National Library of Energy BETA

Sample records for increased payback periods

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

    SciTech Connect (OSTI)

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

    2004-03-31

    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.

  2. Residential GSHPs: Efficiency With Short Payback Periods

    SciTech Connect (OSTI)

    Cooperman, Alissa; Dieckmann, John; Brodrick, James

    2012-04-30

    This article discusses ground source heat pumps (GSHPs) for residential application as an alternative to conventional HVAC systems. A listing of current space heating energy sources are presented which are then followed by a technology overview as advances have made GSHPs more efficient. The article concludes with potential energy savings offered by GSHPs and a brief market overview.

  3. The Shockingly Short Payback of Energy Modeling | Department of Energy

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

    The Shockingly Short Payback of Energy Modeling The Shockingly Short Payback of Energy Modeling May 23, 2016 - 11:31am Addthis Architecture firm HOK calculated the payback of energy modeling—cost of modeling divided by modeled energy cost savings—for a number of their projects. The results? Modeling usually pays for itself in a month or two. Credit: HOK. Architecture firm HOK calculated the payback of energy modeling-cost of modeling divided by modeled energy cost savings-for a number

  4. PV vs. Solar Water Heating- Simple Solar Payback

    Broader source: Energy.gov [DOE]

    Solar energy systems hang their hats on payback. Financial payback is as tangible as money in your bank account, while other types of payback—like environmental externalities—are not usually calculated in dollars. There’s no doubt that photovoltaic (PV) and solar hot water (SHW) systems will pay you back. Maybe not as quickly as you’d like, but all systems will significantly offset their cost over their lifetimes. Here we’ll try to answer: Which system will give the quickest return on investment (ROI)?

  5. Chiller-heater unit nets building 2-yr payback

    SciTech Connect (OSTI)

    Duffy, J.

    1983-05-09

    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)

  6. Development of an Enhanced Payback Function for the Superior Energy Performance Program

    SciTech Connect (OSTI)

    Therkelsen, Peter; Rao, Prakash; McKane, Aimee; Sabouni, Ridah; Sheihing, Paul

    2015-08-03

    The U.S. DOE Superior Energy Performance (SEP) program provides recognition to industrial and commercial facilities that achieve certification to the ISO 50001 energy management system standard and third party verification of energy performance improvements. Over 50 industrial facilities are participating and 28 facilities have been certified in the SEP program. These facilities find value in the robust, data driven energy performance improvement result that the SEP program delivers. Previous analysis of SEP certified facility data demonstrated the cost effectiveness of SEP and identified internal staff time to be the largest cost component related to SEP implementation and certification. This paper analyzes previously reported and newly collected data of costs and benefits associated with the implementation of an ISO 50001 and SEP certification. By disaggregating “sunk energy management system (EnMS) labor costs”, this analysis results in a more accurate and detailed understanding of the costs and benefits of SEP participation. SEP is shown to significantly improve and sustain energy performance and energy cost savings, resulting in a highly attractive return on investment. To illustrate these results, a payback function has been developed and is presented. On average facilities with annual energy spend greater than $2M can expect to implement SEP with a payback of less than 1.5 years. Finally, this paper also observes and details decreasing facility costs associated with implementing ISO 50001 and certifying to the SEP program, as the program has improved from pilot, to demonstration, to full launch.

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

    SciTech Connect (OSTI)

    Johnston, S.

    2012-06-01

    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.

  8. Comparative life-cycle energy payback analysis of multi-junction a-SiGe and nanocrystalline/a-Si modules

    SciTech Connect (OSTI)

    Fthenakis, V.; Kim, H.

    2010-07-15

    Despite the publicity of nanotechnologies in high tech industries including the photovoltaic sector, their life-cycle energy use and related environmental impacts are understood only to a limited degree as their production is mostly immature. We investigated the life-cycle energy implications of amorphous silicon (a-Si) PV designs using a nanocrystalline silicon (nc-Si) bottom layer in the context of a comparative, prospective life-cycle analysis framework. Three R and D options using nc-Si bottom layer were evaluated and compared to the current triple-junction a-Si design, i.e., a-Si/a-SiGe/a-SiGe. The life-cycle energy demand to deposit nc-Si was estimated from parametric analyses of film thickness, deposition rate, precursor gas usage, and power for generating gas plasma. We found that extended deposition time and increased gas usages associated to the relatively high thickness of nc-Si lead to a larger primary energy demand for the nc-Si bottom layer designs, than the current triple-junction a-Si. Assuming an 8% conversion efficiency, the energy payback time of those R and D designs will be 0.7-0.9 years, close to that of currently commercial triple-junction a-Si design, 0.8 years. Future scenario analyses show that if nc-Si film is deposited at a higher rate (i.e., 2-3 nm/s), and at the same time the conversion efficiency reaches 10%, the energy-payback time could drop by 30%.

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

    SciTech Connect (OSTI)

    White, Scott W.

    2006-12-15

    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.

  10. INCREASE

    ScienceCinema (OSTI)

    None

    2013-07-22

    The Interdisciplinary Consortium for Research and Educational Access in Science and Engineering (INCREASE), assists minority-serving institutions in gaining access to world-class research facilities.

  11. Increased

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

    Increased confinement improvement in a reversed-field pinch using double-pulsed poloidal current drive Y. Yagi, a) H. Koguchi, Y. Hirano, T. Shimada, H. Sakakita, and S. Sekine National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan B. E. Chapman and J. S. Sarff University of Wisconsin, Madison, Wisconsin 53706 ͑Received 12 December 2002; accepted 18 April 2003͒ The pulsed poloidal current drive ͑PPCD͒ ͓J. S. Sarff et al.,

  12. Industrial Assessment Centers - Small Manufacturers Reduce Energy & Increase Productivity

    SciTech Connect (OSTI)

    2015-11-06

    Since 1976, the Industrial Assessment Centers (IACs), administered by the US Department of Energy, have supported small and medium-sized American manufacturers to reduce energy use and increase their productivity and competitiveness. The 24 IACs, located at premier engineering universities around the country (see below), send faculty and engineering students to local small and medium-sized manufacturers to provide no-cost assessments of energy use, process performance and waste and water flows. Under the direction of experienced professors, IAC engineering students analyze the manufacturer’s facilities, energy bills and energy, waste and water systems, including compressed air, motors/pumps, lighting, process heat and steam. The IACs then follow up with written energy-saving and productivity improvement recommendations, with estimates of related costs and payback periods.

  13. The utilization of the microflora indigenous to and present in oil-bearing formations to selectively plug the more porous zones thereby increasing oil recovery during waterflooding. Annual report for the period, January 1, 1994--December 31, 1994

    SciTech Connect (OSTI)

    Brown, L.; Vadie, A.

    1995-08-01

    This project is a field demonstration of the ability of insitu indigenous microorganisms in the North Blowhorn Creek Oil Field to reduce the flow of injection water in the more permeable zones thereby diverting flow to other areas of the reservoir and thus increase the efficiency of the waterflooding operation. This effect is to be accomplished by adding inorganic nutrients in the form of Potassium nitrate and orthophosphate, to the injection water. In Phase I, which has been completed, the following results were obtained. Two new wells were drilled in the field and live cores were recovered. Analyses of the cores proved that viable microorganisms were present and since no sulfate-reducing bacteria (SRB) were found, the area in which the wells were drilled, probably had not been impacted by injection water, since SRB were prevalent in fluids from most wells in the field. Laboratory waterflooding tests using live cores demonstrated that the rate of flow Of simulated production water through the core increased with time when used alone while the rate of flow decreased when nitrate and phosphate salts were added to the simulated production water. Since there is only a small amount of pressure on the influent, the simulated production water was not forced to sweep other areas of the core. The field demonstration (Phase II) involves adding nutrients to four injector wells and monitoring the surrounding producers. The exact kind and amounts of nutrients to be employed and the schedule for their injection were formulated on the basis of information obtained in the laboratory waterflooding tests conducted using the live cores from the field. Results obtained in these tests will not only be compared to historical data for the wells but also to four injectors and their corresponding producers (control) which were chosen for their similarity to the four test patterns.

  14. Period meter for reactors

    DOE Patents [OSTI]

    Rusch, Gordon K.

    1976-01-06

    An improved log N amplifier type nuclear reactor period meter with reduced probability for noise-induced scrams is provided. With the reactor at low power levels a sampling circuit is provided to determine the reactor period by measuring the finite change in the amplitude of the log N amplifier output signal for a predetermined time period, while at high power levels, differentiation of the log N amplifier output signal provides an additional measure of the reactor period.

  15. Scoping Period Closed

    Broader source: Energy.gov [DOE]

    The environmental impact statement (EIS) scoping period has ended. DOE is preparing a Draft EIS that will analyze and compare the potential environmental impacts of various alternative approaches...

  16. Genealogy of periodic trajectories

    SciTech Connect (OSTI)

    de Adguiar, M.A.M.; Maldta, C.P.; de Passos, E.J.V.

    1986-05-20

    The periodic solutions of non-integrable classical Hamiltonian systems with two degrees of freedom are numerically investigated. Curves of periodic families are given in plots of energy vs. period. Results are presented for this Hamiltonian: H = 1/2(p/sub x//sup 2/ + p/sub y//sup 2/) + 1/2 x/sup 2/ + 3/2 y/sup 2/ - x/sup 2/y + 1/12 x/sup 4/. Properties of the families of curves are pointed out. (LEW)

  17. Scoping Period Open

    Broader source: Energy.gov [DOE]

    DOE has published in the Federal Register a Notice of Intent to prepare an environmental impact statement (EIS), and the scoping period is open for public comment for at least 30 days. DOE requests...

  18. Holding Period Complete

    Broader source: Energy.gov [DOE]

    DOE has published a Final Environmental Impact Statement (EIS), and the 30-day waiting period has ended. DOE is preparing a Record of Decision to announce and explain its chosen project alternative...

  19. Comment Period Closed Explained

    Broader source: Energy.gov [DOE]

    The public comment period on the Draft Environmental Impact Statement (EIS) has ended, and DOE is preparing a Final EIS. The Final EIS will consider and respond to all timely public comments on the...

  20. Community Wind Handbook/Calculate Simple Payback | Open Energy...

    Open Energy Info (EERE)

    and decide whether wind energy will work for you. The spreadsheet can be opened using Microsoft Excel software. You provide information about how you will finance the system, the...

  1. User to net eleven-month payback on window film

    SciTech Connect (OSTI)

    Kennedy, K.

    1985-08-12

    Solar window insulation manufactured by Solar Master Film Corp. will save a Labor Department building $82,000 annually in electricity costs for air conditioning and $58,000 in steam costs. There could be an additional savings of about $1800 after one year because of lower demand charges for electricity. Solar film decreases the U-value of glass, thus lowering the conduction losses of cool air in the summertime and of warm air in the winter. The quality of Solar Master's two-ply insulation and the experience of the firm and bid price were criteria that helped Solar Master get the contract.

  2. Parc Periodical | Photosynthetic Antenna Research Center

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

    Parc Periodical Parc Periodical PARC Periodical | Volume 7, Issue 2 PARC Periodical | Volume 7, Issue 1 PARC Periodical | Volume 6, Issue 6 PARC Periodical | Volume 6, Issue 5 PARC...

  3. Shortest recurrence periods of novae

    SciTech Connect (OSTI)

    Kato, Mariko [Department of Astronomy, Keio University, Hiyoshi, Yokohama 223-8521 (Japan); Saio, Hideyuki [Astronomical Institute, Graduate School of Science, Tohoku University, Sendai 980-8578 (Japan); Hachisu, Izumi [Department of Earth Science and Astronomy, College of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 (Japan); Nomoto, Ken'ichi, E-mail: mariko@educ.cc.keio.ac.jp [Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan)

    2014-10-01

    Stimulated by the recent discovery of the 1 yr recurrence period nova M31N 2008-12a, we examined the shortest recurrence periods of hydrogen shell flashes on mass-accreting white dwarfs (WDs). We discuss the mechanism that yields a finite minimum recurrence period for a given WD mass. Calculating the unstable flashes for various WD masses and mass accretion rates, we identified a shortest recurrence period of about two months for a non-rotating 1.38 M {sub ?} WD with a mass accretion rate of 3.6 10{sup 7} M {sub ?} yr{sup 1}. A 1 yr recurrence period is realized for very massive (? 1.3 M {sub ?}) WDs with very high accretion rates (? 1.5 10{sup 7} M {sub ?} yr{sup 1}). We revised our stability limit of hydrogen shell burning, which will be useful for binary evolution calculations toward Type Ia supernovae.

  4. Operation Periods: Single Column Model

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

    2 Fall 2002 Intensive Operation Periods: Single Column Model and Unmanned Aerospace Vehicle In an Intensive Operation Period (IOP) on November 3-23, 2002, researchers at the SGP CART site are collecting a detailed data set for use in improving the Single Column Model (SCM), a scaled- down climate model. The SCM represents one vertical column of air above Earth's surface and requires less computation time than a full-scale global climate model. Researchers first use the SCM to efficiently improve

  5. Disk Quota Increase Request

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

    Disk Quota Increase Disk Quota Increase Request NERSC will consider reasonable requests for changes in disk space and inode limits. Please submit a request through the "Request ...

  6. Skylighting saves over $20,000/year at paint manufacturing site

    SciTech Connect (OSTI)

    Arakawa, W.

    1983-05-01

    A discussion of the economics and installation of skylights in a warehouse and manufacturing area was presented. Included in the discussion were details on the installation, costs, energy conserved, savings, and payback period. In the particular case outlined, the installation costs were dependent on the type of existing roof. These costs ranged from $80 per 4 ft. by 8 ft. unit to $375 per 8 ft. by 8 ft. unit. In skylighting a 250,000 sq. ft. warehouse (1.5% of the roof area), the installation cost was $44,458. The power saving was $14,706 per year, with a payback period of slightly over three years. Later increase in power rates by 20% decreased the payback period by almost a year.

  7. Polymers with increased order

    DOE Patents [OSTI]

    Sawan, Samuel P.; Talhi, Abdelhafid; Taylor, Craig M.

    1998-08-25

    The invention features polymers with increased order, and methods of making them featuring a dense gas.

  8. PARC Periodical | Photosynthetic Antenna Research Center

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

    PARC Periodical PARC Periodical August 30, 2016 PARC Periodical | Volume 7, Issue 6 VIEW ARTICLE HERE Read more about PARC Periodical | Volume 7, Issue 6 June 1, 2016 PARC Periodical | Volume 7, Issue 5 VIEW ARTICLE HERE Read more about PARC Periodical | Volume 7, Issue 5 March 1, 2016 PARC Periodical | Volume 7, Issue 4 VIEW ARTICLE HERE Read more about PARC Periodical | Volume 7, Issue 4 February 16, 2016 PARC Periodical | Volume 7, Issue 3 VIEW ARTICLE HERE Read more about PARC Periodical |

  9. Down hole periodic seismic generator

    DOE Patents [OSTI]

    Hardee, Harry C.; Hills, Richard G.; Striker, Richard P.

    1989-01-01

    A down hole periodic seismic generator system 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.

  10. Advanced downhole periodic seismic generator

    DOE Patents [OSTI]

    Hardee, Harry C.; Hills, Richard G.; Striker, Richard P.

    1991-07-16

    An advanced downhole periodic seismic generator system 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.

  11. Intensive Observation Period Projects Scheduled

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

    1 Intensive Observation Period Projects Scheduled Several IOP projects have been scheduled for the SGP CART site this spring. These projects either have already begun or will begin shortly. Radiosondes The RS-90 Transition IOP is currently under way. The RS-90 model radiosonde is gradually replacing the older RS-80 model. Radiosondes are instrument packages attached to and launched by weather balloons. The instruments measure atmospheric pressure, temperature, and relative humidity as the

  12. Periodic permanent magnet focused klystron

    DOE Patents [OSTI]

    Ferguson, Patrick; Read, Michael; Ives, R Lawrence

    2015-04-21

    A periodic permanent magnet (PPM) klystron has beam transport structures and RF cavity structures, each of which has permanent magnets placed substantially equidistant from a beam tunnel formed about the central axis, and which are also outside the extent of a cooling chamber. The RF cavity sections also have permanent magnets which are placed substantially equidistant from the beam tunnel, but which include an RF cavity coupling to the beam tunnel for enhancement of RF carried by an electron beam in the beam tunnel.

  13. Managing Increased Charging Demand

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

    Managing Increased Charging Demand Carrie Giles ICF International, Supporting the Workplace Charging Challenge Workplace Charging Challenge Do you already own an EV? Are you...

  14. Groundwater Periodic Monitoring Reports | Department of Energy

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

    Groundwater Periodic Monitoring Reports Groundwater Periodic Monitoring Reports Topic: David Rhodes DOE, Provided Information on the Watersheds at LANL and the Monitoring Schedule ...

  15. Residential propane price increases

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

    propane price increases The average retail price for propane is 1.98 per gallon, up 1.1 cents from last week, based on the residential heating fuel survey by the U.S. Energy ...

  16. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose 3.9 cents from a week ago to 2.80 per gallon. That's up 53.7 cents from a year ago, based on the residential ...

  17. Residential propane price increases

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

    propane price increases The average retail price for propane is 1.96 per gallon, up 1.8 cents from last week, based on the residential heating fuel survey by the U.S. Energy ...

  18. Residential propane price increases

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

    propane price increases The average retail price for propane is 2.03 per gallon, up 1 cent from last week, based on the residential heating fuel survey by the U.S. Energy ...

  19. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose to 2.40 per gallon, up 1.1 cents from a week ago, based on the residential heating fuel survey by the U.S. Energy ...

  20. Residential propane price increases

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

    propane price increases The average retail price for propane is 2.41 per gallon, up 6-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  1. Residential propane price increases

    Gasoline and Diesel Fuel Update (EIA)

    propane price increases The average retail price for propane is 1.96 per gallon, up 7-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  2. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose 4.8 cents from a week ago to 2.76 per gallon. That's up 51.2 cents from a year ago, based on the residential ...

  3. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose 5.5 cents per gallon from last week to 2.62 per gallon; up 37.4 cents from a year ago, based on the residential ...

  4. Residential propane price increases

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

    propane price increases The average retail price for propane is 2.00 per gallon, up 7-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  5. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose 10.3 cents from a week ago to 2.96 per gallon. That's up 68.1 cents from a year ago, based on the residential ...

  6. Residential propane prices increase

    Gasoline and Diesel Fuel Update (EIA)

    propane prices increase The average retail price for propane rose 3.2 cents from a week ago to 2.86 per gallon. That's up 59.3 cents from a year ago, based on the residential ...

  7. Residential propane prices increase

    Gasoline and Diesel Fuel Update (EIA)

    propane prices increase The average retail price for propane rose 9.1 cents from a week ago to 2.71 per gallon. That's up 46.9 cents from a year ago, based on the residential ...

  8. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose 2.3 cents per gallon from last week to 2.57 per gallon; up 32.2 cents from a year ago, based on the residential ...

  9. Residential propane price increases

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

    propane price increases The average retail price for propane is 2.02 per gallon, up 5-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  10. Residential propane prices increase

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

    propane prices increase The average retail price for propane rose 2.5 cents from a week ago to 2.83 per gallon. That's up 56 cents from a year ago, based on the residential ...

  11. Residential propane price increases

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

    propane price increases The average retail price for propane is 1.98 per gallon, up 5-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  12. Residential propane price increases

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

    propane price increases The average retail price for propane is 1.99 per gallon, up 3-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  13. Residential propane price increases

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

    propane price increases The average retail price for propane is 2.01 per gallon, up 1.2 cents from last week, based on the residential heating fuel survey by the U.S. Energy ...

  14. Residential propane price increases

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

    propane price increases The average retail price for propane is 2.02 per gallon, up 4-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  15. Residential propane price increases

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

    propane price increases The average retail price for propane is 1.97 per gallon, up 6-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. ...

  16. Residential propane price increases

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

    4, 2015 Residential propane price increases The average retail price for propane is 2.36 per gallon, up half of a cent from last week, based on the residential heating fuel survey ...

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

    Open Energy Info (EERE)

    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...

  18. Residential propane price increases

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

    propane price increases The average retail price for propane is $2.02 per gallon, up 4-tenths of a cent from last week, based on the residential heating fuel survey by the U.S. Energy Information Administration. Propane prices in the Midwest region averaged $1.48 per gallon, down 1-tenth of a cent from last week, and down 43

  19. Retro-Commissioning Increases Data Center Efficiency at Low Cost

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

    Achieved at SRS Basic Retro-Cx: 1. Eliminated electric reheat. 2. Turned off humidification devices. 3. Tuned floor tile airflow. 4. Turned off three CRAC units. Total estimated savings ≅ 1,400,000 kWh/year Retro-Cx cost at SRS: Engineering consultant: preliminary, on-site, and follow-up work including data measurements and retrieval. SRS on-site facilities personnel and engineering support. Total estimated cost ≅ $25,000 Simple Payback at SRS: Estimated, at $0.045/kWh = 2.5 months. taken

  20. Diesel prices increase

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

    Diesel prices increase The U.S. average retail price for on-highway diesel fuel rose to $3.84 a gallon on Monday. That's up 2.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at $4.00 a gallon, up 2.2 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.75 a gallon, up 8-tenths of a penny. This is Marlana Anderson, with EIA, in Washington. For more information, contact

  1. Diesel prices increase

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

    Diesel prices increase The U.S. average retail price for on-highway diesel fuel rose to $3.90 a gallon on Monday. That's up 3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.11 a gallon, up 4.2 cents from a week ago. Prices were lowest in the Gulf Coast states at 3.79 a gallon, up 1.7 cents.

  2. Diesel prices increase nationally

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

    Diesel prices increase nationally The U.S. average retail price for on-highway diesel fuel rose to $3.91 a gallon on Monday. That's up 1.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 4.07 a gallon, up 1 1/2 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.83 a gallon, up 7-tenths of a penny.

  3. Diesel prices slightly increase

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

    Diesel prices slightly increase The U.S. average retail price for on-highway diesel fuel rose slightly to $3.87 a gallon on Monday. That's up 2-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.07 a gallon, up half a penny from a week ago. Prices were lowest in the Gulf Coast states at 3.77 a gallon, up 6-tenths of a penny.

  4. SES Probationary Period | Department of Energy

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

    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

  5. Gas revenue increasingly significant

    SciTech Connect (OSTI)

    Megill, R.E.

    1991-09-01

    This paper briefly describes the wellhead prices of natural gas compared to crude oil over the past 70 years. Although natural gas prices have never reached price parity with crude oil, the relative value of a gas BTU has been increasing. It is one of the reasons that the total amount of money coming from natural gas wells is becoming more significant. From 1920 to 1955 the revenue at the wellhead for natural gas was only about 10% of the money received by producers. Most of the money needed for exploration, development, and production came from crude oil. At present, however, over 40% of the money from the upstream portion of the petroleum industry is from natural gas. As a result, in a few short years natural gas may become 50% of the money revenues generated from wellhead production facilities.

  6. A highly specific test for periodicity

    SciTech Connect (OSTI)

    Ansmann, Gerrit

    2015-11-15

    We present a method that allows to distinguish between nearly periodic and strictly periodic time series. To this purpose, we employ a conservative criterion for periodicity, namely, that the time series can be interpolated by a periodic function whose local extrema are also present in the time series. Our method is intended for the analysis of time series generated by deterministic time-continuous dynamical systems, where it can help telling periodic dynamics from chaotic or transient ones. We empirically investigate our method's performance and compare it to an approach based on marker events (or Poincaré sections). We demonstrate that our method is capable of detecting small deviations from periodicity and outperforms the marker-event-based approach in typical situations. Our method requires no adjustment of parameters to the individual time series, yields the period length with a precision that exceeds the sampling rate, and its runtime grows asymptotically linear with the length of the time series.

  7. Seismic isolation of two dimensional periodic foundations

    SciTech Connect (OSTI)

    Yan, Y.; Mo, Y. L.; Laskar, A.; Cheng, Z.; Shi, Z.; Menq, F.; Tang, Y.

    2014-07-28

    Phononic crystal is now used to control acoustic waves. When the crystal goes to a larger scale, it is called periodic structure. The band gaps of the periodic structure can be reduced to range from 0.5?Hz to 50?Hz. Therefore, the periodic structure has potential applications in seismic wave reflection. In civil engineering, the periodic structure can be served as the foundation of upper structure. This type of foundation consisting of periodic structure is called periodic foundation. When the frequency of seismic waves falls into the band gaps of the periodic foundation, the seismic wave can be blocked. Field experiments of a scaled two dimensional (2D) periodic foundation with an upper structure were conducted to verify the band gap effects. Test results showed the 2D periodic foundation can effectively reduce the response of the upper structure for excitations with frequencies within the frequency band gaps. When the experimental and the finite element analysis results are compared, they agree well with each other, indicating that 2D periodic foundation is a feasible way of reducing seismic vibrations.

  8. SES Performance-Based Pay Increase

    Office of Energy Efficiency and Renewable Energy (EERE)

    An agency may provide a pay increase to allow a senior executive to advance his or her relative position with the SES rate range only upon a determination by the authorized agency official that the executive’s individual performance and/or contribution to agency performance so warrant. A senior executive who receives an annual summary rating of Outstanding or equivalent may be considered for an annual pay increase. A senior executive who receives an annual summary rating of less than Fully Successful or equivalent may not receive an increase in pay for the current appraisal period. The expectation is that executives who are paid consistent with their current level of responsibilities and who receive an acceptable (“Fully Successful” or better) annual summary rating will be eligible to receive a discretionary performance-based pay increase. Pay increases that advance an executive's position in the SES rate range restart the clock under the 12-month rule.

  9. PARC Periodical | Vol. 6, Issue 4 | Photosynthetic Antenna Research Center

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

    PARC Periodical | Vol. 6, Issue 4 April 6, 2015 PARC Periodical | Vol. 6, Issue 4 VIEW PERIODICAL HERE

  10. Do triatomic molecules echo atomic periodicity?

    SciTech Connect (OSTI)

    Hefferlin, R. Barrow, J.

    2015-03-30

    Demonstrations of periodicity among triatomic-molecular spectroscopic constants underscore the role of the periodic law as a foundation of chemistry. The objective of this work is to prepare for another test using vibration frequencies ?{sub 1} of free, ground-state, main-group triatomic molecules. Using data from four data bases and from computation, we have collected ?{sub 1} data for molecules formed from second period atoms.

  11. PARC Periodical | Vol. 6, Issue 2 | Photosynthetic Antenna Research Center

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

    Vol. 6, Issue 2 December 1, 2014 PARC Periodical | Vol. 6, Issue 2 View Periodical Here

  12. PARC Periodical | Vol. 6, Issue 3 | Photosynthetic Antenna Research Center

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

    Vol. 6, Issue 3 February 9, 2015 PARC Periodical | Vol. 6, Issue 3 View Periodical Here

  13. Variable-Period Undulators For Synchrotron Radiation

    DOE Patents [OSTI]

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

    2005-02-22

    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.

  14. Ultra-short period binaries from the Catalina Surveys

    SciTech Connect (OSTI)

    Drake, A. J.; Djorgovski, S. G.; Graham, M. J.; Mahabal, A. A.; Donalek, C.; Williams, R.; García-Álvarez, D.; Catelan, M.; Torrealba, G.; Prieto, J. L.; Abraham, S.; Larson, S.; Christensen, E.

    2014-08-01

    We investigate the properties of 367 ultra-short period binary candidates selected from 31,000 sources recently identified from Catalina Surveys data. Based on light curve morphology, along with WISE, Sloan Digital Sky Survey, and GALEX multi-color photometry, we identify two distinct groups of binaries with periods below the 0.22 day contact binary minimum. In contrast to most recent work, we spectroscopically confirm the existence of M dwarf+M dwarf contact binary systems. By measuring the radial velocity variations for five of the shortest-period systems, we find examples of rare cool white dwarf (WD)+M dwarf binaries. Only a few such systems are currently known. Unlike warmer WD systems, their UV flux and optical colors and spectra are dominated by the M-dwarf companion. We contrast our discoveries with previous photometrically selected ultra-short period contact binary candidates and highlight the ongoing need for confirmation using spectra and associated radial velocity measurements. Overall, our analysis increases the number of ultra-short period contact binary candidates by more than an order of magnitude.

  15. Mo Year Report Period: EIA ID NUMBER:

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

    Mo Year Report Period: EIA ID NUMBER: http:www.eia.govsurveyformeia14instructions.pdf Mailing Address: Secure File Transfer option available at: (e.g., PO Box, RR) https:...

  16. Total Estimated Contract Cost: Performance Period

    Office of Environmental Management (EM)

    FY2012 Fee Information Minimum Fee Maximum Fee September 2015 Contract Number: Cost Plus Incentive Fee Contractor: 3,264,909,094 Contract Period: EM Contractor Fee s Idaho...

  17. Long-period solar-terrestrial variability

    SciTech Connect (OSTI)

    Sonett, C.P. )

    1991-01-01

    Studies aimed at extending the record of solar-terrestrial variability to longer periods are discussed in a critical review of US research from the period 1987--1990. Sections are devoted to the sunspot index, radioactive carbon studies, a potential climate connection between radiocarbon changes and the solar irradiance cycle, Be-10 studies, geological laminae, solar neutrino counts, and the construction of data sets. Also included is a selective bibliography. 66 refs.

  18. Scheduled Maintenance Periods | Argonne National Laboratory

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

    Scheduled Maintenance Periods The CNM holds three maintenance periods per year. During these times certain CNM facilities may not be available for user activities. The Sector 26 beamline will not be available, the High-Performance Computing Cluster and nanofabrication facilities often are not available, and other facilities may undergo maintenance for only one or two days. Please contact your CNM Scientific Contact prior to arrival and plan your work visits and schedules accordingly. To better

  19. THE CATALINA SURVEYS PERIODIC VARIABLE STAR CATALOG

    SciTech Connect (OSTI)

    Drake, A. J.; Graham, M. J.; Djorgovski, S. G.; Mahabal, A. A.; Donalek, C.; Williams, R.; Catelan, M.; Torrealba, G.; García-Álvarez, D.; Prieto, J. L.; Beshore, E.; Larson, S.; Christen sen, E.; Boattini, A.; Gibbs, A.; Hill, R.; Kowalski, R.; Johnson, J.; Belokurov, V.; Koposov, S. E.; and others

    2014-07-01

    We present ∼47,000 periodic variables found during the analysis of 5.4 million variable star candidates within a 20,000 deg{sup 2} region covered by the Catalina Surveys Data Release-1 (CSDR1). Combining these variables with type ab RR Lyrae from our previous work, we produce an online catalog containing periods, amplitudes, and classifications for ∼61,000 periodic variables. By cross-matching these variables with those from prior surveys, we find that >90% of the ∼8000 known periodic variables in the survey region are recovered. For these sources, we find excellent agreement between our catalog and prior values of luminosity, period, and amplitude as well as classification. We investigate the rate of confusion between objects classified as contact binaries and type c RR Lyrae (RRc's) based on periods, colors, amplitudes, metallicities, radial velocities, and surface gravities. We find that no more than a few percent of the variables in these classes are misidentified. By deriving distances for this clean sample of ∼5500 RRc's, we trace the path of the Sagittarius tidal streams within the Galactic halo. Selecting 146 outer-halo RRc's with SDSS radial velocities, we confirm the presence of a coherent halo structure that is inconsistent with current N-body simulations of the Sagittarius tidal stream. We also find numerous long-period variables that are very likely associated within the Sagittarius tidal stream system. Based on the examination of 31,000 contact binary light curves we find evidence for two subgroups exhibiting irregular light curves. One subgroup presents significant variations in mean brightness that are likely due to chromospheric activity. The other subgroup shows stable modulations over more than a thousand days and thereby provides evidence that the O'Connell effect is not due to stellar spots.

  20. SouthCarolinaSaves Green Community Loan Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Projects are eligible to receive between $500,000 and $5,000,000 of low cost financing and must have a payback period of 15 years.

  1. Clean Cities Launches Improved Tool to Help Fleets Evaluate CNG Investments

    Broader source: Energy.gov [DOE]

    The popular VICE Model is newly updated to allow fleets greater flexibility in determining payback periods for natural gas vehicles and fueling infrastructure.

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    and design costs associated with new buildings meeting this standard, the goal of Gold can be reduced to Silver for projects where the payback period for earning Gold......

  3. Periodic subsystem density-functional theory

    SciTech Connect (OSTI)

    Genova, Alessandro; Pavanello, Michele; Ceresoli, Davide

    2014-11-07

    By partitioning the electron density into subsystem contributions, the Frozen Density Embedding (FDE) formulation of subsystem Density Functional Theory (DFT) has recently emerged as a powerful tool for reducing the computational scaling of Kohn–Sham DFT. To date, however, FDE has been employed to molecular systems only. Periodic systems, such as metals, semiconductors, and other crystalline solids have been outside the applicability of FDE, mostly because of the lack of a periodic FDE implementation. To fill this gap, in this work we aim at extending FDE to treat subsystems of molecular and periodic character. This goal is achieved by a dual approach. On one side, the development of a theoretical framework for periodic subsystem DFT. On the other, the realization of the method into a parallel computer code. We find that periodic FDE is capable of reproducing total electron densities and (to a lesser extent) also interaction energies of molecular systems weakly interacting with metallic surfaces. In the pilot calculations considered, we find that FDE fails in those cases where there is appreciable density overlap between the subsystems. Conversely, we find FDE to be in semiquantitative agreement with Kohn–Sham DFT when the inter-subsystem density overlap is low. We also conclude that to make FDE a suitable method for describing molecular adsorption at surfaces, kinetic energy density functionals that go beyond the GGA level must be employed.

  4. Magnetomechanically induced long period fiber gratings

    SciTech Connect (OSTI)

    Causado-Buelvas, Jesus D.; Gomez-Cardona, Nelson D.; Torres, Pedro

    2008-04-15

    In this work, we report a simple, flexible method to create long period fiber gratings mechanically by controlling the repulsion/attraction force between two magnets that pressing a plate with a periodic array of small glass cylinders to a short length of optical fiber. Via the photoelastic effect, the pressure points induce the required periodic refractive index modulation to create the LPFG. We found that the induced device exhibits spectral characteristics similar to those of other types of LPFG. As the optical properties of LPFGs are directly related to the nature of the applied perturbations, we show, to our knowledge for the frrst time, how is the evolution of birefringence effects in mechanically induced LPFGs.

  5. Off-site Intensive Operational Period

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

    2 ARM Participating in Off-site Intensive Operational Period The ARM Program is playing a role in the Cirrus Regional Study of Tropical Anvils and Cirrus Layers-Florida Area Cirrus Experiment (CRYSTAL-FACE) intensive operational period (IOP), under way through July in South Florida. The objective of CRYSTAL-FACE is to investigate the physical properties and formation processes of tropical cirrus clouds. The ARM Program has deployed a suite of ground-based instruments in Florida for CRYSTAL-FACE

  6. Increasing FCC regenerator catalyst level

    SciTech Connect (OSTI)

    Wong, R.F. )

    1993-11-01

    A Peruvian FCC unit's operations were improved by increasing the regenerator's catalyst level. This increase resulted in lower stack losses, an improved temperature profile, increased catalyst activity and a lower catalyst consumption rate. A more stable operation saved this Peruvian refiner over $131,000 per year in catalyst alone. These concepts and data may be suitable for your FCC unit as well.

  7. Contract Periods of Performance Exceeding 5 Years

    Office of Energy Efficiency and Renewable Energy (EERE)

    Acquisition Letter 2010-5 has been revised to update references, make minor editorial changes, and clarify that the Director, Field Assistance and Oversight Division is the approval authority within Department of Energy for acquisition plans that contemplate a period of performance greater than 5 years.

  8. Quantum transport calculations using periodic boundaryconditions

    SciTech Connect (OSTI)

    Wang, Lin-Wang

    2004-06-15

    An efficient new method is presented to calculate the quantum transports using periodic boundary conditions. This method allows the use of conventional ground state ab initio programs without big changes. The computational effort is only a few times of a normal groundstate calculations, thus is makes accurate quantum transport calculations for large systems possible.

  9. Performance Period Total Fee Paid FY2008

    Office of Environmental Management (EM)

    1,339,286 FY 2012 38,126 FY 2013 42,265 Cumulative Fee Paid 1,766,600 42,265 Cost Plus Incentive FeeCost Plus Fixed Fee 36,602,425 Contract Period: September 2007 -...

  10. SEMIREGULAR VARIABLES WITH PERIODS LYING BETWEEN THE PERIOD-LUMINOSITY SEQUENCES C', C, AND D

    SciTech Connect (OSTI)

    Soszynski, I.; Wood, P. R. E-mail: wood@mso.anu.edu.au

    2013-02-15

    We analyze the distribution of semiregular variables and Mira stars in the period-luminosity plane. Our sample consists of 6169 oxygen-rich long-period variables in the Large Magellanic Cloud included in the OGLE-III Catalog of Variable Stars. There are many stars with periods that lie between the well-known sequences C and C'. Most of these stars are multi-periodic and the period ratios suggest that these stars oscillate in the same mode as the sequence C stars. Models suggest that this mode is the fundamental radial pulsation mode. The stars with primary periods between sequences C and C' preferentially lie on an additional sequence (named F), and a large fraction of these stars also have long secondary periods (LSPs) that lie between sequences C and D. There are also a small number of stars with primary periods lying between sequences C and D. The origin of this long-period variability is unknown, as is the cause of sequence D variability. In addition, the origin of sequence F is unknown but we speculate that sequence F variability may be excited by the same phenomenon that causes the LSPs.

  11. MedImmune Improves Energy Performance 8.5% to Achieve Quick Payback

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

    Case Study July 2016 Learn more at energy.gov/betterbuildings/superior-energy-performance 2     Learn more at energy.gov/betterbuildings/superior-energy-performance 3 Learn more at energy.gov/betterbuildings/superior-energy-performance 4 Learn more at energy.gov/betterbuildings/superior-energy-performance 5       Learn more at energy.gov/betterbuildings/superior-energy-performance 6 Monitoring and Metering Equipment $6,000 4% Energy Management Software $11,000 8%

  12. Requesting an Increase in Allocation

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

    Home For Users Accounts & Allocations Allocations Request More Time Requesting an Increase in Allocation If your project runs out of MPP time the project PI or its...

  13. Periodically distributed objects with quasicrystalline diffraction pattern

    SciTech Connect (OSTI)

    Wolny, Janusz Strzalka, Radoslaw; Kuczera, Pawel

    2015-03-30

    It is possible to construct fully periodically distributed objects with a diffraction pattern identical to the one obtained for quasicrystals. These objects are probability distributions of distances obtained in the statistical approach to aperiodic structures distributed periodically. The diffraction patterns have been derived by using a two-mode Fourier transform—a very powerful method not used in classical crystallography. It is shown that if scaling is present in the structure, this two-mode Fourier transform can be reduced to a regular Fourier transform with appropriately rescaled scattering vectors and added phases. Detailed case studies for model sets 1D Fibonacci chain and 2D Penrose tiling are discussed. Finally, it is shown that crystalline, quasicrystalline, and approximant structures can be treated in the same way.

  14. DOE'S geothermal division: A period of transition

    SciTech Connect (OSTI)

    Jelacic, Allan J.; Reed, Marshall

    1996-01-24

    The transition that the Department of Energy's geothemal research program is undergoing is discussed. This transitional period began last year and will continue at least through final implementation of the Department's reorganization and downsizing. Current and recently completed R&D programs are reviewed. New initiatives are outlined. The foci and direction of the Division's activities of particular interest to the geothermal research community are addressed.

  15. Pulsation modes of long-period variables in the period-luminosity plane

    SciTech Connect (OSTI)

    Soszyński, I.; Udalski, A.; Wood, P. R. E-mail: udalski@astrouw.edu.pl

    2013-12-20

    We present a phenomenological analysis of long-period variables (LPVs) in the Large Magellanic Cloud with the aim of detecting pulsation modes associated with different period-luminosity (PL) relations. Among brighter LPVs, we discover a group of triple-mode semi-regular variables with the fundamental, first-overtone, and second-overtone modes simultaneously excited, which fall on PL sequences C, C', and B, respectively. The mode identification in the fainter red giants is more complicated. We demonstrate that the fundamental-mode pulsators partly overlap with the first-overtone modes. We show a possible range of fundamental mode and first overtone periods in the PL diagram.

  16. The transition mechanism from a symmetric single period discharge to a period-doubling discharge in atmospheric helium dielectric-barrier discharge

    SciTech Connect (OSTI)

    Zhang, Dingzong; Wang, Yanhui; Wang, Dezhen [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)] [School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 (China)

    2013-06-15

    Period-doubling and chaos phenomenon have been frequently observed in atmospheric-pressure dielectric-barrier discharges. However, how a normal single period discharge bifurcates into period-doubling state is still unclear. In this paper, by changing the driving frequency, we study numerically the transition mechanisms from a normal single period discharge to a period-doubling state using a one-dimensional self-consistent fluid model. The results show that before a discharge bifurcates into a period-doubling state, it first deviates from its normal operation and transforms into an asymmetric single period discharge mode. Then the weaker discharge in this asymmetric discharge will be enhanced gradually with increasing of the frequency until it makes the subsequent discharge weaken and results in the discharge entering a period-doubling state. In the whole transition process, the spatial distribution of the charged particle density and the electric field plays a definitive role. The conclusions are further confirmed by changing the gap width and the amplitude of the applied voltage.

  17. Down-hole periodic seismic generator

    DOE Patents [OSTI]

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

    1982-10-28

    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.

  18. Property:Building/EndPeriod | Open Energy Information

    Open Energy Info (EERE)

    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 "BuildingEndPeriod" Showing 25 pages...

  19. Negative Effective Gravity in Water Waves by Periodic Resonator...

    Office of Scientific and Technical Information (OSTI)

    Negative Effective Gravity in Water Waves by Periodic Resonator Arrays Prev Next Title: Negative Effective Gravity in Water Waves by Periodic Resonator Arrays Authors: Hu,...

  20. Periodic Trends in Highly Dispersed Groups IV and V Supported...

    Office of Scientific and Technical Information (OSTI)

    Periodic Trends in Highly Dispersed Groups IV and V Supported Metal Oxide Catalysts for ... Title: Periodic Trends in Highly Dispersed Groups IV and V Supported Metal Oxide Catalysts ...

  1. EIS-0374: Notice of Extension of Comment Period | Department...

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

    of Comment Period EIS-0374: Notice of Extension of Comment Period Klondike IIIBiglow Canyon Wind Integration Project This notice extends the close of comment for scoping from the...

  2. Nanoscale Periodic Modulations on Sodium Chloride Induced by...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Nanoscale Periodic Modulations on Sodium Chloride Induced by Surface Charges Citation Details In-Document Search Title: Nanoscale Periodic Modulations on Sodium ...

  3. High Pressure Fuel Storage Cylinders Periodic Inspection and...

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

    Fuel Storage Cylinders Periodic Inspection and End of Life Issues High Pressure Fuel Storage Cylinders Periodic Inspection and End of Life Issues These slides were presented at the ...

  4. Gasoline prices increase (short version)

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

    gasoline prices increase (short version) The U.S. average retail price for regular gasoline rose to $3.69 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  5. Logic elements for reactor period meter

    DOE Patents [OSTI]

    McDowell, William P.; Bobis, James P.

    1976-01-01

    Logic elements are provided for a reactor period meter trip circuit. For one element, first and second inputs are applied to first and second chopper comparators, respectively. The output of each comparator is O if the input applied to it is greater than or equal to a trip level associated with each input and each output is a square wave of frequency f if the input applied to it is less than the associated trip level. The outputs of the comparators are algebraically summed and applied to a bandpass filter tuned to f. For another element, the output of each comparator is applied to a bandpass filter which is tuned to f to give a sine wave of frequency f. The outputs of the filters are multiplied by an analog multiplier whose output is 0 if either input is 0 and a sine wave of frequency 2f if both inputs are a frequency f.

  6. Residential heating oil prices increase

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

    heating oil prices increase The average retail price for home heating oil rose 5.4 cents from a week ago to $4.04 per gallon. That's up 4.9 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to 4.02 per gallon, up 5.6 cents from last week, and up 8

  7. Residential heating oil prices increase

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

    3, 2014 Residential heating oil prices increase The average retail price for home heating oil rose 4.4 cents from a week ago to $4.06 per gallon. That's up 4.1 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to 4.03 per gallon, up 2.5 cents from last week, and up 6

  8. Residential heating oil prices increase

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

    heating oil prices increase The average retail price for home heating oil rose 12 cents from a week ago to $4.18 per gallon. That's up 13 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to 4.13 per gallon, up 9.8 cents from last week, and up 12.9 cents from a

  9. Residential heating oil prices increase

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

    heating oil prices increase The average retail price for home heating oil rose 3.9 cents last week to $3.96 per gallon. That's down 2.6 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. The price for heating oil in the New England region averaged 3.92 per gallon, up 5.2 cents from last week, and 1.7

  10. Residential heating oil prices increase

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

    heating oil prices increase The average retail price for home heating oil rose 2.9 cents from a week ago to $3.98 per gallon. That's up 6-tenths of a penny from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to 3.96 per gallon, up 4.1 cents from last week, and up 4.8

  11. PARC Periodical | Volume 6, Issue 6 | Photosynthetic Antenna Research

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

    Center 6, Issue 6 August 20, 2015 PARC Periodical | Volume 6, Issue 6

  12. PARC Periodical | Volume 7, Issue 1 | Photosynthetic Antenna Research

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

    Center 7, Issue 1 October 12, 2015 PARC Periodical | Volume 7, Issue 1

  13. PARC Periodical | Volume 7, Issue 2 | Photosynthetic Antenna Research

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

    Center 2 December 7, 2015 PARC Periodical | Volume 7, Issue 2 VIEW ARTICLE HERE

  14. PARC Periodical | Volume 7, Issue 3 | Photosynthetic Antenna Research

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

    Center 3 February 16, 2016 PARC Periodical | Volume 7, Issue 3 VIEW ARTICLE HERE

  15. New Water Booster Pump System Reduces Energy Consumption by 80 Percent and Increases Reliability

    Office of Energy Efficiency and Renewable Energy (EERE)

    This case study outlines how General Motors (GM) developed a highly efficient pumping system for their Pontiac Operations Complex in Pontiac, Michigan. In short, GM was able to replace five original 60- to 100-hp pumps with three 15-hp pumps whose speed could be adjusted to meet plant requirements. As a result, the company reduced pumping system energy consumption by 80 percent (225,100 kWh per year), saving an annual $11,255 in pumping costs. With a capital investment of $44,966 in the energy efficiency portion of their new system, GM projected a simple payback of 4 years.

  16. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.91 a gallon on Monday. That's up 7-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.12 a gallon, up 4-tenths of a penny from a week ago. Prices were lowest in the Gulf Coast states at 3.80 a gallon, up 1.3 cents.

  17. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. retail price for on-highway diesel fuel rose to its highest average since September at $3.95 a gallon. That's up 4.7 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.31 a gallon, up 13.4 cents from a week ago and marking the highest average this region has seen since last February. Prices were lowest in the Gulf Coast states at 3.78 a gallon,

  18. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.98 a gallon. That's up 2.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.37 a gallon, up 6.4 cents from a week ago and marking the highest average this region has seen since August 2008. Prices were lowest in the Gulf Coast states at 3.79 a gallon, up 1.3 cents.

  19. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.89 a gallon on Monday. That's up 2.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. For the first time this year, the West Coast surpassed New England for the highest regional diesel prices at 4.01 a gallon, up 3.9 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.78 a gallon, up 3.6 cents

  20. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.87 a gallon on Monday. That's up 3.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.01 a gallon, up 4 cents from a week ago, followed by the West Coast region at 4.00 a gallon, up 4.6 cents. Prices were lowest in the Gulf Coast region and Lower Atlantic States at 3.80 a gallon.

  1. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.90 a gallon on Monday. That's up 3.6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.05 a gallon, up 4.2 cents from a week ago, followed closely by the West Coast region at 4.04 a gallon, up 4.4 cents. Prices were lowest in the Gulf Coast region at 3.84 a gallon, up 4.3 cents.

  2. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.92 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Regionally, diesel prices were highest in New England at 4.06 a gallon, up 1.4 cents from a week ago, followed closely by the West Coast states at 4.05 a gallon, up 1.1 cents. Prices were lowest in the Gulf Coast region at 3.85 a gallon, up 4-tenths of a

  3. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.98 a gallon on Labor Day Monday. That's up 6.8 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 4.13 a gallon, up 5.6 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.90 a gallon, up 6.8 cents.

  4. Diesel prices continue to increase

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

    Diesel prices continue to increase The U.S. average retail price for on-highway diesel fuel rose to $3.88 a gallon on Monday. That's up 3.9 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the New England region at 4.04 a gallon, up 3.7 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.78 a gallon, up 2.7cents. This is Marlana Anderson, with EIA, in Washington. For more information, contact

  5. Diesel prices slightly increase nationally

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

    Diesel prices slightly increase nationally The U.S. average retail price for on-highway diesel fuel rose slightly to $3.90 a gallon on Monday. That's up 4-tenths of a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 4.06 a gallon, up 1.2 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.82 a gallon, down 2-tenths of a penny.

  6. RANGE INCREASER FOR PNEUMATIC GAUGES

    DOE Patents [OSTI]

    Fowler, A.H.; Seaborn, G.B. Jr.

    1960-09-27

    An improved pneumatic gage is offered in which the linear range has been increased without excessive air consumption. This has been accomplished by providing an expansible antechamber connected to the nozzle of the gage so that the position of the nozzle with respect to the workpiece is varied automatically by variation in pressure within the antechamber. This arrangement ensures that the nozzle-to-workpiece clearance is maintained within certain limits, thus obtaining a linear relation of air flow to nozzle-to-workpiece clearance over a wider range.

  7. Residential heating oil price increases

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

    heating oil price increases The average retail price for home heating oil rose 11.2 cents from a week ago to $2.91 per gallon. That's down $1.33 from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to $2.87 per gallon, up 9.8 cents from last week, and down $1.29 from a year ago. This is Marcela Rourk with EIA, in Washington.

  8. Residential heating oil price increases

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

    9, 2015 Residential heating oil price increases The average retail price for home heating oil rose 11.7 cents from a week ago to $3.03 per gallon. That's down $1.20 from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to $2.99 per gallon, up 12 cents from last week, and down $1.16 from a year ago. This is Marcela Rourk

  9. Residential heating oil price increases

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

    5, 2015 Residential heating oil price increases The average retail price for home heating oil rose 14.7 cents from a week ago to $3.19 per gallon. That's down $1.06 from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to $3.15 per gallon, up 15.9 cents from last week, and down $1.00 from a year ago. This is Marcela Rourk

  10. Residential heating oil price increases

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

    heating oil price increases The average retail price for home heating oil rose 10.3 cents from a week ago to $3.29 per gallon. That's down 93.7 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to $3.26 per gallon, up 10.4 cents from last week, and down 89.3 cents from a year ago. This is Marcela Rourk

  11. Residential heating oil prices increase

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

    5, 2014 Residential heating oil prices increase The average retail price for home heating oil rose 6.5 cents from a week ago to $4.24 per gallon. That's up 14.9 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. Heating oil prices in the New England region rose to 4.17 per gallon, up 4.1 cents from last week, and up 13.4 cents from a year ago. This is Amerine Woodyard, with EIA, in Washington. For more information, contact Marcela

  12. Residential heating oil prices increase

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

    4, 2013 Residential heating oil prices increase The average retail price for home heating oil rose 2.9 cents from last week to $3.92 per gallon. That's down 11 cents from a year ago, based on the residential heating fuel survey by the U.S. Energy Information Administration. The price for heating oil in the New England region averaged 3.87 per gallon, up 2.5 cents from last week, but down 7.1 cents from a year earlier. This is Marlana Anderson

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

    Open Energy Info (EERE)

    Property Edit with form History Property:Wave Period Range(s) Jump to: navigation, search Property Name Wave Period Range(s) Property Type String Pages using the property "Wave...

  14. Periods of Congestion in Quark Cafe During Lunch Service: June...

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

    Periods of Congestion in Quark Cafe During Lunch Service: June 15-17 Periods of Congestion in Quark Cafe During Lunch Service: June 15-17 Quark Cafe may experience intermittent ...

  15. Property:Building/StartPeriod | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search This is a property of type Date. Start of the period (first day o the month) Pages using the property "BuildingStartPeriod" Showing 25 pages using this...

  16. EIS-0431: Extension of public comment period; Notice of public...

    Energy Savers [EERE]

    Notice of public hearing (Correction) Hydrogen Energy California's Integrated ... Period and Public Hearing for the Hydrogen Energy California's Integrated ...

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

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

    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

  18. PARC Periodical | Volume 6, Issue 5 | Photosynthetic Antenna Research

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

    Center Volume 6, Issue 5 June 3, 2015 PARC Periodical | Volume 6, Issue 5 VIEW ARTICLE HERE

  19. Recommendation 186: Option Periods in Prime Contract Language

    Broader source: Energy.gov [DOE]

    The inclusion of option periods in the language of all future DOE Request for Proposals for prime contracts when appropriate.

  20. PARC Periodical | Volume 7, Issue 4 | Photosynthetic Antenna Research

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

    Center PARC Periodical | Volume 7, Issue 4 March 1, 2016 PARC Periodical | Volume 7, Issue 4 VIEW ARTICLE HERE http://us6.campaign-archive1.com/?u=8d1be2560b66e88d2fd6e4351&id=53703d9619&e=7d... News/Media PARC Periodical

  1. THEORETICAL CEPHEID PERIOD-LUMINOSITY AND PERIOD-COLOR RELATIONS IN SPITZER IRAC BANDS

    SciTech Connect (OSTI)

    Ngeow, Chow-Choong; Marconi, Marcella; Musella, Ilaria; Cignoni, Michele; Kanbur, Shashsi M.

    2012-02-01

    In this paper, the synthetic period-luminosity (P-L) relations in Spitzer's IRAC bands, based on a series of theoretical pulsation models with varying metal and helium abundance, were investigated. Selected sets of these synthetic P-L relations were compared to the empirical IRAC band P-L relations recently determined from Galactic and Magellanic Clouds Cepheids. For the Galactic case, synthetic P-L relations from model sets with (Y = 0.26, Z = 0.01), (Y = 0.26, Z = 0.02), and (Y = 0.28, Z = 0.02) agree with the empirical Galactic P-L relations derived from the Hubble Space Telescope parallaxes. For Magellanic Cloud Cepheids, the synthetic P-L relations from model sets with (Y = 0.25, Z = 0.008) agree with both of the empirical Large Magellanic Cloud (LMC) and Small Magellanic Cloud P-L relations. Analysis of the synthetic P-L relations from all model sets suggested that the IRAC band P-L relations may not be independent of metallicity, as the P-L slopes and intercepts could be affected by the metallicity and/or helium abundance. We also derive the synthetic period-color (P-C) relations in the IRAC bands. Non-vanishing synthetic P-C relations were found for certain combinations of IRAC band filters and metallicity. However, the synthetic P-C relations disagreed with the [3.6]-[8.0] P-C relation recently found for the Galactic Cepheids. The synthetic [3.6]-[4.5] P-C slope from the (Y = 0.25, Z = 0.008) model set, on the other hand, is in excellent agreement to the empirical LMC P-C counterpart, if a period range 1.0 < log (P) < 1.8 is adopted.

  2. Physics Division progress report for period ending September 30, 1984

    SciTech Connect (OSTI)

    Livingston, A.B. (ed.)

    1985-01-01

    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.

  3. Periodic local MP2 method employing orbital specific virtuals

    SciTech Connect (OSTI)

    Usvyat, Denis Schütz, Martin; Maschio, Lorenzo

    2015-09-14

    We introduce orbital specific virtuals (OSVs) to represent the truncated pair-specific virtual space in periodic local Møller-Plesset perturbation theory of second order (LMP2). The OSVs are constructed by diagonalization of the LMP2 amplitude matrices which correspond to diagonal Wannier-function (WF) pairs. Only a subset of these OSVs is adopted for the subsequent OSV-LMP2 calculation, namely, those with largest contribution to the diagonal pair correlation energy and with the accumulated value of these contributions reaching a certain accuracy. The virtual space for a general (non diagonal) pair is spanned by the union of the two OSV sets related to the individual WFs of the pair. In the periodic LMP2 method, the diagonal LMP2 amplitude matrices needed for the construction of the OSVs are calculated in the basis of projected atomic orbitals (PAOs), employing very large PAO domains. It turns out that the OSVs are excellent to describe short range correlation, yet less appropriate for long range van der Waals correlation. In order to compensate for this bias towards short range correlation, we augment the virtual space spanned by the OSVs by the most diffuse PAOs of the corresponding minimal PAO domain. The Fock and overlap matrices in OSV basis are constructed in the reciprocal space. The 4-index electron repulsion integrals are calculated by local density fitting and, for distant pairs, via multipole approximation. New procedures for determining the fit-domains and the distant-pair lists, leading to higher efficiency in the 4-index integral evaluation, have been implemented. Generally, and in contrast to our previous PAO based periodic LMP2 method, the OSV-LMP2 method does not require anymore great care in the specification of the individual domains (to get a balanced description when calculating energy differences) and is in that sense a black box procedure. Discontinuities in potential energy surfaces, which may occur for PAO-based calculations if one is not

  4. Total Estimated Contract Price: Contract Option Periods: Performance

    Office of Environmental Management (EM)

    Price: Contract Option Periods: Performance Period Fee Earned Base Period "A" $0 Base Period "B" Option 1 Option 2 Option 3 Cumulative Fee $0 EM Contractor Fee June 2015 Site: Office of River Protection, Richland, WA Contract Name: Hanford 222-S Laboratory Analysis and Testing Services Contractor: Wastren Advantage, Inc Contract Number: DE-EM0003722 Contract Type: Hybrid Contract with Award Fee Fee Available $44,562,457 Base Contract Period: November 21, 2016 to September 20,

  5. Physics division. Progress report for period ending September 30, 1996

    SciTech Connect (OSTI)

    Ball, S.J.

    1997-04-01

    This report covers the research and development activities of the Physics Division for the 1995 and 1996 fiscal years, beginning October 1, 1994, and ending September 30, 1996. The activities of the Division continue to be concentrated in the areas of experimental nuclear physics, experimental atomic physics, and theoretical nuclear and atomic physics. In addition, there are smaller programs in plasma diagnostics and data compilation and evaluation. During the period of this report, there has been considerable success in bringing the Holifield Radioactive Ion Beam Facility (HRIBF) into routine operation. The budgets of the nuclear physics portion of the Division have increased each year in nearly all areas, and several new members have been added to the Division research and development staff. On August 30, 1996, the HRIBF successfully accelerated its first radioactive ion beams, {sup 69}As and {sup 70}As. Prior to this, the heart of the facility, the RIB injector system, was completed, including installation of a remote handling system for the target/ion source assembly. Target and ion source development is likely to be the technical key to success of the HRIBF. We have expanded our efforts in those development areas. Of special note is the development of highly permeable composite targets which have now been shown to allow release of difficult-to-produce radioactive ions such as {sup 17,18}F. A summary of the HRIBF work is provided in Chapter 1, along with supporting activities of the Joint Institute for Heavy Ion Research.

  6. An optimized periodic inspection program for condensers and feedwater heaters

    SciTech Connect (OSTI)

    Reinhart, E.R.; Kaminski, S.

    1996-12-31

    Tube failures in steam plant surface condensers and feedwater heaters are a significant reliability problem for the electric power industry. Tube failures can also result in an increase in replacement power costs. In addition, condenser leaks from failed tubes have potentially harmful effects on major components such as steam generators and turbines. To reduce the number of tube failures and consequent leakage, periodic maintenance programs have used the nondestructive evaluation (NDE) method of eddy-current testing (ET) to inspect the condition of the tubes from the water side. This NDE method can identify tubes that have experienced major degradation and should be plugged to prevent in-service failure. However, the use of NDE methods in plant maintenance of condensers and feedwater heaters is not standard practice and varies significantly throughout the utility industry. Variability of inspection results and difficulty in inspecting some types of tubing (monel, carbon steel) have caused many utility sites to question the value of in-service inspection of heat transfer tubing from the water side. Recognizing the above problem, advanced ET systems have been developed that use multi-frequency, remote field and digital data processing techniques to inspect a wide variety of tubing materials and produce on-site inspection reports. Recent field examination results will be presented.

  7. Periodicals collection management using a decision support system

    SciTech Connect (OSTI)

    Compton, M.L.; Moser, E.C.

    1993-12-31

    Sandia National Laboratories is a multiprogram national laboratory established in 1949. The Library currently uses DOBIS for its automated system, including the Periodicals Control function for periodical check-in. DOBIS performs processing and control functions adequately, but could not meet our reporting needs. Therefore the Library`s Periodicals Decision Team decided that they needed another ``system`` for collection management. A Periodicals Decision Support System was created using information downloaded from DOBIS and uploaded into dBASE IV. The Periodical Decision Support System functions as an information-processing system that has aided us in making collection management decisions for periodicals. It certainly allows us to do interactive ad-hoc analysis; although there are no modeling tools currently incorporated in the system. We hope that these modeling tools will come later. We have been gathering information and developing needed reports to achieve this goal.

  8. PARC Periodical | Volume 7, Issue 6 | Photosynthetic Antenna Research

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

    Center PARC Periodical | Volume 7, Issue 6 August 30, 2016 PARC Periodical | Volume 7, Issue 6 VIEW ARTICLE HERE http://us6.campaign-archive1.com/?u=8d1be2560b66e88d2fd6e4351&id=03b6c7eb11&e=41... News/Media PARC Periodical

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

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

    FERC announces the extension of the public comment periond and additional scoping meetings. The comment period has been extended from September 4, 2012 to October 29, 2012. For ...

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

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

    Transmission LLC: Public Scoping Period Reopened: Federal Register Volume 73, No. 183 - Jun. 15, 2011 EIS-0463: Notice of Intent to Prepare a Supplement to the Draft Environmental...

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

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

    States The Department of Energy and the Bureau of Land Management (BLM) (the Agencies) extended the public comment period for the Programmatic Environmental Impact Statement to...

  12. Notice of Extension of Public Comment Period for Application...

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

    Extension of Public Comment Period for Application for Proposed Project for Clean Line Plains & Eastern Transmission Line: Federal Register Notice, Volume 80, No. 116 - Jun. 17, ...

  13. Department of Energy Extends Public Comment Period | Department...

    Office of Environmental Management (EM)

    Administration Nevada Site Office is extending the public comment period for the Draft Site-Wide Environmental Impact Statement (SWEIS) for the Nevada National Security ...

  14. Extension of Comment Period on the Draft Integrated, Interagency...

    Energy Savers [EERE]

    of Comment Period on the Draft Integrated, Interagency Pre-Application (IIP) Process for Electric Transmission Projects Requiring Federal Authorizations Extension of Comment...

  15. Concept of quasi-periodic undulator - control of radiation spectrum

    SciTech Connect (OSTI)

    Sasaki, Shigemi

    1995-02-01

    A new type of undulator, the quasi-periodic undulator (QPU) is considered which generates the irrational harmonics in the radiation spectrum. This undulator consists of the arrays of magnet blocks aligned in a quasi-periodic order, and consequentially lead to a quasi-periodic motion of electron. A combination of the QPU and a conventional crystal/grating monochromator provides pure monochromatic photon beam for synchrotron radiation users because the irrational harmonics do not be diffracted in the same direction by a monochromator. The radiation power and width of each radiation peak emitted from this undulator are expected to be comparable with those of the conventional periodic undulator.

  16. ARM Intensive Operational Period Scheduled to Validate New NASA...

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

    ARM Intensive Operational Period Scheduled to Validate New NASA Satellite Beginning in ... On May 4, the National Aeronautics and Space Administration (NASA) launched Aqua, the ...

  17. EIS-0391: Extension of the Public Comment Period | Department...

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

    Tank Closure and Waste Management for the Hanford Site, Richland, WA Extension of the Public Comment Period for the Draft Tank Closure and Waste Management Environmental Impact...

  18. "Period","Annual Production Capacity",,"Monthly B100 Production...

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

    Biodiesel production capacity and production" "million gallons" "Period","Annual ... is the industry designation for pure biodiesel; a biodiesel blend contains both pure ...

  19. CEQ Extends Comment Period on Revised Draft Guidance on Consideration...

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

    of Greenhouse Gas Emissions and the Effects of Climate Change in NEPA Reviews CEQ Extends Comment Period on Revised Draft Guidance on Consideration of Greenhouse Gas ...

  20. Development of Advanced Combustion Technologies for Increased...

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

    Advanced Combustion Technologies for Increased Thermal Efficiency Development of Advanced Combustion Technologies for Increased Thermal Efficiency Investigation of fuel effects on ...

  1. Connecticut's Health Impact Study Rapidly Increasing Weatherization...

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

    Connecticut's Health Impact Study Rapidly Increasing Weatherization Efforts Connecticut's Health Impact Study Rapidly Increasing Weatherization Efforts June 18, 2014 - 10:49am ...

  2. Report: Natural Gas Infrastructure Implications of Increased...

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

    Report: Natural Gas Infrastructure Implications of Increased Demand from the Electric Power Sector Report: Natural Gas Infrastructure Implications of Increased Demand from the ...

  3. Quantum coherent switch utilizing commensurate nanoelectrode and charge density periodicities

    DOE Patents [OSTI]

    Harrison, Neil; Singleton, John; Migliori, Albert

    2008-08-05

    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.

  4. Period-doubling reconstructions of semiconductor partial dislocations

    SciTech Connect (OSTI)

    Park, Ji -Sang; Huang, Bing; Wei, Su -Huai; Kang, Joongoo; McMahon, William E.

    2015-09-18

    Atomic-scale understanding and control of dislocation cores is of great technological importance, because they act as recombination centers for charge carriers in optoelectronic devices. Using hybrid density-functional calculations, we present period-doubling reconstructions of a 90° partial dislocation in GaAs, for which the periodicity of like-atom dimers along the dislocation line varies from one to two, to four dimers. The electronic properties of a dislocation change drastically with each period doubling. The dimers in the single-period dislocation are able to interact, to form a dispersive one-dimensional band with deep-gap states. However, the inter-dimer interaction for the double-period dislocation becomes significantly reduced; hence, it is free of mid-gap states. The Ga core undergoes a further period-doubling transition to a quadruple-period reconstruction induced by the formation of small hole polarons. Lastly, the competition between these dislocation phases suggests a new passivation strategy via population manipulation of the detrimental single-period phase.

  5. Period-doubling reconstructions of semiconductor partial dislocations

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

    Park, Ji -Sang; Huang, Bing; Wei, Su -Huai; Kang, Joongoo; McMahon, William E.

    2015-09-18

    Atomic-scale understanding and control of dislocation cores is of great technological importance, because they act as recombination centers for charge carriers in optoelectronic devices. Using hybrid density-functional calculations, we present period-doubling reconstructions of a 90° partial dislocation in GaAs, for which the periodicity of like-atom dimers along the dislocation line varies from one to two, to four dimers. The electronic properties of a dislocation change drastically with each period doubling. The dimers in the single-period dislocation are able to interact, to form a dispersive one-dimensional band with deep-gap states. However, the inter-dimer interaction for the double-period dislocation becomes significantly reduced;more » hence, it is free of mid-gap states. The Ga core undergoes a further period-doubling transition to a quadruple-period reconstruction induced by the formation of small hole polarons. Lastly, the competition between these dislocation phases suggests a new passivation strategy via population manipulation of the detrimental single-period phase.« less

  6. Development of Seismic Isolation Systems Using Periodic Materials

    SciTech Connect (OSTI)

    Yan, Yiqun; Mo, Yi-Lung; Menq, Farn-Yuh; Stokoe, II, Kenneth H.; Perkins, Judy; Tang, Yu

    2014-12-10

    Advanced fast nuclear power plants and small modular fast reactors are composed of thin-walled structures such as pipes; as a result, they do not have sufficient inherent strength to resist seismic loads. Seismic isolation, therefore, is an effective solution for mitigating earthquake hazards for these types of structures. Base isolation, on which numerous studies have been conducted, is a well-defined structure protection system against earthquakes. In conventional isolators, such as high-damping rubber bearings, lead-rubber bearings, and friction pendulum bearings, large relative displacements occur between upper structures and foundations. Only isolation in a horizontal direction is provided; these features are not desirable for the piping systems. The concept of periodic materials, based on the theory of solid-state physics, can be applied to earthquake engineering. The periodic material is a material that possesses distinct characteristics that prevent waves with certain frequencies from being transmitted through it; therefore, this material can be used in structural foundations to block unwanted seismic waves with certain frequencies. The frequency band of periodic material that can filter out waves is called the band gap, and the structural foundation made of periodic material is referred to as the periodic foundation. The design of a nuclear power plant, therefore, can be unified around the desirable feature of a periodic foundation, while the continuous maintenance of the structure is not needed. In this research project, three different types of periodic foundations were studied: one-dimensional, two-dimensional, and three-dimensional. The basic theories of periodic foundations are introduced first to find the band gaps; then the finite element methods are used, to perform parametric analysis, and obtain attenuation zones; finally, experimental programs are conducted, and the test data are analyzed to verify the theory. This procedure shows that the

  7. MAGNETIC ROSSBY WAVES IN THE SOLAR TACHOCLINE AND RIEGER-TYPE PERIODICITIES

    SciTech Connect (OSTI)

    Zaqarashvili, Teimuraz V.; Carbonell, Marc; Oliver, Ramon; Ballester, Jose Luis E-mail: marc.carbonell@uib.e E-mail: joseluis.ballester@uib.e

    2010-02-01

    Apart from the eleven-year solar cycle, another periodicity around 155-160 days was discovered during solar cycle 21 in high-energy solar flares, and its presence in sunspot areas and strong magnetic flux has been also reported. This periodicity has an elusive and enigmatic character, since it usually appears only near the maxima of solar cycles, and seems to be related with a periodic emergence of strong magnetic flux at the solar surface. Therefore, it is probably connected with the tachocline, a thin layer located near the base of the solar convection zone, where a strong dynamo magnetic field is stored. We study the dynamics of Rossby waves in the tachocline in the presence of a toroidal magnetic field and latitudinal differential rotation. Our analysis shows that the magnetic Rossby waves are generally unstable and that the growth rates are sensitive to the magnetic field strength and to the latitudinal differential rotation parameters. Variation of the differential rotation and the magnetic field strength throughout the solar cycle enhance the growth rate of a particular harmonic in the upper part of the tachocline around the maximum of the solar cycle. This harmonic is symmetric with respect to the equator and has a period of 155-160 days. A rapid increase of the wave amplitude could give rise to a magnetic flux emergence leading to observed periodicities in solar activity indicators related to magnetic flux.

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

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

    ends on June 14, 2011. For more information see the project page at: http:energy.govnode300109. Download Document EIS-0463: Reopening of Scoping Period for the Environmental...

  9. Award Fee Evaluation Period 5 Determination Scorecard Contractor...

    Office of Environmental Management (EM)

    5 Determination Scorecard Contractor: Fluor-BWXT Portsmouth LLC Contract: DE-AC30-10CC40017 Award Fee Evaluation Period: Fiscal Year 2015 (October 1, 2014 to September 30, 2015) ...

  10. Award Fee Evaluation Period 6 Determination Scorecard Contractor...

    Office of Environmental Management (EM)

    6 Determination Scorecard Contractor: Wastren-EnergX Mission Support, LLC Contract: DE-CI0000004 Award Fee Evaluation Period: Fiscal Year 2015 (October 1, 2014 to September 30, ...

  11. Linear Scaling Electronic Structure Methods with Periodic Boundary Conditions

    SciTech Connect (OSTI)

    Gustavo E. Scuseria

    2008-02-08

    The methodological development and computational implementation of linear scaling quantum chemistry methods for the accurate calculation of electronic structure and properties of periodic systems (solids, surfaces, and polymers) and their application to chemical problems of DOE relevance.

  12. Property:Building/MeanAnnualTempCalculationPeriod | Open Energy...

    Open Energy Info (EERE)

    Property Edit with form History Property:BuildingMeanAnnualTempCalculationPeriod Jump to: navigation, search This is a property of type Number. Mean annual temperature during the...

  13. Progress report for the period October 1981-September 1982

    SciTech Connect (OSTI)

    Not Available

    1983-02-01

    The mission-related activities of the DOE New Brunswick Laboratory involving development, calibration, and evaluation of nuclear material measurement technology and providing measurement-related services for the Government during the period are described and summarized.

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

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

    Notice of extension of public comment period for reply comments. On July 27, 2010, the ... incidents.The NOI provided a September 27, 2010, deadline for comments, which was ...

  15. Extension of Comment Period on Improving Performance of Federal Permitting

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

    and Review of Infrastructure Projects: Federal Register Notice Volume 78, No. 186 - September 25, 2013 | Department of Energy 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,

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

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

    Statement | Department of Energy 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)

  17. Clean Energy Manufacturing Initiative: Increasing American Competitive...

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

    Manufacturing Initiative: Increasing American Competitiveness Through Innovation Clean ... Manufacturing Initiative (CEMI), a collaborative effort between the federal government, ...

  18. ARM - Will There be Increased Global Precipitation?

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

    Will There be Increased Global Precipitation? Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans Will There be Increased Global Precipitation? Very probable. Along with an increase in air temperature might be an increase in evaporation, which could lead to greater global precipitation. The

  19. Advancing Commercialization of Algal Biofuels through Increased...

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

    Advancing Commercialization of Algal Biofuels through Increased Biomass Productivity ... including: NAABB, Cornell's Marine Algal Biofuels Consortium, ATP3. * Participation in ...

  20. Isotope Production in Light of Increasing Demand

    SciTech Connect (OSTI)

    Patton, B.

    2004-10-05

    This presentation is a part of the panel discussion on isotope production in light of increasing demand.

  1. WASP-19b: THE SHORTEST PERIOD TRANSITING EXOPLANET YET DISCOVERED

    SciTech Connect (OSTI)

    Hebb, L.; Collier-Cameron, A.; Enoch, B.; Horne, K.; Triaud, A.H.M.J.; Gillon, M.; Queloz, D.; Mayor, M.; Pepe, F.; Segransan, D.; Lister, T.A.; Smalley, B.; Maxted, P.F.L.; Hellier, C.; Anderson, D.R.; Bentley, S.; Pollacco, D.; West, R.G.; Haswell, C.A.; Skillen, I.

    2010-01-01

    We report on the discovery of a new extremely short period transiting extrasolar planet, WASP-19b. The planet has mass M{sub pl} = 1.15 +- 0.08 M{sub J} , radius R{sub pl} = 1.31 +- 0.06 R{sub J} , and orbital period P = 0.7888399 +- 0.0000008 days. Through spectroscopic analysis, we determine the host star to be a slightly super-solar metallicity ([M/H] = 0.1 +- 0.1 dex) G-dwarf with T{sub eff} = 5500 +- 100 K. In addition, we detect periodic, sinusoidal flux variations in the light curve which are used to derive a rotation period for the star of P{sub rot} = 10.5 +- 0.2 days. The relatively short stellar rotation period suggests that either WASP-19 is somewhat young (approx 600 Myr old) or tidal interactions between the two bodies have caused the planet to spiral inward over its lifetime resulting in the spin-up of the star. Due to the detection of the rotation period, this system has the potential to place strong constraints on the stellar tidal quality factor, Q'{sub s}, if a more precise age is determined.

  2. Market overview: Increase in uranium prices continues

    SciTech Connect (OSTI)

    1996-04-01

    Spot market activity totaled just over 200,000 lbs of U308 equivalent. The restricted uranium spot market price range increased from a high last month of $14.75/lb U308 to a low this month of $15.25/lb U308. There was also an increase in the unrestricted range this month with the upper end of the range increasing by $0.50/lb U308. The lower end of the spot conversion price range increased by R0.35/kg U while the upper end of the separative work price range increased by $2.00/SWU.

  3. Nissan: Automaker improves energy performance 7.2% with a four-month payback using Superior Energy Performance

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

    Learn more at energy.gov/betterbuildings/superior-energy-performance Case Study May 2015 HARBEC-a Specialty Plastics Manufacturer-Improves Energy Performance 16.5% with SEP HARBEC, Inc. worked with the U.S. Department of Energy (DOE) Advanced Manufacturing Office to successfully implement an energy management system (EnMS) that meets all requirements of ISO 50001 1 and Superior Energy Performance® (SEP TM ). HARBEC's implementation of the EnMS at its small plastics manufacturing facility in

  4. Nissan: Automaker improves energy performance 7.2% with a four-month payback using Superior Energy Performance

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

    performance Case Study April 2016 Nissan Improves Energy Performance 24% over Six Years with SEP 1 Nissan's vehicle assembly plant in Smyrna, Tennessee, improved its energy performance by 24% over six years by participating in the U.S. Department of Energy's (DOE's) Superior Energy Performance® (SEP TM ) program. The plant first earned SEP certification at the Silver level in 2012 and was recertified to SEP at the Platinum level in 2015. Annual energy cost savings following Nissan's initial

  5. Nissan: Automaker improves energy performance 7.2% with a four-month payback using Superior Energy Performance

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

    Case Study July 2016 Learn more at energy.gov/betterbuildings/superior-energy-performance 2     Learn more at energy.gov/betterbuildings/superior-energy-performance 3 Learn more at energy.gov/betterbuildings/superior-energy-performance 4 Learn more at energy.gov/betterbuildings/superior-energy-performance 5       Learn more at energy.gov/betterbuildings/superior-energy-performance 6 Monitoring and Metering Equipment $6,000 4% Energy Management Software $11,000 8%

  6. EIS-0236-S4: Extension of Comment Period | Department of Energy

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

    Extension of Comment Period EIS-0236-S4: Extension of Comment Period Complex Transformation Extension of Comment Period for the Draft Complex Transformation Supplemental...

  7. Time-periodic solutions of the Benjamin-Ono equation

    SciTech Connect (OSTI)

    Ambrose , D.M.; Wilkening, Jon

    2008-04-01

    We present a spectrally accurate numerical method for finding non-trivial time-periodic solutions of non-linear partial differential equations. The method is based on minimizing a functional (of the initial condition and the period) that is positive unless the solution is periodic, in which case it is zero. We solve an adjoint PDE to compute the gradient of this functional with respect to the initial condition. We include additional terms in the functional to specify the free parameters, which, in the case of the Benjamin-Ono equation, are the mean, a spatial phase, a temporal phase and the real part of one of the Fourier modes at t = 0. We use our method to study global paths of non-trivial time-periodic solutions connecting stationary and traveling waves of the Benjamin-Ono equation. As a starting guess for each path, we compute periodic solutions of the linearized problem by solving an infinite dimensional eigenvalue problem in closed form. We then use our numerical method to continue these solutions beyond the realm of linear theory until another traveling wave is reached (or until the solution blows up). By experimentation with data fitting, we identify the analytical form of the solutions on the path connecting the one-hump stationary solution to the two-hump traveling wave. We then derive exact formulas for these solutions by explicitly solving the system of ODE's governing the evolution of solitons using the ansatz suggested by the numerical simulations.

  8. LONG-TERM PERIODICITY VARIATIONS OF THE SOLAR RADIUS

    SciTech Connect (OSTI)

    Qu, Z. N.; Xie, J. L.

    2013-01-01

    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.

  9. DREAM tool increases space weather predictions

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

    DREAM tool increases space weather predictions Model addresses radiation hazards of the space environment on space systems. April 13, 2012 Scientists studying Earth's radiation ...

  10. BPA proposes rate increase to bolster

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

    proposed a 9.6 percent average wholesale power rate increase to compensate for reduced revenue expectations from surplus power sales and to continue funding needed investments in...

  11. Increasing Scientific Productivity by Tracking Data

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

    than its predecessor. To effectively meet the increasing scientific demand for storage systems and services, the center's staff must first understand how data moves within the...

  12. National Weatherization Assistance Program Characterization Describing the Recovery Act Period

    SciTech Connect (OSTI)

    Tonn, Bruce Edward; Rose, Erin M.; Hawkins, Beth A.

    2015-10-01

    This report characterizes the U.S. Department of Energy s Weatherization Assistance Program (WAP) during the American Recovery and Reinvestment Act of 2009 (Recovery Act) period. This research was one component of the Recovery Act evaluation of WAP. The report presents the results of surveys administered to Grantees (i.e., state weatherization offices) and Subgrantees (i.e., local weatherization agencies). The report also documents the ramp up and ramp down of weatherization production and direct employment during the Recovery Act period and other challenges faced by the Grantees and Subgrantees during this period. Program operations during the Recovery Act (Program Year 2010) are compared to operations during the year previous to the Recovery Act (Program Year 2008).

  13. Total Estimated Contract Cost: Performance Period Total Fee Paid

    Office of Environmental Management (EM)

    Performance Period Total Fee Paid FY2008 $134,832 FY2009 $142,578 FY2010 $299,878 FY2011 $169,878 Cumulative Fee Paid $747,166 Contract Period: September 2007 - October 2012 $31,885,815 C/P/E Environmental Services, LLC DE-AM09-05SR22405/DE-AT30-07CC60011/SL14 Contractor: Contract Number: Contract Type: Cost Plus Award Fee $357,223 $597,797 $894,699 EM Contractor Fee Site: Stanford Linear Accelerator Center (SLAC) Contract Name: SLAC Environmental Remediation December 2012 $1,516,646 Fee

  14. Weatherization Assistance Program: Spurring Innovation, Increasing Home

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

    Energy Efficiency | Department of Energy Weatherization Assistance Program: Spurring Innovation, Increasing Home Energy Efficiency Weatherization Assistance Program: Spurring Innovation, Increasing Home Energy Efficiency October 31, 2013 - 5:01pm Addthis The Intermountain Weatherization Training Center in Clearfield, Utah. Weatherization Training Centers throughout the nation teach workers valuable skills needed to improve energy efficiency of homes. | Photo courtesy of Intermountain

  15. THE QUASI-BIENNIAL PERIODICITY AS A WINDOW ON THE SOLAR MAGNETIC DYNAMO CONFIGURATION

    SciTech Connect (OSTI)

    Simoniello, R.; Turck-Chieze, S.; Baldner, C.; Finsterle, W.

    2013-03-10

    Manifestations of the solar magnetic activity through periodicities of about 11 and 2 years are now clearly seen in all solar activity indices. In this paper, we add information about the mechanism driving the 2-year period by studying the time and latitudinal properties of acoustic modes that are sensitive probes of the subsurface layers. We use almost 17 years of high-quality resolved data provided by the Global Oscillation Network Group to investigate the solar cycle changes in p-mode frequencies for spherical degrees l from 0 to 120 and 1600 {mu}Hz {<=}{nu} {<=} 3500 {mu}Hz. For both periodic components of solar activity, we locate the origin of the frequency shift in the subsurface layers and find evidence that a sudden enhancement in amplitude occurs in just the last few hundred kilometers. We also show that, in both cases, the size of the shift increases toward equatorial latitudes and from minimum to maximum solar activity, but, in agreement with previous findings, the quasi-biennial periodicity (QBP) causes a weaker shift in mode frequencies and a slower enhancement than that caused by the 11-year cycle. We compare our observational findings with the features predicted by different models, that try to explain the origin of this QBP and conclude that the observed properties could result from the beating between a dipole and quadrupole magnetic configuration of the dynamo.

  16. Femtosecond laser induced periodic surface structures on multi-layer graphene

    SciTech Connect (OSTI)

    Beltaos, Angela Kova?evi?, Aleksander G.; Matkovi?, Aleksandar; Ralevi?, Uro; Savi?-evi?, Svetlana; Jovanovi?, Djordje; Jelenkovi?, Branislav M.; Gaji?, Rado

    2014-11-28

    In this work, we present an observation of laser induced periodic surface structures (LIPSS) on graphene. LIPSS on other materials have been observed for nearly 50 years, but until now, not on graphene. Our findings for LIPSS on multi-layer graphene were consistent with previous reports of LIPSS on other materials, thus classifying them as high spatial frequency LIPSS. LIPSS on multi-layer graphene were generated in an air environment by a linearly polarized femtosecond laser with excitation wavelength ? of 840?nm, pulse duration ? of ?150 fs, and a fluence F of ?4.34.4 mJ/cm{sup 2}. The observed LIPSS were perpendicular to the laser polarization and had dimensions of width w of ?3040?nm and length l of ?0.51.5??m, and spatial periods ? of ?70100?nm (??/8?/12), amongst the smallest of spatial periods reported for LIPSS on other materials. The spatial period and width of the LIPSS were shown to decrease for an increased number of laser shots. The experimental results support the leading theory behind high spatial frequency LIPSS formation, implying the involvement of surface plasmon polaritons. This work demonstrates a new way to pattern multi-layer graphene in a controllable manner, promising for a variety of emerging graphene/LIPSS applications.

  17. PARC Periodical | Volume 7, Issue 5 | Photosynthetic Antenna Research

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

    Center 5 June 1, 2016 PARC Periodical | Volume 7, Issue 5 VIEW ARTICLE HERE http://us6.campaign-archive1.com/?u=8d1be2560b66e88d2fd6e4351&id=d20f3cc561&e=7d...

  18. Ethanologenic bacteria with increased resistance to furfural

    DOE Patents [OSTI]

    Miller, Elliot Norman; Jarboe, Laura R.; Yomano, Lorraine P.; York, Sean W.; Shanmugam, Keelnatham; Ingram, Lonnie O'Neal

    2015-10-06

    The invention relates to bacterium that have increased resistance to furfural and methods of preparation. The invention also relates to methods of producing ethanol using the bacterium and corresponding kits.

  19. U.S. monthly coal production increases

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

    monthly coal production increases U.S. coal production in July totaled 88.9 million short tons, the highest level since August 2012, according to preliminary data from the U.S. ...

  20. Gasoline prices show sharp increase (short version)

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

    short version) The U.S. average retail price for regular gasoline saw its sharpest increase this year at 3.54 a gallon on Monday. That's up 18.1 cents from a week ago, based on ...

  1. Gasoline prices show sharp increase (long version)

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

    long version) The U.S. average retail price for regular gasoline saw its sharpest increase this year at 3.54 a gallon on Monday. That's up 18.1 cents from a week ago, based on the ...

  2. Connecticut's Health Impact Study Rapidly Increasing Weatherization

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

    Efforts | Department of Energy Connecticut's Health Impact Study Rapidly Increasing Weatherization Efforts Connecticut's Health Impact Study Rapidly Increasing Weatherization Efforts June 18, 2014 - 10:49am Addthis Weatherization workers are trained in the house as a system approach. The Energy Department's Weatherization Assistance Program funded technical assistance as part of Connecticut's Health Impact Assessment project. | Photo courtesy of Weatherization Assistance Program Technical

  3. Increasing Energy Security | Department of Energy

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

    Energy Security Increasing Energy Security January 20, 2012 - 4:01pm Addthis Increasing Energy Security Heather Zichal Deputy Assistant to the President for Energy and Climate Change Editor's note: This article is cross-posted from WhiteHouse.gov. There is a lot of discussion lately about domestic energy production and American energy security. For the Obama Administration, moving towards the goal of energy independence has been a clear priority since day one. When President Obama took office,

  4. Tracking multiple generation and suppression of secondary electrons on periodic triangular surface

    SciTech Connect (OSTI)

    Li, S.; Wang, J. G.; Zhu, M.; Peng, J. C.; Xie, J. L.; Wu, X. L.; Guo, L. T.; Chang, C.; Xiong, Z. F.; Department of Engineering Physics, Tsinghua University, Beijing 10084

    2013-12-15

    To research the dynamic course of multipactor suppression on the periodically patterned surface, tens of electron collision processes are tracked by numerical calculation. The influences of microwave frequency, amplitude of RF electric field, slope angle, the local field enhancement, and the tilted incident electric field on the multipactor suppression are studied by tracking multi-generation electrons' trajectories, hopping and flight time, collision energy, and secondary emission yield. Meanwhile, the dynamic processes of secondary electrons on the periodic surface are analyzed by particle-in-cell (PIC) simulation. The PIC results are consistent with the analytical results in which the electrons fly reciprocatingly between the slopes and impact on the slopes; the methods of increasing the slope angle, enlarging the RF field, and lowering the frequency in a certain range are helpful to enhance the multipactor suppression steadily and persistently.

  5. Fort Collins- Green Building Requirement for City-Owned Buildings

    Office of Energy Efficiency and Renewable Energy (EERE)

    To control the construction and design costs associated with new buildings meeting this standard, the goal of Gold can be reduced to Silver for projects where the payback period for earning Gold...

  6. Tax Credits, Rebates & Savings | Department of Energy

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

    SouthCarolinaSaves Green Community Loan Program Projects are eligible to receive between 500,000 and 5,000,000 of low cost financing and must have a payback period of 15 years....

  7. Smart Solar Marketing Strategies

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

    ... e Cost. Consumers report high up-front and out-of-pocket costs and long payback periods deter them from installing solar ... While state solar pro- grams do not produce solar panels, ...

  8. Demonstration Assessment of Light-Emitting Diode Parking Structure...

    Office of Scientific and Technical Information (OSTI)

    Because of the relatively high cost of the LED luminaires at their time of purchase for this project (2010), the simple payback periods were 6.5 years and 4.9 years for retrofit ...

  9. Demonstration Assessment of Light-Emitting Diode Parking Structure...

    Office of Scientific and Technical Information (OSTI)

    LED luminaires at their time of purchase for this project (2010), the simple payback periods were 6.5 years and 4.9 years for retrofit and new construction scenarios, respectively. ...

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

    Broader source: Energy.gov [DOE]

    Energy conservation projects include projects with investments for which the first year energy savings yields a simple payback period of greater than three years. Projects with a total cost of less...

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

    Broader source: Energy.gov [DOE]

    Energy conservation projects include projects with investments for which the first year energy savings yields a simple payback period of greater than three years. Projects with a total cost of less...

  12. Quasi-periodic quantum dot arrays produced by electrochemical synthesis

    SciTech Connect (OSTI)

    Bandyopadhyay, S.; Miller, A.E.; Yue, D.F.; Banerjee, G.; Ricker, R.E.; Jones, S.; Eastman, J.A.; Baugher, E.; Chandrasekhar, M.

    1994-06-01

    We discuss a ``gentle`` electrochemical technique for fabricating quasi-periodic quantum dot arrays. The technique exploits a self-organizing phenomenon to produce quasi-periodic arrangement of dots and provides excellent control over dot size and interdot spacing. Unlike conventional nanolithography, it does not cause radiation damage to the structures during exposure to pattern delineating beams (e-beam, ion-beam or x-ray). Moreover, it does not require harsh processing steps like reactive ion etching, offers a minimum feature size of {approximately}40 {angstrom}, allows the fabrication of structures on nonplanar surfaces (e.g. spherical or cylindrical substrates), is amenable to mass production (millions of wafers can be processed simultaneously) and is potentially orders of magnitude cheaper than conventional nanofabrication. In this paper, we describe our initial results and show the promise of this technique for low-cost and high-yield nanosynthesis.

  13. Enforcement Policy Statement: Compliance Period for Regional Standards

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

    Compliance Period for Regional Standards Applicable to Central Air Conditioners April 24, 2014 On June 27, 2011, the U.S. Department of Energy (DOE) published in the Federal Register a direct final rule (DFR) under the Energy Policy and Conservation Act (EPCA), 42 U.S.C. §§ 6291-6309, which set forth amended energy conservation standards for residential furnaces, central air conditioners, and heat pumps, including regional standards for different product types in indicated States. 76 FR 37408.

  14. Porous radiant burners having increased radiant output

    DOE Patents [OSTI]

    Tong, Timothy W.; Sathe, Sanjeev B.; Peck, Robert E.

    1990-01-01

    Means and methods for enhancing the output of radiant energy from a porous radiant burner by minimizing the scattering and increasing the adsorption, and thus emission of such energy by the use of randomly dispersed ceramic fibers of sub-micron diameter in the fabrication of ceramic fiber matrix burners and for use therein.

  15. Gasoline price shows small increase (Short version)

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

    shows small increase (Short version) The U.S. average retail price for regular gasoline rose to $3.32 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  16. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.44 a gallon on Monday. That's up 6.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  17. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.48 a gallon on Monday. That's up 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  18. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.51 a gallon on Monday. That's up 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  19. Gasoline prices continue to increase (short version)

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

    Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.55 a gallon on Monday. That's up 3½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  20. Gasoline prices continue to increase (short version)

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

    4, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.65 a gallon on Monday. That's up 5½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  1. Gasoline prices continue to increase (short version)

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

    1, 2014 Gasoline prices continue to increase (short version) The U.S. average retail price for regular gasoline rose to $3.68 a gallon on Monday. That's up 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. This is Amerine Woodyard, with EIA, in Washington.

  2. Holographic technology could increase solar efficiency

    Broader source: Energy.gov [DOE]

    The Torrance, Calif.-based company is working on a product that could help solar energy producers get both kinds of energy out of the same sunlight -- potentially increasing a system’s return. Using holographic thin-film, Luminit is working on a solar cogeneration system that also tracks sunlight across the sky without movable parts.

  3. Increasing security in inter-chip communication

    DOE Patents [OSTI]

    Edwards, Nathan J; Hamlet, Jason; Bauer, Todd; Helinski, Ryan

    2014-10-28

    An apparatus for increasing security in inter-chip communication includes a sending control module, a communication bus, and a receiving control module. The communication bus is coupled between the sending control module and the receiving control module. The sending control module operates to send data on the communication bus, disable the communication bus when threats are detected, or both.

  4. Analyzing the Contribution of Aerosols to an Observed Increase in Direct Normal Irradiance in Oregon

    SciTech Connect (OSTI)

    Riihimaki, Laura D.; Vignola, F.; Long, Charles N.

    2009-01-22

    Annual average total irradiance increases by 1-2% per decade at three mon- itoring stations in Oregon over the period from 1980 to 2007. Direct normal irradiance measurements increase by 5% per decade over the same time pe- riod. The measurements show no sign of a dimming before 1990. The impact of high concentrations of stratospheric aerosols following the volcanic erup- tions of El Chichon and Mt. Pinatubo are clearly seen in the measurements. Removing these years from the annual average all-sky time series reduces the trends in both total and direct normal irradiance. Clear-sky periods from this long direct normal time series are used in conjunction with radiative trans- fer calculations to test whether part of the increase could be caused by an- thropogenic aerosols. All three sites show relatively low clear-sky measure- ments before the eruption of El Chichon in 1982, suggesting higher aerosol loads during this period. After removing the periods most strongly impacted by volcanic eruptions, two of the sites show statistically signicant increases in clear-sky direct normal irradiance from 1987 to 2007. Radiative transfer calculations of the impact of volcanic aerosols and tropospheric water vapor indicate that only about 20% of that clear-sky increase between background aerosol periods before and after the eruption of Mt. Pinatubo can be explained by these two factors. Thus, a statistically signicant clear-sky trend remains between 1987 and 2007 that is consistent with the hypothesis that at least some of the increase in surface irradiance could be caused by a reduction of anthropogenic aerosols. D

  5. Increased CPC batch size study for Tank 42 sludge in the Defense Waste Processing Facility

    SciTech Connect (OSTI)

    Daniel, W.E.

    2000-01-06

    A series of experiments have been completed at TNX for the sludge-only REDOX adjusted flowsheet using Tank 42 sludge simulant in response to the Technical Task Request HLW/DWPT/TTR-980013 to increase CPC batch sizes. By increasing the initial SRAT batch size, a melter feed batch at greater waste solids concentration can be prepared and thus increase melter output per batch by about one canister. The increased throughput would allow DWPF to dispose of more waste in a given time period thus shortening the overall campaign.

  6. THE FREQUENCY OF LOW-MASS EXOPLANETS. III. TOWARD {eta}{sub +} AT SHORT PERIODS

    SciTech Connect (OSTI)

    Wittenmyer, Robert A.; Tinney, C. G.; Bailey, J.; Horner, J.; Butler, R. P.; O'Toole, Simon J.; Jones, H. R. A.; Carter, B. D.

    2011-09-01

    Determining the occurrence rate of 'super-Earth' planets (m sin i < 10 M{sub +}) is a critically important step on the path toward determining the frequency of Earth-like planets ({eta}{sub +}), and hence the uniqueness of our solar system. Current radial-velocity surveys, achieving precisions of 1 m s{sup -1}, are now able to detect super-Earths and provide meaningful estimates of their occurrence rate. We present an analysis of 67 solar-type stars from the Anglo-Australian Planet Search specifically targeted for very high precision observations. When corrected for incompleteness, we find that the planet occurrence rate increases sharply with decreasing planetary mass. Our results are consistent with those from other surveys: in periods shorter than 50 days, we find that 3.0% of stars host a giant (msin i > 100 M{sub +}) planet, and that 17.4% of stars host a planet with msin i < 10 M{sub +}. The preponderance of low-mass planets in short-period orbits is in conflict with formation simulations in which the majority of super-Earths reside at larger orbital distances. This work gives a hint as to the size of {eta}{sub +}, but to make meaningful predictions on the frequency of terrestrial planets in longer, potentially habitable orbits, low-mass terrestrial planet searches at periods of 100-200 days must be made an urgent priority for ground-based Doppler planet searches in the years ahead.

  7. Edge effects in propagation of terahertz radiation in subwavelength periodic structures

    SciTech Connect (OSTI)

    Gelmont, B. Parthasarathy, R.; Globus, T.

    2008-08-15

    Improving detection sensitivity of biological molecules with low absorption characteristics in the terahertz gap still remains an important issue in terahertz vibrational resonance spectroscopy. One possible way to increase coupling of incident terahertz radiation to molecules is to exploit local enhancement of electromagnetic field in periodic slot arrays. In this work, we show that periodic arrays of rectangular slots with subwavelength widths provide for local electromagnetic field enhancements due to edge effects in our low frequency range of interest, 10-25 cm{sup -1}. Periodic structures of Au doped Si and InSb were studied. The half power enhancement width is {approx}500 nm or less around the slot, edges in all cases, thereby possibly bringing terahertz sensing to the nanoscale. InSb is confirmed to offer the highest results with local power enhancements on the order of 1100 at frequency 14 cm{sup -1}. InSb and Si have large skin depths in our frequency range of interest and so the analysis of their structures was done through the Fourier expansion method of field diffracted from gratings. Surface impedance boundary conditions were employed to model the Au structure. The applications possibly include development of novel biosensors, and monitoring biophysical processes such as DNA denaturation.

  8. Increasing water holding capacity for irrigation

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

    Increasing water holding capacity for irrigation Researchers recommend solutions for sediment trapping in irrigation system LANL and SNL leveraged technical expertise to determine the sources of sediment and recommend solutions for irrigation sediment buildup management. April 3, 2012 Santa Cruz Irrigation District (SCID) Kenny Salazar, owner of Kenny Salazar Orchards, stands beside the Santa Cruz Reservoir Dam, which holds back the waters of the Santa Cruz Irrigation District. Salazar, a board

  9. Increasing Biofuel Deployment through Renewable Super Premium

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

    Demonstration & Market Transformation Platform Tim Theiss, ORNL Bob McCormick, NREL Jeongwoo Han, ANL Increasing Biofuel Deployment through Renewable Super Premium 2015 Bioenergy Technologies Office Peer Review March 23, 2015 2 | Bioenergy Technologies Office Project Goals are Aligned with DMT & BETO Goals 2025 CAFE Standards (U.S. EPA and U.S. NHTSA standards) FUEL ECONOMY STANDARDS 70% NO x & PM, 85% NMOG < 10 ppm sulfur in gasoline (U.S. EPA Tier 3 regulations) EMISSIONS

  10. Increasing Solar Efficiency through Luminescent Solar Concentrators -

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

    Increasing Biofuel Deployment and Utilization through Development of Renewable Super Premium: Infrastructure Assessment K. Moriarty National Renewable Energy Laboratory M. Kass and T. Theiss Oak Ridge National Laboratory Technical Report NREL/TP-5400-61684 November 2014 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National

  11. Beyond periodic orbits: An example in nonhydrogenic atoms

    SciTech Connect (OSTI)

    Dando, P.A.; Monteiro, T.S.; Delande, D.; Taylor, K.T. (Department of Mathematics, Royal Holloway, University of London, Egham, Surrey, TW20 0EX (United Kingdom) Laboratoire Kastler-Brossel, Universite Pierre et Marie Curie, 4 place Jussieu, F-75005 Paris (France) Department of Applied Mathematics and Theoretical Physics, Queen's University Belfast, Belfast, BT7 1NN (United Kingdom))

    1995-02-13

    The spectrum of hydrogen in a magnetic field is a paradigm of quantum chaos and may be analyzed accurately by periodic-orbit-type theories. In nonhydrogenic atoms, the core induces pure quantum effects, especially additional spectral modulations, which cannot be analyzed reliably in terms of classical orbits and their stability parameters. Provided core-scattered waves are included consistently, core-scattered modulations as well as corrected amplitudes for primitive orbits are in excellent agreement with quantum results. We consider whether these systems correspond to quantum chaos.

  12. DURING THIS REPORTING PERIOD, WE ISSUED 39 REPORTS; IDENTIFIED

    Energy Savers [EERE]

    39 REPORTS; IDENTIFIED $12.6 MILLION IN FUNDS PUT TO BETTER USE AND $19.3 MILLION IN QUESTIONED COSTS; OBTAINED $6.2 MILLION IN FINES, SETTLEMENTS, AND RECOVERIES, 6 CRIMINAL CONVICTIONS, 20 SUSPENSIONS AND DEBARMENTS, AND 51 CIVIL AND ADMINISTRATIVE ACTIONS; AND RECEIVED 1,679 HOTLINE CONTACTS. DURING THIS REPORTING PERIOD, WE ISSUED 39 REPORTS; IDENTIFIED $12.6 MILLION IN FUNDS PUT TO BETTER US AND $19.3 MILLION IN QUESTIONED COSTS; OBTAINED $6.2 MILLION IN FINES, SETTLEMENTS, AND RECOVERIES,

  13. Budget Period 2 Summary Report Part 2: Hywind Maine Project

    SciTech Connect (OSTI)

    Driscoll, Frederick; Platt, Andrew; Sirnivas, Senu

    2015-08-15

    This project was performed under the Work for Others—Funds in Agreement FIA-14-1793 between Statoil and the Alliance for Sustainable Energy, manager and operator of the National Renewable Energy Laboratory (NREL). To support the development of a 6-MW spar-mounted offshore wind turbine, Statoil funded NREL to perform tasks in the following three categories: 1. Design and analysis 2. Wake modeling 3. Concept resource assessment. This study expands upon the work conducted in Budget Period 1 (BP1) to investigate the influence of the wake generated from an upstream turbine on a downstream turbine using Computational Fluid Dynamics (CFD) high-fidelity modeling tool. Simulator fOr Wind Farms Application (SOWFA) [1] is an NREL high fidelity modeling tool that couples OpenFOAM [2] CFD and NREL’s Aero-Elastic code Fatigue, Aerodynamics, Structures, and Turbulence (FAST)[3]. In BP1 the configuration was based on Hywind-3MW at 140 m water depth in the Gulf of Maine; however this study for Budget Period 2 (BP2) the configuration investigated is based on Hywind-6MW at 220 m water depth off the coast of Boston. The objectives were to perform two-turbines One-Way Coupling (OWC), three-turbines Two-Way Coupling (TWC), and to investigate wind power plant optimization.

  14. Short-period pulsar oscillations following a glitch

    SciTech Connect (OSTI)

    Van Eysden, C. A.

    2014-07-10

    Following a glitch, the crust and magnetized plasma in the outer core of a neutron star are believed to rapidly establish a state of co-rotation within a few seconds by process analogous to classical Ekman pumping. However, in ideal magnetohydrodynamics, a final state of co-rotation is inconsistent with conservation of energy of the system. We demonstrate that, after the Ekman-like spin up is completed, magneto-inertial waves continue to propagate throughout the star, exciting torsional oscillations in the crust and plasma. The crust oscillation is irregular and quasi-periodic, with a dominant frequency of the order of seconds. Crust oscillations commence after an Alfvn crossing time, approximately half a minute at the magnetic pole, and are subsequently damped by the electron viscosity over approximately an hour. In rapidly rotating stars, the magneto-inertial spectrum in the core approaches a continuum, and crust oscillations are damped by resonant absorption analogous to quasi-periodic oscillations in magnetars. The oscillations predicted are unlikely to be observed in timing data from existing radio telescopes, but may be visible to next generation telescope arrays.

  15. Periodicity of the solar full-disk magnetic fields

    SciTech Connect (OSTI)

    Xiang, N. B.; Qu, Z. N.; Zhai, Q.

    2014-07-01

    A full-disk solar magnetogram has been measured each day since 1970 January 19, and the daily Magnetic Plage Strength Index (MPSI) and the daily Mount Wilson Sunspot Index (MWSI) were calculated for each magnetogram at the Mount Wilson Observatory. The MPSI and MWSI are used to investigate the periodicity of the solar full-disk magnetic activity through autocorrelation analyses. Just two periods, the solar cycle and the rotation cycle, are determined in both the MPSI (the solar full-disk weak magnetic field activity) and MWSI (the solar full-disk strong magnetic field activity) with no annual signal found. The solar cycle for MPSI (10.83 yr) is found to be obviously longer than that for MWSI (9.77 yr). The rotation cycle is determined to be 26.8 ± 0.63 sidereal days for MPSI and 27.4 ± 2.4 sidereal days for MWSI. The rotation cycle length for MPSI is found to fluctuate around 27 days within a very small amplitude, but for MWSI it obviously temporally varies with a rather large amplitude. The rotation cycle for MWSI seems longer near solar minimum than at solar maximum. Cross-correlation analyses of daily MPSI and MWSI are carried out, and it is inferred that the MPSI components partly come from relatively early MWSI measurements.

  16. PULSATION PERIOD VARIATIONS IN THE RRc LYRAE STAR KIC 5520878

    SciTech Connect (OSTI)

    Hippke, Michael; Learned, John G.; Zee, A.; Edmondson, William H.; Lindner, John F.; Kia, Behnam; Ditto, William L.; Stevens, Ian R. E-mail: jgl@phys.hawaii.edu E-mail: w.h.edmondson@bham.ac.uk E-mail: wditto@hawaii.edu E-mail: irs@star.sr.bham.ac.uk

    2015-01-01

    Learned et al. proposed that a sufficiently advanced extra-terrestrial civilization may tickle Cepheid and RR Lyrae variable stars with a neutrino beam at the right time, thus causing them to trigger early and jogging the otherwise very regular phase of their expansion and contraction. This would turn these stars into beacons to transmit information throughout the galaxy and beyond. The idea is to search for signs of phase modulation (in the regime of short pulse duration) and patterns, which could be indicative of intentional, omnidirectional signaling. We have performed such a search among variable stars using photometric data from the Kepler space telescope. In the RRc Lyrae star KIC 5520878, we have found two such regimes of long and short pulse durations. The sequence of period lengths, expressed as time series data, is strongly autocorrelated, with correlation coefficients of prime numbers being significantly higher (p = 99.8%). Our analysis of this candidate star shows that the prime number oddity originates from two simultaneous pulsation periods and is likely of natural origin. Simple physical models elucidate the frequency content and asymmetries of the KIC 5520878 light curve. Despite this SETI null result, we encourage testing of other archival and future time-series photometry for signs of modulated stars. This can be done as a by-product to the standard analysis, and can even be partly automated.

  17. FORTE log periodic antenna. Phase 1, Final report

    SciTech Connect (OSTI)

    Not Available

    1993-04-22

    This report summarizes the results of ABLE`s design study of the FORTE deployable log periodic antenna. The resulting Baseline Design of the antenna is the basis for ABLE`s proposal for Phase II of this program. ABLE`s approach to meeting the requirements is to use a coilable ABLE mast as the deployable structure ``backbone`` of the antenna and to use deployable tubes for. the log periodic dipole elements of the antenna. This general approach was adopted at the outset of the Phase I Design Study. The remainder of the study was devoted to detailed design and analysis to properly size these types of mast and antenna elements and to design their deployment mechanisms. Demonstration models of the mast and antenna element deployer were fabricated as part of Phase I study. The study showed that ABLE`s design approach is feasible and can meet all the specified design requirements except the mass limit of 13.5 kg. Results of the design and analysis studies are summarized in this report. The mast and dipole element deployer are to be demonstrated to LANL personnel at the conclusion of this Phase I study.

  18. Gasoline prices continue to increase (long version)

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

    , 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.48 a gallon on Monday. That's up 3 ½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.71 a gallon, up 5.6 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.23 a gallon, up 1.8 cents. This is Marcela Rourk, with EIA, in Washington.

  19. Gasoline prices continue to increase (long version)

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

    March 10, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.51 a gallon on Monday. That's up 3.3 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.76 a gallon, up 4.7 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.25 a gallon, up 2 ½ cents.

  20. Gasoline prices continue to increase (long version)

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

    7, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.55 a gallon on Monday. That's up 3½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.81 a gallon, up 5½ cents from a week ago. Prices were lowest in the Gulf Coast region at 3.28 a gallon, up 3.1 cents. This is Marcela Rourk, with EIA, in Washington.

  1. Gasoline prices continue to increase (long version)

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

    14, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.65 a gallon on Monday. That's up 5½ cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.98 a gallon, up 9.7 cents from a week ago. Prices were lowest in the Rocky Mountain states at 3.44 a gallon, down 8-tenths of a penny

  2. Gasoline prices continue to increase (long version)

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

    21, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.68 a gallon on Monday. That's up 3.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.03 a gallon, up a nickel from a week ago. Prices were lowest in the Rocky Mountain states at 3.45 a gallon, up 8-tenths of a penny

  3. Gasoline prices continue to increase (long version)

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

    24, 2014 Gasoline prices continue to increase (long version) The U.S. average retail price for regular gasoline rose to $3.44 a gallon on Monday. That's up 6.4 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 3.65 a gallon, up 8 cents from a week ago. Prices were lowest in the Gulf Coast region at 3.21 a gallon, up

  4. Increasing jet entrainment, mixing and spreading

    DOE Patents [OSTI]

    Farrington, Robert B.

    1994-01-01

    A free jet of air is disturbed at a frequency that substantially matches natural turbulences in the free jet to increase the entrainment, mixing, and spreading of air by the free jet, for example in a room or other enclosure. The disturbances are created by pulsing the flow of air that creates the free jet at the desired frequency. Such pulsing of the flow of air can be accomplished by sequentially occluding and opening a duct that confines and directs the flow of air, such as by rotating a disk on an axis transverse to the flow of air in the duct.

  5. Final Technical Report: Increasing Prediction Accuracy.

    SciTech Connect (OSTI)

    King, Bruce Hardison; Hansen, Clifford; Stein, Joshua

    2015-12-01

    PV performance models are used to quantify the value of PV plants in a given location. They combine the performance characteristics of the system, the measured or predicted irradiance and weather at a site, and the system configuration and design into a prediction of the amount of energy that will be produced by a PV system. These predictions must be as accurate as possible in order for finance charges to be minimized. Higher accuracy equals lower project risk. The Increasing Prediction Accuracy project at Sandia focuses on quantifying and reducing uncertainties in PV system performance models.

  6. Increasing jet entrainment, mixing and spreading

    DOE Patents [OSTI]

    Farrington, R.B.

    1994-08-16

    A free jet of air is disturbed at a frequency that substantially matches natural turbulences in the free jet to increase the entrainment, mixing, and spreading of air by the free jet, for example in a room or other enclosure. The disturbances are created by pulsing the flow of air that creates the free jet at the desired frequency. Such pulsing of the flow of air can be accomplished by sequentially occluding and opening a duct that confines and directs the flow of air, such as by rotating a disk on an axis transverse to the flow of air in the duct. 11 figs.

  7. Environmental implications of increased biomass energy use

    SciTech Connect (OSTI)

    Miles, T.R. Sr.; Miles, T.R. Jr. , Portland, OR )

    1992-03-01

    This study reviews the environmental implications of continued and increased use of biomass for energy to determine what concerns have been and need to be addressed and to establish some guidelines for developing future resources and technologies. Although renewable biomass energy is perceived as environmentally desirable compared with fossil fuels, the environmental impact of increased biomass use needs to be identified and recognized. Industries and utilities evaluating the potential to convert biomass to heat, electricity, and transportation fuels must consider whether the resource is reliable and abundant, and whether biomass production and conversion is environmentally preferred. A broad range of studies and events in the United States were reviewed to assess the inventory of forest, agricultural, and urban biomass fuels; characterize biomass fuel types, their occurrence, and their suitability; describe regulatory and environmental effects on the availability and use of biomass for energy; and identify areas for further study. The following sections address resource, environmental, and policy needs. Several specific actions are recommended for utilities, nonutility power generators, and public agencies.

  8. Improved efficiency of photoconductive THz emitters by increasing the effective contact length of electrodes

    SciTech Connect (OSTI)

    Singh, Abhishek; Surdi, Harshad; Nikesh, V. V.; Prabhu, S. S.; Döhler, G. H.

    2013-12-15

    We study the effect of a surface modification at the interface between metallic electrodes and semiconducting substrate in Semi-Insulating GaAs (SI-GaAs) based photoconductive emitters (PCE) on the emission of Tera-Hertz (THz) radiation. We partially etch out a 500 nm thick layer of SI-GaAs in grating like pattern with various periods before the contact deposition. By depositing the electrodes on the patterned surface, the electrodes follow the contour of the grating period. This increases the effective contact length of the electrodes per unit area of the active regions on the PCE. The maxima of the electric field amplitude of the THz pulses emitted from the patterned surface are enhanced by up to more than a factor 2 as compared to an un-patterned surface. We attribute this increase to the increase of the effective contact length of the electrode due to surface patterning.

  9. Property:OpenEI/UtilityRate/DemandChargePeriod1 | Open Energy...

    Open Energy Info (EERE)

    Jump to: navigation, search This is a property of type Number. Name: Demand Charge Period 1 Pages using the property "OpenEIUtilityRateDemandChargePeriod1"...

  10. Consumers face $5. 9 million rate increase

    SciTech Connect (OSTI)

    Not Available

    1984-11-01

    Testimony at hearings before the Garrison Diversion Compromise Commission claimed that rural consumers in the Upper Midwest could face $5.9 million in electric rate increases if the commission deauthorizes the project and hydroelectric rates go up to pay the costs of the 1944 Pick-Sloan project originally assigned to irrigation. If there is no irrigation development, the revenue that irrigation must raise to repay the $67 million debt assigned to irrigation must be reassigned to hydroelectric power. The commission represents a compromise between supporters and opponents of the Garrison Diversion project. Spokesmen for regional utilities spoke in support of the project as an investment whose costs have escalated because of delays at the expense of economic development in North Dakota.