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1

Utility rate change propagation is now much faster | OpenEI Community  

Open Energy Info (EERE)

rate change propagation is now much faster rate change propagation is now much faster Home > Groups > Utility Rate Rmckeel's picture Submitted by Rmckeel(297) Contributor 19 March, 2013 - 16:30 developer Semantic Mediawiki Utility Rates Good news, everyone! Changes to the utility rate template or fields cause small updates on all 29K+ utility rates on OpenEI, which takes time to process. Older versions of mediawiki and semantic mediawiki were not as efficient at handling these. Preliminary results after changing a field and tweaking job run speeds shows a ~60X improvement in speed. Changes to utility rates can now be propagated to the entire database in approximately 35 minutes - before it took more than one day. We are hopeful we will keep seeing various benefits from the upgrade process.

2

EFFECT OF REACTION RATE PERIODICITY ON DETONATION PROPAGATION  

E-Print Network [OSTI]

EFFECT OF REACTION RATE PERIODICITY ON DETONATION PROPAGATION Eric O. Morano and Joseph E. Shepherd through numerical simulations how the detonation propagation is affected by the heterogeneous rate but there is no accepted and accurate repre- sentation of all thermodynamic states significant to the detonation process

Barr, Al

3

Effects of Shear Rate on Propagation of Blood Clotting Determined Using Microfluidics and Numerical Simulations  

E-Print Network [OSTI]

Effects of Shear Rate on Propagation of Blood Clotting Determined Using Microfluidics and Numerical-ismagilov@uchicago.edu Abstract: This paper describes microfluidic experiments with human blood plasma and numerical simulations removed. In addition, these results demonstrate the utility of simplified mechanisms and microfluidics

Ismagilov, Rustem F.

4

Comment on ``High Temperature Fermion Propagator -- Resummation and Gauge Dependence of the Damping Rate''  

E-Print Network [OSTI]

Baier et al. have reported the damping rate of long-wavelength fermionic excitations in high-temperature QED and QCD to be gauge-fixing-dependent even within the resummation scheme due to Braaten and Pisarski. It is shown that this problem is caused by the singular nature of the on-shell expansion of the fermion self-energy in the infra-red. Its regularization reveals that the alleged gauge dependence pertains to the residue rather than the pole of the fermion propagator, so that in particular the damping constant comes out gauge-independent, as it should.

Anton Rebhan

1992-04-06T23:59:59.000Z

5

Health Relevant Outdoor Air Change Rates in Homes  

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

Health Relevant Outdoor Air Change Rates in Homes Health Relevant Outdoor Air Change Rates in Homes Speaker(s): Jan Sundell Date: February 6, 2003 - 12:00pm Location: Bldg. 90 The Damp Building and Health (DBH) study started as a cross-sectional questionnaire study of all 14000 children, 1-6 years of age in Värmland, Sweden. The response rate on the questionnaire (year 2001) was 79%, meaning that basic data exists on almost 12,000 children and their homes. In a second step a case-control study on 200 sick (wheezing, asthma, excema), and 200 healthy children, extensive measurements in the home, as well as clinical examinations of the children has been conducted during 2002. Ventilation has been measured with a passive tracer gas method during one week. The results will be presented in this seminar-- seemingly sick

6

Propagation of gravitational waves in a universe with slowly-changing equation of state  

E-Print Network [OSTI]

An exact solution for the expansion of a flat universe with dark energy evolving according to a simple model is explored. The equation for weak primordial gravitational waves propagating in this universe is solved and explored; gravitational waves in a flat cosmology possessing both a "big bang" singularity and a "big rip" singularity can be described with confluent Heun functions. We develop approximation methods for confluent Heun equations in regimes of interest to gravitational wave astronomers and predict the diminution in gravitational wave amplitude in a universe with both a Big Bang and a Big Rip.

Edmund Schluessel

2014-06-17T23:59:59.000Z

7

Solar geoengineering to limit the rate of temperature change  

Science Journals Connector (OSTI)

...original author and source are credited. Solar geoengineering to limit the rate of temperature...altering the Earth's energy budget . Solar geoengineering has been suggested as a...describe an alternative scenario in which solar geoengineering is used only to constrain...

2014-01-01T23:59:59.000Z

8

ORIGINAL PAPER Environment and feeding change the ability of heart rate  

E-Print Network [OSTI]

ORIGINAL PAPER Environment and feeding change the ability of heart rate to predict metabolism 2010 � Springer-Verlag 2010 Abstract The ability to use heart rate (fh) to predict oxygen consumption, and environmental states. Keywords Steller sea lion Á Heart rate Á Oxygen consumption Á Heat increment of feeding Á

9

ORIGINAL PAPER Environment and feeding change the ability of heart rate  

E-Print Network [OSTI]

ORIGINAL PAPER Environment and feeding change the ability of heart rate to predict metabolism 2010 / Published online: 12 August 2010 � Springer-Verlag 2010 Abstract The ability to use heart rate of physiological, behavioral, and environmental states. Keywords Steller sea lion Á Heart rate Á Oxygen consumption

10

Heart Rate Regulation processed through wavelet analysis and change detection. Some case studies  

E-Print Network [OSTI]

Heart Rate Regulation processed through wavelet analysis and change detection. Some case studies-mail: veronique.billat@wanadoo.fr December 29, 2010 Abstract Heart rate variability (HRV) is an indicator of the regulation of the heart engine, Task Force (1996). This study compares the regulation of the heart in two

Paris-Sud XI, Université de

11

Structural Change, the Real Exchange Rate, and the Balance of Payments in Mexico, 1960-2012  

E-Print Network [OSTI]

Structural Change, the Real Exchange Rate, and the Balance of Payments in Mexico, 1960-2012 Carlos structural changes in the composition of Mexico's trade and the parameters that affect it across five-of-payments constraint may account for the post-liberalization slowdown in Mexico's growth only during certain subperiods

Lansky, Joshua

12

Heart rate change and attitudes to global warming: A conceptual replication of the visceral fit mechanism  

Science Journals Connector (OSTI)

Abstract Visceral fit effects occur when a physical state (e.g., warmth) increases the plausibility of future related states (e.g., global warming). We attempted to conceptually replicate such effects by investigating whether belief in global warming is influenced by a change in heart rate, which is linked to body warmth. In four studies, participants' heart rates were varied via mental manipulation or physical exercise. In three of the studies, increased heart rate was associated with greater self-reported belief that global warming was occurring. Across all studies, the association between heart rate and self-reported belief in global warming was small in statistical effect size and very small in absolute terms. We suggest that the effects of incidental cues are interesting because such factors should not influence global warming beliefs at all, but the small absolute size of the effects means that situational cues are unlikely to alter a person's stance on climate change.

Aaron Drummond; Matthew A. Palmer

2014-01-01T23:59:59.000Z

13

Changes in the Enzymatic Hydrolysis Rate of Avicel Cellulose With Conversion  

E-Print Network [OSTI]

INTRODUCTION Cellulose can be hydrolyzed to glucose, a sugar that is easily fermented to ethanol and otherChanges in the Enzymatic Hydrolysis Rate of Avicel Cellulose With Conversion Bin Yang, Deidre M: 10.1002/bit.20942 Abstract: The slow down in enzymatic hydrolysis of cellulose with conversion has

California at Riverside, University of

14

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

E-Print Network [OSTI]

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

Hansen, René Rydhof

15

Changing Ventilation Rates in U.S. Offices: Implications for Health, Work  

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

Changing Ventilation Rates in U.S. Offices: Implications for Health, Work Changing Ventilation Rates in U.S. Offices: Implications for Health, Work Performance, Energy, and Associated Economics Title Changing Ventilation Rates in U.S. Offices: Implications for Health, Work Performance, Energy, and Associated Economics Publication Type Journal Article Refereed Designation Refereed LBNL Report Number LBNL-5035E Year of Publication 2012 Authors Fisk, William J., Douglas R. Black, and Gregory Brunner Journal Building and Environment Volume 47 Pagination 368-372 Date Published 01/2012 Keywords cost-benefit analysis, economizer, health, office, ventilation rate, work performance Abstract This paper provides quantitative estimates of benefits and costs of providing different amounts of outdoor air ventilation in U.S. offices. For four scenarios that modify ventilation rates, we estimated changes in sick building syndrome (SBS) symptoms, work performance, short-term absence, and building energy consumption. The estimated annual economic benefits were $13 billion from increasing minimum ventilation rates (VRs) from 8 to 10 L/s per person, $38 billion from increasing minimum VRs from 8 to 15 L/s per person, and $33 billion from increasing VRs by adding outdoor air economizers for the 50% of the office floor area that currently lacks economizers. The estimated $0.04 billion in annual energy-related benefits of decreasing minimum VRs from 8 to 6.5 L/s per person are very small compared to the projected annual costs of $12 billion. Benefits of increasing minimum VRs far exceeded energy costs while adding economizers yielded health, performance, and absence benefits with energy savings.

16

RATES  

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

Planning & Projects Planning & Projects Power Marketing Rates You are here: SN Home page > Power Marketing > RATES Rates and Repayment Services Rates Current Rates Power Revenue Requirement Worksheet (FY 2014) (Oct 2013 - Sep 2014) (PDF - 30K) PRR Notification Letter (Sep 27, 2013) (PDF - 959K) FY 2012 FP% True-Up Calculations(PDF - 387K) Variable Resource Scheduling Charge FY12-FY16 (October 1, 2012) PRR Forecast FY14-FY17 (May 23, 2013) (PDF - 100K) Forecasted Transmission Rates (May 2013) (PDF - 164K) Past Rates 2013 2012 2011 2010 2009 Historical CVP Transmission Rates (April 2013) (PDF - 287K) Rate Schedules Power - CV-F13 - CPP-2 Transmission - CV-T3 - CV-NWT5 - PACI-T3 - COTP-T3 - CV-TPT7 - CV-UUP1 Ancillary - CV-RFS4 - CV-SPR4 - CV-SUR4 - CV-EID4 - CV-GID1 Federal Register Notices - CVP, COTP and PACI

17

RATES  

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

Marketing > RATES Marketing > RATES RATES Current Rates Past Rates 2006 2007 2008 2009 2010 2011 2012 Rates Schedules Power CV-F13 CPP-2 Transmissions CV-T3 CV-NWT5 PACI-T3 COTP-T3 CV-TPT7 CV-UUP1 Ancillary CV-RFS4 CV-SPR4 CV-SUR4 CV-EID4 CV-GID1 Future and Other Rates SNR Variable Resource Scheduling Charge FY12-FY16 (October 1, 2012) SNR Rates Process Calendar (PDF - 171K) Procedures Informal Process Transmission Action Items List (PDF - 144K) Power Action Item List updated on 4-27-10 (PDF - 155K) Power Action Item List (Quick links to relevant documents) Formal Process Rates Brochure (01/11/2011) (PDF - 900K) Appendix A - Federal Register Notice (01/03/2011) (PDF - 8000K) Appendix B - Central Valley Project Power Repayment Study (PDF - 22,322K) Appendix C - Development of the CVP Cost of Service Study (PDF - 2038K)

18

Dynamic Control of Lab Air Change Rates using Multiplexed IEQ Monitoring  

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

Dynamic Control of Lab Air Change Rates using Multiplexed IEQ Monitoring Dynamic Control of Lab Air Change Rates using Multiplexed IEQ Monitoring Speaker(s): Gordon P. Sharp Date: October 14, 2005 - 12:00pm Location: Bldg. 90 Many aspects of a lab are monitored today in real time such as HVAC equipment operation and lab airflow quantities. However, the quality of lab room airflow or more specifically, the indoor environmental quality (IEQ) performance of a lab, beyond just temperature or perhaps humidity, is rarely monitored due to sensor cost and calibration issues. This is unfortunate, since detailed IEQ monitoring data can be used to substantially reduce lab energy consumption, increase lab safety and with some additional analysis, this data can be used to perform effective continuous commissioning. This presentation discusses a new type of real

19

RATES  

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

RATES RATES Rates Document Library SNR Rates Process Calendar (PDF - 171K) Procedures Informal Process Transmission Action Items List (PDF - 144K) Power Action Item List updated on 4-27-10 (PDF - 155K) Power Action Item List (Quick links to relevant documents) Formal Process Rates Brochure (01/11/2011) (PDF - 900K) Appendix A - Federal Register Notice (01/03/2011) (PDF - 8000K) Appendix B - Central Valley Project Power Repayment Study (PDF - 22,322K) Appendix C - Development of the CVP Cost of Service Study (PDF - 2038K) Appendix D - Western Transmission System Facilities Map (PDF - 274K) Appendix E - Estimated FY12 FP and BR Customer (PDF - 1144K) Appendix F - Forecasted Replacements and Additions FY11 - FY16 (PDF - 491K) Appendix G - Definitions (PDF - 1758K) Appendix H - Acronyms (PDF - 720K)

20

Upper limit on the cross section for reactor antineutrinos changing 22Na decay rates  

E-Print Network [OSTI]

In this paper we present results of a long-term observation of the decay of 22Na in the presence of a nuclear fission reactor. The measurements were made outside the containment wall of and underneath the Koeberg nuclear power plant near Cape Town, South Africa. Antineutrino fluxes ranged from ~5*10^11 to 1.6*10^13 cm^-2 s^-1 during this period. We show that the coincidence summing technique provides a sensitive tool to measure a change in the total decay constant as well as the branching ratio between EC and beta+ decay of 22Na to the first excited state in 22Ne. We observe a relative change in count rate between reactor-ON and reactor-OFF equal to (-0.51+/-0.11)*10^-4. After evaluating possible systematic uncertainties we conclude that the effect is either due to a hidden instrumental cause or due to an interaction between antineutrinos and the 22Na nucleus. An upper limit of ~0.03 barn has been deduced for observing any change in the decay rate of 22Na due to antineutrino interactions.

de Meijer, R J

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Upper limit on the cross section for reactor antineutrinos changing 22Na decay rates  

E-Print Network [OSTI]

In this paper we present results of a long-term observation of the decay of 22Na in the presence of a nuclear fission reactor. The measurements were made outside the containment wall of and underneath the Koeberg nuclear power plant near Cape Town, South Africa. Antineutrino fluxes ranged from ~5*10^11 to 1.6*10^13 cm^-2 s^-1 during this period. We show that the coincidence summing technique provides a sensitive tool to measure a change in the total decay constant as well as the branching ratio between EC and beta+ decay of 22Na to the first excited state in 22Ne. We observe a relative change in count rate between reactor-ON and reactor-OFF equal to (-0.51+/-0.11)*10^-4. After evaluating possible systematic uncertainties we conclude that the effect is either due to a hidden instrumental cause or due to an interaction between antineutrinos and the 22Na nucleus. An upper limit of ~0.03 barn has been deduced for observing any change in the decay rate of 22Na due to antineutrino interactions.

R. J. de Meijer; S. W. Steyn

2014-09-23T23:59:59.000Z

22

Effects of austempering temperature on fatigue crack rate propagation in a series of modified (Cu, Ni, and/or Mo) nodular irons  

Science Journals Connector (OSTI)

Studies on austempered nodular cast irons were carried out to establish the optimum isothermic heat treatment at a given chemical composition that rendered the highest fatigue crack propagation resistance. Sev...

M. Martínez-Madrid; R. Rodríguez-T…

2002-12-01T23:59:59.000Z

23

Routing approach based on rate of transmission failure in ZigBee networks with changing mobility  

Science Journals Connector (OSTI)

In this paper, we propose and evaluate a Transmission Failure Based Routing Algorithm (TFBRA) for low power consumption in ZigBee networks with changing mobility. We analyse the traffic with different routing algorithms which are stated in ZigBee specification. The effects of different factors on data communication are discussed. As the variation of mobility results in changing possibility of sending routing request as well as varying routing performance, the probability of transmission failure in one hop is used to describe node mobility. The TFBRA compares this rate with the threshold which is computed based on hardware condition to decide the routing scheme in ZigBee network. The scheme utilises the information in neighbour table and network address for mobility estimation without any extra communication. The simulation results show that the proposed approach achieves better performance than original routing schemes in ZigBee specification by obtaining lower network load and larger ratio of successful data transmission.

Jiasong Mu; Baoju Zhang; Wei Wang

2013-01-01T23:59:59.000Z

24

Device for testing closure disks at high rates of change of pressure  

DOE Patents [OSTI]

A device is described for testing the burst pressure of closure disks which provides high pressure to both sides of a disk and rapidly releases pressure from one side thereof causing a high rate of change of pressure. A hollow notched plug allows the rapid release of pressure upon rupturing. A means is also disclosed for transmitting a tensile load from a piston to a hollow notched plug and for sealing the means for transmitting load within a hole in a piston. 5 figures.

Merten, C.W. Jr.

1993-11-09T23:59:59.000Z

25

PROPAGATING WAVES ALONG SPICULES  

SciTech Connect (OSTI)

Alfvenic waves are thought to play an important role in coronal heating and acceleration of solar wind. Here we investigate the statistical properties of Alfvenic waves along spicules (jets that protrude into the corona) in a polar coronal hole using high-cadence observations of the Solar Optical Telescope on board Hinode. We developed a technique for the automated detection of spicules and high-frequency waves. We detected 89 spicules and found (1) a mix of upward propagating, downward propagating, as well as standing waves (occurrence rates of 59%, 21%, and 20%, respectively); (2) the phase speed gradually increases with height; (3) upward waves dominant at lower altitudes, standing waves at higher altitudes; (4) standing waves dominant in the early and late phases of each spicule, while upward waves were dominant in the middle phase; (5) in some spicules, we find waves propagating upward (from the bottom) and downward (from the top) to form a standing wave in the middle of the spicule; and (6) the medians of the amplitude, period, and velocity amplitude were 55 km, 45 s, and 7.4 km s{sup -1}, respectively. We speculate that upward propagating waves are produced near the solar surface (below the spicule) and downward propagating waves are caused by reflection of (initially) upward propagating waves off the transition region at the spicule top. The mix of upward and downward propagating waves implies that exploiting these waves to perform seismology of the spicular environment requires careful analysis and may be problematic.

Okamoto, Takenori J. [National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); De Pontieu, Bart, E-mail: joten.okamoto@nao.ac.jp [Lockheed Martin Solar and Astrophysics Laboratory, B/252, 3251 Hanover Street, Palo Alto, CA 94304 (United States)

2011-08-01T23:59:59.000Z

26

Horizontal path propagation measurements over the sea Mark Chang, Freddie Santiago, Carlos O. Font, Yaitza Luna, Erick Rouraa  

E-Print Network [OSTI]

, Ya´itza Luna, Erick Rouraa and Sergio Restainob aDepartment of Physics, University of Puerto Rico of atmospheric turbulence in a tranquil marine environment have been measured with a video rate Shack are presently being determined in a single pass from source to receiver, over a trial distance of 110 meters

Chang, Mark J. L.

27

CO2 tracer gas concentration decay method for measuring air change rate  

Science Journals Connector (OSTI)

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

Shuqing Cui; Michaël Cohen; Pascal Stabat; Dominique Marchio

2015-01-01T23:59:59.000Z

28

Taxi Companies & NU Rates Winter 2011 Survey Note: These rates are subject to change; verify all rates directly with taxi company.  

E-Print Network [OSTI]

, Evanston, IL 60208 CHI address 303 E. Superior, Chicago, IL 60611 EVANSTON O'Hare Airport Midway Airport.00 EVANSTON O'Hare Airport Midway Airport Downtown Chicago Group Rate Purple Cab $31.00 + $1 extra per person.00 + $8 $56.00 + $8 $33.00 + $8 minivan only (by ordinance) CHICAGO O'Hare Airport Midway Airport

Shahriar, Selim

29

Statistica Sinica 21 (2011), 597-624 EARLY DETECTION OF A CHANGE IN POISSON RATE  

E-Print Network [OSTI]

behavior; (2) yearly population size (of males) in New Mexico; and (3) yearly (crude) incidence rate per this article concerns male thyroid cancer cases (with malignant behavior) in New Mexico during 1973

Mei, Yajun

30

Historical changes in US dollar exchange rate and real value of oil  

SciTech Connect (OSTI)

Oil prices relative to world currencies are now at unprecedented lows, as shown by a price analysis that incorporates the effect of US dollar exchange rates on the value of oil. A commodity-based analysis corroborates this exchange-rate analysis. The value of oil today on world markets is even below its 1969 level (the nadir of the previous oil bust). The inflation-corrected price of oil (using the producer price index) in the US has increased 130% since 1969. However, the US dollar has lost over 40% of its value relative to G-7 currencies since abandonment of the Bretton Woods agreement in 1971. Therefore, the real value of oil an international markets is 20% below its 1969 level. Since 1988 alone, the dollar has lost 16% relative to the G-7 currencies. Oil producing countries are taking extreme revenue cuts caused by the eroding US dollar.

DeMis, W.D. (Marathon Oil Co., Midland, TX (United States))

1996-01-01T23:59:59.000Z

31

Historical changes in US dollar exchange rate and real value of oil  

SciTech Connect (OSTI)

Oil prices relative to world currencies are now at unprecedented lows, as shown by a price analysis that incorporates the effect of US dollar exchange rates on the value of oil. A commodity-based analysis corroborates this exchange-rate analysis. The value of oil today on world markets is even below its 1969 level (the nadir of the previous oil bust). The inflation-corrected price of oil (using the producer price index) in the US has increased 130% since 1969. However, the US dollar has lost over 40% of its value relative to G-7 currencies since abandonment of the Bretton Woods agreement in 1971. Therefore, the real value of oil an international markets is 20% below its 1969 level. Since 1988 alone, the dollar has lost 16% relative to the G-7 currencies. Oil producing countries are taking extreme revenue cuts caused by the eroding US dollar.

DeMis, W.D. [Marathon Oil Co., Midland, TX (United States)

1996-12-31T23:59:59.000Z

32

Slip rate variations on normal faults during glacial–interglacial changes in surface loads  

Science Journals Connector (OSTI)

... Here we use finite-element models to investigate why four parallel normal faults—the Wasatch, West Valley, Oquirrh and Stansbury faults in the eastern Basin and Range Province, Utah—have experienced ... We now test whether the Late Pleistocene/Holocene increase in slip rates of the Wasatch, West Valley, Oquirrh and Stansbury normal faults may be due to isostatic rebound caused by the ...

Ralf Hetzel; Andrea Hampel

2005-05-05T23:59:59.000Z

33

Propagators in Lagrangian space  

SciTech Connect (OSTI)

It has been found recently that propagators, e.g. the cross correlation spectra of the cosmic fields with the initial density field, decay exponentially at large k in an Eulerian description of the dynamics. We explore here similar quantities defined for a Lagrangian space description. We find that propagators in Lagrangian space do not exhibit the same properties: they are found not to be monotonic functions of time, and to track back the linear growth rate at late time (but with a renormalized amplitude). These results have been obtained with a novel method which we describe alongside. It allows the formal resummation of the same set of diagrams as those that led to the known results in Eulerian space. We provide a tentative explanation for the marked differences seen between the Eulerian and the Lagrangian cases, and we point out the role played by the vorticity degrees of freedom that are specific to the Lagrangian formalism. This provides us with new insights into the late-time behavior of the propagators.

Bernardeau, Francis; Valageas, Patrick [Institut de Physique Theorique, CEA/DSM/IPhT, Unite de recherche associee au CNRS, CEA/Saclay, 91191 Gif-sur-Yvette cedex, France and Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 3H8 (Canada); Service de Physique Theorique, CEA/DSM/SPhT, Unite de recherche associee au CNRS, CEA/Saclay, 91191 Gif-sur-Yvette cedex (France)

2008-10-15T23:59:59.000Z

34

Regional economic impacts of changes in electricity rates resulting from Western Area Power Administration`s power marketing alternatives  

SciTech Connect (OSTI)

This technical memorandum describes an analysis of regional economic impacts resulting from changes in retail electricity rates due to six power marketing programs proposed by Western Area Power Administration (Western). Regional economic impacts of changes in rates are estimated in terms of five key regional economic variables: population, gross regional product, disposable income, employment, and household income. The REMI (Regional Impact Models, Inc.) and IMPLAN (Impact Analysis for Planning) models simulate economic impacts in nine subregions in the area in which Western power is sold for the years 1993, 2000, and 2008. Estimates show that impacts on aggregate economic activity in any of the subregions or years would be minimal for three reasons. First, the utilities that buy power from Western sell only a relatively small proportion of the total electricity sold in any of the subregions. Second, reliance of Western customers on Western power is fairly low in each subregion. Finally, electricity is not a significant input cost for any industry or for households in any subregion.

Allison, T.; Griffes, P.; Edwards, B.K.

1995-03-01T23:59:59.000Z

35

Use of a reciprocal transplant study to measure the rate of plant community change in a tidal marsh along a salinity gradient  

Science Journals Connector (OSTI)

In a tidal marsh on the Savannah River (Georgia, USA), rate of plant community change along a salinity gradient was measured using a reciprocal transplant study. ... the direction and level of displacement along ...

Paul R. Wetzel; Wiley M. Kitchens; Janell M. Brush; Marsha L. Dusek

2004-12-01T23:59:59.000Z

36

The effects of hypoxia and temperature change on tuning and rate suppression in goldfish auditory nerve fibers  

Science Journals Connector (OSTI)

Goldfish auditory (saccular) nerve fibers are modestly tuned with best frequencies (BF) between 200 and 1500 Hz. Many fibers tuned below 400 Hz also exhibit rate suppression for signals well above BF. To investigate the origins of this frequency selectivity and suppression the responsiveness of saccular fibers was measured during and after transient hypoxia and during changes in body temperature of about ± 5°C. Respirator water temperature controlled body temperature (monitored in the brain). In hypoxia studies the respirator water was turned off for about 20 min. Low temperature and hypoxia had similar effects: a reduction in spontaneous activity sensitivity and responsiveness and greater adaptation and suppression. Although temperature reduction and hypoxia caused a reduction in the most excitatory frequency at any given intensity (suggesting a lowering of the fiber's BF) the present authors could not clearly distinguish between these effects and those caused simply by reducing sound intensity. Thus tuning is not strongly dependent on temperature or oxygen supply and the mechanisms of suppression in the saccular nerve are likely different from those operating in the cochlear nerve of most other vertebrates. [Work supported by a Program Project Grant from NIH and NINCDS.

R. Fay; T. Ream

1987-01-01T23:59:59.000Z

37

The air dose rate around the Fukushima Dai-ichi Nuclear Power Plant: its spatial characteristics and temporal changes until December 2012  

Science Journals Connector (OSTI)

Abstract Distribution maps of air dose rates around the Fukushima Dai-ichi Nuclear Power Plant were constructed using the results of measurement obtained from approximately 6500 locations (at most) per measurement period. The measurements were conducted 1 m above the ground using survey meters in flat and spatially open locations. Spatial distribution and temporal change of the air dose rate in the area were revealed by examining the resultant distribution maps. The observed reduction rate of the air dose rate over the 18 months between June 2011 and December 2012 was greater than that calculated from radioactive decay of radiocesium by 10% in relative percentage except decontaminated sites. This 10% difference in the reduction of the air dose rate can be explained by the mobility of radiocesium in the depth direction. In the region where the air dose rate was lower than 0.25 ?Sv h?1 on June 2011, the reduction of the air dose rate was observed to be smaller than that of the other dose rate regions, and it was in fact smaller than the reduction rate caused by radioactive decay alone. In contrast, the reduction rate was larger in regions with higher air dose rates. In flat and spatially open locations, no significant difference in the reduction tendency of air dose rates was observed among different land use classifications (rice fields, farmland, forests, and building sites).

Satoshi Mikami; Takeshi Maeyama; Yoshifumi Hoshide; Ryuichi Sakamoto; Shoji Sato; Naotoshi Okuda; Tetsuro Sato; Hiroshi Takemiya; Kimiaki Saito

2014-01-01T23:59:59.000Z

38

Sharp shock model for propagating detonation waves  

SciTech Connect (OSTI)

Recent analyses of the reactive Euler equations have led to an understanding of the effect of curvature on an underdriven detonation wave. This advance can be incorporated into an improved sharp shock model for propagating detonation waves in hydrodynamic calculations. We illustrate the model with two simple examples: time dependent propagation of a diverging detonation wave in 1-D, and the steady 2-D propagation of a detonation wave in a rate stick. Incorporating this model into a 2-D front tracking code is discussed. 20 refs., 3 figs.

Bukiet, B.; Menikoff, R.

1989-01-01T23:59:59.000Z

39

Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study  

E-Print Network [OSTI]

carbon monoxide (CO), nitrogen dioxide (NO 2 ), nitrogeninfrared; NO 2 : Nitrogen dioxide; NO x : Nitrogen oxides; OLack of effect of nitrogen dioxide exposure on heart rate

2013-01-01T23:59:59.000Z

40

Utility Rate | OpenEI Community  

Open Energy Info (EERE)

Utility Rate Utility Rate Home > Utility Rate > Posts by term > Utility Rate Content Group Activity By term Q & A Feeds Term: developer Type Term Title Author Replies Last Post sort icon Blog entry developer Utility Rates API Version 2 is Live! Sfomail 17 May 2013 - 11:14 Discussion developer Utility rate change propagation is now much faster Rmckeel 1 21 Mar 2013 - 09:11 Blog entry developer OpenEI maintenance March 8-9, 2013 Rmckeel 8 Mar 2013 - 14:23 Blog entry developer Semantic Mediawiki Semantic Forms update Rmckeel 22 Oct 2012 - 07:23 Discussion developer Increasing ask query limit Rmckeel 1 28 Jun 2012 - 14:35 Groups Menu You must login in order to post into this group. Recent content FYI, OpenEI now accommodates t... Very useful information. Thank...

Note: This page contains sample records for the topic "rate change propagation" 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

Intervention Completion Rates among African Americans in a Randomized Effectiveness Trial for Diet and Physical Activity Changes  

Science Journals Connector (OSTI)

...participatory research. Intervention completion rates were determined based...differences in intervention completion based on randomization to...sociodemographic factors, or body mass index (BMI) in the total sample...significantly with intervention completion within study groups. Among...

Chanita Hughes Halbert; Scarlett Bellamy; Vanessa Briggs; Marjorie Bowman; Ernestine Delmoor; Jerry C. Johnson; Shiriki Kumanyika; Cathy Melvin; Joseph Purnell; Rodney Rogers; and Benita Weathers

2014-07-01T23:59:59.000Z

42

Explosion propagation in inert porous media  

Science Journals Connector (OSTI)

...the density, c the heat capacity and k the thermal...important in porous media combustion because it represents...voids and the rate of heat loss to the porous medium...velocities for a propagating combustion wave: the planar laminar...detonation velocity. For hydrocarbon fuel-air mixtures...

2012-01-01T23:59:59.000Z

43

Economic Impact Analysis of Exchange Rate, RFS2, and Farm Program Support Changes on the U.S. Crop Sector  

E-Print Network [OSTI]

/subsidies for U.S. agriculture (Young and Westcott 1996; Arha et al 2006; Darrat 1988; Normile et al 2004). The change may be represented in a recent budget plan proposed by House Budget Committee Chairperson Paul Ryan (‘Ryan Proposal’) in March 2012... portions of price subsidies. The 1996 Farm Bill legislation moved toward a more market-oriented direction by reducing income support measures and ending supply management programs (Young and Westcott 1996). Dmitri, Effland, and Conklin (2005) also...

Rhew, Chanhee

2014-05-27T23:59:59.000Z

44

Elevated temperature crack propagation  

SciTech Connect (OSTI)

This paper is a summary of two NASA contracts on high temperature fatigue crack propagation in metals. The first evaluated the ability of fairly simple nonlinear fracture parameters to correlate crack propagation. Hastelloy-X specimens were tested under isothermal and thermomechanical cycling at temperatures up to 980 degrees C (1800 degrees F). The most successful correlating parameter was the crack tip opening displacement derived from the J-integral. The second evaluated the ability of several path-independent integrals to correlate crack propagation behavior. Inconel 718 specimens were tested under isothermal, thermomechanical, temperature gradient, and creep conditions at temperatures up to 650 degrees C (1200 degrees F). The integrals formulated by Blackburn and by Kishimoto correlated the data reasonably well under all test conditions.

Orange, T.W.

1994-02-01T23:59:59.000Z

45

Propagation of Ornamental Plants.  

E-Print Network [OSTI]

is well filled with roots. In the other types of layering, select shooi 1 of young growth that bend easily. It usuall: is advisable to wound the stem where it is covered with soil. This cut limits free movemen: ! of food materials and induces root... cuttings. lecent research findings have taken much of uesswork out of this type of propagation t now can be done for many plants with rlrative ease by the home gardener. Some alants remain difficult to propagate by any ' method, but most...

DeWerth, A. F.

1955-01-01T23:59:59.000Z

46

Generation of multi-photon entanglement by propagation and detection  

E-Print Network [OSTI]

We investigate the change of entanglement of photons due to propagation. We find that post-selected entanglement in general varies by propagation and, as a consequence, states with maximum bi- and tri-partite entanglement can be generated from propagation of unentangled photons. We generalize the results to n photons and show that entangled states with permutation symmetry can be generated from propagation of unentangled states. Generation of n-photon GHZ states is discussed as an example of a class of states with the desired symmetry.

H. Hossein-Nejad; R. Stock; D. F. V. James

2009-03-02T23:59:59.000Z

47

Improved agreement of foot segmental power and rate of energy change during gait: Inclusion of distal power terms and use of three-dimensional models  

Science Journals Connector (OSTI)

Traditional models used to calculate foot segmental power have yielded poor agreement between foot power and the rate of energy change during the stance phase of gait and limited the applicability of foot segmental power analyses to swing phase only. The purpose of this study was to improve the agreement of foot segemental power and rate of energy change by using more inclusive models to calculate foot segmental power and energy. The gait of 15 adult subjects was studied and models were used to calculate foot segmental power that included either the proximal terms only (Model P, the most common method in the literature) or both proximal and distal terms (Model PD, a mathematically complete model). Power and energy terms were computed in to ways, from sagittal plane vector components only (two-dimensional condition) and from complete three-dimensional components (three-dimensional condition). Results revealed that the more inclusive the model, the higher the agreement of foot power and rate of energy change. During stance phase, Model P produced poor agreement (rc = 0.108) for both two-dimensional and three-dimensional conditions, Model PD-2D yielded higher agreement (rc = 0.645), and Model PD-3D exhibited nearly perfect agreement (rc = 0.956). The advantages of a segmental power analysis include the ability to identify the mechanisms of energy transfer into and out of the foot during movement. The results of this study suggest that foot power analyses are valid when using Model PD-3D to describe foot function during locomotion.

Karen Lohmann Siegel; Thomas M. Kepple; Graham E. Caldwell

1996-01-01T23:59:59.000Z

48

Studies in the Respiratory and Carbohydrate Metabolism of Plant Tissues. IV. The Relation between the Rate of Carbon Dioxide Production in Potato Tubers in Air Following Anaerobic Conditions, and the Accompanying Changes in Lactic Acid Content and Sugar Concentration  

Science Journals Connector (OSTI)

...Following Anaerobic Conditions, and the Accompanying Changes in Lactic Acid Content and Sugar Concentration J. Barker A. F. El Saifi In part III of this series data were presented for the changes in air following periods of anaerobiosis in the rate of production...

1953-01-01T23:59:59.000Z

49

Investigating the Effect of Oil Saturation on Acid Propagation during Matrix Acidization of Carbonate Rocks  

E-Print Network [OSTI]

The existence of an optimum injection rate for wormhole propagation, and face dissolution at low injection rates during matrix acidizing are well established. However, little has been documented that describes how the presence of residual oil...

Kumar, Rahul Pradeep

2014-01-02T23:59:59.000Z

50

Instantaneous information propagation in free flow, synchronized flow, stop-and-go  

E-Print Network [OSTI]

to propagate in a traffic system under certain traffic conditions, penetration rate of equipped cars range and penetration rate for unidirectional roads, bi-directional roads, and road networks. In [6

Mease, Kenneth D.

51

Determination of time-course change rate for arterial xenon using the time course of tissue xenon concentration in xenon-enhanced computed tomography  

SciTech Connect (OSTI)

In calculating tissue blood flow (TBF) according to the Fick principle, time-course information on arterial tracer concentration is indispensable and has a considerable influence on the accuracy of calculated TBF. In TBF measurement by xenon-enhanced computed tomography (Xe-CT), nonradioactive xenon gas is administered by inhalation as a tracer, and end-tidal xenon is used as a substitute for arterial xenon. There has been the assumption that the time-course change rate for end-tidal xenon concentration (Ke) and that for arterial xenon concentration (Ka) are substantially equal. Respiratory gas sampling is noninvasive to the patient and Ke can be easily measured by exponential curve fitting to end-tidal xenon concentrations. However, it is pointed out that there would be a large difference between Ke and Ka in many cases. The purpose of this work was to develop a method of determining the Ka value using the time course of tissue xenon concentration in Xe-CT. The authors incorporated Ka into the Kety autoradiographic equation as a parameter to be solved, and developed a method of least-squares to obtain the solution for Ka from the time-course changes in xenon concentration in the tissue. The authors applied this method of least-squares to the data from Xe-CT abdominal studies performed on 17 patients; the solution for Ka was found pixel by pixel in the spleen, and its Ka map was created for each patient. On the one hand, the authors obtained the average value of the Ka map of the spleen as the calculated Ka (Ka{sub calc}) for each patient. On the other hand, the authors measured Ka (Ka{sub meas}) using the time-course changes in CT enhancement in the abdominal aorta for each patient. There was a good correlation between Ka{sub calc} and Ka{sub meas} (r=0.966, P<0.0001), and these two Ka values were close to each other (Ka{sub calc}=0.935xKa{sub meas}+0.089). This demonstrates that Ka{sub calc} would be close to the true Ka value. Accuracy of TBF by Xe-CT can be improved with use of the average value of the Ka map of an organ like the spleen that has a single blood supply (only arterial inflow)

Sase, Shigeru; Takahashi, Hideaki; Ikeda, Hiroki; Kobayashi, Minoru; Matsumoto, Nobuyuki; Suzuki, Michihiro [Anzai Medical Co., Ltd., 3-9-15 Nishi-Shinagawa, Shinagawa-ku, Tokyo 141-0033 (Japan); Department of Internal Medicine, Division of Gastroenterology and Hepatology, School of Medicine, St. Marianna University, 2-16-1 Miyamae-ku, Sugao, Kawasaki 216-5811 (Japan)

2008-06-15T23:59:59.000Z

52

On the propagation of a coupled saturation and pressure front  

SciTech Connect (OSTI)

Using an asymptotic technique, valid for a medium with smoothly varying heterogeneity, I derive an expression for the velocity of a propagating, coupled saturation and pressure front. Due to the nonlinearity of the governing equations, the velocity of the propagating front depends upon the magnitude of the saturation and pressure changes across the front in addition to the properties of the medium. Thus, the expression must be evaluated in conjunction with numerical reservoir simulation. The propagation of the two-phase front is governed by the background saturation distribution, the saturation-dependent component of the fluid mobility, the porosity, the permeability, the capillary pressure function, the medium compressibility, and the ratio of the slopes of the relative permeability curves. Numerical simulation of water injection into a porous layer saturated with a nonaqueous phase liquid indicates that two modes of propagation are important. The fastest mode of propagation is a pressure-dominated disturbance that travels through the saturated layer. This is followed, much later, by a coupled mode with a large saturation change. These two modes are also observed in a simulation using a heterogeneous porous layer. A comparison between the propagation times estimated from the results of the numerical simulation and predictions from the asymptotic expression indicates overall agreement.

Vasco, D. W.

2010-12-01T23:59:59.000Z

53

Slanted-wall beam propagation.  

SciTech Connect (OSTI)

We present a new algorithm for wide-angle propagation through a general class of optical-waveguide structures defined by dielectric interfaces that may be slanted with respect to the direction of propagation. No regularity of the structure shapes is assumed, no coordinate transformations are employed, and the movement of each grid point between propagation steps is arbitrary within modest angular limitations. When used with an appropriate grid-generation algorithm, this method allows the modeling of an extremely wide variety of high-index-contrast waveguide structures, including meanders and tapers, with good phase accuracy and energy conservation.

Hadley, G. Ronald

2007-01-01T23:59:59.000Z

54

detonation rate  

Science Journals Connector (OSTI)

detonation rate, detonation velocity, velocity of detonation, V.O.D., detonating velocity, rate of detonation, detonating rate ? Detonationsgeschwindigkeit f

2014-08-01T23:59:59.000Z

55

The drop in the cosmic star formation rate below redshift 2 is caused by a change in the mode of gas accretion and by active galactic nucleus feedback  

Science Journals Connector (OSTI)

......cosmic star formation rate below redshift 2 is caused...Institute for Extraterrestrial Physics, Giessenbachstrabetae...cosmic star formation rate is observed to drop sharply...of the gas that did not pass through a virial shock...simulations to show that the rate at which the gas accretes......

Freeke van de Voort; Joop Schaye; C. M. Booth; Claudio Dalla Vecchia

2011-08-11T23:59:59.000Z

56

Propagating buckles in corroded pipelines  

Science Journals Connector (OSTI)

Rigid–plastic solutions for the steady-state, quasi-static buckle propagation pressure in corroded pipelines are derived and compared to finite element predictions (ABAQUS). The corroded pipeline is modeled as an infinitely long, cylindrical shell with a section of reduced thickness that is used to describe the corrosion. A five plastic hinge mechanism is used to describe plastic collapse of the corroded pipeline. Closed-form expressions are given for the buckle propagation pressure as a function of the amount of corrosion in an X77 steel pipeline. Buckles that propagate down the pipeline are caused by either global or snap-through buckling, depending on the amount of corrosion. Global buckling occurs when the angular extent of the corrosion is greater than 90°. When the angular extent is less than 90° and the corrosion is severe, snap-through buckling takes place. The buckle propagation pressure and the corresponding collapse modes also compare well to finite element predictions.

Michelle S. Hoo Fatt; Jianghong Xue

2001-01-01T23:59:59.000Z

57

Third Annual Report: 2006 Pre-Construction Eelgrass Monitoring and Propagation for King County Outfall Mitigation  

SciTech Connect (OSTI)

King County proposes to build a new sewer outfall discharging to Puget Sound near Point Wells, Washington. Construction is scheduled for 2008. The Point Wells site was selected to minimize effects on the nearshore marine environment, but unavoidable impacts to eelgrass (Zostera marina) beds are anticipated during construction. To mitigate for these impacts and prepare for post-construction restoration, King County began implementation of a multi-year eelgrass monitoring and restoration program in 2004, with the primary goal of returning intertidal and shallow subtidal habitat and eelgrass to pre-construction conditions. Major program elements are a) pre-construction monitoring, i.e., documenting initial eelgrass conditions and degree of fluctuation over 5 years prior to construction, b) eelgrass transplanting, including harvesting, offsite propagating and stockpiling of local plantstock, and post-construction planting, and c) post-construction monitoring. The program is detailed in the Eelgrass Restoration and Biological Resources Implementation Workplan (King County 2006). This report describes calendar year 2006 pre-construction activities conducted by Pacific Northwest National Laboratory (PNNL) in support of King County. Activities included continued propagation of eelgrass shoots and monitoring of the experimental harvest plots in the marine outfall corridor area to evaluate recovery rates relative to harvest rates. Approximately 1500 additional shoots were harvested from the marine outfall corridor in August 2006 to supplement the plants in the propagation tank at the PNNL Marine Sciences Laboratory in Sequim, Washington, bringing the total number of shoots to 4732. Eelgrass densities were monitored in the five experimental harvest plots established in the marine outfall corridor. Changes in eelgrass density were evaluated in year-to-year comparisons with initial harvest rates. Net eelgrass density decreased from 2004 post-harvest to 2006 in all plots, despite density increases observed in 2005 in some plots and at some harvest rates. Eelgrass densities within individual subplots were highly variable from year to year, and the change in density in any interannual period did not correlate to the initial 2004 harvest rate. Continued monitoring should help project managers determine an optimum harvest rate that supports rapid recovery of donor eelgrass beds.

Woodruff, Dana L.; Southard, Susan S.; Cullinan, Valerie I.; Kohn, Nancy P.; Anderson, Michael G.; Vavrinec, John

2007-02-01T23:59:59.000Z

58

Recombination and propagation of quasiparticles in cuprate superconductors  

SciTech Connect (OSTI)

Rapid developments in time-resolved optical spectroscopy have led to renewed interest in the nonequilibrium state of superconductors and other highly correlated electron materials. In these experiments, the nonequilibrium state is prepared by the absorption of short (less than 100 fs) laser pulses, typically in the near-infrared, that perturb the density and energy distribution of quasiparticles. The evolution of the nonequilibrium state is probed by time resolving the changes in the optical response functions of the medium that take place after photoexcitation. Ultimately, the goal of such experiments is to understand not only the nonequilibrium state, but to shed light on the still poorly understood equilibrium properties of these materials. We report nonequilibrium experiments that have revealed aspects of the cup rates that have been inaccessible by other techniques. Namely, the diffusion and recombination coefficients of quasiparticles have been measured in both YBa{sub 2}Cu{sub 3}O{sub 6.5} and Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+x} using time-resolved optical spectroscopy. Dependence of these measurements on doping, temperature and laser intensity is also obtained. To study the recombination of quasiparticles, we measure the change in reflectivity {Delta}R which is directly proportional to the nonequilibrium quasiparticle density created by the laser. From the intensity dependence, we estimate {beta}, the inelastic scattering coefficient and {gamma}{sub th} thermal equilibrium quasiparticle decay rate. We also present the dependence of recombination measurements on doping in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+x}. Going from underdoped to overdoped regime, the sign of {Delta}R changes from positive to negative right at the optimal doping. This is accompanied by a change in dynamics. The decay of {Delta}R stops being intensity dependent exactly at the optimal doping. We provide possible interpretations of these two observations. To study the propagation of quasiparticles, we interfered two laser pulses to introduce a spatially periodic density of quasiparticles. Probing the evolution of the initial density through space and time yielded the quasiparticle diffusion coefficient, and both inelastic and elastic scattering rates. Measured diffusion coefficient suggests that the quasiparticles induced by the laser occupy primarily states near the antinodal regions of the Brillouin zone.

Gedik, Nuh

2004-05-20T23:59:59.000Z

59

Surface Ion Cyclotron Waves Propagating Across an External Magnetic Field  

SciTech Connect (OSTI)

Properties of ordinary polarized surface ion cyclotron waves (SICW) propagating along boundary of non-uniform plasma at harmonics of ion cyclotron frequency are studied. Analytical expressions for eigen frequency and damping rates determined by collision and collisionless mechanisms are derived. Influence of plasma waveguide system on spatial distribution of the waves' field and power flow is examined both analytically and numerically.

Girka, Volodymyr O.; Girka, Igor O.; Klyzhka, Anton V.; Pavlenko, Ivan V. [Kharkiv 'Karazin' National University, Department of Physics and Technology, Svobody sq., 4, Kharkiv, 61077 (Ukraine)

2009-11-26T23:59:59.000Z

60

Error propagation and scaling for tropical forest biomass estimates  

Science Journals Connector (OSTI)

...propagation and scaling for tropical forest biomass estimates Jerome Chave 1 * Richard Condit...34002-0948, USA The above-ground biomass (AGB) of tropical forests is a crucial...inferences about long-term changes in biomass stocks, it is essential to know the uncertainty...

2004-01-01T23:59:59.000Z

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


61

The Propagation of Ornamental Plants.  

E-Print Network [OSTI]

of the 8-inch pot and pack the rooting medium in between the two pots. Note: If vermiculite is used, fill this space, but do not pack it. Water the medium in well with water containing a few drops of a wetting agent. Then stick cuttings in concentric... ready for planting in permanent location. Materials required for self-watering propagator. Make the cutting. Preparation of self-watering propagator. Insert cutting into rooting medium. :?-de+d self-watering -.:sqgotor filled with cuttings...

DeWerth, A. F.

1970-01-01T23:59:59.000Z

62

About the Ratings  

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

2008 Ratings Changes 2008 Ratings Changes EPA's "New" Fuel Economy Ratings Video about EPA's New Fuel Economy Ratings Windows Media Video (6.8 MB) Quicktime Video (7.8 MB) Text Version EPA changed the way it estimates fuel economy starting with the 2008 model year. This "new" way of estimating fuel economy supplements the previous method by incorporating the effects of Faster speeds and acceleration Air conditioner use Colder outside temperatures What else do I need to know about the "new" ratings? The tests lower MPG estimates for most vehicles. View old/new MPG ratings for a specific vehicle The actual mileage you get will still vary based on your driving habits, traffic conditions, and other factors. All MPG estimates in Find-a-Car have been converted to the new

63

Fourth Annual Report: 2007 Pre-Construction Eelgrass Monitoring and Propagation for King County Outfall Mitigation  

SciTech Connect (OSTI)

King County proposes to build a new sewer outfall discharging to Puget Sound near Point Wells, Washington. Construction is scheduled for 2008. The Point Wells site was selected to minimize effects on the nearshore marine environment, but unavoidable impacts to eelgrass (Zostera marina) beds are anticipated during construction. To mitigate these impacts and prepare for post-construction restoration, King County began implementing a multiyear eelgrass monitoring and restoration program in 2004, with the primary goal of returning intertidal and shallow subtidal habitat and eelgrass to pre-construction conditions. Major program elements related to eelgrass are (a) pre-construction monitoring, i.e., documenting initial eelgrass conditions and degree of fluctuation over 5 years prior to construction, (b) eelgrass transplanting, including harvesting, offsite propagating, and stockpiling of local plants for post-construction planting, and (c) post-construction planting and subsequent monitoring. The program is detailed in the Eelgrass Restoration and Biological Resources Implementation Workplan (King County 2006). This report describes calendar year 2007 pre-construction activities conducted by Pacific Northwest National Laboratory (PNNL) for King County. Activities included continued propagation of eelgrass shoots at the PNNL Marine Sciences Laboratory (MSL) in Sequim, Washington, and monitoring of the experimental harvest plots in the marine outfall corridor area to evaluate recovery rates relative to harvest rates. In addition, 490 eelgrass shoots were also harvested from the Marine Outfall Corridor in July 2007 to supplement the plants in the propagation tank at the MSL, bringing the total number of shoots to 1464. Eelgrass densities were monitored in four of five experimental harvest plots established in the Marine Outfall Corridor. Changes in eelgrass density were evaluated in year-to-year comparisons with initial harvest rates. A net increase in eelgrass density from 2004 post-harvest to 2007 was observed in all plots, despite density decreases observed in 2006 in all plots and at most harvest rates. Eelgrass densities within individual subplots were highly variable from year to year, and the change in density in any interannual period was not related to initial 2004 harvest rate. Harvest rates of neighboring subplots did not appear to affect subplot eelgrass density (Woodruff et al. 2007). Three years post-harvest, eelgrass shoot densities were not significantly different from pre-harvest shoot densities at any harvest level. Additional plans are being discussed with King County to harvest all eelgrass from the construction corridor and hold in the propagation tanks at the MSL for post-construction planting. Under this plan, plants that would have been lost to construction will be held offsite until construction is completed. This strategy reduces and possibly eliminates the need to harvest eelgrass from donor beds located south of the construction area, allowing them to remain undisturbed. However, if eelgrass is harvested from donor beds, the monitoring of eelgrass growth at different harvest rates should help determine an optimum harvest rate that supports rapid recovery of donor eelgrass beds.

Woodruff, Dana L.; Kohn, Nancy P.; Cullinan, Valerie I.; Southard, Susan S.; Vavrinec, John

2007-10-04T23:59:59.000Z

64

Thermo-Poroelastic Fracture Propagation Modeling with Displacement Discontinuity Boundary Element Method  

E-Print Network [OSTI]

. The influence of pore pressure and temperature changes on the fracture propagation length and path, as well as on stress and pore pressure distribution near wellbores and fractures, was considered in isotropic and homogeneous rock formations. The BEM used...

Chun, Kwang Hee

2013-08-01T23:59:59.000Z

65

On Damage Propagation in a Soft Low-Permeability Formation  

SciTech Connect (OSTI)

In this presentation, we develop a mathematical model of fluid flow with changing formation properties. The modification of formation permeability is caused by development of a connected system of fractures. As the fluids are injected or withdrawn from the reservoir, the balance between the pore pressure and the geostatic formation stresses is destroyed. If the strength of the rock is not sufficient to accommodate such an imbalance, the cementing bonds between the rock grains become broken. Such a process is called damage propagation. The micromechanics and the basic mathematical model of damage propagation have been studied in [7]. The theory was further developed in [3], where new nonlocal damage propagation model has been studied. In [2] this theory has been enhanced by incorporation of the coupling between damage propagation and fluid flow. As it has been described above, the forced fluid flow causes changes in the rock properties including formation permeability. At the same time, changing permeability facilitates fluid flow and, therefore, enhances damage propagation. One of the principle concepts introduced in [3] and [2] is the characterization of damage by a dimensionless ratio of the number of broken bonds to the number of bonds in pristine rock per unit volume. It turns out, that the resulting mathematical model consist of a system of two nonlinear parabolic equations. As it has been shown in [6] using modeling of micromechanical properties of sedimentary rocks, at increasing stress the broken bonds coalesce into a system of cracks surrounding practically intact matrix blocks. These blocks have some characteristic size and a regular geometry. The initial microcracks expand, interact with each other, coalesce and form bigger fractures, etc. Therefore, as the damage is accumulated, the growing system of connected fractures determines the permeability of the reservoir rock. Significant oil deposits are stored in low-permeability soft rock reservoirs such as shales, chalks and diatomites [9, 10]. The permeability of the pristine formation matrix in such reservoirs is so low that oil production was impossible until hydraulic fracturing was applied. For development of correct production policy, it is very significant to adequately understand and predict how fast and to what extend the initial damage induced by drilling and hydrofracturing will propagate into the reservoir. The importance of fractures for rock flow properties is a well-established and recognized fact [4, 9, 5]. Different conceptual models have been developed [8]. In this study, we propose a damage propagation model based on a combination of the model of double-porosity and double-permeability medium [4] and a modification of the model of damage propagation developed in [2].

Silin, D.; Patzek, T.; Barenblatt, G.I.

2003-11-18T23:59:59.000Z

66

Generating propagators for finite set constraints  

Science Journals Connector (OSTI)

Ideally, programming propagators as implementations of constraints should be an entirely declarative specification process for a large class of constraints: a high-level declarative specification is automatically translated into an efficient propagator. ...

Guido Tack; Christian Schulte; Gert Smolka

2006-09-01T23:59:59.000Z

67

Nonlinear Saturation of Vertically Propagating Rossby Waves  

E-Print Network [OSTI]

The interaction between vertical Rossby wave propagation and wave breaking is studied in the idealized context of a beta-plane channel model. Considering the problem of propagation through a uniform zonal flow in an ...

Giannitsis, Constantine

68

Rate Schedules  

Broader source: Energy.gov [DOE]

One of the major responsibilities of Southeastern is to design, formulate, and justify rate schedules. Repayment studies prepared by the agency determine revenue requirements and appropriate rate...

69

Stochastic model of MHF propagation  

SciTech Connect (OSTI)

A Monte Carlo model of the propagation of a hydraulic fracture through an inhomogeneous medium was constructed for use in the Western Gas Sands Project. The region through which the two-dimensional fracture propagates has a random variation of minimum in situ stress imposed upon it. By dividing the fracture into a number of sectors, the stress-intensity factor of each sector tip is calculated and compared with the fracture toughness at that point. The model produces an irregular fracture profile and fluctuations in the bottomhole fluid pressure. The irregularity in the profile is quite marked for the case of a stress distribution with mean 5000 psi and standard deviation 100 psi imposed randomly on a grid of resolution 40 feet. Many Monte Carlo trials will lead to a statistical probability of achieving a certain fracture radius (or wing length) and provide a relation between magnitude of pressure fluctuations and variations of minimum in situ stress.

Palmer, I.D.; Carroll, H.B. Jr.

1980-06-01T23:59:59.000Z

70

Atmospheric propagation of THz radiation.  

SciTech Connect (OSTI)

In this investigation, we conduct a literature study of the best experimental and theoretical data available for thin and thick atmospheres on THz radiation propagation from 0.1 to 10 THz. We determined that for thick atmospheres no data exists beyond 450 GHz. For thin atmospheres data exists from 0.35 to 1.2 THz. We were successful in using FASE code with the HITRAN database to simulate the THz transmission spectrum for Mauna Kea from 0.1 to 2 THz. Lastly, we successfully measured the THz transmission spectra of laboratory atmospheres at relative humidities of 18 and 27%. In general, we found that an increase in the water content of the atmosphere led to a decrease in the THz transmission. We identified two potential windows in an Albuquerque atmosphere for THz propagation which were the regions from 1.2 to 1.4 THz and 1.4 to 1.6 THz.

Wanke, Michael Clement; Mangan, Michael A.; Foltynowicz, Robert J.

2005-11-01T23:59:59.000Z

71

Rates - WAPA-137 Rate Order  

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

WAPA-137 Rate Order WAPA-137 Rate Order 2009 CRSP Management Center Customer Rates Second Step Presentation from the June 25, 2009, Customer Meeting Handout Materials from the June 25, 2009, Customer Meeting Customer Comment Letters ATEA CREDA Farmington ITCA AMPUA Rate Adjustment Information The second step of WAPA-137 SLCA/IP Firm Power, CRSP Transmission and Ancillary Services rate adjustment. FERC Approval of Rate Order No. WAPA-137 Notice Of Filing for Rate Order No. WAPA-137 Published Final FRN for Rate Order No. WAPA-137 Letter to Customers regarding the published Notice of Extension of Public Process for Rate Order No. WAPA-137 Published Extension of Public Process for Rate Order No. WAPA-137 FRN Follow-up Public Information and Comment Forum Flier WAPA-137 Customer Meetings and Rate Adjustment Schedule

72

Propagation and structure of planar streamer fronts  

Science Journals Connector (OSTI)

Streamers are a mode of dielectric breakdown of a gas in a strong electric field: A sharp nonlinear ionization wave propagates into a nonionized gas, leaving a nonequilibrium plasma behind. The ionization avalanche in the tip of the wave is due to free electrons being accelerated in the strong field and ionizing the gas by impact. This chain reaction deeper in the wave is suppressed by the generated free charges screening the field. Simulations of streamers show two widely separated spatial scales: the width of the charged layer where the electron density gradients and the ionization rate are very large [O(?m)], and the width of the electrically screened, finger-shaped, and ionized region [O(mm)]. We thus recently have suggested analyzing first the properties of the charge-ionization layer on the inner scale on which it is almost planar, and then understanding the streamer shape on the outer scale as the motion of an effective interface, as is done in other examples of nonequilibrium pattern formation. The first step thus is the analysis of the inner dynamics of planar streamer fronts. For these, we resolve the long-standing question about what determines the front speed, by applying the modern insights of pattern formation to the streamer equations used in the recent simulations. These include field-driven impact ionization, electron drift and diffusion, and the Poisson equation for the electric field. First, in appropriately chosen dimensionless units only one parameter remains to characterize the gas, the dimensionless electron diffusion constant D; for typical gases under normal conditions D?0.1–0.3. Then we determine essentially all relevant properties of planar streamer fronts. Technically, we identify the propagation of streamer fronts as an example of front propagation into unstable states. In terms of the marginal stability scenario we then find that the front approached asymptotically starting from any sufficiently localized initial condition (the ``selected front'') is the steepest uniformly translating front solution, which is physical and stable. Negatively charged fronts are selected by linear marginal stability, which allows us to derive their velocity analytically. Positively charged fronts can only propagate due to electron diffusion against the electric field; as a result their behavior is singular in the limit of D?0. For D?1, these fronts are selected by nonlinear marginal stability and we have to apply numerical methods for predicting the selected front velocity. For larger D, linear marginal stability applies and the velocity can be determined analytically. Numerical integrations of the temporal evolution of planar fronts out of localized initial conditions confirm all our analytical and numerical predictions for the selection. Finally, our general predictions for the selected front velocity and for the degree of ionization of the plasma are in semiquantitative agreement with recent numerical solutions of three-dimensional streamer propagation. This gives credence to our suggestion that the front analysis on the inner (?m) scale yields the moving boundary conditions for a moving ``streamer interface,'' whose pattern formation is governed by the evolution of the fields on the outer (mm) scale.

Ute Ebert, Wim van Saarloos, and Christiane Caroli

1997-02-01T23:59:59.000Z

73

Effective Rate Period  

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

Fiscal Year 2014 Fiscal Year 2014 Effective Rate Period As of Beginning of the FY 10/01/2013 - 09/30/2014 Mid-Year Changes (if applicable) 10/01/2013 - 09/30/2014 Power Rates Annual Revenue Requirement Rate Schedule Power Revenue Requirement $73,441,557 CV-F13 Base Resource Revenue Requirement $69,585,875 First Preference Revenue Requirement $3,855,682

74

Topology Change and the Propagation of Massless Fields  

E-Print Network [OSTI]

We analyse the massless wave equation on a class of two dimensional manifolds consisting of an arbitrary number of topological cylinders connected to one or more topological spheres. Such manifolds are endowed with a degenerate (non-globally hyperbolic) metric. Attention is drawn to the topological constraints on solutions describing monochromatic modes on both compact and non-compact manifolds. Energy and momentum currents are constructed and a new global sum rule discussed. The results offer a rigorous background for the formulation of a field theory of topologically induced particle production.

Jonathan Gratus; Robin W Tucker

1995-02-07T23:59:59.000Z

75

Simulating change propagation between product architecture and development organization  

E-Print Network [OSTI]

interrelated. However, little research has studied this relationship, and the need for a coherent model architecture, development organization and processes (Eppinger and Salminen, 2001; Meinadier, 2002). Other components development processes". Sosa (Sosa et al., 2003) studied the coupling of product architecture

Paris-Sud XI, Université de

76

On the extraction of laminar flame speed and Markstein length from outwardly propagating spherical flames  

SciTech Connect (OSTI)

Large discrepancies among the laminar flame speeds and Markstein lengths of methane/air mixtures measured by different researchers using the same constant-pressure spherical flame method are observed. As an effort to reduce these discrepancies, one linear model (LM, the stretched flame speed changes linearly with the stretch rate) and two non-linear models (NM I and NM II, the stretched flame speed changes non-linearly with the stretch rate) for extracting the laminar flame speed and Markstein length from propagating spherical flames are investigated. The accuracy and performance of the LM, NM I, and NM II are found to strongly depend on the Lewis number. It is demonstrated that NM I is the most accurate for mixtures with large Lewis number (positive Markstein length) while NM II is the most accurate for mixtures with small Lewis number (negative Markstein length). Therefore, in order to get accurate laminar flame speed and Markstein length from spherical flame experiments, different non-linear models should be used for different mixtures. The validity of the theoretical results is further demonstrated by numerical and experimental studies. The results of this study can be used directly in spherical flame experiments measuring the laminar flame speed and Markstein length. (author)

Chen, Zheng [State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Aerospace Engineering, College of Engineering, Peking University, Beijing 100871 (China)

2011-02-15T23:59:59.000Z

77

Rate schedule  

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

Firm Power Service Provided by Rate/Charges Firm Power Service Provided by Rate/Charges Rate/Charges Effective Through (or until superceded) Firm Sales (SLIP-F9) Composite Rate SLIP 29.62 mills/kWh 9/30/2015 Demand Charge SLIP $5.18/kW-month 9/30/2015 Energy Charge SLIP 12.19 mills/kWh 9/30/2015 Cost Recovery Charge (CRC) SLIP 0 mills/kWh 9/30/2015 Transmission Service Provided by Current Rates effective10/12 - 9/15 (or until superceded) Rate Schedule Effective Through Firm Point-to-Point Transmission (SP-PTP7) CRSP $1.14 per kW-month $13.69/kW-year $0.00156/kW-hour $0.04/kW-day $0.26/kW-week 10/1/2008-9/30/2015 Network Integration Transmission (SP-NW3) CRSP see rate schedule 10/1/2008-9/30/2015 Non-Firm Point-to-Point Transmission (SP-NFT6) CRSP see rate schedule 10/1/2008-9/30/2015 Ancillary Services Provided by Rate Rate Schedule

78

Slanted-wall beam propagation : erratum.  

SciTech Connect (OSTI)

Recently, a new algorithm for wide-angle beam propagation was reported that allowed grid points to move in an arbitrary fashion between propagation planes and was thus capable of modeling waveguides whose widths or centerlines varied with propagation distance. That algorithm was accurate and stable for TE polarization but unstable for wide-angle TM propagation. This deficiency has been found to result from an omission in one of the wide-angle terms in the derivation of the finite-difference equation and is remedied here, resulting in a complete algorithm accurate for both polarizations.

Hadley, G. Ronald

2009-01-01T23:59:59.000Z

79

Neural network construction via back-propagation  

SciTech Connect (OSTI)

A method is presented that combines back-propagation with multi-layer neural network construction. Back-propagation is used not only to adjust the weights but also the signal functions. Going from one network to an equivalent one that has additional linear units, the non-linearity of these units and thus their effective presence is then introduced via back-propagation (weight-splitting). The back-propagated error causes the network to include new units in order to minimize the error function. We also show how this formalism allows to escape local minima.

Burwick, T.T.

1994-06-01T23:59:59.000Z

80

New developments in the theory of flame propagation  

SciTech Connect (OSTI)

Two topics in combustion fluid mechanics are discussed. The first is a theory of the outward propagating spherical flame in the regime of well-developed hydrodynamic instability. In a qualitative agreement with experimental observations it is shown that the flame assumes a fractal-like wrinkled structure resulting in the overall burning rate acceleration. In contrast to hydrodynamically unstable flames, the expanding flame subject exclusively to the effect of diffusive instability does not indicate any disposition toward acceleration. The second topic concerns the dynamics of diffusively unstable flames subjected to radiative heat losses. At high enough heat losses the flame breaks up into separate self-propagating cap-like flamelets while a significant portion of the fuel remains unconsumed.

Sivashinsky, G.I. [City College of the City Univ. of New York, NY (United States)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Heat pulse propagation in chaotic 3-dimensional magnetic fields  

E-Print Network [OSTI]

Heat pulse propagation in $3$-D chaotic magnetic fields is studied by solving the parallel heat transport equation using a Lagrangian-Green's function (LG) method. The LG method provides an efficient and accurate technique that circumvents limitations of finite elements and finite difference methods. The main two problems addressed are: (i) The dependence of the radial transport on the magnetic field stochasticity (controlled by the amplitude of the perturbation, $\\epsilon$); and (ii) The role of reversed shear configurations on pulse propagation. In all the cases considered there are no magnetic flux surfaces. However, radial transport is observed to depend strongly on $\\epsilon$ due to the presence of high-order magnetic islands and Cantori that act as quasi-transport barriers that preclude the radial penetration of heat pulses within physically relevant time scale. The dependence of the magnetic field connection length, $\\ell_B$, on $\\epsilon$ is studied in detail. The decay rate of the temperature maximum...

del-Castillo-Negrete, D

2014-01-01T23:59:59.000Z

82

Beam Propagation Method Using a [(p -1)/p] Pade Approximant of the Propagator  

E-Print Network [OSTI]

propagation method (BPM) is developed based on a direct approximation to the propagator using the [(p - 1)/p of the BPM. 1 Introduction The beam propagation method (BPM)1­4 is widely used in numerical simulation, the governing equation is a scalar Helmholtz equation. The BPM relies on approximating the Helmholtz equation

Lu, Ya Yan

83

Crack propagation in Hastelloy X  

SciTech Connect (OSTI)

The fatigue and creep crack growth rates of Hastelloy X were examined both in air and impure helium. Creep crack growth rate is higher in air and impure helium at 650/sup 0/C. Initial creep crack growth from the original sharp fatigue crack is by an intergranular mode of fracture. As the cracking accelerates at higher stress intensities, growth is by a mixed mode of both intergranular and transgranular fracture. Fatigue crack growth rate increases with increasing temperature and decreasing frequency for the range of stress intensities reported in the literature and is lower in impure helium than in air.

Weerasooriya, T.; Strizak, J.P.

1980-05-01T23:59:59.000Z

84

Propagating Belief Functions in AND-Trees  

E-Print Network [OSTI]

: . Open Access Version: . Propagating Belief Functions in AND-Trees† Rajendra P. Srivastava Professor of Accounting School of Business...'s Official Version: . Open Access Version: . 23 REFERENCES 1. Shenoy, P. P., and G. Shafer, Propagating Belief Functions using Local Computations, IEEE...

Srivastava, Rajendra P.; Shenoy, Prakash P.; Shafer, Glenn R.

1995-01-01T23:59:59.000Z

85

Initiation and propagation of coronal mass ejections  

E-Print Network [OSTI]

This paper reviews recent progress in the research on the initiation and propagation of CMEs. In the initiation part, several trigger mechanisms are discussed; In the propagation part, the observations and modelings of EIT waves/dimmings, as the EUV counterparts of CMEs, are described.

P. F. Chen

2007-12-21T23:59:59.000Z

86

Crack propagation driven by crystal growth  

SciTech Connect (OSTI)

Crystals that grow in confinement may exert a force on their surroundings and thereby drive crack propagation in rocks and other materials. We describe a model of crystal growth in an idealized crack geometry in which the crystal growth and crack propagation are coupled through the stress in the surrounding bulk solid. Subcritical crack propagation takes place during a transient period, which may be very long, during which the crack velocity is limited by the kinetics of crack propagation. When the crack is sufficiently large, the crack velocity becomes limited by the kinetics of crystal growth. The duration of the subcritical regime is determined by two non-dimensional parameters, which relate the kinetics of crack propagation and crystal growth to the supersaturation of the fluid and the elastic properties of the surrounding material.

A. Royne; Paul Meaking; A. Malthe-Sorenssen; B. Jamtveit; D. K. Dysthe

2011-10-01T23:59:59.000Z

87

Propagation of an atmospheric pressure plasma plume  

SciTech Connect (OSTI)

The ''plasma bullet'' behavior of atmospheric pressure plasma plumes has recently attracted significant interest. In this paper, a specially designed plasma jet device is used to study this phenomenon. It is found that a helium primary plasma can propagate through the wall of a dielectric tube and keep propagating inside the dielectric tube (secondary plasma). High-speed photographs show that the primary plasma disappears before the secondary plasma starts to propagate. Both plumes propagate at a hypersonic speed. Detailed studies on the dynamics of the plasma plumes show that the local electric field induced by the charges on the surface of the dielectric tube plays an important role in the ignition of the secondary plasma. This indicates that the propagation of the plasma plumes may be attributed to the local electric field induced by the charges in the bulletlike plasma volume.

Lu, X.; Xiong, Q.; Xiong, Z.; Hu, J.; Zhou, F.; Gong, W.; Xian, Y.; Zou, C.; Tang, Z.; Jiang, Z.; Pan, Y. [College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)

2009-02-15T23:59:59.000Z

88

Random matrix theory for underwater sound propagation  

Science Journals Connector (OSTI)

Ocean acoustic propagation can be formulated as a wave guide with a weakly random medium generating multiple scattering. Twenty years ago, this was recognized as a quantum chaos problem, and yet random matrix theory, one pillar of quantum or wave chaos studies, has never been introduced into the subject. The modes of the wave guide provide a representation for the propagation, which in the parabolic approximation is unitary. Scattering induced by the ocean's internal waves leads to a power-law random banded unitary matrix ensemble for long-range deep-ocean acoustic propagation. The ensemble has similarities, but differs, from those introduced for studying the Anderson metal-insulator transition. The resulting long-range propagation ensemble statistics agree well with those of full wave propagation using the parabolic equation.

K. C. Hegewisch; S. Tomsovic

2012-01-01T23:59:59.000Z

89

Fatigue and Creep Crack Propagation behaviour of Alloy 617 in the Annealed and Aged Conditions  

SciTech Connect (OSTI)

The crack propagation behaviour of Alloy 617 was studied under various conditions. Elevated temperature fatigue and creep-fatigue crack growth experiments were conducted at 650 and 800 degrees C under constant stress intensity (triangle K) conditions and triangular or trapezoidal waveforms at various frequencies on as-received, aged, and carburized material. Environmental conditions included both laboratory air and characteristic VHTR impure helium. As-received Alloy 617 displayed an increase in the crack growth rate (da/dN) as the frequency was decreased in air which indicated a time-dependent contribution component in fatigue crack propagation. Material aged at 650°C did not display any influence on the fatigue crack growth rates nor the increasing trend of crack growth rate with decreasing frequency even though significant microstructural evolution, including y’ (Ni3Al) after short times, occurred during aging. In contrast, carburized Alloy 617 showed an increase in crack growth rates at all frequencies tested compared to the material in the standard annealed condition. Crack growth studies under quasi-constant K (i.e. creep) conditions were also completed at 650 degrees C and a stress intensity of K = 40 MPa9 (square root)m. The results indicate that crack growth is primarily intergranular and increased creep crack growth rates exist in the impure helium environment when compared to the results in laboratory air. Furthermore, the propagation rates (da/dt) continually increased for the duration of the creep crack growth either due to material aging or evolution of a crack tip creep zone. Finally, fatigue crack propagation tests at 800 degrees C on annealed Alloy 617 indicated that crack propagation rates were higher in air than impure helium at the largest frequencies and lowest stress intensities. The rates in helium, however, eventually surpass the rates in air as the frequency is reduced and the stress intensity is decreased which was not observed at 650 degrees C.

Julian K. Benz; Richard N. Wright

2013-10-01T23:59:59.000Z

90

Fracture opening/propagation behavior and their significance on pressure-time records during hydraulic fracturing  

SciTech Connect (OSTI)

Hydraulic fracturing with constant fluid injection rate was numerically modeled for a pair of rectangular longitudinal fractures intersecting a wellbore in an impermeable rock mass, and numerical calculations have been performed to investigate the relations among the form of pressure-time curves, fracture opening/propagation behavior and permeability of the mechanically closed fractures. The results have shown that both permeability of the fractures and fluid injection rate significantly influence the form of the pressure-time relations on the early stage of fracture opening. Furthermore it has been shown that wellbore pressure during fracture propagation is affected by the pre-existing fracture length.

Takashi Kojima; Yasuhiko Nakagawa; Koji Matsuki; Toshiyuki Hashida

1992-01-01T23:59:59.000Z

91

Acoustic propagation characteristics of the estuarine salt wedge  

Science Journals Connector (OSTI)

The estuarine environment often hosts a salt wedge—a layer of denser seawater advected by the rising tide under fresh water discharged by the river. The nature of the stratification is a function of the tide's range and speed of advance river discharge volumetric flow rate and river mouth morphology. The competing effects of temperature and salinity on sound speed present the question: Is the salt wedge acoustically observable? Using temperature and salinity profiles collected in situ numerical results show that the salt wedge can impact acoustic propagation. Acoustically this environment consists of two isospeed layers separated by a thin gradient. While this three-layer very shallow water acoustic waveguide is typically dominated by high angle multipath propagation refraction occurring in the gradient layer allows some low-angle energy from near-surface sources to be trapped in the upper layer. Acoustic fluctuations observed at an upstream or downstream receiver depend upon the interaction between the advancing and receding tide and the river discharge which can include the presence of internal waves propagating along the top of the salt wedge.

2013-01-01T23:59:59.000Z

92

Acoustic propagation characteristics of the estuarine salt wedge  

Science Journals Connector (OSTI)

The estuarine environment often hosts a salt wedge-a layer of denser seawater advected by the rising tide under fresh water discharged by the river. The nature of the stratification is a function of the tide's range and speed of advance river discharge volumetric flow rate and river mouth morphology. The competing effects of temperature and salinity on sound speed present the question: Is the salt wedge acoustically observable? Using temperature and salinity profiles collected in situ numerical results show that the salt wedge can impact acoustic propagation. Acoustically this environment can be approximated by two isospeed layers separated by a thin gradient. While this three-layer very shallow water acoustic waveguide is typically dominated by high angle multipath propagation refraction occurring in the gradient layer allows low-angle energy from near-surface sources to be trapped above the gradient and creates a shadow zone below the gradient. Energy from near-bottom sources is refracted to higher angles and attenuated more quickly. Acoustic fluctuations observed at an upstream/downstream receiver depend upon the presence/absence of bedforms and the interaction between the advancing/receding tide and the river discharge which can include the presence of internal waves propagating along the top of the salt wedge.

D. B. Reeder

2013-01-01T23:59:59.000Z

93

E-Print Network 3.0 - acid oxidation rate Sample Search Results  

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

rates but also by the degree of graphite oxidation. We show that the edge-to-center penetration rate... Propagation during the Cross-Planar ... Source: Aksay, Ilhan A. -...

94

ACS calibration pipeline testing: error propagation  

E-Print Network [OSTI]

1 ACS calibration pipeline testing: error propagation Doug Van Orsow, Max Mutchler, Warren Hack files (see ISRs 99-03 "CALACS Operation and Implementation" by Hack and 99-04 "ACS calibra- tion

Sirianni, Marco

95

ULTRASHORT LASER PULSE PROPAGATION IN WATER  

E-Print Network [OSTI]

We simulate ultrashort pulse propagation through water by numerical methods, which is a kind of optical communication research. Ultrashort pulses have been known to have non Beer-Lambert behavior, whereas continuous waves (CW) obey the Beer...

Byeon, Joong-Hyeok

2010-01-16T23:59:59.000Z

96

Ultrashort Pulse Propagation in the Linear Regime  

E-Print Network [OSTI]

First, we investigate the Bouguer-Lambert-Beer (BLB) law as applied to the transmission of ultrashort pulses through water in the linear absorption regime. We present a linear theory for propagation of ultrashort laser pulses, and related...

Wang, Jieyu

2010-07-14T23:59:59.000Z

97

Finite Propagation Speeds in Spatially Extended Systems  

E-Print Network [OSTI]

. Normal and anoma- lous diffusive activity [MK00, KS05] is known to spread infinitely fast over space ultra-fast activity pulse propagation in solids and plasma [LW98, TC98, ML92]. To describe these effects

Hutt, Axel

98

The various manifestations of collisionless dissipation in wave propagation  

SciTech Connect (OSTI)

The propagation of an electrostatic wave packet inside a collisionless and initially Maxwellian plasma is always dissipative because of the irreversible acceleration of the electrons by the wave. Then, in the linear regime, the wave packet is Landau damped, so that in the reference frame moving at the group velocity, the wave amplitude decays exponentially with time. In the nonlinear regime, once phase mixing has occurred and when the electron motion is nearly adiabatic, the damping rate is strongly reduced compared to the Landau one, so that the wave amplitude remains nearly constant along the characteristics. Yet, we show here that the electrons are still globally accelerated by the wave packet, and in one dimension, this leads to a non local amplitude dependence of the group velocity. As a result, a freely propagating wave packet would shrink, and therefore, so would its total energy. In more than one dimension, not only does the magnitude of the group velocity nonlinearly vary, but also its direction. In the weakly nonlinear regime, when the collisionless damping rate is still significant compared to its linear value, the group velocity is directed towards the outside of the wave packet and tends to increase its transverse extent, while the opposite is true once the wave is essentially undamped. The impact of the nonlinear variation of the group velocity on the transverse size of the wave packet is quantified, and compared to that induced by the self-focussing due to wave front bowing.

Benisti, Didier; Morice, Olivier; Gremillet, Laurent [CEA, DAM, DIF, F-91297 Arpajon (France)

2012-06-15T23:59:59.000Z

99

Steady Propagation Speed for Ram Accelerators1 Joseph M. Powers2  

E-Print Network [OSTI]

Steady Propagation Speed for Ram Accelerators1 Joseph M. Powers2 , Antonio C´ardenas3 , and Matthew. Such a geometry better represents the physical characteristics of exper- imental ram accelerators, in which projectiles have been accelerated to over 3000 m s . The model employs finite rate chemistry with simple one

100

Long-Range Propagation of the Semidiurnal Internal Tide from the Hawaiian Ridge ZHONGXIANG ZHAO  

E-Print Network [OSTI]

, displacement, and energy. In spite of these contributions, the coherent mode-1 internal tide dominates is one intensive barotropic-to-baroclinic tide conversion re- gion, over which the energy loss rateLong-Range Propagation of the Semidiurnal Internal Tide from the Hawaiian Ridge ZHONGXIANG ZHAO

MacKinnon, Jennifer

Note: This page contains sample records for the topic "rate change propagation" 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

Direct Observations of Reaction Zone Structure in Propagating Detonations  

E-Print Network [OSTI]

of self-sustaining, cellular detonations propagating near the Chapman-Jouguet state in hydrogen- oxygen

Barr, Al

102

E-Print Network 3.0 - acoustic waves propagating Sample Search...  

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

propagating Search Powered by Explorit Topic List Advanced Search Sample search results for: acoustic waves propagating...

103

E-Print Network 3.0 - acoustic waves propagation Sample Search...  

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

propagation Search Powered by Explorit Topic List Advanced Search Sample search results for: acoustic waves propagation...

104

Absorption free superluminal light propagation in a three level pump-probe system  

E-Print Network [OSTI]

We investigate the dispersion and the absorption properties of a weak probe field in a three-level pump-probe atomic system. It is shown that the slope of dispersion changes from positive to negative just with the intensity of the coherent or indirect incoherent pumping fields. It is demonstrated that the absorption free superluminal light propagation is appeared in this system.

M. Mahmoudi; S. Worya Rabiei; L. Ebrahimi Zohravi; M. Sahrai

2007-11-21T23:59:59.000Z

105

Heat pulse propagation studies in TFTR  

SciTech Connect (OSTI)

The time scales for sawtooth repetition and heat pulse propagation are much longer (10's of msec) in the large tokamak TFTR than in previous, smaller tokamaks. This extended time scale coupled with more detailed diagnostics has led us to revisit the analysis of the heat pulse propagation as a method to determine the electron heat diffusivity, chi/sub e/, in the plasma. A combination of analytic and computer solutions of the electron heat diffusion equation are used to clarify previous work and develop new methods for determining chi/sub e/. Direct comparison of the predicted heat pulses with soft x-ray and ECE data indicates that the space-time evolution is diffusive. However, the chi/sub e/ determined from heat pulse propagation usually exceeds that determined from background plasma power balance considerations by a factor ranging from 2 to 10. Some hypotheses for resolving this discrepancy are discussed. 11 refs., 19 figs., 1 tab.

Fredrickson, E.D.; Callen, J.D.; Colchin, R.J.; Efthimion, P.C.; Hill, K.W.; Izzo, R.; Mikkelsen, D.R.; Monticello, D.A.; McGuire, K.; Bell, J.D.

1986-02-01T23:59:59.000Z

106

Error analysis for resonant thermonuclear reaction rates  

Science Journals Connector (OSTI)

A detailed presentation is given of estimating uncertainties in thermonuclear reaction rates for stellar nucleosynthesis involving narrow resonances, starting from random errors in measured or calculated resonance and nuclear level properties. Special attention is given to statistical matters such as probability distributions, error propagation, and correlations between errors. Interpretation of resulting uncertainties in reaction rates and the distinction between symmetric and asymmetric errors are also discussed. Computing reaction rate uncertainties is described. We give examples from explosive nucleosynthesis by hydrogen burning on light nuclei.

William J. Thompson; C. Iliadis

1999-01-01T23:59:59.000Z

107

Heat pulse propagation in chaotic 3-dimensional magnetic fields  

E-Print Network [OSTI]

Heat pulse propagation in $3$-D chaotic magnetic fields is studied by solving the parallel heat transport equation using a Lagrangian-Green's function (LG) method. The LG method provides an efficient and accurate technique that circumvents limitations of finite elements and finite difference methods. The main two problems addressed are: (i) The dependence of the radial transport on the magnetic field stochasticity (controlled by the amplitude of the perturbation, $\\epsilon$); and (ii) The role of reversed shear configurations on pulse propagation. In all the cases considered there are no magnetic flux surfaces. However, radial transport is observed to depend strongly on $\\epsilon$ due to the presence of high-order magnetic islands and Cantori that act as quasi-transport barriers that preclude the radial penetration of heat pulses within physically relevant time scale. The dependence of the magnetic field connection length, $\\ell_B$, on $\\epsilon$ is studied in detail. The decay rate of the temperature maximum, $\\langle T \\rangle_{max}(t)$, the time delay of the temperature response as function of the radius, $\\tau$, and the radial heat flux $\\langle {{\\bf q}\\cdot {\\hat e}_\\psi} \\rangle$, are also studied as functions of the magnetic field stochasticity and $\\ell_B$. In all cases, the scaling of $\\langle T \\rangle_{max}$ with $t$ transitions from sub-diffusive, $\\langle T \\rangle_{max} \\sim t^{-1/4}$, at short times ($\\chi_\\parallel t 10^5$). A strong dependence on $\\epsilon$ is also observed on $\\tau$ and $\\langle {{\\bf q}\\cdot {\\hat e}_\\psi} \\rangle$. The radial propagation of pulses in fully chaotic fields considerably slows down in the shear reversal region and, as a result, $\\tau$, in reversed shear configurations is an order of magnitude longer than the one in monotonic $q$-profiles.

D. del-Castillo-Negrete; D. Blazevski

2014-09-10T23:59:59.000Z

108

Analysis of Microwave Propagation In Plasma  

E-Print Network [OSTI]

Analysis of Microwave Propagation In Plasma Elaine Chung Advisor: Dr. John Rodgers #12;Plasma OverviewPlasma Overview · Plasma ­ ionized gas htt[p://www.noaa.gov http://www.photoeverywhere.co.uk http://sohowww.nascom.nasa.gov/ #12;Experimental Plasma · Formed by collisional excitation of gas in an electric field Electrode Non

Anlage, Steven

109

Information Propagation in the Bitcoin Network  

E-Print Network [OSTI]

Information Propagation in the Bitcoin Network Christian Decker ETH Zurich ­ Distributed Computing Group ­ www.disco.ethz.ch #12;What is Bitcoin? #12;What is Bitcoin? + #12;What is Bitcoin? + = #12;What 250 300 Price[USD] USD / Bitcoin exchange price 150$/BTC #12;What's it worth? Oct 2010 Feb 2011 Jun

110

Wave propagation in the magnetic sun  

E-Print Network [OSTI]

This paper reports on efforts to simulate wave propagation in the solar interior. Presented is work on extending a numerical code for constant entropy acoustic waves in the absence of magnetic fields to the case where magnetic fields are present. A set of linearized magnetohydrodynamic (MHD) perturbation equations has been derived and implemented.

T. Hartlep; M. S. Miesch; N. N. Mansour

2008-05-03T23:59:59.000Z

111

Modified Photon Propagator in the -Dominance Model  

Science Journals Connector (OSTI)

......by the insertion of a single p0 propa- gator, second graph of Fig. 1, and the first...term" inserted between photon propa- gators. Using the vector meson propagator given...peating this insertion process of p0 propa- gators and "photon mass terms" to con- struct......

R. A. Buchl; B. P. Nigam

1970-09-01T23:59:59.000Z

112

Detonation propagation in a high loss configuration  

SciTech Connect (OSTI)

This work presents an experimental study of detonation wave propagation in tubes with inner diameters (ID) comparable to the mixture cell size. Propane-oxygen mixtures were used in two test section tubes with inner diameters of 1.27 mm and 6.35 mm. For both test sections, the initial pressure of stoichiometric mixtures was varied to determine the effect on detonation propagation. For the 6.35 mm tube, the equivalence ratio {phi} (where the mixture was {phi} C{sub 3}H{sub 8} + 50{sub 2}) was also varied. Detonations were found to propagate in mixtures with cell sizes as large as five times the diameter of the tube. However, under these conditions, significant losses were observed, resulting in wave propagation velocities as slow as 40% of the CJ velocity U{sub CJ}. A review of relevant literature is presented, followed by experimental details and data. Observed velocity deficits are predicted using models that account for boundary layer growth inside detonation waves.

Jackson, Scott I [Los Alamos National Laboratory; Shepherd, Joseph E [CALTECH

2009-01-01T23:59:59.000Z

113

The role of reaction affinity and secondary minerals in regulating chemical weathering rates at the Santa Cruz Soil Chronosequence, California  

SciTech Connect (OSTI)

In order to explore the reasons for the apparent discrepancy between laboratory and field weathering rates and to determine the extent to which weathering rates are controlled by the approach to thermodynamic equilibrium, secondary mineral precipitation and flow rates, a multicomponent reactive transport model (CrunchFlow) was used to interpret soil profile development and mineral precipitation and dissolution rates at the 226 ka marine terrace chronosequence near Santa Cruz, CA. Aqueous compositions, fluid chemistry, transport, and mineral abundances are well characterized (White et al., 2008, GCA) and were used to constrain the reaction rates for the weathering and precipitating minerals in the reactive transport modeling. When primary mineral weathering rates are calculated with either of two experimentally determined rate constants, the nonlinear, parallel rate law formulation of Hellmann and Tisser and [2006] or the aluminum inhibition model proposed by Oelkers et al. [1994], modeling results are consistent with field-scale observations when independently constrained clay precipitation rates are accounted for. Experimental and field rates, therefore, can be reconciled at the Santa Cruz site. Observed maximum clay abundances in the argillic horizons occur at the depth and time where the reaction fronts of the primary minerals overlap. The modeling indicates that the argillic horizon at Santa Cruz can be explained almost entirely by weathering of primary minerals and in situ clay precipitation accompanied by undersaturation of kaolinite at the top of the profile. The rate constant for kaolinite precipitation was also determined based on model simulations of mineral abundances and dissolved Al, SiO{sub 2}(aq) and pH in pore waters. Changes in the rate of kaolinite precipitation or the flow rate do not affect the gradient of the primary mineral weathering profiles, but instead control the rate of propagation of the primary mineral weathering fronts and thus total mass removed from the weathering profile. Our analysis suggests that secondary clay precipitation is as important as aqueous transport in governing the amount of dissolution that occurs within a profile because clay minerals exert a strong control over the reaction affinity of the dissolving primary minerals. The modeling also indicates that the weathering advance rate and the total mass of mineral dissolved is controlled by the thermodynamic saturation of the primary dissolving phases plagioclase and K-feldspar, as is evident from the difference in propagation rates of the reaction fronts for the two minerals despite their very similar kinetic rate laws.

Maher, K.; Steefel, C. I.; White, A.F.; Stonestrom, D.A.

2009-02-25T23:59:59.000Z

114

Rates & Repayment  

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

Environmental Review-NEPA Financial Data Operations Planning & Projects Power Marketing Rates Rate Adjustments Transmission Ancillary Services Rates WAPA-137 Rate Order Environmental Review-NEPA Financial Data Operations Planning & Projects Power Marketing Rates Rate Adjustments Transmission Ancillary Services Rates WAPA-137 Rate Order Rates and Repayment Services Rates Current and Historical Rate Information Collbran Power Rates CRSP Power Rates CRSP Transmission System Rates CRSP Management Center interest rates Falcon-Amistad Power Rates Provo River Power Rates Rio Grande Power Rates Seedskadee Power Rates SLCA/IP Power Rates Rate Schedules & Supplemental Rate Information Current Rates for Firm Power, Firm & Non-firm Transmission Service, & Ancillary Services Current Transmission & Ancillary Services Rates Tariffs Components of the SLCA/IP Existing Firm Power Rate Cost Recovery Charge (CRC) Page MOA Concerning the Upper Colorado River Basin

115

PHOTOSYNTHESIS AND GLOBAL CHANGE CAN CLIMATE DRIVEN CHANGES IN  

E-Print Network [OSTI]

PHOTOSYNTHESIS AND GLOBAL CHANGE CAN CLIMATE DRIVEN CHANGES IN PHOTOSYNTHESIS BE USED TO PREDICT in photosynthesis, and thus substrate supply, influence the rate of ecosystem respiration (Re). Further- more in photosynthesis might result in concomitant changes in both the rate, and temperature-sensitivity, of Re. Re

Barron-Gafford, Greg

116

Propagation of sound waves through a spatially homogeneous but smoothly time-dependent medium  

SciTech Connect (OSTI)

The propagation of sound through a spatially homogeneous but non-stationary medium is investigated within the framework of fluid dynamics. For a non-vortical fluid, especially, a generalized wave equation is derived for the (scalar) potential of the fluid velocity distribution in dependence of the equilibrium mass density of the fluid and the sound wave velocity. A solution of this equation for a finite transition period ? is determined in terms of the hypergeometric function for a phenomenologically realistic, sigmoidal change of the mass density and sound wave velocity. Using this solution, it is shown that the energy flux of the sound wave is not conserved but increases always for the propagation through a non-stationary medium, independent of whether the equilibrium mass density is increased or decreased. It is found, moreover, that this amplification of the transmitted wave arises from an energy exchange with the medium and that its flux is equal to the (total) flux of the incident and the reflected wave. An interpretation of the reflected wave as a propagation of sound backward in time is given in close analogy to Feynman and Stueckelberg for the propagation of anti-particles. The reflection and transmission coefficients of sound propagating through a non-stationary medium is analyzed in more detail for hypersonic waves with transition periods ? between 15 and 200 ps as well as the transformation of infrasound waves in non-stationary oceans. -- Highlights: •Analytically exact study of sound propagation through a non-stationary medium. •Energy exchange between the non-stationary medium and the sound wave. •Transformation of hypersonic and ultrasound frequencies in non-stationary media. •Propagation of sound backward in time in close analogy to anti-particles. •Prediction of tsunamis both in spatially and temporally inhomogeneous oceans.

Hayrapetyan, A.G., E-mail: armen@physi.uni-heidelberg.de [Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, D-69120 Heidelberg (Germany); Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany); Grigoryan, K.K.; Petrosyan, R.G. [Yerevan State University, 1 Alex Manoogian Str., 0025 Yerevan (Armenia)] [Yerevan State University, 1 Alex Manoogian Str., 0025 Yerevan (Armenia); Fritzsche, S. [Helmholtz-Institut Jena, Fröbelstieg 3, D-07743 Jena (Germany) [Helmholtz-Institut Jena, Fröbelstieg 3, D-07743 Jena (Germany); Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, D-07743 Jena (Germany)

2013-06-15T23:59:59.000Z

117

Discrete Propagation in Numerically Simulated Nocturnal Squall Lines  

Science Journals Connector (OSTI)

Simulations of a typical midlatitude squall line were used to investigate a mechanism for discrete propagation, defined as convective initiation ahead of an existing squall line leading to a faster propagation speed for the storm complex. Radar ...

Robert G. Fovell; Gretchen L. Mullendore; Seung-Hee Kim

2006-12-01T23:59:59.000Z

118

PROPAGATION OF SINGULARITIES FOR ROUGH METRICS HART F. SMITH  

E-Print Network [OSTI]

PROPAGATION OF SINGULARITIES FOR ROUGH METRICS HART F. SMITH Abstract. We use a wave packet the Simons Foundation (# 266371 to Hart Smith). 1 #12;2 HART F. SMITH H¨ormander's theorem [9] on propagation

Smith, Hart F.

119

Western-UGP Transmission and Ancillary Services Rates Customer...  

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

16, 2014, with changes noted in the following sections: Proposed Formula Rate for Scheduling, System Control and Dispatch Service, Proposed Rate for Regulation and...

120

Method and apparatus for charged particle propagation  

DOE Patents [OSTI]

A method and apparatus are provided for propagating charged particles from a vacuum to a higher pressure region. A generator includes an evacuated chamber having a gun for discharging a beam of charged particles such as an electron beam or ion beam. The beam is discharged through a beam exit in the chamber into a higher pressure region. A plasma interface is disposed at the beam exit and includes a plasma channel for bounding a plasma maintainable between a cathode and an anode disposed at opposite ends thereof. The plasma channel is coaxially aligned with the beam exit for propagating the beam from the chamber, through the plasma, and into the higher pressure region. The plasma is effective for pumping down the beam exit for preventing pressure increase in the chamber and provides magnetic focusing of the beam discharged into the higher pressure region 24. 7 figs.

Hershcovitch, A.

1996-11-26T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Observation of propagating edge spin waves modes  

SciTech Connect (OSTI)

Broadband magnetization response of equilateral triangular 1000 nm Permalloy dots has been studied under an in-plane magnetic field, applied parallel (buckle state), and perpendicular (Y state) to the triangles base. Micromagnetic simulations identify edge spin waves (E-SWs) in the buckle state as SWs propagating along the two adjacent edges. These quasi one-dimensional spin waves emitted by the vertex magnetic charges gradually transform from propagating to standing due to interference and are weakly affected by dipolar interdot interaction and variation of the aspect ratio. Spin waves in the Y state have a two dimensional character. These findings open perspectives for implementation of the E-SWs in magnonic crystals and thin films.

Lara, A.; Aliev, F. G., E-mail: farkhad.aliev@uam.es [Dpto. Física de la Materia Condensada C-III, Instituto Nicolas Cabrera (INC) and Condensed Matter Physics Institute (IFIMAC), Universidad Autónoma de Madrid, Madrid 28049 (Spain); Metlushko, V. [Department of Electrical and Computer Engineering, University of Illinois, Chicago, Illinois 60607 (United States)

2013-12-07T23:59:59.000Z

122

High energy bosons do not propagate  

E-Print Network [OSTI]

We discuss the propagation of bosons (scalars, gauge fields and gravitons) at high energy in the context of the spectral action. Using heat kernel techniques, we find that in the high-momentum limit the quadratic part of the action does not contain positive powers of the derivatives. We interpret this as the fact that the two point Green functions vanish for nearby points, where the proximity scale is given by the inverse of the cutoff.

M. A. Kurkov; Fedele Lizzi; Dmitri Vassilevich

2013-12-08T23:59:59.000Z

123

Identifying and Understanding Environment-Induced Crack propagation Behavior in Ni-based Superalloy INCONEL 617  

SciTech Connect (OSTI)

The nickel-based superalloy INCONEL 617 is a candidate material for heat exchanger applications in the next-generation nuclear plant (NGNP) system. This project will study the crack propagation process of alloy 617 at temperatures of 650°C-950°C in air under static/cyclic loading conditions. The goal is to identify the environmental and mechanical damage components and to understand in-depth the failure mechanism. Researchers will measure the fatigue crack propagation (FCP) rate (da/dn) under cyclic and hold-time fatigue conditions, and sustained crack growth rates (da/dt) at elevated temperatures. The independent FCP process will be identified and the rate-controlled sustained loading crack process will be correlated with the thermal activation equation to estimate the oxygen thermal activation energy. The FCP-dependent model indicates that if the sustained loading crack growth rate, da/dt, can be correlated with the FCP rate, da/dn, at the full time dependent stage, researchers can confirm stress-accelerated grain-boundary oxygen embrittlement (SAGBOE) as a predominate effect. Following the crack propagation tests, the research team will examine the fracture surface of materials in various cracking stages using a scanning electron microscope (SEM) and an optical microscope. In particular, the microstructure of the crack tip region will be analyzed in depth using high resolution transmission electron microscopy (TEM) and electron energy loss spectrum (EELS) mapping techniques to identify oxygen penetration along the grain boundary and to examine the diffused oxygen distribution profile around the crack tip. The cracked sample will be prepared by focused ion beam nanofabrication technology, allowing researchers to accurately fabricate the TEM samples from the crack tip while minimizing artifacts. Researchers will use these microscopic and spectroscopic results to interpret the crack propagation process, as well as distinguish and understand the environment or SAGBOE damage process under hold-time fatigue and sustained loading conditions

Longzhou Ma

2012-11-30T23:59:59.000Z

124

Quantum Graphical Models and Belief Propagation  

SciTech Connect (OSTI)

Belief Propagation algorithms acting on Graphical Models of classical probability distributions, such as Markov Networks, Factor Graphs and Bayesian Networks, are amongst the most powerful known methods for deriving probabilistic inferences amongst large numbers of random variables. This paper presents a generalization of these concepts and methods to the quantum case, based on the idea that quantum theory can be thought of as a noncommutative, operator-valued, generalization of classical probability theory. Some novel characterizations of quantum conditional independence are derived, and definitions of Quantum n-Bifactor Networks, Markov Networks, Factor Graphs and Bayesian Networks are proposed. The structure of Quantum Markov Networks is investigated and some partial characterization results are obtained, along the lines of the Hammersley-Clifford theorem. A Quantum Belief Propagation algorithm is presented and is shown to converge on 1-Bifactor Networks and Markov Networks when the underlying graph is a tree. The use of Quantum Belief Propagation as a heuristic algorithm in cases where it is not known to converge is discussed. Applications to decoding quantum error correcting codes and to the simulation of many-body quantum systems are described.

Leifer, M.S. [Institute for Quantum Computing, University of Waterloo, 200 University Avenue West, Waterloo Ont., N2L 3G1 (Canada); Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo Ont., N2L 2Y5 (Canada)], E-mail: matt@mattleifer.info; Poulin, D. [Center for the Physics of Information, California Institute of Technology, 1200 E. California Boulevard, 107-81, Pasadena, CA 91125 (United States)], E-mail: dpoulin@ist.caltech.edu

2008-08-15T23:59:59.000Z

125

Diffusive Propagation of Ultra-High-Energy Cosmic Rays and the Propagation Theorem  

Science Journals Connector (OSTI)

We present a detailed analytical study of the propagation of ultra-high-energy (UHE) particles in extragalactic magnetic fields. The crucial parameter that affects the diffuse spectrum is the separation between sources. In the case of a uniform distribution of sources with a separation between them much smaller than all characteristic propagation lengths, the diffuse spectrum of UHE particles has a universal form, independent of the mode of propagation. This statement has the status of theorem. The proof is obtained using the particle number conservation during propagation and also using the kinetic equation for the propagation of UHE particles. This theorem can be also proved with the help of the diffusion equation. In particular, it is shown numerically how the diffuse fluxes converge to this universal spectrum, when the separation between sources diminishes. We study also the analytic solution of the diffusion equation in weak and strong magnetic fields with energy losses taken into account. In the case of strong magnetic fields and for a separation between sources large enough, the GZK cutoff can practically disappear, as it has been found early in numerical simulations. In practice, however, the source luminosities required are too large for this possibility.

R. Aloisio; V. Berezinsky

2004-01-01T23:59:59.000Z

126

Utility Rate Design Revision - A Frisbee Full of Boomerangs  

E-Print Network [OSTI]

Rising electricity prices have prompted investigation of utility rates and proposals for changed in their design. The purpose of this paper is to discuss the current design of electric rates, changes proposed, actual trends, and predictable results...

Dannenmaier, J. H.

1979-01-01T23:59:59.000Z

127

Characterization of penetration induced thermal runaway propagation process within a large format lithium ion battery module  

Science Journals Connector (OSTI)

Abstract This paper investigates the mechanisms of penetration induced thermal runaway (TR) propagation process within a large format lithium ion battery pack. A 6-battery module is built with 47 thermocouples installed at critical positions to record the temperature profiles. The first battery of the module is penetrated to trigger a TR propagation process. The temperature responses, the voltage responses and the heat transfer through different paths are analyzed and discussed to characterize the underlying physical behavior. The temperature responses show that: 1) Compared with the results of TR tests using accelerating rate calorimetry (ARC) with uniform heating, a lower onset temperature and a shorter TR triggering time are observed in a penetration induced TR propagation test due to side heating. 2) The maximum temperature difference within a battery can be as high as 791.8 °C in a penetration induced TR propagation test. The voltage responses have a 5-stage feature, indicating that the TR happens in sequence for the two pouch cells packed inside a battery. The heat transfer analysis shows that: 1) 12% of the total heat released in TR of a battery is enough to trigger the adjacent battery to TR. 2) The heat transferred through the pole connector is only about 1/10 of that through the battery shell. 3) The fire has little influence on the TR propagation, but may cause significant damage on the accessories located above the battery. The results can enhance our understandings of the mechanisms of TR propagation, and provide important guidelines in pack design for large format lithium ion battery.

Xuning Feng; Jing Sun; Minggao Ouyang; Fang Wang; Xiangming He; Languang Lu; Huei Peng

2015-01-01T23:59:59.000Z

128

THE EXCHANGE RATE-INVESTMENT NEXUS AND EXCHANGE RATE INSTABILITY: ANOTHER REASON FOR `FEAR OF FLOATING'  

E-Print Network [OSTI]

THE EXCHANGE RATE-INVESTMENT NEXUS AND EXCHANGE RATE INSTABILITY: ANOTHER REASON FOR `FEAR repercussion comes through the reaction of firms to changed asset prices and the firms' decisions to invest: F31, F32 *Corresponding author 1 #12;THE EXCHANGE RATE-INVESTMENT NEXUS AND EXCHANGE RATE

Ahmad, Sajjad

129

COMPARING FRACTURE PROPAGATION TESTS AND RELATING TEST RESULTS TO SNOWPACK CHARACTERISTICS  

E-Print Network [OSTI]

COMPARING FRACTURE PROPAGATION TESTS AND RELATING TEST RESULTS TO SNOWPACK CHARACTERISTICS Cameron for a slab and weak layer combination to propagate a fracture. University of Calgary researchers performed propensity. KEYWORDS: fracture propagation, snowpack stability test, extended column test, propagation saw

Jamieson, Bruce

130

Inferring the effects of curvature of tubulars from pulse propagation tests  

Science Journals Connector (OSTI)

Drilling tubulars typically function under large static and dynamic axial loads. The axial load causes curvature in the tubing and when loads are excessive sections of tubing are forced in contact with the borehole wall. This causes excessive wear and fatigue and leads to failure of the tubing. The feasibility of inferring the incidence of curvature in the tubing and the increase in the attenuation level due to wall contact was investigated with pulse propagation tests on sections of drill tubing. Propagation speed and attenuation as a function of frequency were estimated from impulse response data using a nonlinear least?squares inversion technique. The changes in dispersion of phase speed and attenuation levels were used to identify changes in wall contact condition. Further attenuation levels were also used to identify the presence of tubing curvature through the resultant coupling between axial and bending waves.

V. N. Rama Rao; Dale F. Morgan; J. Kim Vandiver

1996-01-01T23:59:59.000Z

131

On the propagation of a shear band in a steel tube  

SciTech Connect (OSTI)

Marchand and Duffy tested thin-walled steel tubes in a split Hopkinson torsion bar at a nominal strain-rate of approximately 1,600/s and could not determine conclusively whether a shear band initiating at a point in the tube propagated around the circumference in one direction or in both directions. They estimated the speed of propagation to be 520 m/s in the former case and 260 m/s in the latter. Here, the authors simulate their test numerically, and find that the shear band propagates in both directions around the circumference of the tube. When the tube is twisted at a nominal strain-rate of 5,000/s, the band speed varies from 180 m/s at the site of the initiation to approximately 1,000 m/s at the nearly diametrically opposite point. The band speed increases with an increase in the nominal strain-rate. The material defect is modeled by assuming that a small region near the center of the tubular surface is made of a material weaker than that of the rest of the tube.

Batra, R.C.; Zhang, X. (Univ. of Missouri, Rolla, MO (United States))

1994-04-01T23:59:59.000Z

132

The effects of calcitic and dolomitic limestone rates and particle sizes on soil chemical changes, plant nutrient concentration, and yields of corn and Coastal bermudagrass on two acid Texas soils  

E-Print Network [OSTI]

Directed by Dr. Warren B. Anderson Two, 4, snd 6 tons/ acre of calcitic and dolomitic limestone in three particle size ranges were disked into a Katy fine sandy loam prior to planting corn. Identical treatments were broadcast on a Boy loamy fine sand... neutralized soil acidity faster than did the dolomitic source. All calcitic limestone treatments significantly increased Ca in the surface 6 inches of soil. The 4- and 6-ton/acre rates of fine, and the 6-ton/acre rate of medium calcitic limestone...

Haby, Vincent A

2012-06-07T23:59:59.000Z

133

A STUDY OF ALFVÉN WAVE PROPAGATION AND HEATING THE CHROMOSPHERE  

SciTech Connect (OSTI)

Alfvén wave propagation, reflection, and heating of the chromosphere are studied for a one-dimensional solar atmosphere by self-consistently solving plasma, neutral fluid, and Maxwell's equations with incorporation of the Hall effect and strong electron-neutral, electron-ion, and ion-neutral collisions. We have developed a numerical model based on an implicit backward difference formula of second-order accuracy both in time and space to solve stiff governing equations resulting from strong inter-species collisions. A non-reflecting boundary condition is applied to the top boundary so that the wave reflection within the simulation domain can be unambiguously determined. It is shown that due to the density gradient the Alfvén waves are partially reflected throughout the chromosphere and more strongly at higher altitudes with the strongest reflection at the transition region. The waves are damped in the lower chromosphere dominantly through Joule dissipation, producing heating strong enough to balance the radiative loss for the quiet chromosphere without invoking anomalous processes or turbulences. The heating rates are larger for weaker background magnetic fields below ?500 km with higher-frequency waves subject to heavier damping. There is an upper cutoff frequency, depending on the background magnetic field, above which the waves are completely damped. At the frequencies below which the waves are not strongly damped, the interaction of reflected waves with the upward propagating waves produces power at their double frequencies, which leads to more damping. The wave energy flux transmitted to the corona is one order of magnitude smaller than that of the driving source.

Tu, Jiannan; Song, Paul [Physics Department and Center for Atmospheric Research, University of Massachusetts, Lowell, MA 01854 (United States)

2013-11-01T23:59:59.000Z

134

MONTE-CARLO BURNUP CALCULATION UNCERTAINTY QUANTIFICATION AND PROPAGATION DETERMINATION  

SciTech Connect (OSTI)

MONTEBURNS is a Monte-Carlo depletion routine utilizing MCNP and ORIGEN 2.2. Uncertainties exist in the MCNP transport calculation, but this information is not passed to the depletion calculation in ORIGEN or saved. To quantify this transport uncertainty and determine how it propagates between burnup steps, a statistical analysis of a multiple repeated depletion runs is performed. The reactor model chosen is the Oak Ridge Research Reactor (ORR) in a single assembly, infinite lattice configuration. This model was burned for a 25.5 day cycle broken down into three steps. The output isotopics as well as effective multiplication factor (k-effective) were tabulated and histograms were created at each burnup step using the Scott Method to determine the bin width. It was expected that the gram quantities and k-effective histograms would produce normally distributed results since they were produced from a Monte-Carlo routine, but some of results do not. The standard deviation at each burnup step was consistent between fission product isotopes as expected, while the uranium isotopes created some unique results. The variation in the quantity of uranium was small enough that, from the reaction rate MCNP tally, round off error occurred producing a set of repeated results with slight variation. Statistical analyses were performed using the {chi}{sup 2} test against a normal distribution for several isotopes and the k-effective results. While the isotopes failed to reject the null hypothesis of being normally distributed, the {chi}{sup 2} statistic grew through the steps in the k-effective test. The null hypothesis was rejected in the later steps. These results suggest, for a high accuracy solution, MCNP cell material quantities less than 100 grams and greater kcode parameters are needed to minimize uncertainty propagation and minimize round off effects.

Nichols, T.; Sternat, M.; Charlton, W.

2011-05-08T23:59:59.000Z

135

COUNTER PROPAGATION OF ELECTRON AND CO2 LASER BEAMS IN A PLASMA CHANNEL.  

SciTech Connect (OSTI)

A high-energy CO{sub 2} laser is channeled in a capillary discharge. Occurrence of guiding conditions at a relatively low plasma density (<10{sup 18} cm{sup -3}) is confirmed by MHD simulations. Divergence of relativistic electron beam changes depending on the plasma density. Counter-propagation of the electron and laser beams inside the plasma channel results in intense x-ray generation.

HIROSE,T.; POGORELSKY,I.V.; BEN ZVI,I.; YAKIMENKO,V.; KUSCHE,K.; SIDDONS,P.; KUMITA,T.; KAMIYA,Y.; ZIGLER,A.; GREENBERG,B.; ET AL

2002-11-12T23:59:59.000Z

136

SOFAR propagation conditions in the Subarctic Northeast Pacific Ocean  

Science Journals Connector (OSTI)

An analysis of two extensive sound speed profile surveys (winter and summer) of the subarctic region (above 40° N) in the Northeast Pacific Ocean shows that the depth of the deep sound channel axis is symmetric about the Alaskan Gyre (centered at 53° N 153° W). The axis depth ranges from 100 m or less in the Gyre to 400 m or more along the coast of North America. A model for axis depth contours is developed which has some interesting results. For example a north?south track along 140° W has little change of axis depth with latitude while an east?west track along 53° N would have a significant change in axis depth. An estimate of the yearly variability of the model is made from long?term oceanographic data obtained at weather station “Papa” (50° N 145° W). Sound propagation loss is computed for selected tracks using a range?dependent acoustic prediction model and these results are compared to experimental data.

R. K. Chow; J. W. Powell; D. G. Browning

1983-01-01T23:59:59.000Z

137

EPR Line Shifts and Line Shape Changes Due to Spin Exchange of Nitroxide-Free Radicals in Liquids 4. Test of a Method to Measure Re-Encounter Rates in Liquids Employing 15N  

E-Print Network [OSTI]

ARTICLES EPR Line Shifts and Line Shape Changes Due to Spin Exchange of Nitroxide-Free Radicals, California 91330 ReceiVed: NoVember 9, 2007; In Final Form: December 16, 2007 EPR line shifts due to spin, respectively. Nonlinear least-squares fits of the EPR spectra yielded the resonance fields of the nitrogen

Bales, Barney

138

Method and apparatus for charged particle propagation  

DOE Patents [OSTI]

A method and apparatus are provided for propagating charged particles from a vacuum to a higher pressure region. A generator 14,14b includes an evacuated chamber 16a,b having a gun 18,18b for discharging a beam of charged particles such as an electron beam 12 or ion beam 12b. The beam 12,12b is discharged through a beam exit 22 in the chamber 16a,b into a higher pressure region 24. A plasma interface 34 is disposed at the beam exit 22 and includes a plasma channel 38 for bounding a plasma 40 maintainable between a cathode 42 and an anode 44 disposed at opposite ends thereof. The plasma channel 38 is coaxially aligned with the beam exit 22 for propagating the beam 12,12b from the chamber 16a,b, through the plasma 40, and into the higher pressure region 24. The plasma 40 is effective for pumping down the beam exit 22 for preventing pressure increase in the chamber 16a,b, and provides magnetic focusing of the beam 12,12b discharged into the higher pressure region 24.

Hershcovitch, Ady (Mount Sinai, NY)

1996-11-26T23:59:59.000Z

139

Chlorite Dissolution Rates  

SciTech Connect (OSTI)

Spreadsheets provides measured chlorite rate data from 100 to 300C at elevated CO2. Spreadsheet includes derived rate equation.

Carroll, Susan

2013-07-01T23:59:59.000Z

140

Chlorite Dissolution Rates  

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

Spreadsheets provides measured chlorite rate data from 100 to 300C at elevated CO2. Spreadsheet includes derived rate equation.

Carroll, Susan

Note: This page contains sample records for the topic "rate change propagation" 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

New approach for absolute fluence distribution calculations in Monte Carlo simulations of light propagation in turbid media  

SciTech Connect (OSTI)

A novel way to attain three dimensional fluence rate maps from Monte-Carlo simulations of photon propagation is presented in this work. The propagation of light in a turbid medium is described by the radiative transfer equation and formulated in terms of radiance. For many applications, particularly in biomedical optics, the fluence rate is a more useful quantity and directly derived from the radiance by integrating over all directions. Contrary to the usual way which calculates the fluence rate from absorbed photon power, the fluence rate in this work is directly calculated from the photon packet trajectory. The voxel based algorithm works in arbitrary geometries and material distributions. It is shown that the new algorithm is more efficient and also works in materials with a low or even zero absorption coefficient. The capabilities of the new algorithm are demonstrated on a curved layered structure, where a non-scattering, non-absorbing layer is sandwiched between two highly scattering layers.

Böcklin, Christoph, E-mail: boecklic@ethz.ch; Baumann, Dirk; Fröhlich, Jürg [Institute of Electromagnetic Fields, ETH Zurich, 8092 Zurich (Switzerland)

2014-02-14T23:59:59.000Z

142

Power Rate Cases (pbl/rates)  

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

Choices (2003-06) Power Function Review (PFR) Firstgov Power Rate Cases BPA's wholesale power rates are set to recover its costs and repay the U.S. Treasury for the Federal...

143

Tropical coasts are highly vulnerable to climatic pressures, the future impacts of which are projected to propagate  

E-Print Network [OSTI]

Tropical coasts are highly vulnerable to climatic pressures, the future impacts of which are projected to propagate through the natural and human components of coastal systems. One single event (e the resilience of the whole system. Risks related to climate change are frequently examined in isolation through

Boyer, Edmond

144

Absorption-free superluminal light propagation in a V-type system  

E-Print Network [OSTI]

Dispersion and absorption properties of a weak probe field in a three-level V-type atomic system is studied. By application of indirect incoherent pump fields the effect of populating upper levels on optical properties of the atomic medium in presence of a strong coherent pump field is investigated. It is shown that the slope of dispersion changes from positive to negative just by changing the intensity of the coherent or indirect incoherent pump fields. It is demonstrated that the absorption-free subluminal and superluminal light propagation appears in this system.

Khaled Saaidi; Bahareh Ruzbahani; S. Worya Rabiei; Mohammad Mahmoudi

2010-01-18T23:59:59.000Z

145

Sound propagation in the nonhomogeneous ocean with currents  

Science Journals Connector (OSTI)

One considers the problem of sound propagation in the nonhomogeneous ocean with currents, where the characteristics of the medium vary...oco?1, ...

N. S. Grigor'eva

1985-09-10T23:59:59.000Z

146

Light propagation in chiral media with large pitch  

Science Journals Connector (OSTI)

Light propagation in uniaxial chiral media with large pitch is studied. In these systems there are forbidden zones for extraordinary beams, which lead to effective reflection on zone...

Aksenova, Elena V; Karetnikov, Aleksandr A; Kovshik, Aleksandr P; Kryukov, Evgeny V; Romanov, Vadim P

2008-01-01T23:59:59.000Z

147

Transitions from Oscillatory to Smooth Fracture Propagation in...  

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

Transitions from Oscillatory to Smooth Fracture Propagation in Viscoelastic Materials Jan 29 2015 10:30 AM - 11:30 AM Yehuda Braiman, Division Staff Computer Science and...

148

Nonstationary doppler effect for waves propagating in nonhomogeneous media  

Science Journals Connector (OSTI)

The theory of the frequency shift of continuous waves propagating in a medium whose properties depend on the coordinates and time is presented.

V. I. Krylovich

1982-10-01T23:59:59.000Z

149

Propagation-invariant wave fields with finite energy  

Science Journals Connector (OSTI)

Propagation invariance is extended in the paraxial regime, leading to a generalized self-imaging effect. These wave fields are characterized by a finite number of transverse...

Piestun, Rafael; Schechner, Yoav Y; Shamir, Joseph

2000-01-01T23:59:59.000Z

150

Lattice Boltzmann model for wave propagation  

Science Journals Connector (OSTI)

A lattice Boltzmann model for two-dimensional wave equation is proposed by using the higher-order moment method. The higher-order moment method is based on the solution of a series of partial differential equations obtained by using multiscale technique and Chapman-Enskog expansion. In order to obtain the lattice Boltzmann model for the wave equation with higher-order accuracy of truncation errors, we removed the second-order dissipation term and the third-order dispersion term by employing the moments up to fourth order. The reversibility in time appears owing to the absence of the second-order dissipation term and the third-order dispersion term. As numerical examples, some classical examples, such as interference, diffraction, and wave passing through a convex lens, are simulated. The numerical results show that this model can be used to simulate wave propagation.

Jianying Zhang; Guangwu Yan; Xiubo Shi

2009-08-27T23:59:59.000Z

151

Flame propagation enhancement by plasma excitation of oxygen. Part I: Effects of O{sub 3}  

SciTech Connect (OSTI)

The thermal and kinetic effects of O{sub 3} on flame propagation were investigated experimentally and numerically by using C{sub 3}H{sub 8}/O{sub 2}/N{sub 2} laminar lifted flames. Ozone produced by a dielectric barrier plasma discharge was isolated and measured quantitatively by using absorption spectroscopy. Significant kinetic enhancement by O{sub 3} was observed by comparing flame stabilization locations with and without O{sub 3} production. Experiments at atmospheric pressures showed an 8% enhancement in the flame propagation speed for 1260 ppm of O{sub 3} addition to the O{sub 2}/N{sub 2} oxidizer. Numerical simulations showed that the O{sub 3} decomposition and reaction with H early in the pre-heat zone of the flame produced O and OH, respectively, from which the O reacted rapidly with C{sub 3}H{sub 8} and produced additional OH. The subsequent reaction of OH with the fuel and fuel fragments, such as CH{sub 2}O, provided chemical heat release at lower temperatures to enhance the flame propagation speed. It was shown that the kinetic effect on flame propagation enhancement by O{sub 3} reaching the pre-heat zone of the flame for early oxidation of fuel was much greater than that by the thermal effect from the energy contained within O{sub 3}. For non-premixed laminar lifted flames, the kinetic enhancement by O{sub 3} also induced changes to the hydrodynamics at the flame front which provided additional enhancement of the flame propagation speed. The present results will have a direct impact on the development of detailed plasma-flame kinetic mechanisms and provided a foundation for the study of combustion enhancement by O{sub 2}(a{sup 1}{delta}{sub g}) in part II of this investigation. (author)

Ombrello, Timothy; Won, Sang Hee; Ju, Yiguang [Department of Mechanical and Aerospace Engineering, Engineering Quadrangle, Olden Street, Princeton, NJ 08544 (United States); Williams, Skip [Air Force Research Laboratory, Propulsion Directorate, 1950 Fifth Street, Wright-Patterson AFB, OH 45433 (United States)

2010-10-15T23:59:59.000Z

152

Heuristically Driven Front Propagation for Fast Geodesic Extraction  

E-Print Network [OSTI]

Heuristically Driven Front Propagation for Fast Geodesic Extraction Gabriel Peyr´e Laurent D. Cohen to quickly extract geodesic paths on images and 3D meshes. We use a heuristic to drive the front propagation that is similar to the A algorithm used in artificial intelli- gence. In order to find very quickly geodesic paths

Paris-Sud XI, Université de

153

Viscous attenuation of a detonation wave propagating in a channel  

E-Print Network [OSTI]

Viscous attenuation of a detonation wave propagating in a channel P. Ravindran1 , R. Bellini1 , T of a detonation wave in a two-dimensional channel is simulated by an Euler and a Navier-Stokes solver. Transport arising from viscous drag. 1 Introduction The propagation of a detonation wave remains one

Texas at Arlington, University of

154

LevelSet Techniques Applied to Unsteady Detonation Propagation  

E-Print Network [OSTI]

## Level­Set Techniques Applied to Unsteady Detonation Propagation D. Scott Stewart 1 Tariq Aslam 1­propagating surface. The detonation shock surface has been shown under certain circumstances to be governed, we discuss the specific example from detonation theory, which summarizes our recent work in [2

Aslam, Tariq

155

Fast DOA estimation of incoherently distributed sources by novel propagator  

Science Journals Connector (OSTI)

A low-complexity algorithm is presented for the estimation of the nominal direction-of-arrivals (DOAs) of incoherently distributed (ID) sources. The presented algorithm estimates the nominal DOAs of ID sources by a novel propagator method which makes ... Keywords: DOA estimation, Incoherently distributed sources, Novel propagator, Uniform linear array (ULA)

Zhi Zheng; Guangjun Li

2013-09-01T23:59:59.000Z

156

Radiative transport theory for light propagation in luminescent media  

E-Print Network [OSTI]

the radiative transport equation (RTE) [1,2]. It has been applied successfully to many prob- lemsRadiative transport theory for light propagation in luminescent media Derya ahin* and Boaz Ilan of radiative transport theory to account for light propagation in luminescent random media. This theory

Ilan, Boaz

157

Variational Structure of Inverse Problems in Wave Propagation and Vibration  

E-Print Network [OSTI]

Variational Structure of Inverse Problems in Wave Propagation and Vibration James G. Berryman in wave propagation (traveltime tomography) and two examples in vibration (the plucked string and free.'' For vibrating systems, the apparently very complex behavior of an excited string, drumhead, or the Earth can

158

Shelf?break tidally induced environmental influences on acoustic propagation  

Science Journals Connector (OSTI)

Continuous wave propagation in the 100–500 Hz band in littoral regions depends upon both time?dependent oceanography and bathymetry. The environmental influences interact nonlinearly in the acoustical time variation especially since the diurnal tidesurface height changes creates time?dependent total water depth. A submesoscale hydrodynamic model developed by Shen and Evans is used with tidal forcing and a simple shelf?break bathymetry to produce surface height variation and internal wave activity due to internal tide in a stratified ocean environment. A three?dimensional parabolic equation acoustic model is used to acoustically probe this environment at various bearings relative to the shelf break and the resulting internal tidal dynamics. In particular the acoustical results are examined for three?dimensional effects such as horizontal refraction. First the influence of bathymetry alone is shown and then compared to the full environment due to hydrodynamic action. The relative influences will then be compared by various measures such as modal decomposition acoustic energy summed over depth and signal gain degradation. [This research is sponsored by the ONR.

2004-01-01T23:59:59.000Z

159

On the response of rubbers at high strain rates.  

SciTech Connect (OSTI)

In this report, we examine the propagation of tensile waves of finite deformation in rubbers through experiments and analysis. Attention is focused on the propagation of one-dimensional dispersive and shock waves in strips of latex and nitrile rubber. Tensile wave propagation experiments were conducted at high strain-rates by holding one end fixed and displacing the other end at a constant velocity. A high-speed video camera was used to monitor the motion and to determine the evolution of strain and particle velocity in the rubber strips. Analysis of the response through the theory of finite waves and quantitative matching between the experimental observations and analytical predictions was used to determine an appropriate instantaneous elastic response for the rubbers. This analysis also yields the tensile shock adiabat for rubber. Dispersive waves as well as shock waves are also observed in free-retraction experiments; these are used to quantify hysteretic effects in rubber.

Niemczura, Johnathan Greenberg (University of Texas-Austin)

2010-02-01T23:59:59.000Z

160

Fixing convergence of Gaussian belief propagation  

SciTech Connect (OSTI)

Gaussian belief propagation (GaBP) is an iterative message-passing algorithm for inference in Gaussian graphical models. It is known that when GaBP converges it converges to the correct MAP estimate of the Gaussian random vector and simple sufficient conditions for its convergence have been established. In this paper we develop a double-loop algorithm for forcing convergence of GaBP. Our method computes the correct MAP estimate even in cases where standard GaBP would not have converged. We further extend this construction to compute least-squares solutions of over-constrained linear systems. We believe that our construction has numerous applications, since the GaBP algorithm is linked to solution of linear systems of equations, which is a fundamental problem in computer science and engineering. As a case study, we discuss the linear detection problem. We show that using our new construction, we are able to force convergence of Montanari's linear detection algorithm, in cases where it would originally fail. As a consequence, we are able to increase significantly the number of users that can transmit concurrently.

Johnson, Jason K [Los Alamos National Laboratory; Bickson, Danny [IBM RESEARCH LAB; Dolev, Danny [HEBREW UNIV

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Mechanical Surface Waves Accompany Action Potential Propagation  

E-Print Network [OSTI]

Many studies have shown that a mechanical displacement of the axonal membrane accompanies the electrical pulse defining the Action Potential (AP). Despite a large and diverse body of experimental evidence, there is no theoretical consensus either for the physical basis of this mechanical wave nor its interdependence with the electrical signal. In this manuscript we present a model for these mechanical displacements as arising from the driving of surface wave modes in which potential energy is stored in elastic properties of the neuronal membrane and cytoskeleton while kinetic energy is carried by the axoplasmic fluid. In our model these surface waves are driven by the traveling wave of electrical depolarization that characterizes the AP, altering the compressive electrostatic forces across the membrane as it passes. This driving leads to co-propagating mechanical displacements, which we term Action Waves (AWs). Our model for these AWs allows us to predict, in terms of elastic constants, axon radius and axoplasmic density and viscosity, the shape of the AW that should accompany any traveling wave of voltage, including the AP predicted by the Hodgkin and Huxley (HH) equations. We show that our model makes predictions that are in agreement with results in experimental systems including the garfish olfactory nerve and the squid giant axon. We expect our model to serve as a framework for understanding the physical origins and possible functional roles of these AWs in neurobiology.

Ahmed El Hady; Benjamin B. Machta

2014-07-28T23:59:59.000Z

162

THE WEEK'S PRICE CHANGES  

Science Journals Connector (OSTI)

THE WEEK'S PRICE CHANGES ... United Fuel Gas Co., Charleston, W. Va., has been authorized by Federal Power Commission to increase its wholesale rates for natural gas. ... Monarch Chemical Co., 161 East 42nd St., New York, announced at trie start of the month that it is advancing prices on its line of baking powders and creams, effective Aug. 31. ...

1953-08-17T23:59:59.000Z

163

Unquenching the gluon propagator with Schwinger-Dyson equations  

Science Journals Connector (OSTI)

In this article we use the Schwinger–Dyson equations to compute the nonperturbative modifications caused to the infrared finite gluon propagator (in the Landau gauge) by the inclusion of a small number of quark families. Our basic operating assumption is that the main bulk of the effect stems from the “one-loop dressed” quark loop contributing to the full gluon self-energy. This quark loop is then calculated, using as basic ingredients the full quark propagator and quark-gluon vertex; for the quark propagator we use the solution obtained from the quark-gap equation, while for the vertex we employ suitable Ansätze, which guarantee the transversality of the answer. The resulting effect is included as a correction to the quenched gluon propagator, obtained in recent lattice simulations. Our main finding is that the unquenched propagator displays a considerable suppression in the intermediate momentum region, which becomes more pronounced as we increase the number of active quark families. The influence of the quarks on the saturation point of the propagator cannot be reliably computed within the present scheme; the general tendency appears to be to decrease it, suggesting a corresponding increase in the effective gluon mass. The renormalization properties of our results, and the uncertainties induced by the unspecified transverse part of the quark-gluon vertex, are discussed. Finally, the gluon propagator is compared with the available unquenched lattice data, showing rather good agreement.

A. C. Aguilar; D. Binosi; J. Papavassiliou

2012-07-27T23:59:59.000Z

164

The influence of mesoscale eddies on shallow water acoustic propagation  

Science Journals Connector (OSTI)

Acoustic propagation measurements in 150 m depth on the Florida escarpment observe the effects of the passage of a cyclonic eddy. As the stream core of the Florida Current meanders the eddy is formed and propagates along the shelf edge. The sequence over a roughly a fortnight is as follows: ahead of the eddy warm surface water and cold bottom water are swept onto the terrace forming a steep thermocline and corresponding strong downward refracting C(z). The gradient produce intense focused RBR arrivals and the thermocline becomes a duct for internal waves to propagate shoreward. At first the internal wave energy is minimal and propagation is stable and coherent. As the internal tides attempt to propagate on shelf the sound speed field and the acoustic signals become increasingly variable. The variability reaches a crescendo as the 200 m long internal tide is blocked from propagating on to the narrower shelf and begins to break and overturn producing small?scale variability. As the eddy passes nearly iso?thermal conditions are restored along with quiescent internal wave fields and reduced signal variability. Here the effects are quantized with data from fixed?system acoustic and oceanographic measurements demonstrating that the mesoscale determines acoustic propagation conditions days in advance.

2003-01-01T23:59:59.000Z

165

Stimulated Raman scattering of beat wave of two counter-propagating X-mode lasers in a magnetized plasma  

SciTech Connect (OSTI)

Effects of transverse static magnetic field on stimulated Raman scattering (SRS) of the beat wave excited by two counter-propagating lasers are studied. Two counter-propagating lasers with frequency difference, ?{sub 1}??{sub 2}?2?{sub p}, drive a non resonant space charge beat mode at wave number k{sup ?}{sub 0}?k{sup ?}{sub 1}+k{sup ?}{sub 2} in a plasma, where k{sup ?}{sub 1} and k{sup ?}{sub 2} are wave vectors of lasers having frequencies ?{sub 1} and ?{sub 2}, respectively. The driven beat wave acts as a pump for SRS and excites parametrically a pair of plasma wave (?,k{sup ?}) and side band electromagnetic wave (?{sub 3},k{sup ?}{sub 3}) propagating in the sideward direction in such a way that momentum remains conserved. The growth rate of Raman process is maximum for side scattering at ?{sub s}=?/2 for lower values of applied magnetic field (?1?kG), which can be three fold by applying magnetic field ?5.0?kG. Thus, optimum value of magnetic field can be utilized to achieve maximum electron acceleration in counter propagating geometry of beat wave acceleration by reducing the growth rate of Raman process.

Verma, Kanika; Sajal, Vivek, E-mail: vsajal@rediffmail.com; Varshney, Prateek; Kumar, Ravindra; Sharma, Navneet K. [Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida 201307, UP (India)] [Department of Physics and Materials Science and Engineering, Jaypee Institute of Information Technology, Noida 201307, UP (India)

2014-02-15T23:59:59.000Z

166

Change Log  

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

Change Log Change Log Change Log NERSC-8 / Trinity Benchmarks Change Log 09/03/2013 Correction applied to MiniDFT web-page (to remove inconsistency with MiniDFT README). Capability Improvement measurements do not require 10,000 MPI ranks per k-point. 08/06/2013 Various pages have changed to remove "draft" status 08/02/2013 Correction added to FLOP Counts for "Small" Single-Node Miniapplication Tests page 07/12/2013 README files updated for IOR benchmark to correct an error in wording (no code changes); README file updated for osu-micro-benchmarks (OMB) changing the tests required and conditions including reinserting some tests that had been deleted earlier 07/05/2013 README updated for mpimemu benchmark; Revised version of benchmark results spreadsheet (linked on SSP web page);

167

rates | OpenEI  

Open Energy Info (EERE)

rates rates Dataset Summary Description This dataset, compiled by NREL and Ventyx, provides average residential, commercial and industrial electricity rates by zip code for both investor owned utilities (IOU) and non-investor owned utilities. Note: the file includes average rates for each utility, but not the detailed rate structure data found in the database available via the zip-code look-up feature on the OpenEI Utilities page (http://en.openei.org/wiki/Gateway:Utilities). The data was released by NREL/Ventyx in February 2011. Source NREL and Ventyx Date Released February 24th, 2012 (2 years ago) Date Updated Unknown Keywords electric rates rates US utilities Data text/csv icon IOU rates by zipcode (csv, 1.7 MiB) text/csv icon Non-IOU rates by zipcode (csv, 2.1 MiB)

168

On fracture criteria for dynamic crack propagation in elastic materials with couple stresses  

E-Print Network [OSTI]

The focus of the article is on fracture criteria for dynamic crack propagation in elastic materials with microstructures. Steady-state propagation of a Mode III semi-infinite crack subject to loading applied on the crack surfaces is considered. The micropolar behavior of the material is described by the theory of couple-stress elasticity developed by Koiter. This constitutive model includes the characteristic lengths in bending and torsion, and thus it is able to account for the underlying microstructures of the material. Both translational and micro-rotational inertial terms are included in the balance equations, and the behavior of the solution near to the crack tip is investigated by means of an asymptotic analysis. The asymptotic fields are used to evaluate the dynamic J-integral for a couple-stress material, and the energy release rate is derived by the corresponding conservation law. The propagation stability is studied according to the energy-based Griffith criterion and the obtained results are compar...

Morini, L; Mishuris, G; Radi, E

2013-01-01T23:59:59.000Z

169

Steady-State Propagation of a Mode II Crack in Couple Stress Elasticity  

E-Print Network [OSTI]

The present work deals with the problem of a semi-infinite crack steadily propagating in an elastic body subject to plane-strain shear loading. It is assumed that the mechanical response of the body is governed by the theory of couple-stress elasticity including also micro-rotational inertial effects. This theory introduces characteristic material lengths in order to describe the pertinent scale effects that emerge from the underlying microstructure and has proved to be very effective for modeling complex microstructured materials. It is assumed that the crack propagates at a constant sub-Rayleigh speed. An exact full field solution is then obtained based on integral transforms and the Wiener-Hopf technique. Numerical results are presented illustrating the dependence of the stress intensity factor and the energy release rate upon the propagation velocity and the characteristic material lengths in couple-stress elasticity. The present analysis confirms and extends previous results within the context of couple-stress elasticity concerning stationary cracks by including inertial and micro-inertial effects.

P. A. Gourgiotis; A. Piccolroaz

2014-05-13T23:59:59.000Z

170

Linear and nonlinear light propagations in a Doppler-broadened medium via electromagnetically induced transparency  

SciTech Connect (OSTI)

We present a systematic theoretical study to deal with linear and nonlinear light propagations in a Doppler-broadened three-level {Lambda} system via electromagnetically induced transparency (EIT), with incoherent population exchange between two lower energy levels taken into account. Through a careful analysis of base state and linear excitation, we show that the EIT condition of the system is given by |{Omega}{sub c}|{sup 2{gamma}}{sub 31}>>2{gamma}{sub 21{Delta}{omega}D}{sup 2}, where {Omega}{sub c} is half the Rabi frequency of the control field, {Delta}{omega}{sub D} is the Doppler width, and {gamma}{sub jl} is the decay rate of the coherence between states |j> and |l>. Under this condition, the effect of incoherent population exchange is insignificant, while dephasing dominates the decoherence of the system. This condition also ensures the validity of the weak nonlinear perturbation theory used in this work for solving the Maxwell-Bloch equations with inhomogeneous broadening. We then investigate the nonlinear propagation of the probe field and show that it is possible to form temporal optical solitons in the Doppler-broadened medium. Such solitons have ultraslow propagating velocity and can be generated in very low light power. The possibility of realizing (1+1)-dimensional and (2+1)-dimensional spatial optical solitons in the adiabatic regime of the system is also discussed.

Li Liang; Huang Guoxiang [Department of Physics and Institute of Theoretical Physics, East China Normal University, Shanghai 200062 (China); State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China and Institute of Nonlinear Physics, Zhejiang Normal University, Zhejiang 321004 (China)

2010-08-15T23:59:59.000Z

171

Transport Theory for Shallow Water Propagation with Rough Boundaries  

SciTech Connect (OSTI)

At frequencies of about 1 kHz and higher, forward scattering from a rough sea surface (and/or a rough bottom) can strongly affect shallow water propagation and reverberation. The need exists for a fast, yet accurate method for modeling such propagation where multiple forward scattering occurs. A transport theory method based on mode coupling is described that yields the first and second moments of the field. This approach shows promise for accurately treating multiple forward scattering in one-way propagation. The method is presently formulated in two space dimensions, and Monte-Carlo rough surface PE simulations are used for assessing the accuracy of transport theory results.

Thorsos, Eric I.; Henyey, Frank S.; Elam, W. T.; Hefner, Brian T.; Reynolds, Stephen A.; Yang Jie [Applied Physics Laboratory, University of Washington, 1013 NE 40th Street, Seattle, WA 98105 (United States)

2010-09-06T23:59:59.000Z

172

Propagation of nonlinearly generated harmonic spin waves in microscopic stripes  

SciTech Connect (OSTI)

We report on the experimental study of the propagation of nonlinearly generated harmonic spin waves in microscopic CoFeB stripes. Using an all electrical technique with coplanar waveguides, we find that two kinds of spin waves can be generated by nonlinear frequency multiplication. One has a non-uniform spatial geometry and thus requires appropriate detector geometry to be identified. The other corresponds to the resonant fundamental propagative spin waves and can be efficiently excited by double- or triple-frequency harmonics with any geometry. Nonlinear excited spin waves are particularly efficient in providing an electrical signal arising from spin wave propagation.

Rousseau, O. [Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198 (Japan); Yamada, M.; Miura, K.; Ogawa, S. [Hitachi, Ltd., Central Research Laboratory, 1-280 Higashi-koigakubo, Kokubunji, Tokyo 185-8601 (Japan); Otani, Y., E-mail: yotani@issp.u-tokyo.ac.jp [Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198 (Japan); Institute for Solid State Physics, University of Tokyo, Kashiwa 277-858 (Japan)

2014-02-07T23:59:59.000Z

173

Propagating and reflecting of spin wave in permalloy nanostrip with 360° domain wall  

SciTech Connect (OSTI)

By micromagnetic simulation, we investigated the interaction between propagating spin wave (or magnonic) and a 360° domain wall in a nanostrip. It is found that propagating spin wave can drive a 360° domain wall motion, and the velocity and direction are closely related to the transmission coefficient of the spin wave of the domain wall. When the spin wave passes through the domain wall completely, the 360° domain wall moves toward the spin wave source. When the spin wave is reflected by the domain wall, the 360° domain wall moves along the spin wave propagation direction. Moreover, when the frequency of the spin wave is coincident with that of the 360° domain wall normal mode, the 360° domain wall velocity will be resonantly enhanced no matter which direction the 360 DW moves along. On the other hand, when the spin wave is reflected from the moving 360° domain wall, we observed the Doppler effect clearly. After passing through a 360° domain wall, the phase of the spin wave is changed, and the phase shift is related to the frequency. Nevertheless, phase shift could be manipulated by the number of 360° domain walls that spin wave passing through.

Zhang, Senfu; Mu, Congpu; Zhu, Qiyuan; Zheng, Qi; Liu, Xianyin; Wang, Jianbo; Liu, Qingfang, E-mail: liuqf@lzu.edu.cn [Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000 (China)

2014-01-07T23:59:59.000Z

174

Historical Interest Rates  

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

Current and Historical Interest Rates Current and Historical Interest Rates The table lists interest rates, from the project's inception through the present, for all projects with repayment supervised by the CRSP MC. The latest available interest rate is used for all future interest rate calculations. The Amistad-Falcon, Collbran, Provo River, and Rio Grande Projects are all assigned the average daily "Yield Rate" calculated by the U.S. Treasury, on an annual basis, for Treasury bonds having terms of 15 years or more remaining to maturity. The calculated yield rate is rounded to the nearest one-eighth of one percent. The yield rate is based upon the bond's interest rate, as well as its market value. The Colorado River Storage Project and its participating projects, Dolores and Seedskadee, are assigned the average daily "Coupon Rate," annualized for the same U.S. Treasury bonds used in "Yield Rate" calculations. The coupon rate is the interest rate that the bond carries upon its face.

175

Parametric instabilities of parallel propagating incoherent Alfvén waves in a finite ion beta plasma  

Science Journals Connector (OSTI)

Large amplitude low-frequency Alfvén waves constitute one of the most essential elements of magnetohydrodynamic(MHD)turbulence in the fast solar wind. Due to small collisionless dissipation rates the waves can propagate long distances and efficiently convey such macroscopic quantities as momentum energy and helicity. Since loading of such quantities is completed when the waves damp away it is important to examine how the waves can dissipate in the solar wind. Among various possible dissipation processes of the Alfvén waves parametric instabilities have been believed to be important. In this paper we numerically discuss the parametric instabilities of coherent/incoherent Alfvén waves in a finite ion beta plasma using a one-dimensional hybrid (superparticle ions plus an electron massless fluid) simulation in order to explain local production of sunward propagating Alfvén waves as suggested by Helios/Ulysses observation results. Parameter studies clarify the dependence of parametric instabilities of coherent/incoherent Alfvén waves on the ion and electron beta ratio. Parametric instabilities of coherent Alfvén waves in a finite ion beta plasma are vastly different from those in the cold ions (i.e. MHD and/or Hall-MHD systems) even if the collisionless damping of the Alfvén waves are neglected. Further “nonlinearly driven” modulational instability is important for the dissipation of incoherent Alfvén waves in a finite ion beta plasma regardless of their polarization since the ion kinetic effects let both the right-hand and left-hand polarized waves become unstable to the modulational instability. The present results suggest that although the antisunward propagating dispersive Alfvén waves are efficiently dissipated through the parametric instabilities in a finite ion beta plasma these instabilities hardly produce the sunward propagating waves.

Y. Nariyuki; T. Hada; K. Tsubouchi

2007-01-01T23:59:59.000Z

176

E-Print Network 3.0 - affinity propagation reveals Sample Search...  

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

Third we introduce the message affinity propagation model... such that the Transmissibility by genera- tion g increases as the propagation progresses. We denominate Affinity...

177

Cost Analysis Rate Settin  

E-Print Network [OSTI]

Cost Analysis and Rate Settin for Animal Research Facilities #12;#12;Cost Analysis and Rate ... .. . ...................... . . . ................................. . .... 7 Chapter 2 Preparation for Cost Analysis ......................................................... 9 Chapter 3 Assignment of Costs to Animal Research Facility Cost Centers

Baker, Chris I.

178

Dispersion, Wave Propagation and Efficiency Analysis of Nanowire Solar Cells  

Science Journals Connector (OSTI)

We analyze the electromagnetic properties of InP/InAs nanowire solar cells for different geometries. We address both eigenvalue calculations to determine the wave propagation as well...

Kupec, J; Witzigmann, B

2009-01-01T23:59:59.000Z

179

Production and propagation of mesons in complex nuclei  

SciTech Connect (OSTI)

The propagation of unstable mesons in nuclei is considered with regard to the use of the nucleus as a micro-laboratory. Specific problems considered are those of the nu and the S*/delta systems. 17 refs., 12 figs.

Gibbs, W.R.; Kaufmann, W.B.

1987-01-01T23:59:59.000Z

180

Graphene-clad tapered fiber: effective nonlinearity and propagation losses  

Science Journals Connector (OSTI)

We derive a pulse propagation equation for a graphene-clad optical fiber, treating the optical response of the graphene and nonlinearity of the dielectric fiber core as perturbations...

Gorbach, A V; Marini, A; Skryabin, D V

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

The effect of 3-D structure on Lg propagation patterns  

Science Journals Connector (OSTI)

......source at the Soviet nuclear test site near Semipalitinsk...northwestern quadrant represent energy propagating toward western...there to be significant energy transfer corresponding...effects in the problem of nuclear discrimination where energy at the explosive source......

M. G. Bostock; B. L. N. Kennett

1990-05-01T23:59:59.000Z

182

Numerical Simulations of Water Wave Propagation and Flooding  

Science Journals Connector (OSTI)

In this paper we present main points in the process of application of numerical schemes for hyperbolic balance laws to water wave propagation and flooding. The appropriate mathematical models are the one ... two-...

Luka Sopta; Nelida ?rnjari?-Žic…

2005-01-01T23:59:59.000Z

183

Propagation of SLF/ELF Waves in Anisotropic Ionosphere  

Science Journals Connector (OSTI)

In Chap. 5, the propagation of SLF/ELF electromagnetic waves in the anisotropic ionosphere ... as a horizontally stratified anisotropic plasma for the SLF/ELF electromagnetic waves. Finally, we give ... Those wor...

Prof. Weiyan Pan; Dr. Kai Li

2014-01-01T23:59:59.000Z

184

Modeling of crack initiation, propagation and coalescence in rocks  

E-Print Network [OSTI]

Natural or artificial fracturing of rock plays a very important role in geologic processes and for engineered structures in and on rock. Fracturing is associated with crack initiation, propagation and coalescence, which ...

Gonçalves da Silva, Bruno Miguel

2009-01-01T23:59:59.000Z

185

Acoustical wave propagation in buried water filled pipes  

E-Print Network [OSTI]

This thesis presents a comprehensive way of dealing with the problem of acoustical wave propagation in cylindrically layered media with a specific application in water-filled underground pipes. The problem is studied in ...

Kondis, Antonios, 1980-

2005-01-01T23:59:59.000Z

186

Exciton front propagation in photoexcited GaAs quantum wells  

E-Print Network [OSTI]

We report on the study of spatiotemporal self-organization of carriers in photoexcited GaAs quantum wells. Propagating interfaces between electron-rich and hole-rich regions are seen as expanding and collapsing exciton ...

Yang, Sen

187

Simulation of anisotropic wave propagation in Vertical Seismic Profiles  

E-Print Network [OSTI]

they are powerful tools to simulate seismic wave propagation in three-dimensional anisotropic subsurface models. The code is currently under development using a C++ object oriented programming approach because it provides high flexibility in the design of new...

Durussel, Vincent Bernard

2004-09-30T23:59:59.000Z

188

Unit-Spin Propagation Functions and Form Factors  

Science Journals Connector (OSTI)

Source theory is used to derive a representation for the propagation function of a unit-spin meson. The asymptotic behavior for large momenta resembles that observed in electromagnetic form factors.

Julian Schwinger

1971-04-15T23:59:59.000Z

189

Two-dimensional elastic wave propagation in a duraluminum sheet  

E-Print Network [OSTI]

/receiver separations. The purpose of this study is to investigate the propagation of elastic waves in a thin-sheet model simulating a horizontal layer (Figure 2). Source and receiver transducers sre placed on the edge of the sheet. Elastic waves are generated...TWO-DIMENSIONAL ELASTIC WAVE PROPAGATION IN A DURALUMINUM SHEET A Thesis DAVID PAUL CEFOLA Submitted to the Graduate College of Texas AIM University in partial fulfillment of the requirement for the degree of' MASTER OF SCIENCE August 1982...

Cefola, David Paul

1982-01-01T23:59:59.000Z

190

Circular polarization of obliquely propagating whistler wave magnetic field  

SciTech Connect (OSTI)

The circular polarization of the magnetic field of obliquely propagating whistler waves is derived using a basis set associated with the wave partial differential equation. The wave energy is mainly magnetic and the wave propagation consists of this magnetic energy sloshing back and forth between two orthogonal components of magnetic field in quadrature. The wave electric field energy is small compared to the magnetic field energy.

Bellan, P. M. [Applied Physics, Caltech, Pasadena California 91125 (United States)] [Applied Physics, Caltech, Pasadena California 91125 (United States)

2013-08-15T23:59:59.000Z

191

Phenomenology of infrared finite gluon propagator and coupling constant  

E-Print Network [OSTI]

We report on some recent solutions of the Dyson-Schwinger equations for the infrared behavior of the gluon propagator and coupling constant, discussing their differences and proposing that these different behaviors can be tested through hadronic phenomenology. We discuss which kind of phenomenological tests can be applied to the gluon propagator and coupling constant, how sensitive they are to the infrared region of momenta and what specific solution is preferred by the experimental data.

A. A. Natale

2006-10-23T23:59:59.000Z

192

Excitation and propagation of electromagnetic fluctuations with ion-cyclotron range of frequency in magnetic reconnection laboratory experiment  

SciTech Connect (OSTI)

Large-amplitude electromagnetic fluctuations of ion-cyclotron-frequency range are detected in a laboratory experiment inside the diffusion region of a magnetic reconnection with a guide field. The fluctuations have properties similar to kinetic Alfvén waves propagating obliquely to the guide field. Temporary enhancement of the reconnection rate is observed during the occurrence of the fluctuations, suggesting a relationship between the modification in the local magnetic structure given by these fluctuations and the intermittent fast magnetic reconnection.

Inomoto, Michiaki; Tanabe, Hiroshi; Ono, Yasushi [Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 (Japan)] [Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561 (Japan); Kuwahata, Akihiro [Graduate School of Engineering, The University of Tokyo,7-3-1 Hongo, Bunkyo, Tokyo 113-8656 (Japan)] [Graduate School of Engineering, The University of Tokyo,7-3-1 Hongo, Bunkyo, Tokyo 113-8656 (Japan); Collaboration: TS Group

2013-06-15T23:59:59.000Z

193

Continuous Change Institutional Change Principle  

Broader source: Energy.gov [DOE]

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

194

Is climate change affecting rates of dune migration in Antarctica?  

Science Journals Connector (OSTI)

...sensitive to both atmospheric conditions and surface...with 100 and 200 MHz antennas, all in...Interpretation of 100 MHz ground-penetrating...Interpretation of 100 MHz GPR profile LV3...inductively coupled plasma-mass spectrometry...reorganization of atmospheric circulation (Mayewski...

Charlie S. Bristow; Paul Augustinus; Ed J. Rhodes; Irene C. Wallis; Harry M. Jol

195

Is climate change affecting rates of dune migration in Antarctica?  

Science Journals Connector (OSTI)

...sensitive to both atmospheric conditions...Valley. A large lake existed...covered the area currently...100 and 200 MHz antennas...Interpretation of 100 MHz ground-penetrating...Interpretation of 100 MHz GPR profile...inductively coupled plasma-mass spectrometry...samples, are large owing to...the same area for the following...reorganization of atmospheric circulation...

Charlie S. Bristow; Paul Augustinus; Ed J. Rhodes; Irene C. Wallis; Harry M. Jol

196

73Working with Rates Because things change in the  

E-Print Network [OSTI]

years Problem 6 - 416 gamma-ray bursts spotted in 52 weeks Problem 7 - 3000 kilometers traveled in 200 in 800 years = 2 novas/year Problem 6 - 416 gamma-ray bursts spotted in 52 weeks = 8 gamma-ray bursts

197

Solar geoengineering to limit the rate of temperature change  

Science Journals Connector (OSTI)

...and the full three-dimensional climate model is analogous to the relationship between modern three-dimensional Earth system models and the real Earth in this important respect: in each case, the model used is a simpler and imperfect representation...

2014-01-01T23:59:59.000Z

198

Sensitivity study of explosive nucleosynthesis in type Ia supernovae: Modification of individual thermonuclear reaction rates  

Science Journals Connector (OSTI)

Background: Type Ia supernovae contribute significantly to the nucleosynthesis of many Fe-group and intermediate-mass elements. However, the robustness of nucleosynthesis obtained via models of this class of explosions has not been studied in depth until now.Purpose: We explore the sensitivity of the nucleosynthesis resulting from thermonuclear explosions of massive white dwarfs with respect to uncertainties in nuclear reaction rates. We put particular emphasis on indentifying the individual reactions rates that most strongly affect the isotopic products of these supernovae.Method: We have adopted a standard one-dimensional delayed detonation model of the explosion of a Chandrasekhar-mass white dwarf and have postprocessed the thermodynamic trajectories of every mass shell with a nucleosynthetic code to obtain the chemical composition of the ejected matter. We have considered increases (decreases) by a factor of 10 on the rates of 1196 nuclear reactions (simultaneously with their inverse reactions), repeating the nucleosynthesis calculations after modification of each reaction rate pair. We have computed as well hydrodynamic models for different rates of the fusion reactions of 12C and of 16O. From the calculations we have selected the reactions that have the largest impact on the supernova yields, and we have computed again the nucleosynthesis using two or three alternative prescriptions for their rates, taken from the JINA REACLIB database. For the three reactions with the largest sensitivity we have analyzed as well the temperature ranges where a modification of their rates has the strongest effect on nucleosynthesis.Results: The nucleosynthesis resulting from the type Ia supernova models is quite robust with respect to variations of nuclear reaction rates, with the exception of the reaction of fusion of two 12C nuclei. The energy of the explosion changes by less than ?4% when the rates of the reactions 12C+12C or 16O+16O are multiplied by a factor of ×10 or ×0.1. The changes in the nucleosynthesis owing to the modification of the rates of these fusion reactions are also quite modest; for instance, no species with a mass fraction larger than 0.02 experiences a variation of its yield larger than a factor of 2. We provide the sensitivity of the yields of the most abundant species with respect to the rates of the most intense reactions with protons, neutrons, and ?. In general, the yields of Fe-group nuclei are more robust than the yields of intermediate-mass elements. Among the species with yields larger than 10?8M?, 35S has the largest sensitivity to the nuclear reaction rates. It is remarkable that the reactions involving elements with Z>22 have a tiny influence on the supernova nucleosynthesis. Among the charged-particle reactions, the most influential on supernova nucleosynthesis are 30Si+p?31P+?, 20Ne+??24Mg+?, and 24Mg+??27Al+p. The temperatures at which a modification of their rate has a larger impact are in the range 2?T?4 GK.Conclusions: The explosion model (i.e., the assumed conditions and propagation of the flame) chiefly determines the element production of type Ia supernovae and derived quantities such as their luminosity, while the nuclear reaction rates used in the simulations have a small influence on the kinetic energy and final chemical composition of the ejecta. Our results show that the uncertainty in individual thermonuclear reaction rates cannot account for discrepancies of a factor of 2 between isotopic ratios in type Ia supernovae and those in the solar system, especially within the Fe group.

Eduardo Bravo and Gabriel Martínez-Pinedo

2012-05-18T23:59:59.000Z

199

LCC Guidance Rates  

Broader source: Energy.gov [DOE]

Notepad text file provides the LCC guidance rates in a numbered format for the various regions throughout the U.S.

200

Draft Tiered Rate Methodology  

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

year's weather and other specific factors are removed from the loads of irrigated agriculture. ( ) "Irrigation Rate Mitigation" means the form of a discount by BPA to...

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


201

Heart Rate Artifact Suppression.  

E-Print Network [OSTI]

??Motion artifact strongly corrupts heart rate measurements in current pulse oximetry systems. In many, almost any motion will greatly diminish the system’s ability to extract… (more)

Dickson, Christopher

2012-01-01T23:59:59.000Z

202

Residential Solar Valuation Rates  

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

Residential Solar Valuation Rates Karl R. Rbago Rbago Energy LLC 1 The Ideal Residential Solar Tariff Fair to the utility and non-solar customers Fair compensation to...

203

Nominal exchange rate pegging, escape clauses and targeting of the real exchange rate  

E-Print Network [OSTI]

We consider an economy under a fixed exchange rate system, but with bounds (a minimum level or a band) on the real exchange rate. The international price of the tradable good is characterized by the continuous arrival of shocks that change its level...

Gonzalez, Pablo

2006-08-16T23:59:59.000Z

204

Definition: Dynamic Capability Rating | Open Energy Information  

Open Energy Info (EERE)

Capability Rating Capability Rating Jump to: navigation, search Dictionary.png Dynamic Capability Rating Dynamic capability rating can be achieved through real-time determination of an element's (e.g., line, transformer etc.) ability to carry load based on electrical and environmental conditions.[1] Related Terms rating References ↑ SmartGrid.gov 'Description of Functions' An LikeLike UnlikeLike You like this.Sign Up to see what your friends like. inline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Dynamic_Capability_Rating&oldid=506158" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load)

205

Ion stochastic heating by obliquely propagating magnetosonic waves  

SciTech Connect (OSTI)

The ion motions in obliquely propagating Alfven waves with sufficiently large amplitudes have already been studied by Chen et al.[Phys. Plasmas 8, 4713 (2001)], and it was found that the ion motions are stochastic when the wave frequency is at a fraction of the ion gyro-frequency. In this paper, with test particle simulations, we investigate the ion motions in obliquely propagating magnetosonic waves and find that the ion motions also become stochastic when the amplitude of the magnetosonic waves is sufficiently large due to the resonance at sub-cyclotron frequencies. Similar to the Alfven wave, the increase of the propagating angle, wave frequency, and the number of the wave modes can lower the stochastic threshold of the ion motions. However, because the magnetosonic waves become more and more compressive with the increase of the propagating angle, the decrease of the stochastic threshold with the increase of the propagating angle is more obvious in the magnetosonic waves than that in the Alfven waves.

Gao Xinliang; Lu Quanming; Wu Mingyu; Wang Shui [CAS Key Laboratory of Basic Plasma Physics, Department of Geophysics and Planetary Science, University of Science and Technology of China, Hefei 230026 (China)

2012-06-15T23:59:59.000Z

206

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... ACS MEMBER RATES "Situations Wanted" advertisements will be classified by the chemical held designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2000-02-21T23:59:59.000Z

207

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... ACS MEMBER RATES "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

1997-03-24T23:59:59.000Z

208

Positron Beam Propagation in a Meter Long Plasma Channel  

SciTech Connect (OSTI)

Recent experiments and simulations have shown that positron beams propagating in plasmas can be focused and also create wakes with large accelerating gradients. For similar parameters, the wakes driven by positron beams are somewhat smaller compared to the case of an electron beam. Simulations have shown that the wake amplitude can be increased if the positron beam is propagated in a hollow plasma channel (Ref. 1). This paper, compares experimentally, the propagation and beam dynamics of a positron beam in a meter scale homogeneous plasma, to a positron beam hollow channel plasma. The results show that positron beams in hollow channels are less prone to distortions and deflections. Hollow channels were observed to guide the positron beam onto the channel axis. Beam energy loss was also observed implying the formation of a large wake amplitude. The experiments were carried out as part of the E-162 plasma wakefield experiments at SLAC.

Marsh, K.A.; Blue, B.E.; Clayton, C.E.; Joshi, C.; Mori, W.B.; /UCLA; Decker, F.-J.; Hogan, M.J.; Iverson, R.; O'Connell, C.; Raimondi, P.; Siemann, Robert H.; Walz, D.; /SLAC; Katsouleas, T.C.; Muggli, P.; /Southern California U.

2008-03-17T23:59:59.000Z

209

Improving Multigrid and Conventional Relaxation Algorithms for Propagators  

E-Print Network [OSTI]

Practical modifications of deterministic multigrid and conventional relaxation algorithms are discussed. New parameters need not be tuned but are determined by the algorithms themselves. One modification can be thought of as ``updating on a last layer consisting of a single site''. It eliminates critical slowing down in computations of bosonic and fermionic propagators in a fixed volume. Here critical slowing down means divergence of asymptotic relaxation times as the propagators approach criticality. A remaining volume dependence is weak enough in case of bosons so that conjugate gradient can be outperformed. However, no answer can be given yet if the same is true for staggered fermions on lattices of realizable sizes. Numerical results are presented for propagators of bosons and of staggered fermions in 4-dimensional $SU(2)$ gauge fields.

Thomas Kalkreuter

1992-07-17T23:59:59.000Z

210

The importance of covariance in nuclear data uncertainty propagation studies  

SciTech Connect (OSTI)

A study has been undertaken to investigate what proportion of the uncertainty propagated through plutonium critical assembly calculations is due to the covariances between the fission cross section in different neutron energy groups. The uncertainties on k{sub eff} calculated show that the presence of covariances between the cross section in different neutron energy groups accounts for approximately 27-37% of the propagated uncertainty due to the plutonium fission cross section. This study also confirmed the validity of employing the sandwich equation, with associated sensitivity and covariance data, instead of a Monte Carlo sampling approach to calculating uncertainties for linearly varying systems. (authors)

Benstead, J. [AWE Plc, Aldermaston, Berkshire (United Kingdom)

2012-07-01T23:59:59.000Z

211

The fundamental solution of the unidirectional pulse propagation equation  

SciTech Connect (OSTI)

The fundamental solution of a variant of the three-dimensional wave equation known as “unidirectional pulse propagation equation” (UPPE) and its paraxial approximation is obtained. It is shown that the fundamental solution can be presented as a projection of a fundamental solution of the wave equation to some functional subspace. We discuss the degree of equivalence of the UPPE and the wave equation in this respect. In particular, we show that the UPPE, in contrast to the common belief, describes wave propagation in both longitudinal and temporal directions, and, thereby, its fundamental solution possesses a non-causal character.

Babushkin, I. [Institute of Mathematics, Humboldt University, Rudower Chaussee 25, 12489 Berlin (Germany)] [Institute of Mathematics, Humboldt University, Rudower Chaussee 25, 12489 Berlin (Germany); Bergé, L. [CEA, DAM, DIF, F-91297 Arpajon (France)] [CEA, DAM, DIF, F-91297 Arpajon (France)

2014-03-15T23:59:59.000Z

212

Exciton front propagation in photoexcited GaAs quantum wells  

Science Journals Connector (OSTI)

We report on the study of spatiotemporal self-organization of carriers in photoexcited GaAs quantum wells. Propagating interfaces between electron-rich and hole-rich regions are seen as expanding and collapsing exciton rings in exciton emission patterns. The interfaces preserve their integrity during expansion, remaining as sharp as in the steady state, which indicates that the dynamics is controlled by carrier transport. The front propagation velocity is measured and compared to theoretical model. The measurements of expanding and collapsing exciton rings afford a contactless method for probing the electron and hole transport.

Sen Yang, L. V. Butov, L. S. Levitov, B. D. Simons, and A. C. Gossard

2010-03-16T23:59:59.000Z

213

2007-2009 Power Rate Adjustments (pbl/rates)  

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

Function Review (PFR) Firstgov FY 2007 2009 Power Rate Adjustments BPA's 2007-2009 Wholesale Power Rate Schedules and General Rate Schedule Provisions (GRSPs) took effect on...

214

OpenEI - rates  

Open Energy Info (EERE)

U.S. Electric Utility U.S. Electric Utility Companies and Rates: Look-up by Zipcode (Feb 2011) http://en.openei.org/datasets/node/899 This dataset, compiled by NREL and Ventyx, provides average residential, commercial and industrial electricity rates by zip code for both investor owned utilities (IOU) and non-investor owned utilities. Note: the file includes average rates for each utility, but not the detailed rate structure data found in the database available via the zip-code look-up feature on the OpenEI Utilities page (http://en.openei.org/wiki/Gateway:Utilities). The data was released by NREL/Ventyx in February 2011.

215

Water Rate Escalations  

Broader source: Energy.gov [DOE]

Federal agencies need accurate water cost escalation rates to perform life cycle cost analyses for water efficiency projects to meet Executive Order 13514 and Energy Independence and Security Act...

216

Before a Rate Case  

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

is made up of two processes. The first part of the IBR is the Integrated Program Review (IPR), which will address proposed program costs prior to their inclusion in a rate case,...

217

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted "advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202. ...

2002-04-15T23:59:59.000Z

218

Tiered Rate Methodology  

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

Rate Period limit. This 23 exception is limited for the duration of this TRM to the first ten requesting utilities that 24 BP-12-A-03 Section 4 Page 46 meet the size threshold and...

219

Stocking Rate Decisions  

E-Print Network [OSTI]

to predict potential forage shortfalls, determine the im- pact of the decision on finances and other ranch re- sources, and make any necessary adjustments before the forage resource is harmed or financial problems occur. Through adequate planning and periodic... rates with limited knowledge of future forage and market conditions. But they can use past records, experience and range surveys to make realistic projections of forage and market conditions (Figure 3). Then, the planned stock- ing rate should...

White, Larry D.; McGinty, Allan

1999-02-15T23:59:59.000Z

220

On Thermonuclear Reaction Rates  

E-Print Network [OSTI]

Nuclear reactions govern major aspects of the chemical evolution od galaxies and stars. Analytic study of the reaction rates and reaction probability integrals is attempted here. Exact expressions for the reaction rates and reaction probability integrals for nuclear reactions in the case of nonresonant, modified nonresonant, screened nonresonant and resonant cases are given. These are expressed in terms of H-functions, G-functions and in computable series forms. Computational aspects are also discussed.

H. J. Haubold; A. M. Mathai

1996-12-02T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Cat Heart Rate Monitoring  

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

Cat Heart Rate Monitoring Cat Heart Rate Monitoring Name: Shakti Status: student Grade: 9-12 Location: TX Country: USA Date: Summer 2010 Question: What is the best way to find a cat's heart rate using a stethoscope? Because I have tried to hear their heart beat but their purring is all I can hear. If I shouldn't use a stethoscope, then what should I use? Replies: Hi Shakti! If you want to use a stethoscope, the trick is to get your cat to stop purring. Two good ways that I have found to help stop the purring 1. Cover their nose (generally cats don't like this and will stop purring) or 2. Put on the tap to drip or lightly stream water (also, they generally don't like this and will stop purring). Alternatively, you can get their heart rate from feeling their pulse. A good place to try to feel a pulse is right where the leg attaches to the abdomen - in an area called the inguinal region. Now granted there are some heart conditions that will cause an animals pulse and their heart rates don't match up, and it's hard to feel if you have a fat cat, but it's a good place to try if you are really trying to get a heart rate in a healthy kitty!

222

October 2001 - September 2006 Wholesale Power Rates (rates/previous...  

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

October 2001 - September 2006 The 2002 Wholesale Power Rate Schedules (base rates) for the FY 2002-2006 rate period were originally established in May 2000 during the WP-02 Rate...

223

Definition: Equipment Rating | Open Energy Information  

Open Energy Info (EERE)

Rating Rating Jump to: navigation, search Dictionary.png Equipment Rating The maximum and minimum voltage, current, frequency, real and reactive power flows on individual equipment under steady state, short-circuit and transient conditions, as permitted or assigned by the equipment owner.[1] Also Known As Standard current ratings Related Terms reactive power, smart grid References ↑ Glossary of Terms Used in Reliability Standards An i LikeLike UnlikeLike You like this.Sign Up to see what your friends like. nline Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Equipment_Rating&oldid=502535" Categories: Definitions ISGAN Definitions What links here Related changes Special pages Printable version Permanent link Browse properties

224

The influence of the Al stabilizer layer thickness on the normal zone propagation velocity in high current superconductors  

E-Print Network [OSTI]

The stability of high-current superconductors is challenging in the design of superconducting magnets. When the stability requirements are fulfilled, the protection against a quench must still be considered. A main factor in the design of quench protection systems is the resistance growth rate in the magnet following a quench. The usual method for determining the resistance growth in impregnated coils is to calculate the longitudinal velocity with which the normal zone propagates in the conductor along the coil windings. Here, we present a 2D numerical model for predicting the normal zone propagation velocity in Al stabilized Rutherford NbTi cables with large cross section. By solving two coupled differential equations under adiabatic conditions, the model takes into account the thermal diffusion and the current redistribution process following a quench. Both the temperature and magnetic field dependencies of the superconductor and the metal cladding materials properties are included. Unlike common normal zon...

Shilon, I; Langeslag, S A E; Martins, L P; Kate, H H J ten

2014-01-01T23:59:59.000Z

225

Rate Design and Renewables  

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

3000 3500 4000 4500 Crude oil production, thousands of barrels per day Alberta bitumen heavy oil Other Midwest (PADD 2) North Dakota The Midwest oil glut has changed old views...

226

Nonlinearity and memory effects in low temperature heat propagation  

E-Print Network [OSTI]

and bismuth at temperatures below where the materials reached their peak thermal conductivity (approximately of nonlinearity and memory on the propagation of heat waves through crystalline materials at low tempera- tures transverse and longitudinal mechanical waves). This material-dependent temperature of peak thermal

Saxton, Katarzyna

227

Metric approach for sound propagation in nematic liquid crystals  

E-Print Network [OSTI]

In the eikonal approach, we describe sound propagation near to topological defects of nematic liquid crystal as geodesics of a non-euclidian manifold endowed with an effective metric tensor. The relation between the acoustics of the medium and this geometrical description is given by Fermat's principle. We calculate the ray trajectories and propose a diffraction experiment to retrieve informations about the elastic constants.

E. Pereira; S. Fumeron; F. Moraes

2013-01-21T23:59:59.000Z

228

Geodesic Remeshing Using Front Propagation Gabriel Peyre Laurent Cohen  

E-Print Network [OSTI]

Geodesic Remeshing Using Front Propagation Gabriel Peyr´e Laurent Cohen CMAP CEREMADE, UMR CNRS, we present a method for remeshing trian- gulated manifolds by using geodesic path calculations is automatically found. A geodesic Delaunay triangulation of the set of points is then created, using a Voronoi

Paris-Sud XI, Université de

229

Modeling Fault Propagation in Telecommunications Networks for Diagnosis Purposes  

E-Print Network [OSTI]

Modeling Fault Propagation in Telecommunications Networks for Diagnosis Purposes A. Aghasaryan , C@lipn.univ-paris13.fr Abstract: This paper describes a formalism to model the behavior of telecommunications net. Keywords: network management, modeling, UML, distributed diagnosis. 1 Introduction Telecommunications

Pencolé, Yannick

230

Level-Set Techniques Applied to Unsteady Detonation Propagation  

E-Print Network [OSTI]

Level-Set Techniques Applied to Unsteady Detonation Propagation D. Scott Stewart1 Tariq Aslam1 Jin. The detonation shock surface has been shown under certain circumstances to be governed by an intrinsic relation detonation theory, which summarizes our recent work in [2]. In Sect. 4, we briefly explain the derivation

Aslam, Tariq

231

Propagating solitary waves along a rapidly moving crack front  

Science Journals Connector (OSTI)

... Much recent research has focused on crack front coherence and roughening. Simplified models (mode III) of fracture as well as more general models of ... the cumulative effect of numerous asperities would be to cause a crack front to continually roughen. We point out that despite this possibility of increasing roughness, the propagating nature of ...

Eran Sharon; Gil Cohen; Jay Fineberg

2001-03-01T23:59:59.000Z

232

Coupling schemes for modeling hydraulic fracture propagation using the XFEM  

E-Print Network [OSTI]

Coupling schemes for modeling hydraulic fracture propagation using the XFEM Elizaveta Gordeliy of hydraulic fractures in an elastic medium. With appropriate enrichment, the XFEM resolves the Neumann(h) accuracy. For hydraulic fracture problems with a lag separating the uid front from the fracture front, we

Peirce, Anthony

233

Light propagation in biological tissue Arnold D. Kim  

E-Print Network [OSTI]

the radiative transport equation. However, it is just for forward-peaked scattering that the Fokker­Planck equation provides a good approximation, and it is easier to solve than the transport equation. Furthermore propagation in a random medium is governed by the transport equation, which takes account of scattering from

Kim, Arnold D.

234

Light propagation in biological tissues containing an absorbing plate  

E-Print Network [OSTI]

in the forward direction, we replace the governing radiative transport equation with the Fokker­ Planck equation. Introduction Light propagation in biological tissue is governed by the radiative transport equation.1 approxima- tion to the transport equation.3­8 However, these results are limited by the fact

Kim, Arnold D.

235

High-power, high-intensity laser propagation and interactions  

SciTech Connect (OSTI)

This paper presents overviews of a number of processes and applications associated with high-power, high-intensity lasers, and their interactions. These processes and applications include: free electron lasers, backward Raman amplification, atmospheric propagation of laser pulses, laser driven acceleration, atmospheric lasing, and remote detection of radioactivity. The interrelated physical mechanisms in the various processes are discussed.

Sprangle, Phillip [Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States); Electrical and Computer Engineering and Physics, University of Maryland, College Park, Maryland 20740 (United States); Hafizi, Bahman [Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States)

2014-05-15T23:59:59.000Z

236

STABILITY PROPERTIES OF LIGHT PROPAGATING IN FIBER OPTICS  

E-Print Network [OSTI]

STABILITY PROPERTIES OF LIGHT PROPAGATING IN FIBER OPTICS ST´EPHANE LAFORTUNE Summary The study is crucial in applications such as lasers and optical fibers. In this proposal I will focus on a model of fiber optics: the Manakov system. This system consists of two differential equations, that is two

Kasman, Alex

237

Modeling wildland fire propagation with level set methods  

Science Journals Connector (OSTI)

Level set methods are versatile and extensible techniques for general front tracking problems, including the practically important problem of predicting the advance of a fire front across expanses of surface vegetation. Given a rule, empirical or otherwise, ... Keywords: Front propagation, Hamilton-Jacobi equations, Level set methods, Multivac software, Wildland fire spread

V. Mallet; D. E. Keyes; F. E. Fendell

2009-04-01T23:59:59.000Z

238

POLEWARD PROPAGATING WEATHER SYSTEMS IN Jessica A. Staude  

E-Print Network [OSTI]

in West Antarctica. In this study satellite imagery is used to determine impact times of weather systemsPOLEWARD PROPAGATING WEATHER SYSTEMS IN ANTARCTICA by Jessica A. Staude A THESIS SUBMITTED hazardous weather on Earth. The continent is known for its extreme weather including bitterly cold

Wisconsin at Madison, University of

239

Radio Wave Propagation in Potato Fields John Thelen  

E-Print Network [OSTI]

Radio Wave Propagation in Potato Fields John Thelen Wageningen University Email: John nodes. This paper reports on an extensive set of measurements taken in a potato field, where the foliage of the potato crop is significant. We observed a reduction of 15 dB in signal strength at 15 m between nodes

Kuzmanov, Georgi

240

Light polarization control during free-space propagation using coherence  

SciTech Connect (OSTI)

We report an experimental demonstration of light polarization degree control during free propagation via manipulation of the coherent properties of the source. These experimental results corroborate the theory that polarization and coherence are both related to the same statistical properties of the electromagnetic field.

Vidal, Itamar; Fonseca, Eduardo J. S.; Hickmann, Jandir M. [Optics and Materials Group-Optma, Universidade Federal de Alagoas, Caixa Postal 2051, Maceio, AL, 57061-970 (Brazil)

2011-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Sound propagation over Dickins Seamount in the Northeast Pacific Ocean  

Science Journals Connector (OSTI)

The acoustic propagation losses between a 230?Hz cw source and a multi?hydrophone receiving system were measured over Dickins Seamount in the Northeast Pacific. The source was towed at depths of 18 and 184 m. The receiving system had hydrophones spaced in depth from 323 to 633 m. The measurements were made to a maximum range of 130 km with the receiver located at a range of 60 km from the seamount peak. The results show that the seamount cast an acoustic shadow over the receiver increasing the propagation loss by up to 15 dB when the source was shallow and in a position which enabled the seamount to intercept all of the deep refracted source energy. Back reflections from the seamount with levels 6 to 13 dB below the direct signal level were present when the shallow source was 3 to 5 km from the seamount peak. Downslope reflections enhanced the direct signal by up to 10 dB when the shallow source was within 3 km of the peak. Acoustic shadowing and reflection effects were minimal in the results for the deep source because most of the source energy propagated along the sound?channel axis above the seamount peak. The analysis indicates that ray theory is adequate for describing the reflection effects of the acoustic propagation but does not account for all of the acoustic energy in the shadow zone.

Gordon R. Ebbeson; R. Glenn Turner

1983-01-01T23:59:59.000Z

242

Experiments and multiscale simulations of laser propagation through  

E-Print Network [OSTI]

LETTERS Experiments and multiscale simulations of laser propagation through ignition-scale plasmas- energy, ignition-size laser beam through fusion-size plasmas on the National Ignition Facility (NIF and astrophysical phenomena. The laser­plasma interactions in these ignition hohlraums are complex because the laser

Loss, Daniel

243

MULTISPECTRAL SYNTHETIC SCENE GENERATION USING ATMOSPHERIC PROPAGATION AND THERMODYNAMIC MODELS  

E-Print Network [OSTI]

of the Central Intelligence Agency, the US Department of Energy, NASA's Jet Propulsion Laboratory, ITEK a requirement. This document represents the current status of a first-principles physics-based synthetic image behavior in a natural environment, and the propagation of energy through the atmosphere. The model

Salvaggio, Carl

244

Electromagnetic Waves Propagation in 3D Plasma Configurations  

E-Print Network [OSTI]

Electromagnetic Waves Propagation in 3D Plasma Configurations Pavel Popovich, W. Anthony Cooper such method is based on heating the plasma by electromagnetic waves with various frequencies. Wave behaviour that allows to simulate mode-conversion effects. The wave equation is formulated in terms of electromagnetic

245

Propagation Beam Consideration for 3D THz Computed Tomography  

E-Print Network [OSTI]

Propagation Beam Consideration for 3D THz Computed Tomography B. Recur, 1, J.P. Guillet, 2 I. Manek, "Refraction losses in terahertz computed tomography," Opt. Commun. 283, 2050­2055 (2010). 8. S. Nadar, H, "Accelerated image reconstruction using ordered subsets of projection data," IEEE Trans. Med. Imaging 13, 601

Boyer, Edmond

246

Oscillations in lossless propagation models: a Liapunov?Krasovskii approach  

Science Journals Connector (OSTI)

......propagation problem is strongly related to electric and electronic applications, e.g...circuit might accept a nonlinear negative resistance, if the choice of a > 0 and ?> 0 allows...b ? 1 ? R 2 ? C L ? 2 ? ? ? ?. An elementary but tedious manipulation of Sylvester......

Vladimir Rasvan; Silviu-Iulian Niculescu

2002-03-01T23:59:59.000Z

247

Wave propagation in a 1-D partially saturated poroelastic column  

Science Journals Connector (OSTI)

......been obtained for the propagation due to a point load acting vertically at the surface of a medium that consists of a dry-type layer overlying a fluid-saturated porous substratum. Zienkiewicz et al. (1990) extended the formulation of static......

P. Li; M. Schanz

2011-03-01T23:59:59.000Z

248

ON SUN-TO-EARTH PROPAGATION OF CORONAL MASS EJECTIONS  

SciTech Connect (OSTI)

We investigate how coronal mass ejections (CMEs) propagate through, and interact with, the inner heliosphere between the Sun and Earth, a key question in CME research and space weather forecasting. CME Sun-to-Earth kinematics are constrained by combining wide-angle heliospheric imaging observations, interplanetary radio type II bursts, and in situ measurements from multiple vantage points. We select three events for this study, the 2012 January 19, 23, and March 7 CMEs. Different from previous event studies, this work attempts to create a general picture for CME Sun-to-Earth propagation and compare different techniques for determining CME interplanetary kinematics. Key results are obtained concerning CME Sun-to-Earth propagation: (1) the Sun-to-Earth propagation of fast CMEs can be approximately formulated into three phases: an impulsive acceleration, then a rapid deceleration, and finally a nearly constant speed propagation (or gradual deceleration); (2) the CMEs studied here are still accelerating even after the flare maximum, so energy must be continuously fed into the CME even after the time of the maximum heating and radiation has elapsed in the corona; (3) the rapid deceleration, presumably due to interactions with the ambient medium, mainly occurs over a relatively short timescale following the acceleration phase; and (4) CME-CME interactions seem a common phenomenon close to solar maximum. Our comparison between different techniques (and data sets) has important implications for CME observations and their interpretations: (1) for the current cases, triangulation assuming a compact CME geometry is more reliable than triangulation assuming a spherical front attached to the Sun for distances below 50-70 solar radii from the Sun, but beyond about 100 solar radii we would trust the latter more; (2) a proper treatment of CME geometry must be performed in determining CME Sun-to-Earth kinematics, especially when the CME propagation direction is far away from the observer; and (3) our approach to comparing wide-angle heliospheric imaging observations with interplanetary radio type II bursts provides a novel tool in investigating CME propagation characteristics. Future CME observations and space weather forecasting are discussed based on these results.

Liu, Ying D. [State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing (China); Luhmann, Janet G.; Moestl, Christian; Bale, Stuart D.; Lin, Robert P. [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States); Lugaz, Noe [Space Science Center, University of New Hampshire, Durham, NH 03824 (United States); Davies, Jackie A., E-mail: liuxying@ssl.berkeley.edu [Space Science and Technology Department, Rutherford Appleton Laboratory, Didcot (United Kingdom)

2013-05-20T23:59:59.000Z

249

Determination of effective brain connectivity from functional connectivity using propagator-based interferometry and neural field theory with application to the corticothalamic system  

Science Journals Connector (OSTI)

It is shown how to compute both direct and total effective connection matrices (deCMs and teCMs), which embody the strengths of neural connections between regions, from correlation-based functional CMs using propagator-based interferometry, a method that stems from geophysics and acoustics, coupled with the recent identification of deCMs and teCMs with bare and dressed propagators, respectively. The approach incorporates excitatory and inhibitory connections, multiple structures and populations, and measurement effects. The propagator is found for a generalized scalar wave equation derived from neural field theory, and expressed in terms of neural activity correlations and covariances, and wave damping rates. It is then related to correlation matrices that are commonly used to express functional and effective connectivities in the brain. The results are illustrated in analytically tractable test cases.

P. A. Robinson

2014-10-15T23:59:59.000Z

250

The effect of aqueous environments upon the initiation and propagation of fatigue cracks in low-alloy steels  

SciTech Connect (OSTI)

The effect of elevated temperature aqueous environments upon the initiation and propagation of fatigue cracks in low-alloy steels is discussed in terms of the several parameters which influence such behavior. These parameters include water chemistry, impurities within the steels themselves, as well as factors such as the water flow rate, loading waveform and loading rates. Some of these parameters have similar effects upon both crack initiation and propagation, while others exhibit different effects in the two stages of cracking. In the case of environmentally-assisted crack (EAC) growth, the most important impurities within the steel are metallurgical sulfide inclusions which dissolve upon contact with the water. A ``critical`` concentration of sulfide ions at the crack tip can then induce environmentally-assisted cracking which proceeds at significantly increased crack growth rates over those observed in air. The occurrence, or non-occurrence, of EAC is governed by the mass-transport of sulfide ions to and from the crack-tip region, and the mass-transport is discussed in terms of diffusion, ion migration, and convection induced within the crack enclave. Examples are given of convective mass-transport within the crack enclave resulting from external free stream flow. The initiation of fatigue cracks in elevated temperature aqueous environments, as measured by the S-N fatigue lifetimes, is also strongly influenced by the parameters identified above. The influence of sulfide inclusions does not appear to be as strong on the crack initiation process as it is on crack propagation. The oxygen content of the environment appears to be the dominant factor, although loading frequency (strain rate) and temperature are also important factors.

James, L.A. [Westinghouse Electric Corp., West Mifflin, PA (United States). Bettis Atomic Power Lab.; Van Der Sluys, W.A. [Babcock and Wilcox Co., Alliance, OH (United States)

1996-01-01T23:59:59.000Z

251

Upper Great Plains Rates information  

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

Rates and Repayment Services Rates and Repayment Services Rates 2010 Firm Power Rate (effective January 1, 2010) Rate Adjustments 2010 Firm Power Rate Adjustment 2009 Firm Power Rate Adjustment IS Rate Adjustments Rate Adjustment Process Rate Orders Signed, December 23, 2009 (16kb pdf) Announcements Firm Electric Service Customer Letter - Preliminary Review of Drought Adder Component, June 27, 2013 (74kb pdf) Customer Letter - Final Notice of Drought Adder Component, October 2, 2013 (68kb pdf) Integrated System (IS) Rates 2014 IS Rates Customer Information Meeting Presentation, October 15, 2013 (611kb pdf) Customer Letter - Notification of 2014 Rates, September 13, 2013 (160kb pdf) 2014 Transmission and Ancillary Services Rate Calculation and 2012 Rate True-up Calculation (4.9mb pdf) 2013 IS Rates

252

BCP Annual Rate Process  

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

2013 BCP Annual Rate Process 2013 BCP Annual Rate Process Informal Process Rate Activity Schedule (doc) Informal Customer Meeting Thursday March 6, 2013 at 10:30 A.M. Conf Rms 3&4 Informal Customer Meeting Presentation (Pdf) PRS Executive Summary (Mar 07, 2013) (Pdf) FY2014 Final Ten Year Operating Plan PRS Executive Summary (PDF) FORM for Foreign Visits (doc) Formal Process Initial Federal Register Notice (pdf) Public Information Forum March 27,2013 at 10:30 A.M. Conf Rms3&4 Customer Meeting Presentation PIF Presentation (PPT) Presentation Details (pdf) Reclamation Fund Status Report PIF PRS Executive Summary (pdf) PIF Transcripts (PDF) Visitor Center Cost Analysis Questions - Responses Public Comment Forum April 10, 2013 at 10:30 A.M. Conf Rms3&4 PCF Transcripts Customer Letters

253

Multiple System Rate Process  

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

DSW Multiple System Transmission Rate Process DSW Multiple System Transmission Rate Process Federal Register Notice Withdrawing Rate Proposal (PDF) Formal Process Extension Federal Register Notice (PDF) Customer Savings Under Various MSTR (XLS) Public Information Forum March 29, 2005 Customer Meeting Overview (Power Point) Customer Meeting Overview (PDF) Customer Meeting Transcript (PDF) Public Comment Forum April 6, 2005 Customer Meeting Transcript (PDF) Response Letter 5-17-05 (PDF) Customer Letters Tonopah ID-5/25/05 (PDF) APS-5/26/05 (PDF) SRP-5/27/05 (PDF) RSLynch-6/1/05 (PDF) KRSaline-6/1/05 (PDF) Formal Process Federal Register Notice (Word) Federal Register Notice (PDF) Brochure (Word) Appendices to Brochure: A B C D E1 E2 F1 F2 GH Public Information Forum July 14, 2004 Customer Meeting Overview (Power Point)

254

Climate Change 2007: Mitigation of Climate Change.  

E-Print Network [OSTI]

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

Schiavon, Stefano; Zecchin, Roberto

2007-01-01T23:59:59.000Z

255

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

E-Print Network [OSTI]

1 Global Climate Change,Global Climate Change, Land Cover Change, andLand Cover Change Changes · Due to ­ Climate Change ­ Land Cover / Land Use Change ­ Interaction of Climate and Land Cover Change · Resolution ­ Space ­ Time Hydro-Climatic Change · Variability vs. Change (Trends) · Point data

256

The Initiation and Propagation of Helium Detonations in White Dwarf Envelopes  

E-Print Network [OSTI]

Detonations in helium-rich envelopes surrounding white dwarfs have garnered attention as triggers of faint thermonuclear ".Ia" supernovae and double detonation Type Ia supernovae. However, recent studies have found that the minimum size of a hotspot that can lead to a helium detonation is comparable to, or even larger than, the white dwarf's pressure scale height, casting doubt on the successful ignition of helium detonations in these systems. In this paper, we examine the previously neglected effects of C/O pollution and a full nuclear reaction network, and we consider hotspots with spatially constant pressure in addition to constant density hotspots. We find that the inclusion of these effects significantly decreases the minimum hotspot size for helium-rich detonation ignition, making detonations far more plausible during turbulent shell convection or during double white dwarf mergers. The increase in burning rate also decreases the minimum shell mass in which a helium detonation can successfully propagate ...

Shen, Ken J

2014-01-01T23:59:59.000Z

257

Rhombohedral AlPt films formed by self-propagating, high temperature synthesis.  

SciTech Connect (OSTI)

High-purity AlPt thin films prepared by self-propagating, high temperature combustion synthesis show evidence for a new rhombohedral phase. Sputter deposited Al/Pt multilayers of various designs are reacted at different rates in air and in vacuum, and each form a new trigonal/hexagonal aluminide phase with unit cell parameters a = 15.571(8) {angstrom}, c = 5.304(1) {angstrom}, space group R-3 (148), and Z, the number of formula units within a unit cell, = 39. The lattice is isostructural to that of the AlPd R-3 lattice as reported by Matkovic and Schubert (Matkovic, 1977). Reacted films have a random in-plane crystallographic texture, a modest out-of-plane (001) texture, and equiaxed grains with dimensions on the order of film thickness.

Adams, David Price; Rodriguez, Mark Andrew; Kotula, Paul Gabriel

2005-11-01T23:59:59.000Z

258

Propagation of errors associated with scaling foliage biomass from field measurements to remote sensing data over a northern Canadian national park  

Science Journals Connector (OSTI)

Abstract If a change detection result based on time series of remote sensing data indicates that there was a 10% increase in an ecosystem property between two years over a specific land area, does it mean there was a real change in the ecosystem property, or could it be merely an estimation error? This question must be addressed before ecosystem managers or policy makers can use the result with confidence for addressing related environmental or natural resource management issues. One means of answering this question is through systematic error propagation analysis. In this study, we analyzed error propagation for detecting inter-annual changes in foliage biomass over Wapusk National Park, Canada. Specifically, we first estimated uncertainties in all input data, including sampling errors in foliage and random errors in AVHRR and Landsat data. Secondly, we evaluated the error propagation from inputs to the remote sensing-derived foliage biomass estimates (including the Landsat-based foliage biomass, AVHRR-derived foliage biomass, and the inter-annual changes in foliage biomass), and determined the threshold of detectable change in foliage biomass. Finally, we investigated approaches that can reduce the threshold. Our results indicated that over Wapusk National Park during 1985–2006, the threshold for a clear-sky AVHRR pixel between two single years was ~ 40% with a confidence level of 84%, and can be reduced to 10% for a land cover class with more than 10 clear-sky AVHRR pixels between two 5-year “State of Park” reporting periods.

W. Chen; P. Zorn; Z. Chen; R. Latifovic; Y. Zhang; J. Li; J. Quirouette; I. Olthof; R. Fraser; D. Mclennan; J. Poitevin; H.M. Stewart; R. Sharma

2013-01-01T23:59:59.000Z

259

Obsidian Hydration Rates  

Science Journals Connector (OSTI)

...OBSIDIAN HYDRATION RATE FOR KLAMATH BASIN OF CALIFORNIA AND OREGON...as the material is excreted, falls through the air, and dries...Friedman. Table 1 presents two new groups of hydra-tion readings for...the true age is believed to fall (3). The Snaketown age is...

Clement W. Meighan

1970-10-02T23:59:59.000Z

260

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2002-03-04T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

1999-10-25T23:59:59.000Z

262

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted"advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2002-12-23T23:59:59.000Z

263

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19067-1612. ...

1997-04-07T23:59:59.000Z

264

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements wilt be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2003-09-15T23:59:59.000Z

265

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted"advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2002-03-25T23:59:59.000Z

266

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

1999-08-16T23:59:59.000Z

267

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2000-06-12T23:59:59.000Z

268

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted"advertisements wilt be classified by the chemical field designated by the members, if not designated, placement will be determined by the first word of the text submitted. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Road, Suite 202, Wayne, PA 19087-1612. ...

2002-05-27T23:59:59.000Z

269

Advertising Rate Information  

Science Journals Connector (OSTI)

Advertising Rate Information ... "Situations Wanted" advertisements will be classified by the chemical field designated by the members. ... State ACS membership status and mail advertisements to: Chemical & Engineering News, Classified Advertising, 676 East Swedesford Koad, Suite 202, Wayne, PA 19087-1612. ...

1998-04-20T23:59:59.000Z

270

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 3, 2004 215 Efficient Modeling of Impulsive ELF Antipodal  

E-Print Network [OSTI]

of impulsive antipodal propagation and the Schumann resonance. Index Terms--Antipodal propagation, extremely low-frequency (ELF), finite-difference time-domain (FDTD), geodesic grid, Schu- mann resonance, sphere

Taflove, Allen

271

Historical and Technical Overview of SLF/ELF Electromagnetic Wave Propagation  

Science Journals Connector (OSTI)

In Chap. 1, we will attempt to address the historical and technical overview of the wave propagation and application in SLF (30–300 Hz) and ELF (below ... . Considering the similarity between the propagation of SLF

Prof. Weiyan Pan; Dr. Kai Li

2014-01-01T23:59:59.000Z

272

Generation and Propagation of Inertia Gravity Waves from Vortex Dipoles and Jets Shuguang Wang  

E-Print Network [OSTI]

Generation and Propagation of Inertia Gravity Waves from Vortex Dipoles and Jets Shuguang Wang generation and propagation from jets within idealized vortex dipoles using a nonhydrostatic mesoscale model, moist convection, fronts, upper level jets, geostrophic adjustment and spontaneous generation (Fritts

273

2007 Wholesale Power Rate Case Initial Proposal : Direct Testimony.  

SciTech Connect (OSTI)

The purpose of our testimony is to sponsor the rate design portions of Bonneville Power Administration's (BPA) Wholesale Power Rate Development Study (WPRDS), WP-07-E-BPA-05, and associated portions of the Wholesale Power Rate Schedules and GRSPs (WP-07-E-BPA-07). Our testimony is organized in eight sections. The first section outlines the purpose of our testimony. Section 2 describes BPA's Demand Rates, including subsections on the definition of the Demand Rate, the method for computing the Demand Rates, and differences from the currently effective WP-02 Demand Rate. Section 3 describes BPA's Load Variance Rate, with subsections on the definition and purpose of the Load Variance Rate, application of the Load Variance Rate, how the Load Variance Rate is calculated, and the differences from the WP-02 Load Variance Rate. Section 4 describes the steps involved in developing BPA's energy rates and differences from the WP-02 rate case. Section 5 discusses discontinuation of the Stepped Up Multi-Year Block Rate. Section 6 describes a minor change to the Unauthorized Increase Rates and the Excess Factoring Rates. Section 7 describes the Targeted Adjustment Charge. Section 8 addresses the Operating Reserves Credit.

United States. Bonneville Power Administration.

2005-11-01T23:59:59.000Z

274

Uncertainty Analysis for Photovoltaic Degradation Rates (Poster)  

SciTech Connect (OSTI)

Dependable and predictable energy production is the key to the long-term success of the PV industry. PV systems show over the lifetime of their exposure a gradual decline that depends on many different factors such as module technology, module type, mounting configuration, climate etc. When degradation rates are determined from continuous data the statistical uncertainty is easily calculated from the regression coefficients. However, total uncertainty that includes measurement uncertainty and instrumentation drift is far more difficult to determine. A Monte Carlo simulation approach was chosen to investigate a comprehensive uncertainty analysis. The most important effect for degradation rates is to avoid instrumentation that changes over time in the field. For instance, a drifting irradiance sensor, which can be achieved through regular calibration, can lead to a substantially erroneous degradation rates. However, the accuracy of the irradiance sensor has negligible impact on degradation rate uncertainty emphasizing that precision (relative accuracy) is more important than absolute accuracy.

Jordan, D.; Kurtz, S.; Hansen, C.

2014-04-01T23:59:59.000Z

275

Kinematics and thermodynamics across a propagating non-stoichiometric oxidation phase front in spent fuel grains  

SciTech Connect (OSTI)

Spent fuel contains mixtures, alloy and compound, but are dominated by U and O except for some UO{sub 2} fuels with burnable poisons (gadolinia in BWR rods), the other elements evolve during reactor operation from neutron reaction and fission + fission decay events. Due to decay, chemical composition and activity of spent fuel will continue to evolve after removal from reactors. During the time interval with significant radioactivity levels relevant for a geological repository, it is important to develop models for potential chemical responses in spent fuel and potential degradation of repository. One such potential impact is the oxidation of spent fuel, which results in initial phase change of UO{sub 2} lattice to U{sub 4}O{sub 9} and the next phase change is probably to U{sub 3}O{sub 8} although it has not been observed yet below 200C. The U{sub 4}O{sub 9} lattice is nonstoichiometric with a O/U weight ratio at 2.4. Preliminary indications are that the UO{sub 2} has a O/U of 2. 4 at the time just before it transforms into the U{sub 4}O{sub 9} phase. In the oxygen weight gain versus time response, a plateau appears as the O/U approaches 2.4. Part of this plateau is due to geometrical effects of a U{sub 4}O{sub 9} phase change front propagating into UO{sub 2} grain volumes; however, this may indicate a metastable phase change delay kinetics or a diffusional related delay time until the oxygen density can satisfy stoichiometry and energy conditions for phase changes. Experimental data show a front of U{sub 4}O{sub 9} lattice structure propagating into grains of the UO{sub 2} lattice. To describe this spatially inhomogenous oxidation phase transition, as well as the expected U{sub 3}O{sub 8} phase transition from the U{sub 4}O{sub 9} lattice, lattice models are developed and spatially discontinuous kinematic and energetic expressions are derived. 9 refs.

Stout, R.B.; Kansa, E.J.; Wijesinghe, A.M.

1993-09-01T23:59:59.000Z

276

Propagating spectroscopy of backward volume spin waves in a metallic FeNi film  

SciTech Connect (OSTI)

We report a propagating spin wave spectroscopy for a magnetostatic backward volume spin wave in a metallic Fe{sub 19}Ni{sub 81} film. We show that the mutual-inductance between two independent antennas detects a small but clear propagation signal of backward volume spin waves. All experimental data are consistent with the time-domain propagating spin-wave spectroscopy. The control of propagating backward spin wave enables to realize the miniaturize spin-wave circuit.

Sato, N.; Ishida, N.; Kawakami, T. [Department of Physics, Keio University, Hiyoshi 3-14-1, Yokohama 223-8522 (Japan); Sekiguchi, K., E-mail: koji-s@phys.keio.ac.jp [Department of Physics, Keio University, Hiyoshi 3-14-1, Yokohama 223-8522 (Japan); JST-PRESTO, Gobancho 7, Chiyoda-ku, Tokyo 102-0076 (Japan)

2014-01-20T23:59:59.000Z

277

Improving sound propagation modeling for wind power projects  

Science Journals Connector (OSTI)

Sound propagation from wind power projects can be modeled in the same manner as other more common outdoor noisesources but are these models suited to wind turbines' uniquely high source heights operating under high wind conditions and various degrees of terrain ruggedness. In "Propagation Modeling Parameters for Wind Turbines" (K. Kaliski and E. Duncan Proceedings of Institute of Noise ControlEngineers NOISECON 2007) the effects of ground attenuation and various adjustments for wind conditions on sound propagationmodeling were discussed. This paper continues the discussion and explores the accuracy of existing sound propagationmodeling methods for wind power projects including ISO 9613 and other standards. Model data for wind power projects and the implications of various terrain and ground coverage will be discussed.

Eddie Duncan; Kenneth Kaliski

2008-01-01T23:59:59.000Z

278

Propagation of ultra-short solitons in stochastic Maxwell's equations  

SciTech Connect (OSTI)

We study the propagation of ultra-short short solitons in a cubic nonlinear medium modeled by nonlinear Maxwell's equations with stochastic variations of media. We consider three cases: variations of (a) the dispersion, (b) the phase velocity, (c) the nonlinear coefficient. Using a modified multi-scale expansion for stochastic systems, we derive new stochastic generalizations of the short pulse equation that approximate the solutions of stochastic nonlinear Maxwell's equations. Numerical simulations show that soliton solutions of the short pulse equation propagate stably in stochastic nonlinear Maxwell's equations and that the generalized stochastic short pulse equations approximate the solutions to the stochastic Maxwell's equations over the distances under consideration. This holds for both a pathwise comparison of the stochastic equations as well as for a comparison of the resulting probability densities.

Kurt, Levent, E-mail: LKurt@gc.cuny.edu [Department of Science, Borough of Manhattan Community College, City University of New York, New York, New York 10007 (United States)] [Department of Science, Borough of Manhattan Community College, City University of New York, New York, New York 10007 (United States); Schäfer, Tobias [Department of Mathematics, College of Staten Island, City University of New York, Staten Island, New York 10314 (United States)] [Department of Mathematics, College of Staten Island, City University of New York, Staten Island, New York 10314 (United States)

2014-01-15T23:59:59.000Z

279

Pair production in counter-propagating laser beams  

E-Print Network [OSTI]

Based on an analysis of a specific electron trajectory in counter-propagating beams, Bell & Kirk (PRL 101, 200403 (2008)) recently suggested that laboratory lasers may shortly be able to produce significant numbers of electron-positron pairs. We confirm their results using an improved treatment of nonlinear Compton scattering in the laser beams. Implementing an algorithm that integrates classical electron trajectories, we then examine a wide range of laser pulse shapes and polarizations. We find that counter-propagating, linearly polarized beams, with either aligned or crossed orientation, are likely to initiate a pair avalanche at intensities of approximately 10^{24} Watts/sq cm per beam. The same result is found by modelling one of the beams as a wave reflected at the surface of an overdense solid.

J. G. Kirk; A. R. Bell; I. Arka

2009-06-24T23:59:59.000Z

280

Measurement of Propagation Time Dispersion in a Scintillator  

E-Print Network [OSTI]

One contribution to the time resolution of a scintillation detector is the signal time spread due to path length variations of the detected photons from a point source. In an experimental study a rectangular scintillator was excited by means of a fast pulsed ultraviolet laser at different positions along its longitudinal axis. Timing measurements with a photomultiplier tube in a detection plane displaced from the scintillator end face showed a correlation between signal time and tube position indicating only a small distortion of photon angles during transmission. The data is in good agreement with a Monte Carlo simulation used to compute the average photon angle with respect to the detection plane and the average propagation time. Limitations on timing performance that arise from propagation time dispersion are expected for long and thin scintillators used in future particle identification systems.

P. Achenbach; C. Ayerbe Gayoso; J. Bernauer; R. Böhm; M. O. Distler; L. Doria; J. Friedrich; H. Merkel; U. Müller; L. Nungesser; J. Pochodzalla; S. Sánchez Majos; S. Schlimme; Th. Walcher; M. Weinriefer

2007-02-25T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Intermediate Strain-Rate Loading - Techniques and Applications  

SciTech Connect (OSTI)

A new test methodology is described which allows access to loading rates that lie between split Hopkinson bar and shock-loading techniques. Gas gun experiments combined with velocity interferometry techniques have been used to experimentally determine the intermediate strain-rate loading behavior of Coors AD995 alumina and Cercom silicon-carbide rods. Graded-density materials have been used as impactors; thereby eliminating the tension states generated by the radial stress components during the loading phase. Results of these experiments demonstrate that the time-dependent stress pulse generated during impact allows an efficient transition from the initial uniaxial strain loading to a uniaxial stress state as the stress pulse propagates through the rod. This allows access to intermediate loading rates over 5 x 10{sup 3}/s to a few times 10{sup 4}/s.

Chhabildas, L.C.; Reinhart, W.D.; Holland, K.G.

1999-07-22T23:59:59.000Z

282

Rail Coal Transportation Rates  

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

reports reports Coal Transportation Rates to the Electric Power Sector With Data through 2010 | Release Date: November 16, 2012 | Next Release Date: December 2013 | Correction Previous editions Year: 2011 2004 Go Figure 1. Deliveries from major coal basins to electric power plants by rail, 2010 Background In this latest release of Coal Transportation Rates to the Electric Power Sector, the U.S. Energy Information Administration (EIA) significantly expands upon prior versions of this report with the incorporation of new EIA survey data. Figure 1. Percent of total U.S. rail shipments represented in data figure data Previously, EIA relied solely on data from the U.S. Surface Transportation Board (STB), specifically their confidential Carload Waybill Sample. While valuable, due to the statistical nature of the Waybill data,

283

Plant Tumor Growth Rates  

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

Plant Tumor Growth Rates Plant Tumor Growth Rates Name: Gina and Maria Location: N/A Country: N/A Date: N/A Question: We are doing a science fair project on if B. Carotene, Green tea, and Grape Seed Extract helps plants against the crown gall disease. We injected sunflowers with agrobacterium tum. one week ago (Sun. Feb. 27, 2000). Our questions is how long will it take for the tumors to grow? We scratched the surface of the stems and injected the agrobacterium in the wound. Also which do you think, in your opinion, will do the best, if any? Our science fair is April 13, do you think we'll have growth before then, atleast enough time to do our conclusion and results? Thank you, any information you forward will be very helpful. Replies: Sunflowers form galls relatively quickly. I usually get them in two weeks at least. Good luck.

284

Adjusted Growth Rates*  

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

Jan. '99 to Feb. '99: -1.7% Feb. '98 to Feb. '99: +19.8% YTD '98 to YTD '99: +15.0% 4,100 4,400 4,700 5,000 5,300 5,600 5,900 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons U.S. Distillate Fuel Sales 2011 2012 2013 Adjusted Growth Rates* Jul '13 to Aug '13: 2.5% Aug '12 to Aug '13: -1.3% YTD '12 to YTD '13: 1.5% 300 400 500 600 700 800 900 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons U.S. Residual Fuel Sales 2011 2012 2013 Adjusted Growth Rates* Jul '13 to Aug '13: -0.8%

285

Convective cell development and propagation in a mesoscale convective complex  

E-Print Network [OSTI]

~ , National Fisheries University of Pusan Chairman of Advisory Committee: Dr ~ Kennth CD Brundidge A case study was made of the mesoscale convective complex (MCC) which occurred over southern Oklahoma and northern Texas on 27 May 1981. This storm moved... in an east-southeasterly direction and during much of its lifetime was observable by radars at Oklahoma City, OK and Stephenville, TX. It was found that the direction of cell (VIP level 3 or more reflectivity) propagation was somewhat erratic...

Ahn, Yoo-Shin

2012-06-07T23:59:59.000Z

286

Propagation of uncertainties in the nuclear DFT models  

E-Print Network [OSTI]

Parameters of the nuclear density functional theory (DFT) models are usually adjusted to experimental data. As a result they carry certain theoretical error, which, as a consequence, carries out to the predicted quantities. In this work we address the propagation of theoretical error, within the nuclear DFT models, from the model parameters to the predicted observables. In particularly, the focus is set on the Skyrme energy density functional models.

Markus Kortelainen

2014-09-04T23:59:59.000Z

287

Nonplanar fracture propagation from a horizontal wellbore: Experimental study  

SciTech Connect (OSTI)

This paper presents experimental results related to hydraulic fracturing of a horizontal well, specifically the nonplanar fracture geometries resulting from fracture initiation and propagation. Experiments were designed to investigate nonplanar fracture geometries. This paper discusses how these nonplanar fractures can be responsible for premature screenout and excessive treatment pressure when a horizontal well is hydraulically fractured. Reasons for unsuccessful hydraulic fracturing treatments of a horizontal well are presented and recommendations to ensure clear communication channels between the wellbore and the fracture are given.

Abass, H.H.; Hedayati, S.; Meadows, D.L.

1996-08-01T23:59:59.000Z

288

Particle Propagation on a Circle with a Point Interaction  

E-Print Network [OSTI]

We study a particle propagation on a circle in the presence of a point interaction. We show that the one-particle Feynman kernel can be written into the sum of reflected and transmitted trajectories which are weighted by the elements of the n-th power of the scattering matrix evaluated on a line with a point interaction. As a by-product we find three-parameter family of trace formulae as a generalization of the Poisson summation formula.

Ohya, Satoshi

2009-01-01T23:59:59.000Z

289

Particle Propagation on a Circle with a Point Interaction  

E-Print Network [OSTI]

We study a particle propagation on a circle in the presence of a point interaction. We show that the one-particle Feynman kernel can be written into the sum of reflected and transmitted trajectories which are weighted by the elements of the n-th power of the scattering matrix evaluated on a line with a point interaction. As a by-product we find three-parameter family of trace formulae as a generalization of the Poisson summation formula.

Satoshi Ohya; Makoto Sakamoto

2009-02-05T23:59:59.000Z

290

Vegetative Propagation and Topophytic Responses of Selected Baldcypress Clones  

E-Print Network [OSTI]

, were kept overnight in a cooler at 8.7° C to ensure hydration. Cuttings were placed in plastic bags partially filled with water and stuck (planting the unrooted basal end in the substrate) the following day. Before 13 sticking, cuttings were..., foliar salt exposure and high pH soil tolerance. Experiments were conducted beginning in May, 2008 to determine commercial viability of vegetative propagation by shoot tip cuttings of these selections, to identify treatment combinations that led...

King, Andrew Richard

2012-10-19T23:59:59.000Z

291

Propagation of Audio-Frequency Radio Waves to Great Distances  

Science Journals Connector (OSTI)

... distances from the source clearly showed that the main concentration of energy lay in the audio-frequency band below 10 kc./s. and that the higher-frequency components moved forward ... selective absorption, which, together with the low attenuation at the extreme ends of the audio-frequency range, accounts for the observed long-distance propagation characteristics of atmospherics1. As is ...

F. W. CHAPMAN; R. C. V. MACARIO

1956-05-19T23:59:59.000Z

292

Adjusted Growth Rates* Jan.  

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

Adjusted Adjusted Growth Rates* Jan. '99 to Feb. '99: -1.7% Feb. '98 to Feb. '99: +19.8% YTD '98 to YTD '99: +15.0% U.S. Distillate Fuel Sales 3,000 3,500 4,000 4,500 5,000 5,500 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1998 1999 2000 Adjusted Growth Rates* Dec '99 to Jan '00: -7.4% Jan '99 to Jan '00: -0.1% YTD '99 to YTD '00: -0.1% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1998 1999 2000 Adjusted Growth Rates* Dec '99 to Jan '00: -16.8% Jan '99 to Jan '00: -3.2% YTD '99 to YTD '00: -3.2% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1998 1999 2000 Adjusted Growth Rates* Dec '99 to Jan '00: -9.3% Jan '99 to Jan '00: +3.5% YTD '99 to YTD '00: +3.5% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul

293

Rate Adjustments and Public Involvement  

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

Rate Adjustments and Public Involvement Documents Rate Adjustments and Public Involvement Documents CRSP Transmission 9/16/2013 WAPA-161 FRN, CRSP transmission and ancillary services rates extension Letter announcing two-year extension to CRSP transmission and ancillary services rates Letter announcing revised CRSP transmission rates for FY 2014 Accompanying calculation table for FY 2014 CRSP transmission rate letter Letter announcing revised CRSP transmission rates for FY 2013 Letter announcing revised CRSP transmission rates for FY 2012 Letter announcing revised CRSP transmission rates for FY 2011 Letter announcing revised CRSP transmission rates for FY 2010 SLCA/IP 9/16/2013 WAPA-161 FRN, SLCA/IP firm power rate extension Letter announcing two-year extension to SLCA/IP firm power rate SLCA/IP Tentative Rate Adjustment Schedule

294

Adjusted Growth Rates*  

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

June '99 to July '99: -5.4% June '99 to July '99: -5.4% July '98 to July '99: +3.3% YTD '98 to YTD '99: +6.3% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* June '99 to July '99: -0.5% July '98 to July '99: -0.4% YTD '98 to YTD '99: +1.1% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* June '99 to July '99: +0.5% July '98 to July '99: +1.0% YTD '98 to YTD '99: -0.3% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* June '99 to July '99: +1.5% July '98 to July '99: +10.2% YTD '98 to YTD '99: +7.2%

295

Adjusted Growth Rates*  

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

Nov '99 to Dec '99: +5.3% Nov '99 to Dec '99: +5.3% Dec '98 to Dec '99: +8.7% YTD '98 to YTD '99: +5.0% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Nov '99 to Dec '99: +6.0% Dec '98 to Dec '99: +4.5% YTD '98 to YTD '99: +1.3% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Nov '99 to Dec '99: +2.4% Dec '98 to Dec '99: +3.0% YTD '98 to YTD '99: +0.9% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Nov '99 to Dec '99: +32.3% Dec '98 to Dec '99: +2.0% YTD '98 to YTD '99: +5.5%

296

Adjusted Growth Rates*  

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

July '99 to Aug. '99: +4.7% July '99 to Aug. '99: +4.7% Aug. '98 to Aug. '99: +1.3% YTD '98 to YTD '99: +4.7% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* July '99 to Aug. '99: -1.9% Aug. '98 to Aug. '99: -0.4% YTD '98 to YTD '99: +0.9% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* July '99 to Aug. '99: -0.1% Aug. '98 to Aug. '99: -1.4% YTD '98 to YTD '99: -0.7% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* July '99 to Aug. '99: +22.3% Aug. '98 to Aug. '99: +21.1%

297

Adjusted Growth Rates*  

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

Aug '99 to Sep '99: +4.9% Aug '99 to Sep '99: +4.9% Sep '98 to Sep '99: +4.7% YTD '98 to YTD '99: +4.7% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Aug '99 to Sep '99: -2.4% Sep '98 to Sep '99: +0.4% YTD '98 to YTD '99: +1.3% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Aug '99 to Sep '99: -2.1% Sep '98 to Sep '99: +4.6% YTD '98 to YTD '99: 0.0% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Aug '99 to Sep '99: +7.3% Sep '98 to Sep '99: +8.4% YTD '98 to YTD '99: +8.3%

298

Adjusted Growth Rates*  

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

Oct '99 to Nov '99: +0.1% Oct '99 to Nov '99: +0.1% Nov '98 to Nov '99: +5.5% YTD '98 to YTD '99: +4.5% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Oct '99 to Nov '99: -0.7% Nov '98 to Nov '99: +1.7% YTD '98 to YTD '99: +1.1% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Oct '99 to Nov '99: +2.5% Nov '98 to Nov '99: +6.0% YTD '98 to YTD '99: +0.8% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Oct '99 to Nov '99: +9.7% Nov '98 to Nov '99: +2.2% YTD '98 to YTD '99: +6.2%

299

Adjusted Growth Rates*  

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

Sep '99 to Oct '99: +3.9% Sep '99 to Oct '99: +3.9% Oct '98 to Oct '99: +2.3% YTD '98 to YTD '99: +4.4% U.S. Motor Gasoline Sales 8,000 9,000 10,000 11,000 12,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Sep '99 to Oct '99: -0.2% Oct '98 to Oct '99: -0.9% YTD '98 to YTD '99: +1.0% U.S. Kerosene-Type Jet Fuel Sales 1,500 1,600 1,700 1,800 1,900 2,000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Sep '99 to Oct '99: -1.9% Oct '98 to Oct '99: -0.7% YTD '98 to YTD '99: +0.4% U.S. Propane Sales 600 800 1,000 1,200 1,400 1,600 1,800 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Millions of Gallons 1997 1998 1999 Adjusted Growth Rates* Sep '99 to Oct '99: -2.1% Oct '98 to Oct '99: -6.4% YTD '98 to YTD '99: +6.6%

300

Distortionless optical pulse propagation in a three-level medium  

Science Journals Connector (OSTI)

We report on computer-generated solutions to the coupled matter-field equations which provide the first evidence for distortionless optical pulse propagation in an absorbing medium of three-level atoms. The associated phenomenon represents the three-level equivalent of self-induced transparency in two-level atoms. Results have application to the propagation of short, coherent optical pulses in a medium in which the atoms have two distinct transition frequencies in near resonance with the pulse carrier frequency. We relate in particular to the case of pulse propagation in a magnetically perturbed sodium vapor where the pulse carrier frequency is tuned near the frequencies of the well-known sodium D lines. Here we obtain particular solutions corresponding to three and five peak pulses with "areas" of approximately 6? and 10?, respectively. The solutions are strongly supported by a number of analytical results. In particular, simple algebraic relations are found which give the populations of the levels in terms of the field variables.

J. Higginbotham; R. T. Deck; D. G. Ellis

1977-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

Transportation Rates For Fishery Products  

E-Print Network [OSTI]

express (Railway Express Agency), and motor carriers. Air transporta- tion and water transportation 2 Rail-freight rates 2 Rail-express rates 3 Motor-carrier rates 3 Protective-service charges 4 used in sample 7 2. Rail-express rate index: Routes used in sample 7 3. Motor-carrier rate index

302

October 1996 - September 2001 Wholesale Power Rates (rates/previous...  

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

affecting a specific power purchase. For more specific information see: 1996 Final Wholesale Power and Transmission Rate Schedules: Power Rates (PDF, 84 pages, 188 kb) Ancillary...

303

Tier 2 Vintage Rate Workshop  

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

4 Tier 2 Rate Alternatives Tier 2 Rate Alternatives Load Growth Rate BPA commits to meet Load Following customers' load growth placed on BPA for the term of the commitment period...

304

Plasma Adiabatic Lapse Rate  

Science Journals Connector (OSTI)

The plasma analog of an adiabatic lapse rate (or temperature variation with height) in atmospheric physics is obtained. A new source of plasma temperature gradient in a binary ion species mixture is found that is proportional to the concentration gradient ??? and difference in average ionization states Z2-Z1. Application to inertial-confinement-fusion implosions indicates a potentially strong effect in plastic (CH) ablators that is not modeled with mainline (single-fluid) simulations. An associated plasma thermodiffusion coefficient is derived, and charge-state diffusion in a single-species plasma is also predicted.

Peter Amendt; Claudio Bellei; Scott Wilks

2012-08-16T23:59:59.000Z

305

What Lattice QCD tell us about the Landau Gauge Infrared Propagators  

E-Print Network [OSTI]

The calculation of the Landau gauge gluon propagator performed in Coimbra using lattice QCD simulations is reviewed. Particular attention is given to the behavior of the gluon propagator in the infrared region and the value of $D(0)$. In the second part of the article, the modeling of the lattice data using massive type propagators and Gribov type propagators is discussed. Four different mass scales are required to describe the propagator over the full range of momenta accessed by the simulations discussed here. Furthermore, assuming a momentum dependent gluon mass, we sketch on its functional dependence.

O. Oliveira; P. J. Silva; P. Bicudo

2011-01-31T23:59:59.000Z

306

Characteristics of spot-market rate indexes for truckload transportation  

E-Print Network [OSTI]

In the truckload transportation industry in the United States, a number of indexes are published that attempt to measure changes in rates, but no single index has emerged as an industry standard. Industry participants, ...

Bignell, Andrew (Andrew Souglas)

2013-01-01T23:59:59.000Z

307

Analysis of Tube Failure Propagation due to Overheating in a Prototype LMFBR Steam-Generator Geometry by Using QUARK-LP Ver.4  

SciTech Connect (OSTI)

A computer code QUARK-LP had been developed to analyze a leak propagation due to overheating in steam generator (SG) heat-transfer tubes of a liquid-metal cooled fast breeder reactor (LMFBR). In Version 4, the reaction zone was divided into three parts; (1) the steam rich zone, (2) the mixing zone and (3) the sodium rich zone, depending on the location from the failed tub. This version includes RELAP5/MOD3 to analyze thermal hydraulics of water/steam in detail. In the analysis using this computer code it was confirmed that leak propagation due to overheating does not happen in the Japanese prototype LMFBRs' SG as was revealed in the analysis of another organization. From the viewpoint of probabilistic safety assessment (PSA) for RIR (risk informed regulation), the applicability of QUARK-LP Version 4 to the analysis of leak propagation due to overheating was examined on a hypothetically severe situation. In order to simulate hypothetical leak propagation due to overheating under the rated power operation, the cover gas pressure detectors were assumed to lose their function in the analysis thereby causing a secondary tube failure intentionally. A series of leak propagation from the initial leak to the secondary leak were simulated, and the possibility of a new tube failure was examined. Based on the analyses, it has been confirmed that this code is able to be applied to the analysis of the tube failure propagation phenomena in a real plant system, and a tertiary leak does not happen even when a secondary leak was introduced intentionally as an application example. (authors)

Yoshihisa, Shindo; Kazuo, Haga [Incorporated Administrative Agency Japan Nuclear Energy Safety Organization (JNES), 4-3-20 Toranomon, Minato-ku, Tokyo 105-0001 (Japan)

2004-07-01T23:59:59.000Z

308

REQUEST FOR CHANGE OF RECORD Name Change  

E-Print Network [OSTI]

(ex. from variation to legal name) or Add Middle Name/Initial ­ Copy of birth certificate, or valid U. Documentation Required for Date of Birth Changes: Copy of birth certificate, or valid U.S. passportREQUEST FOR CHANGE OF RECORD Name Change Social Security Number Change Date of Birth Change

309

Global Change Biology (2000) 6, 317328 Soil Carbon Sequestration and Land-Use Change: Processes and  

E-Print Network [OSTI]

Global Change Biology (2000) 6, 317­328 Soil Carbon Sequestration and Land-Use Change: Processes in enhanced soil carbon sequestration with changes in land-use and soil management. We review literature, and indicates the relative importance of some factors that influence the rates of organic carbon sequestration

Post, Wilfred M.

310

The effects of standardized tax rates, average tax rates, and the distribution of income on tax progressivity  

Science Journals Connector (OSTI)

This study examines the changes in US individual income tax progressivity over the 1986–2003 period using the indexes developed by [Kakwani, N.C., 1976. Measurement of tax progressivity: An international comparison. Economic Journal 87(March), 71–80]. Although progressivity over this time frame has generally been studied in the literature, we provide additional insights by decomposing the changes in index values to account for the effects of concurrent changes in the standardized tax rates, average tax rates, and the income distribution. The decomposition should prove to be particularly useful when different summary indexes lead to conflicting conclusions about progressivity changes, as is often the case. From a policy standpoint, we show that it is the standardized tax rates, a derivative of the legislated tax rates, which need to be monitored and managed to offset the negative progressivity effects of increasing before-tax income inequality.

Govind S. Iyer; Andrew Schmidt; Ananth Seetharaman

2008-01-01T23:59:59.000Z

311

The economics of abrupt climate change  

Science Journals Connector (OSTI)

...rate of growth in per capita consumption. Positive...changes in world GDP associated with mitigation...competitive renewable-energy technologies? There...current levels of demand, and current estimates...for non-renewable energy sources. In principle...

2003-01-01T23:59:59.000Z

312

Rate types for stream programs  

Science Journals Connector (OSTI)

We introduce RATE TYPES, a novel type system to reason about and optimize data-intensive programs. Built around stream languages, RATE TYPES performs static quantitative reasoning about stream rates -- the frequency of data items in a stream being ... Keywords: data processing rates, data throughput, performance reasoning, stream programming, type systems

Thomas W. Bartenstein, Yu David Liu

2014-10-01T23:59:59.000Z

313

Quantum gravitational corrections to propagator in arbitrary spacetimes  

E-Print Network [OSTI]

The action for a relativistic free particle of mass m receives a contribution $-m R(x,y)$ from a path of length R(x,y) connecting the events $x^i$ and $y^i$. Using this action in a path integral, one can obtain the Feynman propagator for a spinless particle of mass m in any background spacetime. If one of the effects of quantizing gravity is to introduce a minimum length scale $L_P$ in the spacetime, then one would expect the segments of paths with lengths less than $L_P$ to be suppressed in the path integral. Assuming that the path integral amplitude is invariant under the `duality' transformation ${\\cal R}\\to L_P^2/R$, one can calculate the modified Feynman propagator in an arbitrary background spacetime. It turns out that the key feature of this modification is the following: The proper distance $(\\Delta x)^2$ between two events, which are infinitesimally separated, is replaced by $\\Delta x^2 + L_P^2$; that is the spacetime behaves as though it has a `zero-point length' of $L_P$. This equivalence suggests a deep relationship between introducing a `zero-point-length' to the spacetime and postulating invariance of path integral amplitudes under duality transformations. In the Schwinger's proper time description of the propagator, the weightage for a path with proper time s becomes $m(s+L_P^2/s)$ rather than as ms. As to be expected, the ultraviolet behavior of the theory is improved significantly and divergences will disappear if this modification is taken into account. Implications of this result are discussed.

T. Padmanabhan

1997-03-18T23:59:59.000Z

314

NREL: PVWatts - How to Change Parameters  

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

Change Parameters Change Parameters The PVWattsTM calculator allows users to substitute its default input parameters with custom values. Learn how to change the PVWatts parameters for: DC rating DC-to-AC derate factor Array type Tilt angle Azimuth angle Electricity cost DC Rating The size of a photovoltaic (PV) system is its nameplate DC power rating. This is determined by adding the PV module power listed on the nameplates of the PV modules in watts and then dividing the sum by 1,000 to convert it to kilowatts (kW). PV module power ratings are for standard test conditions (STC) of 1,000 W/m2 solar irradiance and 25°C PV module temperature. The default PV system size is 4 kW. This corresponds to a PV array area of approximately 35 m2 (377 ft2). Caution: For correct results, the DC rating input must be the nameplate DC

315

Charged-Particle Thermonuclear Reaction Rates: IV. Comparison to Previous Work  

E-Print Network [OSTI]

We compare our Monte Carlo reaction rates (see Paper II of this series) to previous results that were obtained by using the classical method of computing thermonuclear reaction rates. For each reaction, the comparison is presented using two types of graphs: the first shows the change in reaction rate uncertainties, while the second displays our new results normalized to the previously recommended reaction rate. We find that the rates have changed significantly for almost all reactions considered here. The changes are caused by (i) our new Monte Carlo method of computing reaction rates (see Paper I of this series), and (ii) newly available nuclear physics information (see Paper III of this series).

Christian Iliadis; Richard Longland; Art Champagne; Alain Coc

2010-04-23T23:59:59.000Z

316

Effect of Spatial Heterogeneity on Near-Limit Propagation of a Stable Detonation  

E-Print Network [OSTI]

The effect of introducing a spatial heterogeneity into an explosive medium is studied computationally by examining the detonation velocity near the limit to propagation in a thin explosive layer. The explosive system studied is an ideal gas with a single exothermic reaction governed by a pressure-dependent reaction rate ($p^n$) with a pressure exponent of $n = 3$. A pressure-dependent reaction rate, rather than the exponential dependence of reaction on temperature of Arrhenius kinetics, is used so that the detonation wave is stable in the homogeneous case and can be modelled with simple, analytical techniques, and thus the effect of introducing heterogeneity can be clearly identified. The two-dimensional slab of explosive is bounded by a layer of inert gas with the same thermodynamic properties as the explosive. The heterogeneity is introduced into the explosive via a large-amplitude, two-dimensional sinusoidal ripple in density in the initialization of the simulation, while maintaining a constant pressure. T...

Li, Jianling; Higgins, Andrew J

2014-01-01T23:59:59.000Z

317

Theory of Acoustical Wave Propagation in Porous Media  

Science Journals Connector (OSTI)

A theory is developed to describe the propagation of sound waves in a rigid isotropic and homogeneous porous medium filled with a compressible fluid including both the effect of viscous dissipation and the effect of thermal conduction. An expression for the conductance as a function of the frequency is derived by assuming a capillaric model. A comparison is made with independent experimental results and close agreement with the theoretical results is obtained. A discussion of the structural parameters including a description of a method for determining their values at a given frequency is also made.

Peter G. Smith; Robert A. Greenkorn

1972-01-01T23:59:59.000Z

318

Ultra High Energy Cosmic Rays: origin and propagation  

E-Print Network [OSTI]

We discuss the basic difficulties in understanding the origin of the highest energy particles in the Universe - the ultrahigh energy cosmic rays (UHECR). It is difficult to imagine the sources they are accelerated in. Because of the strong attenuation of UHECR on their propagation from the sources to us these sources should be at cosmologically short distance from us but are currently not identified. We also give information of the most recent experimental results including the ones reported at this conference and compare them to models of the UHECR origin.

Todor Stanev

2007-11-14T23:59:59.000Z

319

Energy dissipation in wave propagation in general relativistic plasma  

E-Print Network [OSTI]

Based on a recent communication by the present authors the question of energy dissipation in magneto hydrodynamical waves in an inflating background in general relativity is examined. It is found that the expanding background introduces a sort of dragging force on the propagating wave such that unlike the Newtonnian case energy gets dissipated as it progresses. This loss in energy having no special relativistic analogue is, however, not mechanical in nature as in elastic wave. It is also found that the energy loss is model dependent and also depends on the number of dimensions.

Ajanta Das; S. Chatterjee

2009-11-03T23:59:59.000Z

320

Model of crack propagation in a clay soil  

E-Print Network [OSTI]

of independent variables for maximum R to determine A for crack de th, 2 Number of variables in model (p) R Variables in model 0. 703913 0. 916176 0. 988151 0. 997207 0. 999328 H*CLrH*M~CL H, H*M, H~M*CL H, CL, H*M, H*M*CL H, CL, H"M, H*CL, H...: Agricultural Engineering MODEL OF CRACK PROPAGATION IN A CLAY SOIL A Thesis by PATRICK EDWIDGE CARRIERE Approved as to style and content by: John L. Nieber (Chairman of Committee) Donald L. Reddell (Member) Kirk W, Brown (Member ) Wilbert H...

Carriere, Patrick Edwidge

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "rate change propagation" 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

On the propagation of vorticity in multi-species plasmas  

SciTech Connect (OSTI)

The evolution of plasmas formed by several species is governed by one fluid equation for each species, all of them linked by an electromagnetic forcing and collisional terms, and the Maxwell equations. It is found that in the collisionless case, the field lines of a combination of fluid vorticity and magnetic field are transported by the flow as material points. In consequence, the vorticity propagates at the same velocity as the magnetic field. This is studied in depth for a number of simple configurations, showing that the vorticity travels at a certain fraction of the speed of light, depending on the size of the spatial mode.

Núñez, Manuel [Department of Algebra and Mathematical Analysis and IMUVA, Universidad de Valladolid, 47005 Valladolid (Spain)] [Department of Algebra and Mathematical Analysis and IMUVA, Universidad de Valladolid, 47005 Valladolid (Spain)

2013-12-15T23:59:59.000Z

322

Sound propagation in urban areas: A periodic disposition of buildings  

Science Journals Connector (OSTI)

A numerical simulation of background noise propagation is performed for a network of hexagonal buildings. The obtained results suggest that the prediction of background noise in urban spaces is possible by means of a modified diffusion equation using two parameters: the diffusion coefficient that expresses the spreading out of noise resulting from diffuse scattering and multiple reflections by buildings, and an attenuation term accounting for the wall absorption, atmospheric attenuation, and absorption by the open top. The dependence of the diffusion coefficient with geometrical shapes and the diffusive nature of the buildings are investigated in the case of a periodic disposition of hexagonal buildings.

J. Picaut; J. Hardy; L. Simon

1999-10-01T23:59:59.000Z

323

Electrochemical Corrosion Rate Sensors for Waste Incineration Applications  

SciTech Connect (OSTI)

Electrochemical corrosion rate sensors work in high temperature waste incineration applications where ash is deposited. The ash serves as the electrolyte for electrochemical measurements, such as liner polarization resistance, electrochemical noise, and harmonic distortion analyses. Results to date have shown that these types of sensors respond qualitatively to changes in temperature, gas composition, alloy composition, and type of ash. Several years of research have shown that high temperature corrosion rate probes need to be better understood before corrosion rate can be used as a process variable by power plant operators. More recent research has shown that electrochemical corrosion probes typically measure lower corrosion rates than those measured by standard mass loss techniques. While still useful for monitoring changes in corrosion rates, absolute probe corrosion rates will need a calibration factor to be useful. Ideas for research that may help resolve these issues are presented.

Covino, B.S., Jr.; Bullard, S.J.; Matthes, S.A.; Holcomb, G.R.; Ziomek-Moroz, M.; Eden, D.A. (Honeywell Intercorr)

2007-03-01T23:59:59.000Z

324

Intramolecular ET Rates in Modified Ferrocytochromes c  

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

Intramolecular Electron-Transfer Rates on Driving Force, pH, Intramolecular Electron-Transfer Rates on Driving Force, pH, and Temperature in Ammineruthenium-Modified Ferrocytochromes c James F. Wishart, Ji Sun, Myung Cho, Chang Su, and Stephan S. Isied J. Phys. Chem. B 101, 687-693 (1997) [Find paper at ACS Publications] or use ACS Articles on Request Abstract: Several ruthenium ammine complexes were used to modify horse-heart cytochrome c at histidine-33, creating a series of (NH3)4(L)Ru-Cyt c derivatives (L = H2O/OH-, ammonia, 4-ethylpyridine, 3,5-lutidine, pyridine, isonicotinamide, N-methylpyrazinium) with a wide range of driving forces for Fe-to-Ru electron transfer (-DG° = -0.125 to +0.46 eV). Electron-transfer rates and activation parameters were measured by pulse radiolysis using azide or carbonate radicals. The driving-force dependence

325

Enclosure 2 DOE's Position on Dose Rate "Measurement Uncertainty"  

E-Print Network [OSTI]

uncertainty concerns, as cited in their Technical Support Document (TSD), "Review of DOE Planned Change radiation survey instruments used to measure radiation dose rates in the field from waste containers are needed to provide this protection to workers. The purpose of these surface dose rate measurements

326

Analysis of Water Rate Escalations across the United States  

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

Analysis of Water Rate Escalations across the United States Analysis of Water Rate Escalations across the United States Elisabeth Giever Kate McMordie Stoughton Susan Loper October 2010 Executive Summary This document provides an overview of an analysis that examined changes in water rates across the country to develop a basic understanding of water rate escalations and how water rates are impacted from outside influences. The analysis investigated how water rates are influenced by the geographic region, water source, and drought tendencies. For example, one observation of the analysis found that cities located in regions of long term drought may have higher escalation rates than cities in water rich environments. Typical escalation rates were found to be between 4 and 8%. This information can be

327

SOLAR CYCLE PROPAGATION, MEMORY, AND PREDICTION: INSIGHTS FROM A CENTURY OF MAGNETIC PROXIES  

SciTech Connect (OSTI)

The solar cycle and its associated magnetic activity are the main drivers behind changes in the interplanetary environment and Earth's upper atmosphere (commonly referred to as space weather). These changes have a direct impact on the lifetime of space-based assets and can create hazards to astronauts in space. In recent years there has been an effort to develop accurate solar cycle predictions (with aims at predicting the long-term evolution of space weather), leading to nearly a hundred widely spread predictions for the amplitude of solar cycle 24. A major contributor to the disagreement is the lack of direct long-term databases covering different components of the solar magnetic field (toroidal versus poloidal). Here, we use sunspot area and polar faculae measurements spanning a full century (as our toroidal and poloidal field proxies) to study solar cycle propagation, memory, and prediction. Our results substantiate predictions based on the polar magnetic fields, whereas we find sunspot area to be uncorrelated with cycle amplitude unless multiplied by area-weighted average tilt. This suggests that the joint assimilation of tilt and sunspot area is a better choice (with aims to cycle prediction) than sunspot area alone, and adds to the evidence in favor of active region emergence and decay as the main mechanism of poloidal field generation (i.e., the Babcock-Leighton mechanism). Finally, by looking at the correlation between our poloidal and toroidal proxies across multiple cycles, we find solar cycle memory to be limited to only one cycle.

Munoz-Jaramillo, Andres; DeLuca, Edward E. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Dasi-Espuig, Maria [Max-Planck-Institut fuer Sonnensystemforschung, D-37191 Katlenburg-Lindau (Germany); Balmaceda, Laura A., E-mail: amunoz@cfa.harvard.edu, E-mail: edeluca@cfa.harvard.edu, E-mail: dasi@mps.mpg.de, E-mail: lbalmaceda@icate-conicet.gob.ar [Institute for Astronomical, Terrestrial and Space Sciences (ICATE-CONICET), San Juan (Argentina)

2013-04-20T23:59:59.000Z

328

Review: Global Climate Change  

E-Print Network [OSTI]

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

Smith, Jennifer

2013-01-01T23:59:59.000Z

329

Infrastructure Institutional Change Principle  

Broader source: Energy.gov [DOE]

Research shows that changes in infrastructure prompt changes in behavior (for better or worse). Federal agencies can modify their infrastructure to promote sustainability-oriented behavior change,...

330

Lab announces security changes  

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

Lab announces security changes Lab announces security changes The Laboratory is implementing several changes to its security procedures as the result of a recent security...

331

Airborne sound propagation over sea during offshore wind farm piling  

Science Journals Connector (OSTI)

Offshore piling for wind farm construction has attracted a lot of attention in recent years due to the extremely high noise emission levels associated with such operations. While underwater noise levels were shown to be harmful for the marine biology the propagation of airborne piling noise over sea has not been studied in detail before. In this study detailed numerical calculations have been performed with the Green's Function Parabolic Equation (GFPE) method to estimate noise levels up to a distance of 10?km. Measured noise emission levels during piling of pinpiles for a jacket-foundation wind turbine were assessed and used together with combinations of the sea surface state and idealized vertical sound speed profiles (downwind sound propagation). Effective impedances were found and used to represent non-flat sea surfaces at low-wind sea states 2 3 and 4. Calculations show that scattering by a rough sea surface which decreases sound pressure levels exceeds refractive effects which increase sound pressure levels under downwind conditions. This suggests that the presence of wind even when blowing downwind to potential receivers is beneficial to increase the attenuation of piling sound over the sea. A fully flat sea surface therefore represents a worst-case scenario.

2014-01-01T23:59:59.000Z

332

Turbulence intensity pulse propagation with self-consistent nonlinear noise  

SciTech Connect (OSTI)

A model of turbulence intensity spreading with self-consistent nonlinear noise is derived systematically for the simple dynamical model of resistivity gradient driven turbulence. Local effective drive, thermal conduction damping, nonlinear coupling, and spatial scattering effects are included. As a consequence of nonlinear mode coupling processes (i.e., triad mode interactions), turbulence energy can be spatially scattered, leading to turbulence propagation and spreading. However, the range of any nonlinear mode interactions of the background with a test mode is restricted to within a few mode scale widths from the test mode rational surface. The speed of a turbulent spreading front is calculated. This front speed is effectively constant on macroscopic scales. We show that the effect of self-consistent nonlinear noise on the intensity front speed is modest, as a consequence of the ordering {Delta}{sub c}propagation are identified and explained.

Wang, Z. H. [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China); Department of Physics and Center for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, California 92093-0424 (United States); Diamond, P. H. [Department of Physics and Center for Astrophysics and Space Sciences, University of California at San Diego, La Jolla, California 92093-0424 (United States); WCI Center for Fusion Theory, National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon 305-333 (Korea, Republic of); Guercan, Oe. D. [Laboratoire de Physique des Plasmas, Ecole Polytechnique-CNRS, 91128 Palaiseau Cedex (France); Garbet, X. [CEA, IRFM, F-13108 Saint Paul Lez Durance (France); Wang, X. G. [School of Physics, Peking University, Beijing 100871 (China)

2011-03-15T23:59:59.000Z

333

Propagation in 3D of microwaves through density perturbations  

E-Print Network [OSTI]

Simulations using 3D and 2D full-wave codes have shown that edge filaments in tokamak plasmas can significantly affect the propagation of microwaves across a broad frequency spectrum, resulting in scattering angles of up to 46 degrees. Parameter scans were carried out for density perturbations comparable in width and amplitude to MAST filaments and the effect on the measured emission was calculated. 3D effects were discovered in the case of an obliquely incident beam. In general, the problem of EM propagation past wavelength-sized 3D inhomogeneities is not well understood, yet is of importance for both heating and diagnostic applications in the electron cyclotron frequency range for tokamaks, as well as atmospheric physics. To improve this understanding, a new cold-plasma code, EMIT-3D, was written to extend full-wave microwave simulations in magnetized plasmas to 3D, and make comparisons to the existing 2D code IPF-FDMC. This work supports MAST experiments using the SAMI diagnostic to image microwave emissio...

Williams, T R N; O'Brien, M R; Vann, R G L

2013-01-01T23:59:59.000Z

334

Electromagnetic wave propagation through an overdense magnetized collisional plasma layer  

SciTech Connect (OSTI)

The results of investigations into the feasibility of using a magnetic window to propagate electromagnetic waves through a finite-sized overdense plasma slab are described. We theoretically calculate the transmission coefficients for right- and left-handed circularly polarized plane waves through a uniform magnetized plasma slab. Using reasonable estimates for the plasma properties expected to be found in the ionized shock layer surrounding a hypersonic aircraft traveling in the earth's upper atmosphere (radio blackout conditions), and assuming a 1 GHz carrier frequency for the radio communications channel, we find that the required magnetic field for propagation of right-handed circularly polarized, or whistler, waves is on the order of a few hundred gauss. Transmission coefficients are calculated as a function of sheath thickness and are shown to be quite sensitive to the electron collision frequency. One-dimensional particle-in-cell simulations are shown to be in good agreement with the theory. These simulations also demonstrate that Ohmic heating of the electrons can be considerable. Two- and three-dimensional particle-in-cell simulations using a simplified waveguide and antenna model illustrate the same general transmission behavior as the theory and one-dimensional simulations. In addition, a net focusing effect due to the plasma is also observed in two and three dimensions. These simulations can be extended to design and analyze more realistic waveguide and antenna models.

Thoma, C.; Rose, D. V.; Miller, C. L.; Clark, R. E.; Hughes, T. P. [Voss Scientific LLC, Albuquerque, New Mexico 87108 (United States)

2009-08-15T23:59:59.000Z

335

Propagating Waves in a Monolayer of Gas-Fluidized Rods  

E-Print Network [OSTI]

We report on an observation of propagating compression waves in a quasi-two-dimensional monolayer of apolar granular rods fluidized by an upflow of air. The collective wave speed is an order of magnitude faster than the speed of the particles. This gives rise to anomalously large number fluctuations dN ~ $N^{0.72 \\pm 0.04}$, which are greater than ordinary number fluctuations of N^{1/2}. We characterize the waves by calculating the spatiotemporal power spectrum of the density. The position of observed peaks, as a function of frequency w and wavevector k, yields a linear dispersion relationship in the long-time, long-wavelength limit and a wavespeed c = w/k. Repeating this analysis for systems at different densities and air speeds, we observe a linear increase in the wavespeed with increasing packing fraction with no dependence on the airflow. Although air-fluidized rods self-propel individually or in dilute collections, the parallel and perpendicular root-mean-square speeds of the rods indicate that they no longer self-propel when propagating waves are present. Based on this mutual exclusivity, we map out the phase behavior for the existence of waves vs self-propulsion as a function of density and fluidizing airflow.

L. J. Daniels; D. J. Durian

2010-11-12T23:59:59.000Z

336

Influence of Dark Matter on Light Propagation in Solar System  

E-Print Network [OSTI]

We investigated the influence of dark matter on light propagation in the solar system. We assumed the spherical symmetry of spacetime and derived the approximate solution of the Einstein equation, which consists of the gravitational attractions caused by the central celestial body, i.e. the Sun, and the dark matter surrounding it. We expressed the dark matter density in the solar system in the following simple power-law form, $\\varrho(t, r) = \\rho(t)(\\ell/r)^k$, where $t$ is the coordinate time; $r$, the radius from the central body; $\\ell$, the normalizing factor; $k$, the exponent characterizing $r$-dependence of dark matter density; and $\\rho(t)$, the arbitrary function of time $t$. On the basis of the derived approximate solution, we focused on light propagation and obtained the additional corrections of the gravitational time delay and the relative frequency shift caused by the dark matter. As an application of our results, we considered the secular increase in the astronomical unit reported by Krasinsky and Brumberg (2004) and found that it was difficult to provide an explanation for the observed $d{\\rm AU}/dt = 15 \\pm 4 ~[{\\rm m/century}]$.

Hideyoshi Arakida

2009-11-17T23:59:59.000Z

337

The propagation of light pollution in the atmosphere  

E-Print Network [OSTI]

Methods to map artificial night sky brightness and stellar visibility across large territories or their distribution over the entire sky at any site are based on the computation of the propagation of light pollution with Garstang models, a simplified solution of the radiative transfer problem in the atmosphere which allows a fast computation by reducing it to a ray-tracing approach. We present here up-to-date Extended Garstang Models (EGM) which provide a more general numerical solution for the radiative transfer problem applied to the propagation of light pollution in the atmosphere. We also present the LPTRAN software package, an application of EGM to high-resolution DMSP-OLS satellite measurements of artificial light emissions and to GTOPO30 digital elevation data, which provides an up-to-date method to predict the artificial brightness distribution of the night sky at any site in the World at any visible wavelength for a broad range of atmospheric situations and the artificial radiation density in the atm...

Cinzano, Pierantonio

2012-01-01T23:59:59.000Z

338

Modeling of offshore wind turbine noise radiation and propagation  

Science Journals Connector (OSTI)

Noisegenerated by offshore wind turbine and support structure can radiate and propagate through the air water and sediment. Predicting noise levels around wind turbinestructures at sea is required for the estimation of effects of the noise on marine life. To predict radiated noise we used a finite element analysis(FEA) of a cylindrical shell model of a monopile structure. In the finite element modeling transient modal dynamic analysis and steady state dynamic analysis (direct and modal) were implemented to simulate both construction and operational noise. The effect of various sediment types and foundation designs are investigated. The FEA package used was ABAQUS version 6.10. The output of the FEAanalysis is used as starting field for acoustic propagation models such as PE to produce long range predictions. We present predictions of particle velocity at the structure-acoustic medium interface and sound pressure level as function of frequency at various distances from the structure. Laboratory experiments using scale models of the cylindrical shell have been carried out to verify the noise predictions. Comparison of the FEAmodel results and experimental data will be presented.

Huikwan Kim; Gopu R. Potty; James H. Miller; Christopher Baxter

2011-01-01T23:59:59.000Z

339

294 IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 10, 2011 A Magnetic Field-Independent Absorbing Boundary  

E-Print Network [OSTI]

been generated to simulate propagation from lightning strikes, Schumann resonances, re- mote sensing

Simpson, Jamesina J.

340

electric rates | OpenEI  

Open Energy Info (EERE)

electric rates electric rates Dataset Summary Description This dataset, compiled by NREL and Ventyx, provides average residential, commercial and industrial electricity rates by zip code for both investor owned utilities (IOU) and non-investor owned utilities. Note: the file includes average rates for each utility, but not the detailed rate structure data found in the database available via the zip-code look-up feature on the OpenEI Utilities page (http://en.openei.org/wiki/Gateway:Utilities). The data was released by NREL/Ventyx in February 2011. Source NREL and Ventyx Date Released February 24th, 2012 (2 years ago) Date Updated Unknown Keywords electric rates rates US utilities Data text/csv icon IOU rates by zipcode (csv, 1.7 MiB) text/csv icon Non-IOU rates by zipcode (csv, 2.1 MiB)

Note: This page contains sample records for the topic "rate change propagation" 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

Rate Schedules | Department of Energy  

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

Rate Schedules Rate Schedules Rate Schedules One of the major responsibilities of Southeastern is to design, formulate, and justify rate schedules. Repayment studies prepared by the agency determine revenue requirements and appropriate rate levels and these studies for each of Southeastern's four power marketing systems are updated annually. They demonstrate the adequacy of the rates for each system. Rates are considered to be adequate when revenues are sufficient to repay all costs associated with power production and transmission costs, which include the amortization of the Federal investment allocated to power. Latest Rate Schedules October 1, 2012 ALA-1-N Wholesale Power Rate Schedule Area: PowerSouth Energy Cooperative System: Georgia-Alabama-South Carolina October 1, 2012

342

2007-2009 Power Rates Quarterly Updates (pbl/rates)  

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

(PFR) Firstgov FY 2007 2009 Power Rates Quarterly Updates In BPAs 2007-2009 Wholesale Power Rate Case (WP-07), BPA agreed that it would post reports about BPAs power...

343

WP-07 Power Rate Case (rates/ratecases)  

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

Rate Cases Financial Choices (2003-06) Power Function Review (PFR) Firstgov 2007 Wholesale Power (WP-07) Rate Case Related Links: Power Function Review (PFR) On July 17, 2006,...

344

National Utility Rate Database: Preprint  

SciTech Connect (OSTI)

When modeling solar energy technologies and other distributed energy systems, using high-quality expansive electricity rates is essential. The National Renewable Energy Laboratory (NREL) developed a utility rate platform for entering, storing, updating, and accessing a large collection of utility rates from around the United States. This utility rate platform lives on the Open Energy Information (OpenEI) website, OpenEI.org, allowing the data to be programmatically accessed from a web browser, using an application programming interface (API). The semantic-based utility rate platform currently has record of 1,885 utility rates and covers over 85% of the electricity consumption in the United States.

Ong, S.; McKeel, R.

2012-08-01T23:59:59.000Z

345

Rating the NRF's rating system Michael I. Cherry  

E-Print Network [OSTI]

the NRF's raison d'être--thetrainingofhigh-qualityresearch manpower. The progress of the rating systemRating the NRF's rating system Michael I. Cherry a* and Mark J. Gibbons b T HE LATEST REVIEW OF THE NATIONAL Research Foundation (NRF), chaired by Wieland Gevers, and released surreptitiously

Wagner, Stephan

346

Temperature dependent nucleation, propagation, and annihilation of domain walls in all-perpendicular spin-valve nanopillars  

SciTech Connect (OSTI)

We present a study of the temperature dependence of the switching fields in Co/Ni-based perpendicularly magnetized spin-valves. While magnetization reversal of all-perpendicular Co/Ni spin valves at ambient temperatures is typically marked by a single sharp step change in resistance, low temperature measurements can reveal a series of resistance steps, consistent with non-uniform magnetization configurations. We propose a model that consists of domain nucleation, propagation, and annihilation to explain the temperature dependence of the switching fields. Interestingly, low temperature (<30?K) step changes in resistance that we associate with domain nucleation have a bimodal switching field and resistance step distribution, attributable to two competing nucleation pathways.

Gopman, D. B., E-mail: daniel.gopman@physics.nyu.edu; Kent, A. D. [Department of Physics, New York University, New York, New York 10003 (United States); Bedau, D. [Department of Physics, New York University, New York, New York 10003 (United States); HGST San Jose Research Center, San Jose, California 95135 (United States); Mangin, S. [Institut Jean Lamour, UMR CNRS 7198 Université de Lorraine, Nancy, France 54506 (France); Fullerton, E. E. [CMRR, University of California at San Diego, La Jolla, California 92093 (United States); Katine, J. A. [HGST San Jose Research Center, San Jose, California 95135 (United States)

2014-03-21T23:59:59.000Z

347

SCHOOL OF MEDICINE TELECOMMUNICATIONS RATE  

E-Print Network [OSTI]

SCHOOL OF MEDICINE TELECOMMUNICATIONS RATE BACKGROUND The University recently the desktop phone service costs back to individual units/departments by creating a telecommunications rate in the Other Expenses category of the budget as a "Telecommunications Charge". NOTE- direct charging

Straight, Aaron

348

Climate Change and Extinctions  

E-Print Network [OSTI]

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

Sinervo, Barry

2013-01-01T23:59:59.000Z

349

Universal Algebraic Relaxation of Fronts Propagating into an Unstable State and Implications for Moving Boundary Approximations  

Science Journals Connector (OSTI)

We analyze the relaxation of fronts propagating into unstable states. While “pushed” fronts relax exponentially like fronts propagating into a metastable state, “pulled” or “linear marginal stability” fronts relax algebraically. As a result, for thin fronts of this type, the standard moving boundary approximation fails. The leading relaxation terms for velocity and shape are of order 1/t and 1/t3/2. These universal terms are calculated exactly with a new systematic analysis that unifies various heuristic approaches to front propagation.

Ute Ebert and Wim van Saarloos

1998-02-23T23:59:59.000Z

350

2007 Wholesale Power Rate Schedules : 2007 General Rate Schedule Provisions.  

SciTech Connect (OSTI)

This schedule is available for the contract purchase of Firm Power to be used within the Pacific Northwest (PNW). Priority Firm (PF) Power may be purchased by public bodies, cooperatives, and Federal agencies for resale to ultimate consumers, for direct consumption, and for Construction, Test and Start-Up, and Station Service. Rates in this schedule are in effect beginning October 1, 2006, and apply to purchases under requirements Firm Power sales contracts for a three-year period. The Slice Product is only available for public bodies and cooperatives who have signed Slice contracts for the FY 2002-2011 period. Utilities participating in the Residential Exchange Program (REP) under Section 5(c) of the Northwest Power Act may purchase Priority Firm Power pursuant to the Residential Exchange Program. Rates under contracts that contain charges that escalate based on BPA's Priority Firm Power rates shall be based on the three-year rates listed in this rate schedule in addition to applicable transmission charges. This rate schedule supersedes the PF-02 rate schedule, which went into effect October 1, 2001. Sales under the PF-07 rate schedule are subject to BPA's 2007 General Rate Schedule Provisions (2007 GRSPs). Products available under this rate schedule are defined in the 2007 GRSPs. For sales under this rate schedule, bills shall be rendered and payments due pursuant to BPA's 2007 GRSPs and billing process.

United States. Bonneville Power Administration.

2006-11-01T23:59:59.000Z

351

Impact of Industrial Electric Rate Structure on Energy Conservation - A Utility Viewpiont  

E-Print Network [OSTI]

As the price of energy rises, changes in industrial electric rates will have an impact on energy usage and conservation. Utilities interested in reducing system peak demands may reflect this need in the rate structure as an incentive...

Williams, M. M.

1981-01-01T23:59:59.000Z

352

Commercial Building Asset Rating Program  

Broader source: Energy.gov [DOE]

Slides from a Commercial Building Initiative webinar outlining the Commercial Building Asset Rating Program on August 23, 2011.

353

change_address_111609  

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

CHANGE OF ADDRESS and EMERGENCY NOTIFICATION CHANGE OF ADDRESS and EMERGENCY NOTIFICATION TO: HUMAN RESOURCES DATE: Z# Social Security # Print First Name Print Middle Name or Initial Print Last Name (Currently in Payroll System) Complete appropriate changes: NAME CHANGE: Print Name Change to ADDRESS CHANGE: Mailing Address City State Zip

354

Climate Change Scoping Plan  

E-Print Network [OSTI]

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

355

Climate Change Scoping Plan  

E-Print Network [OSTI]

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

356

Probability distribution of low-altitude propagation loss from radar sea clutter data  

E-Print Network [OSTI]

: propagation loss estimation, radar clutter, probabilistic inversion Citation: Gerstoft, P., W. S. Hodgkiss, L within the marine atmospheric surface layer [Liu et al., 1979]. The refractivity profile above

Buckingham, Michael

357

E-Print Network 3.0 - acts propagation studies Sample Search...  

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

at Stony Brook, Department of Electrical Engineering and Computer Engineering, Optoelectronics Research Group Collection: Engineering 6 Maintaining State in Propagation Solvers...

358

E-Print Network 3.0 - analytical uncertainty propagation Sample...  

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

and Information Sciences 2 CE 473573 Groundwater Introduction to uncertainty analysis and error propagation Summary: CE 473573 Groundwater Fall 2011 Introduction to...

359

Wave propagation, stress relaxation, and grain-to-grain shearing in saturated, unconsolidated marine sediments  

E-Print Network [OSTI]

Wave propagation, stress relaxation, and grain-to-grain shearing in saturated, unconsolidated in saturated, unconsolidated granular materials, including marine sediments, is developed in this article

Buckingham, Michael

360

E-Print Network 3.0 - acoustic wave propagation Sample Search...  

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

N... .Schmidt, H., "Propagation of seismic and acoustic waves in horizontally stratified media... wave-number-integration approach to ... Source: Leonard, John J. - Computer...

Note: This page contains sample records for the topic "rate change propagation" 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

E-Print Network 3.0 - acoustic propagation experiment Sample...  

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

of perceptual measurements Statistics for acoustics experiments Acoustics of porous media . The second... of Waveguides: Wave propagation in a guide Mode matching ...

362

The speed of propagation of fronts for the reaction–diffusion ...  

E-Print Network [OSTI]

About a decade ago, in collaboration with M. Cristina Depassier we proved a variational characterization of the speed of propagation of fronts for rather general ...

2007-05-18T23:59:59.000Z

363

Agent-Based Simulation of Data-Driven Fire Propagation Dynamics  

Science Journals Connector (OSTI)

Real world problems such as fire propagation prediction, can often be considered as a compositional combination of multiple, simple but coupled subproblems corresponding to analytical and computational behavio...

John Michopoulos; Panagiota Tsompanopoulou…

2004-01-01T23:59:59.000Z

364

Optical Wave Propagation Simulation, Wigner Phase-Space Diagrams, and Wave Energy Confinement  

Science Journals Connector (OSTI)

The number of samples required for efficient numerical simulation of wave propagation can be determined by a combination of Wigner phase-space techniques, wave energy confinement...

Rhodes, William T; Sheridan, John T; Hennelley, Bryan M

365

Theory of Acoustical Wave Propagation in Porous Media  

Science Journals Connector (OSTI)

A theory is developed for the propagation of sound waves in a rigid isotropic and homogeneous porous medium filled with a compressible fluid including both the effect of viscous dissipation and the effect of thermal comduction. With a capillaric model assumed an expression for the permeability as a function of the frequency is also given. For very low frequencies (isothermal case) and very high frequencies (adiabatic case) the results reduce to those of a theory presented by Morse [J. Acoust. Soc. Amer. 24 696 (1952)]. The present theory can be used to determine the structural parameters of a porous system at a given frequency. Attenuation and phase factors are plotted as functions of a nondimensional frequency parameter for various combinations of the characteristic constants.

P. G. Smith; R. A. Greenkorn

1971-01-01T23:59:59.000Z

366

Origin and propagation of the highest energy cosmic rays  

E-Print Network [OSTI]

In this lecture I give an overview of shock acceleration, interactions of high energy cosmic rays with, and propagation through, the background radiation, and the resulting electron-photon cascade. I argue that while the origin of the highest energy cosmic rays is still uncertain, it is not necessary to invoke exotic models such as emission by topological defects to explain the existing data. It seems likely that shock acceleration at Fanaroff-Riley Class II radio galaxies can account for the existing data. However, new cosmic ray data, as well as better estimates of the extragalactic radiation fields and magnetic fields will be necessary before we will be certain of the origin of the highest energy particles occurring in nature.

R. J. Protheroe

1996-12-22T23:59:59.000Z

367

Markov Entropy Decomposition: A Variational Dual for Quantum Belief Propagation  

Science Journals Connector (OSTI)

We present a lower bound for the free energy of a quantum many-body system at finite temperature. This lower bound is expressed as a convex optimization problem with linear constraints, and is derived using strong subadditivity of von Neumann entropy and a relaxation of the consistency condition of local density operators. The dual to this minimization problem leads to a set of quantum belief propagation equations, thus providing a firm theoretical foundation to that approach. The minimization problem is numerically tractable, and we find good agreement with quantum Monte Carlo calculations for spin-12 Heisenberg antiferromagnet in two dimensions. This lower bound complements other variational upper bounds. We discuss applications to Hamiltonian complexity theory and give a generalization of the structure theorem of [P. Hayden et al., Commun. Math. Phys. 246, 359 (2004).] to trees in an appendix.

David Poulin and Matthew B. Hastings

2011-02-24T23:59:59.000Z

368

Pulsar polarisation below 200 MHz: Average profiles and propagation effects  

E-Print Network [OSTI]

We present the highest-quality polarisation profiles to date of 16 non-recycled pulsars and four millisecond pulsars, observed below 200 MHz with the LOFAR high-band antennas. Based on the observed profiles, we perform an initial investigation of expected observational effects resulting from the propagation of polarised emission in the pulsar magnetosphere and the interstellar medium. The predictions of magnetospheric birefringence in pulsars have been tested using spectra of the pulse width and fractional polarisation from multifrequency data. The derived spectra offer only partial support for the expected effects of birefringence on the polarisation properties, with only about half of our sample being consistent with the model's predictions. It is noted that for some pulsars these measurements are contaminated by the effects of interstellar scattering. For a number of pulsars in our sample, we have observed significant variations in the amount of Faraday rotation as a function of pulse phase, which is possi...

Noutsos, A; Kondratiev, V I; Weltevrede, P; Verbiest, J P W; Karastergiou, A; Kramer, M; Kuniyoshi, M; Alexov, A; Breton, R P; Bilous, A V; Cooper, S; Falcke, H; Grießmeier, J -M; Hassall, T E; Hessels, J W T; Keane, E F; Os?owski, S; Pilia, M; Serylak, M; Stappers, B W; ter Veen, S; van Leeuwen, J; Zagkouris, K; Anderson, K; Bähren, L; Bell, M; Broderick, J; Carbone, D; Cendes, Y; Coenen, T; Corbel, S; Eislöffel, J; Fender, R; Garsden, H; Jonker, P; Law, C; Marko, S; Masters, J; Miller-Jones, J; Molenaar, G; Osten, R; Pietka, M; Rol, E; Rowlinson, A; Scheers, B; Spreeuw, H; Staley, T; Stewart, A; Swinbank, J; Wijers, R; Wijnands, R; Wise, M; Zarka, P; van der Horst, A

2015-01-01T23:59:59.000Z

369

Seismic pulse propagation with constant Q and stable probability distributions  

E-Print Network [OSTI]

The one-dimensional propagation of seismic waves with constant Q is shown to be governed by an evolution equation of fractional order in time, which interpolates the heat equation and the wave equation. The fundamental solutions for the Cauchy and Signalling problems are expressed in terms of entire functions (of Wright type) in the similarity variable and their behaviours turn out to be intermediate between those for the limiting cases of a perfectly viscous fluid and a perfectly elastic solid. In view of the small dissipation exhibited by the seismic pulses, the nearly elastic limit is considered. Furthermore, the fundamental solutions for the Cauchy and Signalling problems are shown to be related to stable probability distributions with index of stability determined by the order of the fractional time derivative in the evolution equation.

Francesco Mainardi; Massimo Tomirotti

2010-08-07T23:59:59.000Z

370

Quench Propagation Ignition using Single-Mode Diode Laser  

E-Print Network [OSTI]

The stability of NbTi-based multifilamentary composite wires subjected to local heat disturbances of short durations is studied in pool boiling helium conditions. A new type of heater is being developed to characterize the superconducting to normal state transition. It relies on a single-mode Diode Laser with an optical fiber illuminating the wire surface. This first paper focuses mainly on the feasibility of this new heater technology and eventually discusses the difficulties related to it. A small overview of Diode Lasers and optical fibers revolving around our application is given. Then, we describe the experimental setup, and present some recorded voltage traces of transition and recovery processes. In addition, we present also some energy and Normal Zone Propagation Velocity data and we outline ameliorations that will be done to the system.

Trillaud, F; Devred, Arnaud; Fratini, M; Leboeuf, D; Tixador, P

2005-01-01T23:59:59.000Z

371

Dynamics of intense laser propagation in underdense plasma: Polarization dependence  

SciTech Connect (OSTI)

We present a comprehensive numerical study of the dynamics of an intense laser pulse as it propagates through an underdense plasma in two and three dimensions. By varying the background plasma density and the polarization of the laser beam, significant differences are found in terms of energy transport and dissipation, in agreement with recently reported experimental results. Below the threshold for relativistic self-focusing, the plasma and laser dynamics are observed to be substantially insensitive to the initial laser polarization, since laser transport is dominated by ponderomotive effects. Above this threshold, relativistic effects become important, and laser energy is dissipated either by plasma heating (p-polarization) or by trapping of electromagnetic energy into plasma cavities (s-polarization) or by a combination of both (circular polarization). Besides the fundamental interest of this study, the results presented are relevant to applications such as plasma-based accelerators, x-ray lasers, and fast-ignition inertial confinement fusion.

Singh, D. K.; Fiuza, F.; Silva, L. O. [GoLP, Instituto de Plasmas e Fusao Nuclear - Laboratorio Associado, Instituto Superior Tecnico, 1049-001 Lisboa (Portugal); Davies, J. R. [Fusion Science Center, Laboratory for Laser Energetics and Mechanical Engineering, University of Rochester, New York 14623 (United States); Sarri, G. [School of Mathematics and Physics, The Queens University of Belfast, Belfast BT7 1NN (United Kingdom)

2012-07-15T23:59:59.000Z

372

Procedure for determining the rate of penetration of melts into materials of capillary porosity  

Science Journals Connector (OSTI)

A procedure is proposed for determining the rate of infiltration of melts into porous materials from the change in the electrical resistance of the latter.

M. A. Sherstobitov; S. I. Popel'…

1965-08-01T23:59:59.000Z

373

E-Print Network 3.0 - activity growth rate Sample Search Results  

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

allows continuous tracking of promoter activity as cells change their growth rate from exponential... in the distribution across conditions, and their fractional promoter...

374

E-Print Network 3.0 - affects detection rate Sample Search Results  

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

AND OCEANIC SCIENCE The Effect ENSO Has on Lightning Summary: and relationships between lightning flash rates and convective meteorology and how climate change may affect......

375

Propagation of Neutrinos through Magnetized Gamma-Ray Burst Fireball  

E-Print Network [OSTI]

The neutrino self-energy is calculated in a weakly magnetized plasma consists of electrons, protons, neutrons and their anti-particles and using this we have calculated the neutrino effective potential up to order $M^{-4}_W$. In the absence of magnetic field it reduces to the known result. We have also calculated explicitly the effective potentials for different backgrounds which may be helpful in different environments. By considering the mixing of three active neutrinos in the medium with the magnetic field we have derived the survival and conversion probabilities of neutrinos from one flavor to another and also the resonance condition is derived. As an application of the above, we considered the dense and relativistic plasma of the Gamma-Ray Bursts fireball through which neutrinos of 5-30 MeV can propagate and depending on the fireball parameters they may oscillate resonantly or non-resonantly from one flavor to another. These MeV neutrinos are produced due to stellar collapse or merger events which trigger the Gamma-Ray Burst. The fireball itself also produces MeV neutrinos due to electron positron annihilation, inverse beta decay and nucleonic bremsstrahlung. Using the three neutrino mixing and considering the best fit values of the neutrino parameters, we found that electron neutrinos are hard to oscillate to another flavors. On the other hand, the muon neutrinos and the tau neutrinos oscillate with equal probability to one another, which depends on the neutrino energy, temperature and size of the fireball. Comparison of oscillation probabilities with and without magnetic field shows that, they depend on the neutrino energy and also on the size of the fireball. By using the resonance condition, we have also estimated the resonance length of the propagating neutrinos as well as the baryon content of the fireball.

Sarira Sahu; Nissim Fraija; Yong-Yeon Keum

2009-11-10T23:59:59.000Z

376

Changing Faces, Changing Government | Department of Energy  

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

Changing Faces, Changing Government Changing Faces, Changing Government Changing Faces, Changing Government May 24, 2012 - 3:24pm Addthis Changing Faces, Changing Government What are the key facts? The Energy Department incorporated metrics into funding programs to track minority participation; conducted robust outreach to business associations, utilizing a corporate enterprise system to capture and track small business awards to AAPI-owned businesses; incorporated AAPI businesses into its Small Business Advisory Group; and leveraged its Office of Small and Disadvantaged Business Utilization to target areas of high Asian American populations where there are DOE offices and facilities. Editor's Note: This blog was originally posted by the White House Initiative on Asian Americans and Pacific Islanders, by their Deputy

377

Asymptotic Cellular Growth Rate as the Effective Information Utilization Rate  

E-Print Network [OSTI]

We study the average asymptotic growth rate of cells in randomly fluctuating environments. Using a game-theoretic perspective, we show that any response strategy has an asymptotic growth rate, which is the sum of: (i) the maximal growth rate at the worst possible distribution of environments, (ii) relative information between the actual distribution of environments to the worst one, and (iii) information utilization rate which is the information rate of the sensory devices minus the "information dissipation rate", the amount of information not utilized by the cell for growth. In non-stationary environments, the optimal strategy is the time average of the instantaneous optimal strategy and the optimal switching times are evenly spaced in the statistical (Fisher) metric.

Pugatch, Rami; Tlusty, Tsvi

2013-01-01T23:59:59.000Z

378

The Inverted Block Rate:The Inverted Block Rate: An Alternative to Flat Rate BillingAn Alternative to Flat Rate Billing  

E-Print Network [OSTI]

The Inverted Block Rate:The Inverted Block Rate: An Alternative to Flat Rate BillingAn Alternative;Inverted Block RateInverted Block Rate 22 IntroductionIntroduction ·· Modern societies rely on electrical collectionMetering and Rate Models facilitate collection #12;Inverted Block RateInverted Block Rate 33 Rate

Hughes, Larry

379

October 2003 - March 2004 Power Rates (rates/previous)  

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

3 - March 2004 (CRAC 5 period) "Monthly Adjusted" Wholesale Power Rates Effective October 2003 - March 2004 (CRAC 5 period) (PDF, 4 pages, 15 kb, corrected December 18, 2003,...

380

April - September 2004 Power Rates (rates/previous)  

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

4 (CRAC 6 period) "Monthly Adjusted" Wholesale Power Rates Effective April 1 - September 30, 2004 (CRAC 6 period) (PDF, 4 pages, 14 kb, originally posted January 12, 2004;...

Note: This page contains sample records for the topic "rate change propagation" 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

April - September 2005 Power Rates (rates/previous)  

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

April - September 2005 (CRAC 8 period) "Monthly Adjusted" Wholesale Power Rates Effective April - September 2005 (CRAC 8 period) (PDF, 3 pages, 108 kb, posted December 17, 2004)...

382

October 2005 - March 2006 Power Rates (rates/previous)  

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

October 2005 - March 2006 (CRAC 9 period) "Monthly Adjusted" Wholesale Power Rates Effective October 2005 - March 2006 (CRAC 9 period) (PDF, 4 pages, 116 kb, originally posted...

383

A method for numerical representation of arbitrary boundaries in acoustic wavefront propagation.  

Science Journals Connector (OSTI)

An enhancement to the application of a wavefront propagation algorithm for underwater acoustics based on the level set method is presented. The presence of discontinuities in the phase space at reflecting boundaries requires the use of specialized differencing techniques to prevent oscillations in the computed solutions of the acoustic phase. A weighted essentially non?oscillatory method is applied for this purpose necessitating the use of uniformly spaced grids over the computational domain. In order to represent arbitrary boundaries in this implementation one has to either modify the grid to include the boundary (reduces the convergence rate) or develop an appropriate boundary condition to apply within the region of interest. Earlier versions of this work approximated the actual boundary location by the location of the nearest grid point. This resulted in a stair?step effect in the solutions which resolves with finer grid resolution. However the phase space is high?dimensional; a highly resolved grid can be impractical. In this work a new method is proposed and validated which applies a model based on ray interactions with the boundary to improve results on sparser grids. [Work supported by ONR 333 and by the Science Mathematics & Research for Transformation (SMART) Program.

Sheri Martinelli

2011-01-01T23:59:59.000Z

384

Sound insulation ratings—the STC revisited  

Science Journals Connector (OSTI)

About twenty years ago building authorities and their acoustical experts were faced with a confusing variety of schemes for rating the sound insulation of walls and floors. There was need for a definitive rating system that would digest the 16 transmission loss values that characterize a partition and produce a single number that would describe its sound insulation performance especially in respect to multi?family dwellings. Two standards committees ISO/TC 43 and ASTM E6 (now E33) began more or less together to develop a new improved rating system to fill this need. The product of these labors was what is known in North America as the ASTM sound transmission class (STC). This rating system was so successful that it was almost universally adopted—even in applications for which it was not intended. Despite the apparent success there is now increasing awareness of imperfections in the system. These are examined in light of accumulated data and experience to see whether the system could or should be improved by certain minor changes.

T. D. Northwood

1981-01-01T23:59:59.000Z

385

Climate change action plan  

E-Print Network [OSTI]

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

386

A stochastic simulation of the propagation of Galactic cosmic rays reflecting the discreteness of cosmic ray sources. Age and path length distribution  

E-Print Network [OSTI]

The path length distribution of Galactic cosmic rays (GCRs) is the fundamental ingredient for modeling the propagation process of GCRs based on the so-called weighted slab method. We try to derive this distribution numerically by taking into account the discreteness in both space and time of occurrences of supernova explosions where GCRs are suspected to be born. We solve numerically the stochastic differential equations equivalent to the Parker diffusion-convection equation which describes the propagation process of GCR in the Galaxy. We assume the three-dimensional diffusion is an isotropic one without any free escape boundaries. We ignore any energy change of GCRs and the existence of the Galactic wind for simplicity. We also assume axisymmetric configurations for the density distributions of the interstellar matter and for the surface density of supernovae. We have calculated age and path length of GCR protons arriving at the solar system with this stochastic method. The obtained age is not the escape tim...

Miyake, S; Yanagita, S

2014-01-01T23:59:59.000Z

387

Direct numerical simulation of ignition front propagation in a constant volume with temperature inhomogeneities. I. Fundamental analysis and diagnostics  

SciTech Connect (OSTI)

The influence of thermal stratification on autoignition at constant volume and high pressure is studied by direct numerical simulation (DNS) with detailed hydrogen/air chemistry with a view to providing better understanding and modeling of combustion processes in homogeneous charge compression-ignition engines. Numerical diagnostics are developed to analyze the mode of combustion and the dependence of overall ignition progress on initial mixture conditions. The roles of dissipation of heat and mass are divided conceptually into transport within ignition fronts and passive scalar dissipation, which modifies the statistics of the preignition temperature field. Transport within ignition fronts is analyzed by monitoring the propagation speed of ignition fronts using the displacement speed of a scalar that tracks the location of maximum heat release rate. The prevalence of deflagrative versus spontaneous ignition front propagation is found to depend on the local temperature gradient, and may be identified by the ratio of the instantaneous front speed to the laminar deflagration speed. The significance of passive scalar mixing is examined using a mixing timescale based on enthalpy fluctuations. Finally, the predictions of the multizone modeling strategy are compared with the DNS, and the results are explained using the diagnostics developed. (author)

Chen, Jacqueline H.; Hawkes, Evatt R.; Sankaran, Ramanan [Reacting Flow Research Department, Combustion Research Facility, Sandia National Laboratories, P.O. Box 969 MS 9051, Livermore, CA 94551-0969 (United States); Mason, Scott D. [Lockheed Martin Corporation, Sunnyvale, CA 94089 (United States); Im, Hong G. [Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109-2125 (United States)

2006-04-15T23:59:59.000Z

388

One-way propagation of light in Born-Infeld-like metamaterials  

E-Print Network [OSTI]

We propose and investigate a family of nonlinear metamaterials in which light rays propagate just in one direction -- one-way propagation. Furthermore, we argue how such nonlinear media could provide an analog model for investigating the Born-Infeld Lagrangian in the realm of fields larger than its scale field.

Vitorio A. De Lorenci; Jonas P. Pereira

2014-12-18T23:59:59.000Z

389

Author's personal copy Effect of fluid salinity on subcritical crack propagation in calcite  

E-Print Network [OSTI]

Author's personal copy Effect of fluid salinity on subcritical crack propagation in calcite Fatma Accepted 22 October 2012 Available online 31 October 2012 Keywords: Subcritical crack growth Calcite Salt Damage The slow propagation of cracks, also called subcritical crack growth, is a mechanism of fracturing

390

Average crack front velocity during subcritical fracture propagation in a heterogeneous medium  

E-Print Network [OSTI]

Average crack front velocity during subcritical fracture propagation in a heterogeneous medium relaxation tests, exploring subcritical to critical regimes. Transparency of the material (PMMA) allows kinetic crack propagation is usually referred to as sub-critical crack growth or sub- critical regime

Paris-Sud XI, Université de

391

A Closed-Form Solution to the Arbitrary Order Cauchy Problem with Propagators  

E-Print Network [OSTI]

The general abstract arbitrary order (N) Cauchy problem was solved in a closed form as a sum of exponential propagator functions. The infinite sparse exponential series was solved with the aid of a homogeneous differential equation. It generated a linear combination of exponential functions. The Cauchy problem solution was formed with N linear combinations of N exponential propagators.

Henrik Stenlund

2014-11-24T23:59:59.000Z

392

Detonation Wave Propagation in an Ejector-Augmented Pulse Detonation Rocket  

E-Print Network [OSTI]

Detonation Wave Propagation in an Ejector-Augmented Pulse Detonation Rocket Tae-Hyeong Yi , Donald, TX 76019, USA The propagation of a detonation wave in an ejector-augmented pulse detonation rocket- and two-dimensional detonation tube is first investigated to observe the nature of a detonation wave

Texas at Arlington, University of

393

Numerical Study of Unsteady Detonation Wave Propagation in a Supersonic Combustion Chamber  

E-Print Network [OSTI]

Numerical Study of Unsteady Detonation Wave Propagation in a Supersonic Combustion Chamber T.H. Yi detonation waves in a supersonic flow in one-dimensional tube and two- dimensional wedged chamber parameters. Various features including a vortex are observed. 1 Introduction Detonation wave propagation

Texas at Arlington, University of

394

Excitation and Active Control of Propagating Surface Plasmon Polaritons in Graphene  

E-Print Network [OSTI]

Excitation and Active Control of Propagating Surface Plasmon Polaritons in Graphene Weilu Gao, Gang polaritons propagating through monolayer graphene using a silicon diffractive grating. The normal and actively control plasmonic waves in graphene and is thus an important building block of graphene plasmonic

Kono, Junichiro

395

GCP:GCP: Gossip-based Code Propagation for Large-scale Mobile Wireless Sensor Network  

E-Print Network [OSTI]

, ... Simulation Results Propagation speed: Synthetic Realistic Load balancing: With flooding Without flooding GCP optimal one (Corresponding to the flooding version) Algorithms Comparative + ++ +­­GCP ­++­Boundary fl. + +­ ­++Flooding Propagation speed Load balancing No beacon additionnal information No local additionnal

Paris-Sud XI, Université de

396

Light Propagation in Biological Tissue* Arnold D. Kima and Joseph B. Kellerb  

E-Print Network [OSTI]

. INTRODUCTION Light propagation in a random medium is governed by the radiative transport equation makes computing solutions to the radiative transport equation even more difficult. Kim and Keller proposed replacing the radiative transport equation by the Fokker-Planck equation for light propagation

Kim, Arnold D.

397

Development and propagation of a pollution gradient in the marine boundary layer during INDOEX (1999)  

E-Print Network [OSTI]

Development and propagation of a pollution gradient in the marine boundary layer during INDOEX (1999) Matthew Simpson and Sethu Raman Department of Marine, Earth, and Atmospheric Sciences, North and propagation of a pollution gradient in the marine boundary layer over the Arabian Sea during the Intensive

Raman, Sethu

398

The Color Antisymmetric Ghost Propagator and One-Loop Vertex Renormalization  

Science Journals Connector (OSTI)

......vertices at tree level are considered, and the ghost propa- gators were assumed to be color diagonal. The ghost propagator is...as shown in Fig. 17, the color antisymmetric ghost propa- gator contributes. In contrast to the gluon propagator, the color......

Sadataka Furui

2008-01-01T23:59:59.000Z

399

Number and propagation of line outages in cascading events in electric power transmission systems  

E-Print Network [OSTI]

Number and propagation of line outages in cascading events in electric power transmission systems of transmission lines. We estimate from observed utility data how transmission line outages propagate, and obtain of transmission lines. The multiple mechanisms involved these cascading outages are many and varied, and the power

Dobson, Ian

400

Application of the Transmission Line Matrix method for outdoor sound propagation modelling Part 2  

E-Print Network [OSTI]

Application of the Transmission Line Matrix method for outdoor sound propagation modelling ­ Part 2 propagation model. The time-domain acoustic model is based on the Transmission Line Matrix method. Its.apacoust.2013.07.015 #12;Part 1, the presentation and evaluation of the Transmission Line Matrix method showed

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "rate change propagation" 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

Generation and Propagation of InertiaGravity Waves from Vortex Dipoles and Jets SHUGUANG WANG*  

E-Print Network [OSTI]

Generation and Propagation of Inertia­Gravity Waves from Vortex Dipoles and Jets SHUGUANG WANG) ABSTRACT This study investigates gravity wave generation and propagation from jets within idealized vortex, geostrophic adjust- ment, and spontaneous generation (Fritts and Alexander 2003, and references therein

402

Kelvin--Helmholtz instability of magnetohydrodynamic waves propagating on solar surges  

E-Print Network [OSTI]

In the present paper, we study the evolutionary conditions for Kelvin--Helmholtz (KH) instability in a high-temperature solar surge observed in NOAA AR11271 using the Solar Dynamics Observatory data on 2011 August 25. We study the propagation of normal MHD modes in a flux tube considering the two cases, notably of untwisted magnetic flux tube and the twisted one. The numerical solution to the dispersion relation shows that the kink ($m = 1$) wave traveling in an untwisted flux tube becomes unstable if the jet speed exceeds $1060$ km\\,s$^{-1}$ -- a speed which is inaccessible for solar surges. A weak twist (the ratio of azimuthal to longitudinal magnetic field component) of the internal magnetic field in the range of $0.025$--$0.2$ does not change substantially the critical flow velocity. Thus, one implies that, in general, the kink mode is stable against the KH instability. It turns out, however, that the $m = -2$ and $m = -3$ MHD modes can become unstable when the twist parameter has values between $0.2$ and...

Zhelyazkov, I; Srivastava, A K; Mishonov, T

2014-01-01T23:59:59.000Z

403

Modelling turbulence effects in wildland fire propagation by the randomized level-set method  

E-Print Network [OSTI]

Turbulence is of paramount importance in wildland fire propagation since it randomly transports the hot air mass that can pre-heat and then ignite the area ahead the fire. This contributes to give a random character to the firefront position together with other phenomena as for example fire spotting, vegetation distribution (patchiness), gaseous combustion fluctuation, small-scale terrain elevation changes. Here only turbulence is considered. The level-set method is used to numerically describe the evolution of the fireline contour that is assumed to have a random motion because of turbulence. The progression of the combustion process is then described by a level-set contour distributed according to a weight function given by the probability density function of the air particles in turbulent motion. From the comparison between the ordinary and the randomized level-set methods, it emerges that the proposed modelling approach turns out to be suitable to simulate a moving firefront fed by the ground fuel and dri...

Pagnini, Gianni

2014-01-01T23:59:59.000Z

404

LEED for Homes Rating System affordablemarket rate multi-family  

E-Print Network [OSTI]

LEED for Homes Rating System affordablemarket rate multi-family #12;The top 25% of new homes based% REGULATIONS lawbreakers DEGREE OF GREEN MARKET SHIFT typical building practices market leaders innovators the negative impact of buildings on their occupants and on the environment. LEED for Homes categories

Zaferatos, Nicholas C.

405

The Coal Transportation Rate Database  

Gasoline and Diesel Fuel Update (EIA)

Coal Transportation Rate Database (CTRDB) adds new data for 2000 and 2001. The Federal Energy Regulatory Commission's (FERC) Form 580 "interrogatories" are the primary source for...

406

BPA revises oversupply rate proposal  

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

oversupply-rate-proposal Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives...

407

A Full-wave Model for Wave Propagation and Dissipation in the Inner Magnetosphere Using the Finite Element Method  

SciTech Connect (OSTI)

A wide variety of plasma waves play an important role in the energization and loss of particles in the inner magnetosphere. Our ability to understand and model wave-particle interactions in this region requires improved knowledge of the spatial distribution and properties of these waves as well as improved understanding of how the waves depend on changes in solar wind forcing and/or geomagnetic activity. To this end, we have developed a two-dimensional, finite element code that solves the full wave equations in global magnetospheric geometry. The code describes three-dimensional wave structure including mode conversion when ULF, EMIC, and whistler waves are launched in a two-dimensional axisymmetric background plasma with general magnetic field topology. We illustrate the capabilities of the code by examining the role of plasmaspheric plumes on magnetosonic wave propagation; mode conversion at the ion-ion and Alfven resonances resulting from external, solar wind compressions; and wave structure and mode conversion of electromagnetic ion cyclotron waves launched in the equatorial magnetosphere, which propagate along the magnetic field lines toward the ionosphere. We also discuss advantages of the finite element method for resolving resonant structures, and how the model may be adapted to include nonlocal kinetic effects.

Ernest Valeo, Jay R. Johnson, Eun-Hwa and Cynthia Phillips

2012-03-13T23:59:59.000Z

408

ARM - Climate Change  

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

FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Climate Change A Student's Guide to Global Climate Change The U.S. Environmental...

409

Climate change cripples forests  

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

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

410

Climate change cripples forests  

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

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

411

RECYCLING RATE STUDY Prepared by  

E-Print Network [OSTI]

NATIONAL RECYCLING RATE STUDY Prepared by: Smith, Bucklin and Associates, Inc. Market Research and Statistics Division Chicago, Illinois July 2003 PRINTED ON RECYCLED PAPER #12;BCI RECYCLING RATE STUDY TABLE ....................................................................................................1 II. METHODOLOGY A. Total Pounds of Lead Recycled from Batteries

Laughlin, Robert B.

412

Propagation of Transient Sound Signals into a Viscous Fluid  

Science Journals Connector (OSTI)

An arbitrary excitation of the plane x = 0 sends sound signals into the half?space x ? 0 occupied by the viscous fluid. The governing third?order partial differential equation is solved exactly using the Laplace transform on time and the sine transform on space. New expressions for the most general solution are derived. The specific inputs considered in detail are the Dirac delta function the Heaviside unit function a decaying exponential and a sinusoidal excitation. The final expressions are given in the form of real integrals and of exact power series. Short?time approximations are also given for a general input and for the four aforementioned specific inputs. Previously obtained approximations for the case of small attenuation coefficients are corrected and extended for the decaying exponential and the sinusoidal input. The results found indicate that viscosity tends to reduce the sharpness of the propagating disturbance and thus to smooth out any initially imposed discontinuity. The presence of the disturbance is felt immediately everywhere in the medium and in fact the short?time approximations satisfy the parabolic heat equation.

Frederick R. Norwood

1968-01-01T23:59:59.000Z

413

Emission and Propagation Properties of Midinfrared Quantum Cascade Lasers  

SciTech Connect (OSTI)

We report divergence, astigmatism and M2 measurements of quantum cascade lasers (QCL) with an emission wavelength of 8.77?m. Emission profiles from the QCL facet showed divergence angles of 62° and 32° FWHM ± 2° for the fast and slow axes, respectively. The observation of far field structure superimposed on the fast axes profiles was attributed to the position of the QCL die with respect to the edge of the laser submount, emphasizing the need for careful placement. Two diffraction-limited Germanium aspheric microlenses were designed and fabricated to efficiently collect, collimate, and focus QCL emission. A confocal system comprised of these lenses was used to measure the beam propagation figure of merit (M2) yielding 1.8 and 1.2 for the fast and slow axes, respectively. Astigmatism at the exit facet was calculated to be about 4 ?m, or less than half a wave. To the best of our knowledge, this is the first experimental measurement of astigmatism and M2 reported for mid-IR QCLs.

Krishnaswami, Kannan; Bernacki, Bruce E.; Cannon, Bret D.; Ho, Nicolas; Anheier, Norman C.

2008-02-15T23:59:59.000Z

414

Antiproton Flux in Cosmic Ray Propagation Models with Anisotropic Diffusion  

E-Print Network [OSTI]

Recently a cosmic ray propagation model has been introduced, where anisotropic diffusion is used as a mechanism to allow for $\\mathcal{O}(100)$ km/s galactic winds. This model predicts a reduced antiproton background flux, suggesting an excess is being observed. We implement this model in GALPROP v50.1 and perform a $\\chi^2$ analysis for B/C, $^{10}$Be/$^{9}$Be, and the recent PAMELA $\\bar{p}/p$ datasets. By introducing a power-index parameter $\\alpha$ that dictates the dependence of the diffusion coefficient $D_{xx}$ on height $|z|$ away from the galactic plane, we confirm that isotropic diffusion models with $\\alpha=0$ cannot accommodate high velocity convective winds suggested by ROSAT, while models with $\\alpha=1$ ($D_{xx}\\propto |z|$) can give a very good fit. A fit to B/C and $^{10}$Be/$^{9}$Be data predicts a lower $\\bar{p}/p$ flux ratio than the PAMELA measurement at energies between approximately 2 GeV to 20 GeV. A combined fit including in addition the $\\bar{p}/p$ data is marginal, suggesting only a partial contribution to the measured antiproton flux.

Phillip Grajek; Kaoru Hagiwara

2010-12-02T23:59:59.000Z

415

Exact propagating nonlinear singular disturbances in strongly coupled dusty plasmas  

SciTech Connect (OSTI)

The dynamical response of the strongly coupled dusty plasma medium has recently been described by utilizing the Generalized Hydrodynamic (GHD) model equations. The GHD equations capture the visco-elastic properties of the medium and have been successful in predicting a host of phenomena (e.g., existence of novel transverse shear waves in the fluid medium, modification of longitudinal wave dispersion by elastic effects, etc.) which have found experimental confirmation. In this paper, the nonlinear longitudinal response of the medium governed by GHD equations in strong coupling limit is discussed analytically. The structure of the equations rules out the balance between dispersion and nonlinearity, thereby, forbidding soliton formation. However, a host of new varieties of nonlinear solutions are found to exist, which have singular spatial profiles and yet have conservative properties. For instance, existence of novel conservative shock structures with zero strength is demonstrated, waves whose breaking produces no dissipation in the medium are observed, propagating solutions which produce cusp like singularities can exist and so on. It is suggested that simulations and experiments should look for these novel nonlinear structures in the large amplitude strong coupling limit of longitudinal disturbances in dusty plasmas.

Das, Amita; Tiwari, Sanat Kumar; Kaw, Predhiman; Sen, Abhijit [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

2014-08-15T23:59:59.000Z

416

Commercial Building Asset Rating Program  

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

1 eere.energy.gov 1 eere.energy.gov Commercial Building Asset Rating Program August 23, 2011 12 p.m. ET, 9 a.m. PT Presenter: Cody Taylor PRE-DECISIONAL Information included in this document is for discussion purposes and does not constitute the final program design. FOR INFORMATION ONLY 2 eere.energy.gov Outline * Goals * Scope & schedule * Guiding principles * Program design issues - Metrics - Rating method - Rating scale - Opportunities for efficiency improvement - Quality assurance Please submit clarifying questions during today's webinar via the Q&A function of Live Meeting. 3 eere.energy.gov National Building Rating Program Goals * Facilitate cost-effective investment in energy efficiency and reduce energy use in the commercial building sector * Establish a national standard for voluntary commercial building asset rating

417

Innovative Rates Program. Final report  

SciTech Connect (OSTI)

Title II of the Energy Conservation and Production Act (ECPA) as amended by the Public Utility Regulatory Policies Act (PURPA) provided financial assistance to state utility regulatory commissions, nonregulated electric utilities, and the Tennessee Valley Authority through the Innovative Rates Program. The financial assistance was to be used to plan or carry out electric utility regulatory rate reform initiatives relating to innovative rate structures that encourage conservation of energy, electric utility efficiency and reduced costs, and equitable rates to consumers. The Federal and local objectives of the project are described. Activities planned and accomplishments are summarized for the following: project management, data collection, utility bill evaluation, billing enclosure/mailing evaluation, media program evaluation, display evaluation, rate study sessions evaluation, speakers bureau evaluation, and individual customer contacts. A timetable/milestone chart and financial information are included. (MHR)

Not Available

1982-06-21T23:59:59.000Z

418

October 2004 - March 2005 Power Rates (rates/previous)  

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

4 - March 2005 (CRAC 7 period) "Monthly Adjusted" Wholesale Power Rates Effective October 2004 - March 2005 (CRAC 7 period) (PDF, 3 pages, 13 kb, originally posted at 11 a.m. on...

419

April - September 2002 Power Rates (rates/previous)  

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

2 (CRAC 2 period) "Monthly Adjusted" Wholesale Power Rates Effective April - September 2002 (CRAC 2 period) (PDF, 9 kb, posted April 1, 2002) Note: The PDF document above provides...

420

October 2002 - March 2003 Power Rates (rates/previous)  

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

2 - March 2003 (CRAC 3 period) "Monthly Adjusted" Wholesale Power Rates Effective October 2002 - March 2003 (CRAC 3 period) (PDF, 14 kb, posted October 1, 2002) Note: The PDF...

Note: This page contains sample records for the topic "rate change propagation" 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

April - September 2003 Power Rates (rates/previous)  

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

3 (CRAC 4 period) "Monthly Adjusted" Wholesale Power Rates Effective April - September 2003 (CRAC 4 period) (PDF, 3 pages, 74 kb, updated April 8, 2003) Note: The PDF document...

422

October 2001 - March 2002 Power Rates (rates/previous)  

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

1 - March 2002 (CRAC 1 period) "Monthly Adjusted" Wholesale Power Rates Effective October 2001 - March 2002 (CRAC 1 period) (PDF, 6 kb, updated October 3, 2001, posted October 4,...

423

Application of Self-Propagating High Temperature Synthesis to the Fabrication of Actinide Bearing Nitride and Other Ceramic Nuclear Fuels  

SciTech Connect (OSTI)

The project uses an exothermic combustion synthesis reaction, termed self-propagating high-temperature synthesis (SHS), to produce high quality, reproducible nitride fuels and other ceramic type nuclear fuels (cercers and cermets, etc.) in conjunction with the fabrication of transmutation fuels. The major research objective of the project is determining the fundamental SHS processing parameters by first using manganese as a surrogate for americium to produce dense Zr-Mn-N ceramic compounds. These fundamental principles will then be transferred to the production of dense Zr-Am-N ceramic materials. A further research objective in the research program is generating fundamental SHS processing data to the synthesis of (i) Pu-Am-Zr-N and (ii) U-Pu-Am-N ceramic fuels. In this case, Ce will be used as the surrogate for Pu, Mn as the surrogate for Am, and depleted uranium as the surrogate for U. Once sufficient fundamental data has been determined for these surrogate systems, the information will be transferred to Idaho National Laboratory (INL) for synthesis of Zr-Am-N, Pu-Am-Zr-N and U-Pu-Am-N ceramic fuels. The high vapor pressures of americium (Am) and americium nitride (AmN) are cause for concern in producing nitride ceramic nuclear fuel that contains Am. Along with the problem of Am retention during the sintering phases of current processing methods, are additional concerns of producing a consistent product of desirable homogeneity, density and porosity. Similar difficulties have been experienced during the laboratory scale process development stage of producing metal alloys containing Am wherein compact powder sintering methods had to be abandoned. Therefore, there is an urgent need to develop a low-temperature or low–heat fuel fabrication process for the synthesis of Am-containing ceramic fuels. Self-propagating high temperature synthesis (SHS), also called combustion synthesis, offers such an alternative process for the synthesis of Am nitride fuels. Although SHS takes thermodynamic advantage of the high combustion temperatures of these exothermic SHS reactions to synthesize the required compounds, the very fast heating, reaction and cooling rates can kinetically generate extremely fast reaction rates and facilitate the retention of volatile species within the rapidly propagating SHS reaction front. The initial objective of the research program is to use Mn as the surrogate for Am to synthesize a reproducible, dense, high quality Zr-Mn-N ceramic compound. Having determined the fundamental SHS reaction parameters and optimized SHS processing steps using Mn as the surrogate for Am, the technology will be transferred to Idaho National Laboratory to successfully synthesize a high quality Zr-Am-N ceramic fuel.

John J. Moore, Marissa M. Reigel, Collin D. Donohoue

2009-04-30T23:59:59.000Z

424

Environmental Change Institute Environmental Change Institute  

E-Print Network [OSTI]

the functioning of forest ecosystems 16 Governing the world's tropical forests 18 Modelling new patterns of change Analysing water risks in a changing climate 34 A history of achievements Main cover photo: Wych Elm affecting it. We operate at global, national and local levels, working in partnership with people who can

Oxford, University of

425

Positron annihilation rates in materials  

Science Journals Connector (OSTI)

The study of positron annihilation rate is one subject of a relatively new method of material structure analysis â?? positron annihilation spectroscopy. Polyethylene Terephthalate (PET) films have been studied by positron annihilation rate measurement. The correlation between annihilation rates and the PET film thickness was established. Similar studies were carried out for aluminium foils and water. The results give information on the probability of positron annihilation per unit of time and per unit of material thickness that is described by an explicit function of the energy transfer model.

Tran Dai Nghiep; Khuong Thanh Tuan; Ngo Danh Du

2007-01-01T23:59:59.000Z

426

Category:Utility Rates | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Category Edit History Facebook icon Twitter icon » Category:Utility Rates Jump to: navigation, search Add a new Utility Rate Pages in category "Utility Rates" The following 200 pages are in this category, out of 42,539 total. (previous 200) (next 200) 0 Data:0000827d-84d0-453d-b659-b86869323897 Data:000086db-7a5e-4356-9c57-c912f7d1622e Data:0003a8b3-04b9-4ecb-b06d-6022e7f0f009 Data:000470c7-df04-47aa-bdd2-d70f0a2c52b3 Data:000b6dfa-a541-428a-9029-423006e22a34 Data:000db36e-b548-43e7-a283-d37ecc77cef1 Data:000e60f7-120d-48ab-a1f9-9c195329c628 Data:00101108-073b-4503-9cd4-01769611c26f Data:001361ca-50d2-49bc-b331-08755a2c7c7d

427

Commitment Institutional Change Principle | Department of Energy  

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

Commitment Institutional Change Principle Commitment Institutional Change Principle Commitment Institutional Change Principle October 8, 2013 - 11:05am Addthis Commitment can be a crucial element that helps Federal agencies inject and emphasize sustainability in their organizational culture. Institutions and people change when they have made definite commitments to change, especially when those commitments relate to future conditions. Research shows that explicit commitments improve the rate at which people adopt energy-efficient behaviors. Methods Explicit commitments help individuals make behavioral changes by externalizing their internal desires and goals to ensure follow-through. Conveying goals to others also increases the probability of achieving them and prevents procrastination. Precommitting to a request can lead to

428

Investigation of guided waves propagation in pipe buried in sand  

SciTech Connect (OSTI)

The inspection of pipelines by guided wave testing is a well-established method for the detection of corrosion defects in pipelines, and is currently used routinely in a variety of industries, e.g. petrochemical and energy. When the method is applied to pipes buried in soil, test ranges tend to be significantly compromised because of attenuation of the waves caused by energy radiating into the soil. Moreover, the variability of soil conditions dictates different attenuation characteristics, which in-turn results in different, unpredictable, test ranges. We investigate experimentally the propagation and attenuation characteristics of guided waves in pipes buried in fine sand using a well characterized full scale experimental apparatus. The apparatus consists of an 8 inch-diameter, 5.6-meters long steel pipe embedded over 3 meters of its length in a rectangular container filled with fine sand, and an air-bladder for the application of overburden pressure. Longitudinal and torsional guided waves are excited in the pipe and recorded using a transducer ring (Guided Ultrasonics Ltd). Acoustic properties of the sand are measured independently in-situ and used to make model predictions of wave behavior in the buried pipe. We present the methodology and the systematic measurements of the guided waves under a range of conditions, including loose and compacted sand. It is found that the application of overburden pressure modifies the compaction of the sand and increases the attenuation, and that the measurement of the acoustic properties of sand allows model prediction of the attenuation of guided waves in buried pipes with a high level of confidence.

Leinov, Eli; Cawley, Peter; Lowe, Michael J.S. [NDE Group, Department of Mechanical Engineering, Imperial College London, London SW7 2AZ (United Kingdom)

2014-02-18T23:59:59.000Z

429

Nonperturbative gluon and ghost propagators for d=3 Yang-Mills theory  

Science Journals Connector (OSTI)

We study a manifestly gauge-invariant set of Schwinger-Dyson equations to determine the nonperturbative dynamics of the gluon and ghost propagators in d=3 Yang-Mills theory. The use of the well-known Schwinger mechanism, in the Landau gauge leads to the dynamical generation of a mass for the gauge boson (gluon in d=3), which, in turn, gives rise to an infrared finite gluon propagator and ghost dressing function. The propagators obtained from the numerical solution of these nonperturbative equations are in very good agreement with the results of SU(2) lattice simulations.

A. C. Aguilar; D. Binosi; J. Papavassiliou

2010-06-25T23:59:59.000Z

430

Symmetric and anti-symmetric buckle propagation modes in subsea corroded pipelines  

Science Journals Connector (OSTI)

Solutions for the steady-state buckle propagation modes and pressures in a corroded pipeline subjected to external hydrostatic pressure are presented. The buckle propagation pressure of a corroded pipeline is obtained analytically with a rigid-plastic analysis and numerically from finite element analysis (ABAQUS). Both the rigid-plastic analysis and ABAQUS program reveal symmetric and anti-symmetric buckling modes, depending on the depth and angular extent of the corrosion. Snap-through and global buckling of the pipeline are also distinguished in both solutions. The rigid-plastic solutions for buckle propagation pressure and corresponding collapse modes are found to be within 15% with numerical solutions.

Jianghong Xue; Michelle S. Hoo Fatt

2005-01-01T23:59:59.000Z

431

Assisted migration of plants: Changes in latitudes, changes in attitudes  

Science Journals Connector (OSTI)

Rapid climate change has the potential to alter the location of bioclimatic envelopes for a significant portion of the world’s flora. Plant species will respond variously via phenotypic plasticity, evolutionary adaptation, migration, or extinction. When fragmentation limits migration potential of many species or when natural migration rates are outstripped by the pace of climate change, some propose purposeful, human-mediated migration (assisted migration) as a solution. Here, we join the debate on assisted migration, and while recognizing the potential negative impacts, present a strategy to collect and bank seeds of plant species at risk of extinction in the face of rapid climate change to ensure that emerging habitats are as species-diverse as possible. We outline the framework currently being used by the Dixon National Tallgrass Prairie Seed Bank to prioritize species for seed banking, both for restoration purposes and for potential assisted migration in the future. We propose a strategy for collecting across the entirety of a species range, while targeting populations likely to go extinct under climate change, determined by application of species distribution models. Finally, we discuss current international efforts to collect and bank the global flora, as well as the research needs necessary to fully undertake the strategy presented.

Pati Vitt; Kayri Havens; Andrea T. Kramer; David Sollenberger; Emily Yates

2010-01-01T23:59:59.000Z

432

The Limits of Flame Propagation at Atmospheric Pressure. II. The Influence of Changes in the Physical Properties  

Science Journals Connector (OSTI)

...redetermined. The heat of combustion multiplied by the percentage of hydrocarbons in the lower limit...constant, but more heat is required to maintain the combustion of the higher hydrocarbons. Other evidence is...

1948-01-01T23:59:59.000Z

433

Quantized Media with Absorptive Scatterers and Modified Atomic Emission Rates  

E-Print Network [OSTI]

Modifications in the spontaneous emission rate of an excited atom that are caused by extinction effects in a nearby dielectric medium are analyzed in a quantummechanical model, in which the medium consists of spherical scatterers with absorptive properties. Use of the dyadic Green function of the electromagnetic field near a a dielectric sphere leads to an expression for the change in the emission rate as a series of multipole contributions for which analytical formulas are obtained. The results for the modified emission rate as a function of the distance between the excited atom and the dielectric medium show the influence of both absorption and scattering processes.

L. G. Suttorp; A. J. van Wonderen

2011-02-14T23:59:59.000Z

434

DOE Guidance-Category Rating  

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

2010 2010 MEMORANDUM FOR HUMAN RESOURCES DIRECTORS FROM: SARA"iJ. Boku1, DIRECToR OF HUMAN C~TAL MANAGEMENT SUBJECT: GUIDANCE MEMORANDUM #10 CATEGORY RATING The purpose of this memorandum is to establish the Department of Energy's (DOE's) policy for the use of Category Rating. Authorities: Public Law 107-296; Title 5 USC 3319; 5 CFR, Part 337, Subpart C., Presidential Memorandum of May 11, 2010 This guidance is established in accordance with 5 USC 3319, which authorizes Federal Agencies to use alternative rating proced.ures in assessing applicants for employment using category rating and selection procedures, and to ensure consistency in complying with federal regulations contained in the Code of Federal Regulations (CFR), Office of Personnel Management (OPM) and the Department of

435

ARM - Measurement - Radiative heating rate  

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

govMeasurementsRadiative heating rate govMeasurementsRadiative heating rate ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Radiative heating rate The heating rate due to the divergence of long and shortwave radiative flux. Categories Radiometric, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. External Instruments MOLTS : Model Output Location Time Series Datastreams MOLTS : Model Output Location Time Series Datastreams MOLTSEDASSNDCLASS1 : Model Output Loc. Time Ser. (MOLTS): EDAS

436

OpenEI - electric rates  

Open Energy Info (EERE)

U.S. Electric Utility U.S. Electric Utility Companies and Rates: Look-up by Zipcode (Feb 2011) http://en.openei.org/datasets/node/899 This dataset, compiled by NREL and Ventyx, provides average residential, commercial and industrial electricity rates by zip code for both investor owned utilities (IOU) and non-investor owned utilities. Note: the file includes average rates for each utility, but not the detailed rate structure data found in the database available via the zip-code look-up feature on the OpenEI Utilities page (http://en.openei.org/wiki/Gateway:Utilities). The data was released by NREL/Ventyx in February 2011.

437

High repetition rate fiber lasers  

E-Print Network [OSTI]

This thesis reports work in high repetition rate femtosecond fiber lasers. Driven by the applications including optical arbitrary waveform generation, high speed optical sampling, frequency metrology, and timing and frequency ...

Chen, Jian, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

438

Project Definition Rating Index (PDRI)  

Broader source: Energy.gov [DOE]

The Office of Environmental Management (EM) Project Definition Rating Index (EM-PDRI) is a modification of a commercially developed planning tool that has been tested by an EM team specifically for...

439

Electric Rate Alternatives to Cogeneration  

E-Print Network [OSTI]

"ELECTRIC RATE ALTERNATIVES TO COGENERATION" K. R. SANDBERG, JR. INDUSTRIAL ACCOUNTS MANAGER - TEXAS GULF STATES UTILITIES COMPANY BEAUMONT, TEXAS ABSTRACT This paper discusses electric rate slternatives to cogeneration for the industrisl... PERSPECTIVE Gulf States Utilities was incorporated in 1925 and is primarily in the business of generating. transmitting and distributing electricity to 555.000 customers in southeast Texas and south Louisiana. The service area extends 350 miles westward...

Sandberg, K. R. Jr.

440

Utility Rate API v2 | OpenEI Community  

Open Energy Info (EERE)

Rate API v2 Rate API v2 Home > Groups > Utility Rate Rmckeel's picture Submitted by Rmckeel(297) Contributor 11 September, 2012 - 07:35 There are updates coming through the pipe for the utility rate form. When these updates are deployed to production, then will allow ISU and anyone entering utility rates the ability to define and access richer data. This will cause some changes at the API level. Jordan from ISU is currently working on this. In an email, he noted: "I am working on the API and making sure that it will keep version 1 and make a version 2 to represent the new data. I am also working on a way to automatically convert the version 1 data into a format that version 2 can use and a way to make the data entered in the new version available in version 1 of the API. As

Note: This page contains sample records for the topic "rate change propagation" 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

Update to ENERGY STAR Ratings for Hotels, FAQs  

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

Update to ENERGY STAR Ratings for Hotels Update to ENERGY STAR Ratings for Hotels May 2009 Frequently Asked Questions EPA's energy performance rating system evaluates actual, as-billed energy data to create a whole building indicator of energy performance and compare a building to its national peer group. EPA analyzes national survey data, develops regression models to predict energy use based on operation, and assigns a 1-to-100 rating to a building. Each point on the performance scale represents one percentile of buildings. A full overview of this process and specific details on the hotel model are available online. 1 A revised rating model for hotels was released into Portfolio Manager on February 23, 2009. How was the Hotel Model Updated? The new hotel model incorporates several updates to the original model, as described below. All of the changes have

442

Uncertainty propagation on damage evolution of a concrete structure subjected  

E-Print Network [OSTI]

the structure is subjected to. To investigate the influence of the material properties variability on the long-term for concrete materials 1. Introduction Deep nuclear waste disposal facilities need to be studied over periods rock in a deep underground storage. Calcium leaching leads to important changes in the concrete

Paris-Sud XI, Université de

443

Propagation of terahertz electromagnetic wave in plasma with inhomogeneous collision frequency  

SciTech Connect (OSTI)

In this paper, we investigate the absorption spectra of terahertz electromagnetic wave in plasma with inhomogeneous collision frequency. Profiles are introduced to describe the non-uniformity of collision frequency. It is interesting to find that when the plasma is collision frequency inhomogeneous, the absorption spectrum would decreases faster than that in uniform plasma. And the rate of decreasing would be different when the profile changes. Two parameters are set up to predict how the profiles affect the absorption spectra. Furthermore, the effects of electron density are also considered.

Tian, Yuan; Han, YiPing; Ling, YingJie [School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071 (China)] [School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071 (China); Ai, Xia [National Laboratory of Science and Technology on Antennas and Microwaves Xidian University, Xi'an 710071 (China)] [National Laboratory of Science and Technology on Antennas and Microwaves Xidian University, Xi'an 710071 (China)

2014-02-15T23:59:59.000Z

444

Resuspension rates from aged inert-tracer sources  

SciTech Connect (OSTI)

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

Sehmel, G.A.

1982-11-01T23:59:59.000Z

445

Elastic wave propagation in anisotropic crustal material possessing arbitrary internal tilt  

Science Journals Connector (OSTI)

......Elastic wave propagation in anisotropic crustal material possessing...symmetry is valid. Additional anisotropic materials such as shales, bedded strata or regularly...tetragonal or orthorhombic anisotropic behaviour rare (e.g. Christensen......

David A. Okaya; Thomas V. McEvilly

2003-05-01T23:59:59.000Z

446

A Multi-Model Approach for Uncertainty Propagation and Model Calibration in CFD Applications  

E-Print Network [OSTI]

Proper quantification and propagation of uncertainties in computational simulations are of critical importance. This issue is especially challenging for CFD applications. A particular obstacle for uncertainty quantifications in CFD problems is the large model discrepancies associated with the CFD models used for uncertainty propagation. Neglecting or improperly representing the model discrepancies leads to inaccurate and distorted uncertainty distribution for the Quantities of Interest. High-fidelity models, being accurate yet expensive, can accommodate only a small ensemble of simulations and thus lead to large interpolation errors and/or sampling errors; low-fidelity models can propagate a large ensemble, but can introduce large modeling errors. In this work, we propose a multi-model strategy to account for the influences of model discrepancies in uncertainty propagation and to reduce their impact on the predictions. Specifically, we take advantage of CFD models of multiple fidelities to estimate the model ...

Wang, Jian-xun; Xiao, Heng

2015-01-01T23:59:59.000Z

447

Corrosion initiation and propagation on corrosion resistant alloys embedded in concrete by accelerated chloride transport.  

E-Print Network [OSTI]

??Two duplex stainless steels rebars: UNS32304SS and UNS32101SS, were selected to investigate the corrosion initiation and propagation in reinforced concrete specimens. The investigation is divided… (more)

Gutierrez Tellez, Francisco.

2013-01-01T23:59:59.000Z

448

Spiral Rainbands in a Numerical Simulation of Hurricane Bill (2009). Part II: Propagation of Inner Rainbands  

Science Journals Connector (OSTI)

This is the second part of a study that examines spiral rainbands in a numerical simulation of Hurricane Bill (2009). This paper evaluates whether the propagation of inner rainbands in the Hurricane Bill simulation is consistent with previously ...

Yumin Moon; David S. Nolan

449

Manipulating a non-classical state of light propagating through a multiply scattering medium  

Science Journals Connector (OSTI)

We use wavefront shaping methods to control non-classical states of light propagating through a multiply scattering medium. We experimentally show guiding of a single-photon into a...

Defienne, Hugo; Barbieri, Marco; Chalopin, Benoît; Chatel, Béatrice; Walmsley, Ian A; Smith, Brian; Gigan, Sylvain

450

A One-Dimensional Propagation of Shock Wave Supported by Atmospheric Millimeter-Wave Plasma  

Science Journals Connector (OSTI)

A shock wave supported by an atmospheric breakdown plasma caused by a high-power millimeter-wave ... was detached from the ionization front of the plasma whenever the propagation velocity of the ionization ... . ...

Yasuhisa Oda; Toshikazu Yamaguchi…

2011-06-01T23:59:59.000Z

451

Phase coherence in multiple scattering : weak and intense monochromatic light wave propagating in a cold strontium  

E-Print Network [OSTI]

in a cold strontium cloud David Wilkowski, Yannick Bidel, Thierry Chaneli`ere, Robin Kaiser, Bruce Klappauf coherence of a monochromatic laser light propagating in an optically thick sample of laser-cooled strontium

452

Investigation on Wave Propagation Characteristics in Plates and Pipes for Identification of Structural Defect Locations  

E-Print Network [OSTI]

For successful identification of structural defects in plates and pipes, it is essential to understand structural wave propagation characteristics such as dispersion relations. Analytical approaches to identify the dispersion relations...

Han, Je Heon

2013-07-31T23:59:59.000Z

453

Logical Effort of Carry Propagate Adders David Harris and Ivan Sutherland  

E-Print Network [OSTI]

Logical Effort of Carry Propagate Adders David Harris and Ivan Sutherland Harvey Mudd College / Sun Microsystems Laboratories 301 E. Twelfth St. Claremont, CA 91711 David_Harris@hmc.edu / Ivan

Harris, David Money

454

Magnetic field generation from Alfven waves propagating along helical lines of force  

Science Journals Connector (OSTI)

A static induced magnetization of Alfven waves (IMAW) due to the inverse Faraday effect is defined and studied. The Alfven waves are assumed to propagate along helical lines of force of a force-free ambient magnetic

B. Bera; Chandra Das; B. Chakraborty…

1992-07-01T23:59:59.000Z

455

Propagation of MHD waves in a plasma in a sheared magnetic field with straight field lines  

Science Journals Connector (OSTI)

The propagation of MHD plasma waves in a sheared magnetic field is investigated. The problem is solved using ... is inhomogeneous in one direction, and the magnetic field lines are straight. The waves are assumed...

P. N. Mager; D. Yu. Klimushkin

2002-04-01T23:59:59.000Z

456

Determination and Characterization of Ice Propagation Mechanisms on Surfaces Undergoing Dropwise Condensation  

E-Print Network [OSTI]

The mechanisms responsible for ice propagation on surfaces undergoing dropwise condensation have been determined and characterized. Based on experimental data acquired non-invasively with high speed quantitative microscopy, the freezing process...

Dooley, Jeffrey B.

2011-08-08T23:59:59.000Z

457

Numerical Modeling of the Propagation Environment in the Atmospheric Boundary Layer over the Persian Gulf  

Science Journals Connector (OSTI)

Strong vertical gradients at the top of the atmospheric boundary layer affect the propagation of electromagnetic waves and can produce radar ducts. A three-dimensional, time-dependent, nonhydrostatic numerical model was used to simulate the ...

B. W. Atkinson; J-G. Li; R. S. Plant

2001-03-01T23:59:59.000Z

458

Guided Wave Propagation in Tubular Section with Multi-Layered Viscoelastic Coating  

E-Print Network [OSTI]

. The dispersion of phase velocity and wave attenuation for coated pipes are evaluated against a baseline model which is the bare, uncoated tubing to establish the propagation characteristics of the guided shear and longitudinal waves in the presence of multiple...

Kuo, Chi-Wei 1982-

2012-11-16T23:59:59.000Z

459

Propagation of the low-frequency noise generated by power station water-cooling towers  

Science Journals Connector (OSTI)

The propagation of low-frequency noise generated by air turbulent motion in water-cooling towers is investigated by the use of geometrical acoustics of moving media. It is shown that a cooling tower plum acts ...

Sergei P. Fisenko

1997-01-01T23:59:59.000Z

460

Theory of acoustic attenuation, dispersion, and pulse propagation in unconsolidated granular materials including  

E-Print Network [OSTI]

Theory of acoustic attenuation, dispersion, and pulse propagation in unconsolidated granular of particles in contact with a new, rough-surface, random-packing model of mineral grains in unconsolidated

Buckingham, Michael

Note: This page contains sample records for the topic "rate change propagation" 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

Condensation ---conditional density propagation for visual Michael Isard and Andrew Blake,  

E-Print Network [OSTI]

Condensation --- conditional density propagation for visual tracking Michael Isard and Andrew Blake simultaneous alternative hypotheses. The Condensation algorithm uses ``factored sampling'', previously applied by a randomly generated set. Condensation uses learned dynamical models, together with visual observations

462

Detonative Propagation and Accelerative Expansion of the Crab Nebula Shock Front  

Science Journals Connector (OSTI)

The accelerative expansion of the Crab Nebula’s outer envelope is a mystery in dynamics, as a conventional expanding blast wave decelerates when bumping into the surrounding interstellar medium. Here we show that the strong relativistic pulsar wind bumping into its surrounding nebula induces energy-generating processes and initiates a detonation wave that propagates outward to form the current outer edge, namely, the shock front, of the nebula. The resulting detonation wave, with a reactive downstream, then provides the needed power to maintain propagation of the shock front. Furthermore, relaxation of the curvature-induced reduction of the propagation velocity from the initial state of formation to the asymptotic, planar state of Chapman-Jouguet propagation explains the observed accelerative expansion. Potential richness in incorporating reactive fronts in the description of various astronomical phenomena is expected.

Yang Gao and Chung K. Law

2011-10-18T23:59:59.000Z

463

Moisture Asymmetry and MJO Eastward Propagation in an Aquaplanet General Circulation Model  

Science Journals Connector (OSTI)

The role of zonal moisture asymmetry in the eastward propagation of the Madden–Julian oscillation (MJO) is investigated through a set of aquaplanet atmospheric general circulation model (AGCM) experiments with a zonally symmetric sea surface ...

Pang-Chi Hsu; Tim Li; Hiroyuki Murakami

2014-12-01T23:59:59.000Z

464

End-to-End Network Simulation Using a Site-Specific Radio Wave Propagation Model  

SciTech Connect (OSTI)

The performance of systems that rely on a wireless network depends on the propagation environment in which that network operates. To predict how these systems and their supporting networks will perform, simulations must take into consideration the propagation environment and how this effects the performance of the wireless network. Network simulators typically use empirical models of the propagation environment. However, these models are not intended for, and cannot be used, to predict a wireless system will perform in a specific location, e.g., in the center of a particular city or the interior of a specific manufacturing facility. In this paper, we demonstrate how a site-specific propagation model and the NS3 simulator can be used to predict the end-to-end performance of a wireless network.

Djouadi, Seddik M [ORNL] [ORNL; Kuruganti, Phani Teja [ORNL] [ORNL; Nutaro, James J [ORNL] [ORNL

2013-01-01T23:59:59.000Z

465

Towards the continuum limit of the lattice Landau gauge gluon propagator  

SciTech Connect (OSTI)

The infrared behaviour of the lattice Landau gauge gluon propagator is discussed, combining results from simulations with different volumes and lattice spacings. In particular, the Cucchieri-Mendes bounds are computed and their implications for D(0) discussed.

Oliveira, O. [Centro de Fisica Computacional, Rua Larga, Universidade de Coimbra, P-3004-516 Coimbra (Portugal); Departamento de Fisica, Instituto Tecnologico de Aeronautica, 12.228-900, Sao Jose dos Campos, SP (Brazil); Silva, P. J. [Centro de Fisica Computacional, Rua Larga, Universidade de Coimbra, P-3004-516 Coimbra (Portugal)

2011-05-23T23:59:59.000Z

466

Fact #613: March 8, 2010 Vehicle Occupancy Rates  

Broader source: Energy.gov [DOE]

The average number of persons occupying a car is 1.59 and has not changed much since 1995. The largest increases from 1995 to 2009 have been in the occupancy rates for vans – from 2.07 to 2.35 –...

467

Curvature-induced radiation of surface plasmon polaritons propagating around bends  

SciTech Connect (OSTI)

We present a theoretical study of the curvature-induced radiation of surface plasmon polaritons propagating around bends at metal-dielectric interfaces. We explain qualitatively how the curvature leads to distortion of the phase front, causing the fields to radiate energy away from the metal-dielectric interface. We then quantify, both analytically and numerically, radiation losses and energy transmission efficiencies of surface plasmon polaritons propagating around bends with varying radii as well as sign of curvature.

Hasegawa, Keisuke; Noeckel, Jens U.; Deutsch, Miriam [Department of Physics, University of Oregon, 1371 East 13th Aveenue, Eugene, Oregon 97403 (United States)

2007-06-15T23:59:59.000Z

468

The effect of freestream variations on the propagation of detonation and combustion waves  

E-Print Network [OSTI]

THE EFFECT OF FREESTREAM VARIATIONS ON THE PROPAGATION OF DETONATION AND COMBUSTION WAVES A Thesis by MARLON LEE CLARK Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 1988 Major Subject: Aerospace Engineering THE EFFECT OF FREESTREAM VARIATIONS ON THE PROPAGATION OF DETONATION AND COMBUSTION WAVES A Thesis by MARLON LEE CLARK Approved as to style and content by: eland A. Garison...

Clark, Marlon Lee

2012-06-07T23:59:59.000Z

469

Non-Adiabatic Effects on Combustion Front Propagation in Porous Media: Multiplicity of Steady States  

SciTech Connect (OSTI)

The sustained propagation of combustion fronts in porous media is a necessary condition for the success of an in situ combustion project for oil recovery. Compared to other recovery methods, in situ combustion involves the added complexity of exothermic reactions and temperature-dependent chemical kinetics. In the presence of heat losses, the possibility of ignition and extinction (quenching) exists. In this report, we address the properties of combustion fronts propagating at a constant velocity in the presence of heat losses.

Akkutlu, I. Yucel; Yortsos, Yanis C.

2002-03-11T23:59:59.000Z

470

Ultrasonic wave propagation through a layer of spherical inclusions with random of periodic arrangements  

E-Print Network [OSTI]

ULTRASONIC %'AVE PROPAGATION THROUGH A LAYER OF SPHERICAL INCLUSIONS %ITH RANDOM OR PERIODIC ARRANGEMENTS A Thesis by NATHAN ALLAN DAY Submitted to the Office of Graduate Studies of Texas AEcM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1994 Major Subject: Aerospace Engineering ULTRASONIC WAVE PROPAGATION THROUGH A LAYER OF SPHERICAL INCLUSIONS WITH RANDOM OR PERIODIC ARRANGEMENTS A Thesis by NATHAN ALLAN DAY Submitted...

Day, Nathan Allan

2012-06-07T23:59:59.000Z

471

Effect of a surface boundary layer on an intensifying, downward-propagating vortex  

E-Print Network [OSTI]

EFFECT OF A SURFACE BOUNDARY LAYER ON AN INTENSIFYING, DOWNWARD-PROPAGATING VORTEX A Thesis by VINCENT TUNSTALL WOOD Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1977 Major Subject: Meteorology EFFECT OF A SURFACE BOUNDARY LAYER ON AN INTENSIFYING, DOWNWARD-PROPAGATING VORTEX A Thesis by VINCENT TUNSTALL WOOD Approved as to style and content by: (Chairman of Committee) (Head of Department...

Wood, Vincent Tunstall

2012-06-07T23:59:59.000Z

472

Propagation of coleus under intermittent mist containing high levels of soluble salts  

E-Print Network [OSTI]

PROPAGATION OF COLEUS UNDER INTERMITTENT MIST CONTAINING HIGH LEVELS OF SOLUBLE SALTS A Thesis SAMUEL DEAN ALLEN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE May 1986 Major Subject: Horticulture PROPAGATION OF COLEUS UNDER INTERMITTENT MIST CONTAINING HIGH LEVELS OF SOLUBLE SALTS A Thesis SAMUEL DEAN ALLEN Approved as to style and content by: Edward L. McWilliams (Chairman of Committee...

Allen, Samuel Dean

2012-06-07T23:59:59.000Z

473

Federal Energy Management Program: Continuous Change Institutional Change  

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

Continuous Change Continuous Change Institutional Change Principle to someone by E-mail Share Federal Energy Management Program: Continuous Change Institutional Change Principle on Facebook Tweet about Federal Energy Management Program: Continuous Change Institutional Change Principle on Twitter Bookmark Federal Energy Management Program: Continuous Change Institutional Change Principle on Google Bookmark Federal Energy Management Program: Continuous Change Institutional Change Principle on Delicious Rank Federal Energy Management Program: Continuous Change Institutional Change Principle on Digg Find More places to share Federal Energy Management Program: Continuous Change Institutional Change Principle on AddThis.com... Sustainable Buildings & Campuses Operations & Maintenance

474

GLOBAL AND LOCAL CUTOFF FREQUENCIES FOR TRANSVERSE WAVES PROPAGATING ALONG SOLAR MAGNETIC FLUX TUBES  

SciTech Connect (OSTI)

It is a well-established result that the propagation of linear transverse waves along a thin but isothermal magnetic flux tube is affected by the existence of the global cutoff frequency, which separates the propagating and non-propagating waves. In this paper, the wave propagation along a thin and non-isothermal flux tube is considered and a local cutoff frequency is derived. The effects of different temperature profiles on this local cutoff frequency are studied by considering different power-law temperature distributions, as well as the semi-empirical VAL C model of the solar atmosphere. The obtained results show that the conditions for wave propagation strongly depend on the temperature gradients. Moreover, the local cutoff frequency calculated for the VAL C model gives constraints on the range of wave frequencies that are propagating in different parts of the solar atmosphere. These theoretically predicted constraints are compared to observational data and are used to discuss the role played by transverse tube waves in the atmospheric heating and dynamics, and in the excitation of solar atmospheric oscillations.

Routh, S. [Department of Physics, R. V. College of Engineering, Bangalore (India)] [Department of Physics, R. V. College of Engineering, Bangalore (India); Musielak, Z. E. [Department of Physics, University of Texas at Arlington, Arlington, TX 76019 (United States)] [Department of Physics, University of Texas at Arlington, Arlington, TX 76019 (United States); Hammer, R., E-mail: routhswati@rvce.edu.in, E-mail: zmusielak@uta.edu, E-mail: hammer@kis.uni-freiburg.de [Kiepenheuer-Institut fuer Sonnenphysik, Schoeneckstr. 6, Freiburg, D-79104 Germany (Germany)

2013-01-20T23:59:59.000Z

475

Acoustic Emission Detection and Prediction of Fatigue Crack Propagation in Composite Patch Repairs Using Neural Networks  

SciTech Connect (OSTI)

An aircraft is subjected to severe structural and aerodynamic loads during its service life. These loads can cause damage or weakening of the structure especially for aging military and civilian aircraft, thereby affecting its load carrying capabilities. Hence composite patch repairs are increasingly used to repair damaged aircraft metallic structures to restore its structural efficiency. This paper presents the results of Acoustic Emission (AE) monitoring of crack propagation in 2024-T3 Clad aluminum panels repaired with adhesively bonded octagonal, single sided boron/epoxy composite patch under tension-tension fatigue loading. Crack propagation gages were used to monitor crack initiation. The identified AE sensor features were used to train neural networks for predicting crack length. The results show that AE events are correlated with crack propagation. AE system was able to detect crack propagation even at high noise condition of 10 Hz loading; that crack propagation signals can be differentiated from matrix cracking signals that take place due to fiber breakage in the composite patch. Three back-propagation cascade feed forward networks were trained to predict crack length based on the number of fatigue cycles, AE event number, and both the Fatigue Cycles and AE events, as inputs respectively. Network using both fatigue cycles and AE event number as inputs to predict crack length gave the best results, followed by Network with fatigue cycles as input, while network with just AE events as input had a greater error.

Okafor, A. Chukwujekwu; Singh, Navdeep; Singh, Navrag [Structural Health Monitoring and NDE Laboratory, Department of Mechanical and Aerospace Engineering, University of Missouri-Rolla, 1870 Miner Circle Rolla MO 65409-0050 (United States)

2007-03-21T23:59:59.000Z

476

Environment and Climate Change  

E-Print Network [OSTI]

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

Galles, David

477

Forest Research: Climate Change  

E-Print Network [OSTI]

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

478

Climate Change Workshop 2007  

E-Print Network [OSTI]

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

Nebraska-Lincoln, University of

479

programs in climate change  

E-Print Network [OSTI]

existing programs in climate change science and infrastructure. The Laboratory has a 15- year history in climate change science. The Climate, Ocean and Sea Ice Modeling (COSIM) project develops and maintains advanced numerical models of the ocean, sea ice, and ice sheets for use in global climate change

480

Campus Conversations: CLIMATE CHANGE  

E-Print Network [OSTI]

review and input from scholars with expertise in climate change and communication. #12; Welcome Thank youCampus Conversations: CLIMATE CHANGE AND THE CAMPUS Southwestern Pennsylvania Program booklet is an adaptation and updating of Global Warming and Climate Change, a brochure developed in 1994

Attari, Shahzeen Z.

Note: This page contains sample records for the topic "rate change propagation" 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

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 5, MAY 2003 945 Propagation Model for the HVAC Duct as a  

E-Print Network [OSTI]

for the HVAC Duct as a Communication Channel Pavel V. Nikitin, Member, IEEE, Daniel D. Stancil, Senior Member (HVAC) ducts in buildings are typically hollow metal pipes which can be used as waveguides to carry such a communication system. This paper presents a propagation model for a straight HVAC duct terminated at both ends

Stancil, Daniel D.

482

Confined-Unconfined Changes above Longwall Coal  

Science Journals Connector (OSTI)

...was about 2 m from coal extraction about...and space by the mining and subsidence rates...In studies in Appalachia, Moebs and Barton...high-extraction coal mining. The rapid change...effects of longwall coal mining on overlying aquifers...

COLIN J BOOTH

483

Property:OpenEI/UtilityRate/DemandRateStructure/Tier4Rate | Open Energy  

Open Energy Info (EERE)

Rate" Rate" Showing 13 pages using this property. 4 4b524791-bef2-49b1-850b-458730755203 + 5 +, 6 +, 3 +, ... 4b524791-bef2-49b1-850b-458730755203 + 6 + 4b524791-bef2-49b1-850b-458730755203 + 3 + 4b524791-bef2-49b1-850b-458730755203 + 7 + 4b524791-bef2-49b1-850b-458730755203 + 5 + 4b524791-bef2-49b1-850b-458730755203 + 8 + 4b524791-bef2-49b1-850b-458730755203 + 5 + 4b524791-bef2-49b1-850b-458730755203 + 5 + 4b524791-bef2-49b1-850b-458730755203 + 6 + 4b524791-bef2-49b1-850b-458730755203 + 6 + E E40880ac-c27b-4cbf-a011-b0d7d6e10fe9 + 1 + E40880ac-c27b-4cbf-a011-b0d7d6e10fe9 + 1 + E40880ac-c27b-4cbf-a011-b0d7d6e10fe9 + 1 + Retrieved from "http://en.openei.org/w/index.php?title=Property:OpenEI/UtilityRate/DemandRateStructure/Tier4Rate&oldid=53975

484

Advertising Rates from May 2012  

E-Print Network [OSTI]

Advertising Rates from May 2012 Abitrich INSIDE: NEW LIFTOUT Isausedluxurycar worththerisk? Page8 May 5, 2012 #12;1 MODULE WIDE DRIVE TABLOID ADVERTISING SIZES VALID FROM MAY 2012 2 MODULES WIDE 8 3pm Thursday Display Phoned Bookings and AdOnline Noon Thursday Noon Thursday Display Advertising

Peters, Richard

485

Ballistic-phonon propagation in LiF  

Science Journals Connector (OSTI)

The interaction between high-frequency ballistic phonons and mass defects in LiF of natural isotopic composition has been studied with the use of a heat-pulse technique. Studies were made as a function of input power for samples of various length oriented along the [111] direction. The results indicate that surface imperfections have a profound effect on the transmission of high-frequency phonons. The experiments on suitably prepared surfaces yield a phonon scattering rate which is in excellent agreement with theoretical predictions and thermal conductivity measurements.

R. Soltis and J. Trivisonno

1984-11-15T23:59:59.000Z

486

Geometric Scaling for a Detonation Wave Governed by a Pressure-Dependent Reaction Rate and Yielding Confinement  

E-Print Network [OSTI]

The propagation of detonation waves in reactive media bounded by an inert, compressible layer is examined via computational simulations in two different geometries, axisymmetric cylinders and two dimensional, planar slabs. For simplicity, an ideal gas equation of state is used with a pressure-dependent reaction rate that results in a stable detonation wave structure. The detonation is initiated as an ideal Chapman-Jouguet (CJ) detonation with a one-dimensional structure, and then allowed to propagate into a finite diameter or thickness layer of explosive surrounded by an inert layer. The yielding confinement of the inert layer results in the detonation wave decaying to a sub-CJ steady state velocity or failing entirely. Simulations are performed with different values of the reaction rate pressure exponent (n = 2 and 3) and different impedance confinement (greater than, less than, and equal to the confinement of the explosive). The velocity decrement and critical dimension (critical diameter or thickness) are ...

Jianling, Li; Higgins, Andrew J

2014-01-01T23:59:59.000Z

487

1993 Wholesale Power and Transmission Rate Schedules.  

SciTech Connect (OSTI)

Bonneville Power Administration 1993 Wholesale Power Rate Schedules and General Rate Schedule Provisions and 1993 Transmission Rate Schedules and General Transmission Rate Schedule Provisions, contained herein, were approved on an interim basis effective October 1, 1993. These rate schedules and provisions were approved by the Federal Energy Commission, United States Department of Energy, in September, 1993. These rate schedules and provisions supersede the Administration`s Wholesale Power Rate Schedules and General Rate Schedule Provisions and Transmission Rate Schedules and General Transmission Rate Schedule Provisions effective October 1, 1991.

US Bonneville Power Administration

1993-10-01T23:59:59.000Z

488

High-Frame-Rate Oil Film Interferometry  

E-Print Network [OSTI]

The fluid dynamics video to which this abstract relates contains visualization of the response of a laminar boundary layer to a sudden puff from a small hole. The boundary layer develops on a flat plate in a wind tunnel; the hole is located at a streamwise Reynolds number of 100,000. The visualization of the boundary layer response is accomplished using interferometry of a transparent, thin film of oil placed on the surface immediately downstream of the hole and with its leading edge perpendicular to the direction of flow. Through lubrication theory, it is understood that the rate of change of the spacing of the interference fringes is proportional to the skin friction at any instant. For reference, a small disk-shaped protrusion of the type often used to trip the boundary layer in wind model tunnel testing is also shown. Three cases with different puff strengths are included. Using a high-speed commercial camera, frame rates in excess of 1000/sec have been recorded; the video shown here was taken at 24 frame...

White, Jonathan C; Chen, John

2010-01-01T23:59:59.000Z

489

Time growth rate and field profiles of hybrid modes excited by a relativistic elliptical electron beam in an elliptical metallic waveguide with dielectric rod  

SciTech Connect (OSTI)

The dispersion relation of guided electromagnetic waves propagating in an elliptical metallic waveguide with a dielectric rod driven by relativistic elliptical electron beam (REEB) is investigated. The electric field profiles and the growth rates of the waves are numerically calculated by using Mathieu functions. The effects of relative permittivity constant of dielectric rod, accelerating voltage, and current density of REEB on the growth rate are presented.

Jazi, B.; Rahmani, Z.; Abdoli-Arani, A. [Faculty of Physics, Department of Laser and Photonics, University of Kashan, Kashan (Iran, Islamic Republic of); Heidari-Semiromi, E. [Faculty of Physics, Department of Condense Matter, University of Kashan, Kashan (Iran, Islamic Republic of)

2012-10-15T23:59:59.000Z

490

Nucleation of a new phase on a surface that is changing irreversibly with time  

E-Print Network [OSTI]

Nucleation of a new phase almost always starts at a surface. This surface is almost always assumed not to change with time. However, surfaces can roughen, partially dissolve and change chemically with time. Each of these irreversible changes will change the nucleation rate at the surface, resulting in a time-dependent nucleation rate. Here we use a simple model to show that partial surface dissolution can qualitatively change the nucleation process, in a way that is testable in experiment. The changing surface means that the nucleation rate is increasing with time. There is an initial period during which no nucleation occurs, followed by relatively rapid nucleation.

Richard P. Sear

2014-01-02T23:59:59.000Z

491

Energy transfers in internal tide generation, propagation and dissipation in the deep ocean  

Science Journals Connector (OSTI)

The energy transfers associated with internal tide (IT) generation by a semi-diurnal surface tidal wave impinging on a supercritical meridionally uniform deep ocean ridge on the f-plane, and subsequent IT-propagation are analysed using the Boussinesq, free-surface, terrain-following ocean model Symphonie. The energy diagnostics are explicitly based on the numerical formulation of the governing equations, permitting a globally conservative, high-precision analysis of all physical and numerical/artificial energy transfers in a sub-domain with open lateral boundaries. The net primary energy balances are quantified using a moving average of length two tidal periods in a simplified control simulation using a single time-step, minimal diffusion, and a no-slip sea floor. This provides the basis for analysis of enhanced vertical and horizontal diffusion and a free-slip bottom boundary condition. After a four tidal period spin-up, the tidally averaged (net) primary energy balance in the generation region, extending ±20 km from the ridge crest, shows that the surface tidal wave loses approximately C = 720 W/m or 0.3% of the mean surface tidal energy flux (2.506 × 105 W/m) in traversing the ridge. This corresponds mainly to the barotropic-to-baroclinic energy conversion due to stratified flow interaction with sloping topography. Combined with a normalised net advective flux of baroclinic potential energy of 0.9 × C this causes a net local baroclinic potential energy gain of 0.72 × C and a conversion into baroclinic kinetic energy through the baroclinic buoyancy term of 1.18 × C. Tidally averaged, about 1.14 × C is radiated into the abyssal ocean through the total baroclinic flux of internal pressure associated with the IT- and background density field. This total baroclinic pressure flux is therefore not only determined by the classic linear surface-to-internal tide conversion, but also by the net advection of baroclinic (background) potential energy, indicating the importance of local processes other than linear IT-motion. In the propagation region (PR), integrated over the areas between 20 and 40 km from the ridge crest, the barotropic and baroclinic tide are decoupled. The net incoming total baroclinic pressure flux is balanced by local potential energy gain and outward baroclinic flux of potential energy associated with the total baroclinic density. The primary net energy balances are robust to changes in the vertical diffusion coefficient, whereas relatively weak horizontal diffusion significantly reduces the outward IT energy flux. Diapycnal mixing due to vertical diffusion causes an available potential energy loss of about 1% of the total domain-averaged potential energy gain, which matches k m - 1 k m ? 0 K V N 2 to within 0.5%, for km linearly distributed grid-levels and constant background density ?0, vertical diffusivity (KV) and buoyancy frequency (N).

J.W. Floor; F. Auclair; P. Marsaleix

2011-01-01T23:59:59.000Z

492

Conformation changes and protein folding induced by \\phi^4 interaction  

E-Print Network [OSTI]

A model to describe the mechanism of conformational dynamics in protein based on matter interactions using lagrangian approach and imposing certain symmetry breaking is proposed. Both conformation changes of proteins and the injected non-linear sources are represented by the bosonic lagrangian with an additional \\phi^4 interaction for the sources. In the model the spring tension of protein representing the internal hydrogen bonds is realized as the interactions between individual amino acids and nonlinear sources. The folding pathway is determined by the strength of nonlinear sources that propagate through the protein backbone. It is also shown that the model reproduces the results in some previous works.

Januar, M; Handoko, L T

2011-01-01T23:59:59.000Z

493

Two Modes of Change of the Distribution of Rain  

Science Journals Connector (OSTI)

The frequency and intensity of rainfall determine its character and may change with climate. A methodology for characterizing the frequency and amount of rainfall as functions of the rain rate is developed. Two modes of response are defined, one ...

Angeline G. Pendergrass; Dennis L. Hartmann

2014-11-01T23:59:59.000Z

494

User Subjectivity in Change Modeling of Streaming Itemsets  

E-Print Network [OSTI]

database and particularly for a data stream. Monitoring data streams is a challenging task because of a boiler may indicate malfunctioning in the process, while rate of change may indicate the severity

Bhatnagar, Vasudha

495

Constraining Climate Model Parameters from Observed 20th Century Changes  

E-Print Network [OSTI]

We present revised probability density functions for climate model parameters (effective climate sensitivity, the rate of deep-ocean heat uptake, and the strength of the net aerosol forcing) that are based on climate change ...

Forest, Chris Eliot

496

Digital Measures screen changes 1 Digital Measures screen changes 2  

E-Print Network [OSTI]

Digital Measures screen changes 1 #12; Digital Measures screen changes 2 #12; Digital Measures screen changes 3 #12; Digital Measures screen changes 4 #12; Digital Measures screen changes 5 #12; Digital Measures screen changes 6 #12; Digital Measures screen changes 7 #12

Barrash, Warren

497

Federal Energy Management Program: Water Rate Escalations  

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

Rate Rate Escalations to someone by E-mail Share Federal Energy Management Program: Water Rate Escalations on Facebook Tweet about Federal Energy Management Program: Water Rate Escalations on Twitter Bookmark Federal Energy Management Program: Water Rate Escalations on Google Bookmark Federal Energy Management Program: Water Rate Escalations on Delicious Rank Federal Energy Management Program: Water Rate Escalations on Digg Find More places to share Federal Energy Management Program: Water Rate Escalations on AddThis.com... Sustainable Buildings & Campuses Operations & Maintenance Greenhouse Gases Water Efficiency Basics Federal Requirements Best Management Practices Analysis and Evaluation Water Rate Escalations Evaluation Service Contracts Case Studies Resources

498

conference rates Summer 2014 Policy Statement  

E-Print Network [OSTI]

conference rates Summer 2014 Policy Statement University Catering and Conferences is an auxiliary and organizations holding education- ally related meetings and events on campus. conference rateS (all rates are per occupies, including lounge. Conference staff available for assistance 24 hours per day. Room-only rates

Oregon, University of

499

conference rates Summer 2013 Policy Statement  

E-Print Network [OSTI]

conference rates Summer 2013 Policy Statement University Catering and Conferences is an auxiliary and organizations holding education- ally related meetings and events on campus. conference rateS (all rates are per occupies, including lounge. Conference staff available for assistance 24 hours per day. Room-only rates

Oregon, University of

500

Interviewer's ratings of personality: can these ratings predict job performance?  

E-Print Network [OSTI]

; Goldberg, 1993a; Guastello, 1993; McCrae k Costa, 1985; McCrae & John, 1992) has been about the validity of the five-factor model as a measure of personality; in other words, does the model truly capture all traits of personality? The five-factor model...; Goldberg, 1981; McCrae & Costa, 1987; McCrae & John, 1992; Peabody & Goldberg, 1989). Tupes and Christal (1958, 1992) were the first to look at peer ratings of personality in a variety of samples. Although these samples varied in length and kind...

Archuleta, Kathryn Diane

2012-06-07T23:59:59.000Z