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Note: This page contains sample records for the topic "differences reaching double" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


1

Imaging the Soultz Enhanced Geothermal Reservoir using double-difference tomography and microseismic data  

E-Print Network [OSTI]

We applied the double-difference tomography method to image the P and S-wave velocity structure of the European Hot Dry Rock geothermal reservoir (also known as the Soultz Enhanced Geothermal System) at Soultz-sous-Forets, ...

Piñeros Concha, Diego Alvaro

2010-01-01T23:59:59.000Z

2

Carbon sequestration monitoring with acoustic double-difference waveform inversion: A case study on SACROC walkaway VSP data  

E-Print Network [OSTI]

Carbon sequestration monitoring with acoustic double-difference waveform inversion: A case study National Laboratory SUMMARY Geological carbon sequestration involves large-scale injection of carbon is crucial for ensuring safe and reliable carbon storage (Bickle et al., 2007). Conventional analysis of time

Malcolm, Alison

3

High Performance “Reach” Codes  

E-Print Network [OSTI]

Jim Edelson New Buildings Institute A Growing Role for Codes and Stretch Codes in Utility Programs Clean Air Through Energy Efficiency November 9, 2011 ESL-KT-11-11-39 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 New Buildings Institute ESL..., Nov. 7 ? 9, 2011 ?31? Flavors of Codes ? Building Codes Construction Codes Energy Codes Stretch or Reach Energy Codes Above-code programs Green or Sustainability Codes Model Codes ?Existing Building? Codes Outcome-Based Codes ESL-KT-11...

Edelson, J.

2011-01-01T23:59:59.000Z

4

Combining and comparing neutrinoless double beta decay experiments using different nuclei  

E-Print Network [OSTI]

We perform a global fit of the most relevant neutrinoless double beta decay experiments within the standard model with massive Majorana neutrinos. Using Bayesian inference makes it possible to take into account the theoretical uncertainties on the nuclear matrix elements in a fully consistent way. First, we analyze the data used to claim the observation of neutrinoless double beta decay in Ge-76, and find strong evidence (according to Jeffrey's scale) for a peak in the spectrum and moderate evidence for that the peak is actually close to the energy expected for the neutrinoless decay. We also find a significantly larger statistical error than the original analysis, which we include in the comparison with other data. Then, we statistically test the consistency between this claim with that of recent measurements using Xe-136. We find that the two data sets are about 40 to 80 times more probable under the assumption that they are inconsistent, depending on the nuclear matrix element uncertainties and the prior on the smallest neutrino mass. Hence, there is moderate to strong evidence of incompatibility, and for equal prior probabilities the posterior probability of compatibility is between 1.3% and 2.5%. If one, despite such evidence for incompatibility, combines the two data sets, we find that the total evidence of neutrinoless double beta decay is negligible. If one ignores the claim, there is weak evidence against the existence of the decay. We also perform approximate frequentist tests of compatibility for fixed ratios of the nuclear matrix elements, as well as of the no signal hypothesis. Generalization to other sets of experiments as well as other mechanisms mediating the decay is possible.

Johannes Bergstrom

2012-12-18T23:59:59.000Z

5

Double Neutron Stars: Evidence For Two Different Neutron-Star Formation Mechanisms  

E-Print Network [OSTI]

Six of the eight double neutron stars known in the Galactic disk have low orbital eccentricities (neutron stars received only very small velocity kicks at birth. This is similar to the case of the B-emission X-ray binaries, where a sizable fraction of the neutron stars received hardly any velocity kick at birth (Pfahl et al. 2002). The masses of the second-born neutron stars in five of the six low-eccentricity double neutron stars are remarkably low (between 1.18 and 1.30 Msun). It is argued that these low-mass, low-kick neutron stars were formed by the electron-capture collapse of the degenerate O-Ne-Mg cores of helium stars less massive than about 3.5 Msun, whereas the higher-mass, higher kick-velocity neutron stars were formed by the collapses of the iron cores of higher initial mass. The absence of low-velocity single young radio pulsars (Hobbs et al. 2005) is consistent with the model proposed by Podsiadlowski et al. (2004), in which the electron-capture collapse of degenerate O-Ne-Mg cores can only occur in binary systems, and not in single stars.

E. P. J. van den Heuvel

2007-04-10T23:59:59.000Z

6

Experimental energy and exergy analysis of a double-flow solar air heater having different obstacles on absorber plates  

Science Journals Connector (OSTI)

This paper presents an experimental energy and exergy analysis for a novel flat plate solar air heater (SAH) with several obstacles and without obstacles. For increasing the available heat-transfer area may be achieved if air is flowing simultaneously and separately over and under the different obstacle absorbing plates, instead of only flowing either over or under the different obstacle absorbing plates, leading to improved collector efficiency. The measured parameters were the inlet and outlet temperatures, the absorbing plate temperatures, the ambient temperature, and the solar radiation. Further, the measurements were performed at different values of mass flow rate of air and different levels of absorbing plates in flow channel duct. After the analysis of the results, the optimal value of efficiency is middle level of absorbing plate in flow channel duct for all operating conditions and the double-flow collector supplied with obstacles appears significantly better than that without obstacles. At the end of this study, the exergy relations are delivered for different SAHs. The results show that the largest irreversibility is occurring at the flat plate (without obstacles) collector in which collector efficiency is smallest.

Hikmet Esen

2008-01-01T23:59:59.000Z

7

LANL reaches waste shipment milestone  

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

LANL reaches waste shipment milestone LANL reaches waste shipment milestone LANL reaches waste shipment milestone The Lab surpassed 100,000 plutonium-equivalent curies of TRU waste shipped to WIPP, about one-third of the Lab's total. May 31, 2011 A shipment of transuranic waste on its way to the WIPP repository A shipment of transuranic waste on its way to the WIPP repository. Contact Fred deSousa Communicatons Office (505) 665-3430 Email LOS ALAMOS, New Mexico, May 31, 2011 - Los Alamos National Laboratory has reached an important milestone in its campaign to ship transuranic (TRU) waste from Cold War-era nuclear operations to the U.S. Department of Energy's Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. This month, the Lab surpassed 100,000 plutonium-equivalent curies of TRU waste shipped to WIPP, about one-third of the Lab's total.

8

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

9

Double Pair Production by Ultra High Energy Cosmic Ray Photons  

E-Print Network [OSTI]

With use of CompHEP package we've made the detailed estimate of the influence of double e+e- pair production by photons (DPP) on the propagation of ultra high energy electromagnetic cascade. We show that in the models in which cosmic ray photons energy reaches few thousand EeV refined DPP analysis may lead to substantial difference in predicted photon spectrum compared to previous rough estimates.

S. V. Demidov; O. E. Kalashev

2008-12-22T23:59:59.000Z

10

PROGRAM REACHES DIVERSE NORTH CAROLINA COMMUNITY | Department...  

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

The City of Greensboro, North Carolina, sought to reach a diverse community with energy efficiency improvements through the BetterBuildings for Greensboro Program. While all...

11

Limitations of extended reach drilling in deepwater  

E-Print Network [OSTI]

As the worldwide search for hydrocarbons continues into the deepwater of the oceans, drilling extended reach wells have helped to drain the fields in the most cost effective way, thus providing the oil and gas industry the cushion to cope...

Akinfenwa, Akinwunmi Adebayo

2012-06-07T23:59:59.000Z

12

New Stream-Reach Hydropower Development  

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

potetial within each hydrologic region and state-are published in An Assessment of Energy Potential from New Stream-reach Development in the United States and the data are publicly...

13

Physics Reach of the Beta Beam  

E-Print Network [OSTI]

Beta Beams are designed to produce pure (anti)electron neutrino beams and could be an elegant and powerful option for the search of leptonic CP violating processes. In this paper will be quantified the physics reach of a CERN based Beta Beam and of a Super Beam - Beta Beam combination. The CP phase $\\delta$ sensitivity results to be comparable to a Neutrino Factory for $\\sin^2{\\theta_{13}}$ values greater than $10^{-4}$.

Mauro Mezzetto

2003-02-07T23:59:59.000Z

14

Government Buildings CHARTING YOUR JOURNEY REACHING MILESTONES  

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

ROADMAP to Sustainable ROADMAP to Sustainable Government Buildings CHARTING YOUR JOURNEY REACHING MILESTONES ADDITIONAL RESOURCES ON THE HORIZON LEED TRAINING SUSTAINABILITY GOALS PRE-PROJECT PLANNING ROADMAP INTRODUCTION EXISTING BUILDINGS NEW CONSTRUCTION PROGRAM ADMINISTRATION GREEN BUILDING PROGRAM ACKNOWLEDGEMENT The Roadmap to Sustainable Government Buildings was created through the joint efforts of the U.S. Green Building Council (USGBC) and the National Association of State Facilities Administrators (NASFA). We extend our deepest gratitude to all of our Roadmap committee members who participated in the development of this publication, for their tireless volunteer efforts and constant support of USGBC's mission. Ongoing development of the Roadmap has been made possible through the efforts of many

15

Spallation Neutron Source reaches megawatt power  

ScienceCinema (OSTI)

The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier. "Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.

Dr. William F. Brinkman

2010-01-08T23:59:59.000Z

16

Development and Deployment of the Extended Reach Sluicing System (ERSS) for Retrieval of Hanford Single Shell Tank Waste - 14206 (DRAFT)  

SciTech Connect (OSTI)

A history of the evolution and the design development of Extended Reach Sluicer System (ERSS) is presented. Several challenges are described that had to be overcome to create a machine that went beyond the capabilities of prior generation sluicers to mobilize waste in Single Shell Tanks for pumping into Double Shell Tank receiver tanks. Off-the-shelf technology and traditional hydraulic fluid power systems were combined with the custom-engineered components to create the additional functionality of the ERSS, while still enabling it to fit within very tight entry envelope into the SST. Problems and challenges inevitably were encountered and overcome in ways that enhance the state of the art of fluid power applications in such constrained environments. Future enhancements to the ERSS design are explored for retrieval of tanks with different dimensions and internal obstacles.

Bauer, Roger E.; Figley, Reed R.; Innes, A. G.

2013-11-11T23:59:59.000Z

17

On the use of the double floating probe method to infer the difference between the electron and the heavy particles temperatures in an atmospheric pressure, vortex-stabilized nitrogen plasma jet  

SciTech Connect (OSTI)

Sweeping double probe measurements in an atmospheric pressure direct current vortex-stabilized plasma jet are reported (plasma conditions: 100 A discharge current, N{sub 2} gas flow rate of 25 Nl/min, thoriated tungsten rod-type cathode, copper anode with 5 mm inner diameter). The interpretation of the double probe characteristic was based on a generalization of the standard double floating probe formulae for non-uniform plasmas coupled to a non-equilibrium plasma composition model. Perturbations caused by the current to the probe together with collisional and thermal processes inside the probe perturbed region were taken into account. Radial values of the average electron and heavy particle temperatures as well as the electron density were obtained. The calculation of the temperature values did not require any specific assumption about a temperature relationship between different particle species. An electron temperature of 10?900 ± 900 K, a heavy particle temperature of 9300 ± 900 K, and an electron density of about 3.5 × 10{sup 22} m{sup ?3} were found at the jet centre at 3.5 mm downstream from the torch exit. Large deviations from kinetic equilibrium were found toward the outer border of the plasma jet. These results showed good agreement with those previously reported by the authors by using a single probe technique. The calculations have shown that this method is particularly useful for studying spraying-type plasma torches operated at power levels of about 15 kW.

Prevosto, L., E-mail: prevosto@waycom.com.ar; Mancinelli, B. R. [Grupo de Descargas Eléctricas, Departamento Ingeniería Electromecánica, Facultad Regional Venado Tuerto (UTN), Laprida 651, 2600 Venado Tuerto, Santa Fe (Argentina)] [Grupo de Descargas Eléctricas, Departamento Ingeniería Electromecánica, Facultad Regional Venado Tuerto (UTN), Laprida 651, 2600 Venado Tuerto, Santa Fe (Argentina); Kelly, H. [Grupo de Descargas Eléctricas, Departamento Ingeniería Electromecánica, Facultad Regional Venado Tuerto (UTN), Laprida 651, 2600 Venado Tuerto, Santa Fe (Argentina) [Grupo de Descargas Eléctricas, Departamento Ingeniería Electromecánica, Facultad Regional Venado Tuerto (UTN), Laprida 651, 2600 Venado Tuerto, Santa Fe (Argentina); Instituto de Física del Plasma (CONICET), Departamento de Física, Facultad de Ciencias Exactas y Naturales (UBA) Ciudad Universitaria Pab. I, 1428 Buenos Aires (Argentina)

2014-05-15T23:59:59.000Z

18

America's Wind Industry Reaches Record Highs | Department of...  

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

America's Wind Industry Reaches Record Highs America's Wind Industry Reaches Record Highs August 6, 2013 - 8:01am Addthis Our latest Infographic highlights key findings from the...

19

New Stream-Reach Hydropower Development Fact Sheet | Department...  

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

for new hydropower development in U.S. stream-reaches that do not currently have hydroelectric facilities or other forms of infrastructure. New Stream-Reach Development...

20

Expanded "Green Button" Will Reach Federal Agencies and More...  

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

"Green Button" Will Reach Federal Agencies and More American Energy Consumers Expanded "Green Button" Will Reach Federal Agencies and More American Energy Consumers December 6,...

Note: This page contains sample records for the topic "differences reaching double" 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

Adapting the Transmission Reach in Mixed Line Rates WDM Transport Networks  

E-Print Network [OSTI]

Adapting the Transmission Reach in Mixed Line Rates WDM Transport Networks K. Christodoulopoulos, K to support the transmission at different line rates. Previously proposed planning algorithms, have used a transmission reach limit for each modulation format/line rate, mainly driven by single line rate systems

Varvarigo, Emmanouel "Manos"

22

Neutrinoless Double Beta-Decay  

E-Print Network [OSTI]

The neutrinoless double $\\beta$-decay of nuclei is reviewed. We discuss neutrino mixing and 3x3 PMNS neutrino mixing matrix. Basic theory of neutrinoless double $\\beta$-decay is presented in some details. Results of different calculations of nuclear matrix element are discussed. Experimental situation is considered. The Appendix is dedicated to E. Majorana (brief biography and his paper in which the theory of Majorana particles is given)

S. M. Bilenky

2010-01-12T23:59:59.000Z

23

Sustainability Double Degree Double Degree Info  

E-Print Network [OSTI]

Sustainability Double Degree Double Degree Info: · 36 credits in B for graduation. Sustainability Core: Take each course below for a total of 17 -20 credits. Term/Grade Course _____ ____ *NR 350 (4) Sustainable

Grünwald, Niklaus J.

24

Both Distillate Supply and Demand Reached Extraordinary Levels This Winter  

Gasoline and Diesel Fuel Update (EIA)

6 6 Notes: This chart shows some critical differences in distillate supply and demand during this winter heating season, in comparison to the past two winters. Typically, distillate demand peaks during the winter months, but "new supply" (refinery production and net imports) cannot increase as much, so the remaining supply needed is drawn from inventories. This pattern is evident in each of the past two winter heating seasons. This winter, however, the pattern was very different, for several reasons: With inventories entering the season at extremely low levels, a "typical" winter stockdraw would have been nearly impossible, particularly in the Northeast, the region most dependent on heating oil. Demand reached near-record levels in December, as colder-than-normal

25

Wind Turbine Scaling Enables Projects to Reach New Heights |...  

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

Turbine Scaling Enables Projects to Reach New Heights Wind Turbine Scaling Enables Projects to Reach New Heights August 18, 2014 - 9:42am Addthis Turbines at the National Wind...

26

Local Impact, National Influence, Global Reach UC San Diego's  

E-Print Network [OSTI]

, Global Reach Impacting the Economy Overall Impact in San Diego County · Total economic impact of UC SanLocal Impact, National Influence, Global Reach UC San Diego's Economic Impact and Benefits in our Region and State Chancellor Marye Anne Fox #12;Local Impact, National Influence, Global Reach Economic

Russell, Lynn

27

Visual servoing for path reaching with nonholonomic robots Journal: Robotica  

E-Print Network [OSTI]

Visual servoing for path reaching with nonholonomic robots Journal: Robotica Manuscript ID: ROB these files (e.g. movies) online. VisionBasedPathReaching-Robotica.tex figure.tar.gz VisionBasedPathReaching.mp4 Proof for review onlyhal-00639659,version1-9Nov2011 Author manuscript, published in "Robotica 29

Paris-Sud XI, Université de

28

Neutrinoless double-$?$ decay in TeV scale Left-Right symmetric models  

E-Print Network [OSTI]

In this paper we study in detail the neutrinoless double beta decay in left-right symmetric models with right-handed gauge bosons at TeV scale which is within the presently accessible reach of colliders. We discuss the different diagrams that can contribute to this process and identify the dominant ones for the case where the right-handed neutrino is also at the TeV scale. We calculate the contribution to the effective mass governing neutrinoless double beta decay assuming type-I, and type-II dominance and discuss what are the changes in the effective mass due to the additional contributions. We also discuss the effect of the recent Daya-Bay and RENO measurements on $\\sin^2\\theta_{13}$ on the effective mass in different scenarios.

Joydeep Chakrabortty; H. Zeen Devi; Srubabati Goswami; Sudhanwa Patra

2012-04-11T23:59:59.000Z

29

NNSA Reaches LEU Disposal Milestone | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Reaches LEU Disposal Milestone | National Nuclear Security Reaches LEU Disposal Milestone | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > NNSA Reaches LEU Disposal Milestone NNSA Reaches LEU Disposal Milestone November 08, 2004 Aiken, SC NNSA Reaches LEU Disposal Milestone The National Nuclear Security Administration's reached an important

30

Tunable Laser Reaches Record Power Level | Jefferson Lab  

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

Tunable Laser Reaches Record Power Level July 20, 1999 Researchers at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility (Jefferson Lab) have produced...

31

Dr. Bhaskaran Gopalakrishnan Extends the Reach of the West Virginia...  

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

Center Dr. Bhaskaran Gopalakrishnan Extends the Reach of the West Virginia University Industrial Assessment Center Discussing energy audit results Dr. Bhaskaran...

32

Optic Ataxia: From Balint's Syndrome to the Parietal Reach Region  

E-Print Network [OSTI]

Neuron Review Optic Ataxia: From Balint's Syndrome to the Parietal Reach Region Richard A. Andersen@vis.caltech.edu http://dx.doi.org/10.1016/j.neuron.2014.02.025 Optic ataxia is a high-order deficit in reaching's syndrome that also includes attentional and gaze disorders. Aspects of optic ataxia are misreaching

Andersen, Richard

33

A DOUBLE-PEAKED OUTBURST OF A 0535+26 OBSERVED WITH INTEGRAL, RXTE, AND SUZAKU  

SciTech Connect (OSTI)

The Be/X-ray binary A 0535+26 showed a normal (type I) outburst in 2009 August. It is the fourth in a series of normal outbursts associated with the periastron, but is unusual because it presented a double-peaked light curve. The two peaks reached a flux of {approx}450 mCrab in the 15-50 keV range. We present results of the timing and spectral analysis of INTEGRAL, RXTE, and Suzaku observations of the outburst. The energy-dependent pulse profiles and their evolution during the outburst are studied. No significant differences with respect to other normal outbursts are observed. The centroid energy of the fundamental cyclotron line shows no significant variation during the outburst. A spectral hardening with increasing luminosity is observed. We conclude that the source is accreting in the sub-critical regime. We discuss possible explanations for the double-peaked outburst.

Caballero, I. [Laboratoire AIM, CEA/IRFU, CNRS/INSU, Universite Paris Diderot, CEA DSM/IRFU/SAp, F-91191 Gif-sur-Yvette (France); Pottschmidt, K.; Marcu, D. M. [Center for Space Science and Technology, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250 (United States); Barragan, L.; Wilms, J.; Kreykenbohm, I. [Dr. Karl Remeis-Sternwarte and ECAP, FAU Erlangen-Nuremberg, Sternwartstr. 7, D-96049 Bamberg (Germany); Ferrigno, C. [ISDC Data Centre for Astrophysics, University of Geneva, Chemin d'Ecogia 16, CH-1290 Versoix (Switzerland); Klochkov, D.; Suchy, S.; Santangelo, A.; Staubert, R. [Institut fuer Astronomie und Astrophysik, Sand 1, D-72076 Tuebingen (Germany); Zurita Heras, J. A. [Francois Arago Centre, APC (UMR 7164 Universite Paris Diderot, CNRS/IN2P3, CEA/DSM, Observatoire de Paris), 13 rue Watt, F-75205 Paris Cedex 13 (France); Kretschmar, P. [European Space Astronomy Centre (ESA/ESAC), Science Operations Department, Villanueva de la Canada, E-28080 Madrid (Spain); Fuerst, F. [Space Radiation Lab, California Institute of Technology, MC 290-17 Cahill, 1200 E. California Blvd., Pasadena, CA 91125 (United States); Rothschild, R. [Center for Astrophysics and Space Science, UCSD, La Jolla, CA 92093 (United States); Finger, M. H. [National Space Science and Technology Center, 320 Sparkman Drive NW, Huntsville, AL 35805 (United States); Camero-Arranz, A. [Institut de Ciencies de l'Espai (IEEC-CSIC), Campus UAB, Fac. de Ciencies, Torre C5, parell, 2a planta, E-08193 Barcelona (Spain); Makishima, K. [Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033 (Japan); Enoto, T. [Cosmic Radiation Laboratory, RIKEN, 2-1, Hirosawa, Wako City, Saitama 351-0198 (Japan); Iwakiri, W., E-mail: isabel.caballero@cea.fr [Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura, Saitama 338-8570 (Japan); and others

2013-02-20T23:59:59.000Z

34

Five More States Reach Major Recovery Act Weatherization Milestone |  

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

Five More States Reach Major Recovery Act Weatherization Milestone Five More States Reach Major Recovery Act Weatherization Milestone Five More States Reach Major Recovery Act Weatherization Milestone June 18, 2010 - 12:00am Addthis WASHINGTON - The U.S. Department of Energy announced today that five more states have reached a significant milestone under the American Recovery and Reinvestment Act - completing weatherization work for more than 30 percent of the homes they have planned. Now that New Hampshire, New Mexico, Montana, Minnesota, and Utah have each met this target, along with completing a series of monitoring and reporting milestones, the states will have access to the remaining 50 percent of their Recovery Act funding for the program. The Weatherization Assistance Program under the Recovery Act has weatherized more than 108,000 homes nationally, saving American

35

Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark  

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

Landfill Reaches 15 Million Tons Disposed - Waste Disposal Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark Shows Success Cleaning Up River Corridor Hanford Landfill Reaches 15 Million Tons Disposed - Waste Disposal Mark Shows Success Cleaning Up River Corridor July 9, 2013 - 12:00pm Addthis Media Contacts Cameron Hardy, DOE, (509) 376-5365 Cameron.Hardy@rl.doe.gov Mark McKenna, WCH, (509) 372-9032 media@wch-rcc.com RICHLAND, Wash. - The U.S. Department of Energy (DOE) and its contractors have disposed of 15 million tons of contaminated material at the Environmental Restoration Disposal Facility (ERDF) since the facility began operations in 1996. Removing contaminated material and providing for its safe disposal prevents contaminants from reaching the groundwater and the Columbia River. ERDF receives contaminated soil, demolition debris, and solid waste from

36

Five More States Reach Major Recovery Act Weatherization Milestone |  

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

Five More States Reach Major Recovery Act Weatherization Milestone Five More States Reach Major Recovery Act Weatherization Milestone Five More States Reach Major Recovery Act Weatherization Milestone June 18, 2010 - 12:00am Addthis WASHINGTON - The U.S. Department of Energy announced today that five more states have reached a significant milestone under the American Recovery and Reinvestment Act - completing weatherization work for more than 30 percent of the homes they have planned. Now that New Hampshire, New Mexico, Montana, Minnesota, and Utah have each met this target, along with completing a series of monitoring and reporting milestones, the states will have access to the remaining 50 percent of their Recovery Act funding for the program. The Weatherization Assistance Program under the Recovery Act has weatherized more than 108,000 homes nationally, saving American

37

Reach Survival Estimates, 2008 Bill Muir, Steve Smith, Doug Marsh,  

E-Print Network [OSTI]

Reach Survival Estimates, 2008 Bill Muir, Steve Smith, Doug Marsh, John Williams, and Jim Faulkner Grand Coulee McNary IceHarbor LittleGoose LowerGranite LowerMonumental Juvenile detectors Snake R. trap

38

Nalco and Argonne reach licensing agreement covering resin wafer technology  

Science Journals Connector (OSTI)

In the USA, Nalco Co has reached a licensing agreement with the US Department of Energy's (DOE) Argonne National Laboratory, covering its resin wafer electrodeionisation (RW-EDI) technology.

2011-01-01T23:59:59.000Z

39

New Stream-reach Development (NSD) Fact Sheet  

Broader source: Energy.gov [DOE]

This fact sheet explores the more than 65 gigawatts (GW) of sustainable hydropower potential in U.S. stream-reaches, according to the hydropower resource assessment funded by DOE and executed by Oak Ridge National Laboratory.

40

THOMASSIN et al.: IDENTIFICATION OF A RIVER REACH BY A BAYESIAN APPROACH 1 Identification of a Managed River Reach  

E-Print Network [OSTI]

-delay estimation, of a river reach managed to produce hydroelectric power. Difficulties lie in the obligation risks or fall-off in hydroelectric power production, the implementation of experimental protocols

Boyer, Edmond

Note: This page contains sample records for the topic "differences reaching double" 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

EcoCAR Reaches the Finish Line | Department of Energy  

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

EcoCAR Reaches the Finish Line EcoCAR Reaches the Finish Line EcoCAR Reaches the Finish Line June 21, 2011 - 2:09pm Addthis The EcoCAR Challenege is a competition that challenges participating students from across North America to re-engineer a vehicle donated by General Motors. With the goal of minimizing the vehicle's fuel consumption and emissions, while maintaining its utility, safety and performance, teams had to find the best combination of cutting-edge technologies to meet these objectives. Shannon Brescher Shea Communications Manager, Clean Cities Program Last Thursday, the Library of Congress's vaunted halls were filled with undergraduate and graduate students on the edge of their seats, waiting to hear the first place winner of the EcoCAR: The NeXt Challenge competition. As Patrick Davis, Vehicle Technologies Program Manager for the Department

42

Hoover Police Fleet Reaches Alternative Fuel Milestone | Department of  

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

Hoover Police Fleet Reaches Alternative Fuel Milestone Hoover Police Fleet Reaches Alternative Fuel Milestone Hoover Police Fleet Reaches Alternative Fuel Milestone June 25, 2010 - 3:51pm Addthis Mayor Petelos and Senator Jeff Sessions filling up a Hoover Police Tahoe with certified fuel made from Hoover's very own wood-waste last year. | Photo courtesy of Lori Salter | Mayor Petelos and Senator Jeff Sessions filling up a Hoover Police Tahoe with certified fuel made from Hoover's very own wood-waste last year. | Photo courtesy of Lori Salter | Lindsay Gsell When Tony Petelos became the mayor of Hoover, Alabama in 2004, the police fleet was run down. Within the next year, Petelos, with support from the community, called for a big change: switch out the old police fleet with new, flexible-fueled vehicles. Flexible-fueled vehicles are specially designed to run on gasoline or any

43

SRS Recovery Act Program Reaches $1 Billion Mark: Investments Accelerate  

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

Recovery Act Program Reaches $1 Billion Mark: Investments Recovery Act Program Reaches $1 Billion Mark: Investments Accelerate Cleanup; Support Jobs, Training and Local Economy SRS Recovery Act Program Reaches $1 Billion Mark: Investments Accelerate Cleanup; Support Jobs, Training and Local Economy March 2, 2011 - 12:00pm Addthis Media Contacts Jim Giusti, DOE (803) 952-7697 james-r.giusti@srs.gov Paivi Nettamo, SRNS (803) 292-2484 paivi.nettamo@srs.gov John Lindsay, SRR (803) 208-6253 john02lindsay@srs.gov AIKEN, S.C. - In 22 short months, the Savannah River Site (SRS) has spent $1 billion in American Recovery and Reinvestment Act funds to accelerate environmental cleanup of the remaining Cold War legacy, while supporting jobs, training and small businesses in our region. This funding milestone has resulted in 122 square miles of actual footprint reduction at SRS,

44

DOE Reaches $1.9M Settlement | Department of Energy  

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

Reaches $1.9M Settlement Reaches $1.9M Settlement DOE Reaches $1.9M Settlement September 30, 2013 - 3:19pm Addthis The General Counsel's enforcement office settled an enforcement action against Ningbo Hicon International Industry Company, Ltd. for $1,927,097. Ningbo Hicon is a Chinese company that manufactures consumer refrigeration products for a variety of private labelers. Ningbo Hicon agreed to the settlement after manufacturing and distributing chest freezers that consumed about 30% more energy than permitted under the appliance energy conservation standards. This settlement reflects the second largest penalty since the enforcement office was created in 2010. Addthis Related Articles Midea Agrees to Pay $4.5M for Four Models that Fail to Meet Federal Energy Standards DOE Collects Civil Penalties for Failure to Certify

45

Salt Waste Contractor Reaches Contract Milestone | Department of Energy  

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

Salt Waste Contractor Reaches Contract Milestone Salt Waste Contractor Reaches Contract Milestone Salt Waste Contractor Reaches Contract Milestone April 29, 2013 - 12:00pm Addthis Robert Brown, SRR tank farm operator, performs daily inspections of a salt disposition process facility. The inspections and improvement upgrades have resulted in continued successful operations. Robert Brown, SRR tank farm operator, performs daily inspections of a salt disposition process facility. The inspections and improvement upgrades have resulted in continued successful operations. AIKEN, S.C. - The liquid waste cleanup contractor for the EM program at the Savannah River Site (SRS) recently surpassed a 2013 contract milestone by processing more than 600,000 gallons of salt waste. Savannah River Remediation (SRR) salt disposition process facilities

46

Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun |  

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

Challenge: Empowering Innovators to Reach for the Sun Challenge: Empowering Innovators to Reach for the Sun Rooftop Solar Challenge: Empowering Innovators to Reach for the Sun November 6, 2013 - 8:00am Addthis Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by Sarah Gerrity. Checkout the infogaphic for an overview of the first round of the Rooftop Solar Challenge. | Infographic by Sarah Gerrity. Minh Le Minh Le Program Manager, Solar Program Cyrus Wadia Assistant Director for Clean Energy and Materials R&D, The White House Office of Science and Technology Policy LEARN MORE Stay up to date on the Department's solar energy initiatives by visiting energy.gov/solar. View guidebooks, education curricula and other resources developed

47

MOAB PROJECT REACHES SIGNIFICANT MILESTONE | Department of Energy  

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

MOAB PROJECT REACHES SIGNIFICANT MILESTONE MOAB PROJECT REACHES SIGNIFICANT MILESTONE MOAB PROJECT REACHES SIGNIFICANT MILESTONE August 1, 2011 - 12:00pm Addthis View of the mill tailings pile at the MOAB site, looking east. View of the mill tailings pile at the MOAB site, looking east. The day crew at the Crescent Junction Disposal site stands in front of the container carrying the 4 millionth ton of mill tailings from the Moab site. The day crew at the Crescent Junction Disposal site stands in front of the container carrying the 4 millionth ton of mill tailings from the Moab site. View of the mill tailings pile at the MOAB site, looking east. The day crew at the Crescent Junction Disposal site stands in front of the container carrying the 4 millionth ton of mill tailings from the Moab site. Moab, UT - One quarter of the uranium mill tailings pile located in Moab,

48

Clean Cities Reaches Across the Sea | Department of Energy  

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

Clean Cities Reaches Across the Sea Clean Cities Reaches Across the Sea Clean Cities Reaches Across the Sea May 27, 2011 - 3:31pm Addthis Dennis A. Smith Director, National Clean Cities Countries across the globe have a diversity of languages, cultures, and economics. But there's one thing most of us share that we'd rather not -- a dependence on petroleum. Just as the U.S. Department of Energy is working to increase energy independence and transportation choices, other countries are trying to do the same. From the Clean Energy Ministerial to the U.S. China Clean Energy Research Center, the Department is working with scientists and policymakers worldwide to accomplish our mutual goals. The Vehicle Technologies Program's Clean Cities initiative is also working to share lessons learned from shifting America towards more sustainable forms of

49

EcoCAR Reaches the Finish Line | Department of Energy  

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

Reaches the Finish Line Reaches the Finish Line EcoCAR Reaches the Finish Line June 21, 2011 - 2:09pm Addthis The EcoCAR Challenege is a competition that challenges participating students from across North America to re-engineer a vehicle donated by General Motors. With the goal of minimizing the vehicle's fuel consumption and emissions, while maintaining its utility, safety and performance, teams had to find the best combination of cutting-edge technologies to meet these objectives. Shannon Brescher Shea Communications Manager, Clean Cities Program Last Thursday, the Library of Congress's vaunted halls were filled with undergraduate and graduate students on the edge of their seats, waiting to hear the first place winner of the EcoCAR: The NeXt Challenge competition. As Patrick Davis, Vehicle Technologies Program Manager for the Department

50

Clean Cities Reaches Across the Sea | Department of Energy  

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

Cities Reaches Across the Sea Cities Reaches Across the Sea Clean Cities Reaches Across the Sea May 27, 2011 - 3:31pm Addthis Dennis A. Smith Director, National Clean Cities Countries across the globe have a diversity of languages, cultures, and economics. But there's one thing most of us share that we'd rather not -- a dependence on petroleum. Just as the U.S. Department of Energy is working to increase energy independence and transportation choices, other countries are trying to do the same. From the Clean Energy Ministerial to the U.S. China Clean Energy Research Center, the Department is working with scientists and policymakers worldwide to accomplish our mutual goals. The Vehicle Technologies Program's Clean Cities initiative is also working to share lessons learned from shifting America towards more sustainable forms of

51

America's Wind Industry Reaches Record Highs | Department of Energy  

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

America's Wind Industry Reaches Record Highs America's Wind Industry Reaches Record Highs America's Wind Industry Reaches Record Highs August 6, 2013 - 8:01am Addthis Our latest Infographic highlights key findings from the 2012 Wind Technologies Market Report. | Infographic by Sarah Gerrity. Our latest Infographic highlights key findings from the 2012 Wind Technologies Market Report. | Infographic by Sarah Gerrity. Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy LEARN MORE Watch our new video highlighting the latest U.S. wind industry trends. See our press release on the Energy Department's two new reports highlighting the record-breaking growth of America's wind power market. Check out our new page: energy.gov/windreport. Today, the Energy Department released two new reports highlighting record

52

DOE Reaches Agreement with LG Electronics, USA, On Refrigerator Energy  

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

Reaches Agreement with LG Electronics, USA, On Refrigerator Reaches Agreement with LG Electronics, USA, On Refrigerator Energy Matter DOE Reaches Agreement with LG Electronics, USA, On Refrigerator Energy Matter November 14, 2008 - 4:47pm Addthis ENERGY STAR® Program Continues to Help American Consumers Make Energy Efficient Choices WASHINGTON - The U.S. Department of Energy (DOE) today announced an agreement with LG Electronics, USA, Inc. (LG), resolving concerns related to energy usage measurements reported on LG French Door refrigerators with through-the-door ice and water service. The ENERGY STAR® program helps American consumers make energy efficient choices, saving billions of dollars while protecting the environment by using identified energy efficient products and practices. "DOE believes that the actions LG plans to take will benefit consumers and

53

SRS Recovery Act Program Reaches $1 Billion Mark: Investments Accelerate  

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

SRS Recovery Act Program Reaches $1 Billion Mark: Investments SRS Recovery Act Program Reaches $1 Billion Mark: Investments Accelerate Cleanup; Support Jobs, Training and Local Economy SRS Recovery Act Program Reaches $1 Billion Mark: Investments Accelerate Cleanup; Support Jobs, Training and Local Economy March 2, 2011 - 12:00pm Addthis Media Contacts Jim Giusti, DOE (803) 952-7697 james-r.giusti@srs.gov Paivi Nettamo, SRNS (803) 292-2484 paivi.nettamo@srs.gov John Lindsay, SRR (803) 208-6253 john02lindsay@srs.gov AIKEN, S.C. - In 22 short months, the Savannah River Site (SRS) has spent $1 billion in American Recovery and Reinvestment Act funds to accelerate environmental cleanup of the remaining Cold War legacy, while supporting jobs, training and small businesses in our region. This funding milestone has resulted in 122 square miles of actual footprint reduction at SRS,

54

Handling Temperature Bursts Reaching 464°C: Different Microbial Strategies in the Sisters Peak Hydrothermal Chimney  

Science Journals Connector (OSTI)

...exist and include efficient repair systems, reverse gyrase...include a high degree of mismatch repair and homologous recombination...overview of the upstream analysis pipeline is available in Fig. S1A in...of the downstream analysis pipeline is available in Fig. S1B in...

Mirjam Perner; Giorgio Gonnella; Stefan Kurtz; Julie LaRoche

2014-05-16T23:59:59.000Z

55

RESEARCH ARTICLE Vestibular contribution to the planning of reach trajectories  

E-Print Network [OSTI]

. We investigated whether the nervous system uses vestibular signals of head rotation to predict°/s in yaw for 2 min and then stopping, and subjects reached during the `post-rotary' period when the deceleration is interpreted by the vestibular system as a rotation in the opposite direction. Arm trajectories

Haslwanter, Thomas

56

Discovery Mass Reach for Excited Quarks at Hadron Colliders  

E-Print Network [OSTI]

If quarks are composite particles then excited states are expected. We estimate the discovery mass reach as a function of integrated luminosity for excited quarks decaying to dijets at the Tevatron, LHC, and a Very Large Hadron Collider (VLHC). At the Tevatron the mass reach is 0.94 TeV for Run II (2 fb^-1) and 1.1 TeV for TeV33 (30 fb^-1). At the LHC the mass reach is 6.3 TeV for 100 fb^-1. At a VLHC with a center of mass energy, sqrt(s), of 50 TeV (200 TeV) the mass reach is 25 TeV (78 TeV) for an integrated luminosity of 10^4 fb^-1. However, an excited quark with a mass of 25 TeV would be discovered at a hadron collider with sqrt(s)=100 TeV and an integrated luminosity of 13 fb^-1, illustrating a physics example where a factor of 2 in machine energy is worth a factor of 1000 in luminosity.

Robert M. Harris

1996-09-11T23:59:59.000Z

57

New Stream-reach Development (NSD) Final Report  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy (DOE) Water Power Program tasked Oak Ridge National Laboratory with evaluating the new stream-reach development (NSD) resource potential of more than 3 million U.S. streams in order to help individuals and organizations evaluate the feasibility of developing new hydropower sources in the United States.

58

Japan, EU reach basic agreement over ITER The Yomiuri Shimbun  

E-Print Network [OSTI]

Japan, EU reach basic agreement over ITER The Yomiuri Shimbun The government and the European Union to the unsuccessful candidate country. Japan and France, the EU's candidate, have been bidding to host the facility bidder's country. The ITER project participants--Japan, China, the EU, Russia, South Korea and the United

59

MHK Projects/Third Reach District | Open Energy Information  

Open Energy Info (EERE)

Reach District Reach District < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","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":29.9538,"lon":-90.0292,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

60

WIPP Reaches Milestone „ First Disposal Room Filled  

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

WIPP Reaches Milestone - First Disposal Room Filled CARLSBAD, N.M., September 4, 2001 - The U.S. Department of Energy's (DOE) Carlsbad Field Office today announced that Room 7 of Panel 1 at the Waste Isolation Pilot Plant (WIPP), the first underground room used for disposal operations, has been filled to capacity with transuranic waste. The milestone was reached at about 3:30 p.m. on August 24, as Waste Handling personnel emplaced a shipment of waste from the Idaho National Engineering and Environmental Laboratory. On August 25, Underground Operations personnel completed installation of a chain link mesh barrier and cloth drape across the entrance to the room to officially declare the area "closed." The first shipment of waste, which came

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61

MHK Projects/Helena Reach Project | Open Energy Information  

Open Energy Info (EERE)

Helena Reach Project Helena Reach Project < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","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":34.5795,"lon":-90.5722,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

62

Reaching for answers to questions about the heart  

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

Reaching for answers to questions about the heart Reaching for answers to questions about the heart Michael Reedy (Duke University) and Tanya Bekyarova (Illinois Institute of Technology) in action on the Bio-CAT beamline 18-ID at the U.S. Department of Energy's Advanced Photon Source (APS), Argonne National Laboratory. They are studying mechanisms of stretch activation in insect flight muscle. Stretch activation is very important in human heart muscle when contraction of one part of the heart stretches adjacent muscle tissue causing it to respond a moment later by generating more force aiding cardiac "ejection," i.e., the amount of blood pumped per beat. Muscle structure and function can be studied using high-brilliance x-ray beams, such as those produced by the APS, and the experimental technique time-resolved small-angle fiber

63

Search for Neutrinoless Double-Beta Decay  

E-Print Network [OSTI]

After the pioneering work of the Heidelberg-Moscow (HDM) and International Germanium Experiment (IGEX) groups, the second round of neutrinoless double-$\\beta$ decay searches currently underway has or will improve the life-time limits of double-$\\beta$ decay candidates by a factor of two to three, reaching in the near future the $T_{1/2} = 3 \\times 10^{25}$ yr level. This talk will focus on the large-scale experiments GERDA, EXO-200, and KamLAND-Zen, which have reported already lower half-life time limits in excess of $10^{25}$ yr. Special emphasis is given to KamLAND-Zen, which is expected to approach the inverted hierarchy regime before future 1-ton experiments probe completely this life-time or effective neutrino-mass regime, which starts at $\\approx 2 \\times 10^{26}$ yr or $\\approx 50$ meV.

Tornow, Werner

2014-01-01T23:59:59.000Z

64

Neutrinoless Double $?$-Decay  

E-Print Network [OSTI]

The neutrinoless double $\\beta$-decay is reviewed. Model independent evidence in favor of neutrino masses and mixing is briefly summarized. The data of the recent experiments on the search for $0\

S. M. Bilenky

2004-03-23T23:59:59.000Z

65

Physics Reach of Electron-Capture Neutrino Beams  

E-Print Network [OSTI]

To complete the picture of neutrino oscillations two fundamental parameters need to be measured, theta13 and delta. The next generation of long baseline neutrino oscillation experiments -superbeams, betabeams and neutrino factories- indeed take aim at measuring them. Here we explore the physics reach of a new candidate: an electron-capture neutrino beam. Emphasis is made on its feasibility thanks to the recent discovery of nuclei that decay fast through electron capture, and on the interplay with a betabeam (its closest relative).

J. Bernabeu; J. Burguet-Castell; C. Espinoza; M. Lindroos

2005-10-21T23:59:59.000Z

66

Double Beta Decay  

E-Print Network [OSTI]

The motivation, present status, and future plans of the search for the neutrinoless double beta decay are reviewed. It is argued that, motivated by the recent observations of neutrino oscillations, there is a reasonable hope that neutrinoless double beta decay corresponding to the neutrino mass scale suggested by oscillations, of about 50 meV, actually exists. The challenges to achieve the sensitivity corresponding to this mass scale, and plans to overcome them, are described.

Steven R. Elliott; Petr Vogel

2002-02-27T23:59:59.000Z

67

Defining a controller architecture for the Long-Reach Manipulator  

SciTech Connect (OSTI)

To draft a procurement specification for the Long-Reach Manipulator (LRM), the benefits and limitations of the various robotic control system architectures available need to be determined. This report identifies and describes the advantages and potential disadvantages of using an open control system versus a closed (or proprietary) system, focusing on integration of interfaces for sensors, end effectors, tooling, and operator interfaces. In addition, the various controls methodologies of several recent systems are described. Finally, the reasons behind the recommendation to procure an open control system are discussed.

Ford, W.E. [Sandia National Labs., Albuquerque, NM (United States). Intelligent Systems Dept. III

1994-06-01T23:59:59.000Z

68

Energy Reduction Projects to Help Nissan Reach BBBP Goals  

E-Print Network [OSTI]

Energy Reduction Projects to Help Nissan Reach BBBP Goals Brett Rasmussen, PE, CEM Senior Energy Engineer Nissan North America May 23, 2013 ESL-IE-13-05-38 Proceedings of the Thrity-Fifth Industrial Energy Technology Conference New Orleans..., LA. May 21-24, 2013 ? ? ? Smyrna, TN Decherd, TN Canton, MS NISSAN?S U.S. PLANTS 2 ESL-IE-13-05-38 Proceedings of the Thrity-Fifth Industrial Energy Technology Conference New Orleans, LA. May 21-24, 2013 Bill Kruger Signs the Save Energy Now...

Rasmussen, B.

2013-01-01T23:59:59.000Z

69

An optically trapped mirror for reaching the standard quantum limit  

E-Print Network [OSTI]

The preparation of a mechanical oscillator driven by quantum back-action is a fundamental requirement to reach the standard quantum limit (SQL) for force measurement, in optomechanical systems. However, thermal fluctuating force generally dominates a disturbance on the oscillator. In the macroscopic scale, an optical linear cavity including a suspended mirror has been used for the weak force measurement, such as gravitational-wave detectors. This configuration has the advantages of reducing the dissipation of the pendulum (i.e., suspension thermal noise) due to a gravitational dilution by using a thin wire, and of increasing the circulating laser power. However, the use of the thin wire is weak for an optical torsional anti-spring effect in the cavity, due to the low mechanical restoring force of the wire. Thus, there is the trade-off between the stability of the system and the sensitivity. Here, we describe using a triangular optical cavity to overcome this limitation for reaching the SQL. The triangular cavity can provide a sensitive and stable system, because it can optically trap the mirror's motion of the yaw, through an optical positive torsional spring effect. To show this, we demonstrate a measurement of the torsional spring effect caused by radiation pressure forces.

Nobuyuki Matsumoto; Yuta Michimura; Yoichi Aso; Kimio Tsubono

2014-05-19T23:59:59.000Z

70

CP-violation reach of an electron capture neutrino beam  

E-Print Network [OSTI]

This article extends the work of Bernabeu and Espinoza by examining the CP-violation reach of a $^{150}$Dy electron capture beam through the variation of the two Lorentz boosts, the number of useful electron capture decays, the relative run time of each boost and the number of atmospheric backgrounds. The neutrinos are assumed to be sourced at CERN with an upgraded SPS and are directed towards a 440 kton Water Cerenkov detector located at the Canfranc laboratory. Two large `CP-coverage' choices for the boost pairings are found; a $\\delta$-symmetrical coverage for $(\\gamma_{1}, \\gamma_{2})$ = (280, 160) and an $\\delta$-asymmetric coverage for $(\\gamma_{1}, \\gamma_{2})$ = (440,150). With a nominal useful decay rate of $N_{\\rm ions} = 10^{18}$ ions per year, the $\\delta$-symmetric setup can rule out CP-conservation down to $\\sin^{2}2\\theta_{13} = 3\\cdot 10^{-4}$. To reach $\\sin^{2}2\\theta_{13} = 1\\cdot 10^{-3}$ for both $\\delta 0$ requires a useful decay rate of $N_{\\rm ions} = 6\\cdot 10^{17}$ ions per year.

Christopher Orme

2010-07-12T23:59:59.000Z

71

Reaching the hip-hop generation: Final (symposium proceedings) report  

SciTech Connect (OSTI)

The goal of this final (closing) report is to capture the flavor of the symposium held March 1 and 2, 1993 in New York City convened by Motivational Educational Entertainment, Inc. (MEE), a black-owned communications research, consulting, and video production company based in Philadelphia, Pennsylvania. The mission of MEE is to understand, reach, and positively affect inner-city youth. Traditional communication approaches from mainstream sources to at-risk youth often don`t account for the unique way youth communicate among themselves and how they relate to the media. This understanding, however, is crucial. To understand youth communication, the people who create and send both entertaining and educational messages to urban youth must be brought into the dialogue. The meeting in New York was intended to provide an important opportunity for senders to meet and evaluate the appropriateness and effectiveness of their messages. In addition, the MEE symposium provided a forum for the continuing public debate about what needs to be done to reach today`s urban teens. Included in this document is a description of symposium goals/objectives, symposium activities, the reaction to and analysis of the symposium, recommendations for future MEE courses of action, and an appendix containing copies of press articles.

Not Available

1993-05-01T23:59:59.000Z

72

Neutrinoless double beta decay search with the NEMO 3 experiment  

Science Journals Connector (OSTI)

The NEMO 3 experiment searches for neutrinoless double beta decay and makes precision measurements of two?neutrino double beta decay in seven isotopes. The latest two?neutrino half?life results are presented together with the limits on neutrinoless half?lives and the corresponding effective Majorana neutrino masses. Also given are the limits obtained on neutrinoless double beta decay mediated by R p ?violating SUSY right?hand currents and different Majoron emission modes.

Irina Nasteva; NEMO collaboration

2008-01-01T23:59:59.000Z

73

Milestone reached: Waste shipment leaves Los Alamos National Laboratory  

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

Waste shipment leaves LANL Waste shipment leaves LANL Milestone reached: Waste shipment leaves Los Alamos National Laboratory The material, known as "remote-handled transuranic waste" (RH-TRU), has been stored at the Laboratory since 1995. June 2, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

74

DOE Idaho site reaches 20-year cleanup milestone  

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

IDAHO FALLS, IDAHO, 83403 IDAHO FALLS, IDAHO, 83403 Media Contact: Brad Bugger (208) 526-0833 For Immediate Release: January 19, 2012 DOE Idaho site reaches 20-year cleanup milestone IDAHO FALLS, ID- In two decades of Superfund cleanup work, the U.S. Department of Energy's Idaho site has removed hundreds of thousands of cubic yards of radioactive and hazardously contaminated soils, excavated radioactive waste buried since the 1950s, removed three nuclear reactors and hundreds of buildings, completely closed three major nuclear facilities and removed thousands of unexploded ordnance shells and fragments. Last month marked the 20-year anniversary of the signing and implementation of a cleanup agreement between DOE, the U.S. Environmental Protection Agency and the state of Idaho. In two decades, the cleanup agreement known

75

Construction on Pantex High Explosives Pressing Facility Reaches 85% Mark |  

National Nuclear Security Administration (NNSA)

Media Room > Press Releases > Construction on Pantex High Explosives Media Room > Press Releases > Construction on Pantex High Explosives Pressing Facility ... Press Release Construction on Pantex High Explosives Pressing Facility Reaches 85% Mark Dec 16, 2013 Project on time, under budget and scheduled to be completed next summer WASHINGTON, D.C. - Work on the National Nuclear Security Administration's (NNSA) High Explosives Pressing Facility at its Pantex Plant, located near Amarillo, Texas, this month passed the 85 percent construction completion mark and is on schedule and under budget. The new 45,000 square-foot state-of-the-art facility will provide safer, more reliable production by consolidating high explosives operations from numerous buildings and greatly reducing the movement of high explosives within the plant. High explosives are a key component of a nuclear weapon,

76

Reach the Bottom Line of the Sbottom Search  

SciTech Connect (OSTI)

We propose a new search strategy for directly-produced sbottoms at the LHC with a small mass splitting between the sbottom and its decayed stable neutralino. Our search strategy is based on boosting sbottoms through an energetic initial state radiation jet. In the final state, we require a large missing transverse energy and one or two b-jets besides the initial state radiation jet. We also define a few kinematic variables to further increase the discovery reach. For the case that the sbottom mainly decays into the bottom quark and the stable neutralino, we have found that even for a mass splitting as small as 10 GeV sbottoms with masses up to around 400 GeV can be excluded at the 95% confidence level with 20 inverse femtobarn data at the 8 TeV LHC.

Alvarez, Ezequiel; Bai, Yang

2012-05-22T23:59:59.000Z

77

Construction on Pantex High Explosives Pressing Facility Reaches 85% Mark |  

National Nuclear Security Administration (NNSA)

Field Offices > Welcome to the NNSA Production Office > NPO Press Field Offices > Welcome to the NNSA Production Office > NPO Press Releases > Construction on Pantex High Explosives Pressing Facility ... Construction on Pantex High Explosives Pressing Facility Reaches 85% Mark January 3, 2014 Work on the National Nuclear Security Administration's (NNSA) High Explosives Pressing Facility at its Pantex Plant, located near Amarillo, Texas, this month passed the 85 percent construction completion mark and is on schedule and under budget. Download Press Release Facebook Twitter Youtube Flickr General Information NPO Press Releases Public Contact Us Mission Links NEPA Reading Room NPO Press Releases January 2014 (1) March 2013 (1) January 2013 (2) October 2012 (1) September 2012 (1) July 2012 (1) June 2012 (3) April 2012 (1) March 2012 (1)

78

Review: The Hanford Reach: A Land of Contrasts by Susan Zwinger and Stamford D. Smith  

E-Print Network [OSTI]

Review: The Hanford Reach: A Land of Contrasts By SusanSmith (Photographer).The Hanford Reach: A Land of Contrasts.addition. Simply put, The Hanford Reach: A Land of Contrasts

Sowards, Adam M.

2007-01-01T23:59:59.000Z

79

The fabrication of double shell targets for NOVA  

SciTech Connect (OSTI)

At scales appropriate to the National Ignition Facility, calculations indicate double shell capsules reach ignition conditions with room temperature fuel. Los Alamos is laying the groundwork for these double shell ignition targets with a preliminary campaign on Nova. The target design features a 260 {micro}m O.D. inner glass capsule with an I.D. of approximately 200 {micro}m, containing deuterium gas, centered inside a machined polymer shell. The central capsule was supported either with a 30 mg/cc foam or with two polymer films, each less than 0.1 {micro}m in thickness. The materials, machining, assembly, and characterization of the targets are discussed.

Duke, J.R.; Elliott, N.E.; Moore, J.E.; Gomez, V.M.; Manzanares, R.; Rivera, G.; Watt, R.; Varnum, W.S.; Gobby, P.L. [Los Alamos National Lab., NM (United States)

1999-03-01T23:59:59.000Z

80

Double-Skin Façades  

Science Journals Connector (OSTI)

The double-skin façade is a system that consists of two building skins separated by a ventilated cavity (Fig. 9.1). The main aim of the cavity is to vary the physical properties of the façade throughout the ye...

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

DOUBLE MAJORS Imaging Science + ...  

E-Print Network [OSTI]

DOUBLE MAJORS Imaging Science + ... Applied Mathematics Biomedical Sciences Computer Science Undergraduate Research Internships and Cooperative Education (Co-op) (optional) Study Abroad WHY IMAGING SCIENCE Science: BS, MS, PhD Color Science: MS, PhD BS + MS/PhD Combos HUMAN VISION BIO- MEDICAL ASTRO- PHYSICS

Zanibbi, Richard

82

WHY SEARCH FOR DOUBLE BETA DECAY?  

E-Print Network [OSTI]

the search for neutrinoless double beta decay may prove verySearching for neutrinoless double beta decay is the onlysensitivity of neutrinoless double beta decay. The potential

Kayser, B.

2010-01-01T23:59:59.000Z

83

Double Flash | Open Energy Information  

Open Energy Info (EERE)

Flash Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleDoubleFlash&oldid599606"...

84

Domain walls and double bubbles  

Science Journals Connector (OSTI)

...5, which are never double bubbles, that is, none is the global...transverse cylinder, torus bubble, inner tube and double hydrant...transverse cylinder and the stability of the cylinder cross. The...three-dimensional double bubbles and show that the method can...

2009-01-01T23:59:59.000Z

85

The double-arm barn door tracker  

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

How to build a double-arm barn door tracker How to build a double-arm barn door tracker | Jefferson Lab Home Page | Science Education Home Page | Construction Notes/Photos Page | Sources: Sky & Telescope April 1989 (p436 - p441) [very good] Sky & Telescope February 1988 (p213 - p214) Original concept by Dave Trott A single-arm barn door tracker, driven by a straight screw, accumulates tangent error as time passes. Most of this error can be eliminated by adding a second hinged arm to the standard arrangement. There are four types of double-arm trackers, each with a different geometry. A comparison of accumulated error (in arc seconds) and construction parameters is given below: Error Chart [Apparently Type 1 is very bad and not worth constructing?? The two Type 4 drives vary in beta. This results in shifting the region of maximum error

86

Work Element B: 157. Sampling in Fish-Bearing Reaches [Variation in Productivity in Headwater Reaches of the Wenatchee Subbasin], Final Report for PNW Research Station.  

SciTech Connect (OSTI)

We studied variation in productivity in headwater reaches of the Wenatchee subbasin for multiple field seasons with the objective that we could develop methods for monitoring headwater stream conditions at the subcatchment and stream levels, assign a landscape-scale context via the effects of geoclimatic parameters on biological productivity (macroinvertebrates and fish) and use this information to identify how variability in productivity measured in fishless headwaters is transmitted to fish communities in downstream habitats. In 2008, we addressed this final objective. In collaboration with the University of Alaska Fairbanks we found some broad differences in the production of aquatic macroinvertebrates and in fish abundance across categories that combine the effects of climate and management intensity within the subbasin (ecoregions). From a monitoring standpoint, production of benthic macroinvertebrates was not a good predictor of drifting macroinvertebrates and therefore might be a poor predictor of food resources available to fish. Indeed, there is occasionally a correlation between drifting macroinvertebrate abundance and fish abundance which suggests that headwater-derived resources are important. However, fish in the headwaters appeared to be strongly food-limited and there was no evidence that fishless headwaters provided a consistent subsidy to fish in reaches downstream. Fish abundance and population dynamics in first order headwaters may be linked with similar metrics further down the watershed. The relative strength of local dynamics and inputs into productivity may be constrained or augmented by large-scale biogeoclimatic control. Headwater streams are nested within watersheds, which are in turn nested within ecological subregions; thus, we hypothesized that local effects would not necessarily be mutually exclusive from large-scale influence. To test this we examined the density of primarily salmonid fishes at several spatial and temporal scales within a major sub-basin of the Columbia River and associations of density with ecoregion and individuals drainages within the sub-basin. We further examined habitat metrics that show positive associations with fish abundance to see if these relationships varied at larger spatial scales. We examined the extent to which headwater fish density and temporal variation in density were correlated between the headwaters and the main tributaries of the sub-basin, and the influence of ecoregion influence on density differences, particularly at wider temporal scales. Finally, we examined demographic parameters such as growth and emigration to determine whether density-dependence differs among ecoregions or whether responses were more strongly influenced by the demography of the local fish population.

Polivka, Karl; Bennett, Rita L. [USDA Forest Service, Pacific Northwest Research Station, Wenatchee, WA

2009-03-31T23:59:59.000Z

87

Double Tracks revegetation and monitoring plan  

SciTech Connect (OSTI)

This document is a reclamation plan for short-term and long-term stabilization of land disturbed by activities associated with interim clean-up of radionuclide-contaminated surface soil at the Double Tracks site. This document has been prepared to provide general reclamation practices and procedures that will be followed during restoration of the cleanup site. Reclamation demonstration plots were established near the site in the fall of 1994 to evaluate the performance of several native species and to evaluate different irrigation strategies. Results of the study at Double Tracks, as well as the results from numerous studies conducted at other sites (Area 11 and Area 19 of the Nevada Test Site), have been summarized and incorporated into this final reclamation plan for the interim cleanup of the Double Tracks site, located northwest of the Nevada Test Site on the Nellis Air Force Range. Surface soils at Double Tracks were contaminated as a result of the detonation of a device containing plutonium and depleted uranium using chemical explosives. The total amount of Pu deposited on the site was between 980 and 1,600 grams and was scattered downwind south of the detonation site. Short-term stabilization consists of the application of a chemical soil stabilizer that is applied immediately following excavation of the contaminated soils to minimize Pu resuspension. Long-term stabilization is accomplished by the establishment of a permanent vegetation.

NONE

1997-07-01T23:59:59.000Z

88

Spatial Distribution of Juvenile Salmonids in the Hanford Reach, Columbia River  

E-Print Network [OSTI]

Spatial Distribution of Juvenile Salmonids in the Hanford Reach, Columbia River Dennis D. Dauble salmon, sockeye salmon. and steelhead was determined in the Hanford Reach of the Columbia River from July field studies conducted in the Hanford Reach ofthe mid-Columbia River in 1983 and 1984. The Hanford

89

A Consensus Reaching Model for Collaborative Decision Making in Web 2.0 Communities  

Science Journals Connector (OSTI)

Collaborative decision making has been studied widely. However, there is relatively little research as to how to reach consensus among group experts in the web 2.0 environment. This study provides a consensus reaching model for collaborative decision ... Keywords: collaborative decision making, web 2.0, concensus reaching model, dynamiclly alternatives generation, delegation

Xiaojie Li, Huili Zhang, Rui Mao, Xiaoyan Wang

2013-11-01T23:59:59.000Z

90

Biomethane production from different crop systems of cereals in Northern Italy  

Science Journals Connector (OSTI)

Abstract Global warming is linked to the reduction of green house gas emissions (GHG). The anaerobic digestion of animal manure and energy crops is a promising way of reducing GHG emissions. The increasing number of biogas plants involves a high consumption of energy crops and the needed of big agricultural area. In Italy, cereals silages are the main feedstock for biogas production and are commonly grown under two different crop systems: single crop (only maize) and double crops (maize later winter cereals). In this paper we present the results of experimental field tests carried out by monitoring the anaerobic biomethane potential (BMP) of different cereals silages commonly grown in the Padanian Plan. A laboratory device has been developed to measure the specific biomethane production of the different cereal silages. The different energy crops have been evaluated, in single and double crop systems, expressing the biomethane production per hectare. The maize hybrids show higher specific biomethane potentials respect to winter cereals. Maize FAO class 700 achieves the highest production per hectare as a single crop. Nevertheless, the highest biomethane productions per hectare are reached with double crop system in particular when maize FAO class 500 follows triticale (+12% respect the best single crop system).

Marco Negri; Jacopo Bacenetti; Massimo Brambilla; Andrea Manfredini; Andrea Cantore; Stefano Bocchi

2014-01-01T23:59:59.000Z

91

Neutrinoless Double Phys 135c Spring 2007  

E-Print Network [OSTI]

Neutrinoless Double Beta Decay Phys 135c Spring 2007 Michael Mendenhall #12;Theory Overview #12 beta decays #12;neutrinoless double beta decays n e- p beta decay e #12;neutrinoless double beta decays n e- p beta decay e n e- p n e- p double beta decay e e #12;neutrinoless double beta decays n e- p

Golwala, Sunil

92

The Monoclinic Double Sulphates Containing Ammonium. Completion of the Double Sulphate Series  

Science Journals Connector (OSTI)

...Double Sulphates Containing Ammonium. Completion of the Double Sulphate Series A. E...properties physical properties refractive index sulfates GeoRef, Copyright 2007, American...double sulphates containing ammonium; completion of the double sulphate series Tutton...

1916-01-01T23:59:59.000Z

93

The Majorana Neutrinoless Double-Beta Decay Experiment  

E-Print Network [OSTI]

Neutrinoless double-beta decay searches play a major role in determining the nature of neutrinos, the existence of a lepton violating process, and the effective Majorana neutrino mass. The Majorana Collaboration proposes to assemble an array of HPGe detectors to search for neutrinoless double-beta decay in Ge-76. Our proposed method uses the well-established technique of searching for neutrinoless double-beta decay in high purity Ge-diode radiation detectors that play both roles of source and detector. The technique is augmented with recent improvements in signal processing and detector design, and advances in controlling intrinsic and external backgrounds. Initially, Majorana aims to construct a prototype module containing 60 kg of Ge detectors to demonstrate the potential of a future 1-tonne experiment. The design and potential reach of this prototype Demonstrator module will be presented. This paper will also discuss detector optimization and low-background requirements, such as material purity, background rejection, and identification of rare backgrounds required to reach the sensitivity goals of the Majorana experiment.

V. E. Guiseppe; for the Majorana Collaboration

2008-11-15T23:59:59.000Z

94

Band Tunneling through Double Barrier in Bilayer Graphene  

E-Print Network [OSTI]

By taking into account the full four band energy spectrum, we calculate the transmission probability and conductance of electrons across symmetric and asymmetric double potential barrier with a confined interlayer potential difference in bilayer graphene. For energies less than the interlayer coupling \\gamma_{1}, E \\gamma_{1}, we obtain four possible ways for transmission resulting from the two propagating modes. We compute the associated transmission probabilities as well as their contribution to the conductance, study the effect of the double barrier geometry.

Hasan A. Alshehab; Hocine Bahlouli; Abderrahim El Mouhafid; Ahmed Jellal

2014-01-20T23:59:59.000Z

95

Dynamics of microcavity exciton polaritons in a Josephson double dimer  

Science Journals Connector (OSTI)

We study the dynamics of exciton polaritons in a double-well configuration. The system consists of two weakly coupled Bose-Josephson junctions, each corresponding to a different circular polarization of the polaritons, forming a Josephson double dimer. We show that the Josephson oscillation between the wells is strongly coupled to the polarization rotation and that, consequently, Josephson excitation is periodically exchanged between the two polarizations. Linearized analysis agrees well with numerical simulations using typical experimental parameters.

Christine Khripkov; Carlo Piermarocchi; Amichay Vardi

2013-12-10T23:59:59.000Z

96

Spawning Habitat Studies of Hanford Reach Fall Chinook Salmon (Oncorhynchus tshawytscha), Final Report.  

SciTech Connect (OSTI)

The Pacific Northwest National Laboratory conducted this study for the Bonneville Power Administration (BPA) with funding provided through the Northwest Power and Conservation Council(a) and the BPA Fish and Wildlife Program. The study was conducted in the Hanford Reach of the Columbia River. The goal of study was to determine the physical habitat factors necessary to define the redd capacity of fall Chinook salmon that spawn in large mainstem rivers like the Hanford Reach and Snake River. The study was originally commissioned in FY 1994 and then recommissioned in FY 2000 through the Fish and Wildlife Program rolling review of the Columbia River Basin projects. The work described in this report covers the period from 1994 through 2004; however, the majority of the information comes from the last four years of the study (2000 through 2004). Results from the work conducted from 1994 to 2000 were covered in an earlier report. More than any other stock of Pacific salmon, fall Chinook salmon (Oncorhynchus tshawytscha) have suffered severe impacts from the hydroelectric development in the Columbia River Basin. Fall Chinook salmon rely heavily on mainstem habitats for all phases of their life cycle, and mainstem hydroelectric dams have inundated or blocked areas that were historically used for spawning and rearing. The natural flow pattern that existed in the historic period has been altered by the dams, which in turn have affected the physical and biological template upon which fall Chinook salmon depend upon for successful reproduction. Operation of the dams to produce power to meet short-term needs in electricity (termed power peaking) produces unnatural fluctuations in flow over a 24-hour cycle. These flow fluctuations alter the physical habitat and disrupt the cues that salmon use to select spawning sites, as well as strand fish in near-shore habitat that becomes dewatered. The quality of spawning gravels has been affected by dam construction, flood protection, and agricultural and industrial development. In some cases, the riverbed is armored such that it is more difficult for spawners to move, while in other cases the intrusion of fine sediment into spawning gravels has reduced water flow to sensitive eggs and young fry. Recovery of fall Chinook salmon populations may involve habitat restoration through such actions as dam removal and reservoir drawdown. In addition, habitat protection will be accomplished through set-asides of existing high-quality habitat. A key component to evaluating these actions is quantifying the salmon spawning habitat potential of a given river reach so that realistic recovery goals for salmon abundance can be developed. Quantifying salmon spawning habitat potential requires an understanding of the spawning behavior of Chinook salmon, as well as an understanding of the physical habitat where these fish spawn. Increasingly, fish biologists are recognizing that assessing the physical habitat of riverine systems where salmon spawn goes beyond measuring microhabitat like water depth, velocity, and substrate size. Geomorphic features of the river measured over a range of spatial scales set up the physical template upon which the microhabitat develops, and successful assessments of spawning habitat potential incorporate these geomorphic features. We had three primary objectives for this study. The first objective was to determine the relationship between physical habitats at different spatial scales and fall Chinook salmon spawning locations. The second objective was to estimate the fall Chinook salmon redd capacity for the Reach. The third objective was to suggest a protocol for determining preferable spawning reaches of fall Chinook salmon. To ensure that we collected physical data within habitat that was representative of the full range of potential spawning habitat, the study area was stratified based on geomorphic features of the river using a two-dimensional river channel index that classified the river cross section into one of four shapes based on channel symmetry, depth, and width. We found t

Geist, David R.; Arntzen, Evan V.; Chien, Yi-Ju (Pacific Northwest National Laboratory)

2009-03-02T23:59:59.000Z

97

Double acting bit holder  

DOE Patents [OSTI]

A double acting bit holder that permits bits held in it to be resharpened during cutting action to increase energy efficiency by reducing the amount of small chips produced. The holder consist of: a stationary base portion capable of being fixed to a cutter head of an excavation machine and having an integral extension therefrom with a bore hole therethrough to accommodate a pin shaft; a movable portion coextensive with the base having a pin shaft integrally extending therefrom that is insertable in the bore hole of the base member to permit the moveable portion to rotate about the axis of the pin shaft; a recess in the movable portion of the holder to accommodate a shank of a bit; and a biased spring disposed in adjoining openings in the base and moveable portions of the holder to permit the moveable portion to pivot around the pin shaft during cutting action of a bit fixed in a turret to allow front, mid and back positions of the bit during cutting to lessen creation of small chip amounts and resharpen the bit during excavation use.

Morrell, Roger J. (Blommington, MN); Larson, David A. (Minneapolis, MN); Ruzzi, Peter L. (Eagan, MN)

1994-01-01T23:59:59.000Z

98

Stream-reach Identification for New Run-of-River Hydropower Development through a Merit Matrix Based Geospatial Algorithm  

SciTech Connect (OSTI)

Even after a century of development, the total hydropower potential from undeveloped rivers is still considered to be abundant in the United States. However, unlike evaluating hydropower potential at existing hydropower plants or non-powered dams, locating a feasible new hydropower plant involves many unknowns, and hence the total undeveloped potential is harder to quantify. In light of the rapid development of multiple national geospatial datasets for topography, hydrology, and environmental characteristics, a merit matrix based geospatial algorithm is proposed to help identify possible hydropower stream-reaches for future development. These hydropower stream-reaches sections of natural streams with suitable head, flow, and slope for possible future development are identified and compared using three different scenarios. A case study was conducted in the Alabama-Coosa-Tallapoosa (ACT) and Apalachicola-Chattahoochee-Flint (ACF) hydrologic subregions. It was found that a merit matrix based algorithm, which is based on the product of hydraulic head, annual mean flow, and average channel slope, can help effectively identify stream-reaches with high power density and small surface inundation. The identified stream-reaches can then be efficiently evaluated for their potential environmental impact, land development cost, and other competing water usage in detailed feasibility studies . Given that the selected datasets are available nationally (at least within the conterminous US), the proposed methodology will have wide applicability across the country.

Pasha, M. Fayzul K. [California State University, Fresno; Yeasmin, Dilruba [ORNL; Kao, Shih-Chieh [ORNL; Hadjerioua, Boualem [ORNL; Wei, Yaxing [ORNL; Smith, Brennan T [ORNL

2014-01-01T23:59:59.000Z

99

Double Difference Earthquake Locations at the Salton Sea Geothermal Reservoir  

SciTech Connect (OSTI)

The purpose of this paper is to report on processing of raw waveform data from 4547 events recorded at 12 stations between 2001 and 2005 by the Salton Sea Geothermal Field (SSGF) seismic network. We identified a central region of the network where vertically elongated distributions of hypocenters have previously been located from regional network analysis. We process the data from the local network by first autopicking first P and S arrivals; second, improving these with hand picks when necessary; then, using cross-correlation to provide very precise P and S relative arrival times. We used the HypoDD earthquake location algorithm to locate the events. We found that the originally elongated distributions of hypocenters became more tightly clustered and extend down the extent of the study volume at 10 Km. However, we found the shapes to depend on choices of location parameters. We speculate that these narrow elongated zones of seismicity may be due to stress release caused by fluid flow.

Boyle, K L; Hutchings, L J; Bonner, B P; Foxall, W; Kasameyer, P W

2007-08-08T23:59:59.000Z

100

Dr. Bhaskaran Gopalakrishnan Extends the Reach of the West Virginia University Industrial Assessment Center  

Broader source: Energy.gov [DOE]

As Director of the West Virginia University (WVU) Industrial Assessment Center (IAC), Dr. Bhaskaran Gopalakrishnan has a clear goal—broadening the reach and impact of the program.

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


101

Xcel Energy- Residential and Hard-to-Reach Standard Offer Program  

Broader source: Energy.gov [DOE]

The Residential and Hard-to-Reach Standard Offer Programs provide incentives to "Project Sponsors" to install energy efficiency measures in Xcel's service area. Residential customers should...

102

Overcoming Technical and Market Barriers for Distributed Wind Applications: Reaching the Mainstream; Preprint  

SciTech Connect (OSTI)

This paper describes how the distributed wind industry must overcome hurdles including system costs and interconnection and installation restrictions to reach its mainstream market potential.

Rhoads-Weaver, H.; Forsyth, T.

2006-07-01T23:59:59.000Z

103

Neutrinoless double beta decay in four-neutrino models  

E-Print Network [OSTI]

The most stringent constraint on the so-called effective electron neutrino mass from the present neutrinoless double beta decay experiments is |M_{ee}| < 0.2 eV, while the planned next generation experiment GENIUS is anticipated to reach a considerably more stringent limit |M_{ee}|< 0.001 eV. We investigate the constraints these bounds set on the neutrino masses and mixings of neutrinos in four-neutrino models where there exists a sterile neutrino along with the three ordinary neutrinos. We find that the GENIUS experiment would be sensitive to the electron neutrino masses down to the limit m_{\

Anna Kalliomaki; Jukka Maalampi

2000-03-29T23:59:59.000Z

104

IMPORTANCE OF NEUTRINOLESS DOUBLE BETA DECAY Abstract  

E-Print Network [OSTI]

number violation in nature and what is its magnitude. The neutrinoless double beta decay experiment can

U. Sarkar; Utpal Sarkar

105

Former Worker Program Reaches 100,000 Screening Milestone | Department of  

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

Former Worker Program Reaches 100,000 Screening Milestone Former Worker Program Reaches 100,000 Screening Milestone Former Worker Program Reaches 100,000 Screening Milestone August 29, 2013 - 8:51am Addthis Former Worker Program Reaches 100,000 Screening Milestone A major milestone was reached in June of this year - over 100,000 exams have now been provided to former workers since the inception of the program. Since 1996, the program has made great strides in addressing the occupational health legacy of the Department's 70-plus years of nuclear weapons design and production. We at the Office of Health, Safety and Security are especially proud of the emphasis we place on the importance of serving our workers. The Former Worker Medical Screening Program (FWP) is a prime example of DOE's commitment to its workforce and demonstrates the

106

Multiple aspects of neural activity during reaching preparation in the medial posterior parietal area v6a  

Science Journals Connector (OSTI)

The posterior parietal cortex is involved in the visuomotor transformations occurring during arm-reaching movements. The medial posterior parietal area V6A has been shown to be implicated in reaching execution, but its role in reaching preparation has ...

Rossella Breveglieri; Claudio Galletti; Giulia Dal Bò; Kostas Hadjidimitrakis; Patrizia Fattori

2014-04-01T23:59:59.000Z

107

Simulation and Analysis for Applying the Double-Stage Coupled Heat Pump System in the Villa of Cold Area  

E-Print Network [OSTI]

Science Foundation of China (Grant no. 50278021) and SRF for ROCS. Total energy consumption in the world reached 1086 Mtoe (million tonnes oil equivalent) in 2005, showing a 5.88% increase over 2004, total energy consumption in China reached 147... no. 50278021) and SRF for ROCS. REFERENCES [1] Yinping Yu. Prediction and analysis for double coupling heat pump in cold areas for our country. Master Dissertation of Harbin Institute of Technology. 2002.?In Chinese ? [2] Yang Wang, et al...

Yang, L.; Yao, Y.; Ma, Z.

2006-01-01T23:59:59.000Z

108

Major Cold War Cleanup Milestone Reached at the Savannah River Site |  

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

Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site March 29, 2012 - 10:37am Addthis WASHINGTON, DC - Today, the Energy Department announced it has reached a major milestone in the Department's efforts to clean up the Cold War legacy at the Savannah River Site (SRS) in South Carolina, laying the groundwork for closing two underground storage tanks that previously held radioactive liquid waste from nuclear weapons production at SRS. The determination signed by Energy Secretary Steven Chu paves the way for SRS to begin closing the massive tanks that make up the F Tank Farm. The site will start this year by closing two tanks that pose the greatest risk to the environment - Tanks 18 and 19. These tank closures will be the first

109

Hanford Reaches Recovery Act Goal for Waste Cleanup Ahead of Schedule -  

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

Reaches Recovery Act Goal for Waste Cleanup Ahead of Reaches Recovery Act Goal for Waste Cleanup Ahead of Schedule - Workers Shipped 1,800 Cubic Meters for Treatment and Disposal Hanford Reaches Recovery Act Goal for Waste Cleanup Ahead of Schedule - Workers Shipped 1,800 Cubic Meters for Treatment and Disposal July 26, 2011 - 12:00pm Addthis Media Contacts Andre Armstrong, CH2M HILL Andre_L_Armstrong@rl.gov 509-376-6773 Geoff Tyree, DOE Geoffrey.Tyree@rl.doe.gov 509-376-4171 RICHLAND, Wash. - Today, the Department of Energy Hanford Site announced it reached a cleanup goal more than two months ahead of schedule at the Hanford Site in southeast Washington State. Supported by funding from the American Recovery and Reinvestment Act, workers retrieved containers of contaminated material from storage buildings and underground storage trenches and prepared them for treatment

110

Department of Energy reaches an agreement in principle on the cleanup of  

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

reaches an agreement in principle on the reaches an agreement in principle on the cleanup of the Santa Susana Field Lab site in Simi Valley Department of Energy reaches an agreement in principle on the cleanup of the Santa Susana Field Lab site in Simi Valley September 3, 2010 - 12:00am Addthis WASHINGTON, D.C. - The Department of Energy announced today that it has reached an agreement in principle with California's Department of Toxic Substances Control (DTSC) and NASA on the cleanup of the Santa Susana Field Lab (SSFL) site in Simi Valley. "The Department is pleased that we have achieved a conceptual agreement for cleanup of the DOE portion of the Santa Susana Field Lab site," said Dr. Ines Triay, DOE Assistant Secretary for Environmental Management. "By putting to one side unresolved legal issues and working together, we have

111

WIPP Workers Reach Two Million Man-Hours Without a Lost-Time Accident  

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

Workers Reach Two Million Man-Hours Workers Reach Two Million Man-Hours Without a Lost-Time Accident CARLSBAD, N.M., February 22, 2001 - Workers at the U.S. Department of Energy's (DOE) Waste Isolation Pilot Plant (WIPP) reached a safety milestone Feb. 19 by working two million man-hours without a lost-time accident. According to the National Safety Council, facilities with the same industry code as WIPP lose an average of 20.6 workdays (or 164.8 man-hours) a year to accidents. "Safety is at the core of all WIPP operations," said Dr. Inés Triay, Manager of DOE's Carlsbad Field Office. "We are particularly pleased that WIPP workers reached the two million mark during the time in which they mined a new panel and increased shift work." "To make safety a number one priority means more than creating a safe

112

Major Cold War Cleanup Milestone Reached at the Savannah River Site |  

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

Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site March 29, 2012 - 10:37am Addthis WASHINGTON, DC - Today, the Energy Department announced it has reached a major milestone in the Department's efforts to clean up the Cold War legacy at the Savannah River Site (SRS) in South Carolina, laying the groundwork for closing two underground storage tanks that previously held radioactive liquid waste from nuclear weapons production at SRS. The determination signed by Energy Secretary Steven Chu paves the way for SRS to begin closing the massive tanks that make up the F Tank Farm. The site will start this year by closing two tanks that pose the greatest risk to the environment - Tanks 18 and 19. These tank closures will be the first

113

LANL Reaches Waste Shipment Milestone: Waste from Cold War-era weapons  

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

Reaches Waste Shipment Milestone: Waste from Cold War-era Reaches Waste Shipment Milestone: Waste from Cold War-era weapons production being shipped to WIPP LANL Reaches Waste Shipment Milestone: Waste from Cold War-era weapons production being shipped to WIPP May 31, 2011 - 12:00pm Addthis Media Contact Fred deSousa 505-665-3430 fdesousa@lanl.gov LOS ALAMOS, New Mexico - Los Alamos National Laboratory has reached an important milestone in its campaign to ship transuranic (TRU) waste from Cold War-era nuclear operations to the U.S. Department of Energy's Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. This month, the Lab surpassed 100,000 plutonium-equivalent curies of TRU waste shipped to WIPP, about one-third of the Lab's total. The waste, sent from LANL to WIPP in more than 750 shipments since 1999,

114

Reaching Social Media Goals on Facebook, Twitter | OpenEI Community  

Open Energy Info (EERE)

Reaching Social Media Goals on Facebook, Twitter Reaching Social Media Goals on Facebook, Twitter Home > Groups > OpenEI Community Central Graham7781's picture Submitted by Graham7781(2002) Super contributor 4 March, 2010 - 14:44 imported OpenEI OpenEI.org has been active in building its online community, and has met its first goal thanks to the efforts of online fans! The OpenEI Facebook page recently reached 100 fans, and continues to reach beyond this goal. Our fans are vital to the success of Openei, and we hope they will engage in all of Openei's social media networks, including our Google Group, Blog, and Twitter pages. You can still join our Facebook page. All you have to do is have a Facebook account, then you can search for our page by typing in "OpenEI" in the search area, located at the top of any page on Facebook. At the top of the

115

Innovative Telemetry System Will Help Tap Hard-to-Reach Natural Gas  

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

Innovative Telemetry System Will Help Tap Hard-to-Reach Natural Gas Innovative Telemetry System Will Help Tap Hard-to-Reach Natural Gas Resources Innovative Telemetry System Will Help Tap Hard-to-Reach Natural Gas Resources November 2, 2010 - 1:00pm Addthis Washington, DC - The commercialization of an innovative telemetry communications system developed through a U.S. Department of Energy research program will help U.S. producers tap previously hard-to-reach natural gas resources deep underground, resulting in access to additional supplies that will help enhance national energy security. The patented, proprietary Sharewell L.P. EM-MWD electromagnetic (EM) telemetry system was initially developed by the Office of Fossil Energy's (FE) National Energy Technology Laboratory (NETL) and E-Spectrum Technologies of San Antonio, Texas, under a four-year, cost-shared

116

Hanford Reaches Recovery Act Goal for Waste Cleanup Ahead of Schedule -  

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

Reaches Recovery Act Goal for Waste Cleanup Ahead of Reaches Recovery Act Goal for Waste Cleanup Ahead of Schedule - Workers Shipped 1,800 Cubic Meters for Treatment and Disposal Hanford Reaches Recovery Act Goal for Waste Cleanup Ahead of Schedule - Workers Shipped 1,800 Cubic Meters for Treatment and Disposal July 26, 2011 - 12:00pm Addthis Media Contacts Andre Armstrong, CH2M HILL Andre_L_Armstrong@rl.gov 509-376-6773 Geoff Tyree, DOE Geoffrey.Tyree@rl.doe.gov 509-376-4171 RICHLAND, Wash. - Today, the Department of Energy Hanford Site announced it reached a cleanup goal more than two months ahead of schedule at the Hanford Site in southeast Washington State. Supported by funding from the American Recovery and Reinvestment Act, workers retrieved containers of contaminated material from storage buildings and underground storage trenches and prepared them for treatment

117

Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project  

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

Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project Accomplishes Milestone While Doing it Safely Moab Mill Tailings Removal Project Reaches 5 Million Tons Disposed: Project Accomplishes Milestone While Doing it Safely February 27, 2012 - 12:00pm Addthis Media Contacts Donald Metzler, Moab Federal Project Director, (970) 257-2115 Wendee Ryan, S&K Aerospace Public Affairs Manager, (970) 257-2145 Grand Junction, CO- The U.S. Department of Energy (DOE) reached another milestone today for the Uranium Mill Tailings Remedial Action Project, having shipped 5 million tons of tailings from the massive pile located in Moab, Utah, to the engineered disposal cell near Crescent Junction, Utah. The pile comprised an estimated 16 million tons total when DOE's Remedial

118

DOE Reaches Recovery Act Goal With Cleanup of All Legacy Transuranic Waste  

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

Reaches Recovery Act Goal With Cleanup of All Legacy Reaches Recovery Act Goal With Cleanup of All Legacy Transuranic Waste at Sandia National Laboratories DOE Reaches Recovery Act Goal With Cleanup of All Legacy Transuranic Waste at Sandia National Laboratories May 3, 2012 - 12:00pm Addthis Media Contact Deb Gill, U.S. DOE Carlsbad Field Office, (575) 234-7270 CARLSBAD, N.M., May 3, 2012 -The U.S. Department of Energy (DOE) completed cleanup of the Cold War legacy transuranic (TRU) waste at Sandia National Laboratories (Sandia) in Albuquerque, New Mexico when four shipments of remote-handled (RH) TRU waste from Sandia arrived at the Waste Isolation Pilot Plant (WIPP) near Carlsbad, N.M. for permanent disposal on May 2, 2012. The DOE Carlsbad Field Office (CBFO) reached one of its final milestones under the American Recovery and Reinvestment Act (ARRA) with the legacy TRU

119

The role (relationship) of visual and motor imagery in estimating reach  

E-Print Network [OSTI]

The primary intent of this study was to explore fundamental questions about the role and relationship between motor (MI) and visual (VI) imagery within the context of estimating reach. Experiment 1 examined and compared VI and MI tasks under matched...

Ammar, Diala Fouad

2007-09-17T23:59:59.000Z

120

Moab Reaches 40-Percent Mark in Tailings Removal | Department of Energy  

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

Moab Reaches 40-Percent Mark in Tailings Removal Moab Reaches 40-Percent Mark in Tailings Removal Moab Reaches 40-Percent Mark in Tailings Removal December 24, 2013 - 12:00pm Addthis A haul truck carrying a container is loaded with mill tailings at the Moab site. Once loaded and lidded, the container will be placed on a railcar for shipment by train to the Crescent Junction disposal site. A haul truck carrying a container is loaded with mill tailings at the Moab site. Once loaded and lidded, the container will be placed on a railcar for shipment by train to the Crescent Junction disposal site. MOAB, Utah - The Moab Uranium Mill Tailings Remedial Action Project had a productive year, despite continued budget constraints and a first-ever, three-month curtailment of shipping operations last winter. On June 18, the project reached a significant milestone of having shipped 6

Note: This page contains sample records for the topic "differences reaching double" 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

Decimal System and Double Digits  

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

Decimal System and Double Digits Decimal System and Double Digits Name: Ken Status: other Grade: other Country: Canada Date: April 2011 Question: If the origin of the decimal system reflects counting on ten fingers and if zero came into use after the decimal system had been established why did we not create a single symbol for our tenth digit rather than use the double digit 10? If T were to represent the tenth number this would have created a counting system where the number series 1,2...9,T is followed by the same series having a 1 to the left then followed by the same series having a 2 to the left, etc. The T would be the last number in a series of ten single digits rather than be the first number in a series of double digits. The symbol zero would be used only between negative one and positive one because it represents the existence of nothing and, therefore, would have no other function.

122

Discovery Mass Reach for Topgluons Decaying to t anti-t at the Tevatron  

E-Print Network [OSTI]

In topcolor assisted technicolor, topgluons are massive gluons which couple mainly to top and bottom quarks. We estimate the mass reach for topgluons decaying to t anti-t at the Tevatron as a function of integrated luminosity. The mass reach for topgluons decreases with increasing topgluon width, and is 1.0 - 1.1 TeV for Run II (2 fb^-1) and 1.3-1.4 TeV for TeV33 (30 fb^-1).

Robert M. Harris

1996-09-11T23:59:59.000Z

123

Discovery Mass Reach for Topgluons Decaying to b anti-b at the Tevatron  

E-Print Network [OSTI]

In topcolor assisted technicolor, topgluons are massive gluons which couple mainly to top and bottom quarks. We estimate the mass reach for topgluons decaying to b anti-b at the Tevatron as a function of integrated luminosity. The mass reach for topgluons decreases with increasing topgluon width, and is 0.77 - 0.95 TeV for Run II (2 fb^-1) and 1.0-1.2 TeV for TeV33 (30 fb^-1).

Robert M. Harris

1996-09-11T23:59:59.000Z

124

Large Hadron Collider Probe of Supersymmetric Neutrinoless Double-Beta-Decay Mechanism  

Science Journals Connector (OSTI)

In the minimal supersymmetric extension to the standard model, a nonzero lepton number violating coupling ?111? predicts both neutrinoless double-beta-decay and resonant single slepton production at the LHC. We show that, in this case, if neutrinoless double beta decay is discovered in the next generation of experiments, there exist good prospects to observe single slepton production at the LHC. Neutrinoless double beta decay could otherwise result from a different source (such as a nonzero Majorana neutrino mass). Resonant single slepton production at the LHC can therefore discriminate between the ?111? neutrinoless double-beta-decay mechanism and others.

B. C. Allanach; C. H. Kom; H. Päs

2009-08-25T23:59:59.000Z

125

Multimedia classification and event detection using double fusion  

Science Journals Connector (OSTI)

Multimedia Event Detection(MED) is a multimedia retrieval task with the goal of finding videos of a particular event in video archives, given example videos and event descriptions; different from MED, multimedia classification is a task that classifies ... Keywords: Double fusion, Early fusion, Feature combination, Late fusion, Multimedia event detection

Zhen-Zhong Lan, Lei Bao, Shoou-I Yu, Wei Liu, Alexander G. Hauptmann

2014-07-01T23:59:59.000Z

126

Effects of New Gravitational Interactions on Neutrinoless Double Beta Decay  

E-Print Network [OSTI]

It has recently been proposed that violations of Lorentz invariance or violations of the equivalence principle can be constrained from the non-observation of neutrinoless double beta decay. We generalize this analysis to all possible new gravitational interactions and discuss briefly the constraints for different cases.

H. V. Klapdor--Kleingrothaus; H. Päs; U. Sarkar

2000-02-20T23:59:59.000Z

127

Double-Sided Cooling Design for Novel Planar Module  

SciTech Connect (OSTI)

A novel packaging structure for medium power modules featuring power semiconductor switches sandwiched between two symmetric substrates that fulfill electrical conduction and insulation functions is presented. Large bonding areas between dies and substrates allow this packaging technology to offer significant improvements in electrical, thermal performance. Double-sided cooling system was dedicatedly analyzed and designed for different applications.

Ning, Puqi [ORNL; Liang, Zhenxian [ORNL; Marlino, Laura D [ORNL; Wang, Fei [ORNL

2013-01-01T23:59:59.000Z

128

Accelerating the Adoption of Second-Tier Reach Standards forApplicable Appliance Products in China  

SciTech Connect (OSTI)

The minimum energy efficiency standards program for household appliances in China was initiated in 1989. Since 1996, CLASP and its implementing partner, LBNL, have assisted China in developing 11 minimum energy performance standards (MEPS) for 9 products and endorsement labels for 11 products including: refrigerators; air conditioners; clothes washers; televisions; printers; computers; monitors; fax machines; copiers; DVD/VCD players; external power supplies; and set-top boxes (under development). Before 2003, China's traditional approach to standards development involved small increases in efficiency requirements for implementation within 6 months of a standard's approval. Since 2003, China has adopted a new approach in setting MEPS. This new approach involves the development of two tiers of standards--one for initial implementation and a second tier at a more aggressive level of energy efficiency for implementation three to five years later. The second-tier standard is also referred to as a 'reach standard'. Reach standards have now been developed in China for: color TVs; refrigerators; air conditioners; and external power supplies. This report is presented in five sections. After the introduction in Section 1, Section 2 analyzes the distribution of the efficiency of refrigerators and air-conditioners in China based on data collected by the China Energy Label Center for the mandatory energy information label program. The results provide an assessment of the adoption of reach standards for these two products. Section 3 summarizes on-going collaborations with Shanghai related to early local adoption of reach standards, and presents both the impact and an analysis of barriers to the local adoption of reach standard for air-conditioners. Section 4 offers suggestions for local governments on how to move forward in adopting reach standards in their localities and concludes with a summary of the results and a plan for developing local capacity in order to achieve success in adopting reach standards.

Lin, Jiang; Fridley, David

2007-03-01T23:59:59.000Z

129

NEUTRINOLESS DOUBLE BETA DECAY AND ITS “INVERSE”  

E-Print Network [OSTI]

subsequently published arguments, non-observation of neutrinoless double beta decay has, to date, no bearing on

Clemens A. Heusch; Peter Minkowski

1996-01-01T23:59:59.000Z

130

Neutrinoless Double Beta Decay and CP Violation  

E-Print Network [OSTI]

neutrinoless double beta decay in the case of two neutrino generations (or when the third generation leptons do

Patrick J. O’donnell; Utpal Sarkar

1993-01-01T23:59:59.000Z

131

CIRCUMSTELLAR ABSORPTION IN DOUBLE DETONATION TYPE Ia SUPERNOVAE  

SciTech Connect (OSTI)

Upon formation, degenerate He core white dwarfs are surrounded by a radiative H-rich layer primarily supported by ideal gas pressure. In this Letter, we examine the effect of this H-rich layer on mass transfer in He+C/O double white dwarf binaries that will eventually merge and possibly yield a Type Ia supernova (SN Ia) in the double detonation scenario. Because its thermal profile and equation of state differ from the underlying He core, the H-rich layer is transferred stably onto the C/O white dwarf prior to the He core's tidal disruption. We find that this material is ejected from the binary system and sweeps up the surrounding interstellar medium hundreds to thousands of years before the SN Ia. The close match between the resulting circumstellar medium profiles and values inferred from recent observations of circumstellar absorption in SNe Ia gives further credence to the resurgent double detonation scenario.

Shen, Ken J. [Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States); Guillochon, James [Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064 (United States); Foley, Ryan J., E-mail: kenshen@astro.berkeley.edu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

2013-06-20T23:59:59.000Z

132

Double pulse laser induced breakdown spectroscopy; experimental study of  

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

Double pulse laser induced breakdown spectroscopy; experimental study of Double pulse laser induced breakdown spectroscopy; experimental study of lead emission intensity dependence on the wavelengths and sample matrix Title Double pulse laser induced breakdown spectroscopy; experimental study of lead emission intensity dependence on the wavelengths and sample matrix Publication Type Journal Article Year of Publication 2009 Authors Piscitelli, Vincent, Mauro A. Martinez, Alberto J. Fernandez, Jhanis J. Gonzalez, Xianglei Mao, and Richard E. Russo Journal Spectrochimica Acta Part B Volume 64 Issue 2 Pagination 147-154 Date Published 02/2009 Keywords Double pulse LIBS, laser induced breakdown spectroscopy, lead Abstract Lead (Pb) emission intensity (atomic line 405.78 nm) dependence on the sample matrix (metal alloy) was studied by means of collinear double pulse (DP)-laser induced breakdown spectroscopy (LIBS). The measurement of the emission intensity produced by three different wavelength combinations (i.e. I:532 nm-II:1064 nm, I:532 nm-II:532 nm, and I:532 nm-II:355 nm) from three series of standard reference materials showed that the lead atomic line 405.78 nm emission intensity was dependent on the sample matrix for all the combination of wavelengths, however reduced dependency was found for the wavelength combination I:532 nm-II:355 nm.

133

Localized model for systems with double-exchange coupling  

Science Journals Connector (OSTI)

Magnetic spins in crystals of mixed valence can simultaneously experience two kinds of coupling: the superexchange and the double exchange. The latter coupling, first invoked by Zener and further worked out by Anderson and Hasegawa, is mediated by additional electrons or holes introduced into the system. In the present paper an effective site-spins interaction Hamiltonian for double exchange is formulated. This Hamiltonian involves ascending powers of the bilinear interaction S?i·S?j. The highest power is determined by the value of the site spin. Thus, for spin-½ the double exchange interaction looks like the ordinary Heisenberg-type coupling. Spin-1 Hamiltonian contains also a biquadratic coupling. Spin-32 includes a bicubic interaction, spin-2 a biquartic one, etc. It is argued that a localized description of systems with the double exchange is usually sufficient. The phase diagrams are entirely different from the one predicted by the semiclassical (large-spin) band theory proposed by de Gennes. The critical concentrations of the carriers are evaluated at T=0 K in the mean-field-theory approximation. An applied magnetic field is shown to have little influence on the strength of the double-exchange coupling. Spin configurations in the presence of the field are also discussed. Finally, a spin-wave theory for such systems is constructed.

M. Cieplak

1978-10-01T23:59:59.000Z

134

Systematic decomposition of the neutrinoless double beta decay operator  

E-Print Network [OSTI]

We discuss the systematic decomposition of the dimension nine neutrinoless double beta decay operator, focusing on mechanisms with potentially small contributions to neutrino mass, while being accessible at the LHC. We first provide a (d=9 tree-level) complete list of diagrams for neutrinoless double beta decay. From this list one can easily recover all previously discussed contributions to the neutrinoless double beta decay process, such as the celebrated mass mechanism or "exotics", such as contributions from left-right symmetric models, R-parity violating supersymmetry and leptoquarks. More interestingly, however, we identify a number of new possibilities which have not been discussed in the literature previously. Contact to earlier works based on a general Lorentz-invariant parametrisation of the neutrinoless double beta decay rate is made, which allows, in principle, to derive limits on all possible contributions. We furthermore discuss possible signals at the LHC for mediators leading to the short-range part of the amplitude with one specific example. The study of such contributions would gain particular importance if there were a tension between different measurements of neutrino mass such as coming from neutrinoless double beta decay and cosmology or single beta decay.

Florian Bonnet; Martin Hirsch; Toshihiko Ota; Walter Winter

2012-12-13T23:59:59.000Z

135

Doubling of atmospheric methane supported  

SciTech Connect (OSTI)

Atmospheric methane over the past 27,000 years was measured by analyzing air trapped in glacial ice in Greenland and Antarctica. Atmospheric concentrations were stable over that period until about 200 years b.p. In the last 200 years they have more than doubled. This change in concentration is correlated with the increase in human population; the implications for climate modification are discussed. 1 figure, 3 references.

Kerr, R.A.

1984-11-23T23:59:59.000Z

136

Disposal Facility Reaches 15-Million-Ton Milestone | Department of Energy  

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

Disposal Facility Reaches 15-Million-Ton Milestone Disposal Facility Reaches 15-Million-Ton Milestone Disposal Facility Reaches 15-Million-Ton Milestone July 30, 2013 - 12:00pm Addthis Matt McCormick, manager of the Richland Operations Office, commends a large group of Hanford workers for the 15-million-ton milestone at a public event at the Environmental Restoration Disposal Facility. Matt McCormick, manager of the Richland Operations Office, commends a large group of Hanford workers for the 15-million-ton milestone at a public event at the Environmental Restoration Disposal Facility. RICHLAND, Wash. - EM's Environmental Restoration Disposal Facility (ERDF) - a massive landfill for low-level radioactive and hazardous waste at the Hanford site - has achieved a major cleanup milestone. Since beginning operations in 1996, workers supporting the Richland

137

U.S., China Reach Agreement on Intellectual Property Protections for  

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

Reach Agreement on Intellectual Property Protections Reach Agreement on Intellectual Property Protections for U.S.-China Clean Energy Research Center U.S., China Reach Agreement on Intellectual Property Protections for U.S.-China Clean Energy Research Center September 23, 2011 - 10:46am Addthis WASHINGTON, D.C. - U.S. Energy Secretary Steven Chu and Minister Wan Gang, of the Chinese Ministry of Science and Technology, today witnessed the signing by U.S. and Chinese government officials of letters of endorsement recognizing intellectual property guidelines agreed upon by each of the three consortia comprising the U.S.-China Clean Energy Research Center. David Sandalow, Assistant Secretary for Policy and International Affairs signed for the U.S. MA Linying, Deputy Director General for International Affairs, Ministry of Science and Technology, signed for

138

Expanded "Green Button" Will Reach Federal Agencies and More American  

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

Expanded "Green Button" Will Reach Federal Agencies and More Expanded "Green Button" Will Reach Federal Agencies and More American Energy Consumers Expanded "Green Button" Will Reach Federal Agencies and More American Energy Consumers December 6, 2013 - 12:50pm Addthis Applications powered by open energy data were on display at the Energy Datapalooza in June 2012. Initiatives like Green Button will expand the ways consumers -- from homeowners and renters to federal government agencies -- can interact with and interpret their energy data. | Photo by Sarah Gerrity, Energy Department. Applications powered by open energy data were on display at the Energy Datapalooza in June 2012. Initiatives like Green Button will expand the ways consumers -- from homeowners and renters to federal government agencies -- can interact with and interpret their energy data. | Photo by

139

U.S. and India Reach Historic Agreement on FutureGen Project | Department  

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

Reach Historic Agreement on FutureGen Project Reach Historic Agreement on FutureGen Project U.S. and India Reach Historic Agreement on FutureGen Project March 2, 2006 - 11:34am Addthis India becomes the first nation to accept U.S. invitation to participate in new clean coal project WASHINGTON, DC - President George W. Bush announced today that India will become the first country to participate on the government steering committee for the U.S. Department of Energy's FutureGen project - an initiative to build and operate the world's first coal-based power plant that removes and sequesters carbon dioxide (CO2) while it produces electricity and hydrogen. As a partner, the Indian government will contribute $10 million to the FutureGen Initiative and Indian companies will also be invited to participate in the private sector segment.

140

DOE and NASA Reach Cleanup Agreements with the State of California for the  

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

NASA Reach Cleanup Agreements with the State of California NASA Reach Cleanup Agreements with the State of California for the Santa Susana Field Laboratory DOE and NASA Reach Cleanup Agreements with the State of California for the Santa Susana Field Laboratory December 6, 2010 - 12:00am Addthis Washington, D.C. - The Department of Energy and NASA both signed Administrative Orders on Consent (AOC) with the California Environmental Protection Agency (Cal EPA) today that define the process for characterization and the cleanup end-state for portions of the Santa Susana Field Laboratory (SSFL). The agreements come after more than 10 months of negotiations and extensive public comment on the conceptual framework for cleanup outlined in the Agreement in Principle and additional public comment on the legally enforceable process and procedures in the draft Administrative Order on

Note: This page contains sample records for the topic "differences reaching double" 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

Weatherization Subgrantees Reach More N.Y. Homes | Department of Energy  

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

Subgrantees Reach More N.Y. Homes Subgrantees Reach More N.Y. Homes Weatherization Subgrantees Reach More N.Y. Homes April 22, 2010 - 4:37pm Addthis Lindsay Gsell Thanks to funds from the Recovery Act, New York expanded its network of weatherization subgrantees. The state has added nine additional subgrantees to its network of 66 community-based organizations that provide energy conservation services on a local level. New York's Division of Housing and Community Renewal received slightly more than $100 million for Weatherization Assistance Program in 2009, a significant increase from its previous annual allotment of approximately $60 million. In addition to this increase in annual funding, DHCR also received $394 million in WAP stimulus funding from the Recovery Act. "New York's success has been built on a network of sub grantees and

142

A European Supergrid for Renewable Energy: Local Impacts and Far-Reaching  

Open Energy Info (EERE)

A European Supergrid for Renewable Energy: Local Impacts and Far-Reaching A European Supergrid for Renewable Energy: Local Impacts and Far-Reaching Challenges Jump to: navigation, search Tool Summary LAUNCH TOOL Name: A European Supergrid for Renewable Energy: Local Impacts and Far-Reaching Challenges Focus Area: Renewable Energy Topics: Market Analysis Website: www.sciencedirect.com/science/article/pii/S0959652611002447 Equivalent URI: cleanenergysolutions.org/content/european-supergrid-renewable-energy-l Language: English Policies: "Deployment Programs,Regulations" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Demonstration & Implementation Regulations: Resource Integration Planning This article assesses the impact of extensive deployment of indigenous and

143

Space Chamber Reaches Cold Target at Unprecedented Efficiency | U.S. DOE  

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

Space Chamber Reaches Cold Target at Unprecedented Efficiency Space Chamber Reaches Cold Target at Unprecedented Efficiency Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » October 2012 Space Chamber Reaches Cold Target at Unprecedented Efficiency Thomas Jefferson Laboratory lends expertise in cryogenics developments. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of NASA NASA's Space Environment Simulation Lab Chamber A, which is used by the

144

As Auto X Reaches the Finish Line, a New Race Begins | Department of Energy  

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

As Auto X Reaches the Finish Line, a New Race Begins As Auto X Reaches the Finish Line, a New Race Begins As Auto X Reaches the Finish Line, a New Race Begins September 17, 2010 - 4:20pm Addthis John Schueler John Schueler Former New Media Specialist, Office of Public Affairs When the Automotive X Prize competition began back in March of 2008, the organizers laid out an ambitious goal: inspire a new generation of viable, safe and super fuel-efficient vehicles capable of achieving 100 miles per gallon or the energy equivalent (MPGe). The response they received was staggering -- 136 vehicle design proposals from teams across the globe, all eager to innovate and set a new standard for energy efficiency. In the two years since the competition was announced, the field thinned through various stages of competition, evaluation and testing. Not content

145

Correlations and the neutrinoless double beta decay  

Science Journals Connector (OSTI)

We explore the influence of the deformation on the nuclear matrix elements of the neutrinoless double beta decay (NME) concluding that the difference in deformation ?or more generally on the amount of quadrupole correlations? between parent and grand daughter nuclei quenchs strongly the decay. We discuss how varies the nuclear matrix element of 76 Ge decay when the wave functions of the two nuclei involved in the transition are constrained to reproduce the experimental occupancies. In the Interacting Shell Model description the value of the NME is enhanced about 15% compared to previous calculations whereas in the QRPA the NME’s are reduced by 20%–30% thus the discrepancies between both approaches diminish.

J. Menéndez; A. Poves; E. Caurier; F. Nowacki

2009-01-01T23:59:59.000Z

146

Discovery of the two-neutrino double-beta decay of xenon-136 with EXO-200.  

E-Print Network [OSTI]

??Recent neutrino oscillation measurements provide definitive evidence for non-zero neutrino masses. Oscillation measurements, however, only measure mass differences, not the absolute mass scale. Neutrinoless double-beta… (more)

Stanford University, Dept. of Physics

2011-01-01T23:59:59.000Z

147

RAMANUJAN REACHES HIS HAND FROM HIS GRAVE TO SNATCH YOUR THEOREMS FROM YOU  

E-Print Network [OSTI]

RAMANUJAN REACHES HIS HAND FROM HIS GRAVE TO SNATCH YOUR THEOREMS FROM YOU BRUCE C. BERNDT 1 for many years and were in the meantime proved by others. On June 1­5, 1987, a meeting was held Mathematical Society were much in the spirit 1 #12;2 BRUCE C. BERNDT of mathematics popular in India

Berndt, Bruce C.

148

Angle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane  

E-Print Network [OSTI]

pixel could be the robot's goal, and is painted gray if it is reachable by (left) the basic control lawAngle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane Rice University.rice.edu argyros@ics.forth.gr Abstract-- Popular approaches for mobile robot navigation involve range information

Trahanias, Panos

149

Angle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane  

E-Print Network [OSTI]

could be the robot's goal, and is painted gray if it is reachable by (left) the basic control lawAngle-Based Methods for Mobile Robot Navigation: Reaching the Entire Plane Kostas E. Bekris1 for mobile robot navigation involve range information and metric maps of the workspace. For many sensors

Trahanias, Panos

150

The Geographic Reach of Market and NonMarket Channels of  

E-Print Network [OSTI]

citations. We find that knowledge flows through market transactions to be more geographically localized thanThe Geographic Reach of Market and Non­Market Channels of University Research Commercialization important channels: market contracts (licenses) and non­market "spillovers" ex- emplified by patent

Sadoulet, Elisabeth

151

Film Photo-Advanced Place Shelby Herrera, Valencia County "Reaching for the Sun"*  

E-Print Network [OSTI]

Film Photo- Advanced 1st Place ­Shelby Herrera, Valencia County "Reaching for the Sun"* 2nd Place "Star Gazing"* Digital Photo- Beginner 1st Place ­Colton McVaugh, Dona Ana County "Monsoon Sunset"* 2nd, "Catepillar"* Honorable Mention ­Colton McVaugh, Dona Ana County "Dinner Time"* Digital Photo- Advanced 1st

152

Developing a Reaching Behaviour in an simulated Anthropomorphic Robotic Arm Through an Evolutionary Technique  

E-Print Network [OSTI]

Developing a Reaching Behaviour in an simulated Anthropomorphic Robotic Arm Through an Evolutionary an evolutionary technique for developing a neural network based controller for an an- thropomorphic robotic arm, the robot's body and the environment. 1. Introduction The control of arm and hand movements in human and non

Cangelosi, Angelo

153

Electromagnetic interference shielding reaching 70 dB in steel fiber cement  

E-Print Network [OSTI]

Electromagnetic interference shielding reaching 70 dB in steel fiber cement Sihai Wen, D.D.L. Chung; Silica fume; Shielding 1. Introduction Electromagnetic interference (EMI) shielding [1­4] is in critical, NY 14260-4400, USA Received 9 January 2002; accepted 14 August 2003 Abstract An electromagnetic

Chung, Deborah D.L.

154

Identifying eroding and depositional reaches of valley by analysis of suspended sediment transport  

E-Print Network [OSTI]

Identifying eroding and depositional reaches of valley by analysis of suspended sediment transport in suspended sediment transport and storage along the Sacramento River were assessed by evaluating the suspended sediment budget for the main channel accounting for all tributaries and diversions. Time series

Singer, Michael

155

A SURVEY OF THE STREAMFISHES OF THE UPPER REACHES OF THE  

E-Print Network [OSTI]

A SURVEY OF THE STREAMFISHES OF THE UPPER REACHES OF THE NGERMESKANG RIVER, PALAU of the Ngermeskang River, Palau, with Recommendations for Conservation and Monitoring, by Stephen G. Nelson, Barry D Station, Mangilao, Guam 96923 Introduction This work was carried out in response to a request of the Palau

Mcilwain, Jenny

156

IIT Architecture NOWNESS is our approach. One that attempts to reach a di-  

E-Print Network [OSTI]

NOWNESS 2013 2014 IIT Architecture Chicago #12;NOWNESS is our approach. One that attempts to reach a di- verse audience; one that demonstrates architecture's multidis- ciplinary character; and one discipline. Architecture, today, is in demand. Now is the moment, and Chicago is the metropo- lis, in which

Heller, Barbara

157

The Reaches Project : Ecological and Geomorphic Dtudies Supporting Normative Flows in the Yakima River Basin, Washington, Final Report 2002.  

SciTech Connect (OSTI)

The Yakima River system historically produced robust annual runs of chinook, sockeye, chum and coho salmon and steelhead. Many different stocks or life history types existed because the physiography of the basin is diverse, ranging from very dry and hot in the high desert of the lower basin to cold and wet in the Cascade Mountains of the headwaters (Snyder and Stanford 2001). Habitat diversity and life history diversity of salmonids are closely correlated in the Yakima Basin. Moreover, habitat diversity for salmonids and many other fishes maximizes in floodplain reaches of river systems (Ward and Stanford 1995, Independent Scientific Group 2000). The flood plains of Yakima River likely were extremely important for spawning and rearing of anadromous salmonids (Snyder and Stanford 2001). However, Yakima River flood plains are substantially degraded. Primary problems are: revetments that disconnect main and side channel habitats; dewatering associated with irrigation that changes base flow conditions and degrades the shallow-water food web; chemical and thermal pollution that prevents proper maturation of eggs and juveniles; and extensive gravel mining within the floodplain reaches that has severed groundwater-channel connectivity, increased thermal loading and increased opportunities for invasions of nonnative species. The Yakima River is too altered from its natural state to allow anything close to the historical abundance and diversity of anadromous fishes. Habitat loss, overharvest and dam and reservoir passage problems in the mainstem Columbia River downstream of the Yakima, coupled with ocean productivity variation, also are implicated in the loss of Yakima fisheries. Nonetheless, in an earlier analysis, Snyder and Stanford (2001) concluded that a significant amount of physical habitat remains in the five floodplain reaches of the mainstem river because habitat-structuring floods do still occur on the remaining expanses of floodplain environment. Assuming main stem and ocean bottlenecks are not overriding, restoration of floodplain connectivity by elevating base flows throughout the corridor, removing revetments and refilling gravel pits by natural riverine transport of gravel where possible could be successful in substantially enhancing Yakima salmon and steelhead runs. Hence, the overarching purpose of this research was to determine the ecology of major floodplain reaches of the Yakima River: Cle Elum, Kittitas, Naches, Union Gap and Wapato. Specifically, the study documented groundwater-channel connectivity and flow relations; use and quality of side channel and other floodplain habitats by salmonid fishes; and classification and analysis of floodplain habitat using remote sensing and documentation of geomorphic processes, required for a robust understanding of the feasibility of revetment removal and establishment of a normative flow regime for the mainstem river.

Stanford, Jack A.; Lorang, Mark N.; Matson, Phillip L. (University of Montana, Flathead Lake Biological Station, Poison, MT)

2002-10-01T23:59:59.000Z

158

Reversed Doppler effect in double negative metamaterials  

Science Journals Connector (OSTI)

Doppler shifts in double negative metamaterials have never been observed. This Rapid Communication presents experimental results on Doppler effect in a double negative acoustic metamaterial. We observed that frequency was downshifted when the source was approaching and upshifted when receding. Notably, while in ordinary media wavelengths corresponding to downshifted frequencies are longer, we demonstrate that in double negative metamaterials wavelengths increase as the frequencies increase. Consequently even though the frequencies were downshifted in front of the moving source, the wavelengths became shorter.

Sam Hyeon Lee; Choon Mahn Park; Yong Mun Seo; Chul Koo Kim

2010-06-14T23:59:59.000Z

159

Redd Site Selection and Spawning Habitat Use by Fall Chinook Salmon, Hanford Reach, Columbia River : Final Report 1995 - 1998.  

SciTech Connect (OSTI)

This report summarizes results of research activities conducted from 1995 through 1998 on identifying the spawning habitat requirements of fall chinook salmon (Oncorhynchus tshawytscha) in the Hanford Reach of the Columbia River. The project investigated whether traditional spawning habitat models could be improved in order to make better predictions of available habitat for fall chinook salmon in the Snake River. Results suggest models could be improved if they used spawning area-specific, rather than river-specific, spawning characteristics; incorporated hyporheic discharge measurements; and gave further consideration to the geomorphic features that are present in the unconstrained segments of large alluvial rivers. Ultimately the recovery of endangered fall chinook salmon will depend on how well we are able to recreate the characteristics once common in alluvial floodplains of large rivers. The results from this research can be used to better define the relationship between these physical habitat characteristics and fall chinook salmon spawning site selection, and provide more efficient use of limited recovery resources. This report is divided into four chapters which were presented in the author's doctoral dissertation which he completed through the Department of Fisheries and Wildlife at Oregon State University. Each of the chapters has been published in peer reviewed journals or is currently under review. Chapter one is a conceptual spawning habitat model that describes how geomorphic features of river channels create hydraulic processes, including hyporheic flows, that influence where salmon spawn in unconstrained reaches of large mainstem alluvial rivers. Chapter two describes the comparison of the physical factors associated with fall chinook salmon redd clusters located at two sites within the Reach. Spatial point pattern analysis of redds showed that redd clusters averaged approximately 10 hectares in area and their locations were consistent from year to year. The tendency to spawn in clusters suggests fall chinook salmon's use of spawning habitat is highly selective. Hydraulic characteristics of the redd clusters were significantly different than the habitat surrounding them. Velocity and lateral slope of the river bottom were the most important habitat variables in predicting redd site selection. While these variables explained a large proportion of the variance in redd site selection (86 to 96%), some unmeasured factors still accounted for a small percentage of actual spawning site selection. Chapter three describes the results from an investigation into the hyporheic characteristics of the two spawning areas studied in chapter two. This investigation showed that the magnitude and chemical characteristics of hyporheic discharge were different between and within two spawning areas. Apparently, fall chinook salmon used chemical and physical cues from the discharge to locate spawning areas. Finally, chapter four describes a unique method that was developed to install piezometers into the cobble bed of the Columbia River.

Geist, David R.

1999-05-01T23:59:59.000Z

160

DOUBLE-LINED SPECTROSCOPIC BINARY STARS IN THE RAVE SURVEY  

SciTech Connect (OSTI)

We devise a new method for the detection of double-lined binary stars in a sample of the Radial Velocity Experiment (RAVE) survey spectra. The method is both tested against extensive simulations based on synthetic spectra and compared to direct visual inspection of all RAVE spectra. It is based on the properties and shape of the cross-correlation function, and is able to recover {approx}80% of all binaries with an orbital period of order 1 day. Systems with periods up to 1 yr are still within the detection reach. We have applied the method to 25,850 spectra of the RAVE second data release and found 123 double-lined binary candidates, only eight of which are already marked as binaries in the SIMBAD database. Among the candidates, there are seven that show spectral features consistent with the RS CVn type (solar type with active chromosphere) and seven that might be of W UMa type (over-contact binaries). One star, HD 101167, seems to be a triple system composed of three nearly identical G-type dwarfs. The tested classification method could also be applicable to the data of the upcoming Gaia mission.

Matijevic, G.; Zwitter, T. [Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana (Slovenia); Munari, U.; Siviero, A. [INAF Osservatorio Astronomico di Padova, Asiago (Italy); Bienayme, O.; Siebert, A. [Observatorie de Strasbourg, Strasbourg (France); Binney, J. [Rudolf Pierls Center for Theoretical Physics, University of Oxford, Oxford (United Kingdom); Bland-Hawthorn, J. [Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney (Australia); Boeche, C.; Steinmetz, M. [Astrophysikalisches Institut Potsdam, Potsdam (Germany); Campbell, R. [Western Kentucky University, Bowling Green, KY (United States); Freeman, K. C. [RSAA, Australian National University, Camberra (Australia); Gibson, B. [University of Central Lancashire, Preston (United Kingdom); Gilmore, G. [Institute of Astronomy, Cambridge (United Kingdom); Grebel, E. K. [Astronomisches Rechen-Institut, Zentrum fuer Astronomie der Universitaet Heidelberg, Heidelberg (Germany); Helmi, A. [Kapteyn Astronomical Institute, University of Groningen, Groningen (Netherlands); Navarro, J. F. [University of Victoria, Victoria (Canada); Parker, Q. A. [Macquarie University, Sydney (Australia); Seabroke, G. M. [e2v Centre for Electronic Imaging, Planetary and Space Sciences Research Institute, Open University, Walton Hall, Milton Keynes (United Kingdom); Watson, F. G., E-mail: gal.matijevic@fmf.uni-lj.s [Anglo-Australian Observatory, Sydney (Australia)

2010-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Energy Dept. Reports: U.S. Wind Energy Production and Manufacturing Reaches  

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

Dept. Reports: U.S. Wind Energy Production and Manufacturing Dept. Reports: U.S. Wind Energy Production and Manufacturing Reaches Record Highs Energy Dept. Reports: U.S. Wind Energy Production and Manufacturing Reaches Record Highs August 6, 2013 - 8:00am Addthis WASHINGTON - The Energy Department released two new reports today showcasing record growth across the U.S. wind market -- increasing America's share of clean, renewable energy and supporting tens of thousands of jobs nationwide. According to these reports, the United States continues to be one of the world's largest and fastest growing wind markets. In 2012, wind energy became the number one source of new U.S. electricity generation capacity for the first time - representing 43 percent of all new electric additions and accounting for $25 billion in U.S. investment.

162

Moab Mill Tailings Pile 25 Percent Disposed: DOE Moab Project Reaches  

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

Mill Tailings Pile 25 Percent Disposed: DOE Moab Project Mill Tailings Pile 25 Percent Disposed: DOE Moab Project Reaches Significant Milestone Moab Mill Tailings Pile 25 Percent Disposed: DOE Moab Project Reaches Significant Milestone June 3, 2011 - 12:00pm Addthis Media Contacts Donald Metzler Moab Federal Project Director (970) 257-2115 Wendee Ryan S&K Aerospace Public Affairs Manager (970) 257-2145 Grand Junction, CO - One quarter of the uranium mill tailings pile located in Moab, Utah, has been relocated to the Crescent Junction, Utah, site for permanent disposal. Four million tons of the 16 million tons total has been relocated under the Uranium Mill Tailings Remedial Action Project managed by the U.S. Department of Energy (DOE). A little over 2 years ago, Remedial Action Contractor EnergySolutions began

163

Microsoft Word - CX-RockyReach-MapleValley_Bridge_FY12_WEB.docx  

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

KEPR-4 KEPR-4 SUBJECT: Environmental Clearance Memorandum Richard Ross Project Manager - TELF-TPP-3 Proposed Action: Rocky Reach-Maple Valley #1 Temporary Bridge Installation (116/4-117/1) PP&A Project No.: 2203 Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.3 Routine maintenance. Location: The project area is confined to the existing access road located to the south of the right-of-way corridor of Bonneville Power Administration's (BPA) Rocky Reach-Maple Valley 345-kV transmission line between miles 116-117. The proposed project, located in King County, Washington, is within BPA's Covington District. Proposed by: BPA Description of the Proposed Action: BPA is proposing to construct a temporary bridge over

164

Double perovskite catalysts for oxidative coupling  

DOE Patents [OSTI]

Alkali metal doped double perovskites containing manganese and at least one of cobalt, iron and nickel are useful in the oxidative coupling of alkane to higher hydrocarbons.

Campbell, K.D.

1991-01-01T23:59:59.000Z

165

Review of double beta decay experiments  

E-Print Network [OSTI]

The brief review of current experiments on search and studying of double beta decay processes is done. Best present limits on $\\langle m_{\

A. S. Barabash

2014-03-12T23:59:59.000Z

166

Review of double beta decay experiments  

E-Print Network [OSTI]

The brief review of current experiments on search and studying of double beta decay processes is done. Best present limits on $\\langle m_{\

Barabash, A S

2014-01-01T23:59:59.000Z

167

SUMMER FISH ASSEMBLAGES IN CHANNELIZED AND UNCHANNELIZED REACHES OF THE SOUTH SULPHUR RIVER, TEXAS  

E-Print Network [OSTI]

TWRI TR-257 SUMMER FISH ASSEMBLAGES IN CHANNELIZED AND UNCHANNELIZED REACHES OF THE SOUTH SULPHUR RIVER, TEXAS A Thesis by CHRISTINE CONNER BURGESS Submitted to the Office of Graduate Studies of Texas A&M University... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2003 Major Subject: Wildlife and Fisheries Sciences Texas Water Resources Institute (TWRI) Technical Report 244 SUMMER FISH ASSEMBLAGES...

BURGESS, CHRISTINE CONNER

168

Can we make a Bohmian electron reach the speed of light, at least for one instant?  

SciTech Connect (OSTI)

In Bohmian mechanics, a version of quantum mechanics that ascribes world lines to electrons, we can meaningfully ask about an electron's instantaneous speed relative to a given inertial frame. Interestingly, according to the relativistic version of Bohmian mechanics using the Dirac equation, a massive particle's speed is less than or equal to the speed of light, but not necessarily less. That is, there are situations in which the particle actually reaches the speed of light--a very nonclassical behavior. That leads us to the question of whether such situations can be arranged experimentally. We prove a theorem, Theorem 5, implying that for generic initial wave functions the probability that the particle ever reaches the speed of light, even if at only one point in time, is zero. We conclude that the answer to the question is no. Since a trajectory reaches the speed of light whenever the quantum probability current {psi}{gamma}{sup {mu}{psi}} is a lightlike 4-vector, our analysis concerns the current vector field of a generic wave function and may thus be of interest also independently of Bohmian mechanics. The fact that the current is never spacelike has been used to argue against the possibility of faster-than-light tunneling through a barrier, a somewhat similar question. Theorem 5, as well as a more general version provided by Theorem 6, are also interesting in their own right. They concern a certain property of a function {psi}:R{sup 4}{yields}C{sup 4} that is crucial to the question of reaching the speed of light, namely being transverse to a certain submanifold of C{sup 4} along a given compact subset of space-time. While it follows from the known transversality theorem of differential topology that this property is generic among smooth functions {psi}:R{sup 4}{yields}C{sup 4}, Theorem 5 asserts that it is also generic among smooth solutions of the Dirac equation.

Tausk, Daniel V. [Departamento de Matematica, Universidade de Sao Paulo, Rua do Matao 1010, Cidade Universitaria, CEP 05508-090 Sao Paulo - SP (Brazil); Tumulka, Roderich [Department of Mathematics, Hill Center, Rutgers University, 110 Frelinghuysen Road, Piscataway, New Jersey 08854-8019 (United States)

2010-12-15T23:59:59.000Z

169

Can We Make a Bohmian Electron Reach the Speed of Light, at Least for One Instant?  

E-Print Network [OSTI]

In Bohmian mechanics, a version of quantum mechanics that ascribes world lines to electrons, we can meaningfully ask about an electron's instantaneous speed relative to a given inertial frame. Interestingly, according to the relativistic version of Bohmian mechanics using the Dirac equation, a massive particle's speed is less than or equal to the speed of light, but not necessarily less. That is, there are situations in which the particle actually reaches the speed of light---a very non-classical behavior. That leads us to the question of whether such situations can be arranged experimentally. We prove a theorem, Theorem 5, implying that for generic initial wave functions the probability that the particle ever reaches the speed of light, even if at only one point in time, is zero. We conclude that the answer to the question is no. Since a trajectory reaches the speed of light whenever the quantum probability current psi-bar gamma^mu psi is a lightlike 4-vector, our analysis concerns the current vector field of a generic wave function and may thus be of interest also independently of Bohmian mechanics. The fact that the current is never spacelike has been used to argue against the possibility of faster-than-light tunnelling through a barrier, a somewhat similar question. Theorem 5, as well as a more general version provided by Theorem 6, are also interesting in their own right. They concern a certain property of a function psi: R^4 --> C^4 that is crucial to the question of reaching the speed of light, namely being transverse to a certain submanifold of C^4 along a given compact subset of space-time. While it follows from the known transversality theorem of differential topology that this property is generic among smooth functions psi: R^4 --> C^4, Theorem 5 asserts that it is also generic among smooth solutions of the Dirac equation.

Daniel V. Tausk; Roderich Tumulka

2008-06-27T23:59:59.000Z

170

Reach of CERN LEP2 and Fermilab Tevatron upgrades for Higgs bosons in supersymmetric models  

Science Journals Connector (OSTI)

Luminosity upgrades of the Fermilab Tevatron pp¯ collider have been shown to allow experimental detection of a standard model (SM) Higgs boson up to mHSM?120 GeV via WHSM?l?bb¯ events. This limit nearly saturates the parameter space for many models of weak scale supersymmetry (SUSY) with a minimal particle content. It is therefore interesting to examine the SUSY Higgs reach of future Tevatron experiments. Contours are presented of Higgs boson reach for CERN LEP2 and Tevatron luminosity upgrades for three models of weak scale SUSY: the minimal supersymmetric standard model, the minimal supergravity model and a simple gauge mediated SUSY breaking model. In each case we find a substantial gain in reach at the Tevatron with integrated luminosity increasing from 10 fb-1 to 25–30 fb-1. With the larger integrated luminosity, a Higgs boson search at the Tevatron should be able to probe essentially the entire parameter space of these models. While a discovery would be very exciting, a negative result would severely constrain our ideas about how weak scale supersymmetry is realized.

Howard Baer, B. W. Harris, and Xerxes Tata

1998-11-19T23:59:59.000Z

171

Neutrinoless double-beta decay and seesaw mechanism  

E-Print Network [OSTI]

From the standard seesaw mechanism of neutrino mass generation, which is based on the assumption that the lepton number is violated at a large (~10exp(+15) GeV) scale, follows that the neutrinoless double-beta decay is ruled by the Majorana neutrino mass mechanism. Within this notion, for the inverted neutrino-mass hierarchy we derive allowed ranges of half-lives of the neutrinoless double-beta decay for nuclei of experimental interest with different sets of nuclear matrix elements. The present-day results of the calculation of the neutrinoless double-beta decay nuclear matrix elements are briefly discussed. We argue that if neutrinoless double-beta decay will be observed in future experiments sensitive to the effective Majorana mass in the inverted mass hierarchy region, a comparison of the derived ranges with measured half-lives will allow us to probe the standard seesaw mechanism assuming that future cosmological data will establish the sum of neutrino masses to be about 0.2 eV.

Samoil M. Bilenky; Amand Faessler; Walter Potzel; Fedor Simkovic

2011-04-11T23:59:59.000Z

172

Comparing Double String Theory Actions  

E-Print Network [OSTI]

Aimed to a deeper comprehension of a manifestly T-dual invariant formulation of string theory, in this paper a detailed comparison between the non-covariant action proposed by Tseytlin and the covariant one proposed by Hull is done. These are obtained by making both the string coordinates and their duals explicitly appear, on the same foot, in the world-sheet action, so "doubling" the string coordinates along the compact dimensions. After a discussion of the nature of the constraints in both the models and the relative quantization, it results that the string coordinates and their duals behave like "non-commuting" phase space type coordinates but their expressions in terms of Fourier modes generate the oscillator algebra of the standard bosonic string formulation. A proof of the equivalence of the two formulations is given. Furthermore, open-string solutions are also discussed.

Luca De Angelis; S. J. Gabriele Gionti; Raffaele Marotta; Franco Pezzella

2013-12-27T23:59:59.000Z

173

Double superexchange in quantum dot mesomaterials  

E-Print Network [OSTI]

as the critical obstacles to dramatic enhancements in the energy conversion efficiency of photovoltaic cells based.7­10 A low binding energy allows excitons to thermally dissociate and charge carriers hop from dot exhibits a double superexchange. In addition to enhancing carrier hopping rates, double superexchange plays

Wu, Zhigang

174

Double beta decay: experiments and theory review  

E-Print Network [OSTI]

Neutrinoless double beta decay is one of the most powerful tools to set the neutrino mass absolute scale and establish whether the neutrino is a Majorana particle. After a summary of the neutrinoless double beta decay phenomenology, the present status of the experimental search for this rare decay is reported and the prospects for next generation experiments are reviewed.

A. Nucciotti

2007-07-15T23:59:59.000Z

175

Robot-assisted reaching exercise promotes arm movement recovery in chronic hemiparetic stroke: a randomized controlled pilot study  

E-Print Network [OSTI]

AN, Kahn LE: Design of robot assistance for arm movementOpen Access Research Robot-assisted reaching exercisemovements more than the robot-assisted group. Conclusion:

Kahn, Leonard E; Zygman, Michele L; Rymer, W Zev; Reinkensmeyer, David J

2006-01-01T23:59:59.000Z

176

Double-winding Wilson loops and monopole confinement mechanisms  

E-Print Network [OSTI]

We consider "double-winding" Wilson loops in SU(2) gauge theory. These are contours which wind once around a loop $C_1$ and once around a loop $C_2$, where the two co-planar loops share one point in common, and where $C_1$ lies entirely in (or is displaced slightly from) the minimal area of $C_2$. We discuss the expectation value of such double-winding loops in abelian confinement pictures, where the spatial distribution of confining abelian fields is controlled by either a monopole Coulomb gas, a caloron ensemble, or a dual abelian Higgs model, and argue that in such models an exponential falloff in the sum of areas $A_1+A_2$ is expected. In contrast, in a center vortex model of confinement, the behavior is an exponential falloff in the difference of areas $A_2-A_1$. We compute such double-winding loops by lattice Monte Carlo simulation, and find that the area law falloff follows a difference-in-areas law. The conclusion is that even if confining gluonic field fluctuations are, in some gauge, mainly abelian ...

Greensite, Jeff

2014-01-01T23:59:59.000Z

177

Double-winding Wilson loops and monopole confinement mechanisms  

E-Print Network [OSTI]

We consider "double-winding" Wilson loops in SU(2) gauge theory. These are contours which wind once around a loop $C_1$ and once around a loop $C_2$, where the two co-planar loops share one point in common, and where $C_1$ lies entirely in (or is displaced slightly from) the minimal area of $C_2$. We discuss the expectation value of such double-winding loops in abelian confinement pictures, where the spatial distribution of confining abelian fields is controlled by either a monopole Coulomb gas, a caloron ensemble, or a dual abelian Higgs model, and argue that in such models an exponential falloff in the sum of areas $A_1+A_2$ is expected. In contrast, in a center vortex model of confinement, the behavior is an exponential falloff in the difference of areas $A_2-A_1$. We compute such double-winding loops by lattice Monte Carlo simulation, and find that the area law falloff follows a difference-in-areas law. The conclusion is that even if confining gluonic field fluctuations are, in some gauge, mainly abelian in character, the spatial distribution of those abelian fields cannot be the distribution predicted by the simple monopole gas, caloron ensemble, or dual abelian Higgs actions, which have been used in the past to explain the area law falloff of Wilson loops.

Jeff Greensite; Roman Höllwieser

2014-11-19T23:59:59.000Z

178

What can we learn from neutrinoless double beta decay experiments?  

E-Print Network [OSTI]

312 P. Vogel, “Limits From Neutrinoless Double-Beta Decay (Assumptions No detected neutrinoless double ?-decay lightestscale (1 ± 0.05 eV), No neutrinoless double ?-decay lightest

Bahcall, John N.

2009-01-01T23:59:59.000Z

179

A Search for Neutrinoless Double Beta Decay of Te-130  

E-Print Network [OSTI]

Bolometric experiments for neutrinoless double beta 3.2.1A Search for Neutrinoless Double Beta Decay of Te by AdamSpring 2010 A Search for Neutrinoless Double Beta Decay of

Bryant, Adam Douglas

2010-01-01T23:59:59.000Z

180

Neutrinoless Double Beta Decay in Light of SNO Salt Data  

E-Print Network [OSTI]

14] P. Vogel, “Limits From Neutrinoless Double-Beta Decay (Higgs, can also cause neutrinoless double-beta decay (seeLBNL-53996 Neutrinoless Double Beta Decay in Light of SNO

Murayama, Hitoshi

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Thermal simulation of buildings with double-skin façades  

Science Journals Connector (OSTI)

Highly glazed commercial buildings with double-skin façades may overheat during summertime due to a coincidence of high outside temperatures, solar gains and internal heat gains. To optimize thermal comfort and minimize cooling loads, the thermal behaviour of this type of building, therefore, requires careful investigation at the design stage. However, complex physical phenomena—notably optical, thermodynamic and fluid dynamic processes—are involved and as yet, no single simulation tool is able to handle all these processes while remaining an efficient design tool. This paper presents a method based on the coupling of three different types of simulation models that is economical in terms of computing time, and thereby, suitable for design purposes. These models are: spectral optical model, computational fluid dynamics model and building energy simulation model. Various tools are available at each modelling level. The method is demonstrated on a commercial building with double-skin façades and additionally, night-time ventilation.

H. Manz; Th. Frank

2005-01-01T23:59:59.000Z

182

Neutrinoless Double Beta Decay in Heavy Deformed Nuclei  

E-Print Network [OSTI]

The zero neutrino mode of the double beta decay in heavy deformed nuclei is investigated in the framework of the pseudo SU(3) model, which has provided an accurate description of collective nuclear structure and predicted half-lives for the two neutrino mode in good agreement with experiments. In the case of $^{238}U$ the calculated zero neutrino half-life is at least three orders of magnitude greater than the two neutrino one, giving strong support of the identification of the radiochemically determined half-life as being the two neutrino double beta decay. For $^{150}Nd$ the zero neutrino matrix elements are of the order of magnitude of, but lesser than, those evaluated using the QRPA. This result confirms that different nuclear models produce similar zero neutrino matrix elements, contrary to the two neutrino case. Using these pseudo SU(3) results and the upper limit for the neutrino mass we estimate the $\\beta\\beta_{0\

Jorge G. Hirsch; O. Castaños; P. O. Hess

1994-07-12T23:59:59.000Z

183

Results of the double beta decay experiment NEMO-3  

SciTech Connect (OSTI)

The double beta decay experiment NEMO-3 has taken data from February 2003 to January 2011. The two-neutrino decay half lives were measured for seven different isotopes ({sup 100}Mo, {sup 82}Se, {sup 116}Cd, {sup 150}Nd, {sup 96}Zr, {sup 48}Ca and {sup 130}Te). No evidence for neutrinoless double beta decay is observed. The 0??? half-life limits are found to be T{sub 1/2}{sup 0?}({sup 100}Mo)>1.0×10{sup 24}yr(90%C.L.) and T{sub 1/2}{sup 0?}({sup 82}Se)>3.2×10{sup 23}yr(90%C.L.)

Tretyak, V. I. [Joint Institute for Nuclear Research, 6 Joliot Curie, Dubna (Russian Federation); Collaboration: NEMO-3 Collaboration

2013-12-30T23:59:59.000Z

184

Structural design of double hull tankers  

SciTech Connect (OSTI)

After a brief introduction of structural design procedure for double hull tankers, their design features are firstly highlighted comparing with conventional single hull tankers. Next discussed are recent topics of double hull VLCC (Very Large Crude oil Carrier) including higher tensile steel and strut arrangement in transverse ring frames. Finally ultimate longitudinal strength of hull girder is analyzed through a simplified method under both sagging and hogging conditions. Making use of this result, some considerations are made on structural reliability of double hull VLCC.

Niho, O.; Yanagibayashi, S.; Akashi, T. [Mitsui Engineering and Shipbuilding Co., Ltd., Tokyo (Japan)

1994-12-31T23:59:59.000Z

185

Smectic Order in Double-Twist Cylinders  

E-Print Network [OSTI]

I propose a double-twist texture with local smectic order, which may have been seen in recent experiments. As in the Renn-Lubensky TGB phase, the smectic order is broken only through a lattice of screw dislocations. A melted lattice of screw dislocations can produce a double-twist texture as can an unmelted lattice. In the latter case I show that geometry only allows for certain angles between smectic regions. I discuss the possibility of connecting these double-twist tubes together to form a smectic blue phase.

Randall D. Kamien

1996-11-04T23:59:59.000Z

186

Photo double ionization of ethylene and acetylene near threshold  

E-Print Network [OSTI]

Photo double ionization of ethylene and acetylene nearcomplete measurements of the photo double ionization ofkinetic energy of the photo electrons and the nuclear

Gaire, B.

2014-01-01T23:59:59.000Z

187

National CHP Roadmap: Doubling Combined Heat and Power Capacity...  

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

National CHP Roadmap: Doubling Combined Heat and Power Capacity in the United States by 2010, March 2001 National CHP Roadmap: Doubling Combined Heat and Power Capacity in the...

188

Photo double ionization of ethylene and acetylene near threshold  

E-Print Network [OSTI]

double ionization of ethylene and acetylene near thresholdphoto double ionization of ethylene (dou- ble CC bond) andsimilar yields of metastable ethylene dications produced by

Gaire, B.

2014-01-01T23:59:59.000Z

189

Molecular Dynamics Study of the Electrical Double Layer at Silver...  

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

Electrical Double Layer at Silver Chloride Electrolyte Interfaces. Molecular Dynamics Study of the Electrical Double Layer at Silver Chloride Electrolyte Interfaces. Abstract:...

190

Search for: "neutrinoless double beta decay" | DOE PAGES  

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191

General Insights into Structural Evolution of Layered Double Hydroxide: Underlying Aspects in Topochemical Transformation from Brucite to Layered Double Hydroxide  

Science Journals Connector (OSTI)

General Insights into Structural Evolution of Layered Double Hydroxide: Underlying Aspects in Topochemical Transformation from Brucite to Layered Double Hydroxide ... The topochemical transformation from transition-metal brucite hydroxide (Co1-xFex(OH)2, Co(OH)2, Co1-xNix(OH)2) to corresponding (Co2+–(Co3+)–Fe3+, Co2+–(Ni2+)–Co3+) LDH under oxidizing halogen agents (iodine, bromine) exhibits different staging phenomena depending on the metallic composition/ratio in starting brucite. ... A plausible charge hopping mechanism based on valence interchange between redoxable charge center (Fe3+/Co3+) and neighboring divalent sites in the host sheet is proposed to understand the restoration of electron donor sites at the interface between brucite crystallites and halogen agents, which ensures a continual oxidative reaction, and a staged intercalation/diffusion of in situ reduced halide anions into the interlayer gallery commensurate with the host charge propagation. ...

Renzhi Ma; Jianbo Liang; Xiaohe Liu; Takayoshi Sasaki

2012-11-08T23:59:59.000Z

192

Electronic Structure and Field Emission Properties of Double-Walled Carbon Nanotubes Synthesized by Hydrogen Arc Discharge  

Science Journals Connector (OSTI)

Electronic Structure and Field Emission Properties of Double-Walled Carbon Nanotubes Synthesized by Hydrogen Arc Discharge ... 36-38 By the way, as shown in Figure 6a, the current density of DWCNTs shows much lower level than that of SWCNTs in a low electric field region below 4 V/?m, but it reaches a slightly higher level in a medium electric field region of 4?6 V/?m. ...

Byeongchul Ha; Dong Hoon Shin; Jeunghee Park; Cheol Jin Lee

2007-12-22T23:59:59.000Z

193

Evaluation of the aquatic habitat and fish assemblage in an urban reach of the historic Rideau Canal, Ottawa,  

E-Print Network [OSTI]

Evaluation of the aquatic habitat and fish assemblage in an urban reach of the historic Rideau communities, particularly in the urban reach in Ottawa between Hartwell's Lock and the outflow of Dows Lake natural and engineered habitat/substrate types across the period when the canal is at navigational water

Cooke, Steven J.

194

Double-Disk Dark Matter  

Science Journals Connector (OSTI)

Abstract Based on observational tests of large scale structure and constraints on halo structure, dark matter is generally taken to be cold and essentially collisionless. On the other hand, given the large number of particles and forces in the visible world, a more complex dark sector could be a reasonable or even likely possibility. This hypothesis leads to testable consequences, perhaps portending the discovery of a rich hidden world neighboring our own. We consider a scenario that readily satisfies current bounds that we call Partially Interacting Dark Matter (PIDM). This scenario contains self-interacting dark matter, but it is not the dominant component. Even if PIDM contains only a fraction of the net dark matter density, comparable to the baryonic fraction, the subdominant component’s interactions can lead to interesting and potentially observable consequences. Our primary focus will be the special case of Double-Disk Dark Matter (DDDM), in which self-interactions allow the dark matter to lose enough energy to lead to dynamics similar to those in the baryonic sector. We explore a simple model in which DDDM can cool efficiently and form a disk within galaxies, and we evaluate some of the possible observational signatures. The most prominent signal of such a scenario could be an enhanced indirect detection signature with a distinctive spatial distribution. Even though subdominant, the enhanced density at the center of the galaxy and possibly throughout the plane of the galaxy (depending on precise alignment) can lead to large boost factors, and could even explain a signature as large as the 130 GeV Fermi line. Such scenarios also predict additional dark radiation degrees of freedom that could soon be detectable and would influence the interpretation of future data, such as that from Planck and from the Gaia satellite. We consider this to be the first step toward exploring a rich array of new possibilities for dark matter dynamics.

JiJi Fan; Andrey Katz; Lisa Randall; Matthew Reece

2013-01-01T23:59:59.000Z

195

Double-detonation supernovae of sub-Chandrasekhar mass white dwarfs  

E-Print Network [OSTI]

In the "double-detonation sub-Chandrasekhar" model for type Ia supernovae, a carbon-oxygen (C + O) white dwarf accumulates sufficient amounts of helium such that a detonation ignites in that layer before the Chandrasekhar mass is reached. This detonation is thought to trigger a secondary detonation in the C + O core. By means of one- and two-dimensional hydrodynamic simulations, we investigate the robustness of this explosion mechanism for generic 1-M_sun models and analyze its observable predictions. Also a resolution dependence in numerical simulations is analyzed. The propagation of thermonuclear detonation fronts, both in helium and in the carbon-oxygen mixture, is computed by means of both a level-set function and a simplified description for nuclear reactions. The decision whether a secondary detonation is triggered in the white dwarf's core or not is made based on criteria given in the literature. In a parameter study involving different initial flame geometries for He-shell masses of 0.2 and 0.1 M_sun, we find that a secondary detonation ignition is a very robust process. Converging shock waves originating from the detonation in the He shell generate the conditions for a detonation near the center of the white dwarf in most of the cases considered. Finally, we follow the complete evolution of three selected models with 0.2 M_sun of He through the C/O-detonation phase and obtain nickel-masses of about 0.40 to 0.45 M_sun. Although we have not done a complete scan of the possible parameter space, our results show that sub-Chandrasekhar models are not good candidates for normal or sub-luminous type Ia supernovae. The chemical composition of the ejecta features significant amounts of nickel in the outer layers at high expansion velocities, which is inconsistent with near-maximum spectra. (abbreviated)

M. Fink; W. Hillebrandt; F. K. Roepke

2007-10-29T23:59:59.000Z

196

DOE CHALLENGE HOME and PHIUS PARTNER TO MAKE IT EASIER TO REACH  

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

CHALLENGE HOME CHALLENGE HOME and PHIUS PARTNER TO MAKE IT EASIER TO REACH NEW LEVELS OF ZERO NET-ENERGY READY This partnership between DOE and PHIUS enhances coordination between voluntary peak performance new home label programs to expedite market transformation to net-zero ready homes that are so energy efficient that small renewable energy systems can offset most or all annual energy consumption. Net-zero ready homes can help address climate change, economic, and energy security issues. By working together, we create a continuous path to net-zero ready performance with minimal confusion to the housing industry. This is a voluntary home label program recognizing homes that comply with PHIUS+ standards. Key requirements beyond DOE's Challenge Home specifications include:

197

NETL: News Release - Solid Oxide Fuel Cell Reaches One Year of Operations  

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

January 31, 2000 January 31, 2000 Solid Oxide Fuel Cell Reaches One Year of Operations Netherlands Test Boosts Confidence for Commercial Introduction by 2004 An experimental all solid-state fuel cell - the possible prototype for a future "combustion-less" power plant - has passed a key milestone in a joint public-private development effort. Schematic Diagram of Tubular Solid Oxide Fuel Cell The Siemens Westinghouse solid oxide fuel cell is a tubular arrangement of concentric ceramic electrodes and a solid-state electrolyte. Siemens-Westinghouse Power Corp., headquartered in Orlando, FL, announced this week that its 100-kilowatt solid oxide fuel cell power system, the world's largest, has completed one year of total operating time, the longest any fuel cell of this type and size has run. The milestone marked

198

Microsoft Word - CX-Rocky Reach-Maple Valley No1_WEB.doc  

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

3, 2010 3, 2010 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Darin Bowman Project Manager - TELF-TPP-3 Proposed Action: Rocky Reach-Maple Valley No. 1 mile 47 bridge replacement project Budget Information: Work Order # 219783 PP&A Project No.: 955 Proposed by: Bonneville Power Administration (BPA) Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.3, Routine maintenance activities for structures, rights-of-way, and infrastructures such as roads that are required to maintain infrastructures in a condition suitable for a facility to be used for its designed purpose. Location: BPA, in coordination with the Cle Elum Ranger District of the Okanogan-Wenatchee National Forest, is proposing to construct a bridge across Cold Creek. The proposed project is

199

Multiple-Isotope Comparison for Determining Neutrinoless Double-Beta Decay Mechanisms  

E-Print Network [OSTI]

We present a technique for estimating the number of future neutrinoless double-beta decay results using several distinct nuclei to optimize the physics reach of upcoming experiments. We use presently available matrix element calculations and simulated sets of predicted neutrinoless double-beta decay measured rates in multiple isotopes to estimate the required precision and number of experiments to discern the underlying physics governing the mechanism of the process. Our results indicate that 3 (4) experimental results with total uncertainty (statistical, systematic, theoretical) of less than ~20% (~40%) can elucidate the underlying physics. If the theoretical (i.e. matrix element) uncertainty contribution is below ~18%, then 3-4 experimental results of ~20% precision (statistical and systematic) are required. These uncertainty goals can be taken as guidance for the upcoming theoretical and experimental programs.

V. M. Gehman; S. R. Elliott

2007-01-12T23:59:59.000Z

200

Double Beta Decay Constraint on Composite Neutrinos  

Science Journals Connector (OSTI)

......Constraint on Composite Neutrinos Eiichi Takasugi Department of Physics, Osaka University, Toyonaka 560 Neutrinoless double beta decay (betabeta)0v occurs through the magnetic coupling of dimension five operator whose coupling constant is......

Eiichi Takasugi

1997-10-01T23:59:59.000Z

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201

Phenomenology of single and double diffraction dissociation  

E-Print Network [OSTI]

Predictions of the gap-probability renormalization model for single and double diffraction dissociation cross sections in proton-proton collisions at the LHC are presented and compared with recent CMS measurements.

Konstantin Goulianos

2013-10-21T23:59:59.000Z

202

Phenomenology of neutrinoless double beta decay  

E-Print Network [OSTI]

This paper reviews the current status and future outlook of neutrinoless double beta decay searches, which try to provide an answer to the fundamental question of whether neutrinos are Dirac or Majorana particles.

Gómez-Cadenas, J J

2015-01-01T23:59:59.000Z

203

Phenomenology of neutrinoless double beta decay  

E-Print Network [OSTI]

This paper reviews the current status and future outlook of neutrinoless double beta decay searches, which try to provide an answer to the fundamental question of whether neutrinos are Dirac or Majorana particles.

J. J. Gómez-Cadenas; Justo Martín-Albo

2015-02-02T23:59:59.000Z

204

Double Pomeron Physics at the LHC  

E-Print Network [OSTI]

I discuss central exclusive production, otherwise known as Double Pomeron Exchange, DPE, from the ISR through the Tevatron to the LHC. There I emphasize the interest of exclusive Higgs and WW/ZZ production.

Michael G. Albrow

2005-07-25T23:59:59.000Z

205

Neutrinoless double beta decay with scalar bilinears  

E-Print Network [OSTI]

One possible probe to physics beyond the standard model is to look for scalar bilinears, which couple to two fermions of the standard model. We point out that the scalar bilinears allow new diagrams contributing to the neutrinoless double beta decay. The upper bound on the neutrinoless double beta decay lifetime would then give new constraints on the ratio of the masses of these scalars to their couplings to the fermions.

H. V. Klapdor-Kleingrothaus; U. Sarkar

2002-11-18T23:59:59.000Z

206

Wavelength-doubling optical parametric oscillator  

DOE Patents [OSTI]

A wavelength-doubling optical parametric oscillator (OPO) comprising a type II nonlinear optical medium for generating a pair of degenerate waves at twice a pump wavelength and a plurality of mirrors for rotating the polarization of one wave by 90 degrees to produce a wavelength-doubled beam with an increased output energy by coupling both of the degenerate waves out of the OPO cavity through the same output coupler following polarization rotation of one of the degenerate waves.

Armstrong, Darrell J. (Albuquerque, NM); Smith, Arlee V. (Albuquerque, NM)

2007-07-24T23:59:59.000Z

207

Double shell tank waste analysis plan  

SciTech Connect (OSTI)

Waste analysis plan for the double shell tanks. SD-WM-EV-053 is Superseding SD-WM-EV-057.This document provides the plan for obtaining information needed for the safe waste handling and storage of waste in the Double Shell Tank Systems. In Particular it addresses analysis necessary to manage waste according to Washington Administrative Code 173-303 and Title 40, parts 264 and 265 of the Code of Federal Regulations.

Mulkey, C.H.; Jones, J.M.

1994-12-15T23:59:59.000Z

208

Shock waves and double layers in electron degenerate dense plasma with viscous ion fluids  

SciTech Connect (OSTI)

The properties of ion-acoustic shock waves and double layers propagating in a viscous degenerate dense plasma (containing inertial viscous ion fluid, non-relativistic and ultra-relativistic degenerate electron fluid, and negatively charged stationary heavy element) is investigated. A new nonlinear equation (viz. Gardner equation with additional dissipative term) is derived by the reductive perturbation method. The properties of the ion-acoustic shock waves and double layers are examined by the analysis of the shock and double layer solutions of this new equation (we would like to call it “M-Z equation”). It is found that the properties of these shock and double layer structures obtained from this analysis are significantly different from those obtained from the analysis of standard Gardner or Burgers’ equation. The implications of our results to dense plasmas in astrophysical objects (e.g., non-rotating white dwarf stars) are briefly discussed.

Mamun, A. A. [Department of Physics, Jahangirnagar University, Savar (Bangladesh)] [Department of Physics, Jahangirnagar University, Savar (Bangladesh); Zobaer, M. S. [Department of Applied Science, Bangladesh University of Textiles, Tejgaon (Bangladesh)] [Department of Applied Science, Bangladesh University of Textiles, Tejgaon (Bangladesh)

2014-02-15T23:59:59.000Z

209

Search for neutrinoless double-beta decay of Ge-76 with GERDA  

E-Print Network [OSTI]

GERDA, the GERmanium Detector Array experiment, is a new double beta-decay experiment which is currently under construction in the INFN National Gran Sasso Laboratory (LNGS), Italy. It is implementing a new shielding concept by operating bare Ge diodes - enriched in Ge-76 - in high purity liquid argon supplemented by a water shield. The aim of GERDA is to verify or refute the recent claim of discovery, and, in a second phase, to achieve a two orders of magnitude lower background index than recent experiments. The paper discusses motivation, physics reach, design and status of construction of GERDA, and presents some R&D results.

Karl-Tasso Knoepfle

2008-09-30T23:59:59.000Z

210

Exploring the Neutrinoless Double Beta Decay in the Inverted Neutrino Hierarchy with Bolometric Detectors  

E-Print Network [OSTI]

Neutrinoless double beta decay (0nubb) is one of the most sensitive probes for physics beyond the Standard Model, providing unique information on the nature of neutrinos. In this paper we review the status and outlook for bolometric 0nubb decay searches. We summarize recent advances in background suppression demonstrated using bolometers with simultaneous readout of heat and light signals. We simulate several configurations of a future CUORE-like bolometer array which would utilize these improvements and present the sensitivity reach of a hypothetical next-generation bolometric 0nubb experiment. We demonstrate that a bolometric experiment with the isotope mass of about 1 ton is capable of reaching the sensitivity to the effective Majorana neutrino mass (|mee|) of order 10-20 meV, thus completely exploring the so-called inverted neutrino mass hierarchy region. We highlight the main challenges and identify priorities for an R&D program addressing them.

D. R. Artusa; F. T. Avignone III; O. Azzolini; M. Balata; T. I. Banks; G. Bari; J. Beeman; F. Bellini; A. Bersani; M. Biassoni; C. Brofferio; C. Bucci; X. Z. Cai; A. Camacho; L. Canonica; X. G. Cao; S. Capelli; L. Carbone; L. Cardani; M. Carrettoni; N. Casali; D. Chiesa; N. Chott; M. Clemenza; C. Cosmelli; O. Cremonesi; R. J. Creswick; I. Dafinei; A. Dally; V. Datskov; A. De Biasi; M. M. Deninno; S. Di Domizio; M. L. di Vacri; L. Ejzak; D. Q. Fang; H. A. Farach; M. Faverzani; G. Fernandes; E. Ferri; F. Ferroni; E. Fiorini; M. A. Franceschi; S. J. Freedman; B. K. Fujikawa; A. Giachero; L. Gironi; A. Giuliani; J. Goett; P. Gorla; C. Gotti; T. D. Gutierrez; E. E. Haller; K. Han; K. M. Heeger; R. Hennings-Yeomans; H. Z. Huang; R. Kadel; K. Kazkaz; G. Keppel; Yu. G. Kolomensky; Y. L. Li; C. Ligi; X. Liu; Y. G. Ma; C. Maiano; M. Maino; M. Martinez; R. H. Maruyama; Y. Mei; N. Moggi; S. Morganti; T. Napolitano; S. Nisi; C. Nones; E. B. Norman; A. Nucciotti; T. O'Donnell; F. Orio; D. Orlandi; J. L. Ouellet; M. Pallavicini; V. Palmieri; L. Pattavina; M. Pavan; M. Pedretti; G. Pessina; V. Pettinacci; G. Piperno; C. Pira; S. Pirro; E. Previtali; V. Rampazzo; C. Rosenfeld; C. Rusconi; E. Sala; S. Sangiorgio; N. D. Scielzo; M. Sisti; A. R. Smith; L. Taffarello; M. Tenconi; F. Terranova; W. D. Tian; C. Tomei; S. Trentalange; G. Ventura; M. Vignati; B. S. Wang; H. W. Wang; L. Wielgus; J. Wilson; L. A. Winslow; T. Wise; A. Woodcraft; L. Zanotti; C. Zarra; B. X. Zhu; S. Zucchelli

2014-04-17T23:59:59.000Z

211

Nuclear Spin Relaxation and Double Resonance in HD Gas  

Science Journals Connector (OSTI)

Nuclear magnetic double-resonance experiments were performed on a gaseous sample containing a mixture of HD and CO2 at high pressure by observing the spin-spin multiplet in the proton-resonance spectrum and irradiating either the deuteron transitions or some of the proton transitions. The spectra show features arising from spin relaxation in HD. These features are analyzed by using the density-matrix theory of double resonance, assuming "strong"- and "weak"-collision models for the system. The equation of motion of the spin density matrix is exactly of the same form for both collision models, the only distinction coming from the dependence of the correlation times on the transformation properties of the lattice operators and on the quantum numbers characterizing the lattice states. The results of the analysis of HD double-resonance spectra indicate that the collisions in this case are "strong." The cross products between lattice terms which transform identically but belong to two different relaxation mechanisms make significant contributions to some of the correlation functions involved and thereby affect the final results.

B. D. Nageswara Rao and L. R. Anders

1965-10-04T23:59:59.000Z

212

Reaching Grid Parity Using BP Solar Crystalline Silicon Technology: A Systems Class Application  

SciTech Connect (OSTI)

The primary target market for this program was the residential and commercial PV markets, drawing on BP Solar's premium product and service offerings, brand and marketing strength, and unique routes to market. These two markets were chosen because: (1) in 2005 they represented more than 50% of the overall US PV market; (2) they are the two markets that will likely meet grid parity first; and (3) they are the two market segments in which product development can lead to the added value necessary to generate market growth before reaching grid parity. Federal investment in this program resulted in substantial progress toward the DOE TPP target, providing significant advancements in the following areas: (1) Lower component costs particularly the modules and inverters. (2) Increased availability and lower cost of silicon feedstock. (3) Product specifically developed for residential and commercial applications. (4) Reducing the cost of installation through optimization of the products. (5) Increased value of electricity in mid-term to drive volume increases, via the green grid technology. (6) Large scale manufacture of PV products in the US, generating increased US employment in manufacturing and installation. To achieve these goals BP Solar assembled a team that included suppliers of critical materials, automated equipment developers/manufacturers, inverter and other BOS manufacturers, a utility company, and University research groups. The program addressed all aspects of the crystalline silicon PV business from raw materials (particularly silicon feedstock) through installation of the system on the customers site. By involving the material and equipment vendors, we ensured that supplies of silicon feedstock and other PV specific materials like encapsulation materials (EVA and cover glass) will be available in the quantities required to meet the DOE goals of 5 to 10 GW of installed US PV by 2015 and at the prices necessary for PV systems to reach grid parity in 2015. This final technical report highlights the accomplishments of the BP Solar technical team from 2006 to the end of the project in February 2010. All the main contributors and team members are recognized for this accomplishment and their endeavors are recorded in the twelve main tasks described here.

Cunningham, Daniel W; Wohlgemuth, John; Carlson, David E; Clark, Roger F; Gleaton, Mark; Posbic, John P; Zahler, James

2010-12-06T23:59:59.000Z

213

Computer code for double beta decay QRPA based calculations  

E-Print Network [OSTI]

. The Enriched Xenon Observatory for neutrinoless double beta decay (EXO) will search for the rare decays

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

214

Rethinking the Role of Information in Chemicals Policy: Implications for TSCA and REACH  

E-Print Network [OSTI]

This article analyses the role of different kinds of information for minimizing or eliminating the risks due to the production, use, and

Koch, Lars

2006-01-01T23:59:59.000Z

215

Physics reach of high-energy and high-statistics IceCube atmospheric neutrino data  

Science Journals Connector (OSTI)

This paper investigates the physics reach of the IceCube neutrino detector when it will have collected a data set of order one million atmospheric neutrinos with energies in the 0.1?104??TeV range. The paper consists of three parts. We first demonstrate how to simulate the detector performance using relatively simple analytic methods. Because of the high energies of the neutrinos, their oscillations, propagation in the Earth and regeneration due to ? decay must be treated in a coherent way. We set up the formalism to do this and discuss the implications. In a final section we apply the methods developed to evaluate the potential of IceCube to study new physics beyond neutrino oscillations. Not surprisingly, because of the increased energy and statistics over present experiments, existing bounds on violations of the equivalence principle and of Lorentz invariance can be improved by over 2 orders of magnitude. The methods developed can be readily applied to other nonconventional physics associated with neutrinos.

M. C. Gonzalez-Garcia; Francis Halzen; Michele Maltoni

2005-05-31T23:59:59.000Z

216

Lattice Boltzmann method for double-diffusive natural convection  

Science Journals Connector (OSTI)

A lattice Boltzmann method for double-diffusive natural convection is presented. The model combines a multicomponent lattice Boltzmann scheme with a finite-difference solution of the energy equation to simulate natural convection caused by gradients in temperature and concentration. The model is validated both in two and three dimensions, and the agreement with literature data is satisfactory. A case study of thermosolutal convection of air in a cubical enclosure with horizontal thermal and solutal gradients is presented, exhibiting a rich variety of flow structures.

F. Verhaeghe; B. Blanpain; P. Wollants

2007-04-12T23:59:59.000Z

217

Low-cost coherent receiver for long-reach optical access network using single-ended detection  

Science Journals Connector (OSTI)

A low-cost coherent receiver using two 2×3 optical hybrids and single-ended detection is proposed for long-reach optical access network. This structure can detect the two...

Zhang, Xuebing; Li, Zhaohui; Li, Jianping; Yu, Changyuan; Lau, Alan Pak Tao; Lu, Chao

2014-01-01T23:59:59.000Z

218

Precision Muon Reconstruction in Double Chooz  

E-Print Network [OSTI]

We describe a muon track reconstruction algorithm for the reactor anti-neutrino experiment Double Chooz. The Double Chooz detector consists of two optically isolated volumes of liquid scintillator viewed by PMTs, and an Outer Veto above these made of crossed scintillator strips. Muons are reconstructed by their Outer Veto hit positions along with timing information from the other two detector volumes. All muons are fit under the hypothesis that they are through-going and ultrarelativistic. If the energy depositions suggest that the muon may have stopped, the reconstruction fits also for this hypothesis and chooses between the two via the relative goodness-of-fit. In the ideal case of a through-going muon intersecting the center of the detector, the resolution is ~40 mm in each transverse dimension. High quality muon reconstruction is an important tool for reducing the impact of the cosmogenic isotope background in Double Chooz.

Abe, Y; Barriere, J C; Baussan, E; Bekman, I; Bergevin, M; Bezerra, T J C; Bezrukov, L; Blucher, E; Buck, C; Busenitz, J; Cabrera, A; Caden, E; Camilleri, L; Carr, R; Cerrada, M; Chang, P -J; Chauveau, E; Chimenti, P; Collin, A P; Conover, E; Conrad, J M; Crespo-Anadón, J I; Crum, K; Cucoanes, A; Damon, E; Dawson, J V; Dietrich, D; Djurcic, Z; Dracos, M; Elnimr, M; Etenko, A; Fallot, M; von Feilitzsch, F; Felde, J; Fernandes, S M; Fischer, V; Franco, D; Franke, M; Furuta, H; Gil-Botella, I; Giot, L; Göger-Neff, M; Gonzalez, L F G; Goodenough, L; Goodman, M C; Grant, C; Haag, N; Hara, T; Haser, J; Hofmann, M; Horton-Smith, G A; Hourlier, A; Ishitsuka, M; Jochum, J; Jollet, C; Kaether, F; Kalousis, L N; Kamyshkov, Y; Kaplan, D M; Kawasaki, T; Kemp, E; de Kerret, H; Kryn, D; Kuze, M; Lachenmaier, T; Lane, C E; Lasserre, T; Letourneau, A; Lhuillier, D; Lima, H P; Lindner, M; no, J M López-Casta; LoSecco, J M; Lubsandorzhiev, B; Lucht, S; Maeda, J; Mariani, C; Maricic, J; Martino, J; Matsubara, T; Mention, G; Meregaglia, A; Miletic, T; Milincic, R; Minotti, A; Nagasaka, Y; Nikitenko, Y; Novella, P; Obolensky, M; Oberauer, L; Onillon, A; Osborn, A; Palomares, C; Pepe, I M; Perasso, S; Pfahler, P; Porta, A; Pronost, G; Reichenbacher, J; Reinhold, B; Röhling, M; Roncin, R; Roth, S; Rybolt, B; Sakamoto, Y; Santorelli, R; Schilithz, A C; Schönert, S; Schoppmann, S; Shaevitz, M H; Sharankova, R; Shimojima, S; Sibille, V; Sinev, V; Skorokhvatov, M; Smith, E; Spitz, J; Stahl, A; Stancu, I; Stokes, L F F; Strait, M; Stüken, A; Suekane, F; Sukhotin, S; Sumiyoshi, T; Sun, Y; Svoboda, R; Terao, K; Tonazzo, A; Thi, H H Trinh; Valdiviesso, G; Vassilopoulos, N; Veyssiere, C; Vivier, M; Wagner, S; Watanabe, H; Wiebusch, C; Winslow, L; Wurm, M; Yang, G; Yermia, F; Zimmer, V

2014-01-01T23:59:59.000Z

219

On the neutrinoless double ?{sup +}/EC decays  

SciTech Connect (OSTI)

The neutrinoless double positron-emission/electron-capture (0??{sup +}/EC) decays are studied for the magnitudes of the involved nuclear matrix elements (NMEs). Decays to the ground state, 0{sub gs}{sup +}, and excited 0{sup +} states are discussed. The participant many-body wave functions are evaluated in the framework of the quasiparticle random-phase approximation (QRPA). Effective, G-matrix-derived nuclear forces are used in realistic single-particle model spaces. The channels ?{sup +}?{sup +}, ?{sup +}EC, and the resonant neutrinoless double electron capture (R0?ECEC) are discussed.

Suhonen, Jouni [Department of Physics, P.O. Box 35 (YFL), FI-40014 University of Jyväskylä (Finland)

2013-12-30T23:59:59.000Z

220

The Halloween shock of 2003 as it reached Voyager 2 at ?73 AU - Two separate acceleration zones and two different spectra for energetic protons  

Science Journals Connector (OSTI)

Motivated by the recent observation that two separate periods of enhanced intensities of solar wind ions at ?2 times the normal solar wind energy were observed at times of the shock arrival and at the magnetic field maximum at Voyager 2 at 73 AU arising from the 2003 Halloween event at the Earth we have re-examined the higher energy proton data from 0.06 to 20 MeV from the LECP and CRS instruments on V2 for this event. We find that there are two separate regions of particle acceleration in this outward propagating merged interaction region. The one near the shock has a much harder proton spectrum extending up to ?20 MeV but with a relative paucity of particles below ?1.0 MeV. The other near the time of maximum magnetic field fluctuations is dominated by protons at energies ?1 MeV or less with a sharp cutoff above 2 MeV. The two regions are separated spatially and the half width of the respective radial intensity distributions at each energy can be used to estimate a local diffusion coefficient. The composite spectrum from these two regions is a power law with a spectral index ?-1.4 below 1 MeV steepening to ?3.2 above ?2 MeV. This observation has important implications astrophysically beyond what is seen locally because most astrophysical observations of accelerated spectra cannot resolve the two components and therefore miss the clues that help identify the particle acceleration mechanisms.

W. R. Webber; D. S. Intriligator; R. B. Decker

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS  

SciTech Connect (OSTI)

M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratories (PNNL) to perform seismic analysis of the Hanford Site Double-Shell Tanks (DSTs) in support of a project entitled Double-Shell Tank (DST) Integrity Project - DST Thermal and Seismic Analyses. The original scope of the project was to complete an up-to-date comprehensive analysis of record of the DST System at Hanford in support of Tri-Party Agreement Milestone M-48-14. The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). Although Milestone M-48-14 has been met, Revision I is being issued to address external review comments with emphasis on changes in the modeling of anchor bolts connecting the concrete dome and the steel primary tank. The work statement provided to M&D (PNNL 2003) required that a nonlinear soil structure interaction (SSI) analysis be performed on the DSTs. The analysis is required to include the effects of sliding interfaces and fluid sloshing (fluid-structure interaction). SSI analysis has traditionally been treated by frequency domain computer codes such as SHAKE (Schnabel, et al. 1972) and SASSI (Lysmer et al. 1999a). Such frequency domain programs are limited to the analysis of linear systems. Because of the contact surfaces, the response of the DSTs to a seismic event is inherently nonlinear and consequently outside the range of applicability of the linear frequency domain programs. That is, the nonlinear response of the DSTs to seismic excitation requires the use of a time domain code. The capabilities and limitations of the commercial time domain codes ANSYS{reg_sign} and MSC Dytran{reg_sign} for performing seismic SSI analysis of the DSTs and the methodology required to perform the detailed seismic analysis of the DSTs has been addressed in Rinker et al (2006a). On the basis of the results reported in Rinker et al. (2006a), it is concluded that time-domain SSI analysis using ANSYS{reg_sign} is justified for predicting the global response of the DSTs. The most significant difference between the current revision (Revision 1) of this report and the original issue (Revision 0) is the treatment of the anchor bolts that tie the steel dome of the primary tank to the concrete tank dome.

MACKEY TC; RINKER MW; CARPENTER BG; HENDRIX C; ABATT FG

2009-01-15T23:59:59.000Z

222

HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT SEISMIC ANALYSIS OF HANFORD DOUBLE SHELL TANKS  

SciTech Connect (OSTI)

M&D Professional Services, Inc. (M&D) is under subcontract to Pacific Northwest National Laboratory (PNNL) to perform seismic analysis of the Hanford Site double-shell tanks (DSTs) in support of a project entitled ''Double-Shell Tank (DSV Integrity Project--DST Thermal and Seismic Analyses)''. The overall scope of the project is to complete an up-to-date comprehensive analysis of record of the DST system at Hanford in support of Tri-Party Agreement Milestone M-48-14, The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). The work statement provided to M&D (PNNL 2003) required that the seismic analysis of the DSTs assess the impacts of potentially non-conservative assumptions in previous analyses and account for the additional soil mass due to the as-found soil density increase, the effects of material degradation, additional thermal profiles applied to the full structure including the soil-structure response with the footings, the non-rigid (low frequency) response of the tank roof, the asymmetric seismic-induced soil loading, the structural discontinuity between the concrete tank wall and the support footing and the sloshing of the tank waste. The seismic analysis considers the interaction of the tank with the surrounding soil and the effects of the primary tank contents. The DSTs and the surrounding soil are modeled as a system of finite elements. The depth and width of the soil incorporated into the analysis model are sufficient to obtain appropriately accurate analytical results. The analyses required to support the work statement differ from previous analysis of the DSTs in that the soil-structure interaction (SSI) model includes several (nonlinear) contact surfaces in the tank structure, and the contained waste must be modeled explicitly in order to capture the fluid-structure interaction behavior between the primary tank and contained waste.

MACKEY, T.C.

2006-03-17T23:59:59.000Z

223

A Microscopic Double-Slit Experiment  

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

A Microscopic Double-Slit A Microscopic Double-Slit Experiment A Microscopic Double-Slit Experiment Print Wednesday, 29 February 2012 00:00 Two centuries ago, Thomas Young performed the classic demonstration of the wave nature of light. He placed a screen with two tiny slits in front of a single light source, effectively converting it into a two-centered source. On a second screen far away, he saw a pattern of light and dark diffraction fringes, a well-known hallmark of wave interference. Along with later studies using particles instead of light, the experiment played a crucial role in establishing the validity of wave-particle duality, a puzzling concept that has ultimately become central to the interpretation of complementarity in quantum mechnanics. In a new twist on this classic experiment, the double slit (with light waves) has been replaced by a diatomic molecule (with electron waves). At ALS Beamline 10.0.1, researchers have shown that diatomic molecules can serve as two-center emitters of electron waves and that traces of electron-wave interference can be directly observed in precise measurements of vibrationally resolved photoionization spectra.

224

Parameterized Algorithms for Double Hypergraph Dualization with  

E-Print Network [OSTI]

as Sperner families.) The support of a hypergraph is the set of all vertices covered by edges, the remaining sets in graphs are also known as vertex covers. We consider the following two operators on hypergraphsParameterized Algorithms for Double Hypergraph Dualization with Rank Limitation and Maximum Minimal

Damaschke, Peter

225

Double tracks test site characterization report  

SciTech Connect (OSTI)

This report presents the results of site characterization activities performed at the Double Tracks Test Site, located on Range 71 North, of the Nellis Air Force Range (NAFR) in southern Nevada. Site characterization activities included reviewing historical data from the Double Tracks experiment, previous site investigation efforts, and recent site characterization data. The most recent site characterization activities were conducted in support of an interim corrective action to remediate the Double Tracks Test Site to an acceptable risk to human health and the environment. Site characterization was performed using a phased approach. First, previously collected data and historical records sere compiled and reviewed. Generalized scopes of work were then prepared to fill known data gaps. Field activities were conducted and the collected data were then reviewed to determine whether data gaps were filled and whether other areas needed to be investigated. Additional field efforts were then conducted, as required, to adequately characterize the site. Characterization of the Double Tracks Test Site was conducted in accordance with the US Department of Energy`s (DOE) Streamlined Approach for Environmental Restoration (SAFER).

NONE

1996-05-01T23:59:59.000Z

226

Apparent Double SiO Maser Sources  

Science Journals Connector (OSTI)

......to 3 Jy with four 20-m antennas (Miyoshi 1998, a poster paper at JAS meeting). The double SiO sources found...Research (C) (No. 10640238) of the Ministry of Education, Science, Sports and Culture. One of authors (SD) received......

Shuji Deguchi; Takahiro Fujii; Hideyuki Izumiura; Shigeru Matsumoto; Yoshikazu Nakada; Peter R. Wood; Issei Yamamura

1999-06-01T23:59:59.000Z

227

Fatigue analysis for double hull VLCC  

SciTech Connect (OSTI)

This paper presents the procedure and the results of fatigue analysis forming a part of Dynamic Load Approach (DLA) applied for 280,000 DWT double hull VLCC, classed with DLA notation by American Bureau of Shipping. The spectral fatigue analysis is applied to the above vessel, and the fatigue strength is confirmed to be sufficient.

Kawachi, S.; Kushima, T.; Negayama, H.; Shigematsu, K. [Sumitomo Heavy Industries, Ltd., Yokosuka (Japan)

1994-12-31T23:59:59.000Z

228

Pion double charge exchange and hadron dynamics  

SciTech Connect (OSTI)

This paper will review theoretical results to show how pion double charge exchange is contributing to our understanding of hadron dynamics in nuclei. The exploitation of the nucleus as a filter is shown to be essential in facilitating the comparison between theory and experiment. 23 refs., 3 figs., 2 tabs.

Johnson, M.B.

1991-01-01T23:59:59.000Z

229

Neutrinoless Double $?$-Decay: Status and Future  

E-Print Network [OSTI]

A brief summary of the status of neutrino masses, mixing and oscillations is presented. Neutrinoless double $\\beta$-decay is considered. Predictions for the effective Majorana mass are reviewed. A possible test of the calculations of nuclear matrix elements of the $0\

S. M. Bilenky

2005-09-11T23:59:59.000Z

230

Neutrinoless Double Beta Decay and ??Mass Determination  

Science Journals Connector (OSTI)

The search for Neutrinoless Double Beta Decay could improve our knowledge on neutrino properties. After a brief discussion on the implications of the observation of this rare process I will introduce the experimental approaches and review the prospects of the search for this nuclear transition.

M. Pedretti

2005-01-01T23:59:59.000Z

231

Reach: A low cost-approach to reducing stack emissions and improving the performance of oil-fired boilers  

SciTech Connect (OSTI)

Improved oil combustion technology, based upon optimization of oil atomizer and flame stabilizer design, has been retrofit to oil-fired boilers to reduce NO{sub x} emissions, particulate matter emissions, and opacity, and to provide operational and performance benefits. This technology, referred to as REACH, can be retrofit to wall-fired and tangential-fired boilers at a cost of less than $0.75/kW, a fraction of the cost of installing new burners. The technology is compatible with conventional NO{sub x} controls such as overfire air, flue gas recirculation, and low-NO{sub x} burners, and can be combined with these techniques to further reduce NO{sub x} emissions. REACH has been applied to eighty boilers representing over 14,000 MW of generating capacity. This paper describes REACH technology, its applicability and cost, and the emissions and performance results achieved in full scale applications.

Giovanni, D.V.; McElroy, M.W.; Kerho, S.E. [Electric Power Technologies, Inc., Menlo Park, CA (United States)

1996-01-01T23:59:59.000Z

232

Transition Operators Entering Neutrinoles Double Electron Capture to Excited Nuclear States  

E-Print Network [OSTI]

We construct the effective transition operators relevant for neutrinoless double electron capture leading to final nuclear states different than $0^{+}$. From the structure of these operators we see that, if such a process is observed experimentally, it will be very helpful in singling out the very important light neutrino mass contribution from the other lepton violating mechanisms

J. D. Vergados

2011-08-02T23:59:59.000Z

233

Study on the Connection of DFIG to Grid Based on Double-vector PWM  

Science Journals Connector (OSTI)

With the increasing of wind penetration in power systems, many national grid codes demand complete models and simulation studies under different system conditions in order to ensure that the connection of a wind farm would not have a detrimental impact ... Keywords: doubly fed induction generator, power system modelling, double-vector-pwm control

Xueqin Zheng; Donghui Guo

2010-06-01T23:59:59.000Z

234

Single-Molecule Measurements of the Persistence Length of Double-Stranded RNA  

E-Print Network [OSTI]

Single-Molecule Measurements of the Persistence Length of Double-Stranded RNA J. A. Abels, FRNA using two different single-molecule techniques: magnetic tweezers and atomic force microscopy. We deduce. The introduction of these single-molecule techniques for dsRNA analysis opens the way for real-time, quantitative

Dekker, Nynke

235

Study of a double bubbler for material balance in liquids  

SciTech Connect (OSTI)

The objective of this project was to determine the potential of a double bubbler to measure density and fluid level of the molten salt contained in an electrorefiner. Such in-situ real-time measurements can provide key information for material balances in the pyroprocessing of the nuclear spent fuel. This theoretical study showed this technique has a lot of promise. Four different experiments were designed and performed. The first three experiments studied the influence of a variety of factors such as depth difference between the two tubes, gas flow rate, the radius of the tubes and determining the best operating conditions. The last experiment purpose was to determine the precision and accuracy of the apparatus during specific conditions. The elected operating conditions for the characterization of the system were a difference of depth of 25 cm and a flow rate of 55 ml/min in each tube. The measured densities were between 1,000 g/l and 1,400g/l and the level between 34cm and 40 cm. The depth difference between the tubes is critical, the larger, the better. The experiments showed that the flow rate should be the same in each tube. The concordances with theoretical predictions were very good. The density precision was very satisfying (spread<0.1%) and the accuracy was about 1%. For the level determination, the precision was also very satisfying (spread<0.1%), but the accuracy was about 3%. However, those two biases could be corrected with calibration curves. In addition to the aqueous systems studied in the present work, future work will focus on examining the behavior of the double bubbler instrumentation in molten salt systems. The two main challenges which were identified in this work are the effect of the temperature and the variation of the superficial tension.

Hugues Lambert

2013-09-01T23:59:59.000Z

236

Hanford Begins New Campaign to Remove Excess Water from Double...  

Energy Savers [EERE]

Hanford Begins New Campaign to Remove Excess Water from Double-Shell Tanks Hanford Begins New Campaign to Remove Excess Water from Double-Shell Tanks September 30, 2014 - 12:00pm...

237

Progress Towards Doubling the Beam Power at Fermilab's Accelerator Complex  

SciTech Connect (OSTI)

After a 14 month shutdown accelerator modifications and upgrades are in place to allow us doubling of the Main Injector beam power. We will discuss the past MI high power operation and the current progress towards doubling the power.

Kourbanis, ioanis

2014-06-01T23:59:59.000Z

238

Sensitivity of CUORE to Neutrinoless Double-Beta Decay  

E-Print Network [OSTI]

Sensitivity of CUORE to Neutrinoless Double-Beta Decay b c,:Results of the Search for Neutrinoless D o u b l e - B e t ah e i n a , Evidence for neutrinoless double beta decay, M o

Alessandria, F.

2013-01-01T23:59:59.000Z

239

Double photoionization of helium with synchrotron x-rays: Proceedings  

SciTech Connect (OSTI)

This report contains papers on the following topics: Overview and comparison of photoionization with charged particle impact; The ratio of double to single ionization of helium: the relationship of photon and bare charged particle impact ionization; Double photoionization of helium at high energies; Compton scattering of photons from electrons bound in light elements; Electron ionization and the Compton effect in double ionization of helium; Elimination of two atomic electrons by a single energy photon; Double photoionization of helium at intermediate energies; Double Photoionization: Gauge Dependence, Coulomb Explosion; Single and Double Ionization by high energy photon impact; The effect of Compton Scattering on the double to single ionization ratio in helium; and Double ionization of He by photoionization and Compton scattering. These papers have been cataloged separately for the database.

Not Available

1994-01-01T23:59:59.000Z

240

Experimental demonstration of tunable directional excitation of surface plasmon polaritons with a subwavelength metallic double slit  

SciTech Connect (OSTI)

We demonstrate experimentally the directional excitation of surface plasmon polaritons (SPPs) on a metal film by a subwavelength double slit under backside illumination, based on the interference of SPPs generated by the two slits. By varying the incident angle, the SPPs can be tunably directed into two opposite propagating directions with a predetermined splitting ratio. Under certain incident angle, unidirectional SPP excitation can be achieved. This compact directional SPP coupler is potentially useful for many on-chip applications. As an example, we show the integration of the double-slit couplers with SPP Bragg mirrors, which can effectively realize selective coupling of SPPs into different ports in an integrated plasmonic chip.

Li Xiaowei [Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084 (China); Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084 (China); Tan Qiaofeng; Jin Guofan [Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084 (China); Bai Benfeng [Department of Precision Instruments, State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084 (China); Tsinghua-Foxconn Nanotechnology Research Center, Tsinghua University, Beijing 100084 (China); Department of Physics and Mathematics, University of Eastern Finland, P.O. Box 111, FI-80101 Joensuu (Finland)

2011-06-20T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Tapping nuclear`s growth potential: Reaching into the next 50 years  

SciTech Connect (OSTI)

Restructuring of the electricity business heralds significant changes in nuclear operations. The organization of the entire electric industry will be different as the vertically integrated monopolies that formerly provided electricity are replaced by separate companies, specializing in specific functions. Among them will likely be generating companies and a limited number of highly proficient nuclear operating companies. Producing electricity as a commodity in a competitive market will call for price-driven performance. The safety focus of nuclear operations is the constant that will carry over into the competitive electricity business.

Shanks, C. [Entergy Nuclear, Inc., Jackson, MS (United States)

1997-12-01T23:59:59.000Z

242

/ Search for Neutrinoless Double Beta Decay with CUORE  

E-Print Network [OSTI]

neutrinoless double beta decay (??0?) in 130 Te and other rare processes. The observation of ??0? would

Elena Ferri

243

Geothermal: Sponsored by OSTI -- Structure of the Electric Double...  

Office of Scientific and Technical Information (OSTI)

Structure of the Electric Double Layer in Hydrothermal Systems. Molecular Simulation Approach and Interpretation of Experimental Results...

244

The Majorana Neutrinoless Double-Beta Decay Experiment  

E-Print Network [OSTI]

The Majorana Neutrinoless Double-Beta Decay Experiment Pre-conceptual Design Proposal November 22 Motivation for Neutrinoless Double-Beta Decay Experiments . . . . . . . . . 4 2.1.1 Community Guidance Neutrinoless Double-Beta Decay Results . . . . . . . . . . . . . . . . . . . . 12 2.5 Next

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

245

Double K-Vacancy Production by X-Ray Photoionization  

E-Print Network [OSTI]

Double K-Vacancy Production by X-Ray Photoionization S. H. Southworth£ , R. W. Dunford£ , E. P Photon Source. Double K-vacancy production in Ne was observed by recording the KK-KLL Auger. For Mo, double K-vacancy production was observed by recording the K fluorescence hypersatellite

246

Sensitivity of CUORE to Neutrinoless Double-Beta Decay  

E-Print Network [OSTI]

of CUORE to Neutrinoless Double-Beta Decay b c,:L d e f F .s t results on neutrinoless double beta decay of T e w i t hthe study of neutrinoless double beta decay, J . C r y s t .

Alessandria, F.

2013-01-01T23:59:59.000Z

247

As corn-based biofuels reach their practical limits, advanced algae-based biofuels are poised to supply  

E-Print Network [OSTI]

SEMTE abstract As corn-based biofuels reach their practical limits, advanced algae-based biofuels of Energy, General Electric, Algenol Biofuels, and Southern Company. Currently a post-doctoral fellow working for Algenol Biofuels, Dr. Lively is expanding his expertise in gas and liquid separations

Reisslein, Martin

248

Background-independent measurement of $?_{13}$ in Double Chooz  

E-Print Network [OSTI]

The oscillation results published by the Double Chooz collaboration in 2011 and 2012 rely on background models substantiated by reactor-on data. In this analysis, we present a background-model-independent measurement of the mixing angle $\\theta_{13}$ by including 7.53 days of reactor-off data. A global fit of the observed neutrino rates for different reactor power conditions is performed, yielding a measurement of both $\\theta_{13}$ and the total background rate. The results on the mixing angle are improved significantly by including the reactor-off data in the fit, as it provides a direct measurement of the total background rate. This reactor rate modulation analysis considers antineutrino candidates with neutron captures on both Gd and H, whose combination yields $\\sin^2(2\\theta_{13})=$ 0.102 $\\pm$ 0.028(stat.) $\\pm$ 0.033(syst.). The results presented in this study are fully consistent with the ones already published by Double Chooz, achieving a competitive precision. They provide, for the first time, a determination of $\\theta_{13}$ that does not depend on a background model.

Y. Abe; J. C. dos Anjos; J. C. Barriere; E. Baussan; I. Bekman; M. Bergevin; T. J. C. Bezerra; L. Bezrukov; E. Blucher; C. Buck; J. Busenitz; A. Cabrera; E. Caden; L. Camilleri; R. Carr; M. Cerrada; P. -J. Chang; E. Chauveau; P. Chimenti; A. P. Collin; E. Conover; J. M. Conrad; J. I. Crespo-Anadón; K. Crum; A. Cucoanes; E. Damon; J. V. Dawson; D. Dietrich; Z. Djurcic; M. Dracos; M. Elnimr; A. Etenko; M. Fallot; F. von Feilitzsch; J. Felde; S. M. Fernandes; V. Fischer; D. Franco; M. Franke; H. Furuta; I. Gil-Botella; L. Giot; M. Göger-Neff; L. F. G. Gonzalez; L. Goodenough; M. C. Goodman; C. Grant; N. Haag; T. Hara; J. Haser; M. Hofmann; G. A. Horton-Smith; A. Hourlier; M. Ishitsuka; J. Jochum; C. Jollet; F. Kaether; L. N. Kalousis; Y. Kamyshkov; D. M. Kaplan; T. Kawasaki; E. Kemp; H. de Kerret; T. Konno; D. Kryn; M. Kuze; T. Lachenmaier; C. E. Lane; T. Lasserre; A. Letourneau; D. Lhuillier; H. P. Lima Jr; M. Lindner; J. M. López-Castaño; J. M. LoSecco; B. K. Lubsandorzhiev; S. Lucht; J. Maeda; C. Mariani; J. Maricic; J. Martino; T. Matsubara; G. Mention; A. Meregaglia; T. Miletic; R. Milincic; A. Minotti; Y. Nagasaka; K. Nakajima; Y. Nikitenko; P. Novella; M. Obolensky; L. Oberauer; A. Onillon; A. Osborn; C. Palomares; I. M. Pepe; S. Perasso; P. Pfahler; A. Porta; G. Pronost; J. Reichenbacher; B. Reinhold; M. Röhling; R. Roncin; S. Roth; B. Rybolt; Y. Sakamoto; R. Santorelli; F. Sato; A. C. Schilithz; S. Schönert; S. Schoppmann; M. H. Shaevitz; R. Sharankova; S. Shimojima; V. Sibille; V. Sinev; M. Skorokhvatov; E. Smith; J. Spitz; A. Stahl; I. Stancu; L. F. F. Stokes; M. Strait; A. Stüken; F. Suekane; S. Sukhotin; T. Sumiyoshi; Y. Sun; R. Svoboda; K. Terao; A. Tonazzo; H. H. Trinh Thi; G. Valdiviesso; N. Vassilopoulos; C. Veyssiere; M. Vivier; S. Wagner; H. Watanabe; C. Wiebusch; L. Winslow; M. Wurm; G. Yang; F. Yermia; V. Zimmer

2014-04-25T23:59:59.000Z

249

The electric double layer has a life of its own  

E-Print Network [OSTI]

Using molecular dynamics simulations with recently developed importance sampling methods, we show that the differential capacitance of a model ionic liquid based double-layer capacitor exhibits an anomalous dependence on the applied electrical potential. Such behavior is qualitatively incompatible with standard mean-field theories of the electrical double layer, but is consistent with observations made in experiment. The anomalous response results from structural changes induced in the interfacial region of the ionic liquid as it develops a charge density to screen the charge induced on the electrode surface. These structural changes are strongly influenced by the out-of-plane layering of the electrolyte and are multifaceted, including an abrupt local ordering of the ions adsorbed in the plane of the electrode surface, reorientation of molecular ions, and the spontaneous exchange of ions between different layers of the electrolyte close to the electrode surface. The local ordering exhibits signatures of a first-order phase transition, which would indicate a singular charge-density transition in a macroscopic limit.

Céline Merlet; David T. Limmer; Mathieu Salanne; René Van Roij; Paul A Madden; David Chandler; Benjamin Rotenberg

2014-04-01T23:59:59.000Z

250

Background reduction and sensitivity for germanium double beta decay experiments  

E-Print Network [OSTI]

Germanium detectors have very good capabilities for the investigation of rare phenomena like the neutrinoless double beta decay. Rejection of the background entangling the expected signal is one primary goal in this kind of experiments. Here, the attainable background reduction in the energy region where the neutrinoless double beta decay signal of 76Ge is expected to appear has been evaluated for experiments using germanium detectors, taking into consideration different strategies like the granularity of the detector system, the segmentation of each individual germanium detector and the application of Pulse Shape Analysis techniques to discriminate signal from background events. Detection efficiency to the signal is affected by background rejection techniques, and therefore it has been estimated for each of the background rejection scenarios considered. Finally, conditions regarding crystal mass, radiopurity, exposure to cosmic rays, shielding and rejection capabilities are discussed with the aim to achieve a background level of 10-3 c keV-1 kg-1 y-1 in the region of interest, which would allow to explore neutrino effective masses around 40 meV.

H. Gómez; S. Cebrián; J. Morales; J. A. Villar

2007-08-29T23:59:59.000Z

251

Double-clad nuclear fuel safety rod  

DOE Patents [OSTI]

A device for shutting down a nuclear reactor during an undercooling or overpower event, whether or not the reactor's scram system operates properly. This is accomplished by double-clad fuel safety rods positioned at various locations throughout the reactor core, wherein melting of a secondary internal cladding of the rod allows the fuel column therein to shift from the reactor core to place the reactor in a subcritical condition.

McCarthy, William H. (Los Altos, CA); Atcheson, Donald B. (Cupertino, CA); Vaidyanathan, Swaminathan (San Jose, CA)

1984-01-01T23:59:59.000Z

252

A Microscopic Double-Slit Experiment  

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

A Microscopic Double-Slit Experiment Print A Microscopic Double-Slit Experiment Print Two centuries ago, Thomas Young performed the classic demonstration of the wave nature of light. He placed a screen with two tiny slits in front of a single light source, effectively converting it into a two-centered source. On a second screen far away, he saw a pattern of light and dark diffraction fringes, a well-known hallmark of wave interference. Along with later studies using particles instead of light, the experiment played a crucial role in establishing the validity of wave-particle duality, a puzzling concept that has ultimately become central to the interpretation of complementarity in quantum mechnanics. In a new twist on this classic experiment, the double slit (with light waves) has been replaced by a diatomic molecule (with electron waves). At ALS Beamline 10.0.1, researchers have shown that diatomic molecules can serve as two-center emitters of electron waves and that traces of electron-wave interference can be directly observed in precise measurements of vibrationally resolved photoionization spectra.

253

A Microscopic Double-Slit Experiment  

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

A Microscopic Double-Slit Experiment Print A Microscopic Double-Slit Experiment Print Two centuries ago, Thomas Young performed the classic demonstration of the wave nature of light. He placed a screen with two tiny slits in front of a single light source, effectively converting it into a two-centered source. On a second screen far away, he saw a pattern of light and dark diffraction fringes, a well-known hallmark of wave interference. Along with later studies using particles instead of light, the experiment played a crucial role in establishing the validity of wave-particle duality, a puzzling concept that has ultimately become central to the interpretation of complementarity in quantum mechnanics. In a new twist on this classic experiment, the double slit (with light waves) has been replaced by a diatomic molecule (with electron waves). At ALS Beamline 10.0.1, researchers have shown that diatomic molecules can serve as two-center emitters of electron waves and that traces of electron-wave interference can be directly observed in precise measurements of vibrationally resolved photoionization spectra.

254

Vibration of Generalized Double Well Oscillators  

E-Print Network [OSTI]

We have applied the Melnikov criterion to examine a global homoclinic bifurcation and transition to chaos in a case of a double well dynamical system with a nonlinear fractional damping term and external excitation. The usual double well Duffing potential having a negative square term and positive quartic term has been generalized to a double well potential with a negative square term and a positive one with an arbitrary real exponent $q > 2$. We have also used a fractional damping term with an arbitrary power $p$ applied to velocity which enables one to cover a wide range of realistic damping factors: from dry friction $p \\to 0$ to turbulent resistance phenomena $p=2$. Using perturbation methods we have found a critical forcing amplitude $\\mu_c$ above which the system may behave chaotically. Our results show that the vibrating system is less stable in transition to chaos for smaller $p$ satisfying an exponential scaling low. The critical amplitude $\\mu_c$ as an exponential function of $p$. The analytical results have been illustrated by numerical simulations using standard nonlinear tools such as Poincare maps and the maximal Lyapunov exponent. As usual for chosen system parameters we have identified a chaotic motion above the critical Melnikov amplitude $\\mu_c$.

Grzegorz Litak; Marek Borowiec; Arkadiusz Syta

2006-10-20T23:59:59.000Z

255

Auger spectrum of a water molecule after single and double core ionization  

SciTech Connect (OSTI)

The high intensity of free electron lasers opens up the possibility to perform single-shot molecule scattering experiments. However, even for small molecules, radiation damage induced by absorption of high intense x-ray radiation is not yet fully understood. One of the striking effects which occurs under intense x-ray illumination is the creation of double core ionized molecules in considerable quantity. To provide insight into this process, we have studied the dynamics of water molecules in single and double core ionized states by means of electronic transition rate calculations and ab initio molecular dynamics (MD) simulations. From the MD trajectories, photoionization and Auger transition rates were computed based on electronic continuum wavefunctions obtained by explicit integration of the coupled radial Schroedinger equations. These rates served to solve the master equations for the populations of the relevant electronic states. To account for the nuclear dynamics during the core hole lifetime, the calculated electron emission spectra for different molecular geometries were incoherently accumulated according to the obtained time-dependent populations, thus neglecting possible interference effects between different decay pathways. We find that, in contrast to the single core ionized water molecule, the nuclear dynamics for the double core ionized water molecule during the core hole lifetime leaves a clear fingerprint in the resulting electron emission spectra. The lifetime of the double core ionized water was found to be significantly shorter than half of the single core hole lifetime.

Inhester, L.; Burmeister, C. F.; Groenhof, G.; Grubmueller, H. [Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen (Germany)

2012-04-14T23:59:59.000Z

256

Nuclear matrix elements for neutrinoless double-beta decay and double-electron capture  

E-Print Network [OSTI]

A new generation of neutrinoless double beta decay experiments with improved sensitivity is currently under design and construction. They will probe inverted hierarchy region of the neutrino mass pattern. There is also a revived interest to the resonant neutrinoless double-electron capture, which has also a potential to probe lepton number conservation and to investigate the neutrino nature and mass scale. The primary concern are the nuclear matrix elements. Clearly, the accuracy of the determination of the effective Majorana neutrino mass from the measured 0\

Amand Faessler; Vadim Rodin; Fedor Simkovic

2012-06-03T23:59:59.000Z

257

Neutrinoless Double Beta Decay with Composite Neutrinos.  

E-Print Network [OSTI]

We study in detail the contribution of heavy composite Majorana neutrinos to neutrino-less double beta decay (0???). Our analysis confirms the result of a previous estimate by two of the authors. Excited neutrinos couple to the electroweak gauge bosons through a magnetic type effective Lagrangian. The relevant nuclear matrix element is related to matrix elements available in the literature and current bounds on the half-life of 0??? are converted into bounds on the compositeness scale and/or the heavy neutrino mass. Our bounds are of the same order of magnitude as those available from accelerator experiments.

O. Panella (a; C. Carimalo (b; Y. N. Srivastava (a; A. Widom (c

1997-01-01T23:59:59.000Z

258

Double acting stirling engine phase control  

DOE Patents [OSTI]

A mechanical device for effecting a phase change between the expansion and compression volumes of a double-acting Stirling engine uses helical elements which produce opposite rotation of a pair of crankpins when a control rod is moved, so the phase between two pairs of pistons is changed by +.psi. and the phase between the other two pairs of pistons is changed by -.psi.. The phase can change beyond .psi.=90.degree. at which regenerative braking and then reversal of engine rotation occurs.

Berchowitz, David M. (Scotia, NY)

1983-01-01T23:59:59.000Z

259

Neutrino Oscillations, Neutrinoless Double Beta Decay  

Science Journals Connector (OSTI)

We review the experimental evidence for neutrino mixing and neutrino mass. Searches for possible branches into heavy neutrinos do not reveal evidence for static mixing with branching ratios larger than 10?4 to 10?6. Similarly neutrino oscillation experiments show no evidence for dynamic mixing in various oscillation channels. Stringent limits for ? e disappearance from a recent reactor experiment are presented. Results from neutrinoless double beta decay provide sensitive test for Majorana mass and right?hand couplings the present limits being 3–10 eV and 10?5 respectively.

F. Boehm

1982-01-01T23:59:59.000Z

260

Neutrinoless double beta decay and neutrino masses  

Science Journals Connector (OSTI)

Neutrinoless double beta decay (0???) is a promising test for lepton number violating physics beyond the standard model (SM) of particle physics. There is a deep connection between this decay and the phenomenon of neutrino masses. In particular we will discuss the relation between 0??? and Majorana neutrino masses provided by the so-called Schechter-Valle theorem in a quantitative way. Furthermore we will present an experimental cross check to discriminate 0??? from unknown nuclear background using only one isotope i.e. within one experiment.

Michael Duerr

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Neutrinoless double ? decay with composite neutrinos  

Science Journals Connector (OSTI)

We study in detail the contribution of heavy composite Majorana neutrinos to neutrinoless double beta decay (0???). Our analysis confirms the result of a previous estimate by two of the authors. Excited neutrinos couple to the electroweak gauge bosons through a magnetic-type effective Lagrangian. The relevant nuclear matrix element is related to matrix elements available in the literature and current bounds on the half-life of 0??? are converted into bounds on the compositeness scale and/or the heavy neutrino mass. Our bounds are of the same order of magnitude as those available from accelerator experiments.

O. Panella; C. Carimalo; Y. N. Srivastava; A. Widom

1997-11-01T23:59:59.000Z

262

Status of the CUORE and results from the CUORE-0 neutrinoless double beta decay experiments  

E-Print Network [OSTI]

CUORE is a 741 kg array of TeO2 bolometers for the search of neutrinoless double beta decay of 130Te. The detector is being constructed at the Laboratori Nazionali del Gran Sasso, Italy, where it will start taking data in 2015. If the target background of 0.01 counts/keV/kg/y will be reached, in five years of data taking CUORE will have a 1 sigma half life sensitivity of 10E26 y. CUORE-0 is a smaller experiment constructed to test and demonstrate the performances expected for CUORE. The detector is a single tower of 52 CUORE-like bolometers that started taking data in spring 2013. The status and perspectives of CUORE will be discussed, and the first CUORE-0 data will be presented.

Sisti, M; Avignone, F T; Azzolini, O; Balata, M; Banks, T I; Bari, G; Beeman, J; Bellini, F; Bersani, A; Biassoni, M; Brofferio, C; Bucci, C; Cai, X Z; Camacho, A; Caminata, A; Canonica, L; Cao, X G; Capelli, S; Cappelli, L; Carbone, L; Cardani, L; Casali, N; Cassina, L; Chiesa, D; Chott, N; Clemenza, M; Copello, S; Cosmelli, C; Cremonesi, O; Creswick, R J; Cushman, J S; Dafinei, I; Dally, A; Datskov, V; Dell'Oro, S; Deninno, M; Di Domizio, S; di Vacri, M L; Drobizhev, A; Ejzak, L; Fang, D Q; Farach, H A; Faverzani, M; Fernandes, G; Ferri, E; Ferroni, F; Fiorini, E; Franceschi, M A; Freedman, S J; Fujikawa, B K; Giachero, A; Gironi, L; Giuliani, A; Gorla, P; Gotti, C; Gutierrez, T D; Haller, E E; Han, K; Heeger, K M; Hennings-Yeomans, R; Hickerson, K P; Huang, H Z; Kadel, R; Keppel, G; Kolomensky, Yu G; Li, Y L; Ligi, C; Lim, K E; Liu, X; Ma, Y G; Maiano, C; Maino, M; Martinez, M; Maruyama, R H; Mei, Y; Moggi, N; Morganti, S; Napolitano, T; Nastasi, M; Nisi, S; Nones, C; Norman, E B; Nucciotti, A; O'Donnell, T; Orio, F; Orlandi, D; Ouellet, J L; Pagliarone, C E; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pettinacci, V; Piperno, G; Pira, C; Pirro, S; Pozzi, S; Previtali, E; Rosenfeld, C; Rusconi, C; Sala, E; Sangiorgio, S; Scielzo, N D; Smith, A R; Taffarello, L; Tenconi, M; Terranova, F; Tian, W D; Tomei, C; Trentalange, S; Ventura, G; Vignati, M; Wang, B S; Wang, H W; Wielgus, L; Wilson, J; Winslow, L A; Wise, T; Woodcraft, A; Zanotti, L; Zarra, C; Zhang, G Q; Zhu, B X; Zucchelli, S

2015-01-01T23:59:59.000Z

263

New generation of double beta decay experiments: are there any limitations?  

E-Print Network [OSTI]

New generation experiments on search for neutrinoless double beta decay with sensitivity to effective Majorana neutrino mass on the level $\\sim$ 3-5 meV is discussed. Possible restrictions at achievement of this purpose (possibility to produce big amount of enriched isotopes, possibility to reach very low background level, energy resolution and possible cost of experiments) are considered. It is shown that for realization of so ambitious project 10 tons (or more) of enriched isotope is required. Background index should be on the level $\\le$ 10$^{-5}-10^{-6}$ c/kg$\\cdot$ keV$\\cdot$ y. Besides, the energy resolution of the detector should be not worse than 1-2%. It is shown that $^{130}$TeO$_2$ low temperature bolometer looks as the most realistic candidate for such experiments. Under some conditions experiments with $^{76}$Ge, $^{100}$Mo and $^{136}$Xe can be realized too.

A. S. Barabash

2011-09-29T23:59:59.000Z

264

A Segmented, Enriched N-type Germanium Detector for Neutrinoless Double Beta-Decay Experiments  

SciTech Connect (OSTI)

We present data characterizing the performance of the _rst segmented, N- type Ge detector, isotopically enriched to 85% 76Ge. This detector, based on the Ortec PT6x2 design and referred to as SEGA (Segmented, Enriched Germanium Assembly), was developed as a possible prototype for neutrinoless double beta-decay measurements by the Majorana collaboration. We present some of the general characteristics (including bias potential, efficiency, leakage current, and integral cross-talk) for this detector in its temporary cryostat. We also present an analysis of the resolution of the detector, and demonstrate that for all but two segments there is at least one channel that reaches the Majorana resolution goal below 4 keV FWHM at 2039 keV, and all channels are below 4.5 keV FWHM.

Leviner, L.; Aalseth, Craig E.; Ahmed, M. W.; Avignone, F. T.; Back, Henning O.; Barabash, Alexander S.; Boswell, M.; De Braeckeleer, L.; Brudanin, V.; Chan, Yuen-Dat; Egorov, Viatcheslav; Elliott, Steven R.; Gehman, Victor M.; Hossbach, Todd W.; Kephart, Jeremy; Kidd, M. F.; Konovalov, S.; Lesko, Kevin; Li, Jingyi; Mei, Dongming; Mikhailov, S.; Miley, Harry S.; Radford, D. C.; Reeves, James H.; Sandukovsky, Viatcheslav; Umatov, Valdimir; Underwood, T. A.; Tornow, W.; Wu, Y. K.; Young, A.

2014-01-21T23:59:59.000Z

265

Double pion photoproduction off 40Ca  

E-Print Network [OSTI]

The photoproduction of pi0pi0 and pi0pi+/- pairs off 40Ca has been investigated with the TAPS detector using the Glasgow photon tagging spectrometer at the Mainz MAMI accelerator. Data have been taken for incident photon energies in the energy range from 200 - 820 MeV. Total cross sections have been extracted from threshold up to the maximum photon energy and invariant mass distributions of the pion pairs have been obtained for incident photon energies between 400 - 500 MeV and 500 - 550 MeV. The double pi0 invariant mass distributions show some relative enhancement with respect to the mixed charge channel at small invariant masses. The effects are smaller than previously observed for lead nuclei and the distributions do not significantly deviate from carbon data. The data are in good agreement with the results of recent calculations in the framework of the BUU model, with careful treatment of final state interaction effects but without an explicit in-medium modification of scalar, iso-scalar pion pairs. This means that for Ca most of the experimentally observed effect can be explained by final state interactions. Only at low incident photon energies there is still a small low mass enhancement of the double pi0 data over the BUU results.

F. Bloch; J. Ahrens; J. R. M. Annand; R. Beck; L. S. Fog; D. Hornidge; S. Janssen; M. Kotulla; B. Krusche; J. C. McGeorge; I. J. D. MacGregor; J. G. Messchendorp; V. Metag; R. Novotny; R. O. Owens; M. Pfeiffer; M. Rost; R. Sanderson; S. Schadmand; A. Thomas; D. P. Watts

2007-03-24T23:59:59.000Z

266

Search For Neutrinoless Double Beta Decay  

E-Print Network [OSTI]

The HEIDELBERG-MOSCOW experiment, which is the most sensitive double beta decay experiment since ten years has been regularly continued until end of November 2003. An analysis of the data has been performed already until May 20, 2003. The experiment yields now, on a 4? level, evidence for lepton number violation and proves that the neutrino is a Majorana particle. It further shows that neutrino masses are degenerate. In addition it puts several stringent constraints on other physics beyond the Standard Model. Among others it opens the door to test various supersymmetric theory scenarios, for example it gives the sharpest in the R-parity violating part of the superpotential, and limit on the parameter ? ? 111 gives information on the splitting of the sneutrino-antisneutrino system. The result from the HEIDELBERG-MOSCOW experiment is consistent with recent results from CMB investigations, with high energy cosmic rays, with the result from the g-2 experiment and with recent theoretical work. It is indirectly supported by the analysis of other Ge double beta experiments. Recent criticism of various kind has been shown to be wrong, among others by measurements performed in 2003 with a 214Bi source ( 226Ra), by simulation of the background in the range of Q?? by GEANT4, and by deeper investigation of statistical features such as sensitivity of peak search, and relevance of width of window of analysis. 1

H. V. Klapdor-kleingrothaus *a; I. V. Krivosheina A; A. Dietz A

2004-01-01T23:59:59.000Z

267

Particle acceleration in double radio sources  

Science Journals Connector (OSTI)

Further study has been made of a model of extragalactic double radio sources in which the magnetized accretion disc of a massive black hole acts as an electric dynamo producing oppositely directed beams of relativistic particles. An empty region of small angular size—a vortice core—is shown to be a possible consequence of the hydrodynamics of accretion of gas with angular momentum. An ambient magnetic field in the gas tends to accumulate in the core region. The acceleration of electrons in the dynamo electric field gives rise to oppositely directed electron beams which in turn produce synchroton gamma rays collimated along the core. Collisions between the gamma rays and low energy photons caN initiate an electromagnetic cascade shower. The cascade acts to produce a collimated relativistic electron?positron beam. If the current flow in the dynamo occurs in surges then the outward propagation of the head of the electron–positron beams may produce expanding compact radio components. The electron–positron beam is ballistic in nature and it is electrically neutral and carries no current. Such a beam appears to have favorable stability properties. The beam is eventually stopped and spread out in pitch angle by the ram pressure of the external medium. Synchrotron radiated lobes of double radio sources.

R. V. E. Lovelace; J. MacAuslan; M. Burns

1979-01-01T23:59:59.000Z

268

Double Retort System for Materials Compatibility Testing  

SciTech Connect (OSTI)

With Naval Reactors (NR) approval of the Naval Reactors Prime Contractor Team (NRPCT) recommendation to develop a gas cooled reactor directly coupled to a Brayton power conversion system as the Space Nuclear Power Plant (SNPP) for Project Prometheus (References a and b) there was a need to investigate compatibility between the various materials to be used throughout the SNPP. Of particular interest was the transport of interstitial impurities from the nickel-base superalloys, which were leading candidates for most of the piping and turbine components to the refractory metal alloys planned for use in the reactor core. This kind of contamination has the potential to affect the lifetime of the core materials. This letter provides technical information regarding the assembly and operation of a double retort materials compatibility testing system and initial experimental results. The use of a double retort system to test materials compatibility through the transfer of impurities from a source to a sink material is described here. The system has independent temperature control for both materials and is far less complex than closed loops. The system is described in detail and the results of three experiments are presented.

V. Munne; EV Carelli

2006-02-23T23:59:59.000Z

269

Phenomenology Of Sterile Neutrinos At Different Mass Scales: Neutrinoless Double Beta Decay And Neutrino Oscillations.  

E-Print Network [OSTI]

??The existence of neutrino oscillation is the first evidence of physics beyond the Standard Model. It proves that neutrinos are massive and motivates the study… (more)

WONG, CHAN,FAI

2012-01-01T23:59:59.000Z

270

Thermal Performance of a Double-Tube Type Lng Vaporizer  

Science Journals Connector (OSTI)

This report concerns the confirmed test results and method of analysis of the thermal performance of a double-tube type LNG vaporizer (DTV). The DTV is a...

Y. Miyata; T. Miura; S. Kasahara; H. Shohtani…

1994-01-01T23:59:59.000Z

271

Majorana Neutrino Masses from Neutrinoless Double Beta Decay and Cosmology  

E-Print Network [OSTI]

When three Majorana neutrinos describe the solar and atmospheric neutrino data via oscillations, a nonzero measurement of neutrinoless double beta ($0\

V. Barger; K. Whisnant

1999-04-08T23:59:59.000Z

272

Electromagnetically Induced Transparency in a Double Well Atomic Josephson Junction  

E-Print Network [OSTI]

observation of these Josephson junction resonances. 2.dressed Bose condensed Josephson junction Let us consider ain a Double Well Atomic Josephson Junction J.O. Weatherall

Weatherall, J. O.; Search, C. P.

2009-01-01T23:59:59.000Z

273

Neutrinoless double beta decay can constrain neutrino dark matter  

E-Print Network [OSTI]

We examine how constraints can be placed on the neutrino component of dark matter by an accurate measurement of neutrinoless double beta ($0\

V. Barger; S. L. Glashow; D. Marfatia; K. Whisnant

2002-02-26T23:59:59.000Z

274

The complex Doppler effect in double negative media  

Science Journals Connector (OSTI)

The Doppler effect in doubly double negative acoustic media is ... ’s functions. It is shown that several Doppler modes can be generated by a monochromatic...

I. V. Lisenkov; S. A. Nikitov

2011-06-01T23:59:59.000Z

275

A Search for Neutrinoless Double Beta Decay of Te-130.  

E-Print Network [OSTI]

??This dissertation describes an experimental search for neutrinoless double beta (0???) decay of 130Te. An observation of 0??? decay would establish that neutrinos are Majorana… (more)

Bryant, Adam Douglas

2010-01-01T23:59:59.000Z

276

High-field double-pancake superconducting coils and a method of winding  

DOE Patents [OSTI]

A double-pancake coil having first and second pancakes may comprise a plurality of conductor means, each conductor means having a different grade and having one or more conductors, wherein each pancake of said double-pancake coil is comprised of inner and outer turns; wherein said inner turns are comprised of at least one of said conductor means wound about an axis and nested within one another; wherein said outer turns are comprised of said inner conductor means and at least one other conductor means co-wound about said inner turns and nested within one another; wherein each of said conductor means is wound along said axis from said first pancake to said second pancake at a different turn.

Materna, Peter A. (Lawrenceville, NJ)

1985-01-01T23:59:59.000Z

277

Sound transmission loss of double?glazed window panes—an empirical approach  

Science Journals Connector (OSTI)

There are only a few contributions to the theory of sound transmission loss (STL) of double?glazed window panes e.g. by M. Rehfeld et al. (1996). The situation is nearly the same with the empirical approach of reducing data from laboratory measurements to a simple formula as done by K. Goesele (1977). Goesele inferred a result in terms of the single?number rating according to ISO 717 based on many laboratory STL measurements as described in DIN 52210 and ISO 140. In particular measurements of air?filled double?glazed window panes had been used. Meanwhile the gas fillings changed because the thermal insulation of the window panes had to be increased. In the last five years a large number of STL measurements of double?glazed window panes with different dimensions (pane thicknesses gap between the panes) and gas fillings have been carried out at the Fraunhofer?Institut fuer Bauphysik. From these measurements some typical behaviors of STL versus frequency belonging to specific pane configurations could be derived. This should allow an approximate prediction of the STL for given physical dimensions of double?glazed window panes.

Siegfried Koch

1999-01-01T23:59:59.000Z

278

2005 Double white lines on bills of Razorbill 103 DOUBLE WHITE LINES ON THE BILL OF THE  

E-Print Network [OSTI]

2005 Double white lines on bills of Razorbill 103 DOUBLE WHITE LINES ON THE BILL OF THE RAZORBILL.L., MUZAFFAR S.B. & JONES I.L. Lavers J.L., Muzaffar S.B. & Jones I.L. 2006. Double white lines on the bill Seabirds 7(3): 103-108. One of the diagnostic features of the Razorbill Alca torda is the distinct white

Jones, Ian L.

279

A hybrid double-dot in silicon  

SciTech Connect (OSTI)

We report electrical measurements of a single arsenic dopant atom in the tunnel barrier of a silicon single-electron transistor (SET). In addition to performing the electrical characterisation of the individual dopants, we study the series electrical transport through the dopant and SET. We measure the bias triangles of this hybrid double-dot and show that we can tune the electrostatic coupling between the two sub-systems. Additionally, we measured SET in which an additional plunger gate allows the reduction of the electron number in the SET down to the few-electron regime where the dot presents well-defined spin configurations. Finally, we discuss the challenges of operating a dopant-dot hybrid system in the few-electron regime.

Gonzalez-Zalba, M. F.; Heiss, D.; Ferguson, A. J. [Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge (United Kingdom)

2013-12-04T23:59:59.000Z

280

Efficient jitter compensation using double exponential smoothing  

Science Journals Connector (OSTI)

This paper proposes a new jitter reduction scheme based on double exponential smoothing (DES). We compare this DES-based method to jitter reduction methods based on the Kalman filter (KF) and extended Kalman filter (EKF), two well-known methods of jitter reduction. To evaluate the jitter reduction performance, we used a laser pointer interaction system with a known problem with jittery laser spot movements caused by natural hand tremors. We show that the DES-based scheme runs approximately 100 times faster than the EKF-based method and 19 times faster than the KF-based method. Furthermore, in terms of jitter reduction, the proposed DES-based method yields approximately 18% better results than the EKF-based method and 20% better results than the KF-based method.

Min Gyo Chung; Sang-Kyun Kim

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Range Separated Brueckner Coupled Cluster Doubles Theory  

E-Print Network [OSTI]

We introduce a range-separation approximation to coupled cluster doubles (CCD) theory that successfully overcomes limitations of regular CCD when applied to the uniform electron gas. We combine the short-range ladder channel with the long-range ring channel in the presence of a Bruckner renormalized one-body interaction and obtain ground-state energies with an accuracy of 0.001 a.u./electron across a wide range of density regimes. Our scheme is particularly useful in the low-density and strongly-correlated regimes, where regular CCD has serious drawbacks. Moreover, we cure the infamous overcorrelation of approaches based on ring diagrams (i.e. the particle-hole random phase approximation). Our energies are further shown to have appropriate basis set and thermodynamic limit convergence, and overall this scheme promises energetic properties for realistic periodic and extended systems which existing methods do not possess.

Shepherd, James J; Scuseria, Gustavo E

2013-01-01T23:59:59.000Z

282

Experimental searches of neutrinoless double beta decay  

E-Print Network [OSTI]

Neutrinoless double decay is a unique probe for lepton number conservation and neutrino properties. It allows to investigate the Dirac/Majorana nature of the neutrinos and their absolute mass scale (hierarchy problem) with unprecedented sensitivity. A number of experiments are presently under preparation to cover the quasi-degenerate region of the neutrino mass spectrum. Improved sensitivities are however required to sound the so-called inverted hierarchy region. This is a real challenge faced by a number of new proposed projects, based either on large expansions of the present experiments or on new ideas top improve the technical performance or reduce the background contributions. A review of the most relevant ongoing experiments is given. The most relevant parameters contributing to the experimental sensitivity are discussed and a critical comparison of the future projects is proposed.

Oliviero Cremonesi

2012-12-19T23:59:59.000Z

283

Double Shell Tank (DST) Utilities Specification  

SciTech Connect (OSTI)

This specification establishes the performance requirements and provides the references to the requisite codes and standards to he applied during the design of the Double-Shell Tank (DST) Utilities Subsystems that support the first phase of waste feed delivery (WFD). The DST Utilities Subsystems provide electrical power, raw/potable water, and service/instrument air to the equipment and structures used to transfer low-activity waste (LAW) and high-level waste (HLW) to designated DST staging tanks. The DST Utilities Subsystems also support the equipment and structures used to deliver blended LAW and HLW feed from these staging tanks to the River Protection Project (RPP) Privatization Contractor facility where the waste will be immobilized. This specification is intended to be the basis for new projects/installations. This specification is not intended to retroactively affect previously established project design criteria without specific direction by the program.

SUSIENE, W.T.

2000-04-27T23:59:59.000Z

284

Deep subwavelength plasmonic waveguide switch in double graphene layer structure  

E-Print Network [OSTI]

Deep subwavelength plasmonic waveguide switch in double graphene layer structure Hideo Iizuka in double graphene layer structure Hideo Iizuka1,a) and Shanhui Fan2,b) 1 Toyota Central Research December 2013) Graphene provides excellent prospects of the dynamic tunability, low propagation loss

Fan, Shanhui

285

Double quantum dot as a minimal thermoelectric generator  

Science Journals Connector (OSTI)

Based on numerical renormalization group calculations, we demonstrate that experimentally realized double quantum dots constitute a minimal thermoelectric generator. In the Kondo regime, one quantum dot acts as an n-type and the other one as a p-type thermoelectric device. Properly connected, a capacitively coupled double quantum dot provides a miniature power supply utilizing the thermal energy of the environment.

S. Donsa; S. Andergassen; K. Held

2014-03-05T23:59:59.000Z

286

Strategies for Next Generation Neutrinoless Double-Beta Decay Experiments  

E-Print Network [OSTI]

Strategies for Next Generation Neutrinoless Double-Beta Decay Experiments F. T. Avignone III A brief discussion of the connection between neutrino oscillation data and predictions of neutrinoless the necessary tools for comparative evaluation. 1. INTRODUCTION Neutrinoless double-beta (0)-decay has been

287

Neutrinoless double-beta decay. A brief review  

E-Print Network [OSTI]

In this brief review we discuss the generation of Majorana neutrino masses through the see-saw mechanism, the theory of neutrinoless double-beta decay, the implications of neutrino oscillation data for the effective Majorana mass, taking into account the recent Daya Bay measurement of theta_13, and the interpretation of the results of neutrinoless double-beta decay experiments.

S. M. Bilenky; C. Giunti

2012-03-23T23:59:59.000Z

288

The fraction of double degenerates among DA white dwarfs  

E-Print Network [OSTI]

We present the results of a radial velocity survey designed to measure the fraction of double degenerates among DA white dwarfs. The narrow core of the H-alpha line was observed twice or more for 46 white dwarfs yielding radial velocities accurate to a few km/s. This makes our survey the most sensitive to the detection of double degenerates undertaken to date. We found no new double degenerates in our sample, though H-alpha emission from distant companions is seen in two systems. Two stars known to be double degenerates prior to our observations are included in the analysis. We find a 95% probability that the fraction of double degenerates among DA white dwarfs lies in the range [0.017,0.19].

P. F. L. Maxted; T. R. Marsh

1999-01-20T23:59:59.000Z

289

Single- and double-charge exchange at low pion energies  

SciTech Connect (OSTI)

A review is given of pion single- and double-charge exchange reactions at incident energies of 25 to 65 MeV leading to isobaric analog states, and in the case of double-charge exchange leading to the ground state of the residual nucleus. The crucial role of the higher nuclear transparency at low pion energies for the analysis of the data in terms of single and double scattering is demonstrated. The large effects on double-charge exchange produced by the spatial correlations in nuclear wave functions are evident. The data on 1f{sub 7/2} nuclei at 35 MeV are used to establish the general validity of a shell-model-based two-amplitude model for these transitions. Recent measurements of the energy dependence between 25 and 65 MeV of double-charge exchange cross sections at forward angles are presented and discussed. 33 refs., 19 figs.

Baer, H.W.

1991-01-01T23:59:59.000Z

290

Enhancement of x-ray line emission from plasmas produced by short high-intensity laser double pulses  

E-Print Network [OSTI]

Enhancement of x-ray line emission from plasmas produced by short high-intensity laser double laser-produced plasmas are bright ultrafast line x-ray sources potentially suitable for different onto a solid target into the x-ray emission is significantly enhanced when a laser prepulse precedes

Limpouch, Jiri

291

Vibration intensity difference thresholds.  

E-Print Network [OSTI]

??The intensity difference threshold is defined as ‘the difference in the intensity of two stimuli which is just sufficient for their difference to be detected’.… (more)

Forta, Nazim Gizem

2009-01-01T23:59:59.000Z

292

Neutrinoless double-beta decay with three or four neutrino mixing  

E-Print Network [OSTI]

Considering the scheme with mixing of three neutrinos and a mass hierarchy that can accommodate the results of solar and atmospheric neutrino experiments, it is shown that the results of solar neutrino experiments imply a lower bound for the effective Majorana mass in neutrinoless double-beta decay, under the natural assumptions that massive neutrinos are Majorana particles and there are no unlikely fine-tuned cancellations among the contributions of the different neutrino masses. Considering the four-neutrino schemes that can accommodate also the results of the LSND experiment, it is shown that only one of them is compatible with the results of neutrinoless double-beta decay experiments and with the measurement of the abundances of primordial elements produced in Big-Bang Nucleosynthesis. It is shown that in this scheme, under the assumptions that massive neutrinos are Majorana particles and there are no cancellations among the contributions of the different neutrino masses, the results of the LSND experiment imply a lower bound for the effective Majorana mass in neutrinoless double-beta decay.

C. Giunti

1999-06-07T23:59:59.000Z

293

Peierls instabilities in quasi-one-dimensional quantum double-well chains  

Science Journals Connector (OSTI)

Peierls-type instabilities in quarter-filled (n?=1/2) and half-filled (n?=1) quantum double-well hydrogen-bonded chain are investigated analytically in the framework of two-stage orientational-tunnelling model with additional inclusion of the interactions of protons with two different optical phonon branches. It is shown that when the energy of proton-phonon coupling becomes large, the system undergoes a transition to various types of insulator states. The influence of two different transport amplitudes on ground-state properties is studied. The results are compared with the pressure effect experimental investigations in superprotonic systems and hydrogen halides at low temperatures.

Natalie I. Pavlenko

2000-02-15T23:59:59.000Z

294

First results on neutrinoless double beta decay of Te-130 with the calorimetric cuoricino experiment  

E-Print Network [OSTI]

Evidence for Neutrinoless Double Beta Decay” arXiv:hep-on “Evidence for neutrinoless double beta decay”- arXiv:hep-Results on Neutrinoless Double Beta Decay of 130 Te with the

2003-01-01T23:59:59.000Z

295

Spin transport and spin polarization properties in double-stranded DNA  

SciTech Connect (OSTI)

We study the spin-dependent electron transport through a double-stranded DNA (dsDNA) using the Bogoliubov-de Gennes equations and non-equilibrium Green's function method. We calculate the spin-dependent electron conductance and spin-polarization for different lengths, helix angles, twist angles of dsDNA, the environment-induced dephasing factors, and hopping integral. It is shown that the conductance decreases by increasing the length and dephasing factor. Also, we show that the spin-polarization depends on the helical symmetry and the length of DNA. It is shown that the double-stranded DNA can act as a perfect spin filter. Finally, we show that the sign of spin polarization can be inverted from +1 (?1) to ?1 (+1) for some values of hopping integral.

Simchi, Hamidreza, E-mail: simchi@iust.ac.ir [Department of Physics, Iran University of Science and Technology, Narrmak, Tehran 16844 (Iran, Islamic Republic of); Semiconductor Technology Center, Tehran (Iran, Islamic Republic of); Esmaeilzadeh, Mahdi, E-mail: mahdi@iust.ac.ir; Mazidabadi, Hossein [Department of Physics, Iran University of Science and Technology, Narrmak, Tehran 16844 (Iran, Islamic Republic of)

2013-11-21T23:59:59.000Z

296

Accurate shell-model nuclear matrix elements for neutrinoless double-beta decay  

E-Print Network [OSTI]

We investigate a novel method of accurate calculation of the neutrinoless double-$\\beta$ decay shell-model nuclear matrix elements for the experimentally relevant case of $^{76}$Ge. We demonstrate that with the new method the nuclear matrix elements have perfect convergence properties and, using only the first 100 intermediate states of each spin, the matrix elements can be calculated with better than 1% accuracy. Based on the analysis of neutrinoless double-beta decays of $^{48}$Ca, $^{82}$Se, and $^{76}$Ge isotopes, we propose a new method to estimate the optimal values of the average closure energies at which the closure approximation gives the most accurate nuclear matrix elements. We also analyze the nuclear matrix elements for the heavy-neutrino-exchange mechanism, and we show that our method can be used to quench contributions from different intermediate spin states.

R. A. Sen'kov; M. Horoi

2014-11-06T23:59:59.000Z

297

The influence of pairing on the nuclear matrix elements of the neutrinoless double beta decays  

E-Print Network [OSTI]

We study in this letter the behavior of the neutrinoless double beta decay nuclear matrix elements (NME's) in the framework of the Interacting Shell Model. We analize them in terms of the total angular momentum of the decaying neutron pair and as a function of the seniority truncations in the nuclear wave functions. This point of view turns out to be very adequate to gauge the accuracy of the NME's predicted by different nuclear structure models. In addition, it gives back the due protagonism in this process to the pairing interaction, the interaction which is responsible for the very existence of double beta decay emitters. We show that low seniority approximations, comparable to those implicit in the quasiparticle RPA in an spherical basis, tend to overestimate the values of the NME's in several decays.

E. Caurier; J. Menendez; F. Nowacki; A. Poves

2007-09-13T23:59:59.000Z

298

Nonperturbative renormalization of the neutrinoless double-beta operator in p-shell nuclei  

E-Print Network [OSTI]

We use Lee-Suzuki mappings and related techniques to construct effective two-body p-shell interactions and neutrinoless double-beta operators that exactly reproduce the results of large no-core-shell-model calculations of double-beta decay in nuclei with mass number A=6. We then apply the effective operators to the decay of nuclei with A=7, 8, and 10, again comparing with no-core calculations in much larger spaces. The results with the effective two-body operators are generally good. In some cases, however, they differ non-negligibly from the full no-core results, suggesting that three-body corrections to the decay operator in heavier nuclei may be important. An application of our procedure and related ideas to fp-shell nuclei such as 76Ge should be feasible within coupled-cluster theory.

Deepshikha Shukla; Jonathan Engel; Petr Navratil

2011-08-15T23:59:59.000Z

299

Chiral Two-Body Currents and Neutrinoless Double-Beta Decay in the QRPA  

E-Print Network [OSTI]

We test the effects of an approximate treatment of two-body contributions to the axial-vector current on the QRPA matrix elements for neutrinoless double-beta decay in a range of isotopes. The form and strength of the two-body terms come from chiral effective-field theory. The two-body currents typically reduce the matrix elements by about 20%, not as much as in shell-model calculations. One reason for the difference is that standard practice in the QRPA is to adjust the strength of the isoscalar pairing interaction to reproduce two-neutrino double-beta decay lifetimes. Another may be the larger QRPA single-particle space. Whatever the reasons, the effects on neutrinoless decay are significantly less than those on two-neutrino decay, both in the shell model and the QRPA.

J. Engel; F. Simkovic; P. Vogel

2014-03-31T23:59:59.000Z

300

The influence of cluster emission and the symmetry energy on neutron-proton spectral double ratios  

E-Print Network [OSTI]

Emissions of free neutrons and protons from the central collisions of 124Sn+124Sn and 112Sn+112Sn reactions are simulated using the Improved Quantum Molecular Dynamics model with two different density dependence of the symmetry energy in the nuclear equation of state. The constructed double ratios of the neutron to proton ratios of the two reaction systems are found to be sensitive to the symmetry terms in the EOS. The effect of cluster formation is examined and found to affect the double ratios mainly in the low energy region. In order to extract better information on symmetry energy with transport models, it is therefore important to have accurate data in the high energy region which also is affected minimally by sequential decays.

Y. X. Zhang; P. Danielewicz; M. Famiano; Z. Li; W. G. Lynch; M. B. Tsang

2007-08-27T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Radiative lifetime of barbell excitons in semiparabolic double quantum wells under intense laser fields  

Science Journals Connector (OSTI)

Abstract The binding energy and optical properties of barbell excitons in GaAs–Ga1?xAlxAs semiparabolic double quantum wells under intense laser fields are investigated. Calculations are performed within the effective mass and envelope-function approximations, including the conduction band nonparabolicity. The dependence of the binding energy, oscillator strength and exciton absorption spectrum on the laser field in symmetric and asymmetric quantum wells is studied by using a finite difference method. It is shown that the exciton radiative lifetime can be tuned to a large extent by a proper choice of the structure design (double well size, middle barrier position and its thickness) as well as by varying the laser field intensity.

E.C. Niculescu

2013-01-01T23:59:59.000Z

302

Half-lives of Double $\\beta ^+$-decay with Two Neutrinos  

E-Print Network [OSTI]

Nuclear double $\\beta ^-$-decays with two neutrinos were observed for many years and a systematic law describing the relation between their half-lives and decay energies was also proposed recently [Phys. Rev. C89, 064603 (2014)]. However, double $\\beta ^+$-decay ($\\beta ^+\\beta^+)$ with emission of both two positrons and two neutrinos has not been observed up to date. In this article, we perform a systematic analysis on the candidates of double $\\beta ^+$-decay, based on the 2012 nuclear mass table. Eight nuclei are found to be the good candidates for double $\\beta ^+$-decay and their half-lives are predicted according to the generalization of the systematic law to double $\\beta ^+$-decay. As far as we know, there is no theoretical result on double $\\beta ^+$-decay of nucleus $^{154}Dy$ and our result is the first prediction on this nucleus. This is also the first complete research on eight double $\\beta ^+$-decay candidates based on the available data of nuclear masses. It is expected that the calculated hal...

Ren, Yuejiao

2015-01-01T23:59:59.000Z

303

Restoration of Secondary Containment in Double Shell Tank (DST) Pits  

SciTech Connect (OSTI)

Cracks found in many of the double-shell tank (DST) pump and valve pits bring into question the ability of the pits to provide secondary containment and remain in compliance with State and Federal regulations. This study was commissioned to identify viable options for maintain/restoring secondary containment capability in these pits. The basis for this study is the decision analysis process which identifies the requirements to be met and the desired goals (decision criteria) that each option will be weighed against. A facilitated workshop was convened with individuals knowledgeable of Tank Farms Operations, engineering practices, and safety/environmental requirements. The outcome of this workshop was the validation or identification of the critical requirements, definition of the current problem, identification and weighting of the desired goals, baselining of the current repair methods, and identification of potential alternate solutions. The workshop was followed up with further investigations into the potential solutions that were identified in the workshop and through other efforts. These solutions are identified in the body of this report. Each of the potential solutions were screened against the list of requirements and only those meeting the requirements were considered viable options. To expand the field of viable options, hybrid concepts that combine the strongest features of different individual approaches were also examined. Several were identified. The decision analysis process then ranked each of the viable options against the weighted decision criteria, which resulted in a recommended solution. The recommended approach is based upon installing a sprayed on coating system.

SHEN, E.J.

2000-10-05T23:59:59.000Z

304

Hugoniot measurements of double-shocked precompressed dense xenon plasmas  

Science Journals Connector (OSTI)

The current partially ionized plasmas models for xenon show substantial differences since the description of pressure and thermal ionization region becomes a formidable task, prompting the need for an improved understanding of dense xenon plasmas behavior at above 100 GPa. We performed double-shock compression experiments on dense xenon to determine accurately the Hugoniot up to 172 GPa using a time-resolved optical radiation method. The planar strong shock wave was produced using a flyer plate impactor accelerated up to ?6 km/s with a two-stage light-gas gun. The time-resolved optical radiation histories were acquired by using a multiwavelength channel optical transience radiance pyrometer. Shock velocity was measured and mass velocity was determined by the impedance-matching methods. The experimental equation of state of dense xenon plasmas are compared with the self-consistent fluid variational calculations of dense xenon in the region of partial ionization over a wide range of pressures and temperatures.

J. Zheng, Q. F. Chen, Y. J. Gu, and Z. Y. Chen

2012-12-12T23:59:59.000Z

305

Experimental research of double beta decay of atomic nuclei  

E-Print Network [OSTI]

Results of several double beta decay experiments, performed with the help of low background crystal scintillators, are presented. In particular, the half-life value of the two-neutrino double beta decay of 116-Cd has been measured as 2.9 10^{19} yr, and the new half-life limit on the neutrinoless double beta decay of 116-Cd has been established as >1.7 10^{23} yr at 90%, which corresponds to a restriction on the neutrino mass <1.7 eV. New half-life bounds on the level of 10^{17}-10^{21} yr were set for double beta processes in 64-Zn, 70-Zn, 106-Cd, 108-Cd, 114-Cd, 136-Ce, 138-Ce, 142-Ce, 160-Gd, 180-W, and 186-W by using low-background CdWO4, GSO, and ZnWO4 crystal scintillators. The claim of discovery of the neutrinoless double beta decay of 76-Ge [Mod. Phys. Lett. A 16 (2001) 2409] was analyzed. The demands of the future high sensitivity double beta decay experiments, aiming to observe the neutrinoless double beta decay or to advance restrictions on the neutrino mass to < 0.01 eV, were considered. Requirements for their sensitivity and discovery potential were formulated. Two projects of double beta experiments with a sensitivity on the level of 10^{26}-10^{27} yr (CAMEO and CARVEL projects) were discussed. Scintillation properties and radioactive contamination of CaWO4, ZnWO4, CdWO4, PbWO4, GSO(Ce), CeF3, yttrium-aluminum garnet doped with neodymium (YAG:Nd) crystal scintillators were studied. Applicability of these scintillators to search for double beta decay was discussed.

F. A. Danevich

2011-12-26T23:59:59.000Z

306

The formation of double-row oxide stripes during the initial oxidation of NiAl(100)  

SciTech Connect (OSTI)

The initial growth of ultrathin aluminum oxide film during the oxidation of NiAl(100) was studied with scanning tunneling microscopy. Our observations reveal that the oxide film grows initially as pairs of a double-row stripe structure with a lateral size equal to the unit cell of ?-Al{sub 2}O{sub 3}. These double-row stripes serve as the very basic stable building units of the ordered oxide phase for growing thicker bulk-oxide-like thin films. It is shown that the electronic properties of these ultrathin double-row stripes do not differ significantly from that of the clean NiAl surface; however, the thicker oxide stripes show a decreased conductivity.

Qin, Hailang; Zhou, Guangwen [Department of Mechanical Engineering and Multidisciplinary Program in Materials Science and Engineering, State University of New York, Binghamton, New York 13902 (United States)] [Department of Mechanical Engineering and Multidisciplinary Program in Materials Science and Engineering, State University of New York, Binghamton, New York 13902 (United States)

2013-08-28T23:59:59.000Z

307

Neutrinoless Double Beta Decay of Ge76, Se82, Mo100 and Xe136 to excited 0^+ states  

E-Print Network [OSTI]

The neutrinoless double beta decay transition to the first excited 0^+ collective final state is examined for A=76, 82, 100 and 136 nuclei by assuming light and heavy Majorana neutrino exchange mechanisms as well as the trilinear R-parity violating contributions. Realistic calculations of nuclear matrix elements have been performed within the renormalized quasiparticle random phase approximation. Transitions to the first excited two-quadrupole phonon 0^+ state are described within a boson expansion formalism and alternatively by using the operator recoupling method. We present the sensitivity parameters to different lepton number violating signals, which can be used in planning the neutrinoless double beta decay experiments. The half-life of neutrinoless double beta decay to the first excited state 0^+_1 is by a factor of 10 to 100 larger than that of the transition to the ground state.

F. Simkovic; M. Nowak; W. A. Kaminski; A. A. Raduta; Amand Faessler

2001-07-06T23:59:59.000Z

308

Superconvergence of period doubling cascade in trapezoid maps  

E-Print Network [OSTI]

In the symmetric and the asymmetric trapezoid maps, as a slope of the trapezoid is increased, the period doubling cascade occurs and the symbolic sequence of periodic points is the Metropolis-Stein-Stein sequence and the convergence of the onset point of the period 2^m solution to the accumulation point is exponentially fast. We reported these results previously. In this paper, we give the detailed description of the proof on the results. Further, we study the period doubling cascade starting from period p solution and show the superconvergence of the period doubling cascade.

T. Uezu

2000-01-12T23:59:59.000Z

309

Photo-double-ionization of the nitrogen molecule  

Science Journals Connector (OSTI)

The triple differential cross sections of the photo-double-ionization of the nitrogen molecule to the X 1?+g and a3?u N22+ states have been measured at about 20 eV above their respective ionization thresholds in the equal energy sharing kinematics and calculated using a model which makes use of correlated two-center double continuum wave functions. The comparison of the results with those obtained by the Gaussian parametrization method applied in the past with success to heliumlike targets shows the influence of the molecular nature of the N2 target in the photo-double-ionization.

P. Bolognesi; B. Joulakian; A. A. Bulychev; O. Chuluunbaatar; L. Avaldi

2014-05-07T23:59:59.000Z

310

E-Print Network 3.0 - aligned double-walled carbon Sample Search...  

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

Summary: , and H. M. Cheng. Polarized raman analysis of aligned double- walled carbon nanotubes. Physical Review B... Nonlinear Oscillations of a Double-Walled Carbon Nanotube...

311

Neutrinoless double beta decay in deformed nuclei: its implications in particle and nuclear physics .  

E-Print Network [OSTI]

??In my thesis, we calculated the Nuclear Matrix Elements (NME) for neutrinoless double beta decay (0??? decay). Neutrinoless double beta decay is a rare nuclear… (more)

Fang, DongLiang

2011-01-01T23:59:59.000Z

312

SciTech Connect: What can we learn from neutrinoless double beta...  

Office of Scientific and Technical Information (OSTI)

What can we learn from neutrinoless double beta decay experiments? Citation Details In-Document Search Title: What can we learn from neutrinoless double beta decay experiments?...

313

A Search for Neutrinoless Double-Beta Decay with EXO-200 .  

E-Print Network [OSTI]

??This work presents a search for neutrinoless double beta decay of 136Xe using data from the EXO-200 detector collected between 2011 and 2012. Neutrinoless double… (more)

Slutsky, Simon

2013-01-01T23:59:59.000Z

314

Mass Transfer between Double White Dwarfs  

E-Print Network [OSTI]

Three periodically variable stars have recently been discovered (V407 Vul, P=9.5 min; ES Cet, P=10.3 min; RX J0806.3+1527, P=5.3 min) with properties that suggest that their photometric periods are also their orbital periods, making them the most compact binary stars known. If true, this might indicate that close, detached, double white dwarfs are able to survive the onset of mass transfer caused by gravitational wave radiation and emerge as the semi-detached, hydrogen-deficient stars known as the AM CVn stars. The accreting white dwarfs in such systems are large compared to the orbital separations. This has two effects: first it makes it likely that the mass transfer stream can hit the accretor directly, and second it causes a loss of angular momentum from the orbit which can destabilise the mass transfer unless the angular momentum lost to the accretor can be transferred back to the orbit. The effect of the destabilisation is to reduce the number of systems which survive mass transfer by as much as one hundred-fold. In this paper we analyse this destabilisation and the stabilising effect of a dissipative torque between the accretor and the binary orbit. We obtain analytic criteria for the stability of both disc-fed and direct impact accretion, and carry out numerical integrations to assess the importance of secondary effects, the chief one being that otherwise stable systems can exceed the Eddington accretion rate. We show that to have any effect upon survival rates, the synchronising torque must act on a timescale of order 1000 years or less. If synchronisation torques are this strong, then they will play a significant role in the spin rates of white dwarfs in cataclysmic variable stars as well.

T. R. Marsh; G. Nelemans; D. Steeghs

2003-12-22T23:59:59.000Z

315

Sense and sensitivity of double beta decay experiments  

SciTech Connect (OSTI)

The search for neutrinoless double beta decay is a very active field in which the number of proposals for next-generation experiments has proliferated. In this paper we attempt to address both the sense and the sensitivity of such proposals. Sensitivity comes first, by means of proposing a simple and unambiguous statistical recipe to derive the sensitivity to a putative Majorana neutrino mass, m{sub ??}. In order to make sense of how the different experimental approaches compare, we apply this recipe to a selection of proposals, comparing the resulting sensitivities. We also propose a ''physics-motivated range'' (PMR) of the nuclear matrix elements as a unifying criterium between the different nuclear models. The expected performance of the proposals is parametrized in terms of only four numbers: energy resolution, background rate (per unit time, isotope mass and energy), detection efficiency, and ?? isotope mass. For each proposal, both a reference and an optimistic scenario for the experimental performance are studied. In the reference scenario we find that all the proposals will be able to partially explore the degenerate spectrum, without fully covering it, although four of them (KamLAND-Zen, CUORE, NEXT and EXO) will approach the 50 meV boundary. In the optimistic scenario, we find that CUORE and the xenon-based proposals (KamLAND-Zen, EXO and NEXT) will explore a significant fraction of the inverse hierarchy, with NEXT covering it almost fully. For the long term future, we argue that {sup 136}Xe-based experiments may provide the best case for a 1-ton scale experiment, given the potentially very low backgrounds achievable and the expected scalability to large isotope masses.

Gómez-Cadenas, J.J.; Martín-Albo, J.; Sorel, M.; Ferrario, P.; Monrabal, F.; Muñoz, J. [Instituto de Física Corpuscular (IFIC), CSIC and Universidad de Valencia, Calle Catedrático José Beltrán 2, 46071 Valencia (Spain); Novella, P. [Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avda. Complutense 22, 28040 Madrid (Spain); Poves, A., E-mail: gomez@mail.cern.ch, E-mail: justo.martin-albo@ific.uv.es, E-mail: sorel@ific.uv.es, E-mail: paola.ferrario@ific.uv.es, E-mail: francesc.monrabal@ific.uv.es, E-mail: jmunoz@ific.uv.es, E-mail: pau.novella@ciemat.es, E-mail: alfredo.poves@uam.es [Dpto. de de Física Teórica and IFT-UAM/CSIC, Universidad Autónoma de Madrid, Calle Nicolás Cabrera 13-15, 28049 Madrid (Spain)

2011-06-01T23:59:59.000Z

316

High Peak-to-Valley Current Ratio GaAs/InGaAs/InAs Double Stepped Quantum Well Resonant Interband Tunneling Diodes at Room Temperature  

Science Journals Connector (OSTI)

A high ratio of the peak current density to the valley current density of current-voltage characteristic is accomplished for the double stepped quantum well resonant interband tunneling diode (DSQW RITD). Results for good quantum confinement effect and long drift layer with deep quantum well GaAs/In0.59Ga0.41As/InAs DSQW RITD that has a lower valley current density of about 0.98 A/cm2 and a higher peak-to-valley current ratio (PVCR) reached 622 at room temperature than conventionally designed double quantum well resonant interband tunneling diodes (DQW RITDs) are presented. This PVCR value is also the highest value than those of the other resonant tunneling diodes.

Chih-Chin Yang; Kuang-Chih Huang; Yan-Kuin Su

1996-01-01T23:59:59.000Z

317

Radionuclides, Trace Metals, and Organic Compounds in Shells of Native Freshwater Mussels Along the Hanford Reach of the Columbia River: 6000 Years Before Present to Current Times  

SciTech Connect (OSTI)

This report documents concentrations of radionuclides, trace metals, and semivolatile organic compounds measured in shell samples of the western pearl shell mussel collected along the Hanford Reach of the Columbia River.

B. L. Tiller; T. E. Marceau

2006-01-25T23:59:59.000Z

318

Abstract 642: Transcend, a protein vector for brain delivery, allows trastuzumab to reach the brain at effective concentration after incorporation to form BT2111  

Science Journals Connector (OSTI)

...Abstract 642: Transcend, a protein vector for brain delivery, allows trastuzumab to reach the brain at effective concentration after incorporation...patients eventually succumb to metastases of the brain because the endothelial tight junctions of...

Reinhard Gabathuler; Timothy Z. Vitalis; Mohamed I. Nounou; Chris E. Adkins; Paul R. Lockman; Wilfred A. Jefferies

2014-10-01T23:59:59.000Z

319

DUF6 Project Doubles Production in 2013 | Department of Energy  

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

DUF6 Project Doubles Production in 2013 DUF6 Project Doubles Production in 2013 DUF6 Project Doubles Production in 2013 November 26, 2013 - 12:00pm Addthis LEXINGTON, Ky. - The conversion plants at EM's Paducah and Portsmouth sites surpassed a fiscal year 2013 goal by converting 13,679 metric tons of depleted uranium hexafluoride (DUF6), more than doubling production a year earlier. EM's Portsmouth Paducah Project Office (PPPO) and contractor Babcock & Wilcox Conversion Services LLC (BWCS) began operations in 2011 to convert the nation's 800,000-metric-ton inventory of DUF6 to more benign forms for sale, ultimate disposal or long-term storage. "Since 2011, we have been ramping up production to determine and achieve the safe, sustainable operating rate of the plants," said George E.

320

Non-Double-Couple Microearthquakes At Long Valley Caldera, California,  

Open Energy Info (EERE)

Non-Double-Couple Microearthquakes At Long Valley Caldera, California, Non-Double-Couple Microearthquakes At Long Valley Caldera, California, Provide Evidence For Hydraulic Fracturing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Non-Double-Couple Microearthquakes At Long Valley Caldera, California, Provide Evidence For Hydraulic Fracturing Details Activities (1) Areas (1) Regions (0) Abstract: Most of 26 small (0.4<~M<~3.1) microearthquakes at Long Valley caldera in mid-1997, analyzed using data from a dense temporary network of 69 digital three-component seismometers, have significantly non-double-couple focal mechanisms, inconsistent with simple shear faulting. We determined their mechanisms by inverting P- and S-wave polarities and amplitude ratios using linear-programming methods, and

Note: This page contains sample records for the topic "differences reaching double" 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

DUF6 Project Doubles Production in 2013 | Department of Energy  

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

DUF6 Project Doubles Production in 2013 DUF6 Project Doubles Production in 2013 DUF6 Project Doubles Production in 2013 November 26, 2013 - 12:00pm Addthis LEXINGTON, Ky. - The conversion plants at EM's Paducah and Portsmouth sites surpassed a fiscal year 2013 goal by converting 13,679 metric tons of depleted uranium hexafluoride (DUF6), more than doubling production a year earlier. EM's Portsmouth Paducah Project Office (PPPO) and contractor Babcock & Wilcox Conversion Services LLC (BWCS) began operations in 2011 to convert the nation's 800,000-metric-ton inventory of DUF6 to more benign forms for sale, ultimate disposal or long-term storage. "Since 2011, we have been ramping up production to determine and achieve the safe, sustainable operating rate of the plants," said George E.

322

Kinetic Alfven double layer formed by electron viscosity  

SciTech Connect (OSTI)

The effect of the electron viscosity on the kinetic Alfven solitary wave is investigated. It is found that small electron viscosity changes the electron motion along the magnetic field producing a boundary layer, and thus that in a low beta electron-ion plasma({beta} Much-Less-Than m{sub e}/m{sub i}), an obliquely propagating kinetic solitary Alfven wave can become a double layer. This double layer can exist in the sub-Alfvenic and super-Alfvenic regimes. The length scale of density drop for this double layer is on the order of that of the conventional kinetic solitary Alfven wave, and thus this double layer can accelerate electrons on a very short length scale.

Woo, M. H.; Ryu, C.-M. [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Choi, C. R. [Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305-701 (Korea, Republic of)

2012-07-15T23:59:59.000Z

323

Superconductivity in Bundles of Double-Wall Carbon Nanotubes  

E-Print Network [OSTI]

We present electrical and thermal specific heat measurements that show superconductivity in double-wall carbon nanotube (DWCNT) bundles. Clear evidence, comprising a resistance drop as a function of temperature, magnetoresistance ...

Shi, Wu

324

Characterization of double walled carbon nanotubes-polyvinylidene fluoride nanocomposites  

E-Print Network [OSTI]

One of the main objectives of this thesis is to disperse double-walled carbon nanotubes (DWNT) in a polyvinylidene fluoride (PVDF) matrix, and to characterize the resulting composite using electrical, thermal, and mechanical characterization...

Almasri, Atheer Mohammad

2007-04-25T23:59:59.000Z

325

Student's difficulties with the theory of double-slit interference  

E-Print Network [OSTI]

developed abstract thinking abilities [3, 4]. The remainder are unable to learn physics by listening arrangement for theoretical treatment of double-slit interference. Figure 2. The mechanical device

Planin�iè, Gorazd

326

Young’s double-slit interference experiment with electrons  

Science Journals Connector (OSTI)

In this short Note we report a method for producing samples containing two nano-sized slits suitable for demonstrating to undergraduate and graduate students the double-slit electron interference experiment in a conventional transmission electron microscope.

S. Frabboni; G. C. Gazzadi; G. Pozzi

2007-01-01T23:59:59.000Z

327

Comment on "Evidence for Neutrinoless Double Beta Decay"  

E-Print Network [OSTI]

We comment on the recent claim for the experimental observation of neutrinoless double-beta decay. We discuss several limitations in the analysis provided in that paper and conclude that there is no basis for the presented claim.

C. E. Aalseth; F. T. Avignone III; A. Barabash; F. Boehm; R. L. Brodzinski; J. I. Collar; P. J. Doe; H. Ejiri; S. R. Elliott; E. Fiorini; R. J. Gaitskell; G. Gratta; R. Hazama; K. Kazkaz; G. S. King III; R. T. Kouzes; H. S. Miley; M. K. Moe; A. Morales; J. Morales; A. Piepke; R. G. H. Robertson; W. Tornow; P. Vogel; R. A. Warner; J. F. Wilkerson

2002-05-22T23:59:59.000Z

328

Double Auction experiments and their relevance for emissions trading  

Science Journals Connector (OSTI)

In this article, we discuss selected methodological problems from previous Double Auction (DA) experiments and analyze the two following questions experimentally. Firstly, does the framing of the decision situati...

Bodo Sturm

2008-01-01T23:59:59.000Z

329

Glass Does a Double-Take | Advanced Photon Source  

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

| 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Glass Does a Double-Take APRIL 4, 2008 Bookmark and Share Predicted phase diagram as a...

330

Double beta decay experiments: beginning of a new era  

E-Print Network [OSTI]

The review of current experiments on search and studying of double beta decay processes is done. Results of the most sensitive experiments are discussed and values of modern limits on effective Majorana neutrino mass ($) are given. New results on two neutrino double beta decay are presented. The special attention is given to new current experiments with mass of studied isotopes more than 100 kg, EXO--200 and KamLAND--Zen. These experiments open a new era in research of double beta decay. In the second part of the review prospects of search for neutrinoless double beta decay in new experiments with sensitivity to $$ at the level of $\\sim 0.01-0.1$ eV are discussed. Parameters and characteristics of the most perspective projects (CUORE, GERDA, MAJORANA, SuperNEMO, EXO, KamLAND--Zen, SNO+) are given.

A. S. Barabash

2012-09-19T23:59:59.000Z

331

Muon-Induced Backgrounds in Double Chooz Emily Conover  

E-Print Network [OSTI]

to scintillator 8 MeV n capture energy, 30µs backgrounds due to muons remain E¯e = Ee+ + 10-40keV En + 1.8MeMuon-Induced Backgrounds in Double Chooz Emily Conover University of Chicago Second Thesis and Stopped Muons 9Li and 8He 3. Double Chooz Results 4. Conclusions Timeline/Future work Emily Conover (Univ

332

Integrated Hatchery Operations Team: Operations Plans for Anadromous Fish Production Facilities in the Columbia River Basin, Volume IV of IV; Washington: Rocky Reach Hatchery Addendum, 1992 Annual Report.  

SciTech Connect (OSTI)

Rocky Reach Hatchery is located along the Columbia Paver, just downstream from Rocky Reach Dam. Site elevation is 800 feet above sea level. The Turtle Rock Island facility, located 2 miles upstream, is operated as a satellite facility (shared with the Washington Department of Wildlife). The facility is staffed with 2.75 FTE`S. The hatchery was originally designed as a mile-long spawning channel at Turtle Rock Island. Rearing units consist of eight vinyl raceways at Rocky Reach and four rearing ponds at Turtle Rock. Water rights are held by Chelan County PUD and total 3,613 gpm from the Columbia River. Water available for use in the Turtle Rock rearing ponds averages 12,000 gpm from the Columbia River. Rocky Reach Hatchery and the Turtle Rock satellite facility are owned by Chelan County PUD. They are operated as mitigation facilities for the fishery impacts caused by the construction and operation of Rocky Reach Dam. Rocky Reach Hatchery is used for incubation and early rearing of upriver bright (URB) fall chinook. Fingerlings are later transferred to the Turtle Rock facility for final rearing and release.

Peck, Larry

1993-08-01T23:59:59.000Z

333

What can we learn from neutrinoless double beta decay experiments?  

E-Print Network [OSTI]

We assess how well next generation neutrinoless double beta decay and normal neutrino beta decay experiments can answer four fundamental questions. 1) If neutrinoless double beta decay searches do not detect a signal, and if the spectrum is known to be inverted hierarchy, can we conclude that neutrinos are Dirac particles? 2) If neutrinoless double beta decay searches are negative and a next generation ordinary beta decay experiment detects the neutrino mass scale, can we conclude that neutrinos are Dirac particles? 3) If neutrinoless double beta decay is observed with a large neutrino mass element, what is the total mass in neutrinos? 4) If neutrinoless double beta decay is observed but next generation beta decay searches for a neutrino mass only set a mass upper limit, can we establish whether the mass hierarchy is normal or inverted? We base our answers on the expected performance of next generation neutrinoless double beta decay experiments and on simulations of the accuracy of calculations of nuclear matrix elements.

John N. Bahcall; Hitoshi Murayama; Carlos Pena-Garay

2004-03-15T23:59:59.000Z

334

THE DOUBLE PULSAR: EVIDENCE FOR NEUTRON STAR FORMATION WITHOUT AN IRON CORE-COLLAPSE SUPERNOVA  

SciTech Connect (OSTI)

The double pulsar system PSR J0737-3039A/B is a double neutron star binary, with a 2.4 hr orbital period, which has allowed measurement of relativistic orbital perturbations to high precision. The low mass of the second-formed neutron star, as well as the low system eccentricity and proper motion, point to a different evolutionary scenario compared to most other known double neutron star systems. We describe analysis of the pulse profile shape over 6 years of observations and present the resulting constraints on the system geometry. We find the recycled pulsar in this system, PSR J0737-3039A, to be a near-orthogonal rotator with an average separation between its spin and magnetic axes of 90 Degree-Sign {+-} 11 Degree-Sign {+-} 5 Degree-Sign . Furthermore, we find a mean 95% upper limit on the misalignment between its spin and orbital angular momentum axes of 3. Degree-Sign 2, assuming that the observed emission comes from both magnetic poles. This tight constraint lends credence to the idea that the supernova that formed the second pulsar was relatively symmetric, possibly involving electron capture onto an O-Ne-Mg core.

Ferdman, R. D.; Kramer, M.; Stappers, B. W.; Lyne, A. G. [School of Physics and Astronomy, University of Manchester, Jodrell Bank Centre for Astrophysics, Alan Turing Building, Oxford Road, Manchester M13 9PL (United Kingdom)] [School of Physics and Astronomy, University of Manchester, Jodrell Bank Centre for Astrophysics, Alan Turing Building, Oxford Road, Manchester M13 9PL (United Kingdom); Stairs, I. H. [Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada)] [Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1 (Canada); Breton, R. P. [School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ (United Kingdom)] [School of Physics and Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ (United Kingdom); McLaughlin, M. A. [Department of Physics, West Virginia University, Morgantown, WV 26505 (United States)] [Department of Physics, West Virginia University, Morgantown, WV 26505 (United States); Freire, P. C. C. [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany)] [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany); Possenti, A. [INAF-Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, I-09012 Capoterra (Italy)] [INAF-Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, I-09012 Capoterra (Italy); Kaspi, V. M. [Department of Physics, McGill University, Ernest Rutherford Physics Building, 3600 University Street, Montreal, QC H3A 2T8 (Canada)] [Department of Physics, McGill University, Ernest Rutherford Physics Building, 3600 University Street, Montreal, QC H3A 2T8 (Canada); Manchester, R. N., E-mail: ferdman@jb.man.ac.uk [CSIRO Astronomy and Space Science, Australia Telescope National Facility, Epping, NSW 1710 (Australia)

2013-04-10T23:59:59.000Z

335

Double wells, scalar fields and quantum phase transitions in ions traps  

E-Print Network [OSTI]

Since Hund's work on the ammonia molecule, the double well potential has formed a key paradigm in physics. Its importance is further underlined by the central role it plays in the Landau theory of phase transitions. Recently, the study of entanglement properties of many-body systems has added a new angle to the study of quantum phase transitions of discrete and continuous degrees of freedom, i.e., spin and harmonic chains. Here we show that control of the radial degree of freedom of trapped ion chains allows for the simulation of linear and non-linear Klein-Gordon fields on a lattice, in which the parameters of the lattice, the non-linearity and mass can be controlled at will. The system may be driven through a phase transition creating a double well potential between different configurations of the ion crystal. The dynamics of the system are controllable, local properties are measurable and tunnelling in the double well potential would be observable.

A. Retzker; R. Thompson; D. Segal; M. B. Plenio

2008-01-04T23:59:59.000Z

336

Next Generation Neutrinoless Double -Decay Experiments Andreas Piepke, R.G. Hamish Robertson  

E-Print Network [OSTI]

of this ambitious program...". The Long Range Plan further states: "... neutrinoless double beta decay experiments

337

Dynamic-angle spinning and double rotation of quadrupolar nuclei  

SciTech Connect (OSTI)

Nuclear magnetic resonance (NMR) spectroscopy of quadrupolar nuclei is complicated by the coupling of the electric quadrupole moment of the nucleus to local variations in the electric field. The quadrupolar interaction is a useful source of information about local molecular structure in solids, but it tends to broaden resonance lines causing crowding and overlap in NMR spectra. Magic- angle spinning, which is routinely used to produce high resolution spectra of spin-{1/2} nuclei like carbon-13 and silicon-29, is incapable of fully narrowing resonances from quadrupolar nuclei when anisotropic second-order quadrupolar interactions are present. Two new sample-spinning techniques are introduced here that completely average the second-order quadrupolar coupling. Narrow resonance lines are obtained and individual resonances from distinct nuclear sites are identified. In dynamic-angle spinning (DAS) a rotor containing a powdered sample is reoriented between discrete angles with respect to high magnetic field. Evolution under anisotropic interactions at the different angles cancels, leaving only the isotropic evolution of the spin system. In the second technique, double rotation (DOR), a small rotor spins within a larger rotor so that the sample traces out a complicated trajectory in space. The relative orientation of the rotors and the orientation of the larger rotor within the magnetic field are selected to average both first- and second-order anisotropic broadening. The theory of quadrupolar interactions, coherent averaging theory, and motional narrowing by sample reorientation are reviewed with emphasis on the chemical shift anisotropy and second-order quadrupolar interactions experienced by half-odd integer spin quadrupolar nuclei. The DAS and DOR techniques are introduced and illustrated with application to common quadrupolar systems such as sodium-23 and oxygen-17 nuclei in solids.

Mueller, K.T. (Lawrence Berkeley Lab., CA (United States) California Univ., Berkeley, CA (United States). Dept. of Chemistry)

1991-07-01T23:59:59.000Z

338

Fine Structure of the Radial Breathing Mode in Double-Wall Carbon Nanotubes  

E-Print Network [OSTI]

The analysis of the Raman scattering cross section of the radial breathing modes of double-wall carbon nanotubes allowed to determine the optical transitions of the inner tubes. The Raman lines are found to cluster into species with similar resonance behavior. The lowest components of the clusters correspond well to SDS wrapped HiPco tubes. Each cluster represents one particular inner tube inside different outer tubes and each member of the clusters represents one well defined pair of inner and outer tubes. The number of components in one cluster increases with decreasing of the inner tube diameter and can be as high as 14.

R. Pfeiffer; F. Simon; H. Kuzmany; V. N. Popov

2005-08-09T23:59:59.000Z

339

Heat flux characteristics in an atmospheric double arc argon plasma jet  

SciTech Connect (OSTI)

In this study, the axial evolution of heat flux excited by a double arc argon plasma jet impinging on a flat plate is determined, while the nonstationary behavior of the heat flux is investigated by combined means of the fast Fourier transform, Wigner distribution, and short-time Fourier transform. Two frequency groups (<1 and 2-10 kHz) are identified in both the Fourier spectrum and the time-frequency distributions, which suggest that the nature of fluctuations in the heat flux is strongly associated with the dynamic behavior of the plasma arc and the engulfment of ambient air into different plasma jet regions.

Tu Xin; Yu Liang; Yan Jianhua; Cen Kefa [Zhejiang University, Hangzhou 310027 (China); Cheron, Bruno [UMR 6614 CNRS CORIA, Saint Etienne du Rouvray 76801 (France)

2008-10-13T23:59:59.000Z

340

Tunneling dynamics and phase transition of a Bose-Fermi mixture in a double well  

Science Journals Connector (OSTI)

The coherent nonlinear tunneling dynamics of a boson-fermion mixture in a double-well potential is studied in this paper. Four types of phase are found for the mixture. The first one is two species localizing in different potential wells. The second one is two species coexisting in the same well. The third one is two species equally populated in two wells. The fourth one is one species equally populated in two wells while the other species is in one well. The phase transitions among these four states have been investigated. The interspecies and intraspecies interactions as well as bosonic and fermionic numbers can dramatically affect these phase transitions.

Peng-Tang Qi and Wen-Shan Duan

2011-09-22T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Anatomy of nuclear matrix elements for neutrinoless double-beta decay  

E-Print Network [OSTI]

We show that, within the Quasiparticle Random Phase Approximation (QRPA) and the renormalized QRPA (RQRPA) based on the Bonn CD nucleon-nucleon interaction, the competition between the pairing and the neutron-proton particle-particle and particle-hole interactions causes contributions to the neutrinoless double-beta decay matrix element to nearly vanish at internucleon distances of more than 2 or 3 fermis. As a result, the matrix element is more sensitive to short-range/high-momentum physics than one naively expects. We analyze various ways of treating that physics and quantify the uncertainty it produces in the matrix elements, with three different treatments of short-range correlations.

Fedor Simkovic; Amand Faessler; Vadim Rodin; Petr Vogel; Jonathan Engel

2007-10-10T23:59:59.000Z

342

Analytically expressed constraint on two Majorana phases in neutrinoless double beta decay  

E-Print Network [OSTI]

We assume that neutrinoless double beta decay is caused by the exchange of three light Majorana neutrinos. Under this assumption, we obtain, by the method of perturbation, the equation representing the isocontour of effective Majorana mass which is the function of two CP-violating Majorana phases. The equation representing the isocontour (constraint equation between two Majorana phases) is expressed analytically by six parameters: two lepton mixing angles, two kinds of neutrino mass squared differences, lightest neutrino mass scale, and the effective Majorana mass. We discuss how the constraint equation between two Majorana phases changes when the lightest neutrino mass scale is varied.

Maedan, Shinji

2014-01-01T23:59:59.000Z

343

Assessment of the Species Composition, Densities, and Distribution of Native Freshwater Mussels along the Benton County Shoreline of the Hanford Reach, Columbia River, 2004  

SciTech Connect (OSTI)

The Hanford Reach of the Columbia River is the last unimpounded section of the river and contains substrate characteristics (cobble, gravel, sand/silt) suitable for many of the native freshwater mussels known to exist in the Pacific Northwest. Information concerning the native mussel species composition, densities, and distributions in the mainstem of the Columbia River is limited. Under funding from the U.S. Department of Energy Richland Operations Office (DOE-RL), Pacific Northwest National Laboratory conducted an assessment of the near-shore habitat on the Hanford Reach. Surveys conducted in 2004 as part of the Ecological Monitoring and Compliance project documented several species of native mussels inhabiting the near-shore habitat of the Hanford Reach. Findings reported here may be useful to resource biologists, ecologists, and DOE-RL to determine possible negative impacts to native mussels from ongoing near-shore remediation activities associated with Hanford Site cleanup. The objective of this study was to provide an initial assessment of the species composition, densities, and distribution of the freshwater mussels (Margaritiferidae and Unionidae families) that exist in the Hanford Reach. Researchers observed and measured 201 live native mussel specimens. Mussel density estimated from these surveys is summarized in this report with respect to near-shore habitat characteristics including substrate size, substrate embeddedness, relative abundance of aquatic vegetation, and large-scale geomorphic/hydrologic characteristics of the Hanford Reach.

Mueller, Robert P.; Tiller, Brett L.; Bleich, Matthew D.; Turner, Gerald; Welch, Ian D.

2011-01-31T23:59:59.000Z

344

The new generation of double beta decay experiments: are there any limitations?  

Science Journals Connector (OSTI)

The new generation of experiments to search for neutrinoless double beta decay with a sensitivity to the effective Majorana neutrino mass at the level ~1–5 meV is discussed. Possible restrictions on the achievement of this goal (the difficulty of enriching the large quantity of isotopes, the inability to reach the very low background levels, the difficulty of achieving the necessary energy resolution and the possible cost of experiments) are considered. It is shown that for the realization of such an ambitious project, 10 tons (or more) of enriched isotope is required. The background index must be at the level ?10?5–10?6 counts (kg keV yr)?1. The energy resolution of the detector must not be worse than 1%. It is shown that a 130TeO2 low temperature bolometer looks to be the most realistic candidate for such an experiment. Under some conditions, experiments with 76Ge, 100Mo and 136Xe can be realized too.

A S Barabash

2012-01-01T23:59:59.000Z

345

NREL: News Feature - Nation Could Double Energy Productivity  

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

Nation Could Double Energy Productivity Nation Could Double Energy Productivity February 7, 2013 Photo of NREL Director Dan Arvizu speaking at NREL. Enlarge image NREL Director Dan Arvizu and a blue-ribbon panel of 20 energy experts said that the United States can double its energy productivity by 2030 - and do so in ways that bolster the nation's economy. In this photo, Arvizu speaks to commercial building stakeholders at NREL. Credit: Dennis Schroeder Researchers at the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) have long understood that using energy more efficiently can be just as beneficial as finding new ways to produce energy more efficiently. On Feb. 7, NREL Director Dan Arvizu and a blue-ribbon panel of 20 energy experts drove that message home, declaring that the United States can

346

Q value of the 100Mo Double-Beta Decay  

E-Print Network [OSTI]

Penning trap measurements using mixed beams of 100Mo - 100Ru and 76Ge - 76Se have been utilized to determine the double-beta decay Q-values of 100Mo and 76Ge with uncertainties less than 200 eV. The value for 76Ge, 2039.04(16) keV is in agreement with the published SMILETRAP value. The new value for 100Mo, 3034.40(17) keV is 30 times more precise than the previous literature value, sufficient for the ongoing neutrinoless double-beta decay searches in 100Mo. Moreover, the precise Q-value is used to calculate the phase-space integrals and the experimental nuclear matrix element of double-beta decay.

S. Rahaman; V. -V. Elomaa; T. Eronen; J. Hakala; A. Jokinen; J. Julin; A. Kankainen; A. Saastamoinen; J. Suhonen; C. Weber; J. Äystö

2007-12-20T23:59:59.000Z

347

Implementation of Double-Waist Chicane Optics in SPEAR3  

SciTech Connect (OSTI)

The SPEAR3 accelerator upgrade opened up two 7.6m racetrack straights in the magnet lattice. In one of these straights, we recently added a magnetic chicane to separate two insertion device (ID) beam lines by 10mrad. A quadrupole triplet in the center creates a ''double focus'' optics with {beta}y = 1.6m at the middle of each ID, hence the term ''double-waist chicane''. The new optics also reduced {beta}y in the four matching straights adjacent to the racetrack straights to 2.5m. In this paper, we outline design features of the optics and physical implementation of the lattice.

Corbett, J.; Cornacchia, M.; Dao, T.; Dell'Orco, D.; Rafael, F.; Harrington, D.; Hettel, R.; Huang, X.; Nosochkov, Y.; Rabedeau, T.; Rarback, H.; Ringwall, A.; Safranek,; Scott, B.; Sebek, J.; Tanabe, J.; Terebilo, A.; Wermelskirchen, C.; Widmeyer, M.; /SLAC, SSRL; Yoon, Moohyun; /POSTECH

2006-08-16T23:59:59.000Z

348

Progress toward Ignition with Noncryogenic Double-Shell Capsules  

SciTech Connect (OSTI)

Inertial confinement fusion implosions using capsules with two concentric shells separated by a low density region (double shells) are reported which closely follow one dimensional (1D) radiatively driven hydrodynamics simulations. Capsule designs which mitigate Au M -band radiation asymmetries appear to correspond more closely to 1D simulations than targets lacking mitigation of hohlraum drive M -band nonuniformities. One capsule design achieves over 50% of the unperturbed 1D calculated yield at a convergence ratio of 25.5, comparable to that of a double-shell design for an ignition capsule at the National Ignition Facility. (c) 2000 The American Physical Society.

Varnum, W. S.; Delamater, N. D.; Evans, S. C.; Gobby, P. L.; Moore, J. E.; Wallace, J. M.; Watt, R. G.; Colvin, J. D.; Turner, R.; Glebov, V. (and others) [and others

2000-05-29T23:59:59.000Z

349

Microconvection effects at double?diffusive gradient zone boundaries  

Science Journals Connector (OSTI)

Microconvection in double?diffusive gradient zones is predicted to occur near the zone boundaries because of effects of boundary undulation and temperature modulation caused by impinging thermals in adjacent convecting zones. The equations that govern convective motion in a double?diffusive horizontal slab are solved for boundary conditions that incorporate these effects. Solution of these equations predicts a weakened salinity gradient near the gradient zone boundary between the rising thermals. When the salinity gradient is too weak instability occurs taking the form of descending plumes which are seen in experiments.

John R. Hull; Yojana Katti

1988-01-01T23:59:59.000Z

350

Empirical Survey of Neutrinoless Double Beta Decay Matrix Elements  

E-Print Network [OSTI]

Neutrinoless double beta decay has been the subject of intensive theoretical work as it represents the only practical approach to discovering whether neutrinos are Majorana particles or not, and whether lepton number is a conserved quantum number. Available calculations of matrix elements and phase-space factors are reviewed from the perspective of a future large-scale experimental search for neutrinoless double beta decay. Somewhat unexpectedly, a uniform inverse correlation between phase space and the square of the nuclear matrix element emerges. As a consequence, no isotope is either favored or disfavored; all have qualitatively the same decay rate per unit mass for any given value of the Majorana mass.

R. G. H. Robertson

2013-01-07T23:59:59.000Z

351

When should a firm use billboard advertising? A conceptual look at differing levels of recall  

Science Journals Connector (OSTI)

Billboards are often used because the cost to reach consumers is relatively cheaper than other forms of media. However, just because a billboard ad reaches a consumer does not mean a consumer pays attention to the ad or even processes it. Therefore, in this paper, two constructs are proposed to help managers evaluate the type of product or service they sell and if billboards would be the most effective way of reaching the target audience. A model and matrix outlining the hypothesised differences in billboard advertising are presented.

Scott Wysong; Sri Beldona

2004-01-01T23:59:59.000Z

352

Experimental Investigation of Double-Swirled Non-premixed Syngas Flames by Planar Laser-Induced Fluorescence  

Science Journals Connector (OSTI)

Experimental measurements are carried out on a non-premixed model combustor, equipped with a double-swirled syngas burner. ... Various amounts of diluents, such as H2O, CO2, or N2, may also be added before syngas is burnt. ... Modifications of conventional natural-gas-fired burners for operation with syngas fuels using lean pre-mixed combustion is challenging due to the different physicochem. ...

Bing Ge; Shusheng Zang; Peiqing Guo; Yinsheng Tian

2012-02-13T23:59:59.000Z

353

IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 1, FEBRUARY 2004 691 equilibrium been reached in all iterations), if multiple Nash equilibria  

E-Print Network [OSTI]

is much more adaptable in near real time than traditional thermal plants and, thus, tends to enjoy. Rudnick, "Hydrothermal market simulator using game theory: Assessmant of market power," IEEE Trans. PowerIEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 1, FEBRUARY 2004 691 equilibrium been reached

Catholic University of Chile (Universidad Católica de Chile)

354

EXPLANATION OF SIGNIFICANT DIFFERENCES  

Office of Legacy Management (LM)

EXPLANATION OF SIGNIFICANT DIFFERENCES EXPLANATION OF SIGNIFICANT DIFFERENCES WELDON SPRING SITE February 2005 U.S. Department of Energy Office of Legacy Management FINAL: ESD Weldon Spring Site February 2005 1 EXPLANATION OF SIGNIFICANT DIFFERENCES WELDON SPRING SITE I Introduction This document is an Explanation of Significant Differences (ESD) for three Records of Decision (RODs) for the Weldon Spring site located in St. Charles County, Missouri. These RODs were signed by the U.S. Department of Energy (DOE) and the U.S. Environmental Protection Agency (EPA). The RODs addressed by this ESD are the following: * Chemical Plant Operable Unit (CPOU) ROD, signed in September 1993. This ROD

355

Double Shell Tank AY-102 Radioactive Waste Leak Investigation  

SciTech Connect (OSTI)

PowerPoint. The objectives of this presentation are to: Describe Effort to Determine Whether Tank AY-102 Leaked; Review Probable Causes of the Tank AY-102 Leak; and, Discuss Influence of Leak on Hanford’s Double-Shell Tank Integrity Program.

Washenfelder, Dennis J.

2014-04-10T23:59:59.000Z

356

Circuit QED in a double quantum dot system  

SciTech Connect (OSTI)

Strong coupling peculiar feature is demonstrated in a coupled qubit-resonator system consisting of a GaAs double quantum dot and a coplanar waveguide resonator. Qubit-resonator coupling strength (g and the decoherence rate ? are directly derived from the experiment, assuring a strong coupling condition (g/? ? 2)

Toida, Hiraku; Nakajima, Takashi; Komiyama, Susumu [Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 (Japan)

2013-12-04T23:59:59.000Z

357

Neutrinoless Double Beta Decay with R-parity Violation  

E-Print Network [OSTI]

We consider recently observed neutrinoless double beta decay in the context of the minimal supersymmetric standard model with R-parity violating couplings lambda^{'}. We observe that most of the current experimental bounds on the R-parity violating couplings do not exclude the possibility that the neutrinoless double beta decay is caused by R-parity violation. But if we consider K-bar{K} oscillation, we observe that we have to make the R-parity violating couplings generation-dependent to accomodate with the observed neutrinoless double beta decay. And furthermore, we need some mechanism to cancel the contribution to K-bar{K} mixing from a large R-parity violating coupling. We realized this cancellation by assuming that the first- and the second- generation of quark sector do not couple with the first-generation lepton sector by R-parity violating couplings except the term W=lambda_{111}^{'} L_{1} Q_{1} D_{1}^{c}, which is responsible for the observed neutrinoless double beta decay.

Yosuke Uehara

2002-06-26T23:59:59.000Z

358

Size-consistent Brueckner theory limited to double substitutions  

Science Journals Connector (OSTI)

A size-consistent set of equations for electron correlation which are limited to double substitutions, based on Brueckner orbitals, is discussed. Called BD theory, it is shown that at fifth order of perturbation theory, BD incorporates more terms than CCSD and QCISD. The simplicity of the equations leads to an elegant gradient theory. Preliminary applications are reported.

Nicholas C. Handy; John A. Pople; Martin Head-Gordon; Krishnan Raghavachari; Gary W. Trucks

1989-01-01T23:59:59.000Z

359

Neutrinoless double beta decay mediated by the neutrino magnetic moment  

E-Print Network [OSTI]

We present a new channel of the neutrinoless double beta decay. In this scenario neutrinos not only oscillate inside the nucleus but also interact with an external non-uniform magnetic field. We assume that the field rotates about the direction of motion of the neutrino and show, that for a certain speed of rotation the half-life of the $0\

Marek Gó?d?; Wies?aw A. Kami?ski

2014-11-07T23:59:59.000Z

360

Generator Coordinate Method framework for Double Beta Decay  

E-Print Network [OSTI]

We propose a consistent prescription for the derivation of the particle number and angular momentum projected QRPA (PQRPA) equation in the Generator Coordinate Method (GCM) framework for calculation of NME's of double-beta decay of axially deformed nuclei. We derive closed formulae for the calculation of excitation energies and wave functions of the intermediate nucleus.

Andrzej Bobyk; Wies?aw A. Kami?ski

2014-11-10T23:59:59.000Z

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


361

Double Gamow-Teller matrix elements in the germanium region  

Science Journals Connector (OSTI)

The matrix elements involved in the double-beta-decay process for the nuclei Ge76 and Se82 are calculated in terms of the variational wave functions resulting from realistic effective interactions operating in the unrestricted (2p1/2, 2p3/2, 1f5/2, 1g9/2)?,? configuration space.

S. K. Sharma, G. Mukherjee, and P. K. Rath

1990-03-01T23:59:59.000Z

362

Congenital Duodenal Obstruction and Double-Bubble Sign  

Science Journals Connector (OSTI)

Figure 1. A 1080-g girl was born at a gestational age of 29 weeks because of premature rupture of membranes. Enteral feeding was not tolerated. The infant's condition deteriorated, with nonbilious vomiting and a lack of stools. Abdominal radiography showed the double-bubble sign.

Correia-Pinto J.; Ribeiro A.

2014-09-11T23:59:59.000Z

363

Double Beta Decay and the Absolute Neutrino Mass Scale  

E-Print Network [OSTI]

After a short review of the current status of three-neutrino mixing, the implications for the values of neutrino masses are discussed. The bounds on the absolute scale of neutrino masses from Tritium beta-decay and cosmological data are reviewed. Finally, we discuss the implications of three-neutrino mixing for neutrinoless double-beta decay.

Carlo Giunti

2003-08-20T23:59:59.000Z

364

Neutrinoless double beta decay in the microscopic interacting boson model  

Science Journals Connector (OSTI)

The results of a calculation of the nuclear matrix elements for neutrinoless double beta decay in the closure approximation in several nuclei within the framework of the microscopic interacting boson model (IBM?2) are presented and compared with those calculated in the shell model (SM) and quasiparticle random phase approximation (QRPA).

F. Iachello

2009-01-01T23:59:59.000Z

365

New Advances in Neutrinoless Double Beta Decay Matrix Elements  

Science Journals Connector (OSTI)

We present the matrix elements necessary to evaluate the half?life of some neutrinoless double beta decay candidates in the framework of the microscopic interacting boson model (IBM). We compare our results with those from other models and extract some simple features of the calculations.

José Barea Muñoz

2010-01-01T23:59:59.000Z

366

Research Note Microsatellite Variation of Double-Crested Cormorant  

E-Print Network [OSTI]

Environmental Impact Statement on double- crested cormorant management allowing more flexibility in control-crested cormorants roosting in the lower Mis- sissippi Valley appear to have minimal negative impact on sport fisheries, they may have a significant impact on commercial aquaculture production in this region (Glahn

Green, Clay - Department of Biology, Texas State University

367

Neutrinoless double beta decay mediated by the neutrino magnetic moment  

E-Print Network [OSTI]

We present a new channel of the neutrinoless double beta decay. In this scenario neutrinos not only oscillate inside the nucleus but also interact with an external non-uniform magnetic field. We assume that the field rotates about the direction of motion of the neutrino and show, that for a certain speed of rotation the half-life of the $0\

Gó?d?, Marek

2014-01-01T23:59:59.000Z

368

Double Macdonald polynomials as the stable limit of Macdonald superpolynomials  

E-Print Network [OSTI]

Macdonald superpolynomials provide a remarkably rich generalization of the usual Macdonald polynomials. The starting point of this work is the observation of a previously unnoticed stability property of the Macdonald superpolynomials when the fermionic sector m is sufficiently large: their decomposition in the monomial basis is then independent of m. These stable superpolynomials are readily mapped into bisymmetric polynomials, an operation that spoils the ring structure but drastically simplifies the associated vector space. Our main result is a factorization of the (stable) bisymmetric Macdonald polynomials, called double Macdonald polynomials and indexed by pairs of partitions, into a product of Macdonald polynomials (albeit subject to non-trivial plethystic transformations). As an off-shoot, we note that, after multiplication by a t-Vandermonde determinant, this provides explicit formulas for a large class of Macdonald polynomials with prescribed symmetry. The factorization of the double Macdonald polynomials leads immediately to the generalization of basically every elementary properties of the Macdonald polynomials to the double case (norm, kernel, duality, positivity, etc). When lifted back to superspace, this validates various previously formulated conjectures in the stable regime. The q,t-Kostka coefficients associated to the double Macdonald polynomials are shown to be q,t-analogs of the dimensions of the irreducible representations of the hyperoctahedral group B_n. Moreover, a Nabla operator on the double Macdonald polynomials is defined and its action on a certain bisymmetric Schur function can be interpreted as the Frobenius series of a bigraded module of dimension (2n+1)^n, a formula again characteristic of the Coxeter group of type B_n. Finally, as a side result, we obtain a simple identity involving products of four Littlewood-Richardson coefficients.

O. Blondeau-Fournier; L. Lapointe; P. Mathieu

2013-04-08T23:59:59.000Z

369

Industrial mixing techniques for Hanford double-shell tanks  

SciTech Connect (OSTI)

Jet mixer pumps are currently the baseline technology for sludge mobilization and mixing in one-million gallon double-shell tanks at the Hanford and Savannah River Sites. Improvements to the baseline jet mixer pump technology are sought because jet mixer pumps have moving parts that may fail or require maintenance. Moreover, jet mixers are relatively expensive, they heat the waste, and, in some cases, may not mobilize enough of the sludge. This report documents a thorough literature search for commercially available applicable mixing technologies that could be used for double-shell tank sludge mobilization and mixing. Textbooks, research articles, conference proceedings, mixing experts, and the Thomas Register were consulted to identify applicable technologies. While there are many commercial methods that could be used to mobilize sludge or mix the contents of a one-million gallon tank, few will work given the geometrical constraints (e.g., the mixer must fit through a 1.07-m-diameter riser) or the tank waste properties (e.g., the sludge has such a high yield stress that it generally does not flow under its own weight). Pulsed fluid jets and submersible Flygt mixers have already been identified at Hanford and Savannah River Sites for double-shell tank mixing applications. While these mixing technologies may not be applicable for double-shell tanks that have a thick sludge layer at the bottom (since too many of these mixers would need to be installed to mobilize most of the sludge), they may have applications in tanks that do not have a settled solids layer. Retrieval projects at Hanford and other U.S. Department of Energy sites are currently evaluating the effectiveness of these mixing techniques for tank waste applications. The literature search did not reveal any previously unknown technologies that should be considered for sludge mobilization and mixing in one-million gallon double-shell tanks.

Daymo, E.A.

1997-09-01T23:59:59.000Z

370

Double ionization of helium by bare ions: Theoretical study of the fully differential cross sections  

SciTech Connect (OSTI)

This work presents a theoretical study of fully differential cross sections (FDCSs) for the double ionization of an He target by ion impact within a distorted wave model. The initial atomic system is described by two approximated wave functions of different accuracy proposed by Bonham and Kohl. For the final channel several models are considered based upon improvements and simplifications of the well-known three-body Coulomb (3C) model. The influence of the receding projectile on the resulting fragments is also studied by implementing a model with effective charges that depend on the momenta of the four particles. The FDCSs resulting for different electron energy sharing are discussed. The sensitivity of the FDCSs to the projectile charge sign and magnitude is explored over the energy range 700 keV/amu through 6 MeV/amu.

Lopez, S. D.; Garibotti, C. R. [Consejo Nacional de Investigaciones Cientificas y Tecnicas and Centro Atomico Bariloche, Avenida Bustillo 9400, 8400 San Carlos de Bariloche (Argentina); Otranto, S. [Instituto de Fisica del Sur and Departamento de Fisica, Universidad Nacional del Sur, 8000 Bahia Blanca (Argentina)

2011-06-15T23:59:59.000Z

371

E-Print Network 3.0 - amplitude double layers Sample Search Results  

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

Abstract --This paper deals a double layer and a single layer Flux-Switching Permanent Magnet (FSPM) motors for a fault Summary: Abstract --This paper deals a double layer and a...

372

The effect of weak magnetism and induced pseudoscalar coupling in neutrinoless double-beta decay  

Science Journals Connector (OSTI)

In calculating the amplitude of the majorana neutrino-mass mechanism of neutrinoless double-beta decay (0???-decay), several approximations of the...pn-rqrpa) for all nuclei undergoing double-beta decay in the re...

G. Pantis; F. Šimkovic

2000-07-01T23:59:59.000Z

373

Growth Conditions of Double-Walled Carbon Nanotubes in Arc Discharge  

Science Journals Connector (OSTI)

Growth Conditions of Double-Walled Carbon Nanotubes in Arc Discharge ... Preparation conditions for large-scale synthesis of double-walled carbon nanotubes (DWCNTs) by using electric arc discharge were examined. ...

Yahachi Saito; Takanori Nakahira; Sashiro Uemura

2003-01-04T23:59:59.000Z

374

Market Power in Emissions Trading Markets Ruled by a Multiple Unit Double Auction: Further Experimental Evidence  

Science Journals Connector (OSTI)

We discuss selected methodological problems of previous Double Auction (DA) experiments and test the hypothesis that a Multiple Unit Double Auction (MUDA) is able to prevent market power in an emissions trading m...

Bodo Sturm

2008-08-01T23:59:59.000Z

375

Resistance effect of electric double layer on liquid flow in microchannel  

Science Journals Connector (OSTI)

Poisson-Boltzmann equation for EDL (electric double layer) and Navier-Stokes equation for liquid flows were numerically solved to investigate resistance effect of electric double layer on liquid flow in microchan...

Lei Gong ??; Jian-kang Wu Doctor ???

2006-10-01T23:59:59.000Z

376

SciTech Connect: Search for Neutrinoless Double-Beta Decay in...  

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

Search for Neutrinoless Double-Beta Decay in 136Xe with EXO-200 Citation Details In-Document Search Title: Search for Neutrinoless Double-Beta Decay in 136Xe with EXO-200...

377

Neutrinoless double-$?$ decay of ${}^{82}$Se in the shell model: beyond closure approximation  

E-Print Network [OSTI]

We recently proposed a new method to calculate the standard nuclear matrix elements for neutrinoless double-$\\beta$ decay ($0\

R. A. Sen'kov; M. Horoi; B. A. Brown

2014-02-21T23:59:59.000Z

378

A measurement of the 2 neutrino double beta decay rate of 130Te in the CUORICINO experiment  

E-Print Network [OSTI]

1.2.2 Neutrinoless double beta decay . . . . . 1.2.3 NuclearEvidence for Neutrinoless Double Beta Decay, Mod. Phys.on ’Evidence for Neutrinoless Double Beta Decay’, Mod. Phys.

Kogler, Laura Katherine

2011-01-01T23:59:59.000Z

379

A measurement of the 2 neutrino double beta decay rate of Te-130 in the CUORICINO experiment  

E-Print Network [OSTI]

1.2.2 Neutrinoless double beta decay . . . . . 1.2.3 NuclearEvidence for Neutrinoless Double Beta Decay, Mod. Phys.on ’Evidence for Neutrinoless Double Beta Decay’, Mod. Phys.

Kogler, Laura

2012-01-01T23:59:59.000Z

380

Surface plasmon dispersion engineering via double-metallic AU/AG layers for nitride light-emitting diodes  

DOE Patents [OSTI]

A double-metallic deposition process is used whereby adjacent layers of different metals are deposited on a substrate. The surface plasmon frequency of a base layer of a first metal is tuned by the surface plasmon frequency of a second layer of a second metal formed thereon. The amount of tuning is dependent upon the thickness of the metallic layers, and thus tuning can be achieved by varying the thicknesses of one or both of the metallic layers. In a preferred embodiment directed to enhanced LED technology in the green spectrum regime, a double-metallic Au/Ag layer comprising a base layer of gold (Au) followed by a second layer of silver (Ag) formed thereon is deposited on top of InGaN/GaN quantum wells (QWs) on a sapphire/GaN substrate.

Tansu, Nelson; Zhao, Hongping; Zhang, Jing; Liu, Guangyu

2014-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Design of Double Salient Interior Permanent Magnet Machine Based on Mutually Coupled  

E-Print Network [OSTI]

Design of Double Salient Interior Permanent Magnet Machine Based on Mutually Coupled Reluctance--This paper presents a novel structure of double salient interior permanent magnet machine (DSIPM machine-- double salient, d-axis and q-axis inductances, cogging torque, permanent magnets, flux

Paris-Sud XI, Université de

382

The neutrinoless double-beta decay: A test for new physics  

Science Journals Connector (OSTI)

The neutrinoless double-beta decay is not allowed in the Standard Model ... and must have a mass to allow the neutrinoless double-beta decay. Apart of one claim that the neutrinoless double-beta decay in 76Ge is ...

A. Faessler

2007-03-01T23:59:59.000Z

383

The neutrinoless double-beta decay: A test for new physics  

Science Journals Connector (OSTI)

The neutrinoless double-beta decay is not allowed in the Standard Model ... and must have a mass to allow the neutrinoless double-beta decay. Apart of one claim that the neutrinoless double-beta decay in 76Ge is ...

A. Faessler

2007-01-01T23:59:59.000Z

384

Electron spectroscopy study of single and double multiphoton ionization of strontium by visible picosecond laser light  

E-Print Network [OSTI]

795 Electron spectroscopy study of single and double multiphoton ionization of strontium by visible'ionisation multiphotonique simple et double du strontium par des impulsions picosecondes de 1011 à quelque 1012 W cm-2 initial un état excité de l'ion. Abstract. 2014 Multiphoton single and double ionization of strontium

Paris-Sud XI, Université de

385

Uncertainties in Nuclear Matrix Elements for Neutrinoless Double-Beta Decay  

E-Print Network [OSTI]

Uncertainties in Nuclear Matrix Elements for Neutrinoless Double-Beta Decay Jonathan Engel Abstract. I briefly review calculations of the matrix elements governing neutrinoless double-beta decay, in broad terms, strategies for reducing systematic error. 1. Introduction Neutrinoless double-beta (0

Engel, Jonathan

386

Alpha Backgrounds and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe Detectors  

E-Print Network [OSTI]

Alpha Backgrounds and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe Detectors Robert A. Johnson Chair of the Supervisory Committee: Professor John F. Wilkerson Physics The observation of neutrinoless double-beta decay

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

387

Double beta decay, Majorana neutrinos, and neutrino mass Frank T. Avignone III*  

E-Print Network [OSTI]

The theoretical and experimental issues relevant to neutrinoless double beta decay are reviewed. The impact more sensitive, even the nonobservation of neutrinoless double beta decay will be useful Acknowledgments 513 References 514 I. INTRODUCTION Neutrinoless double beta decay 0 is a very slow lepton

Engel, Jonathan

388

WATER-LITHIUM BROMIDE DOUBLE-EFFECT ABSORPTION COOLING ANALYSIS  

Office of Scientific and Technical Information (OSTI)

WATER-LITHIUM BROMIDE DOUBLE-EFFECT WATER-LITHIUM BROMIDE DOUBLE-EFFECT ABSORPTION COOLING ANALYSIS Gary C . V l i e t , Michael B . Lawson, and Rudolf0 A . Lithgow Center f o r Energy Studies The University of Texas a t Austin December 1980 Final Report f o r Contract: DE AC03-79SF10540 (Mu1 tiple-Effect Absorption Cycle Solar Cooling) with the U.S. Department of Energy 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

389

Double Oak, Texas: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Double Oak, Texas: Energy Resources Double Oak, Texas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.065122°, -97.1105669° 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":33.065122,"lon":-97.1105669,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

390

NERSC's Franklin Supercomputer Upgraded to Double Its Scientific Capability  

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

NERSC's Franklin NERSC's Franklin Supercomputer Upgraded to Double Its Scientific Capability NERSC's Franklin Supercomputer Upgraded to Double Its Scientific Capability July 20, 2009 OCEAN EDDIES: This image comes from a computer simulation modeling eddies in the ocean. An interesting feature is the abundance of eddies away from the equator, which is shown in the center of the image at y=0. This research collaboration led by Paola Cessi of the Scripps Institute of Oceanography performed over 15,000 years worth of deep ocean circulation simulations with 1.6 million processor core hours on the upgraded Franklin system. The Department of Energy's (DOE) National Energy Research Scientific Computing (NERSC) Center has officially accepted a series of upgrades to its Cray XT4 supercomputer, providing the facility's 3,000 users with twice

391

Design of double passive modulated mode-locked lasers  

SciTech Connect (OSTI)

A set of equations is obtained that allow the determination of the optimum values for the laser parameters in order to obtain perfect mode-locking by double passive modulation. The double modulation consists of a fast saturable absorber and a passive loss proportional to the mean intensity in the cavity provided by a passively driven electro-optic modulator. The stochastic nature of the emission of conventional passive modulated systems is eliminated if the correct values of the modulation parameters are chosen as predicted by the equations presented here. The predictions given by the equations were compared with previous numerical computations in order to check the validity of certain approximations used. Experimental results obtained confirm the predictions given by said equations.

Martinez, O.E.

1983-02-01T23:59:59.000Z

392

Double Macdonald polynomials as the stable limit of Macdonald superpolynomials  

E-Print Network [OSTI]

Macdonald superpolynomials provide a remarkably rich generalization of the usual Macdonald polynomials. The starting point of this work is the observation of a previously unnoticed stability property of the Macdonald superpolynomials when the fermionic sector m is sufficiently large: their decomposition in the monomial basis is then independent of m. These stable superpolynomials are readily mapped into bisymmetric polynomials, an operation that spoils the ring structure but drastically simplifies the associated vector space. Our main result is a factorization of the (stable) bisymmetric Macdonald polynomials, called double Macdonald polynomials and indexed by pairs of partitions, into a product of Macdonald polynomials (albeit subject to non-trivial plethystic transformations). As an off-shoot, we note that, after multiplication by a t-Vandermonde determinant, this provides explicit formulas for a large class of Macdonald polynomials with prescribed symmetry. The factorization of the double Macdonald polynom...

Blondeau-Fournier, O; Mathieu, P

2013-01-01T23:59:59.000Z

393

Cascade of torus doubling bifurcations in a detuned laser  

SciTech Connect (OSTI)

By using a simplified system of Maxwell-Bloch equations (with the adiabatically excluded polarisation of the medium), we studied the processes proceeding in the cross section of a light wave propagating in a wide-aperture laser emitting at the frequency detuned from the transition-line centre. It is shown that in the model under study the passage to the chaotic regime during a change in the wave propagation velocity across the aperture occurs via the doubling bifurcations of an ergodic two-dimensional torus. The spectrum of Lyapunov exponents is found and it is established that at bifurcation points a structurally unstable three-dimensional torus is produced, which gives rise to a stable doubled ergodic torus. (nonlinear optical phenomena)

Krents, A A [S.P. Korolev Samara State Aerospace University, Samara (Russian Federation); Molevich, N E [Samara Branch of the P.N. Lebedev Physical Institute, Russian Academy of Sciences, Samara (Russian Federation)

2009-08-31T23:59:59.000Z

394

Double Beta Decay, Majorana Neutrinos, and Neutrino Mass  

E-Print Network [OSTI]

The theoretical and experimental issues relevant to neutrinoless double-beta decay are reviewed. The impact that a direct observation of this exotic process would have on elementary particle physics, nuclear physics, astrophysics and cosmology is profound. Now that neutrinos are known to have mass and experiments are becoming more sensitive, even the non-observation of neutrinoless double-beta decay will be useful. If the process is actually observed, we will immediately learn much about the neutrino. The status and discovery potential of proposed experiments are reviewed in this context, with significant emphasis on proposals favored by recent panel reviews. The importance of and challenges in the calculation of nuclear matrix elements that govern the decay are considered in detail. The increasing sensitivity of experiments and improvements in nuclear theory make the future exciting for this field at the interface of nuclear and particle physics.

Frank T. Avignone III; Steven R. Elliott; Jonathan Engel

2007-08-07T23:59:59.000Z

395

Unparticle effects on neutrinoless and neutrino double beta decay  

Science Journals Connector (OSTI)

The neutrinoless and neutrinos double beta decays are investigated in an effective theory where a scalar unparticle is introduced. We calculate the contributions of a virtual unparticle to the rates of 0?2? and 2?2? decays. The unparticle effect is negligibly small when the scaling dimension d of unparticle lies in the region 1.1–1.9. But it can be relatively large when d approaches to 1 or 2. We also study the neutrinoless double beta decay with a real unparticle in the final state which cannot be distinguished from 2?2? decay in experiment. We consider the unparticle effect on extracting the neutrino mass parameter m?? from experimental data and find that it can be relatively large when d takes certain values.

Chun-Xu Zhang; Ming-Qiu Huang; Ming Zhong

2008-11-07T23:59:59.000Z

396

Double-clad nuclear-fuel safety rod  

DOE Patents [OSTI]

A device for shutting down a nuclear reactor during an undercooling or overpower event, whether or not the reactor's scram system operates properly. This is accomplished by double-clad fuel safety rods positioned at various locations throughout the reactor core, wherein melting of a secondary internal cladding of the rod allows the fuel column therein to shift from the reactor core to place the reactor in a subcritical condition.

McCarthy, W.H.; Atcheson, D.B.

1981-12-30T23:59:59.000Z

397

Damage and collapse of double hull tankers in groundings  

SciTech Connect (OSTI)

This paper will discuss and analyze the mechanics of ships in groundings on rock. A damage estimate model in grounding of ships is proposed. The accuracy and applicability of the model are verified by a comparison of experimental results. The progressive collapse analysis of damaged hull sections, under vertical bending moments by use of the ALPS/ISUM computer code, is described. The procedure is applied to grounding simulation of a double hull tanker with transverseless system.

Paik, J.K.; Lee, T.K. [Pusan National Univ. (Korea, Republic of). Dept. of Naval Architecture and Ocean Engineering

1995-12-31T23:59:59.000Z

398

Double sided circuit board and a method for its manufacture  

DOE Patents [OSTI]

Conductance between the sides of a large double sided printed circuit board is provided using a method which eliminates the need for chemical immersion or photographic exposure of the entire large board. A plurality of through-holes are drilled or punched in a substratum according to the desired pattern, conductive laminae are made to adhere to both sides of the substratum covering the holes and the laminae are pressed together and permanently joined within the holes, providing conductive paths. 4 figs.

Lindenmeyer, C.W.

1988-04-14T23:59:59.000Z

399

Correlations of spin states for icosahedral double group  

E-Print Network [OSTI]

The irreducible bases of the group space of the icosahedral double groups {\\bf I'} and {\\bf I$_{h}'$} are calculated explicitly. Applying those bases on the spin states $|j,\\mu>$, we present a simple formula to combine the spin states into the symmetrical adapted bases, belonging to a given row of a given irreducible representations of {\\bf I'} and {\\bf I$_{h}'$}.

Shi-hai Dong; Xi-wen Hou; Zhong-qi Ma

1998-11-30T23:59:59.000Z

400

Charged Majoron Emission in Neutrinoless Double Beta Decay  

E-Print Network [OSTI]

We examine in detail the predictions of the charged majoron model, introduced recently by Burgess and Cline, for 0+ --> 0+ double beta decay transitions. The relevant nuclear matrix elements are evaluated, within the quasiparticle random phase approximation, for 76Ge, 82Se, 100Mo, 128Te and 150Nd nuclei. The calculated transition rates turn out to be much smaller than the experimental upper limits on possible majoron emission, except in a small region of the model's parameter space.

C. Barbero; J. M. Cline; F. Krmpotic; D. Tadic

1995-11-30T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Nuclear Structure Aspects of Neutrinoless Double Beta Decay  

E-Print Network [OSTI]

We decompose the neutrinoless double-beta decay matrix elements into sums of products over the intermediate nucleus with two less nucleons. We find that the sum is dominated by the J^pi=0^+ ground state of this intermediate nucleus for both the light and heavy neutrino decay processes. This provides a new theoretical tool for comparing and improving nuclear structure models. It also provides the connection to two-nucleon transfer experiments.

B. A. Brown; M. Horoi; R. A. Sen'kov

2014-09-25T23:59:59.000Z

402

Neutrinoless double beta decay and nuclear matrix elements  

Science Journals Connector (OSTI)

The fundamental importance of searching for neutrinoless double?beta decay (0????decay) is widely recognized. Observation of the decay would tell us that the total lepton number is not conserved and that consequently neutrinos are massive Majorana fermions. The 0????decay is discussed in context of neutrino oscillation data. The perspectives of the experimental 0????decay searches are analyzed. The importance of reliable determination of the 0????decay nuclear matrix elements is pointed out.

2011-01-01T23:59:59.000Z

403

Nuclear Structure Aspects of Neutrinoless Double Beta Decay  

E-Print Network [OSTI]

We decompose the neutrinoless double-beta decay matrix elements into sums of products over the intermediate nucleus with two less nucleons. We find that the sum is dominated by the J^pi=0^+ ground state of this intermediate nucleus for both the light and heavy neutrino decay processes. This provides a new theoretical tool for comparing and improving nuclear structure models. It also provides the connection to two-nucleon transfer experiments.

Brown, B A; Sen'kov, R A

2014-01-01T23:59:59.000Z

404

THE PROTOTYPE ALUMINUM - CARBON SINGLE, DOUBLE, AND TRIPLE BONDS: Al - CH3, Al = CH2, AND Al. = CH  

E-Print Network [OSTI]

three prototype Table II. aluminum-carbon bonds and theirPhysics THE PROTOTYPE ALUMINUM - CARBON SINGLE, DOUBLE, ANDLBL-l0871 The Prototype Aluminum - Carbon Single, Double.

Fox, Douglas J.

2011-01-01T23:59:59.000Z

405

A DEEPLY ECLIPSING DETACHED DOUBLE HELIUM WHITE DWARF BINARY  

SciTech Connect (OSTI)

Using Liverpool Telescope+RISE photometry we identify the 2.78 hr period binary star CSS 41177 as a detached eclipsing double white dwarf binary with a 21,100 K primary star and a 10,500 K secondary star. This makes CSS 41177 only the second known eclipsing double white dwarf binary after NLTT 11748. The 2 minute long primary eclipse is 40% deep and the secondary eclipse 10% deep. From Gemini+GMOS spectroscopy, we measure the radial velocities of both components of the binary from the H{alpha} absorption line cores. These measurements, combined with the light curve information, yield white dwarf masses of M{sub 1} = 0.283 {+-} 0.064 M{sub sun} and M{sub 2} = 0.274 {+-} 0.034 M{sub sun}, making them both helium core white dwarfs. As an eclipsing, double-lined spectroscopic binary, CSS 41177 is ideally suited to measuring precise, model-independent masses and radii. The two white dwarfs will merge in roughly 1.1 Gyr to form a single sdB star.

Parsons, S. G.; Marsh, T. R.; Gaensicke, B. T. [Department of Physics, University of Warwick, Coventry, CV4 7AL (United Kingdom); Drake, A. J. [California Institute of Technology, 1200 E. California Blvd, CA 91225 (United States); Koester, D. [Institut fuer Theoretische Physik und Astrophysik, Universitaet Kiel (Germany)

2011-07-10T23:59:59.000Z

406

Methotrexate intercalated ZnAl-layered double hydroxide  

SciTech Connect (OSTI)

The anticancerous drug methotrexate (MTX) has been intercalated into an ZnAl-layered double hydroxide (LDH) using an anion exchange technique to produce LDH-MTX hybrids having particle sizes in the range of 100-300 nm. X-ray diffraction studies revealed increases in the basal spacings of ZnAl-LDH-MTX hybrid on MTX intercalation. This was corroborated by the transmission electron micrographs, which showed an increase in average interlayer spacing from 8.9 A in pristine LDH to 21.3 A in LDH-MTX hybrid. Thermogravimetric analyses showed an increase in the decomposition temperature for the MTX molecule in the LDH-MTX hybrid indicating enhanced thermal stability of the drug molecule in the LDH nanovehicle. The cumulative release profile of MTX from ZnAl-LDH-MTX hybrids in phosphate buffer saline (PBS) at pH 7.4 was successfully sustained for 48 h following Rigter-Peppas model release kinetics via diffusion. - Graphical abstract: ZnAl-layered double hydroxide intercalated with methotrexate ({approx}34% loading) promises the possibility of use of ZnAl-LDH material as drug carrier and in controlled delivery. Highlights: > ZnAl-layered double hydroxide methotrexate nanohybrid has been synthesized. > XRD and TEM studies on nanohybrid revealed successful intercalation of methotrexate. > TG and CHN analyses showed {approx}34 wt% of methotrexate loading into the nanohybrid. > Possibility of use of ZnAl-LDH material as drug carrier and in delivery.

Chakraborty, Manjusha; Dasgupta, Sudip; Soundrapandian, Chidambaram [Central Glass and Ceramic Research Institute, CSIR, 196 Raja S.C. Mullick Road, Kolkata 700032 (India); Chakraborty, Jui, E-mail: jui@cgcri.res.in [Central Glass and Ceramic Research Institute, CSIR, 196 Raja S.C. Mullick Road, Kolkata 700032 (India); Ghosh, Swapankumar, E-mail: swapankumar.ghosh2@mail.dcu.ie [National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum 695019 (India); Mitra, Manoj K. [Department of Metallurgical and Materials Engineering, Jadavpur University, Kolkata 700032 (India); Basu, Debabrata [Central Glass and Ceramic Research Institute, CSIR, 196 Raja S.C. Mullick Road, Kolkata 700032 (India)

2011-09-15T23:59:59.000Z

407

Double Hot Springs Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Double Hot Springs Geothermal Area Double Hot Springs Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Double Hot Springs Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","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":41.048,"lon":-119.0283,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

408

HANFORD DOUBLE SHELL TANK THERMAL AND SEISMIC PROJECT SENSITIVITY OF DOUBLE SHELL DYNAMIC RESPONSE TO THE WASTE ELASTIC PROPERTIES  

SciTech Connect (OSTI)

The purpose of this study was to determine the sensitivity of the dynamic response of the Hanford double-shell tanks (DSTs) to the assumptions regarding the constitutive properties of the contained waste. In all cases, the waste was modeled as a uniform linearly elastic material. The focus of the study was on the changes in the modal response of the tank and waste system as the extensional modulus (elastic modulus in tension and compression) and shear modulus of the waste were varied through six orders of magnitude. Time-history analyses were also performed for selected cases and peak horizontal reaction forces and axial stresses at the bottom of the primary tank were evaluated. Because the analysis focused on the differences in the responses between solid-filled and liquid-filled tanks, it is a comparative analysis rather than an analysis of record for a specific tank or set of tanks. The shear modulus was varied between 4 x 10{sup 3} Pa and 4.135 x 10{sup 9} Pa. The lowest value of shear modulus was sufficient to simulate the modal response of a liquid-containing tank, while the higher values are several orders of magnitude greater than the upper limit of expected properties for tank contents. The range of elastic properties used was sufficient to show liquid-like response at the lower values, followed by a transition range of semi-solid-like response to a clearly identifiable solid-like response. It was assumed that the mechanical properties of the tank contents were spatially uniform. Because sludge-like materials are expected only to exist in the lower part of the tanks, this assumption leads to an exaggeration of the effects of sludge-like materials in the tanks. The results of the study show that up to a waste shear modulus of at least 40,000 Pa, the modal properties of the tank and waste system are very nearly the same as for the equivalent liquid-containing tank. This suggests that the differences in critical tank responses between liquid-containing tanks and tanks containing sludge-like materials having a shear modulus not exceeding 40,000 Pa are unlikely to be greater than those due to the uncertainties involved in the definition of the design ground motion or in the properties of the tank-waste system. This is the fundamental conclusion of the study. The study also shows that increasing the waste extensional modulus and shear modulus does not lead to increased mass participation at the impulsive frequency of the liquid-containing system. Instead, increasing the waste stiffness eventually leads to fundamental changes in the modal properties including an increase in the fundamental system frequency.

MACKEY TC; ABATT FG; JOHNSON KI

2009-01-16T23:59:59.000Z

409

cooking or you desire to open your own restaurant or catering business, a certified culinary training program would be a perfect start in reaching those dreams. This field offers so many different positions that almost  

E-Print Network [OSTI]

methods, portion control, and food service sanitation that enables them to become line or dinner cooks. Instruction includes: wide range of career opportunities Food Service Management Associate of Applied Science The Food Service Management Program is designed to continue principles taught in the Culinary Arts

Vonessen, Nikolaus

410

Synthesis, structure and magnetic properties of La{sub 3}Co{sub 2}SbO{sub 9}: A double perovskite with competing antiferromagnetic and ferromagnetic interactions  

SciTech Connect (OSTI)

The synthesis, structural characterization, and magnetic properties of La{sub 3}Co{sub 2}SbO{sub 9} double perovskite are reported. The crystal structure has been refined by X-ray and neutron powder diffraction data in the monoclinic space group P2{sub 1}/n. Co{sup 2+} and Sb{sup 5+} have the maximum order allowed for the La{sub 3}Co{sub 2}SbO{sub 9} stoichiometry. Rietveld refinements of powder neutron diffraction data show that at room temperature the cell parameters are a=5.6274(2) A, b=5.6842(2) A, c=7.9748(2) A and {beta}=89.999(3) Degree-Sign . Magnetization measurements indicate the presence of ferromagnetic correlations with T{sub C}=55 K attributed to the exchange interactions for non-linear Co{sup 2+}-O-Sb{sup 5+}-O-Co{sup 2+} paths. The effective magnetic moment obtained experimentally is {mu}{sub exp}=4.38 {mu}{sub B} (per mol Co{sup 2+}), between the theoretical one for spin only (3.87 {mu}{sub B}) and spin-orbit value (6.63 {mu}{sub B}), indicating partially unquenched contribution. The low magnetization value at high magnetic field and low temperature (1 {mu}{sub B}/f.u., 5 T and 5 K) and the difference between ZFC and FC magnetization curves (at 5 kOe) indicate that the ferromagnetism do not reach a long range order and that the material has an important magnetic frustration. - Graphical abstract: Co-O-Co (Yellow octahedra only) rich zones (antiferromagnetic) are in contact with Co-O-Sb-O-Co (Red and yellow octahedra) rich zones (Ferromagnetic) to give the peculiar magnetic properties, as a consequence, a complex hysteresis loop can be observed composed by a main and irreversible curve in all the measured range, superimposed with a ferromagnetic component at low fields. Highlights: Black-Right-Pointing-Pointer La{sub 3}Co{sub 2}SbO{sub 9} has small Goldschmidt Tolerance Factor (t) due to the small size of La{sup 3+}. Black-Right-Pointing-Pointer Small t determines an angle for the path Co{sup 2+}-O-Sb{sup 5+}-O-Co{sup 2+} of 153 Degree-Sign . Black-Right-Pointing-Pointer Ferromagnetism is attributed to exchange interactions for Co{sup 2+}-O-Sb{sup 5+}-O-Co{sup 2+} paths. Black-Right-Pointing-Pointer Ferromagnetic nanoclusters are embedded in an antiferromagnetic matrix.

Franco, D.G.; Fuertes, V.C.; Blanco, M.C. [INFIQC (CONICET), Departamento de Fisicoquimica, Facultad de Ciencias Quimicas, Universidad Nacional de Cordoba, Ciudad Universitaria, X5000HUA Cordoba (Argentina)] [INFIQC (CONICET), Departamento de Fisicoquimica, Facultad de Ciencias Quimicas, Universidad Nacional de Cordoba, Ciudad Universitaria, X5000HUA Cordoba (Argentina); Fernandez-Diaz, M.T. [Institute Laue-Langevin (ILL) 156X, F-38042 Grenoble Cedex 9 (France)] [Institute Laue-Langevin (ILL) 156X, F-38042 Grenoble Cedex 9 (France); Sanchez, R.D., E-mail: rodo@cab.cnea.gov.ar [Centro Atomico Bariloche, CNEA and Instituto Balseiro, Universidad Nacional de Cuyo, Av. Bustillo 9500, 8400 Rio Negro (Argentina); Carbonio, R.E., E-mail: carbonio@fcq.unc.edu.ar [INFIQC (CONICET), Departamento de Fisicoquimica, Facultad de Ciencias Quimicas, Universidad Nacional de Cordoba, Ciudad Universitaria, X5000HUA Cordoba (Argentina)

2012-10-15T23:59:59.000Z

411

Radiopurity assessment of the tracking readout for the NEXT double beta decay experiment  

E-Print Network [OSTI]

The 'Neutrino Experiment with a Xenon Time-Projection Chamber' (NEXT) is intended to investigate the neutrinoless double beta decay of 136Xe, which requires a severe suppression of potential backgrounds; therefore, an extensive screening and selection process is underway to control the radiopurity levels of the materials to be used in the experimental set-up of NEXT. The detector design combines the measurement of the topological signature of the event for background discrimination with the energy resolution optimization. Separate energy and tracking readout planes are based on different sensors: photomultiplier tubes for calorimetry and silicon multi-pixel photon counters for tracking. The design of a radiopure tracking plane, in direct contact with the gas detector medium, was a challenge since the needed components have typically activities too large for experiments requiring ultra-low background conditions. Here, the radiopurity assessment of tracking readout components based on gamma-ray spectroscopy usi...

Álvarez, V; Barrado, A I; Bettini, A; Borges, F I G M; Camargo, M; Cárcel, S; Cebrián, S; Cervera, A; Conde, C A N; Conde, E; Dafni, T; Díaz, J; Esteve, R; Fernandes, L M P; Fernández, M; Ferrario, P; Ferreira, A L; Freitas, E D C; Gehman, V M; Goldschmidt, A; Gómez, H; Gómez-Cadenas, J J; González-Díaz, D; Gutiérrez, R M; Hauptman, J; Morata, J A Hernando; Herrera, D C; Iguaz, F J; Irastorza, I G; Labarga, L; Laing, A; Liubarsky, I; Lorca, D; Losada, M; Luzón, G; Marí, A; Martín-Albo, J; Martínez, A; Martínez-Lema, G; Miller, T; Monrabal, F; Monserrate, M; Monteiro, C M B; Mora, F J; Moutinho, L M; Vidal, J Muñoz; Nebot-Guinot, M; Nygren, D; Oliveira, C A B; de Solórzano, A Ortiz; Pérez, J; Aparicio, J L Pérez; Renner, J; Ripoll, L; Rodríguez, A; Rodríguez, J; Santos, F P; Santos, J M F dos; Segui, L; Serra, L; Shuman, D; Simón, A; Sofka, C; Sorel, M; Toledo, J F; Torrent, J; Tsamalaidze, Z; Veloso, J F C A; Villar, J A; Webb, R C; White, J T; Yahlali, N

2014-01-01T23:59:59.000Z

412

Proposed experiment of which-way detection by longitudinal momentum transfer in Young's double slit experiment  

E-Print Network [OSTI]

The momentum of a photon may reveal the answer to the "which way" problem of Young's double slit experiments. A photon passing through the boundary between two media, in which a photon travels at different velocities, undergoes a momentum change according to the law of conservation of momentum. The momentum of the photon is transferred locally to the medium, and the boundary between the media receives stress, which determines the photon trajectory. An experiment is performed using a crystal plate that can transform the stress to electric charge. We are able to detect the electric charge after the detection of the photon on the screen, and control the sensitivity of photon detection. By means of this proposed experiment it is determined whether or not an attempt to detect the "which way" of photon travel destroys the interference patterns.

Masanori Sato

2004-06-01T23:59:59.000Z

413

Impact of the Doppler Broadened Double Differential Cross Section on Observed Resonance Profiles  

Science Journals Connector (OSTI)

Abstract This paper is sequential to studies discussing with the impact of the Doppler broadening of the Double Differential Cross Section (DDXS) on nuclear reactor core calculations. In this study, the influence of the resonance dependent DDXS on the observed resonance line shape in time of flight capture experiments is investigated. The importance of the correct formalism is illustrated by comparing Monte Carlo simulations with and without a resonance dependent DDXS model to measured data of a saturated 238U resonance. The resonance dependent DDXS is taken into account via its stochastic implementation known as Doppler Broadening Rejection Correction (DBRC). In addition, the increased impact of the resonance dependent DDXS model for higher temperatures is shown via a simulation of capture yields for 238U and 183W at different sample temperatures.

R. Dagan; B. Becker; Y. Danon; F. Gunsing; S. Kopecky; C. Lampoudis; O. Litaize; M. Moxon; P. Schillebeeckx

2014-01-01T23:59:59.000Z

414

Adiabatic transfer of light in a double cavity and the optical Landau-Zener problem  

SciTech Connect (OSTI)

We analyze the evolution of an electromagnetic field inside a double cavity when the difference in length between the two cavities is changed, e.g., by translating the common mirror. We find that this allows photons to be moved deterministically from one cavity to the other. We are able to obtain the conditions for adiabatic transfer by first mapping the Maxwell wave equation for the electric field onto a Schroedinger-like wave equation and then using the Landau-Zener result for the transition probability at an avoided crossing. Our analysis reveals that this mapping only rigorously holds when the two cavities are weakly coupled (i.e., in the regime of a highly reflective common mirror) and that, generally speaking, care is required when attempting a Hamiltonian description of cavity electrodynamics with time-dependent boundary conditions.

Miladinovic, N.; Hasan, F.; Linnington, I. E.; O'Dell, D. H. J. [Department of Physics and Astronomy, McMaster University, 1280 Main St. W., Hamilton, Ontario, L8S 4M1 (Canada); Chisholm, N. [School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138 (United States); Hinds, E. A. [Centre for Cold Matter, Imperial College, Prince Consort Road, London SW7 2AZ (United Kingdom)

2011-10-15T23:59:59.000Z

415

Average and recommended half-life values for two neutrino double beta decay  

E-Print Network [OSTI]

All existing positive results on two neutrino double beta decay in different nuclei were analyzed. Using the procedure recommended by the Particle Data Group, weighted average values for half-lives of $^{48}$Ca, $^{76}$Ge, $^{82}$Se, $^{96}$Zr, $^{100}$Mo, $^{100}$Mo - $^{100}$Ru ($0^+_1$), $^{116}$Cd, $^{130}$Te, $^{136}$Xe, $^{150}$Nd, $^{150}$Nd - $^{150}$Sm ($0^+_1$) and $^{238}$U were obtained. Existing geochemical data were analyzed and recommended values for half-lives of $^{128}$Te, and $^{130}$Ba are proposed. Given the measured half-life values, nuclear matrix elements were calculated using latest (more reliable and precise) values for phase space factor. Finally, previous results (PRC 81 (2010) 035501) were up-dated and results for $^{136}$Xe were added.

A. S. Barabash

2015-01-21T23:59:59.000Z

416

Addendum to: QRPA uncertainties and their correlations in the analysis of neutrinoless double beta decay  

E-Print Network [OSTI]

In a previous article [Phys. Rev. D 79, 053001 (2009)] we estimated the correlated uncertainties associated to the nuclear matrix elements (NME) of neutrinoless double beta decay (0 nu beta beta) within the quasiparticle random phase approximation (QRPA). Such estimates encompass recent independent calculations of NMEs, and can thus still provide a fair representation of the nuclear model uncertainties. In this context, we compare the claim of 0 nu beta beta decay in Ge-76 with recent negative results in Xe-136 and in other nuclei, and we infer the lifetime ranges allowed or excluded at 90% C.L. We also highlight some issues that should be addressed in order to properly compare and combine results coming from different 0 nu beta beta decay candidate nuclei.

Amand Faessler; G. L. Fogli; E. Lisi; V. Rodin; A. M. Rotunno; F. Simkovic

2013-01-07T23:59:59.000Z

417

Operation of the CAPRICE electron cyclotron resonance ion source applying frequency tuning and double frequency heating  

SciTech Connect (OSTI)

The properties of the electromagnetic waves heating the electrons of the ECR ion sources (ECRIS) plasma affect the features of the extracted ion beams such as the emittance, the shape, and the current, in particular for higher charge states. The electron heating methods such as the frequency tuning effect and the double frequency heating are widely used for enhancing the performances of ECRIS or even for the routine operation during the beam production. In order to better investigate these effects the CAPRICE ECRIS has been operated using these techniques. The ion beam properties for highly charged ions have been measured with beam diagnostic tools. The reason of the observed variations of this performance can be related to the different electromagnetic field patterns, which are changing inside the plasma chamber when the frequency is varying.

Maimone, F. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt (Germany); Universita degli Studi di Catania, D.M.F.C.I, Viale A. Doria 6, 95125 Catania (Italy); Tinschert, K.; Lang, R.; Maeder, J.; Rossbach, J.; Spaedtke, P. [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstr. 1, 64291 Darmstadt (Germany); Celona, L. [INFN-LNS, Via S. Sofia 62, 95123 Catania (Italy)

2012-02-15T23:59:59.000Z

418

Astronomical reach of fundamental physics  

Science Journals Connector (OSTI)

...what remains after such a star’s thermonuclear life. The pressure, which like all pressures...peak temperature the integrated core thermonuclear power is smaller than the surface...First, Ms is not determined solely by thermonuclear considerations—photon opacities...

Adam S. Burrows; Jeremiah P. Ostriker

2014-01-01T23:59:59.000Z

419

Catalytic distillation extends its reach  

SciTech Connect (OSTI)

Since the early 1980s, catalytic distillation processes have been selected by more than a hundred operators for various applications. Since such a unit performs both reaction and distillation simultaneously, a combined column can replace a separate, fixed-bed reactor and distillation column, thereby eliminating equipment and reducing capital costs. And, compared to the conventional approach, catalytic distillation may also improve other factors, such as reactant conversion, selectivity, mass transfer, operating pressure, oligomer formation and catalyst fouling. The constant washing of the catalyst by liquid flowing down the column and the distillation of high-boiling foulants results in extended catalyst life. Four selective hydrogenation applications of catalytic distillation are discussed: Butadiene selective hydrogenation combined within an MTBE unit; Pentadiene selective hydrogenation; C{sub 4} acetylene conversion; and Benzene saturation.

Rock, K.; McGuirk, T. [Catalytic Distillation Technologies, Houston, TX (United States); Gildert, G.R. [Catalytic Distillation Technologies, Pasadena, TX (United States)

1997-07-01T23:59:59.000Z

420

Carbon sequestration monitoring with acoustic double-difference waveform inversion: A case study on SACROC walkaway VSP data  

E-Print Network [OSTI]

Geological carbon sequestration involves large-scale injection of carbon dioxide into underground geologic formations and is considered as a potential approach for mitigating global warming. Changes in reservoir properties ...

Yang, Di

2011-01-01T23:59:59.000Z

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


421

A novel integrated thermally double coupled configuration for methane steam reforming, methane oxidation and dehydrogenation of propane  

Science Journals Connector (OSTI)

Abstract The goal of this study is the simultaneous production of synthesis gas, hydrogen and propylene in a thermally double coupled steam reformer reactor. This reactor has three concentric tubes where the exothermic reaction of methane oxidation is supposed to occur in the middle tube and the inner and outer tubes are considered to be endothermic sides of steam reforming and propane dehydrogenation, respectively. The motivation is to combine the energy efficient concept of coupling one exothermic reaction with two endothermic reactions, enhancement of synthesis gas production, propylene and hydrogen production and also producing two different H2/CO ratio streams of syngas. A steady state homogeneous model of fixed bed for three sides predicts the performance of this new configuration. The simulation results are compared with corresponding predictions of the conventional steam reformer. The results prove that synthesis gas production is increased in a thermally double coupled reactor in comparison with conventional steam reforming. In addition, the thermally double coupled reactor reduces the capital and operating costs by reducing the reactor size and consumption of energy.

D. Karimipourfard; S. Kabiri; M.R. Rahimpour

2014-01-01T23:59:59.000Z

422

Hydrogen and fluorine migration in photo-double-ionization of 1,1-difluoroethylene (1,1-C2H2F2) near and above threshold  

Science Journals Connector (OSTI)

We have studied the nondissociative and dissociative photo-double-ionization of 1,1-difluoroethylene using single photons of energies ranging from 40 to 70 eV. Applying a coincident electron-ion three-dimensional momentum imaging technique, kinematically complete measurements have been achieved. We present the branching ratios of the six reaction channels identified in the experiment. Electron-ion energy maps and relative electron emission angles are used to distinguish between direct and indirect photo-double-ionization mechanisms at a few different photon energies. The influence of selection and propensity rules is discussed. Threshold energies of double ionization are extracted from the sum of the kinetic energies of the electrons, which hint to the involvement of different manifolds of states. The dissociative ionization channels with two ionic fragments are explored in detail by measuring the kinetic energy release of the fragment ions, sum of the kinetic energies, as well as the energy sharing of the two emitted electrons. We investigate the migration of hydrogen and fluorine atoms and compare the experimental results to the photo-double-ionization of centrosymmetric linear and planar hydrocarbons (C2H2 and C2H4) whenever possible.

B. Gaire; I. Bocharova; F. P. Sturm; N. Gehrken; J. Rist; H. Sann; M. Kunitski; J. Williams; M. S. Schöffler; T. Jahnke; B. Berry; M. Zohrabi; M. Keiling; A. Moradmand; A. L. Landers; A. Belkacem; R. Dörner; I. Ben-Itzhak; Th. Weber

2014-04-21T23:59:59.000Z

423

Effect of cancellation in neutrinoless double beta decay  

Science Journals Connector (OSTI)

In light of recent experimental results, we carefully analyze the effects of interference in neutrinoless double beta decay, when more than one mechanism is operative. If a complete cancellation is at work, the half-life of the corresponding isotope is infinite, and any constraint on it will automatically be satisfied. We analyze this possibility in detail assuming a cancellation in Xe136, and find its implications on the half-life of other isotopes, such as Ge76. For definiteness, we consider the role of light and heavy sterile neutrinos. In this case, the effective Majorana mass parameter can be redefined to take into account all contributions, and its value gets suppressed. Hence, larger values of neutrino masses are required for the same half-life. The canonical light neutrino contribution cannot saturate the present limits of half-lives or the positive claim of observation of neutrinoless double beta decay, once the stringent bounds from cosmology are taken into account. For the case of cancellation, where all the sterile neutrinos are heavy, the tension between the results from neutrinoless double beta decay and cosmology becomes more severe. We show that the inclusion of light sterile neutrinos in this setup can resolve this issue. Using the recent results from GERDA, we derive upper limits on the active-sterile mixing angles and compare them with the case of no cancellation. The required values of the mixing angles become larger, if a cancellation is at work. A direct test of destructive interference in Xe136 is provided by the observation of this process in other isotopes, and we study in detail the correlation between their half-lives. Finally, we discuss the model realizations which can accommodate light and heavy sterile neutrinos and the cancellation. We show that sterile neutrinos of few hundred MeV or GeV mass range, coming from an Extended seesaw framework or a further extension, can satisfy the required cancellation.

Manimala Mitra; Silvia Pascoli; Steven Wong

2014-11-11T23:59:59.000Z

424

Mixer pump test plan for double shell tank AZ-101  

SciTech Connect (OSTI)

Westinghouse Hanford Company has undertaken the task to develop and demonstrate a method of retrieval for double-shell tank (DST)waste. Mixer pumps were chosen as the planned method of retrieval for the DSTs, based on engineering technology studies,past experience with hydraulic sluicing at the Hanford Site, and experience with mixer pumps at the Westinghouse Savannah River Site. This document outlines a test plan to demonstrate the ability of two 300 hp mixer pumps installed in the AZ-101 tank to mobilize waste.

Symons, G.A.; Staehr, T.W., Westinghouse Hanford

1996-06-01T23:59:59.000Z

425

Double degenerates and progenitors of supernovae type Ia  

E-Print Network [OSTI]

We report on systematic radial velocity surveys for white dwarf - white dwarf binaries (double degenerates - DDs) including SPY (ESO Supernovae Ia progenitor survey) recently carried out at the VLT. A large sample of DD will allow us to put strong constrains on the phases of close binary evolution of the progenitor systems and to perform an observational test of the DD scenario for supernovae of type Ia. We explain how parameters of the binaries can be derived from various methods. Results for a sample of DDs are presented and discussed.

R. Napiwotzki; L. Yungelson; G. Nelemans; T. R. Marsh; B. Leibundgut; A. Renzini; D. Homaier; D. Koester; S. Moehler; N. Christlieb; D. Reimers; H. Drechsel; U. Heber; C. Karl; E. -M. Pauli

2004-03-25T23:59:59.000Z

426

Double Well Potentials and Quantum Phase Transitions in Ion Traps  

Science Journals Connector (OSTI)

We demonstrate that the radial degree of freedom of strings of trapped ions in the quantum regime may be prepared and controlled accurately through the variation of the external trapping potential while at the same time its properties are measurable with high spatial and temporal resolution. This provides a new testbed giving access to static and dynamical properties of the physics of quantum-many-body systems and quantum phase transitions that are hard to simulate on classical computers. Furthermore, it allows for the creation of double well potentials with experimentally accessible tunneling rates, with applications in testing the foundations of quantum physics and precision sensing.

A. Retzker; R. C. Thompson; D. M. Segal; M. B. Plenio

2008-12-30T23:59:59.000Z

427

Container lid gasket protective strip for double door transfer system  

DOE Patents [OSTI]

An apparatus and a process for forming a protective barrier seal along a "ring of concern" of a transfer container used with double door systems is provided. A protective substrate is supplied between a "ring of concern" and a safety cover in which an adhesive layer of the substrate engages the "ring of concern". A compressive foam strip along an opposite side of the substrate engages a safety cover such that a compressive force is maintained between the "ring of concern" and the adhesive layer of the substrate.

Allen, Jr., Burgess M

2013-02-19T23:59:59.000Z

428

Search for the double beta decay of sup 244 Pu  

SciTech Connect (OSTI)

We have searched for the ingrowth of {sup 244}Cm in a 1.45-g sample of {sup 244}Pu. We isolated a curium fraction after an ingrowth period of 1.03 yr; during this time the {sup 244}Pu sample produced {le}0.24 alpha disintegrations per day of {sup 244}Cm (95% C.L.), corresponding to a half-life for the double beta decay of {sup 244}Pu of {ge}1.1{times}10{sup 18} yr.

Moody, K.J.; Lougheed, R.W.; Hulet, E.K. (Nuclear Chemistry Division, Lawrence Livermore National Laboratory, University of California, Livermore, California 94551 (United States))

1992-12-01T23:59:59.000Z

429

Lattice ribbons: A model of double-stranded polymers  

Science Journals Connector (OSTI)

We introduce a discrete ribbon model for double-stranded polymers (such as duplex DNA) where the ribbon is constrained to lie on the simple cubic lattice Z3. The ribbon is made up of a sequence of plaquettes and can either be open or closed. We investigate the growth of the number of ribbons as a function of the number of plaquettes and use Monte Carlo methods to estimate the dimensions of the ribbon, the writhe of the backbone and, in the case of orientable closed ribbons, the linking number of the two boundary curves.

E.J. Janse van Rensburg; E. Orlandini; D.W Sumners; M.C. Tesi; S.G. Whittington

1994-12-01T23:59:59.000Z

430

Nuclear moments for the neutrinoless double beta decay  

E-Print Network [OSTI]

A derivation of the neutrinoless double beta decay rate, specially adapted for the nuclear structure calculations, is presented. It is shown that the Fourier-Bessel expansion of the hadronic currents, jointly with the angular momentum recoupling, leads to very simple final expressions for the nuclear form factors. This greatly facilitates the theoretical estimate of the half life. Our approach does not require the closure approximation, which however can be implemented if desired. The method is exemplified for the $\\beta\\beta$ decay $^{48}Ca \\to ^{48}Ti$, both within the QRPA and a shell-model like model.

C. Barbero; F. Krmpotic; D. Tadic

1998-02-23T23:59:59.000Z

431

Calculation of nuclear matrix elements in neutrinoless double electron capture  

E-Print Network [OSTI]

We compute nuclear matrix elements for neutrinoless double electron capture on $^{152}$Gd, $^{164}$Er and $^{180}$W nuclei. Recent precise mass measurements for these nuclei have shown a large resonance enhancement factor that makes them the most promising candidates for observing this decay mode. We use an advanced energy density functional method which includes beyond mean-field effects such as symmetry restoration and shape mixing. Our calculations reproduce experimental charge radii and $B(E2)$ values predicting a large deformation for all these nuclei. This fact reduces significantly the values of the NMEs leading to half-lives larger than $10^{29}$ years for the three candidates.

Tomas R. Rodriguez; Gabriel Martinez-Pinedo

2012-03-05T23:59:59.000Z

432

Search for neutrinoless double beta decay with CUORE  

Science Journals Connector (OSTI)

The Cryogenic Underground Observatory for Rare Events (CUORE) is an experiment to search for neutrinoless double-beta decay (0???) of 130Te and other rare processes. The observation of 0??? would reveal the Majorana nature of the neutrino and could give information about the absolute mass scale and mass hierarchy of the neutrino. 988 bolometric detectors made from natural TeO2 with a total mass of 750 kg will be operated in CUORE. The result from the Cuoricino experiment a predecessor experiment of CUORE as well as an overview of the CUORE-0 and CUORE experiments and their current status is given.

Daniel Lenz; CUORE Collaboration

2012-01-01T23:59:59.000Z

433

Strong Evidence for Gender Differences in Investment  

E-Print Network [OSTI]

period for potential investment. Do you have any questions?it is hard to know how investment decisions are reached inempirical findings from investment decisions is an important

Charness, Gary B; Gneezy, Uri

2007-01-01T23:59:59.000Z

434

Double-core excitations in formamide can be probed by X-ray double-quantum-coherence spectroscopy  

SciTech Connect (OSTI)

The attosecond, time-resolved X-ray double-quantum-coherence four-wave mixing signals of formamide at the nitrogen and oxygen K-edges are simulated using restricted excitation window time-dependent density functional theory and the excited core hole approximation. These signals, induced by core exciton coupling, are particularly sensitive to the level of treatment of electron correlation, thus providing direct experimental signatures of electron and core-hole many-body effects and a test of electronic structure theories.

Zhang Yu; Healion, Daniel; Biggs, Jason D.; Mukamel, Shaul [Department of Chemistry, University of California, 450 Rowland Hall, Irvine, California 92697 (United States)

2013-04-14T23:59:59.000Z

435

Additional Nucleon Current Contributions to Neutrinoless Double Beta Decay  

E-Print Network [OSTI]

We have examined the importance of momentum dependent induced nucleon currents such as weak-magnetism and pseudoscalar couplings to the amplitude of neutrinoless double beta decay in the mechanisms of light and heavy Majorana neutrino as well as in that of Majoron emission. Such effects are expected to occur in all nuclear models in the direction of reducing the light neutrino matrix elements by about 30%. To test this we have performed a calculation of the nuclear matrix elements of the experimentally interesting nuclei A = 76, 82, 96, 100, 116, 128, 130, 136 and 150 within the pn-RQRPA. We have found that indeed such corrections vary somewhat from nucleus to nucleus, but in all cases they are greater than 25 percent. In the case of heavy neutrino the effect is much larger (a factor of 3). Combining out results with the best presently available experimental limits on the half-life of the neutrinoless double beta decay we have extracted new limits on the effective neutrino mass (light and heavy) and the effective Majoron coupling constant.

F. Simkovic; G. Pantis; J. D. Vergados; A. Faessler

1999-05-27T23:59:59.000Z

436

Resistance associated with measurements of capacitance in electric double layers  

Science Journals Connector (OSTI)

The behavior of electric double layers at polarized interfaces in \\{KCl\\} solutions is revisited in order to examine properties of the constant phase element (CPE). We pay attention specifically to frequency-dependence of both the capacitance and the resistance. Two parallel platinum wires immersed in solution are used as insulator-free electrodes. They avoid stray capacitance or irreproducibility of impedance caused by incompleteness of electric shield of electrodes. The Nyquist plot takes approximately a straight line because the in-phase component, Z1 is inversely proportional to ac-frequency, similar to the capacitance. Since Z1 extrapolated to zero separation of the electrodes is non-zero, a resistance is present at the double layer in parallel form. It is not a Faradaic resistance because of absence of any electroactive species. The parallel resistance is inversely proportional to the frequency, whereas the capacitance decreases with a linear relation to logarithm of the frequency. The latter is responsible for the frequency-dependence of the former. The parallel resistance is the apparent one involved inevitably in ac-measurements of the capacitance. Values of the capacitance are independent of concentration of \\{KCl\\} in the domain from 0.1 mM to 3 M.

Koichi Aoki; Yongdan Hou; Jingyuan Chen; Toyohiko Nishiumi

2013-01-01T23:59:59.000Z

437

Improved analysis techniques for cylindrical and spherical double probes  

SciTech Connect (OSTI)

A versatile double Langmuir probe technique has been developed by incorporating analytical fits to Laframboise's numerical results for ion current collection by biased electrodes of various sizes relative to the local electron Debye length. Application of these fits to the double probe circuit has produced a set of coupled equations that express the potential of each electrode relative to the plasma potential as well as the resulting probe current as a function of applied probe voltage. These equations can be readily solved via standard numerical techniques in order to determine electron temperature and plasma density from probe current and voltage measurements. Because this method self-consistently accounts for the effects of sheath expansion, it can be readily applied to plasmas with a wide range of densities and low ion temperature (T{sub i}/T{sub e} Much-Less-Than 1) without requiring probe dimensions to be asymptotically large or small with respect to the electron Debye length. The presented approach has been successfully applied to experimental measurements obtained in the plume of a low-power Hall thruster, which produced a quasineutral, flowing xenon plasma during operation at 200 W on xenon. The measured plasma densities and electron temperatures were in the range of 1 Multiplication-Sign 10{sup 12}-1 Multiplication-Sign 10{sup 17} m{sup -3} and 0.5-5.0 eV, respectively. The estimated measurement uncertainty is +6%/-34% in density and +/-30% in electron temperature.

Beal, Brian; Brown, Daniel; Bromaghim, Daron [Air Force Research Laboratory, 1 Ara Rd., Edwards Air Force Base, California 93524 (United States); Johnson, Lee [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, California 91109 (United States); Blakely, Joseph [ERC Inc., 1 Ara Rd., Edwards Air Force Base, California 93524 (United States)

2012-07-15T23:59:59.000Z

438

Radiative double-electron capture by bare nucleus with emission of one photon  

SciTech Connect (OSTI)

Calculation of the cross-section for the process of double-electron capture by a bare nucleus with emission of a single photon is presented. The double-electron capture is evaluated within the framework of quantum electrodynamics. The line-profile approach is employed. Since the radiative double-electron capture is governed by the electron correlation, corrections to the interelectron interaction were calculated with high accuracy, partly to all orders of the perturbation theory.

Chernovskaya, E. A.; Andreev, O. Yu. [Faculty of Physics, St. Petersburg State University, Ulyanovskaya 1, 198504, Petergof, St. Petersburg (Russian Federation); Labzowsky, L. N. [Faculty of Physics, St. Petersburg State University, Ulyanovskaya 1, 198504, Petergof, St. Petersburg (Russian Federation); Petersburg Nuclear Physics Institute, 188300, Gatchina, St. Petersburg (Russian Federation)

2011-12-15T23:59:59.000Z

439

Search for Neutrinoless Double-Beta Decay in 136 Xe with EXO-200  

E-Print Network [OSTI]

Search for Neutrinoless Double-Beta Decay in 136 Xe with EXO-200 M. Auger,1 D. J. Auty,2 P. S on a search for neutrinoless double-beta decay of 136Xe with EXO-200. No signal is observed for an exposure a lower limit on the half-life of the neutrinoless double-beta decay T0#12;#12; 1=2 ð136Xe� > 1:6 � 1025

Piepke, Andreas G.

440

Shell model nuclear matrix elements for competing mechanisms contributing to double beta decay  

SciTech Connect (OSTI)

Recent progress in the shell model approach to the nuclear matrix elements for the double beta decay process are presented. This includes nuclear matrix elements for competing mechanisms to neutrionless double beta decay, a comparison between closure and non-closure approximation for {sup 48}Ca, and an updated shell model analysis of nuclear matrix elements for the double beta decay of {sup 136}Xe.

Horoi, Mihai [Department of Physics, Central Michigan University, Mount Pleasant, Michigan, 48859 (United States)

2013-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Results on neutrinoless double beta decay of 76 Ge from Gerda Phase I  

E-Print Network [OSTI]

Results on neutrinoless double beta decay of 76 Ge from Gerda Phase I M. Agostini,14 M. Allardt,3 E and a lower limit is derived for the half-life of neutrinoless double beta decay of 76 Ge, T0 1/2> 2.1 · 1025 double beta decay of the isotope 76 Ge. Data con- sidered in the present analysis have been collected

442

Energy management in solar thermal power plants with double thermal storage system and subdivided solar field  

Science Journals Connector (OSTI)

In the paper, two systems for solar thermal power plants (STPPs) are devised for improving the overall performance of the plant. Each one attempts to reduce losses coming from two respective sources. The systems are simulated and compared to a reference STPP. They consists on: (a) a double thermal energy storage (DTS) with different functionalities for each storage and (b) the subdivision of the solar collector field (SSF) into specialised sectors, so that each sector is designed to meet a thermal requirement, usually through an intermediate heat exchanger. This subdivision reduces the losses in the solar field by means of a decrease of the temperature of the heat transfer fluid (HTF). Double thermal energy storage is intended for keeping the plant working at nominal level for many hours a day, including post-sunset hours. One of the storages gathers a fluid which is heated up to temperatures above the nominal one. In order to make it work, the solar field must be able to overheat the fluid at peak hours. The second storage is the classical one. The combination of both allows the manager of the plant to keep the nominal of the plant for longer periods than in the case of classical thermal energy storage. To the authors’ knowledge, it is the first time that both configurations are presented and simulated for the case of parabolic through STPP with HTF technology. The results show that, if compared to the reference STPP, both configurations may raise the annual electricity generation (up to 1.7% for the DTS case and 3.9% for the SSF case).

Antonio Rovira; María José Montes; Manuel Valdes; José María Martínez-Val

2011-01-01T23:59:59.000Z

443

Design Assessments of a Magnetic-geared Double-rotor Permanent Magnet Generator.  

E-Print Network [OSTI]

??The purpose of this research is to provide systematic design of a permanent magnet (PM) generator, by adopting the double-rotor and the coaxial magnetic gear… (more)

Chung, He-Yu

2013-01-01T23:59:59.000Z

444

Phase one contamination migration testing of the double-lid bagless posting system  

SciTech Connect (OSTI)

This document describes leak rate tests on a double lid radioactive waste storage container, developed during the Microwave Solidification Project at Rocky Flats Plant.

Smith, J.A.

1994-09-01T23:59:59.000Z

445

The role of the induced currents in the mass mechanism of neutrinoless double-beta decay  

Science Journals Connector (OSTI)

The nuclear matrix elements of Majorana neutrino mass mechanism of neutrinoless double-beta decay have so far been calculated using only... ...

George Pantis; Fedor Šimkovic

2000-04-01T23:59:59.000Z

446

Layered double hydroxides : synthesis and application in gene delivery to mammalian cells in culture.  

E-Print Network [OSTI]

??Layered double hydroxides (LDHs) or hydrotalcite-like compounds (HTLcs) are classified as anionic clays in which their structure is based upon brucite and are represented by… (more)

Balcomb, Blake.

2010-01-01T23:59:59.000Z

447

Muon-Induced Backgrounds in the Double Chooz Neutrino Oscillation Experiment  

E-Print Network [OSTI]

for neutrinoless double-beta decay, a lepton-number violating nuclear process. The observation of a non-zero rate

448

Dynamics of ion acoustic double layers in a magnetized two-population electrons plasma  

SciTech Connect (OSTI)

The obliquely propagating ion acoustic (IA) double-layers are investigated in a magnetized two population electron plasmas. The extended Korteweg–de Vries equation is derived by using the reductive perturbation technique. The effect of obliqueness (l{sub z}) and magnitude of the external magnetic field (?{sub ci}), as well as the electron number density (?) on the double-layer profile, is studied, and then the ranges of parameters for which the double-layers exist are investigated in detail. We found that the combined effects of l{sub z}, ?{sub ci}, and ? significantly modify the basic properties (viz. amplitude and width) of the IA double-layers.

Shahmansouri, M. [Department of Physics, Faculty of Science, Arak University, Arak 38156-8-8349 (Iran, Islamic Republic of)] [Department of Physics, Faculty of Science, Arak University, Arak 38156-8-8349 (Iran, Islamic Republic of)

2013-10-15T23:59:59.000Z

449

The H2 Double-Slit Experiment: Where Quantum and Classical Physics...  

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

electron suffices to induce the emergence of classical properties such as loss of coherence. Double photoionization of H2. Left: Circularly polarized light comes from the top....

450

An Investigation and Characterization of Metal Foam Filled Double-Pipe Heat Exchangers.  

E-Print Network [OSTI]

??The effect of using metal foams in double-pipe heat exchangers is investigated in this work. The advantages and drawbacks of using metal foams in these… (more)

Chen, Xi

2014-01-01T23:59:59.000Z

451

A Search for the Neutrinoless Double Beta Decay of Xenon-136 with Improved Sensitivity from Denoising .  

E-Print Network [OSTI]

??The EXO-200 detector is designed to search for the neutrinoless double beta decay of 136Xe. ??0? decay, if it occurs in nature, would demonstrate the… (more)

Davis, Clayton G.

2014-01-01T23:59:59.000Z

452

Towards a precision measurement of the half life of neutrinoless double beta decay of 136Xe.  

E-Print Network [OSTI]

??Recent neutrino oscillation experiments provide proof that neutrinos are massive par- ticles, but the absolute neutrino mass scale remains unknown. Observation of neu- trinoless double… (more)

Stanford University, Dept. of Physics

2011-01-01T23:59:59.000Z

453

Search for neutrinoless double beta decay of Cd-116 with the NEMO-3 experiment.  

E-Print Network [OSTI]

??This dissertation describes the approach taken in measuring two neutrino double beta decay of Cd-116 to the ground state of Sn-116 and in searching for… (more)

Pahlka, Raymond Benton

2010-01-01T23:59:59.000Z

454

On ion probes and traps, barium tagging for the EXO double beta decay detector.  

E-Print Network [OSTI]

??The Enriched Xenon Observatory seeks to measure neutrino mass through observation of neutrinoless double beta decay. A new generation of ton-scale experiments are being developed,… (more)

Stanford University, Dept. of Physics

2010-01-01T23:59:59.000Z

455

MATLAB COMMANDS AND CODES FOR DIFFERENT CHARACTERISTICS OF SPINDLES IN ADAMC SOFTWARE.  

E-Print Network [OSTI]

MATLAB COMMANDS AND CODES FOR DIFFERENT CHARACTERISTICS OF SPINDLES IN ADAMC SOFTWARE. To get with respect to long axis. Command for MATLAB: · finangdisp(cells) for standard graph · finangdisp before reaching the certain angle towards long axis. Command for MATLAB: · aligninitang(cells,4,'ellang

Draviam, Viji M.

456

The Effect of Disorder in Superfluid Double Layer Graphene  

E-Print Network [OSTI]

We investigate the superfluid properties of disordered double layer graphene systems using the non-equilibrium Green's function (NEGF) formalism. The complexity of such a structure makes it imperative to study the effects of lattice vacancies which will inevitably arise during fabrication. We present and compare room temperature performance characteristics for both ideal and disordered bilayer graphene systems in an effort to illustrate the behavior of a Bose-Einstein Condensate in the presence of lattice defects under non-equilibrium conditions. We find that lattice vacancies spread throughout the top layer past the coherence length have a reduced effect compared to the ideal case. However, vacancies concentrated near the metal contacts within the coherence length significantly alter the interlayer superfluid transport properties.

Brian Dellabetta; Matthew J. Gilbert

2011-04-12T23:59:59.000Z

457

Valley pair qubits in double quantum dots of gapped graphene  

E-Print Network [OSTI]

The rise of graphene opens a new door to qubit implementation, as discussed in the recent proposal of valley pair qubits in double quantum dots of gapped graphene (Wu et al., arXiv: 1104.0443 [cond-mat.mes-hall]). The work here presents the comprehensive theory underlying the proposal. It discusses the interaction of electrons with external magnetic and electric fields in such structures. Specifically, it examines a strong, unique mechanism, i.e., the analogue of the 1st-order relativistic effect in gapped graphene. This mechanism is state mixing free and allows, together with the electrically tunable exchange coupling, a fast, all-electric manipulation of qubits via electric gates, in the time scale of ns. The work also looks into the issue of fault tolerance in a typical case, yielding at 10oK a long qubit coherence time (~O(ms)).

G. Y. Wu; N. -Y. Lue; L. Chang

2011-07-03T23:59:59.000Z

458

Range-Separated Brueckner Coupled Cluster Doubles Theory  

Science Journals Connector (OSTI)

We introduce a range-separation approximation to coupled cluster doubles (CCD) theory that successfully overcomes limitations of regular CCD when applied to the uniform electron gas. We combine the short-range ladder channel with the long-range ring channel in the presence of a Bruckner renormalized one-body interaction and obtain ground-state energies with an accuracy of 0.001 a.u./electron across a wide range of density regimes. Our scheme is particularly useful in the low-density and strongly correlated regimes, where regular CCD has serious drawbacks. Moreover, we cure the infamous overcorrelation of approaches based on ring diagrams (i.e., the particle-hole random phase approximation). Our energies are further shown to have appropriate basis set and thermodynamic limit convergence, and overall this scheme promises energetic properties for realistic periodic and extended systems which existing methods do not possess.

James J. Shepherd; Thomas M. Henderson; Gustavo E. Scuseria

2014-04-03T23:59:59.000Z

459

Ferroelectric modulation on resonant tunneling through perovskite double-barriers  

SciTech Connect (OSTI)

The negative differential resistance (NDR) due to resonance tunneling is achieved at room temperature in perovskite double-barrier heterostructures composed of a 10 unit-cell-thick SrTiO{sub 3} quantum well sandwiched in two 10 unit-cell-thick LaAlO{sub 3} barriers. The NDR occurs at 1.2?V and does not change with voltage cycling. When the paraelectric SrTiO{sub 3} quantum well is replaced by a ferroelectric BaTiO{sub 3}, the onset of the NDR can be modulated by polarization switching in the ultrathin BaTiO{sub 3}. A polarization pointing to the collector lowers the NDR voltage but a polarization pointing to the emitter increases it. The shift of the NDR voltage is ascribed to reversal of the extra electric field in the quantum well due to the polarization switching.

Du, Ruifang; Qiu, Xiangbiao; Li, Aidong; Wu, Di, E-mail: diwu@nju.edu.cn [National Laboratory of Solid State Microstructures and Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093 (China)

2014-04-07T23:59:59.000Z

460

Double rotation NMR studies of zeolites and aluminophosphate molecular sieves  

SciTech Connect (OSTI)

Goal is to study the organization and structures of guest atoms and molecules and their reactions on internal surfaces within pores of zeolites and aluminophosphate molecular sieves. {sup 27}Al and {sup 23}Na double rotation NMR (DOR) is used since it removes the anisotropic broadening in NMR spectra of quadrupolar nuclei, thus increasing resolution. This work concentrates on probing aluminum framework atoms in aluminophosphate molecular sieves and sodium extra framework cations in porous aluminosilicates. In aluminophosphates, ordering and electronic environments of the framework {sup 27}Al nuclei are modified upon adsorption of water molecules within the channels; a relation is sought between the sieve channel topology and the organization of adsorbed water, as well as the interaction between the Al nuclei and the water molecules. Extra framework Na{sup +} cations are directly involved in adsorption processes and reactions in zeolite cavities.

Jelinek, R. [California Univ., Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley Lab., CA (United States)

1993-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "differences reaching double" 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

Arbitrary mass Majorana neutrinos in neutrinoless double beta decay  

Science Journals Connector (OSTI)

We revisit the mechanism of neutrinoless double beta (0???) decay mediated by the exchange with the heavy Majorana neutrino N of arbitrary mass mN, slightly mixed ?UeN with the electron neutrino ?e. By assuming the dominance of this mechanism, we update the well-known 0???-decay exclusion plot in the mN?UeN plane taking into account recent progress in the calculation of nuclear matrix elements within quasiparticle random phase approximation and improved experimental bounds on the 0???-decay half-life of Ge76 and Xe136. We also consider the known formula approximating the mN dependence of the 0???-decay nuclear matrix element in a simple explicit form. We analyze its accuracy and specify the corresponding parameters, allowing one to easily calculate the 0???-decay half-life for arbitrary mN for all the experimentally interesting isotopes without resorting to real nuclear structure calculations.

Amand Faessler; Marcela González; Sergey Kovalenko; Fedor Šimkovic

2014-11-21T23:59:59.000Z

462

Nuclear moments for the neutrinoless double beta decay II  

E-Print Network [OSTI]

The recently developed formalism for the evaluation of nuclear form factors in neutrinoless double beta decay is applied to $^{48}Ca$, $^{76}Ge$, $^{82}Se$, $^{100}Mo$, $^{128}Te$ and $^{130}Te$ nuclei. Explicit analytical expressions that follows from this theoretical development, in the single mode model for the decay of $^{48}Ca$, have been worked out. They are useful both for testing the full numerical calculations, and for analytically checking the consistency with other formalisms. Large configuration space calculations are compared with previous studies, where alternative formulations were used. Yet, besides using the G-matrix as residual interaction, we here use a simple $\\delta$-force. Attention is paid to the connected effects of the short range nuclear correlations and the finite nucleon size. Constraints on lepton number violating terms in the weak Hamiltonian (effective neutrino Majorana mass and effective right-handed current coupling strengths) are deduced.

C. Barbero; F. Krmpoti?; A. Mariano; D. Tadi?

1999-04-12T23:59:59.000Z

463

Arbitrary mass Majorana neutrinos in neutrinoless double beta decay  

E-Print Network [OSTI]

We revisit the mechanism of neutrinoless double beta (NLDBD) decay mediated by the exchange with the heavy Majorana neutrino N of arbitrary mass mN, slightly mixed with the electron neutrino. By assuming the dominance of this mechanism, we update the well-known NLDBD-decay exclusion plot in the mass-mixing angle plane taking into account recent progress in the calculation of nuclear matrix elements within quasiparticle random phase approximation and improved experimental bounds on the NLDBD-decay half-life of Ge-76 and Xe-136. We also consider the known formula approximating the mN dependence of the NLDBD-decay nuclear matrix element in a simple explicit form. We analyze its accuracy and specify the corresponding parameters, allowing one to easily calculate the NLDBD-decay half-life for arbitrary mN for all the experimentally interesting isotopes without resorting to real nuclear structure calculations.

Amand Faessler; Marcela Gonzalez; Sergey Kovalenko; Fedor Simkovic

2014-08-26T23:59:59.000Z

464

Cryogenic Double Beta Decay Experiments: CUORE and CUORICINO  

E-Print Network [OSTI]

Cryogenic bolometers, with their excellent energy resolution, flexibility in material, and availability in high purity, are excellent detectors for the search for neutrinoless double beta decay. Kilogram-size single crystals of TeO_2 are utilized in CUORICINO for an array with a total detector mass of 40.7 kg. CUORICINO currently sets the most stringent limit on the halflife of Te-130 of T > 2.4x10^{24} yr (90% C.L.), corresponding to a limit on the effective Majorana neutrino mass in the range of < 0.2-0.9 eV. Based on technology developed for CUORICINO and its predecessors, CUORE is a next-generation experiment designed to probe neutrino mass in the range of 10 - 100 meV. Latest results from CUORICINO and overview of the progress and current status of CUORE are presented.

Reina Maruyama; for the CUORE Collaboration

2008-09-23T23:59:59.000Z

465

Double optical spring enhancement for gravitational wave detectors  

E-Print Network [OSTI]

Currently planned second-generation gravitational-wave laser interferometers such as Advanced LIGO exploit the extensively investigated signal-recycling (SR) technique. Candidate Advanced LIGO configurations are usually designed to have two resonances within the detection band, around which the sensitivity is enhanced: a stable optical resonance and an unstable optomechanical resonance - which is upshifted from the pendulum frequency due to the so-called optical-spring effect. Alternative to a feedback control system, we propose an all-optical stabilization scheme, in which a second optical spring is employed, and the test mass is trapped by a stable ponderomotive potential well induced by two carrier light fields whose detunings have opposite signs. The double optical spring also brings additional flexibility in re-shaping the noise spectral density and optimizing toward specific gravitational-wave sources. The presented scheme can be extended easily to a multi-optical-spring system that allows further optimization.

Henning Rehbein; Helge Mueller-Ebhardt; Kentaro Somiya; Stefan L. Danilishin; Roman Schnabel; Karsten Danzmann; Yanbei Chen

2008-05-20T23:59:59.000Z

466

Low Radioactivity Crystals for Neutrinoless Double Beta Decay Detectors  

Science Journals Connector (OSTI)

The production of crystals needed for rare events physics represent a relatively new exciting challenge in the field of materials science and engineering. Extremely low concentration of radioactive impurities and very high crystal perfection is required for the crystals to be used in experiments in which the main concerns are the reduction of the background and the use of high sensitivity detectors. A further complication is the fact that for an experiment with a significant discovery potential relatively large quantities of crystals are needed. The present work makes a review of the general problems related to the production of crystals for rare events physics and gives details related to the production of the TeO 2 crystals needed for the major experiment in this field using bolometric technique namely the CUORE experiment. The potential use of crystals for future double beta decay experiments is also discussed.

Ioan Dafinei; CUORE Collaboration

2011-01-01T23:59:59.000Z

467

Chiral Two?body Currents and Neutrinoless Double Beta Decay  

Science Journals Connector (OSTI)

The nuclear matrix elements (NMEs) of neutrinoless double?beta (0???) decay are studied using weak currents derived in the framework of chiral effective field theory. Apart from the standard one?body (1b) currents it is shown that two?body (2b) currents contribute to weak processes. The normal?ordered 1b part of 2b currents modifies the Gamow?Teller (GT) ?? ? part of the 1b current contributing to the well?known quenching of GT single?? decays. The momentum?transfer dependence of the quenching due to 2b currents is also predicted. Therefore including 2b currents allows to address microscopically the problem of the axial weak coupling (g A ) value which is the biggest uncertainty in the 0??? decay NME calculations for all available methods.

Javier Menéndez

2011-01-01T23:59:59.000Z

468

The nuclear matrix elements for neutrinoless double beta decay  

Science Journals Connector (OSTI)

The status of calculation of the neutrinoless double beta decay ( 0??? ?decay) nuclear matrix elements (NME's) is reviewed. The spread of published values of NME's is discussed. The main attention is paid to the recent progress achieved in the evaluation of the 0??? ?decay NME's in the framework of the quasiparticle random phase approximation (QRPA). The obtained results are compared with those of the nuclear shell model. The problem of reliable determination of the 0??? ?decay NME's is addressed. The uncertainty in NME's are analyzed and further progress in calculation of the 0??? ?decay NME's is outlined.

Fedor Šimkovic

2007-01-01T23:59:59.000Z

469

Statics and dynamics of Bose-Einstein condensates in double square well potentials  

SciTech Connect (OSTI)

We treat the behavior of Bose-Einstein condensates in double square well potentials of both equal and different depths. For even depth, symmetry preserving solutions to the relevant nonlinear Schroedinger equation are known, just as in the linear limit. When the nonlinearity is strong enough, symmetry breaking solutions also exist, side by side with the symmetric one. Interestingly, solutions almost entirely localized in one of the wells are known as an extreme case. Here we outline a method for obtaining all these solutions for repulsive interactions. The bifurcation point at which, for critical nonlinearity, the asymmetric solutions branch off from the symmetry preserving ones is found analytically. We also find this bifurcation point and treat the solutions generally via a Josephson junction model. When the confining potential is in the form of two wells of different depth, interesting phenomena appear. This is true of both the occurrence of the bifurcation point for the static solutions and also of the dynamics of phase and amplitude varying solutions. Again a generalization of the Josephson model proves useful. The stability of solutions is treated briefly.

Infeld, E. [Soltan Institute for Nuclear Studies, Hoza 69, PL-00-681 Warsaw (Poland); Zin, P. [Institute for Theoretical Physics, Warsaw University, Hoza 69, PL-00-681 Warsaw (Poland); Gocalek, J. [Polish Academy of Science, Al. Lotnikow 32/46, 02-668 Warsaw (Poland); Trippenbach, M. [Soltan Institute for Nuclear Studies, Hoza 69, PL-00-681 Warsaw (Poland); Institute for Theoretical Physics, Warsaw University, Hoza 69, PL-00-681 Warsaw (Poland)

2006-08-15T23:59:59.000Z

470

Synthetic hydrotalcite-type and hydrocalumite-type layered double hydroxides for arsenate uptake  

Science Journals Connector (OSTI)

The objectives of this study were to (i) synthesize cost-effective layered double hydroxides (LDH) or anionic clays to remove arsenate from water and (ii) quantify arsenate uptake by LDH and understand the mechanisms of uptake. Hydrotalcite and hydrocalumite-type \\{LDHs\\} were synthesized by coprecipitation at room temperature or higher with different compositions of layers and interlayers. The kinetics study showed that anion exchange apparently attained a steady-state in the range of 8–16 h. The arsenate removal was 100% and 99.9% with nitrate form of hydrotalcite and hydrocalumite, respectively. Carbonate and chloride forms of hydrotalcite and chloride form of hydrocalumite removed 50–90% of arsenate from solution. The uptake capacities of hydrotalcites synthesized by different methods were also compared. Hydrotalcite-type LDH synthesized by coprecipitation method had greater uptake capacity than those synthesized by hydrothermal method because of smaller crystal size in the former. The uptake of oxyanions with calcined hydrotalcite-type LDH was higher than with commercially available uncalcined carbonate form of hydrotalcite-type LDH, as expected. Calcination of hydrotalcite-type LDH produced intermediate non-stoichiometric oxides, which underwent rehydration and regeneration of the structure with the incorporation of these oxyanions. In the presence of much larger concentrations of other anions, the uptake of arsenate was reduced but it was still selective on LDH. The results of uptake were confirmed by powder X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM).

Kanchan Grover; Sridhar Komarneni; Hiroaki Katsuki

2010-01-01T23:59:59.000Z

471

A Markovian model for the hybrid manufacturing planning and control method 'Double Speed Single Production Line'  

Science Journals Connector (OSTI)

In this paper, the hybrid production planning & control method Double Speed Single Production Line (DSSPL) is presented, modelled and its performances evaluated and compared to classical Production Planning and Control methods (PPC). DSSPL combines JIT/kanban ... Keywords: Double Speed Single Production Line, Hybrid manufacturing planning & control method, Industrial case study, Markov processes

Naoufel Cheikhrouhou; Christoph Hachen; Rémy Glardon

2009-10-01T23:59:59.000Z

472

A double-layer Boussinesq-type model for highly nonlinear and dispersive waves  

Science Journals Connector (OSTI)

...articles 1009 1008 119 73 A double-layer Boussinesq-type model for highly nonlinear and...approximation, a new double-layer Boussinesq-type model that is linearly and nonlinearly...comparison with so-called high-order Boussinesq models. A linear analysis of the model...

2009-01-01T23:59:59.000Z

473

Overlapping double etch technique for evaluation of metallic alloys to stress corrosion cracking  

DOE Patents [OSTI]

A double overlapping etch zone technique for evaluation of the resistance of metallic alloys to stress corrosion cracking. The technique involves evaluating the metallic alloy along the line of demarcation between an overlapping double etch zone and single etch zone formed on the metallic alloy surface.

Steeves, Arthur F. (Schenectady, NY); Stewart, James C. (Loudonville, NY)

1981-01-01T23:59:59.000Z

474

Double-hybrid density-functional theory with meta-generalized-gradient approximations  

E-Print Network [OSTI]

Double-hybrid density-functional theory with meta-generalized-gradient approximations Sidi Ould-parameter double-hybrid density-functional theory [K. Sharkas, J. Toulouse, and A. Savin, J. Chem. Phys. 134 of the most accurate approximations for electronic-structure calculations within density- functional theory

Paris-Sud XI, Université de

475

HEAT TRANSFERS IN A DOUBLE SKIN ROOF VENTILATED BY NATURAL CONVECTION IN SUMMER TIME  

E-Print Network [OSTI]

1 HEAT TRANSFERS IN A DOUBLE SKIN ROOF VENTILATED BY NATURAL CONVECTION IN SUMMER TIME P. H or in tropical and arid countries. In this work, radiation, convection and conduction heat transfers-dimensional numerical simulation of the heat transfers through the double skin reveals the most important parameters

Boyer, Edmond

476

CHARGE-BASED MOS CORRELATED DOUBLE SAMPLING COMPARATOR AND FOLDING CIRCUIT  

E-Print Network [OSTI]

CHARGE-BASED MOS CORRELATED DOUBLE SAMPLING COMPARATOR AND FOLDING CIRCUIT Roman Genov and Gert 21218-2686 E-mail: roman,gert¡ @bach.ece.jhu.edu ABSTRACT A novel charge-based comparator and folding circuit are pre- sented. Correlated double sampling comparison is performed using a log-domain integrator

Cauwenberghs, Gert

477

Analysis of Bacterial Communities in Seagrass Bed Sediments by Double-Gradient Denaturing Gradient Gel Electrophoresis  

E-Print Network [OSTI]

Microbial Ecology Analysis of Bacterial Communities in Seagrass Bed Sediments by Double, including the presence or absence of vegetation, depth into sediment, and season. Double- gradient of these similarity coefficients were used to group banding patterns by depth into sediment, presence or absence

Sherman, Tim

478

Probing many-particle correlations in semiconductor quantum wells using double-quantum-coherence signals  

E-Print Network [OSTI]

Probing many-particle correlations in semiconductor quantum wells using double-quantum-coherence, 92697-2025, United States ABSTRACT Multidimensional analysis of coherent signals is commonly used-dimensional correlation spectroscopy technique which employs double-quantum-coherence to investigate many-body effects

Mukamel, Shaul

479

A Dual-Band Antenna for WLAN Applications by Double Rectangular Patch with 4-Bridges  

E-Print Network [OSTI]

A Dual-Band Antenna for WLAN Applications by Double Rectangular Patch with 4-Bridges Chang won Jung, Irvine, Irvine, CA, 92697, USA Abstract: Double rectangular patch with 4-bridges is investigated for solution of IEEE 802.11b/g (2.4GHz) and 802.11a (5.5GHz). Rectangular patch for 5.5GHz frequency band

De Flaviis, Franco

480

Middle School Academic Competition - Double Elimination | U.S. DOE Office  

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

Academic Competition - Double Academic Competition - Double Elimination National Science Bowl® (NSB) NSB Home About High School Middle School Attending National Event Volunteers 2013 Competition Results Middle School Round Robin Middle School Double Elimination Middle School Electric Car High School Round Robin High School Double Elimination News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov 2013 Competition Results Middle School Academic Competition - Double Elimination Print Text Size: A A A RSS Feeds FeedbackShare Page No-Loss Bracket .pdf file (42KB) (Final Results) Challengers' Bracket .pdf file (42KB) (Final Results) Last modified: 4/29/2013 11:22:57 AM

Note: This page contains sample records for the topic "differences reaching double" 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

High School Academic Competition - Double Elimination | U.S. DOE Office of  

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

Double Double Elimination National Science Bowl® (NSB) NSB Home About High School Middle School Attending National Event Volunteers 2013 Competition Results Middle School Round Robin Middle School Double Elimination Middle School Electric Car High School Round Robin High School Double Elimination News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov 2013 Competition Results High School Academic Competition - Double Elimination Print Text Size: A A A RSS Feeds FeedbackShare Page No-Loss Bracket .pdf file (45KB)(Final Results) Challengers' Bracket .pdf file (42KB) (Final Results) Last modified: 4/29/2013 11:56:04 AM

482

T-682:Double free vulnerability in MapServer | Department of Energy  

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

2:Double free vulnerability in MapServer 2:Double free vulnerability in MapServer T-682:Double free vulnerability in MapServer August 2, 2011 - 4:08pm Addthis PROBLEM: Double free vulnerability in MapServer PLATFORM: All versions may be susceptible to SQL injection under certain circumstances ABSTRACT: MapServer developers have discovered flaws in the OGC filter support in MapServer. Specific code is used in support of WFS, WMS-SLD and SOS specifications. All versions may be susceptible to SQL injection under certain circumstances. The extent of the vulnerability depends on the MapServer version, relational database and mapfile configuration being used. All users are strongly encouraged to upgrade to these latest releases. reference LINKS: Double-free in msAddImageSymbol() when filename is a http resource

483

Neutron Inelastic Scattering Processes as Background for Double-Beta Decay Experiments  

E-Print Network [OSTI]

We investigate several Pb$(n,n'\\gamma$) and Ge$(n,n'\\gamma$) reactions. We measure $\\gamma$-ray production from Pb$(n,n'\\gamma$) reactions that can be a significant background for double-beta decay experiments which use lead as a massive inner shield. Particularly worrisome for Ge-based double-beta decay experiments are the 2041-keV and 3062-keV $\\gamma$ rays produced via Pb$(n,n'\\gamma$). The former is very close to the ^{76}Ge double-beta decay endpoint energy and the latter has a double escape peak energy near the endpoint. Excitation $\\gamma$-ray lines from Ge$(n,n'\\gamma$) reactions are also observed. We consider the contribution of such backgrounds and their impact on the sensitivity of next-generation searches for neutrinoless double-beta decay using enriched germanium detectors.

D. -M. Mei; S. R. Elliott; A. Hime; V. Gehman; K. Kazkaz

2007-04-03T23:59:59.000Z

484

Systematic Effects in Pulse Shape Analysis of HPGe Detector Signals for Neutrinoless Double-Beta Decay  

E-Print Network [OSTI]

Pulse shape analysis is an important background reduction and signal identification technique for next generation of neutrinoless double-beta decay experiments examining 76Ge. We present a study of the systematic uncertainties in one such parametric pulse-shape analysis technique for separating multi-site backgrounds from single-site signal events. We examined systematic uncertainties for events in full-energy gamma peaks (predominantly multi-site), double escape peaks (predominantly single-site) and the Compton continuum near double-beta decay endpoint (which will be the dominant background for most neutrinoless double-beta decay searches). In short, we find total (statistical plus systematic) fractional uncertainties in the pulse shape cut survival probabilities of: 6.6%, 1.5% and 3.8% for double-escape, continuum and gamma-ray events respectively.

Victor M Gehman; Steven R Elliott; Dongming Mei

2009-07-16T23:59:59.000Z

485

Double-detonation explosions as progenitors of type Iax supernovae  

E-Print Network [OSTI]

It has recently been proposed that one sub-class of type Ia supernovae (SNe Ia) is sufficiently both distinct and common to be classified separately from the bulk of SNe Ia, with a suggested class name of "type Iax supernovae" (SNe Iax), after SN 2002cx. We show that the population properties of this class can be understood if the events originate from helium double-detonation sub-Chandrasekhar mass explosions, in which a carbon--oxygen white dwarf (CO WD) accumulates a helium layer from a non-degenerate helium star. We have incorporated detailed binary evolution calculations for the progenitor systems into a binary population synthesis model to obtain birthrates and delay times for such events. The predicted Galactic event rate is $\\sim$$0.6-1.8\\times 10^{-3}\\,{\\rm yr}^{-1}$, in good agreement with the measured rates of SNe Iax. In addition, predicted delay times are $\\sim$70\\,Myr$-$710\\,Myr, consistent with the fact that SNe Iax have so far only been discovered in late-type galaxies. Based on the CO WD mass...

Wang, Bo; Han, Zhanwen

2013-01-01T23:59:59.000Z

486

Analysis of Residential Demand Response and Double-Auction Markets  

SciTech Connect (OSTI)

Demand response and dynamic pricing programs are expected to play increasing roles in the modern Smart Grid environment. While direct load control of end-use loads has existed for decades, price driven response programs are only beginning to be explored at the distribution level. These programs utilize a price signal as a means to control demand. Active markets allow customers to respond to fluctuations in wholesale electrical costs, but may not allow the utility to control demand. Transactive markets, utilizing distributed controllers and a centralized auction can be used to create an interactive system which can limit demand at key times on a distribution system, decreasing congestion. With the current proliferation of computing and communication resources, the ability now exists to create transactive demand response programs at the residential level. With the combination of automated bidding and response strategies coupled with education programs and customer response, emerging demand response programs have the ability to reduce utility demand and congestion in a more controlled manner. This paper will explore the effects of a residential double-auction market, utilizing transactive controllers, on the operation of an electric power distribution system.

Fuller, Jason C.; Schneider, Kevin P.; Chassin, David P.

2011-10-10T23:59:59.000Z

487

Twofold reentrant melting in a double-Gaussian fluid  

E-Print Network [OSTI]

Isotropic pair potentials that are bounded at the origin have been proposed from time to time as models of the effective interaction between macromolecules of interest in the chemical physics of soft matter. We present a thorough study of the phase behavior of point particles interacting through a potential which combines a bounded short-range repulsion with a much weaker attraction at moderate distances, both of Gaussian shape. Notwithstanding the fact that the attraction acts as a small perturbation of the Gaussian-core model potential, the phase diagram of the double-Gaussian model (DGM) is far richer, showing two fluid phases and four distinct solid phases in the case that we have studied. Using free-energy calculations, the various regions of confluence of three distinct phases in the DGM system have all been characterized in detail. Moreover, two distinct lines of reentrant melting are found, and for each of them a rationale is provided in terms of the elastic properties of the solid phases.

S. Prestipino; C. Speranza; G. Malescio; P. V. Giaquinta

2014-03-04T23:59:59.000Z

488

Parametric analysis of a double-effect steam absorption chiller  

Science Journals Connector (OSTI)

The development in the field of refrigeration and cooling systems based on absorption cycles has attained its own internal dynamic in the last decade. A major obstacle for developing model is the lack of available component specifications. These specifications are commonly proprietary of the chiller's manufacturers and normally the available information is not sufficient. This work presented a double-effect parallel-flow-type steam absorption chiller model based on thermodynamic and energy equations. The chiller studied is 1250 RT (Refrigeration Tons) using lithium bromide -water as working pair. The mathematical equations that govern the operation of the steam absorption chiller are developed and from the available design data the values of the overall heat transfer coefficient multiplied by the heat exchanger surface area and the characteristics of each component of the absorption chiller at the design point are calculated. For thermo physical and thermodynamic properties for lithium bromide-water solution set of computationally efficient formulations are used. The model gives the required information about temperature concentration and flow rate at each state point of the system. The model calculates the heat load at each component as well as the performance of the system.

Mojahid Sid Ahmed Mohammed Salih Ahmed; Syed Ihtsham Ul-Haq Gilani

2012-01-01T23:59:59.000Z

489

Topological atlas of the Kovalevskaya top in a double field  

E-Print Network [OSTI]

We fulfill the rough topological analysis of the problem of the motion of the Kovalevskaya top in a double field. This problem is described by a completely integrable system with three degrees of freedom not reducible to a family of systems with two degrees of freedom. The notion of a topological atlas of an irreducible system is introduced. The complete topological analysis of the critical subsystems with two degrees of freedom is given. We calculate the types of all critical points. We present the parametric classification of the equipped iso-energy diagrams of the complete momentum map pointing out all chambers, families of 3-tori, and 4-atoms of their bifurcations. Basing on the ideas of A.T. Fomenko, we introduce the notion of the simplified net iso-energy invariant. All such invariants are constructed. Using them, we establish, for all parametrically stable cases, the number of critical periodic solutions of all types and the loop molecules of all rank 1 singularities. The work was supported by the grants of the RFBR No. 13-01-97025 and 14-01-00119.

Mikhail P. Kharlamov; Pavel E. Ryabov

2014-12-04T23:59:59.000Z

490

Plasmons in spatially separated double-layer graphene nanoribbons  

SciTech Connect (OSTI)

Motivated by innovative progresses in designing multi-layer graphene nanostructured materials in the laboratory, we theoretically investigate the Dirac plasmon modes of a spatially separated double-layer graphene nanoribbon system, made up of a vertically offset armchair and metallic graphene nanoribbon pair. We find striking features of the collective excitations in this novel Coulomb correlated system, where both nanoribbons are supposed to be either intrinsic (undoped/ungated) or extrinsic (doped/gated). In the former, it is shown the low-energy acoustical and the high-energy optical plasmon modes are tunable only by the inter-ribbon charge separation. In the later, the aforementioned plasmon branches are modified by the added doping factor. As a result, our model could be useful to examine the existence of a linear Landau-undamped low-energy acoustical plasmon mode tuned via the inter-ribbon charge separation as well as doping. This study might also be utilized for devising novel quantum optical waveguides based on the Coulomb coupled graphene nanoribbons.

Bagheri, Mehran, E-mail: mh-bagheri@sbu.ac.ir [Laser and Plasma Research Institute, Shahid Beheshti University, G. C., Evin, Tehran 19835-63113 (Iran, Islamic Republic of); Bahrami, Mousa [ICFO-Institut de Ciencies Fotoniques, Parc Mediterrani de la Tecnologia, 08860 Castelldefels (Barcelona) (Spain)

2014-05-07T23:59:59.000Z

491

Search for Neutrinoless Double Beta Decay with the CUORE experiment  

Science Journals Connector (OSTI)

CUORE is a next generation experiment aimed at the detection of neutrinoless Double Beta Decay of the nuclide 130 Te . The experiment which will take place in the Gran Sasso National Laboratory (Italy) will look for this rare decay using the macrobolometric technique with a prospected array of 988 detectors. Each bolometer will be constituted by a 5×5×5? cm 3 TeO 2 crystal for a total mass of about 200 kg of 130 Te and will be maintained at a temperature of 10 mK. CUORE will probe the effective mass of the neutrino with a sensitivity of a few tens of meV. If an excess of counts are observed above background at the 2.5 MeV corresponding to the Q?value of the decay CUORE will answer several questions that are still open in the field of neutrino physics such as the determination of the particle’s Majorana nature and of the absolute mass scale. A prototype for CUORE in Gran Sasso named CUORICINO has just closed after five years proving its importance as a stand?alone experiment.

P. Gorla; CUORE collaboration

2009-01-01T23:59:59.000Z

492

Proton-Neutron Pairing Amplitude as a Generator Coordinate for Double-Beta Decay Nobuo Hinohara1, 2  

E-Print Network [OSTI]

the experimental bound [11] on neutrinoless double beta decay (## 0# ). The only way out would be to have two

Engel, Jonathan

493

Uncertainties in nuclear transition matrix elements for ?+?+ and ??+ modes of neutrinoless positron double-? decay within the projected Hartree-Fock-Bogoliubov model  

Science Journals Connector (OSTI)

Uncertainties in the nuclear transition matrix elements M(0?) and M(0N) of the double-positron emission (?+?+)0? and electron-positron conversion (??+)0? modes owing to the exchange of light and heavy Majorana neutrinos, respectively, are calculated for 96Ru, 102Pd, 106Cd, 124Xe, 130Ba, and 156Dy isotopes by employing the PHFB model with four different parametrizations of the pairing plus multipolar two-body interactions and three different parametrizations of the Jastrow short-range correlations. In all cases but for 130Ba the uncertainties are smaller than 14% for light Majorana neutrino exchange and 35% for the exchange of a heavy Majorana neutrino.

P. K. Rath, R. Chandra, K. Chaturvedi, P. Lohani, P. K. Raina, and J. G. Hirsch

2013-01-03T23:59:59.000Z

494

Hydrogen and fluorine migration in photo-double-ionization of 1,1-difluoroethylene (1,1-C2H2F2) near and above threshold  

E-Print Network [OSTI]

and fluorine migration in photo-double-ionization of 1,1-nondissociative and dissociative photo-double-ionization ofdirect and indirect photo-double-ionization mechanisms at a

Gaire, B.

2014-01-01T23:59:59.000Z

495

PHYSICAL REVIEW C 84, 044316 (2011) Nonperturbative renormalization of the neutrinoless double-operator in p-shell nuclei  

E-Print Network [OSTI]

PHYSICAL REVIEW C 84, 044316 (2011) Nonperturbative renormalization of the neutrinoless double-shell interactions and neutrinoless double- operators that exactly reproduce the results of large no physicists hope to learn about the overall neutrino- mass scale by observing neutrinoless double-beta (0

Engel, Jonathan

496

237. S.A. Eliseev, .. Yu.N. Novikov et Resonant Enhancement of Neutrinoless Double-Electron Capture  

E-Print Network [OSTI]

.. 237. S.A. Eliseev, .. Yu.N. Novikov et al.. Resonant Enhancement of Neutrinoless Double al. Q values for neutrinoless double-electron capture in 96Ru, 162Er, and 168Yb. Phys. Rev. C 83 in neutrinoless double-electron capture." Phys. Rev. C 84 (2011) 012501. 240. S. Eliseev, Yu. Novikov et al

Titov, Anatoly

497

A Search for Neutrinoless Double-beta Decay of Germanium-76 J.F. Wilkerson1, 2, 3  

E-Print Network [OSTI]

A Search for Neutrinoless Double-beta Decay of Germanium-76 J.F. Wilkerson1, 2, 3 and S.R. Elliott4, The Majorana collaboration[1] is searching for neutrinoless double beta decay using 76 Ge, which has previously of neutrinoless double-beta decay would show that lepton number is violated, neutrinos are Majorana particles

498

The gravitational-wave signal generated by a galactic population of double neutron-star binaries  

E-Print Network [OSTI]

We investigate the gravitational wave (GW) signal generated by a population of double neutron-star binaries (DNS) with eccentric orbits caused by kicks during supernova collapse and binary evolution. The DNS population of a standard Milky-Way type galaxy has been studied as a function of star formation history, initial mass function (IMF) and metallicity and of the binary-star common-envelope ejection process. The model provides birth rates, merger rates and total numbers of DNS as a function of time. The GW signal produced by this population has been computed and expressed in terms of a hypothetical space GW detector (eLISA) by calculating the number of discrete GW signals at different confidence levels, where `signal' refers to detectable GW strain in a given frequency-resolution element. In terms of the parameter space explored, the number of DNS-originating GW signals is greatest in regions of recent star formation, and is significantly increased if metallicity is reduced from 0.02 to 0.001, consistent wi...

Yu, Shenghua

2015-01-01T23:59:59.000Z

499

Evaluation of Ultrasonic Measurement Variation in the Double-Shell Tank Integrity Project  

SciTech Connect (OSTI)

Washington River Protection Solutions (WRPS) under contract from the U.S. Department of Energy (DOE) is responsible for assessing the condition of the double-shell tanks (DST) on the Hanford nuclear site. WRPS has contracted with AREVA Federal Services LLC (AFS) to perform ultrasonic testing (UT) inspections of the 28 DSTs to assess the condition of the tanks, judge the effects of past corrosion control practices, and satisfy a regulatory requirement to periodically assess the integrity of the tanks. Since measurement inception in 1997, nine waste tanks have been examined twice (at the time of this report) providing UT data that can now be compared over specific areas. During initial reviews of these two comparable data sets, average UT wall-thickness measurement reductions were noted in most of the tanks. This variation could be a result of actual wall thinning occurring on the waste-tanks walls, or some other unexplained anomaly resulting from measurement error due to causes such as the then-current measurement procedures, operator setup, or equipment differences. WRPS contracted with the Pacific Northwest National Laboratory (PNNL) to assist in understanding why this variation exists and where it stems from.

Pardini, Allan F.; Weier, Dennis R.; Crawford, Susan L.; Munley, John T.

2010-01-12T23:59:59.000Z

500

ESTIMATING HIGH LEVEL WASTE MIXING PERFORMANCE IN HANFORD DOUBLE SHELL TANKS  

SciTech Connect (OSTI)

The ability to effectively mix, sample, certify, and deliver consistent batches of high level waste (HLW) feed from the Hanford double shell tanks (DSTs) to the Waste Treatment and Immobilization Plant (WTP) presents a significant mission risk with potential to impact mission length and the quantity of HLW glass produced. The Department of Energy's (DOE's) Tank Operations Contractor (TOC), Washington River Protection Solutions (WRPS) is currently demonstrating mixing, sampling, and batch transfer performance in two different sizes of small-scale DSTs. The results of these demonstrations will be used to estimate full-scale DST mixing performance and provide the key input to a programmatic decision on the need to build a dedicated feed certification facility. This paper discusses the results from initial mixing demonstration activities and presents data evaluation techniques that allow insight into the performance relationships of the two small tanks. The next steps, sampling and batch transfers, of the small scale demonstration activities are introduced. A discussion of the integration of results from the mixing, sampling, and batch transfer tests to allow estimating full-scale DST performance is presented.

THIEN MG; GREER DA; TOWNSON P

2011-01-13T23:59:59.000Z