-term improvements of, in particul...

Lindroos, M

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Mitotic force generators and chromosome segregation  

E-Print Network [OSTI]

38:1838 Mitotic force generators 79. McDonald HB, StewartREVIEW Mitotic force generators and chromosome segregationbelow) that the force generators (MTs or motors) have only *

Civelekoglu-Scholey, Gul; Scholey, Jonathan M.

2010-01-01T23:59:59.000Z

262

Quantification of multiple methane emission sources at landfills using a double tracer technique  

SciTech Connect (OSTI)

Research highlights: > Precise and reliable measurements of emissions from landfills are needed. > A tracer technique involving simultaneous release of two tracers was proven successful. > Measurements to be performed at times with low changing trends in barometric pressure. - Abstract: A double tracer technique was used successfully to quantify whole-site methane (CH{sub 4}) emissions from Fakse Landfill. Emissions from different sections of the landfill were quantified by using two different tracers. A scaled-down version of the tracer technique measuring close-by to localized sources having limited areal extent was also used to quantify emissions from on-site sources at the landfill facility, including a composting area and a sewage sludge storage pit. Three field campaigns were performed. At all three field campaigns an overall leak search showed that the CH{sub 4} emissions from the old landfill section were localized to the leachate collection wells and slope areas. The average CH{sub 4} emissions from the old landfill section were quantified to be 32.6 {+-} 7.4 kg CH{sub 4} h{sup -1}, whereas the source at the new section was quantified to be 10.3 {+-} 5.3 kg CH{sub 4} h{sup -1}. The CH{sub 4} emission from the compost area was 0.5 {+-} 0.25 kg CH{sub 4} h{sup -1}, whereas the carbon dioxide (CO{sub 2}) and nitrous oxide (N{sub 2}O) flux was quantified to be in the order of 332 {+-} 166 kg CO{sub 2} h{sup -1} and 0.06 {+-} 0.03 kg N{sub 2}O h{sup -1}, respectively. The sludge pit located west of the compost material was quantified to have an emission of 2.4 {+-} 0.63 kg h{sup -1} CH{sub 4}, and 0.03 {+-} 0.01 kg h{sup -1} N{sub 2}O.

Scheutz, C., E-mail: chs@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej, Building 113, 2800 Kongens Lyngby (Denmark); Samuelsson, J., E-mail: jerker.samuelsson@fluxsense.se [Chalmers University of Technology/FluxSense AB, SE-412 96 Goeteborg (Sweden); Fredenslund, A.M., E-mail: amf@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej, Building 113, 2800 Kongens Lyngby (Denmark); Kjeldsen, P., E-mail: pk@env.dtu.dk [Department of Environmental Engineering, Technical University of Denmark, Miljovej, Building 113, 2800 Kongens Lyngby (Denmark)

2011-05-15T23:59:59.000Z

263

Biomass 2009: Fueling Our Future  

Broader source: Energy.gov [DOE]

We would like to thank everyone who attended Biomass 2009: Fueling Our Future, including the speakers, moderators, sponsors, and exhibitors who helped make the conference a great success.

264

Recapitalizing EMSL: Meeting Future Science  

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

Recapitalizing EMSL: Meeting Future Science and Technology Challenges Environmental Molecular Sciences Laboratory 2008 DISCLAIMER This report was prepared as an account of work...

265

Future Applications Monitor Critical Structures  

E-Print Network [OSTI]

Future Applications · Monitor Critical Structures ­ Bridges, dams, pipelines, power integrity for rescue efforts ­ Expendable for unstable conditions ­ Power system repair ­ Firefighting

Huston, Dryver R.

266

Saft Factory of the Future  

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

Future Principal Investigator - Peter Denoncourt Presentors - Karen Conner Saft America Inc. June 11, 2011 Project ID: ARRAVT007 This presentation does not contain any proprietary,...

267

Task Force Approach | Department of Energy  

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

Task Force Approach Task Force Approach Task Force Approach Task Force Approach Results of the ARI Task Force: The purpose of the ARI Task Force is to 1) identify, prioritize, and resolve issues to enable sites and programs to implement revitalization efforts more effectively and 2) to facilitate programmatic incorporation of revitalization concepts into DOE's programmatic business environments. The Task Force must do this through coordinating and facilitating communication and connections, sharing lessons learned, broadening the general knowledge base, facilitating, analyzing problems, developing implementable solutions, and considering and incorporating broader perspectives and knowledge. The success of the Task Force can be evaluated by impacts to the Department upon its completion. These impacts

268

Sensing mode atomic force microscope  

DOE Patents [OSTI]

An atomic force microscope utilizes a pulse release system and improved method of operation to minimize contact forces between a probe tip affixed to a flexible cantilever and a specimen being measured. The pulse release system includes a magnetic particle affixed proximate the probe tip and an electromagnetic coil. When energized, the electromagnetic coil generates a magnetic field which applies a driving force on the magnetic particle sufficient to overcome adhesive forces exhibited between the probe tip and specimen. The atomic force microscope includes two independently displaceable piezo elements operable along a Z-axis. A controller drives the first Z-axis piezo element to provide a controlled approach between the probe tip and specimen up to a point of contact between the probe tip and specimen. The controller then drives the first Z-axis piezo element to withdraw the cantilever from the specimen. The controller also activates the pulse release system which drives the probe tip away from the specimen during withdrawal. Following withdrawal, the controller adjusts the height of the second Z-axis piezo element to maintain a substantially constant approach distance between successive samples.

Hough, Paul V. C. (Port Jefferson, NY); Wang, Chengpu (Upton, NY)

2003-01-01T23:59:59.000Z

269

The Future of Geothermal Energy  

E-Print Network [OSTI]

The Future of Geothermal Energy Impact of Enhanced Geothermal Systems (EGS) on the United States in the 21st Century #12;The Future of Geothermal Energy Impact of Enhanced Geothermal Systems (EGS and Renewable Energy, Office of Geothermal Technologies, Under DOE Idaho Operations Office Contract DE-AC07-05ID

Laughlin, Robert B.

270

Contact angles and surface forces  

Science Journals Connector (OSTI)

The modern state of the theory of wetting phenomena is considered with special attention to the approach based on the theory of surface forces. Contribution of the effects of molecular, electrostatic and short-range structural forces to wetting films stability and forming contact angles is discussed. The magnitudes of contact angles may be predicted on the basis of isotherms of disjoining pressure of wetting films that include Hamaker constants, electrical potentials of solid-liquid and liquid-gas interfaces, and experimental constants that characterize the structural forces of hydrophilic repulsion and hydrophobic attraction. The constants seem to be the same as in the case of interaction of colloidal particles. In the framework of the suggested approach, the influence of surfactants on wetting phenomena was considered.

N.V. Churaev

1995-01-01T23:59:59.000Z

271

Nuclear force in Lattice QCD  

E-Print Network [OSTI]

We perform the quenched lattice QCD analysis on the nuclear force (baryon-baryon interactions). We employ $20^3\\times 24$ lattice at $\\beta=5.7$ ($a\\simeq 0.19$ fm) with the standard gauge action and the Wilson quark action with the hopping parameters $\\kappa=0.1600, 0.1625, 0.1650$, and generate about 200 gauge configurations. We measure the temporal correlators of the two-baryon system which consists of heavy-light-light quarks. We extract the inter-baryon force as a function of the relative distance $r$. We also evaluate the contribution to the nuclear force from each ``Feynman diagram'' such as the quark-exchange diagram individually, and single out the roles of Pauli-blocking effects or quark exchanges in the inter-baryon interactions.

T. T. Takahashi; T. Doi; H. Suganuma

2006-01-05T23:59:59.000Z

272

Nuclear Forces and Nuclear Systems  

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

Forces and Nuclear Systems Forces and Nuclear Systems Our goal is to achieve a description of nuclear systems ranging in size from the deuteron to nuclear matter and neutron stars using a single parameterization of the nuclear forces. Our work includes both the construction of two- and three-nucleon potentials and the development of many-body techniques for computing nuclear properties with these interactions. Detailed quantitative, computationally intense studies are essential parts of this work. In the last decade we have constructed several realistic two- and three-nucleon potential models. The NN potential, Argonne v18, has a dominant charge-independent piece plus additional charge-dependent and charge-symmetry-breaking terms, including a complete electromagnetic interaction. It fits 4301 pp and np elastic scattering data with a chi**2

273

Interaction forces between oilwater particle interfaces--Non-DLVO forces  

E-Print Network [OSTI]

silica sphere and a butyl or octyl acetate droplet was measured in an aqueous environment using atomic of the water solubility of the organic liquid, in that the same force­distance characteristics were obtained in industrial applications. They include formulation, stability, and rheological properties of emulsions

Chan, Derek Y C

274

Automatic HTS force measurement instrument  

DOE Patents [OSTI]

A device is disclosed for measuring the levitation force of a high temperature superconductor sample with respect to a reference magnet includes a receptacle for holding several high temperature superconductor samples each cooled to superconducting temperature. A rotatable carousel successively locates a selected one of the high temperature superconductor samples in registry with the reference magnet. Mechanism varies the distance between one of the high temperature superconductor samples and the reference magnet, and a sensor measures levitation force of the sample as a function of the distance between the reference magnet and the sample. A method is also disclosed. 3 figs.

Sanders, S.T.; Niemann, R.C.

1999-03-30T23:59:59.000Z

275

Automatic HTS force measurement instrument  

DOE Patents [OSTI]

A device for measuring the levitation force of a high temperature superconductor sample with respect to a reference magnet includes a receptacle for holding several high temperature superconductor samples each cooled to superconducting temperature. A rotatable carousel successively locates a selected one of the high temperature superconductor samples in registry with the reference magnet. Mechanism varies the distance between one of the high temperature superconductor samples and the reference magnet, and a sensor measures levitation force of the sample as a function of the distance between the reference magnet and the sample. A method is also disclosed.

Sanders, Scott T. (Valparaiso, IN); Niemann, Ralph C. (Downers Grove, IL)

1999-01-01T23:59:59.000Z

276

Casimir force on a piston  

E-Print Network [OSTI]

We consider a massless scalar field obeying Dirichlet boundary conditions on the walls of a two-dimensional L x b rectangular box, divided by a movable partition (piston) into two compartments of dimensions a x b and (L-a) x b. We compute the Casimir force on the piston in the limit L -> infinity. Regardless of the value of a/b, the piston is attracted to the nearest end of the box. Asymptotic expressions for the Casimir force on the piston are derived for a > b.

R. M. Cavalcanti

2004-01-26T23:59:59.000Z

277

Solvent-induced forces in protein folding  

SciTech Connect (OSTI)

The solvent-induced forces between various groups on the protein are examined. It is found that the intramolecular hydrophilic forces are likely to be the strongest forces mediated through the solvent. It is argued that these are probably the most important solvent-induced driving forces in the process of protein folding.

Ben-Naim, A. (Hebrew Univ., Jerusalem (Israel))

1990-08-23T23:59:59.000Z

278

A new statistical dispersion model for tracer tests and contaminant spread in porous media  

SciTech Connect (OSTI)

Dispersion of solutes moving in permeable media is an essential control to describe fluid flow in permeable media. Dispersion can be thought of as a spreading of a solute caused by the presence of microscopic inhomogeneities. An accurate model for dispersion is needed for accurate estimation of oil recovery efficiencies and clean up costs of subsurface contaminants. Current approaches utilizing the fickian assumption fall short in describing the real physics of spreading during a solute transport process. Numerous field investigations have shown that dispersivities measured in the field are much larger than those measured in the lab for the same type of porous material. Moreover, field measured dispersivities have been shown to be scale dependent, that is, a tracer test conducted over a longer travel path will yield a larger dispersivity value than a tracer test conducted in the same geologic formation over a shorter travel path. Numerous approaches to address this problem have been developed yet none attempted to go beyond the Fickian dispersion assumption. In this study, a convective dispersivity is introduced. New model assumes that dispersion is dimensionless and mainly determined by pore size distribution. The new model results in a spread that increases linearly with time contrary to conventional model, which predicts a mixing zone length that increases with square root of time. Therefore, new model explains the field test results that indicate increasing dispersivity with distance. The model validations are in perfect agreement with experimental results, which include; Ganapathy et al.`s slug experiment on Antolini sandstone, Handy`s radioactive tracer experiment on Alhambra sandstone, and CT experiment conducted at BDM-OK/NIPER facilities on Tallant sandstone.

Ates, H.; Kasap, E. [Univ. of Tulsa, OK (United States)

1995-12-31T23:59:59.000Z

279

Alternative Fuels Data Center: Energy Task Force  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Energy Task Force to Energy Task Force to someone by E-mail Share Alternative Fuels Data Center: Energy Task Force on Facebook Tweet about Alternative Fuels Data Center: Energy Task Force on Twitter Bookmark Alternative Fuels Data Center: Energy Task Force on Google Bookmark Alternative Fuels Data Center: Energy Task Force on Delicious Rank Alternative Fuels Data Center: Energy Task Force on Digg Find More places to share Alternative Fuels Data Center: Energy Task Force on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type Energy Task Force The Governor's Task Force on Energy Policy is developing a state energy plan to facilitate energy efficiency and the use of alternative and renewable fuels in Tennessee. The energy plan will include a summary of

280

Complex Forces Affect China's Biodiversity  

E-Print Network [OSTI]

global efforts have been put into biodiversity conservation, but biodiversity loss continues rapidly in biodiversity conservation to the global level and help protect biodiversity in other developing countries Wiley & Sons, Ltd. #12;208 ConservationBiology COMPLEXITY OF INTERACTING FORCES AFFECTING BIODIVERSITY

Note: This page contains sample records for the topic "forcing tracers future" 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

Kollisionsdetektion fr Force-Feedback-  

E-Print Network [OSTI]

(high impact velocities or large contact areas) 3. Force-feedback requires a constant update rate.e., in case of no overlap - Complicated to compute penetration depth [Mendoza et al, 2006], [Zhang et al, 2007], ... § Voxels & Points (VPS): + Easy to compute approx. penetration depth - Large memory footprint - Aliasing

Zachmann, Gabriel

282

AIR FORCE SPECIAL WEAPONS CENTER  

Office of Legacy Management (LM)

HEADQUARTERS aII?y HEADQUARTERS aII?y 9 AIR FORCE SPECIAL WEAPONS CENTER 1 AIR FORCE SYSTEMS COMMAND . - KlRTlAND AIR FORCE BASE, NEW MEXICO - k FINAL REPORT O N AIR FORCE PARTICIPATION PROJECT RULISON .1 O c t o b e r 1969 P r e p a r e d by : CONT INENTAL TEST D I V I S ION DIRECTORATE OF NUCLEAR FIELD OPERATIONS This page intentionally left blank INDEX AIR FORCE PARTICIPATION I N PROJECT RULISON FINAL REPORT PARAGRAPH BASIC REPORT SUBJECT R e f e r e n c e s PAGE 2 G e n e r a l 1 3 P l a n n i n g 3 4 Command a n d C o n t r o l 5 O p e r a t i o n s , G r a n d ' J u n c t i o n M u n i c i p a l A i r p o r t . . ' A i r O p e r a t i o n s C e n t e r , He1 i c o p t e r P a d / ' 7.. - . M a t e r i e l : ' 8 M e d i c a l 1 9 R a d - S a f e C r a s h - R e s c u e S e c u r i t y 2 1 C o m m u n i c a t i o n s ~ d m i n i s t r a t ' i o n Summary ATTACHMENTS ATTACHMENT SUBJECI' 1 F r a g O r d e r 69-1 ( ~ r o j ' e c t RULISON) , AFSWC D

283

Nuclear Radius and Nuclear Forces  

Science Journals Connector (OSTI)

The difference between the radius of the nuclear matter distribution and the nuclear force radius, RN?1.4A1310-13 cm, for heavy nuclei (A>100) is interpreted as a consequence of the finite range of nuclear forces. Assuming that the nuclear matter distribution coincides with the charge distribution as determined at Stanford (RC=1.12A1310-13 cm is the distance at which the charge density falls to one half value) we sum up the nuclear interactions of an incident nucleon for various proposed internucleon potentials, V(r). We also evaluate contributions from the spin, charge, and matter polarizations induced in the nuclear distributions by the incident nucleon as a test of the convergence of these calculations. The aim here is to infer some features of nuclear forces which satisfy saturation requirements and at the same time give rise to an appreciable nuclear attraction for an incident nucleon at RN. Analyses of the scattering of neutrons and protons by heavy nuclei suggest a nuclear attraction ?14 Mev at a distance RN.These considerations are primarily sensitive to the long range behavior of the direct, central part of V(r). The key point which emerges from them is that the nuclear forces must contain long range (~ meson Compton wavelength) direct, central attractions which will be felt by an incident nucleon at RN before the shorter range repulsions (hard cores, many-body forces, or exchange interactions), which are responsible for saturation, become effective. Such interactions can be constructed phenomenologically, but are not found in recent meson-theoretically deduced potentials.

S. D. Drell

1955-10-01T23:59:59.000Z

284

U.S. Air Force Fact Sheet Air Force Reserve Officer Training Corps  

E-Print Network [OSTI]

for the Air Force. Personnel and Resources Air Force Reserve Officer Training Corps (ROTC) includes fourU.S. Air Force Fact Sheet Air Force Reserve Officer Training Corps Mission Develop Quality Leaders Reserve Officer Training Corps is the largest and oldest source of commissioned officers for the Air Force

Su, Xiao

285

Section 25: Future State Assumptions  

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

the Compliance Certification Application (CCA), Chapter 6.0, Section 6.2 and Appendices SCR and MASS (U.S. DOE 1996). Many of these future state assumptions were derived from the...

286

The Future of Geothermal Energy  

Broader source: Energy.gov [DOE]

The Future of Geothermal Energy report is an evaluation of geothermal energy as a major supplier of energy in the United States. An 18-member assessment panel with broad experience and expertise...

287

Algae: fuel of the future?  

Science Journals Connector (OSTI)

Algae: fuel of the future? ... Start-ups and oil giants are investing millions in the photosynthetic powers of algae. ... Start-ups and oil giants are investing millions in the photosynthetic powers of algae. ...

Amanda Leigh Mascarelli

2009-09-02T23:59:59.000Z

288

Seaborg Predicts Bright Atomic Future  

Science Journals Connector (OSTI)

Seaborg Predicts Bright Atomic Future ... To explore both the immediate and long-term ramifications of the cutbacks, C&EN talked to the Chairman of the Atomic Energy Commission, Dr. Glenn T. Seaborg . ...

1964-06-15T23:59:59.000Z

289

Future Hadron Physics at Fermilab  

E-Print Network [OSTI]

Today, hadron physics research occurs at Fermilab as parts of broader experimental programs. This is very likely to be the case in the future. Thus, much of this presentation focuses on our vision of that future - a future aimed at making Fermilab the host laboratory for the International Linear Collider (ILC). Given the uncertainties associated with the ILC - the level of needed R&D, the ILC costs, and the timing - Fermilab is also preparing for other program choices. I will describe these latter efforts, efforts focused on a Proton Driver to increase the numbers of protons available for experiments. As examples of the hadron physics which will be coming from Fermilab, I summarize three experiments: MIPP/E907 which is running currently, and MINER A and Drell-Yan/E906 which are scheduled for future running periods. Hadron physics coming from the Tevatron Collider program will be summarized by Arthur Maciel in another talk at Hadron05.

Jeffrey A. Appel

2005-09-23T23:59:59.000Z

290

AUTO ID FUTURE - FREQUENCY AGNOSTIC  

E-Print Network [OSTI]

Identification of information is one key to the development of intelligent decision systems of the future. Frequency agnostic automatic identification is only one step in the physical world to make physical objects identify ...

DATTA, SHOUMEN

291

Texas Industries of the Future  

E-Print Network [OSTI]

The purpose of the Texas Industries of the Future program is to facilitate the development, demonstration and adoption of advanced technologies and adoption of best practices that reduce industrial energy usage, emissions, and associated costs...

Ferland, K.

292

Prompt-Month Energy Futures  

Gasoline and Diesel Fuel Update (EIA)

Prompt-Month Energy Futures Prompt-Month Energy Futures Prices and trading activity shown are for prompt-month (see definition below) futures contracts for the energy commodities listed in the table below. Note that trading for prompt-month futures contracts ends on different dates at the end of the month for the various commodities; therefore, some commodity prices may reference delivery for the next month sooner than other commodity prices. Product Description Listed With Crude Oil ($/barrel) West Texas Intermediate (WTI) light sweet crude oil delivered to Cushing, Oklahoma More details | Contract specifications New York Mercantile Exchange (Nymex) Gasoline-RBOB ($/gallon) Reformulated gasoline blendstock for oxygenate blending (RBOB) gasoline delivered to New York Harbor More details | Contract specifications Nymex

293

The Future of Home Heating  

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

NG in PM 2.5 emissions B10 equal to NG in CO2e emissions High heating efficiency Lowest oil for oil replacement cost Ideal for high bio fraction future Best for existing oil...

294

The Wave of the Future  

E-Print Network [OSTI]

The Wave of the Future Story by Courtney Swyden THEWAVE OF THE FUTURE tx H2O | pg. 2 Plans use local involvement to enhance water quality Comprehensive watershed protection plans,outlining ways to preserve or restore water-sheds, are becoming a... popular approach for protecting Texas surface waters. The Texas Water Resources Institute (TWRI), Texas Agricultural Experiment Station and Texas Cooperative Extension are taking an active role in providing assessment, educational outreach, manage...

Swyden, Courtney

2006-01-01T23:59:59.000Z

295

Neural network approaches to tracer identification as related to PIV research  

SciTech Connect (OSTI)

Neural networks have become very powerful tools in many fields of interest. This thesis examines the application of neural networks to another rapidly growing field flow visualization. Flow visualization research is used to experimentally determine how fluids behave and to verify computational results obtained analytically. A form of flow visualization, particle image velocimetry (PIV). determines the flow movement by tracking neutrally buoyant particles suspended in the fluid. PIV research has begun to improve rapidly with the advent of digital imagers, which can quickly digitize an image into arrays of grey levels. These grey level arrays are analyzed to determine the location of the tracer particles. Once the particles positions have been determined across multiple image frames, it is possible to track their movements, and hence, the flow of the fluid. This thesis explores the potential of several different neural networks to identify the positions of the tracer particles. Among these networks are Backpropagation, Kohonen (counter-propagation), and Cellular. Each of these algorithms were employed in their basic form, and training and testing were performed on a synthetic grey level array. Modifications were then made to them in attempts to improve the results.

Seeley, C.H. Jr.

1992-12-01T23:59:59.000Z

296

Chapter 1 - The Study of Culture and Psychopathology: Fundamental Concepts and Historic Forces  

Science Journals Connector (OSTI)

This chapter provides an overview of the relationship between culture and psychopathology with special emphasis upon core concepts and historical forces within the study of culture and psychopathology. The chapter concludes with a discussion of future directions for inclusion of culture as essential to a full understanding of psychopathology.

Ann-Marie Yamada; Anthony J. Marsella

2013-01-01T23:59:59.000Z

297

Lorentz Force Electrical Impedance Tomography  

E-Print Network [OSTI]

This article describes a method called Lorentz Force Electrical Impedance Tomography. The electrical conductivity of biological tissues can be measured through their sonication in a magnetic field: the vibration of the tissues inside the field induces an electrical current by Lorentz force. This current, detected by electrodes placed around the sample, is proportional to the ultrasonic pressure, to the strength of the magnetic field and to the electrical conductivity gradient along the acoustic axis. By focusing at different places inside the sample, a map of the electrical conductivity gradient can be established. In this study experiments were conducted on a gelatin phantom and on a beef sample, successively placed in a 300 mT magnetic field and sonicated with an ultrasonic transducer focused at 21 cm emitting 500 kHz bursts. Although all interfaces are not visible, in this exploratory study a good correlation is observed between the electrical conductivity image and the ultrasonic image. This method offers...

Grasland-Mongrain, Pol; Chapelon, Jean-Yves; Lafon, Cyril

2014-01-01T23:59:59.000Z

298

Friction forces in cosmological models  

E-Print Network [OSTI]

We investigate the dynamics of test particles undergoing friction forces in a Friedmann-Robertson-Walker (FRW) spacetime. The interaction with the background fluid is modeled by introducing a Poynting-Robertson-like friction force in the equations of motion, leading to measurable (at least in principle) deviations of the particle trajectories from geodesic motion. The effect on the peculiar velocities of the particles is investigated for various equations of state of the background fluid and different standard cosmological models. The friction force is found to have major effects on particle motion in closed FRW universes, where it turns the time-asymptotic value (approaching the recollapse) of the peculiar particle velocity from ultra-relativistic (close to light speed) to a co-moving one, i.e., zero peculiar speed. On the other hand, for open or flat universes the effect of the friction is not so significant, because the time-asymptotic peculiar particle speed is largely non-relativistic also in the geodesi...

Bini, Donato; Gregoris, Daniele; Succi, Sauro

2014-01-01T23:59:59.000Z

299

Friction forces in cosmological models  

E-Print Network [OSTI]

We investigate the dynamics of test particles undergoing friction forces in a Friedmann-Robertson-Walker (FRW) spacetime. The interaction with the background fluid is modeled by introducing a Poynting-Robertson-like friction force in the equations of motion, leading to measurable (at least in principle) deviations of the particle trajectories from geodesic motion. The effect on the peculiar velocities of the particles is investigated for various equations of state of the background fluid and different standard cosmological models. The friction force is found to have major effects on particle motion in closed FRW universes, where it turns the time-asymptotic value (approaching the recollapse) of the peculiar particle velocity from ultra-relativistic (close to light speed) to a co-moving one, i.e., zero peculiar speed. On the other hand, for open or flat universes the effect of the friction is not so significant, because the time-asymptotic peculiar particle speed is largely non-relativistic also in the geodesic case.

Donato Bini; Andrea Geralico; Daniele Gregoris; Sauro Succi

2014-08-23T23:59:59.000Z

300

Robust Forced Response in South Asian Summer Monsoon in a Future Climate  

Science Journals Connector (OSTI)

A robust response of South Asian summer monsoon precipitation to increasing greenhouse gas concentration during the twenty-first century is identified in 23 models from phase 5 of the Coupled Model Intercomparison Project. The pattern of this ...

Abhishekh K. Srivastava; Timothy DelSole

2014-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Fort Future: Virtual Installation supports rapidly changing needs of armed forces in the field  

E-Print Network [OSTI]

and electric utility modeling and planning tools for the Virtual Instal- lation. For water utilities, Argonne uses the Environmental Protection Agency's EPANet software; for the electrical distribution network-252-6727 psydelko@anl.gov National Security Argonne National Laboratory is a U.S. Department of Energy laboratory

Kemner, Ken

302

The large contribution of projected HFC emissions to future climate forcing  

Science Journals Connector (OSTI)

...application, to the per capita con-sumption...virtually complete. Demand for refrigeration...households, persons per residence, GDP/capita, income distri-bution...as product and energy price. Middle...products implying a demand only for service...

Guus J. M. Velders; David W. Fahey; John S. Daniel; Mack McFarland; Stephen O. Andersen

2009-01-01T23:59:59.000Z

303

The large contribution of projected HFC emissions to future climate forcing  

Science Journals Connector (OSTI)

...Industrial non-energy, non-CO2 greenhouse...A Study of Household Income and Appliance...Environmental Energy Technologies...from China. Japan Air Conditioning...Energy Economics Japan, Energy Conservation...variations in total household energy requirements...

Guus J. M. Velders; David W. Fahey; John S. Daniel; Mack McFarland; Stephen O. Andersen

2009-01-01T23:59:59.000Z

304

Physics Needs for Future Accelerators  

E-Print Network [OSTI]

Contents: 1. Prologomena to any meta future physics 1.1 Physics needs for building future accelerators 1.2 Physics needs for funding future accelerators 2. Physics questions for future accelerators 2.1 Crimes and misapprehensions 2.1.1 Organized religion 2.1.2 Feudalism 2.1.3 Trotsky was right 2.2 The Standard Model as an effective field theory 2.3 What is the scale of new physics? 2.4 What could be out there? 2.5 Model-independent conclusions 3. Future accelerators 3.1 What is the physics driving the LHC? 3.2 What is the physics driving the LC? 3.2.1 Higgs physics is golden 3.2.2 LHC won't be sufficient to unravel the new physics as the TeV scale 3.2.3 LC precision measurements can pin down new physics scales 3.3 Why a Neutrino Factory? 3.4 Pushing the energy frontier

Joseph D. Lykken

2000-01-30T23:59:59.000Z

305

Registration, Force Protection Equipment Demonstration - May 2009 |  

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

Registration, Force Protection Equipment Demonstration - May 2009 Registration, Force Protection Equipment Demonstration - May 2009 Registration, Force Protection Equipment Demonstration - May 2009 May 2009 Demonstrating commercially availale physical security/force protection soultions around the world The bombing of Khobar Towers in Saudi Arabia on 25 June 1996 revealed the need for continal vigilance and protection againist terrorist forces intent on harming US personnel and interests. The Chairman if the Joint Chiefs of Staff directed the Services to investigate COTS equipments solutions for physical security/force protection needs. The Office of the Under Secretary of Defense for Acquistion, Technology, and Logistics (OUSD {at&l}) tasked the Office of the US Army Product Manager, force Protection Systems (PM-FPS), to coordiante and facilitate a Force Protection Equipment

306

Development of a light force accelerometer  

E-Print Network [OSTI]

In this work, the feasibility of a light force accelerometer was experimentally demonstrated. The light force accelerometer is an optical inertial sensor which uses focused laser light to levitate and trap glass microspheres ...

Butts, David LaGrange

2008-01-01T23:59:59.000Z

307

Reduction-in-Force | Department of Energy  

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

Reduction-in-Force Reduction in force (RIF) is a set of regulations and procedures that are used to determine whether an employee keeps his or her present position, or...

308

A Dynamic Defense Force for Japan  

E-Print Network [OSTI]

A Dynamic Defense Force for Japan Sugio TAKAHASHI SUMMARY AGuidelines released by Japan in 2010, the most important isconcept, which will enable the Japan Self-Defense Forces to

TAKAHASHI, Sugio

2012-01-01T23:59:59.000Z

309

Laying the Foundation for a More Energy Efficient Future: Reducing Climate Change through Green Building  

E-Print Network [OSTI]

Building Andrew Turco Energy for Sustainable Development Task Force, Spring 2006 Professor Mauzerall May 3Laying the Foundation for a More Energy Efficient Future: Reducing Climate Change through Green, and Steven Pacala and Robert Socolow have developed a stabilization wedges concept to addresses how global

Mauzerall, Denise

310

Energy Options for the Future  

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

Options Options for the Future * John Sheffield, 1 Stephen Obenschain, 2,12 David Conover, 3 Rita Bajura, 4 David Greene, 5 Marilyn Brown, 6 Eldon Boes, 7 Kathyrn McCarthy, 8 David Christian, 9 Stephen Dean, 10 Gerald Kulcinski, 11 and P.L. Denholm 11 This paper summarizes the presentations and discussion at the Energy Options for the Future meeting held at the Naval Research Laboratory in March of 2004. The presentations covered the present status and future potential for coal, oil, natural gas, nuclear, wind, solar, geo- thermal, and biomass energy sources and the effect of measures for energy conservation. The longevity of current major energy sources, means for resolving or mitigating environmental issues, and the role to be played by yet to be deployed sources, like fusion, were major topics of presentation and discussion. KEY WORDS: Energy; fuels; nuclear; fusion; efficiency; renewables.

311

Water for future Mars astronauts?  

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

Water for future Mars astronauts? Water for future Mars astronauts? Water for future Mars astronauts? Within its first three months on Mars, NASA's Curiosity Rover saw a surprising diversity of soils and sediments along a half-kilometer route that tell a complex story about the gradual desiccation of the Red Planet. September 26, 2013 This image shows two areas on Mars in a location named Rocknest that were scooped out by the Curiosity Rover last year. Researchers took samples of the areas to determine whether they were wetter underneath or whether they dried out after scooping. Researchers found that soil moisture was consistent at the surface and underneath. Nevertheless, there is a small amount of water in the soil that astronauts might be able to use to sustain themselves. These finding and others are outlined in a series of papers appearing today in the Journal "Science." (Image credit: NASA)

312

Hydrogen Future Act of 1996  

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

4-271-OCT. 9, 1996 4-271-OCT. 9, 1996 HYDROGEN FUTURE ACT OF 1996 110 STAT. 3304 PUBLIC LAW 104-271-OCT. 9, 1996 Oct. 9, 1996 [H.R. 4138] Hydrogen Future Act of 1996. 42 USC 12401 note. 42 USC 7238 note. Public Law 104-271 104th Congress An Act To authorize the hydrogen research, development, and demonstration programs of the Department of Energy, and for other purposes. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT TITLE. This Act may be cited as the ''Hydrogen Future Act of 1996''. SEC. 2. DEFINITIONS. For purposes of titles II and III- (1) the term ''Department'' means the Department of Energy; and (2) the term ''Secretary'' means the Secretary of Energy. TITLE I-HYDROGEN SEC. 101. PURPOSES AND DEFINITIONS.

313

11 - Future Automotive Electronic Systems  

Science Journals Connector (OSTI)

Publisher Summary This chapter discusses the future of the automative electronic systems. Future applications of telematics are described. One of the interesting potential future developments in the application of electronics to automobiles is navigation. The concepts discussed in the chapter depend largely on their technical feasibility and marketability. The fundamental control strategy for fuel metering has not changed, although the technological changes have improved the performance and reliability of the electronically controlled engine. Some of the technical improvements described in the chapter include knock control, linear solenoid idle speed control, sequential fuel injection, distributorless ignition, self-diagnosis for fail-safe operation, back-up microprocessor (MPU), and hybrid vehicles. New mechanisms and electromechanical actuators have been developed to improve volumetric efficiency via induction systems, variable valve timing, variable nozzle turbochargers, and throttle actuators.

2003-01-01T23:59:59.000Z

314

Nuclear Radiological Threat Task Force Established | National...  

National Nuclear Security Administration (NNSA)

Radiological Threat Task Force Established | National Nuclear Security Administration People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy...

315

GreenFuture Renewables | Open Energy Information  

Open Energy Info (EERE)

GreenFuture Renewables Jump to: navigation, search Name: GreenFuture Renewables Place: Porto Alegre, Rio Grande do Sul, Brazil Zip: 90460000 Sector: Renewable Energy, Wind energy...

316

Three-body forces and the trinucleons  

SciTech Connect (OSTI)

Three-body forces are discussed in the context of classical, atomic, solid-state and nuclear physics. The basic theoretical ingredients used in the construction of such forces are reviewed. Experimental evidence for three-nucleon forces and an overview of the three-nucleon bound states are presented. 53 refs., 9 figs.

Friar, J.L.

1987-01-01T23:59:59.000Z

317

Theory of trapping forces in optical tweezers  

Science Journals Connector (OSTI)

...been used to measure forces in the piconewton range...investigations in some fundamental fields of cell biology...result for the transverse force as given by (3.9...Stegun, I. 1972 Handbook of mathematical functions...Dover. Ashkin, A. 1992 Forces of a single beam gradient...

2003-01-01T23:59:59.000Z

318

FUTURE:  

Science Journals Connector (OSTI)

......systems alive. Protecting power and information The smart grid is the bidirectional supply chain that connects power...meters to compromise control and customer data. The smart grid deployments are happening at a rapid rate, and given......

Member Content

2011-01-01T23:59:59.000Z

319

Quarkonium Binding and Entropic Force  

E-Print Network [OSTI]

A Q-Qbar bound state represents a balance between repulsive kinetic and attractive potential energy. In a hot quark-gluon plasma, the interaction potential experiences medium effects. Color screening modifies the attractive binding force between the quarks, while the increase of entropy with Q-Qbar separation gives rise to a growing repulsion. We study the role of these phenomena for in-medium Q-Qbar binding and dissociation. It is found that the relevant potential for Q-Qbar binding is the free energy F; with increasing Q-Qbar separation, further binding through the internal energy U is compensated by repulsive entropic effects.

Satz, Helmut

2015-01-01T23:59:59.000Z

320

CO2 tracer gas concentration decay method for measuring air change rate  

Science Journals Connector (OSTI)

Abstract The measure of air change rate (ACR) in building is a difficult and usually expensive task. The tracer gas method is the reference technique but its implementation is difficult and the interpretation of results is not straightforward. In the present work, the concentration decay method by multiple CO2 transmitters is experimentally validated in the case of cross-ventilation. It is observed that in-situ CO2 transmitters lead to ACR values in good agreement with reference measurements obtained from mechanically controlled values. Whereas multiple transmitters in different sampling positions show the imperfect mixing, a sensor located at the outlet or an averaged value of all sensors can provide an accurate measure of the ACR. Moreover, the spatial variation of CO2 concentration can be used to assess the ventilation efficiency in the test chamber. Different measures and calculation methods are discussed, and the uncertainty analysis of each method is carried out.

Shuqing Cui; Michal Cohen; Pascal Stabat; Dominique Marchio

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Mixing properties in the advection of passive tracers via recurrences and extreme value theory  

E-Print Network [OSTI]

In this paper we characterize the mixing properties in the advection of passive tracers by exploiting the extreme value theory for dynamical systems. With respect to classical techniques directly related to the Poincar\\'e recurrences analysis, our method provides reliable estimations of the characteristic mixing times and distinguishes between barriers and unstable fixed points. The method is based on a check of convergence for extreme value laws on finite datasets. We define the mixing times in terms of the shortest time intervals such that extremes converge to the asymptotic (known) parameters of the Generalized Extreme Value distribution. Our technique is suitable for applications in the analysis of other systems where mixing time scales need to be determined and limited datasets are available.

Davide Faranda; Xavier Leoncini; Sandro Vaienti

2014-02-16T23:59:59.000Z

322

Using conversions of chemically reacting tracers for numerical determination of temperature profiles in flowing systems and temperature histories in batch systems  

SciTech Connect (OSTI)

This report presents the mathematical bases for measuring internal temperatures within batch and flowing systems using chemically reacting tracers. This approach can obtain temperature profiles of plug-flow systems and temperature histories within batch systems. The differential equations for reactant conversion can be converted into Fredholm integral equations of the first kind. The experimental variable is the tracer-reaction activation energy. When more than one tracer is used, the reactions must have different activation energies to gain information. In systems with temperature extrema, multiple solutions for the temperature profiles or histories can exist, When a single parameter in the temperature distribution is needed, a single-tracer test may furnish this information. For multi-reaction tracer tests, three Fredholm equations are developed. Effects of tracer-reaction activation energy, number of tracers used, and error in the data are evaluated. The methods can determine temperature histories and profiles for many existing systems, and can be a basis for analysis of the more complicated dispersed-flow systems. An alternative to using the Fredholm-equation approach is the use of an assumed temperature- distribution function and incorporation of this function into the basic integral equation describing tracer behavior. The function contains adjustable parameters which are optimized to give the temperature distribution. The iterative Fredholm equation method is tested to see what is required to discriminate between two models of the temperature behavior of Hot Dry Rock (HDR) geothermal reservoirs. Experimentally, ester and amide hydrolyses are valid HDR tracer reactions for measuring temperatures in the range 75-100{degrees}C. Hydrolyses of bromobenzene derivatives are valid HDR tracer reactions for measuring temperatures in the range 150-275{degrees}C.

Brown, L.F.; Chemburkar, R.M.; Robinson, B.A.; Travis, B.J.

1996-04-01T23:59:59.000Z

323

Comparison of the optoacoustic and Hg tracer methods for the study of energy-transfer processes in gas mixtures  

SciTech Connect (OSTI)

Rates of energy transfer from vibrationally excited SF/sub 6/ and pentafluorobenzene to argon in the gas phase have been studied by using the Hg tracer technique and time-resolved optoacoustics. These two techniques which rely on fundamentally different physical principles were found to give equivalent results. The implications for the study of energy-transfer processes in gas mixtures are discussed.

Wallington, T.J.; Braun, W.; Beck, K.M.; Gordon, R.J.

1988-06-30T23:59:59.000Z

324

{sup 41}Ca as a tracer for calcium uptake and deposition in heart tissue during ischemia and reperfusion  

SciTech Connect (OSTI)

We have developed techniques and are commencing experiments using enriched {sup 41}Ca as a tracer in isolated rabbit heart preparations. The aims of the study are to measure calcium uptake and deposition in response to cardiac ischemia and reperfusion, and to investigate events and mechanism leading to irreversible myocyte injury.

Southon, J.R. [Lawrence Livermore National Lab., CA (United States); Bishop, M.S.; Kost, G.J. [California Univ., Davis, CA (United States). Dept. of Medical Pathology and Biomedical Engineering

1993-09-17T23:59:59.000Z

325

Astronomy: Bright Future for Infrared  

Science Journals Connector (OSTI)

... ALTHOUGH the prediction of what is likely to happen in astronomy in the future is a hazardous undertaking just now, it seems increasingly obvious in ... is a hazardous undertaking just now, it seems increasingly obvious in astronomical circles that infrared astronomy is going to be an important field of investigation during the next few years. ...

Our Astronomy Correspondent

1968-09-21T23:59:59.000Z

326

The future for radio astronomy  

Science Journals Connector (OSTI)

......research-article Features The future for radio astronomy Rene P Breton Tom Hassall Rene P Breton and Tom Hassall, School of Physics and Astronomy, University of Southampton, UK; r...Tom Hassall argue that, while radio astronomy has always involved transient phenomena......

Rene P Breton; Tom Hassall

2013-12-01T23:59:59.000Z

327

Envision your future in engineering  

E-Print Network [OSTI]

because of my grandpa's history in engineering. He was a geological engineer and he encouraged me to give#12;e Envision your future in engineering © 2011 Montana State University #12;Table of Contents and personal success of minority and women students in the College of Engineering at Montana State University

Dyer, Bill

328

Life: past, present and future  

Science Journals Connector (OSTI)

...have the upper hand in terms of energy harvesting...new life. We should enter the search with an open mind, knowing...non-earth environments. In terms of both past and future...over which scales, to search for them. To summarize...

1999-01-01T23:59:59.000Z

329

The future of oil supply  

Science Journals Connector (OSTI)

...Department of Energy [64] argued...options such as electric vehicles and...prospects of electric vehicles (EVs...cells, and the energy use, driving...diverse urban planning and fuel taxation...Laherrere, J. 2000 Distribution of field sizes...future of oil. Energy Explor. Exploit...

2014-01-01T23:59:59.000Z

330

Future hadron physics at Fermilab  

SciTech Connect (OSTI)

Today, hadron physics research occurs at Fermilab as parts of broader experimental programs. This is very likely to be the case in the future. Thus, much of this presentation focuses on our vision of that future--a future aimed at making Fermilab the host laboratory for the International Linear Collider (ILC). Given the uncertainties associated with the ILC--the level of needed R&D, the ILC costs, and the timing--Fermilab is also preparing for other program choices. I will describe these latter efforts, efforts focused on a Proton Driver to increase the numbers of protons available for experiments. As examples of the hadron physics which will be coming from Fermilab, I summarize three experiments: MIPP/E907 which is running currently, and MINERvA and Drell-Yan/E906 which are scheduled for future running periods. Hadron physics coming from the Tevatron Collider program will be summarized by Arthur Maciel in another talk at Hadron05.

Appel, Jeffrey A.; /Fermilab

2005-09-01T23:59:59.000Z

331

Future prospects for geothermal energy  

Science Journals Connector (OSTI)

For pt.II see ibid., vol.10, no.6, p.244 (1979). Attempts to assess the very important role that may well be played by earth heat in the world energy strategy of the future. Rock fracturing methods are discussed and applications considered

H.C.H. Armstead

1980-01-01T23:59:59.000Z

332

Future Prospects of Synthetic Fuels  

E-Print Network [OSTI]

It is important for the future of this nation to reach the goal of demonstrated definition and quantification of the parameters which influence the ability to use this country's vast resources of coal and oil shale for production of synthetic fuels...

Fryback, M. G.

1982-01-01T23:59:59.000Z

333

Options for Kentucky's Energy Future  

SciTech Connect (OSTI)

Three important imperatives are being pursued by the Commonwealth of Kentucky: ? Developing a viable economic future for the highly trained and experienced workforce and for the Paducah area that today supports, and is supported by, the operations of the US Department of Energys (DOEs) Paducah Gaseous Diffusion Plant (PGDP). Currently, the PGDP is scheduled to be taken out of service in May, 2013. ? Restructuring the economic future for Kentuckys most abundant indigenous resource and an important industry the extraction and utilization of coal. The future of coal is being challenged by evolving and increasing requirements for its extraction and use, primarily from the perspective of environmental restrictions. Further, it is important that the economic value derived from this important resource for the Commonwealth, its people and its economy is commensurate with the risks involved. Over 70% of the extracted coal is exported from the Commonwealth and hence not used to directly expand the Commonwealths economy beyond the severance taxes on coal production. ? Ensuring a viable energy future for Kentucky to guarantee a continued reliable and affordable source of energy for its industries and people. Today, over 90% of Kentuckys electricity is generated by burning coal with a delivered electric power price that is among the lowest in the United States. Anticipated increased environmental requirements necessitate looking at alternative forms of energy production, and in particular electricity generation.

Larry Demick

2012-11-01T23:59:59.000Z

334

RADIATION ONCOLOGY TARGET YOUR FUTURE  

E-Print Network [OSTI]

. · Radiation therapist - a health professional who designs, calculates (plans) and provides the radiation dose and monitors the delivery of radiation therapy, taking into account the protection and safety of patientsRADIATION ONCOLOGY TARGET YOUR FUTURE #12;A Career in Radiation Oncology YOUR CHOICE SAVE LIVES

Tobar, Michael

335

Air Force Enhanced Use Lease  

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

1 1 Air Force Enhanced Use Lease Mr. Brian Brown 16 Oct. 12 I n t e g r i t y - S e r v i c e - E x c e l l e n c e 2 Agenda  Brian Brown  Enhanced Use Lease (EUL) Overview  Energy EULs  EUL Goals  David Swanson  Energy EUL Market Drivers  Current EUL Projects  Partnering with the Air Force  Contact Information I n t e g r i t y - S e r v i c e - E x c e l l e n c e 3 Overview  Authority 10 USC 2667  An EUL is a lease  By the government  Of "non-excess" property  Under the control of the government  To a public or private sector lessee  In exchange for fair market value rental payments in cash and/or in kind consideration I n t e g r i t y - S e r v i c e - E x c e l l e n c e

336

Lorentz-Force Hydrophone Characterization  

E-Print Network [OSTI]

A Lorentz-force hydrophone consists of a thin wire placed inside a magnetic field. When under the influence of an ultrasound pulse, the wire vibrates and an electrical signal is induced by the Lorentz force that is proportional to the pulse amplitude. In this study a compact prototype of such a hydrophone is introduced and characterized, and the hydrodynamic model previously developed is refined. It is shown that the wire tension has a negligible effect on the measurement of pressure. The frequency response of the hydrophone reaches 1 MHz for wires with a diameter ranging between 70 and 400 \\micro m. The hydrophone exhibits a directional response such that the signal amplitude differs by less than 3dB as the angle of the incident ultrasound pulse varies from -20$^o$ and +20$^o$. The linearity of the measured signal is confirmed across the 50 kPa to 10 MPa pressure range, and an excellent resistance to cavitation is observed. This hydrophone is of interest for high pressure ultrasound measurements including Hi...

Grasland-Mongrain, Pol; Gilles, Bruno; Poizat, Adrien; Chapelon, Jean-Yves; Lafon, Cyril

2014-01-01T23:59:59.000Z

337

Water Requirements for Future Energy production in California  

E-Print Network [OSTI]

FOR FUTURE ENERGY PRODUCTION STATE'S PERSPECTIVE. CALIFORNIAREQUIREMENTS FOR FUTURE ENERGY PRODUCTION IN CALIFORNIAREQUIREMENTS POR FUTURE ENERGY PRODUCTION IN CALIFORNIA

Sathaye, Jayant A.; Ritschard, R.L.

1977-01-01T23:59:59.000Z

338

Water Requirements for Future Energy production in California  

E-Print Network [OSTI]

FOR FUTURE ENERGY PRODUCTION STATE'S PERSPECTIVE. CALIFORNIAREQUIREMENTS FOR FUTURE ENERGY PRODUCTION IN CALIFORNIAREQUIREMENTS POR FUTURE ENERGY PRODUCTION IN CALIFORNIA

Sathaye, J.A.

2011-01-01T23:59:59.000Z

339

Army Energy Initiatives Task Force  

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

UNCLASSIFIED UNCLASSIFIED Army Energy Initiatives Task Force Kathy Ahsing Director, Planning and Development UNCLASSIFIED 2 Perfect Storm UNCLASSIFIED 3 U.S. Army Energy Consumption, 2010 23% 77% 42% 58%  Facilities  Vehicles & Equipment (Tactical and Non-tactical) Sources: Energy Information Agency, 2010 Annual Energy Review; Agency Annual Energy Management Data Reports submitted to DOE's Federal Energy Management Program (Preliminary FY 2010) 32% 68% DoD 80% Army 21% Federal Gov 1% Federal Government United States Department of Defense U.S. = 98,079 Trillion Btu DoD = 889 Trillion Btu Fed Gov = 1,108 Trillion Btu U.S. Army = 189 Trillion Btu FY10 Highlights - $2.5+B Operational Energy Costs - $1.2 B Facility Energy Costs

340

Dark Forces At The Tevatron  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

A simple explanation of the W + dijet excess recently reported by the CDF collaboration involves the introduction of a new gauge boson with sizable couplings to quarks, but with no or highly suppressed couplings to leptons. Anomaly-free theories which include such a leptophobic gauge boson must also include additional particle content, which may include a stable and otherwise viable candidate for dark matter. Based on the couplings and mass of the Z` required to generate the CDF excess, we predict such a dark matter candidate to possess an elastic scattering cross section with nucleons on the order of ? ~ 10-40 cm2, providing a natural explanation for the signals reported by the CoGeNT and DAMA/LIBRA collaborations. In this light, CDF may be observing the gauge boson responsible for the force which mediates the interactions between the dark and visible matter of our universe.

Buckley, Matt [Fermilab; Fileviez Perez, Pavel [Wisconsin U., Madison; Hooper, Dan [Fermilab; Chicago U., Astron. Astrophys. Ctr.; Neil, Ethan [Fermilab

2011-08-19T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Status and Future of TRANSCOM  

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

Steve Casey Steve Casey U.S. Dept. of Energy Carlsbad Field Office  Current Program status g  Upcoming Changes  Glimpse at future options  DOE Commitments 2 6/3/2010 2  Current Program status g * Computer Based Training * User Support Site * Program Support * Program Accomplishments U i Ch  Upcoming Changes  Glimpse at future options  DOE Commitments 3  1 st release - December 2009 9  Covers general user training  Allows organizations access to training without waiting for a traditional class  Computer security module to be added Autumn 2010 Autumn 2010  Shipper/Scheduler training - being considered 4 6/3/2010 3  Completely overhauled in p y 2009  Features are user friendly  Layout more intuitive

342

Brookhaven Physics: Into the Future  

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

Physics: Into the Future Physics: Into the Future To remain at the frontier of science, Brookhaven is continually evaluating its research programs and planning new or revised investigations in areas that the U.S. Department of Energy identifies as national science priorities and that make use of Brookhaven scientists' interests and strengths. STAR detector (L) and PHENIX detector After discovering quark-gluon plasma, physicists will proceed to measure details of its many intriguing characteristics and properties, and continue to investigate many other aspects of heavy ion physics and spin physics. To undertake these tasks, Brookhaven is planning to upgrade RHIC to RHIC-II by increasing the facility's luminosity, or collision rate, by a factor of ten, thereby increasing the rate of plasma production and the ability to

343

Natural Gas Futures Prices (NYMEX)  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

Nov-14 View History Spot Price Henry Hub 4.59 4.05 3.91 3.92 3.78 4.12 1997-2014 NGPL Composite 10.17 9.94 9.69 9.86 8.75 2009-2014 Futures Prices Contract 1 4.59 4.02 3.90 3.92...

344

Transplanckian collisions at future accelerators  

E-Print Network [OSTI]

Scattering at transplanckian energies offers model independent tests of TeV scale gravity. Black-hole production is one spectacular signal, though a full calculation of the cross section is not yet available. Another signal is given by gravitational elastic scattering, which is maybe less spectacular but which can be nicely computed in the forward region using the eikonal approximation. In this talk I discuss the distinctive signatures of eikonalized scattering at future accelerators.

Riccardo Rattazzi

2002-05-23T23:59:59.000Z

345

The future of intellectual property  

Science Journals Connector (OSTI)

This paper uses two recent works as a springboard for discussing the proper contours of intellectual property protection. Professor Lessig devotes much of The Future of Ideas to demonstrating how the expanding scope of intellectual property protection ... Keywords: Copyright Term Extension Act (CTEA), Digital Millennium Copyright Act (DMCA), Internet, Locke, Napster, authorship, business method patent, copyright, enclosure, hyperlink, intellectual commons, intellectual property rights, labor-desert theory, natural law, open source code, patents, public domain, utilitarianism

Richard A. Spinello

2003-06-01T23:59:59.000Z

346

DESIGN AND CONSTRUCTION OF A FORCE-REFLECTING TELEOPERATION SYSTEM  

SciTech Connect (OSTI)

For certain applications, such as space servicing, undersea operations, and hazardous material handling tasks in nuclear reactors, the environments can be uncertain, complex, and hazardous. Lives may be in danger if humans were to work under these conditions. As a result, a man-machine system--a teleoperator system--has been developed to work in these types of environments. In a typical teleoperator system, the actual system operates at a remote site; the operator located away from this system usually receives visual information from a video image and/or graphical animation on the computer screen. Additional feedback, such as aural and force information, can significantly enhance performance of the system. Force reflection is a type of feedback in which forces experienced by the remote manipulator are fed back to the manual controller. Various control methods have been proposed for implementation on a teleoperator system. In order to examine different control schemes, a one Degree-Of-Freedom (DOF) Force-Reflecting Manual Controller (FRMC) is constructed and integrated into a PC. The system parameters are identified and constructed as a mathematical model. The Proportional-Integral-Derivative (PID) and fuzzy logic controllers are developed and tested experimentally. Numerical simulation results obtained from the mathematical model are compared with those of experimental data for both types of controllers. In addition, the concept of a telesensation system is introduced. A telesensation system is an advanced teleoperator system that attempts to provide the operator with sensory feedback. In this context, a telesensation system integrates the use of a Virtual Reality (VR) unit, FRMC, and Graphical User Interface (GUI). The VR unit is used to provide the operator with a 3-D visual effect. Various commercial VR units are reviewed and features compared for use in a telesensation system. As for the FRMC, the conceptual design of a 3-DOF FRMC is developed in an effort to make the system portable, compact, and lightweight. A variety of design alternatives are presented and evaluated. Finally, a GUI software package is developed to interface with several teleoperation unit components. These components include an industrial robot, electric motor, encoder, force/torque sensor, and CCD camera. The software includes features such as position scaling, force scaling, and rereferencing and is intended to provide a sound basis for the development of a multi-DOF FRMC system in the future.

M.A. Ebadian, Ph.D.

1999-01-01T23:59:59.000Z

347

Using CO2 Lidar for Standoff Detection of a Perfluorocarbon Tracer in Air  

SciTech Connect (OSTI)

The Tag, Track and Location System Program (TTL) is investigating the use of PFTs as tracers for tagging and tracking items of interest or fallen soldiers. In order for the tagging and tracking to be valuable there must be a location system that can detect the PFTs. This report details the development of an infrared lidar platform for standoff detection of PFTs released into the air from a tagged object or person. Furthering work performed using a table top lidar system in an indoor environment; a mobile mini lidar platform was assembled using an existing Raman lidar platform, a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was then successfully demonstrated at an outdoor test. The lidar system was able to detect PFTs released into a vehicle from a distance of 100 meters. In its final, fully optimized configuration the lidar was capable of repeatedly detecting PFTs in the air released from tagged vehicles. Responses were immediate and clear. This report details the results of a proof-of-concept demonstration for standoff detection of a perfluorocarbon tracer (PFT) using infrared lidar. The project is part of the Tag, Track and Location System Program and was performed under a contract with Tracer Detection Technology Corp. with funding from the Office of Naval Research. A lidar capable of detecting PFT releases at distance was assembled by modifying an existing Raman lidar platform by incorporating a grating tunable CO{sub 2} IR laser, Judson HgCdTe detector and miscellaneous folding optics and electronics. The lidar achieved {approx}200 ppb-m sensitivity in laboratory and indoor testing and was successfully demonstrated at an outdoor test. The demonstration test (scripted by the sponsor) consisted of three parked cars, two of which were tagged with the PFT. The cars were located 70 (closest) to 100 meters (farthest) from the lidar (the lidar beam path was limited by site constraints and was {approx}100 meters). When one door of each of the cars was opened (sequentially), the lidar was clearly able to determine which vehicles had been tagged and which one was not. The lidar is probably capable of greater than 0.5 kilometer standoff distances based on the extreme amount of signal return achieved (so much that the system had to be de-tuned). The BNL lidar system, while optimized to the extent possible with available parts and budget, was not as sensitive as it could be. Steps to improve the lidar are detailed in this report and include using a better laser system (for more stable power output), dual wavelengths (to improve the sensitivity and allow common mode noise reduction and to allow the use of the lidar in a scanning configuration), heterodyning (for range resolved PFT detection) and an off-axis optical configuration (for improved near field sensitivity).

Heiser,J.H.; Smith, S.; Sedlacek, A.

2008-02-06T23:59:59.000Z

348

Frictional forces in helical buckling of tubing  

SciTech Connect (OSTI)

Previous analyses of helical buckling of tubing have not considered frictional forces. This paper describes the modifications to helical buckling theory necessary to include friction. The first need is a relationship between the buckling force and the casing to tubing contact force. This contact force is determined through use of the principle of virtual work. The next need is the relationship between the friction forces, the buckling force, and the geometry of the tubing helix. Differential equations are derived and solved for two cases of interest: buckling during the landing of the tubing and thermal and differential pressure loading subsequent to landing. Several example problems are examined to evaluate the relative importance of friction.

Mitchell, R.F.

1984-09-01T23:59:59.000Z

349

Casimir force between integrable and chaotic pistons  

E-Print Network [OSTI]

We have computed numerically the Casimir force between two identical pistons inside a very long cylinder, considering different shapes for the pistons. The pistons can be considered as quantum billiards, whose spectrum determines the vacuum force. The smooth part of the spectrum fixes the force at short distances, and depends only on geometric quantities like the area or perimeter of the piston. However, correcting terms to the force, coming from the oscillating part of the spectrum which is related to the classical dynamics of the billiard, are qualitatively different for classically integrable or chaotic systems. We have performed a detailed numerical analysis of the corresponding Casimir force for pistons with regular and chaotic classical dynamics. For a family of stadium billiards, we have found that the correcting part of the Casimir force presents a sudden change in the transition from regular to chaotic geometries.

Ezequiel Alvarez; Francisco Diego Mazzitelli; Alejandro G. Monastra; Diego A. Wisniacki

2010-07-27T23:59:59.000Z

350

The force exerted by a fireball  

SciTech Connect (OSTI)

The force exerted by a fireball was deduced both from the change of the equilibrium position of a pendulum and from the change in the pendulum oscillation period. That measured force was found to be several times larger than the force exerted by the ions accelerated across the double layer that is assumed to surround the fireball. The force enhancement that is expected by ion-neutral collisions in the fireball is evaluated to be too small to explain the measured enhanced force. Gas pressure increase, due to gas heating through electron-neutral collisions, as recently suggested [Stenzel et al., J. Appl. Phys. 109, 113305 (2011)], is examined as the source for the force enhancement.

Makrinich, G.; Fruchtman, A. [H.I.T. - Holon Institute of Technology, 52 Golomb St., Holon 58102 (Israel)] [H.I.T. - Holon Institute of Technology, 52 Golomb St., Holon 58102 (Israel)

2014-02-15T23:59:59.000Z

351

Quantitative determination of collateral anterior olfactory nucleus projections using a fluorescent tracer with an algebraic solution to the problem of double retrograde labeling  

Science Journals Connector (OSTI)

The bilateral projections of the rat anterior olfactory nucleus (AON) were evaluated using retrograde fluorescent tracers. Competitive effects of these tracers led to severe underestimation of bilaterally projecting neurons, when double-labeled cells were counted. The underestimate was corrected using a numerical approach, which is of general utility for problems in double labeling and requires only a single tracer. With this method we estimated that approximately 63% of AON neurons project bilaterally to the olfactory bulbs, except for the external part which projects exclusively to the contralateral olfactory bulb. No other AON neurons project only to the contralateral bulb.

George F. Alheid; Jrn Carlsen; Jose de Olmos; Lennart Heimer

1984-01-01T23:59:59.000Z

352

Superconducting Magnet Technology for Future Hadron Colliders  

SciTech Connect (OSTI)

The application of superconducting magnets to large-scale particle accelerators was successfully demonstrated with the completion of the Tevatron at Fermilab in 1983. This machine, utilizing dipole magnets operating at 4.5 T, has been operating successfully for the past 12 years. This success was followed a few years later by HERA, an electron-proton collider that uses superconducting quadrupoles and dipoles of a design similar to those in the Tevatron. The next major project was the ill-fated SSC, which was cancelled in 1993. However, the SSC R&D effort did succeed in demonstrating the reliable operation of dipole magnets up to 6.6 T. The LHC, now under construction, pushes the ductile superconductor, NbTi, to its limit in dipoles designed to operate at fields of 8.6 T at 1.8 K. Several recent studies have addressed the issues involved in taking the next step beyond the LHC. The Division of Particles and Fields Workshop on Future Hadron Facilities in the U.S., held at Indiana U. in 1994, examined two possible facilities--a 2-TeV on 2-TeV collider and a 30-Tev on 30-Tev collider. The participants arrived at the following conclusions with regard to superconducting magnets: (1) Superconducting magnets are the enabling technology for high energy colliders. As such, the highest priority for the future of hadron facilities in the U.S. is the reassembly of a U.S. superconducting magnet R&D program. (2) emphasis on conductor development and new magnet designs; and (3) goals of such a program might be (a) the development of a 9-10 Tesla magnet based on NbTi technology; (b) the development of high quality quadrupoles with gradients in the range 250-300 T/m; and (c) initiation of R&D activities aimed at moving beyond the existing technology as appears to be required for the development of a magnet operating at 12-15 Tesla. In order to reach fields above 10 T, magnet designers must turn to new materials with higher critical fields than that of NbTi. Several candidate conductors exist; unfortunately, all of these new materials are brittle, and thus pose new challenges to the magnet designers. At the same time that the forces on the magnet windings are increasing due to the higher Lorentz force associated with the higher magnetic fields, the conductor tensile strain must be limited to less than about 0.5% to prevent damage to the brittle superconducting material. Also, coil fabrication methods must be changed. If the superconductor is in the reacted, or brittle, state, the coil winding procedure must be modified to prevent overstraining. If the alternative wind and react approach is used, new insulating materials must be used that can survive the high temperature reactions (650 to 800 C) necessary to form the superconducting compounds. The issues associated with high-field dipole magnets have been discussed at a number of workshops, including those at DESY in 1991 and LBL in 1992. These workshops were extremely useful in defining the problems and focusing the attention of both materials and magnet experts on high-field dipole magnets; however, since neither set of proceedings was published, the information is not readily available. More recently, a workshop was held in Erice, Italy, under the sponsorship of the Ettore Maiorana Center for Scientific Culture. This international workshop was attended by 20 scientists from Europe, Japan, and the U.S., and the summary of that work, which represents the most recent and thorough assessment of the status of high-field magnets for accelerator magnets, is presented.

Scanlan, R.M.; Barletta, W.A.; Dell'Orco, D.; McInturff, A.D.; Asner, A.; Collings, E.W.; Dahl, P.F.; Desportes, H.; Devred, A.; Garre, R.; Gregory, E.; Hassenzahl, W.; Lamm, M.; Larbalestier, D.; Leory, D.; McIntyre, P.; Miller, J.; Shintomi, T.; ten Kate, H.; Wipf, S.

1994-10-01T23:59:59.000Z

353

Magnus force effect in optical manipulation  

SciTech Connect (OSTI)

The effect of the Magnus force in optical micromanipulation has been observed. An ad hoc experiment has been designed based on a one-dimensional optical trap that carries angular momentum. The observed particle dynamics reveals the occurrence of this hydrodynamic force, which is neglected in the common approach. Its measured value is larger than the one predicted by the existing theoretical models for micrometric particles and low Reynolds number, showing that the Magnus force can contribute to unconventional optohydrodynamic trapping and manipulation.

Cipparrone, Gabriella; Pagliusi, Pasquale [Dipartimento di Fisica and Centro di Eccellenza CEMIF.CAL, University of Calabria, Ponte P. Bucci, Cubo 33B, I-87036 Rende (Italy); Istituto per i Processi Chimici e Fisici, Consiglio Nazionale delle Ricerche, Ponte P. Bucci, Cubo 33B, I-87036 Rende (Italy); Hernandez, Raul Josue; Provenzano, Clementina [Dipartimento di Fisica and Centro di Eccellenza CEMIF.CAL, University of Calabria, Ponte P. Bucci, Cubo 33B, I-87036 Rende (Italy)

2011-07-15T23:59:59.000Z

354

Reduction of the Casimir force using aerogels  

Science Journals Connector (OSTI)

By using silicon oxide based aerogels we show numerically that the Casimir force can be reduced several orders of magnitude making its effect negligible in nanodevices. This decrease in the Casimir force is also present even when the aerogels are deposited on metallic substrates. To calculate the Casimir force we model the dielectric function of silicon oxide aerogels using an effective medium dielectric function such as the ClausiusMossotti approximation. The results show that both the porosity of the aerogel and its thickness can be used as control parameters to reduce the magnitude of the Casimir force.

R. Esquivel-Sirvent

2007-01-01T23:59:59.000Z

355

Ellsworth Air Force Base Advanced Metering Project  

Broader source: Energy.gov [DOE]

Presentation covers the Ellsworth Air Force Base Advanced Metering project and is given at the Spring 2010 Federal Utility Partnership Working Group (FUPWG) meeting in Providence, Rhode Island.

356

Interagency Energy Management Task Force Members  

Broader source: Energy.gov [DOE]

The Interagency Energy Management Task Force is led by the Federal Energy Management Program director, and its members include energy and sustainability managers from federal agencies.

357

Nuclear Force from Lattice QCD  

E-Print Network [OSTI]

The first lattice QCD result on the nuclear force (the NN potential) is presented in the quenched level. The standard Wilson gauge action and the standard Wilson quark action are employed on the lattice of the size 16^3\\times 24 with the gauge coupling beta=5.7 and the hopping parameter kappa=0.1665. To obtain the NN potential, we adopt a method recently proposed by CP-PACS collaboration to study the pi pi scattering phase shift. It turns out that this method provides the NN potentials which are faithful to those obtained in the analysis of NN scattering data. By identifying the equal-time Bethe-Salpeter wave function with the Schroedinger wave function for the two nucleon system, the NN potential is reconstructed so that the wave function satisfies the time-independent Schroedinger equation. In this report, we restrict ourselves to the J^P=0^+ and I=1 channel, which enables us to pick up unambiguously the ``central'' NN potential V_{central}(r). The resulting potential is seen to posses a clear repulsive core of about 500 MeV at short distance (r < 0.5 fm). Although the attraction in the intermediate and long distance regions is still missing in the present lattice set-up, our method is appeared to be quite promising in reconstructing the NN potential with lattice QCD.

Noriyoshi ISHII; Sinya AOKI; Tetsuo HATSUDA

2006-09-30T23:59:59.000Z

358

Monitoring of saline tracer movement with vertically distributed self-potential measurements at the HOBE agricultural test site, Voulund, Denmark  

E-Print Network [OSTI]

The self-potential (SP) method is sensitive to water fluxes in saturated and partially saturated porous media, such as those associated with rainwater infiltration and groundwater recharge. We present a field-based study at the Voulund agricultural test site, Denmark, that is, to the best of our knowledge, the first to focus on the vertical self-potential distribution prior to and during a saline tracer test. A coupled hydrogeophysical modeling framework is used to simulate the SP response to precipitation and saline tracer infiltration. A layered hydrological model is first obtained by inverting dielectric and matric potential data. The resulting model that compares favorably with electrical resistance tomography models is subsequently used to predict the SP response. The electrokinetic contribution (caused by water fluxes in a charged porous soil) is modeled by an effective excess charge approach that considers both water saturation and pore water salinity. Our results suggest that the effective excess char...

Jougnot, Damien; Haarder, Eline B; Looms, Majken C

2015-01-01T23:59:59.000Z

359

Preliminary Interpretation of a Radionuclide and Colloid Tracer Test in a Granodiorite Shear Zone at the Grimsel Test Site, Switzerland  

SciTech Connect (OSTI)

In February and March 2012, a tracer test involving the injection of a radionuclide-colloid cocktail was conducted in the MI shear zone at the Grimsel Test Site, Switzerland, as part of the Colloids Formation and Migration (CFM) project. The colloids were derived from FEBEX bentonite, which is mined in Spain and is being considered as a potential waste package backfill in a Spanish nuclear waste repository. The tracer test, designated test 12-02 (second test in 2012), involved the injection of the tracer cocktail into borehole CFM 06.002i2 and extraction from the Pinkel surface packer at the main access tunnel wall approximately 6.1 m from the injection interval. The test configuration is depicted in Figure 1. This configuration has been used in several conservative tracer tests and two colloid-homologue tracer tests since 2007, and it is will be employed in an upcoming test involving the emplacement of a radionuclide-doped bentonite plug into CFM 06.002i2 to evaluate the swelling and erosion of the bentonite and the transport of bentonite colloids and radionuclides from the source to the extraction point at the tunnel wall. Interpretive analyses of several of the previous tracer tests, from 09-01 through 12-02 were provided in two previous Used Fuel Disposition Program milestone reports (Arnold et al., 2011; Kersting et al., 2012). However, only the data for the conservative tracer Amino-G Acid was previously analyzed from test 12-02 because the other tracer data from this test were not available at the time. This report documents the first attempt to quantitatively analyze the radionuclide and colloid breakthrough curves from CFM test 12-02. This report was originally intended to also include an experimental assessment of colloid-facilitated transport of uranium by bentonite colloids in the Grimsel system, but this assessment was not conducted because it was reported by German collaborators at the Karlsruhe Institute of Technology (KIT) that neither uranium nor neptunium adsorbed appreciably to FEBEX bentonite colloids in Grimsel groundwater (Huber et al., 2011). The Grimsel groundwater has a relatively high pH of {approx}9, so the lack of uranium and neptunium adsorption to clay is not surprising given the tendency for these actinides to form very stable negative or neutrally-charged uranyl- or calcium-uranyl-carbonate complexes at these pH, particularly in a water that is effectively saturated with respect to calcite. It was also observed in testing conducted at LANL earlier in 2012 that uranium did not adsorb measurably to Grimsel granodiorite in a synthetic Grimsel groundwater at pH {approx}8.5 (Kersting et al., 2012). Thus, the planned experimental work was not pursued because all the available information clearly pointed to an expected result that uranium transport would not be facilitated by clay colloids in the Grimsel system.

Reimus, Paul W. [Los Alamos National Laboratory

2012-08-30T23:59:59.000Z

360

Spectroscopic diagnostics for ablation cloud of tracer-encapsulated solid pellet in LHD  

SciTech Connect (OSTI)

In the Large Helical Device (LHD), various spectroscopic diagnostics have been applied to study the ablation process of an advanced impurity pellet, tracer-encapsulated solid pellet (TESPEL). The total light emission from the ablation cloud of TESPEL is measured by photomultipliers equipped with individual interference filters, which provide information about the TESPEL penetration depth. The spectra emitted from the TESPEL ablation cloud are measured with a 250 mm Czerny-Turner spectrometer equipped with an intensified charge coupled device detector, which is operated in the fast kinetic mode. This diagnostic allows us to evaluate the temporal evolution of the electron density in the TESPEL ablation cloud. In order to gain information about the spatial distribution of the cloud parameters, a nine image optical system that can simultaneously acquire nine images of the TESPEL ablation cloud has recently been developed. Several images of the TESPEL ablation cloud in different spectral domains will give us the spatial distribution of the TESPEL cloud density and temperature.

Tamura, N.; Kalinina, D. V.; Sato, K.; Sudo, S. [National Institute for Fusion Science, 322-6, Oroshi-cho, Toki-City, Gifu 509-5292 (Japan); Sergeev, V. Yu.; Miroshnikov, I. V.; Sharov, I. A.; Bakhareva, O. A.; Ivanova, D. M.; Timokhin, V. M. [State Polytechnical University, Politechnicheskaya 29, St. Petersburg 195251 (Russian Federation); Kuteev, B. V. [Nuclear Fusion Institute, RRC 'Kurchatov Institute', Kurchatov square 1, Moscow 123182 (Russian Federation)

2008-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" from the National Library of EnergyBeta (NLEBeta).
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361

Applications of radioactive tracer technology in the real-time measurement of wear and corrosion  

Science Journals Connector (OSTI)

Radioactive tracer technology has been used for many years as a tool to make highly sensitive real-time measurements of wear and corrosion. With this technique, the material of interest is tagged with radioactive isotopes through either direct activation of a relatively small number of atoms in the component itself, or implantation of radioactive isotopes. As the component wears or corrodes under test, radioactive atoms are transported from the surface in the form of wear particles or corrosion products. Wear or corrosion is measured in real-time through either interrogation of the buildup of radioactivity in the transport fluid, or by the reduction in activity of the labeled wear component. The process involves selection of an appropriate labeling technique, labeling of a component or components of interest, calibration, testing and data reduction and analysis. Although the majority of the work performed has been in the automotive engine and lubricant industry, Southwest Research Institute has recently extended the application into other fields, such as hydraulic pump wear, prosthetic hip joint wear, wear in marine engines and crude oil corrosivity. This paper discusses the various techniques employed to label components of interest, the advantages of the techniques, and gives several examples of current applications of this technology.

D.C. Eberle; C.M. Wall; M.B. Treuhaft

2005-01-01T23:59:59.000Z

362

Tracer method to measure landfill gas emissions from leachate collection systems  

Science Journals Connector (OSTI)

This paper describes a method developed for quantification of gas emissions from the leachate collection system at landfills and present emission data measured at two Danish landfills with no landfill gas collection systems in place: Fakse landfill and AV Milj. Landfill top covers are often designed to prevent infiltration of water and thus are made from low permeable materials. At such sites a large part of the gas will often emit through other pathways such as the leachate collection system. These point releases of gaseous constituents from these locations cannot be measured using traditional flux chambers, which are often used to measure gas emissions from landfills. Comparing tracer measurements of methane (CH4) emissions from leachate systems at Fakse landfill and AV Milj to measurements of total CH4 emissions, it was found that approximately 47% (351kg CH4 d?1) and 27% (211kg CH4 d?1), respectively, of the CH4 emitting from the sites occurred from the leachate collection systems. Emission rates observed from individual leachate collection wells at the two landfills ranged from 0.1 to 76kg CH4 d?1. A strong influence on emission rates caused by rise and fall in atmospheric pressure was observed when continuously measuring emission from a leachate well over a week. Emission of CH4 was one to two orders of magnitude higher during periods of decreasing pressure compared to periods of increasing pressure.

Anders M. Fredenslund; Charlotte Scheutz; Peter Kjeldsen

2010-01-01T23:59:59.000Z

363

Mapping subsurface radionuclide migration and groundwater flow with organic tracers. [Shallow-land burial  

SciTech Connect (OSTI)

At Pacific Northwest Laboratory we have had the opportunity to study the subsurface migration of radionuclides at the Maxey Flats burial site. We constructed an experimental study area adjacent to one of the waste-filled trenches at the site. In this report we describe some preliminary results of organic research currently underway at Maxey Flats. This research is aimed at: (1) elucidating the role of organic species in the subsurface migration of radionuclides; and (2) testing the usefulness of artificial and in situ organic groundwater tracers for mapping radionuclide migration and groundwater flow. We also describe two analytical procedures developed for this research. First, as part of a survey study of organics in Maxey Flats groundwater we have developed a procedure for the isolation and characterization of trace levels of organics in radioactive groundwaters. Second, for a detailed chemical speciation study we developed a procedure based on steric exclusion chromatography for testing whether or not organics are chelated to radionuclides. 1 figure, 1 table.

Toste, A.P.; Kirby, L.J.; Pahl, T.R.; Myers, R.B.

1983-10-01T23:59:59.000Z

364

Recapitalizing EMSL: Meeting Future Science  

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

Recapitalizing EMSL: Recapitalizing EMSL: Meeting Future Science and Technology Challenges Environmental Molecular Sciences Laboratory 2008 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor Battelle Memorial Institute, 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. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not

365

Physics Reach at Future Colliders  

SciTech Connect (OSTI)

The physics reach at future colliders is discussed, with focus on the Higgs sector. First we present the Standard Model and some results obtained at the existing high-energy hadron collider, Tevatron, together with the corresponding expectations for the Large Hadron Collider (LHC), which starts operating in 2008. Then we discuss important low energy measurements: the anomalous magnetic moment for muon and the leptonic B-decay together with b{yields}s{gamma}. Finally the potential of the planned e{sup +}e{sup -} International Linear Collider (ILC) and its possible option Photon Linear Collider (PLC), e{gamma} and {gamma}{gamma}, is shortly presented.

Krawczyk, Maria [Institute of Theoretical Physics, University of Warsaw, ul. Hoz-dota 69, 00-681 Warsaw (Poland); CERN, CH-1211 Geneva 23 (Switzerland)

2007-11-27T23:59:59.000Z

366

Superconductivity: Past, present, and future  

SciTech Connect (OSTI)

This paper provides an overview of superconductor research and development activities, with emphasis on the potential of high-{Tc} materials for future applications. Superconductor applications are grouped under the following categories: electronics/instrumentation, bulk material/castings, research devices, industrial/commercial, electric power, and transportation/propulsion. Near-term applications are typically based on thin film and cast forms of high-{Tc} materials, while large-scale applications requiring long lengths of wire are considered intermediate to long term. As a major side benefit of high-{Tc} superconductor research, renewed interest is being focused on the use of low-{Tc} materials for large-scale applications.

Uherka, K.L.

1992-01-01T23:59:59.000Z

367

Superconductivity: Past, present, and future  

SciTech Connect (OSTI)

This paper provides an overview of superconductor research and development activities, with emphasis on the potential of high-{Tc} materials for future applications. Superconductor applications are grouped under the following categories: electronics/instrumentation, bulk material/castings, research devices, industrial/commercial, electric power, and transportation/propulsion. Near-term applications are typically based on thin film and cast forms of high-{Tc} materials, while large-scale applications requiring long lengths of wire are considered intermediate to long term. As a major side benefit of high-{Tc} superconductor research, renewed interest is being focused on the use of low-{Tc} materials for large-scale applications.

Uherka, K.L.

1992-06-01T23:59:59.000Z

368

129 Iodine: A New Hydrologic Tracer for Aquifer Recharge Conditions Influenced by River Flow Rate and Evapotranspiration  

E-Print Network [OSTI]

County using boron isotopes and general geochemistry, In Lawrence Livermore National Laboratory UCRL-ID-133529 (pp. 44). ? Davisson, M.L., Hudson, G.B., Herndon, R., & Woodside, G. (1999b). Report on isotope tracer investigations in the Forebay... of the Orange County Groundwater Basin: Fiscal years 1996 and 1997, In Lawrence Livermore National Laboratory UCRL-ID- 133531 (pp. 44). ? Dissanayake, C.B. & Chandrajith, R. (1999). Medical geochemistry of tropical environments. Earth-Science Reviews 47, 219...

Schwehr, K. A.; Santschi, P. H.; Moran, J. E.

2003-01-01T23:59:59.000Z

369

FEDERAL SMART GRID TASK FORCE - February 26, 2009 Task Force Meeting Agenda  

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

FEDERAL SMART GRID TASK FORCE - February 26, 2009 Task Force FEDERAL SMART GRID TASK FORCE - February 26, 2009 Task Force Meeting Agenda FEDERAL SMART GRID TASK FORCE - February 26, 2009 Task Force Meeting Agenda February 26, 2009 Task Force Meeting Agenda - CONFERENCE CALL Agenda FEDERAL SMART GRID TASK FORCE CONFERENCE CALL February 26, 2009 10:00-11:00 AM 10:00 Opening and Introduction - Eric Lightner, DOE * Call the meeting to order, around-the-table introductions, review of the agenda, additions to agenda 10:05 Update from DOE - Eric Lightner * Stimulus update * E-Forum * Fact sheet - discussion 10:30 Update from FERC - Ray Palmer, David Andrejcak * NARUC-FERC Smart Grid Collaborative meeting update 10:40 Update from NIST - William Anderson, Jerry FitzPatrick * Interoperability Standards Framework report to Congress

370

Tendon Arrangement and Muscle Force Requirements for Humanlike Force Capabilities in a Robotic Finger  

E-Print Network [OSTI]

Finger Nancy S. Pollard and Richards C. Gilbert Brown University Abstract Human motion can provide a rich hand has strong asym- metry in these directions: flexion forces ­ the forces needed to form a power

Pollard, Nancy

371

Characterization of volatile organic compounds (VOCs) in Asian and north American pollution plumes during INTEX-B: identification of specific Chinese air mass tracers  

E-Print Network [OSTI]

coal and biofuel combustion and biomass burning (Khalil andcombustion products ethyne and benzene, and of the biomass/combustion tracer ethyne, the industrial solvent CH 2 Cl 2 , and the two coal/biomass

2009-01-01T23:59:59.000Z

372

Keynote Address: Future Vision | Department of Energy  

Office of Environmental Management (EM)

Future Vision Keynote Address: Future Vision May 20, 2014 1:00PM to 1:30PM PDT Pacific Ballroom Tuesday's keynote address by Raffi Garabedian, Chief Technology Officer, First Solar...

373

Future Forests Program Plan 2013 2016  

E-Print Network [OSTI]

is that knowledge produced by Future Forests will make possible an increased and yet, we envision that knowledge produced by Future Forests will contribute for biodiversity conservation, water protection, recreational needs, climate change mitigation

374

WHAT FUTURE FOR UK HIGHER EDUCATION?  

E-Print Network [OSTI]

BERKELEY http://cshe.berkeley.edu/ WHAT FUTURE FOR UK HIGHERof the course). Brown, What Future for UK Higher Educationand local trends and also on what happens on migration, and

Roger Brown

2010-01-01T23:59:59.000Z

375

Building Blocks for the Future of Manufacturing  

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

for the Future of Manufacturing Building Blocks for the Future of Manufacturing Scott Smith 2011.05.04 Even though we grew up on opposite sides of the world, my colleague...

376

Interpretation of Colloid-Homologue Tracer Test 10-03, Including Comparisons to Test 10-01  

SciTech Connect (OSTI)

This presentation covers the interpretations of colloid-homologue tracer test 10-03 conducted at the Grimsel Test Site, Switzerland, in 2010. It also provides a comparison of the interpreted test results with those of tracer test 10-01, which was conducted in the same fracture flow system and using the same tracers than test 10-03, but at a higher extraction flow rate. A method of correcting for apparent uranine degradation in test 10-03 is presented. Conclusions are: (1) Uranine degradation occurred in test 10-03, but not in 10-01; (2) Uranine correction based on apparent degradation rate in injection loop in test 11-02 seems reasonable when applied to data from test 10-03; (3) Colloid breakthrough curves quite similar in the two tests with similar recoveries relative to uranine (after correction); and (4) Much slower apparent desorption of homologues in test 10-03 than in 10-01 (any effect of residual homologues from test 10-01 in test 10-03?).

Reimus, Paul W. [Los Alamos National Laboratory

2012-06-26T23:59:59.000Z

377

Thermal single-well injection-withdrawal tracer tests for determining fracture-matrix heat transfer area  

SciTech Connect (OSTI)

Single-well injection-withdrawal (SWIW) tracer tests involve injection of traced fluid and subsequent tracer recovery from the same well, usually with some quiescent time between the injection and withdrawal periods. SWIW are insensitive to variations in advective processes that arise from formation heterogeneities, because upon withdrawal, fluid parcels tend to retrace the paths taken during injection. However, SWIW are sensitive to diffusive processes, such as diffusive exchange of conservative or reactive solutes between fractures and rock matrix. This paper focuses on SWIW tests in which temperature itself is used as a tracer. Numerical simulations demonstrate the sensitivity of temperature returns to fracture-matrix interaction. We consider thermal SWIW response to the two primary reservoir improvements targeted with stimulation, (1) making additional fractures accessible to injected fluids, and (2) increasing the aperture and permeability of pre-existing fractures. It is found that temperature returns in SWIW tests are insensitive to (2), while providing a strong signal of more rapid temperature recovery during the withdrawal phase for (1).

Pruess, K.; Doughty, C.

2010-01-15T23:59:59.000Z

378

An improved proximity force approximation for electrostatics  

SciTech Connect (OSTI)

A quite straightforward approximation for the electrostatic interaction between two perfectly conducting surfaces suggests itself when the distance between them is much smaller than the characteristic lengths associated with their shapes. Indeed, in the so called 'proximity force approximation' the electrostatic force is evaluated by first dividing each surface into a set of small flat patches, and then adding up the forces due two opposite pairs, the contributions of which are approximated as due to pairs of parallel planes. This approximation has been widely and successfully applied in different contexts, ranging from nuclear physics to Casimir effect calculations. We present here an improvement on this approximation, based on a derivative expansion for the electrostatic energy contained between the surfaces. The results obtained could be useful for discussing the geometric dependence of the electrostatic force, and also as a convenient benchmark for numerical analyses of the tip-sample electrostatic interaction in atomic force microscopes. - Highlights: Black-Right-Pointing-Pointer The proximity force approximation (PFA) has been widely used in different areas. Black-Right-Pointing-Pointer The PFA can be improved using a derivative expansion in the shape of the surfaces. Black-Right-Pointing-Pointer We use the improved PFA to compute electrostatic forces between conductors. Black-Right-Pointing-Pointer The results can be used as an analytic benchmark for numerical calculations in AFM. Black-Right-Pointing-Pointer Insight is provided for people who use the PFA to compute nuclear and Casimir forces.

Fosco, Cesar D. [Centro Atomico Bariloche, Comision Nacional de Energia Atomica, R8402AGP Bariloche (Argentina) [Centro Atomico Bariloche, Comision Nacional de Energia Atomica, R8402AGP Bariloche (Argentina); Instituto Balseiro, Universidad Nacional de Cuyo, R8402AGP Bariloche (Argentina); Lombardo, Fernando C. [Departamento de Fisica Juan Jose Giambiagi, FCEyN UBA, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina) [Departamento de Fisica Juan Jose Giambiagi, FCEyN UBA, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina); IFIBA (Argentina)] [Argentina; Mazzitelli, Francisco D., E-mail: fdmazzi@cab.cnea.gov.ar [Centro Atomico Bariloche, Comision Nacional de Energia Atomica, R8402AGP Bariloche (Argentina); Departamento de Fisica Juan Jose Giambiagi, FCEyN UBA, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon I, 1428 Buenos Aires (Argentina)

2012-08-15T23:59:59.000Z

379

Work Force Retention Work Group Charter  

Broader source: Energy.gov [DOE]

The Work force Retention Work Group is established to support the Departments critical focus on maintaining a high-performing work force at a time when a significant number of the workers needed to support DOEs national security mission are reaching retirement age.

380

U.S.Air Force Advanced Power  

E-Print Network [OSTI]

efficiency,improved power distribution,reduced fuel dependency,reduction of noise,heat,and visual signatureU.S.Air Force Advanced Power Technology Office (APTO) U.S.Air Force Advanced Power Technology/Wind Powered Hydrogen Generation for Fuel Cell Applications · Waste-To-Energy APTO/Small Business Innovation

Note: This page contains sample records for the topic "forcing tracers future" 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

Water Conservation Task Force (2014 Charge)  

E-Print Network [OSTI]

Water Conservation Task Force (2014 Charge) The Task Force will advise the Chancellor and Campus Provost/Executive Vice Chancellor (CP/EVC) on current and past water use and provide recommendations on implementation of policies for potable water use reductions in support of The Regents Policy on Sustainable

California at Santa Cruz, University of

382

Sustainability Initiative Task Force Final Report  

E-Print Network [OSTI]

UW­Madison Sustainability Initiative Task Force Final Report October 2010 #12;We are pleased to present the final report of the campus Sustainability Task Force. This report fulfills the charge we gave to sustainability for consideration by UW­Madison's leadership and campus community. There are many reasons why

Sheridan, Jennifer

383

California's Energy Future - The View to 2050  

E-Print Network [OSTI]

Energy Future - The View to 2050 Bin Biofuel Technology Hydrogen Ethanol from sugar and starch (e.g. , corn,

2011-01-01T23:59:59.000Z

384

Future Science & Technology Programs | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

Future Science & Technology Programs | National Nuclear Security Administration People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency...

385

ARM - PI Product - Direct Aerosol Forcing Uncertainty  

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

ProductsDirect Aerosol Forcing Uncertainty ProductsDirect Aerosol Forcing Uncertainty Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send PI Product : Direct Aerosol Forcing Uncertainty Site(s) NSA SGP TWP General Description Understanding sources of uncertainty in aerosol direct radiative forcing (DRF), the difference in a given radiative flux component with and without aerosol, is essential to quantifying changes in Earth's radiation budget. We examine the uncertainty in DRF due to measurement uncertainty in the quantities on which it depends: aerosol optical depth, single scattering albedo, asymmetry parameter, solar geometry, and surface albedo. Direct radiative forcing at the top of the atmosphere and at the surface as well as sensitivities, the changes in DRF in response to unit changes in

386

Force localization in contracting cell layers  

E-Print Network [OSTI]

Epithelial cell layers on soft elastic substrates or pillar arrays are commonly used as model systems for investigating the role of force in tissue growth, maintenance and repair. Here we show analytically that the experimentally observed localization of traction forces to the periphery of the cell layers does not necessarily imply increased local cell activity, but follows naturally from the elastic problem of a finite-sized contractile layer coupled to an elastic foundation. For homogeneous contractility, the force localization is determined by one dimensionless parameter interpolating between linear and exponential force profiles for the extreme cases of very soft and very stiff substrates, respectively. If contractility is sufficiently increased at the periphery, outward directed displacements can occur at intermediate positions, although the edge itself still retracts. We also show that anisotropic extracellular stiffness leads to force localization in the stiffer direction, as observed experimentally.

Carina M. Edwards; Ulrich S. Schwarz

2012-01-13T23:59:59.000Z

387

Measurement of tool forces in diamond turning  

SciTech Connect (OSTI)

A dynamometer has been designed and built to measure forces in diamond turning. The design includes a 3-component, piezoelectric transducer. Initial experiments with this dynamometer system included verification of its predicted dynamic characteristics as well as a detailed study of cutting parameters. Many cutting experiments have been conducted on OFHC Copper and 6061-T6 Aluminum. Tests have involved investigation of velocity effects, and the effects of depth and feedrate on tool forces. Velocity has been determined to have negligible effects between 4 and 21 m/s. Forces generally increase with increasing depth of cut. Increasing feedrate does not necessarily lead to higher forces. Results suggest that a simple model may not be sufficient to describe the forces produced in the diamond turning process.

Drescher, J.; Dow, T.A.

1988-12-01T23:59:59.000Z

388

Future Internet Infrastructures for FI Prototyping  

E-Print Network [OSTI]

++ Fraunhofer Institute FOKUS, Berlin ++ www.fokus.fraunhofer.de/go/innovation ++ 11­2009 #12;Future Internet Berlin AV de- partment (Architektur für Vermittlungskno- ten). Part of the Fraunhofer innovation clusFuture Internet Infrastructures for FI Prototyping NGN Evolution toward Future Internet Fraunhofer

Wichmann, Felix

389

ENERGY WHITE PAPER Our energy future -  

E-Print Network [OSTI]

ENERGY WHITE PAPER Our energy future - creating a low carbon economy and consumers. And we stand up for fair and open markets in the UK, Europe and the world. #12;Our energy future ENERGY WHITE PAPER Our energy future - creating a low carbon economy 1 Foreword

390

Bachelor Thesis Future sustainable terraced houses  

E-Print Network [OSTI]

Cardiff University August 4, 2014 #12;Colophon Title: Future sustainable residential buildings in Cardiff a first introduction about sustainability in the building sector. Collecting data about the future climateBachelor Thesis Future sustainable terraced houses in Cardiff Karin Ernst University of Twente

Vellekoop, Michel

391

CURRENT AND FUTURE IGCC TECHNOLOGIES:  

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

16, 2008 16, 2008 DOE/NETL-2008/1337 A Pathway Study Focused on Non-Carbon Capture Advanced Power Systems R&D Using Bituminous Coal - Volume 1 Current and Future IGCC Technologies Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any 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. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or

392

Future Heating | Open Energy Information  

Open Energy Info (EERE)

Heating Heating Jump to: navigation, search Name Future Heating Place London, England, United Kingdom Sector Solar Product Designs and installs solar passive water heating systems. Coordinates 51.506325°, -0.127144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

393

FutureGen_factsheet.cdr  

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

Vision Vision for Tomorrow's Clean Energy FutureGen - A Sequestration and Hydrogen Research Initiative Responding to the President's Initiatives The Technology The Integrated Sequestration and Hydrogen Research Initiative is a $1 billion government/ industry partnership to design, build and operate a nearly emission-free, coal-fired electric and hydrogen production plant. The 275-megawatt prototype plant will serve as a large scale engineering laboratory for testing new clean power, carbon capture, and coal-to-hydrogen technologies. It will be the cleanest fossil fuel-fired power plant in the world. The project is a direct response to the President's Climate Change and Hydrogen Fuels Initiatives. President Bush emphasized the importance of technology in stabilizing greenhouse gas concentrations in the atmosphere with two major policy announcements: the National Climate

394

Catalyzing a cleaner Energy Future  

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

11 11 Catalyzing a Cleaner Energy Future When asked about catalysts, most people probably remember a simple definition copied from the chalkboard in an early chemistry class: a substance that accelerates or modifies a chemical reaction without itself being affected. Or certain personalities may spring to mind; the term is routinely borrowed from chemistry to refer, in social and professional contexts, to a person or team whose energetic, efficient work quickly creates change in a given field. Or the first thought may be of the car in one's driveway and its catalytic converter, which chemically grabs some of the worst pollutants from exhaust and makes them harmless before they reach the tailpipe. In a way, continuing work by scientists at the Environmental Molecular

395

Gamma ray bursts: The future  

Science Journals Connector (OSTI)

Gamma-ray bursts are the most dramatic and powerful cosmic explosions known. They also continue to be the most puzzling. Thanks to breakthrough observations over the last decade however a picture has emerged of gamma-ray bursts being at cosmological distances and capable of releasing more than 10 51 ergs of energy within seconds. Despite the emergence of this picture the physical origin of bursts is still unknown and the classification of different types of bursts is still in its infancy. Further understanding of gamma-ray bursts requires the wise use of our current resources and the development of new observational capabilities. We outline the current state of our knowledge of bursts and describe the present and future instrumentation which will enable us to understand these baffling blasts.

N. Gehrels; D. Macomb

2000-01-01T23:59:59.000Z

396

Chapter 24 - Nuclear energy future  

Science Journals Connector (OSTI)

Abstract This chapter attempts to concisely describe the role that nuclear power may take in the meeting the worlds future energy needs. Historically, economic considerations have triumphed all other considerations when selecting an energy source. Nuclear power growth stagnated in the late twentieth century for a variety of reasons. A revival in nuclear reactor construction is beginning in the United States and elsewhere at the start of the twenty-first century. World energyand especially electricityuse is increasing and sustainable approaches to meeting this need are sought. With rising concern about climate change, nuclear power is found to be the lowest contributor to carbon dioxide emissions, even compared to solar and wind power. Besides electricity generation, power reactors can be utilized for large-scale desalination and hydrogen generation.

Raymond L. Murray; Keith E. Holbert

2015-01-01T23:59:59.000Z

397

Tracer transport in the Greenland Ice Sheet: constraints on ice cores and glacial history  

Science Journals Connector (OSTI)

The climate history and dynamics of the Greenland Ice Sheet are studied using a coupled model of the depositional provenance and transport of glacier ice, allowing simultaneous prediction of the detailed isotopic stratigraphy of ice cores at all the major Greenland sites. Adopting a novel method for reconstructing the agedepth relationship, we greatly improve the accuracy of semi-Lagrangian tracer tracking schemes and can readily incorporate an age-dependent ice rheology. The larger aim of our study is to impose new constraints on the glacial history of the Greenland Ice Sheet. Leading sources of uncertainty in the climate and dynamic history are encapsulated in a small number of parameters: the temperature and elevation isotopic sensitivities, the glacialinterglacial precipitation contrast and the effective viscosity of ice in the flow law. Comparing predicted and observed ice layering at ice core sites, we establish plausible ranges for the key model parameters, identify climate and dynamic histories that are mutually consistent and recover the past depositional elevation of ice cores to ease interpretation of their climatic records. With the coupled three-dimensional model of ice dynamics and provenance transport we propose a method to place all the ice core records on a common time scale and use discrepancies to adjust the reconstructed climate history. Analysis of simulated GRIP ice layering and borehole temperature profiles confirms that the GRIP record is sensitive to the dynamic as well as to the climatic history, but not enough to strongly limit speculation on the state of the Greenland Ice Sheet during the Eemian. In contrast, our study indicates that the Dye 3 and Camp Century ice cores are extremely sensitive to ice dynamics and greatly constrain Eemian ice sheet reconstructions. We suggest that the maximum Eemian sea-level contribution of the ice sheet was in the range of 3.54.5m.

Nicolas Lhomme; Garry K.C. Clarke; Shawn J. Marshall

2005-01-01T23:59:59.000Z

398

Modeling The GRB Host Galaxy Mass Distribution: Are GRBs Unbiased Tracers of Star Formation?  

SciTech Connect (OSTI)

We model the mass distribution of long gamma-ray burst (GRB) host galaxies given recent results suggesting that GRBs occur in low metallicity environments. By utilizing measurements of the redshift evolution of the mass-metallicity (M-Z) relationship for galaxies, along with a sharp host metallicity cut-off suggested by Modjaz and collaborators, we estimate an upper limit on the stellar mass of a galaxy that can efficiently produce a GRB as a function of redshift. By employing consistent abundance indicators, we find that sub-solar metallicity cut-offs effectively limit GRBs to low stellar mass spirals and dwarf galaxies at low redshift. At higher redshifts, as the average metallicity of galaxies in the Universe falls, the mass range of galaxies capable of hosting a GRB broadens, with an upper bound approaching the mass of even the largest spiral galaxies. We compare these predicted limits to the growing number of published GRB host masses and find that extremely low metallicity cut-offs of 0.1 to 0.5 Z{sub {circle_dot}} are effectively ruled out by a large number of intermediate mass galaxies at low redshift. A mass function that includes a smooth decrease in the efficiency of producing GRBs in galaxies of metallicity above 12+log(O/H){sub KK04} = 8.7 can, however, accommodate a majority of the measured host galaxy masses. We find that at z {approx} 1, the peak in the observed GRB host mass distribution is inconsistent with the expected peak in the mass of galaxies harboring most of the star formation. This suggests that GRBs are metallicity biased tracers of star formation at low and intermediate redshifts, although our model predicts that this bias should disappear at higher redshifts due to the evolving metallicity content of the universe.

Kocevski, Daniel; /KIPAC, Menlo Park; West, Andrew A.; /UC, Berkeley, Astron. Dept. /MIT, MKI; Modjaz, Maryam; /UC, Berkeley, Astron. Dept.

2009-08-03T23:59:59.000Z

399

Economics and regulation of petroleum futures markets  

SciTech Connect (OSTI)

Because the futures market in petroleum products is a relatively recent phenomenon, the implications of public policies formulated for that market have not yet been fully explored. To provide the Office of Competition of the Department of Energy (DOE) with sufficient information to assess policy alternatives, Resource Planning Associates, Inc. (RPA) was asked to analyze the development of the futures market in No. 2 oil, assess the potential for futures markets in other petroleum products, and identify policy alternatives available to DOE. To perform this analysis, the criteria for a viable futures market was established first. Then, the experience to date with the 18-month-old futures market in No. 2 oil was examined, and the potential for viable futures markets in No. 6 oil, gasoline, jet fuel, and crude oil was assessed. Finally, how existing DOE regulations and prospective actions might affect petroleum futures market development was investigated.

Not Available

1980-08-01T23:59:59.000Z

400

Field-regulated force by grafted polyelectrolytes  

E-Print Network [OSTI]

Generation of mechanical force regulated by external electric field is studied both theoretically and by molecular dynamics (MD) simulations. The force arises in deformable bodies linked to the free end of a grafted polyelectrolyte chain which is exposed to electric field that favours its adsorption. We consider a few target bodies with different force-deformation relations including (i) linear and (ii) cubic dependences as well as (iii) Hertzian-like force. Such force-deformation relations mimic the behaviour of (i) coiled and (ii) stretched polymer chains, respectively, or (iii) that of a squeezed colloidal particle. The magnitude of the arising force varies over a wide interval although the electric field alters within a relatively narrow range only. The predictions of our theory agree quantitatively well with the results of numerical simulations. Both cases of zero and finite electrical current are investigated and we do not obtain substantial differences in the force generated. The phenomenon studied could possibly be utilised to design, e.g., vice-like devices to fix nano-sized objects.

Christian Seidel; Yury A. Budkov; Nikolay V. Brilliantov

2014-11-08T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

Piezoresistive cantilever force-clamp system  

SciTech Connect (OSTI)

We present a microelectromechanical device-based tool, namely, a force-clamp system that sets or ''clamps'' the scaled force and can apply designed loading profiles (e.g., constant, sinusoidal) of a desired magnitude. The system implements a piezoresistive cantilever as a force sensor and the built-in capacitive sensor of a piezoelectric actuator as a displacement sensor, such that sample indentation depth can be directly calculated from the force and displacement signals. A programmable real-time controller operating at 100 kHz feedback calculates the driving voltage of the actuator. The system has two distinct modes: a force-clamp mode that controls the force applied to a sample and a displacement-clamp mode that controls the moving distance of the actuator. We demonstrate that the system has a large dynamic range (sub-nN up to tens of {mu}N force and nm up to tens of {mu}m displacement) in both air and water, and excellent dynamic response (fast response time, <2 ms and large bandwidth, 1 Hz up to 1 kHz). In addition, the system has been specifically designed to be integrated with other instruments such as a microscope with patch-clamp electronics. We demonstrate the capabilities of the system by using it to calibrate the stiffness and sensitivity of an electrostatic actuator and to measure the mechanics of a living, freely moving Caenorhabditis elegans nematode.

Park, Sung-Jin; Petzold, Bryan C.; Pruitt, Beth L. [Department of Mechanical Engineering, Stanford University, Stanford, California 94305 (United States); Goodman, Miriam B. [Department of Molecular and Cellular Physiology, Stanford University, Stanford, California 94305 (United States)

2011-04-15T23:59:59.000Z

402

In vivo recording of aerodynamic force with an aerodynamic force platform  

E-Print Network [OSTI]

Flapping wings enable flying animals and biomimetic robots to generate elevated aerodynamic forces. Measurements that demonstrate this capability are based on tethered experiments with robots and animals, and indirect force calculations based on measured kinematics or airflow during free flight. Remarkably, there exists no method to measure these forces directly during free flight. Such in vivo recordings in freely behaving animals are essential to better understand the precise aerodynamic function of their flapping wings, in particular during the downstroke versus upstroke. Here we demonstrate a new aerodynamic force platform (AFP) for nonintrusive aerodynamic force measurement in freely flying animals and robots. The platform encloses the animal or object that generates fluid force with a physical control surface, which mechanically integrates the net aerodynamic force that is transferred to the earth. Using a straightforward analytical solution of the Navier-Stokes equation, we verified that the method is ...

Lentink, David; Ingersoll, Rivers

2014-01-01T23:59:59.000Z

403

The effect of patch potentials in Casimir force measurements determined by heterodyne Kelvin probe force microscopy  

E-Print Network [OSTI]

Measurements of the Casimir force require the elimination of electrostatic interactions between the surfaces. However, due to electrostatic patch potentials, the voltage required to minimize the total force may not be sufficient to completely nullify the electrostatic interaction. Thus, these surface potential variations cause an additional force, which can obscure the Casimir force signal. In this paper, we inspect the spatially varying surface potential (SP) of e-beamed, sputtered, sputtered and annealed, and template stripped gold surfaces with Heterodyne Amplitude Modulated Kelvin Probe Force Microscopy (HAM-KPFM). It is demonstrated that HAM-KPFM improves the spatial resolution of surface potential measurements compared to Amplitude Modulated Kelvin Probe Force Microscopy (AM-KPFM). We find that patch potentials vary depending on sample preparation, and that the calculated pressure can be similar to the pressure difference between Casimir force calculations employing the plasma and Drude models.

Joseph L. Garrett; David Somers; Jeremy N. Munday

2014-09-17T23:59:59.000Z

404

Global Distribution and Climate Forcing of Marine Organic Aerosol - Part 2: Effects on Cloud Properties and Radiative Forcing  

SciTech Connect (OSTI)

A series of simulations with the Community Atmosphere Model version 5 (CAM5) with a 7-mode Modal Aerosol Model were conducted to assess the changes in cloud microphysical properties and radiative forcing resulting from marine organic aerosols. Model simulations show that the anthropogenic aerosol indirect forcing (AIF) predicted by CAM5 is decreased in absolute magnitude by up to 0.09 Wm{sup -2} (7 %) when marine organic aerosols are included. Changes in the AIF from marine organic aerosols are associated with small global increases in low-level incloud droplet number concentration and liquid water path of 1.3 cm{sup -3} (1.5 %) and 0.22 gm{sup -2} (0.5 %), respectively. Areas especially sensitive to changes in cloud properties due to marine organic aerosol include the Southern Ocean, North Pacific Ocean, and North Atlantic Ocean, all of which are characterized by high marine organic emission rates. As climate models are particularly sensitive to the background aerosol concentration, this small but non-negligible change in the AIF due to marine organic aerosols provides a notable link for ocean-ecosystem marine low-level cloud interactions and may be a candidate for consideration in future earth system models.

Gantt, Brett; Xu, Jun; Meskhidze, N.; Zhang, Yang; Nenes, Athanasios; Ghan, Steven J.; Liu, Xiaohong; Easter, Richard C.; Zaveri, Rahul A.

2012-07-25T23:59:59.000Z

405

The RHIC SPIN Program: Achievements and Future Opportunities  

E-Print Network [OSTI]

Time and again, spin has been a key element in the exploration of fundamental physics. Spin-dependent observables have often revealed deficits in the assumed theoretical framework and have led to novel developments and concepts. Spin is exploited in many parity-violating experiments searching for physics beyond the Standard Model or studying the nature of nucleon-nucleon forces. The RHIC spin program plays a special role in this grand scheme: it uses spin to study how a complex many-body system such as the proton arises from the dynamics of QCD. Many exciting results from RHIC spin have emerged to date, most of them from RHIC running after the 2007 Long Range Plan. In this document we present highlights from the RHIC program to date and lay out the roadmap for the significant advances that are possible with future RHIC running.

Elke-Caroline Aschenauer; Alexander Bazilevsky; Markus Diehl; James Drachenberg; Kjeld Oleg Eyser; Renee Fatemi; Carl Gagliardi; Zhongbo Kang; Yuri V. Kovchegov; John Lajoie; Jeong-Hun Lee; Emanuele-R. Nocera; Daniel Pitonyak; Alexei Prokudin; Rodolfo Sassot; Ralf Seidl; Ernst Sichtermann; Matt Sievert; Bernd Surrow; Marco Stratmann; Werner Vogelsang; Anselm Vossen; Scott W. Wissink; Feng Yuan

2015-01-07T23:59:59.000Z

406

The RHIC SPIN Program: Achievements and Future Opportunities  

E-Print Network [OSTI]

Time and again, spin has been a key element in the exploration of fundamental physics. Spin-dependent observables have often revealed deficits in the assumed theoretical framework and have led to novel developments and concepts. Spin is exploited in many parity-violating experiments searching for physics beyond the Standard Model or studying the nature of nucleon-nucleon forces. The RHIC spin program plays a special role in this grand scheme: it uses spin to study how a complex many-body system such as the proton arises from the dynamics of QCD. Many exciting results from RHIC spin have emerged to date, most of them from RHIC running after the 2007 Long Range Plan. In this document we present highlights from the RHIC program to date and lay out the roadmap for the significant advances that are possible with future RHIC running.

Aschenauer, Elke-Caroline; Diehl, Markus; Drachenberg, James; Eyser, Kjeld Oleg; Fatemi, Renee; Gagliardi, Carl; Kang, Zhongbo; Kovchegov, Yuri; Lajoie, John; Lee, Jeong-Hun; Nocera, Emanuele-R; Pitonyak, Daniel; Prokudin, Alexei; Sassot, Rodolfo; Seidl, Ralf; Sichtermann, Ernst; Sievert, Matt; Surrow, Bernd; Stratmann, Marco; Vogelsang, Werner; Vossen, Anselm; Wissink, Scott W; Yuan, Feng

2015-01-01T23:59:59.000Z

407

Definition: Forced Outage | Open Energy Information  

Open Energy Info (EERE)

Forced Outage Forced Outage Jump to: navigation, search Dictionary.png Forced Outage The removal from service availability of a generating unit, transmission line, or other facility for emergency reasons., The condition in which the equipment is unavailable due to unanticipated failure.[1] Related Terms transmission lines, transmission line References ↑ Glossary of Terms Used in Reliability Standards An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Forced_Outage&oldid=480310" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data

408

Kirland Air Force Base wins Robot Rodeo  

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

Kirland Air Force Base wins Robot Rodeo Kirland Air Force Base wins Robot Rodeo Community Connections: Our link to Northern New Mexico Communities Latest Issue:Dec. 2013 - Jan. 2014 All Issues » submit Kirland Air Force Base wins Robot Rodeo Hazardous devices teams test their maneuvering skills July 1, 2013 Students from Valarde Middle School won the video competition in the Best in Show and Middle School categories. They are shown here with sixth-grade teacher Jimmy Lara. During the Robot Rodeo, an unseen operator attempts to conduct reconnaissance and rescue injured personnel Contact Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email Kirland Air Force Base wins Robot Rodeo Police and public safety teams from as far away as New Jersey recently convened in Albuquerque to test their ability to remotely deploy robots

409

U.S. Air Force UESCs  

Broader source: Energy.gov [DOE]

Presentationgiven at the Spring 2009 Federal Utility Partnership Working Group (FUPWG) meetingcovers the U.S. Air Force's approval process, submittal requirements, and guidelines for utility energy service contracts (UESCs).

410

Qualifying Facility Wheeling Task Force-- Status Report  

E-Print Network [OSTI]

Docket No. 8650 that the PUCT review the applicability of certain parts of the wheeling rules, and in April the Commission appointed a task force composed of representatives from affected industries, utilities, and regulatory staff to review the wheeling...

Panjavan, S.

411

Polarization dependent forces in optical vortex pipeline  

Science Journals Connector (OSTI)

We study both, theoretically and in experiments, the dependence of optical forces acting on a spherical particle guided in air with an optical vortex beam, on the light polarization...

Eckerskorn, Niko; Krolikowski, Wieslaw; Shvedov, Vladlen; Rode, Andrei

412

MagLab - Lorentz Force Tutorial  

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

downloading the latest version of Java. A charged particle moving through a magnetic field experiences a force that is at right angles to both the direction in which the...

413

Macroscopic approach to the Casimir friction force  

E-Print Network [OSTI]

The general formula is derived for the vacuum friction force between two parallel perfectly flat planes bounding two material media separated by a vacuum gap and moving relative to each other with a constant velocity $\\mathbf{v}$. The material media are described in the framework of macroscopic electrodynamics whereas the nonzero temperature and dissipation are taken into account by making use of the Kubo formulae from non-equilibrium statistical thermodynamics. The formula obtained provides a rigorous basis for calculation of the vacuum friction force within the quantum field theory methods in the condensed matter physics. The revealed $v$-dependence of the vacuum friction force proves to be the following: for zero temperature ($T=0$) it is proportional to $(v/c)^3$ and for $T>0$ this force is linear in $(v/c)$.

V. V. Nesterenko; A. V. Nesterenko

2014-03-13T23:59:59.000Z

414

Modelling the climate response to orbital forcing  

Science Journals Connector (OSTI)

...next few years there will be a tremendous expansion in models that include several additional components. Such Earth system models will at last allow us to fully tackle the link between orbital forcing, climate variability, and the sediment...

1999-01-01T23:59:59.000Z

415

Sponsored by Air Force Research Laboratory  

E-Print Network [OSTI]

Sponsored by Air Force Research Laboratory Space Vehicles Directorate Directed Energy Directorate PROGRAM Space Scholars and Directed Energy Scholars The Space Vehicles and Directed Energy Directorates Scholars The Phillips Scholars internship offers an edu- cational and fulfilling summer job experience

Piao, Daqing

416

Static forces in a superconducting magnet bearing  

SciTech Connect (OSTI)

Static levitation forces and stiffnesses in a superconducting bearing consisting of concentric ring magnets and a superconducting YBaCuO ring are investigated. In the field-cooled mode a levitation force of 20 N has been achieved. The axial and radial stiffnesses have values of 15 N/mm and 10 N/mm, respectively. An arrangement with two bearings supporting a high speed shaft is now under development. A possible application of superconducting magnetic bearings is flywheels for energy storage.

Stoye, P.; Fuchs, G. [Institut fuer Festkoerper- und Werkstofforschung, Dresden (Germany)] [Institut fuer Festkoerper- und Werkstofforschung, Dresden (Germany); Gawalek, W.; Goernert, P. [Institut fuer Physikalische Hochtechnologie, Jena (Germany)] [Institut fuer Physikalische Hochtechnologie, Jena (Germany); Gladun, A. [Technische Univ., Dresden (Germany)] [Technische Univ., Dresden (Germany)

1995-11-01T23:59:59.000Z

417

Plastic Solar Cells See Bright Future | ANSER Center | Argonne...  

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

Plastic Solar Cells See Bright Future Home > News & Events > Plastic Solar Cells See Bright Future Plastic Solar Cells See Bright Future Evanston, Ill---Energy consumption is...

418

Biomass 2014: Growing the Future Bioeconomy | Department of Energy  

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

Biomass 2014: Growing the Future Bioeconomy Biomass 2014: Growing the Future Bioeconomy Bioenergy: America's Energy Future is a short documentary film showcasing examples of...

419

Blue Ribbon Commission on Americas Nuclear Future...  

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

Future&0; Blue Ribbon Commission on America&8217;s Nuclear Future&0; Blue Ribbon Commission on America&8217;s Nuclear Future&0; More Documents & Publications Document...

420

Challenges in future linear colliders  

SciTech Connect (OSTI)

For decades, electron-positron colliders have been complementing proton-proton colliders. But the circular LEP, the largest e-e+ collider, represented an energy limit beyond which energy losses to synchrotron radiation necessitate moving to e-e+ linear colliders (LCs), thereby raising new challenges for accelerator builders. Japanese-American, German, and European collaborations have presented options for the Future Linear Collider (FLC). Key accelerator issues for any FLC option are the achievement of high enough energy and luminosity. Damping rings, taking advantage of the phenomenon of synchrotron radiation, have been developed as the means for decreasing beam size, which is crucial for ensuring a sufficiently high rate of particle-particle collisions. Related challenges are alignment and stability in an environment where even minute ground motion can disrupt performance, and the ability to monitor beam size. The technical challenges exist within a wider context of socioeconomic and political challenges, likely necessitating continued development of international collaboration among parties involved in accelerator-based physics.

Swapan Chattopadhyay; Kaoru Yokoya

2002-09-02T23:59:59.000Z

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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

17 - Future of Paper Recycling  

Science Journals Connector (OSTI)

Recycled fibre is becoming a globally traded commodity with countries that are rich in it developing important export businesses around its trade. The main drivers for the use of recycled fibre continue to be availability at an economic price, legislative and voluntary agreements based on environmental pressure, and continuously improving technologies for deinking and other recovered fibre processing. Despite this increasing role as a raw material for the paper industry, issues such as price volatility of recovered paper, quality factors, food contact proposals and ever-increasing environmental pressures and considerations may cause a rethink in some sectors. This is resulting in some companies opting for virgin fibre, which greatly reduces issues related to quality and food contact. Quality and price issues can, to a certain extent, be influenced by the industry and its supply chain. Environmental considerations and any new proposals relating to food contact will require effective lobbying to ensure the overall industry is not disadvantaged. The future of paper recycling is discussed in this chapter.

Pratima Bajpai

2014-01-01T23:59:59.000Z

422

The house of the future  

ScienceCinema (OSTI)

Learn what it will take to create tomorrow's net-zero energy home as scientists reveal the secrets of cool roofs, smart windows, and computer-driven energy control systems. The net-zero energy home: Scientists are working to make tomorrow's homes more than just energy efficient -- they want them to be zero energy. Iain Walker, a scientist in the Lab's Energy Performance of Buildings Group, will discuss what it takes to develop net-zero energy houses that generate as much energy as they use through highly aggressive energy efficiency and on-site renewable energy generation. Talking back to the grid: Imagine programming your house to use less energy if the electricity grid is full or price are high. Mary Ann Piette, deputy director of Berkeley Lab's building technology department and director of the Lab's Demand Response Research Center, will discuss how new technologies are enabling buildings to listen to the grid and automatically change their thermostat settings or lighting loads, among other demands, in response to fluctuating electricity prices. The networked (and energy efficient) house: In the future, your home's lights, climate control devices, computers, windows, and appliances could be controlled via a sophisticated digital network. If it's plugged in, it'll be connected. Bruce Nordman, an energy scientist in Berkeley Lab's Energy End-Use Forecasting group, will discuss how he and other scientists are working to ensure these networks help homeowners save energy.

None

2010-09-01T23:59:59.000Z

423

SEAB Subcommittees and Task Forces | Department of Energy  

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

is chaired by Shirley Ann Jackson. Task Forces: The SEAB Next Generation High Performance Computing Task Force The SEAB Task Force to Support the Evaluation of the New Funding...

424

Report of the Task Force on Next Generation High Performance...  

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

Report of the Task Force on Next Generation High Performance Computing Report of the Task Force on Next Generation High Performance Computing The SEAB Task Force on Next Generation...

425

A verification of quantum field theory measurement of Casimir force  

Science Journals Connector (OSTI)

Here we review our work on measurement of the Casimir force between a large aluminum coated a sphere and flat plate using an atomic force microscope. The average statistical precision is 1% of the force measur...

Anushree Roy; U Mohideen

426

Mechanical Network in Titin Immunoglobulin from Force Distribution Analysis  

E-Print Network [OSTI]

Mechanical Network in Titin Immunoglobulin from Force Distribution Analysis Wolfram Stacklies1. , M, Stuttgart, Germany Abstract The role of mechanical force in cellular processes is increasingly revealed force propagates within proteins determines their mechanical behavior yet remains largely unknown. We

Gräter, Frauke

427

Core follow calculation with the nTRACER numerical reactor and verification using power reactor measurement data  

SciTech Connect (OSTI)

The nTRACER direct whole core transport code employing the planar MOC solution based 3-D calculation method, the subgroup method for resonance treatment, the Krylov matrix exponential method for depletion, and a subchannel thermal/hydraulic calculation solver was developed for practical high-fidelity simulation of power reactors. Its accuracy and performance is verified by comparing with the measurement data obtained for three pressurized water reactor cores. It is demonstrated that accurate and detailed multi-physic simulation of power reactors is practically realizable without any prior calculations or adjustments. (authors)

Jung, Y. S.; Joo, H. G. [Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul (Korea, Republic of); Yoon, J. I. [KEPCO Nuclear Fuel, 1047 Daedukdae-ro, Yuseong-gu, Daejeon (Korea, Republic of)

2013-07-01T23:59:59.000Z

428

Aftertreatment Modeling Status, Futur Potential, and Application...  

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

NAFTA Truck Business Unit 2004deerzhang.pdf More Documents & Publications SCR Potential and Issues for Heavy-Duty Applications in the United States Future Diesel...

429

Biodiesel ASTM Update and Future Technical Needs  

Broader source: Energy.gov [DOE]

Latest ASTM fuel specifications on biodiesel blends are summarized as well as future needs for improved fuel quality, process quality controls, and new performance testing procedures.

430

CP-1: The Past, Present, and Future  

SciTech Connect (OSTI)

Lecture presented by C2ST and Argonne National Laboratory on CP1 and the current and future state of nuclear energy.

Dr. Alan Schriesheim; Dr. Mark Peters; Dr. Robert Rosner

2013-01-28T23:59:59.000Z

431

Probing Higgs Boson Interactions At Future Colliders.  

E-Print Network [OSTI]

??We present in this thesis a detailed analysis of Higgs boson interactions at future colliders. In particular we examine, in a model independent way, the (more)

Biswal, Sudhansu Sekhar

2009-01-01T23:59:59.000Z

432

Current Status and Potential Future Developments for  

E-Print Network [OSTI]

in response to public concern about tropical deforestation and demand for an international woodCurrent Status and Potential Future Developments for Forest Certification Richard P. Vlosky

433

California's Energy Future - The View to 2050  

E-Print Network [OSTI]

Strategies for Future Hydrogen Production and Use, Nationaldevelopment. 26 Off-peak hydrogen production could do thisfuels, the production of hydrogen, and the potential for

2011-01-01T23:59:59.000Z

434

ICFA: International Committee for Future Accelerators  

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

ICFA - International Committee for Future Accelerators Membership Secretary What, Why, Who is ICFA? ICFA Meetings Panels Recent Linear Collider Activities Statements Related...

435

Growing the Future Bioeconomy | Department of Energy  

Energy Savers [EERE]

Growing the Future Bioeconomy Joel Velasco, Senior Vice President, Amyris, Inc velascobiomass2014 More Documents & Publications Biomass IBR Fact Sheet: Amyris, Inc. Biomass IBR...

436

Growing America's Energy Future | Department of Energy  

Office of Environmental Management (EM)

and growing supply of transportation fuels, biopower, and bioproducts from a range of biomass resources. Abundant, renewable bioenergy can help secure America's energy future,...

437

Science and Technology of Future Light Sources  

E-Print Network [OSTI]

and Technology of Future Light Sources Far from Equilibrium Chemical Processes in a Functional Solar Cellsolar cell (DSSC). [Source: Michael Graetzel, Swiss Federal Institute of Technology,

Bergmann, Uwe

2009-01-01T23:59:59.000Z

438

Transportation Energy Futures Series: Projected Biomass Utilization...  

Office of Scientific and Technical Information (OSTI)

Projected Biomass Utilization for Fuels and Power in a Mature Market TRANSPORTATION ENERGY FUTURES SERIES: Projected Biomass Utilization for Fuels and Power in a Mature Market A...

439

The future of defense and technology  

SciTech Connect (OSTI)

This document provides an insight into the future of national defense and the impacts of utilizing technology for improved defensive postures. (FI)

Teller, E.

1991-01-10T23:59:59.000Z

440

"EOD, Up!" how explosive ordnance disposal forces can best support special operations forces .  

E-Print Network [OSTI]

??U.S. special operations forces (SOF) are likely to undertake missions against terrorists, insurgents, and other enemies where they will encounter explosive hazards. Identification, detection, and (more)

Draper, Stephen R.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

HOME OF THE FUTURE : SYSTEM OF THE FUTUREHOME OF THE FUTURE : SYSTEM OF THE FUTURE BRUCE BEIHOFF, WHIRLPOOL CORPORATION  

E-Print Network [OSTI]

...A Whirlpool Smart Grid Example... 21 Oct 2010 Rev 2 10MIT SDM 2010 Home/System of Future Whirlpool Benefits ... 21 Oct 2010 Rev 2 11MIT SDM 2010 Home/System of Future Whirlpool #12;OTHE PROBLEM o Process Process Target Product Controller Actuator Observer / Estimator Operator Functions Example

de Weck, Olivier L.

442

Solar wind energy transfer regions inside the dayside magnetopause: Accelerated heavy ions as tracers for MHD-processes in the dayside boundary layer  

Science Journals Connector (OSTI)

Plasma and magnetic field data from PROGNOZ-7 have revealed that solar wind (magnetosheath) plasma elements may penetrate the dayside magnetopause surface and form high density regions with enhanced cross-field flow in the boundary layer. The injected magnetosheath plasma is observed to have an excess drift velocity as compared to the local boundary layer plasma, comprising both cold plasma of terrestrial origin and a hot ring current component. A differential drift between two plasma components can be understood in terms of a momentum transfer process driven by an injected magnetosheath plasma population. The braking action of the injected plasma may be described as a dynamo process where particle kinetic energy is transferred into electromagnetic energy (electric field). The generated electric field will force the local plasma to ?B-drift, and the dynamo region therefore also constitutes an accelerator region for the local plasma. Whenever energy is dissipated from the energy transfer process (a net current is flowing through a load), there will also be a difference between the induced electric field and the vB term of the generator plasma. Thus, the local plasma will drift more slowly than the injected generator plasma. We will present observations showing that a relation between the momentum transferred, the injected plasma and the momentum taken up by the local plasma exists. For instance, if the local plasma density is sufficiently high, the differential drift velocity of the injected and local plasma will be small. A large fraction of the excess momentum is then transferred to the local plasma. Conversely, a low local plasma density results in a high velocity difference and a low fraction of local momentum transfer. In our study cases the cold plasma component was frequently found to dominate the local magnetospheric plasma density in the boundary layer. Accordingly, this component may have the largest influence on the local momentum transfer process. We will demonstrate that this also seems to be the case. Moreover we show that the accelerated cold plasma component may be used as a tracer element reflecting both the momentum and energy transfer and the penetration process in the dayside boundary layer. The high He+ percentage of the accelerated cold plasma indicates a plasmaspheric origin. Considering the quite high densities of energetic He+ found in the boundary layer, the overall low abundance of He+ (as compared to e.g. O+) found in the plasma sheet and outer ring current evidently reduces the importance of the dayside boundary layer as a plasma source in the large scale magnetospheric circulation system.

R. Lundin; E.M. Dubinin

1985-01-01T23:59:59.000Z

443

Smart Grid: Powering Our Way to a Greener Future | Department of Energy  

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

Grid: Powering Our Way to a Greener Future Grid: Powering Our Way to a Greener Future Smart Grid: Powering Our Way to a Greener Future April 25, 2013 - 9:28am Addthis Eric Lightner Eric Lightner Director of the Federal Smart Grid Task Force in the Office of Electricity Delivery and Energy Reliability Learning how to be smarter and more efficient about reducing our energy consumption is on the minds of everyone this week. The smart grid, with its improved efficiency and performance, is helping consumers conserve energy and save money every day. To take full advantage of a modern electric grid, however, people need to understand what those opportunities are. The "Power Over Energy" energy literacy initiative, which the Department joined this week, is educating, motivating and empowering

444

Protective Force Protocols for ESS Supported Performance Tests...  

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

Protective Force Protocols for ESS Supported Performance Tests and Exercises, March 12, 2007 Protective Force Protocols for ESS Supported Performance Tests and Exercises, March 12,...

445

6.641 Electromagnetic Fields, Forces, and Motion, Spring 2003  

E-Print Network [OSTI]

Electric and magnetic quasistatic forms of Maxwell's equations applied to dielectric, conduction, and magnetization boundary value problems. Electromagnetic forces, force densities, and stress tensors, including magnetization ...

Zahn, Markus, 1946-

446

Climate Change Task Force Webinar Series | Department of Energy  

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

Climate Change Task Force Webinar Series Climate Change Task Force Webinar Series The four-part Climate Change Impacts and Indian Country webinar series provided tribal leaders an...

447

Northeast High-Level Radioactive Waste Transportation Task Force...  

Office of Environmental Management (EM)

Northeast High-Level Radioactive Waste Transportation Task Force Agenda Northeast High-Level Radioactive Waste Transportation Task Force Agenda Northeast High-Level Radioactive...

448

U.S. Air Force Energy Program Presentation  

Broader source: Energy.gov [DOE]

Omar Mendoza, U.S. Air Force, presentation on the U.S. Air Force Energy Program at the Advanced Biofuels Industry Roundtable.

449

Government and Industry A Force for Collaboration at the Energy...  

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

Government and Industry A Force for Collaboration at the Energy Roadmap Update Workshop Government and Industry A Force for Collaboration at the Energy Roadmap Update Workshop...

450

Fuel Modification t Facilitate Future Combustion Regimes? | Department...  

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

Modification t Facilitate Future Combustion Regimes? Fuel Modification t Facilitate Future Combustion Regimes? 2005 Diesel Engine Emissions Reduction (DEER) Conference...

451

LINACS FOR FUTURE MUON FACILITIES  

SciTech Connect (OSTI)

Future Muon Colliders (MC) and Neutrino Factories (NF) based on muon storage rings will require innovative linacs to: produce the muons, cool them, compress longi-tudinally and shape them into a beam and finally to rap-idly accelerate them to multi-GeV (NF) and TeV (MC) energies. Each of these four linac applications has new requirements and opportunities that follow from the na-ture of the muon in that it has a short lifetime (? = 2.2 ?sec) in its own rest frame, it is produced in a tertiary process into a large emittance, and its electron, photon, and neutrino decay products can be more than an annoy-ance. As an example, for optimum performance, the linac repetition rates should scale inversely with the laboratory lifetime of the muon in its storage ring, something as high as 1 kHz for a 40 GeV Neutrino Factory or as low as 20 Hz for a 5 TeV Muon Collider. A superconducting 8 GeV Linac capable of CW operation is being studied as a ver-satile option for muon production [1] for colliders, facto-ries, and muon beams for diverse purposes. A linac filled with high pressure hydrogen gas and imbedded in strong magnetic fields has been proposed to rapidly cool muon beams [2]. Recirculating Linear Accelerators (RLA) are possible because muons do not generate significant syn-chrotron radiation even at extremely high energy and in strong magnetic fields. We will describe the present status of linacs for muon applications; in particular the longitu-dinal bunch compression in a single pass linac and multi-pass acceleration in the RLA, especially the optics and technical requirements for RLA designs, using supercon-ducting RF cavities capable of simultaneous acceleration of both ?+ and ?? species, with pulsed linac quadrupoles to allow the maximum number of passes. The design will include the optics for the multi-pass linac and droplet-shaped return arcs.

Slawomir Bogacz, Rolland Johnson

2008-10-01T23:59:59.000Z

452

Predicting Future Atmospheric Carbon Dioxide Levels  

Science Journals Connector (OSTI)

...Predicting future atmospheric carbon dioxide levels...1978012175 air atmosphere biosphere carbon...Predicting future atmospheric carbon dioxide levels...re-quired 5-Mhz bandwidth, which...synchronization rate of 16 khz and the picture...the interstellar plasma. For UHF frequencies...

U. Siegenthaler; H. Oeschger

1978-01-27T23:59:59.000Z

453

Initial investment choice and optimal future allocations  

E-Print Network [OSTI]

Initial investment choice and optimal future allocations M. Musielay and T. Zariphopoulouz March 21 knowledge of an investor's desirable initial investment choice can be used to determine his future optimal portfolio allocations. Optimality of investment decisions is built on forward investment perfor- mance

Zariphopoulou, Thaleia

454

for the Future The Case for  

E-Print Network [OSTI]

Building for the Future The Case for Green Buildings and Energy Security for the University a contract from the Greenpeace Clean Energy Now! campaign. Building for the Future: The Case for Green and growing demand for renewable energy, energy efficiency, and green building practices from a wide range

California at Berkeley, University of

455

Wood Futures Conference 8 November 2007, London  

E-Print Network [OSTI]

Wood Futures Conference 8 November 2007, London Today's and tomorrow's timber resources: Can we #12;Wood Futures Conference 8 November 2007, London Subjects I. Forest resources II. Forest products markets III. Certified forest products IV. Wood energy V. Conclusions VI. Recommendations VII. Questions

456

Quantifying biomineralization of zinc in the Rio Naracauli (Sardinia, Italy), using a tracer injection and synoptic sampling  

Science Journals Connector (OSTI)

Abstract Streams draining mined areas throughout the world commonly have high concentrations of Zn. Because Zn is not easily removed from stream water and because it can be toxic to aquatic organisms, its presence is a persistent problem. The discovery of biomineralization of Zn-bearing solids in the mine drainage of Rio Naracauli, in Sardinia, Italy, provides insights into strategies for removing Zn and improving water quality in streams affected by mine drainage. Until now, the transport and attenuation of Zn has not been quantified in this stream setting. A continuous tracer injection experiment was conducted to quantify the biomineralization process and to identify the loading of constituents that causes a change from precipitation of hydrozincite [Zn5(CO3)2(OH)6] in the upstream reach to precipitation of a Zn-silicate phase downstream. Based on the mass-load calculations derived from the tracer experiment, about 1.2kg/day of Zn is sequestered in hydrozincite. This biomineralization represents nearly 90% removal of Zn. Other elements such as Pb and Cd also are sequestered, either in the hydrozincite, or in a separate phase that forms simultaneously. In the lower 600m of the stream, where the Zn-silicate forms, as much as 0.7kg/day Zn are sequestered in this solid, but additions of Zn to the stream from groundwater discharge lead to an overall increase in load in that portion of the Rio Naracauli.

G. De Giudici; R.B. Wanty; F. Podda; B.A. Kimball; P.L. Verplanck; P. Lattanzi; R. Cidu; D. Medas

2014-01-01T23:59:59.000Z

457

Experimental investigation of direct injection charge cooling in optical GDI engine using tracer-based PLIF technique  

Science Journals Connector (OSTI)

Abstract Investigation of direct injection charge cooling effects is indispensable in design and development of new combustion systems for Gasoline Direct Injection (GDI) engines. The charge cooling can be utilized to increase engine volumetric efficiency or compression ratio. It can be employed to suppress pre-ignition of highly boosted downsized engines or knocking combustion of naturally aspirated engines. The main purpose of this work was to develop an experimental setup for quantitative measurements of charge cooling during fuel injection process inside the combustion chamber of a GDI engine with optical access. For this purpose a tracer-based two-line Planar Laser Induced Fluorescence (PLIF) technique was implemented for the measurements. A specially designed Constant Volume Chamber (CVC) was utilized for quasi in situ calibration measurement so in-cylinder charge temperature measurements can be achieved independent of the photophysical model of dopant tracer. The thermometry technique was evaluated by measurements of average in-cylinder charge temperature during compression stroke for both motoring and firing cycles and comparing the results with temperature values calculated from in-cylinder pressure data assuming a polytropic compression. The PLIF technique was successfully utilized to quantify the extend of global temperature decrease as a result of direct injection charge cooling of two injection timings of 90 and 250CA ATDC and two injection quantities of 10 and 30mg/cycle. Test results demonstrated the capability of the two-line PLIF thermometry technique in quantitative study of direct injection charge cooling effects.

Mohammadreza Anbari Attar; Mohammad Reza Herfatmanesh; Hua Zhao; Alasdair Cairns

2014-01-01T23:59:59.000Z

458

Renewable Energy Futures to 2050: Current Perspectives  

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

Renewable Energy Futures to 2050: Current Perspectives Renewable Energy Futures to 2050: Current Perspectives Speaker(s): Eric Martinot Date: April 4, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Ryan Wiser The future of renewable energy is fundamentally a choice, not a foregone conclusion given technology and economic trends. The new REN21 Renewables Global Futures Report illuminates that choice by showing the range of credible possibilities for the future of renewable energy. The report is not one scenario or viewpoint, but a synthesis of the contemporary thinking of many, as compiled from 170 interviews with leading experts from around the world, including CEOs and parliamentarians, and from 50 recently published energy scenarios by a range of organizations. Conservative projections show 15-20% global energy shares from renewables in the

459

California's Energy Future - The View to 2050  

E-Print Network [OSTI]

nuclear power, especially given the recent events in Japan.Japan, which led to a number of reactor explosions and radioactivity releases, will force a re-evaluation of nuclear power

2011-01-01T23:59:59.000Z

460

Global climate models: Past, present, and future  

Science Journals Connector (OSTI)

...atmosphere-ocean models, but common forcing scenarios (compiled by Cubasch and Fischer-Bruns,). Recently, Earth system models are an attempt to integrate even more components of the climate system, such as the biosphere and cryosphere (9...

Martin Stute; Amy Clement; Gerrit Lohmann

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "forcing tracers future" 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

General Multiobjective Force Field Optimization Framework, with Application to Reactive Force Fields for Silicon Carbide  

E-Print Network [OSTI]

Fields for Silicon Carbide Andres Jaramillo-Botero,* Saber Naserifar, and William A. Goddard, III: (1) the ReaxFF reactive force field for modeling the adiabatic reactive dynamics of silicon carbide specific force field parameters for tripod metal templates, tripodMO(CO)3, using the root mean square

Goddard III, William A.

462

A molecular mechanics force field for lignin  

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

Molecular Molecular Mechanics Force Field for Lignin LOUKAS PETRIDIS, JEREMY C. SMITH Center for Molecular Biophysics, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 Received 14 February 2008; Revised 8 May 2008; Accepted 12 June 2008 DOI 10.1002/jcc.21075 Published online 1 August 2008 in Wiley InterScience (www.interscience.wiley.com). Abstract: A CHARMM molecular mechanics force field for lignin is derived. Parameterization is based on reproducing quantum mechanical data of model compounds. Partial atomic charges are derived using the RESP electrostatic potential fitting method supplemented by the examination of methoxybenzene:water interactions. Dihedral parameters are optimized by fitting to critical rotational potentials and bonded parameters are obtained by optimizing vibrational frequencies and normal modes. Finally, the force field is validated

463

Spectroscopy and atomic force microscopy of biomass  

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

Spectroscopy Spectroscopy and atomic force microscopy of biomass L. Tetard a,b , A. Passian a,b,n , R.H. Farahi a , U.C. Kalluri c , B.H. Davison c , T. Thundat a,b a Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA b Department of Physics, University of Tennessee, Knoxville, TN 37996, USA c Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA a r t i c l e i n f o Keywords: Atomic force microscopy Spectroscopy Plant cells Biomass Nanomechanics a b s t r a c t Scanning probe microscopy has emerged as a powerful approach to a broader understanding of the molecular architecture of cell walls, which may shed light on the challenge of efficient cellulosic ethanol production. We have obtained preliminary images of both Populus and switchgrass samples using atomic force microscopy (AFM). The results show distinctive features that are shared by switchgrass

464

Electromigration wind force at stepped Al surfaces  

Science Journals Connector (OSTI)

When an electrical current flows parallel to a stepped metal surface, each step experiences a force due to momentum transfer from the carriers that are diffusely scattered by the step edge. In this paper, a ballistic model is used to compute the wind force per unit length acting on the steps of vicinal (100) surfaces of Al. The carrier scattering at the surface is described by a potential-barrier model fit to the results of a first-principles calculation of the surface-induced resistivity of the unstepped surface. The magnitude of the wind force is an increasing function of the step terrace width and reaches a constant value as the steps move apart. For an isolated step on a Al(100) surface, the effective wind valence per unit length of the step edge is zw?-15e -1. This value is equivalent to a wind valence of zw?-43e per atom at the leading edge of each step.

P. J. Rous

1999-03-15T23:59:59.000Z

465

Dynamical friction force exerted on spherical bodies  

E-Print Network [OSTI]

We present a rigorous calculation of the dynamical friction force exerted on a spherical massive perturber moving through an infinite homogenous system of field stars. By calculating the shape and mass of the polarization cloud induced by the perturber in the background system, which decelerates the motion of the perturber, we recover Chandrasekhar's drag force law with a modified Coulomb logarithm. As concrete examples we calculate the drag force exerted on a Plummer sphere or a sphere with the density distribution of a Hernquist profile. It is shown that the shape of the perturber affects only the exact form of the Coulomb logarithm. The latter converges on small scales, because encounters of the test and field stars with impact parameters less than the size of the massive perturber become inefficient. We confirm this way earlier results based on the impulse approximation of small angle scatterings.

O. Esquivel; B. Fuchs

2007-04-30T23:59:59.000Z

466

Giant vacuum forces via transmission lines  

E-Print Network [OSTI]

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

Ephraim Shahmoon; Igor Mazets; Gershon Kurizki

2013-04-07T23:59:59.000Z

467

David J. Gross and the Strong Force  

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

David J. Gross and the Strong Force David J. Gross and the Strong Force Resources with Additional Information The 2004 Nobel Prize in Physics was awarded to David Gross for "the discovery of asymptotic freedom in the theory of the strong interaction". 'Gross, who obtained his PhD in physics in 1966, currently is a professor of physics and director of the Kavli Institute for Theoretical Physics at UC Santa Barbara. ... David Gross Courtesy of UC Santa Barbara [When on the faculty at Princeton University,] he and then-graduate student Frank Wilczek came up with a way to describe the "strong force" that governs interactions between protons and neutrons in the nucleus of the atom. He and Wilczek published their proposal simultaneously with H. David Politzer, a graduate student [at Harvard University] who independently came up with the same idea. ...

468

Computing nonlinear force free coronal magnetic fields  

E-Print Network [OSTI]

Knowledge of the structure of the coronal magnetic field is important for our understanding of many solar activity phenomena, e.g. flares and CMEs. However, the direct measurement of coronal magnetic fields is not possible with present methods, and therefore the coronal field has to be extrapolated from photospheric measurements. Due to the low plasma beta the coronal magnetic field can usually be assumed to be approximately force free, with electric currents flowing along the magnetic field lines. There are both observational and theoretical reasons which suggest that at least prior to an eruption the coronal magnetic field is in a nonlinear force free state. Unfortunately the computation of nonlinear force free fields is way more difficult than potential or linear force free fields and analytic solutions are not generally available. We discuss several methods which have been proposed to compute nonlinear force free fields and focus particularly on an optimization method which has been suggested recently. We compare the numerical performance of a newly developed numerical code based on the optimization method with the performance of another code based on an MHD relaxation method if both codes are applied to the reconstruction of a semi-analytic nonlinear force-free solution. The optimization method has also been tested for cases where we add random noise to the perfect boundary conditions of the analytic solution, in this way mimicking the more realistic case where the boundary conditions are given by vector magnetogram data. We find that the convergence properties of the optimization method are affected by adding noise to the boundary data and we discuss possibilities to overcome this difficulty.

T. Wiegelmann; T. Neukirch

2008-01-21T23:59:59.000Z

469

Modulational instability in wind-forced waves  

E-Print Network [OSTI]

We consider the wind-forced nonlinear Schroedinger (NLS) equation obtained in the potential flow framework when the Miles growth rate is of the order of the wave steepness. In this case, the form of the wind-forcing terms gives rise to the enhancement of the modulational instability and to a band of positive gain with infinite width. This regime is characterised by the fact that the ratio between wave momentum and norm is not a constant of motion, in contrast to what happens in the standard case where the Miles growth rate is of the order of the steepness squared.

Brunetti, Maura

2014-01-01T23:59:59.000Z

470

Rings in central-force network dynamics  

Science Journals Connector (OSTI)

The central-force network dynamics model for glasses is extended to treat networks involving small regular rings of bonds. In particular, band-limit formulas are obtained for an A2X3 glass consisting of regular puckered six-membered A3X3 rings. The special case of planar rings is compared with observations on vitreous B2O3. This continuous random network of "boroxol" rings shows improved agreement with experiment over a model not containing rings. The remaining discrepancies illustrate the need to include noncentral forces in the network dynamics of v-B2O3.

F. L. Galeener and M. F. Thorpe

1983-11-15T23:59:59.000Z

471

Renewable Electricity Futures Study. Volume 1: Exploration of High-Penetration Renewable Electricity Futures  

SciTech Connect (OSTI)

The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

Mai, T.; Wiser, R.; Sandor, D.; Brinkman, G.; Heath, G.; Denholm, P.; Hostick, D.J.; Darghouth, N.; Schlosser, A.; Strzepek, K.

2012-06-01T23:59:59.000Z

472

Robotic Assembly and Contact Force Control  

E-Print Network [OSTI]

indis- pensable in many applications, such as spot welding and painting in the automotive industryRobotic Assembly and Contact Force Control Andreas Stolt Department of Automatic Control Lund in Sweden, Lund University, Lund 2012 #12;Abstract Modern industrial robots are traditionally programmed

473

Inertial Force, Equivalence Principle and Quantum Mechanics  

E-Print Network [OSTI]

On the basis of a manifestly covariant formalism of non-relativistic quantum mechanics in general coordinate systems, proposed by us recently, we derive general expressions for inertial forces. The results enable us further to discuss, and to explain the validity of, the equivalence principle in non-relativistic quantum mechanics.

Minoru Omote; Susumu Kamefuchi

2000-05-10T23:59:59.000Z

474

Yangtze Patrol: American Naval Forces in China  

E-Print Network [OSTI]

Yangtze Patrol: American Naval Forces in China A Selected, Partially-Annotated Bibliography literature of the United States Navy in China. mvh #12;"Like Chimneys in Summer" The thousands of men who served on the China Station before World War II have been all but forgotten, except in the mythology

475

Climate-Forced Variability of Ocean Hypoxia  

Science Journals Connector (OSTI)

...mixture of local wind forcing and basin-scale circulation, but the PDO...exported to the wider Pacific basin (22, 23), yielding widespread...Oxygen in the Southern California Bight: Multidecadal trends and implications...Gentili B. , Climate-driven basin-scale decadal oscillations...

Curtis Deutsch; Holger Brix; Taka Ito; Hartmut Frenzel; LuAnne Thompson

2011-07-15T23:59:59.000Z

476

Power Capping Via Forced Idleness Anshul Gandhi  

E-Print Network [OSTI]

Power Capping Via Forced Idleness Anshul Gandhi Carnegie Mellon University anshulg@cs.cmu.edu Mor@us.ibm.com Abstract We introduce a novel power capping technique, IdleCap, that achieves higher effective server frequency for a given power constraint than existing techniques. IdleCap works by repeatedly alternating

Harchol-Balter, Mor

477

REPORT OF THE DARK ENERGY TASK FORCE  

E-Print Network [OSTI]

REPORT OF THE DARK ENERGY TASK FORCE Andreas Albrecht, University of California, Davis Gary. Suntzeff, Texas A&M University Dark energy appears to be the dominant component of the physical Universe a full understanding of the cosmic acceleration. For these reasons, the nature of dark energy ranks among

Hu, Wayne

478

Seasonal Isochronic Forcing of Lotka Volterra Equations  

Science Journals Connector (OSTI)

......paid to this phenomenon in ecological models. A few recent models...certainly affect almost all ecological processes, but certainly...1I2. This is a temporary vehicle whereby it is possible to...forcing. Thus, no convenient ecological analog (e.g., a gradient......

John Vandermeer

1996-07-01T23:59:59.000Z

479

RCP4.5: A Pathway for Stabilization of Radiative Forcing by 2100  

SciTech Connect (OSTI)

Representative Concentration Pathway (RCP) 4.5 is a scenario that stabilizes radiative forcing at 4.5 W m{sup -2} in the year 2100 without ever exceeding that value. Simulated with the Global Change Assessment Model (GCAM), RCP4.5 includes long-term, global emissions of greenhouse gases, short-lived species, and land-use-land-cover in a global economic framework. RCP4.5 was updated from earlier GCAM scenarios to incorporate historical emissions and land cover information common to the RCP process and follows a cost-minimizing pathway to reach the target radiative forcing. The imperative to limit emissions in order to reach this target drives changes in the energy system, including shifts to electricity, to lower emissions energy technologies and to the deployment of carbon capture and geologic storage technology. In addition, the RCP4.5 emissions price also applies to land use emissions; as a result, forest lands expand from their present day extent. The simulated future emissions and land use were downscaled from the regional simulation to a grid to facilitate transfer to climate models. While there are many alternative pathways to achieve a radiative forcing level of 4.5 W m{sup -2}, the application of the RCP4.5 provides a common platform for climate models to explore the climate system response to stabilizing the anthropogenic components of radiative forcing.

Thomson, Allison M.; Calvin, Katherine V.; Smith, Steven J.; Kyle, G. Page; Volke, April C.; Patel, Pralit L.; Delgado Arias, Sabrina; Bond-Lamberty, Benjamin; Wise, Marshall A.; Clarke, Leon E.; Edmonds, James A.

2011-07-29T23:59:59.000Z

480

Economic analysis of coal-fired cogeneration plants for Air Force bases  

SciTech Connect (OSTI)

The Defense Appropriations Act of 1986 requires the Department of Defense to use an additional 1,600,000 tons/year of coal at their US facilities by 1995 and also states that the most economical fuel should be used at each facility. In a previous study of Air Force heating plants burning gas or oil, Oak Ridge National Laboratory found that only a small fraction of this target 1,600,000 tons/year could be achieved by converting the plants where coal is economically viable. To identify projects that would use greater amounts of coal, the economic benefits of installing coal-fired cogeneration plants at 7 candidate Air Force bases were examined in this study. A life-cycle cost analysis was performed that included two types of financing (Air Force and private) and three levels of energy escalation for a total of six economic scenarios. Hill, McGuire, and Plattsburgh Air Force Bases were identified as the facilities with the best potential for coal-fired cogeneration, but the actual cost savings will depend strongly on how the projects are financed and to a lesser extent on future energy escalation rates. 10 refs., 11 figs., 27 tabs.

Holcomb, R.S.; Griffin, F.P.

1990-10-01T23:59:59.000Z

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


481

NYMEX Coal Futures - Energy Information Administration  

U.S. Energy Information Administration (EIA) Indexed Site

NYMEX Coal Futures Near-Month Contract Final Settlement Price 2013 NYMEX Coal Futures Near-Month Contract Final Settlement Price 2013 Data as of: December 13, 2013 | Release Date: December 16, 2013 | Next Release Date: December 30, 2013 U.S. coal exports, chiefly Central Appalachian bituminous, make up a significant percentage of the world export market and are a relevant factor in world coal prices. Because coal is a bulk commodity, transportation is an important aspect of its price and availability. In response to dramatic changes in both electric and coal industry practices, the New York Mercantile Exchange (NYMEX) after conferring with coal producers and consumers, sought and received regulatory approval to offer coal futures and options contracts. On July 12, 2001, NYMEX began trading Central Appalachian Coal futures under the QL symbol.

482

The Future of Biofuels | Department of Energy  

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

The Future of Biofuels The Future of Biofuels The Future of Biofuels Addthis Description Secretary Chu discusses why feedstock grasses such as miscanthus could be the future of biofuels. Speakers Secretary Steven Chu Duration 1:46 Topic Biofuels Bioenergy Credit Energy Department Video SECRETARY STEVEN CHU: This is a photograph of a perennial grass called miscanthus. It was grown without irrigation, without fertilizer. And in the autumn, you just shave it off. You use that to convert it to ethanol. The amount of ethanol in this particular plot of land outside the University of Illinois produces 15 times more ethanol than a similar plot of land if you grew corn, and the energy inputs are far less. So we need to develop methods in order to use these grassy, woody substances and also agricultural waste - wheat straw, rice straw, corn

483

NREL: Energy Analysis - Renewable Electricity Futures Study  

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

Renewable Electricity Futures Study Renewable Electricity Futures Study RE Futures Visualizations These visualizations are based on RE Futures modeling and represent the transformation of the U.S. electric system to a high renewable system from 2010 to 2050 and the hourly operation and transmission flow of that system in 2050. Transformation of the Electric Sector (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display the transformation of the electric sector in 2010 through 2050 Hourly Operation in 2050 (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display hourly operation in 2010 through 2050 Power Flow in 2050 (Compare to Baseline Projections) Screen capture of a dynamic map that is animated to display power flow in 2010 through 2050

484

Future trends in environmental mercury concentrations: implications  

E-Print Network [OSTI]

Future trends in environmental mercury concentrations: implications for prevention strategies interactions among natural and human climate system components; objectively assess uncertainty in economic, monitor and verify greenhouse gas emissions and climatic impacts. This reprint is one of a series intended

485

Kaons - Recent Results and Future Plans  

E-Print Network [OSTI]

Recent results and future plans of kaon physics are reviewed. Topics include CP violation, rare decays, light neutral-boson search, lepton flavor universality, and CPT and QM tests.

T. K. Komatsubara

2010-06-22T23:59:59.000Z

486

Livestock production: recent trends, future prospects  

Science Journals Connector (OSTI)

...Kenya While the Government Office for Science commissioned this review, the...systems has been associated with science and technology as well as increases...preparing for the future, office of science and innovation. See http...

2010-01-01T23:59:59.000Z

487

Future Directions in Engines and Fuels  

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

Conference Future Direction in Engines and Fuels Mobility industry Challenges - CARB GHG Scenario CARB Board hearing Dec. 2009 GHG 1 GHG 2 GHG 0 September 28, 2010 0 40 80...

488

Universality of the Future Chronological Boundary  

E-Print Network [OSTI]

The purpose of this note is to establish, in a categorical manner, the universality of the Geroch-Kronheimer-Penrose causal boundary when considering the types of causal structures that may profitably be put on any sort of boundary for a spacetime. Actually, this can only be done for the future causal boundary (or the past causal boundary) separately; furthermore, only the chronology relation, not the causality relation, is considered, and the GKP topology is eschewed. The final result is that there is a unique map, with the proper causal properties, from the future causal boundary of a spacetime onto any ``reasonable" boundary which supports some sort of chronological structure and which purports to consist of a future completion of the spacetime. Furthermore, the future causal boundary construction is categorically unique in this regard.

Steven G. Harris

1997-04-04T23:59:59.000Z

489

Complementarity of future dark energy probes  

Science Journals Connector (OSTI)

......few representative future surveys, namely Dark Energy Survey (DES), Panoramic Survey Telescope and...which are currently not deployed. The Dark Energy Survey (DES) (The Dark Energy Survey Collaboration 2005) is an optical-near-infrared......

Jiayu Tang; Filipe B. Abdalla; Jochen Weller

2011-09-21T23:59:59.000Z

490

Future gulf dynamics and US security  

SciTech Connect (OSTI)

This documental briefing synthesizes the results of a research project, entitled 'Future Security Requirements for the Gulf.' It represents an effort to pull together much of the detailed work conducted during this project and focuses on the principal factors driving the future environment in the greater Gulf region, on the implications of the resulting findings for future Gulf security and for the U.S. regional posture in the area, and on a broad examination of alternative U.S. approaches to its security in the Gulf. The overall project objective was to provide a political-military assessment of security prospects in the Gulf over the next 3 to 5 years, challenges the U.S. military are likely to encounter as they support U.S. national objectives in the region, and the broader implications for future U.S. security planning.

Nardulli, B.; Agmon, M.; Karasik, T.; Kechichian, J.A.; Morris, M.E.

1994-01-01T23:59:59.000Z

491

California's Energy Future - The View to 2050  

E-Print Network [OSTI]

California renewable portfolio could be about 75% variable resources from solar andCalifornia Public Utilities Commission CSP Concentrating solara direct solar fuels industry. Californias Energy Future -

2011-01-01T23:59:59.000Z

492

Addressing an Uncertain Future Using Scenario Analysis  

E-Print Network [OSTI]

a scenario may be an oil price hike in a future year, whichon the impact of high oil prices on the global economy (seethe scenario of a high oil price (of US$35/barrel, which is

Siddiqui, Afzal S.; Marnay, Chris

2008-01-01T23:59:59.000Z

493

The future of oil: unconventional fossil fuels  

Science Journals Connector (OSTI)

...groundwater contamination. Nevertheless, innovative solutions have been found to many of...long project lead times, environmental remediation and the future oil price. Canadian...operations, being cheaper than mining; -innovative technology; -co-generation to reduce...

2014-01-01T23:59:59.000Z

494

Our Focus is on YOUR Future  

E-Print Network [OSTI]

) EE Degree = Secure Future An EE degree from the University of Michigan will open doors to hundreds (National Association of Colleges and Employers) Prevalence of Jobs Opportunities for electrical engineers, satellites, satellite imaging, nanotechnology & nanoelectronics, new and improved medical procedures

Eustice, Ryan

495

Present and Future Alkylation Processes in Refineries  

Science Journals Connector (OSTI)

Present and Future Alkylation Processes in Refineries ... Second, an accident at a Texas refinery released considerable amounts of gaseous HF. ... In addition, following an accident, it is uncertain whether the sprays would still be operable. ...

Lyle F. Albright

2009-01-08T23:59:59.000Z

496

Biomass 2014: Growing the Future Bioeconomy  

Office of Energy Efficiency and Renewable Energy (EERE)

Register for Biomass 2014 today and dont miss your chance to take part in this important event that will help move the nation to a more secure, sustainable, and economically sound future.

497

Seminar Announcement Nanoscale High Field Chemistry with the Atomic Force Microscope and Patterning January 15, 2009  

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

SEMINAR SEMINAR ANNOUNCMENT Thursday, January 15, 2009 11:00am - 12:00 noon EMSL Boardroom Nanoscale High Field Chemistry With the Atomic Force Microscope and Patterning Marco Rolandi Assistant Professor Department of Materials Science and Engineering, University of Washington, Seattle, WA 98195 Facile and affordable processes for the fabrication of nanostructures are fundamental to future endeavors in nanoscale science and engineering. The atomic force microscope was designed primarily for imaging, and has evolved into a versatile tool for nanoscale surface modification. We have developed an AFM based scheme capable of direct writing of glassy carbon nanowires as fast as 1 cm/s. In brief, when a bias is applied across the tip-sample gap a molecular precursor undergoes high field reactions that result in the deposition of a cross- linked product on the surface. In order to gain a

498

Plus c`est la meme chose: The future of nuclear weapons in Europe  

SciTech Connect (OSTI)

Since the end of the Cold War, the United States perhaps more than any other nuclear weapon state has deeply questioned the future role of nuclear weapons, both in a strategic sense and in Europe. It is probably the United States that has raised the most questions about the continuing need for and efficacy of nuclear weapons, and has expressed the greatest concerns about the negative consequences of continuing nuclear weapons deployment. In the US, this period of questioning has now come to a pause, if not a conclusion. In late 1994 the United States decided to continue to pursue reductions in numbers of nuclear weapons as well as other changes designed to reduce the dangers associated with the possession of nuclear weapons. But at the same time the US concluded that some number of nuclear forces would continue to be needed for national security for the foreseeable future. These necessary nuclear forces include a continuing but greatly reduced stockpile of nuclear bombs deployed in Europe under NATO`s New Strategic Concept. If further changes to the US position on nuclear weapons in Europe are to occur, it is likely to be after many years, and only in the context of dramatic additional improvements in the political and geo-political climate in and around Europe. The future role of nuclear weapons in Europe, as discussed in this report, depends in part on past and future decisions by the United States. but it must also be noted that other states that deploy nuclear weapons in Europe--Britain, France, and Russia, as well as the NATO alliance--have shown little inclination to discontinue their deployment of such weapons, whatever the United States might choose to do in the future.

Maaranen, S.A.

1996-07-01T23:59:59.000Z

499

A design advisor for future CAD systems  

E-Print Network [OSTI]

A DESIGN ADVISOR FOR FUTURE CAD SYSTEMS A Thesis by SARATHY P. VIJAY Submitted to the Office of Graduate Studies of Texas AgrM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1990 Major... Subject: Mechanical Engineering A DESIGN ADVISOR FOR FUTURE CAD SYSTEMS A Thesis by SARATHY P. VIJAY Approved as to style and content by: Christian P. Burger (Chair of Committee) Peter H. Gien (Member) Thomas Linehan (Member) Walter F. B dley...

Vijay, Sarathy P.

1990-01-01T23:59:59.000Z

500

NETL: FutureGen Final EIS  

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

Home > Technologies > Coal & Power Systems > FutureGen > EIS Home > Technologies > Coal & Power Systems > FutureGen > EIS FutureGen FutureGen Project Final Environmental Impact Statement (DOE/EIS-0394) Links presented below access the individual chapters and/or full volumes of the Final FutureGen Environmental Impact Statement (DOE/EIS-0394) and related documentation. If you would like to request a hardcopy of the stand-alone summary or the entire EIS, or a CD version, please send your name and mailing address to FutureGen.EIS@netl.doe.gov. Due to the high cost of shipping the four-volume EIS (approximately 2,500 pages) and possible duties or tariffs for copies sent to locations outside the U.S., DOE encourages requestors to download the document using the links below or to request only a CD. However, if requestors are willing and able to pay the applicable duties or tariffs, DOE will send hardcopies to locations outside the U.S. Please be aware that long delays may be possible and duties or tariffs may cost $100 (USD) or more.