National Library of Energy BETA

Sample records for transit improvements travel

  1. Travel Patterns And Characteristics Of Transit Users In New York State

    SciTech Connect (OSTI)

    Hwang, Ho-Ling; Wilson, Daniel W.; Reuscher, Tim; Chin, Shih-Miao; Taylor, Rob D.

    2015-12-01

    This research is a detailed examination of the travel behaviors and patterns of transit users within New York State (NYS), primarily based on travel data provided by the National Household Travel Survey (NHTS) in 2009 and the associated Add-on sample households purchased by the New York State Department of Transportation (NYSDOT). Other data sources analyzed in this study include: NYS General Transit Feed Specification (GTFS) to assist in analyzing spatial relationships for access to transit and the creation of Transit Shed geographic areas of 1, 2.5, and 5 miles from transit stop locations, LandScan population database to understand transit coverage, and Census Bureau s American Community Survey (ACS) data to examine general transit patterns and trends in NYS over time. The majority of analyses performed in this research aimed at identifying transit trip locations, understanding differences in transit usage by traveler demographics, as well as producing trip/mode-specific summary statistics including travel distance, trip duration, time of trip, and travel purpose of transit trips made by NYS residents, while also analyzing regional differences and unique travel characteristics and patterns. The analysis was divided into two aggregated geographic regions: New York Metropolitan Transportation Council (NYMTC) and NYS minus NYMTC (Rest of NYS). The inclusion of NYMTC in all analysis would likely produce misleading conclusions for other regions in NYS. TRANSIT COVERAGE The NYS transit network has significant coverage in terms of transit stop locations across the state s population. Out of the 19.3 million NYS population in 2011, about 15.3 million (or 79%) resided within the 1-mile transit shed. This NYS population transit coverage increased to 16.9 million (or 88%) when a 2.5-mile transit shed was considered; and raised to 17.7 million (or 92%) when the 5-mile transit shed was applied. KEY FINDINGS Based on 2009 NHTS data, about 40% of NYMTC households used transit as their means of transportation on any typical day; while only 4% of households located elsewhere in NYS did the same. Regardless of geographic regions, 45% of the transit users came from households with income under $40,000, while 20% of transit users were from the top income group of $100,000 plus households. Travel made by NYMTC transit users were nearly twice as likely to be for work trips as compared to their counterpart non-transit users. Transit users in NYS generally made more trips but with shorter distances; they also drove less, which resulted in fewer miles. Furthermore, NYS transit users spent more time on each trip than their counterpart non-transit users. Because of the intensity of transit network services within NYMTC, 88% of the households reside within the 1-mile transit shed. Outside the NYMTC, however, only 54% of the region s households are located within the same distance. Impact to vehicle ownership was clearly evidenced. Nearly all people from zero-vehicle households in NYMTC lived within a 1-mile radius of transit stops. Elsewhere in NYS, 74% of residents from zero-vehicle households resided within the 1-mile transit shed. Close proximity to transit has a significant impact on increasing transit uses. Transit mode share, as a main mode, was higher for NYS residents that lived within the 1-mile transit shed than others. Based on ACS data, over the period from 2005 to 2013, the total number of NYMTC workers increased more than 9%, while transit commuting grew at a higher rate of more than 15% during the same period. REMARKS Note that transit use in areas outside the NYMTC region generally is not common, resulting in a smaller sample size of transit users in the Rest of NYS region. Caution should be exercised for statistics produced based on small sample sizes that tend to be less precise (i.e., with a larger margin of error). Furthermore, standardized transit network data were not available prior to 2005; comparable analyses using 2001 NHTS therefore was not feasible. As a result, this study focused on examining travel behaviors of transit users using 2009 NHTS data only.

  2. Travel Reimbursement

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

    Travel Reimbursement /about/_assets/images/icon-70th.jpg Travel Reimbursement Travel preapproval and reimbursement process information for interviewees, students, and relocations including new regular hires, term assignment hires, post-doctoral or advance study employees, and long-term visiting staff members. Interview Travel» Graduate, Undergraduate Travel» Relocation Travel» Guest Travel» TOP STORIES - highlights of our science, people, technologies close Connections Laboratory helps Ohkay

  3. Interview Travel

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

    Interview Travel Interview Travel Travel preapproval and reimbursement process information for invited Laboratory job interviewees. Contact Travel Reservations (505) 667-1692 Email Student Travel (505) 667-5859 Interview travel process Interview travel will be reimbursed only when a Laboratory organization has invited a candidate to come to the Laboratory to interview for a specific job and the following process is used. Eligible expenses are paid post-interview only. Before beginning, review

  4. Relocation Travel

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

    Relocation Travel Relocation Travel Travel reimbursement process information for relocations including new regular hires, term assignment hires, post-doctoral or advance study employees, and long-term visiting staff members. Contact Gloria Salazar Relocation Office (505) 665-4484 Email Sher Robinson (505) 665-8529 Relocation travel process Relocation travel will be reimbursed only when the following process is used. This includes relocation travel for new regular hires, term assignment hires,

  5. Guest Travel

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

    group office for reimbursement.) Guest makes reservations for airline, rental car, and hotel, in accordance with Laboratory travel regulations. After guest returns Visitor...

  6. An improved model for the transit entropy of monatomic liquids

    SciTech Connect (OSTI)

    Wallace, Duane C; Chisolm, Eric D; Bock, Nicolas

    2009-01-01

    In the original formulation of V-T theory for monatomic liquid dynamics, the transit contribution to entropy was taken to be a universal constant, calibrated to the constant-volume entropy of melting. This model suffers two deficiencies: (a) it does not account for experimental entropy differences of {+-}2% among elemental liquids, and (b) it implies a value of zero for the transit contribution to internal energy. The purpose of this paper is to correct these deficiencies. To this end, the V-T equation for entropy is fitted to an overall accuracy of {+-}0.1% to the available experimental high temperature entropy data for elemental liquids. The theory contains two nuclear motion contributions: (a) the dominant vibrational contribution S{sub vib}(T/{theta}{sub 0}), where T is temperature and {theta}{sub 0} is the vibrational characteristic temperature, and (b) the transit contribution S{sub tr}(T/{theta}{sub tr}), where {theta}{sub tr} is a scaling temperature for each liquid. The appearance of a common functional form of S{sub tr} for all the liquids studied is a property of the experimental data, when analyzed via the V-T formula. The resulting S{sub tr} implies the correct transit contribution to internal energy. The theoretical entropy of melting is derived, in a single formula applying to normal and anomalous melting alike. An ab initio calculation of {theta}{sub 0}, based on density functional theory, is reported for liquid Na and Cu. Comparison of these calculations with the above analysis of experimental entropy data provides verification of V-T theory. In view of the present results, techniques currently being applied in ab initio simulations of liquid properties can be employed to advantage in the further testing and development of V-T theory.

  7. Thurston Regional Planning Council Helps Washingtonians Save on Travel Costs

    Broader source: Energy.gov [DOE]

    Thurston County provides travel information for lower costs, improved safety, and faster response to challenges.

  8. Travel | The Ames Laboratory

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

    Travel Travel The Office of Travel Management serves as the Department's POC for the following services: Headquarters Travel Management Center (TMC) Official Travel, Domestic and Foreign Foreign Travel Management System (FTMS) Official Travel Regulations and Guidelines U.S. Passports and Visa Services (Official and Diplomatic) Non-Refundable Airfare Guidance International Insurance for DOE Officials (MEDEX) Car Rental Hotel Reservations Travel FAQs For questions about Travel Services or the

  9. Travel | Department of Energy

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

    Travel Travel The Office of Travel Management serves as the Department's POC for the following services: Headquarters Travel Management Center (TMC) Official Travel, Domestic and Foreign Foreign Travel Management System (FTMS) Official Travel Regulations and Guidelines U.S. Passports and Visa Services (Official and Diplomatic) Non-Refundable Airfare Guidance International Insurance for DOE Officials (MEDEX) Car Rental Hotel Reservations Travel FAQs For questions about Travel Services or the

  10. travel-demand-modeling

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

    Demand Modeler, Cambridge Systematics, Tallahassee, FL Abstract ... Travel demand ... Ahmed Mohideen Travel Demand Modeler Cambridge Systematics, Tallahassee, FL Transportation ...

  11. Relocation Travel FAQs Travel/Moving FAQs

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

    Relocation Travel FAQs Travel/Moving FAQs When may I begin making travel and moving arrangements? No arrangements should be made prior to receiving a written offer of employment from Human Resources (HR) Division. The written offer letter is the official offer. The offer of employment must be accepted in writing (a signature on the offer letter) and returned to the Laboratory before making any travel or moving arrangements. How will I receive the relocation information? The relocation

  12. Graduate, Undergraduate Student Travel

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

    Student arranges for travel. (To prevent charges and fees that are not reimbursable, book airfare and lodging through the Lab's Travel Reservations Team or directly through...

  13. EERE Success Story—Thurston Regional Planning Council Helps Washingtonians Save on Travel Costs

    Broader source: Energy.gov [DOE]

    Thurston County provides travel information for lower costs, improved safety, and faster response to challenges.

  14. Travel Policy | The Ames Laboratory

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

    Policy Travel Policy Travel Policy for Contractor Personnel Travel Policy Changes October 1, 2009 Per Diem Adjustments for Meals Memo or EXAMPLE...

  15. Travel Policy and Procedures

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

    2006-02-17

    The Order supplements the Federal Travel Regulation as principal source of policy for Federal employee travel and relocation and establishes DOE M 552.1-1A, U.S. Department of Energy Travel Manual, dated 2-17-06, as the repository for supplementary travel requirements information. Supersedes DOE O 552.1. Admin Chg 1, dated 10-1-08, supersedes DOE O 552.1A.

  16. Travel Policy and Procedures

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

    2002-09-04

    To supplement the Federal Travel Regulation (41 CFR, Parts 300-304), the principal source of policy for Federal employee travel and relocation matters, and to establish DOE M 552.1-1, U.S. Department of Energy Travel Manual, dated 09-04-02, as the repository for supplementary travel requirements information for the Department of Energy (DOE). Cancels DOE 1500.2A and DOE 1500.4A. Canceled by DOE O 552.1A.

  17. Travel Policy and Procedures

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

    2006-02-17

    The Order supplements the Federal Travel Regulation as principal source of policy for Federal employee travel and relocation and establishes DOE M 552.1-1A, U.S. Department of Energy Travel Manual, dated 2-17-06, as the DOE repository for supplementary travel requirements information. Cancels DOE O 552.1-1. Canceled by DOE O 552.1A Admin Chg 1.

  18. Travel Requirements - ITER (June 2014

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

    Travel Requirements - ITER (June 2014) Prior to any travel under this subcontract, the Seller shall submit their request to travel with the following information to the Technical Project Officer (TPO) for approval, with a copy to the identified US ITER Project Office Travel Administrative Coordinator (TAC), via email: name of traveler as it appears on passport; e-mail address of traveler; dates of travel; purpose of travel; business city; date business begins; and date business ends. The TAC for

  19. Improved layered mixed transition metal oxides for Li-ion batteries

    SciTech Connect (OSTI)

    Doeff, Marca M.; Conry, Thomas; Wilcox, James

    2010-03-05

    Recent work in our laboratory has been directed towards development of mixed layered transition metal oxides with general composition Li[Ni, Co, M, Mn]O2 (M=Al, Ti) for Li ion battery cathodes. Compounds such as Li[Ni1/3Co1/3Mn1/3]O2 (often called NMCs) are currently being commercialized for use in consumer electronic batteries, but the high cobalt content makes them too expensive for vehicular applications such as electric vehicles (EV), plug-in hybrid electric vehicles (PHEVs), or hybrid electric vehicles (HEVs). To reduce materials costs, we have explored partial or full substitution of Co with Al, Ti, and Fe. Fe substitution generally decreases capacity and results in poorer rate and cycling behavior. Interestingly, low levels of substitution with Al or Ti improve aspects of performance with minimal impact on energy densities, for some formulations. High levels of Al substitution compromise specific capacity, however, so further improvements require that the Ni and Mn content be increased and Co correspondingly decreased. Low levels of Al or Ti substitution can then be used offset negative effects induced by the higher Ni content. The structural and electrochemical characterization of substituted NMCs is presented in this paper.

  20. Official Foreign Travel

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

    2002-11-08

    To establish Department of Energy (DOE) and National Nuclear Security Administration (NNSA) requirements and responsibilities governing official foreign travel by Federal and contractor employees. The Page Change 1 to the CRD issued 11-8-02, will expand the requirements for country clearance for contractors to include all official foreign travel, including travel to nonsensitive countries. Cancels DOE O 551.1. Canceled by DOE O 551.1B.

  1. Official Foreign Travel

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

    2012-04-12

    The order establishes requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1C.

  2. Official Foreign Travel

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

    2008-06-24

    The Order sets forth requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1B.

  3. Official Foreign Travel

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

    2012-04-02

    The order establishes DOE requirements and responsibilities governing official foreign travel by Federal and contractor employees. The Pg Chg removes the requirement to surrender official passports and replaces it with a process that requires travelers be responsible for safeguarding theirown official passports. Supersedes DOE O 551.1D, dated 4-12-12.

  4. Official Foreign Travel

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

    2000-08-25

    To establish Department of Energy (DOE) and National Nuclear Security Administration (NNSA) requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1. Canceled by DOE O 551.1B.

  5. Official Foreign Travel

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

    2003-08-19

    To establish Department of Energy (DOE) and National Nuclear Security Administration (NNSA) requirements and responsibilities governing official foreign travel by Federal and contractor employees. Cancels DOE O 551.1A. Canceled by DOE O 551.1C.

  6. Official Foreign Travel

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

    2000-01-31

    Establishes Department of Energy (DOE) requirements and responsibilities governing official foreign travel by Federal and contract employees. Cancels DOE O 1500.3. Canceled by DOE O 551.1A.

  7. Traveling-wave photodetector

    DOE Patents [OSTI]

    Hietala, Vincent M.; Vawter, Gregory A.

    1993-01-01

    The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size.

  8. Traveling-wave photodetector

    DOE Patents [OSTI]

    Hietala, V.M.; Vawter, G.A.

    1993-12-14

    The traveling-wave photodetector of the present invention combines an absorptive optical waveguide and an electrical transmission line, in which optical absorption in the waveguide results in a photocurrent at the electrodes of the electrical transmission line. The optical waveguide and electrical transmission line of the electrically distributed traveling-wave photodetector are designed to achieve matched velocities between the light in the optical waveguide and electrical signal generated on the transmission line. This velocity synchronization provides the traveling-wave photodetector with a large electrical bandwidth and a high quantum efficiency, because of the effective extended volume for optical absorption. The traveling-wave photodetector also provides large power dissipation, because of its large physical size. 4 figures.

  9. Accounting Techinican (Travel Duties)

    Broader source: Energy.gov [DOE]

    This position may be filled either at Morgantown, WV or Pittsburgh, PA. A successful candidate in this position will provide technical accounting support to the travel program at the National...

  10. Accounting Technician (Travel Duties)

    Broader source: Energy.gov [DOE]

    This position may be filled either at Morgantown, WV or Pittsburgh, PA. A successful candidate in this position will provide technical accounting support to the travel program at the National...

  11. Effects of Travel Reduction and Efficient Driving on Transportation: Energy Use and Greenhouse Gas Emissions

    Broader source: Energy.gov [DOE]

    Numerous transportation strategies are directed at reducing energy use and greenhouse gas (GHG) emissions by changing the behavior of individual drivers or travelers. These behavioral changes may have the effect of reducing travel, shifting travel to more efficient modes, or improving the efficiency of existing travel. Since the 1970s, federal, regional, state and municipal agencies have tried to reduce energy use, emissions, and congestion by influencing travel behavior. This report reviews and summarizes the literature on relationships between these strategies and transportation-related energy use and GHG emissions to examine how changes to travel behavior can reduce transportation energy use and discuss the potential for federal actions to affect travel behavior.

  12. Transit confirmation and improved stellar and planet parameters for the super-Earth HD 97658 b and its host star

    SciTech Connect (OSTI)

    Van Grootel, V.; Gillon, M.; Scuflaire, R.; Valencia, D.; Madhusudhan, N.; Demory, B.-O.; Queloz, D.; Dragomir, D.; Howe, A. R.; Burrows, A. S.; Deming, D.; Ehrenreich, D.; Lovis, C.; Mayor, M.; Pepe, F.; Segransan, D.; Udry, S.; Seager, S.

    2014-05-01

    Super-Earths transiting nearby bright stars are key objects that simultaneously allow for accurate measurements of both their mass and radius, providing essential constraints on their internal composition. We present here the confirmation, based on Spitzer transit observations, that the super-Earth HD 97658 b transits its host star. HD 97658 is a low-mass (M {sub *} = 0.77 0.05 M {sub ?}) K1 dwarf, as determined from the Hipparcos parallax and stellar evolution modeling. To constrain the planet parameters, we carry out Bayesian global analyses of Keck-High Resolution Echelle Spectrometer (Keck-HIRES) radial velocities and Microvariability and Oscillations of STars (MOST) and Spitzer photometry. HD 97658 b is a massive (M{sub P}=7.55{sub ?0.79}{sup +0.83} M{sub ?}) and large (R{sub P}=2.247{sub ?0.095}{sup +0.098}R{sub ?} at 4.5 ?m) super-Earth. We investigate the possible internal compositions for HD 97658 b. Our results indicate a large rocky component, of at least 60% by mass, and very little H-He components, at most 2% by mass. We also discuss how future asteroseismic observations can improve the knowledge of the HD 97658 system, in particular by constraining its age. Orbiting a bright host star, HD 97658 b will be a key target for upcoming space missions such as the Transiting Exoplanet Survey Satellite (TESS), the Characterizing Exoplanet Satellite (CHEOPS), the Planetary Transits and Oscillations of stars (PLATO), and the James Webb Space Telescope to characterize thoroughly its structure and atmosphere.

  13. Reporting Unofficial Foreign Travel

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

    2000-12-15

    Establishes requirements for the reporting of unofficial travel to foreign countries by DOE and DOE contractor employees that hold an access authorization (personnel security clearances). DOE N 251.40, dated 5/3/01, extended this directive until 12/31/01.

  14. Travel Resources | The Ames Laboratory

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

    Resources Airline Baggage Policies Amtrak Argonne Guest House Association of Corporate Travel Executives Database of hotels that meet fire safety code GSA Per Diem Rates Iowa Road Work ISU - Office Procedure Guide - Travel Policies Map Quest Atlas National Business Travel Association Weather Channel Web Flyer

  15. Sensivitity improvement in low-profile distributed detector systems for tracking sources in transit.

    SciTech Connect (OSTI)

    Vilim, R. B.; Klann, R.; Campos, C.; Medley, T.; Nuclear Engineering Division

    2007-01-01

    The RadTrac real-time detection and tracking software runs on a laptop computer networked to gamma-radiation detectors. A probabilistic estimate for source position is generated by combining measured count rate data with a first-principles stochastic model for the space and time dependence of count rates and knowledge of detector intrinsic efficiency. Recent development work has focused on improving RadTrac sensitivity in low-count rate situations. A method has been developed for processing count rates by energy according to that part of the energy spectrum with the greatest signal-to-noise ratio. In addition a method has been developed that places constraints on the solution that are physically appropriate when count rates approach background. In both instances experiments with a weak source confirmed the uncertainty in estimated position is reduced.

  16. Transferring 2001 National Household Travel Survey

    SciTech Connect (OSTI)

    Hu, Patricia S; Reuscher, Tim; Schmoyer, Richard L; Chin, Shih-Miao

    2007-05-01

    Policy makers rely on transportation statistics, including data on personal travel behavior, to formulate strategic transportation policies, and to improve the safety and efficiency of the U.S. transportation system. Data on personal travel trends are needed to examine the reliability, efficiency, capacity, and flexibility of the Nation's transportation system to meet current demands and to accommodate future demand. These data are also needed to assess the feasibility and efficiency of alternative congestion-mitigating technologies (e.g., high-speed rail, magnetically levitated trains, and intelligent vehicle and highway systems); to evaluate the merits of alternative transportation investment programs; and to assess the energy-use and air-quality impacts of various policies. To address these data needs, the U.S. Department of Transportation (USDOT) initiated an effort in 1969 to collect detailed data on personal travel. The 1969 survey was the first Nationwide Personal Transportation Survey (NPTS). The survey was conducted again in 1977, 1983, 1990, 1995, and 2001. Data on daily travel were collected in 1969, 1977, 1983, 1990 and 1995. In 2001, the survey was renamed the National Household Travel Survey (NHTS) and it collected both daily and long-distance trips. The 2001 survey was sponsored by three USDOT agencies: Federal Highway Administration (FHWA), Bureau of Transportation Statistics (BTS), and National Highway Traffic Safety Administration (NHTSA). The primary objective of the survey was to collect trip-based data on the nature and characteristics of personal travel so that the relationships between the characteristics of personal travel and the demographics of the traveler can be established. Commercial and institutional travel were not part of the survey. Due to the survey's design, data in the NHTS survey series were not recommended for estimating travel statistics for categories smaller than the combination of Census division (e.g., New England, Middle Atlantic, and Pacific), MSA size, and the availability of rail. Extrapolating NHTS data within small geographic areas could risk developing and subsequently using unreliable estimates. For example, if a planning agency in City X of State Y estimates travel rates and other travel characteristics based on survey data collected from NHTS sample households that were located in City X of State Y, then the agency could risk developing and using unreliable estimates for their planning process. Typically, this limitation significantly increases as the size of an area decreases. That said, the NHTS contains a wealth of information that could allow statistical inferences about small geographic areas, with a pre-determined level of statistical certainty. The question then becomes whether a method can be developed that integrates the NHTS data and other data to estimate key travel characteristics for small geographic areas such as Census tract and transportation analysis zone, and whether this method can outperform other, competing methods.

  17. Interviewee Travel Regulations Scope

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

    rucks that travel in the western United States will soon be able to operate clean-burning alternative fuel vehicles (AFVs) along the Interstate Clean Transpor- tation Corridor (ICTC). The ICTC project is the first effort to develop clean transportation corridors to connect Los Angeles, San Bernar- dino, the San Joaquin Valley, Sacra- mento/San Francisco, Salt Lake City, Reno, and Las Vegas along routes 1-15, 1-80, and 1-5/CA-99. The ICTC team, headed by California- based Gladstein and

  18. Transitions to improved confinement regimes induced by changes in heating in zero-dimensional models for tokamak plasmas

    SciTech Connect (OSTI)

    Zhu, H.; Chapman, S. C.; Dendy, R. O.; Itoh, K.

    2014-06-15

    It is shown that rapid substantial changes in heating rate can induce transitions to improved energy confinement regimes in zero-dimensional models for tokamak plasma phenomenology. We examine for the first time the effect of step changes in heating rate in the models of Kim and Diamond [Phys. Rev. Lett. 90, 185006 (2003)] and Malkov and Diamond [Phys. Plasmas 16, 012504 (2009)], which nonlinearly couple the evolving temperature gradient, micro-turbulence, and a mesoscale flow; and in the extension of Zhu et al. [Phys. Plasmas 20, 042302 (2013)], which couples to a second mesoscale flow component. The temperature gradient rises, as does the confinement time defined by analogy with the fusion context, while micro-turbulence is suppressed. This outcome is robust against variation of heating rise time and against introduction of an additional variable into the model. It is also demonstrated that oscillating changes in heating rate can drive the level of micro-turbulence through a period-doubling path to chaos, where the amplitude of the oscillatory component of the heating rate is the control parameter.

  19. On-Line Travel Reservations through "Concur Travel" | The Ames Laboratory

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

    On-Line Travel Reservations through "Concur Travel" What is Concur Travel (formerly known as Cliqbook)? Concur Travel is an on-line booking tool. Concur Travel is independent of Travel and Transport and it is a software that Travel and Transport has a software license with as a part of the Travel contract with Iowa State University. Concur Travel uses the GDS (Global Distribution Systems). Concur Travel should provide a more extensive flight search than other similar on-line travel

  20. NEUP Student Travel Request Form | Department of Energy

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

    Student Travel Request Form NEUP Student Travel Request Form NEUP Fellowship Travel Request Form PDF icon Student Travel Request Form.pdf More Documents & Publications Investing in ...

  1. ORISE: Travelers' Health Campaign | How ORISE is Making a Difference

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

    Travelers' Health Campaign Travelers' Health Campaign takes critical messages worldwide Travelers' Health Campaign poster Click image to enlarge Traveling can be a dangerous...

  2. Chapter 3. Vehicle-Miles Traveled

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

    3. Vehicle-Miles Traveled Chapter 3. Vehicle-Miles Traveled Vehicle-miles traveled--the number of miles that residential vehicles are driven--is probably the most important...

  3. Microsoft Word - Travel Checklist.doc

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

    kinds of tickets are and are not reimbursable are, in conjunction with the ongoing globalization of airline and other travel consortiums, complex enough that whether a travel...

  4. ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION...

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

    9: TRAVEL AND TRANSPORTATION RECORDS (Revision 2) ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS (Revision 2) This schedule covers records documenting the ...

  5. Method to improve superconductor cable

    DOE Patents [OSTI]

    Borden, A.R.

    1984-03-08

    A method is disclosed of making a stranded superconductor cable having improved flexing and bending characteristics. In such method, a plurality of superconductor strands are helically wound around a cylindrical portion of a mandrel which tapers along a transitional portion to a flat end portion. The helically wound strands form a multistrand hollow cable which is partially flattened by pressure rollers as the cable travels along the transitional portion. The partially flattened cable is impacted with repeated hammer blows as the hollow cable travels along the flat end portion. The hammer blows flatten both the internal and the external surfaces of the strands. The cable is fully flattened and compacted by two sets of pressure rollers which engage the flat sides and the edges of the cable after it has traveled away from the flat end portion of the mandrel. The flattened internal surfaces slide easily over one another when the cable is flexed or bent so that there is very little possibility that the cable will be damaged by the necessary flexing and bending required to wind the cable into magnet coils.

  6. Sequentially pulsed traveling wave accelerator

    DOE Patents [OSTI]

    Caporaso, George J.; Nelson, Scott D.; Poole, Brian R.

    2009-08-18

    A sequentially pulsed traveling wave compact accelerator having two or more pulse forming lines each with a switch for producing a short acceleration pulse along a short length of a beam tube, and a trigger mechanism for sequentially triggering the switches so that a traveling axial electric field is produced along the beam tube in synchronism with an axially traversing pulsed beam of charged particles to serially impart energy to the particle beam.

  7. 2001 New York State NHTS: Travel Patterns of Special Populations

    SciTech Connect (OSTI)

    Hu, Patricia S; Reuscher, Tim

    2010-03-01

    Policymakers rely on transportation statistics, including data on personal travel behavior, to formulate strategic transportation policies, and to improve the safety and efficiency of the U.S. transportation system. Data on personal travel trends are needed to examine the reliability, efficiency, capacity, and flexibility of the Nation's transportation system to meet current demands and accommodate future demands; to assess the feasibility and efficiency of alternative congestion-alleviating technologies (e.g., high-speed rail, magnetically levitated trains, intelligent vehicle and highway systems); to evaluate the merits of alternative transportation investment programs; and to assess the energy-use and air-quality impacts of various policies. To address these data needs, the U.S. Department of Transportation (USDOT) initiated an effort in 1969 to collect detailed data on personal travel. The 1969 survey was the first Nationwide Personal Transportation Survey (NPTS). The survey was conducted again in 1977, 1983, 1990, 1995, and 2001. Data on daily travel were collected in 1969, 1977, 1983, 1990 and 1995. Longer-distance travel was collected in 1977 and 1995. The 2001 National Household Travel Survey (NHTS) collected both daily and longer-distance trips in one survey. The 2001 survey was sponsored by three USDOT agencies: Federal Highway Administration (FHWA), Bureau of Transportation Statistics (BTS), and National Highway Traffic Safety Administration (NHTSA). The primary objective of the survey was to collect trip-based data on the nature and characteristics of personal travel so that the relationships between the characteristics of personal travel and the demographics of the traveler can be established. Commercial and institutional travel was not part of the survey. New York State participated in the 2001 NHTS by procuring additional 12,000 sample households. These additional sample households allowed New York State to address transportation planning issues pertinent to geographic areas that are significantly smaller than what the national NHTS data allowed. The final sample size for New York State was 13,423 usable households. In this report, Oak Ridge National Laboratory (ORNL) identifies and analyzes differences, if any, in travel patterns that are attributable to demographic characteristics (e.g., gender, age, race and ethnicity), household characteristics (e.g., low income households, zero and one car households), modal characteristics and geographic location. Travel patterns of those who work at home are examined and compared to those of conventional workers, as well as those who do not work. Focus is given to trip frequency, travel by time of day, trip purpose, and mode choice. For example, included in this analysis is the mobility of the elderly population in New York State. The American society is undergoing a major demographic transformation that is resulting in a greater percentage of older individuals in the population. In addition to demographic changes, recent travel surveys show that an increasing number of older individuals are licensed to drive and that they drive more than their same age cohort did a decade ago. Cohort differences in driving are particularly apparent - not only are more of today's elderly population licensed to drive than their age cohort two decades ago, they also drive more. Equally important are the increase in immigration and in racial and cultural diversity. This report also discusses vehicle availability, socioeconomic characteristics, travel trends (e.g., miles travelled, distance driven, commute patterns), and the transportation accessibility of these populations. Specifically, this report addresses in detail the travel behavior of the following special populations: (1) the elderly, defined as those who were 65 years old or older, (2) low-income households, (3) ethnic groups and immigrants, and (4) those who worked at home.

  8. Solid oxide fuel cell with transitioned cross-section for improved anode gas management at the open end

    DOE Patents [OSTI]

    Zafred, Paolo R.; Draper, Robert

    2012-01-17

    A solid oxide fuel cell (400) is made having a tubular, elongated, hollow, active section (445) which has a cross-section containing an air electrode (452) a fuel electrode (454) and solid oxide electrolyte (456) between them, where the fuel cell transitions into at least one inactive section (460) with a flattened parallel sided cross-section (462, 468) each cross-section having channels (472, 474, 476) in them which smoothly communicate with each other at an interface section (458).

  9. Checklist for Medical Issues When Traveling Overseas | Department...

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

    Benefits Wellness Programs Foreign Travel Health & Wellness Information Checklist for Medical Issues When Traveling Overseas Checklist for Medical Issues When Traveling ...

  10. SRI2007 Conference - Travel Tips

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

    Travel Tips Getting to the Hilton Baton Rouge Capitol Center: From the Baton Rouge Metropolitan Airport (BTR) From the New Orleans International Airport (MSY) Shuttles to and from the Baton Rouge Metropolitan Airport are offered by the Hilton Baton Rouge Capitol Center upon prior arrangements with the hotel. Capitol Park Trolley (pdf) offers free service to downtown restaurants and attractions Monday through Friday, 10:30 am - 2:30 pm. Local rental car companies, click here. Parking: The Hilton

  11. Foreign Travel Health & Wellness Information | Department of...

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

    All travelers should take the following precautions, no matter the destination: Wash hands often with soap and water. Because motor vehicle crashes are a leading cause of injury ...

  12. Fermilab | Tevatron | Tevatron Symposium | Travel and Lodging

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

    Travel and Lodging Directions to Fermilab Local Accommodations Map of Local Hotels Transportation Visa Information Wifi Access at Fermilab Other Useful Links

  13. Estimating Traveler Populations at Airport and Cruise Terminals for Population Distribution and Dynamics

    SciTech Connect (OSTI)

    Jochem, Warren C; Sims, Kelly M; Bright, Eddie A; Urban, Marie L; Rose, Amy N; Coleman, Phil R; Bhaduri, Budhendra L

    2013-01-01

    In recent years, uses of high-resolution population distribution databases are increasing steadily for environmental, socioeconomic, public health, and disaster-related research and operations. With the development of daytime population distribution, temporal resolution of such databases has been improved. However, the lack of incorporation of transitional population, namely business and leisure travelers, leaves a significant population unaccounted for within the critical infrastructure networks, such as at transportation hubs. This paper presents two general methodologies for estimating passenger populations in airport and cruise port terminals at a high temporal resolution which can be incorporated into existing population distribution models. The methodologies are geographically scalable and are based on, and demonstrate how, two different transportation hubs with disparate temporal population dynamics can be modeled utilizing publicly available databases including novel data sources of flight activity from the Internet which are updated in near-real time. The airport population estimation model shows great potential for rapid implementation for a large collection of airports on a national scale, and the results suggest reasonable accuracy in the estimated passenger traffic. By incorporating population dynamics at high temporal resolutions into population distribution models, we hope to improve the estimates of populations exposed to or at risk to disasters, thereby improving emergency planning and response, and leading to more informed policy decisions.

  14. Travel Policies & Tips | Photosynthetic Antenna Research Center

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

    Travel Policies & Tips Travel Policies & Tips Please Review PARC's Travel Policies and Tips listed below as well as Washington University's Travel Policy at the following link: WU TRAVEL POLICY Both documents can also be downloaded here: WU Travel Policy.pdf | Travel Policies & Tips.pdf General Supporting documentation is encouraged for all reimbursable expenses, regardless of amount; however, it is only required for individual expenses of $30 or more. Any last-minute changes to the

  15. Code for Calculating Regional Seismic Travel Time

    Energy Science and Technology Software Center (OSTI)

    2009-07-10

    The RSTT software computes predictions of the travel time of seismic energy traveling from a source to a receiver through 2.5D models of the seismic velocity distribution within the Earth. The two primary applications for the RSTT library are tomographic inversion studies and seismic event location calculations. In tomographic inversions studies, a seismologist begins with number of source-receiver travel time observations and an initial starting model of the velocity distribution within the Earth. A forwardmore » travel time calculator, such as the RSTT library, is used to compute predictions of each observed travel time and all of the residuals (observed minus predicted travel time) are calculated. The Earth model is then modified in some systematic way with the goal of minimizing the residuals. The Earth model obtained in this way is assumed to be a better model than the starting model if it has lower residuals. The other major application for the RSTT library is seismic event location. Given an Earth model, an initial estimate of the location of a seismic event, and some number of observations of seismic travel time thought to have originated from that event, location codes systematically modify the estimate of the location of the event with the goal of minimizing the difference between the observed and predicted travel times. The second application, seismic event location, is routinely implemented by the military as part of its effort to monitor the Earth for nuclear tests conducted by foreign countries.« less

  16. Positioner with long travel in two dimensions

    DOE Patents [OSTI]

    Trumper, David L.; Williams, Mark E.

    1997-12-23

    A precision positioning system is provided which provides long travel in two of the linear dimensions, while using non-contact bearings for both a first subassembly which provides long travel in one of the linear dimension and a second subassembly which provides long travel in the second linear dimension. The first or upper subassembly is preferably a magnetic subassembly which, in addition to providing long travel, also compensates or positions in three rotary dimensions and in the third linear dimension. The second subassembly is preferably either an air bearing or magnetic subassembly and is normally used only to provide long travel. Angled surfaces may be provided for magnetic bearings and capacitive or other gap sensing probes may be mounted to the stage and ground flush with the bearing actuators to provide more precise gap measurements.

  17. Traveling-wave device with mass flux suppression (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Traveling-wave device with mass flux suppression Title: Traveling-wave device with mass flux suppression A traveling-wave device is provided with the conventional moving pistons ...

  18. BIOENERGIZEME INFOGRAPHIC CHALLENGE: Travel to the Future with Bioenergy |

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

    Department of Energy Travel to the Future with Bioenergy BIOENERGIZEME INFOGRAPHIC CHALLENGE: Travel to the Future with Bioenergy BIOENERGIZEME INFOGRAPHIC CHALLENGE: Travel to the Future with Bioenergy

  19. NEUP Foreign Travel Request Form | Department of Energy

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

    Form NEUP Foreign Travel Request Form File NEUP Foreign Travel Form 073112.docx More Documents & Publications DOE F 551.1 NEUP Student Travel Request Form HQ FNVA Questionnaire

  20. Better World Club Travel Cool | Open Energy Information

    Open Energy Info (EERE)

    World Club Travel Cool Jump to: navigation, search Name: Better World Club Travel Cool Place: Portland, Oregon Zip: 97209 Product: Travel Cool is the eNewsletter of the Better...

  1. Supplemental Guidance Regarding Compensatory Time Off for Travel |

    Energy Savers [EERE]

    Department of Energy Supplemental Guidance Regarding Compensatory Time Off for Travel Supplemental Guidance Regarding Compensatory Time Off for Travel Questions and answers on issues that supplement the final regulations on compensatory time for travel issued by the Office of Personnel Management. In addition, a sample worksheet is attached to assist travelers in determining and documenting their travel time that may be credited for compensatory time for travel. This information will be

  2. Venue and Travel | Department of Energy

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

    Venue and Travel Venue and Travel Venue and Travel Hilton Anaheim 777 W Convention Way Anaheim, California, 92802 USA TEL: 1-714-750-4321 FAX: 1-714-740-4460 Reserving Your Room For your convenience, a limited room block has been set up at the group rate of $133 per night (plus applicable taxes). Space is limited and will sell out fast. Reservations can be made via the call center 1-877-776-4932 using the group code: SGE or you can book online: SunShot Grand Challenge Summit Room Block.

  3. ORISE: CDC Travelers' Health Mobile App, Designed by ORISE, Gains...

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

    choices while traveling internationally and tasked ORISE with designing iPhone and Android versions. "Nothing is more important to us than the health and safety of travelers,...

  4. DOE Energy Taxation Forum - Travel Fact Sheet | Department of...

    Office of Environmental Management (EM)

    Travel Fact Sheet DOE Energy Taxation Forum - Travel Fact Sheet PDF icon TFS Tax Forum New Orleans 02272012.pdf More Documents & Publications DOE Energy Taxation Forum -...

  5. MONDAY: Secretary Chu Travels to New Jersey and Philadelphia...

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

    MONDAY: Secretary Chu Travels to New Jersey and Philadelphia MONDAY: Secretary Chu Travels to New Jersey and Philadelphia September 24, 2010 - 12:00am Addthis WASHINGTON - On ...

  6. Hotel and Travel Information for the Summit

    Broader source: Energy.gov [DOE]

    The Executive Summit on Wind Research and Development is being held in the Cottonwoods Pavillion at the Hyatt Regency Tamaya Resort and Spa. Here registrants can find summit hotel and travel...

  7. Enabling time travel for the scholarly web

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

    Enabling time travel for the scholarly web Enabling time travel for the scholarly web An international team of information scientists has begun a study to investigate how web links in scientific and other academic articles fail to lead to the resources being referenced. July 16, 2013 Herbert Van de Sompel, a Los Alamos National Laboratory information scientist, describes the information pathway involved in preventing "reference rot" in scientific material linked to the web. Herbert Van

  8. Inspection of the Secretary of Energy`s foreign travel

    SciTech Connect (OSTI)

    1996-10-07

    On December 9, 1995, the Secretary of Energy requested that the Department`s Inspector General (IG) conduct a thorough examination of all Secretarial foreign travel from 1993 to December 1995 to include the purpose of each trip, the activities of each Federal participant in each trip, the funding of each trip, and claims for reimbursements for expenses by Federal trip participants. The Secretary also requested that the review include an assessment of travel authorization, voucher, traveler reimbursement, and auditing systems employed by the Department to identify steps that could be taken to reduce errors and improve accounting oversight. Additionally, the Secretary requested that the Inspector General conduct a thorough examination of the establishment and filling of the Department`s Ombudsman position. The Office of Inspector General (OIG) initiated a review into these matters and assigned primary responsibility for the review to the Office of Inspections. The purpose of this inspection was to conduct a thorough examination of the 16 Secretarial foreign trips from June 1993 to December 1995. This report focuses on the four trade missions because of their extent and cost. We examined a number of Departmental management systems and processes involved in planning and executing the 16 foreign trips. To determine the actual cost of the 16 trips, it was necessary to determine who participated in the trips and to identify the individual travel costs. We were required to perform extensive reviews of records and conduct a large number of interviews because the Department could not provide any specific documents that could accurately account for who actually participated on the 16 trips. Having identified who participated, it was then necessary to examine key aspects of the Department`s management systems. Our report contains 31 recommendations for corrective action.

  9. ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS |

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

    Department of Energy 9: TRAVEL AND TRANSPORTATION RECORDS ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS This schedule covers records documenting the movement of goods and persons under Government orders PDF icon ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS More Documents & Publications ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS (Revision 2) ADMINISTRATIVE RECORDS SCHEDULE 6: ACCOUNTABLE OFFICERS' ACCOUNTS RECORDS

  10. Traveling to Princeton (NEW) - Combustion Energy Frontier Research Center

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

    FAQ » Traveling to Princeton (NEW) Traveling to Princeton (NEW) You may travel to the Princeton University campus by air, car or train. Travel directions and campus maps for Princeton University can be found at http://www.princeton.edu/main/visiting/travel/. Please see campus map for a detailed map of the campus with CEFRC buildings highlighted. By Air http://www.princeton.edu/main/visiting/travel/airports/ By Train From/To Airports http://www.princeton.edu/main/visiting/travel/trains/. By

  11. Light-Duty Vehicle Energy Demand, Demographics, and Travel Behavior

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

    EIA Conference July 15, 2014 | Washington, DC By Trisha Hutchins, Office of Energy Consumption and Efficiency Analysis Light-duty vehicle energy demand, demographics, and travel behavior Examining changes in light-duty vehicle travel trends 2 EIA Conference: Light-duty vehicle energy demand, demographics, and travel behavior July 15, 2014 * Recent data indicate possible structural shift in travel behavior, measured as vehicle miles traveled (VMT) - VMT per licensed driver, vehicles per capita,

  12. New Hire Relocation Travel Information Guide

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

    New Hire Relocation Travel Information Guide This information guide is provided by the CFO Travel Relocation Office to assist you in planning your relocation to Los Alamos. Please contact the Relocation Office at least two to four weeks prior to your relocation to discuss your relocation plans. You can contact the Relocation Office at (505) 665-4484 or by e-mail at relocation@lanl.gov. You must have met all contingencies, if any, of your hire as well as have proper work authorization before the

  13. DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse Gas Emissions

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – A representative of the Waste Isolation Pilot Plant (WIPP) near Carlsbad, N.M., on Tuesday received the Secretary of Energy’s Appreciation Award for her efforts to improve sustainability and reduce travel costs and the number of fleet vehicles.

  14. NNSA Administrator D'Agostino's 2010 Nonproliferation Travel...

    National Nuclear Security Administration (NNSA)

    10 Nonproliferation Travel Blog | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation...

  15. ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS

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

    (Revision 2) | Department of Energy 9: TRAVEL AND TRANSPORTATION RECORDS (Revision 2) ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS (Revision 2) This schedule covers records documenting the movement of goods and persons under Government orders. PDF icon ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS (Revision 2) More Documents & Publications ADMINISTRATIVE RECORDS SCHEDULE 9: TRAVEL AND TRANSPORTATION RECORDS ADMINISTRATIVE RECORDS SCHEDULE 6:

  16. ORISE: Travelers' Health Campaign | How ORISE is Making a Difference

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

    Travelers' Health Campaign Travelers' Health Campaign takes critical messages worldwide Travelers' Health Campaign poster Click image to enlarge Traveling can be a dangerous transmitter of germs, bacteria and viruses such as H1N1. That makes airports, ship docks, train stations and bus depots among the most important places to spread the word about healthy practices and precautions. The Oak Ridge Institute for Science and Education (ORISE) has played a key role in preparing to get the

  17. Jefferson Lab Visitor's Center - Travel Accommodations

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

    Travel Accommodations While visiting or working at JLab there are many options for living accommodations. These options vary depending upon the expected length of stay, transportation available and money allotted for housing expenses. The following information has been compiled to assist in the search for living accommodations near the lab. For further assistance e-mail User Liaison or call 757-269-6388. On-Site Accommodations SURA Residence Facility Off-Site Accommodations Negotiated Lodging

  18. Extension arm for mobile travelers suit case

    DOE Patents [OSTI]

    Byington, Gerald A.

    1999-01-01

    The invention is an apparatus for adjusting a luggage handle in relation to a luggage frame utilized to transport luggage by a traveler. The handle is connected to two extendable and retractable slide tube assemblies, the assemblies allow for the telescoping of the luggage handle to multiple positions in relation to a pair of fixed frame tubes connected to a luggage shell with wheels, to accommodate the height and personal stride of traveler. The luggage handle incorporates triggering buttons that allow ambidextrous and single-handed control of the height of the handle and slide tube assembly in relation to the luggage. The handle and slide tube assembly are connected by interior filaments to pulleys and filaments within two concentric light-weight slide tubes, which are inserted respectively into two fixed frame tubes, to allow a multitude of positions for the slide tubes to lock into the fixed frame tubes. The apparatus can be pushed or pulled by the traveler, and the support shell can accommodate multiple pieces of luggage.

  19. Traveling-wave device with mass flux suppression

    DOE Patents [OSTI]

    Swift, Gregory W.; Backhaus, Scott N.; Gardner, David L.

    2000-01-01

    A traveling-wave device is provided with the conventional moving pistons eliminated. Acoustic energy circulates in a direction through a fluid within a torus. A side branch may be connected to the torus for transferring acoustic energy into or out of the torus. A regenerator is located in the torus with a first heat exchanger located on a first side of the regenerator downstream of the regenerator relative to the direction of the circulating acoustic energy; and a second heat exchanger located on an upstream side of the regenerator. The improvement is a mass flux suppressor located in the torus to minimize time-averaged mass flux of the fluid. In one embodiment, the device further includes a thermal buffer column in the torus to thermally isolate the heat exchanger that is at the operating temperature of the device.

  20. Examining hydrogen transitions.

    SciTech Connect (OSTI)

    Plotkin, S. E.; Energy Systems

    2007-03-01

    This report describes the results of an effort to identify key analytic issues associated with modeling a transition to hydrogen as a fuel for light duty vehicles, and using insights gained from this effort to suggest ways to improve ongoing modeling efforts. The study reported on here examined multiple hydrogen scenarios reported in the literature, identified modeling issues associated with those scenario analyses, and examined three DOE-sponsored hydrogen transition models in the context of those modeling issues. The three hydrogen transition models are HyTrans (contractor: Oak Ridge National Laboratory), MARKAL/DOE* (Brookhaven National Laboratory), and NEMS-H2 (OnLocation, Inc). The goals of these models are (1) to help DOE improve its R&D effort by identifying key technology and other roadblocks to a transition and testing its technical program goals to determine whether they are likely to lead to the market success of hydrogen technologies, (2) to evaluate alternative policies to promote a transition, and (3) to estimate the costs and benefits of alternative pathways to hydrogen development.

  1. Researchers test novel power system for space travel

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

    Power system for space travel Researchers test novel power system for space travel The research team recently demonstrated the first use of a heat pipe to cool a small nuclear reactor and power a Stirling engine. November 26, 2012 John Bounds of Los Alamos National Laboratory's Advanced Nuclear Technology Division makes final adjustments on the DUFF experiment, a demonstration of a simple, robust fission reactor prototype that could be used as a power system for space travel. DUFF is the first

  2. NNSA Administrator D'Agostino's Safeguards Conference Travel...

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

    Conference Travel Blog Follow the second international meeting in Tokai-mura, Ibaraki Japan This week, NNSA Administrator Thomas D'Agostino attended the second international...

  3. PIA - Foreign Travel Management System (FTMS) | Department of...

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

    Foreign Travel Management System (FTMS) More Documents & Publications PIA - INL PeopleSoft - Human Resource System PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM BUSINESS ENCLAVE

  4. NNSA Administrator D'Agostino's 2009 IAEA Travel Blog | National...

    National Nuclear Security Administration (NNSA)

    09 IAEA Travel Blog | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the...

  5. Brain teasers traveling exhibit opens at Los Alamos National...

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

    Brain teasers exhibit opens at museum Brain Teasers traveling exhibit opens at Los Alamos National Laboratory's Bradbury Science Museum The interactive exhibit is a collection of ...

  6. DOE Honors WIPP Representative for Cutting Travel Costs, Greenhouse...

    Office of Environmental Management (EM)

    document reviews with regulators instead of meeting in person and reduced rental car usage by standardizing travel arrangements so that only one rental car is necessary per...

  7. Secretary Bodman Travels to Russia to Advance Energy Security...

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

    ... Business leaders planning to attend the meeting represent a broad spectrum of economic issues, including banking, customs, taxation, licensing and others. Secretary Bodman traveled ...

  8. Petroleum Reduction Strategies to Reduce Vehicle Miles Traveled

    Broader source: Energy.gov [DOE]

    For reducing greenhouse gas emissions, the table below describes petroleum reduction strategies to reduce vehicle miles traveled, as well as guidance and best practices for each strategy.

  9. Solar Decathlon: How far did they travel? | Department of Energy

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

    Decathlon Journeys Visualizing the distances that each Solar Decathlon house travelled Click competitors to toggle their journeys on and off. All routes and distances are...

  10. Secretary Bodman Travels to Saudi Arabia to Discuss Global Energy...

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

    business leaders in Jordan. He will also travel to the United Arab Emirates, Qatar, and Egypt, to continue dialogues with global leaders, enhance the United States' relationship...

  11. Travelers Rest, South Carolina: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Travelers Rest, South Carolina: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.9676167, -82.4434548 Show Map Loading map......

  12. Statement by DOE Spokesperson on Secretary Moniz's Travel to...

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

    travel to Geneva on Saturday to join Secretary Kerry in continued negotiations with Iran over its nuclear program. Department of Energy officials have consistently been...

  13. Tiny travelers from deep space could assist in healing Fukushima...

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

    Fukushima Daiichi nuclear reactors Tiny travelers from deep space could assist in healing ... information from inside the damaged cores of the Fukushima Daiichi nuclear reactors. ...

  14. Transitioning Kentucky Off Oil: An Interview with Clean Cities Coordinator

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

    Melissa Howell | Department of Energy Transitioning Kentucky Off Oil: An Interview with Clean Cities Coordinator Melissa Howell Transitioning Kentucky Off Oil: An Interview with Clean Cities Coordinator Melissa Howell June 18, 2013 - 4:12pm Addthis With the help of Kentucky Clean Fuels Coalition, Mammoth Cave National Park was the first National Park fleet to use 100 percent alternative fuel. The Global Electric Motorcar (pictured above) is used by park rangers who need to travel between the

  15. Design and fabrication of a traveling-wave muffin-tin accelerating structure at 90 GHz

    SciTech Connect (OSTI)

    Chou, P.J.; Bowden, G.B.; Copeland, M.R.; Menegat, A.; Siemann, R.H.; Henke, H.

    1997-05-01

    A prototype of a muffin-tin accelerating structure operating at 32 times the SLAC frequency (2.856 GHz) was built for research in high gradient acceleration. A traveling-wave design with single input and output feeds was chosen for the prototype which was fabricated by wire electrodischarge machining. Features of the mechanical design for the prototype are described. Design improvements are presented including considerations of cooling and vacuum.

  16. Stable operating regime for traveling wave devices

    DOE Patents [OSTI]

    Carlsten, Bruce E.

    2000-01-01

    Autophase stability is provided for a traveling wave device (TWD) electron beam for amplifying an RF electromagnetic wave in walls defining a waveguide for said electromagnetic wave. An off-axis electron beam is generated at a selected energy and has an energy noise inherently arising from electron gun. The off-axis electron beam is introduced into the waveguide. The off-axis electron beam is introduced into the waveguide at a second radius. The waveguide structure is designed to obtain a selected detuning of the electron beam. The off-axis electron beam has a velocity and the second radius to place the electron beam at a selected distance from the walls defining the waveguide, wherein changes in a density of the electron beam due to the RF electromagnetic wave are independent of the energy of the electron beam to provide a concomitant stable operating regime relative to the energy noise.

  17. Which Road to Travel? | Y-12 National Security Complex

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

    Which Road to Travel? Which Road to Travel? Posted: July 16, 2013 - 6:06pm There's no question which road (crosswalk) to travel when you park in the North Portal parking lot. Thanks to the recent restriping of the parking lot, the crosswalk and parking spaces are clearly marked. Earlier this year, the Employee-Driven Safety Campaign was created as a way to easily submit safety issues as we continue pursuing Safety for Life and our Voluntary Protection Program focus. Y-12 is a large site, so it

  18. Urban structure and its influence on vehicle travel reduction strategies

    SciTech Connect (OSTI)

    Southworth, F.; Jones, D.W.; Harrison, G.

    1996-04-01

    This paper examines what is known about the relationship between urban spatial structure (i.e. the arrangement of residential, industrial, commercial, recreational and municipal buildings and land lots) and urban travel. The first section provides an overview of the empirical evidence for relationships between urban spatial structure and travel in the United States. Section two focuses on the barriers to and opportunities for reducing the use of automobiles and light trucks in urban areas. The final section offers a policy-point-of-impact perspective on the sort of instruments governments have at their disposal for reducing vehicular travel.

  19. Secretary Bodman to Travel to the Middle East to Advance International...

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

    Travel to the Middle East to Advance International Energy Cooperation Secretary Bodman to Travel to the Middle East to Advance International Energy Cooperation January 10, 2008 - ...

  20. GE, NASA Work to Relaunch Supersonic Air Travel | GE Global Research

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

    Supporting NASA's efforts to Relaunch Commercial Supersonic Air Travel Click to email this ... GE Supporting NASA's efforts to Relaunch Commercial Supersonic Air Travel Awarded 2- year ...

  1. Final Report Phase I Study to Characterize the Market Potential for Non-Motorized Travel

    SciTech Connect (OSTI)

    Hwang, Ho-Ling; Reuscher, Tim; Wilson, Daniel W; Schmoyer, Richard L

    2012-06-01

    The idea of livable communities suggests that people should have the option to utilize non-motorized travel (NMT), specifically walking and bicycling, to conduct their daily tasks. Forecasting personal travel by walk and bike is necessary as part of regional transportation planning, and requires fine detail not only about individual travel, but also on transportation and neighborhood infrastructure. In an attempt to characterize the 'market' potential for NMT, the Office of Planning, Federal Highway Administration (FHWA) funded the Center for Transportation Analysis (CTA) of the Oak Ridge National Laboratory (ORNL) to conduct a study. The objectives of this effort were to identify factors that influence communities to walk and bike and to examine why, or why not, travelers walk and bike in their communities. This study relied on information collected under the 2009 National Household Travel Survey (NHTS) as the major source of data, and was supplemented with data from the American Community Survey (ACS), educational survey, health, employment, and others. Initial statistical screening methods were applied to sort through over 400 potential predictor variables, and examined with various measures (e.g., walk trip per person, walk mileage per person, bike trip per person, bike mileage per person) as the dependent variables. The best geographic level of detail used in the modeling for this study was determined to be the Census block group level for walking and Census tract level for biking. The need for additional supplemental private data (i.e., Walk Scores and Nielsen employment data), and geospatial information that reflects land use and physical environments, became evident after an examination of findings from the initial screening models. To be feasible, in terms of costs and time, the geographic scale of the study region was scaled down to nine selected NHTS add-on regions. These regions were chosen based on various criteria including transit availability, population size, and a mix of geographic locations across the nation. Given the similarities in modeling results from walk trips and walk mileages, additional modeling efforts conducted under the later part of this study were focused on walk trips per person. Bike models were limited only with the stepwise logistic models using Census tracts in the selected regions. Due to NHTS sampling limitations, only about 12% of these tracts have bike trips recorded from NHTS sampled households. The modeling with NHTS bike data proved to be more challenging and time consuming than what was anticipated. Along with the late arrival of Nielsen employment data, the project team had to limit the modeling effort to focus on walking. Therefore, the final modeling and discriminant analysis was conducted only for walking trips.

  2. Development of Site Transition Plan, Use of the Site Transition...

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

    Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition Development of Site Transition Plan, Use of the Site Transition Framework, ...

  3. U.S. Department of Energy Travel Manual

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

    2002-09-04

    To supplement information contained in the Federal Travel Regulation (FTR) by providing further clarification and establishing Department of Energy (DOE) policy on matters that the FTR left to Agency discretion. Canceled by DOE M 552.1-1A.

  4. U.S. Department of Energy Travel Manual

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

    2006-02-17

    The Manual supplements information in the Federal Travel Regulation (FTR) by providing further clarification and establishing Department of Energy (DOE) policy on matters that the FTR left to Agency discretion. Supersedes DOE M 552.1-1.

  5. Secretary Chu will Travel to China to Highlight Clean Energy...

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

    WASHINGTON - U.S. Energy Secretary Steven Chu will travel to China from May 24th to 28th to highlight the benefit of U.S.-China partnerships and cooperation in the clean energy ...

  6. TEE-0068- In the Matter of Bowlin Travel Centers, Inc.

    Broader source: Energy.gov [DOE]

    Bowlin Travel Centers, Inc., filed an Application for Exception with the Department of Energy’s (DOE) Office of Hearings and Appeals (OHA). The firm requests permanent relief from its requirement...

  7. ORISE: CDC Travelers' Health Team Receives Innovation Award for...

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

    CDC Travelers' Health Team Receives Innovation Award for Website Redesign ORISE serves as lead redesign contractor on award-winning website redesign for the CDC How ORISE is Making...

  8. The Department of Energy's Management of Foreign Travel, IG-0872

    Energy Savers [EERE]

    The Department of Energy's Management of Foreign Travel DOE/IG-0872 October 2012 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 October 16, 2012 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Management Alert: "The Department of Energy's Management of Foreign Travel" INTRODUCTION The Department of Energy and its workforce of 116,000 Federal and contractor

  9. ORISE: CDC Travelers' Health Team Receives Innovation Award for Website

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

    Redesign CDC Travelers' Health Team Receives Innovation Award for Website Redesign ORISE serves as lead redesign contractor on award-winning website redesign for the CDC How ORISE is Making a Difference The Communication and Education Team of the Travelers' Health Branch of the Centers for Disease Control and Prevention (CDC) has received the CDC Director's Award for Innovation. Dr. Thomas R. Frieden, Director, CDC, bestowed the award in May in recognition of excellent work in the redesign

  10. NNSA Deputy Administrator Creedon Travels to China | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration Deputy Administrator Creedon Travels to China Monday, April 4, 2016 - 3:46pm Members of the U.S. delegation, led by Secretary of Energy Ernest Moniz, were met by Chinese Vice Premier Ma Kai at the Center of Excellence on Nuclear Security in Beijing. In March, National Nuclear Security Administration (NNSA) Principal Deputy Administrator Madelyn Creedon traveled to China to participate in activities related to NNSA's cooperative engagement with various Chinese

  11. Transition Metal Switchable Mirror

    ScienceCinema (OSTI)

    None

    2010-01-08

    The switchable-mirrors technology was developed by Tom Richardson and Jonathan Slack of Berkeley Lab's Environmental Energy Technologies Division. By using transition metals rather than the rare earth metals used in the first metal-hydride switchable mirrors, Richardson and Slack were able to lower the cost and simplify the manufacturing process. Energy performance is improved as well, because the new windows can reflect or transmit both visible and infrared light. Besides windows for offices and homes, possible applications include automobile sunroofs, signs and displays, aircraft windows, and spacecraft.

  12. Transition Metal Switchable Mirror

    ScienceCinema (OSTI)

    None

    2013-05-29

    The switchable-mirrors technology was developed by Tom Richardson and Jonathan Slack of Berkeley Lab's Environmental Energy Technologies Division. By using transition metals rather than the rare earth metals used in the first metal-hydride switchable mirrors, Richardson and Slack were able to lower the cost and simplify the manufacturing process. Energy performance is improved as well, because the new windows can reflect or transmit both visible and infrared light. Besides windows for offices and homes, possible applications include automobile sunroofs, signs and displays, aircraft windows, and spacecraft. More information at: http://windows.lbl.gov/materials/chromogenics/default.htm

  13. Safety evaluation of a hydrogen fueled transit bus

    SciTech Connect (OSTI)

    Coutts, D.A.; Thomas, J.K.; Hovis, G.L.; Wu, T.T.

    1997-12-31

    Hydrogen fueled vehicle demonstration projects must satisfy management and regulator safety expectations. This is often accomplished using hazard and safety analyses. Such an analysis has been completed to evaluate the safety of the H2Fuel bus to be operated in Augusta, Georgia. The evaluation methods and criteria used reflect the Department of Energy`s graded approach for qualifying and documenting nuclear and chemical facility safety. The work focused on the storage and distribution of hydrogen as the bus motor fuel with emphases on the technical and operational aspects of using metal hydride beds to store hydrogen. The safety evaluation demonstrated that the operation of the H2Fuel bus represents a moderate risk. This is the same risk level determined for operation of conventionally powered transit buses in the United States. By the same criteria, private passenger automobile travel in the United States is considered a high risk. The evaluation also identified several design and operational modifications that resulted in improved safety, operability, and reliability. The hazard assessment methodology used in this project has widespread applicability to other innovative operations and systems, and the techniques can serve as a template for other similar projects.

  14. New York Household Travel Patterns: A Comparison Analysis

    SciTech Connect (OSTI)

    Hu, Patricia S; Reuscher, Tim

    2007-05-01

    In 1969, the U. S. Department of Transportation began collecting detailed data on personal travel to address various transportation planning issues. These issues range from assessing transportation investment programs to developing new technologies to alleviate congestion. This 1969 survey was the birth of the Nationwide Personal Transportation Survey (NPTS). The survey was conducted again in 1977, 1983, 1990 and 1995. Longer-distance travel was collected in 1977 and 1995. In 2001, the survey was renamed to the National Household Travel Survey (NHTS) and collected both daily and longer-distance trips in one survey. In addition to the number of sample households that the national NPTS/NHTS survey allotted to New York State (NYS), the state procured an additional sample of households in both the 1995 and 2001 surveys. In the 1995 survey, NYS procured an addition sample of more than 9,000 households, increasing the final NY NPTS sample size to a total of 11,004 households. Again in 2001, NYS procured 12,000 additional sample households, increasing the final New York NHTS sample size to a total of 13,423 households with usable data. These additional sample households allowed NYS to address transportation planning issues pertinent to geographic areas significantly smaller than for what the national NPTS and NHTS data are intended. Specifically, these larger sample sizes enable detailed analysis of twelve individual Metropolitan Planning Organizations (MPOs). Furthermore, they allowed NYS to address trends in travel behavior over time. In this report, travel data for the entire NYS were compared to those of the rest of the country with respect to personal travel behavior and key travel determinants. The influence of New York City (NYC) data on the comparisons of the state of New York to the rest of the country was also examined. Moreover, the analysis examined the relationship between population density and travel patterns, and the similarities and differences among New York MPOs. The 1995 and 2001 survey data make it possible to examine and identify travel trends over time. This report does not address, however, the causes of the differences and/or trends.

  15. Foreign_Travel_Management_System_(FTMS).pdf

    Energy Savers [EERE]

    Focus Areas Focus Areas Safety With this focus on cleanup completion and risk reducing results, safety still remains the utmost priority. EM will continue to maintain and demand the highest safety performance. All workers deserve to go home as healthy as they were when they came to the job in the morning. There is no schedule or milestone worth any injury to the work force. Project Management EM is increasing its concentration on project management to improve its overall performance toward

  16. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary...

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

    Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results This...

  17. Alameda-Contra Costa Transit District Fuel Cell Transit Buses...

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

    PDF icon 42249.pdf More Documents & Publications Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results SunLine Transit Agency ...

  18. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell...

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

    Report Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report This report describes operations at Alameda-Contra Costa Transit district ...

  19. Secretary Chu to Travel to Houston Today | Department of Energy

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

    Travel to Houston Today Secretary Chu to Travel to Houston Today July 8, 2010 - 12:00am Addthis Washington, D.C. - At the direction of President Obama, as part of the Administration's ongoing oil spill response efforts U.S. Energy Secretary Steven Chu is making his fifth trip to Houston today to continue to help identify strategies for containing the oil and ultimately killing the well. Secretary Chu and his scientific team are coordinating their work with National Incident Commander Admiral

  20. Improved ion source

    DOE Patents [OSTI]

    Leung, K.N.; Ehlers, K.W.

    1982-05-04

    A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species,

  1. Apparatus and method for measuring and imaging traveling waves

    DOE Patents [OSTI]

    Telschow, Kenneth L.; Deason, Vance A.

    2001-01-01

    An apparatus is provided for imaging traveling waves in a medium. The apparatus includes a vibration excitation source configured to impart traveling waves within a medium. An emitter is configured to produce two or more wavefronts, at least one wavefront modulated by a vibrating medium. A modulator is configured to modulate another wavefront in synchronization with the vibrating medium. A sensing media is configured to receive in combination the modulated one wavefront and the another wavefront and having a detection resolution within a limited bandwidth. The another wavefront is modulated at a frequency such that a difference frequency between the one wavefront and the another wavefront is within a response range of the sensing media. Such modulation produces an image of the vibrating medium having an output intensity that is substantially linear with small physical variations within the vibrating medium for all vibration frequencies above the sensing media's response bandwidth. A detector is configured to detect an image of traveling waves in the vibrating medium resulting from interference between the modulated one wavefront and the another wavefront when combined in association with the sensing media. The traveling wave can be used to characterize certain material properties of the medium. Furthermore, a method is provided for imaging and characterizing material properties according to the apparatus.

  2. Flow calculations for Yucca Mountain groundwater travel time (GWTT-95)

    SciTech Connect (OSTI)

    Altman, S.J.; Arnold, B.W.; Barnard, R.W.; Barr, G.E.; Ho, C.K.; McKenna, S.A.; Eaton, R.R.

    1996-09-01

    In 1983, high-level radioactive waste repository performance requirements related to groundwater travel time were defined by NRC subsystem regulation 10 CFR 60.113. Although DOE is not presently attempting to demonstrate compliance with that regulation, understanding of the prevalence of fast paths in the groundwater flow system remains a critical element of any safety analyses for a potential repository system at Yucca Mountain, Nevada. Therefore, this analysis was performed to allow comparison of fast-path flow against the criteria set forth in the regulation. Models developed to describe the conditions for initiation, propagation, and sustainability of rapid groundwater movement in both the unsaturated and saturated zones will form part of the technical basis for total- system analyses to assess site viability and site licensability. One of the most significant findings is that the fastest travel times in both unsaturated and saturated zones are in the southern portion of the potential repository, so it is recommended that site characterization studies concentrate on this area. Results support the assumptions regarding the importance of an appropriate conceptual model of groundwater flow and the incorporation of heterogeneous material properties into the analyses. Groundwater travel times are sensitive to variation/uncertainty in hydrologic parameters and in infiltration flux at upper boundary of the problem domain. Simulated travel times are also sensitive to poorly constrained parameters of the interaction between flow in fractures and in the matrix.

  3. Topological horseshoes in travelling waves of discretized nonlinear wave equations

    SciTech Connect (OSTI)

    Chen, Yi-Chiuan; Chen, Shyan-Shiou; Yuan, Juan-Ming

    2014-04-15

    Applying the concept of anti-integrable limit to coupled map lattices originated from space-time discretized nonlinear wave equations, we show that there exist topological horseshoes in the phase space formed by the initial states of travelling wave solutions. In particular, the coupled map lattices display spatio-temporal chaos on the horseshoes.

  4. Fact #640: September 13, 2010 Monthly Trends in Vehicle Miles of Travel

    Broader source: Energy.gov [DOE]

    Vehicle travel in the U.S. varies by month. There are many reasons for this, including the fact that some months are shorter than others. The vehicle miles of travel (VMT) recorded in February is...

  5. Fact #552: January 5, 2009 Vehicle Miles of Travel by Region

    Broader source: Energy.gov [DOE]

    Total vehicle miles of travel (VMT) in the U.S. have declined from 2007 to 2008. The latest data available, September 2008, shows a 4.4% decline in travel that varies by region. Comparing September...

  6. Fact #842: October 13, 2014 Vehicles and Vehicle Travel Trends have Changed Since 2008

    Broader source: Energy.gov [DOE]

    As the U.S. population has doubled from 1950 to 2012, the number of vehicles has grown nearly 6-fold and vehicle travel even more than that. The number of vehicles and vehicle travel peaked in 2007...

  7. Secretaries Chu and Locke to Travel to China Next Week | Department...

    Office of Environmental Management (EM)

    Locke to Travel to China Next Week Secretaries Chu and Locke to Travel to China Next Week July 6, 2009 - 12:00am Addthis WASHINGTON -- Energy Secretary Steven Chu and Commerce ...

  8. Will We Drive Less? A White Paper on U.S. Light Duty Travel ...

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

    vehicle travel in the U.S. and other developed nations, with VMT likely stagnating or dropping in the future. This report examines a variety of issues surrounding light-duty travel...

  9. Fact #729: May 28, 2012 Secondary Household Vehicles Travel Fewer Miles

    Broader source: Energy.gov [DOE]

    When a household has more than one vehicle, the secondary vehicles travel fewer miles than the primary vehicle. In a two-vehicle household, the second vehicle travels less than half of the miles...

  10. ORISE: CDC Travelers' Health Mobile App, Designed by ORISE, Gains Attention

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

    on Multiple Websites Can I Eat This? Mobile App Helps International Travelers Make Safe Dining Choices CDC Travelers' Health app, designed by ORISE, gains attention on multiple websites How ORISE is Making a Difference The Can I Eat This? mobile app, which ORISE staff helped develop for the U.S. Centers for Disease Control and Prevention, has been receiving positive feedback from food and travel experts. The app, recently released by the CDC's Travelers' Health Branch, earned a positive

  11. NEW - DOE O 551.1D Chg 1 (PgChg), Official Foreign Travel

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

    The requirement to surrender official passports is considered burdensome to travelers and will be removed as a requirement and replaced with a process that requires travelers be responsible for safeguarding their own official passports. In conjunction with this revision, administrative changes will be made to update the title of the Office of Travel Management.

  12. Florida County Seeks to Reduce Emissions and Improve Traffic

    Broader source: Energy.gov [DOE]

    St. Johns County, Florida is tackling its traffic-timing problem with a little help from an Energy Department Energy Efficiency and Conservation Block grant. The county will use the grant to improve traffic flow by re-synchronizing signals at five major road segments. In total, 23 traffic signals will be retimed and synchronized, resulting in lower fuel consumption, shorter travel times, increased travel speed, less stopping and less engine idling.

  13. Gas turbine combustor transition

    DOE Patents [OSTI]

    Coslow, B.J.; Whidden, G.L.

    1999-05-25

    A method is described for converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit. 7 figs.

  14. Gas turbine combustor transition

    DOE Patents [OSTI]

    Coslow, Billy Joe; Whidden, Graydon Lane

    1999-01-01

    A method of converting a steam cooled transition to an air cooled transition in a gas turbine having a compressor in fluid communication with a combustor, a turbine section in fluid communication with the combustor, the transition disposed in a combustor shell and having a cooling circuit connecting a steam outlet and a steam inlet and wherein hot gas flows from the combustor through the transition and to the turbine section, includes forming an air outlet in the transition in fluid communication with the cooling circuit and providing for an air inlet in the transition in fluid communication with the cooling circuit.

  15. Traveling Electrons in Loosely Bound Layers | Argonne National Laboratory

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

    Traveling Electrons in Loosely Bound Layers September 24, 2015 Tweet EmailPrint Extremely large magnetoresistance (XMR) was recently discovered in WTe2, triggering extensive research on this material regarding the XMR origin. Since WTe2 is a layered compound with metal layers sandwiched between adjacent insulating chalcogenide layers, this material has been considered to be electronically two-dimensional. Here a team of users from Argonne's Materials Science Division and Northern Illinois

  16. Watching Spins Travel across Borders | Stanford Synchrotron Radiation

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

    Lightsource Watching Spins Travel across Borders Wednesday, September 30, 2015 Spintronics is a field that keeps both scientists and engineers excited from a fundamental physics and applications perspective. But what is "spintronics" exactly? In order to understand this new field of magnetism research, it is necessary to take a step back and revisit conventional electronics. For almost a century, electronic devices - starting with the early vacuum tubes - have used the charge of

  17. IMPROVED log(gf) VALUES FOR LINES OF Ti I AND ABUNDANCE DETERMINATIONS IN THE PHOTOSPHERES OF THE SUN AND METAL-POOR STAR HD 84937 (ACCURATE TRANSITION PROBABILITIES FOR Ti I)

    SciTech Connect (OSTI)

    Lawler, J. E.; Guzman, A.; Wood, M. P.; Sneden, C.; Cowan, J. J. E-mail: adrianaguzman2014@u.northwestern.edu E-mail: chris@verdi.as.utexas.edu

    2013-04-01

    New atomic transition probability measurements for 948 lines of Ti I are reported. Branching fractions from Fourier transform spectra and from spectra recorded using a 3 m echelle spectrometer are combined with published radiative lifetimes from laser-induced fluorescence measurements to determine these transition probabilities. Generally good agreement is found in comparisons to the NIST Atomic Spectra Database. The new Ti I data are applied to re-determine the Ti abundance in the photospheres of the Sun and metal-poor star HD 84937 using many lines covering a range of wavelength and excitation potential to explore possible non-local thermal equilibrium effects. The variation of relative Ti/Fe abundance with metallicity in metal-poor stars observed in earlier studies is supported in this study.

  18. Molten metal feed system controlled with a traveling magnetic field

    DOE Patents [OSTI]

    Praeg, Walter F.

    1991-01-01

    A continuous metal casting system in which the feed of molten metal is controlled by means of a linear induction motor capable of producing a magnetic traveling wave in a duct that connects a reservoir of molten metal to a caster. The linear induction motor produces a traveling magnetic wave in the duct in opposition to the pressure exerted by the head of molten metal in the reservoir so that p.sub.c =p.sub.g -p.sub.m where p.sub.c is the desired pressure in the caster, p.sub.g is the gravitational pressure in the duct exerted by the force of the head of molten metal in the reservoir, and p.sub.m is the electromagnetic pressure exerted by the force of the magnetic field traveling wave produced by the linear induction motor. The invention also includes feedback loops to the linear induction motor to control the casting pressure in response to measured characteristics of the metal being cast.

  19. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell...

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

    (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC ...

  20. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell...

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

    Report - Appendices Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report - Appendices This report describes operations at ...

  1. Travel determinants and multi-scale transferability of national activity patterns to local populations

    SciTech Connect (OSTI)

    Henson, Kriste M; Gou; ias, Konstadinos G

    2010-11-30

    The ability to transfer national travel patterns to a local population is of interest when attempting to model megaregions or areas that exceed metropolitan planning organization (MPO) boundaries. At the core of this research are questions about the connection between travel behavior and land use, urban form, and accessibility. As a part of this process, a group of land use variables have been identified to define activity and travel patterns for individuals and households. The 2001 National Household Travel Survey (NHTS) participants are divided into categories comprised of a set of latent cluster models representing persons, travel, and land use. These are compared to two sets of cluster models constructed for two local travel surveys. Comparison of means statistical tests are used to assess differences among sociodemographic groups residing in localities with similar land uses. The results show that the NHTS and the local surveys share mean population activity and travel characteristics. However, these similarities mask behavioral heterogeneity that are shown when distributions of activity and travel behavior are examined. Therefore, data from a national household travel survey cannot be used to model local population travel characteristics if the goal to model the actual distributions and not mean travel behavior characteristics.

  2. Verification of the helioseismology travel-time measurement technique and the inversion procedure for sound speed using artificial data

    SciTech Connect (OSTI)

    Parchevsky, K. V.; Zhao, J.; Hartlep, T.; Kosovichev, A. G.

    2014-04-10

    We performed three-dimensional numerical simulations of the solar surface acoustic wave field for the quiet Sun and for three models with different localized sound-speed perturbations in the interior with deep, shallow, and two-layer structures. We used the simulated data generated by two solar acoustics codes that employ the same standard solar model as a background model, but utilize different integration techniques and different models of stochastic wave excitation. Acoustic travel times were measured using a time-distance helioseismology technique, and compared with predictions from ray theory frequently used for helioseismic travel-time inversions. It is found that the measured travel-time shifts agree well with the helioseismic theory for sound-speed perturbations, and for the measurement procedure with and without phase-speed filtering of the oscillation signals. This testing verifies the whole measuring-filtering-inversion procedure for static sound-speed anomalies with small amplitude inside the Sun outside regions of strong magnetic field. It is shown that the phase-speed filtering, frequently used to extract specific wave packets and improve the signal-to-noise ratio, does not introduce significant systematic errors. Results of the sound-speed inversion procedure show good agreement with the perturbation models in all cases. Due to its smoothing nature, the inversion procedure may overestimate sound-speed variations in regions with sharp gradients of the sound-speed profile.

  3. Transit Users Group Supports Transit Agencies with Natural Gas Buses

    SciTech Connect (OSTI)

    Not Available

    2002-04-01

    Fact sheet describes the benefits of the Transit Users Group, which supports transit groups with compressed natural gas (CNG) buses.

  4. Secretary Bodman Travels to the Middle East | Department of Energy

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

    the Middle East Secretary Bodman Travels to the Middle East November 10, 2005 - 2:22pm Addthis Four-nation swing to emphasize domestic energy needs and goals WASHINGTON, DC - Secretary of Energy Samuel W. Bodman embarked upon a four-nation tour through the Middle East to enhance the United States' relationship with major oil-producing nations, promote economic liberalization and increased foreign investment in the region, and reaffirm U.S. energy policy goals. "Both consumers and producers

  5. Dual variational principles for nonlinear traveling waves in multifluid plasmas

    SciTech Connect (OSTI)

    Webb, G. M.; McKenzie, J. F.; Mace, R. L.; Ko, C. M.; Zank, G. P.

    2007-08-15

    A Hamiltonian description of nonlinear, obliquely propagating traveling waves in a charge neutral, electron-proton, multifluid plasma is developed. The governing equations are written as a dual spatial Hamiltonian system. In the first formulation, the Hamiltonian is identified with the longitudinal, x-momentum flux integral P{sub x}=const, in which the energy integral {epsilon}={epsilon}{sub 0} acts as a constraint, and the Hamiltonian evolution operator is d/dx, where x is the position coordinate in the wave frame. In the second Hamiltonian formulation, the Hamiltonian is proportional to the conserved energy integral {epsilon}, in which the momentum integral P{sub x}=const acts as a constraint, and the Hamiltonian evolution operator d/d{tau}=u{sub x}d/dx is the Lagrangian time derivative where u{sub x} is the x component of the electron and proton fluids. The analysis is facilitated by using the de Hoffman-Teller frame of magnetohydrodynamic shock theory to simplify the transverse electron and proton momentum equations. The system is exactly integrable in cases in which the total transverse momentum fluxes of the system are zero in the de Hoffman-Teller frame. The implications of this constraint for the Alfven Mach number of the traveling wave are discussed. The physical conditions for the formation of whistler oscillitons based on the whistler dispersion equation are discussed.

  6. Traveling waves and their tails in locally resonant granular systems

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

    Xu, H.; Kevrekidis, P. G.; Stefanov, A.

    2015-04-22

    In the present study, we revisit the theme of wave propagation in locally resonant granular crystal systems, also referred to as mass-in-mass systems. We use three distinct approaches to identify relevant traveling waves. In addition, the first consists of a direct solution of the traveling wave problem. The second one consists of the solution of the Fourier tranformed variant of the problem, or, more precisely, of its convolution reformulation (upon an inverse Fourier transform) in real space. Finally, our third approach will restrict considerations to a finite domain, utilizing the notion of Fourier series for important technical reasons, namely themore » avoidance of resonances, which will be discussed in detail. All three approaches can be utilized in either the displacement or the strain formulation. Typical resulting computations in finite domains result in the solitary waves bearing symmetric non-vanishing tails at both ends of the computational domain. Importantly, however, a countably infinite set of anti-resonance conditions is identified for which solutions with genuinely rapidly decaying tails arise.« less

  7. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses:

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

    Third Evaluation Report | Department of Energy Report Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location. PDF icon 43545-1.pdf More Documents & Publications SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report SunLine Transit Agency Hydrogen-Powered Transit

  8. Site Transition Guidance

    Office of Environmental Management (EM)

    Site Transition Guidance March 2010 Office of Environmental Management U.S. Department of Energy Washington D. C. 20585 Standard Review Plan (SRP) Technical Framework for EM...

  9. Hydrogen Transition Infrastructure Analysis

    SciTech Connect (OSTI)

    Melendez, M.; Milbrandt, A.

    2005-05-01

    Presentation for the 2005 U.S. Department of Energy Hydrogen Program review analyzes the hydrogen infrastructure needed to accommodate a transitional hydrogen fuel cell vehicle demand.

  10. Secretary Chu To Travel to Scotland and Ireland | Department of Energy

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

    To Travel to Scotland and Ireland Secretary Chu To Travel to Scotland and Ireland November 1, 2010 - 12:00am Addthis Washington, D.C. - This week, Secretary Chu will travel to Scotland and Ireland where he will meet with government and academic leaders, as well as American and Irish business leaders who are engaged in clean energy industries. Both Scotland and Ireland share similar energy challenges and resources with the United States, including significant offshore wind energy potential. These

  11. Energy Secretary Bodman Travels to Moscow, Baku, Kiev to Discuss Energy and

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

    Nuclear Security | Department of Energy Travels to Moscow, Baku, Kiev to Discuss Energy and Nuclear Security Energy Secretary Bodman Travels to Moscow, Baku, Kiev to Discuss Energy and Nuclear Security May 20, 2005 - 12:49pm Addthis Trip Will Focus on World Energy Security, Energy Resource Development, and Nuclear Nonproliferation WASHINGTON, DC -- Secretary of Energy Samuel Bodman next week will travel to Moscow, Russia; Baku, Azerbaijan; and Kiev, Ukraine, where he will hold discussions

  12. AC Transit | Department of Energy

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

    Technology Validation » AC Transit AC Transit AC Transit logo AC Transit (or the Alameda-Contra Costa Transit District) is based in Oakland, California, and provides transportation services to the East Bay of San Francisco. The 360-square-mile service area includes 13 cities and adjacent unincorporated areas in Alameda and Contra Costa counties. AC Transit's approximately 638 vehicles serve more than 65 million annual passengers. Photo of zero emission hydrogen fuel cell bus at AC Transit.

  13. Federal Transit Administration-National Transit Database (NTD...

    Open Energy Info (EERE)

    Type: Dataset User Interface: Website Website: www.ntdprogram.govntdprogram Cost: Free Language: English Federal Transit Administration-National Transit Database (NTD)...

  14. Oligocyclopentadienyl transition metal complexes

    SciTech Connect (OSTI)

    de Azevedo, Cristina G.; Vollhardt, K. Peter C.

    2002-01-18

    Synthesis, characterization, and reactivity studies of oligocyclopentadienyl transition metal complexes, namely those of fulvalene, tercyclopentadienyl, quatercyclopentadienyl, and pentacyclopentadienyl(cyclopentadienyl) are the subject of this account. Thermal-, photo-, and redox chemistries of homo- and heteropolynuclear complexes are described.

  15. Alternative fuel transit buses

    SciTech Connect (OSTI)

    Motta, R.; Norton, P.; Kelly, K.

    1996-10-01

    The National Renewable Energy Laboratory (NREL) is a U.S. Department of Energy (DOE) national laboratory; this project was funded by DOE. One of NREL`s missions is to objectively evaluate the performance, emissions, and operating costs of alternative fuel vehicles so fleet managers can make informed decisions when purchasing them. Alternative fuels have made greater inroads into the transit bus market than into any other. Each year, the American Public Transit Association (APTA) surveys its members on their inventory and buying plans. The latest APTA data show that about 4% of the 50,000 transit buses in its survey run on an alternative fuel. Furthermore, 1 in 5 of the new transit buses that members have on order are alternative fuel buses. This program was designed to comprehensively and objectively evaluate the alternative fuels in use in the industry.

  16. Matter in transition

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

    Anderson, Lara B.; Gray, James; Raghuram, Nikhil; Taylor, Washington

    2016-04-13

    In this study, we explore a novel type of transition in certain 6D and 4D quantum field theories, in which the matter content of the theory changes while the gauge group and other parts of the spectrum remain invariant. Such transitions can occur, for example, for SU(6) and SU(7) gauge groups, where matter fields in a three-index antisymmetric representation and the fundamental representation are exchanged in the transition for matter in the two-index antisymmetric representation. These matter transitions are realized by passing through superconformal theories at the transition point. We explore these transitions in dual F-theory and heterotic descriptions, wheremore » a number of novel features arise. For example, in the heterotic description the relevant 6D SU(7) theories are described by bundles on K3 surfaces where the geometry of the K3 is constrained in addition to the bundle structure. On the F-theory side, non-standard representations such as the three-index antisymmetric representation of SU(N) require Weierstrass models that cannot be realized from the standard SU(N) Tate form. We also briefly describe some other situations, with groups such as Sp(3), SO(12), and SU(3), where analogous matter transitions can occur between different representations. For SU(3), in particular, we find a matter transition between adjoint matter and matter in the symmetric representation, giving an explicit Weierstrass model for the F-theory description of the symmetric representation that complements another recent analogous construction.« less

  17. Alaska North Slope Tundra Travel Model and Validation Study

    SciTech Connect (OSTI)

    Harry R. Bader; Jacynthe Guimond

    2006-03-01

    The Alaska Department of Natural Resources (DNR), Division of Mining, Land, and Water manages cross-country travel, typically associated with hydrocarbon exploration and development, on Alaska's arctic North Slope. This project is intended to provide natural resource managers with objective, quantitative data to assist decision making regarding opening of the tundra to cross-country travel. DNR designed standardized, controlled field trials, with baseline data, to investigate the relationships present between winter exploration vehicle treatments and the independent variables of ground hardness, snow depth, and snow slab thickness, as they relate to the dependent variables of active layer depth, soil moisture, and photosynthetically active radiation (a proxy for plant disturbance). Changes in the dependent variables were used as indicators of tundra disturbance. Two main tundra community types were studied: Coastal Plain (wet graminoid/moist sedge shrub) and Foothills (tussock). DNR constructed four models to address physical soil properties: two models for each main community type, one predicting change in depth of active layer and a second predicting change in soil moisture. DNR also investigated the limited potential management utility in using soil temperature, the amount of photosynthetically active radiation (PAR) absorbed by plants, and changes in microphotography as tools for the identification of disturbance in the field. DNR operated under the assumption that changes in the abiotic factors of active layer depth and soil moisture drive alteration in tundra vegetation structure and composition. Statistically significant differences in depth of active layer, soil moisture at a 15 cm depth, soil temperature at a 15 cm depth, and the absorption of photosynthetically active radiation were found among treatment cells and among treatment types. The models were unable to thoroughly investigate the interacting role between snow depth and disturbance due to a lack of variability in snow depth cover throughout the period of field experimentation. The amount of change in disturbance indicators was greater in the tundra communities of the Foothills than in those of the Coastal Plain. However the overall level of change in both community types was less than expected. In Coastal Plain communities, ground hardness and snow slab thickness were found to play an important role in change in active layer depth and soil moisture as a result of treatment. In the Foothills communities, snow cover had the most influence on active layer depth and soil moisture as a result of treatment. Once certain minimum thresholds for ground hardness, snow slab thickness, and snow depth were attained, it appeared that little or no additive effect was realized regarding increased resistance to disturbance in the tundra communities studied. DNR used the results of this modeling project to set a standard for maximum permissible disturbance of cross-country tundra travel, with the threshold set below the widely accepted standard of Low Disturbance levels (as determined by the U.S. Fish and Wildlife Service). DNR followed the modeling project with a validation study, which seemed to support the field trial conclusions and indicated that the standard set for maximum permissible disturbance exhibits a conservative bias in favor of environmental protection. Finally DNR established a quick and efficient tool for visual estimations of disturbance to determine when investment in field measurements is warranted. This Visual Assessment System (VAS) seemed to support the plot disturbance measurements taking during the modeling and validation phases of this project.

  18. Information and Records Management Transition Guidance | Department...

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

    Information and Records Management Transition Guidance Information and Records Management Transition Guidance Information and Records Management Transition Guidance (March 2004)...

  19. Transition Plan | Department of Energy

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

    This template is used to define the objectives, resources, and plans for systems transition, e.g., scheduling the transition from acceptance testing to full operational status, ...

  20. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses:

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

    Preliminary Evaluation Results | Department of Energy Preliminary Evaluation Results Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC Transit in Oakland, California, and six baseline diesel buses similar in design to the fuel cell buses. PDF icon 41041.pdf More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell

  1. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses:

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

    Third Evaluation Report - Appendices | Department of Energy Report - Appendices Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report - Appendices This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location. PDF icon 43545-2.pdf More Documents & Publications Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and

  2. Request for Travel Funds for Systems Radiation Biology Workshop

    SciTech Connect (OSTI)

    Barcellos-Hoff, Mary Helen

    2014-03-22

    The 3rd International Systems Radiation Biology Workshop brought together the major European, US and Japanese research programs on radiation risk as well as selected experts representing systems biological approaches to discuss how the new methodologies could be best exploited for low dose research. A significant part of the workshop was devoted to discussions organised as breakout group sessions. To facilitate discussions number of participants was limited to 60 persons. To achieve the goals of this symposium in this international conference, support from DOE is vital. Hence, this proposal requested support in the amount of $15,000 to cover the travel expenses of international experts and radiation biology scientists from the United States. This supporting mechanism was clearly identified to the selected US participants as a conference support award from the DOE (See attached PDF). The workshop was an outstanding opportunity to strengthen interactions between leading experts in the emerging areas of radiation sciences, and will also provide opportunities for younger scientists to meet with experts and discuss their results. This workshop was designed to endorse active engagement in international collaboration. A major objective of this conference was to effectively communicate research results, in order to ensure that current thinking reflects sound science of radiation biology. Further, this international event addressed the use and success of scientific initiatives in radiation biology for policymakers, standard-setters, and the general public.

  3. Three-cell traveling wave superconducting test structure

    SciTech Connect (OSTI)

    Avrakhov, Pavel; Kanareykin, Alexei; /Euclid Techlabs, Solon; Kazakov, Sergey; Solyak, Nikolay; Wu, Genfa; Yakovlev, Vyacheslav P.; /Fermilab

    2011-03-01

    Use of a superconducting traveling wave accelerating (STWA) structure with a small phase advance per cell rather than a standing wave structure may provide a significant increase of the accelerating gradient in the ILC linac. For the same surface electric and magnetic fields the STWA achieves an accelerating gradient 1.2 larger than TESLA-like standing wave cavities. The STWA allows also longer acceleration cavities, reducing the number of gaps between them. However, the STWA structure requires a SC feedback waveguide to return the few hundreds of MW of circulating RF power from the structure output to the structure input. A test single-cell cavity with feedback was designed, manufactured and successfully tested demonstrating the possibility of a proper processing to achieve a high accelerating gradient. These results open way to take the next step of the TW SC cavity development: to build and test a travelingwave three-cell cavity with a feedback waveguide. The latest results of the single-cell cavity tests are discussed as well as the design of the test 3-cell TW cavity.

  4. Optimized pulse sequences for suppressing unwanted transitions in quantum systems

    SciTech Connect (OSTI)

    Schroeder, C. A.; Agarwal, G. S.

    2011-01-15

    We investigate the nature of the pulse sequence so that unwanted transitions in quantum systems can be inhibited optimally. For this purpose we show that the sequence of pulses proposed by Uhrig [Phys. Rev. Lett. 98, 100504 (2007)] in the context of inhibition of environmental dephasing effects is optimal. We derive exact results for inhibiting the transitions and confirm the results numerically. We posit a very significant improvement by usage of the Uhrig sequence over an equidistant sequence in decoupling a quantum system from unwanted transitions. The physics of inhibition is the destructive interference between transition amplitudes before and after each pulse.

  5. Notice of Intent to Develop a Page Change to DOE O 551.1D, Official Foreign Travel

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

    2015-05-21

    The requirement to surrender official passports is considered burdensome to travelers and will be removed as a requirement and replaced with a process that requires travelers be responsible for safeguarding their own official passports. In conjunction with this revision, administrative changes will be made to update the title of the Office of Travel Management.

  6. Beyond telecommuting: A new paradigm for the effect of telecommunications on travel

    SciTech Connect (OSTI)

    Niles, J.S.

    1994-09-01

    Conventional wisdom about social and economic behavior holds that the use of telecommunications is a natural substitute for transportation. For example, telephone calls can replace travel to meetings, and facsimile or electronic-mail transmission of documents substitutes for courier or postal delivery. The moving of information can replace the moving of period and goods. Vehicle traffic on the national transportation infrastructure can be replaced by digital traffic on what is now called the National Information Infrastructure (NII). A leading example is telecommuting. This means using telecommunications to replace commuting between home and work. Telecommuting is an optional way of expanding employees` work locations in those circumstances where it yields both improved organizational performance and employee satisfication. Telecommuting accounts for 7.6 million U.S. workers as of early 1993, up 15% from the 6.6 million counted in 1992. The growth of telecommuting has been strong for the past five years. No one has identified any reasons to suggest that this growth will abate in the forseeable future.

  7. G-band harmonic multiplying gyrotron traveling-wave amplifier with a mode-selective circuit

    SciTech Connect (OSTI)

    Yeh, Y. S.; Chen, Chang-Hong; Wang, Z. W.; Kao, B. H.; Chen, Chien-Hsiang; Lin, T. Y.; Guo, Y. W.

    2014-12-15

    Harmonic multiplying gyrotron traveling-wave amplifiers (gyro-TWAs) permit for magnetic field reduction and frequency multiplication. A high-order-mode harmonic multiplying gyro-TWA with large circuit dimensions and low ohmic loss can achieve a high average power. By amplifying a fundamental harmonic TE{sub 01} drive wave, the second harmonic component of the beam current initiates a TE{sub 02} wave to be amplified. Wall losses can suppress some competing modes because they act as an effective sink of the energy of the modes. However, such wall losses do not suppress all competing modes as the fields are contracted in the copper section in the gyro-TWA. An improved mode-selective circuit, using circular waveguides with the specified radii, can provide the rejection points within the frequency range to suppress the competing modes. The simulated results reveal that the mode-selective circuit can provide an attenuation of more than 10 dB to suppress the competing modes (TE{sub 21}, TE{sub 51}, TE{sub 22}, and TE{sub 03}). A G-band second harmonic multiplying gyro-TWA with the mode-selective circuit is predicted to yield a peak output power of 50 kW at 198.8 GHz, corresponding to a saturated gain of 55 dB at an interaction efficiency of 10%. The full width at half maximum bandwidth is 5 GHz.

  8. Travel Patterns and Characteristics of Elderly Subpopulation in New York State

    SciTech Connect (OSTI)

    Hwang, Ho-Ling; Wilson, Daniel W.; Reuscher, Tim; Yang, Jianjiang; Taylor, Rob D.; Chin, Shih-Miao

    2015-03-01

    With the increasing demographic shift towards a larger population of elderly (individuals 65 years and older), it is essential for policy makers and planners to have an understanding of transportation issues that affect the elderly. These issues include livability of the community, factors impacting travel behavior and mobility, transportation safety, etc. In this study, Oak Ridge National Laboratory was tasked by the New York State (NYS) Department of Transportation to conduct a detailed examination of travel behaviors, and identify patterns and trends of the elderly within NYS. The National Household Travel Survey (NHTS) was used as the primary data source to analyze subjects and address questions such as: Are there differences in traveler demographics between the elderly population and those of younger age groups who live in various NYS regions; e.g., New York City, other urban areas of NYS, or other parts of the country? How do they compare with the population at large? Are there any regional differences (e.g., urban versus rural)? Gender differences? Do any unique travel characteristics or patterns exist within the elderly group? In addition to analysis of NHTS data, roadway travel safety concerns associated with elderly travelers were also investigated in this study. Specifically, data on accidents involving the elderly (including drivers, passengers, and others) as captured in the Fatal Analysis Reporting System (FARS) database was analyzed to examine elderly driver and elderly pedestrian travel safety issues in NYS. The analyses of these data sets provide a greater understanding of the elderly within NYS and their associated transportation issues. Through this study, various key findings on elderly population size, household characteristics, and travel patterns were produced and are report herein this report.

  9. Transportation Energy Futures Series: Effects of Travel Reduction and Efficient Driving on Transportation: Energy Use and Greenhouse Gas Emissions

    SciTech Connect (OSTI)

    Porter, C. D.; Brown, A.; DeFlorio, J.; McKenzie, E.; Tao, W.; Vimmerstedt, L.

    2013-03-01

    Since the 1970s, numerous transportation strategies have been formulated to change the behavior of drivers or travelers by reducing trips, shifting travel to more efficient modes, or improving the efficiency of existing modes. This report summarizes findings documented in existing literature to identify strategies with the greatest potential impact. The estimated effects of implementing the most significant and aggressive individual driver behavior modification strategies range from less than 1% to a few percent reduction in transportation energy use and GHG emissions. Combined strategies result in reductions of 7% to 15% by 2030. Pricing, ridesharing, eco-driving, and speed limit reduction/enforcement strategies are widely judged to have the greatest estimated potential effect, but lack the widespread public acceptance needed to accomplish maximum results. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  10. Transportation Energy Futures Series. Effects of Travel Reduction and Efficient Driving on Transportation. Energy Use and Greenhouse Gas Emissions

    SciTech Connect (OSTI)

    Porter, C. D.; Brown, A.; DeFlorio, J.; McKenzie, E.; Tao, W.; Vimmerstedt, L.

    2013-03-01

    Since the 1970s, numerous transportation strategies have been formulated to change the behavior of drivers or travelers by reducing trips, shifting travel to more efficient modes, or improving the efficiency of existing modes. This report summarizes findings documented in existing literature to identify strategies with the greatest potential impact. The estimated effects of implementing the most significant and aggressive individual driver behavior modification strategies range from less than 1% to a few percent reduction in transportation energy use and GHG emissions. Combined strategies result in reductions of 7% to 15% by 2030. Pricing, ridesharing, eco-driving, and speed limit reduction/enforcement strategies are widely judged to have the greatest estimated potential effect, but lack the widespread public acceptance needed to accomplish maximum results. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  11. Secretary Chu and Energy Department Officials to Travel Across...

    Office of Environmental Management (EM)

    The Energy Department's Super Truck program supports Volvo North America's efforts to improve the efficiency of heavy-duty trucks. On Wednesday, January 25, Acting Assistant ...

  12. Implementing Sustainable Urban Travel Policies in Mexico | Open...

    Open Energy Info (EERE)

    This Tool This tool is most helpful when using these strategies: Shift - Change to low-carbon modes Improve - Enhance infrastructure & policies Learn more about the avoid,...

  13. Traveling wave device for combining or splitting symmetric and asymmetric waves

    DOE Patents [OSTI]

    Möbius, Arnold; Ives, Robert Lawrence

    2005-07-19

    A traveling wave device for the combining or splitting of symmetric and asymmetric traveling wave energy includes a feed waveguide for traveling wave energy, the feed waveguide having an input port and a launching port, a reflector for coupling wave energy between the feed waveguide and a final waveguide for the collection and transport of wave energy to or from the reflector. The power combiner has a launching port for symmetrical waves which includes a cylindrical section coaxial to the feed waveguide, and a launching port for asymmetric waves which includes a sawtooth rotated about a central axis.

  14. Fact #903: December 14, 2015 Vehicle Miles of Travel is up in 2015 -

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

    Dataset | Department of Energy 03: December 14, 2015 Vehicle Miles of Travel is up in 2015 - Dataset Fact #903: December 14, 2015 Vehicle Miles of Travel is up in 2015 - Dataset Excel file and dataset for Vehicle Miles of Travel is up in 2015 File fotw#903_web.xlsx More Documents & Publications Project Reports for Salish and Kootenai Tribes, Confederated Tribes of the Flathead Reservation: S&K Holding Company - 2004 Project 2015 GTO Peer Review U.S. LNG Imports and Exports

  15. U. S. DEPARTMENT OF ENERGY REQUEST AND AUTHORIZATION FOR OFFICIAL TRAVEL (Change of Station)

    Energy Savers [EERE]

    ENERGY REQUEST AND AUTHORIZATION FOR OFFICIAL TRAVEL (Change of Station) (Do Not Remove Carbons) DOE F 1510.9 (07-93) (Previously CR-279A) (07-89 edition may be used) 1. Amendment 2. Division/Office Code 3. (Leave Blank) Authorization Number 4. Employee's Name (First name, middle initial and last name) 5. Spouse Plans To: 6. No. of Dependents Age 12 and Over Traveling with Employee (excluding spouse) 7. No. of Dependents Under 12 Traveling with Employee 8. No. of Dependents Age 12 and Over

  16. DOE Premium Class Travel Reports for FY 09 and FY 13

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

    Document #1 Travel Mode 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Fiscal Year 2009 FIRST CLASS TRAVEL REPORT Type name of reporting agency here. Point of Contact : Phone Number: Fax Number: Email Address: ROSSANA BALLANTINE 301-903-9936 301-903-2853 Rossana Ballantine@hg.doe.gov Reporting Period : October 1, 2008 - Sept ember 30, 2009 Total Number of Records Reported: Total Cost of First Class Accomodations Reported: Total Cost of Alternative Coach-Class Accomodations Reported: Traveler

  17. DOE Premium Class Travel Report for FY 09 through FY 13 | Department of

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

    Energy Premium Class Travel Report for FY 09 through FY 13 DOE Premium Class Travel Report for FY 09 through FY 13 This report was provided to the FOIA office in response to several FOIA requests. PDF icon DOEPremiumClassTravelReportsFY09-FY13.pdf More Documents & Publications ISSUANCE 2015-07-15: Energy Conservation Program: Test Procedure for Refrigerated Bottled or Canned Beverage Vending Machines, Final Rule Development and Demonstration of a Fuel-Efficient Class 8 Highway Vehicle

  18. Secretary Chu To Travel to China and Japan | Department of Energy

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

    To Travel to China and Japan Secretary Chu To Travel to China and Japan November 5, 2010 - 12:00am Addthis Washington, D.C. -U.S. Energy Secretary Steven Chu will travel to China and Japan November 14 - 19 to meet with government officials, business leaders and others to discuss the Department's ongoing clean energy and scientific collaboration with both countries. More information about the trip is as follows: Shanghai, China On Sunday, November 14, Secretary Chu will tour clean energy

  19. Acquisition Guide Chapter 42.2- Documentation and Approval of Federally Funded International Travel

    Broader source: Energy.gov [DOE]

    The subject guide chapter provides guidance to DOE Contracting Officers, Contracting Officer Representatives, and Program Officials on documentation and approval of federally funded international travel by Federal contractors and subcontractors. Contracting Officers, Contracting Officer Representatives or Program Officials responsible for reviewing and approving for payment Contractor invoices that include travel expenses must ensure that when a foreign air carrier is used a certification is provided with the invoice in accordance with §301-10.142 of the FTR. Reimbursement for travel expenses from a foreign air carrier fare may be denied if appropriate certification is not provided.

  20. Student Travel to Pan-Am Congress of Plants & Biofuels in Merida, Mexico

    SciTech Connect (OSTI)

    Kimberly, Kimnach

    2014-04-01

    Department of Energy – Final Technical Report Grant Title: Student Travel to Pan-Am Congress of Plants & Biofuels in Merida, Mexico Award #: DE-FG02-08ER64612 Award Amount: $15,000.00 Award period: 6/15/2008 to 6/14/2009 ______________________________________________________________________________ The Pan American Congress on Plants and BioEnergy convened in Mérida, Mexico, June 22 to 25, 2008. The program was organized by Steve Long (University of Illinois) and Nick Carpita (Purdue University), along with co-organizers Marcos Buckeridge (University of São Paulo, Brazil) and Federico Sánchez (Universidad Nacional Autónoma de México). More than 200 scientists from over a dozen nations around the world gathered to discuss key issues surrounding the development of biofuel feedstocks and to report on their research in this area. This three day conference had invited speakers surrounding developing renewable and sustainable energy resources which are typically propelled by three important drivers – security, cost and environmental impact. The first day of the conference was delegated to governmental policy makers and designers of national research and plant biologists, agronomists, microbiologists, economists and ecologists in relation to bioenergy security in the Western Hemisphere that is sustainable and ecologically and economically sound. Speakers from countries that have already made themselves energy independent shared solutions to improve efficiency that is being researched. Venture capitalist and industry leaders also spoke on their commitment to economic success in a new green agroindustry. Days two and three explored bioenergy crops and introduced the participants to the breadth of the agricultural landscape, the underlying biology of bioenergy plants and new ideas to enhance biomass yield and quality of the energy crops of the future. These presentations educated the participants in an effort to develop energy strategies in countries across the world that become energy independent while developing economic growth and clean, reliable and affordable energy. Presenters educated student on reducing net greenhouse gas emissions, improving fuel efficiencies, indigenous energy alternative such as ethanol and improving bioenergy crop plants. Sessions surrounding developing bioenergy crop plants were held relating to the growth and development, cell wall synthesis and architecture to improve the next generation of energy plants. This grant was used to supplement registration and provide lodging support for graduate students, post-doctorals, and early career scientists attending the congress. Among these awardees partially funded by DOE and other agencies were 18 individuals, including nine graduate students, two post-doctorals, and seven early career scientists. The PIs on the grant worked closely with the Minority Affairs and International committees of ASPB to identify appropriate travel awardees; among the 18 awardees, nine were female, and two were African-American. Submitted & Certified by: Kimberly Kimnach

  1. Transition Implementation Guide

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

    2001-04-24

    This Guide was prepared to aid in the development, planning, and implementation of requirements and activities during the transition phase at Department of Energy (DOE) facilities that have been declared or are forecast to become excess to any future mission requirements.

  2. Variational transition state theory

    SciTech Connect (OSTI)

    Truhlar, D.G.

    1993-12-01

    This research program involves the development of variational transition state theory (VTST) and semiclassical tunneling methods for the calculation of gas-phase reaction rates and selected applications. The applications are selected for their fundamental interest and/or their relevance to combustion.

  3. Statement on U.S. Secretary of Energy Ernest Moniz's Travel to Istanbul, Turkey

    Broader source: Energy.gov [DOE]

    U.S. Secretary of Energy Ernest Moniz will travel to Istanbul, Turkey November 20 to 23 and give opening remarks at the 5th Atlantic Council Energy Summit.

  4. Secretary Chu to Travel to India and China to Promote Clean Energy...

    Office of Environmental Management (EM)

    India and China to Promote Clean Energy Partnerships Secretary Chu to Travel to India and China to Promote Clean Energy Partnerships November 10, 2009 - 12:00am Addthis Washington, ...

  5. Fact #670: April 11, 2011 Vehicle-Miles of Travel Rises in 2010

    Broader source: Energy.gov [DOE]

    The preliminary estimates from the Federal Highway Administration show that vehicle-miles of travel (VMT) increased slightly in 2010 over the previous year, but have not surpassed the peak of 3.03...

  6. Rebound 2007: Analysis of U.S. Light-Duty Vehicle Travel Statistics

    SciTech Connect (OSTI)

    Greene, David L

    2010-01-01

    U.S. national time series data on vehicle travel by passenger cars and light trucks covering the period 1966 2007 are used to test for the existence, size and stability of the rebound effect for motor vehicle fuel efficiency on vehicle travel. The data show a statistically significant effect of gasoline price on vehicle travel but do not support the existence of a direct impact of fuel efficiency on vehicle travel. Additional tests indicate that fuel price effects have not been constant over time, although the hypothesis of symmetry with respect to price increases and decreases is not rejected. Small and Van Dender (2007) model of a declining rebound effect with income is tested and similar results are obtained.

  7. Fact #698: October 24, 2011 Changes in the Federal Highway Administration Vehicle Travel Data

    Broader source: Energy.gov [DOE]

    With the April release of Table VM-1 from Highway Statistics 2009 came several changes to the availability of data on vehicle miles of travel (VMT). From 1966 to 2008, the Federal Highway...

  8. Fact #903: December 14, 2015 Vehicle Miles of Travel is up in...

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

    Vehicle Miles of Travel is up in 2015 File fotw903web.xlsx More Documents & Publications Project Reports for Salish and Kootenai Tribes, Confederated Tribes of the Flathead ...

  9. Fact #566: April 13, 2009 Vehicle Travel and the Price of Gasoline

    Office of Energy Efficiency and Renewable Energy (EERE)

    The price of gasoline is one factor that can have an effect on the number of highway vehicle miles traveled (VMT). The graph below shows a three-month moving average of the percentage change of...

  10. Fact #584: August 17, 2009 The Price of Gasoline and Vehicle Travel: How Do They Relate?

    Office of Energy Efficiency and Renewable Energy (EERE)

    The price of gasoline is one factor that can have an effect on the number of highway vehicle miles traveled (VMT). The graph below shows a three-month moving average of the percentage change of...

  11. Tuning gain and bandwidth of traveling wave tubes using metamaterial beam-wave interaction structures

    SciTech Connect (OSTI)

    Lipton, Robert Polizzi, Anthony

    2014-10-14

    We employ metamaterial beam-wave interaction structures for tuning the gain and bandwidth of short traveling wave tubes. The interaction structures are made from metal rings of uniform cross section, which are periodically deployed along the length of the traveling wave tube. The aspect ratio of the ring cross sections is adjusted to control both gain and bandwidth. The frequency of operation is controlled by the filling fraction of the ring cross section with respect to the size of the period cell.

  12. Secretary Bodman to Travel to the Middle East to Advance International

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

    Energy Cooperation | Department of Energy to Travel to the Middle East to Advance International Energy Cooperation Secretary Bodman to Travel to the Middle East to Advance International Energy Cooperation January 10, 2008 - 10:23am Addthis WASHINGTON, DC - U.S. Secretary of Energy Samuel W. Bodman next week will embark on a five-nation tour through the Middle East to enhance the United States' relationship with oil-producing nations, promote sustained investment in conventional and

  13. Secretary Chu and Energy Department Officials to Travel Across America to

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

    Discuss the Obama Administration's Commitment to Energy Innovation and Manufacturing | Department of Energy Travel Across America to Discuss the Obama Administration's Commitment to Energy Innovation and Manufacturing Secretary Chu and Energy Department Officials to Travel Across America to Discuss the Obama Administration's Commitment to Energy Innovation and Manufacturing January 24, 2012 - 3:47pm Addthis Washington D.C. - This week, Energy Secretary Steven Chu, Deputy Secretary Daniel

  14. Secretary Bodman To Travel to Vienna, Austria for Second GNEP Ministerial

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

    and IAEA General Conference | Department of Energy Bodman To Travel to Vienna, Austria for Second GNEP Ministerial and IAEA General Conference Secretary Bodman To Travel to Vienna, Austria for Second GNEP Ministerial and IAEA General Conference A letter issued by the Department of Energy's Office of Public Affairs detailling the mission behind the U.S. Secretary of Energy Samuel W. Bodman's trip to Vienna, Austria, to chair the second Global Nuclear Energy Partnership (GNEP) Ministerial on

  15. Energy Secretary Moniz to Travel to Des Moines and Ames | The Ames

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

    Laboratory to Travel to Des Moines and Ames News Media Contact: (202) 586-4940 For Immediate Release: Wednesday, May 5, 2016 WASHINGTON - On Friday, Energy Secretary Ernest Moniz will travel to Des Moines, Iowa, where he will participate in a public stakeholder meeting on the second installment of the Quadrennial Energy Review (QER), an integrated study of the U.S. electricity system. Building on the first installment of the QER, which examined the key infrastructure needed for transmission,

  16. NNSA Launches Second Travel Blog to Feature Administrator's Work at Next

    National Nuclear Security Administration (NNSA)

    Generation Safeguards Meeting in Japan | National Nuclear Security Administration Launches Second Travel Blog to Feature Administrator's Work at Next Generation Safeguards Meeting in Japan October 26, 2009 WASHINGTON, D.C. - The National Nuclear Security Administration (NNSA) today launched its second travel blog, allowing online visitors to follow NNSA Administrator Thomas D'Agostino and receive updates from the second international meeting on Next Generation Safeguards in Tokai-mura,

  17. Single-layer transition metal sulfide catalysts

    DOE Patents [OSTI]

    Thoma, Steven G.

    2011-05-31

    Transition Metal Sulfides (TMS), such as molybdenum disulfide (MoS.sub.2), are the petroleum industry's "workhorse" catalysts for upgrading heavy petroleum feedstocks and removing sulfur, nitrogen and other pollutants from fuels. We have developed an improved synthesis technique to produce SLTMS catalysts, such as molybdenum disulfide, with potentially greater activity and specificity than those currently available. Applications for this technology include heavy feed upgrading, in-situ catalysis, bio-fuel conversion and coal liquefaction.

  18. transitional | netl.doe.gov

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

    from Flue Gas by Phase Transitional Absorption Project No.: FG26-05NT42488 Basic Illustration of the Phase Transitional Absorption Process. Basic Illustration of the Phase Transitional Absorption Process. Hampton University researched a novel carbon dioxide (CO2) absorption concept, phase transitional absorption, that utilizes a two-part proprietary absorbent consisting of an activated agent dissolved in a solvent. Phase separation of the activated agent from the chemical solvent occurs during

  19. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2007-03-01

    This report provides an evaluation of three prototype fuel cell-powered transit buses operating at AC Transit in Oakland, California, and six baseline diesel buses similar in design to the fuel cell buses.

  20. The electroweak phase transition in the Inert Doublet Model

    SciTech Connect (OSTI)

    Blinov, Nikita; Profumo, Stefano; Stefaniak, Tim

    2015-07-21

    We study the strength of a first-order electroweak phase transition in the Inert Doublet Model (IDM), where particle dark matter (DM) is comprised of the lightest neutral inert Higgs boson. We improve over previous studies in the description and treatment of the finite-temperature effective potential and of the electroweak phase transition. We focus on a set of benchmark models inspired by the key mechanisms in the IDM leading to a viable dark matter particle candidate, and illustrate how to enhance the strength of the electroweak phase transition by adjusting the masses of the yet undiscovered IDM Higgs states. We argue that across a variety of DM masses, obtaining a strong enough first-order phase transition is a generic possibility in the IDM. We find that due to direct dark matter searches and collider constraints, a sufficiently strong transition and a thermal relic density matching the universal DM abundance is possible only in the Higgs funnel regime.

  1. FE Transition Deliverables

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

    FE Transition Deliverables To: Cynthia Quarterman From: Charles Roy, FE-3 Date: 12/04/08 Re: On 12/03/08 Cynthia Quarterman requested a list of major projects with quick starts and job creation from Vic Der. Attached is a hard copy of this document. An electronic version of this document will be submitted to Cynthia Quarterman through the Office of Management. If there are any questions, please contact Charles Roy at 202-586-8977. ,^ (^// Cc~y Major Projects with Quick Starts & Jobs Creation

  2. Alternative Fuel Transit Buses

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

    35th St. Craig Ave. Alt Blvd. Colucci Pkwy. Final Results from the National Renewable Energy Laboratory Vehicle Evaluation Program Final Results from the National Renewable Energy Laboratory Vehicle Evaluation Program N T Y A U E O F E N E R G D E P A R T M E N I T E D S T A T S O F A E R I C M Produced for the U.S. Department of Energy (DOE) by the National Renewable Energy Laboratory (NREL), a U.S. DOE national laboratory Transit Buses Alternative Fuel Alternative Fuel Final Results from the

  3. Quantifying the Effect of Fast Charger Deployments on Electric Vehicle Utility and Travel Patterns via Advanced Simulation: Preprint

    SciTech Connect (OSTI)

    Wood, E.; Neubauer, J.; Burton, E.

    2015-02-01

    The disparate characteristics between conventional (CVs) and battery electric vehicles (BEVs) in terms of driving range, refill/recharge time, and availability of refuel/recharge infrastructure inherently limit the relative utility of BEVs when benchmarked against traditional driver travel patterns. However, given a high penetration of high-power public charging combined with driver tolerance for rerouting travel to facilitate charging on long-distance trips, the difference in utility between CVs and BEVs could be marginalized. We quantify the relationships between BEV utility, the deployment of fast chargers, and driver tolerance for rerouting travel and extending travel durations by simulating BEVs operated over real-world travel patterns using the National Renewable Energy Laboratory's Battery Lifetime Analysis and Simulation Tool for Vehicles (BLAST-V). With support from the U.S. Department of Energy's Vehicle Technologies Office, BLAST-V has been developed to include algorithms for estimating the available range of BEVs prior to the start of trips, for rerouting baseline travel to utilize public charging infrastructure when necessary, and for making driver travel decisions for those trips in the presence of available public charging infrastructure, all while conducting advanced vehicle simulations that account for battery electrical, thermal, and degradation response. Results from BLAST-V simulations on vehicle utility, frequency of inserted stops, duration of charging events, and additional time and distance necessary for rerouting travel are presented to illustrate how BEV utility and travel patterns can be affected by various fast charge deployments.

  4. Data Processing Procedures and Methodology for Estimating Trip Distances for the 1995 American Travel Survey (ATS)

    SciTech Connect (OSTI)

    Hwang, H.-L.; Rollow, J.

    2000-05-01

    The 1995 American Travel Survey (ATS) collected information from approximately 80,000 U.S. households about their long distance travel (one-way trips of 100 miles or more) during the year of 1995. It is the most comprehensive survey of where, why, and how U.S. residents travel since 1977. ATS is a joint effort by the U.S. Department of Transportation (DOT) Bureau of Transportation Statistics (BTS) and the U.S. Department of Commerce Bureau of Census (Census); BTS provided the funding and supervision of the project, and Census selected the samples, conducted interviews, and processed the data. This report documents the technical support for the ATS provided by the Center for Transportation Analysis (CTA) in Oak Ridge National Laboratory (ORNL), which included the estimation of trip distances as well as data quality editing and checking of variables required for the distance calculations.

  5. APOSTLE: 11 TRANSIT OBSERVATIONS OF TrES-3b

    SciTech Connect (OSTI)

    Kundurthy, P.; Becker, A. C.; Agol, E.; Barnes, R.; Williams, B.

    2013-02-10

    The Apache Point Survey of Transit Lightcurves of Exoplanets (APOSTLE) observed 11 transits of TrES-3b over two years in order to constrain system parameters and look for transit timing and depth variations. We describe an updated analysis protocol for APOSTLE data, including the reduction pipeline, transit model, and Markov Chain Monte Carlo analyzer. Our estimates of the system parameters for TrES-3b are consistent with previous estimates to within the 2{sigma} confidence level. We improved the errors (by 10%-30%) on system parameters such as the orbital inclination (i {sub orb}), impact parameter (b), and stellar density ({rho}{sub *}) compared to previous measurements. The near-grazing nature of the system, and incomplete sampling of some transits, limited our ability to place reliable uncertainties on individual transit depths and hence we do not report strong evidence for variability. Our analysis of the transit timing data shows no evidence for transit timing variations and our timing measurements are able to rule out super-Earth and gas giant companions in low-order mean motion resonance with TrES-3b.

  6. Cut Gas Costs This Holiday Traveling Season with Three Easy Tips |

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

    Department of Energy Cut Gas Costs This Holiday Traveling Season with Three Easy Tips Cut Gas Costs This Holiday Traveling Season with Three Easy Tips November 26, 2013 - 9:23am Addthis Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Jason

  7. GE, NASA Work to Relaunch Supersonic Air Travel | GE Global Research

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

    Supporting NASA's efforts to Relaunch Commercial Supersonic Air Travel Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to share on LinkedIn (Opens in new window) Click to share on Tumblr (Opens in new window) GE Supporting NASA's efforts to Relaunch Commercial Supersonic Air Travel Awarded 2- year $599,000 program to reduce engine noise during takeoffs and landings NISKAYUNA, NY - JUNE 10, 2015 - Scientists

  8. Site Transition Plan Guidance | Department of Energy

    Energy Savers [EERE]

    Plan Guidance Site Transition Plan Guidance Site Transition Plan Guidance PDF icon Site Transition Plan Guidance More Documents & Publications Development of Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition Reporting Pre-guidance Announcement 06-02-2011 Letter to SEP Recipients on Changes to Reporting Requirements

  9. Fuel Cell Buses in U.S. Transit Fleets: Current Status 2015

    SciTech Connect (OSTI)

    Eudy, Leslie; Post, Matthew; Gikakis, Christina

    2015-12-11

    This report, published annually, summarizes the progress of fuel cell electric bus (FCEB) development in the United States and discusses the achievements and challenges of introducing fuel cell propulsion in transit. Various stakeholders, including FCEB developers, transit agencies, and system integrators, have expressed the value of this annual status report, which provides a summary of results from evaluations performed by the National Renewable Energy Laboratory. The annual status report tracks the progress of the FCEB industry toward meeting technical targets, documents the lessons learned, and discusses the path forward for commercial viability of fuel cell technology for transit buses. The 2015 summary results primarily focus on the most recent year for each demonstration, from August 2014 through July 2015. The results for these buses account for more than 1,045,000 miles traveled and 83,000 hours of fuel cell power system operation. The primary results presented in the report are from two demonstrations of fuel-cell-dominant bus designs: the Zero Emission Bay Area Demonstration Group led by Alameda-Contra Costa Transit District (AC Transit) in California and the American Fuel Cell Bus Project at SunLine Transit Agency in California.

  10. Retiree Medical Transition | Jefferson Lab

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

    Retiree Medical Transition Retiree Medical Transition Dear Colleagues, We are pleased to announce some exciting changes to the current health care benefits provided through Jefferson Science Associates at Jefferson Lab (Jefferson Lab) to our retiree population. During the next 2 months, our priority will be to work with our retirees and their eligible dependents to transition to a new retiree medical plan. To receive more information and a broad overview of this benefit change, click here. Late

  11. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-10-01

    This report provides preliminary results from a National Renewable Energy Laboratory evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment; early results and agency experience are also provided.

  12. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Preliminary Evaluation Results

    Broader source: Energy.gov [DOE]

    This report provides preliminary results from the evaluation of a protoptye fuel cell transit bus operating at Connecticut Transit in Hartford. Included are descriptions of the planned fuel cell bus demonstration and equipment, early results and agency experience are also provided.

  13. How many electric miles do Nissan Leafs and Chevrolet Volts in The EV Project travel?

    SciTech Connect (OSTI)

    John Smart

    2014-05-01

    This paper presents travel statistics and metrics describing the driving behavior of Nissan Leaf and Chevrolet Volt drivers in the EV Project. It specifically quantifies the distance each group of vehicles drives each month. This paper will be published to INL's external website and will be accessible by the general public.

  14. Microsoft Word - gra-ugs-program-travel-regs-tr9003.doc

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

    No: CFO-TR9003 Revision: 2 Issued: 1/27/14 Effective Date: 1/27/14 Required Review Date: 1/27/16 LANL CFO-TR9003 1 of 7 GRA and UGS Program Travel Table o f C ontents 1.0 Purpose ........................................................................................................................................ 2 2.0 Authority and Applicability ............................................................................................................ 2 2.1 Authority

  15. Fact #616: March 29, 2010 Household Vehicle-Miles of Travel by Trip Purpose

    Broader source: Energy.gov [DOE]

    In 2009, getting to and from work accounted for about 27% of household vehicle-miles of travel (VMT). Work-related business was 8.4% of VMT in 2001, but declined to 6.7% in 2009, possibly due to...

  16. Fact #860 February 16, 2015 Relationship of Vehicle Miles of Travel and the

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

    Price of Gasoline - Dataset | Department of Energy Relationship of Vehicle Miles of Travel and the Price of Gasoline File fotw#860_web.xlsx More Documents & Publications Fact #906: January 4, 2016 VMT and the Price of Gasoline Typically Move in Opposition - Dataset 2012 Data File 2013 Wind Technologies Market Report Data

  17. SunLine Transit Agency

    Broader source: Energy.gov [DOE]

    SunLine Transit Agency provides public transit and community services to California's Coachella Valley. The service area is more than 1,100 square miles and includes nine member cities, as well as Riverside County. Over the years, SunLine has pursued an aggressive strategy for implementing clean technologies into its fleet.

  18. Energy Transition Initiative: Islands Playbook

    Broader source: Energy.gov [DOE]

    The Island Energy Playbook provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  19. Alternative Fuels Data Center: Active Transit

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

    Active Transit to someone by E-mail Share Alternative Fuels Data Center: Active Transit on Facebook Tweet about Alternative Fuels Data Center: Active Transit on Twitter Bookmark Alternative Fuels Data Center: Active Transit on Google Bookmark Alternative Fuels Data Center: Active Transit on Delicious Rank Alternative Fuels Data Center: Active Transit on Digg Find More places to share Alternative Fuels Data Center: Active Transit on AddThis.com... More in this section... Idle Reduction Parts

  20. Alternative Fuels Data Center: Mass Transit

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

    Mass Transit to someone by E-mail Share Alternative Fuels Data Center: Mass Transit on Facebook Tweet about Alternative Fuels Data Center: Mass Transit on Twitter Bookmark Alternative Fuels Data Center: Mass Transit on Google Bookmark Alternative Fuels Data Center: Mass Transit on Delicious Rank Alternative Fuels Data Center: Mass Transit on Digg Find More places to share Alternative Fuels Data Center: Mass Transit on AddThis.com... More in this section... Idle Reduction Parts & Equipment

  1. Washington Metropolitan Area Transit Authority: Compressed Natural Gas Transit Bus Evaluation

    SciTech Connect (OSTI)

    Chandler, K.; Eberts, E.; Melendez, M.

    2006-04-01

    Evaluates compressed natural gas (CNG) powered transit buses at Washington Metropolitan Area Transit Authority (WMATA), providing a comparison between them and standard diesel transit buses.

  2. SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary...

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

    Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results This paper provides...

  3. Improved aethalometer

    DOE Patents [OSTI]

    Hansen, A.D.

    1988-01-25

    An improved aethalometer having a single light source and a single light detector and two light paths from the light source to the light detector. A quartz fiber filter is inserted in the device, the filter having a collection area in one light path and a reference area in the other light path. A gas flow path through the aethalometer housing allows ambient air to flow through the collection area of the filter so that aerosol particles can be collected on the filter. A rotating disk with an opening therethrough allows light for the light source to pass alternately through the two light paths. The voltage output of the detector is applied to a VCO and the VCO pulses for light transmission separately through the two light paths, are counted and compared to determine the absorption coefficient of the collected aerosol particles. 5 figs.

  4. SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET)

    Energy Savers [EERE]

    SUBSIDY ENERGY EMPLOYEES TRANSIT (SEET) Decrease in the Transit Subsidy Per The American Taxpayer Relief Act of 2012, the maximum amount for the Transit Subsidy is due to decrease from $245 to $130 a month. This change is scheduled to take effect on January 1, 2014. Outlined below are actions that you must take to purchase your fare for January 2014. SmarTrip less than $130.00 Per Month No Action Required SmarTrip greater than $130.00 Per Month Action Required SmarTrip Participants The new

  5. One-dimensional kinetic description of nonlinear traveling-pulse and traveling-wave disturbances in long coasting charged particle beams

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

    Davidson, Ronald C.; Qin, Hong

    2015-09-21

    This paper makes use of a one-dimensional kinetic model to investigate the nonlinear longitudinal dynamics of a long coasting beam propagating through a perfectly conducting circular pipe with radius r w . The average axial electric field is expressed as z >=(?/?z)=ebg???b/?z ebg2r2w?3?b/?z3, where g0 and g2 are constant geometric factors, ?b(z,t)=?dpz Fb (z,pz,t) is the line density of beam particles, and F b (z,pz,t) satisfies the 1D Vlasov equation. Detailed nonlinear properties of traveling-wave and traveling-pulse (soliton) solutions with time-stationary waveform are examined for a wide range of system parameters extending from moderate-amplitudes to large-amplitude modulations ofmorethe beam charge density. Two classes of solutions for the beam distribution function are considered, corresponding to: (i) the nonlinear waterbag distribution, where Fb = const in a bounded region of pz-space; and (ii) nonlinear Bernstein-Green-Kruskal (BGK)-like solutions, allowing for both trapped and untrapped particle distributions to interact with the self-generated electric field.less

  6. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation...

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

    PDF icon 44646-2.pdf More Documents & Publications SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results SunLine Transit Agency Fuel Cell Transit ...

  7. Office of Technology Transitions- Overview

    Broader source: Energy.gov [DOE]

    The following fact sheet provides an overview of the Office of Technology Transitions (OTT). The Department of Energy (DOE) is one of the largest supporters of technology transfer in the federal...

  8. DOE Transition Documents - 2008 | Department of Energy

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

    Transition Documents - 2008 DOE Transition Documents - 2008 Following are the DOE Transition Documents - 2008 Files in PDF format PDF icon 2008_Transition_Program_Details_Book_Three.pdf PDF icon 2008_Transition_Budget_Details_Book_Four.pdf PDF icon Authorize_Changes_Contractor_Work_Force_Restructuring_Policy.pdf PDF icon Compilation Congressional Correspondence, January 1, 2008 throught November 14, 2008 PDF icon DOE Transition Team President-Elect's 2008 PDF icon

  9. Time domain analysis of a gyrotron traveling wave amplifier with misaligned electron beam

    SciTech Connect (OSTI)

    Wang, Qiushi Peng, Shuyuan; Luo, Jirun

    2014-08-15

    This article develops a time-domain theory to study the beam-wave interaction in gyrotron traveling wave amplifier (gyro-TWA) with a misaligned electron beam. The effects of beam misalignment on the TE{sub 01} mode gyro-TWA operating at the fundamental are discussed. Numerical results show that the effect of misalignment is less obvious when the input power is larger, and the influences of misalignment on the stable gain and the stable time are basically opposite.

  10. Local Teams from PA, WV Travel to Washington D.C. for National Science Bowl

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

    | netl.doe.gov Regional News Local Teams from PA, WV Travel to Washington D.C. for National Science Bowl Pittsburgh, Pa. - The National Energy Technology Laboratory have sent the regional winners of the southwestern Pennsylvania (SWPA) and West Virginia Science Bowls off to compete in the U.S. Department of Energy National Science Bowl April 28-May 2, 2016, in Washington, D.C. By winning their regional tournaments, the Marshall Middle School (Wexford, PA), Morgantown High School (Morgantown,

  11. Energy Transition Initiative Energy Scenario Tool | Department...

    Energy Savers [EERE]

    Energy Transition Initiative Energy Scenario Tool Energy Transition Initiative Energy Scenario Tool The ETI Energy Scenario Tool helps communities analyze different pathways to ...

  12. Structural Phase Transition and Photoluminescence Properties...

    Office of Scientific and Technical Information (OSTI)

    Phase Transition and Photoluminescence Properties of YF3:Eu3+ Nanocrystals under High Pressure Citation Details In-Document Search Title: Structural Phase Transition and ...

  13. Transition Zone Geothermal Region | Open Energy Information

    Open Energy Info (EERE)

    Unknown Planned Capacity 1 Geothermal Areas within the Transition Zone Geothermal Region Energy Generation Facilities within the Transition Zone Geothermal Region Geothermal Power...

  14. Energy Transition Model | Open Energy Information

    Open Energy Info (EERE)

    Transition Model Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Energy Transition Model AgencyCompany Organization: Quintel Intelligence Sector: Energy Topics:...

  15. Transit Subsidies | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Transit Subsidies Benefit icon Transit subsidies are a financial incentive to encourage employees to use public transportation to get to and from work. They are available at many ...

  16. Transition Strategies for 2006 and 2007

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

    Hydrogen Fuel Production and Distribution * Pay special attention to the transition to a nascent hydrogen economy * Analyze cost goals that are appropriate for the transition * ...

  17. Low Carbon Transition Unit | Open Energy Information

    Open Energy Info (EERE)

    Transition Unit Jump to: navigation, search Name Low Carbon Transition Unit AgencyCompany Organization Danish Government Partner Danish Ministry of Climate, Energy and Buildings;...

  18. Office of Technology Transitions | Department of Energy

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

    Turning Ideas into Impact: The Energy Department's Office of Technology Transitions Turning Ideas into Impact: The Energy Department's Office of Technology Transitions Amazing...

  19. Notice of Intent to Submit Page Changes to Revise DOE O 552.1A, Travel Policy and Procedures

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

    2016-01-07

    A page change is being undertaken to reflect changes in responsibilities brought about by the August 2013 reorganization which transferred travel related functions and systems between the Office of Chief Financial Officer (OCFO) and the Office of Management (MA).

  20. Notice of Intent to Submit Page Changes to Revise DOE O 552.1A, Travel Policy and Procedures

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

    2016-01-07

    A page-change is being undertaken to reflect changes in responsibilities brought about by the August 2013 reorganization which transferred travel related functions and systems between the Office of Chief Financial Officer (OCFO) and the Office of Management (MA).

  1. Effects of Travel Reduction and Efficient Driving on Transportation: Energy Use and Greenhouse Gas Emissions (Transportation Energy Futures Series)

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

    DEMAND Effects of Travel Reduction and Efficient Driving on Transportation: Energy Use and Greenhouse Gas Emissions TRANSPORTATION ENERGY FUTURES SERIES: Effects of Travel Reduction and Efficient Driving on Transportation: Energy Use and Greenhouse Gas Emissions A Study Sponsored by U.S. Department of Energy Office of Energy Efficiency and Renewable Energy March 2013 Prepared by CAMBRIDGE SYSTEMATICS Cambridge, MA 02140 under subcontract DGJ-1-11857-01 Technical monitoring performed by NATIONAL

  2. Alameda-Contra Costa Transit District Fuel Cell Transit Buses: Evalluation

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

    Results Update | Department of Energy Fuel Cell Transit Buses: Evalluation Results Update Alameda-Contra Costa Transit District Fuel Cell Transit Buses: Evalluation Results Update This report is an update to the 2007 preliminary results report on hydrogen fuel cell and diesel buses operating at Alameda-Contra Costa Transit District. PDF icon 42249.pdf More Documents & Publications Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results

  3. Nanodisperse transition metal electrodes (NTME) for electrochemical cells

    DOE Patents [OSTI]

    Striebel, Kathryn A. (Oakland, CA); Wen, Shi-Jie (Sunnyvale, CA)

    2000-01-01

    Disclosed are transition metal electrodes for electrochemical cells using gel-state and solid-state polymers. The electrodes are suitable for use in primary and secondary cells. The electrodes (either negative electrode or positive electrode) are characterized by uniform dispersion of the transition metal at the nanoscale in the polymer. The transition metal moiety is structurally amorphous, so no capacity fade should occur due to lattice expansion/contraction mechanisms. The small grain size, amorphous structure and homogeneous distribution provide improved charge/discharge cycling performance, and a higher initial discharge rate capability. The cells can be cycled at high current densities, limited only by the electrolyte conductivity. A method of making the electrodes (positive and negative), and their usage in electrochemical cells are disclosed.

  4. Energy Transition Initiative | Department of Energy

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

    Energy Transition Initiative Energy Transition Initiative Energy Transition Initiative Through the Energy Transition Initiative (ETI), the U.S. Department of Energy and its partners work with government entities and other stakeholders to establish a long-term energy vision and successfully implement energy efficiency and renewable energy solutions. ETI provides a proven framework and technical resources and tools to help islands, states, and cities transition to a clean energy economy and

  5. Site Transition Framework | Department of Energy

    Energy Savers [EERE]

    Framework Site Transition Framework Site Transition Framework (April 2004) PDF icon Site Transition Framework More Documents & Publications Process for Transition of Uranium Mill Tailings Radiation Control Act Title II Disposal Sites to the U.S. Department of Energy Office of Legacy Management for Long-Term Surveillance and Maintenance Long-Term Stewardship Study Recommendation 218: Develop a Fact Sheet on Site Transition at On-going Mission Sites

  6. Comparison of actinide production in traveling wave and pressurized water reactors

    SciTech Connect (OSTI)

    Osborne, A.G.; Smith, T.A.; Deinert, M.R.

    2013-07-01

    The geopolitical problems associated with civilian nuclear energy production arise in part from the accumulation of transuranics in spent nuclear fuel. A traveling wave reactor is a type of breed-burn reactor that could, if feasible, reduce the overall production of transuranics. In one possible configuration, a cylinder of natural or depleted uranium would be subjected to a fast neutron flux at one end. The neutrons would transmute the uranium, producing plutonium and higher actinides. Under the right conditions, the reactor could become critical, at which point a self-stabilizing fission wave would form and propagate down the length of the reactor cylinder. The neutrons from the fission wave would burn the fissile nuclides and transmute uranium ahead of the wave to produce additional fuel. Fission waves in uranium are driven largely by the production and fission of {sup 239}Pu. Simulations have shown that the fuel burnup can reach values greater than 400 MWd/kgIHM, before fission products poison the reaction. In this work we compare the production of plutonium and minor actinides produced in a fission wave to that of a UOX fueled light water reactor, both on an energy normalized basis. The nuclide concentrations in the spent traveling wave reactor fuel are computed using a one-group diffusion model and are verified using Monte Carlo simulations. In the case of the pressurized water reactor, a multi-group collision probability model is used to generate the nuclide quantities. We find that the traveling wave reactor produces about 0.187 g/MWd/kgIHM of transuranics compared to 0.413 g/MWd/kgIHM for a pressurized water reactor running fuel enriched to 4.95 % and burned to 50 MWd/kgIHM. (authors)

  7. Electronic coupling calculations with transition charges, dipoles, and quadrupoles derived from electrostatic potential fitting

    SciTech Connect (OSTI)

    Fujimoto, Kazuhiro J.

    2014-12-07

    A transition charge, dipole, and quadrupole from electrostatic potential (TrESP-CDQ) method for electronic coupling calculations is proposed. The TrESP method is based on the classical description of electronic Coulomb interaction between transition densities for individual molecules. In the original TrESP method, only the transition charge interactions were considered as the electronic coupling. In the present study, the TrESP method is extended to include the contributions from the transition dipoles and quadrupoles as well as the transition charges. Hence, the self-consistent transition density is employed in the ESP fitting procedure. To check the accuracy of the present approach, several test calculations are performed to a helium dimer, a methane dimer, and an ethylene dimer. As a result, the TrESP-CDQ method gives a much improved description of the electronic coupling, compared with the original TrESP method. The calculated results also show that the self-consistent treatment to the transition densities contributes significantly to the accuracy of the electronic coupling calculations. Based on the successful description of the electronic coupling, the contributions to the electronic coupling are also analyzed. This analysis clearly shows a negligible contribution of the transition charge interaction to the electronic coupling. Hence, the distribution of the transition density is found to strongly influence the magnitudes of the transition charges, dipoles, and quadrupoles. The present approach is useful for analyzing and understanding the mechanism of excitation-energy transfer.

  8. Integrating a Traveling Wave Tube into an AECR-U ion source

    SciTech Connect (OSTI)

    Covo, Michel Kireeff; Benitez, Janilee Y.; Ratti, Alessandro; Vujic, Jasmina L.

    2011-07-01

    An RF system of 500W - 10.75 to 12.75 GHz was designed and integrated into the Advanced Electron Cyclotron Resonance - Upgrade (AECR-U) ion source of the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory. The AECR-U produces ion beams for the Cyclotron giving large flexibility of ion species and charge states. The broadband frequency of a Traveling Wave Tube (TWT) allows modifying the volume that couples and heats the plasma. The TWT system design and integration with the AECR-U ion source and results from commissioning are presented.

  9. Travelling fronts of the CO oxidation on Pd(111) with coverage-dependent diffusion

    SciTech Connect (OSTI)

    Cisternas, Jaime, E-mail: jecisternas@miuandes.cl [Facultad de Ingeniera y Ciencias Aplicadas, Universidad de los Andes, Monseor Alvaro del Portillo 12455, Las Condes, Santiago (Chile); Karpitschka, Stefan [Physics of Fluids, University of Twente, Drienerlolaan 5, 7522 NB Enschede (Netherlands); Wehner, Stefan [Institut fr Integrierte Naturwissenschaften - Physik, Universitt Koblenz-Landau, 56070 Koblenz (Germany)

    2014-10-28

    In this work, we study a surface reaction on Pd(111) crystals under ultra-high-vacuum conditions that can be modeled by two coupled reaction-diffusion equations. In the bistable regime, the reaction exhibits travelling fronts that can be observed experimentally using photo electron emission microscopy. The spatial profile of the fronts reveals a coverage-dependent diffusivity for one of the species. We propose a method to solve the nonlinear eigenvalue problem and compute the direction and the speed of the fronts based on a geometrical construction in phase-space. This method successfully captures the dependence of the speed on control parameters and diffusivities.

  10. Stress relief of transition zones

    SciTech Connect (OSTI)

    Woodward, J.; van Rooyen, D.

    1984-01-01

    This paper considers the problem of intergranular stress corrosion cracking, initiated on the primary side, in the expansion transition region of roller expanded Alloy 600 tubing. In general it is believed that residual stresses, arising from the expansion process, are the cause of the problem. The work reported here concentrated on the identification of an optimal, in-situ stress relief treatment.

  11. Transition metal sulfide loaded catalyst

    DOE Patents [OSTI]

    Maroni, Victor A.; Iton, Lennox E.; Pasterczyk, James W.; Winterer, Markus; Krause, Theodore R.

    1994-01-01

    A zeolite based catalyst for activation and conversion of methane. A zeolite support includes a transition metal (Mo, Cr or W) sulfide disposed within the micropores of the zeolite. The catalyst allows activation and conversion of methane to C.sub.2 + hydrocarbons in a reducing atmosphere, thereby avoiding formation of oxides of carbon.

  12. Transition metal sulfide loaded catalyst

    DOE Patents [OSTI]

    Maroni, V.A.; Iton, L.E.; Pasterczyk, J.W.; Winterer, M.; Krause, T.R.

    1994-04-26

    A zeolite-based catalyst is described for activation and conversion of methane. A zeolite support includes a transition metal (Mo, Cr or W) sulfide disposed within the micropores of the zeolite. The catalyst allows activation and conversion of methane to C[sub 2]+ hydrocarbons in a reducing atmosphere, thereby avoiding formation of oxides of carbon.

  13. Transitioning from fossil-fueled ...

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

    economical, reliable, and safe batteries. To substantially improve battery ... degradation, suboptimal reliability, and potential safety concerns in batteries. ...

  14. Quantifying EV battery end-of-life through analysis of travel needs with vehicle powertrain models

    SciTech Connect (OSTI)

    Saxena, Samveg; Le Floch, Caroline; MacDonald, Jason; Moura, Scott

    2015-05-15

    Electric vehicles enable clean and efficient transportation; however, concerns about range anxiety and battery degradation hinder EV adoption. The common definition for battery end-of-life is when 70-80% of original energy capacity remain;, however, little analysis is available to support this retirement threshold. By applying detailed physics-based models of EVs with data on how drivers use their cars, we show that EV batteries continue to meet daily travel needs of drivers well beyond capacity fade of 80% remaining energy storage capacity. Further, we show that EV batteries with substantial energy capacity fade continue to provide sufficient buffer charge for unexpected trips with long distances. We show that enabling charging in more locations, even if only with 120 V wall outlets, prolongs useful life of EV batteries. Battery power fade is also examined and we show EVs meet performance requirements even down to 30% remaining power capacity. Our findings show that defining battery retirement at 70-80% remaining capacity is inaccurate. Battery retirement should instead be governed by when batteries no longer satisfy daily travel needs of a driver. Using this alternative retirement metric, we present results on the fraction of EV batteries that may be retired with different levels of energy capacity fade.

  15. Quantifying EV battery end-of-life through analysis of travel needs with vehicle powertrain models

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

    Saxena, Samveg; Le Floch, Caroline; MacDonald, Jason; Moura, Scott

    2015-05-15

    Electric vehicles enable clean and efficient transportation; however, concerns about range anxiety and battery degradation hinder EV adoption. The common definition for battery end-of-life is when 70-80% of original energy capacity remain;, however, little analysis is available to support this retirement threshold. By applying detailed physics-based models of EVs with data on how drivers use their cars, we show that EV batteries continue to meet daily travel needs of drivers well beyond capacity fade of 80% remaining energy storage capacity. Further, we show that EV batteries with substantial energy capacity fade continue to provide sufficient buffer charge for unexpected tripsmore » with long distances. We show that enabling charging in more locations, even if only with 120 V wall outlets, prolongs useful life of EV batteries. Battery power fade is also examined and we show EVs meet performance requirements even down to 30% remaining power capacity. Our findings show that defining battery retirement at 70-80% remaining capacity is inaccurate. Battery retirement should instead be governed by when batteries no longer satisfy daily travel needs of a driver. Using this alternative retirement metric, we present results on the fraction of EV batteries that may be retired with different levels of energy capacity fade.« less

  16. Characterization of Traveling Wave Ion Mobility Separations in Structures for Lossless Ion Manipulations

    SciTech Connect (OSTI)

    Hamid, Ahmed M.; Ibrahim, Yehia M.; Garimella, Venkata BS; Webb, Ian K.; Deng, Liulin; Chen, Tsung-Chi; Anderson, Gordon A.; Prost, Spencer A.; Norheim, Randolph V.; Tolmachev, Aleksey V.; Smith, Richard D.

    2015-10-28

    We report on the development and characterization of a new traveling wave-based Structure for Lossless Ion Manipulations (TW-SLIM) for ion mobility separations (IMS). The TW-SLIM module uses a parallel array of RF electrodes for ion confinement, spaced by an array of short DC electrodes to which a TW can be applied to drive ion motion. The ability of the TW-SLIM for efficient ion confinement, lossless ion transport, and ion mobility separations at different RF and TW parameters is reported. The TW-SLIM module is shown to allow transfers a wide mass range of ions (200-2500 Da) utilizing a confining RF waveform (1 MHz and 300 Vp-p), and low TW amplitudes (<20 V). Also, the short module achieved an ion mobility peak capacity of 24 and a peak generation rate of 1014 s-1 for TW speeds of <210 m/s. TW-SLIM performance was characterized over a wide range of RF and DC voltage parameters, and demonstrated robust performance. The combined attributes of flexible design and low voltage requirements for traveling wave IMS, provide a basis for SLIM devices incorporating extended series of ion manipulations.

  17. Simulation studies on the standing and traveling wave thermoacoustic prime movers

    SciTech Connect (OSTI)

    Skaria, Mathew; Rasheed, K. K. Abdul; Shafi, K. A.; Kasthurirengan, S.; Behera, Upendra

    2014-01-29

    Thermoacoustic systems have been a focus of recent research due to its structural simplicity, high reliability due to absence of moving parts, and can be driven by low grade energy such as fuel, gas, solar energy, waste heat etc. There has been extensive research on both standing wave and traveling wave systems. Towards the development of such systems, simulations can be carried out by several methods such as (a) solving the energy equation, (b) enthalpy flow model, (c) DeltaEC, a free software available from LANL, USA (d) Computational Fluid Dynamics (CFD) etc. We present here the simulation studies of standing wave and traveling wave thermoacoustic prime movers using CFD and DeltaEC. The CFD analysis is carried out using Fluent 6.3.26, incorporating the necessary boundary conditions with different working fluids at different operating pressures. The results obtained by CFD are compared with those obtained using DeltaEC. Also, the CFD simulation of the thermoacoustically driven refrigerator is presented.

  18. New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eberts, E.; Eudy, L.

    2006-01-01

    This report focuses on the evaluation of compressed natural gas (CNG) and diesel hybrid electric bus propulsion systems in New York City Transit's transit buses.

  19. SunLine Transit Agency, Hydrogen-Powered Transit Buses: Preliminary Evaluation Results

    Broader source: Energy.gov [DOE]

    This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency.

  20. SunLine Transit Agency, Hydrogen Powered Transit Buses: Preliminary Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2007-02-01

    This paper provides preliminary results from an evaluation by DOE's National Renewable Energy Laboratory of hydrogen-powered transit buses at SunLine Transit Agency.

  1. Process for improving metal production in steelmaking processes

    DOE Patents [OSTI]

    Pal, U.B.; Gazula, G.K.M.; Hasham, A.

    1996-06-18

    A process and apparatus for improving metal production in ironmaking and steelmaking processes is disclosed. The use of an inert metallic conductor in the slag containing crucible and the addition of a transition metal oxide to the slag are the disclosed process improvements. 6 figs.

  2. Process for improving metal production in steelmaking processes

    DOE Patents [OSTI]

    Pal, Uday B.; Gazula, Gopala K. M.; Hasham, Ali

    1996-01-01

    A process and apparatus for improving metal production in ironmaking and steelmaking processes is disclosed. The use of an inert metallic conductor in the slag containing crucible and the addition of a transition metal oxide to the slag are the disclosed process improvements.

  3. NNSA Transitions Radiation Detection System at Port of Laem Chabang...

    National Nuclear Security Administration (NNSA)

    ... NNSA scientists find more effective ways to detect nuclear explosions near and far NNSA Deputy Administrator Creedon Travels to China NNSA Delivers Annual Reports to Congress on ...

  4. Electronic transitions of palladium dimer

    SciTech Connect (OSTI)

    Qian, Yue; Ng, Y. W.; Chen, Zhihua; Cheung, A. S.-C., E-mail: hrsccsc@hku.hk [Department of Chemistry, The University of Hong Kong, Pokfulam Road (Hong Kong)

    2013-11-21

    The laser induced fluorescence spectrum of palladium dimer (Pd{sub 2}) in the visible region between 480 and 700 nm has been observed and analyzed. The gas-phase Pd{sub 2} molecule was produced by laser ablation of palladium metal rod. Eleven vibrational bands were observed and assigned to the [17.1] {sup 3}II{sub g} - X{sup 3}?{sub u}{sup +} transition system. The bond length (r{sub o}) and vibrational frequency (?G{sub 1/2}) of the ground X{sup 3}?{sub u}{sup +} state were determined to be 2.47(4) and 211.4(5) cm{sup ?1}, respectively. A molecular orbital energy level diagram was used to understand the observed ground and excited electronic states. This is the first gas-phase experimental investigation of the electronic transitions of Pd{sub 2}.

  5. Articulated transition duct in turbomachine

    SciTech Connect (OSTI)

    Flanagan, James Scott; McMahan, Kevin Weston; LeBegue, Jeffrey Scott; Pentecost, Ronnie Ray

    2014-04-29

    Turbine systems are provided. A turbine system includes a transition duct comprising an inlet, an outlet, and a duct passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The duct passage includes an upstream portion and a downstream portion. The upstream portion extends from the inlet between an inlet end and an aft end. The downstream portion extends from the outlet between an outlet end and a head end. The turbine system further includes a joint coupling the aft end of the upstream portion and the head end of the downstream portion together. The joint is configured to allow movement of the upstream portion and the downstream portion relative to each other about or along at least one axis.

  6. Fast flux test facility, transition project plan

    SciTech Connect (OSTI)

    Guttenberg, S.

    1994-11-15

    The FFTF Transition Project Plan, Revision 1, provides changes and project baseline for the deactivation activities necessary to transition the FFTF to a radiologically and industrially safe shutdown condition.

  7. [Trip report of travel to Las Vegas to consider specification for the Integrated Data System (IDS) with administrative memos]. Volume 1, FY92--FY93

    SciTech Connect (OSTI)

    Hall, J.

    1994-12-15

    This document is a compilation of travel reports and memorandums that are the results of planning between Los Alamos National Laboratory and Computer Applications Group, Inc.

  8. Recommendation 198: Establish a site transition process

    Broader source: Energy.gov [DOE]

    The ORSSAB recommends DOE Establish a Site Transition Process Upon Completion of Remediation at Ongoing Mission Sites.

  9. Contact Technology Transitions | Department of Energy

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

    Contact Technology Transitions Contact Technology Transitions Please use this form to send us your comments, report problems, and/or ask questions about information on the Office of Technology Transition website. All entries on the form will go to the Office of Technology Transitions at the Department of Energy. If you wish to contact a specific laboratory, please do so directly on this page. Your Email Message Here * CAPTCHA This question is for testing whether you are a human visitor and to

  10. Site Transition Guidance | Department of Energy

    Energy Savers [EERE]

    Guidance Site Transition Guidance On June 16, 2004, Michael W. Owen, Director, Office of Legacy Management (LM) and Jessie H. Roberson, Assistant Secretary, Office of Environmental Management (EM) co-signed a memorandum titled "Transition of Sites from Environmental Management." The memorandum described EM's and LM's expectations on site transition process and requirements. PDF icon Site Transition Guidance More Documents & Publications EM Recovery Act Lessons Learned (Johnson)

  11. AVTA: Transit Vehicle Specifications and Test Procedures | Department...

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

    Transit Vehicle Specifications and Test Procedures AVTA: Transit Vehicle Specifications and Test Procedures All Advanced Vehicle Testing Activity transit projects follow a rigorous ...

  12. Cape Cod Regional Transit Authority | Open Energy Information

    Open Energy Info (EERE)

    Cod Regional Transit Authority Jump to: navigation, search Name Cape Cod Regional Transit Authority Facility Cape Cod Regional Transit Authority Sector Wind energy Facility Type...

  13. Traveling wave parametric amplifier with Josephson junctions using minimal resonator phase matching

    SciTech Connect (OSTI)

    White, T. C.; Mutus, J. Y.; Hoi, I.-C.; Barends, R.; Campbell, B.; Chen, Yu; Chen, Z.; Chiaro, B.; Dunsworth, A.; Jeffrey, E.; Kelly, J.; Neill, C.; O'Malley, P. J. J.; Roushan, P.; Sank, D.; Vainsencher, A.; Wenner, J.; Martinis, John M.; Megrant, A.; Chaudhuri, S.; and others

    2015-06-15

    Josephson parametric amplifiers have become a critical tool in superconducting device physics due to their high gain and quantum-limited noise. Traveling wave parametric amplifiers (TWPAs) promise similar noise performance, while allowing for significant increases in both bandwidth and dynamic range. We present a TWPA device based on an LC-ladder transmission line of Josephson junctions and parallel plate capacitors using low-loss amorphous silicon dielectric. Crucially, we have inserted ?/4 resonators at regular intervals along the transmission line in order to maintain the phase matching condition between pump, signal, and idler and increase gain. We achieve an average gain of 12?dB across a 4?GHz span, along with an average saturation power of ?92 dBm with noise approaching the quantum limit.

  14. Preliminary performance of the MKII 17 GHz traveling wave relativistic klystron

    SciTech Connect (OSTI)

    Haimson, J.; Mecklenburg, B.; Stowell, G.; Kreischer, K. E.; Mastovsky, I. [Haimson Research Corporation, 3350 Scott Blvd., Building 60, Santa Clara, California 95054-3104 (United States); Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4294 (United States)

    1999-05-07

    Initial test results are presented of an upgraded RF source developed for high peak power 17 GHz linear accelerator applications. The objectives of this upgrade program were (a) to increase the output capability of the existing vacuum demountable prototype tube so that RF power could also be supplied to a future 2 MeV photoinjector system without appreciable loss of input power to the 17 GHz linac and (b) to investigate the performance of a new design traveling wave output circuit incorporating a racetrack shaped dual output coupler with 5% bandwidth high peak power ceramic RF windows. These recently installed devices are presently being conditioned and tested at the MIT Plasma Science and Fusion Center.

  15. Preliminary performance of the MKII 17 GHz traveling wave relativistic klystron

    SciTech Connect (OSTI)

    Haimson, J.; Mecklenburg, B.; Stowell, G. [Haimson Research Corporation, 3350 Scott Blvd., Building 60, Santa Clara, California 95054-3104 (United States); Kreischer, K.E.; Mastovsky, I. [Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4294 (United States)

    1999-05-01

    Initial test results are presented of an upgraded RF source developed for high peak power 17 GHz linear accelerator applications. The objectives of this upgrade program were (a) to increase the output capability of the existing vacuum demountable prototype tube so that RF power could also be supplied to a future 2 MeV photoinjector system without appreciable loss of input power to the 17 GHz linac and (b) to investigate the performance of a new design traveling wave output circuit incorporating a racetrack shaped dual output coupler with 5{percent} bandwidth high peak power ceramic RF windows. These recently installed devices are presently being conditioned and tested at the MIT Plasma Science and Fusion Center. {copyright} {ital 1999 American Institute of Physics.}

  16. Metal to semiconductor transition in metallic transition metal dichalcogenides

    SciTech Connect (OSTI)

    Li, Yan; Kang, Jun; Li, Jingbo; Tongay, Sefaattin; Wu, Junqiao; Yue, Qu

    2013-11-07

    We report on tuning the electronic and magnetic properties of metallic transition metal dichalcogenides (mTMDCs) by 2D to 1D size confinement. The stability of the mTMDC monolayers and nanoribbons is demonstrated by the larger binding energy compared to the experimentally available semiconducting TMDCs. The 2D MX{sub 2} (M?=?Nb, Ta; X?=?S, Se) monolayers are non-ferromagnetic metals and mechanically softer compared to their semiconducting TMDCs counterparts. Interestingly, mTMDCs undergo metal-to-semiconductor transition when the ribbon width approaches to ?13? and ?7? for zigzag and armchair edge terminations, respectively; then these ribbons convert back to metal when the ribbon widths further decrease. Zigzag terminated nanoribbons are ferromagnetic semiconductors, and their magnetic properties can also be tuned by hydrogen edge passivation, whereas the armchair nanoribbons are non-ferromagnetic semiconductors. Our results display that the mTMDCs offer a broad range of physical properties spanning from metallic to semiconducting and non-ferromagnetic to ferromagnetic that is ideal for applications where stable narrow bandgap semiconductors with different magnetic properties are desired.

  17. LTS Transition and Timeline - Hanford Site

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

    Transition and Timeline About Us LTS Home Page LTS Project Management LTS Transition and Timeline LTS Execution LTS Background LTS Information Management LTS Fact Sheets / Briefings LTS In The News LTS Related Links LTS Contact Us LTS Transition and Timeline Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Transition Map Please click on area to see more information Transition Map Segment 1 : Area Size 18,161 acres, 28 sq mi Segment 2 20,080 acres (31 sq mi) Segment

  18. Making the transition to automation

    SciTech Connect (OSTI)

    Christenson, D.J. )

    1992-10-01

    By 1995, the Bureau of Reclamation's hydropower plant near Hungry Horse, Montana, will be remotely operated from Grand Coulee dam (about 300 miles away) in Washington State. Automation at Hungry Horse will eliminate the need for four full-time power plant operators. Between now and then, a transition plan that offers employees choices for retraining, transferring, or taking early retirement will smooth the transition in reducing from five operators to one. The transition plan also includes the use of temporary employees to offset risks of reducing staff too soon. When completed in 1953, the Hungry Horse structure was the world's fourth largest and fourth highest concrete dam. The arch-gravity structure has a crest length of 2,115 feet; it is 3,565 feet above sea level. The four turbine-generator units in the powerhouse total 284 MW, and supply approximately 1 billion kilowatt-hours of electricity annually to the federal power grid managed by the Bonneville Power Administration. In 1988, Reclamation began to automate operations at many of its hydro plants, and to establish centralized control points. The control center concept will increase efficiency. It also will coordinate water movements and power supply throughout the West. In the Pacific Northwest, the Grand Coulee and Black Canyon plants are automated control centers. Several Reclamation-owned facilities in the Columbia River Basin, including Hungry Horse, will be connected to these centers via microwave and telephone lines. When automation is complete, constant monitoring by computer will replace hourly manual readings and equipment checks. Computers also are expected to increase water use efficiency by 1 to 2 percent by ensuring operation for maximum turbine efficiency. Unit efficiency curves for various heads will be programmed into the system.

  19. Shim for sealing transition pieces

    DOE Patents [OSTI]

    Lacy, Benjamin Paul; Demiroglu, Mehmet; Sarawate, Neelesh Nandkumar

    2012-07-24

    According to one aspect of the invention, a shim for sealing two adjacent turbine transition pieces is disclosed. The shim includes a circumferential member that includes a first lateral flange and a second lateral flange. Further, the first and second lateral flanges each comprise a tab configured to mate to a first surface plane and the first and second lateral flanges are configured to mate to a second surface plane, wherein the first and second surface planes are substantially parallel. In addition, the shim includes a first flange extending substantially perpendicular from the circumferential member.

  20. Transition section for acoustic waveguides

    DOE Patents [OSTI]

    Karplus, H.H.B.

    1975-10-28

    A means of facilitating the transmission of acoustic waves with minimal reflection between two regions having different specific acoustic impedances is described comprising a region exhibiting a constant product of cross-sectional area and specific acoustic impedance at each cross-sectional plane along the axis of the transition region. A variety of structures that exhibit this feature is disclosed, the preferred embodiment comprising a nested structure of doubly reentrant cones. This structure is useful for monitoring the operation of nuclear reactors in which random acoustic signals are generated in the course of operation.

  1. Low floor mass transit vehicle

    DOE Patents [OSTI]

    Emmons, J. Bruce; Blessing, Leonard J.

    2004-02-03

    A mass transit vehicle includes a frame structure that provides an efficient and economical approach to providing a low floor bus. The inventive frame includes a stiff roof panel and a stiff floor panel. A plurality of generally vertical pillars extend between the roof and floor panels. A unique bracket arrangement is disclosed for connecting the pillars to the panels. Side panels are secured to the pillars and carry the shear stresses on the frame. A unique seating assembly that can be advantageously incorporated into the vehicle taking advantage of the load distributing features of the inventive frame is also disclosed.

  2. Buckling transition in long ?-helices

    SciTech Connect (OSTI)

    Palen?r, Peter; Bleha, Tom

    2014-11-07

    The treatment of bending and buckling of stiff biopolymer filaments by the popular worm-like chain model does not provide adequate understanding of these processes at the microscopic level. Thus, we have used the atomistic molecular-dynamic simulations and the Amber03 force field to examine the compression buckling of ?-helix (AH) filaments at room temperature. It was found that the buckling instability occurs in AHs at the critical force f{sub c} in the range of tens of pN depending on the AH length. The decrease of the force f{sub c} with the contour length follows the prediction of the classic thin rod theory. At the force f{sub c} the helical filament undergoes the swift and irreversible transition from the smoothly bent structure to the buckled one. A sharp kink in the AH contour arises at the transition, accompanied by the disruption of the hydrogen bonds in its vicinity. The kink defect brings in an effective softening of the AH molecule at buckling. Nonbonded interactions between helical branches drive the rearrangement of a kinked AH into the ultimate buckled structure of a compact helical hairpin described earlier in the literature.

  3. Terms and Conditions for Site Transition | Department of Energy

    Energy Savers [EERE]

    Terms and Conditions for Site Transition Terms and Conditions for Site Transition Terms and Conditions for Site Transition PDF icon Terms and Conditions for Site Transition More Documents & Publications Development of Site Transition Plan, Use of the Site Transition Framework, and Terms and Conditions for Site Transition Terms and Conditions for EM Clean Up to the Office of Science Site Transition Framework for Long-Term Surveillance and Maintenance

  4. Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report and Appendices

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-07-01

    This report describes operations at Alameda-Contra Costa Transit district for three protoype fuel cell buses and six diesel buses operating from the same location.

  5. Transition of Sites from Environmental Management Memorandum of

    Energy Savers [EERE]

    Understanding | Department of Energy Transition of Sites from Environmental Management Memorandum of Understanding Transition of Sites from Environmental Management Memorandum of Understanding Transition of Sites from Environmental Management Memorandum of Understanding PDF icon Transition of Sites from Environmental Management Memorandum of Understanding More Documents & Publications Site Transition Guidance Transition of Long-Term Response Action Management Requirements Development of

  6. Synthesis of transition metal carbonitrides

    DOE Patents [OSTI]

    Munir, Zuhair A. R.; Eslamloo-Grami, Maryam

    1994-01-01

    Transition metal carbonitrides (in particular, titanium carbonitride, TiC.sub.0.5 N.sub.0.5) are synthesized by a self-propagating reaction between the metal (e.g., titanium) and carbon in a nitrogen atmosphere. Complete conversion to the carbonitride phase is achieved with the addition of TiN as diluent and with a nitrogen pressure .gtoreq.0.6 MPa. Thermodynamic phase-stability calculations and experimental characterizations of quenched samples provided revealed that the mechanism of formation of the carbonitride is a two-step process. The first step involves the formation of the nonstoichiometric carbide, TiC.sub.0.5, and is followed by the formation of the product by the incorporation of nitrogen in the defect-structure carbide.

  7. the-schedule-based-transit-model

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

    The Schedule-Based transit model of the Chicago Metropolitan Area Vadim Sokolov Transportation Research and Analysis Computing Center Argonne National Laboratory List of Authors ================ Vadim Sokolov Transportation Research and Analysis Computing Center Argonne National Laboratory 277 International Drive West Chicago, IL 60185 Abstract ========= Usually public transit systems are modeled using so called frequency based approach. In this case transit route times are defined in terms of

  8. Analysis of Nuclear Quantum Phase Transitions

    SciTech Connect (OSTI)

    Li, Z. P.; Meng, J.; Niksic, T.; Vretenar, D.; Lalazissis, G. A.; Ring, P.

    2009-08-26

    A microscopic analysis, based on nuclear energy density functionals, is presented for shape phase transitions in Nd isotopes. Low-lying excitation spectra and transition probabilities are calculated starting from a five-dimensional Hamiltonian, with parameters determined by constrained relativistic mean-field calculations for triaxial shapes. The results reproduce available data, and show that there is an abrupt change of structure at N = 90, that corresponds to a first-order quantum phase transition between spherical and axially deformed shapes.

  9. Power Marketing Administrations Leading the Nation's Transition...

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

    Leading the Nation's Transition to a 21st Century Electric Grid Power Marketing ... The Energy Department's Power Marketing Administrations (PMAs) play a vital role in ...

  10. Infrared extrapolations of quadrupole moments and transitions...

    Office of Scientific and Technical Information (OSTI)

    quadrupole moments and transitions Citation Details In-Document Search This content will become publicly available on April 25, 2017 Title: Infrared extrapolations of quadrupole ...

  11. Deputy Director, Office of Technology Transitions

    Broader source: Energy.gov [DOE]

    The Office of Technology Transitions (OTT) is responsible for developing and overseeing the delivery of the DOE strategic vision and goals for technology commercialization and engagement with the...

  12. Building America Expert Meeting: Transitioning Traditional HVAC...

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

    IBACOS held an Expert Meeting on the topic of Transitioning Traditional HVAC Contractors to Whole House Performance Contractors on March 29, 2011 in San Francisco, CA. The major ...

  13. Aspects of the non-zonal transition

    SciTech Connect (OSTI)

    Pueschel, M. J.; Terry, P. W. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)] [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Hatch, D. R. [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)] [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)

    2014-05-15

    The non-zonal transition, a process which can bring about very large heat fluxes in gyrokinetic simulations, occurs once a certain threshold plasma ? is reached. This threshold is parameterized via a simulation database, yielding an expression estimating at what ? a given system may approach the transition. Furthermore, the diffusive outward transport of a heat blob in a temperature profile marginally stable with respect to the non-zonal transition is discussed: the resulting transport timescale combines the underlying turbulent transport timescale and the linear instability growth time, thus demonstrating that the non-zonal transition provides a mechanism for very fast heat dissipation.

  14. Fuel Cells Technology Transit | Open Energy Information

    Open Energy Info (EERE)

    Fuel Cells Technology Transit Place: Clearwater, Florida Zip: 33767 Sector: Hydro, Hydrogen Product: Involved in the development and research of energy models on Hydrogen Energy...

  15. NO TRANSIT TIMING VARIATIONS IN WASP-4

    SciTech Connect (OSTI)

    Petrucci, R.; Schwartz, M.; Buccino, A. P.; Mauas, P. J. D.; Jofr, E.; Cneo, V.; Gmez, M.; Martnez, C.

    2013-12-20

    We present six new transits of the system WASP-4. Together with 28 light curves published in the literature, we perform a homogeneous study of its parameters and search for variations in the transits' central times. The final values agree with those previously reported, except for a slightly lower inclination. We find no significant long-term variations in i or R{sub P} /R {sub *}. The O-C mid-transit times do not show signs of transit timing variations greater than 54s.

  16. SENSITIVITY OF HELIOSEISMIC TRAVEL TIMES TO THE IMPOSITION OF A LORENTZ FORCE LIMITER IN COMPUTATIONAL HELIOSEISMOLOGY

    SciTech Connect (OSTI)

    Moradi, Hamed; Cally, Paul S.

    2014-02-20

    The rapid exponential increase in the Alfvn wave speed with height above the solar surface presents a serious challenge to physical modeling of the effects of magnetic fields on solar oscillations, as it introduces a significant Courant-Friedrichs-Lewy time-step constraint for explicit numerical codes. A common approach adopted in computational helioseismology, where long simulations in excess of 10 hr (hundreds of wave periods) are often required, is to cap the Alfvn wave speed by artificially modifying the momentum equation when the ratio between the Lorentz and hydrodynamic forces becomes too large. However, recent studies have demonstrated that the Alfvn wave speed plays a critical role in the MHD mode conversion process, particularly in determining the reflection height of the upwardly propagating helioseismic fast wave. Using numerical simulations of helioseismic wave propagation in constant inclined (relative to the vertical) magnetic fields we demonstrate that the imposition of such artificial limiters significantly affects time-distance travel times unless the Alfvn wave-speed cap is chosen comfortably in excess of the horizontal phase speeds under investigation.

  17. A nonlinear analysis of the terahertz serpentine waveguide traveling-wave amplifier

    SciTech Connect (OSTI)

    Li, Ke Cao, Miaomiao; Liu, Wenxin Wang, Yong

    2015-04-15

    A nonlinear model for the numerical simulation of terahertz serpentine waveguide traveling-wave tube (SW-TWT) is described. In this model, the electromagnetic wave transmission in the SW is represented as an infinite set of space harmonics to interact with an electron beam. Analytical expressions for axial electric fields in axisymmetric interaction gaps of SW-TWTs are derived and compared with the results from CST simulation. The continuous beam is treated as discrete macro-particles with different initial phases. The beam-tunnel field equations, space-charge field equations, and motion equations are combined to solve the beam-wave interaction. The influence of backward wave and relativistic effect is also considered in the series of equations. The nonlinear model is used to design a 340 GHz SW-TWT. Several favorable comparisons of model predictions with results from a 3-D Particle-in-cell simulation code CHIPIC are presented, in which the output power versus beam voltage and interaction periods are illustrated. The relative error of the predicted output power is less than 15% in the 3 dB bandwidth and the relative error of the saturated length is less than 8%.The results show that the 1-D nonlinear analysis model is appropriate to solve the terahertz SW-TWT operation characteristics.

  18. Quality analysis of the solution produced by dissection algorithms applied to the traveling salesman problem

    SciTech Connect (OSTI)

    Cesari, G.

    1994-12-31

    The aim of this paper is to analyze experimentally the quality of the solution obtained with dissection algorithms applied to the geometric Traveling Salesman Problem. Starting from Karp`s results. We apply a divide and conquer strategy, first dividing the plane into subregions where we calculate optimal subtours and then merging these subtours to obtain the final tour. The analysis is restricted to problem instances where points are uniformly distributed in the unit square. For relatively small sets of cities we analyze the quality of the solution by calculating the length of the optimal tour and by comparing it with our approximate solution. When the problem instance is too large we perform an asymptotical analysis estimating the length of the optimal tour. We apply the same dissection strategy also to classical heuristics by calculating approximate subtours and by comparing the results with the average quality of the heuristic. Our main result is the estimate of the rate of convergence of the approximate solution to the optimal solution as a function of the number of dissection steps, of the criterion used for the plane division and of the quality of the subtours. We have implemented our programs on MUSIC (MUlti Signal processor system with Intelligent Communication), a Single-Program-Multiple-Data parallel computer with distributed memory developed at the ETH Zurich.

  19. Outside the Continental United States International Travel and Contagion Impact Quick Look Tool

    SciTech Connect (OSTI)

    Corley, Courtney D.; Lancaster, Mary J.; Brigantic, Robert T.; Kunkel, Brenda M.; Muller, George; McKenzie, Taylor K.

    2012-11-09

    ABSTRACT This paper describes a tool that will allow public health analysts to estimate infectious disease risk at the country level as a function of different international transportation modes. The prototype focuses on a cholera epidemic originating within Latin America or the Caribbean, but it can be expanded to consider other pathogens as well. This effort leverages previous work in collaboration with the Centers for Disease Control and Prevention to develop the International Travel to Community Impact (IT-CI) model, which analyzes and assesses potential international disease outbreaks then estimates the associated impacts to U.S. communities and the nation as a whole and orient it for use Outside the Continental United States (OCONUS). For brevity, we refer to this refined model as OIT-CI. First, we developed an operationalized meta-population spatial cholera model for Latin America and the Caribbean at the secondary administrative-level boundary. Secondly, we developed a robust function of human airline critical to approximating mixing patterns in the meta- population model. In the prototype version currently presented here, OIT-CI models a cholera epidemic originating in a Latin American or Caribbean country and spreading via airline transportation routes. Disease spread is modeled at the country level using a patch model with a connectivity function based on demographic, geospatial, and human transportation data. We have also identified data to estimate the water and health-related infrastructure capabilities of each country to include this potential impact on disease transmission.

  20. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation...

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

    SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update This report provides an update on the evaluation results for hydrogen and CNG-fueled buses ...

  1. Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses

    SciTech Connect (OSTI)

    Melendez, M.; Taylor, J.; Wayne, W. S.; Smith, D.; Zuboy, J.

    2005-12-01

    An evaluation of emissions of natural gas and diesel buses operated by the Washington Metro Area Transit Authority.

  2. Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses

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

    Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses M. Melendez, J. Taylor, and J. Zuboy National Renewable Energy Laboratory W.S. Wayne West Virginia University D. Smith U.S. Department of Energy Technical Report NREL/TP-540-36355 December 2005 Emission Testing of Washington Metropolitan Area Transit Authority (WMATA) Natural Gas and Diesel Transit Buses M. Melendez, J. Taylor, and J. Zuboy National Renewable Energy Laboratory W.S.

  3. New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results

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

    New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results K. Chandler and E. Eberts Battelle L. Eudy National Renewable Energy Laboratory Technical Report NREL/TP-540-38843 January 2006 New York City Transit Hybrid and CNG Transit Buses: Interim Evaluation Results K. Chandler and E. Eberts Battelle L. Eudy National Renewable Energy Laboratory Prepared under Task No. FC06.3000 Technical Report NREL/TP-540-38843 January 2006 National Renewable Energy Laboratory 1617 Cole

  4. Energy Transition Initiative: Islands Playbook (Book)

    SciTech Connect (OSTI)

    Not Available

    2015-01-01

    The Island Energy Playbook (the Playbook) provides an action-oriented guide to successfully initiating, planning, and completing a transition to an energy system that primarily relies on local resources to eliminate a dependence on one or two imported fuels. It is intended to serve as a readily available framework that any community can adapt to organize its own energy transition effort.

  5. Method for dry etching of transition metals

    DOE Patents [OSTI]

    Ashby, C.I.H.; Baca, A.G.; Esherick, P.; Parmeter, J.E.; Rieger, D.J.; Shul, R.J.

    1998-09-29

    A method for dry etching of transition metals is disclosed. The method for dry etching of a transition metal (or a transition metal alloy such as a silicide) on a substrate comprises providing at least one nitrogen- or phosphorus-containing {pi}-acceptor ligand in proximity to the transition metal, and etching the transition metal to form a volatile transition metal/{pi}-acceptor ligand complex. The dry etching may be performed in a plasma etching system such as a reactive ion etching (RIE) system, a downstream plasma etching system (i.e. a plasma afterglow), a chemically-assisted ion beam etching (CAIBE) system or the like. The dry etching may also be performed by generating the {pi}-acceptor ligands directly from a ligand source gas (e.g. nitrosyl ligands generated from nitric oxide), or from contact with energized particles such as photons, electrons, ions, atoms, or molecules. In some preferred embodiments of the present invention, an intermediary reactant species such as carbonyl or a halide ligand is used for an initial chemical reaction with the transition metal, with the intermediary reactant species being replaced at least in part by the {pi}-acceptor ligand for forming the volatile transition metal/{pi}-acceptor ligand complex.

  6. Method for dry etching of transition metals

    DOE Patents [OSTI]

    Ashby, Carol I. H.; Baca, Albert G.; Esherick, Peter; Parmeter, John E.; Rieger, Dennis J.; Shul, Randy J.

    1998-01-01

    A method for dry etching of transition metals. The method for dry etching of a transition metal (or a transition metal alloy such as a silicide) on a substrate comprises providing at least one nitrogen- or phosphorous-containing .pi.-acceptor ligand in proximity to the transition metal, and etching the transition metal to form a volatile transition metal/.pi.-acceptor ligand complex. The dry etching may be performed in a plasma etching system such as a reactive ion etching (RIE) system, a downstream plasma etching system (i.e. a plasma afterglow), a chemically-assisted ion beam etching (CAIBE) system or the like. The dry etching may also be performed by generating the .pi.-acceptor ligands directly from a ligand source gas (e.g. nitrosyl ligands generated from nitric oxide), or from contact with energized particles such as photons, electrons, ions, atoms, or molecules. In some preferred embodiments of the present invention, an intermediary reactant species such as carbonyl or a halide ligand is used for an initial chemical reaction with the transition metal, with the intermediary reactant species being replaced at least in part by the .pi.-acceptor ligand for forming the volatile transition metal/.pi.-acceptor ligand complex.

  7. QCD Phase Transitions, Volume 15

    SciTech Connect (OSTI)

    Schaefer, T.; Shuryak, E.

    1999-03-20

    The title of the workshop, ''The QCD Phase Transitions'', in fact happened to be too narrow for its real contents. It would be more accurate to say that it was devoted to different phases of QCD and QCD-related gauge theories, with strong emphasis on discussion of the underlying non-perturbative mechanisms which manifest themselves as all those phases. Before we go to specifics, let us emphasize one important aspect of the present status of non-perturbative Quantum Field Theory in general. It remains true that its studies do not get attention proportional to the intellectual challenge they deserve, and that the theorists working on it remain very fragmented. The efforts to create Theory of Everything including Quantum Gravity have attracted the lion share of attention and young talent. Nevertheless, in the last few years there was also a tremendous progress and even some shift of attention toward emphasis on the unity of non-perturbative phenomena. For example, we have seen some efforts to connect the lessons from recent progress in Supersymmetric theories with that in QCD, as derived from phenomenology and lattice. Another example is Maldacena conjecture and related development, which connect three things together, string theory, super-gravity and the (N=4) supersymmetric gauge theory. Although the progress mentioned is remarkable by itself, if we would listen to each other more we may have chance to strengthen the field and reach better understanding of the spectacular non-perturbative physics.

  8. On the dispersion relation of the transit time instability in inverted fireballs

    SciTech Connect (OSTI)

    Gruenwald, J.

    2014-08-15

    Recently discovered inverted fireballs are non-linear plasma phenomena, which are formed in hollow grid anodes with high transparency in an existing background plasma. If a sufficiently large potential is applied, accelerated electrons from the bulk start to oscillate through the grid. Experimental investigations have shown that they produce different types of plasma instabilities. One of those oscillations is a transit time instability which originates from strong electron beams that travel through the inverted fireball. This type of instability is similar to vircator reflex oscillations and produces radio frequency waves. Hence, it is suitable to convert DC signals into signals oscillating in the MHz range. This paper analyses the dispersion relation of the transit time instability for three different plasma regimes. The regimes can be divided into a collision less regime, a regime with high collisionality and one in between those former two. It is demonstrated that the plasma properties of the surrounding background plasma have a strong influence on the behavior of the instability itself.

  9. Uncertainty and Sensitivity of Contaminant Travel Times from the Upgradient Nevada Test Site to the Yucca Mountain Area

    SciTech Connect (OSTI)

    J. Zhu; K. Pohlmann; J. Chapman; C. Russell; R.W.H. Carroll; D. Shafer

    2009-09-10

    Yucca Mountain (YM), Nevada, has been proposed by the U.S. Department of Energy as the nation’s first permanent geologic repository for spent nuclear fuel and highlevel radioactive waste. In this study, the potential for groundwater advective pathways from underground nuclear testing areas on the Nevada Test Site (NTS) to intercept the subsurface of the proposed land withdrawal area for the repository is investigated. The timeframe for advective travel and its uncertainty for possible radionuclide movement along these flow pathways is estimated as a result of effective-porosity value uncertainty for the hydrogeologic units (HGUs) along the flow paths. Furthermore, sensitivity analysis is conducted to determine the most influential HGUs on the advective radionuclide travel times from the NTS to the YM area. Groundwater pathways are obtained using the particle tracking package MODPATH and flow results from the Death Valley regional groundwater flow system (DVRFS) model developed by the U.S. Geological Survey (USGS). Effectiveporosity values for HGUs along these pathways are one of several parameters that determine possible radionuclide travel times between the NTS and proposed YM withdrawal areas. Values and uncertainties of HGU porosities are quantified through evaluation of existing site effective-porosity data and expert professional judgment and are incorporated in the model through Monte Carlo simulations to estimate mean travel times and uncertainties. The simulations are based on two steady-state flow scenarios, the pre-pumping (the initial stress period of the DVRFS model), and the 1998 pumping (assuming steady-state conditions resulting from pumping in the last stress period of the DVRFS model) scenarios for the purpose of long-term prediction and monitoring. The pumping scenario accounts for groundwater withdrawal activities in the Amargosa Desert and other areas downgradient of YM. Considering each detonation in a clustered region around Pahute Mesa (in the NTS operational areas 18, 19, 20, and 30) under the water table as a particle, those particles from the saturated zone detonations were tracked forward using MODPATH to identify hydraulically downgradient groundwater discharge zones and to determine the particles from which detonations will intercept the proposed YM withdrawal area. Out of the 71 detonations in the saturated zone, the flowpaths from 23 of the 71 detonations will intercept the proposed YM withdrawal area under the pre-pumping scenario. For the 1998 pumping scenario, the flowpaths from 55 of the 71 detonations will intercept the proposed YM withdrawal area. Three different effective-porosity data sets compiled in support of regional models of groundwater flow and contaminant transport developed for the NTS and the proposed YM repository are used. The results illustrate that mean minimum travel time from underground nuclear testing areas on the NTS to the proposed YM repository area can vary from just over 700 to nearly 700,000 years, depending on the locations of the underground detonations, the pumping scenarios considered, and the effective-porosity value distributions used. Groundwater pumping scenarios are found to significantly impact minimum particle travel time from the NTS to the YM area by altering flowpath geometry. Pumping also attracts many more additional groundwater flowpaths from the NTS to the YM area. The sensitivity analysis further illustrates that for both the pre-pumping and 1998 pumping scenarios, the uncertainties in effective-porosity values for five of the 27 HGUs considered account for well over 90 percent of the effective-porosity-related travel time uncertainties for the flowpaths having the shortest mean travel times to YM.

  10. Fall 2007 American Geophysical Union Meeting Student Travel Support for Environmental Nanomaterials Session (#B35) (December 10-14, 2007)

    SciTech Connect (OSTI)

    Michael F. Hochella, Jr.

    2007-10-01

    The purpose of award no. DE-FG02-08ER15925 was to fund travel for students to present at the Fall 2007 American Geophysical Meeting. This was done successfully, and five students (Bin Xie, Qiaona Hu, Katie Schreiner, Daria Kibanova, and Frank-Andreas Weber) gave excellent oral and poster presentations at the meeting. Provided are the conference abstracts for their presentations.

  11. Traveling-wave laser-produced-plasma energy source for photoionization laser pumping and lasers incorporating said

    DOE Patents [OSTI]

    Sher, Mark H.; Macklin, John J.; Harris, Stephen E.

    1989-09-26

    A traveling-wave, laser-produced-plasma, energy source used to obtain single-pass gain saturation of a photoionization pumped laser. A cylindrical lens is used to focus a pump laser beam to a long line on a target. Grooves are cut in the target to present a surface near normal to the incident beam and to reduce the area, and hence increase the intensity and efficiency, of plasma formation.

  12. A technical review of urban land use - transportation models as tools for evaluating vehicle travel reduction strategies

    SciTech Connect (OSTI)

    Southworth, F.

    1995-07-01

    The continued growth of highway traffic in the United States has led to unwanted urban traffic congestion as well as to noticeable urban air quality problems. These problems include emissions covered by the 1990 Clean Air Act Amendments (CAAA) and 1991 Intermodal Surface Transportation Efficiency Act (ISTEA), as well as carbon dioxide and related {open_quotes}greenhouse gas{close_quotes} emissions. Urban travel also creates a major demand for imported oil. Therefore, for economic as well as environmental reasons, transportation planning agencies at both the state and metropolitan area level are focussing a good deal of attention on urban travel reduction policies. Much discussed policy instruments include those that encourage fewer trip starts, shorter trip distances, shifts to higher-occupancy vehicles or to nonvehicular modes, and shifts in the timing of trips from the more to the less congested periods of the day or week. Some analysts have concluded that in order to bring about sustainable reductions in urban traffic volumes, significant changes will be necessary in the way our households and businesses engage in daily travel. Such changes are likely to involve changes in the ways we organize and use traffic-generating and-attracting land within our urban areas. The purpose of this review is to evaluate the ability of current analytic methods and models to support both the evaluation and possibly the design of such vehicle travel reduction strategies, including those strategies involving the reorganization and use of urban land. The review is organized into three sections. Section 1 describes the nature of the problem we are trying to model, Section 2 reviews the state of the art in operational urban land use-transportation simulation models, and Section 3 provides a critical assessment of such models as useful urban transportation planning tools. A number of areas are identified where further model development or testing is required.

  13. Arranging Prescription Drug Coverage for Extended Stays (Travel or Long-Term Work Assignments) When Outside the United States

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

    Arranging Prescription Drug Coverage for Extended Stays (Travel or Long-Term Work Assignments) When Outside the United States Planning an extended vacation or working abroad? rx_lanl_override_0311 Maintaining prescription coverage and accessing care for long-term stays abroad What you need to know about override requests and obtaining Rx drugs. Your BCBSNM prescription drug coverage limits override requests to a 90-day supply. Override requests cannot be approved - and are not available -

  14. Registrations and vehicle miles of travel of light duty vehicles, 1985--1995

    SciTech Connect (OSTI)

    Hu, P.S.; Davis, S.C.; Schmoyer, R.L.

    1998-02-01

    To obtain vehicle registration data that consistently and accurately reflect the distinction between automobiles and light-duty trucks, Oak Ridge National Laboratory (ORNL) was asked by FHWA to estimate the current and historical vehicle registration numbers of automobiles and of other two-axle four-tire vehicles (i.e., light-duty trucks), and their associated travel. The term automobile is synonymous with passenger car. Passenger cars are defined as all sedans, coupes, and station wagons manufactured primarily for the purpose of carrying passengers. This includes taxicabs, rental cars, and ambulances and hearses on an automobile chassis. Light-duty trucks refer to all two-axle four-tire vehicles other than passenger cars. They include pickup trucks, panel trucks, delivery and passenger vans, and other vehicles such as campers, motor homes, ambulances on a truck chassis, hearses on a truck chassis, and carryalls. In this study, light-duty trucks include four major types: (1) pickup truck, (2) van, (3) sport utility vehicle, and (4) other 2-axle 4-tire truck. Specifically, this project re-estimates statistics that appeared in Tables MV-1 and MV-9 of the 1995 Highway Statistics. Given the complexity of the approach developed in this effort and the incompleteness and inconsistency of the state-submitted data, it is recommended that alternatives be considered by FHWA to obtain vehicle registration data. One alternative is the Polk`s NVPP data (via the US Department of Transportation`s annual subscription to Polk). The second alternative is to obtain raw registration files from individual states` Departments of Motor Vehicles and to decode individual VINs.

  15. Site Transition Process Upon Cleanup Completion | Department of Energy

    Energy Savers [EERE]

    Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion Site Transition Process Upon Cleanup Completion PDF icon Site Transition Process Upon Cleanup Completion More Documents & Publications Recommendation 198: Establish a site transition process Recommendation 218: Develop a Fact Sheet on Site Transition at On-going Mission Sites EM SSAB Conference Calls - January 27, 2011

  16. Thermal battery. [solid metal halide electrolytes with enhanced electrical conductance after a phase transition

    DOE Patents [OSTI]

    Carlsten, R.W.; Nissen, D.A.

    1973-03-06

    The patent describes an improved thermal battery whose novel design eliminates various disadvantages of previous such devices. Its major features include a halide cathode, a solid metal halide electrolyte which has a substantially greater electrical conductance after a phase transition at some temperature, and a means for heating its electrochemical cells to activation temperature.

  17. 2008_Transition_Program_Details_Book_Three.pdf | Department of...

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

    08TransitionProgramDetailsBookThree.pdf 2008TransitionProgramDetailsBookThree.pdf PDF icon 2008TransitionProgramDetailsBookThree.pdf More Documents & Publications ...

  18. Ergonomic Improvements for Foundries

    SciTech Connect (OSTI)

    Frank Peters; Patrick Patterson

    2002-06-18

    The goal of this project was to make improvements to the production systems of the steel casting industry through ergonomic improvements. Because of the wide variety of products, the wide range of product sizes, and the relatively small quantities of any particular product, manual operations remain a vital part of the production systems of the steel casting companies. Ergonomic improvements will assist the operators to more efficiently and consistently produce quality products.

  19. Knoxville Area Transit: Propane Hybrid Electric Trolleys

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    A 2-page fact sheet summarizing the evaluation done by the U.S. Department of Energy's Advanced Vehicle Testing Activity on the Knoxville Area Transit's use of propane hybrid electric trolleys.

  20. ARM - Field Campaign - RS-90 Transition IOP

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

    govCampaignsRS-90 Transition IOP ARM Data Discovery Browse Data Comments? We would love to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : RS-90...

  1. Subsidy for Energy Employee Transit (SEET)

    Broader source: Energy.gov [DOE]

    The Subsidy for Energy Employees' Transit (SEET) program is designed to promote the use of public transportation to conserve energy resources and ease traffic congestion. DOE employees may enroll...

  2. Transitioning Los Alamos technology into the marketplace

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

    Transitioning Los Alamos technology into the marketplace Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:May 2016 all issues All Issues » submit Transitioning Los Alamos technology into the marketplace A personal message from Duncan McBranch, Chief Technology Officer, Los Alamos National Laboratory October 1, 2014 Duncan McBranch, Chief Technology Officer, Los Alamos National Laboratory Duncan McBranch, Chief Technology Officer, Los

  3. Hydrogen Transition (HyTRANS) Model

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

    Transition (HyTRANS) Model (Oak Ridge National Laboratory) Objectives Dynamically simulate the transition to hydrogen powered light-duty vehicles in the U.S. to 2050, representing the simultaneous interaction of (1) hydrogen production and delivery, (2) hydrogen fuel cell vehicle production, and (3) consumers' choices among alternative vehicle technologies. Determine a market equilibrium solution by multi-period optimization of an objective function that reflects private costs and benefits. Key

  4. Technology Transitions Facilities Database | Department of Energy

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

    Technology Transitions Facilities Database Technology Transitions Facilities Database Type* Laboratory Name Facilities DataBase The DOE National Laboratories maintain cutting-edge experimental and computational capabilities that can provide unique opportunities for partners from the commercial sector to develop and test new technologies. The data base below lists DOE facilities and can be searched by the Laboratory at which the facility is located and by the type of R&D facility (TYPE) it

  5. 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.

  6. Late-time cosmological phase transitions

    SciTech Connect (OSTI)

    Schramm, D.N. Fermi National Accelerator Lab., Batavia, IL )

    1990-11-01

    It is shown that the potential galaxy formation and large-scale structure problems of objects existing at high redshifts (Z {approx gt} 5), structures existing on scales of 100M pc as well as velocity flows on such scales, and minimal microwave anisotropies ({Delta}T/T) {approx lt} 10{sup {minus}5} can be solved if the seeds needed to generate structure form in a vacuum phase transition after decoupling. It is argued that the basic physics of such a phase transition is no more exotic than that utilized in the more traditional GUT scale phase transitions, and that, just as in the GUT case, significant random gaussian fluctuations and/or topological defects can form. Scale lengths of {approximately}100M pc for large-scale structure as well as {approximately}1 M pc for galaxy formation occur naturally. Possible support for new physics that might be associated with such a late-time transition comes from the preliminary results of the SAGE solar neutrino experiment, implying neutrino flavor mixing with values similar to those required for a late-time transition. It is also noted that a see-saw model for the neutrino masses might also imply a tau neutrino mass that is an ideal hot dark matter candidate. However, in general either hot or cold dark matter can be consistent with a late-time transition. 47 refs., 2 figs.

  7. Electronic Transitions in f-electron Metals at High Pressures...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Electronic Transitions in f-electron Metals at High Pressures: Citation Details In-Document Search Title: Electronic Transitions in f-electron Metals at High ...

  8. Hiring Our Heroes Transition and Benefits Career Fair- Baltimore...

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

    Hiring Our Heroes Transition and Benefits Career Fair- Baltimore, MD part of the 97th Annual American Legion National Convention Hiring Our Heroes Transition and Benefits Career...

  9. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation...

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

    Administration Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration This document ...

  10. Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation...

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

    Administration; Appendix Hydrogen and Fuel Cell Transit Bus Evaluations: Joint Evaluation Plan for the U.S. Department of Energy and the Federal Transit Administration; Appendix ...

  11. Progress and Challenges for PEM Transit Fleet Applications |...

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

    and Challenges for PEM Transit Fleet Applications Progress and Challenges for PEM Transit Fleet Applications Presentation at DOE and DOT Joint Fuel Cell Bus Workshop, June 7, 2010 ...

  12. Energy Independence for North America - Transition to the Hydrogen...

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

    Independence for North America - Transition to the Hydrogen Economy Energy Independence for North America - Transition to the Hydrogen Economy 2003 DEER Conference Presentation: ...

  13. Fuel Cell Transit Bus Coordination and Evaluation Plan California...

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

    More Documents & Publications Santa Clara Valley Transportation Authority and San Mateo County Transit District -- Fuel Cell Transit Buses: Evaluation Results Santa Clara Valley ...

  14. Phase transitions in ferroic and multiferroic materials (Conference...

    Office of Scientific and Technical Information (OSTI)

    Phase transitions in ferroic and multiferroic materials Citation Details In-Document Search Title: Phase transitions in ferroic and multiferroic materials You are accessing a...

  15. ?-tin?Imma?sh Phase Transitions of Germanium (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    DOE PAGES Search Results Publisher's Accepted Manuscript: -tinImmash Phase Transitions of Germanium Prev Next Title: -tinImmash Phase Transitions of Germanium...

  16. Phase transitions in ferroic and multiferroic materials (Conference...

    Office of Scientific and Technical Information (OSTI)

    Phase transitions in ferroic and multiferroic materials Citation Details In-Document Search Title: Phase transitions in ferroic and multiferroic materials Authors: Saxena, Avadh B...

  17. LM Records and Information Management Transition Guidance (January...

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

    2015) More Documents & Publications Information and Records Management Transition Guidance LM Environmental Policy (PO 436.1a) Site Transition Process Upon Cleanup Completion

  18. Permeation of Multiple Isotopes in the Transition Between Surface...

    Office of Environmental Management (EM)

    Permeation of Multiple Isotopes in the Transition Between Surface- and Diffusion-Limited Regimes Permeation of Multiple Isotopes in the Transition Between Surface- and...

  19. POLICY GUIDANCE MEMORANDUM #19 Guidance on Transition to Eliminate...

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

    9 Guidance on Transition to Eliminate FCIP (Expired) POLICY GUIDANCE MEMORANDUM 19 Guidance on Transition to Eliminate FCIP (Expired) THIS GUIDANCE HAS EXPIRED Guidance on the...

  20. Hydrogen Fuel Cell Bus Evaluation for California Transit Agencies...

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

    Transportation Projects Hydrogen Fuel Cell Bus Evaluation for California Transit Agencies Hydrogen Fuel Cell Bus Evaluation for California Transit Agencies In February 2000, the ...

  1. How wide is the transition to deconfinement? (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    How wide is the transition to deconfinement? Citation Details In-Document Search Title: How wide is the transition to deconfinement? Authors: Dumitru, Adrian ; Guo, Yun ; Hidaka, ...

  2. Driven Skyrmions and Dynamical Transitions in Chiral Magnets...

    Office of Scientific and Technical Information (OSTI)

    Driven Skyrmions and Dynamical Transitions in Chiral Magnets Citation Details In-Document Search Title: Driven Skyrmions and Dynamical Transitions in Chiral Magnets Authors: Lin, ...

  3. Program Sustainability Peer Exchange Call: Transitioning to a...

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

    Program Sustainability Peer Exchange Call: Transitioning to a Utility Funded Program Environment: What Do I Need to Know? Program Sustainability Peer Exchange Call: Transitioning to ...

  4. Transitioning to a Utility Funded Program Environment: What Do...

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

    Program Sustainability Peer Exchange Call: Transitioning to a Utility Funded Program ... More Documents & Publications Program Sustainability Peer Exchange Call: Transitioning to ...

  5. Proximity-induced magnetism in transition-metal substituted graphene...

    Office of Scientific and Technical Information (OSTI)

    Proximity-induced magnetism in transition-metal substituted graphene Title: Proximity-induced magnetism in transition-metal substituted graphene We investigate the interactions ...

  6. Unbalanced edge modes and topological phase transition in gated...

    Office of Scientific and Technical Information (OSTI)

    Unbalanced edge modes and topological phase transition in gated trilayer graphene Title: Unbalanced edge modes and topological phase transition in gated trilayer graphene Authors: ...

  7. SPIDERS Phase 2 Fort Carson Technology Transition Consolidated...

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

    SPIDERS Phase 2 Fort Carson Technology Transition Consolidated Report SPIDERS Phase 2 Fort Carson Technology Transition Consolidated Report Final program public report for phase 2 ...

  8. Hydrogen Policy and Analyzing the Transition | Department of...

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

    Policy and Analyzing the Transition Hydrogen Policy and Analyzing the Transition Presentation at the Renewable Hydrogen Workshop held Nov 16, 2009, in Palm Springs, CA PDF icon ...

  9. United Kingdom Low Carbon Transition Plan | Open Energy Information

    Open Energy Info (EERE)

    Low Carbon Transition Plan Jump to: navigation, search Tool Summary LAUNCH TOOL Name: United Kingdom Low Carbon Transition Plan AgencyCompany Organization: United Kingdom...

  10. EBRD-The Low Carbon Transition | Open Energy Information

    Open Energy Info (EERE)

    The Low Carbon Transition Jump to: navigation, search Tool Summary LAUNCH TOOL Name: EBRD-The Low Carbon Transition AgencyCompany Organization: European Bank for Reconstruction...

  11. Walker-Lane Transition Zone Geothermal Region | Open Energy Informatio...

    Open Energy Info (EERE)

    At Walker-Lane Transitional Zone Region (Coolbaugh, Et Al., 2005 - 2) Direct-Current Resistivity Survey At Walker-Lane Transitional Zone Region (Pritchett,...

  12. Graphene physics and insulator-metal transition in compressed...

    Office of Scientific and Technical Information (OSTI)

    Graphene physics and insulator-metal transition in compressed hydrogen Title: Graphene physics and insulator-metal transition in compressed hydrogen Authors: Naumov, Ivan I. ; ...

  13. Site Transition Framework for Long-Term Surveillance and Maintenance...

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

    Framework for Long-Term Surveillance and Maintenance Site Transition Framework for Long-Term Surveillance and Maintenance Site Transition Framework for Long-Term Surveillance and ...

  14. Transition of Long-Term Response Action Management Requirements...

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

    Transition of Long-Term Response Action Management Requirements Transition of Long-Term Response Action Management Requirements The purpose of this memorandum is to provide you ...

  15. Improved wire chamber

    DOE Patents [OSTI]

    Atac, M.

    1987-05-12

    An improved gas mixture for use with proportional counter devices, such as Geiger-Mueller tubes and drift chambers. The improved gas mixture provides a stable drift velocity while eliminating wire aging caused by prior art gas mixtures. The new gas mixture is comprised of equal parts argon and ethane gas and having approximately 0.25% isopropyl alcohol vapor. 2 figs.

  16. Improved solid aerosol generator

    DOE Patents [OSTI]

    Prescott, D.S.; Schober, R.K.; Beller, J.

    1988-07-19

    An improved solid aerosol generator used to produce a gas borne stream of dry, solid particles of predetermined size and concentration. The improved solid aerosol generator nebulizes a feed solution of known concentration with a flow of preheated gas and dries the resultant wet heated aerosol in a grounded, conical heating chamber, achieving high recovery and flow rates. 2 figs.

  17. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third...

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

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed...

  18. Fuel Cell Transit Buses: ThunderPower Bus Evaluation at SunLine Transit Agency

    Broader source: Energy.gov [DOE]

    Report details the six-month evaluation of the ThunderPower hydrogen fuel cell bus demonstrated at SunLine Transit Agency.

  19. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five new compressed natural gas (CNG) buses.

  20. SunLine Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update

    Broader source: Energy.gov [DOE]

    This report provides an update on the evaluation results for hydrogen and CNG-fueled buses opertating at SunLine Transit Agency in California.

  1. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location.

  2. Sunline Transit Agency Hydrogen-Powered Transit Buses: Evaluation Results Update

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2007-10-01

    This report provides an update on the evaluation results for hydrogen and CNG-fueled buses opertating at SunLine Transit Agency in California.

  3. An Improved Design for a Super-B Interaction Region

    SciTech Connect (OSTI)

    Sullivan, M.K.; Seeman, J.; Wienands, U.; Bettoni, S.; Biagini, M.E.; Raimondi, P.; Paoloni, E.; /INFN, Pisa

    2008-07-25

    We present an improved design for a Super-B interaction region. The new design attempts to minimize the bending of the two colliding beams which results from shared magnetic elements near the Interaction Point (IP). The total crossing angle at the IP is increased from 34 mrad to 50 mrad and the distance from the IP to the first quadrupole is increased. Although the two beams still travel through this shared magnet, these changes allow for a new magnetic field design with a septum which gives the magnet two magnetic centers. This greatly reduces the beam bending from this shared quadrupole and thereby reduces the radiative bhabha background for the detector as well as any beam emittance growth from the bending. We describe the new design for the interaction region.

  4. Energy transitions in the early 21st Century

    SciTech Connect (OSTI)

    Paul Meakin

    2013-01-01

    We are in the early stages of a long and complex transition from a global economy based on fossil energy to an economy based on low carbon renewable energy. However, fossil fuel resources are abundant and widely distributed, and they will remain the dominant source of primary energy for at least the next quarter century. In the United States, displacement of coal by natural gas for electric power generation has done more to reduce CO2 emissions than all new renewables combined, and this may occur globally for the next decade or two, even if the European Union does not take advantage of its large unconventional natural gas resources. Greater energy efficiency (not including the efficiencies associated with displacement of coal by gas) will also be more important than new renewables. Cost/benefit ratios are important for sustainability of the transition, and some energy efficiency technologies and displacement of coal by natural gas have lower cost/benefit ratios than wind power, solar power or biofuels. Money spent on the large scale deployment of wind, solar and especially biofuels would be better spent on research, development and demonstration of a broader suite of technologies that would support the energy transition, with a focus on improving the cost benefit ratios of already deployed technologies and developing alternatives. Advanced nuclear reactors, engineered geothermal systems, fossil fuel recovery coupled with CO2 sequestration and pre-combustion or post-combustion decarbonation of fossil fuels with geological CO2 sequestration are among the technologies that might be more cost effective than wind, solar or biofuels, and biofuels have serious adverse societal and environment consequences.

  5. Alternative Fuel Transit Buses: DART's (Dallas Area Rapid Transit) LNG Bus Fleet Final Results

    SciTech Connect (OSTI)

    Chandler, K.; Norton, P.; Clark, N.

    2000-11-07

    In 1998, Dallas Area Rapid Transit, a public transit agency in Dallas, Texas, began operating a large fleet of heavy-duty buses powered by liquefied natural gas. As part of a $16 million commitment to alternative fuels, DART operates 139 LNG buses serviced by two new LNG fueling stations.

  6. Improving Entrainment Rate Parameterization

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

    Nuclear Security Administration Improving Emergency Communications Functionality at Lower Cost Friday, January 22, 2016 - 12:00am NNSA Blog NNSA's Emergency Communications Network (ECN) provides the capability to exchange real-time voice, data, and video information for managing emergency situations that involve NNSA assets and interests. In 2015, emergency response support teams in NNSA's Office of Emergency Operations vastly improved on the communications support available in these

  7. Draft Policy and Planning Guidance for Community Transition Activities

    Broader source: Energy.gov [DOE]

    Planning Guidance for Contractor Work Force RestructuringOffice of Worker and Community Transition 

  8. Microwave-assisted synthesis of transition metal phosphide

    DOE Patents [OSTI]

    Viswanathan, Tito

    2014-12-30

    A method of synthesizing transition metal phosphide. In one embodiment, the method has the steps of preparing a transition metal lignosulfonate, mixing the transition metal lignosulfonate with phosphoric acid to form a mixture, and subjecting the mixture to a microwave radiation for a duration of time effective to obtain a transition metal phosphide.

  9. Entanglement across a transition to quantum chaos

    SciTech Connect (OSTI)

    Mejia-Monasterio, Carlos [Center for Nonlinear and Complex Systems, Universita degli Studi dell'Insubria, via Vallegio 11, Como 22100 (Italy); Benenti, Guliano; Casati, Giulio [Center for Nonlinear and Complex Systems, Universita degli Studi dell'Insubria, via Vallegio 11, Como 22100 (Italy); Istituto Nazionale per la Fisica della Materia, Unita di Como, via Vallegio 11, Como 22100 (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via Celoria 16, 20133 Milan (Italy); Carlo, Gabriel G. [Center for Nonlinear and Complex Systems, Universita degli Studi dell'Insubria, via Vallegio 11, Como 22100 (Italy); Istituto Nazionale per la Fisica della Materia, Unita di Como, via Vallegio 11, Como 22100 (Italy)

    2005-06-15

    We study the relation between entanglement and quantum chaos in one- and two-dimensional spin-1/2 lattice models, which exhibit mixing of the noninteracting eigenfunctions and transition from integrability to quantum chaos. Contrary to what occurs in a quantum phase transition, the onset of quantum chaos is not a property of the ground state but takes place for any typical many-spin quantum state. We study bipartite and pairwise entanglement measures--namely, the reduced von Neumann entropy and the concurrence--and discuss quantum entanglement sharing. Our results suggest that the behavior of the entanglement is related to the mixing of the eigenfunctions rather than to the transition to chaos.

  10. Method of boronizing transition metal surfaces

    DOE Patents [OSTI]

    Koyama, Koichiro (Hyogo, JP); Shimotake, Hiroshi (Hinsdale, IL)

    1983-01-01

    A method is presented for preparing a boride layer on a transition metal substrate for use in corrosive environments or as a harden surface in machine applications. This method is particularly useful in treating current collectors for use within a high temperature and corrosive electrochemical cell environment. A melt of a alkali metal boride tetrafluoride salt including such as KF to lower its melting point is prepared including a dissolved boron containing material, for instance NiB, MnB.sub.2, or CrB.sub.2. A transition metal to be coated is immersed in the melt at a temperature of no more than 700.degree. C. and a surface boride layer of that transition metal is formed within a period of about 24 hours on the substrate surface.

  11. Method of boronizing transition metal surfaces

    DOE Patents [OSTI]

    Koyama, Koichiro; Shimotake, Hiroshi.

    1983-08-16

    A method is presented for preparing a boride layer on a transition metal substrate for use in corrosive environments or as a harden surface in machine applications. This method is particularly useful in treating current collectors for use within a high temperature and corrosive electrochemical cell environment. A melt of a alkali metal boride tetrafluoride salt including such as KF to lower its melting point is prepared including a dissolved boron containing material, for instance NiB, MnB[sub 2], or CrB[sub 2]. A transition metal to be coated is immersed in the melt at a temperature of no more than 700 C and a surface boride layer of that transition metal is formed within a period of about 24 hours on the substrate surface. 4 figs.

  12. Electric quadrupole transition probabilities for atomic lithium

    SciTech Connect (OSTI)

    elik, Gltekin; Gke, Yasin; Y?ld?z, Murat

    2014-05-15

    Electric quadrupole transition probabilities for atomic lithium have been calculated using the weakest bound electron potential model theory (WBEPMT). We have employed numerical non-relativistic HartreeFock wavefunctions for expectation values of radii and the necessary energy values have been taken from the compilation at NIST. The results obtained with the present method agree very well with the Coulomb approximation results given by Caves (1975). Moreover, electric quadrupole transition probability values not existing in the literature for some highly excited levels have been obtained using the WBEPMT.

  13. Electronic structure, magnetic properties, and magnetostructural transition

    Office of Scientific and Technical Information (OSTI)

    in Tb5Si2.2Ge1.8 from first principles (Journal Article) | DOE PAGES Publisher's Accepted Manuscript: Electronic structure, magnetic properties, and magnetostructural transition in Tb5Si2.2Ge1.8 from first principles Title: Electronic structure, magnetic properties, and magnetostructural transition in Tb5Si2.2Ge1.8 from first principles Authors: Paudyal, Durga ; Mudryk, Y. ; Pecharsky, V. K. ; Gschneidner, K. A. Publication Date: 2011-07-27 OSTI Identifier: 1100399 Type: Publisher's Accepted

  14. DOE Community Transition Contacts | Department of Energy

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

    About Us » Contact Us » DOE Community Transition Contacts DOE Community Transition Contacts Headquarters David Geiser, Director Office of Legacy Management, LM-1 U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 (202) 586-8324 (202) 586-8403 (FAX) david.geiser@hq.doe.gov Field HANFORD Colleen French U.S. Department of Energy Richland Operations Office P.O. Box 550 A7-75 Richland, WA 99352 (509) 373-5985 (509) 373-1563 (FAX) colleen_c_french@rl.gov IDAHO NATIONAL

  15. Electronic structure, magnetic properties, and magnetostructural transition

    Office of Scientific and Technical Information (OSTI)

    in Tb5Si2.2Ge1.8 from first principles (Journal Article) | SciTech Connect Electronic structure, magnetic properties, and magnetostructural transition in Tb5Si2.2Ge1.8 from first principles Citation Details In-Document Search Title: Electronic structure, magnetic properties, and magnetostructural transition in Tb5Si2.2Ge1.8 from first principles Authors: Paudyal, Durga ; Mudryk, Y. ; Pecharsky, V. K. ; Gschneidner, K. A. Publication Date: 2011-07-27 OSTI Identifier: 1100399 Type: Publisher's

  16. A Controlled Phase Transition | Jefferson Lab

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

    A Controlled Phase Transition A Controlled Phase Transition August 20, 2013 Since May 18, 2012, CEBAF has not accelerated an electron. In fact, for a significant fraction of that time the accelerator, as such, did not exist. Magnets were removed from the tunnel to be refurbished and upgraded to accommodate higher 12 GeV beam energies. This was done by adding a fourth leg of steel return yoke to existing C-frame magnets. Several of the dipole arcs were completed during the six-month shutdown in

  17. Hydrogen Infrastructure Transition Analysis: Milestone Report

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

    Hydrogen Infrastructure Transition Analysis M. Melendez and A. Milbrandt Milestone Report NREL/TP-540-38351 January 2006 Hydrogen Infrastructure Transition Analysis M. Melendez and A. Milbrandt Prepared under Task No. HY55.2200 Milestone Report NREL/TP-540-38351 January 2006 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest

  18. Sharp transition between two regimes of operation of dc discharge with two anodes and thermionic emission from cathode

    SciTech Connect (OSTI)

    Mustafaev, A. S.; Grabovskiy, A.; Demidov, V. I.; St. Petersburg State University, St. Petersburg 199034; University ITMO, Kronverkskiy pr. 49, St. Petersburg 197101 ; Kaganovich, I. D.; Koepke, M. E.

    2014-05-15

    In a dc discharge plasma with two anodes and thermionic emission from cathode, the two anodes are used for plasma control. The main anode is placed between the cathode and the other auxiliary anode has a circular opening for passing electron current from the cathode to the second anode. It is experimentally demonstrated that a plasma may exhibit a sudden transition between two quasi-stable conditions as one increases the cathode-electron current collected by the auxiliary anode through an aperture, i.e., hole, in the main anode. In one regime, a bright glowing “ball-shaped double layer” appears on the plasma side having a potential drop of 10–15 eV and concomitant ionization in the neighboring region attached to the opening. The second regime is characterized by a uniform potential profile in plasma and an absence of the ball-shaped double layer. The transition between these regimes is accompanied by a significant change in plasma properties, such as the electron energy distribution function (EEDF). Controlling the EEDF is a valuable capability in technological applications. Increasing the gas pressure leads to the elimination of the first regime for sufficiently high gas pressure, the threshold being a few Torr. The disappearance of a regime transition can be explained by invoking an EEDF transition, from being nonlocal at low pressure to becoming local at high pressure. Local EEDF is determined by local values of electric field. Nonlocal EEDF is determined by electric field values elsewhere, and the electron can travel without energy loss over a path much longer than the discharge dimension.

  19. Sub-Poissonian statistics in order-to-chaos transition

    SciTech Connect (OSTI)

    Kryuchkyan, Gagik Yu. [Yerevan State University, Manookyan 1, Yerevan 375049, (Armenia); Institute for Physical Research, National Academy of Sciences, Ashtarak-2 378410, (Armenia); Manvelyan, Suren B. [Institute for Physical Research, National Academy of Sciences, Ashtarak-2 378410, (Armenia)

    2003-07-01

    We study the phenomena at the overlap of quantum chaos and nonclassical statistics for the time-dependent model of nonlinear oscillator. It is shown in the framework of Mandel Q parameter and Wigner function that the statistics of oscillatory excitation numbers is drastically changed in the order-to-chaos transition. The essential improvement of sub-Poissonian statistics in comparison with an analogous one for the standard model of driven anharmonic oscillator is observed for the regular operational regime. It is shown that in the chaotic regime, the system exhibits the range of sub-Poissonian and super-Poissonian statistics which alternate one to other depending on time intervals. Unusual dependence of the variance of oscillatory number on the external noise level for the chaotic dynamics is observed. The scaling invariance of the quantum statistics is demonstrated and its relation to dissipation and decoherence is studied.

  20. LM Records and Information Management Transition Guidance (January 2015) |

    Energy Savers [EERE]

    Department of Energy Records and Information Management Transition Guidance (January 2015) LM Records and Information Management Transition Guidance (January 2015) This guidance document establishes a framework for developing a Records and Information Management Transition Plan as part of the overall transition effort for a legacy site. PDF icon LM Records and Information Management Transition Guidance (January 2015) More Documents & Publications Information and Records Management

  1. Charge Fluctuations and the Valence Transition in Yb under Pressure

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Charge Fluctuations and the Valence Transition in Yb under Pressure Citation Details In-Document Search Title: Charge Fluctuations and the Valence Transition in Yb under Pressure We present a dynamical mean field theory study of the valence transition (f{sup 14} {yields} f{sup 13}) in elemental, metallic Yb under pressure. Our calculations reproduce the observed valence transition as reflected in the volume dependence of the 4f occupation. The transition

  2. Alternative Fuels Data Center: Delaware Transit Corporation Adds Propane

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

    Buses to Its Fleet Delaware Transit Corporation Adds Propane Buses to Its Fleet to someone by E-mail Share Alternative Fuels Data Center: Delaware Transit Corporation Adds Propane Buses to Its Fleet on Facebook Tweet about Alternative Fuels Data Center: Delaware Transit Corporation Adds Propane Buses to Its Fleet on Twitter Bookmark Alternative Fuels Data Center: Delaware Transit Corporation Adds Propane Buses to Its Fleet on Google Bookmark Alternative Fuels Data Center: Delaware Transit

  3. Processing data, for improved, accuracy, from device for measuring speed of sound in a gas

    DOE Patents [OSTI]

    Owen, Thomas E.

    2006-09-19

    A method, used in connection with a pulse-echo type sensor for determining the speed of sound in a gas, for improving the accuracy of speed of sound measurements. The sensor operates on the principle that speed of sound can be derived from the difference between the two-way travel time of signals reflected from two different target faces of the sensor. This time difference is derived by computing the cross correlation between the two reflections. The cross correlation function may be fitted to a parabola whose vertex represents the optimum time coordinate of the coherence peak, thereby providing an accurate measure of the two-way time diffference.

  4. Mesh Quality Improvement Toolkit

    Energy Science and Technology Software Center (OSTI)

    2002-11-15

    MESQUITE is a linkable software library to be used by simulation and mesh generation tools to improve the quality of meshes. Mesh quality is improved by node movement and/or local topological modifications. Various aspects of mesh quality such as smoothness, element shape, size, and orientation are controlled by choosing the appropriate mesh qualtiy metric, and objective function tempate, and a numerical optimization solver to optimize the quality of meshes, MESQUITE uses the TSTT mesh interfacemore » specification to provide an interoperable toolkit that can be used by applications which adopt the standard. A flexible code design makes it easy for meshing researchers to add additional mesh quality metrics, templates, and solvers to develop new quality improvement algorithms by making use of the MESQUITE infrastructure.« less

  5. Savannah River Site prioritization of transition activities

    SciTech Connect (OSTI)

    Finley, R.H.

    1993-11-01

    Effective management of SRS conversion from primarily a production facility to other missions (or Decontamination and Decommissioning (D&D)) requires a systematic and consistent method of prioritizing the transition activities. This report discusses the design of a prioritizing method developed to achieve systematic and consistent methods of prioritizing these activities.

  6. DOE Hydrogen Transition Analysis Workshop: Final Agenda

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

    DOE-HFCIT 8:40 am Agenda and Purpose - Sig Gronich, DOE-HFCIT 9:10 am HyTrans Model - ... Break 3:00 pm Early Transition Scenarios - Sig Gronich, DOE-HFCIT 3:15 pm Open Discussion ...

  7. Improving Contractor Past Performance

    Broader source: Energy.gov [DOE]

    The Office of Federal Procurement Policy, (OFPP) performed an assessment of how well some agencies, including the Department of Energy, are managing these efforts. The attached OFPP memorandum of January 21, 2011, entitled "Improving the Use of Contractor Performance Information Assessments: Summary of the Office of Federal Procurement Policy's review, and Strategies for Improvement" provides the details of this assessment which includes the Department of Energy. Also, the memo provides some very good guidance on preparing contractor performance evaluation reports. The Acquisition Guide Chapter 42.15 Contractor Performance Information incorporates the guidance that is not otherwise part of the Chapter. Revisions are made to Section II – Parts C and I.

  8. Improving Meningococcal Vaccines

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

    Energy Improving Home Efficiency and Comfort Right After a Move Improving Home Efficiency and Comfort Right After a Move December 3, 2014 - 10:27am Addthis Hanging drapes or blinds soon after moving is a small step that can have an immediate effect on the comfort of your home. | Photo courtesy of iStockphoto.com/powershot. Hanging drapes or blinds soon after moving is a small step that can have an immediate effect on the comfort of your home. | Photo courtesy of iStockphoto.com/powershot.

  9. Hydropower Process Improvements

    Energy Savers [EERE]

    Hydropower Appropriations Hydropower Appropriations List of projects selected focusing on updating technologies and methods to improve the performance of conventional hydropower plants. PDF icon Hydropower Appropriations More Documents & Publications Site Characterization Awards Water Power Program: 2011 Peer Review Report Marine and Hydrokinetic Energy Projects

    Market Acceleration and Deployment Hydropower Market Acceleration and Deployment Hydropower Market Acceleration and Deployment

  10. MCNP Progress & Performance Improvements

    SciTech Connect (OSTI)

    Brown, Forrest B.; Bull, Jeffrey S.; Rising, Michael Evan

    2015-04-14

    Twenty-eight slides give information about the work of the US DOE/NNSA Nuclear Criticality Safety Program on MCNP6 under the following headings: MCNP6.1.1 Release, with ENDF/B-VII.1; Verification/Validation; User Support & Training; Performance Improvements; and Work in Progress. Whisper methodology will be incorporated into the code, and run speed should be increased.

  11. Improved vortex reactor system

    DOE Patents [OSTI]

    Diebold, James P.; Scahill, John W.

    1995-01-01

    An improved vortex reactor system for affecting fast pyrolysis of biomass and Refuse Derived Fuel (RDF) feed materials comprising: a vortex reactor having its axis vertically disposed in relation to a jet of a horizontally disposed steam ejector that impels feed materials from a feeder and solids from a recycle loop along with a motive gas into a top part of said reactor.

  12. Fuel Cell Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation Team

    Broader source: Energy.gov [DOE]

    The purpose of this document is to describe the coordination and evaluation of the demonstration of seven full-size (40-foot) fuel cell transit buses. The descriptions in this document include the partners, fuel cell bus demonstration sites, objectives...

  13. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report and Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses.

  14. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third...

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

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural ...

  15. King County Metro Transit Hybrid Articulated Transit Buses: Interim Evaluation Results

    SciTech Connect (OSTI)

    Chandler, K.; Walkowicz, K.

    2006-04-01

    Interim technical report compares and evaluates new diesel and diesel hybrid-electric articulated buses operated as part of the King County Metro Transit (KC Metro) fleet in Seattle, Washington.

  16. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report (Report and Appendices)

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2008-06-01

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses.

  17. The effect of large amplitude motions on the transition frequency redshift in hydrogen bonded complexes: A physical picture

    SciTech Connect (OSTI)

    Mackeprang, Kasper; Kjaergaard, Henrik G.; Salmi, Teemu; Hnninen, Vesa; Halonen, Lauri

    2014-05-14

    We describe the vibrational transitions of the donor unit in water dimer with an approach that is based on a three-dimensional local mode model. We perform a perturbative treatment of the intermolecular vibrational modes to improve the transition wavenumber of the hydrogen bonded OH-stretching transition. The model accurately predicts the transition wavenumbers of the vibrations in water dimer compared to experimental values and provides a physical picture that explains the redshift of the hydrogen bonded OH-oscillator. We find that it is unnecessary to include all six intermolecular modes in the vibrational model and that their effect can, to a good approximation, be computed using a potential energy surface calculated at a lower level electronic structure method than that used for the unperturbed model.

  18. Convolution seal for transition duct in turbine system

    SciTech Connect (OSTI)

    Flanagan, James Scott; LeBegue, Jeffrey Scott; McMahan, Kevin Weston; Dillard, Daniel Jackson; Pentecost, Ronnie Ray

    2015-05-26

    A turbine system is disclosed. In one embodiment, the turbine system includes a transition duct. The transition duct includes an inlet, an outlet, and a passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The transition duct further includes an interface feature for interfacing with an adjacent transition duct. The turbine system further includes a convolution seal contacting the interface feature to provide a seal between the interface feature and the adjacent transition duct.

  19. An Alternate Mechanism for E0 Transitions in Transitional and Deformed Nuclei

    SciTech Connect (OSTI)

    Casten, R.F.; Brentano, P. von; Werner, V.; Scholl, C.; Jolie, J.; McCutchan, E.A.; Kruecken, R.

    2004-09-13

    It is shown that the simple IBA-1, which acts in a single space, robustly predicts a sharp rise in {rho}{sup 2}(E0; 0{sub 2}{sup +} {yields} 0{sub 1}{sup +}) values in spherical-deformed transition regions, in agreement with the data. These predictions are effectively parameter-free and provide an alternative to the usual coexistence model for these transitions.

  20. Solid-to-hybrid transitioning armature railgun with non-conforming-to-prejudice bore profile

    DOE Patents [OSTI]

    Solberg, Jerome Michael

    2012-12-04

    An improved railgun, railgun barrel, railgun projectile, and railgun system for accelerating a solid-to-hybrid transitioning armature projectile using a barrel having a bore that does not conform to a cross-sectional profile of the projectile, to contact and guide the projectile only by the rails in a low pressure bore volume so as to minimize damage, failure, and/or underperformance caused by plasma armatures, insulator ablation, and/or restrikes.

  1. Emissions Effects of Using B20 in the Current Transit Bus Fleet |

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

    Department of Energy Transit buses using diesel and biodiesel blends were tested for fuel consumption and emissions on the UDDS, OCTA, and Man duty cycles. PDF icon p-19_sindler.pdf More Documents & Publications Fuel Economy Improvements from a Hybrid-Electric/Diesel Powertrain in a Class 4 Parcel Delivery Vehicle Performance of Biofuels and Biofuel Blends Performance of Biofuels and Biofuel Blends

  2. Improving the Transparency of IAEA Safeguards Reporting

    SciTech Connect (OSTI)

    Toomey, Christopher; Hayman, Aaron M.; Wyse, Evan T.; Odlaug, Christopher S.

    2011-07-17

    In 2008, the Standing Advisory Group on Safeguards Implementation (SAGSI) indicated that the International Atomic Energy Agency's (IAEA) Safeguards Implementation Report (SIR) has not kept pace with the evolution of safeguards and provided the IAEA with a set of recommendations for improvement. The SIR is the primary mechanism for providing an overview of safeguards implementation in a given year and reporting on the annual safeguards findings and conclusions drawn by the Secretariat. As the IAEA transitions to State-level safeguards approaches, SIR reporting must adapt to reflect these evolutionary changes. This evolved report will better reflect the IAEA's transition to a more qualitative and information-driven approach, based upon State-as-a-whole considerations. This paper applies SAGSI's recommendations to the development of multiple models for an evolved SIR and finds that an SIR repurposed as a 'safeguards portal' could significantly enhance information delivery, clarity, and transparency. In addition, this paper finds that the 'portal concept' also appears to have value as a standardized information presentation and analysis platform for use by Country Officers, for continuity of knowledge purposes, and the IAEA Secretariat in the safeguards conclusion process. Accompanying this paper is a fully functional prototype of the 'portal' concept, built using commercial software and IAEA Annual Report data.

  3. Improved solar heating systems

    DOE Patents [OSTI]

    Schreyer, J.M.; Dorsey, G.F.

    1980-05-16

    An improved solar heating system is described in which the incident radiation of the sun is absorbed on collector panels, transferred to a storage unit and then distributed as heat for a building and the like. The improvement is obtained by utilizing a storage unit comprising separate compartments containing an array of materials having different melting points ranging from 75 to 180/sup 0/F. The materials in the storage system are melted in accordance with the amount of heat absorbed from the sun and then transferred to the storage system. An efficient low volume storage system is provided by utilizing the latent heat of fusion of the materials as they change states in storing ad releasing heat for distribution.

  4. improve combustion models

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

    improve combustion models - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs

  5. Abuse Tolerance Improvements

    Office of Scientific and Technical Information (OSTI)

    119C Exceptional service in the national interest Sandia National Laboratories ES036 Abuse Tolerance Improvements Christopher J. Orendorff, Kyle R. Fenton, Ganesan Nagasubramanian, Josh Lamb, and Travis M. Anderson Sandia National Laboratories This presentation does not contain any proprietary, confidential, or otherwise restricted information 2015 Energy Storage Annual Merit Review Washington, D. C. June 2015 Overview Sandia National Laboratories Timeline ■ Start Date: Oct. 2014 ■ End date:

  6. Improved vortex reactor system

    DOE Patents [OSTI]

    Diebold, J.P.; Scahill, J.W.

    1995-05-09

    An improved vortex reactor system is described for affecting fast pyrolysis of biomass and Refuse Derived Fuel (RDF) feed materials comprising: a vortex reactor having its axis vertically disposed in relation to a jet of a horizontally disposed steam ejector that impels feed materials from a feeder and solids from a recycle loop along with a motive gas into a top part of said reactor. 12 figs.

  7. Raman Lidar Receives Improvements

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

    2 Raman Lidar Receives Improvements The Raman lidar at the SGP central facility is receiving upgrades to its environmental controls. This ground-based remote sensing instrument uses a laser to measure vertical profiles of water vapor mixing ratio, as well as many cloud and aerosol quantities. The lidar is housed in a shipping container (Figure 1) that has its own heating and air conditioning unit to maintain the stable temperature and humidity levels required by the computer and laser equipment.

  8. Improving haul truck productivity

    SciTech Connect (OSTI)

    Fiscor, S.

    2007-06-15

    The paper reviews developments in payload management and cycle times. These were discussed at a roundtable held at the Haulage and Loading 2007 conference held in May in Phoenix, AZ, USA. Several original equipment manufacturers (OEMs) explaind what their companies were doing to improve cycle times for trucks, shovels and excavators used in surface coal mining. Quotations are given from Dion Domaschenz of Liebherr and Steve Plott of Cat Global Mining. 4 figs.

  9. Cascade morphology transition in bcc metals

    SciTech Connect (OSTI)

    Setyawan, Wahyu; Selby, A.; Juslin, Niklas; Stoller, Roger E.; Wirth, Brian D.; Kurtz, Richard J.

    2015-06-10

    Energetic atom collisions in solids induce shockwaves with complex morphologies. In this paper, we establish the existence of a morphological transition in such cascades. The order parameter of the morphology is defined as the exponent, $b$, in the defect production curve as a function of cascade energy ($N_F$$ \\sim$$E_{MD}^b$). Response of different bcc metals can be compared in a consistent energy domain when the energy is normalized by the transition energy, $\\mu$, between the high- and the low-energy regime. Using Cr, Fe, Mo and W data, an empirical formula of $\\mu$ as a function of displacement threshold energy, $E_d$, is presented for bcc metals.

  10. Methanol-fueled transit bus demonstration

    SciTech Connect (OSTI)

    Jackson, M.D.; Fong, D.W.; Powars, C.A.; Smith, K.D.

    1983-01-01

    This paper summarizes the results of a California study to investigate the technical, environmental, and economic viability of using coal-derived fuels for transportation. Since nearly all of California's major urban areas have pollution problems, emphasis is placed on those options which are capable of achieving low exhaust emissions. A broad range of fuels are considered, including solids, gases, and liquids. Methanol, used in heavy-duty engines designed for this fuel, meets California's environmental, economic, and technical requirements for clean coal fuels. The combination has lower exhaust emissions than conventional Diesels -- smoke is eliminated and NO/SUB x/ and CO emissions are reduced. Further, thermal efficiencies comparable or exceeding conventional Diesels are possible. A demonstration of this new technology is now underway. Transit buses will be purchased with the objective of demonstrating alternative methanol engine designs. Economic viability in transit operations will be established.

  11. Controlled transitions between cupolets of chaotic systems

    SciTech Connect (OSTI)

    Morena, Matthew A. Short, Kevin M.; Cooke, Erica E.

    2014-03-15

    We present an efficient control scheme that stabilizes the unstable periodic orbits of a chaotic system. The resulting orbits are known as cupolets and collectively provide an important skeleton for the dynamical system. Cupolets exhibit the interesting property that a given sequence of controls will uniquely identify a cupolet, regardless of the system's initial state. This makes it possible to transition between cupolets, and thus unstable periodic orbits, simply by switching control sequences. We demonstrate that although these transitions require minimal controls, they may also involve significant chaotic transients unless carefully controlled. As a result, we present an effective technique that relies on Dijkstra's shortest path algorithm from algebraic graph theory to minimize the transients and also to induce certainty into the control of nonlinear systems, effectively providing an efficient algorithm for the steering and targeting of chaotic systems.

  12. Office of Technology Transitions | Department of Energy

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

    Office of Technology Transitions Fusing the Audacity of Imagination with Pathways to Excellence Fusing the Audacity of Imagination with Pathways to Excellence OTT Director Jetta Wong recently joined Pacific Northwest National Laboratory (PNNL) Director Steven Ashby and other dignitaries in celebrating PNNL's inventors and innovators at the lab's Pathway to Excellence celebration. Read more Universities Provide Pipeline of Talent, Ideas, and Innovation Universities Provide Pipeline of Talent,

  13. DOE Transition Team President-Elect's 2008

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

    OF E--NERGY COMPILATION OF OFFICE OF GENERAL COUNSEL MATERIALS PROVIDED TO THE PRESIDENT-ELECT'S DOE TRANSITION TEAM 2008-2009 Cynthia Quarterman from Janet Barsy - Office of General [GAO Report; Other I Congressional Matters; FY 2008 DOE AFR S | December 1 " ... 2008, Memor-andum, to - Cynthia Quarterman from Janet Barsy - Requested Information [List of Pending 2 Litigation Cases; Federal Facility Agreements ...... ] December 5, 2008, Memorandum to Cynthia Quarterman from Janet Barsy -

  14. Advanced Reactors Transition Program Resource Loaded Schedule

    SciTech Connect (OSTI)

    BOWEN, W.W.

    1999-11-08

    The Advanced Reactors Transition (ART) Resource Loaded Schedule (RLS) provides a cost and schedule baseline for managing the project elements within the ART Program. The Fast Flux Test Facility (FFTF) activities are delineated through the end of FY 2000, assuming continued standby. The Nuclear Energy (NE) Legacies and Plutonium Recycle Test Reactor (PRTR) activities are delineated through the end of the deactivation process. This document reflects the 1 Oct 1999 baseline.

  15. Phase transitions and elementary-particle physics

    SciTech Connect (OSTI)

    Creutz, M.

    1981-01-01

    The reason physicists have recently taken an intense interest in the statistical mechanics of certain lattice models is reviewed. Phase transitions in these systems are of direct relevance to whether the gauge theory of interacting quarks and gluons can prevent the quark as appearing as a free isolated object. Monte Carlo simulation techniques have given the strongest evidence for the confinement phenomenon and are beginning to make numerical predictions in strong interaction physics.

  16. Advanced Reactors Transition Program Resource Loaded Schedule

    SciTech Connect (OSTI)

    GANTT, D.A.

    2000-01-12

    The Advanced Reactors Transition (ART) Resource Loaded Schedule (RLS) provides a cost and schedule baseline for managing the project elements within the ART Program. The Fast Flux Test Facility (FETF) activities are delineated through the end of FY 2000, assuming continued standby. The Nuclear Energy (NE) Legacies and Plutonium Recycle Test Reactor (PRTR) activities are delineated through the end of the deactivation process. This revision reflects the 19 Oct 1999 baseline.

  17. Foothill Transit Battery Electric Bus Demonstration Results

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

    Foothill Transit Battery Electric Bus Demonstration Results Leslie Eudy, Robert Prohaska, Kenneth Kelly, and Matthew Post National Renewable Energy Laboratory Technical Report NREL/TP-5400-65274 January 2016 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 Renewable Energy Laboratory (NREL) at www.nrel.gov/publications.

  18. Measurement of the ??*?? and ??*??' transition form factors

    SciTech Connect (OSTI)

    del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; GarraTico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu.?G.; Lynch, G.; Osipenkov, I. L.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Blinov, V. E.; Botov, A. A.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu.?I.; Solodov, E. P.; Todyshev, K.?Yu.; Yushkov, A. N.; Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.; Eisner, A. M.; Heusch, C. A.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Winstrom, L. O.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Dubrovin, M. S.; Meadows, B. T.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Jasper, H.; Petzold, A.; Spaan, B.; Kobel, M. J.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Fioravanti, E.; Franchini, P.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Petrella, A.; Piemontese, L.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Edwards, A. J.; Adametz, A.; Marks, J.; Uwer, U.; Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.; Volk, A.; Dauncey, P. D.; Tibbetts, M.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Crawley, H. B.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Firmino da Costa, J.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Perez, A.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wang, L.; Wormser, G.; Lange, D. J.; Wright, D. M.; Bingham, I.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Paramesvaran, S.; Wren, A. C.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Anderson, J.; Cenci, R.; Jawahery, A.; Roberts, D. A.; Simi, G.; Tuggle, J. M.; Dallapiccola, C.; Salvati, E.; Cowan, R.; Dujmic, D.; Sciolla, G.; Zhao, M.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.; Biassoni, P.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.; Corwin, L. A.; Honscheid, K.; Kass, R.; Blount, N. L.; Brau, J.; Frey, R.; Igonkina, O.; Kolb, J. A.; Rahmat, R.; Sinev, N. B.; Strom, D.; Strube, J.; Torrence, E.; Castelli, G.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Prendki, J.; Sitt, S.; Biasini, M.; Manoni, E.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J. J.; LopesPegna, D.; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Baracchini, E.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; LiGioi, L.; Mazzoni, M. A.; Piredda, G.; Renga, F.; Buenger, C.; Hartmann, T.; Leddig, T.; Schrder, H.; Waldi, R.; Adye, T.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yche, Ch.; Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; FrancoSevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Li, S.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.

    2011-09-06

    We study the reactions e?e??e?e??(') in the single-tag mode and measure the ??*??(') transition form factors in the momentum-transfer range from 4 to 40 GeV. The analysis is based on 469 fb? of integrated luminosity collected at PEP-II with the BABAR detector at e?e? center-of-mass energies near 10.6 GeV.

  19. Fast radial flows in transition disk holes

    SciTech Connect (OSTI)

    Rosenfeld, Katherine A.; Andrews, Sean M.; Chiang, Eugene

    2014-02-20

    Protoplanetary 'transition' disks have large, mass-depleted central cavities, yet also deliver gas onto their host stars at rates comparable to disks without holes. The paradox of simultaneous transparency and accretion can be explained if gas flows inward at much higher radial speeds inside the cavity than outside the cavity, since surface density (and by extension optical depth) varies inversely with inflow velocity at fixed accretion rate. Radial speeds within the cavity might even have to approach free-fall values to explain the huge surface density contrasts inferred for transition disks. We identify observational diagnostics of fast radial inflow in channel maps made in optically thick spectral lines. Signatures include (1) twisted isophotes in maps made at low systemic velocities and (2) rotation of structures observed between maps made in high-velocity line wings. As a test case, we apply our new diagnostic tools to archival Atacama Large Millimeter Array data on the transition disk HD 142527 and uncover evidence for free-fall radial velocities inside its cavity. Although the observed kinematics are also consistent with a disk warp, the radial inflow scenario is preferred because it predicts low surface densities that appear consistent with recent observations of optically thin CO isotopologues in this disk. How material in the disk cavity sheds its angular momentum wholesale to fall freely onto the star is an unsolved problem; gravitational torques exerted by giant planets or brown dwarfs are briefly discussed as a candidate mechanism.

  20. A National Vision of America's Transition to a Hydrogen Economy...

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

    A National Vision of America's Transition to a Hydrogen Economy--To 2030 and Beyond A National Vision of America's Transition to a Hydrogen Economy--To 2030 and Beyond The summary ...

  1. Recommendation 218: Develop a Fact Sheet on Site Transition at...

    Office of Environmental Management (EM)

    8: Develop a Fact Sheet on Site Transition at On-going Mission Sites Recommendation 218: Develop a Fact Sheet on Site Transition at On-going Mission Sites The recommendation...

  2. The Iron Spin Transition in the Earth's Lower Mantle

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

    The Iron Spin Transition in the Earth's Lower Mantle The Iron Spin Transition in the Earth's Lower Mantle Print Wednesday, 30 April 2008 00:00 It is now known that the iron present...

  3. Tuning of the Metal-Insulator Transition via Alkali Adsorption

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

    Tuning of the Metal-Insulator Transition via Alkali Adsorption Tuning of the Metal-Insulator Transition via Alkali Adsorption Print Wednesday, 29 March 2006 00:00 Turning a...

  4. Assisting Transit Agencies with Natural Gas Bus Technologies

    SciTech Connect (OSTI)

    Not Available

    2005-04-01

    A 2-page fact sheet summarizing the U.S. Department of Energy Natural Gas Transit Users Group, which provides assistance to transit agencies implementing natural gas vehicles into their fleets.

  5. Structural transition and orbital glass physics in near-itinerant...

    Office of Scientific and Technical Information (OSTI)

    Structural transition and orbital glass physics in near-itinerant CoV2O4 Citation Details ... Title: Structural transition and orbital glass physics in near-itinerant CoV2O4 In this ...

  6. Comparative study of defect transition energy calculation methods...

    Office of Scientific and Technical Information (OSTI)

    Comparative study of defect transition energy calculation methods: The case of oxygen vacancy in In2O3 and ZnO Prev Next Title: Comparative study of defect transition energy ...

  7. TRI State Motor Transit to Resume Shipping Waste to WIPP

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

    Tri-State Motor Transit to Resume Shipping Transuranic Waste to WIPP CARLSBAD, N.M., January 19, 2001 - Tri-State Motor Transit will resume shipping waste to the Waste Isolation...

  8. Gas Shale Plays? The Global Transition

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

    and transportation capacity in the Horn River Basin is being expanded to provide improved market access for its growing shale gas production. Pipeline infrastructure is being...

  9. Transit Timing Observations from Kepler: II. Confirmation of Two Multiplanet Systems via a Non-parametric Correlation Analysis

    SciTech Connect (OSTI)

    Ford, Eric B.; Fabrycky, Daniel C.; Steffen, Jason H.; Carter, Joshua A.; Fressin, Francois; Holman, Matthew J.; Lissauer, Jack J.; Moorhead, Althea V.; Morehead, Robert C.; Ragozzine, Darin; Rowe, Jason F.; /NASA, Ames /SETI Inst., Mtn. View /San Diego State U., Astron. Dept.

    2012-01-01

    We present a new method for confirming transiting planets based on the combination of transit timing variations (TTVs) and dynamical stability. Correlated TTVs provide evidence that the pair of bodies are in the same physical system. Orbital stability provides upper limits for the masses of the transiting companions that are in the planetary regime. This paper describes a non-parametric technique for quantifying the statistical significance of TTVs based on the correlation of two TTV data sets. We apply this method to an analysis of the transit timing variations of two stars with multiple transiting planet candidates identified by Kepler. We confirm four transiting planets in two multiple planet systems based on their TTVs and the constraints imposed by dynamical stability. An additional three candidates in these same systems are not confirmed as planets, but are likely to be validated as real planets once further observations and analyses are possible. If all were confirmed, these systems would be near 4:6:9 and 2:4:6:9 period commensurabilities. Our results demonstrate that TTVs provide a powerful tool for confirming transiting planets, including low-mass planets and planets around faint stars for which Doppler follow-up is not practical with existing facilities. Continued Kepler observations will dramatically improve the constraints on the planet masses and orbits and provide sensitivity for detecting additional non-transiting planets. If Kepler observations were extended to eight years, then a similar analysis could likely confirm systems with multiple closely spaced, small transiting planets in or near the habitable zone of solar-type stars.

  10. Gravitational waves from phase transitions at the electroweak scale and

    Office of Scientific and Technical Information (OSTI)

    beyond (Journal Article) | SciTech Connect waves from phase transitions at the electroweak scale and beyond Citation Details In-Document Search Title: Gravitational waves from phase transitions at the electroweak scale and beyond If there was a first-order phase transition in the early universe, there should be an associated stochastic background of gravitational waves. In this paper, we point out that the characteristic frequency of the spectrum due to phase transitions which took place in

  11. Redox chemistry and metal-insulator transitions intertwined | Center for

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

    Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Redox chemistry and metal-insulator transitions intertwined

  12. In-Transit Natural Gas Form | Department of Energy

    Energy Savers [EERE]

    In-Transit Natural Gas Form In-Transit Natural Gas Form File Excel Version of In-Transit Natural Gas Form.xlsx PDF icon PDF Version of In-Transit Natural Gas Form More Documents & Publications Heating Ventilation and Air Conditioning Efficiency Natural Gas Imports by Pipeline into the U.S. Form Natural Gas Exports by Pipeline out of the U.S. Form

  13. DOE Hydrogen Transition Analysis Workshop | Department of Energy

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

    Transition Analysis Workshop DOE Hydrogen Transition Analysis Workshop The U.S. Department of Energy (DOE) sponsored a Hydrogen Transition Analysis Workshop in Washington, D.C., on January 26, 2006. Attendees included automobile and energy company representatives, industrial gas company representatives, analysts, national laboratories, and DOE program managers. The purpose of the workshop was to gather input and feedback on the hydrogen transition models currently being funded by DOE. Agenda,

  14. Transits of planets with small intervals in circumbinary systems

    SciTech Connect (OSTI)

    Liu, Hui-Gen; Wang, Ying; Zhang, Hui; Zhou, Ji-Lin

    2014-08-01

    Transit times around single stars can be described well by a linear ephemeris. However, transit times in circumbinary systems are influenced both by the gravitational perturbations and the orbital phase variations of the central binary star. Adopting a coplanar analog of Kepler-16 as an example, we find that circumbinary planets can transit the same star more than once during a single planetary orbit, a phenomenon we call 'tight transits.' In certain geometric architecture, the projected orbital velocity of the planet and the secondary star can approach zero and change sign, resulting in very long transits and/or 2-3 transits during a single binary orbit. Whether tight transits are possible for a particular system depends primarily on the binary mass ratio and the orbital architecture of both the binary and the planet. We derive a time-dependent criterion to judge when tight transits are possible for any circumbinary system. These results are verified with full dynamical integrations that also reveal other tight transit characteristics, i.e., the transit durations and the intervals between tight transits. For the seven currently known circumbinary systems, we estimate these critical parameters both analytically and numerically. Due to the mutual inclination between the planet and the binary, tight transits can only occur across the less massive star B in Kepler-16, -34, -35, and -47 (for both planets). The long-term average frequency of tight transits (compared to typical transits) for Kepler-16, -34, and -35 are estimated to be several percent. Using full numerical integrations, the next tight transit for each system is predicted and the soonest example appears to be Kepler-47b and -47c, which are likely to have tight transits before 2025. These unique and valuable events often deserve special observational scrutiny.

  15. On the reversibility of transitions between closed and open cellular

    Office of Scientific and Technical Information (OSTI)

    convection (Journal Article) | SciTech Connect On the reversibility of transitions between closed and open cellular convection Citation Details In-Document Search Title: On the reversibility of transitions between closed and open cellular convection The two-way transition between closed and open cellular convection is addressed in an idealized cloud-resolving modeling framework. A series of cloud-resolving simulations shows that the transition between closed and open cellular states is

  16. On the reversibility of transitions between closed and open cellular

    Office of Scientific and Technical Information (OSTI)

    convection (Journal Article) | SciTech Connect On the reversibility of transitions between closed and open cellular convection Citation Details In-Document Search Title: On the reversibility of transitions between closed and open cellular convection The two-way transition between closed and open cellular convection is addressed in an idealized cloud resolving modeling framework. A series of cloud resolving simulations shows that the transition between closed and open cellular states is

  17. Spotlight on Maine: Transition to a Sustainable Level of Incentives |

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

    Department of Energy Spotlight on Maine: Transition to a Sustainable Level of Incentives Spotlight on Maine: Transition to a Sustainable Level of Incentives PDF icon Spotlight on Maine: Transition to a Sustainable Level of Incentives More Documents & Publications Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives Better Buildings: Workforce, Spotlight on Maine: Contractor Sales Training Boosts Energy Upgrade Conversions Focus

  18. Tool and Calculator (Transit, Fuel) | Open Energy Information

    Open Energy Info (EERE)

    Transit & Infrastructure Topics: Analysis Tools Resource Type: Reports, Journal Articles, & Tools Website: www.publictransportation.orgtoolsPagesdefault.aspx This webside...

  19. Alternative Fuels Data Center: State Requirements Boost the Transition to

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

    Alternative Fuel Vehicle Fleets State Requirements Boost the Transition to Alternative Fuel Vehicle Fleets to someone by E-mail Share Alternative Fuels Data Center: State Requirements Boost the Transition to Alternative Fuel Vehicle Fleets on Facebook Tweet about Alternative Fuels Data Center: State Requirements Boost the Transition to Alternative Fuel Vehicle Fleets on Twitter Bookmark Alternative Fuels Data Center: State Requirements Boost the Transition to Alternative Fuel Vehicle Fleets

  20. (Electronic structure and reactivities of transition metal clusters)

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    The following are reported: theoretical calculations (configuration interaction, relativistic effective core potentials, polyatomics, CASSCF); proposed theoretical studies (clusters of Cu, Ag, Au, Ni, Pt, Pd, Rh, Ir, Os, Ru; transition metal cluster ions; transition metal carbide clusters; bimetallic mixed transition metal clusters); reactivity studies on transition metal clusters (reactivity with H{sub 2}, C{sub 2}H{sub 4}, hydrocarbons; NO and CO chemisorption on surfaces). Computer facilities and codes to be used, are described. 192 refs, 13 figs.

  1. Better Buildings: Financing and Incentives: Spotlight on Maine: Transition

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

    to a Sustainable Level of Incentives | Department of Energy Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives Better Buildings: Financing and Incentives: Spotlight on Maine: Transition to a Sustainable Level of Incentives PDF icon Spotlight on Maine: Transition to a Sustainable Level of Incentives More Documents &

  2. CONNECTING TRANSITIONS IN GALAXY PROPERTIES TO REFUELING

    SciTech Connect (OSTI)

    Kannappan, Sheila J.; Stark, David V.; Eckert, Kathleen D.; Moffett, Amanda J.; Norris, Mark A.; Weinberg-Wolf, Jennifer; Wei, Lisa H.; Fabricant, Daniel G.; Pisano, D. J.; Baker, Andrew J.; Vogel, Stuart N.; Laine, Seppo; Jogee, Shardha; Lepore, Natasha; Hough, Loren E.

    2013-11-01

    We relate transitions in galaxy structure and gas content to refueling, here defined to include both the external gas accretion and the internal gas processing needed to renew reservoirs for star formation. We analyze two z = 0 data sets: a high-quality ∼200 galaxy sample (the Nearby Field Galaxy Survey, data release herein) and a volume-limited ∼3000 galaxy sample with reprocessed archival data. Both reach down to baryonic masses ∼10{sup 9} M{sub ☉} and span void-to-cluster environments. Two mass-dependent transitions are evident: (1) below the 'gas-richness threshold' scale (V ∼ 125 km s{sup –1}), gas-dominated quasi-bulgeless Sd-Im galaxies become numerically dominant; while (2) above the 'bimodality' scale (V ∼ 200 km s{sup –1}), gas-starved E/S0s become the norm. Notwithstanding these transitions, galaxy mass (or V as its proxy) is a poor predictor of gas-to-stellar mass ratio M{sub gas}/M{sub *}. Instead, M{sub gas}/M{sub *} correlates well with the ratio of a galaxy's stellar mass formed in the last Gyr to its preexisting stellar mass, such that the two ratios have numerically similar values. This striking correspondence between past-averaged star formation and current gas richness implies routine refueling of star-forming galaxies on Gyr timescales. We argue that this refueling underlies the tight M{sub gas}/M{sub *} versus color correlations often used to measure 'photometric gas fractions'. Furthermore, the threshold and bimodality scale transitions reflect mass-dependent demographic shifts between three refueling regimes—accretion-dominated, processing-dominated, and quenched. In this picture, gas-dominated dwarfs are explained not by inefficient star formation but by overwhelming gas accretion, which fuels stellar mass doubling in ∼<1 Gyr. Moreover, moderately gas-rich bulged disks such as the Milky Way are transitional, becoming abundant only in the narrow range between the threshold and bimodality scales.

  3. Improved radioanalytical methods

    SciTech Connect (OSTI)

    Erickson, M.D.; Aldstadt, J.H.; Alvarado, J.S.; Crain, J.S.; Orlandini, K.A.; Smith, L.L.

    1995-12-31

    Methods for the chemical characterization of the environment are being developed under a multitask project for the Analytical Services Division (EM-263) within the US Department of Energy (DOE) Office of Environmental Management. This project focuses on improvement of radioanalytical methods with an emphasis on faster and cheaper routine methods. We have developed improved methods, for separation of environmental levels of technetium-99 and strontium-89/90, radium, and actinides from soil and water; and for separation of actinides from soil and water matrix interferences. Among the novel separation techniques being used are element- and class-specific resins and membranes. (The 3M Corporation is commercializing Empore {trademark} membranes under a cooperative research and development agreement [CRADA] initiated under this project). We have also developed methods for simultaneous detection of multiple isotopes using inductively coupled plasma-mass spectrometry (ICP-MS). The ICP-MS method requires less rigorous chemical separations than traditional radiochemical analyses because of its mass-selective mode of detection. Actinides and their progeny have been isolated and concentrated from a variety of natural water matrices by using automated batch separation incorporating selective resins prior to ICP-MS analyses. In addition, improvements in detection limits, sample volume, and time of analysis were obtained by using other sample introduction techniques, such as ultrasonic nebulization and electrothermal vaporization. Integration and automation of the separation methods with the ICP-MS methodology by using flow injection analysis is underway, with an objective of automating methods to achieve more reproducible results, reduce labor costs, cut analysis time, and minimize secondary waste generation through miniaturization of the process.

  4. Improving carbon fixation pathways

    SciTech Connect (OSTI)

    Ducat, DC; Silver, PA

    2012-08-01

    A recent resurgence in basic and applied research on photosynthesis has been driven in part by recognition that fulfilling future food and energy requirements will necessitate improvements in crop carbon-fixation efficiencies. Photosynthesis in traditional terrestrial crops is being reexamined in light of molecular strategies employed by photosynthetic microbes to enhance the activity of the Calvin cycle. Synthetic biology is well-situated to provide original approaches for compartmentalizing and enhancing photosynthetic reactions in a species independent manner. Furthermore, the elucidation of alternative carbon-fixation routes distinct from the Calvin cycle raises possibilities that novel pathways and organisms can be utilized to fix atmospheric carbon dioxide into useful materials.

  5. Improved cycling cryopump

    DOE Patents [OSTI]

    Batzer, T.H.; Call, W.R.

    1984-12-04

    The present invention is designed to achieve continuous high efficiency cryopumping of a vacuum vessel by improving upon and combining in a novel way the cryopumping in a novel way the cryopumping methods. The invention consists of a continuous operation cryopump, with movable louvres, with a high efficiency pumping apparatus. The pumping apparatus includes three cryogenic tubes. They are constructed of a substance of high thermal conductivity, such as aluminum and their exterior surfaces are cryogenic condensing surfaces. Through their interior liquid or gaseous helium from two reservoirs can be made to flow, alternately promoting extreme cooling or allowing some warming.

  6. Improved ion detector

    DOE Patents [OSTI]

    Tullis, A.M.

    1986-01-30

    An improved ion detector device of the ionization detection device chamber type comprises an ionization chamber having a central electrode therein surrounded by a cylindrical electrode member within the chamber with a collar frictionally fitted around at least one of the electrodes. The collar has electrical contact means carried in an annular groove in an inner bore of the collar to contact the outer surface of the electrode to provide electrical contact between an external terminal and the electrode without the need to solder leads to the electrode.

  7. Improved tool grinding machine

    DOE Patents [OSTI]

    Dial, C.E. Sr.

    The present invention relates to an improved tool grinding mechanism for grinding single point diamond cutting tools to precise roundness and radius specifications. The present invention utilizes a tool holder which is longitudinally displaced with respect to the remainder of the grinding system due to contact of the tool with the grinding surface with this displacement being monitored so that any variation in the grinding of the cutting surface such as caused by crystal orientation or tool thicknesses may be compensated for during the grinding operation to assure the attainment of the desired cutting tool face specifications.

  8. AC Transit Demos Three Prototype Fuel Cell Buses | Department of Energy

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

    AC Transit Demos Three Prototype Fuel Cell Buses AC Transit Demos Three Prototype Fuel Cell Buses Fact sheet describes the study being conducted on fuel cell buses at AC Transit. PDF icon 39441.pdf More Documents & Publications Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Third Evaluation Report - Appendices Alameda-Contra Costa Transit District (AC Transit) Fuel Cell Transit Buses: Preliminary Evaluation Results SunLine Expands Horizons with Fuel Cell Bus

  9. Sustainable hydropower in Lower Mekong Countries: Technical assessment and training travel report

    SciTech Connect (OSTI)

    Hadjerioua, Boualem; Witt, Adam M.

    2015-08-01

    The U.S. Agency for International Development (USAID), through their partnership with the U.S. Department of the Interior (DOI), requested the support of Oak Ridge National Laboratory (ORNL) to provide specialized technical assistance as part of the Smart Infrastructure for the Mekong (SIM) Program in Thailand. Introduced in July 2013 by U.S. Secretary of State John Kerry, SIM is a U.S. Government Inter-Agency program that provides Lower Mekong partner countries with targeted, demand-driven technical and scientific assistance to support environmentally sound, climate conscious and socially equitable infrastructure, clean energy development, and water resources optimization. The U.S. Government is committed to supporting sustainable economic development within the region by providing tools, best practices, technical assistance, and lessons learned for the benefit of partner countries. In response to a request from the Electricity Generating Authority of Thailand (EGAT), a SIM project was developed with two main activities: 1) to promote hydropower sustainability and efficiency through technical assessment training at two existing hydropower assets in Thailand, and 2) the design and implementation of one national and two or three regional science and policy workshops, to be co-hosted with EGAT, to build common understanding of and commitment to environmental and social safeguards for Mekong Basin hydropower projects. The U.S. Department of Energy (DOE) is leading the technical assessment (Activity 1), and has contracted ORNL to provide expert technical assistance focused on increasing efficiency at existing projects, with the goal of increasing renewable energy generation at little to no capital cost. ORNL is the leading national laboratory in hydropower analysis, with a nationally recognized and highly qualified team of scientists addressing small to large-scale systems (basin-, regional-, and national-scale) energy generation optimization analysis for DOE. The mission of the ORNL Water Power Program is to develop technologies, decision-support tools, and methods of analysis that enable holistic management of water-dependent energy infrastructure and natural resources in support of the DOE Energy Efficiency and Renewable Energy Office (DOE-EERE), Federal hydropower agencies, Federal Energy Regulatory Commission (FERC), Nuclear Regulatory Commission (NRC), energy producers, and other entities. In support of SIM, ORNL completed technical assessments of two hydropower plants owned and operated by the Electricity Generating Authority of Thailand (EGAT): Vajiralongkorn (VRK), with an installed capacity of 300 MW, and Rajjaprabha (RPB), with an installed capacity of 240MW. Technical assessment is defined as the assessment of hydropower operation and performance, and the identification of potential opportunities for performance improvement through plant optimization. At each plant, the assessment included an initial analysis of hydropower operating and performance metrics, provided by dam owners. After this analysis, ORNL engaged with the plant management team in a skills exchange, where best practices, operational methods, and technical challenges were discussed. The technical assessment process was outlined to plant management followed by a presentation of preliminary results and analysis based on 50 days of operational data. EGAT has agreed to provide a full year of operational data so a complete and detailed assessment that captures seasonal variability can be completed. The results of these assessments and discussions will be used to develop a set of best practices, training, and procedure recommendations to improve the efficiency of the two assessed plants

  10. Track 10: Feedback and Improvement

    Broader source: Energy.gov [DOE]

    ISM Workshop Presentations Knoxville Convention Center, Knoxville, TN August 2009 Track 10: Feedback and Improvement

  11. National Fuel Cell Bus Program: Accelerated Testing Evaluation Report and Appendices, Alameda-Contra Costa Transit District (AC Transit)

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2009-01-01

    This is an evaluation of hydrogen fuel cell transit buses operating at AC Transit in revenue service since March 20, 2006 compared to similar diesel buses operating from the same depot. This evaluation report includes results from November 2007 through October 2008. Evaluation results include implementation experience, fueling station operation, fuel cell bus operations at Golden Gate Transit, and evaluation results at AC Transit (bus usage, availability, fuel economy, maintenance costs, and roadcalls).

  12. Transition of Iodine Analysis to Accelerator Mass Spectrometry

    SciTech Connect (OSTI)

    M. L. Adamic; J. E. Olson; D. D. Jenson; J. G. Eisenmenger; M. G. Watrous

    2012-09-01

    This NA 22 funded research project investigated the transition of iodine isotopic analyses from thermal ionization mass spectrometry (TIMS) to an accelerator mass spectrometry (AMS) system. Previous work (Fiscal Year 2010) had demonstrated comparable data from TIMS and AMS. With AMS providing comparable data with improved background levels and vastly superior sample throughput, improvement in the sample extraction from environmental sample matrices was needed to bring sample preparation throughput closer to the operation level of the instrument. Previous research used an extraction chemistry that was not optimized for yield or refined for reduced labor to prove the principle. This research was done to find an extraction with better yield using less labor per sample to produce a sample ready for the AMS instrument. An extraction method using tetramethyl ammonium hydroxide (TMAH) was developed for removal of iodine species from high volume air filters. The TMAH with gentle heating was superior to the following three extraction methods: ammonium hydroxide aided by sonication, acidic and basic extraction aided by microwave, and ethanol mixed with sodium hydroxide. Taking the iodine from the extraction solvent to being ready for AMS analysis was accomplished by a direct precipitation, as well as, using silver wool to harvest the iodine from the TMAH. Portions of the same filters processed in FY 2010 were processed again with the improved extraction scheme followed by successful analysis by AMS at the Swiss Federal Institute of Technology. The data favorably matched the data obtained in 2010. The time required for analysis has been reduced over the aqueous extraction/AMS approach developed in FY 2010. For a hypothetical batch of 30 samples, the AMS methodology is about 10 times faster than the traditional gas phase chemistry and TIMS analysis. As an additional benefit, background levels for the AMS method are about 1000 times lower than TIMS. This results from the fundamental mechanisms of ionization in the AMS system and which produces a beneficial cleanup of molecular interferences. Continued clean operation of the extraction process was demonstrated through blank analysis included with all sample sets analyzed. INL work showed improvement on the first years demonstration of AMS vs. TIMS. An improved extraction of high volume air filters followed by isotopic analysis by AMS, can be used successfully to make iodine measurements with results comparable to those obtained by filter combustion and TIMS analysis. More progress on the conversion from an extract solution to an AMS sample ready for analysis is still needed. Although the preparation scheme through AMS is already at a higher performing thoughput than TIMS, the chemical preparation cannot match the instrument capability for number of samples per day without further development.

  13. Continuity of states between the cholesteric ? line hexatic transition and the condensation transition in DNA solutions

    SciTech Connect (OSTI)

    Yasar, Selcuk; Podgornik, Rudolf; Valle-Orero, Jessica; Johnson, Mark R.; Parsegian, V. Adrian

    2014-11-05

    A new method of finely temperature-tuning osmotic pressure allows one to identify the cholesteric ? line hexatic transition of oriented or unoriented long-fragment DNA bundles in monovalent salt solutions as first order, with a small but finite volume discontinuity. This transition is similar to the osmotic pressure-induced expanded ? condensed DNA transition in polyvalent salt solutions at small enough polyvalent salt concentrations. Therefore there exists a continuity of states between the two. This finding with the corresponding empirical equation of state, effectively relates the phase diagram of DNA solutions for monovalent salts to that for polyvalent salts and sheds some light on the complicated interactions between DNA molecules at high densities.

  14. Detailed Chemical Kinetic Modeling of Iso-octane SI-HCCI Transition

    SciTech Connect (OSTI)

    Havstad, Mark A; Aceves, Salvador M; McNenly, Matthew J; Piggott, William T; Edwards, Kevin Dean; Wagner, Robert M; Daw, C Stuart; FINNEY, Charles E A

    2010-01-01

    We describe a CHEMKIN-based multi-zone model that simulates the expected combustion variations in a single-cylinder engine fueled with iso-octane as the engine transitions from spark-ignited (SI) combustion to homogenous charge compression ignition (HCCI) combustion. The model includes a 63-species reaction mechanism and mass and energy balances for the cylinder and the exhaust flow. For this study we assumed that the SI-to-HCCI transition is implemented by means of increasing the internal exhaust gas recirculation (EGR) at constant engine speed. This transition scenario is consistent with that implemented in previously reported experimental measurements on an experimental engine equipped with variable valve actuation. We find that the model captures many of the important experimental trends, including stable SI combustion at low EGR (-0.10), a transition to highly unstable combustion at intermediate EGR, and finally stable HCCI combustion at very high EGR (-0.75). Remaining differences between the predicted and experimental instability patterns indicate that there is further room for model improvement.

  15. Exoplanet transit spectroscopy using WFC3: WASP-12 b, WASP-17 b, and WASP-19 b

    SciTech Connect (OSTI)

    Mandell, Avi M.; Haynes, Korey; Sinukoff, Evan; Madhusudhan, Nikku; Burrows, Adam; Deming, Drake

    2013-12-20

    We report an analysis of transit spectroscopy of the extrasolar planets WASP-12 b, WASP-17 b, and WASP-19 b using the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST). We analyze the data for a single transit for each planet using a strategy similar, in certain aspects, to the techniques used by Berta et al., but we extend their methodology to allow us to correct for channel- or wavelength-dependent instrumental effects by utilizing the band-integrated time series and measurements of the drift of the spectrum on the detector over time. We achieve almost photon-limited results for individual spectral bins, but the uncertainties in the transit depth for the band-integrated data are exacerbated by the uneven sampling of the light curve imposed by the orbital phasing of HST's observations. Our final transit spectra for all three objects are consistent with the presence of a broad absorption feature at 1.4 ?m most likely due to water. However, the amplitude of the absorption is less than that expected based on previous observations with Spitzer, possibly due to hazes absorbing in the NIR or non-solar compositions. The degeneracy of models with different compositions and temperature structures combined with the low amplitude of any features in the data preclude our ability to place unambiguous constraints on the atmospheric composition without additional observations with WFC3 to improve the signal-to-noise ratio and/or a comprehensive multi-wavelength analysis.

  16. DETAILED CHEMICAL KINETIC MODELING OF ISO-OCTANE SI-HCCI TRANSITION

    SciTech Connect (OSTI)

    Havstad, M A; Aceves, S M; McNenly, M J; Piggott, W T; Edwards, K D; Wagner, R M; Daw, C S; Finney, C A

    2009-10-12

    The authors describe a CHEMKIN-based multi-zone model that simulates the expected combustion variations in a single-cylinder engine fueled with iso-octane as the engine transitions from spark-ignited (ST) combustion to homogeneous charge compression ignition (HCCI) combustion. The model includes a 63-species reaction mechanism and mass and energy balances for the cylinder and the exhaust flow. For this study they assumed that the SI-to-HCCI transition is implemented by means of increasing the internal exhaust gas recirculation (EGR) at constant engine speed. This transition scneario is consistent with that implemented in previously reported experimental measurements on an experimental engine equipped with variable valve actuation. They find that the model captures many of the important experimental trends, including stable SI combustion at low EGR ({approx} 0.10), a transition to highly unstable combustion at intermediate EGR, and finally stable HCCI combustion at very high EGR ({approx} 0.75). Remaining differences between the predicted and experimental instability patterns indicate that there is further room for model improvement.

  17. Two glass transitions in miscible polymer blends?

    SciTech Connect (OSTI)

    Dudowicz, Jacek; Freed, Karl F.; Douglas, Jack F.

    2014-06-28

    In contrast to mixtures of two small molecule fluids, miscible binary polymer blends often exhibit two structural relaxation times and two glass transition temperatures. Qualitative explanations postulate phenomenological models of local concentration enhancements due to chain connectivity in ideal, fully miscible systems. We develop a quantitative theory that explains qualitative trends in the dynamics of real miscible polymer blends which are never ideal mixtures. The theory is a synthesis of the lattice cluster theory of blend thermodynamics, the generalized entropy theory for glass-formation in polymer materials, and the Kirkwood-Buff theory for concentration fluctuations in binary mixtures.

  18. Dipole transition strengths in {sup 26}Mg

    SciTech Connect (OSTI)

    Schwengner, R.; Wagner, A.; Rusev, G.; Erhard, M.; Junghans, A. R.; Kosev, K.; Schilling, K. D.; Fujita, Y.; De Frenne, D.; Grosse, E.

    2009-03-15

    Excited states with J{sup {pi}}=1{sup +} and 1{sup -} in {sup 26}Mg were studied in a photon-scattering experiment using bremsstrahlung produced by an electron beam of 13.0 MeV kinetic energy provided by the superconducting electron linear accelerator ELBE. We determined the transition strengths from the 1{sup +} and 1{sup -} states to the ground state as well as to low-lying excited states. In addition, we observed a J=1 state at 11.154 MeV, above the neutron-separation energy of 11.093 MeV, and determined its partial {gamma} decay width for the first time.

  19. Shock-to-Detonation Transition simulations

    SciTech Connect (OSTI)

    Menikoff, Ralph

    2015-07-14

    Shock-to-detonation transition (SDT) experiments with embedded velocity gauges provide data that can be used for both calibration and validation of high explosive (HE) burn models. Typically, a series of experiments is performed for each HE in which the initial shock pressure is varied. Here we describe a methodology for automating a series of SDT simulations and comparing numerical tracer particle velocities with the experimental gauge data. Illustrative examples are shown for PBX 9502 using the HE models implemented in the xRage ASC code at LANL.

  20. Collective excitation spectra of transitional even nuclei

    SciTech Connect (OSTI)

    Quentin, P. Paris-11 Univ., 91 - Orsay . Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse); Deloncle, I.; Libert, J. . Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse); Sauvage, J. . Inst. de Physique Nucleaire)

    1990-11-06

    This talk is dealing with the nuclear low energy collective motion as described in the context of microscopic versions of the Bohr Hamiltonian. Two different ways of building microscopically Bohr collective Hamiltonians will be sketched; one within the framework of the Generator Coordinate Method, the other using the Adiabatic Time-Dependent Hartree-Fock-Boholyubov approximation. A sample of recent results will be presented which pertains to the description of transitional even nuclei and to the newly revisited phenomenon of superdeformation at low spin.

  1. Deceleration Orbit Improvements

    SciTech Connect (OSTI)

    Church, M.

    1991-04-26

    During the accelerator studies period of 12/90-1/91 much study time was dedicated to improving the E760 deceleration ramps. 4 general goals were in mind: (1) Reduce the relative orbit deviations from the nominal reference orbit as much as possible. This reduces the potential error in the orbit length calculation - which is the primary source of error in the beam energy calculation. (2) Maximize the transverse apertures. This minimizes beam loss during deceleration and during accidental beam blow-ups. (3) Measure and correct lattice parameters. Knowledge of {gamma}{sub T}, {eta}, Q{sub h}, Q{sub v}, and the dispersion in the straight sections allows for a more accurate energy calculation and reliable SYNCH calculations. (4) Minimize the coupling. This allows one to discern between horizontal and vertical tunes.

  2. Regulatory Streamlining and Improvement

    SciTech Connect (OSTI)

    Mark A. Carl

    2006-07-11

    The Interstate Oil and Gas Compact Commission (IOGCC) engaged in numerous projects outlined under the scope of work discussed in the United States Department of Energy (DOE) grant number DE-FC26-04NT15456 awarded to the IOGCC. Numerous projects were completed that were extremely valuable to state oil and gas agencies as a result of work performed utilizing resources provided by the grant. There are numerous areas in which state agencies still need assistance. This additional assistance will need to be addressed under future scopes of work submitted annually to DOE's Project Officer for this grant. This report discusses the progress of the projects outlined under the grant scope of work for the 2005-2006 areas of interest, which are as follows: Area of Interest No. 1--Regulatory Streamlining and Improvement: This area of interest continues to support IOGCC's regulatory streamlining efforts that include the identification and elimination of unnecessary duplications of efforts between and among state and federal programs dealing with exploration and production on public lands. Area of Interest No. 2--Technology: This area of interest seeks to improve efficiency in states through the identification of technologies that can reduce costs. Area of Interest No. 3--Training and Education: This area of interest is vital to upgrading the skills of regulators and industry alike. Within the National Energy Policy, there are many appropriate training and education opportunities. Education was strongly endorsed by the President's National Energy Policy Development group. Acting through the governors offices, states are very effective conduits for the dissemination of energy education information. While the IOGCC favors the development of a comprehensive, long-term energy education plan, states are also supportive of immediate action on important concerns, such as energy prices, availability and conservation. Area of Interest No. 4--Resource Assessment and Development: This area of interest relates directly to helping maximize production of domestic oil and natural gas resources, including areas that are under explored or have not been adequately defined.

  3. Quantum phase transitions in Bose-Fermi systems

    SciTech Connect (OSTI)

    Petrellis, D.; Leviatan, A.; Iachello, F.

    2011-04-15

    Research Highlights: > We study quantum phase transitions in a system of N bosons and a single-j fermion. > Classical order parameters and correlation diagrams of quantum levels are determined. > The odd fermion strongly influences the location and nature of the phase transition. > Experimental evidence for the U(5)-SU(3) transition in odd-even nuclei is presented. - Abstract: Quantum phase transitions in a system of N bosons with angular momentum L = 0, 2 (s, d) and a single fermion with angular momentum j are investigated both classically and quantum mechanically. It is shown that the presence of the odd fermion strongly influences the location and nature of the phase transition, especially the critical value of the control parameter at which the phase transition occurs. Experimental evidence for the U(5)-SU(3) (spherical to axially-deformed) transition in odd-even nuclei is presented.

  4. Analysis of climatic conditions and preliminary assessment of alternative cooling strategies for houses in California transition climate zones

    SciTech Connect (OSTI)

    Huang, Y.J.; Zhang, H.

    1995-07-01

    This is a preliminary scoping study done as part of the {open_quotes}Alternatives to Compressive Cooling in California Transition Climates{close_quotes} project, which has the goal of demonstrating that houses in the transitional areas between the coast and the Central Valley of California do not require air-conditioning if they are properly designed and operated. The first part of this report analyzes the climate conditions within the transitional areas, with emphasis on design rather than seasonal conditions. Transitional climates are found to be milder but more variable than those further inland. The design temperatures under the most stringent design criteria, e.g. 0.1 % annual, are similar to those in the Valley, but significantly lower under more relaxed design criteria, e.g., 2% annual frequency. Transition climates also have large day-night temperature swings, indicating significant potential for night cooling, and wet-bulb depressions in excess of 25 F, indicating good potential for evaporative cooling. The second part of the report is a preliminary assessment using DOE-2 computer simulations of the effectiveness of alternative cooling and control strategies in improving indoor comfort conditions in two conventional Title-24 houses modeled in various transition climate locations. The cooling measures studied include increased insulation, light colors, low-emissivity glazing, window overhangs, and exposed floor slab. The control strategies studied include natural and mechanical ventilation, and direct and two-stage evaporative cooling. The results indicate the cooling strategies all have limited effectiveness, and need to be combined to produce significant improvements in indoor comfort. Natural and forced ventilation provide similar improvements in indoor conditions, but during peak cooling periods, these will still be above the comfort zone. Two-stage evaporative coolers can maintain indoor comfort at all hours, but not so direct evaporative coolers.

  5. A traveling-wave forward coupler design for a new accelerating mode in a silicon woodpile accelerator

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

    Wu, Ziran; Lee, Chunghun H.; Wootton, Kent P.; Ng, Cho -Kuen; Qi, Minghao H.; England, Robert J.

    2016-03-01

    Silicon woodpile photonic crystals provide a base structure that can be used to build a three-dimensional dielectric waveguide system for high-gradient laser driven acceleration. A new woodpile waveguide design that hosts a phase synchronous, centrally confined accelerating mode is proposed. Comparing with previously discovered silicon woodpile accelerating modes, this mode shows advantages in terms of better electron beam loading and higher achievable acceleration gradient. Several traveling-wave coupler design schemes developed for multi-cell RF cavity accelerators are adapted to the woodpile power coupler design for this new accelerating mode. Design of a forward coupled, highly efficient silicon woodpile accelerator is achieved.more » Simulation shows high efficiency of over 75% of the drive laser power coupled to this fundamental accelerating mode, with less than 15% backward wave scattering. The estimated acceleration gradient, when the coupler structure is driven at the damage threshold fluence of silicon at its operating 1.506 μm wavelength, can reach 185 MV/m. Lastly, a 17-layer woodpile waveguide structure was successfully fabricated, and the measured bandgap is in excellent agreement with simulation.« less

  6. CONFORMANCE IMPROVEMENT USING GELS

    SciTech Connect (OSTI)

    Randall S. Seright

    2004-09-30

    This report describes work performed during the third and final year of the project, ''Conformance Improvement Using Gels.'' Corefloods revealed throughput dependencies of permeability reduction by polymers and gels that were much more prolonged during oil flow than water flow. This behavior was explained using simple mobility ratio arguments. A model was developed that quantitatively fits the results and predicts ''clean up'' times for oil productivity when production wells are returned to service after application of a polymer or gel treatment. X-ray computed microtomography studies of gels in strongly water-wet Berea sandstone and strongly oil-wet porous polyethylene suggested that oil penetration through gel-filled pores occurs by a gel-dehydration mechanism, rather than gel-ripping or gel-displacement mechanisms. In contrast, analysis of data from the University of Kansas suggests that the gel-ripping or displacement mechanisms are more important in more permeable, strongly water-wet sandpacks. These findings help to explain why aqueous gels can reduce permeability to water more than to oil under different conditions. Since cement is the most commonly used material for water shutoff, we considered when gels are preferred over cements. Our analysis and experimental results indicated that cement cannot be expected to completely fill (top to bottom) a vertical fracture of any width, except near the wellbore. For vertical fractures with apertures less than 4 mm, the cement slurry will simply not penetrate very far into the fracture. For vertical fractures with apertures greater than 4 mm, the slurry may penetrate a substantial distance into the bottom part of the fracture. However, except near the wellbore, the upper part of the fracture will remain open due to gravity segregation. We compared various approaches to plugging fractures using gels, including (1) varying polymer content, (2) varying placement (extrusion) rate, (3) using partially formed gels, (4) using combinations of high and low molecular weight (Mw) polymers, (5) using secondary crosslinking reactions, (6) injecting un-hydrated polymer particles, and (7) incorporating particulates. All of these methods showed promise in some aspects, but required performance improvements in other aspects. All materials investigated to date showed significant performance variations with fracture width. High pressure gradients and limited distance of penetration are common problems in tight fractures. Gravity segregation and low resistance to breaching are common problems in wide fractures. These will be key issues to address in future work. Although gels can exhibit disproportionate permeability reduction in fractures, the levels of permeability reduction for oil flow are too high to allow practical exploitation in most circumstances. In contrast, disproportionate permeability reduction provided by gels that form in porous rock (adjacent to the fractures) has considerable potential in fractured systems.

  7. Refines Efficiency Improvement

    SciTech Connect (OSTI)

    WRI

    2002-05-15

    Refinery processes that convert heavy oils to lighter distillate fuels require heating for distillation, hydrogen addition or carbon rejection (coking). Efficiency is limited by the formation of insoluble carbon-rich coke deposits. Heat exchangers and other refinery units must be shut down for mechanical coke removal, resulting in a significant loss of output and revenue. When a residuum is heated above the temperature at which pyrolysis occurs (340 C, 650 F), there is typically an induction period before coke formation begins (Magaril and Aksenova 1968, Wiehe 1993). To avoid fouling, refiners often stop heating a residuum before coke formation begins, using arbitrary criteria. In many cases, this heating is stopped sooner than need be, resulting in less than maximum product yield. Western Research Institute (WRI) has developed innovative Coking Index concepts (patent pending) which can be used for process control by refiners to heat residua to the threshold, but not beyond the point at which coke formation begins when petroleum residua materials are heated at pyrolysis temperatures (Schabron et al. 2001). The development of this universal predictor solves a long standing problem in petroleum refining. These Coking Indexes have great potential value in improving the efficiency of distillation processes. The Coking Indexes were found to apply to residua in a universal manner, and the theoretical basis for the indexes has been established (Schabron et al. 2001a, 2001b, 2001c). For the first time, a few simple measurements indicates how close undesired coke formation is on the coke formation induction time line. The Coking Indexes can lead to new process controls that can improve refinery distillation efficiency by several percentage points. Petroleum residua consist of an ordered continuum of solvated polar materials usually referred to as asphaltenes dispersed in a lower polarity solvent phase held together by intermediate polarity materials usually referred to as resins. The Coking Indexes focus on the amount of these intermediate polarity species since coke formation begins when these are depleted. Currently the Coking Indexes are determined by either titration or solubility measurements which must be performed in a laboratory. In the current work, various spectral, microscopic, and thermal techniques possibly leading to on-line analysis were explored for measuring the Coking Indexes.

  8. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five compressed natural gas (CNG) buses. This is the fifth evaluation report for this site, and it describes results and experiences from October 2008 through June 2009. These results are an addition to those provided in the previous four evaluation reports.

  9. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report and Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five new compressed natural gas (CNG) buses. This is the fourth evaluation report for this site, and it describes results and experiences from April 2008 through October 2008.

  10. King County Metro Transit: Allison Hybrid Electric Transit Bus Laboratory Testing

    SciTech Connect (OSTI)

    Hayes, R. R.; Williams, A.; Ireland, J.; Walkowicz, K.

    2006-09-01

    Paper summarizes chassis dynamometer testing of two 60-foot articulated transit buses, one conventional and one hybrid, at NREL's ReFUEL Laboratory. It includes experimental setup, test procedures, and results from vehicle testing performed at the NREL ReFUEL laboratory.

  11. Connecticut Transit (CTTRANSIT) Fuel Cell Transit Bus: Second Evaluation Report and Appendices

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2009-05-01

    This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three new diesel buses operating from the same location. The evaluation period in this report (January 2008 through February 2009) has been chosen to coincide with a UTC Power propulsion system changeout that occurred on January 15, 2008.

  12. SunLine Transit Agency Hydrogen-Powered Transit Buses: Third Evaluation Report-- Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a protoype fuel cell bus, a prototype hydrogen hybrid interal combustion engine bus, and five new compressed natural gas buses. For main report, see NREL/TP-560-43741.

  13. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report-- Appendices

    Broader source: Energy.gov [DOE]

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five compressed natural gas (CNG) buses. This is the fifth evaluation report for this site, and it describes results and experiences from October 2008 through June 2009. These results are an addition to those provided in the previous four evaluation reports.

  14. SunLine Transit Agency Fuel Cell Transit Bus: Fifth Evaluation Report (Report and Appendices)

    SciTech Connect (OSTI)

    Eudy, L.; Chandler, K.

    2009-08-01

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five compressed natural gas (CNG) buses. This is the fifth evaluation report for this site, and it describes results and experiences from October 2008 through June 2009. These results are an addition to those provided in the previous four evaluation reports.

  15. SunLine Transit Agency Fuel Cell Transit Bus: Fourth Evaluation Report (Report and Appendices)

    SciTech Connect (OSTI)

    Chandler, K.; Eudy, L.

    2009-01-01

    This report describes operations at SunLine Transit Agency for a prototype fuel cell bus and five new compressed natural gas (CNG) buses. This is the fourth evaluation report for this site, and it describes results and experiences from April 2008 through October 2008. These results are an addition to those provided in the previous three evaluation reports.

  16. IMPROVED BONDING METHOD

    DOE Patents [OSTI]

    Padgett, E.V. Jr.; Warf, D.H.

    1964-04-28

    An improved process of bonding aluminum to aluminum without fusion by ultrasonic vibrations plus pressure is described. The surfaces to be bonded are coated with an aqueous solution of alkali metal stearate prior to assembling for bonding. (AEC) O H19504 Present information is reviewed on steady state proliferation, differentiation, and maturation of blood cells in mammals. Data are cited from metabolic tracer studies, autoradiographic studies, cytologic studies, studies of hematopoietic response to radiation injuries, and computer analyses of blood cell production. A 3-step model for erythropoiesis and a model for granulocyte kinetics are presented. New approaches to the study of lymphocytopoiesis described include extracorporeal blood irradiation to deplete lymphocytic tissue without direct injury to the formative tissues as a means to study the stressed system, function control, and rates of proliferation. It is pointed out that present knowledge indicates that lymphocytes comprise a mixed family, with diverse life spans, functions, and migration patterns with apparent aimless recycling from modes to lymph to blood to nodes that has not yet been quantitated. Areas of future research are postulated. (70 references.) (C.H.)

  17. Environmental management during economic transition: Ukraine--A case study

    SciTech Connect (OSTI)

    Kempen van, T.H.; Demydenko, A.O.

    1995-12-01

    After dissolution of Soviet Union, each new States had to confront the legacy of an unsustainable, and ultimately failed, economic and political system. Enormous environmental problems resulted from centrally planned economics, which promoted rapid growth through exploitation of the former Soviet Union`s (FSU) vast natural resources. Unconstrained by scarcity-based pricing, extractive and heavy industry ministries created huge, inefficient, and heavily polluting enterprises. The region also experienced extensive forest-cutting, steady deterioration of soils, and contaminated runoff and infiltration from over-excessive application of agrichemicals. The fate of the environment will depend largely on successful transition to a market-based economy. Funds for environmental protection will remain scarce, and poor technology combined with a degraded and overworked infrastructure will slow cleanup of contaminated regions. With failed economies, policy-makers and legislators will be forced to overlook sustainable development as they exploit natural resources in an effort to produce food and obtain hard currency. Ukraine, the second-most populous republic of the FSU, experienced possibly the world`s greatest single environment disaster--the 1986 Chernobyl catastrophe. Today, heavy industry, with its resource-intensive and highly polluting technologies, contributes 61% of Ukraine`s GNP, in comparison with 34% in the European Union. Energy production is grossly inefficient. Environmental agencies in Ukraine are new, with limited legal or economic tools, financial resources, or technical skills. Yet the country has commenced environmental management initiatives that, when combined with economic reforms, will start to improve environmental conditions. This paper presents an overview of Ukraine`s environmental and economic conditions, steps already undertaken to manage the environment, and additional measures needed to improve the situation.

  18. Enhancing conductivity of metallic carbon nanotube networks by transition metal adsorption

    SciTech Connect (OSTI)

    Ketolainen, T. Havu, V.; Puska, M. J.

    2015-02-07

    The conductivity of carbon nanotube thin films is mainly determined by carbon nanotube junctions, the resistance of which can be reduced by several different methods. We investigate electronic transport through carbon nanotube junctions in a four-terminal configuration, where two metallic single-wall carbon nanotubes are linked by a group 6 transition metal atom. The transport calculations are based on the Greens function method combined with the density-functional theory. The transition metal atom is found to enhance the transport through the junction near the Fermi level. However, the size of the nanotube affects the improvement in the conductivity. The enhancement is related to the hybridization of chromium and carbon atom orbitals, which is clearly reflected in the character of eigenstates near the Fermi level. The effects of chromium atoms and precursor molecules remaining adsorbed on the nanotubes outside the junctions are also examined.

  19. Transition Metal Oxide Alloys as Potential Solar Energy Conversion Materials

    SciTech Connect (OSTI)

    Toroker, Maytal; Carter, Emily A.

    2013-02-21

    First-row transition metal oxides (TMOs) are inexpensive potentia alternative materials for solar energy conversion devices. However, some TMOs, such as manganese(II) oxide, have band gaps that are too large for efficiently absorbing solar energy. Other TMOs, such as iron(II) oxide, have conduction and valence band edges with the same orbital character that may lead to unfavorably high electronhole recombination rates. Another limitation of iron(II) oxide is that the calculated valence band edge is not positioned well for oxidizing water. We predict that key properties, including band gaps, band edge positions, and possibly electronhole recombination rates, may be improved by alloying TMOs that have different band alignments. A new metric, the band gap center offset, is introduced for simple screening of potential parent materials. The concept is illustrated by calculating the electronic structure of binary oxide alloys that contain manganese, nickel, iron, zinc, and/or magnesium, within density functional theory (DFT)+U and hybrid DFT theories. We conclude that alloys of iron(II) oxide are worth evaluating further as solar energy conversion materials.

  20. Project Management Improvements Drive Progress

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – Improving project management has been a top priority of EM’s senior leadership.

  1. CONFORMANCE IMPROVEMENT USING GELS

    SciTech Connect (OSTI)

    Randall S. Seright

    2003-09-01

    This report describes work performed during the second year of the project, ''Conformance Improvement Using Gels.'' The project has two objectives. The first objective is to identify gel compositions and conditions that substantially reduce flow through fractures that allow direct channeling between wells, while leaving secondary fractures open so that high fluid injection and production rates can be maintained. The second objective is to optimize treatments in fractured production wells, where the gel must reduce permeability to water much more than that to oil. Pore-level images from X-ray computed microtomography were re-examined for Berea sandstone and porous polyethylene. This analysis suggests that oil penetration through gel-filled pores occurs by a gel-dehydration mechanism, rather than a gel-ripping mechanism. This finding helps to explain why aqueous gels can reduce permeability to water more than to oil. We analyzed a Cr(III)-acetate-HPAM gel treatment in a production well in the Arbuckle formation. The availability of accurate pressure data before, during, and after the treatment was critical for the analysis. After the gel treatment, water productivity was fairly constant at about 20% of the pre-treatment value. However, oil productivity was stimulated by a factor of 18 immediately after the treatment. During the six months after the treatment, oil productivity gradually decreased to approach the pre-treatment value. To explain this behavior, we proposed that the fracture area open to oil flow was increased substantially by the gel treatment, followed by a gradual closing of the fractures during subsequent production. For a conventional Cr(III)-acetate-HPAM gel, the delay between gelant preparation and injection into a fracture impacts the placement, leakoff, and permeability reduction behavior. Formulations placed as partially formed gels showed relatively low pressure gradients during placement, and yet substantially reduced the flow capacity of fractures (with widths from 1 to 4 mm) during brine and oil flow after placement. Regardless of gel age before placement, very little gel washed out from the fractures during brine or oil flow. However, increased brine or oil flow rate and cyclic injection of oil and water significantly decreased the level of permeability reduction. A particular need exists for gels that can plug large apertures (e.g., wide fractures and vugs). Improved mechanical strength and stability were demonstrated (in 1- to 4-mm-wide fractures) for a gel that contained a combination of high- and low-molecular weight polymers. This gel reduced the flow capacity of 2- and 4-mm-wide fractures by 260,000. In a 1-mm-wide fracture, it withstood 26 psi/ft without allowing any brine flow through the fracture. Cr(III)-acetate-HPAM gels exhibited disproportionate permeability reduction in fractures. The effect was most pronounced when the gel was placed as gelant or partially formed gels. The effect occurred to a modest extent with concentrated gels and with gels that were ''fully formed'' when placed. The effect was not evident in tubes. We explored swelling polymers for plugging fractures. Polymer suspensions were quickly prepared and injected. In concept, the partially dissolved polymer would lodge and swell to plug the fracture. For three types of swelling polymers, behavior was promising. However, additional development is needed before their performance will be superior to that of conventional gels.

  2. Virtuality Distributions and Pion Transition Form Factor

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

    Radyushkin, Anatoly V.

    2015-03-01

    Using the example of hard exclusive transition process γ*γ → π0 at the handbag level, we outline basics of a new approach to transverse momentum dependence in hard processes. In coordinate representation, matrix elements of operators (in the simplest case, bilocal O(0,z)) describing a hadron with momentum p, are functions of (pz) and z2 parametrized through virtuality distribution amplitudes (VDA) Φ(x, σ), with x being Fourier-conjugate to (pz) and σ Laplace-conjugate to z2. For intervals with z+=0, we introduce the transverse momentum distribution amplitude (TMDA) Ψ(x, k_perp), and write it in terms of VDA Φ(x,σ). We propose models for softmore » VDAs/TMDAs, and use them for comparison of handbag results with experimental (BaBar and BELLE) data. We also discuss the generation of hard tails of TMDAs from initially soft forms.« less

  3. FFTF Plant transition mission analysis report

    SciTech Connect (OSTI)

    Lund, D.P.

    1995-05-25

    FFTF (Fast Flux Test Facility) is a 400-MW(t) sodium-cooled, fast flux test reactor at Hanford, designed to test fuels and materials for advanced nuclear power plants; it has no capability for generating electric power. Since a long-term mission could not be found for FFTF, it was placed in standby, and a recommendation was made that it be shut down. Purpose of the FFTF Transition Project is to prepare it for Decontamination and Decommissioning; this will be accomplished by establishing a passively safe and environmentally secure configuration, that can be preserved for several decades. This report presents the results of the mission analysis, which is required by Hanford systems engineering procedures.

  4. Pressure induced phase transitions in ceramic compounds containing tetragonal zirconia

    SciTech Connect (OSTI)

    Sparks, R.G.; Pfeiffer, G.; Paesler, M.A.

    1988-12-01

    Stabilized tetragonal zirconia compounds exhibit a transformation toughening process in which stress applied to the material induces a crystallographic phase transition. The phase transition is accompanied by a volume expansion in the stressed region thereby dissipating stress and increasing the fracture strength of the material. The hydrostatic component of the stress required to induce the phase transition can be investigated by the use of a high pressure technique in combination with Micro-Raman spectroscopy. The intensity of Raman lines characteristic for the crystallographic phases can be used to calculate the amount of material that has undergone the transition as a function of pressure. It was found that pressures on the order of 2-5 kBar were sufficient to produce an almost complete transition from the original tetragonal to the less dense monoclinic phase; while a further increase in pressure caused a gradual reversal of the transition back to the original tetragonal structure.

  5. A smooth transition to hydrogen transportation fuel

    SciTech Connect (OSTI)

    Berry, G.D.; Smith, J.R.; Schock, R.N.

    1995-04-14

    The goal of this work is to examine viable near-term infrastructure options for a transition to hydrogen fueled vehicles and to suggest profitable directions for technology development. The authors have focused in particular on the contrasting options of decentralized production using the existing energy distribution network, and centralized production of hydrogen with a large-scale infrastructure. Delivered costs have been estimated using best available industry cost and deliberately conservative economic assumptions. The sensitivities of these costs have then been examined for three small-scale scenarios: (1) electrolysis at the home for one car, and production at the small station scale (300 cars/day), (2) conventional alkaline electrolysis and (3) steam reforming of natural gas. All scenarios assume fueling a 300 mile range vehicle with 3.75 kg. They conclude that a transition appears plausible, using existing energy distribution systems, with home electrolysis providing fuel costing 7.5 to 10.5{cents}/mile, station electrolysis 4.7 to 7.1{cents}/mile, and steam reforming 3.7 to 4.7{cents}/mile. The average car today costs about 6{cents}/mile to fuel. Furthermore, analysis of liquid hydrogen delivered locally by truck from central processing plants can also be competitive at costs as low as 4{cents}/mile. These delivered costs are equal to $30 to $70 per GJ, LHV. Preliminary analysis indicates that electricity transmission costs favor this method of distributing energy, until very large (10 GW) hydrogen pipelines are installed. This indicates that significant hydrogen pipeline distribution will be established only when significant markets have developed.

  6. Dynamic Analysis of Fuel Cycle Transitioning

    SciTech Connect (OSTI)

    Brent Dixon; Steve Piet; David Shropshire; Gretchen Matthern

    2009-09-01

    This paper examines the time-dependent dynamics of transitioning from a once-through fuel cycle to a closed fuel cycle. The once-through system involves only Light Water Reactors (LWRs) operating on uranium oxide fuel UOX), while the closed cycle includes both LWRs and fast spectrum reactors (FRs) in either a single-tier system or two-tier fuel system. The single-tier system includes full transuranic recycle in FRs while the two-tier system adds one pass of mixed oxide uranium-plutonium (MOX U-Pu) fuel in the LWR. While the analysis primarily focuses on burner fast reactors, transuranic conversion ratios up to 1.0 are assessed and many of the findings apply to any fuel cycle transitioning from a thermal once-through system to a synergistic thermal-fast recycle system. These findings include uranium requirements for a range of nuclear electricity growth rates, the importance of back end fuel cycle facility timing and magnitude, the impact of employing a range of fast reactor conversion ratios, system sensitivity to used fuel cooling time prior to recycle, impacts on a range of waste management indicators, and projected electricity cost ranges for once-through, single-tier and two-tier systems. The study confirmed that significant waste management benefits can be realized as soon as recycling is initiated, but natural uranium savings are minimal in this century. The use of MOX in LWRs decouples the development of recycle facilities from fast reactor fielding, but also significantly delays and limits fast reactor deployment. In all cases, fast reactor deployment was significantly below than predicted by static equilibrium analyses.

  7. Interstate Electrification Improvement Project

    SciTech Connect (OSTI)

    Puckette, Margaret; Kim, Jeff

    2015-07-01

    The Interstate Electrification Improvement Project, publicly known as the Shorepower Truck Electrification Project (STEP), started in May 2011 and ended in March 2015. The project grant was awarded by the Department of Energy’s Vehicles Technology Office in the amount of $22.2 million. It had three overarching missions: 1. Reduce the idling of Class 8 tractors when parked at truck stops, to reduce diesel fuel consumption and thus U.S. dependence on foreign petroleum; 2. Stimulate job creation and economic activity as part of the American Reinvestment and Recovery Act of 2009; 3. Reduce greenhouse gas emissions (GHG) from diesel combustion and the carbon footprint of the truck transportation industry. The project design was straightforward. First, build fifty Truck Stop Electrification (TSE) facilities in truck stop parking lots across the country so trucks could plug-in to 110V, 220V, or 480VAC, and shut down the engine instead of idling. These facilities were strategically located at fifty truck stops along major U.S. Interstates with heavy truck traffic. Approximately 1,350 connection points were installed, including 150 high-voltage electric standby Transport Refrigeration Unit (eTRU) plugs--eTRUs are capable of plugging in to shore power1 to cool the refrigerated trailer for loads such as produce, meats and ice cream. Second, the project provided financial incentives on idle reduction equipment to 5,000 trucks in the form of rebates, to install equipment compatible with shore power. This equipment enables drivers to shut down the main engine when parked, to heat or cool their cab, charge batteries, or use other household appliances without idling—a common practice that uses approximately 1 gallon of diesel per hour. The rebate recipients were intended to be the first fleets to plug into Shorepower to save diesel fuel and ensure there is significant population of shore power capable trucks. This two part project was designed to complement each other by providing: 1) the infrastructure to plug into and 2) the on-board equipment capable of plugging into the infrastructure. This project generated the largest dataset to date on shore power TSE utilization and use patterns, providing: insight into driver behavior and acceptance; evidence of cost savings; experience with system operations and management; and data for guiding future development of shore power, whether as a private enterprise or a publicly-subsidized service for meeting air quality goals.

  8. CBEI: Transitioning Technology to the Market - 2015 Peer Review |

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

    Department of Energy Transitioning Technology to the Market - 2015 Peer Review CBEI: Transitioning Technology to the Market - 2015 Peer Review Presenter: Tim Wagner, UTRC View the Presentation PDF icon CBEI: Transitioning Technology to the Market - 2015 Peer Review More Documents & Publications CBEI: Lessons Learned from Integrated Retrofits in Small and Medium Sized Commercial Buildings - 2015 Peer Review CBEI: HVAC Packages for Small and Medium Sized Commercial Buildings - 2015 Peer

  9. Ferroelasticity and domain physics in two-dimensional transition metal

    Office of Scientific and Technical Information (OSTI)

    dichalcogenide monolayers (Journal Article) | DOE PAGES Accepted Manuscript: Ferroelasticity and domain physics in two-dimensional transition metal dichalcogenide monolayers « Prev Next » Title: Ferroelasticity and domain physics in two-dimensional transition metal dichalcogenide monolayers Monolayers of transition metal dichalcogenides can exist in several structural polymorphs, including 2H, 1T and 1T'. The low-symmetry 1T' phase has three orientation variants, resulting from the three

  10. Modeling non-equilibrium phase transitions in isentropically compressed Bi

    Office of Scientific and Technical Information (OSTI)

    (Conference) | SciTech Connect Conference: Modeling non-equilibrium phase transitions in isentropically compressed Bi Citation Details In-Document Search Title: Modeling non-equilibrium phase transitions in isentropically compressed Bi We report here on modeling of non-equilibrium phase transitions in Bi samples isentropically compressed to 120 GPa by a ramped drive, which is produced using the Janus laser. In the experiments, the Bi samples are attached to windows of LiF or sapphire, and

  11. Two Phase Transitions Make a High-Temperature Superconductor

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

    Two Phase Transitions Make a High-Temperature Superconductor Two Phase Transitions Make a High-Temperature Superconductor Print Wednesday, 30 November 2011 00:00 Superconductivity-conceptually remarkable and practically revolutionary-is a quantum phenomenon in which bound electron pairs flow through a material in perfect synchrony, without friction. Conventional superconducting materials reach this state via a single thermal phase transition at a critical temperature (Tc). It was generally

  12. Building America Expert Meeting: Transitioning Traditional HVAC Contractors

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

    to Whole House Performance Contractors | Department of Energy Transitioning Traditional HVAC Contractors to Whole House Performance Contractors Building America Expert Meeting: Transitioning Traditional HVAC Contractors to Whole House Performance Contractors IBACOS held an Expert Meeting on the topic of Transitioning Traditional HVAC Contractors to Whole House Performance Contractors on March 29, 2011 in San Francisco, CA. The major objectives of the meeting were to: Review and validate the

  13. Energy Transition Initiative Energy Scenario Tool | Department of Energy

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

    Energy Transition Initiative Energy Scenario Tool Energy Transition Initiative Energy Scenario Tool The ETI Energy Scenario Tool helps communities analyze different pathways to meet a given energy transition goal by modeling the levelized cost of electricity for custom, user-defined scenarios of supply and demand. Download the tool and user guide below. For step-by-step instructions on how to use the tool, watch the video. Package icon ETI Energy Scenario Tool PDF icon ETI Energy Scenario Tool

  14. BC Transit Fuel Cell Bus Project: Evaluation Results Report

    SciTech Connect (OSTI)

    Eudy, L.; Post, M.

    2014-02-01

    This report evaluates a fuel cell electric bus demonstration led by British Columbia Transit (BC Transit) in Whistler, Canada. BC Transit is collaborating with the California Air Resources Board and the U.S. Department of Energy's National Renewable Energy Laboratory to evaluate the buses in revenue service. This evaluation report covers two years of revenue service data on the buses from April 2011 through March 2013.

  15. POLICY GUIDANCE MEMORANDUM #19 Guidance on Transition to Eliminate FCIP

    Energy Savers [EERE]

    (Expired) | Department of Energy 9 Guidance on Transition to Eliminate FCIP (Expired) POLICY GUIDANCE MEMORANDUM #19 Guidance on Transition to Eliminate FCIP (Expired) THIS GUIDANCE HAS EXPIRED Guidance on the elimination of the Federal Career Intern Program (FCIP) PDF icon POLICY GUIDANCE MEMORANDUM #19 Guidance on Transition to Eliminate FCIP (Expired) Responsible Contacts Ahtora Brooks Human Resource Specialists E-mail Ahtora.Brooks@Hq.Doe.Gov Phone 202-586-1239 More Documents &

  16. NNSA, Argentina Transition Radiation Detection System | National Nuclear

    National Nuclear Security Administration (NNSA)

    Security Administration Argentina Transition Radiation Detection System May 19, 2014 WASHINGTON, D.C. - The National Nuclear Security Administration (NNSA) and the Government of Argentina recently completed the transition of full responsibility for the radiation detection systems located at the Port of Buenos Aires and Port of Dock Sud at an official signing in Argentina's capital of Buenos Aires. This transition reflects the strong commitment of Argentina's government to deter, detect and

  17. Proximity-induced magnetism in transition-metal substituted graphene

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Proximity-induced magnetism in transition-metal substituted graphene Citation Details In-Document Search Title: Proximity-induced magnetism in transition-metal substituted graphene We investigate the interactions between two identical magnetic impurities substituted into a graphene superlattice. Using a first-principles approach, we calculate the electronic and magnetic properties for transition-metal substituted graphene systems with varying spatial

  18. Proximity-induced magnetism in transition-metal substituted graphene

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | DOE PAGES Accepted Manuscript: Proximity-induced magnetism in transition-metal substituted graphene Title: Proximity-induced magnetism in transition-metal substituted graphene We investigate the interactions between two identical magnetic impurities substituted into a graphene superlattice. Using a first-principles approach, we calculate the electronic and magnetic properties for transition-metal substituted graphene systems with varying spatial separation. These

  19. Gravitational waves from global second order phase transitions

    SciTech Connect (OSTI)

    Jr, John T. Giblin; Price, Larry R.; Siemens, Xavier; Vlcek, Brian E-mail: larryp@caltech.edu E-mail: bvlcek@uwm.edu

    2012-11-01

    Global second-order phase transitions are expected to produce scale-invariant gravitational wave spectra. In this manuscript we explore the dynamics of a symmetry-breaking phase transition using lattice simulations. We explicitly calculate the stochastic gravitational wave background produced during the transition and subsequent self-ordering phase. We comment on this signal as it compares to the scale-invariant spectrum produced during inflation.

  20. Letter: Transition of Closure Sites from the Office of Environmental

    Office of Environmental Management (EM)

    Management to other DOE Organizations | Department of Energy Transition of Closure Sites from the Office of Environmental Management to other DOE Organizations Letter: Transition of Closure Sites from the Office of Environmental Management to other DOE Organizations From: Deputy Secretary of Energy, Kyle E. McSlarrow (DS-1) To: Todd Martin, Chair, Hanford Advisory Board This letter discusses the transition of closure sites from the Office of Environmental Management to other Department of