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1

Estimating the Payback Period of Additional Insulation | Department of  

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

the Payback Period of Additional Insulation the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

2

Estimating the Payback Period of Additional Insulation | Department of  

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

Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation Estimating the Payback Period of Additional Insulation June 24, 2012 - 1:17pm Addthis Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. Adding insulation in the attic of an existing home often results in a favorable payback. | Photo courtesy of Lieko Earle, NREL PIX 19612. What does this mean for me? Even if you hire a contractor to do the work, adding insulation to your home will likely have an attractive payback. If you can gather the information and plug it into an equation, you can determine the payback of adding insulation to your home. Use the equation below to estimate the cost effectiveness of adding insulation in terms of the "years to payback" for savings in heating costs.

3

Life-Cycle Cost and Payback Period Analysis for Commercial Unitary...  

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

and Payback Period Analysis for Commercial Unitary Air Conditioners Title Life-Cycle Cost and Payback Period Analysis for Commercial Unitary Air Conditioners Publication Type...

4

LBNL-54244 Life-cycle Cost and Payback Period Analysis for Commercial Unitary Air Conditioners  

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

44 44 Life-cycle Cost and Payback Period Analysis for Commercial Unitary Air Conditioners Greg Rosenquist, Katie Coughlin, Larry Dale, James McMahon, Steve Meyers Energy Analysis Department Environmental Energy Technologies Division Ernest Orlando Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720 March 2004 This work was supported by the Office of Building Technologies of the U.S. Department of Energy, under Contract No. DE-AC03-76SF00098. ii iii ABSTRACT This report describes an analysis of the economic impacts of possible energy efficiency standards for commercial unitary air conditioners and heat pumps on individual customers in terms of two metrics: life-cycle cost (LCC) and payback period (PBP). For each of the two equipment classes considered, the 11.5 EER provides the largest mean LCC savings. The results

5

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

SciTech Connect

This report describes an analysis of the economic impacts of possible energy efficiency standards for commercial unitary air conditioners and heat pumps on individual customers in terms of two metrics: life-cycle cost (LCC) and payback period (PBP). For each of the two equipment classes considered, the 11.5 EER provides the largest mean LCC savings. The results show how the savings vary among customers facing different electricity prices and other conditions. At 11.5 EER, at least 80% of the users achieve a positive LCC savings. At 12.0 EER, the maximum efficiency analyzed, mean LCC savings are lower but still positive. For the {ge} $65,000 Btu/h to <135,000 Btu/h equipment class, 59% of users achieve a positive LCC savings. For the $135,000 Btu/h to <240,000 Btu/h equipment class, 91% of users achieve a positive LCC savings.

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-03-31T23:59:59.000Z

6

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

2030. Estimating future electricity rates is very difficult,payback, the required electricity rate is only for the yearcase, the year 2008. The electricity rate used in the PBP

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

7

Payback | OpenEI  

Open Energy Info (EERE)

7 7 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142281687 Varnish cache server Payback Dataset Summary Description Global PV grid parity and market potential. Data is courtesy of Sean Ong. Source National Renewable Energy Laboratory Date Released Unknown Date Updated Unknown Keywords grid Parity Payback photovoltaic price PV Residential Data text/csv icon globalgridparity.csv (csv, 4.8 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Creative Commons CCZero Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote

8

Energy Payback for Energy Systems Ensembles During Growth  

E-Print Network (OSTI)

During periods of growth, the energy payback performance of new energy generating technologies deviates substantially from the usual static measures of energy return on investment (EROI), and time to breakeven (tB) for ...

Gutowski, Timothy G.

9

PV FAQs: What Is the Energy Payback for PV?  

DOE Green Energy (OSTI)

How long does a PV system have to operate to recover the energy-and the associated generation of pollution and CO2- that went into making the system? Energy paybacks for rooftop systems range from 1 to 4 years, depending on the system. Based on models and real data, the idea that PV cannot pay back its energy investment is simply a myth.

Not Available

2004-01-01T23:59:59.000Z

10

HST AND OPTICAL DATA REVEAL WHITE DWARF COOLING, SPIN, AND PERIODICITIES IN GW LIBRAE 3-4 YEARS AFTER OUTBURST  

SciTech Connect

Since the large amplitude 2007 outburst which heated its accreting, pulsating white dwarf, the dwarf nova system GW Librae has been cooling to its quiescent temperature. Our Hubble Space Telescope ultraviolet spectra combined with ground-based optical coverage during the third and fourth year after outburst show that the fluxes and temperatures are still higher than quiescence (T = 19,700 K and 17,300 K versus 16,000 K pre-outburst for a log g = 8.7 and d = 100 pc). The K{sub wd} of 7.6 {+-} 0.8 km s{sup -1} determined from the C I {lambda}1463 absorption line, as well as the gravitational redshift implies a white dwarf mass of 0.79 {+-} 0.08 M{sub Sun }. The widths of the UV lines imply a white dwarf rotation velocity v sin i of 40 km s{sup -1} and a spin period of 209 s (for an inclination of 11 deg and a white dwarf radius of 7 Multiplication-Sign 10{sup 8} cm). Light curves produced from the UV spectra in both years show a prominent multiplet near 290 s, with higher amplitude in the UV compared to the optical, and increased amplitude in 2011 versus 2010. As the presence of this set of periods is intermittent in the optical on weekly timescales, it is unclear how this relates to the non-radial pulsations evident during quiescence.

Szkody, Paula; Mukadam, Anjum S. [Department of Astronomy, University of Washington, Seattle, WA 98195 (United States); Gaensicke, Boris T., E-mail: szkody@astro.washington.edu, E-mail: mukadam@astro.washington.edu, E-mail: boris.gaensicke@warwick.ac.uk [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); and others

2012-07-10T23:59:59.000Z

11

PV FAQs: What is the Energy Payback for PV?  

DOE Green Energy (OSTI)

How long does a PV system have to operate to recover the energy--and the associated generation of pollution and CO{sub 2}--that went into making the system? Energy paybacks for rooftop systems range from 1 to 4 years, depending on the system. Based on models and real data, the idea that PV cannot pay back its energy investment is simply a myth.

Not Available

2004-12-01T23:59:59.000Z

12

Payback Analysis of Design Options for Residential Water Heaters  

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

Payback Analysis of Design Options for Residential Water Heaters Title Payback Analysis of Design Options for Residential Water Heaters Publication Type Report LBNL Report Number...

13

Ballast users plug life span, cooling savings into paybacks  

SciTech Connect

Energy-efficient ballasts are saving fluorescent lamp users energy expenses by reducing cooling as well as lighting costs and by extending bulb life. Retrofit calculations should include the cost of installing new ballasts with union labor. Three users describe their installations and their use of either simple payback or simple payback including replacement savings. (DCK)

Duffy, J.

1983-03-21T23:59:59.000Z

14

Chiller-heater unit nets building 2-yr payback  

SciTech Connect

A 500-ton double-absorption Hitachi Paraflow chiller-heater that switches from purchased steam to natural gas will reduce a Manhattan office building's energy costs by 55% and achieve a two-year payback. The new system replaces a steam-powered, single-stage absorption chiller. By reusing heat in a second-stage generator, the Hitachi unit uses only half as many Btus per ton as a conventional chiller. (DCK)

Duffy, J.

1983-05-09T23:59:59.000Z

15

Energy Payback Optimization of Thermoelectric Power Generator Systems  

E-Print Network (OSTI)

An analytic model for optimizing thermoelectric power generation system is developed and utilized for parametric studies. This model takes into account the external thermal resistances with hot and cold reservoirs. In addition, the spreading thermal resistance in the module substrates is considered to find the impact of designing small fraction of thermo elements per unit area. Previous studies are expanded by a full optimization of the electrical and thermal circuits. The optimum condition satisfies both electrical load resistance match with the internal resistance and the thermal resistance match with the heat source and the heat sink. Thermoelectric element aspect ratio and fill factor are found to be key parameters to optimize. The optimum leg length and the maximum output power are determined by a simple formula. The output power density per mass of the thermoelectric material has a peak when thermo elements cover a fractional area of ~1%. The role of the substrate heat spreading for thermoelectric power generation is equally significant as thermoelement. For a given heat source, the co-optimization of the heat sink and the thermoelectric module should be performed. Active cooling and the design of the heat sink are customized to find the energy payback for the power generation system. The model includes both the air cooled heat sinks and the water cooled micro channels. We find that one can reduce the mass of thermoelement to around 3~10 % of that in commercial modules for the same output power, as long as the module and elements are designed properly. Also one notes that higher heat flux sources have significantly larger energy payback and reduced cost per output power.

Kazuaki Yazawa; Ali Shakouri

2010-01-01T23:59:59.000Z

16

QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US PAYBACK vs. CASH FLOW  

E-Print Network (OSTI)

QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US --- PAYBACK vs. CASH FLOW DETERMINATION OF FAIR -- the paper discusses why payback may not be the most appropriate measure for residential PV applications. For residential applications, this value is currently set at residential net-metered retail rates. We present

Perez, Richard R.

17

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

Energy Regulatory Commission (FERC) Form 1 filings. http://Energy Regulatory Commission (FERC) website through Form 714annual data submitted to FERC from regulated utilities and

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

18

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

18 2.3.1 Electricity Price19 2.3.2 Electricity PriceELECTRICITY PRICES . . . . . . . . . . . . . . . . . . . 37

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

19

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

37 RESULTS USING TARIFF-BASED ELECTRICITYHourly-based Electricity Price Models Tariff-based HourlyRESULTS USING TARIFF-BASED ELECTRICITY PRICES LCC Results

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

20

LBNL-54244 Life-cycle Cost and Payback Period Analysis for Commercial...  

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

costs (increased LCC). Moving towards the right on the axis, values greater than zero indicate reductions in LCC (LCC savings). LCC savings occur when increased total...

Note: This page contains sample records for the topic "4-year payback period" 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

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

ground water source), electrically operated, unitary central air conditioners and central air conditioning heat pumps

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

22

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

Prices Computed from Air Conditioning Load Reductions UsingRefrigerating and Air-Conditioning Engineers, Inc. (ASHRAE)/Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE),

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

23

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

avoid bias in the electricity bill calculations, we assignedarrive at an annual electricity bill. The difference betweenbill and multiplied it by the ratio of the total air conditioning energy use to the total building electricity

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

24

Life-cycle cost and payback period analysis for commercial unitary air conditioners  

E-Print Network (OSTI)

energy expenses based upon electricity prices that customers may pay if electricity markets become deregulated. Electricity price trends:

Rosenquist, Greg; Coughlin, Katie; Dale, Larry; McMahon, James; Meyers, Steve

2004-01-01T23:59:59.000Z

25

Uncertainty and sensitivity analyses of ballast life-cycle cost and payback period  

SciTech Connect

The paper introduces an innovative methodology for evaluating the relative significance of energy-efficient technologies applied to fluorescent lamp ballasts. The method involves replacing the point estimates of life cycle cost of the ballasts with uncertainty distributions reflecting the whole spectrum of possible costs, and the assessed probability associated with each value. The results of uncertainty and sensitivity analyses will help analysts reduce effort in data collection and carry on analysis more efficiently. These methods also enable policy makers to gain an insightful understanding of which efficient technology alternatives benefit or cost what fraction of consumers, given the explicit assumptions of the analysis.

McMahon, James E.; Liu, Xiaomin; Turiel, Ike; Hakim, Sajid; Fisher, Diane

2000-06-01T23:59:59.000Z

26

Output Performance and Payback Analysis of a Residential Photovoltaic System in Colorado: Preprint  

SciTech Connect

Cost of installation and ownership of a 9.66-kilowatt (kW) residential photovoltaic system is described, and the performance of this system over the past 3 years is shown. The system is located in Colorado at 40 degrees latitude and consists of arrays on two structures. Two arrays are installed on a detached garage, and these are each composed of 18 Kyocera 130-W modules strung in series facing south at an angle of 40 degrees above horizontal. Each 18-panel array feeds into a Xantrex/Schneider Electric 2.8-kW inverter. The other two arrays are installed on the house and face south at an angle of 30 degrees. One of these arrays has twelve 205-W Kyocera panels in series, and the other is made up of twelve 210-Kyocera panels. Each of these arrays feeds into Xantrex/Schneider Electric 3.3-kW inverters. Although there are various shading issues from trees and utility poles and lines, the overall output resembles that which is expected from PVWatts, a solar estimate program. The array cost, which was offset by rebates from the utility company and federal tax credits, was $1.17 per watt. Considering measured system performance, the estimated payback time of the system is 9 years.

Johnston, S.

2012-06-01T23:59:59.000Z

27

Net Energy Payback and CO{sub 2} Emissions from Three Midwestern Wind Farms: An Update  

SciTech Connect

This paper updates a life-cycle net energy analysis and carbon dioxide emissions analysis of three Midwestern utility-scale wind systems. Both the Energy Payback Ratio (EPR) and CO{sub 2} analysis results provide useful data for policy discussions regarding an efficient and low-carbon energy mix. The EPR is the amount of electrical energy produced for the lifetime of the power plant divided by the total amount of energy required to procure and transport the materials, build, operate, and decommission the power plants. The CO{sub 2} analysis for each power plant was calculated from the life-cycle energy input data.A previous study also analyzed coal and nuclear fission power plants. At the time of that study, two of the three wind systems had less than a full year of generation data to project the life-cycle energy production. This study updates the analysis of three wind systems with an additional four to eight years of operating data.The EPR for the utility-scale wind systems ranges from a low of 11 for a two-turbine system in Wisconsin to 28 for a 143-turbine system in southwestern Minnesota. The EPR is 11 for coal, 25 for fission with gas centrifuge enriched uranium and 7 for gaseous diffusion enriched uranium. The normalized CO{sub 2} emissions, in tonnes of CO{sub 2} per GW{sub e}h, ranges from 14 to 33 for the wind systems, 974 for coal, and 10 and 34 for nuclear fission using gas centrifuge and gaseous diffusion enriched uranium, respectively.

White, Scott W. [University of Kansas, Kansas Geological Survey (United States)], E-mail: whites@kgs.ku.edu

2006-12-15T23:59:59.000Z

28

Fermi Large Area Telescope Operations: Progress Over 4 Years  

SciTech Connect

The Fermi Gamma-ray Space Telescope was launched into orbit in June 2008, and is conducting a multi-year gamma-ray all-sky survey, using the main instrument on Fermi, the Large Area Telescope (LAT). Fermi began its science mission in August 2008, and has now been operating for almost 4 years. The SLAC National Accelerator Laboratory hosts the LAT Instrument Science Operations Center (ISOC), which supports the operation of the LAT in conjunction with the Mission Operations Center (MOC) and the Fermi Science Support Center (FSSC), both at NASA's Goddard Space Flight Center. The LAT has a continuous output data rate of about 1.5 Mbits per second, and data from the LAT are stored on Fermi and transmitted to the ground through TDRS and the MOC to the ISOC about 10 times per day. Several hundred computers at SLAC are used to process LAT data to perform event reconstruction, and gamma-ray photon data are subsequently delivered to the FSSC for public release with a few hours of being detected by the LAT. We summarize the current status of the LAT, and the evolution of the data processing and monitoring performed by the ISOC during the first 4 years of the Fermi mission, together with future plans for further changes to detected event data processing and instrument operations and monitoring.

Cameron, Robert A.; /SLAC

2012-06-28T23:59:59.000Z

29

Microsoft Word - Energy Code Enforcement Funding Task Force ...  

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

of EIA's Annual Energy Outlook 2010, including projected construction levels, energy consumption, and fuel prices. The task force conservatively assumed a 4-year payback period...

30

GM and Amtrak opt for combined-cycle cogeneration: GM figures 2-year payback; electricity sell-back is gravy  

Science Conference Proceedings (OSTI)

General Motors anticipates a $2 million reduction in annual energy costs with a 10 MW gas-fired combined-cycle cogeneration system that will have a two-year payback. The system will provide about two-thirds of the plant's total power and one-third of its steam requirements. The revenues from selling power generated during weekends and off-shifts to Detroit Edison are not part of the calculations. This system includes two model 501-KB5 gas turbines and a 10 MW, air-cooled generator, with exhaust gases captured and sent to a waste heat recovery boiler that can produce up to 40,000 pph of high-pressure steam, which is fed to a steam turbine to boost capacity to 12 MW when steam loads are low. Low pressure steam contributes to the space heating system. The system will serve as a model for other GM facilities.

Barber, J.

1985-06-10T23:59:59.000Z

31

Assessing the impacts of feed in tariffs and metering configuration (gross or net), on the payback period for an average solar PV system in metropolitan Melbourne.  

E-Print Network (OSTI)

??With an increasing customer focus on renewable energy and the perceived benefits from widespread solar photovoltaic (PV) generation there has been a rapid increase in… (more)

Bailey, Darren

2009-01-01T23:59:59.000Z

32

BS in General Science, with various specializations possible Typical Program of Study1 4 year  

E-Print Network (OSTI)

BS in General Science, with various specializations possible Typical Program of Study1 ­ 4 year Fall Quarter Winter Quarter Spring Quarter Freshman Science (5) Science (5) Science (5) Math (5) Math (5) Core (5) Core (5)2 Core (5) Core (5) Sophomore Science (5) Science (5) Science (5) Science (5

Carter, John

33

Power Spectrum of Primordial Inhomogeneity Determined from the 4-Year COBE DMR Sky Maps  

E-Print Network (OSTI)

Fourier analysis and power spectrum estimation of the cosmic microwave background anisotropy on an incompletely sampled sky developed by Gorski (1994) has been applied to the high-latitude portion of the 4-year COBE DMR 31.5, 53 and 90 GHz sky maps. Likelihood analysis using newly constructed Galaxy cuts (extended beyond |b| = 20deg to excise the known foreground emission) and simultaneously correcting for the faint high latitude galactic foreground emission is conducted on the DMR sky maps pixelized in both ecliptic and galactic coordinates. The Bayesian power spectrum estimation from the foreground corrected 4-year COBE DMR data renders n ~ 1.2 +/- 0.3, and Q_{rms-PS} ~ 15.3^{+3.7}_{-2.8} microK (projections of the two-parameter likelihood). These results are consistent with the Harrison-Zel'dovich n=1 model of amplitude Q_{rms-PS} ~ 18 microK detected with significance exceeding 14sigma (dQ/Q < 0.07). (A small power spectrum amplitude drop below the published 2-year results is predominantly due to the application of the new, extended Galaxy cuts.)

K. M. Gorski; A. J. Banday; C. L. Bennett; G. Hinshaw; A. Kogut; G. F. Smoot; E. L. Wright

1996-01-12T23:59:59.000Z

34

2-Point Correlations in the COBE DMR 4-Year Anisotropy Maps  

E-Print Network (OSTI)

The 2-point temperature correlation function is evaluated from the 4-year COBE DMR microwave anisotropy maps. We examine the 2-point function, which is the Legendre transform of the angular power spectrum, and show that the data are statistically consistent from channel to channel and frequency to frequency. The most likely quadrupole normalization is computed for a scale-invariant power-law spectrum of CMB anisotropy, using a variety of data combinations. For a given data set, the normalization inferred from the 2-point data is consistent with that inferred by other methods. The smallest and largest normalization deduced from any data combination are 16.4 and 19.6 uK respectively, with a value ~18 uK generally preferred.

G. Hinshaw; A. J. Banday; C. L. Bennett; K. M. Gorski; A. Kogut; C. H. Lineweaver; G. F. Smoot; E. L. Wright

1996-01-12T23:59:59.000Z

35

Band Power Spectra in the COBE DMR 4-Year Anisotropy Maps  

E-Print Network (OSTI)

We employ a pixel-based likelihood technique to estimate the angular power spectrum of the COBE Differential Microwave Radiometer (DMR) 4-year sky maps. The spectrum is consistent with a scale-invariant power-law form with a normalization, expressed in terms of the expected quadrupole anisotropy, of Q_{rms-PS|n=1} = 18 +/- 1.4 uK, and a best-fit spectral index of 1.2 +/- 0.3. The normalization is somewhat smaller than we concluded from the 2-year data, mainly due to additional Galactic modeling. We extend the analysis to investigate the extent to which the ``small" quadrupole observed in our sky is statistically consistent with a power-law spectrum. The most likely quadrupole amplitude is somewhat dependent on the details of Galactic foreground subtraction and data selection, ranging between 7 and 10 uK, but in no case is there compelling evidence that the quadrupole is too small to be consistent with a power-law spectrum. We conclude with a likelihood analysis of the band power amplitude in each of four spectral bands between l = 2 and 40, and find no evidence for deviations from a simple power-law spectrum.

G. Hinshaw; A. J. Banday; C. L. Bennett; K. M. Gorski; A. Kogut; G. F. Smoot; E. L. Wright

1996-01-12T23:59:59.000Z

36

A description of sources detected by INTEGRAL during the first 4 years of observations  

E-Print Network (OSTI)

Parameters from the literature, such as positions, photoelectric absorption (nH), spin and orbital periods, and distances or redshifts, were collected for all ~500 sources detected by INTEGRAL-ISGRI so far. We investigate where new and previously-known sources detected by ISGRI fit in the parameter space of high-energy objects, and we use the parameters to test correlations expected from theoretical predictions. For example, the influence of the local absorbing matter on periodic modulations is studied for Galactic High-Mass X-ray Binaries (HMXBs) with OB supergiant and Be companions. We examine the spatial distribution of different types of sources in the Milky Way using various projections of the Galactic plane, in order to highlight signatures of stellar evolution and to speculate on the origin of the group of sources whose classifications are still uncertain. ISGRI has detected similar numbers of X-ray Binaries and Active Galactic Nuclei (AGN). The former group contains new members of the class of HMXBs with supergiant stellar companions. Thanks to these additional systems, we are able to show that HMXBs are generally segregated in plots of intrinsic nH versus the orbital period of the system and versus the spin period of the pulsar, based on whether the companion is a Be or an OB supergiant star. We also find a tentative but expected anti-correlation between nH and the orbital period, and a possible and unexpected correlation between the nH and the spin period. While only a handful of new Low-Mass X-ray Binaries (LMXBs) have been discovered, there are many sources that remain unclassified and they appear to follow a spatial distribution typical of Galactic sources (especially LMXBs) rather than extragalactic sources.

A. Bodaghee; T. J. -L. Courvoisier; J. Rodriguez; V. Beckmann; N. Produit; D. Hannikainen; E. Kuulkers; D. R. Willis; G. Wendt

2007-03-02T23:59:59.000Z

37

Screen payback on cogeneration-system options  

SciTech Connect

Presented here are charts that provide a quick look at the relationship among the primary variables that affect the viability of a cogeneration project. The graphs are not intended to be complete feasibility studies, but rather screening aids for understanding the important interrelationships. Use of the charts will enable engineers to compare the predominant system options: gas turbine with heat-recovery steam generator (HRSG), diesel engine with HRSG, and fired boiler with steam turbine. The three options are presented separately because of differing capital costs and heat balances.

Wilson, F.

1984-06-01T23:59:59.000Z

38

Active period Sleep period Active period Sleep period Fig. 1. Sleep-awake cycles of SMAC.  

E-Print Network (OSTI)

A cycle Active period Sleep period Active period Sleep period SYNC usage DATA usage time Fig. 1 Yang and Wendi Heinzelman Dept. of Electrical and Computer Engineering, University of Rochester duty cycles. Since a smaller duty cycle leads to a longer network lifetime but lower throughput

Heinzelman, Wendi

39

Ocean Thermal Energy Conversion Mostly about USA  

E-Print Network (OSTI)

Structures (Plantships) · Bottom-Mounted Structures · Model Basin Tests/ At-Sea Tests · 210 kW OC-OTEC systems and with an investment payback period estimated at 3 to 4 years. #12;OTEC 12 Energy Carriers & Attachments #12;#12;#12;#12;Bottom-Mounted Structures · Fixed Towers · Guyed Towers · TLP not shown · Causeway

40

Life-cycle cost analysis of energy efficiency design options for residential furnaces and boilers  

E-Print Network (OSTI)

AND PAYBACK PERIOD RESULTS USING ALTERNATIVE ENERGY PRICEPERIOD RESULTS USING ALTERNATIVE ENERGY PRICE SCENARIOS C.1and payback results using alternative energy price scenarios

Lutz, James; Lekov, Alex; Whitehead, Camilla Dunham; Chan, Peter; Meyers, Steve; McMahon, James

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Potential Benefits from Improved Energy Efficiency of Key Electrical Products: The Case of India  

E-Print Network (OSTI)

operating cost (electricity bill), and DR is the consumerPrice $US Annual Electricity Bill Payback Period TotalRetail Price $US Annual Electricity Bill Payback Total Delta

McNeil, Michael; Iyer, Maithili; Meyers, Stephen; Letschert, Virginie; McMahon, James E.

2005-01-01T23:59:59.000Z

42

Budget Period 1  

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

Budget Period 1 Budget Period 1 Budget Period 2 Budget Period 3 0.0% 0.0% 0.0% PMC123.1 - Budget Justification for SF 424A Budget 0 Additional Explanations/Comments (as necessary) *IMPORTANT: In the space provided below (or as an attachment) provide a complete explanation and the full calculations used to derive the total indirect costs. If the total indirect costs are a cumulative amount of more than one calculation or rate application, the explanation and calculations should identify all rates used, along with the base they were applied to (and how the base was derived), and a total for each (along with grand total). The rates and how they are applied should not be averaged to get one indirect cost percentage. NOTE: The indirect rate should be applied to both the Federal Share and Recipient Cost Share.

43

Periodic load balancing  

Science Conference Proceedings (OSTI)

Multiprocessor load balancing aims to improve performance by moving jobs from highly loaded processors to more lightly loaded processors. Some schemes allow only migration of new jobs upon arrival, while other schemes allow migration of ... Keywords: heavy traffic diffusion approximations, load balancing, periodic load balancing, reflected Brownian motion, resource sharing, transient behavior

Gísli Hjálmtýsson; Ward Whitt

1998-06-01T23:59:59.000Z

44

Effective Rate Period  

NLE Websites -- All DOE Office Websites (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

45

On occult period maps  

E-Print Network (OSTI)

We consider the "occult" period maps into ball quotients which exist for the moduli spaces of cubic surfaces, cubic threefolds, non-hyperelliptic curves of genus three and four. These were constructed in the work of Allcock/Carlson/Toledo, Looijenga/Swierstra, and Kondo. We interpret these maps as morphisms into moduli spaces of polarized abelian varieties of Picard type, and show that these morphisms, whose initial construction is transcendental, are defined over the natural field of definition of the spaces involved. This paper is extracted from section 15 of our paper arXiv:0912.3758, and differs from it only in some points of exposition.

Kudla, Stephen

2012-01-01T23:59:59.000Z

46

Periodicity estimation of Dynamic Textures  

Science Conference Proceedings (OSTI)

Dynamic Textures (DTs) are image sequences of natural events like fire, smoke, water etc., that possesses regular motion patterns. Periodicity is a widely used tool to analyse regular structures of periodic one dimensional signals as well as two dimensional ... Keywords: co-occurrence matrix, dynamic textures, image sequences, image texture analysis, motion patterns, natural events, periodicity estimation, temporal textures

Khalid Zaman Bijon; Ahmed Hasan; Ashfaqur Rahman; Manzur Murshed

2008-03-01T23:59:59.000Z

47

Effective Steam Trap Selection/Maintenance - Its Payback  

E-Print Network (OSTI)

In oil refineries and petrochemical plants large number of steam traps are used to discharge condensate from steam mains, tracers and process equipment. Early efforts on steam traps focused almost exclusively on their selection and sizing, and it was not until the 1973 oil embargo that a need for regular maintenance became recognized. Although relatively small pieces of equipment, traps are responsible for large quantities of steam losses, decreased equipment efficiency and high maintenance costs; e.g., a steam trap leaking 100 psig steam through a 1/8 inch orifice costs at least $2k/yr if steam is valued at $5/k lb. Typically, a steam trap survey identifies 20-60% of traps malfunctioning. Therefore, establishing an effective steam trap selection/maintenance program is not simple but can be extremely profitable. This paper will show how a successful checking/maintenance program can result in high returns by using a case study at an Exxon plant. The example also shows how a central engineering organization can interact with plant technicians/ maintenance personnel to help implement an effective steam trap maintenance program at competitive costs and high returns.

Garcia, E.

1984-01-01T23:59:59.000Z

48

Heat recovery in laundry yields 18-month payback  

SciTech Connect

A heat exchanger used to preheat hot water in a commercial laundry paid for itself in 19 months, despite a 10% increase in local natural gas rates. The Aurora, Illinois hospital commercial laundry chose a water-to-water shell and tube heat reclaimer system. A programmed control panel opens and closes valves at the proper temperature. Dirty water from the laundry cycle is screened to remove particles and returned to the heat exchanger to preheat incoming city water. Dirty water from the exchanger is discharged into the city sewer.

Hines, V.

1985-07-29T23:59:59.000Z

49

Hotel gets 1-yr. payback from propane-fired cogenerator  

SciTech Connect

A Philadelphia Ramada Inn recovered the costs of a $150,000 propane-fired cogenerator system within a year. The system reduced the energy consumed for hot water and air conditioning by 35% and reversed the high energy costs the hotel incurred when it was forced to shift from natural gas to electricity. The 170 horsepower system, which handles a variety of liquid and gaseous fuels as well as propane, replaces two boilers that were used to heat water. The hotel supplements cogenerated power with purchases from the utility. Waste heat is recaptured for space and water heating. The system's overall efficiency is 96%.

Barber, J.

1983-08-22T23:59:59.000Z

50

Coupling light to periodic nanostructures.  

E-Print Network (OSTI)

??This thesis describes coupling of light to periodic structures. A material is patterned with a regular pattern on a length scale comparable to the wavelength… (more)

Driessen, Eduard Frans Clemens

2009-01-01T23:59:59.000Z

51

Periodic  

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

04 04 by C.G. Wohl (LBNL). Adapted from the Commission of Atomic Weights and Isotopic Abundances, "Atomic Weights of the Elements 1995," Pure and Applied Chemistry 68, 2339 (1996), and G. Audi and A.H. Wapstra, "The 1993 Mass Evaluation," Nucl. Phys. A565, 1 (1993). The atomic number (top left) is the number of protons in the nucleus. The atomic mass (bottom) is weighted by isotopic abundances in the Earth's surface. For a new determination of atomic masses, not weighted by abundances, see G. Audi, A.H. Wapstra, and C. Thibault, Nucl. Phys. A729, 337 (2003). Atomic masses are relative to the mass of the carbon-12 isotope, defined to be exactly 12 unified atomic mass units (u). Errors range from 1 to 9 in the last digit quoted. Relative isotopic abundances often vary considerably, both in natural and commercial samples. A number in parentheses is the mass of the longest-lived

52

Discontinuous bifurcations of periodic solutions  

Science Conference Proceedings (OSTI)

This paper discusses different aspects of bifurcations of periodic solutions in discontinuous systems. It is explained how jumps in the fundamental solution matrix lead to jumps of the Floquet multipliers of periodic solutions. A Floquet multiplier of ... Keywords: Bifurcation, Discontinuous, Dry friction, Stick-slip

R. I. Leine; D. H. Van Campen

2002-08-01T23:59:59.000Z

53

Life-cycle cost analysis of energy efficiency design options for residential furnaces and boilers  

E-Print Network (OSTI)

Energy Prices . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AND PAYBACK PERIOD RESULTS USING ALTERNATIVE ENERGY PRICEUSING ALTERNATIVE ENERGY PRICE SCENARIOS C.1 INTRODUCTION

Lutz, James; Lekov, Alex; Whitehead, Camilla Dunham; Chan, Peter; Meyers, Steve; McMahon, James

2004-01-01T23:59:59.000Z

54

Performance Period Total Fee Paid  

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

Period Period Total Fee Paid 4/29/2012 - 9/30/2012 $418,348 10/1/2012 - 9/30/2013 $0 10/1/2013 - 9/30/2014 $0 10/1/2014 - 9/30/2015 $0 10/1/2015 - 9/30/2016 $0 Cumulative Fee Paid $418,348 Contract Type: Cost Plus Award Fee Contract Period: $116,769,139 November 2011 - September 2016 $475,395 $0 Fee Information Total Estimated Contract Cost $1,141,623 $1,140,948 $1,140,948 $5,039,862 $1,140,948 Maximum Fee $5,039,862 Minimum Fee Fee Available Portage, Inc. DE-DT0002936 EM Contractor Fee Site: MOAB Uranium Mill Tailings - MOAB, UT Contract Name: MOAB Uranium Mill Tailings Remedial Action Contract September 2013 Contractor: Contract Number:

55

THE INDUCTION PERIOD IN PHOTOSYNTHESIS  

E-Print Network (OSTI)

When a plant is illuminated, its rate of photosynthesis is at first low and gradually increases until it becomes constant. This induction period was first observed by Osterhout and Haas (1918) for UIva and independently confirmed by Warburg (1920) with Chlorella. It has

L. Smith

1937-01-01T23:59:59.000Z

56

Stability of Underwater Periodic Locomotion  

E-Print Network (OSTI)

Most aquatic vertebrates swim by lateral flapping of their bodies and caudal fins. While much effort has been devoted to understanding the flapping kinematics and its influence on the swimming efficiency, little is known about the stability (or lack of) of periodic swimming. It is believed that stability limits maneuverability and body designs/flapping motions that are adapted for stable swimming are not suitable for high maneuverability and vice versa. In this paper, we consider a simplified model of a planar elliptic body undergoing prescribed periodic heaving and pitching in potential flow. We show that periodic locomotion can be achieved due to the resulting hydrodynamic forces, and its value depends on several parameters including the aspect ratio of the body, the amplitudes and phases of the prescribed flapping. We obtain closed-form solutions for the locomotion and efficiency for small flapping amplitudes, and numerical results for finite flapping amplitudes. We then study the stability of the (finite amplitude flapping) periodic locomotion using Floquet theory. We find that stability depends nonlinearly on all parameters. Interesting trends of switching between stable and unstable motions emerge and evolve as we continuously vary the parameter values. This suggests that, for live organisms that control their flapping motion, maneuverability and stability need not be thought of as disjoint properties, rather the organism may manipulate its motion in favor of one or the other depending on the task at hand.

Fangxu Jing; Eva Kanso

2013-04-18T23:59:59.000Z

57

Maslov indices for periodic orbits  

E-Print Network (OSTI)

It is shown that there is a generalization of the Conley-Zehnder index for periodic trajectories of a classical Hamiltonian system $(Q, \\omega, H)$ from the case $Q = T^*R^n$ to arbitrary symplectic manifolds. As it turns out, it is precisely this index which appears as a Maslov phase in the trace formulas by Gutzwiller and Duistermaat-Guillemin. Contribution presented at the XIX ICGTMP Salamanca June 92.

Meinrenken, E

1992-01-01T23:59:59.000Z

58

Lighting energy efficiency opportunities at Cheyenne Mountain Air Station  

SciTech Connect

CMAS is an intensive user of electricity for lighting because of its size, lack of daylight, and 24-hour operating schedule. Argonne National Laboratory recently conducted a lighting energy conservation evaluation at CMAS. The evaluation included inspection and characterization of existing lighting systems, analysis of energy-efficient retrofit options, and investigation of the environmental effects that these lighting system retrofits could have when they are ready to be disposed of as waste. Argonne devised three retrofit options for the existing lighting systems at various buildings: (1) minimal retrofit--limited fixture replacement; (2) moderate retrofit--more extensive fixture replacement and limited application of motion detectors; and (3) advanced retrofit--fixture replacement, reduction in the number of lamps, expansion of task lighting, and more extensive application of motion detectors. Argonne used data on electricity consumption to analyze the economic and energy effects of these three retrofit options. It performed a cost analysis for each retrofit option in terms of payback. The analysis showed that lighting retrofits result in savings because they reduce electricity consumption, cooling load, and maintenance costs. The payback period for all retrofit options was found to be less than 2 years, with the payback period decreasing for more aggressive retrofits. These short payback periods derived largely from the intensive (24-hours-per-day) use of electric lighting at the facility. Maintenance savings accounted for more than half of the annual energy-related savings under the minimal and moderate retrofit options and slightly less than half of these savings under the advanced retrofit option. Even if maintenance savings were excluded, the payback periods would still be impressive: about 4.4 years for the minimal retrofit option and 2 years for the advanced option. The local and regional environmental impacts of the three retrofit options were minimal.

Molburg, J.C.; Rozo, A.J.; Sarles, J.K.; Haffenden, R.A.; Thimmapuram, P.R.; Cavallo, J.D.

1996-06-01T23:59:59.000Z

59

Waste to Energy and Absorption Chiller: A Case Study  

E-Print Network (OSTI)

All measured performance characteristics corresponded well to manufacturer's specifications or were within the expected range for this type of incinerator. The simplified economic analysis showed a payback of period 4.5 years. An optimized payback calculation based on a set of possible improvements to the waste-to-energy system showed a payback period of 3.8 years.

Wolpert, J.

1990-01-01T23:59:59.000Z

60

Climatological Time Series with Periodic Correlation  

Science Conference Proceedings (OSTI)

Many climatological time series display a periodic correlation structure. This paper examines three issues encountered when analyzing such time series: detection of periodic correlation, modeling periodic correlation, and trend estimation under ...

Robert Lund; Harry Hurd; Peter Bloomfield; Richard Smith

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Computing with almost periodic functions  

E-Print Network (OSTI)

The paper develops a method for discrete computational Fourier analysis of functions defined on quasicrystals and other almost periodic sets. A key point is to build the analysis around the emerging theory of quasicrystals and diffraction in the setting on local hulls and dynamical systems. Numerically computed approximations arising in this way are built out of the Fourier module of the quasicrystal in question, and approximate their target functions uniformly on the entire infinite space. The methods are entirely group theoretical, being based on finite groups and their duals, and they are practical and computable. Examples of functions based on the standard Fibonacci quasicrystal serve to illustrate the method (which is applicable to all quasicrystals modeled on the cut and project formalism).

R. V. Moody; M. Nesterenko; J. Patera

2008-08-13T23:59:59.000Z

62

Gauge Interaction as Periodicity Modulation  

E-Print Network (OSTI)

The paper is devoted to a geometrical interpretation of gauge invariance in terms of the formalism of field theory in compact space-time dimensions [arXiv:0903.3680]. In this formalism, the kinematic information of an interacting elementary particle is encoded on the relativistic geometrodynamics of the boundary of the theory through local transformations of the underlying space-time coordinates. Therefore, gauge interaction is described as invariance of the theory under local deformations of the boundary, the resulting local variations of field solution are interpreted as internal transformations, and the internal symmetries of the gauge theory turn out to be related to corresponding local space-time symmetries. In the case of local infinitesimal isometric transformations, Maxwell's kinematics and gauge invariance are inferred directly from the variational principle. Furthermore we explicitly impose periodic conditions at the boundary of the theory as semi-classical quantization condition in order to investigate the quantum behavior of gauge interaction. In the abelian case the result is a remarkable formal correspondence with scalar QED.

Donatello Dolce

2011-10-03T23:59:59.000Z

63

Network performance measurement with periodic streams  

Science Conference Proceedings (OSTI)

This memo describes a periodic sampling method and relevant metrics for assessing the performance of IP networks. First, the memo motivates periodic sampling and addresses the question of its value as an alternative to the Poisson sampling described ...

V. Raisanen; G. Grotefeld; A. Morton

2002-11-01T23:59:59.000Z

64

Vertically Aligned and Periodically Distributed Carbon Nanotube  

Science Conference Proceedings (OSTI)

Presentation Title, Vertically Aligned and Periodically Distributed Carbon Nanotube (CNT) ... Application of Carbon Nanotubes – Energy to Bioelectronic Sensor.

65

Experimental observation of a complex periodic window  

E-Print Network (OSTI)

The existence of a special periodic window in the two-dimensional parameter space of an experimental Chua's circuit is reported. One of the main reasons that makes such a window special is that the observation of one implies that other similar periodic windows must exist for other parameter values. However, such a window has never been experimentally observed, since its size in parameter space decreases exponentially with the period of the periodic attractor. This property imposes clear limitations for its experimental detection.

D. M. Maranhão; M. S. Baptista; J. C. Sartorelli; I. L. Caldas

2007-12-22T23:59:59.000Z

66

SES Probationary Period | Department of Energy  

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

SES Probationary Period SES Probationary Period SES Probationary Period An individual's initial appointment as an SES career appointee becomes final only after the individual has served a 1-year probationary period as a career appointee. That employee's rating official must perform an assessment of the new SES's performance during the probationary period. After the one year the selecting official must certify that the appointee performed at the level of excellence expected of a senior executive during the probationary period. When a career appointee's executive qualification have been certified by a Qualifications Review Board on the basis of special or unique qualities, as described in Sec. 317.502(c), the probationary assessment must address any executive development activities the agency identified in support of the

67

Risk-averse periodic preventive maintenance optimization.  

E-Print Network (OSTI)

??We consider a class of periodic preventive maintenance (PM) optimization problems, for a single piece of equipment that deteriorates with time or use, and can… (more)

Singh, Inderjeet,1978-

2011-01-01T23:59:59.000Z

68

The Relationship of Collectors and Periodic Table  

Science Conference Proceedings (OSTI)

... of Chemical Element (IV)—The Relationship of Collectors and Periodic Table of ..... One Dimensional Multiferroic Nanomaterials/Nanocomposites for Solar ...

69

NONPARAMETRIC BAYESIAN ESTIMATION OF PERIODIC LIGHT CURVES  

SciTech Connect

Many astronomical phenomena exhibit patterns that have periodic behavior. An important step when analyzing data from such processes is the problem of identifying the period: estimating the period of a periodic function based on noisy observations made at irregularly spaced time points. This problem is still a difficult challenge despite extensive study in different disciplines. This paper makes several contributions toward solving this problem. First, we present a nonparametric Bayesian model for period finding, based on Gaussian Processes (GPs), that does not make assumptions on the shape of the periodic function. As our experiments demonstrate, the new model leads to significantly better results in period estimation especially when the light curve does not exhibit sinusoidal shape. Second, we develop a new algorithm for parameter optimization for GP which is useful when the likelihood function is very sensitive to the parameters with numerous local minima, as in the case of period estimation. The algorithm combines gradient optimization with grid search and incorporates several mechanisms to overcome the high computational complexity of GP. Third, we develop a novel approach for using domain knowledge, in the form of a probabilistic generative model, and incorporate it into the period estimation algorithm. Experimental results validate our approach showing significant improvement over existing methods.

Wang Yuyang; Khardon, Roni [Department of Computer Science, Tufts University, Medford, MA (United States); Protopapas, Pavlos [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)

2012-09-01T23:59:59.000Z

70

Variable-Period Undulators for Synchrotron Radiation  

DOE Patents (OSTI)

A new and improved undulator design is provided that enables a variable period length for the production of synchrotron radiation from both medium-energy and high energy storage rings. The variable period length is achieved using a staggered array of pole pieces made up of high permeability material, permanent magnet material, or an electromagnetic structure. The pole pieces are separated by a variable width space. The sum of the variable width space and the pole width would therefore define the period of the undulator. Features and advantages of the invention include broad photon energy tunability, constant power operation and constant brilliance operation.

Shenoy, Gopal; Lewellen, John; Shu, Deming; Vinokurov, Nikolai

2005-02-22T23:59:59.000Z

71

A Precipitation Climatology of 5-Day Periods  

Science Conference Proceedings (OSTI)

A precipitation climatology has been developed for the relative frequencies of zero, one, or two or more days with measurable precipitation within 5-day periods. In addition, the distribution of precipitation amounts is given for the one wet day ...

E. S. Epstein; A. G. Barnston

1990-02-01T23:59:59.000Z

72

Coordinated Enhanced Observing Period (CEOP) International Workshop  

Science Conference Proceedings (OSTI)

The Coordinated Enhanced Observing Period (CEOP) International Workshop, sponsored by NOAA Office of Global Programs and NASA Land Surface Hydrology Program, was held on 27 February 1 March 2001 at NASA's Goddard Space Flight Center, Greenbelt, ...

Michael G. Bosilovich; Rick Lawford

2002-10-01T23:59:59.000Z

73

THE ORBITAL PERIOD OF SCORPIUS X-1  

Science Conference Proceedings (OSTI)

The orbital period of Sco X-1 was first identified by Gottlieb et al. While this has been confirmed on multiple occasions, this work, based on nearly a century of photographic data, has remained the reference in defining the system ephemeris ever since. It was, however, called into question when Vanderlinde et al. claimed to find the one-year alias of the historical period in RXTE/All-Sky Monitor data and suggested that this was the true period rather than that of Gottlieb et al. We examine data from the All Sky Automated Survey (ASAS) spanning 2001-2009. We confirm that the period of Gottlieb et al. is in fact the correct one, at least in the optical, with the one-year alias strongly rejected by these data. We also provide a modern time of minimum light based on the ASAS data.

Hynes, Robert I.; Britt, Christopher T., E-mail: rih@phys.lsu.edu [Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Tower Drive, Baton Rouge, LA 70803 (United States)

2012-08-10T23:59:59.000Z

74

Mars Atmosphere Pressure Periodicities from Viking Observations  

Science Conference Proceedings (OSTI)

The first martian year of pressure data taken by the Viking landers on Mars is subjected to power spectrum analysis. The analysis suggests that strong periodicities are present in the martian atmosphere, especially at the high-latitude (48°N) ...

R. D. Sharman; J. A. Ryan

1980-09-01T23:59:59.000Z

75

The periodicity of the eta Carinae events  

E-Print Network (OSTI)

Extensive spectral observations of eta Carinae over the last cycle, and particularly around the 2003.5 low excitation event, have been obtained. The variability of both narrow and broad lines, when combined with data taken from two earlier cycles, reveal a common and well defined period. We have combined the cycle lengths derived from the many lines in the optical spectrum with those from broad-band X-rays, optical and near-infrared observations, and obtained a period length of 2022.7+-1.3 d. Spectroscopic data collected during the last 60 years yield an average period of 2020+-4 d, consistent with the present day period. The period cannot have changed by more than $\\Delta$P/P=0.0007 since 1948. This confirms the previous claims of a true, stable periodicity, and gives strong support to the binary scenario. We have used the disappearance of the narrow component of HeI 6678 to define the epoch of the Cycle 11 minimum, T_0=JD 2,452,819.8. The next event is predicted to occur on 2009 January 11 (+-2 days). The dates for the start of the minimum in other spectral features and broad-bands is very close to this date, and have well determined time delays from the HeI epoch.

A. Damineli; M. F. Corcoran; D. J. Hillier; O. Stahl; R. S. Levenhagen; N. V. Leister; J. H. Groh; M. Teodoro; J. F. Albacete Colombo; F. Gonzalez; J. Arias; H. Levato; M. Grosso; N. Morrell; R. Gamen; G. Wallerstein; V. Niemela

2007-11-27T23:59:59.000Z

76

Property:TimePeriod | Open Energy Information  

Open Energy Info (EERE)

TimePeriod TimePeriod Jump to: navigation, search This is a property of type String. Pages using the property "TimePeriod" Showing 25 pages using this property. (previous 25) (next 25) 0 0.4 kV remote control (Smart Grid Project) + Not available + 2 220 kV SSSC device for power flow control (Smart Grid Project) + Jul 2009 Jul 2014 + A A complete and normalized 61850 substation (Smart Grid Project) + Oct 2009 Dec 2015 + ADELE Project AACAES (Smart Grid Project) + Dec 2009 Dec 2013 + AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) + 2011-2014 + AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Belgium) + 2011-2014 +

77

Super Gabor frames on discrete periodic sets  

Science Conference Proceedings (OSTI)

Due to its potential applications in multiplexing techniques such as time division multiple access and frequency division multiple access, superframe has interested some mathematicians and engineering specialists. In this paper, we investigate super ... Keywords: 42C40, Discrete Zak transform, Discrete periodic sets, Gabor dual, Super Gabor frame, Superframe

Yun-Zhang Li; Qiao-Fang Lian

2013-05-01T23:59:59.000Z

78

Periodic cyclic homology of certain nuclear algebras.  

E-Print Network (OSTI)

Relying of properties of the inductive tensor product, we construct cyclic type homology theories for certain nuclear algebras. In this context we establish continuity theorems. We compute the periodic cyclic homology of the Schwartz algebra of p-adic GL(n) in terms of compactly supported de Rham cohomology of the tempered dual of GL(n).

Jacek Brodzki; Roger Plymen

79

Periodically kicked hard oscillators G. A. Cecchi  

E-Print Network (OSTI)

Periodically kicked hard oscillators G. A. Cecchi Departamento de Fisica, U.N.L.P.,Argentina D. L for publication 25 November 1992) A model of a hard oscillator with analytic solution is presented. Its behavior forcing, and is intrinsic to hard oscillators; it is characterized by discontinuous circle maps

Magnasco, Marcelo Osvaldo

80

Spatiotemporal periodical pattern mining in traffic data  

Science Conference Proceedings (OSTI)

The widespread use of road sensors has generated huge amount of traffic data, which can be mined and put to various different uses. Finding frequent trajectories from the road network of a big city helps in summarizing the way the traffic behaves in ... Keywords: KL-divergence, density-based clustering, periodic patterns, probability distribution matrices, road network, spatiotemporal data, traffic data

Tanvi Jindal, Prasanna Giridhar, Lu-An Tang, Jun Li, Jiawei Han

2013-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Design of periodic beam-transport systems  

SciTech Connect

Periodic beam-transport systems have several advantages including insensitivity to errors, minimum magnet apertures, and use of standardized components. A simple procedure is given for the design of modules, with and without bending magnets, that have the same matched beam properties. These modules can be combined in certain ways to produce systems that are achromatic and require a minimum number of matching elements.

Farrell, J.A.

1983-01-01T23:59:59.000Z

82

Periodic register saturation in innermost loops  

Science Conference Proceedings (OSTI)

This article treats register constraints in high performance codes and embedded VLIW computing, aiming to decouple register constraints from instruction scheduling. It extends the register saturation (RS) concept to periodic instruction schedules, i.e., ... Keywords: Code analysis, Code optimisation, Cyclic register allocation, Instruction level parallelism, Register saturation, Software pipelining

Sid-Ahmed-Ali Touati; Zsolt Mathe

2009-04-01T23:59:59.000Z

83

Five Intermediate-Period Planets from the N2K Sample  

E-Print Network (OSTI)

We report the detection of five Jovian mass planets orbiting high metallicity stars. Four of these stars were first observed as part of the N2K program and exhibited low RMS velocity scatter after three consecutive observations. However, follow-up observations over the last three years now reveal the presence of longer period planets with orbital periods ranging from 21 days to a few years. HD 11506 is a G0V star with a planet of \\msini = 4.74 \\mjup in a 3.85 year orbit. HD 17156 is a G0V star with a 3.12 \\mjup planet in a 21.2 day orbit. The eccentricity of this orbit is 0.67, one of the highest known for a planet with a relatively short period. The orbital period for this planet places it in a region of parameter space where relatively few planets have been detected. HD 125612 is a G3V star with a planet of \\msini = 3.5 \\mjup in a 1.4 year orbit. HD 170469 is a G5IV star with a planet of \\msini = 0.67 \\mjup in a 3.13 year orbit. HD 231701 is an F8V star with planet of 1.08 \\mjup in a 142 day orbit. All of these stars have supersolar metallicity. Three of the five stars were observed photometrically but showed no evidence of brightness variability. A transit search conducted for HD 17156 was negative but covered only 25% of the search space and so is not conclusive.

Debra A. Fischer; Steven S. Vogt; Geoffrey W. Marcy; R. Paul Butler; Bun'ei Sato; Gregory W. Henry; Sarah Robinson; Gregory Laughlin; Shigeru Ida; Eri Toyota; Masashi Omiya; Peter Driscoll; Genya Takeda; Jason T. Wright; John A. Johnson

2007-04-10T23:59:59.000Z

84

Environmental Energy Technologies Division News  

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

dioxide (CO2) emissions, nitrogen oxide treatment costs, SGIP, fuel cell lifetime, fuel cell efficiency, photovoltaic installation costs, and payback periods. Pie chart of the...

85

The Adoption of Residential Solar Photovoltaic Systems in the Presence of a Financial Incentive: A Case Study of Consumer Experiences with the Renewable Energy Standard Offer Program in Ontario (Canada).  

E-Print Network (OSTI)

??Traditionally, high initial capital costs and lengthy payback periods have been identified as the most significant barriers that limit the diffusion of solar photovoltaic (PV)… (more)

Adachi, Christopher

2009-01-01T23:59:59.000Z

86

TY JOUR T1 Implementation and Rejection of Industrial Steam System...  

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

recommended steam system energy efficiency measures Based on analyses implementation of steam system energy efficiency measures is driven primarily by cost metrics payback period...

87

Efficiency Measures  

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

recommended steam system energy efficiency measures Based on analyses implementation of steam system energy efficiency measures is driven primarily by cost metrics payback period...

88

Energy Conservation Tax Credits - Competitively-Selected Projects...  

Open Energy Info (EERE)

Energy Incentive Programs Amount Varies by project Equipment Requirements First year energy savings must yield a simple payback period of greater than 3 years. Start Date 2011...

89

Projection-based partial periodic pattern mining for event sequences  

Science Conference Proceedings (OSTI)

Partial periodic pattern mining is one of the important issues in the field of data mining due to its practical applications. A partial periodic pattern consists of some periodic and non-periodic events in a specific period length, and is repeated with ... Keywords: Data mining, Encoding, Partial periodic pattern, Projection, Sequential pattern

Kung-Jiuan Yang; Tzung-Pei Hong; Yuh-Min Chen; Guo-Cheng Lan

2013-08-01T23:59:59.000Z

90

Property:Maximum Wave Height(m) at Wave Period(s) | Open Energy Information  

Open Energy Info (EERE)

Wave Height(m) at Wave Period(s) Wave Height(m) at Wave Period(s) Jump to: navigation, search Property Name Maximum Wave Height(m) at Wave Period(s) Property Type String Pages using the property "Maximum Wave Height(m) at Wave Period(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 10.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 0.0 + Alden Wave Basin + 1.0 + C Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 + Coastal Inlet Model Facility + 2.3 + D Davidson Laboratory Tow Tank + 4.0 + DeFrees Large Wave Basin + 3.0 + DeFrees Small Wave Basin + 3.0 +

91

Shock Dynamics in Layered Periodic Media  

E-Print Network (OSTI)

Solutions of constant-coefficient nonlinear hyperbolic PDEs generically develop shocks, even if the initial data is smooth. Solutions of hyperbolic PDEs with variable coefficients can behave very differently. We investigate formation and stability of shock waves in a one-dimensional periodic layered medium by computational study of time-reversibility and entropy evolution. We find that periodic layered media tend to inhibit shock formation. For small initial conditions and large impedance variation, no shock formation is detected even after times much greater than the time of shock formation in a homogeneous medium. Furthermore, weak shocks are observed to be dynamically unstable in the sense that they do not lead to significant long-term entropy decay. We propose a characteristic condition for admissibility of shocks in heterogeneous media that generalizes the classical Lax entropy condition and accurately predicts the formation or absence of shocks in these media.

David I Ketcheson; Randall J. LeVeque

2011-05-14T23:59:59.000Z

92

Embedding a chaotic signature in a periodic train: can periodic signals be chaotic?  

E-Print Network (OSTI)

We show how a chaotic system can be locked to emit a periodic waveform belonging to its chaotic attractor. We numerically demonstrate our idea in a system composed of a semiconductor laser driven to chaos by optical feedback from a short external cavity. The clue is the injection of an appropriate periodic signal that modulates the phase and amplitude of the intra-cavity radiation, a chaotic analogy of conventional mode-locking. The result is a time process that manifests a chaotic signature embedded in a long-scale periodic train.

Antonio Mecozzi; Cristian Antonelli

2008-11-03T23:59:59.000Z

93

Macroscopic quantum behaviour of periodic quantum systems  

E-Print Network (OSTI)

In this paper we introduce a simple procedure for computing the macroscopic quantum behaviour of periodic quantum systems in the high energy regime. The macroscopic quantum coherence is ascribed to a one-particle state, not to a condensate of a many-particle system; and we are referring to a system of high energy but with few degrees of freedom. We show that, in the first order of approximation, the quantum probability distributions converge to its classical counterparts in a clear fashion, and that the interference effects are strongly suppressed. The harmonic oscillator provides a testing ground for these ideas and yields excellent results.

A. Martín-Ruiz; J. Bernal; Adrián Carbajal-Domínguez

2013-09-02T23:59:59.000Z

94

Correlated magnetic reversal in periodic stripe patterns  

Science Conference Proceedings (OSTI)

The magnetization reversal in a periodic magnetic stripe array has been studied with a combination of direct and reciprocal space methods: Kerr microscopy and polarized neutron scattering. Kerr images show that during magnetization reversal over a considerable magnetic-field range a ripple domain state occurs in the stripes with magnetization components perpendicular to the stripes. Quantitative analysis of polarized neutron specular reflection, Bragg diffraction, and off-specular diffuse scattering provides a detailed picture of the mean magnetization direction in the ripple domains as well as longitudinal and transverse fluctuations, and reveals a strong correlation of those components over a number of stripes.

Theis-Broehl, Katharina; Toperverg, Boris P.; Leiner, Vincent; Westphalen, Andreas; Zabel, Hartmut; McCord, Jeffrey; Rott, Karsten; Brueckl, Hubert [Department of Physics, Ruhr-University Bochum, 44780 Bochum (Germany); Leibniz Institute for Solid State and Materials Research Dresden, Institute for Metallic Materials, Helmholtzstr. 20, D-01169 Dresden (Germany); Department of Physics, University Bielefeld, Universitaetsstr. 25, 33615 Bielefeld (Germany)

2005-01-01T23:59:59.000Z

95

Down-hole periodic seismic generator  

DOE Patents (OSTI)

A down hole periodic seismic generator system is disclosed for transmitting variable frequency, predominantly shear-wave vibration into earth strata surrounding a borehole. The system comprises a unitary housing operably connected to a well head by support and electrical cabling and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a variable speed pneumatic oscillator and a self-contained pneumatic reservoir for producing a frequency-swept seismic output over a discrete frequency range.

Hardee, H.C.; Hills, R.G.; Striker, R.P.

1982-10-28T23:59:59.000Z

96

MR LLRF VXI upgrade beam study period  

Science Conference Proceedings (OSTI)

AD/RFI/LLRF group personnel performed several studies with the MR LLRF VXI upgrade system during the evening of 7/29/95. The study period lasted about 4 hours. The MR operating conditions were a mixture of $29 and $2B cycles, with beam injected only on the $29. The author believes the $2B cycles were present for reasons unrelated to the study. The basic study period goal was to test the initial VXI version of MR LLRF finite state machine (FSM) execution. This goal represents what has been called MR LLRF VXI Upgrade Implementation Stage No.2 throughout presentations and documentation on the upgrade project. The test includes control of MR LLRF NIM hardware, the MR RF cavities, and beam via XVI TTL FSM outputs. Numerous MR LLRF VXI system objects, or components, must work together correctly for a successful test. Very briefly, the required objects include VXI Front End hardware, the ACNET/Front End interface code, and the VXI/NIM Interface chassis (the chassis solves VXI-CAMAC-NIM RF and FSM output connectivity and development problems). Though this initial FSM does not yet fully support Upgrade Implementation Stage 2 functionality, all code and hardware for the following basic functionality is tested.

Mesiner, K.; /Fermilab

1995-01-01T23:59:59.000Z

97

Jordan cells of periodic loop models  

E-Print Network (OSTI)

Jordan cells in transfer matrices of finite lattice models are a signature of the logarithmic character of the conformal field theories that appear in their thermodynamical limit. The transfer matrix of periodic loop models, T_N, is an element of the periodic Temperley-Lieb algebra EPTL_N(\\beta, \\alpha), where N is the number of sites on a section of the cylinder, and \\beta = -(q+1/q) = 2 \\cos \\lambda and \\alpha the weights of contractible and non-contractible loops. The thermodynamic limit of T_N is believed to describe a conformal field theory of central charge c=1-6\\lambda^2/(\\pi(\\lambda-\\pi)). The abstract element T_N acts naturally on (a sum of) spaces V_N^d, similar to those upon which the standard modules of the (classical) Temperley-Lieb algebra act. These spaces known as sectors are labeled by the numbers of defects d and depend on a {\\em twist parameter} v that keeps track of the winding of defects around the cylinder. Criteria are given for non-trivial Jordan cells of T_N both between sectors with distinct defect numbers and within a given sector.

Alexi Morin-Duchesne; Yvan Saint-Aubin

2013-02-22T23:59:59.000Z

98

Energy Conservation Recommendations, Implementation Costs, and Projected Paybacks for Georgia's Targeted Schools and Hospitals Conservation Program  

E-Print Network (OSTI)

During the past year the Georgia Tech Research Institute performed technical assistance studies on over 100 school and hospital buildings under a program funded by the Governor's Office of Energy Resources. This program is known as the Targeted Schools and Hospitals Program because its objective is to involve facilities which have never participated in the traditional DOE funded Institutional Conservation Program (ICP) due to economic hardships. The program was specifically directed at non-participants by providing fully funded energy surveys on qualifying facilities. The energy surveys were conducted by the Georgia Tech Research Institute under contract with the Office of Energy Resources. This paper presents results on the range of energy conservation recommendations made and the number of occurrences in the total population as well as the typical percentage energy savings. This data can be used in forecasting the expected types of recommendations and energy reduction potential for a large population of institutional buildings.

Brown, M. L.; Moore, D. M.

1988-01-01T23:59:59.000Z

99

PV FAQs: What Is the Energy Payback for PV? Solar Energy Technologies...  

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

energy is clean, abundant, reliable, and affordable Reaping the environmental benefits of solar energy requires spending energy to make the PV system. But as this graphic shows,...

100

Water restrictors yield high energy savings: users report paybacks under 6 months  

SciTech Connect

Flow restrictors can save heating and pumping energy costs as well as saving water costs by reducing consumption. Installed on shower heads, flow restrictors can pay for themselves in six months. The device can also be applied to faucets or in water-supply feed lines, but the savings will be less. Several model designs are on the market at a wide range of prices. The Radisson Hotel, Days Inn, and other chains report their experiences and savings. (DCK)

Fleming, J.

1982-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Hotel gets 9-month payback on HVAC project. [Midtown Holiday Inn, Richmond, VA  

SciTech Connect

The Midtown Holiday Inn at Richmond, Virginia, recovered its $45,200 investment in heating and cooling modifications in nine months by reducing energy consumption by 43%. Natural gas use was reduced 48% and electricity 25%, while comfort levels were improved. The retrofit involved replacing the old three-pipe design, which traditionally returns both heating and cooling water and is inefficient during fall and spring when both hot and chill water are needed. A new control strategy keeps the chiller and boiler from working simultaneously by alternating the two on 15-minute cycles. The chiller automatically cuts off when outside air goes below 55/sup 0/F, while the boiler shuts off at 75/sup 0/F. (DCK)

Deans, B.

1982-10-11T23:59:59.000Z

102

Department of Energy Announces Plans for Additional Comment Period...  

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

Announces Plans for Additional Comment Period on National Interest Electric Transmission Corridors Department of Energy Announces Plans for Additional Comment Period on National...

103

EA-1566: Notice of Comment Period Extension | Department of Energy  

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

EA-1566: Notice of Comment Period Extension Proposed Infrastructure Improvements for the Yucca Mountain Project, Nevada DOE is extending the public comment period for the Yucca...

104

DOE Extends Public Comment Period for Uranium Program Environmental...  

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

Other Agencies You are here Home DOE Extends Public Comment Period for Uranium Program Environmental Impact Statement DOE Extends Public Comment Period for Uranium...

105

EIS-0403: Notice to Extend Public Comment Period | Department...  

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

Notice to Extend Public Comment Period EIS-0403: Notice to Extend Public Comment Period Solar Energy Development in Six Southwestern States The Department of Energy and the Bureau...

106

Mo Year Report Period: EIA ID NUMBER:  

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

Version No: 2013.01 Mo Year Report Period: EIA ID NUMBER: http://www.eia.gov/survey/form/eia_14/instructions.pdf Mailing Address: Secure File Transfer option available at: (e.g., PO Box, RR) https://signon.eia.doe.gov/upload/noticeoog.jsp Electronic Transmission: The PC Electronic Zip Code - Data Reporting Option (PEDRO) is available. If interested in software, call (202) 586-9659. Email form to: OOG.SURVEYS@eia.doe.gov - - - - Fax form to: (202) 586-9772 Mail form to: Oil & Gas Survey Email address: U.S. Department of Energy Ben Franklin Station PO Box 279 Washington, DC 20044-0279 Questions? Call toll free: 1-800-638-8812 PADD 4 Type of Report (Check One ): (Thousands of dollars) (Thousands of barrels) PADD 2 PADD 3 PAD DISTRICT (a) Revision to Report:

107

Performance Period Total Fee Paid FY2001  

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

01 01 $4,547,400 FY2002 $4,871,000 FY2003 $6,177,902 FY2004 $8,743,007 FY2005 $13,134,189 FY2006 $7,489,704 FY2007 $9,090,924 FY2008 $10,045,072 FY2009 $12,504,247 FY2010 $17,590,414 FY2011 $17,558,710 FY2012 $14,528,770 Cumulative Fee Paid $126,281,339 Cost Plus Award Fee DE-AC29-01AL66444 Washington TRU Solutions LLC Contractor: Contract Number: Contract Type: $8,743,007 Contract Period: $1,813,482,000 Fee Information Maximum Fee $131,691,744 Total Estimated Contract Cost: $4,547,400 $4,871,000 $6,177,902 October 2000 - September 2012 Minimum Fee $0 Fee Available EM Contractor Fee Site: Carlsbad Field Office - Carlsbad, NM Contract Name: Waste Isolation Pilot Plant Operations March 2013 $13,196,690 $9,262,042 $10,064,940 $14,828,770 $12,348,558 $12,204,247 $17,590,414 $17,856,774

108

An Alternate Graphical Representation of Periodic table of Chemical Elements  

E-Print Network (OSTI)

Periodic table of chemical elements symbolizes an elegant graphical representation of symmetry at atomic level and provides an overview on arrangement of electrons. It started merely as tabular representation of chemical elements, later got strengthened with quantum mechanical description of atomic structure and recent studies have revealed that periodic table can be formulated using SO(4,2)* SU(2) group. IUPAC, the governing body in Chemistry, doesn't approve any periodic table as a standard periodic table. The only specific recommendation provided by IUPAC is that the periodic table should follow the 1 to 18 group numbering. In this technical paper, we describe a new graphical representation of periodic table, referred as 'Circular form of Periodic table'. The advantages of circular form of periodic table over other representations are discussed along with a brief discussion on history of periodic tables.

Mohd Abubakr

2009-10-01T23:59:59.000Z

109

EIS-0403: Public Comment Period Extension | Department of Energy  

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

403: Public Comment Period Extension 403: Public Comment Period Extension EIS-0403: Public Comment Period Extension Solar Energy Development in Six Southwestern States The Bureau of Land Management (BLM) announced a two-week extension of the public comment period for the Draft Solar Programmatic Environmental Impact Statement (Draft Solar PEIS), a joint effort with the Department of Energy. The agencies had previously provided for a 120-day public comment period on the Draft Solar PEIS. Because of numerous requests, the agencies extended the comment period by an additional two weeks beyond April 16, 2011. The comment period ran (with extension) until May 2, 2011. EIS-0403-DEIS_Second_Comment_Extension-2011.pdf More Documents & Publications EIS-0403: Notice to Extend Public Comment Period

110

Femtosecond second-harmonic generation in periodically poled lithium niobate  

E-Print Network (OSTI)

Femtosecond second-harmonic generation in periodically poled lithium niobate waveguides poled lithium niobate waveguides under large conversion conditions. Strong saturation of the SHG detailed experi- mental data on femtosecond SHG in periodically poled lithium niobate (PPLN) waveguides

Purdue University

111

PARS II Process Document - DOE Period Close | Department of Energy  

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

DOE Period Close PARS II Process Document - DOE Period Close This document details the process adopted by the Office of Acquisition and Project Management to prepare APM DepSec...

112

Microsoft Word - PARS II Process Document - Close Period 2013...  

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

PARS II APM DepSec Monthly Report & Close Period, V-2013-04-29 Page 1 PARS II Process Document APM DEPSEC MONTHLY REPORT & CLOSE PERIOD PURPOSE The purpose of this document is to...

113

Periodic Materials and Interference Lithography for Photonics ... - TMS  

Science Conference Proceedings (OSTI)

02/28/2011 - Periodic Materials and Interference Lithography for Photonics, ... photonic crystals (electromagnetic wave propagation) and phononic crystals ...

114

On periodic wave functions of Schrödinger operators on Cayley trees  

E-Print Network (OSTI)

In the paper we define periodic wave functions for a (discrete) Schr\\"odinger operator on a Cayley tree. This periodicity depends on a subgroup of a group representation of the Cayley tree. For any subgroup of finite index we give a criterion for eigenvalues of the Schr\\"odinger operator under which there are periodic wave functions. For a normal subgroup of infinite index we describe a class of periodic wave functions.

Fumio Hiroshima; Utkir Rozikov

2013-04-11T23:59:59.000Z

115

Periodic solution of single population models on time scales  

Science Conference Proceedings (OSTI)

By using the calculus on time scales, we study and establish criterion for the existence of periodic solutions of some scalar dynamical equations on time scales. The existence of periodic solutions for some concrete well-known single population models ... Keywords: Coincidence degree theory, Logistic equations, Periodic solutions, Time scales

Jimin Zhang; Meng Fan; Huaiping Zhu

2010-08-01T23:59:59.000Z

116

Short period eclipsing binary candidates identified using SuperWASP  

E-Print Network (OSTI)

We present light curves and periods of 53 candidates for short period eclipsing binary stars identified by SuperWASP. These include 48 newly identified objects with periods <2x10^4 seconds (~0.23d), as well as the shortest period binary known with main sequence components (GSC2314-0530 = 1SWASP J022050.85+332047.6) and four other previously known W UMa stars (although the previously reported periods for two of these four are shown to be incorrect). The period distribution of main sequence contact binaries shows a sharp cut-off at a lower limit of around 0.22d, but until now, very few systems were known close to this limit. These new candidates will therefore be important for understanding the evolution of low mass stars and to allow investigation of the cause of the period cut-off.

Norton, A J; Evans, T; West, R G; Wheatley, P J; Anderson, D R; Barros, S C C; Butters, O W; Cameron, A Collier; Christian, D J; Enoch, B; Faedi, F; Haswell, C A; Hellier, C; Holmes, S; Horne, K D; Lister, T A; Maxted, P F L; Parley, N; Pollacco, D; Simpson, E K; Skillen, I; Smalley, B; Southworth, J; Street, R A

2011-01-01T23:59:59.000Z

117

EIS-0463: Extension of Scoping Period | Department of Energy  

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

Extension of Scoping Period Extension of Scoping Period EIS-0463: Extension of Scoping Period Presidential Permit Application for Northern Pass Transmission, New Hampshire The U.S. Department of Energy (DOE) is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS) (DOE/EIS-0463). In anticipation of additional alternative route information being provided by Northern Pass, DOE is reopening the scoping period. DOE will determine the close of the scoping period once the additional routing information is received from Northern Pass, and DOE will provide at least 45 days for public review and scoping comments on any such routing information. EIS-0463-ScopingExtension-2011.pdf More Documents & Publications Application for presidential permit OE Docket No. PP-371 Northern Pass

118

EIS-0463: Reopening of Scoping Period for the Environmental Impact  

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

Reopening of Scoping Period for the Environmental Impact Reopening of Scoping Period for the Environmental Impact Statement EIS-0463: Reopening of Scoping Period for the Environmental Impact Statement Northern Pass Transmission Line Project The U.S. Department of Energy (DOE) is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS) (DOE/EIS-0463). The scoping period now ends on June 14, 2011. Reopening of Scoping Period for the Northern Pass Transmission Line Project Environmental Impact Statement, EIS-0463 (April 2011) (76 FR 21338) More Documents & Publications EIS-0385: EPA Notice of Availability of the Final Environmental Impact Statement EIS-0425: EPA Notice of Availability of Draft Environmental Impact Statement EIS-0448: Notice of Adoption of an Environmental Impact Statement

119

EIS-0463: Reopening of Scoping Period for the Environmental Impact  

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

463: Reopening of Scoping Period for the Environmental Impact 463: Reopening of Scoping Period for the Environmental Impact Statement EIS-0463: Reopening of Scoping Period for the Environmental Impact Statement Northern Pass Transmission Line Project The U.S. Department of Energy (DOE) is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS) (DOE/EIS-0463). The scoping period now ends on June 14, 2011. Reopening of Scoping Period for the Northern Pass Transmission Line Project Environmental Impact Statement, EIS-0463 (April 2011) (76 FR 21338) More Documents & Publications EIS-0385: EPA Notice of Availability of the Final Environmental Impact Statement EIS-0408: DOE Notice of Availability of a Programmatic Draft Environmental Impact Statement EIS-0469: Notice of Intent To Prepare an Environmental Impact Statement and

120

DOE Extends Public Comment Period for the Draft Uranium Leasing...  

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

Other Agencies You are here Home DOE Extends Public Comment Period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement DOE Extends Public...

Note: This page contains sample records for the topic "4-year payback period" 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

Uranium Leasing Program Draft PEIS Public Comment Period Extended...  

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

Centers Field Sites Power Marketing Administration Other Agencies You are here Home Uranium Leasing Program Draft PEIS Public Comment Period Extended to May 31, 2013 Uranium...

122

Green's function analysis of periodic structures in computational electromagnetics  

E-Print Network (OSTI)

the two-dimensional periodic Green's function," IEEE Trans.evaluation of the Green's function for the Helmholtzrepresentations of certain Green's functions," J. Comp.

Van Orden, Derek

2011-01-01T23:59:59.000Z

123

EIS-0369: Notice of Public Comment Period Extension and Additional...  

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

Comment Period Extension and Additional Public Meeting Supplemental Yucca Mountain Rail Corridor and Rail Alignment The Department of Energy is now announcing an additional...

124

EIS-0489: Notice of Comment Period Extension and Additional Scoping...  

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

Meetings EIS-0489: Notice of Comment Period Extension and Additional Scoping Meetings Jordan Cove Liquefaction Project (Coos County, OR) and Pacific Connector Pipeline Project...

125

Multilevel interference lithography--fabricating sub-wavelength periodic nanostructures  

E-Print Network (OSTI)

Periodic nanostructures have many exciting applications, including high-energy spectroscopy, patterned magnetic media, photonic crystals, and templates for self-assembly. Interference lithography (IL) is an attractive ...

Chang, Chih-Hao, 1980-

2008-01-01T23:59:59.000Z

126

Stochastic Resonance in a Periodically Modulated Dissipative Nuclear Dynamics  

E-Print Network (OSTI)

A fission decay of highly excited periodically driven compound nuclei is considered in the framework of Langevin approach. We have used residual-time distribution (RTD) as the tool for studying of dynamic features in a presence of periodic perturbation. The structure of RTD essentially depends on the relation between Kramers decay rate and the frequency of the periodic perturbation. In particular, intensity of the first peak in RTD has a sharp maximum at certain nuclear temperature depending on the frequency of the periodic perturbation. This maximum should be considered as first-hand manifestation of stochastic resonance in nuclear dynamics.

V. P. Berezovoj; Yu. L. Bolotin; O. P. Dzyubak; V. V. Yanovsky; A. V. Zhiglo

2001-01-22T23:59:59.000Z

127

Greece in the Late Roman Period in its Mediterranean context.  

E-Print Network (OSTI)

??This thesis is on Greece in Late Antiquity. There is much attention for Roman Greece, but mostly, this attention goes to the periods of the… (more)

Kleef, Marloes van

2012-01-01T23:59:59.000Z

128

How deep in molecular space can periodicity be found?  

Science Conference Proceedings (OSTI)

We find occasional echoes of periodicity, i.e. the trends found in the chart of the elements, in several-atom (up to 32) molecules and use it to make forecasts for molecular data, some of which have been confirmed. Keywords: binary compounds, data mining, halogenated organic compounds, molecular periodicity

Ken Luk; Ray Hefferlin; Gabriel Johnson

2005-07-01T23:59:59.000Z

129

Periodic surface modeling for computer aided nano design  

Science Conference Proceedings (OSTI)

Current solid and surface modeling methods based on Euclidean geometry in traditional computer aided design are not efficient in constructing a large number of atoms and particles. In this paper, we propose a periodic surface model for computer aided ... Keywords: Computer aided nano design, Hyperbolic geometry, Minimal surface, Periodic surface

Yan Wang

2007-03-01T23:59:59.000Z

130

Optimal Multi-Period Pricing with Service Guarantees Christian Borgs  

E-Print Network (OSTI)

Optimal Multi-Period Pricing with Service Guarantees Christian Borgs Ozan Candogan Jennifer Chayes Ilan Lobel§ Hamid Nazerzadeh July 19, 2011 Abstract We consider the multi-period pricing problem. The firm's objective is to set a sequence of prices that maximizes its revenue while guaranteeing service

Chayes, Jennifer Tour

131

Mechanical filtering characteristics of passive periodic engine mount  

Science Conference Proceedings (OSTI)

The transmission of automotive engine vibrations to the chassis is isolated using a new class of mounts which rely in their operation on optimally designed and periodically distributed viscoelastic inserts. The proposed mount acts as a mechanical filter ... Keywords: Experimental validation, Finite element analysis, Periodic engine mount, Transfer matrix approach

Woojin Jung; Zheng Gu; A. Baz

2010-09-01T23:59:59.000Z

132

Quantum coherent switch utilizing commensurate nanoelectrode and charge density periodicities  

DOE Patents (OSTI)

A quantum coherent switch having a substrate formed from a density wave (DW) material capable of having a periodic electron density modulation or spin density modulation, a dielectric layer formed onto a surface of the substrate that is orthogonal to an intrinsic wave vector of the DW material; and structure for applying an external spatially periodic electrostatic potential over the dielectric layer.

Harrison, Neil (Santa Fe, NM); Singleton, John (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

2008-08-05T23:59:59.000Z

133

Extension of Comment Period on Improving Performance of Federal Permitting  

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

Extension of Comment Period on Improving Performance of Federal Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 On August 29, 2013, the U.S. Department of Energy (DOE) published a Request for Information seeking information on a draft Integrated, Interagency Pre-Application (IIP) Process for significant onshore electric transmission projects requiring Federal authorizations. This notice announces an extension of the public comment period for submitting comments regarding the IIP Process to October 31, 2013. Extension of Comment Period on Improving Performance of Federal Permitting

134

Extension of Comment Period on Improving Performance of Federal Permitting  

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

Extension of Comment Period on Improving Performance of Federal Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 Extension of Comment Period on Improving Performance of Federal Permitting and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 On August 29, 2013, the U.S. Department of Energy (DOE) published a Request for Information seeking information on a draft Integrated, Interagency Pre-Application (IIP) Process for significant onshore electric transmission projects requiring Federal authorizations. This notice announces an extension of the public comment period for submitting comments regarding the IIP Process to October 31, 2013. Extension of Comment Period on Improving Performance of Federal Permitting

135

EIS-0431: Extension of Public Comment Period | Department of Energy  

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

31: Extension of Public Comment Period 31: Extension of Public Comment Period EIS-0431: Extension of Public Comment Period Hydrogen Energy California's Integrated Gasification Combined Cycle and Carbon Capture and Sequestration Project, CA The U.S. Department of Energy (DOE) published a notice of availability on July 22, 2013 (78 FR 43870) that provided for a comment period ending September 3, 2013. DOE is extending the public comment period to October 1, 2013, and announces public hearings for the Hydrogen Energy California's Integrated Gasification Combined Cycle Project Preliminary Staff Assessment/Draft Environmental Impact Statement (PSA/DEIS; DOE/EIS--0431D; 78 FR 52764). The PSA/DEIS is available on the internet at http://www.energy.gov/nepa/downloads/eis-0431-draft-environmental-impact-statement

136

EIS-0431: Extension of Public Comment Period | Department of Energy  

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

Public Comment Period Public Comment Period EIS-0431: Extension of Public Comment Period Hydrogen Energy California's Integrated Gasification Combined Cycle and Carbon Capture and Sequestration Project, CA The U.S. Department of Energy (DOE) published a notice of availability on July 22, 2013 (78 FR 43870) that provided for a comment period ending September 3, 2013. DOE is extending the public comment period to October 1, 2013, and announces public hearings for the Hydrogen Energy California's Integrated Gasification Combined Cycle Project Preliminary Staff Assessment/Draft Environmental Impact Statement (PSA/DEIS; DOE/EIS--0431D; 78 FR 52764). The PSA/DEIS is available on the internet at http://www.energy.gov/nepa/downloads/eis-0431-draft-environmental-impact-statement or on the CEC electronic docket site at

137

Department of Energy Extends Public Comment Period | Department of Energy  

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

Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period September 29, 2011 - 12:00pm Addthis Media Contacts Darwin J. Morgan morgan@nv.doe.gov 702-295-3521 Kelly K. Snyder snyderk@nv.doe.gov 702-295-3521 In response to public comments and requests, the U.S. Department of Energy National Nuclear Security Administration Nevada Site Office is extending the public comment period for the Draft Site-Wide Environmental Impact Statement (SWEIS) for the Nevada National Security Site (NNSS) and Off-Site Locations in Nevada. The formal comment period will close on December 2, 2011, rather than October 27. Within the draft SWEIS, the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office presents a formal analysis of

138

Department of Energy Extends Public Comment Period | Department of Energy  

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

Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period Department of Energy Extends Public Comment Period September 29, 2011 - 12:00pm Addthis Media Contacts Darwin J. Morgan morgan@nv.doe.gov 702-295-3521 Kelly K. Snyder snyderk@nv.doe.gov 702-295-3521 In response to public comments and requests, the U.S. Department of Energy National Nuclear Security Administration Nevada Site Office is extending the public comment period for the Draft Site-Wide Environmental Impact Statement (SWEIS) for the Nevada National Security Site (NNSS) and Off-Site Locations in Nevada. The formal comment period will close on December 2, 2011, rather than October 27. Within the draft SWEIS, the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office presents a formal analysis of

139

Physical Model Explaining the Periodic Pattern of the Chemical Elements  

E-Print Network (OSTI)

The fundamental organizing principle resulting in the periodic table is the nuclear charge. Arranging the chemical elements in an increasing atomic number order, a symmetry pattern known as the Periodic Table is detectable. The correlation between nuclear charge and the Periodic System of the Chemical Elements (PSCE) indicates that the symmetry emerges from the nucleus. Nuclear symmetry can only be developed if the positions of the nucleons are preserved. Thus the phase of the nucleus must be solid where the positions of the nucleons are preserved in a lattice. A lattice model, representing the protons and the neutrons by equal spheres and arranging them alternately in a face centered cubic structure forming a double tetrahedron, is able to reproduce all of the properties of the nucleus including the quantum numbers and the periodicity of the elements. Using this nuclear structure model, an attempt is made here to give a physical explanation for the periodicity of the chemical elements.

Jozsef Garai

2011-01-24T23:59:59.000Z

140

Stochastic resonance in a periodically modulated dissipative nuclear dynamics  

SciTech Connect

A fission decay of highly excited periodically driven compound nuclei is considered in the framework of Langevin approach. The authors have used residual-time distribution (RTD) as the tool for studying of dynamic features in a presence of periodic perturbation. The structure of RTD essentially depends on the relation between Kramers decay rate and the frequency {omega} of the periodic perturbation. In particular, intensity of the first peak in RTD has a sharp maximum at certain nuclear temperature depending on {omega}. This maximum should be considered as first-hand manifestation of stochastic resonance in nuclear dynamics.

Berezovoy, V.P. [and others

2001-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Stochastic Resonance in a Periodically Modulated Dissipative Nuclear Dynamics  

E-Print Network (OSTI)

A fission decay of highly excited periodically driven compound nuclei is considered in the framework of Langevin approach. We have used residual-time distribution (RTD) as the tool for studying of dynamic features in a presence of periodic perturbation. The structure of RTD essentially depends on the relation between Kramers decay rate and the frequency ? of the periodic perturbation. In particular, intensity of the first peak in RTD has a sharp maximum at certain nuclear temperature depending on ?. This maximum should be considered as first-hand manifestation of stochastic resonance in nuclear dynamics. 1

unknown authors

2008-01-01T23:59:59.000Z

142

Property:Building/StartPeriod | Open Energy Information  

Open Energy Info (EERE)

StartPeriod StartPeriod Jump to: navigation, search This is a property of type Date. Start of the period (first day o the month) Pages using the property "Building/StartPeriod" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1 January 2004 + Sweden Building 05K0002 + 1 January 2004 + Sweden Building 05K0003 + 1 January 2004 + Sweden Building 05K0004 + 1 January 2004 + Sweden Building 05K0005 + 1 October 2004 + Sweden Building 05K0006 + 1 October 2004 + Sweden Building 05K0007 + 1 October 2004 + Sweden Building 05K0008 + 1 October 2004 + Sweden Building 05K0009 + 1 October 2004 + Sweden Building 05K0010 + 1 October 2004 + Sweden Building 05K0011 + 1 October 2004 + Sweden Building 05K0012 + 1 January 2004 + Sweden Building 05K0013 + 1 October 2004 +

143

DOE Media Advisory - DOE extends public comment period on Draft  

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

Media Advisory - DOE extends public comment period on Draft Media Advisory - DOE extends public comment period on Draft Environmental Assessment for Replacement Capability for Disposal of Remote-Handled Low-Level Radioactive Waste Generated at the U.S. Department of Energy's Idaho Site DOE Media Advisory - DOE extends public comment period on Draft Environmental Assessment for Replacement Capability for Disposal of Remote-Handled Low-Level Radioactive Waste Generated at the U.S. Department of Energy's Idaho Site October 13, 2011 - 12:00pm Addthis Media Contact Tim Jackson 208-526-8484 In response to requests from people interested in National Environmental Policy Act activities occurring at the U.S. Department of Energy's Idaho Operations Office, the department has extended the public comment period that began September 1 on the Draft Environmental Assessment for

144

Property:Building/EndPeriod | Open Energy Information  

Open Energy Info (EERE)

EndPeriod EndPeriod Jump to: navigation, search This is a property of type Date. End of the period (last day of the month) Pages using the property "Building/EndPeriod" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1 December 2004 + Sweden Building 05K0002 + 1 December 2004 + Sweden Building 05K0003 + 1 December 2004 + Sweden Building 05K0004 + 1 December 2004 + Sweden Building 05K0005 + 1 September 2005 + Sweden Building 05K0006 + 1 September 2005 + Sweden Building 05K0007 + 1 September 2005 + Sweden Building 05K0008 + 1 September 2005 + Sweden Building 05K0009 + 1 September 2005 + Sweden Building 05K0010 + 1 September 2005 + Sweden Building 05K0011 + 1 September 2005 + Sweden Building 05K0012 + 1 December 2004 +

145

Extension of Comment Period on the Draft Integrated, Interagency  

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

Extension of Comment Period on the Draft Integrated, Interagency Extension of Comment Period on the Draft Integrated, Interagency Pre-Application (IIP) Process for Electric Transmission Projects Requiring Federal Authorizations Extension of Comment Period on the Draft Integrated, Interagency Pre-Application (IIP) Process for Electric Transmission Projects Requiring Federal Authorizations September 25, 2013 - 4:24pm Addthis On August 29, 2013, the U.S. Department of Energy (DOE) published a Request for Information seeking information on a draft Integrated, Interagency Pre-Application (IIP) Process for significant onshore electric transmission projects requiring Federal authorizations. An announcement extending the public comment period for submitting comments regarding the IIP Process was published in the Federal Register on

146

Application Periods Open for 2014 National Clean Energy Business Plan  

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

Application Periods Open for 2014 National Clean Energy Business Application Periods Open for 2014 National Clean Energy Business Plan Competition's Regional Contests Application Periods Open for 2014 National Clean Energy Business Plan Competition's Regional Contests November 14, 2013 - 5:05pm Addthis The Energy Department today announced the opening of the application periods for six regional competitions that are part of the 2014 U.S. Department of Energy National Clean Energy Business Plan Competition. The competition aims to inspires university teams and promote entrepreneurship in clean energy technologies that will boost American competitiveness, bring cutting-edge clean energy solutions to the market, and strengthen our economic prosperity. The National Clean Energy Business Plan Competition challenges university

147

Total Estimated Contract Cost: Performance Period Total Fee Paid  

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

15,763,807 Contractor: 93,591,118 Fee Available Contract Period: Contract Type: URSCH2M Oak Ridge, LLC (UCOR) DE-SC-0004645 April 29, 2011 - July 13, 2016 Contract...

148

Stochastic relationships for periodic responses in randomly heterogeneous aquifers  

E-Print Network (OSTI)

The aim of this work is to develop a theoretical framework for the analysis of groundwater head oscillations commonly observed in bores near boundaries of surface water bodies that are subject to periodic variations in ...

McLaughlin, Dennis

149

High accuracy periodic solutions to the Sivashinsky equation  

Science Conference Proceedings (OSTI)

The aim of this work is the accurate calculation of periodic solutions to the Sivashinsky equation, which models dynamics of the long wave instability of laminar premixed flame. A highly accurate computational algorithm was developed in both one and ...

V. Karlin; V. Maz'ya; G. Schmidt

2003-06-01T23:59:59.000Z

150

The Arm Program's Water Vapor Intensive Observation Periods  

Science Conference Proceedings (OSTI)

A series of water vapor intensive observation periods (WVIOPs) were conducted at the Atmospheric Radiation Measurement (ARM) site in Oklahoma between 1996 and 2000. The goals of these WVIOPs are to characterize the accuracy of the operational ...

H. E. Revercomb; D. D. Turner; D. C. Tobin; R. O. Knuteson; W. F. Feltz; J. Barnard; J. Bösenberg; S. Clough; D. Cook; R. Ferrare; J. Goldsmith; S. Gutman; R. Halthore; B. Lesht; J. Liljegren; H. Linné; J. Michalsky; V. Morris; W. Porch; S. Richardson; B. Schmid; M. Splitt; T. Van Hove; E. Westwater; D. Whiteman

2003-02-01T23:59:59.000Z

151

Does the period of BE Lyncis really vary?  

E-Print Network (OSTI)

New photometric series of BE Lyncis are presented. With template curve fitting we re-determined the $O-C$ for BE Lyncis. The phase shift diagram is apparently constant, disproving the suspected period variations of BE Lyn.

R. Szakáts; Gy. M. Szabó; K. Szatmáry

2008-02-08T23:59:59.000Z

152

Numerical Model Studies of Long-Period Edge Waves  

Science Conference Proceedings (OSTI)

A numerical modeling study of aspects of the generation and propagation of long-period edge waves along a continental shelf is described. The numerical model is based on the traditional shallow-water dynamics. A scale analysis indicates that ...

F. A. Shillington; D. Van Foreest

1986-08-01T23:59:59.000Z

153

Application Periods Open for 2014 National Clean Energy Business Plan  

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

Application Periods Open for 2014 National Clean Energy Business Application Periods Open for 2014 National Clean Energy Business Plan Competition's Regional Contests Application Periods Open for 2014 National Clean Energy Business Plan Competition's Regional Contests November 14, 2013 - 5:05pm Addthis The Energy Department today announced the opening of the application periods for six regional competitions that are part of the 2014 U.S. Department of Energy National Clean Energy Business Plan Competition. The competition aims to inspires university teams and promote entrepreneurship in clean energy technologies that will boost American competitiveness, bring cutting-edge clean energy solutions to the market, and strengthen our economic prosperity. The National Clean Energy Business Plan Competition challenges university

154

Period doubling route to chaos in Taylor-Green dynamo  

E-Print Network (OSTI)

We perform spectral simulations of dynamo for magnetic Prandtl number of one with Taylor-Green forcing. We observe dynamo transition through a supercritical pitchfork bifurcation. Beyond the transition, the numerical simulations reveal complex dynamo states with windows of constant, periodic, quasiperiodic, and chaotic magnetic field configurations. For some forcing amplitudes, multiple attractors were obtained for different initial conditions. We show that one of the chaotic windows follows the period-doubling route to chaos.

R. Yadav; M. Chandra; M. K. Verma; S. Paul; P. Wahi

2010-05-09T23:59:59.000Z

155

Transport and Fractionation in Periodic Potential-Energy Landscapes  

E-Print Network (OSTI)

Objects driven through periodically modulated potential-energy landscapes in two dimensions can become locked in to symmetry-selected directions that are independent of the driving force's orientation. We investigate this problem in the overdamped limit, and demonstrate that the crossover from free-flowing to locked-in transport can depend exponentially on an object's size, with this exceptional selectivity emerging from the periodicity of the environment.

Kosta Ladavac; Matthew Pelton; David G. Grier

2004-04-09T23:59:59.000Z

156

Local Operations in qubit arrays via global but periodic Manipulation  

E-Print Network (OSTI)

We provide a scheme for quantum computation in lattice systems via global but periodic manipulation, in which only effective periodic magnetic fields and global nearest neighbor interaction are required. All operations in our scheme are attainable in optical lattice or solid state systems. We also investigate universal quantum operations and quantum simulation in 2 dimensional lattice. We find global manipulations are superior in simulating some nontrivial many body Hamiltonians.

Zheng-Wei Zhou; Yong-Jian Han; Guang-Can Guo

2006-10-20T23:59:59.000Z

157

Periodic Inspections of Concrete-Armored Coastal Structures  

E-Print Network (OSTI)

information on the long-term structural performance of selected concrete-armored navigation structures to their environment. Inspections of coastal structures at Ofu Harbor, American Samoa; Nawiliwili, Laupahoehoe, and Kahului Harbors, HI; and Manasquan Inlet, NJ, are discussed herein. The response of stone-armored coastal structures to their environment was presented in ERDC/CHL CHETN-III-65. OVERVIEW: In the “Periodic Inspections ” work unit of the Monitoring Completed Navigation Projects (MCNP) Program, selected coastal navigation structures are periodically monitored to gain an understanding of their long-term structural response. Periodic data sets are evaluated to improve knowledge in design, construction, and maintenance of both existing and proposed coastal navigation projects, and will help avoid repeating past designs that have failed and/or resulted in high maintenance costs. Low-cost remote sensing tools and techniques, with limited ground truthing surveys, are the primary inspection tools used in the periodic monitoring efforts. Most periodic inspections consist of capturing above-water conditions of the structures at periodic intervals using high-resolution aerial photography. Structural changes (primary armor unit movement) are quantified through photogrammetric techniques. When a coastal structure is photographed at low

Robert R. Bottin

2003-01-01T23:59:59.000Z

158

Periodic Inspections of Coastal Structures with Stone Armor  

E-Print Network (OSTI)

information on the long-term structural performance of selected stone-armored navigation structures to their environment. Coastal structures at St. Paul Harbor, AK, and Burns Harbor, IN, are discussed herein. The response of concrete-armored coastal structures to their environment will be presented in a subsequent CHETN. OVERVIEW: In the “Periodic Inspections ” work unit of the Monitoring Completed Navigation Projects (MCNP) Program, selected coastal navigation structures are periodically monitored to gain an understanding of their long-term structural response. Periodic data sets are evaluated to improve knowledge in design, construction, and maintenance of both existing and proposed coastal navigation projects, and will help avoid repeating past designs that have failed and/or resulted in high maintenance costs. Relatively low-cost remote sensing tools and techniques, with limited ground truthing surveys, are the primary inspection tools used in the periodic monitoring efforts. Most periodic inspections consist of capturing above-water conditions of the structures at periodic intervals using high-resolution aerial photography. Structural changes (primary armor unit movement) are quantified through photogrammetric techniques. When a coastal structure is photographed at low tide, an accurate permanent record of all visible armor units is obtained. Through the use of

Robert R. Bottin

2003-01-01T23:59:59.000Z

159

Optimal Quantization of Periodic Task Requests on Multiple Identical Processors  

E-Print Network (OSTI)

We simplify the periodic tasks scheduling problem by making a trade off between processor load and computational complexity. A set N of periodic tasks, each characterized by its density # i , contains n possibly unique values of # i . We transform N through a process called quantization, in which each # i N is mapped onto a service level s j L, where L jjl # n and # i s j (this second condition differentiates this problem from the p-median problem on the real line). We define the Periodic Task Quantization problem with Deterministic input (PTQ-D) and present an optimal polynomial time dynamic programming solution. We also introduce the problem PTQ-S (with Stochastic input) and present an optimal solution. We examine, in a simulation study, the trade off penalty of excess processor load needed to service the set of quantized tasks over the original set, and find that, through quantization onto as few as 15 or 20 service levels, no more than 5 percent processor load is required above the amount requested. Finally, we demonstrate that the scheduling of a set of periodic tasks is greatly simplified through quantization and we present a fast online algorithm that schedules quantized periodic tasks.

Laura E. Jackson; George N. Rouskas

2003-01-01T23:59:59.000Z

160

A simple test for periodic signals in red noise  

E-Print Network (OSTI)

We demonstrate a simple method for testing the significance of peaks in the periodogram of red noise data. The procedure was designed to test for spurious periodicities in X-ray light curves of active galaxies, but can be used quite generally to test for periodic components against a background noise spectrum assumed to have a power law shape. The method provides a simple and fast test of the significance of candidate periodic signals in short, well-sampled time series such as those obtained from XMM-Newton observations of Seyfert galaxies, without the need for Monte Carlo simulations. A full account is made of the number of trials and the uncertainties inherent to the model fitting. Ignoring these subtle effects can lead to substantially overestimated significances. These difficulties motivate us to demand high standards of detection (minimum >99.9 per cent confidence) for periodicities in sources that normally show red noise spectra. The method also provides a simple means to estimate the power spectral index, which may be an interesting parameter itself, regardless of the presence/absence of periodicities.

S. Vaughan

2004-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

LONG-TERM PERIODICITY VARIATIONS OF THE SOLAR RADIUS  

Science Conference Proceedings (OSTI)

In order to study the long-term periodicity variations of the solar radius, daily solar radius data from 1978 February to 2000 September at the Calern Observatory are used. Continuous observations of the solar radius are difficult due to the weather, seasonal effects, and instrument characteristics. Thus, to analyze these data, we first use the Dixon criterion to reject suspect values, then we measure the cross-correlation between the solar radius and sunspot numbers. The result indicates that the solar radius is in complete antiphase with the sunspot numbers and shows lead times of 74 months relative to the sunspot numbers. The Lomb-Scargle and date compensated discrete Fourier transform methods are also used to investigate the periodicity of the solar radius. Both methods yield similar significance periodicities around {approx}1 yr, {approx}2.6 yr, {approx}3.6 yr, and {approx}11 yr. Possible mechanisms for these periods are discussed. The possible physical cause of the {approx}11 yr period is the cyclic variation of the magnetic pressure of the concentrated flux tubes at the bottom of the solar convection zone.

Qu, Z. N.; Xie, J. L. [National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011 (China)] [National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011 (China)

2013-01-01T23:59:59.000Z

162

Notice of extension of public comment period for reply comments. |  

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

extension of public comment period for reply comments. extension of public comment period for reply comments. Notice of extension of public comment period for reply comments. On July 27, 2010, the Department of Energy (DOE) published in the Federal Register a notice of inquiry (NOI) and request for comment from the public in its development of regulations pertaining to section 934, of the Energy Independence and Security Act of 2007 (''Act''). Section 934 addresses how the United States will meet its obligations under the Convention for Supplementary Compensation for Nuclear Damage (''CSC'') including its obligation to contribute to an international supplementary fund in the event of certain nuclear incidents.The NOI provided a September 27, 2010, deadline for comments, which was subsequently extended to October 27, 2010 in response to a public

163

DOE Extends Comment Period on Certification and Enforcement Notice of  

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

Certification and Enforcement Notice Certification and Enforcement Notice of Proposed Rulemaking DOE Extends Comment Period on Certification and Enforcement Notice of Proposed Rulemaking October 15, 2010 - 10:22am Addthis In response to a formal request, the Department has extended to October 29, 2010, the deadline for submission of comments in response to the Notice or Proposed Rulemaking on the certification and enforcement of the Department's energy conservation standards. (75 FR 56796). The signed extension provided here will be published shortly in the Federal Register. Addthis Related Articles DOE Extends Comment Period on Notice of Inquiry Under the Energy Independence and Security Act DOE Extends Comment Period on Notice of Inquiry Under the Energy Independence and Security Act Department of Energy Issues Final Rule on Loan Guarantees

164

STAR Teaching Program Application Period | Department of Energy  

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

STAR Teaching Program Application Period STAR Teaching Program Application Period STAR Teaching Program Application Period December 28, 2012 2:30PM EST to January 31, 2013 5:30PM EST Cal Poly The Science Teacher and Researcher (STAR) Researcher program, a collaborative project of California State University, provides pre-service and early career science teachers with eight week long paid mentor and research opportunities at a national research center. Applicants must have the following: A demonstrated interest in becoming a science or mathematics teacher at the secondary level (grades 6-12) Either a California State University (CSU) student OR NSF Noyce Scholar in the United States OR a STAR Alum with two or fewer years of participation AND two or fewer years of teaching experience (first time participants must be pre-service teachers, i.e., not yet teaching full-time

165

Notice of extension of public comment period for reply comments. |  

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

Notice of extension of public comment period for reply comments. Notice of extension of public comment period for reply comments. Notice of extension of public comment period for reply comments. On July 27, 2010, the Department of Energy (DOE) published in the Federal Register a notice of inquiry (NOI) and request for comment from the public in its development of regulations pertaining to section 934, of the Energy Independence and Security Act of 2007 (''Act''). Section 934 addresses how the United States will meet its obligations under the Convention for Supplementary Compensation for Nuclear Damage (''CSC'') including its obligation to contribute to an international supplementary fund in the event of certain nuclear incidents.The NOI provided a September 27, 2010, deadline for comments, which was subsequently extended to October 27, 2010 in response to a public

166

Department of Energy Announces Plans for Additional Comment Period on  

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

Announces Plans for Additional Comment Period Announces Plans for Additional Comment Period on National Interest Electric Transmission Corridors Department of Energy Announces Plans for Additional Comment Period on National Interest Electric Transmission Corridors November 9, 2006 - 9:38am Addthis Under Section 1221(a) of the Energy Policy Act of 2005, the Department of Energy must issue a report based on the Department's August 8 Congestion Study. In that report, the Secretary may designate as a "national interest electric transmission corridor" (National Corridor) any geographic area experiencing electric energy transmission capacity constraints or congestion that adversely affects consumers. After issuing the August 8 Congestion Study, the Department invited public comment and received comments on the study from a variety of entities

167

Property:Wave Period Range(s) | Open Energy Information  

Open Energy Info (EERE)

Wave Period Range(s) Wave Period Range(s) Jump to: navigation, search Property Name Wave Period Range(s) Property Type String Pages using the property "Wave Period Range(s)" Showing 25 pages using this property. (previous 25) (next 25) 1 1.5-ft Wave Flume Facility + 10.0 + 10-ft Wave Flume Facility + 0.0 + 11-ft Wave Flume Facility + 10.0 + 2 2-ft Flume Facility + 10.0 + 3 3-ft Wave Flume Facility + 10.0 + 5 5-ft Wave Flume Facility + 10.0 + 6 6-ft Wave Flume Facility + 10.0 + A Alden Large Flume + 2.1 + Alden Small Flume + 0.0 + Alden Wave Basin + 1.0 + B Breakwater Research Facility + 0.0 + C Carderock Maneuvering & Seakeeping Basin + 0.0 + Carderock Tow Tank 2 + 0.0 + Carderock Tow Tank 3 + 0.0 + Chase Tow Tank + 3.1 + Coastal Harbors Modeling Facility + 2.3 +

168

The Best Damn Windows Server 2008 Book Period, 2 edition  

Science Conference Proceedings (OSTI)

The Second Edition of the Best Damn Windows Server Book Period is completely revised and updated to Windows Server 2008.This book will show you how to increase the reliability and flexibility of your server infrastructure with built-in Web and ... Keywords: Applied, Computer Science, Computers, Security, Viruses

Anthony Piltzecker

2008-06-01T23:59:59.000Z

169

Technical Note: Multiobjective topology optimization for finite periodic structures  

Science Conference Proceedings (OSTI)

Many engineering structures consist of specially-fabricated identical components, thus their topology optimizations with multiobjectives are of particular importance. This paper presents a unified optimization algorithm for multifunctional 3D finite ... Keywords: Multicomponents, Multiobjective, Pareto optimum, Periodic structure, Sensitivity analysis, Topology optimization

Yuhang Chen; Shiwei Zhou; Qing Li

2010-06-01T23:59:59.000Z

170

The correlation of Abiyev's balanced squares with periodic law  

Science Conference Proceedings (OSTI)

For the first time, a perfect algorithm for writing the magic squares has been found by Abiyev. With the help of this algorithm we can write not only magic squares, but also magic cubes from any numbers of any orders. These squares have been called the ... Keywords: algorithm, correlation, magic square, periodic law, sequence, super-heavy

Asker Ali Abiyev

2011-09-01T23:59:59.000Z

171

Inferring the Subduction Rate and Period over the North Atlantic  

Science Conference Proceedings (OSTI)

The annual rate at which mixed-layer fluid is transferred into the permanent thermocline—that is, the annual subduction rate Sann and the effective subduction period eff—is inferred from climatological data in the North Atlantic. From its ...

John C. Marshall; Richard G. Williams; A. J. George Nurser

1993-07-01T23:59:59.000Z

172

Quarterly Construction Status Report Period Ending: June 30, 2012  

E-Print Network (OSTI)

of each project together with progress photographs and the project manager's estimate of the cost to complete the project. Because the reports contain projected costs and also account for budget risks #12;Quarterly Construction Status Report Period Ending: June 30, 2012 Project Number Project Index

Holsinger, Kent

173

On the Polyharmonic Operator with a Periodic Potential  

E-Print Network (OSTI)

In this paper we obtain the asymptotic formulas of arbitrary order for the Bloch eigenvalues and Bloch functions of the multidimensional polyharmonic operator with periodic, with respect to arbitrary lattice, potential. Then we prove that the number of gaps in the spectrum of the operator is finite. In particular, we get the proof of the Bethe -Sommerfeld conjecture for arbitrary dimension and arbitrary lattice.

O. A. Veliev

2005-12-05T23:59:59.000Z

174

Fano-Type Resonance of Waves in Periodic Slabs  

E-Print Network (OSTI)

We investigate Fano-type anomalous transmission of energy of plane waves across lossless slab scatterers with periodic structure in the presence of non-robust guided modes. Our approach is based on rigorous analytic perturbation of the scattering problem near a guided mode and applies to very general structures, continuous and discrete.

Natalia Ptitsyna; Stephen P. Shipman; Stephanos Venakides

2008-04-20T23:59:59.000Z

175

Solar Wind Oscillations With a 1.3 Year Period  

E-Print Network (OSTI)

. The IMP-8 and Voyager 2 spacecraft have ecently detected a very strong modulation in the solar wind d w speed with an approximately 1.3 year period. Combine ith evidence from long-term auroral and magnetometer o studies, this suggests that fundamental changes in the Sun ccur on a roughly 1.3 year time scale. Introduction The Sun emits a continuous stream of ionized particles s d called the solar wind. This wind is not constant, but varie ue to changes on the Sun. Strong periodicities in the solar ) [ wind linked with the solar rotation period (roughly 25 days Neugebauer and Snyder, 1966] and the solar cycle , 1 [Neugebauer, 1975; Bridge, 1977; Lazarus and McNutt 990] have been observed. Periodicities ranging from 51 to r s 256 days have been reported both in solar wind and in othe olar observations (see Villanueva [1994] and references a therein). Solar cycle variations of sunspot numbers and uroral activity are well established [see review by Silverman, 1992]. The IMP...

John Richardson Karolen; John D. Richardson; Karolen I. Paularena; John W. Belcher; Alan J. Lazarus

1994-01-01T23:59:59.000Z

176

PERIODIC MOTION IN HIGH-SYMMETRIC FLOW Lennaert van Veen  

E-Print Network (OSTI)

is supplied by fixing the smallest wave number components of velocity. The smallest wave number corresponding to a nonzero velocity component is kf = |kf | = 11 and the energy of these fixed components is Ef = 3PERIODIC MOTION IN HIGH-SYMMETRIC FLOW Lennaert van Veen Department of Mechanical Engineering

van Veen, Lennaert

177

Periodic orbit spectrum in terms of Ruelle--Pollicott resonances  

E-Print Network (OSTI)

Fully chaotic Hamiltonian systems possess an infinite number of classical solutions which are periodic, e.g. a trajectory ``p'' returns to its initial conditions after some fixed time tau_p. Our aim is to investigate the spectrum tau_1, tau_2, ... of periods of the periodic orbits. An explicit formula for the density rho(tau) = sum_p delta (tau - tau_p) is derived in terms of the eigenvalues of the classical evolution operator. The density is naturally decomposed into a smooth part plus an interferent sum over oscillatory terms. The frequencies of the oscillatory terms are given by the imaginary part of the complex eigenvalues (Ruelle--Pollicott resonances). For large periods, corrections to the well--known exponential growth of the smooth part of the density are obtained. An alternative formula for rho(tau) in terms of the zeros and poles of the Ruelle zeta function is also discussed. The results are illustrated with the geodesic motion in billiards of constant negative curvature. Connections with the statistical properties of the corresponding quantum eigenvalues, random matrix theory and discrete maps are also considered. In particular, a random matrix conjecture is proposed for the eigenvalues of the classical evolution operator of chaotic billiards.

P. Leboeuf

2004-06-18T23:59:59.000Z

178

Some Thoughts on Stability in Nonlinear Periodic Focusing Systems  

DOE R&D Accomplishments (OSTI)

A brief discussion is given of the long-term stability of particle motions through periodic focusing structures containing lumped nonlinear elements. A method is presented whereby one can specify the nonlinear elements in such a way as to generate a variety of structures in which the motion has long-term stability.

McMillan, E. M.

1967-09-05T23:59:59.000Z

179

The Best Damn Firewall Book Period, 2 edition  

Science Conference Proceedings (OSTI)

The Second Edition of the Best Damn Firewall Book Period is completely revised and updated to include all of the most recent releases from Microsoft, Cisco, Juniper Network, SonicWALL, and Check Point.Compiled from the best of the Syngress firewall ... Keywords: Security

Cherie Amon; Thomas W. Shinder; Anne Carasik-Henmi

2007-12-01T23:59:59.000Z

180

Period Modulation of the Stratospheric Quasi-biennial Oscillation  

Science Conference Proceedings (OSTI)

The period of the stratospheric quasi-biennial oscillation (QBO) in zonal wind is studied with the aid of rocket observations at Kwaialein (9°N, 168°N) for altitudes 25–35 km and rawinsonde observations for Balboa (9°N, 80°W) for pressure levels ...

Roderick S. Quiroz

1981-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Multi-period optimization of pavement management systems  

E-Print Network (OSTI)

The purpose of this research is to develop a model and solution methodology for selecting and scheduling timely and cost-effective maintenance, rehabilitation, and reconstruction activities (M & R) for each pavement section in a highway network and allocating the funding levels through a finite multi-period horizon within the constraints imposed by budget availability in each period, frequency availability of activities, and specified minimum pavement quality requirements. M & R is defined as a chronological sequence of reconstruction, rehabilitation, and major/minor maintenance, including a "do nothing" activity. A procedure is developed for selecting an M & R activity for each pavement section in each period of a specified extended planning horizon. Each activity in the sequence consumes a known amount of capital and generates a known amount of effectiveness measured in pavement quality. The effectiveness of an activity is the expected value of the overall gains in pavement quality rating due to the activity performed on a highway network over an analysis period. It is assumed that the unused portion of the budget for one period can be carried over to subsequent periods. Dynamic Programming (DP) and Branch-and-Bound (B-and-B) approaches are combined to produce a hybrid algorithm for solving the problem under consideratioin. The algorithm is essentially a DP approach in the sense that the problem is divided into smaller subproblems corresponding to each single period problem. However, the idea of fathoming partial solutions that could not lead to an optimal solution is incorporated within the algorithm to reduce storage and computational requirements in the DP frame using the B-and-B approach. The imbedded-state approach is used to reduce a multi-dimensional DP to a one-dimensional DP. For bounding at each stage, the problem is relaxed in a Lagrangean fashion so that it separates into longest-path network model subproblems. The values of the Lagrangean multipliers are found by a subgradient optimization method, while the Ford-Bellman network algorithm is employed at each iteration of the subgradient optimization procedure to solve the longest-path network problem as well as to obtain an improved lower and upper bound. If the gap between lower and upper bound is sufficiently small, then we may choose to accept the best known solutions as being sufficiently close to optimal and terminate the algorithm rather than continue to the final stage.

Yoo, Jaewook

2005-05-01T23:59:59.000Z

182

GM and Amtrak opt for combined-cycle cogeneration: Amtrak sells 100% of electricity, expects 2. 8-year payback  

Science Conference Proceedings (OSTI)

A $4.2 million dual-fuel cogeneration system for an Amtrak maintenance facility will pay for itself in 2.8 years with revenues from selling all the generated electricity to the local utility at an average of 8 cents per kWh. The 5.3 MW system consists of a gas turbine, a 4.3 MW generator, and a waste heat recovery boiler. The facility will use all the steam for heating requirements, with excess steam running a steam turbine to generate an additional 1.25 MW. The dual-fuel feature provided leverage to avoid take-or-pay status with the gas supplier. The high sellback price is the results of a 20-year contract to sell 100% of electricity output.

Warrock, A.M.

1985-06-10T23:59:59.000Z

183

LIFE CYCLE ANALYSIS OF HIGH-PERFORMANCE MONOCRYSTALLINE SILICON PHOTOVOLTAIC SYSTEMS: ENERGY PAYBACK TIMES AND NET ENERGY PRODUCTION VALUE  

E-Print Network (OSTI)

LIFE CYCLE ANALYSIS OF HIGH-PERFORMANCE MONOCRYSTALLINE SILICON PHOTOVOLTAIC SYSTEMS: ENERGY and other countries. Higher efficiencies are produced by innovative cell designs and material and energy% more electricity than average efficiency (i.e., 14%) c-Si PV modules. Keywords: Photovoltaic, energy

184

DOE Extends Public Comment Period for Uranium Program Environmental Impact  

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

Uranium Program Environmental Uranium Program Environmental Impact Statement DOE Extends Public Comment Period for Uranium Program Environmental Impact Statement April 18, 2013 - 1:08pm Addthis Contractor, Bob Darr, S.M. Stoller Corporation Public Affairs, (720) 377-9672, ULinfo@lm.doe.gov GRAND JUNCTION, Colo. - The U.S. Department of Energy (DOE) today announced that the public comment period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement (ULP PEIS) has been extended to May 31, 2013. Under the Uranium Leasing Program, DOE's Office of Legacy Management manages 31 tracts of land in Mesa, Montrose, and San Miguel counties in Colorado - approximately 25,000 acres - that are leased to private entities for uranium and vanadium mining. No mining operations are active

185

Dynamics of periodic structures in an extended laser spark  

SciTech Connect

The time scans of the intrinsic and scattered heating radiations of plasma foci, arising in the spark channel of the optical gas breakdown in a Bessel beam, were investigated. The experiments were carried out in argon at atmospheric pressure by using the heating radiation from a powerful nanosecond neodymium laser. The influence of independent preionisation and of the presence of aerosol particles was studied separately. The results indicate the appearance of bright foci against the background of the initially almost homogeneous plasma. The location of the foci in the longitudinal direction and the dynamics of the emitted radiation by them make it possible to assign the observed inhomogeneities to two quasi-periodic structures with periods differing almost by an order of magnitude. The above structures result from the operation of various mechanisms of the formation of inhomogeneities. (interaction of laser radiation with matter. laser plasma)

Bychkov, S S; Gorlov, S V; Makarov, A V; Margolin, L Ya; Pyatnitskii, Lev N; Tal'virskii, A D [Scientific Association for High Temperatures, Russian Academy of Sciences, Moscow (Russian Federation)

1999-03-31T23:59:59.000Z

186

Quantum Algorithm for Computing the Period Lattice of an Infrastructure  

E-Print Network (OSTI)

We present a quantum algorithm for computing the period lattice of infrastructures of fixed dimension. The algorithm applies to infrastructures that satisfy certain conditions. The latter are always fulfilled for infrastructures obtained from global fields, i.e., algebraic number fields and function fields with finite constant fields, as described in [Fon11]. The first of our main contributions is a rigorous and complete proof that the running time of the algorithm is polynomial in the logarithm of the determinant of the period lattice and exponential in the dimension n. The second main contribution is the determination of an explicit lower bound on the success probability of our algorithm which improves on the bounds given in the works of Hallgren and Schmidt and Vollmer. The exponential scaling seems inevitable because the best currently known methods for carrying out fundamental arithmetic operations in infrastructures obtained from algebraic number fields take exponential time. In contrast, the problem of...

Fontein, Felix

2011-01-01T23:59:59.000Z

187

Forecasting electricity load demand: analysis of the 2001 rationing period  

E-Print Network (OSTI)

CEPEL e UENF. Abstract. This paper studies the electricity load demand behavior during the 2001 rationing period, which was implemented because of the Brazilian energetic crisis. The hourly data refers to a utility situated in the southeast of the country. We use the model proposed by Soares and Souza (2003), making use of generalized long memory to model the seasonal behavior of the load. The rationing period is shown to have imposed a structural break in the series, decreasing the load at about 20%. Even so, the forecast accuracy is decreased only marginally, and the forecasts rapidly readapt to the new situation. The forecast errors from this model also permit verifying the public response to pieces of information released regarding the crisis.

Leonardo Rocha Souza; Lacir Jorge Soares; Leonardo Rocha Souza; Epge Fundação; Getúlio Vargas; Lacir Jorge Soares

2003-01-01T23:59:59.000Z

188

Particle energization through time-periodic helical magnetic fields  

E-Print Network (OSTI)

We solve for the motion of charged particles in a helical time-periodic ABC (Arnold-Beltrami-Childress) magnetic field. The magnetic field lines of a stationary ABC field with $A=B=C=1$ are chaotic, and we show that the motion of a charged particle in such a field is also chaotic at late time with positive Lyapunov exponent. We further show that in time-periodic (frequency $\\omega$) ABC fields the kinetic energy of a charged particle can increase indefinitely with time. At late times the mean kinetic energy grows as a power law in time with exponent $\\xi$ that approaches unity. For an initial distribution of particles, whose kinetic energy is uniformly distributed within some interval, the PDF of kinetic energy is, at late time, close to a Gaussian but with steeper tails.

Dhrubaditya Mitra; Axel Brandenburg; Brahmananda Dasgupta; Eyvind Niklasson; Abhay Ram

2013-06-01T23:59:59.000Z

189

Periodic invariant, general relativity predictions and origin of universe  

E-Print Network (OSTI)

A general form of space-time invariant called periodic invariant is proposed in which the special relativity invariant appear as a special case. This leads to invariant force-energy relation which when used in conjunction with suitably modified Newtonian orbital energy equation yields equations for gravitational redshift and bending of light without utilizing Riemannian geometry and geodesic trajectories. These derivations allow constant velocity of light and are later shown to satisfy Einstein's field equations and provide alternative to Schwarzschild solution. Perihelic precession theory of general relativity is retained unaltered but the equation of planet motion and the solution of the radial vector are improved to yield exact two body solution that satisfies Einstein's field equations. The periodic invariant is based on the concept that the time is a periodic phenomenon. This theory dubbed periodic relativity (PR) does not contradict the lowest order predictions of geneal relativity but differs in second order terms. The limiting radius of the event horizon in PR is half the value of the Schwarzschild radius. The theory leads to the derivation of quantum invariant which can vanish in an absolute sense resulting in a singularity implying a universe beginning with a vibration in an unmanifested state of primal energy eventually followed by inflation of the Lambda-CDM model. In PR every two body system can deviate differently from the flat Minkowski metric. Verification of PR requires inclusion of proper time interval of planet as an observable orbital parameter to ephemerides. The theory provides very accurate solutions for the Pioneer anomaly and the rotation curves of galaxies outside the framework of general relativity.

Vikram H. Zaveri

2007-07-31T23:59:59.000Z

190

Orientation dynamics of weakly Brownian particles in periodic viscous flows  

E-Print Network (OSTI)

Evolution equations for the orientation distribution of axisymmetric particles in periodic flows are derived in the regime of small but non-zero Brownian rotations. The equations are based on a multiple time scale approach that allows fast computation of the relaxation processes leading to statistical equilibrium. The approach has been applied to the calculation of the effective viscosity of a thin disk suspension in gravity waves.

Piero Olla

2005-07-12T23:59:59.000Z

191

Grid operators' newest nightmare: managing low-demand periods  

Science Conference Proceedings (OSTI)

As more renewable energy resources are added in many parts of the world, a new and even more daunting challenge is likely to face grid operators in the future - how to get through the minimum demand periods. This is especially a problem in systems where the difference between the daytime peak, usually in the early to late summer afternoons, and minimum load, usually in the late evening and early morning hours, is significant.

NONE

2009-08-15T23:59:59.000Z

192

Some Thoughts on Stability in Nonlinear Periodic Focusing Systems [Addendum  

DOE R&D Accomplishments (OSTI)

Addendum to September 5, 1967 report with the same title and with the abstract: A brief discussion is given of the long-term stability of particle motions through periodic focusing structures containing lumped nonlinear elements. A method is presented whereby one can specify the nonlinear elements in such a way as to generate a variety of structures in which the motion has long-term stability.

McMillan, Edwin M.

1968-03-29T23:59:59.000Z

193

MSU Extension Publication Archive Archive copy of publication, do not use for current recommendations. Up-to-date  

E-Print Network (OSTI)

layers. The cost is $.90 to $1.50 per square foot, with a payback period of three to five years. Window side out, press and ad- just bulk of fiberfill. Stitch up- per casing for spring pressure rod. Adjust

194

MSU Extension Publication Archive Archive copy of publication, do not use for current recommendations. Up-to-date  

E-Print Network (OSTI)

layers. The cost is $.90 to $1.50 per square foot, with a payback period of three to five years. Window up- per casing for spring pressure rod. Adjust length of quilt if neces- sary. Turn bottom quilt

195

--No Title--  

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

lamps will be retrofit into these fixtures. The lighting retrofit objective is to reduce energy usage to a level that will provide a payback in no more than a 10-year period. In...

196

Clean Cities Niche Market Overview: Refuse Haulers (Brochure...  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

payback period and are more resilient to changes in costs. Liquefied natural gas (LNG) is an option for refuse hauler fleets that need more fuel in a smaller space. LNG is...

197

Technical and Economic Feasibility Study of Utility-Scale Wind...  

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

&spv0&st0&srp1&stateKS. vii Table ES-1. Turbine Performance and Economics, Including Job Creation Estimates 5 Annual Cost Savings (year) Payback Period (years) Wind System...

198

Energy Conservation Tax Credits - Small Premium Projects (Personal...  

Open Energy Info (EERE)

System Size Projects must cost less than 20,000 Equipment Requirements First year energy savings must yield a simple payback period of greater than 3 years. Start Date 2011...

199

Energy Conservation Tax Credits - Small Premium Projects (Corporate...  

Open Energy Info (EERE)

System Size Projects must cost less than 20,000 Equipment Requirements First year energy savings must yield a simple payback period of greater than 3 years. Start Date 2011...

200

Some Reflections on the Periodization of Tibetan History  

E-Print Network (OSTI)

into nine overarching periods marked not only bykey political transitions but also fundamental religious, intellectual,socioeconomic, and even scientific break-throughs. The work is a trulyremarkable example of how Tibetan historiography has matured since... , Tibet Handbook with Bhutan (1996)1. The Yar-lung Dynasty (c. pre-842)2. Persecution of Buddhism and Disintegration of Empire (c. 842-978)3. The Later Spread of Buddhism (c. 978-1235)4. The Sa-skya-pa Administration (c. 1235-1349)5. The Phag...

Cuevas, Bryan

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Quantum phase transitions in the quasi-periodic kicked rotor  

E-Print Network (OSTI)

We present a microscopic theory of transport in quasi-periodically driven environments (`kicked rotors'), as realized in recent atom optic experiments. We find that the behavior of these systems depends sensitively on the value of Planck's constant $\\tilde h$: for irrational values of $\\tilde h/(4\\pi)$ they fall into the universality class of disordered electronic systems and we derive the microscopic theory of the ensuing localization phenomena. In contrast, for rational values the rotor-Anderson insulator acquires an infinite (static) conductivity and turns into a `super-metal'. Signatures of the corresponding metal/super-metal transition are discussed.

Chushun Tian; Alexander Altland; Markus Garst

2011-01-17T23:59:59.000Z

202

Transmission thresholds in time-periodically driven nonlinear disordered systems  

E-Print Network (OSTI)

We study energy propagation in locally time-periodically driven disordered nonlinear chains. For frequencies inside the band of linear Anderson modes, three different regimes are observed with increasing driver amplitude: 1) Below threshold, localized quasiperiodic oscillations and no spreading; 2) Three different regimes in time close to threshold, with almost regular oscillations initially, weak chaos and slow spreading for intermediate times, and finally strong diffusion; 3) Immediate spreading for strong driving. The thresholds are due to simple bifurcations, obtained analytically for a single oscillator, and numerically as turning-points of the nonlinear response manifold for a full chain. Generically, the threshold is nonzero also for infinite chains.

Magnus Johansson; Georgios Kopidakis; Stefano Lepri; Serge Aubry

2008-12-18T23:59:59.000Z

203

Fast-scale bifurcation . . . converters and effects of incompatible periodicities  

E-Print Network (OSTI)

In this paper, we derive the discrete-time model for the power-factor-correction (PFC) buck-boost converter in terms of a stroboscopic switching map. Fast-scale instability is analysed through a fold diagram, which exposes the periodicity of the operation as well as the locations of the critical phase angles of the line voltage at which instability begins to occur along a half-line cycle. The asymmetrical locations of the critical phase angles along a half-line cycle is explained in terms of ‘underdeveloped’ bifurcation. Border collision bifurcations are observed and analysed in detail.

Jianlong Zou; Xikui Ma; Chi K. Tse; Dong Dai

2006-01-01T23:59:59.000Z

204

Probing molecular free energy landscapes by periodic loading  

E-Print Network (OSTI)

Single molecule pulling experiments provide information about interactions in biomolecules that cannot be obtained by any other method. However, the reconstruction of the molecule's free energy profile from the experimental data is still a challenge, in particular for the unstable barrier regions. We propose a new method for obtaining the full profile by introducing a periodic ramp and using Jarzynski's identity for obtaining equilibrium quantities from non-equilibrium data. Our simulated experiments show that this method delivers significant more accurate data than previous methods, under the constraint of equal experimental effort.

Oliver Braun; Andreas Hanke; Udo Seifert

2004-02-19T23:59:59.000Z

205

Total Resonant Transmission and Reflection by Periodic Structures  

E-Print Network (OSTI)

Resonant scattering of plane waves by a periodic slab under conditions close to those that support a guided mode is accompanied by sharp transmission anomalies. For two-dimensional structures, we establish sufficient conditions, involving structural symmetry, under which these anomalies are characterized by total transmission and total reflection at frequencies separated by an arbitrarily small amount. The loci of total reflection and total transmission are real-analytic curves in frequency-wavenumber space that intersect quadratically at a single point corresponding to the guided mode. A single anomaly or multiple anomalies can be excited by the interaction with a single guided mode.

Stephen P. Shipman; Hairui Tu

2011-05-14T23:59:59.000Z

206

Massive Quantum Memories by Periodically Inverted Dynamic Evolutions  

E-Print Network (OSTI)

We introduce a general scheme to realize perfect quantum state reconstruction and storage in systems of interacting qubits. This novel approach is based on the idea of controlling the residual interactions by suitable external controls that, acting on the inter-qubit couplings, yield time-periodic inversions in the dynamical evolution, thus cancelling exactly the effects of quantum state diffusion. We illustrate the method for spin systems on closed rings with XY residual interactions, showing that it enables the massive storage of arbitrarily large numbers of local states, and we demonstrate its robustness against several realistic sources of noise and imperfections.

S. M. Giampaolo; F. Illuminati; A. Di Lisi; G. Mazzarella

2005-06-27T23:59:59.000Z

207

MASSIVE QUANTUM MEMORIES BY PERIODICALLY INVERTED DYNAMIC EVOLUTIONS  

E-Print Network (OSTI)

We introduce a general scheme to realize perfect quantum state reconstruction and storage in systems of interacting qubits. This novel approach is based on the idea of controlling the residual interactions by suitable external controls that, acting on the inter-qubit couplings, yield time-periodic inversions in the dynamical evolution, thus cancelling exactly the effects of quantum state diffusion. We illustrate the method for spin systems on closed rings with XY residual interactions, showing that it enables the massive storage of arbitrarily large numbers of local states, and we demonstrate its robustness against several realistic sources of noise and imperfections. Keywords: Quantum Information; Quantum Control; Spin Systems. 1.

S. M. Giampaolo; F. Illuminati; A. Di Lisi; G. Mazzarella

2005-01-01T23:59:59.000Z

208

Energy Efficiency Assessment Case Study: Energy Savings at a Rock Crushing and Finishing Operation  

Science Conference Proceedings (OSTI)

Many areas could be identified at this facility where modification could result in energy cost savings. The audit successfully identified savings ranging from $51,000 to $67,000 with associated costs totaling around $72,000 to $81,000. The simple payback for these measures averaged from 1.2 to 1.4 years.

2012-08-27T23:59:59.000Z

209

Two-scale convergence for locally-periodic microstructures and homogenization of plywood structures  

E-Print Network (OSTI)

The generalization of the notion of the two-scale convergence defined for periodic microstructures to the locally-periodic situation is the main aim of this article. The compactness theorem for the locally-periodic two-scale convergence is proven. Then, the locally-periodic two-scale convergence is applied to derive macroscopic equations for a linear elasticity problem defined in domains with locally-periodic and non-periodic plywood microstructures. The fully non-periodic microstructure is approximated by a locally-periodic domain, under regularity assumptions on the transformation matrix, described considered microstructures.

Ptashnyk, Mariya

2011-01-01T23:59:59.000Z

210

Notice of Public Scoping Meetings and Extention of Scoping Period  

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

678 Federal Register 678 Federal Register / Vol. 76, No. 140 / Thursday, July 21, 2011 / Notices you must have Adobe Acrobat Reader, which is available free at this site. You may also access documents of the Department published in the Federal Register by using the article search feature at http:// www.federalregister.gov. Specifically, through the advanced search feature at this site, you can limit your search to documents published by the Department. Dated: July 18, 2011. Eduardo M. Ochoa, Assistant Secretary for Postsecondary Education. [FR Doc. 2011-18454 Filed 7-20-11; 8:45 am] BILLING CODE 4000-01-P DEPARTMENT OF ENERGY Notice of Public Scoping Meetings and Extension of Scoping Period for the U.S. Department of Energy Uranium Leasing Program Programmatic Environmental Impact Statement

211

Total Estimated Contract Cost: Performance Period Total Fee Paid  

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

$ 3,422,994.00 $ 3,422,994.00 FY2011 4,445,142.00 $ FY2012 $ 5,021,951.68 FY2013 $ 3,501,670.00 FY2014 $0 FY2015 $0 FY2016 $0 FY2017 $0 FY2018 $0 FY2019 $0 Cumulative Fee Paid $16,391,758 Wackenhut Services, Inc. DE-AC30-10CC60025 Contractor: Cost Plus Award Fee $989,000,000 Contract Period: Contract Type: January 2010 - December 2019 Contract Number: EM Contractor Fee Site: Savannah River Site Office - Aiken, SC Contract Name: Comprehensive Security Services September 2013 Fee Information Maximum Fee $55,541,496 $5,204,095 $3,667,493 $5,041,415 Minimum Fee 0 Fee Available $5,428,947 $6,326,114

212

Variable Selection and Inference for Multi-period Forecasting Problems  

E-Print Network (OSTI)

?t,x?t)?. Multi-period forecasts of yt can then be obtained iteratively using a conventional VAR of the form zt = µz + ( Ap(L) Bq(L) Cr(L) Ds(L) ) zt?1 + ?t, (10) where p and q are the lag order of yt and xt in the equation for yt and r and s is the lag order... , i.e. Cr(L) and Bq(L) in particular. To deal with this issue, a conditional factor-augmentation approach can be used. In this approach, the large-dimensional xt-vector is condensed into a subset of factors, fˆ t, of dimension m < M , used to summarize...

Pesaran, M Hashem; Pick, Andreas; Timmermann, Allan

213

Coupling Impedance of a Periodic Array of Diaphragms (Erratum)  

SciTech Connect

A method is presented for calculating the high-frequency longitudinal and transverse coupling impedances in a periodic array of diaphragms in a circular perfectly conducting pipe. The method is based on Weinstein's theory of diffraction of a plane electromagnetic wave on a stack of halfplanes. Using Weinstein's solution, it is shown that the problem of finding the beam field in the pipe reduces to an effective boundary condition at the radius of the diaphragms that couples the longitudinal electric field with the azimuthal magnetic one. Solving Maxwell's equations with this boundary condition leads to simple formulae for Z{sub long} and Z{sub tr}. A good agreement with a numerical solution of the problem found by other authors is demonstrated.

Stupakov, G.V.; /SLAC

2012-05-24T23:59:59.000Z

214

Prediction of turbulence control for arbitrary periodic spanwise wall movement  

E-Print Network (OSTI)

In order to generalize the well-known spanwise-oscillating-wall technique for drag reduction, non-sinusoidal oscillations of a solid wall are considered as a means to alter the skin-friction drag in a turbulent channel flow. A series of Direct Numerical Simulations is conducted to evaluate the control performance of nine different temporal waveforms, in addition to the usual sinusoid, systematically changing the wave amplitude and the period for each waveform. The turbulent average spanwise motion is found to coincide with the laminar Stokes solution that is constructed, for the generic waveform, through harmonic superposition. This allows us to define and compute, for each waveform, a new penetration depth of the Stokes layer which correlates with the amount of turbulent drag reduction, and eventually to predict both turbulent drag reduction and net energy saving rate for arbitrary waveforms. Among the waveforms considered, the maximum net energy saving rate is obtained by the sinusoidal wave at its optimal ...

Cimarelli, Andrea; Hasegawa, Yosuke; De Angelis, Elisabetta; Quadrio, Maurizio

2013-01-01T23:59:59.000Z

215

Physics Division progress report for period ending September 30, 1984  

Science Conference Proceedings (OSTI)

The research activities of the Division are centered primarily in three areas: experimental nuclear physics, experimental atomic physics, and theoretical nuclear and atomic physics. The largest of these efforts, experimental nuclear physics, is dominated by the heavy ion research program. A major responsibility under this program is the operation of the Holifield Heavy Ion Research Facility as a national user facility. During the period of this report, the facility has begun routine operation for the experimental program. The experimental atomic physics program has two components: the accelerator-based studies of basic collisional phenomena and the studies in support of the controlled fusion program. Also associated with the fusion-related studies are a plasma diagnostics program and the operation of an atomic physics data center. The theoretical physics program, both nuclear and atomic, is covered. This program has benefited this year from the success of the VAX-AP computer system and from the increase in manpower provided by the ORNL/University of Tennessee Distinguished Scientist Program. Smaller programs in applications and high-energy physics are summarized. During the period of this report, we continued to explore possible future extensions of the Holifield Facility. We retain a strong interest in a relativistic heavy-ion collider in the 10 x 10 GeV/nuclear energy range. The ideas for such a facility, described in last year's report, have been modified to utilize the HHIRF 25 MV tandem accelerator as the first stage. Finally, the report concludes with some general information on publications, Division activities, and personnel changes.

Livingston, A.B. (ed.)

1985-01-01T23:59:59.000Z

216

PHS 398 Modular Budget, Periods 1 and 2 OMB Number: 0925-0001  

E-Print Network (OSTI)

Project Period 41,665.00$ * Section A, Total Direct Costs for Entire Project Period 1,091,665.00 * Section B, Total Indirect Costs for Entire Project Period 506,000.00 * Section C, Total Direct and Indirect Costs (A+B) for Entire Project Period 1,597,665.00 Funds Requested ($) 307,333.00C. Total Direct

Bandettini, Peter A.

217

Torsion-Adding and Asymptotic Winding Number for Periodic Window Sequences  

E-Print Network (OSTI)

In parameter space of nonlinear dynamical systems, windows of periodic states are aligned following routes of period-adding configuring periodic window sequences. In state space of driven nonlinear oscillators, we determine the torsion associated with the periodic states and identify regions of uniform torsion in the window sequences. Moreover, we find that the measured of torsion differs by a constant between successive windows in periodic window sequences. We call this phenomenon as torsion-adding. Finally, combining the torsion and the period adding rules, we deduce a general rule to obtain the asymptotic winding number in the accumulation limit of such periodic window sequences.

E. S. Medeiros; R. O. Medrano-T; I. L. Caldas; S. L. T. De Souza

2012-10-22T23:59:59.000Z

218

Kootenai River Fisheries Investigations : Rainbow Trout Recruitment : Period Covered: 1997.  

DOE Green Energy (OSTI)

The objective of this study was to determine if juvenile production is limiting the population of rainbow trout Oncorbynchus mykiss in the Idaho reach of the Kootenai River. We used snorkeling and electrofishing techniques to estimate juvenile rainbow trout abundance in, and outmigration from, the Deep, Boulder, and Myrtle creek drainages in Idaho. The total population estimates for the three drainages estimated in 1997 were 30,023; 763; and 235; respectively. A rotary-screw trap was utilized to capture juvenile outmigrants for quantification of age at outmigration and total outmigration from the Deep Creek drainage to the Kootenai River. The total outmigrant estimate for 1997 from the Deep Creek drainage was 38,206 juvenile rainbow trout. Age determination based largely on scales suggests that most juvenile rainbow trout outmigration from the Deep Creek drainage occurs at age-l, during the spring runoff period. Forty-three adult rainbow trout captured in the Deep Creek drainage were tagged with $10.00 reward T-bar anchor tags in 1997. A total of three of these fish were harvested, all in Kootenay Lake, British Columbia. This suggests the possibility of an adfluvial component in the spawning population of the Deep Creek drainage.

Downs, Chris

1999-02-02T23:59:59.000Z

219

Shock driven jamming and periodic fracture of particulate rafts  

E-Print Network (OSTI)

A tenuous monolayer of hydrophobic particles at the air-water interface often forms a scum or raft. When such a monolayer is disturbed by the localized introduction of a surfactant droplet, a radially divergent surfactant shock front emanates from the surfactant origin and packs the particles into a jammed, compact, annular band with a packing fraction that saturates at a peak packing fraction $\\phi^*$. As the resulting two-dimensional, disordered elastic band grows with time and is driven radially outwards by the surfactant, it fractures to form periodic triangular cracks with robust geometrical features. We find the number of cracks $N$ and the compaction band radius $R^*$ at fracture onset vary monotonically with the initial packing fraction ($\\phi_{init}$). However, its width $W^*$ is constant for all $\\phi_{init}$. A simple geometric theory that treats the compaction band as an elastic annulus, and accounts for mass conservation allows us to deduce that $N \\simeq 2\\pi R^*/W^* \\simeq 4\\pi \\phi_{RCP}/\\phi_{init}$, a result we verify both experimentally and numerically. We show the essential ingredients for this phenomenon are an initially low enough particulate packing fraction that allows surfactant driven advection to cause passive jamming and eventual fracture of the hydrophobic particulate interface.

M. M. Bandi; T. Tallinen; L. Mahadevan

2010-10-29T23:59:59.000Z

220

Mexico: energy point man. [Period July 1981-January 1982  

SciTech Connect

This issue examines retail petroleum-product prices in the Western Hemisphere and presents tabular data, but the focus is on Mexico. During the period July 1981 to January 1982, the Lopez Portillo government in Mexico doubled the prices of Nova (regular leaded) gasoline and diesel fuel, and raised (premium unleaded) gasoline prices 43%. A few other countries increased prices moderately. The Mexican government justified the drastic increases, using the following rationale: (1) Mexico wastes a lot of energy, its use per unit of Gross Domestic Product more than double that of the industrialized countries; (2) during recent years gasoline consumption has run amuck, increasing 15% annually; and (3) the fuel price increases would not greatly impact the buying power of the Mexican people. The government explained that subsidizing fuel consumption cost PEMEX $12.5 billion during 1981. What hurt worst was the fact that selling a barrel of refined products within the country brings only 1/4 the money that a barrel of exported crude brings. Very little of the subsidy trickles down to lower classes, and 85% of the vehicular fuel is burned by 20% of the population. It is concluded that cheap energy is still risky business, even for major petroleum-exporting countries; further, Mexico may prove to be the point man, in the international movement to reduce domestic fuel subsidies. The petroleum product price/tax report and the hydrocarbon price series are updated for the Western Hemisphere countries.

Not Available

1982-02-02T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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
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221

A renewal theory approach to periodic copolymers with adsorption  

E-Print Network (OSTI)

We consider a general model of a heterogeneous polymer chain fluctuating in the proximity of an interface between two selective solvents. The heterogeneous character of the model comes from the fact that the monomer units interact with the solvents and with the interface according to some charges that they carry. The charges repeat themselves along the chain in a periodic fashion. The main question concerning this model is whether the polymer remains tightly close to the interface, a phenomenon called localization, or whether there is a marked preference for one of the two solvents, thus yielding a delocalization phenomenon. In this paper, we present an approach that yields sharp estimates for the partition function of the model in all regimes (localized, delocalized and critical). This, in turn, makes possible a precise pathwise description of the polymer measure, obtaining the full scaling limits of the model. A key point is the closeness of the polymer measure to suitable Markov renewal processes, Markov renewal theory being one of the central mathematical tools of our analysis.

Francesco Caravenna; Giambattista Giacomin; Lorenzo Zambotti

2005-07-08T23:59:59.000Z

222

REGULAR ARTICLE Maize yield and nutrition during 4 years after biochar  

E-Print Network (OSTI)

Sustainable biochar to mitigate global climate change: Supplementary information Dominic Woolf1 ................................................................................... 12 2.5 Biochar properties.......................................................................................................................... 14 2.6 Biochar soil application

Lehmann, Johannes

223

Topology optimization for the design of periodic microstructures composed of electromagnetic materials  

Science Conference Proceedings (OSTI)

Electromagnetic structures that incorporate certain structural periodicities are known to display special behavior when subjected to electromagnetic waves, and can be designed to have specific functions such as inhibiting the intrusion of electromagnetic ... Keywords: Electromagnetic field, Periodic boundary, Topology optimization

Tsuyoshi Nomura; Shinji Nishiwaki; Kazuo Sato; Koichi Hirayama

2009-02-01T23:59:59.000Z

224

Budgets of Divergent and Rotational Kinetic Energy during Two Periods of Intense Convection  

Science Conference Proceedings (OSTI)

Budgets of divergent and rotational components of kinetic energy (KD and KR) are investigated for two periods of intense convection. Derivations of the budget equations are presented for limited volumes in terms of VD and VR. The two periods ...

Dennis E. Buechler; Henry E. Fuelberg

1986-01-01T23:59:59.000Z

225

A Comparison of Three Prolonged Periods of Heavy Rainfall over the Hawaiian Islands  

Science Conference Proceedings (OSTI)

The anomalous circulation patterns during an unusually prolonged stormy-weather period in Hawaii from 19 February to 2 April 2006 are analyzed and are compared with those of two previously known prolonged heavy-rainfall periods (March 1951 and ...

I. M. Shiromani Jayawardena; Yi-Leng Chen; Andrew J. Nash; Kevin Kodama

2012-04-01T23:59:59.000Z

226

Attachment 4 Volume III Pricing Matrix for Phase-in Period.xls...  

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

Attachment 4 Volume III Pricing Matrix for Phase-in Period.xls&0; Attachment 4 Volume III Pricing Matrix for Phase-in Period.xls&0; Attachment 4 Volume III Pricing Matrix for...

227

A ~60 Myr periodicity is common to marine-87Sr/86Sr, fossil biodiversity, and large-scale sedimentation: what does the periodicity reflect?  

E-Print Network (OSTI)

We find that the marine 87Sr/86Sr record shows a significant periodicity of 59.3 \\pm 3 Myr. The 87Sr/86Sr record is 171{\\deg} \\pm 12{\\deg}out of phase with a 62 (\\pm 3) Myr periodicity previously reported in the record of marine-animal diversity. These periodicities are close to 58 (\\pm 4) Myr cycles found for the number of gap-bounded sedimentary carbonate packages of North America We propose that these periodicities reflect the operation of a periodic "pulse of the Earth" in large-scale, Earth processes. These may be linked to mantle or plate-tectonic events, possibly uplift, which affects Earth's climate and oceans, and so the geochemistry, sedimentation, and biodiversity of the marine realm. Alternately, they may be linked to oscillation of the solar system normal to the plane of the galaxy.

Melott, Adrian L; Petersen, K D; McArthur, John M

2012-01-01T23:59:59.000Z

228

DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD JUNE 1, 2001 THROUGH SEPTEMBER 30, 2001  

DOE Green Energy (OSTI)

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD JUNE 1, 2001 THROUGH SEPTEMBER 30, 2001

L.C. BROWN

2001-09-30T23:59:59.000Z

229

Direct Energy Conversion Fission Reactor for the period December 1, 1999 through February 29, 2000  

DOE Green Energy (OSTI)

OAK B135 Direct Energy Conversion Fission Reactor for the period December 1, 1999 through February 29, 2000

Brown, L.C.

2000-03-20T23:59:59.000Z

230

The solution of Cauchy's problem for the Toda lattice with limit periodic initial data  

Science Conference Proceedings (OSTI)

Cauchy's problem for Toda lattices with initial data equal to the sum of a periodic and a rapidly decreasing sequence is solved with the use of the inverse scattering method. A method allowing one to find a limit periodic solution of the Toda lattice from a known periodic solution is described. The existence and uniqueness of a limit periodic solution is proved. Bibliography: 17 titles.

Khanmamedov, A Kh [Baku State University, Baku (Azerbaijan)

2008-04-30T23:59:59.000Z

231

The geometry of the critically-periodic curves in the space of cubic polynomials  

E-Print Network (OSTI)

We provide an algorithm for computing the Euler characteristic of the curves $S_p$ in the space of cubic polynomials, consisting of all polynomials with a periodic critical point of period $p$. The curves were introduced in [Milnor, Bonifant-Kiwi-Milnor], and the algorithm applies the main results of [DeMarco-Pilgrim]. The output is shown for periods $p \\leq 26$.

DeMarco, Laura

2012-01-01T23:59:59.000Z

232

Periodicities in Solar Neutrino Flux Data from Sage and Gallex-Gno Detectors  

E-Print Network (OSTI)

We have used both the Date-Compensated Discrete Fourier Transform and Periodogram analysis of the monthly solar neutrino flux data from (1) SAGE detector during the period from 1st January 1990 to 31st December 2000; (2) SAGE detector during the period from April 1998 to December 2001; (3) GALLEX detector during the period from May 1991 to January 1997; (4) GNO detector during the period from May 1998 to December 2001; (5) GALLEX-GNO detector (Combined data) from May 1991 to December 2001 and (6) average of the data from GNO and SAGE detectors during the period from May 1998 to December 2001. (1) exhibits periodicity around 19, 24 and 80-85 months. (2) shows periodicity around 1.5 months. For (3) we observe periodicity around 1.6, 2.5 and 19 months. For (4) periodicity is seen around 1.4 and 3.4 months. (5) gives periodicity around 1.7 and 19 months while (6) shows periodicity around 1.8 and 2.2 months. We have found almost similar periods in the solar flares, sunspot data, solar proton data which indicates that the solar activity cycle is due to the pulsating character of nuclear energy generation inside the sun.

Koushik Ghosh; Probhas Raychaudhuri

2006-06-21T23:59:59.000Z

233

High-repetition-rate femtosecond optical parametric oscillator based on periodically poled lithium niobate  

E-Print Network (OSTI)

High-repetition-rate femtosecond optical parametric oscillator based on periodically poled lithium periodically poled lithium niobate is described. This optical parametric oscillator is continuously tunable American Institute of Physics. S0003-6951 97 04325-8 Periodically poled lithium niobate PPLN has emerged

Fejer, Martin M.

234

RESEARCH and RELATED BUDGET - SECTION A-B, BUDGET PERIOD 1  

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

SECTION A-B, BUDGET PERIOD 1 SECTION A-B, BUDGET PERIOD 1 *Budget Type: Project: *Name of Organization: *Budget Period: 1 Prefix *Last Name Suffix *Project Role Base Salary $ Cal. Months Acad. Months Sum. Months *Requested Salary ($) *Fringe Benefits ($) *Funds Requested ($) 1. Principal Investigator - $ - $ - $ - $ 2. - $ - $ - $ - $ 3. - $ - $ - $ - $ 4. - $ - $ - $ - $ 5. - $ - $ - $ - $ 6. - $ - $ - $ -

235

Public Comment Period Re-Opened for the Uranium Leasing Program PEIS |  

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

Public Comment Period Re-Opened for the Uranium Leasing Program Public Comment Period Re-Opened for the Uranium Leasing Program PEIS Public Comment Period Re-Opened for the Uranium Leasing Program PEIS May 28, 2013 - 5:37pm Addthis Public Comment Period Re-Opened for the Uranium Leasing Program PEIS The U.S. Department of Energy is re-opening the public comment period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement (Draft ULP PEIS, DOE/EIS-0472D). DOE made the Draft ULP PEIS available for public comment on March 15, 2013 (78 FR 16500). The public comment period for the Draft ULP PEIS originally was to end on May 16, 2013, and an extension to May 31, 2013 was announced on April 23, 2013 (78 FR 23926). In response to a public request for additional review time, DOE re-opens the public comment period, which will now close on July 1,

236

BLM Announces Second Extension of Public Comment Period for Draft Solar PEIS  

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

BLM Announces Second Extension of Public Comment Period for Draft Solar PEIS BLM Announces Second Extension of Public Comment Period for Draft Solar PEIS U.S. DEPARTMENT OF THE INTERIORBUREAU OF LAND MANAGEMENT NEWS RELEASE Release Date: 04/15/11 Contacts: David Quick, (202) 912-7413 BLM Announces Second Extension of Public Comment Period for Draft Solar PEIS The Bureau of Land Management (BLM) today announced a two-week extension of the public comment period for the Draft Solar Programmatic Environmental Impact Statement (Draft Solar PEIS), a joint effort with the Department of Energy. The agencies had previously provided for a 120-day public comment period on the Draft Solar PEIS. Because of numerous requests, the agencies are extending the comment period by an additional two weeks beyond April 16, 2011. The comment period will now run until May 2, 2011. No additional public meetings will be held during the

237

EIS-0305: Notice Extending the Public Scoping Period for the Environmental  

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

Notice Extending the Public Scoping Period for the Notice Extending the Public Scoping Period for the Environmental Impact Statement EIS-0305: Notice Extending the Public Scoping Period for the Environmental Impact Statement Transuranic Waste Treatment Facility at Oak Ridge, Tennessee The Department extends the public scoping period for a Transuranic Waste Treatment Facility at Oak Ridge, Tennessee. To ensure that the public has ample opportunity to provide comments since the public scoping meeting, the comment period is being extended until March 18, 1999. Notice of Intent To Prepare an Environmental Impact Statement for a Transuranic Waste Treatment Facility at Oak Ridge, Tennessee; Notice Extending the Public Scoping Period More Documents & Publications Audit Report: IG-0443 EIS-0309: Notice of Intent to Prepare a Site-Wide Environmental Impact

238

Attachment 4 Volume III Pricing Matrix for Phase-in Period.xls  

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

4 4 VOLUME III Logistics Services A-76 Study - Service Provider Price Offer for Phase in Period, Volume III. Service Provider Name: GSA Schedule Contract Number: Expiration Date of GSA Schedule Contract: Duration of Phase in Period: 9 Calendar Months Term of Performance Phase-In Period 10/01/2004 - 06/30/2005 Base Period Year One07/01/2005 - 06/30/2006 Year Two 07/01/2006 - 06/30/2007 Period Three 07/01/2007 - 09/30/2007 Option Period Year One 10/01/2007 - 09/30/2008 Year Two 10/01/2008 - 09/30/2009 1. PRIME SERVICE PROVIDER COMMERCIAL DISCOUNT ATO FEDERAL OR BASE LABOR PERCENTAGE COMMERCIAL PROPOSED TOTAL GSA LABOR RATE RATE/HOUR FROM GSA RATE BURDENED RATE HOURS PROPOSED COST 2. TEAM MEMBER (Subcontractor) COMMERCIAL DISCOUNT ATO FEDERAL OR BASE LABOR PERCENTAGE

239

EIS-0369: Notice of Public Comment Period Extension and Additional Public  

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

Notice of Public Comment Period Extension and Additional Notice of Public Comment Period Extension and Additional Public Meeting EIS-0369: Notice of Public Comment Period Extension and Additional Public Meeting Supplemental Yucca Mountain Rail Corridor and Rail Alignment The Department of Energy is now announcing an additional public meeting in Reno, Nevada and the public comment period also is being extended through December 12, 2006 for the Supplemental Yucca Mountain Rail Corridot and Rail Alignment Environmental Impact Statement. Notice of Public Comment Period Extension and Additional Public Meeting for the Supplemental Yucca Mountain Rail Corridot and Rail Alignment Environmental Impact Statement (DOE/EIS-0369) (November 2006 - 71 FR 65785) More Documents & Publications EIS-0250: Notice of Public Comment Period Extension and Additional Public

240

EIS-0426: Notice of Extension of Public Comment Period for the Draft  

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

EIS-0426: Notice of Extension of Public Comment Period for the EIS-0426: Notice of Extension of Public Comment Period for the Draft Site-Wide Environmental Impact Statement EIS-0426: Notice of Extension of Public Comment Period for the Draft Site-Wide Environmental Impact Statement In response to public comments and requests, the U.S. Department of Energy National Nuclear Security Administration Nevada Site Office is extending the public comment period for the Draft Site-wide Environmental Impact Statement for the Nevada National Security Site (NNSS) and Off-Site Locations in Nevada (DOE/EIS-0426). The formal comment period will close on December 2, 2011 rather than October 27, 2011. EIS-0426-DEIS-CommentExtension-2011.pdf EIS-0426-DEIS-NoticeofCommentExtension-2011.pdf More Documents & Publications EIS-0426: Notice of Extension of Comment Period

Note: This page contains sample records for the topic "4-year payback period" 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

EIS-0426: Notice of Extension of Public Comment Period for the Draft  

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

Public Comment Period for the Public Comment Period for the Draft Site-Wide Environmental Impact Statement EIS-0426: Notice of Extension of Public Comment Period for the Draft Site-Wide Environmental Impact Statement In response to public comments and requests, the U.S. Department of Energy National Nuclear Security Administration Nevada Site Office is extending the public comment period for the Draft Site-wide Environmental Impact Statement for the Nevada National Security Site (NNSS) and Off-Site Locations in Nevada (DOE/EIS-0426). The formal comment period will close on December 2, 2011 rather than October 27, 2011. EIS-0426-DEIS-CommentExtension-2011.pdf EIS-0426-DEIS-NoticeofCommentExtension-2011.pdf More Documents & Publications EIS-0426: Notice of Extension of Comment Period

242

Periodic windows distribution resulting from homoclinic bifurcations in the two-parameter space  

E-Print Network (OSTI)

Periodic solution parameters, in chaotic dynamical systems, form periodic windows with characteristic distribution in two-parameter spaces. Recently, general properties of this organization have been reported, but a theoretical explanation for that remains unknown. Here, for the first time we associate the distribution of these periodic windows with scaling laws based in fundamental dynamic properties. For the R\\"ossler system, we present a new scenery of periodic windows composed by multiple spirals, continuously connected, converging to different points along of a homoclinic bifurcation set. We show that the bi-dimensional distribution of these periodic windows unexpectedly follows scales given by the one-parameter homoclinic theory. Our result is a strong evidence that, close to homoclinic bifurcations, periodic windows are aligned in the two-parameter space.

Rene Orlando Medrano-T.; Iberê Luis Caldas

2010-12-10T23:59:59.000Z

243

How Many CVs are Crossing the Period Gap? A Test for the Disruption of Magnetic Braking  

E-Print Network (OSTI)

We apply population synthesis techniques to calculate the present day number of two types of white dwarf-main sequence star (WDMS) binaries within the cataclysmic variable period gap. The first are post-common envelope binaries with secondary stars that have masses between 0.17 and 0.36 Msun (gPCEBs), such that they will commence mass transfer within the period gap. The second type are systems that were CVs at some point in their past, but detached once they evolved down in orbital period to ~3 h as a consequence of disrupted magnetic braking, and are crossing the period gap via gravitational radiation (dCVs). Full population synthesis calculations are performed where we assume either constant, global values of the common envelope ejection efficiency, or consider the ejection efficiency as a function of secondary mass. Several forms of magnetic braking are also considered. We predict an excess of dCVs over gPCEBs within the period gap of ~4 to ~13 assuming an ejection efficiency between 0.1 and 0.6, and a flat initial mass ratio distribution. This excess is revealed as a prominent peak at the location of the period gap in the orbital period distribution of the combined gPCEB and dCV population. We suggest that if such a feature is observed in the orbital period distribution of an observed sample of short orbital period WDMS binaries, this would strongly corroborate the disruption of magnetic braking.

P. J. Davis; U. Kolb; B. Willems; B. T. Gänsicke

2008-05-30T23:59:59.000Z

244

Catalytic effects of period iv transition metal in the oxidation of biodiesel.  

E-Print Network (OSTI)

??CATALYTIC EFFECTS OF PERIOD IV TRANSITION METALS IN THE OXIDATION OF BIODIESEL BRADLEY R CLARK December 2011 Advisors: Dr. Steve Salley, Dr. Simon Ng, Dr.… (more)

Clark, Bradley

2012-01-01T23:59:59.000Z

245

An MILP approach to Multi-location, Multi-Period Equipment ...  

E-Print Network (OSTI)

Jun 24, 2013 ... Full period utilization—operating costs are charged as though the equipment has ..... production capability is determined by its availability (al.

246

A Low-Cost, High-Efficiency Periodic Flow Gas Turbine for Distributed Energy Generation  

SciTech Connect

The proposed effort served as a feasibility study for an innovative, low-cost periodic flow gas turbine capable of realizing efficiencies in the 39-48% range.

Dr. Adam London

2008-06-20T23:59:59.000Z

247

Geothermal R and D Project report for period April 1, 1976 to...  

Open Energy Info (EERE)

30, 1976 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal R and D Project report for period April 1, 1976 to June 30, 1976 Details Activities (1)...

248

A Fungal End to Coal in the Carboniferous Period? | U.S. DOE...  

Office of Science (SC) Website

A Fungal End to Coal in the Carboniferous Period? Biological and Environmental Research (BER) BER Home About BER Research Facilities Science Highlights Searchable Archive of BER...

249

EIS-0299: Notice of Extension of Comment Period for the Environmental...  

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

of Comment Period for the Environmental Impact Statement Proposed Production of Plutonium-238 for Use in Advanced Radioisotope Power Systems for Future Space Missions DOE is...

250

Wear of Zircaloy-4 Grid Straps Due to Fretting and Periodic Impact ...  

Science Conference Proceedings (OSTI)

Presentation Title, Wear of Zircaloy-4 Grid Straps Due to Fretting and Periodic ... Applicability of Lean Grade of Duplex Stainless Steels in Nuclear Power Plants.

251

Identification, Modelling and Prediction of Non-periodic Bursts in Workloads  

Science Conference Proceedings (OSTI)

Non-periodic bursts are prevalent in workloads of large scale applications. Existing workload models do not predict such non-periodic bursts very well because they mainly focus on repeatable base functions. We begin by showing the necessity to include ... Keywords: data management, distributed system, workload modeling, burst prediction

Mario Lassnig; Thomas Fahringer; Vincent Garonne; Angelos Molfetas; Miguel Branco

2010-05-01T23:59:59.000Z

252

Microsoft Word - Management Analysis Report 2008-2010 chairmanship Period.doc  

Science Conference Proceedings (OSTI)

Management Analysis Report for the two-year (2008-2010) chairmanship Period. Introduction and objectives: On May 16th, 2010, the two-year period for which we were elected to conduct the Latin American Section of the American Oil Chemists’ S

253

Program Director/Principal Investigator (Last, First, Middle): BUDGET FOR ENTIRE PROPOSED PROJECT PERIOD  

E-Print Network (OSTI)

PROJECT PERIOD DIRECT COSTS ONLY BUDGET CATEGORY TOTALS INITIAL BUDGET PERIOD (from Form Page 4) 2nd organization only. CONSULTANT COSTS EQUIPMENT SUPPLIES TRAVEL INPATIENT CARE COSTS OUTPATIENT CARE COSTS ALTERATIONS AND RENOVATIONS OTHER EXPENSES DIRECT CONSORTIUM/ CONTRACTUAL COSTS SUBTOTAL DIRECT COSTS (Sum

Bandettini, Peter A.

254

Transgenetic algorithm for the periodic mobile piston pump unit routing problem with continuous oil replenishment  

Science Conference Proceedings (OSTI)

This paper reports the application of a transgenetic algorithm to the periodic mobile piston pump unit routing problem with continuous oil replenishment, a complex problem that occurs in the exploitation of onshore oil fields. The transgenetic algorithms ... Keywords: continuous oil replenishment, evolutionary algorithm, mobile pumps, onshore oil fields, periodic mobile piston pump unit routing, piston pumps, routing, scheduling, transgenetic algorithms

Marco Cesar Goldbarg; Elizabeth Ferreira Gouvea Goldbarg; Herbert De Melo Duarte

2010-11-01T23:59:59.000Z

255

A modified particle swarm optimization algorithm for a single-machine scheduling problem with periodic maintenance  

Science Conference Proceedings (OSTI)

In this paper, a particle swarm optimization (PSO) algorithm is presented to solve the single-machine scheduling problem with periodic maintenance activities. The most important issue for applying PSO algorithm successfully to the addressed scheduling ... Keywords: Nonresumable jobs, Periodic maintenance, Single-machine scheduling

Chinyao Low; Chou-Jung Hsu; Chwen-Tzeng Su

2010-09-01T23:59:59.000Z

256

Optimal replacement period of a two-unit system with failure rate interaction and external shocks  

Science Conference Proceedings (OSTI)

In this article, a periodical replacement model for a two-unit system which is both subjected to failure rate interaction and external shocks will be presented. Without external shocks, each unit 1, whenever it fails, will act as an interior shock to ... Keywords: External shocks, Failure rate interaction, Periodical replacement policy, Two-unit system

Min-Tsai Lai; Ying-Chang Chen

2008-01-01T23:59:59.000Z

257

Choosing beacon periods to improve response times for wireless HTTP clients  

Science Conference Proceedings (OSTI)

The IEEE 802.11 wireless LAN standard power-saving mode (PSM) allows the network interface card (NIC) to periodically sleep between receiving data. In this paper, we show that 802.11 PSM performs poorly due to the fact that an access point is unable ... Keywords: beacon periods, wireless access

Suman Nath; Zachary Anderson; Srinivasan Seshan

2004-10-01T23:59:59.000Z

258

A Diagnosis of Unbalanced Flow in Upper Levels during the AYE-SESAME I Period  

Science Conference Proceedings (OSTI)

Terms of the balance equation were calculated at 300 mb to diagnose unbalanced flow in the upper troposphere both prior to and during a period of strong convection which took place during the AVE-SESAME I period. The sum of the balance equation ...

James T. Moore; William A. Abeling

1988-12-01T23:59:59.000Z

259

On the periodic variations of secondary cosmic rays and the geomagnetic Pc4 pulsations in BMAr  

E-Print Network (OSTI)

On the periodic variations of secondary cosmic rays and the geomagnetic Pc4 pulsations in BMAr I. M are accompanied by the geomagnetic Pc4 pulsations and have similar periodicity. The phenomenon was observed over of geomagnetic ®eld were observed simultaneously with apparent peri- odicity in the count rates of charged

Paris-Sud XI, Université de

260

Mirant: Summary of Monitored SO2 Concentrations During Periods of Highest  

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

Mirant: Summary of Monitored SO2 Concentrations During Periods of Mirant: Summary of Monitored SO2 Concentrations During Periods of Highest Impact Mirant: Summary of Monitored SO2 Concentrations During Periods of Highest Impact Docket No. EO-05-01: Tables showing a summary of monitored SO2 concentrations during periods of highest impact as well as ERMOD modeling results for SO2 scenarios. Mirant: Summary of Monitored SO2 Concentrations During Periods of Highest Impact More Documents & Publications Answer of Potomac Electric Power Company and PJM lnterconnection, L.L.C. to the October 6, 2005 motion filed by the Virginia Department of Environmental Quality Mirant Potomac, Alexandria, Virginia: Maximum Impacts Predicted by AERMOD-PRIME, Units 3, 1, 2 SO2 Case Mirant Potomac, Alexandria, Virginia: Maximum Impacts Predicted by

Note: This page contains sample records for the topic "4-year payback period" 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

EIS-0250: Notice of Public Comment Period Extension and Additional Public  

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

Public Comment Period Extension and Additional Public Comment Period Extension and Additional Public Meeting EIS-0250: Notice of Public Comment Period Extension and Additional Public Meeting Geologic Repository for the Disposal of Spent Nuclear Fuel and High-Level Radioactive Waste at Yucca Mountain, Nye County, NV Based on input from the public, DOE is now announcing an additional public meeting in Reno, Nevada. The public comment period also is being extended through December 12, 2006. Notice of Public Comment Period Extension and Additional Public Meeting on the Supplement to the Final Environmental Impact Statement for a Geologic Repository for the Disposal of Spent Nuclear Fuel and High-Level Radioactive Waste at Yucca Mountain, Nye County, Nevada, DOE/EIS-0250 (71 FR 65786) (November 2006) More Documents & Publications

262

EIS-0385: Notice to Extend the Public Scoping Period and Reschedule Public  

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

EIS-0385: Notice to Extend the Public Scoping Period and Reschedule EIS-0385: Notice to Extend the Public Scoping Period and Reschedule Public Scoping Meetings EIS-0385: Notice to Extend the Public Scoping Period and Reschedule Public Scoping Meetings Strategic Petroleum Reserve Due to the extraordinary circumstances created by Hurricane Katrina in the region where the proposed action and public scoping meetings will take place, DOE has extended the public scoping period and revised the dates and locations of the public scoping meetings originally announced in the Notice of Intent to Prepare an Environmental Impact Statement 70 FR 52088; September 1, 2005). DOE/EIS-0385, Department of Energy, Environmental Impact Statement: Site Selection for the Expansion of the Strategic Petroleum Reserve, Notice to Extend the Public Scoping Period and Reschedule Public Scoping Meetings, 70

263

Microsoft Word - PARS II Process Document - Close Period 2013-04-29 _FINAL_  

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

PARS II APM DepSec Monthly Report & Close Period, V-2013-04-29 Page 1 PARS II APM DepSec Monthly Report & Close Period, V-2013-04-29 Page 1 PARS II Process Document APM DEPSEC MONTHLY REPORT & CLOSE PERIOD PURPOSE The purpose of this document is to describe the process of preparing the APM Deputy Secretary Monthly Report and closing the DOE Reporting Period in PARS II. SCOPE This process applies to the Headquarters Office of Acquisition and Project Management (HQ OAPM) and its support contractors as the organization that prepares the monthly reports and closes the monthly reporting period. The process covers data validation and verification; running, distributing and archiving of reports; and

264

EIS-0387: Extension of Scoping Period for the Notice of Intent To Prepare a  

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

Extension of Scoping Period for the Notice of Intent To Extension of Scoping Period for the Notice of Intent To Prepare a Site-Wide Environmental Impact Statement EIS-0387: Extension of Scoping Period for the Notice of Intent To Prepare a Site-Wide Environmental Impact Statement Y-12 National Security Complex Project, Oak Ridge, Tennessee The National Nuclear Security Administration (NNSA), an agency within the U.S. Department of Energy (DOE), is extending the scoping period for the Site-Wide Environmental Impact Statement (SWEIS) for the Y-12 National Security Complex (Y-12), located at the junction of Bear Creek Road and Scarboro Road in Anderson County, Tennessee, near the City of Oak Ridge, Tennessee. National Nuclear Security Administration Extension of Scoping Period for the Notice of Intent To Prepare a Site-Wide Environmental Impact Statement,

265

EIS-0380: Notice to Extend Comment Period on the Draft Site-Wide  

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

to Extend Comment Period on the Draft Site-Wide to Extend Comment Period on the Draft Site-Wide Environmental Impact Statement EIS-0380: Notice to Extend Comment Period on the Draft Site-Wide Environmental Impact Statement Continued Operation of Los Alamos National Laboratory, Los Alamos, New Mexico In response to requests for additional time to review and comment on the document, NNSA is extending the public comment period until September 20, 2006. DOE/EIS-0380, Department of Energy, National Nuclear Security Administration, Extension of Comment Period on the Draft Site-Wide Environmental Impact Statement for Continued Operation of Los Alamos National Laboratory, Los Alamos, New Mexico, 76 FR 40352 (August 2006) More Documents & Publications EIS-0380: DOE Notice of Availability of the Draft Site-Wide Environmental

266

Proposed rule: re-opening of public comment period | Department of Energy  

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

Proposed rule: re-opening of public comment period Proposed rule: re-opening of public comment period Proposed rule: re-opening of public comment period Proposed rule: re-opening of public comment period. The U.S. Department of Energy (DOE) is re-opening the public comment period for proposed amendments to its regulations governing compliance with the National Environmental Policy Act (NEPA), made available for public comment on January 3, 2011 (76 FR 214). This is being done in response to a request on behalf of multiple organizations CX rulemaking files More Documents & Publications Public Comment Received on Proposed Revisions to DOE's NEPA Rule: 10 CFR Part 1021 Federal Register Notice: National Nuclear Security Administration Site-Wide Environmental Impact Statement for Sandia National Laboratories, New Mexico

267

EIS-0385: Notice to Extend the Public Scoping Period and Reschedule Public  

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

Notice to Extend the Public Scoping Period and Reschedule Notice to Extend the Public Scoping Period and Reschedule Public Scoping Meetings EIS-0385: Notice to Extend the Public Scoping Period and Reschedule Public Scoping Meetings Strategic Petroleum Reserve Due to the extraordinary circumstances created by Hurricane Katrina in the region where the proposed action and public scoping meetings will take place, DOE has extended the public scoping period and revised the dates and locations of the public scoping meetings originally announced in the Notice of Intent to Prepare an Environmental Impact Statement 70 FR 52088; September 1, 2005). DOE/EIS-0385, Department of Energy, Environmental Impact Statement: Site Selection for the Expansion of the Strategic Petroleum Reserve, Notice to Extend the Public Scoping Period and Reschedule Public Scoping Meetings, 70

268

Department of Energy Extends Comment Period on Proposed Revisions to its  

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

Extends Comment Period on Proposed Revisions Extends Comment Period on Proposed Revisions to its NEPA Rules Department of Energy Extends Comment Period on Proposed Revisions to its NEPA Rules February 17, 2011 - 5:29pm Addthis The Department of Energy today announced that, in response to requests from a number of parties, it has re-opened the public comment period on its proposed revisions to the Department's NEPA rules. The public comment period will be extended three weeks and will now close on March 7, 2011. DOE, on January 3, 2011, issued a Notice of Proposed Rulemaking to amend its regulations governing compliance with the National Environmental Policy Act (NEPA). The proposals focus primarily on the Department's categorical exclusion provisions, and reflect the first update to these provisions in

269

EIS-0299: Notice of Extension of Comment Period for the Environmental  

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

9: Notice of Extension of Comment Period for the 9: Notice of Extension of Comment Period for the Environmental Impact Statement EIS-0299: Notice of Extension of Comment Period for the Environmental Impact Statement Proposed Production of Plutonium-238 for Use in Advanced Radioisotope Power Systems for Future Space Missions DOE is extending the public scoping period on the environmental impact statement (EIS) for the Proposed Production of Plutonium-238 for Use in Advanced Radioisotope Power Systems for Future Space Missions from November 4, 1998, to January 4, 1999. Notice of Extension of Comment Period for the Environmental Impact Statement on the Proposed Production of Plutonium-238 for Use in Advanced Radioisotope Power Systems for Future Space Missions, DOE/EIS-0299 (November 1998) (63 FR 59551) More Documents & Publications

270

OPTIMAL AND APPROXIMATE POLICIES FOR PERIODIC REVIEW INVENTORY SYSTEMS: THE CASE OF ORDER CROSSOVER AND MULTIPLE SUPPLY OPTIONS.  

E-Print Network (OSTI)

??This dissertation explores two main topics within the area of periodic review inventory systems. These are: (1) periodic review inventory systems under order crossover and… (more)

Srinivasan, Mahesh

2007-01-01T23:59:59.000Z

271

Quasi-Fixed Points and Periodic Orbits in the Zebiak–Cane ENSO Model with Applications in Kalman Filtering. Part II. Periodic Orbits  

Science Conference Proceedings (OSTI)

In Part II of this study on the application of the interactive Kalman filter to higher-dimensional systems, a modification suited to periodically forced systems is introduced. As in Part I, the object of study here is the ENSO model of Zebiak and ...

Gerd Bürger; Stephen E. Zebiak; Mark A. Cane

1995-09-01T23:59:59.000Z

272

Black and white: a portrayal of gender roles in American women's periodicals during the Eisenhour years  

E-Print Network (OSTI)

This thesis examines how the media portrayed gender roles in periodical articles from 1953 to 1961. Magazines researched were those most widely read by white and black women. The purpose is to compare and contrast the views of white and black females concerning domesticity, education, career, children, sex, communism, and civil rights. This research found that periodicals promoted domesticity for white women between 1953 and 1957, and then became more interested writing about education and careers outside the home. On the other hand, periodicals aimed at African American women wrote about education and careers until 1957, and then began writing more about domesticity.

McGaugh, Emily Cozette

1996-01-01T23:59:59.000Z

273

RIEGER-TYPE PERIODICITY IN THE OCCURRENCE OF SOLAR TYPE III RADIO BURSTS  

Science Conference Proceedings (OSTI)

This Letter presents the first observations of a Rieger-type periodicity with the period of 156{sub -9}{sup +19} days in the occurrence rate of solar coronal type III radio bursts. The periodicity was detected during the time interval from 2000 June 22 to 2003 December 31. This interval partially contains the maximum and the declining phase of solar cycle 23. The radio spectra were provided by the Learmonth Solar Radio Observatory in Western Australia, part of the USAF Radio Solar Telescope Network.

Lobzin, V. V.; Cairns, Iver H.; Robinson, P. A. [School of Physics, University of Sydney, NSW 2006 (Australia)

2012-08-01T23:59:59.000Z

274

Do Periodicities in Extinction -- with Possible Astronomical Connections -- Survive a Revision of the Geological Timescale?  

E-Print Network (OSTI)

A major revision of the geological timescale was published in 2012. We re-examine our past finding of a 27 Myr periodicity in marine extinction rates by re-assigning dates to the extinction data used previously. We find that the spectral power at this period is somewhat increased, and persists at a narrow bandwidth, which supports our previous contention that the Nemesis hypothesis is untenable as an explanation for the periodicity that was first noted by Raup and Sepkoski in the 1980s. We enumerate a number of problems in a recent study comparing extinction rates with time series models.

Melott, Adrian L

2013-01-01T23:59:59.000Z

275

EIS-0374: Notice of Extension of Comment Period | Department of Energy  

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

74: Notice of Extension of Comment Period 74: Notice of Extension of Comment Period EIS-0374: Notice of Extension of Comment Period Klondike III/Biglow Canyon Wind Integration Project This notice extends the close of comment for scoping from the previously published May 13, 2005 to January 5, 2006. Bonneville Power Administration (BPA) is preparing its Klondike III/Biglow Canyon Wind Integration EIS under the National Environmental Policy Act (NEPA). BPA is currently considering a proposed interconnection requested by PPM Energy, Inc. (PPM), to integrate electrical power from their proposed Klondike III Wind Project into the Federal Columbia River Transmission System (FCRTS). Bonneville Power Administration Klondike III/Biglow Canyon Wind Integration Project Notice of Comment Period, DOE/EIS-0374 (December 2005 - 70 FR

276

EIS-0388: Extension of Scoping Period for the Notice of Intent to Prepare  

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

8: Extension of Scoping Period for the Notice of Intent to 8: Extension of Scoping Period for the Notice of Intent to Prepare an Environmental Impact Statement EIS-0388: Extension of Scoping Period for the Notice of Intent to Prepare an Environmental Impact Statement Operation of a Biosafety Level 3 Facility at Los Alamos National Laboratory, Los Alamos, New Mexico National Nuclear Security Administration Extension of Scoping Period for the Notice of Intent to Prepare an Environmental Impact Statement for the Operation of a Biosafety Level 3 Facility at Los Alamos National Laboratory, Los Alamos, New Mexico, DOE/EA-0388 (December 2005) 70 FR 77379 More Documents & Publications EIS-0388: Notice of Intent to Prepare an Environmental Impact Statement EIS-0380: Notice of Intent to Prepare a Supplemental Environmental Impact

277

Water Vapor Transfer over the Southwest Pacific: Mean Patterns and Variations during Wet and Dry Periods  

Science Conference Proceedings (OSTI)

The mean water vapor transfer of the Southwest Pacific, as determined from radiosonde records near the 170°E meridional transect, is computed for the 1960–73 period. Emphasis is placed on defining average patterns, then examining variations that ...

M. M. Khatep; B. B. Fitzharris; W. E. Bardsley

1984-10-01T23:59:59.000Z

278

A variational level set approach for surface area minimization of triply-periodic surfaces  

Science Conference Proceedings (OSTI)

In this paper, we study triply-periodic surfaces with minimal surface area under a constraint in the volume fraction of the regions (phases) that the surface separates. Using a variational level set method formulation, we present a theoretical characterization ...

Y. Jung; K. T. Chu; S. Torquato

2007-05-01T23:59:59.000Z

279

Evolution with size in a locally periodic system: Scattering and deterministic maps  

E-Print Network (OSTI)

In this paper we study the evolution of the wave function with the system size in a locally periodic structure. In particular we analyse the dependence of the wave function with the number of unit cells, which also reflects information about its spatial behaviour in the system. We reduce the problem to a nonlinear map and find an equivalence of its energy regions of single periodicity and of weak chaos, with the forbidden and allowed bands of the fully periodic system, respectively. At finite size the wave function decays exponentially with system size, as well as in space, when the energy lies inside a region of single periodicity, while for energies in the weak chaotic region never decays. At the transition between those regions the wave function still decays but in a $q$-exponential form; we found that the decay length is a half of the mean free path, which is larger than the lattice constant.

V. Dominguez-Rocha; M. Martinez-Mares

2013-04-11T23:59:59.000Z

280

EIS-0374: Notice of Extension of Comment Period | Department of Energy  

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

Notice of Extension of Comment Period Notice of Extension of Comment Period EIS-0374: Notice of Extension of Comment Period Klondike III/Biglow Canyon Wind Integration Project This notice extends the close of comment for scoping from the previously published May 13, 2005 to January 5, 2006. Bonneville Power Administration (BPA) is preparing its Klondike III/Biglow Canyon Wind Integration EIS under the National Environmental Policy Act (NEPA). BPA is currently considering a proposed interconnection requested by PPM Energy, Inc. (PPM), to integrate electrical power from their proposed Klondike III Wind Project into the Federal Columbia River Transmission System (FCRTS). Bonneville Power Administration Klondike III/Biglow Canyon Wind Integration Project Notice of Comment Period, DOE/EIS-0374 (December 2005 - 70 FR

Note: This page contains sample records for the topic "4-year payback period" 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

DOE Extends Comment Period on Notice of Inquiry Under the Energy  

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

Notice of Inquiry Under the Energy Notice of Inquiry Under the Energy Independence and Security Act DOE Extends Comment Period on Notice of Inquiry Under the Energy Independence and Security Act August 18, 2010 - 4:33pm Addthis Today, in response to a formal request, General Counsel Scott Blake Harris approved a 30-day extension of the public comment period on DOE's Notice of Inquiry (75 FR 43945) soliciting comment on the development of regulations to carry out section 934 of the Energy Independence and Security Act of 2007, which implements the Convention on Supplementary Compensation for Nuclear Damage. The public comment period will be extended to October 27, 2010. The signed extension which is provided here, will be published shortly in the Federal Register. Addthis Related Articles DOE Extends Comment Period on Notice of Inquiry Under the Energy

282

Geothermal R and D Project report for period April 1, 1976 to June 30, 1976  

Open Energy Info (EERE)

report for period April 1, 1976 to June 30, 1976 report for period April 1, 1976 to June 30, 1976 Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geothermal R and D Project report for period April 1, 1976 to June 30, 1976 Details Activities (1) Areas (1) Regions (0) Abstract: Progress during April to July 1976 in research on geothermal energy is reported. The experiments are performed in the Raft River Valley, Idaho, a hydrothermal resource site with water temperatures below 150/sup 0/C. During this period, a third well, RRGE-3 was drilled and well production was tested, testing of a direct contact heat exchanger continued, design and cost estimating continued on a 40 MW (th) organic-binary heat exchange facility, agricultural studies of irrigation with geothermal water progressed, and down-hole data was obtained from

283

EA-1592: Extension of Comment Period of the Draft Environmental Assessment  

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

Extension of Comment Period of the Draft Environmental Extension of Comment Period of the Draft Environmental Assessment EA-1592: Extension of Comment Period of the Draft Environmental Assessment Modernization of Facilities and Infrastructure for the Non-Nuclear Production Activities Conducted at the Kansas City Plant In the interest of maximizing public participation, GSA and NNSA are extending the public comment period until Wednesday, January 30, 2008. The United States General Services Administration (GSA) and the United States Department of Energy's National Nuclear Security Administration (NNSA) will prepare an Environmental Assessment (EA), DOE/EA-1592, to relocate certain non-nuclear component production and procurement activities currently conducted at NNSA's Kansas City Plant (KCP) to a smaller new

284

EIS-0350-S1: Extension of the Public Review and Comment Period and  

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

Extension of the Public Review and Comment Period and Extension of the Public Review and Comment Period and Announcement of an Additional Public Hearing EIS-0350-S1: Extension of the Public Review and Comment Period and Announcement of an Additional Public Hearing Nuclear Facility Portion of the Chemistry and Metallurgy Research Building Replacement Project at Los Alamos National Laboratory, Los Alamos, New Mexico DOE/EIS-0350, Department of Energy, National Nuclear Security Administration Extension of the Public Review and Comment Period and Announcement of an Additional Public Hearing for the Draft Supplemental Environmental Impact Statement for the Nuclear Facility Portion of the Chemistry and Metallurgy Research Building Replacement Project at Los Alamos National Laboratory, Los Alamos, New Mexico, 76 FR 28222 (May 2011)

285

New periodic variable stars coincident with ROSAT sources discovered using SuperWASP  

E-Print Network (OSTI)

We present optical lightcurves of 428 periodic variable stars coincident with ROSAT X-ray sources, detected using the first run of the SuperWASP photometric survey. Only 68 of these were previously recognised as periodic variables. A further 30 of these objects are previously known pre-main sequence stars, for which we detect a modulation period for the first time. Amongst the newly identified periodic variables, many appear to be close eclipsing binaries, their X-ray emission is presumably the result of RS CVn type behaviour. Others are probably BY Dra stars, pre-main sequence stars and other rapid rotators displaying enhanced coronal activity. A number of previously catalogued pulsating variables (RR Lyr stars and Cepheids) coincident with X-ray sources are also seen, but we show that these are likely to be misclassifications. We identify four objects which are probable low mass eclipsing binary stars, based on their very red colour and light curve morphology.

A. J. Norton; P. J. Wheatley; R. G. West; C. A. Haswell; R. A. Street; A. Collier Cameron; D. J. Christian; B. Enoch; M. Gallaway; C. Hellier; K. Horne; J. Irwin; S. R. Kane; T. A. Lister; J. P. Nicholas; N. Parley; D. Pollacco; R. Ryans; I. Skillen; D. M. Wilson

2007-02-23T23:59:59.000Z

286

New periodic variable stars coincident with ROSAT sources discovered using SuperWASP  

E-Print Network (OSTI)

We present optical lightcurves of 428 periodic variable stars coincident with ROSAT X-ray sources, detected using the first run of the SuperWASP photometric survey. Only 68 of these were previously recognised as periodic variables. A further 30 of these objects are previously known pre-main sequence stars, for which we detect a modulation period for the first time. Amongst the newly identified periodic variables, many appear to be close eclipsing binaries, their X-ray emission is presumably the result of RS CVn type behaviour. Others are probably BY Dra stars, pre-main sequence stars and other rapid rotators displaying enhanced coronal activity. A number of previously catalogued pulsating variables (RR Lyr stars and Cepheids) coincident with X-ray sources are also seen, but we show that these are likely to be misclassifications. We identify four objects which are probable low mass eclipsing binary stars, based on their very red colour and light curve morphology.

Norton, A J; West, R G; Haswell, C A; Street, R A; Cameron, A C; Christian, D J; Enoch, B; Gallaway, M; Hellier, C; Horne, K; Irwin, J; Kane, S R; Lister, T A; Nicholas, J P; Parley, N; Pollacco, D; Ryans, R; Skillen, I; Wilson, D M

2007-01-01T23:59:59.000Z

287

Inactive Period of Western North Pacific Tropical Cyclone Activity in 1998–2011  

Science Conference Proceedings (OSTI)

Tropical cyclone (TC) activity over the western North Pacific (WNP) exhibits a significant interdecadal variation during 1960–2011, with two distinct active and inactive periods each. This study examines changes in TC activity and atmospheric ...

Kin Sik Liu; Johnny C. L. Chan

2013-04-01T23:59:59.000Z

288

Identifying Periodic Components in Atmospheric Data Using a Family of Minimum Variance Spectral Estimators  

Science Conference Proceedings (OSTI)

This work describes the application of a recently developed signal processing technique for identifying periodic components in the presence of unknown colored noise. Specifically, the application of this technique to the identification of ...

Christopher K. Wikle; Peter J. Sherman; Tsing-Chang Chen

1995-10-01T23:59:59.000Z

289

Numerical Studies of Cyclogenesis Events during the Second Intensive Observation Period (IOP-2) of GALE  

Science Conference Proceedings (OSTI)

A research version of the Navy Operational Regional Atmospheric Prediction System (NORAPS) is used to study cyclogenesis events during the second Intensive Observation Period of the Genesis of Atlantic Lows Experiment (GALE). From 1200 UTC 26 ...

Chi-Sann Liou; Carlyle H. Wash; Stacey M. Heikkinen; Russell L. Elsberry

1990-02-01T23:59:59.000Z

290

Enhancement of ARM Surface Meteorological Observations during the Fall 1996 Water Vapor Intensive Observation Period  

Science Conference Proceedings (OSTI)

This work describes in situ moisture sensor comparisons that were performed in conjunction with the first Water Vapor Intensive Observation Period (IOP) conducted at the Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) ...

Scott J. Richardson; Michael E. Splitt; Barry M. Lesht

2000-03-01T23:59:59.000Z

291

Eta Model Precipitation Forecasts for a Period Including Tropical Storm Allison  

Science Conference Proceedings (OSTI)

A step-mountain (eta) coordinate limited-area model is being developed at the National Meteorological Center (NMC) to improve forecasts of severe weather and other mesoscale phenomena. Precipitation forecasts are reviewed for the 20-day period 16 ...

Fedor Mesinger; Thomas L. Black; David W. Plummer; John H. Ward

1990-09-01T23:59:59.000Z

292

Quasi-Periodicity in global solar radio flux at metric wavelengths during Noise Storms  

E-Print Network (OSTI)

We present observational results from studying the quasi-periodicities in global solar radio flux during periods of enhanced noise storm activity, over durations of ~4 hrs a day ("intra-day" variations), observed at 77.5 MHz with the newly commissioned log-periodic array tracking system at the Gauribidanur radio observatory. Positional information on the storm centers were obtained with the radio imaging data from the Nancay (sic.) Radioheliograph (NRH), while their active region (AR) counterparts on the photosphere (and the overlying chromosphere) were located from the H-alpha images of the Big Bear Solar Observatory (BBSO). The quasi-periodicity in flux was found to be 110 minutes, with the fluctuation in flux being 3(+/- 1.5) solar flux units (sfu). The results of such pulsations are interpreted qualitatively as evidence for coronal seismology.

G. A. Shanmugha Sundaram; K. R. Subramanian

2004-04-13T23:59:59.000Z

293

Quasi-Periodicity in global solar radio flux at metric wavelengths during Noise Storms  

E-Print Network (OSTI)

We present observational results from studying the quasi-periodicities in global solar radio flux during periods of enhanced noise storm activity, over durations of ~4 hrs a day ("intra-day" variations), observed at 77.5 MHz with the newly commissioned log-periodic array tracking system at the Gauribidanur radio observatory. Positional information on the storm centers were obtained with the radio imaging data from the Nancay (sic.) Radioheliograph (NRH), while their active region (AR) counterparts on the photosphere (and the overlying chromosphere) were located from the H-alpha images of the Big Bear Solar Observatory (BBSO). The quasi-periodicity in flux was found to be 110 minutes, with the fluctuation in flux being 3(+/- 1.5) solar flux units (sfu). The results of such pulsations are interpreted qualitatively as evidence for coronal seismology.

Subramanian, K R

2004-01-01T23:59:59.000Z

294

Quasi-Periodicity in global solar radio flux at metric wavelengths during Noise Storms.  

E-Print Network (OSTI)

Abstract. We present observational results from studying the quasi-periodicities in global solar radio flux during periods of enhanced noise storm activity, over durations of ? 4 hrs a day ( ”intra-day ” variations), observed at 77.5 MHz with the newly commissioned log-periodic array tracking system at the Gauribidanur radio observatory. Positional information on the storm centers were obtained with the radio imaging data from the Nançay RadioHeliograph ( NRH), while their active region ( AR) counterparts on the photosphere ( and the overlying chromosphere) were located from the H? images of the Big Bear Solar Observatory ( BBSO). The quasi-periodicity in flux was found to be 110 minutes, with the fluctuation in flux being 3(±1.5) solar flux units ( sfu). The results of such pulsations are interpreted qualitatively as evidence for coronal seismology.

unknown authors

2004-01-01T23:59:59.000Z

295

The influence of rest period instructions on the default mode network  

E-Print Network (OSTI)

The default mode network (DMN) refers to regional brain activity that is greater during rest periods than during attention-demanding tasks; many studies have reported DMN alterations in patient populations. It has also ...

Benjamin, Christopher

296

CO2 Abatement in the UK Power Sector: Evidence from the EU ETS Trial Period  

E-Print Network (OSTI)

This paper provides an empirical assessment of CO2 emissions abatement in the UK power sector during the trial period of the EU ETS. Using an econometrically estimated model of fuel switching, it separates the impacts of ...

Ellerman, A. Denny

2008-01-01T23:59:59.000Z

297

Formation and Quasi-Periodic Behavior of Outer Spiral Rainbands in a Numerically Simulated Tropical Cyclone  

Science Conference Proceedings (OSTI)

The formation and quasi-periodic behavior of outer spiral rainbands in a tropical cyclone simulated in the cloud-resolving tropical cyclone model version 4 (TCM4) are analyzed. The outer spiral rainbands in the simulation are preferably initiated ...

Qingqing Li; Yuqing Wang

2012-03-01T23:59:59.000Z

298

A NEW TIMESCALE FOR PERIOD CHANGE IN THE PULSATING DA WHITE DWARF WD 0111+0018  

SciTech Connect

We report the most rapid rate of period change measured to date for a pulsating DA (hydrogen atmosphere) white dwarf (WD), observed in the 292.9 s mode of WD 0111+0018. The observed period change, faster than 10{sup -12} s s{sup -1}, exceeds by more than two orders of magnitude the expected rate from cooling alone for this class of slow and simply evolving pulsating WDs. This result indicates the presence of an additional timescale for period evolution in these pulsating objects. We also measure the rates of period change of nonlinear combination frequencies and show that they share the evolutionary characteristics of their parent modes, confirming that these combination frequencies are not independent modes but rather artifacts of some nonlinear distortion in the outer layers of the star.

Hermes, J. J.; Montgomery, M. H.; Winget, D. E. [Department of Astronomy, University of Texas at Austin, Austin, TX - 78712 (United States)] [Department of Astronomy, University of Texas at Austin, Austin, TX - 78712 (United States); Mullally, Fergal [SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, CA 94043 (United States)] [SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, CA 94043 (United States); Bischoff-Kim, A., E-mail: jjhermes@astro.as.utexas.edu [Chemistry, Physics and Astronomy Department, Georgia College and State University, Milledgeville, GA 31061 (United States)

2013-03-20T23:59:59.000Z

299

Residual Sediment Fluxes in Weakly-to-Periodically Stratified Estuaries and Tidal Inlets  

Science Conference Proceedings (OSTI)

In this idealized numerical modeling study, the composition of residual sediment fluxes in energetic (e.g., weakly or periodically stratified) tidal estuaries is investigated by means of one-dimensional water column models, with some focus on the ...

Hans Burchard; Henk M. Schuttelaars; W. Rockwell Geyer

2013-09-01T23:59:59.000Z

300

Cloud, Surface Temperature, and Outgoing Longwave Radiation for the Period from 1979 to 1990  

Science Conference Proceedings (OSTI)

Quasi-biennial global, midlatitude, and tropical oscillations were observed using top-of-the-atmosphere outgoing longwave radiation (OLR), surface air temperature (SAT), and cloud amount for the period from 1979 to 1989. The in-phase quasi-...

H. Lee Kyle; Mitchell Weiss; Philip Ardanuy

1995-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Correction of Humidity Bias for Vaisala RS80-A Sondes during the AMMA 2006 Observing Period  

Science Conference Proceedings (OSTI)

During the African Monsoon Multidisciplinary Analyses (AMMA) program, which included a special observing period that took place over West Africa in 2006, a major effort was devoted to monitor the atmosphere and its water cycle. The radiosonde ...

Mathieu Nuret; Jean-Philippe Lafore; Françoise Guichard; Jean-Luc Redelsperger; Olivier Bock; Anna Agusti-Panareda; Jean-Blaise N’Gamini

2008-11-01T23:59:59.000Z

302

On the Linear Relationship between Loop Current Retreat Latitude and Eddy Separation Period  

Science Conference Proceedings (OSTI)

A linear correlation exists between the retreat latitude of the Loop Current following eddy separation and the subsequent eddy separation period. This empirical relationship was first identified in satellite altimeter-derived Loop Current ...

Alexis Lugo-Fernández; Robert R. Leben

2010-12-01T23:59:59.000Z

303

Observations of 20-Day Period Meridional Current Oscillations in the Upper Ocean along the Pacific Equator  

Science Conference Proceedings (OSTI)

Prominent oscillations of the meridional current, with a mean period of approximately 20 days, have been observed in the upper ocean over several years from May 1979 to October 1985 using moored current measurements along the Pacific equator at ...

David Halpern; Robert A. Knox; Douglas S. Luther

1988-11-01T23:59:59.000Z

304

A first-overtone RR Lyrae star with cyclic period changes  

E-Print Network (OSTI)

A detailed light curve analysis is presented for a first-overtone RR Lyrae star, MACHO* J050918.712-695015.31, based on MACHO and OGLE-III observations. As a foreground object of the Large Magellanic Cloud, it gives an extraordinary opportunity to study an almost continuous, 12-year long dataset of a relatively bright (V~15.0 mag) RRc star with rapid period change. Cyclic period modulation is suggested by the O-C method, where the cycle length is about 8 years. With the available unique dataset, we could draw strong limits on other light curve changes that may be associated to the period modulation. We could exclude both multiple periodicity and amplitude modulation unambiguously. Any theoretical model should reproduce the observed lack of photometric modulations. Simple arguments are also given for possible hydromagnetic effects.

A. Derekas; L. L. Kiss; A. Udalski; T. R. Bedding; K. Szatmary

2004-07-20T23:59:59.000Z

305

Influence of Choice of Time Period on Global Surface Temperature Trend Estimates  

Science Conference Proceedings (OSTI)

Annual global surface temperature and global land surface temperature trends are calculated for all possible periods of the historical record between 1850 and 2009. Two-dimensional parameter diagrams show the critical influence of the choice of ...

Brant Liebmann; Randall M. Dole; Charles Jones; Ileana Bladé; Dave Allured

2010-11-01T23:59:59.000Z

306

Periodic orbit bifurcations as an ionization mechanism: The bichromatically driven hydrogen atom  

E-Print Network (OSTI)

We investigate the multiphoton ionization of hydrogen driven by a strong bichromatic microwave field. In a regime where classical and quantum simulations agree, periodic orbit analysis captures the mechanism: Through the linear stability of periodic orbits we match qualitatively the variation of experimental ionization rates with control parameters such as the amplitudes of the two modes of the field or their relative phases. Moreover, we discuss an empirical formula which reproduces quantum simulations to a high degree of accuracy. This quantitative agreement shows the mechanism by which short periodic orbits organize the dynamics in multiphoton ionization. We also analyze the effect of longer pulse durations. Finally we compare our results with those based on the peak amplitude rule. Both qualitative and quantitative analyses are implemented for different mode locked fields. In parameter space, the localization of the period doubling and halving allows one to predict the set of parameters (amplitudes and phase lag) where ionization occurs.

S. Huang; C. Chandre; T. Uzer

2007-08-09T23:59:59.000Z

307

Mediterraneità and modernità : architecture and culture during the period of Italian colonization of North Africa  

E-Print Network (OSTI)

This dissertation examines the intersection of the modern and the colonial in architecture and culture during the period of Italian colonization of North Africa from 1911 to 1943. Rather than see the colonies as merely a ...

McLaren, Brian L. (Brian Lloyd), 1958-

2001-01-01T23:59:59.000Z

308

The modeling power of the periodic event scheduling problem: railway timetables-and beyond  

Science Conference Proceedings (OSTI)

In the planning process of railway companies, we propose to integrate important decisions of network planning, line planning, and vehicle scheduling into the task of periodic timetabling. From such an integration, we expect to achieve an additional potential ...

Christian Liebchen; Rolf H. Möhring

2004-06-01T23:59:59.000Z

309

An Eulerian Model of Dispersion in the Convective Boundary Layer Using Explicit Periodic Advections  

Science Conference Proceedings (OSTI)

The authors have developed a relatively simple, first-order closure, Eulerian diffusion model, in which turbulent coherent structures of the convective boundary layer are explicitly included as periodic velocities imposed on a stationary and ...

John J. Carroll; Ming Liu

1995-11-01T23:59:59.000Z

310

An Analysis of Mesoscale Transport Phenomena during the Evening Transition Period near Sacramento, California  

Science Conference Proceedings (OSTI)

An analytical study of transport phenomena during the evening transition period in the vicinity of Sacramento, California is presented. The study is based on a network of double-theodolite wind stations, aircraft soundings and micrometeorological ...

L. O. Myrup; D. L. Morgan; R. Boomer

1986-04-01T23:59:59.000Z

311

Modeling Return Periods of Tropical Cyclone Intensities in the Vicinity of Hawaii  

Science Conference Proceedings (OSTI)

Tropical cyclones in the vicinity of Hawaii have resulted in great property damage. An estimate of the return periods of tropical cyclone intensities is of particular interest to governments, public interest groups, and private sectors.

Pao-Shin Chu; Jianxin Wang

1998-09-01T23:59:59.000Z

312

Analysis of Tracer Data Collected during the SCCCAMP 1985 Intensive Measurement Periods  

Science Conference Proceedings (OSTI)

This paper contains an analysis of data obtained from measurements of the concentration of tracer gases released during the four intensive measurement periods of the 1985 South-Central Coast Cooperative Air Monitoring Program (SCCCAMP). These ...

David G. Strimaitis; Gary E. Moore; Sharon G. Douglas

1991-05-01T23:59:59.000Z

313

Numerical Simulation of a 4-Day Early Spring Storm Period in the Black Hills  

Science Conference Proceedings (OSTI)

This paper illustrates the potential for mesoscale models to depict the distribution of precipitation in orographic situations. The study covers a 4-day time period in April 1995. The domain of the numerical model covers much of western South ...

R. D. Farley; D. L. Hjermstad; H. D. Orville

2000-08-01T23:59:59.000Z

314

Neural networks based multiplex forecasting system of the end-point of copper blow period  

Science Conference Proceedings (OSTI)

The neural network and the experiential evaluation method are introduced into the industrial converting process forecast, and a multiplex forecast system is proposed at the end-point of copper blow period in a matte converting process. The fuzzy clustering ...

Lihua Xue; Hongzhong Huang; Yaohua Hu; Zhangming Shi

2005-05-01T23:59:59.000Z

315

DOE Extends Public Comment Period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement  

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

The U.S. Department of Energy (DOE) today announced that the public comment period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement (ULP PEIS) has been extended to May 31, 2013.

316

Modeling the Surface Energy Budget during the Thawing Period of the 2006 Montreal Urban Snow Experiment  

Science Conference Proceedings (OSTI)

The Montreal Urban Snow Experiment was dedicated to furthering the understanding of micrometeorological processes involved in the late winter–early spring transition period in a Canadian city. A surface energy budget (SEB) measurement site was ...

Sylvie Leroyer; Jocelyn Mailhot; Stéphane Bélair; Aude Lemonsu; Ian B. Strachan

2010-01-01T23:59:59.000Z

317

A Method for Estimating Crop Losses from Hail in Uninsured Periods and Regions  

Science Conference Proceedings (OSTI)

The insurance industry, insurance regulatory bodies, and scientists investigating climate change all desire long records of hail losses. Existing loss records for some states cover the 1948–present period; this span is helpful but is not long ...

David Changnon; Stanley A. Changnon; Suzy S. Changnon

2001-01-01T23:59:59.000Z

318

EIS-0466: Re-opening of Public Scoping Period and Announcement of  

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

Re-opening of Public Scoping Period and Announcement of Re-opening of Public Scoping Period and Announcement of Additional Public Scoping Meetings EIS-0466: Re-opening of Public Scoping Period and Announcement of Additional Public Scoping Meetings Continued Operation of the Sandia National Laboratories, New Mexico Comment Period Ends: 9/12/2011 Submit Comments to: Ms. Jeanette Norte NNSA Sandia Site Office P.O. Box 5400 Albuquerque, NM 87185-5400 Telephone: 505-845-4808 Toll-free: 1-855-766-4651 Fax: 505-284-7197 Electronic mail: sandia.sweis@doeal.gov On June 24, 2011, the National Nuclear Security Administration (NNSA), a semiautonomous agency within the U.S. Department of Energy (DOE), published a Notice of Intent (NOI) for the preparation of a Site-Wide Environmental Impact Statement (SWEIS) for the Sandia National Laboratories, New Mexico

319

Residual Sediment Fluxes in Weakly-to-Periodically Stratified Estuaries and Tidal Inlets  

Science Conference Proceedings (OSTI)

In this idealized numerical modeling study, the composition of residual sediment fluxes in energetic (e.g., weakly stratified or periodically stratified) tidal estuaries is investigated by means of one-dimensional water column models, with some ...

Hans Burchard; Henk M. Schuttelaars; W. Rockwell Geyer

320

Use of MCC-Based Motor Torque Measurements for Periodic Verification of Motor-Operated Valves  

Science Conference Proceedings (OSTI)

This report develops, justifies, and validates a motor control center- (MCC-) based motor torque periodic verification (MTPV) method for torque-switch-controlled closing strokes of rising stem motor-operated valves (MOVs) with ac motors. The report details the evaluation of motor torque data obtained from electrical measurements at the MCC and covers the use of these (and other) measurements in MOV periodic verification (PV) testing.

2006-03-30T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Computing Periodicities in Strings --A New W. F. Smyth1,2  

E-Print Network (OSTI)

p. If no such repetition exists, we say that (i, p, e) is NLE. Given an NLE repetition (i, p, e periodicity) is a 4-tuple (i, p, e, t), where (i, p, e) is an NLE repetition of tail t. The idea of a run searching, Algorithmica 13 (1995 405­425. 6. Kangmin Fan, R. J. Simpson & W. F. Smyth, A new periodicity

Smyth, William F.

322

Approximations of the operator exponential in a periodic diffusion problem with drift  

SciTech Connect

A Cauchy problem for a parabolic diffusion equation with 1-periodic coefficients containing first order terms is studied. For the corresponding semigroup we construct approximations in the L{sup 2}-operator norm on sections t=const of order O(t{sup -m/2}) as t{yields}{infinity} for m=1 or m=2. The spectral method based on the Bloch representation of an operator with periodic coefficients is used. Bibliography: 25 titles.

Pastukhova, Svetlana E [Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University), Moscow (Russian Federation)] [Moscow State Institute of Radio-Engineering, Electronics and Automation (Technical University), Moscow (Russian Federation)

2013-02-28T23:59:59.000Z

323

Two-Phase Reaction Turbine. Technical progress report for the period July-December 1999  

DOE Green Energy (OSTI)

During the initial part of this period the concentrated effort was placed on getting comprehensive analysis and design of the turbine prototype. This was in order to be able to initiate its fabrication as needed for its building, assembling and timely testing. In the second part of this period the effort was placed on design and other considerations needed to acquire the test rig within the limited budget based on subsequent grant from the DOE.

NONE

1999-12-31T23:59:59.000Z

324

Energy payback and CO{sub 2} gas emissions from fusion and solar photovoltaic electric power plants. Final report to Department of Energy, Office of Fusion Energy Sciences  

DOE Green Energy (OSTI)

A cradle-to-grave net energy and greenhouse gas emissions analysis of a modern photovoltaic facility that produces electricity has been performed and compared to a similar analysis on fusion. A summary of the work has been included in a Ph.D. thesis titled ''Life-cycle assessment of electricity generation systems and applications for climate change policy analysis'' by Paul J. Meier, and a synopsis of the work was presented at the 15th Topical meeting on Fusion Energy held in Washington, DC in November 2002. In addition, a technical note on the effect of the introduction of fusion energy on the greenhouse gas emissions in the United States was submitted to the Office of Fusion Energy Sciences (OFES).

Kulcinski, G.L.

2002-12-01T23:59:59.000Z

325

Progress in Photovoltaics Research and Applications, 14:179-190, 2006 Energy Pay-Back and Life Cycle CO2 Emissions of the BOS in an  

E-Print Network (OSTI)

. Hansen3 and H.C. Kim2 1 Solar Energy Campaign, 52 Columbia Street, Farmingdale, NY 11735, E such savings and lower emissions is timely. Previous life-cycle assessments of field and rooftop PV systems plants is much greater than the energy requirements in rooftop and facade installations.1

326

Energy payback and CO{sub 2} gas emissions from fusion and solar photovoltaic electric power plants. Final report to Department of Energy, Office of Fusion Energy Sciences  

SciTech Connect

A cradle-to-grave net energy and greenhouse gas emissions analysis of a modern photovoltaic facility that produces electricity has been performed and compared to a similar analysis on fusion. A summary of the work has been included in a Ph.D. thesis titled ''Life-cycle assessment of electricity generation systems and applications for climate change policy analysis'' by Paul J. Meier, and a synopsis of the work was presented at the 15th Topical meeting on Fusion Energy held in Washington, DC in November 2002. In addition, a technical note on the effect of the introduction of fusion energy on the greenhouse gas emissions in the United States was submitted to the Office of Fusion Energy Sciences (OFES).

Kulcinski, G.L.

2002-12-01T23:59:59.000Z

327

Page not found | Department of Energy  

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

41 - 19150 of 28,905 results. 41 - 19150 of 28,905 results. Download Policy Flash 2012-38 Attached is Policy Flash 2012-38 Acquisition Guide 42.2 Foreign Travel Approval http://energy.gov/management/downloads/policy-flash-2012-38 Article Estimating the Payback Period of Additional Insulation Adding insulation to an existing home often has an attractive payback period. http://energy.gov/energysaver/articles/estimating-payback-period-additional-insulation Download Safety Management System Policy Safety Management Systems provide a formal, organized process whereby people plan, perform, assess, and improve the safe conduct of work. The Safety Management System is institutionalized through... http://energy.gov/em/downloads/safety-management-system-policy Download Enhancing Railroad Hazardous Materials Transportation Safety

328

EIS-0472: Notice of Public Scoping Meetings and Extension of Scoping Period  

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

472: Notice of Public Scoping Meetings and Extension of 472: Notice of Public Scoping Meetings and Extension of Scoping Period EIS-0472: Notice of Public Scoping Meetings and Extension of Scoping Period Uranium Leasing Program Programmatic Environmental Impact Statement Comment Period Ends: 09/09/11 Submit Comments to: Laura Kilpatrick, Esq. DOE ULP Program Manager Office of Legacy Management U.S. Department of Energy 11025 Dover Street, Suite 1000 Westminster, CO 80021 Electronic comments: http://ulpeis.anl.gov Electronic mail: ulpeis@anl.gov DOE will host public scoping meetings in western Colorado to receive comments on the scope of the DOE Uranium Leasing Program (ULP) Programmatic Environmental Impact Statement (hereinafter referred to as the ULP PEIS). The PEIS will analyze the reasonably foreseeable environmental impacts,

329

EIS-0183: Notice of Extension of Scoping Period | Department of Energy  

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

Extension of Scoping Period Extension of Scoping Period EIS-0183: Notice of Extension of Scoping Period Administration-Construction, Operation, and Maintenance of the Proposed Transmission Agency of Northern California Transmission Project, California On February 23, 2009, Western Area Power Administration (Western), an agency of the Department of Energy (DOE), announced the Notice of Intent to prepare an Environmental Impact Statement/Environmental Impact Report (EIS/EIR) for the construction, operation, and maintenance of the proposed Transmission Agency of Northern California (TANC) Transmission Project. In that notice, Western described the schedule for scoping meetings and advised the public that comments on the scope of the EIS/EIR were due by April 30, 2009. DOE/EIS-0183, Western Area Power Administration-Construction, Operation,

330

EIS-0183: Notice of Extension of Scoping Period | Department of Energy  

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

Notice of Extension of Scoping Period Notice of Extension of Scoping Period EIS-0183: Notice of Extension of Scoping Period Administration-Construction, Operation, and Maintenance of the Proposed Transmission Agency of Northern California Transmission Project, California On February 23, 2009, Western Area Power Administration (Western), an agency of the Department of Energy (DOE), announced the Notice of Intent to prepare an Environmental Impact Statement/Environmental Impact Report (EIS/EIR) for the construction, operation, and maintenance of the proposed Transmission Agency of Northern California (TANC) Transmission Project. In that notice, Western described the schedule for scoping meetings and advised the public that comments on the scope of the EIS/EIR were due by April 30, 2009. DOE/EIS-0183, Western Area Power Administration-Construction, Operation,

331

EIS-0283-S2: Notice of Extension of Public Review and Comment Period and  

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

Notice of Extension of Public Review and Comment Notice of Extension of Public Review and Comment Period and Announcement of an Additional Public Hearing EIS-0283-S2: Notice of Extension of Public Review and Comment Period and Announcement of an Additional Public Hearing Draft Surplus Plutonium Disposition Supplemental Environmental Impact Statement DOE has extended the comment period for the Surplus Plutonium Disposition Supplemential EIS through October 10 and announces an additional Public Hearing in Espanola, NM. EIS-0283-S2-CommentExtension-2012.pdf More Documents & Publications EIS-0312: Notice of Availability of the Bonneville Power Administration Administrator's Record of Decision UDAC Meeting - January 2012 Electricity Advisory Committee Notice of Open Meeting October 2 and 3, 2013: Federal Register Notice Volume 78, No. 176 - September 11, 2013

332

DOE Extends Public Comment Period for the Draft Uranium Leasing Program  

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

the Draft Uranium Leasing the Draft Uranium Leasing Program Programmatic Environmental Impact Statement DOE Extends Public Comment Period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement June 3, 2013 - 3:05pm Addthis Contractor, Bob Darr, S.M. Stoller Corporation Public Affairs, (720) 377-9672, ULinfo@lm.doe.gov May 29, 2013 DOE Extends Public Comment Period for Uranium Program Environmental Impact Statement The U.S. Department of Energy (DOE) today announced that the public comment period for the Draft Uranium Leasing Program Programmatic Environmental Impact Statement (ULP PEIS) has been extended to July 1, 2013. Under the Uranium Leasing Program, DOE's Office of Legacy Management manages 31 tracts of land in Mesa, Montrose, and San Miguel counties in

333

S&TR | April 2007: A New Block on the Periodic Table  

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

Article title: A New Block on the Periodic Table; photo of Dawn Shaughnessy. Livermore chemist Dawn Shaughnessy adds the most recently created element to the periodic table. SCIENTISTS from Lawrence Livermore working in collaboration with a team from the Joint Institute for Nuclear Research (JINR) in Dubna, Russia, have discovered element 118, the newest block on the periodic table. Lasting less than a millisecond before decaying and ultimately fissioning, element 118 is the latest element to be synthesized artificially. Why do scientists work so hard to create new elements that last for such a short time? According to chemist Dawn Shaughnessy from Livermore's Chemistry, Materials, and Life Sciences Directorate, "Each new element we discover provides more knowledge about the forces that bind nuclei and what

334

Start-Up of Air Conditioning Systems After Periods of Shutdown (Humidity Considerations)  

E-Print Network (OSTI)

In many cases the single most important energy conservation measure that can be taken is to turn equipment off when it is not needed. In the case of air conditioning, this generally means turning it off when occupants leave and turning it back on in time to have the space comfortable when they return. In humid climates special problems are often encountered when a system is restarted after a period of shutdown. The temperature and humidity in the space rises during the period of shutdown. Unfortunately the latent load required to bring the space back to comfort conditions is usually much higher than the sensible load. Most methods of control are ill suited for this duty. This paper examines the response of various types of air conditioning systems during this recovery period and makes recommendations for system designers.

Todd, T. R.

1986-01-01T23:59:59.000Z

335

Flow and heat transfer in a curved pipe with periodically varying curvature  

SciTech Connect

A numerical analysis is carried out for the study of the flow and heat transfer for a laminar flow in a pipe with periodically varying finite (not very small) curvature. The effects of the flow rate (Re), the Prandtl number (Pr), the pipe-period ({kappa}) and the pipe-amplitude (a) on the heat transfer ratio (heat transfer of curved pipe to straight pipe) are studied. The results show that an increase in the amplitude and/or a decrease in the wavelength of a periodic wavy pipe can enhance the heat transfer rate significantly. The ratio of the heat transfer ratio to the friction ratio is greater than one which means a net benefit of heat transfer enhancement.

Yang, R.; Chang, S.F.; Wu, W.

2000-01-01T23:59:59.000Z

336

Earthquake Induced Damage Mechanism of Long Period Structures Using Energy Response  

SciTech Connect

This paper presents a method of expounding the damage of RC long period frame structure using energy analysis method. Since the damage of structures usually occurs under major earthquakes, the structure is assumed to be in elasto-plastic state, and degraded Bouc-Wen model is used to describe the hysteretic component of the restoring force. A double index damage criterion defined by the maximum drift and energy absorption is used as the damage criterion. The energy transferring relation in a structure is derived, and both momentary and cumulative energy response is used to reflect the delay of the collapse of a long period structure. The mechanism of collapse delay of the long period structure is suggested through a numerical example combing the energy response and time history response.

Du Yongfeng; Li Hui [Western Engineering Research Center for Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou, 730050 (China); Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou, 730050 (China)

2008-07-08T23:59:59.000Z

337

Correlations and periodicities in Himalayan tree ring widths and temperature anomalies through wavelets  

E-Print Network (OSTI)

We have studied periodicities and correlation properties of tree ring width chronology of deodar tree from Joshimath (1584 - 1999 years) and Uttarkashi (1500 - 2002 years) in the western Himalayas and the pre-monsoon (March-April-May) temperature anomalies (1876 - 2003) relative to 1961 -1990 mean, through wavelet analysis. Periodic behavior is observed in the tree ring chronology with periodicity in the form 11, 22, and 42 years. The analysis of the self-similar nature reveals long-range correlation with a Hurst exponent, $H >0.5$. These are anti-correlated with the temperature anomalies. An interesting inversion behavior is observed around the year 1750. The power spectral analysis of the time series corroborate the results of wavelet method.

Prasanta K. Panigrahi; P. Manimaran; Ananth Lakhmi; Ram R. Yadav

2006-04-01T23:59:59.000Z

338

Chemical Technology Division progress report for the period April 1, 1985 to December 31, 1986  

SciTech Connect

This progress report summarizes the research and development efforts conducted in the Chemical Technology Division (Chem Tech) during the period April 1, 1985, through December 31, 1986. The following major areas are covered in the discussion: nuclear and chemical waste management, environmental control technology, basic science and technology, biotechnology research, transuranium-element processing, Nuclear Regulatory Commission programs, radioactive materials production, computer/engineering applications, fission energy, environmental cleanup projects, and various other work activities. As an appendix, the Administrative Summary presents a comprehensive compilation of publications, oral presentations, awards and recognitions, and patents of Chem Tech staff members during this report period. An organization chart, a staffing level and financial summary, and lists of seminars and Chem Tech consultants for the period are also included to provide additional information. 78 figs., 40 tabs.

1987-08-01T23:59:59.000Z

339

Short-Period Variables in the Local Group Dwarf Galaxies Tucana and LGS3  

E-Print Network (OSTI)

We present preliminary results concerning the search for short-period variable stars in Tucana and LGS3 based on very deep HST/ACS imaging. In the fraction of the observed field we studied in each galaxy, a total of 133 and 30 variables were found, respectively. For Tucana, we identified 76 of them as RR Lyrae (RRL) stars pulsating in the fundamental mode (RRab) and 32 in the first-overtone mode (RRc), as well as 2 anomalous Cepheids (AC). The mean period of the RRab and RRc is 0.59 and 0.35 days, respectively. In the case of LGS3, we found 24 RRab and 4 RRc, with mean periods 0.61and 0.39 days, respectively, plus two candidate ACs. These values place both galaxies in the Oosterhoff gap.

Bernard, E J; Gallart, C; Aparicio, A; Bertelli, G; Cassisi, S; Cole, A A; Demarque, P; Dolphin, A E; Drozdovsky, I; Ferguson, H C; Hidalgo, S; Mateo, M; Mayer, L; Navarro, J; Pont, F; Skillman, E D; Stetson, P B; Tolstoy, E

2007-01-01T23:59:59.000Z

340

Short-Period Variables in the Local Group Dwarf Galaxies Tucana and LGS3  

E-Print Network (OSTI)

We present preliminary results concerning the search for short-period variable stars in Tucana and LGS3 based on very deep HST/ACS imaging. In the fraction of the observed field we studied in each galaxy, a total of 133 and 30 variables were found, respectively. For Tucana, we identified 76 of them as RR Lyrae (RRL) stars pulsating in the fundamental mode (RRab) and 32 in the first-overtone mode (RRc), as well as 2 anomalous Cepheids (AC). The mean period of the RRab and RRc is 0.59 and 0.35 days, respectively. In the case of LGS3, we found 24 RRab and 4 RRc, with mean periods 0.61and 0.39 days, respectively, plus two candidate ACs. These values place both galaxies in the Oosterhoff gap.

E. J. Bernard; M. Monelli; C. Gallart; A. Aparicio; G. Bertelli; S. Cassisi; A. A. Cole; P. Demarque; A. E. Dolphin; I. Drozdovsky; H. C. Ferguson; S. Hidalgo; M. Mateo; L. Mayer; J. Navarro; F. Pont; E. D. Skillman; P. B. Stetson; E. Tolstoy

2007-01-25T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

NATIONAL EVALUATION OF THE WEATHERIZATION ASSISTANCE PROGRAM DURING THE ARRA PERIOD: PROGRAM YEARS 2009-2011  

SciTech Connect

This report describes the third major evaluation of the Program, encompassing program years 2009 to 2011. In this report, this period of time is referred to as the ARRA Period. This is a special period of time for the Program because the American Recovery and Reinvestment Act (ARRA) of 2009 has allocated $5 billion of funding for the Program. In normal program years, WAP s annual appropriation is in the range of $200-250 million, supporting the weatherization of approximately 100,000 homes. With the addition of ARRA funding during these program years, the expectation is that weatherization activity will exceed 300,000 homes per year. In addition to saving energy and reducing low-income energy bills, expanded WAP funding is expected to stimulate the economy by providing new jobs in the weatherization field and allowing low-income households to spend more money on goods and services by spending less on energy.

Tonn, Bruce Edward [ORNL; Rose, Erin M [ORNL; Schmoyer, Richard L [ORNL; Eisenberg, Joel Fred [ORNL; Ternes, Mark P [ORNL; Schweitzer, Martin [ORNL; Hendrick, Timothy P [ORNL

2012-08-01T23:59:59.000Z

342

The orbital and superhump periods of the deeply eclipsing dwarf nova PU UMa  

E-Print Network (OSTI)

We report unfiltered photometry during superoutbursts of PU UMa in 2009 and 2012. The amplitude was 4.5 magnitudes above mean quiescence and lasted at least 9 to 10 days. Superhumps were present with a peak-to-peak amplitude of up to ~0.3 mag, thereby confirming it to be a member of the SU UMa family of dwarf novae. The mean superhump period during the later part of the 2012 outburst was Psh = 0.08076(40) d. Analysis of the eclipse times of minimum, supplemented with data from other researchers, revealed an orbital period of Porb = 0.077880551(17) d. The superhump period excess was epsilon = 0.037(5). During the 2012 outburst, which was the better observed of the two, the FWHM eclipse duration gradually declined from 9.5 to 5 min. The eclipse depth was up to 1.7 magnitudes.

Shears, Jeremy; Littlefield, Colin; Miller, Ian; Morelle, Etienne; Pickard, Roger; Pietz, Jochen; Sabo, Richard

2012-01-01T23:59:59.000Z

343

EIS-0472: Notice of Public Scoping Meetings and Extension of Scoping Period  

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

2: Notice of Public Scoping Meetings and Extension of 2: Notice of Public Scoping Meetings and Extension of Scoping Period EIS-0472: Notice of Public Scoping Meetings and Extension of Scoping Period Uranium Leasing Program Programmatic Environmental Impact Statement Comment Period Ends: 09/09/11 Submit Comments to: Laura Kilpatrick, Esq. DOE ULP Program Manager Office of Legacy Management U.S. Department of Energy 11025 Dover Street, Suite 1000 Westminster, CO 80021 Electronic comments: http://ulpeis.anl.gov Electronic mail: ulpeis@anl.gov DOE will host public scoping meetings in western Colorado to receive comments on the scope of the DOE Uranium Leasing Program (ULP) Programmatic Environmental Impact Statement (hereinafter referred to as the ULP PEIS). The PEIS will analyze the reasonably foreseeable environmental impacts,

344

The U.S. Department of Energy is reopening the public scoping period for  

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

The U.S. Department of Energy is reopening the public scoping The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS). The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS). June 15, 2011 - 2:35pm Addthis The U.S. Department of Energy is reopening the public scoping period for the Northern Pass Transmission Line Project Environmental Impact Statement (EIS). Addthis Related Articles Amended Notice of Intent for the Northern Pass Transmission Line Project Published in the Federal Register Obama Officials Announce Steps to Promote the Clean Energy Potential of the West DOE Environmental Impact Statement Public Scoping Meeting on Champlain

345

Efficient Evaluation of Doubly Periodic Green Functions in 3D Scattering, Including Wood Anomaly Frequencies  

E-Print Network (OSTI)

We present efficient methods for computing wave scattering by diffraction gratings that exhibit two-dimensional periodicity in three dimensional (3D) space. Applications include scattering in acoustics, electromagnetics and elasticity. Our approach uses boundary-integral equations. The quasi-periodic Green function is a doubly infinite sum of scaled 3D free-space outgoing Helmholtz Green functions. Their source points are located at the nodes of a periodicity lattice of the grating. For efficient numerical computation of the lattice sum, we employ a smooth truncation. Super-algebraic convergence to the Green function is achieved as the truncation radius increases, except at frequency-wavenumber pairs at which a Rayleigh wave is at exactly grazing incidence to the grating. At these "Wood frequencies", the term in the Fourier series representation of the Green function that corresponds to the grazing Rayleigh wave acquires an infinite coefficient and the lattice sum blows up. At Wood frequencies, we modify the Green function by adding two types of terms to it. The first type adds weighted spatial shifts of the Green function to itself with singularities below the grating; this yields algebraic convergence. The second-type terms are quasi-periodic plane wave solutions of the Helmholtz equation. They reinstate (with controlled coefficients) the grazing modes, effectively eliminated by the terms of first type. These modes are needed in the Green function for guaranteeing the well-posedness of the boundary-integral equation that yields the scattered field. We apply this approach to acoustic scattering by a doubly periodic 2D grating near and at Wood frequencies and scattering by a doubly periodic array of scatterers away from Wood frequencies.

Oscar P. Bruno; Stephen P. Shipman; Catalin Turc; Stephanos Venakides

2013-07-04T23:59:59.000Z

346

Getting More For Your Money: Identifying and Confirming Long-Period Planets with Kepler  

E-Print Network (OSTI)

Kepler will monitor enough stars that it is likely to detect single transits of planets with periods longer than the mission lifetime. We show that by combining the Kepler photometry of such transits with precise radial velocity (RV) observations taken over ~3 months, and assuming circular orbits, it is possible to estimate the periods of these transiting planets to better than 20% (for planets with radii greater than that of Neptune) and the masses to within a factor of 2 (for planet masses m_p > M_Jup). We also explore the effects of eccentricity on our estimates of these uncertainties.

Jennifer C. Yee; B. Scott Gaudi

2008-07-16T23:59:59.000Z

347

Synchronization of an array of spin torque nano oscillators in periodic applied external magnetic field  

E-Print Network (OSTI)

Considering an array of spin torque transfer nano oscillators (STNOs), we have investigated the synchronization property of the system under the action of a common periodically driven applied external magnetic field by numerically analyzing the underlying system of Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equations for the macro-spin variables. We find the novel result that the applied external magnetic field can act as a medium to induce synchronization of periodic oscillations, both in-phase and anti-phase, even without coupling through spin current, thereby leading to the exciting possibility of enhancement of microwave power in a straightforward way.

B. Subash; V. K. Chandrasekar; M. Lakshmanan

2013-04-03T23:59:59.000Z

348

Generation of multiscale magnetic field by parity-invariant time-periodic flows  

E-Print Network (OSTI)

We study generation of magnetic fields involving large spatial scales by time- and space-periodic small-scale parity-invariant flows. The anisotropic magnetic eddy diffusivity tensor is calculated by the standard procedure involving expansion of magnetic modes and their growth rates in power series in the scale ratio. Our simulations, conducted for flows with random harmonic composition and exponentially decaying energy spectra, demonstrate that enlargement of the spatial scale of magnetic field is beneficial for generation by time-periodic flows. However, they turn out, in general, to be less efficient dynamos, than steady flows.

V. A. Zheligovsky; O. M. Podvigina

2002-07-28T23:59:59.000Z

349

Use and Value of Multiple-Period Forecasts in a Dynamic Model of the Cost-Loss Ratio Situation  

Science Conference Proceedings (OSTI)

On most forecasting occasions forecasts are made for several successive periods, but decision-making models have traditionally neglected the impact of the potentially useful information contained in forecasts for periods beyond the initial ...

Edward S. Epstein; Allan H. Murphy

1988-03-01T23:59:59.000Z

350

Critical period window for spectral tuning defined in the primary auditory cortex (A1) in the rat  

E-Print Network (OSTI)

Repair Critical Period Window for Spectral Tuning Defined inregulation of the CP window is tied to sensory experience,of the critical period window for the rat primary auditory

de Villers-Sidani, Etienne; Chang, Edward F; Bao, Shaowen; Merzenich, Michael M

2007-01-01T23:59:59.000Z

351

FUEL CONSUMPTION AND COST SAVINGS OF CLASS 8 HEAVY-DUTY TRUCKS POWERED BY NATURAL GAS  

Science Conference Proceedings (OSTI)

We compare the fuel consumption and greenhouse gas emissions of natural gas and diesel heavy-duty (HD) class 8 trucks under consistent simulated drive cycle conditions. Our study included both conventional and hybrid HD trucks operating with either natural gas or diesel engines, and we compare the resulting simulated fuel efficiencies, fuel costs, and payback periods. While trucks powered by natural gas engines have lower fuel economy, their CO2 emissions and costs are lower than comparable diesel trucks. Both diesel and natural gas powered hybrid trucks have significantly improved fuel economy, reasonable cost savings and payback time, and lower CO2 emissions under city driving conditions. However, under freeway-dominant driving conditions, the overall benefits of hybridization are considerably less. Based on payback period alone, non-hybrid natural gas trucks appear to be the most economic option for both urban and freeway driving environments.

Gao, Zhiming [ORNL; LaClair, Tim J [ORNL; Daw, C Stuart [ORNL; Smith, David E [ORNL

2013-01-01T23:59:59.000Z

352

Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data  

E-Print Network (OSTI)

This paper presents results of an all-sky search for periodic gravitational waves in the frequency range [50,1?190]??Hz and with frequency derivative range of ?[-20,1.1]×10[superscript -10]??Hz?s[superscript -1] for the ...

Barsotti, Lisa

353

Faster and parameter-free discord search in quasi-periodic time series  

Science Conference Proceedings (OSTI)

Time series discord has proven to be a useful concept for time-series anomaly identification. To search for discords, various algorithms have been developed. Most of these algorithms rely on pre-building an index (such as a trie) for subsequences. Users ... Keywords: anomaly detection, minimax search, periodic time series, time series data mining, time series discord

Wei Luo; Marcus Gallagher

2011-05-01T23:59:59.000Z

354

Short Note: A Fourier-based elliptic solver for vortical flows with periodic and unbounded directions  

Science Conference Proceedings (OSTI)

We present a computationally efficient, adaptive solver for the solution of the Poisson and Helmholtz equation used in flow simulations in domains with combinations of unbounded and periodic directions. The method relies on using FFTs on an extended ... Keywords: Elliptic solver, Infinite domain, Particle methods, Unbounded domain, Vortex methods

Philippe Chatelain; Petros Koumoutsakos

2010-04-01T23:59:59.000Z

355

Solid State Division progress report for period ending September 30, 1990  

SciTech Connect

This report covers research progress in the Solid State Division from April 1, 1989, to September 30, 1990. During this period, division research programs were significantly enhanced by the restart of the High-Flux Isotope Reactor (HFIR) and by new initiatives in processing and characterization of materials.

Green, P.H.; Hinton, L.W. (eds.)

1991-03-01T23:59:59.000Z

356

Periodic equivalence ratio modulation method and apparatus for controlling combustion instability  

DOE Patents (OSTI)

The periodic equivalence ratio modulation (PERM) method and apparatus significantly reduces and/or eliminates unstable conditions within a combustion chamber. The method involves modulating the equivalence ratio for the combustion device, such that the combustion device periodically operates outside of an identified unstable oscillation region. The equivalence ratio is modulated between preselected reference points, according to the shape of the oscillation region and operating parameters of the system. Preferably, the equivalence ratio is modulated from a first stable condition to a second stable condition, and, alternatively, the equivalence ratio is modulated from a stable condition to an unstable condition. The method is further applicable to multi-nozzle combustor designs, whereby individual nozzles are alternately modulated from stable to unstable conditions. Periodic equivalence ratio modulation (PERM) is accomplished by active control involving periodic, low frequency fuel modulation, whereby low frequency fuel pulses are injected into the main fuel delivery. Importantly, the fuel pulses are injected at a rate so as not to affect the desired time-average equivalence ratio for the combustion device.

Richards, George A.; Janus, Michael C.; Griffith, Richard A.

1998-12-01T23:59:59.000Z

357

Property:Building/MeanAnnualTempCalculationPeriod | Open Energy Information  

Open Energy Info (EERE)

MeanAnnualTempCalculationPeriod MeanAnnualTempCalculationPeriod Jump to: navigation, search This is a property of type Number. Mean annual temperature during the calculation period Pages using the property "Building/MeanAnnualTempCalculationPeriod" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 7.6 + Sweden Building 05K0002 + 7.6 + Sweden Building 05K0003 + 7.142 + Sweden Building 05K0004 + 7.6 + Sweden Building 05K0005 + 7.733 + Sweden Building 05K0006 + 7.733 + Sweden Building 05K0007 + 7.733 + Sweden Building 05K0008 + 7.733 + Sweden Building 05K0009 + 7.733 + Sweden Building 05K0010 + 7.733 + Sweden Building 05K0011 + 7.733 + Sweden Building 05K0012 + 7.6 + Sweden Building 05K0013 + 7.733 + Sweden Building 05K0014 + 7.083 +

358

Final report on Project ESEPP (LEAP+) for the period January 1, 1996 - August 1, 1998  

SciTech Connect

This is the final report for the Project to Enhance Student Science and Engineering Preparation at the Pre-College Level (Project ESEPP) for the period from January 1, 1996 through August 1, 1998. This report summarizes the accomplishments of the program and its ability to meet the objectives described in the original proposal (1990).

Henley, Vernard Jr.

2000-03-10T23:59:59.000Z

359

Battery Aware Dynamic Scheduling For Periodic Task Graphs Venkat Rao1  

E-Print Network (OSTI)

Battery Aware Dynamic Scheduling For Periodic Task Graphs Venkat Rao1 , Nicolas Navet1 , Gaurav. of Electrical Engineering anshul@cse.iitd.ernet.in gswaran@ee.iitd.ernet.in Abstract Battery lifetime, a primary profile. This paper ex- plores how scheduling guidelines from battery models can help in extending battery

Paris-Sud XI, Université de

360

Kilohertz quasi-periodic oscillations and strong field gravity in X-ray binaries  

E-Print Network (OSTI)

In the past five years observations with the Rossi X-ray Timing Explorer have revealed fast quasi-periodic oscillations in the X-ray flux of about 20 X-ray binaries. Thought to originate close to the surface of a neutron star, these oscillations provide unique information about the strong gravitational field in which they are produced.

Mariano Mendez

2002-07-12T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

A full factory transient simulation model for the analysis of expected performance in a transition period  

Science Conference Proceedings (OSTI)

Intel's Fab-18 is based in Israel, and has transitioned from producing 0.18-micron logic devices to producing 90nM flash products. During this transition period, the factory has de-ramped in volume of logic while ramping-up flash. AutoSched AP software ...

Moti Klein; Adar Kalir

2006-12-01T23:59:59.000Z

362

MATHEMATICS DIVISION ANNUAL PROGRESS REPORT FOR PERIOD ENDING DECEMBER 31, 1962  

SciTech Connect

Research on numerical analysis, biological and medical statistics, and programming is reported. Programming and analysis work involved chemistry, health physics, analytical chemistry and chemical technology, neutron physics, physics, reactors, reactor chemistry, metallurgy, and computer operation and programming. Agricultural research and the training courses offered are also reported. A list of lectures, papers, and publications for the report period is included. (D.C.W.)

1963-04-17T23:59:59.000Z

363

Two dimensional periodic box-ball system and its fundamental cycle  

E-Print Network (OSTI)

We study a 2-dimensional Box-Ball system which is a ultradiscrete analog of the discrete KP equation. We construct an algorithm to calculate the fundamental cycle, which is an important conserved quantity of the 2-dim. Box-Ball system with periodic boundary condition, by using the tropical curve theory.

Shinsuke Iwao

2011-02-22T23:59:59.000Z

364

An adaptive multitime multigrid algorithm for time-periodic flow simulations  

Science Conference Proceedings (OSTI)

The multiscale behaviour and multidisciplinary nature of rotorcraft aerodynamics has delayed the introduction of CFD techniques for rotorcraft aerodynamics. The numerical dissipation of standard CFD algorithms may destroy tip vortices before blade-vortex ... Keywords: 02.60.Cb, 02.70.Dh, 03.40.Gc, Multigrid, Space-time discontinuous Galerkin method, Time domain, Time-periodic

H. van der Ven

2008-05-01T23:59:59.000Z

365

GENERATION OF QUASI-PERIODIC WAVES AND FLOWS IN THE SOLAR ATMOSPHERE BY OSCILLATORY RECONNECTION  

Science Conference Proceedings (OSTI)

We investigate the long-term evolution of an initially buoyant magnetic flux tube emerging into a gravitationally stratified coronal hole environment and report on the resulting oscillations and outflows. We perform 2.5-dimensional nonlinear numerical simulations, generalizing the models of McLaughlin et al. and Murray et al. We find that the physical mechanism of oscillatory reconnection naturally generates quasi-periodic vertical outflows, with a transverse/swaying aspect. The vertical outflows consist of both a periodic aspect and evidence of a positively directed flow. The speed of the vertical outflow (20-60 km s{sup -1}) is comparable to those reported in the observational literature. We also perform a parametric study varying the magnetic strength of the buoyant flux tube and find a range of associated periodicities: 1.75-3.5 minutes. Thus, the mechanism of oscillatory reconnection may provide a physical explanation to some of the high-speed, quasi-periodic, transverse outflows/jets recently reported by a multitude of authors and instruments.

McLaughlin, J. A.; Verth, G. [School of Computing, Engineering and Information Sciences, Northumbria University, Newcastle Upon Tyne, NE1 8ST (United Kingdom); Fedun, V.; Erdelyi, R., E-mail: james.a.mclaughlin@northumbria.ac.uk, E-mail: gary.verth@northumbria.ac.uk, E-mail: v.fedun@sheffield.ac.uk, E-mail: robertus@sheffield.ac.uk [Solar Physics and Space Plasma Research Centre (SP2RC), School of Mathematics and Statistics, University of Sheffield, Hounsfield Road, Hicks Building, Sheffield, S3 7RH (United Kingdom)

2012-04-10T23:59:59.000Z

366

Quality of monitoring of stochastic events by periodic & proportional-share scheduling of sensor coverage  

Science Conference Proceedings (OSTI)

We analyze the quality of monitoring (QoM) of stochastic events by a periodic sensor which monitors a point of interest (PoI) for q time every p time. We show how the amount of information captured at a PoI is affected by the proportion ...

David K. Y. Yau; Nung Kwan Yip; Chris Y. T. Ma; Nageswara S. Rao; Mallikarjun Shankar

2008-12-01T23:59:59.000Z

367

STELLAR PULSATIONS AND PERIOD CHANGES IN THE SX PHOENICIS STAR XX CYGNI  

SciTech Connect

Time-series photometric observations were made for the SX Phoenicis star XX Cyg between 2007 and 2011 at the Xinglong Station of National Astronomical Observatories of China. With the light curves derived from the new observations, we do not detect any secondary maximum in the descending portion of the light curves of XX Cyg, as reported in some previous work. Frequency analysis of the light curves confirms a fundamental frequency f{sub 0} = 7.4148 cycles day{sup -1} and up to 19 harmonics, 11 of which are newly detected. However, no secondary mode of pulsation is detected from the light curves. The O-C diagram, produced from 46 newly determined times of maximum light combined with those derived from the literature, reveals a continuous period increase with the rate of (1/P)(dP/dt) = 1.19(13) Multiplication-Sign 10{sup -8} yr{sup -1}. Theoretical rates of period change due to the stellar evolution were calculated with a modeling code. The result shows that the observed rate of period change is fully consistent with period change caused by evolutionary behavior predicted by standard theoretical models.

Yang, X. H.; Fu, J. N.; Zha, Q., E-mail: jnfu@bnu.edu.cn [Astronomy Department, Beijing Normal University, Beijing 100875 (China)

2012-10-01T23:59:59.000Z

368

Modulation of the Period of the Quasi-Biennial Oscillation by the Solar Cycle  

Science Conference Proceedings (OSTI)

The authors examine the mechanism of solar cycle modulation of the Quasi-Biennial Oscillation (QBO) period using the Two-and-a-Half-Dimensional Interactive Isentropic Research (THINAIR) model. Previous model results (using 2D and 3D models of ...

Le Kuai; Run-Lie Shia; Xun Jiang; Ka Kit Tung; Yuk L. Yung

2009-08-01T23:59:59.000Z

369

Deviation of Long-Period Tides from Equilibrium: Kinematics and Geostrophy  

Science Conference Proceedings (OSTI)

New empirical estimates of the long-period fortnightly (Mf) tide obtained from TOPEX/Poseidon (T/P) altimeter data confirm significant basin-scale deviations from equilibrium. Elevations in the low-latitude Pacific have reduced amplitude and lag ...

Gary D. Egbert; Richard D. Ray

2003-04-01T23:59:59.000Z

370

Solid State Division progress report for period ending March 31, 1992  

SciTech Connect

During this period, the division conducted a broad, interdisciplinary materials research program with emphasis on theoretical solid state physics, superconductivity, neutron scattering, synthesis and characterization of materials, ion beam and laser processing, and the structure of solids and surfaces. The High Flux Isotope Reactor was returned to full operation.

Green, P.H.; Hinton, L.W. (eds.)

1992-09-01T23:59:59.000Z

371

Millihertz quasi-periodic oscillations and thermonuclear bursts from Terzan 5: A showcase of burning regimes  

E-Print Network (OSTI)

We present a comprehensive study of the thermonuclear bursts and millihertz quasi-periodic oscillations (mHz QPOs) from the neutron star (NS) transient and 11 Hz X-ray pulsar IGR J17480–2446, located in the globular cluster ...

Linares, M.

372

Probabilities for a Period and Its Subperiods: Theoretical Relations for Forecasting  

Science Conference Proceedings (OSTI)

Consider an event definable in terms of two subevents as, for example, the occurrence of precipitation within a 24-h period is definable in terms of the occurrence of precipitation within each of the 12-h subperiods. A complete forecast must ...

Roman Krzysztofowicz

1999-02-01T23:59:59.000Z

373

Spectrum of geomagnetic activity in the period range 560 days: possible lunar inuences  

E-Print Network (OSTI)

Spectrum of geomagnetic activity in the period range 5±60 days: possible lunar in¯uences J. StrÏ es (if any) is not mediated by geomag- netic activity. Key words. Geomagnetism and paleomagnetism á Time Introduction Geomagnetic activity displays various regular and irregular variations. These have been

Paris-Sud XI, Université de

374

On the periodic variations of geomagnetic activity indices Ap and ap H. Schreiber  

E-Print Network (OSTI)

On the periodic variations of geomagnetic activity indices Ap and ap H. Schreiber Institut fu� r 1997 / Accepted: 2 December 1997 Abstract. Yearly averages of geomagnetic activity indi- ces Ap Solar wind ± magnetosphere interaction 1 Introduction Geomagnetic activity is generated

Paris-Sud XI, Université de

375

Spectrum of Long-Period Fluctuations of Surface Wind at Marcus Island  

Science Conference Proceedings (OSTI)

Spectra of the surface wind at Marcus Island (24°N, 154°E) in the subtropical Pacific area wore constructed over a wide frequency range from 10?1 to 5 × 10?5 Hz (periods from 6 h to about three years). The major kinetic energy peak is found at a ...

Yukihiro Mori

1980-09-01T23:59:59.000Z

376

The discovery of plutonium reorganized the periodic table and aided the discovery of new elements  

Science Conference Proceedings (OSTI)

The modern Periodic Table derives principally from the work of the great Russian scientist Dimitri Mendeleev, who in 1869 enunciated a 'periodic law' that the properties of the elements are a periodic function of their atomic weights, and arranged the 65 known elements in a 'periodic table'. Fundamentally, every column in the main body of the Periodic Table is a grouping of elements that display similar chemical and physical behavior. Similar properties are therefore exhibited by elements with widely different mass. Chemical periodicity is central to the study of chemistry, and no other generalization comes close to its ability to systematize and rationalize known chemical facts. With the development of atomic theory, and an understanding of the electronic structure of atoms, chemical periodicity and the periodic table now find their natural explanation in the electronic structure of atoms. Moving from left to right along any row, the elements are arranged sequentially according to nuclear charge (the atomic number). Electrons counter balance that nuclear charge, hence each successive element has one more electron in its configuration. The electron configuration, or distribution of electrons among atomic orbitals, may be determined by application of the Pauli principle (paired spin in the same orbital) and the aufbau principle (which outlines the order of filling of electrons into shells of orbitals - s, p, d, f, etc.) such that in a given atom, no two electrons may have all four quantum numbers identical. In 1939, only three elements were known to be heavier than actinium: thorium, protactinium, and uranium. All three exhibited variable oxidation states and a complex chemistry. Thorium, protactinium and uranium were assumed to be d-transition metals and were placed in the Periodic Table under hafnium, tantalum, and tungsten, respectively. By 1940, McMillan and Abelson bombarded uranium atoms with slow neutrons and successfully identified atoms of element 93, which they named neptunium after the planet Neptune. This rapidly set the stage for the discovery of the next succeeding element, plutonium (Seaborg, McMillan, Kennedy, and Wahl, 1940), named after the next planet away from the Sun, Pluto. The newly discovered elements were presumed to fit comfortably in the Periodic Table under rhenium and osmium, respectively. However, subsequent tracer chemical experiments showed that neptunium and plutonium were closer in their chemical properties to uranium than their presumed homologues, rhenium and osmium. Spectroscopic evidence also indicated that the new elements were not typical transition elements, but had f-electrons in their valence shell. Thus, several researchers, including McMillan and Wahl, and Zachariasen at Los Alamos, suggested that these elements might be part of a second inner-transition series in which the 5f-electron subshell was being filled. It was not clear, however, where the new series would begin. McMillian had proposed a 'uraninide series' that started with neptunium, but attempts to isolate elements with atomic numbers 95 and 96 based on assumed similarities to uranium were unsuccessful. Both Wahl and Zacharias en had proposed a thoride series that started with protactinium. In 1944, Seaborg proposed that the series started with thorium, and that all of the elements heavier than actinium constituted an 'actinide' series similar to the lanthanides. Because the 5f-shell began filling in the same relative position as the 4f-shell, the electronic configuration of elements in the two series would be similar. Guided by the hypothesis that elements 95 and 96 were homologues of europium and gadolinium, new experiments were designed and the elements were uniquely synthesized and separated from all others. The new elements were subsequently named americium and curium. Seaborg's 'Actinide Concept' thus played a major role in the discovery of the transplutonium elements. It provided the framework that supported synthesis, isolation, and identification of the succeeding actinide elements berkelium through lawrenci

Clark, David L [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

377

PERIODIC STRUCTURE IN THE MEGAPARSEC-SCALE JET OF PKS 0637-752  

SciTech Connect

We present 18 GHz Australia Telescope Compact Array imaging of the megaparsec-scale quasar jet PKS 0637-752 with angular resolution {approx}0.''58. We draw attention to a spectacular train of quasi-periodic knots along the inner 11'' of the jet, with average separation {approx}1.1 arcsec (7.6 kpc projected). We consider two classes of model to explain the periodic knots: those that involve a static pattern through which the jet plasma travels (e.g., stationary shocks) and those that involve modulation of the jet engine. Interpreting the knots as re-confinement shocks implies the jet kinetic power Q{sub jet} {approx} 10{sup 46} erg s{sup -1}, but the constant knot separation along the jet is not expected in a realistic external density profile. For models involving modulation of the jet engine, we find that the required modulation period is 2 Multiplication-Sign 10{sup 3} yr < {tau} < 3 Multiplication-Sign 10{sup 5} yr. The lower end of this range is applicable if the jet remains highly relativistic on kiloparsec scales, as implied by the IC/CMB model of jet X-ray emission. We suggest that the periodic jet structure in PKS 0637-752 may be analogous to the quasi-periodic jet modulation seen in the microquasar GRS 1915+105, believed to result from limit cycle behavior in an unstable accretion disk. If variations in the accretion rate are driven by a binary black hole, the predicted orbital radius is 0.7 pc {approx}< a {approx}< 30 pc, which corresponds to a maximum angular separation of {approx}0.1-5 mas.

Godfrey, L. E. H.; Ekers, R. [International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987, Perth, WA 6102 (Australia); Lovell, J. E. J. [CSIRO Astronomy and Space Science, Australia Telescope National Facility, P.O. Box 76, Epping, NSW 2121 (Australia); Burke-Spolaor, S. [NASA Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Bicknell, G. V.; Jauncey, D. L. [Research School of Astronomy and Astrophysics, Australian National University, Cotter Road, Weston, ACT 2611 (Australia); Birkinshaw, M.; Worrall, D. M.; Schwartz, D. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Marshall, H. L. [Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Gelbord, J. [Department of Physics, Durham University, South Road, Durham, DH1 3LE (United Kingdom); Perlman, E. S. [Physics and Space Sciences Department, Florida Institute of Technology, 150 West University Boulevard, Melbourne, FL 32901 (United States); Georganopoulos, M., E-mail: L.Godfrey@curtin.edu.au [Department of Physics, Joint Center for Astrophysics, University of Maryland-Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250 (United States)

2012-10-20T23:59:59.000Z

378

Periodicities In The X-Ray Intensity Variations of TV Columbae: An Intermediate Polar  

E-Print Network (OSTI)

We present results from a temporal analysis of the longest and the most sensitive X-ray observations of TV Columbae--an intermediate polar. The observations were carried out with the RXTE PCA, ROSAT PSPC, and ASCA. Data were analyzed using a 1-dimensional CLEAN and Bayesian algorithms. The presence of a nearly sinusoidal modulation due to the spin of the white dwarf is seen clearly in all the data, confirming the previous reports based on the EXOSAT data. An improved period of 1909.7+/-2.5s is derived for the spin from the RXTE data.The binary period of 5.5hr is detected unambiguously in X-rays for the first time. Several side-bands due to the interaction of these periods are observed in the power spectra, thereby suggesting contributions from both the disk-fed and the stream-fed accretion for TV Col. The accretion disk could perhaps be precessing as side-bands due to the influence of 4 day period on the orbital period are seen. The presence of a significant power at certain side-bands of the spin frequency indicates that the emission poles are asymmetrically located. The strong power at the orbital side-bands seen in both the RXTE and ROSAT data gives an indication for an absorption site fixed in the orbital frame. Both the spin and the binary modulation are found to be energy-dependent. Increased hardness ratio during a broad dip in the intensity at binary phase of 0.75--1.0 confirms the presence of a strong attenuation due to additional absorbers probably from an impact site of the accretion stream with the disk or magnetosphere. Hardness ratio variations and the energy dependent modulation depth during the spin modulation can be explained by partially covered absorbers in the path of X-ray emission region in the accretion stream.

V. R. Rana; K. P. Singh; E. M. Schlegel; P. Barrett

2003-11-23T23:59:59.000Z

379

A Cradle to Grave Framework for Environmental Assessment of Photovoltaic Systems  

E-Print Network (OSTI)

cost corresponding to an increase in energy payback time ofEnergy Payback Times, Greenhouse Gas Emissions and External Costs:

Zhang, Teresa; Dornfeld, David

2010-01-01T23:59:59.000Z

380

Water conservation study (water and energy) Energy Engineering Analysis Program (EEAP) FY94s Fort Knox, Kentucky. Volume 1. Final report  

SciTech Connect

Systems Corp surveyed and completed water and energy analyses for 650 representative buildings at Fort Knox, categorized as unaccompanied personnel housing, community facilities, administrative facilities, maintenance facilities, training facilities, family housing, post laundry, hospital, heating plants, cooling towers, water treatment plants and water distribution systems. The water and energy conservation opportunities (ECOs) evaluated are listed in Table 1.1. Cost estimates were prepared using Means Data for Windows Spreadsheets, Version 2.Oa. Life cycle cost analyses were performed using the Life Cycle Cost in Design (LCCID) computer program. Project descriptions and DDl39l forms were prepared for four Energy Conservation Investment Program (ECIP) projects. The total of the four projects that were developed represent $893K in annual savings and a total discounted savings of $13.4M in the twenty year life of the projects. The simple paybacks average 5.6 years and the savings to investment (SIR) for the four ECIP projects average 2.8. In addition, three Federal Energy Management Program (FEMP) projects were developed. FEMP Project 1 is the replacement of all of the steam traps in the post laundry with a payback of 0.5 years and an SIR of 40. FEMP Project 2 is heating distribution system manhole repairs with a 3.4 year payback and an SIR of 5.5. FEMP Project 3 is the installation of wells to provide irrigation water for Lindsey and Anderson Greens with a 5.1 year payback and an SIR of 2.9.

1994-12-30T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" 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

Influence of Long-Period Variations of Total Ozone Content on Climate  

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

Influence of Long-Period Variations of Total Ozone Content on Climate Influence of Long-Period Variations of Total Ozone Content on Climate Change in Twentieth Century Zuev, V Institute of Atmospheric Optics Zueva, N. Institute of Atmospheric Optics Bondarenko, S Institute of Atmospheric Optics Category: Atmospheric State and Surface It is shown that during long-term total ozone decrease everywhere at middle and high latitudes there takes place the destruction of balance in global carbon cycle first of all due to reduction of photosynthetical СО2 sink in consequence of UV-B radiation stress of vegetable biota. As a result, СО2 concentrations in the atmosphere considerably increase, enhancing the "greenhouse effect." Based on reconstruction of behavior of stratospheric ozone between 1600 and 2000 from dendrochronologic data, it is shown that

382

DOE Extends Comment Period on Notice of Inquiry Under the Energy  

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

October 14, 2010 - 10:17am October 14, 2010 - 10:17am Addthis Today, in response to a formal request, General Counsel Scott Blake Harris approved a second and final extension of the public comment period to November 30, 2010 on DOE's Notice of Inquiry (75 FR 43945) soliciting comment on the development of regulations to carry out section 934 of the Energy Independence and Security Act of 2007, which implements the Convention on Supplementary Compensation for Nuclear Damage. The original deadline of September 27, 2010 was extended to October 27, 2010 (75 FR 51986) in response to public comment. The signed extension provided here will be published shortly in the Federal Register. Addthis Related Articles DOE Extends Comment Period on Notice of Inquiry Under the Energy Independence and Security Act

383

Report Period: EIA ID NUMBER: Instructions: (e.g., Street Address, Bldg, Floor, Suite)  

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

Report Period: Report Period: EIA ID NUMBER: Instructions: (e.g., Street Address, Bldg, Floor, Suite) Secure File Transfer option available at: (e.g., PO Box, RR) Electronic Transmission: The PC Electronic Data Reporting Option (PEDRO) is available. Zip Code: - If interested in software, call (202) 586-9659. Email form to: Fax form to: (202) 586-9772 - - Mail form to: Oil & Gas Survey - - U.S. Department of Energy Ben Franklin Station PO Box 279 Washington, DC 20044-0279 Questions? Call toll free: 1-800-638-8812 OOG.SURVEYS@eia.doe.gov Contact Name: Version No.: 2013.01 Date of this Report: Mo Day State: Year Phone No.: DOMESTIC CRUDE OIL FIRST PURCHASE REPORT Company Name: A completed form must be filed by the 30th calendar day following the end of the report

384

Interferometric hard x-ray phase contrast imaging at 204 nm grating period  

SciTech Connect

We report on hard x-ray phase contrast imaging experiments using a grating interferometer of approximately 1/10th the grating period achieved in previous studies. We designed the gratings as a staircase array of multilayer stacks which are fabricated in a single thin film deposition process. We performed the experiments at 19 keV x-ray energy and 0.8 {mu}m pixel resolution. The small grating period resulted in clear separation of different diffraction orders and multiple images on the detector. A slitted beam was used to remove overlap of the images from the different diffraction orders. The phase contrast images showed detailed features as small as 10 {mu}m, and demonstrated the feasibility of high resolution x-ray phase contrast imaging with nanometer scale gratings.

Wen Han; Gomella, Andrew A.; Miao, Houxun; Lynch, Susanna K. [Imaging Physic Laboratory, Biophysics and Biochemistry Center, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland 20892 (United States); Wolfe, Douglas E. [Applied Research Laboratory, Penn State University, State College, Pennsylvania 16804 (United States); Xiao Xianghui; Liu Chian [X-Ray Science Division, Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Morgan, Nicole [National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892 (United States)

2013-01-15T23:59:59.000Z

385

Tunneling of Massive Dirac Fermions in Graphene through Time-periodic Potential  

E-Print Network (OSTI)

The energy spectrum of graphene sheet with a single barrier structure having a time periodic oscillating height and subjected to magnetic field is analyzed. The corresponding transmission is studied as function of the obtained energy and the potential parameters. Quantum interference within the oscillating barrier has an important effect on quasiparticles tunneling. In particular the time-periodic electromagnetic field generates additional sidebands at energies \\epsilon + l\\hbar \\omega (l=0,\\pm 1, \\cdots) in the transmission probability originating from the photon absorption or emission within the oscillating barrier. Due to numerical difficulties in truncating the resulting coupled channel equations we limited ourselves to low quantum channels, i.e. l=0,\\pm 1.

Ahmed Jellal; Miloud Mekkaoui; El Bouazzaoui Choubabi; Hocine Bahlouli

2013-11-29T23:59:59.000Z

386

Analytical Chemistry Division. Annual progress report for period ending December 31, 1981  

Science Conference Proceedings (OSTI)

The functions of the Analytical Chemistry Division fall into three general categories: (1) analytical research, development, and implementation; (2) programmatic research, development and utilization; (3) technical support. The Division is organized into five major sections each of which may carry out any type of work falling into the thre categories mentioned above. Chapters 1 through 5 of this report highlight progress within the five sections which are: analytical methodology; mass and emission spectrometry; analytical technical support; bio/organic analysis section; and nuclear and radiochemical analysis. A short summary introduces each chapter to indicate work scope. Information about quality assurance and safety programs is presented in Chapter 6, along with a tabulation of analyses rendered. Chapter 7 covers supplementary activities. Chapter 8 is on presentation of research results (publications, articles reviewed or referred for periodicals). Approximately 56 articles, 31 proceedings publications and 33 reports have been published, and 119 oral presentations given during this reporting period.

Lyon, W. S. [ed.

1982-04-01T23:59:59.000Z

387

Lattice-matching periodic array of misfit dislocations: Heteroepitaxy of Bi(111) on Si(001)  

SciTech Connect

In spite of the large lattice mismatch between Bi and Si, it is possible to grow expitaxial Bi(111) films on Si(001) substrates, which are atomically smooth and almost free of defects. The remaining lattice mismatch of 2.3% is accommodated by the formation of a periodic array of edge-type dislocations confined to the interface. The strain fields surrounding each dislocation cause a weak periodic surface undulation, which results in the splitting of all spots in low-energy electron diffraction (LEED). From a high resolution spot profile analyzing LEED study, an amplitude of 0.66 A and a separation of 200 A were derived. Comparison with elasticity theory gives a full lattice spacing of the Si surface as a Burgers vector b-vector=(1/2)[110] of the misfit dislocation array. With increasing thickness, the Bi film relaxes toward its bulk lattice constant.

Jnawali, G.; Hattab, H.; Meyer zu Heringdorf, F.-J.; Krenzer, B.; Horn-von Hoegen, M. [Department of Physics and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen, Lotharstrasse 1, 47048 Duisburg (Germany)

2007-07-15T23:59:59.000Z

388

Glann Seaborg's Contributions to Heavy Element Science and the Periodic Table  

Science Conference Proceedings (OSTI)

In celebrating the centennial anniversary of the birth of Glenn T. Seaborg it is fitting that we recount and pay tribute to his legacy. Many know of the scientific accomplishments of this man who became a legend and anyone who has attended his lectures can attest to how informative, educational, and entertaining he was. He had a beguiling and whimsical sense of humor and used this to drive home his points and share his passion and quest for discovery. The periodic table is a fundamental cornerstone of science and remains a central unifying principal. Seaborg was the architect of the actinide series of elements and their proper placement in the periodic table and co-discoverer of ten transuranium elements - one of which bears his name, element 106, seaborgium. The work and achievements of this Nobel laureate have touched the lives of many and his legacy will continue for generations to come.

Hobart, David E. [Los Alamos National Laboratory

2012-08-17T23:59:59.000Z

389

Periodic dielectric structure for production of photonic band gap and method for fabricating the same  

DOE Patents (OSTI)

A method is disclosed for fabricating a periodic dielectric structure which exhibits a photonic band gap. Alignment holes are formed in a wafer of dielectric material having a given crystal orientation. A planar layer of elongate rods is then formed in a section of the wafer. The formation of the rods includes the step of selectively removing the dielectric material of the wafer between the rods. The formation of alignment holes and layers of elongate rods and wafers is then repeated to form a plurality of patterned wafers. A stack of patterned wafers is then formed by rotating each successive wafer with respect to the next-previous wafer, and then placing the successive wafer on the stack. This stacking results in a stack of patterned wafers having a four-layer periodicity exhibiting a photonic band gap. 42 figures.

Ozbay, E.; Tuttle, G.; Michel, E.; Ho, K.M.; Biswas, R.; Chan, C.T.; Soukoulis, C.

1995-04-11T23:59:59.000Z

390

Homogenization of a thin plate reinforced with periodic families of rigid rods  

SciTech Connect

The asymptotics of the solution to the elastic bending problem for a thin plate reinforced with several periodic families of closely spaced but disjoint rods are constructed and justified, the result of homogenization being substantially different from the case when the rods are welded together into a single periodic mesh. The material in the rods is assumed to be appreciably more rigid than that in the plate. An averaged fourth-order differential operator is obtained from summing the nonelliptic operators generated by each of the families of the rods. This operator is shown to be elliptic if and only if the rods from at least two families are nonparallel. As a simplified example, the paper examines a similar stationary heat conduction problem. Bibliography: 24 titles.

Nazarov, Sergei A; Sweers, Guido H; Slutskij, Andrey S

2011-08-31T23:59:59.000Z

391

The periodic table of topological insulators and superconductors: the loop sequence approach  

E-Print Network (OSTI)

In this work, a complete homotopic interpretation on the periodic table of topological insulators and superconductors has been derived by establishing the loop sequence of the corresponding classifying spaces. In our approach, each classifying spaces has been regarded as a fiber bundle defined on one point, following that the loop relationship between the classifying spaces in the same symmetric class has been built and proved. Meanwhile, the loop sequence between the classifying spaces with the same spatial dimension has also been developed based on the minimal geodesic approximation. Finally, by building the loop sequence for general dimensions and symmetric classes, a complete homotopic understanding about the whole periodic table of any classifying spaces is achieved. Our approach provides a unified way to interpret the topological relationship between any free-fermion systems.

Chunbo Zhao

2013-11-03T23:59:59.000Z

392

Report Period: EIA ID NUMBER: Appendix A: Mailing Address: Appendix B:  

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

Report Period: Report Period: EIA ID NUMBER: Appendix A: Mailing Address: Appendix B: Zip Code - Secure File Transfer option available at: - - - - Email form to: OOG.SURVEYS@eia.doe.gov Fax form to: (202) 586-9772 Email address: Oil & Gas Survey U.S. Department of Energy Ben Franklin Station PO Box 279 Washington, DC 20044-0279 Questions? Call toll free: 1-800-638-8812 1. Total Acquisitions (Enter the total volume of foreign crude oil acquired during the report month for importation into the United States. This is the sum of column (l), Part III, excluding resubmission.) 2. Offshore Inventories (Enter the total volume of foreign oil owned by the firm, for eventual importation into the United States which is held in storage outside the United States and/or is enroute to the United States as of the

393

Hydraulic Characteristics of the Lower Snake River During Periods of Juvenile Fall Chinook Migration  

Science Conference Proceedings (OSTI)

This report documents a four-year study to assess hydraulic conditions in the lower Snake River. The work was conducted for the Bonneville Power Administration, U.S. Department of Energy, by the Pacific Northwest National Laboratory. Cold water released from the Dworshak Reservoir hypolimnion during mid- to late-summer months cools the Clearwater River far below equilibrium temperature. The volume of released cold water augments the Clearwater River, and the combined total discharge is on the order of the Snake River discharge when the two rivers meet at their confluence near the upstream edge of Lower Granite Reservoir. With typical temperature differences between the Clearwater and Snake rivers of 10°C or more during July and August, the density difference between the two rivers during summer flow augmentation periods is sufficient to stratify Lower Granite Reservoir as well as the other three reservoirs downstream. Because cooling of the river is desirable for migrating juvenile fall Chinook salmon (Oncorhynchus tshawytscha) during this same time period, the amount of mixing and cold water entrained into Lower Granite Reservoir’s epilimnion at the Clearwater/Snake River confluence is of key biological importance to juvenile fall Chinook salmon. Data collected during this project indicates the three reservoirs downstream of Lower Granite also stratify as direct result of flow augmentation from Dworshak Reservoir. These four lower Snake reservoirs are also heavily influenced by wind forcing at the water’s surface, and during periods of low river discharge, often behave like a two-layer lake. During these periods of stratification, lower river discharge, and wind forcing, the water in the upper layer of the reservoir is held in place or moves slightly upstream. This upper layer is also exposed to surface heating and may warm up to temperatures close to equilibrium temperature. The depth of this upper warm layer and its direction of travel may also be of key biological importance to juvenile fall Chinook salmon. This report describes field data collection, modeling, and analysis of hydrodynamic and temperature conditions in the Lower Granite Reservoir during the summer flow augmentation periods of 2002, 2003, and 2004 plus a brief one-week period in 2005 of Lower Monumental, Little Goose, and Lower Granite Reservoirs. Circulation patterns in all four lower Snake River reservoirs were numerically simulated for periods of 2002, 2003, 2004, and 2005 using CE-QUAL-W2. Simulation results show that these models are sufficiently capable of matching diurnal and long term temperature and velocity changes in the reservoirs. In addition, the confluence zone of the Clearwater and Snake rivers was modeled using the 3-D model Flow3-D. This model was used to better understand mixing processing and entrainment. Once calibrated and validated, the reservoir models were used to investigate downstream impacts of alternative reservoir operation schemes, such as increasing or decreasing the ratio of Clearwater to Snake discharge. Simulation results were also linked with the particle tracking model FINS to better understand alterations of integrated metrics due to alternative operation schemes. These findings indicate that significant alterations in water temperature throughout the lower Snake River are possible by altering hypolimnetic discharges from Dworshak Reservoir and may have a significant impact on the behavior of migrating juvenile fall Chinook salmon during periods of flow augmentation.

Cook, Chris B.; Dibrani, Berhon; Richmond, Marshall C.; Bleich, Matthew D.; Titzler, P. Scott; Fu, Tao

2006-01-30T23:59:59.000Z

394

Periodic dielectric structure for production of photonic band gap and method for fabricating the same  

DOE Patents (OSTI)

A method for fabricating a periodic dielectric structure which exhibits a photonic band gap. Alignment holes are formed in a wafer of dielectric material having a given crystal orientation. A planar layer of elongate rods is then formed in a section of the wafer. The formation of the rods includes the step of selectively removing the dielectric material of the wafer between the rods. The formation of alignment holes and layers of elongate rods and wafers is then repeated to form a plurality of patterned wafers. A stack of patterned wafers is then formed by rotating each successive wafer with respect to the next-previous wafer, and then placing the successive wafer on the stack. This stacking results in a stack of patterned wafers having a four-layer periodicity exhibiting a photonic band gap.

Ozbay, Ekmel (Ames, IA); Tuttle, Gary (Ames, IA); Michel, Erick (Ames, IA); Ho, Kai-Ming (Ames, IA); Biswas, Rana (Ames, IA); Chan, Che-Ting (Ames, IA); Soukoulis, Costas (Ames, IA)

1995-01-01T23:59:59.000Z

395

Solid State Division progress report for period ending March 31, 1997  

SciTech Connect

This report covers research progress in the Solid State Division from April 1, 1995, through March 31, 1997. During this period, the division conducted a broad, interdisciplinary materials research program in support of Department of Energy science and technology missions. The report includes brief summaries of research activities in condensed matter theory, neutron scattering, synthesis and characterization of materials, ion beam and laser processing, and the structure of solids and surfaces. An addendum includes listings of division publications and professional activities.

Green, P.H.; Hinton, L.W. [eds.] [eds.

1997-12-01T23:59:59.000Z

396

NIOBATE DE LITHIUM PERIODIQUEMENT POLARISE A COURTE PERIODE ET PERSPECTIVES D'APPLICATION  

E-Print Network (OSTI)

NIOBATE DE LITHIUM PERIODIQUEMENT POLARISE A COURTE PERIODE ET PERSPECTIVES D'APPLICATION Pascal.Baldi@unice.fr R�SUM� Le niobate de lithium périodiquement polarisé (PPLN) sur des périodes courantes de 6 à 22 µm présentés, ainsi que quelques exemples d'applications. MOTS-CLEFS : Niobate de lithium polarisé

397

Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed  

DOE Patents (OSTI)

A novel method of electric field flow fractionation for separating solute molecules from a carrier solution is disclosed. The method of the invention utilizes an electric field that is periodically reversed in polarity, in a time-dependent, wave-like manner. The parameters of the waveform, including amplitude, frequency and wave shape may be varied to optimize separation of solute species. The waveform may further include discontinuities to enhance separation.

Stevens, Fred J. (Naperville, IL)

1992-01-01T23:59:59.000Z

398

Gang FTP scheduling of periodic and parallel rigid real-time tasks  

E-Print Network (OSTI)

In this paper we consider the scheduling of periodic and parallel rigid tasks. We provide (and prove correct) an exact schedulability test for Fixed Task Priority (FTP) Gang scheduler sub-classes: Parallelism Monotonic, Idling, Limited Gang, and Limited Slack Reclaiming. Additionally, we study the predictability of our schedulers: we show that Gang FJP schedulers are not predictable and we identify several sub-classes which are actually predictable. Moreover, we extend the definition of rigid, moldable and malleable jobs to recurrent tasks.

Goossens, Joël

2010-01-01T23:59:59.000Z

399

Solid State Division progress report for period ending September 30, 1984  

SciTech Connect

During the reporting period, relatively minor changes have occurred in the research areas of interest to the Division. Nearly all the research of the Division can be classified broadly as mission-oriented basic research. Topics covered include: theoretical solid state physics; surface and near-surface properties of solids; defects in solids; transport properties of solids; neutron scattering; and preparation and characterization of research materials. (GHT)

Green, P.H.; Watson, D.M. (eds.)

1985-03-01T23:59:59.000Z

400

Precise Measurements of the Kilohertz Quasi-Periodic Oscillations in 4U 1728-34  

E-Print Network (OSTI)

We have analyzed seventeen observations of the low-mass X-ray binary and atoll source 4U 1728-34, carried out by the Rossi X-ray Timing Explorer in 1996 and 1997. We obtain precise measurements of the frequencies of the two simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) in this source. We show that the frequency separation between the two QPO, $\\Delta \

Mariano Mendez; Michiel van der Klis

1999-03-19T23:59:59.000Z

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401

Short-rotation woody-crops program. Quarterly progress report for period ending May 31, 1981  

DOE Green Energy (OSTI)

Progress of twenty projects in the Short Rotation Woody Crops Program is summarized for the period March 1 through May 31, 1981. Individual quarterly reports included from each of the projects discuss accomplishments within specific project objectives and identify recent papers and publications resulting from the research. The major project activities are species screening and genetic selection, stand establishment and cultural treatment, and harvest, collection, transportation, and storage.

Cushman, J.H.; Ranney, J.W.

1982-04-01T23:59:59.000Z

402

Short-rotation woody-crops program. Quarterly progress report for period ending August 31, 1981  

DOE Green Energy (OSTI)

Progress of twenty-one projects in the Short Rotation Woody Crops Program is summarized for the period June 1 through August 31, 1981. Individual quarterly reports included from each of the projects discuss accomplishments within specific project objectives and identify recent papers and publications resulting from the research. The major program activities are species screening and genetic selection, stand establishment and cultural treatment, and harvest, collection, transportation, and storage.

Cushman, J.H.; Ranney, J.W.

1982-04-01T23:59:59.000Z

403

Green's function asymptotics near the internal edges of spectra of periodic elliptic operators. Spectral edge case  

E-Print Network (OSTI)

Precise asymptotics known for the Green's function of the Laplace operator have found their analogs for periodic elliptic operators of the second order at and below the bottom of the spectrum. Due to the band-gap structure of the spectra of such operators, the question arises whether similar results can be obtained near or at the edges of spectral gaps. As the result of this work shows, this is possible at a spectral edge in dimensions d>2.

Peter Kuchment; Andrew Raich

2011-10-02T23:59:59.000Z

404

Engineering Physics and Mathematics Division progress report for period ending December 31, 1992  

SciTech Connect

In this report, our research is described through abstracts of journal articles, technical reports, and presentations organized into sections following the five major operating units in the division: Mathematical Sciences, Intelligent Systems, Nuclear Data and Measurement Analysis, Nuclear Analysis and Shielding, and the Engineering Physics Information Centers. Each section begins with an introduction highlighting honors, awards, and significant research accomplishments in that unit during the reporting period.

Ward, R.C.

1993-05-01T23:59:59.000Z

405

Analysis of bifurcation in switched dynamical systems with periodically moving borders  

E-Print Network (OSTI)

This paper describes a global method for analyzing the bifurcation phenomena in switched dynamical systems whose switching borders are varying periodically with time. The type of systems under study covers most of power electronics circuits. In particular, the complex bifurcation behavior of a voltage feedback buck converter is studied in detail. The analytical method developed in this paper allows bifurcation scenarios to be clearly revealed in any chosen parameter space. 1.

Yue Ma; Hiroshi Kawakami

2004-01-01T23:59:59.000Z

406

Locking-time and Information Capacity in CML with Statistical Periodicity  

E-Print Network (OSTI)

In this work we address the statistical periodicity phenomenon on a coupled map lattice. The study was done based on the asymptotic binary patterns. The pattern multiplicity gives us the lattice information capacity, while the entropy rate allows us to calculate the locking-time. Our results suggest that the lattice has low locking-time and high capacity information when the coupling is weak. This is the condition for the system to reproduce a kind of behavior observed in neural networks.

Romeu Miqueias Szmoski; Rodrigo Frehse Pereira; Fabiano Alan Serafim Ferrari; Sandro Ely de Souza Pinto

2010-11-24T23:59:59.000Z

407

Neutron Physics Division progress report for period ending October 31, 1975  

SciTech Connect

Included are 127 abstracts and summaries of papers and reports published or presented at scientific meetings during the reporting period, which extends from August 31, 1974 to October 31, 1975. The primary areas of study are the liquid-metal fast breeder reactor program, the gas cooled fast breeder reactor program, the controlled thermonuclear reactor program, the high-energy accelerator shielding program, and the defense nuclear agency program. (BJG)

Maienschein, F.C.

1976-01-01T23:59:59.000Z

408

Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations  

E-Print Network (OSTI)

(abridged) We present new absolute trigonometric parallaxes and relative proper motions for nine Galactic Cepheid variable stars: l Car, zeta Gem, beta Dor, W Sgr, X Sgr, Y Sgr, FF Aql, T Vul, and RT Aur. We obtain these results with astrometric data from Fine Guidance Sensor 1r, a white-light interferometer on Hubble Space Telescope. We find absolute parallaxes with an average sigma_pi/pi = 8%. Two stars (FF Aql and W Sgr) required the inclusion of binary astrometric perturbations, providing Cepheid mass estimates. With these parallaxes we compute absolute magnitudes in V, I, K, and Wesenheit W_{VI} bandpasses corrected for interstellar extinction and Lutz-Kelker-Hanson bias. Adding our previous absolute magnitude determination for delta Cep, we construct Period-Luminosity relations for ten Galactic Cepheids. We compare our new Period-Luminosity relations with those adopted by several recent investigations, including the Freedman and Sandage H_0 projects. Adopting our Period-Luminosity relationship would tend to increase the Sandage H_$ value, but leave the Freedman H_0 unchanged. Comparing our Galactic Cepheid PLR with those derived from LMC Cepheids, we find the slopes for K and W_{VI} identical in the two galaxies within their respective errors. Our data lead to a W_{VI} distance modulus for the Large Magellanic Cloud, m-M = 18.50\\pm0.03, uncorrected for any metallicity effects. Applying recently derived metalllcity corrections yields a corrected LMC distance modulus of (m-M)_0=18.40\\pm0.05. Comparing our Period-Luminosity relationship to solar-metallicity Cepheids in NGC 4258 results in a distance modulus, 29.28 \\pm 0.08, which agrees with that derived from maser studies.

G. Fritz Benedict; Barbara E. McArthur; Michael W. Feast; Thomas G. Barnes; Thomas E. Harrison; Richard J. Patterson; John W. Menzies; Jacob L. Bean; Wendy L. Freedman

2006-12-16T23:59:59.000Z

409

Energy levels of periodic solutions of the circular 2+2 Sitnikov problem  

E-Print Network (OSTI)

We study a 2+2 body problem introduced in a previous paper as the circular double Sitnikov problem. Since the secondary bodies are moving on the same perpendicular line where evolve the primaries, almost every solution is a collision orbit. We extend the solutions beyond collisions with a symplectic regularization and study the set of energy surfaces that contain periodic orbits and their foliations .

Jiménez-Pérez, H

2009-01-01T23:59:59.000Z

410

No periodicity revealed for an "eclipsing" ultraluminous supersoft X-ray source in M81  

E-Print Network (OSTI)

Luminous supersoft X-ray sources found in the Milky Way and Magellanic Clouds are likely white dwarfs that steadily or cyclically burn accreted matter on their surface, which are promising type Ia supernova progenitors. Observations of distant galaxies with Chandra and XMM-Newton have revealed supersoft sources that are generally hotter and more luminous, including some ultraluminous supersoft sources (ULSs) that are possibly intermediate mass black holes of a few thousand solar masses. In this paper we report our X-ray spectral and timing analysis for M81-ULS1, an ultraluminous supersoft source in the nearby spiral galaxy M81. M81-ULS1 has been persistently supersoft in 17 Chandra ACIS observations spanning six years, and its spectrum can be described by either a $kT_{bb}\\approx70$ eV blackbody for a $\\sim1.2M_\\odot$ white dwarf, or a $kT_{in} \\approx 80$ eV multicolor accretion disk for a $\\gtrsim10^3M_\\odot$ intermediate mass black hole. In two observations, the light curves exhibited dramatic flux drop/rise on time scales of $10^3$ seconds, reminiscent of eclipse ingress/egress in eclipsing X-ray binaries. However, the exhaustive search for periodicity in the reasonable range of 50 ksec to 50 days failed to reveal an orbital period. The failure to reveal any periodicity is consistent with the long period ($\\ge30$ yrs) predicted for this system given the optical identification of the secondary with an asymptotic giant star. Also, the eclipse-like dramatic flux changes in hours are hard to explain under the white dwarf model, but can in principle be explained by disk temperature changes induced by accretion rate variations under the intermediate mass black hole model.

Jifeng Liu

2008-02-21T23:59:59.000Z

411

Homogenization of a catalyst layer model for periodically distributed pore geometries in PEM fuel cells  

E-Print Network (OSTI)

We formally derive an effective catalyst layer model comprising the reduction of oxygen for periodically distributed pore geometries. By assumption, the pores are completely filled with water and the surrounding walls consist of catalyst particles which are attached to an electron conducting microstructure. The macroscopic transport equations are established by a multi-scale approach, based on microscopic phenomena at the pore level, and serve as a first step toward future optimization of catalyst layer designs.

Schmuck, Markus

2012-01-01T23:59:59.000Z

412

Homogenization of a catalyst layer model for periodically distributed pore geometries in PEM fuel cells  

E-Print Network (OSTI)

We formally derive an effective catalyst layer model comprising the reduction of oxygen for periodically distributed pore geometries. By assumption, the pores are completely filled with water and the surrounding walls consist of catalyst particles which are attached to an electron conducting microstructure. The macroscopic transport equations are established by a multi-scale approach, based on microscopic phenomena at the pore level, and serve as a first step toward future optimization of catalyst layer designs.

Markus Schmuck; Peter Berg

2012-04-30T23:59:59.000Z

413

Property:Building/SPPurchasedEngyForPeriodMwhYrElctrtyTotal | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrElctrtyTotal SPPurchasedEngyForPeriodMwhYrElctrtyTotal Jump to: navigation, search This is a property of type String. Electricity, total Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrElctrtyTotal" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 1399.0 + Sweden Building 05K0002 + 686.9 + Sweden Building 05K0003 + 321.8 + Sweden Building 05K0004 + 1689.9 + Sweden Building 05K0005 + 122.6 + Sweden Building 05K0006 + 843.1 + Sweden Building 05K0007 + 1487.0 + Sweden Building 05K0008 + 315.0 + Sweden Building 05K0009 + 1963.0 + Sweden Building 05K0010 + 66.52 + Sweden Building 05K0011 + 391.0 + Sweden Building 05K0012 + 809.65 + Sweden Building 05K0013 + 1199.0 + Sweden Building 05K0014 + 227.66 +

414

Property:Building/SPPurchasedEngyForPeriodMwhYrDstrtHeating | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrDstrtHeating SPPurchasedEngyForPeriodMwhYrDstrtHeating Jump to: navigation, search This is a property of type String. District heating Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrDstrtHeating" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 2067.0 + Sweden Building 05K0002 + 492.2 + Sweden Building 05K0003 + 473.4 + Sweden Building 05K0004 + 1763.0 + Sweden Building 05K0005 + 605.0 + Sweden Building 05K0006 + 1727.0 + Sweden Building 05K0007 + 1448.0 + Sweden Building 05K0008 + 844.0 + Sweden Building 05K0009 + 2176.0 + Sweden Building 05K0010 + 61.0 + Sweden Building 05K0011 + 967.0 + Sweden Building 05K0012 + 1185.0 + Sweden Building 05K0013 + 1704.0 + Sweden Building 05K0014 + 154.0 + Sweden Building 05K0015 + 145.0 +

415

Property:Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas | Open  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas Jump to: navigation, search This is a property of type String. Digester / landfill gas Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrDigesterLandfillGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

416

Property:Building/SPPurchasedEngyForPeriodMwhYrTownGas | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrTownGas SPPurchasedEngyForPeriodMwhYrTownGas Jump to: navigation, search This is a property of type String. Town gas Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrTownGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

417

Property:Building/SPPurchasedEngyForPeriodMwhYrWoodChips | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrWoodChips SPPurchasedEngyForPeriodMwhYrWoodChips Jump to: navigation, search This is a property of type String. Wood chips Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrWoodChips" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

418

Property:Building/SPPurchasedEngyForPeriodMwhYrLogs | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrLogs SPPurchasedEngyForPeriodMwhYrLogs Jump to: navigation, search This is a property of type String. Logs Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrLogs" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

419

Property:Building/SPPurchasedEngyForPeriodMwhYrDstrtColg | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrDstrtColg SPPurchasedEngyForPeriodMwhYrDstrtColg Jump to: navigation, search This is a property of type String. District cooling Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrDstrtColg" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 762.0 + Sweden Building 05K0002 + 322.0 + Sweden Building 05K0003 + 51.9 + Sweden Building 05K0004 + 908.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 345.0 + Sweden Building 05K0007 + 450.0 + Sweden Building 05K0008 + 123.0 + Sweden Building 05K0009 + 600.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 78.0 + Sweden Building 05K0012 + 340.0 + Sweden Building 05K0013 + 420.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

420

Property:Building/SPPurchasedEngyForPeriodMwhYrPellets | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrPellets SPPurchasedEngyForPeriodMwhYrPellets Jump to: navigation, search This is a property of type String. Pellets Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrPellets" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

Note: This page contains sample records for the topic "4-year payback period" 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

Property:Building/SPPurchasedEngyForPeriodMwhYrOil-FiredBoiler | Open  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrOil-FiredBoiler SPPurchasedEngyForPeriodMwhYrOil-FiredBoiler Jump to: navigation, search This is a property of type String. Oil-fired boiler Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrOil-FiredBoiler" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 +

422

Property:Building/SPPurchasedEngyForPeriodMwhYrOther | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrOther SPPurchasedEngyForPeriodMwhYrOther Jump to: navigation, search This is a property of type String. Other Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrOther" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

423

Property:Building/SPPurchasedEngyForPeriodMwhYrTotal | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrTotal SPPurchasedEngyForPeriodMwhYrTotal Jump to: navigation, search This is a property of type String. Total Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrTotal" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 4228.0 + Sweden Building 05K0002 + 1501.1 + Sweden Building 05K0003 + 847.1 + Sweden Building 05K0004 + 4360.9 + Sweden Building 05K0005 + 727.6 + Sweden Building 05K0006 + 2915.1 + Sweden Building 05K0007 + 3385.0 + Sweden Building 05K0008 + 1282.0 + Sweden Building 05K0009 + 4739.0 + Sweden Building 05K0010 + 127.52 + Sweden Building 05K0011 + 1436.0 + Sweden Building 05K0012 + 2334.65 + Sweden Building 05K0013 + 3323.0 + Sweden Building 05K0014 + 381.66 + Sweden Building 05K0015 + 257.0 +

424

Lithium Impacts on the Amplitude and Period of the Molecular Circadian Clockwork  

E-Print Network (OSTI)

Lithium salt has been widely used in treatment of Bipolar Disorder, a mental disturbance associated with circadian rhythm disruptions. Lithium mildly but consistently lengthens circadian period of behavioural rhythms in multiple organisms. To systematically address the impacts of lithium on circadian pacemaking and the underlying mechanisms, we measured locomotor activity in mice in vivo following chronic lithium treatment, and also tracked clock protein dynamics (PER2::Luciferase) in vitro in lithium-treated tissue slices/cells. Lithium lengthens period of both the locomotor activity rhythms, as well as the molecular oscillations in the suprachiasmatic nucleus, lung tissues and fibroblast cells. In addition, we also identified significantly elevated PER2::LUC expression and oscillation amplitude in both central and peripheral pacemakers. Elevation of PER2::LUC by lithium was not associated with changes in protein stabilities of PER2, but instead with increased transcription of Per2 gene. Although lithium and GSK3 inhibition showed opposing effects on clock period, they acted in a similar fashion to up-regulate PER2 expression and oscillation amplitude. Collectively, our data have identified a novel amplitude-enhancing effect of lithium on the PER2 protein rhythms in the central and peripheral circadian clockwork, which may involve a GSK3-mediated signalling pathway. These findings may advance our understanding of the

Jian Li; Wei-qun Lu; Stephen Beesley; Andrew S. I. Loudon; Qing-jun Meng

2012-01-01T23:59:59.000Z

425

Three Packets of Minerals of the Periodic Table of Chemical Elements and Chemical Compounds  

E-Print Network (OSTI)

The concepts of alpha- and beta-packets of the periodic table of chemical elements and chemical compounds are defined. The first of the 47 minerals alpha-packets is composed. In it all minerals are arranged in increasing Iav index of proportionality of atomic weights of composing chemical elements, the same way as chemical elements are located in increasing atomic weights in the Periodic table. The packet includes 93 known minerals and two compounds - N2O5 and CO2 - being actually minerals. Beta-packet of oxides and hydroxides minerals includes 88 known minerals and five chemical compounds - N2O5, CO2, CO, SO3 and SO2. Two minerals of the packet have not been determined yet. Besides, beta-packet of minerals with sulfur, selenium or arsenic is composed, with one mineral not defined yet. The results of the calculations can be used for further development of the Periodic Table of Chemical Elements and Chemical Compounds and their properties investigation.

Labushev, Mikhail M

2013-01-01T23:59:59.000Z

426

Three Packets of Minerals of the Periodic Table of Chemical Elements and Chemical Compounds  

E-Print Network (OSTI)

The concepts of alpha- and beta-packets of the periodic table of chemical elements and chemical compounds are defined. The first of the 47 minerals alpha-packets is composed. In it all minerals are arranged in increasing Iav index of proportionality of atomic weights of composing chemical elements, the same way as chemical elements are located in increasing atomic weights in the Periodic table. The packet includes 93 known minerals and two compounds - N2O5 and CO2 - being actually minerals. Beta-packet of oxides and hydroxides minerals includes 88 known minerals and five chemical compounds - N2O5, CO2, CO, SO3 and SO2. Two minerals of the packet have not been determined yet. Besides, beta-packet of minerals with sulfur, selenium or arsenic is composed, with one mineral not defined yet. The results of the calculations can be used for further development of the Periodic Table of Chemical Elements and Chemical Compounds and their properties investigation.

Mikhail M. Labushev

2013-03-20T23:59:59.000Z

427

Development of periodic response factors for use with the radiant time series method  

SciTech Connect

Harris and McQuiston (1988) developed conduction transfer function (CTF) coefficients corresponding to 41 representative wall assemblies and 42 representative roof assemblies for use with the transfer function method (TFM). They also developed a grouping procedure that allows design engineers to determine the correct representative wall or roof assembly that most closely matches a specific wall or roof assembly. The CTF coefficients and the grouping procedure have been summarized in the ASHRAE Handbook--Fundamentals (1989, 1993, 1997) and the ASHRAE Cooling and Heating Load Calculation Manual, second edition. More recently, a new, simplified design cooling load calculation procedure, the radiant time series method (RTSM), has been developed. The RTSM uses periodic response factors to model transient conductive heat transfer. While not a true manual load calculation procedure, it is quite feasible to implement the RTSM in a spreadsheet. To be useful in such an environment, it would be desirable to have a pre-calculated set of periodic response factors. Accordingly, a set of periodic response factors has been calculated and is presented in this paper.

Spitler, J.D.; Fisher, D.E.

1999-07-01T23:59:59.000Z

428

PERIOD CHANGES AND FOUR-COLOR LIGHT CURVES OF THE ACTIVE OVERCONTACT BINARY V396 MONOCEROTIS  

Science Conference Proceedings (OSTI)

This paper analyzes the first obtained four-color light curves of V396 Mon using the 2003 version of the W-D code. It is confirmed that V396 Mon is a shallow W-type contact binary system with a mass ratio q = 2.554({+-}0.004) and a degree of contact factor f = 18.9%({+-}1.2%). A period investigation based on all available data shows that the period of the system includes a long-term decrease (dP/dt = -8.57 x 10{sup -8} days yr{sup -1}) and an oscillation (A{sub 3} = 0.0160 day, T{sub 3} = 42.4 yr). They are caused by angular momentum loss and light-time effect, respectively. The suspect third body is possibly a small M-type star (about 0.31 solar mass). Though some observations indicate that this system has strong magnetic activity, by our analysis we found that the Applegate mechanism cannot explain the periodic changes. This binary is an especially important system according to Qian's statistics of contact binaries as its mass ratio lies near the proposed pivot point about which the physical structure of contact binaries supposedly oscillates.

Liu, L.; Qian, S.-B.; Liao, W.-P.; He, J.-J.; Zhu, L.-Y.; Li, L.-J.; Zhao, E.-G., E-mail: creator_ll.student@sina.com, E-mail: LiuL@ynao.ac.cn [National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming (China)

2011-02-15T23:59:59.000Z

429

ON THE ORBIT OF THE SHORT-PERIOD EXOPLANET WASP-19b  

Science Conference Proceedings (OSTI)

WASP-19b has the shortest orbital period of any known exoplanet, orbiting at only 1.2 times the Roche tidal radius. By observing the Rossiter-McLaughlin effect we show that WASP-19b's orbit is aligned, with {lambda} = 4.{sup 0}6 {+-} 5.{sup 0}2. Using, in addition, a spectroscopic vsin I and the observed rotation period we conclude that the obliquity, {psi}, is less than 20{sup 0}. Further, the eccentricity of the orbit is less than 0.02. We argue that hot Jupiters with orbital periods as short as that of WASP-19b are two orders of magnitude less common than hot Jupiters at the 3-4 day 'pileup'. We discuss the evolution of WASP-19b's orbit and argue that most likely it was first moved to near twice the Roche limit by third-body interactions, and has since spiralled inward to its current location under tidal decay. This is compatible with a stellar tidal-dissipation quality factor, Q'{sub *}, of order 10{sup 7}.

Hellier, Coel; Anderson, D. R.; Smalley, B.; Southworth, J. [Astrophysics Group, Keele University, Staffordshire, ST5 5BG (United Kingdom); Collier-Cameron, A.; Miller, G. R. M. [SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife, KY16 9SS (United Kingdom); Queloz, D.; Triaud, A. H. M. J. [Observatoire astronomique de l'Universite de Geneve 51 ch. des Maillettes, 1290 Sauverny (Switzerland)

2011-04-01T23:59:59.000Z

430

Surface topography measurements over the 1 meter to 10 micrometer spatial period bandwidth  

Science Conference Proceedings (OSTI)

A recently-developed long-trace surface profiling instrument (LTP) is now in operation in our laboratory measuring surface profiles on grazing incidence aspheres and also conventional optical surface. The LTP characterizes surface height profiles in a non-contact manner over spatial periods ranging from 1 meter (the maximum scan length) to 2 mm (the Nyquist period for 1 mm sampling period) and complements the range of our WYKO NCP-1000 2.5X surface roughness profiler (5 mm to 9.8 {mu}m). Using these two instruments, we can fully characterize both figure and finish of an optical surface in the same way that we normally characterize surface finish, e.g., by means of the power spectral density function in the spatial frequency domain. A great deal of information about the distribution of figure errors over various spatial frequency ranges is available from this data, which is useful for process control and predicting performance at the desired wavelength and incidence angle. In addition, the LTP is able to measure the absolute radius of curvature on long-radius optics with high precision and accuracy. Angular errors in the optical head are measured in real time by an electronic autocollimator as the head traverses the linear air bearing slide. Measurements of kilometer radius optics can be made very quickly and the data analyzed in a format that is very easy to understand. 17 refs., 10 figs.

Takacs, P.Z.; Furenlid, K.; DeBiasse, R.A.; Church, E.L. (Brookhaven National Lab., Upton, NY (USA); Army Research and Development Command, Dover, NJ (USA))

1989-09-01T23:59:59.000Z

431

QUASI-PERIODIC OSCILLATIONS AND BROADBAND VARIABILITY IN SHORT MAGNETAR BURSTS  

Science Conference Proceedings (OSTI)

The discovery of quasi-periodic oscillations (QPOs) in magnetar giant flares has opened up prospects for neutron star asteroseismology. However, with only three giant flares ever recorded, and only two with data of sufficient quality to search for QPOs, such analysis is seriously data limited. We set out a procedure for doing QPO searches in the far more numerous, short, less energetic magnetar bursts. The short, transient nature of these bursts requires the implementation of sophisticated statistical techniques to make reliable inferences. Using Bayesian statistics, we model the periodogram as a combination of red noise at low frequencies and white noise at high frequencies, which we show is a conservative approach to the problem. We use empirical models to make inferences about the potential signature of periodic and QPOs at these frequencies. We compare our method with previously used techniques and find that although it is on the whole more conservative, it is also more reliable in ruling out false positives. We illustrate our Bayesian method by applying it to a sample of 27 bursts from the magnetar SGR J0501+4516 observed by the Fermi Gamma-ray Burst Monitor, and we find no evidence for the presence of QPOs in any of the bursts in the unbinned spectra, but do find a candidate detection in the binned spectra of one burst. However, whether this signal is due to a genuine quasi-periodic process, or can be attributed to unmodeled effects in the noise is at this point a matter of interpretation.

Huppenkothen, Daniela; Watts, Anna L.; Uttley, Phil; Van der Horst, Alexander J.; Van der Klis, Michiel [Astronomical Institute ''Anton Pannekoek'', University of Amsterdam, Postbus 94249, 1090-GE Amsterdam (Netherlands); Kouveliotou, Chryssa [Office of Science and Technology, ZP12, NASA Marshall Space Flight Center, Huntsville, AL 35812 (United States); Goegues, Ersin [Sabanc Latin-Small-Letter-Dotless-I University, Orhanl Latin-Small-Letter-Dotless-I -Tuzla, Istanbul 34956 (Turkey); Granot, Jonathan [The Open University of Israel, 1 University Road, P.O. Box 808, Ra'anana 43537 (Israel); Vaughan, Simon [X-Ray and Observational Astronomy Group, University of Leicester, Leicester LE1 7RH (United Kingdom); Finger, Mark H., E-mail: D.Huppenkothen@uva.nl [Universities Space Research Association, Huntsville, AL 35805 (United States)

2013-05-01T23:59:59.000Z

432

PLANET HUNTERS: ASSESSING THE KEPLER INVENTORY OF SHORT-PERIOD PLANETS  

Science Conference Proceedings (OSTI)

We present the results from a search of data from the first 33.5 days of the Kepler science mission (Quarter 1) for exoplanet transits by the Planet Hunters citizen science project. Planet Hunters enlists members of the general public to visually identify transits in the publicly released Kepler light curves via the World Wide Web. Over 24,000 volunteers reviewed the Kepler Quarter 1 data set. We examine the abundance of {>=}2 R{sub Circled-Plus} planets on short-period (inventory of planet candidates. Although performance drops rapidly for smaller radii, {>=}4 R{sub Circled-Plus} Planet Hunters {>=}85% efficient at identifying transit signals for planets with periods less than 15 days for the Kepler sample of target stars. Our high efficiency rate for simulated transits along with recovery of the majority of Kepler {>=}4 R{sub Circled-Plus} planets suggests that the Kepler inventory of {>=}4 R{sub Circled-Plus} short-period planets is nearly complete.

Schwamb, Megan E. [Yale Center for Astronomy and Astrophysics, Yale University, P.O. Box 208121, New Haven, CT 06520 (United States); Lintott, Chris J.; Lynn, Stuart; Smith, Arfon M.; Simpson, Robert J. [Oxford Astrophysics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom); Fischer, Debra A.; Giguere, Matthew J.; Brewer, John M. [Department of Astronomy, Yale University, New Haven, CT 06511 (United States); Parrish, Michael [Adler Planetarium, 1300 S. Lake Shore Drive, Chicago, IL 60605 (United States); Schawinski, Kevin, E-mail: megan.schwamb@yale.edu [Department of Physics, Yale University, New Haven, CT 06511 (United States)

2012-08-01T23:59:59.000Z

433

Homogenization for Periodic Heterogeneous Materials with Arbitrary Position-Dependent Material Properties  

SciTech Connect

We present a rigorous homogenization approach for efficient computation of a class of physical problems in a one-dimensional periodic heterogeneous material. This material is represented by a spatially periodic array of unit cells with a length of e. More specifically, the method is applied to the diffusion, heat conduction, and wave propagation problems. Heterogeneous materials can have arbitrary position-dependent continuous or discontinuous materials properties (for example heat conductivity) within the unit cell. The final effective model includes both effective properties at the leading order and high-order contributions due to the microscopic heterogeneity. A dimensionless heterogeneity parameter ß is defined to represent high-order contributions, shown to be in the range of [-1/12, 0], and has a universal expression for all three problems. Both effective properties and heterogeneity parameter ß are independent of e, the microscopic scale of heterogeneity. The homogenized solution describing macroscopic variations can be obtained from the effective model. Solution with sub-unit-cell accuracy can be constructed based on the homogenized solution and its spatial derivatives. The paper represents a general approach to obtain the effective model for arbitrary periodic heterogeneous materials with position-dependent properties.

Xu Zhi-Jie

2012-08-01T23:59:59.000Z

434

Theoretical analyses predict A20 regulates period of NF-kB oscillation  

E-Print Network (OSTI)

The nuclear-cytoplasmic shuttling of NF-kB is characterized by damped oscillations of the nuclear concentration with a time period of around 1-2 hours. The NF-kB network contains several feedback loops modulating the overall response of NF-kB activity. While IkBa is known to drive and IkBe is known to dampen the oscillations, the precise role of A20 negative feedback remains to be elucidated. Here we propose a model of the NF-kB system focusing on three negative feedback loops (IkBa, IkBe and A20) which capture the experimentally observed responses in wild-type and knockout cells. We find that A20, like IkBe, efficiently dampens the oscillations albeit through a distinct mechanism. In addition, however, we have discovered a new functional role of A20 by which it controls the oscillation period of nuclear NF-kB. The design based on three nested feedback loops allows independent control of period and amplitude decay in the oscillatory response. Based on these results we predict that adjusting the expression lev...

Mengel, Benedicte; Jensen, Mogens H; Trusina, Ala

2009-01-01T23:59:59.000Z

435

Property:Building/SPPurchasedEngyForPeriodMwhYrNaturalGas | Open Energy  

Open Energy Info (EERE)

SPPurchasedEngyForPeriodMwhYrNaturalGas SPPurchasedEngyForPeriodMwhYrNaturalGas Jump to: navigation, search This is a property of type String. Natural gas Pages using the property "Building/SPPurchasedEngyForPeriodMwhYrNaturalGas" Showing 25 pages using this property. (previous 25) (next 25) S Sweden Building 05K0001 + 0.0 + Sweden Building 05K0002 + 0.0 + Sweden Building 05K0003 + 0.0 + Sweden Building 05K0004 + 0.0 + Sweden Building 05K0005 + 0.0 + Sweden Building 05K0006 + 0.0 + Sweden Building 05K0007 + 0.0 + Sweden Building 05K0008 + 0.0 + Sweden Building 05K0009 + 0.0 + Sweden Building 05K0010 + 0.0 + Sweden Building 05K0011 + 0.0 + Sweden Building 05K0012 + 0.0 + Sweden Building 05K0013 + 0.0 + Sweden Building 05K0014 + 0.0 + Sweden Building 05K0015 + 0.0 + Sweden Building 05K0016 + 0.0 +

436

Modeling twin-screw multiphase pump performance during periods of high gas volume fraction  

E-Print Network (OSTI)

Multiphase pumping is a new technology used for reducing capital investments, increasing production rates, and improving recoveries in many on-shore projects. Interest is also growing in the subsea/offshore application of this technology. Multiphase pumping adds energy to an unprocessed effluent stream acting as a combined pump and compressor, permitting the recovery of oil and gas on an economical basis. In practice, multiphase production is characterized by wide fluctuations in the gas and liquid mass flow rates. During periods of substantial gas flow, temperature becomes the critical variable determining the performance of the pump. Without the liquid phase to remove the gas compression heat, temperatures in the discharge gas stream begin to rise causing a decrease in efficiency, a high temperature shut-in of the pump, and damage to the pump. While this behavior has been observed in lab experiments and in the field, a review of literature reveals that no mechanistic model exists for predicting the performance of a twin-screw pump under high gas volume flow conditions. Also, very few data are available under high GVF conditions. Both large-scale experiments and mechanistic modeling were performed as part of this research. This thesis models the behavior of a twin-screw multiphase pump under high gas volume fraction conditions. The model of the pump is based on fundamental principles of thermodynamic and fluid mechanics. The specific experimental tasks undertaken in this work include studying the volumetric pump performance during periods of high gas volume fractions, the observation of temperature increase with time under periods of 100% gas volume fraction and studying the effect of viscosity on high GVF performance. The results indicate that the pump can be operated during periods of 100% gas volume fractions. The volumetric efficiency of the twin-screw multiphase pump during periods of high to 100% gas volume fractions can be improved by increasing the viscosity of the process stream or by injecting high viscosity fluids into the pump casing. At 94-95% gas volume fraction the system transitions from isothermal conditions. And the system moves from isothermal to adiabatic (uncooled) conditions with time. A model has been generated that predicts temperature increase with time as a function of the key parameters of pump speed, differential pressure, mass flow rate, specific heat and slip flow. This model can be used to develop novel control philosophies for operating multiphase pumps during high gas volume fractions.

Singh, Aditya

2003-01-01T23:59:59.000Z

437

DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD DECEMBER 1,2000 THROUGH FEBRUARY 28,2001  

DOE Green Energy (OSTI)

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD DECEMBER 1,2000 THROUGH FEBRUARY 28,2001

L.C. BROWN

2000-02-28T23:59:59.000Z

438

DIRECT ENERGY CONVERSION FISSION REACTOR ANNUAL REPORT FOR THE PERIOD OCTOBER 1, 2001 THROUGH DECEMBER 31, 2002  

DOE Green Energy (OSTI)

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR ANNUAL REPORT FOR THE PERIOD OCTOBER 1, 2001 THROUGH DECEMBER 31, 2002

L.C. BROWN

2003-04-07T23:59:59.000Z

439

DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD DECEMBER 1,1999 THRIUGH FEBRUARY 29,2000  

DOE Green Energy (OSTI)

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD DECEMBER 1,1999 THRIUGH FEBRUARY 29,2000

LC BROWN

2000-02-29T23:59:59.000Z

440

PHOTOMETRIC VARIABILITY IN KEPLER TARGET STARS. II. AN OVERVIEW OF AMPLITUDE, PERIODICITY, AND ROTATION IN FIRST QUARTER DATA  

Science Conference Proceedings (OSTI)

We provide an overview of stellar variability in the first quarter data from the Kepler mission. The intent of this paper is to examine the entire sample of over 150,000 target stars for periodic behavior in their light curves and relate this to stellar characteristics. This data set constitutes an unprecedented study of stellar variability given its great precision and complete time coverage (with a half hour cadence). Because the full Kepler pipeline is not currently suitable for a study of stellar variability of this sort, we describe our procedures for treating the 'raw' pipeline data. About half of the total sample exhibits convincing periodic variability up to two weeks, with amplitudes ranging from differential intensity changes of less than 10{sup -4} up to more than 10%. K and M dwarfs have a greater fraction of period behavior than G dwarfs. The giants in the sample have distinctive quasi-periodic behavior, but are not periodic in the way we define it. Not all periodicities are due to rotation, and the most significant period is not necessarily the rotation period. We discuss properties of the light curves, and in particular look at a sample of very clearly periodic G dwarfs. It is clear that a large number of them do vary because of rotation and starspots, but it will take further analysis to fully exploit this.

Basri, Gibor; Walkowicz, Lucianne M.; Marcy, Geoffrey W. [Astronomy Department, University of California, Berkeley, CA 94720 (United States); Batalha, Natalie; Jenkins, Jon; Borucki, William J.; Koch, David; Caldwell, Doug [NASA Ames Research Center, Moffett Field, CA 94035 (United States); Gilliland, Ronald L. [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Dupree, Andrea K.; Latham, David W.; Meibom, Soeren [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Brown, Tim [Las Cumbres Observatory Global Telescope, Goleta, CA 93117 (United States)

2011-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "4-year payback period" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

The effect of periodic unsteady wakes on boundary layer transition and heat transfer on a curved plate.  

E-Print Network (OSTI)

??The effect of unsteady periodic wakes on heat transfer and boundary layer transition was investigated on a constant curvature heat transfer curved plate in a… (more)

Wright, Lance Cole

2012-01-01T23:59:59.000Z

442

DIRECT ENERGY CONVERSION FISSION REACTOR ANNUAL REPORT FOR THE PERIOD AUGUST 15,2000 THROUGH SEPTEMBER 30,2001  

DOE Green Energy (OSTI)

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR ANNUAL REPORT FOR THE PERIOD AUGUST 15,2000 THROUGH SEPTEMBER 30,2001

L.C. BROWN

2002-02-01T23:59:59.000Z

443

DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD OCTOBER 1,2001 THROUGH DECEMBER 31,2001  

DOE Green Energy (OSTI)

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD OCTOBER 1,2001 THROUGH DECEMBER 31,2001

L.C. BROWN

2001-12-31T23:59:59.000Z

444

KPD 0422+5421: A New Short Period Subdwarf B/White Dwarf Binary  

E-Print Network (OSTI)

The sdB star KPD 0422+5421 was discovered to be a single-lined spectroscopic binary with a period of P=0.0901795 +/- (3\\times 10^{-7}) days (2 hours, 10 minutes). The U and B light curves display an ellipsoidal modulation with amplitudes of about 0.02 magnitudes. The sdB star contributes nearly all of the observed flux. This and the absence of any reflection effect suggest that the unseen companion star is small (i.e. R_comp ~ 0.01 solar radii) and therefore degenerate. We modeled the U and B light curves and derived i = 78.05 +/- 0.50 degrees and a mass ratio of q = M_comp/M_sdB = 0.87 +/- 0.15. The sdB star fills 69% of its Roche lobe. These quantities may be combined with the mass function of the companion (f(M) = 0.126 +/- 0.028 solar masses) to derive M_sdB = 0.72 +/- 0.26 solar masses and M_comp = 0.62 +/- 0.18 solar masses. We used model spectra to derive the effective temperature, surface gravity, and helium abundance of the sdB star. We found T_eff = 25,000 +/- 1500K, log g = 5.4 +/- 0.1, and [He/H] = -1.0. With a period of 2 hours and 10 minutes, KPD 0422+5421 has one of the shortest known orbital periods of a detached binary. This system is also one of only a few known binaries which contain a subdwarf B star and a white dwarf. Thus KPD 0422+5421 represents a relatively unobserved, and short-lived, stage of binary star evolution.

C. Koen; Jerome A. Orosz; Richard A. Wade

1998-07-10T23:59:59.000Z

445

Nonlinear, stationary electrostatic ion cyclotron waves: Exact solutions for solitons, periodic waves, and wedge shaped waveforms  

Science Conference Proceedings (OSTI)

The theory of fully nonlinear stationary electrostatic ion cyclotron waves is further developed. The existence of two fundamental constants of motion; namely, momentum flux density parallel to the background magnetic field and energy density, facilitates the reduction of the wave structure equation to a first order differential equation. For subsonic waves propagating sufficiently obliquely to the magnetic field, soliton solutions can be constructed. Importantly, analytic expressions for the amplitude of the soliton show that it increases with decreasing wave Mach number and with increasing obliquity to the magnetic field. In the subsonic, quasi-parallel case, periodic waves exist whose compressive and rarefactive amplitudes are asymmetric about the 'initial' point. A critical 'driver' field exists that gives rise to a soliton-like structure which corresponds to infinite wavelength. If the wave speed is supersonic, periodic waves may also be constructed. The aforementioned asymmetry in the waveform arises from the flow being driven towards the local sonic point in the compressive phase and away from it in the rarefactive phase. As the initial driver field approaches the critical value, the end point of the compressive phase becomes sonic and the waveform develops a wedge shape. This feature and the amplitudes of the compressive and rarefactive portions of the periodic waves are illustrated through new analytic expressions that follow from the equilibrium points of a wave structure equation which includes a driver field. These expressions are illustrated with figures that illuminate the nature of the solitons. The presently described wedge-shaped waveforms also occur in water waves, for similar 'transonic' reasons, when a Coriolis force is included.

McKenzie, J. F. [Department of Mathematics, Statistics and Physics, Durban University of Technology, Steve Biko Campus, Durban 4001 (South Africa); School of Mathematical Sciences, University of KwaZulu-Natal, Private Bag: X54001, Durban 4001 (South Africa); Doyle, T. B. [Materials Research Division, iThemba LABS, P.O.Box 722, Somerset West, 7129, South Africa and School of Chemistry and Physics, University of KwaZulu-Natal, Private Bag: X54001, Durban 4001 (South Africa); Rajah, S. S. [Department of Mathematics, Statistics and Physics, Durban University of Technology, Steve Biko Campus, Durban 4001 (South Africa)

2012-11-15T23:59:59.000Z

446

Property:OpenEI/UtilityRate/DemandRateStructure/Period | Open Energy  

Open Energy Info (EERE)

Period Period Jump to: navigation, search This is a property of type Number. The allowed values for this property are: 1 2 3 4 5 6 7 8 9 Pages using the property "OpenEI/UtilityRate/DemandRateStructure/Period" Showing 25 pages using this property. (previous 25) (next 25) 0 000e60f7-120d-48ab-a1f9-9c195329c628 + 1 + 000e60f7-120d-48ab-a1f9-9c195329c628 + 1 + 001361ca-50d2-49bc-b331-08755a2c7c7d + 1 + 001361ca-50d2-49bc-b331-08755a2c7c7d + 1 + 0016f771-cda9-4312-afc2-63f10c8d8bf5 + 1 + 0016f771-cda9-4312-afc2-63f10c8d8bf5 + 1 + 00178d3d-17cb-46ed-8a58-24c816ddce96 + 1 + 00178d3d-17cb-46ed-8a58-24c816ddce96 + 1 + 001d1952-955c-411b-8ce4-3d146852a75e + 1 + 001d1952-955c-411b-8ce4-3d146852a75e + 1 + 0022e9a5-942c-4e97-94d7-600f5d315ce8 + 1 + 0022e9a5-942c-4e97-94d7-600f5d315ce8 + 1 +

447

Analytical Chemistry Division annual progress report for period ending December 31, 1992  

Science Conference Proceedings (OSTI)

This report is divided into: Analytical spectroscopy (optical spectroscopy, organic mass spectrometry, inorganic mass spectrometry, secondary ion mass spectrometry), inorganic and radiochemistry (transuranium and activation analysis, low-level radiochemical analysis, inorganic analysis, radioactive materials analysis, special projects), organic chemistry (organic spectroscopy, separations and synthesis, special projects, organic analysis, ORNL/UT research program), operations (quality assurance/quality control, environmental protection, safety, analytical improvement, training, radiation control), education programs, supplementary activities, and presentation of research results. Tables are included for articles reviewed or refereed for periodicals, analytical service work, division manpower and financial summary, and organization chart; a glossary is also included.

Shults, W.D.

1993-04-01T23:59:59.000Z

448

Formation of periodic structures upon laser ablation of metal targets in liquids  

SciTech Connect

Experimental data on the formation of ordered microstructures produced upon ablation of metal targets in liquids irradiated by a copper vapour laser or a pulsed Nd:YAG laser are presented. The structures were obtained on brass, bronze, copper, and tungsten substrates immersed in distilled water or ethanol. As a result of multiple-pulse laser ablation by a scanning beam, ordered microcones with pointed vertexes are formed on the target surface. The structures are separated by deep narrow channels. The structure period was experimentally shown to increase linearly with diameter of the laser spot on the target surface. (interaction of laser radiation with matter)

Kazakevich, Pavel V; Simakin, Aleksandr V; Shafeev, Georgii A [A.M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2005-09-30T23:59:59.000Z

449

Photon Statistics of a Non-Stationary Periodically Driven Single-Photon Source  

E-Print Network (OSTI)

We investigate the photon statistics of a single-photon source that operates under non-stationary conditions. The photons are emitted by shining a periodic sequence of laser pulses on single atoms falling randomly through a high-finesse optical cavity. Strong antibunching is found in the intensity correlation of the emitted light, demonstrating that a single atom emits photons one-by-one. However, the number of atoms interacting with the cavity follows a Poissonian statistics so that, on average, no sub-Poissonian photon statistics is obtained, unless the measurement is conditioned on the presence of single atoms.

M. Hennrich; T. Legero; A. Kuhn; G. Rempe

2004-06-05T23:59:59.000Z

450

Transmission of a quantum state in a periodically poled nonlinear crystal  

E-Print Network (OSTI)

Theoretical calculations on transmission of quantum states such as Schr\\"{o}dinger cat (SC) states are considered in a periodically poled nonlinear crystal (PPNC). Combinations of various initial states (SC, coherent (C),and vacuum (V)) of light waves at frequencies $\\omega_{e}$ and $3\\omega_{e}$ at the input of a PPNC are studied. It is shown that the transmission and interference between superposition of macroscopically distinguishable states can be achieved by using a PPNC. Visualization and analyzes of transmission and interference processes are demonstrated with the help of reduced Wigner quasi-probability distribution functions of considered light waves.

Ranjit Singh

2010-05-03T23:59:59.000Z

451

Discovery of Peculiar Double-Mode Pulsations and Period Doubling in KEPLER RRc Variables  

E-Print Network (OSTI)

We analyzed the Long Cadence photometry of 4 first overtone RR Lyr-type stars (RRc stars) observed by the KEPLER telescope. All studied variables are multiperiodic. The strongest secondary peak appears for f_2/f_1 = 1.58-1.63, or P_2/P_1 = 0.61-0.63. In each star we detect at least one subharmonic of f_2, either at ~1/2 f_2 or at ~3/2 f_2. The presence of subharmonics is a characteristic signature of a period doubling.

Moskalik, P; Kolenberg, K; Nemec, J; Kunder, A; Chadid, M; Kopacki, G; Szabó, R; members, KEPLER WG#13

2012-01-01T23:59:59.000Z

452

Spin-projection orientations in the plane square-lattice Ising model with periodic boundary conditions  

E-Print Network (OSTI)

The periodic boundary conditions changed the plane square-lattice Ising model to the torus-lattice system which restricts the spin-projection orientations. Only two of the three important spin-projection orientations, parallel to the x-axis or to the y-axis, are suited to the torus-lattice system. The infinitesimal difference of the free-energies of the systems between the two systems mentioned above makes their critical temperatures infinitely close to each other, but their topological fundamental groups are distinct.

You-gang Feng

2005-06-24T23:59:59.000Z

453

On subnormal solutions of periodic non-homogeneous linear differential equations, special functions and special polynomials  

E-Print Network (OSTI)

This paper offers a new and complete description of subnormal solutions of certain non-homogeneous second order periodic linear differential equations first studied by Gundersen and Steinbart in 1994. We have established a previously unknown relation that the general solutions (\\textit{i.e.}, whether subnormal or not) of the DEs can be solved explicitly in terms of classical special functions, namely the Bessel, Lommel and Struve functions, which are important because of their numerous physical applications. In particular, we show that the subnormal solutions are written explicitly in terms of the degenerate Lommel functions $S_{\\mu, \

Chiang, Y M

2009-01-01T23:59:59.000Z

454

Compact cryogenic source of periodic hydrogen and argon droplet beams for relativistic laser-plasma generation  

Science Conference Proceedings (OSTI)

We present a cryogenic source of periodic streams of micrometer-sized hydrogen and argon droplets as ideal mass-limited target systems for fundamental intense laser-driven plasma applications. The highly compact design combined with a high temporal and spatial droplet stability makes our injector ideally suited for experiments using state-of-the-art high-power lasers in which a precise synchronization between the laser pulses and the droplets is mandatory. We show this by irradiating argon droplets with multi-terawatt pulses.

Fraga, R. A. Costa; Kalinin, A.; Kuehnel, M.; Schottelius, A. [Institut fuer Kernphysik, J. W. Goethe-Universitaet, Max-von-Laue-Str. 1, 60438 Frankfurt am Main (Germany); Hochhaus, D. C.; Neumayer, P. [EMMI Extreme Matter Institute and Research Division, GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany); FIAS Frankfurt Institute for Advanced Studies, J. W. Goethe-Universitaet, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main (Germany); Polz, J. [Institut fuer Optik und Quantenelektronik, Max-Wien-Platz 1, 07743 Jena (Germany); Kaluza, M. C. [Institut fuer Optik und Quantenelektronik, Max-Wien-Platz 1, 07743 Jena (Germany); Helmholtz-Institut Jena, Froebelstieg 3, 07743 Jena (Germany); Grisenti, R. E. [Institut fuer Kernphysik, J. W. Goethe-Universitaet, Max-von-Laue-Str. 1, 60438 Frankfurt am Main (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany)

2012-02-15T23:59:59.000Z

455

THz laser based on quasi-periodic AlGaAs superlattices  

SciTech Connect

The use of quasi-periodic AlGaAs superlattices as an active element of a quantum cascade laser of terahertz range is proposed and theoretically investigated. A multi-colour emission, having from three to six peaks of optical gain, is found in Fibonacci, Thue-Morse, and figurate superlattices in electric fields of intensity F = 11 - 13 kV cm{sup -1} in the frequency range f = 2 - 4 THz. The peaks depend linearly on the electric field, retain the height of 20 cm{sup -1}, and strongly depend on the thickness of the AlGaAs-layers. (lasers)

Malyshev, K V [N.E. Bauman Moscow State Technical University, Moscow (Russian Federation)

2013-06-30T23:59:59.000Z

456

Tailoring the filamentation of intense femtosecond laser pulses with periodic lattices  

Science Conference Proceedings (OSTI)

We show numerically that by using periodic lattices the filamentation of intense femtosecond laser pulses, otherwise a result of competing nonlinear effects, can be well controlled with respect to its properties. The diffraction induced by the lattice provides a regularizing mechanism to the nonlinear self-action effects involved in filamentation. We demonstrate a new propagation regime of intense lattice solitons bridging the field of spatial solitons with that of femtosecond laser filamentation. The effective filamentation control is expected to have an important impact on numerous applications.

Panagiotopoulos, P.; Tzortzakis, S. [Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, P.O. Box 1527, GR-71110 Heraklion (Greece); Efremidis, N. K. [Department of Applied Mathematics, University of Crete, P.O. Box 2208, GR-71003 Heraklion (Greece); Papazoglou, D. G. [Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas, P.O. Box 1527, GR-71110 Heraklion (Greece); Department of Materials Science and Technology, University of Crete, P.O. Box 2208, GR-71003 Heraklion (Greece); Couairon, A. [Centre de Physique Theorique, Centre National de la Recherche Scientifique, Ecole Polytechnique, F-91128 Palaiseau (France)

2010-12-15T23:59:59.000Z

457

TFE Verification Program: Semiannual report for the period ending April 30, 1989  

DOE Green Energy (OSTI)

The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 years. 55 figs., 30 tabs.

Not Available

1989-09-01T23:59:59.000Z

458

PROGRESS REPORT NO. 50 FOR THE PERIOD JUNE 1, 1957 THROUGH AUGUST 31, 1957  

SciTech Connect

Progress is reported in fission elements chemistry, organic and inorganic nuclear chemistry, cosmic ray research, high-energy accelerator experimentation and physics, bubble chamber experimentation, and theoretical physics. Considerable attention was given to the ionization of mineral acids and hydrogen haloraetallates in inorganic solvents and to anion exchnnge behavior in metal complexes. Studies of various chemical reaction mechanisms were continued. The self-energy of a Dirac particle coupled through its charge with the electromagnetic field was investigated without perturbation theory. (For preceding period see AECU-3580.) (D.E.B.)

1957-08-31T23:59:59.000Z

459

Process Design and Optimization of Biorefining Pathways  

E-Print Network (OSTI)

Synthesis and screening of technology alternatives is a key process-development activity in the process industries. Recently, this has become particularly important for the conceptual design of biorefineries. A structural representation (referred to as the chemical species/conversion operator) is introduced. It is used to track individual chemicals while allowing for the processing of multiple chemicals in processing technologies. The representation is used to embed potential configurations of interest. An optimization approach is developed to screen and determine optimum network configurations for various technology pathways using simple data. The design of separation systems is an essential component in the design of biorefineries and hydrocarbon processing facilities. This work introduces methodical techniques for the synthesis and selection of separation networks. A shortcut method is developed for the separation of intermediates and products in biorefineries. The optimal allocation of conversion technologies and recycle design is determined in conjunction with the selection of the separation systems. The work also investigates the selection of separation systems for gas-to-liquid (GTL) technologies using supercritical Fischer-Tropsch synthesis. The task of the separation network is to exploit the pressure profile of the process, the availability of the solvent as a process product, and the techno-economic advantages of recovering and recycling the solvent. Case studies are solved to illustrate the effectiveness of the various techniques developed in this work. The result shows 1, the optimal pathway based on minimum payback period for cost efficiency is pathway through alcohol fermentation and oligomerized to gasoline as 11.7 years with 1620 tonne/day of feedstock. When the capacity is increased to 120,000 BPD of gasoline production, the payback period will be reduced to 3.4 years. 2, from the proposed separation configuration, the solvent is recovered 99% from the FT products, while not affecting the heavier components recovery and light gas recovery, and 99% of waster is recycled. The SCF-FT case is competitive with the traditional FT case with similar ROI 0.2. 3, The proposed process has comparable major parts cost with typical GTL process and the capital investment per BPD is within the range of existing GTL plant.

Bao, Buping

2012-05-01T23:59:59.000Z

460

Property:OpenEI/UtilityRate/EnergyRateStructure/Period | Open Energy  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:OpenEI/UtilityRate/EnergyRateStructure/Period Jump to: navigation, search This is a property of type Number. The allowed values for this property are: 1 2 3 4 5 6 7 8 9 Pages using the property "OpenEI/UtilityRate/EnergyRateStructure/Period" Showing 25 pages using this property. (previous 25) (next 25) 0 000b6dfa-a541-428a-9029-423006e22a34 + 1 +, 2 + 000b6dfa-a541-428a-9029-423006e22a34 + 1 + 000b6dfa-a541-428a-9029-423006e22a34 + 2 + 000e60f7-120d-48ab-a1f9-9c195329c628 + 1 + 000e60f7-120d-48ab-a1f9-9c195329c628 + 1 + 001361ca-50d2-49bc-b331-08755a2c7c7d + 1 + 001361ca-50d2-49bc-b331-08755a2c7c7d + 1 + 0016f771-cda9-4312-afc2-63f10c8d8bf5 + 1 + 0016f771-cda9-4312-afc2-63f10c8d8bf5 + 1 +

Note: This page contains sample records for the topic "4-year payback period" 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

Analytical Chemistry Division annual progress report for period ending December 31, 1989  

Science Conference Proceedings (OSTI)

The Analytical Chemistry Division of Oak Ridge National Laboratory (ORNL) is a large and diversified organization. As such, it serves a multitude of functions for a clientele that exists both in and outside of ORNL. These functions fall into the following general categories: Analytical Research, Development and Implementation; Programmatic Research, Development, and Utilization; and Technical Support. The Analytical Chemistry Division is organized into four major sections, each which may carry out any of the three types of work mentioned above. Chapters 1 through 4 of this report highlight progress within the four sections during the period January 1 to December 31, 1989. A brief discussion of the division's role in an especially important environmental program is given in Chapter 5. Information about quality assurance, safety, and training programs is presented in Chapter 6, along with a tabulation of analyses rendered. Publications, oral presentations, professional activities, educational programs, and seminars are cited in Chapters 7 and 8. Approximately 69 articles, 41 proceedings, and 31 reports were published, and 151 oral presentations were given during this reporting period. Some 308,981 determinations were performed.

Not Available

1990-04-01T23:59:59.000Z

462

Striped periodic minimizers of a two-dimensional model for martensitic phase transitions  

E-Print Network (OSTI)

In this paper we consider a simplified two-dimensional scalar model for the formation of mesoscopic domain patterns in martensitic shape-memory alloys at the interface between a region occupied by the parent (austenite) phase and a region occupied by the product (martensite) phase, which can occur in two variants (twins). The model, first proposed by Kohn and Mueller, is defined by the following functional: $${\\cal E}(u)=\\beta||u(0,\\cdot)||^2_{H^{1/2}([0,h])}+ \\int_{0}^{L} dx \\int_0^h dy \\big(|u_x|^2 + \\epsilon |u_{yy}| \\big)$$ where $u:[0,L]\\times[0,h]\\to R$ is periodic in $y$ and $u_y=\\pm 1$ almost everywhere. Conti proved that if $\\beta\\gtrsim\\epsilon L/h^2$ then the minimal specific energy scales like $\\sim \\min\\{(\\epsilon\\beta/L)^{1/2}, (\\epsilon/L)^{2/3}\\}$, as $(\\epsilon/L)\\to 0$. In the regime $(\\epsilon\\beta/L)^{1/2}\\ll (\\epsilon/L)^{2/3}$, we improve Conti's results, by computing exactly the minimal energy and by proving that minimizers are periodic one-dimensional sawtooth functions.

Alessandro Giuliani; Stefan Mueller

2010-11-17T23:59:59.000Z

463

All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data  

E-Print Network (OSTI)

We report on an all-sky search for periodic gravitational waves in the frequency band 50-800 Hz and with the frequency time derivative in the range of 0 through -6e-9 Hz/s. Such a signal could be produced by a nearby spinning and slightly non-axisymmetric isolated neutron star in our galaxy. After recent improvements in the search program that yielded a 10x increase in computational efficiency, we have searched in two years of data collected during LIGO's fifth science run and have obtained the most sensitive all-sky upper limits on gravitational wave strain to date. Near 150 Hz our upper limit on worst-case linearly polarized strain amplitude $h_0$ is 1e-24, while at the high end of our frequency range we achieve a worst-case upper limit of 3.8e-24 for all polarizations and sky locations. These results constitute a factor of two improvement upon previously published data. A new detection pipeline utilizing a Loosely Coherent algorithm was able to follow up weaker outliers, increasing the volume of space where signals can be detected by a factor of 10, but has not revealed any gravitational wave signals. The pipeline has been tested for robustness with respect to deviations from the model of an isolated neutron star, such as caused by a low-mass or long-period binary companion.

J. Abadie; B. P. Abbott; R. Abbott; T. D. Abbott; M. Abernathy; T. Accadia; F. Acernese; C. Adams; R. Adhikari; C. Affeldt; P. Ajith; B. Allen; G. S. Allen; E. Amador Ceron; D. Amariutei; R. S. Amin; S. B. Anderson; W. G. Anderson; K. Arai; M. A. Arain; M. C. Araya; S. M. Aston; P. Astone; D. Atkinson; P. Aufmuth; C. Aulbert; B. E. Aylott; S. Babak; P. Baker; G. Ballardin; S. Ballmer; D. Barker; F. Barone; B. Barr; P. Barriga; L. Barsotti; M. Barsuglia; M. A. Barton; I. Bartos; R. Bassiri; M. Bastarrika; A. Basti; J. Batch; J. Bauchrowitz; Th. S. Bauer; M. Bebronne; B. Behnke; M. G. Beker; A. S. Bell; A. Belletoile; I. Belopolski; M. Benacquista; J. M. Berliner; A. Bertolini; J. Betzwieser; N. Beveridge; P. T. Beyersdorf; I. A. Bilenko; G. Billingsley; J. Birch; R. Biswas; M. Bitossi; M. A. Bizouard; E. Black; J. K. Blackburn; L. Blackburn; D. Blair; B. Bland; M. Blom; O. Bock; T. P. Bodiya; C. Bogan; R. Bondarescu; F. Bondu; L. Bonelli; R. Bonnand; R. Bork; M. Born; V. Boschi; S. Bose; L. Bosi; B. Bouhou; S. Braccini; C. Bradaschia; P. R. Brady; V. B. Braginsky; M. Branchesi; J. E. Brau; J. Breyer; T. Briant; D. O. Bridges; A. Brillet; M. Brinkmann; V. Brisson; M. Britzger; A. F. Brooks; D. A. Brown; A. Brummit; T. Bulik; H. J. Bulten; A. Buonanno; J. Burguet--Castell; O. Burmeister; D. Buskulic; C. Buy; R. L. Byer; L. Cadonati; G. Cagnoli; J. Cain; E. Calloni; J. B. Camp; P. Campsie; J. Cannizzo; K. Cannon; B. Canuel; J. Cao; C. D. Capano; F. Carbognani; S. Caride; S. Caudill; M. Cavaglià; F. Cavalier; R. Cavalieri; G. Cella; C. Cepeda; E. Cesarini; O. Chaibi; T. Chalermsongsak; E. Chalkley; P. Charlton; E. Chassande-Mottin; S. Chelkowski; Y. Chen; A. Chincarini; A. Chiummo; H. Cho; N. Christensen; S. S. Y. Chua; C. T. Y. Chung; S. Chung; G. Ciani; F. Clara; D. E. Clark; J. Clark; J. H. Clayton; F. Cleva; E. Coccia; P. -F. Cohadon; C. N. Colacino; J. Colas; A. Colla; M. Colombini; A. Conte; R. Conte; D. Cook; T. R. Corbitt; M. Cordier; N. Cornish; A. Corsi; C. A. Costa; M. Coughlin; J. -P. Coulon; P. Couvares; D. M. Coward; D. C. Coyne; J. D. E. Creighton; T. D. Creighton; A. M. Cruise; A. Cumming; L. Cunningham; E. Cuoco; R. M. Cutler; K. Dahl; S. L. Danilishin; R. Dannenberg; S. D'Antonio; K. Danzmann; V. Dattilo; B. Daudert; H. Daveloza; M. Davier; G. Davies; E. J. Daw; R. Day; T. Dayanga; R. De Rosa; D. DeBra; G. Debreczeni; J. Degallaix; W. Del Pozzo; M. del Prete; T. Dent; V. Dergachev; R. DeRosa; R. DeSalvo; S. Dhurandhar; L. Di Fiore; A. Di Lieto; I. Di Palma; M. Di Paolo Emilio; A. Di Virgilio; M. Díaz; A. Dietz; F. Donovan; K. L. Dooley; S. Dorsher; M. Drago; R. W. P. Drever; J. C. Driggers; Z. Du; J. -C. Dumas; S. Dwyer; T. Eberle; M. Edgar; M. Edwards; A. Effler; P. Ehrens; G. Endr?czi; R. Engel; T. Etzel; K. Evans; M. Evans; T. Evans; M. Factourovich; V. Fafone; S. Fairhurst; Y. Fan; B. F. Farr; W. Farr; D. Fazi; H. Fehrmann; D. Feldbaum; I. Ferrante; F. Fidecaro; L. S. Finn; I. Fiori; R. P. Fisher; R. Flaminio; M. Flanigan; S. Foley; E. Forsi; L. A. Forte; N. Fotopoulos; J. -D. Fournier; J. Franc; S. Frasca; F. Frasconi; M. Frede; M. Frei; Z. Frei; A. Freise; R. Frey; T. T. Fricke; D. Friedrich; P. Fritschel; V. V. Frolov; P. J. Fulda; M. Fyffe; M. Galimberti; L. Gammaitoni; M. R. Ganija; J. Garcia; J. A. Garofoli; F. Garufi; M. E. Gáspár; G. Gemme; R. Geng; E. Genin; A. Gennai; L. Á. Gergely; S. Ghosh; J. A. Giaime; S. Giampanis; K. D. Giardina; A. Giazotto; C. Gill; E. Goetz; L. M. Goggin; G. González; M. L. Gorodetsky; S. Goßler; R. Gouaty; C. Graef; M. Granata; A. Grant; S. Gras; C. Gray; N. Gray; R. J. S. Greenhalgh; A. M. Gretarsson; C. Greverie; R. Grosso; H. Grote; S. Grunewald; G. M. Guidi; C. Guido; R. Gupta; E. K. Gustafson; R. Gustafson; T. Ha; B. Hage; J. M. Hallam; D. Hammer; G. Hammond; J. Hanks; C. Hanna; J. Hanson; J. Harms; G. M. Harry; I. W. Harry; E. D. Harstad; M. T. Hartman; K. Haughian; K. Hayama; J. -F. Hayau; T. Hayler; J. Heefner; A. Heidmann; M. C. Heintze; H. Heitmann; P. Hello; M. A. Hendry; I. S. Heng; A. W. Heptonstall; V. Herrera; M. Hewitson; S. Hild; D. Hoak; K. A. Hodge; K. Holt; T. Hong; S. Hooper; D. J. Hosken; J. Hough; E. J. Howell; B. Hughey; S. Husa; S. H. Huttner; T. Huynh-Dinh; D. R. Ingram; R. Inta; T. Isogai; A. Ivanov; K. Izumi; M. Jacobson; H. Jang; P. Jaranowski; W. W. Johnson; D. I. Jones; G. Jones; R. Jones; L. Ju; P. Kalmus; V. Kalogera; I. Kamaretsos; S. Kandhasamy; G. Kang; J. B. Kanner; E. Katsavounidis; W. Katzman; H. Kaufer; K. Kawabe; S. Kawamura; F. Kawazoe; W. Kells; D. G. Keppel; Z. Keresztes; A. Khalaidovski; F. Y. Khalili; E. A. Khazanov; B. Kim; C. Kim; D. Kim; H. Kim; K. Kim; N. Kim; Y. -M. Kim; P. J. King; M. Kinsey; D. L. Kinzel; J. S. Kissel; S. Klimenko; K. Kokeyama; V. Kondrashov; R. Kopparapu; S. Koranda; W. Z. Korth; I. Kowalska; D. Kozak; V. Kringel; S. Krishnamurthy; B. Krishnan; A. Królak

2011-10-02T23:59:59.000Z

464

Analytical Chemistry Division annual progress report for period ending December 31, 1982  

Science Conference Proceedings (OSTI)

The Analytical Chemistry Dvision of Oak Ridge National laboratory (ORNL) serves a multitude of functions for a clientele that exists both in and outside ORNL. These functions fall into the following general categories: (1) analytical research, development, and implementation; (2) programmatic research, development, and utilization; and (3) technical support. The Division is organized into five major sections, each of which may carry out any type of work falling in the three categories mentioned above. Chapters 1 through 5 of this report highlight progress within the five sections (analytical methodology, mass and emission spectrometry, radioactive materials, bio/organic analysis, and general and environmental analysis) during the period January 1, 1982 to December 31, 1982. A short summary introduces each chapter to indicate work scope. Information about quality assurance and safety programs is presented in Chapter 6, along with a tabulation of analyses rendered. Publications, oral presentations, professional activities, educational programs, and seminars are cited in Chapters 7 and 8. Approximately 61 articles, 32 proceedings publications and 37 reports have been published, and 107 oral presentations were given during this reporting period.

Lyon, W.S. (ed.)

1983-05-01T23:59:59.000Z

465

Periodic Table of Virus Capsids: Implications for Natural Selection and Design  

E-Print Network (OSTI)

Background: For survival, most natural viruses depend upon the existence of spherical capsids: protective shells of various sizes composed of protein subunits. So far, general evolutionary pressures shaping capsid design have remained elusive, even though an understanding of such properties may help in rationally impeding the virus life cycle and designing efficient nano-assemblies. Principal Findings: This report uncovers an unprecedented and species-independent evolutionary pressure on virus capsids, based on the the notion that the simplest capsid designs (or those capsids with the lowest ‘‘hexamer complexity’’, C h) are the fittest, which was shown to be true for all available virus capsids. The theories result in a physically meaningful periodic table of virus capsids that uncovers strong and overarching evolutionary pressures, while also offering geometric explanations to other capsid properties (rigidity, pleomorphy, auxiliary requirements, etc.) that were previously considered to be unrelatable properties of the individual virus. Significance: Apart from describing a universal rule for virus capsid evolution, our work (especially the periodic table) provides a language with which highly diverse virus capsids, unified only by geometry, may be described and related to each other. Finally, the available virus structure databases and other published data reiterate the predicted geometryderived

Ranjan V. Mannige; Charles L. Brooks

2009-01-01T23:59:59.000Z

466

"Radiative Closure Studies for Clear Skies During the ARM 2003 Aerosol Intensive Observation Period"  

SciTech Connect

The Department of Energy's Atmospheric Radiation Measurement (ARM) program sponsored a large intensive observation period (IOP) to study aerosol during the month of May 2003 around the Southern Great Plains (SGP) Climate Research Facility (CRF) in north central Oklahoma. Redundant measurements of aerosol optical properties were made using different techniques at the surface as well as in vertical profile with sensors aboard two aircraft. One of the principal motivations for this experiment was to resolve the disagreement between models and measurements of diffuse horizontal broadband shortwave irradiance at the surface, especially for modest aerosol loading. This paper focuses on using the redundant aerosol and radiation measurements during this IOP to compare direct beam and diffuse horizontal broadband shortwave irradiance measurements and models at the surface for a wide range of aerosol cases that occurred during 30 clear-sky periods on 13 days of May 2003. Models and measurements are compared over a large range of solar-zenith angles. Six different models are used to assess the relative agreement among them and the measurements. Better agreement than previously achieved appears to be the result of better specification of input parameters and better measurements of irradiances than in prior studies. Biases between modeled and measured direct irradiances are less than 1%, and biases between modeled and measured diffuse irradiances are less than 2%.

J. J. Michalsky, G. P. Anderson, J. Barnard, J. Delamere, C. Gueymard, S. Kato, P. Kiedron, A. McComiskey, and P. Ricchiazzi

2006-04-01T23:59:59.000Z

467

Fundamental modes of a trapped probe photon in optical fibers conveying periodic pulse trains  

SciTech Connect

Wave modes induced by cross-phase reshaping of a probe photon in the guiding structure of a periodic train of temporal pulses are investigated theoretically with emphasis on exact solutions to the wave equation for the probe. The study has direct connection with recent advances on the issue of light control by light, the focus being on the trapping of a low-power probe by a temporal sequence of periodically matched high-power pulses of a dispersion-managed optical fiber. The problem is formulated in terms of the nonlinear optical fiber equation with averaged dispersion, coupled to a linear equation for the probe including a cross-phase modulation term. Shape-preserving modes which are robust against the dispersion are shown to be induced in the probe, they form a family of mutually orthogonal solitons the characteristic features of which are determined by the competition between the self-phase and cross-phase effects. Considering a specific context of this competition, the theory predicts two degenerate modes representing a train of bright signals and one mode which describes a train of dark signals. When the walk-off between the pump and probe is taken into consideration, these modes have finite-momentum envelopes and none of them is totally transparent vis-a-vis the optical pump soliton.

Dikande, Alain M. [Laboratory of Research on Advanced Materials and Nonlinear Sciences (LaRAMaNS), Department of Physics, Faculty of Science, University of Buea, P.O. Box 63, Buea (Cameroon)

2010-01-15T23:59:59.000Z

468

Power plant construction: productivity and construction period. [Simulation with BOOM1 model  

SciTech Connect

Power plant capital costs become quite excessive with poor construction labor productivity. Building a power plant often creates a boom town or rapid-population-growth area. Rapid-growth conditions cause housing and service shortages, lowering the quality of living conditions in the area. One purpose for the research is to determine the effects of local living conditions on construction worker productivity. Results indicate the quality of local living conditions do not primarily affect construction worker productivity; other factors have greater influence. Research showed: (1) most construction workers can be induced to work in a boom-town situation, and (2) most construction workers will not become appreciably less productive in a situation of poor living conditions. If jobsite productivity does decrease, the decrease should be accredited to the poor-quality labor hired onto the jobsite. Results indicate that, for most power plant construction, productivity related cost decreases would be much less than interest and escalation cost increases when extending construction period. Power plant capital cost would increase when extending the construction schedule. However, under extreme conditions of very poor labor availability, extending the scheduled construction period may reduce total cost.

Schulte, S.C.

1977-02-01T23:59:59.000Z

469

Continuum Power Spectrum Components in X-Ray Sources: Detailed Modelling and Search for Coherent Periodicities  

E-Print Network (OSTI)

This paper summarises two recently developed techniques in power spectral analysis and their application to a sample of X-ray light curves of accreting collapsed objects in active galactic nuclei and X-ray binaries. The first technique is designed to carry out detailed model fitting of continuum power spectrum components arising from noise variability by using maximum likelihood methods. The technique is applied to the light curves of a number of highly variable AGNs observed with EXOSAT. Substantially steeper logarithmic power spectrum slopes are obtained than previously estimated with standard methods. The second technique was devised in order to reveal coherent periodicities in the presence of ``coloured" (i.e. non--white) noise variability components from the source. To this aim the power spectra are searched for significant narrow peaks superposed on the ``coloured" continuum components. We present the results of a search for an orbital modulation in the light curves of a sample of 25 low mass X--ray binaries (LMXRBs), for which the orbital period is either unknown or detected only at optical wavelengths. This led to the discovery of a significant X--ray orbital modulation at the few percent level in the burster MXB1636-539.

L. Stella; E. Arlandi; G. Tagliaferri; G. L. Israel

1994-11-13T23:59:59.000Z

470

Regulatory Perspective on Implementation of a Dose Standard for a One-Million Year Compliance Period  

Science Conference Proceedings (OSTI)

The disposal of high-level radioactive wastes in a potential geologic repository at Yucca Mountain, Nevada is governed by the U.S. Environmental Protection Agency (EPA) standards and U.S. Nuclear Regulatory Commission (NRC) regulations. The EPA has the responsibility for setting public health and safety and environmental standards for radioactive waste disposal at Yucca Mountain and it is the NRC's responsibility to implement those standards in its regulations to ensure public health and safety and the environment are protected. The U.S. Department of Energy (DOE), as the developer of the potential repository, must submit a license application to the NRC to seek approval to construct the repository. DOE must comply with NRC's regulations for NRC to authorize construction and license operation of a potential repository at Yucca Mountain. In 2005, EPA issued proposed revised standards and NRC issued proposed revised regulations for conducting performance assessment beyond 10,000 years up to 1 million years. The challenge for the EPA and NRC is to develop standards and regulations that provide an appropriate method for evaluating the safety of the potential repository given the unprecedented time period to be analyzed and the inherent uncertainties in estimating the future evolution of the Yucca Mountain site and the containment of the waste in the waste packages. A fundamental aspect of the proposed EPA standard is the specified approach for limiting undue speculation on future behavior of the site by constraining the features, events, and processes that need to be considered in the performance assessment. EPA proposed to limit the assessment of specific features, events, and processes in the period after 10,000 years to effects on the repository system that are most relevant (i.e., ignoring lesser or secondary effects that may add to speculation and uncertainties but would not be expected to have a significant effect on peak dose over a 1 million year period). For example, DOE's performance assessment may (1) limit the analysis of seismic activity to the effects caused by damage to the drifts and the waste package; (2) limit analysis of igneous activity to effects on the waste package that result in release of radionuclides to the atmosphere or ground water; (3) require DOE to include general corrosion in its analysis of engineered barrier performance, and (4) limit the effect of climate variation to those resulting from increased water flowing to the repository. NRC has been reviewing its performance assessment models and techniques to assure they are consistent with EPA's proposed requirements for the period after 10,000 years and adequate to assist the review of a potential license application from the DOE. Currently, only slight modifications to the models and approaches used in the performance assessment for the initial 10,000 years are expected to be needed to accommodate calculations for longer times (e.g., modifications to implement a steady-state value to represent the proposed climate change). NRC staff will be able to use the modified performance assessment to identify additional sensitivities associated with estimating doses over very long time periods and improve its understanding of the performance of a potential repository at Yucca Mountain. (author)

McCartin, Timothy [HLW Repository Safety, U.S. Nuclear Reg. Commission, Two White Flint North, 11545 Rockville Pike, Rockville, MD, 20852 - 2738 (United States)

2007-07-01T23:59:59.000Z

471

An Apparent Relationship between Eurasian Spring Snow Cover and the Advance Period of the Indian Summer Monsoon  

Science Conference Proceedings (OSTI)

Satellite images and Northern Hemisphere snow cover charts have been used to derive the Eurasian spring (March-May) snow cover area for the period 1967–78. The advance period of summer monsoon from the extreme southern tip of peninsular India to ...

B. Dey; O. S. R. U. Bhanu Kumar

1982-12-01T23:59:59.000Z

472

Exact Evaluation of Batch-Ordering Inventory Policies in Two-Echelon Supply Chains with Periodic Review  

Science Conference Proceedings (OSTI)

This paper studies a two-echelon supply chain with stochastic and discrete consumer demand, batch order quantities, periodic inventory review, and deterministic transportation times. Reorder point policies manage inventories at every location. Average ... Keywords: Inventory/production: multi-echelon, Periodic review heuristic., Stochastic demand

Gérard P. Cachon

2001-01-01T23:59:59.000Z

473

The Effect of Periodic Silane Burst on the Properties of GaN on Si (111) Substrates  

E-Print Network (OSTI)

The periodic silane burst technique was employed during metalorganic chemical vapor deposition of epitaxial GaN on AlN buffer layers grown on Si (111). Periodic silicon delta doping during growth of both the AlN and GaN ...

Zang, Keyan

474

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 2, Fluorescent lamp ballasts, television sets, room air conditioners, and kitchen ranges and ovens  

SciTech Connect

This document is divided into ``volumes`` B through E, dealing with individual classes of consumer products. Chapters in each present engineering analysis, base case forecasts, projected national impacts of standards, life-cycle costs and payback periods, impacts on manufacturers, impacts of standards on electric utilities, and environmental effects. Supporting appendices are included.

Not Available

1993-11-01T23:59:59.000Z

475

Viability study of photo-voltaic systems added to terrestrial electric vehicles  

DOE Green Energy (OSTI)

The purpose of the following computer study is to determine the set of necessary conditions under which the addition of photo-voltaic (PV) cells to electric vehicles provides a net utility or economic benefit. Economic benefits are given the primary focus and are evaluated in terms of a payback period.

Rippel, W.E.

1990-09-01T23:59:59.000Z

476

Preliminary Design of an Industrial/Commercial Microwave Clothes Dryer  

Science Conference Proceedings (OSTI)

Drying fabrics with microwave energy can reduce both the drying time and the drying temperature. This process provides a new level of fabric care to make all fabrics last longer and look better. The purpose of designing a 125-pound commercial/industrial microwave dryer was to perform cost exercises and calculate payback periods.

1997-09-09T23:59:59.000Z

477

The Effect of Wind Speed and Electric Rates On Wind Turbine Economics  

E-Print Network (OSTI)

The Effect of Wind Speed and Electric Rates On Wind Turbine Economics Economics of wind power depends mainly on the wind speeds and the turbine make and model. Definition: Simple Payback The "Simple period of a small wind power project. All the figures are per turbine, so it can be used for a one, two

Massachusetts at Amherst, University of

478

Dynamic Response of a Rotor-air Bearing System Due to Base Induced Periodic Motions  

E-Print Network (OSTI)

Oil-free microturbomachinery (MTM) are inevitably subjected to base or foundation excitations: multiple periodic load excitations from internal combustion (IC) engines in turbochargers, for example. Too large base excitations can produce severe damage, even failure, due to hard collision or rubbing contact between a rotor and its bearings. Therefore, it is paramount to evaluate the reliability of rotor-air bearing systems to withstanding base load excitations. In 2008, intermittent shock excitations, up to 30 g (pk-pk), were introduced to a test rig consisting of a rotor (0.825 kg) supported on two hybrid flexure pivot tilting pad gas bearings (FPTPBs). The experiments demonstrated the reliability of the gas bearings to withstanding external transient load excitations. Presently, a shaker delivers periodic load excitations to the base plate supporting the test rig. The whole system, weighing 48 kg, is supported on two soft coil springs and its lowest natural frequency is ~5 Hz. The rod connecting the shaker to the base plate is not affixed rigidly to the test rig base. The rod merely pushes on the base plate and hence the induced based motions are intermittent with multiple impacts and frequencies. As with most practical conditions, the base motion frequencies (5-12 Hz) are low respective to the operating speed of the rotor-bearing system. Rotor speed coast down tests evidence the rotor-bearing system natural frequency when the gas bearings are supplied with feed pressures increasing from 2.36 to 5.08 bar (ab). Shaker excitation induced rotor response, relative to the bearing housings, contains the main input frequency (5-12 Hz) and its super harmonics; and because of the intermittency of the base motions, it also excites the rotor-bearing system natural frequency, with smaller motion amplitudes than synchronous motion components. The excitation of the system natural frequency does not mean rotordynamic instability. With base induced motions, the rotor motion amplitude at the system natural frequency increases as the gas bearing feed pressure decreases, as the rotor speed increases, and as the shaker input excitation frequency increases (5-12 Hz). Hence, the test rotor-air bearing system is highly sensitive to base motions, intermittent in character, in particular when the gas bearings are supplied with a low feed pressure. Predicted rotor motion responses obtained from XLTRC2 and an analytical rigid rotor model, both including the (measured) periodic base motions, show good correlation with the measurements. The research results demonstrate further the applicability of gas bearings into oil-free high speed MTM.

Niu, Yaying

2009-08-01T23:59:59.000Z

479

Metals and Ceramics Division progress report for period ending December 31, 1993  

SciTech Connect

This report provides an overview of activities and accomplishsments of the division from October 1992 through December 1993; the division is organized to provide technical support, mainly in the area of high-temperature materials, for technologies being developed by DOE. Activities span the range from basic research to industrial interactions (cooperative research and technology transfer). Sections 1-5 describe the different functional groups (engineering materials, high-temperature materials, materials science, ceramics, nuclear fuel materials). Sect. 6 provides an alternative view of the division in terms of the major programs, most of which cross group lines. Sect. 7 summarizes external interactions including cooperative R and D programs and technology transfer functions. Finally, Sect. 8 briefly describes the division`s involvement in educational activities. Several organizational changes were effected during this period.

Craig, D.F.; Bradley, R.A.; Weir, J.R. Jr.

1994-07-01T23:59:59.000Z

480

High Pressure Fuel Storage Cylinders Periodic Inspection and End of Life Issues  

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

6/2010 6/2010 www.cleanvehicle.org 1 High Pressure Fuel Storage Cylinders Periodic Inspection and End of Life Issues DOE Vehicular Tank Workshop April 29, 2010 Douglas Horne, PE The Facts  High pressure Type 4 gaseous fuel tanks are now designed under standards that specify finite lifetimes of 15, 20 and 25 years based on specific design and testing (the HGV2 standard under development had a life as short as 10 years as an option)  It is unique within the transportation industry to have a critical device (the fuel tank) with a designated life that may be shorter than the vehicle itself  Although vehicle owners are told up front of the limited life fuel storage cylinders some tend to forget after 15 years  A parallel concern is the requirement for these fuel tanks

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481

TFE Verification Program: Semiannual report for the period ending September 30, 1987  

DOE Green Energy (OSTI)

The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 years. The TFE Verification Program builds directly on the technology and data base developed in the 1960s and early 1970s in an AEC/NASA program, and in the SP-100 program conducted in 1983, 1984 and 1985. In the SP-100 program, the attractive features of thermionic power conversion technology were recognized, but concern was expressed over the lack of fast reactor irradiation data. The TFE Verification Program addresses this concern.

Not Available

1988-03-01T23:59:59.000Z

482

Derivation of effective macroscopic Stokes-Cahn-Hilliard equations for periodic immiscible flows in porous media  

E-Print Network (OSTI)

Using thermodynamic and variational principles we examine a basic phase field model for a mixture of two incompressible fluids in strongly perforated domains. With the help of the multiple scale method with drift and our recently introduced splitting strategy for Ginzburg-Landau/Cahn-Hilliard type equations [1], we rigorously derive an effective macroscopic phase field formulation under the assumption of periodic flow and a sufficiently large Peclet number. As for classical convection-diffusion problems, we obtain systematically diffusion-dispersion relations (including Taylor-Aris-dispersion). Our results also provide a convenient computational framework to macroscopically track interfaces in porous media. In view of the well-known versatility of phase field models, our study proposes a promising model for many engineering and scientific applications such as multiphase flows in porous media, microfluidics, and fuel cells.

Schmuck, Markus; Kalliadasis, Serafim

2012-01-01T23:59:59.000Z

483

Derivation of effective macroscopic Stokes-Cahn-Hilliard equations for periodic immiscible flows in porous media  

E-Print Network (OSTI)

Using thermodynamic and variational principles we examine a basic phase field model for a mixture of two incompressible fluids in strongly perforated domains. With the help of the multiple scale method with drift and our recently introduced splitting strategy for Ginzburg-Landau/Cahn-Hilliard-type equations [Schmuck et al., Proc. R. Soc. A 468:3705-3724, 2012.], we rigorously derive an effective macroscopic phase field formulation under the assumption of periodic flow and a sufficiently large P\\'eclet number. As for classical convection-diffusion problems, we obtain systematically diffusion-dispersion relations (including Taylor-Aris-dispersion). Our results also provide a convenient analytical and computational framework to macroscopically track interfaces in porous media. In view of the well-known versatility of phase field models, our study proposes a promising model for many engineering and scientific applications such as multiphase flows in porous media, microfluidics, and fuel cells.

Markus Schmuck; Marc Pradas; Gregorios A. Pavliotis; Serafim Kalliadasis

2012-10-23T23:59:59.000Z

484

Progress report for the first twenty-one months of the contract period  

DOE Green Energy (OSTI)

During the period of July 1, 1978, through March 31, 1980 in-depth research of the legal and institutional obstacles and incentives to the development of small scale hydroelectric power in all of the nineteen northeastern states was performed. Research into economic issues associated with the development of small scale hydroelectric power was undertaken by the project economist. Special research activities have been undertaken with respect to the federal dam safety programs, the National Pollution Discharge Elimination System requirements of the Federal Clean Water Act and the implications of those requirements to small scale hydroelectric power, riparian law on lake and reservoir fluctuation in the State of Maine, and the implications of Title II and IV of the Public Utility Regulatory Policies Act of 1978 to the development of small scale hydroelectric power. The results of these studies are reported. (LCL)

Not Available

1980-01-01T23:59:59.000Z

485

The Harmonic and Sideband Structure of the Kilohertz Quasi-Periodic Oscillations in Sco X-1  

E-Print Network (OSTI)

We use data from the Rossi X-ray Timing Explorer to search for harmonics and sidebands of the two simultaneous kilohertz quasi-periodic oscillations (kHz QPOs) in Sco X-1. We do not detect any of these harmonics or sidebands, with 95% confidence upper limits to their power between ~ 1% and ~ 10% of the power of the upper kHz QPO. The oscillations produced at these frequencies may be attenuated in a scattering corona around the neutron star. We find that upper limits to the unattenuated power of some of the strongest theoretically predicted harmonics and sidebands are as low as ~ 2% of the unattenuated power of the high-frequency QPO in Sco X-1.

Mariano Mendez; Michiel van der Klis

2000-06-19T23:59:59.000Z

486

TFE Verification Program: Semiannual report for the period ending October 31, 1988  

DOE Green Energy (OSTI)

The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 years. The TFE Verification Program builds directly on the technology and data base developed in the 1960s and early 1970s in an AEC/NASA program, and in the SP-100 program conducted in 1983, 1984 and 1985. In the SP-100 program, the attractive features of thermionic power conversion technology were recognized, but concern was expressed over the lack of fast reactor irradiation data. 65 figs., 36 tabs.

Not Available

1989-01-01T23:59:59.000Z

487

Stability of A-150 plastic ionization chamber response over a ~30 year period  

SciTech Connect

At the NIU Institute for Neutron Therapy at Fermilab, the clinical tissue-equivalent ionization chamber response is measured every treatment day using a cesium source that was configured to match readings obtained at the National Bureau of Standards. Daily measurements are performed in air using the air-to-tissue dose conversion factors given in AAPM Report no. 7. The measured exposure calibration factors have been tabulated and graphed as a function of time from 1978 to present. For A-150 plastic ionization chambers, these factors exhibit a sinusoidal variation with a period of approximately one year and amplitude of {+-} 1%. This variation, attributable to the hygroscopic nature of A-150 plastic, is correlated with the relative humidity of the facility, and is greater than the humidity corrections for gas described in the literature. Our data suggest that chamber calibration should be performed at least weekly to accommodate these variations.

Kroc, Thomas K.; Lennox, Arlene J.; /Fermilab

2007-08-01T23:59:59.000Z

488

Leakage-Aware Reallocation for Periodic Real-Time Tasks on Multicore Processors  

E-Print Network (OSTI)

It is an increasingly important issue to reduce the energy consumption of computing systems. In this paper, we consider partition based energy-aware scheduling of periodic real-time tasks on multicore processors. The scheduling exploits dynamic voltage scaling (DVS) and core sleep scheduling to reduce both dynamic and leakage energy consumption. If the overhead of core state switching is non-negligible, however, the performance